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https://www.readbyqxmd.com/read/28343061/automated-diabetic-macular-edema-dme-grading-system-using-dwt-dct-features-and-maculopathy-index
#1
U Rajendra Acharya, Muthu Rama Krishnan Mookiah, Joel E W Koh, Jen Hong Tan, Sulatha V Bhandary, A Krishna Rao, Yuki Hagiwara, Chua Kuang Chua, Augustinus Laude
The cause of diabetic macular edema (DME) is due to prolonged and uncontrolled diabetes mellitus (DM) which affects the vision of diabetic subjects. DME is graded based on the exudate location from the macula. It is clinically diagnosed using fundus images which is tedious and time-consuming. Regular eye screening and subsequent treatment may prevent the vision loss. Hence, in this work, a hybrid system based on Radon transform (RT), discrete wavelet transform (DWT) and discrete cosine transform (DCT) are proposed for an automated detection of DME...
March 19, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28340319/apigenin-reduces-nf-%C3%AE%C2%BAb-and-subsequent-cytokine-production-as-protective-effect-in-a-rodent-animal-model-of-lung-ischemia-reperfusion-injury
#2
Ioannis Bougioukas, Vassilios Didilis, Alexander Emmert, Ahmad F Jebran, Regina Waldmann-Beushausen, Tomislav Stojanovic, Friedrich A Schoendube, Bernhard C Danner
PURPOSE: Lung ischemia-reperfusion injury (LIRI) can complicate lung transplantation or cardiac surgery with cardiopulmonary bypass, increasing morbidity and mortality. In LIRI, pro-inflammatory cytokines are activated, reactive oxygen species are generated and nuclear factor-κB (NF-κB) is up-regulated, altering lung mechanics. We tested the effect of the flavonoid apigenin on a rodent model of LIRI. METHODS: Thirty-seven Wistar rats were subjected to LIRI with or without a single or double dose of apigenin...
March 24, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28340221/nationwide-multicentre-kidney-biopsy-study-of-japanese-patients-with-type-2-diabetes
#3
Kengo Furuichi, Yukio Yuzawa, Miho Shimizu, Akinori Hara, Tadashi Toyama, Hiroshi Kitamura, Yoshiki Suzuki, Hiroshi Sato, Noriko Uesugi, Yoshifumi Ubara, Satoshi Hisano, Yoshihiko Ueda, Shinichi Nishi, Hitoshi Yokoyama, Tomoya Nishino, Kentaro Kohagura, Daisuke Ogawa, Koki Mise, Yugo Shibagaki, Kenjiro Kimura, Masakazu Haneda, Hirofumi Makino, Seiichi Matsuo, Takashi Wada
Background.: The clinical and pathologic manifestations of nephropathy due to type 2 diabetes are diverse, but large-scale pathologic studies with long-term observations are limited. Methods.: Kidney biopsies and clinical data of 600 patients with type 2 diabetes were collected retrospectively from 13 centres across Japan. Thirteen pathologic findings (nine glomerular lesions, two interstitial lesions and two vascular lesions) were clearly defined and scored. Results...
March 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339044/suppression-of-nuclear-factor-erythroid%C3%A2-2%C3%A2-related-factor-2%C3%A2-mediated-antioxidative-defense-in-the-lung-injury-induced-by-chronic-exposure-to-methamphetamine-in-rats
#4
Yang Bai, Yun Wang, Ming Liu, Yu-Han Gu, Bin Jiang, Xu Wu, Huai-Liang Wang
The imbalance between oxidative stress and antioxidant defense is important in the pathogenesis of lung diseases. Nuclear factor erythroid‑2‑related factor 2 (Nrf2) is a key transcriptional factor that regulates the antioxidant response. The purpose of the present study was to investigate whether Nrf2‑mediated antioxidative defense is involved in methamphetamine (MA)‑induced lung injury in rats. Following establishment of chronic MA toxicity in rats, Doppler ultrasonic detection was used to measure the changes of physiological indexes, followed by hematoxylin and eosin staining, ELISA and western blot analysis...
