Most of Nathaniel Hawthorne's masterpieces are created with the theme of morality,and are used to analysis and reveal"good and evil human nature"through the methods of profound symbolism and delicate psy...Most of Nathaniel Hawthorne's masterpieces are created with the theme of morality,and are used to analysis and reveal"good and evil human nature"through the methods of profound symbolism and delicate psychological description. To reemerge the spirit of The Scarlet Letter,Which is considered as Hawthorne's religious view and humanistic feeling,the death of two heroes in this novel should be analyzed in the aspects of religion and human nature,and even in the aspects of the vocabulary,theme and mental world of main characters.展开更多
The identity of Eastern and Western cultures should include aspects such as its concepts of societal development and science and technology.Though this is related to issues like history of the culture and regional cul...The identity of Eastern and Western cultures should include aspects such as its concepts of societal development and science and technology.Though this is related to issues like history of the culture and regional cultural psychologies,the essence lies in the identity of social values at its core.展开更多
Mitochondrial function is fundamental to neuroregeneration,particularly in neurons,where high energy demands are essential for repair and recovery(Patrón and Zinsmaier,2016;Beckervordersandforth et al.,2017;Iwata...Mitochondrial function is fundamental to neuroregeneration,particularly in neurons,where high energy demands are essential for repair and recovery(Patrón and Zinsmaier,2016;Beckervordersandforth et al.,2017;Iwata et al.,2023).Mitochondrial dysfunction,characterized by an imbalance in ATP levels and excessive production of mitochondrial reactive oxygen species,is a key factor that impedes neural regeneration in neurodegenerative diseases and after neuronal injury(Han et al.,2016,2020;Zheng et al.,2016;Zong et al.,2024).展开更多
Introduction to human endogenous retrovirus type-W(HERV-W): Genomic inheritance from the past includes retroviral sequences that have been stably incorporated into our genomes and account for up to 8% of human DNA.
Spinal cord injury results in the loss of sensory,motor,and autonomic functions,which almost always produces permanent physical disability.Thus,in the search for more effective treatments than those already applied fo...Spinal cord injury results in the loss of sensory,motor,and autonomic functions,which almost always produces permanent physical disability.Thus,in the search for more effective treatments than those already applied for years,which are not entirely efficient,researches have been able to demonstrate the potential of biological strategies using biomaterials to tissue manufacturing through bioengineering and stem cell therapy as a neuroregenerative approach,seeking to promote neuronal recovery after spinal cord injury.Each of these strategies has been developed and meticulously evaluated in several animal models with the aim of analyzing the potential of interventions for neuronal repair and,consequently,boosting functional recovery.Although the majority of experimental research has been conducted in rodents,there is increasing recognition of the importance,and need,of evaluating the safety and efficacy of these interventions in non-human primates before moving to clinical trials involving therapies potentially promising in humans.This article is a literature review from databases(PubMed,Science Direct,Elsevier,Scielo,Redalyc,Cochrane,and NCBI)from 10 years ago to date,using keywords(spinal cord injury,cell therapy,non-human primates,humans,and bioengineering in spinal cord injury).From 110 retrieved articles,after two selection rounds based on inclusion and exclusion criteria,21 articles were analyzed.Thus,this review arises from the need to recognize the experimental therapeutic advances applied in non-human primates and even humans,aimed at deepening these strategies and identifying the advantages and influence of the results on extrapolation for clinical applicability in humans.展开更多
Glial cells play crucial roles in regulating physiological and pathological functions,including sensation,the response to infection and acute injury,and chronic neurodegenerative disorders.Glial cells include astrocyt...Glial cells play crucial roles in regulating physiological and pathological functions,including sensation,the response to infection and acute injury,and chronic neurodegenerative disorders.Glial cells include astrocytes,microglia,and oligodendrocytes in the central nervous system,and satellite glial cells and Schwann cells in the peripheral nervous system.Despite the greater understanding of glial cell types and functional heterogeneity achieved through single-cell and single-nucleus RNA sequencing in animal models,few studies have investigated the transcriptomic profiles of glial cells in the human spinal cord.Here,we used high-throughput single-nucleus RNA sequencing and spatial transcriptomics to map the cellular and molecular heterogeneity of astrocytes,microglia,and oligodendrocytes in the human spinal cord.To explore the conservation and divergence across species,we compared these findings with those from mice.In the human spinal cord,astrocytes,microglia,and oligodendrocytes were each divided into six distinct transcriptomic subclusters.In the mouse spinal cord,astrocytes,microglia,and oligodendrocytes were divided into five,four,and five distinct transcriptomic subclusters,respectively.The comparative results revealed substantial heterogeneity in all glial cell types between humans and mice.Additionally,we detected sex differences in gene expression in human spinal cord glial cells.Specifically,in all astrocyte subtypes,the levels of NEAT1 and CHI3L1 were higher in males than in females,whereas the levels of CST3 were lower in males than in females.In all microglial subtypes,all differentially expressed genes were located on the sex chromosomes.In addition to sex-specific gene differences,the levels of MT-ND4,MT2A,MT-ATP6,MT-CO3,MT-ND2,MT-ND3,and MT-CO_(2) in all spinal cord oligodendrocyte subtypes were higher in females than in males.Collectively,the present dataset extensively characterizes glial cell heterogeneity and offers a valuable resource for exploring the cellular basis of spinal cordrelated illnesses,including chronic pain,amyotrophic lateral sclerosis,and multiple sclerosis.展开更多
