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https://www.readbyqxmd.com/read/29029043/degradation-of-the-recalcitrant-oil-spill-components-anthracene-and-pyrene-by-a-microbially-driven-fenton-reaction
#1
Ramanan Sekar, Thomas J DiChristina
Oil spill components include a range of toxic saturated, aromatic, and polar hydrocarbons, including pyrene and anthracene. Such contaminants harm natural ecosystems, adversely affect human health, and negatively impact tourism and the fishing industries. Current physical, chemical, and biological remediation technologies are often unable to completely remove recalcitrant oil spill components, which accumulate at levels greater than regulatory limits set by the EPA. In the present study, a microbially-driven Fenton reaction, previously shown to produce hydroxyl (HO) radicals that degrade chlorinated solvents and associated solvent stabilizers, was also found to degrade source zone concentrations of the oil spill components pyrene (10 μM) and anthracene (1 μM) at initial rates of 0...
September 25, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29026782/bentonite-clay-as-a-natural-remedy-a-brief-review
#2
REVIEW
Maryam Moosavi
BACKGROUND: From old times, the human kind has used clays, externally or internally, for maintaining body health or treating some diseases. Meanwhile there are few scientific articles reviewing the beneficial effects of clays on body function. Bentonite clay is one of the available clays in nature, used as traditional habits, and remedies in many cultures. METHODS: These articles explored among 2500 scientific articles published in PubMed to sort the scientific works have been done on the effects of this clay on body function (it was about 100 articles)...
September 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/29026055/childhood-lead-poisoning-an-overview
#3
REVIEW
K L Hon, C K Fung, A Kc Leung
Childhood lead poisoning is a major public health concern in many countries. In 2015, the Hong Kong SAR Government and its citizens faced a major public health crisis due to the presence of lead in the drinking water of a number of public housing estates. Fortunately, no child was diagnosed with lead poisoning that required treatment with chelation. Lead is a ubiquitous, naturally occurring material that exists in air, dust, soil, and water. It is also widely present in industrial products including petrol, paints, ceramics, food cans, candies, cosmetics, traditional remedies, batteries, solder, stained glass, crystal vessels, ammunition, ceramic glazes, jewelry, and toys...
October 13, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/29022380/curcumin-or-bisdemethoxycurcumin-for-nose-to-brain-treatment-of-alzheimer-disease-a-bio-chemo-informatics-case-study
#4
Rania M Hathout, Sherweit H El-Ahmady, AbdelKader A Metwally
The current study introduces a new idea of utilising several bio/chemoinformatics tools in comparing two bio-similar natural molecules viz. curcumin and bisdemethoxycurcumin (BDMC) in order to select a potential nose-to-brain remedy for Alzheimer disease. The comparison comprised several bio/chemo informatics tools. It encompassed all levels starting from loading the drug in a certain carrier; PLGA nanoparticles, to the biopharmaceutical level investigating the interaction with mucin and inhibition of P-gp blood-brain barrier efflux pumps...
October 12, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29017119/mn-2-promoted-cr-vi-reduction-with-oxalic-acid-the-indispensable-role-of-in-situ-generated-mn-3
#5
Yi Mu, Xu Jiang, Zhihui Ai, Falong Jia, Lizhi Zhang
In this study, we demonstrate that Mn(2+) can greatly promote the Cr(VI) reduction by oxalic acid at pH<5 via an induction period and a subsequent auto-acceleration process. The Cr(VI) reduction rate constant during the late auto-acceleration process was about 10 times that of the initial induction period. Characterization results revealed that this interesting two-step Cr(VI) reduction phenomenon was attributed to the in-situ generated Mn(3+) by the oxidation of Mn(2+) with Cr(VI) in the presence of oxalic acid during the induction period...
October 5, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28992557/natural-and-surfactant-modified-zeolites-a-review-of-their-applications-for-water-remediation-with-a-focus-on-surfactant-desorption-and-toxicity-towards-microorganisms
#6
REVIEW
Peter J Reeve, Howard J Fallowfield
The objective of this review is to highlight the need for further investigation of microbial toxicity caused by desorption of surfactant from Surfactant Modified Zeolite (SMZ). SMZ is a low cost, versatile permeable reactive media which has the potential to treat multiple classes of contaminants. With this combination of characteristics, SMZ has significant potential to enhance water and wastewater treatment processes. Surfactant desorption has been identified as a potential issue for the ongoing usability of SMZ...
