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https://www.readbyqxmd.com/read/27922168/update-of-the-swiss-guidelines-on-post-treatment-lyme-disease-syndrome
#1
Johannes Nemeth, Enos Bernasconi, Ulrich Heininger, Mohamed Abbas, David Nadal, Carol Strahm, Stefan Erb, Stefan Zimmerli, Hansjakob Furrer, Julie Delaloye, Thierry Kuntzer, Ekkehard Altpeter, Mathias Sturzenegger, Rainer Weber, For The Swiss Society For Infectious Diseases And The Swiss Society For Neurology
Lyme borreliosis is caused by Borrelia burgdorferi sensu lato infection, which responds well to antibiotic therapy in the overwhelming majority of cases. However, despite adequate antibiotic treatment some patients report persisting symptoms which are commonly summarised as post-treatment Lyme disease syndrome (PTLDS). In 2005, the Swiss Society of Infectious Diseases published a case definition for PTLDS. We aimed to review the scientific literature with a special emphasis on the last 10 years, questioning whether the definitions from 2005 are still valid in the light of current knowledge...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27922053/electrophysiological-properties-of-ca1-pyramidal-neurons-along-the-longitudinal-axis-of-the-mouse-hippocampus
#2
Giampaolo Milior, Maria Amalia Di Castro, Livio Pepe' Sciarria, Stefano Garofalo, Igor Branchi, Davide Ragozzino, Cristina Limatola, Laura Maggi
Evidence for different physiological properties along the hippocampal longitudinal axis is emerging. Here, we examined the electrophysiological features of neurons at different dorso-ventral sites of the mouse CA1 hippocampal region. Cell position was defined with respect to longitudinal coordinates of each slice. We measured variations in neuronal excitability, subthreshold membrane properties and neurotransmitter responses along the longitudinal axis. We found that (i) pyramidal cells of the dorsal hippocampus (DH) were less excitable than those of the ventral hippocampus (VH)...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921262/a-new-era-of-disease-modeling-and-drug-discovery-using-induced-pluripotent-stem-cells
#3
REVIEW
Wonhee Suh
In 2006, Shinya Yamanaka first reported that in vitro reprogramming of somatic cells toward pluripotency was achieved by simple induction of specific transcription factors. Induced pluripotent stem cell (iPSC) technology has since revolutionized the ways in which we explore the mechanisms of human diseases and develop therapeutics. Here, I describe the recent advances in human iPSC-based disease modeling and drug discovery and discuss the current challenges. Additionally, I outline potential future applications of human iPSCs in classifying patients based on their response to drugs in clinical trials and elucidating optimal patient-specific therapeutic strategies, which will contribute to reduced attrition rates and the development of precision medicine...
December 5, 2016: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/27920979/transcript-profiling-in-the-milk-of-dairy-ewes-fed-extruded-linseed
#4
Tommaso Giordani, Alberto Vangelisti, Giuseppe Conte, Andrea Serra, Lucia Natali, Annamaria Ranieri, Marcello Mele, Andrea Cavallini
The identification of genes regulating milk secretion by mammary glands is a key-step for exploiting changes in milk composition induced by different diet regimens. Linseed supplementation is a reliable feeding strategy to enhance polyunsaturated fatty acid content in milk fat from sheep, increasing milk quality and nutraceutical value. To investigate the molecular bases of diet induced differences in milk composition, we collected milk from dairy ewes at 90 day of lactation and after 3 weeks of diet supplementation with extruded linseed...
