1.Prevention and treatment of diabetic retinopathy: progress, challenges and future prospects
Chinese Journal of Ocular Fundus Diseases 2012;28(3):209-214
Diabetic retinopathy (DR) is the leading causes of blindness in working-aged people,of which diabetic macular edema (DME) and proliferative diabetic retinopathy (PDR) are the two main causes of vision-threatening.Through the regular screening of patients with diabetes,the risk factors of DR can be identified and proper interventions can prevent the incidence of DR.Timely retinal laser photocoagulation and application of the renin-angiotensin system inhibitors (candesartan or fibrates),lipid-lowering drug fenofibrate can inhibit DR progress.Macula local and (or) grid pattern photocoagulation or in combination with bevacizumab intravitreal injection can effectively relief DME.In regard to late PDR,vitrectomy couldrestore or retain useful vision, importantly, minimally invasive 23G vitrectomy and preoperative bevacizumab intravitreal injection greatly improved the surgical outcomes.However DR pathogenesis is not entirely clear.Also there is a lack of effective and feasible DR screening strategy in China.Furthermore existing evidence-based data of medical and surgical treatment of DR is insufficient.Therefore,the DR prevention and treatment is still a long way to go in China.
2.Effect of salvia miltiorrhiza Bge on left ventricular hypertrophy and the expression of tumor necrosis factor-alpha in spontaneously hypertensive rats.
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(3):245-7
The effects of salvia miltiorrhiza Bge (SMB) on left ventricular hypertrophy (LVH) and the expression of tumor necrosis factor-alpha (TNF-alpha) in the left ventricle of spontaneously hypertensive rats and the action mechanism were investigated. Normal Wistar-kyoto (WKY) rats were used as negative control, and spontaneously hypertensive rats (SHR) were randomly assigned to receive placebo or SMB. SMB (1 g/kg.d) was injected intraperitoneally for 12 weeks. Systolic blood pressure (SBP) and left ventricular mass index (LVMI) were measured. HE, VG and immunohistochemical staining combined with computed morphometry were employed to evaluate the cardiomyocyte size, diameter, the collagen volume fraction (CVF), perivascular circumferential area (PVCA), and tumor necrosis factor-alpha (TNF-alpha) expression in the left ventricular tissue. The results showed, as compared with WKY rats, the SBP, LVMI, cardiomyocyte size, diameter, CVF, PCVA, and TNF-alpha expression were increased markedly in the 20-week-old spontaneously hypertensive rats. SMB decreased LVMI (P<0.01), size of cardiomyocytes (P<0.01), collagen volume fraction (P<0.01), perivascular circumferential area (P<0.01), and TNF-alpha expression (P<0.01), but had no effect on SBP (P>0.05). It was suggested that chronic administration of SMB could inhibit and reverse the development of LVH in spontaneously hypertensive rats independent of BP. TNF-alpha may be involved in the reversal mechanism of LVH by SMB.
3.The status and progress of relationship between dyslipidemia and diabetic retinopathy
Chinese Journal of Ocular Fundus Diseases 2016;32(2):210-212
Dyslipidemia plays an important role in the pathogenesis of diabetic retinopathy (DR).A preliminary study found that low-density lipoprotein cholesterol,apolipoprotein (Apo) B and Apo B / Apo A1 ratio were positively correlated with DR,while high-density lipoprotein cholesterol,Apo A1 was negatively correlated with DR and proliferative DR.Reducing the blood fats to be helpful to DR control.However,the mechanism of hyperlipidemia in the pathogenesis of DR,the reason of dyslipidemia in diabetic patients and the interaction between hyperglycemia and hyperlipidemia in DR are not clear yet.Moreover,there is no predictive indicators related to blood lipid for DR.Understanding the relationship between dyslipidemia and DR can provide definite evidence for fat-reducing therapy for DR control.
4.Exploration of microcosmic Chinese medicine used by western medicine.
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(2):133-136
"Microcosmic syndrome", "treatment based on syndrome differentiation", and "combination of disease identification and syndrome differentiation" generally refer to a mode: following the syndrome if with no disease identified, following the disease if with no syndrome type differentiated. For example, Chinese medical treatment of hypertension, high blood lipids, increased transaminase, and so on candirectly use Chinese recipes, but no longer with syndrome differentiation. Clinical application of Chinese patent medicine can also obtain favorable clinical. Western doctors need not follow syndrome differentiation. The invention of artemisinin was screened from more than 40 000 kinds of compounds and herbs, but with no reference of any traditional Chinese medical theory. A lot of folk remedy and empirical recipes have obtained effective efficacy but unnecessarily with profound Chinese medical theories. Various evidences showed that disease can also be cured without syndrome differentiation. I held that it might be associated with the same mechanism of Chinese medicine and Western medicine. Any disease can be cured or alleviated by Chinese medicine is a result from its modern pharmacological effect, which is achieved by improving etiologies, and pathogeneses. I was inspired by whether we can directly use traditional Chinese medicine with modern pharmacological effects to treat symptomatic disease. So I raised an idea of microcosmic Chinese medicine used by Western medicine, i.e., we find and use Chinese herbs with relatively effective modern pharmacological effect to treat diseases targeting at patients' clinical symptoms and signs, as well as various positive laboratory results (collectively called as microscopic dialectical indicators). More Western doctors would use it to treat disease due to omission of complicated and mysterious syndrome differentiation. This will promote extensive application and expansion of Chi- nese medicine and pharmacy, enlarge the team of integrative medicine, improve Western doctors' interest in Chinese medicine and pharmacy, thus pushing the career of integrative medicine in a brand new development era.
