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https://www.readbyqxmd.com/read/28108486/regulation-of-the-immune-response-by-tgf-%C3%AE-from-conception-to-autoimmunity-and-infection
#1
Shomyseh Sanjabi, Soyoung A Oh, Ming O Li
Transforming growth factor β (TGF-β) is a pleiotropic cytokine involved in both suppressive and inflammatory immune responses. After 30 years of intense study, we have only begun to elucidate how TGF-β alters immunity under various conditions. Under steady-state conditions, TGF-β regulates thymic T-cell selection and maintains homeostasis of the naïve T-cell pool. TGF-β inhibits cytotoxic T lymphocyte (CTL), Th1-, and Th2-cell differentiation while promoting peripheral (p)Treg-, Th17-, Th9-, and Tfh-cell generation, and T-cell tissue residence in response to immune challenges...
January 20, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28108326/neuromolecular-correlates-of-cooperation-and-conflict-during-territory-defense-in-a-cichlid-fish
#2
Chelsea A Weitekamp, Hans A Hofmann
Cooperative behavior is widespread among animals, yet the neural mechanisms have not been studied in detail. We examined cooperative territory defense behavior and associated neural activity in candidate forebrain regions in the cichlid fish, Astatotilapia burtoni. We find that a territorial male neighbor will engage in territory defense dependent on the perceived threat of the intruder. The resident male, on the other hand, engages in defense based on the size and behavior of his partner, the neighbor. In the neighbor, we find that an index of engagement correlates with neural activity in the putative homolog of the mammalian basolateral amygdala and in the preoptic area, as well as in preoptic dopaminergic neurons...
January 17, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28108310/autophagic-dysregulation-in-doxorubicin-cardiomyopathy
#3
REVIEW
Jordan J Bartlett, Purvi C Trivedi, Thomas Pulinilkunnil
Doxorubicin (DOX)-induced cardiotoxicity has been a well-known phenomenon to clinicians and scientists for decades; however, molecular mechanisms underlying DOX cardiotoxicity are still being uncovered. Although prior research has mostly implicated disruptive events in the nucleus and mitochondria to be contributing to DOX cardiomyopathy, recent discoveries in the cellular waste management process, autophagy, have highlighted the role of the lysosome, an organelle central to autophagy, in this pathology. Indeed, dysregulation of lysosomal autophagy is observed in pre-clinical models of DOX cardiotoxicity...
January 17, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28108204/the-dietary-approaches-to-stop-hypertension-diet-cognitive-function-and-cognitive-decline-in-american-older-women
#4
Agnes A M Berendsen, Jae H Kang, Ondine van de Rest, Edith J M Feskens, Lisette C P G M de Groot, Francine Grodstein
OBJECTIVES: To examine the association between long-term adherence to the Dietary Approaches to Stop Hypertension (DASH) diet with cognitive function and decline in older American women. DESIGN: Prospective cohort study. SETTING: The Nurses' Health Study, a cohort of registered nurses residing in 11 US states. PARTICIPANTS: A total of 16,144 women from the Nurses' Health Study, aged ≥70 years, who underwent cognitive testing a total of 4 times by telephone from 1995 to 2001 (baseline), with multiple dietary assessments between 1984 and the first cognitive examination...
January 17, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28107748/tracing-the-sources-and-cycling-of-phosphorus-in-river-sediments-using-oxygen-isotopes-methodological-adaptations-and-first-results-from-a-case-study-in-france
#5
Chiara Pistocchi, Federica Tamburini, Gerard Gruau, André Ferhi, Dominique Trevisan, Jean-Marcel Dorioz
An essential aspect of eutrophication studies is to trace the ultimate origin of phosphate ions (P-PO4) associated with the solid phase of river sediments, as certain processes can make these ions available for algae. However, this is not a straightforward task because of the diversity of allochthonous and autochthonous sources that can supply P-PO4 to river sediments as well as the existence of in-stream processes that can change the speciation of these inputs and obscure the original sources. Here, we present the results of a study designed to explore the potentials, limitations and conditions for the use of the oxygen isotope composition of phosphate (δ(18)Op) extracted from river sediments for this type of tracing...
