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https://www.readbyqxmd.com/read/29454302/aerobic-exercise-inhibits-obesity-induced-respiratory-phenotype
#1
Jefferson Comin Jonco Aquino-Junior, BreAnne MacKenzie, Ana Roberta Almeida-Oliveira, Ana Carolina Martins, Manoel Carneiro Oliveira-Junior, Auriléa Aparecida Britto, Fernanda Magalhaes Arantes-Costa, Nilsa Regina Damaceno-Rodrigues, Elia Garcia Caldini, Ana Paula Ligeiro de Oliveira, Dioze Guadagnini, Luiz Osorio Leiria, Djalma Rabelo Ricardo, Mario Jose Abdalla Saad, Rodolfo Paula Vieira
PURPOSE: Obesity results in decreased lung function and increased inflammation. Moderate aerobic exercise (AE) reduced lung inflammation and remodeling in a variety of respiratory disease models. Therefore, this study investigated whether AE can attenuate a diet-induced obesity respiratory phenotype; including airway hyper-responsiveness (AHR), remodeling and inflammation. METHODS: Sixty C57Bl/6 male mice were distributed into four groups: control lean (CL), exercise lean (EL), obese (O) and obese exercise (OE) groups (2 sets of 7 and 8 mice per group; n = 15)...
February 14, 2018: Cytokine
https://www.readbyqxmd.com/read/29453850/the-role-of-the-immune-system-in-kidney-disease
#2
REVIEW
Josefine Tecklenborg, David Clayton, Stefan Siebert, Shana M Coley
The immune system and the kidneys are closely linked. In health the kidneys contribute to immune homeostasis, while components of the immune system mediate many acute forms of renal disease and play a central role in progression of chronic kidney disease. A dysregulated immune system can have either direct or indirect renal effects. Direct immune-mediated kidney diseases are usually a consequence of autoantibodies directed against a constituent renal antigen, such as collagen IV in anti-glomerular basement membrane disease...
February 17, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29453823/paeoniflorin-ameliorates-collagen-induced-arthritis-via-suppressing-nf-%C3%AE%C2%BAb-signaling-pathway-in-osteoclast-differentiation
#3
Haiyan Xu, Li Cai, Lili Zhang, Guojue Wang, Rongli Xie, Yongshuai Jiang, Yuanyang Yuan, Hong Nie
Paeoniflorin (PF), extracted from the root of Paeonia lactiflora Pall, exhibits anti-inflammation properties in several autoimmune diseases. Osteoclast, the only somatic cell with bone resorbing capacity, was the direct cause of bone destruction in rheumatoid arthritis (RA) and its mouse model, such as collagen induced arthritis(CIA). The objective of this study is to estimate the effect of PF on CIA mice, and explore the mechanism of PF on bone destruction. We demonstrated that PF treatment significantly ameliorated CIA via inflammatory response inhibition and bone destruction suppression...
February 17, 2018: Immunology
https://www.readbyqxmd.com/read/29453386/anti-fibrotic-effects-of-cxcr4-targeting-i-body-ad-114-in-preclinical-models-of-pulmonary-fibrosis
#4
K Griffiths, D M Habiel, J Jaffar, U Binder, W G Darby, C G Hosking, A Skerra, G P Westall, C M Hogaboam, M Foley
Idiopathic pulmonary fibrosis (IPF) is a chronic fibrotic lung disease that is prevalent in individuals >50 years of age, with a median survival of 3-5 years and limited therapeutic options. The disease is characterized by collagen deposition and remodeling of the lung parenchyma in a process that is thought to be driven by collagen-expressing immune and structural cells. The G-protein coupled C-X-C chemokine receptor 4, CXCR4, is a candidate therapeutic target for IPF owing to its role in the recruitment of CXCR4 + fibrocytes from the bone marrow to fibrotic lung tissue and its increased expression levels by structural cells in fibrotic lung tissue...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29452215/lymphocytic-colitis-pathologic-predictors-of-response-to-therapy
#5
Namrata Setia, Lindsay Alpert, Kimberley Wj van der Sloot, Dora Colussi, Kathleen O Stewart, Joseph Misdraji, Hamed Khalili, Gregory Y Lauwers
While the presence of intraepithelial lymphocytosis with surface epithelial damage is a unifying feature of lymphocytic colitis, there are non-classical features that create morphologic heterogeneity between cases. Limited data are available on the significance of these secondary histologic features. Cases of lymphocytic colitis diagnosed between 2002 and 2013 were identified using the Research Patient Data Registry of a tertiary referral center. Diagnostic biopsy slides were reviewed and evaluated for histologic features of lymphocytic colitis...
