Factors Influencing Histoplasmin Formation

Factors Influencing Histoplasmin Formation.

Histoplasmin was originally defined by Zarafonetis and Lindberg (1941) as "the antigenic substance or substances of Histoplasma capsulatum" Darling. The term, however, is now used generally to indicate the filtrate derived from the growth of the mycelial phase of Histoplasma in a liquid synthetic medium and capable of producting a positive skin reaction in sensitized animals and man. The histop...

Some factors influencing phosphatidylcholine formation.

Conversion of ethanolamine to choline (l), with methionine serving as the methyl donor (2), has been established in the intact animal. Stetten (1) observed that the labeled nitrogen of ethanolamine-N15 was retained in the choline molecule, and we determined that the carbon chain of ethanolamine is the precursor in vivo of the choline carbon chain (3). Conversion of ethanolamine to choline by in...

Clii. Factors Influencing the Formation of Robison

COMPOUNDS which influence Robison ester formation from glycogen and inorganic phosphate in muscle extract may act either on the first step: glycogen + inorganic phosphate='glucose-l-phosphate (Cori ester)-or on the second step: Cori ester-+hexose-6-phosphate (Robison ester), or on both these steps. Several factors which increase or inhibit Robison ester formation could be shown to act on one or...

Factors influencing cataract formation after Nd:YAG laser peripheral iridotomy.

PURPOSE The benign nature of Nd:YAG laser peripheral iridotomy (LPI) has recently been questioned because of increased cataract formation and other complications. This retrospective study includes 522 consecutive eyes of 275 individuals (group 1) on whom LPI was performed between January 1, 1991, and December 31, 2000, for which at least 5 years of complete follow-up was available. METHODS Pa...

Studies on factors influencing stable bubble formation from lung homogenate.