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Metalloproteinase 9

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https://www.readbyqxmd.com/read/28326725/-analysis-of-salivary-protease-spectrum-in-chronic-periodontitis
#1
Li Qian, Zhou Xuedong, Fan Yaping, Yang Tengyu, Wu Songtao, Yu Yu, Chen Jiao, Zhang Ping, Feng Yun
OBJECTIVE: This study aimed to investigate the difference in salivary protease expression in patients with chronic periodontitis and normal individuals. METHODS: The stimulating saliva in patients with chronic periodontitis and normal individuals were collected. Protein chip technology was adapted to analyze salivary protease spectrum. RESULTS: Among the 34 proteases in the chip, disintegrin and metalloproteinase (ADAM)8, matrix metalloproteinase (MMP)-8, MMP-12, neprilysin/CD10, and uridylyl phosphate adenosine/urokinase showed a significantly increased concentration in the saliva of chronic periodontitis patients compared with those in the saliva of normal individuals (P<0...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28322956/polysaccharide-of-black-cumin-nigella-sativa-modulates-molecular-signaling-cascade-of-gastric-ulcer-pathogenesis
#2
Srikanta Belagihalli Manjegowda, Harsha Mysore Rajagopal, Shylaja Mallaiah Dharmesh
Gastric ulcer is a multi-step disease and healing requires a complex process including repair and re-architecture of gastric mucosa with the involvement of molecular events. Current study was designed to understand the gastric ulcer healing mechanism of rhamnogalacturonan-I type pectic polysaccharide of black cumin (BCPP) utilizing acetic acid induced gastric ulcers in rats. BCPP fed groups at 200mg/kg b.w. for 10days showed up to 85% healing of gastric ulcers with modulation of key molecular events involved in ulcer healing process such as increase in gastric mucin content, cyclooxygenase-2 (Cox-2) and prostaglandin E2 (PGE2)...
March 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28321852/active-matrix-metalloproteinase-8-and-periodontal-bacteria-depending-on-periodontal-status-in-patients-with-rheumatoid-arthritis
#3
A Kirchner, J Jäger, B Krohn-Grimberghe, S Patschan, T Kottmann, G Schmalz, R F Mausberg, R Haak, D Ziebolz
BACKGROUND AND OBJECTIVES: The aim of this clinical cross-sectional study was to determine the level of active matrix metalloproteinase-8 (aMMP-8) and periodontal pathogenic bacteria in gingival crevicular fluid in patients with rheumatoid arthritis (RA) with varying periodontal conditions. MATERIAL AND METHODS: In total, 103 patients with RA and 104 healthy controls (HC) were included. The assessment of periodontal status included periodontal probing depth, bleeding on probing and clinical attachment loss...
March 21, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28319050/extracellular-matrix-proteomics-identifies-molecular-signature-of-symptomatic-carotid-plaques
#4
Sarah R Langley, Karin Willeit, Athanasios Didangelos, Ljubica Perisic Matic, Philipp Skroblin, Javier Barallobre-Barreiro, Mariette Lengquist, Gregor Rungger, Alexander Kapustin, Ludmilla Kedenko, Chris Molenaar, Ruifang Lu, Temo Barwari, Gonca Suna, Xiaoke Yin, Bernhard Iglseder, Bernhard Paulweber, Peter Willeit, Joseph Shalhoub, Gerard Pasterkamp, Alun H Davies, Claudia Monaco, Ulf Hedin, Catherine M Shanahan, Johann Willeit, Stefan Kiechl, Manuel Mayr
BACKGROUND: The identification of patients with high-risk atherosclerotic plaques prior to the manifestation of clinical events remains challenging. Recent findings question histology- and imaging-based definitions of the "vulnerable plaque," necessitating an improved approach for predicting onset of symptoms. METHODS: We performed a proteomics comparison of the vascular extracellular matrix and associated molecules in human carotid endarterectomy specimens from 6 symptomatic versus 6 asymptomatic patients to identify a protein signature for high-risk atherosclerotic plaques...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28315458/cyperus-rotundus-l-extract-suppresses-rankl-induced-osteoclastogenesis-through-nfatc1-c-fos-downregulation-and-prevent-bone-loss-in-ovx-induced-osteoporosis-rat
#5
Chang-Jun Kum, Eun-Young Kim, Jae-Hyun Kim, Bina Lee, Ju-Hee Min, Jun Heo, Jong-Hyun Kim, Mijung Yeom, Youngjoo Sohn, Hyuk-Sang Jung
ETHNOPHARMACOLOGICAL RELEVANCE: Cyperus Rotundus L. (CyR) has been widely used for the treatment of gynecologic disorder. Recent studies have reported that CyR can prevent the formation of cystic follicles and ovarian malfunction. However, the effects of CyR on osteoclastogenesis and postmenopausal osteoporosis remain unknown. AIM OF THE STUDY: This study was aimed to investigate the preventive effects of CyR on RANKL-induced osteoclast formation and ovariectomy (OVX)-induced bone loss...
