ObjectiveTo investigate the influence of overtaking of liquor on the expression of caspase-3 in the mouse seminiferous tubule.MethodsAdult mice were given liquor through the stomach.The dose was 4g/kg body weight per day for 5 continuous days.Hybridization in situ was performed for detecting the caspase-3 expression in the mouse seminiferous tubule.ResultsIn the control group,there were few Caspase-3 positive cells in the mouse seminiferous tubule.In the group of five days taking liquor,the caspase-3 positive cell count increased obviously.In the group of ten days taking liquor,the caspase-3 positive cell count was maximum.ConclusionAlcohol could induce the apoptosis of spermatogenic cell.

Objective To evaluate the effects of bupivacaine and ropivacaine on guinea pig papillary muscle action potential Methods The guinea pig papillary muscle preparation was exposed to ropivacaine (1, 3 or 5?g?ml -1 ) or bupivacaine ( 1, 3 and 5?g?ml -1 ) respectively, to measure maximum rate of depolarization (Vmax ), action potential amplitude (APA),action potential duration at 50% of repolarization(APD 50 ), and action potential duration at 90% of repolarization(APD 90 ) Results Vmax significantly decreased after exposure to both agents at all concentrations, Vmax decreased by 27 4% with ropivacaine at 5?g?ml -1 , and the degree was similar to that with bupivacaine at 3 ?g?ml -1 (28 4%) ,but was significantly lower than that with bupivacaine at 5 ?g?ml -1 (42 6%) (P

0 05), while the difference between RBco and TDco was significant before CPB was started and 60min after termination of CPB (P

AIM: To investigate the anti-DIC effect of the domestic recombinant hirudin (rH) in order to provide preclinical pharmacological basis for its new drug application. METHODS: DIC was induced by constant iv infusion of thrombin (100 U?kg -1 ?h -1 ?1 h) plus PAMBA (50 mg?kg -1 ?h -1 ?1 h). Platelet count (PLT), PT and fibrinogen (FIB) determination as well as plasmaprotamine paracoagulation (3P) test served as diagnostic indexes of DIC, while pathlogical examination of microthrombosis of lungs and kidneys was followed. RESULTS: rH 125,62.5,31.25 and 15.625 ?g?kg -1 iv. gtt demonstrated a dose-dependant inhibitory effect on DIC. The inhibitory effects on DIC of rH(%) were 89.38%, 52.60%, 49.71% and 25.58% for PT, and 100.01% , 61.86%, 58.40% and 32.68% for PLT, and 85.22%, 73.01%, 33.60% and 14.86% for FIB respectively at the descending order of rH doses. CONCLUSION: Domestic rH being tested has powerful anti-DIC effect which is comparable with refludan—an r-hirudin product approved by European Community for marketing.

Objective: To observe the effects of panaxtriol saponin (PTS) on CK-MB, cTnI, IL-6, TNF-α, and ultrastructure against myocardial ischemia-reperfusion injury (MIRI) in rats. Methods: Wistar rats were randomly divided into six groups: Sham, MIRI model, positive control, and 22.5, 45, and 90 mg/kg PTS groups. Animal MIRI model was made by ligating the left anterior descending coronary artery. Drug was given for seven consecutive days before the operation by ip injection. Rats were sacrificed after 30 min ischemia and 24 h reperfusion. CK-MB, cTnI, IL-6, and TNF-α in serum were measured and the changes of myocardial ultrastructure were observed. Real time PCR was used to evaluate change of NRF2 and HO-1 mRNA level in myocardial tissue. Results: Compared with model, PTS 45 and 90 mg/kg reduced the CK-MB, cTnI, IL-6, and TNF-α in serum and improve the myocardium ultrastructure. Nrf2 and HO-1 mRNA levels in PTS treatment group were higher than those in MIRI model group. Conclusion: PTS plays a crucial role in cardioprotection against the ischemia and reperfusion injury in rats. The protective mechanism suggests that PTS could stimulate NRF2/HO-1 expression in myocardial tissue and then inhibit myocardial inflammation.

