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The “3 Genomic Numbers” Discovery: How Our Genome Single-Stranded DNA Sequence Is “Self-Designed” as a Numerical Whole
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作者 Jean-Claude Perez 《Applied Mathematics》 2013年第10期37-53,共17页
This article proves the existence of a hyper-precise global numerical meta-architecture unifying, structuring, binding and controlling the billion triplet codons constituting the sequence of single-stranded DNA of the... This article proves the existence of a hyper-precise global numerical meta-architecture unifying, structuring, binding and controlling the billion triplet codons constituting the sequence of single-stranded DNA of the entire human genome. Beyond the evolution and erratic mutations like transposons within the genome, it’s as if the memory of a fossil genome with multiple symmetries persists. This recalls the “intermingling” of information characterizing the fractal universe of chaos theory. The result leads to a balanced and perfect tuning between the masses of the two strands of the huge DNA molecule that constitute our genome. We show here how codon populations forming the single-stranded DNA sequences can constitute a critical approach to the understanding of junk DNA function. Then, we suggest revisiting certain methods published in our 2009 book “Codex Biogenesis”. In fact, we demonstrate here how the universal genetic code table is a powerful analytical filter to characterize single-stranded DNA sequences constituting chromosomes and genomes. We can then show that any genomic DNA sequence is featured by three numbers, which characterize it and its 64 codon populations with correlations greater than 99%. The number “1” is common to all sequences, expressing the second law of Chargaff. The other 2 numbers are related to each specific DNA sequence case characterizing life species. For example, the entire human genome is characterized by three remarkable numbers 1, 2, and Phi = 1.618 the golden ratio. Associated with each of these three numbers, we can match three axes of symmetry, then “imagine” a kind of hyperspace formed by these codon populations. Then we revisit the value (3-Phi)/2 which is probably universal and common to both the scale of quarks and atomic levels, balancing and tuning the whole human genome codon population. Finally, we demonstrate a new kind of duality between “form and substance” overlapping the whole human genome: we will show that—simultaneously with the duality between genes and junk DNA—there is a second layer of embedded hidden structure overlapping all the DNA of the whole human genome, dividing it into a second type of duality information/redundancy involving golden ratio proportions. 展开更多
关键词 Genetic Code CODON Populations Junk DNA Cancer Genomics Chromosomal Translocations Genomes Diversity Chromosomes Diversity WHOLe Human GeNOMe DNA SeQUeNCe “Phi” the Golden Ratio Fibonacci NUMBeRS Information Theory SYMMeTRY Cellular Automata Chargaff’s CODON Level SYMMeTRY Principle Fractal Self-Similarity e euler’s Number “Pi” form and Substance Redundancy encryption
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Liver as a new target organ in Alzheimer's disease:insight from cholesterol metabolism and its role in amyloid-beta clearance
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作者 Beibei Wu Yuqing Liu +4 位作者 Hongli Li Lemei Zhu Lingfeng Zeng Zhen Zhang Weijun Peng 《Neural Regeneration Research》 SCIE CAS 2025年第3期695-714,共20页
Alzheimer's disease,the primary cause of dementia,is characterized by neuropathologies,such as amyloid plaques,synaptic and neuronal degeneration,and neurofibrillary tangles.Although amyloid plaques are the primar... Alzheimer's disease,the primary cause of dementia,is characterized by neuropathologies,such as amyloid plaques,synaptic and neuronal degeneration,and neurofibrillary tangles.Although amyloid plaques are the primary characteristic of Alzheimer's disease in the central nervous system and peripheral organs,targeting amyloid-beta clearance in the central nervous system has shown limited clinical efficacy in Alzheimer's disease treatment.Metabolic abnormalities are commonly observed in patients with Alzheimer's disease.The liver is the primary peripheral organ involved in amyloid-beta metabolism,playing a crucial role in the pathophysiology of Alzheimer's disease.Notably,impaired cholesterol metabolism in the liver may exacerbate the development of Alzheimer's disease.In this review,we explore the underlying causes of Alzheimer's disease and elucidate the role of the liver in amyloid-beta clearance and cholesterol metabolism.Furthermore,we propose that restoring normal cholesterol metabolism in the liver could represent a promising therapeutic strategy for addressing Alzheimer's disease. 展开更多
关键词 ABCA1 Alzheimer's disease AMYLOID-BeTA apolipoprotein e cholesterol metabolism LIVeR liver X receptor low-density lipoprotein receptor-related protein 1 peripheral clearance tauroursodeoxycholic acid
