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Results for Item type : "Article"

Article (11)




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A role for cholesterol synthesized de novo by human umbilical cord
Item Type: Article
Author: 
A, Loganath and
R., Gunasegaram and
K.L., Peh and
P.C.T., Chew and
S.S., Ratnam and
Author: 
Editor: 
Year:  00/12/1990
Abstract:  We have previously shown that the human umbilical cord in-vitro possess the ability to synthesize isocaproic acid and presumbly pregnenolone from cholesterol. Here, we examined the ability of the cord to synthesize cholesterol from acetate. Homogenates of umbilical cord (36-41 weeks gestation)obtained following spontaneous vaginal delivery from uncomplicated pregnancies (age 22-31 years) were incubated with [2-14C] acetate. Using the reverse-isotope dilution procedure, cholesterol was isolated and characterized as [14C] cholesterol acetate. Confirmation of identity of newly synthesized cholesterol was obtained after recrystallisation with added non-radioactive cholesterol acetate as standard. The rate of 14C incorporation is small but definite. The results indicate that the homogenates of human term umbilical cord contain the enzymes responsible for the conversion of [2-14C] acetate to [14C] cholesterol. It is suggested that cholesterol synthesized de novo can serve as a percursor for progesterone synthesis in-vivo.
 
 
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A prospective study of the acceptability of today vaginal contraceptive sponge among Malaysian women
Item Type: Article
Author: 
M.T.M., Ismail and
A.J., Halim and
Arshat, Hamid and
Author: 
Editor: 
Year:  00/06/1987
Abstract:  Fifty volunteers were selected in a two month prospective study to evaluate the acceptability of the Today vaginal sponge contraceptive among Malaysian women. One participant developed allergic reaction to the sponge and was taken off at an early stage of the study. Fourty- nine participants completed one month follow-up.Thirteen subjects discontinued for various reasons which are related and not related to the sponge. The remaining 36 participants completed the study. Few side effects were observed among the sponge users who completed the trial. One subject complained that the Loop of the sponge hurt her husband's penis. Most of the women who are on the sponges claimed that sexual intercourse is no longer messy. Four subjects claimed that the sponges pontentiated sexual feeling to their male partners. The sponge is generally accepted by the study group, which suggest that the general impression 'Asian Women abhor any form of vaginal contraception' is not totally correct. It is suggested that the contraceptive efficacy of the sponge be evaluated among our women in the future.
 
 
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