PMID: 752060Dec 1, 1978Paper

Non-release of lactic acid from anaerobic swimming muscle of plaice Pleuronectes platessa L.: a stress reaction

The Journal of Experimental Biology
C S Wardle

Abstract

1. Plaice caught by trawl net and plaice exercised in laboratory tanks all show high levels of lactic acid (33--44 mmol/kg) in the anaerobic swimming muscle. During exhausting exercise 2 moles of lactate are formed from 1 mole of glycogen glucose. After an 8 h rest 50--80% of the muscle glycogen is restored. 2. Blood lactate levels remain low (0.5--2 mmol/l) in the majority of plaice caught by trawl. In a small number of plaice, peak levels over 5 mmol/l are reached 2--4 h after capture. Low blood lactate levels could be guaranteed in all fish exercised 24 h after the stress of capture and in tank-adapted fish exercised and injected with the beta-adrenergic stimulating drug, isoxsuprine hydrochloride. The blood lactate in plaice, tank-adapted for more than 8 days and then exercised, may reach peak levels up to 5 mmol/l 2--4 h later. 3. High blood lactate levels were obtained by injecting the beta-adrenergic block propranolol to stressed exercised fish. The alpha-adrenergic block did not have this effect. All plaice with blood lactate levels reaching 5--12 mmol/l died. 4. The results indicate that the muscle cells regulate the release or nonrelease of their lactate load to the blood stream and increases in the blood circulating ...Continue Reading

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

Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
P K Knudsen, F B Jensen
Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology
R D FellJ O Holloszy
European Journal of Applied Physiology and Occupational Physiology
R J Maughan, D C Poole
© 2021 Meta ULC. All rights reserved