In this letter,we explore into the potential role of the recent study by Zeng et al.Rectal neuroendocrine tumours(rNETs)are rare,originate from peptidergic neurons and neuroendocrine cells,and express corresponding ma...In this letter,we explore into the potential role of the recent study by Zeng et al.Rectal neuroendocrine tumours(rNETs)are rare,originate from peptidergic neurons and neuroendocrine cells,and express corresponding markers.Although most rNETs patients have a favourable prognosis,the median survival period significantly decreases when high-risk factors,such as larger tumours,poorer differentiation,and lymph node metastasis exist,are present.Clinical prediction models play a vital role in guiding diagnosis and prognosis in health care,but their complex calculation formulae limit clinical use.Moreover,the prognostic models that have been developed for rNETs to date still have several limitations,such as insufficient sample sizes and the lack of external validation.A high-quality prognostic model for rNETs would guide treatment and follow-up,enabling the precise formulation of individual patient treatment and follow-up plans.The future development of models for rNETs should involve closer collab-oration with statistical experts,which would allow the construction of clinical prediction models to be standardized and robust,accurate,and highly general-izable prediction models to be created,ultimately achieving the goal of precision medicine.展开更多
In this editorial,we provide insights into the publication by Niu et al featured in the latest edition of the World Journal of Gastroenterology.Specifically,our focus was on exploring the potential of traditional Chin...In this editorial,we provide insights into the publication by Niu et al featured in the latest edition of the World Journal of Gastroenterology.Specifically,our focus was on exploring the potential of traditional Chinese medicine(TCM)in treating nonalcoholic fatty liver disease(NAFLD)induced by a high-fat diet through various mechanisms.NAFLD is a common liver condition,affecting approximately 25%of the world's population.It is closely linked to metabolic syndrome,insulin resistance,excessive body weight,and irregular lipid processing,leading to fat accumulation in the liver,as well as oxidative stress and inflammation.While maintaining a healthy diet and active lifestyle are essential for managing NAFLD,treatment options are limited due to undefined pathogenesis and a lack of specific medications.TCM,rooted in traditional Chinese practices,presents a promising alternative through its"syndrome differentiation and treatment"principles,enhancing liver lipid metabolism,reducing inflammation,and addressing fibrosis.Certain herbs,such as Poria cocos,Puaria lobata,and Salvia miltiorrhiza,have shown significant efficacy in reducing fat deposition and improving liver function.Due to systematic research and analysis of mechanisms,TCM is anticipated to yield new approaches to prevent and treat NAFLD,increasing its clinical application.展开更多
As a research hotspot in the field of molecular biology,N6-methyladenosine(m6A)modification has made progress in the treatment of colorectal cancer(CRC),leukemia and other cancers.Numerous studies have demonstrated th...As a research hotspot in the field of molecular biology,N6-methyladenosine(m6A)modification has made progress in the treatment of colorectal cancer(CRC),leukemia and other cancers.Numerous studies have demonstrated that the tumour microenvironment(TME)regulates the level of m6A modification in the host and activates a series of complex epigenetic signalling pathways through interactions with CRC cells,thus affecting the progression and prognosis of CRC.However,with the diversity in the composition of TME factors,this action is reci-procal and complex.Encouragingly,some studies have experimentally revealed that the intestinal flora can alter CRC cell proliferation by directly acting on m6A and thereby altering CRC cell proliferation.This review summarizes the data,supporting the idea that the intestinal flora can influence host m6A levels through pathways such as methyl donor metabolism and thus affect the progression of CRC.We also review the role of m6A modification in the diagnosis,treatment,and prognostic assessment of CRC and discuss the current status,limitations,and potential clinical value of m6A modification in this field.We propose that additional in-depth research on m6A alterations in CRC patients and their TME-related targeted therapeutic issues will lead to better therapeutic outcomes for CRC patients.展开更多
