Objective To investigate the accuracy of predicting middle cerebral artery infaction with contin -ue electroencephalograph .Methods 40 cases with middle cerebral artery infaction were divided into malignant groups(14) and binigan groups(26).They were all with continued beside electroencephalograph within 24 hours after admission.Results Abnormal CEEG rate in malignant groups [85.71%(12/14)]was significantly higher than that in binigan groups[65.38%(17/26)](χ2 =10.405,P=0.001).In malignant groups,severe abnormal CEEG was seen in 4 cases developed coma at the second day of admission ,moderate abnormal CEEG was found in 6 cases,slight abnormal CEEG was detected in 2 cases,normal CEEG was detected in 2 cases.Conclusion Early CEEG has a cer-tain value for predicting middle cerebral artery infaction .

Objective To study the clinical features of children with rotavirus enteritis complicated with respiratory infection.Methods The clinical features of 32 children with rotavirus enteritis were evaluated retrospectively complicated with respiratory infection (respiratory infection group) and 37 children with rotavirus enteritis complicated without parenteral infection (control group).Results 1. The respiratory symptoms became alleviative as the alimentary symptoms changed for better. 2. Duration of diarrhea weve(7.06?1.50)d in respiratory group was significantly longer than that in control group (4.73?1.31)d (t=6.90 P

As the human population ages and the life expectancy increases,tendon injuries will become more prevalent,especially among young individuals.Though the traditional operative therapy for tendon lesion can relieve the suffering of patients,the functional reconstruction is usually not optimistic.Tissue engineering is an advancing field,as the technology of construction in vitro and application in vivo matures,that can provide a more promising approach for tendon repair without tendon autograft.Challenges and future directions in the field of tendon tissue engineering focusing on four key parameters:seed cells,novel scaffolds,and mechanical stimulation.Recently,the discovery of TDSCs (tendon-derived stem cells) provides new ideas for the selection of seed cells and effect of mechanical stimulation on the tendon tissue engineering has become a hot spot.This article provides a review of recent progress in research about seed cells,scaffolds and mechanical stimulation for tendon engineering,and also speculates on the development in the future.

OBJECTIVETo investigate the effects of exercise (EX), low-fat diet (LFD) and their combination intervention on the tumor necrosis factor-alpha (TNF-alpha) expression of insulin resistance in rats.

METHODSOne hundred and thirty male rats randomly assigned to 2 groups: Control (CON)-10 rats consuming a low-fat diet; HFD-120 rats consuming a high-fat diet (HFD). The dietary regimen was sustained for 8 wk, at which point the 40 HFD group rats gaining the most weight were referred to as the obese rats. Glucose tolerance was assessed by an oral glucose tolerance test (OGTT). During the procedure of OGTT, the blood was drawn for insulin assay (insulin release test). The whole body insulin resistance was assessed by glucose-insulin index. The obese HFD group rats were randomized into one of four intervention groups: HFD-sedentary (HFD-SED), HFD-exercise(HFD-EX), low fat diet-SED (LFD-SED), LFD-EX. Ex rats performed 8-wk exercise training on a motorized treadmill. The CON group had access to low-fat diet for another 8 wk. After 8 wk of exercise and low-fat diet intervention, the OGTT and insulin release test were performed again. To use ELISA technique for detecting TNF-alpha in soleus muscle and adipose tissue.

RESULTSAfter being fed high-fat diet for 8 wk, glucose-insulin index in the HFD group were significantly greater than that in CON group (P < 0.01). After 8-week exercise and low-fat diet intervention, glucose-insulin index in HFD-SED group was significantly greater than that in CON group (P < 0.01). The index in three intervention groups was significantly less than that in HFD-SED group (P < 0.01) . TNF-alpha content in adipose tissue and the soleus muscle for HFD-SED group was significantly greater than that in CON group (P < 0.01). Three intervention groups were significantly less than HFD-SED group (P < 0.01).

CONCLUSIONExercise and low-fat diet interventions can decrease the TNF-alpha expression in insulin resistance rat.

