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https://www.readbyqxmd.com/read/28919773/sickle-cell-retinopathy-improving-care-with-a-multidisciplinary-approach
#1
REVIEW
Farid Menaa, Barkat Ali Khan, Bushra Uzair, Abder Menaa
Sickle cell retinopathy (SCR) is the most representative ophthalmologic complication of sickle cell disease (SCD), a hemoglobinopathy affecting both adults and children. SCR presents a wide spectrum of manifestations and may even lead to irreversible vision loss if not properly diagnosed and treated at the earliest. Over the past decade, multidisciplinary research developments have focused upon systemic, genetic, and ocular risk factors of SCR, enabling the clinician to better diagnose and manage these patients...
2017: Journal of Multidisciplinary Healthcare
https://www.readbyqxmd.com/read/28910164/botryoid-odontogenic-cyst-exploration-of-proliferative-activity-apoptosis-and-expression-of-tp53-and-bcl2-compared-to-the-histologically-identical-lateral-periodontal-and-gingival-cysts
#2
R S Redman, E Paal, S Chauhan, R Avers, N Bayley
The botryoid odontogenic cyst (BOC) is a rare, locally more aggressive variant of the usually indolent lateral periodontal cyst (LPC) and gingival cyst (GC). A recent case of BOC provided an opportunity for an exploratory study on the causes of its more aggressive behavior. The limited objective was to see if the BOC was sufficiently different from the other cysts to warrant an investment in a large study. Sections of neutral buffered formalin fixed, paraffin-embedded tissues from the BOC and archival specimens of four GCs, four LPCs and three odontogenic keratocysts (OKCs) were stained using immunohistochemistry for Ki-67, a marker of proliferating cells, caspase-3, a marker of cells undergoing apoptosis, tumor suppressor p53, and the apoptosis inhibitor BCL2...
September 14, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28900242/dietary-docosahexaenoic-acid-dha-as-lysophosphatidylcholine-but-not-as-free-acid-enriches-brain-dha-and-improves-memory-in-adult-mice
#3
Dhavamani Sugasini, Riya Thomas, Poorna C R Yalagala, Leon M Tai, Papasani V Subbaiah
Docosahexaenoic acid (DHA) is uniquely concentrated in the brain, and is essential for its function, but must be mostly acquired from diet. Most of the current supplements of DHA, including fish oil and krill oil, do not significantly increase brain DHA, because they are hydrolyzed to free DHA and are absorbed as triacylglycerol, whereas the transporter at blood brain barrier is specific for phospholipid form of DHA. Here we show that oral administration of DHA to normal adult mice as lysophosphatidylcholine (LPC) (40 mg DHA/kg) for 30 days increased DHA content of the brain by >2-fold...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28887301/the-phospholipase-pnpla7-functions-as-a-lysophosphatidylcholine-hydrolase-and-interacts-with-lipid-droplets-through-its-catalytic-domain
#4
Christoph Heier, Benedikt Kien, Feifei Huang, Thomas O Eichmann, Hao Xie, Rudolf Zechner, Ping-An Chang
Mammalian patatin-like phospholipase domain containing proteins (PNPLAs) are lipid metabolizing enzymes with essential roles in energy metabolism, skin barrier development, and brain function. A detailed annotation of enzymatic activities and structure-function relationships remains an important prerequisite to understand PNPLA functions in (patho-)physiology, for example, in disorders such as neutral lipid storage disease, non-alcoholic fatty liver disease, and neurodegenerative syndromes. In this study, we characterized the structural features controlling the subcellular localization and enzymatic activity of PNPLA7, a poorly annotated phospholipase linked to insulin signaling and energy metabolism...
September 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28886053/response-of-korean-pine-s-functional-traits-to-geography-and-climate
#5
Yichen Dong, Yanhong Liu
This study analyzed the characteristics of Korean pine (Pinus koraiensis) functional trait responses to geographic and climatic factors in the eastern region of Northeast China (41°-48°N) and the linear relationships among Korean pine functional traits, to explore this species' adaptability and ecological regulation strategies under different environmental conditions. Korean pine samples were collected from eight sites located at different latitudes, and the following factors were determined for each site: geographic factors-latitude, longitude, and altitude; temperature factors-mean annual temperature (MAT), growth season mean temperature (GST), and mean temperature of the coldest month (MTCM); and moisture factors-annual precipitation (AP), growth season precipitation (GSP), and potential evapotranspiration (PET)...
