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https://www.readbyqxmd.com/read/28104445/the-sh3-domain-of-caskin1-binds-to-lysophosphatidic-acid-suggesting-a-direct-role-for-the-lipid-in-intracellular-signaling
#1
Kitti Koprivanacz, Orsolya Tőke, Balázs Besztercei, Tünde Juhász, László Radnai, Balázs Merő, Judith Mihály, Mária Péter, Gábor Balogh, László Vígh, László Buday, Károly Liliom
Src homology 3 or SH3 domains constitute one of the most common protein domains in signal transduction, generally characterized by their binding to proline-rich sequences on interacting signaling proteins. Caskin1, a scaffold protein regulating cortical actin filaments, enriched in neural synapses in mammals, has an atypical SH3 domain. Key aromatic residues necessary for ligand binding that are present in canonical SH3 domains are missing from Caskin1 SH3. In concordance, proline-rich interacting partner could not be identified yet...
January 16, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28101209/significance-of-interstitial-tumor-associated-macrophages-in-the-progression-of-lung-adenocarcinoma
#2
Bing-Sheng Sun, Bao-Xiang Pei, Kang Zhang, Lu-Chang Zhang, Guang-Jing Zhang, Ji-Kuan Liu, Hong-Wei Cui, Fen Pan, Zhen-Fa Zhang
Stepwise progression from adenocarcinoma in situ (AIS) and minimally invasive adenocarcinoma (MIA) to lepidic predominant adenocarcinoma (LPA) was proposed by various scholars. Interstitial tumor-associated macrophages (TAMs) and various potential chemokines involved in the progression from AIS/MIA to LPA were hypothesized. In the present study, immunohistochemistry or immunofluorescent double staining was used to detect the expression of the TAMs marker cluster of differentiation (CD) 68, tumor-derived colony-stimulating factor (CSF)-1, interleukin (IL)-6, matrix metalloproteinase (MMP)-2, E-cadherin and Snail in lung adenocarcinoma specimens, including AIS/MIA, LPA and other types...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28092973/elevated-ambulatory-systolic-diastolic-pressure-regression-index-is-genetically-determined-in-hypertensive-patients-with-coronary-heart-disease
#3
Marcin Wirtwein, Olle Melander, Marketa Sjőgren, Michal Hoffmann, Krzysztof Narkiewicz, Marcin Gruchala, Wojciech Sobiczewski
OBJECTIVES: Ambulatory systolic-diastolic pressure regression index (ASDPRI) as a composite marker of cardiovascular (CV) properties is related to CV complications. However, genetic determinants of ASDPRI are not known. The aim of this study is to report the relationship between certain single nucleotide polymorphisms (SNP) and ASDPRI in hypertensive patients with CAD confirmed by coronary angiography. METHODS: A total of 1345 hypertensive subjects with CAD were included...
January 16, 2017: Blood Pressure
https://www.readbyqxmd.com/read/28091937/ocular-mycobacteriosis-dual-infection-of-m-tuberculosis-complex-with-m-fortuitum-and-m-bovis
#4
Kusum Sharma, Natasha Gautam, Megha Sharma, Mohit Dogra, Priya Bajgai, Basavaraj Tigari, Aman Sharma, Vishali Gupta, Surya Prakash Sharma, Ramandeep Singh
BACKGROUND: We report unfavorable outcome in a patient with subretinal granuloma caused by dual infection of Mycobacterium tuberculosis complex with Mycobacterium fortuitum and Mycobacterium bovis in an immunosuppressed, non-HIV patient. We did a systematic review of literature on dual infection due to M. tuberculosis and M. fortuitum via MEDLINE and PUBMED and could not find any case reported of causing this kind of dual infection in the eye. RESULTS: A 38-year-old Indian male patient presented with decreased vision in the left eye for 3 months, diagnosed as tubercular choroidal granuloma with associated retinal angiomatosis proliferans (RAP) lesion...
December 2017: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/28087792/the-unfolding-of-lgbt-lives-key-events-associated-with-health-and-well-being-in-later-life
#5
Karen I Fredriksen-Goldsen, Amanda E B Bryan, Sarah Jen, Jayn Goldsen, Hyun-Jun Kim, Anna Muraco
PURPOSE OF THE STUDY: Life events are associated with the health and well-being of older adults. Using the Health Equity Promotion Model, this article explores historical and environmental context as it frames life experiences and adaptation of lesbian, gay, bisexual, and transgender (LGBT) older adults. DESIGN AND METHODS: This was the largest study to date of LGBT older adults to identify life events related to identity development, work, and kin relationships and their associations with health and quality of life (QOL)...
