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https://www.readbyqxmd.com/read/29045700/prediction-model-of-critical-weight-loss-in-cancer-patients-during-particle-therapy
#1
Zhihong Zhang, Y Zhu, Lijuan Zhang, Ziying Wang, Hongwei Wan
Background and purpose: The objective of this study is to investigate the predictors of critical weight loss in cancer patients receiving particle therapy, and build a prediction model based on its predictive factors. Materials and methods: Patients receiving particle therapy were enroled between June 2015 and June 2016. Body weight was measured at the start and end of particle therapy. Association between critical weight loss (defined as >5%) during particle therapy and patients' demographic, clinical characteristic, pre-therapeutic nutrition risk screening (NRS 2002) and BMI were evaluated by logistic regression and decision tree analysis...
October 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29043426/roles-of-cytosolic-phospholipase-a2%C3%AE-in-reproductive-and-systemic-toxicities-in-2-3-7-8-tetrachlorodibenzo-p-dioxin-exposed-mice
#2
Nozomi Fujisawa, Wataru Yoshioka, Hiroyuki Yanagisawa, Chiharu Tohyama
Exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) induces a variety of toxicities upon binding of TCDD to aryl hydrocarbon receptor. Although this binding upregulates the synthesis of prostaglandins and their related lipid mediators via cytosolic phospholipase A2α (cPLA2α), toxicological significance of this signaling pathway remains elusive. Herein, we investigated the roles of cPLA2α in TCDD toxicities using cPLA2α-null mice. In a first set of experiments, pregnant mice were orally administered TCDD at a dose of 40 μg/kg on gestation day (GD) 12...
October 17, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29042804/weight-loss-medications-in-canada-a-new-frontier-or-a-repeat-of-past-mistakes
#3
Sean Wharton, Jasmine Lee, Rebecca Ag Christensen
Current methods for the treatment of excess weight can involve healthy behavior changes, pharmacotherapy, and surgical interventions. Many individuals are able to lose some degree of weight through behavioral changes; however, they are often unable to maintain their weight loss long-term. This is in part due to physiological processes that cannot be addressed through behavioral changes alone. Bariatric surgery, which is the most successful treatment for excess weight to date, does result in physiological changes that can help with weight loss and weight maintenance...
2017: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
https://www.readbyqxmd.com/read/29040540/new-debate-is-it-time-for-infertility-weight-loss-programmes-to-be-couple-based
#4
Damian Best, Alison Avenell, Siladitya Bhattacharya, Gertraud Stadler
With obesity on the rise in the general population, it has also become more prevalent among people of reproductive age. Weight loss has shown benefits in overweight women and men experiencing fertility problems. However, the existing weight-loss interventions for individuals with infertility are associated with high drop-out rates and limited success. In this article, we argue for the development of weight-loss programmes targeting couples, as couples are routinely seen in fertility clinics, rather than individuals...
October 12, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29035364/sympathetic-neuron-associated-macrophages-contribute-to-obesity-by-importing-and-metabolizing-norepinephrine
#5
Roksana M Pirzgalska, Elsa Seixas, Jason S Seidman, Verena M Link, Noelia Martínez Sánchez, Inês Mahú, Raquel Mendes, Vitka Gres, Nadiya Kubasova, Imogen Morris, Bernardo A Arús, Chelsea M Larabee, Miguel Vasques, Francisco Tortosa, Ana L Sousa, Sathyavathy Anandan, Erin Tranfield, Maureen K Hahn, Matteo Iannacone, Nathanael J Spann, Christopher K Glass, Ana I Domingos
The cellular mechanism(s) linking macrophages to norepinephrine (NE)-mediated regulation of thermogenesis have been a topic of debate. Here we identify sympathetic neuron-associated macrophages (SAMs) as a population of cells that mediate clearance of NE via expression of solute carrier family 6 member 2 (SLC6A2), an NE transporter, and monoamine oxidase A (MAOA), a degradation enzyme. Optogenetic activation of the sympathetic nervous system (SNS) upregulates NE uptake by SAMs and shifts the SAM profile to a more proinflammatory state...