2017: PloS One
https://www.readbyqxmd.com/read/28874440/blocking-gp130-signaling-suppresses-autotaxin-expression-in-adipocytes-and-improves-insulin-sensitivity-in-diet-induced-obesity
#6
Shuhong Sun, Ran Wang, Jianwen Song, Ming Guan, Na Li, Xiaotian Zhang, Zhenwen Zhao, Junjie Zhang
Autotaxin (ATX), which is highly expressed and secreted by adipocytes, functions as the key enzyme to generate lysophosphatidic acid (LPA) from lysophosphatidylcholine (LPC). Adipose tissue is the main source of circulating ATX that modulates plasma LPA levels. Up-regulation of ATX expression in obese patients and mice is closely related with insulin resistance and impaired glucose tolerance. However, the mechanism of ATX expression in adipocytes remains largely unknown. In this study, we found that gp130-mediated JAK-STAT3 activation was required for abundant ATX expression in adipocytes...
September 5, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28872100/comparison-of-mid-term-clinical-outcomes-of-laparoscopic-partial-cystectomy-versus-conventional-partial-cystectomy-for-the-treatment-of-hepatic-hydatid-cyst
#7
Ilhan Ece, Huseyin Yilmaz, Serdar Yormaz, Bayram Çolak, Fahrettin Acar, Husnu Alptekin, Mustafa Sahin
BACKGROUND: The aim of this study was to compare the mid-term outcomes of open and laparoscopic partial cystectomy (LPC). METHODS: The medical records of patients who underwent conventional partial cystectomy (CPC) and LPC for liver hydatid cyst from May 2010 to February 2015 were retrospectively reviewed. Operative time, blood loss, length of hospital stay, post-operative morbidity, mortality and mid-term follow-up outcomes were evaluated. RESULTS: Amongst 130 patients, 38 patients were underwent LPC and 92 underwent CPC...
October 2017: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/28866129/inhibition-of-gaba-a-receptor-improved-special-memory-impairment-in-the-local-model-of-demyelination-in-rat-hippocampus
#8
Alireza Mousavi Majd, Forough Ebrahim Tabar, Arghavan Afghani, Sahand Ashrafpour, Samaneh Dehghan, Mohammad Gol, Manouchehr Ashrafpour, Fereshteh Pourabdolhossein
Cognitive impairment and memory deficit are common features in multiple Sclerosis patients. The mechanism of memory impairment in MS is unknown, but neuroimaging studies suggest that hippocampal demyelination is involved. Here, we investigate the role of GABA A receptor on spatial memory in the local model of hippocampal demyelination. Demyelination was induced in male Wistar rats by bilaterally injection of lysophosphatidylcholine (LPC) 1% into the CA1 region of the hippocampus. The treatment groups were received daily intraventricular injection of bicuculline (0...
September 1, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28860577/humans-with-latent-toxoplasmosis-display-altered-reward-modulation-of-cognitive-control
#9
Ann-Kathrin Stock, Danica Dajkic, Hedda Luise Köhling, Evelyn Heintschel von Heinegg, Melanie Fiedler, Christian Beste
Latent infection with Toxoplasma gondii has repeatedly been shown to be associated with behavioral changes that are commonly attributed to a presumed increase in dopaminergic signaling. Yet, virtually nothing is known about its effects on dopamine-driven reward processing. We therefore assessed behavior and event-related potentials in individuals with vs. without latent toxoplasmosis performing a rewarded control task. The data show that otherwise healthy young adults with latent toxoplasmosis show a greatly diminished response to monetary rewards as compared to their non-infected counterparts...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28855882/symmetrical-and-asymmetrical-interactions-between-facial-expressions-and-gender-information-in-face-perception
#10
Chengwei Liu, Ying Liu, Zahida Iqbal, Wenhui Li, Bo Lv, Zhongqing Jiang
To investigate the interaction between facial expressions and facial gender information during face perception, the present study matched the intensities of the two types of information in face images and then adopted the orthogonal condition of the Garner Paradigm to present the images to participants who were required to judge the gender and expression of the faces; the gender and expression presentations were varied orthogonally. Gender and expression processing displayed a mutual interaction. On the one hand, the judgment of angry expressions occurred faster when presented with male facial images; on the other hand, the classification of the female gender occurred faster when presented with a happy facial expression than when presented with an angry facial expression...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28843414/disentangling-conscious-from-unconscious-cognitive-processing-with-event-related-eeg-potentials
#11
REVIEW
B Rohaut, L Naccache
By looking for properties of consciousness, cognitive neuroscience studies have dramatically enlarged the scope of unconscious cognitive processing. This emerging knowledge inspired the development of new approaches allowing clinicians to probe and disentangle conscious from unconscious cognitive processes in non-communicating brain-injured patients both in terms of behaviour and brain activity. This information is extremely valuable in order to improve diagnosis and prognosis in such patients both at acute and chronic settings...
