Echocardiographic measuraments -were carried out in 53 patients with chronic rheumatic heart disease (RHD) during labor and delivery .Ten patients were delivered b-y cesarean section and tkree patients were delivered vaginally.Only mild alterations In maternal cardiovascular function were encountered undergoing cesarean section under epidural anesthesia,excepting a transient decline in blood pressure. A significant incre-, ase in blood pressure,heart rate and systemic vascular resistance were observed in t-he second stage of labor. A decrease in cardiac output was demonstrated at the same t-ime.Our results suggest that cesarean section as the mode of choice for delivery in pat- -, ients with, RHD is better than that of the vaginal delivery

0.05). 29 patients died of AMI during hospitalization. The mortality rate of recurrent AMI was higher than that of the first attacked (p

Objective To observe the changes of growth hormone axis(GH axis) and to study the mechanism of acquired growth hormone resistance in aged patients with congestive heart failure (CHF). Methods Ninety-five patients with congestive heart failure were divided into three groups (Grade Ⅱ , n = 28; Grade Ⅲ , n = 36;and Grade Ⅳ , n = 31) according to New York Heart Association criterion. Another 30 healthy people were used as controls. The concentrations of plasma GH , insulin growth factor 1 (IGF-1) and insulin growth factor binding protein 3 (IGFBP-3) were measured by radioimmunoassay, and growth hormone sensitivity was assessed by log(IGF-1 /GH). Results Plasma concentration of GHC[(5. 83 ? 1. 41) mlU/L vs (1. 56 ? 0. 97) mlU/L were higher in grade Ⅳ group than those in normal subjects ( P

Objective To investigate the effect of teaching achievement of humanities courses joined with disease in gerontology. Methods 95 medical students were randomly divided into two groups:experiment group(n=48) and control group(n=47). Students in experiment group accepted humanities courses joined with disease in gerontology,while control group accepted only traditional courses in gerontology without humanism. Both of the two groups were under the same teacher and study period,and the global minimum essential requirements of undergraduate medical education was adopted ao the final examination. The marks of two groups were tested by t-test. Results There are obvious differences of teaching achievement between the two groups(P

Background The penetration of bacterial agents into the vitreous cavity is difficult because of the existence of blood-retina barrier.So conventional drug therapy is not enough effective on endophthalmitis.Drug delivery systems can decrease drug dose and reduce the drug toxicity.To construct nano controlled-release system of anti-bacterial agents is very important for the treatment of intraocular infectious diseases.Objective This study was to investigate the toxicology and intraocular pharmacoklnetics of intravitreal PNIPAAm-PEO loaded norvancomycin nanoparticles (NV-PNIPAAm-PEO) in normal rabbit eyes.Methods NV-PNIPAAm-PEO was constructed with the drug-loading rate about 22％,and then the drug gelatin solution (20 g/L) was prepared using normal saline solution.Forty-one New Zealand albino rabbits were randomized divided into experimental group and control group.20 g/L drug gelatin solution 0.1 ml was monocularly injected into the vitreous cavity in the experimental group,and the equal volume of sterilized normal saline solution was used in the control group.In 1 day,2,3,7,14,21 and 28 days after injection,ocular anterior and posterior segments were examined by slit lamp microscope and Bsonography,and electroretinogram (ERG) was recorded and the histopathological examination was performed to evaluate the biotoxicity of the drug.Norvancomycin contents in the cornea homogenate,aqueous humor,vitreous,retinochoroid homogenate were detected by high performance liquid chromatography (HPLC) system.Results The anterior and posterior segments were normal by the slit lamp microscope and B-sonography 1-28 days after injection of NV-PNIPAAm-PEO.In 7,14,21 and 28 days after injection,there were no statistically significant difference in the a-wave latency and amplitude of max-ERG between the two groups,as well as the b-wave amplitude(P＞0.05).The histopathological examination showed that the retinal structure was normal in both groups.HPLC assay showed that the norvancomycin level was gradually declined in different eye tissues from 1 day through 28 days after injection.Norvancomycin was undetectable in the cornea during the observing duration.The maximal norvancomycin content in the blood plasma was (0.34 ± 0.11) mg/L in the second day,and norvancomycin content ranged (0.08 ± 0.04)-(2.16±0.07) mg/L in the aqueous humor,(0.11 ±0.22)-(2.54 ±0.38) μg/g in the chorioretina,respectively.The drug concentration was (5.65 ± 1.14)-(406.69 ± 21.05) mg/L in the vitreous,which was higher than the minimal inhibitory concentration (MIC) to the most gram-positive bacteria.Conclusions The intravitreal injection of 22％ NV-PNIPAAm-PEO maintains the therapeutic drug concentration till 21 days in vitreous without the toxic effect on eye tissues,suggesting a great treating potential for intraocular infecting diseases.

