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Vipin Tyagi, M D Mustafa, Tusha Sharma, B D Banerjee, Rafat S Ahmed, A K Tripathi, Kiran Guleria
BACKGROUND & OBJECTIVES: Preterm birth (PTB) is an important cause of prenatal death, neonatal morbidity and mortality and adult illness. Increased inflammation occurs in normal parturition, and inflammatory cytokines and oxidative stress are found to be higher in PTB cases. The present study was planned to investigate the association of organochlorine pesticides (OCPs) with mRNA expression of inflammatory pathway genes such as tumour necrosis factor-alpha (TNF-α) and cyclooxygenase-2 (COX-2) in preterm delivery (PTD) cases...
June 2016: Indian Journal of Medical Research
Jianteng Sun, Lili Pan, Daniel C W Tsang, Zhiheng Li, Lizhong Zhu, Xiangdong Li
The present study investigated phthalate esters (PAEs) and organochlorine pesticides (OCPs) in agricultural soils and vegetables from eastern China. The concentrations of PAEs ranged from 109 to 5560 ng/g in soils and 60.1 to 2390 ng/g in cabbages, with average concentrations of 946 and 601 ng/g, respectively. The concentrations of OCPs ranged from <0.1 to 662 ng/g in soils and <0.1 to 42.8 ng/g in cabbages, with average concentrations of 134 and 11.6 ng/g, respectively. OCPs were mainly in the 0-30 cm surface soil layers, while PAEs could infiltrate in deep soil profiles to 70-80 cm layer...
October 13, 2016: Environmental Science and Pollution Research International
Giuseppa Di Bella, Imen Haddaoui, Vincenzo Lo Turco, Angela Giorgia Potortì, Maria Rita Fede, Giacomo Dugo
BACKGROUND: Despite the importance of beans as food, few works are conducted to control their contamination by Persistent Organic Pollutants (POPs), compounds of highly importance because of their toxicity and tendency to accumulate in food chains. In order to evaluate the human exposure to POPs by beans consumption a monitoring program was conducted on polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) residues in samples coming from Italy, Mexico, India, Japan, Ghana and Ivory Coast...
October 13, 2016: Journal of the Science of Food and Agriculture
Guanglong Liu, Wenwen Guo, Shaobo Yuan, Hong Zhu, Tewu Yang, Yiyong Zhou, Duanwei Zhu
In this paper, the characterization of CaCO3-P coprecipitation on the leaf surface of Potamogeton crispus at various temperatures in pot experiments was investigated. White precipitates occurred on the leaf surfaces during the P. crispus growth period, and the chemical analysis demonstrates that the white precipitates contain Ca and P. The primary constituent of the white precipitates on the leaf of P. crispus was octacalcium phosphate (OCP) and hydroxyapatite. XRD characterization showed that the precipitates mostly consisted of crystals formed by calcium carbonate and hydroxyapatite, and the high calcium/phosphorus ratio indicated that the white coprecipitates were CaCO3-P...
October 12, 2016: Environmental Science and Pollution Research International
Serkan Tekin, Idil Pazi
Organochlorinated pesticides and Aroclors were measured in the muscle of two edible fish species (gray mullet, sea bream) and blue crab, collected from eastern Mediterranean coast in 2013. The concentration of organochlorinated pesticides (OCPs) and Aroclors in biota samples which were collected at six sites ranged from 1.0-8.6 and 9-47.5 ng g(-1) wet weight, respectively. Total DDT concentrations in seafood samples were compared to tolerance level established by the US Food and Drug Administration (FDA); the concentrations were detected below the tolerence level...
October 12, 2016: Environmental Science and Pollution Research International
Yonggui Song, Dan Su, Yuan Shen, Hongyu Liu, Li Wang
A novel open circuit potential biosensor (OCPS) composed of a working electrode and a Ag/AgCl reference electrode was designed for in vivo continuous glucose monitoring in this work. The macroporous carbon derived from kenaf stem (KSC) was used to construct a KSC microelectrode (denoted as KSCME) which was subsequently used to load glucose oxidase (GOD) as the working electrode. The resulting GOD/KSCMEs could catalyze the oxidation of glucose directly to result in changes of the open circuit potential (V oc) of the OCPS...
October 11, 2016: Analytical and Bioanalytical Chemistry
Hongjun Li, Sheng Ye, Jinqing Ye, Jingfeng Fan, Meiling Gao, Hao Guo
A geographically extensive investigation was carried out to analyze the concentrations of heavy metals, PCBs and OCPs in the sediments and marine organisms collected from the Liaohe Estuary. In order to determine the spatial distribution and potential ecological risk of heavy metals, the surface sediments were collected from 44 sites in the Liaohe Estuary. The results showed that the heavy metal contents in the sediments were observed in the following order: Cr (11.2-84.8mg/kg)>Cu (1.7-47.9mg/kg)>Pb (4...
