1.Post-transcription regulation of drug metabolic enzymes by miRNAs
Pei WANG ; Xiaotian LI ; Lirong ZHANG
Chinese Pharmacological Bulletin 2015;(8):1037-1039,1040
microRNAs ( miRNAs) are a family of short non-cod-ing RNAs that regulate the expression of target genes by binding to complementary regions. The miRNAs expression is readily al-tered by drugs, carcinogens, hormones, stress or diseases, and that might lead to changes in the drug metabolism, pharmacoki-netics or potency. Moreover, the evaluation of drug metabolic enzyme-related miRNAs would provide useful information for per-sonalized medicine. This review describes the current knowledge on the post-transcription regulation of drug metabolic enzymes by miRNAs.
2.Gene targeting diagnosis and treatment in cancer
Yabing ZHENG ; Lin WANG ; Xiaotian CHANG
Journal of International Oncology 2012;39(3):186-189
With the development and clinical use of the molecular targeted drugs and individualized treatment,cancer research has been focused on gene targeting diagnosis and treatment.Especially for the epidermal growth factor receptor (EGFR) signaling pathway-related genes,DNA replication-related genes,spindle apparatus format-related genes,cell metabolism-related genes and other molecular targeted detection and treatment,the polymorphism of targeting genes/molecules determines the clinical efficiency of the therapies.
3.Explore the construction of sub-health management platform in Shuguan hospital
Linru WANG ; Junxin QIU ; Xiaotian ZHANG
International Journal of Traditional Chinese Medicine 2017;39(5):391-393
Sub-health status in the occupational population showed high incidence. Thus, it is necessary to improve the occupational groups of sub-health status, improve the health level of occupational groups. Shanghai university of traditional Chinese medicine Shuguang hospital treatment center (hereinafter referred to as disease prevention center), based on traditional Chinese medicine disease theory, did a lot of practices on occupational sub-health groups with Chinese medicine prevention and health care. Since 2014, three-year commitment to the Shanghai action plan project, the hospital has constructed a sub-health platform. This article discussed the experience of construction of sub-health platform for the construction of sub-health management system with Chinese characteristics and provided reference for the construction of sub-health management model.
4.Effects of radix salviae miltiorrhizae (RSM) on MAPK pathway in hepatic stellate cells (HSCs)
Xiaotian LI ; Shuliang YANG ; Junmin WANG
Medical Journal of Chinese People's Liberation Army 1982;0(01):-
Objective To observe two main subtypes of MAPK family-ERK and JNK activation in HSCs and investigate the effects of the serum of Radix Salviae Militiorrhizae treated animals on the activation of ERK and JNK in HSCs. Methods HSCs were cultured in vitro. After the model of hepatic fibrosis was replicated in SD rats, Radix Salviae Militiorrhizae decoction was given via gastrogavage to the rats of treatment groups to obtain serum containing the drug. The dose was 10 times of dose per kg per day for adults in 2 divided doses for 6 consecutive days, while the same volume of 0.9% NaCl was given to the rats of non-treatment groups. on the 7th day, the routine dose was orally given again; the blood sample was drawn from the vena cava after 2 hour; the serum was isolated and inactivated with water bath at 56℃; finally, the serum was filtered to eliminate bacteria. Just before using the serum, RPMI-1640 culture medium was added to prepare culture media of 10% drug-containing serum, which was incubated with the subcultured HSCs. The experiment was divided into the following groups: A: serum of extracted from normal rats; B: medicated serum of RSM extracted from normal rats; C: serum from CCl_4-induced liver fibrosis rats; D: medicated serum of RSM extracted from CCl_4-induced liver fibrosis rats.After 24h incubation with above every group serum which were added blindly to HSCs, P-ERK and P-JNK were detected by Western blot respectively. Results Both RSM Pharmacological serums decreased P-ERK and P-JNK in HSCs significantly compared with controls (P
5.Effects of Periconceptional Folate Intake and Methylenetetrahydrofolate Reduetase Gene C667T Polymorphism of Pregnant Women on Congenital Heart Diseases in Offspring
Ting PENG ; Xiaotian LI ; Li WANG
Journal of Environment and Health 2007;0(08):-
Objective To explore the environmental risk factors,periconceptional folate intake and methylenetetrahydrofolate reduetase(MTHFR) gene C667T polymorphism of pregnant women on congenital heart diseases(CHD) in offspring.Methods Retrospective case-control study was carried out to investigate periconceptional folate supplementation and environmental factors in 98 parents with CHD offsprings and 101 parents with normal offsprings.The mothers'MTHFR gene C667T mutation was also identified.The possible risk factors were analyzed by simple and multiple factors Logistic regression methods.Results Six factors were related to the occurrence of CHD in the offspring:education of gestation mother,no prenatal examination,under depressed or nervous condition during pregnancy and maternal exposures to harmful substance;periconceptional folate and compound vitamin supplementation were protection factors.There were significant difference between case and control group in folate supplement(P
6.Drug-induced liver injury:metabolic and genetic basis
Shujie WANG ; Pei WANG ; Xiaotian LI ; Lirong ZHANG
Chinese Pharmacological Bulletin 2016;32(7):898-901,902
Drug-induced liver injury ( DILI) is a significant rea-son of acute liver failure and is the main cause of therapeutic drugs withdrawal from the market .Multiple mechanisms can cul-minate in DILI , but metabolism and genetics play distinct roles in this process .This review will cover papers we consider have addressed these mechanisms of DILI in commonly used medica-tions for adults , and discuss the hot issues .The aim is to gener-ate discussion about the potential clinical significance among these researchs and point out the key areas for further study of DILI.