Asian Continental Ancestry Group
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Cell Differentiation
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Humans
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Hypertension
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Integrative Medicine
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Medicine
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Medicine, Chinese Traditional
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Medicine, Traditional
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Physicians
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Syndrome
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Transaminases
5.Practice of the people-oriented principle in hospital management
Chinese Journal of Hospital Administration 1996;0(02):-
The paper gives an account of the concept and significance of the people-oriented principle and explores its practice in hospital management,including adopting patient-centered humane management,intensifying job dedication,and enhancing the hospital's cohesive force and development potential.Patient-centered humane management includes adopting the system of no companions for the inpatients,respecting the patients and safeguarding their rights and interests,providing friendly and comfortable medical environments for the patients,managing in a scientific,rational and whole-course manner the diets of the patients,and offering quality medical services to the patients.
6.ANTAGONISM OF SELENIUM ENRICHED SPIRULINA PLATENSIS TO HEPATOCIRRHOSIS AND ITS MECHANISM
Acta Nutrimenta Sinica 1956;0(01):-
Objective: To explore the antagonism of selenium enriched Spirulina platensis(Se-SP) to hepatocirrhosis by enhancement of cell proliferation and selenoenzyme activity.Method: The male SD rat hepatocirrhosis model was induced by thioacetamide(TAA),and Se-SP was supplemented.Hepatic histological analysis was performed and relative content of collagen(RCC %) was estimated using IBAS 2000 system after Masson’s staining.Glutathione peroxidase(GSH-Px),thioredoxin reductases(TR) and malondialdehyde(MDA) in hepatocyte as well as hyaluronic acid(HA) in serum were determined.Expression index of proliferating cell nuclear antigen(PCNA) in hepatocytes was detected by immu-nohistochemistry,and the level of synthesis of DNA in regenerative hepatocytes was analyzed by radio-immunity for incorporation of 3H-TDR.Results: Hepatocirrhosis was induced by TAA at 9w of the expeiment,and the obvious antagonism of Se-SP to hepatocirrhosis was obsewed after Se-SP supplementa-tion.12.5% rats of Se-Sp group were completely recovered at 15w of the experiment(6w after withdrawal of TAA).GSH-Px and TR activity in hepatocytes as well as PCNA and 3H-TDR incorporation rate in hepatocytes were obviously enhanced(P
7.The Screening of Alcohol Dehydrogenase (ADH) Mutant of Rhizopus oryzae
Microbiology 1992;0(01):-
During L-lactic acid fermentation with Rhizopus oryzae,there existed a branch pathway by which pyruvate was transformed to eth- anol catalyzed by pyruvate decarboxylase(PDC)and alcohol dehydrogenase(ADH),thus decreasing the flux of pyruvate to lactic acid.In this study,the spores of Rhizopus oryzae AS3.3462 mutagenized with nitrosoguanidine(NTG),the appropriate dosage was 0.15 mg/mL and the lethal rate was 70%~80%.Two mutants,named mut-1 and mut-2,with decreased ADH activity were screened out by yeast peptone dextrose(YPD)agar medium containing allyl alcohol.These two mutants had decreased ADH activities of 41.63% and 50.29% compared with the parent strain.The fermentation behavior after 72h showed that the yields of ethanol produced by mut-1 and mut-2 were 4.87g/L and 6.56g/L respectively,while the wild type strain was 28.9g/L,and the lactate concentrations of mut-1 and mut-2 also increased from 40.31g/L to 54.45g/L and 44.07 g/L,respectively.It is also found that mut-1 and mut-2 had a high reducing sugar consumption rate and biomass accumulation than its present strain
8. Preparation of magnetic poly D, L-lactide-co-glycolide oxymatrine nanoparticles and their preventive effect against liver fibrosis in mice
Academic Journal of Second Military Medical University 2010;30(5):500-504
Objective:To prepare magnetic poly D, L-lactide-co-glycolide oxymatrine nanoparticle(M-PLGA-OM-NP) and investigate its preventive effects against experimental liver fibrosis. Methods: The M-PLGA-OM-NP was prepared by multiple emulsion process and observed by transmission electron microscope(TEM). Dimethylnitrosamine (DMN)-induced liver fibrosis was established with mice. After intervention with M-PLGA-OM-NP, the expression of α-smooth muscle actin (a-SMA) in the livers of mice was detected by immunohistochemical assay and the score of liver fibrosis was determined by H-E staining and Van Gieson (VG) staining. Results: The prepared M-PLGA-OM-NP was in a regular sphere shape, with a mean diameter of 146.5 nm; the drug loading was 7.61% and the encapsulation ratio was 44.8%. The serum Alt level in the M-PLGA-OM-NP group was decreased compared with that in the model group. Light microscopy revealed that the fibrosis in the M-PLGA-OM-NP group was greatly improved compared with the model group and pure oxymatrine group. The expression of a-SMA, the marker of hepatic stellate cell activation, was obviously decreased in the M-PLGA-OM-NP group compared with that in the other groups.Conclusion: The prepared M-PLGA OM-NP under magnetic field can reinforce the preventive effect of oxymatrine against DMNinduced experimental liver fibrosis in mice. Conclusion: The prepared M-PLGA-OM-NP under magnetic field can reinforce the preventive effect of oxymatrine against DMNinduced experimental liver fibrosis in mice.
