Humans ; Hypertension, Portal ; etiology ; surgery ; Liver Cirrhosis ; complications ; surgery ; Liver Transplantation ; Portasystemic Shunt, Surgical ; methods

Humans ; Hypertension, Portal ; physiopathology ; surgery ; Liver ; physiopathology ; Liver Cirrhosis ; complications ; Liver Transplantation ; Portasystemic Shunt, Transjugular Intrahepatic

ObjectiveTo study the mechanism of hemodynamic alternation surrounding the hematoma in the acute stage of intracerebral hemorrhage (ICH) in rats.MethodsSeventy male Sprague Dawley rats were randomly divided into ICH group and sham operated group, which were microinjected with 40 μl fresh autologous blood or saline into the right caudatum respectively. The each group was divided into 7 subgroups at 1h,3h,6h,12h,24h,48h and 72h after the ICH. CT perfusion imaging in measurements of regional cerebral blood flow adjacent to hematomas was performed. The ratios of side to side were measured at the regions around the hematomas by personal computer aided mapping. So the parameters of regional cerebral blood flow(rCBF), regional cerebral blood volume(rCBV) and mean transit time(MTT) were calculated respectively.ResultsThe rCBF and rCBV adjacent to the hematomas were lower than those of the outer region pronouncedly. The alternation of rCBF around the hematoma were fluctuated, which reduced to the valley at 1h after ICH, and then gradually returned to the peaks at 6h and 24h after ICH. In the meantime, the rCBV around the hematoma reduced to the valley at 1h after ICH, and then gradually increased to the peak at 24h after ICH.ConclusionThe abnormal hemodynamic changes can be found in the perihematomal region after ICH. The alternation of rCBF around the hematomas are fluctuated, but the changes of rCBV remain continuous increase. The mass effect of hematoma, intracranial hypertension caused by the mass effect of hematoma, and the autoregulation of cerebral blood flow motivated by the initial depression of cerebral blood flow play a very important role in the changes of cerebral blood flow.

Objective To obtain the recombinant protein LytA (rLytA) of Streptococcus pneumoniae strain (ATCC49619) through prokaryotic expression system and to investigate their diagnostic value for patients with community acquired pneumonia (CAP).Methods The specific primers were designed according to LytA gene sequence of Streptococcus pneumoniae M66 strain recorded in Genbank.The recombinant plasmid pET32a(+)/LytA was constructed and transformed into BL21(DE3) to express LytA.The expressed protein LytA was purified by electroeluting of bag filter.Serum IgM of anti-LytA accordingly of patients with CAP were detected by ELISA.The results were evaluated by Chi-square test.Results The recombinant protein LytA was expressed and purified successfully with a relative molecular weight of 56 000.The IgM antibodies level of anti-LytA was significantly higher than the healthy control group (P=0.000).Diagnostic sensibility and specificity of LytA-IgM were 27.8% and 100.0%,while sensibility and specificity of sputum culture were 19.4% and 72.2%,respectively.The sensibility of LytA-IgM was equal to sputum culture(χ2=0.693,P=0.405),but the specificity was higher than it(χ2=14.316 P=0.000).Conclusions A rLytA-ELISA assay maybe has clinical value for diagnosis of pneumococcal infections.It is more rapid and objective than the culture method.

Many Chinese drugs (CHD) have showed their significant effects of integral immune-regulation, and lots of researches have conducted in recent years for exploring their mechanism from different levels, like cytological, molecular and genetic levels. In this paper, the relation between immune-regulation of CHD and Toll-like receptors/nuclear factor-kappaB (TLRs/NF-kappaB) signaling pathway was introduced in brief based upon the achievements of previous researches. It was pointed out that the two are closely related, to explore mechanism of CHD in this way is meaningful not only for further deepening the theoretical understanding of CHD's pharmacological immunoregulation, but also be practically facilitate for enhancing therapeutic efficacy of CHD and developing new CHD.
Adjuvants, Immunologic ; pharmacology ; Drugs, Chinese Herbal ; pharmacology ; Humans ; NF-kappa B ; immunology ; Signal Transduction ; drug effects ; Toll-Like Receptors ; immunology

