Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1989-4-12
pubmed:abstractText
To determine whether the dawn phenomenon occurs in healthy elderly subjects, we compared glucose and insulin levels as well as glucose production rates in 10 young nondiabetic men (mean age 26 +/- 3 years) and 10 old nondiabetic men (mean age 69 +/- 3 years) between 0500 to 0800. Young subjects demonstrated a modest but significant rise in plasma glucose level (89 +/- 1 mg/dl to 92 +/- 1 mg/dl, p less than .05) and glucose production rate (1.7 +/- 0.1 mg/kg/min to 1.9 +/- 0.2 mg/kg/min, p less than .05) between 0540 and 0800. No rise was detected in the plasma glucose or glucose production rate in older subjects as a group, between these times. However, a few elderly subjects did display a dawn glucose rise. Changes in plasma insulin levels were not significant for either young or old subjects. Older subjects had significantly lower mean peak growth hormone levels during the night than young subjects (6.7 +/- 1.3 vs 10.1 +/- 1.6 ng/ml, p less than .05). These results demonstrate a modest rise in plasma glucose levels and glucose production rate in healthy young subjects consistent with previous reports of the dawn phenomenon. This modest early morning glucose rise is absent in most otherwise healthy older subjects.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-1422
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
M57-61
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Absence of the dawn glucose rise in nondiabetic men compared by age.
pubmed:affiliation
GRECC, Veterans Administration Medical Center, Sepulveda, California.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't