March 2017: Genomics Data
https://www.readbyqxmd.com/read/27920874/leiomyoma-of-deep-soft-tissue-mimicking-calcific-myonecrosis
#5
Valerie A Fitzhugh, Cornelia Wenokor, Kathleen S Beebe, Seena C Aisner
Leiomyoma of deep soft tissue is an unusual entity reported in less than 60 cases in the English literature. The lesion is now accepted as a rare neoplasm. Leiomyomata of deep soft tissue have been divided into 2 groups, those occurring primarily in women in the retroperitoneum, histologically similar to leiomyomata of the uterus, and those occurring equally in both sexes in the somatic deep soft tissues. Irrespective of location, these lesions can demonstrate calcification, and even less commonly ossification...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920779/functional-versatility-of-agy-serine-codons-in-immunoglobulin-variable-region-genes
#6
Thiago Detanico, Matthew Phillips, Lawrence J Wysocki
In systemic autoimmunity, autoantibodies directed against nuclear antigens (Ags) often arise by somatic hypermutation (SHM) that converts AGT and AGC (AGY) Ser codons into Arg codons. This can occur by three different single-base changes. Curiously, AGY Ser codons are far more abundant in complementarity-determining regions (CDRs) of IgV-region genes than expected for random codon use or from species-specific codon frequency data. CDR AGY codons are also more abundant than TCN Ser codons. We show that these trends hold even in cartilaginous fishes...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27920157/two-serk-receptor-like-kinases-interact-with-the-receptor-like-kinase-ems1-in-anther-cell-fate-determination
#7
Zhiyong Li, Yao Wang, Jian Huang, Nagib Ahsan, Gabriel Biener, Joel Paprocki, Jay J Thelen, Valerica Raicu, Dazhong Zhao
Cell signaling pathways mediated by leucine-rich repeat receptor-like kinases (LRR-RLK) are essential for plant growth, development and defense. The EMS1 (EXCESS MICROSPOROCYTES1) LRR-RLK and its small protein ligand TPD1 (TAPETUM DETERMINANT1) play a fundamental role in somatic and reproductive cell differentiation during early anther development in Arabidopsis (Arabidopsis thaliana). However, it is unclear whether other cell surface molecules serve as co-regulators of EMS1. Here, we show that SERK1 (SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE1) and SERK2 LRR-RLKs act redundantly as co-regulatory and physical partners of EMS1...
December 5, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27920101/prevalence-of-lynch-syndrome-and-lynch-like-syndrome-among-patients-with-colorectal-cancer-in-a-japanese-hospital-based-population
#8
Noriyasu Chika, Hidetaka Eguchi, Kensuke Kumamoto, Okihide Suzuki, Keiichiro Ishibashi, Tetsuhiko Tachikawa, Kiwamu Akagi, Jun-Ichi Tamaru, Yasushi Okazaki, Hideyuki Ishida
OBJECTIVE: We investigated the prevalence of Lynch syndrome and Lynch-like syndrome among Japanese colorectal cancer patients, as there have been no credible data from Japan. METHODS: Immunohistochemical analyses for mismatch repair proteins (MLH1, MSH2, MSH6 and PMS2) were carried out in surgically resected, formalin-fixed paraffin-embedded specimens obtained from 1,234 newly diagnosed colorectal cancer patients between March 2005 and April 2014. The presence/absence of the BRAF V600E mutation and hypermethylation of the MLH1 promoter was analyzed where necessary...
December 4, 2016: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27920088/suv4-20-activity-in-the-preimplantation-mouse-embryo-controls-timely-replication
#9
André Eid, Diego Rodriguez-Terrones, Adam Burton, Maria-Elena Torres-Padilla
Extensive chromatin remodeling after fertilization is thought to take place to allow a new developmental program to start. This includes dynamic changes in histone methylation and, in particular, the remodeling of constitutive heterochromatic marks such as histone H4 Lys20 trimethylation (H4K20me3). While the essential function of H4K20me1 in preimplantation mouse embryos is well established, the role of the additional H4K20 methylation states through the action of the SUV4-20 methyltransferases has not been addressed...
December 5, 2016: Genes & Development
https://www.readbyqxmd.com/read/27920058/a-novel-somatic-mutation-achieves-partial-rescue-in-a-child-with-hutchinson-gilford-progeria-syndrome
#10
Daniel Z Bar, Martin F Arlt, Joan F Brazier, Wendy E Norris, Susan E Campbell, Peter Chines, Delphine Larrieu, Stephen P Jackson, Francis S Collins, Thomas W Glover, Leslie B Gordon
BACKGROUND: Hutchinson-Gilford progeria syndrome (HGPS) is a fatal sporadic autosomal dominant premature ageing disease caused by single base mutations that optimise a cryptic splice site within exon 11 of the LMNA gene. The resultant disease-causing protein, progerin, acts as a dominant negative. Disease severity relies partly on progerin levels. METHODS AND RESULTS: We report a novel form of somatic mosaicism, where a child possessed two cell populations with different HGPS disease-producing mutations of the same nucleotide-one producing severe HGPS and one mild HGPS...
