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https://www.readbyqxmd.com/read/28214225/a-relay-pathway-between-arginine-and-tryptophan-metabolism-confers-immunosuppressive-properties-on-dendritic-cells
#1
Giada Mondanelli, Roberta Bianchi, Maria Teresa Pallotta, Ciriana Orabona, Elisa Albini, Alberta Iacono, Maria Laura Belladonna, Carmine Vacca, Francesca Fallarino, Antonio Macchiarulo, Stefano Ugel, Vincenzo Bronte, Federica Gevi, Lello Zolla, Auke Verhaar, Maikel Peppelenbosch, Emilia Maria Cristina Mazza, Silvio Bicciato, Yasmina Laouar, Laura Santambrogio, Paolo Puccetti, Claudia Volpi, Ursula Grohmann
Arginase 1 (Arg1) and indoleamine 2,3-dioxygenase 1 (IDO1) are immunoregulatory enzymes catalyzing the degradation of l-arginine and l-tryptophan, respectively, resulting in local amino acid deprivation. In addition, unlike Arg1, IDO1 is also endowed with non-enzymatic signaling activity in dendritic cells (DCs). Despite considerable knowledge of their individual biology, no integrated functions of Arg1 and IDO1 have been reported yet. We found that IDO1 phosphorylation and consequent activation of IDO1 signaling in DCs was strictly dependent on prior expression of Arg1 and Arg1-dependent production of polyamines...
February 13, 2017: Immunity
https://www.readbyqxmd.com/read/28212974/costs-and-outcomes-of-increasing-access-to-bariatric-surgery-cohort-study-and-cost-effectiveness-analysis-using-electronic-health-records
#2
Martin C Gulliford, Judith Charlton, Toby Prevost, Helen Booth, Alison Fildes, Mark Ashworth, Peter Littlejohns, Marcus Reddy, Omar Khan, Caroline Rudisill
OBJECTIVES: To estimate costs and outcomes of increasing access to bariatric surgery in obese adults and in population subgroups of age, sex, deprivation, comorbidity, and obesity category. METHODS: A cohort study was conducted using primary care electronic health records, with linked hospital utilization data, for 3,045 participants who underwent bariatric surgery and 247,537 participants who did not undergo bariatric surgery. Epidemiological analyses informed a probabilistic Markov model to compare bariatric surgery, including equal proportions with adjustable gastric banding, gastric bypass, and sleeve gastrectomy, with standard nonsurgical management of obesity...
January 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28212959/results-from-a-well-being-survey-in-the-north-west-of-england-inequalities-in-eq-5d-derived-quality-adjusted-life-expectancy-are-mainly-driven-by-pain-and-mental-health
#3
Brendan Collins
BACKGROUND: There is a growing body of evidence that once quality-of-life decrements are factored in, health inequalities become more prominent than using life expectancy alone. OBJECTIVES: This study aimed to understand what the drivers were in inequalities in quality-adjusted life expectancy (QALE). METHODS: This study used EuroQol five-dimensional (EQ-5D) questionnaire data from a large survey from the North West of England (N = 11,500), which were combined with population and mortality data from administrative datasets, to calculate estimated QALE by deprivation quintile...
January 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28212424/risk-factors-for-central-nervous-system-tumors-in-children-new-findings-from-a-case-control-study
#4
Rebeca Ramis, Ibon Tamayo-Uria, Diana Gómez-Barroso, Gonzalo López-Abente, Antonio Morales-Piga, Elena Pardo Romaguera, Nuria Aragonés, Javier García-Pérez
BACKGROUND: Central nervous system tumors (CNS) are the most frequent solid tumor in children. Causes of CNS tumors are mainly unknown and only 5% of the cases can be explained by genetic predisposition. We studied the effects of environmental exposure on the incidence of CNS tumors in children by subtype, according to exposure to industrial and/or urban environment, exposure to crops and according to socio-economic status of the child. METHODS: We carried out a population-based case-control study of CNS tumors in Spain, covering 714 incident cases collected from the Spanish Registry of Childhood Tumors (period 1996-2011) and 4284 controls, individually matched by year of birth, sex, and autonomous region of residence...