Animals ; Diet, Fat-Restricted ; Insulin Resistance ; Male ; Obesity ; metabolism ; Physical Conditioning, Animal ; Rats ; Rats, Sprague-Dawley ; Tumor Necrosis Factor-alpha ; metabolism

Aim To study the effect of Tryptanthrin(Try) on proliferation and apoptosis of erythroleukemia K562 cells.Methods The cell proliferation effect of Try(1.56～50 mg?L-1) on K562 cells was assessed by MTT assay.The morphologic change was observed by Hoechst 33258 fluore-scent stain.The flow cytometer was used to detect cell apoptosis and cell cycle.Results MTT showed that in the range of 3.12～50 mg?L-1 Try obviously inhibited the proliferation of K562 cells in a dose and time-dependent manner.Typical apoptosis changes were observed in K562 cells treated with Try for 48 h by flourescence inverted microscope.With Annexin V-FITC and PI double staining,folw cytometer result showed that the apoptosis state was obvious in K562 cells treated with 25,50 mg?L-1 Try for 48 h.The cell cycle distribution of K562 was changed.The G0/G1 phase was blocked and the DNA synthesis was inhibited,accompanied with subdiploid apoptotic peak.Conclusion Try has an effect on inhibiting the cell proliferation and inducing the apoptosis of K562.

Objective To evaluate biodistribution and pharmacokinetics pattern of ~(131)I-labeled rch24which is the region-grafted (humanized) anti-carcinoembryonic antigen (CEA) monoclonal antibody in nude mice. Methods Nude mice bearing cancer xenografts received intravenous injections of ~(131)I- rch24, then blood, plasma, heart, liver, spleen, lung, kidney, tumor and other tissues were taken at different time point for determination the concentration of radioactivity and calculate the T/NT value. Nude mice were packeted randomly to four group of high, medium, low dose and continuous administration, blood drug concentration was detected by ELISA method at the different intervals. Then, draw the concentration-time curve and calculate the pharmacokinetics paramete. Results After administration, radioactivity of the tumour was significantly enhanced whereas radioactivity of normal tissues decreased gradually. For single administration, at the dose of low to medium, pharmacokinetics pattern was linearity -kinetics whereas for high dose group,pharmacokinetics paramete shown some behavior of non-linearity-kinetics. Conclusion Our results suggest that the ~(131)I-labeled region-grafted (humanized) anti-CEA monoclonal antibody rch24 exhibit a considerable targeting activity so as to ~(131)I radioisotopes can be concentrated specifically in tumor. The pharmacokinetics pattern of this medicine was different at different dose.

Objective To evaluate the effect of hydrogen sulfide combined with mild hypothermia on cerebral ischemia-reperfusion (I/R) injury in rats. Methods Eighty male SD rats, aged 3 months, weighing 250-300 g, were randomly divided into 5 groups ( n = 16 each): sham operation group (group S), cerebral I/R group,mild hypothermia group (group M), sodium hydrosulfide group (group NaHS) and NaHS + mild hypothermia group (group NM). In group I/R, M, NaHS and NM, cerebral I/R was induced by occlusion of 4 vessels (cauterization of bilateral vertebral arteries and 15 min occlusion of bilateral common carotid arteries) followed by reperfusion. In group NaHS and NM, intraperitoneal NaHS 14 μmol/kg was injected immediately after reperfusion, while the equal volume of normal saline was injected in the other three groups. At the same time, the rectal temperature was reduced to 32-33 ℃ within 15 min, lasting for 6 h, in group M and NM, while it was maintained at 36-37 ℃by physical method in other groups. Twelve rats of each group were sacrificed after 6 h of reperfusion, and then the hippocampus was removed for determination of the content of H2 S by using spectrophotometer and the expression of p-CREB and BDNF mRNA by using Western blot and RT-PCR respectively. Four rats in each group were sacririced after 72 h of reperfusion and then the hippocampus was removed for microscopic examination. Results The cerebral I/R injury was attenuated in group M, NaHS and NM compared with group I/R, with the slightest injury in group NM. The H2S content was significantly higher in group I/R, M, NaHS and NM than in group S, and in group NaHS and NM than in group I/R and M. The expression of p-CREB and BNDF mRNA was significantly higher in group I/R, M, NaHS and NM than in group S, and in group M, NaHS and NM than in group I/R. The BDNF mRNA expression was significantly higher in group NM than in group M and NaHS. There was no significant difference in the H2S content and the expression of p-CREB and BNDF mRNA between group NaHS and M.Conclusion Hydrogen sulfide combined with mild hypothermia can attenuate cerebral I/R injury by up-regulating the expression of p-CREB and BDNF mRNA in hippocampus in rats.