TAU is a microtubule-associated protein that promotes microtubule assembly and stability in the axon.TAU is missorted and aggregated in an array of diseases known as tauopathies.Microtubules are essential for neuronal...TAU is a microtubule-associated protein that promotes microtubule assembly and stability in the axon.TAU is missorted and aggregated in an array of diseases known as tauopathies.Microtubules are essential for neuronal function and regulated via a complex set of post-translational modifications,changes of which affect microtubule stability and dynamics,microtubule interaction with other proteins and cellular structures,and mediate recruitment of microtubule-severing enzymes.As impairment of microtubule dynamics causes neuronal dysfunction,we hypothesize cognitive impairment in human disease to be impacted by impairment of microtubule dynamics.We therefore aimed to study the effects of a disease-causing mutation of TAU(P301L)on the levels and localization of microtubule post-translational modifications indicative of microtubule stability and dynamics,to assess whether P301L-TAU causes stability-changing modifications to microtubules.To investigate TAU localization,phosphorylation,and effects on tubulin post-translational modifications,we expressed wild-type or P301L-TAU in human MAPT-KO induced pluripotent stem cell-derived neurons(i Neurons)and studied TAU in neurons in the hippocampus of mice transgenic for human P301L-TAU(p R5 mice).Human neurons expressing the longest TAU isoform(2N4R)with the P301L mutation showed increased TAU phosphorylation at the AT8,but not the p-Ser-262 epitope,and increased polyglutamylation and acetylation of microtubules compared with endogenous TAU-expressing neurons.P301L-TAU showed pronounced somatodendritic presence,but also successful axonal enrichment and a similar axodendritic distribution comparable to exogenously expressed 2N4R-wildtype-TAU.P301L-TAU-expressing hippocampal neurons in transgenic mice showed prominent missorting and tauopathy-typical AT8-phosphorylation of TAU and increased polyglutamylation,but reduced acetylation,of microtubules compared with non-transgenic littermates.In sum,P301L-TAU results in changes in microtubule PTMs,suggestive of impairment of microtubule stability.This is accompanied by missorting and aggregation of TAU in mice but not in i Neurons.Microtubule PTMs/impairment may be of key importance in tauopathies.展开更多
In this article,we comment on an article published in a recent issue of the World Journal of Gastroenterology.We specifically focus on the roles of human leukocyte antigen(HLA)and donor-specific antibodies(DSAs)in ped...In this article,we comment on an article published in a recent issue of the World Journal of Gastroenterology.We specifically focus on the roles of human leukocyte antigen(HLA)and donor-specific antibodies(DSAs)in pediatric liver transpl-antation(LT),as well as the relationship between immune rejection after LT and DSA.Currently,LT remains the standard of care for pediatric patients with end-stage liver disease or severe acute liver failure.However,acute and chronic re-jection continues to be a significant cause of graft dysfunction and loss.HLA mismatch significantly reduces graft survival and increases the risk of acute rejection.Among them,D→R one-way mismatch at three loci was significantly related to graft-versus-host disease incidence after LT.The adverse impact of HLA-DSAs on LT recipients is already established.Therefore,the evaluation of HLA and DSA is crucial in pediatric LT.展开更多
Acetyltransferases,required to transfer an acetyl group on protein are highly conserved proteins that play a crucial role in development and disease.Protein acetylation is a common post-translational modification pivo...Acetyltransferases,required to transfer an acetyl group on protein are highly conserved proteins that play a crucial role in development and disease.Protein acetylation is a common post-translational modification pivotal to basic cellular processes.Close to 80%-90%of proteins are acetylated during translation,which is an irreversible process that affects protein structure,function,life,and localization.In this review,we have discussed the various N-acetyltransferases present in humans,their function,and how they might play a role in diseases.Furthermore,we have focused on N-acetyltransferase 9 and its role in microtubule stability.We have shed light on how N-acetyltransferase 9 and acetylation of proteins can potentially play a role in neurodegenerative diseases.We have specifically discussed the N-acetyltransferase 9-acetylation independent function and regulation of c-Jun N-terminal kinase signaling and microtubule stability during development and neurodegeneration.展开更多
BACKGROUND The high prevalence of human papillomavirus(HPV)infection in oropharyngeal squamous cell carcinoma(SCC)is well established,and p16 expression is a strong predictor.HPV-related tumors exhibit unique mechanis...BACKGROUND The high prevalence of human papillomavirus(HPV)infection in oropharyngeal squamous cell carcinoma(SCC)is well established,and p16 expression is a strong predictor.HPV-related tumors exhibit unique mechanisms that target p16 and p53 proteins.However,research on HPV prevalence and the combined predictive value of p16 and p53 expression in head and neck cutaneous SCC(HNCSCC),particularly in Asian populations,remains limited.This retrospective study surveyed 62 patients with HNSCC(2011-2020),excluding those with facial warts or other skin cancer.AIM To explore the prevalence of HPV and the predictive value of p16 and p53 expression in HNCSCC in Asian populations.METHODS All patients underwent wide excision and biopsy.Immunohistochemical staining for HPV,p16,and p53 yielded positive and negative results.The relevance of each marker was investigated by categorizing the tumor locations into high-risk and middle-risk zones based on recurrence frequency.RESULTS Of the 62 patients,20(32.26%)were male,with an average age of 82.27 years(range 26-103 years).High-risk included 19 cases(30.65%),with the eyelid and lip being the most common sites(five cases,8.06%).Middle-risk included 43 cases(69.35%),with the cheek being the most common(29 cases,46.77%).The p16 expression was detected in 24 patients(38.71%),p53 expression in 42 patients(72.58%),and HPV in five patients(8.06%).No significant association was found between p16 expression and the presence of HPV(P>0.99),with a positive predictive value of 8.33%.CONCLUSION This study revealed that p16,a surrogate HPV marker in oropharyngeal SCC,is not reliable in HNCSCC,providing valuable insights for further research in Asian populations.展开更多
BACKGROUND Esophageal squamous cell carcinoma(ESCC)is a malignant tumor with high morbidity and mortality,and easy to develop resistance to chemotherapeutic agents.Telomeres are DNA-protein complexes located at the te...BACKGROUND Esophageal squamous cell carcinoma(ESCC)is a malignant tumor with high morbidity and mortality,and easy to develop resistance to chemotherapeutic agents.Telomeres are DNA-protein complexes located at the termini of chro-mosomes in eukaryotic cells,which are unreplaceable in maintaining the stability and integrity of genome.Telomerase,an RNA-dependent DNA polymerase,play vital role in telomere length maintain,targeting telomerase is a promising therapeutic strategy for cancer.KYSE150 and KYSE410 cells were cultured and exposed to various concentrations of BIBR1532.Cell viability was assessed at 48 hours and 72 hours to determine the IC50 values.The effects of BIBR1532 on ESCC cell proliferation,migration,and cellular senescence were evaluated using the cell counting kit-8 assay,plate colony formation assay,scratch assay,transwell assay,andβ-galactosidase staining,respectively.Western blotting was performed to detect the expression of RESULTS The IC50 values for KYSE150 and KYSE410 cells after 48 hours of BIBR1532 exposure were 48.53μM and 39.59μM,respectively.These values decreased to 37.22μM and 22.71μM,respectively,following a longer exposure of 72 hours.BIBR1532 exhibited dose-dependent effects on KYSE150 and KYSE410 cells,including decreased hTERT expression,inhibition of proliferation and metastasis,and induction of cellular senescence.Mechanistically,BIBR1532 upregulated the expression of the DDR protein,γ-H2AX,and activated the ataxia telangiectasia and Rad3-related protein(ATR)/check point kinase 1(CHK-1)and ataxia-telangiectasia mutated gene(ATM)/CHK2 pathways.BIBR1532 downregulated the expression of telomere-binding proteins,including telomeric-repeat binding factor 1(TRF1),TRF2,protection of telomeres 1,and TIN2-interacting protein 1.In a nude mouse xenograft model,BIBR1532 significantly suppressed tumor growth,reduced hTERT expression,and increasedγ-H2AX protein levels.Hematoxylin and eosin staining of various organs,including the heart,liver,spleen,lungs,and kidneys,revealed no apparent adverse effects.CONCLUSION BIBR1532 exerts anti-cancer effects on ESCC by inducing DDR through the ATR/CHK1 and ATM/CHK2 pathways and downregulating the expression of telomere-binding proteins.展开更多
