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https://www.readbyqxmd.com/read/28428879/a-systems-biology-approach-to-investigating-the-influence-of-exercise-and-fitness-on-the-composition-of-leukocytes-in-peripheral-blood
#1
Michael P Gustafson, Ara Celi DiCostanzo, Courtney M Wheatley, Chul-Ho Kim, Svetlana Bornschlegl, Dennis A Gastineau, Bruce D Johnson, Allan B Dietz
BACKGROUND: Exercise immunology has become a growing field in the past 20 years, with an emphasis on understanding how different forms of exercise affect immune function. Mechanistic studies are beginning to shed light on how exercise may impair the development of cancer or be used to augment cancer treatment. The beneficial effects of exercise on the immune system may be exploited to improve patient responses to cancer immunotherapy. METHODS: We investigated the effects of acute exercise on the composition of peripheral blood leukocytes over time in a male population of varying fitness...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28356069/broad-induction-of-immunoregulatory-mechanisms-after-a-short-course-of-anti-il-7r%C3%AE-antibodies-in-nod-mice
#2
Cristina Vazquez-Mateo, Justin Collins, Michelle Fleury, Hans Dooms
BACKGROUND: Type 1 diabetes is an autoimmune disease caused by T cell-mediated destruction of the insulin-producing β-cells in the pancreas. Therefore, approaches that effectively halt the pathogenic T cell response are predicted to have preventive or therapeutic benefit for type 1 diabetes patients. We previously demonstrated that long-term blocking of IL-7 signaling, which is critical for the survival and function of T cells, prevented and reversed type 1 diabetes in non-obese diabetic mice...
March 29, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28343398/an-anti-programmed-death-1-antibody-%C3%AE-pd-1-fusion-protein-that-self-assembles-into-a-multivalent-and-functional-%C3%AE-pd-1-nanoparticle
#3
Peng Zhao, Djordje Atanackovic, Shuyun Dong, Hideo Yagita, Xiao He, Mingnan Chen
Cancer immune checkpoint therapy has achieved remarkable clinical successes in various cancers. However, current immune checkpoint inhibitors block the checkpoint of not only the immune cells that are important to cancer therapy but also the immune cells that are irrelevant to the therapy. Such an indiscriminate blockade limits the efficacy and causes the autoimmune toxicity of the therapy. It might be beneficial to use a carrier to target immune checkpoint inhibitors to cancer-reactive immune cells. Here, we explore a method to load the inhibitors into carriers...
April 19, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28289180/beneficial-effects-of-apelin-on-vascular-function-in-patients-with-central-obesity
#4
Francesca Schinzari, Augusto Veneziani, Nadia Mores, Angela Barini, Nicola Di Daniele, Carmine Cardillo, Manfredi Tesauro
Patients with central obesity have impaired insulin-stimulated vasodilation and increased ET-1 (endothelin 1) vasoconstriction, which may contribute to insulin resistance and vascular damage. Apelin enhances insulin sensitivity and glucose disposal but also acts as a nitric oxide (NO)-dependent vasodilator and a counter-regulator of AT1 (angiotensin [Ang] II type 1) receptor-induced vasoconstriction. We, therefore, examined the effects of exogenous (Pyr(1))apelin on NO-mediated vasodilation and Ang II- or ET-1-dependent vasoconstrictor tone in obese patients...
March 13, 2017: Hypertension
https://www.readbyqxmd.com/read/28211040/anti-cd3-treatment-up-regulates-programmed-cell-death-protein-1-expression-on-activated-effector-t-cells-and-severely-impairs-their-inflammatory-capacity
#5
Maja Wallberg, Asha Recino, Jenny Phillips, Duncan Howie, Margaux Vienne, Christopher Paluch, Miyuki Azuma, F Susan Wong, Herman Waldmann, Anne Cooke
T cells play a key role in the pathogenesis of type 1 diabetes, and targeting the CD3 component of the T-cell receptor complex provides one therapeutic approach. Anti-CD3 treatment can reverse overt disease in spontaneously diabetic non-obese diabetic mice, an effect proposed to, at least in part, be caused by a selective depletion of pathogenic cells. We have used a transfer model to further investigate the effects of anti-CD3 treatment on green fluorescent protein (GFP)(+) islet-specific effector T cells in vivo...
