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https://www.readbyqxmd.com/read/29351405/acute-down-regulation-of-mir-199a-attenuates-sepsis-induced-acute-lung-injury-by-targeting-sirt1
#1
Yang Liu, Hao Guan, Ju-Lei Zhang, Zhao Zheng, Hong-Tao Wang, Ke Tao, Shi-Chao Han, Lin-Lin Su, Dahai Hu
MiR-199a is a novel gene regulator with an important role in inflammation and lung injury. However, its role in the pathogenesis of sepsis-induced acute respiratory distress syndrome (ARDS) is currently unknown. Our study explored the role of miR-199a in sepsis-induced ARDS and its mechanism of action. First, we found that LPS could up-regulate miR-199a in alveolar macrophages. Down-regulation of miR-199a inhibited the up-regulation of inflammatory cytokines in alveolar macrophages and induced the remission of histopathologic changes, the reduction of pro-inflammatory cytokines, and the up-regulation of apoptosis protein expression in an ARDS lung, showing a protective role for miR-199a...
January 10, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29350746/positive-view-and-increased-likely-uptake-of-follow-up-testing-with-analysis-of-cell-free-fetal-dna-as-alternative-to-invasive-testing-among-danish-pregnant-women
#2
Caroline Borregaard Miltoft, Line Rode, Ann Tabor
INTRODUCTION: To investigate the attitude (view, likely uptake and preferred strategy) towards cell-free fetal DNA (cfDNA) testing among pregnant women before a first trimester risk assessment for trisomy 21 (unselected women) and after obtaining a high risk. MATERIAL AND METHODS: Unselected and high-risk women attending first trimester screening (Rigshospitalet, Copenhagen University Hospital) were invited to fill out the questionnaire "Antenatal testing for Down's syndrome" as an online survey...
January 19, 2018: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29350420/over-expression-of-dec1-inhibits-myogenic-differentiation-by-modulating-myog-activity-in-bovine-satellite-cell
#3
Yongzhen Huang, Xinsheng Lai, Linyong Hu, Chuzhao Lei, Xianyong Lan, Chunlei Zhang, Yun Ma, Li Zheng, Yue-Yu Bai, Fengpeng Lin, Hong Chen
Differentiated embryo chondrocyte 1 (DEC1), a member of basic-helix-loop-helix transcription factor Bhlhe40, also called stimulated by retinoic acid 13, STRA13, plays an important role in the regulation of adipogenesis, tumorigenesis, peripheral circadian output, response to hypoxia and development of metabolic syndrome. Previous studies suggested that DEC1 was involved in skeletal muscle development; however, its precise role in myoblast differentiation has not been determined. In the present study, we showed that DEC1 expressed ubiquitously in different bovine tissues and was down-regulated in differentiated bovine satellite cells...
January 19, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29349839/inflammatory-biomarkers-and-intellectual-disability-in-patients-with-down-syndrome
#4
S Manti, M C Cutrupi, C Cuppari, E Ferro, V Dipasquale, G Di Rosa, R Chimenz, M A La Rosa, A Valenti, V Salpietro
BACKGROUND: Intellectual disability (ID) is part of the Down syndrome (DS) phenotypic spectrum, but the exact molecular pathophysiology of ID in individuals with DS is not yet fully understood, with many research hypotheses still unproven. Basing on previous studies (which suggested a possible role of altered inflammatory response in DS-related ID), we assessed the serum levels of a number of inflammatory biomarkers [serum amyloid A (SAA), C-reactive protein (C-RP), high mobility group box-1 (HMGB1)] in a cohort of individuals with DS and healthy controls...
January 19, 2018: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/29348563/disruption-of-cxcr3-function-impedes-the-development-of-sj%C3%A3-gren-s-syndrome-like-xerostomia-in-non-obese-diabetic-mice
#5
Jing Zhou, Qing Yu
The chemokine receptor CXCR3 plays an important role in T cell recruitment in various immune responses and autoimmune diseases. Expression of CXCR3 ligands, including CXCL9, CXCL10, and CXCL11, is elevated in the salivary glands of patients with Sjögren's syndrome (SS). To elucidate whether interaction between CXCR3 and its ligands is required for the development of SS, we administrated an anti-CXCR3 blocking antibody (CXCR3-173) to the non-obese diabetic (NOD) mice, a well-defined model of SS, during the stage prior to disease onset...
