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https://www.readbyqxmd.com/read/28524640/segmental-colonic-dilation-is-associated-with-premature-termination-of-high-amplitude-propagating-contractions-in-children-with-intractable-functional-constipation
#1
I J N Koppen, B P Thompson, E J Ambeba, V A Lane, D G Bates, P C Minneci, K J Deans, M A Levitt, R J Wood, M A Benninga, C Di Lorenzo, D Yacob
BACKGROUND: Colonic dilation is common in children with intractable functional constipation (FC). Our aim was to describe the association between segmental colonic dilation and colonic dysmotility in children with FC. METHODS: We performed a retrospective study on 30 children with intractable FC (according to the Rome III criteria) who had undergone colonic manometry and contrast enema within a 12-month time period. Colonic diameter was measured at 5 cm intervals from the anal verge up to the splenic flexure...
May 19, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28521820/destabilization-of-the-twist1-e12-complex-dimerization-following-the-r154p-point-mutation-of-twist1-an-in-silico-approach
#2
Charlotte Bouard, Raphael Terreux, Agnès Tissier, Laurent Jacqueroud, Arnaud Vigneron, Stéphane Ansieau, Alain Puisieux, Léa Payen
BACKGROUND: The bHLH transcription factor TWIST1 plays a key role in the embryonic development and in tumorigenesis. Some loss-of-function mutations of the TWIST1 gene have been shown to cause an autosomal dominant craniosynostosis, known as the Saethre-Chotzen syndrome (SCS). Although the functional impacts of many TWIST1 mutations have been experimentally reported, little is known on the molecular mechanisms underlying their loss-of-function. In a previous study, we highlighted the predictive value of in silico molecular dynamics (MD) simulations in deciphering the molecular function of TWIST1 residues...
May 18, 2017: BMC Structural Biology
https://www.readbyqxmd.com/read/28521021/satellite-cell-mediated-breast-muscle-regeneration-decreases-with-broiler-size
#3
M R Daughtry, E Berio, Z Shen, E J R Suess, N Shah, A E Geiger, E R Berguson, R A Dalloul, M E Persia, H Shi, D E Gerrard
Satellite cells (SCs) reside between the sarcolemma and basal lamina of muscle fibers and are the primary contributor of DNA for post-hatch muscle growth and repair. Alterations in SC content or properties by intrinsic and extrinsic factors can have detrimental effects on muscle health and function, and ultimately meat quality. We hypothesized that disrupted SC homeostasis may account in part for the increased breast myopathies observed in growing broilers. To test this hypothesis, we selected broilers with different body weights at comparable ages and studied SC characteristics in vitro and in vivo...
May 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/28515539/why-does-positive-mental-health-buffer-against-psychopathology-an-exploratory-study-on-self-compassion-as-a-resilience-mechanism-and-adaptive-emotion-regulation-strategy
#4
Hester R Trompetter, Elian de Kleine, Ernst T Bohlmeijer
Growing evidence suggests that positive mental health or wellbeing protects against psychopathology. How and why those who flourish derive these resilient outcomes is, however, unknown. This exploratory study investigated if self-compassion, as it continuously provides a friendly, accepting and situational context for negative experiences, functions as a resilience mechanism and adaptive emotion regulation strategy that protects against psychopathology for those with high levels of positive mental health. Participants from the general population (n = 349) provided measures at one time-point on positive mental health (MHC-SF), self-compassion (SCS-SF), psychopathology (HADS) and negative affect (mDES)...
2017: Cognitive Therapy and Research
https://www.readbyqxmd.com/read/28513598/yap-taz-link-cell-mechanics-to-notch-signalling-to-control-epidermal-stem-cell-fate
#5
Antonio Totaro, Martina Castellan, Giusy Battilana, Francesca Zanconato, Luca Azzolin, Stefano Giulitti, Michelangelo Cordenonsi, Stefano Piccolo
How the behaviour of somatic stem cells (SCs) is influenced by mechanical signals remains a black-box in cell biology. Here we show that YAP/TAZ regulation by cell shape and rigidity of the extracellular matrix (ECM) dictates a pivotal SC decision: to remain undifferentiated and grow, or to activate a terminal differentiation programme. Notably, mechano-activation of YAP/TAZ promotes epidermal stemness by inhibition of Notch signalling, a key factor for epidermal differentiation. Conversely, YAP/TAZ inhibition by low mechanical forces induces Notch signalling and loss of SC traits...
