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Meltem Akcaboy Serdar Kula Tayfun Göktas Bijen Nazlıel Semiha Terlemez Nurullah Celik Bülent Celik Necla Buyan 《Pediatric nephrology (Berlin, Germany)》2016,31(3):473-483
Background
Hypertension (HT) is a major comorbidity of obesity that is associated with an increased risk of cardiovascular disease and higher mortality. The aim of our study was to evaluate cardiac function in obese hypertensive (OHT) and obese normotensive (ONT) pediatric patients and determine the effects of plasma nitric oxide (NOx) values on cardiac function, while demonstrating the role of plasma NOx in HT in obese pediatric patients.Methods
The study population consisted of 62 patients (27 boys, 35 girls), aged 13–18 years and 21 age-matched healthy controls. All subjects enrolled in the study underwent echocardiography (Echo) evaluation and ambulatory blood pressure monitoring for HT. Plasma NOx and biochemical values were studied in both patient groups separately.Results
Plasma NOx levels were found to be lower in the OHT group than in the ONT and control groups (p?<?0.001) and to be negatively correlated with left ventricular mass index values (p?<?0.05). Both the OHT and ONT groups had concentric hypertrophy of the heart.Conclusions
Plasma NOx plays an essential role in obesity-induced HT. Concentric hypertrophy of the left ventricle was found in both the OHT and ONT groups, indicating structural deformation of the heart.3.
The development of resistance in different inbred strains of mice to infection with Nematospiroides dubius 总被引:1,自引:5,他引:1
Infection by the intestinal nematode parasite Nematospiroides dubius was studied in seven different inbred mouse strains. Although there was some minor variation in the susceptibility of the different strains to a primary infection there were marked differences in their ability to develop resistance to infection following repeated exposure to infective larvae. The strains of mice which developed the best resistance also expelled adult worms arising from the previous infections. The adult worms resulting from a primary infection were slowly eliminated in two inbred strains studied whereas no loss occurred from outbred LACA mice. Although males and females of two strains, C3H/HeJ and CBA/H were equally susceptible to a primary infection, the females developed better resistance than the male mice following two oral administrations of third stage larvae. Infected mice of every strain and both sexes contained high levels of IgG1 in the serum. 相似文献
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Meltem Akcaboy MD Sanliay Sahin MD Pelin Zorlu MD Saliha Şenel MD 《Pediatric dermatology》2017,34(6):e334-e336
Black tongue is a rare, benign, self‐limiting disorder caused by certain conditions and some medications. We report the first case of a child diagnosed with black tongue associated with ranitidine use. We report our case to emphasize the rare side effect of this frequently used drug. Health care professionals should be aware of the likelihood of ranitidine‐induced black tongue in clinical practice. 相似文献
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骨骼肌缺血再灌注损伤及发病机制初探 总被引:4,自引:1,他引:3
目的:探讨骨骼肌缺血再灌注损伤过程的微循环变化。组织学改变以及多肽含量变化和意义。方法:42只雄性大鼠随机分为留伴行神经组和去伴行神经组,建立标准骨骼肌缺血再灌注模型,采用激光多谱勒及显微放大分析系统,组织学方法以及凝胶电泳方法等观察缺血再灌注损伤变化。结果:缺血再灌注损伤后的骨骼肌微血管管径在20分钟时恢复率基本达到高峰约60%,此后为平台期:90分钟最高峰,为75%,主干血管流速率亦在20分钟基本达到上限,病理检查显示:缺血的骨骼肌纤维呈空泡状,核形态增大,染色加深,红细胞严重聚集,凝胶蛋白电泳提示:缺血骨骼肌中分子量20KD左右的多肽显著增加。结论:骨骼肌缺血再灌注损伤发生后,骨骼肌的微循环发生不同程度的破坏,及因之导致骨骼结构损伤和异常的20KD多肽含量明显增加,以及红细胞凝聚,白细胞的改变,这些共同构成了缺血再灌注损伤机制。 相似文献
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Electron microscopic evidence of persistent chlamydial infection following treatment 总被引:4,自引:0,他引:4
EY Bragina † MA Gomberg ‡ GA Dmitriev† 《Journal of the European Academy of Dermatology and Venereology》2001,15(5):405-409
Chlamydia trachomatis infections of the female and male genital tracts are often asymptomatic and, thus, tend to become persistent. In the persistent state the typical Chlamydia life cycle is arrested and standard antibiotic regimens do not always eradicate this infection. We sought to relate treatment failures in men and women with persistent chlamydial genital tract infections to electron microscopic evidence of chlamydial persistence and with atypical morphological forms of the organism. Of 16 patients with chlamydial persistence following azithromycin treatment, morphological variants of this organism were observed by electron microscopy from one endocervical sample and one male urethral sample. We document the presence of intracellular inclusions containing only reticulate bodies, extracellular monomembrane and polymembrane phagosomes containing elementary bodies and reticulate bodies with abnormal outer membranes in the process of dividing extracellularly. These observations parallel previous in vitro studies of chlamydial persistence under adverse conditions. This capacity of C. trachomatis to undergo atypical morphological alterations in vivo may contribute to its persistence and relative resistance to antibiotics. 相似文献
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