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https://www.readbyqxmd.com/read/28931176/the-role-of-cortisol-acth-ratio-for-screening-of-subclinical-hypercortisolism-in-patients-with-adrenal-incidentalomas
#1
Lele Li, Guoqing Yang, Jingtao Dou, Weijun Gu, Zhaohui Lv, Juming Lu, Yiming Mu
Introduction The cortisol/ACTH ratio was supposed to be helpful in the screening of subclinical hypercortisolism (SHC) in the published literatures. This study assessed the cortisol/ACTH ratio in patients with adrenal incidentaloma (AI) confirmed to have SHC and investigated its role for screening SCS in patients with AI. Methods This descriptive retrospective study included 183 patients with AIs [45 with SHC and 138 with non-functional adenoma (NFA)]. Cortisol and ACTH levels were measured at 8:00, 16:00, and 0:00, and the cortisol/ACTH ratio was calculated...
September 20, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28931062/factors-associated-with-hepatitis-c-prevalence-differ-by-the-stage-of-liver-fibrosis-a-cross-sectional-study-in-the-general-population-in-poland-2012-2016
#2
Magdalena Rosińska, Natalia Parda, Agnieszka Kołakowska, Paulina Godzik, Karolina Zakrzewska, Kazimierz Madaliński, Andrzej Zieliński, Anna Boguradzka, Rafał Gierczyński, Małgorzata Stępień
BACKGROUND & AIMS: There is a considerable burden of hepatitis C in Europe related to the lack of prompt diagnosis. We aimed to estimate the prevalence and related risk factors of HCV infections by the stages of liver fibrosis, using non-invasive methods, to understand testing needs in Poland. METHODS: A cross-sectional study was conducted in 2012-2016 adopting a stratified random sampling of primary health care units followed by systematic sampling of patients within each unit...
2017: PloS One
https://www.readbyqxmd.com/read/28931053/identification-and-molecular-characterization-of-a-metagenome-derived-l-lysine-decarboxylase-gene-from-subtropical-soil-microorganisms
#3
Jie Deng, Hua Gao, Zhen Gao, Huaxian Zhao, Ying Yang, Qiaofen Wu, Bo Wu, Chengjian Jiang
L-lysine decarboxylase (LDC, EC 4.1.1.18) is a key enzyme in the decarboxylation of L-lysine to 1,5-pentanediamine and efficiently contributes significance to biosynthetic capability. Metagenomic technology is a shortcut approach used to obtain new genes from uncultured microorganisms. In this study, a subtropical soil metagenomic library was constructed, and a putative LDC gene named ldc1E was isolated by function-based screening strategy through the indication of pH change by L-lysine decarboxylation. Amino acid sequence comparison and homology modeling indicated the close relation between Ldc1E and other putative LDCs...
2017: PloS One
https://www.readbyqxmd.com/read/28930984/high-fat-diet-feeding-and-high-throughput-triacylglyceride-assay-in-drosophila-melanogaster
#4
Soda Balla Diop, Ryan T Birse, Rolf Bodmer
Heart disease is the number one cause of human death worldwide. Numerous studies have shown strong connections between obesity and cardiac malfunction in humans, but more tools and research efforts are needed to better elucidate the mechanisms involved. For over a century, the genetically highly tractable model of Drosophila has been instrumental in the discovery of key genes and molecular pathways that proved to be highly conserved across species. Many biological processes and disease mechanisms are functionally conserved in the fly, such as development (e...
September 13, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930983/personalized-peptide-arrays-for-detection-of-hla-alloantibodies-in-organ-transplantation
#5
Pan Liu, Tomokazu Souma, Andrew Zu-Sern Wei, Xueying Xie, Xunrong Luo, Jing Jin
In organ transplantation, the function and longevity of the graft critically rely on the success of controlling immunological rejection reactivity against human leukocyte antigens (HLA). Histocompatibility guidelines are based on laboratory tests of anti-HLA immunity, which presents either as pre-existing or de novo generated HLA antibodies that constitute a major transplantation barrier. Current tests are built on a single-antigen beads (SAB) platform using a fixed set of ~100 preselected recombinant HLA antigens to probe transplant sera...
