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https://www.readbyqxmd.com/read/28813108/consequences-of-gestational-diabetes-to-the-brain-and-behavior-of-the-offspring
#1
Ricardo A L DE Sousa, Yasmin S Torres, Claudia P Figueiredo, Giselle F Passos, Julia R Clarke
Gestational diabetes mellitus (GD) is a form of insulin resistance triggered during the second/third trimesters of pregnancy in previously normoglycemic women. It is currently estimated that 10% of all pregnancies in the United States show this condition. For many years, the transient nature of GD has led researchers and physicians to assume that long-term consequences were absent. However, GD diagnosis leads to a six-fold increase in the risk of developing type 2 diabetes (T2D) in women and incidence of obesity and T2D is also higher among their infants...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28813058/fine-tuning-of-catalytic-and-sorption-properties-of-metal-organic-frameworks-via-in-situ-ligand-exchange
#2
Peng Wang, Kai Chen, Qing Liu, Huai-Wei Wang, Mohammad Azam, Saud I Al-Resayes, Yi Lu, Wei-Yin Sun
Metal-organic frameworks (MOFs) are gaining considerable attention not only because of their diverse structures but also due to their interesting properties and potential applications. However, fabrication of MOFs with desired structures and properties remains a great challenge. In this study, a strategy based on ligand exchange via single-crystal-to-single-crystal (SCSC) transformation has been undertaken, which can be used to achieve MOFs not available by direct synthesis and also to enrich the family of isoreticular MOFs...
August 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28813052/mixed-ligand-iridium-iii-complexes-as-photodynamic-anticancer-agents
#3
Yue Zheng, Liang He, Dong-Yang Zhang, Cai-Ping Tan, Liang-Nian Ji, Zong-Wan Mao
Many phosphorescent iridium complexes are potent candidates as photodynamic therapeutic agents. In this work, a series of mixed-ligand phosphorescent iridium complexes (Ir1: [Ir(L1)(bpy)Cl](PF6)2; Ir2: [Ir(L1)(ppy)Cl](PF6); Ir3: [Ir(L2)(bpy)Cl](PF6)2; Ir4: [Ir(L2)(ppy)Cl](PF6). L1 = 2,6-bis(2-benzimidazolyl)pyridine; bpy = 2,2'-bipyridine; L2 = 2,6-bis(1-methyl-benzimidazol-2-yl)pyridine; ppy = 2-phenylpyridine) have been synthesized and characterized. These complexes display high luminescence quantum yields and long phosphorescence lifetimes...
August 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28813050/on-surface-synthesis-of-heptacene-and-its-interaction-with-a-metal-surface
#4
Malte Zugermeier, Manuel Gruber, Martin Schmid, Benedikt P Klein, Lukas Ruppenthal, Philipp Müller, Ralf Einholz, Wolfgang Hieringer, Richard Berndt, Holger F Bettinger, J Michael Gottfried
Heptacene was generated by surface-assisted didecarbonylation of an α-diketone precursor on a Ag(111) surface. Monitoring of the surface reaction and characterization of the adsorbed heptacene was performed with scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), near-edge X-ray absorption fine structure (NEXAFS) spectroscopy, and density functional theory (DFT) calculations. The surface-assisted formation of heptacene occurs around 460 K. Both the heptacene and the precursor molecules are oriented along the high-symmetry directions of the (111) surface and their molecular π systems face towards the substrate...