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Studies on mechanism of Sialy Lewis-X antigen in liver metastases of human colorectal carcinoma 被引量:19
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作者 Xiao Wei Li~1 Yan Qing Ding~1 Jun Jie Cai~1 Shao Qing Yang~2 Lian Bing An~3 Dong Fang Qiao~3 ~1Department of Pathology,Nanfang Hospital of the First Military Medical University,Guangzhou 510515,Guangdong Province,China ~2The Northern Hospital of PLA,Shenyang 110015,Liaoning Province,China ~3Department of Electronmicroscopy,First Military Medical University,Guangzhou 510515,Gangdong Province,ChinaDr.Xiao Wei Li graduated from the First Military Medical University with a MM degree in 1999.Physician in Charge of pathology,having 6 papers published. 《World Journal of Gastroenterology》 SCIE CAS CSCD 2001年第3期425-430,共6页
INTRODUCTIONSialyl Lewis-X antigen ,correlated with carcinoma, is a group of carbohydrate antigen containing oligosaccharide expressed of embryonic tisue and glycoproteins on cell surface of embryonic tissue[1].The SL... INTRODUCTIONSialyl Lewis-X antigen ,correlated with carcinoma, is a group of carbohydrate antigen containing oligosaccharide expressed of embryonic tisue and glycoproteins on cell surface of embryonic tissue[1].The SLeX antigen located on cell surface is synthesized principally by two enzymes ,al ,3fucosyltransfrease and a2, 3sialyctransferase.In adults ,SLeX antigen is expressed principally on the surfaces of granulocytic cells and some tumor cells . 展开更多
关键词 Animals Antibodies Monoclonal Antigens CD15 Cell Adhesion Colorectal Neoplasms e-Selectin endothelium Vascular Flow Cytometry HT29 Cells Humans Immunohistochemistry In Situ Hybridization Liver Neoplasms MICe Mice Inbred BALB C Mice Nude Microscopy electron Microscopy electron Scanning N-Acetylneuraminic Acid RNA Messenger Research Support Non-U.S. Gov't Tumor Cells Cultured Umbilical Veins
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Evaluation of Technical Education by Using a Modern Structured MOODLE Laboratory Course, in Relation to Recent Data
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作者 Gerasimos Vlassopoulos George Albert Karikas +4 位作者 Efstathia Papageorgiou Ioannis Psaromiligkos Niki Giannouli Pigi Vlassopoulou Petros Karkalousos 《Journal of Intelligent Learning Systems and Applications》 2024年第3期316-339,共24页
E-learning platforms support education systems worldwide, transferring theoretical knowledge as well as soft skills. In the present study high-school pupils’, and adult students’ opinions were evaluated through a mo... E-learning platforms support education systems worldwide, transferring theoretical knowledge as well as soft skills. In the present study high-school pupils’, and adult students’ opinions were evaluated through a modern structured MOODLE interactive course, designed for the needs of the laboratory course “Automotive Systems”. The study concerns Greek secondary vocational education pupils aged 18 and vocational training adult students aged 20 to 50 years. The multistage, equal size simple random cluster sample was used as a sampling method. Pupils and adult students of each cluster completed structured 10-question questionnaires both before and after attending the course. A total of 120 questionnaires were collected. In general, our findings disclosed that the majority of pupils and adult students had significantly improved their knowledge and skills from using MOODLE. They reported strengthening conventional teaching, using the new MOODLE technology. The satisfaction indices improved quite, with the differences in their mean values being statistically significant. 展开更多
关键词 Information and Communication Technologies (ICT) Distance Learning e-Learning Students’ Opinions education in Greece I.C.T. in Greece STUDeNTS Pupils Adults Adult Students MOODLe MOOC (V.H.S.) Vocational High Schools (S.H.V.T.) Schools of Higher Vocational Training VOCATIONAL Profession Interactive Lessons Courses Training Laboratory Course Secondary education Automotive Systems Car Systems
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A Fractal Rindler-Regge Triangulation in the Hyperbolic Plane and Cosmic de Sitter Accelerated Expansion
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作者 Mohamed S. El Naschie 《Journal of Quantum Information Science》 2015年第1期24-31,共8页
The well known finite elements Regge calculus is transformed to a triangulation in the hyperbolic plane using fractal Rindler wedges as tiling elements. The final result is an expanding de Sitter hyperbolic, i.e. Gaus... The well known finite elements Regge calculus is transformed to a triangulation in the hyperbolic plane using fractal Rindler wedges as tiling elements. The final result is an expanding de Sitter hyperbolic, i.e. Gauss-Bolyai-Lobachevsky universe with dark energy and ordinary energy densities in full agreement with cosmic observations and measurements. In the course of obtaining this vital result, the work addresses fundamental points connected to a host of subjects, namely Hardy’s quantum entanglement, an extension of Turing’s machine to a transfinite version, the phenomenon of measure concentration in the context of Banach-like spaces with high dimensionality as well as the pioneering work on the relation between quantum entanglement and computational efficiency. 展开更多