September 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930970/screening-of-critical-genes-and-micrornas-in-blood-samples-of-patients-with-ruptured-intracranial-aneurysms-by-bioinformatic-analysis-of-gene-expression-data
#6
Lijuan Bo, Bo Wei, Zhanfeng Wang, Daliang Kong, Zheng Gao, Zhuang Miao
BACKGROUND This study aimed to identify more potential genes and miRNAs associated with the pathogenesis of intracranial aneurysms (IAs). MATERIAL AND METHODS The dataset of GSE36791 (accession number) was downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were screened for in the blood samples from patients with ruptured IAs and controls, followed by functional and pathway enrichment analyses. In addition, gene co-expression network was constructed and significant modules were extracted from the network by WGCNA R package...
September 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28930873/preseason-functional-test-scores-are-associated-with-future-sports-injury-in-female-collegiate-athletes
#7
Jason Brumitt, Bryan Heiderscheit, Robert Manske, Paul E Niemuth, Alma Mattocks, Mitchell J Rauh
Recent prospective cohort studies have reported preseason functional performance test (FPT) measures and associations with future risk of injury; however, the findings associated with these studies have been equivocal. The purpose of this study was to determine the ability of a battery of FPTs as a preseason screening tool to identify female Division III (D III) collegiate athletes who may be at risk for a non-contact time-loss injury to the lower quadrant [LQ = low back and lower extremities]. One hundred six female D III athletes were recruited for this study...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930861/targeted-gene-panel-sequencing-for-early-onset-inflammatory-bowel-disease-and-chronic-diarrhea
#8
Britt-Sabina Petersen, Dietrich August, Renate Abt, Moudjahed Alddafari, Lida Atarod, Safa Baris, Hemant Bhavsar, Florian Brinkert, Mary Buchta, Alla Bulashevska, Ronnie Chee, Ana I Cordeiro, Naghi Dara, Gregor Dückers, Aisha Elmarsafy, Natalie Frede, Nermeen Galal, Patrick Gerner, Erik-Oliver Glocker, Sigune Goldacker, Jutta Hammermann, Peter Hasselblatt, Zuzana Havlicekova, Katrin Hübscher, Milos Jesenak, Neslihan E Karaca, Elif Karakoc-Aydiner, Mahboubeh M Kharaghani, Sara S Kilic, Ayca Kiykim, Christoph Klein, Christian Klemann, Robin Kobbe, Daniel Kotlarz, Martin W Laass, T Ronan Leahy, Mehrnaz Mesdaghi, Sally Mitton, João F Neves, Birol Öztürk, Luis F Pereira, Jan Rohr, Jessica L R Restrepo, Gunda Ruzaike, Nadia Saleh, Suranjith Seneviratne, Ebru Senol, Carsten Speckmann, Daniel Tegtmeyer, Paul Thankam, Jutte van der Werff Ten Bosch, Horst von Bernuth, Sebastian Zeissig, Yvonne Zeissig, Andre Franke, Bodo Grimbacher
BACKGROUND: In contrast to adult-onset inflammatory bowel disease (IBD), where many genetic loci have been shown to be involved in complex disease etiology, early-onset IBD (eoIBD) and associated syndromes can sometimes present as monogenic conditions. As a result, the clinical phenotype and ideal disease management in these patients often differ from those in adult-onset IBD. However, due to high costs and the complexity of data analysis, high-throughput screening for genetic causes has not yet become a standard part of the diagnostic work-up of eoIBD patients...
September 19, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28930842/type-4b-hereditary-hemochromatosis-associated-with-a-novel-mutation-in-the-slc40a1-gene-a-case-report-and-a-review-of-the-literature
#9
Wei Zhang, Tingxia Lv, Jian Huang, Xiaojuan Ou
RATIONALE: Hereditary hemochromatosis can be divided into HFE- and non-HFE-related based on genetic mutations in different genes. HFE-related hemochromatosis is the most common inherited genetic disease in European populations but rare in Asia-pacific region. Recently, non-HFE-related hemochromatosis has been reported in patients from the Asian countries. PATIENT CONCERNS: We report the case of a 48-year-old Chinese Han woman who presented with abnormal liver function, diabetes mellitus, hyperferritinemia, and high transferrin saturation, with severe iron overload in parenchymal cells, Kupffer cells, and periportal fibrosis on liver biopsy...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930350/vertical-dielectric-screening-of-few-layer-van-der-waals-semiconductors
#10
Jahyun Koo, Shiyuan Gao, Hoonkyung Lee, Li Yang
Vertical dielectric screening is a fundamental parameter of few-layer van der Waals two-dimensional (2D) semiconductors. However, unlike the widely-accepted wisdom claiming that the vertical dielectric screening is sensitive to the thickness, our first-principles calculation based on the linear response theory (within the weak field limit) reveals that this screening is independent of the thickness and, in fact, it is the same as the corresponding bulk value. This conclusion is verified in a wide range of 2D paraelectric semiconductors, covering narrow-gap ones and wide-gap ones with different crystal symmetries, providing an efficient and reliable way to calculate and predict static dielectric screening of reduced-dimensional materials...
