Results 51 to 60 of about 41,853 (158)

Persistence without prosperity at the upper range margin: Elevation, microhabitat buffering and biotic pressure in a range‐expanding spider

open access: yesEcological Entomology, Volume 51, Issue 5, Page 926-943, October 2026.
Anthropogenic linear features facilitate high‐elevation colonization. Parasitoid pressure declines markedly with elevation. Cocoon damage increases despite reduced parasitism at high elevation. Abstract The upper elevational range limits of thermophilic arthropods reflect constraints on population persistence rather than simple presence.
Zdeněk Vacek   +2 more
wiley   +1 more source

Animal Venoms and Their Components: Molecular Mechanisms of Action

open access: yes, 2021
Animal venoms comprise numerous toxin families, consisting mainly of peptides and proteins [...
Yuri Utkin
core   +1 more source

Ranakinestatin-PPF from the Skin Secretion of the Fukien Gold-Striped Pond Frog, Pelophylax plancyi fukienensis: A Prototype of a Novel Class of Bradykinin B2 Receptor Antagonist Peptide from Ranid Frogs

open access: yesThe Scientific World Journal, 2014
The defensive skin secretions of many amphibians are a rich source of bradykinins and bradykinin-related peptides (BRPs). Members of this peptide group are also common components of reptile and arthropod venoms due to their multiple biological functions
Jie Ma   +8 more
doaj   +1 more source

Mandible composition and properties in two selected praying mantises (Insecta, Mantodea)

open access: yesThe Anatomical Record, Volume 309, Issue 9, Page 2298-2314, September 2026.
Abstract Insects process their food with their cuticle‐based mouthparts. These feeding structures reflect their diversity and can, in some cases, showcase adaptations in material composition, mechanical properties, and shape to suit their specific dietary preferences.
Malo Roze   +3 more
wiley   +1 more source

Biological Effects of Animal Venoms on the Human Immune System

open access: yes, 2022
Venoms are products of specialized glands and serve many living organisms to immobilize and kill prey, start digestive processes and act as a defense mechanism.
Cañas, Carlos A.   +9 more
core   +1 more source

Deadly cures: Unlocking anticancer potential of reptile, amphibian, and arthropod venoms through molecular innovation and nanotechnology

open access: yesNext Nanotechnology
Venoms from reptiles, amphibians, and arthropods represent a rich source of bioactive molecules with promising anticancer potential. Recent studies have highlighted the selective cytotoxicity of venom components including snake phospholipase A2 enzymes ...
Pranav Ragavendra Shankar, Apsara Unni
doaj   +1 more source

Bioactive compounds in insects—Composition, extraction, functionality, food applications, and safety concerns

open access: yesFood Biomacromolecules, Volume 3, Issue 3, Page 620-645, September 2026.
This review synthesizes 94 studies (2000–2025) exploring edible insects as sustainable sources of peptides, lipids, and chitin. Utilizing “green” extraction, these bioactives offer antioxidant and antimicrobial benefits for functional foods. However, addressing safety concerns like allergenicity and heavy metals through standardized frameworks remains ...
Blessing Rachael Adeyeye   +1 more
wiley   +1 more source

Peptide Toxins in Solitary Wasp Venoms

open access: yes, 2016
Solitary wasps paralyze insects or spiders with stinging venom and feed the paralyzed preys to their larva. Accordingly, the venoms should contain a variety of constituents acting on nervous systems.
Kohei Kazuma   +2 more
core   +1 more source

Host‐associated chemical cues mediating host‐finding behaviour in the larval ectoparasitoid Cephalonomia tarsalis

open access: yesPest Management Science, Volume 82, Issue 9, Page 8459-8467, September 2026.
Host‐associated volatiles mediate host location in Cephalonomia tarsalis, with faecal odours from fourth‐instar larvae, particularly 1‐pentadecene, attracting females and supporting the biological control of stored‐product pest beetles. Abstract BACKGROUND Understanding how parasitoids locate their hosts is essential for improving the effectiveness of ...
Lidia del Arco   +3 more
wiley   +1 more source

Differential effects of marimastat and prinomastat on the metalloprotease activity of various snake venoms

open access: yes
Snakebite envenoming is a neglected tropical disease, responsible for approximately 140,000 deaths globally each year. Vipers and elapid snakes represent the most significant snake families in medical contexts, exhibiting a variety of venom components ...
Ramírez, David   +13 more
core   +1 more source

Home - About - Disclaimer - Privacy