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https://www.readbyqxmd.com/read/28329690/tissue-myeloid-progenitors-differentiate-into-pericytes-through-tgf-%C3%AE-signaling-in-developing-skin-vasculature
#1
Tomoko Yamazaki, Ani Nalbandian, Yutaka Uchida, Wenling Li, Thomas D Arnold, Yoshiaki Kubota, Seiji Yamamoto, Masatsugu Ema, Yoh-Suke Mukouyama
Mural cells (pericytes and vascular smooth muscle cells) are essential for the regulation of vascular networks and maintenance of vascular integrity, but their origins are diverse in different tissues and not known in the organs that arise from the ectoderm, such as skin. Here, we show that tissue-localized myeloid progenitors contribute to pericyte development in embryonic skin vasculature. A series of in vivo fate-mapping experiments indicates that tissue myeloid progenitors differentiate into pericytes...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28329277/resting-right-ventricular-function-is-associated-with-exercise-performance-in-pah-but-not-in-cteph
#2
Michaela Beatrice Rehman, Luke S Howard, Luc P Christiaens, Dipender Gill, J Simon R Gibbs, Petros Nihoyannopoulos
Aims: To assess whether resting right ventricular (RV) function assessed by Global RV longitudinal strain (RVLS) and RV fractional area change (FAC) is associated with exercise performance in pulmonary arterial hypertension (PAH) and in chronic thromboembolic pulmonary hypertension (CTEPH). Methods and results: We prospectively recruited 46 consecutive patients with PAH and 42 patients with CTEPH who were referred for cardio-pulmonary exercise testing (CPET) and transthoracic echocardiography...
February 27, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329261/effects-of-noise-on-vascular-function-oxidative-stress-and-inflammation-mechanistic-insight-from-studies-in-mice
#3
Thomas Münzel, Andreas Daiber, Sebastian Steven, Lan P Tran, Elisabeth Ullmann, Sabine Kossmann, Frank P Schmidt, Matthias Oelze, Ning Xia, Huige Li, Antonio Pinto, Philipp Wild, Kai Pies, Erwin R Schmidt, Steffen Rapp, Swenja Kröller-Schön
Aims: Epidemiological studies indicate that traffic noise increases the incidence of coronary artery disease, hypertension and stroke. The underlying mechanisms remain largely unknown. Field studies with nighttime noise exposure demonstrate that aircraft noise leads to vascular dysfunction, which is markedly improved by vitamin C, suggesting a key role of oxidative stress in causing this phenomenon. Methods and results: We developed a novel animal model to study the vascular consequences of aircraft noise exposure...
February 17, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28328697/the-fear-avoidance-components-scale-facs-responsiveness-to-functional-restoration-treatment-in-a-chronic-musculoskeletal-pain-disorder-cmpd-population
#4
Randy Neblett, Tom G Mayer, Mark J Williams, Sali Asih, Antonio I Cuesta-Vargas, Meredith M Hartzell, Robert J Gatchel
OBJECTIVES: To assess the clinical validity and factor structure of the Fear-Avoidance Components Scale (FACS), a new fear-avoidance (FA) measure. METHODS: In this study, 426 chronic musculoskeletal pain disorder (CMPD) patients were admitted to a functional restoration program (FRP). They were categorized into five FACS severity levels, from Subclinical to Extreme, at admission, and again at discharge. Associations with objective lifting performance and other patient-reported psychosocial measures were determined at admission and discharge, and objective work outcomes for this predominantly disabled cohort, were assessed one-year later...
March 21, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28327575/analysis-of-exome-data-for-4293-trios-suggests-gpi-anchor-biogenesis-defects-are-a-rare-cause-of-developmental-disorders
#5
Alistair T Pagnamenta, Yoshiko Murakami, John M Taylor, Consuelo Anzilotti, Malcolm F Howard, Venessa Miller, Diana S Johnson, Shereen Tadros, Sahar Mansour, I Karen Temple, Rachel Firth, Elisabeth Rosser, Rachel E Harrison, Bronwen Kerr, Niko Popitsch, Taroh Kinoshita, Jenny C Taylor, Usha Kini
Over 150 different proteins attach to the plasma membrane using glycosylphosphatidylinositol (GPI) anchors. Mutations in 18 genes that encode components of GPI-anchor biogenesis result in a phenotypic spectrum that includes learning disability, epilepsy, microcephaly, congenital malformations and mild dysmorphic features. To determine the incidence of GPI-anchor defects, we analysed the exome data from 4293 parent-child trios recruited to the Deciphering Developmental Disorders (DDD) study. All probands recruited had a neurodevelopmental disorder...
