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https://www.readbyqxmd.com/read/29351716/effect-of-metformin-on-glycemic-control-in-patients-with-type-1-diabetes-a-meta-analysis-of-randomized-controlled-trials
#1
Haiyang Meng, Ailing Zhang, Yan Liang, Jie Hao, Xiaojian Zhang, Jingli Lu
BACKGROUND: For T1D patients, adding metformin to insulin therapies is thought to improve blood glucose levels, but current evidence does not support this clinical benefit. Additional data from large clinical trials are now available; therefore, we conducted a meta-analysis of studies on assessing the efficacy and adverse effects of metformin. METHODS: We searched the MEDLINE, EMBASE and Cochrane Library databases for data from randomized controlled trials (RCTs)...
January 19, 2018: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/29351705/percutaneous-endoscopic-rendezvous-procedure-for-the-management-of-bile-duct-injuries-after-cholecystectomy-short-and-long-term-outcomes
#2
Anne Marthe Schreuder, Klaske A C Booij, Philip R de Reuver, Otto M van Delden, Krijn P van Lienden, Marc G Besselink, Olivier R Busch, Dirk J Gouma, Erik A J Rauws, Thomas M van Gulik
BACKGROUND:  Bile duct injury (BDI) remains a daunting complication of laparoscopic cholecystectomy. In patients with complex BDI, a percutaneous-endoscopic rendezvous procedure may be required to establish bile duct continuity. The aim of this study was to assess short- and long-term outcomes of the rendezvous procedure. METHODS:  All consecutive patients with BDI referred to our tertiary referral center between 1995 and 2016 were analyzed. A rendezvous procedure was performed when endoscopic or radiologic intervention failed, and when deemed feasible by a dedicated multidisciplinary team including hepatopancreaticobiliary surgeons, gastrointestinal endoscopists, and interventional radiologists...
January 19, 2018: Endoscopy
https://www.readbyqxmd.com/read/29351685/extended-retrosigmoid-craniotomy-and-clip-occlusion-of-a-petrosal-tentorial-dural-arteriovenous-fistula-type-5-operative-video
#3
Hugo L Doria Netto, Jonadab Dos Santos Silva, Jan-Karl Burkhardt, Michael T Lawton
No abstract text is available yet for this article.
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29351662/the-versatile-tanycyte-a-hypothalamic-integrator-of-reproduction-and-energy-metabolism
#4
Vincent Prevot, Bénédicte Dehouck, Ariane Sharif, Philippe Ciofi, Paolo Giacobini, Jerome Clasadonte
The fertility and survival of an individual rely on the ability of the periphery to promptly, effectively and reproducibly communicate with brain neural networks that control reproduction, food intake and energy homeostasis. Tanycytes, a specialized glial cell type lining the wall of the third ventricle in the median eminence of the hypothalamus, appear to act as the linchpin of these processes by dynamically controlling the secretion of neuropeptides into the portal vasculature by hypothalamic neurons and regulating blood-brain and blood-cerebrospinal fluid exchanges, both processes that depend on the ability of these cells to adapt their morphology to the physiological state of the individual...
January 17, 2018: Endocrine Reviews
https://www.readbyqxmd.com/read/29351640/emergency-fast-bentall-operation
#5
Eugenio Neri, Enrico Tucci, Giulio Tommasino, Luigi Muzzi
We herein report an emergency technique of composite Bentall operation using a fast release valve. The technique was successfully performed in 2 emergency cases after failed supracoronary ascending aortic replacement in acute Type A aortic dissection. The speed and ease of execution are the main advantages of the procedure.
January 16, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29351623/development-of-sugar-chain-binding-single-chain-variable-fragment-antibody-to-adult-t-cell-leukemia-cells-using-glyco-nanotechnology-and-phage-display-method
#6
Kaname Muchima, Taro Todaka, Hiroyuki Shinchi, Ayaka Sato, Arisa Tazoe, Rikiya Aramaki, Yuhei Kakitsubata, Risa Yokoyama, Naomichi Arima, Masanori Baba, Masahiro Wakao, Yuji Ito, Yasuo Suda
Adult T-cell leukemia (ATL) is an intractable blood cancer caused by the infection of human T-cell leukemia virus type-1, and effective medical treatment is required. It is known that the structure and expression levels of cell surface sugar chains vary depending on cell states such as inflammation and cancer. Thus, it is expected that the antibody specific for ATL cell surface sugar chain would be an effective diagnostic tool and a strong candidate for the development of an anti-ATL drug. Here, we developed a stable sugar chain binding single chain variable fragment antibody (scFv) that can bind to ATL cells using a fiber type Sugar Chip and phage display method...
