Observations were carried out on the changes of ?-glutamyl transpeptidase (?-GT) changes in the kidneys and jejunum of the rat fetus and growing rats with histobiochemical methods. In general, the activity of ?-GT in the kidneys . increases with the increase of the age of the rats. In the rat fetus,?-GT is mainly localized on the surface of the metanephros tubular lumen. After the rat is born,R?-GT can be found on the brush border membrane of the proximal convoluted tubules and the epithelium of the Henle's loops as well as on the basement of the epithelium of the proximal convoluted tubules and the capillary walls of the renalfcortex and medulla. In addition, the activity of ?-GT is far more prominent in the deep layer than in the superficial layer of the renal cortex.In the jejunum of the rat fetus, marked activity of ?-GT is only found after the villi of the jejunum are formed: the activity is the highest when the fetus is of 21 days of age and it reduces after the rat is born.

Activity and localization of y-glutamyl transpeptidase (?-GT) , ?-Naph-thyl acetate esterase (ANAE) , alkaline phospbatase (AKP) and glucose-6-phosphatase (G-6-P) in the epididymis of the rat has been investigated histo-chemically by light microscopy.?-GT activity was mainly localized on the supranuclear region and the ste-reocilia of the epithelial cells. The intensity in the epithelium of the segment Ⅱ is the highest of the rat epididymis. There was a gradual decrease in the intensity of this enzyme from segment Ⅲ through Ⅳ and it was absent from the segment Ⅳ. Activity of ANAE in the segment Ⅳ, Ⅴ and Ⅵ was higher, but that in the segment Ⅰ,Ⅱ and Ⅳ was less. ANAE activity was localized throughout the cytoplasm of the epithelial cells in the segment Ⅰ,Ⅲ, Ⅴ and Ⅵ. Whereas the activity in the segment Ⅱ and Ⅳ was localized on the basal region of the epithelial cells. AKP activity was present in the basement membrane of the epididymal epithelium and the bloodvessel wall of subepithelial connective, tissue of the epididymal duct. G-6-P was distributed homogenously in the cytoplasm of the epithelial cells throughout the epididymal duct.The possible function of these enzymes in the rat epididymis are briefly discussed.

Connection between the superior colliculus(SC)and the dorsal and ventral lateral geniculate nuclei (LGd and LGv) were studied in adult golden hamsters using anterograde and retrograde pathway tracing methods 1. In four hamsters, the cytoarchitecture of the SC, LGd and LGv was examined in brain sections stained with Nissl's or Loyez's method. 2. A single injection of a mixture of ~3H-leucine and ~3H-proline was made into various regions of the SC in each of 4 animals (1 day survival) for studying the pattern of terminal distribution of the projections from the SC to the ipsilateral LGd and LGv. In animals where the injection site was located in the superficial gray layers of the lateral portion of the SC, labelled terminals were found in the caudal lateral part of the LGd and LGv. In the case where the injection was restricted in more medial part of the SC, the terminal labelling was observed in the rostral lateral portion of the lateral geniculate nuclei. 3. One day after an injection of horseradish peroxidase (HRP) into the LGd (4 animals), LGv(2 animals), or LP(2 animals) labelled neurons were observed in the superficial gray layers of the ipsilateral superior colliculus. No HRP-labelled neuron was detected in deeper laminae in the colliculus. These results indicate that neurons in the superficial gray layers of the SC project to the ipsilateral LGd and LGv, and the projections are organized topogra- phically according to the retinotopic or visual field map

This study is to investigate the effect and its possible mechanisms of lidamycin (LDM) combined with tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) in human non-small cell lung cancer (NSCLC) cells. MTT assay was used to determine the growth inhibition of the two ingredients on H460 cells. Apoptosis was examined by Annexin V-FITC/PI staining, flow cytometry assay and DNA-specific dye Hoechst 33342 staining. The level of TRAIL receptor and apoptosis-associated protein expression was detected by Western blotting analysis. The results showed that the IC50 value of LDM and TRAIL for H460 cells was 4.603 x 10(-10) mol x L(-1) and 915.3 ng x mL(-1) respectively, but the IC50 value of LDM was 3.064 x 10(-11) mol x L(-1) and 1.611 x 10(-11) mol x L(-1) when different concentrations of LDM was combined with 50 and 100 ng x mL(-1) TRAIL respectively. And the CDI value was less than 1. The apoptosis ratios also increased in the combination group relative to the single-agent treatment and the untreated control. Furthermore, the induction of the cleavage of PARP and the activation of Caspase-3 and Caspase-8 by the combination were more effective than LDM or TRAIL alone. At last, the level of death receptor 5 (DR5) expressions increased in a dose-dependent manner and time-related pattern. The data indicate that LDM inhibits the growth of H460 cells in vitro. DR5 induction contributes to enhancement of TRAIL-induced apoptosis by LDM in human non-small lung cancer cells.

