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Chen KM, Sun YW, Krebs NM, Reinhart L, Sun D, Liao J, Cook R, Bond PE, Mallery SR, El-Bayoumy K. The Effects of Black Raspberry as a Whole Food-Based Approach on Biomarkers of Oxidative Stress in Buccal Cells and Urine of Smokers. Cancer Prev Res (Phila) 2024; 17:157-167. [PMID: 38286439 PMCID: PMC10987264 DOI: 10.1158/1940-6207.capr-23-0153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 12/12/2023] [Accepted: 01/26/2024] [Indexed: 01/31/2024]
Abstract
Cigarette smoke is a rich source of free radicals that can promote oxidative stress and carcinogenesis, including head and neck squamous cell carcinoma (HNSCC) development; importantly, 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) and 8-iso-prostaglandin F2α (8-isoprostane) are biomarkers of oxidative stress. Several mechanisms, including the antioxidant properties of black raspberry (BRB), account for their chemopreventive effects. In the present clinical trial, we tested the hypothesis that BRB administration reduces biomarkers levels of oxidative stress in buccal cells and urine of smokers. One week after enrolling 21 smokers, baseline buccal cells and urine samples were collected before the administration of BRB lozenges for 8 weeks (5/day, 1 gm BRB/lozenge). Buccal cells and urine samples were collected at the middle and the end of BRB administration. The last samples were collected after the BRB cessation (washout period). We analyzed levels of 8-oxodG and 8-isoprostane (LC/MS-MS), urinary cotinine (ELISA), and creatinine (spectrophotometry). BRB significantly reduced the levels of 8-oxodG by 17.08% (P = 0.00079) in buccal cells and 12.44% (P = 0.034) in urine at the middle of BRB administration as compared with baseline; the corresponding values at the end of BRB administration were 16.46% (P = 0.026) in buccal cells and 25.72% (P = 0.202) in urine. BRB had no significant effect on the levels of urinary 8-isoprostane. BRB's capacity to inhibit 8-oxodG formation of smokers' buccal cells and urine is clearly evident and the reduction in 8-oxodG suggests that antioxidant abilities are central to BRB's HNSCC chemopreventive properties. PREVENTION RELEVANCE Cigarette smoke contains highly active components namely free radicals that can promote oxidative stress and oral cancer. We found that black raspberry (BRB) inhibited the formation of oxidative stress markers in the oral cavity and urine of smokers suggesting the antioxidant abilities of BRB in preventing oral cancer.
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Affiliation(s)
- Kun-Ming Chen
- Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Yuan-Wan Sun
- Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Nicolle M Krebs
- Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Lisa Reinhart
- Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Dongxiao Sun
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Jiangang Liao
- Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Rachel Cook
- Undergraduate Student, Pennsylvania State University, University Park, Pennsylvania
| | - Paige Elizabeth Bond
- Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Susan R Mallery
- Division of Oral Maxillofacial Pathology, College of Dentistry, Ohio State University, Columbus, Ohio
| | - Karam El-Bayoumy
- Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
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Goksu K, Vural A, Kahraman AN, Aslan IK. Evaluation of common carotid artery wall stiffness by shear wave elastography in smokers and non-smokers. Tob Induc Dis 2024; 22:TID-22-49. [PMID: 38463751 PMCID: PMC10921918 DOI: 10.18332/tid/185300] [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: 09/30/2023] [Revised: 12/27/2023] [Accepted: 02/23/2024] [Indexed: 03/12/2024] Open
Abstract
INTRODUCTION Smoking is one of the most important preventable causes of cardiovascular diseases. Vascular disease caused by smoking is associated with vascular endothelial damage, platelet aggregation, and adhesion. In our study, we examined the effect of chronic smoking on vessel wall stiffness in smokers and control group by measuring carotid artery wall stiffness by shear wave ultrasonography. METHODS Sixty-two smokers of similar ages and genders, and 67 people who never smoked in the last ten years were included as the control group in this cross-sectional study. Arterial wall stiffness over the common carotid arteries of all participants was measured by shear wave elastography (SWE). In addition, each patient's blood pressure, fasting blood glucose, body mass index (BMI), HDL and LDL cholesterol measurements were recorded. RESULTS Arterial wall stiffness values in smokers were found to be statistically significantly higher than in non-smokers. The mean of SWE measurements of the smokers was 47.3 ± 6.2 kPa, and that of the control group was 42.9 ± 4 kPa. The mean values of HDL and LDL of the smokers were 46.9 ± 5.6 mg/dL and 147.3 ± 9.3 mg/dL, respectively, and those of the control group were 50.3 ± 5.1 mg/dL and 136.9 ± 5.9 mg/dL. The LDL cholesterol values were statistically significantly higher in smokers compared to the control group, and HDL cholesterol values were statistically significantly lower in smokers. CONCLUSIONS In our study, the arterial wall stiffness values measured by the SWE technique were higher in smokers than non-smokers.
