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https://www.readbyqxmd.com/read/28812124/clozapine-chlorpromazine-and-risperidone-dose-dependently-reduce-emotional-hyperthermia-a-biological-marker-of-salience
#1
William W Blessing, Esther M Blessing, Mazher Mohammed, Youichirou Ootsuka
RATIONALE: We recently introduced a new rat model of emotional hyperthermia in which a salient stimulus activates brown adipose tissue (BAT) thermogenesis and tail artery constriction. Antipsychotic drugs, both classical and second generation, act to reduce excessive assignment of salience to objects and events in the external environment. The close association between salient occurrences and increases in body temperature suggests that antipsychotic drugs may also reduce emotional hyperthermia...
August 15, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28811503/lacrimal-gland-repair-after-short-term-obstruction-of-excretory-duct-in-rabbits
#2
Hui Lin, Ying Liu, Hong He, Benjamin Botsford, Samuel Yiu
Aqueous tear-deficient dry eye is a multifactorial chronic disorder in which the lacrimal glands fail to produce enough tears to maintain a healthy ocular surface. The existence of lacrimal gland stem/progenitor cells was proposed in several species, yet their origin and characteristics are not very clear. Here, we investigated the presence of resident progenitor cells and their regenerative potential in a rabbit model with lacrimal gland main excretory duct ligation-induced injury. The ligation-injured lacrimal glands temporarily decreased in weight and had impaired tear secretion...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811330/epithelial-to-mesenchymal-and-mesenchymal-to-epithelial-transition-in-mesenchymal-tumors-a-paradox-in-sarcomas
#3
REVIEW
Giuseppina Sannino, Aruna Marchetto, Thomas Kirchner, Thomas G P Grünewald
The epithelial-to-mesenchymal transition (EMT) is a reversible process comprised of various subprograms via which epithelial cells reduce their intercellular adhesions and proliferative capacity while gaining a mesenchymal phenotype with increased migratory and invasive properties. This process has been well described in several carcinomas, which are cancers of epithelial origin, and is crucial to metastatic tumor cell dissemination and drug resistance. In contrast, the precise role of EMT-related processes in tumors originating from mesenchymal tissues, such as bone and soft-tissues sarcomas, is still largely unclear...
August 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28811324/the-transcriptional-program-functional-heterogeneity-and-clinical-targeting-of-mast-cells
#4
REVIEW
Gökhan Cildir, Harshita Pant, Angel F Lopez, Vinay Tergaonkar
Mast cells are unique tissue-resident immune cells that express an array of receptors that can be activated by several extracellular cues, including antigen-immunoglobulin E (IgE) complexes, bacteria, viruses, cytokines, hormones, peptides, and drugs. Mast cells constitute a small population in tissues, but their extraordinary ability to respond rapidly by releasing granule-stored and newly made mediators underpins their importance in health and disease. In this review, we document the biology of mast cells and introduce new concepts and opinions regarding their role in human diseases beyond IgE-mediated allergic responses and antiparasitic functions...
August 15, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28811310/live-fate-mapping-of-joint-associated-fibroblasts-visualizes-expansion-of-cell-contributions-during-zebrafish-fin-regeneration
#5
Valerie A Tornini, John D Thompson, Raymond L Allen, Kenneth D Poss
The blastema is a mass of progenitor cells responsible for regeneration of amputated salamander limbs and fish fins. Previous studies have indicated that resident cell sources producing the blastema contribute lineage-restricted progeny to regenerating tissue. However, these studies have labeled general cell types rather than granular cell subpopulations, and they do not explain the developmental transitions that must occur for distal structures to arise from cells with proximal identities in the appendage stump...
August 15, 2017: Development
https://www.readbyqxmd.com/read/28807411/timp3-is-regulated-by-pericytes-upon-shear-stress-detection-leading-to-a-modified-endothelial-cell-response
#6
C Schrimpf, T Koppen, J S Duffield, U Böer, S David, W Ziegler, A Haverich, O E Teebken, M Wilhelmi
OBJECTIVES: Atherosclerosis is a hallmark of cardiovascular disease. Shear stress on endothelial cells has been linked to atherogenesis and to fibrous cap thinning and rupture. Pericytes reside in the sub-endothelial space of vessels and have vasoprotective effects. They are subjected to shear stress when endothelial cell integrity is disrupted. The aim was to investigate the susceptibility and response of pericytes to shear stress. METHODS: Endothelial cells and pericytes were seeded in two dimensional monocultures and co-cultures, and in a novel three dimensional co-culture system and were subjected to no, low and high shear stress (0, 10, 30 dyne/cm(2)) for 48 h...
