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https://www.readbyqxmd.com/read/28341659/chronic-microaspiration-of-bile-acids-induces-lung-fibrosis-through-multiple-mechanisms-in-rats
#1
Bi Chen, Wen Jie You, Xue Qing Liu, Shan Xue, Hui Qin, Han Dong Jiang
Gastroesophageal reflux (GER) and microaspiration of duodenogastric refluxate have been recognized as a risk factor for pulmonary fibrosis. Recent evidence implicates that bile acid microaspiration may contribute to the development of lung fibrosis. However, the molecular evidences are scarce and the underlying mechanisms remain to be elucidated. We have recently demonstrated that bile acids induce activation of alveolar epithelial cells and lung fibroblasts in vitro In this study, a rat model of bile acid microaspiration was established by weekly intratracheal instillation of three major bile acids including chenodeoxycholic acid (CDCA), deoxycholic acid (DCA) and lithocholic acid (LCA) ...
March 24, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28339887/periostin-paves-the-way-for-neonatal-heart-regeneration
#2
James E Hudson, Enzo R Porrello
No abstract text is available yet for this article.
February 28, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28337873/cyclosporine%C3%A2-a-augments-endoplasmic-reticulum-stress-markers-and-expression-of-matrix-protein-mrna
#3
S R Rao, R Subbarayan, D M Girija
Cyclosporine-A induces gingival overgrowth with disturbance in the homeostasis of cells and connective tissue proteins. Human gingival fibroblasts were cultured with cyclosporine A, and the expression of two vital endoplasmic stress markers and two prime matrix proteins (connective tissue growth factor (CTGF and periostin) were assessed by RT-PCR. We found that expression of Glucose-Regulated Protein 78 (GRP78/BIP) and CCAAT/enhancer binding protein, C/EBP homologous protein (CHOP) were significantly increased, along with CTGF and periostin, suggesting a role for these factors in gingival overgrowth...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28329269/proteomics-highlights-decrease-of-matricellular-proteins-in-left-ventricular-assist-device-therapy%C3%A2
#4
Jasmin Hasmik Shahinian, Bettina Mayer, Stefan Tholen, Kerstin Brehm, Martin L Biniossek, Hannah Füllgraf, Selina Kiefer, Ulrike Heizmann, Claudia Heilmann, Florian Rüter, Martin Grapow, Oliver Thomas Reuthebuch, Friedrich Eckstein, Friedhelm Beyersdorf, Oliver Schilling, Matthias Siepe
OBJECTIVES: We investigated the impact of mechanical unloading with a left ventricular assist device (LVAD) on the myocardial proteome. METHODS: We collected 11 patient-matched samples of myocardial left ventricular tissue of patients with non-ischaemic dilate cardiomyopathy, harvested at time of LVAD implant ('pre-LVAD') and heart transplant ('post-LVAD'). Samples were studied by quantitative proteomics. Further we performed histological assessment of deposited collagens and immune infiltration in both pre- and post-LVAD samples...
February 20, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28326636/il4r%C3%AE-and-adam33-as-genetic-markers-in-asthma-exacerbations-and-type-2-inflammatory-endotype
#5
Hironobu Sunadome, Hisako Matsumoto, Guergana Petrova, Yoshihiro Kanemitsu, Yuji Tohda, Takahiko Horiguchi, Hideo Kita, Kazunobu Kuwabara, Keisuke Tomii, Kojiro Otsuka, Masaki Fujimura, Noriyuki Ohkura, Katsuyuki Tomita, Akihito Yokoyama, Hiroshi Ohnishi, Yasutaka Nakano, Tetsuya Oguma, Soichiro Hozawa, Tadao Nagasaki, Isao Ito, Tsuyoshi Oguma, Hideki Inoue, Tomoko Tajiri, Toshiyuki Iwata, Yumi Izuhara, Junya Ono, Shoichiro Ohta, Tomomitsu Hirota, Mayumi Tamari, Tetsuji Yokoyama, Akio Niimi, Kenji Izuhara, Michiaki Mishima
BACKGROUND: Genetic markers of susceptibility to asthma exacerbations in adults remain unclear. OBJECTIVE: To identify genetic markers of asthma exacerbations, particularly in patients with type-2 inflammatory endotype. METHODS: In this observational study of patients enrolled in the Kinki Hokuriku Airway disease Conference multicenter study, frequency of exacerbations requiring systemic corticosteroids during 2 years after enrolment and associated risk factors were determined...