March 15, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28314761/hypoxia-mediated-regulation-of-the-secretory-properties-of-mitral-valve-interstitial-cells
#6
Kareem Salhiyyah, Padmini Sarathchandra, Najma Latif, Magdi H Yacoub, Adrian H Chester
The sophisticated function of the mitral valve depends to a large extent on the extracellular matrix (ECM) and specific cellular components. These are tightly regulated by a repertoire of mechanical stimuli and biological pathways. One potentially important pathway is hypoxia. The purpose of this investigation is to determine the effect of hypoxia on the regulation of mitral valve interstitial cells (MVIC) with respect to the synthesis and secretion of extracellular matrix proteins. Hypoxia resulted in reduced production of total collagen and sulphated glycosaminoglycans (sGAG) in cultured porcine MVIC...
March 17, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28314476/polydatin-alleviates-alcohol-induced-acute-liver-injury-in-mice-relevance-of-matrix-metalloproteinases-mmps-and-hepatic-antioxidants
#7
Meghana Koneru, Bidya Dhar Sahu, Sagarika Gudem, Madhusudana Kuncha, Halley Gora Ravuri, Jerald Mahesh Kumar, Eswar Kumar Kilari, Ramakrishna Sistla
BACKGROUND: Alcohol, a most commonly consumed beverage, is the foremost cause of liver injury throughout the world. Polydatin, a stilbenoid glucoside, was known to possess antioxidant and anti-inflammatory properties and is being investigated for use in various disorders. PURPOSE: The present study was intended at investigating the hepatoprotective efficacy of polydatin against acute-alcohol induced liver injury model in mice. STUDY DESIGN: C57BL/6 mice were fed with five doses of 50% ethyl alcohol (10ml/kg body weight) to induce acute liver injury...
April 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28306533/ros-mediated-induction-of-apoptosis-by-benzoquinone-embelin-in-human-colon-adenocarcinoma-cells-ht-29
#8
Kodandaram Sumalatha, Mohan Gowda, Sreepriya Meenakshisundaram
Background Embelin is a benzoquinone reported to possess anticancer activity in several in vivo and in vitro models of carcinogenesis, especially hematopoietic and prostate malignancy. A detailed investigation on the influence of embelin on epithelial malignancy model system, especially colon adenocarcinoma, is lacking. The objective of the current study is to investigate the antiproliferative, antiinvasive and proapoptotic potential of embelin on colon adenocarcinoma cell line HT-29. Methods The effect of embelin (35 µg/mL for 24 h) on cell proliferation was assessed by Sulforhodamine B assay and bromodeoxyuridine incorporation test, antiinvasive effect by Boyden chamber assay and scratch assay...
March 17, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28304250/tranexamic-acid-and-supportive-measures-to-treat-wasting-marmoset-syndrome
#9
Takuro Yoshimoto, Kimie Niimi, Eiki Takahashi
Wasting marmoset syndrome (WMS) has high incidence and mortality rates and is one of the most important problems in captive common marmoset (Callithrix jacchus) colonies. Despite several reports on WMS, little information is available regarding its reliable treatment. We previously reported that marmosets with WMS had high serum levels of matrix metalloproteinase 9 (MMP9). MMP9 is thought to be a key enzyme in the pathogenesis of inflammatory bowel disease, the main disease state of WMS, and is activated by plasmin, a fibrinolytic factor...
December 1, 2016: Comparative Medicine
https://www.readbyqxmd.com/read/28303501/isoflurane-postconditioning-inhibits-tpa-induced-matrix-metalloproteinases-activation-after-hypoxic-injury-via-low-density-lipoprotein-receptor-related-protein-and-extracellular-signal-regulated-kinase-pathway
#10
So Yeon Kim, So Yeong Cheon, Eun Jung Kim, Jae Hoon Lee, Eun Hee Kam, Jeong Min Kim, Miran Park, Bon-Nyeo Koo
Tissue plasminogen activator (tPA) is the only recommended pharmacological treatment for acute ischemic stroke. However, tPA can induce intracerebral hemorrhage by blood-brain barrier breakdown through an increase in matrix metalloproteinases (MMPs). Previously, we showed that isoflurane postconditioning reduced intracranial hemorrhage following tPA treatment after cerebral ischemia. Here, we investigated the mechanism by which isoflurane postconditioning reduces tPA-induced MMP-2 and MMP-9 activation following hypoxia/reoxygenation (H/R) in brain endothelial cells...