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Affiliation(s)
- Kamber Goksu
- Department of Radiology, Fatih Sultan Mehmet Training and Research Hospital, University of Health Sciences, Istanbul, Türkiye
| | - Ahmet Vural
- Department of Radiology, Fatih Sultan Mehmet Training and Research Hospital, University of Health Sciences, Istanbul, Türkiye
| | - Ahmet N. Kahraman
- Department of Radiology, Fatih Sultan Mehmet Training and Research Hospital, University of Health Sciences, Istanbul, Türkiye
| | - Isil K. Aslan
- Department of Neurology, Fatih Sultan Mehmet Training and Research Hospital, University of Health Sciences, Istanbul, Türkiye
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Mahabee-Gittens EM, Matt GE, Mazzella MJ, Doucette JT, Ratnani P, Merianos AL. Inflammatory marker levels in children with tobacco smoke exposure. Cytokine 2024; 173:156448. [PMID: 37980882 PMCID: PMC10843711 DOI: 10.1016/j.cyto.2023.156448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 11/12/2023] [Accepted: 11/14/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Tobacco smoke exposure (TSE) has inflammatory and immunosuppressive effects which may be associated with altered levels of inflammatory markers and pediatric illnesses. OBJECTIVE The primary objective was to examine the associations of cotinine-confirmed and parent-reported child TSE patterns and discharge diagnoses with C-reactive protein (CRP), IL-8, and IL-10 in 0-11-year-old pediatric emergency department (PED) patients who lived with ≥ 1 smoker. METHODS Saliva samples were obtained from 115 children with a mean (SD) age of 3.5 (3.1) years during the PED visit (T0). Saliva was analyzed for cotinine, CRP, IL-8, and IL-10. Parents self-reported their children's TSE patterns; children's medical records were reviewed to identify and categorize discharge diagnoses. Linear regression models were utilized to find T0 associations of cotinine-confirmed and parent-reported child TSE patterns, and PED diagnoses with each inflammatory marker. All models were adjusted for child race/ethnicity, child sex, annual household income, and housing type. The TSE models also adjusted for child discharge diagnosis. RESULTS At T0, the geometric mean (GeoM) of cotinine was 4.1 ng/ml [95 %CI = 3.2-5.2]; the GeoMs of CRP, IL-8, and IL-10 were 3,326 pg/ml [95 %CI = 2,696-4,105], 474 pg/ml [95 %CI = 386-583], and 1.1 pg/ml [95 %CI = 0.9-1.3], respectively. Parent-reported child TSE patterns were positively associated with ln-transformed CRP levels, while adjusting for the covariates (β^ = 0.012 [95 %CI:0.004-0.020], p = 0.037). In the parent-reported child TSE pattern model, there were significant positive associations between the covariate of child age with CRP and IL-8 levels (p = 0.028 and p < 0.001, respectively). Children with a bacterial diagnosis had higher IL-8 levels (p = 0.002) compared to the other diagnosis groups. CONCLUSIONS Results indicate that parent-reported child TSE increases the expression of CRP in ill children and supports prior work demonstrating that IL-8 is higher in children with TSE who have bacterial infections. These findings should be examined in future research with ill children with and without TSE.
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Affiliation(s)
- E Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Matthew J Mazzella
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - John T Doucette
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Parita Ratnani
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Mahabee-Gittens EM, Matt GE, Jandarov RA, Merianos AL. The Associations of Trans-3'-Hydroxy Cotinine, Cotinine, and the Nicotine Metabolite Ratio in Pediatric Patients with Tobacco Smoke Exposure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20095639. [PMID: 37174159 PMCID: PMC10177900 DOI: 10.3390/ijerph20095639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/09/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
(1) Background: Trans-3'-hydroxy cotinine (3HC) and cotinine (COT) are tobacco smoke exposure (TSE) biomarkers and the 3HC/COT ratio is a marker of CYP2A6 activity, an enzyme which metabolizes nicotine. The primary objective was to assess the associations of these TSE biomarkers with sociodemographics and TSE patterns in children who lived with ≥1 smoker. (2) Methods: A convenience sample of 288 children (mean age (SD) = 6.42 (4.8) years) was recruited. Multiple linear regression models were built to assess associations of sociodemographics and TSE patterns with urinary biomarker response variables: (1) 3HC, (2) COT, (3) 3HC+COT sum, and (4) 3HC/COT ratio. (3) Results: All children had detectable 3HC (Geometric Mean [GeoM] = 32.03 ng/mL, 95%CI = 26.97, 38.04) and COT (GeoM = 10.24 ng/mL, 95%CI = 8.82, 11.89). Children with higher cumulative TSE had higher 3HC and COT (β^ = 0.03, 95%CI = 0.01, 0.06, p = 0.015 and β^ = 0.03, 95%CI = 0.01, 0.05, p = 0.013, respectively). Highest 3HC+COT sum levels were in children who were Black (β^ = 0.60, 95%CI = 0.04, 1.17, p = 0.039) and who had higher cumulative TSE (β^ = 0.03, 95%CI = 0.01, 0.06, p = 0.015). Lowest 3HC/COT ratios were in children who were Black (β^ = -0.42, 95%CI = -0.78, -0.07, p = 0.021) and female (β^ = -0.32, 95%CI = -0.62, -0.01, p = 0.044). (4) Conclusion: Results indicate that there are racial and age-related differences in TSE, most likely due to slower nicotine metabolism in non-Hispanic Black children and in younger children.
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Affiliation(s)
- E Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA 92123, USA
| | - Roman A Jandarov
- Division of Biostatistics and Bioinformatics, Department of Environmental and Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Ashley L Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH 45221, USA
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Ballbè M, Fu M, Masana G, Pérez-Ortuño R, Gual A, Gil F, Olmedo P, García-Algar Ó, Pascual JA, Fernández E. Passive exposure to electronic cigarette aerosol in pregnancy: A case study of a family. ENVIRONMENTAL RESEARCH 2023; 216:114490. [PMID: 36220444 DOI: 10.1016/j.envres.2022.114490] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/20/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Passive exposure to the aerosols of electronic cigarettes (e-cigarettes) has been little studied. We assessed this exposure in late pregnancy in a woman and her 3-year-old child, exposed through e-cigarette use by another household member. METHODS This prospective longitudinal case study involved a family unit consisting of an e-cigarette user, a pregnant woman who delivered an infant during the study, and the couple's older 3-year-old son. At 31, 36, and 40 weeks of the pregnancy, we measured biomarkers (nicotine metabolites, tobacco-specific nitrosamines, propanediols, glycerol, and metals) in the urine and hair of all three participants and in the saliva of the adults, in cord blood at delivery, and in the breast milk at the postpartum period. RESULTS Samples from the e-cigarette user showed quantifiable concentrations of all analytes assessed (maximum urinary cotinine concentration, 4.9 ng/mL). Among samples taken from the mother, nicotine and its metabolites were found mainly in urine and also in saliva and hair, but not in cord blood. During the postpartum period, we found cotinine concentrations of 2.2 ng/mL in the mother's urine and 0.22 ng/mL in breast milk; 1,2-propanediol was generally detected in urine and saliva, but not in cord blood or breast milk. The maximum urinary cotinine concentration in the 3-year-old child was 2.6 ng/mL and propanediols also were detected in his urine. Nitrosamines were not detected in samples taken from the mother or the 3-year-old. Metals found in the refill liquid were detected at low levels in both the mother and the 3-year-old. CONCLUSIONS We detected low but not negligible concentrations of e-cigarette-related analytes (including cord blood and breast milk) in an exposed pregnant non-user and in a 3-year-old child also living in the home. Passive exposure to e-cigarette aerosols cannot be disregarded and should be assessed in larger observational studies.
