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https://www.readbyqxmd.com/read/29222615/knockdown-expression-of-il-10r%C3%AE-gene-inhibits-prrsv-replication-and-elevates-immune-responses-in-pbmcs-of-tibetan-pig-in-vitro
#1
Yihui Chen, Ye Wang, Kai Zeng, Yun-Feng Lei, Xiao-Hui Chen, San-Cheng Ying, Xue-Bin Lv, Zezhou Wang, Rong Gao
Increase of interleukin-10 (IL-10) induced by Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) infection has been intensely studied to inhibit the anti-viral responses of host pigs. Blockade of expression of IL-10 receptor (IL-10R) by RNA interference (RNAi) may relieve the immunosuppression caused by excessive IL-10 in PRRSV infection. The recombinant short hairpin expressing plasmid targeted to pig IL-10Rα was transfected into peripheral blood mononuclear cells of Tibetan pig (Tp-PBMCs) prior to PRRSV inoculation, then the replication of PRRSV and immune responses in Tp-PBMCs were evaluated...
December 8, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/29222342/regulation-of-crossover-frequency-and-distribution-during-meiotic-recombination
#2
Takamune T Saito, Monica P Colaiácovo
Crossover recombination is essential for generating genetic diversity and promoting accurate chromosome segregation during meiosis. The process of crossover recombination is tightly regulated and is initiated by the formation of programmed meiotic DNA double-strand breaks (DSBs). The number of DSBs is around 10-fold higher than the number of crossovers in most species, because only a limited number of DSBs are repaired as crossovers during meiosis. Moreover, crossovers are not randomly distributed. Most crossovers are located on chromosomal arm regions and both centromeres and telomeres are usually devoid of crossovers...
December 8, 2017: Cold Spring Harbor Symposia on Quantitative Biology
https://www.readbyqxmd.com/read/29221819/cerebellar-alterations-in-a-model-of-down-syndrome-the-role-of-the-dyrk1a-gene
#3
Susana García-Cerro, Verónica Vidal, Sara Lantigua, Maria Teresa Berciano, Miguel Lafarga, Pedro Ramos-Cabrer, Daniel Padro, Noemí Rueda, Carmen Martínez-Cué
Down syndrome (DS) is characterized by a marked reduction in the size of the brain and cerebellum. These changes play an important role in the motor alterations and cognitive disabilities observed in this condition. The Ts65Dn (TS) mouse, the most commonly used model of DS, reflects many DS phenotypes, including alterations in cerebellar morphology. One of the genes that is overexpressed in both individuals with DS and TS mice is DYRK1A/Dyrk1A (dual-specificity tyrosine-(Y)-phosphorylation regulated kinase 1A), which has been implicated in the altered cerebellar structural and functional phenotypes observed in both populations...
December 5, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/29221715/corrigendum-to-aiding-risk-information-learning-through-simulated-experience-arise-using-simulated-outcomes-to-improve-understanding-of-conditional-probabilities-in-prenatal-down-syndrome-screening-patient-educ-counselling-100-october-10-2017-1882-1889
#4
https://www.readbyqxmd.com/read/29219113/diagnostic-role-of-microrna-expression-profile-in-the-prenatal-amniotic-fluid-samples-of-pregnant-women-with-down-syndrome
#5
Emin Karaca, Ayça Aykut, Biray Ertürk, Burak Durmaz, Ahmet Güler, Barış Büke, Ahmet Özgür Yeniel, Ahmet Mete Ergenoğlu, Ferda Özkınay, Mehmet Özeren, Mert Kazandı, Fuat Akercan, Sermet Sağol, Cumhur Gündüz, Özgür Çoğulu
BACKGROUND: Down syndrome is the most common chromosomal anomaly in humans. Down syndrome is the most common chromosomal anomaly in humans affecting people from every race and age. Most of the cases are can be diagnosed by prenatal diagnostic methods in pregnancy. Due to the longtime of culture method applied for prenatal diagnosis, genetic analysis has been developed and developing for rapid diagnosis. For this reason, the effective use of miRNAs was investigated in the rapid analysis of prenatal samples with Down syndrome...
December 8, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/29218069/down-syndrome-genetics-and-cardiogenetics
#6
Vasilica Plaiasu
During the last years, Down syndrome has been the focus of special attention. Down syndrome is a genetic disorder characterized by distinct physical features and some degree of cognitive disability. Patients with Down syndrome also present many other congenital anomalies. The mapping for phenotypes to specific regions of chromosome 21 permits to identify which genes (or small regions) contribute to the phenotypic features of Down syndrome and thus, to understand its pathogenesis. Mainly there are three cytogenetic forms of Down syndrome: free trisomy 21, mosaic trisomy 21 and robertsonian translocation trisomy 21...
