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Wang K, Wang R, Fang Y, Liu C, Zhu H, Rong X, Zhu B. Exploration of a new approach for detection of nitrite with hydroxyl radical fluorescence probe in aqueous solutions. Talanta 2024; 275:126118. [PMID: 38688087 DOI: 10.1016/j.talanta.2024.126118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/18/2024] [Accepted: 04/14/2024] [Indexed: 05/02/2024]
Abstract
Nitrite (NO2-) has been widely recognized by the international community as an important substance affecting water quality safety and human health, and the detection of NO2- has always been a hot topic for researchers. Fluorescent probe method is an emerging and ideal way for detecting NO2-. Due to the high dependence of the reported reactive NO2- fluorescent probes on strong acidic systems, using the idea of photochemistry, a fluorescence analysis method for detecting NO2- was proposed in this work to change the necessity of strong acidic solutions in probe detection process. A 365 nm UV-LED lamp was used to irradiate NO2- in aqueous solution to convert it into hydroxyl radicals (HO·), and capture the photodegradation product of NO2- using coumarin-3-carboxylic acid as probe 3-CCA that can react with HO· to generate only one type of strong fluorescent substance. This probe has excellent photostability, selectivity, and anti-interference ability, and can realize the quantitative detection of NO2- (0-15 μM) in pure aqueous solution with pH of 7.4. In addition, its application in actual water samples is also satisfactory, with a recovery rate of (85.91 %-107.30 %). Importantly, we hope that this photolysis strategy can open up the novel thinking to develop suitable fluorescent probes for the analysis and detection of some hardly detected analytes.
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Affiliation(s)
- Kun Wang
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Rui Wang
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Yikun Fang
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Caiyun Liu
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China.
| | - Hanchuang Zhu
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Xiaodi Rong
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Baocun Zhu
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China.
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2
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An J, Sun L, Liu M, Dai R, Ge G, Wang Z, Jia Y. Influences of Growth Stage and Ensiling Time on Fermentation Characteristics, Nitrite, and Bacterial Communities during Ensiling of Alfalfa. PLANTS (BASEL, SWITZERLAND) 2023; 13:84. [PMID: 38202392 PMCID: PMC10780930 DOI: 10.3390/plants13010084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/05/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024]
Abstract
This study examined the impacts of growth stage and ensiling duration on the fermentation characteristics, nitrite content, and bacterial communities during the ensiling of alfalfa. Harvested alfalfa was divided into two groups: vegetative growth stage (VG) and late budding stage (LB). The fresh alfalfa underwent wilting until reaching approximately 65% moisture content, followed by natural fermentation. The experiment followed a completely randomized design, with samples collected after the wilting of alfalfa raw materials (MR) and on days 1, 3, 5, 7, 15, 30, and 60 of fermentation. The growth stage significantly influenced the chemical composition of alfalfa, with crude protein content being significantly higher in the vegetative growth stage alfalfa compared to that in the late budding stage (p < 0.05). Soluble carbohydrates, neutral detergent fiber, and acid detergent fiber content were significantly lower in the vegetative growth stage compared to the late budding stage (p < 0.05). Nitrite content, nitrate content, nitrite reductase activity, and nitrate reductase activity were all significantly higher in the vegetative growth stage compared to the late budding stage (p < 0.05). In terms of fermentation parameters, silage from the late budding stage exhibited superior characteristics compared to that from the vegetative growth stage. Compared to the alfalfa silage during the vegetative growth stage, the late budding stage group exhibited a higher lactate content and lower pH level. Notably, butyric acid was only detected in the silage from the vegetative growth stage group. Throughout the ensiling process, nitrite content, nitrate levels, nitrite reductase activity, and nitrate reductase activity decreased in both treatment groups. The dominant lactic acid bacteria differed between the two groups, with Enterococcus being predominant in vegetative growth stage alfalfa silage, and Weissella being predominant in late budding stage silage, transitioning to Lactiplantibacillus in the later stages of fermentation. On the 3rd day of silage fermentation, the vegetative growth stage group exhibited the highest abundance of Enterococcus, which subsequently decreased to its lowest level on the 15th day. Correlation analysis revealed that lactic acid bacteria, including Limosilactobacillus, Levilactobacillus, Loigolactobacillus, Pediococcus, Lactiplantibacillus, and Weissella, played a key role in nitrite and nitrate degradation in alfalfa silage. The presence of nitrite may be linked to Erwinia, unclassified_o__Enterobacterales, Pantoea, Exiguobacterium, Enterobacter, and Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium.
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Affiliation(s)
- Jiangbo An
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019, China; (J.A.); (M.L.); (R.D.); (G.G.); (Z.W.)
- Key Laboratory of Grassland Resources, Ministry of Education, Inner Mongolia Agricultural University, Hohhot 010019, China
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China
| | - Lin Sun
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China;
| | - Mingjian Liu
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019, China; (J.A.); (M.L.); (R.D.); (G.G.); (Z.W.)
- Key Laboratory of Grassland Resources, Ministry of Education, Inner Mongolia Agricultural University, Hohhot 010019, China
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China
| | - Rui Dai
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019, China; (J.A.); (M.L.); (R.D.); (G.G.); (Z.W.)
- Key Laboratory of Grassland Resources, Ministry of Education, Inner Mongolia Agricultural University, Hohhot 010019, China
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China
| | - Gentu Ge
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019, China; (J.A.); (M.L.); (R.D.); (G.G.); (Z.W.)
- Key Laboratory of Grassland Resources, Ministry of Education, Inner Mongolia Agricultural University, Hohhot 010019, China
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China
| | - Zhijun Wang
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019, China; (J.A.); (M.L.); (R.D.); (G.G.); (Z.W.)
- Key Laboratory of Grassland Resources, Ministry of Education, Inner Mongolia Agricultural University, Hohhot 010019, China
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China
| | - Yushan Jia
- Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019, China; (J.A.); (M.L.); (R.D.); (G.G.); (Z.W.)
- Key Laboratory of Grassland Resources, Ministry of Education, Inner Mongolia Agricultural University, Hohhot 010019, China
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China
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Mihai MA, Spataru T, Somacescu S, Moga OG, Preda L, Florea M, Kuncser A, Spataru N. Nitrite anodic oxidation at Ni(II)/Ni(III)-decorated mesoporous SnO 2 and its analytical applications. Analyst 2023; 148:6028-6035. [PMID: 37888977 DOI: 10.1039/d3an01249b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Hydrothermally formed mesoporous SnO2 was used as a support for nickel chemical deposition and, after subsequent thermal treatment, a high specific surface area (36 m2 g-1) Ni/SnO2 material was obtained. XPS analysis has shown that in the Sn 3d region the spectrum is similar to that of pristine SnO2, whereas Ni species are present on the surface as NiO, Ni2O3 and Ni(OH)2. Mixing Ni/SnO2 with a small amount of Black Pearls (BP) leads to a significant enhancement of the resulting Ni/SnO2-BP composite activity for nitrite anodic oxidation, presumably due to the higher surface area (115 m2 g-1), to better electrical conductivity and to a certain contribution of the BP to an increase in surface density of the active sites. Ni/SnO2-BP also outperforms pristine BP (in terms of Tafel slopes and electron-transfer rates), most likely due to the fact that the Ni(II)/Ni(III) couple can act as an electrocatalyst for nitrite oxidation. A voltammetric method is proposed for the determination of nitrite, over a concentration range of three orders of magnitude (0.05 to 20 mM), with good reproducibility, high stability and excellent sensitivity. The high upper limit of the dynamic range of the analytically useful response might provide a basis for the reliable quantification of nitrite in wastewater.
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Affiliation(s)
- Marius Alexandru Mihai
- Institute of Physical Chemistry "Ilie Murgulescu", 202 Spl. Independenţei, 060021, Bucharest, Romania.
| | - Tanta Spataru
- Institute of Physical Chemistry "Ilie Murgulescu", 202 Spl. Independenţei, 060021, Bucharest, Romania.
| | - Simona Somacescu
- Institute of Physical Chemistry "Ilie Murgulescu", 202 Spl. Independenţei, 060021, Bucharest, Romania.
| | - Olivia Georgeta Moga
- Institute of Physical Chemistry "Ilie Murgulescu", 202 Spl. Independenţei, 060021, Bucharest, Romania.
| | - Loredana Preda
- Institute of Physical Chemistry "Ilie Murgulescu", 202 Spl. Independenţei, 060021, Bucharest, Romania.
| | - Mihaela Florea
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Andrei Kuncser
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Nicolae Spataru
- Institute of Physical Chemistry "Ilie Murgulescu", 202 Spl. Independenţei, 060021, Bucharest, Romania.
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Clemmensen PJ, Brix N, Schullehner J, Ernst A, Harrits Lunddorf LL, Bjerregaard AA, Halldorsson TI, Olsen SF, Hansen B, Stayner LT, Kolstad HA, Sigsgaard T, Ramlau-Hansen CH. Prenatal exposure to nitrosatable drugs and timing of puberty in sons and daughters: A nationwide cohort study. Int J Hyg Environ Health 2023; 254:114271. [PMID: 37820420 DOI: 10.1016/j.ijheh.2023.114271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/12/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND N-nitroso compounds (NOCs) can be formed by endogenous reactions between nitrosatable drugs and nitrite. Animal studies have found that several NOCs are teratogenic, and epidemiological studies report associations between prenatal exposure to nitrosatable drugs and adverse birth outcomes. It is unknown whether prenatal exposure to nitrosatable drugs is harmful to the child's reproductive health, including pubertal development. OBJECTIVES We investigated whether prenatal exposure to nitrosatable drugs was associated with timing of puberty and whether nitrate, nitrite and antioxidant intake modified any association. METHODS The population-based Danish National Birth Cohort (DNBC) Puberty Cohort, which includes 15,819 children, was used to investigate the association between prenatal exposure to nitrosatable drugs and timing of puberty. Around gestational week 11 and gestational week 18, mothers provided information about drug use during pregnancy. The children's self-reported information on onset of pubertal milestones was collected every six months from 11 years of age and throughout puberty. To investigate potential effect modification by nitrite, nitrate and antioxidant intake, information on these factors was obtained from a food frequency questionnaire completed by the mothers in gestational week 25, and information on nitrate concentration in maternal drinking water at her residential address was obtained from monitoring data from public waterworks. Data were analysed using a multivariable regression model for interval-censored data estimating difference in months in timing of puberty between exposure groups. RESULTS A total of 2,715 children were prenatally exposed to nitrosatable drugs. We did not find an association between prenatal exposure to nitrosatable drugs and timing of puberty. This finding was supported by null-findings in the following sub-analyses investigating: 1. subtypes of nitrosatable drugs (secondary and tertiary amines and amides), 2. dose-dependency (duration of drug intake), 3. effect modification by maternal intake of nitrate, nitrite, and antioxidants. 4. confounding by indication. CONCLUSIONS Prenatal exposure to nitrosatable drugs was not associated with timing of puberty. Nitrosatable drugs are commonly used drugs in pregnancy, and further research is needed to allow firm conclusions on the potential effect of prenatal exposure to nitrosatable drugs on the child's reproductive health.
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Affiliation(s)
| | - Nis Brix
- Department of Public Health, Aarhus University, Aarhus, Denmark; Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
| | - Jörg Schullehner
- Department of Public Health, Aarhus University, Aarhus, Denmark; Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
| | - Andreas Ernst
- Department of Public Health, Aarhus University, Aarhus, Denmark; Department of Urology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Anne Ahrendt Bjerregaard
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark; Center for Clinical Research and Prevention, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Thorhallur Ingi Halldorsson
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark; Faculty of Food Science and Nutrition, School of Health Sciences, University of Iceland, Iceland
| | - Sjurdur Frodi Olsen
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark; Section of Epidemiology, Institute of Public Health, University of Copenhagen, Denmark
| | | | - Leslie Thomas Stayner
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, United States
| | - Henrik Albert Kolstad
- Department of Occupational Medicine, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Torben Sigsgaard
- Department of Public Health, Aarhus University, Aarhus, Denmark; Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark; Cirrau -Centre for Integrated Register-based Research at Aarhus University, Aarhus, Denmark
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5
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Clemmensen PJ, Schullehner J, Brix N, Sigsgaard T, Stayner LT, Kolstad HA, Ramlau-Hansen CH. Prenatal Exposure to Nitrate in Drinking Water and Adverse Health Outcomes in the Offspring: a Review of Current Epidemiological Research. Curr Environ Health Rep 2023; 10:250-263. [PMID: 37453984 PMCID: PMC10504112 DOI: 10.1007/s40572-023-00404-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2023] [Indexed: 07/18/2023]
Abstract
PURPOSE OF REVIEW Recently, several epidemiological studies have investigated whether prenatal exposure to nitrate from drinking water may be harmful to the fetus, even at nitrate levels below the current World Health Organization drinking water standard. The purpose of this review was to give an overview of the newest knowledge on potential health effects of prenatal exposure to nitrate. RECENT FINDINGS We included 13 epidemiological studies conducted since 2017. Nine studies investigated outcomes appearing around birth, and four studies investigated health outcomes appearing in childhood and young adulthood. The reviewed studies showed some indications of higher risk of preterm delivery, lower birth weight, birth defects, and childhood cancer related to prenatal exposure to nitrate. However, the numbers of studies for each outcome were sparse, and some of the results were conflicting. We suggest that there is a need for additional studies and particularly for studies that include information on water consumption patterns, intake of nitrate from diet, and intake of nitrosatable drugs.
