About Us
What We Do
Scholarship
Research
Resources
Get Involved
Donation
Our Legacy
Vision & Mission
Our Team
Our Offices
Our Finances
Blogs
Brand Guidelines
Media Center
Become A Partner
Become A YRG Ally
Internships
Career
Publications
AIDS and Behavior, 20, pp.304-316
Diverse rates of depression among men who have sex with men (MSM) across India: insights from a multi-site mixed method study
Tomori, C., McFall, A.M., Srikrishnan, A.K., Mehta, S.H., Solomon, S.S., Anand, S., Vasudevan, C.K., Solomon, S. and Celentano, D.D.
The study investigates the prevalence of depression and its correlates among 11,992 men who have sex with men (MSM) in India, revealing an overall depression rate of 11% with significant variations across different subgroups. Key factors associated with higher odds of depression include identifying as a kothi (feminine sexual identity), disclosing MSM status and HIV status to others, and substance use. The qualitative analysis highlights the severe social repercussions of such disclosures, particularly regarding suicidal thoughts. The findings emphasize the necessity for combination prevention interventions that integrate mental health services to address issues related to disclosure, suicidality, and substance use among MSM, thereby improving overall health outcomes in this marginalized population.
The Pediatric infectious disease journal, 35(2), pp.201-204
Final height and associated factors in perinatally HIV-infected Asian adolescents
Bunupuradah, T., Kariminia, A., Aurpibul, L., Chokephaibulkit, K., Hansudewechakul, R., Lumbiganon, P., Vonthanak, S., Vibol, U., Saghayam, S., Nallusamy, R. and Van Nguyen, L.
This study analyzed the final height of 273 perinatally HIV-infected Asian adolescents aged over 18 years at their last clinic visit. The findings showed that 30% of participants were stunted when assessed using the World Health Organization (WHO) child growth reference, while 19% were stunted according to the Thai child growth reference. Notably, half of those who were stunted at the time of antiretroviral therapy initiation remained stunted over time. The analysis identified that male sex and a low baseline height-for-age Z score (below -1.0) were significantly associated with a low final height Z score, highlighting the importance of early growth monitoring and intervention in this population.
Journal of virology, 90(7), pp.3446-3457
Conformational epitope-specific broadly neutralizing plasma antibodies obtained from an HIV-1 clade C-infected elite neutralizer mediate autologous virus escape through mutations in the V1 loop
Patil, S., Kumar, R., Deshpande, S., Samal, S., Shrivastava, T., Boliar, S., Bansal, M., Chaudhary, N.K., Srikrishnan, A.K., Murugavel, K.G. and Solomon, S.
This study investigates the neutralizing antibody response in an Indian HIV-1 clade C-infected elite neutralizer and its ability to target a broad spectrum of HIV-1 pseudoviruses from different clades. The plasma from this individual demonstrated potent cross-neutralization (93% neutralization of 57 pseudoviruses), but mapping studies revealed that the antibodies did not recognize known broadly neutralizing antibody (BCN) epitopes such as the CD4 binding site, gp41 membrane-proximal external region, or specific glycans in the V1-V3 region. The neutralization was significantly reduced when the plasma was depleted using trimeric Env, suggesting that the plasma mainly targets epitopes on cleaved trimeric Env. Notably, mutation of residues in the V1 loop of the autologous circulating Envs was associated with neutralization resistance, highlighting how the virus can escape immune pressure. These findings provide new insights into epitope recognition by elite neutralizers and underscore the potential for trimeric Env as a target for HIV-1 vaccine development, particularly in clade C-infected populations, where neutralization escape may occur through V1 loop mutations.
Viral Immunology, 29(10), pp.572-582
Cross-reactive potential of HIV-1 subtype C-infected Indian individuals against multiple HIV-1 potential T cell epitope Gag variants
Negi, N., Vajpayee, M., Singh, R., Sharma, A., Murugavel, K.G., Ranga, U., Thakar, M., Sreenivas, V. and Das, B.K.
This study highlights the importance of expanding T cell coverage in the development of vaccines aimed at providing broader protection against the diverse strains of HIV-1. Researchers used a set of 320 potential T cell epitope (PTE) peptides derived from HIV-1 Gag to assess immune responses in 34 HIV-1 seropositive individuals from India. The results revealed that the dominant T cell responses were directed towards the p24 subunit of the Gag protein, with 77% of participants responding to p24 peptides. Additionally, responses were also observed against peptides from p17 and p15 Gag subunits, with substantial variability in the magnitude and breadth of these immune responses. The study identified a specific PTE peptide sequence (Gag271→285NKIVRMYSPVSILDI) within p24 Gag that was recognized by the majority of participants, indicating its potential as a key target for HIV vaccine development. These findings underscore the ability of HIV-infected individuals to recognize multiple peptide variants, suggesting that T cell-based vaccines should target diverse epitope sequences to improve coverage against circulating viral strains.
International journal of STD & AIDS, 27(7), pp.543-553
Prevalence and concordance of human papillomavirus infection at multiple anatomic sites among HIV-infected women from Chennai, India
Menezes, L.J., Poongulali, S., Tommasino, M., Lin, H.Y., Kumarasamy, N., Fisher, K.J., Saravanan, S., Gheit, T., Ezhilarasi, C., Jeeva, A. and Lu, B.
The study evaluates the prevalence and distribution of human papillomavirus (HPV) genotypes among HIV-infected women in Chennai, India, focusing on three anatomical sites: the cervix, anus, and oropharynx. It finds that oncogenic HPV prevalence is similar between the cervix (52.0%) and anus (52.2%), while significantly lower in the oropharynx (13.2%). Notably, 78% of women with cervical HPV infections had the same type in the anus, indicating a potential for concurrent infections. The research highlights the need for regular cervical screening among HIV-infected women, regardless of their CD4+ count or antiretroviral therapy status, and calls for further investigation into the natural history of anal HPV infections in this population.
Load More