February 2017: Gerontologist
https://www.readbyqxmd.com/read/28077083/evaluation-of-the-line-probe-assay-for-the-rapid-detection-of-bacterial-meningitis-pathogens-in-cerebrospinal-fluid-samples-from-children
#6
Ahmet Soysal, Demet Gedikbasi Toprak, Salih Türkoğlu, Mustafa Bakir
BACKGROUND: The aim of this study is to compare the diagnostic performance of the line probe assay (LPA) with conventional multiplex polymerase chain reaction (PCR) for Streptococcus pneumoniae as well as real-time PCR for Neisseria meningitidis and Haemophilus influenzae type b (Hib) in cerebrospinal fluid (CSF) samples from children during the multicenter national surveillance of bacterial meningitis between the years 2006 and 2009 in Turkey. RESULTS: During the study period 1460 subjects were enrolled and among them 841 (57%) met the criteria for probable bacterial meningitis...
January 11, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28073697/proliferation-of-mouse-endometrial-stromal-cells-in-culture-is-highly-sensitive-to-lysophosphatidic-acid-signaling
#7
Shizu Aikawa, Kuniyuki Kano, Asuka Inoue, Naoto Hama, Yoshiharu Iwabuchi, Junken Aoki
Endometrial stromal cells (ESCs) proliferate rapidly both in vivo and in vitro. Here we show that proliferation of ESCs in vitro is strongly dependent on lysophosphatidic acid (LPA) signaling. LPA is produced by autotaxin (ATX) and induces various kinds of cellular processes including migration, proliferation and inhibition of cell death possibly through six G protein-coupled receptors (LPA1-6). We found that ESCs proliferated rapidly in vitro in an autocrine manner and that the proliferation was prominently suppressed by either an ATX inhibitor (ONO-8430506) or an LPA1/3 antagonist (Ki16425)...
January 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28069828/lpa1-receptor-mediated-thromboxane-a2-release-is-responsible-for-lysophosphatidic-acid-induced-vascular-smooth-muscle-contraction
#8
Péter Tibor Dancs, Éva Ruisanchez, Andrea Balogh, Cecília Rita Panta, Zsuzsanna Miklós, Rolf M Nüsing, Junken Aoki, Jerold Chun, Stefan Offermanns, Gábor Tigyi, Zoltán Benyó
Lysophosphatidic acid (LPA) has been recognized recently as an endothelium-dependent vasodilator, but several lines of evidence indicate that it may also stimulate vascular smooth muscle cells (VSMCs), thereby contributing to vasoregulation and remodeling. In the present study, mRNA expression of all 6 LPA receptor genes was detected in murine aortic VSMCs, with the highest levels of LPA1, LPA2, LPA4, and LPA6 In endothelium-denuded thoracic aorta (TA) and abdominal aorta (AA) segments, 1-oleoyl-LPA and the LPA1-3 agonist VPC31143 induced dose-dependent vasoconstriction...
January 9, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28069607/lysophosphatidic-acid-converts-monocytes-into-macrophages-in-both-mice-and-humans
#9
Rashmi Ray, Vivek Rai
Monocytes and macrophages represent critical arms of the innate immune system and are considered regulators and effectors of inflammation and innate immune response. Monocytes can mobilize from bone marrow, traffic to their required destination and differentiate into effector cells depending on the local tissue environment to perform multiple roles during infection or inflammation, making them an important component of body's immune defense. Macrophages have diverse roles in tissue homeostasis, development as well as tissue repair following injury...
