ALTERATION OF THE CIRCADIAN-RHYTHM OF INTACT PARATHYROID-HORMONE FOLLOWING A 96-HOUR FAST

被引:36
作者
FRASER, WD [1 ]
LOGUE, FC [1 ]
CHRISTIE, JP [1 ]
CAMERON, DA [1 ]
OREILLY, DS [1 ]
BEASTALL, GH [1 ]
机构
[1] GLASGOW ROYAL INFIRM,INST BIOCHEM,GLASGOW G4 0SF,SCOTLAND
关键词
D O I
10.1111/j.1365-2265.1994.tb02493.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
OBJECTIVE PTH(1-84) secretion in normal mate subjects follows a circadian rhythm. The control of this rhythm is multifactorial with both neuroendocrine and chemical influences. The aim of this study was to assess the effect of a 96-hour fast on the circadian rhythm of PTH(1-84), serum calcium, phosphate and nephrogenous cAMP (NcAMP), an index of PTH(1-84) bioactivity. DESIGN Blood samples for estimation of all analytes were obtained over a 24-hour period at 30-minute intervals. Urine samples were obtained 4 hourly during the daytime and overnight. Each subject was studied on two occasions after being randomized to either (a) normal hospital diet or (b) a 96-hour fast with water freely available. SUBJECTS Six healthy adult males aged between 28 and 40 years, mean 32 years. MEASUREMENTS PTH(1-84) was measured by an inhouse immunoradiometric assay. Serum calcium, phosphate, albumin, creatinine and urinary creatinine were measured by standard automated techniques. Calcium was adjusted for albumin. Plasma cAMP was estimated by a commercial method and urine cAMP by in-house radioimmunoassay and NcAMP obtained by calculation. Rhythm parameters were analysed by cosinor techniques. RESULTS There were alterations in the circadian rhythms of serum phosphate, PTH(1-84) and NcAMP following a 96-hour fast. Pasting abolished the nocturnal rise in phosphate, PTH(1-84) and NcAMP but had little effect on the pattern of adjusted calcium over a 24-hour period. The mean concentrations of serum phosphate, adjusted calcium and NcAMP decreased significantly following the fast and mean PTH(1-84) increased during day time. CONCLUSIONS Pasting for 96 hours significantly alters the circadian rhythm of PTH(1-84) secretion by lowering the mean calcium concentration and attenuating the circadian rhythm of serum phosphate.
引用
收藏
页码:523 / 528
页数:6
相关论文
共 24 条
[1]   NEPHROGENOUS CYCLIC ADENOSINE-MONOPHOSPHATE AS A PARATHYROID FUNCTION TEST [J].
BROADUS, AE ;
MAHAFFEY, JE ;
BARTTER, FC ;
NEER, RM .
JOURNAL OF CLINICAL INVESTIGATION, 1977, 60 (04) :771-783
[2]   ELEVATED SECRETION AND ACTION OF SERUM PARATHYROID-HORMONE IN YOUNG-ADULTS CONSUMING HIGH PHOSPHORUS, LOW CALCIUM DIETS ASSEMBLED FROM COMMON FOODS [J].
CALVO, MS ;
KUMAR, R ;
HEATH, H .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 1988, 66 (04) :823-829
[3]   CIRCADIAN VARIATION IN IONIZED CALCIUM AND INTACT PARATHYROID-HORMONE - EVIDENCE FOR SEX-DIFFERENCES IN CALCIUM HOMEOSTASIS [J].
CALVO, MS ;
EASTELL, R ;
OFFORD, KP ;
BERGSTRALH, EJ ;
BURRITT, MF .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 1991, 72 (01) :69-76
[4]   PERSISTENTLY ELEVATED PARATHYROID-HORMONE SECRETION AND ACTION IN YOUNG-WOMEN AFTER 4 WEEKS OF INGESTING HIGH PHOSPHORUS, LOW CALCIUM DIETS [J].
CALVO, MS ;
KUMAR, R ;
HEATH, H .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 1990, 70 (05) :1334-1340
[5]  
ELIA M, 1984, CLIN CHIM ACTA, V139, P37, DOI 10.1016/0009-8981(84)90190-6
[6]   PREDICTIVE VALUE OF DERIVED CALCIUM FIGURES BASED ON THE MEASUREMENT OF IONIZED CALCIUM [J].
GARDNER, MD ;
DRYBURGH, FJ ;
FYFFE, JA ;
JENKINS, AS .
ANNALS OF CLINICAL BIOCHEMISTRY, 1981, 18 (MAR) :106-109
[7]   CIRCADIAN-RHYTHM IN SERUM PARATHYROID-HORMONE CONCENTRATION IN HUMAN SUBJECTS - CORRELATION WITH SERUM-CALCIUM, PHOSPHATE, ALBUMIN, AND GROWTH-HORMONE LEVELS [J].
JUBIZ, W ;
TYLER, FH ;
REISS, E ;
CANTERBU.JM .
JOURNAL OF CLINICAL INVESTIGATION, 1972, 51 (08) :2040-&
[8]   EPISODIC FLUCTUATION IN SERUM INTACT PARATHYROID-HORMONE CONCENTRATION IN MEN [J].
KITAMURA, N ;
SHIGENO, C ;
SHIOMI, K ;
LEE, KC ;
OHTA, S ;
SONE, T ;
KATSUSHIMA, S ;
TADAMURA, E ;
KOUSAKA, T ;
YAMAMOTO, I ;
DOKOH, S ;
KONISHI, J .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 1990, 70 (01) :252-263
[9]   PLASMA PARATHYROID-HORMONE AND CALCIUM ARE RELATED TO SLEEP STAGE CYCLES [J].
KRIPKE, DF ;
LAVIE, P ;
PARKER, D ;
HUEY, L ;
DEFTOS, LJ .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 1978, 47 (05) :1021-1027
[10]   RELATIONSHIP OF TOTAL AND IONIZED SERUM-CALCIUM CIRCADIAN VARIATIONS IN NORMAL AND HYPERPARATHYROID SUBJECTS [J].
LOCASCIO, V ;
COMINACINI, L ;
ADAMI, S ;
GALVANINI, G ;
DAVOLI, A ;
SCURO, LA .
HORMONE AND METABOLIC RESEARCH, 1982, 14 (08) :443-443