Higher Body Mass Index Correlates with Reduced Cerebral Blood Flow
Vascular aging is an important contribution to neurodegeneration. The brain is an energy-hungry organ, and reductions in blood flow with age have a negative impact on brain tissue. These reductions can occur for obvious reasons such as the weakening of the heart in cases of heart failure, but there are other, more subtle processes at work to reduce the delivery of nutrients to the brain, such as the progressive stiffening of blood vessels and reductions in capillary density. Researchers here note that greater excess fat tissue, as measured by body mass index, correlates with reduced blood flow in the brain. It is plausible that this is mediated by the higher levels of chronic inflammation generated in people with larger than needed visceral fat deposits, as inflammation accelerates dysfunction in the vascular system, as well as dysfunction in tissue maintenance in general. As a person's weight goes up, all regions of the brain go down in activity and blood flow, according to a new brain imaging study. One of the largest studies linking obesity with brain dysfunction, scientists analyzed over 35,000 functional neuroimaging scans using single-photon emission computerized tomography from more than 17,000 individuals to measure blood flow and brain activity. Low cerebral blood flow is the primary brain imaging predictor that a person will develop Alzheimer's disease. It is also associated with depression, ADHD, bipolar disorder, schizophrenia, traumatic brain injury, add...
CONCLUSIONS: Immunohistochemistry seems to be a promising option not only in clinical recognition, but also in the selection and monitoring of treatment effects. However, these methods have not yet recommended for routine clinical use. PMID: 33032462 [PubMed - as supplied by publisher]
CONCLUSION: The nurse practitioner workforce offers stability and flexibility in working across multiple clinical settings in primary healthcare. They provide the potential solution to the general practitioner workforce shortage by improving access to primary healthcare and reducing health inequalities. As authorised prescribers able to enrol patients, receive capitation payments and claim general medical services, it is timely to facilitate the expansion of the nurse practitioner workforce in New Zealand. PMID: 33032301 [PubMed - in process]
Authors: Siamashvili M, Davis S Abstract INTRODUCTION: Bromocriptine mesylate quick release (QR) is a dopamine D2 receptor agonist and is the only oral, primarily centrally acting drug that can be used for the treatment of adults with type 2 diabetes. AREAS COVERED: The authors describe current recommendations on the use of bromocriptine mesylate QR. Major efficacy and safety parameters of the late phase trials, including The Cycloset Safety Trial, have been identified and presented. EXPERT OPINION: Efficacy of bromocriptine mesylate QR monotherapy appears to be low but is compensated by favorable safety pr...
Publication date: Available online 9 October 2020Source: Nutrition, Metabolism and Cardiovascular DiseasesAuthor(s): Vanda Craveiro, Elisabete Ramos, Joana Araújo
Publication date: Available online 10 October 2020Source: Brain, Behavior, and ImmunityAuthor(s): Irene Esteban-Cornejo, Chelsea M. Stillman, Maria Rodriguez-Ayllon, Arthur F. Kramer, Charles H. Hillman, Andrés Catena, Kirk I. Erickson, Francisco B. Ortega
Publication date: October 2020Source: Brain, Behavior, and Immunity, Volume 89Author(s): Mario Gennaro Mazza, Rebecca De Lorenzo, Caterina Conte, Sara Poletti, Benedetta Vai, Irene Bollettini, Elisa Maria Teresa Melloni, Roberto Furlan, Fabio Ciceri, Patrizia Rovere-Querini, COVID-19 BioB Outpatient Clinic Study group, Francesco Benedetti
Publication date: October 2020Source: Brain, Behavior, and Immunity, Volume 89Author(s): Xiaoqin Liu, Trine Munk-Olsen, Clara Albiñana, Bjarni J. Vilhjálmsson, Emil M. Pedersen, Vivi Schlünssen, Marie Bækvad-Hansen, Jonas Bybjerg-Grauholm, Merete Nordentoft, Anders D. Børglum, Thomas Werge, David M. Hougaard, Preben B. Mortensen, Esben Agerbo
Publication date: October 2020Source: Brain, Behavior, and Immunity, Volume 89Author(s): Fernando Lopes, Fernando A. Vicentini, Nina L. Cluny, Alexander J. Mathews, Benjamin H. Lee, Wagdi A. Almishri, Lateece Griffin, William Gonçalves, Vanessa Pinho, Derek M. McKay, Simon A. Hirota, Mark G. Swain, Quentin J. Pittman, Keith A. Sharkey
CONCLUSIONS: Individually customized, multicomponent exercise programs lead to improved levels of cognitive function, depression, and quality of life, especially among those who are more frail. PMID: 33029968 [PubMed]