Results 31 to 40 of about 2,477 (187)

Peptidase activities in Crotalus durissus terrificus semen [PDF]

open access: yesREPRODUCTION, 2008
AbstractTo understand the role of peptidases in seminal physiology of Crotalus durissus terrificus, activity levels of representative enzymes in semen and their sensitivities to inhibitors, cofactors, and peptide hormones were evaluated. The existence of seminal fractions and the association of peptidases with these fractions were also characterized ...
Camila Eduardo, Marinho   +4 more
openaire   +2 more sources

Cell Penetrating Peptides: Classification, Mechanisms, Methods of Study, and Applications

open access: yesChemMedChem, Volume 18, Issue 17, September 1, 2023., 2023
Cell penetrating peptides constitute a heterogeneous class of peptides with peculiar features that make them particularly well‐suited for the delivery of almost every type of molecule. Due to their versatility, they are becoming increasingly important in various biomedical applications.
Alessandro Gori   +4 more
wiley   +1 more source

When to shed? Patterns and drivers of time to first ecdysis in snakes

open access: yesEcology and Evolution, Volume 13, Issue 8, August 2023., 2023
We assessed patterns in time to postnatal ecdysis in snake species, and related measures to various biological traits. Time to postnatal ecdysis can be shorter or longer than the ancestral state, which we estimated at 8–9 days, indicating that there are several competing drivers for time to postnatal ecdysis.
Cecilia Wagner   +4 more
wiley   +1 more source

Environmental drivers of tropical forest snake phenology: Insights from citizen science

open access: yesEcology and Evolution, Volume 13, Issue 7, July 2023., 2023
We used long‐term time‐series data to investigate the environmentally driven changes in the activity patterns of 25 snake species in the Atlantic Forest region of southeastern Brazil. Overall, we found snake activity patterns were largely driven by temperature and humidity, with venomous and non‐venomous species responding differently to climate.
Letízia M. G. Jesus   +4 more
wiley   +1 more source

Species out of sight: elucidating the determinants of research effort in global reptiles

open access: yesEcography, Volume 2023, Issue 3, March 2023., 2023
More than two million species have been described so far, but our knowledge on most taxa remains scarce or inexistent, and the available biodiversity data is often taxonomically, phylogenetically and spatially biased. Unevenness in research effort across species or regions can interact with data biases and compromise our ability to properly study and ...
Jhonny J. M. Guedes   +2 more
wiley   +1 more source

Liver dysfunction in patients bitten by Crotalus durissus terrificus (Laurenti, 1768) snakes in Botucatu (State of São Paulo, Brazil) Alterações hepáticas em doentes picados por serpentes Crotalus durissus terrificus (Laurenti, 1768) na região de Botucatu, Estado de São Paulo, Brasil

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 1995
Thirty-two patients bitten by venomous snakes sixteen by Bothrops spp. and sixteen by Crotalus durissus terrificus were studied. The group comprised thirty males and two females, aged eight to sixty-three years (mean 33±15).
Benedito Barra Viera   +3 more
doaj   +1 more source

A most unusual tail: Scoliosis in a wild Australian skink, and reported incidences and suggested causes of similar malformations amongst squamates

open access: yesAustral Ecology, Volume 47, Issue 3, Page 723-728, May 2022., 2022
AbstractMalformations of vertebrae potentially occur across many taxa, particularly in Testudines, which are susceptible to kyphosis (dorsoventral curvature of the spine). Such malformations may stem from either genetic or environmental origins, and their prevalence and associated impacts on survival remain poorly understood.
Philip W. Bateman   +3 more
wiley   +1 more source

Actions of Crotalus durissus terrificus venom and crotoxin on the isolated rat kidney

open access: yesBrazilian Journal of Medical and Biological Research, 2001
Many studies have reported the occurrence of lethal acute renal failure after snakebites. The aim of the present investigation was to determine alterations in renal function produced by Crotalus durissus terrificus venom and crotoxin as well as the ...
H.S.A. Monteiro   +3 more
doaj   +1 more source

Transferência do Hepatozoon tupinambis, parasita do lagarto Tupinambis teguixin, para a serpente cascavel (Crotalus durissus terrificus), por intermédio do mosquito Culex fatigans

open access: yesMemorias do Instituto Oswaldo Cruz, 1974
Os autores obtiveram a transferência do Hepatozoon tupinambis (Laveran e Salibeni, 1909) parasita do lagarto Teiidae, Tupinambis teguixin, L., para a serpente cascavel, Crotalus durissus terrificus (Laur.), alimentando-a com mosquitos experimentalmente ...
Samuel B. Pessôa   +2 more
doaj   +1 more source

Biochemical and pharmacological similarities between the venoms of newborn Crotalus durissus durissus and adult Crotalus durissus terrificus rattlesnakes

open access: yesToxicon, 1991
A comparative study was performed with the venoms of newborn Crotalus durissus durissus, adult Crotalus durissus terrificus and adult Crotalus durissus durissus snakes. Venom of newborn specimens of C.d. durissus is very similar to that of adult specimens of C.d.
Gutiérrez, José María   +3 more
openaire   +4 more sources

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