The Experts below are selected from a list of 7110 Experts worldwide ranked by ideXlab platform
Bo-han Liao - One of the best experts on this subject based on the ideXlab platform.
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Accumulation of Heavy Metals in Vegetable Species Planted in Contaminated Soils and the Health Risk Assessment
International Journal of Environmental Research and Public Health, 2016Co-Authors: Hang Zhou, Wen-tao Yang, Jiao-feng Gu, Wen-lei Wang, Jia-ling Zou, Pei-qin Peng, Tao Tian, Xin Zhou, Li Liu-he, Bo-han LiaoAbstract:The objectives of the present study were to investigate heavy metal accumulation in 22 vegetable species and to assess the human health risks of vegetable consumption. Six vegetable types were cultivated on farmland contaminated with heavy metals (Pb, Cd, Cu, Zn, and As). The target hazard quotient (THQ) method was used to assess the human health risks posed by heavy metals through vegetable consumption. Clear differences were found in the concentrations of heavy metals in edible parts of the different Vegetables. The concentrations of heavy metals decreased in the sequence as leafy Vegetables > stalk Vegetables/Root Vegetables/solanaceous Vegetables > legume Vegetables/melon Vegetables. The ability of leafy Vegetables to uptake and accumulate heavy metals was the highest, and that of melon Vegetables was the lowest. This indicated that the low accumulators (melon Vegetables) were suitable for being planted on contaminated soil, while the high accumulators (leafy Vegetables) were unsuitable. In Shizhuyuan area, China, the total THQ values of adults and children through consumption of Vegetables were 4.12 and 5.41, respectively, suggesting that the residents may be facing health risks due to vegetable consumption, and that children were vulnerable to the adverse effects of heavy metal ingestion.
Nasir Ahmad Saeed - One of the best experts on this subject based on the ideXlab platform.
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Excessive use of nitrogenous fertilizers: an unawareness causing serious threats to environment and human health
Environmental Science and Pollution Research, 2017Co-Authors: Moddassir Ahmed, Zahid Mukhtar, Muhammad Rauf, Nasir Ahmad SaeedAbstract:Farmers occasionally need to add nitrogen fertilizer to their farms and gardens to make available just the precise nutrients for their plants’ growth. The applications of inorganic nitrogen fertilizers to various crops have been continuously increasing since last many decades globally. Although nitrogen fertilizer contributes substantially to yield enhancement, but excessive use of this manure has posed serious threats to environment and human health. Rate of nitrogen fertilizers application has a close relationship with nitrate accumulation in surrounding environment, groundwater, as well as leafy and Root Vegetables. Consumption of diets having high nitrate contents has contributed to endogenous nitrosation, which could lead to thyroid condition, various kinds of human cancers, neural tube defects (during fetus development), and diabetes. In this short review, the authors have tried to create awareness among general public, farming community, health practitioners, and agricultural scientists for the risk involved with excessive use of nitrogen fertilizers to human health. Carcinogenic activity and other adverse effects of N-nitroso compounds might be prevented by consuming vitamin C and antioxidants containing fruits and Vegetables.
Hang Zhou - One of the best experts on this subject based on the ideXlab platform.
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Accumulation of Heavy Metals in Vegetable Species Planted in Contaminated Soils and the Health Risk Assessment
International Journal of Environmental Research and Public Health, 2016Co-Authors: Hang Zhou, Wen-tao Yang, Jiao-feng Gu, Wen-lei Wang, Jia-ling Zou, Pei-qin Peng, Tao Tian, Xin Zhou, Li Liu-he, Bo-han LiaoAbstract:The objectives of the present study were to investigate heavy metal accumulation in 22 vegetable species and to assess the human health risks of vegetable consumption. Six vegetable types were cultivated on farmland contaminated with heavy metals (Pb, Cd, Cu, Zn, and As). The target hazard quotient (THQ) method was used to assess the human health risks posed by heavy metals through vegetable consumption. Clear differences were found in the concentrations of heavy metals in edible parts of the different Vegetables. The concentrations of heavy metals decreased in the sequence as leafy Vegetables > stalk Vegetables/Root Vegetables/solanaceous Vegetables > legume Vegetables/melon Vegetables. The ability of leafy Vegetables to uptake and accumulate heavy metals was the highest, and that of melon Vegetables was the lowest. This indicated that the low accumulators (melon Vegetables) were suitable for being planted on contaminated soil, while the high accumulators (leafy Vegetables) were unsuitable. In Shizhuyuan area, China, the total THQ values of adults and children through consumption of Vegetables were 4.12 and 5.41, respectively, suggesting that the residents may be facing health risks due to vegetable consumption, and that children were vulnerable to the adverse effects of heavy metal ingestion.