February 17, 2017: Immunology
https://www.readbyqxmd.com/read/28207885/the-association-between-body-mass-index-and-mortality-among-asian-peritoneal-dialysis-patients-a-meta-analysis
#6
Jing Liu, Xiaoxi Zeng, Hyokyoung G Hong, Yi Li, Ping Fu
BACKGROUND: Previous studies have revealed that increased body mass index (BMI) is associated with decreased mortality among hemodialysis patients. However, few studies have dealt with the association between BMI and mortality among patients undergoing peritoneal dialysis (PD) and even fewer studies have focused on the Asian PD patients. The reported studies were often non-conclusive and some even yielded contradictory results. This paper, to our best knowledge, registers the first attempt to systematically review the current literature and summarize new results on the association between BMI and mortality among the Asian PD population...
2017: PloS One
https://www.readbyqxmd.com/read/28126541/temporary-removal-pharmacokinetics-of-levonorgestrel-and-ulipristal-acetate-emergency-contraception-in-women-with-normal-and-obese-body-mass-index
#7
Piyapa Praditpan, Angie Hamouie, Cale N Basaraba, Renu Nandakumar, Serge Cremers, Anne R Davis, Carolyn L Westhoff
The publisher regrets that this article has been temporarily removed. A replacement will appear as soon as possible in which the reason for the removal of the article will be specified, or the article will be reinstated. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
January 23, 2017: Contraception
https://www.readbyqxmd.com/read/28121368/pharmacokinetics-and-pharmacodynamics-of-single-doses-of-rivaroxaban-in-obese-patients-before-and-after-bariatric-surgery
#8
Dino Kröll, Guido Stirnimann, Andreas Vogt, Desirée Lin Lee Lai, Yves Michael Borbély, Julia Altmeier, Sabine Schädelin, Daniel Candinas, Lorenzo Alberio, Philipp C Nett
AIMS: Venous thromboembolism is an important cause of postoperative morbidity and mortality in bariatric surgery. Studies of direct oral anticoagulants (DOACs) are not available in this surgical field. The objective of this phase 1 clinical trial was to investigate pharmacokinetic and pharmacodynamic (PK/PD) parameters of rivaroxaban in bariatric patients. METHODS: In this single-centre study, obese patients received single oral doses of rivaroxaban (10 mg) one day before and three days after bariatric surgery...
January 25, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28104106/peritoneal-dialysis-in-class-2-3-obesity-a-single-center-experience
#9
Yougandhar V Akula, Tibor Fülöp, Mehul P Dixit
Extreme obesity may hamper successful peritoneal dialysis (PD) delivery. Among our PD patients, we have identified 15 markedly obese (class 2-3 obesity: body mass index [BMI] ≥35kg/m(2)) and 20 lean (BMI: 20-25kg/m(2)) dialysis patients and reviewed multiple clinical, laboratory and dialysis-related parameters. Extreme outliers of obesity (BMI > 40; 6 subjects) received detailed review. Although weight (P < 0.0001) and BMI (P < 0.0001) differed significantly, weekly Kt/V (obese versus lean: 2.05 ± 0...
January 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28077409/have-health-inequalities-changed-during-childhood-in-the-new-labour-generation-findings-from-the-uk-millennium-cohort-study
#10
Emeline Rougeaux, Steven Hope, Catherine Law, Anna Pearce
OBJECTIVES: To examine how population-level socioeconomic health inequalities developed during childhood, for children born at the turn of the 21st century and who grew up with major initiatives to tackle health inequalities (under the New Labour Government). SETTING: The UK. PARTICIPANTS: Singleton children in the Millennium Cohort Study at ages 3 (n=15 381), 5 (n=15 041), 7 (n=13 681) and 11 (n=13 112) years. PRIMARY OUTCOMES: Relative (prevalence ratios (PR)) and absolute health inequalities (prevalence differences (PD)) were estimated in longitudinal models by socioeconomic circumstances (SEC; using highest maternal academic attainment, ranging from 'no academic qualifications' to 'degree' (baseline))...
