This study assessed the iron, zinc and copper status of primary school-attending children in Lagos. A sample of 200 primary School-attending children was randomly selected using a stratified 2 – stage sampling techni...This study assessed the iron, zinc and copper status of primary school-attending children in Lagos. A sample of 200 primary School-attending children was randomly selected using a stratified 2 – stage sampling technique. Data was collected in the 2 major seasons in Nigeria;Dry and Rainy seasons using dietary intake (24 hr dietary recall protocol) venipuncture blood samples, and a self-administered questionnaire. The data were analyzed using descriptive and inferential statistics. Among ages 5 - 8 years, the main dietary intake for iron was 10.66 ± 12.44 mg/d (106% of DRI), for zinc, 7.30 ± 7.39 mg/d (92% of DRI) and for copper, 1.55 ± 1.31 mg/d (390% of DRI). For ages 9 - 13 yrs, the mean intake of micronutrients showed that iron was 11.03 ± 12.72 mg/d (138% of DRI), 3inc was 8.44 ± 7.7 mg/d (105% of DRI) and copper was 3.75 ± 15.17 mg/d (536% of DRI). Biochemical results indicated that 19.8% of the subjects had inadequate serum iron, 21% and 32.1% were zinc and copper deficient respectively prevalence of anemia was 38.1% while iron deficiency anemia was 13.06% and iron deficiency was 34.6%. Dietary intakes did not provide right amounts of micronutrients to meet body requirements. There is the need to formulate and implement nutrition education programs to correct micronutrient deficiency among primary school-attending children in Lagos, Nigeria.展开更多
Metals such as iron,manganese,copper,and zinc are recognized as essential trace elements.These trace metals play critical roles in development,growth,and metabolism,participating in various metabolic processes by acti...Metals such as iron,manganese,copper,and zinc are recognized as essential trace elements.These trace metals play critical roles in development,growth,and metabolism,participating in various metabolic processes by acting as cofactors of enzymes or providing structural support to proteins.Deficiency or toxicity of these metals can impact human and animal health,giving rise to a number of metabolic and neurological disorders.Proper breakdown,absorption,and elimination of these trace metals is a tightly regulated process that requires crosstalk between the host and these micronutrients.The gut is a complex system that serves as the interface between these components,but other factors that contribute to this delicate interaction are not well understood.The gut is home to trillions of microorganisms and microbial genes(the gut microbiome)that can regulate the metabolism and transport of micronutrients and contribute to the bioavailability of trace metals through their assimilation from food sources or by competing with the host.Furthermore,deficiency or toxicity of these metals can modulate the gut microenvironment,including microbiota,nutrient availability,stress,and immunity.Thus,understanding the role of the gut microbiota in the metabolism of manganese,iron,copper,and zinc,as well as in heavy metal deficiencies and toxicities,and vice versa,may provide insight into developing improved or alternative therapeutic strategies to address emerging health concerns.This review describes the current understanding of how the gut microbiome and trace metals interact and affect host health,particularly in pigs.展开更多
A wetland with attractive plants hosting birds and other wildlife is an esthetically pleasing prospect that is gaining popularity as a way of stabilizing or remediating metalcontaminated soils and sediment（Weber and ...A wetland with attractive plants hosting birds and other wildlife is an esthetically pleasing prospect that is gaining popularity as a way of stabilizing or remediating metalcontaminated soils and sediment（Weber and Gagnon,2014;展开更多
文摘This study assessed the iron, zinc and copper status of primary school-attending children in Lagos. A sample of 200 primary School-attending children was randomly selected using a stratified 2 – stage sampling technique. Data was collected in the 2 major seasons in Nigeria;Dry and Rainy seasons using dietary intake (24 hr dietary recall protocol) venipuncture blood samples, and a self-administered questionnaire. The data were analyzed using descriptive and inferential statistics. Among ages 5 - 8 years, the main dietary intake for iron was 10.66 ± 12.44 mg/d (106% of DRI), for zinc, 7.30 ± 7.39 mg/d (92% of DRI) and for copper, 1.55 ± 1.31 mg/d (390% of DRI). For ages 9 - 13 yrs, the mean intake of micronutrients showed that iron was 11.03 ± 12.72 mg/d (138% of DRI), 3inc was 8.44 ± 7.7 mg/d (105% of DRI) and copper was 3.75 ± 15.17 mg/d (536% of DRI). Biochemical results indicated that 19.8% of the subjects had inadequate serum iron, 21% and 32.1% were zinc and copper deficient respectively prevalence of anemia was 38.1% while iron deficiency anemia was 13.06% and iron deficiency was 34.6%. Dietary intakes did not provide right amounts of micronutrients to meet body requirements. There is the need to formulate and implement nutrition education programs to correct micronutrient deficiency among primary school-attending children in Lagos, Nigeria.
基金Supported by the National Natural Science Foundation of China（30270924） Natural Science Foundation of Anhui Province （070411004） +1 种基金 the National Science Foundation of Education Department of Anhui Province（2006KJ184B） the Foundation of Provincial Key Lab of Biotic Environment and Ecological Safety in Anhui Province
基金supported by a grant from National Institute of Environmental Health Sciences(R01 ES024756)
文摘Metals such as iron,manganese,copper,and zinc are recognized as essential trace elements.These trace metals play critical roles in development,growth,and metabolism,participating in various metabolic processes by acting as cofactors of enzymes or providing structural support to proteins.Deficiency or toxicity of these metals can impact human and animal health,giving rise to a number of metabolic and neurological disorders.Proper breakdown,absorption,and elimination of these trace metals is a tightly regulated process that requires crosstalk between the host and these micronutrients.The gut is a complex system that serves as the interface between these components,but other factors that contribute to this delicate interaction are not well understood.The gut is home to trillions of microorganisms and microbial genes(the gut microbiome)that can regulate the metabolism and transport of micronutrients and contribute to the bioavailability of trace metals through their assimilation from food sources or by competing with the host.Furthermore,deficiency or toxicity of these metals can modulate the gut microenvironment,including microbiota,nutrient availability,stress,and immunity.Thus,understanding the role of the gut microbiota in the metabolism of manganese,iron,copper,and zinc,as well as in heavy metal deficiencies and toxicities,and vice versa,may provide insight into developing improved or alternative therapeutic strategies to address emerging health concerns.This review describes the current understanding of how the gut microbiome and trace metals interact and affect host health,particularly in pigs.
文摘A wetland with attractive plants hosting birds and other wildlife is an esthetically pleasing prospect that is gaining popularity as a way of stabilizing or remediating metalcontaminated soils and sediment（Weber and Gagnon,2014;