March 22, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28325294/therapeutic-effect-of-novel-single-stranded-rnai-agent-targeting-periostin-in-eyes-with-retinal-neovascularization
#6
Takahito Nakama, Shigeo Yoshida, Keijiro Ishikawa, Yuki Kubo, Yoshiyuki Kobayashi, Yedi Zhou, Shintaro Nakao, Toshio Hisatomi, Yasuhiro Ikeda, Kazumasa Takao, Kazunori Yoshikawa, Akira Matsuda, Junya Ono, Shoichiro Ohta, Kenji Izuhara, Akira Kudo, Koh-Hei Sonoda, Tatsuro Ishibashi
Retinal neovascularization (NV) due to retinal ischemia remains one of the principal causes of vision impairment in patients with ischemic retinal diseases. We recently reported that periostin (POSTN) may play a role in the development of preretinal fibrovascular membranes, but its role in retinal NV has not been determined. The purpose of this study was to examine the expression of POSTN in the ischemic retinas of a mouse model of oxygen-induced retinal NV. We also studied the function of POSTN on retinal NV using Postn KO mice and human retinal endothelial cells (HRECs) in culture...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28323143/effect-of-age-and-gender-on-serum-periostin-relationship-to-cortical-measures-bone-turnover-and-hormones
#7
Jennifer S Walsh, Fatma Gossiel, Jessica R Scott, Margaret A Paggiosi, Richard Eastell
Periostin is an extracellular matrix protein, and in bone is expressed most highly in the periosteum. It increases bone formation through osteoblast differentiation, cell adhesion, Wnt signalling and collagen cross-linking. We hypothesised that serum periostin would be high at times of life when cortical modeling is active, in early adulthood and in older age, and that it would correlate with cortical bone measures, bone turnover and hormones that regulate cortical modeling. We conducted a cross-sectional observational study of 166 healthy men and women at three skeletal stages; the end of longitudinal growth (16-18years), peak bone mass (30-32years) and older age (over 70years)...
March 16, 2017: Bone
https://www.readbyqxmd.com/read/28322464/cathepsin-k-controls-cortical-bone-formation-by-degrading-periostin
#8
Nicolas Bonnet, Julia Brun, Jean-Charles Rousseau, Le T Duong, Serge L Ferrari
While inhibitors of bone resorption concomitantly reduce bone formation because of the coupling between osteoclasts and osteoblasts, inhibition or deletion of cathepsin k (CatK) stimulates bone formation despite decreasing resorption. The molecular mechanisms responsible for this increase in bone formation, particularly at periosteal surfaces where osteoclasts are relatively poor, remain unclear. Here we show that CatK pharmacological inhibition or deletion (Ctsk(-/-) mice) potentiates mechanotransduction signals mediating cortical bone formation...
March 21, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28301220/periostin-promotes-migration-proliferation-and-differentiation-of-human-periodontal-ligament-mesenchymal-stem-cells
#9
Ziqiang Wu, Wenyong Dai, Pei Wang, Xiaozhen Zhang, Yi Tang, Lin Liu, Qiaona Wang, Ming Li, Chunbo Tang
PURPOSE: Periostin (POSTN) is critical to bone and dental tissue morphogenesis, postnatal development, and maintenance, however, its roles in tissue repair and regeneration mediated by human periodontal ligament mesenchymal stem cells (PDLSCs) remain unclear. The present study was designed to evaluate the effects of POSTN on hPDLSCs in vitro. MATERIALS AND METHODS: hPDLSCs were isolated and characterized by their expression of the cell surface markers CD44, CD90, CD105, CD34, and CD45...
