Two unusual cases of coexistence of Hashimoto′s thyroiditis and subacute thyroiditis were reported. The diagnosis was based on the comprehensive analysis of clinical symptoms, laboratory data and histological findings. If patients with confirmed evidence of subacute thyroiditis were accompanied with markedly and persistently elevated titers of thyroid autoantibodies, coexistence of both diseases should be suspected.

On the basis of Shay's ulcer model, we have studied the effects of food re. striction time on the experimental gastric ulcer in rats. The results indicat that each restricted group forms gastric ulcer after ligation of pylorus 18 hr. There are a postive correlation between the restricted time and the severity of gastric ulcer, and a negative correlation between the severity of gastric ulcer and the amount of gastric acid secretion. We suggested that Shay's ulcer model does not belong to peptic ulcer, but belonges to one of the stress ulcers. The restricted time may play an important role in the mechanism for this ulcer model.

Biomechanical Phenomena ; Humans ; Lumbosacral Region ; physiology ; Male ; Occupational Health ; Wood ; Workplace

Renin-angiotensin system (RAS) is correlative with many diseases. Angio tensin II (AngII) plays an important role as the final effective approach for RAS. This article reviews the main approach to the action and biosynthesis of AngII: including AngII receptor blocker (ARB), chymase inhibitor and ACE2 which were disscoverd recently.

Objective The aim of this investigation is to explore the effects of hypoxia on the biological activity of endothelial progenitor cells(EPC)and to improve the efficacy of EPC transplantation.Methods Rat bone marrow derived EPC were isolated and cultured either under normoxic or hypoxic conditions.The proliferation,migration and angiogenic ability of EPC were observed.Results In hypoxic group,the number of attached cells per high power field(hpf)was significantly more than that in normoxic group (91.0?8.0)vs(42.5?5.3),P

Objective To explore the principle,effect and method of percutaneous AiDi injection for treatment of implanted VX2 liver tumor with ultrasound guidance.Methods Twenty-eight New Zealand white rabbits with implanted VX2 liver tumors were randomly divided into 3 groups:AiDi injection group (n=12) ,percutaneous ethanol injection (PEI) group (n=8) ,and physiological saline group (n=8) .Two weeks after transplantation,the drugs were injected into tumors of all the rabbits once every 3 days.After 4 times injection,the rabbits were killed.The tumors were measured with 64-slice CT,while the rate of tumor necrosis,the volume of tumor and the growth rate of the tumor were calculated.Liver and kidney function tests (AST,ALT,ALP and BUN) as well as white blood eell counts were assessed before and after treatment,and CT examination was performed at the same time.The morphological and the ultramicrostructural changes were also investigated under light microscope or electron microscope.Results Tumors in all groups kept growing after the procedure.Among all 3 groups,tumor growing rate for AiDi injection group was the lowest and the necrotic rate was the highest (P＜0.05) ,while no significant difference was found between AiDi injection group and PEI group (P＞0.05) .Apoptotic index in AiDi injection group was significantly higher than that in PEI group and physiological saline group (P＜0.05) .There was no evident change of liver and kidney function before and after treatment in AiDi injection group and PEI group (P＞0.05) .Conclusion AiDi injection can induce apoptosis of liver VX2 tumor cells.Percutaneous AiDi injection therapy can obviously inhibit and destroy liver VX2 tumor cells.

This article reviews and summarizes recent years’ literature on the correlation of substance P with meridians and acupoints in order to provide a theoretical basis for the mechanism of acupuncture effect.

Objective To study the relationship among the slow vertex response (SVR) ,tone burst ABR threshold and pure tone thresholds in young people with normal hearing ,and to discuss the values of SVR and tb -ABR assessing hearing thresholds .Methods A total of 30 normal-hearing young people aged 20 to 24 were indud-ed in this study .The thresholds of SVR ,tb -ABR and threshold of PTA were tested at each verbal frequency (0 .5 ,1 ,2 ,4 kHz) .The differences and the relationship among SVR with PTA ,tb-ABR ,and PTA were statistical-ly studied .Results The differences between SVR and tb -ABR and PTA at various frequencies were statistically significant (P<0 .05) .The minimum difference between SVR and PTA was (3 .59 ± 7 .32) dB at 0 .5 kHz .The differences of 1 ,2 ,and 4 kHz were 6 .92 ± 5 .07 ,8 .33 ± 6 .71 ,and 9 .83 ± 9 .41 dB ,respectively .The minimum differences between tb -ABR and PTA was 14 .58 ± 7 .24 dB at 4 kHz ,and the differences of 0 .5 ,1 ,and 2 kHz were 29 .42 ± 6 .83 ,23 .25 ± 7 .47 ,and 16 .50 ± 6 .43 dB ,respectively .SVR and PTA had a good correlation at 1 and 2 kHz (r=0 .51 ,P<0 .01 and r=0 .44 ,P<0 .05 ,respectively) .tb-ABR and PTA had a good correlation at 4 kHz (r=0 .53 ,P<0 .01) .Conclusion In normal hearing young population ,SVR and tb-ABR can estimate PTA well , and the former is closer to PTA threshold .

It is now clear that both endogenous and exogenous sources of nitric oxide(NO) exert important modulatory effects on cardiac mitochondrial function.There is also growing evidence that NO can be produced within the mitochondria themselves.NO can influence respiratory activity,both through direct effects on the respiratory chain or indirectly via modulation of mitochondrial calcium accumulation.At pathological concentrations,NO causes irreversible alterations in respiratory function and also interacts with reactive oxygen species(ROS) to form reactive nitrogen species(RNS),which may further impair mitochondrial respiration and even lead to open the mitochondrial permeability transition pore and induce cell death.Diabetes,aging,myocardial ischemia,and heart failure are all associated with altered ROS generation,which can alter the delicate regulatory balance of effects of NO in the mitochondria.

The constant iv. of aconitine can induce the varied arrhythmias in mice. Taurine 100mg/kg iv. or Quinidine 5 mg/kg iv. can delays the onset time of arrhythmias, and increases the dose of aconitine, respectively .But no effects were seen in mice pretreated with taurine 50mg/kg or quinidine 2.5mg/kg. However their combination can significantly decrease the incident of ventricular fibrillation and delay the onset time of death. Our results suggested that taurine, quinidine and their combination are effective on arrhythmias induced by aconitine in mice.