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The modifications of mitotic and labelling indices in animals killed at different hours of the day were analysed. The invertase activity was also assayed. This brush border enzyme, synthetized by the differentiating cells, showed a clear circadian rhythm with a maximum in the night and a minimum near the end of the light period. Mitotic and labelling indices showed the highest activity in the night and at noon. The positions of mitotic and labelled epithelial cells in the crypt were also determined. The frequency of labelled cells in the different positions of the crypt evidenced a shift of these cells towards the crypt-villus junction in the late afternoon with a consequent reduction of the differentiating compartment.
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
June 1982,
Strahlentherapie,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
January 1982,
Acta radiologica. Oncology,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
November 1988,
Biulleten' eksperimental'noi biologii i meditsiny,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
January 1970,
Laboratornoe delo,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
June 1966,
The American journal of clinical nutrition,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
January 1978,
Biulleten' eksperimental'noi biologii i meditsiny,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
February 1976,
The Journal of applied psychology,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
January 1950,
Acta pharmacologica et toxicologica,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
January 1982,
Sleep,
A Becciolini, and
M Balzi, and
D Cremonini, and
S Cinotti, and
D Fabbrica
June 1992,
Medicine and science in sports and exercise,
