The status of health care for elderly in 110 community health service (CHS) centers of Bao'an District was surveyed.Data were collected from directors,health care managers and health workers in CHS centers by questionnaire.The results showed that the establishment of health file was satisfactory.but the management of health file needed to be strengthened,particularly for those required special care.The nutritional and psychological counseling should be specially focused.

Tandem-pore-domain potassium channels are a diverse and highly regulated superfamily of channels that are thought to provide baseline regulation of membrane excitability. Of these, TREK are highly expressed in human CNS. TREK can be regulated by both physical and chemical factors. Lately, study on knockout animals suggested that TREK-1 might participate in the process of general anesthesia of some anesthetics.

Objective To determine the urine lead level in school_age children under conditions of environmental lead exposure and evaluate the effects of the presence of body lead on IQ, academic achievement and behavior in school of these children. Methods The concentrations of urine lead and IQs for 118 children aged 7～12 were measured. The academic achievement, behavior in school and the correlated factors were derived from the questionnaires given to their teachers and parents. Results The urine lead level of 118 children was (7.04?3.53)?g/L. In children who lived in city central area the urine lead level was (7.71?3.52)?g/L. It was significantly higher than that of children who lived in a suburban area [(6.37?3.45)?g/L]; No significant differences were observed in IQ between children in city and suburbs. The results by single factor analysis showed that the urine lead level [(10.31?2.16)?g/L] in the lower IQ group (IQ

ve To assess the cytogenetic toxicological safety of fish raised in water containing effluent. Methods The mutagenecity of organic extracts of uncooked meat specimens of fish raised in fishpond water mixed with sewage water taken from South and North Sewer Drainage Canals of Tianjin was detected by mice bone marrow micronucleus test. Results The organic extracts of uncooked fish meat specimens showed positive result for all of the 3 observed groups of fish raised in water of fish ponds with sewage, and negative result for fish raised in clean fishpond water in micronucleus test. Conclusion The results indicated that some kinds of organic mutagenic compounds ex-isted in the uncooked meat of fish raised in fishpond water containing effluent, which might have some potentially hazardous effects on human health through the food chains.

Objective To study the mutagenicity of fish-raising water containing effluent. Methods The niuta-genieities of water samples from waste water canal, the fish-raising water(fish-pond water) treated by presedimenta-tion in oxidation tank were detected using micronucleus test of vicia faba root tip cells. The micronucleus test of peripheral red blood cells was carried out among fish raised in water containing effluent. The water samples and fish collected from reservoir as controls. Results The micronucleus test of vicia faba root tip cells showed that the micronucleus rates in treated fish-pond water and waste water were significantly higher than those of negative control group (distilled water) (P 0.05) . The frequencies of micronucleus in peripheral red blood cells of fish raised in treated fish-pond water were significantly higher than those of fish raised in reservior water (P

Objective To evaluate the mutagenicity of mercury, cadmium, arsenic, chromium(Ⅵ)and lead in water on Vicia faba root tip cells. Methods The micronucleus assay of Vicia faba root tip cells were conducted to determine micronucleus rate of Vicia faba root tip cells induced by mercury (0.000 5-1.0 mg/L), cadmium (0.005-1.0 mg/L), arsenic(0.05-2.0 mg/L), chromium (Ⅵ) (0.05-2.0 mg/L) and lead (0.05-3.0 mg/L ) ,and pollution indexes were calculated. Results When the concentration of mercury was ≥ 0.5 mg/L, cadmium ≥ 0.1 mg/L, arsenic ≥ 0.5 mg/L and chromium(Ⅵ)≥ 2.0 mg/L in the water, the micronucleus rate were significantly higher compared with the negative control group, respectively(P

Objective To investigate the effect of ketamine on the delayed rectifier outward potassium currents (IK) using whole-cell patch clamp technique. Methods Pyramidal neurons were enzymatically isolated from Wistar rat hippocampus. The effect of ketamine on the IK was assessed using whole-cell patch clamp technique. We measured the amplitude of the delayed outward rectifier IK by activating depolarizing pulse from -50 mV to 40 mV. Different concentrations of ketamine were added and potassium currents were measured. Results IK was inhibited by ketamine in a concentration-dependent manner. The five concentrations of ketamine (10, 30, 100, 300, 1000 ?mol/L) reduced peak IK currents by (10 ? 4)% , (19?4)%, (31 ?5)%, (50?7)%, (54?8) % respectively, with a mean IC50 of (100?18)?mol/L and Hill coefficient of 1.33?0.48. The V1/2 of activation curve was shifted from (1.82 ? 0.20) mV to (9.30 ? 1.03) mV (n = 8, P

Cerebral microbleeds are a research focus in the field of cerebrovascular disease in recent years.Cerebral microbleeds have important influence on recurrent stroke,hemorrhagic transformation,cognitive impairment,and treatment options in patients with ischemic stroke.The article reviews the above aspects.

Objective To discuss the preventive and curative effect of Kanghuier transparent dressing on prevention of vascular and local tissure injury induced by continous dripping of 5-fluorouracil.Methods Patients(128 cases)were divided into the observation group and the control group with 64 cases in each group.Cleaning of the local skin around puncture point and use of Kanghuier transparent dressing were adopted in the observation group.The control group receivecl no vascular protective measures.The effect of phlebitis prevention was compared between the two groups.Results Statistical difference existed in the incidence rate of phlebitis between the two groups(P＜0.01),the rate of the observation group was lower than that of the control group.Conclusion Kanghuier transparent dressing can prevent the vascular and local tissure injury caused by chemotherapy for tumor patients.

Objective To investigate the expression of vascular endothelial cell growth factor-C (VEGF-C) and its receptor--vascular endothelial cell growth factor receptor-3 (VEGFR-3) in breast cancer tissue and its correlation with metastasis of lymphonodi axillares.Methods Fifty-eight cases of breast cancer samples and 10 cases of tumor adjacent non-carcinomatous tissue were measured by immunohistochemical staining for expression of VEGF-C and VEGFR-3. Their expression rates were compared between axillary lymph node metastasis and non-metastasis groups.Results The positive rates of VEGF-C and VEGFR-3 as well as the number of VEGFR-3 positive vessels were significantly higher than those in lymph node non-metastasis group (87.5% vs 55.9%; 83.3% vs 38.2%; 8.54±2.54 vs 4.73±2.46, respectively).Conclusion The high expression of VEGF-C and VEGFR-3 as well as the increase in the number of VEGFR-3 positive vessels are related to lymph node metastasis of human breast cancer. VEGF-C/VEGFR-3 system may be a new specific target which contributes to blockage of lymphatic metastasis in breast cancer.