关键词 Component Hyperbolic Regge Calculus Finite elements in Cosmology de SITTeR Universe e-INFINITY Theory Transfinite TURING Golden Mean Computer Rindler TRIANGULATION endophysics Anti-Bethes Poof Topological Quantum entanglement Gauss-Bolyai-Lobachevsky Geometry
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Protective actions of salvianolic acid A on hepatocyte injured by peroxidation in vitro 被引量:15
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作者 Hu YY Liu CH +3 位作者 Wang RP Liu C Liu P Zhu DY 《World Journal of Gastroenterology》 SCIE CAS CSCD 2000年第3期402-404,共3页
INTRODUCTION Salvianolic radix,one of the most commonly usedtraditional Chinese herbs,was widely studied aboutits actions against liver injury and fibrosis,and wasone of the focuses of recent research.Salvianolic acid... INTRODUCTION Salvianolic radix,one of the most commonly usedtraditional Chinese herbs,was widely studied aboutits actions against liver injury and fibrosis,and wasone of the focuses of recent research.Salvianolic acid-A(SA-A)was an aqueous solublecomponent of Salvianolic radix.In our 展开更多
关键词 Salvianolic acid A HePATOCYTe carbon TeTRACHLORIDe liver injury lipid PeROXIDATION water soluble vitamin e ALT AST superoxide DISMUTASe malondiadehyde catalase LACTASe dehydrogenase GLUTATHIONe peroxidase GLUTATHIONe
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Ferroptosis mechanism and Alzheimer's disease 被引量:8
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作者 Lina Feng Jingyi Sun +6 位作者 Ling Xia Qiang Shi Yajun Hou Lili Zhang Mingquan Li Cundong Fan Baoliang Sun 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第8期1741-1750,共10页
Regulated cell death is a genetically determined form of programmed cell death that commonly occurs during the development of living organisms.This process plays a crucial role in modulating homeostasis and is evoluti... Regulated cell death is a genetically determined form of programmed cell death that commonly occurs during the development of living organisms.This process plays a crucial role in modulating homeostasis and is evolutionarily conserved across a diverse range of living organisms.Ferroptosis is a classic regulatory mode of cell death.Extensive studies of regulatory cell death in Alzheimer’s disease have yielded increasing evidence that fe rroptosis is closely related to the occurrence,development,and prognosis of Alzheimer’s disease.This review summarizes the molecular mechanisms of ferroptosis and recent research advances in the role of ferro ptosis in Alzheimer’s disease.Our findings are expected to serve as a theoretical and experimental foundation for clinical research and targeted therapy for Alzheimer’s disease. 展开更多
关键词 Alzheimer’s disease apolipoprotein e Fe^(2+) ferroptosis glial cell glutathione peroxidase 4 imbalance in iron homeostasis lipid peroxidation regulated cell death system Xc^(-)
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The role of antioxidants and pro-oxidants in colon cancer 被引量:4
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作者 William L Stone Koyamangalath Krishnan +1 位作者 Sharon E Campbell Victoria E Palau 《World Journal of Gastrointestinal Oncology》 SCIE CAS 2014年第3期55-66,共12页
This review focuses on the roles antioxidants and prooxidants in colorectal cancer(CRC).Considerable evidence suggests that environmental factors play key roles in the incidence of sporadic CRC.If pro-oxidant factors ... This review focuses on the roles antioxidants and prooxidants in colorectal cancer(CRC).Considerable evidence suggests that environmental factors play key roles in the incidence of sporadic CRC.If pro-oxidant factors play an etiological role in CRC it is reasonable to expect causal interconnections between the wellcharacterized risk factors for CRC,oxidative stress and genotoxicity.Cigarette smoking,a high dietary consumption of n-6 polyunsaturated fatty acids and alcohol intake are all associated with increased CRC risk.These risk factors are all pro-oxidant stressors and their connections to oxidative stress,the intestinal microbiome,intestinal microfold cells,cyclooxygenase-2 and CRCare detailed in this review.While a strong case can be made for pro-oxidant stressors in causing CRC,the role of food antioxidants in preventing CRC is less certain.It is clear that not every micronutrient with antioxidant activity can prevent CRC.It is plausible,however,that the optimal food antioxidants for preventing CRC have not yet been critically evaluated.Increasing evidence suggests that RRR-gamma-tocopherol(the primary dietary form of vitamin E)or other"non-alpha-tocopherol"forms of vitamin E(e.g.,tocotrienols)might be effective.Aspirin is an antioxidant and its consumption is linked to a decreased risk of CRC. 展开更多
关键词 Colorectal cancer VITAMIN e Tocopherols Tocotrienols Oxidative stress Microbiome INTeSTINAL CYCLOOXYGeNASe-2 INTeSTINAL microfold cells Alcohol CIGAReTTe smoke ANTIOXIDANTS GeNOTOXICITY