OBJECTIVE:To study the effects of aripiprazole on PC12 cell injury induced by amyloid β-protein(Aβ25-35)and its mechanism. METHODS:PC12 cells were randomized into normal control group,model group (20 μmol/L Aβ25-35),aripiprazole low-concentration,medium-concentration and high-concentration groups(5,10,20 μmol/L aripiprazole+20 μmol/L Aβ25-35). These groups were cultured with culture medium containing relevant medicine for 48 h,with 6 wells in each group. The viability(optical density value)of PC12 cell was measured by MTT assay,and PC12 cell apoptosis was measured by Hoechst staining. The activi-ties of Caspase-3 and Caspase-9 were determined by spectrophotometry. The protein expression of Bcl-2,Bax and PI3K and the phosphorylation of Akt were assayed by Western blot assay. RESULTS:Compared with normal control group,optical density value of model group was decreased while apoptotic rate was increased;the activities of Caspase-3 and Caspase-9,and the protein expres-sion of Bax were increased;the protein expression of Bcl-2 and PI3K,the phosphorylation of Akt were decreased(P<0.01). Com-pared with model group,optical density value of aripiprazole low-concentration,medium-concentration and high-concentration groups were increased,while apoptotic rate and the activities of Caspase-3 and Caspase-9 were decreased;the protein expression of Bcl-2 and PI3K and the phosphorylation of Akt were enhanced;while the protein expression of Bax were decreased in aripiprazole medium-concentration and high-concentration groups(P<0.05 or P<0.01). CONCLUSIONS:Aripiprazole can suppress cell apop-tosis of PC12 cell induced by Aβ25-35,which is related to activating PI3K/Akt signal pathway.

Locally advanced nasopharyngeal carcinoma ( NPC) invaded with paranasal sinus as death is associated with disease and independent prognostic factors for local recurrence .Its symptoms are various and atyp-ical,and often causes misdiagnosis or missed diagnosis .Local recurrence and distant metastasis are the main cause of treatment fails .Currently , there are few literature about NPC intruding paranasal sinus .Its occurrence rate,clinical manifestation,imageological change,intruding pathways,diagnosis,treatment and prognosis are sum-marized in this paper .

Traumatic asphyxia is a result of sudden or severe compression of the thorax and/or the upper abdomen.A sudden increase of intravascular pressure transmitted to the intra-and extracerebral vessels may cause petechial hemorrhage in the brain and in the skin over the head,face,neck and shoulder regions.Severe cerebral anoxia accompanying the injury may lead to cerebral edema and the appearance of signs of increased intracranial pressure as well as ARDS following hypoxemia.Spinal puncture and EEG are helpful in early diagnosis.The essential therapeutic measures consist of improvement in ventilation,dehydration and the use of glucocorticoid hormones.By such manoeuvres,11 of 12 patients we treated recovered satisfactorily and only 1 of them succumbed.

As a kind of pesticide, fungicide and preservative, PCP had been used extensively in industry, agriculture and domesticity throughout the world. PCP contamination is generally associated with sediments or soil, it can also concentrate in organism. Regarding the character of high toxicity, long persistence and difficult to degrade, PCP has become a kind of conspicuous environmental pollutant because of widely use and inappropriate disposal. In the contaminated area, PCP can be detected in the water, soil and the body of organisms. PCP can affect human health through directly exposure or through food chain. The absorbed PCP can be stored in liver, kidney and fat,it can also increase the incidence rate of tumork, disturb the endocrine system, affect immune function,inhibit reproduction and development. PCP not only has a direct impairment on human body but also shows a potential impact in genetics.

Objective To do the environmental impact assessment for the water supply project of Mopan Mountain Reservoir in Harbin. Methods To collect the related data and to do the field-investigation and inspection in epidemiology, animals and insects, environmental quality sanitization and water quality, etc in the area of Mopan Mountain Reservoir and the surroundings. Results The main infectious disease in the development area of Mopan Mountain Reservoir was at the lower prevalence level and there was no fatal infectious disease such as plague , cholera in the recent ten years. Besides, there was no grievous public health emergency. There were no factories and collieries emitted poisonous chemical material in the catchment area. The results of water quality investigation showed that all the indexes were up to the related standards. Conclusion Monpan Mountain Reservoir project is not ease to cause the infectious diseases spread by water among the people. The water quality can meet the request for water source. The reservoir will not influence the ecological environment when the latent environment pollution factors are under control.

[Objective] To observe the clinical effect of Shenfu Decoction and Compound Red Sage Injection on new infants respiratory distress syndrome.[Method] Randomly divide 42 cases into 2 groups,control group(1)take the integrated therapy:CPAP,oxgen,warming,keeping wet and anti-bacterial;the treatment group(1)take the Shenfu Decoction and Compound Red Sage Injection.Compare their cure rates after 7d.[Result] In group 1,survivable rate was 95.23%,cure rate 71.4%;and 80.95% and 47.62% respectively for other group;the clinical symptoms,signs,blood-gas analysis and X-ray result were all better in group 1 than group 2.[Conclusion] Oral taking Shenfu Decoction and Compound Red Sage Injection for vein drip can help relieve infants clinical symptoms and pass alveolus superficial active substance lack period.