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https://www.readbyqxmd.com/read/29343259/influence-of-apocynin-on-cardiac-remodeling-in-rats-with-streptozotocin-induced-diabetes-mellitus
#1
R Gimenes, C Gimenes, C M Rosa, N P Xavier, D H S Campos, A A H Fernandes, M D M Cezar, G N Guirado, L U Pagan, I D Chaer, D C Fernandes, F R Laurindo, A C Cicogna, M P Okoshi, K Okoshi
BACKGROUND: Increased reactive oxygen species (ROS) generation in diabetes mellitus (DM) is an important mechanism leading to diabetic cardiomyopathy. Apocynin, a drug isolated from the herb Picrorhiza kurroa, is considered an antioxidant agent by inhibiting NADPH oxidase activity and improving ROS scavenging. This study analyzed the influence of apocynin on cardiac remodeling in diabetic rats. METHODS: Six-month-old male Wistar rats were assigned into 4 groups: control (CTL, n = 15), control + apocynin (CTL + APO, n = 20), diabetes (DM, n = 20), and diabetes + apocynin (DM + APO, n = 20)...
January 17, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29341864/comparison-of-acute-kidney-injury-of-different-aetiology-reveals-in-common-mechanisms-of-tissue-damage
#2
Michael Hultström, Mediha Becirovic-Agic, Sofia Jönsson
Acute kidney injury (AKI) is a syndrome of reduced glomerular filtration rate (GFR) and urine production caused by a number of different diseases. It is associated with renal tissue damage. This tissue damage can cause tubular atrophy and interstitial fibrosis that leads to nephron loss and progression of chronic kidney disease (CKD). This review describes the in-common mechanisms behind tissue damage in AKI caused by different underlying diseases. Comparing six high-quality microarray studies of renal gene expression after AKI in disease models (gram-negative sepsis, gram-positive sepsis, ischemia-reperfusion, malignant hypertension, rhabdomyolysis and cisplatin toxicity) identified 5254 differentially expressed genes in at least one of the AKI models...
December 20, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/29337379/interleukin-17a-and-vascular-remodeling-in-severe-asthma-lack-of-evidence-for-a-direct-role
#3
Alice Panariti, Carolyn J Baglole, Veronica Sanchez, David H Eidelman, Sabah Hussain, Ron Olivenstein, James G Martin, Qutayba Hamid
BACKGROUND: Bronchial vascular remodeling may contribute to the severity of airway narrowing through mucosal congestion. Interleukin (IL)-17A is associated with the most severe asthmatic phenotype but whether it might contribute to vascular remodeling is uncertain. OBJECTIVE: To assess vascular remodeling in severe asthma and whether IL-17A directly or indirectly may cause endothelial cell activation and angiogenesis. METHODS: Bronchial vascularization was quantified in asthmatic subjects, COPD and healthy subjects together with the number of IL-17A+ cells as well as the concentration of angiogenic factors in the sputum...
January 16, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29335891/serum-bilirubin-concentration-is-associated-with-left-ventricular-remodeling-in-patients-with-type-2-diabetes-mellitus-a-cohort-study
#4
Tomoaki Inoue, Noriyuki Sonoda, Shinsuke Hiramatsu, Shinichiro Kimura, Yoshihiro Ogawa, Toyoshi Inoguchi
INTRODUCTION: Previous studies have shown that serum bilirubin concentration is inversely associated with the risk of cardiovascular disease. The relationship between serum bilirubin concentration and left ventricular geometry, however, has not been investigated in patients with diabetes mellitus. METHODS: In this cohort study, 158 asymptomatic patients with type 2 diabetes mellitus without overt heart disease were enrolled. Left ventricular structure and function were assessed using echocardiography...
January 15, 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29334656/activated-protein-c-suppresses-osteoclast-differentiation-via-endothelial-protein-c-receptor-protease-activated-receptor-1-sphingosine-1-phosphate-receptor-and-apolipoprotein-e-receptor-2
#5
Kakunoshin Yoshida, Nobuyuki Akita, Takayuki Okamoto, Kunihiro Asanuma, Atsumasa Uchida, Akihiro Sudo, Motomu Shimaoka, Koji Suzuki, Tatsuya Hayashi
INTRODUCTION: Bone remodeling relies on a delicate balance between formation and resorption of bone tissues, processes in which bone-forming osteoblasts and bone-resorbing osteoclasts play central roles. Recently, we reported that anticoagulant activated protein C (APC) promotes osteoblast proliferation, but the role of the blood coagulation system in bone remodeling remains unclear. In this study, to further elucidate the relationship between bone remodeling and blood coagulation, we investigated the effect of APC on osteoclast differentiation...
