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https://www.readbyqxmd.com/read/28324676/comparison-of-selected-nonlethal-samples-from-adult-steelhead-for-detection-of-infectious-hematopoietic-necrosis-virus-using-cell-culture
#1
David R Burbank, Tyson R Fehringer, Luciano V Chiaramonte
Nonlethal sampling techniques have previously been evaluated for detection of a variety of viral salmonid pathogens. However, many of these studies have used molecular assays in lieu of widely accepted cell culture techniques to evaluate the sampled tissues. Samples were collected from female steelhead Oncorhynchus mykiss broodstock using three potential nonlethal sampling methods (mucus/skin scrape, pectoral fin clip, and gill tissue biopsy) and evaluated for the presence of infectious hematopoietic necrosis virus (IHNV) via cell culture techniques...
June 2017: Journal of Aquatic Animal Health
https://www.readbyqxmd.com/read/28324607/sted-imaging-in-drosophila-brain-slices
#2
Sandra Fendl, Jesús Pujol-Martí, Joel Ryan, Alexander Borst, Robert Kasper
Super-resolution microscopy is a very powerful tool to investigate fine cellular structures and molecular arrangements in biological systems. For instance, stimulated emission depletion (STED) microscopy has been successfully used in recent years to investigate the arrangement and colocalization of different protein species in cells in culture and on the surface of specimens. However, because of its extreme sensitivity to light scattering, super-resolution imaging deep inside tissues remains a challenge. Here, we describe the preparation of thin slices from the fruit fly (Drosophila melanogaster) brain, subsequent immunolabeling and imaging with STED microscopy...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28324489/monitoring-mitochondrial-changes-by-alteration-of-the-pink1-parkin-signaling-in-drosophila
#3
Tsuyoshi Inoshita, Kahori Shiba-Fukushima, Hongrui Meng, Nobutaka Hattori, Yuzuru Imai
Mitochondrial quality control is a key process in tissues with high energy demands, such as the brain and muscles. Recent studies using Drosophila have revealed that the genes responsible for familial forms of juvenile Parkinson's disease (PD), PINK1 and Parkin regulate mitochondrial function and motility. Cell biological analysis using mammalian cultured cells suggests that the dysregulation of mitophagy by PINK1 and Parkin leads to neurodegeneration in PD. In this chapter, we describe the methods to monitor mitochondrial morphology in the indirect flight muscles of adult Drosophila and Drosophila primary cultured neurons and the methods to analyze the motility of mitochondria in the axonal transport of living larval motor neurons...
March 22, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28324043/reduced-transforming-growth-factor-beta-activity-in-the-endometrium-of-women-with-heavy-menstrual-bleeding
#4
J A Maybin, L Boswell, V J Young, W C Duncan, Hod Critchley
Context: Heavy menstrual bleeding (HMB) is common and incapacitating. Aberrant menstrual endometrial repair may result in HMB. The TGFβ superfamily contributes to tissue repair, but its role in HMB is unknown. Objective: We hypothesised that TGFβ1 is important for endometrial repair and women with HMB have aberrant TGFβ1 activity at menses. Participants/Setting: Endometrial biopsies were collected from women and menstrual blood loss objectively measured (HMB >80ml/cycle, normal menstrual bleeding, NMB <80ml)...
January 3, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323919/steroids-regulate-cxcl4-in-the-human-endometrium-during-menstruation-to-enable-efficient-endometrial-repair
#5
J A Maybin, U Thiruchelvam, M Madhra, Ptk Saunders, Hod Critchley
Context: Repair of the endometrial surface at menstruation must be efficient to minimize blood loss and optimize reproductive function. The mechanism and regulation of endometrial repair remain undefined. Objective: To determine the presence/regulation of CXCL4 in the human endometrium, as a putative repair factor at menses. Patients/Setting: Endometrium was collected throughout the menstrual cycle from healthy women attending the gynecology department...
