Efectos mnemónicos maternos prenatales sobre el sexo psíquico humano. Insuficiencia del mecanismo inmunitario: Nueva propuesta desde la tolerancia-rechazo materno-fetal

Abstract

(Rev Méd Chile 2008; 136: 1552-8).

Sexual orientation, handedness, sex ratio and fetomaternal tolerance-rejection

“…I) The dysfunction should be general, not specific, so that mothers of non right-handed individuals should accept right or non-right handed and hetero or homosexual male embryos better than female ones, compared to righthanded mothers who have children with higher SR. The data contradict this prediction; non-right-handed siblings of gays showed a lower SR than siblings of right-handed gays (Blanchard, 2006;Valenzuela, 2008; Table 3). II) Mothers share half of their genome with their son (2/3 for the X chromosome), and heritability of non-right-handedness can with difficulty be over 0.5, thus the probability that a mother of a non-right-handed man is non-right-handed is less than 0.25; the expected immune impairment of the mother cannot appear in more than 25%; 75% of mothers of non-right handed persons should behave as mothers with normal immunity.…”

“…The aim of the present study is: (1) to show that there are sufficient contradictions to conclusively refute the standard version of the FBO hypotheses; (2) to propose a new theory that considers, not only distortions (of SR or others) related to gays, but all the distortions and phenotypes, and to give a comprehensive vision of the human SR, in relation to genetic markers and biotic processes of development, within an evolutionary approach. In a previous article, I presented the contradictions of the FBO hypothesis and a new explanation based on fetomaternal tolerance-rejection mechanisms (Valenzuela, 2008). In the present work, I extend the theory with evidence of the SR of older and younger siblings connecting it to organic evolution.…”

“…After two or more brothers, the probability of being a male or a heterosexual male should decrease to nearly zero (Green, 2000). II) A high SR should not be found in lesbian siblings because female fetuses do not immunize their mother as male fetuses do, but instead, lesbians have the highest sibling SR. III) Heterosexual individuals should not present SR heterogeneities, but they did show the largest heterogeneity and SR distortions in their siblings (Blanchard, 2006;Valenzuela, 2008; this study). IV) SR distortions associated with handedness should only be found in gays, but there were major SR distortions associated with handedness in both hetero and homosexuals.…”

“…The FBO effect appears similar to fetomaternal Rh incompatibility, but here the H-Y antigen could induce anti-male factors in the mother. Around 15% of homosexuality is due to FBO; only related to SR distortions than to sexual orientation (Blanchard and Lippa, 2006, Valenzuela, 2008; among Korean transsexuals, a significant excess of sisters instead of brothers was found (Zucker et al, 2007); the hypothesis of the maternal "antiboy antibody" resulted untenable under new theoretical and data analyses (Whitehead, 2007). Authors seem immune to these refutations and added auxiliary hypotheses to sustain their theory (Blanchard, 2008).…”