Issue IndexA searchable index of tables of contents
Find An Issue
Table of contents for
July 24, 2003 Vol. 349 No. 4
- Free Full Text
Bone loss increases after menopause, yet bone strength depends on structural characteristics such as bone size. In this study, the bone mass and skeletal structure of the distal radius were evaluated by single-photon absorptiometry in 108 women, all of whom were followed from menopause for a mean of 15 years. During follow-up, the mean bone mineral density decreased and the medullary bone diameter and periosteal diameter increased annually. The bone-strength index decreased.
- Free Full Text
The failure to perform prostate biopsy in all members of a screened population affects the sensitivity and specificity of the measurement of prostate-specific antigen (PSA). Correction for verification bias with the use of a mathematical method revealed that the usual threshold value of 4.1 ng of PSA per milliliter for a recommendation of biopsy misses 82 percent of prostate cancers in men younger than 60 years and 65 percent in older men.
Some patients with aortic stenosis have a bleeding tendency that may result, as this study shows, from an acquired form of von Willebrand syndrome. High shear forces at the stenotic valve change the shape of the von Willebrand protein, resulting in proteolysis, loss of the largest multimers, and reduction in platelet adhesion to the vascular endothelium.
- Free Full Text
- Free Full Text
This review article discusses the ways in which the environment, diet, and genes contribute to the development of prostate cancer. Some dietary components increase the risk of prostate cancer, whereas other seem to be protective. Studies of familial prostate cancer are beginning to reveal genes that may have a role in the disease, but population studies have not yet pinpointed a major genetic factor. Prostatitis may have an important role in initiating the pathway to prostate cancer.
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text