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Affiliation(s)
- Montse Ballbè
- Tobacco Control Unit, Cancer Control and Prevention Program, WHO Collaborating Center for Tobacco Control, Institut Català d'Oncologia (ICO), Av. Gran Via de l'Hospitalet 199-203, 08908, L'Hospitalet de Llobregat (Barcelona), Spain; Tobacco Control Research Group, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Av. Gran Via de l'Hospitalet 199-203, 08908, L'Hospitalet de Llobregat (Barcelona), Spain; CIBER of Respirarory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Addictions Unit, Psychiatry Department, Institute of Neurosciences, Hospital Clínic de Barcelona, C. Villarroel 170, 08036, Barcelona, Spain.
| | - Marcela Fu
- Tobacco Control Unit, Cancer Control and Prevention Program, WHO Collaborating Center for Tobacco Control, Institut Català d'Oncologia (ICO), Av. Gran Via de l'Hospitalet 199-203, 08908, L'Hospitalet de Llobregat (Barcelona), Spain; Tobacco Control Research Group, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Av. Gran Via de l'Hospitalet 199-203, 08908, L'Hospitalet de Llobregat (Barcelona), Spain; CIBER of Respirarory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; School of Medicine and Health Sciences, Universitat de Barcelona, C. Feixa Llarga s/n, 08907, L'Hospitalet de Llobregat (Barcelona), Spain.
| | - Guillem Masana
- Barcelona Clinic Schizophrenia Unit, Department of Psychiatry and Psychology, Institute of Neurosciences, Hospital Clínic de Barcelona, C. Villarroel 170, 08036, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; CIBER of Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain.
| | - Raúl Pérez-Ortuño
- Group of Integrative Pharmacology and Systems Neuroscience, Neurosciences Programme, IMIM (Hospital del Mar Medical Research Institute), Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain.
| | - Antoni Gual
- Grup de Recerca en Addiccions Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
| | - Fernando Gil
- Department of Legal Medicine and Toxicology, School of Medicine, Universidad de Granada, Granada, Spain.
| | - Pablo Olmedo
- Department of Legal Medicine and Toxicology, School of Medicine, Universidad de Granada, Granada, Spain.
| | - Óscar García-Algar
- Neonatology Unit, ICGON, Hospital Clínic-Maternitat, BCNatal, Barcelona, Spain.
| | - Jose Antonio Pascual
- Group of Integrative Pharmacology and Systems Neuroscience, Neurosciences Programme, IMIM (Hospital del Mar Medical Research Institute), Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain; Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona Biomedical Research Park, Barcelona, Spain.
| | - Esteve Fernández
- Tobacco Control Unit, Cancer Control and Prevention Program, WHO Collaborating Center for Tobacco Control, Institut Català d'Oncologia (ICO), Av. Gran Via de l'Hospitalet 199-203, 08908, L'Hospitalet de Llobregat (Barcelona), Spain; Tobacco Control Research Group, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Av. Gran Via de l'Hospitalet 199-203, 08908, L'Hospitalet de Llobregat (Barcelona), Spain; CIBER of Respirarory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; School of Medicine and Health Sciences, Universitat de Barcelona, C. Feixa Llarga s/n, 08907, L'Hospitalet de Llobregat (Barcelona), Spain.
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Merianos AL, Jandarov RA, Mahabee-Gittens EM. Carcinogenic and tobacco smoke-derived particulate matter biomarker uptake and associated healthcare patterns among children. Pediatr Res 2023; 93:143-153. [PMID: 35383260 PMCID: PMC9535039 DOI: 10.1038/s41390-022-02031-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/10/2021] [Accepted: 12/14/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND The objective was to assess the associations of child tobacco smoke exposure (TSE) biomarkers (urinary cotinine, NNAL, and nicotelline N-oxides) and parent-reported smoking and child TSE patterns with total hospital visits, pediatric emergency department (PED) visits, urgent care (UC), revisits, and hospital admissions among 0-9-year-olds. METHODS A convenience sample of PED/UC patients (N = 242) who presented to a large, US children's hospital who had baseline urine samples assayed for the TSE biomarkers of interest were included. Biomarker levels were log-transformed, and linear and Poisson regression models were built. RESULTS The geometric means of child cotinine, creatinine-adjusted NNAL, and N-oxide levels were 11.2 ng/ml, 30.9 pg/mg creatinine, and 24.1 pg/ml, respectively. The mean (SD) number of daily cigarettes smoked by parents was 10.2 (6.1) cigarettes. Each one-unit increase in log-NNAL levels was associated with an increase in total UC visits (aRR = 1.68, 95% CI = 1.18-2.39) among 0-9-year-olds, while controlling for the covariates. Each one-unit increase in child log-NNAL/cotinine ratio (×103) values was associated with an increase in total hospital visits (aRR = 1.39, 95% CI = 1.10-1.75) and UC visits (aRR = 1.56, 95% CI = 1.14-2.13) over 6 months. CONCLUSION Systematic screening for child TSE should be conducted during all hospital visits. The comprehensive assessment of TSE biomarkers should be considered to objectively measure young children's exposure. IMPACT Higher levels of cotinine, a widely used tobacco smoke exposure biomarker, have been associated with higher healthcare utilization patterns among children. Less is known on the associations of carcinogenic and tobacco smoke-derived particulate matter biomarker uptake with child healthcare utilization patterns. This study assessed the associations of several biomarkers with healthcare utilization patterns among pediatric emergency department patients ages 0-9 years who lived with tobacco smokers. Higher urinary NNAL biomarker levels, in individual and ratio form with cotinine, increased children's risk for urgent care visits over 6 months. Higher parent-reported cumulative child tobacco smoke exposure increased children's risk for hospital admissions.