August 16, 2017: Nanoscale
https://www.readbyqxmd.com/read/28812969/functional-expression-of-bmp7-receptors-in-oral-epithelial-cells-interleukin-17f-production-in-response-to-bmp7
#5
Kensuke Nishio, Yasumasa Ozawa, Hisanori Ito, Takashi Kifune, Tatsuya Narita, Toshimitsu Iinuma, Nobuhito Gionhaku, Masatake Asano
BACKGROUND: Bone morphogenetic proteins (BMPs) are members of the transforming growth factor-β (TGF-β) superfamily. Recently, BMP7 has been demonstrated to be produced by salivary glands and contribute to embryonic branching in mice. The BMP7 in saliva is thought to be delivered to the oral cavity and is expected to contact with stratified squamous epithelial cells which line the surface of oral mucosa. In this study, we attempted to investigate the effects of BMP7 on oral epithelial cells...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28812935/motivations-for-learning-of-family-medicine-residents-trained-in-competency-based-education
#6
Oksana Babenko, Olga Szafran, Sudha Koppula, Lillian Au
BACKGROUND AND OBJECTIVE: Family physicians regularly encounter clinical uncertainty and ambiguity and thus, are expected to engage in on-going learning to respond to changing needs of family practice. Using Achievement Goal Theory, the objective of this study was to examine motivations for learning of family medicine residents in a competency-based program. METHOD: This was a cross-sectional study, employing a survey methodology with family medicine residents at the mid-point of training at a Canadian university...
August 16, 2017: Education for Primary Care
https://www.readbyqxmd.com/read/28812880/an-exceptionally-narrow-band-gap-%C3%A2-4-ev-silicate-predicted-in-the-cubic-perovskite-structure-basio3
#7
Hidenori Hiramatsu, Hitoshi Yusa, Ryo Igarashi, Yasuo Ohishi, Toshio Kamiya, Hideo Hosono
The electronic structures of 35 A(2+)B(4+)O3 ternary cubic perovskite oxides, including their hypothetical chemical compositions, were calculated by a hybrid functional method with the expectation that peculiar electronic structures and unique carrier transport properties suitable for semiconductor applications would be hidden in high-symmetry cubic perovskite oxides. We found unique electronic structures of Si-based oxides (A = Mg, Ca, Sr, and Ba, and B = Si). In particular, the unreported cubic BaSiO3 has a very narrow band gap (4...
August 16, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28812834/cost-effectiveness-of-rural-incentive-packages-for-graduating-medical-students-in-lao-pdr
#8
Eric Keuffell, Wanda Jaskiewicz, Khampasong Theppanya, Kate Tulenko
BACKGROUND: The dearth of health workers in rural settings in Lao People's Democratic Republic (PDR) and other developing countries limits healthcare access and outcomes. In evaluating non-wage financial incentive packages as a potential policy option to attract health workers to rural settings, understanding the expected costs and effects of the various programs ex ante can assist policy-makers in selecting the optimal incentive package. METHODS: We use discrete choice experiments (DCEs), costing analyses and recent empirical results linking health worker density and health outcomes to estimate the future location decisions of physicians and determine the cost-effectiveness of 15 voluntary incentives packages for new physicians in Lao PDR...
October 29, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812815/stakeholders-perspectives-on-the-success-drivers-in-ghana-s-national-health-insurance-scheme-identifying-policy-translation-issues
#9
Adam Fusheini, Gordon Marnoch, Ann Marie Gray
BACKGROUND: Ghana's National Health Insurance Scheme (NHIS), established by an Act of Parliament (Act 650), in 2003 and since replaced by Act 852 of 2012 remains, in African terms, unprecedented in terms of growth and coverage. As a result, the scheme has received praise for its associated legal reforms, clinical audit mechanisms and for serving as a hub for knowledge sharing and learning within the context of South-South cooperation. The scheme continues to shape national health insurance thinking in Africa...
October 1, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812776/labelled-sunscreen-spfs-may-overestimate-protection-in-natural-sunlight
#10
Brian Diffey, Uli Osterwalder
Limited evidence exists to indicate that sunscreen protection factors determined in the laboratory are higher than those in natural sunlight. In this article we propose an explanation for this difference and estimate the expected SPFs of sunscreen products in natural sunlight and those expected from laboratory testing. Our results indicate that the labelled SPF, determined by in vivo assay using a UV solar simulator, overestimates the SPF that would be expected in natural sunlight to the extent that for products labelled SPF50+, it may not be possible to achieve a protection against sunlight of more than 25-fold...