March 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338964/relationship-between-fine-root-exudation-and-respiration-of-two-quercus-species-in-a-japanese-temperate-forest
#5
Lijuan Sun, Mioko Ataka, Yuji Kominami, Kenichi Yoshimura
Plants allocate a considerable amount of carbon (C) to fine roots as respiration and exudation. Fine-root exudation could stimulate microbial activity, which further contributes to soil heterotrophic respiration. Although both root respiration and exudation are important components of belowground C cycling, how they relate to each other is less well known. In this study, we aimed to explore this relationship on mature trees growing in the field. The measurements were performed on two canopy species, Quercus serrata Thunb...
March 17, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28337297/protective-effect-of-a-novel-antibody-against-tlr2-on-zymosan-induced-acute-peritonitis-in-nf-%C3%AE%C2%BAb-transgenic-mice
#6
Qingjun Pan, Jun Cai, Yanxia Peng, Haiyan Xiao, Lifang Zhang, Jinying Chen, Huafeng Liu
In addition to antibiotic therapy for treatment of peritonitis, biologics have also been found to exhibit both anti-inflammatory and inflammation-resolving properties. Here, we first developed NF-κB transgenic mice with zymosan-induced acute peritonitis to investigate the effects of a novel anti-Toll-like receptor (TLR)2 antibody (anti-T20). In this mouse model, anti-T20 treatment significantly attenuated the increase of peritoneal NF-κB activity and serum levels of inflammatory cytokines, including monocyte chemoattractant protein (MCP)-1, interleukin (IL)-6 and tumor necrosis factor (TNF)-α, in a dose-dependent manner compared to mice treated with isotype control antibody...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28336973/microbial-community-composition-is-related-to-soil-biological-and-chemical-properties-and-bacterial-wilt-outbreak
#7
Rui Wang, Hongchun Zhang, Liguang Sun, Gaofu Qi, Shu Chen, Xiuyun Zhao
Soil microbes play important roles in plant growth and health. Little is known about the differences of soil microbes between healthy and bacterial wilt infected soils with Ralstonia solanacearum. By Illumina-MiSeq sequencing of 16S rRNA and 18S rRNA gene amplicons, we found the soil microbial composition and diversity were distinct between healthy and bacterial wilt infected soils. Soil microbial community varied at different plant growth stages due to changes of root exudates composition and soil pH. Healthy soils exhibited higher microbial diversity than the bacterial wilt infected soils...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336128/retinal-pigment-epithelium-tears-classification-pathogenesis-predictors-and-management
#8
REVIEW
Mehmet Giray Ersoz, Murat Karacorlu, Serra Arf, Isil Sayman Muslubas, Mumin Hocaoglu
Various eye conditions cause tears in the retinal pigment epithelium (RPE). The most common cause of an RPE tear is vascularized retinal pigment epithelial detachment (PED) in patients with exudative age-related macular degeneration. Although RPE tears can develop spontaneously in vascularized PEDs, most recent cases have been associated with anti-vascular endothelial growth factor (VEGF) injections. The subretinal fluid within the PED applies hydrostatic pressure to the RPE and stretches it. The PED enlarges as the hydrostatic pressure increases...
March 20, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28334144/the-effects-of-plant-nutritional-strategy-on-soil-microbial-denitrification-activity-through-rhizosphere-primary-metabolites
#9
Julien P Guyonnet, Florian Vautrin, Guillaume Meiffren, Clément Labois, Amélie A M Cantarel, Serge Michalet, Gilles Comte, Feth El Zahar Haichar
The aim of this study was to determine (i) whether plant nutritional strategy affects the composition of primary metabolites exuded into the rhizosphere and (ii) their impact on denitrification activity in soil. We answer this question by analysing primary metabolite contents extracted from the root-adhering soil (RAS) and the roots of three grasses representing different nutrient management strategies: conservative (Festuca paniculata), intermediate (Bromus erectus) and exploitative (Dactylis glomerata). We also investigated the impact of primary metabolites on soil microbial denitrification enzyme activity (DEA) without carbon addition, comparing for each plant RAS and bulk soils...