December 5, 2016: Journal of Medical Genetics
https://www.readbyqxmd.com/read/27919468/somatic-gnaq-mutation-is-enriched-in-brain-endothelial-cells-in%C3%A2-sturge-weber-syndrome
#11
Lan Huang, Javier A Couto, Anna Pinto, Sanda Alexandrescu, Joseph R Madsen, Arin K Greene, Mustafa Sahin, Joyce Bischoff
BACKGROUND: Sturge-Weber syndrome (SWS) is a rare congenital neurocutaneous disorder characterized by facial and extracraniofacial capillary malformations and capillary-venule malformations in the leptomeninges. A somatic mosaic mutation in GNAQ (c.548G>A; p.R183Q) was found in SWS brain and skin capillary malformations. Our laboratory showed endothelial cells in skin capillary malformations are enriched for the GNAQ mutation. The purpose of this study is to determine whether the GNAQ mutation is also enriched in endothelial cells in affected SWS brain...
October 21, 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/27918527/induction-and-suppression-of-antiviral-rna-interference-by-influenza-a-virus-in-mammalian-cells
#12
Yang Li, Megha Basavappa, Jinfeng Lu, Shuwei Dong, D Alexander Cronkite, John T Prior, Hans-Christian Reinecker, Paul Hertzog, Yanhong Han, Wan-Xiang Li, Sihem Cheloufi, Fedor V Karginov, Shou-Wei Ding, Kate L Jeffrey
Influenza A virus (IAV) causes annual epidemics and occasional pandemics, and is one of the best-characterized human RNA viral pathogens(1). However, a physiologically relevant role for the RNA interference (RNAi) suppressor activity of the IAV non-structural protein 1 (NS1), reported over a decade ago(2), remains unknown(3). Plant and insect viruses have evolved diverse virulence proteins to suppress RNAi as their hosts produce virus-derived small interfering RNAs (siRNAs) that direct specific antiviral defence(4-7) by an RNAi mechanism dependent on the slicing activity of Argonaute proteins (AGOs)(8,9)...
December 5, 2016: Nature Microbiology
https://www.readbyqxmd.com/read/27918485/somatic-cell-nuclear-transfer-followed-by-cripsr-cas9-microinjection-results-in-highly-efficient-genome-editing-in-cloned-pigs
#13
Timothy P Sheets, Chi-Hun Park, Ki-Eun Park, Anne Powell, David M Donovan, Bhanu P Telugu
The domestic pig is an ideal "dual purpose" animal model for agricultural and biomedical research. With the availability of genome editing tools such as clustered regularly interspaced short palindromic repeat (CRISPR) and associated nuclease Cas9 (CRISPR/Cas9), it is now possible to perform site-specific alterations with relative ease, and will likely help realize the potential of this valuable model. In this article, we investigated for the first time a combination of somatic cell nuclear transfer (SCNT) and direct injection of CRISPR/Cas ribonucleoprotein complex targeting GRB10 into the reconstituted oocytes to generate GRB10 ablated Ossabaw fetuses...
December 3, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27917606/generation-of-%C3%AE-lactoglobulin-modified-transgenic-goats-by-homologous-recombination
#14
Hongmei Zhu, Linyong Hu, Jun Liu, Huatao Chen, Chenchen Cui, Yujie Song, Yaping Jin, Yong Zhang
β-Lactoglobulin (BLG) is a dominant allergen present in the milk of goats and other ungulates, although it is not found in human breast milk. Thus, the presence of BLG restricts the consumption of goat's milk by humans. In the present study, we examined whether the disruption of the BLG gene in goats by homologous recombination (HR) reduced BLG content in goat's milk and decreased the allergic response to milk. In one approach, exon 2 of the BLG gene was efficiently targeted using HR with a BLG knockout vector...
December 5, 2016: FEBS Journal
https://www.readbyqxmd.com/read/27917164/longitudinal-study-of-two-irish-dairy-herds-low-numbers-of-shiga-toxin-producing-escherichia-coli-o157-and-o26-super-shedders-identified
#15
Brenda P Murphy, Evonne McCabe, Mary Murphy, James F Buckley, Dan Crowley, Séamus Fanning, Geraldine Duffy
A 12-month longitudinal study was undertaken on two dairy herds to ascertain the Shiga-toxin producing Escherichia coli (STEC) O157 and O26 shedding status of the animals and its impact (if any) on raw milk. Cattle are a recognized reservoir for these organisms with associated public health and environmental implications. Animals shedding E. coli O157 at >10,000 CFU/g of feces have been deemed super-shedders. There is a gap in the knowledge regarding super-shedding of other STEC serogroups. A cohort of 40 lactating cows from herds previously identified as positive for STEC in a national surveillance project were sampled every second month between August, 2013 and July, 2014...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27916884/a-broad-consideration-of-risk-factors-in-pediatric-chronic-pain-where-to-go-from-here
#16
REVIEW
Hannah N McKillop, Gerard A Banez
Pediatric chronic pain is a significant problem associated with substantial functional impairment. A variety of risk factors have been found to be associated with chronic pain in youth. The greatest amount of evidence appears to support that temperament, anxiety, depression, subjective experience of stress, passive coping strategies, sleep problems, other somatic-related problems, and parent and/or family factors are important variables. However, a great deal of this research focuses on a single risk factor or on multiple risk factors in isolation...