February 13, 2018: Human Pathology
https://www.readbyqxmd.com/read/29451817/the-impact-of-pulse-pressure-on-cerebrovascular-events-leading-to-age-related-cognitive-decline
#6
Nathalie Thorin-Trescases, Olivia de Montgolfier, Anthony Pinçon, Adeline Raignault, Laurie Caland, Pauline Labbé, Eric Thorin
Aging is a modern concept: human life expectancy has more than doubled in less than 150 years in Western countries. Longer lifespan, however, reveals age-related diseases, including cerebrovascular diseases. The vascular system is a prime target of aging: the "wear and tear" of large elastic arteries exposed to a life-long pulsatile pressure causes arterial stiffening by fragmentation of elastin fibers and replacement by stiffer collagen. This arterial stiffening increases in return the amplitude of the pulse pressure (PP), its wave penetrating deeper into the microcirculation of low resistance, high flow organs such as the brain...
February 16, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29451701/phase-1b-study-of-pasireotide-everolimus-and-selective-internal-radioembolization-therapy-for-unresectable-neuroendocrine-tumors-with-hepatic-metastases
#7
Hyun S Kim, Walid L Shaib, Chao Zhang, Ganji Purnachandra Nagaraju, Christina Wu, Olatunji B Alese, Zhengjia Chen, Edith Brutcher, Meredith Renfroe, Bassel F El-Rayes
BACKGROUND: Neuroendocrine tumors (NETs) metastasize to the liver. Everolimus and selective internal radioembolization (SIRT) are approved treatments. Pasireotide is a somatostatin analogue with an affinity for somatostatin receptors 1, 2, 3, and 5. Everolimus and pasireotide may potentiate SIRT radiosensitization and inhibit rebound angiogenesis. This study evaluated the safety of pasireotide, everolimus, and SIRT. METHODS: This 3 + 3 phase 1 trial evaluated 3 dose levels of everolimus (2...
February 16, 2018: Cancer
https://www.readbyqxmd.com/read/29450144/anti-inflammatory-tissue-remodeling-immunomodulatory-and-anticancer-activities-of-oregano-origanum-vulgare-essential-oil-in-a-human-skin-disease-model
#8
Xuesheng Han, Tory L Parker
The use of oregano ( Origanum vulgare ) essential oil (OEO) has become popular in skin care products. However, scientific research regarding its effects on human skin cells is scarce. In this study, we investigated the biological activity of a commercially available OEO, which is high in carvacrol content, in a human skin cell disease model. OEO induced marked antiproliferative effects and significantly inhibited several inflammatory biomarkers, including monocyte chemoattractant protein 1 (MCP-1), vascular cell adhesion molecule 1 (VCAM-1), intracellular cell adhesion molecule 1 (ICAM-1), interferon gamma-induced protein 10 (IP-10), interferon-inducible T-cell alpha chemoattractant (I-TAC), and monokine induced by gamma interferon (MIG)...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29449966/raman-spectroscopic-imaging-for-quantification-of-depth-dependent-and-local-heterogeneities-in-native-and-engineered-cartilage
#9
M B Albro, M S Bergholt, J P St-Pierre, A Vinals Guitart, H M Zlotnick, E G Evita, M M Stevens
Articular cartilage possesses a remarkable, mechanically-robust extracellular matrix (ECM) that is organized and distributed throughout the tissue to resist physiologic strains and provide low friction during articulation. The ability to characterize the make-up and distribution of the cartilage ECM is critical to both understand the process by which articular cartilage undergoes disease-related degeneration and to develop novel tissue repair strategies to restore tissue functionality. However, the ability to quantitatively measure the spatial distribution of cartilage ECM constituents throughout the tissue has remained a major challenge...
