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White JT, Kovar E, Chambers TM, Sheth KR, Peckham-Gregory EC, O'Neill M, Langlois PH, Jorgez CJ, Lupo PJ, Seth A. Hypospadias Risk from Maternal Residential Exposure to Heavy Metal Hazardous Air Pollutants. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E930. [PMID: 30875870 PMCID: PMC6466330 DOI: 10.3390/ijerph16060930] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 12/21/2022]
Abstract
Objective: Investigate whether residential prenatal exposure to heavy metal hazardous air pollutants (HMHAPs) is associated with an increased risk of hypospadias. Methods: Data on non-syndromic hypospadias cases (n = 8981) and control patients delivered in Texas were obtained from the Texas Birth Defects Registry and matched 1:10 by birth year. Average exposure concentrations of HMHAPs were obtained from the 2005 U.S. Environmental Protection Agency National-Scale Air Toxics Assessment and categorized into quintiles. Odds ratios and 95% confidence intervals were estimated. STROBE reporting guidelines were followed. Results: We observed associations between hypospadias and prenatal HMHAP exposure. Manganese demonstrated significant increased risk of hypospadias at the medium, medium-high and high exposure quintiles; lead in the medium-high and high exposure quintiles. Cadmium, mercury and nickel demonstrated a significant inverted "U-shaped" association for exposures with significant associations in the medium and medium-high quintiles but not in the medium-low and high quintiles. Arsenic and chromium demonstrated a significant bivalent association for risk of hypospadias in a lower quintile as well as a higher quintile with non-significant intermediate quintiles. Conclusions: Using data from one of the world's largest active surveillance birth defects registries, we identified significant associations between hypospadias and HMHAP exposures. These results should be used in counseling for maternal demographic risk factors as well as avoidance of heavy metals and their sources.
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Affiliation(s)
- Jeffrey T White
- Pediatric Urology, Norton Children's Hospital, Louisville, KY 40207, USA.
- Department of Urology, University of Louisville School of Medicine, Louisville, KY 40202, USA.
| | - Erin Kovar
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Tiffany M Chambers
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Kunj R Sheth
- Scott Department of Urology, Baylor College of Medicine, Houston, TX 77030, USA.
- Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, Houston, TX 77030, USA.
| | - Erin C Peckham-Gregory
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA.
- Department of Pediatrics, Texas Children's Hospital, Houston, TX 77030, USA.
| | - Marisol O'Neill
- Department Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Peter H Langlois
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, TX 78751, USA.
| | - Carolina J Jorgez
- Scott Department of Urology, Baylor College of Medicine, Houston, TX 77030, USA.
- Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, Houston, TX 77030, USA.
| | - Philip J Lupo
- Section of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA.
- Department of Pediatrics, Texas Children's Hospital, Houston, TX 77030, USA.
| | - Abhishek Seth
- Scott Department of Urology, Baylor College of Medicine, Houston, TX 77030, USA.
- Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, Houston, TX 77030, USA.
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Lead absorption mechanisms in bacteria as strategies for lead bioremediation. Appl Microbiol Biotechnol 2018; 102:5437-5444. [PMID: 29736824 DOI: 10.1007/s00253-018-8969-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 03/23/2018] [Accepted: 03/24/2018] [Indexed: 02/04/2023]
Abstract
Bacteria exhibit a number of metabolism-dependent and metabolism-independent processes for the uptake and accumulation of toxic metals. The removal of these metals from environmental sources such as soil, sludge, and wastewaters using microbe-based technologies provide an alternative for their recovery and remediation. Lead (Pb) is a pervasive metal in the environment that adversely affects all living organisms. Many aspects of metal-microbe interactions remain unexploited in biotechnology and further development and application is necessary, particularly to the problem of Pb release into the environment. Thus, this review provides a synopsis of the most important bacterial phenotypes and biochemical attributes that are instrumental in lead bioremediation, along with what is known of their genetic background that can be exploited or improved through genetic engineering. This review also highlights the potential of Pb-resistant bacteria in bringing about detoxification of Pb-contaminated terrestrial and aquatic systems in a highly sustainable and environmental friendly manner, and the existing challenges that still lie in the path to in situ and large-scale bioremediation.