January 18, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29347865/the-influence-of-multimorbidity-on-leading-causes-of-death-in-older-adults-with-cognitive-impairment
#6
Nicholas K Schiltz, David F Warner, Jiayang Sun, Kathleen A Smyth, Stefan Gravenstein, Kurt C Stange, Siran M Koroukian
OBJECTIVE: The aim of this study is to evaluate the relationship of leading causes of death with gradients of cognitive impairment and multimorbidity. METHOD: This is a population-based study using data from the linked 1992-2010 Health and Retirement Study and National Death Index ( n = 9,691). Multimorbidity is defined as a combination of chronic conditions, functional limitations, and geriatric syndromes. Regression trees and Random Forest identified which combinations of multimorbidity associated with causes of death...
January 1, 2018: Journal of Aging and Health
https://www.readbyqxmd.com/read/29343249/microrna-124-inhibits-bone-metastasis-of-breast-cancer-by-repressing-interleukin-11
#7
Wei-Luo Cai, Wen-Ding Huang, Bo Li, Tian-Rui Chen, Zhen-Xi Li, Cheng-Long Zhao, Heng-Yu Li, Yan-Mei Wu, Wang-Jun Yan, Jian-Ru Xiao
BACKGROUND: Most patients with breast cancer in advanced stages of the disease suffer from bone metastases which lead to fractures and nerve compression syndromes. microRNA dysregulation is an important event in the metastases of breast cancer to bone. microRNA-124 (miR-124) has been proved to inhibit cancer progression, whereas its effect on bone metastases of breast cancer has not been reported. Therefore, this study aimed to investigate the role and underlying mechanism of miR-124 in bone metastases of breast cancer...
January 17, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29343135/genetic-polymorphisms-in-folate-metabolism-as-risk-for-down-syndrome-in-the-southern-china
#8
Lin Jiajin, Cao Shuyan, Wu Ying, Chen Junxiao, Wang Xiudi
OBJECTIVE: To assess the association between maternal gene polymorphisms of the enzymes involved in folate metabolism and the risk of having a Down syndrome (DS) offspring in southern China mothers. METHODS: Gene polymorphisms in folate metabolizing and the levels of homocysteine (HCY) were analyzed in 84 southern China mothers with DS babies (the case group) and 120 healthy mothers (the control group). Methylenetetrahydrofolate reductase (MTHFR) C677T (rs1801133) and A1298C (rs1801131), methionine synthase (MTR) A2756G (rs1805087), and methionine synthase reductase (MTRR) A66G (rs1801394) were studied...
January 17, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29343130/a-community-based-exercise-program-to-increase-participation-in-physical-activities-among-youth-with-disability-a-feasibility-study
#9
Nora Shields, Roos van den Bos, Kirsty Buhlert-Smith, Luke Prendergast, Nicholas Taylor
PURPOSE: To evaluate the feasibility of a student-mentored community-based exercise program for youth with disability. METHOD: Nineteen youth (nine female; mean age 18 years) with disability (seven cerebral palsy, six Down syndrome, three spina bifida, two autism spectrum disorder, one spinal cord injury) were recruited. Each participant was matched with a student mentor and exercised twice a week for 12 weeks at their local gymnasium. Five domains of feasibility were assessed: demand, implementation, practicality, limited efficacy testing, and acceptability...
January 17, 2018: Disability and Rehabilitation
https://www.readbyqxmd.com/read/29342922/can-egcg-alleviate-symptoms-of-down-syndrome-by-altering-proteolytic-activity
#10
REVIEW
Marzena Wyganowska-Świątkowska, Maja Matthews-Kozanecka, Teresa Matthews-Brzozowska, Ewa Skrzypczak-Jankun, Jerzy Jankun
Down syndrome (DS), also known as "trisomy 21", is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. Silencing these extra genes is beyond existing technology and seems to be impractical. A number of pharmacologic options have been proposed to change the quality of life and lifespan of individuals with DS. It was reported that treatment with epigallocatechin gallate (EGCG) improves cognitive performance in animal models and in humans, suggesting that EGCG may alleviate symptoms of DS...
