Objective:To investigate the effects of telmisartan on the expressions of activin A and its receptors in non-infarction area of left ventricle in the heart failure rats after myocardial infarction,and to clarify the mechanism of improvement effect of telmisartan on myocardial collagen deposition.Methods:A total of 27 rats were divided into sham operation group(n=9),model group(n=20) and telmistartan group(n=10).The left anterior descending coronary arteries of the rats in model group and telmisartan groupwere ligated,and the left anterior descending coronary arteries of the rats in sham operation group were not ligated.After 5 weeks,there were 6 surviving rats in each group.The rats in sham operation group were treated with 0.5%CMC(10 mL·kg-1),the rats in model group were treated with 0.5%CMC (10 mL·kg-1),and the rats in telmisartan group were treated with telmisartan (30 mg·kg-1).All the rats were treated with medicines by intragastric administration for 4 weeks.The whole cardiac hypertrophy index and left ventricular hypertrophy index of the rats were measured;the mRNA expression levels of activin A,ActRⅡA,ActRⅡB,ColⅠ,and ColⅢ in the non-infarction areaof the rats were detected by RT-PCR and the ratio of ColⅠ/ ColⅢ was calculated;the expression intensities of activin A protein in the myocardium tissue in non-infarction area of the rats in various groups were observed by immunohistochemical staining.Results:Compared with sham operation group,the whole cardiac hypertrophy index and left ventricular hypertrophy index of the rats in model group were significantly increased (P<0.01);the mRNA expression levels of activin A,ActRⅡA and ActRⅡB,ColⅠ,ColⅢ and the ratio of ColⅠ/ColⅢ were also increased (P<0.01).The immunohistochemical staining results showed that the expression level of activin A protein in noninfarction area of left ventricle of the rats in sham operation group was lower,and the expression level of activin A protein in non-infarction area of left ventricle of the rats in model group was higher.Conclusion:Telmisartan may improve the myocardial collagen deposition by inhibiting the expressions of activin A and its receptors during heart failure.

The study on mycoflora in bottled purified d rinking water was carried out.91 Samples of products were colleted from 59 bottl ing factories in Fujian Province and were examined and identified.461 Strains of fungi were isolated from 58(63 74%)different samples.Fungi imperfecti was the e umycetes isolated most frequently.These fungi were not closely related to the ae robic bacterial count and coliform of the studied waters but was clearly associa ted with the packaging of the products.The result confirmed that the cross conta minations on the process of post-purification were the main source of fungi in the final products.

A simple and sensitive method was developed to screen ?-PL p ro duced strains from soils. 150mg/L K_2Cr_2O_7 was added to th e solid medium for actinomycetes enriching. A basic dye, methylene blue, incorp orated in the agar plate to detect alkali producers, because dye reacted with th e secreted basic polymers by electrostatic interaction with the secreted basic p dymers and formed special zoon. And then dragendorff regent was used to detect alkaloid producers. Four ?-PL producers were obtained by TLC analysis. Meanw hile, phylogenetic analysis of PL6-3 strain, including morphology, physiologica l and biochemical characters and chemotaxomy were performed and phylogenetic tre e was constructed based on the 16S rDNA sequences. And the results indicated th at PL6-3 strain is a member of Kitasatospora.

Adolescent ; Adult ; Aged ; Facial Paralysis ; therapy ; Female ; Hemorrhage ; Humans ; Male ; Middle Aged ; Needles ; Young Adult

Objective To study the effect of low-dose FK778 in preventing chronic renal al- lograft rejection in rats.Methods The rat model of chronic renal allograft rejection was established by using micro-surgery technique.The recipients were divided into two groups.The recipients in the study group were treated with FK778 at a dose of 5mg?kg~(-1)?d~(-1)dissolved in carboxymethylcellulose by means of gavage and the controls were treated with carboxymethylcellulose.Urinary protein con- centrations were measured every 4 weeks for 24 weeks.On 24th week after operation,the rats were killed and the kidney grafts were taken out for histological and immunohistological examinations as well as quantitative real-time RT-PCR analysis.Results After 24 weeks of treatment,proteinuria, the severity of chronic rejection,glomeruIosclerosicytes and monocytes/macrophages in the study group were significantly milder than in control group.And the expression of TGF-?mRNA and PDGF-B mRNA was significantly reduced in the study group as compared with that in the control group.Conclusion Low-dose of FK778 might prevent the rats from chronic renal allograft rejection.

