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https://www.readbyqxmd.com/read/29161569/denitrification-of-landfill-leachate-under-different-hydraulic-retention-time-in-a-two-stage-anoxic-oxic-combined-membrane-bioreactor-process-performances-and-bacterial-community
#1
Jianbo Liu, Panyue Zhang, Haibo Li, Yuan Tian, Siyu Wang, Yonghui Song, Guangming Zeng, Chen Sun, Zhiyong Tian
Two-stage anoxic/oxic combined membrane bioreactor (A/O-A/O-MBR) process was used to treat leachate generated from Shenyang Laohuchong landfill, and the effect of hydraulic retention time (HRT) was studied. A long HRT of 9 d and a short HRT of 5 d showed negative effect on the stability of process, resulting in a higher organic concentration of effluent than that with a HRT of 7 d, while the highest removal of chemical oxygen demand (COD), ammonia (NH4(+)-N) and total nitrogen (TN) were achieved with a HRT of 7 d, which was 82...
November 11, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29158795/mismatch-repair-protein-hmlh1-but-not-hmsh2-enhances-estrogen-induced-apoptosis-of-colon-cancer-cells
#2
Peng Jin, De-Zhi Wang, Chen-Xi Lyu, Ya-Ting Wang, Yu-Qi He, Jian-Qiu Sheng, Xuhang Li
BACKGROUND: Epidemiological studies suggest a protective role of estrogen against colon carcinogenesis; this effect appears to be dependent on mismatch repair (MMR) status. However, the underlying mechanism remains unclear. This study investigated the role of MMR proteins in apoptosis of colon cancer cells in the presence or absence of estrogen. METHODS: Two major MMR proteins, human mutL homolog 1 (hMLH1) and mutS homolog 2 (hMSH2), as well as estrogen receptor-β (ERβ), were transiently expressed in either hMLH1-deficient HCT116 cells or hMSH2-deficient LoVo cells...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29157280/the-effects-of-progesterones-on-blood-lipids-in-hormone-replacement-therapy
#3
REVIEW
Yifan Jiang, Weijie Tian
The safety of progestogens as a class has drawn much attention after the publication of data from the Women's Health Initiative (WHI) trial, particularly with respect to cardiovascular disease. Depending on the chemical structure, pharmacokinetics, receptor affinity and potency of action, progestogens have a divergent range of properties that may translate to very different clinical effects. The purpose of this review is to describe the role of varied progestogens in hormone replacement therapy (HRT), especially focusing on blood lipids, which are the most important parameters for assessing cardiovascular disease risk...
November 21, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29155305/hey1-and-hey2-are-differently-expressed-during-mouse-tooth-development
#4
Kotono Kibe, Mitsushiro Nakatomi, Shinji Kataoka, Takashi Toyono, Yuji Seta
The Hey family (also known as Chf, Herp, Hesr, and Hrt) is a set of Hairy/Enhancer of Split-related basic helix-loop-helix type transcription factors. Hey1, Hey2, and HeyL have been identified in mammals. Although Hey proteins are known to regulate cardiovascular development, muscle homeostasis, osteogenesis, neurogenesis, and oncogenesis, their roles in tooth development have been largely obscure. Therefore, this study aimed to clarify detailed spatiotemporal expression patterns of Hey1 and Hey2 in developing molars and incisors of mice by section in situ hybridization...
November 16, 2017: Gene Expression Patterns: GEP
https://www.readbyqxmd.com/read/29154153/effects-of-temperature-and-hrt-on-performance-of-a-novel-insulated-anaerobic-filter-iaf-system-incorporated-with-the-waste-heat-input-for-building-wastewater-treatment
#5
Chalearn Bouted, Chavalit Ratanatamskul
Effects of temperature and hydraulic retention time (HRT) on the performance of the novel insulated anaerobic filter system (IAF) incorporated with the waste heat input in treating building wastewater were investigated. In this study, an electric heater was used to simulate the waste heat input from air conditioner to the IAF system. The wastewater was collected from an office building in Phitsanulok province, Thailand. The HRTs of IAF system were varied to 9, 18 and 27 h, whereas the water temperatures were raised from 30 °C to 35 °C, 40 °C and 45 °C by electric heating to the IAF tank with the covered insulator...
