Animals ; Humans ; Liver Diseases ; Thyroid Diseases

More and more studies suggest that endocrine-metabolic diseases and liver diseases influence each other. Endocrine-metabolic diseases may lead to abnormal liver function, and liver diseases are found also to cause disturbance of endocrine-metabolic system.

Thyroid diseases are often accompanied with dyslipidemia.In me past,low level of myroid hormone(TH) was considered a main factor in causing elevated level of blood cholesterol in hypothyroid patients.However,some clinical features can not be explained by this traditional theory. For example,in subclinical hypothyroid cases,both levels of thyroid-stimulating hormone (TSH) and serum total cholesterol (TC) increase,while TH level remains normal.From this phenomenon,we speculate that in case with hypothyroidism,not only there is a relationship between serum TC and TH levels,but also serum TC level change is related to TSH in some way,which has not been noticed.The purpose of this paper is to review the new and most advanced progress in the research of TSH and cholesterol.

Objective To observe the protective effects of AG on the myocardial ultrastructure of diabetic rats.Methods STZ-induced diabetic male SD rats were divided into two groups: aminoguanidine(AG group,50 mg?kg~(-1) body weight by daily gavage) and diabetes mellitus groups(DM group).Age-matched normal male SD rats served as normal control(NC group).After 10 weeks of treatment the level of blood glucose was measured and the rats were killed.Cardiac muscle were observed by transmission electronic microscope.Results The changes of cardiac ultrastructure had no significant difference between AG-group and NC-group and were better in AG group than in DM group as following:(1) Myofibril arranged tidily with intact regular edge;(2) Mitochodria were big and normomorph with crests arranging densely,some mitochondria gathered locally;(3)Base membrane of blood vessels didn′t thicken with lumen not narrowed;(4) The collagenous fiber in stroma reduced but amorphous material didn′t reduced. Conclusions The ultrastructure pictures of diabetic cardiomyopathy is inhibited or delayed by AG,which suggests that AGEs may play some role in the development of diabetic cardiomyopathy.

Objective To understand the characteristics of common causes of acute pancreatitis (AP) in China and evaluate the association of the aetiology with gender and mortality.Methods The relevant literature was searched by the China journal full-text database (CNKI),Wanfang database,Weipu database and other databases and proceeding.Based on collecting data retrieval strategy,according to the inclusion criteria selection literature,Meta analysis was performed mainly for gallstone,hyperlipidemia,alcohol and other AP from the aspects of gender and case fatality rate.Results The Meta analysis included 11 articles which were accordance with the criteria,involving 13 601 patients,including 6 732 cases of biliary AP,1 372 cases of hyperlipidemia AP and 1 169 cases of alcohol AP.The Meta analysis showed that biliary AP male to female ratio was 0.79 ∶ 1,hyperlipidemic AP male to female ratio was 1.54 ∶ 1,alcoholic AP male to female ratio was 10.47 ∶ 1,overeating AP male to female ratio was 1.29 ∶ 1,and there was significant difference (P ＜ 0.05).Alcoholic AP mortality rate was the highest,which was 2.81 times than the biliary AP and 2.46 times than the hyperlipemic AP,and there was significant difference (P ＜0.05).Conclusions Biliary tract disease is the main etiologic cause of AP in China,and there are more females than males.The mortality rate of alcoholic pancreatitis is the highest,and there are more males.But we should investigate further high-quality,large-scale trails in patients with AP.

[Summary] Glucose-dependent insulinotropic polypeptide ( GIP) is known to promote the release of insulin fromβcells, but this function suffers from a defect in obese patients. More and more evidences suggest that GIP is the bridge between a high-fat diet, obesity, insulin resistance, and type 2 diabetes. With the deepening of research in GIP in type 2 diabetes and obesity, GIP may provide new ideas for the treatment of type 2 diabetes and obesity.

