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https://www.readbyqxmd.com/read/28633127/successful-endoscopic-treatment-of-gastric-phytobezoar-a-case-report
#1
Ippazio Ugenti, Elisabetta Travaglio, Elpiniki Lagouvardou, Onofrio Caputi Iambrenghi, Gennaro Martines
INTRODUCTION: Gastric bezoars are a rare condition associated with situations of gastric dysmotility and prior gastric surgery, though sometimes they can present without any risk factor. We describe the first successful treatment in medical literature of a large gastric bezoar in the outpatient setting through endoscopic fragmentation. CASE PRESENTATION: A 76-year-old man was referred to our outpatient endoscopy clinic because of dyspepsia and epigastric pain. Upper GI endoscopy with a standard endoscope revealed a 10-cm-diameter gastric phytobezoar with necrotic pressure ulcer of the angulus...
June 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28601663/temporal-patterns-of-phyto-and-bacterioplankton-and-their-relationships-with-environmental-factors-in-lake-taihu-china
#2
Xiaomei Su, Alan D Steinman, Qingju Xue, Yanyan Zhao, Xiangming Tang, Liqiang Xie
Phytoplankton and bacterioplankton are integral components of aquatic food webs and play essential roles in the structure and function of freshwater ecosystems. However, little is known about how phyto- and bacterioplankton may respond synchronously to changing environmental conditions. Thus, we analyzed simultaneously the composition and structure of phyto- and bacterioplankton on a monthly basis over 12 months in cyanobacteria-dominated areas of Lake Taihu and compared their responses to changes in environmental factors...
June 2, 2017: Chemosphere
https://www.readbyqxmd.com/read/28597158/fabrication-optimization-and-characterization-of-noble-silver-nanoparticles-from-sugarcane-leaf-saccharum-officinarum-extract-for-antifungal-application
#3
Manikandan Velu, Jeong-Ho Lee, Woo-Suk Chang, Nanh Lovanh, Yool-Jin Park, Palaniyappan Jayanthi, Velmurugan Palanivel, Byung-Taek Oh
Metal nanoparticles obtained from green route are gaining significant prominence as a result of their potential applications in nanomedicine and material engineering. Overall metal nanoparticles studied, silver nanoparticles (AgNPs) clutch prominent place in nanoparticles research field. Herein, we have reported the green synthesis of Saccharum officinarum leaf biomass extract-mediated synthesis of AgNPs. Initial nanoparticle production was confirmed by visual observation as color change from light yellow to bright brown color with yellow shade and spectrophotometrically at 450 nm and the various reaction conditions were optimized...
June 2017: 3 Biotech
https://www.readbyqxmd.com/read/28593195/lake-bacterial-assemblage-composition-is-sensitive-to-biological-disturbance-caused-by-an-invasive-filter-feeder
#4
Vincent J Denef, Hunter J Carrick, Joann Cavaletto, Edna Chiang, Thomas H Johengen, Henry A Vanderploeg
One approach to improve forecasts of how global change will affect ecosystem processes is to better understand how anthropogenic disturbances alter bacterial assemblages that drive biogeochemical cycles. Species invasions are important contributors to global change, but their impacts on bacterial community ecology are rarely investigated. Here, we studied direct impacts of invasive dreissenid mussels (IDMs), one of many invasive filter feeders, on freshwater lake bacterioplankton. We demonstrated that direct effects of IDMs reduced bacterial abundance and altered assemblage composition by preferentially removing larger and particle-associated bacteria...
May 2017: MSphere
https://www.readbyqxmd.com/read/28588492/cytotoxic-and-enzyme-inhibitory-potential-of-two-potentilla-species-p-speciosa-l-and-p-reptans-willd-and-their-chemical-composition
#5
Sengul Uysal, Gokhan Zengin, Marcello Locatelli, Mir B Bahadori, Andrei Mocan, Giuseppe Bellagamba, Elisa De Luca, Adriano Mollica, Abdurrahman Aktumsek
In this work, the biological and chemical fingerprints of three extracts (ethyl acetate, methanol, and water) from two Potentilla species (Potentilla reptans and P. speciosa) were investigated. Antioxidant, enzyme inhibitory, and cytotoxic activities were performed for the biological fingerprint. For the chemical characterization, total bioactive components, and individual phenolic components were determined using photometric and HPLC methods, respectively. The main identified phenolic compounds in these extracts were rutin and catechin...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28584490/chromatographic-isolation-and-spectroscopic-identification-of-phytoconstituents-of-jujuba-seeds-zizyphus-jujuba-mill
#6
Md Manowwar Alam, Abuzer Ali, Mohammad Ali, Showkat R Mir
BACKGROUND: The seeds of Zizyphus jujuba Mill. (Rhamnaceae) are astringent, aphrodisiac, tonic; used to cure cough, asthma, vomiting, burning sensation, biliousness, leucorrhoea, and eye infections in traditional systems of medicine. MATERIALS AND METHODS: The methanol extract of seeds of Z. jujuba was partitioned into petroleum ether and water soluble fractions. Isolation of compounds was performed by silica gel column chromatography. The structures of isolated compounds were established on the basis of spectral studies and chemical reactions...
