Objective:To explore trend of congenital heart disease (CHD) ,analyze its epidemiological features and risk factors .Methods :A total of 2415 children diagnosed as CHD in our hospital from Jan 2012 to Jan 2015 were en‐rolled as CHD group ,another .Detection rate of every year ,constitution type and constituent ratio of each age group for CHD were counted .Multifactor Logistic regression analysis was used to analyze independent risk factors and protective factors of CHD .Results:CHD detection rate of 2012 ,2013 and 2014 was 19.42% ,34.99% and 45.59% respectively ,showing an increasing trend (P=0.018 ,0.107) .The top three types of CHD were atrial sep‐tal defect (ASD , 37.31% ) , ventricular septal defect (VSD , 30.97% ) and patent ductus arteriosus (PDA , 13.71% ) .Comparison among all age groups found that <1 year group occupied the highest proportion for all types of CHD ,prevalence rate of all types of CHD showed a gradual decreasing trend in > 1 year children ;< 4 years CHD children occupied 74. 95% for all CHD children .Multifactor Logistic regression analysis indicated that educa‐tion level of mother was independent protective factor for CHD [OR=0.488 ,P=0.011] ,threatened abortion his‐tory ,smoking history of father and interior renovation during pregnancy were independent risk factors for CHD [OR=1.748~7.151 ,P<0.05 or <0.01] .Conclusion:Detection rate of congenital heart disease shows a gradual increasing trend in recent years ,periodic inspection and early intervention focus on parents status and environmental factors must be performed in order to achieve goals of early diagnosis ,prevention and treatment .

Objective To explore the inhibition of fusing antimicrobial peptides humanβ-defensin 3 and carbohydrate binding do-main on Staphylococcus aureus N315 and Staphylococcus epidermidis 35984.Methods The direct bactericidal test and other molec-ular biology methods were adopted to detect the inhibition role on Staphylococcus aureus strain N315 and Staphylococcus epidermi-dis strain 35984 and the influence on the key genes expression.Results The direct bactericidal test demonstrated that antimicrobial peptides hBD3 and hBD3-CBD had significantly inhibitory effects on staphylococcus aureus N315 and staphylococcus epidermidis 35984;the inhibitory effects of hBD3-CBD was stronger than that of hBD3;the stability of the inhibitory effects of hBD3-CBD also stronger than that of hBD3.In the key gene expression test,there were significant inhibitions on the agr and mecA gene expressions in Staphylococcus aureus N315 and Staphylococcus epidermidis 35984 by hBD3-CBD.At the same time,hBD3-CBD could inhibit the icaA gene expression and promote icaR gene expression in Staphylococcus epidermidis 35984,which indicated that hBD3-CBD could inhibit the biofilm formation of Staphylococcus epidermidis.Conclusion The fusion strategy of antimicrobial peptide has very important significance for improving the antibacterial efficacy of antimicrobial peptides and brings more hope in their future applications.

The experiments of rabbit mydriasis & isolated cat ciliare muscle paralysis of atropine Methobromide (AMB) have demonstrated that : AMB has much larger mydriasis effect. It effects faster than Atropine Sulfate, Homatropine & Tropinexamide in acetylcholin -induced ciliare muscle contraction. The combined-force of AMB on ciliare muscle is less than Atropine & Homatropine, but a little larger than Tropinexamide. There fore AMB is a rapid & short-time mydriasis agent & ciliare muscle paralysis agent.

Objective To screen and clone the genes related to stilbene glucosides biosynthesis in Polygonum multiflorum Thunb. Methods The differentially expressed genes in the root, stem and leaf of Polygonum multiflorum which have different contents of stilbene glucosides were screened by differential display reverse transcription polymerase chain reaction (DDRT-PCR). After pMD19-T carrier was inserted into the obtained differential genes for sequencing and comparison, the gene function was analyzed. Results Fifty-one differentially expressed cDNA fragments were found. Of them, 9 were used for the identification by semi-quantitative PCR. The identification results presented 3 positive fragments, one fragment was specifically expressed in the stem and leaf of Polygon-um multiflorum Thunb., sharing high homology with glycine dehydrogenase, and 2 were specifically expressed in the root of Polygonum multiflorum Thunb., having high homology with enoyl-CoA hydratase and aminopeptidase N, respectively. Conclusion Three homologous gene sequences obtained through DDRT-PCR provide a basis for the further study of biosynthetic pathway of stilbene glucoside from Polygonum multiflorum Thunb..