November 30, 2016: Children
https://www.readbyqxmd.com/read/27916875/proteinase-activated-receptor-2-is-a-novel-regulator-of-tgf-%C3%AE-signaling-in-pancreatic-cancer
#17
REVIEW
David Witte, Franziska Zeeh, Thomas Gädeken, Frank Gieseler, Bernhard H Rauch, Utz Settmacher, Roland Kaufmann, Hendrik Lehnert, Hendrik Ungefroren
TGF-β has a dual role in tumorigenesis, acting as a tumor suppressor in normal cells and in the early stages of tumor development while promoting carcinogenesis and metastasis in advanced tumor stages. The final outcome of the TGF-β response is determined by cell-autonomous mechanisms and genetic alterations such as genomic instability and somatic mutations, but also by a plethora of external signals derived from the tumor microenvironment, such as cell-to-cell interactions, growth factors and extracellular matrix proteins and proteolytic enzymes...
November 30, 2016: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/27916660/isoform-switch-of-tet1-regulates-dna-demethylation-and-mouse-development
#18
Wenhao Zhang, Weikun Xia, Qiujun Wang, Aaron J Towers, Jiayu Chen, Rui Gao, Yu Zhang, Chia-An Yen, Ah Young Lee, Yuanyuan Li, Chen Zhou, Kaili Liu, Jing Zhang, Tian-Peng Gu, Xiuqi Chen, Zai Chang, Danny Leung, Shaorong Gao, Yong-Hui Jiang, Wei Xie
The methylcytosine oxidase TET proteins play important roles in DNA demethylation and development. However, it remains elusive how exactly they target substrates and execute oxidation. Interestingly, we found that, in mice, the full-length TET1 isoform (TET1e) is restricted to early embryos, embryonic stem cells (ESCs), and primordial germ cells (PGCs). By contrast, a short isoform (TET1s) is preferentially expressed in somatic cells, which lacks the N terminus including the CXXC domain, a DNA-binding module that often recognizes CpG islands (CGIs) where TET1 predominantly occupies...
November 15, 2016: Molecular Cell
https://www.readbyqxmd.com/read/27916557/histone-acetylation-and-histone-deacetylation-in-neuropathic-pain-an-unresolved-puzzle
#19
REVIEW
Ravneet Kaur Khangura, Anjana Bali, Amteshwar Singh Jaggi, Nirmal Singh
Chronic pain is broadly classified into somatic, visceral or neuropathic pain depending upon the location and extent of pain perception. Evidences from different animal studies suggest that inflammatory or neuropathic pain is associated with altered acetylation and deacetylation of histone proteins, which result in abnormal transcription of nociceptive processing genes. There have been a number of studies indicating that nerve injury up-regulates histone deacetylase enzymes, which leads to increased histone deacetylation and induce chronic pain...
December 2, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27915472/pathomechanism-of-interstitial-cystitis-bladder-pain-syndrome-and-mapping-the-heterogeneity-of-disease
#20
REVIEW
Jia-Fong Jhang, Hann-Chorng Kuo
Interstitial cystitis/bladder pain syndrome (IC/BPS) is a heterogeneous syndrome which is usually characterized by urinary frequency, nocturia, and bladder pain. Several pathomechanisms have been proposed, including uroepithelial dysfunction, mast cell activation, neurogenic inflammation, autoimmunity, and occult urinary tract infections. It is possible that an inflammatory process alters regulation of urothelial homeostasis and results in dysfunction of the bladder epithelium. Different phenotypes of IC/BPS have been explored including Hunner and non-Hunner type IC, hypersensitive bladder, and bladder pain both with and without functional somatic syndrome...
November 2016: International Neurourology Journal
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