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Reciprocity as an Ever-Present Dual Property of Everything 被引量:5
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作者 Hans Hermann Otto 《Journal of Modern Physics》 2020年第1期98-121,共24页
Reciprocity may be understood as relation of action and reaction in the sense of Hegel’s philosophical definition. Quoting Kant, freedom and ethical necessities are reciprocally limited. In this contribution, a more ... Reciprocity may be understood as relation of action and reaction in the sense of Hegel’s philosophical definition. Quoting Kant, freedom and ethical necessities are reciprocally limited. In this contribution, a more mathematical than philosophical reflection about reciprocity as an ever-present dual property of everything was given. As a crystallographer, the author is familiar with the action of Fourier transforms and the relation between a crystal lattice and its reciprocal lattice, already pointing to the duality between particles and waves. A generalization of the reciprocity term was stimulated by results of the famous Information Relativity (IR) theory of Suleiman with its proven physical manifestation of matter-wave duality, compared to the set-theoretical E-Infinity theory developed by El Naschie, where the zero set represents the pre-quantum particle, and the pre-quantum wave is assigned to the empty set boundary surrounding the pre-particle. Expectedly, the most irrational number of the golden mean is involved in these thoughts, because this number is intimately connected with its inverse. An important role plays further Hardy’s maximum quantum entanglement probability as the fifth power of &phi;and its connection to the dark matter. Remembering, the eleven dimensions in Witten’s M-theory may be decomposed into the Lucas number L5 = 11 = &phi;&minus;5 – &phi;5. Reciprocity is indeed omnipresent in our world as piloting waves that accompany all observable earthen and cosmic matter. As a side effect of the IR theory some fundamental constants such as the gyromagnetic factor of the electron, Sommerfeld’s fine-structure constant as well as the charge of the electron must be marginally changed caused by altered relativistic corrections. Consequences also arise for our vision about the evolution of life and consciousness. 展开更多
关键词 ReCIPROCITY Reciprocal Lattice Fourier Transform Archimedes’ CONSTANT Matter-Wave Duality Pilot WAVe Golden Mean e-INFINITY THeORY Information Relativity THeORY Gyromagnetic Factor Fine-Structure CONSTANT Quantum entanglement Dark MATTeR and Cosmos Superconductivity
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RECIPROCALLY TOPOGRAPHIC PROJECTIONS BETWEEN THE OPTIC TECTUM AND NUCLEUS ISTHMI IN THE TOAD 被引量:1
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作者 王荫亭 颜坤 王书荣 《Chinese Science Bulletin》 SCIE EI CAS 1983年第1期139-140,共2页
关键词 In this letter neuronal projections BeTWeeN the TOAD (Bufo BUFO gargarizans) optic toctum and nucleus isthmi (NI) are studied by means of horseradish peroxidase (HRP) method and HRP-labeled tectal and isthmic cells are classified.After surgical operation the animal was fixed in a stereotaxic apparatus. HRP (Sigma VI) was iontophorezed into different sites over superficial layers of the tectum in 53 TOADS and throughout NI in 13 TOADS one injection each animal. After their survival of 2—8 days at 16—20℃ using HRP histochemical method the injected and labeled sites as well as the morphology of the labeled cells were shown.The results indicate that reciprocally topographic projections exist BeTWeeN the TOAD optictectum and its ipsilateral NI i. e. an isthmic
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Low rectal cancer:Sphincter preserving techniques-selection of patients,techniques and outcomes 被引量:13
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作者 Nikoletta Dimitriou Othon Michail +1 位作者 Dimitrios Moris John Griniatsos 《World Journal of Gastrointestinal Oncology》 SCIE CAS 2015年第7期55-70,共16页
Low rectal cancer is traditionally treated by abdominoperineal resection. In recent years, several new techniques for the treatment of very low rectal cancer patients aiming to preserve the gastrointestinal continuity... Low rectal cancer is traditionally treated by abdominoperineal resection. In recent years, several new techniques for the treatment of very low rectal cancer patients aiming to preserve the gastrointestinal continuity and to improve both the oncological as well as the functional outcomes, have been emerged. Literature suggest that when the intersphincteric resection is applied in T1-3 tumors located within 30-35 mm from the anal verge, is technically feasible, safe, with equal oncological outcomes compared to conventional surgery and acceptable quality of life. The Anterior Perineal Plan E for Ultra-low Anterior Resection technique, is not disrupting the sphincters, but carries a high complication rate, while the reports on the oncological and functional outcomes are limited. Transanal Endoscopic Micro Surgery(TEM) and Trans Anal Minimally Invasive Surgery(TAMIS) should represent the treatment of choice for T1 rectal tumors, with specific criteria according to the NCCN guidelines and favorable pathologic features. Alternatively to the standard conventional surgery, neoadjuvant chemo-radiotherapy followed by TEM or TAMIS seems promising for tumors of a local stage T1sm2-3 or T2. Transanal Total Mesorectal Excision should be performed only when a board approved protocol is available by colorectal surgeons with extensive experience in minimally invasive and transanal endoscopic surgery. 展开更多
