ObjectivesTo observe correlation between serum vitamin A status and prevalence or severity of NRDS. MethodsRecruited into this study were 166 preterm infants admitted to our neonatal department. The serum concentration of vitamin A was measured, and the prevalence of NRDS at different levels of vitamin A was compared. According to the clinical manifestation and X-rays, there were 30 infants diagnosed as NRDS. Another 30 patients from the rest 133 infants without NRDS were randomly selected as control group according to the gestational ages, then the difference between NRDS group and control group were observed according to gestational ages. The 30 preterm infants with NRDS were divided further into mild group (in-cluding stagesⅠandⅡ,n=18) and severe group (including stageⅢ andⅣ,n=12) according to ifndings chest X-ray, then the difference between these two groups were observed.ResultsIn the 166 preterm infants recruited, 65/166 had serum vitamin A lower than 0.35 μmol/L, in which 14/65 (21.54%) were NRDS patients. Another 93/166 patients had serum vitamin A ranged from 0.35 μmol/L to 0.7 μmol/L, in which 15/93 (16.13%) were NRDS patient. The rest 8/166 had serum vitamin A higher than 0.7 μmol/L, in which 1/8 (12.50%) were NRDS patient. However, the differences between each two groups were not signiifcant. When gestational ages ranged from 34 to 37 weeks, the serum concentrations of vitamin A of NRDS group were lower than that in controls (P<0.05). No signiifcant difference between the serum concentrations of vitamin A and the severity of NRDS were ob-served (P>0.05).ConclusionsThe prevalence of NRDS for those preterm infants lacking of vitamin A was tended to increase. And the late preterm infants (34 w≤ GA <37 w) with vitamin A deifciency are prone to NRDS.

BACKGROUND: Focal adhesion kinase (FAK) phosphorylation influences the proliferation, migration and apoptosis of cells. However, there are no reports about the role of FAK phosphorylation in migration and proliferation of vascular smooth muscle cells during the process of vascular restenosis.OBJECTIVE : To analyze the correlation between FAK phosphorylation and vascular remodeling after balloon endothelial denudation in rats.DESIGN: Random controlled experiments in animals.SETTING: Cardiology Institute of Xianning College; Shenzhen Center for Chronic Disease Prevention and Control;Department of Cardiology at the Affiliated Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology.MATERrALS: The experiment was carried out in the Laboratory of Cardiology at the Affiliated Tongji Hospital from March to May in 2005. Forty male Wistar rats were used in the study, and they were managed according to the ethical standard of animals.METHODS: ①Forty rats were randomized into five groups (n =8): non-balloon endothelial denudation control group, and 4-day, 8-day, 16-day and 24-day model groups after balloon endothelial denudation. ②The rat models of restenosis following balloon endothelial denudation were built. At days 4, 8, 16 and 24 postoperatively, the denudated vessels were harvested for the detection of the morphological changes, which were taken as the judgment of successful models;Western blot method was used to detect the expression and activity of FAK. Abdominal aorta of left common carotid in rats was served as controls.MAIN OUTCOME MEASURES: The expressions of FAK and phosphorylation FAK in rat artery.RESULTS: Totally 40 rats were all involved in the result analysis.①A small quantity of FAK without phosphorylation could be detected in the controlled rats. Compared with the control group, the expression and activity of FAK in the model group rapidly increased at 4 days after balloon injury (P ＜ 0.05), and they changed in a similar manner with the increase of injury duration. The expression of FAK reached a peak at 8 days and began to descend at 16 days. The expression of phosphorylation FAK reached a peak at 16 days and then rapidly descended. ②Focal hyperplasia of intima was found at 8 days after balloon endothelial denudation, and diffuse hyperplasia of intima was found at 16-24 days after denudation.CONCLUSION: FAK can take part in vascular remodeling after balloon endothelial denudation in rats. The level of intimal hyperplasia is closely associated with the level of FAK and FAK phosphorylation.

Objective:To detect depression in stroke patients and observe its influence on rehabilitation of neurological function and the effect of fluxetine therapy Methods:132 acute stroke patients (78 with infarction, 54 with hemorrhage) were included in the study After inclusion, we did five times of assessments at the end of 2 weeks, 1 month, 3 months, 6 months and 1 year respectively using HAMD assessment to determine whether there had depression or not, as well as SSS (modified Edingburgh-Scandinavian Scoring Scale) for neurological function, ADL (activity of daily living), and self rate depression and anxiety (Zung's self rate depression scale and anxiety scale) Of those with depression, 25 received fluxetine 20mg/d, other 32 with only regular treatment of stroke as control Results:According to results of HAMD, 59 of the 132 had depression (44 7%) The rate of depression had no significant difference between male and female, between those with infarction and with hemorrhage Depression had negative influence on neurological function and activity of daily living Depression had no relation to location, size and unilateral or bilateral of the loci Fluxetine improved depression, neurological function and activity of daily living from 3 months after stroke; its influence on neurological impairment was most significant at 1 year after stroke Conclusion: Post stroke depression is common after cerebral infarction or hemorrhage, it has negative influence on rehabilitation of neurological function and activity of daily living Fluxetine improves both neurological impairments and activity of daily function, as the same time of its improvement of depression