January 9, 2017: Blood
https://www.readbyqxmd.com/read/28059143/influence-of-coronary-artery-disease-and-subclinical-atherosclerosis-related-polymorphisms-on-the-risk-of-atherosclerosis-in-rheumatoid-arthritis
#10
Raquel López-Mejías, Alfonso Corrales, Esther Vicente, Montserrat Robustillo-Villarino, Carlos González-Juanatey, Javier Llorca, Fernanda Genre, Sara Remuzgo-Martínez, Trinidad Dierssen-Sotos, José A Miranda-Filloy, Marco A Ramírez Huaranga, Trinitario Pina, Ricardo Blanco, Juan J Alegre-Sancho, Enrique Raya, Verónica Mijares, Begoña Ubilla, Iván Ferraz-Amaro, Carmen Gómez-Vaquero, Alejandro Balsa, Francisco J López-Longo, Patricia Carreira, Isidoro González-Álvaro, J Gonzalo Ocejo-Vinyals, Luis Rodríguez-Rodríguez, Benjamín Fernández-Gutiérrez, Santos Castañeda, Javier Martín, Miguel A González-Gay
A genetic component influences the development of atherosclerosis in the general population and also in rheumatoid arthritis (RA). However, genetic polymorphisms associated with atherosclerosis in the general population are not always involved in the development of cardiovascular disease (CVD) in RA. Accordingly, a study in North-American RA patients did not show the association reported in the general population of coronary artery disease with a series of relevant polymorphisms (TCF21, LPA, HHIPL1, RASD1-PEMT, MRPS6, CYP17A1-CNNM2-NT5C2, SMG6-SRR, PHACTR1, WDR12 and COL4A1-COL4A2)...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28058100/non-mucinous-lepidic-predominant-adenocarcinoma-presenting-with-extensive-aerogenous-spread
#11
Yusuke Takanashi, Shogo Tajima, Masaru Tsukui, Kazuya Shinmura, Takamitsu Hayakawa, Tsuyoshi Takahashi, Hiroshi Neyatani, Kazuhito Funai
An extremely rare case of non-mucinous lepidic-predominant invasive adenocarcinoma (LPA) showing extensive aerogenous spread with a pneumonic presentation is reported. A 73-year-old woman was referred to our hospital because of an infiltrative shadow on chest xray. Chest computed tomography revealed extensive ground glass opacities in the right lower lobe, which was accompanied by infiltrative shadow with a pneumonic presentation. Invasive mucinous adenocarcinoma was presumed, and a partial resection of the right lower lobe was done...
November 17, 2016: Rare Tumors
https://www.readbyqxmd.com/read/28053308/evaluation-of-left-pulmonary-artery-sling-associated-cardiovascular-anomalies-and-surgical-outcomes-using-cardiovascular-computed-tomography-angiography
#12
Jiajun Xie, Yu-Hsiang Juan, Qiushi Wang, Jimei Chen, Jian Zhuang, Zhaofeng Xie, Changhong Liang, Yulei Zhu, Zhuliang Yu, Jinglei Li, Sachin S Saboo, Hui Liu
We evaluated the prevalence, image appearance, associated cardiovascular anomalies, and surgical outcomes of left pulmonary artery sling (LPAS) using cardiovascular computed tomography angiography (CCTA). A retrospective search of patients from our database between October 2007 and December 2014 identified 52,200 patients with congenital heart diseases (CHD) referred for CCTA, echocardiography, or magnetic resonance imaging. Clinical information, CCTA findings, associated cardiovascular anomalies, and surgical outcomes were analyzed...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28050783/daily-intake-of-high-fat-diet-with-lysophosphatidic-acid-rich-soybean-phospholipids-augments-colon-tumorigenesis-in-kyoto-apc-delta-rats
#13
Toshihiko Tsutsumi, Manami Inoue, Yoko Okamoto, Akira Ishihara, Akira Tokumura
BACKGROUND: Oral administration of lysophosphatidic acid (LPA) was shown to attenuate gastric ulceration in rats and mice but aggravate intestinal tumorigenesis in mice. AIMS: The present study examined whether dietary LPA induces or prevents development of colorectal tumor in rats. METHODS: Kyoto Apc Delta rats fed high-fat diet with or without an LPA-rich soybean phospholipid mixture (LSP, 0.1 or 1%) were treated with azoxymethane and dextran sodium sulfate to induce colorectal tumorigenesis...
January 3, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28043605/xpert-mtb-rif-for-rapid-detection-of-rifampicin-resistant-mycobacterium-tuberculosis-from-pulmonary-tuberculosis-patients-in-southwest-ethiopia
#14
Mulualem Tadesse, Dossegnaw Aragaw, Belayneh Dimah, Feyisa Efa, Gemeda Abebe
OBJECTIVE/BACKGROUND: Accurate and rapid detection of drug-resistant strains of tuberculosis (TB) is critical for early initiation of treatment and for limiting the transmission of drug-resistant TB. Here, we investigated the accuracy of Xpert MTB/RIF for detection of rifampicin (RIF) resistance, and whether this detection predicts the presence of multidrug resistant (MDR) TB in Southwest Ethiopia. METHODS: Smear- or culture-positive sputa obtained from TB patients with increased suspicion of drug resistance were included in this study...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043548/discordance-between-genexpert-assay-and-conventional-drug-susceptibility-testing-in-detecting-rifampicin-resistant-tuberculosis-a-perspective-of-the-line-probe-assay
#15
Ruqaya M Ali, Ahmed A Alsudani
BACKGROUND: Early detection for tuberculosis (TB) and rifampicin-resistant TB (RRTB) is crucial for proper control of this disease. WHO recommended the use of the GeneXpert assay at district level to cover these two public health demands? A study evaluated the diagnostic impact of the GeneXpert assay in detecting TB and RRTB. Odd results were observed in this study in the form of discordance between the GeneXpert assay and the conventional culture and drug-susceptibility testing (DST)...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28040465/toll-like-receptor-2-promiscuity-is-responsible-for-the-immunostimulatory-activity-of-nucleic-acid-nanocarriers
#16
Malvina Pizzuto, Monique Gangloff, Daniel Scherman, Nicholas J Gay, Virginie Escriou, Jean-Marie Ruysschaert, Caroline Lonez
Lipopolyamines (LPAs) are cationic lipids; they interact spontaneously with nucleic acids to form lipoplexes used for gene delivery. The main hurdle to using lipoplexes in gene therapy lies in their immunostimulatory properties, so far attributed to the nucleic acid cargo, while cationic lipids were considered as inert to the immune system. Here we demonstrate for the first time that di-C18 LPAs trigger pro-inflammatory responses through Toll-like receptor 2 (TLR2) activation, and this whether they are bound to nucleic acids or not...