October 7, 2016: Marine Pollution Bulletin
Mário Paz, Luísa Correia-Sá, Carla B Vidal, Helena Becker, Elisane Longhinotti, Valentina F Domingues, Cristina Delerue-Matos
The Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method was applied to the extraction of 14 organochlorine pesticides (OCPs) residues from commercial fruit pulps available in supermarkets in Fortaleza, Northeastern Brazil. The analyses were carried out by gas chromatography (GC), coupled to an electron-capture detector (ECD), and were confirmed by GC-tandem mass spectrometry (MS). The parameters of the analytical method, such as accuracy, precision, linear range, limits of detection and quantification, were determined for each pesticide...
October 11, 2016: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
Thamani T Gondo, Veronica C Obuseng, Lesego C Mmualefe, Harriet Okatch
HS-SPME was optimised using blank plant sample for analysis of organochlorine pesticides (OCPs) of varying polarities in selected medicinal plants obtained from northern part of Botswana, where OCPs such as DDT and endosulfan have been historically applied to control disease carrying vectors (mosquitos and tsetse fly). The optimised SPME parameters were used to isolate analytes from root samples of five medicinal plants obtained from Maun and Kasane, Botswana. The final analytes determination was done with a gas chromatograph equipped with GC-ECD and analyte was confirmed using electron ionisation mass spectrometer (GC-MS)...
2016: Journal of Analytical Methods in Chemistry
Anat Akiva, Michael Kerschnitzki, Iddo Pinkas, Wolfgang Wagermaier, Karina Yaniv, Peter Fratzl, Lia Addadi, Steve Weiner
Both in vivo and ex vivo observations support the hypothesis that bone mineral formation proceeds via disordered precursor phases. The characteristics of the precursor phases are however not well defined, but OCP-like, ACP-like and HPO42- enriched phases were detected. Here we use in vivo Raman spectroscopy and high-resolution wide-angle X-ray diffraction (WAXD) to characterize and map at 2µm resolution the mineral phases in the rapidly forming tail fin bones of living zebrafish larvae and zebrafish larvae immediately after sacrifice, respectively...
October 6, 2016: Journal of the American Chemical Society
Rachel Morello-Frosch, Lara J Cushing, Bill M Jesdale, Jackie M Schwartz, Weihong Guo, Tan Guo, Miaomiao Wang, Suhash Harwani, Syrago-Styliani Elias Petropoulou, Wendy Duong, Junesoo Park, Myrto X Petreas, Ryszard Gajek, Josephine Alvaran, Jianwen She, Dina Dobraca, Rupali Das, Tracey J Woodruff
Exposures to environmental pollutants in utero may increase the risk of adverse health effects. We measured the concentrations of 59 potentially harmful chemicals in 77 maternal and 65 paired umbilical cord blood samples collected in San Francisco during 2010-11, including polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polybrominated diphenyl ethers (PBDEs), hydroxylated PBDEs (OH-PBDEs), and perfluorinated compounds (PFCs) in serum, and metals in whole blood. Consistent with previous studies, we found evidence that concentrations of mercury (Hg) and lower-brominated PBDEs were often higher in umbilical cord blood or serum than in maternal samples (median cord:maternal ratio > 1), while for most PFCs and lead (Pb), concentrations in cord blood or serum were generally equal to or lower than their maternal pair (median cord:maternal ratio ≤ 1)...
October 4, 2016: Environmental Science & Technology
Ishwar Chandra Yadav, Ningombam Linthoingambi Devi, Jun Li, Gan Zhang, Pawan Raj Shakya
Nepal is a landlocked country located between world's two most populous countries-India and China where high level of organochlorines pesticides has been reported from multi-environmental matrices. In this study, we investigated the occurrence, distributions and profile of selected OCP chemicals in surface soil samples (N=72) from four major cities of Nepal. Overall, the sum of total OCPs in soil ranged from 20 to 250ng/g with Biratnagar being the most polluted site in Nepal. DDTs and endosulfans were the most abundant OCP chemicals in soil samples...
September 30, 2016: Science of the Total Environment
Samira Yadegari, Askar Ghorbani, S Roohollah Miri, Mohammad Abdollahi, Mohsen Rostami
INTRODUCTION: Despite increasing the use of magnetic resonance imaging (MRI), cerebral venous sinus thrombosis (CVST) has remained an under-diagnosed condition. In this study, characteristics and frequency of various risk factors of CVST patients in a tertiary referral hospital were closely assessed. METHODS: Patients with an unequivocal diagnosis of CVST confirmed by MRI and magnetic resonance venography during 6 years of the study were included. All data from the onset of symptoms regarding clinical signs and symptoms, hospital admission, seasonal distribution, medical and drug history, thrombophilic profile, D-dimer, neuroimaging, cerebrospinal fluid findings, mortality, and outcome were collected and closely analyzed...