November 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29150167/reproductive-factors-in-relation-to-heart-failure-in-women-a-systematic-review
#6
REVIEW
Renee Bolijn, N Charlotte Onland-Moret, Folkert W Asselbergs, Yvonne T van der Schouw
BACKGROUND: The biological mechanisms underlying the sex-related differences in risk of heart failure are still not well understood. The aim of this review was to provide an overview of the current evidence on the association between reproductive factors and risk of heart failure in women. METHODS: A systematic review of the literature was conducted. PubMed and Embase databases were searched for publications on the following reproductive factors as potential risk factors for heart failure in women: age at menarche, duration and frequency of the menstrual cycle, reproductive lifespan, use of contraception, polycystic ovarian syndrome (PCOS), pregnancy characteristics (e...
December 2017: Maturitas
https://www.readbyqxmd.com/read/29148032/secondary-glaucoma-in-uveitis-comparison-of-the-optic-nerve-head-morphology-among-a-nonmydriatic-fundus-camera-hrt-and-sd-oct
#7
Milena Pahlitzsch, Matthias K J Klamann, Saskia Jacob, Carl Erb, Sibylle Winterhalter, Necip Torun, Anna-Karina B Maier, Eckart Bertelmann
PURPOSE: To assess the correlation between the disc damage likelihood scale (DDLS) objectively measured by a nonmydriatic fundus camera, confocal laser scanning ophthalmoscopy (HRT3), and spectral-domain optical coherence tomography (SD-OCT) in uveitic glaucoma. METHODS: A total of 59 patients with uveitic glaucoma (21 female, 38 male; mean age 56.8 ± 18.7 years) were included in this prospective cross-sectional study. All patients were measured by the Kowa Nonmyd WX 3D camera (2D/3D nonmydriatic retinal camera, Kowa Company), the HRT3 (Heidelberg Engineering), and SD-OCT (Carl Zeiss Meditec) by one examiner on the same day...
November 4, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29137013/combination-of-ewing-test-heart-rate-variability-and-heart-rate-turbulence-analysis-for-early-diagnosis-of-diabetic-cardiac-autonomic-neuropathy
#8
Kun Lin, Liling Wei, Zhihua Huang, Qiong Zeng
The aim of this study was to compare and analyze Ewing test, heart rate variability (HRV), and heart rate turbulence (HRT) in the diagnosis of cardiac autonomic neuropathy (CAN) in diabetic patients.Ninety diabetic patients (age 18-78) and 20 nondiabetic control subjects were studied. Standard Ewing test and 24-hour Holter was performed in all participants to evaluate CAN. Patients with Ewing score ≥2 were classified as CAN+.The rate of CAN+ in diabetic patients [44.4% (40/90)] was higher than that in the controls [5% (1/20)] (P < ...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136941/enhanced-granulation-and-methane-recovery-at-low-load-by-downflow-sludge-circulation-in-anaerobic-treatment-of-domestic-wastewater
#9
Yangyang Liu, Lihui Huang, Guihua Dong, Gaofeng Liu, Xueyuan Wu, Chuang Wang, Xiaowei Liu, Lisha Wang
The effects of downflow sludge circulation on granulation and methane recovery at low load were investigated for domestic wastewater treatment in a modified anaerobic reactor. Compared with conventional upflow anaerobic reactors, enhanced granulation with shortened start-up time was achieved and stable granules were successfully cultivated only after 58 days operations. The introduction of downflow sludge circulation resulted in reverse wastewater-sludge flow and uniform sludge distribution in the reaction zone, which contributed to enhanced wastewater-sludge mass transfer and satisfactory performance with a high soluble chemical oxygen demand (SCOD) removal efficiency of 94...
October 31, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29131974/synthetic-hospital-wastewater-treatment-by-coupling-submerged-membrane-bioreactor-and-electrochemical-advanced-oxidation-process-kinetic-study-and-toxicity-assessment
#10
Yassine Ouarda, Bhagyashree Tiwari, Antonin Azaïs, Marc-Antoine Vaudreuil, Sokhna Dieng Ndiaye, Patrick Drogui, Rajeshwhar Dayal Tyagi, Sébastien Sauvé, Mélanie Desrosiers, Gerardo Buelna, Rino Dubé
In this work, the combination of membrane bioreactor (MBR) and electro-oxidation (EO) process was studied for the treatment of a synthetic hospital wastewater fortified with four pharmaceutical pollutants namely carbamazepine (CBZ), ibuprofen (IBU), estradiol (E-E) at a concentration of 10 μg L(-1) venlafaxine (VEN) at 0.2 μg L(-1). Two treatment configurations were studied: EO process as pre-treatment and post-treatment. Wastewater treatment with MBR alone shows high removal percentages of IBU and E-E (∼90%)...
