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https://www.readbyqxmd.com/read/28299490/molecular-effects-of-fractional-ablative-erbium-yag-laser-treatment-with-multiple-stacked-pulses-on-standardized-human-three-dimensional-organotypic-skin-models
#1
Laurenz Schmitt, P M Amann, Y Marquardt, R Heise, K Czaja, P A Gerber, T Steiner, F Hölzle, Jens Malte Baron
The molecular changes in gene expression following ablative laser treatment of skin lesions, such as atrophic scars and UV-damaged skin, are not completely understood. A standardized in vitro model of human skin, to study the effects of laser treatment on human skin, has been recently developed. Therefore, the aim of the investigation was to examine morphological and molecular changes caused by fractional ablative erbium:YAG laser treatment on an in vitro full-thickness 3D standardized organotypic model of human skin...
March 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28270187/multiplex-serum-protein-analysis-reveals-potential-mechanisms-and-markers-of-response-to-hyperimmune-caprine-serum-in-systemic-sclerosis
#2
Niamh Quillinan, Kristina E N Clark, Bryan Youl, Jeffrey Vernes, Deirdre McIntosh, Syed Haq, Christopher P Denton
BACKGROUND: Hyperimmune caprine serum (HICS) is a novel biological therapy with potential benefit for skin in established diffuse cutaneous systemic sclerosis. Here we report multiplex protein analysis of blood samples from a placebo-controlled phase II clinical trial and explore mechanisms of action and markers of response. METHODS: Patients were treated with HICS (n = 10) or placebo (n = 10) over 26 weeks, with follow-up open-label treatment to 52 weeks in 14 patients...
March 7, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28209269/association-of-matrix-metalloproteinase-levels-with-collagen-degradation-in-the-context-of-abdominal-aortic-aneurysm
#3
V Klaus, F Tanios-Schmies, C Reeps, M Trenner, E Matevossian, H-H Eckstein, J Pelisek
OBJECTIVE/BACKGROUND: Matrix metalloproteinases (MMPs) have already been identified as key players in the pathogenesis of abdominal aortic aneurysm (AAA). However, the current data remain inconclusive. In this study, the expression of MMPs at mRNA and protein levels were investigated in relation to the degradation of collagen I and collagen III. METHODS: Tissue samples were obtained from 40 patients with AAA undergoing open aortic repair, and from five healthy controls during kidney transplantation...
February 10, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28192449/timp1-and-mmp9-are-predictors-of-mortality-in-septic-patients-in-the-emergency-department-and-intensive-care-unit-unlike-mmp9-timp1-ratio-multivariate-model
#4
Maria Eugenia Niño, Sergio Eduardo Serrano, Daniela Camila Niño, Diana Margarita McCosham, Maria Eugenia Cardenas, Vivian Poleth Villareal, Marcos Lopez, Antonio Pazin-Filho, Fabian Alberto Jaimes, Fernando Cunha, Richard Schulz, Diego Torres-Dueñas
INTRODUCTION: Matrix metalloproteinases and tissue inhibitors of metalloproteinases could be promising biomarkers for establishing prognosis during the development of sepsis. It is necessary to clarify the relationship between matrix metalloproteinases and their tissue inhibitors. We conducted a cohort study with 563 septic patients, in order to elucidate the biological role and significance of these inflammatory biomarkers and their relationship to the severity and mortality of patients with sepsis...
2017: PloS One
https://www.readbyqxmd.com/read/28183280/whole-genome-scan-reveals-the-genetic-signature-of-african-ankole-cattle-breed-and-potential-for-higher-quality-beef
#5
Mengistie Taye, Jaemin Kim, Sook Hee Yoon, Wonseok Lee, Olivier Hanotte, Tadelle Dessie, Stephen Kemp, Okeyo Ally Mwai, Kelsey Caetano-Anolles, Seoae Cho, Sung Jong Oh, Hak-Kyo Lee, Heebal Kim
BACKGROUND: Africa is home to numerous cattle breeds whose diversity has been shaped by subtle combinations of human and natural selection. African Sanga cattle are an intermediate type of cattle resulting from interbreeding between Bos taurus and Bos indicus subspecies. Recently, research has asserted the potential of Sanga breeds for commercial beef production with better meat quality as compared to Bos indicus breeds. Here, we identified meat quality related gene regions that are positively selected in Ankole (Sanga) cattle breeds as compared to indicus (Boran, Ogaden, and Kenana) breeds using cross-population (XP-EHH and XP-CLR) statistical methods...