September 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28930185/bioprospecting-for-exopolysaccharides-from-deep-sea-hydrothermal-vent-bacteria-relationship-between-bacterial-diversity-and-chemical-diversity
#11
Christine Delbarre-Ladrat, Marcia Leyva Salas, Corinne Sinquin, Agata Zykwinska, Sylvia Colliec-Jouault
Many bacteria biosynthesize structurally diverse exopolysaccharides (EPS) and excrete them into their surrounding environment. The EPS functional features have found many applications in industries such as cosmetics and pharmaceutics. In particular, some EPS produced by marine bacteria are composed of uronic acids, neutral sugars, and N-acetylhexosamines, and may also bear some functional sulfate groups. This suggests that they can share common structural features with glycosaminoglycans (GAG) like the two EPS (HE800 and GY785) originating from the deep sea...
September 20, 2017: Microorganisms
https://www.readbyqxmd.com/read/28929865/false-positive-screens-and-lung-cancer-risk-in-the-national-lung-screening-trial-implications-for-shared-decision-making
#12
Paul F Pinsky, Christina R Bellinger, David P Miller
Objectives Low-dose computed tomography lung cancer screening has been shown to reduce lung cancer mortality but has a high false-positive rate. The precision medicine approach to low-dose computed tomography screening assesses subjects' benefits versus harms based on their personal lung cancer risk, where harms include false-positive screens and resultant invasive procedures. We assess the relationship between lung cancer risk and the rate of false-positive LDCT screens. Methods The National Lung Screening Trial randomized high-risk subjects to three annual screens with low-dose computed tomography or chest radiographs...
January 1, 2017: Journal of Medical Screening
https://www.readbyqxmd.com/read/28929829/quantitative-sensory-testing-for-assessment-of-somatosensory-function-in-human-oral-mucosa-a-review
#13
Pin Zhou, Yaming Chen, Jinglu Zhang, Kelun Wang, Peter Svensson
OBJECTIVE: This narrative review provides an overview of the quantitative sensory testing (QST) to assess somatosensory function in human oral mucosa. MATERIAL AND METHODS: A literature search was conducted in the PubMed database to identify studies in vivo on human oral mucosa using QST methods. A list of 149 articles was obtained and screened. A total of 36 relevant articles remained and were read in full text. Manual search of the reference lists identified eight additional relevant studies...
September 20, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28929802/a-study-of-outcomes-of-patients-treated-at-a-uk-major-trauma-centre-for-moderate-or-severe-injuries-one-to-three-years-after-injury
#14
Stephen Spreadborough, Kate Radford, Roshan das Nair, Adam Brooks, Miriam Duffy
OBJECTIVE: To assess return to work outcomes of major trauma patients treated at a level 1 UK major trauma centre and evaluate factors associated with improved outcomes. DESIGN: Cross-sectional cohort design. SUBJECTS: In total, 99 patients at one, two or three years post-discharge from a Major Trauma Centre with an injury severity score above 9, in full-time work or education prior to injury, aged 18-70 and discharged between April 2012 and June 2015...