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Affiliation(s)
- Ashley L Merianos
- University of Cincinnati, School of Human Services, Cincinnati, OH, USA.
| | - Roman A Jandarov
- University of Cincinnati, College of Medicine, Department of Environmental and Public Health Sciences, Division of Biostatistics and Bioinformatics, Cincinnati, OH, USA
| | - E Melinda Mahabee-Gittens
- Cincinnati Children's Hospital Medical Center, Division of Emergency Medicine, University of Cincinnati, College of Medicine, Cincinnati, OH, USA
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Mahabee-Gittens EM, Merianos AL, Stone L, Wullenweber CA, Quintana PJE, Hoh E, Dodder NG, Lopez-Galvez N, Matt GE. Hand nicotine as an independent marker of thirdhand smoke pollution in children's environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 849:157914. [PMID: 35952873 PMCID: PMC10199779 DOI: 10.1016/j.scitotenv.2022.157914] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/22/2022] [Accepted: 08/04/2022] [Indexed: 05/23/2023]
Abstract
BACKGROUND Hand nicotine (HN) levels measure children's exposure to tobacco smoke pollutants from thirdhand and secondhand smoke. HN is associated with urinary and salivary cotinine, but the associations of HN with other tobacco smoke exposure (TSE) markers remain unknown. OBJECTIVES We compared levels of HN and four urinary TSE biomarkers: cotinine, trans-3'-hydroxycotinine (3HC), nicotelline N-oxides, and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), and children's sociodemographic and TSE patterns. We also examined if HN is a plausible pathway for children's exposure to active smoking. METHODS Data were collected from 175 non-smoking patients (Mean (SD) age = 5.4 (3.4) years) who lived with ≥1 cigarette smoker(s). HN and TSE biomarker levels were determined using LC-MS/MS. Multivariate and multivariable regression analyses were conducted to examine associations between TSE markers and parent-reported measures, controlling for sociodemographics. RESULTS Of the five markers of TSE, cotinine (R2 = 0.221; p = 0.003) and HN (R2 = 0.247; p = 0.001) showed the strongest overall associations. Of the five markers, only cotinine showed significantly higher levels among Black children (β^=0.307,p<0.05) independent of age, reported exposure, and home smoking bans. Cotinine (β^=0.010,p<0.05), NNAL (β^=0.012,p<0.05), and HN (β^=0.011,p<0.05) showed significant positive associations with reported exposure independent of race, age, and home smoking bans. NNAL (β^=-0.285,p<0.05) and HN (β^=-0.336,p<0.05), but not cotinine, 3HC, and N-oxides, showed significantly lower levels among children who lived in homes with smoking bans. Child age, hand surface area, home smoking ban, and reported exposure independently accounted for 21 % of the variance in HN levels (p = 0.002). HN accounted for 30 % of the variance in cotinine independent of child race and child age. DISCUSSION HN levels were associated with modifiable tobacco-related behaviors and shows promise as a marker of sources of THS pollution in a child's environment not captured by measurement of urinary cotinine alone. HN levels provide additional information about TSE, complementing other biomarkers when assessing children's overall TSE.
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Affiliation(s)
- E Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Ashley L Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH, USA
| | - Lara Stone
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Chase A Wullenweber
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA, USA
| | - Nathan G Dodder
- School of Public Health, San Diego State University, San Diego, CA, USA; San Diego State University Research Foundation, San Diego, CA, USA
| | - Nicolas Lopez-Galvez
- School of Public Health, San Diego State University, San Diego, CA, USA; San Diego State University Research Foundation, San Diego, CA, USA
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA, USA
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Lee HS. Diagnostic Performance Evaluation of the Novel Index Combining Urinary Cotinine and 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanol in Smoking Status Verification and Usefulness for Trend Monitoring of Tobacco Smoking Exposure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12147. [PMID: 36231448 PMCID: PMC9564592 DOI: 10.3390/ijerph191912147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/14/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
During the last decade in Korea, urinary cotinine concentrations in non-current smokers have decreased, making it difficult to distinguish secondhand smoke (SHS) exposure from nonsmokers because of overlapping values between non-current smokers with and without SHS exposure. Additionally, the importance of smoking status verification to avoid misclassification is increasing with the increased use of e-cigarettes. We developed a novel index combining urinary cotinine and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL) and evaluated its diagnostic performance for the classification of smoking status using the KNHANES VII dataset. A total of 10,116 and 5575 Korean participants aged >19 years with measured urinary cotinine concentrations were enrolled in a training set and validation set, respectively. When using 4.0 as the cutoff value for distinguishing current smokers from non-current smokers, urinary cotinine∙NNAL showed a better diagnostic performance than urinary cotinine or urinary NNAL. Among e-cigarette users, urinary cotinine∙NNAL showed more accurate classification rates than urinary NNAL. Furthermore, urinary cotinine∙NNAL had measurable values in non-current smokers, whereas urinary cotinine had unmeasurable values in one-fourth of all participants. This study shows that urinary cotinine∙NNAL might be a useful biomarker for smoking status verification and trend monitoring of tobacco smoking exposure with increased use of e-cigarettes.