October 9, 2017: Nature Medicine
https://www.readbyqxmd.com/read/29035279/cannabis-in-fat-high-hopes-to-treat-obesity
#6
Melody N Hawkins, Tamas L Horvath
Cannabinoid receptor type-1 (CB1s) is known to have a substantial impact on the regulation of energy metabolism via central and peripheral mechanisms. In this issue of the JCI, Ruiz de Azua and colleagues provide important insights into the regulation of adipocyte physiology by CB1. Mice with adipocyte-specific deletion of the CB1-encoding gene had an overall improved metabolic profile in addition to reduced body weight and total adiposity. These changes were associated with an increase in sympathetic tone of the adipose tissue and expansion of activated macrophages, both of which occurred prior to changes in body weight, lending support to a causal relationship between loss of CB1 in adipocytes and systemic metabolic changes...
October 16, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29035033/cross-linking-derived-synthesis-of-porous-coxniy-c-nanocomposites-for-excellent-electromagnetic-behaviors
#7
Bin Quan, Xiaohui Liang, Guangbin Ji, Yanan Zhang, Guoyue Xu, Youwei Du
The magnet/dielectric composites with tunable structure and composition have drawn much attention because of their particular merits in magnetoelectric properties compared with the sole dielectric or magnetic composites. In addition, porous materials at the nanoscale can satisfy the growing requirements in many industries. Therefore, constructing porous metal alloy/carbon nanocomposites is to be an admirable option. Unfortunately, traditional synthesis methods involve multi-step routes and complicated insert-and-remove templates approaches...
October 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29034459/amelioration-of-autoimmunity-with-an-inhibitor-selectively-targeting-all-active-centers-of-the-immunoproteasome
#8
Michael Basler, Elmer Maurits, Gerjan de Bruin, Julia Koerner, Herman S Overkleeft, Marcus Groettrup
BACKGROUND AND PURPOSE: MECL-1 (β2i), LMP2 (β1i), and LMP7 (β5i) are the proteolytically active subunits of the immunoproteasome, a special type of proteasome mainly expressed in hematopoietic cells. Targeting LMP7 has been shown to be therapeutically effective in pre-clinical models of autoimmune diseases. In this study, a recently described inhibitor of the immunoproteasome LU-005i was investigated with respect to selectivity and biological activity. EXPERIMENTAL APPROACH: The specificity of LU-005i and other immunoproteasome selective inhibitors was characterized using fluorogenic peptide substrates...
October 15, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29031712/mitochondrial-uncoupling-in-the-melanocortin-system-differentially-regulates-npy-and-pomc-neurons-to-promote-weight-loss
#9
Natalie Jane Michael, Stephanie Elise Simonds, Marco van den Top, Michael Alexander Cowley, David Spanswick
OBJECTIVE: The mitochondrial uncoupling agent 2,4-dinitrophenol (DNP), historically used as a treatment for obesity, is known to cross the blood-brain-barrier, but its effects on central neural circuits controlling body weight are largely unknown. As hypothalamic melanocortin neuropeptide Y/agouti-related protein (NPY/AgRP) and pro-opiomelanocortin (POMC) neurons represent key central regulators of food intake and energy expenditure we investigated the effects of DNP on these neurons, food intake and energy expenditure...
October 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29031711/lorcaserin-improves-glycemic-control-via-a-melanocortin-neurocircuit
#10
Luke K Burke, Emmanuel Ogunnowo-Bada, Teodora Georgescu, Claudia Cristiano, Pablo B Martinez de Morentin, Lourdes Valencia Torres, Giuseppe D'Agostino, Christine Riches, Nicholas Heeley, Yue Ruan, Marcelo Rubinstein, Malcolm J Low, Martin G Myers, Justin J Rochford, Mark L Evans, Lora K Heisler
OBJECTIVE: The increasing prevalence of type 2 diabetes (T2D) and associated morbidity and mortality emphasizes the need for a more complete understanding of the mechanisms mediating glucose homeostasis to accelerate the identification of new medications. Recent reports indicate that the obesity medication lorcaserin, a 5-hydroxytryptamine (5-HT, serotonin) 2C receptor (5-HT2CR) agonist, improves glycemic control in association with weight loss in obese patients with T2D. Here we evaluate whether lorcaserin has an effect on glycemia without body weight loss and how this effect is achieved...