关键词 Low rectal cancer SPHINCTeR preservingsurgery Intersphincteric ReSeCTION ANTeRIOR PerinealPlane for Ultra-low ANTeRIOR ReSeCTION of the Rectum Total mesorectal eXCISION TRANSANAL Minimally InvasiveSurgery TRANSANAL Total Mesorectal eXCISION Quality oflife Oncological OUTCOMe Functional OUTCOMe
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Entanglement of E8E8 Exceptional Lie Symmetry Group Dark Energy, Einstein’s Maximal Total Energy and the Hartle-Hawking No Boundary Proposal as the Explanation for Dark Energy 被引量:7
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作者 Mohamed S. El Naschie 《World Journal of Condensed Matter Physics》 2014年第2期74-77,共4页
The present note is concerned with two connected and highly important fundamental questions of physics and cosmology, namely if E8E8 Lie symmetry group describes the universe and where cosmic dark energy comes from. F... The present note is concerned with two connected and highly important fundamental questions of physics and cosmology, namely if E8E8 Lie symmetry group describes the universe and where cosmic dark energy comes from. Furthermore, we reason following Wheeler, Hartle and Hawking that since the boundary of a boundary is an empty set which models the quantum wave of the cosmos, then it follows that dark energy is a fundamental physical phenomenon associated with the boundary of the holographic boundary. This leads directly to a clopen universe which is its own Penrose tiling-like multiverse with energy density in full agreement with COBE, WMAP and Type 1a supernova cosmic measurements. 展开更多
关键词 e8 exceptional Lie Symmetry GROUP Dark energy einstein’s Relativity e-INFINITY Theory Wheeler BOUNDARY of a BOUNDARY Hartle-Hawking NO BOUNDARY PROPOSAL Penrose Tiling Multiverse
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GSTT1,GSTM1 and CYP2E1 genetic polymorphisms in gastric cancer and chronic gastritis in a Brazilian population 被引量:11
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作者 Jucimara Colombo Ana Elizabete Silva +3 位作者 Andréa Regina Baptista Rossit Alaor Caetano Aldenis Albaneze Borim Durval Wohnrath 《World Journal of Gastroenterology》 SCIE CAS CSCD 2004年第9期1240-1245,共6页
AIM:To test the hypothesis that,in the Southeastern Brazilian population,the GSTT1,GSTM1 and CYP2E1 polymorphisms and putative risk factors are associated with an increased risk for gastric cancer. METHODS:We conducte... AIM:To test the hypothesis that,in the Southeastern Brazilian population,the GSTT1,GSTM1 and CYP2E1 polymorphisms and putative risk factors are associated with an increased risk for gastric cancer. METHODS:We conducted a study on 100 cases of gastric cancer (GC),100 cases of chronic gastritis (CG),and 150 controls (C).Deletion of the GSTT1 and GSTM1 genes was assessed by multiplex PCR.CYP2E1/Pst1 genotyping was performed using a PCR-RFLP assay. RESULTS:No relationship between GSTT1/GSTM1 deletion and the c1/c2 genotype of CYP2E1 was observed among the three groups.However,a significant difference between CG and C was observed,due to a greater number of GSTT1/GSTM1 positive genotypes in the CG group.The GSTT1 null genotype occurred more frequently in Negroid subjects,and the GSTM1 null genotype in Caucasians,while the GSTM1 positive genotype was observed mainly in individuals with chronic gastritis infected with H pylori. CONCLUSION:Our findings indicate that there is no obvious relationship between the GSTT1,GSTM1 and CYP2E1 polymorphisms and gastric cancer. 展开更多
关键词 Polymorphism Genetic Adolescent Adult Aged Aged 80 and over Brazil Case-Control Studies Chronic Disease Cytochrome P-450 CYP2e1 Female Gastritis Genotype Glutathione Transferase Humans Male Middle Aged Research Support Non-U.S. Gov't Risk Factors Stomach Neoplasms
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A Study of Visual Recognition of Facial Emotional Expressions in a Normal Aging Population in the Absence of Cognitive Disorders
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作者 Philippe Granato Shreekumar Vinekar +2 位作者 Olivier Godefroy Jean-Pierre Vangansberghe Raymond Bruyer 《Open Journal of Psychiatry》 2014年第3期251-260,共10页