March 16, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28301572/far-infrared-suppresses-skin-photoaging-in-ultraviolet-b-exposed-fibroblasts-and-hairless-mice
#11
Hui-Wen Chiu, Cheng-Hsien Chen, Yi-Jie Chen, Yung-Ho Hsu
Ultraviolet (UV) induces skin photoaging, which is characterized by thickening, wrinkling, pigmentation, and dryness. Collagen, which is one of the main building blocks of human skin, is regulated by collagen synthesis and collagen breakdown. Autophagy was found to block the epidermal hyperproliferative response to UVB and may play a crucial role in preventing skin photoaging. In the present study, we investigated whether far-infrared (FIR) therapy can inhibit skin photoaging via UVB irradiation in NIH 3T3 mouse embryonic fibroblasts and SKH-1 hairless mice...
2017: PloS One
https://www.readbyqxmd.com/read/28300665/grape-seed-extract-ameliorates-bleomycin-induced-mouse-pulmonary-fibrosis
#12
Qi Liu, Jun-Xia Jiang, Ya-Nan Liu, Yan Guan, Wei Zhao, Yong-Liang Jia, Xin-Wei Dong, Yun Sun, Qiang-Min Xie
Pulmonary fibrosis is common in a variety of inflammatory lung diseases, such as interstitial pneumonia, chronic obstructive pulmonary disease, and silicosis. There is currently no effective clinical drug treatment. It has been reported that grape seed extracts (GSE) has extensive pharmacological effects with minimal toxicity. Although it has been found that GSE can improve the lung collagen deposition and fibrosis pathology induced by bleomycin in rat, its effects on pulmonary function, inflammation, growth factors, matrix metalloproteinases and epithelial-mesenchymal transition remain to be researched...
March 11, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28300464/serum-visfatin-vascular-endothelial-growth-factor-and-matrix-metalloproteinase-9-in-women-with-polycystic-ovary-syndrome
#13
Kalliopi Dambala, Dimitrios Vavilis, Eleni Bili, Dimitrios G Goulis, Basil C Tarlatzis
AIM: To evaluate serum concentrations of visfatin, vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP-9) in women with polycystic ovary syndrome (PCOS) and to investigate their possible role as early endothelial markers in PCOS. METHODS: Forty-two women with PCOS and 42 controls, matched for age and weight, were included in the study. Serum concentrations of follicle-stimulating hormone (FSH), luteinizing hormone (LH), prolactin, total testosterone (tT), Δ4-androstenedione (Δ4A), dehydroepinadrosterone sulphate (DHEA-S), 17-OH-progesterone, sex hormone-binding protein (SHBG), thyroid-stimulating hormone (TSH), free thyroxine (fT4), visfatin, VEGF and MMP-9 were measured in all women; free androgen index (FAI) was calculated as well...
March 16, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28299638/the-impact-of-aging-on-cardiac-extracellular-matrix
#14
REVIEW
Cesar A Meschiari, Osasere Kelvin Ero, Haihui Pan, Toren Finkel, Merry L Lindsey
Age-related changes in cardiac homeostasis can be observed at the cellular, extracellular, and tissue levels. Progressive cardiomyocyte hypertrophy, inflammation, and the gradual development of cardiac fibrosis are hallmarks of cardiac aging. In the absence of a secondary insult such as hypertension, these changes are subtle and result in slight to moderate impaired myocardial function, particularly diastolic function. While collagen deposition and cross-linking increase during aging, extracellular matrix (ECM) degradation capacity also increases due to increased expression of matrix metalloproteinases (MMPs)...
February 2017: Geroscience
https://www.readbyqxmd.com/read/28297833/-effect-of-allogenic-mesenchymal-stem-cells-transplantation-on-the-expression-of-interleukin-22-and-matrix-metalloproteinase-3-in-rats-with-collagen-induced-arthritis
#15
G Y Liu, S Bian, F Li, X F Li, K Fan, H Z An, X X Jia
Objective: To study the effect of allogeneic bone marrow mesenchymal stem cells transplantation on the expression of interleukin -22 (IL-22), matrix metalloproteinase -3 (MMP-3) in serum and synovial of rats with collagen induced arthritis. Methods: Type Ⅱ collagen were injected twice to establish the collagen induced arthritis (CIA) rat model. Forty-eight rats were randomly divided into 3 groups: control group, CIA control group, CIA experiment group. Rat bone marrow mesenchymal stem cells were cultured by bone marrow method combined with adherent culture method...
