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https://www.readbyqxmd.com/read/27931595/transcatheter-closure-of-patent%C3%A2-ductus%C3%A2-arteriosus-in-extremely%C3%A2-premature%C3%A2-newborns-early-results-and-midterm-follow-up
#1
Evan M Zahn, Daniel Peck, Alistair Phillips, Phillip Nevin, Kaylan Basaker, Charles Simmons, Marion E McRae, Tracy Early, Ruchira Garg
OBJECTIVES: The goal of this study was to describe early and midterm outcomes of extremely premature newborns (EPNs) who underwent transcatheter echocardiographically guided patent ductus arteriosus (PDA) closure. BACKGROUND: Surgical ligation of PDA in EPNs confers significant risk for procedural morbidity and adverse long-term outcomes. METHODS: The Amplatzer Vascular Plug II was used in all cases. Post-ligation syndrome was defined using previously published parameters...
December 12, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27927603/lysophosphatidic-acid-signaling-through-its-receptor-initiates-profibrotic-epithelial-cell-fibroblast-communication-mediated-by-epithelial-cell-derived-connective-tissue-growth-factor
#2
Norihiko Sakai, Jerold Chun, Jeremy S Duffield, David Lagares, Takashi Wada, Andrew D Luster, Andrew M Tager
The expansion of the fibroblast pool is a critical step in organ fibrosis, but the mechanisms driving expansion remain to be fully clarified. We previously showed that lysophosphatidic acid (LPA) signaling through its receptor LPA1 expressed on fibroblasts directly induces the recruitment of these cells. Here we tested whether LPA-LPA1 signaling drives fibroblast proliferation and activation during the development of renal fibrosis. LPA1-deficient (LPA1(-/-)) or -sufficient (LPA1(+/+)) mice were crossed to mice with green fluorescent protein expression (GFP) driven by the type I procollagen promoter (Col-GFP) to identify fibroblasts...
December 4, 2016: Kidney International
https://www.readbyqxmd.com/read/27915992/plasma-phospholipids-are-associated-with-mild-cognitive-impairment-in-type-2-diabetic-patients
#3
Jin-Biao Zhang, Yan-Nan Cong, Zhen-Guang Li, Hai-Rong Sun, Jiang-Shan Zhang, Peng-Fei Wang, Qi-Zhan Wu
Phospholipids (PLs) and their metabolisms are closely allied to nosogenesis and aggravation of Type 2 diabetes mellitus and cognitive impairment. The aim of this study is to characterize the plasma levels of phospholipids in type 2 diabetes patients and type 2 diabetes patients with mild cognitive impairment (MCI), and to identify potential biomarkers of type 2 diabetes patients with MCI. In this cross-sectional study, A total of 374 type 2 diabetes patients were prospectively enrolled. There were 103 patients with MCI and 271 patients without MCI (control)...
December 1, 2016: Current Alzheimer Research
https://www.readbyqxmd.com/read/27901295/nonparametric-de-noising-filter-optimization-using-structure-based-microscopic-image-classification
#4
Samsad Beagum, Nilanjan Dey, Amira S Ashour, Dimitra Sifaki-Pistolla, Valentina E Balas
The Local Polynomial Approximation (LPA) is a nonparametric filter that performs pixel-wise polynomial fit on a certain neighborhood. This filter can be supported by the Intersection of Confidence Interval rule (ICI) as an adaptation algorithm to identify the most suited neighborhood at which the polynomial assumptions provide superior fit for the observations. However, the LPA-ICI is considered to be a near-optimal de-noising filter. Moreover, the ICI rule has several parameters that affect its performance...
