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https://www.readbyqxmd.com/read/28213142/extraction-preparation-and-application-of-pigments-from-cordyline-fruticosa-and-hylocereus-polyrhizus-as-sensitizers-for-dye-sensitized-solar-cells
#1
Mahmoud A M Al-Alwani, Norasikin A Ludin, Abu Bakar Mohamad, Abd Amir H Kadhum, Kamaruzzaman Sopian
Current study employs mixture of chlorophyll-anthocyanin dye extracted from leaves of Cordyline fruticosa as new sensitizers for dye-sensitized solar cell (DSSCs), as well as betalains dye obtained from fruit of Hylocereus polyrhizus. Among ten pigments solvents, the ethanol and methanol extracts revealed higher absorption spectra of pigments extracted from C. fruticosa and H. polyrhizus respectively. A major effect of temperature increase was studied to increase the extraction yield. The results indicated that extraction temperature between 70 and 80°C exhibited a high dye concentration of each plant than other temperatures...
February 14, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28212047/multimaterial-decomposition-algorithm-for-the-quantification-of-liver-fat-content-by-using-fast-kilovolt-peak-switching-dual-energy-ct-clinical-evaluation
#2
Tomoko Hyodo, Norihisa Yada, Masatoshi Hori, Osamu Maenishi, Peter Lamb, Kosuke Sasaki, Minori Onoda, Masatoshi Kudo, Teruhito Mochizuki, Takamichi Murakami
Purpose To assess the clinical accuracy and reproducibility of liver fat quantification with the multimaterial decomposition (MMD) algorithm, comparing the performance of MMD with that of magnetic resonance (MR) spectroscopy by using liver biopsy as the reference standard. Materials and Methods This prospective study was approved by the institutional ethics committee, and patients provided written informed consent. Thirty-three patients suspected of having hepatic steatosis underwent non-contrast material-enhanced and triple-phase dynamic contrast-enhanced dual-energy computed tomography (CT) (80 and 140 kVp) and single-voxel proton MR spectroscopy within 30 days before liver biopsy...
February 17, 2017: Radiology
https://www.readbyqxmd.com/read/28211919/high-performance-regular-perovskite-solar-cells-employing-low-cost-poly-ethylenedioxythiophene-as-a-hole-transporting-material
#3
Xiaoqing Jiang, Ze Yu, Yuchen Zhang, Jianbo Lai, Jiajia Li, Gagik G Gurzadyan, Xichuan Yang, Licheng Sun
Herein, we successfully applied a facile in-situ solid-state synthesis of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) as a HTM, directly on top of the perovskite layer, in conventional mesoscopic perovskite solar cells (PSCs) (n-i-p structure). The fabrication of the PEDOT film only involved a very simple in-situ solid-state polymerisation step from a monomer 2,5-dibromo-3,4-ethylenedioxythiophene (DBEDOT) made from a commercially available and cheap starting material. The ultraviolet photoelectron spectroscopy (UPS) demonstrated that the as-prepared PEDOT film possesses the highest occupied molecular orbital (HOMO) energy level of -5...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210364/caudal-edge-of-the-liver-in-the-right-upper-quadrant-ruq-view-is-the-most-sensitive-area-for-free-fluid-on-the-fast-exam
#4
Viveta Lobo, Michelle Hunter-Behrend, Erin Cullnan, Rebecca Higbee, Caleb Phillips, Sarah Williams, Philips Perera, Laleh Gharahbaghian
INTRODUCTION: The focused assessment with sonography in trauma (FAST) exam is a critical diagnostic test for intraperitoneal free fluid (FF). Current teaching is that fluid accumulates first in Morison's pouch. The goal of this study was to evaluate the "sub-quadrants" of traditional FAST views to determine the most sensitive areas for FF accumulation. METHODS: We analyzed a retrospective cohort of all adult trauma patients who had a recorded FAST exam by emergency physicians at a Level I trauma center from January 2012 - June 2013...