Objective: To examine and measure the decision-making processes involved in Visual Recognition of Facial Emotional Expressions (VRFEE) and to study the effects of demographic factors on this process. Method: We evalua... Objective: To examine and measure the decision-making processes involved in Visual Recognition of Facial Emotional Expressions (VRFEE) and to study the effects of demographic factors on this process. Method: We evaluated a newly designed software application (M.A.R.I.E.) that permits computerized metric measurement of VRFEE. We administered it to 204 cognitively normal participants ranging in age from 20 to 70 years. Results: We established normative values for the recognition of anger, disgust, joy, fear, surprise and sadness expressed on the faces of three individuals. There was a significant difference in the: 1) measurement (F (8.189) = 3896, p = 0.0001);2) education level (x2(12) = 28.4, p = 0.005);3) face (F(2.195) = 10, p = 0.0001);4)series (F (8.189)=28, p = 0.0001);5) interaction between the identity and recognition of emotions (F (16, 181 =11, p = 0.0001). However, performance did not differ according to: 1) age (F (6.19669) = 1.35, p = 0.2) or 2) level of education (F (1, 1587) = 0.6, p = 0.4). Conclusions: In healthy participants, the VRFEE remains stable throughout the lifespan when cognitive functions remain optimal. Disgust, sadness, fear, and joy seem to be the four most easily recognized facial emotions, while anger and surprise are not easily recognized. Visual recognition of disgust and fear is independent of aging. The characteristics of a face have a significant influence on the ease with which people recognize expressed emotions (idiosyncrasy). Perception and recognition of emotions is categorical, even when the facial images are integrated in a spectrum of morphs reflecting two different emotions on either side. 展开更多
关键词 ReCOGNITION emotions M.A.R.I.e. Aging Healthy PARTICIPANTS eMOTION STIMULUS (eS) eMOTION Set (eSet) eMOTION Series (eSr) VRFee eMOTION ReCOGNITION (eR) Canonical emotions (Ce) Intermediate emotions (Ie)
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Application of Dvoretzky’s Theorem of Measure Concentration in Physics and Cosmology
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作者 Mohamed S. El Naschie 《Open Journal of Microphysics》 2015年第2期11-15,共5页
Using Dvoretzky’s theorem in conjunction with Bohm’s picture of a quantum particle inside a guiding quantum wave akin to De Broglie-Bohm pilot wave we derive Einstein’s famous formula E = mc2 as the sum of two part... Using Dvoretzky’s theorem in conjunction with Bohm’s picture of a quantum particle inside a guiding quantum wave akin to De Broglie-Bohm pilot wave we derive Einstein’s famous formula E = mc2 as the sum of two parts E(O) = mc2/22 of the quantum particle and E(D) = m c2 (21/22) of the quantum wave where m is the mass, c is the speed of light and E is the energy. In addition we look at the problem of black holes information in the presence of extra dimensions where it seems initially that extra dimensions would logically lead to a hyper-surface for a black hole and consequently a reduction of the corresponding information density due to the dilution effect of these additional dimensions. The present paper argues that the counterintuitive opposite of the above is what should be expected. Again this surprising result is a consequence of the same well known theorem on measure concentration due to I. Dvoretzky. We conclude that there are only two real applications of the theorem and we expect that many more applications in physics and cosmology will be found in due course. 展开更多
关键词 SPACeTIMe extra Dimensions Dvoretzky’s THeOReM Information PARADOX e-INFINITY Theory Counterintuitive Geometry Dark energy of the Quantum WAVe 'tHooft-Susskind Black Holes Wave-Particle Duality De Broglie-Bohm Pilot WAVe
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Eleutheroside B or E enhances learning and memory in experimentally aged rats 被引量:8
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作者 Debin Huang Zehua Hu Zhaofen Yu 《Neural Regeneration Research》 SCIE CAS CSCD 2013年第12期1103-1112,共10页
Eleutheroside B or E, the main component of Acanthopanax, can relieve fatigue, enhance memory, and improve human cognition. Numerous studies have confirmed that high doses of acetylcholine significantly attenuate clin... Eleutheroside B or E, the main component of Acanthopanax, can relieve fatigue, enhance memory, and improve human cognition. Numerous studies have confirmed that high doses of acetylcholine significantly attenuate clinical symptoms and delay the progression of Alzheimer's disease. The present study replicated a rat model of aging induced by injecting quinolinic acid into the hippocampal CA1 region. These rats were intraperitoneally injected with low, medium and high doses of eleutheroside B or E (50, 100, 200 mg/kg), and rats injected with Huperzine A or PBS were used as controls. At 4 weeks after administration, behavioral tests showed that the escape latencies and errors in searching for the platform in a Morris water maze were dose-dependently reduced in rats treated with medium and high-dose eleutheroside B or E. Hematoxylin-eosin staining showed that the number of surviving hippocampal neurons was greater and pathological injury was milder in three eleutheroside B or E groups compared with model group. Hippocampal homogenates showed enhanced cholinesterase activity, and dose-dependent increases in acetylcholine content and decreases in choline content following eleutheroside B or E treatment, similar to those seen in the Huperzine A group. These findings indicate that eleutheroside B or E improves learning and memory in aged rats. These effects of eleutheroside B or E may be mediated by activation of cholinesterase or enhanced reuse of choline to accelerate the synthesis of acetylcholine in hippocampal neurons. 展开更多
