1.A case of Rabson-Mendenhall syndrome.
Li MA ; Jian WANG ; Yuan-xun FANG
Chinese Journal of Pediatrics 2013;51(7):545-547
Acanthosis Nigricans
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diagnosis
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genetics
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pathology
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Adolescent
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Antigens, CD
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genetics
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Biomarkers
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blood
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DNA Mutational Analysis
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Donohue Syndrome
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diagnosis
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genetics
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pathology
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Humans
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Insulin Resistance
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genetics
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Male
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Mutation
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genetics
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Polymerase Chain Reaction
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Receptor, Insulin
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genetics
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Sequence Analysis, DNA
2.Application and Development of Catalytic Fluorimetry
Chinese Journal of Analytical Chemistry 2001;29(3):347-354
The application and development of catalytic fluorimetry in recent years were reviewed with 103 references. The new technique and application of catalytic fluorimetric methods, such as the determination of catalyst and activator, multicomponent determination, enzyme catalysis, the effect of micelle in multicomponent determination and enzyme catalysis, the combination with flow-injection or stopped-flow tachniques and laser induced fluorimetry, time resolved fluorimetry, bioreactor control, biosensor, medicine assay, bioanalysis were mainly discussed. Future study was envisioned
3.Preliminary study on pharmacodynamic evaluation method of Houpo formula particles.
Lu MA ; Li-Jie SHAO ; Fang TANG
China Journal of Chinese Materia Medica 2014;39(8):1490-1494
To discuss the feasibility of the pharmacodynamic evaluation method for traditional Chinese medicine (TCM) formula particles, with traditional decoction for reference and the intervention of Magnoliae Officinalis Cortex in rats with ulcerative colitis (UC). First of all, the similarity of traditional Magnoliae Officinalis Cortex decoction and formula particles of different manufacturers was defined by using the IR fingerprint. The UC rat model was established and given Houpo formula particles of different doses and manufacturers, with the decoction for reference, in order to observe disease activity index (DAI), colon mucosa damage index (CMDI), pathologic changes, nitric oxide (NO), endothdin (ET), substance P, vasoactive intestinal peptide (VIP). Their intervention effects on UC rats were compared to study the difference between Sanjiu and Tianjiang Houpo formula particles, in order to demonstrate the feasibility of the pharmacodynamic evaluation method for Houpo formula particles. According to the results, Houpo formula particles showed similar pharmacodynamic actions with the traditional decoction. The pharmacodynamic comparison of Houpo formula particles of different manufacturers showed no statistical significance. The experiment showed that on the basis of the TCM compounds, a prescription dismantlement study was conducted to define target points of various drugs. The traditional decoction was selected for reference in the comparison of corresponding formula particles for their pharmacodynamic equivalence. This method could avoid controversies about single or combined boiling of formula particles, and give objective comments on the pharmacodynamic effect of the formula particles. The method is proved to be feasible.
Animals
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Chemistry, Pharmaceutical
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methods
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Colitis, Ulcerative
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drug therapy
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metabolism
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Dosage Forms
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Drug Evaluation, Preclinical
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Drugs, Chinese Herbal
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adverse effects
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chemistry
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pharmacokinetics
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Humans
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Magnolia
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chemistry
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Male
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Rats
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Rats, Wistar
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Substance P
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metabolism
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Vasoactive Intestinal Peptide
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metabolism
4.Effectiveness and safety of simvastatin combined ezetimibe treating acute coronary syndrome
Xibo FANG ; Huaiying MA ; Huixin LI
Chinese Journal of cardiovascular Rehabilitation Medicine 2015;24(1):65-68
Objective:To explore the effectiveness and safety of simvastatin combined ezetimibe in patients with acute coronary syndrome (ACS).Methods:A total of 124 ACS patients complicated low density lipoprotein cholesterol (LDL-C)>100 mg/dl were selected from our hospital from May 2012 to May 2013. They were randomly and equal-ly divided into rosuvastatin group (received rosuvastatin 20mg/d)and combined treatment group (received simvasta-tin 40mg/d plus ezetimibe 10mg/d),both groups were treated for one month.Blood lipid levels and incidence rates of adverse reactions were observed in two groups.Results:Compared with before treatment,after one-month treat-ment there were significant reductions in levels of LDL-C,total cholesterol (TC)and triglyceride (TG)and signifi-cant rise in levels of high density lipoprotein cholesterol (HDL-C)in both groups (P <0.01 all),and there were no significant difference in all above blood lipid levels between two groups (P >0.05).Incidence rate of myalgia in combined treatment group was significantly lower than that of rosuvastatin group (4.8% vs.17.7%,P =0.023), but there were no significant difference in incidence rates of other adverse reactions between two groups (P >0.05 all).Conclusion:It′s effective and safe to use simvastatin combined ezetimibe in patients with acute coronary syn-drome,which is worthy extending.