In this editorial,we delve into the article and offer valuable insights into a crucial aspect of gastric cancer aetiology.Gastric cancer is a malignancy emanating from the epithelial lining of the gastric mucosa and o...In this editorial,we delve into the article and offer valuable insights into a crucial aspect of gastric cancer aetiology.Gastric cancer is a malignancy emanating from the epithelial lining of the gastric mucosa and one of the most prevalent forms of cancer worldwide.The development of gastric cancer is associated with multiple risk factors,including Helicobacter pylori infection,advanced age,a diet rich in salt,and suboptimal eating patterns.Despite notable reductions in morbidity and mortality rates,gastric cancer remains a formidable public health concern,impacting patients’lives.Advanced glycation end products(AGEs)are complex compounds arising from nonenzymatic reactions within living organisms,the accumulation of which is implicated in cellular and tissue damage;thus,the levels are AGEs are correlated with the risk of diverse diseases.The investigation of AGEs is of paramount importance for the treatment of gastric cancer and can provide pivotal insights into disease pathogenesis and preventive and therapeutic strategies.The reduction of AGEs levels and suppression of their accumulation are promising avenues for mitigating the risk of gastric cancer.This approach underscores the need for further research aimed at identifying innovative interventions that can effectively lower the incidence and mortality rates of this malignancy.展开更多
AIM:To determine the expression of the catalytic subunit of DNA-dependent protein kinase(DNA-PKcs)and the Ku70/Ku80 heterodimer(Ku 70/80)in gastric carcinoma.METHODS:Gastric biopsies were obtained from 146gastric carc...AIM:To determine the expression of the catalytic subunit of DNA-dependent protein kinase(DNA-PKcs)and the Ku70/Ku80 heterodimer(Ku 70/80)in gastric carcinoma.METHODS:Gastric biopsies were obtained from 146gastric carcinoma patients[Helicobacter pylori(H.pylori)-negative:89 and H.pylori-positive:57]and 34from normal subjects(H.pylori-negative:16 and H.pylori-positive:18)via surgery and endoscopic detection from April 2011 to August 2012 at the First Affiliated Hospital of Nanchang University.Pathological diagnosis and classification were made according to the criteria of the World Health Organization and the updated Sydney system.An‘‘in-house’’rapid urease test and modified Giemsa staining were employed to detect H.pylori infection.The expression of DNA-PKcs and the Ku 70/80protein was detected by immunohistochemistry.RESULTS:Overall,the positive rates of both DNA-PKcs and Ku 70/80 were significantly increased in gastric cancer(χ2=133.04,P<0.001 for DNA-PKcs andχ2=13.06,P<0.01 for Ku)compared with normal gastric mucosa.There was hardly any detectable expression of DNA-PKcs in normal gastric mucosa,and the positive rate of DNA-PKcs protein expression in patients with a normal gastric mucosa was 0%(0/34),whereas the rate in gastric cancer(GC)was 93.8%(137/146).The difference between the two groups was statistically significant.Additionally,the positive rate of Ku 70/80 was79.4%(27/34)in normal gastric mucosa and 96.6%(141/146)in gastric cancer.The DNA-PKcs protein level was significantly increased in gastric cancer(MannWhitney U=39.00,P<0.001),compared with normal gastric mucosa.In addition,there was a significant difference in the expression of Ku 70/80(Mann-Whitney U=1117.00,P<0.001)between gastric cancer and normal gastric mucosa.There was also a significant difference in Ku70/80 protein expression between GC patients with and without H.pylori infection(P<0.05).Spearman analysis showed a negative correlation between tumor differentiation and DNA-PKcs expression(r=-0.447,P<0.05).Moreover,Ku70/80 expression was negatively correlated with both clinical stage(r=-0.189,P<0.05)and H.pylori colonization(r=-0.168,P<0.05).CONCLUSION:Overall,this research demonstrated that enhanced DNA-PKcs and Ku 70/80 expression may be closely associated with gastric carcinoma.展开更多
AIM: To assess the effect of Helicobacter pylori(H. pylori) infection on metabolic parameters in Mongolian gerbils.METHODS: A total of 40 male, 5- to 8-wk-old, specific-pathogen-free Mongolian gerbils(30-50 g) were ra...AIM: To assess the effect of Helicobacter pylori(H. pylori) infection on metabolic parameters in Mongolian gerbils.METHODS: A total of 40 male, 5- to 8-wk-old, specific-pathogen-free Mongolian gerbils(30-50 g) were randomly allocated into two groups: a control group(n = 20) and an H. pylori group(n = 20). After a two-week acclimation period, the control group was administered Brucella broth and the H. pylori group was challenged intra-gastrically five times every other day with approximately 109/CFU H. pylori ATCC43504(Cag A+, Vac A+). Each group was then divided into two subgroups, which were sacrificed at either 6 or 12 mo. The control and H. pylori subgroups each contained 10 Mongolian gerbils. Body weight, abdominal circumference, and body length were measured, and body mass index(BMI) and Lee's index were calculated. Biochemical assays were