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https://www.readbyqxmd.com/read/28329745/interleukin-6-and-hepcidin-levels-during-hormone-deplete-and-hormone-replete-phases-of-an-oral-contraceptive-cycle-a-pilot-study
#1
Marc Sim, Brian Dawson, Grant Landers, Dorine W Swinkels, Erwin Wiegerinck, Bu B Yeap, Debbie Trinder, Peter Peeling
BACKGROUND: In the past, elevated estradiol levels were reported to downregulate the iron regulatory hormone hepcidin, thereby potentially improving iron metabolism. As estrogen plays a role in regulating the menstrual cycle and can influence the cytokine interleukin-6 (IL-6; a hepcidin up-regulator), this investigation examined the effects of estradiol supplementation achieved by the use of a monophasic oral contraceptive pill (OCP) on IL-6, hepcidin levels and iron status during the hormone-deplete versus hormone-replete phases within an oral contraceptive cycle (OCC)...
March 23, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28329130/brockenbrough-braunwald-morrow-sign
#2
Ming-Ming Sim
No abstract text is available yet for this article.
October 24, 2016: European Heart Journal
https://www.readbyqxmd.com/read/28328033/effects-of-molecular-weight-and-cationization-agent-on-the-sensitivity-of-bi-cluster-secondary-ion-mass-spectrometry
#3
Makiko Fujii, Rie Shishido, Takaya Satoh, Shigeru Suzuki, Jiro Matsuo
RATIONALE: Bi cluster secondary ion mass spectrometry (SIMS) is one of the most promising tools for precise analysis of synthetic polymers. However, the sensitivity in the high-mass region is still insufficient compared with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS). Accordingly, the effects of metal assistance (cationization agents) were investigated in this study. METHODS: To investigate the effects caused by varying the ionization agent, three different polyethylene glycol (PEG) samples were prepared, one with an Ag-deposited film, and two others mixed with Ag and Na, respectively...
July 30, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28327304/nutrition-as-a-public-health-competency
#4
EDITORIAL
F Sim, P Mackie
No abstract text is available yet for this article.
November 2016: Public Health
https://www.readbyqxmd.com/read/28326690/our-ageing-workforce
#5
EDITORIAL
Jane Sims
No abstract text is available yet for this article.
March 2017: Australasian Journal on Ageing
https://www.readbyqxmd.com/read/28326349/quantitative-in-vivo-micro-computed-tomography-for-assessment-of-age-dependent-changes-in-murine-whole-body-composition
#6
Kim L Beaucage, Steven I Pollmann, Stephen M Sims, S Jeffrey Dixon, David W Holdsworth
Micro-computed tomography (micro-CT) is used routinely to quantify skeletal tissue mass in small animal models. Our goal was to evaluate repeated in vivo micro-CT imaging for monitoring whole-body composition in studies of growth and aging in mice. Male mice from 2 to 52 weeks of age were anesthetized and imaged using an eXplore Locus Ultra and/or eXplore speCZT scanner. Images were reconstructed into 3D volumes, signal-intensity thresholds were used to classify each voxel as adipose, lean or skeletal tissue, and tissue masses were calculated from known density values...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326151/chronic-porphyromonas-gingivalis-infection-accelerates-the-occurrence-of-age-related-granules-in-apoe-mice-brains
#7
Sim K Singhrao, Sasanka Chukkapalli, Sophie Poole, Irina Velsko, St John Crean, Lakshmyya Kesavalu
This study explored the origin of age-related granules in the apolipoprotein E gene knockout (ApoE(-/-)) B6 background mice brains following chronic gingival infection with Porphyromonas gingivalis for 24 weeks. Intracerebral localization of P. gingivalis was detected by fluorescence in situ hybridization (FISH) and its protease by immunohistochemistry. The age-related granules were observed by periodic acid-Schiff (PAS), silver impregnation, and immunostaining. FISH showed intracerebral dissemination of P...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/28325880/balancing-selection-maintains-polymorphisms-at-neurogenetic-loci-in-field-experiments
#8
Eija Lonn, Esa Koskela, Tapio Mappes, Mikael Mokkonen, Angela M Sims, Phillip C Watts
Most variation in behavior has a genetic basis, but the processes determining the level of diversity at behavioral loci are largely unknown for natural populations. Expression of arginine vasopressin receptor 1a (Avpr1a) and oxytocin receptor (Oxtr) in specific regions of the brain regulates diverse social and reproductive behaviors in mammals, including humans. That these genes have important fitness consequences and that natural populations contain extensive diversity at these loci implies the action of balancing selection...