December 26, 2016: Water Research
https://www.readbyqxmd.com/read/28107457/novel-analysis-of-immune-cells-from-nasal-microbiopsy-demonstrates-reliable-reproducible-data-for-immune-populations-and-superior-cytokine-detection-compared-to-nasal-wash
#6
Simon P Jochems, Katherine Piddock, Jamie Rylance, Hugh Adler, Beatriz F Carniel, Andrea Collins, Jenna F Gritzfeld, Carole Hancock, Helen Hill, Jesus Reiné, Alexandra Seddon, Carla Solórzano, Syba Sunny, Ashleigh Trimble, Angela D Wright, Seher Zaidi, Stephen B Gordon, Daniela M Ferreira
The morbidity and mortality related to respiratory tract diseases is enormous, with hundreds of millions of individuals afflicted and four million people dying each year. Understanding the immunological processes in the mucosa that govern outcome following pathogenic encounter could lead to novel therapies. There is a need to study responses at mucosal surfaces in humans for two reasons: (i) Immunological findings in mice, or other animals, often fail to translate to humans. (ii) Compartmentalization of the immune system dictates a need to study sites where pathogens reside...
2017: PloS One
https://www.readbyqxmd.com/read/28106178/exploring-the-relevance-of-gas-phase-structures-to-biology-cold-ion-spectroscopy-of-the-decapeptide-neurokinin-a
#7
A Y Pereverzev, O V Boyarkin
Linking the intrinsic tertiary structures of biomolecules to their native geometries is a central prerequisite for making gas-phase studies directly relevant to biology. The isolation of molecules in the gas phase eliminates hydrophilic interactions with solvents, to some extent mimicking a hydrophobic environment. Intrinsic structures therefore may resemble native ones for peptides that in vivo reside in a hydrophobic environment (e.g., binding pockets of receptors). In this study, we investigate doubly protonated neurokinin A (NKA) using IR-UV double resonance cold ion spectroscopy and find only five conformers of this decapeptide in the gas phase...
January 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28105880/nursing-home-care-quality-a-cluster-analysis
#8
Vigdis Abrahamsen Grøndahl, Liv Berit Fagerli
Purpose The purpose of this paper is to explore potential differences in how nursing home residents rate care quality and to explore cluster characteristics. Design/methodology/approach A cross-sectional design was used, with one questionnaire including questions from quality from patients' perspective and Big Five personality traits, together with questions related to socio-demographic aspects and health condition. Residents ( n=103) from four Norwegian nursing homes participated (74.1 per cent response rate)...
February 13, 2017: International Journal of Health Care Quality Assurance
https://www.readbyqxmd.com/read/28105344/molecular-tracking-investigation-of-melioidosis-cases-reveals-regional-endemicity-in-hainan-china
#9
Yingzi Lin, Qiang Wu, Xiang Liu, Sufang Dong, Lixian Wu, Hua Pei, Ke Xu, Qianfeng Xia
Sporadic cases of melioidosis have been reported in Hainan, China for decades; however, to the best of our knowledge, there are no accurate source-identification investigations confirming that melioidosis is endemic. Four indigenous melioidosis cases were identified, which prompted the performance of contact microbiologic and molecular techniques to evaluate endemicity. Environmental samples were collected from various locations surrounding each patient's residence. The samples were screened for Burkholderia pseudomallei (B...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28104617/staphylococcus-aureus-pathogenesis-in-diverse-host-environments
#10
Divya Balasubramanian, Lamia Harper, Bo Shopsin, Victor J Torres
Staphylococcus aureus (S. aureus) is an eminent human pathogen that can colonize the human host and cause severe, life-threatening illnesses. This bacterium can reside in and infect a wide range of host tissues, ranging from superficial surfaces like the skin to deeper tissues such as in the gastrointestinal tract, heart and bones. Due to its multifaceted lifestyle, S. aureus uses complex regulatory networks to sense diverse signals that enable it to adapt to different environments and modulate virulence. In this mini-review, we explore well-characterized environmental and host cues that S...