November 4, 2017: Chemosphere
https://www.readbyqxmd.com/read/29127229/relationship-between-hormone-replacement-therapy-and-spinal-osteoarthritis-a-nationwide-health-survey-analysis-of-the-elderly-korean-population
#11
Jung-Ho Park, Jae-Young Hong, Kyungdo Han, Seung-Woo Han, Eun Mi Chun
OBJECTIVES: To identify the effects of hormone replacement therapy (HRT) on spinal osteoarthritis (OA). METHODS AND DESIGN: A cross-sectional study of a nationwide survey was performed. SETTING: This study collected data from the fifth Korean National Health and Nutrition Examination Survey (2010-2012). PARTICIPANTS: After excluding ineligible respondents, the total number of participants in this study was 4265 females...
November 9, 2017: BMJ Open
https://www.readbyqxmd.com/read/29125272/the-relationship-between-the-hormone-levels-before-transplantation-and-outcomes-of-hormone-replacement-therapy-frozen-embryo-transfer
#12
Yao-Fang Liu, Fang Wang, Gui-Ying Huang, Xi-Guang Mao
OBJECTIVE: To analyze the relationship between outcomes of hormone replacement therapy-frozen embryo transfer (HRT-FET) and serum estradiol and progesterone levels on the day of endometrial transformation and before transplantation. METHODS: Clinical datas of patients who underwent 426 cycles of FET were retrospectively analyzed and were divided into groups according to estradiol and progesterone levels. Differences in embryo implantation rate and clinical pregnancy rate were compared, and relationship between estradiol levels and outcome of transplantation was analyzed...
November 10, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/29122460/anaerobic-digestion-of-grape-pomace-effect-of-the-hydraulic-retention-time-on-process-performance-and-fibers-degradability
#13
Jean H El Achkar, Thomas Lendormi, Dominique Salameh, Nicolas Louka, Richard G Maroun, Jean-Louis Lanoisellé, Zeina Hobaika
To optimize the anaerobic digestion of grape pomace under mesophilic conditions, continuous digesters were operated at different hydraulic retention times (HRT) (30, 20, 15 and 10 days) equivalent to organic loading rates (OLR) of 2.5, 3.7, 5.7 and 7.3 kg COD m(-3) d(-1), respectively. At HRTs of 30 and 20 days, steady state conditions were observed with methane yields of 0.984 ± 0.013 NL d(-1) and 1.362 ± 0.018 NL d(-1), respectively. The HRT of 15 days was found critical because of acids accumulation through the experiments...
November 6, 2017: Waste Management
https://www.readbyqxmd.com/read/29121503/biohydrogen-production-at-ph-below-3-0-is-it-possible
#14
V T Mota, A D N Ferraz Júnior, E Trably, M Zaiat
Biological hydrogen production was investigated in continuous acidogenic reactors fed with sucrose at 30 °C without pH control. In the first experimental phase, three reactors were compared: a structured fixed-bed (FB), a granular UASB (UG) and a flocculent UASB (UF-1). They were run at 3.3 h HRT and 33 gCOD L(-1)d(-1) OLR. Hydrogen production occurred throughout the experimental period with an average effluent pH of only 2.8. The FB, UG and UF-1 reactors presented volumetric hydrogen production rates (VHPR) of 95 ± 69, 45 ± 37 and 54 ± 32 mLH2 L(-1)h(-1), respectively; and H2 yields (HY) of 1...
October 30, 2017: Water Research
https://www.readbyqxmd.com/read/29113838/anaerobic-co-digestion-of-pig-manure-and-food-waste-effects-on-digestate-biosafety-dewaterability-and-microbial-community-dynamics
#15
C Dennehy, P G Lawlor, M S McCabe, P Cormican, J Sheahan, Y Jiang, X Zhan, G E Gardiner
This study assessed the effect of varying pig manure (PM)/food waste (FW) mixing ratio and hydraulic retention time (HRT) on methane yields, digestate dewaterability, enteric indicator bacteria and microbial communities during anaerobic co-digestion. Three 10 L digesters were operated at 39 °C, each with a PM/FW feedstock composition of 85%/15%, 63%/37% and 40%/60% (volatile solids basis). While the PM/FW ratio was different among reactors, the organic loading rate applied was equal, and increased stepwise with reducing HRT...
