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https://www.readbyqxmd.com/read/28528789/mixed-culture-h2-fermentation-performance-and-the-relation-between-microbial-community-composition-and-hydraulic-retention-times-for-a-fixed-bed-reactor-fed-with-galactose-glucose-mixtures
#1
Parthiban Anburajan, Jong-Hun Park, Periyasamy Sivagurunathan, Arivalagan Pugazhendhi, Gopalakrishnan Kumar, Chang-Su Choi, Sang-Hyoun Kim
This study examined the mesophilic continuous biohydrogen fermentation from galactose and glucose mixture with an initial substrate concentration of 15 g/L (galactose 12 g/L and glucose 3 g/L) as a resembling carbon source of pretreated red algal hydrolyzate. A fixed bed reactor was fed with the sugar mixture at various hydraulic retention times (HRTs) ranging 12 to 1.5 h. The maximum hydrogen production rate of 52.6 L/L-d was found at 2 h HRT, while the maximum hydrogen yield of 2.3±0.1 mol/mol hexoseadded, was achieved at 3 h HRT...
May 18, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28528377/correlation-between-corneal-innervation-and-inflammation-evaluated-with-confocal-microscopy-and-symptomatology-in-patients-with-dry-eye-syndromes-a-preliminary-study
#2
Tudor C Tepelus, Gloria B Chiu, Jianyan Huang, Ping Huang, SriniVas R Sadda, John Irvine, Olivia L Lee
PURPOSE: To evaluate corneal innervation and inflammatory cell infiltration using in vivo confocal microscopy (IVCM) and to correlate these findings with subjective symptoms of dry eye, as measured by the Ocular Surface Disease Index (OSDI) in patients with non-Sjögren's (NSDE) and Sjögren's syndrome dry eyes (SSDE). METHODS: Central corneal images were prospectively captured from 10 age-matched healthy control eyes, 24 eyes with clinically diagnosed NSDE and 44 eyes with clinically diagnosed SSDE, using IVCM (HRT III RCM)...
May 20, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28523011/the-effects-of-herbicides-targeting-aromatic-and-branched-chain-amino-acid-biosynthesis-support-the-presence-of-functional-pathways-in-broomrape
#3
Evgenia Dor, Shmuel Galili, Evgeny Smirnov, Yael Hacham, Rachel Amir, Joseph Hershenhorn
It is not clear why herbicides targeting aromatic and branched-chain amino acid biosynthesis successfully control broomrapes-obligate parasitic plants that obtain all of their nutritional requirements, including amino acids, from the host. Our objective was to reveal the mode of action of imazapic and glyphosate in controlling the broomrape Phelipanche aegyptiaca and clarify if this obligatory parasite has its own machinery for the amino acids biosynthesis. P. aegyptiaca callus was studied to exclude the indirect influence of the herbicides on the parasite through the host plant...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28521163/application-for-oxytetracycline-wastewater-pretreatment-by-fenton-iron-mud-based-cathodic-anodic-electrolysis-ceramic-granular-fillers
#4
Feilong Zhang, Qinyan Yue, Yuan Gao, Baoyu Gao, Xing Xu, Zhongfei Ren, Yang Jin
In this study, Fenton iron mud applied as main raw material of cathodic-anodic-electrolysis ceramic granular fillers (ICMF) in a continuous reactor, which were used to pretreat oxytetracycline (OTC) wastewater. The ICMF was characterized by Scanning Electron Microscope and Energy Dispersive Spectrometer analysis. The effects of pH value, hydraulic retention time, OTC concentrations and aeration on removal efficiency of total organic carbon (TOC) and OTC were studied. The degradation byproducts of OTC were analyzed by UV-2450, High Performance Liquid Chromatography and Liquid Chromatography-mass Spectrometry...
