Animals ; Animals, Newborn ; Cells, Cultured ; Fibroblasts ; cytology ; metabolism ; Matrix Metalloproteinase 1 ; metabolism ; Matrix Metalloproteinase 2 ; metabolism ; Matrix Metalloproteinase 9 ; metabolism ; Myocardium ; cytology ; metabolism ; Oligopeptides ; physiology ; Rats ; Rats, Wistar ; Transforming Growth Factor beta ; pharmacology

Objective To observe the effects of aerobic exercise on the plasma content of homocysteine (Hcy),total nitric oxide synthase(T-NOS) and nitric oxide (NO) in rats fed a high methionine diet. Methods A total of 24 male Wistar rats were randomly divided into a normal diet(CR)group,a high methionine diet(MR) group and a high methionine diet plus swimming group(T+MR),and treated accordingly for 8 weeks.At the end of the treatment,all the animals were tested for plasma T-NOS,NO and homocysteine levels.Results Plasma homo-cysteine doubled,whereas T-NOS and NO levels in the MR group decreased significantly as compared with the CR group,suggesting that hyperhomocysteinemia was induced by the high methionine diet.Plasma homocysteine content decreased significantly in the T+CR group,but plasma T-NOS and NO increased significantly compared with the MR group.These indicators were not significantly different for the T+MR group from those of the CR group. Conclu-sion Adequate aerobic exercise can decrease the plasma level of homocysteine in rats fed a high methionine diet,and increase the plasma level of T-NOS and NO,helping prevent the development of hyperhomocysteinemia.

Objective To explore the relationship among HBV DNA load, HBeAg/Anti-HBe and ALT in patients with chronic hepatitis B infection. Methods HBV markers in 134 patients with chronic HBV infection were detected by ELISA,and patients were divided into group Ⅰ (HBeAg +/Anti-HBe-,43 patients) ,group Ⅱ (HBeAg-/Anti-HBe + ,69 patients)and group Ⅲ (HBeAg-/Anti-Hbe-,22 patients)according to the results of presence of HBeAg/Anti-HBe. HBV DNA load and ALT were tested respectively by fluorescence quantitative polymerase chain reaction technology and successive monitor reaction. Results Both the positive rate and the HBV DNA load quantification in group Ⅰ were higher than in group Ⅱ and Ⅲ (P＜0.01). Abnormality rate of ALT in HBV DNA positive patients was higher than the patients with HBV DNA negitive(P＜0.01). There was no relationship between HBV DNA load and ALT in HBV DNA positive patients. Conclusion There was a certain corelation among HBV DNA load, HBeAg/Anti-HBe and ALT,but the active degree of HBV replication could not to be assessed by HBeAg/Anti-HBe or ALT alone. It was necessary for the padient with chronic HBV infection to examine them together.

Objective To investigate the effects of nasal tip reduction with inner incision combined with external fixation,namely,to evaluate the formation of bilateral alar groove which is en hanced by external fixation with small splints,after removing interdomal fat pad as well as adjusting alar cartilage to reduce nasal tip.Methods Alar cartilage and interdomal fat pad were exposed via the bilateral nasal vestibular incision to remove fat pad and part of enlarged lateral foot of alar cartilage.After suture of incision,based on the tissue removal,plastic splint was used for external fixation of bilateral nasal tip and alar groove for one week,to enhance the formation of alar groove.Results A total of 143 patients were followed up for more than 6 months after operation.Photographs taken before and after operation were compared,suggesting obviously smaller nasal tip and significant alar groove.Left and right alar groove space was decreased from preoperative (28.23±3.31) mm to post operative (23.72±2.65) mm,and nasal tip alar angle was decreased from (104.02±9.57)°to (87.78± 6.98)°,with statistical significance (P＜0.05).Slightly asymmetric nasal alars were found in 6 patients during follow-up examination,while tiny scars caused by splints (at 0.6 cm from the edge of splints) were found in 1 patient.Conclusions On the basis of nasal tip reduction with inner incision,the method of suture with small splints combined with external fixation is simple,effective and available.