November 30, 2016: Microscopy Research and Technique
https://www.readbyqxmd.com/read/27888760/relationship-between-selected-dna-polymorphisms-and-coronary-artery-disease-complications
#5
Marcin Wirtwein, Olle Melander, Marketa Sjőgren, Michal Hoffmann, Krzysztof Narkiewicz, Marcin Gruchala, Wojciech Sobiczewski
BACKGROUND: Coronary heart disease (CHD) development is complex in origin, with contributions from well-defined lifestyle and not well-determined genetic risk factors. The aim of this study is to report the relationship between certain SNPs and the risk of cardiovascular (CV) complications in patients with CAD confirmed by coronary angiography. METHODS: In the present study, 1345 subjects with CHD were included. The median follow-up period was 8.6years. 19 SNPs were investigated for any association with Major Advanced CV Events (MACE), Acute Coronary Syndromes (ACS) and Revascularizations...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27888146/a-rhodium-iii-based-inhibitor-of-autotaxin-with-antiproliferative-activity
#6
Tian-Shu Kang, Wanhe Wang, Hai-Jing Zhong, Jia-Xin Liang, Chung-Nga Ko, Jin-Jian Lu, Xiu-Ping Chen, Dik-Lung Ma, Chung-Hang Leung
BACKGROUND: Cancer of the skin is by far the most common of all cancers. Melanoma accounts for only about 1% of skin cancers but causes a large majority of skin cancer deaths. Autotaxin (ATX), also known as ectonucleotide pyrophosphatase/phosphodiesterase 2 (ENPP2), regulates physiological and pathological functions of lysophosphatidic acid (LPA), and is thus an important therapeutic target. METHODS: We synthesized ten metal-based complexes and a novel cyclometalated rhodium(III) complex 1 was identified as an ATX enzymatic inhibitor using multiple methods, including ATX enzymatic assay, thermal shift assay, western immunoblotting and so on...
November 23, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27883058/role-of-ectonucleotide-pyrophosphatase-phosphodiesterase-2-in-the-midline-axis-formation-of-zebrafish
#7
Frisca Frisca, Daniel Colquhoun, Yona Goldshmit, Minna-Liisa Änkö, Alice Pébay, Jan Kaslin
Lysophosphatidic acid (LPA) is a unique bioactive lysophospholipid that induces pleiotropic effects in various cell types and organisms by acting on its specific receptors. LPA is mainly synthetised extracellularly by the ectonucleotide pyrophosphatase/phosphodiesterase 2/autotaxin (enpp2). Altered LPA signalling is associated with embryonic abnormalities, suggesting critical roles for LPA during development. However, the role of LPA signalling during early embryogenesis is not well established. We demonstrate that enpp2/LPA signalling in the early zebrafish embryo results in altered axis and midline formation, defects in left right (L-R) patterning, ciliogenesis of the Kupffer's vesicle (KV), through the modulation of cell migration during gastrulation in a lpar1-3 Rho/ROCK-dependant manner...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27883026/inhibition-of-lysophosphatidic-acid-receptors-1-and-3-attenuates-atherosclerosis-development-in-ldl-receptor-deficient-mice
#8
Eva Kritikou, Gijs H M van Puijvelde, Thomas van der Heijden, Peter J van Santbrink, Maarten Swart, Frank H Schaftenaar, Mara J Kröner, Johan Kuiper, Ilze Bot
Lysophosphatidic acid (LPA) is a natural lysophospholipid present at high concentrations within lipid-rich atherosclerotic plaques. Upon local accumulation in the damaged vessels, LPA can act as a potent activator for various types of immune cells through its specific membrane receptors LPA1/3. LPA elicits chemotactic, pro-inflammatory and apoptotic effects that lead to atherosclerotic plaque progression. In this study we aimed to inhibit LPA signaling by means of LPA1/3 antagonism using the small molecule Ki16425...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27878789/regional-sociocultural-differences-as-important-correlate-of-physical-activity-and-sedentary-behaviour-in-swiss-preschool-children
#9
Claudia S Leeger-Aschmann, Einat A Schmutz, Thomas Radtke, Tanja H Kakebeeke, Annina E Zysset, Nadine Messerli-Bürgy, Kerstin Stülb, Amar Arhab, Andrea H Meyer, Simone Munsch, Oskar G Jenni, Jardena J Puder, Susi Kriemler
QUESTION: Regional differences in physical activity in school-aged children and adults even within one country with the same political and health care system have been observed and could not be explained by sociodemographic or individual variables. We analysed whether such differences were already present in preschool children. METHODS: Swiss children from 84 childcare centres in five cantons (Aargau, Bern, Fribourg, Vaud, Zurich) comprising about 50% of the population of the country participated...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27874303/physical-activity-patterns-in-youth-with-intellectual-disabilities
#10
Samantha J Downs, Stuart J Fairclough, Zoe R Knowles, Lynne M Boddy
The aim of this study was to assess the physical activity (PA) patterns of youth with intellectual disabilities (ID). PA was monitored for 7 days in 70 participants, 5-15 years old, using accelerometers. There were 32 participants included in the final analysis. Habitual PA and the number of continuous bouts accrued for a range of bout lengths (5-600 s) for light (LPA), moderate (MPA), and vigorous (VPA) PA were calculated. Multivariate analysis of covariance was used to assess differences in the number of continuous bouts by sex, age, and ID group and between week and weekend days...
