Results 41 to 50 of about 4,550 (231)

A roadmap to the enzymes from spider venom: biochemical ecology, molecular diversity, and value for the bioeconomy

Frontiers in Arachnid Science
Spiders are ancient and highly successful predators, which use venom for both predation and defense. Their venoms are complex mixtures of potent biological molecules, emerging as a prolific source of biomolecular innovation in agriculture, biomedicine ...
Josephine Dresler, Josephine Dresler, Ignazio Avella, Ignazio Avella, Maik Damm, Maik Damm, Ludwig Dersch, Ludwig Dersch, Jonas Krämer, Jonas Krämer, Andreas Vilcinskas, Andreas Vilcinskas, Andreas Vilcinskas, Tim Lüddecke, Tim Lüddecke   +14 more
doaj   +1 more source

Chemical and Biological Characteristics of Antimicrobial α-Helical Peptides Found in Solitary Wasp Venoms and Their Interactions with Model Membranes

Toxins, 2019
Solitary wasps use their stinging venoms for paralyzing insect or spider prey and feeding them to their larvae. We have surveyed bioactive substances in solitary wasp venoms, and found antimicrobial peptides together with some other bioactive peptides ...
Marcia Perez dos Santos Cabrera, Marisa Rangel, João Ruggiero Neto, Katsuhiro Konno   +3 more
doaj   +1 more source

An Economic Dilemma between Molecular Weapon Systems May Explain an Arachno-Atypical Venom in Wasp Spiders (Argiope bruennichi)

Biomolecules, 2020
Spiders use venom to subdue their prey, but little is known about the diversity of venoms in different spider families. Given the limited data available for orb-weaver spiders (Araneidae), we selected the wasp spider Argiope bruennichi for detailed ...
Tim Lüddecke, Björn M. von Reumont, Frank Förster, André Billion, Thomas Timm, Günter Lochnit, Andreas Vilcinskas, Sarah Lemke   +7 more
doaj   +1 more source

Isolation of two insecticidal toxins from venom of the Australian theraphosid spider Coremiocnemis tropix [PDF]

, 2016
© 2016 Elsevier Ltd Sheep flystrike is caused by parasitic flies laying eggs on soiled wool or open wounds, after which the hatched maggots feed on the sheep flesh and often cause large lesions.
Alewood, PF, Bosmans, F, Durek, T, Dziemborowicz, S, Er, SY, Gilchrist, J, Herzig, V, Ikonomopoulou, MP, King, GF, Nicholson, GM, Pineda, SS, Smith, JJ   +11 more
core   +1 more source

Electrophysiological evaluation of the effect of peptide toxins on voltage-gated ion channels: a scoping review on theoretical and methodological aspects with focus on the Central and South American experience [PDF]

Journal of Venomous Animals and Toxins including Tropical Diseases
The effect of peptide toxins on voltage-gated ion channels can be reliably assessed using electrophysiological assays, such as the patch-clamp technique.
Jessica Rojas-Palomino, Alejandro Gómez-Restrepo, Cristian Salinas-Restrepo, César Segura, Marco A. Giraldo, Juan C. Calderón   +5 more
doaj   +1 more source

Potency Testing of Venoms and Antivenoms in Embryonated Eggs: An Ethical Alternative to Animal Testing

Toxins, 2021
Venoms are complex mixtures of biologically active molecules that impact multiple physiological systems. Manufacture of antivenoms (AVs) therefore requires potency testing using in vivo models to ensure AV efficacy. As part of ongoing research to replace
Erin E. Verity, Kathy Stewart, Kirsten Vandenberg, Chi Ong, Steven Rockman   +4 more
doaj   +1 more source

Comparisons of Protein and Peptide Complexity in Poneroid and Formicoid Ant Venoms [PDF]

, 2016
© 2016 American Chemical Society. Animal venom peptides are currently being developed as novel drugs and bioinsecticides. Because ants use venoms for defense and predation, venomous ants represent an untapped source of potential bioactive toxins.
Aili, SR, Dejean, A, Escoubas, P, Koh, JMS, Nicholson, GM, Orivel, J, Padula, MP, Touchard, A   +7 more
core   +2 more sources

Quantitative muscle architecture in large carnivorous marsupials (Marsupialia: Dasyuridae) and links to substrate use and prey processing

The Anatomical Record, EarlyView.
Abstract The Dasyurid species Sarcophilus harrisii, Dasyurus maculatus, and Dasyurus viverrinus, occupying diverse ecological niches and forming a guild structure in Tasmania, provide a basis for examining the roles of various forelimb muscle groups in prey capture and locomotion.
Riya G. Bidaye, Samuel H. Frenkel, David P. Hocking, Alistair R. Evans, Justin W. Adams   +4 more
wiley   +1 more source

Friends or Foes? Emerging Impacts of Biological Toxins [PDF]

, 2019
Toxins are substances produced from biological sources (e.g., animal, plants, microorganisms) that have deleterious effects on a living organism. Despite the obvious health concerns of being exposed to toxins, they are having substantial positive impacts
Casewell, N.R., Clark, G.C., Elliott, C.T., Harvey, A.L., Jamieson, A.G., Strong, Peter, Turner, A.D.   +6 more
core   +6 more sources

A neuro‐behavioural model of neophobia

Biological Reviews, EarlyView.
ABSTRACT Fear can be defined as the internal neurological state that releases a repertoire of behaviours an animal performs to reduce the effect of an aversive factor. Neophobia, the fear of novelty, is a fundamental behavioural trait observed across a wide range of species from arthropods to humans.
Arik Dorfman, Aziz Subach, Inon Scharf
wiley   +1 more source