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Titolo:
Ascorbic acid and reproduction in fish: endocrine regulation and gamete quality
Autore:
Dabrowski, K; Ciereszko, A;
Indirizzi:
Ohio State Univ, Sch Nat Resources, Columbus, OH 43210 USA Ohio State Univ Columbus OH USA 43210 t Resources, Columbus, OH 43210 USA Polish Acad Sci, Dept Androl, Olsztyn, Poland Polish Acad Sci Olsztyn Poland h Acad Sci, Dept Androl, Olsztyn, Poland
Titolo Testata:
AQUACULTURE RESEARCH
fascicolo: 8, volume: 32, anno: 2001,
pagine: 623 - 638
SICI:
1355-557X(200108)32:8<623:AAARIF>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
TROUT ONCORHYNCHUS-MYKISS; FEMALE RAINBOW-TROUT; VITAMIN-C SUPPLEMENTATION; SCORBUTIC MUTANT RATS; HUMAN SEMINAL PLASMA; SALMO-GAIRDNERI; GUINEA-PIG; DEHYDROASCORBIC ACID; BRAIN ASCORBATE; COMMON CARP;
Keywords:
vitamin C; steroids; salmonid; rainbow trout; sperm; sexual maturation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
105
Recensione:
Indirizzi per estratti:
Indirizzo: Dabrowski, K Ohio State Univ, Sch Nat Resources, 2021 Coffey Rd, Columbus,OH 43210 USA Ohio State Univ 2021 Coffey Rd Columbus OH USA 43210 3210 USA
Citazione:
K. Dabrowski e A. Ciereszko, "Ascorbic acid and reproduction in fish: endocrine regulation and gamete quality", AQUAC RES, 32(8), 2001, pp. 623-638

Abstract

High ascorbic acid concentrations have been associated with gonad and brain tissues in teleost fishes. Although a direct dietary effect on gamete quality has been given some attention recently, the mechanism of action of ascorbate along the cascade of reproductive events in the hypothalamus, pituitary and gonads has not been defined. Data relating to gamete production andquality, as well as a possible protective role for ascorbate against cumulative genetic defects during gametogenesis and congenital malformation during gestation (embryonic development) is reviewed. It is suggested that the gonad growth in response to gonadotropin stimulation involves direct interaction between catecholamines and steroid hormones and their receptor sites. This interaction acts as a regulatory mechanism of ascorbate absorption, transfer and metabolism (degradation and/or renewal) in the reproductive system. We conclude that ascorbic acid is a leading nutrient in reproductive tissue functions and further research is needed on: (1) its antioxidant effect on gametes' (sperm and ova) capacity to prevent DNA damage occurring prior to (endogenous) and after spawning (environmental insults); (2) its dietary requirement to optimize survival and physiological recovery in multiplespawners; (3) the integration mechanism of ascorbic acid action as part ofthe overall endocrine regulation of neurohormonal-hormonal pathway in fishreproduction; and (4) the possible role for ascorbate in regulating fish maturation and/or infertility in the presence of enhanced UV-radiation or conditions of intensive aquaculture (hypoxia. oxygen supersaturation, dietarypro-, and antioxidants).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 08:10:18