2017: PloS One
https://www.readbyqxmd.com/read/28211872/rictor-mtorc2-deficiency-enhances-keratinocyte-stress-tolerance-via-mitohormesis
#5
Beatrice Tassone, Stefania Saoncella, Francesco Neri, Ugo Ala, Davide Brusa, Mark A Magnuson, Paolo Provero, Salvatore Oliviero, Chiara Riganti, Enzo Calautti
How metabolic pathways required for epidermal tissue growth and remodeling influence the ability of keratinocytes to survive stressful conditions is still largely unknown. The mechanistic target of rapamycin complex 2 (mTORC2) regulates growth and metabolism of several tissues, but its functions in epidermal cells are poorly defined. Rictor is an adaptor protein essential for mTORC2 activity. To explore the roles of mTORC2 in the epidermis, we have conditionally deleted rictor in mice via K14-Cre-mediated homologous recombination and found that its deficiency causes moderate tissue hypoplasia, reduced keratinocyte proliferation and attenuated hyperplastic response to TPA...
February 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28210999/computational-cognitive-modeling-of-the-temporal-dynamics-of-fatigue-from-sleep-loss
#6
Matthew M Walsh, Glenn Gunzelmann, Hans P A Van Dongen
Computational models have become common tools in psychology. They provide quantitative instantiations of theories that seek to explain the functioning of the human mind. In this paper, we focus on identifying deep theoretical similarities between two very different models. Both models are concerned with how fatigue from sleep loss impacts cognitive processing. The first is based on the diffusion model and posits that fatigue decreases the drift rate of the diffusion process. The second is based on the Adaptive Control of Thought - Rational (ACT-R) cognitive architecture and posits that fatigue decreases the utility of candidate actions leading to microlapses in cognitive processing...
February 16, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28209912/detection-efficacy-of-hybrid-68-ga-psma-ligand-pet-ct-in-prostate-cancer-patients-with-biochemical-recurrence-after-primary-radiation-therapy-defined-by-phoenix-criteria
#7
Ingo Einspieler, Isabel Rauscher, Charlotte Düwel, Markus Krönke, Christoph Rischpler, Gregor Habl, Sabrina Dewes, Armin Ott, Hans-Jürgen Wester, Markus Schwaiger, Tobias Maurer, Matthias Eiber
The aim of this retrospective study was to evaluate the detection rate of Glu-NH-CO-NH-Lys-(Ahx)-[(68)Ga(HBED-CC)] ((68)Ga-PSMA ligand) positron emission tomography/computed tomography (PET/CT) in patients with biochemical recurrent prostate cancer (PC) defined by Phoenix criteria after external beam radiotherapy (EBRT) or brachytherapy as primary treatment. Methods: 118 patients were finally eligible for this retrospective analysis with a median prostate-specific antigen (PSA) of 6.4 ng/mL (range: 2.2-158...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209762/identification-of-genes-in-saccharomyces-cerevisiae-that-are-haploinsufficient-for-overcoming-amino-acid-starvation
#8
Nancy S Bae, Andrew P Seberg, Leslie P Carroll, Mark J Swanson
The yeast Saccharomyces cerevisiae responds to amino acid deprivation by activating a pathway conserved in eukaryotes to overcome the starvation stress. We have screened the entire yeast heterozygous deletion collection to identify strains haploinsufficient for growth in the presence of sulfometuron methyl, which causes starvation for isoleucine and valine. We have discovered that cells devoid of MET15 are sensitive to sulfometuron methyl, and loss of heterozygosity at the MET15 locus can complicate screening the heterozygous deletion collection...