October 2016: Adapted Physical Activity Quarterly: APAQ
https://www.readbyqxmd.com/read/27866675/hemodynamics-of-patient-specific-aorta-pulmonary-shunt-configurations
#11
Senol Piskin, H Firat Altin, Okan Yildiz, Ihsan Bakir, Kerem Pekkan
Optimal hemodynamics in aorta-pulmonary shunt reconstruction is essential for improved post-operative recovery of the newborn congenital heart disease patient. However, prior to in vivo execution, the prediction of post-operative hemodynamics is extremely challenging due to the interplay of multiple confounding physiological factors. It is hypothesized that the post-operative performance of the surgical shunt can be predicted through computational blood flow simulations that consider patient size, shunt configuration, cardiac output and the complex three-dimensional disease anatomy...
November 11, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27865234/rapid-detection-of-extensively-drug-resistant-xdr-tb-strains-from-multidrug-resistant-tuberculosis-mdr-tb-cases-isolated-from-smear-negative-pulmonary-samples-in-an-intermediate-reference-laboratory-in-india
#12
Himanshu Vashistha, M Hanif, Sanjeev Saini, Ashwani Khanna, Srashty Sharma, Zeeshan Sidiq, Vasim Ahmed, Manoj Dubey, K K Chopra, Divya Shrivastava
BACKGROUND: Direct sputum smear microscopy is commonly used for diagnosing tuberculosis (TB). The objectives of the study were first, to determine the recovery of Mycobacterium tuberculosis in smear-negative sputum samples through liquid culture (using MGIT 960) and solid culture (using LJ slant) and second, to screen multidrug-resistant isolates through line probe assay and further third, to identify XDR isolates through MGIT second-line DST from these positive MDR cultures in Delhi region...
July 2016: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/27864940/endogenous-lpa1-receptor-agonists-demonstrate-ligand-bias-between-calcium-and-erk-signalling-pathways-in-human-lung-fibroblasts
#13
Afrah Sattikar, Mark R Dowling, Elizabeth M Rosethorne
BACKGROUND AND PURPOSE: Human lung fibroblasts (HLF) express high levels of the LPA1 receptor, a G protein-coupled receptor (GPCR) that responds to the endogenous lipid mediator lysophosphatidic acid (1-acyl-2-hydroxy-sn-glycero-3-phosphate; LPA). Several molecular species or analogues of LPA exist and have been detected in biological fluids such as serum and plasma. The most widely expressed of the LPA receptor family is the LPA1 receptor, which predominantly couples to Gq/11 , Gi/o and G12/13 proteins...
November 16, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27864362/identification-of-lysophosphatidic-acid-receptor-1-in-astroglial-cells-as-a-target-for-glial-cell-line-derived-neurotrophic-factor-expression-induced-by-antidepressants
#14
Naoto Kajitani, Kanako Miyano, Mami Okada-Tsuchioka, Hiromi Abe, Kei Itagaki, Kazue Hisaoka-Nakashima, Norimitsu Morioka, Yasuhito Uezono, Minoru Takebayashi
Preclinical and clinical evidence suggests that glial cell line-derived neurotrophic factor (GDNF) is important in the therapeutic effect of antidepressants. A previous study demonstrated that the tricyclic antidepressant amitriptyline induces Gαi/o activation, which leads to GDNF expression in astrocytes. However, the specific target expressed in astrocytes that mediates antidepressant-evoked Gαi/o activation has yet to be identified. Thus, the current study explored the possibility that antidepressant-induced Gαi/o activation depends on lysophosphatidic acid receptor 1 (LPAR1), a Gαi/o-coupled receptor...
November 18, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27847440/gintonin-facilitates-catecholamine-secretion-from-the-perfused-adrenal-medulla
#15
Seung-Yeol Na, Ki-Hwan Kim, Mi-Sung Choi, Kang-Su Ha, Dong-Yoon Lim
The present study was designed to investigate the characteristics of gintonin, one of components isolated from Korean Ginseng on secretion of catecholamines (CA) from the isolated perfused model of rat adrenal gland and to clarify its mechanism of action. Gintonin (1 to 30 µg/ml), perfused into an adrenal vein, markedly increased the CA secretion from the perfused rat adrenal medulla in a dose-dependent fashion. The gintonin-evoked CA secretion was greatly inhibited in the presence of chlorisondamine (1 µM, an autonomic ganglionic bloker), pirenzepine (2 µM, a muscarinic M1 receptor antagonist), Ki14625 (10 µM, an LPA1/3 receptor antagonist), amiloride (1 mM, an inhibitor of Na(+)/Ca(2+) exchanger), a nicardipine (1 µM, a voltage-dependent Ca(2+) channel blocker), TMB-8 (1 µM, an intracellular Ca(2+) antagonist), and perfusion of Ca(2+)-free Krebs solution with 5mM EGTA (a Ca(2+)chelater), while was not affected by sodium nitroprusside (100 µM, a nitrosovasodialtor)...