To figure out the stability and intestinal bacteria metabolites of rats in vitro of astragaloside IV ( AST), this research was done to explore the stability of AST in the artificial gastric juice. artificial intestinal juice and rat liver homogenate and the metabolism in rat intestinal in vitro. HPLC was used to calculate the remaining rate of AST in biological samples by measuring the content of AST, while metabolites were determined by combining the methods of TLC, HPLC and LC-MS/MS. It turned out that AST was difficult to metabolize in the artificial gastric juice, artificial intestinal juice and rat liver. Also, the metabolic pathway of AST was stepped by deglycosylation. Firstly, AST was converted to its secondary etabolites (6-O-β-D-glucopyranosyl- cycloastragenol, CMG) by removal of xylose moiety at C-3, then transformed into cycloastragenol (CAG) after hydrolytic removal of the glucose moiety at C-6. All the results suggested that the metabolism of AST in vivo occurs mainly in the intestinal by hydrolysis of glycosyl. In conclusion, hydrolysis of intestinal flora is the main reason that AST metabolizes.
Animals ; Bacteria ; metabolism ; Chromatography, High Pressure Liquid ; Drug Stability ; Intestines ; microbiology ; Liver ; metabolism ; Rats ; Rats, Sprague-Dawley ; Saponins ; chemistry ; metabolism ; Tandem Mass Spectrometry ; Triterpenes ; chemistry ; metabolism

OBJECTIVETo explore the effects and mechanisms of multi-glycoside of Tripterygium wilfordii (GTW) on improving glomerular inflammatory lesion in rats with diabetic nephropathy (DN).

METHODDN model was induced by unilateral nephrectomy and intraperitoneal injection of STZ (35 mg x kg(-1)) twice. The rats were randomly divided into 3 groups, the sham-operated group (Sham group, n = 5), the vehicle-given group (Vehicle group, n = 5 ) and GTW-treated group (GTW group, n = 5). After the model was successfully established, the rats in GTW group were daily oral administrated with GTW suspension (50 mg x kg(-1) x d(-1)), meanwhile, the rats in Vehicle group were daily oral administrated with distilled water (2 mL) for 8 weeks. From the beginning of the administration, all rats were killed 8 weeks later. Blood and renal tissues were collected,and then UAlb, renal function, glomerular morphology characteristics and glomerular macrophages (ED1 + cells) infiltration, as well as the protein expressions of inflammatory cytokines including tumor necrosis factor(TNF)-α and interleukin(IL)-lβ, and the key molecules in p38MAPK signaling pathway including p38 mitogenactivated protein kinase (MAPK), phosphorylated p38 (p-p38MAPK) and transforming growth factor(TGF)-β1 were investigated respectively.

RESULTGTW not only ameliorated the general state of health and body weight,but also attenuated UAlb, glomerulosclerosis, the infiltration of glomerular ED1 + cells and the protein expressions of TNF-α, IL-1β, p-p38MAPK and TGF-β1 in the kidney in DN model rats.

CONCLUSIONBy means of DN model rats, we demonstrated that GTW has the protective effect on renal inflammatory damage in vivo via inhibiting inflammatory cells infiltration and inflammatory cytokines expression. Furthermore, GTW could improve renal inflammatory lesion through down-regulating the expressions of the key signaling molecules in p38MAPK pathway such as p-p38MAPK and TGF-β1 ,and inhibiting the activation of p38MAPK signaling in the kidney.

Animals ; Diabetic Nephropathies ; drug therapy ; Disease Models, Animal ; Glomerulonephritis ; drug therapy ; Glycosides ; pharmacology ; MAP Kinase Signaling System ; drug effects ; Male ; Rats ; Rats, Sprague-Dawley ; Transforming Growth Factor beta1 ; analysis ; Tripterygium ; chemistry ; p38 Mitogen-Activated Protein Kinases ; physiology

A case of hereditary benign telangiectasia without family history was reported. A 39-year-old woman presented with small and tiny telangiectases on the face, neck, upper trunk and forearms at birth. The numbers and sizes of the lesions increased gradually and she had no hemorrhagic diathesis and systemic diseases. No similar patients were found in her family. Upon physical examination, telangiectases were found on the face, neck, upper trunk and forearms; and a telangiectatic erythema was found on the right forearm 25 mm × 40 mm in size. Histopathology examination showed a normal epidermis and dilation of the capillaries at upper dermis. Hereditary benign telangiectasia without family history was diagnosed.
Adult ; China ; Female ; Genetic Diseases, Inborn ; diagnosis ; Humans ; Telangiectasis ; diagnosis