SMC motor proteins extrude DNA asymmetrically and can switch directions.

Structural maintenance of chromosomes (SMC) complexes organize the genome via DNA loop extrusion. Although some SMCs were reported to do so symmetrically, reeling DNA from both sides into the extruded DNA loop simultaneously, others perform loop extrusion asymmetrically toward one direction only. The mechanism underlying this variability remains unclear.

Instagram Versus Reality: Who Are Actually Plastic Surgeons?

Background: Instagram has become one of the most powerful marketing tools available to plastic surgeons because patients have increasingly turned to online resources to find physicians. Within, we review the online presence of self-ascribed plastic surgeons in the United States to identify potential misinformation and dishonest advertising.

Methods: The Inflact database was queried for the search terms: "plastic surgeon/surgery," "plastic and reconstructive surgeon/surgery," "aesthetic surgeon/surgery," and "cosmetic surgeon/surgery.

Occupational Health and Safety Concerns for Hookah Divers in Small-Scale Fisheries in the Gulf of California, Mexico.

Objectives: This study aimed to evaluate the working and health conditions faced by divers in small-scale fisheries in the Midriff Islands Region of the Gulf of California, Mexico.

Methods: The study was conducted in five fishing communities. A semi-structured questionnaire was administered to 113 fishers (~15% of the commercial divers in the region).

Psychological attributes and eating behaviors in 5- to 12-year-old children during periods of stress.

Objective: The objective of this study was to investigate the association between psychological attributes and obesogenic behaviors in children during the period of COVID-19 pandemic-induced stress.

Methods: This observational study collected data from caregivers of 5- to 12-year-old children from three diverse groups assessing sociodemographic, economic, and perceived stress, along with the Strengths and Difficulties Questionnaire (SDQ) and the Family Eating and Activity Habits Questionnaire, revised (FEAHQ-R), in October 2020 and June 2021. The outcome measures were SDQ and FEAHQ-R scores.

Loneliness and social isolation in people with HIV aged ≥50 years. The No One Alone (NOA)-GeSIDA study conducted by the GeSIDA 12021 study group.

Introduction: There is a growing number of people with HIV who are aged 50 years or older, and the prevalence of loneliness and social isolation remains unknown.

Methods: A multicentre study was conducted across 22 GeSIDA centres. A survey was carried out to assess loneliness [UCLA 3-item Loneliness Scale-3 (UCLA-3)] and social isolation [Lubben Social Network Scale-Revised (LSNS-R)], along with sociodemographic aspects, HIV-related factors, comorbidities, tobacco, alcohol and drug consumption, quality of life, anxiety and depression, and stigma.