October 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28988098/multiple-pathway-remediation-of-mercury-contamination-by-a-versatile-selenite-reducing-bacterium
#7
Xiaonan Wang, Zhanfei He, Hongwei Luo, Ming Zhang, Daoyong Zhang, Xiangliang Pan, Geoffrey Michael Gadd
Mercury contamination is a global concern because of its high toxicity, persistence, bioaccumulative nature, long distance transport and wide distribution in the environment. In this study, the efficiency and multiple-pathway remediation mechanisms of Hg(2+) by a selenite reducing Escherichia coli was assessed. E. coli can reduce Hg(2+) to Hg(+) and Hg(0) and selenite to selenide at the same time. This makes a multiple-pathway mechanisms for removal of Hg(2+) from water in addition to biosorption. It was found that when the original Hg(2+) concentration was 40μgL(-1), 93...
October 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28987074/combination-of-rheum-ribes-and-metformin-against-diabetes-thermal-hyperalgesia-and-tactile-allodynia-in-a-mice-model
#8
Karim Raafat, Abdalla El-Lakany
Context • The prevalence of diabetes mellitus (DM) is increasing. Because of its progressive nature, therapeutic shifts and combinations are often required to reduce the risk of glucose toxicity and avoid serious side effects. To treat DM and its related complications, a combination therapy may offer a promising remedy to counteract those issues. Objectives • The study was established to evaluate the phytochemical content of a standardized aqueous extract of Rheum ribes (RR) and to determine the antidiabetic, antihyperalgesic, and antimechanical allodynic effects of 50 mg/kg of RR alone, 25 mg/kg of metformin (MTF) alone, and a combination of the 2 substances (MTF+RR) in mice with alloxan-induced diabetes...
October 2, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28976726/novel-metal-organic-framework-mof-based-composite-material-for-the-sequestration-of-u-vi-and-th-iv-metal-ions-from-aqueous-environment
#9
Ayoub Abdullah Alqadami, Mu Naushad, Zeid Abdullah Alothman, Ayman A Ghfar
The combination of magnetic nanoparticles and metal-organic frameworks (MOFs) has demonstrated their prospective for pollutant sequestration. In this work, a magnetic metal-organic framework nanocomposite (Fe3O4@AMCA-MIL53(Al) was prepared and used for the removal of U(VI) and Th(IV) metal ions from aqueous environment. Fe3O4@AMCA-MIL53(Al) nanocomposite was characterized by TGA, FTIR, SEM-EDX, XRD, HRTEM, BET, VSM (vibrating sample magnetometry), and XPS analyses. A batch technique was applied for the removal of the aforesaid metal ions using Fe3O4@AMCA-MIL53(Al) at different operating parameters...
October 4, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28974229/use-of-cultivated-plants-and-non-plant-remedies-for-human-and-animal-home-medication-in-liuba%C3%A5-district-belarus
#10
Renata Sõukand, Yanina Hrynevich, Julia Prakofjewa, Tatsiana Valodzina, Iryna Vasilyeva, Jury Paciupa, Aliaksandra Shrubok, Aliaksei Hlushko, Yana Knureva, Yulia Litvinava, Siarhei Vyskvarka, Hanna Silivonchyk, Alena Paulava, Mare Kõiva, Raivo Kalle
BACKGROUND: To use any domestic remedy, specific knowledge and skills are required. Simple logic dictates that the use of wild plants in the context of limited interaction with nature requires prior identification, while in the case of non-plant remedies and cultivated plants this step can be omitted. This paper aims to document the current and past uses of non-plant remedies and cultivated plants in the study region for human/animal medication; to analyze the human medicinal and veterinary use areas in the context of the remedy groups; to qualitatively compare the results with relevant historical publications; and to compare the intensity and purpose of use between the remedy groups...