February 27, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28320052/soft-tissue-infections-from-fish-spike-wounds-normal-commensal-bacteria-are-more-common-than-marine-pathogens
#6
Hannah Collins, Kin Mun Lee, Paul T-Y Cheng, Sarah Hulme
BACKGROUND: A fish spike injury can be sustained by anyone handling fish; during fishing, meal preparation or in retail. Case reports of fish spikes inoculating victims with virulent marine-specific pathogens and causing systemic illness led us to question whether empirical treatment of these injuries with amoxicillin and clavulanic acid is adequate. METHODS: This 2-year prospective observational study was conducted at Middlemore Hospital, Auckland, New Zealand...
March 20, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28319334/biofunctionalized-plants-as-diverse-biomaterials-for-human-cell-culture
#7
Gianluca Fontana, Joshua Gershlak, Michal Adamski, Jae-Sung Lee, Shion Matsumoto, Hau D Le, Bernard Binder, John Wirth, Glenn Gaudette, William L Murphy
The commercial success of tissue engineering products requires efficacy, cost effectiveness, and the possibility of scaleup. Advances in tissue engineering require increased sophistication in the design of biomaterials, often challenging the current manufacturing techniques. Interestingly, several of the properties that are desirable for biomaterial design are embodied in the structure and function of plants. This study demonstrates that decellularized plant tissues can be used as adaptable scaffolds for culture of human cells...
March 20, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28318948/comparative-assessment-of-intrinsic-mechanical-stimuli-on-knee-cartilage-and-compressed-agarose-constructs
#8
A Completo, C Bandeiras, F Fonseca
A well-established cue for improving the properties of tissue-engineered cartilage is mechanical stimulation. However, the explicit ranges of mechanical stimuli that correspond to favorable metabolic outcomes are elusive. Usually, these outcomes have only been associated with the applied strain and frequency, an oversimplification that can hide the fundamental relationship between the intrinsic mechanical stimuli and the metabolic outcomes. This highlights two important key issues: the firstly is related to the evaluation of the intrinsic mechanical stimuli of native cartilage; the second, assuming that the intrinsic mechanical stimuli will be important, deals with the ability to replicate them on the tissue-engineered constructs...
March 17, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28318650/the-distribution-of-vascular-endothelial-growth-factor-in-human-meniscus-and-a-meniscal-injury-model
#9
Zhichao Lu, Takayuki Furumatsu, Masataka Fujii, Ami Maehara, Toshifumi Ozaki
BACKGROUND: The meniscus plays an important role in controlling the complex biomechanics of the knee. Meniscus injury is common in the knee joint. The perimeniscal capillary plexus supplies the outer meniscus, whereas the inner meniscus is composed of avascular tissue. Angiogenesis factors, such as vascular endothelial growth factor (VEGF), have important roles in promoting vascularization of various tissues. VEGF-mediated neovascularization is beneficial to the healing of injured tissues...
March 15, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28318629/machine-learning-algorithms-define-pathogen-specific-local-immune-fingerprints-in-peritoneal-dialysis-patients-with-bacterial-infections
#10
Jingjing Zhang, Ida M Friberg, Ann Kift-Morgan, Gita Parekh, Matt P Morgan, Anna Rita Liuzzi, Chan-Yu Lin, Kieron L Donovan, Chantal S Colmont, Peter H Morgan, Paul Davis, Ian Weeks, Donald J Fraser, Nicholas Topley, Matthias Eberl
The immune system has evolved to sense invading pathogens, control infection, and restore tissue integrity. Despite symptomatic variability in patients, unequivocal evidence that an individual's immune system distinguishes between different organisms and mounts an appropriate response is lacking. We here used a systematic approach to characterize responses to microbiologically well-defined infection in a total of 83 peritoneal dialysis patients on the day of presentation with acute peritonitis. A broad range of cellular and soluble parameters was determined in peritoneal effluents, covering the majority of local immune cells, inflammatory and regulatory cytokines and chemokines as well as tissue damage-related factors...