August 23, 2017: Revue Neurologique
https://www.readbyqxmd.com/read/28835677/ripk1-protects-hepatocytes-from-death-in-fas-induced-hepatitis
#12
Aveline Filliol, Muhammad Farooq, Claire Piquet-Pellorce, Valentine Genet, Marie-Thérèse Dimanche-Boitrel, Peter Vandenabeele, Mathieu J M Bertrand, Michel Samson, Jacques Le Seyec
Hepatocyte death is a central event during liver disease progression, in which immune cells play key roles by activating members of the Tumor Necrosis Factor Receptor Superfamily (TNFRSF), including TNFR1 (TNFRSF1A), Fas (TNFRSF6) and TRAIL-R2 (TNFRSF10B). Receptor Interacting Protein Kinase 1 (RIPK1) emerged as a signaling node downstream of these receptors. In the case of TNFR1, RIPK1 has been demonstrated to paradoxically serve as a scaffold to promote the survival of hepatocytes and as a kinase to kill them...
August 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28830718/cocaine-modifies-brain-lipidome-in-mice
#13
Yiyun Lin, Hui Gu, Linhong Jiang, Wei Xu, Chunqi Liu, Yan Li, Xinying Qian, Dandan Li, Zhuoling Li, Jing Hu, Huaqin Zhang, Wei Guo, Yinglan Zhao, Xiaobo Cen
Lipids are predominant components of the brain and key regulators for neural structure and function. The neuropsychopharmacological effect of cocaine has been intensively investigated; however, the impact of cocaine on brain lipid profiles is largely unknown. In this study, we used a LC-MS-based lipidomic approach to investigate the impact of cocaine on brain lipidome in two mouse models, cocaine-conditioned place preference (CPP) and hyperlocomotor models and the lipidome was profoundly modified in the nucleus accumbens (NAc) and striatum respectively...
August 19, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28829143/intermolecular-interactions-between-coencapsulated-drugs-inhibit-drug-crystallization-and-enhance-colloidal-stability-of-polymeric-micelles
#14
Ling Zhang, Hanzi Sun, Zhen Chen, Zhengsheng Liu, Niu Huang, Feng Qian
Novel "pairs" of drugs possessing pharmacological synergies could be encapsulated into polymeric micelles and exert superb therapeutic effects in vivo upon intravenous administration, with the prerequisite that the micelles remain stable. NADP(H) quinone oxidoreductase 1 (NQO1) inhibitors, such as β-lapachone (LPC) and tanshinone IIA (THA), are structurally and pharmacologically similar molecules that are poorly water-soluble, crystallize extremely fast, and demonstrate synergistic anticancer effect when used together with paclitaxel (PTX)...
September 1, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28817063/changes-in-lipids-and-inflammatory-markers-after-consuming-diets-high-in-red-meat-or-dairy-for-four-weeks
#15
Kirsty M Turner, Jennifer B Keogh, Peter J Meikle, Peter M Clifton
There is a body of evidence linking inflammation, altered lipid metabolism, and insulin resistance. Our previous research found that insulin sensitivity decreased after a four-week diet high in dairy compared to a control diet and to one high in red meat. Our aim was to determine whether a relationship exists between changes in insulin sensitivity and inflammatory biomarkers, or with lipid species. Fasting Tumor Necrosis Factor alpha (TNF-α), Tumor Necrosis Factor Receptor II (sTNF-RII), C-reactive protein (CRP), and lipids were measured at the end of each diet...