May 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28512649/purification-and-characterization-of-schwann-cells-from-adult-human-skin-and-nerve
#6
Jo Anne Stratton, Ranjan Kumar, Sarthak Sinha, Prajay Shah, Morgan Stykel, Yuval Shapira, Rajiv Midha, Jeff Biernaskie
Despite its modest capacity for regeneration, peripheral nervous system injury often results in significant long-term disability. Supplementing peripheral nervous system injury with autologous Schwann cells (SCs) may serve to rejuvenate the postinjury environment to enhance regeneration and ultimately improve functional outcomes. However, human nerve-derived SC (hN-SC) collection procedures require invasive surgical resection. Here, we describe the characterization of SCs from adult human skin (hSk-SCs) of four male donors ranging between 27 and 46 years old...
May 2017: ENeuro
https://www.readbyqxmd.com/read/28512561/bone-marrow-homing-and-engraftment-defects-of-human-hematopoietic-stem-and-progenitor-cells
#7
REVIEW
Giovanni Caocci, Marianna Greco, Giorgio La Nasa
Homing of hematopoietic stem cells (HSC) to their microenvironment niches in the bone marrow is a complex process with a critical role in repopulation of the bone marrow after transplantation. This active process allows for migration of HSC from peripheral blood and their successful anchoring in bone marrow before proliferation. The process of engraftment starts with the onset of proliferation and must, therefore, be functionally dissociated from the former process. In this overview, we analyze the characteristics of stem cells (SCs) with particular emphasis on their plasticity and ability to find their way home to the bone marrow...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28511287/generation-and-characterization-of-highly-purified-canine-schwann-cells-from-spinal-nerve-dorsal-roots-as-potential-new-candidates-for-transplantation-strategies
#8
Nicole Steffensen, Annika Lehmbecker, Ingo Gerhauser, Yimin Wang, Regina Carlson, Andrea Tipold, Wolfgang Baumgärtner, Veronika M Stein
Schwann cells (SCs) are promising candidates for transplantation-strategies in the central nervous system by promoting axonal regeneration. The dog represents a translational model for human spinal cord injury (SCI) for studies with new repair strategies after intervertebral disk herniation (IVDH). To overcome the necessity for an additional surgical procedure, for the first time a protocol for isolation, and purification of canine SCs from spinal-nerve-biopsies during standard hemilaminectomy in IVDH affected paraplegic dogs for potential transplantation was developed...
May 16, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28510329/isolation-of-stem-cells-and-progenitors-from-mouse-epidermis
#9
Lana Kostic, Egor Sedov, Despina Soteriou, Yahav Yosefzon, Yaron Fuchs
The epidermis consists of several distinct compartments including the interfollicular epidermis (IFE), sweat glands, sebaceous glands (SGs), and the hair follicle (HF). While the IFE and SGs are in a constant state of self-renewal, the HF cycles between phases of growth, destruction, and rest. The hair follicle stem cells (HFSCs) that fuel this perpetual cycle have been well described and are located in a niche termed the bulge. These bulge SCs express markers such as CD34 and Keratin 15 (K15), enabling the isolation of these cells...
May 16, 2017: Current Protocols in Stem Cell Biology
https://www.readbyqxmd.com/read/28507946/conditioned-medium-of-wharton-s-jelly-derived-stem-cells-can-enhance-the-cartilage-specific-genes-expression-by-chondrocytes-in-monolayer-and-mass-culture-systems
#10
Maryam Hassan Famian, Soheila Montazer Saheb, Azadeh Montaseri
Purpose: Mesenchymal stem cells (MSCs) have been introduced for cell therapy strategies in osteoarthritis (OA). Despite of their capacity for differentiation into chondrocyte, there are some evidences about their life-threatening problem after transplantation. So, some researchers shifted on the application of stem cells conditioned medium. The goal of this study is to evaluate whether Wharton's jelly derived stem cell conditioned medium (WJSCs-CM) can enhance the gene expression profile by chondrocytes in monolayer and mass culture systems...