Objective To observe the changes of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) in plasma and the correlation of ANP and BNP with hemodynamic parameters in patients with sinus rhythm or atrial fibrillation after percutanous balloon mitral valvuloplasty (PBMV). Methods Thirty-six patients with rheumatic mitral stenosis undergoing first time successful PBMV were enrolled in the study. Among a total of 36 patients, 11 were in sinus rhythm (SR group) and 25 had atrial fibrillation (Af group). The levels of ANP and BNP were assayed before and at 1 day and 3 days after the procedure. Hemodynamic parameters were measured by echocardiography and left atrial pressure (LAP) and pulmonary artery pressure (PAP) were assessed instantly by cardiac catheter before and after PBMV. Results After PBMV,the ANP levels gradually decreased (216.09?73.84 pg/mL; 188.70?59.22 pg/mL; 140.70?41.53 pg/mL, respectively, before, at one day and three days after procedure, P

OBJECTIVE:To verify the effect of Weichangkang capsule(WCK) on the function of gastrointestinal tract.MET-HODS:The effects on movement of charcoal powder in mice and secretion of digestive enzyme and absorption of D-xylopyranose into serum in rats were studied.RESULTS:WCK capsule markedly increased the movement of charcoal powder in mice,secretion of digestive enzyme and absorption of D-xylopyranose into serum in rats.CONCLUSION:WCK capsule could obviously improve the dysfunction of gastrointestinal tract.

Objective To elucidate clinical and pathological features of obesity-associated focalsegmental glomerulosclerosis(FSGS). Methods Clinicopathological data of thirteen obese cases (BMI3≥28kg/m2) with FSGS(OB-FSGS) and thirteen non-obese cases(BMI

Objective To explore the relationship of human cytomegalovirus(HCMV) infection and infantal epilepsy.Methods Fluorescence quantitative polymerase chain reaction was employed to detect the urine HCMV-DNA in 20 healthy children and 52 infants with epilepsy,and the changes in head CT scanning and brainstem auditory evoked potential were determined in HCMV positive and negative epilepsy infants.Results Positive HCMV-DNA was found in 31(59.62%)infants with epilepsy and 6(30%)healthy infants,there was significant difference between two groups(P

Abdominal multivisceral transplantation is a new and proved effective therapeutic methods for two or more terminal abdominal organs. Upper abdominal exenteration(resection of the liver,stomach,spleen,pancreaticoduodenal complex,and part of the colon) for the treatment of otherwise unresectable tumors is one of the more radical operations in oncology.Some new surgical methods such as liver-intestinal,liver-kidney,pancreas-kidney and multivisceral cluster transplantation have emerged recently.These new advance surgical approache improve the curative effect of abdominal organ transplantation.

Objective To investigate the clinical efficacy of Lu’s warm needling in treating perimenopausal syndrome.Methods Sixty patients with perimenopausal syndrome were randomly allocated to treatment and control groups, 30 cases each. The treatment group received Lu’s warm needling and the control group, conventional acupuncture. The scores of Kupperman Index (KI), Pittsburgh Sleep Quality Index (PSQI) and Hamilton Depression Scale (HAMD), and serum estrogen (E2), follicle stimulating hormone (FSH) and luteal hormone (LH) were observed before and after treatment. The clinical therapeutic effects were compared between the two groups.Results The total efficacy rate was 80.0% in the treatment group and 53.3% in the control group; there was a statistically significant difference between the two groups (P<0.05). There was a statistically significant pre-/post-treatment difference in the KI score in the two groups (P<0.01). There was a statistically significant difference in pre-/post-treatment KI score difference value between the treatment and control groups (P<0.05). There were statistically significant pre-/post-treatment differences in serum LH, FSH and E2 contents in the two groups (P<0.05). There were statistically significant pre-/post-treatment differences in the Hamilton Depression Scale score and the Pittsburgh Sleep Quality Index score in the two groups (P<0.01, P<0.05). There was a statistically significant post-treatment difference in the Hamilton Depression Scale score between the treatment and control groups (P<0.05).Conclusion Lu’s warm needling is an effective way to treat perimenopausal syndrome.

Polyketides are very large group of natural products with functional and structural diversity.Most of them are produced by microor- ganism and have medicinal activities,including antibiotic,anticancer,antifungal and antiparasitic properties.The researchs in this area have progressed greatly.More and more polyketides are discovered,on the other hand the mechanisms of biosynthesis of those various polyketides are researched more deeply and clearly.The article reviewed the progress of the research in the diversity of polyketide synthases and the mechanisms of polyketide biosynthesise.