used to detect serum indexes, including glucose, glycated hemoglobin(GHb), glycated hemoglobin A1c(Hb A1c), triacylglycerol, and total cholesterol, using an automatic biochemistry analyzer. Inflammatory cytokines, including interleukin(IL)-1β, IL-2, IL-4,IL-10, IL-12, tumor necrosis factor-α(TNF-α) and interferon(IFN)-g, were assayed using ELISA. The expression of insulin and insulin-like growth factor 1(IGF-1) was detected by immunohistochemistry, and islet apoptosis was measured using the terminal deoxynucleotidyl transferase-mediated d UTP nick end labeling(TUNEL) assay.RESULTS: At each time point, body weight, abdominal circumference, BMI, and Lee's index were increased after H. pylori infection. However, these differences were not significant. H. pylori infection significantly increased the GHb(5.45 ± 0.53 vs 4.98 ± 0.22, P < 0.05) and Hb A1c(4.91 ± 0.61 vs 4.61 ± 0.15, P < 0.05) levels at 12 mo. We observed no significant differences in serum biochemical indexes, including fasting blood glucose, triacylglycerol and total cholesterol, at 6 or 12 mo after infection. H. pylori infection significantly increased the expression of IGF-1(P < 0.05). Insulin levels from the pancreas and the apoptotic rate of islet β-cells remained unchanged. Also, we observed no significant differences among cytokines levels, including IL-1β, IL-2, IL-4, IL-10, IL-12, TNF-α and IFN-g. IL-4 was the only exception, which increased at 6(44.36 ± 25.17 vs 17.38 ± 3.47, P < 0.05) and 12 mo(33.41 ± 10.00 vs 18.91 ± 5.31, P < 0.05) after H. pylori infection.CONCLUSION: Long-term H. pylori infection is significantly associated with high levels of Hb A1 c in Mongolian gerbils, indicating a potential role of H. pylori infection in glucose dysregulation.展开更多
BACKGROUND Mesonephric adenocarcinoma(MNAC)is an extremely rare malignancy in the female genital tract.Only a few cases have been reported in the literature,and most of them occurred in the cervix,with extremely rare ...BACKGROUND Mesonephric adenocarcinoma(MNAC)is an extremely rare malignancy in the female genital tract.Only a few cases have been reported in the literature,and most of them occurred in the cervix,with extremely rare cases in the uterine body and ovary.MNAC has never been reported to arise in the fallopian tube.CASE SUMMARY A 45-year-old woman was referred to our institution with a history of abdominal pain.Ultrasound revealed a cystic and solid mass in left adnexal region.The patient underwent complete staging surgery when intraoperative pathological examination demonstrated that the mass was malignant.The final histological and immunohistochemical results confirmed the diagnosis of MNAC originating from the fallopian tube.Then she received four cycles of combination chemotherapy with carboplatin plus paclitaxel.The tumor recurred with hepatic metastases 4 mo after initial surgery,and second resection of the tumors in the liver plus partial hepatectomy was performed.She was supplemented with five courses of a new combination chemotherapy with gemcitabine plus carboplatin,and there was no evidence of recurrence within the 22-mo follow-up period after the second surgery.CONCLUSION MNAC originating from the fallopian tube is an extremely rare and high malignancy with a poor prognosis.It can be very aggressive,even at early stage.Little is known about the clinical characteristics,pathological diagnosis,prognosis,and optimal management strategy of MNAC originating from the fallopian tube.Herein we report the first case of primary MNAC deriving from the fallopian tube.展开更多
Alongside the rapid development of flexible and wearable electronics,the search for reliable,safe,and high-energy rechargeable flexible batteries(FBs)has become a research hotspot in recent years.Although there are so...Alongside the rapid development of flexible and wearable electronics,the search for reliable,safe,and high-energy rechargeable flexible batteries(FBs)has become a research hotspot in recent years.Although there are some prototype FBs exhibited by the industry and a rapidly increasing number of publications reported by academia,most demonstrations are shown on a laboratory scale,and it is still difficult to find real implementation of the technology in the market.This perspective aims to discuss and analyze the key metrics,including energy density,flexibility,and safety,that are critical to pushing FBs to a commercially viable level,with a special focus on the lithium batteries and zinc batteries most reported in the literature.We first compare the figure of merit of FBs(fbFOM)of existing lithium-based and zinc-based FBs with the requirement for market applications.We then analyze the most desired cell configurations toward high flexibility,followed by systematic discussions on features and materials selection toward high energy density FBs.Third,we discuss strategies to enhance battery safety.An outlook of the future developments needed to address the gaps between the state-of-the-art demonstrations and real applications is provided at the end of this article.展开更多