Objective To investigate any neuroprotective effect of hyperbaric oxygenation (HBO) on the mitochondria of dopaminergic neurons using a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse model of Parkinson's disease.Methods Forty-eight male SPF C57BL/6 mice were randomly assigned to either a normal control group (treated with a 30 ml/kg intraperitoneal injection of physiological saline once a day),a model group ( treated with a 30 mg/kg intraperitoneal injection of MPTP once a day) or an HBO therapy group ( treated with a 30 mg/kg intraperitoneal injection of MPTP and HBO once a day).The expression of tyrosine hydroxylase (TH) protein,PINK1 protein and caspase-3 in brain tissue was measured using immunohistochemistry and Western blotting assays.Results Compared with the control group,the expression levels of TH protein and PINK1 protein were significantly lower in the neurons of the substantia nigra in the model mice.HBO therapy upregulated the expression of TH and PINK1 protein.Compared with the control group,the average level of caspase-3 protein in the neurons of the substantia nigra in the model mice was significantly higher.HBO therapy downregulates the expression of caspase-3 protein.Conclusions HBO can protect mitochondria and inhibit apoptosis of dopaminergic neurons in the substantia nigra of brains with (MPTP-induced) Parkinson's disease by upregulating the expression of PINK1 protein and TH protein,and downregulating the expression of caspase-3 protein.

Objective To investigate the phosphorylation of tau protein and the effect of atorvastatin on tau protein phosphorylation in hypercholesteremic mouse hippocampus. Methods Male Kunming mice were randomly divided into normal control group, hypercholesteremia group, and low-dose atorvastatin treatment group (8mg·kg-1·d-1), middle-dose group (15mg·kg-1·d-1),and high-dose group (20mg·kg-1·d-1) with five mice in each group. The hypercholesteremia mouse model was induced by cholesterol-enriched diets. The expression level of tau protein phosphorylation in mouse hippocampus was detected by Western blot and immunohistochemistry methods. The activities of mitogen-activated protein kinase (MAPK) and cyelin dependent kinase 5 (Cdk-5) were measured by liquid scintillation counting of the hippocampus incorporated radioactivity and immunoprecipetation activity assay respectively. Results In hypercholesteremic group, the expression level of tau protein phosphorylation in mouse hippocampus was significantly increased(F=14.761,P＜0.01)as compared with control group, and so were MAPK activity and Cdk-5 activity(all P＜0.01). Atorvastatin treatment group showed the decreased expression level of tau protein phosphorylation at ser396/404 site in low-dose group (F=6.349,P＜0.05),middle-dose group (F=10.283,P＜0.01) and high-dose group (F=10.511,P＜0.01) as compared with hypercholesteremia mouse group. The activities of MAPK and Cdk-5 were decreased along with the increasing atorvastatin doses. Conclusions Hypercholesteremia induces tau protein hyperphosphorylation in mouse hippocampus. Abnormal cholesterol metabolism may play an important role in the pathology process of neurodegeneration in brain. Atorvastatin might inhibit tau protein hyperphosphorylation by inhibiting the activations of MAPK and Cdk-5 in brain, atorvastatin may have the protect effect for tau protein.

OBJECTIVETo establish a perceived fatigue evaluating model during simulated load carriage that is based on objective variables through analyzing the characteristics and trends of shoulder force, shoulder pressure, waist pressure, back pressure, and perceived fatigue, and to provide an analytical technique for research on load carriage.

METHODSA 50-min simulated walking (at a speed of 5 km/h and a slope of 0%) experiment including 14 healthy male adults was conducted under four levels of backpack payloads (25, 29, 34, 37 kg). Shoulder force and trunk pressure were sampled simultaneously and analyzed with time- and frequency- domain methods. Multivariable linear regression was used to build a perceived fatigue evaluating model during load carriage.

RESULTSThe perceived fatigue evaluating model based on shoulder force, trunk pressure distribution ratio, load, and body mass index (BMI) was established. Its adjusted determination coefficient (aR2) was 0.709 and the absolute percentage error (APE) at the end of the experiment was less than 20%. The goodness of fit of the model based on frequency-domain independent variables was much higher compared with the model based on time-domain independent variables. The addition of BMI that represents the individual differences to the model obviously improved the goodness of fit.

CONCLUSIONThe perceived fatigue evaluating model established in this study does not rely on the physiological changes of individuals, and thus can be used to establish an evaluation system for human load carriage with dummy as a substitution for human in experiments and to provide a scientific basis for efficient human load carriage.

Objective To investigate MR findings of acute thigh muscle strains in male football athletes.Methods Twenty five thighs of 21 football athletes with acute muscle strains were analyzed retrospectively.All subjects were examined with MR unit.The anatomical location,size,severity,signal features of the acute strained muscles were analyzed by two experienced radiologists based on MR images.Results There were 32 muscles involved totally,including 1 9 hamstring muscles,5 adductor muscles,7 quadriceps femoris,and 1 sartorius muscle.18 muscles were MR grade 1 injuries,14 of grade 2,and these was no grade 3 injuries.Conclusion Thigh muscle injury of football athletes most frequently involved the hamstring muscle,and MR is an effective tool for detecting acute muscle strains of the thigh.