March 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28318155/-biomineralization-of-electrospun-polycaprolactone-guided-bone-regeneration-membrane
#11
Deng Xia, Bai Shi
OBJECTIVE: To evaluate the biomineralization of the tissue-engineering electrospun polycaprolactone (PCL) scaffold and its potential use for guided bone regeneration (GBR) membranes. METHODS: PCL ultrafinefiber scaffolds were fabricated by electrospinning and then immersed in supersaturated calcification solution (SCS) for biomineralization investigation. The electrospun PCL scaffolds and the calcium phosphate coating were identified by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR)...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28317948/local-remodeling-of-synthetic-extracellular-matrix-microenvironments-by-co-cultured-endometrial-epithelial-and-stromal-cells-enables-long-term-dynamic-physiological-function
#12
Christi D Cook, Abby S Hill, Margaret Guo, Linda Stockdale, Julia P Papps, Keith B Isaacson, Douglas A Lauffenburger, Linda G Griffith
Mucosal barrier tissues, comprising a layer of tightly-bonded epithelial cells in intimate molecular communication with an underlying matrix-rich stroma containing fibroblasts and immune cells, are prominent targets for drugs against infection, chronic inflammation, and other disease processes. Although human in vitro models of such barriers are needed for mechanistic studies and drug development, differences in extracellular matrix (ECM) needs of epithelial and stromal cells hinder efforts to create such models...
March 20, 2017: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/28317537/diversity-in-the-botryosphaeriales-looking-back-looking-forward
#13
REVIEW
Bernard Slippers, Pedro Willem Crous, Fahimeh Jami, Johannes Zacharias Groenewald, Michael John Wingfield
The Botryosphaeriales are amongst the most widespread, common and important fungal pathogens of woody plants. Many are also known to exist as endophytes in healthy plant tissues. This special issue highlights a number of key themes in the study of this group of fungi. In particular, there have been dramatic taxonomic changes over the past decade; from one family to nine (including two in this special issue) and from 10 to 33 genera known from culture. It is also clear from many studies that neither morphology nor single locus sequence data are sufficient to define taxa...
April 2017: Fungal Biology
https://www.readbyqxmd.com/read/28317348/-expression-and-significance-of-wingless-type-mmtv-integration-site-family-member-5a-receptor-tyrosine-kinase-like-orphan-receptor-2-in-the-rat-dental-follicle
#14
Wang Liping, Li Boqi, Wang Qi, Tie Xiaomin, Liu Yishan
OBJECTIVE: To observe the expression of wingless-type MMTV integration site family, member 5A (Wnt5A)/receptor tyrosine kinase-like orphan receptor 2 (Ror2) signal in the dental follicle cells during the normal eruption of the teeth as well as to explore the relationship between the expression of dental follicle cells and the formation of mature osteoclasts and eruption of the teeth. METHODS: The mandibulars of 1-13 d old SD rats were separated to observe the growth and develop-ment of the teeth and alveolar bone through hematoxylin-eosin(HE) staining...
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28317098/cgrp-receptor-activity-in-mice-with-global-expression-of-human-receptor-activity-modifying-protein-1
#15
Keegan J Bohn, Baolin Li, Xiaofang Huang, Bianca N Mason, Anne-Sophie Wattiez, Adisa Kuburas, Christopher S Walker, Peiyi Yang, Jianliang Yu, Beverly A Heinz, Kirk W Johnson, Andrew F Russo
BACKGROUND AND PURPOSE: CGRP is a potent vasodilator and nociceptive neuropeptide linked to migraine. CGRP receptors are heterodimers of receptor activity-modifying protein-1 (RAMP1) and either calcitonin receptor-like receptor (CLR), which forms the canonical CGRP receptor, or calcitonin receptor (CTR), which forms the amylin-1 (AMY1 ) receptor. The goal of this study was to test whether transgenic mice globally expressing human RAMP1 (hRAMP1) have increased CGRP receptor activity and whether the receptors are sensitive to the human selective antagonist telcagepant...