January 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/27989296/the-role-of-perceived-discrimination-in-obesity-among-african-americans
#11
Irena Stepanikova, Elizabeth H Baker, Zachary R Simoni, Aowen Zhu, Sarah B Rutland, Mario Sims, Larrell L Wilkinson
INTRODUCTION: African Americans, especially those in the South, suffer a disproportionate burden of obesity and are at high risk for perceived discrimination (PD). This study investigates the association between PD and weight status among African Americans and clarifies the role of perceived stress and health behaviors in this relationship. METHODS: Data came from the Jackson Heart Study, Examination 1 (2000-2004; analyses conducted in 2016 using Stata, version 14)...
January 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27966604/endogenous-programmed-death-ligand-1-restrains-the-development-and-onset-of-sj%C3%B3-gren-s-syndrome-in-non-obese-diabetic-mice
#12
Jing Zhou, Jun-O Jin, Toshihisa Kawai, Qing Yu
Programmed death-ligand 1 (PD-L1) down-modulates various immune responses by engaging the co-inhibitory receptor programmed death-1. Expression of PD-L1 and programmed death-1 is elevated in the salivary glands of patients with Sjögren's syndrome (SS). The objective of this study is to define the role of endogenous PD-L1 in SS pathogenesis in non-obese diabetic (NOD) mouse model of this disease. We inhibited endogenous PD-L1 function by intraperitoneal administration of a blocking antibody to 6 week-old female NOD/ShiLtJ mice repeatedly during a 9-day period...
December 14, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27933445/correlation-of-crevicular-fluid-and-serum-levels-of-retinol-binding-protein-4-and-leptin-in-chronic-periodontitis-and-obesity
#13
Dharmendra Kanoriya, A R Pradeep, A Mallika, Sandeep Singhal, Vibhuti Garg
OBJECTIVE: Retinol-binding protein 4 (RBP4) and leptin are both adipokines and involved in the pathophysiology of different vascular and inflammatory diseases and selectively elevated in patients with obesity. The aim of the present study was to determine and correlate the levels of RBP4 and leptin in gingival crevicular fluid (GCF) and serum in patients with chronic periodontitis (CP) and obesity. MATERIALS AND METHODS: A total of 70 patients with age group 25 to 45 years were divided into four groups based on gingival index (GI), probing depth (PD), clinical attachment level (CAL), body mass index (BMI) and radiographic evidence of bone loss...
December 8, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27820698/obesity-accelerates-t-cell-senescence-in-murine-visceral-adipose-tissue
#14
Kohsuke Shirakawa, Xiaoxiang Yan, Ken Shinmura, Jin Endo, Masaharu Kataoka, Yoshinori Katsumata, Tsunehisa Yamamoto, Atsushi Anzai, Sarasa Isobe, Naohiro Yoshida, Hiroshi Itoh, Ichiro Manabe, Miho Sekai, Yoko Hamazaki, Keiichi Fukuda, Nagahiro Minato, Motoaki Sano
Chronic inflammation in visceral adipose tissue (VAT) precipitates the development of cardiometabolic disorders. Although changes in T cell function associated with visceral obesity are thought to affect chronic VAT inflammation, the specific features of these changes remain elusive. Here, we have determined that a high-fat diet (HFD) caused a preferential increase and accumulation of CD44hiCD62LloCD4+ T cells that constitutively express PD-1 and CD153 in a B cell-dependent manner in VAT. These cells possessed characteristics of cellular senescence and showed a strong activation of Spp1 (encoding osteopontin [OPN]) in VAT...
December 1, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27798703/risk-of-atrial-fibrillation-or-flutter-associated-with-periodontitis-a-nationwide-population-based-cohort-study
#15
Der-Yuan Chen, Ching-Heng Lin, Yi-Ming Chen, Hsin-Hua Chen
OBJECTIVE: To investigate the risk of atrial fibrillation or atrial flutter in patients with periodontitis (PD) in comparison with individuals without PD. METHODS: We used the 1999-2010 Taiwanese National Health Insurance Research Database to identify cases of PD in the year 2000 matching (1:1) with persons without PD during 1999-2000 according to sex and individual age as the control group. Using Cox proportional regression analysis adjusting for potential confounders, including age, sex, and comorbidities at baseline, and average annual number of ambulatory visits and dental scaling frequency during the follow-up period, we estimated hazard ratios (HRs) with 95% confidence intervals (CIs) to examine the risk of atrial fibrillation or flutter in PD patients in comparison with the control group...
