Child ; Humans ; Respiratory Syncytial Virus Infections ; immunology ; virology ; Respiratory Syncytial Virus, Human ; immunology ; pathogenicity

Non-invasive coronary artery angiography is one of the hotspots of imaging.This article reviewed the status and the relevant advancement of the cardiac EBCT, DSCT, MSCT and MR imaging.

Objective To establish culture method for Phyllanthus urinaria. Methods To study the possible effective factors of culture condition by comparing with different explants,sucrose,plant growth substance,and its ratio. Results The inductivity of stem was the highest about 55.56%,but callus of leaves could not be induced.6-BA was the most important factor on callus induction,followed by 2,4-D NAA and sucrose. Conclusion The optimal medium to induce and subculture is MS+2,4-D 0.5 mg/L+6-BA 1.0 mg/L+NAA 0.1 mg/L+sucrose 10 g/L.

A protein was isolated by DEAE-cellulose Chromatography and ultracentrifuge from the fruits of Momordica charantid L., and identified by chemical and polyacrylamide gel electrophoresis methods. The molecular weight was 34 000; isoelectric point pH 8.4,N-end amino acid was leucine.It was composed of 17 kinds of amino acids. The protein has been shown to have antifertility action in male rats.

Objective To discuss the effects of high-fluoride intake and iodine-deficiency on thyroid glands of pregnant mice and their offspring. Methods 200 mg/ L sodium fluoride solution was supplied ad.lib. for the adult female Kunming mice before pregnancy and during pregnancy with iodine-sufficiency and iodine-deficiency. The morphological changes and functions of thyroid glands and the body weights of the pregnant mice and their offspring were observed and measured. Results Under the condition of iodine-sufficiency, significantly higher levels of blood T4 in pregnant mice exposed to high-dose fluoride and their offspring were observed compared with those of control group. Significantly heavier body weights were found in 18 d-pregnant mice and 7 d-old offspring compared with those of control group (P

Breast cancer is one of reproduction-endocrine related tumors, so the risk factors including environmental and genetic factors which can disrupt anabolism and function of estradiol may increase the risk of breast cancer. Persistent environmental endocrine disruptor chemical (EDCs) can disrupt anabolism and function of endogenous hormone and the degree of disruption may depend on genetic polymorphism. EDCs and metabolic enzyme genetic polymorphism were discussed in this paper. To study the risk factors of breast cancer, both of the environmental factors and the genetic factors should be included.

Objective To evaluate the value of color Doppler flow imaging(CDFI) in the diagonosis of placental site trophoblastic tumor(PSTT). Methods After being examined by transvaginal CDFI, four of six patients underwent curettage and two of them had hysterectomy and attached by chemical treatment. All the patients were verified to have a PSTT by pathology. Results The image of PSTT in CDFI included different size at different site, low resistence index (RI) of vessel around the lesion, and absence of vessel in the lesion. Conclusions The characteristic image in CDFI is helpful to the diagnosis of PSTT.

AIM: To observe the effect of thichosanthes injection on the expression of proliferating cell nuclear antigen (PCNA) of vascular smooth muscle cell (SMC). METHODS: The expression of PCNA of cultured rabbit aortic SMC was examined with LSAB immunohistochemical technique, and [ 3H]-thymidine([ 3H]-TdR) incorporation data of SMC and the contents of superoxide dismutase (SOD), lipid peroxide (LPO), prostacyclin (PGI 2) and cyclic AMP (cAMP) in medium were simultaneously determined. RESULTS: Thichosanthes injection has an effects of increasing SOD activity, decreasing LPO, elevating PGI 2 and cAMP, reducing [ 3H]-TdR incorporation and expression of PCNA (all P

Asymmetric dimethylarginine(ADMA)is an endogenous inhibitor of nitric oxide synthase(NOS).it reduces nitric oxide production. ADMA is correlated with the risk factors of atherosclerosis, such as hypercholesterolemia, hypertension and hyperglycaemia. Accumulating evidence suggests that a derangement of the NOS pathway plays a critical role in atherogenesis and ADMA may participate in the process.

Subclavian artery occlusion is a common peripheral artery occlusion disease of various causes,with incidence of 1.9％.The most common symptoms are dizziness,ataxia,and hemiplegia that are caused by subclavian steal syndrome.Surgery is the only therapeutic method for symptomatic patients.Open surgery remains an important role despite of the rapid progress in endovascular surgery.Main surgical method includes carotid-subclavian transposition (CST),carotid-subclavian bypass (CSB) and axillary-axillary bypass.Each one is suitable for different lesions and anatomies.Both the effectiveness and safety have been testified.