August 16, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28812720/antagonistic-pleiotropy-and-mutation-accumulation-influence-human-senescence-and-disease
#11
Juan Antonio Rodríguez, Urko M Marigorta, David A Hughes, Nino Spataro, Elena Bosch, Arcadi Navarro
Senescence has long been a public health challenge as well as a fascinating evolutionary problem. There is neither a universally accepted theory for its ultimate causes, nor a consensus about what may be its impact on human health. Here we test the predictions of two evolutionary explanations of senescence-mutation accumulation and antagonistic pleiotropy-which postulate that genetic variants with harmful effects in old ages can be tolerated, or even favoured, by natural selection at early ages. Using data from genome-wide association studies (GWAS), we study the effects of genetic variants associated with diseases appearing at different periods in life, when they are expected to have different impacts on fitness...
January 30, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812696/skeletal-trauma-reflects-hunting-behaviour-in-extinct-sabre-tooth-cats-and-dire-wolves
#12
Caitlin Brown, Mairin Balisi, Christopher A Shaw, Blaire Van Valkenburgh
Skeletal-injury frequency and distribution are likely to reflect hunting behaviour in predatory vertebrates and might therefore differ between species with distinct hunting modes. Two Pleistocene predators from the Rancho La Brea asphalt seeps, the sabre-tooth cat, Smilodon fatalis, and dire wolf, Canis dirus, represent ambush and pursuit predators, respectively. On the basis of a collection of over 1,900 pathological elements, the frequency of traumatic injury across skeletal elements in these two species was calculated...
April 10, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812633/diversity-begets-diversity-in-competition-for-space
#13
Daniel S Maynard, Mark A Bradford, Daniel L Lindner, Linda T A van Diepen, Serita D Frey, Jessie A Glaeser, Thomas W Crowther
Competition can profoundly affect biodiversity patterns by determining whether similar species are likely to coexist. When species compete directly for space, competitive ability differences should theoretically promote trait and phylogenetic clustering, provided that niche differences are otherwise minimal. Yet many sessile communities exhibit high biodiversity despite minimal reliance on niche differentiation. A potential explanation is that intransitive competition ('rock-paper-scissors' competition) not only promotes species richness but also fosters coexistence among highly dissimilar species with different competitive strategies...
May 15, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812626/dispersal-governs-the-reorganization-of-ecological-networks-under-environmental-change
#14
Patrick L Thompson, Andrew Gonzalez
Ecological networks, such as food webs, mutualist webs and host-parasite webs, are reorganizing as species abundances and spatial distributions shift in response to environmental change. Current theoretical expectations for how this reorganization will occur are available for competition or for parts of interaction networks, but these may not extend to more complex networks. Here we use metacommunity theory to develop new expectations for how complex networks will reorganize under environmental change, and show that dispersal is crucial for determining the degree to which networks will retain their composition and structure...
May 8, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812603/climate-change-upends-selection-on-ornamentation-in-a-wild-bird
#15
Simon R Evans, Lars Gustafsson
Secondary sexual traits have high heritabilities and are exposed to strong, environmentally sensitive selection, and so are expected to evolve rapidly in response to sustained environmental change. We examine the eco-evolutionary dynamics of ornament expression in a long-term study population of collared flycatchers, Ficedula albicollis, in which forehead patch size, which positively influences male reproductive success, declined markedly over 34 years. Annual fitness selection on forehead patch size switched from positive to negative during the study, a reversal that is accounted for by rising spring temperatures at the breeding site: highly ornamented males were selectively favoured following cold breeding seasons but selected against following warm breeding seasons...