May 13, 2017: Chemosphere
https://www.readbyqxmd.com/read/28516365/clipping-of-ruptured-intracranial-aneurysms-in-a-hybrid-room-environment-a-case-control-study
#5
Philipp Dammann, Max Jägersberg, Zsolt Kulcsar, Ivan Radovanovic, Karl Schaller, Philippe Bijlenga
BACKGROUND: Hybrid room treatment (HRT) provides the surgeon immediate intraoperative angiography control of aneurysm occlusion and vessel patency. Since it is relatively resource demanding, in clinical routine HRT is reserved for elective cases. However, since its introduction in our department in 2008, several random cases of ruptured intracranial aneurysms (IAs) have been treated in the HR. This study aims to compare the clinical and radiological outcomes of these cases with cases treated conventionally using a matched pair analysis...
May 17, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28514902/performance-of-modified-anaerobic-inclining-baffled-reactor-treating-recycled-paper-mill-effluent-effects-of-influent-chemical-oxygen-demand-concentration-and-hydraulic-retention-time
#6
Haider M Zwain, Hamidi Abdul Aziz, Irvan Dahlan
The performance of modified anaerobic inclining-baffled reactor (MAI-BR) treating recycled paper mill effluent (RPME) was investigated by varying the influent chemical oxygen demand concentration (CODin) from 1,000 to 4,000 mg/L, and the hydraulic retention time (HRT) from 3 to 1 days, corresponding to organic loading rate (OLR) increased from 0.33 to 4 g COD/L day. Throughout 126 days of operation, a maximum removal efficiencies up to 96% of chemical oxygen demand (COD) and 99% of biological oxygen demand (BOD), methane (CH4) yield of 0...
May 18, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28512241/assessment-of-breast-cancer-risk-factors-reveals-subtype-heterogeneity
#7
Johanna Holm, Louise Eriksson, Alexander Ploner, Mikael Eriksson, Mattias Rantalainen, Jingmei Li, Per Hall, Kamila Czene
Subtype heterogeneity for breast cancer risk factors has been suspected, potentially reflecting etiological differences and implicating risk prediction. However, reports are conflicting regarding presence of heterogeneity for many exposures. To examine subtype heterogeneity across known breast cancer risk factors, we conducted a case-control analysis of 2,632 breast cancers and 15,945 controls in Sweden. Molecular subtype was predicted from pathology-record derived immunohistochemistry markers by a classifier trained on PAM50 subtyping...
May 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28503434/comparison-of-isolated-check-visual-evoked-potential-and-standard-automated-perimetry-in-early-glaucoma-and-high-risk-ocular-hypertension
#8
Xiang-Wu Chen, Ying-Xi Zhao
AIM: To compare the diagnostic performance of isolated-check visual evoked potential (icVEP) and standard automated perimetry (SAP), for evaluating the application values of icVEP in the detection of early glaucoma. METHODS: Totally 144 subjects (288 eyes) were enrolled in this study. icVEP testing was performed with the Neucodia visual electrophysiological diagnostic system. A 15% positive-contrast (bright) condition pattern was used in this device to differentiate between glaucoma patients and healthy control subjects...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28498913/the-management-of-menopause-in-women-with-a-history-of-endometriosis-a-systematic-review
#9
L C Gemmell, K E Webster, S Kirtley, K Vincent, K T Zondervan, C M Becker
BACKGROUND: Endometriosis is typically regarded as a premenopausal disease, resolving after natural or iatrogenic menopause due to declining oestrogen levels. Nonetheless, case reports over the years have highlighted the incidence of recurrent postmenopausal endometriosis. It is now clear that both recurrence and malignant transformation of endometriotic foci can occur in the postmenopausal period. Postmenopausal women are commonly treated with hormone replacement therapy (HRT) to treat climacteric symptoms and prevent bone loss; however, HRT may reactivate endometriosis and stimulate malignant transformation in women with a history of endometriosis...
May 11, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28495834/testosterone-therapy-for-menopausal-women
#10
(no author information available yet)
It has been suggested that there is a link between low circulating concentrations of testosterone and reduced sexual functioning in postmenopausal women,(1) and it has been more than 60 years since the effects of testosterone therapy for the management of menopausal symptoms were first reported.(2) Since then, testosterone supplementation has received growing attention for its potential role in maintaining sexual function in menopausal women. The National Institute for Health and Care Excellence guideline on the diagnosis and management of menopause recommends considering testosterone supplementation for women with low sexual desire if hormone replacement therapy (HRT) alone has been ineffective...
