Objective To observe the changes of the heart rate turbulence(HRT)in patients with isolated systolic hypertension(ISH).Methods 85 patients with ISH,80 patients with common hypertension and 58 control subjects were investigated.Turbulence onset(TO)and turbulence slope(TS)were recorded of 24 hours dynamic electrocardiogram.Results The difference of HRT in the three groups was significant(P＜0.01).The values of TO and TS was significantly higher in common hypertension group and ISH group than in control group(P＜0.05);TS was significantly lower in ISH group than in common hypertension group(P＜0.05),but the difference of TO between ISH group with common hypertension group was not obvious.Conclusion The HRT in patients with primary hypertension is significantly lower,which is more significant in patients with ISH than in patients with common hypertension.It suggests that the cardiac autonomic nerves dysfunction perhaps has an important influence on development of hypertension and its prognosis.

OBJECTIVETo investigate the intervention effect and mechanism of compound Ginkgo biloba (CGB) preparations on nonalcoholic fatty liver disease (NAFLD).

METHODThe C57BL/6 mouse NAFLD model was induced with high fat diets. Since the 2nd week after modeling, the mice were orally administered with 600 and 200 mg x kg(-1) x d(-1) CGB for eight weeks. The levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), triglyceride (TG), cholesterol (CHOL) and LPS in serum, as well as pathological changes and expression of tumor necrosis factor-alpha (TNF-alpha) in hepatic tissues were observed. Changes in intestinal tight junction proteins ZO-1, Occludin, Claudin-1 in intestinal tissues were determined under microscopy.

RESULTCompared with the normal group, the model group showed obvious fatty degeneration in rat livers, with notable increase in TNF-alpha expression (P < 0.01), significant increases in ALT, AST, TG, CHOL and LPS in serum (P < 0.01, P < 0.05), injury in intestinal tight junction proteins, and remarkable declines in ZO-1, Occludin and Claudin-1 (P < 0.01). Compared with the model group, CGB high and low dose groups showed obvious relieves in fatty degeneration in rat livers and injury in intestinal tight junction proteins, significant reductions in TNF-alpha expression (P < 0.01, P < 0.05) and AST, TG, CHOL and LPS in serum (P < 0.01, P < 0.05) and remarkable increases in ZO-1 and Occludin expressions (P < 0.05).

CONCLUSIONCGB can protect intestinal tight junction proteins, reduce intestinal leakage, relieve fatty degeneration and inflammations in livers and prevent NAFLD occurrence and development.

Alanine Transaminase ; genetics ; metabolism ; Animals ; Aspartate Aminotransferases ; genetics ; metabolism ; Cholesterol ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Fatty Liver ; drug therapy ; enzymology ; genetics ; metabolism ; Ginkgo biloba ; chemistry ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; Triglycerides ; metabolism

Food allergies, as a type of adverse immune-mediated reactions to ingested food proteins, have become a serious public health issue that harms children and adults health, with increasing incidence year by year. However, without effective therapy for food allergies, doctors-have mostly advised to avoid allergens and provided symptomatic treatment. According to the findings of many studies, allergic diseases are correlated with intestinal barrier function injury, as evidenced by the significant increase in the intestinal permeability among patients with food allergies. In this paper, recent studies on correlations between food allergies and intestinal barrier functions, intestinal barrier function injury mechanisms of allergic foods and food allergy intervention strategies based on intestinal barrier functions were summarized to provide reference for laboratory researches and clinical treatment of food allergic diseases.
Animals ; Food Hypersensitivity ; immunology ; therapy ; Humans ; Intestines ; immunology

Objective To study the effects of community comprehensive intervention model on osteoporosis, in order to provides a reference for osteoporosis health education work. Methods A multistage stratified random cluster sampling was applied to conduct a survey in Jiangsu province, in accordance with the economic level and geographic location. Nanjing, Nantong and Xuzhou cities were sampled, three urban streets were sampled in every district , respectively. A total of 1 500 40-69 years old community residents were screened, 619 high-risk participants for osteoporosis were arranged into the intervention group, and a total of 590 residents from the same communities were chosen as control group, who were gender- and age-matched with the intervention group. The intervention group residents received health management and comprehensive intervention, after half a year, a self-designed questionnaire was used to investigate the effects. Results Compared with control group, after six months, knowledge of intervention group related to osteoporosis awareness was improved significantly, such as the most serious harm to human body for osteoporosis (χ2=24.27), characteristic of osteoporosis (χ2=11.05), basic supplements to improve bone health (χ2=60.65) , the recommended daily calcium intake to postmenopausal women and the elderly (χ2=26.80), the difference was statistically significant (P<0.05); daily behavior related to diet and exercise of intervention group has improved significantly, such as drinking milk or itsproducts less than 3 days a week (χ2=25.83), eating beans and products for less than 3 days a week (χ2=19.20), drinking coffee for more than three days a week (χ2=7.77), not often taking outdoor activities (χ2=18.55) ,(P<0.05);Diseases and symptoms related to osteoporosis in intervention group was significantly reduced (P<0.001). Conclusions The osteoporosis is one of the most important public health problem for Jiangsu province, the work for osteoporosis prevention and control should be emphasized in community.