September 2017: Mædica
https://www.readbyqxmd.com/read/29218037/wuji-wan-formula-ameliorates-diarrhea-and-disordered-colonic-motility-in-post-inflammation-irritable-bowel-syndrome-rats-by-modulating-the-gut-microbiota
#7
Ying Chen, Shuiming Xiao, Zipeng Gong, Xiaoxin Zhu, Qing Yang, Yujie Li, Shuangrong Gao, Yu Dong, Zhe Shi, Yajie Wang, Xiaogang Weng, Qi Li, Weiyan Cai, Weijie Qiang
Emerging evidence suggests that gut microbiota contribute to the treatment of post-inflammatory irritable bowel syndrome (PI-IBS). Our previous studies have demonstrated that a Chinese formula, Wuji Wan, has the ability to mitigate abdominal pain and diarrhea in PI-IBS rats. However, little is known about the underlying mechanism and whether the gut microbiota mediate the effect of Wuji Wan on PI-IBS. Thus, the aim of this study was to determine whether Wuji Wan mitigated PI-IBS by modifying the gut microbiota...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29217785/down-syndrome-like-acute-megakaryoblastic-leukemia-in-a-patient-with-cornelia-de-lange-syndrome
#8
Yoann Vial, Julie Lachenaud, Alain Verloes, Marianne Besnard, Odile Fenneteau, Elodie Lainey, Alice Marceau-Renaut, Claude Preudhomme, André Baruchel, Hélène Cavé, Séverine Drunat
No abstract text is available yet for this article.
December 7, 2017: Haematologica
https://www.readbyqxmd.com/read/29217690/re-positioning-of-somatic-golgi-apparatus-is-essential-for-the-dendritic-establishment-of-adult-born-hippocampal-neurons
#9
Sneha Rao, Gregory W Kirschen, Joanna Szczurkowska, Adrian Di Antonio, Jia Wang, Shaoyu Ge, Maya Shelly
New dentate granule cells are continuously generated, and integrate into the pre-existing hippocampal network in the adult brain. How an adult-born neuron with initially simple spindle-like morphology develops into a complex dentate granule cell (DGC), consisting of a single apical dendrite with further branches, remains largely unknown. Here, using retroviruses to birth-date and manipulate newborn neurons, we examined initial dendritic formation, and possible underlying mechanisms. We found that GFP-expressing newborn cells began to establish a DGC-like morphology at around 7 days after birth, with a primary dendrite pointing to the molecular layer, but at this stage, with several neurites in the neurogenic zone...
December 6, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29217599/ers-statement-on-obstructive-sleep-disordered-breathing-in-1-to-23-month-old-children
#10
Athanasios G Kaditis, Maria Luz Alonso Alvarez, An Boudewyns, Francois Abel, Emmanouel I Alexopoulos, Refika Ersu, Koen Joosten, Helena Larramona, Silvia Miano, Indra Narang, Hui-Leng Tan, Ha Trang, Marina Tsaoussoglou, Nele Vandenbussche, Maria Pia Villa, Dick Van Waardenburg, Silke Weber, Stijn Verhulst
The present statement was produced by a European Respiratory Society Task Force to summarise the evidence and current practice on the diagnosis and management of obstructive sleep disordered breathing (SDB) in children aged 1-23 months. A systematic literature search was completed and 159 articles were summarised to answer clinically relevant questions. SDB is suspected when symptoms or abnormalities related to upper airway obstruction are identified. Morbidity (pulmonary hypertension, growth delay, behavioural problems) and coexisting conditions (feeding difficulties, recurrent otitis media) may be present...
December 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29216282/sequential-combined-test-second-trimester-maternal-serum-markers-and-circulating-fetal-cells-to-select-women-for-invasive-prenatal-diagnosis
#11
Paolo Guanciali Franchi, Chiara Palka, Elisena Morizio, Giulia Sabbatinelli, Melissa Alfonsi, Donatella Fantasia, Giammaria Sitar, Peter Benn, Giuseppe Calabrese
From January 1st 2013 to August 31st 2016, 24408 pregnant women received the first trimester Combined test and contingently offered second trimester maternal serum screening to identify those women who would most benefit from invasive prenatal diagnosis (IPD). The screening was based on first trimester cut-offs of ≥1:30 (IPD indicated), 1:31 to 1:899 (second trimester screening indicated) and ≤1:900 (no further action), and a second trimester cut-off of ≥1:250. From January 2014, analysis of fetal cells from peripheral maternal blood was also offered to women with positive screening results...
2017: PloS One
https://www.readbyqxmd.com/read/29215943/in-vivo-and-ex-vivo-analyses-of-amyloid-toxicity-in-the-tc1-mouse-model-of-down-syndrome
#12
Gaëlle Naert, Valentine Ferré, Emeline Keller, Amy Slender, Dorota Gibbins, Elizabeth Mc Fisher, Victor Lj Tybulewicz, Tangui Maurice
RATIONALE: The prevalence of Alzheimer's disease is increased in people with Down syndrome. The pathology appears much earlier than in the general population, suggesting a predisposition to develop Alzheimer's disease. Down syndrome results from trisomy of human chromosome 21, leading to overexpression of possible Alzheimer's disease candidate genes, such as amyloid precursor protein gene. To better understand how the Down syndrome context results in increased vulnerability to Alzheimer's disease, we analysed amyloid-β [25-35] peptide toxicity in the Tc1 mouse model of Down syndrome, in which ~75% of protein coding genes are functionally trisomic but, importantly, not amyloid precursor protein...