October 3, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/28969119/antimicrobial-activity-of-honey-with-special-reference-to-methicillin-resistant-staphylococcus-aureus-mrsa-and-methicillin-sensitive-staphylococcus-aureus-mssa
#11
Guruvu Neeraja Rani, Radhika Budumuru, Narasinga Rao Bandaru
INTRODUCTION: Antimicrobial agents are essentially important in reducing the global burden of infectious diseases. With the irrational and excessive use of antibiotics in underdeveloped and developing countries, there may be chances to develop and spread resistant pathogens in the community. As a result, the effectiveness of the antibiotics is diminishing. Therefore, the need for novel alternative antimicrobial strategies has renewed interest in natural products like turmeric, honey, ginger and others exhibiting antibacterial properties...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28965059/degradation-of-ketoprofen-by-sulfate-radical-based-advanced-oxidation-processes-kinetics-mechanisms-and-effects-of-natural-water-matrices
#12
Yiping Feng, Qingyun Song, Wenying Lv, Guoguang Liu
Ketoprofen (KET) is a mostly used nonsteroidal anti-inflammatory drug that has been frequently detected in wastewater effluents and surface waters. In this study, we investigated the degradation of KET by sulfate radical (SO4(-)) based advanced oxidation processes (SR-AOPs) in aqueous solution. The degradation kinetics, mechanisms, and effects of natural water matrices on thermally activated persulfate (TAP) oxidation of KET were systematically investigated. Increasing the temperature and persulfate (PS) concentrations greatly enhanced the degradation of KET...
September 25, 2017: Chemosphere
https://www.readbyqxmd.com/read/28963973/antagonistic-effect-of-humic-acid-and-naphthalene-on-biochar-colloid-transport-in-saturated-porous-media
#13
Wen Yang, Yang Wang, Jianying Shang, Kesi Liu, Prabhakar Sharma, Juan Liu, Baoguo Li
Biochar is a carbon-enriched material derived from organic material pyrolysis under no/limited oxygen, which is widely used for soil amendment, carbon sequestration, and contaminated soil remediation. This study aims to explore the interplay effect of humic acid (HA) and naphthalene on transport of biochar colloid (BC) in saturated porous media. A series of column experiments were conducted to study BC mobility at different concentrations of HA (0, 10, and 20 mg L(-1)) and naphthalene (0, 0.1, and 0.2 mg L(-1))...
September 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/28962172/psoralen-stimulates-osteoblast-proliferation-through-the-activation-of-nuclear-factor-%C3%AE%C2%BAb-mitogen-activated-protein-kinase-signaling
#14
Feimeng Li, Qihuo Li, Xiaoqing Huang, Yunting Wang, Chana Ge, Yong Qi, Wei Guo, Hongtao Sun
Osteoporosis is a systemic skeletal disease that leads to increased bone fragility and susceptibility to fracture. Approximately 50% of postmenopausal women develop osteoporosis as a result of postmenopausal estrogen deficiency. To reduce fractures related to osteoporosis in women, previous studies have focused on therapeutic strategies that aim to increase bone formation or decrease bone resorption. However, pharmacological agents that aim to improve bone fracture susceptibility exhibit side effects. Current studies are investigating natural alternatives that possess the benefits of selective estrogen receptor modulators (SERMs) without the adverse effects...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28960627/when-holistic-care-is-not-holistic-enough-the-role-of-sexual-health-in-mental-health-settings
#15
Avril Hendry, Austyn Snowden, Michael Brown
AIM: to explore the preparation that mental health nurses receive to address sexual health in practice. BACKGROUND: People who use the mental health services often have complex sexual health needs. Mental health nurses (MHNs) are well placed to offer support. However, this rarely happens in practice and therefore people's sexual health needs are not being routinely addressed. It is not known why this is the case. DESIGN: Systematic review and meta-ethnography...
