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I. Preliminary Clinical Observations

FRANK H. GARDNER, M.D.; JAMES C. PRINGLE, JR., M.D.

Arch Intern Med. 1961;107(6):846-862.

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

Repeated observations have demonstrated that adult men have higher values than women for red blood cell count, hemoglobin, and hematocrit.^1,2 More recently it has been shown that the total red cell volume of the human male exceeds that of the female.

These differences are apparently not caused solely by iron deficiency, pregnancy, or menstrual blood loss.³ Such statistically valid sexual differences, the changes of which are most pronounced during the period of greatest sexual activity,² suggest that erythropoiesis and the elaboration of sex hormones are intimately related. Further correlations of blood volume with lean body mass measurements will be helpful in defining such influences.

These phenomena have also been reported in many species of mammals and in fowl. Animal experimental work has been extensive but difficult to interpret. The removal of many endocrine glands induces an anemia which disappears when the lacking hormone is supplied.⁴ Vollmer . . . [Full Text PDF of this Article]

Author Affiliations
BOSTON

From the Richard C. Curtis Hematology Laboratory, Peter Bent Brigham Hospital, The West Roxbury Veterans Administration Hospital and the Department of Medicine, Harvard Medical School.; Assistant Professor of Medicine, Harvard Medical School, Senior Associate in Medicine, Peter Bent Brigham Hospital, Consultant in Hematology, Veteran's Administration (Dr. Gardner); Research Fellow of the Dazian Foundation 1957-1959; Assistant in Medicine, Peter Bent Brigham Hospital (Dr. Pringle).

Footnotes
Submitted for publication July 1, 1960.

Aided in part by grants from the United States Public Health Service (A-965-C-3, 4, 5), The John A. Hartford Foundation Inc., and the Permanent Charity Fund.

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