Human immunodeficiency virus(HIV)modifies CD4-positive cells,resulting in immunodeficiency and a wide range of gastrointestinal(GI)manifestations.The burden of HIV-related GI illnesses has significantly evolved with t...Human immunodeficiency virus(HIV)modifies CD4-positive cells,resulting in immunodeficiency and a wide range of gastrointestinal(GI)manifestations.The burden of HIV-related GI illnesses has significantly evolved with the widespread use of antiretroviral therapy(ART).While ART has effectively reduced the occurrence of opportunistic infections,it has led to an increase in therapy-related GI illnesses.Common esophageal conditions in HIV patients include gastroesophageal reflux disease,idiopathic esophageal ulcers,herpes simplex virus,cytomegalovirus(CMV),and candidal esophagitis.Kaposi’s sarcoma,a hallmark of acquired immunodeficiency syndrome,may affect the entire GI system.Gastritis and peptic ulcer disease are also frequently seen in patients with HIV.Diarrhea,often linked to both opportunistic infections and ART,requires careful evaluation.Bloody diarrhea,often a sign of colitis caused by bacterial infections such as Shigella or Clostridium difficile,is prevalent.Small bowel lymphoma,although rare,is increasing in prevalence.Anorectal disorders,including proctitis,fissures,and anal squamous cell carcinoma,are particularly relevant in homosexual men,underlining the importance of timely diagnosis.This review comprehensively explores the epidemiology,pathogenesis,and treatment considerations for the various GI disorders associated with HIV,highlighting the importance of accurate diagnosis and effective treatment to improve outcomes for HIV-infected patients.展开更多
BACKGROUND Transfusion transmissible infections(TTIs)are illnesses spread through contaminated blood or blood products.In India,screening for TTIs such as hepatitis B virus(HBV),hepatitis C virus(HCV),human immunodefi...BACKGROUND Transfusion transmissible infections(TTIs)are illnesses spread through contaminated blood or blood products.In India,screening for TTIs such as hepatitis B virus(HBV),hepatitis C virus(HCV),human immunodeficiency virus(HIV)-I/II,malaria,and syphilis is mandatory before blood transfusions.Worldwide,HCV,HBV,and HIV are the leading viruses causing mortality,affecting millions of people globally,including those with co-infections of HIV/HCV and HIV/HBV.Studies highlight the impact of TTIs on life expectancy and health risks,such as liver cirrhosis,cancer,and other diseases in individuals with chronic HBV.Globally,millions of blood donations take place annually,emphasizing the importance of maintaining blood safety.AIM To study the prevalence of TTIs,viz.,HBV,HCV,HIV I/II,syphilis,and malaria parasite(MP),among different blood donor groups.METHODS The study assessed the prevalence of TTIs among different blood donor groups in Delhi,India.Groups included total donors,in-house donors,total camp donors,institutional camp donors,and community camp donors.Tests for HIV,HBV,and HCV were done using enzyme-linked immunosorbent assay,while syphilis was tested with rapid plasma reagins and MP rapid card methods.The prevalence of HBV,HCV,HIV,and syphilis,expressed as percentages.Differences in infection rates between the groups were analyzed usingχ²tests and P-values(less than 0.05).RESULTS The study evaluated TTIs among 42158 blood donors in Delhi.The overall cumulative frequency of TTIs in total blood donors was 2.071%,and the frequencies of HBV,HCV,HIV-I/II,venereal disease research laboratory,and MP were 1.048%,0.425%,0.221%,0.377%,and 0.0024%,respectively.In-house donors,representing 37656 donors,had the highest transfusion transmissible infection(TTI)prevalence at 2.167%.Among total camp donors(4502 donors),TTIs were identified in 1.266%of donors,while community camp donors(2439 donors)exhibited a prevalence of 1.558%.Institutional camp donors(2063 donors)had the lowest TTI prevalence at 0.921%.Statistical analysis revealed significant differences in overall TTI prevalence,with total and in-house donors exhibiting higher rates compared to camp donors.CONCLUSION Ongoing monitoring and effective screening programs are essential for minimizing TTIs.Customizing blood safety measures for different donor groups and studying socio-economic-health factors is essential to improving blood safety.展开更多
Confucius emphasises the importance of humaneness (ren 仁)and rites (li 禮).Socrates, on the other hand, is often interpreted as a person who places far more importance on rational thinking, even to the exclusion of n...Confucius emphasises the importance of humaneness (ren 仁)and rites (li 禮).Socrates, on the other hand, is often interpreted as a person who places far more importance on rational thinking, even to the exclusion of natural human feelings, especially on the ground of his attitude towards the sorrow of his wife and friends on his last day as described in Plato's Phaedo. Through clarifying two long-time riddles in this dialogue-namely,"What did Socrates mean by his last words, requesting Crito to offer a cock to Asclepius?", and "Was Plato really absent from the prison on Socrates5 last day, due to illness, as is mentioned by Phaedo?"-this paper argues that Socrates kept in mind the best interest of his wife and friends even at the moment of his death, and that his humane attitude is expressed in his last words, which were not only an expression of gratitude for Plato's recovery from a critical illness but also an exhortation to his friends to continue their care of the soul.展开更多
The prevailing narrative instructs us that humane treatment of captured enemy fighters is down to white knights from the western parts of the European continent with their codes of chivalry, or alternatively, the Swis...The prevailing narrative instructs us that humane treatment of captured enemy fighters is down to white knights from the western parts of the European continent with their codes of chivalry, or alternatively, the Swiss businessman Henri Dunant. This contribution challenges that narrative for overlooking, or being ignorant of, the way that societies around the world have approached the matter of the captured enemy fighter. Traces of some of the critical principles about humane treatment that we see in our present law can actually be found in much older societies from outside of Europe. A more accurate and representative way of understanding humanitarianism in the treatment of captured enemy fighters can and must be crafted, with the prevailing Euro-centric account balanced with practices, cultures and faiths from elsewhere. The quest to achieve more humane treatment in armed conflict is first and foremost a battle of the intellect. Narratives and conceptualisations that are more inclusive, recognising and