September 27, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28959136/benzene-oxidation-by-fe-iii-catalyzed-sodium-percarbonate-matrix-constituent-effects-and-degradation-pathways
#16
Xiaori Fu, Xiaogang Gu, Shuguang Lu, Virender K Sharma, Mark L Brusseau, Yunfei Xue, Muhammad Danish, George Y Fu, Zhaofu Qiu, Qian Sui
Complete degradation of benzene by the Fe(III)-activated sodium percarbonate (SPC) system is demonstrated. Removal of benzene at 1.0 mM was seen within 160 min, depending on the molar ratios of SPC to Fe(III). A mechanism of benzene degradation was elaborated by free-radical probe-compound tests, free-radical scavengers tests, electron paramagnetic resonance (EPR) analysis, and determination of Fe(II) and H2O2 concentrations. The degradation products were also identified using gas chromatography-mass spectrometry method...
February 1, 2017: Chemical Engineering Journal
https://www.readbyqxmd.com/read/28956697/annurca-apple-nutraceutical-formulation-enhances-keratin-expression-in-a-human-model-of-skin-and-promotes-hair-growth-and-tropism-in-a-randomized-clinical-trial
#17
Gian Carlo Tenore, Domenico Caruso, Giuseppe Buonomo, Maria D'Avino, Rita Santamaria, Carlo Irace, Marialuisa Piccolo, Maria Maisto, Ettore Novellino
Several pharmaceutical products have been formulated over the past decades for the treatment of male and female alopecia, and pattern baldness, but relatively few metadata on their efficacy have been published. For these reasons, the pharmaceutical and medical attention has recently focused on the discovery of new and safer remedies. Particularly, great interest has been attracted by oligomeric procyanidin bioactivity, able to promote hair epithelial cell growth as well as to induce the anagen phase. Specifically, the procyanidin B2, a dimeric derivative extracted from apples, has demonstrated to be one of the most effective and safest natural compounds in promoting hair growth, both in vitro and in humans by topical applications...
September 28, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28949009/nausea-and-vomiting-of-pregnancy-effects-on-quality-of-life-and-day-to-day-function
#18
Amelia Tan, Sandra Lowe, Amanda Henry
AIMS: To investigate the effect of nausea and vomiting of pregnancy (NVP) on quality of life (QoL) and activities of daily living/socioeconomic function in a contemporary Australian setting. MATERIALS AND METHODS: Observational, single centre prospective cohort study using validated survey instruments in pregnant women at 9-16 weeks gestation at a tertiary metropolitan women's hospital in Sydney, Australia. QoL measured by the Short-Form Health Survey (SF-12) was compared between those with and without NVP...
September 26, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28948960/remediation-of-intramacrophageal-shigella-dysenteriae-type-1-by-probiotic-lactobacilli-isolated-from-human-infants-stool-samples
#19
Radhika Trikha, Praveen Rishi, Rupinder Tewari
BACKGROUND & OBJECTIVES: Shigella dysenteriae is one of the most virulent pathogens causing bacillary dysentery and is responsible for high mortality in infants. To reduce the load of antibiotic therapy for treating shigellosis, this study was carried out to assess the ex vivo effect of novel probiotic lactobacilli, isolated from infant's stool samples, on killing S. dysenteriae type 1 residing in the rat macrophages. METHODS: Stool samples from infants were collected, processed for the isolation of lactobacilli and screened for the probiotic attributes (acid tolerance, bile tolerance, ability to adhere intestinal cells and anti-S...
May 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28946641/kinetics-and-molecular-docking-studies-of-6-formyl-umbelliferone-isolated-from-angelica-decursiva-as-an-inhibitor-of-cholinesterase-and-bace1
#20
Md Yousof Ali, Su Hui Seong, Machireddy Rajeshkumar Reddy, Sung Yong Seo, Jae Sue Choi, Hyun Ah Jung
Coumarins, which have low toxicity, are present in some natural foods, and are used in various herbal remedies, have attracted interest in recent years because of their potential medicinal properties. In this study, we report the isolation of two natural coumarins, namely umbelliferone (1) and 6-formyl umbelliferone (2), from Angelica decursiva, and the synthesis of 8-formyl umbelliferone (3) from 1. We investigated the anti-Alzheimer disease (anti-AD) potential of these coumarins by assessing their ability to inhibit acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and β-site amyloid precursor protein (APP) cleaving enzyme 1 (BACE1)...
September 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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