Effect of temperature on hydraulic conductivity of single capillaries

F. E. Curry

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Paired determinations of the hydraulic conductivity (Lp) of individually perfused capillaries in frog mesentery were measured at 22-25 and 5-8°C. The mean value of the ratio of the hydraulic conductivity at 22-25 to that at 5-8°C was 1.76±0.22 (SE) in 10 capillaries perfused with albumin in the Ringer perfusate and 1.81±0.11 in six capillaries perfused with Ringer alone. The ratio of Lp can be accounted for in terms of a 1.60-fold increase in water viscosity between 22-25 and 5-8°C. The results conform to the hypothesis that capillary wall is invariant with temperature; models of the water pathway that imply a change in the number of pathways or a change in pathway structure with temperature are incompatible with these results. Temperature gradients across the tissue are negligible in these experiments; calculations show that in the presence of temperature gradients, which occur during tissue cooling or rewarming, transcapillary water flows due to thermoosmosis are likely to occur.

Original languageEnglish (US)
JournalAmerican Journal of Physiology - Heart and Circulatory Physiology
Volume9
Issue number1
StatePublished - 1981

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Temperature
Water
Rewarming
Mesentery
Viscosity
Anura
Albumins

ASJC Scopus subject areas

  • Physiology

Cite this

Effect of temperature on hydraulic conductivity of single capillaries. / Curry, F. E.

In: American Journal of Physiology - Heart and Circulatory Physiology, Vol. 9, No. 1, 1981.

Research output: Contribution to journalArticle

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