October 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29027993/current-pharmacotherapy-for-obesity
#11
REVIEW
Gitanjali Srivastava, Caroline M Apovian
More than one-third of adults in the USA have obesity, which causes, exacerbates or adversely impacts numerous medical comorbidities, including diabetes mellitus and cardiovascular disease. Despite intensive lifestyle modifications, the disease severity warrants further aggressive intervention, including pharmacotherapy, medical devices and bariatric surgery. Noninvasive anti-obesity drugs have thus now resurfaced as targeted adjunctive therapeutic approaches to intensive lifestyle intervention, bridging the gap between lifestyle and bariatric surgery...
October 13, 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/29026190/growth-hormone-secretagogues-hexarelin-and-jmv2894-protect-skeletal-muscle-from-mitochondrial-damages-in-a-rat-model-of-cisplatin-induced-cachexia
#12
Giuseppe Sirago, Elena Conte, Flavio Fracasso, Antonella Cormio, Jean-Alain Fehrentz, Jean Martinez, Clara Musicco, Giulia Maria Camerino, Adriano Fonzino, Laura Rizzi, Antonio Torsello, Angela Maria Serena Lezza, Antonella Liantonio, Palmiro Cantatore, Vito Pesce
Chemotherapy can cause cachexia, which consists of weight loss associated with muscle atrophy. The exact mechanisms underlying this skeletal muscle toxicity are largely unknown and co-therapies to attenuate chemotherapy-induced side effects are lacking. By using a rat model of cisplatin-induced cachexia, we here characterized the mitochondrial homeostasis in tibialis anterior cachectic muscle and evaluated the potential beneficial effects of the growth hormone secretagogues (GHS) hexarelin and JMV2894 in this setting...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29024553/obesity-risk-factors-complications-and-strategies-for-sustainable-long-term-weight-management
#13
Sharon M Fruh
BACKGROUND AND PURPOSE: The aims of this article are to review the effects of obesity on health and well-being and the evidence indicating they can be ameliorated by weight loss, and consider weight-management strategies that may help patients achieve and maintain weight loss. METHODS: Narrative review based on literature searches of PubMed up to May 2016 with no date limits imposed. Search included terms such as "obesity," "overweight," "weight loss," "comorbidity," "diabetes," cardiovascular," "cancer," "depression," "management," and "intervention...
October 2017: Journal of the American Association of Nurse Practitioners
https://www.readbyqxmd.com/read/29022746/achieving-the-composite-endpoint-of-hba1c-body-weight-and-systolic-blood-pressure-reduction-with-canagliflozin-in-patients-with-type-2-diabetes
#14
Katherine Merton, Michael J Davies, Ujjwala Vijapurkar, Doreen Inman, Gary Meininger
OBJECTIVE: In addition to achieving glycemic control, weight loss and blood pressure (BP) reduction are important components of type 2 diabetes mellitus (T2DM) management, as many patients with T2DM are overweight/obese and/or have hypertension. Canagliflozin, an SGLT2 inhibitor, has demonstrated improvements in HbA1c, body weight (BW), and systolic BP across a broad range of patients with T2DM. This analysis evaluated achievement of composite endpoints of HbA1c, BW, and systolic BP targets with canagliflozin versus placebo...
October 12, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29022218/an-examination-of-the-mechanisms-and-personality-traits-underlying-food-addiction-among-individuals-with-severe-obesity-awaiting-bariatric-surgery
#15
Anne-Sophie Ouellette, Christopher Rodrigue, Simone Lemieux, André Tchernof, Laurent Biertho, Catherine Bégin
PURPOSE: The aetiology underlying addiction has often been investigated to shed more light on the factors contributing to the development and maintenance of various disorders. In the field of addictive eating behaviours, data on the aetiological factors related to food addiction (FA) in the bariatric context remain scarce. The present study aimed to explore mechanisms and variables underlying FA among individuals suffering from severe obesity and awaiting bariatric surgery. METHODS: Participants (N = 146) were recruited at the Quebec Heart and Lung Institute during their pre-operative visit and were invited to complete questionnaires...
October 11, 2017: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/29021590/influence-of-adaptive-capacity-on-the-outcome-of-climate-change-vulnerability-assessment
#16
Benjamin Y Ofori, Adam J Stow, John B Baumgartner, Linda J Beaumont
Climate change vulnerability assessment (CCVA) has become a mainstay conservation decision support tool. CCVAs are recommended to incorporate three elements of vulnerability - exposure, sensitivity and adaptive capacity - yet, lack of data frequently leads to the latter being excluded. Further, weighted or unweighted scoring schemes, based on expert opinion, may be applied. Comparisons of these approaches are rare. In a CCVA for 17 Australian lizard species, we show that membership within three vulnerability categories (low, medium and high) generally remained similar regardless of the framework or scoring scheme...