The shale gas reservoirs are composed of porous media of different length scales such as nanopores,micropores,natural fractures and hydraulic fractures,which lead to high heterogeneity.Gas flow from pores to fractures...The shale gas reservoirs are composed of porous media of different length scales such as nanopores,micropores,natural fractures and hydraulic fractures,which lead to high heterogeneity.Gas flow from pores to fractures is under different flow regimes and in the control of various flow mechanisms.The gas slippage would have significant effects on gas flow in shale.To obtain the effect of slippage on gas flow in matrix and fractures,contrast experiments were run by using cores with penetration fractures and no fractures from Marine Shale in Southern China under constant confining pressure.The results showed that slippage effect dominates and increases the gas permeability of cores without fractures.To cores with penetration fractures,slippage effect is associated with the closure degree of fractures.Slippage dominates when fractures close under low pore pressure.Slippage weakens due to the fractures opening under high pore pressure.Fracture opening reduces the seepage resistance and slippage effect.The Forchheimer effect occurs and leads to a permeability reduction.展开更多
基金Supported by the National Natural Science Foundation of China,No.82100599 and No.81960112the Jiangxi Provincial Department of Science and Technology,No.20242BAB26122+1 种基金the Science and Technology Plan of Jiangxi Provincial Administration of Traditional Chinese Medicine,No.2023Z021the Project of Jiangxi Provincial Academic and Technical Leaders Training Program for Major Disciplines,No.20243BCE51001.
文摘In this letter,we explore into the potential role of the recent study by Zeng et al.Rectal neuroendocrine tumours(rNETs)are rare,originate from peptidergic neurons and neuroendocrine cells,and express corresponding markers.Although most rNETs patients have a favourable prognosis,the median survival period significantly decreases when high-risk factors,such as larger tumours,poorer differentiation,and lymph node metastasis exist,are present.Clinical prediction models play a vital role in guiding diagnosis and prognosis in health care,but their complex calculation formulae limit clinical use.Moreover,the prognostic models that have been developed for rNETs to date still have several limitations,such as insufficient sample sizes and the lack of external validation.A high-quality prognostic model for rNETs would guide treatment and follow-up,enabling the precise formulation of individual patient treatment and follow-up plans.The future development of models for rNETs should involve closer collab-oration with statistical experts,which would allow the construction of clinical prediction models to be standardized and robust,accurate,and highly general-izable prediction models to be created,ultimately achieving the goal of precision medicine.
基金Supported by National Natural Science Foundation of China,No.82100599 and No.81960112Jiangxi Provincial Department of Science and Technology,No.20242BAB26122+1 种基金Science and Technology Plan of Jiangxi Provincial Administration of Traditional Chinese Medicine,No.2023Z021Project of Jiangxi Provincial Academic and Technical Leaders Training Program for Major Disciplines,No.20243BCE51001.
文摘In this editorial,we provide insights into the publication by Niu et al featured in the latest edition of the World Journal of Gastroenterology.Specifically,our focus was on exploring the potential of traditional Chinese medicine(TCM)in treating nonalcoholic fatty liver disease(NAFLD)induced by a high-fat diet through various mechanisms.NAFLD is a common liver condition,affecting approximately 25%of the world's population.It is closely linked to metabolic syndrome,insulin resistance,excessive body weight,and irregular lipid processing,leading to fat accumulation in the liver,as well as oxidative stress and inflammation.While maintaining a healthy diet and active lifestyle are essential for managing NAFLD,treatment options are limited due to undefined pathogenesis and a lack of specific medications.TCM,rooted in traditional Chinese practices,presents a promising alternative through its"syndrome differentiation and treatment"principles,enhancing liver lipid metabolism,reducing inflammation,and addressing fibrosis.Certain herbs,such as Poria cocos,Puaria lobata,and Salvia miltiorrhiza,have shown significant efficacy in reducing fat deposition and improving liver function.Due to systematic research and analysis of mechanisms,TCM is anticipated to yield new approaches to prevent and treat NAFLD,increasing its clinical application.