February 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28205530/retinal-structure-and-function-in-eyes-with-optic-nerve-hypoplasia
#5
Satoshi Katagiri, Sachiko Nishina, Tadashi Yokoi, Masashi Mikami, Yuri Nakayama, Michiko Tanaka, Noriyuki Azuma
We investigated retinal structure and function in eyes with optic nerve hypoplasia (ONH). Twenty-nine eyes of 18 patients with ONH and 21 eyes of 21 control patients were analyzed. Spectral-domain optical coherence tomography (SD-OCT), full-field electroretinography (FF-ERG), and focal macular ERG (FM-ERG) were performed. SD-OCT analysis of the macular region showed significant ganglion cells complex (GCC) thinning nasally and temporally (P < 0.05), but the thickness from the inner nuclear layer (INL) to the retinal pigment epithelium (RPE) became thinner only nasally (P < 0...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28203024/-significance-of-renal-filtration-fraction-evaluation-of-renal-artery-stenting-for-atherosclerotic-renal-artery-stenosis-treatment
#6
Q C Feng, X Li, J Y Luan, C M Wang, T R Li
OBJECTIVE: To investigate the significance of filtration fraction (FF) and renal artery stenting in the treatment of atherosclerotic renal artery stenosis. METHODS: In the study, 42 cases of renal artery stenosis were treated with 52 renal artery stent implantation. Percutaneous transluminal renal angioplasty and stent (PTRAS) of the patients' health side kidney, ipsilateral kidney (renal) glomerular filtration rate (GFR), renal effective renal plasma flow effective renal plasma flow (ERPF), kidney filtration fraction changes of preoperative and postoperative serum creatinine (SCR) and the changes in the patients with blood pressure (SBP) and the changes after taking antihypertensive drugs were observed and analyzed...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28202253/flap-fixation-using-tissue-glue-or-sutures-appears-to-reduce-seroma-aspiration-after-mastectomy-for-breast-cancer
#7
James van Bastelaar, Lotte L B Theunissen, Maarten G J Snoeijs, Geerard L Beets, Yvonne L J Vissers
BACKGROUND: Up to 90% of patients undergoing breast cancer surgery suffer from seroma formation, which can cause discomfort and various complications after mastectomy. This retrospective observational cohort study aimed to elucidate whether flap fixation with fibrin sealant (ARTISS) tissue glue reduces seroma formation and seroma aspiration after mastectomy when compared with flap fixation using Vicryl sutures and when compared with a conventional wound closure technique. METHODS: All patients undergoing mastectomy due to invasive breast cancer or ductal carcinoma in situ were eligible for inclusion...
January 24, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28198173/delphi-based-study-and-analysis-of-key-risk-factors-for-invasive-fungal-infection-in-haematological-patients
#8
L Vázquez, M Salavert, J Gayoso, M Lizasoaín, I Ruiz Camps, N Di Benedetto
OBJECTIVE: Mortality caused by invasive fungal infections due to filamentous fungi (IFI-FF) is high. Predisposing factors to IFI-FF are multiple and should be stratified. The objective of this study was to identify key risk factors for IFI-FF in onco-haematological patients in different clinical settings. METHODS: Prospective national Delphi study. Risk factors for IFI-FF in patients with onco-haematological diseases were identified by a systematic review of the literature...
February 14, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28197932/effect-of-gnrha-ovulation-trigger-dose-on-follicular-fluid-characteristics-and-granulosa-cell-gene-expression-profiles
#9
Thi Ngoc Lan Vuong, M T Ho, T Q Ha, M Brehm Jensen, C Yding Andersen, P Humaidan
PURPOSE: A recent dose-finding study showed no significant differences in number of mature oocytes, embryos and top-quality embryos when triptorelin doses of 0.2, 0.3 or 0.4 mg were used to trigger final oocyte maturation in oocyte donors co-treated with a gonadotropin-releasing hormone (GnRH) antagonist. This analysis investigated whether triptorelin dosing for triggering final oocyte maturation in oocyte donors induced differences in follicular fluid (FF) hormone levels and granulosa cell gene expression...
February 14, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28196109/associations-between-pon1-enzyme-activities-in-human-ovarian-follicular-fluid-and-serum-specimens
#10
Keewan Kim, Michael S Bloom, Victor Y Fujimoto, Richard W Browne
The importance of high-density lipoprotein (HDL) particle components to reproduction is increasingly recognized, including the constituent paraoxonase 1 (PON1). However, the reliability characteristics of PON1 enzymes in ovarian follicular fluid (FF) as biomarkers for clinical and epidemiologic studies have not been described. Therefore, we characterized PON1 enzymes in FF and serum and assessed the impact of the PON1 Q192R polymorphism on associations between enzyme activities in two compartments. We also evaluated associations between HDL particle size and enzyme activities...
