2.Sudden cardiac death of incarcerated prisoners: a study of 75 cases.
Lan YU ; Li-Min DONG ; Xian-Jun HOU ; Kai SHI ; Kai XU
Journal of Forensic Medicine 2014;30(2):112-116
OBJECTIVE:
To investigate the characteristics and influencing factors leading to sudden cardiac death (SCD) of incarcerated prisoners.
METHODS:
Seventy-five SCD cases of prisoners between 2000 and 2013 in Henan province were collected, and environment, psychological and physical factors were retrospectively analyzed. Combined with histopathological results, specific factors of SCD were also studied.
RESULTS:
In the 75 cases, 21 cases (28%) had definite chronic past medical histories, and 75 cases (100%) had cardiovascular disease confirmed by autopsy.
CONCLUSION
Due to presence of the potential cardiac diseases, special incarcerated environment, psychological stress, and body-restraint might be the precipitating factors in SCD of those prisoners.
Autopsy
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Cardiovascular Diseases
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Death, Sudden, Cardiac
;
Environment
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Humans
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Mental Disorders
;
Prisoners
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Retrospective Studies
;
Stress, Psychological
3.Transcriptome analysis of bioenergy plant Miscanthus sinensis Anderss by RNA-Seq.
Xian ZHANG ; Jianhong WANG ; Man YU ; Kai CAO ; Li ZHUANG ; Changxu XU ; Weidong CAO
Chinese Journal of Biotechnology 2015;31(10):1437-1448
Miscanthus sinensis Anderss is a perennial C4-grass. It is a promising bioenergy plant, which has been proposed as general feedstock for biomass and lignocellulosic biofuel production. In this study, the flower and leaf buds transcriptomes of Miscanthus sinensis Anderss were sequenced by the platform of Illumina HiSeq 2000. In total 98 326 Unigenes were generated by de novo assembly with an average length of 822 bp and N50 of 1 023 bp. Based on the NR, NT, Swiss-Prot, KEGG, GO and COG databases (Evalue < le-5), 74 134 (75.40%) Unigenes were annotated. A total of 45 507 Unigenes were mapped into different GO terms. In KEGG pathways identification, 36 710 sequences were assigned to 128 KEGG pathways. Sorghum bicolor (37 731, 60.86%), Zea mays (16 258, 26.22%), and Oryza sativa (3 065, 4.94%) showed high similarity to Miscanthus sinensis Anderss. And 24 photosynthesis-related enzyme genes were identified. The result provides a foundation for further characterizing the functional genes in Miscanthus sinensis Anderss.
Biofuels
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Gene Expression Profiling
;
Genes, Plant
;
Poaceae
;
genetics
;
metabolism
;
RNA, Plant
;
genetics
;
Sequence Analysis, RNA
;
Transcriptome
4.Expressions of glucose transporter 1 and 3 proteins are changing with blood glucose concentration in diabetic rat brain
Yu-Xin XIAN ; Wei-Kai HOU ; Xin-Guo HOU ; Ming DONG ; Li CHEN ;
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
Streptozotocin-induced diabetic model was prepared in Wistar rats and the blood glucose levels were controlled at 3 levels of<10,10-14 mmol/L or>16.7 mmol/L by insulin,and changes of glucose transporter(GLUT)1 and 3 protein expressions of brain were observed in control rats and diabetic rats with different blood glucose levels by immunohistochemistry.The results showed that chronic hyperglycemia could decrease the protein expressions of GLUT 1 and GLUT3.
6.Improvement of beer anti-staling capability by genetically modifying industrial brewing yeast with high glutathione content.
Kai JIANG ; Qi LI ; Guo-Xian GU
Chinese Journal of Biotechnology 2007;23(6):1071-1076
Based on homologous recombination, recombinant plasmid pRKG was constructed by replacing the internal fragment of 18S rDNA of pRJ-5 with a copy of gamma-glutamylcysteine synthetase gene (GSH1) from the industrial brewing yeast strain G03 and a copy of G418 resistance gene (Kan) used as the dominant selection marker respectively. The fragment 18s rDNA::( Kan-GSH1) obtained through the PCR reaction was integrated to the chromosomal DNA of G03 strain, and recombinants were screened by G418 resistance. It was shown that the GSH content of beer fermented with the recombinant strain SG1 was 16.6% higher than that of G03, and no significant difference in routine fermentation parameters was found. To test the genetic stability, strains SG1 was inoculated into flasks and transfered continuously 5 times. The intracellular glutathione content of strain kept constant basically. It is an instructive attempt of genetically modifing industrial brewing yeast, as GSH1 was obtained from the host itself.