关键词 neural regeneration traditional Chinese medicine eleutheroside B or e quinolinic acid aged rats Huperzine A learning and memory HIPPOCAMPUS ACeTYLCHOLINe CHOLINeSTeRASe CHOLINe mechanism grants-supported paper NeUROReGeNeRATION
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HBV genotype characterization and distribution in patients with HBV-related liver diseases in Zhejiang Province, P. R. China: possible association of co-infection with disease prevalence and severity 被引量:14
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作者 Edward Zumbika 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2005年第4期535-543,共9页
BACKGROUND: There are 8 well-documented genotypes of hepatitis B virus (HBV) at this time point. Genotyping can be accomplished based on a partial sequence of hepatitis B virus (HBV) genome such as the pre-S or S gene... BACKGROUND: There are 8 well-documented genotypes of hepatitis B virus (HBV) at this time point. Genotyping can be accomplished based on a partial sequence of hepatitis B virus (HBV) genome such as the pre-S or S gene. Several methods have been developed and used for HBV genotyping including direct sequencing, restriction fragment length polymorphism, line probe assay and enzyme-linked immunoassay. Recently, a novel, rapid and cost-effective genotyping method based on PCR amplification assay using type-specific primers that can identify all six major genotypes has been developed. This study was undertaken to characterise HBV genotypes and investigate the association between the prevalence of different genotypes and the severity of HBV-induced liver diseases. METHODS: Serum samples from carriers of HBV and patients with HBV-related liver diseases from Zhejiang Province were screened for viral serological markers using commercially available radioimmunoassay (RIA) and enzyme linked immunosorbent assay (ELISA) kits. Serum HBV DNA load was determined by real-time detection PCR. A type-specific primer based the nested-PCR method was employed in the HBV genotyping. The genotype results obtained were confirmed by direct sequencing of nested PCR amplicons of the pre-S region. Ten samples of each genotype (B and C) were sequenced. RESULTS: The survey on a cohort of 125 HBV carriers in and around Hangzhou City, Zhejiang Province showed the existence of HBV genotypes A (0.8%), B (48%), C (40.8%), D (0.8%), mixed B and C (9.6%) and an absence of E and F genotypes. Distribution of HBV genotypes in patients with liver diseases revealed a statistically insignificant higher prevalence of genotype B in mild chronic hepatitis (CH). Among the three genotypes B, C and mixed B/C infections 11 (73.3%), 3 (20%) and 1 (6.7%), (P< 0.05), respectively in subjects with moderate CH, genotype B was significantly predominant. The infection patterns for genotypes B, C and B/C mixed in (i) liver cirrhosis (LC) 4 (23.5%), 10 (58.8%) and3 (17.7%) and (ii) hepatocellular carcinoma (HCC) 2 (28.6%), 5(71.4%) and 0 (0.0%) respectively revealed a marked association of C genotype with liver disease; however, the association was statistically insignificant (P >0.05). Differences in positive rate of HBeAg for the three genotypes B, 16(30.8%), C, 27(51.9%), and mixed B/C, 9(17.3%) were significant (P < 0. 05 ) , with genotype C showing predominance. CONCLUSIONS : These findings show an interesting distribution of HBV A-D genotypes in Zhejiang Province. Furthermore, our results indicate a novel and markedly high prevalence of mixed B/C genotype infections in subjects with severe CH and LC, and a possible association of mixed B/C infections with the severity of liver diseases in this region of China's Mainland. 展开更多
关键词 hepatitis B virus chronic hepatitis B liver cirrhosis hepatocellular carcinoma hepatitis B e antigen hepatitis B virus DNA load VIReMIA hepatitis B genotypes liver function tests alanine transaminase aspartate transaminase real-time detection PCR
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Formation of (2E)-4-Hydroxy-2-nonenal and (2E)-4-Hydroxy-2-hexenal by Plant Enzymes: A Review Suggests a Role in the Physiology of Plants
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作者 Harold W. Gardner 《Advances in Enzyme Research》 CAS 2016年第2期56-61,共6页
It is demonstrated that (3Z)-nonenal (NON) and (3Z)-hexenal (HEX) are oxidized in a cascade by lipoxygenase (LOX) and hydroperoxide peroxygenase (HP peroxygenase) into (2E)-4-hydroxy-2- nonenal (HNE) and (2E)-4-hydrox... It is demonstrated that (3Z)-nonenal (NON) and (3Z)-hexenal (HEX) are oxidized in a cascade by lipoxygenase (LOX) and hydroperoxide peroxygenase (HP peroxygenase) into (2E)-4-hydroxy-2- nonenal (HNE) and (2E)-4-hydroxy-2-hexenal (HHE), respectively. In turn, HNE inactivates LOX terminating the cascade. The hydroxy-alkenals produced serve to inhibit plant pathogens, which initiated the cascade. In addition to LOX, other unknown oxygenases may be involved in the cascade. 展开更多