Objectives To search for the pathogenesis of vaseular endothelial injury and its clinical significance.Methods 36 patients with acute lower respiratory trect infection(ALRI)and 30 healthy controls were envolved. Circulating endothelial cells (CEC)and nitric oxide (NO) levels were tested.Results Circulating nitrite/nitra levels,the stable metabolic products of NO,were found to be significantly higher in the patients with ALRI (44.6?22.6umol/L) than that in the controls (24.5?14.1umoI /L, P

ObjectiveTo explore the importance and significance of classification diagnosis and treatment of chordee among hypospadias in children.MethodsA random sample review and controlled study was made in patients with hypospadias and chordee from 1989 to 2011 in First Affiliated Hospital of Sun Yat-Sen University,and the patients were divided into 2 groups.There were 232 cases in group A,who were all diagnosed as chordee only on the basis of clinical symptoms or an erection induced by artificial stimulation before operation.All the 232 cases were corrected empirically without objective assessment by degloving the penis,dissecting superficial and deep fascia,and cutting off the urethral plate,and so on during operation.There were 25 cases in group B,who were all strictly implemented on classification diagnosis and treatment of chordee,in sponge saline injection test during operation and correction effect evaluation after operation.Chordee was classified according to different etiology and pathology:skin type,fascia-type,urethra type,sponge type and the glans of penis type.There were different operating methods in different ways of folding tunica albuginea.ResultsIn group A,86 patients (37％) had postoperative recurrence of chordee,25 patients ( 11％ ) had pain during erection after surgery,183 patients were satisfied with correction of chordee (79％).In group A,25 patients were in their adulthood when followed up,and 7 patients had IIEF-5 score ＜21 points.In group B,the single type of chordee among hypospadias were 7/25 (28％),merged type were 18/25 (72％).All patients were followed up without chordee recurrence or painless erection,and 100％ patients or families were satisfied with correction of chordee.The efficacy difference were statistically significant between the two groups in chordee correction.In folding tunica albuginea group in group B,the penile erection length was (4.58 ± 1.59) cm before the correction,and (6.16 ±2.54) cm after correction.In non-folding tunica albuginea group,penile erection length was (4.O1 ± 1.18 ) cm before correction,and (5.82 ± 1.51 ) cm after correction.The difference was not significant between the 2 groups in penile erection length (P ＞ 0.05 ).ConclusionsSurgeon should pay more attention to the correction,effect evaluated,classified etiology and pathological diagnosis of hypospadias and chordee.And the targeted selection of the correct treatment of chordee can further improve the therapeutic effect.Chordee of hypospadias can exist in single or merged according to the pathological classification.Chordee correction surgery can increase length of penis,and dorsal tunica albuginea plication had no significantly different effect on the length of the penis compared to other chordee corrective surgery.

OBJECTIVETo explore the effects of lead on the thyroid function of occupationally exposed workers.

METHOD157 workers occupationally exposed to lead in a smelting factory were investigated. The concentration of lead in air at workshop was measured by flame atomic absorption spectrophotometry (FAAS) and the levels of blood lead (PbB) by atomic absorption spectrophotometry (AAS), zinc protoporphyrin (ZPP) by ZnPP meter, as well as the indexes of thyroid function, thyroid-stimulating hormone (TSH), triiodothyronine (T(3)), thyroxin (T(4)), free T(3) (FT(3)), and free T(4) (FT(4)) in serum by radioimmunoassay.

RESULTSThe workers with higher level of blood lead (> 2.88 micro mol/L) showed lower levels of T(3) [(1.54 +/- 0.39) nmol/L] and FT(3) [(5.50 +/- 1.26) pmol/L] than those with lower blood lead level [PbB: (1.92 approximately 2.88) micro mol/L group, T(3): (1.71 +/- 0.45) nmol/L, FT(3): (6.12 +/- 1.64) pmol/L, P < 0.05]. There was no obvious effect of length of service on thyroid hormone of exposed workers.

CONCLUSIONHigher level of blood lead may cause certain damage to thyroid function by inhibiting deiodination of T(4). No obvious relation between length of service and thyroid function was found.