August 11, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28804705/possible-involvement-of-liver-resident-macrophages-kupffer-cells-in-the-pathogenesis-of-both-intrahepatic-and-extrahepatic-inflammation
#7
Yuki Kakinuma, Takuya Kimura, Yoshifumi Watanabe
Liver resident macrophages designated Kupffer cells (KCs) form the largest subpopulation of tissue macrophages. KCs are involved in the pathogenesis of liver inflammation. However, the role of KCs in the systemic inflammation is still elusive. In this study, we examined whether KCs are involved in not only intrahepatic inflammation but also extrahepatic systemic inflammation. Administration of clodronate liposomes resulted in the KC deletion and in the suppression of liver injury in T cell-mediated hepatitis by ConA as a local acute inflammation model, while the treatment did not influence dextran sulfate sodium- (DSS-) induced colitis featured by weight loss, intestinal shrink, and pathological observation as an ectopic local acute inflammation model...
2017: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28803726/golgi-resident-g%C3%AE-o-promotes-protrusive-membrane-dynamics
#8
Gonzalo P Solis, Oleksii Bilousov, Alexey Koval, Anne-Marie Lüchtenborg, Chen Lin, Vladimir L Katanaev
To form protrusions like neurites, cells must coordinate their induction and growth. The first requires cytoskeletal rearrangements at the plasma membrane (PM), the second requires directed material delivery from cell's insides. We find that the Gαo-subunit of heterotrimeric G proteins localizes dually to PM and Golgi across phyla and cell types. The PM pool of Gαo induces, and the Golgi pool feeds, the growing protrusions by stimulated trafficking. Golgi-residing KDELR binds and activates monomeric Gαo, atypically for G protein-coupled receptors that normally act on heterotrimeric G proteins...
August 7, 2017: Cell
https://www.readbyqxmd.com/read/28802693/diversity-of-tissue-resident-nk-cells
#9
REVIEW
Hui Peng, Zhigang Tian
Although natural killer (NK) cells were initially named for their spontaneous tumor-killing capacity, their concept has been greatly expanded with more than 40 years of extensive investigation. Currently, NK cells are known as a heterogeneous population of innate lymphoid cell (ILC) family, consisting of different subsets with unique phenotypic and functional features. Recent studies have shown that tissue-resident NK (trNK) cells, which are distinct from conventional NK (cNK) cells, preferentially distribute in non-lymphoid tissues, such as the liver, uterus, salivary gland, and adipose...
August 9, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28801440/baseline-data-from-a-planned-rct-on-attitudes-to-female-genital-cutting-after-migration-when-are-interventions-justified
#10
Anna Wahlberg, Sara Johnsdotter, Katarina Ekholm Selling, Carina Källestål, Birgitta Essén
OBJECTIVES: To present the primary outcomes from a baseline study on attitudes towards female genital cutting (FGC) after migration. DESIGN: Baseline data from a planned cluster randomised, controlled trial. Face-to-face interviews were used to collect questionnaire data in 2015. Based on our hypothesis that established Somalis could be used as facilitators of change among those newly arrived, data were stratified into years of residency in Sweden. SETTING: Sweden...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28801233/t-cell-zone-resident-macrophages-silently-dispose-of-apoptotic-cells-in-the-lymph-node
#11
Myriam Baratin, Léa Simon, Audrey Jorquera, Clément Ghigo, Doulaye Dembele, Jonathan Nowak, Rebecca Gentek, Stephan Wienert, Frederick Klauschen, Bernard Malissen, Marc Dalod, Marc Bajénoff
In lymph nodes (LNs), dendritic cells (DCs) are thought to dispose of apoptotic cells, a function pertaining to macrophages in other tissues. We found that a population of CX3CR1(+) MERTK(+) cells located in the T cell zone of LNs, previously identified as DCs, are efferocytic macrophages. Lineage-tracing experiments and shield chimeras indicated that these T zone macrophages (TZM) are long-lived macrophages seeded in utero and slowly replaced by blood monocytes after birth. Imaging the LNs of mice in which TZM and DCs express different fluorescent proteins revealed that TZM-and not DCs-act as the only professional scavengers, clearing apoptotic cells in the LN T cell zone in a CX3CR1-dependent manner...