February 18, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28333854/presumed-retinal-pigment-epithelium-tumor-originating-from-unilateral-retinal-pigment-epithelium-dysgenesis
#10
Orly Gal-Or, Paul T Finger, Yale L Fisher, Lawrence A Yannuzzi, K Bailey Freund
PURPOSE: To describe a patient with a presumed retinal pigment epithelium (RPE) tumor originating from unilateral RPE dysgenesis. METHODS: Case report. RESULTS: A 30-year-old woman with an unremarkable medical and ocular history was referred for an evaluation of progressive central metamorphopsia in her left eye. Visual acuity was 20/20 in her right eye and 20/25 in her left eye. Funduscopic examination of the left eye revealed an elevated mass within an area of unilateral RPE dysgenesis showing hyperpigmentation and hypopigmentation with scalloped margins...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28333395/small-molecules-belowground-the-role-of-specialized-metabolites-in-the-rhizosphere
#11
Hassan Massalha, Elisa Korenblum, Dorothea Tholl, Asaph Aharoni
Soil communities are diverse taxonomically and functionally. This ecosystem experiences highly complex networks of interactions, but may also present functionally independent entities. Plant roots, a metabolically active hotspot in the soil, take an essential part in belowground interactions. While plants are known to release an extremely high portion of the fixated carbon to the soil, less is known about the composition and role of C-containing compounds in the rhizosphere, in particular those involved in chemical communication...
March 23, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28332589/cell-cycle-arrest-and-biochemical-changes-accompanying-cell-death-in-harmful-dinoflagellates-following-exposure-to-bacterial-algicide-iri-160aa
#12
Kaytee L Pokrzywinski, Charles L Tilney, Mark E Warner, Kathryn J Coyne
Bacteria may play a role in regulating harmful algal blooms, but little is known about the biochemical and physiological changes associated with cell death induced by algicidal bacteria. Previous work characterized an algicidal exudate (IRI-160AA) produced by Shewanella sp. IRI-160 that is effective against dinoflagellates, while having little to no effect on other phytoplankton species in laboratory culture experiments. The objective of this study was to evaluate biochemical changes associated with cell death and impacts on the cell cycle in three dinoflagellate species (Prorocentrum minimum, Karlodinium veneficum and Gyrodinium instriatum) after exposure to IRI-160AA...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332056/allelopathic-interference-of-alfalfa-medicago-sativa-l-genotypes-to-annual-ryegrass-lolium-rigidum
#13
Hasan Muhammad Zubair, James E Pratley, G A Sandral, A Humphries
Alfalfa (Medicago sativa L.) genotypes at varying densities were investigated for allelopathic impact using annual ryegrass (Lolium rigidum) as the target species in a laboratory bioassay. Three densities (15, 30, and 50 seedlings/beaker) and 40 alfalfa genotypes were evaluated by the equal compartment agar method (ECAM). Alfalfa genotypes displayed a range of allelopathic interference in ryegrass seedlings, reducing root length from 5 to 65%. The growth of ryegrass decreased in response to increasing density of alfalfa seedlings...
March 22, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28331623/gum-arabic-as-novel-anti-oxidant-agent-in-sickle-cell-anemia-phase-ii-trial
#14
Lamis Kaddam, Imad Fadl-Elmula, Omer Ali Eisawi, Haydar Awad Abdelrazig, Mohammed Abdelraman Salih, Florian Lang, Amal M Saeed
BACKGROUND: Sickle cell anemia patients suffer from oxidative stress due to chronic inflammation and self-oxidation of sickle hemoglobin (Hb S). Chronic oxidative stress contributes to endothelial dysfunction, inflammation and multiple organ damage in sickle cell disease (SCD). Thus, antioxidant medication may favorably influence the disease. Gum Arabic (GA), edible, dried, gummy exudates from Acacia Senegal tree, has been claimed to act as an anti-oxidant and cytoprotective agent, protecting against experimental hepatic, renal and cardiac toxicities in rats...
2017: BMC Hematology
https://www.readbyqxmd.com/read/28330723/standardization-and-anti-inflammatory-activity-of-aqueous-extract-of-psittacanthus-plagiophyllus-eichl-loranthaceae
#15
Adrielle Nara Serra Bezerra, Laís Tatiele Massing, Ricardo Bezerra de Oliveira, Rosa Helena Veras Mourão
ETHNOPHARMACOLOGICAL IMPORTANCE: The hemiparasitic species Psittacanthus plagiophyllus Eichl. (Loranthaceae), also known as erva de passarinho, is used in folk medicine in the Santarém region in the state of Pará, Brazil, to treat gastritis and a variety of inflammatory disorders. In view of the lack of pharmacological studies on this species in the literature and the fact that it is used constantly by the local population, this study sought to standardize the extract of the leaves of P...
