PMID: 6968000Sep 1, 1980Paper

Vestibular nystagmus in rats after hypokinesia and prolonged rotation

Kosmicheskaia biologiia i aviakosmicheskaia meditsina
V G Ovechkin, A A Shipov

Abstract

Changes in the latent period, number of beats, duration and frequency of the nystagmus were investigated in rats exposed to angular acceleration of an increasing value (10, 20, 30, and 40 degree/cm2) after a 21-day exposure to hypokinesia per se or hypokinesia in a rotating device (with a radius of 141 cm, rate of rotation of 33.3 rpm, and acceleration value of 2 g). The hypokinetic rats showed nystagmic changes only with the lowest acceleration used (10 degrees/cm2). The hypokinetic animals rapidly adapted to a repeated exposure to angular acceleration during the recovery period. A 21-day exposure to hypokinesia in a rotating device disturbed adaptation to a repeated effect of angular acceleration during recovery. Mechanisms of these effects are discussed. It is concluded that hypokinesia cannot be an adequate model for studying weightlessness effects on the vestibular function.

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Kosmicheskaia biologiia i aviakosmicheskaia meditsina
A A Shipov, L A Tabakova
Kosmicheskaia biologiia i aviakosmicheskaia meditsina
A A Shipov, V G Ovechkin
Kosmicheskaia biologiia i aviakosmicheskaia meditsina
P P Potapov
Kosmicheskaia biologiia i aviakosmicheskaia meditsina
A A Shipov, V G Ovechkin
Kosmicheskaia biologiia i aviakosmicheskaia meditsina
A M GeninI Iu Sarkisov
© 2021 Meta ULC. All rights reserved