1.Relaxant effects of total flavonoids of buckwheat flowers and leaves on rat thoracic aorta and underlying mechanisms
Bonan ZHANG ; Jinxiu CHU ; Shuying HAN
Chinese Pharmacological Bulletin 2003;0(07):-
Aim To explore the vasodilative effect on rat thoracic aortic ring of total flavonoids of Buckwheat flowers and leaves(TFBFL) and the underlying mechanisms.Methods Isometric tension measurements were used to study the effect of TFBFL on isolated rat thoracic aorta rings.Laser scanning confocal microscope was employed to measure the concentration of intracellular free calciums.Results In aorta rings precontracted with phenylephrine or potassium chloride,TFBFL caused a dose-dependent relaxation in both endothelium-intact and denuded rings and the relaxant effect of TFBFL was more potent on endothelium-intact aorta rings than that on endotheliumdenuded aorta rings(P
2.Impact of high-load atorvastatin on autoimmunity in patients with unstable angina
Jingyi ZHANG ; Bonan ZHANG ; Yan LI ; Huaibin MU ; Bing LV ; Chunlai ZHANG
Chongqing Medicine 2015;(1):42-44
Objective To explore the impact of high‐load atorvastatin on T cell subsets in patients with unstable angina (UA) after percutaneous coronary intervention (PCI) .Methods One hundred and eighty patients with UA were randomly divided into high‐load atorvastatin group ,ordinary‐load atorvastatin group and routine group ,60 cases in each group .The ratios of CD4+ T cell , CD8+ T cell and the frequencies of CD4+ CD25+ Treg were detected in 3 groups 1 day before PCI and 1 week ,1 month and 6 months after PCI by flow cytometry analysis .Results Different doses of atorvastatin reduced the ratio of CD4+ T cells and in‐creased the ratio of CD8+ T cells and also the frequencies of CD4+ CD25+ Treg after PCI for 1 week ,1 month and 6 months .The longer the time to take atorvastatin ,the more obvious the effect was(P<0 .05) .The ratios of CD4+ ,CD8+ T cells and the frequen‐cies of CD4+CD25+ Treg after PCI for 1 month and 6 months in high‐load atorvastatin showed significant difference compared with those in ordinary‐load atorvastatin group and routine group(P<0 .05) .Conclusion Atorvastatin could regulate the balance of T cell subsets in patients with UA ,and thus it may reduce the UA onset and the treatment effect of high‐load atorvastatin is more sig‐nificant .
3.Progress of research on polymorphisms of common drug metabolism related genes among various populations in China.
Tingting ZHANG ; Bonan DONG ; Qiuyan LI ; Songbin FU
Chinese Journal of Medical Genetics 2022;39(1):108-111
Genetic background can lead to differences in drug effects among different populations when they use the same drug. To delineate the pharmacogenomics and population genetic differences may help to clarify the role of polymorphisms of drug metabolism-related genes in drug effect heterogeneity among different populations. This article has summarized the latest progress on the polymorphisms of drug metabolism-related genes among different populations in China.
China
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Humans
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Pharmaceutical Preparations
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Pharmacogenetics
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Polymorphism, Genetic
4.Advance in research on genetic polymorphisms associated with athletic ability.
Bonan DONG ; Tingting ZHANG ; Qiuyan LI ; Songbin FU
Chinese Journal of Medical Genetics 2022;39(4):438-441
Genetic factors play a key role in human athletic ability, and endurance quality and explosive power quality are the important components of athletic ability. In this review, we aimed to reveal the biological genetic mechanism of human athletic ability at the molecular level through summarizing the relationship between genetic variants and human athletic ability, including endurance quality related genetic markers angiotensin converting enzyme (ACE) gene, creatine kinase MM (CKMM) gene and explosive power quality related genetic markers alpha actinin 3 (ACTN3) gene, angiotensinogen (AGT) gene and interleukin6 (IL6) gene. Meanwhile, we also summarized the distribution of allele frequencies among various populations.