May 2017: Drug and Therapeutics Bulletin
https://www.readbyqxmd.com/read/28494324/an-unexpected-diagnosis-of-primary-omental-endometrial-stromal-sarcoma-in-a-patient-with-acute-right-abdominal-pain-a-case-report-and-review-of-literature
#11
Vered Buchholz, George Kiroff, Markus Trochsler, Harsh Kanhere
INTRODUCTION: Extrauterine Endometrial Stromal Sarcoma (EESS) is an extremely rare mesenchymal tumour that simulates other pathologies, and therefore poses a diagnostic challenge. This report outlines a case of EESS arising from the greater omentum mimicking a colonic tumour, with review of literature. PRESENTATION OF CASE: A 47-year-old woman, with history of hysterectomy for menorrhagia and hormone replacement therapy (HRT), presented with right sided abdominal pain and localized peritonism...
April 19, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28494300/behaviour-of-the-main-nonsteroidal-anti-inflammatory-drugs-in-a-membrane-bioreactor-treating-urban-wastewater-at-high-hydraulic-and-sludge-retention-time
#12
D M González-Pérez, J I Pérez, M A Gómez
The behaviour and removal efficiency of ibuprofen (IBU), diclofenac (DCF), ketoprofen (KPF), and naproxen (NPX) during the real urban wastewater treatment by an experimental full-scale MBR working at high sludge and hydraulic retention time (SRT, HRT) were determined. The MBR worked in denitrification/nitrification conformation at 35.4h of HRT (Q=0.45m(3)/h), 37 d of SRT and a recirculation flow rate of 4Q. The experiments were made under steady-state conditions, reaching a biodegradable organic matter removal higher than 99...
April 26, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28494219/oxidative-degradation-of-tetramethylammonium-hydroxide-tmah-by-uv-persulfate-and-associated-acute-toxicity-assessment
#13
Jingting Huang, Kai-Sung Wang, Chenju Liang
Tetramethylammonium hydroxide (TMAH) is widely used in high-tech industries as a developing agent. Ultraviolet (UV) light-activated persulfate (PS, S2O8(2-)) can be used to generate strongly oxidative sulfate radicals, and it also exhibits the potential to treat TMAH-containing wastewater. This study initially investigated the effect of S2O8(2-) concentration and UV strength on the UV/S2O8(2-) process for the degradation of TMAH in a batch reactor. The results suggested that 15 watts (W) of UV-activated S2O8(2-) at concentrations of 10 or 50 mM resulted in pseudo-first-order TMAH degradation rate constants of 3...
May 11, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28486478/effect-of-chronic-estradiol-plus-progesterone-treatment-on-experimental-arterial-and-venous-thrombosis-in-mouse
#14
Marie-Cécile Valéra, Emmanuelle Noirrit-Esclassan, Marion Dupuis, Melissa Buscato, Alexia Vinel, Maeva Guillaume, Anne Briaux, Cédric Garcia, Thibaut Benoit, Olivier Lairez, Coralie Fontaine, Bernard Payrastre, Jean-François Arnal
Postmenopausal hormone replacement therapy (HRT) with estrogen plus progestogens is the first line therapy to treat menopausal symptoms. The progestogen is added to estrogen to reduce or eliminate the excess risk of endometrial cancer due to the unopposed effect of estrogen. Whereas progestin clearly opposes the proliferative and deleterious long-term actions of estrogen on the endometrium, the interference of progestin on the other estrogen action remains unclear. We previously reported that chronic subcutaneous 17α-estradiol (E2) in mice decreases platelet responsiveness, prolongs the tail-bleeding time and protects against acute thromboembolism...