January 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/28573560/phyto-management-of-cr-contaminated-soils-by-sunflower-hybrids-physiological-and-biochemical-response-and-metal-extractability-under-cr-stress
#7
Mujahid Farid, Shafaqat Ali, Nudrat Aisha Akram, Muhammad Rizwan, Farhat Abbas, Syed Asad Hussain Bukhari, Rashid Saeed
Chromium (Cr) is a biologically non-essential, carcinogenic and toxic heavy metal. The cultivation of Cr-tolerant genotypes seems the most favorable and environment friendly strategy for rehabilitation and remediation of Cr-contaminated soils. To prove this hypothesis and identify the Cr tolerance, the present study was performed to assess the physiological and biochemical response of sunflower genotypes to Cr stress. The seeds of six sunflower hybrids, namely FH-425, FH-600, FH-612, FH-614, FH-619, and FH-620, were grown in spiked soil for 12 weeks under increasing concentrations of Cr (0, 5, 10, and 20 mg kg(-1))...
June 1, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28570910/the-impact-of-anticancer-activity-upon-beta-vulgaris-extract-mediated-biosynthesized-silver-nanoparticles-ag-nps-against-human-breast-mcf-7-lung-a549-and-pharynx-hep-2-cancer-cell-lines
#8
K Venugopal, H Ahmad, E Manikandan, K Thanigai Arul, K Kavitha, M K Moodley, K Rajagopal, R Balabhaskar, M Bhaskar
The present study tried for a phyto-synthetic method of producing silver nanoparticles (Ag-NPs) with size controlled as and eco-friendly route that can lead to their advanced production with decorative tranquil morphology. By inducing temperature fluctuation of the reaction mixture from 25 to 80°C the plasmon resonance band raised slowly which had an ultimate effect on size and shape of Ag-NPs as shown by UV-visible spectroscopy and TEM results. The biosynthesized nanoparticles showed good cytotoxic impact against MCF-7, A549 and Hep2 cells compared to normal cell lines...
May 24, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28560496/evaluation-of-ecotoxicological-impact-of-new-pyrrole-derived-aminophosphonates-using-selected-bioassay-battery
#9
Jarosław Lewkowski, Marta Morawska, Rafał Karpowicz, Piotr Rychter, Diana Rogacz, Kamila Lewicka, Piotr Dobrzyński
Six new dimethyl N-arylamino(2-pyrrolyl)methylphosphonates 2a-f were synthesized by the modified aza-Pudovik reaction. Their ecotoxicological impact using battery of bioassay was assessed using Microtox and Ostracodtoxit tests as well as phytotoxicity towards two plants, dicotyledonous radish (Raphanus sativus) and monocotyledonous oat (Avena sativa) following the OECD 208 Guideline. Ecotoxicological properties of compounds 2a-f in aspect of acute and chronic toxicity were evaluated using Heterocypris incongruens and Aliivibrio fisheri tests...
May 30, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28547211/sheldon-spectrum-and-the-plankton-paradox-two-sides-of-the-same-coin-a-trait-based-plankton-size-spectrum-model
#10
José A Cuesta, Gustav W Delius, Richard Law
The Sheldon spectrum describes a remarkable regularity in aquatic ecosystems: the biomass density as a function of logarithmic body mass is approximately constant over many orders of magnitude. While size-spectrum models have explained this phenomenon for assemblages of multicellular organisms, this paper introduces a species-resolved size-spectrum model to explain the phenomenon in unicellular plankton. A Sheldon spectrum spanning the cell-size range of unicellular plankton necessarily consists of a large number of coexisting species covering a wide range of characteristic sizes...