appreciating of the ways of the rest of the world are likely to be more effective in communicating humanitarian ideals. This work adopts a new method of approaching the richness and diversity of the treatment of captured enemy fighters over time and space. This new framework of analysis uses six cross-cutting themes to facilitate a broader international and comparative perspective, and develop a more sophisticated level of understanding. The first theme is how older and indigenous societies approached the matter of captured enemy fighters. The second focuses on religions of the world, and what they teach or require. The third section examines the matter of martial practices and codes of ethics for combatants in certain societies. The fourth category engages with colonisation and decolonisation, and regulation (or non-regulation) of the treatment of captives of war. Fifth is the issue of modernisation and the impact it has had on armed forces and fighters, including on the treatment of captives. The final issue is the shift towards formalised agreements, beginning with the first bilateral agreements and then the multilateral codification exercise that began in the mid-19th century and continues to this day. This framework for analysis leads into a final chapter, presenting a fresh and holistic view on the evolution of prisoner of war protections in the international order. It provides a different way of looking at International Humanitarian Law, starting with this effort at a global understanding of the treatment of captured enemy fighters.展开更多
Human endogenous retrovirus W family(HERV-W) envelope(env) has been reported to be related to several human diseases, including autoimmune disorders, and it could activate innate immunity.However, there are no reports...Human endogenous retrovirus W family(HERV-W) envelope(env) has been reported to be related to several human diseases, including autoimmune disorders, and it could activate innate immunity.However, there are no reports investigating whether human leukemia antigen(HLA)-A~*0201^+restriction is involved in the immune response caused by HERV-W env in neuropsychiatric diseases. In the present study, HERV-W env-derived epitopes presented by HLA-A~*0201 are described with the potential for use in adoptive immunotherapy. Five peptides displaying HLAA~*0201-binding motifs were predicted using SYFEPITHI and BIMAS, and synthesized. A CCK-8 assay showed peptides W, Q and T promoted lymphocyte proliferation. Stimulation of peripheral blood mononuclear cells from HLA-A~*0201^+ donors with each of these peptides induced peptidespecific CD8^+ T cells. High numbers of IFN-γ-secreting T cells were also detectable after several weekly stimulations with W, Q and T. Besides lysis of HERV-W env-loaded target cells, specific apoptosis was also observed. These data demonstrate that human T cells can be sensitized toward HERV-W env peptides(W, Q and T) and, moreover, pose a high killing potential toward HERV-W env-expressing U251 cells. In conclusion, peptides W Q and T, which are HERV-W env antigenic epitopes, have both antigenicity and immunogenicity, and can cause strong T cell immune responses. Our data strengthen the view that HERV-W env should be considered as an autoantigen that can induce autoimmunity in neuropsychiatric diseases, such as multiple sclerosis and schizophrenia. These data might provide an experimental foundation for a HERV-W env peptide vaccine and new insight into the treatment of neuropsychiatric diseases.展开更多
In order to analyze the impact of human capital theory on contemporary Chinese education,this paper first draws a conceptual outline of how this theory was introduced and interpreted to suit the Chinese quest for mode...In order to analyze the impact of human capital theory on contemporary Chinese education,this paper first draws a conceptual outline of how this theory was introduced and interpreted to suit the Chinese quest for modernization.The study then adopts a comparative historical approach to the points of similarity between Neo-Confucian educational ideas and those of British humanism in an earlier transitional period that has some parallels.The aim of this comparison is to connect the ideas of Neo-Confucians and humanist educators to Ronald Dore’s concept of the role of education and his insights on the diploma disease.Within this core framework,this paper exposes the problems that have come from a melding of the examination tradition and the notion of human capital.It suggests that a revival of another aspect of Chinese tradition-education for fostering one’s humanity-may help balance contemporary Chinese education and restore it to health.展开更多
Background: We currently have international and national guidelines regarding the assessment and monitoring of clinical signs and humane endpoints in animals used in teaching and research, which make the performance o...Background: We currently have international and national guidelines regarding the assessment and monitoring of clinical signs and humane endpoints in animals used in teaching and research, which make the performance of these activities mandatory for any experiment and professional working in this area. Assigning the severity of a research experiment is the result of an analysis of records of observations of the animal’s behavior, and clinical signs. The aim of this study was to describe the importance of carrying out a severity assessment associated with clinical and behavioral monitoring of rodents and rabbits during experimentation to maintain the welfare of these animals undergoing scientific research. Methods: The literature search was carried out using the following terms: “Monitoring”;“Humane endpoints”;“Animal welfare”, “Rodents”;“Rabbits”, and as connectors “and”;“or”, in the following databases: PubMed;LILACS/BIREME and SciELO. Results: A total of 987 articles were identified in the databases, and 20 of these studies were included in this review. Conclusions: Humane endpoint protocols and procedure severity tables are of the utmost importance, both from an ethical point and to refine the results of research conducted on laboratory animals. They should be drawn up jointly by the teams responsible for the project and the maintenance of the animals during the research period, and the data obtained should be published so that the scientific community can have access to it, helping to disseminate these practices, as well as helping to draw up new procedures. Monitoring and evaluating the welfare and clinical condition of animals undergoing scientific research procedures is the responsibility of the professors, researchers, veterinarians, and animal facility coordinators. The Ethics Committee on the Use of Animals must monitor all the activities conducted with the animals, by inspecting the experimental procedures and the physical environment of the laboratory animal facility where the animals are housed.展开更多
文摘Most of Nathaniel Hawthorne's masterpieces are created with the theme of morality,and are used to analysis and reveal"good and evil human nature"through the methods of profound symbolism and delicate psychological description. To reemerge the spirit of The Scarlet Letter,Which is considered as Hawthorne's religious view and humanistic feeling,the death of two heroes in this novel should be analyzed in the aspects of religion and human nature,and even in the aspects of the vocabulary,theme and mental world of main characters.