2018: NPJ Regenerative Medicine
https://www.readbyqxmd.com/read/29449811/hdac6-inhibition-promotes-transcription-factor-eb-activation-and-is-protective-in-experimental-kidney-disease
#10
Angela S Brijmohan, Sri N Batchu, Syamantak Majumder, Tamadher A Alghamdi, Karina Thieme, Sarah McGaugh, Youan Liu, Suzanne L Advani, Bridgit B Bowskill, M Golam Kabir, Laurette Geldenhuys, Ferhan S Siddiqi, Andrew Advani
To contend with the deleterious effects of accumulating misfolded protein aggregates or damaged organelles cells rely on a system of quality control processes, among them the autophagy-lysosome pathway. This pathway is itself controlled by a master regulator transcription factor termed transcription factor EB (TFEB). When TFEB localizes to the cell nucleus it promotes the expression of a number of genes involved in protein clearance. Here, we set out to determine (1) whether TFEB expression is altered in chronic kidney disease (CKD); (2) whether inhibition of the cytosolic deacetylase histone deacetylase 6 (HDAC6) affects TFEB acetylation and nuclear localization; and (3) whether HDAC6 inhibition, in turn, alters the natural history of experimental CKD...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29449364/diabetic-cardiomyopathy-an-update-of-mechanisms-contributing-to-this-clinical-entity
#11
REVIEW
Guanghong Jia, Michael A Hill, James R Sowers
Heart failure and related morbidity and mortality are increasing at an alarming rate, in large part, because of increases in aging, obesity, and diabetes mellitus. The clinical outcomes associated with heart failure are considerably worse for patients with diabetes mellitus than for those without diabetes mellitus. In people with diabetes mellitus, the presence of myocardial dysfunction in the absence of overt clinical coronary artery disease, valvular disease, and other conventional cardiovascular risk factors, such as hypertension and dyslipidemia, has led to the descriptive terminology, diabetic cardiomyopathy...
February 16, 2018: Circulation Research
https://www.readbyqxmd.com/read/29448029/microrna-874-inhibits-tnf-%C3%AE-induced-remodeling-in-human-fetal-airway-smooth-muscle-cells-by-targeting-stat3
#12
Meihua Sun, Yuanyuan Huang, Feng Li, Haibo Li, Bo Zhang, Lianhua Jin
Pro-inflammatory cytokines-induced airway remodeling was a significant feature of asthma disease. The aim of the present study was to explore the functional significance of miR-874 in tumor necrosis factor (TNF)-α-treated human fetal airway smooth muscle (fASM) cells. Here, we found that TNF-α treatment significantly down-regulated the expression of miR-874 in fASM cells. MiR-874 overexpression markedly inhibited cell viability and migration, suppressed the expression of PCNA and Ki67, reduced the expression of collagen I and collagen III, decreased the expression and activity of matrix metalloproteinase (MMP)-9 and MMP-2, and induced an obvious elevation of tissue inhibitors of metalloproteinases (TIMPs)...
February 12, 2018: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29447961/a-physiologically-relevant-3d-collagen-based-scaffold-neuroblastoma-cell-system-exhibits-chemosensitivity-similar-to-orthotopic-xenograft-models
#13
C Curtin, J C Nolan, R Conlon, L Deneweth, C Gallagher, Y J Tan, B L Cavanagh, A Z Asraf, H Harvey, S Miller-Delaney, J Shohet, I Bray, F J O'Brien, R L Stallings, O Piskareva
3D scaffold-based in vitro cell culturing is a recent technological advancement in cancer research bridging the gap between conventional 2D culture and in vivo tumours. The main challenge in treating neuroblastoma, a paediatric cancer of the sympathetic nervous system, is to combat tumour metastasis and resistance to multiple chemotherapeutic drugs. The aim of this study was to establish a physiologically relevant 3D neuroblastoma tissue-engineered system and explore its therapeutic relevance. Two neuroblastoma cell lines, chemotherapeutic sensitive Kelly and chemotherapeutic resistant KellyCis83 were cultured in a 3D in vitro model on two collagen-based scaffolds containing either glycosaminoglycan (Coll-GAG) or nanohydroxyapatite (Coll-nHA) and compared to 2D cell culture and an orthotopic murine model...
February 12, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29447655/epidermolysis-bullosa-acquisita
#14
Gabriela Cobos, Euphemia Mu, Jeffrey Cohen, Jenna Beasley, Nooshin Brinster, Alisa Femia
Epidermolysis bullosa acquisita (EBA) is a rare, acquired subepidermal blistering disease. EBA is characterized by autoantibodies to collagen VII,which serves to link the epidermis to the dermis. The two most common presentations of EBA are classical noninflammatory EBA and bullous pemphigoid-like EBA. Diagnosis of EBA can be challenging as it sharesclinical and histopathologic features with other blistering diseases. Treatment is often recalcitrant and will often necessitate multiple therapies. We presenta case of a thirty-six-year-old Chinese man with EBA and review the literature...
December 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29447635/sublamina-densa-type-linear-iga-bullous-dermatosis-with-iga-autoantibodies-specific-for-type-vii-collagen-a-case-report-and-clinicopathological-review-of-32-cases
#15
Natsuko Utsunomiya, Takenao Chino, Noritaka Oyama, Akira Utsunomiya, Yuka Yamaguchi, Wataru Takashima, Atsushi Tokuriki, Minoru Hasegawa
Linear IgA bullous dermatosis (LABD) is a rare autoimmune bullous disorder characterized by linear deposits of IgA at the basement membrane zone(BMZ) and/or by circulating IgA anti-BMZ antibodies. Comparing with other immuno-bullous diseases, LABD represents a heterogeneous disease entitywith diversity of pathogenic IgA autoantibodies to different hemidesmosomal antigens and an association with malignancies and occasional drug use. We herein present an 82-year-old Japanese man with LABD, whose indirect immunofluorescence using 1M NaCl-split skin showed positive staining for IgA at the dermal side alone...