May 25, 2017: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/28539055/phytochemical-screening-antioxidant-activity-total-phenolic-and-total-flavonoid-contents-of-seven-local-varieties-of-rosa-indica-l
#11
Kiran Zahid, Maqsood Ahmed, Farah Khan
Rosa indica symbol of godness and beauty known for various healing power, has astringent, sedative, anti-inflammatory and antidepressant qualities. Standard methods were used for qualitative detection of phyto-compounds, and quantitative detection of antioxidants was done using DPPH radical scavenging assay, total phenolics and total flavonoids content were expressed in mg GAE/g dry weight and mg QE/g dry weight. Results revealed phyto-compounds presence in all varieties under study however maximum % inhibition was observed by R...
May 25, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28530200/antioxidant-antibacterial-and-anticancer-properties-of-phyto-synthesised-artemisia-quttensis-podlech-extract-mediated-agnps
#12
Farinaz Ghanbar, Amir Mirzaie, Fatemeh Ashrafi, Hassan Noorbazargan, Mojgan Dalirsaber Jalali, Soheil Salehi, Seyed Ataollah Sadat Shandiz
The focus of this study is on a rapid and cost-effective approach for the synthesis of silver nanoparticles (AgNPs) using Artemisia quttensis Podlech aerial parts extract and assessment of their antioxidant, antibacterial and anticancer activities. The prepared AgNPs were determined by ultraviolet-visible spectroscopy, X-ray diffraction, Fourier transform infra-red spectroscopy, transmission electron microscopy, scanning electron microscopy, energy-dispersive spectroscopy, and dynamic light scattering and zeta-potential analysis...
June 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28530186/synthesis-and-characterisation-of-neem-leaf-extract-2-3-dehydrosalanol-and-quercetin-dihydrate-mediated-silver-nano-particles-for-therapeutic-applications
#13
Bodaballa Avinash, Ravipati Venu, Tollamadugu N V K V Prasad, Mekapogu Alpha Raj, Kothapalli Srinivasa Rao, Chintamaneni Srilatha
The utility of green silver nanoparticles (AgNPs) in veterinary medicine is steadily increasing as they have many therapeutic applications against pathogens and arthropods of livestock. In this study, green AgNPs using neem (N-AgNPs), 2,3-dehydrosalanol (2,3-DHS-AgNPs) and quercetin dihydrate (QDH-AgNPs) were synthesised and characterised. Synthesised compounds were characterised by UV-Vis spectroscopy and the peak absorbance was recorded at 370 nm for neem extract. For N-AgNPs, 2,3-DHS-AgNPs and QDH-AgNPs, the maximum absorbance peaks were at 430, 230 and 220 nm, respectively...
June 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28523367/-a-67-year-old-man-with-epigastric-pain
#14
A Greger, W Hamelmann, M Konermann
A 67-year-old man suffering from epigastric pain showed a phytobezoar in the endoscopy. Therapy with Coca Cola® and enzymes was initiated. The (partial) lysis led to a migration of the bezoar into the ileum, resulting in a small bowel obstruction. After removal of the remaining bezoar via ileotomy a secondary pneumatosis intestinalis occurred. As a rare finding the (phyto-)bezoar should be considered as a differential diagnosis of abdominal pain - especially considering the rising numbers of bariatric surgery, which is a potential risk factor...
May 18, 2017: Der Internist
https://www.readbyqxmd.com/read/28512279/antimicrobial-potential-of-plant-extracts-and-chemical-fractions-of-sideroxylon-obtusifolium-roem-schult-t-d-penn-on-oral-microorganisms
#15
Thaíse Pd Sampaio, Nathália Ao Cartaxo-Furtado, Ana Cd de Medeiros, Harley S Alves, Pedro L Rosalen, Jozinete V Pereira
AIM: The aim of this study is to evaluate the in vitro antimicrobial activity of plant extracts and chemical fractions of Sideroxylon obtusifolium T.D. Penn on Streptococcus mutans, Streptococcus oralis, Streptococcus salivarius, Streptococcus parasanguinis, and Candida albicans as well as to identify the chemical classes found in the bioactive extracts possessing better activity. MATERIALS AND METHODS: Freeze-dried hydroalcoholic extracts of the bark and leaves (LC and LF respectively) and ethanol extracts of bark and leaves (EC and EF respectively) of S...