March 22, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28324320/tailoring-the-properties-of-mpeg-plla-nanoparticles-for-better-encapsulation-and-tuned-release-of-the-hydrophilic-anticancer-drug
#6
Sachin S Surwase, Neha M Munot, Bhaskar B Idage, Susheela B Idage
Gemcitabine is used as a first-line drug for treating many solid tumours. However, it suffers from a major drawback of strong side effects and short plasma half-life because of degradation by enzyme when administered intravenously. Polyesters and copolyesters are the most widely used and preferred class of biodegradable polymer. In the present work, efforts have been made to prepare poly(ethylene glycol) monomethoxy ether-poly(L-lactide) (mPEG-PLLA), a biodegradable amphiphilic copolymer with a view to improve the entrapment and tuned release of hydrophilic drug gemcitabine...
March 21, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28324039/unique-regenerative-mechanism-to-replace-bone-lost-during-dietary-bone-depletion-in-weanling-mice
#7
Matilda H-C Sheng, Kin-Hing William Lau, Ram Lakhan, Abu Shufian Ishtiaq Ahmed, Charles H Rundle, Patra Biswanath, David J Baylink
This study was undertaken to determine the mechanism whereby calcitropic hormones and mesenchymal stem cell progeny changes involved in bone repletion, a regenerative bone process that restores the bone lost to calcium deficiency. To initiate depletion, weanling mice with a mixed C57BL/6 (75%) and CD1 (25%) genetic background were fed a calcium-deficient diet (0.01%) for 14 days. For repletion, the mice were re-fed a control diet containing 1.2% calcium for 14 days. Depletion decreased plasma calcium and increased plasma PTH, 1,25(OH)2D, and CTX...
January 26, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323243/proteomics-of-facs-sorted-heterogeneous-corynebacterium-glutamicum-populations
#8
Andreas Harst, Stefan P Albaum, Tanja Bojarzyn, Christian Trötschel, Ansgar Poetsch
The metabolic status of individual cells in microbial cultures can differ, being relevant for biotechnology, environmental and medical microbiology. However, it is hardly understood in molecular detail due to limitations of current analytical tools. Here, we demonstrate that FACS in combination with proteomics can be used to sort and analyze cell populations based on their metabolic state. A previously established GFP reporter system was used to detect and sort single Corynebacterium glutamicum cells based on the concentration of branched chain amino acids (BCAA) using FACS...
March 17, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28322547/multifunctional-collagen-and-hyaluronic-acid-multilayer-films-on-live-mesenchymal-stem-cells
#9
Daheui Choi, Jaeseong Park, Jiwoong Heo, Tong In Oh, Eun Ah Lee, Jinkee Hong
Cell encapsulation has been reported to convey cytoprotective effects and to better maintain cell survival. In contrast to other studies, our report shows that the deposition of two major biomacromolecules, collagen type I (Col) and hyaluronic acid (HA), on mesenchymal stem cells (MSCs) does not entirely block the cell plasma membrane surface. Instead, a considerable amount of the surface remained uncovered or only slightly covered, as confirmed by TEM observation and by FACS analysis based on quantitative surface labeling...
March 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28321209/treatment-of-leishmania-leishmania-amazonensis-infected-mice-with-a-combination-of-a-palladacycle-complex-and-heat-killed-propionibacterium-acnes-triggers-protective-cellular-immune-responses
#10
Carolina S Paladi, Danielle A M da Silva, Priscila D Motta, Daniel M Garcia, Daniela Teixeira, Ieda M Longo-Maugéri, Simone Katz, Clara L Barbiéri
Palladacycle complex DPPE 1.2 was previously reported to inhibit the in vitro and in vivo infection by Leishmania (Leishmania) amazonensis. The aim of the present study was to compare the effect of DPPE 1.2, in association with heat-killed Propionibacterium acnes, on L. (L.) amazonensis infection in two mouse strains, BALB/c and C57BL/6, and to evaluate the immune responses of the treated animals. Foot lesions of L. (L.) amazonensis-infected mice were injected with DPPE 1.2 alone, or associated with P. acnes as an adjuvant...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28320357/outcome-of-neurological-early-rehabilitation-patients-carrying-multi-drug-resistant-bacteria-results-from-a-german-multi-center-study
#11
J D Rollnik, M Bertram, C Bucka, M Hartwich, M Jöbges, G Ketter, B Leineweber, M Mertl-Rötzer, D A Nowak, T Platz, K Scheidtmann, R Thomas, F von Rosen, C W Wallesch, H Woldag, P Peschel, J Mehrholz, M Pohl
BACKGROUND: Colonization or infection with multi-drug resistant (MDR) bacteria is considered detrimental to the outcome of neurological and neurosurgical early rehabilitation patients. METHODS: In a German multi-center study, 754 neurological early rehabilitation patients were enrolled and and reviewed in respect to MDR status, length of stay (LOS) and the following outcome variables: Barthel Index (BI), Early Rehabilitation Index (ERI), Glasgow Outcome Score Extended (GOSE), Coma Remission Scale (CRS), Functional Ambulation Categories (FAC)...