November 2016: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/27831500/the-lpa-gene-ethnicity-and-cardiovascular-events
#16
Sang-Rok Lee, Anand Prasad, Yun-Seok Choi, Chao Xing, Paul Clopton, Joseph L Witztum, Sotirios Tsimikas
BACKGROUND: -The relationship of LPA single nucleotide polymorphisms (SNPs), apolipoprotein(a) isoforms and lipoprotein(a) [Lp(a)] levels with major adverse cardiovascular (MACE) events in different ethnic groups is not well known. METHODS: -LPA SNPs, apolipoprotein(a) isoforms, Lp(a) and oxidized phospholipids on apolipoprotein B-100 (OxPL-apoB) levels were measured in 1792 Black, 1030 White and 597 Hispanic subjects enrolled in the Dallas Heart Study. Their interdependent relationships and prospective association with MACE after median 9...
November 9, 2016: Circulation
https://www.readbyqxmd.com/read/27821413/lipoprotein-a-a-historical-appraisal
#17
Karam M Kostner, Gert M Kostner
Initially, Lp(a) was believed to be a genetic variant of lipoprotein-B. Since its lipid moiety is almost identical to LDL, Lp(a) has been deliberately considered to be highly atherogenic. Lp(a) was detected in 1963 by Kare Berg, and individuals who were positive for this factor were called Lpa+. Lpa+ individuals were found more frequently in patients with coronary heart disease (CHD) than in controls. After the introduction of quantitative methods for measuring Lp(a), it became apparent that Lp(a) in fact is present in all individuals, yet to a greatly variable extent...
November 7, 2016: Journal of Lipid Research
https://www.readbyqxmd.com/read/27816381/objectively-measured-physical-activity-and-mortality-risk-among-american-adults
#18
Emily Borgundvaag, Ian Janssen
INTRODUCTION: One major limitation of prior studies examining the influence of physical activity on mortality is use of self-reported measures. This study examined the association between objectively measured light physical activity (LPA) and moderate to vigorous physical activity (MVPA) and all-cause mortality. METHODS: This study included 5,562 adults from the 2003-2006 National Health and Nutrition Examination Survey. LPA and MVPA were measured over 4-7 days using Actigraph AM-7164 accelerometers...
November 2, 2016: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27809800/lpa-receptor-1-mediates-lpa-induced-ovarian-cancer-metastasis-an-in-vitro-and-in-vivo-study
#19
Xuechen Yu, Yuanzhen Zhang, Huijun Chen
BACKGROUND: The facts that LPA is present at high concentration in ovarian cancer patients' ascites and it may serve as a stimulator to cell migration, implicate the role of LPA in the ovarian cancer metastasis. Since LPA mediates various biological functions through its interaction with LPA receptors, we aim to investigate the correlation between the expression of LPA receptors and the metastasis of ovarian cancer. METHODS: To test whether the LPA responsiveness correlated with the metastatic capability of ovarian cancer cells, we performed LPA induced invasion assay and peritoneal metastatic colonization assay with a panel of established human ovarian cancer cell lines...
November 4, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27808166/lpa-receptor-activity-is-basal-specific-and-coincident-with-early-pregnancy-and-involution-during-mammary-gland-postnatal-development
#20
Deanna Acosta, Susmita Bagchi, Pilib Ó Broin, Daniel Hollern, Silvia E Racedo, Bernice Morrow, Rani S Sellers, John M Greally, Aaron Golden, Eran Andrechek, Teresa Wood, Cristina Montagna
During pregnancy, luminal and basal epithelial cells of the adult mammary gland proliferate and differentiate resulting in remodeling of the adult gland. While pathways that control this process have been characterized in the gland as a whole, the contribution of specific cell subtypes, in particular the basal compartment, remains largely unknown. Basal cells provide structural and contractile support, however they also orchestrate the communication between the stroma and the luminal compartment at all developmental stages...
November 3, 2016: Scientific Reports
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