September 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28929661/-evaluation-of-effect-of-supplementing-qi-and-activating-blood-decoction-based-on-combined-model-of-intestinal-out-cardiac-muscle-cells-and-discussion-of-its-mechanism
#15
Ya Geng, Hong-Jun Yang, Yue-Xiang Ma, Jing-Jing Zhang, Yi Zhang, De-Feng Li, Fang-Bo Zhang, Hai-Yu Xu
This research firstly establishes the oxidative damage model of H9c2 induced by H2O2 and screens the concentration range of intestines absorption liquid of Qi benefiting and blood circulation activating formula which possess external myocardium protection function. Then, the thesis chooses 4 dosages to conduct experiments:examining the protection function of intestines absorption liquid of Qi benefiting and blood circulation activating formula on H9c2 to provide reference for clinical prevention and curing of relative heart diseases of oxidative stress injury; as well as examining the H9c2 cardiac muscle cell vigour, cellular morphology, SOD, MDA and other indexes to primarily evaluate and discuss the functional mechanism of intestines absorption liquid of Qi benefiting and blood circulation activating formula...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28929428/studies-on-electrostatic-interactions-within-model-nano-confined-aqueous-environments-of-different-chemical-nature
#16
Joan Manuel Montes de Oca, Cintia A Menéndez, Sebastián R Accordino, David C Malaspina, Gustavo A Appignanesi
We study the potential of mean force for pairs of parallel flat surfaces with attractive electrostatic interactions by employing model systems functionalized with different charged, hydrophobic and hydrophilic groups. We study the way in which the local environment (hydrophobic or hydrophilic moieties) modulates the interaction between the attractive charged groups on the plates by removing or attracting nearby water and thus screening or not the electrostatic interaction. To explicitly account for the role of the solvent and the local hydrophobicity, we also perform studies in vacuo...
September 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28929312/the-effect-of-hand-position-on-perceived-finger-orientation-in-left-and-right-handers
#17
Lindsey E Fraser, Laurence R Harris
In the absence of visual feedback, the perceived orientation of the fingers is systematically biased. In right-handers these biases are asymmetrical between the left and right hands in the horizontal plane and may reflect common functional postures for the two hands. Here we compared finger orientation perception in right- and left-handed participants for both hands, across various hand positions in the horizontal plane. Participants rotated a white line on a screen optically superimposed over their hand to indicate the perceived position of the finger that was rotated to one of seven orientations with the hand either aligned with the body midline, aligned with the shoulder, or displaced by twice the shoulder-to-midline distance from the midline...
September 19, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28929305/auditory-display-for-fluorescence-guided-open-brain-tumor-surgery
#18
David Black, Horst K Hahn, Ron Kikinis, Karin Wårdell, Neda Haj-Hosseini
PURPOSE: Protoporphyrin (PpIX) fluorescence allows discrimination of tumor and normal brain tissue during neurosurgery. A handheld fluorescence (HHF) probe can be used for spectroscopic measurement of 5-ALA-induced PpIX to enable objective detection compared to visual evaluation of fluorescence. However, current technology requires that the surgeon either views the measured values on a screen or employs an assistant to verbally relay the values. An auditory feedback system was developed and evaluated for communicating measured fluorescence intensity values directly to the surgeon...
September 19, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28929175/tusc3-functional-duality-of-a-cancer-gene
#19
REVIEW
Kateřina Vašíčková, Peter Horak, Petr Vaňhara
Two decades ago, following a systematic screening of LOH regions on chromosome 8p22, TUSC3 has been identified as a candidate tumor suppressor gene in ovarian, prostate and pancreatic cancers. Since then, a growing body of evidence documented its clinical importance in various other types of cancers, and first initial insights into its molecular function and phenotypic effects have been gained, though the precise role of TUSC3 in different cancers remains unclear. As a part of the oligosaccharyltransferase complex, TUSC3 localizes to the endoplasmic reticulum and functions in final steps of N-glycosylation of proteins, while its loss evokes the unfolded protein response...
September 19, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28929133/assembling-oppositely-charged-lock-and-key-responsive-colloids-a-mesoscale-analog-of-adaptive-chemistry
#20
Adriana M Mihut, Björn Stenqvist, Mikael Lund, Peter Schurtenberger, Jérôme J Crassous
We have seen a considerable effort in colloid sciences to copy Nature's successful strategies to fabricate complex functional structures through self-assembly. This includes attempts to design colloidal building blocks and their intermolecular interactions, such as creating the colloidal analogs of directional molecular interactions, molecular recognition, host-guest systems, and specific binding. We show that we can use oppositely charged thermoresponsive particles with complementary shapes, such as spherical and bowl-shaped particles, to implement an externally controllable lock-and-key self-assembly mechanism...
September 2017: Science Advances
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