Genetic effects on cardiovascular responses to cold and mental activity in late adulthood

Dorit Cannelli, Marcia M. Ward, Terry Reed, Clarence E. Grim, Gregory A Harshfield, Richard R. Fabsitz

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The purpose of the present investigation was to ex­amine the genetic contributions to cardiovascular reactivity in an adult cohort of male twins. A total of 47 monozygotic (MZ) twin pairs and 54 dizygotic (DZ) twin pairs, aged 59 to 69 years, were laboratory tested at four sites as part of the third examination of the National Heart, Lung, and Blood Institute Twin Study. Systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) were recorded during two tasks, a mental arithmetic task involving serial subtraction and the cold pressor test. Significant cardiovascular responsivity was ob­served during both tasks as measured by substantial elevations in SBP, DBP, and HR from resting pe­riods to task periods. Heritability estimates were statistically significant for SBP and DBP but not HR levels during pretask baseline periods and during both tasks. Genetic variance was maintained for blood pressure reactivity to the mental arithmetic task after adjustments for baseline and perform­ance. No genetic variance for SBP or DBP reactivity to the cold pressor test was evident.

Original languageEnglish (US)
Pages (from-to)239-244
Number of pages6
JournalAmerican Journal of Hypertension
Volume4
Issue number3
DOIs
StatePublished - Jan 1 1991
Externally publishedYes

Fingerprint

Blood Pressure
Heart Rate
National Heart, Lung, and Blood Institute (U.S.)
Dizygotic Twins
Twin Studies
Monozygotic Twins

Keywords

  • Blood pressure
  • Heart rate
  • Heritability
  • Reactivity
  • Twins

ASJC Scopus subject areas

  • Internal Medicine

Cite this

Genetic effects on cardiovascular responses to cold and mental activity in late adulthood. / Cannelli, Dorit; Ward, Marcia M.; Reed, Terry; Grim, Clarence E.; Harshfield, Gregory A; Fabsitz, Richard R.

In: American Journal of Hypertension, Vol. 4, No. 3, 01.01.1991, p. 239-244.

Research output: Contribution to journalArticle

Cannelli, Dorit ; Ward, Marcia M. ; Reed, Terry ; Grim, Clarence E. ; Harshfield, Gregory A ; Fabsitz, Richard R. / Genetic effects on cardiovascular responses to cold and mental activity in late adulthood. In: American Journal of Hypertension. 1991 ; Vol. 4, No. 3. pp. 239-244.
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