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https://www.readbyqxmd.com/read/28823066/distribution-and-health-risk-assessment-to-heavy-metals-near-smelting-and-mining-areas-of-hezhang-china
#1
Meryem Briki, Yi Zhu, Yang Gao, Mengmeng Shao, Huaijian Ding, Hongbing Ji
Mining and smelting areas in Hezhang have generated a large amount of heavy metals into the environment. For that cause, an evaluative study on human exposure to heavy metals including Co, Ni, Cu, Zn, Cr, As, Cd, Pb, Sb, Bi, Be, and Hg in hair and urine was conducted for their concentrations and correlations. Daily exposure and non-carcinogenic and carcinogenic risk were estimated. Sixty-eight scalp hair and 66 urine samples were taken from participants of different ages (6-17, 18-40, 41-60, and ≥ 65 years) living in the vicinity of an agricultural soil near mine and smelting areas...
August 19, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28822940/effects-of-airborne-ammonium-and-nitrate-pollution-strongly-differ-in-peat-bogs-but-symbiotic-nitrogen-fixation-remains-unaffected
#2
Eva van den Elzen, Leon J L van den Berg, Bas van der Weijden, Christian Fritz, Lucy J Sheppard, Leon P M Lamers
Pristine bogs, peatlands in which vegetation is exclusively fed by rainwater (ombrotrophic), typically have a low atmospheric deposition of reactive nitrogen (N) (<0.5kgha(-1)y(-1)). An important additional N source is N2 fixation by symbiotic microorganisms (diazotrophs) in peat and mosses. Although the effects of increased total airborne N by anthropogenic emissions on bog vegetation are well documented, the important question remains how different N forms (ammonium, NH4(+), versus nitrate, NO3(-)) affect N cycling, as their relative contribution to the total load strongly varies among regions globally...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822939/short-term-effects-of-spring-prescribed-burning-on-the-understory-vegetation-of-a-pinushalepensis-forest-in-northeastern-spain
#3
Laura Fuentes, Beatriz Duguy, Daniel Nadal-Sala
Since the 1970s, fire regimes have been modified in the Northern Mediterranean region due to profound landscape changes mostly driven by socioeconomic factors, such as rural abandonment and large-scale plantations. Both fuel accumulation and the increasing vegetation spatial continuity, combined with the expansion of the wildland-urban interface, have enhanced fire risk and the occurrence of large wildfires. This situation will likely worsen under the projected aridity increase resulting from climate change...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822937/role-of-earthworms-mucus-in-vermicomposting-system-biodegradation-tests-based-on-humification-and-microbial-activity
#4
Kui Huang, Hui Xia
During vermicomposting, the organic wastes can be recycled into high-value products as mediated by earthworms through gut digestion, burrowing, casting and mucus excretion. However, to date, few studies have been done on the role of mucus in vermicomposting system compared to the effects of the other activities. Hence, this study investigated the potential role of earthworms' mucus in the decomposition and humification of organic wastes. For this, the mucus of Eisenia fetida was extracted and inoculated into three vermicomposting substrates using cow dung (CD), fruit and vegetable wastes (FVW), and sewage sludge (SS)...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822924/local-and-landscape-scale-land-cover-affects-microclimate-and-water-use-in-urban-gardens
#5
Brenda B Lin, Monika H Egerer, Heidi Liere, Shalene Jha, Peter Bichier, Stacy M Philpott
Urban gardens in Central California are highly vulnerable to the effects of climate change, experiencing both extended high heat periods as well as water restrictions because of severe drought conditions. This puts these critical community-based food production systems at risk as California is expected to experience increasing weather extremes. In agricultural systems, increased vegetation complexity, such as greater structure or biodiversity, can increase the resilience of food production systems from climate fluctuations...
