Search results for "Perfusion"
showing 4 items of 714 documents
Gingivīta novērtēšana, izmantojot attālinātu fotopletismogrāfiju
2020
Pētījuma mērķis ir novērtēt smaganu perfūziju izmeklējamām personām izmantojot photopletizmogrāfijas metodi. Viens no pētījuma mērķiem bija reģistrēt kapsacīna izraisīto neiro-iekaisuma efektu. Metodoloģija Šķērsgriezuma pētījums, tika veikts iekļaujot nelielu izmeklējamo personu grupu , izmeklējamās personas pirms pētījuma veikšanas tika iepazīstinātas ar protokolu un rakstiski apstiprināja dalību pētījumā. Pētījuma gaitā smaganu perfūzijas tika reģistrēta miera apstākļos, un aplicējot uz smaganu virsmas kapsacīnu saturošu piparu ekstraktu, kas izraisīja pārejošu neirogēnu iekaisumu, ar tam raksturīgo hiperēmiju. Signāla reģistrācija tika veikta novietojot uz galvas izmeklējamai personai f…
Nitrate and nitrite in the diet: How to assess their benefit and risk for human health
2015
Nitrate is a natural constituent of the human diet and an approved food additive. It can be partially converted to nitrogen monoxide, which induces vasodilation and thereby decreases blood pressure. This effect is associated with a reduced risk regarding cardiovascular disease, myocardial infarction, and stroke. Moreover, dietary nitrate has been associated with beneficial effects in patients with gastric ulcer, renal failure, or metabolic syndrome. Recent studies indicate that such beneficial health effects due to dietary nitrate may be achievable at intake levels resulting from the daily consumption of nitrate-rich vegetables. N-nitroso compounds are endogenously formed in humans. However…
H1-antihistamines suppress wheal-and-flare reaction and skin blood perfusion measured by Laser Dopppler flowmetry: randomized, double-blind, placebo-…
2010
H1-antihistamines suppress wheal-and-flare reaction and skin blood perfusion measured by Laser Dopppler flowmetry: randomized, double-blind, placebo-controlled, crossover design study The aim of our study was to compare the influence of pre-treatment with H1-antihistamines (levocetirizine, desloratadine, clemastine, quifenadine, and sequifenadine) and a placebo on the histamine-induced weal and flare reaction, increase of skin blood perfusion and sedation. Thirty healthy volunteers were enrolled in the study. The study design was a prospective, randomised, double-blind, placebo-controlled, crossover, balanced clinical trial. Volunteers in randomised and double-blind order were treated with …
3-NPA induziert Ischämietoleranz der Rattenleber nach warmer Ischämie
2005
Until now little is known about the potential of 3-nitroproprionic acid (3-NPA) to reduce ischemia/ reperfusion injury (IRI) of the rat liver in vivo.