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Neda AN, Fahimeh S, Tahereh ZK, Leila F, Zahra N, Bahman C, Narges CK. Lead Level in Umbilical Cord Blood and its Effects on Newborns Anthropometry. J Clin Diagn Res 2017; 11:SC01-SC04. [PMID: 28764256 PMCID: PMC5535446 DOI: 10.7860/jcdr/2017/24865.10016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 04/11/2017] [Indexed: 11/24/2022]
Abstract
INTRODUCTION High concentration of blood lead is accompanied by adverse health effects on growth of foetus and the newborn. AIM The aim of this study was to determine umbilical cord blood lead level and its relationship with birth weight, length and head circumference of the newborns in Abadan, Iran. MATERIALS AND METHODS In this cross-sectional study, 3 ml blood was collected from the umbilical cord vein in 147 newborns, immediately after the birth. Blood lead was measured using atomic absorption spectrophotometry. Data collection instruments included demographic questionnaire (age of mother, gestational age, newborn gender, job and education of mother) and also data registration form (umbilical cord blood lead concentration, weight, length, and head circumference of newborn). Data was analyzed with SPSS software version 16.0. RESULTS The mean of umbilical cord blood lead was determined 0.65±0.32 µg/dl (0.3-1.35 µg/dl). The decrease of birth weight with increased blood lead level was small and was not statistically significant. There was reverse significant correlation between umbilical cord blood lead level and birth length and head circumference. There was no significant correlation between blood lead and other variables such as age, weight, education and job of mother and gestational age. CONCLUSION Umbilical blood lead level was determined <5 µg/ dl. Excess of umbilical cord blood lead caused decreasing birth weight, length and head circumference of the newborns.
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Affiliation(s)
- Akbari-Nassaji Neda
- MS, Department of Nursing, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Abadan School of Medical Sciences, Abadan, Iran
| | - Sabeti Fahimeh
- MS, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Pediatric Nursing, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
| | - Ziaei Kajbaf Tahereh
- Associate Professor, Department of Pediatrics, Aboozar Children’s Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Fakharzadeh Leila
- MS, Department of Nursing, Abadan School of Medical Sciences, Abadan, Iran
| | - Nazari Zahra
- MS, Nanotechnology Research Center, Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Cheraghian Bahman
- PhD Scholar, Department of Biostatistics and Epidemiology, Research Center for Infectious Diseases of Digestive System, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Cham Kouri Narges
- PhD Student, Department of Pharmacology and Toxicology, Abadan School of Medical Sciences, Abadan, Iran
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Roth CK, Puttbrese A, Ottley C. Thalassemia Syndromes in Pregnancy. Nurs Womens Health 2016; 20:415-20. [PMID: 27520605 DOI: 10.1016/j.nwh.2016.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Thalassemia syndromes are becoming more common in the United States as the population becomes more diverse. To provide appropriate care to this patient population, nurses must know that thalassemia syndromes are classified into two main types, α-thalassemia and β-thalassemia. α-Thalassemia is further delineated into four clinical patterns: silent carrier state, mild α-thalassemia, hemoglobin H disease, and hydrops fetalis. Understanding each of these complex anemias and their potential effects on a pregnant woman and her fetus will enable nurses to interpret these women's unique laboratory test results. Intervention when necessary with appropriate treatment may lead to optimal outcomes for women and newborns.
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Assi MA, Hezmee MNM, Haron AW, Sabri MYM, Rajion MA. The detrimental effects of lead on human and animal health. Vet World 2016; 9:660-71. [PMID: 27397992 PMCID: PMC4937060 DOI: 10.14202/vetworld.2016.660-671] [Citation(s) in RCA: 214] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 05/21/2016] [Indexed: 12/13/2022] Open
Abstract
Lead, a chemical element in the carbon group with symbol Pb (from Latin: Plumbum, meaning “the liquid silver”) and has an atomic number 82 in the periodic table. It was the first element that was characterized by its kind of toxicity. In animal systems, lead (Pb) has been incriminated in a wide spectrum of toxic effects and it is considered one of the persistent ubiquitous heavy metals. Being exposed to this metal could lead to the change of testicular functions in human beings as well as in the wildlife. The lead poising is a real threat to the public health, especially in the developing countries. Accordingly, great efforts on the part of the occupational and public health have been taken to curb the dangers of this metal. Hematopoietic, renal, reproductive, and central nervous system are among the parts of the human body and systems that are vulnerable toward the dangers following exposure to high level of Pb. In this review, we discussed the massive harmful impact that leads acetate toxicity has on the animals and the worrying fact that this harmful toxicant can be found quite easily in the environment and abundance. Highlighting its (Pb) effects on various organs in the biological systems, its economic, as well as scientific importance, with the view to educate the public/professionals who work in this area. In this study, we focus on the current studies and research related to lead toxicity in animals and also to a certain extent toward human as well.