August 4, 2017: Immunity
https://www.readbyqxmd.com/read/28800756/lawsonia-intracellularis-in-the-feces-of-wild-rodents-and-stray-cats-captured-around-equine-farms
#12
Jeong-Min Hwang, Myung-Ji Seo, Jung-Yong Yeh
BACKGROUND: Proliferative enteropathy is a global enteric disease of particular importance in pigs. The causative bacterium, Lawsonia intracellularis, has a wide range of susceptible host species. Recently, L. intracellularis has been recognized as an etiologic agent of an emerging enteric disease in foals called equine proliferative enteropathy (EPE). The presence of L. intracellularis in nonruminant wildlife has raised questions regarding the role of these species in EPE transmission...
August 11, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28799757/immobilization-of-growth-factors-to-collagen-surfaces-using-visible-light
#13
Gabriella Maria Fernandes Cunha, Hyun Jong Lee, Alisha Kumar, Alexander Kreymerman, Sarah Christine Heilshorn, David Myung
In the treatment of traumatic injuries, burns, and ulcers of the eye, inadequate epithelial tissue healing remains a major challenge. Wound healing is a complex process involving the temporal and spatial interplay between cells and their extracellular milieu. It can be impaired by a variety of causes including infection, poor circulation, loss of critical cells and/or proteins, and a deficiency in normal neural signaling (e.g. neurotrophic ulcers). Ocular anatomy is particularly vulnerable to lasting morbidity from delayed healing, whether it be scarring or perforation of the cornea, destruction of the conjunctival mucous membrane, or cicatricial changes to the eyelids and surrounding skin...
August 11, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28799667/coadministration-of-isomalto-oligosaccharides-augments-metabolic-health-benefits-of-cinnamaldehyde-in-high-fat-diet-fed-mice
#14
Dhirendra Pratap Singh, Pragyanshu Khare, Vandana Bijalwan, Ritesh Kumar Baboota, Jagdeep Singh, Kanthi Kiran Kondepudi, Kanwaljit Chopra, Mahendra Bishnoi
Bacteriostatic properties of a potential anti-obesity agent cinnamaldehyde (CMN) may present untoward effects on the resident gut microbiota. Here, we evaluated whether the combination of Isomalto-oligosaccharides (IMOs) with CMN prevents unwanted effects of CMN on gut microbiota and associated metabolic outcomes in HFD-fed mice. Male Swiss albino mice divided into four groups (n = 10), were fed on normal chow, or HFD (58% fat kcal), HFD + CMN (10 mg kg(-1) ) and HFD + CMN (10 mg kg(-1) ) + IMOs (1 g kg(-1) ) for 12 weeks...
August 11, 2017: BioFactors
https://www.readbyqxmd.com/read/28799653/kindlin-2-interacts-with-endothelial-adherens-junctions-to-support-vascular-barrier-integrity
#15
Elzbieta Pluskota, Kamila M Bledzka, Katarzyna Bialkowska, Dorota Szpak, Dmitry A Soloviev, Sidney Jones, Dmitriy Verbovetskiy, Edward F Plow
Endothelial cells (EC) establish a physical barrier between the blood and surrounding tissue. Impairment of this barrier can occur during inflammation, ischemia or sepsis and cause severe organ dysfunction. Kindlin-2, primarily recognized as a focal adhesion protein in EC, was not anticipated to have a role in vascular barrier. We tested the role of Kindlin-2 in regulating vascular integrity using several different approaches to decrease Kindlin-2 levels in EC. Reduced levels of Kindlin-2 in Kindlin-2(+/-) mice, aortic endothelial cells (MAECs) from these(-) mice, and human umbilical ECs (HUVEC) treated with Kindlin-2 siRNA showed enhanced basal and Platelet Activating Factor (PAF) or lipopolysaccharide-stimulated vascular leakage compared to wild-type (WT) counterparts...
