نتایج جستجو برای: lung tissue
تعداد نتایج: 1175871 فیلتر نتایج به سال:
مقدمه و هدف : یکی از عوامل مهم و تاثیرگذارجهت دستیابی به انطباق بدون تنش در پروتزهای متکی بر ایمپلنت، انجام قالبگیری دقیق می باشد. دو روش قالبگیری مستقیم و غیرمستقیم برای انتقال موقعیت ایمپلنت از دهان به کست کار وجود دارد. هدف از انجام این مطالعه بررسی دقت وسایل رایج جهت قالبگیری به روش غیرمستقیم درسه نوع سیستم مختلف ایمپلنت دندانی و مقایسه آنها با روش مستقیم می باشد. مواد و روش ها : در...
The mechanisms by which the branching of epithelial tissue occurs and is regulated to generate different organ structures are not well understood. In this work, image analyses of the organ rudiments demonstrate specific epithelial branching patterns for the early lung and kidney; the lung type typically generating several side branches, whereas kidney branching was mainly dichotomous. Parameter...
Morphological changes in lung tissue of heterotopic heart-lung transplants have been studied 28 days following transplantation in 20 rats. Lung tissue showed disperse haemorrhagic necrosis often sparing bronchi and branches of pulmonary artery and conspicuous accumulation of bronchial secretion. Partial disappearance of cardiac muscle cells from the walls of pulmonary veins has been ascribed to...
PURPOSE This study presents the first in vivo real-time tissue characterization during image-guided percutaneous lung biopsies using diffuse reflectance spectroscopy (DRS) sensing at the tip of a biopsy needle with integrated optical fibers. EXPERIMENTAL DESIGN Tissues from 21 consented patients undergoing lung cancer surgery were measured intraoperatively using the fiber-optic platform capab...
ABSTRACT Angiotensin I-converting enzyme (ACE) converts the inactive angiotensin I molecule to the active angiotensin II. ACE is abundant in epithelium, endothelium and neuroepithelial cells so it found largely on the brush border of intestine and kidney proximal tubules. ACE also presents in the serum. Some pulmonary and renal toxic drugs change the serum and tissue ACE contents. ...
Lung abscess is a purulent and necrotizing infection of lung tissue which leads to cavitation(s). Despite appropriate treatment, it has yet a high mortality rate (20%). Impaired consciousness, oral cavity infections, diabete, cerebro-vascular accidents and alcoholism are some predisposing factors. This research identified different factors affecting on medical treatment response and designed ...
Objective(s) To determine the potential toxic effects of manual soldering flux cored solder wire on lung of the rat as an experimental model. Materials and Methods A total number of 48 adult male rats were divided into experimental (n= 30) and control (n= 18) groups. Based on exposure time to solder fume, each group was further subdivided into 2, 4 and 6 week subgroups. Rats of experimental ...
The angiotensin I-converting enzyme (ACE) converts the inactive angiotensin I molecule to the active angiotensin II. ACE is rich in epithelium, endothelium, and neuroepithelial cells and it found largely on the brush border of intestine and kidney proximal tubules. ACE also presents in the serum. Some pulmonary and renal toxic drugs change the serum and tissue ACE contents. In this research ACE...
In Finland, unlike other countries, anthophyllite asbestos has been widely used due to its domestic production in 1918-1975. In this particular context, the aim of the present study was to analyse the relationship between asbestos bodies (ABs) in bronchoalveolar lavage (BAL) fluid and the concentration of ABs and the different amphibole asbestos fibres in lung tissue. Sixty five BAL lung tissue...
Background: Bleomycin-induced lung fibrosis has been accepted as an animal model for fibrosis in rats. The aim of this study was to evaluate the effects of saffron aqueous extract on this disorder paving the way for more investigation in treating idiopathic pulmonary fibrosis in human. Methods: Male Wistar rats (250–300 gr) were instilled a single dose of bleomycin (5 mg/kg) via in...
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