January 3, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29333657/gelatin-methacryloyl-hydrogels-in-the-absence-of-a-crosslinker-as-3d-glioblastoma-multiforme-gbm-mimetic-microenvironment
#6
Pelin Erkoc, Fidan Seker, Tugba Bagci-Onder, Seda Kizilel
3D platforms are important for monitoring tumor progression and screening drug candidates to eradicate tumors such as glioblastoma multiforme (GBM), a malignant type of human brain tumor. Here, a new strategy is reported that exploits visible-light-induced crosslinking of gelatin where the reaction is carried out in the absence of an additional crosslinker. Visible light-induced crosslinking promotes the design of cancer microenvironment-mimetic system without compromising the cell viability during the process and absence of crosslinker facilitates the synthesis of the unique construct...
January 15, 2018: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29332195/histomorphometry-and-cortical-robusticity-of-the-adult-human-femur
#7
Justyna Jolanta Miszkiewicz, Patrick Mahoney
Recent quantitative analyses of human bone microanatomy, as well as theoretical models that propose bone microstructure and gross anatomical associations, have started to reveal insights into biological links that may facilitate remodeling processes. However, relationships between bone size and the underlying cortical bone histology remain largely unexplored. The goal of this study is to determine the extent to which static indicators of bone remodeling and vascularity, measured using histomorphometric techniques, relate to femoral midshaft cortical width and robusticity...
January 13, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29330358/pathogenesis-of-bone-disease-in-multiple-myeloma-from-bench-to-bedside
#8
REVIEW
Evangelos Terpos, Ioannis Ntanasis-Stathopoulos, Maria Gavriatopoulou, Meletios A Dimopoulos
Osteolytic bone disease is the hallmark of multiple myeloma, which deteriorates the quality of life of myeloma patients, and it affects dramatically their morbidity and mortality. The basis of the pathogenesis of myeloma-related bone disease is the uncoupling of the bone-remodeling process. The interaction between myeloma cells and the bone microenvironment ultimately leads to the activation of osteoclasts and suppression of osteoblasts, resulting in bone loss. Several intracellular and intercellular signaling cascades, including RANK/RANKL/OPG, Notch, Wnt, and numerous chemokines and interleukins are implicated in this complex process...
January 12, 2018: Blood Cancer Journal
https://www.readbyqxmd.com/read/29330042/differences-in-the-ct-findings-between-vulnerable-plaque-and-culprit-lesions-in-acute-coronary-syndrome
#9
Eun Ju Chun, Jin Hee Han, Seung Min Yoo, Hwa Yeon Lee, In Sup Song, Charles S White
BACKGROUND: The CT finding of "vulnerable plaque" is widely regarded as similar to that of a culprit lesion in an acute coronary syndrome (ACS). However, this hypothesis may not be accurate, since "vulnerable plaques" may substantially change their morphology when they rupture to cause an ACS. METHODS: We retrospectively evaluated coronary CT angiography data sets of 25 patients with ACS who had vulnerable (n = 10) or culprit plaques (n = 15). We analyzed CT features including positive remodeling (PR), low attenuation plaque (LAP), the napkin ring sign (NRS), degree of stenosis (normal, <50%, 50-99%, 100%), and myocardial hypoperfusion in the left ventricle...
January 5, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29328785/immune-responses-in-the-liver
#10
Paul Kubes, Craig Jenne
The liver is a key, frontline immune tissue. Ideally positioned to detect pathogens entering the body via the gut, the liver appears designed to detect, capture, and clear bacteria, viruses, and macromolecules. Containing the largest collection of phagocytic cells in the body, this organ is an important barrier between us and the outside world. Importantly, as portal blood also transports a large number of foreign but harmless molecules (e.g., food antigens), the liver's default immune status is anti-inflammatory or immunotolerant; however, under appropriate conditions, the liver is able to mount a rapid and robust immune response...
January 12, 2018: Annual Review of Immunology
https://www.readbyqxmd.com/read/29327894/cell-therapy-for-heart-disease-current-status-and-future-directions
#11
Arunpreet Kahlon, Gaurang Vaidya, Roberto Bolli
Treatment of ischemic heart disease has evolved considerably over time, seeing a technological impetus in recent times. Prompt diagnosis and progressively earlier reperfusion of the infarct artery have become the cornerstone of the early myocardial ischemia management. However, treatment of post-infarction sequelae resulting from ischemic damage sustained within the myocardium remains a considerable challenge. In this setting, stem cell therapy has emerged as an exciting regenerative modality with a promise to arrest or even reverse the pathological myocardial remodeling...