February 16, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28209634/cognitive-decline-in-prostate-cancer-patients-undergoing-adt
#9
Niamh Liana Mundell, Robin M Daly, Helen Macpherson, Steve F Fraser
Androgen deprivation therapy (ADT) is an effective and widely prescribed treatment for prostate cancer (PCa), but it is associated with multiple treatment induced adverse effects that impact on various musculoskeletal and cardiometabolic health outcomes. Emerging research has shown that ADT is also associated with cognitive impairment, which has been linked to a loss of independence, increased falls and fracture risk and greater use of medical services. The aim of this review is to outline the evidence related to the effect of ADT use on cognitive function, and propose a role for exercise training as part of usual care to prevent and/or manage cognitive impairments for PCa survivors on ADT...
February 16, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28209554/when-war-is-better-than-peace-the-post-conflict-realities-of-children-born-of-wartime-rape-in-northern-uganda
#10
Myriam Denov, Atim Angela Lakor
This paper examines the realities and perspectives of a sample of 60 children born of wartime rape within the Lord's Resistance Army (LRA), and currently living in northern Uganda. These children were born to mothers who were abducted by the LRA, held captive for extended periods of time, repeatedly raped and impregnated. The paper explores the multiple challenges that these children face in the post-war period including, rejection, stigma, violence, socio-economic marginalization, and issues of identity and belonging...
February 13, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28209315/impact-of-apoe-genotypes-variations-on-toxoplasma-patients-with-dementia
#11
Raida S Yahya, Soha I Awad, Hatim A El-Baz, Niveen Saudy, Osama A Abdelsalam, Mohamed S Shehab Al-Din
BACKGROUND: Toxoplasma deprives host neuron cells from cholesterol and leads to its ability to potentiate dementia. ApoE intermediates neuronal transmission of cholesterol, which is a key constituent for axonal development, redesigning occasions that are important for education and synaptic arrangement, development of memory and repair of neuron. The aim of this work is to investigate the effect of ApoE genotypes on dementia associated with neurodegeneration in latent Toxoplasma gondii in elderly population...
February 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28208629/effects-of-the-activin-a-follistatin-system-on-myocardial-cell-apoptosis-through-the-endoplasmic-reticulum-stress-pathway-in-heart-failure
#12
Miao Liu, Cuiying Mao, Jiayu Li, Fanglei Han, Ping Yang
BACKGROUND: A previous study suggested that activin A inhibited myocardial cell apoptosis. This study thus aimed to explore the effects of the activin A-follistatin system on myocardial cell apoptosis in heart failure (HF) rats in order to determine whether or not the mechanism operates through the endoplasmic reticulum stress (ERS) pathway. METHODS: Myocardial infarction (MI) by vascular deprivation was used to induce HF. The enzyme-linked immunosorbent assay was used to detect activin A, follistatin and brain natriuretic peptide (BNP) contents in serum...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208524/re-association-of-androgen-deprivation-therapy-with-depression-in-localized-prostate-cancer
#13
David F Penson
No abstract text is available yet for this article.
March 2017: Journal of Urology
https://www.readbyqxmd.com/read/28208175/independent-validation-of-effect-of-hsd3b1-genotype-on-response-to-androgen-deprivation-therapy-in-prostate-cancer
#14
Neeraj Agarwal, Andrew W Hahn, David M Gill, James M Farnham, Austin I Poole, Lisa Cannon-Albright
No abstract text is available yet for this article.
February 16, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28206988/inhibition-of-autophagy-blocks-cathepsins-tbid-mitochondrial-apoptotic-signaling-pathway-via-stabilization-of-lysosomal-membrane-in-ischemic-astrocytes
#15
Xian-Yong Zhou, Yu Luo, Yong-Ming Zhu, Zhi-He Liu, Thomas A Kent, Jia-Guo Rong, Wei Li, Shi-Gang Qiao, Min Li, Yong Ni, Kazumi Ishidoh, Hui-Ling Zhang
Our previous study and others have demonstrated that autophagy is activated in ischemic astrocytes and contributes to astrocytic cell death. However, the mechanisms of ischemia-induced autophagy remain largely unknown. In this study, we established a rat's model of permanent middle cerebral artery occlusion (pMCAO) and an in vitro oxygen and glucose deprivation (OGD) model. Autophagy was inhibited by either pharmacological treatment with 3-methyladenine (3-MA) and wortmannin (Wort) or genetic treatment with knockdown of Atg5 in primary cultured astrocytes and knockout of Atg5 in mouse embryonic fibroblast (MEF) cells, respectively...