May 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28467815/epigenetic-silencing-of-triple-negative-breast-cancer-hallmarks-by-withaferin-a
#16
Katarzyna Szarc Vel Szic, Ken Declerck, René A J Crans, Jolien Diddens, David B Scherf, Clarissa Gerhäuser, Wim Vanden Berghe
Triple negative breast cancer (TNBC) is characterized by poor prognosis and a DNA hypomethylation profile. Withaferin A (WA) is a plant derived steroidal lactone which holds promise as a therapeutic agent for treatment of breast cancer (BC). We determined genome-wide DNA methylation changes in weakly-metastatic and aggressive, metastatic BC cell lines, following 72h treatment to a sub-cytotoxic concentration of WA. In contrast to the DNA demethylating agent 5-aza-2'-deoxycytidine (DAC), WA treatment of MDA-MB-231 cells rather tackles an epigenetic cancer network through gene-specific DNA hypermethylation of tumor promoting genes including ADAM metallopeptidase domain 8 (ADAM8), urokinase-type plasminogen activator (PLAU), tumor necrosis factor (ligand) superfamily, member 12 (TNFSF12), and genes related to detoxification (glutathione S-transferase mu 1, GSTM1), or mitochondrial metabolism (malic enzyme 3, ME3)...
June 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28462147/in-vitro-antioxidant-and-anticancer-activity-of-leea-indica-leaf-extracts-on-human-prostate-cancer-cell-lines
#17
REVIEW
Shridhar C Ghagane, Sridevi I Puranik, Vijay M Kumbar, Rajendra B Nerli, Sunil S Jalalpure, Murigendra B Hiremath, Shivayogeeswar Neelagund, Ravindranath Aladakatti
BACKGROUND: To determine the phytochemical constituents, antioxidant, and anticancer activities of Leea indica leaf extracts on DU-145 and PC-3 human prostate cancer cell lines. METHODS: Leaf sample was subjected to Soxhlet extraction method with increasing polarity of solvents, namely, chloroform, ethyl acetate, methanol, ethanol, and aqueous. Phytochemical screening was done using different biochemical tests. Quantitative analysis for phenol was determined by Folin-Ciocalteu reagent method...
March 2017: Integrative medicine research
https://www.readbyqxmd.com/read/28458659/biosynthesis-of-silver-nanoparticles-from-protium-serratum-and-investigation-of-their-potential-impacts-on-food-safety-and-control
#18
Yugal K Mohanta, Sujogya K Panda, Akshaya K Bastia, Tapan K Mohanta
Silver nanoparticles play an integral part in the evolution of new antimicrobials against the broad ranges of pathogenic microorganisms. Recently, biological synthesis of metal nanoparticles using plant extracts has been successfully consummated. In the present study, the biosynthesis of silver nanoparticles (AgNPs) was conducted using the leaf extract of plant Protium serratum, having novel ethnomedicinal. The synthesized AgNPs were characterized using UV-Visible spectroscopy, dynamic light scattering spectroscopy (DLS), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28444474/compost-and-sulfur-affect-the-mobilization-and-phyto-availability-of-cd-and-ni-to-sorghum-and-barnyard-grass-in-a-spiked-fluvial-soil
#19
Sabry M Shaheen, Ali A Balbaa, Alaa M Khatab, Jörg Rinklebe
Soil reclamation via additives can cause contradictory effects on the mobilization of toxic elements in soils under dry and wet conditions. Therefore, our aim was to investigate the impact of compost and sulfur in two rates (1.25 and 2.5%) on fractionation, mobilization, and phyto-availability of cadmium (Cd) and nickel (Ni) to sorghum (dry soil) and barnyard grass (wet soil) in a fluvial soil spiked with 25 mg Cd or 200 mg Ni/kg soil. Compost decreased the solubility and mobilization of Cd (especially in dry soil) and Ni (in both soils)...
April 25, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28437746/catalytic-reduction-of-4-nitrophenol-and-photo-inhibition-of-pseudomonas-aeruginosa-using-gold-nanoparticles-as-photocatalyst
#20
Shafiullah Khan, Wang Runguo, Kamran Tahir, Zhang Jichuan, Liqun Zhang
A simple, green method is described for the synthesis of Gold (Au) nanoparticles (NPs) using Cotoneaster horizontalis extract as a phyto-reducer and capping agent with superior photo inhibition activity against Pseudomonas aeruginosa. Different from the other methods used elevated temperatures for nanoparticles synthesis, the novelty of our method lies in its energy saving process and fast synthesis rates (~5min for AuNPs), and its potential to tune the nanoparticles size and afterward their catalytic activity...
May 2017: Journal of Photochemistry and Photobiology. B, Biology
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