Objective:To observe the clinical efficacy of point application with Da Huang (Rhizoma Rhei Cruda) powder at Shenque (CV 8) plus moxa-salt hot compress on the umbilicus for preventing gastrointestinal adverse reactions after chemotherapy for non-Hodgkin lymphoma (NHL).Methods:A total of 60 cases with NHL under chemotherapy were divided into two groups by hospitalization order,with 30 cases in each group.The control group was treated with routine nursing and the observation group was additionally given point application with Da Huang (Rhizoma Rhei Cruda) powder plus moxa-salt hot compress on the umbilicus,to compare the effect in preventing gastrointestinal adverse reactions after chemotherapy between the two groups.Results:The occurrence rates of constipation,nausea,vomiting and poor appetite on the second day and fifth day after chemotherapy were obviously lower in the observation group than those in the control group,with statistically significant differences between the two groups (all P＜0.05).Conclusion:The point application with Da Huang (Rhizoma Rhei Cruda) powder at Shenque (CV 8) plus maxa-salt hot compress on the umbilicus can produce more significant efficacy in preventing the gastrointestinal adverse reactions after chemotherapy for NHL than routine nursing.Moreover,it is simple and easy to be used and popularized.

Objective To explore the association of the calcitonin receptor (CTR) allelic polymor- phism in the 1377 bp region with the risk of idiopathic hypercalciuria (IH) in the Han nationality in Hubei area,and to study the pathogenesis of IH.Methods The CTR genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism in 76 patients with IH and 126 healthy controls from the Han nationality in Hubei area,using restriction endonuclease AluI.Results The distribution frequen- cies of AluI alleles in the 2 groups followed the Hardy-Weinberg equilibrium.The distribution frequencies of the CC,TC and TT genotypes were 73.7% ,17.1% and 9.2% in IH patient group,and 89.7% ,9.5% and 0.8% in control group;the distribution frequencies of C and T alleles in the 2 groups were 84.2% ,15.8% and 94.4% ,5.6% ,respectively.The distribution frequencies of T and TT alleles were higher,while those of C and CC alleles were lower,compared with control group;the differences between the 2 groups were signifi- cant (P＜0.05).Conclusions The results indicate that the C/T single nucleotide polymorphism in the CTR gene play a significant role in the mechanism of IH in the Han nationality in Hubei area in China.

BACKGROUND: The permeability of blood-retinal barrier in rats can be increased due to the exposure under infrasound. There is rare research on ionic mechanism of such damage to barrier because of lacking the sources of retinal microvascular endothelial cells.OBJECTIVE: To investigate the impact of infrasound on calcium-activated potassium channel(BKca) of bovine retinal microvascular endothelial cells (BRECs).DESIGN: A completely randomized controlled opening study.SETTING and MATERIALS: The research was conducted in the Laboratory for patch-clamp, Department of Clinical Aerospace Medicine, Fourth Military Medical University of Chinese PLA. Experimental subjects were BRECs cultured.INTERVENTIONS: The cultured BRECs were exposed to the infrasound of 8 Hz, 130 dB for 30 minutes.MAIN OUTCOME MEASURES: The activity of BKCa in BRECs was observed.RESULTS: The activity of BKCa channel in BRECs increased after the exposure of infrasound of 8 Hz, 130 dB for 30 minutes. BRECs were cultured in an incubation cabin for 30 minutes after exposure for another detection by patch-clamp ionic current, and the increased BKCa channel activity slightly decresed.CONCLUSION: The breakdown of blood-retinal barrier under infrasound is partly due to the stimulatory effect of infrasound on Ca2 +-activated-K +channel, which will cause membranous depolarization providing the driving force of Ca2+ influx on BRECs.