January 10, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29323272/dominant-negative-smarca4-mutants-alter-the-accessibility-landscape-of-tissue-unrestricted-enhancers
#12
H Courtney Hodges, Benjamin Z Stanton, Katerina Cermakova, Chiung-Ying Chang, Erik L Miller, Jacob G Kirkland, Wai Lim Ku, Vaclav Veverka, Keji Zhao, Gerald R Crabtree
Mutation of SMARCA4 (BRG1), the ATPase of BAF (mSWI/SNF) and PBAF complexes, contributes to a range of malignancies and neurologic disorders. Unfortunately, the effects of SMARCA4 missense mutations have remained uncertain. Here we show that SMARCA4 cancer missense mutations target conserved ATPase surfaces and disrupt the mechanochemical cycle of remodeling. We find that heterozygous expression of mutants alters the open chromatin landscape at thousands of sites across the genome. Loss of DNA accessibility does not directly overlap with Polycomb accumulation, but is enriched in 'A compartments' at active enhancers, which lose H3K27ac but not H3K4me1...
January 2018: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/29322896/influence-of-varus-valgus-positioning-of-the-nanos%C3%A2-and-metha%C3%A2-short-stemmed-prostheses-on-stress-shielding-of-metaphyseal-bone
#13
V Brinkmann, F Radetzki, N Gutteck, S Delank, A Zeh
The aim of this study was to analyze bone remodeling around the Nanos® (Smith & Nephew) and Metha® (Aesculap AG) implants as a function of varus/valgus stem positioning. In 75 patients with diagnosed coxarthrosis, either Nanos® (n= 51) or Metha® (n= 24) prostheses were implanted. Digital assessment of plain radiographs immediately, 97 days, and 381 days after THA showed no clinically-relevant migration, angulation, or change in offset and center of rotation. The DEXA scans showed significant BMD changes in Gruen zones 1 (-12...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29322167/use-of-high-risk-coronary-atherosclerotic-plaque-detection-for-risk-stratification-of-patients-with-stable-chest-pain-a-secondary-analysis-of-the-promise-randomized-clinical-trial
#14
Maros Ferencik, Thomas Mayrhofer, Daniel O Bittner, Hamed Emami, Stefan B Puchner, Michael T Lu, Nandini M Meyersohn, Alexander V Ivanov, Elizabeth C Adami, Manesh R Patel, Daniel B Mark, James E Udelson, Kerry L Lee, Pamela S Douglas, Udo Hoffmann
Importance: Coronary computed tomographic angiography (coronary CTA) can characterize coronary artery disease, including high-risk plaque. A noninvasive method of identifying high-risk plaque before major adverse cardiovascular events (MACE) could provide practice-changing optimizations in coronary artery disease care. Objective: To determine whether high-risk plaque detected by coronary CTA was associated with incident MACE independently of significant stenosis (SS) and cardiovascular risk factors...
January 10, 2018: JAMA Cardiology
https://www.readbyqxmd.com/read/29320586/safety-and-efficacy-of-a-1550nm-1927nm-dual-wavelength-laser-for-the-treatment-of-photodamaged-skin
#15
Vic A Narurkar, Tina S Alster, Eric F Bernstein, Tina J Lin, Anya Loncaric
<p>BACKGROUND: Fractional photothermolysis (FP) is a popular treatment option for photodamaged skin and addresses shortcomings of ablative skin resurfacing and nonablative dermal remodeling. Previous studies have demonstrated that FP using the 1550nm wavelength has led to improvement of ultrastructural changes and clinical effects associated with photodamaged skin in the deeper dermal structures, while treatment with the 1927nm wavelength has shown clinical effects in the superficial dermis. Both wavelengths produce precise microscopic treatment zones (MTZs) in the skin...