2017: PloS One
https://www.readbyqxmd.com/read/28195297/efficient-planar-n-i-p-type-heterojunction-flexible-perovskite-solar-cells-with-sputtered-tio2-electron-transporting-layers
#11
Sawanta S Mali, Chang Kook Hong, A I Inamdar, Hyunsik Im, Sang Eun Shim
The development of hybrid organo-lead trihalide perovskite solar cells (PSCs) comprising an electron transporting layer (ETL), a perovskite light absorber and a hole transporting layer (HTL) has received significant attention for their potential in efficient PSCs. However, the preparation of a compact and uniform ETL and the formation of a uniform light absorber layer suffer from a high temperature processing treatment and the formation of unwanted perovskite islands, respectively. A low temperature/room temperature processed ETL is one of the best options for the fabrication of flexible PSCs...
February 14, 2017: Nanoscale
https://www.readbyqxmd.com/read/28193546/contribution-of-guanine-nucleotide-exchange-factor-vav2-to-nlrp3-inflammasome-activation-in-mouse-podocytes-during-hyperhomocysteinemia
#12
Sabena M Conley, Justine M Abais-Battad, Xinxu Yuan, Qinghua Zhang, Krishna M Boini, Pin-Lan Li
NADPH oxidase (NOX)-derived reactive oxygen species (ROS) have been demonstrated to mediate the activation of NOD-like receptor protein 3 (NLRP3) inflammasomes in podocytes in response to elevated levels of homocysteine (Hcys). However, it remains unknown how NLRP3 inflammasome activation is triggered by NOX. The present study tested whether the guanine nucleotide exchange factor Vav2 mediates Rac1-mediated NOX activation in response to elevated Hcys leading to NLRP3 inflammasome activation in podocytes and consequent glomerular injury...
February 10, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28192441/cyclic-amp-regulates-postnatal-development-of-neural-and-behavioral-responses-to-nacl-in-rats
#13
Jie Qian, Shobha Mummalaneni, Tam-Hao T Phan, Gerard L Heck, John A DeSimone, David West, Sunila Mahavadi, Deanna Hojati, Karnam S Murthy, Mee-Ra Rhyu, Andrew I Spielman, Mehmet Hakan Özdener, Vijay Lyall
During postnatal development rats demonstrate an age-dependent increase in NaCl chorda tympani (CT) responses and the number of functional apical amiloride-sensitive epithelial Na+ channels (ENaCs) in salt sensing fungiform (FF) taste receptor cells (TRCs). Currently, the intracellular signals that regulate the postnatal development of salt taste have not been identified. We investigated the effect of cAMP, a downstream signal for arginine vasopressin (AVP) action, on the postnatal development of NaCl responses in 19-23 day old rats...
2017: PloS One
https://www.readbyqxmd.com/read/28191026/supplementation-with-dairy-calcium-and-or-flaxseed-fibers-in-conjunction-with-orlistat-augments-fecal-fat-excretion-without-altering-ratings-of-gastrointestinal-comfort
#14
Mette Kristensen, Signe Rømer Juul, Karina Vejrum Sørensen, Janne Kunchel Lorenzen, Arne Astrup
BACKGROUND: Orlistat is a lipase inhibitor which reduced absorption of dietary fat by ~30% thereby inducing a weight loss; however, side effects occur as a consequence of increased colonic fat content. To test the hypothesis that most gastrointestinal side events induced by treatment with orlistat could be prevented/ameliorated by concomitant use of natural dietary components, flaxseed fiber (FF) and/or dairy calcium (Ca), binding liquid fats to more solid complexes. METHODS: A randomized controlled dietary intervention study...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28190836/specificity-of-microrna-detection-on-a-power-free-microfluidic-chip-with-laminar-flow-assisted-dendritic-amplification
#15
Kazuki Hasegawa, Rina Negishi, Mutsuyoshi Matsumoto, Masafumi Yohda, Kazuo Hosokawa, Mizuo Maeda
MicroRNAs (miRNAs) are attracting considerable attention as potential biomarkers for the early diagnosis of cancer. We have been developing a detection method for miRNAs on a microfluidic chip with external-power-free fluid pumping and enzyme-free amplification. The assay is completed within 20 min. Here, we describe the specificity of this miRNA detection method. First, the specificity against mismatched sequences was investigated. The nonspecific detection of a 2-nucleotide mismatched sequence was negligible, while that of a 1-nucleotide mismatched sequence was observed to a reasonable extent...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28188594/extracellular-micrornas-in-follicular-fluid-and-their-potential-association-with-oocyte-fertilization-and-embryo-quality-an-exploratory-study
#16
Ronit Machtinger, Rodosthenis S Rodosthenous, Michal Adir, Abdallah Mansour, Catherine Racowsky, Andrea A Baccarelli, Russ Hauser
PURPOSE: The purpose of this study is to determine the profile of extracellular microRNAs (exmiRNAs) in follicular fluid (FF) and explore their association with fertilization potential and embryo quality. METHODS: We collected FF from single follicles containing mature oocytes from 40 women undergoing IVF and we screened for the expression of 754 exmiRNAs in FF using the TaqMan OpenArray® qPCR platform. To determine the association of exmiRNAs and IVF outcomes, we compared their expression levels in FF samples that differ by fertilization status (normally, abnormally, and failed to fertilize) and embryo quality (top vs...