March 20, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28315770/biophysics-and-protein-corona-analysis-of-janus-cyclodextrin-dna-nanocomplexes-efficient-cellular-transfection-on-cancer-cells
#12
M Martínez-Negro, G Caracciolo, S Palchetti, D Pozzi, A L Capriotti, C Cavaliere, A Laganà, C Ortiz Mellet, J M Benito, J M García Fernández, E Aicart, E Junquera
The self-assembling processes underlining the capabilities of facially differentiated ("Janus") polycationic amphiphilic cyclodextrins (paCDs) as non-viral gene nanocarriers have been investigated by a pluridisciplinary approach. Three representative Janus paCDs bearing a common tetradecahexanoyl multitail domain at the secondary face and differing in the topology of the cluster of amino groups at the primary side were selected for this study. All of them compact pEGFP-C3 plasmid DNA and promote transfection in HeLa and MCF-7 cells, both in absence and in presence of human serum...
March 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28314378/novel-cryopreservation-method-for-the-effective-collection-of-dental-pulp-stem-cells
#13
Yusuke Takebe, Seiko Tatehara, Tatsuhiro Fukushima, Reiko Tokuyama-Toda, Rika Yasuhara, Kenji Mishima, Kazuhito Satomura
Dental pulp stem cells (DPSCs) are an attractive cell source for use in cell-based therapy, regenerative medicine, and tissue engineering because DPSCs have high cell proliferation ability and multi-differentiation capacity. However, several problems are associated with the collection and preservation of DPSCs for future cell-based therapy. In addition, the isolation of DPSCs for cryopreservation is time-consuming and expensive. In this study, we developed a novel cryopreservation method for dental pulp tissues that can isolate suitable DPSCs after thawing cryopreserved tissue...
March 17, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28303331/implication-of-vegf-and-aquaporin-4-mediating-m%C3%A3-ller-cell-swelling-to-diabetic-retinal-edema
#14
Teruyo Kida, Hidehiro Oku, Taeko Horie, Masanori Fukumoto, Yoshitaka Okuda, Seita Morishita, Tsunehiko Ikeda
PURPOSE: Aquaporin 4 (AQP4), a water channel protein, is known to be expressed in retinal Müller cells. The purpose of this study was to determine the effects of VEGF and AQP4 channels on the volumetric changes in Müller cells. METHODS: Retinas from diabetic rats and a cultured Müller cell line, TR-MUL5, were used in this study. Intravitreal injections of VEGF or PBS were performed on either streptozotocin (STZ)-induced diabetic or normoglycemic rats. Retinal sections were immunostained for anti-glial fibrillary acidic protein (GFAP), anti-AQP4, and anti-VEGF...
March 16, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28302319/high-sensitivity-cardiac-troponin-t-and-systemic-right-ventricular-function-in-adults-with-congenitally-corrected-transposition-of-the-great-arteries
#15
Ewa Kowalik, Anna Klisiewicz, Justyna Rybicka, Elżbieta K Biernacka, Piotr Hoffman
BACKGROUND: High sensitive troponin T (hsTnT), a marker of myocardial injury, appears to be a promising diagnostic tool in patients with congenital heart disease. However, little is known about its distribution among adults with systemic right ventricle (sRV). We aimed to assess the distribution of hsTnT concentrations in patients with congenitally corrected transposition of the great arteries (ccTGA) and to evaluate its relationship with sRV function and NT-proBNP. METHODS: A cross-sectional study of adults with ccTGA was conducted...
March 11, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28295648/echocardiographic-assessment-of-right-ventricular-size-and-function-in-cats-with-hypertrophic-cardiomyopathy
#16
L C Visser, C Q Sloan, J A Stern
BACKGROUND: Studies evaluating right ventricular (RV) structural and functional abnormalities in feline hypertrophic cardiomyopathy (HCM) are limited. HYPOTHESIS: Right ventricular structural and functional abnormalities are present in cats with HCM and are associated with clinical severity. ANIMALS: Eighty-one client-owned cats. METHODS: Retrospective 2-dimensional (2D) echocardiographic study. Right atrial diameter (RAD), RV free wall thickness (RVFWd), RV internal dimension (RVIDd), RV fractional area change (FAC), and tricuspid annular plane systolic excursion (TAPSE) were measured in control cats (n = 26), cats with subclinical HCM (subclinical HCM; n = 31), and cats with HCM and congestive heart failure (HCM + CHF; n = 24)...
