Abstract：
BACKGROUND:Subjects with chronic fatigue syndrome (CFS) frequently report symptoms of subnormal body temperature and low-grade fever. We conducted a study to determine whether CFS subjects manifest any abnormality of core body temperature (CBT) that might help explain their fatigue. METHODS:Continuous 24-hour recordings of CBT measured every 5 min were performed in 7 subjects meeting the Centers for Disease Control definition of CFS. Three additional groups were studied: normal controls, subjects with seasonal allergy, and subjects with major depression. Subjects (n = 7) in each group were age-, sex-, and weight-matched to the CFS group and had normal basal metabolic rates, thyroid function, and 24-hour urinary free cortisol excretions. CBT was measured with an ingestible radio frequency transmitter pill and a belt-worn receiver-logger. Each pill was factory-calibrated to +/- 0.1 degree C and field-calibrated with a water bath calibration prior to use. RESULTS:The 24-hour mean calibration-adjusted CBTs of each group were not significantly different (control: 37.00 +/- 0.17 degrees C; CFS: 37.04 +/- 0.31 degrees C; allergy: 37.15 +/- 0.18 degrees C; depression: 37.16 +/- 0.18 degrees C). Similarly, the mean peak and trough circadian temperatures were not statistically different. The mean 24-hour profile of CBT for each group showed a similar circadian rhythm. In simultaneously collected blood samples, each group showed a similar circadian profile of serum cortisol with a peak occurring at 08:00. CONCLUSIONS:Subjects with CFS have normal CBT despite frequent self-reports of subnormal body temperature and low-grade fever.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Hamilos DL,Nutter D,Gershtenson J,Redmond DP,Clementi JD,Schmaling KB,Make BJ,Jones JFdoi
10.1016/s0006-3223(97)83214-3subject
Has Abstractpub_date
1998-02-15 00:00:00pages
293-302issue
4eissn
0006-3223issn
1873-2402pii
S0006322397832143journal_volume
43pub_type
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