January 23, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812473/implementation-of-a-pathway-for-the-treatment-of-fever-and-neutropenia-in-pediatric-patients-with-cancer
#16
Joy Vanderway, Catherine Vincent, Susan M Walsh, Jennifer Obrecht
Fever and neutropenia is an oncologic emergency. Time-to-antibiotics (TTA) refers to the amount of time from initial provider evaluation for fever and neutropenia to intravenous antibiotic administration. Research supports that rapid time-to-antibiotics (RTTA) is associated with improved patient outcomes. This quality improvement project evaluated the success of implementing an RTTA pathway in pediatric oncology patients with fever and neutropenia. The setting was an advanced practice nurse-managed pediatric ambulatory infusion center where patients with fever and neutropenia were often evaluated and treated...
September 2017: Journal of Pediatric Oncology Nursing: Official Journal of the Association of Pediatric Oncology Nurses
https://www.readbyqxmd.com/read/28812466/florid-intussusceptive-like-microvascular-dysangiogenesis-in-a-preterm-lung
#17
Monique E De Paepe, Merline Kocheekkaran V Benny, Lauren Priolo, Francois I Luks, Svetlana Shapiro
The cellular mechanisms underlying the microvascular dysangiogenesis of bronchopulmonary dysplasia (chronic lung disease of the newborn) remain largely undetermined. We report unusual pulmonary vascular findings in a 27-week-gestation male newborn who died on the second day of life from intractable respiratory failure, following a pregnancy complicated by prolonged membrane rupture and persistent severe oligohydramnios. As expected, postmortem examination revealed pulmonary hypoplasia (lung/body weight ratio: 2...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28812449/balancing-performance-based-expectations-with-a-holistic-perspective-on-coaching-a-qualitative-study-of-swedish-women-s-national-football-team-coaches-practice-experiences
#18
Eva-Carin Lindgren, Natalie Barker-Ruchti
PURPOSE: The purpose of this study was to explore how an exclusive sample of women's national football team coaches described how they implement careful coaching while facing social and organizational pressure to win medals. METHOD: To consider coaches' negotiations, we drew on Noddings' concept of caring. Using an interpretive research paradigm, we conducted in-depth interviews with five Swedish women's national football team coaches. An abductive approach was used to simultaneously process the theoretical framework of "ethics of care" and the empirical data...
December 2017: International Journal of Qualitative Studies on Health and Well-being
https://www.readbyqxmd.com/read/28812408/calcium-pyrophosphate-deposition-disease-a-frequent-finding-in-patients-with-long-standing-erosive-gout
#19
B Ankli, D Kyburz, A Hirschmann, T Hügle, T Manigold, C T Berger, T Daikeler
OBJECTIVE: To characterize patients with both monosodium urate (MSU) and calcium pyrophosphate (CPP) crystals in their synovial fluid (SF). METHOD: Forty-nine gout patients with acute arthritis were included. Those patients with MSU crystals only in their SF were compared to those patients with both MSU and CPP crystals in their SF. RESULTS: A total of 36 out of 49 patients (73.5%) had only MSU crystals, whereas 13 out of 49 (26.5%) had both MSU and CPP crystals in their SF...
August 16, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28812388/silk-nanoparticles-proof-of-lysosomotropic-anticancer-drug-delivery-at-single-cell-resolution
#20
John D Totten, Thidarat Wongpinyochit, F Philipp Seib
Silk nanoparticles are expected to improve chemotherapeutic drug targeting to solid tumours by exploiting tumour pathophysiology, modifying the cellular pharmacokinetics of the payload and ultimately resulting in trafficking to lysosomes and triggering drug release. However, experimental proof for lysosomotropic drug delivery by silk nanoparticles in live cells is lacking and the importance of lysosomal pH and enzymes controlling drug release is currently unknown. Here, we demonstrate, in live single human breast cancer cells, the role of the lysosomal environment in determining silk nanoparticle-mediated drug release...
August 16, 2017: Journal of Drug Targeting
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