Objective To observe the pathological infrastructure changes of lung tissue in diabetic rat with pulmonary fibrosis and the preventive effect of rosiglitazone intervention. Methods The experimental type 2 diabetic rats were yielded by high-sugar, high fat diet plus intraperitoneal injecting streptozotocin (STZ). The pathological infrastructure changes of lung tissue were observed by transmission electron microscopy in the control, diabetes mellitus group and rosiglitazone treatment group respectively, and the hydroxyproline contentswere determined simultaneously. Results We observed accumulation of collagen fibers and extracellular matrix in the lung tissue of simple diabetic rat, which indicated pulmonary fibrosis. The hydroxyproline contents were significantly higher in diatetes mellitus group when compared to the control at 12 weeks[ 0. 77 ± 0. 03μg/(mg·prot) vs.0.63 ±0.03 μg/(mg·prot)] and 20 weeks [0.93 ±0. 10 μg/(mg·prot) vs.0.87 ±0.10μg/ (mg·prot) ]. (Ps < 0.05) , but the rosiglitazone intervention significantly reduced the hydroxyproline 3contents in diabetes mellitus rats [0.85 ±0.08 μg/(mg·prot) vs.0.87 ±0. 10 μg/(mg·prot) ,P<0.05].Conclusion Pulmonary fibrosis occurred in diabetic rats lung tissue,while rosiglitazone can alleviate it.

Objective To explore the difference of four calculating methods used to determine the obesity. Methods Two thousand four hundred and forty six (2446) men and three hundred and seventy nine (379) women were measured height and body mass, Standard body mass, BMI, body fat ratio and obesity index(OI) were calculated with formula. According to the BMI≥ 25 kg/m2 , BMI ≥ 27 kg/m2 and BMI≥28 kg/m2, the obese adults were 1419,680 and 435 respectively;there were 649 adults that their body mass was over 20％standard body mass; there were 639 adults that their body fat ratio was over 25％(male)and 33％(female). Results For obesity determination, the adults who were 20％overweight and over standard body fat ratio were significantly different from those whose BMI were over 25 kg/m2 ( P＜0. 05 ) ;Those who were 20％overweight and over standard body fat ratio were not significantly different from those whose BMI were over 27 kg/m2 ( P＞0.05 ) ; Those who were 20％overweight and over standard body fat ratio were significantly different from those whose BMI were over 28 kg/m2 ( P＜0. 05 ). Conclusion Determining obesity with BMI≥27 kg/m2 is feasible and rational.

To establish a method based on a pseudotyped virus assay for screening drugs for anti-H5N1 avian influenza virus, and then to evaluate anti-virus activity of traditional Chinese herbal compounds with the function of purgation, detoxification, cooling the blood and reinforcing the healthy qi based on seropharmacology.

1:16) of the relative serum antibody has been observed in 80%, while none of this high level was observed in patients with Echovirus-25 and adenovirus dermatitis (

Objective To observe the clinical effect of Yiqi Yangyin Huoxue decoction(the function of decoction is to tonify Qi,nourish Yin and enhance blood circulation)on salivary gland response attribute to radiotherapy.Methods This study,carried between January 2005 and December 2005,focused on the effect of Chinese herbs on salivary gland response attribute to radiotherapy.In the treatment group,30 cases took Chinese herbs during the duration of radiotherapy,while in the control group 30 cases were given routine therapy.Results Both groups had finished the radiotherapy,however,in the control group,there were 5 cas- es with a break for 1～2 weeks.For the comparison of the salivary gland change in acute stage,there was no variance(x~2=2.387,P=0.122);the latency for the salivary gland change in treatment group was longer than that in control group(x~2=13.106,P=0.000).For the comparison of Karnofsky after radiotherapy,the KS was superior in the treatment group than that in control group(x~2=12.685,P=0.013);For the comparison of objective effect after radiotherapy,the remission rate in treatment group was 90 %,and it was 86.7 % in control group(x~2=0.638,P=0.727).Conclusion The decoction can remit the salivary gland response caused by radiotherapy in clinic,prolong the latency for acute radioactive response;release the pain of the pa- tients,increase the achievement ratio for radiotherapy,and improve the patients'living condition.To combine with radiotherapy,Chinese herbs is a good supplemental therapy for nasopharyngeal carcinoma