December 28, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28033022/students-motivational-profiles-in-the-physical-education-context
#17
John Ck Wang, Alexandre Js Morin, Richard M Ryan, W C Liu
The purpose of the current study is to test Self-Determination Theory (SDT) continuum hypothesis of motivation using Latent Profile Analysis (LPA). A total of 3220 school students took part in the study. We compared LPA solutions using the four motivation types versus the two higher-order dimensions to assess their degree of correspondence to SDT continuum hypothesis. To examine the concurrent validity of the profiles, we also verified their associations with three predictors (age, gender, perception of physical education teachers' autonomy-supportive behaviors) and two outcomes variables (perceived competence and intentions to be physically active)...
December 29, 2016: Journal of Sport & Exercise Psychology
https://www.readbyqxmd.com/read/28028754/alteration-of-lysophosphatidylcholine-related-metabolic-parameters-in-the-plasma-of-mice-with-experimental-sepsis
#18
Won-Gyun Ahn, Jun-Sub Jung, Hyeok Yil Kwon, Dong-Keun Song
Plasma concentration of lysophosphatidylcholine (LPC) was reported to decrease in patients with sepsis. However, the mechanisms of sepsis-induced decrease in plasma LPC levels are not currently well known. In mice subjected to cecal ligation and puncture (CLP), a model of polymicrobial peritoneal sepsis, we examined alterations in LPC-related metabolic parameters in plasma, i.e., the plasma concentration of LPC-related substances (i.e., phosphatidylcholine (PC) and lysophosphatidic acid (LPA)), and activities or levels in the plasma of some enzymes that can be involved in the regulation of plasma LPC concentration (i...
December 28, 2016: Inflammation
https://www.readbyqxmd.com/read/28028053/mrtf-potentiates-tead-yap-transcriptional-activity-causing-metastasis
#19
Tackhoon Kim, Daehee Hwang, Dahye Lee, Jeong-Hwan Kim, Seon-Young Kim, Dae-Sik Lim
Yes-associated protein (YAP) and myocardin-related transcription factor (MRTF) play similar roles and exhibit significant crosstalk in directing transcriptional responses to chemical and physical extracellular cues. The mechanism underlying this crosstalk, however, remains unclear. Here, we show MRTF family proteins bind YAP via a conserved PPXY motif that interacts with the YAP WW domain. This interaction allows MRTF to recruit NcoA3 to the TEAD-YAP transcriptional complex and potentiate its transcriptional activity...
December 27, 2016: EMBO Journal
https://www.readbyqxmd.com/read/28018853/mri-flair-lesion-segmentation-in-multiple-sclerosis-does-automated-segmentation-hold-up-with-manual-annotation
#20
Christine Egger, Roland Opfer, Chenyu Wang, Timo Kepp, Maria Pia Sormani, Lothar Spies, Michael Barnett, Sven Schippling
INTRODUCTION: Magnetic resonance imaging (MRI) has become key in the diagnosis and disease monitoring of patients with multiple sclerosis (MS). Both, T2 lesion load and Gadolinium (Gd) enhancing T1 lesions represent important endpoints in MS clinical trials by serving as a surrogate of clinical disease activity. T2- and fluid-attenuated inversion recovery (FLAIR) lesion quantification - largely due to methodological constraints - is still being performed manually or in a semi-automated fashion, although strong efforts have been made to allow automated quantitative lesion segmentation...
2017: NeuroImage: Clinical
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