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https://www.readbyqxmd.com/read/29783258/-theoretical-grounds-of-a-structural-and-functional-model-for-quality-assurance-of-radiation-diagnostics-under-conditions-of-development-of-the-modern-health-care-system-in-ukraine
#1
Oleg A Korop, Sergiy V Lenskykh
OBJECTIVE: Introduction: Modern changes in the health care system of Ukraine are focused on financial support in providing medical and diagnostic care to the population and are based on deep and consistent structural and functional transformations. They are aimed at providing adequate quality care, which is the main target function and a principal criterion for operation of health care system. The urgency of this problem is increasing in the context of reforming the health care system and global changes in the governmental financial guarantees for the provision of medical services to the population...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29782991/beneficial-and-paradoxical-roles-of-selenium-at-nutritional-levels-of-intake-in-healthspan-and-longevity
#2
REVIEW
Li Zhang, Huawei Zeng, Wen-Hsing Cheng
Accumulation of genome and macromolecule damage is a hallmark of aging, age-associated degeneration, and genome instability syndromes. Although processes of aging are irreversible, they can be modulated by genome maintenance pathways and environmental factors such as diet. Selenium (Se) confers its physiological functions mainly through selenoproteins, but Se compounds and other proteins that incorporate Se nonspecifically also impact optimal health. Bruce Ames proposed that the aging process could be mitigated by a subset of low-hierarchy selenoproteins whose levels are preferentially reduced in response to Se deficiency...
May 18, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29782958/changes-in-behavioural-parameters-oxidative-stress-and-neurotrophins-in-the-brain-of-adult-offspring-induced-to-an-animal-model-of-schizophrenia-the-effects-of-fa-deficient-or-fa-supplemented-diet-during-the-neurodevelopmental-phase
#3
L Canever, T G Freire, G A Mastella, L Damázio, S Gomes, I Fachim, C Michels, G Carvalho, A K Godói, B R Peterle, F F Gava, S Valvassori Sda, J Budni, J Quevedo, A I Zugno
A deficiency of maternal folic acid (FA) can compromise the function and development of the brain, and may produce a susceptibility to diseases such as schizophrenia (SZ) in the later life of offspring. The aim of this study was to evaluate the effects of both FA deficient and FA supplemented diets during gestation and lactation on behavioural parameters, the markers of oxidative stress and neurotrophic factors in adult offspring which had been subjected to an animal model of SZ. Female mother rats (Dam's) were separated into experimental maternal groups, which began receiving a special diet (food) consisting of the AIN-93 diet, a control diet, or an FA deficient diet during the periods of pregnancy and lactation...
May 18, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29782926/decoding-cell-signalling-and-regulation-of-oligodendrocyte-differentiation
#4
REVIEW
A K Santos, M S Vieira, R Vasconcellos, V A M Goulart, A H Kihara, R R Resende
Oligodendrocytes are fundamental for the functioning of the nervous system; they participate in several cellular processes, including axonal myelination and metabolic maintenance for astrocytes and neurons. In the mammalian nervous system, they are produced through waves of proliferation and differentiation, which occur during embryogenesis. However, oligodendrocytes and their precursors continue to be generated during adulthood from specific niches of stem cells that were not recruited during development. Deficiencies in the formation and maturation of these cells can generate pathologies mainly related to myelination...
May 18, 2018: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29782911/estrogen-deficiency-exacerbates-a%C3%AE-induced-memory-impairment-through-enhancement-of-neuroinflammation-amylodogenesis-and-nf-%C3%A4-b-activation-in-ovariectomized-mice
#5
Jaesuk Yun, In Jun Yeo, Chul Ju Hwang, Dong-Young Choi, Hyung-Sik Im, Ji Youg Kim, Won Rak Choi, Myung Hee Jung, Sang-Bae Han, Jin Tae Hong
Estrogen is well known to have a preventative effect in Alzheimer's disease (AD) pathology. Several studies have demonstrated that nuclear factor kappa-B (NF-ĸB) can contribute to the effects of estrogen on the development of AD. We investigated whether NF-ĸB affects amyloid-beta (Aβ)-induced memory impairment in an estrogen-lacking condition. In the present study, nine-week-old Institute cancer research (ICR) mice were ovariectomized to block estrogen stimulation. Ten weeks after the ovariectomization, mice were administered with Aβ (300 pmol) via intracerebroventricular (ICV) infusion for 2 weeks...
