“…The African clawed frog, Xenopus laevis, is an ectothermic vertebrate that can survive at low environmental temperatures. …”
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“…Male Xenopus laevis frogs have been observed to clasp other males in a sustained, amplectant position, the purpose of which is unknown. …”
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“…Notably, infection studies of the amphibian Xenopus laevis with the ranavirus Frog Virus 3 (FV3) have revealed that although the adult frog immune system is efficient at controlling RV infections, residual quiescent virus can be detected in mononuclear phagocytes of otherwise asymptomatic animals following the resolution of RV infections. …”
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“…Xenopus laevis eggs are used as a biological model system for studying fertilization and early embryonic development in vertebrates. …”
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“…We investigated whether FMRP affects neurogenesis in Xenopus laevis tadpoles that express a homolog of FMR1. …”
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“…Here, we provide the general features of TPO using Xenopus laevis TPO (xlTPO). Hepatic and splenic cells were cultured in liquid suspension with recombinant xlTPO. …”
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“…To characterize the intestinal responses to fasting and refeeding, we investigated morphological, biochemical, transcriptional and epigenetic changes in the intestine from adult male Xenopus laevis. RESULTS: Frogs were fed for 22 days, fasted for 22 days, or fasted for 21 days and refed for 1 day. …”
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“…African clawed frogs (Xenopus laevis) are often referred to as ‘purely aquatic’ but there are many publications which suggest extensive overland movements. …”
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“…BACKGROUND: The necessity of extracellular Ca(2+) for fertilization and early embryonic development in the African clawed frog, Xenopus laevis, is controversial. Ca(2+) entry into X. laevis sperm is reportedly required for the acrosome reaction, yet fertilization and embryonic development have been documented to occur in high concentrations of the Ca(2+) chelator BAPTA. …”
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“…Here, we show that V (mem) levels modulate innate immunity activity in Xenopus laevis embryos. We developed an assay in which X. laevis embryos are infected with a uropathogenic microorganism, in the presence or absence of reagents that modify V (mem), prior to the ontogenesis of the adaptive immune system. …”
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“…We recently used an endoscopy-based resection method to explore the consequences of cardiac injury in adult Xenopus laevis, obtaining the result that the adult Xenopus heart is unable to regenerate. …”
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“…In the African clawed frog Xenopus laevis, this depolarization is driven by Ca(2+)-activated Cl(−) efflux. …”
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“…In this study we investigated whether auditory perception exhibits sexual dimorphism in Xenopus laevis. To do this we measured event-related potentials (ERPs) evoked by white noise (WN) and conspecific calls in the telencephalon, diencephalon and mesencephalon respectively. …”
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“…Here we show that: oligomycin sensitive ATP synthase activity is significantly greater (~170 vs. 20 nmol/min(−1)/mg(−1)) in testes compared to oocytes in Xenopus laevis (X. laevis). Since ATP synthase activity is redox regulated, we explored a regulatory role for reversible thiol oxidation. …”
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“…The aim of the present work is to evaluate the effect of bulk and nano-encapsulated β-carotene on embryo development, by using the animal model Frog Embryo Teratogenesis Assay: Xenopus- FETAX. Xenopus laevis embryos were exposed from late gastrula till pharyngula (the phylotypic stage for vertebrates) to the concentrations of BULK β-carotene 150-3000 ng/mL and NANO β-carotene 0.75-30 ng/mL. …”
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“…Cell-free extract derived from the eggs of the African clawed frog Xenopus laevis is a well-established model system that has been used historically in bulk aliquots. …”
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“…Cell-free extracts from Xenopus laevis eggs are a model system for studying chromosome biology. …”
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