Results 11 to 20 of about 41,838 (271)

Antioxidant Melatonin: Potential Functions in Improving Cerebral Autoregulation After Subarachnoid Hemorrhage

open access: yesFrontiers in Physiology, 2018
Subarachnoid hemorrhage (SAH) is a subtype of stroke with high mortality and morbidity. Impaired cerebral autoregulation following SAH has been reported owing to effects on sympathetic control, endothelial function, myogenic response, and cerebral ...
Zhen-Ni Guo   +9 more
doaj   +1 more source

Temporal Course of Cerebral Autoregulation in Patients With Narcolepsy Type 1: Two Case Reports

open access: yesFrontiers in Neurology, 2019
Cerebral autoregulation is the mechanism by which constant cerebral blood flow is maintained despite changes in arterial blood pressure. In the two presented cases, cerebral autoregulation was impaired in patients with narcolepsy type 1, and both ...
Zhen-Ni Guo   +7 more
doaj   +1 more source

Early Hyperdynamic Sepsis Alters Coronary Blood Flow Regulation in Porcine Fecal Peritonitis

open access: yesFrontiers in Physiology, 2021
Background: Sepsis is a common condition known to impair blood flow regulation and microcirculation, which can ultimately lead to organ dysfunction but such contribution of the coronary circulation remains to be clarified.
Céline Boudart   +14 more
doaj   +1 more source

Regulatory Processes in Populations of Forest Insects (A Case Study of Insect Species Damaging the Pine Pinus sylvestris L. in Forests of SIBERIA)

open access: yesDiversity, 2022
The present study addresses the population dynamics of five species of phyllophagous forest insects in five habitats located in the Krasnoturansk pine forest (south Middle Siberia).
Vladislav Soukhovolsky   +4 more
doaj   +1 more source

Cerebral Blood Flow Autoregulation in Offspring From Experimentally Preeclamptic Rats and the Effect of Age

open access: yesFrontiers in Physiology, 2022
Preeclampsia is a hypertensive disorder of pregnancy that causes significant, long term cardiovascular effects for both the mother and offspring. A previous study demonstrated that middle cerebral arteries in offspring from an experimental rat model of ...
Emmett E. Whitaker   +10 more
doaj   +1 more source

Interrelation between pulse wave forms in the peripheral arteries registered by methods of impedance rheography and ultrasonic dopplerography [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2023
Background and Objectives: Impedance plethysmography and Doppler ultrasound, in most cases, are considered as independent methods for analyzing hemodynamics.
Zaletov, Ivan Sergeevich   +5 more
doaj   +1 more source

Individualized perfusion targets in hypoxic ischemic brain injury after cardiac arrest

open access: yesCritical Care, 2017
Secondary injury is a major determinant of outcome in hypoxic ischemic brain injury (HIBI) after cardiac arrest and may be mitigated by optimizing cerebral oxygen delivery (CDO2).
Mypinder S. Sekhon, Donald E. Griesdale
doaj   +1 more source

Regulation of Tubulin Gene Expression: From Isotype Identity to Functional Specialization

open access: yesFrontiers in Cell and Developmental Biology, 2022
Genomes of higher eukaryotes encode a large tubulin gene superfamily consisting of at least six α and six β-tubulin isotypes. While some α and β-tubulin isotypes are ubiquitously expressed, others are cell-type specific.
Ivana Gasic
doaj   +1 more source

The angiotensin II type I receptor contributes to impaired cerebral blood flow autoregulation caused by placental ischemia in pregnant rats

open access: yesBiology of Sex Differences, 2019
Background Placental ischemia and hypertension, characteristic features of preeclampsia, are associated with impaired cerebral blood flow (CBF) autoregulation and cerebral edema.
Junie P. Warrington   +10 more
doaj   +1 more source

Noninvasive Optical Measurements of Dynamic Cerebral Autoregulation by Inducing Oscillatory Cerebral Hemodynamics

open access: yesFrontiers in Neurology, 2021
Objective: Cerebral autoregulation limits the variability of cerebral blood flow (CBF) in the presence of systemic arterial blood pressure (ABP) changes.
Thao Pham   +8 more
doaj   +1 more source

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