May 18, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29782494/ubiquitin-dependent-proteolysis-of-cxcl7-leads-to-posterior-longitudinal-ligament-ossification
#6
Michiyo Tsuru, Atsushi Ono, Hideaki Umeyama, Masahiro Takeuchi, Kensei Nagata
Ossification of the posterior longitudinal ligament (OPLL), a spinal ligament, reduces the range of motion in limbs. No treatment is currently available for OPLL, which is why therapies are urgently needed. OPLL occurs in obesity, is more common in men, and has an onset after 40 years of age. The mechanisms underlying OPLL remain unclear. In this study, we performed a serum proteomic analysis in both OPLL patients and healthy subjects to identify factors potentially involved in the development of OPLL, and found reduced levels of a protein that might underlie the pathology of OPLL...
2018: PloS One
https://www.readbyqxmd.com/read/29782332/detection-of-high-risk-thrombophilia-with-an-automated-global-test-the-coagulation-inhibitor-potential-assay
#7
Barbara Réger, Hajna Losonczy, Ágnes Nagy, Ágnes Péterfalvi, Réka Mózes, László Pótó, Nelli Farkas, Gábor L Kovács, Attila Miseta, Alizadeh Hussain, Orsolya Tóth
: The diagnosis of thrombophilia is a cost-consuming and time-consuming process, as each defect should be separately investigated. The Coagulation Inhibitor Potential (CIP) assay is a promising new global test, sensitive for most of the hereditary thrombophilias, developed for manual methodology. We adapt the original method to an optical coagulation analyser. By this automation, the test will be easier, faster and more precise, and it also allows carrying out 18 measurements simultaneously. The CIP assay was performed in 126 healthy subjects and 193 patients with different types of hereditary thrombophilia conditions...
May 17, 2018: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/29782267/-the-role-of-hepcidin-in-formation-of-anemia-of-chronic-disease-and-iron-deficiency-anemia-in-elderly-and-old-patients-with-chronic-heart-failure
#8
N I Solomakhina, E S Nakhodnova, V I Ershov, Y N Belenkov
BACKGROUND: Literature data on hepcidin (H) level - the main regulator of systemic iron homeostasis in patients with chronic heart failure (CHF) - are contradictory. Relationships of H with markers of inflammation elevated level of which is characteristic of CHF are insufficiently studied. The latter problem remains practically unexplored in elderly and very old patients with CHF. AIM: to study the role of H in formation of anemia of chronic disease (ACD) and iron deficiency anemia (IDA) in elderly and very old patients with CHF...
March 2018: Kardiologiia
https://www.readbyqxmd.com/read/29781547/altered-expression-of-matrix-remodeling-associated-7-mxra7-in-psoriatic-epidermis-evidence-for-a-protective-role-in-the-psoriasis-imiquimod-mouse-model
#9
Jinling Ning, Ying Shen, Ting Wang, Mengru Wang, Wei Liu, Yonghu Sun, Furen Zhang, Lingling Chen, Yiqiang Wang
Preliminary datamining performed with Gene Expression Omnibus datasets implied that psoriasis may involve the matrix remodeling associated 7 (MXRA7), a gene with little function information yet. To test that hypothesis, studies were performed in human samples and murine models. Immunohistochemistry in normal human skin showed that MXRA7 proteins were present across the full epidermal layer, with highest expression level detected in the basal layer. In psoriatic samples, MXRA7 proteins were absent in the basal stem cells layer while suprabasal keratinocytes stained at a higher level than in normal tissues...
May 21, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/29781136/physcomitrella-patens-max2-characterization-suggests-an-ancient-role-for-this-f-box-protein-in-photomorphogenesis-rather-than-strigolactone-signalling
#10
Mauricio Lopez-Obando, Ruan de Villiers, Beate Hoffmann, Linnan Ma, Alexandre de Saint Germain, Jens Kossmann, Yoan Coudert, C Jill Harrison, Catherine Rameau, Paul Hills, Sandrine Bonhomme
Strigolactones (SLs) are key hormonal regulators of flowering plant development and are widely distributed amongst streptophytes. In Arabidopsis, SLs signal via the F-box protein MORE AXILLARY GROWTH2 (MAX2), affecting multiple aspects of development including shoot branching, root architecture and drought tolerance. Previous characterization of a Physcomitrella patens moss mutant with defective SL synthesis supports an ancient role for SLs in land plants, but the origin and evolution of signalling pathway components are unknown...
