Adolescent ; Adult ; Child ; Female ; Heart Failure ; blood ; Humans ; Male ; Middle Aged ; Myocardium ; metabolism ; Serum Response Factor ; metabolism

Objective:To investigate the protective effects of Cordyceps sinensis from Tibet and Qinghai on acute renal injury in-duced by gentamicin sulphate ( GM) . Methods:The rat model of acute renal injury induced by GM was established. The biochemical indicators including blood urea nitrogen ( BUN) and serum creatinine ( Scr) in serum and NAG enzyme and urine total protein in urine were detected. HE staining was used to observe the pathologic changes in kidney. Results:Compared with those in the model group, the levels of BUN and Scr in serum and NAG enzyme and urine total protein in urine were significantly reduced in the Cordyceps sinen-sis groups, and kidney cells necrosis was improved in the Cordyceps sinensis groups at low, medium and high dose (P<0. 05), how-ever, the difference between the Cordyceps sinensis groups with different habitats were not significant (P >0.05). Conclusion:Cordyceps sinensis from Qinghai and Tibet both have protective effect on acute kidney injury induced by GM in rats, and the difference between them is not remarkable.

Objective: To study the effect of levothyroxine replacement therapy on improving diffused left ventricular myocardial lesions and cardiac function in patients with hypothyroidism. Methods: Our research included 2 groups: Hypothyroidism group,n=20 newly diagnosed patients and Control group, n=17 normal healthy subjects. Diffused left ventricular myocardial lesions were quantitatively evaluated by non-invasive cardiac MRI T1 mapping technique. Left ventricular myocardial T1 value and left ventricular function before and after levothyroxine replacement therapy were compared; the relationship between T1 value and thyroid function and the relationship between T1 value and the indicators of left ventricular function were analyzed. Results:①Compared with Control group, Hypothyroidism group had increased left ventricular myocardial T1 value, P<0.01, while decreased cardiac index (CI) and left ventricular peak filling rate (PFR), allP<0.05.②In patients with hypothyroidism, left ventricular myocardial T1 value was negatively related to serum FT3 level (r=-0.52,P=0.0006) and PFR (r=-0.43,P=0.0085).③Compared with pre-therapeutic condition, the patients with recovered normal thyroid function showed obviously decreased left ventricular myocardial T1 value and improved CI, PFR. Conclusion: Levothyroxine replacement therapy may improve diffused left ventricular myocardial lesions in patients with hypothyroidism, and therefore improve the cardiac function.

The source of seed cells has always been the major problem in cartilage tissue engineering.Bone marrow stromal cells (BMSCs) have gradually become an optimal source of seed cells for cartilage engineering due to their high proliferative potential,multi-lineage differentiation potential and easiness to be obtained with minute trauma.The great challenge is how to get abundant BMSCs with a high purity and how to induce them in vitro into chondrogenic phenotype.This review aims to discuss the various strategies that can induce BMSCs chondrogenic differentiation in vitro so as to offer beneficial reference for constructing cartilage with BMSCs as seed cells.

ObjectiveTo study the differentiation of adipose tissue-derived mesenchymal stem cells (ADMSCs) into cardiomyocytes in vitro. MethodsADMSCs were isolated and purified by the method of digesting and adhering to the culture plastis. The third generation of cells were determined with immunocytochemistry method and induced by 5-aza. On the 7th, 14th, 21st, 28th day after being induced, the surface antigen of myoblast cell and cardiac myocyte were determined, the expression of gene of GATA4 and Nkx2.5 were tested, and the content of atrial natriuretic polypeptide (ANP) assayed. ResultsImmunocytochemical staining showed CD44, CD13, CD105 positive, CD45, CD34, HLA-DR, factor Ⅷ negative. After being induced by 5-aza, the direction of cell arraying was gradually similar. The cells were stained positively for Desmin, α-Sarcomeric Actin, myosin heavy chain and Troponin T. The cells express GATA4 and Nkx2.5 and secrete ANP. ConclusionThere was mesenchymal stem cells in human adipose tissue. 5-aza may induce ADMSCs to differentiate into cardiomyocytes in vitro.

Objective Obtaining chemical constituents of Angelica apaensis collected in Qiaojia County of Yunnan Province and detecting their anti-tumor activities in vitro. Methods The MeOH extract of was repeatedly subjected to column chromatography over silica gel, Sephadex LH-20 and/or RP-18 and semipreparative HPLC. Their anti-tumor activities in vitro were measured by MTT colorimetric assay. Results Eight compounds were isolated from the roots of this plant. Conclusion The major type of chemical constituents of in Yunnan is furocoumarin. These separated compounds showed weak anti-tumor activity in vitro.

The association between thyroglobulin gene polymorphism and autoimmune thyroid disease was investigated.A total of eight case-control studies were included.E33SNP was associated with increased susceptibility of autoimmune thyroid disease in recessive model (OR =1.54,95 ％ CI 1.21 ～ 1.97,P =0.024),while E12SNP was associated with increased susceptibility of autoimmune thyroid disease in allele model (OR =1.12,95％ CI 1.05 ～1.21,P =0.033).Thyroglobulin gene polymorphism seems to be associated with autoimmune thyroid disease.

To evaluate the regulating effect of Buyang Huanwu decoction and its simple prescription (Naojian tablet) on CDK4/Cyclin D1 expression in hippocampus tissues of rats with cerebral ischemia, SD rats were divided into the sham-operation group, the model group, the Buyang Huanwu decoction group (ig, 3.15 g · kg⁻¹) and the simple prescription group (ig, 2.41 g · kg⁻¹). Each group was further divided into five subgroups based on time points after the administration, i. e. 1 d, 3 d, 7 d, 14 d and 28 d, respectively. CDK4/Cyclin D1 expressions of the group at different time points were examined by using immunohistochemistry and real-time qPCR. According to the results, the cerebral ischemia model group showed higher CDK4/Cyclin D1 expression than the sham-operation groups (P < 0.05), suggesting that the cell cycle signal pathway would be activated by the cerebral ischemic injury. Both Buyang Huanwu decoction and simple prescription groups showed significantly lower cyclin expression than the model group at 3 d, 7 d, 14 d, 28 d (P < 0.05), indicating both Buyang Huanwu decoction and its simple prescription could play the neuroprotective effect through the cell cycle signal pathway.
Animals ; Brain Ischemia ; drug therapy ; genetics ; metabolism ; physiopathology ; Cell Cycle ; drug effects ; Cyclin D1 ; genetics ; metabolism ; Cyclin-Dependent Kinase 4 ; genetics ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Male ; Rats ; Rats, Sprague-Dawley

Child, Preschool ; Fatal Outcome ; Female ; Humans ; Respiratory Tract Infections ; complications ; Shock, Septic ; etiology ; Streptococcal Infections ; complications

Adult ; Aged ; Carcinoma, Squamous Cell ; genetics ; metabolism ; Esophageal Neoplasms ; genetics ; metabolism ; Female ; Gene Expression Regulation, Neoplastic ; Genes, p53 ; Humans ; Loss of Heterozygosity ; Male ; Middle Aged ; Point Mutation ; Tumor Suppressor Protein p53 ; genetics ; metabolism