February 9, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28158198/cerebral-microbleeds-in-a-neonatal-rat-model
#6
Brianna Carusillo Theriault, Seung Kyoon Woo, Jason K Karimy, Kaspar Keledjian, Jesse A Stokum, Amrita Sarkar, Turhan Coksaygan, Svetlana Ivanova, Volodymyr Gerzanich, J Marc Simard
BACKGROUND: In adult humans, cerebral microbleeds play important roles in neurodegenerative diseases but in neonates, the consequences of cerebral microbleeds are unknown. In rats, a single pro-angiogenic stimulus in utero predisposes to cerebral microbleeds after birth at term, a time when late oligodendrocyte progenitors (pre-oligodendrocytes) dominate in the rat brain. We hypothesized that two independent pro-angiogenic stimuli in utero would be associated with a high likelihood of perinatal microbleeds that would be severely damaging to white matter...
2017: PloS One
https://www.readbyqxmd.com/read/28139355/intra-articular-delivery-of-antago-mir-483-5p-inhibits-osteoarthritis-by-modulating-matrilin-3-and-tissue-inhibitor-of-metalloproteinase-2
#7
Hua Wang, Haiyan Zhang, Qiuyi Sun, Yun Wang, Jun Yang, Jincheng Yang, Tao Zhang, Shenqiu Luo, Liping Wang, Yu Jiang, Chun Zeng, Daozhang Cai, Xiaochun Bai
MicroRNAs (miRNAs) are emerging as important regulators in osteoarthritis (OA) pathogenesis. In our study, a real-time PCR assay revealed that miR-483-5p was upregulated in articular cartilage from OA patients and experimental OA mice induced by destabilization of the medial meniscus compared to their controls. Overexpression of miR-483-5p by intra-articular injection of lentivirus LV3-miR-483-5p significantly enhanced the severity of experimental OA. Consequently, we synthesized antago-miR-483-5p to silence the endogenous miR-483-5p and delivered it intra-articularly, which revealed that antago-miR-483-5p delayed the progression of experimental OA...
March 1, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28131910/polymorphisms-in-genes-involved-in-enamel-development-are-associated-with-dental-fluorosis
#8
Erika Calvano Küchler, Patricia Nivoloni Tannure, Daniela Silva Barroso de Oliveira, Senda Charone, Paulo Nelson-Filho, Raquel Assed Bezerra da Silva, Marcelo de Castro Costa, Leonardo Santos Antunes, Mônica Diuana Calasans Maia, Lívia Azeredo Alves Antunes
OBJECTIVE: To evaluate the association between polymorphisms in DLX1, DLX2, MMP13, TIMP1 and TIMP2 genes with dental fluorosis (DF) phenotype. DESIGN: Four hundred and eighty one subjects (108 with DF and 373 DF free) from 6 to 18 years of age were recruited. This population lived in Rio de Janeiro, a city with fluoridation of public water supplies. DF was assessed using the Deańs index modified. Only erupted permanent teeth were assessed. Genetic polymorphisms in DLX1, DLX2, MMP13, TIMP1 and TIMP2 were analyzed by real-time PCR from genomic DNA...
January 18, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28103583/angiogenesis-related-genes-may-be-a-more-important-factor-than-matrix-metalloproteinases-in-bronchopulmonary-dysplasia-development
#9
Min Yang, Bo-Lin Chen, Jian-Bao Huang, Yan-Ni Meng, Xiao-Jun Duan, Lu Chen, Lin-Rui Li, Yan-Ping Chen
We characterized the expression profile of angiogenesis-related genes (ARG) and matrix metalloproteinase (MMP) genes in preterm infants, with and without bronchopulmonary dysplasia (BPD). We reanalyzed a gene expression dataset for preterm infants from the Gene Expression Omnibus database using the Gene-Cloud of Biotechnology Information platform. A total of 1,652 genes were differentially (1.2-fold change) expressed: 811 were highly expressed in infants with BPD, and 841 were highly expressed in those without BPD...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28087697/development-of-high-affinity-and-high-specificity-inhibitors-of-matrix-metalloproteinase-14-through-computational-design-and-directed-evolution
#10
Valeria Arkadash, Gal Yosef, Jason Shirian, Itay Cohen, Yuval Horev, Moran Grossman, Irit Sagi, Evette S Radisky, Julia M Shifman, Niv Papo
Degradation of the extracellular matrices in the human body is controlled by matrix metalloproteinases (MMPs), a family of more than 20 homologous enzymes. Imbalance in MMP activity can result in many diseases, such as arthritis, cardiovascular diseases, neurological disorders, fibrosis, and cancers. Thus, MMPs present attractive targets for drug design and have been a focus for inhibitor design for as long as 3 decades. Yet, to date, all MMP inhibitors have failed in clinical trials because of their broad activity against numerous MMP family members and the serious side effects of the proposed treatment...