10.3969/j.issn.2095-4344.2013.24.004

Objective To observe the prokinetic effect of domperidone on esophagus and lower esophageal sphincter (LES), and compare its effect with that of mosapride and cisapride. Methods In vivo experiments: forty rats were divided into control, domperidone, mosapride, and eisapride groups. Strain gauges were planted in proximal esophagus, distal esophagus and LES to record the activities of esophagus and LES in conscious rat. In vitro experiments: in the thermostatic muscle bath, the prokinetic effect of domperidone, mosapride, and cisapride on the contractility of rat muscle strips from esophagus body and LES were recorded by tone-transducers. Results In vivo experiments, ① In the interdigestive period of resting conscious rats, only mild contraction activities were recoded in esophagus bodies. In LES, typical interdigestive migrating motor complex (MMC) with phase Ⅰ,Ⅱ,Ⅲ,and Ⅳ was recorded. The contraction amplitude of LES was much greater than esophagus body. ② Domperidone significantly enhanced the contraction of esophagus body and LES. The mean contraction amplitude of proximal esophagus, distal esophagus, and LES increased by 63.24%±7.17%, 75.54%±5.27%, and 85.81%±6.02%, respectively, compared with controls. The prokinetic effect showed a dose-effect relation. Mosapride at the same dosage increased the mean contraction amplitude of proximal esophagus, distal esophagus, and LES by 29. 71%±4.15%, 40.15%±3.30%, and 35.24%±5.36%, respectively, compared with controls. The prokinetic effects of mosapride on esophagus and LES were much less than domperidone. Cisapride at the same dosage increased the mean contraction amplitude of proximal esophagus, distal esophagus, and LES by 59.84%±6.55%, 70.11%±5.62%, and 75.13%± 5.10%, respectively, compared with controls. The prokinetic effects of cisapride were similar as domperidone. In vitro experiments. ① Domperidone perfusion could significantly increase the contraction of esophagus body and LES muscle strips by 87.74%±7.65% and 92.44±7.17%, respectively, compared with Krebs-Ringer (KR) solution perfuslon. Mosapride at the same dosage increased the mean contraction amplitude by 35.42%±5.02% and 31.12%±4.32%, respectively, compared with KR controls. The prokinetic effects of mosapride were much less than domperidone. Cisapride of the same dosage showed a similar prokinetic effect as domperidone. ② Atropine and tetrodotoxin could block the prokinetic effects of domperidone on esophagus and LES. Conclusions Domperidone can significantly enhance the esophagus body contraction and LES motility. The effects of domperidone are similar as cisapride and much greater than mosapride. The prokinetic effects of domperidone on esophagus and LES are not only through well-known dopaminergic receptor blockade, but also through the cholinergic nerves of the enteric nervous system.

Objective To investigate the expression of human epidermal growth factor receptor?2(HER?2)and Survivin protein in gastric cancer tissue,and explore its relationship with clinicopathological characteristics. Methods Immunohistochemistry assay was used for detection of HER?2 and Survivin protein expression in 70 gastric cancer biopsy samples. The relationship with the clinicoathological parameters in patients with gas?tric cancer was analyzed. Results The expression of HER?2 and Survivin protein was correlated with tumor differentiation ,TNM stage and lymph node metastasis(all P<0.05),but not with sex,age,the diameter of tumor. The correlation analysis of positive rate and the semi?quantitative pro?tein expression showed that the expression of Survivin and HER?2 was significantly positively related(all P<0.01). Conclusion The positive ex?pression of HER?2 and Survivin protein in gastric cancer correlates with tumor differentiation ,TNM stage and lymph node metastasis. HER?2 ex?pression significantly correlates with Survivin at the protein level in gastric cancer tissues.

Objective To investigate the prognostic significance of proteolysis-inducing factor (PIF) in gastric cancer patients.Methods Biopsies of the rectus abdominis muscle were obtained intra operatively from 53 gastric cancer patients and 53 subjects undergoing surgery for benign abdominal diseases,muscle and serum PIF,ubiquitin expression,and proteasome proteolytic activities were assessed through reverse-transcription polymerase chain reaction (RT-PCR),Western blot,and enzyme-linked immunosorbent assay (ELISA).Results PIF was significantly upregulated in muscle of gastric cancer compared to control muscles.PIF was upregulated in 60％ (32/53) muscle of gastric cancer.Over expression of PIF in muscles of gastric cancer were associated with level of serum albumin,tumor node metastasis (TNM) stage,and percent of weight loss.The survival rate of patients with a high expression of PIF was significantly lower than those in patients with low expression (P ＜ 0.05).Conclusions PIF was significantly upregulated in muscle of gastric cancer,over expression of PIF in muscles of gastric cancer was associated with level of serum albumin,TNM stage,percent of weight loss,and prognosis.PIF might play an important role in progression and prognosis of gastric cancer.

Objective To investigate the manifestation and the prevention means of video display terminal (VDT) visual fatigue in old people. Methods Conventional eye inspection were performed for 45 patients, including optical muscle movement, position of eye, confluence function and presbyopia. Results We found that the average difference between middle distance correcting lens and 33 cm reading distance from presbyopia correcting lens was about 0.52 DS( P