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https://www.readbyqxmd.com/read/29232769/antiparkinsonian-and-antidyskinetic-profiles-of-two-novel-potent-and-selective-nociceptin-orphanin-fq-receptor-agonists
#1
Ludovico Arcuri, Salvatore Novello, Martina Frassineti, Daniela Mercatelli, Clarissa Anna Pisanò, Ilaria Morella, Stefania Fasano, Blair V Journigan, Michael E Meyer, Willma E Polgar, Riccardo Brambilla, Nurulain T Zaveri, Michele Morari
BACKGROUND AND PURPOSE: We previously showed that Nociceptin/orphanin FQ opioid peptide (NOP) receptor agonists attenuate the expression of levodopa-induced dyskinesia in animal models of Parkinson's disease. We now investigate the efficacy of two novel, potent and chemically distinct NOP receptor agonists, AT-390 and AT-403, to improve parkinsonian disabilities and attenuate dyskinesia development and expression. EXPERIMENTAL APPROACH: Binding affinity and functional efficacy of AT-390 and AT-403 at the opioid receptors were determined in radioligand displacement assays and in GTPγS binding assay respectively, conducted in Chinese hamster ovary cells...
December 12, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29232767/a-comparative-immunohistochemical-study-of-anal-canal-epithelium-in-humans-and-swine-focusing-on-the-anal-transitional-zone-epithelium-and-the-anal-glands
#2
Futoshi Muranaka, Tomoyuki Nakajima, Mai Iwaya, Keiko Ishii, Kayoko Higuchi, Naoko Ogiwara, Shinichi Miyagawa, Hiroyoshi Ota
To better understand the cellular origins and differentiation of anal canal epithelial neoplasms, the immunohistochemical profiles of the anal canal epithelium in humans and swine were evaluated. Formalin-fixed tissue sections were immunostained for mucin (MUC: MUC2, MUC5AC, MUC5B), desmoglein 3 (DGS3), p63, CDX2, SOX2, and α-smooth muscle actin (α-SMA). The anal transitional zone (ATZ) epithelium covered the anal sinus and consisted of a stratified epithelium with mucous cells interspersed within the surface lining...
December 12, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29232766/combined-erlotinib-and-pf-03084014-treatment-contributes-to-synthetic-lethality-in-head-and-neck-squamous-cell-carcinoma
#3
Yang Zheng, Zhao Wang, Xu Ding, Yibo Dong, Wei Zhang, Wei Zhang, Yi Zhong, Wenyi Gu, Yunong Wu, Xiaomeng Song
OBJECTIVES: Head and neck squamous cell carcinoma (HNSCC) is characterized by high mortality and low survival rates. As an epidermal growth factor receptor (EGFR) inhibitor, Erlotinib has been approved for treatment of various tumours. PF-03084014 is a selective inhibitor of Notch1 signalling. This study aimed to explore new approaches for simultaneously targeting EGFR and Notch1 signalling to attenuate tumour growth and improve survival. MATERIALS AND METHODS: Cell proliferation was determined by CCK-8 assay and Flow cytometry...
December 12, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29232760/the-association-of-keratoconus-with-blepharitis
#4
Dina Mostovoy, Shlomo Vinker, Michael Mimouni, Yakov Goldich, Shmuel Levartovsky, Igor Kaiserman
BACKGROUND: Identifying potentially treatable risk factors for the progression of keratoconus is of great importance. The purpose of this study was to determine the association between blepharitis and keratoconus. METHODS: In this prospective, comparative, observational study, 50 keratoconus participants from the central district of the Clalit Health Services Health Maintenance Organization in Israel underwent comprehensive eye examination. Seventy-two healthy medical personnel of similar ages were randomly chosen as a control group...
December 12, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29232759/involvement-of-cyp1b1-in-interferon-%C3%AE-induced-alterations-of-epithelial-barrier-integrity
#5
Mireille Alhouayek, Sandra Gouveia-Figueira, Marie-Louise Hammarström, Christopher J Fowler
BACKGROUND AND PURPOSE: CYP1B1 and CYP1A1 are important extra hepatic cytochromes, expressed in the colon and implicated in the metabolism of dietary constituents and exogenous compounds. CYP1B1 expression is increased by pro-inflammatory cytokines and it has been recently implicated in regulation of blood brain barrier function. We investigated its involvement in the increased permeability of the intestinal epithelial barrier observed in inflammatory conditions. EXPERIMENTAL APPROACH: (IFNγ, 10 ng...