基金Supported by the National Natural Science Foundation of China,No.82100599 and No.81960112the Jiangxi Provincial Department of Scientific introductions,No.20212ACB216003 and No.20242BAB26122+1 种基金the Science and Technology Plan of Jiangxi Provincial Administration of Traditional Chinese Medicine,No.2023Z021the Young Talents Project of Jiangxi Provincial Academic and Technical Leaders Training Program for Major Disciplines,No.20204BCJ23022.
文摘As a research hotspot in the field of molecular biology,N6-methyladenosine(m6A)modification has made progress in the treatment of colorectal cancer(CRC),leukemia and other cancers.Numerous studies have demonstrated that the tumour microenvironment(TME)regulates the level of m6A modification in the host and activates a series of complex epigenetic signalling pathways through interactions with CRC cells,thus affecting the progression and prognosis of CRC.However,with the diversity in the composition of TME factors,this action is reci-procal and complex.Encouragingly,some studies have experimentally revealed that the intestinal flora can alter CRC cell proliferation by directly acting on m6A and thereby altering CRC cell proliferation.This review summarizes the data,supporting the idea that the intestinal flora can influence host m6A levels through pathways such as methyl donor metabolism and thus affect the progression of CRC.We also review the role of m6A modification in the diagnosis,treatment,and prognostic assessment of CRC and discuss the current status,limitations,and potential clinical value of m6A modification in this field.We propose that additional in-depth research on m6A alterations in CRC patients and their TME-related targeted therapeutic issues will lead to better therapeutic outcomes for CRC patients.
基金Supported by The National Natural Science Foundation of China,No.82100599 and No.81960112The Jiangxi Provincial Department of Science and Technology,No.20212ACB216003+1 种基金The Science and Technology Plan of Jiangxi Provincial Administration of Traditional Chinese Medicine,No.2023Z021The Young Talents Project of Jiangxi Provincial Academic and Technical Leaders Training Program for Major Disciplines,No.20204BCJ23022.
文摘In this editorial,we delve into the article and offer valuable insights into a crucial aspect of gastric cancer aetiology.Gastric cancer is a malignancy emanating from the epithelial lining of the gastric mucosa and one of the most prevalent forms of cancer worldwide.The development of gastric cancer is associated with multiple risk factors,including Helicobacter pylori infection,advanced age,a diet rich in salt,and suboptimal eating patterns.Despite notable reductions in morbidity and mortality rates,gastric cancer remains a formidable public health concern,impacting patients’lives.Advanced glycation end products(AGEs)are complex compounds arising from nonenzymatic reactions within living organisms,the accumulation of which is implicated in cellular and tissue damage;thus,the levels are AGEs are correlated with the risk of diverse diseases.The investigation of AGEs is of paramount importance for the treatment of gastric cancer and can provide pivotal insights into disease pathogenesis and preventive and therapeutic strategies.The reduction of AGEs levels and suppression of their accumulation are promising avenues for mitigating the risk of gastric cancer.This approach underscores the need for further research aimed at identifying innovative interventions that can effectively lower the incidence and mortality rates of this malignancy.