5.Effect of general anesthesia combined with epidural anesthesia on tissue perfusion and intestinal barrier in elderly colorectal cancer patients undergoing radical resection
Songmei MA ; Li KONG ; Chuanqi FANG
Chinese Journal of Geriatrics 2021;40(1):102-106
Objective:To investigate the effect of the combined general and epidural anesthesia on tissue perfusion and intestinal barrier in elderly patients undergoing radical resection of colorectal cancer.Methods:A total of 118 elderly patients with colorectal cancer admitted to our hospital from January 2018 to September 2019 were randomly divided into two groups: a single general anesthesia(control, n=59)and combined general and epidural anesthesia(observation, n=59). Two groups underwent radical resection of colorectal cancer.The perioperative parameters were compared between the two groups, including tissue perfusion[central venous-to-arterial carbon dioxide difference(Pcv-aCO 2), oxygen delivery index(DO 2I), oxygen consumption index(VO 2I), difference between central venous and arterial lactate(Dcv-aLac), oxygen extraction rate(O 2ER), central venous oxygen saturation(ScvO 2)], and intestinal barrier[diamine oxidase(DAO), D-lactic acid(D-Lac)]. Results:Compared with the control group, the ScvO 2 during T2-T4 periods was increased in the observation group, and the VO 2I, Dcv-aLac and Pcv-aCO 2 during T1-T4 periods were reduced in observation group( P<0.05). The DO 2I during T1-T4 periods was slightly higher in the observation group than in the control group, and the O 2ER was slightly lower in the observation group than in the control group, but the differences were not statistically significant, ( P>0.05). In the both two groups, the D-Lac and DAO levels showed a gradual upward trend during T1-T5 periods and a gradual downward trend during T5-T6 periods.The D-Lac and DAO levels during T2-T6 periods were lower in observation group than in the control group( P<0.05)[during abdominal exploration(T1); invitrolesion(T2); before abdominal closure(T3); after surgery(T4); postoperative day 1(T5); postoperative day 3(T6)]. Conclusions:General anesthesia combined with epidural anesthesia in elderly colorectal cancer patients undergoing radical resection can stabilize perioperative tissue perfusion, decrease intestinal barrier injury and increase anesthetic effect.
6.Advance in Research of Nucleus Pulposus Tissue Engineering (review)
Zhouyong MA ; Fang LI ; Yuli CHANG
Chinese Journal of Rehabilitation Theory and Practice 2007;13(12):1144-1146
Disc degeneration is a substantial clinical problem. Disc degeneration begins with a loss of disc cells and alterations in the extracellular matrix of the nucleus pulposus (NP) cells. Recently, as the molecular basis of disc degeneration becomes increasingly understood, various biologic strategies to repair or regenerate the degenerative disc have been suggested. One promising approach for this problem involves the use of tissue engineering to regenerate the degenerative disc for achieving functional tissue repair. The authors reviewed the main progress of the NP tissue engineering from cells, scaffolds, growth factor.