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Affiliation(s)
- Hyun-Seung Lee
- Department of Laboratory Medicine, School of Medicine, Wonkwang University, 895 Muwang-ro, Iksan-si 54538, Jeollabuk-do, Korea
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Parks J, McLean KE, McCandless L, de Souza RJ, Brook JR, Scott J, Turvey SE, Mandhane PJ, Becker AB, Azad MB, Moraes TJ, Lefebvre DL, Sears MR, Subbarao P, Takaro TK. Assessing secondhand and thirdhand tobacco smoke exposure in Canadian infants using questionnaires, biomarkers, and machine learning. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2022; 32:112-123. [PMID: 34175887 PMCID: PMC8770125 DOI: 10.1038/s41370-021-00350-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 06/02/2023]
Abstract
BACKGROUND As smoking prevalence has decreased in Canada, particularly during pregnancy and around children, and technological improvements have lowered detection limits, the use of traditional tobacco smoke biomarkers in infant populations requires re-evaluation. OBJECTIVE We evaluated concentrations of urinary nicotine biomarkers, cotinine and trans-3'-hydroxycotinine (3HC), and questionnaire responses. We used machine learning and prediction modeling to understand sources of tobacco smoke exposure for infants from the CHILD Cohort Study. METHODS Multivariable linear regression models, chosen through a combination of conceptual and data-driven strategies including random forest regression, assessed the ability of questionnaires to predict variation in urinary cotinine and 3HC concentrations of 2017 3-month-old infants. RESULTS Although only 2% of mothers reported smoking prior to and throughout their pregnancy, cotinine and 3HC were detected in 76 and 89% of the infants' urine (n = 2017). Questionnaire-based models explained 31 and 41% of the variance in cotinine and 3HC levels, respectively. Observed concentrations suggest 0.25 and 0.50 ng/mL as cut-points in cotinine and 3HC to characterize SHS exposure. This cut-point suggests that 23.5% of infants had moderate or regular smoke exposure. SIGNIFICANCE Though most people make efforts to reduce exposure to their infants, parents do not appear to consider the pervasiveness and persistence of secondhand and thirdhand smoke. More than half of the variation in urinary cotinine and 3HC in infants could not be predicted with modeling. The pervasiveness of thirdhand smoke, the potential for dermal and oral routes of nicotine exposure, along with changes in public perceptions of smoking exposure and risk warrant further exploration.
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Affiliation(s)
- Jaclyn Parks
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | | | | | - Russell J de Souza
- Department of Health Research Methods, Evidence, and Impact, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Jeffrey R Brook
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - James Scott
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Stuart E Turvey
- Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Piush J Mandhane
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Allan B Becker
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB, Canada
| | - Meghan B Azad
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB, Canada
- Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Theo J Moraes
- Hospital for Sick Children, Toronto, ON, Canada
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Diana L Lefebvre
- Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Malcolm R Sears
- Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Padmaja Subbarao
- Hospital for Sick Children, Toronto, ON, Canada
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Tim K Takaro
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada.
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Mahabee-Gittens EM, Matt GE, Ding L, Merianos AL. Comparison of Levels of Three Tobacco Smoke Exposure Biomarkers in Children of Smokers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182211803. [PMID: 34831559 PMCID: PMC8622785 DOI: 10.3390/ijerph182211803] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 12/13/2022]
Abstract
Objectives: Cotinine, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), and N-oxides are biomarkers of tobacco smoke exposure (TSE) used to assess short- and longer-term TSE. The objective of this study was to assess the associations between these TSE biomarkers, sociodemographics, parental smoking, and child TSE patterns among 0–17-year-olds. Methods: A convenience sample of 179 pediatric patients (mean (SD) age = 7.9 (4.3) years) who lived with ≥1 smoker and who had parental assessments completed and urine samples analyzed for the three TSE biomarkers of interest were included. Biomarker levels were log-transformed, univariate regression models were built and Pearson correlations were assessed. Results: In total, 100% of children had detectable levels of cotinine and >96% had detectable NNAL and N-oxide levels. The geometric means of cotinine, NNAL, and N-oxide levels were 10.1 ng/mL, 25.3 pg/mL, and 22.9 pg/mL, respectively. The mean (SD) number of daily cigarettes smoked by parents was 10.6 (6.0) cigarettes. Child age negatively correlated with urinary cotinine (r = −0.202, p = 0.007) and log NNAL levels (r = −0.275, p < 0.001). The highest log-cotinine levels were in children who were younger, of African American race, and whose parents had a lower education, an annual income ≤USD15,000, and no smoking bans. The highest log-NNAL and N-oxide levels were in children whose parents had a lower education, had no smoking bans, and were around higher numbers of cigarettes. Conclusion: Children of smokers who were younger, African American, and had no smoking bans had the highest TSE biomarker levels. Targeted interventions are needed to reduce TSE levels among high-risk children.
