Results 31 to 40 of about 262,681 (286)

Pathological Role of Angiotensin II in Severe COVID-19

open access: yesTH Open, 2020
The activated renin–angiotensin system induces a prothrombotic state resulting from the imbalance between coagulation and fibrinolysis. Angiotensin II is the central effector molecule of the activated renin–angiotensin system and is degraded by the ...
Wolfgang Miesbach
doaj   +1 more source

Is Covid-19 severity associated with ACE2 degradation? [PDF]

open access: yesarXiv, 2021
Covid-19 is particularly mild with children, and its severity escalates with age. Several theories have been proposed to explain these facts. In particular, it was proposed that the lower expression of the viral receptor ACE2 in children protects them from severe Covid.
arxiv  

Angiotensin II and the Heart [PDF]

open access: yesHypertension, 2000
Abstract —The active end product of the renin-angiotensin system, angiotensin II (Ang II), through the activation of specific Ang II receptors, regulates cardiac contractility, cell coupling, and impulse propagation and is involved in cardiac remodeling, growth, and apoptosis.
Walmor C. De Mello, A. H. Jan Danser
openaire   +3 more sources

Angiotensin II and Erythropoiesis.

open access: yesExperimental Biology and Medicine, 1963
Summary1. Polycythemic mice and hypophysectomized rats were used as assay animals to measure the erythropoietic stimulating activity of synthetic angiotensin II (A-S) and of angiotensin II made from a crude extract of the hog kidney (A-CE). 2. No increase in erythropoietic activity, as measured by the red blood cell incorporation of Fe59, was found ...
Wood Je, Bilsel Yc, Lange Rd
openaire   +3 more sources

Grace periods in comparative effectiveness studies of sustained treatments [PDF]

open access: yes, 2022
Researchers are often interested in estimating the effect of sustained use of a treatment on a health outcome. However, adherence to strict treatment protocols can be challenging for individuals in practice and, when non-adherence is expected, estimates of the effect of sustained use may not be useful for decision making.
arxiv   +1 more source

Maternal plasma angiotensin 1-7 concentration is related to twin pregnancy chorionicity in the third trimester of pregnancy

open access: yesFrontiers in Endocrinology
IntroductionTwin gestation is related to a higher risk of hypertensive disorders in pregnancy with possible risk stratification depending on chorionicity.
Paweł Pietruski   +6 more
doaj   +1 more source

A Dual‐Layer Hydrogel Barrier Integrating Bio‐Adhesive and Anti‐Adhesive Properties Prevents Postoperative Abdominal Adhesions

open access: yesAdvanced Healthcare Materials, EarlyView.
A new dual‐layer hydrogel barrier for preventing postoperative abdominal adhesions is developed. The inner layer, consisting of polyethyleneimine (PEI) and thioctic acid (TA), enhanced adhesion to moist tissues. The outer layer combines zwitterionic, thermoresponsive hyaluronic acid with anti‐inflammatory epigallocatechin gallate (EGCG) and forms a ...
Mena Asha Krishnan   +6 more
wiley   +1 more source

Mathematical model of SARS-Cov-2 propagation versus ACE2 fits COVID-19 lethality across age and sex and predicts that of SARS, supporting possible therapy [PDF]

open access: yesarXiv, 2020
The fatality rate of Covid-19 escalates with age and is larger in men than women. I show that these variations correlate strongly with the level of the viral receptor protein ACE2 in rat lungs, which is consistent with the still limited and apparently contradictory data on human ACE2.
arxiv  

Role of angiotensin II in aging

open access: yesFrontiers in Aging Neuroscience, 2022
Aging is an inevitable progressive decline in physiological organ function that increases the chance of disease and death. The renin–angiotensin system (RAS) is involved in the regulation of vasoconstriction, fluid homeostasis, cell growth, fibrosis, inflammation, and oxidative stress. In recent years, unprecedented advancement has been made in the RAS
Wenmin Yi   +32 more
openaire   +3 more sources

Self‐Healing Hydrogel Dressing with Solubilized Flavonoids for Whole Layer Regeneration of Diabetic Wound

open access: yesAdvanced Healthcare Materials, EarlyView.
High glucose‐ and acid‐responsive hydrogel with dynamic covalent bond solubilized with flavonoids (Gel‐Flavonoids) is designed for diabetic wound healing. The Gel‐Flavonoids adapt to irregular wound shapes and release antioxidants in high‐glucose environments, effectively reducing reactive oxygen species.
Qiang Zeng   +9 more
wiley   +1 more source

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