April 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28507187/measuring-disease-exacerbation-and-flares-in-rheumatoid-arthritis-comparison-of-commonly-used-disease-activity-indices-and-individual-measures
#11
Martijn A H Oude Voshaar, Marjan Ghiti Moghadam, Harald E Vonkeman, Peter M Ten Klooster, Dirkjan van Schaardenburg, Janneke Tekstra, Henk Visser, Mart A F J van de Laar, Tim L Jansen
OBJECTIVE: To evaluate and compare the utility of commonly used outcome measures for assessing disease exacerbation or flare in patients with rheumatoid arthritis (RA). METHODS: Data from the Dutch Potential Optimalisation of (Expediency) and Effectiveness of Tumor necrosis factor-α blockers (POET) study, in which 462 patients discontinued their tumor necrosis factor-α inhibitor, were used. The ability of different measures to discriminate between those with and without physician-reported flare or medication escalation at the 3-month visit (T2) was evaluated by calculating effect size (ES) statistics...
May 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28505146/upregulated-autophagy-in-sertoli-cells-of-ethanol-treated-rats-is-associated-with-induction-of-inducible-nitric-oxide-synthase-inos-androgen-receptor-suppression-and-germ-cell-apoptosis
#12
Akio Horibe, Nabil Eid, Yuko Ito, Hitomi Hamaoka, Yoshihisa Tanaka, Yoichi Kondo
This study was conducted to investigate the autophagic response of Sertoli cells (SCs) to acute ethanol toxicity using in vivo and in vitro models. Adult Wistar rats were intraperitoneally injected with either 5 g/kg ethanol or phosphate-buffered saline (for the control group) and sacrificed 0, 3, 6 and 24 h after injection. Compared to the control group, enhanced germ cell apoptosis was observed in the ethanol-treated rats (ETRs) in association with upregulation of iNOS and reduced expression of androgen receptor protein levels in SCs, which were resistant to apoptosis...
May 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28505030/association-between-neurotrophic-factor-expression-and-pain-related-behavior-induced-by-nucleus-pulposus-applied-to-rat-nerve-root
#13
Shinobu Seki, Miho Sekiguchi, Shin-Ichi Konno
STUDY DESIGN: An experimental animal study OBJECTIVE.: To investigate the relationship between pain-related behavior and the expression of neurotrophic factors in the dorsal root ganglion (DRG) and spinal cord (SC) using a nucleus pulposus (NP) rat model. SUMMARY OF BACKGROUND DATA: Neurotrophic factors are released from activated glial cells and are associated with pain-related behavior. Nerve growth factor (NGF) is a neurotrophic factor that is induced by inflammation...
April 12, 2017: Spine
https://www.readbyqxmd.com/read/28505029/treatment-options-for-failed-back-surgery-syndrome-fbss-patients-with-refractory-chronic-pain-an-evidence-based-approach
#14
Kasra Amirdelfan, Lynn Webster, Lawrence Poree, Vishad Sukul, Porter McRoberts
STUDY DESIGN: A significant number of lumbar post-surgical patients continue to suffer persistent pain and limited function and are termed to have "Failed back surgery syndrome" (FBSS). This review evaluates clinical trial data for the treatment of FBSS patients. OBJECTIVE: Using an evidence-based approach to evaluate FBSS treatments will assist clinicians in choosing the most effective options for FBSS patients. Furthermore, reducing the utilization of less effective therapies may result in substantial financial savings for this patient population...
April 12, 2017: Spine
https://www.readbyqxmd.com/read/28504724/single-cell-transcriptomics-uncovers-distinct-molecular-signatures-of-stem-cells-in-chronic-myeloid-leukemia
#15
Alice Giustacchini, Supat Thongjuea, Nikolaos Barkas, Petter S Woll, Benjamin J Povinelli, Christopher A G Booth, Paul Sopp, Ruggiero Norfo, Alba Rodriguez-Meira, Neil Ashley, Lauren Jamieson, Paresh Vyas, Kristina Anderson, Åsa Segerstolpe, Hong Qian, Ulla Olsson-Strömberg, Satu Mustjoki, Rickard Sandberg, Sten Eirik W Jacobsen, Adam J Mead
Recent advances in single-cell transcriptomics are ideally placed to unravel intratumoral heterogeneity and selective resistance of cancer stem cell (SC) subpopulations to molecularly targeted cancer therapies. However, current single-cell RNA-sequencing approaches lack the sensitivity required to reliably detect somatic mutations. We developed a method that combines high-sensitivity mutation detection with whole-transcriptome analysis of the same single cell. We applied this technique to analyze more than 2,000 SCs from patients with chronic myeloid leukemia (CML) throughout the disease course, revealing heterogeneity of CML-SCs, including the identification of a subgroup of CML-SCs with a distinct molecular signature that selectively persisted during prolonged therapy...
