Results 81 to 90 of about 7,379 (244)

Evolution of Phospholipase A2 in Bees and Flies

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
This study investigated the evolution of the PLA2 gene in bees and flies and compared the evolutionary rate between them, which denotes the toxic group and the non‐toxic group. The results showed that PLA2 was under purifying selection and that an accelerated evolution of PLA2 occurred in the toxic group when compared with the non‐toxic group ...
Siqi Yang, Minyu Wu, Ping Feng
wiley   +1 more source

Scorpions and their Venom [PDF]

open access: yesNature, 1922
PHYSALIA in “Animaux Venimeux,” p. 252, says that in all venomous animals their immunity to their own venom is limited, and announces that in an experiment a scorpion, Bulteus australis, was killed by an injection of the same venom as its own. I should like to add further observations from personal experience, bearing on this very interesting subject.
openaire   +1 more source

Hepato- and nephroprotective effects of bradykinin potentiating factor from scorpion (Buthus occitanus) venom on mercuric chloride-treated rats [PDF]

open access: yes, 2016
Bioactive peptides such as bradykinin potentiating factor (BPF), have, anti-oxidative, anti-inflammatory, immunomodulatory and ameliorative effects in chronic diseases and play a potential role in cancer prevention.
Hammad, Seddik   +3 more
core   +1 more source

Subtype Specificity of β-Toxin Tf1a from Tityus fasciolatus in Voltage Gated Sodium Channels

open access: yesToxins, 2018
Scorpion venoms are a complex mixture of components. Among them the most important are peptides, which presents the capacity to interact and modulate several ion channel subtypes, including voltage-gated sodium channels (NaV).
Daniel Oliveira da Mata   +6 more
doaj   +1 more source

The Evolution of Fangs, Venom, and Mimicry Systems in Blenny Fishes [PDF]

open access: yes, 2017
Venom systems have evolved on multiple occasions across the animal kingdom, and they can act as key adaptations to protect animals from predators. Consequently, venomous animals serve as models for a rich source of mimicry types, as non-venomous ...
Amanda Nouwens   +23 more
core   +6 more sources

Ethnomedicinal Uses, Phytochemistry, Pharmacological Activities, and Toxicology of the Subfamily Gomphrenoideae (Amaranthaceae): A Comprehensive Review

open access: yesChemistry &Biodiversity, Volume 22, Issue 9, September 2025.
ABSTRACT The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its ...
Dayanna Isabel Araque Gelves   +3 more
wiley   +1 more source

Cytotoxic effects of Smp24 and Smp43 scorpion venom antimicrobial peptides on tumour and non-tumour cell lines [PDF]

open access: yes, 2019
Smp24 and Smp43 are novel cationic AMPs identified from the venom of the Egyptian scorpion Scorpio maurus palmatus, having potent activity against both Gram-positive and Gram-negative bacteria as well as fungi.
Abdel-Rahman, Mohamed A   +6 more
core   +1 more source

Rare Records of Tropical Spiders Preying on Vertebrates in Southwest China 热带地区罕见的蜘蛛捕食脊椎动物记录:来自中国西南部的四例观察

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 334-338, September 2025.
This study reports four rare events of spiders preying on vertebrates in the Xishuangbanna Tropical Botanical Garden, Southwest China. The predators included a giant golden orb‐weaver, huntsman spiders, and a wandering spider, while the prey consisted of a small bird, a blind snake, a gecko, and a tiny shrew.
Wanlu Liu   +6 more
wiley   +1 more source

Antigenic Cross-Reactivity Anti-Birtoxin Antibody against Androctonus crassicauda Venom

open access: yesJournal of Arthropod-Borne Diseases, 2015
Background: Antivenom is still widely used in the treatment of envenomation as there are no vaccines or other effective agents available against animal venoms.
SuhandanAdigüzel Van-Zoelen   +2 more
doaj  

Endangered Saudi Arabian plants having ethnobotanical evidence as antidotes for scorpion envenoming

open access: yesClinical Phytoscience, 2020
Scorpion sting envenoming in Saudi Arabia posed major public health problems. Conventional treatment with antivenom with its limitations and hazards called for the use of support remediation like prazosin therapy and phytotherapy as alternative solutions
Abdulrahman Khazim Al-Asmari   +3 more
doaj   +1 more source

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