Issue IndexA searchable index of tables of contents
Find An Issue
Table of contents for
March 20, 2003 Vol. 348 No. 12
- Free Full Text
Melanocortin 4 receptor (MC4R) deficiency is the most common form of monogenic obesity. To examine the clinical spectrum and mode of inheritance, the investigators determined the MC4R nucleotide sequence in 500 probands with severe childhood obesity. Twenty-nine had mutations in MC4R — 23 were heterozygous and 6 were homozygous. Homozygotes were more severely affected than heterozygotes.
- Free Full Text
Mutations in the genes for the melanocortin 4 receptor (MC4R), the leptin receptor, and proopiomelanocortin have been identified as potential causes of monogenic obesity. This study examined phenotypic data and eating behavior in severely obese persons. Binge eating was a characteristic of all subjects with MC4R mutations, though not of carriers of other mutations.
CD40 ligand is released from activated platelets and promotes inflammation and coagulation. In this study of patients with acute coronary syndromes, increased serum levels of soluble CD40 ligand were associated with an increased risk of death or nonfatal myocardial infarction. Increased soluble CD40 ligand levels also predicted a beneficial clinical response to the glycoprotein IIb/IIIa receptor inhibitor abciximab.
- Free Full Text
In the winter of 2002, an outbreak of conjunctivitis affected 698 students at Dartmouth College in New Hampshire, including 22 percent of all first-year students. Risk factors included close contact with an affected student, wearing contact lenses, and visiting or living in a fraternity or sorority house. After the institution of preventive measures and after spring break, the outbreak subsided.
- Free Full Text
- Free Full Text
- Video
Central venous catheters permit the measurement of hemodynamic variables that cannot be measured accurately by noninvasive means. They also allow delivery of medications and nutritional support. More than 15 percent of patients, however, have a serious mechanical, infectious, or thrombotic complication related to the use of a central venous catheter. This review explains strategies for minimizing the frequency of such complications. An accompanying video shows techniques for catheter insertion by the internal jugular and subclavian routes.
The members of the chromogranin–secretogranin family of peptide hormones, biogenic amines, and neurotransmitters are enclosed within vesicles in the neuroendocrine system and a variety of neurons. These granins, the chief of which is chromogranin A, participate in sympathoadrenal activity and serve as markers of neuroendocrine tumors, especially pheochromocytoma.
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text
- Free Full Text