January 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29317988/endothelin-1-activation-in-pediatric-patients-undergoing-surgical-coarctation-of-the-aorta-repair
#16
Benjamin Steven Frank, Tracy T Urban, Suhong Tong, Courtney Cassidy, Max B Mitchell, Christopher S Nichols, Jesse A Davidson
AIM: To determine endothelin-1 (ET-1) concentration before and after surgical coarctectomy and evaluate its association with left ventricular geometric change. METHODS: A prospective, cohort study of 24 patients aged 2 d to 10 years with coarctation of the aorta undergoing surgical repair. A sub-cohort of patients with age < 1 mo was classified as "neonates". Echocardiograms were performed just prior to surgery and in the immediate post-op period to assess left ventricle mass index and relative wall thickness (RWT)...
December 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/29315934/effect-of-euk-134-on-akt-mtor-signaling-in-the-rat-soleus-during-7-days-of-mechanical-unloading
#17
J Matthew Kuczmarski, Jeff M Hord, Yang Lee, Vinicius Guzzoni, Dinah Rodriguez, Matthew S Lawler, Erika L Garcia-Villatoro, Dylan Holly, Patrick Ryan, Kristian Falcon, Marcela Garcia, Mariana Janini Gomes, James D Fluckey, John M Lawler
Mechanical unloading stimulates rapid changes in skeletal muscle morphology, characterized by atrophy of muscle fiber cross-sectional area (CSA) and a partial fiber-type shift from slow to fast-twitch. Recent studies revealed that oxidative stress contributes to activation of FoxO3a, proteolytic signaling and unloading-induced muscle atrophy via translocation of the mu-splice variant of neuronal nitric oxide synthase (nNOSμ) and activation of FoxO3a. Yet, there is limited understanding of the role of reactive oxygen species (ROS) on the Akt-mTOR pathway signaling during unloading...
January 8, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29314582/transcoronary-concentration-gradients-of-circulating-micrornas-in-heart-failure
#18
Salvatore De Rosa, Francesca Eposito, Cristina Carella, Antonio Strangio, Giuseppe Ammirati, Jolanda Sabatino, Fabio Giovanni Abbate, Claudio Iaconetti, Vincenzo Liguori, Valerio Pergola, Alberto Polimeni, Silvio Coletta, Clarice Gareri, Bruno Trimarco, Giuseppe Stabile, Antonio Curcio, Ciro Indolfi, Antonio Rapacciuolo
AIMS: Circulating levels of microRNAs (miRNAs) are emergent promising biomarkers for cardiovascular disease. Altered expression of miRNAs has been related to heart failure (HF) and cardiac remodelling. We measured the concentration gradients across the coronary circulation to assess their usefulness to diagnose HF of different aetiologies. METHODS AND RESULTS: Circulating miRNAs were measured in plasma samples simultaneously obtained from the aorta and the coronary venous sinus in patients with non-ischaemic HF (NICM-HF, n = 23) ischaemic HF (ICM-HF, n = 41), and in control patients (n = 11)...
January 4, 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29313133/influence-of-subcrestal-implant-placement-compared-with-equicrestal-position-on-the-peri-implant-hard-and-soft-tissues-around-platform-switched-implants-a-systematic-review-and-meta-analysis
#19
REVIEW
Cristina Valles, Xavier Rodríguez-Ciurana, Marco Clementini, Mariana Baglivo, Blanca Paniagua, Jose Nart
AIM: The aim of this article is to systematically review the effect of subcrestal implant placement compared with equicrestal position on hard and soft tissues around dental implants with platform switch. MATERIAL AND METHODS: A manual and electronic search (National Library of Medicine and Cochrane Central Register of Controlled Trials) was performed for animal and human studies published up to December 2016. Primary outcome variable was marginal bone level (MBL) and secondary outcomes were crestal bone level (CBL), soft tissue dimensions (barrier epithelium, connective tissue, and peri-implant mucosa), and changes in the position of soft tissue margin...
January 8, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29312635/lrp6-promotes-invasion-and-metastasis-of-colorectal-cancer-through-cytoskeleton-dynamics
#20
Qian Yao, Yu An, Wei Hou, Ya-Nan Cao, Meng-Fei Yao, Ning-Ning Ma, Lin Hou, Hong Zhang, Hai-Jing Liu, Bo Zhang
Low density lipoprotein (LDL) receptor-related protein-6 (LRP6) is an important co-receptor of Wnt pathway, which plays a predominant role in development and progression of colorectal cancer. Recently, dysregulation of LRP6 has proved to be involved in the progression of cancers, but its biological role and clinical significance in colorectal cancer remain unclear. In present study, we revealed that phosphorylation of LRP6 was aberrantly upregulated in colorectal carcinoma correlating with TNM or Dukes staging and worse prognosis...
December 12, 2017: Oncotarget
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