February 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28081267/single-nucleotide-variants-of-candidate-genes-in-aggrecan-metabolic-pathway-are-associated-with-lumbar-disc-degeneration-and-modic-changes
#11
Romain Shanil Perera, Poruwalage Harsha Dissanayake, Upul Senarath, Lalith Sirimevan Wijayaratne, Aranjan Lional Karunanayake, Vajira Harshadeva Weerabaddana Dissanayake
INTRODUCTION: Lumbar disc degeneration (LDD) is genetically determined and severity of LDD is associated with Modic changes. Aggrecan is a major proteoglycan in the intervertebral disc and end plate. Progressive reduction of aggrecan is a main feature of LDD and Modic changes. OBJECTIVES: The study investigated the associations of single nucleotide variants (SNVs) of candidate genes in the aggrecan metabolic pathway with the severity of LDD and Modic changes. In-silico functional analysis of significant SNVs was also assessed...
2017: PloS One
https://www.readbyqxmd.com/read/28045061/feature-selection-and-classification-of-urinary-mrna-microarray-data-by-iterative-random-forest-to-diagnose-renal-fibrosis-a-two-stage-study
#12
Le-Ting Zhou, Yu-Han Cao, Lin-Li Lv, Kun-Ling Ma, Ping-Sheng Chen, Hai-Feng Ni, Xiang-Dong Lei, Bi-Cheng Liu
Renal fibrosis is a common pathological pathway of progressive chronic kidney disease (CKD). However, kidney function parameters are suboptimal for detecting early fibrosis, and therefore, novel biomarkers are urgently needed. We designed a 2-stage study and constructed a targeted microarray to detect urinary mRNAs of CKD patients with renal biopsy and healthy participants. We analysed the microarray data by an iterative random forest method to select candidate biomarkers and produce a more accurate classifier of renal fibrosis...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28035415/mirna-301a-induces-apoptosis-of-chronic-myelogenous-leukemia-cells-by-directly-targeting-timp2-erk1-2-and-akt-pathways
#13
Xianbao Huang, Ling Qi, Wei Lu, Gangping Yang, Yan Chen, Rongyan Zhang, Jia Rao, Dexiang Ji, Ruibin Huang, Guoan Chen
We investigated the biological functions and mechanism of miRNA‑301a on apoptosis in chronic myelogenous leukemia (CML). The expression of miRNA‑301a in patient with CML cells was higher than the expression of normal patients. Overall survival (OS) of chronic granulocytic leukemia cell patient with low miRNA‑301 expression was superior to that of CML patient with high miRNA‑301 expression. Moreover, the upregulation of miRNA‑301a increased cell proliferation, inhibited apoptosis and caspase-3 and -9 activity of K562 cells...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/28012239/secretion-of-pro-inflammatory-cytokines-and-chemokines-and-loss-of-regulatory-signals-by-fibroblast-like-synoviocytes-in-juvenile-idiopathic-arthritis
#14
AnneMarie C Brescia, Megan M Simonds, Kathleen E Sullivan, Carlos D Rose
OBJECTIVE: The goal was to investigate the specific contribution of fibroblast-like synoviocytes (FLS) to the inflammatory milieu of the synovium in juvenile idiopathic arthritis (JIA) through detection of secreted proteins. METHODS: Expression of 89 cytokines and chemokines was determined on unprocessed synovial fluid from controls and JIA patients using antibody arrays. Supernatants from pure cell cultures of FLS grown from synovial fluids or tissues from JIA and controls were also examined for protein expression...
December 23, 2016: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28011057/the-ischemic-nephrotoxic-acute-kidney-injury-and-the-use-of-renal-biomarkers-in-clinical-practice
#15
REVIEW
Michele Andreucci, Teresa Faga, Antonio Pisani, Maria Perticone, Ashour Michael
The term Acute Renal Failure (ARF) has been replaced by the term Acute Kidney Injury (AKI). AKI indicates an abrupt (within 24-48h) decrease in Glomerular Filtraton Rate, due to renal damage, that causes fluid and metabolic waste retention and alteration of electrolyte and acid-base balance. The renal biomarkers of AKI are substances or processes that are indicators of normal or impaired function of the kidney. The most used renal biomarker is still serum creatinine that is inadequate for several reasons, one of which is its inability to differentiate between hemodynamic changes of renal function ("prerenal azotemia") from intrinsic renal failure or obstructive nephropathy...