Objective To investigate the psychological condition of the rural residents with HIV/AIDS.Methods Totally 192 subjects with HIV/AIDS residing in countryside of Henan Province(China)were investigated with questionaire and Symptom Check list 90(SCL-90).Results SCL-90 total score,the number of positive items and the score of each factor for the 192 subjects with HIV/AIDS were higher than those of Chinese normal(P

Objective To evaluate effect of bone grafting combining with titanium mesh and/or reinforcement cup in reconstruction of acetabular bone defect in total hip arthroplasty (THA).Methods From January 2008 to November 2011,32 patients,including 23 males and 9 females,aged from 51 to 76 years (average,66 years),underwent THA with acetabular defect reconstruction by using bone grafting combining with titanium mesh and/or reinforcement cup.There were 6 cases of primary THA and 26 cases of revision THA.Twelve cases (Paprosky Ⅱ B) and 7 cases (Paprosky Ⅱ C) underwent impaction bone grafting with titanium mesh; 6 cases (Paprosky Ⅱ C) underwent impaction bone grafting with reinforcement cup; 6 cases (Paprosky Ⅲ A) underwent impaction bone grafting and structural bone grafting with winged reinforcement cup; 1 case (Paprosky Ⅲ A) underwent double-layer impaction bone grafting with titanium mesh and reinforcement cup.Harris score and Gill classification were used to evaluate clinical and radiological results,respectively.Results All cases (32 hips) were followed up for an average of 22 months (range,12 to 25months).One year postoperatively,Harris score improved from preoperative 44.00±11.71 to postoperative 78.41 ±9.32.Twenty-four cases were excellent,4 good,4 fair,and the excellent and good rate was 87.5％.Three cases occurred mild displacement of acetabular rotation center; one case occurred dislocation.There was no loosing,subsidence,and bone resorption in other 28 cases at final follow-up.ConcLusion Bone grafting with titanium mesh and/or reinforcement cup is effective in reconstruction of acetabular bone defect in THA,which can improve the stability of acetabular cup.

Objective To compare the diagnostic value of PET-CT and bone scintigraphy in bone metastases. Methods Thirty-two patients with malignant neoplasm confirmed by pathology were undergone18F-FDG PET-CT and bone scan within two weeks.The sensitivity,specificity and accuracy of PET-CT and bone scan in detecting the focus were compared at the same scan filed.Results The diagnostic sensitivity,specificity and accuracy with PET-CT were 94.9%,91.7% and 94.1%,respectively,and 96.2%,54.2% and 86.3% with bone scan,respectively.18F-FDG PET-CT and99Tcm-MDP bone scan were the same in detecting metastatic tumor of bone,but the specificity of18F-FDG PET-CT was better than99Tcm-MDP bone scan in detecting bone metastasis.Conclusion Compared with99Tcm-MDP bone scan,18F-FDG PET-CT is more specific and helpful in detecting bone metastases.