7.Studies on pharmacokinetics of guanfu base I,a metabolite of guanfu base A
Xiaotian LI ; Guangji WANG ; Sujun WANG ; Jinghan LIU
Chinese Pharmacological Bulletin 1987;0(03):-
Aim To establish an analytical method for determination of guanfu base I (GFI) concentration in plasma and investigate its pharmacokinetics in rats. Methods Rats were given a 20 mg?kg~-1 dose intravenously. Blood samples were collected at various times after iv administration. The plasma concentration of GFI was determined by LC-MS. Pharmacokinetic parameters were calculated by 3p97 program.Results The method was linear in the 0.05~20 mg?L~-1 concentration range (r=~0.999 4 ). The recovery of guanfu base I was more than 80%.The intraday and interday precision, expressed as the relative standard deviation (RSD), was generally good (
8.Postoperative complications of endovascular repair of abdominal aortic aneurysms in poor-risk patients
Can CHENG ; Hejie HU ; Xiaotian WANG ; Zhengdong FANG
Chinese Journal of General Surgery 2015;30(3):231-234
Objective To review the complications after endovascular aneurysm repair (EVAR) of high-risk abdominal aortic aneurysms in our medical center.Methods Fifty eight elective high-risk EVAR cases from January 2008 to December 2013 were analyzed retrospectively.Results The technical success rate was 96.6% (56 of 58 patients).The overall complication rate in perioperative period was 32.8% (19/58).Eleven systemic complications (19.0%),16 primary endoleaks (27.6%),7 access of site complications(12.1%) were observed.The follow-up rate was 86.2% (51/58).During the follow up period,the mortality was 7.8% (4/51),the re-intervention rate was 7.8% (4/51).The overall complication rate was 29.4% (15/51),including systemic complications (2/51),secondary endoleak (9.8%) and graft-related complications (11.8%,6/51).Conclusions Endoleak,graft-related complications continue to be the main causes of re-intervention in high-risk aneurysm patients after EVAR.
9.Natural changes of maternal thyroid function among women with subclinical thyroid dysfunction and euthyroid women during pregnancy
Chunfang WANG ; Huan XU ; Xiaotian LI ; Haidong CHENG ; Xiaoyan LIU
Chinese Journal of Perinatal Medicine 2014;17(10):689-695
Objective To analyze the natural changes of maternal thyroid function among women with subclinical thyroid dysfunction and euthyroid women during pregnancy.Methods A total of 4 042 singleton pregnant women received routine antenatal care in the Obstetrics and Gynecology Hospital of Fudan University between April and November 2012 were enrolled.Thyroid-stimulatinghormones (TSH),freetriiodothyronine (FT3) and free thyroxine (FT4) of 7 136 samples from 4 042 singleton pregnant women were tested at 8-12+6,13-19+6,20-27+6,and 28-40 weeks of gestation and were used to establish the normal gestationalspecific reference values of thyroid function.Among 3 895 women having thyroid function tested at 8-19+6 weeks of gestation with negative thyroid antibodies,there were 93 cases of subclinical hyperthyroidism,91 cases of subclinical hypothyroidism (SCH),three cases of hyperthyroidism and 3 708 cases euthyroid.There were 1 118 women [1 607 euthyroid cases,17 cases of subclinical hypothyroidism (SCH) and 34 cases of subclinical hyperthyroidism] had thyroid function retested at 20-27+6 and 28-40 weeks of gestation,and without medicinal intervention.Analysis of variance and LSD test were used to analyze the changes of maternal thyroid function.Results (1) The reference ranges of TSH at 8-12+6,13-19+6,20 27+6 and 28-40 weeks of gestation [median (Pz5-P97.5)] were 1.32 (0.03-4.17),1.83 (0.19-4.94),2.27 (0.70-5.42) and 2.34 (0.63-5.52) mU/L respectively.