February 10, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28188108/magnetic-resonance-spectroscopy-detected-change-in-marrow-adiposity-is-strongly-correlated-to-postmenopausal-breast-cancer-risk
#17
Guanwu Li, Zheng Xu, Alex Zhuang, Shixin Chang, Lingmi Hou, Yongsheng Chen, Maki Polat, Dongmei Wu
PURPOSE: To determine whether marrow fat fraction (FF) is correlated with postmenopausal breast cancer risk and clinicopathological characteristics of breast cancer. METHODS: Fifty-six patients with newly diagnosed and histologically confirmed postmenopausal breast cancer and 56 healthy controls underwent serologic test and magnetic resonance spectroscopy-based FF measurements. Data were analyzed by logistic multivariate regression models to determine the independent predictors of breast cancer risk and clinicopathological characters of breast cancer...
January 18, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28187394/nano-on-micro-fibrous-extracellular-matrices-for-scalable-expansion-of-human-es-ips-cells
#18
Li Liu, Ken-Ichiro Kamei, Momoko Yoshioka, Minako Nakajima, Junjun Li, Nanae Fujimoto, Shiho Terada, Yumie Tokunaga, Yoshie Koyama, Hideki Sato, Kouichi Hasegawa, Norio Nakatsuji, Yong Chen
Human pluripotent stem cells (hPSCs) hold great potential for industrial and clinical applications. Clinical-grade scaffolds and high-quality hPSCs are required for cell expansion as well as easy handling and manipulation of the products. Current hPSC culture methods do not fulfill these requirements because of a lack of proper extracellular matrices (ECMs) and cell culture wares. We developed a layered nano-on-micro fibrous cellular matrix mimicking ECM, named "fiber-on-fiber (FF)" matrix, which enables easy handling and manipulation of cultured cells...
February 2, 2017: Biomaterials
https://www.readbyqxmd.com/read/28186814/optimum-mixed-state-discrimination-for-noisy-entanglement-enhanced-sensing
#19
Quntao Zhuang, Zheshen Zhang, Jeffrey H Shapiro
Quantum metrology utilizes nonclassical resources, such as entanglement or squeezed light, to realize sensors whose performance exceeds that afforded by classical-state systems. Environmental loss and noise, however, easily destroy nonclassical resources and, thus, nullify the performance advantages of most quantum-enhanced sensors. Quantum illumination (QI) is different. It is a robust entanglement-enhanced sensing scheme whose 6 dB performance advantage over a coherent-state sensor of the same average transmitted photon number survives the initial entanglement's eradication by loss and noise...
January 27, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28186460/vitamin-d-receptor-gene-polymorphisms-metabolic-syndrome-and-type-2-diabetes-in-iranian-subjects-no-association-with-observed-snps
#20
Sakineh Shab-Bidar, Tirang R Neyestani, Abolghassem Djazayery
OBJECTIVE: This study aimed to investigate the associations between metabolic syndrome and type 2 diabetes and the presence of single nucleotide polymorphism of the vitamin D receptor gene in Iranian subjects with type 2 diabetes. SUBJECTS AND METHODS: Overall, 730 Iranian subjects (372 patients and 358 controls) were enrolled in this case-control study. Single nucleotide polymorphisms of the vitamin D receptor gene (FokI, BsmI, ApaI, and TaqI) were genotyped using the restriction fragment length polymorphism method...
February 10, 2017: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
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