Mol. Hum. Reprod. Advance Access originally published online on August 31, 2007
Molecular Human Reproduction 2007 13(11):791-796; doi:10.1093/molehr/gam060
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Concentrations of monosaccharides and their amino and alcohol derivatives in human preovulatory follicular fluid
1Department of Gynecology, Medical University of Bialystok, Sklodowskiej 24 A, 15-276 Bialystok, Poland 2Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Sklodowskiej 24 A, 15-276 Bialystok, Poland 3Division of Perinatal Medicine, University of Colorado at Denver and Health Sciences Center, 13243 East 23rd Avenue, Aurora, CO 80045, USA
4 Correspondence address. Tel: +48-85-7468347; Fax: +48-85-7468682; E-mail: jozwikmc{at}interia.pl
The study purpose was to compare sugar and polyol concentrations in preovulatory ovarian follicular fluid (FF) with those in the circulation. Samples of FF and peripheral venous blood were obtained after an overnight fast from 14 women attending an IVF program. High performance liquid chromatography measurements of seven polyols, two aminohexoses and four hexoses were the main outcome measures. Glucose concentrations in FF and plasma were 2781.26 ± 205.64 and 4431.25 ± 65.17 µM, respectively (P < 0.001). Mannose concentration in FF was 38.99 ± 3.33 µM, significantly lower than plasma concentration (55.38 ± 2.29 µM; P < 0.001). A concentration gradient from plasma to FF was also significant for glycerol (99.41 ± 8.47 versus 74.32 ± 6.54 µM; P < 0.002), galactose (31.69 ± 1.58 versus 26.73 ± 1.93 µM; P < 0.01) and galactosamine (11.49 ± 0.69 versus 6.38 ± 0.59 µM; P < 0.001). The plasma-to-FF concentration difference was greatest for glucose (1649.99 ± 204.09 µM). There was a significant correlation between plasma and FF concentrations for galactose and glycerol. This study supports a substantial utilization of glucose by the oocyte/granulosa cells complex, and documents a significant concentration gradient from plasma to FF for glycerol, mannose, galactose and galactosamine. These plasma–FF differences may reflect both utilization of these carbohydrates by the cells of the preovulatory ovarian follicle and/or transport characteristics of these cells.
Key words: monosaccharides/plasma follicular fluid gradient/glucose/human preovulatory follicular fluid/polyol concentrations
Submitted on July 7, 2007; resubmitted on August 15, 2007; accepted on August 20, 2007.
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