[Ocular trauma in an urban Cameroonian setting: A study of 332 cases evaluated according to the Ocular Trauma Score].

Purpose: To determine the epidemiologic and clinical characteristics of ocular trauma after evaluation with the ocular trauma score at the Army Teaching Hospital in Yaoundé, Cameroon.

Patients And Methods: A descriptive and retrospective monocentric hospital study was carried out from January 2008 to December 2010. Our sample included all patients with ocular trauma.

Agar human T cell colony growth promoted by a B + null cell-derived lymphokine distinct from IL 2.

Human T cell agar colonies can be grown under PHA stimulation from either mature T cells or their E rosette-negative (E-), OKT3- peripheral blood and bone marrow precursors. Colonies comprise a majority of mature E+, OKT3+ cells and a minor (5 to 10%) population of immature E-, T3-, T8-, T4-, DR+, T10+, RFB1+ cells, which upon replating in subculture, can generate secondary colonies of OKT3+, E+, OKT4+, OKT8+ cells. Secondary colony formation can serve as a test for growth requirement of colony precursors, because it depends on the presence of both PHA and a colony-promoting activity (CPA) recovered in PHA-stimulated B + null or T + adherent cell supernatants.