March 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28317026/toxoplasma-gondii-ap2ix-4-regulates-gene-expression-during-bradyzoite-development
#16
Sherri Huang, Michael J Holmes, Joshua B Radke, Dong-Pyo Hong, Ting-Kai Liu, Michael W White, William J Sullivan
Toxoplasma gondii is a protozoan parasite of great importance to human and animal health. In the host, this obligate intracellular parasite persists as a tissue cyst that is imperceptible to the immune response and unaffected by current therapies. The tissue cysts facilitate transmission through predation and give rise to chronic cycles of toxoplasmosis in immunocompromised patients. Transcriptional changes accompany conversion of the rapidly replicating tachyzoites into the encysted bradyzoites, and yet the mechanisms underlying these alterations in gene expression are not well defined...
March 2017: MSphere
https://www.readbyqxmd.com/read/28316190/-allogeneic-cultured-limbal-epithelial-transplantation-a-clinical-observation-of-its-treatment-effects-on-large-conjunctival-lesions
#17
J Cheng, J Y Wang, H Y Duan, S Wang, L Cong, L X Xie
Objective: To introduce the surgical methods and investigate the treatment effects of conjunctival lesion resection combined with transplantation of allogeneic limbal epithelia cultured in vitro for treatment of varied large conjunctival lesions. Methods: A retrospective analysis of case data of the patients receiving transplantation of allogeneic limbal epithelia cultured in vitro for large conjunctival lesions at Qingdao Eye Hospital from January 2013 to December 2015 was conducted. Fresh donor corneal limbal epithelial tissues were obtained for cellular digestion and isolation...
March 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28316163/-effects-of-silencing-smad-ubiquitination-regulatory-factor-2-on-the-function-of-human-hypertrophic-scar-derived-fibroblasts
#18
Z Zhang, F Kuang, C L Liu, B Chen, W B Tang, X J Li
Objective: To explore the effects of silencing Smad ubiquitination regulatory factor 2 (Smurf2) on the secretion of transforming growth factor beta 1 (TGF-β(1)), alpha-smooth muscle actin (α-SMA), and collagen type Ⅰ by human hypertrophic scar-derived fibroblasts. Methods: The human normal skin-derived fibroblasts and hypertrophic scar-derived fibroblasts were cultured with explant culture technique from the normal skin and hypertrophic scar tissue, which was obtained from 9 patients with hypertrophic scars after burn...
March 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28316159/-mechanism-of-angiotensin-converting-enzyme-2-overexpression-improving-collagen-synthesis-in-lung
#19
Q J Yang, B B Zheng, N N Sun, M X Pan, Z M Zheng, Y Meng
Objective: To explore the mechanism of angiotensin-converting enzyme 2 (ACE2) overexpression improving collagen synthesis in lung. Methods: Lung fibroblasts of mice over-expressing ACE2 and the wild type (WT) were cultured in vitro and divided into 5 groups: WT-control, WT-AngiotensinⅡ (AngⅡ), ACE2(+ /+) -control, ACE2(+ /+) -AngⅡ and ACE2(+ /+) -AngⅡ+ A779. The protein relative expression levels of ACE2, collagen Ⅰ, nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4), nucleotide binding and oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3), autophagy-related protein (Beclin1), ubiquitin-binding protein p62 (P62), microtubule-associated proteins light chain 3-Ⅱ (LC3-Ⅱ) were measured by Western blot and triphosadenine (ATP) level was measured by ATP Assay Kit...
March 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28316060/hotair-functions-as-a-competing-endogenous-rna-to-regulate-pten-expression-by-inhibiting-mir-19-in-cardiac-hypertrophy
#20
Yanjun Lai, Shuai He, Liming Ma, Hong Lin, Biyun Ren, Jing Ma, Xinyu Zhu, Shifang Zhuang
Sustained cardiac hypertrophy (CH) is related to a variety of physiological as well as pathological stimuli and eventually increases the risk of heart failure. HOTAIR has been identified as a competing endogenous RNA in multiple human biological processes. Whether lncRNA-HOTAIR is involved in the progress of CH and how it works still remain unknown. Herein, we found that HOTAIR was down-regulated, while miR-19 was up-regulated in both heart tissues from TAC-operated mice in vivo and cultural cardiomyocytes treated with Ang-II in vitro by real-time PCR...
March 18, 2017: Molecular and Cellular Biochemistry
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