2002
DOI: 10.1016/s0197-4580(02)00004-0
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Aging and sex influence the anatomy of the rat anterior cingulate cortex

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Cited by 120 publications
(120 citation statements)
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“…In the present study, sex differences were still present in old age, due to the absence of any age related losses in the size of the genu and splenium as well as in total brain weight. This is in contrast to the age-related elimination of sex differences in the dendritic tree in other regions of the rat brain, such as the anterior cingulate cortex and hippocampus (Markham et al, 2005;Markham & Juraska, 2002). In these regions, greater age-related deterioration in males eliminated the sex differences in the dendritic tree.…”
Section: Discussionmentioning
confidence: 65%
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“…In the present study, sex differences were still present in old age, due to the absence of any age related losses in the size of the genu and splenium as well as in total brain weight. This is in contrast to the age-related elimination of sex differences in the dendritic tree in other regions of the rat brain, such as the anterior cingulate cortex and hippocampus (Markham et al, 2005;Markham & Juraska, 2002). In these regions, greater age-related deterioration in males eliminated the sex differences in the dendritic tree.…”
Section: Discussionmentioning
confidence: 65%
“…Both adult animals and retired breeders were handled weekly. Prior to sacrifice, females underwent daily vaginal lavage in order to determine their estrous or estropausal status (as described in Markham & Juraska, 2002). Unlike menopausal women, estropausal rats continue to secrete moderate levels of ovarian hormones in one of two estropausal states (Dudley, 1982;Markham & Juraska, 2002).…”
Section: Methodsmentioning
confidence: 99%
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“…During reproductive senescence, aging female rats undergo a loss of cyclicity but (in contrast to humans) continue to maintain constant, moderate levels of ovarian hormones [26,27]. Around 12-14 months, females enter one of two "estropausal" states; typically, they alternate between them for some months before settling in one or the other and then (if they live long enough) become anestrus.…”
Section: Introductionmentioning
confidence: 99%
“…Around 12-14 months, females enter one of two "estropausal" states; typically, they alternate between them for some months before settling in one or the other and then (if they live long enough) become anestrus. We have shown that persistent diestrus (PD) females have significantly more plasma progesterone than persistent estrus females, whereas there is a trend for plasma estrogen levels to be higher among persistent estrus (PE) females [27]. The differences in hormonal profiles between these states merited their being tracked during experiment 3.…”
Section: Introductionmentioning
confidence: 99%