Results 1 to 10 of about 54,958 (229)

Description of the antipredatory head-wobble behaviour in Chilean rear-fanged snakes Tachymenis peruviana Wiegmann, 1835 and Tachymenis chilensis coronellina Werner, 1898 (Serpentes, Dipsadidae) [PDF]

Herpetozoa, 2022
In this work, we describe the first records of head-wobble behaviour for Tachymenis peruviana and T. chilensis coronellina. We analyse this behaviour (occurrence, frequency) and accompanying displays in both species. Of particular note is that T.
Claudio Reyes-Olivares, Alex Vera-Quispe, Alejandro Zúñiga, Félix A. Urra   +3 more
doaj   +3 more sources

First record of the invasive gecko, Lepidodactylus lugubris Duméril & Bibron, 1836 in mainland Chile (Squamata, Gekkonidae) [PDF]

Herpetozoa, 2020
In Chile, the presence of Mourning Gecko, Lepidodactylus lugubris Duméril & Bibron, 1836 has been recognized for Easter Island (Rapa Nui) from late 19th century. Here, we report the first observation of a juvenile specimen of L.
Felix A. Urra, Alejandro Zúñiga, Alejandro Bruno Miranda-Calle, Nel Melero   +3 more
doaj   +3 more sources

Extracellular Matrix Signals as Drivers of Mitochondrial Bioenergetics and Metabolic Plasticity of Cancer Cells During Metastasis

Frontiers in Cell and Developmental Biology, 2021
The role of metabolism in tumor growth and chemoresistance has received considerable attention, however, the contribution of mitochondrial bioenergetics in migration, invasion, and metastasis is recently being understood.
Félix A. Urra, Félix A. Urra, Sebastián Fuentes-Retamal, Sebastián Fuentes-Retamal, Charlotte Palominos, Charlotte Palominos, Yarcely A. Rodríguez-Lucart, Yarcely A. Rodríguez-Lucart, Camila López-Torres, Camila López-Torres, Ramiro Araya-Maturana, Ramiro Araya-Maturana   +11 more
doaj   +1 more source

Pictolysin-III, a Hemorrhagic Type-III Metalloproteinase Isolated from Bothrops pictus (Serpentes: Viperidae) Venom, Reduces Mitochondrial Respiration and Induces Cytokine Secretion in Epithelial and Stromal Cell Lines

Pharmaceutics, 2023
From the venom of the Bothrops pictus snake, an endemic species from Peru, we recently have described toxins that inhibited platelet aggregation and cancer cell migration.
Dan E. Vivas-Ruiz, Paola Rosas, Alex Proleón, Daniel Torrejón, Fanny Lazo, Ana Belén Tenorio-Ricca, Francisco Guajardo, Cristopher Almarza, Víctor Andrades, Jessica Astorga, Daniel Oropesa, Jorge Toledo, María Jesús Vera, Jorge Martínez, Ramiro Araya-Maturana, Karen Dubois-Camacho, Marcela A. Hermoso, Valéria G. Alvarenga, Eladio Flores Sanchez, Armando Yarlequé, Luciana Souza Oliveira, Félix A. Urra   +21 more
doaj   +1 more source

An Emergent Role for Mitochondrial Bioenergetics in the Action of Snake Venom Toxins on Cancer Cells

Frontiers in Oncology, 2022
Beyond the role of mitochondria in apoptosis initiation/execution, some mitochondrial adaptations support the metastasis and chemoresistance of cancer cells. This highlights mitochondria as a promising target for new anticancer strategies.
Félix A. Urra, Félix A. Urra, Félix A. Urra, Dan E. Vivas-Ruiz, Dan E. Vivas-Ruiz, Eladio Flores Sanchez, Eladio Flores Sanchez, Ramiro Araya-Maturana, Ramiro Araya-Maturana, Ramiro Araya-Maturana   +9 more
doaj   +1 more source

The Toxic Components and the Clinical Uses of Snake Venom: A Review [PDF]

Asia Pacific Journal of Medical Toxicology, 2021
Background: The venom of different snake species has a distinctive composition. This composition can be also affected by other factors such as age, sex, geographical, and seasonal variations.
Sareh Dortaj
doaj   +1 more source

Leucism and albinism in the rear-fanged snakes Tachymenis chilensis chilensis (Schlegel, 1837) and Tachymenis chilensis coronellina Werner, 1898 (Serpentes, Dipsadidae) [PDF]

Herpetozoa, 2021
Herein, we report the first observation of two different coloration patterns in Chilean snakes. Based on the alteration of wild coloration patterns, a juvenile specimen of Tachymenis chilensis coronellina Werner, 1898 was diagnosed with albinism and a ...
Felix A. Urra, Alejandro Zúñiga, Nel Melero, Nibaldo Reyes, Yarela Herrera, Alejandro Bruno Miranda-Calle, Juan Carlos Ortiz   +6 more
doaj   +3 more sources

A Review of the Proteomic Profiling of African Viperidae and Elapidae Snake Venoms and Their Antivenom Neutralisation

Toxins, 2022
Snakebite envenoming is a neglected tropical disease (NTD) that results from the injection of snake venom of a venomous snake into animals and humans.
Benedict C. Offor, Beric Muller, Lizelle A. Piater   +2 more
doaj   +1 more source

Endogenous asymmetric dimethylarginine accumulation contributes to the suppression of myocardial mitochondrial biogenesis in type 2 diabetic rats

Nutrition & Metabolism, 2020
Background Suppressed mitochondrial biosynthesis has been reported to be the early signal of mitochondrial dysfunction which contributes to diabetic cardiomyopathy, but the mechanism of mitochondrial biosynthesis suppression is unclear.
Yan Xiong, Chun-Xia Hai, Wei-Jin Fang, Yan-Ping Lei, Xiao-Mei Li, Xin-Ke Zhou   +5 more
doaj   +1 more source

Using yeast two-hybrid system and molecular dynamics simulation to detect venom protein-protein interactions

Current Research in Toxicology, 2021
Proteins and peptides are major components of snake venom. Venom protein transcriptomes and proteomes of many snake species have been reported; however, snake venom complexity (i.e., the venom protein-protein interactions, PPIs) remains largely unknown ...
Ying Jia, Paulina Kowalski, Ivan Lopez
doaj   +1 more source