Objective To explore the clinicopathological characteristics of non-muscle-invasive bladder cancer patients association with chronic kidney disease (CKD).Methods Between Jan 2009 and Dec 2010,536 patients (390 males and 146 females with mean age of 63 years) underwent surgical treatment at our institute for pathologically proven non-muscle-invasive bladder cancer.The clinical and pathological data of these patients were reviewed,and the relationships of these factors and CKD were analyzed.Presence of CKD was confirmed in patients with estimated glomerular filtration rate (eGFR)＜ 60ml/(min · 1.73 m2)calculated using the Modification of Diet in Renal Disease Study equation.Results Of the 536 consecutive cases,57 patients (10.6％) had CKD.Compared to the patients without CKD,there were more females and older patients in the patients with CKD (52.6％ vs 24.2％ and 69 years vs 62 years,both P ＜ 0.05).The patients with CKD proned to have multiple bladder tumor (71.9％ vs 50.9％,P ＜ 0.05) and synchronous upper urinary tract urothelial carcinoma (7.0％ vs 2.3％,P ＜0.05).The history of bladder cancer and upper urinary tract urothelial carcinoma were also predominated in these patients (43.9％ vs 29.0％ and 40.4％ vs 6.5％,both P ＜ 0.05).ConclusionConcurrent CKD in non-muscle-invasive bladder cancer patients is associated with greater risk of multiple tumors in urinary tract,particularly in female patients.

Objective To evaluate the effect of curcumin on the proliferation of and apoptosis in HaCaT cells induced by tumor necrosis factor α (TNF-α).Methods HaCaT cells were cultured with the presence of different concentrations (0,1,5,10,25,50,100 ng/ml) of recombinant TNF-α,curcumin of 20 μmol/L,or the combination of recombinant TNF-α (25 ng/ml) and curcumin (20 μmol/L),for 24 hours followed by the determination of cell proliferation with methyl thiazolyl tetrazolium (MTT) assay.Western blot was conducted to measure the protein expression of proliferating cell nuclear antigen (PCNA) and Notch-1 in HaCaT cells treated with recombinant TNF-α (25 ng/ml) and curcumin (20 μ mol/L) alone or in combination for 24 hours.Flow cytometry using annexin-V/propidium iodine (PI) was performed to assess the early apoptosis in HaCaT cells incubated with recombinant TNF-α of 25 ng/ml and curcumin of 20 μmol/L alone or in combination for 12 hours.Statistical analysis was carried out with one-way analysis of variance.Results Recombinant TNF-α promoted the proliferation of HaCaT cells in a dose-dependent manner,with the maximum proliferation activity observed in HaCaT cells treated with TNF-α of 25 ng/ml,while curcumin of 20 μmol/L effectively inhibited the proliferation of HaCaT cells induced by TNF-α of 25 ng/ml (P ＜ 0.01).TNF-α of 25 ng/ml had no obvious effect on cell apoptosis,while curcumin of 20 μ mol/L markedly induced the apoptosis in HaCaT cells,and there was a synergy between TNF-α of 25 ng/ml and curcumin of 20 μmol/L in the induction of apoptosis in HaCaT cells,with the apoptosis rate being 2.3％,3.4％,11.6％ and 16.8％ respectively in untreated cells,cells treated with TNF-α,curcumin,and the combination of TNF-α and curcumin,respectively.Conclusions Curcumin could enhance the inductive effect of TNF-α on the apoptosis in,but suppress the promotive effect of TNF-α on the proliferation of,HaCaT cells.