March 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28325528/towards-the-implementation-of-breastfeeding-related-health-services-in-community-pharmacies-pharmacists-perspectives
#9
Tin Fei Sim, H Laetitia Hattingh, Jillian Sherriff, Lisa B G Tee
BACKGROUND: The scope of community pharmacy practice has expanded over the years. Pharmacists are now involved in the provision of a range of professional services. Pharmacists have regular contact with breastfeeding women, and are perceived as easily accessible, trusted health advisors. There is limited information on factors needed to be considered when implementing breastfeeding-related services in pharmacies to meet the needs of this population group. OBJECTIVE: This study aimed to explore community pharmacists' perspectives on the implementation of breastfeeding-related services, the factors to consider and the required implementation strategies in community pharmacies...
March 10, 2017: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/28324754/effects-of-sit-to-stand-training-combined-with-transcutaneous-electrical-stimulation-on-spasticity-muscle-strength-and-balance-ability-in-patients-with-stroke-a-randomized-controlled-study
#10
Kyoung-Sim Jung, Tae-Sung In, Hwi-Young Cho
Sit-to-stand is a fundamental movement of human being for performing mobility and independent activity. However, Stroke people symptoms experience difficulty in conducting the sit-to-stand due to paralysis and especially ankle spasticity. Recently, transcutaneouselectrical- stimulation (TENS) is used to reduce pain but also to manage spasticity. The purpose of this study was to determine (1) whether TENS would lead to ankle spasticity reduction and (2) whether sit-to-stand training combined with TENS would improve spasticity, muscle strength and balance ability in stroke patients...
March 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28324204/tibial-nerve-neuropathy-following-medial-opening-wedge-high-tibial-osteotomy-case-report-of-a-rare-technical-complication
#11
Young-Soo Shin, Hyun-Bo Sim, Jung-Ro Yoon
A 63-year-old woman developed tibial nerve injury caused by an overlong K wire and 4.5-mm cortical lag screw through the first distal hole below the osteotomy during medial opening-wedge high tibial osteotomy (HTO), leading to a lack of sensation on the sole of the foot with no disturbances in motor functions. The temporary lag screw in the first distal hole below the osteotomy is often inserted by an excessive length in order to compress the potentially fractured opposite cortex. By doing so, posterior neurovascular structures including the tibial nerve and the popliteal vessels can be injured...
March 21, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28323970/obesity-modulates-inflammation-and-lipid-metabolism-oocyte-gene-expression-a-single-cell-transcriptome-perspective
#12
Meghan L Ruebel, Matthew Cotter, Clark R Sims, Dean M Moutos, Thomas M Badger, Mario A Cleves, Kartik Shankar, Aline Andres
Context: It is hypothesized that obesity adversely affects the ovarian environment which can disrupt oocyte maturation and may further impact embryonic development. Objective: This study aimed to compare oocyte gene expression profiles and follicular fluid (FF) content from overweight/obese (OW) women and normal weight (NW) women who were undergoing fertility treatments. Design: Using single cell transcriptomic analyses, we investigated oocyte gene expression using RNA-seq...
March 15, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323520/anti-proliferation-effect-of-guanosine-on-hct-116-cells-involves-mapk-and-ampk-pathways
#13
Wuen Yew Teoh, Norhanom Abdul Wahab, Kae Shin Sim
This study aims to investigate the mechanisms associated with the anti-proliferation effect of guanosine on human colon carcinoma HCT 116 cells. In this study, guanosine induced more drastic cell cycle arrest effect than cell death effect on HCT 116 cells. The cell cycle arrest effect of guanosine on HCT 116 cells appeared to be associated with the increased activation of mitogen-activated protein kinases (MAPK) such as ERK1/2, p38 and JNK. The decreased of AMP-activated protein kinase (AMPK) activation and cyclin D1 expression was also involved...
March 21, 2017: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/28323041/quantitative-analyses-of-the-3d-nuclear-landscape-recorded-with-super-resolved-fluorescence-microscopy
#14
Volker J Schmid, Marion Cremer, Thomas Cremer
Recent advancements of super-resolved fluorescence microscopy have revolutionized microscopic studies of cells, including the exceedingly complex structural organization of cell nuclei in space and time. In this paper we describe and discuss tools for (semi-) automated, quantitative 3D analyses of the spatial nuclear organization. These tools allow the quantitative assessment of highly resolved different chromatin compaction levels in individual cell nuclei, which reflect functionally different regions or sub-compartments of the 3D nuclear landscape, and measurements of absolute distances between sites of different chromatin compaction...