August 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28816555/chemical-utilization-of-albizia-lebbeck-leaves-for-developing-protein-concentrates-as-a-dietary-supplement
#16
Lutful Haque Khan, V K Varshney
In search of nonconventional sources of protein to combat widespread malnutrition, the possibility of developing a protein concentrate as an alternative dietary supplement from abundantly available yet poorly valorized leaves of Albizia lebbeck (siris) was examined. A process for recovery of leaf protein concentrate (LPC) from these leaves was optimized and applied for isolation of LPCs from lower, middle, and upper canopies of the tree. The optimized conditions (leaves to water 1:9, coagulation at pH 4.0 using 1 N citric acid at 90°C for 11 minutes) afforded LPCs containing protein 37...
August 17, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28810184/design-and-evaluation-of-a-parametric-model-for-cardiac-sounds
#17
Roilhi F Ibarra-Hernández, Miguel A Alonso-Arévalo, Alejandro Cruz-Gutiérrez, Ana L Licona-Chávez, Salvador Villarreal-Reyes
Heart sound analysis plays an important role in the auscultative diagnosis process to detect the presence of cardiovascular diseases. In this paper we propose a novel parametric heart sound model that accurately represents normal and pathological cardiac audio signals, also known as phonocardiograms (PCG). The proposed model considers that the PCG signal is formed by the sum of two parts: one of them is deterministic and the other one is stochastic. The first part contains most of the acoustic energy. This part is modeled by the Matching Pursuit (MP) algorithm, which performs an analysis-synthesis procedure to represent the PCG signal as a linear combination of elementary waveforms...
August 9, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28804608/remyelination-improvement-after-neurotrophic-factors-secreting-cells-transplantation-in-rat-spinal-cord-injury
#18
Shahnaz Razavi, Nazem Ghasemi, Mohammad Mardani, Hossein Salehi
OBJECTIVES: Neurotrophic factors secreting cells (NTS-SCs) may be a superior cell source for cell-based therapy in neurodegenerative diseases. NTS-SCs are able to secrete some neurotrophic Such as nerve growth factor and glia-derived neurotrophic factor. Our primary aim was to assess transplantation of neurotrophic factor secreting cells derived from human adipose-derived stem cells (hADSCs) into the damaged spinal cord rats and determine the potential of these cells in remyelination...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28758287/electrophysiological-correlates-of-the-drift-diffusion-model-in-visual-word-recognition
#19
Christina J Mueller, Corey N White, Lars Kuchinke
This study was designed to explore the electrophysiological correlates of the diffusion models drift rate parameter in cognitive decision making. Eighty-two participants completed a lexical decision task while their stimulus-dependent event-related potentials (ERP) and theta frequency band power were measured. A mass univariate approach was applied to examine the timeline at which correlations were evident. Individual differences in drift rate parameter and condition-wise within-subject differences in drift rates for word emotionality and item repetition were found to be related to amplitude differences in the late positive complex (LPC)...
July 31, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28752209/plasma-lipidome-analysis-by-liquid-chromatography-high-resolution-mass-spectrometry-and-ion-mobility-of-hypertriglyceridemic-patients-on-extended-release-nicotinic-acid-a-pilot-study
#20
Véronique Ferchaud-Roucher, Mikaël Croyal, Thomas Moyon, Yassine Zair, Michel Krempf, Khadija Ouguerram
BACKGROUND: Plasma high triacylglycerols and low HDL-C concentration are associated with increased cardiovascular events. Extended-release nicotinic acid (ERN) was shown to reduce plasma triacylglycerols and total cholesterol but also to markedly increase high-density lipoprotein-cholesterol (HDL-C). No data on the effect of ERN on different species of triacylglycerol, cholesteryl ester, and phospholipids are available. In this study, we applied a nontargeted lipidomic approach to investigate the plasma and lipoproteins lipids profile of hypertriglyceridemic patients treated with ERN or a placebo in order to identify new lipids markers associated with this treatment...
July 28, 2017: Cardiovascular Drugs and Therapy
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