A case of a large neonatal arteriovenous malformation with heart failure. Color Doppler sonography,MRI and MR angiography as early non-invasive diagnostic procedures

We report a case of a large arteriovenous malformation (AVM) of neonatal onset with heart failure. Transfontanel color Doppler sonography revealed abnormal vessels in the early stage of the investigation. Magnetic resonance imaging (MRI) revealed numerous flow voids suggesting abnormal vessels, and magnetic resonance angiography (MRA) disclosed numerous bizarre abnormal vessels. Color Doppler sonography is a convenient and appropriate procedure for the early bedside diagnosis of neonatal AVMs. MRI and MRA can replace cerebral angiography for the diagnosis of neonatal AVMs.     

慢性应激抑郁模型大鼠血清脑源性神经营养因子水平的研究

目的观察慢性不可预见性应激(CUS)抑郁模型大鼠行为学改变及血清脑源性神经营养因子(BDNF)蛋白水平的变化,探讨BDNF蛋白在抑郁症发生、发展中的作用。方法 40只大鼠随机分为生理盐水组、氯丙咪嗪组、万拉法新组和正常对照组,每组10只。前3组接受21dCUS制备抑郁大鼠模型,并给予相应的干预。以旷场试验和体质量测定评价药物的疗效,采用酶联免疫吸附试验测定各组大鼠血清BDNF蛋白水平。结果应激后,生理盐水组、氯丙咪嗪组和万拉法新组大鼠旷场试验得分、体质量均低于正常对照组,差别有统计学意义(P<0.05);药物干预后,氯丙咪嗪组、万拉法新组大鼠旷场试验得分、体质量与生理盐水组比较差别有统计学意义(P<0.05);药物干预结束后,氯丙咪嗪组、万拉法辛组和正常对照组大鼠血清BDNF蛋白水平明显高于生理盐水组(P<0.05)。结论 CUS抑郁模型大鼠的行为学表现与临床抑郁症患者精神运动性迟滞极为相似;BDNF蛋白可能在抑郁症的发生、发展过程中起重要作用。     

Association of Empirically Derived Food-Based Inflammatory Potential of the Diet and Breast Cancer: A Hospital-Based Case-Control Study

BackgroundDiet may be a modifiable factor in the prevention of breast cancer (BC) by modulating inflammation. We used a food-based empirical dietary inflammatory index (FDII) to evaluate the association between FDII and odds of breast cancer in Iranian women.MethodsThe present case-control study carried out on 150 age-matched women with newly diagnosed breast cancer and controls. Data for dietary intake and anthropometric measures were collected. FDII score was developed according to participants dietary intakes of 27 pre-defined food groups. Multivariate odds ratios (OR) with 95% confidence intervals (CI) were used to investigate the association of empirically derived food-based inflammatory potential of the diet and breast cancer.ResultsThe odds ratios of BC according to quartiles of FDII score by multivariate logistic regression models indicated the FDII score was significantly associated with BC risk (OR: 2.38; 95% CI: 1.23-4.59, P _trend = .04). After controlling confounders, multivariate logistic regressions remained significant which revealed in participants at the fourth quartile of FDII score chance of breast cancer was 2.8 times higher than participants in the first quartile.ConclusionsThe results of our study suggested that more pro-inflammatory diet (higher FDII scores) was associated with increased BC risk. These findings suggest that developing an effective dietary modification based on FDII may reduce risk of BC.     

与肺癌源性HSP70特异性结合单链融合抗体的筛选与序列分析

目的从人源性肺癌噬菌体单链抗体库中筛选与肺癌源性HSP70特异性结合的融合抗体。方法以肺癌源性的HSP70为抗原,对人源性肺癌噬菌体单链抗体库中经四轮筛选,单克隆噬菌体抗体与抗原HSP70结合经ELISA检测筛选出阳性菌株,再经PCR进一步鉴定,确定含有单链抗体基因的克隆并测序,测序结果通过GeneBank比对进行同源性分析。结果获得了1个特异性强的阳性噬菌体克隆。经DNA测序后,在Genebank中与人的免疫球蛋白库进行比对,确定为单链抗体片段。结论从人源性肺癌噬菌体单链抗体库中筛选到与HSP70特异性结合的具有功能活性的单链融合抗体,为进一步的HSP70可溶性抗体的制备以及以可溶性HSP70抗体为载体的药物导向抗肿瘤治疗奠定了基础。     

Longitudinal associations between metabolic score for visceral fat and hyperuricemia in non-obese adults

Background and aimsThe assessment of visceral adiposity is of great significance for the prevention of hyperuricemia (HUA), especially in non-obese individuals. The metabolic score for visceral fat (METS-VF) is a newly proposed surrogate of visceral obesity. We aimed to evaluate the longitudinal associations of METS-VF with the risk of HUA in non-obese adults.Methods and resultsA total of 16,058 non-obese adults without HUA were included for this retrospective cohort analyses. The crude incidence rate of HUA in non-obese women and men were 20.9 and 69.6 per 1000 person-years, respectively. The Cox proportional hazards model indicated that METS-VF was significantly associated with the risk of HUA in both genders. Whereas, METS-VF only had the highest HR in women, but not in men.ConclusionsMETS-VF, a novel surrogate of visceral adiposity combined biochemical and anthropometric parameters, age, and gender, could be a useful tool for the hierarchical prevention and management of HUA among non-obese women.