October 2016: Journal of Neurosciences in Rural Practice
Jun Wu, Jian Lu, Yongming Luo, Dongping Duan, Zhenhua Zhang, Xiaohu Wen, Xiuyun Min, Xiaoying Guo, Brian J Boman
The Qinghai-Tibet Plateau plays an important role in the ecological safety and human health of the surroundings due to its unique geographical position and function. Therefore, it is necessary to study the pollution status and potential risk in this area. This study summarizes the distribution of different organic pollutants in biota and environmental media of the Qinghai-Tibet Plateau. Moreover, it also pays attention to the potential health risks of these organic pollutants. Organochlorine pesticides (OCPs), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) were the most frequently detected in different matrices...
September 29, 2016: Environment International
Humaira Yasmeen, Abdul Qadir, Mehvish Mumtaz, Syed Ali Musstjab Akber Shah Eqani, Jabbir Hussain Syed, Adeel Mahmood, Nadia Jamil, Farva Nazar, Habib Ali, Muhammad Shafiq Ahmad, Zafar Iqbal Tanveer, Gan Zhang
The present study was conducted to highlight the existing level of ∑16 OCPs from human milk (n = 45) and blood serum (n = 40) of cotton picker women in Khanewal district, Southern Punjab, Pakistan. Source apportionment, congener specific analysis and risk surveillance of OCPs was reported from human milk and blood samples. Levels of OCPs (ng g(-1) ) in milk and blood serum samples ranged from 15.7 to 538.3 ng g(-1) and 16.4 to 747. 1 ng g(-1) , respectively and was found lower than previously published reports from other regions of the globe...
September 29, 2016: Environmental Toxicology and Chemistry
J Romano-Keeler, M A Azcarate-Peril, J-H Weitkamp, J C Slaughter, W H McDonald, S Meng, M S Latuga, J L Wynn
OBJECTIVE: Oral colostrum priming (OCP) after birth in preterm infants is associated with improved weight gain and modification of the oral immunomicrobial environment. We hypothesized that OCP would modify salivary immune peptides and the oral microbiota in preterm infants. STUDY DESIGN: We conducted a prospective, randomized clinical trial to determine the effects of OCP on salivary immune peptide representation in preterm infants (<32 weeks completed gestation at birth)...
September 29, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
Ángel Rodríguez-Hernández, María Camacho, Luis A Henríquez-Hernández, Luis D Boada, Pilar F Valerón, Annalisa Zaccaroni, Manuel Zumbado, Maira Almeida-González, Cristian Rial-Berriel, Octavio P Luzardo
Adverse effects of chemical contaminants associated with seafood counteract the undoubted benefits for the health of its valuable nutrients. So much so that many dietary guidelines recommend no more than one serving a week of fish and seafood. Although is estimated that aquaculture provides more than 50% of the fish and seafood consumed globally, few research studies have focused in the assessment of the intake of pollutants through aquaculture products. In this study we determined the levels of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and toxic elements (Pb, Cd, Ni, Al, As, and Hg) in a large sample of farmed and wild-caught seafood, and we estimated the intake of these contaminants in two hypothetical models of consumers: those consuming only farmed fish, and those consuming only wild fish...
September 23, 2016: Science of the Total Environment
Yang Shao, Shen Han, Jie Ouyang, Guosheng Yang, Weihua Liu, Lingling Ma, Min Luo, Diandou Xu
Contaminant concentrations, sources, seasonal variation, and eco-toxicological risk of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in surface water around Beijing from summer to winter in 2015 and 2016 were investigated. The concentrations of ∑OCPs and ∑PCBs ranged from 9.81 to 32.1 ng L(-1) (average 15.1 ± 7.78 ng L(-1)) and from 7.41 to 54.5 ng L(-1) (average 21.3 ± 1.87 ng L(-1)), respectively. Hexachlorocyclohexane (HCHs) were the dominated contamination both in aqueous and particulate phase...
September 23, 2016: Environmental Science and Pollution Research International
Suzanne Oparil
Heart disease, stroke, and kidney failure are leading causes of death worldwide, and hypertension is a significant risk factor for each. Hypertension is less common in women, compared to men, in those younger than 45 years of age. This trend is reversed in those 65 years and older. In the US between 2011-2014, the prevalence of hypertension in women and men by age group was 6% vs 8% (18-39 years), 30% vs 35% (40-59 years), and 67% vs 63% (60 years and over). Awareness, treatment, and control rates differ between genders with women being more aware of their diagnosis (85% vs 80%), more likely to take their medications (81% vs 71%) and more frequently having controlled hypertension (55% vs 49%)...
September 2016: Journal of Hypertension
Jun Li, Guo-Li Yuan, Ming-Zhe Wu, Yong Sun, Peng Han, Gen-Hou Wang
Glacier alluvial deposits record persistent organic pollutants (POPs) not only derived from the atmospheric deposition but also from the release of glacial melting. The evidence for melting glacier in the Tibetan Plateau (TP) as a secondary source of pollutants is introduced through investigating the concentration of organochlorine pesticides (OCPs) in four deposited profiles collected at the edge of the Changwengluozha glacier. Two concentration peaks were observed for dichlorodiphenyltrichloroethanes (DDTs) and hexachlorocyclohexanes (HCHs) in the past century...
September 15, 2016: Environmental Pollution
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