background & objective: reduced blood flow due to obstruction in most cases is as a primary factor in pressure ulcer formation and create of bedsore. the aim of this study is design and manufacture a care system tissue under pressure based on variation blood flow at different depths in the tissue. material & methods: in manufacture of system two infrared light transmitter were located between o...

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BACKGROUND After gastric aspiration events, patients are at risk of pulmonary dysfunction and the development of severe acute lung injury and acute respiratory distress syndrome, which may contribute to the development of an inflammatory reaction. The authors' aim in the current study was to investigate the role of the spatial distribution of pulmonary blood flow in the pathogenesis of pulmonar...

The effects of a nitric oxide (NO)-releasing derivative of aspirin, NCX-4016, on gastric functional and ulcerogenic responses in rat stomachs were examined in comparison with those of aspirin. Topical application of aspirin (80 mM) to the stomach markedly decreased transmucosal potential difference and slightly increased luminal pH (acid back-diffusion) with minimal effect on mucosal blood flow...

Postprandial hypotension occurs frequently and is associated with increased morbidity. Gastric distension may attenuate the postprandial fall in blood pressure (BP). Using a barostat, we sought to determine the effects of gastric distension on BP, heart rate (HR), and superior mesenteric artery (SMA) blood flow responses to intraduodenal glucose in eight (6 men, 2 women) healthy older (65-75 yr...

The direction of blood flow from the gastric mucosa of the antrum of the rat stomach has been studied using the isotope Rb86Cl. In a series of five experiments radioactivity has been shown to be transported via the blood stream from the antrum to the parietal cell mass without passing through the general circulation first. It is suggested that a 'portal' or direct transport system from antral m...

background: celiac disease (cd) is a small bowel enteropathy caused by permanent wheat gluten intolerance. one of the earliest signs of the mucosal immune activation in cd is an increase in the intestinal intraepithelial lymphocytes (iiels) count in the small intestinal epithelium. although most of those iiels express ??tcr, cd is characterized by an increase in the gdtcr + iiels. objective: th...

purpose: to compare ophthalmic artery velocity in eyes with nonarteritic anterior ischemic optic neuropathy (naion) with that of normal fellow eyes. methods: in this case-control study, 20 patients with unilateral naion and disease onset less than 8 weeks, were enrolled. using color doppler imaging, mean, maximum systolic and end diastolic ophthalmic artery velocities were evaluated. the result...

background: human peripheral blood nk cells constitutively express cd56 and cd16 antigens. peripheral blood nk cells seem to be strongly related with decidual nk cells, and may reflect the decidual nk cell functional status. there are varied reports concerning the relationship between nk cell cytotoxicity in women with recurrent spontaneous abortion. objective: to study nk activity in women wit...

alzheimer's disease (ad) is considered as the greatest thread to adults aged 65 and older. it stands as the most common cause of dementia, the prevalence of which is around 24 million worldwide. ad is a progressive and degenerative disorder that combats the neurons, leading to impairment of different cognitive functions. ad is characterized by an accumulation of two factors normally presen...