Acessibilidade / Reportar erro

COMPOSIÇÃO CORPORAL, NO 1º ESTRO, DE RATAS SUBMETIDAS A DIFERENTES GRAUS DE RESTRIÇÃO ALIMENTAR

Body composition of feed-restricted female rats, at the first estrus

Resumos

As autoras estudaram a composição corporal em proteína, água e gordura, em 2 grupos de ratas com restrição alimentar, que recebiam, respectivamente, 6g dia e 4g dia de uma dieta com 20% de proteína de caseína. Como percentagem de peso corporal houve aumento do teor de proteína e diminuição de água e de gordura nos grupos com restrição alimentar, em relação ao grupo controle. Na época do 19 estro a média ponderai não diferia, significativamente, nos 3 grupos.


At first estrus the feed-restricted rats were older and, proportionally to the age, leaner than the well fed animals. They had attained a greater proportion of protein and lesser proportion of water and fat; however the animals of the two restricted diet groups and the well fed group had the same weight.

First estrus was simultaneous with vaginal opening in 90% of the well fed animals, in 20% of the group I and in 0% of the group II.


Texto disponível apenas em PDF

REFERÊNCIAS BIBLIOGRÁFICAS

  • CRAWFORD, J.D. & OSLER, D.C. Body composition at menarchethe FRISCH-REVELLE hypothesis revisited. Pediatrics, Springfield, 50:449,1975.
  • EDELMAN, I.S. et alii. Further observations on total body water I - Normal values throught the life span. Surg. Gynec. Obstet., Chicago, 95:1-12,1952.
  • FRISCH, R.E. A method of prediction of age menarche from height and weight at ages 9 through 13 years. Pediatrics, Springfield, 53:384-90,1974.
  • FRISCH, R.E. Control of the onset of puberty. Pediatrics, Springfield, 50:445,1972.
  • FRISCH, R.E. Fatness of girls from menarche to age 18 years with a normogran. Hum. Biol., Detroit, 48: 353-9,1976.
  • FRISCH, R.E. Influence on age of menarche. Lancet, London, 2:1007-8,1973.
  • FRISCH, R.E. Pubertal adipose tissue: is it necessary for normal sexual maturation? Evidence from the rat and human female. Fed. Proc., Washington, 39:2395-400,1980.
  • FRISCH, R.E. Weight at menarche: similarity for well nourished girls at differing ages and evidence for historical constancy. Pediatrics, Springfield, 50:445-50,1972.
  • FRISCH, R.E. & Mc ARTHUR, J. Menstrual cycles: fatness as a determinant of minimal weight and adolescent events. Science, Washington, 185:949,1974.
  • FRISCH, R.E. & REVELLE, R. Components of weight at menarche and the initiation of the adolescence. Hum. Biol., Detroit, 45:469-483,1973.
  • FRISCH, R.E. & REVELLE, R. Height and weight at menarche and a hipothesis of critical body weights and adolescents events. Science, Washington, 169:397-399,1970.
  • FRISCH, R.E. & REVELLE, R. Height and weight at menarche and a hypothesis of menarche. Arch Dis. Child., London, 46:695-701,1971.
  • FRISCH, R.E.; REVELLE, R.; COOK, S. Components of critical weight at menarche and at initiation of the adolescent spurt: estimated total water, lean body mass and fat. Hum. Biol., Detroit, 45:469, 1973.
  • KENNEDY, G.C. Interactions between feeding behavior and hormones during growth. Ann. N.Y. Acad. Sci., New York, 157:1049-1061,1969.
  • KENNEDY, G.C. & MITRA, J. Body weight and food intake as initiating factors for puberty in the rat. J. Physiol., London, 166:408-418,1963.
  • MATTOS, L.U.; KAJIYAMA, H.; MEGRICH, E.; KNOCH, M.; STEUER, R. Velocidade de crescimento e desenvolvimento sexual de ratas submetidas a diferentes graus de restrição alimentar. Rev. Esc. Enf. USP, São Paulo, 18(2):121-8,1984.
  • NIMROD, R. & RYAN, K.J. Aromâtization of androgens by human abdominal and Breast fat tissue. J. Cin. Endocr., Springfield, 40:367-377,1975.
  • PARIZKOVA, J. Impact of age diet and exercice on man's body composition. Ann. N.Y. Acad. Sci., New York, 110:661-674,1963.
  • WIDDOWSON, E.M. & Mc CANCE, R.A. Some effects of acelerating growth. Proc Roy. Soc, London, 152:188-206,1960.
  • WILEN, R. & NAFTOLIN, F. Age and weight gain in the individual pubertal female - Rhesus Monkey (Macaca mulatta). Biol, of Repr., New York, 15:356-360, 1976.
  • WILEN, R. & NAFTOLIN, F. Pubertal food intake and body weight and composition in the feed-restricted female rat: comparison with well fed animals. Pediat. Res., Basel, 12:263-267, 1978.

Datas de Publicação

  • Publicação nesta coleção
    Dez 1984
Universidade de São Paulo, Escola de Enfermagem Av. Dr. Enéas de Carvalho Aguiar, 419 , 05403-000 São Paulo - SP/ Brasil, Tel./Fax: (55 11) 3061-7553, - São Paulo - SP - Brazil
E-mail: reeusp@usp.br