January 15, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29342244/gli2-rescues-delays-in-brain-development-induced-by-kif3a-dysfunction
#11
Jia-Long Chen, Chia-Hsiang Chang, Jin-Wu Tsai
The primary cilium in neural stem cells plays distinct roles in different stages during cortical development. Ciliary dysfunctions in human (i.e., ciliopathy) cause developmental defects in multiple organs, including brain developmental delays, which lead to intellectual disabilities and cognitive deficits. However, effective treatment to this devastating developmental disorder is still lacking. Here, we first investigated the effects of ciliopathy on neural stem cells by knocking down Kif3a, a kinesin II motor required for ciliogenesis, in the neurogenic stage of cortical development by in utero electroporation of mouse embryos...
January 12, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29341296/the-five-year-survival-of-children-with-down-syndrome-in-norway-1994-2009-differed-by-associated-congenital-heart-defects-and-extracardiac-malformations
#12
Kristoffer Brodwall, Gottfried Greve, Elisabeth Leirgul, Kari Klungsøyr, Henrik Holmstrøm, Stein Emil Vollset, Nina Øyen
AIM: We investigated the prevalence of Down syndrome in a nationwide birth cohort, focusing on congenital heart defects, their associations with extracardiac malformations, and survival. METHODS: National registers were used to identify Norwegian births (1994-2009) and deaths (1994-2014) and updated with hospital diagnoses. We estimated birth defect frequencies in Down syndrome and the general population, the association between heart defects and extracardiac malformations and hazard ratios for death from different combinations of heart defects and extracardiac malformations...
January 17, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29340776/ectopic-cushing-s-syndrome-secondary-to-olfactory-neuroblastoma
#13
Kenny Yu, Federico Roncaroli, Tara Kearney, David Ewins, Deepa Beeharry, Thomas Naylor, David Ray, Rajiv Bhalla, Kanna Gnanalingham
We present the case of a patient with Cushing's syndrome secondary to ectopic ACTH secretion. A MR of the head showed a left-sided nasal mass extending down from the cribriform plate. The patient underwent endoscopic resection with nearly complete removal of the mass. Histological examination showed an ACTH-secreting olfactory neuroblastoma (ONB). The patient's cortisol levels returned to normal range after surgery and have remained normal for over a year. ONB is a rare cause for ectopic ACTH secretion. This case highlights the diagnostic and management difficulties in patients with ectopic ACTH secretion, and provides a brief review of ONB...
January 17, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29339628/downregulation-of-long-non-coding-rna-kcnq1ot1-an-important-mechanism-of-arsenic-trioxide-induced-long-qt-syndrome
#14
Yanan Jiang, Weijie Du, Qun Chu, Ying Qin, Gulnara Tuguzbaeva, Hui Wang, Anqi Li, Guiyang Li, Yanyao Li, Lu Chai, Er Yue, Xi Sun, Zhiguo Wang, Valentin Pavlov, Baofeng Yang, Yunlong Bai
BACKGROUND/AIMS: Arsenic trioxide (ATO) is a known anti-acute promyelocytic leukemia (APL) reagent, whose clinical applications are limited by its serious cardiac toxicity and fatal adverse effects, such as sudden cardiac death resulting from long QT syndrome (LQTS). The mechanisms of cardiac arrhythmia due to ATO exposure still need to be elucidated. Long non-coding RNAs (lncRNAs) are emerging as major regulators of various pathophysiological processes. This study aimed to explore the involvement of lncRNAs in ATO-induced LQTS in vivo and in vitro...
January 15, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29339515/mers-cov-and-h5n1-influenza-virus-antagonize-antigen-presentation-by-altering-the-epigenetic-landscape
#15
Vineet D Menachery, Alexandra Schäfer, Kristin E Burnum-Johnson, Hugh D Mitchell, Amie J Eisfeld, Kevin B Walters, Carrie D Nicora, Samuel O Purvine, Cameron P Casey, Matthew E Monroe, Karl K Weitz, Kelly G Stratton, Bobbie-Jo M Webb-Robertson, Lisa E Gralinski, Thomas O Metz, Richard D Smith, Katrina M Waters, Amy C Sims, Yoshihiro Kawaoka, Ralph S Baric
Convergent evolution dictates that diverse groups of viruses will target both similar and distinct host pathways to manipulate the immune response and improve infection. In this study, we sought to leverage this uneven viral antagonism to identify critical host factors that govern disease outcome. Utilizing a systems-based approach, we examined differential regulation of IFN-γ-dependent genes following infection with robust respiratory viruses including influenza viruses [A/influenza/Vietnam/1203/2004 (H5N1-VN1203) and A/influenza/California/04/2009 (H1N1-CA04)] and coronaviruses [severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome CoV (MERS-CoV)]...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339197/differential-insulin-and-steroidogenic-signaling-in-insulin-resistant-and-non-insulin-resistant-human-luteinized-granulosa-cells-a-study-in-pcos-patients
#16
Muskaan Belani, Abhilash Deo, Preeti Shah, Manish Banker, Pawan Singal, Sarita Gupta
Insulin resistance (IR) is one of the significant aberrations in polycystic ovarian syndrome (PCOS), however is only observed in 70%-80% of obese PCOS and 20%-25% of lean PCOS. Hyperinsulinemia accompanies PCOS-IR along with hyperandrogenemia against normal insulin and androgen levels in PCOS-non insulin resistance (NIR). This could possibly be due to defects in the downstream signaling pathways. The study thus aims to unravel insulin and steroidogenic signaling pathways in luteinized granulosa cells isolated from PCOS -IR and NIR vs matched controls...