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Affiliation(s)
- E. Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Correspondence: ; Tel.: +1-513-636-7966; Fax: +1-513-636-7967
| | - Georg E. Matt
- Department of Psychology, San Diego State University, San Diego, CA 92123, USA;
| | - Lili Ding
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA;
| | - Ashley L. Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH 45221, USA;
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11
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Mahabee-Gittens EM, Merianos AL, Jandarov RA, Quintana PJE, Hoh E, Matt GE. Differential associations of hand nicotine and urinary cotinine with children's exposure to tobacco smoke and clinical outcomes. ENVIRONMENTAL RESEARCH 2021; 202:111722. [PMID: 34297932 PMCID: PMC8578289 DOI: 10.1016/j.envres.2021.111722] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 05/10/2023]
Abstract
BACKGROUND Children's overall tobacco smoke exposure (TSE) consists of both inhalation of secondhand smoke (SHS) and ingestion, dermal uptake, and inhalation of thirdhand smoke (THS) residue from dust and surfaces in their environments. OBJECTIVES Our objective was to compare the different roles of urinary cotinine as a biomarker of recent overall TSE and hand nicotine as a marker of children's contact with nicotine pollution in their environments. We explored the differential associations of these markers with sociodemographics, parental smoking, child TSE, and clinical diagnoses. METHODS Data were collected from 276 pediatric emergency department patients (Median age = 4.0 years) who lived with a cigarette smoker. Children's hand nicotine and urinary cotinine levels were determined using LC-MS/MS. Parents reported tobacco use and child TSE. Medical records were reviewed to assess discharge diagnoses. RESULTS All children had detectable hand nicotine (GeoM = 89.7ng/wipe; 95 % CI = [78.9; 102.0]) and detectable urinary cotinine (GeoM = 10.4 ng/ml; 95%CI = [8.5; 12.6]). Although hand nicotine and urinary cotinine were highly correlated (r = 0.62, p < 0.001), urinary cotinine geometric means differed between racial groups and were higher for children with lower family income (p < 0.05), unlike hand nicotine. Independent of urinary cotinine, age, race, and ethnicity, children with higher hand nicotine levels were at increased risk to have discharge diagnoses of viral/other infectious illness (aOR = 7.49; 95%CI = [2.06; 27.24], p = 0.002), pulmonary illness (aOR = 6.56; 95%CI = [1.76; 24.43], p = 0.005), and bacterial infection (aOR = 5.45; 95%CI = [1.50; 19.85], p = 0.03). In contrast, urinary cotinine levels showed no associations with diagnosis independent of child hand nicotine levels and demographics. DISCUSSION The distinct associations of hand nicotine and urinary cotinine suggest the two markers reflect different exposure profiles that contribute differentially to pediatric illness. Because THS in a child's environment directly contributes to hand nicotine, additional studies of children of smokers and nonsmokers are warranted to determine the role of hand nicotine as a marker of THS exposure and its potential role in the development of tobacco-related pediatric illnesses.
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Affiliation(s)
- E Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, College of Medicine, University of Cincinnati, Cincinnati, OH, USA.
| | - Ashley L Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH, USA
| | - Roman A Jandarov
- Department of Environmental Health, Division of Biostatistics and Bioinformatics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA, USA
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA, USA
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Abstract
Almost 50% of prescription drugs lack age-appropriate dosing guidelines and therefore are used "off-label." Only ~10% drugs prescribed to neonates and infants have been studied for safety or efficacy. Immaturity of drug metabolism in children is often associated with drug toxicity. This chapter summarizes data on the ontogeny of major human metabolizing enzymes involved in oxidation, reduction, hydrolysis, and conjugation of drugs. The ontogeny data of individual drug-metabolizing enzymes are important for accurate prediction of drug pharmacokinetics and toxicity in children. This information is critical for designing clinical studies to appropriately test pharmacological hypotheses and develop safer pediatric drugs, and to replace the long-standing practice of body weight- or surface area-normalized drug dosing. The application of ontogeny data in physiologically based pharmacokinetic model and regulatory submission are discussed.
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13
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Mahabee-Gittens EM, Mazzella MJ, Doucette JT, Merianos AL, Stone L, Wullenweber CA, A. Busgang S, Matt GE. Comparison of Liquid Chromatography Mass Spectrometry and Enzyme-Linked Immunosorbent Assay Methods to Measure Salivary Cotinine Levels in Ill Children. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E1157. [PMID: 32059566 PMCID: PMC7068296 DOI: 10.3390/ijerph17041157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/04/2020] [Accepted: 02/07/2020] [Indexed: 12/26/2022]
Abstract
Objective: Cotinine is the preferred biomarker to validate levels of tobacco smoke exposure (TSE) in children. Compared to enzyme-linked immunosorbent assay methods (ELISA) for quantifying cotinine in saliva, the use of liquid chromatography tandem mass spectrometry (LC-MS/MS) has higher sensitivity and specificity to measure very low levels of TSE. We sought to compare LC-MS/MS and ELISA measures of cotinine in saliva samples from children overall and the associations of these measures with demographics and TSE patterns. Method: Participants were nonsmoking children (N = 218; age mean (SD) = 6.1 (5.1) years) presenting to a pediatric emergency department. Saliva samples were analyzed for cotinine using both LC-MS/MS and ELISA. Limit of quantitation (LOQ) for LC-MS/MS and ELISA was 0.1 ng/ml and 0.15 ng/ml, respectively. Results: Intraclass correlations (ICC) across methods = 0.884 and was consistent in sex and age subgroups. The geometric mean (GeoM) of LC-MS/MS = 4.1 (range: < LOQ - 382 ng/mL; 3% < LOQ) which was lower (p < 0.0001) than the ELISA GeoM = 5.7 (range: < LOQ - 364 ng/mL; 5% < LOQ). Similar associations of cotinine concentrations with age ( < -0.10, p < 0.0001), demographic characteristics (e.g., income), and number of cigarettes smoked by caregiver ( > 0.07, p < 0.0001) were found regardless of cotinine detection method; however, cotinine associations with sex and race/ethnicity were only found to be significant in models using LC-MS/MS-derived cotinine. Conclusions: Utilizing LC-MS/MS-based cotinine, associations of cotinine with sex and race/ethnicity of child were revealed that were not detectable using ELISA-based cotinine, demonstrating the benefits of utilizing the more sensitive LC-MS/MS assay for cotinine measurement when detecting low levels of TSE in children.
