نتایج جستجو برای: hca
تعداد نتایج: 1383 فیلتر نتایج به سال:
کربنیک انیدراز انسانی (1 .1 .2 .4hca, ec ) یک متالوآنزیم حاوی فلز روی است که تبدیل برگشت پذیر دی اکسیدکربن به بی کربنات را همراه با تولید پروتون، کاتالیز می کند. از آنجا که مهار آنزیم کربنیک انیدراز در درمان بسیاری از بیماری ها از جمله سرطان و گلوکوما موثر است، در این تحقیق میان کنش فیورزماید (داروی سولفونامیدی و دیورتیک بسیار قوی) با کربنیک انیدراز ii انسانی (یکی از ایزوزیم های سیتوزولی) از طر...
Modern ventilation strategies for patients with acute lung injury and acute respiratory distress syndrome frequently result in hypercapnic acidosis (HCA), which is regarded as an acceptable side effect ('permissive hypercapnia'). Multiple experimental studies have demonstrated advantageous effects of HCA in several lung injury models. To date, however, human trials studying the effect of carbon...
As part of an ongoing cohort study in the Hokuriku region of Japan, cervical cell samples from histologically confirmed normal (n = 114) or abnormal (n = 286) women were examined for the presence of HPV DNA using a second-generation hybrid capture assay (HCA-II) and LCR-E7 PCR. HCA-II detected low-risk (HPV-6, -11, -42, 43 and -44) and high-risk (HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, ...
BACKGROUND Aortic arch surgery has a high incidence of brain injury. This may in part be caused by a cerebral metabolic deficit observed after hypothermic circulatory arrest (HCA). We hypothesized that selective antegrade cerebral perfusion (SACP) would attenuate this phenomenon. METHODS AND RESULTS In a prospective randomized trial, 42 adult patients were allocated to either HCA (22) or SACP...
β-Lactams are pharmacologically important compounds because of their various biological uses, including antibiotic and so on. β-Lactams were synthesized from benzylidene-inden derivatives and acetoxyacetyl chloride. The inhibitory effect of these compounds was examined for human carbonic anhydrase I and II (hCA I, and II) and acetylcholinesterase (AChE). The results reveal that β-lactams are in...
Hepatocellular adenoma (HCA) is a benign liver tumor most frequently occurring in women using oral contraception. HCA develops in normal or nearly normal livers and is extremely rare in cirrhosis. The authors present magnetic resonance imaging and histopathologic findings in a 57-year-old man with liver cirrhosis and hepatic adenomatosis. As the differentiation between HCA and hepatocellular ca...
Histidine 64 in human carbonic anhydrase II (HCA II) functions in the catalytic pathway of CO(2) hydration as a shuttle to transfer protons between the zinc-bound water and bulk water. Catalysis of the exchange of (18)O between CO(2) and water, measured by mass spectrometry, is dependent on this proton transfer and was decreased more than 10-fold for H64A HCA II compared with wild-type HCA II. ...
Recent changes in healthcare systems have changed the epidemiologic paradigms in many infectious fields including bloodstream infection (BSI). We compared clinical characteristics of community-acquired (CA), hospital-acquired (HA), and healthcare-associated (HCA) BSI. We performed a prospective nationwide multicenter surveillance study from 9 university hospitals in Korea. Total 1,605 blood iso...
BACKGROUND The increasing antimicrobial resistance of Escherichia coli infection is of great concern, even for community-onset infections. METHODS We conducted a retrospective cohort study of patients with E. coli bacteraemia who visited the emergency department of the Samsung Medical Center from February 2002 to December 2005 to identify the risk factors for mortality and association between...
Pancreatic cancer is a highly aggressive malignancy with a notoriously dismal prognosis. A major contributor to this poor clinical outcome is pancreatic cancer's prominent chemoresistance. The present study was undertaken to determine whether the flavonoid p‑hydroxycinnamic acid (HCA), which is a botanical factor, possesses anticancer effects on cloned human pancreatic cancer MIA PaCa‑2 cells t...
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