May 21, 2018: New Phytologist
https://www.readbyqxmd.com/read/29780794/pediatric-scurvy-when-contemporary-eating-habits-bring-back-the-past
#11
Alice Brambilla, Cristina Pizza, Donatella Lasagni, Lucia Lachina, Massimo Resti, Sandra Trapani
Vitamin C deficiency is anecdotal in developed countries, mainly associated with underling clinical morbidities as autism or neurological impairment. Chronic insufficient dietary supply is responsible for vascular fragility and impaired bone formation, resulting in gingival bleeding, petechial lesions, articular and bone pain or limb swelling. Children may present anorexia, irritability, failure to thrive, limping or refusal to walk. Accordingly, pediatric scurvy is frequently misdiagnosed with osteomyelitis, septic arthritis, bone and soft tissue tumor, leukemia, bleeding disorders, and rheumatologic conditions...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29779823/the-role-of-thiamine-dependent-enzymes-in-obesity-and-obesity-related-chronic-disease-states-a-systematic-review
#12
REVIEW
Donogh Maguire, Dinesh Talwar, Paul G Shiels, Donald McMillan
The WHO 2016 report indicates that worldwide obesity is rising, with over 600 million people in the obese range (BMI>30). The recommended daily calorie intake for adults is 2000 kcal and 2500 kcal for women and men respectively. The average American consumes 3770 kcal/day and the average person in the UK consumes 3400 kcal/day. With such increased caloric intake, there is an increased load on metabolic pathways, in particular glucose metabolism. Such metabolism requires micronutrients as enzyme co-factors...
June 2018: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29779634/low-pretransplant-iga-level-is-associated-with-early-post-lung-transplant-seromucous-infection
#13
Sudish C Murthy, Robin K Avery, Marie Budev, Sandeep Gupta, Gösta B Pettersson, Edward R Nowicki, Atul Mehta, Jeffrey T Chapman, Jeevanantham Rajeswaran, Eugene H Blackstone
OBJECTIVES: Infection is an important cause of morbidity and mortality after lung transplantation. Immunoglobulins are part of both seromucous (IgA) and serum (IgG) infection defense mechanisms. We therefore hypothesized that lower pretransplant IgA levels would be associated with more early post-lung transplant seromucous infections and greater mortality independent of IgG. METHODS: From January 2000 to July 2010, 538 patients undergoing primary lung transplantation had pretransplant IgA (n = 429) and IgG (n = 488) measured as a clinical routine...
April 13, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29779488/bisphenol-a-induced-endocrinotoxicity-and-male-reprotoxicopathy-is-modulated-by-the-dietary-iron-deficiency
#14
Hina Rashid, Shikha Sharma, Saba Beigh, Firoz Ahmad, Sheikh Raisuddin
INTRODUCTION: Bisphenol A (BPA) is suspected to cause hormonal imbalance in humans. Dietary factors are known to bring changes in hormonal profile. In order to study chemico-biological interaction of iron deficiency on toxicity outcome of BPA exposure, we studied the modulatory effects of iron deficiency on the hormone levels in rats chronically-exposed to BPA. METHODS: Weanling rats maintained on normal and iron-deficient diets were exposed to low level of BPA at 0, 1, 5 and 10 ppm for six months through drinking water...
May 20, 2018: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29778041/the-efficacy-of-vitamin-d-in-multiple-sclerosis-a-meta-analysis
#15
REVIEW
Chao Zheng, Liang He, Lingling Liu, Jie Zhu, Tao Jin
BACKGROUND: Multiple sclerosis (MS) is a chronic inflammatory demyelination disorder in the central nervous system (CNS) leading to a high level of neurological disability. The pathogenesis of MS remains largely unknown, which explains the lack of significant efficacy of therapy in MS. Vitamin D deficiency is widely considered to be an environmental risk factor for MS. Many studies investigating the therapeutic effects of vitamin D on MS have been applied. The objective of this systematic review and meta-analysis was to evaluate the effectiveness of vitamin D in MS patients...
May 12, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29777784/cd146-mediates-an-e-cadherin-to-n-cadherin-switch-during-tgf-%C3%AE-signaling-induced-epithelial-mesenchymal-transition
#16
Yanbin Ma, Haofeng Zhang, Chaoliang Xiong, Zheng Liu, Qingji Xu, Jing Feng, Jun Zhang, Zhaoqing Wang, Xiyun Yan
Cadherin switch is an initiating factor of epithelial-mesenchymal transition (EMT) and is intimately correlated with cancer metastatic potential; however, its underlying mechanisms remain unclear. Here, using a transforming growth factor-β (TGF-β)-induced EMT model, we provide explicit evidence that CD146, with elevated expression and activity in a variety of cancers, is a key factor involved in the cadherin switch. We show that CD146 can be induced by TGF-β signaling. Moreover, CD146 expression is positively correlated with the activation levels of STAT3/Twist and ERK pathways...