March 13, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28295574/cd38-positively-regulates-postnatal-development-of-astrocytes-cell-autonomously-and-oligodendrocytes-non-cell-autonomously
#17
Tsuyoshi Hattori, Minoru Kaji, Hiroshi Ishii, Roboon Jureepon, Mika Takarada-Iemata, Hieu Minh Ta, Thuong Manh Le, Ayumu Konno, Hirokazu Hirai, Yoshitake Shiraishi, Noriyuki Ozaki, Yasuhiko Yamamoto, Hiroshi Okamoto, Shigeru Yokoyama, Haruhiro Higashida, Yasuko Kitao, Osamu Hori
Glial development is critical for the function of the central nervous system. CD38 is a multifunctional molecule with ADP-ribosyl cyclase activity. While critical roles of CD38 in the adult brain such as oxytocin release and social behavior have been reported, those in the developing brain remain largely unknown. Here we demonstrate that deletion of Cd38 leads to impaired development of astrocytes and oligodendrocytes in mice. CD38 is highly expressed in the developing brains between postnatal day 14 (P14) and day 28 (P28)...
March 13, 2017: Glia
https://www.readbyqxmd.com/read/28289633/improved-gait-speed-after-robot-assisted-gait-training-in-patients-with-motor-incomplete-spinal-cord-injury-a-preliminary-study
#18
Seungwon Hwang, Hye-Ri Kim, Zee-A Han, Bum-Suk Lee, Soojeong Kim, Hyunsoo Shin, Jae-Gun Moon, Sung-Phil Yang, Mun-Hee Lim, Duk-Youn Cho, Hayeon Kim, Hye-Jin Lee
OBJECTIVE: To evaluate the clinical features that could serve as predictive factors for improvement in gait speed after robotic treatment. METHODS: A total of 29 patients with motor incomplete spinal cord injury received 4-week robot-assisted gait training (RAGT) on the Lokomat (Hocoma AG, Volketswil, Switzerland) for 30 minutes, once a day, 5 times a week, for a total of 20 sessions. All subjects were evaluated for general characteristics, the 10-Meter Walk Test (10MWT), the Lower Extremity Motor Score (LEMS), the Functional Ambulatory Category (FAC), the Walking Index for Spinal Cord Injury version II (WISCI-II), the Berg Balance Scale (BBS), and the Spinal Cord Independence Measure version III (SCIM-III) every 0, and 4 weeks...
February 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28289160/prolonged-ischemia-triggers-necrotic-depletion-of-tissue-resident-macrophages-to-facilitate-inflammatory-immune-activation-in-liver-ischemia-reperfusion-injury
#19
Shi Yue, Haoming Zhou, Xuehao Wang, Ronald W Busuttil, Jerzy W Kupiec-Weglinski, Yuan Zhai
Although mechanisms of immune activation against liver ischemia reperfusion (IR) injury (IRI) have been studied extensively, questions regarding liver-resident macrophages, that is, Kupffer cells (KCs), remain controversial. Recent progress in the biology of tissue-resident macrophages implicates homeostatic functions of KCs. This study aims to dissect responses and functions of KCs in liver IRI. In a murine liver partial warm ischemia model, we analyzed liver-resident versus infiltrating macrophages by FACS and immunofluorescence staining...
March 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28287607/mitoception-transferring-isolated-human-msc-mitochondria-to-glioblastoma-stem-cells
#20
Brice Nzigou Mombo, Sabine Gerbal-Chaloin, Aleksandra Bokus, Martine Daujat-Chavanieu, Christian Jorgensen, Jean-Philippe Hugnot, Marie-Luce Vignais
Mitochondria play a central role for cell metabolism, energy production and control of apoptosis. Inadequate mitochondrial function has been found responsible for very diverse diseases, ranging from neurological pathologies to cancer. Interestingly, mitochondria have recently been shown to display the capacity to be transferred between cell types, notably from human mesenchymal stem cells (MSC) to cancer cells in coculture conditions, with metabolic and functional consequences for the mitochondria recipient cells, further enhancing the current interest for the biological properties of these organelles...
February 22, 2017: Journal of Visualized Experiments: JoVE
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