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https://www.readbyqxmd.com/read/28431181/protective-effect-of-mesenchymal-stem-cells-against-the-development-of-intracranial-aneurysm-rupture-in-mice
#1
Atsushi Kuwabara, Jia Liu, Yoshinobu Kamio, Airan Liu, Michael T Lawton, Jae-Woo Lee, Tomoki Hashimoto
BACKGROUND: Mesenchymal stem cells (MSCs) are multipotent stem or stromal cells found in multiple tissues. Intravenous MSC injections have been used to treat various diseases with an inflammatory component in animals and humans. Inflammation is emerging as a key component of pathophysiology of intracranial aneurysms. Modulation of inflammation by MSCs may affect sustained inflammatory processes that lead to aneurysmal rupture. OBJECTIVE: To assess the effect of MSCs on the development of aneurysm rupture using a mouse model...
April 19, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28431112/long-term-survival-of-the-mouse-es-cell-derived-mast-cell-medmc-brc6-in-mast-cell-deficient-kitw-sh-w-sh-mice
#2
Shohei Shibagaki, Satoko Tahara-Hanaoka, Takashi Hiroyama, Yukio Nakamura, Akira Shibuya
Mast cells (MCs) play pivotal roles in allergic reactions and the host defense against microbial infection through the immunoglobulin E (IgE)-dependent and IgE-independent signaling pathways. MC lines that can be analyzed both in vitro and in vivo would be useful for the study of MC-dependent immune responses. Here we investigated the functional characteristics of a mouse ES cell-derived mast cell-like cell line, MEDMC-BRC6. The cell line expressed FcεRI and c-Kit and showed degranulation and production of inflammatory cytokines and chemokine, including TNF-α, IL-6 and MCP-1, upon crosslinking FcεRI with IgE...
April 18, 2017: International Immunology
https://www.readbyqxmd.com/read/28430675/identifying-risk-factors-leading-to-unanticipated-postoperative-readmission
#3
Peter A Felice, David T Kerekes, Bruce A Mast
INTRODUCTION: Unanticipated postoperative readmissions are a grading metric directly linked to both the quality of patient care and physician reimbursement. However, little data exist to define factors responsible for these readmissions in the plastic surgery patient population. This study aims to identify patient risk factors contributing to unanticipated postoperative readmissions to optimize perioperative patient care and mitigate negative financial impact upon providers. METHODS: We present an institutional review board-approved study retrospective review of 819 plastic surgery patients undergoing operative procedures performed at our institution between January 1, 2013, and December 31, 2014...
April 20, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28429222/comparison-of-the-effects-of-mitochondria-targeted-antioxidant-10-6-plastoquinonyl-decyltriphenylphosphonium-bromide-skq1-and-a-fragment-of-its-molecule-dodecyltriphenylphosphonium-on-carrageenan-induced-acute-inflammation-in-mouse-model-of-subcuteneous-air
#4
M A Chelombitko, O A Averina, T V Vasil'eva, E E Dvorianinova, M V Egorov, O Yu Pletjushkina, E N Popova, A V Fedorov, V P Romashchenko, O P Ilyinskaya
The effect of mitochondria-targeted antioxidant 10-(6'-plastoquinonyl) decyltriphenylphosphonium bromide (SkQ1) and its fragment dodecyltriphenylphosphonium (C12TPP), weak uncouplers of respiration and oxidative phosphorylation, was studied using a mouse model of carrageenan-induced acute inflammation in the subcutaneous air pouch. In our model, SkQ1 demonstrated a strong anti-inflammatory effect that manifested in a decrease in the absolute number of inflammatory cells, mainly neutrophils, and their relative number in parallel with an increase in macrophages and mast cell content in the inflammatory exudate...
