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XLI. VASCULAR RESPONSES TO (A) HYPERTONIC SOLUTIONS AND (B) WITHDRAWAL OF CEREBROSPINAL FLUID

HENRY S. FORBES, M.D.; GLADYS I. NASON, M.S.

Arch Neurol Psychiatry. 1935;34(3):533-547.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

A. HYPERTONIC SOLUTIONS

The purpose of this paper is to describe some of the vascular changes in the brain following the administration of strongly hypertonic solutions and to compare these changes with those following simple withdrawal of cerebrospinal fluid.

In a previous paper of this series¹ it was reported that blood vessels in the pia constricted after intravenous or intraperitoneal injections of hypertonic solutions. This report was based on few experiments and was of a preliminary character. Recently, with improved technic the earlier work has been repeated and a much larger series of experiments performed. We believe now that the previous conclusions should be modified.

Method.

—Cats anesthetized with amytal (sodium barbiturate) or dial^1a (diallyl barbituric acid and ethyl carbamate) given by intraperitoneal injection were used in these experiments. Observation and measurement of pial vessels were carried out through a cranial window,² and photomicrographs were taken with . . . [Full Text PDF of this Article]

Author Affiliations
BOSTON

From the Department of Neuropathology, Harvard University Medical School.

Footnotes
This research was aided by a grant from the Josiah Macy Jr. Foundation.