Saturday, 13 June 2015

Tons more studies!

Heya everybody,

lots of new studies added (I’ll do the upload later), and more to come later, I hope:

  • The chemical bisphenol A has been under suspicion for a while to alter gender-dimorph structures of the brain, since it mimics estrogen. Yurekli, Kutbay and Saygili discuss in a new article (in Endocrine Abstracts, 2015) whether it could cause gender dysphoria.

  • In Leisure/Loisir, 2015, Muchicko, Lepp and Barkley publish a study that finds that transsexuals exercise less than cisgender people; the reasons are less social support and poor self-perception.

  • Sadly, a study done by Klaver, Vlot, et al. (in Endocrine Abstracts, 2015) finds that hormone therapy for transsexuals increases weight 😏. While weight goes up for both male-to-female and female-to-male transsexuals, the percentage of body fat increases for the former and reduces for the latter.

  • Nota, Klaver, et al. find in Endocrine Abstracts in 2015 that prolactin levels in male-to-female transsexuals increase during hormone therapy, whereas they decrease in female-to-male individuals. For male-to-females, final levels are higher than those of cisgender women. The prolactin levels of female-to-males don’t quite reach the levels of cisgender men.

  • A metastudy by Horbach, Brouman, et al. (in The Journal of Sexual Medicine, 2015) tried to compare the results of different surgical techniques for vaginoplasty. They found that penile skin inversion is most common, but bowel vaginoplasty does not seem inferior.

  • Alcón and Molina publish their find in Medwave, 2015, that transsexuals suffer more from body dissatisfaction than a healthy control group, but not quite as bad as cisgender people who are being treated for body dissatisfaction.

  • In a somewhat weird study from Russia by Volkova, Porksheyan and Saida Kanaeva (in Endocrine Abstracts, 2015), gender dysphoria is seen as the causal factor for interrupted menses in a natal female.

  • Davey, Arcelus, et al. observe that self-injury is quite common among transsexuals. The prevalence is 19 %. Published in Health & Social Care in the Community, 2015.

  • In the Handbook of Child Psychology and Developmental Science (2015), prolific researcher Melissa Hines publishes a chapter summarising what we know about the development of gender in humans, including the contribution by sex hormones before and shortly after birth.

  • A Turkish study by Turan, Poyraz and Duran reports a case study (in Eating Behaviors, 2015) about an eating disorder in a transsexual male. The pathology improved with hormonal and surgical treatment.

  • An important and large study with over 1000 participants by Andersen, Zou and Blosnich (Social Science & Medicine, 2015) shows that the inferior health of individuals belonging to sexual minorities can be explained by maltreatment early in life. This further shows how important tolerance and support is, and that working towards a better society is essential.

  • Becker, Nieder, et al. report in Archives of Sexual Behaviour (2015) that transsexual persons suffer from body image problems. No subgroup differences for sexual orientation (FtM and MtF) and Age of Onset (FtM) were found.

  • A British study by Gunn, Goedhart, et al. (in the Archives of Disease in Childhood, 2015) comes to the conclusion that using hormone blockers to stop puberty in transsexual adolescents is effective and well–tolerated.

  • In the International Review for the Sociology of Sport (2015) a study by hargie, Mitchell and Somervill is called ‘People have a knack of making you feel excluded if they catch on to your difference’: Transgender experiences of exclusion in sport.

  • In a dissertation at the University of Cambridge, Miranda L. Abild researches the gender identity development in natally female children with heightened prenatal androgen exposure: Analyses reveal reduced gender typicality and gender contentedness in girls with CAH together with reduced female gender identity and increased cross-sex gendered behaviour. This adds further evidence to the biological origins of gender identity and for a probable cause of gender dysphoria.

  • At the 97th annual meeting of the Endocrine Society in San Diego, 2015, Boh, Turco and Comi presented a study finding that subcutaneous hormone administration for male transsexuals is safe.