January 17, 2018: Journal of Biochemistry
https://www.readbyqxmd.com/read/29351619/repairing-folding-defective-%C3%AE-sarcoglycan-mutants-by-cftr-correctors-a-potential-therapy-for-limb-girdle-muscular-dystrophy-2d
#7
Marcello Carotti, Justine Marsolier, Michela Soardi, Elisa Bianchini, Chiara Gomiero, Chiara Fecchio, Sara F Henriques, Romeo Betto, Roberta Sacchetto, Isabelle Richard, Dorianna Sandonà
Limb Girdle Muscular Dystrophy type 2D (LGMD2D) is a rare autosomal-recessive disease, affecting striated muscle, due to mutation of SGCA, the gene coding for α-sarcoglycan. Nowadays more than 50 different SGCA missense mutations have been reported. They are supposed to impact folding and trafficking of α-sarcoglycan because the defective polypeptide, although potentially functional, is recognized and disposed of by the quality control of the cell. The secondary reduction of α-sarcoglycan partners, β-, γ- and δ-sarcoglycan, disrupts a key membrane complex that, associated to dystrophin, contributes to assure sarcolemma stability during muscle contraction...
January 16, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29351614/a-membrane-g-protein-coupled-estrogen-receptor-is-necessary-but-not-sufficient-for-sex-differences-in-zebra-finch-auditory-coding
#8
Amanda A Krentzel, Matheus Macedo-Lima, Maaya Z Ikeda, Luke Remage-Healey
Estradiol acts as a neuromodulator in brain regions important for cognition and sensory processing. Estradiol also shapes brain sex differences, but rarely have these concepts been considered simultaneously. In male and female songbirds, estradiol rapidly increases within the auditory forebrain during song exposure and enhances local auditory processing. We tested whether GPER1, a membrane bound estrogen receptor, is necessary and sufficient for neuroestrogen regulation of forebrain auditory processing in male and female zebra finches (Taeniopygia guttata)...
January 17, 2018: Endocrinology
https://www.readbyqxmd.com/read/29351610/orthotopic-branched-endovascular-aortic-arch-repair-in-patients-who-cannot-undergo-classical-surgery
#9
Martin Czerny, Bartosz Rylski, Julia Morlock, Holger Schröfel, Friedhelm Beyersdorf, Bertrand Saint Lebes, Olivier Meyrignac, Fatima Mokrane, Mario Lescan, Christian Schlensak, Constatijn Hazenberg, Trijntje Bloemert-Tuin, Sue Braithwaite, Joost van Herwaarden, Herve Rousseau
OBJECTIVES: Our goal was to assess the results after orthotopic branched endovascular aortic arch repair using a new double-branch endoprosthesis in patients with thoracic aortic disease affecting the aortic arch who cannot undergo classical surgery. METHODS: Within a 4-year period, 15 patients with thoracic aortic disease affecting the aortic arch were treated with the Bolton Relay plus double-branch endoprosthesis (Bolton Medical, Sunrise, FL, USA). We assessed clinical outcome, occurrence of endoleaks and the need for secondary interventions...
January 16, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29351600/gtc-how-to-maintain-huge-genotype-collections-in-a-compressed-form
#10
Agnieszka Danek, Sebastian Deorowicz
Motivation: Nowadays, genome sequencing is frequently used in many research centers. In projects, such as the Haplotype Reference Consortium or the Exome Aggregation Consortium, huge databases of genotypes in large populations are determined. Together with the increasing size of these collections, the need for fast and memory frugal ways of representation and searching in them becomes crucial. Results: We present GTC, a novel compressed data structure for representation of huge collections of genetic variation data...
