Orally administered gossypol has no effect on eight hamster erythrocytic enzymes.

The effectiveness of gossypol as an antifertilizing agent is due to the severe injuries or death that this drug produces on spermatozoa and spermatides. Several in vitro and in vivo studies have shown that spermatozoal lactic and malic dehydrogenases are inhibited by gossypol; and that these are more susceptible than the somatic enzymes. Notwithstanding, the in vivo effects on other somatic enzymes have been poorly analyzed.

Gene frequencies and admixture estimates for ABO, Rh (D), and MN blood groups in persons with mono- and polyphletic surnames in monterrey, N.L., Mexico.

A sample of 3,211 males and females insured by the Instituto Mexicano del Seguro Social (I.M.S.

Frequency and origin of G-6-PD deficiency among icteric newborns in the metropolitan area of Monterrey, Nuevo León, Mexico.

829 icteric newborn males were studied in order to have more information about the frequency of the G-6-PD deficiency and its origin in the population of the Monterrey Metropolitan area (MMA), in northeastern Mexico. For each subject information about the maternal grandparents' birthplace (states of Mexico) was gathered. The newborns were grouped into five geographic areas.

[Frequency of color blindness and glucose-6-phosphate dehydrogenase enzyme deficiency in non-industrialized populations in the state of Nuevo León, México].

In order to know if there would be genetic structural differences among non industrial and industrial populations, two genetic markers were studied: color-blindness (CPC) and glucose-6-phosphate dehydrogenase deficiency (G6PD), in students, males and females that were resident in five non industrial populations in the State of Nuevo Leon. The results were compared with the information for industrial zone from the Monterrey Metropolitan area (AMM). It was found that the frequencies of CPC and G6PD in non industrial populations (2.

[Relative frequency of glucose-6-phosphate dehydrogenase deficiency in jaundiced newborn infants in the metropolitan area of Monterrey, Nuevo León].

In order to estimate the frequency of G6PD deficiency in the icteric population of the Monterrey metropolitan área (MMA), in the state of Nuevo León, there were studied 829 newborn males were studied. It was found that 13 subjects were deficient of this enzyme, that is equivalent to a frequency of 1.57% and when this frequency was compared with the one that was found an a previous study in a random sample of newborn males (0.