Actinin/genetics*
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Athletic Performance
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Gene Frequency
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Genetic Markers
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Genotype
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Humans
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Polymorphism, Genetic
5.Study on Metabolic Transformation of Total Glycosides of Cistanche deserticola in Artificial Gastric and Intestinal Juice
Xinlei WANG ; Bonan LIU ; Mengmeng ZHANG ; Guiyu LIU ; Yang HU ; Xiangming SUN ; Wenlan LI
China Pharmacy 2020;31(1):53-61
ABSTRACT OBJECTIVE:To study the metabolic transformation of total glycosides of Cistanche deserticola in artificial gastric and intestinal juice,and to speculate its metabolic transformation pathway in vivo. METHODS:UPLC/Q-TOF-MS was adopted. The determination was performed on ACQUITY UPLC BEH column with mobile phase consisted of 0.2% formic acid water-acetonitrile(gradient elution)at the flow rate of 0.2 mL/min. The detection wavelength was set at 330 nm,and column temperature was 25 ℃. The ion source was electrospray ion source,and mass to charge ratio(m/z)was 50→1 000. In the positive and negative ion mode,the metabolic components of the total glycosides of C. deserticola in artificial gastric and intestinal juice were identified analysis,and combined with the literature,the metabolic pathway of total glycosides of C. deserticola in artificial gastric and intestinal juice was speculated. RESULTS:After the total glycosides of C. deserticola were metabolized by artificial gastric juice,and a total of 69 components were estimated,including 14 prototype components (such as Mustard aldehyde glucoside,daucosstorol) and 55 metabolic components (such as Methyl-O-Kankanoside J,Methyl-O-Kankanoside E),it is speculated that its metabolic pathways were methylation,demethylation,hydroxylation,methoxylation,acetylation,sulfation,and glucuronidation. After the total glycosides of C. deserticola were metabolized by artificial intestinal juice,a total of 90 components were estimated,including 4 prototype components(such as Kankanoside M,Kankanoside L)and 86 metabolic components(such as Methyl-O-Kankanoside, Methyl-O-Kankanoside E). It was speculated that its metabolic pathways were methylation, demethylation,hydroxylation,dehydroxylation,methoxylation,acetylation,sulfation and glucuronidation. CONCLUSIONS:This study preliminarily speculates that the total glycosides of C. deserticola may be metabolized by methylation,demethylation, hydroxylation and other metabolic pathway in artificial gastrointestinal juice,which may provide reference for the in vivo metabolic transformation of total glycosides of C. deserticola.
6.A scoring system for prediction of early recurrence after liver resection for Barcelona Clinic Liver Cancer stage B hepatocellular carcinoma.
Honggang QIAN ; Meng WEI ; Hui QIU ; Jianhui WU ; Bonan LIU ; Ang LYU ; Qiao LIU ; Chengpeng LI ; Jiahua LENG ; Ji ZHANG ; Chunyi HAO
Chinese Medical Journal 2014;127(24):4171-4176
BACKGROUNDThe management of Barcelona Clinic Liver Cancer (BCLC) stage B hepatocellular carcinoma (HCC) is controversial due to the early recurrence after curative hepatectomy, and many variables were related to the prognosis. The purpose of this study was to predict the tumor recurrence in early postoperative period of the patients with BCLC stage B HCC.
METHODSFrom January 2004 to January 2012, 104 patients with BCLC stage B HCC underwent hepatectomy. Clinicopathological factors and follow-up data were statistically analyzed to establish a predicting scoring system.
RESULTSThe overall survival rates for one, three, and five years were 69.2%, 52.7%, and 42.3%, and the disease-free survival rates for one, three, and five years were 52.9%, 47.3%, and 37.5%, respectively. The multiple factors analysis showed that the micro-vessel invasion, lymph nodes metastasis, multiple lesions, and the high expression of HMGB1 were independent factors (P < 0.05). A scoring system was established to predict the early recurrence within one year after the surgery for BCLC stage B HCC, according to the analysis results with a specificity of 85.1% and a sensitivity of 80.3%.
CONCLUSIONVariant clinicopathological factors were associated with early postoperative recurrence for BCLC stage B HCC and recurrence early after hepatectomy was more likely in patients with a higher score of the scoring system.
Carcinoma, Hepatocellular ; metabolism ; pathology ; surgery ; Disease-Free Survival ; Female ; HMGA1a Protein ; metabolism ; Hepatectomy ; Humans ; Liver Neoplasms ; metabolism ; pathology ; surgery ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Treatment Outcome