January 18, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28104488/satisfaction-with-communication-in-primary-care-for-spanish-speaking-and-english-speaking-parents
#11
Kori B Flower, Asheley C Skinner, H Shonna Yin, Russell L Rothman, Lee M Sanders, Alan Delamater, Eliana M Perrin
BACKGROUND AND OBJECTIVE: Effective communication with primary care physicians is important yet incompletely understood for Spanish-speaking parents. We predicted lower satisfaction among Spanish-speaking compared with English-speaking Latino and non-Latino parents. METHODS: Cross-sectional analysis at 2-month well visits within the Greenlight study at 4 pediatric resident clinics. Parents reported satisfaction with 14 physician communication items using the validated Communication Assessment Tool (CAT)...
January 16, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/28104385/an-evidence-based-approach-to-surgical-teaching-in-ophthalmology
#12
Alice C Lorch, Carolyn E Kloek
An apprenticeship model has traditionally been used in procedural and surgical teaching. As the pressures of work hours and patient outcome monitoring increase, surgical teachers need a more flexible plan for teaching procedural skills. We attempt to delineate a program of pre-, intra-, and post- procedural teaching that can be used in the field of ophthalmology to maximize a resident's skill acquisition in a constructive learning environment.We review the literature on surgical teaching from within ophthalmology as well as other surgical fields and combine this with teaching experience in an ophthalmic surgical training program to produce a collection of procedural teaching guidelines...
January 16, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28103842/one-size-doesn-t-fit-all-cross-sectional-associations-between-neighborhood-walkability-crime-and-physical-activity-depends-on-age-and-sex-of-residents
#13
Andrea S Richardson, Wendy M Troxel, Madhumita B Ghosh-Dastidar, Robin Beckman, Gerald P Hunter, Amy S DeSantis, Natalie Colabianchi, Tamara Dubowitz
BACKGROUND: Low-income African American adults are disproportionately affected by obesity and are also least likely to engage in recommended levels of physical activity (Flegal et al. JAMA 303(3):235-41, 2010; Tucker et al. Am J Prev Med 40(4):454-61, 2011). Moderate-to-vigorous physical activity (MVPA) is an important factor for weight management and control, as well as for reducing disease risk (Andersen et al. Lancet 368(9532):299-304, 2006; Boreham and Riddoch J Sports Sci 19(12):915-29, 2001; Carson et al...
January 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28103774/formulation-development-and-evaluation-of-lyophilized-nasal-inserts-for-migraine-treatment
#14
Atishkumar Mundada, Harshada Sarode
BACKGROUND: Nasal inserts are novel, solid, bioadhesive dosage forms administered via nasal route for prolonged systemic drug delivery. The principle of the dosage form is that, after administration nasal inserts imbibe nasal fluid from the mucosa and form a gel in the nasal cavity in order to avoid foreign body sensation. The objective of this investigation was the development of chitosan/xanthan gum based bioadhesive nasal inserts of antimigraine drug. METHODS: Lyophilization is more usual technique for the preparation of nasal inserts and it is one of the applied methods for drying of solids either in the form of aqueous solution or rarely in the form of aqueous suspension by using freeze dryers...
January 18, 2017: Recent Patents on Drug Delivery & Formulation
https://www.readbyqxmd.com/read/28103729/strategies-to-promote-resilience-empathy-and-well-being-in-the-health-professions-insights-from-the-2015-centile-conference
#15
Aviad Haramati, Sian Cotton, Jamie S Padmore, Hedy S Wald, Peggy A Weissinger
The high prevalence of physician burnout is of great concern and may begin with observed declines in empathy and increases in stress and burnout in medical and health professions students. While underlying causes have been described, there is less certainty on how to create effective interventions in curricula and workplace. In October 2015, The Center for Innovation and Leadership in Education (CENTILE) at Georgetown University, together with MedStar Health, Georgetown's clinical partner, and six academic institutions sponsored a conference in Washington, DC...