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Affiliation(s)
| | - Jörg Schullehner
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
| | - Nis Brix
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
| | - Torben Sigsgaard
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
- Cirrau - Centre for Integrated Register-based Research at Aarhus University, Aarhus, Denmark
| | - Leslie Thomas Stayner
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, IL, USA
| | - Henrik Albert Kolstad
- Department of Occupational Medicine, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Homem RV, Arisseto-Bragotto AP, Rodrigues E, Cladera-Olivera F. Theoretical estimation of nitrates and nitrites intake from food additives by the Brazilian population. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:1147-1163. [PMID: 37549245 DOI: 10.1080/19440049.2023.2240439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 08/09/2023]
Abstract
Sodium and potassium nitrates and nitrites are preservatives widely used in meat products and some cheese. They are important toxicologically but there is a lack of data on the exposure of the Brazilian population to these additives. This study aimed to verify the frequency of the use of nitrates and nitrites in processed foods in Brazil and to estimate their theoretical intake by the Brazilian population. A database was built of supermarket products containing nitrates, nitrites, and antioxidants. The Theoretical Maximum Daily Intake (TMDI) and TMDI balanced by the prevalence of food consumption (TMDI BPFC) were determined using consumption data from the Household Budget Surveys (2008/2009 and 2017/2018). The TMDI for nitrates and nitrites was lower than the Acceptable Daily Intake (ADI) for all population groups. Considering the prevalence of food consumption (consumers only), the TMDI BPFC values were lower than the ADI for nitrates (between 0.4 and 0.9 times the ADI) but very high values were obtained for nitrites (between 10 and 24 times the ADI). Our results suggest that the Brazilian population, especially some population groups, may be consuming unsafe amounts of nitrite. As a consequence, their health may be at risk.
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Affiliation(s)
- Raísa Vieira Homem
- Department of Food Science, Federal University of Rio Grande do Sul - Institute of Food Science and Technology, Porto Alegre, RS, Brazil
| | - Adriana Pavesi Arisseto-Bragotto
- Department of Food Science and Nutrition, Faculty of Food Engineering, FEA UNICAMP Rua Monteiro Lobato, State University of Campinas, Campinas, SP, Brazil
| | - Eliseu Rodrigues
- Department of Food Science, Federal University of Rio Grande do Sul - Institute of Food Science and Technology, Porto Alegre, RS, Brazil
| | - Florencia Cladera-Olivera
- Department of Food Science, Federal University of Rio Grande do Sul - Institute of Food Science and Technology, Porto Alegre, RS, Brazil
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Vranić D, Milešević J, Trbović D, Gurinović M, Korićanac V, Zeković M, Petrović Z, Ranković S, Milićević D. Exposure to Phosphates and Nitrites through Meat Products: Estimation of the Potential Risk to Pregnant Women. Nutrients 2023; 15:2777. [PMID: 37375681 DOI: 10.3390/nu15122777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/01/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Diet during pregnancy is one of the most important nutritional challenges associated with some risks for the mother and the fetus. For the first time, the study aims to estimate long-term (2018-2022) exposure to nitrate and phosphates in Serbian pregnant women, based on individual consumption data and accurate values measured in frequently consumed meat products. For this purpose, seven types of meat products, consisting of 3047 and 1943 samples, were collected from retail markets across Serbia, to analyze nitrites and phosphorus content, respectively. These data were combined with meat product consumption data from the Serbian National Food Consumption Survey to assess dietary intake of nitrites and phosphate. The results were compared with the acceptable daily intake (ADI) proposed by the European Food Safety Authority. The average dietary exposure (EDI) to phosphorus ranged from 0.733 mg/kg bw/day (liver sausage and pate) to 2.441 mg/kg bw/day (finely minced cooked sausages). Considering nitrite intake, the major sources were bacon (0.030 mg/kg bw/day) and coarsely minced cooked sausages (0.0189 mg/kg bw/day). In our study, average nitrite and phosphorus exposure in the Serbian pregnant women population are far below the EFSA recommendations (ADI 0.07 mg/kg bw/day and 40 mg/kg bw/day, respectively).
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Affiliation(s)
- Danijela Vranić
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11040 Belgrade, Serbia
| | - Jelena Milešević
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Dejana Trbović
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11040 Belgrade, Serbia
| | - Mirjana Gurinović
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Vladimir Korićanac
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11040 Belgrade, Serbia
| | - Milica Zeković
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Zoran Petrović
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11040 Belgrade, Serbia
| | - Slavica Ranković
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Dragan Milićević
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11040 Belgrade, Serbia
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Jensen AS, Coffman VR, Schullehner J, Trabjerg BB, Pedersen CB, Hansen B, Olsen J, Pedersen M, Stayner LT, Sigsgaard T. Prenatal exposure to tap water containing nitrate and the risk of small-for-gestational-age: A nationwide register-based study of Danish births, 1991-2015. ENVIRONMENT INTERNATIONAL 2023; 174:107883. [PMID: 37001213 PMCID: PMC10172763 DOI: 10.1016/j.envint.2023.107883] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/07/2023] [Accepted: 03/14/2023] [Indexed: 05/14/2023]
Abstract
BACKGROUND Prenatal nitrate exposure from household tap water has been associated with increased risk of fetal growth restriction, preterm birth, birth defects, and childhood cancer. We aim to examine the association between maternal consumption of drinking-water nitrate during pregnancy and small-for-gestational-age (SGA) in a nationwide study of Danish-born children, as only one prior study has examined this association. METHODS We linked individual-level household estimates of nitrate in tap water and birth registry data to all live singleton Danish births during 1991-2015 from Danish-born parents where the mother resided in Denmark throughout the pregnancy. Exposure was both binned into four categories and modeled as an ln-transformed continuous variable. SGA was defined as the bottom 10% of births by birth weight per sex and gestational week. Multiple logistic regression models with generalized estimating equations were used to account for siblings born to the same mother while controlling for relevant confounders. RESULTS In the cohort of 1,078,892 births, the median pregnancy nitrate exposure was 1.9 mg/L nitrate. Compared to the reference group (≤2 mg/L), we found an increased risk of SGA in the second category (>2-5 mg/L) (OR = 1.04, 95% CI: 1.03-1.06) and third category (>5-25 mg/L) (OR = 1.02, 95% CI: 1.00-1.04) but not in the highest (>25 mg/L). There was strong (p = 0.002) evidence of an increase in SGA with nitrate in the model with continuous exposure (OR = 1.02, 95% CI: 1.01-1.04 per 10-fold increase in nitrate). Results were robust when restricting to households with nitrate levels at or below the current Danish and European Union regulatory drinking water standard (50 mg/L nitrate). CONCLUSIONS Our findings suggest that exposure from nitrate in household tap water, even below current regulatory standards, may increase risk of SGA, raising concerns of whether current allowable nitrate levels in drinking water protect children from SGA.
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Affiliation(s)
- Anja Søndergaard Jensen
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark; Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
| | - Vanessa R Coffman
- Division of Epidemiology and Biostatistics, University of Illinois Chicago, Chicago, IL, USA
| | - Jörg Schullehner
- Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark; Department of Groundwater and Quaternary Geology Mapping, Geological Survey of Denmark and Greenland, Aarhus, Denmark; Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Betina B Trabjerg
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark; National Centre for Register-Based Research (NCRR), Aarhus University, Aarhus, Denmark
| | - Carsten B Pedersen
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark; Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark; National Centre for Register-Based Research (NCRR), Aarhus University, Aarhus, Denmark
| | - Birgitte Hansen
- Department of Groundwater and Quaternary Geology Mapping, Geological Survey of Denmark and Greenland, Aarhus, Denmark
| | - Jørn Olsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Marie Pedersen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Leslie T Stayner
- Division of Epidemiology and Biostatistics, University of Illinois Chicago, Chicago, IL, USA.
| | - Torben Sigsgaard
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark; Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark; Department of Public Health, Aarhus University, Aarhus, Denmark
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9
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Zang R, Yu Q, Guo Z. Impact of Nitrite Supplementation on Bioactive Peptides during Sausage Processing. Foods 2023; 12:foods12020407. [PMID: 36673498 PMCID: PMC9857388 DOI: 10.3390/foods12020407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 12/21/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
The goal of this investigation was to examine the impact of nitrite supplementation on the concentration, antioxidant properties, and species of antioxidant peptides in fermented sausages. The polypeptide concentration in nitrite-supplemented sausages was markedly elevated during sausage processing compared to the blank control (p < 0.05). Moreover, nitrite supplementation in fermented sausages markedly enhanced the DPPH, as well as the ABTS, hydroxyl radical, and superoxide anion free radical scavenging abilities (FRSA) of polypeptides (p < 0.05). The ferrous ion chelating ability was also significantly enhanced (p < 0.05). Based on the liquid chromatograph-mass spectrometer (LC-MS) analysis of the sausage, LPGGGHGDL, TKYRVP, FLKMN, SAGNPN, GLAGA, LPGGGT, DLEE, GKFNV, GLAGA, AEEEYPDL, HCNKKYRSEM, TSNRYHSYPWG, and other polypeptides exhibited antioxidant properties. Moreover, the number of species of antioxidant polypeptides in the nitrite-supplemented sausage was greater in comparison to the controls. Based on this evidence, it may be concluded that nitrite supplementation positively modulated antioxidant polypeptide formation in fermented sausages, thereby providing strong evidence that nitrite supplementation significantly enhances sausage quality.
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Lin L, St Clair S, Gamble GD, Crowther CA, Dixon L, Bloomfield FH, Harding JE. Nitrate contamination in drinking water and adverse reproductive and birth outcomes: a systematic review and meta-analysis. Sci Rep 2023; 13:563. [PMID: 36631499 PMCID: PMC9834225 DOI: 10.1038/s41598-022-27345-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 12/30/2022] [Indexed: 01/13/2023] Open
Abstract
Exposure to low levels of nitrate in drinking water may have adverse reproductive effects. We reviewed evidence about the association between nitrate in drinking water and adverse reproductive outcomes published to November 2022. Randomized trials, cohort or case-control studies published in English that reported the relationship between nitrate intake from drinking water and the risk of perinatal outcomes were included. Random-effect models were used to pool data. Three cohort studies showed nitrate in drinking water is associated with an increased risk of preterm birth (odds ratio for 1 mg/L NO3-N increased (OR1) = 1.01, 95% CI 1.00, 1.01, I2 = 23.9%, 5,014,487 participants; comparing the highest versus the lowest nitrate exposure groups pooled OR (ORp) = 1.05, 95% CI 1.01, 1.10, I2 = 0%, 4,152,348 participants). Case-control studies showed nitrate in drinking water may be associated with the increased risk of neural tube defects OR1 = 1.06, 95% CI 1.02, 1.10; 2 studies, 2196 participants; I2 = 0%; and ORp = 1.51, 95% CI 1.12, 2.05; 3 studies, 1501 participants; I2 = 0%). The evidence for an association between nitrate in drinking water and risk of small for gestational age infants, any birth defects, or any congenital heart defects was inconsistent. Increased nitrate in drinking water may be associated with an increased risk of preterm birth and some specific congenital anomalies. These findings warrant regular review as new evidence becomes available.
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Affiliation(s)
- Luling Lin
- grid.9654.e0000 0004 0372 3343Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Sophie St Clair
- grid.9654.e0000 0004 0372 3343Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Greg D. Gamble
- grid.9654.e0000 0004 0372 3343Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Caroline A. Crowther
- grid.9654.e0000 0004 0372 3343Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Lesley Dixon
- New Zealand College of Midwives, 376 Manchester Street, Richmond, Christchurch, 8014 New Zealand
| | - Frank H. Bloomfield
- grid.9654.e0000 0004 0372 3343Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Jane E. Harding
- grid.9654.e0000 0004 0372 3343Liggins Institute, University of Auckland, Auckland, New Zealand
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11
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Wu K, Yang W, Yan Z, Wang H, Zheng Z, Jiang A, Wang X, Tang Z. Accurate quantification, naked eyes detection and bioimaging of nitrite using a colorimetric and near-infrared fluorescent probe in food samples and Escherichia coli. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 282:121692. [PMID: 35921752 DOI: 10.1016/j.saa.2022.121692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/16/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Nitrite (NO2-) is an inorganic contaminant that exists widely in the environment including water and food products, excessive amounts of NO2- would threaten humans and aquatic life. Developing a rapid and convenient sensing method for NO2- remains a great challenge. Herein, a colorimetric and near-infrared fluorescent probe (TBM) was synthesized and applied for sensitively and selectively detecting NO2- in water, food samples and Escherichia coli (E. coli). With the addition of NO2-, the probe TBM solution has a distinct visual color changed from red to colorless and fluorescence intensity at 620 nm quickly decreased. The probe TBM could detect NO2- quantitatively with a detection limit of 85 nM based on a 3σ/slope. Under optimum conditions, TBM has been successfully used to detect NO2- in real-world environmental and dietary samples, with positive results. Besides, paper strips loaded with TBM have been used to visually determine NO2- levels. Most importantly, TBM has also been proven to be able to discriminate from different concentrations of NO2- in E. coli by fluorescence imaging. In summary, the probe TBM was successfully developed for the accurate quantification, naked eyes detection and bioimaging of NO2- in water, food samples and E. coli, which provides a useful tool to better guarantee the quality and safety of daily life and food industry.