基金Supported by The National natural science foundation of China,No.81270479
文摘AIM:To determine the expression of the catalytic subunit of DNA-dependent protein kinase(DNA-PKcs)and the Ku70/Ku80 heterodimer(Ku 70/80)in gastric carcinoma.METHODS:Gastric biopsies were obtained from 146gastric carcinoma patients[Helicobacter pylori(H.pylori)-negative:89 and H.pylori-positive:57]and 34from normal subjects(H.pylori-negative:16 and H.pylori-positive:18)via surgery and endoscopic detection from April 2011 to August 2012 at the First Affiliated Hospital of Nanchang University.Pathological diagnosis and classification were made according to the criteria of the World Health Organization and the updated Sydney system.An‘‘in-house’’rapid urease test and modified Giemsa staining were employed to detect H.pylori infection.The expression of DNA-PKcs and the Ku 70/80protein was detected by immunohistochemistry.RESULTS:Overall,the positive rates of both DNA-PKcs and Ku 70/80 were significantly increased in gastric cancer(χ2=133.04,P<0.001 for DNA-PKcs andχ2=13.06,P<0.01 for Ku)compared with normal gastric mucosa.There was hardly any detectable expression of DNA-PKcs in normal gastric mucosa,and the positive rate of DNA-PKcs protein expression in patients with a normal gastric mucosa was 0%(0/34),whereas the rate in gastric cancer(GC)was 93.8%(137/146).The difference between the two groups was statistically significant.Additionally,the positive rate of Ku 70/80 was79.4%(27/34)in normal gastric mucosa and 96.6%(141/146)in gastric cancer.The DNA-PKcs protein level was significantly increased in gastric cancer(MannWhitney U=39.00,P<0.001),compared with normal gastric mucosa.In addition,there was a significant difference in the expression of Ku 70/80(Mann-Whitney U=1117.00,P<0.001)between gastric cancer and normal gastric mucosa.There was also a significant difference in Ku70/80 protein expression between GC patients with and without H.pylori infection(P<0.05).Spearman analysis showed a negative correlation between tumor differentiation and DNA-PKcs expression(r=-0.447,P<0.05).Moreover,Ku70/80 expression was negatively correlated with both clinical stage(r=-0.189,P<0.05)and H.pylori colonization(r=-0.168,P<0.05).CONCLUSION:Overall,this research demonstrated that enhanced DNA-PKcs and Ku 70/80 expression may be closely associated with gastric carcinoma.
基金Supported by(in part)grants from the National Natural Science Foundation of China,No.81060038,No.81270479,and No.81470832the National Science and Technology Major Projects for"Major New Drugs Innovation and Development"of China,No.2011ZX09302-007-03+1 种基金the"Talent 555 Project"of Jiangxi Province,Chinaand the Graduate Innovation Fund of Jiangxi Province,No.YC2014-B021
文摘AIM: To assess the effect of Helicobacter pylori(H. pylori) infection on metabolic parameters in Mongolian gerbils.METHODS: A total of 40 male, 5- to 8-wk-old, specific-pathogen-free Mongolian gerbils(30-50 g) were randomly allocated into two groups: a control group(n = 20) and an H. pylori group(n = 20). After a two-week acclimation period, the control group was administered Brucella broth and the H. pylori group was challenged intra-gastrically five times every other day with approximately 109/CFU H. pylori ATCC43504(Cag A+, Vac A+). Each group was then divided into two subgroups, which were sacrificed at either 6 or 12 mo. The control and H. pylori subgroups each contained 10 Mongolian gerbils. Body weight, abdominal circumference, and body length were measured, and body mass index(BMI) and Lee's index were calculated. Biochemical assays were used to detect serum indexes, including glucose, glycated hemoglobin(GHb), glycated hemoglobin A1c(Hb A1c), triacylglycerol, and total cholesterol, using an automatic biochemistry analyzer. Inflammatory cytokines, including interleukin(IL)-1β, IL-2, IL-4,IL-10, IL-12, tumor necrosis factor-α(TNF-α) and interferon(IFN)-g, were assayed using ELISA. The expression of insulin and insulin-like growth factor 1(IGF-1) was detected by immunohistochemistry, and islet apoptosis was measured using the terminal deoxynucleotidyl transferase-mediated d UTP nick end labeling(TUNEL) assay.RESULTS: At each time point, body weight, abdominal circumference, BMI, and Lee's index were increased after H. pylori infection. However, these differences were not significant. H. pylori infection significantly increased the GHb(5.45 ± 0.53 vs 4.98 ± 0.22, P < 0.05) and Hb A1c(4.91 ± 0.61 vs 4.61 ± 0.15, P < 0.05) levels at 12 mo. We observed no significant differences in serum biochemical indexes, including fasting blood glucose, triacylglycerol and total cholesterol, at 6 or 12 mo after infection. H. pylori infection significantly increased the expression of IGF-1(P < 0.05). Insulin levels from the pancreas and the apoptotic rate of islet β-cells remained unchanged. Also, we observed no significant differences among cytokines levels, including IL-1β, IL-2, IL-4, IL-10, IL-12, TNF-α and IFN-g. IL-4 was the only exception, which increased at 6(44.36 ± 25.17 vs 17.38 ± 3.47, P < 0.05) and 12 mo(33.41 ± 10.00 vs 18.91 ± 5.31, P < 0.05) after H. pylori infection.CONCLUSION: Long-term H. pylori infection is significantly associated with high levels of Hb A1 c in Mongolian gerbils, indicating a potential role of H. pylori infection in glucose dysregulation.