August 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822756/differences-in-psychosocial-and-behavioral-variables-by-dietary-screening-tool-risk-category-in-older-adults
#6
Geoffrey W Greene, Ingrid Lofgren, Chelsea Paulin, Mary L Greaney, Phillip G Clark
BACKGROUND: The Dietary Screening Tool (DST) has been validated as a dietary screening instrument for older adults defining three categories of potential nutritional risk based on DST score cutoffs. Previous research has found that older adults classified as being "at risk" differed from those categorized as being "not at risk" for a limited number of health-related variables. The relationship between risk categories and a wide variety of variables has not yet been explored. This research will contribute to an increased understanding of clustering of multiple health concerns in this population...
August 17, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28822626/noninfective-endocarditis-in-microscopic-polyangiitis-report-of-a-case-with-a-successful-response-to-immunosuppressive-therapy
#7
Carolina Muñoz-Grajales, Juan C Chavarriaga, Javier D Márquez, Luis F Pinto
Although antineutrophil cytoplasmic antibody (ANCA) vasculitis has a variety of clinical manifestations, valvular compromise is not common, especially in anti-myeloperoxidase (anti-MPO) antibody (perinuclear [P]-ANCA) vasculitis. We report the case of a 38-year-old woman with ANCA-associated vasculitis who was diagnosed with valve vegetation, that resolved with immunosuppressive therapy.
August 16, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28822178/-study-on-associated-plants-and-spatial-distribution-pattern-of-dipsacus-asperoides-populations
#8
Da-Xia Chen, Si-Rong Yi, Xue Zhang, Yuan Pan, Guang-Lin Cui, Long-Yun Li, Ze Zhang
In order to understand the associated species and the population distribution pattern, the investigation of 32 sample plotsfrom the main natural distribution area in Dipsacus asperoides community was carried by quadrat method .The results showed that there were 156 species, which belong to 131 genera and 60 families. There were more species in the two dominant families, Asteraceae and Rosaceae. There were many types of associated, but most appeared at a low frequency. The vegetation type were mostly herbaceous and shrub species, which accounted for 77...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822137/studying-the-function-of-the-phosphorylated-pathway-of-serine-biosynthesis-in-arabidopsis-thaliana
#9
Stephan Krueger, Ruben M Benstein, Sabine Wulfert, Armand D Anoman, María Flores-Tornero, Roc Ros
Photorespiration is an essential pathway in photosynthetic organisms and is particularly important to detoxify and recycle 2-phosphoglycolate (2-PG), a by-product of oxygenic photosynthesis. The enzymes that catalyze the reactions in the photorespiratory core cycle and closely associated pathways have been identified; however, open questions remain concerning the metabolic network in which photorespiration is embedded. The amino acid serine represents one of the major intermediates in the photorespiratory pathway and photorespiration is thought to be the major source of serine in plants...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28821981/modifiable-factors-and-esophageal-cancer-a-systematic-review-of-published-meta-analyses
#10
REVIEW
Clara Castro, Bárbara Peleteiro, Nuno Lunet
There are marked differences in the etiology of the major histological types of esophageal cancer (EC)-squamous cell carcinomas (ESCC) and adenocarcinomas (EAC). This study aimed to summarize the current scientific knowledge on modifiable risk factors for EC, by histological type, through a systematic review of meta-analyses referenced in PubMed and ISI Web of Knowledge. We identified 100 meta-analyses on risk factors for ESCC (n = 54), EAC (n = 43), or EC (n = 51). ESCC risk significantly increased with alcohol and maté drinking, smoking, red and processed meat consumption and human papillomavirus infection, while it was negatively associated with body mass index and consumption of fruit, vegetables, white meat, folate, and some carotenoids...