August 11, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28798979/mucosa-associated-invariant-t-cells-infiltrate-hepatic-metastases-in-patients-with-colorectal-carcinoma-but-are-rendered-dysfunctional-within-and-adjacent-to-tumor-microenvironment
#16
Christopher R Shaler, Mauro E Tun-Abraham, Anton I Skaro, Khashayarsha Khazaie, Alexandra J Corbett, Tina Mele, Roberto Hernandez-Alejandro, S M Mansour Haeryfar
Mucosa-associated invariant T (MAIT) cells are innate-like T lymphocytes that are unusually abundant in the human liver, a common site of colorectal carcinoma (CRC) metastasis. However, whether they contribute to immune surveillance against colorectal liver metastasis (CRLM) is essentially unexplored. In addition, whether MAIT cell functions can be impacted by chemotherapy is unclear. These are important questions given MAIT cells' potent immunomodulatory and inflammatory properties. Herein, we examined the frequencies and functions of peripheral blood, healthy liver tissue, tumor-margin and tumor-infiltrating MAIT cells in 21 CRLM patients who received no chemotherapy, FOLFOX, or a combination of FOLFOX and Avastin before they underwent liver resection...
August 10, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28797737/nkt-cells-are-important-mediators-of-hepatic-ischemia-reperfusion-injury
#17
James A Richards, Stephen J Wigmore, Stephen M Anderton, Sarah E M Howie
INTRODUCTION: IRI results from the interruption then reinstatement of an organ's blood supply, and this poses a significant problem in liver transplantation and resectional surgery. In this paper, we explore the role T cells play in the pathogenesis of this injury. MATERIALS & METHODS: We used an in vivo murine model of warm partial hepatic IRI, genetically-modified mice, in vivo antibody depletion, adoptive cell transfer and flow cytometry to determine which lymphocyte subsets contribute to pathology...
August 7, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28794497/the-trophic-role-of-a-large-marine-predator-the-tiger-shark-galeocerdo-cuvier
#18
Luciana C Ferreira, Michele Thums, Michael R Heithaus, Adam Barnett, Kátya G Abrantes, Bonnie J Holmes, Lara M Zamora, Ashley J Frisch, Julian G Pepperell, Derek Burkholder, Jeremy Vaudo, Robert Nowicki, Jessica Meeuwig, Mark G Meekan
Tiger sharks were sampled off the western (Ningaloo Reef, Shark Bay) and eastern (the Great Barrier Reef; GBR, Queensland and New South Wales; NSW) coastlines of Australia. Multiple tissues were collected from each shark to investigate the effects of location, size and sex of sharks on δ(13)C and δ(15)N stable isotopes among these locations. Isotopic composition of sharks sampled in reef and seagrass habitats (Shark Bay, GBR) reflected seagrass-based food-webs, whereas at Ningaloo Reef analysis revealed a dietary transition between pelagic and seagrass food-webs...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28792982/proliferative-capacity-exhibited-by-human-liver-resident-cd49a-cd25-nk-cells
#19
Glòria Martrus, Tobias Kautz, Sebastian Lunemann, Laura Richert, Laura Glau, Wilhelm Salzberger, Hanna Goebels, Annika Langeneckert, Leonard Hess, Tobias Poch, Christoph Schramm, Karl J Oldhafer, Martina Koch, Eva Tolosa, Björn Nashan, Marcus Altfeld
The recruitment and retention of Natural Killer (NK) cells in the liver are thought to play an important role during hepatotropic infections and liver cirrhosis. The aims of this study were to determine differences between liver-derived and peripheral blood-derived NK cells in the context of liver inflammation and cirrhosis. We conducted a prospective dual-center cross-sectional study in patients undergoing liver transplantation or tumor-free liver resections, in which both liver tissue and peripheral blood samples were obtained from each consenting study participants...
2017: PloS One
https://www.readbyqxmd.com/read/28789668/two-years-retrospective-study-of-maxillofacial-trauma-at-a-tertiary-center-in-north-west-ethiopia
#20
Amare Teshome, Getaneh Andualem, Rediet Tsegie, Samuel Seifu
BACKGROUND: Maxillofacial injury poses a challenge to oral and maxillofacial surgeons working in developing countries with limited resource and human power. The present study aimed to determine the etiology, pattern, and management of maxillofacial trauma in Gondar university of Gondar hospital. METHODS: A retrospective descriptive study design was used. Medical registration retrieving of patients with maxillofacial trauma visited dental center of University of Gondar Hospital from September 2013 to August 2015 was done...
August 8, 2017: BMC Research Notes
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