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Affiliation(s)
- Ke Wu
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Wenjie Yang
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Zhi Yan
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Haichao Wang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Zhijuan Zheng
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China; Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China; Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Anqi Jiang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Xiaoming Wang
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China; Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China; Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China.
| | - Zhixin Tang
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China; Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China; Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China.
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Jul Clemmensen P, Brix N, Schullehner J, Lunddorf LLH, Ernst A, Ebdrup NH, Bjerregaard AA, Hansen B, Thomas Stayner L, Ingi Halldorsson T, Frodi Olsen S, Sigsgaard T, Kolstad HA, Ramlau-Hansen CH. Prenatal nitrate exposure from diet and drinking water and timing of puberty in sons and daughters: A nationwide cohort study. ENVIRONMENT INTERNATIONAL 2022; 170:107659. [PMID: 36651653 DOI: 10.1016/j.envint.2022.107659] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/31/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND In Western countries, age at pubertal development has declined during the last century in girls, and probably also in boys. No studies have investigated whether nitrate, a widespread environmental exposure with teratogenic and hormone disrupting properties, might affect timing of puberty. OBJECTIVES We investigated if prenatal exposure to nitrate from drinking water and diet was associated with timing of puberty. METHODS This cohort study included 15,819 children born from 2000 to 2003 within the Danish National Birth Cohort. Self-reported information on current status of various pubertal milestones was provided every six months by a questionnaire from 11 years of age until 18 years or full maturity, whichever came first. Maternal nitrate intake from diet (mg/day) was derived from a mid-pregnancy food frequency questionnaire and individual level nitrate exposure from drinking water (mg/L) was derived using measurements from Danish public waterworks. Adjusted average differences in months in age at attaining several pubertal milestones as well as the average age difference in age at attaining all the milestones were estimated separately for diet and water using a regression model for interval-censored data. C- and E-vitamin, red meat and processed meat intake were explored as potential effect modifiers in sub-analyses. RESULTS No strong associations were observed between prenatal exposure to nitrate and timing of puberty in children. However, sons born of mothers with a nitrate concentration in drinking water at their residential address of > 25 mg/L (half of the World Health Organisation (WHO) guideline value) compared with ≤ 1 mg/L showed a tendency towards earlier age at pubertal development with an average age difference of -1.2 months (95 % confidence interval,-3.0;0.6) for all the pubertal milestones combined. DISCUSSION Studies including more highly exposed children are needed before the current WHO drinking water guideline value for nitrate can be considered safe concerning pubertal development.
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Affiliation(s)
| | - Nis Brix
- Department of Public Health, Aarhus University, Aarhus, Denmark; Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
| | - Jörg Schullehner
- Department of Public Health, Aarhus University, Aarhus, Denmark; Geological Survey of Denmark and Greenland, Aarhus, Denmark; Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
| | | | - Andreas Ernst
- Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Ninna Hinchely Ebdrup
- Department of Public Health, Aarhus University, Aarhus, Denmark; Fertility Clinic, Horsens Regional Hospital, Horsens, Denmark
| | - Anne Ahrendt Bjerregaard
- Department of Epidemiology Research, Center for Fetal Programming, Statens Serum Institut, Copenhagen, Denmark; Centre for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
| | | | - Leslie Thomas Stayner
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, United States
| | - Thorhallur Ingi Halldorsson
- Department of Epidemiology Research, Center for Fetal Programming, Statens Serum Institut, Copenhagen, Denmark; Faculty of Food Science and Nutrition, School of Health Sciences, University of Iceland, Iceland
| | - Sjurdur Frodi Olsen
- Department of Epidemiology Research, Center for Fetal Programming, Statens Serum Institut, Copenhagen, Denmark; Section of Epidemiology, Institute of Public Health, University of Copenhagen, Denmark
| | - Torben Sigsgaard
- Department of Public Health, Aarhus University, Aarhus, Denmark; Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark; Cirrau -Centre for Integrated Register-based Research at Aarhus University, Aarhus, Denmark
| | - Henrik Albert Kolstad
- Department of Occupational Medicine, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Ebdrup NH, Schullehner J, Knudsen UB, Liew Z, Thomsen AML, Lyngsø J, Bay B, Arendt LH, Clemmensen PJ, Sigsgaard T, Hansen B, Ramlau-Hansen CH. Drinking water nitrate and risk of pregnancy loss: a nationwide cohort study. Environ Health 2022; 21:87. [PMID: 36114546 PMCID: PMC9479399 DOI: 10.1186/s12940-022-00897-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 09/01/2022] [Indexed: 05/12/2023]
Abstract
BACKGROUND Nitrate contamination is seen in drinking water worldwide. Nitrate may pass the placental barrier. Despite suggestive evidence of fetal harm, the potential association between nitrate exposure from drinking water and pregnancy loss remains to be studied. We aimed to investigate if nitrate in drinking water was associated with the risk of pregnancy loss. METHODS We conducted a nationwide cohort study of 100,410 pregnancies (enrolled around gestational week 11) in the Danish National Birth Cohort (DNBC) during 1996-2002. Spontaneous pregnancy losses before gestational week 22 were ascertained from the Danish National Patient Registry and DNBC pregnancy interviews. Using the national drinking water quality-monitoring database Jupiter, we estimated the individual and time-specific nitrate exposure by linking geocoded maternal residential addresses with water supply areas. The nitrate exposure was analyzed in spline models using a log-transformed continuous level or classified into five categories. We used Cox proportional hazards models to estimate associations between nitrate and pregnancy loss and used gestational age (days) as the time scale, adjusting for demographic, health, and lifestyle variables. RESULTS No consistent associations were found when investigating the exposure as a categorical variable and null findings were also found in trimester specific analyses. In the spline model using the continuous exposure variable, a modestly increased hazard of pregnancy loss was observed for the first trimester at nitrate exposures between 1 and 10 mg/L, with the highest. adjusted hazard ratio at 5 mg/L of nitrate of 1.16 (95% CI: 1.01, 1.34). This trend was attenuated in the higher exposure ranges. CONCLUSION No association was seen between drinking water nitrate and the risk of pregnancy loss when investigating the exposure as a categorical variable. When we modelled the exposure as a continuous variable, a dose-dependent association was found between drinking water nitrate exposure in the first trimester and the risk of pregnancy loss. Very early pregnancy losses were not considered in this study, and whether survival bias influenced the results should be further explored.
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Affiliation(s)
- Ninna Hinchely Ebdrup
- Department of Obstetrics and Gynecology, Horsens Fertility Clinic, Horsens, Denmark.
- Department of Public Health, Aarhus University, Aarhus, Denmark.
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
| | - Jörg Schullehner
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Geological Survey of Denmark and Greenland, Aarhus, Denmark
| | - Ulla Breth Knudsen
- Department of Obstetrics and Gynecology, Horsens Fertility Clinic, Horsens, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Zeyan Liew
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | - Anne Marie Ladehoff Thomsen
- Department of Public Health, Aarhus University, Aarhus, Denmark
- DEFACTUM - Public Health & Health Services Research, Central Denmark Region, Aarhus, Denmark
| | - Julie Lyngsø
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Aarhus, Denmark
| | - Bjørn Bay
- Department of Obstetrics and Gynecology, Horsens Fertility Clinic, Horsens, Denmark
- Maigaard Fertility Clinic, Aarhus, Denmark
| | - Linn Håkonsen Arendt
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Torben Sigsgaard
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Centre for Integrated Register-Based Research Aarhus University, Aarhus, Denmark
- Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
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Prenatal exposure to nitrate from drinking water and the risk of preterm birth. Environ Epidemiol 2022; 6:e223. [PMID: 36249267 PMCID: PMC9556052 DOI: 10.1097/ee9.0000000000000223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 07/15/2022] [Indexed: 12/02/2022] Open
Abstract
Evidence is emerging that preterm birth (PTB, birth before 37 completed weeks of gestation), a risk factor for neonatal mortality and future morbidity, may be induced by maternal nitrate (NO3−) exposure from drinking water. The objective of this study is to assess the association between maternal exposure to nitrate and the risk of PTB in a nationwide study of liveborn singletons.
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Stayner LT, Jensen AS, Schullehner J, Coffman VR, Trabjerg BB, Olsen J, Hansen B, Pedersen M, Pedersen CB, Sigsgaard T. Nitrate in drinking water and risk of birth defects: Findings from a cohort study of over one million births in Denmark. THE LANCET REGIONAL HEALTH. EUROPE 2022; 14:100286. [PMID: 35141697 PMCID: PMC8814759 DOI: 10.1016/j.lanepe.2021.100286] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Background A few studies have reported an increased risk of birth defects (BD) with maternal exposure to nitrate in drinking water. We examined this association in a large cohort study with well-characterized exposure. Methods Danish singletons liveborn to Danish-born parents from 1991–2013 were identified using civil and patient registries (n=1,018,914). Exposure to nitrate was estimated using a spatial model based on national data linked with individual addresses. Odds ratios (OR) and 95% confidence intervals (95% CI) were estimated using logistic regression. Findings In total, 33,182 cases of BD were identified. Nitrate concentrations were generally well below US and EU standards. We observed an exposure-response relationship (p=0·004) between nitrate during pregnancy and eye BD, and increased risk in the highest exposure group (≥25 mg/L nitrate) (OR: 1·29; 95% CI: 1·00, 1·66). An interaction was observed between maternal age and continuous nitrate exposure for nervous system BD (p<0·001) indicating an increased risk among mothers <25 years-of-age (OR for 10 mg/L (OR10): 1·20; 95% CI: 1·06, 1·35). An interaction (p<0.01) with maternal age and continuous nitrate exposure was also observed for ear, face, and neck BD indicating an increased risk among babies born to mothers <25 years-of-age (OR10: 1·35; 95% CI: 1·11, 1·66). There was evidence of an inverse exposure-response relationship for any, digestive system, female genital, and urinary BD. Interpretation Our study is the first to report an association between nitrate and eye BD and BD of the ear, face, and neck. It also provides support to prior reports of increased risk of nervous system BD. Funding This study was supported by a grant from the United States National Institute of Environmental Health Sciences (R01 ES027823-01A1).
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Thomsen AML, Ramlau-Hansen CH, Schullehner J, Ebdrup NH, Liew Z, Coffman V, Stayner L, Hansen B, Olsen J. Prenatal nitrosatable prescription drug intake, drinking water nitrate, and the risk of stillbirth: a register- and population-based cohort of Danish pregnancies, 1997-2017. Environ Health 2021; 20:118. [PMID: 34781958 PMCID: PMC8594235 DOI: 10.1186/s12940-021-00805-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Nitrosatable drugs commonly prescribed during pregnancy can react with nitrite to form N-nitroso compounds which have been associated with an increased risk of stillbirth. Whether maternal residential drinking water nitrate modifies this association is unknown. We investigated, if household drinking water nitrate was associated with stillbirth, and if it modified the association between nitrosatable prescription drug intake and the risk of stillbirth. METHODS We conducted an individual-level register- and population-based cohort study using 652,810 women with the first recorded singleton pregnancy in the Danish Medical Birth Registry between 1997 and 2017. Nitrosatable drug exposure was recorded by use of the Danish National Patient Registry defined as women with a first redeemed prescription of a nitrosatable drug the first 22 weeks of pregnancy. The reference group was women with no redeemed prescription of a nitrosatable drug in this period. The average individual drinking water nitrate concentration level (mg/L) was calculated in the same period. We categorized nitrosatable drugs as secondary amines, tertiary amines, and amides. Cox hazard regression was used to estimate crude and adjusted hazard ratios with 95% confidence intervals for stillbirth stratified into five categories of nitrate concentrations: ≤1 mg/L, > 1- ≤ 2 mg/L, > 2- ≤ 5 mg/L, > 5- ≤ 25 mg/L, and > 25 mg/L. RESULTS Drinking water nitrate exposure in the population was not associated with the risk of stillbirth. Among 100,244 women who had a nitrosatable prescription drug redeemed ≤22 weeks of pregnancy of pregnancy, 418 (0.42%) had a stillbirth compared to 1993 stillbirths (0.36%) among 552,566 referent women. Women with any nitrosatable prescription drug intake and > 1- ≤ 2 mg/L nitrate concentration had an increased risk of stillbirth [adjusted hazard ratio 1.55 (95% confidence interval, 1.15-2.09)] compared with referent women. In the stratified analyses, the highest risk of stillbirth was found among women with secondary amine intake and > 25 mg/L nitrate concentrations [adjusted hazard ratio 3.11 (95% CI, 1.08-8.94)]. CONCLUSIONS The association between nitrosatable prescription drug intake and the risk of stillbirth may depend on the level of nitrate in household drinking water. Evaluations of the effect of nitrosatable drug intake on perinatal outcomes might consider nitrate exposure from drinking water.
