Age and sex differences in cerebral glucose consumption measured by pet using (18-F) fluorodeoxyglucose (FDG)
Resting cerebral glucose metabolic rates (CMRglc) were measured in 23 subjects by PET using FDG. Subjects were divided into several groups (mean age +- S.D.) 5 young males (YM) (27 +- 6); 6 young females (YF)(33 +9); 5 elderly males (EM)(73 +- 5); 7 elderly females (EF)(69 +- 7). Additionally, from these groups 4 YM, 3YF, 5EM and 4EF were studied again within 6 weeks under identical conditions. CMRglc in the YF group again was significantly hider than YM (p 0.05). No obvious relationships of CMRglc to the phase of the menstrual cycle was found in this small group. There was a trend (p=0.06) toward a higher CMRglc in YF than EF. These results support the findings of higher CBF in YF versus YM. The differences between the results of Kuhl et al (J. Cereb. and a reduction of CMRglc with age was found in a mixed group of males and females (58and female), and where no age effect was found the males, are also resolved by these findings. The authors suggest that the apparent age effect, in females in this study, is principally a hormonal one.
- Research Organization:
- Mt. Sinai Medical Center, Miami Beach, FL
- OSTI ID:
- 5872825
- Report Number(s):
- CONF-850611-; TRN: 87-039561
- Journal Information:
- J. Nucl. Med.; (United States), Vol. 26:5; Conference: 32. annual meeting of the Society of Nuclear Medicine, Houston, TX, USA, 2 Jun 1985
- Country of Publication:
- United States
- Language:
- English
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59 BASIC BIOLOGICAL SCIENCES
BRAIN
BASAL METABOLISM
POSITRON COMPUTED TOMOGRAPHY
CEREBRAL CORTEX
FLUORODEOXYGLUCOSE
METABOLISM
AGE DEPENDENCE
CEREBELLUM
CEREBRUM
DIAGNOSTIC USES
FLUORINE 18
GLUCOSE
SEX DEPENDENCE
ALDEHYDES
ANTIMETABOLITES
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BODY
CARBOHYDRATES
CENTRAL NERVOUS SYSTEM
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
DRUGS
EMISSION COMPUTED TOMOGRAPHY
FLUORINE ISOTOPES
HEXOSES
HOURS LIVING RADIOISOTOPES
ISOTOPES
LIGHT NUCLEI
MONOSACCHARIDES
NERVOUS SYSTEM
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANS
RADIOISOTOPES
SACCHARIDES
TOMOGRAPHY
USES
550602* - Medicine- External Radiation in Diagnostics- (1980-)
550501 - Metabolism- Tracer Techniques
551001 - Physiological Systems- Tracer Techniques