The LGBT Health & Development Program


Fall 2013 Internship with IMPACT

Posted by IMPACT in Featured, Youth Blog. No Comments

6th August

Want to be a part of IMPACT? You could be our next intern. Apply by August 20th.

2013 Summer Internship with IMPACT

Posted by Michelle in Featured, Youth Blog. No Comments

16th April

We’re looking for exceptional undergraduate and graduate interns this summer!

Young Scientists Shine at the 2012 LGBTQ Health and Wellness Conference!

Posted by IMPACT in Featured, Research Blog. No Comments

28th December

A brief look back at the 2012 LGBTQ Health and Wellness Conference.

What do we know about how LGBT youth use the Internet?

Posted by IMPACT in Allies, Featured, Research Blog. No Comments

24th October

Qualitative and quantitative data on Internet use.

*NEW* I Heart My Sexuality Tumblr!

Posted by Emily in Youth Blog. No Comments

18th July

How do you heart your sexuality?!

The Diversity of Gender & Sexual Orientation Identities of Transgender Individuals

23rd April

Check out our latest video with Laura Kuper to learn more about the recent IMPACT publication, published in the Journal of Sex Research.

Lavender Research Forum: IMPACT Student Wins 1st Place

Posted by Farrin in Research Blog. No Comments

16th April

IMPACT Program graduate student Laura Kuper was awarded first place for her paper in the UIC Lavender Research Forum 2012.

Meet the IMPACT Team

13th December

Meet the IMPACT Team! Learn more about who we are, what we do, and how we do it.

A genomewide scan of male sexual orientation.

3rd February

This is the first report of a full genome scan of sexual orientation in men. A sample of 456 individuals from 146 families with two or more gay brothers was genotyped with 403 microsatellite markers at 10-cM intervals. Given that previously reported evidence of maternal loading of transmission of sexual orientation could indicate epigenetic factors acting on autosomal genes, maximum likelihood estimations (mlod) scores were calculated separated for maternal, paternal, and combined transmission. The highest mlod score was 3.45 at a position near D7S798 in 7q36 with approximately equivalent maternal and paternal contributions. The second highest mlod score of 1.96 was located near D8S505 in 8p12, again with equal maternal and paternal contributions. A maternal origin effect was found near marker D10S217 in 10q26, with a mlod score of 1.81 for maternal meioses and no paternal contribution. We … Read More »

Genetic and environmental influences on pubertal development: Longitudinal data from Finnish twins at ages 11 and 14

3rd February

To study sources of individual differences in pubertal development, the authors fit a sex-limitation common factor model to data reported, at ages 11 and 14 years, by 1,891 twin pairs on items that comprise the Pubertal Development Scale (PDS; A. C. Petersen, L. Crockett, M. Richards, & A. Boxer, 1988). The model divides variation into a general pubertal factor and item-specific variation and, in addition, decomposes it into constituent sources. In both boys and girls, genetic influences made the largest contribution to variance common to PDS items. Genetic and nonshared environmental factors accounted for variation specific to PDS items in boys, whereas for girls, common environmental influences were added for growth spurt and menarcheal status. For both common and item-specific variation, genetic effects were partially sex specific. Subsidiary analyses found accelerated maturation in both boys and girls who … Read More »

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