January 12, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29338740/is-sweat-testing-for-cystic-fibrosis-feasible-in-patients-with-down-syndrome
#17
Katharina Ruf, Antonia Demerath, Helge Hebestreit, Steffen Kunzmann
BACKGROUND: Recurrent airway infections are common in patients with Down's syndrome (DS). Hence, ruling out Cystic Fibrosis (CF) in these patients is often required. In the past, the value of sweat testing - the gold standard to diagnose CF - has been questioned in DS as false positive results have been reported. However, these reports are based on measurements of sweat osmolality or sodium concentrations, not chloride concentrations. This study analyses sweat secretion rate and chloride concentration in sweat samples of patients with DS in comparison to healthy controls...
January 16, 2018: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29336386/retrospective-study-of-complete-atrioventricular-canal-defects-anesthetic-and-perioperative-challenges
#18
Aniruddha Ramesh Janai, Wilfried Bellinghausen, Edwin Turton, Carmine Bevilacqua, Waseem Zakhary, Martin Kostelka, Farhad Bakhtiary, Joerg Hambsch, Ingo Daehnert, Florian Loeffelbein, Joerg Ender
OBJECTIVE: The objective of this study was to highlight anesthetic and perioperative management and the outcomes of infants with complete atrioventricular (AV) canal defects. DESIGN: This retrospective descriptive study included children who underwent staged and primary biventricular repair for complete AV canal defects from 1999 to 2013. SETTING: A single-center study at a university affiliated heart center. PARTICIPANTS: One hundred and fifty-seven patients with a mean age at surgery of 125 ± 56...
January 2018: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/29335257/staphylococcal-superantigens-use-lama2-as-a-coreceptor-to-activate-t-cells
#19
Zhigang Li, Joseph J Zeppa, Mark A Hancock, John K McCormick, Terence M Doherty, Geoffrey N Hendy, Joaquín Madrenas
Canonical Ag-dependent TCR signaling relies on activation of the src-family tyrosine kinase LCK. However, staphylococcal superantigens can trigger TCR signaling by activating an alternative pathway that is independent of LCK and utilizes a Gα11-containing G protein-coupled receptor (GPCR) leading to PLCβ activation. The molecules linking the superantigen to GPCR signaling are unknown. Using the ligand-receptor capture technology LRC-TriCEPS, we identified LAMA2, the α2 subunit of the extracellular matrix protein laminin, as the coreceptor for staphylococcal superantigens...
January 15, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29333085/next-generation-sequencing-expression-profiling-of-mitochondrial-subunits-in-men-with-klinefelter-syndrome
#20
Michele Salemi, Laura Cimino, Marika Marino, Rossella Cannarella, Rosita A Condorelli, Corrado Romano, Sandro La Vignera, Aldo E Calogero
Objectives: Klinefelter syndrome (KS) is one of the most common sex-chromosome disorders as it affects up to 1 in every 600-1000 newborn males. Men with KS carry one extra X chromosome and they usually present a 47,XXY karyotype, but less frequent variants have also been reported in literature. KS typical symptoms include tall stature, gynecomastia, broad hips, hypogonadism and absent spermatogenesis. The syndrome is also related to a wide range of cognitive deficits, among which language-based learning disabilities and verbal cognition impairment are frequently diagnosed...
2018: International Journal of Medical Sciences
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