关键词 (3Z)-Nonenal (3Z)-Hexenal (2e)-4-Hydroxy-2-nonenal (2e)-4-Hydroxy-2-hexenal (2e)-4-Hydroperoxy-2-hexenal LIPOXYGeNASe Hydroperoxide Peroxygenase Hydroperoxide Lyase (2e)-4-Hydroperoxy-2-Nonenal 3 4-epoxynonanal (2e)-4-Oxo-2-nonenal Glycine max Vica faba Plant Pathogen
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Impact of apolipoprotein E isoforms on sporadic Alzheimer's disease:beyond the role of amyloid beta 被引量:3
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作者 Madia Lozupone Francesco Panza 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第1期80-83,共4页
The impact of apolipoprotein E(ApoE)isoforms on sporadic Alzheimer's disease has long been studied;however,the influences of apolipoprotein E gene(APOE)on healthy and pathological human brains are not fully unders... The impact of apolipoprotein E(ApoE)isoforms on sporadic Alzheimer's disease has long been studied;however,the influences of apolipoprotein E gene(APOE)on healthy and pathological human brains are not fully understood.ApoE exists as three common isoforms(ApoE2,ApoE3,and ApoE4),which differ in two amino acid residues.Traditionally,ApoE binds cholesterol and phospholipids and ApoE isoforms display diffe rent affinities for their receptors,lipids transport and distribution in the brain and periphery.The role of ApoE in the human depends on ApoE isoforms,brain regions,aging,and neural injury.APOE E4 is the strongest genetic risk factor for sporadic Alzheimer's disease,considering its role in influencing amyloid-beta metabolism.The exact mechanisms by which APOE gene variants may increase or decrease Alzheimer's disease risk are not fully understood,but APOE was also known to affect directly and indirectly tau-mediated neurodegeneration,lipids metabolism,neurovascular unit,and microglial function.Consistent with the biological function of ApoE,ApoE4 isoform significantly alte red signaling pathways associated with cholesterol homeostasis,transport,and myelination.Also,the rare protective APOE variants confirm that ApoE plays an important role in Alzheimer's disease pathogenesis.The objectives of the present mini-review were to describe classical and new roles of various ApoE isoforms in Alzheimer's disease pathophysiology beyond the deposition of amyloid-beta and to establish a functional link between APOE,brain function,and memory,from a molecular to a clinical level.APOE genotype also exerted a heterogeneous effect on clinical Alzheimer's disease phenotype and its outcomes.Not only in learning and memory but also in neuro psychiatric symptoms that occur in a premorbid condition.Cla rifying the relationships between Alzheimer's disease-related pathology with neuropsychiatric symptoms,particularly suicidal ideation in Alzheimer's disease patients,may be useful for elucidating also the underlying pathophysiological process and its prognosis.Also,the effects of anti-amyloid-beta drugs,recently approved for the treatment of Alzheimer's disease,could be influenced by the APOE genotype. 展开更多
关键词 Alzheimer's disease AMYLOID-BeTA apolipoprotein e DeMeNTIA glymphatic transport LIPIDS neuropsychiatric symptoms neurovascular unit tau protein
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Mechanical Behavior of Pillow Lavas in MakoSupergroup: Case of South Mako Hill
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作者 Déthié Sarr Meissa Fall +1 位作者 Papa Malick Ngom Mapathé Ndiaye 《International Journal of Geosciences》 2011年第4期640-647,共8页
This work shows the Kédougou-Kéniéba inlier (eastern Senegal) pillow lavas behavior from laboratory to field. Some uniaxial tests are carried out on five types of specimens of pillow lavas. These types ... This work shows the Kédougou-Kéniéba inlier (eastern Senegal) pillow lavas behavior from laboratory to field. Some uniaxial tests are carried out on five types of specimens of pillow lavas. These types of specimens are: macroscopicly healthy rock, fractured rock without filling, fractured rock filled with epidote, chlorite and calcite and rocks with tension crack filled with quartz. The Young moduli and the uniaxial compression strength are good for the healthy rock. The Young moduli fall slightly for facies with horizontal cracks while uniaxial compression strength (Rc) varies slightly. For filled fractured specimens, Rc and Young modulus (E) decrease remarkably. Decreases are most important for cracks filled with epidote, chlorite and calcite than with quartz. That is due to the differences of rigidity between these materials. Also, the slope stability of hillsides in this area depends on to these characteristics. 展开更多
关键词 Unconfined Compression Test-Uniaxial Compression Strength (UCT Rc) JRC (Joint ROUGHNeSS Coefficient) Young Modulus (e) ROUGHNeSS Kédougou-Kéniéba Inlier Linea-ments DISCONTINUITIeS Dihedral Slope HILLSIDe
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