ObjectiveTo study the expression of adhesion mol ecules (CD 54 、CD 62p ) on diabetic neuropathy in the STZ induced rats and the effect of cilostazol treatment.MethodsSD rats were divided into four groups: normal control, diabetes control, insulin and cilostaz ol treated group. Sciatic nerve conductive velocity, the level of CD 54 /CD 62p on the surface of mononuclear cell/platelet were examined, and ultrast ructure of sciatic nerve was observed.ResultsCilostazol incr eased sciatic nerve conductive velocity significantly [DM=(20.3?2.2) m/s vs ci lostazol=(28.9?7.9)m/s,(P

To study the role of vein tubulation in the facial nerve regeneration. Methods:Twelve male adult SD rats were divided randomly into vein tubulation group,nerve graft group and normalcontrol group- The facial nerve trunks were cut and grafted' Three months p0stoperation, the distributionand variation of the fascicles were observed under light microscope. Fascicular area,axon number and axondensity were gauged and caculated. Results:Within the vein chamber, the regenerating nerve consisted ofmany fascicles. In the nerve graft, there was a major fascicle surrounded by many small fascicles. Thenormal facial nerve trunk had only one fascicle. Among 3 groups, the fascicular area and axon number ofthe nerve graft were largest, but the axon density had no significant difference. Conclusion: The micr0en-vironment in vein chamber may be beneficial to growth of regenerating axons.

BACKGROUND:The early damaged chondrocytes are susceptible to de-differentiate and exert unstable phenotype during the in vitro culture, thus needing some growth factors.
OBJECTIVE:To observe the promotion effect of insulin-like growth factor 1 on the in vitro proliferation of chondrocytes in adult rabbits with traumatic arthritis.
METHODS:Traumatic arthritis models of adult rabbits were established by using the modified Hulth method. After the models were successful y established, the distal femur and proximal tibia were harvested under sterile conditions, the chondrocytes were cultured. The cultured cells were divided into two groups:control group was cultured with Dulbecco’s modified Eagle’s medium containing 10%fetal bovine serum, while experimental group was cultured with Dulbecco's modified Eagle’s medium containing 100μg/L insulin-like growth factor 1. The effect of insulin-like growth factor 1 on the proliferation of chondrocytes in adult rabbits with traumatic arthritis was determined through the cytomorphology, cellcounting, and cellactivity.
RESULTS AND CONCLUSION:The chondrocytes in adult rabbits with traumatic arthritis were successful y cultured, the majority of cells were mini-cells, presenting smal fusiform, round or polygonal shape. Hematoxylin-eosin staining showed that the number of cells in experimental group was higher than that in control group. MTT assay found that the absorbance of cells in experimental group was greater than that in control group (P<0.01). Our findings indicate that, insulin-like growth factor 1 can promote the in vitro proliferation of chondrocytes in adult rabbits with traumatic arthritis.

Objective To study the sensitivity and reliability of rat skin anaphylactoid test method, detect and evaluate the anaphylactoid reaction of traditional Chinese medecine injection. Methods The condition of rat skin anaphylactoid test was optimized by studying the influencing factors of sensitivity and reliability of test with C48/80 as a tool drug, Tween80, endotoxin, China cobra toxin, trichosanthin injection, Tanreqing injection and Xuesaitong injection were investigated. Results The best conditions of rat skin anaphylactoid test was as follows:intrademal inject the drug with insulin syringe, 50-100μL per point, immediately inject 0.5%Evans blue dye 1 mL though caudal vein, 15 min later, kill the rat by carotid artery bleeding, clip dorsal skin to do the test. With this method, Tween80, endotoxin, China cobra toxin and trichosanthin injection all can induce blue stain in rat skin. Tanreqing injection showed no blue stain at the clinical dose. Xuesaitong injection although can induce blue stain in rat skin at the clinical dose, but the results cannot exclude the interference of its pharmacological function. Conclusion The method is simple with short test cycle, less dose of test drug, high detection sensitivity and good reproducibility, but some drug can show false positive result due to its own property.