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Affiliation(s)
- Mohammed Abdulrazzaq Assi
- Department of Community Health, College of Health and Medical Techniques, Al_Furat Al_Awsat Technical University, Iraq; Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Mohd Noor Mohd Hezmee
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Abd Wahid Haron
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Mohd Yusof Mohd Sabri
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Mohd Ali Rajion
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
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Bakhireva LN, Rowland AS, Young BN, Cano S, Phelan ST, Artyushkova K, Rayburn WF, Lewis J. Sources of potential lead exposure among pregnant women in New Mexico. Matern Child Health J 2013; 17:172-9. [PMID: 22362260 DOI: 10.1007/s10995-012-0963-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The objectives of this study were to ascertain the prevalence and potential sources of lead exposure among pregnant women residing in a socially-disadvantaged immigrant community in Albuquerque, New Mexico. Pregnant women (n = 140) receiving prenatal care through a community clinic participated in a structured interview and screening to measure their blood lead levels (BLLs). Potential sources of lead exposure were ascertained by the CDC and New Mexico Department of Health questionnaires. Self-reported risk factors were examined as predictors of BLLs using multiple linear regression and partial least squares discriminant analysis. Most patients were Spanish-speaking (88.6%), Latina (95%), foreign-born (87.1%), lacked health insurance (86.4%), and had a high school education or lower (84.3%). While risk factors were prevalent in this population, only three women (2.1%) had BLLs ≥3 μg/dL. Results of multivariate analyses demonstrated that pica symptoms in pregnancy, history of elevated BLLs before pregnancy, use of non-commercial pottery, and living in older houses were important predictors of elevated BLLs. Although the prevalence of other risk factors relevant to immigrant communities (i.e., use of traditional/folk remedies and cosmetics, seasonings and food products from Mexico) was high, they were not predictive of elevated BLLs. Clinics providing prenatal care to immigrant Hispanic communities should carefully assess patients' pica symptoms, use of non-commercial pottery, and a history of elevated BLLs. Moreover, additional efforts need to focus on the development of screening questionnaires which better reflect exposures of concern in this population.
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Affiliation(s)
- Ludmila N Bakhireva
- Department of Pharmacy Practice and Administrative Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM 87131, USA.
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Hou S, Yuan L, Jin P, Ding B, Qin N, Li L, Liu X, Wu Z, Zhao G, Deng Y. A clinical study of the effects of lead poisoning on the intelligence and neurobehavioral abilities of children. Theor Biol Med Model 2013; 10:13. [PMID: 23414525 PMCID: PMC3598508 DOI: 10.1186/1742-4682-10-13] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 02/06/2013] [Indexed: 12/04/2022] Open
Abstract
Background Lead is a heavy metal and important environmental toxicant and nerve poison that can destruction many functions of the nervous system. Lead poisoning is a medical condition caused by increased levels of lead in the body. Lead interferes with a variety of body processes and is toxic to many organs and issues, including the central nervous system. It interferes with the development of the nervous system, and is therefore particularly toxic to children, causing potentially permanent neural and cognitive impairments. In this study, we investigated the relationship between lead poisoning and the intellectual and neurobehavioral capabilities of children. Methods The background characteristics of the research subjects were collected by questionnaire survey. Blood lead levels were detected by differential potentiometric stripping analysis (DPSA). Intelligence was assessed using the Gesell Developmental Scale. The Achenbach Child Behavior Checklist (CBCL) was used to evaluate each child’s behavior. Results Blood lead levels were significantly negatively correlated with the developmental quotients of adaptive behavior, gross motor performance, fine motor performance, language development, and individual social behavior (P < 0.01). Compared with healthy children, more children with lead poisoning had abnormal behaviors, especially social withdrawal, depression, and atypical body movements, aggressions and destruction. Conclusion Lead poisoning has adverse effects on the behavior and mental development of 2–4-year-old children, prescribing positive and effective precautionary measures.
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Affiliation(s)
- Shuangxing Hou
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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Lead toxicity in a newborn. J Pediatr Health Care 2011; 25:328-31. [PMID: 21867862 DOI: 10.1016/j.pedhc.2011.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Revised: 03/16/2011] [Accepted: 03/16/2011] [Indexed: 11/22/2022]
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Mielke HW, Covington TP, Mielke PW, Wolman FJ, Powell ET, Gonzales CR. Soil intervention as a strategy for lead exposure prevention: the New Orleans lead-safe childcare playground project. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2011; 159:2071-2077. [PMID: 21131114 DOI: 10.1016/j.envpol.2010.11.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 11/03/2010] [Accepted: 11/07/2010] [Indexed: 05/27/2023]
Abstract
The feasibility of reducing children's exposure to lead (Pb) polluted soil in New Orleans is tested. Childcare centers (median = 48 children) are often located in former residences. The extent of soil Pb was determined by selecting centers in both the core and outlying areas. The initial 558 mg/kg median soil Pb (range 14-3692 mg/kg) decreased to median 4.1 mg/kg (range 2.2-26.1 mg/kg) after intervention with geotextile covered by 15 cm of river alluvium. Pb loading decreased from a median of 4887 μg/m(2) (454 μg/ft(2)) range 603-56650 μg/m(2) (56-5263 μg/ft(2)) to a median of 398 μg/m(2) (37 μg/ft(2)) range 86-980 μg/m(2) (8-91 μg/ft(2)). Multi-Response Permutation Procedures indicate similar (P-values = 0.160-0.231) soil Pb at childcare centers compared to soil Pb of nearby residential communities. At ∼$100 per child, soil Pb and surface loading were reduced within hours, advancing an upstream intervention conceptualization about Pb exposure prevention.
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Affiliation(s)
- Howard W Mielke
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA.
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