Objective The aim of our study was to investigate the effects and mechanisms of ghrelin on neovascularization in atherosclerosis plaque. Methods 30 male New Zealand rabbits were randomly divided into normal control group ( CON group) , atherosclerosis model group ( AS group) , and ghrelin treatment group ( ghrelin group) , and each group of 10 rabbits. The AS group and ghrelin group underwent balloon-induced arterial wall injury and then fed with high fat diet, the CON group was fed only on a regular diet. They were all fed for 3 months. Then the ghrelin group was given ghrelin 25μg·kg-1 ·d-1 , the other two groups received the same amount of sterile normal saline only. Four weeks later, body weight and blood lipids were detected. The thickness ratio of the intima to media was measured by HE staining. Degree of intra-plaque angiogenesis was evaluated by CD31+ cells immunohisto-chemistry. The vascular endothelial growth factor ( VEGF ) and vascular endothelial growth factor receptor 2 ( VEGFR2) were detected by quantitative realtime PCR and Western blot. The expressions of matrix metalloproteinase ( MMP)-2 and MMP-9 were detected by immunohistochemistry and Western blot. Results ( 1 ) No significant differences in body weight and blood lipids were found between the AS group and the ghrelin group(P>0. 05), but both items were significantly higher than those of the CON group(P<0. 05). (2)The thickness ratio of the intima to media in the ghrelin treated group was distinctly less than that in the AS group(P<0. 05). (3)Compared with the AS group, the ghrelin group showed significantly decreased microvascular density and the expressions of VEGF and VEGFR2 (P<0. 05). (4)Compared with the AS group, ghrelin dramatically inhibited the plaque contents of MMP-2 and MMP-9 ( P<0. 05 ). Conclusions Ghrelin is able to inhibit the growth of neovascularizationin in the atherosclerotic plaque and the development of plaque. And these beneficial effects derive from downregulation of VEGF, VEGFR2, MMP-2, and MMP-9 at the advanced stage of atherosclerosis in rabbits.

Objective: To explore the relationship between lower extremity atherosclerosis disease (LEAD) and cardiovascular risk factors in elder people.
Methods: A total of 700 consecutive patients receive lower extremity Color Doppler ultrasound in our hospital from 2013-05 to 2014-11 were investigated. The patients were divided into 3 age groups: Young and middle group, n=83, Elder group, n=377 and Senile group, n=240. Based on ultrasound scoring system, the patients were divided into 4 groups: Normal group, n=112, Mild atherosclerosis (Mild) group, n=81, Moderate group, n=466 and Severe group, n=41. The cardiovascular risk factors among different groups were compared.
Results: Multivariate unconditional logistic regression analysis showed that age, smoking, history of diabetes, uric acid (UA), ankle-brachial index (ABI) were the independent risk factors for LEAD (B=0.144, 1.496, 0.963, 0.004, -2.510; 95% CI: 1.120-1.190, 2.257-8.824, 1.456-4.716, 1.001-1.007, 0.012-0.534;P=0.000, 0.000, 0.001, 0.006, 0.009 respectively. Ordinal logistic regression analysis indicated that age, male gender, smoking, ABI, UA, history of hypertension were related to the severity of atherosclerosis (B=0.130, 0.737, 0.592, -3.365, 0.003, 0.735; 95% CI: 0.097-0.162, 0.222-1.252, 0.052-1.132, -4.674 to -2.055, 0.001-0.005, 0.313-1.157;P=0.000, 0.005, 0.032, 0.000, 0.005, 0.001 respectively. Compared with Young and Middle groups, Elder and Senile groups had increased rates of moderate and severe arteriosclerotic lesions; compared with Elder group, Senile group presented the higher incidence of moderate and severe lesions, allP<0.01. With elevated age, the severity score of LEAD increased accordingly,P<0.01.
Conclusion: Lower extremity atherosclerosis lesions were more severe in elder patient, and it was particularly severe in senile patients.