Mitochondrial quality control in health and disease: mechanisms and therapeutic targets - Nature

Kunda Yang1, Lili Sun2, Yu Cheng1, Kunxiang Liang1, Nixi Huang1, Yunshuang Liu1, Yewenqian Zhang1, Chuangye Liu1 & … Lina Peng2 We’re sharing this article early to provide faster access to peer-reviewed, accepted research. It is citable and carries a permanent DOI. This version is subject to further edits and will be replaced automatically by the final Version of Record. All legal disclaimers apply.

Bioengineer.org news storyFor people living with HIV, modern antiretroviral therapy can suppress the virus to levels below what standard laboratory tests can detect. Yet some patients on long-term treatment experience a curious phenomenon: a single test result showing a small, transient amount of virus in the blood, followed by an immediate return to undetectable levels. These events, known as viral blips, have puzzled clinicians and researchers for years, raising questions about whether they represent harmless statistical noise, brief bursts of viral production from hidden reservoirs, or early warnings of impending treatment failure. A new nationwide Swedish study, published in BMC Infectious Diseases, offers one of the most comprehensive answers to date. Drawing on the Swedish national InfCareHIV cohort, researchers analyzed data from 4,210 treatment-naïve adults who began antiretroviral therapy from 1 January 2007 onward, with follow-up data extracted through 30 September 2020. The median observation time was 5.5 years, with some individuals followed for as long as 13.7 years.

European Medical Journal news storyPeople living with HIV may experience subtle changes in heart muscle function even when conventional measures of cardiac performance remain normal, according to findings from a systematic review and meta-analysis. Researchers identified significantly impaired global longitudinal strain (GLS) among people with HIV compared with HIV-uninfected individuals, despite preserved left ventricular ejection fraction (LVEF) in both groups. The findings suggest that speckle-tracking echocardiography (STE) could provide additional information about early myocardial dysfunction in this population. Read the full news story here.