+ Translate
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Response of cortical and pial arteries to changes of arterial CO2 tension in rats--a morphometric study

Response of cortical and pial arteries to changes of arterial CO2 tension in rats--a morphometric study

Brain Research 189(1): 115-120

ISSN/ISBN: 0006-8993

PMID: 6767523

DOI: 10.1016/0006-8993(80)90011-6

Changes of the internal (d) and external diameter (D) of cerebral arteries in response to the various levels of arterial pCO2 were studied in anesthetized rats, of which brains were frozen in situ with isopentane cooled in liquid nitrogen. The parietal cortex was fixed with osmium tetroxide and stained with toluidine blue for morphometry of the cerebral arteries. In comparison with control animals (pCO2 = 41.2 mm Hg), the d/D ratio in animals with hypercapnia (pCO2 = 69.9 mm Hg) was increased by 11.7% in the pial arteries and 7.9% in the cortical arteries, indicating vasodilatation. In contrast, the d/D ratio in those with hypocapnia (pCO2 = 27.7 mm Hg) was decreased by 6.2% and 13.0%, respectively, indicating vasoconstriction. There was a significant linear correlation existing between the d/D ratio of either pial or cortical arteries and pCO2. It is concluded that the cortical arteries respond to changes of arterial pCO2 in a similar manner to the pial arteries.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 044217722

Download citation: RISBibTeXText

Related references

Carbon dioxide reactivity of cerebral cortical and pial arteries in spontaneously hypertensive and normotensive rats--a morphometric study. Brain Research 412(1): 1-5, 1987

Response of Pial Precapillary Vessels to Changes in Arterial Carbon Dioxide Tension. Circulation Research 28(5): 518-523, 1971

Response of pial precapillary vessels to changes in arterial carbon di oxide tension. Circulation Research 28(5): 518-523, 1971

A morphometric study of the effect of bilateral cervical sympathetic ganglionectomy on the architecture of pial arteries in spontaneously hypertensive and normotensive rats. Acta Physiologica Scandinavica 152(4): 407-418, 1994

Pressure distribution in the pial arterial system of rats based on morphometric data and mathematical models. Journal of Cerebral Blood Flow and Metabolism: Official Journal of the International Society of Cerebral Blood Flow and Metabolism 7(3): 342-355, 1987

Sanguinate's effect on pial arterioles in healthy rats and cerebral oxygen tension after controlled cortical impact. Microvascular Research 107: 83-90, 2016

Reactions of pial vessels to acute arterial hypertension at various levels of arterial pH and carbon dioxide tension. Advances in Neurology 20: 371-380, 1978

Dilation of perforating arteries in rat brain in response to systemic hypotension is more sensitive and pronounced than that of pial arterioles: simultaneous visualization of perforating and cortical vessels by in-vivo microangiography. Microvascular Research 77(2): 230-233, 2009

Nitrous oxide does not alter tension in isolated human pial arteries. Anesthesiology 79(3A): A209, 1993

Influence of initial tension and changes in sensitivity during amine-induced contractions of pial arteries in vitro. Archives Internationales de Pharmacodynamie et de Therapie 208(2): 235-242, 1974

Internal carotid and vertebral arteries of spontaneously hypertensive and normotensive rats. A morphometric study on extracranial, intraosseous and intracranial arterial segments. Acta Pathologica Microbiologica et Immunologica Scandinavica. Section A Pathology 93(4): 153-158, 1985

Cortical ph and pial arterial diameter during seizure. Federation Proceedings 38(3 Part 1): 1194, 1979

Ultrastructure of the intima of human pial arteries in arterial hypertension. Morfologiia 136(5): 50-54, 2009

Mechanism of dilatation of the pial arteries during lowering of the general arterial pressure. Fiziologicheskii Zhurnal SSSR Imeni I. M. Sechenova 57(2): 240-247, 1971

Ultrastructure of distribution sphincters and procortical arteries in the pial arterial system in rabbits. Bulletin of Experimental Biology and Medicine 102(3): 1284-1287, 1986