April 21, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28428805/edible-dormice-glis-glis-avoid-areas-with-a-high-density-of-their-preferred-food-plant-the-european-beech
#5
Jessica S Cornils, Franz Hoelzl, Birgit Rotter, Claudia Bieber, Thomas Ruf
BACKGROUND: Numerous species, especially among rodents, are strongly affected by the availability of pulsed resources. The intermittent production of large seed crops in northern hemisphere tree species (e.g., beech Fagus spec.,oak Quercus spec., pine trees Pinus spec.) are prime examples of these resource pulses. Adult edible dormice are highly dependent on high energy seeds to maximize their reproductive output. For juvenile dormice the energy rich food is important to grow and fatten in a very short time period prior to hibernation...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28428803/distribution-of-mast-cells-and-locations-depths-and-sizes-of-the-putative-acupoints-cv-8-and-ki-16
#6
Sharon Jiyoon Jung, Haim Song, Yu Yeon Kim, Jungdae Kim, Sungchul Kim, Yoon-Kyu Song, Kwang-Sup Soh
The anatomical locations and sizes of acupuncture points (APs) are identified in traditional Chinese medicine by using the cun measurement method. More precise knowledge of those locations and sizes to submillimeter precision, along with their cytological characterizations, would provide significant contributions both to scientific investigations and to precise control of the practice of acupuncture. Over recent decades, researchers have come to realize that APs in the skin of rats and humans have more mast cells (MCs) than neighboring nonacupoints...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28428784/the-roles-of-mast-cells-in-parasitic-protozoan-infections
#7
REVIEW
Fangli Lu, Shiguang Huang
Protozoan parasites such as Plasmodium spp., Leishmania spp., Trypanosoma spp., and Toxoplasma gondii are major causes of parasitic diseases in both humans and animals. The immune system plays a critical role against protozoa, but their immune mechanism remains poorly understood. This highlights the need to investigate the function of immune cells involved in the process of parasite infections and the responses of host immune system to parasite infections. Mast cells (MCs) are known to be central players in allergy and anaphylaxis, and it has been demonstrated that MCs have crucial roles in host defense against a number of different pathogens, including parasites...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28427401/ki-67-protein-expression-and-tumor-associated-inflammatory-cells-macrophages-and-mast-cells-in-canine-colorectal-carcinoma
#8
M Woldemeskel, I Hawkins, L Whittington
BACKGROUND: Ki67 index, tumor associated macrophages (TAMs) and mast cells (MCs) are associated with malignancies in animal and human neoplasms including colorectal carcinomas (CRC). This has not been assessed in canine CRC. Given similar genetic abnormalities between human and canine CRC, we assessed Ki-67 and mitotic indices, TAMs and MC count (MCC) in canine CRC (n = 17). TAMs and MCC were compared with those in adenomas (n = 13) and control (n = 9). RESULTS: Ki-67 index in CRC (17...
April 20, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28426261/a-morphological-study-of-uterine-alterations-in-mice-due-to-exposure-to-cadmium
#9
M Sapmaz-Metin, Y Topcu-Tarladacalisir, I Kurt-Omurlu, B Karaoz Weller, S Unsal-Atan
We investigated the morphologic and molecular effects of exposure to cadmium (Cd) for 30 and 60 days on the uteri of mice. We assessed uterine morphometric measurements, eosinophilia, mast cell numbers, endometrial apoptosis, proliferation and estrogen receptor alpha (ERα) immunoreactivity. We examined vaginal smears that reflected the hormonal alterations in the female reproductive tract. Because the female reproductive tract exhibits different morphology at each stage of the estrous cycle, we sacrificed all animals at estrus to make appropriate comparisons...
April 20, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28425830/tryptase-inhibitors-a-patent-review
#10
Wei-Wei Ni, Meng-Da Cao, Wen Huang, Ling Meng, Ji-Fu Wei
Tryptase is one of the main serine-proteinases located in the secretory granules of mast cells, and is released through degranulation, which is involved in the pathogenesis of allergic inflammatory disease, cardiovascular diseases, lung fibrosis and tumor. Therefore, inhibitors targeting tryptase may represent a new direction for the treatment of allergic inflammatory disease and other diseases. Areas covered: In this article, we discussed the history and development of tryptase inhibitors and described a variety of tryptase inhibitors via their structures and biological importance in clinical studies and drug development for tryptase-related diseases...