December 21, 2016: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/27997075/vascular-canals-in-permanent-hyaline-cartilage-development-corrosion-of-nonmineralized-cartilage-matrix-and-removal-of-matrix-degradation-products
#16
Simone Gabner, Gabriele Häusler, Peter Böck
Core areas in voluminous pieces of permanent cartilage are metabolically supplied via vascular canals (VCs). We studied cartilage corrosion and removal of matrix degradation products during the development of VCs in nose and rib cartilage of piglets. Conventional staining methods were used for glycosaminoglycans, immunohistochemistry was performed to demonstrate collagens types I and II, laminin, Ki-67, von Willebrand factor, VEGF, macrophage marker MAC387, S-100 protein, MMPs -2,-9,-13,-14, and their inhibitors TIMP1 and TIMP2...
December 20, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27923447/amelioration-of-non-alcoholic-fatty-liver-disease-with-npc1l1-targeted-igy-or-n-3-polyunsaturated-fatty-acids-in-mice
#17
Jin-Sik Bae, Jong-Min Park, Junghoon Lee, Byung-Chul Oh, Sang-Ho Jang, Yun Bin Lee, Young-Min Han, Chan-Young Ock, Ji-Young Cha, Ki-Baik Hahm
Patients with non-alcoholic fatty liver disease (NAFLD) have an increased risk for progression to hepatocellular carcinoma in addition to comorbidities such as cardiovascular and serious metabolic diseases; however, the current therapeutic options are limited. Based on our previous report that omega-3 polyunsaturated fatty acids (n-3 PUFAs) can significantly ameliorate high fat diet (HFD)-induced NAFLD, we explored the therapeutic efficacy of n-3 PUFAs and N-IgY, which is a chicken egg yolk-derived IgY specific for the Niemann-Pick C1-Like 1 (NPC1L1) cholesterol transporter, on NAFLD in mice...
January 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/27922684/excess-mechanical-stress-and-hydrogen-peroxide-remodel-extracellular-matrix-of-cultured-human-uterosacral-ligament-fibroblasts-by-disturbing-the-balance-of-mmps-timps-via-the-regulation-of-tgf%C3%A2-%C3%AE-1-signaling-pathway
#18
Qifan Zhang, Cheng Liu, Shasha Hong, Jie Min, Qing Yang, Ming Hu, Yang Zhao, Li Hong
The regulation of the extracellular matrix (ECM) by mechanical stress is of interest as the ECM is essential in the development of pelvic organ prolapse. In the present study, the effect of overexposure to mechanical stress on the ECM, and the probable underlying mechanisms in cultured human uterosacral ligament fibroblasts (hUSLFs), was explored. Mechanical stress has an effect on oxidation‑antioxidation products in parametrial ligament fibroblasts. Thus, hUSLFs were incubated with different concentrations of hydrogen peroxide to elucidate any potential interactions...
January 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27894112/association-of-mbl2-gene-polymorphism-with-dental-caries-in-saudi-children
#19
Yousef M Alyousef, J Francis Borgio, Sayed AbdulAzeez, Naif Al-Masoud, Ali A Al-Ali, Emad Al-Shwaimi, Amein K Al-Ali
The high prevalence of dental caries in children worldwide is a major oral health problem which requires early intervention. Dental caries is mainly caused by the action of acids produced by bacteria in addition to many other factors. Recent genetic studies have reported that a number of genes are associated with the susceptibility to dental caries. The majority of these genes are associated with inflammation, increased susceptibility to infection, and dentine matrix formation. Using the TaqMan assay and direct DNA sequencing, the prevalence of 6 single-nucleotide polymorphisms (SNPs) in MMP9, MBL2, MMP2, and TIMP2 genes was determined in 102 children with caries and in 100 age-matched caries-free controls...
2017: Caries Research
https://www.readbyqxmd.com/read/27882817/h2s-improves-renal-fibrosis-in-stz-induced-diabetic-rats-by-ameliorating-tgf-%C3%AE-1-expression
#20
Yan Li, Lin Li, Ou Zeng, Jun Mao Liu, Jun Yang
Nephropathy develops in many patients with type 1 diabetes mellitus (T1DM). However, the specific mechanisms and therapies remain unclear. For this purpose we investigated the effects of hydrogen sulfide (H2S) on renal fibrosis in streptozotocin (STZ) induced diabetic rats and its underlying mechanisms. Experimental rats were randomly divided into four groups: Control group (normal rats), DM group (diabetes rats), DM + NaHS group [diabetes rats treated with sodium hydrosulfide (NaHS)], and NaHS group (normal rats treated with NaHS)...
November 24, 2016: Renal Failure
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