August 18, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28821870/enhanced-silicon-availability-leads-to-increased-methane-production-nutrient-and-toxicant-mobility-in-peatlands
#11
Gloria-Maria Susanne Reithmaier, Klaus-Holger Knorr, Sebastian Arnhold, Britta Planer-Friedrich, Jörg Schaller
Peatlands perform important ecosystem functions, such as carbon storage and nutrient retention, which are affected, among other factors, by vegetation and peat decomposition. The availability of silicon (Si) in peatlands differs strongly, ranging from <1 to >25 mg L(-1). Since decomposition of organic material was recently shown to be accelerated by Si, the aim of this study was to examine how Si influences decomposition of carbon and nutrient and toxicant mobilization in peatlands. We selected a fen site in Northern Bavaria with naturally bioavailable Si pore water concentrations of 5 mg/L and conducted a Si addition experiment...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821819/dietary-factors-and-polymorphisms-in-vitamin-d-metabolism-genes-the-risk-and-prognosis-of-colorectal-cancer-in-northeast-china
#12
Chen Gong, Zhiping Long, Yanming Yu, Lin Zhu, Jingshen Tian, Shuo Li, Jing Li, Hongyuan Yu, Qiang Chi, Daxun Piao, Fan Wang, Yashuang Zhao, Binbin Cui
CYP24A1 and CYP27B1 are critical genes determining 1α,25(OH)2D3 concentration and impacting on carcinogenesis. A case-control study including 528 colorectal cancer (CRC) patients and 605 cancer-free controls and a follow-up study with 317 cases were conducted in northeast China. Genotypes were tested by TaqMan Genotyping Assays. Individuals carrying the GG genotype of CYP27B1 G > T (rs10877012) exhibited decreased CRC risk compared with those with the TT genotype (ORadjusted (ORadj) = 0.57, 95% Confidence Interval (CI) = 0...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821759/inconsistent-estimates-of-forest-cover-change-in-china-between-2000-and-2013-from-multiple-datasets-differences-in-parameters-spatial-resolution-and-definitions
#13
Yan Li, Damien Sulla-Menashe, Safa Motesharrei, Xiao-Peng Song, Eugenia Kalnay, Qing Ying, Shuangcheng Li, Zongwen Ma
The Chinese National Forest Inventory (NFI) has reported increased forest coverage in China since 2000, however, the new satellite-based dataset Global Forest Change (GFC) finds decreased forest coverage. In this study, four satellite datasets are used to investigate this discrepancy in forest cover change estimates in China between 2000 and 2013: forest cover change estimated from MODIS Normalized Burn Ratio (NBR), existing MODIS Land Cover (LC) and Vegetation Continuous Fields (VCF) products, and the Landsat-based GFC...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821448/cognitive-impairment-and-gene-expression-alterations-in-a-rodent-model-of-binge-eating-disorder
#14
A Chawla, Z A Cordner, G Boersma, T H Moran
Binge eating disorder (BED) is defined as recurrent, distressing over-consumption of palatable food (PF) in a short time period. Clinical studies suggest that individuals with BED may have impairments in cognitive processes, executive functioning, impulse control, and decision-making, which may play a role in sustaining binge eating behavior. These clinical reports, however, are limited and often conflicting. In this study, we used a limited access rat model of binge-like behavior in order to further explore the effects of binge eating on cognition...
August 15, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28821405/benzyl-isothiocyanate-ameliorates-acetaldehyde-induced-cytotoxicity-by-enhancing-aldehyde-dehydrogenase-activity-in-murine-hepatoma-hepa1c1c7-cells
#15
Yujia Liu, Momoko Yamanaka, Naomi Abe-Kanoh, Xiaoyang Liu, Beiwei Zhu, Shintaro Munemasa, Toshiyuki Nakamura, Yoshiyuki Murata, Yoshimasa Nakamura
In the present study, we assessed benzyl isothiocyanate (BITC), an organosulfur compound from cruciferous vegetables, as a potential inducer of aldehyde dehydrogenase (ALDH) activity using murine hepatoma Hepa1c1c7 cells. BITC was shown to enhance not only the total ALDH activity, but also the ALDH activity of the cytosolic/microsomal and mitochondrial fraction. BITC also significantly increased the gene and protein expression of ALDH1A1, ALDH2 and ALDH3A1 in a concentrationdependent manner. Simultaneously, the gene expression of phase 2 drugmetabolizing enzymes, such as NAD(P)H: quinone oxidoreductase 1 and heme oxygenase-1, was increased by the BITC treatment...