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Affiliation(s)
- Anne Marie Ladehoff Thomsen
- DEFACTUM, Public Health & Health Services Research, Central Denmark Region, Olof Palmes Allé 15, 8200, Aarhus N, Denmark.
- Department of Public Health, Aarhus University, Aarhus, Denmark.
| | | | - Jörg Schullehner
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Groundwater and Quaternary Geology Mapping, Geological Survey of Denmark and Greenland, Aarhus, Denmark
- Center for Integrated Research-based Research, Aarhus University, Aarhus, Denmark
| | | | - Zeyan Liew
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, USA
| | - Vanessa Coffman
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, IL, USA
| | - Leslie Stayner
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, IL, USA
| | - Birgitte Hansen
- Department of Groundwater and Quaternary Geology Mapping, Geological Survey of Denmark and Greenland, Aarhus, Denmark
| | - Jørn Olsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
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Marshall CJ, Beck MR, Garrett K, Barrell GK, Al-Marashdeh O, Gregorini P. Nitrogen Balance of Dairy Cows Divergent for Milk Urea Nitrogen Breeding Values Consuming Either Plantain or Perennial Ryegrass. Animals (Basel) 2021; 11:ani11082464. [PMID: 34438921 PMCID: PMC8388765 DOI: 10.3390/ani11082464] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 01/07/2023] Open
Abstract
Simple Summary We studied the nitrogen excretion patterns of cows selected for divergent nitrogen excretion consuming either ryegrass or plantain. Both the use of a plantain diet as well as the use of low milk urea nitrogen breeding values were found to reduce the concentration of urinary urea nitrogen per urination event compared to cows with a high milk urea nitrogen breeding value and cows consuming a ryegrass-based diet. These results indicate that both the use of cows with low milk urea nitrogen breeding values and the use of a plantain diet are tools that temperate pastoral dairy production systems can use to reduce nitrogen loses. Abstract Inefficient nitrogen (N) use from pastoral dairy production systems has resulted in environmental degradation, as a result of excessive concentrations of urinary N excretion leaching into waterways and N2O emissions from urination events into the atmosphere. The objectives of this study were to measure and evaluate the total N balance of lactating dairy cows selected for milk urea N concentration breeding values (MUNBVs) consuming either a 100% perennial ryegrass (Lolium perenne L.) or 100% plantain (Plantago lanceolata L.) diet. Sixteen multiparous lactating Holstein-Friesian × Jersey cows divergent for MUNBV were housed in metabolism crates for 72 h, where intake and excretions were collected and measured. No effect of MUNBV was detected for total N excretion; however, different excretion characteristics were detected, per urination event. Low MUNBV cows had a 28% reduction in the concentration of urinary urea nitrogen (g/event) compared to high MUNBV cows when consuming a ryegrass diet. Cows consuming plantain regardless of their MUNBV value had a 62% and 48% reduction in urinary urea nitrogen (g/event) compared to high and low MUNBV cows consuming ryegrass, respectively. Cows consuming plantain also partitioned more N into faeces. These results suggest that breeding for low MUNBV cows on ryegrass diets and the use of a plantain diet will reduce urinary urea nitrogen loading rates and therefore estimated nitrate leaching values, thus reducing the environmental impact of pastoral dairy production systems.
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Affiliation(s)
- Cameron J. Marshall
- Faculty of Agriculture and Life Sciences, Lincoln University, P.O. Box 85084, Lincoln 7647, New Zealand; (K.G.); (G.K.B.); (O.A.-M.); (P.G.)
- Correspondence:
| | - Matthew R. Beck
- USDA-ARS, Livestock Nutrient Management Research Unit, 300 Simmons Drive, Unit 10, Bushland, TX 79012, USA;
| | - Konagh Garrett
- Faculty of Agriculture and Life Sciences, Lincoln University, P.O. Box 85084, Lincoln 7647, New Zealand; (K.G.); (G.K.B.); (O.A.-M.); (P.G.)
| | - Graham K. Barrell
- Faculty of Agriculture and Life Sciences, Lincoln University, P.O. Box 85084, Lincoln 7647, New Zealand; (K.G.); (G.K.B.); (O.A.-M.); (P.G.)
| | - Omar Al-Marashdeh
- Faculty of Agriculture and Life Sciences, Lincoln University, P.O. Box 85084, Lincoln 7647, New Zealand; (K.G.); (G.K.B.); (O.A.-M.); (P.G.)
| | - Pablo Gregorini
- Faculty of Agriculture and Life Sciences, Lincoln University, P.O. Box 85084, Lincoln 7647, New Zealand; (K.G.); (G.K.B.); (O.A.-M.); (P.G.)
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Novel (CH6N3+, NH3+)-functionalized and nitrogen doped Co3O4 thin film electrochemical sensor for nanomolar detection of nitrite in neutral pH. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Cassani MC, Castagnoli R, Gambassi F, Nanni D, Ragazzini I, Masciocchi N, Boanini E, Ballarin B. A Cu(II)-MOF Based on a Propargyl Carbamate-Functionalized Isophthalate Ligand as Nitrite Electrochemical Sensor. SENSORS (BASEL, SWITZERLAND) 2021; 21:4922. [PMID: 34300663 PMCID: PMC8309846 DOI: 10.3390/s21144922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/23/2021] [Accepted: 07/08/2021] [Indexed: 11/16/2022]
Abstract
This paper investigates the electrochemical properties of a new Cu(II)-based metal-organic framework (MOF). Noted as Cu-YBDC, it is built upon a linker containing the propargyl carbamate functionality and immobilized on a glassy carbon electrode by drop-casting (GC/Cu-YBDC). Afterward, GC/Cu-YBDC was treated with HAuCl4 and the direct electro-deposition of Au nanoparticles was carried at 0.05 V for 600 s (GC/Au/Cu-YBDC). The performance of both electrodes towards nitrite oxidation was tested and it was found that GC/Au/Cu-YBDC exhibited a better electrocatalytic behavior toward the oxidation of nitrite than GC/Cu-YBDC with enhanced catalytic currents and a reduced nitrite overpotential from 1.20 to 0.90 V. Additionally GC/Au/Cu-YBDC showed a low limit of detection (5.0 μM), an ultrafast response time (<2 s), and a wide linear range of up to 8 mM in neutral pH.
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Affiliation(s)
- Maria Cristina Cassani
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, Via Risorgimento 4, I-40136 Bologna, Italy; (R.C.); (F.G.); (D.N.); (I.R.)
| | - Riccardo Castagnoli
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, Via Risorgimento 4, I-40136 Bologna, Italy; (R.C.); (F.G.); (D.N.); (I.R.)
| | - Francesca Gambassi
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, Via Risorgimento 4, I-40136 Bologna, Italy; (R.C.); (F.G.); (D.N.); (I.R.)
| | - Daniele Nanni
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, Via Risorgimento 4, I-40136 Bologna, Italy; (R.C.); (F.G.); (D.N.); (I.R.)
| | - Ilaria Ragazzini
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, Via Risorgimento 4, I-40136 Bologna, Italy; (R.C.); (F.G.); (D.N.); (I.R.)
| | - Norberto Masciocchi
- Department of Science and High Technology & To.Sca.Lab., University of Insubria, Via Valleggio 11, I-22100 Como, Italy;
| | - Elisa Boanini
- Department of Chemistry “Giacomo Ciamician”, Bologna University, Via Selmi 2, I-40126 Bologna, Italy;
| | - Barbara Ballarin
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, Via Risorgimento 4, I-40136 Bologna, Italy; (R.C.); (F.G.); (D.N.); (I.R.)
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20
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Motaghedifard MH, Pourmortazavi SM, Alibolandi M, Mirsadeghi S. Au-modified organic/inorganic MWCNT/Cu/PANI hybrid nanocomposite electrode for electrochemical determination of nitrate ions. Mikrochim Acta 2021; 188:99. [PMID: 33625593 DOI: 10.1007/s00604-021-04754-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/08/2021] [Indexed: 11/28/2022]
Abstract
A new electrochemical sensor is reported for the based on the application of noble bimetal nanoparticles (gold and copper) to polymeric-carbon-modifiers for the reduction of nitrate. This sensor was designed for nitrate ion measurement at the surface of pencil graphite electrode modified by a nanocomposite. The modification was the electrosynthesis of gold nanoparticles on the MWCNT/copper-polyaniline (Cu-PANI) nanocomposite. Physicochemical properties of the synthesized hybrid nanocomposites and their surface performance efficiency are characterized using microscopic, spectroscopic, and electrochemical techniques. At optimized pH, the nitrate peak current (at working potential of 1084 mV versus Ag/AgCl reference electrode) was linear in the concentration range 0.8-30.0 μM with a detection limit of 0.09 μM using differential pulse voltammetry. Modified sensor was successfully implemented to quantify nitrate ions in wastewater resulting from the production line for industrial barium chromate and an example of aqueduct water with appropriate recovery levels. • Aniline was polymerized in phosphoric acid solution using peroxydisulfate as an initiator. • MWCNT@CuNPs@PANNSs@AuNPs nanocomposite on PGE electrode was revealed specific recognition for NO3-. • The electrochemical sensor displayed high selectivity and sensitivity for the detection of NO3-.
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Affiliation(s)
| | | | - Mahdieh Alibolandi
- Research and Development Center, Pakian Kavir Industrial Group, Kashan, Iran.,Department of Analytical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Somayeh Mirsadeghi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran.
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21
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Coffman VR, Jensen AS, Trabjerg BB, Pedersen CB, Hansen B, Sigsgaard T, Olsen J, Schaumburg I, Schullehner J, Pedersen M, Stayner LT. Prenatal Exposure to Nitrate from Drinking Water and Markers of Fetal Growth Restriction: A Population-Based Study of Nearly One Million Danish-Born Children. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:27002. [PMID: 33539179 PMCID: PMC7861494 DOI: 10.1289/ehp7331] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
BACKGROUND High levels of nitrate (NO3-) in drinking water cause methemoglobinemia in infants; however, few studies have examined the potential effects of low-level exposure on fetal growth, and the results have been inconsistent. OBJECTIVES We sought to assess the association between maternal exposure to nitrate in drinking water during pregnancy and offspring size at birth in a nationwide study of full-term (≥37 wk gestation) live-born singletons. METHODS We estimated maternal nitrate exposure for 898,206 births in Denmark during 1991-2011 by linkage of individual home address(es) with nitrate data from the national monitoring database. Maternal address during pregnancy, infant size at birth [i.e., birth weight, low birth weight (LBW), body length, and birth head circumference] and covariates were compiled from the Danish Civil Registration System, the Danish Medical Birth Register, and The Integrated Database for Longitudinal Labor Market Research. Linear and logistic models with generalized estimating equations were used to account for multiple births to an individual. Nitrate exposure was modeled using five categories and as a log-transformed continuous variable. RESULTS There was evidence of a decreasing trend in models for term birth weight using categorical or continuous measures of exposure. Modeling exposure continuously, a difference of -9.71 g (95% confidence interval: -14.60, -4.81) was predicted at 25 mg/L (half the value of the European Union drinking water standard) compared with 0 mg/L NO3-. Body length also decreased as nitrate concentrations increased in categorical and continuous models. There was little evidence of an association between NO3- and head circumference or LBW. DISCUSSION Although the estimated effects were small, our findings for live singleton births to Danish-born parents suggest that maternal intake of nitrate from drinking water may reduce term birth weight and length, which are markers of intrauterine growth. However, there was little evidence for an association between nitrate and head circumference or LBW. Future studies in other populations and with data on dietary sources of nitrate are encouraged to confirm or refute these findings. https://doi.org/10.1289/EHP7331.