2016: PloS One
https://www.readbyqxmd.com/read/27753862/br-02-2-hypertension-management-in-cancer-patients-undergoing-chemotherapy
#16
Naftali Stern
As both the rate of hypertension and cancer rise with age, concomitant hypertension in patients receiving treatment for cancer is very common. Increase in blood pressure during cancer treatment requires careful clinical assessment. Distinction between discontinuation or malabsorption of antihypertensive treatment due to factors such as nausea/vomiting/diarrhea and anti-cancer drug specific effects must be first made. De-novo hypertension during cancer treatment is likely related to anticancer drugs per se. Classical chemotherapeutic agents such as cyclophosphamide, cisplatin and busulfan have been previously linked to rising blood pressure...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27751503/the-role-of-dopamine-in-positive-and-negative-prediction-error-utilization-during-incidental-learning-insights-from-positron-emission-tomography-parkinson-s-disease-and-huntington-s-disease
#17
David Mathar, Leonora Wilkinson, Anna K Holl, Jane Neumann, Lorenz Deserno, Arno Villringer, Marjan Jahanshahi, Annette Horstmann
Incidental learning of appropriate stimulus-response associations is crucial for optimal functioning within our complex environment. Positive and negative prediction errors (PEs) serve as neural teaching signals within distinct ('direct'/'indirect') dopaminergic pathways to update associations and optimize subsequent behavior. Using a computational reinforcement learning model, we assessed learning from positive and negative PEs on a probabilistic task (Weather Prediction Task - WPT) in three populations that allow different inferences on the role of dopamine (DA) signals: (1) Healthy volunteers that repeatedly underwent [(11)C]raclopride Positron Emission Tomography (PET), allowing for assessment of striatal DA release during learning, (2) Parkinson's disease (PD) patients tested both on and off L-DOPA medication, (3) early Huntington's disease (HD) patients, a disease that is associated with hyper-activation of the 'direct' pathway...
September 19, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/27698566/calciphylaxis-in-peritoneal-dialysis-patients-a-single-center-cohort-study
#18
Yanchen Zhang, Kristin M Corapi, Maria Luongo, Ravi Thadhani, Sagar U Nigwekar
BACKGROUND: Calciphylaxis is a rare but devastating condition in end-stage renal disease (ESRD) patients. Most research in the field of calciphylaxis is focused on hemodialysis (HD) patients; however, data on calciphylaxis incidence, risk factors, and mortality in peritoneal dialysis (PD) patients are limited. METHODS: In this cohort study, we examined data from adult patients who initiated PD for ESRD management at our institute's PD unit from January 2001 to December 2015...
2016: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/27680757/association-of-alternative-approaches-to-normalizing-peritoneal-dialysis-clearance-with-mortality-and-technique-failure-a-retrospective-analysis-using-the-united-states-renal-data-system-dialysis-morbidity-and-mortality-study-wave-2
#19
Suzanne M Boyle, Yimei Li, F Perry Wilson, Joel D Glickman, Harold I Feldman
♦ BACKGROUND: Total body water (V) is an imprecise metric for normalization of dialytic urea clearance (Kt). This poses a risk of early mortality/technique failure (TF). We examined differences in the distribution of peritoneal Kt/V when V was calculated with actual weight (AW), ideal weight (IW), and adjusted weight (ADW). We also examined the associations of these Kt/V measurements, Kt/body surface area (BSA), and non-normalized Kt with mortality and TF. ♦ METHODS: This is a retrospective cohort study of 534 incident peritoneal dialysis (PD) patients from the Dialysis Morbidity and Mortality Study Wave 2 linked with United States Renal Data System through 2010...
January 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/27643099/br-02-2-hypertension-management-in-cancer-patients-undergoing-chemotherapy
#20
Naftali Stern
As both the rate of hypertension and cancer rise with age, concomitant hypertension in patients receiving treatment for cancer is very common. Increase in blood pressure during cancer treatment requires careful clinical assessment. Distinction between discontinuation or malabsorption of antihypertensive treatment due to factors such as nausea/vomiting/diarrhea and anti-cancer drug specific effects must be first made. De-novo hypertension during cancer treatment is likely related to anticancer drugs per se. Classical chemotherapeutic agents such as cyclophosphamide, cisplatin and busulfan have been previously linked to rising blood pressure...
September 2016: Journal of Hypertension
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