November 4, 2017: Waste Management
https://www.readbyqxmd.com/read/29113371/change-in-risk-of-breast-cancer-after-receiving-hormone-replacement-therapy-by-considering-effect-modifiers-a-systematic-review-and-dose-response-meta-analysis-of-prospective-studies
#16
Kang Wang, Feng Li, Li Chen, Yan-Mei Lai, Xiang Zhang, Hong-Yuan Li
We synthesize the current literatures and use the power of meta-analysis to examine trends on association between hormone replacement therapy (HRT) and the risk of breast cancer (BC). We performed a comprehensive literature search using PubMed, EMBASE, and Web of Science from their inception until Jan 2017. Prospective studies that provided adjusted risk estimates of HRT and BC risk were eligible. Categorical and dose-response meta-analyses followed the PRISMA were conducted using random effects model and restricted cubic spline model, respectively...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29109895/are-all-retinal-nerve-fiber-layer-defects-on-optic-coherence-tomography-glaucomatous
#17
Sirel Gür Güngör, Akman Ahmet
Objectives: In this study, we investigated the patients who were referred to our clinic with a prediagnosis of glaucoma based on retinal nerve fiber layer (RNFL) defects on optic coherence tomography (OCT) but were determined to have nonglaucomatous RNLF defects upon detailed examination. Materials and Methods: The ophthalmic examination notes, OCT images, Heidelberg retinal tomography (HRT) II and fundus photographs of 357 patients were retrospectively evaluated...
October 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29096316/degradation-of-triclosan-and-triclocarban-and-formation-of-transformation-products-in-activated-sludge-using-benchtop-bioreactors
#18
Dana L Armstrong, Nuria Lozano, Clifford P Rice, Mark Ramirez, Alba Torrents
Benchtop bioreactors were run aerobically with activated sludge samples collected from a large municipal wastewater treatment plant (WWTP) to understand how increased hydraulic retention time (HRT), sludge retention time (SRT), and varying treatment temperatures (21°C and 30°C) impact concentrations of the endocrine disrupting antimicrobials triclosan (TCS), triclocarban (TCC), and their transformation products. Samples from the reactors were collected periodically over a 122-196h period and the solid and liquid fraction were separately quantitated for TCS, TCC, and methyltriclosan (MeTCS) and scanned qualitatively for six other transformation products...
October 30, 2017: Environmental Research
https://www.readbyqxmd.com/read/29073798/bone-marrow-derived-mesenchymal-stem-cells-transplantation-rescues-premature-ovarian-insufficiency-induced-by-chemotherapy
#19
Riqiang Bao, Ping Xu, Yishu Wang, Jing Wang, Li Xiao, Gang Li, Chunping Zhang
Premature ovarian insufficiency (POI) is an important cause of infertility and also cause menopausal symptoms, which greatly reduced the quality of life for women. Hormone replacement therapy (HRT), as an important strategy, improved the quality of life for patients, however, the role of HRT in promoting fertility remains controversial. Therefore, seeking an optimal regime for POI becomes more urgent. In this study, we established POI model induced by CTX and BUS and utilized bone marrow derived mesenchymal stem cells (BM-MSCs) transplantation to treat the POI...
October 26, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29070478/-successful-pregnancy-following-intracytoplasmic-sperm-injection-embryo-transfer-in-a-patient-with-premature-ovarian-insufficiency-a-case-report
#20
Wei-Xu Ma, Xin Chen, Xing-Yu Zhou, Xue-Lan Li, Wan-le Chen, De-Sheng Ye, Shi-Ling Chen
We report a case of ovarian function fluctuation during long-term follow-up in a patient with premature ovarian insufficiency (POI). The patient finally obtained clinical pregnancy with subsequent uneventful full-term delivery after several intracytoplasmic sperm injection-embryo transfer (ICSI-ET) cycles. This case demonstrates that hormone replacement therapy (HRT) and assisted reproductive therapy should be applied as soon as possible to young patients with POI who have a strong desire for pregnancy in the absence of contraindications...
October 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
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