Determinants of sexual abstinence and condom use among Central American adolescents.

Unlabelled: Engaging in sexual intercourse early in life and without protection often leads to unplanned pregnancy and sexually transmitted diseases in teens.

Methods: A binary logistical regression analysis was used to identify the risk and protective factors associated with two preventive health behaviors: sexual abstinence and consistent condom use among 6,902 Central American teens receiving web-based adolescent health promotion education from 2004 to 2008.

Results: The average age was 15 years, with ages ranging between 10 and 20 years.

Apical constriction and invagination downstream of the canonical Wnt signaling pathway require Rho1 and Myosin II.

The tumor suppressor Adenomatous polyposis coli (APC) is a negative regulator of Wnt signaling and functions in cytoskeletal organization. Disruption of human APC in colonic epithelia initiates benign polyps that progress to carcinoma following additional mutations. The early events of polyposis are poorly understood, as is the role of canonical Wnt signaling in normal epithelial architecture and morphogenesis.