January 16, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29351588/sorghum-root-system-classification-in-contrasting-p-environments-reveals-three-main-rooting-types-and-root-architecture-related-marker-trait-associations
#11
Sebastian Parra-Londono, Mareike Kavka, Birgit Samans, Rod Snowdon, Silke Wieckhorst, Ralf Uptmoor
Background and Aims: Roots facilitate acquisition of macro- and micronutrients, which are crucial for plant productivity and anchorage in the soil. Phosphorus (P) is rapidly immobilized in the soil and hardly available for plants. Adaptation to P scarcity relies on changes in root morphology towards rooting systems well suited for topsoil foraging. Root-system architecture (RSA) defines the spatial organization of the network comprising primary, lateral and stem-derived roots and is important for adaptation to stress conditions...
January 17, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29351582/sco2-mutations-cause-early-onset-axonal-charcot-marie-tooth-disease-associated-with-cellular-copper-deficiency
#12
Adriana P Rebelo, Dimah Saade, Claudia P Pereira, Amjad Farooq, Tyler C Huff, Lisa Abreu, Carlos T Moraes, Diana Mnatsakanova, Kathy Mathews, Hua Yang, Eric A Schon, Stephan Zuchner, Michael E Shy
Recessive mutations in the mitochondrial copper-binding protein SCO2, cytochrome c oxidase (COX) assembly protein, have been reported in several cases with fatal infantile cardioencephalomyopathy with COX deficiency. Significantly expanding the known phenotypic spectrum, we identified compound heterozygous variants in SCO2 in two unrelated patients with axonal polyneuropathy, also known as Charcot-Marie-Tooth disease type 4. Different from previously described cases, our patients developed predominantly motor neuropathy, they survived infancy, and they have not yet developed the cardiomyopathy that causes death in early infancy in reported patients...
January 16, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29351564/steatosis-in-south-african-women-how-much-and-why
#13
Nitien H Naran, Mark Haagensen, Nigel J Crowther
BACKGROUND: Globally, steatosis is the commonest type of liver pathology and is closely associated with obesity and the metabolic syndrome. Obesity is common in urban African females but no data is available on hepatic fat content in this population group when compared to other ethnic groups. The aim of this study was therefore to compare hepatic fat content in woman from different ethnic groups in South Africa and to characterise the principle determinants of liver fat. MATERIALS AND METHODS: A convenience sample of 106 (48 Indian, 29 African and 29 Caucasian) female volunteers aged 20-60 years and having no history of cardiometabolic disorders were recruited...
2018: PloS One
https://www.readbyqxmd.com/read/29351561/preconception-use-of-cart-by-hiv-positive-pregnant-women-increases-the-risk-of-infants-being-born-small-for-gestational-age
#14
Ingrid J M Snijdewind, Colette Smit, Mieke H Godfried, Rachel Bakker, Jeannine F J B Nellen, Vincent W V Jaddoe, Elisabeth van Leeuwen, Peter Reiss, Eric A P Steegers, Marchina E van der Ende
BACKGROUND: The benefits of combination anti-retroviral therapy (cART) in HIV-positive pregnant women (improved maternal health and prevention of mother to child transmission [pMTCT]) currently outweigh the adverse effects due to cART. As the variety of cART increases, however, the question arises as to which type of cART is safest for pregnant women and women of childbearing age. We studied the effect of timing and exposure to different classes of cART on adverse birth outcomes in a large HIV cohort in the Netherlands...
2018: PloS One
https://www.readbyqxmd.com/read/29351553/hierarchical-and-hybrid-energy-storage-devices-in-data-centers-architecture-control-and-provisioning
#15
Mengshu Sun, Yuankun Xue, Paul Bogdan, Jian Tang, Yanzhi Wang, Xue Lin
Recently, a new approach has been introduced that leverages and over-provisions energy storage devices (ESDs) in data centers for performing power capping and facilitating capex/opex reductions, without performance overhead. To fully realize the potential benefits of the hierarchical ESD structure, we propose a comprehensive design, control, and provisioning framework including (i) designing power delivery architecture supporting hierarchical ESD structure and hybrid ESDs for some levels, as well as (ii) control and provisioning of the hierarchical ESD structure including run-time ESD charging/discharging control and design-time determination of ESD types, homogeneous/hybrid options, ESD provisioning at each level...