August 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28820555/satellite-atrial-septal-vegetations-secondary-to-mitral-valve-endocarditis
#16
Germán Cedielq, Marta Guillen Marzo, Ramón de Castro Aritmendiz, Jairo Toro Gil, Alfredo Bardají
Infective endocarditis is a challenging clinical problem with a high rate of mortality. Early recognition of this disease, and especially its complications, remain a critical task for the cardiologist. In this scenario, atrial endocarditis is a rare and sometimes unrecognized complication of mitral valve endocarditis. Herein is reported a clinical case that shows how a satellite vegetation in the atrial septum can be produced in a patient with mitral regurgitation secondary to mitral valve endocarditis. Video 1: Transthoracic echocardiography showing the presence of vegetation in the posterior mitral leaflet, severe secondary mitral regurgitation, and satellite vegetation in the atrial septum...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28820539/a-survey-of-non-communicable-diseases-and-their-risk-factors-among-university-employees-a-single-institutional-study
#17
Emmanuel I Agaba, Maxwell O Akanbi, Patricia A Agaba, Amaka N Ocheke, Zumnan M Gimba, Steve Daniyam, Edith N Okeke
BACKGROUND: The incidence of non-communicable diseases (NCDs) is rising globally, with its attendant morbidity and mortality, especially in developing countries. This study evaluated the prevalence of NCDs and their risk factors among members of a university community. METHODS: All employees of the university were invited to the University health clinic for screening, using the World Health Organisation's STEPwise approach to NCDs. RESULTS: A total of 883 (521; 59...
August 15, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/28820277/natural-phospholipids-occurrence-biosynthesis-separation-identification-and-beneficial-health-aspects
#18
Abdelmoneim H Ali, Xiaoqiang Zou, Sherif M Abed, Sameh A Korma, Qingzhe Jin, Xingguo Wang
During the last years, phospholipids (PLs) have attracted great attention because of their crucial roles in providing nutritional values, technological and medical applications. There are considerable proofs that PLs have unique nutritional benefits on human health, such as reducing cholesterol absorption, improving liver functions, and decreasing the risk of cardiovascular diseases. PLs are the main structural lipid components of cell and organelle membranes in all living organisms, and therefore, they occur in all organisms and the derived food products...
August 18, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28820080/diet-quality-and-its-implications-on-the-cardio-metabolic-physical-and-general-health-of-older-men-the-concord-health-and-ageing-in-men-project-champ
#19
Rosilene V Ribeiro, Vasant Hirani, Alistair M Senior, Alison K Gosby, Robert G Cumming, Fiona M Blyth, Vasi Naganathan, Louise M Waite, David J Handelsman, Hal Kendig, Markus J Seibel, Stephen J Simpson, Fiona Stanaway, Margaret Allman-Farinelli, David G Le Couteur
The revised Dietary Guideline Index (DGI-2013) scores individuals' diets according to their compliance with the Australian Dietary Guideline (ADG). This cross-sectional study assesses the diet quality of 794 community-dwelling men aged 74 years and older, living in Sydney, Australia participating in the Concord Health and Ageing in Men Project; it also examines sociodemographic and lifestyle factors associated with DGI-2013 scores; it studies associations between DGI-2103 scores and the following measures: homoeostasis model assessment - insulin resistance, LDL-cholesterol, HDL-cholesterol, TAG, blood pressure, waist:hip ratio, BMI, number of co-morbidities and medications and frailty status while also accounting for the effect of ethnicity in these relationships...
July 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28820048/direct-determination-of-3-chloropropanol-esters-in-edible-vegetable-oils-using-high-resolution-mass-spectrometry-hrms-orbitrap
#20
Giulia Graziani, Anna Gaspari, Donato Chianese, Lanfranco Conte, Alberto Ritieni
A series of refined edible oils derived from mixed seeds, peanuts, corn, sunflower and palm, obtained from the local supermarket were analyzed for their content of 3-MCPD esters. A direct analytical method for the determination of 3-chloro-1,2-propanediol fatty acid esters (3-MCPD esters) was applied to investigate the major MCPD esters found in common edible oils; in particular seven types of monoesters and eleven types of diesters were detected. The LODs for monoesters and diesters of 3-MCPD were in the range of 0...
August 18, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
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