2017: PloS One
https://www.readbyqxmd.com/read/28485588/h2o2-production-in-microbial-electrochemical-cells-fed-with-primary-sludge
#15
Dongwon Ki, Sudeep C Popat, Bruce E Rittmann, César Iván Torres
We developed an energy-efficient, flat-plate, dual-chambered microbial peroxide producing cell (MPPC) as an anaerobic energy-conversion technology for converting primary sludge (PS) at the anode and producing hydrogen peroxide (H2O2) at the cathode. We operated the MPPC with a 9-day HRT in the anode. A maximum H2O2 concentration of ~230 mg/L was achieved in 6 hours of batch cathode operation. This is the first demonstration of H2O2 production using PS in an MPPC, and the energy requirement for H2O2 production was low (~0...
May 9, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28483853/will-women-be-swayed-by-hrt-s-preventive-benefits
#16
Lauren Vogel
No abstract text is available yet for this article.
May 8, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28473194/association-of-catechol-o-methyltransferase-polymorphism-val158met-and-mammographic-density-a-meta-analysis
#17
Roope A Kallionpää, Elina Uusitalo, Juha Peltonen
OBJECTIVES: The Val158Met polymorphism in catechol-O-methyltransferase (COMT) enzyme reduces the methylation of catechol estrogens, which may affect mammographic density. High mammographic density is a known risk factor of breast cancer. Our aim was to perform meta-analysis of the effect of COMT Val158Met polymorphism on mammographic density. METHODS: Original studies reporting data on mammographic density, stratified by the presence of COMT Val158Met polymorphism, were identified and combined using genetic models Met/Val vs...
May 1, 2017: Gene
https://www.readbyqxmd.com/read/28471297/effects-of-electric-potential-nacl-ph-and-distance-between-electrodes-on-efficiency-of-electrolysis-in-landfill-leachate-treatment
#18
Iqbal K Erabee, Amimul Ahsan, Bipin Jose, T Arunkumar, R Sathyamurthy, Syazwani Idrus, N N Nik Daud
This study investigated the effects of different parameters on the removal efficiencies of organic and inorganic pollutants in landfill leachate treatment by electrolysis. Different parameters were considered such as the electric potential (e.g., 24, 40 and 60 V), hydraulic retention time (HRT) (e.g., 40, 60, 80, 100 and 120 min), sodium chloride (NaCl) concentration (e.g., 1, 3, 5 and 7%), pH (e.g., 3, 7 and 9), electrodes materials [e.g., aluminum (Al) and iron (Fe)] and distance between electrodes (e.g...
May 4, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28468123/maximizing-the-production-of-butyric-acid-from-food-waste-as-a-precursor-for-abe-fermentation
#19
Ullrich Heinz Stein, B Wimmer, M Ortner, W Fuchs, G Bochmann
The current study reports on the maximization of butyric acid production from food waste using a mixed microbial fermentation. In semi-continuous fermentations the effect of three different pH values (5.5, 7.0 and 9.0), three different temperatures (37°C, 55°C and 70°C) and two levels of hydraulic retention time (HRT, 2days and 6days) on the formation of butyric acid as well as total volatile fatty acid production (tVFA) were investigated. Overall, pH5.5 provided the lowest butyric acid concentrations regardless of the temperature and the HRT...
April 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28467767/impact-of-endometrial-preparation-protocols-for-frozen-embryo-transfer-on-live-birth-rates
#20
Maria Cerrillo, Leyre Herrero, Alfredo Guillén, Mercedes Mayoral, Juan Antonio García-Velasco
BACKGROUND: It has been reported that a natural cycle (NC) is similar to or even better than hormone replacement therapy (HRT) in patients with regular cycles who undergo frozen embryo transfer (FET). Hundreds of FETs are managed yearly in our clinic. Scheduling these cycles is critical in a busy unit like ours. This is why we have to prove if a NC really shows a better outcome than other endometrium preparation protocols. METHODS: Hence we carried out a prospective study between June 2011 and June 2012, which included 530 patients (570 FET cycles) randomly allocated to two study groups: Group 1 (n=280 cycles), artificial cycle (HRT); or group 2 (n=290 cycles), natural cycle...
April 28, 2017: Rambam Maimonides Medical Journal
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