November 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29446213/osteopontin-is-essential-for-il-1%C3%AE-production-and-apoptosis-in-peri-implantitis
#16
Chengye Che, Jie Liu, Jianjun Yang, Lei Ma, Na Bai, Qian Zhang
BACKGROUND AND PURPOSE: Peri-implantitis is caused by a cascade of host and microbial factors leading to an oral inflammatory disease. The inflammation proliferates into supporting tissues surrounding implants and may finally lead to a complete loss of osseointegration. Being a phosphorylated glycoprotein secreted by immunocompetent cells, osteopontin (OPN) is involved in the differentiation of odontoblast-like cells during pulpal healing following tooth transplantation and the secretion of type I collagen in reparative dentin...
February 15, 2018: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29443878/skeletal-muscle-pathophysiology-the-emerging-role-of-spermine-oxidase-and-spermidine
#17
REVIEW
Manuela Cervelli, Alessia Leonetti, Guglielmo Duranti, Stefania Sabatini, Roberta Ceci, Paolo Mariottini
Skeletal muscle comprises approximately 40% of the total body mass. Preserving muscle health and function is essential for the entire body in order to counteract chronic diseases such as type II diabetes, cardiovascular diseases, and cancer. Prolonged physical inactivity, particularly among the elderly, causes muscle atrophy, a pathological state with adverse outcomes such as poor quality of life, physical disability, and high mortality. In murine skeletal muscle C2C12 cells, increased expression of the spermine oxidase (SMOX) enzyme has been found during cell differentiation...
February 14, 2018: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29443354/assessment-of-myocardial-fibrosis-by-late-gadolinium-enhancement-imaging-and-biomarkers-of-collagen-metabolism-in-chronic-rheumatic-mitral-regurgitation
#18
Ruchika Meel, Richard Nethononda, Elena Libhaber, Therese Dix-Peek, Ferande Peters, Mohammed Essop
BACKGROUND: In chronic rheumatic mitral regurgitation (CRMR), involvement of the myocardium in the rheumatic process has been controversial. Therefore, we sought to study the presence of fibrosis using late gadolinium enhancement cardiac magnetic resonance imaging (LGE-CMR) and biomarkers of collagen turnover in CRMR. METHODS: Twenty-two patients with CRMR underwent CMR and echocardiography. Serum concentrations of matrix metalloproteinase- 1 (MMP-1), tissue inhibitor of MMP-1 (TIMP- 1), MMP-1-to-TIMP-1 ratio, procollagen III N-terminal pro-peptide (PIIINP) and procollagen type IC peptide (PIP) were measured...
February 6, 2018: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/29441510/translating-the-combination-of-gene-therapy-and-tissue-engineering-for-treating-recessive-dystrophic-epidermolysis-bullosa
#19
A Dakiw Piaceski, D Larouche, K Ghani, F Bisson, S Cortez Ghio, S Larochelle, M J Moulin, M Caruso, L Germain
The combination of gene therapy and tissue engineering is one of the most promising strategies for the treatment of recessive dystrophic epidermolysis bullosa (RDEB). RDEB is a rare genetic disease characterised by mutations in the COL7A1 gene, encoding type VII collagen (COLVII), which forms anchoring fibrils at the dermal-epidermal junction of the skin. This disease causes severe blistering and only palliative treatments are offered. In this study, the base of a strategy combining gene therapy and a tissue-engineered skin substitute (TES), which would be suitable for the permanent closure of skin wounds, was set-up...
February 14, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29441300/trauma-induced-focal-nodular-mucinoses-a-rare-entity
#20
Gunjan Verma, Pooja A Mrig, R K Gautam, Purnima Malhotra
Cutaneous mucinoses refer to disorders with abnormal accumulation of mucin in the skin. Mucin is an amorphous material that is a part of the extracellular matrix in dermis. Cutaneous mucinoses could be primary or secondary. The latter is associated with systemic disorders such as autoimmune diseases, diabetes mellitus, paraproteinemia, or altered thyroid function. Here, we report an adult female patient with trauma-induced cutaneous focal nodular mucinoses on left-sided scapular region. Histology showed replacement of collagen bundles by mucinous deposits in superficial and mid-dermis...
January 2018: Indian Dermatology Online Journal
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