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Affiliation(s)
- Vanessa R Coffman
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois, USA
| | | | - Betina B Trabjerg
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark
- National Centre for Register-Based Research (NCRR), Department of Economics and Business Economics, Aarhus University, Aarhus, Denmark
| | - Carsten B Pedersen
- Centre for Integrated Register-based Research (CIRRAU), Aarhus University, Aarhus, Denmark
- Big Data Centre for Environment and Health (BERTHA), Aarhus University, Aarhus, Denmark
- National Centre for Register-Based Research (NCRR), Department of Economics and Business Economics, Aarhus University, Aarhus, Denmark
| | - Birgitte Hansen
- Department of Groundwater and Quaternary Geology Mapping, Geological Survey of Denmark and Greenland, Aarhus, Denmark
| | | | - Jørn Olsen
- Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark
| | | | - Jörg Schullehner
- Department of Groundwater and Quaternary Geology Mapping, Geological Survey of Denmark and Greenland, Aarhus, Denmark
- Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Marie Pedersen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Leslie T Stayner
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois, USA
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22
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Graphene Nanoparticle-Based, Nitrate Ion Sensor Characteristics. NANOMATERIALS 2021; 11:nano11010150. [PMID: 33435374 PMCID: PMC7827539 DOI: 10.3390/nano11010150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/24/2020] [Accepted: 01/05/2021] [Indexed: 12/31/2022]
Abstract
Gathering and sensing of nitrate ions in the environment due to the abundant use in industry and agriculture have become an important problem, which needs to be overcome. On the other hand, new materials such as carbon-based materials with unique properties have become an ideal choice in sensing technology. In this research, the high-density polyethylene (HDPE) polymer as a carbon source in the melted form was used and carbon nanoparticles in the form of a strand between two electrodes were analyzed. It was fabricated between copper electrodes by the pulsed arc discharge method. Subsequently, the constructed metal–nanoparticle–metal (MNM) contact was employed to recognize the nitrate ions. Therefore, NaNO3, Pb(NO3)2, Zn(NO3)2, and NH4NO3 samples as a usual pollutant of industrial and agricultural wastewater were examined. All nitrate compounds in ten different densities were tested and sensor I-V characteristic was investigated, which showed that all the aforesaid compounds were recognizable by the graphene nano-strand. Additionally, the proposed structure in the presence of ions was simulated and acceptable agreement between them was reported. Additionally, the proposed structure analytically was investigated, and a comparison study between the proposed model and measured results was carried out and realistic agreement reported.
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23
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Yang L, Wang F, Zhao J, Kong X, Lu K, Yang M, Zhang J, Sun Z, You J. A facile dual-function fluorescent probe for detection of phosgene and nitrite and its applications in portable chemosensor analysis and food analysis. Talanta 2021; 221:121477. [PMID: 33076090 DOI: 10.1016/j.talanta.2020.121477] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/25/2020] [Accepted: 07/27/2020] [Indexed: 12/16/2022]
Abstract
Due to the potential threats of phosgene and nitrite to public health and safety, in this work, we first proposed the application of a facile dual-function fluorescent probe 2-(1H-Benzimidazol-2-yl)Aniline (BMA) for the detection of phosgene and nitrite in different solvent environments. BMA had fast response (1 min), high selectivity and sensitivity (the limit of detection was 1.27 nM) to phosgene in CH3CN solution (containing 10% DMSO), which manifested as a ratiometric fluorescent mode from 416 nm to 480 nm. The response of BMA to nitrite in HCl solution (pH = 1, containing 10% CH3CN) was also highly selective and sensitive (the limit of detection was 60.63 nM), which shown as a turn-off fluorescent mode at 485 nm. In addition, two portable chemosensors (BMA-loaded TLC plates and test strips) had also been successfully manufactured for the detection of phosgene in the gas phase and nitrite in solution, which displayed good responses. Most importantly, BMA had also been successfully used for detection of nitrite in food samples, and a good recovery (88.5%-107.2%) was obtained by adding standard sodium nitrite.
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Affiliation(s)
- Lei Yang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, China
| | - Feng Wang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, China
| | - Jie Zhao
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, China
| | - Xiaojian Kong
- School of Chemical New Material Engineering, Shandong Polytechnic College, Jining, 272027, China
| | - Ke Lu
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, China
| | - Mian Yang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, China
| | - Jin Zhang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, China
| | - Zhiwei Sun
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, China.
| | - Jinmao You
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, 273165, China; Key Laboratory of Tibetan Medicine Research & Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, 810001, China.
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24
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Song X, Liu Y, Wang T, Zhang S, Sun M, Shu J, Wei J, Diao J, Li J, Li Y, Chen L, Zhu P, Qin J. Association of Maternal Dietary Habits and MTHFD1 Gene Polymorphisms With Ventricular Septal Defects in Offspring: A Case-Control Study. Front Pediatr 2021; 9:785440. [PMID: 35186819 PMCID: PMC8847777 DOI: 10.3389/fped.2021.785440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/08/2021] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES This study aimed at assessing the association between maternal methylenetetrahydrofolate dehydrogenase 1 (MTHFD1) gene polymorphisms, maternal dietary habits, and their interactions with the risk of ventricular septal defects (VSD) in offspring. METHODS From November 2017 to March 2019, a case-control study comprising 360 mothers of VSD cases and 504 mothers of healthy infants was conducted in Han Chinese populations. The main exposures of interest were maternal dietary habits in early pregnancy and MTHFD1 gene polymorphisms. Logistic regression models were used to estimate the main effects and interaction effects. RESULTS It was observed that maternal excessive intake of pickled vegetables (aOR = 1.85, 95%CI: 1.45-2.37), smoked foods (aOR = 1.93, 95%CI: 1.48-2.51), barbecued foods (aOR = 1.74, 95%CI: 1.28-2.36), and fried foods (aOR = 1.68, 95%CI: 1.30-2.17) were associated with a higher risk of VSD in offspring, whereas maternal excessive intake of fresh meat (aOR = 0.61, 95%CI: 0.47-0.79), fish and shrimp (aOR = 0.29, 95%CI: 0.23-0.38), fresh eggs (aOR = 0.54, 95%CI: 0.42-0.70), fresh fruits or vegetables (aOR = 0.44, 95%CI: 0.33-0.60), soy foods (aOR = 0.65, 95%CI: 0.53-0.80), and milk products (aOR = 0.49, 95%CI: 0.40-0.59) could contribute significantly to a lower risk of VSD in offspring. Furthermore, the genetic polymorphisms of maternal MTHFD1 gene at rs1950902 (GA vs. GG: aOR = 0.67, 95%CI: 0.50-0.90) and rs2236222 (GG vs. AA: aOR = 2.75, 95%CI: 1.57-4.83) were significantly associated with the risk of VSD in offspring. In addition, there was a significant interaction effect between maternal dietary habits and MTHFD1 gene polymorphisms on the risk of VSD. CONCLUSIONS Maternal dietary factors, MTHFD1 genetic polymorphisms, and their interactions were all associated with the risk of VSD in offspring. However, further research in diverse ethnic populations and with a larger sample size is warranted to corroborate our findings. TRIAL REGISTRATION Registered in Chinese Clinical Trial Registry Center; registration number, ChiCTR1800016635; registration date, 06/14/2018 (Retrospectively registered); URL of trial registry record, https://www.chictr.org.cn/showproj.aspx?proj=28300.
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Affiliation(s)
- Xinli Song
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Yiping Liu
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Tingting Wang
- National Health Committee Key Laboratory of Birth Defect for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
| | - Senmao Zhang
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Mengting Sun
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Jing Shu
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Jianhui Wei
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Jingyi Diao
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Jinqi Li
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Yihuan Li
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Letao Chen
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Ping Zhu
- Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Jiabi Qin
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China.,National Health Committee Key Laboratory of Birth Defect for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China.,Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangzhou, China.,Hunan Provincial Key Laboratory of Clinical Epidemiology, Changsha, China
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25
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Baruah U, Manna U. The synthesis of a chemically reactive and polymeric luminescent gel. Chem Sci 2020; 12:2097-2107. [PMID: 34163973 PMCID: PMC8179304 DOI: 10.1039/d0sc05166g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 11/29/2020] [Indexed: 12/13/2022] Open
Abstract
In the past, chemically reactive polymeric interfaces have been considered to be of potential interest for developing functional materials for a wide range of practical applications. Furthermore, the rational incorporation of luminescence properties into such chemically reactive interfaces could provide a basis for extending the horizon of their prospective utility. In this report, a simple catalyst-free chemical approach is introduced to develop a chemically reactive and optically active polymeric gel. Branched-polyethyleneimine (BPEI)-derived, inherently luminescent carbon dots (BPEI-CDs) were covalently crosslinked with pentaacrylate (5Acl) through a 1,4-conjugate addition reaction under ambient conditions. The synthesized polymeric gel was milky white under visible light; however, it displayed fluorescence under UV light. Additionally, the residual acrylate groups in the synthesized fluorescent gel allowed its chemical functionality to be tailored through facile, robust 1,4-conjugate addition reactions with primary-amine-containing small molecules under ambient conditions. The chemical reactivity of the luminescent gel was further employed for a proof-of-concept demonstration of portable and parallel 'ON'/'OFF' toxic chemical sensing (namely, the sensing of nitrite ions as a model analyte). First, the chemically reactive luminescent gel derived from BPEI-CDs was covalently post-modified with aniline for the selective synthesis of a diazo compound in the presence of nitrite ions. During this process, the color of the gel under visible light changed from white to yellow and, thus, the colorimetric mode of the sensor was turned 'ON'. In parallel, the luminescence of the gel under UV light was quenched, which was denoted as the 'OFF' mode of the sensor. This parallel and unambiguous 'ON'/'OFF' sensing of a toxic chemical (nitrite ions, with a detection limit of 3 μM) was also achieved even in presence of other relevant interfering ions and at concentrations well below the permissible limit (65 μM) set by the World Health Organization (WHO). Furthermore, this chemically reactive luminescent gel could be of potential interest in a wide range of basic and applied contexts.
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Affiliation(s)
- Upama Baruah
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Uttam Manna
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
- Centre for Nanotechnology, Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
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26
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Abou‐Melha KS. Analytical Chemistry Optical Chemosensor for Spectrophotometric Determination of Nitrite in Wastewater. ChemistrySelect 2020. [DOI: 10.1002/slct.202001366] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Khlood S. Abou‐Melha
- Department of Chemistry Faculty of Science King Khalid University P.O. Box 9004 Abha Saudi Arabia
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27
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Hou J, Wu H, Shen X, Zhang C, Hou C, He Q, Huo D. Phenosafranin-Based Colorimetric-Sensing Platform for Nitrite Detection Enabled by Griess Assay. SENSORS 2020; 20:s20051501. [PMID: 32182908 PMCID: PMC7085749 DOI: 10.3390/s20051501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 11/16/2022]
Abstract
A facile and effective colorimetric-sensing platform based on the diazotization of phenosafranin for the detection of NO 2 - under acidic conditions using the Griess assay is presented. Diazotization of commercial phenosafranin produces a color change from purplish to blue, which enables colorimetric quantitative detection of NO 2 - . Optimal detection conditions were obtained at a phenosafranin concentration of 0.25 mM, HCl concentration of 0.4 M, and reaction time of 20 min. Under the optimized detection conditions, an excellent linearity range from 0 to 20 μM was obtained with a detection limit of 0.22 μM. Favorable reproducibility and selectivity of the colorimetric sensing platform toward NO 2 - were also verified. In addition, testing spiked ham sausage, bacon, and sprouts samples demonstrated its excellent practicability. The presented colorimetric sensing platform is a promising candidate for the detection of NO 2 - in real applications.
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Affiliation(s)
- Jingzhou Hou
- Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China;
- Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, China;
| | - Huixiang Wu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, China; (H.W.); (X.S.); (C.H.)
- School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Clean Energy and Materials, Guangzhou University, Guangzhou 510006, China
| | - Xin Shen
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, China; (H.W.); (X.S.); (C.H.)
| | - Chao Zhang
- Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, China;
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, China; (H.W.); (X.S.); (C.H.)
| | - Qiang He
- Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China;
- Correspondence: (Q.H.); (D.H.); Tel.: +86-023-6512-7226 (Q.H.); +86-023-6511-2673 (D.H.)
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, China; (H.W.); (X.S.); (C.H.)
- Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China
- Correspondence: (Q.H.); (D.H.); Tel.: +86-023-6512-7226 (Q.H.); +86-023-6511-2673 (D.H.)
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28
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Xu Z, Shi W, Yang C, Xu J, Liu H, Xu J, Zhu B. A colorimetric fluorescent probe for rapid and specific detection of nitrite. LUMINESCENCE 2019; 35:299-304. [PMID: 31788982 DOI: 10.1002/bio.3727] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/22/2019] [Accepted: 05/19/2019] [Indexed: 12/18/2022]
Abstract
The method of fluorescent probes has been an important technique for detection of nitrite (NO2 - ). As an important inorganic salt, excessive nitrite would threaten humans and the environment. In this paper, a colorimetric fluorescent probe P-N (1,2-diaminoanthraquinone) with rapid response and high selectivity, which could detect NO2 - by visual colour changes and fluorescence spectroscopy is presented. The probe P-N solution (pH 1) changed from pink to colourless with the addition of NO2 - and fluorescence intensity at 639 nm clearly decreased. Good linear exists between fluorescence intensities and NO2 - concentrations for the range 0-16 μM, and the detection limit was 54 nM (based on a 3σ/slope). Moreover, probe P-N could also detect NO2 - in real water samples, and results were all satisfactory. Probe P-N shows great practical application value for detecting NO2 - in the environment.