December 12, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29232718/an-arabidopsis-nucleoporin-nup85-modulates-plant-responses-to-aba-and-salt-stress
#6
Yingfang Zhu, Bangshing Wang, Kai Tang, Chuan-Chih Hsu, Shaojun Xie, Hai Du, Yuting Yang, Weiguo Andy Tao, Jian-Kang Zhu
Several nucleoporins in the nuclear pore complex (NPC) have been reported to be involved in abiotic stress responses in plants. However, the molecular mechanism of how NPC regulates abiotic stress responses, especially the expression of stress responsive genes remains poorly understood. From a forward genetics screen using an abiotic stress-responsive luciferase reporter (RD29A-LUC) in the sickle-1 (sic-1) mutant background, we identified a suppressor caused by a mutation in NUCLEOPORIN 85 (NUP85), which exhibited reduced expression of RD29A-LUC in response to ABA and salt stress...
December 12, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29232716/comparative-transcriptome-analysis-unveils-the-tolerance-mechanisms-of-citrus-hystrix-in-response-to-candidatus-liberibacter-asiaticus-infection
#7
Yan Hu, Xi Zhong, Xuelu Liu, Binghai Lou, Changyong Zhou, Xuefeng Wang
Citrus Huanglongbing (HLB), a highly devastating citrus disease, is associated with 'Candidatus Liberibacter asiacitus' (CLas), a member of phloem-inhabiting α-proteobacteria. HLB can affect all cultivated citrus and no cure is currently available. Previous studies showed that Kaffir lime (Citrus hystrix), primarily grown in South Asia and Southeast Asia, was tolerant to HLB but the molecular mechanism remains unknown. In this study, gene expression profiling experiments were performed on HLB-tolerant C. hystrix and HLB-susceptible C...
2017: PloS One
https://www.readbyqxmd.com/read/29232715/profound-loss-of-neprilysin-accompanied-by-decreased-levels-of-neuropeptides-and-increased-crp-in-ulcerative-colitis
#8
Zeynep Gök Sargın, Nuray Erin, Gokhan Tazegul, Gülsüm Özlem Elpek, Bülent Yıldırım
Neprilysin (NEP, CD10) acts to limit excessive inflammation partly by hydrolyzing neuropeptides. Although deletion of NEP exacerbates intestinal inflammation in animal models, its role in ulcerative colitis (UC) is not well explored. Herein, we aimed to demonstrate changes in NEP and associated neuropeptides at the same time in colonic tissue. 72 patients with UC and 27 control patients were included. Patients' demographic data and laboratory findings, five biopsy samples from active colitis sites and five samples from uninvolved mucosa were collected...
2017: PloS One
https://www.readbyqxmd.com/read/29232712/bioinformatic-analysis-reveals-new-determinants-of-antigenic-14-3-3-proteins-and-a-novel-antifungal-strategy
#9
Jenna E McGowan, Jacqueline Kratch, Saurabh Chattopadhyay, Bina Joe, Heather R Conti, Ritu Chakravarti
The ubiquitously expressed 14-3-3 family of proteins is evolutionarily conserved from yeast to mammals. Their involvement in humoral and cellular immune responses is emerging through studies in drosophila and humans. In humans, a select group of 14-3-3 isoforms are antigenic; however the determinants of their antigenicity are not known. Here, we show that although mammalian 14-3-3 proteins are mostly conserved, subtle differences between their isoforms may give rise to their antigenicity. We observed syntenic relations among all the isoforms of 14-3-3 for mammals, but not with that of birds or amphibians...
2017: PloS One
https://www.readbyqxmd.com/read/29232706/biventricular-differences-in-%C3%AE-adrenergic-receptor-signaling-following-burn-injury
#10
Ashley N Guillory, Robert P Clayton, Anesh Prasai, Amina El Ayadi, David N Herndon, Celeste C Finnerty
Burn injury detrimentally affects the myocardium, primarily due to over-activation of β-adrenergic receptors (β-AR). Autopsy reports from our institution reveal that patients often suffer from right ventricle (RV) failure. Since burn injury affects β-AR signaling in the left ventricle (LV), we proposed that β-AR signaling may also be altered in the RV. A rodent model with a scald burn of 60% of the total body surface area was used to test this hypothesis. Ventricles were isolated 7 days post-burn. We examined the expression of β-ARs via Western blotting and the mRNA expression of downstream signaling proteins via qRT-PCR...