9.Clinical Observation of Xuebijing Injection in the Treatment of Acute Non-ST Elevation Myocardial Infarc-tion
Zhi FU ; Haiying HU ; Mingkong ZHENG
China Pharmacy 2017;28(23):3257-3261
OBJECTIVE:To investigate the effects of Xuebijing injection on inflammatory factors,oxidation stress level and thrombosis risk in patients with acute non-ST elevation myocardial infarction(NSTEMI). METHODS:A total of 130 NSTEMI pa-tients selected from our hospital during May 2015-Aug. 2016 were divided into control group and observation group according to random number table,with 65 cases in each group. Control group was given routine treatment as lowering blood pressure,lower-ing lipid,anticoagulation and antiplatelet. Observation group was additionally given Xuebijing injection 50 mL,ivgtt,q12 h,on the basis of control group. Both groups were treated for a week. The levels of inflammatory cytokines(TNF-α ,IL-6,IL-10, hs-CRP),SOD,MDA,MMP-9,platelet aggregation rate and fibrinogen were observed in 2 groups before and after treatment. The treatment course,the occurrence of MACE and bleeding event were also recorded. RESULTS:Before treatment,there was no statistical significance in the levels of inflammatory factors,SOD,MDA,MMP-9,platelet aggregation rate or fibrinogen between 2 groups(P>0.05). After treatment,the levels of TNF-α,IL-6,hs-CRP,platelet aggregation rate or fibrinogen in 2 groups were decreased significantly,while the level of IL-10 was increased significantly;the improvement of above indexes in observation group was significantly better than control group. The levels of SOD and MMP-9 in 2 groups were increased significantly,while the level of MDA was decreased significantly. The level of SOD in observation group was significantly higher than control group, while the level of MDA was significantly lower than control group,but the level of MMP-9 was significantly lower than control group,with statistical significance (P<0.05). There was no statistical significance in the incidence of MACE (16.92% vs. 20.00%)or bleeding event(4.62% vs. 7.69%)between 2 groups(P>0.05). CONCLUSIONS:Xuebijing injection shows signifi-cant therapeutic efficacy for NSTEMI,effectively inhibits inflammation,and oxidative stress and reduces the risk of thrombosis with good safety.
10.Application of the Less Invasive Stabilization System in complex fractures around the knee joint
Mingchun WANG ; Zhi WANG ; Shiwei ZHENG
Chinese Journal of Minimally Invasive Surgery 2005;0(09):-
Objective To discuss curative effects of the AO Less Invasive Stabilization System(LISS) in the treatment of complex fractures around the knee joint.Methods The internal fixation at distal femur or proximal tibia was performed in 15 cases of closed complex fractures at the metaphysic area near the knee joint by using the LISS(left-sided in 9 cases and right-sided in 6 cases) from April 2004 to June 2005. Results All the 15 cases were followed for 5~26 months(mean,13.2 months).The time to full weight bearing was 12~26 weeks,and the time to bone union under X-ray was 11~24 weeks.No delayed union or disunion was observed.There were 1 case of superficial infection and 2 cases of skin blister,all of which were cured with dressing changes.No deep infection,skin necrosis,or osteofascial compartment syndrome occurred.Functional evaluation according to the Johner-Wruhs system revealed "excellent" results in 11 cases,"good" results in 3,and "fair" in 1,the total satisfactory rate being 93.3%(14/15).Palpable shift and separation inside tibia had occurred in 1 case of tibial plateau fracture(type C3) 2 weeks after operation,and a steel bar was inserted to fix the tibial plateau in a second operation.Bone union was achieved in this case 20 weeks after operation,with "good" evaluation results.Genu varum(tibial plateau angle,82?) had occurred in 1 case of tibial plateau fracture(type C3) 8 weeks after operation,and bone union was noted 20 weeks after operation,with "fair" evaluation results.Conclusions The LISS is indicated for fractures at distal femur or proximal tibia,or osteoporotic fractures of distal femoral shaft.For type C3 complex tibial plateau fracture,fixation with a steel bar on the entocondyle should be employed,rather than relying on the LISS.