文摘The identity of Eastern and Western cultures should include aspects such as its concepts of societal development and science and technology.Though this is related to issues like history of the culture and regional cultural psychologies,the essence lies in the identity of social values at its core.
文摘Mitochondrial function is fundamental to neuroregeneration,particularly in neurons,where high energy demands are essential for repair and recovery(Patrón and Zinsmaier,2016;Beckervordersandforth et al.,2017;Iwata et al.,2023).Mitochondrial dysfunction,characterized by an imbalance in ATP levels and excessive production of mitochondrial reactive oxygen species,is a key factor that impedes neural regeneration in neurodegenerative diseases and after neuronal injury(Han et al.,2016,2020;Zheng et al.,2016;Zong et al.,2024).
基金supported by the Christiane and Claudia Hempel Foundation for Regenerative Medicineby the James and Elisabeth Cloppenburg, Peek and Cloppenburg Düsseldorf Stiftung(to PK)。
文摘Introduction to human endogenous retrovirus type-W(HERV-W): Genomic inheritance from the past includes retroviral sequences that have been stably incorporated into our genomes and account for up to 8% of human DNA.
文摘Spinal cord injury results in the loss of sensory,motor,and autonomic functions,which almost always produces permanent physical disability.Thus,in the search for more effective treatments than those already applied for years,which are not entirely efficient,researches have been able to demonstrate the potential of biological strategies using biomaterials to tissue manufacturing through bioengineering and stem cell therapy as a neuroregenerative approach,seeking to promote neuronal recovery after spinal cord injury.Each of these strategies has been developed and meticulously evaluated in several animal models with the aim of analyzing the potential of interventions for neuronal repair and,consequently,boosting functional recovery.Although the majority of experimental research has been conducted in rodents,there is increasing recognition of the importance,and need,of evaluating the safety and efficacy of these interventions in non-human primates before moving to clinical trials involving therapies potentially promising in humans.This article is a literature review from databases(PubMed,Science Direct,Elsevier,Scielo,Redalyc,Cochrane,and NCBI)from 10 years ago to date,using keywords(spinal cord injury,cell therapy,non-human primates,humans,and bioengineering in spinal cord injury).From 110 retrieved articles,after two selection rounds based on inclusion and exclusion criteria,21 articles were analyzed.Thus,this review arises from the need to recognize the experimental therapeutic advances applied in non-human primates and even humans,aimed at deepening these strategies and identifying the advantages and influence of the results on extrapolation for clinical applicability in humans.
基金supported by the National Natural Science Foundation of China,No.82301403(to DZ)。
文摘Glial cells play crucial roles in regulating physiological and pathological functions,including sensation,the response to infection and acute injury,and chronic neurodegenerative disorders.Glial cells include astrocytes,microglia,and oligodendrocytes in the central nervous system,and satellite glial cells and Schwann cells in the peripheral nervous system.Despite the greater understanding of glial cell types and functional heterogeneity achieved through single-cell and single-nucleus RNA sequencing in animal models,few studies have investigated the transcriptomic profiles of glial cells in the human spinal cord.Here,we used high-throughput single-nucleus RNA sequencing and spatial transcriptomics to map the cellular and molecular heterogeneity of astrocytes,microglia,and oligodendrocytes in the human spinal cord.To explore the conservation and divergence across species,we compared these findings with those from mice.In the human spinal cord,astrocytes,microglia,and oligodendrocytes were each divided into six distinct transcriptomic subclusters.In the mouse spinal cord,astrocytes,microglia,and oligodendrocytes were divided into five,four,and five distinct transcriptomic subclusters,respectively.The comparative results revealed substantial heterogeneity in all glial cell types between humans and mice.Additionally,we detected sex differences in gene expression in human spinal cord glial cells.Specifically,in all astrocyte subtypes,the levels of NEAT1 and CHI3L1 were higher in males than in females,whereas the levels of CST3 were lower in males than in females.In all microglial subtypes,all differentially expressed genes were located on the sex chromosomes.In addition to sex-specific gene differences,the levels of MT-ND4,MT2A,MT-ATP6,MT-CO3,MT-ND2,MT-ND3,and MT-CO_(2) in all spinal cord oligodendrocyte subtypes were higher in females than in males.Collectively,the present dataset extensively characterizes glial cell heterogeneity and offers a valuable resource for exploring the cellular basis of spinal cordrelated illnesses,including chronic pain,amyotrophic lateral sclerosis,and multiple sclerosis.