2017: PloS One
https://www.readbyqxmd.com/read/29232705/etv2-mir-130a-jarid2-cascade-regulates-vascular-patterning-during-embryogenesis
#11
Bhairab N Singh, Naoyuki Tahara, Yasuhiko Kawakami, Satyabrata Das, Naoko Koyano-Nakagawa, Wuming Gong, Mary G Garry, Daniel J Garry
Remodeling of the primitive vasculature is necessary for the formation of a complex branched vascular architecture. However, the factors that modulate these processes are incompletely defined. Previously, we defined the role of microRNAs (miRNAs) in endothelial specification. In the present study, we further examined the Etv2-Cre mediated ablation of DicerL/L and characterized the perturbed vascular patterning in the embryo proper and yolk-sac. We mechanistically defined an important role for miR-130a, an Etv2 downstream target, in the mediation of vascular patterning and angiogenesis in vitro and in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/29232699/cxcr4-blockade-decreases-cd4-t-cell-exhaustion-and-improves-survival-in-a-murine-model-of-polymicrobial-sepsis
#12
Kimberly M Ramonell, Wenxiao Zhang, Annette Hadley, Ching-Wen Chen, Katherine T Fay, John D Lyons, Nathan J Klingensmith, Kevin W McConnell, Craig M Coopersmith, Mandy L Ford
Sepsis is a dysregulated systemic response to infection involving many inflammatory pathways and the induction of counter-regulatory anti-inflammatory processes that results in a state of immune incompetence and can lead to multi-organ failure. CXCR4 is a chemokine receptor that, following ligation by CXCL12, directs cells to bone marrow niches and also plays an important role in T cell cosignaling and formation of the immunological synapse. Here, we investigated the expression and function of CXCR4 in a murine model of polymicrobial sepsis...
2017: PloS One
https://www.readbyqxmd.com/read/29232698/low-energy-extracorporeal-shockwave-therapy-eswt-improves-metaphyseal-fracture-healing-in-an-osteoporotic-rat-model
#13
Gina A Mackert, Matthias Schulte, Christoph Hirche, Dimitra Kotsougiani, Julian Vogelpohl, Bernd Hoener, Teresa Fiebig, Stefanie Kirschner, Marc A Brockmann, Marcus Lehnhardt, Ulrich Kneser, Leila Harhaus
PURPOSE: As result of the current demographic changes, osteoporosis and osteoporotic fractures are becoming an increasing social and economic burden. In this experimental study, extracorporeal shock wave therapy (ESWT), was evaluated as a treatment option for the improvement of osteoporotic fracture healing. METHODS: A well-established fracture model in the metaphyseal tibia in the osteoporotic rat was used. 132 animals were divided into 11 groups, with 12 animals each, consisting of one sham-operated group and 10 ovariectomized (osteoporotic) groups, of which 9 received ESWT treatment...
2017: PloS One
https://www.readbyqxmd.com/read/29232696/effect-of-temperature-on-fatty-acid-metabolism-in-skeletal-muscle-mitochondria-of-untrained-and-endurance-trained-rats
#14
Jerzy A Zoladz, Agnieszka Koziel, Izabela Broniarek, Andrzej M Woyda-Ploszczyca, Karolina Ogrodna, Joanna Majerczak, Jan Celichowski, Zbigniew Szkutnik, Wieslawa Jarmuszkiewicz
We studied the effects of various assay temperatures, representing hypothermia (25°C), normothermia (35°C), and hyperthermia (42°C), on the oxidation of lipid-derived fuels in rat skeletal muscle mitochondria of untrained and endurance-trained rats. Adult 4-month-old male Wistar rats were assigned to a training group (rats trained on a treadmill for 8 weeks) or a sedentary control group. In skeletal muscle mitochondria of both control and trained rats, an increase in the assay temperature from 25°C to 42°C was accompanied by a consistent increase in the oxidation of palmitoylcarnitine and glycerol-3-phosphate...
2017: PloS One
https://www.readbyqxmd.com/read/29232694/hyperbranched-poly-%C3%AF%C2%B5-lysine-substrate-presenting-the-laminin-sequence-yigsr-induces-the-formation-of-spheroids-in-adult-bone-marrow-stem-cells
#15
Valeria Perugini, Steve T Meikle, Anna L Guildford, Matteo Santin
Unlike the fibroblast-like cells formed upon monolayer culture of human mesenchymal stem cells, the natural stem cell niche of the bone marrow and other types of tissues favours the formation of 3-dimensional (3D) cell clusters. The structuring and biological activity of these clusters are regulated by the contacts established by cells with both the basement membrane and neighbour cells and results in their asymmetric division and the consequent maintenance of both a stem population and a committed progeny...