Beer
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microbiology
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Fermentation
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Gene Expression Regulation, Fungal
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Glutamate-Cysteine Ligase
;
biosynthesis
;
genetics
;
metabolism
;
Glutathione
;
biosynthesis
;
Industrial Microbiology
;
Organisms, Genetically Modified
;
Recombination, Genetic
;
Saccharomyces cerevisiae
;
enzymology
;
genetics
;
metabolism
;
Saccharomyces cerevisiae Proteins
;
biosynthesis
;
genetics
7.Advances in the study of berberine and its derivatives.
Bo LI ; Wei-Liang ZHU ; Kai-Xian CHEN
Acta Pharmaceutica Sinica 2008;43(8):773-787
Berberine is a isoquinoline alkaloid extracted from Chinese herbs such as Coptidis rhizome. In the past decade, there are more than 2 000 published papers studying the clinical application, pharmacodynamic mechanism and structure-activity relationship (SAR) of berberine and its derivatives, for treating tumor, diabetes, cardiavascellum disease, hyperlipemia, inflammation, bacterium and virus infection, cerebral ischemia trauma, mental disease, Alzheimer disease, osteoporosis, and so on. These results demonstrate that berberine has wide physiologic function and has great potential for structural modification as new drug lead. However, there is no systematic review about the study of berberine and its derivatives up to now. This paper is a systematic review of the research advances of berberine and its derevatives in clinical application, pharmacodynamic mechanisms, molecular pharmacology, absorption and metabolism, and SAR studies. The current review would provide some useful information for further study on structural modification of berberine for discovering new drug leads based on its pharmacodynamic mechanisms.
Alzheimer Disease
;
drug therapy
;
Animals
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Anti-Arrhythmia Agents
;
pharmacology
;
therapeutic use
;
Antineoplastic Agents, Phytogenic
;
pharmacology
;
therapeutic use
;
Apoptosis
;
drug effects
;
Berberine
;
analogs & derivatives
;
pharmacology
;
therapeutic use
;
Cardiovascular Diseases
;
drug therapy
;
Cell Line, Tumor
;
Diabetes Mellitus
;
drug therapy
;
Humans
;
Hypoglycemic Agents
;
pharmacology
;
therapeutic use
;
Structure-Activity Relationship
8.A new monoterpene glycoside from Paeonia lactiflora Pall.
Xiao-yan ZHANG ; Chong-kai GAO ; Jin-hui WANG ; Xian LI
Acta Pharmaceutica Sinica 2002;37(9):705-708
AIMTo study the chemical constituents of Paeonia lactiflora.
METHODSThe constituents of P. lactiflora were separated by using various kinds of modern chromatography and was identified its structure on the basis of spectral analysis.
RESULTSA monoterpene glucoside named albiflorin R1 was isolated from the roots of Paeonia lactiflora Pall. In the structure of albiflorin R1, the aglycone connected with a glucose at its 2-OH while the hemiacetal hydroxyl in glucose moiety was free.
CONCLUSIONAlbiflorin R1 is a new monoterpene glycoside.
Glucosides ; chemistry ; isolation & purification ; Heterocyclic Compounds, 3-Ring ; chemistry ; isolation & purification ; Molecular Conformation ; Molecular Structure ; Paeonia ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry
10.Effect of light and heat on the stability of furacilin aqueous solution.
Zhi-yi LI ; Xian-cheng ZHAN ; Lin-li LI ; Kai-lan LI ; Tao LIN ; Cheng-rong LI
Acta Pharmaceutica Sinica 2002;37(2):148-152
AIMTo study the effect of both light and heat on the stability of furacilin aqueous solution and the probability of substituting for isothermal accelerated tests by nonisothermal accelerated tests upon exposure to light at high temperatures.
METHODSThe isothermal and nonisothermal accelerated tests were employed. The accelerated tests were proceeded in the dark and exposed to light at high temperature. Tungsten, ultraviolet and fluorescent lamps were employed in exposure tests.
RESULTSThe degradation of furacilin aqueous solution in isothermal heating experiments or the exposure experiments to light at high temperatures obeys zero-order kinetics. The total degradation rate constant k caused by both light and heat can be divided into two parts: k = kdark + klight, where kdark and klight are the degradation rate constant caused by heat and light, respectively. The klight can be expressed as klight = Alight.exp(-Ea,light/RT).E, where E is the illuminance of light; Alight and Ea,light are both experimental constants. The parameters obtained in nonisothermal accelerated tests were comparable to those obtained in classic isothermal accelerated tests.
CONCLUSIONNonisothermal accelerated tests may substitute for isothermal accelerated tests during the study of the effects of both light and heat on the stability of drugs, in order to save time, labor and drugs.
Anti-Infective Agents, Local ; chemistry ; Drug Stability ; Hot Temperature ; Light ; Mathematics ; Nitrofurazone ; chemistry ; Solutions