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Affiliation(s)
- Zujun Xu
- School of Mathematics and Statistics, Ludong University, Yantai, China
| | - Wenxiu Shi
- School of Mathematics and Statistics, Ludong University, Yantai, China
| | - Chengjun Yang
- School of Mathematics and Statistics, Ludong University, Yantai, China
| | - Jing Xu
- School of Mathematics and Statistics, Ludong University, Yantai, China
| | - Huapeng Liu
- School of Mathematics and Statistics, Ludong University, Yantai, China
| | - Jing Xu
- School of Water Conservancy and Environment, University of Jinan, Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan, China
| | - Baocun Zhu
- School of Water Conservancy and Environment, University of Jinan, Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan, China
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29
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Blaisdell J, Turyk ME, Almberg KS, Jones RM, Stayner LT. Prenatal exposure to nitrate in drinking water and the risk of congenital anomalies. ENVIRONMENTAL RESEARCH 2019; 176:108553. [PMID: 31325834 PMCID: PMC6710151 DOI: 10.1016/j.envres.2019.108553] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/19/2019] [Accepted: 06/19/2019] [Indexed: 05/12/2023]
Abstract
BACKGROUND Nitrate is a common water contaminant that has been associated with birth defects, although the evidence is limited. The purpose of this study was to examine whether maternal consumption of nitrate through drinking water is associated with an increased risk of congenital anomalies. METHODS The study included a total of 348,250 singletons births from the state of Missouri between January 1, 2004 and December 31, 2008. Individual-level birth defect data and maternal and child characteristics were obtained from the Missouri birth defects registry and state vital statistics records. Outcomes were linked with county-specific monthly estimates of the nitrate concentration in finished water, based on data collected for compliance with the Safe Drinking Water Standard. Poisson models were fit to examine the association between nitrate exposure and birth defects. Average nitrate exposure during the first trimester and over 12 months prior to birth were modeled as continuous variables. Sensitivity analyses included restriction of the sample to counties with <20% and <10% private well usage to reduce exposure misclassification as well as limiting the analyses to residents of rural counties only to account for potential confounding by urbanicity. RESULTS Estimated water concentrations of nitrate were generally low and below the Environmental Protection Agency's maximum contaminant level of 10 mg/L. Nitrate exposure was associated with a significantly increased risk of limb deficiencies (RR for 1 mg/L (RR1) = 1.26, 95% CI = 1.05, 1.51) in models without well restriction. Nitrate was also weakly associated with an increased risk of congenital heart defects (RR1 = 1.13, 95%CI = 0.93, 1.51) and neural tube defects (RR1 = 1.18, 95%CI = 0.93, 1.51) in models with well restriction (<10%). CONCLUSION The positive associations found between nitrate exposure via drinking water and congenital abnormalities are largely consistent with some previous epidemiologic studies. The results of this study should be interpreted with caution given limitations in our ability to estimate exposures and the lack information on some risk factors for congenital abnormalities. Our findings may have serious policy implications given that exposure levels in our study were well below current EPA standards for nitrate in drinking water.
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Affiliation(s)
- Julie Blaisdell
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, IL, USA
| | - Mary E Turyk
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, IL, USA
| | - Kirsten S Almberg
- Division of Environmental and Occupational Health Sciences, University of Illinois at Chicago, School of Public Health, Chicago, IL, USA
| | - Rachael M Jones
- Division of Environmental and Occupational Health Sciences, University of Illinois at Chicago, School of Public Health, Chicago, IL, USA
| | - Leslie T Stayner
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, IL, USA.
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Sodium nitrite negatively affects reproductive ability and offspring survival in female mice. Toxicology 2019; 427:152284. [PMID: 31476334 DOI: 10.1016/j.tox.2019.152284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/26/2019] [Accepted: 08/29/2019] [Indexed: 12/12/2022]
Abstract
Sodium nitrite (NaNO2) is an industrial chemical that is frequently used as a food additive to prevent botulism and enhance glossiness, such as curing meat. In addition, in some regions, water source NaNO2 concentrations exceed standard regulatory levels. Whether the excessive intake of NaNO2 has toxic effects on female fertility and fetal development remain unknown. In this study, we administered ICR mice control saline, low-dose NaNO2 (60 mg/kg/day), or high-dose NaNO2 (120 mg/kg/day) by intragastric gavage for 21 days. We then assessed oocyte morphology, spindle-chromosome dynamics, mitochondrial distribution, ATP content, apoptotic cell numbers, DNA damage levels, histone modifications, reactive oxygen species (ROS) levels, and offspring survival. Results showed that NaNO2 treatment decreased oocyte number, impaired polar body extrusion, and increased zona pellucida thickness in oocytes. Furthermore, NaNO2 disrupted MII spindle integrity, caused abnormal mitochondrial distribution, decreased ATP content, and increased levels of ROS and H3K4me2. Moreover, the number of oocytes in early stages of apoptosis and with levels of DNA damage increased in NaNO2-treated mice along with decreased offspring numbers and survival rates. We demonstrated the negative effects of NaNO2 on female reproductive abilities in mice.
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Ning J, Luo X, Wang M, Li J, Liu D, Rong H, Chen D, Wang J. Ultrasensitive Electrochemical Sensor Based on Polyelectrolyte Composite Film Decorated Glassy Carbon Electrode for Detection of Nitrite in Curing Food at Sub-Micromolar Level. Molecules 2018; 23:molecules23102580. [PMID: 30304828 PMCID: PMC6222513 DOI: 10.3390/molecules23102580] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 09/28/2018] [Accepted: 10/05/2018] [Indexed: 01/26/2023] Open
Abstract
To ensure food quality and safety, developing cost-effective, rapid and precision analytical techniques for quantitative detection of nitrite is highly desirable. Herein, a novel electrochemical sensor based on the sodium cellulose sulfate/poly (dimethyl diallyl ammonium chloride) (NaCS/PDMDAAC) composite film modified glass carbon electrode (NaCS/PDMDAAC/GCE) was proposed toward the detection of nitrite at sub-micromolar level, aiming to make full use of the inherent properties of individual component (biocompatible, low cost, good electrical conductivity for PDMDAAC; non-toxic, abundant raw materials, good film forming ability for NaCS) and synergistic enhancement effect. The NaCS/PDMDAAC/GCE was fabricated by a simple drop-casting method. Electrochemical behaviors of nitrite at NaCS/PDMDAAC/GCE were investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Under optimum conditions, the NaCS/PDMDAAC/GCE exhibits a wide linear response region of 4.0 × 10−8 mol·L−1~1.5 × 10−4 mol·L−1 and a low detection 1imit of 43 nmol·L−1. The NaCS/PDMDAAC shows a synergetic enhancement effect toward the oxidation of nitrite, and the sensing performance is much better than the previous reports. Moreover, the NaCS/PDMDAAC also shows good stability and reproducibility. The NaCS/PDMDAAC/GCE was successfully applied to the determination of nitrite in ham sausage with satisfactory results.
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Affiliation(s)
- Jingheng Ning
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Xin Luo
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Min Wang
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Jiaojiao Li
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Donglin Liu
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Hou Rong
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Donger Chen
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Jianhui Wang
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
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Kakavandi NR, Hasanvand A, Ghazi-Khansari M, Sezavar AH, Nabizadeh H, Parohan M. Maternal dietary nitrate intake and risk of neural tube defects: A systematic review and dose-response meta-analysis. Food Chem Toxicol 2018; 118:287-293. [DOI: 10.1016/j.fct.2018.05.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/09/2018] [Accepted: 05/11/2018] [Indexed: 12/20/2022]
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Ward MH, Jones RR, Brender JD, de Kok TM, Weyer PJ, Nolan BT, Villanueva CM, van Breda SG. Drinking Water Nitrate and Human Health: An Updated Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E1557. [PMID: 30041450 PMCID: PMC6068531 DOI: 10.3390/ijerph15071557] [Citation(s) in RCA: 395] [Impact Index Per Article: 65.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/10/2018] [Accepted: 07/14/2018] [Indexed: 02/07/2023]
Abstract
Nitrate levels in our water resources have increased in many areas of the world largely due to applications of inorganic fertilizer and animal manure in agricultural areas. The regulatory limit for nitrate in public drinking water supplies was set to protect against infant methemoglobinemia, but other health effects were not considered. Risk of specific cancers and birth defects may be increased when nitrate is ingested under conditions that increase formation of N-nitroso compounds. We previously reviewed epidemiologic studies before 2005 of nitrate intake from drinking water and cancer, adverse reproductive outcomes and other health effects. Since that review, more than 30 epidemiologic studies have evaluated drinking water nitrate and these outcomes. The most common endpoints studied were colorectal cancer, bladder, and breast cancer (three studies each), and thyroid disease (four studies). Considering all studies, the strongest evidence for a relationship between drinking water nitrate ingestion and adverse health outcomes (besides methemoglobinemia) is for colorectal cancer, thyroid disease, and neural tube defects. Many studies observed increased risk with ingestion of water nitrate levels that were below regulatory limits. Future studies of these and other health outcomes should include improved exposure assessment and accurate characterization of individual factors that affect endogenous nitrosation.
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Affiliation(s)
- Mary H Ward
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Dr. Room 6E138, Rockville, MD 20850, USA.
| | - Rena R Jones
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Dr. Room 6E138, Rockville, MD 20850, USA.
| | - Jean D Brender
- Department of Epidemiology and Biostatistics, Texas A&M University, School of Public Health, College Station, TX 77843, USA.
| | - Theo M de Kok
- Department of Toxicogenomics, GROW-school for Oncology and Developmental Biology, Maastricht University Medical Center, P.O Box 616, 6200 MD Maastricht, The Netherlands.
| | - Peter J Weyer
- The Center for Health Effects of Environmental Contamination, The University of Iowa, 455 Van Allen Hall, Iowa City, IA 52242, USA.
| | - Bernard T Nolan
- U.S. Geological Survey, Water Mission Area, National Water Quality Program, 12201 Sunrise Valley Drive, Reston, VA 20192, USA.
| | - Cristina M Villanueva
- ISGlobal, 08003 Barcelona, Spain.
- IMIM (Hospital del Mar Medical Research Institute), 08003 Barcelona, Spain.
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain.
- CIBER Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain.
| | - Simone G van Breda
- Department of Toxicogenomics, GROW-school for Oncology and Developmental Biology, Maastricht University Medical Center, P.O Box 616, 6200 MD Maastricht, The Netherlands.
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Basak AK, Chatterjee T, Ghosh SK, Chakravarty A. Impacts of dietary exposure to sodium or potassium salts of nitrate and nitrite on the development of Drosophila melanogaster. Interdiscip Toxicol 2017; 10:70-78. [PMID: 30123041 PMCID: PMC6096860 DOI: 10.1515/intox-2017-0012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 10/25/2017] [Indexed: 12/27/2022] Open
Abstract
The effects of four food additives, namely sodium nitrite (NaNO2), sodium nitrate (NaNO3), potassium nitrite (KNO2), and potassium nitrate (KNO3), on animal development were evaluated by using Drosophila melanogster, a model organism. Adult male and female flies were allowed to breed in culture medium, each containing one of 4 concentrations, i.e.10, 20, 30 or 40 mM of the above mentioned salts. The concentration of 40 mM, NaNO2 and KNO2 completely arrested the development of the flies. Of the different concentrations of the four salts tested, exposure of flies to 30 mM NaNO2 exhibited only significant delays in the initial appearances of third instar larvae, pupae and young adults, along with huge reduction in the number of pupae and young adults compared to controls. Rearrangements like inversions, deletion looping, regional shrinking, as well as highly enlarged puffing, etc. were also observed in the polytene chromosomes of the third instar larvae exposed to 30 mM NaNO2. Developmental outcomes of the flies exposed to varying concentrations of NaNO3 and KNO3 did not differ significantly from the controls. Owing to the extensive genetic homology between Drosophila and human and the successful uses of this fly as models in developmental and toxicological studies, we speculate that the experimental results exhibited by this organism in our study strongly advocate for abstaining from the dietary use of NaNO2 and KNO2 during human pregnancies to avoid possible negative developmental outcomes.