基金Supported by National Natural Science Foundation of China,No.81060038 and No.81270479Grants from Jiangxi Province Talent 555 Project+1 种基金National Science and Technology Major Projects for"Major New Drug Innovation and Development"of China,No.2011ZX09302-007-03Graduate Innovative Foundation of Jiangxi Province,China,No.YC2013-B004
文摘AIM: To investigate whether Helicobacter pylori (H. pylori) infection contributes to idiopathic thrombocytopenic purpura (ITP) or iron-deficiency anemia (IDA) onset in gerbils.
文摘BACKGROUND Mesonephric adenocarcinoma(MNAC)is an extremely rare malignancy in the female genital tract.Only a few cases have been reported in the literature,and most of them occurred in the cervix,with extremely rare cases in the uterine body and ovary.MNAC has never been reported to arise in the fallopian tube.CASE SUMMARY A 45-year-old woman was referred to our institution with a history of abdominal pain.Ultrasound revealed a cystic and solid mass in left adnexal region.The patient underwent complete staging surgery when intraoperative pathological examination demonstrated that the mass was malignant.The final histological and immunohistochemical results confirmed the diagnosis of MNAC originating from the fallopian tube.Then she received four cycles of combination chemotherapy with carboplatin plus paclitaxel.The tumor recurred with hepatic metastases 4 mo after initial surgery,and second resection of the tumors in the liver plus partial hepatectomy was performed.She was supplemented with five courses of a new combination chemotherapy with gemcitabine plus carboplatin,and there was no evidence of recurrence within the 22-mo follow-up period after the second surgery.CONCLUSION MNAC originating from the fallopian tube is an extremely rare and high malignancy with a poor prognosis.It can be very aggressive,even at early stage.Little is known about the clinical characteristics,pathological diagnosis,prognosis,and optimal management strategy of MNAC originating from the fallopian tube.Herein we report the first case of primary MNAC deriving from the fallopian tube.
基金The authors acknowledge financial support from RGC Postdoctoral Fellowship Scheme(grant no.PDFS2223_5S01)Science and Technology Bureau of Huangpu District(grant no.2020GH03)Innovation and Technology Fund(grant nos.GHP/047/20GD and PRP/055/21FX).
文摘Alongside the rapid development of flexible and wearable electronics,the search for reliable,safe,and high-energy rechargeable flexible batteries(FBs)has become a research hotspot in recent years.Although there are some prototype FBs exhibited by the industry and a rapidly increasing number of publications reported by academia,most demonstrations are shown on a laboratory scale,and it is still difficult to find real implementation of the technology in the market.This perspective aims to discuss and analyze the key metrics,including energy density,flexibility,and safety,that are critical to pushing FBs to a commercially viable level,with a special focus on the lithium batteries and zinc batteries most reported in the literature.We first compare the figure of merit of FBs(fbFOM)of existing lithium-based and zinc-based FBs with the requirement for market applications.We then analyze the most desired cell configurations toward high flexibility,followed by systematic discussions on features and materials selection toward high energy density FBs.Third,we discuss strategies to enhance battery safety.An outlook of the future developments needed to address the gaps between the state-of-the-art demonstrations and real applications is provided at the end of this article.
基金We would like to thank the National“973”Plan Project of China(No.2013CB228002)for providing financial support to this research work.
文摘The shale gas reservoirs are composed of porous media of different length scales such as nanopores,micropores,natural fractures and hydraulic fractures,which lead to high heterogeneity.Gas flow from pores to fractures is under different flow regimes and in the control of various flow mechanisms.The gas slippage would have significant effects on gas flow in shale.To obtain the effect of slippage on gas flow in matrix and fractures,contrast experiments were run by using cores with penetration fractures and no fractures from Marine Shale in Southern China under constant confining pressure.The results showed that slippage effect dominates and increases the gas permeability of cores without fractures.To cores with penetration fractures,slippage effect is associated with the closure degree of fractures.Slippage dominates when fractures close under low pore pressure.Slippage weakens due to the fractures opening under high pore pressure.Fracture opening reduces the seepage resistance and slippage effect.The Forchheimer effect occurs and leads to a permeability reduction.