Objective By observing the clinical efficacy of acupuncture plusBu Shen Jie Yu Qing Xin decoction (herbal decoction for tonifying kidney, anti-depression and clearing heart fire) in treating perimenopausal depression, to discuss about the effect of acupuncture plus medication on Hamilton Depression Scale (HAMD), Self-rating Depression Scale (SDS) and hypothalamic-pituitary-ovarian (H-P-O) axis in perimenopausal depression patients.Method By following a completely randomized design, sixty perimenopausal depression patients were divided into a Chinese medication group (Bu Shen Jie Yu Qing Xin decoction) with 30 cases, and an acupuncture-medication group (acupuncture plusBu Shen Jie Yu Qing Xin decoction) with 30 cases, to receive 12-week treatment in total. The HAMD and SDS were estimated prior to the treatment and in the 4th, 8th and 12th weeks; the serum follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), testosterone (T), prolactin (PRL), and progesterone (P) contents were detected before and after the treatment.Result Acupuncture plus medication and Chinese medication alone were both effective in treating perimenopausal depression, and the therapeutic efficacy of acupuncture plus medication was superior to that of Chinese medication alone (P<0.05). In the acupuncture-medication group, the HAMD score dropped significantly in the 4th, 8th and 12th weeks compared to that before the treatment, and the score dropped significantly in the 8th and 12th weeks compared to that before the treatment in the Chinese medication group (P<0.01). The HAMD score in the acupuncture-medication group was significantly lower than that in the Chinese medication group in the 4th, 8th and 12th weeks (P<0.01). After the treatment, the items including anxiety, insight, sleep, and despair were significantly changed in the Chinese medication group (P<0.05); 7 items were significantly changed in the acupuncture-medication group (P<0.05). The scores of anxiety, insight, sleep, diurnal-nocturnal, obstruction, and body weight in the acupuncture-medication group were significantly superior to those in the Chinese medication group (P<0.05). The SDS score dropped significantly in the 4th, 8th and 12th weeks in the acupuncture-medication group, and in the 8th and 12th weeks in the Chinese medication group (P<0.01,P<0.05); in the 4th and 8th weeks, the SDS score in the acupuncture-medication group was significantly lower than that in the Chinese medication group (P<0.05), while the between-group difference was statistically insignificant in the 12th week (P>0.05). After 12-week treatment, the contents of FSH and LH declined significantly in both groups (P<0.01, P<0.05), and the contents of E2 and T increased significantly in the acupuncture-medication group (P<0.01,P<0.05). The decrease of FSH and LH, and the increase of E2 were more significant in the acupuncture-medication group (P<0.05,P<0.01).Conclusion Acupuncture plus medication can improve the symptoms of perimenopausal depression, and it takes a faster action than Chinese medication alone. Acupuncture plus medication can mitigate 7 items in HAMD, while Chinese medication can improve anxiety, insight, sleep and despair. Acupuncture plus medication can produce a more significant efficacy in improving anxiety, insight, sleep, diurnal-nocturnal, obstruction, and body weight compared to Chinese medication. For perimenopausal depression, acupuncture plus medication can correct the endocrine disorder and improve depression state by down-regulating the levels of FSH and LH, and up-regulating the contents of E2 and T to improve the function of H-P-O axis.

Objective To explore any effect of repetitive transcranial magnetic stimulation (rTMS) on the cognitive ability of patients suffering from cognitive impairment after cerebral venous thrombosis (CVT).Methods Forty-three CVT patients with cognitive impairment were recruited and randomly assigned into an rTMS group (n =23) or a control group (n=20).Both groups received routine drug therapy and cognitive function training,while the rTMS group was additionally given rTMS.The treatment lasted 4 weeks.The Montreal cognitive assessment (MoCA),the Hamilton depression scale (HAMD),the modified auditory Barthel Index (MBI) and event-related potential P300 were used to test both groups before and after the treatment.Results After the treatment the average MoCA and MBI scores of both groups had increased significantly,while their average HAMD scores had decreased significantly compared to before the treatment.For both groups,the P300 latency had shortened significantly and the amplitude increased significantly after the treatment.The improvement in all of these indicators was significantly greater in the rTMS group than in the control group.Conclusion Supplementing drug therapy with rTMS can significantly improve the cognitive ability of CVT patients and is worth applying in clinical practice.