Topic
Coturnix
About: Coturnix is a research topic. Over the lifetime, 953 publications have been published within this topic receiving 23305 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: Most cases exhibit generalized weakness, progressing to severe muscle pain and lower limb paralysis, vomiting and discolored urine (myoglobinuria), and patients may experience severe gastroenteritis-diarrhea, fever, voice loss and death from cardiac or kidney failure.
Abstract: Coturnism is human poisoning from European migratory quail (Coturnix commix coturnix L.). While the name is recent, coturnism has been documented since antiquity. Most cases exhibit generalized weakness, progressing to severe muscle pain and lower limb paralysis, vomiting and discolored urine (myoglobinuria). Patients may experience severe gastroenteritis-diarrhea, fever, voice loss and death from cardiac or kidney failure. Toxic quail cannot be differentiated from safe. Geographical distribution of coturnism is concentrated in four discontinuous regions of the Old World: northern Algeria, southern France, mainland and eastern insular Greece, and the southwestern Soviet Union. Quail are toxic in Algeria and France during the northward spring migration but safe to eat on the autumn return flight. This pattern is reversed in Greece and the Soviet Union where quail are poisonous on the southern, autumn flight. Ancient writers and modern scientists have suggested that seeds from hemlock (Conium maculatum) or ...
12 citations
TL;DR: Results showed that selection of the time of day for application of an 8-h restricted feeding regimen affected BW, fertility, hatchability, egg production, egg specific gravity, and oviposition time in Japanese quail.
12 citations
TL;DR: It is concluded that developmental exposure to 60% O(2) attenuates the HVR in quail and that the critical period for this plasticity encompasses the late prenatal and early postnatal periods.
12 citations
TL;DR: Genetic selection for parthenogenetic development increased the incidence of parthenogenesis and embryonic size but decreased egg production and average position of an egg in a clutch as generations of selection increased.
12 citations
TL;DR: In this article, the expression of the identified CYP1 genes and AHR1 were compared in chicken and quail embryos, comparing the basal and induced levels of these genes.
Abstract: Background: Cytochrome P450 1 (CYP1) genes are biomarkers for aryl hydrocarbon receptor (AHR) agonists and may be involved in some of their toxic effects. CYP1s other than the CYP1As are poorly studied in birds. Here we characterize avian CYP1B and CYP1C genes and the expression of the identified CYP1 genes and AHR1, comparing basal and induced levels in chicken and quail embryos. Methodology/Principal Findings: We cloned cDNAs of chicken CYP1C1 and quail CYP1B1 and AHR1. CYP1Cs occur in several bird genomes, but we found no CYP1C gene in quail. The CYP1C genomic region is highly conserved among vertebrates. This region also shares some synteny with the CYP1B region, consistent with CYP1B and CYP1C genes deriving from duplication of a common ancestor gene. Real-time RT-PCR analyses revealed similar tissue distribution patterns for CYP1A4, CYP1A5, CYP1B1, and AHR1 mRNA in chicken and quail embryos, with the highest basal expression of the CYP1As in liver, and of CYP1B1 in eye, brain, and heart. Chicken CYP1C1 mRNA levels were appreciable in eye and heart but relatively low in other organs. Basal transcript levels of the CYP1As were higher in quail than in chicken, while CYP1B1 levels were similar in the two species. 3,39,4,5,59-Pentachlorobiphenyl induced all CYP1s in chicken; in quail a 1000-fold higher dose induced the CYP1As, but not CYP1B1. Conclusions/Significance: The apparent absence of CYP1C1 in quail, and weak expression and induction of CYP1C1 in chicken suggest that CYP1Cs have diminishing roles in tetrapods; similar tissue expression suggests that such roles may be met by CYP1B1. Tissue distribution of CYP1B and CYP1C transcripts in birds resembles that previously found in zebrafish, suggesting that these genes serve similar functions in diverse vertebrates. Determining CYP1 catalytic functions in different species should indicate the evolving roles of these duplicated genes in physiological and toxicological processes.
12 citations