May 15, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28504077/routine-shunting-during-carotid-endarterectomy-in-patients-with-acute-watershed-stroke
#16
Paolo Perini, Domenico Marco Bonifati, Sebastiano Tasselli, Filippo Sogaro
AIM: To evaluate the protective role of routine shunting in patients with acute watershed stroke (WS) undergoing carotid endarterectomy (CEA). METHODS: A total of 138 patients with symptomatic carotid stenosis (SCS) who underwent CEA after acute ischemic stroke from March 2008 to March 2015 were included in this study. Transient ischemic attacks were excluded. These patients were divided into 2 groups according to the topographic pattern of the stroke on magnetic resonance imaging: group 1, territorial strokes (TS) caused by emboli of carotid origin, and group 2, WS caused by a hemodynamic mechanism related to an SCS...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28502626/organic-matter-in-surface-sediments-from-the-gulf-of-mexico-and-south-china-sea-compositions-distributions-and-sources
#17
Cuiping Wang, Weili Jia, Dong Wang, Zhiguang Song
Sediments from the Gulf of Mexico (GOM) and the South China Sea (SCS) were analyzed. The low δ(13) C values of pentamethylicosane (PMIs) and fatty acids (-81.3 to -85.2‰) were found in only the S-1 sample collected from the GOM, indicating that methanogenic archaea associated with gas hydrate formation contributed to the sediment organic matter. Principle component analysis of fatty acids suggested that similar microbial biomass was found in the S-1, S-9, O-3 and O-5 samples. However, a comparison of the alkanes, fatty acids, and alcohols indicated that the percentage of n-alkan-2-ols in the S-1 sample from the GOM was the highest, while n-alkanes and n-fatty acids were the highest percentages in other samples from the GOM and SCS...
May 11, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28501464/the-connection-between-nursing-diagnosis-and-the-use-of-healthcare-resources
#18
María Consuelo Company-Sancho, Marcos Estupiñán-Ramírez, Hilda Sánchez-Janáriz, Rita Tristancho-Ajamil
AIM: The health service invests up to 75% of its resources on chronic care where the focus should be on caring rather than curing. Nursing staff focuses their work on such care. Care requires being redorded in health histories through the standardized languages. These records enable useful analyses to organisational and healthcare decision-making. Our proposal is to know the association of between nursing diagnosis and a higher total expenditure on health. METHOD: An observational cross-sectional analytical study was performed based on data from electronic health records in Primary Care (Drago-AP), hospital discharges (CMBD-AH) and prescriptions (REC-SCS) of patients over 50 from 2012-2013 in the Canary Islands...
May 10, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/28501205/an-integrated-strategy-for-the-quantitative-analysis-of-endogenous-proteins-a-case-of-gender-dependent-expression-of-p450-enzymes-in-rat-liver-microsome
#19
Yuhao Shao, Xiaoxi Yin, Dian Kang, Boyu Shen, Zhangpei Zhu, Xinuo Li, Haofeng Li, Lin Xie, Guangji Wang, Yan Liang
Liquid chromatography mass spectrometry based methods provide powerful tools for protein analysis. Cytochromes P450 (CYPs), the most important drug metabolic enzymes, always exhibit sex-dependent expression patterns and metabolic activities. To date, analysis of CYPs based on mass spectrometry is still facing critical technical challenges due to the complexity and diversity of CYP isoforms besides lack of corresponding standards. The aim of present work consisted in developing a label-free qualitative and quantitative strategy for endogenous proteins, and then applying to the gender-difference study for CYPs in rat liver microsomes (RLMs)...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28500825/which-type-2-diabetes-mellitus-patients-should-be-screened-for-subclinical-cushing-s-syndrome
#20
Güven Barış Cansu, Sevgi Atılgan, Mustafa Kemal Balcı, Ramazan Sarı, Sebahat Özdem, Hasan Ali Altunbaş
OBJECTIVE: Diabetes or impaired glucose tolerance are common in patients with Cushing's syndrome (CS). In this study we investigated the incidence of subclinical Cushing's syndrome (SCS) in type 2 diabetic patients with poor and good metabolic control and the relationship between blood glucose and cortisol levels. DESIGN: A total of 400 type 2 diabetes mellitus (T2DM) patients (Group A, HbA1c ≥8%, n=250; Group B, HbA1c ≤6.5%, n=150) were included in the study...
January 2017: Hormones: International Journal of Endocrinology and Metabolism
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