...D. Joe Millward; Paul J. Pacy © 1995 The Biochemical Society and the Medical Research Society 1995 diurnal cycling fasting feeding indispensable amino acid requirements leucine nitrogen balance protein turnover stable isotopes Clinical Science (1995) 88, 5 9 7 4 6 (Printed...

...Marcelo R. Quevedo; Gill M. Price; David Halliday; Paul J. Pacy; D. Joe Millward 1. The adaptation of the diurnal cycle of nitrogen (N) homoeostasis during a change in protein intake was investigated with diurnal measurements of N and leucine balance and turnover during a reduction from a high...

... equivalent of the leucine oxidation rate was mostly in the range of 10–50% lower than expected from the N excretion rates. This may reflect the timing of the amino acid balance measurements and non-uniform rates of gain and loss throughout the diurnal cycle. 5. We conclude on the basis of both N and amino...

... status. INTRODUCTION In studies designed to examine whole body pro- Key words diurnal cycling. feeding, fasting. ["Nlglycine, phenyldanine. protein turnover. stable isotopes. tyrasine. Abbreviations APE, atoms per cent aces; FT,. free tri-iodo thyronine; GP, generous protein; HP, high protein; IGF-I...