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Affiliation(s)
- Ashim Kumar Basak
- Dept. of Molecular Biology, Institute of Genetic Engineering, 30 Thakurhat Road, Kolkata-700128, West Bengal, India
| | - Tridip Chatterjee
- Dept. of Molecular Biology, Institute of Genetic Engineering, 30 Thakurhat Road, Kolkata-700128, West Bengal, India
- Dept. of Human Genetics, Institute of Genetic Medicine and Genomic Science, 30A Thakurhat Road, Kolkata-700128, West Bengal, India
| | - Swapan Kumar Ghosh
- Molecular Mycopathology Lab, Department of Botany, R K Mission VC College, Rahara, Kolkata 700118, India
| | - Amit Chakravarty
- Dept. of Molecular Biology, Institute of Genetic Engineering, 30 Thakurhat Road, Kolkata-700128, West Bengal, India
- Dept. of Human Genetics, Institute of Genetic Medicine and Genomic Science, 30A Thakurhat Road, Kolkata-700128, West Bengal, India
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Cai M, Chai X, Wang X, Wang T. An Acid-Inert Fluorescent Probe for the Detection of Nitrite. J Fluoresc 2017; 27:1365-1371. [DOI: 10.1007/s10895-017-2071-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/02/2017] [Indexed: 01/18/2023]
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Schullehner J, Stayner L, Hansen B. Nitrate, Nitrite, and Ammonium Variability in Drinking Water Distribution Systems. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:E276. [PMID: 28282914 PMCID: PMC5369112 DOI: 10.3390/ijerph14030276] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 02/27/2017] [Accepted: 03/05/2017] [Indexed: 11/17/2022]
Abstract
Accurate assessments of exposure to nitrate in drinking water is a crucial part of epidemiological studies investigating long-term adverse human health effects. However, since drinking water nitrate measurements are usually collected for regulatory purposes, assumptions on (1) the intra-distribution system variability and (2) short-term (seasonal) concentration variability have to be made. We assess concentration variability in the distribution system of nitrate, nitrite, and ammonium, and seasonal variability in all Danish public waterworks from 2007 to 2016. Nitrate concentrations at the exit of the waterworks are highly correlated with nitrate concentrations within the distribution net or at the consumers' taps, while nitrite and ammonium concentrations are generally lower within the net compared with the exit of the waterworks due to nitrification. However, nitrification of nitrite and ammonium in the distribution systems only results in a relatively small increase in nitrate concentrations. No seasonal variation for nitrate, nitrite, or ammonium was observed. We conclude that nitrate measurements taken at the exit of the waterworks are suitable to calculate exposures for all consumers connected to that waterworks and that sampling frequencies in the national monitoring programme are sufficient to describe temporal variations in longitudinal studies.
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Affiliation(s)
- Jörg Schullehner
- Geological Survey of Denmark and Greenland (GEUS), C.F. Møllers Allé 8, 8000 Aarhus C, Denmark.
- National Centre for Register-Based Research, Department of Economics and Business Economics, School of Business and Social Sciences, Aarhus University, Fuglesangs Allé 4, 8210 Aarhus V, Denmark.
| | - Leslie Stayner
- School of Public Health, Epidemiology and Biostatistics Division, University of Illinois at Chicago, 1603 W. Taylor Street, Chicago, IL 60612, USA.
| | - Birgitte Hansen
- Geological Survey of Denmark and Greenland (GEUS), C.F. Møllers Allé 8, 8000 Aarhus C, Denmark.
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37
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Xiong Y, Li M, Liu H, Xuan Z, Yang J, Liu D. Janus PEGylated gold nanoparticles: a robust colorimetric probe for sensing nitrite ions in complex samples. NANOSCALE 2017; 9:1811-1815. [PMID: 28102403 DOI: 10.1039/c6nr07879f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
We presented a Janus PEGylated AuNP probe where PEGs and recognition ligands (e.g., 4-aminobenzenethiol, 4-ABT) were asymmetrically functionalized on an AuNP. With this design, the probes showed high colloidal stability, signal robustness, specificity, and sufficient sensitivity in the determination of NO2- in various complex samples.
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Affiliation(s)
- Yanmei Xiong
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Mingmin Li
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Huiqiao Liu
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Zhihong Xuan
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Jie Yang
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Dingbin Liu
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, China. and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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Abstract
Agricultural compounds have been detected in drinking water, some of which are teratogens in animal models. The most commonly detected agricultural compounds in drinking water include nitrate, atrazine, and desethylatrazine. Arsenic can also be an agricultural contaminant, although arsenic often originates from geologic sources. Nitrate has been the most studied agricultural compound in relation to prenatal exposure and birth defects. In several case-control studies published since 2000, women giving birth to babies with neural tube defects, oral clefts, and limb deficiencies were more likely than control mothers to be exposed to higher concentrations of drinking water nitrate during pregnancy. Higher concentrations of atrazine in drinking water have been associated with abdominal defects, gastroschisis, and other defects. Elevated arsenic in drinking water has also been associated with birth defects. Since these compounds often occur as mixtures, it is suggested that future research focus on the impact of mixtures, such as nitrate and atrazine, on birth defects.
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Affiliation(s)
- Jean D Brender
- Department of Epidemiology and Biostatistics, School of Public Health, Texas A&M Health Science Center, 212 Adriance Lab Rd, TAMU MS 1266, College Station, TX, 77843, USA.
| | - Peter J Weyer
- Center for Health Effects of Environmental Contamination, University of Iowa, 455 Van Allen Hall, Iowa City, IA, 52242, USA
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Stayner LT, Almberg K, Jones R, Graber J, Pedersen M, Turyk M. Atrazine and nitrate in drinking water and the risk of preterm delivery and low birth weight in four Midwestern states. ENVIRONMENTAL RESEARCH 2017; 152:294-303. [PMID: 27816866 DOI: 10.1016/j.envres.2016.10.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 10/21/2016] [Accepted: 10/23/2016] [Indexed: 05/14/2023]
Abstract
BACKGROUND Atrazine and nitrate are common contaminants in water, and there is limited evidence that they are associated with adverse birth outcomes. The objective of this study was to examine whether atrazine and nitrate in water are associated with an increased risk of preterm delivery (PTD) and term low birth weight (LBW). METHODS The study included a total of 134,258 singletons births born between January 1, 2004 and December 31, 2008 from 46 counties in four Midwestern states with public water systems that were included in the U.S. Environmental Protection Agency (EPA)'s atrazine monitoring program (AMP). Counties with a population of >300,000 were eliminated from the analyses in order to avoid confounding by urbanicity. Monthly child's sex, race and Hispanic ethnicity specific data were obtained from the states for estimating rates of PTD (<37 weeks) and very preterm (VPTD, <32 weeks), term LBW (<2.5kg among infants born at term) and very low birth weight (VLBW, <1.5kg). The rates were linked with county specific monthly estimates of the concentration of atrazine and nitrate in finished water. Multivariable negative binomial models were fitted to examine the association between the exposures and the adverse birth outcomes. Models were fitted with varying restrictions on the percentage of private well usage in the counties in order to limit the degree of exposure misclassification. RESULTS Estimated water concentrations of atrazine (mean=0.42 ppb) and nitrate (mean=0.95ppm) were generally low. Neither contaminant was associated with an increased risk of term LBW. Atrazine exposure was associated with a significant increased rate of PTD when well use was restricted to 10% and the exposure was averaged over 4-6 months prior to birth (Rate Ratio for 1ppm increase [RR1ppm]=1.08, 95%CI=1.05,1.11) or over 9 months prior to birth (RR1ppm=1.10, 95%CI=1.01,1.20). Atrazine exposure was also associated with an increased rate of VPTD when when well use was restricted to 10% and the exposure was averaged over 7-9 months prior to birth (RR1ppm=1.19, 95%CI=1.04,1.36). Exposure to nitrate was significantly associated with an increased rate of VPTD (RR1ppm=1.08, 95%CI=1.02,1.15) and VLBW (RR1ppm=1.17, 95%CI=1.08,1.25) when well use was restricted to 20% and the exposure was averaged over 9 months prior to birth. CONCLUSION The positive and negative findings from our study need to be interpreted cautiously given its ecologic design, and limitations in the data for the exposures and other risk factors. Nonetheless, our findings do raise concerns about the potential adverse effects of these common water contaminants on human development and health, and the adequacy of current regulatory standards. Further studies of these issues are needed with individual level outcome data and more refined estimates of exposure.
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Affiliation(s)
- Leslie Thomas Stayner
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, Illinois, United States.
| | - Kirsten Almberg
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, Illinois, United States
| | - Rachael Jones
- Division of Environmental Health Sciences, University of Illinois at Chicago, School of Public Health, Chicago, Illinois, United States
| | - Judith Graber
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, Illinois, United States; Environmental and Occupational Health Sciences Institute, Rutgers School of Public Health, Department of Epidemiology, New Brunswick, New Jersey, United States
| | - Marie Pedersen
- Centre of Epidemiology and Screening, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Mary Turyk
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, School of Public Health, Chicago, Illinois, United States
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Chen Y, Cui Z, Wang L, Liu H, Fan W, Deng J, Deng J. The impairment of learning and memory and synaptic loss in mouse after chronic nitrite exposure. ENVIRONMENTAL TOXICOLOGY 2016; 31:1720-1730. [PMID: 26218639 PMCID: PMC5516168 DOI: 10.1002/tox.22174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 07/05/2015] [Accepted: 07/06/2015] [Indexed: 03/27/2024]
Abstract
The objective of this study is to understand the impairment of learning and memory in mouse after chronic nitrite exposure. The animal model of nitrite exposure in mouse was created with the daily intubation of nitrite in adult healthy male mice for 3 months. Furthermore, the mouse's learning and memory abilities were tested with Morris water maze, and the expression of Synaptophysin and γ-Synuclein was visualized with immunocytochemistry and Western blot. Our results showed that nitrite exposure significantly prolonged the escape latency period (ELP) and decreased the values of the frequency across platform (FAP) as well as the accumulative time in target quadrant (ATITQ) compared to control, in dose-dependent manner. In addition, after nitrite exposure, synaptophysin (SYN) positive buttons in the visual cortex was reduced, in contrast the increase of γ-synuclein positive cells. The results above were supported by Western blot as well. We conclude that nitrite exposure could lead to a decline in mice's learning and memory. The overexpression of γ-synuclein contributed to the synaptic loss, which is most likely the cause of learning and memory impairment. © 2015 Wiley Periodicals, Inc. Environ Toxicol 31: 1720-1730, 2016.
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Affiliation(s)
- Yongfang Chen
- Institute of Neurobiology, School of Nursing, Henan UniversityKaifeng475004People's Republic of China
- Luohe Medical CollegeLuohe462002People's Republic of China
| | - Zhanjun Cui
- Institute of Neurobiology, School of Nursing, Henan UniversityKaifeng475004People's Republic of China
| | - Lai Wang
- Institute of Neurobiology, School of Nursing, Henan UniversityKaifeng475004People's Republic of China
| | - Hongliang Liu
- Institute of Neurobiology, School of Nursing, Henan UniversityKaifeng475004People's Republic of China
| | - Wenjuan Fan
- Institute of Neurobiology, School of Nursing, Henan UniversityKaifeng475004People's Republic of China
| | - Jinbo Deng
- Institute of Neurobiology, School of Nursing, Henan UniversityKaifeng475004People's Republic of China
| | - Jiexin Deng
- Institute of Neurobiology, School of Nursing, Henan UniversityKaifeng475004People's Republic of China
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Zirkle KW, Nolan BT, Jones RR, Weyer PJ, Ward MH, Wheeler DC. Assessing the relationship between groundwater nitrate and animal feeding operations in Iowa (USA). THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 566-567:1062-1068. [PMID: 27277210 PMCID: PMC4980257 DOI: 10.1016/j.scitotenv.2016.05.130] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 05/17/2016] [Accepted: 05/18/2016] [Indexed: 05/14/2023]
Abstract
Nitrate-nitrogen is a common contaminant of drinking water in many agricultural areas of the United States of America (USA). Ingested nitrate from contaminated drinking water has been linked to an increased risk of several cancers, specific birth defects, and other diseases. In this research, we assessed the relationship between animal feeding operations (AFOs) and groundwater nitrate in private wells in Iowa. We characterized AFOs by swine and total animal units and type (open, confined, or mixed), and we evaluated the number and spatial intensities of AFOs in proximity to private wells. The types of AFO indicate the extent to which a facility is enclosed by a roof. Using linear regression models, we found significant positive associations between the total number of AFOs within 2km of a well (p trend <0.001), number of open AFOs within 5km of a well (p trend <0.001), and number of mixed AFOs within 30km of a well (p trend <0.001) and the log nitrate concentration. Additionally, we found significant increases in log nitrate in the top quartiles for AFO spatial intensity, open AFO spatial intensity, and mixed AFO spatial intensity compared to the bottom quartile (0.171log(mg/L), 0.319log(mg/L), and 0.541log(mg/L), respectively; all p<0.001). We also explored the spatial distribution of nitrate-nitrogen in drinking wells and found significant spatial clustering of high-nitrate wells (>5mg/L) compared with low-nitrate (≤5mg/L) wells (p=0.001). A generalized additive model for high-nitrate status identified statistically significant areas of risk for high levels of nitrate. Adjustment for some AFO predictor variables explained a portion of the elevated nitrate risk. These results support a relationship between animal feeding operations and groundwater nitrate concentrations and differences in nitrate loss from confined AFOs vs. open or mixed types.