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Affiliation(s)
- E. Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA; (L.S.); (C.A.W.)
| | - Matthew J. Mazzella
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.J.M.); (J.T.D.); (S.A.B.)
| | - John T. Doucette
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.J.M.); (J.T.D.); (S.A.B.)
| | - Ashley L. Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH 45221, USA;
| | - Lara Stone
- Division of Emergency Medicine, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA; (L.S.); (C.A.W.)
| | - Chase A. Wullenweber
- Division of Emergency Medicine, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA; (L.S.); (C.A.W.)
| | - Stefanie A. Busgang
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.J.M.); (J.T.D.); (S.A.B.)
| | - Georg E. Matt
- Department of Psychology, San Diego State University, San Diego, CA 92123, USA;
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14
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Yang X, Naylor J, Matazel K, Goodwin A, Jacob CC, Bryant M, Loukotková L, Gamboa da Costa G, Chemerynski S, Deng-Bryant Y, Reissig C, Jackson K, Fisher J. Use of a physiologically-based pharmacokinetic model to explore the potential disparity in nicotine disposition between adult and adolescent nonhuman primates. Toxicol Appl Pharmacol 2020; 386:114826. [PMID: 31730783 DOI: 10.1016/j.taap.2019.114826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/23/2019] [Accepted: 11/11/2019] [Indexed: 10/25/2022]
Abstract
The widespread use and high abuse liability of tobacco products has received considerable public health attention, in particular for youth, who are vulnerable to nicotine addiction. In this study, adult and adolescent squirrel monkeys were used to evaluate age-related metabolism and pharmacokinetics of nicotine after intravenous administration. A physiologically-based pharmacokinetic (PBPK) model was created to characterize the pharmacokinetic behaviors of nicotine and its metabolites, cotinine, trans-3'-hydroxycotinine (3'-OH cotinine), and trans-3'-hydroxycotinine glucuronide (3'-OH cotinine glucuronide) for both adult and adolescent squirrel monkeys. The PBPK nicotine model was first calibrated for adult squirrel monkeys utilizing in vitro nicotine metabolic data, plasma concentration-time profiles and cumulative urinary excretion data for nicotine and metabolites. Further model refinement was conducted when the calibrated adult model was scaled to the adolescents, because adolescents appeared to clear nicotine and cotinine more rapidly relative to adults. More specifically, the resultant model parameters representing systemic clearance of nicotine and cotinine for adolescent monkeys were approximately two- to three-fold of the adult values on a per body weight basis. The nonhuman primate PBPK model in general captured experimental observations that were used for both model calibration and evaluation, with acceptable performance metrics for precision and bias. The model also identified differences in nicotine pharmacokinetics between adolescent and adult nonhuman primates which might also be present in humans.
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Affiliation(s)
- Xiaoxia Yang
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA.
| | - Jennifer Naylor
- Division of Neurotoxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Katelin Matazel
- Division of Neurotoxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Amy Goodwin
- Division of Neurotoxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Cristina C Jacob
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Matthew Bryant
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Lucie Loukotková
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Gonçalo Gamboa da Costa
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Susan Chemerynski
- Division of Nonclinical Science, Center for Tobacco Products, U.S. Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Ying Deng-Bryant
- Division of Nonclinical Science, Center for Tobacco Products, U.S. Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Chad Reissig
- Division of Individual Health Science, Center for Tobacco Products, U.S. Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Kia Jackson
- Division of Individual Health Science, Center for Tobacco Products, U.S. Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Jeffrey Fisher
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
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15
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Kobayashi S, Sata F, Hanaoka T, Braimoh TS, Ito K, Tamura N, Araki A, Itoh S, Miyashita C, Kishi R. Association between maternal passive smoking and increased risk of delivering small-for-gestational-age infants at full-term using plasma cotinine levels from The Hokkaido Study: a prospective birth cohort. BMJ Open 2019; 9:e023200. [PMID: 30782875 PMCID: PMC6368030 DOI: 10.1136/bmjopen-2018-023200] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES To investigate the association between plasma cotinine level measured at the 8th gestational month and the delivery of small-for-gestational-age (SGA) infants, using a highly sensitive ELISA method. DESIGN Prospective birth cohort study from The Hokkaido Study on Environment and Children's Health. SETTING Hokkaido, Japan. PARTICIPANTS Our sample included 15 198 mother-infant pairs enrolled in 2003-2012. MAIN OUTCOME MEASURES SGA, defined as a gestational age-specific weight Z-score below -2. RESULTS The number of SGA infants was 192 (1.3%). The cotinine cut-off level that differentiated SGA infants from other infants was 3.03 ng/mL for both the total population and the full-term births subgroup (sensitivity 0.307; positive predictive value 2.3%). Compared with infants of mothers with a plasma cotinine level of <3.03 ng/mL, infants of mothers with a plasma cotinine level of ≥3.03 ng/mL showed an increased OR for SGA in the total population and the full-term infant group (2.02(95% CI 1.45 to 2.83) and 2.44(95% CI 1.73 to 3.44), respectively). CONCLUSION A plasma cotinine level of ≥3.03 ng/mL, which included both passive and active smokers, was associated with an increased risk of SGA. This finding is of important relevance when educating pregnant women about avoiding prenatal passive and active smoking due to the adverse effects on their infants, even those born at full-term.