March 16, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28293414/galectin-3-an-early-predictive-biomarker-of-modulation-of-airway-remodeling-in-patients-with-severe-asthma-treated-with-omalizumab-for-36%C3%A2-months
#10
Anna Maria Riccio, Pierluigi Mauri, Laura De Ferrari, Rossana Rossi, Dario Di Silvestre, Louise Benazzi, Alessandra Chiappori, Roberto Walter Dal Negro, Claudio Micheletto, Giorgio Walter Canonica
BACKGROUND: Bronchial asthma is a heterogeneous disease characterized by three cardinal features: chronic inflammation, variable airflow obstruction, and airway hyperresponsiveness. Asthma has traditionally been defined using nonspecific clinical and physiologic variables that encompass multiple phenotypes and are treated with nonspecific anti-inflammatory therapies. Based on the modulation of airway remodeling after 12 months of anti-immunoglobulin E (IgE) treatment, we identified two phenotypes (omalizumab responder, OR; and non-omalizumab responder, NOR) and performed morphometric analysis of bronchial biopsy specimens...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/28282516/f-spondin-negatively-regulates-dental-follicle-differentiation-through-the-inhibition-of-tgf-%C3%AE-activity
#11
Ai Orimoto, Misaki Kurokawa, Keisuke Handa, Masaki Ishikawa, Eisaku Nishida, Makoto Aino, Akio Mitani, Miho Ogawa, Takashi Tsuji, Masahiro Saito
OBJECTIVE: F-spondin is an extracellular matrix (ECM) protein that belongs to the thrombospondin type I repeat superfamily and is a negative regulator of bone mass. We have previously shown that f-spondin is specifically expressed in the dental follicle (DF), which gives rise to the periodontal ligament (PDL) during the tooth root formation stage. To investigate the molecular mechanism of PDL formation, we investigated the function of f-spondin in DF differentiation. DESIGN: The expression patterning of f-spondin in the developing tooth germ was compared with that of periodontal ligament-related genes, including runx2, type I collagen and periostin, by in situ hybridization analysis...
March 1, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28273538/differential-effects-of-bisphenol-a-toxicity-on-oyster-crassostrea-angulata-gonads-as-revealed-by-label-free-quantitative-proteomics
#12
Lianzhong Luo, Qinghong Zhang, Xue Kong, Heqing Huang, Caihuan Ke
Bisphenol A (BPA) is widely used in industry, and is released in large amounts into the environment. BPA is a teratogen and an estrogen receptor agonist and negatively affects reproduction, particularly in aquatic animals, which is of concern for the aquaculture industry. Although there is a large body of literature on the mechanisms that underlie BPA disruption and the effects of different toxicities on invertebrate reproduction, many of the mechanisms involved in invertebrate responses to BPA remain unknown...
February 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28271451/the-utility-of-biomarkers-in-osteoporosis-management
#13
REVIEW
Patrick Garnero
The measurement of bone turnover markers is useful for the clinical investigation of patients with osteoporosis. Among the available biochemical markers, the measurements of serum procollagen type I N-terminal propeptide (PINP) and the crosslinked C-terminal telopeptide (serum CTX) have been recommended as reference markers of bone formation and bone resorption, respectively. The important sources of preanalytical and analytical variability have been identified for both markers, and precise measurement can now be obtained...
March 7, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28260907/effect-of-orlistat-on-periostin-adiponectin-inflammatory-markers-and-ultrasound-grades-of-fatty-liver-in-obese-nafld-patients
#14
Rashid Ali Khan, Prem Kapur, Abhinav Jain, Farrukh Farah, Uma Bhandari
Orlistat is recommended in the treatment of obesity, which is an independent risk factor for nonalcoholic fatty liver disease (NAFLD). The reported findings of orlistat in NAFLD are divisive. Recently, periostin is identified as an important regulatory molecule in the pathogenesis of obesity-induced fatty liver. Therefore, this study aimed to evaluate the potential effects of orlistat in the treatment of NAFLD. A 16-week prospective observational study was conducted, with obese NAFLD patient (n=77) receiving orlistat (120 mg capsules, three times a day) with hypocaloric diet or hypocaloric diet only...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28260019/periostin-is-essential-for-periodontal-ligament-remodeling-during-orthodontic-treatment
#15
Hui-Yong Xu, Er-Min Nie, Gang Deng, Ling-Zhi Lai, Feng-Yang Sun, Hua Tian, Fu-Chun Fang, Ya-Guang Zou, Bu-Ling Wu, Jun Ou-Yang
Orthodontic tooth movement is a process stimulated and maintained by external tensile stress; periodontal ligament remodeling serves an important role during this process. However, the function and underlying mechanism of periostin (PN) during orthodontic periodontal ligament remodeling remain unclear. The present study established in vitro and in vivo models of orthodontic treatment to investigate the expression levels of PN under conditions of external tensile stress load. These results indicated that tensile stress load increased the expression levels of PN in mouse peridontal ligaments and human periodontal ligament cells (hPDLCs), during orthodontic tooth movement...
