... of Biologists Limited 2003 2003 frog skin current-fluctuation (noise) analysis prolactin active Na + transport epithelial Na + channel (ENaC) tree frog Hyla arborea japonica In amphibians, metamorphosis is induced by thyroid hormone in vivo . It has long been thought that the juvenile...

...Jordi Ehrenfeld; Ulla Klein ABSTRACT Frogs are faced with various osmoregulatory problems, such as compensation of salt and water loss or metabolic acidification. Being exposed both to air and to pond water of low salinity in their natural habitat, the epithelium of the frog skin serves as one...

... excretion in vertebrates. © 1992 by Company of Biologists 1992 E. histolytica insect midgut insect sensillum frog skin mitochondria-rich cell kidney intercalated cell osteoclast neutrophil macrophage The participation of V-ATPases in numerous aspects of endocytosis, secretion...

...Carlos Alberto Baptista; Margarida Perestrello Ramos; Carlos Henriques De Jesus ABSTRACT Oscillations in the electrical parameters elicited by Li + added to the mucosal side of frog skin in vitro were studied under different experimental conditions. The correlation between the damping coefficient...

...Karl Zerahn ABSTRACT Active transport of Tl + by frog skin was compared with transport of K + and Rb + . Tl + was transported actively (using a Na,K-ATPase) by the epithelium and the adrenalin-stimulated glands. In the epithelium, K + , Tl + and Rb + competed for transport in the ratio 1:1 ·7: 0· 9...