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Affiliation(s)
- Keith W Zirkle
- Department of Biostatistics, Virginia Commonwealth University, 830 East Main St., Richmond, VA 23298, United States
| | | | - Rena R Jones
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, United States
| | - Peter J Weyer
- Center for Health Effects of Environmental Contamination, the University of Iowa, Iowa City, Iowa, United States
| | - Mary H Ward
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, United States
| | - David C Wheeler
- Department of Biostatistics, Virginia Commonwealth University, 830 East Main St., Richmond, VA 23298, United States
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Jarosz J, White C, Grow WA. Sodium nitrate decreases agrin-induced acetylcholine receptor clustering. BMC Pharmacol Toxicol 2016; 17:20. [PMID: 27132129 PMCID: PMC4852099 DOI: 10.1186/s40360-016-0062-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 04/14/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Humans are exposed to nitrate predominantly through diet with peak plasma concentrations within an hour after ingestion, but additional exposure is obtained from the environment, and minimally through de novo synthesis. Higher nitrate consumption has been associated with methemoglobinemia, spontaneous abortions, atherosclerosis, myocardial ischemia, septic and distressed lung, inflammatory bowel disease, amyotrophic lateral sclerosis, and neural tube defects. However, skeletal muscle development has not been examined. METHODS C2C12 skeletal muscle cell cultures were maintained, myoblasts were fused into myotubes, and then cultures were exposed to motor neuron derived agrin to enhance acetylcholine receptor (AChR) clustering. Untreated cultures were compared with cultures exposed to sodium nitrate at concentrations ranging from 10 ng/mL-100 μg/mL. RESULTS The results reported here demonstrate that 1 μg/mL sodium nitrate was sufficient to decrease the frequency of agrin-induced AChR clustering without affecting myotube formation. In addition, concentrations of sodium nitrate of 1 μg/mL or 100 μg/mL decreased gene expression of the myogenic transcription factor myogenin and AChR in correlation with the agrin-induced AChR clustering data. CONCLUSIONS These results reveal that sodium nitrate decreases the frequency of agrin-induced AChR clustering by a mechanism that includes myogenin and AChR gene expression. As a consequence sodium nitrate may pose a risk for skeletal muscle development and subsequent neuromuscular synapse formation in humans.
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Affiliation(s)
- Jess Jarosz
- Department of Anatomy, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308 USA
| | - Cullen White
- Department of Anatomy, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308 USA
| | - Wade A. Grow
- Department of Anatomy, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308 USA
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43
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Highly selective and sensitive fluorescent probe for the detection of nitrite. Talanta 2016; 152:155-61. [DOI: 10.1016/j.talanta.2016.01.059] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/22/2016] [Accepted: 01/28/2016] [Indexed: 01/17/2023]
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Anuradha A, Latham K, Bhosale SV. Selective detection of nitrite ion by an AIE-active tetraphenylethene dye through a reduction step in aqueous media. RSC Adv 2016. [DOI: 10.1039/c6ra06800f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
We report selective and sensitive nitrite sensor in water based on AIE-active tetraphenylethene bearing amino functionality.
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Affiliation(s)
| | - Kay Latham
- School of Applied Sciences
- RMIT University
- Melbourne
- Australia
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45
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Zhu X, Kou F, Xu H, Yang G. A rapid and sensitive electrochemiluminescent sensor for nitrites based on C3N4 quantum dots on C3N4 nanosheets. RSC Adv 2016. [DOI: 10.1039/c6ra22527f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nitrite, an inorganic anion, is widely applied in various fields.
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Affiliation(s)
- Xi Zhu
- College of Life Sciences
- Fujian Agriculture and Forestry University
- Fuzhou
- P. R. China
| | - Fangxia Kou
- College of Life Sciences
- Fujian Agriculture and Forestry University
- Fuzhou
- P. R. China
| | - Huifeng Xu
- Academy of Integrative Medicine
- Fujian University of Traditional Chinese Medicine
- Fuzhou
- P. R. China
| | - Guidi Yang
- College of Life Sciences
- Fujian Agriculture and Forestry University
- Fuzhou
- P. R. China
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Benedum CM, Yazdy MM, Mitchell AA, Werler MM. Impact of Periconceptional Use of Nitrosatable Drugs on the Risk of Neural Tube Defects. Am J Epidemiol 2015; 182:675-84. [PMID: 26424074 DOI: 10.1093/aje/kwv126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 05/01/2015] [Indexed: 01/17/2023] Open
Abstract
Nitrosatable drugs (NSDs) can, in the presence of nitrosating agents and highly acidic conditions, form N-nitroso compounds that have been found to be teratogenic in animal models. Using data from the Slone Epidemiology Center Birth Defects Study collected from 1998 to 2012, we compared maternal periconceptional NSD use between 334 neural tube defect cases and 7,619 nonmalformed controls. We categorized NSDs according to their functional group (secondary amine, tertiary amine, and amide). With logistic regression models, we estimated adjusted odds ratios and 95% confidence intervals. Neural tube defect risk was associated with maternal periconceptional use of secondary (adjusted odds ratio (aOR) = 1.7, 95% confidence interval (CI): 1.1, 2.4) and tertiary (aOR = 1.7, 95% CI: 1.2, 2.5) amines; an association was observed for amides, but the 95% confidence interval included the null (aOR = 1.4, 95% CI: 0.7, 2.5). Within the secondary amine group, elevated adjusted odds ratios were observed for 3 drugs but were null for the remaining medications. Increases in risk were observed for both strata of folic acid intake (<400 µg/day, ≥400 µg/day), with a slightly higher risk in the ≥400-µg/day stratum. Our findings support previously reported positive associations between neural tube defects and periconceptional exposure to NSDs containing a secondary or tertiary amine or amide.
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Ren W, Mura S, Irudayaraj JMK. Modified graphene oxide sensors for ultra-sensitive detection of nitrate ions in water. Talanta 2015; 143:234-239. [PMID: 26078154 DOI: 10.1016/j.talanta.2015.05.073] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/18/2015] [Accepted: 05/22/2015] [Indexed: 11/25/2022]
Abstract
Nitrate ions is a very common contaminant in drinking water and has a significant impact on the environment, necessitating routine monitoring. Due to its chemical and physical properties, it is hard to directly detect nitrate ions with high sensitivity in a simple and inexpensive manner. Herein with amino group modified graphene oxide (GO) as a sensing element, we show a direct and ultra-sensitive method to detect nitrate ions, at a lowest detected concentration of 5 nM in river water samples, much lower than the reported methods based on absorption spectroscopy. Furthermore, unlike the reported strategies based on absorption spectroscopy wherein the nitrate concentration is determined by monitoring an increase in aggregation of gold nanoparticles (GNPs), our method evaluates the concentration of nitrate ions based on reduction in aggregation of GNPs for monitoring in real samples. To improve sensitivity, several optimizations were performed, including the assessment of the amount of modified GO required, concentration of GNPs and incubation time. The detection methodology was characterized by zeta potential, TEM and SEM. Our results indicate that an enrichment of modified GO with nitrate ions contributed to excellent sensitivity and the entire detection procedure could be completed within 75 min with only 20 μl of sample. This simple and rapid methodology was applied to monitor nitrate ions in real samples with excellent sensitivity and minimum pretreatment. The proposed approach paves the way for a novel means to detect anions in real samples and highlights the potential of GO based detection strategy for water quality monitoring.
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Affiliation(s)
- Wen Ren
- Department of Agricultural and Biological Engineering, Bindley Bioscience Center, Purdue University, West Lafayette, IN 47907, United States
| | - Stefania Mura
- University of Sassari, Porto Conte Ricerche, Loc. Tramariglio, 07041 Alghero, Italy
| | - Joseph M K Irudayaraj
- Department of Agricultural and Biological Engineering, Bindley Bioscience Center, Purdue University, West Lafayette, IN 47907, United States.
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Khdary NH, Gasim AE, Muriani ME, Alshehrie AA. Modeling Distribution of Selective Ions in Urban and Rural Areas Using Geographical Information System. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/jwarp.2015.76041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Habermeyer M, Roth A, Guth S, Diel P, Engel KH, Epe B, Fürst P, Heinz V, Humpf HU, Joost HG, Knorr D, de Kok T, Kulling S, Lampen A, Marko D, Rechkemmer G, Rietjens I, Stadler RH, Vieths S, Vogel R, Steinberg P, Eisenbrand G. Nitrate and nitrite in the diet: how to assess their benefit and risk for human health. Mol Nutr Food Res 2014; 59:106-28. [PMID: 25164923 DOI: 10.1002/mnfr.201400286] [Citation(s) in RCA: 144] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/29/2014] [Accepted: 08/04/2014] [Indexed: 12/15/2022]
Abstract
Nitrate is a natural constituent of the human diet and an approved food additive. It can be partially converted to nitrogen monoxide, which induces vasodilation and thereby decreases blood pressure. This effect is associated with a reduced risk regarding cardiovascular disease, myocardial infarction, and stroke. Moreover, dietary nitrate has been associated with beneficial effects in patients with gastric ulcer, renal failure, or metabolic syndrome. Recent studies indicate that such beneficial health effects due to dietary nitrate may be achievable at intake levels resulting from the daily consumption of nitrate-rich vegetables. N-nitroso compounds are endogenously formed in humans. However, their relevance for human health has not been adequately explored up to now. Nitrate and nitrite are per se not carcinogenic, but under conditions that result in endogenous nitrosation, it cannot be excluded that ingested nitrate and nitrite may lead to an increased cancer risk and may probably be carcinogenic to humans. In this review, the known beneficial and detrimental health effects related to dietary nitrate/nitrite intake are described and the identified gaps in knowledge as well as the research needs required to perform a reliable benefit/risk assessment in terms of long-term human health consequences due to dietary nitrate/nitrite intake are presented.
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Affiliation(s)
- Michael Habermeyer
- Department of Food Chemistry and Toxicology, University of Kaiserslautern, Kaiserslautern, Germany**
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Almberg KS, Turyk M, Jones RM, Anderson R, Graber J, Banda E, Waller LA, Gibson R, Stayner LT. A study of adverse birth outcomes and agricultural land use practices in Missouri. ENVIRONMENTAL RESEARCH 2014; 134:420-6. [PMID: 25261770 DOI: 10.1016/j.envres.2014.06.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 03/17/2014] [Accepted: 06/17/2014] [Indexed: 05/16/2023]
Abstract
BACKGROUND Missouri is an agriculturally intensive state, primarily growing corn and soybeans with additional rice and cotton farming in some southeastern counties. Communities located in close proximity to pesticide-treated fields are known to have increased exposure to pesticides and may be at increased risk of adverse birth outcomes. The study aims were to assess the relationship between county-level measures of crop-specific agricultural production and adverse birth outcomes in Missouri and to evaluate the most appropriate statistical methodologies for doing so. METHODS Potential associations between county level data on the densities of particular crops and low birth weight and preterm births were examined in Missouri between 2004-2006. Covariates considered as potential confounders and effect modifiers included gender, maternal race/ethnicity, maternal age at delivery, maternal smoking, access to prenatal care, quarter of birth, county median household income, and population density. These data were analyzed using both standard Poisson regression models as well as models allowing for temporal and spatial correlation of the data. RESULTS There was no evidence of an association between corn, soybean, or wheat densities with low birth weight or preterm births. Significant positive associations between both rice and cotton density were observed with both low birth weight and preterm births. Model results were consistent using Poisson and alternative models accounting for spatial and temporal variability. CONCLUSIONS The associations of rice and cotton with low birth weight and preterm births warrant further investigation. Study limitations include the ecological study design and limited available covariate information.
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Affiliation(s)
- Kirsten S Almberg
- University of Illinois at Chicago, School of Public Health, Epidemiology and Biostatistics Division, 1603W. Taylor Street, Chicago, IL 60607, United States of America.
| | - Mary Turyk
- University of Illinois at Chicago, School of Public Health, Epidemiology and Biostatistics Division, 1603W. Taylor Street, Chicago, IL 60607, United States of America.
| | - Rachael M Jones
- University of Illinois at Chicago, School of Public Health, Environmental and Occupational Health Sciences Division, 2121W. Taylor Street, Chicago, IL 60612, United States of America.
| | - Robert Anderson
- University of Illinois at Chicago, School of Public Health, Epidemiology and Biostatistics Division, 1603W. Taylor Street, Chicago, IL 60607, United States of America.
| | - Judith Graber
- University of Illinois at Chicago, School of Public Health, Epidemiology and Biostatistics Division, 1603W. Taylor Street, Chicago, IL 60607, United States of America; Environmental and Occupational Health Sciences Institute, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, United States of America.
| | - Elizabeth Banda
- University of Illinois at Chicago, School of Public Health, Epidemiology and Biostatistics Division, 1603W. Taylor Street, Chicago, IL 60607, United States of America.
| | - Lance A Waller
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, Atlanta, GA 30322, United States of America.
| | - Roger Gibson
- Missouri Department of Health and Senior Services, Division of Community and Public Health, Bureau of Environmental Health, P.O. Box 570, Jefferson City, MO 65109, United States of America.
| | - Leslie T Stayner
- University of Illinois at Chicago, School of Public Health, Epidemiology and Biostatistics Division, 1603W. Taylor Street, Chicago, IL 60607, United States of America
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