Absorption, distribution and excretion of 3H 2-amino-4-phenylthiazole, a piscine anesthetic, in carp and crucian carp.
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Maintained cardiac pumping in anoxic crucian carp.
Like most vertebrates, humans die within minutes when deprived of molecular oxygen (anoxia), in part because of cardiac failure. In contrast, some freshwater turtles can survive anoxia for months at low temperatures, but to do so, they drastically suppress cardiac activity and autonomic cardiovascular control. Although Carassius carassius, the crucian carp, shares this anoxia tolerance, we show...
متن کاملDoes anoxia induce cell swelling in carp brains? In vivo MRI measurements in crucian carp and common carp.
Although both common and crucian carp survived 2 h of anoxia at 18 degrees C, the response of their brains to anoxia was quite different and indicative of the fact that the crucian carp is anoxia tolerant while the common carp is not. Using in vivo T(2) and diffusion-weighted magnetic resonance imaging (MRI), we studied anoxia induced changes in brain volume, free water content (T(2)), and wate...
متن کاملCell proliferation and gill morphology in anoxic crucian carp.
Is DNA replication/cell proliferation in vertebrates possible during anoxia? The oxygen dependence of ribonucleotide reductase (RNR) could lead to a stop in DNA synthesis, thereby making anoxic DNA replication impossible. We have studied this question in an anoxia-tolerant vertebrate, the crucian carp (Carassius carassius), by examining 5'-bromo-2'-deoxyuridine incorporation and proliferating c...
متن کاملCrucian carp heart performance during anoxia and acidosis
The crucian carp (Carassius carassius L.) exhibits the unique ability among vertebrates to maintain cardiac performance at normoxic levels during prolonged anoxia exposure. This thesis investigates the hypothesis that this phenomenon is possible because the heart likely never experiences an extracellular pH below 7.4 due to the fish’s exclusive trait of converting lactate and H ions to ethanol....
متن کاملEvidence for recombination of mitochondrial DNA in triploid crucian carp.
In this study, we report the complete mitochondrial DNA (mtDNA) sequences of the allotetraploid and triploid crucian carp and compare the complete mtDNA sequences between the triploid crucian carp and its female parent Japanese crucian carp and between the triploid crucian carp and its male parent allotetraploid. Our results indicate that the complete mtDNA nucleotide identity (98%) between the...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1974
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.40.339