基金supported by the Koeln Fortune Program/Faculty of Medicine,University of Cologne,the Alzheimer Forschung Initiative e.V.(grant#22039,to HZ)open-access funding from the DFG/GRC issued to the University of CologneAlzheimer Forschung Initiative e.V.for Open Access Publishing(a publication grant#P2401,to MAAK)。
文摘TAU is a microtubule-associated protein that promotes microtubule assembly and stability in the axon.TAU is missorted and aggregated in an array of diseases known as tauopathies.Microtubules are essential for neuronal function and regulated via a complex set of post-translational modifications,changes of which affect microtubule stability and dynamics,microtubule interaction with other proteins and cellular structures,and mediate recruitment of microtubule-severing enzymes.As impairment of microtubule dynamics causes neuronal dysfunction,we hypothesize cognitive impairment in human disease to be impacted by impairment of microtubule dynamics.We therefore aimed to study the effects of a disease-causing mutation of TAU(P301L)on the levels and localization of microtubule post-translational modifications indicative of microtubule stability and dynamics,to assess whether P301L-TAU causes stability-changing modifications to microtubules.To investigate TAU localization,phosphorylation,and effects on tubulin post-translational modifications,we expressed wild-type or P301L-TAU in human MAPT-KO induced pluripotent stem cell-derived neurons(i Neurons)and studied TAU in neurons in the hippocampus of mice transgenic for human P301L-TAU(p R5 mice).Human neurons expressing the longest TAU isoform(2N4R)with the P301L mutation showed increased TAU phosphorylation at the AT8,but not the p-Ser-262 epitope,and increased polyglutamylation and acetylation of microtubules compared with endogenous TAU-expressing neurons.P301L-TAU showed pronounced somatodendritic presence,but also successful axonal enrichment and a similar axodendritic distribution comparable to exogenously expressed 2N4R-wildtype-TAU.P301L-TAU-expressing hippocampal neurons in transgenic mice showed prominent missorting and tauopathy-typical AT8-phosphorylation of TAU and increased polyglutamylation,but reduced acetylation,of microtubules compared with non-transgenic littermates.In sum,P301L-TAU results in changes in microtubule PTMs,suggestive of impairment of microtubule stability.This is accompanied by missorting and aggregation of TAU in mice but not in i Neurons.Microtubule PTMs/impairment may be of key importance in tauopathies.
文摘In this article,we comment on an article published in a recent issue of the World Journal of Gastroenterology.We specifically focus on the roles of human leukocyte antigen(HLA)and donor-specific antibodies(DSAs)in pediatric liver transpl-antation(LT),as well as the relationship between immune rejection after LT and DSA.Currently,LT remains the standard of care for pediatric patients with end-stage liver disease or severe acute liver failure.However,acute and chronic re-jection continues to be a significant cause of graft dysfunction and loss.HLA mismatch significantly reduces graft survival and increases the risk of acute rejection.Among them,D→R one-way mismatch at three loci was significantly related to graft-versus-host disease incidence after LT.The adverse impact of HLA-DSAs on LT recipients is already established.Therefore,the evaluation of HLA and DSA is crucial in pediatric LT.
基金supported by 1RO1EY032959-01 and RO1 supplement from NIH,Schuellein Chair Endowment Fund and STEM Catalyst Grant from the University of Dayton(to AS).
文摘Acetyltransferases,required to transfer an acetyl group on protein are highly conserved proteins that play a crucial role in development and disease.Protein acetylation is a common post-translational modification pivotal to basic cellular processes.Close to 80%-90%of proteins are acetylated during translation,which is an irreversible process that affects protein structure,function,life,and localization.In this review,we have discussed the various N-acetyltransferases present in humans,their function,and how they might play a role in diseases.Furthermore,we have focused on N-acetyltransferase 9 and its role in microtubule stability.We have shed light on how N-acetyltransferase 9 and acetylation of proteins can potentially play a role in neurodegenerative diseases.We have specifically discussed the N-acetyltransferase 9-acetylation independent function and regulation of c-Jun N-terminal kinase signaling and microtubule stability during development and neurodegeneration.
基金Supported by the National Research Foundation of Korea,No.2020R1A2C1100891Soonchunhyang University Research Fund,No.2024-05-014.
文摘BACKGROUND The high prevalence of human papillomavirus(HPV)infection in oropharyngeal squamous cell carcinoma(SCC)is well established,and p16 expression is a strong predictor.HPV-related tumors exhibit unique mechanisms that target p16 and p53 proteins.However,research on HPV prevalence and the combined predictive value of p16 and p53 expression in head and neck cutaneous SCC(HNCSCC),particularly in Asian populations,remains limited.This retrospective study surveyed 62 patients with HNSCC(2011-2020),excluding those with facial warts or other skin cancer.AIM To explore the prevalence of HPV and the predictive value of p16 and p53 expression in HNCSCC in Asian populations.METHODS All patients underwent wide excision and biopsy.Immunohistochemical staining for HPV,p16,and p53 yielded positive and negative results.The relevance of each marker was investigated by categorizing the tumor locations into high-risk and middle-risk zones based on recurrence frequency.RESULTS Of the 62 patients,20(32.26%)were male,with an average age of 82.27 years(range 26-103 years).High-risk included 19 cases(30.65%),with the eyelid and lip being the most common sites(five cases,8.06%).Middle-risk included 43 cases(69.35%),with the cheek being the most common(29 cases,46.77%).The p16 expression was detected in 24 patients(38.71%),p53 expression in 42 patients(72.58%),and HPV in five patients(8.06%).No significant association was found between p16 expression and the presence of HPV(P>0.99),with a positive predictive value of 8.33%.CONCLUSION This study revealed that p16,a surrogate HPV marker in oropharyngeal SCC,is not reliable in HNCSCC,providing valuable insights for further research in Asian populations.
基金Supported by the Scientific Research Development Plan Project or the Scientific Research Foundation for Advanced Talents,Affiliated Hospital of North Sichuan Medical College,No.2023MPZK017,No.2023ZD001,No.2023-2ZD002,and No.2023GC009Science and Technology Support Program of Nanchong,No.22SXQT0001+1 种基金Youth Medical Innovation Research Project,or Medical Research Project of Sichuan Province,No.Q23047 and No.S23020Development of a Scientific Research Plan for the Doctoral Scientific Research Foundation of the North Sichuan Medical College,No.CBY22-ZDA03.