April 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28256388/utility-of-serum-periostin-in-combination-with-exhaled-nitric-oxide-in-the-management-of-asthma
#16
REVIEW
Tadao Nagasaki, Hisako Matsumoto, Kenji Izuhara
Type-2/eosinophilic inflammation plays a pivotal role in asthma. The identification of severe type-2/eosinophilic asthma is important for improving the management of patients with asthma. Therefore, efforts to develop non-invasive biomarkers for type-2/eosinophilic airway inflammation have been made during this decade. Currently, fraction of exhaled nitric oxide (FeNO) and serum periostin levels are considered markers of type-2/eosinophilic inflammation in asthma. However, a single-marker approach has limited the ability to diagnose severe type-2/eosinophilic asthma accurately and predict disease outcomes precisely...
February 27, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28248547/serum-periostin-as-a-biomarker-for-comorbid-chronic-rhinosinusitis-in-patients-with-asthma
#17
Takamitsu Asano, Yoshihiro Kanemitsu, Masaya Takemura, Makoto Yokota, Kensuke Fukumitsu, Norihisa Takeda, Hiroya Ichikawa, Takehiro Uemura, Osamu Takakuwa, Hirotsugu Ohkubo, Ken Maeno, Yutaka Ito, Tetsuya Oguri, Yumi Maki, Junya Ono, Shoichiro Ohta, Yoshihisa Nakamura, Kenji Izuhara, Motohiko Suzuki, Akio Niimi
RATIONALE: Periostin is a matricellular protein that is involved in the pathophysiology of allergic rhinitis, chronic rhinosinusitis, and asthma. Associations of serum periostin with systemic and airway eosinophilic inflammation and comorbid chronic rhinosinusitis in patients with asthma have been demonstrated. Although serum periostin is positioned as a marker of helper T cell 2 (Th2) immune responses, its implication regarding the presence of comorbid upper airway diseases in patients with asthma remains unclear...
March 1, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28248008/can-biomarkers-help-us-hit-targets-in-difficult-to-treat-asthma
#18
REVIEW
Michael Fricker, Liam G Heaney, John W Upham
Biomarkers may be a key foundation for the precision medicine of the future. In this article, we review current knowledge regarding biomarkers in difficult-to-treat asthma and their ability to guide the use of both conventional asthma therapies and novel (targeted) therapies. Biomarkers (as measured by tests including prednisolone and cortisol assays and the fractional exhaled nitric oxide (NO) suppression test) show promise in the assessment and management of non-adherence to inhaled and oral corticosteroids...
April 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28242775/role-of-periostin-in-early-brain-injury-after-subarachnoid-hemorrhage-in-mice
#19
Lei Liu, Fumihiro Kawakita, Masashi Fujimoto, Fumi Nakano, Kyoko Imanaka-Yoshida, Toshimichi Yoshida, Hidenori Suzuki
BACKGROUND AND PURPOSE: A matricellular protein tenascin-C is implicated in early brain injury after experimental subarachnoid hemorrhage (SAH). This study first evaluated the role of another matricellular protein periostin and the relationships with tenascin-C in post-SAH early brain injury. METHODS: Wild-type (n=226) and tenascin-C knockout (n=9) C57BL/6 male adult mice underwent sham or filament perforation SAH modeling. Vehicle, anti-periostin antibody, or recombinant periostin was randomly administrated by an intracerebroventricular injection at 30 minutes post-modeling...
February 27, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28239033/hertwig-s-epithelial-root-sheath-cells-contribute-to-formation-of-periodontal-ligament-through-epithelial-mesenchymal-transition-by-tgf-%C3%AE
#20
Satoshi Itaya, Kyoko Oka, Kayoko Ogata, Shougo Tamura, Michiko Kira-Tatsuoka, Naoki Fujiwara, Keishi Otsu, Eichi Tsuruga, Masao Ozaki, Hidemitsu Harada
In tooth root development, periodontal ligament (PDL) and cementum are formed by the coordination with the fragmentation of Hertwig's epithelial root sheath (HERS) and the differentiation of dental follicle mesenchymal cells. However, the function of the dental epithelial cells after HERS fragmentation in the PDL is not fully understood. Here, we found that TGF-β regulated HERS fragmentation via epithelial-mesenchymal transition (EMT), and the fragmented epithelial cells differentiated into PDL fibroblastic cells with expressing of PDL extracellular matrix (ECM)...
2017: Biomedical Research
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