(2) Without medicinal intervention,thyroid function became normal in 80% (45/56) SCH women at 20-27+6 weeks,but 20% (9/45) of them developed SCH again at 28-40 weeks.The thyroid function became normal in 75% (70/93) women with subclinical hyperthyroidism at 20-27+6 weeks,but in 15% (14/93) of them,thyroid function remained abnormal at 28-40 weeks.9.40% (30/319) and 6.25% (21/336) euthyroid women with TSH ≥ 3 mU/L at 8-19+6 weeks of gestation developed SCH at 20-27+6 weeks and 28-40 weeks,while 0.42% (5/1 202) and 0.86% (10/1 163) euthyroid women with TSH <3 mU/L had SCH.1.66% (20/1 202) and 1.98% (23/1 163) euthyroid women with TSH<3 mU/L at 8-19+6 weeks of gestation developed subclinical hyperthyroidism at 20-27+6 weeks and 28-40 weeks of gestation.(3) In comparison between 8-19+6 weeks and 20-27+6 weeks of gestation,TSH levels increased by (0.47±0.03) mU/L in euthyroid women,and more significantly in subclinical hyperthyroidism women [(0.82±0.06) mU/L],but decreased by (1.67±0.25) mU/L in SCH women (LSD test,all P<0.05).The FT3 levels decreased by (0.47±0.02) pmol/L in euthyroid women,and more significantly in subclinical hyperthyroidism and SCH groups [(1.02± 0.18) and (0.72±0.08) pmol/L,LSD test,all P<0.05].FT4 decreased by (2.31 ±0.04) pmol/L in euthyroid women,and more significanly in subclinical hyperthyroidism women [(4.63± 0.62) pmol/L] (LSD test,P<0.05),but the decrement in SCH group [(1.78±0.28) pmol/L] was similar to euthyroid women (LSD test,P>0.05).There were no significant differences in changes of TSH,FT3 and FT4 at 20-27+6 weeks and 28-40 weeks among euthyroid women,SCH and subclinical hyperthyroidism groups (F=1.01,1.14 and 2.04,all P>0.05).Conclusions Women with subclinical thyroid dysfunction with negative thyroid antibodies experience significantly different natural changes when compared with euthyroid women,especially before 28 weeks of gestation.
10.The expression of TXNDC5 in synovial membranes, synovial fluid and blood of patients with rheumatoid arthritis
Yan ZHAO ; Xiaotian CHANG ; Xinfeng YAN ; Yunzhong ZHANG ; Lin WANG
Chinese Journal of Rheumatology 2010;14(3):173-176,后插2
Objective To investigate the expression of thiredoxin domain containing 5 (TXNDC5) in the synovial tissues and blood samples of various arthritic conditions and autoimmune diseases to further confirm the previous findings, investigate the relations between the expression level of TXNDC5 and clinical parameters of RA. Methods The expression of TXNDC5 in the synovium was quantitatively analyzed by immunohistochemistry, real-time quantitative PCR and Western blotting. The levels of TXNDC5 in blood and synovial fluid was determined using sandwich ELISA in patients with RA, osteoarthritis (OA), systemic lupus erythematosus (SLE), ankylosing spondylitis (AS) and normal controls. One-way ANOVA, LSD test and Spearmen' s correlation were used for statistical analysis. Results Immunohistochemistry indicated that TXNDC5 expression was significantly higher in the synovial tissues of RA (100%, 40±9) than in those of OA and AS(200%,4±4). Real time PCR and western blotting confirmed the above findings (P<0.01). Sandwich-ELISA indicated significantly elevated level of TXNDC5 in the blood and synovial fluid of patients with RA (A=1.31±0.37), but not in those of OA, SLE, and AS, the healthy controls (P<0.01). The level of TXNDC5 in the blood of RA patients (A=0.8185±0.299) was positively correlated with the level of anti-CCP (r=0.350, P =0.027). Conclusion The results suggest that the pronounced increase of TXNDC5 expression may stimulate synovial pannus formation in the hypoxic environment of RA.