December 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29214700/adaptive-behaviour-executive-function-and-employment-in-adults-with-down-syndrome
#13
B Tomaszewski, D Fidler, D Talapatra, K Riley
BACKGROUND: Individuals with Down syndrome (DS) demonstrate difficulties with aspects of executive function (EF) and adaptive behaviour across the lifespan. There is a current lack of information regarding how these difficulties relate to employment outcomes in adulthood. This study evaluated the adaptive behaviour and EF profiles of individuals with DS during early adulthood and the association between these areas of functioning and employment status. METHODS: Parents or caregivers of primarily young adults with DS (n = 31; mean chronological age = 25...
January 2018: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/29214307/single-word-speech-intelligibility-in-children-and-adults-with-down-syndrome
#14
Alyssa Wild, Houri K Vorperian, Ray D Kent, Daniel M Bolt, Diane Austin
Purpose: A single-word identification test was used to study speech production in children and adults with Down syndrome (DS) to determine the developmental pattern of speech intelligibility with an emphasis on vowels. Method: Speech recordings were collected from 62 participants with DS aged 4-40 years and 25 typically developing participants aged 4-7 years. Panels of 5 adult lay listeners transcribed the speech recordings orthographically, and their responses were scored in comparison with the speakers' target words...
December 6, 2017: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/29212622/improvement-of-outcomes-for-children-with-down-syndrome
#15
EDITORIAL
Marilyn J Bull
No abstract text is available yet for this article.
December 4, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29212073/age-induced-changes-in-white-brite-and-brown-adipose-depots-a-mini-review
#16
Markus Schosserer, Johannes Grillari, Christian Wolfrum, Marcel Scheideler
Aging is a time-related process of functional decline at organelle, cellular, tissue, and organismal level that ultimately limits life. Cellular senescence is a state of permanent growth arrest in response to stress and one of the major drivers of aging and age-related disorders. Senescent cells accumulate with age, and removal of these cells delays age-related disorders in different tissues and prolongs healthy lifespan. One of the most studied aging mechanisms is the accumulation of reactive oxygen species damage in cells, organs, and organisms over time...
December 7, 2017: Gerontology
https://www.readbyqxmd.com/read/29211168/burden-of-caregivers-of-children-and-adolescents-with-down-syndrome
#17
Alina Lúcia Oliveira Barros, Amanda Oliveira Barros, Geni Leda de Medeiros Barros, Maria Teresa Botti Rodrigues Santos
The aim of this study was to evaluate the profile and burden of caregivers of children/adolescents with and without Down syndrome. The evaluations were performed through questionnaires about the profile and burden of the caregivers (Zarit Burden Interview) and the profile of the children/adolescents. These questionnaires were applied to 168 caregivers. The chi-square test, Fisher's exact test, and analysis of variance were used with a significance level set at a = 5%. Both groups were composed of 84 participants, and the caregivers of the disabled group had a significantly higher percentage of females (p = 0...
November 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/29210918/association-between-physical-activity-and-adiposity-in-adolescents-with-down-syndrome
#18
E Andrew Pitchford, Chelsea Adkins, Rebecca E Hasson, Joseph E Hornyak, Dale A Ulrich
PURPOSE: Obesity is highly prevalent among adolescents with Down syndrome (DS); however, reported associations between body composition and moderate-to-vigorous physical activity (MVPA) have been small and non-significant. The purpose of this study to compare group differences between adolescents with and without DS, including dual-energy x-ray absorptiometry (DXA) measured body composition and accelerometer-measured physical activity, and then examine associations within adolescents with DS...
November 27, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29210907/musculoskeletal-development-in-patients-with-down-syndrome
#19
Corey Dupre, Emily Weidman-Evans
Down syndrome is a chromosomal aneuploidy that results in disruptions in multiple body systems, including musculoskeletal function. Early intervention to focus on bone mineral density, gait correction, agility, balance, and muscle strength is imperative in order for patients to achieve maximum potential.
December 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/29210512/auditory-evoked-potentials-in-children-and-adolescents-with-down-syndrome
#20
Letícia Gregory, Rafael F M Rosa, Paulo R G Zen, Pricila Sleifer
Down syndrome, or trisomy 21, is the most common genetic alteration in humans. The syndrome presents with several features, including hearing loss and changes in the central nervous system, which may affect language development in children and lead to school difficulties. The present study aimed to investigate group differences in the central auditory system by long-latency auditory evoked potentials and cognitive potential. An assessment of 23 children and adolescents with Down syndrome was performed, and a control group composed of 43 children and adolescents without genetic and/or neurological changes was used for comparison...
December 6, 2017: American Journal of Medical Genetics. Part A
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