Objective To investigate whether transplantation of embryonic stem cell-derived cardiac myocytes (ESCMs) directly into the infarcted myocardium could improve the cardiac function in the rats.Methods Cell culture medium with or without ESCMs was injected into the borders of car- diac scar tissue one week after experimental infarction.Cardiac performance was evaluated 4 weeks later by means of echocardiography after ESCMs (n=16) or medium (n=12) injection.Results Im- munostaining confirmed the presence of?-actinin,?-MHC,and cTnI in the beating EBs.RT-PCR analysis of EBs revealed the expression of cardiac-specific genes,including cardiac Nkx 2.5,GATA-4 and?-MHC.ESCMs implantation significantly improved fractional shortening compared with medium- treated hearts (P

ObjectiveTo observe the clinical effect of compositive treatment on cerebral palsy children with rapid acupoint acupuncture at passive position.Methods37 children were treated with compositive treatment including acupoint acupuncture and physical training.Other 21 who treated with medicine were included as control.Results3 cases were cured and 33 cases were markedly effective in treatment group,which was better than that of control(P<0.05).ConclusionThe therapy composed of rapid acupoint acupuncture and physical training can significantly improve the function of children with cerebral palsy.

Objective To observe the effects of dexamethasone (DEX) therapy on the clinical outcome and changes of lymphocyte subsets in children with mild and severe encephalitis.Methods Eighty-two children with mild and severe viral encephalitis were randomly divided into two groups: with DEX treatment (n=46) or without(n=36).The clinical efficacy was evaluated 3 weeks later, and the clinical manifestation were also observed. The changes of CD4~+,CD8~+ T lymphocyte percentage were determined by flow cytometry on admission and at 1 week,4 weeks after treatment.Another group of 20 cases was enrolled as control group.Results Compared with the control group,both the DEX treatment group and non-DEX treatment group showed a reduced CD4~+ lymphocyte count, an increased CD8~+ lymphocyte count(P

Objective To explore the correlation between expression of nuclear factor kappa B (NF-kappa B) in peripheral blood monouclear cells(PBMC) and the severity of coronary artery lesion in patients with acute coronary syndrome(ACS). Methods The 81 patients were diagnosed with coronary heart disease, and all of them underwent immediate or selective coronary angiography(CAG) The nuclear protein level of activated NF-B was detected by Western blot and semi-quantity image analysis was done. Coronary angiograms were scored according to Gensini integration. The relationship between NF-κB and Gensini score was analyzed. Results The protein expression of NF-κB in PBMC in ACS group was significantly higher than that in stable angina group and control group (0.85±0.18 vs. O.75±0.21 and 0.71±0.23, F=3.72, P<0.05). The protein expression of NF-κB was not correlated with Gensini score(r=0.07, P>0.05). Conclusions The ACS patients have the activation of NF-κB in PBMC. The protein expression of NF-κB is not correlated with Gensini score, which does not suggest an implication of the severity of coronary artery.

Objective To investigate the approach of diagnosis and therapy of particular tracheal bronchus foreign body.Methods The clinical materials of 26 cases cured in our department were analyzed retrospectively.Results All foreign bodies of cases were taken out successfully.Among them,the foreign bodies of 18 cases were removed from glottis;the foreign bodies of 4 cases were pulled out via laryngoscope;the foreign bodies of 3 cases were drawn away through tracheotomy by endoscopy and 1 case was moved out by bronchofibroscopy.Only 1 case had lung edema and then was cured by proper treatment.Conclusion Considering that the particular foreign bodies in tracheal bronchus are complicated sometimes,the diagnosis and therapy should be treated appropriately according to different situation.Furthermore,properly choosing surgical appliances and the approaches of anaesthesia and surgery is also critical.

Objective To analyse the sonographie characteristics of thyroid nodules after injection and investigate the contrast enhanced ultrasonography. Methods Analysed the sonographic characteristics in 32 cases and observed the dynamic enhancement pattern of nodules by the time-intensity curve(TIC). The evaluated parameters were arrival time (AT), time to peak(TTP), peak intensity(PI). Results Thyroid cancer (12 cases) showed early wash in an early wash out in comparison with the adjacent thyroid parenchyma, and the enhancement intensity [AT(7.49 ± 4.45), TIP( 17.41 ± 2.84), PI( 18.56 ± 5.24) s] were lower than nodular goitre (20 cases) [ AT ( 13.22 ± 3.30), TIP (20.92 ± 2.59), PI ( 19.15 ± 5.47 ) s ] (P < 0.05 ). Conclusion The contrast enhanced ultrasonography may provide a useful method for the diagnosis of thyroid cancer.