7.Effect of theaflavin on intracellular free calcium concentration in rat ventricular myocytes
Huijie MA ; Huijuan MA ; Qian LI ; Fang YUAN ; Yi ZHANG
Chinese Pharmacological Bulletin 2003;0(08):-
Aim To observe the effects of theaflavin on intracellular calcium concentration(i) level in rat ventricular myocytes and discuss the possible mechanisms.Methods The effects of theaflavin oni were investigated in rat ventricular myocytes.i was detected by laser confocal microscopy and represented by relative fluorescent intensity(FI-FI0)/FI0,%;FI0:control;FI:administration of drugs).Results ① Theaflavin(10,20,40 ?mol?L-1) had no effect on the i of ventricular myocytes in normal Tyrode′s solution.However,it reduced the i of ventricular myocytes in simulated ischemia solution in a concentration-dependent manner.② Pretreatment with Bay k8644(0.5 ?mol?L-1) mostly abolished the effects of theaflavin(20 ?mol?L-1) in simulated ischemia solution.③ Theaflavin(20 ?mol?L-1) markedly inhibited the low concentration of ryanodine-induced i increase in Ca2+-free Tyrode′s solution.④ When the propagating waves of elevated i(Ca2+ waves) were produced by increasing extracellular Ca2+ concentration from 1 mmol?L-1to 10 mmol?L-1,theaflavin(20 ?mol?L-1) could block the propagating waves of elevated i(Ca2+ waves),reduce the frequency and duration of propagating waves,and reduce i as well.Conclusion Theaflavin may reduce the i in isolated rat ventricular myocytes via inhibiting Ca2+ influx by voltage-dependent Ca2+ channel and alleviating Ca2+ release from sarcoplasmic reticulum(SR).
9.Activities of quality control circle in Library of Shanghai Public Health Clinical Center
Fang FANG ; Ling LI ; Min HUANG ; Jiantao PENG ; Jiaojing CHEN ; Fang MA
Chinese Journal of Medical Library and Information Science 2015;(11):52-56
After the activities of quality control circle in Library of Shanghai Public Health Clinical Center were summarized, the use of electronic resources in staff of Shanghai Public Health Clinical Center and related problems were analyzed with suggestions put forward for optimizing and effectively using its electronic resources, and impro-ving its management level.
10.Effect of allo-human bone marrow mesenchymal stem cells on T and B cells from patients with rheumatoid arthritis in vitro
Lihui MA ; Xiaofeng LI ; Zhenhua QIAO ; Zhizhen LIU ; Fang LI
Chinese Journal of Rheumatology 2009;13(6):386-389
Objective To study the effect of allo-human bone marrow mesenchymal stem cells (BMSCs) on T and B cells from patients with Rheumatoid arthritis (RA) in vitro. Methods BMSCs were isolated from bone marrow samples of healthy volunteers and purified by density gradient centrifugation and cultured in vitro. Peripheral lymphocytes were isolated from patients with RA.Then, BMSCs and lymphpcutes were co-cultured. The modulatory effect of BMSCs on proliferation, activation and maturation of T and B lymphocytes of RA patients stimulated by PHA and SAC respectively was observed. The cell generation cycle and the degree of apoptosis were assessed by flow cytometry with PI/ Annexin V. After co-cultured with or without BMSCs for 72 hours, T cells were harvested, then they were labeled with anti-CD3, anti-CD4, anti-CD8, anti-CD25 antibodies and analyzed by flow cytometry. The density of IgG in the co-culture system was detected by ELISA. Results T and B cells proliferation was significantly suppressed when co-cuhured with bMSCs but did not induce T cell apoptosis. There was a significant decrease in the ratio of CD4+ CD3+ T cells in the co-cuhure group (34±6), as compared with the control group (44±7) (P<0.05). There was a decrease in CD25+ T cells and increase of CD4+ CD25+ cells in BMSCs co-cultured group (P<0.05). IgG was in creased in the cocuhure system. Conclusion Human BMSCs inhibit T and B cell activation and proliferation in patients with RA in vitro. And these immunomodulatory effects are not MHC restricted. The results of this study have provided evidence for the fact that BMSCs has the potential to be an effective treatment for RA.