文摘BACKGROUND Esophageal squamous cell carcinoma(ESCC)is a malignant tumor with high morbidity and mortality,and easy to develop resistance to chemotherapeutic agents.Telomeres are DNA-protein complexes located at the termini of chro-mosomes in eukaryotic cells,which are unreplaceable in maintaining the stability and integrity of genome.Telomerase,an RNA-dependent DNA polymerase,play vital role in telomere length maintain,targeting telomerase is a promising therapeutic strategy for cancer.KYSE150 and KYSE410 cells were cultured and exposed to various concentrations of BIBR1532.Cell viability was assessed at 48 hours and 72 hours to determine the IC50 values.The effects of BIBR1532 on ESCC cell proliferation,migration,and cellular senescence were evaluated using the cell counting kit-8 assay,plate colony formation assay,scratch assay,transwell assay,andβ-galactosidase staining,respectively.Western blotting was performed to detect the expression of RESULTS The IC50 values for KYSE150 and KYSE410 cells after 48 hours of BIBR1532 exposure were 48.53μM and 39.59μM,respectively.These values decreased to 37.22μM and 22.71μM,respectively,following a longer exposure of 72 hours.BIBR1532 exhibited dose-dependent effects on KYSE150 and KYSE410 cells,including decreased hTERT expression,inhibition of proliferation and metastasis,and induction of cellular senescence.Mechanistically,BIBR1532 upregulated the expression of the DDR protein,γ-H2AX,and activated the ataxia telangiectasia and Rad3-related protein(ATR)/check point kinase 1(CHK-1)and ataxia-telangiectasia mutated gene(ATM)/CHK2 pathways.BIBR1532 downregulated the expression of telomere-binding proteins,including telomeric-repeat binding factor 1(TRF1),TRF2,protection of telomeres 1,and TIN2-interacting protein 1.In a nude mouse xenograft model,BIBR1532 significantly suppressed tumor growth,reduced hTERT expression,and increasedγ-H2AX protein levels.Hematoxylin and eosin staining of various organs,including the heart,liver,spleen,lungs,and kidneys,revealed no apparent adverse effects.CONCLUSION BIBR1532 exerts anti-cancer effects on ESCC by inducing DDR through the ATR/CHK1 and ATM/CHK2 pathways and downregulating the expression of telomere-binding proteins.
文摘Human immunodeficiency virus(HIV)modifies CD4-positive cells,resulting in immunodeficiency and a wide range of gastrointestinal(GI)manifestations.The burden of HIV-related GI illnesses has significantly evolved with the widespread use of antiretroviral therapy(ART).While ART has effectively reduced the occurrence of opportunistic infections,it has led to an increase in therapy-related GI illnesses.Common esophageal conditions in HIV patients include gastroesophageal reflux disease,idiopathic esophageal ulcers,herpes simplex virus,cytomegalovirus(CMV),and candidal esophagitis.Kaposi’s sarcoma,a hallmark of acquired immunodeficiency syndrome,may affect the entire GI system.Gastritis and peptic ulcer disease are also frequently seen in patients with HIV.Diarrhea,often linked to both opportunistic infections and ART,requires careful evaluation.Bloody diarrhea,often a sign of colitis caused by bacterial infections such as Shigella or Clostridium difficile,is prevalent.Small bowel lymphoma,although rare,is increasing in prevalence.Anorectal disorders,including proctitis,fissures,and anal squamous cell carcinoma,are particularly relevant in homosexual men,underlining the importance of timely diagnosis.This review comprehensively explores the epidemiology,pathogenesis,and treatment considerations for the various GI disorders associated with HIV,highlighting the importance of accurate diagnosis and effective treatment to improve outcomes for HIV-infected patients.
文摘BACKGROUND Transfusion transmissible infections(TTIs)are illnesses spread through contaminated blood or blood products.In India,screening for TTIs such as hepatitis B virus(HBV),hepatitis C virus(HCV),human immunodeficiency virus(HIV)-I/II,malaria,and syphilis is mandatory before blood transfusions.Worldwide,HCV,HBV,and HIV are the leading viruses causing mortality,affecting millions of people globally,including those with co-infections of HIV/HCV and HIV/HBV.Studies highlight the impact of TTIs on life expectancy and health risks,such as liver cirrhosis,cancer,and other diseases in individuals with chronic HBV.Globally,millions of blood donations take place annually,emphasizing the importance of maintaining blood safety.AIM To study the prevalence of TTIs,viz.,HBV,HCV,HIV I/II,syphilis,and malaria parasite(MP),among different blood donor groups.METHODS The study assessed the prevalence of TTIs among different blood donor groups in Delhi,India.Groups included total donors,in-house donors,total camp donors,institutional camp donors,and community camp donors.Tests for HIV,HBV,and HCV were done using enzyme-linked immunosorbent assay,while syphilis was tested with rapid plasma reagins and MP rapid card methods.The prevalence of HBV,HCV,HIV,and syphilis,expressed as percentages.Differences in infection rates between the groups were analyzed usingχ²tests and P-values(less than 0.05).RESULTS The study evaluated TTIs among 42158 blood donors in Delhi.The overall cumulative frequency of TTIs in total blood donors was 2.071%,and the frequencies of HBV,HCV,HIV-I/II,venereal disease research laboratory,and MP were 1.048%,0.425%,0.221%,0.377%,and 0.0024%,respectively.In-house donors,representing 37656 donors,had the highest transfusion transmissible infection(TTI)prevalence at 2.167%.Among total camp donors(4502 donors),TTIs were identified in 1.266%of donors,while community camp donors(2439 donors)exhibited a prevalence of 1.558%.Institutional camp donors(2063 donors)had the lowest TTI prevalence at 0.921%.Statistical analysis revealed significant differences in overall TTI prevalence,with total and in-house donors exhibiting higher rates compared to camp donors.CONCLUSION Ongoing monitoring and effective screening programs are essential for minimizing TTIs.Customizing blood safety measures for different donor groups and studying socio-economic-health factors is essential to improving blood safety.
文摘Confucius emphasises the importance of humaneness (ren 仁)and rites (li 禮).Socrates, on the other hand, is often interpreted as a person who places far more importance on rational thinking, even to the exclusion of natural human feelings, especially on the ground of his attitude towards the sorrow of his wife and friends on his last day as described in Plato's Phaedo. Through clarifying two long-time riddles in this dialogue-namely,"What did Socrates mean by his last words, requesting Crito to offer a cock to Asclepius?", and "Was Plato really absent from the prison on Socrates5 last day, due to illness, as is mentioned by Phaedo?"-this paper argues that Socrates kept in mind the best interest of his wife and friends even at the moment of his death, and that his humane attitude is expressed in his last words, which were not only an expression of gratitude for Plato's recovery from a critical illness but also an exhortation to his friends to continue their care of the soul.