Adult ; Female ; Humans ; Lead ; blood ; toxicity ; Male ; Middle Aged ; Occupational Exposure ; Thyroid Gland ; drug effects ; physiology

Objective To investigate the effect of mesenchymal stem cells (MSC) on the activity of nuclear factor (NF)-?B in rats with myocardial infarction.Methods MSC were isolated from SD rats (120—150 g in weight).SD rats (180—200 g in weight) were subjected to MI by left coronary artery occlusion,and were allo- cated into three groups randomly:1)sham group (without ligation of the artery,n=8);2)injection of PBS solu- tion (n=8);3)injection of MSC (n=8).MSC or PBS solution was injected into myocardium from epicardium instantly after MI models were established.Four weeks after transplantation,cardiac function was evaluated u- sing physiological recorder.Western blot were performed to investigate the nuclear factor-? activity.The ex- pressions of tumor necrosis factor (TNF)-? and interleukin (IL)-6 were evaluated by RT-PCR and Western blot. Results 1)Mortality was 20%(2/10) in sham group,33.3%(4/12) in PBS group and 20%(2/10) in MSC group with no statistic differences between them(P=0.646).2) Hemodynamic measurements showed that MSC trans- plantation caused significant improvement in cardiac function,comparing with MI+PBS group.3) MSC inhibi- ted the activities of NF-?B in myocardium and down-regulated the expression of TNF-? and IL-6 in mRNA and protein level.Conclusion Transplantation of MSC improved cardiac function in MI rats,which may partly at- tribute to their immuno-inflammatory regulation mechanism.

OBJECTIVETo investigate whether intensive statin therapy during the perioperative period improves outcomes in patients undergoing middle cerebral artery (MCA) stent implantation for ischemic stroke.

METHODSForty patients with ischemic stroke undergoing delayed stent implantation in our department from January, 2010 to November, 2014 were randomized to intensive statin group (atorvastatin, 80 mg/day, 3 days before till 3 days after intervention; n=20) and standard therapy group (atorvastatin, 20 mg/day, n=20). All the patients received long-term atorvastatin treatment thereafter (20 mg/day). Serum levels of C-reactive protein (CRP), vascular cell adhesion molecule-1 (VCAM-1), and soluble extracellular matrix metalloproteinase inducer (EMMPRIN/CD147) were measured at 24 h before and 24 h after the intervention. The primary end point was procedure-related intra-stent thrombosis, 1-month incidence of major adverse cerebrovascular events (stroke, transient ischemic attack, in-stent restenosis, death or unplanned revascularization).

RESULTSThe basic clinical data were similar between the two groups before the intervention (P>0.05). In the intensive therapy group, the levels of CRP, VCAM-1, and sCD147 were significantly lower at 24 h after the intervention than the levels before intervention (P<0.05) and the postoperative levels in the standard therapy group (P<0.05). The levels of CRP, VCAM-1, and sCD147 were all increased after the intervention in the standard therapy group (P>0.05). The incidence of primary end point was lower in intensive therapy group than in standard therapy group (P<0.05).

CONCLUSIONIn patients undergoing MCA intravascular stent implantation for ischemic stroke, perioperative intensive statin therapy improves the patients' outcomes, reduces the levels of CRP, VCAM-1 and sCD147 molecules, and lowers the incidences of cerebrovascular events.

Angioplasty, Balloon, Coronary ; Atorvastatin Calcium ; therapeutic use ; Basigin ; blood ; C-Reactive Protein ; analysis ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors ; therapeutic use ; Middle Cerebral Artery ; surgery ; Stents ; Stroke ; drug therapy ; Vascular Cell Adhesion Molecule-1 ; blood

OBJECTIVETo investigate the correlation between cerebral white matter fraction anisotropy (FA) in normal human adults using the diffusion tensor magnetic resonance (MR) imaging (DTI).

METHODSForty-five adults with normal cerebral white matter MRI findings in 3 age groups (n=15), namely 25 approximately 35 years (young), 45 approximately 55 years (middle-aged) and 65 years or above (elderly), underwent conventional MRI and diffusion tensor MR imaging. FA was measured in different regions of interest (ROIs) including the genu and splenium of the corpus callosum, posterior limb and anterior limb of the internal capsule, centrum semiovale, frontal white matter, thalamus and head of the caudate nucleus.

RESULTSThe FA values of the corresponding regions were similar between the left and right hemispheres. The FA value in the genu of the corpus callosum, centrum semiovale and the frontal white matter decreased with age, showing significant differences between the 3 age groups (P<0.05). The FA value in the splenium of the corpus callosum decreased significantly with age, with significant differences between the elderly and young groups and between the elderly and middle-aged groups (P<0.05). The values in the posterior limb and anterior limb of the internal capsule also decreased significantly with age as shown by comparison between the elderly and young groups (P<0.05). No significant difference was found in the FA value of the thalamus and head of the caudate nucleus between the three groups (P>0.05).

CONCLUSIONThe FA values decrease with age, especially in the genu of corpus callosum, centrum semiovale and frontal white matter. The patient's age and age-related white matter degradation must be considered in DTI-based diagnosis of cerebral diseases.

Adult ; Age Factors ; Aged ; Anisotropy ; Cerebrum ; chemistry ; diagnostic imaging ; Diffusion Magnetic Resonance Imaging ; Female ; Health Status ; Humans ; Male ; Middle Aged ; Radiography