March 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28296545/the-effects-of-nicotine-administration-on-the-pathophysiology-of-rat-aortic-wall
#16
H Kugo, N Zaima, H Tanaka, T Urano, N Unno, T Moriyama
Abdominal aortic aneurysm (AAA) is the progressive dilation of the abdominal aorta. Nicotine is reported to be associated with the development and rupture of AAA, but the pathological effects of nicotine on normal rat aorta have not been determined. We investigated pathological changes in the aortic wall of rats caused by the administration of nicotine. Nicotine administration weakened the vascular wall, increased gelatinolytic activity and promoted the destruction of elastin and collagen in the rat abdominal aorta...
2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28296543/immunocharacterization-of-matrix-metalloproteinase-2-and-matrix-metalloproteinase-9-in-canine-transmissible-venereal-tumors
#17
A Akkoc, D Nak, A Demirer, G Şimşek
Matrix metalloproteases (MMPs) are endogenous proteases that are responsible for degradation of extracellular matrix (ECM) proteins and cell surface antigens. The breakdown of ECM participates in the local invasion and distant metastases of malignant tumors. Canine transmissible venereal tumor (CTVT) is a naturally occurring contagious round cell neoplasm of dogs that affects mainly the external genitalia of both sexes. CTVT generally is a locally invasive tumor, but distant metastases also are common in puppies and immunocompromised dogs...
2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28295306/osteoactivin-regulates-head-and-neck-squamous-cell-carcinoma-invasion-by-modulating-matrix-metalloproteases
#18
Oneida A Arosarena, Eric W Barr, Ryan Thorpe, Hilary Yankey, Joseph T Tarr, Fayez F Safadi
Nearly 60% of patients with head and neck squamous cell carcinoma (HNSCC) die of metastases or locoregional recurrence. Metastasis is mediated by cancer cell migration and invasion, which are in part dependent on extracellular matrix degradation by matrix metalloproteinases. Osteoactivin (OA) overexpression plays a role in metastases in several malignancies, and has been shown to upregulate matrix metalloproteinase (MMP) expression and activity. OBJECTIVES: To determine how OA modulates MMP expression and activity in HNSCC, and to investigate OA effects on cell invasion...
March 10, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28294065/tetramethylpyrazine-facilitates-functional-recovery-after-spinal-cord-injury-by-inhibiting-mmp2-mmp9-and-vascular-endothelial-cell-apoptosis
#19
Jian-Zhong Hu, Xiao-Kai Wang, Yong Cao, Dong-Zhe Li, Tian-Ding Wu, Tao Zhang, Da-Qi Xu, Hong-Bin Lu
BACKGROUND: Spinal cord injury (SCI) is a major public health issue that leads to neurological dysfunctions and morbidities in patients. Tetramethylpyrazine (TMP) plays a neuroprotective role in SCI; however, the underlying mechanism has not been fully elucidated. Objective In the present study, we aimed to investigate the mechanisms and therapeutic effects of TMP on SCI. METHODS: A contusion SCI model was established that used a modified Allen's method. In the TMP group, TMP (200 mg/kg) was injected daily for 5 days post-injury, while in the Negative Control (NC) group, an equal volume of normal saline was injected...
March 13, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28293015/profile-of-expression-of-genes-encoding-matrix-metallopeptidase-9-mmp9-matrix-metallopeptidase-28-mmp28-and-timp-metallopeptidase-inhibitor-1-timp1-in-colorectal-cancer-assessment-of-the-role-in-diagnosis-and-prognostication
#20
Zbigniew Lorenc, Dariusz Waniczek, Katarzyna Lorenc-Podgórska, Wiktor Krawczyk, Maciej Domagała, Mateusz Majewski, Urszula Mazurek
BACKGROUND Studies on the pathomechanism of colorectal cancer (CRC) expansion indicate a significant role of metalloproteinases and their inhibitors in the extracellular matrix. The results of the analysis of a profile of transcriptional activity of genes encoding metalloproteinases were the basis of the hypothesis indicating changes in the expression of genes encoding MMP9, MMP28, and TIMP1 as an additional diagnostic and prognostic marker of CRC. MATERIAL AND METHODS The material consisted of samples obtained from resected tumors and healthy tissue samples from 15 CRC patients (aged 46-72 years) at clinical stages (CSs) I and II-IV...
March 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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