文摘The prevailing narrative instructs us that humane treatment of captured enemy fighters is down to white knights from the western parts of the European continent with their codes of chivalry, or alternatively, the Swiss businessman Henri Dunant. This contribution challenges that narrative for overlooking, or being ignorant of, the way that societies around the world have approached the matter of the captured enemy fighter. Traces of some of the critical principles about humane treatment that we see in our present law can actually be found in much older societies from outside of Europe. A more accurate and representative way of understanding humanitarianism in the treatment of captured enemy fighters can and must be crafted, with the prevailing Euro-centric account balanced with practices, cultures and faiths from elsewhere. The quest to achieve more humane treatment in armed conflict is first and foremost a battle of the intellect. Narratives and conceptualisations that are more inclusive, recognising and appreciating of the ways of the rest of the world are likely to be more effective in communicating humanitarian ideals. This work adopts a new method of approaching the richness and diversity of the treatment of captured enemy fighters over time and space. This new framework of analysis uses six cross-cutting themes to facilitate a broader international and comparative perspective, and develop a more sophisticated level of understanding. The first theme is how older and indigenous societies approached the matter of captured enemy fighters. The second focuses on religions of the world, and what they teach or require. The third section examines the matter of martial practices and codes of ethics for combatants in certain societies. The fourth category engages with colonisation and decolonisation, and regulation (or non-regulation) of the treatment of captives of war. Fifth is the issue of modernisation and the impact it has had on armed forces and fighters, including on the treatment of captives. The final issue is the shift towards formalised agreements, beginning with the first bilateral agreements and then the multilateral codification exercise that began in the mid-19th century and continues to this day. This framework for analysis leads into a final chapter, presenting a fresh and holistic view on the evolution of prisoner of war protections in the international order. It provides a different way of looking at International Humanitarian Law, starting with this effort at a global understanding of the treatment of captured enemy fighters.
基金supported by grants from the National Natural Sciences Foundation of China(no.31470264,no.81271820,no.30870789 and no.30300117)the Key Program of the Natural Science Foundation of Hubei Province of China(no.2014CFA078)+1 种基金the Stanley Foundation from the Stanley Medical Research Institute(SMRI),USA(no.06R-1366),for Dr.F Zhuthe Scientific Innovation Team Project of Hubei Province of China(no.2015CFA009)
文摘Human endogenous retrovirus W family(HERV-W) envelope(env) has been reported to be related to several human diseases, including autoimmune disorders, and it could activate innate immunity.However, there are no reports investigating whether human leukemia antigen(HLA)-A~*0201^+restriction is involved in the immune response caused by HERV-W env in neuropsychiatric diseases. In the present study, HERV-W env-derived epitopes presented by HLA-A~*0201 are described with the potential for use in adoptive immunotherapy. Five peptides displaying HLAA~*0201-binding motifs were predicted using SYFEPITHI and BIMAS, and synthesized. A CCK-8 assay showed peptides W, Q and T promoted lymphocyte proliferation. Stimulation of peripheral blood mononuclear cells from HLA-A~*0201^+ donors with each of these peptides induced peptidespecific CD8^+ T cells. High numbers of IFN-γ-secreting T cells were also detectable after several weekly stimulations with W, Q and T. Besides lysis of HERV-W env-loaded target cells, specific apoptosis was also observed. These data demonstrate that human T cells can be sensitized toward HERV-W env peptides(W, Q and T) and, moreover, pose a high killing potential toward HERV-W env-expressing U251 cells. In conclusion, peptides W Q and T, which are HERV-W env antigenic epitopes, have both antigenicity and immunogenicity, and can cause strong T cell immune responses. Our data strengthen the view that HERV-W env should be considered as an autoantigen that can induce autoimmunity in neuropsychiatric diseases, such as multiple sclerosis and schizophrenia. These data might provide an experimental foundation for a HERV-W env peptide vaccine and new insight into the treatment of neuropsychiatric diseases.
基金Funding for this research was provided by an Internal Research Grant of the Faculty of Humanities and Social Sciences,Victoria University of Wellington.
文摘In order to analyze the impact of human capital theory on contemporary Chinese education,this paper first draws a conceptual outline of how this theory was introduced and interpreted to suit the Chinese quest for modernization.The study then adopts a comparative historical approach to the points of similarity between Neo-Confucian educational ideas and those of British humanism in an earlier transitional period that has some parallels.The aim of this comparison is to connect the ideas of Neo-Confucians and humanist educators to Ronald Dore’s concept of the role of education and his insights on the diploma disease.Within this core framework,this paper exposes the problems that have come from a melding of the examination tradition and the notion of human capital.It suggests that a revival of another aspect of Chinese tradition-education for fostering one’s humanity-may help balance contemporary Chinese education and restore it to health.
文摘Background: We currently have international and national guidelines regarding the assessment and monitoring of clinical signs and humane endpoints in animals used in teaching and research, which make the performance of these activities mandatory for any experiment and professional working in this area. Assigning the severity of a research experiment is the result of an analysis of records of observations of the animal’s behavior, and clinical signs. The aim of this study was to describe the importance of carrying out a severity assessment associated with clinical and behavioral monitoring of rodents and rabbits during experimentation to maintain the welfare of these animals undergoing scientific research. Methods: The literature search was carried out using the following terms: “Monitoring”;“Humane endpoints”;“Animal welfare”, “Rodents”;“Rabbits”, and as connectors “and”;“or”, in the following databases: PubMed;LILACS/BIREME and SciELO. Results: A total of 987 articles were identified in the databases, and 20 of these studies were included in this review. Conclusions: Humane endpoint protocols and procedure severity tables are of the utmost importance, both from an ethical point and to refine the results of research conducted on laboratory animals. They should be drawn up jointly by the teams responsible for the project and the maintenance of the animals during the research period, and the data obtained should be published so that the scientific community can have access to it, helping to disseminate these practices, as well as helping to draw up new procedures. Monitoring and evaluating the welfare and clinical condition of animals undergoing scientific research procedures is the responsibility of the professors, researchers, veterinarians, and animal facility coordinators. The Ethics Committee on the Use of Animals must monitor all the activities conducted with the animals, by inspecting the experimental procedures and the physical environment of the laboratory animal facility where the animals are housed.