1.Effects of Big Black Ant and Its Compound Preparations on the RNA and DNA Levels in Testes of Rats
Chinese Traditional and Herbal Drugs 1994;0(08):-
80 male Wistar mice were randomly divided into 8 groups. The effects of the big black Ant preparations (alias Xuanju ) obtained in different ways and their compound preparations in different dosages on the amount of RNA and DNA in the testes of mice were observed. After administration of the preparations for 21 days, the mice were decapitated and the testes were excised and weighed. The RNA and DNA in the testes were isolated andpurified with the method of SDS- phenol and their amounts were measured with UV-VIS spectrophotometry. The results showed that the mean testes weight in the experimental groups was significantly higher than that in the control group (P
2.The etiology of deep venous thrombosis in the lower extremities and its synthetic therapies
Journal of Interventional Radiology 2001;0(06):-
Deep venous thrombosis in the lower extremities is a very common disease clinically and can greatly affect people in their work and life without proper treatment promptly.The author reviewed the etiology,diagnosis,preventive measures and the synthetic therapies for dealing the deep venous thrombosis in the lower extremities,especially concerning the interventional radiology.
3.Impact study of basic medical research based on web of science
Chinese Journal of Medical Science Research Management 2015;28(1):106-111,115
Based on ESI web of science,the article analyzed papers published by three Medical Schools from 2001 to 2012 in terms of volume of publication,cited times,discipline distribution,au thors and cooperation,and determined each factor's impact on research output and performance.Sug gestions and advice were given to enhance the overall basic medical science research level.
4.Establishment and characteristics of chronic pulmonary arterial hypertension rat models subjected to left-to-right shunting
Jianchun WANG ; Qianjing ZHONG
Chinese Journal of Tissue Engineering Research 2009;13(41):8183-8186
BACKGROUND: A left-to-right shunting animal model is needed to study chronic pulmonary vascular remodeling of congenital heart attachment disease in adult.OBJECTIVE: To observe the characteristics of chronic pulmonary arterial hypertension in rat models subjected to left-to-right shunting.DESIGN, TIME AND SETTING: Randomized controlled animal modeling observation was performed in Experimental Animal Center, Xinqiao Hospital, the Third Military Medical University of Chinese PLA from April 2008 to April 2009.MATERIALS: A total of 80 male inbred line healthy SD rats of specified-pathogens free class, 4 weeks old, weighing 95-110 g, were randomly assigned into control group (n=40) and shunt operation group (n=40). A shrinking polyethylene blood vessel connector (proximal part inner diameter was 0.6 mm and outer diameter was 0.8 mm, while distal part's was 0.8 mm and 1.0 mm, respectively, 1.6 mm long), was applied.METHODS: Shunt operation group underwent left-to-right shunting through right common carotid artery and external jugular vein connected by shrinking polyethylene blood vessel connector. Control group underwent sham operation. At 4, 8, 12 and 16 weeks postoperation, ten models were determined with a series in procedures: hemodynamics detection, pathological sample preparation, hematoxylin-eosin staining, imaging analysis and so on.MAIN OUTCOME MEASURES: Changes in right ventricular systolic pressure, right ventricular hypertrophy index of right ventricle to left ventricle plus interventricular septum, and relative medial wall thickness in moderate sized pulmonary arteries in rats of shunt group and control group.RESULTS: All animal were survived. The pulmonary blood flow in shunt group was significantly higher than control groups (P<0.01). Compared with control group, right ventricular systolic pressure elevated obviously and right ventricular hypertrophy index were significantly higher in shunt group at 12 and 16 weeks (P<0.01). Compared with control group, the relative medial wall thickness in pulmonary arteries also elevated obviously in shunt group at 12 and 16 weeks (P<0.01).CONCLUSION: Left-to-right continuous low-flow shunt in rats can induced right ventricle accommodated with the change of right ventricular systolic pressure and promote chronic pulmonary arterial remodeling continuously. The procedure of establishing left-to-right shunting models with common carotid artery and external jugular vein connection, is a stable tool for studying chronic pulmonary arterial hypertension induced by low flow.
5.Clinical and genetic features of DYT1 and DYT5
Journal of Peking University(Health Sciences) 2006;38(1):107-109
Dystonia is a syndrome which is characterized by sustained muscle contractions, producing twisting, repetitive, and patterned movements, or abnormal postures. According to genetic basis, dystonia is classified into 13 subtypes. We mainly discussed two subtypes, DYT1 and DYT5, in this review. Early-onset primary dystonia is caused by the mutation of DYT1 gene, which leads to TORSINA abnormal. GTP cyclohydrolase 1 (GTPCH1)-deficient DRD(DYT5) is caused by the mutations of GCH1 gene. By genetic testing, we can confirm clinical diagnosis of each subtype and develop prenatal diagnosis for it.
6.Effects of safflower oil on adipose-associated gene expression in mice
Chinese Journal of Endocrinology and Metabolism 2012;28(1):76-78
Seventy C57BL/6 mice were divided into control group,lard group,lard transferred into safflower oil group,and safflower oil group.After 20 weeks,the white adipose tissues were taken to analyse the gene differentiational expression prolife.The results showed that body weight,blood glucose and lipids,and insulin levels in lard group were higher than those in control group( all P<0.05 ),which were decreased after lard was transferred into safflower oil for 10 weeks( all P<0.05 ).Safflower oil regulated some of the orexigenic genes,anorectic genes,and the genes involved in energy expenditure in adipose tissues such as opioid receptor,glucagon,and PPARα.