October 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29017480/longitudinal-assessment-of-daily-activity-patterns-on-weight-change-after-involuntary-job-loss-the-adapt-study-protocol
#17
Patricia L Haynes, Graciela E Silva, George W Howe, Cynthia A Thomson, Emily A Butler, Stuart F Quan, Duane Sherrill, Molly Scanlon, Darlynn M Rojo-Wissar, Devan N Gengler, David A Glickenstein
BACKGROUND: The World Health Organization has identified obesity as one of the most visible and neglected public health problems worldwide. Meta-analytic studies suggest that insufficient sleep increases the risk of developing obesity and related serious medical conditions. Unfortunately, the nationwide average sleep duration has steadily declined over the last two decades with 25% of U.S. adults reporting insufficient sleep. Stress is also an important indirect factor in obesity, and chronic stress and laboratory-induced stress negatively impact sleep...
October 10, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29016701/modifying-alcohol-consumption-to-reduce-obesity-a-randomized-controlled-feasibility-study-of-a-complex-community-based-intervention-for-men
#18
Linda Irvine, Iain K Crombie, Kathryn B Cunningham, Brian Williams, Falko F Sniehotta, John Norrie, Ambrose J Melson, Claire Jones, Peter Rice, Peter W Slane, Marcus Achison, Andrew McKenzie, Elena D Dimova, Sheila Allan
Objectives: Being obese and drinking more than 14 units of alcohol per week places men at very high risk of developing liver disease. This study assessed the feasibility of a trial to reduce alcohol consumption. It tested the recruitment strategy, engagement with the intervention, retention and study acceptability. Methods: Men aged 35-64 years who drank >21 units of alcohol per week and had a BMI > 30 were recruited by two methods: from GP patient registers and by community outreach...
September 18, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28991472/the-discovery-of-a-dual-ttk-protein-kinase-cdc2-like-kinase-clk2-inhibitor-for-the-treatment-of-triple-negative-breast-cancer-initiated-from-a-phenotypic-screen
#19
Jennifer R Riggs, Mark Nagy, Jan Elsner, Paul Erdman, Dan Cashion, Dale Robinson, Roy Harris, Dehua Huang, Lida Tehrani, Gordafaried Deyanat-Yazdi, Rama Krishna Narla, Xiaohui Peng, Tam Tran, Leo Barnes, Terra Miller, Jason Katz, Yang Tang, Ming Chen, Mehran F Moghaddam, Sogole Bahmanyar, Barbra Pagarigan, Silvia L Delker, Laurie LeBrun, Philip Paul Chamberlain, Andrew Calabrese, Stacie S Canan, Katerina Leftheris, Dan Zhu, John F Boylan
Triple negative breast cancer (TNBC) remains a serious unmet medical need with discouragingly high relapse rates. We report here the synthesis and structure-activity relationship (SAR) of a novel series of 2,4,5-trisubstituted-7H-pyrrolo[2,3-d]pyrimidines with potent activity against TNBC tumor cell lines. These compounds were discovered from a TNBC phenotypic screen and possess a unique dual inhibition profile targeting TTK (mitotic exit) and CLK2 (mRNA splicing). Design and optimization, driven with a TNBC tumor cell assay, identified potent and selective compounds with favorable in vitro and in vivo activity profiles and good iv PK properties...
October 9, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28991026/frailty-is-strongly-associated-with-increased-risk-of-recurrent-falls-among-older-hiv-infected-adults
#20
Katherine Tassiopoulos, Mona Abdo, Kunling Wu, Susan L Koletar, Frank J Palella, Robert Kalayjian, Babafemi Taiwo, Kristine M Erlandson
OBJECTIVE: Both frailty and falls occur at earlier-than-expected ages among HIV-infected individuals, but the contribution of frailty-to-fall risk in this population is not well understood. We examined this association among participants enrolled in AIDS Clinical Trials Group (ACTG) A5322. DESIGN: A prospective, multicenter cohort study of HIV-infected men and women aged at least 40 years. METHODS: Frailty assessment included a 4-m walk, grip strength, and self-reported weight loss, exhaustion, and low physical activity...
October 23, 2017: AIDS
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