Researchers discover genes linked to homosexualityDecember 8, 2017 - 15:37 AMT PanARMENIAN.Net - Genes linked to homosexuality have been discovered by scientists in the biggest ever study into the genetic basis for sexual orientation, The Telegraph reports. For the first time, researchers looked at the complete genome - a person’s entire DNA code - for more than 1,000 gay men and compared it to genetic data from a similar number of heterosexual males. They discovered that DNA was different for gay and straight men around the genes SLITRK5 and SLITRK6. SLITRK6 is an important gene for brain development, and is particularly active in a region of the brain which includes the hypothalamus. The hypothalamus is crucial for producing the hormones which control sex drive, and previous studies have shown parts of it are up to 34 per cent larger in gay men. The researchers, from North Shore University Health System’s Research Institute, in Illinois, US, also discovered differences in the TSHR gene, which is linked to the thyroid, another area which has previously been associated with sexual orientation. “Because sexuality is an essential part of human life – for individuals and society – it is important to understand the development and expression of human sexual orientation,” said lead author Dr Alan Sanders. “The goal of this study was to search for genetic underpinnings of male sexual orientation, and thus ultimately increase our knowledge of biological mechanisms underlying sexual orientation. “What we have accomplished is a first step for genome wide study on the trait, and we hope that subsequent larger studies will further illuminate its genetic contributions.” Participants in the study were rated for sexual orientation based on their self-reported sexual identity and sexual feelings. Men were asked to provide DNA by blood or saliva samples that were then genotyped and analysed. Although previous studies have pointed to a genetic predisposition for homosexuality, it is the first time researchers have studied the entire genome of individuals and so is the most comprehensive assessment of the genetic basis of sexuality ever undertaken. However British experts said more work was needed before it was possible to identify ‘gay genes’ because the genetic differences could point to other traits shared by the homosexual respondents. The research was published in the journal Scientific Reports. Top stories Authorities said a total of 192 Azerbaijani troops were killed and 511 were wounded during Azerbaijan’s offensive. In 2023, the Azerbaijani government will increase the country’s defense budget by more than 1.1 billion manats ($650 million). The bill, published on Monday, is designed to "eliminate the shortcomings of an unreasonably broad interpretation of the key concept of "compatriot". The earthquake caused a temporary blackout, damaged many buildings and closed a number of rural roads. Partner news | Ucom equips four bus stops in Ijevan with free Wi-Fi Ucom now provides free Wi-Fi coverage in smart bus stops in four communities of Ijevan. Armenia, Russia discuss life extension of Metsamor nuclear plant Issues regarding the extension of life of the 2nd power unit of the Armenian Nuclear Power Plant were discussed in Yerevan. Armenians stage more campaigns against territorial concessions to Azerbaijan Protesters blocked more roads across Armenia on Friday, April 26 in continuing attempts to scuttle territorial concessions to Azerbaijan. Czech-Armenian military cooperation discussed in Yerevan A delegation led by the Director General for the Industrial Cooperation Division of the Ministry of Defence of the Czech Republic visited Armenia. |