March 18, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28322340/signalling-mechanisms-mediating-zn-2-induced-trpm2-channel-activation-and-cell-death-in-microglial-cells
#15
Sharifah Syed Mortadza, Joan A Sim, Martin Stacey, Lin-Hua Jiang
Excessive Zn(2+) causes brain damage via promoting ROS generation. Here we investigated the role of ROS-sensitive TRPM2 channel in H2O2/Zn(2+)-induced Ca(2+) signalling and cell death in microglial cells. H2O2/Zn(2+) induced concentration-dependent increases in cytosolic Ca(2+) concentration ([Ca(2+)]c), which was inhibited by PJ34, a PARP inhibitor, and abolished by TRPM2 knockout (TRPM2-KO). Pathological concentrations of H2O2/Zn(2+) induced substantial cell death that was inhibited by PJ34 and DPQ, PARP inhibitors, 2-APB, a TRPM2 channel inhibitor, and prevented by TRPM2-KO...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321163/optimizing-hepatitis-c-virus-treatment-through-pharmacist-interventions-identification-and-management-of-drug-drug-interactions
#16
Jacob A Langness, Matthew Nguyen, Amanda Wieland, Gregory T Everson, Jennifer J Kiser
AIM: To quantify drug-drug-interactions (DDIs) encountered in patients prescribed hepatitis C virus (HCV) treatment, the interventions made, and the time spent in this process. METHODS: As standard of care, a clinical pharmacist screened for DDIs in patients prescribed direct acting antiviral (DAA) HCV treatment between November 2013 and July 2015 at the University of Colorado Hepatology Clinic. HCV regimens prescribed included ledipasvir/sofosbuvir (LDV/SOF), paritaprevir/ritonavir/ombitasvir/dasabuvir (OBV/PTV/r + DSV), simeprevir/sofosbuvir (SIM/SOF), and sofosbuvir/ribavirin (SOF/RBV)...
March 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28320850/hypertension-in-blacks-unanswered-questions-and-future-directions-for-the-jhs-jackson-heart-study
#17
REVIEW
Paul Muntner, Marwah Abdalla, Adolfo Correa, Michael Griswold, John E Hall, Daniel W Jones, George A Mensah, Mario Sims, Daichi Shimbo, Tanya M Spruill, Katherine L Tucker, Lawrence J Appel
No abstract text is available yet for this article.
March 20, 2017: Hypertension
https://www.readbyqxmd.com/read/28320068/thoracic-electrical-bioimpedance-versus-suprasternal-doppler-in-emergency-care
#18
Mohammed H Elwan, Jeremy Hue, Samira J Green, Salah M Eltahan, Mark R Sims, Timothy J Coats
OBJECTIVE: There are a number of cardiac output (CO) monitors that could potentially be used in the ED. Two of the most promising methods, thoracic electrical bioimpedance and suprasternal Doppler, have not been directly compared. The aim of this study was to investigate the feasibility of CO monitoring using suprasternal Doppler and bioimpedance in emergency care and compare haemodynamic data obtained from both monitors. METHODS: Haemodynamic measurements were made on the same group of patients using bioimpedance (Niccomo, Medis, Germany) and suprasternal Doppler (USCOM, Sydney, Australia)...
March 20, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28319904/sensitivity-enhancement-of-graphene-zinc-oxide-nanocomposite-based-electrochemical-impedance-genosensor-for-single-stranded-rna-detection
#19
Sze Shin Low, Hwei-San Loh, Jian Sheng Boey, Poi Sim Khiew, Wee Siong Chiu, Michelle T T Tan
An efficient electrochemical impedance genosensing platform has been constructed based on graphene/zinc oxide nanocomposite produced via a facile and green approach. Highly pristine graphene was synthesised from graphite through liquid phase sonication and then mixed with zinc acetate hexahydrate for the synthesis of graphene/zinc oxide nanocomposite by solvothermal growth. The as-synthesised graphene/zinc oxide nanocomposite was characterised with scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy and X-ray diffractometry (XRD) to evaluate its morphology, crystallinity, composition and purity...
February 27, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28319340/composition-dependent-hot-carrier-relaxation-dynamics-in-cesium-lead-halide-cspbx3-x-br-and-i-perovskite-nanocrystals
#20
Heejae Chung, Seok Il Jung, Hyo Jin Kim, Wonhee Cha, Eunji Sim, Dongho Kim, Weon-Kyu Koh, Jiwon Kim
Cesium-based perovskite nanocrystals (NCs) have outstanding photophysical properties improving the performances of lighting devices. Fundamental studies on excitonic properties and hot-carrier dynamics in perovskite NCs further suggest that these materials show higher efficiencies compared to the bulk form of perovskites. However, the relaxation rates and pathways of hot-carriers are still being elucidated. By using ultrafast transient spectroscopy and calculating electronic band structures, we investigated the dependence of halide in Cs-based perovskite (CsPbX3 with X=Br, I, or their mixtures) NCs on the hot-carrier relaxation processes...
March 20, 2017: Angewandte Chemie
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