منابع مشابه
Are we underestimating acid reflux?
F or a simple organ like the oesophagus, which functions primarily as a conduit, it is hard to imagine a more unpleasant neighbour than the stomach, a reservoir of concentrated acid constrained by a leaky valve. Studies using pH monitoring techniques developed in the 1970s have shown that the distal oesophagus of normal ambulatory individuals can be exposed to refluxed gastric acid (with pH ,4)...
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July 2005 | Volume 3 | Issue 7 | e259 | e244 Cell membranes are largely made of proteins, and membrane proteins account for about a third of all genes. Despite their importance, they are devilishly hard to isolate and stabilize, and therefore are hard to study. The problem lies in their structure: membrane proteins have at least one hydrophobic domain, composed of a stretch of waterrepelling am...
متن کاملAre We Underestimating Benthic Cyanotoxins? Extensive Sampling Results from Spain
Microcystins (MCs) are potent hepatotoxins, and their presence in water bodies poses a threat to wildlife and human populations. Most of the available information refers to plankton, and much less is known about microcystins in other habitats. To broaden our understanding of the presence and environmental distribution of this group of toxins, we conducted extensive sampling throughout Spain, un...
متن کاملAre We Underestimating the Significance of Pedicle Screw Misplacement?
STUDY DESIGN A retrospective review of charts, x-rays (XRs) and computed tomography (CT) scans was performed. OBJECTIVE To evaluate the accuracy of pedicle screw placement using a novel classification system to determine potentially significant screw misplacement. SUMMARY OF BACKGROUND DATA The accuracy rate of pedicle screw (PS) placement varies from 85% to 95% in the literature. This demo...
متن کاملAre we underestimating the genetic variances of dimorphic traits?
Populations often contain discrete classes or morphs (e.g., sexual dimorphisms, wing dimorphisms, trophic dimorphisms) characterized by distinct patterns of trait expression. In quantitative genetic analyses, the different morphs can be considered as different environments within which traits are expressed. Genetic variances and covariances can then be estimated independently for each morph or ...
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ژورنال
عنوان ژورنال: Hypertension
سال: 2019
ISSN: 0194-911X,1524-4563
DOI: 10.1161/hypertensionaha.118.12310