March 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28330678/acute-macular-edema-and-peripapillary-soft-exudate-after-pancreas-transplantation-with-accelerated-progression-of-diabetic-retinopathy
#16
Fang-Yi Tsai, Ling-Ing Lau, An-Fei Li, Shih-Jen Chen, Shin-E Wang, Fenq-Lih Lee, Catherine Jiu-Lin Liu, Yi-Ming Shyr
BACKGROUND: The effect of pancreas transplantation on diabetic retinopathy remains inconclusive. Herein, we report six patients with type 1 diabetes mellitus (DM) who underwent pancreas transplantation and developed acute macular edema and peripapillary soft exudate with rapid progression to proliferative diabetic retinopathy. METHODS: In this retrospective observational study, diabetic patients who underwent pancreas transplantation in a single medical center and developed symptomatic acute macular edema and peripapillary soft exudate within 3 months after the operation were enrolled...
March 18, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28330260/impact-of-forest-vegetation-on-soil-characteristics-a-correlation-between-soil-biological-and-physico-chemical-properties
#17
L R Chandra, S Gupta, V Pande, N Singh
Temperate and dry deciduous forest covers major portion of terrestrial ecosystem in India. The two forest types with different dominant tree species differ in litter quality and root exudates, thereby exerting species-specific impact on soil properties and microbial activity. This study aims to examine the influence of forest type or dominant tree species on soil physico-chemical properties and its relationship with microbial characters in temperate and dry deciduous forest types. We assessed soil physico-chemical properties among five different sites located within the selected forest stand covered by different dominant species...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28328847/effect-of-topical-isopropyl-unoprostone-on-macular-atrophy-progression-in-eyes-with-exudative-age-related-macular-degeneration
#18
Chieko Shiragami, Masahiro Miyake, Atsushi Fujiwara, Yuki Morizane, Akitaka Tsujikawa, Ayana Yamashita, Fumio Shiraga
BACKGROUND: To evaluate the efficacy and safety of topical isopropyl unoprostone (IU) in treating macular atrophy in age-related macular degeneration (AMD) patients. METHODS: Fifty-two AMD patients with macular atrophy were included and randomly assigned (1:1) to the treatment (topical 0.15% IU) or placebo group. Subjects used study eye drops 3 times a day for 54 weeks. The macular atrophy was documented on fundus autofluorescence photographs and measured using RegionFinder...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328600/management-of-pharyngocutaneous-fistula-with-negative-pressure-wound-therapy
#19
Sérgio Teixeira, Joana Costa, Isabel Bartosch, Bernardo Correia, Álvaro Silva
BACKGROUND: Pharyngocutaneous fistula is a common complication of laryngopharyngeal surgery and is associated with increased morbidity and mortality. Beyond the classical management, negative-pressure wound therapy (NPWT) can be an alternative and effective treatment. CLINICAL REPORT: Two patients with pT3N0M0 squamous cell carcinoma of pyriform sinus were subjected to total laryngectomy and pharyngoesophageal reconstruction of a circular (patient 1) and an anterior wall defect (patient 2) with radial forearm free flap and pectoralis major muscle flap, respectively...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28328528/ocimum-gratissimum-linn-leaf-extract-inhibits-free-radical-generation-and-suppressed-inflammation-in-carrageenan-induced-inflammation-models-in-rats
#20
Abayomi M Ajayi, Mary O Ologe, Benneth Ben-Azu, Samuel E Okhale, Bulus Adzu, Olusegun G Ademowo
BACKGROUND: Ocimum gratissimum leaf is used in managing rheumatism and other inflammatory conditions. In this study, we investigated the antioxidant and anti-inflammatory effects of phenolic extract obtained by sequential methanol extraction of O. gratissimum leaves (MEOg). METHODS: The methanol extract (MEOg) was obtained after sequential maceration (n-hexane, chloroform and methanol) of dried O. gratissimum leaves. The fingerprint of the extract was obtained using a high-performance liquid chromatrographic method...
March 22, 2017: Journal of Basic and Clinical Physiology and Pharmacology
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