February 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28206987/id2-promotes-survival-of-glioblastoma-cells-during-metabolic-stress-by-regulating-mitochondrial-function
#16
Zhonghua Zhang, Gilbert J Rahme, Pranam D Chatterjee, Matthew C Havrda, Mark A Israel
Tumor cells proliferate in cellular environments characterized by a lack of optimal tissue organization resulting oftentimes in compromised cellular metabolism affecting nutrition, respiration, and energetics. The response of tumor cells to adverse environmental conditions is a key feature affecting their pathogenicity. We found that inhibitor of DNA binding 2 (ID2) expression levels significantly correlate with the ability of glioblastoma (GBM)-derived cell lines to survive glucose deprivation. ID2 suppressed mitochondrial oxidative respiration and mitochondrial ATP production by regulating the function of mitochondrial electron transport chain (mETC) complexes, resulting in reduced superoxide and reactive oxygen species (ROS) production from mitochondria...
February 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28204923/language-deprivation-syndrome-a-possible-neurodevelopmental-disorder-with-sociocultural-origins
#17
Wyatte C Hall, Leonard L Levin, Melissa L Anderson
PURPOSE: There is a need to better understand the epidemiological relationship between language development and psychiatric symptomatology. Language development can be particularly impacted by social factors-as seen in the developmental choices made for deaf children, which can create language deprivation. A possible mental health syndrome may be present in deaf patients with severe language deprivation. METHODS: Electronic databases were searched to identify publications focusing on language development and mental health in the deaf population...
February 16, 2017: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/28204918/androgen-deprivation-therapy-and-the-risk-of-parkinsonism-in-men-with-prostate-cancer
#18
James W S Young, Rinku Sutradhar, Jagadish Rangrej, Connie Marras, Neil Fleshner, Shabbir M H Alibhai
PURPOSE: Case reports and anecdotal experiences suggest that some men develop parkinsonism after initiating androgen deprivation therapy (ADT) for the treatment of prostate cancer, possibly due to neurophysiological effects of changes in testosterone and/or estrogen. We hypothesized that ADT would increase the risk of parkinsonism. METHODS: Using linked administrative databases in Ontario, Canada, men age 40 or older with prostate cancer on continuous ADT for at least 6 months or who underwent bilateral orchiectomy (n = 38,931) were matched 1:1 with men with prostate cancer who had never received ADT...
February 15, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28204546/risk-of-heart-disease-in-breast-cancer-patients-receiving-estrogen-deprivation-therapy
#19
Abigail Sindzinski
No abstract text is available yet for this article.
February 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28203483/galanin-protects-from-caspase-8-12-initiated-neuronal-apoptosis-in-the-ischemic-mouse-brain-via-galr1
#20
Yun Li, Zhu Mei, Shuiqiao Liu, Tong Wang, Hui Li, Xiao-Xiao Li, Song Han, Yutao Yang, Junfa Li, Zhi-Qing David Xu
Galanin (GAL) plays key role in many pathophysiological processes, but its role in ischemic stroke remains unclear. Here, the models of 1 h middle cerebral artery occlusion (MCAO)/1-7 d reperfusion (R)-induced ischemic stroke and in vitro cell ischemia of 1 h oxygen-glucose deprivation (OGD)/24 h reoxygenation in primary cultured cortical neurons were used to explore GAL's effects and its underlying mechanisms. The results showed significant increases of GAL protein levels in the peri-infarct region (P) and infarct core (I) within 48 h R of MCAO mice (p<0...
February 2017: Aging and Disease
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