April 20, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28424692/t-cells-in-osteoarthritis-alterations-and-beyond
#11
REVIEW
Yu-Sheng Li, Wei Luo, Shou-An Zhu, Guang-Hua Lei
Although osteoarthritis (OA) has been traditionally regarded as a non-inflammatory disease, reports increasingly suggest that it is inflammatory, at least in certain patients. OA patients often exhibit inflammatory infiltration of synovial membranes by macrophages, T cells, mast cells, B cells, plasma cells, natural killer cells, dendritic cells, granulocytes, etc. Although previous reviews have summarized the knowledge of inflammation in the pathogenesis of OA, as far as we know, no report review our current understanding about T cells, especially, each T cell subtype, in the biology of OA...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28424628/branchial-pathomorphology-of-southern-bluefin-tuna-thunnus-maccoyii-castelnau-1872-infected-by-helminth-and-copepodan-parasites
#12
Mark B Adams, Craig J Hayward, Barbara F Nowak
Three metazoan parasites, a monogenean Hexostoma thynni and two species of copepods Pseudocycnus appendiculatus and Euryphorus brachypterus are known to parasitize the gills of ranched southern bluefin tuna (SBT) and other tuna species. However, there is no detailed information describing the pathological response to infection by these parasites in this species. Wild southern bluefin tuna Thunnus maccoyii (approximately 3 years of age), captured and towed to a grow-out site in the waters immediately south of Port Lincoln, South Australia were subsequently sampled (n = 10) monthly from March until August 2004 during commercial harvest operations...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28424280/the-major-envelope-glycoprotein-of-murid-herpesvirus-4-promotes-sexual-transmission
#13
Caroline Zeippen, Justine Javaux, Xue Xiao, Marina Ledecq, Jan Mast, Frédéric Farnir, Alain Vanderplasschen, Philip Stevenson, Laurent Gillet
Gammaherpesviruses are important human and animal pathogens. Infection control has proved difficult because the key process of transmission is ill-understood. Murid herpesvirus-4 (MuHV-4), a gammaherpesvirus of mice, transmits sexually. We show that this depends on the major virion envelope glycoprotein, gp150. Gp150 is redundant for host entry and, in vitro, it regulates rather than promotes cell binding. We show that gp150-deficient MuHV-4 reaches and replicates normally in the female genital tract after nasal infection, but is poorly released from vaginal epithelial cells and fails to pass from the female to the male genital tract during sexual contact...
April 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28423239/a-novel-jak-inhibitor-jte-052-reduces-skin-inflammation-and-ameliorates-chronic-dermatitis-in-rodent-models-comparison-with-conventional-therapeutic-agents
#14
Atsuo Tanimoto, Yuichi Shinozaki, Yasuo Yamamoto, Yoshiaki Katsuda, Eriko Riya, Kaoru Toyoda, Kochi Kakimoto, Yukari Kimoto, Wataru Amano, Noriko Konishi, Mikio Hayashi
Janus kinases (JAKs) are required for several inflammatory cytokine signaling pathways and are implicated in the pathogenesis of chronic dermatitis, including atopic dermatitis and psoriasis. JAK inhibitors are therefore promising therapeutic candidates for chronic dermatitis. In this study, we evaluated the effects of the novel JAK inhibitor JTE-052 on inflammatory responses associated with chronic dermatitis, and compared its profile with those of conventional therapeutic agents in rodent models of chronic dermatitis...
April 19, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28421997/laser-microdissection-coupled-with-rna-seq-reveal-cell-type-and-disease-specific-markers-in-the-salivary-gland-of-sj%C3%A3-gren-s-syndrome-patients
#15
Mayank Tandon, Paola Perez, Peter D Burbelo, Catherine Calkins, Ilias Alevizos
OBJECTIVES: Little is known about the molecular details regarding the contribution of different cell types of the salivary gland to the altered gene expression profile seen in Sjögren's syndrome (SS). METHODS: Using laser microdissection, tissue samples enriched in acini, ducts and inflammatory foci in subjects with and without SS were isolated for RNA-seq analysis. Gene expression profiles were analysed and selected enriched genes were further examined using real time PCR and by immunofluorescence...