May 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29777578/sirt3-deficiency-impairs-neurovascular-recovery-in-ischemic-stroke
#17
Xiao Yang, Ke-Yi Geng, Yan-Shuang Zhang, Jin-Fan Zhang, Ke Yang, Jia-Xiang Shao, Wei-Liang Xia
AIMS: Sirt3 is one member of the NAD+ -dependent protein deacetylase family and plays crucial roles in diverse aspects of mammalian biological function. Then the role of Sirt3 on ischemia stroke is unknown. METHODS: To examine the effect of Sirt3 on ischemic stroke, we performed transient middle cerebral artery occlusion (tMCAO) in adult male Sirt3 knockout (KO) and wild-type (WT) mice. RESULTS: The level of Sirt3 in infarct region is decreased after ischemic stroke...
May 18, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29777240/serum-25-hydroxyvitamin-d-and-cardiovascular-disease-risk-factors-in-women-with-excessive-weight-gain-during-pregnancy-and-in-their-offspring-at-age-5-6-years
#18
Gemma Carreras-Badosa, Cristina Armero-Bujaldón, Laia Solé-Amat, Anna Prats-Puig, Ferran Díaz-Roldán, Pilar Soriano-Rodriguez, Francis de Zegher, Lourdes Ibañez, Judit Bassols, Abel López-Bermejo
BACKGROUND/OBJECTIVE: Low 25-hydroxyvitamin D levels [25(OH)D] may increase the risk for cardiovascular disease (CVD). In pregnant women excessive weight gain and 25(OH)D deficiency are common complications and both could have deleterious consequences on their children. We aimed to study the relationship between serum 25(OH)D and CVD risk factors in pregnant women and in their offspring at school age. SUBJECTS/METHODS: Fasting serum 25(OH)D and its bioavailable fraction were quantified in 310 healthy pregnant women [with adequate (n = 113), insufficient (n = 113) and excessive (n = 84) weight gain]...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29777047/in-vivo-confocal-microscopy-indicates-an-inverse-relationship-between-the-sub-basal-corneal-plexus-and-the-conjunctivalisation-in-patients-with-limbal-stem-cell-deficiency
#19
Manuel Caro-Magdaleno, Asunción Alfaro-Juárez, Jesús Montero-Iruzubieta, Ana Fernández-Palacín, Ana Muñoz-Morales, Manuel Alberto Castilla-Martino, Consuelo Spínola-Muñoz, Enrique Rodríguez-de-la-Rúa
BACKGROUND/AIMS: Limbal stem cell deficiency (LSCD) is characterised by a marked decrease in limbal stem cells. It is classified primarily using subjective slit-lamp observations. In vivo confocal microscopy (IVCM) can non-invasively provide objective information on the condition of the limbal niche, the corneal epithelial basal cell density and the corneal sub-basal nerve plexus density (SND). We here used IVCM to evaluate changes in SND to improve LSCD classification. METHODS: We evaluated and classified 38 patients (76 eyes, 44 with LSC and 32 control eyes) using the Rama, López-García and Deng (clinical and confocal) classifications and evaluated the concordance of the confocal and clinical classifications...
May 18, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29776993/tumor-immune-evasion-arises-through-loss-of-tnf-sensitivity
#20
Conor J Kearney, Stephin J Vervoort, Simon J Hogg, Kelly M Ramsbottom, Andrew J Freeman, Najoua Lalaoui, Lizzy Pijpers, Jessica Michie, Kristin K Brown, Deborah A Knight, Vivien Sutton, Paul A Beavis, Ilia Voskoboinik, Phil K Darcy, John Silke, Joseph A Trapani, Ricky W Johnstone, Jane Oliaro
Immunotherapy has revolutionized outcomes for cancer patients, but the mechanisms of resistance remain poorly defined. We used a series of whole-genome clustered regularly interspaced short palindromic repeat (CRISPR)-based screens performed in vitro and in vivo to identify mechanisms of tumor immune evasion from cytotoxic lymphocytes [CD8+ T cells and natural killer (NK) cells]. Deletion of key genes within the tumor necrosis factor (TNF) signaling, interferon-γ (IFN-γ) signaling, and antigen presentation pathways provided protection of tumor cells from CD8+ T cell-mediated killing and blunted antitumor immune responses in vivo...
May 18, 2018: Science Immunology
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