2018: PloS One
https://www.readbyqxmd.com/read/29351548/common-cuckoos-cuculus-canorus-affect-the-bacterial-diversity-of-the-eggshells-of-their-great-reed-warbler-acrocephalus-arundinaceus-hosts
#16
Nikoletta Geltsch, Zoltán Elek, László Manczinger, Csaba Vágvölgyi, Csaba Moskát
The common cuckoo (Cuculus canorus) is an avian brood parasite, laying its eggs in the nests of other bird species, where these hosts incubate the parasitic eggs, feed and rear the nestlings. The appearance of a cuckoo egg in a host nest may change the bacterial community in the nest. This may have consequences on the hatchability of host eggs, even when hosts reject the parasitic egg, typically within six days after parasitism. The present study revealed the bacterial community of cuckoo eggshells and those of the great reed warbler (Acrocephalus arundinaceus), one of the main hosts of cuckoos...
2018: PloS One
https://www.readbyqxmd.com/read/29351547/mortality-and-continuity-of-care-definitions-matter-a-cohort-study-in-diabetics
#17
Angelika Geroldinger, Simone Katja Sauter, Georg Heinze, Gottfried Endel, Wolfgang Dorda, Georg Duftschmid
OBJECTIVE: To demonstrate that when investigating the relevance of continuity of care for patient outcomes, different definitions can lead to contradicting results. METHODS: We used claims data from the regional public health insurer of Lower Austria covering the period from 2008 to 2011. The study sample included subjects with repeated dispensings of anti-diabetic drugs. The continuity of care index was calculated firstly based on a patient's contacts with general practitioners (primary COCI) and secondly based on contacts at all medical disciplines (total COCI)...
2018: PloS One
https://www.readbyqxmd.com/read/29351511/chemogenetic-tools-for-causal-cellular-and-neuronal-biology
#18
Deniz Atasoy, Scott M Sternson
Chemogenetic technologies enable selective pharmacological control of specific cell populations. An increasing number of approaches have been developed that modulate different signaling pathways. Selective pharmacological control over G protein-coupled receptor signaling, ion channel conductances, protein association, protein stability, and small molecule targeting allows modulation of cellular processes in distinct cell types. Here, we review these chemogenetic technologies and instances of their applications in complex tissues in vivo and ex vivo...
January 1, 2018: Physiological Reviews
https://www.readbyqxmd.com/read/29351486/different-physiological-roles-of-insulin-receptors-in-mediating-nutrient-metabolism-in-zebrafish
#19
Bin-Yuan Yang, Gang Zhai, Yu-Long Gong, Jing-Zhi Su, Xu-Yan Peng, Guo-Hui Shang, Dong Han, Jun-Yan Jin, Hao-Kun Liu, Zhen-Yu Du, Zhan Yin, Shou-Qi Xie
Insulin, the most potent anabolic hormone, is critical for somatic growth and metabolism in vertebrates. Type 2 diabetes, which is the primary cause of hyperglycemia, results from an inability of insulin to signal glycolysis and gluconeogenesis. Our previous study showed that double knockout of insulin receptor a (insra) and b (insrb) caused β-cell hyperplasia and lethality from 5 dpf to 16 dpf. In this study, we characterized the physiological roles of Insra and Insrb, in somatic growth and fueling metabolism, respectively...
December 19, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351485/insulin-signaling-displayed-a-differential-tissue-specific-response-to-low-dose-dht-in-female-mice
#20
Stanley Andrisse, Katelyn Billings, Ping Xue, Sheng Wu
Hyperandrogenemia and hyperinsulinemia are believed to play prominent roles in polycystic ovarian syndrome (PCOS). We explored the effects of low dose dihydrotestosterone (DHT), a PCOS model, on insulin signaling in metabolic and re-productive tissues in a female mouse model. Insulin resistance in the energy storage tissues is associated with type 2 diabetes. Insulin signaling in the ovaries and pituitary either directly or indirectly stimulates androgen production. Energy storage and reproductive tissues were isolated and molecular assays were performed...
December 19, 2017: American Journal of Physiology. Endocrinology and Metabolism
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