Moddassir Ahmed - One of the best experts on this subject based on the ideXlab platform.
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Excessive use of nitrogenous fertilizers: an unawareness causing serious threats to environment and human health
Environmental Science and Pollution Research, 2017Co-Authors: Moddassir Ahmed, Zahid Mukhtar, Muhammad Rauf, Nasir Ahmad SaeedAbstract:Farmers occasionally need to add nitrogen fertilizer to their farms and gardens to make available just the precise nutrients for their plants’ growth. The applications of inorganic nitrogen fertilizers to various crops have been continuously increasing since last many decades globally. Although nitrogen fertilizer contributes substantially to yield enhancement, but excessive use of this manure has posed serious threats to environment and human health. Rate of nitrogen fertilizers application has a close relationship with nitrate accumulation in surrounding environment, groundwater, as well as leafy and Root Vegetables. Consumption of diets having high nitrate contents has contributed to endogenous nitrosation, which could lead to thyroid condition, various kinds of human cancers, neural tube defects (during fetus development), and diabetes. In this short review, the authors have tried to create awareness among general public, farming community, health practitioners, and agricultural scientists for the risk involved with excessive use of nitrogen fertilizers to human health. Carcinogenic activity and other adverse effects of N-nitroso compounds might be prevented by consuming vitamin C and antioxidants containing fruits and Vegetables.
Rong Tsao - One of the best experts on this subject based on the ideXlab platform.
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bioaccessibility bioavailability and anti inflammatory effects of anthocyanins from purple Root Vegetables using mono and co culture cell models
Molecular Nutrition & Food Research, 2017Co-Authors: Hua Zhang, Yousef I Hassan, Justin B Renaud, Ronghua Liu, Cheng Yang, Yong Sun, Rong TsaoAbstract:cope Immune-inflammatory, signalling and metabolic effects are the main pillars for bioactivity of anthocyanins derived from highly pigmented Root Vegetables. This study aims to assess the bioaccessibility and bioavailability of purple carrot and potato derived anthocyanins and the molecular mechanisms of their ability to ameliorate cellular inflammation in a mono- and co-culture cell models. Methods and Results An in vitro gastrointestinal model was used and demonstrated bioaccessibility of 44.62% and 71.8% for anthocyanins of purple carrot and potato, respectively. These accessible anthocyanins significantly inhibited cellular inflammation in Caco-2 cells. Intact cyanidin glycoside or petunidin glycoside (respectively from carrots and potatoes) were transported across a transmembrane cell model and detected by LC-MS/MS. Computational docking and glucose uptake analyses suggested uptake of anthocyanins was mediated by hexose transporters. Subsequent experiment using an inflamed Caco-2 BBe1/THP-1 co-culture cell model showed these transported anthocyanins inhibited IL-8 and TNF-α secretion, and expression of pro-inflammatory cytokines by blocking NF-κB, and MAPK mediated inflammatory cellular signalling cascades, but with varying degrees due to structural features. Conclusion Anthocyanins from purple carrots and potatoes possess a promising anti-inflammatory effect in model gut system. They can be absorbed and act differently but are in general beneficial for inflammation-mediated diseases. This article is protected by copyright. All rights reserved
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Anthocyanin-rich phenolic extracts of purple Root Vegetables inhibit pro-inflammatory cytokines induced by H2O2 and enhance antioxidant enzyme activities in Caco-2 cells
Journal of Functional Foods, 2016Co-Authors: Hua Zhang, Rong TsaoAbstract:Abstract Highly pigmented Root Vegetables are ideal sources of phytochemical antioxidants particularly anthocyanins. The objective of this study was to characterise the phenolic composition in a purple variety of carrot and potato by examining the aglycone profiles and their antioxidative stress activity. Cyanidin and petunidin were the dominant phenolics among 11 identified aglycones in carrot and potato, respectively. The anthocyanin-rich phenolic extracts not only showed strong antioxidant activities by direct radical scavenging, but more importantly they significantly reduced H 2 O 2 -induced interleukins (IL)-1β, IL-6, IL-8 and tumour necrosis factor (TNF)-α in Caco-2 cells. In addition, the extracts were able to restore the intrinsic antioxidant defences as seen in significantly elevated antioxidant enzyme activities and glutathione concentration. These results suggest that purple varieties of carrots and potatoes rich in anthocyanins can ameliorate oxidative stress mediated intestinal inflammatory responses, leading to restoration of the impaired redox balance, ultimately improved health.