8.The expression and function of potassium channel in microglia
Chongbo ZHONG ; Xiaoliang WANG ;
Chinese Pharmacological Bulletin 1986;0(06):-
Microglia are immunocells in the brain and play key roles in the chronic inflammation of Alzheimers disease. Potassium channels are the important pathway for the microglia response to thechanges of microcircumtance in the brain. And the changes of potassium channels are the important marker of the activated microglia. The potassium channels are involved in the normal and pathological functions of microglia such as maintaining the membrane potential, proliferation, ramification, and the respiratory burst.
9.Clinical Application of Total Extraperitoneal Inguinal Hernia Repair Under Two Laparoscopes
Chinese Journal of Minimally Invasive Surgery 2017;17(6):524-526
Objective To study the feasibility and the efficacy of total extraperitoneal repair (TEP) under two laparoscopes.Methods Clinical data of 51 patients with inguinal hernia who underwent TEP under two laparoscopes from July 2015 to March 2016 in our hospital were analyzed retrospectively.During TEP,we added a 5-mm laparoscope for monitoring and exploration in the abdominal cavity.Results All the operations of TEP under two laparoscopes were successful.The operation time lasted 42-176 min with a mean of (74 ±27) min.The intraoperative blood loss was 5-30 ml with a mean of (12.8 ±5.9) ml.The length of postoperative hospital stay was 2-7 days with a mean of (4.0 ± 1.1) days.The percentage of postoperative complications was 11.8% (6/51),including inguinal area seroma which accounted for 2.0% (1/51),inguinal region pain accounting for 3.9% (2/51),and postoperative urinary retention for 5.9% (3/51).No infection was found.The follow-up period ranged from 3 to 11 months (mean,7 months),no recurrence was observed during this period.Conclusions TEP under two laparoscopes can treat inguinal hernia precisely.It is also helpful to find compound inguinal hernia and occult inguinal hernia.
10.Investigation on the clinical characteristics and risk factors for chronic complications in hospitalized early-onset type 2 diabetic mellitus patients
Chinese Journal of Postgraduates of Medicine 2017;40(9):769-773
Objective To investigate the clinical characteristics and the risk factors for chronic complications in hospitalized early-onset type 2 diabetic mellitus patients. Methods The clinical data of 462 hospitalized type 2 diabetic mellitus patients were retrospectively analyzed. The patients were divided into early-onset group (age of diagnosis ≤40 years, 120 cases) and late-onset group (age of diagnosis>40 years, 342 cases) according to the age of diagnosis of diabetes. The clinical characteristics were compared and risk factors for chronic complications of early-onset type 2 diabetes were explored. Results The percentage of family history of diabetes, fasting plasma glucose, triglyceride and diastolic blood pressure in early-onset group were significantly higher than those in late-onset group:70.0%(84/120) vs. 52.3%(179/342), (8.68 ± 3.08) mmol/L vs. (8.07 ± 2.74) mmol/L, 1.69 (1.06, 2.92) mmol/L vs. 1.48 (1.07, 2.24) mmol/L and (84 ± 10) mmHg (1 mmHg = 0.133 kPa) vs. (81 ± 10) mmHg, and there were statistical differences (P<0.01 or <0.05). The incidence of hypertension, systolic blood pressure and 2h C-peptide in early-onset group were significantly lower than those in late-onset group: 44.2%(53/120) vs. 60.2% (206/342), (134 ± 17) mmHg vs. (138 ± 18) mmHg and (3.99 ± 2.47) μg/L vs. (4.75 ± 2.65) μg/L, and there were statistical differences (P<0.01 or < 0.05). There were no statistical differences in smoking percentage, body mass index, glycated hemoglobin, total cholesterol, low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) between 2 groups (P>0.05). The incidences of peripheral vasculopathy and cerebrovascular disease in early-onset group were significantly lower than those in late-onset group:13.3%(16/120) vs. 24.3%(83/342) and 11.7%(14/120) vs. 22.8%(78/342), but the incidence of diabetic nephropathy was significantly higher than that in late-onset group: 37.5% (45/120) vs. 27.8% (95/342), and there were statistical differences (P<0.05 or <0.01). There were no statistical differences in incidences of coronary heart disease, diabetic retinopathy and diabetic neuropathy between 2 groups (P>0.05). Multivariate Logistic stepwise regression analysis result showed that age, duration of diabetes, hypertension, smoking, levels of glycated hemoglobin and triglyceride were the risk factors for chronic complications in early-onset type 2 diabetic mellitus patients. Conclusions The clinical characteristics are different between early-onset and late-onset type 2 diabetic mellitus patients. Early-onset patients are more prone to diabetic nephropathy, while late-onset patients are prone to macrovascular diseases such as peripheral vascular disease and cerebrovascular disease. Comprehensive management should be administered for early-onset type 2 diabetic mellitus patients to prevent chronic complications especially microvascular complications.