A release of local subunit conformational heterogeneity underlies gating in a muscle nicotinic acetylcholine receptor.

Synaptic receptors respond to neurotransmitters by opening an ion channel across the post-synaptic membrane to elicit a cellular response. Here we use recent Torpedo acetylcholine receptor structures and functional measurements to delineate a key feature underlying allosteric communication between the agonist-binding extracellular and channel-gating transmembrane domains. Extensive mutagenesis at this inter-domain interface re-affirms a critical energetically coupled role for the principal α subunit β1-β2 and M2-M3 loops, with agonist binding re-positioning a key β1-β2 glutamate/valine to facilitate the outward motions of a conserved M2-M3 proline to open the channel gate.

Antiracist training programs for mental health professionals: A scoping review.

Racism has been shown to be directly deleterious to the mental health care received by minoritized peoples. In response, some mental health institutions have pledged to provide antiracist mental health care, which includes training mental health care professionals in this approach. This scoping review aimed to synthesize the existing published material on antiracist training programs among mental health care professionals.

Incidence, factors, and disparities related to cancer among Black individuals in Canada: A scoping review.

Background: In Canada, two of five individuals will be diagnosed with cancer in their lifetime and one in four will die from this disease. Given the disparities observed in health research among Black individuals, we conducted a scoping review to analyze the state of cancer research in Canadian Black communities regarding prevalence, incidence, screening, mortality, and related factors to observe advances and identify gaps and disparities.

Methods: A comprehensive search strategy was developed and executed in December 2021 across 10 databases (e.

The global evolution of mental health problems during the COVID-19 pandemic: A systematic review and meta-analysis of longitudinal studies.

Background: The COVID-19 pandemic impacted mental health, but the global evolution of mental health problems during the pandemic is unknown. We conducted a systematic review and meta-analysis of longitudinal studies to evaluate the global evolution of mental health problems during the pandemic.

Methods: To conduct this systematic review, we searched for published articles from APA PsycInfo (Ovid), CINAHL (EBSCOhost), Embase (Ovid), MEDLINE (Ovid), and Web of Science.