April 18, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28421075/activation-of-adhesion-gpcr-emr2-adgre2-induces-macrophage-differentiation-and-inflammatory-responses-via-g%C3%AE-16-akt-mapk-nf-%C3%AE%C2%BAb-signaling-pathways
#16
Kuan-Yu I, Yi-Shu Huang, Ching-Hsun Hu, Wen-Yi Tseng, Chia-Hsin Cheng, Martin Stacey, Siamon Gordon, Gin-Wen Chang, Hsi-Hsien Lin
EMR2/ADGRE2 is a human myeloid-restricted adhesion G protein-coupled receptor critically implicated in vibratory urticaria, a rare type of allergy caused by vibration-induced mast cell activation. In addition, EMR2 is also highly expressed by monocyte/macrophages and has been linked to neutrophil migration and activation. Despite these findings, little is known of EMR2-mediated signaling and its role in myeloid biology. In this report, we show that activation of EMR2 via a receptor-specific monoclonal antibody promotes the differentiation of human THP-1 monocytic cell line and induces the expression of pro-inflammatory mediators, including IL-8, TNF-α, and MMP-9...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28420489/mast-cells-emerge-as-mediators-of-atherosclerosis-special-emphasis-on-il-37-inhibition
#17
REVIEW
Pio Conti, Gianfranco Lessiani, Spyridon K Kritas, Gianpaolo Ronconi, Aessandro Caraffa, Theoharis C Theoharides
In atherosclerosis lipoproteins stimulate the innate immune response, leading to the release of inflammatory cytokines and chemokines. Hypercholesterolemia may activate the synthesis and release of inflammatory cytokines such as IL-1, which induces TNF release in mast cells (MCs). IL-1 and IL-1 family members orchestrate a broadening list of inflammatory diseases, including atherosclerosis. MCs are implicated in the pathophysiology of several diseases including allergy and inflammation. Activated MCs, located perivascularly, contribute to inflammation in atherosclerosis by producing inflammatory cytokines...
April 12, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28418623/an-efficient-method-for-gene-knock-down-by-rna-interference-in-human-skin-mast-cells
#18
Tarek Hazzan, Sven Guhl, Metin Artuc, Kristin Franke, Margitta Worm, Torsten Zuberbier, Magda Babina
Mast cells (MCs) from human skin have been notoriously resistant to gene manipulation, and a method to knock-down gene expression in in situ differentiated MCs is highly desired. The Dharmacon Accell(®) transfection system proved successful on several "difficult-to-transfect" cells. In the present work, we therefore tested this method on skin-derived MCs using different siRNA entities. The siRNA was readily taken up, followed by pronounced, specific reduction of gene and protein expression. Hence, we present the first efficient technique for the manipulation of gene expression in primary skin MCs ex vivo, which combines high transfection rates with retained cell viability...
April 18, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28418519/association-of-diet-with-skin-histological-features-in-uv-b-exposed-mice
#19
Tapan K Bhattacharyya, Yvonne Hsia, David M Weeks, Tatiana K Dixon, Jessica Lepe, J Regan Thomas
Importance: Long-term exposure to solar radiation produces deleterious photoaging of the skin. It is not known if diet can influence skin photoaging. Objectives: To study the influence of a calorie-restricted diet and an obesity diet in mice exposed to long-term UV-B irradiation to assess if there is an association between diet and histopathological response to UV-B irradiation. Design, Setting, and Participants: In this animal model study in an academic setting, the dorsal skin of SKH1 hairless mice receiving normal, calorie-restricted, and obesity diets was exposed to UV-B irradiation 3 times a week for 10 weeks and were compared with corresponding controls...
April 13, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28418286/external-application-of-nf-%C3%AE%C2%BAb-inhibitor-dhmeq-suppresses-development-of-atopic-dermatitis-like-lesions-induced-with-dncb-ox-in-balb-c-mice
#20
Xiaoxue Jiang, Yi Lan, Bing Wei, Cailing Dai, Yaru Gu, Jun Ma, Xiaoyan Liu, Kazuo Umezawa, Yuyang Zhang
CONTEXT: Dehydroxymethylepoxyquinomicin (DHMEQ) which is originally developed as an analog of antibiotic epoxyquinomicin C is a specific and potent inhibitor of NF-κB and has been shown to possess promising potential as an anti-inflammatory and anti-tumor agent. OBJECTIVE: This study examines DHMEQ's effect on therapeutic potential for atopic dermatitis (AD)-like lesions. MATERIALS AND METHODS: AD lesions were chronically induced by the repetitive and alternative application of 2,4-dinitrochlorobenzene (DNCB) and oxazolone (OX) on ears in BALB/c mice...
June 2017: Immunopharmacology and Immunotoxicology
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