Results 31 to 40 of about 823 (164)

Anaphylaxis to venom of the Pachycondyla species ant

Journal of Allergy and Clinical Immunology, 1999
In the southeastern United States, imported fire ants have caused systemic reactions with a high incidence. On the contrary, in Korea Pachycondyla species ants (P chinensis and P solitaria), and the family Formicidae, which are in the genus Pachycondyla and the subfamily Ponerinae, have only occasionally caused systemic reactions.We sought to assess ...
Y Y, Yun, S H, Ko, J W, Park, C S, Hong
openaire   +3 more sources

Collection and Toxicity Studies of Ant Venom

Experimental Biology and Medicine, 1964
SummaryVenom from the desert ant, Pogonomyrmex barbatus, collected by 3 different techniques has been described. The observed effects of ant venom, when delivered by the intact viable animal into human skin, indicated a material of cholinergic properties which resulted in piloerection and sweating, and the capacity of eliciting an extensive and ...
M W, WILLIAMS, C S, WILLIAMS
openaire   +2 more sources

Venom of the giant ant Dinoponera quadriceps attenuates inflammatory pain in mouse cutaneous wound healing model

Acta Scientiarum: Biological Sciences, 2020
Arthropod venoms are potential sources of bioactive substances, providing tools for the validation of popular use and new drugs design. Ants belonging to the genus Dinoponera are used in the folk medicine to treat inflammatory conditions.
Ana Maria Sampaio Assreuy, Beatriz Lima Adjafre, Évilla Rayanne Oliveira Sousa, Ana Paula Negreiros Nunes Alves, Alana de Freitas Pires, Yves Quinet, Mário Rogério Lima Mota   +6 more
doaj   +1 more source

Intra-colony venom diversity contributes to maintaining eusociality in a cooperatively breeding ant

BMC Biology, 2023
Background Eusociality is widely considered to evolve through kin selection, where the reproductive success of an individual’s close relative is favored at the expense of its own. High genetic relatedness is thus considered a prerequisite for eusociality.
Samuel D. Robinson, Vanessa Schendel, Christina I. Schroeder, Sarah Moen, Alexander Mueller, Andrew A. Walker, Naomi McKinnon, G. Gregory Neely, Irina Vetter, Glenn F. King, Eivind A. B. Undheim   +10 more
doaj   +1 more source

Assessing the Proteomic Activity of the Venom of the Ant Ectatomma tuberculatum (Hymenoptera: Formicidae: Ectatomminae)

Psyche: A Journal of Entomology, 2018
Ectatomma tuberculatum has one of the most toxic venoms known among ants but there is no detailed study on its characteristics. In light of this, knowing the venom’s chemical composition is of paramount importance in order to obtain information about the
Juliana Rocha da Silva, Aline Zanotelli de Souza, Carlos Priminho Pirovani, Helena Costa, Aline Silva, João Carlos Teixeira Dias, Jacques Hubert Charles Delabie, Renato Fontana   +7 more
doaj   +1 more source

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

The Anatomical Record, EarlyView.
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, Stanislav N. Gorb, Timo Zeimet, Wencke Krings   +3 more
wiley   +1 more source

Samsum ant venom modulates the immune response and redox status at the acute toxic dose in vivo [PDF]

Journal of Venomous Animals and Toxins including Tropical Diseases
Background: Ant venoms express surface molecules that participate in antigen presentation involving pro- and anti-inflammatory cytokines. This work aims to investigate the expression of MHC-II, CD80 and CD86 on the polymorphonuclear cells (PMNs) in rats
Hossam Ebaid, Bahaa Abdel-Salam, Ibrahim Alhazza, Jameel Al-Tamimi, Iftekhar Hassan, Ahmed Rady, Ashraf Mashaly, Ahmed Mahmoud, Reda Sammour   +8 more
doaj   +2 more sources

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

The Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman, Robert K. Carr, Kate Trinajstic, Zerina Johanson, Oleg A. Lebedev   +4 more
wiley   +1 more source

Ecology and evolution of pyrazines in insects

Biological Reviews, EarlyView.
ABSTRACT Chemical communication is the oldest and most widespread form of signalling among and within organisms. Among the many compounds involved in such communication, pyrazines – nitrogen‐containing heterocyclic molecules – are especially intriguing due to their widespread occurrence across the tree of life, from bacteria and fungi to insects and ...
Zowi Oudendijk, Niklas Wahlberg, Johanna Mappes   +2 more
wiley   +1 more source

Ant venom immunotherapy in Australia: the unmet need [PDF]

Medical Journal of Australia, 2014
Jack jumper ant (JJA) venom allergy is an important cause of anaphylaxis in south-eastern Australia. The efficacy and real-world effectiveness of JJA venom immunotherapy (VIT) to prevent anaphylaxis in allergic patients are now well established, with an evidence base that is at least equivalent to that supporting VIT for allergy to other insect species.
Mullins, Raymond, Brown, Simon GA
openaire   +3 more sources