January 20, 2017: Medical Teacher
https://www.readbyqxmd.com/read/28103692/phenotypic-screen-for-cardiac-regeneration-identifies-molecules-with-differential-activity-in-human-epicardium-derived-cells-versus-cardiac-fibroblasts
#16
Amalia I Paunovic, Lauren Drowley, Anneli Nordqvist, Elke Ericson, Elizabeth Mouchet, Anna Jonebring, Gunnar Grönberg, Alexander J Kvist, Ola Engkvist, Martin R Brown, Karin Gedda, Marie-José Goumans, Qing-Dong Wang, Alleyn T Plowright
Activation and proliferation of resident cardiac progenitor cells has therapeutic potential to repair the heart after injury. However, research has been impeded by a lack of well-defined and characterized cell sources and difficulties in translation to screening platforms. Here, we describe the development, validation, and use of a 384-well phenotypic assay in primary human epicardium-derived cells (EPDCs) to identify compounds that induce proliferation while maintaining the progenitor phenotype. Using this assay, we screened 7400 structurally diverse compounds where greater than 90% are biologically annotated and known to modulate a broad range of biological targets...
January 20, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28103295/prevalence-and-trends-of-hiv-syphilis-and-hcv-in-migrant-and-resident-men-who-have-sex-with-men-in-shandong-china-results-from-a-serial-cross-sectional-study
#17
Jun Hu, Xu Gu, Xiaorun Tao, Yaosheng Qian, Giridhara R Babu, Guoyong Wang, Meizhen Liao, Larry Han, Dianmin Kang, Weiming Tang
BACKGROUND: Migrant men who have sex with men (MSM) have a higher predisposition for HIV transmission. We aimed to determine and compare the prevalence and trends of HIV, Syphilis, and HCV between migrant and resident MSM in Shandong, China. METHODS: A serial cross-sectional study was conducted in eight cities in Shandong, China from 2010 to 2014. The surveys collected information on demographics, HIV-related knowledge, and HIV-related behaviors including the serologic status of HIV, syphilis, and HCV...
2017: PloS One
https://www.readbyqxmd.com/read/28103063/delivering-on-the-promise-of-smoke-free-public-housing
#18
Douglas E Levy, Inez F Adams, Gary Adamkiewicz
On November 30, 2016, the US Department of Housing and Urban Development (HUD) published a final rule mandating that public housing authorities it supports prohibit all smoking on their residential premises, including within residents' apartments. The primary rationale for this action was to protect nonsmoking residents from the harms of tobacco smoke exposure. Although the harms of secondhand smoke are clear and the potential for reducing nonsmoking residents' exposure is real, it will be no simple matter to successfully implement the policy requirements set down by HUD...
January 19, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28102960/nine-degrees-of-freedom-flexmap-for-a-cone-beam-computed-tomography-imaging-device-with-independently-movable-source-and-detector
#19
Peter Keuschnigg, Daniel Kellner, Karl Fritscher, Andrea Zechner, Ulrich Mayer, Philipp Huber, Felix Sedlmayer, Heinz Deutschmann, Philipp Steininger
PURPOSE: Couch-mounted cone-beam computed tomography (CBCT) imaging devices with independently rotatable x-ray source and flat-panel detector arms for acquisitions of arbitrary regions of interest (ROI) have recently been introduced in image-guided radiotherapy (IGRT). This work analyzes mechanical limitations and gravity-induced effects influencing the geometric accuracy of images acquired with arbitrary angular constellations of source and detector in nonisocentric trajectories, which is considered essential for IGRT...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102850/japanese-encephalitis-virus-induces-human-neural-stem-progenitor-cell-death-by-elevating-grp78-phb-and-hnrnpc-through-er-stress
#20
Sriparna Mukherjee, Noopur Singh, Nabonita Sengupta, Mahar Fatima, Pankaj Seth, Anita Mahadevan, Susarla Krishna Shankar, Arindam Bhattacharyya, Anirban Basu
Japanese encephalitis virus (JEV), which is a causative agent of sporadic encephalitis, harbours itself inside the neural stem/progenitor cells. It is a well-known fact that JEV infects neural stem/progenitor cells and decreases their proliferation capacity. With mass spectrometry-based quantitative proteomic study, it is possible to reveal the impact of virus on the stem cells at protein level. Our aim was to perceive the stem cell proteomic response upon viral challenge. We performed a two-dimensional gel electrophoresis-based proteomic study of the human neural stem cells (hNS1 cell line) post JEV infection and found that 13 proteins were differentially expressed...
January 19, 2017: Cell Death & Disease
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