2017: PloS One
https://www.readbyqxmd.com/read/29232676/progressive-development-of-aberrant-smooth-muscle-cell-phenotype-in-abdominal-aortic-aneurysm-disease
#16
Kirsten Riches, Emily Clark, Rebecca J Helliwell, Timothy G Angelini, Karen E Hemmings, Marc A Bailey, Katherine I Bridge, D Julian A Scott, Karen E Porter
Abdominal aortic aneurysm (AAA) is a silent, progressive disease with a high mortality and an increasing prevalence with aging. Smooth muscle cell (SMC) dysfunction contributes to gradual dilatation and eventual rupture of the aorta. Here we studied phenotypic characteristics in SMC cultured from end-stage human AAA (≥5 cm) and cells cultured from a porcine carotid artery (PCA) model of early and end-stage aneurysm. Human AAA-SMC presented a secretory phenotype and expressed elevated levels of the differentiation marker miR-145 (2...
December 13, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/29232670/some-galeomorph-sharks-express-a-mammalian-microglia-specific-protein-in-radial-ependymoglia-of-the-telencephalon
#17
Skirmantas Janušonis
Ionized calcium-binding adapter molecule 1 (Iba1), also known as allograft inflammatory factor 1 (AIF-1), is a highly conserved cytoplasmic scaffold protein. Studies strongly suggest that Iba1 is associated with immune-like reactions in all Metazoa. In the mammalian brain, it is abundantly expressed in microglial cells and is used as a reliable marker for this cell type. The present study used multiple-label microscopy and Western blotting to examine Iba1 expression in the telencephalon of 2 galeomorph shark species, the swellshark (Cephaloscyllium ventriosum) and the horn shark (Heterodontus francisci), a member of an ancient extant order...
December 13, 2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/29232661/downregulation-of-long-noncoding-rna-gas5-affects-cell-cycle-and-insulin-secretion-in-mouse-pancreatic-%C3%AE-cells
#18
Feiyan Jin, Ning Wang, Yanan Zhu, Lianghui You, Lintao Wang, Wei De, Wei Tang
BACKGROUND: Evidence shows that long non-coding RNAs (lncRNAs) are involved in individual development, cell differentiation, cell cycle processes and other important life processes and are closely related to major human diseases, including diabetes. Recent studies have reported that lncRNAs are involved in β cell functions and that lncRNA Gas5 levels decreased in T2DM patients' serum. The purpose of this study was to clarify the role of lncRNA Gas5 in mouse β cell functions in vitro and in vivo...
October 23, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29232660/vanishing-pancreatic-cysts-during-follow-up-another-step-towards-de-emphasizing-cyst-size-as-a-major-clinical-predictor-of-malignancy
#19
Giovanni Marchegiani, Stefano Andrianello, Giampaolo Perri, Deborah Bonamini, Riccardo De Robertis, Giuseppe Malleo, Claudio Bassi, Roberto Salvia
INTRODUCTION: In the management of pancreatic cystic neoplasms (PCN), size plays a crucial role as the expression of disease progression. While many evidences regarding the natural history of growing pancreatic cysts exist, almost no data are available regarding cysts with a reduction in size. METHODS: Radiological and clinical data from patients of the dedicated pancreatic cysts outpatient clinic of the Department of General and Pancreatic Surgery, University of Verona Hospital were retrospectively reviewed...
December 12, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/29232653/salicylic-acid-and-broad-spectrum-of-nbs-lrr-family-genes-are-involved-in-smv-soybean-interactions
#20
Qiqi Zhao, Haina Li, Hongyu Sun, Aoga Li, Shuxin Liu, Ruonan Yu, Xiuqi Cui, Dejian Zhang, Hada Wuriyanghan
Soybean mosaic virus (SMV) is a severe pathogen reducing crop yield and seed quality of soybean. Although several resistance gene loci including Rsv1, Rsv3 and Rsv4 are identified in some soybean varieties, most of the soybean genes related to SMV infection are still not characterized. In order to reveal genome-wide gene expression profiles in response to SMV infection, we used transcriptome analysis to determine SMV-responsive genes in susceptible variety Hefeng25. Time course RNA-seq analysis at 1, 5 and 10 dpi identified many deregulated pathways and gene families...
December 7, 2017: Plant Physiology and Biochemistry: PPB
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