Proteolytic, hemorrhagic, and neurotoxic activities caused by Leptodeira annulata ashmeadii (Serpentes: Colubridae) Duvernoy's gland secretion

Wilderness & Environmental Medicine
K LemoineA Rodríguez-Acosta

Abstract

The main goal was to explore the different toxin properties (proteolytic, hemorrhagic, and neurotoxic) of Leptodeira annulata ashmeadii Duvernoy's gland secretion (DGS). To separate and characterize the different proteins present in L. annulata ashmeadii DGS, 20% sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) was run. To partially purify the proteolytic activity, Mono Q2 column ion-exchange chromatography was used. Hemorrhagic activity was analyzed in chicken embryos and mice (skin and peritoneum). Neurotoxic disorders were analyzed in mice inoculated with L. annulata ashmeadii DGS. The approximate relative mass of 21 protein bands was determined using the Multi-Analyst PC version 1.1 (Bio-Rad) program. L. annulata ashmeadii DGS proved to have proteolytic, hemorrhagic, and neurotoxic activities. Given the properties of the secretions of its Duvernoy's gland, L. annulata ashmeadii should be added to the list of venomous colubrids.

Citations

Jan 1, 2005·Toxicon : Official Journal of the International Society on Toxinology·Natalie G LumsdenWayne C Hodgson
Jul 9, 2016·Toxicon : Official Journal of the International Society on Toxinology·Kristian A Torres-BonillaMaria Alice da Cruz-Höfling
Jan 25, 2011·Toxicon : Official Journal of the International Society on Toxinology·María E GirónAlexis Rodríguez-Acosta
Apr 25, 2009·Revista Do Instituto De Medicina Tropical De São Paulo·Matias Reyes-LugoAlexis Rodríguez-Acosta
Mar 29, 2020·Biomédica : revista del Instituto Nacional de Salud·Teddy Angarita-SierraAriadna Rodríguez-Vargas
Sep 21, 2020·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Matías N SánchezMaría E Peichoto

❮ Previous
Next ❯

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.