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Affiliation(s)
- Sumitaka Kobayashi
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
| | - Fumihiro Sata
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
- Health Center, Chuo University, Tokyo, Japan
| | - Tomoyuki Hanaoka
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
| | | | - Kumiko Ito
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
- Department of Public Health, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Naomi Tamura
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Atsuko Araki
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
| | - Sachiko Itoh
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
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16
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Stancil SL, Pearce RE, Tyndale RF, Kearns GL, Vyhlidal CA, Leeder JS, Abdel-Rahman S. Evaluating metronidazole as a novel, safe CYP2A6 phenotyping probe in healthy adults. Br J Clin Pharmacol 2019; 85:960-969. [PMID: 30706508 DOI: 10.1111/bcp.13884] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 01/18/2023] Open
Abstract
AIMS CYP2A6 is a genetically polymorphic enzyme resulting in differential substrate metabolism and health behaviours. Current phenotyping probes for CYP2A6 exhibit limitations related to procurement (deuterated cotinine), toxicity (coumarin), specificity (caffeine) and age-appropriate administration (nicotine, NIC). In vitro, CYP2A6 selectively forms 2-hydroxymetronidazole (2HM) from metronidazole (MTZ). The purpose of this study was to evaluate MTZ as a CYP2A6 phenotyping probe drug in healthy adults against the well-established method of measuring trans-3-hydroxycotinine (3HC)/cotinine (COT). METHODS A randomized, cross-over, pharmacokinetic study was completed in 16 healthy, nonsmoking adults. Separated by a washout period of at least 2 weeks, MTZ 500 mg and NIC gum 2 mg were administered and plasma was sampled over 48 hours and 8 hours, respectively. Correlations of plasma metabolite/parent ratios (2HM/MTZ; 3HC/COT) were assessed by Pearson coefficient. CYP2A6 genotyping was conducted and incorporated as a variable of plasma ratio response. RESULTS Correlations between the plasma ratio 2HM/MTZ and 3HC/COT were ≥ 0.9 at multiple time points (P < 0.001), demonstrating a wide window during which 2HM/MTZ can be queried post-MTZ dose. CYP2A6 genotype had significant impacts on both MTZ and NIC phenotyping ratios with decreased activity predicted phenotypes demonstrating 2HM/MTZ ratios ≤58% and 3HC/COT ratios ≤56% compared with extensive activity predicted phenotypes at all time points examined in the study (P < 0.05). No adverse events were reported in the MTZ arm while 38% (n = 6) of participants reported mild adverse events in the NIC arm. CONCLUSIONS Metronidazole via 2HM/MTZ performed well as a novel, safe phenotyping probe for CYP2A6 in healthy adults.
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Affiliation(s)
- Stephani L Stancil
- Division of Adolescent Medicine, Children's Mercy Kansas City, MO, USA.,Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, MO, USA.,Division of Pharmacology & Toxicology, University of Missouri-Kansas City School of Pharmacy, Kansas City, MO, USA
| | - Robin E Pearce
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, MO, USA.,Department of Pediatrics, University of Missouri-Kansas City School of Medicine, MO, USA
| | - Rachel F Tyndale
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Departments of Pharmacology & Toxicology, and Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Gregory L Kearns
- Arkansas Children's Research Institute and the Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Carrie A Vyhlidal
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, MO, USA.,Department of Pediatrics, University of Missouri-Kansas City School of Medicine, MO, USA
| | - J Steven Leeder
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, MO, USA.,Department of Pediatrics, University of Missouri-Kansas City School of Medicine, MO, USA
| | - Susan Abdel-Rahman
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, MO, USA.,Department of Pediatrics, University of Missouri-Kansas City School of Medicine, MO, USA
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17
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Zhang X, Johnson N, Carrillo G, Xu X. Decreasing trend in passive tobacco smoke exposure and association with asthma in U.S. children. ENVIRONMENTAL RESEARCH 2018; 166:35-41. [PMID: 29859939 DOI: 10.1016/j.envres.2018.05.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/15/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
In this study, we assessed trends of serum cotinine levels over time among US children ages 3-11 years and compared the risk of asthma in groups exposed to passive tobacco smoke. We utilized National Health and Nutrition Examination Survey (NHANES) data collected from 2003 to 2014 (n = 8064). Serum cotinine level, household smoker status, asthma status, and sociodemographic information were extracted for multiple regression analyses. The adjusted biannual change in log (cotinine) in comparison to earlier NHANES survey cycles was - 0.196 (p < 0.001) overall, - 0.055 (p = 0.089) among children with household smoker(s), and - 0.129 (p < 0.001) among children without. The proportion of children living with household smokers decreased from 24.9% in the 2003-2004 cycle to 11.4% in the 2013-2014 cycle. The adjusted odds ratios (ORs) for asthma were 1.34 (95% confidence interval (CI): 1.00-1.80; 2nd tertile vs 1st tertile) and 1.69 (95%CI: 1.25-2.29; 3rd tertile vs1st tertile), respectively. Highly exposed asthmatic children, in the 3rd cotinine tertile (>0.13 ng/mL), were primarily Non-Hispanic Black (61.0%) and whose family incomes were below poverty guidelines. Overall results reveal passive smoke exposure level among children ages 3-11 in the US decreased over the study period. Nevertheless, higher exposure to passive smoke is still associated with higher odds of childhood asthma. Targeted smoking cessation interventions in clinical practices are needed to reduce tobacco smoke exposure and related asthma risk in children, particularly in low-income and minority groups.
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Affiliation(s)
- Xiao Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Texas A&M University, United States
| | - Natalie Johnson
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, United States
| | - Genny Carrillo
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, United States
| | - Xiaohui Xu
- Department of Epidemiology and Biostatistics, School of Public Health, Texas A&M University, United States.
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18
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Rice JL, Brigham E, Dineen R, Muqueeth S, O'Keefe G, Regenold S, Koehler K, Rule A, McCormack M, Hansel NN, Diette GB. The feasibility of an air purifier and secondhand smoke education intervention in homes of inner city pregnant women and infants living with a smoker. ENVIRONMENTAL RESEARCH 2018; 160:524-530. [PMID: 29089103 PMCID: PMC5929467 DOI: 10.1016/j.envres.2017.10.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 09/19/2017] [Accepted: 10/12/2017] [Indexed: 05/30/2023]
Abstract
OBJECTIVES Secondhand smoke (SHS) and other air pollutants adversely affect the health of pregnant women and infants. A feasibility study aimed at reducing air pollution in homes of pregnant women or infants living with a smoker was completed. METHODS In collaboration with the Baltimore City Health Department, women ≥ 18 years of age and either pregnant nonsmokers, or post-partum (any smoking status) with an infant age 0-12 months were recruited. Homes had at least one smoker. Intervention included two air purifiers and secondhand smoke education. Outcomes included feasibility, change in fine particulate matter (PM2.5), air nicotine, and salivary cotinine pre- and post-intervention. RESULTS Fifty women were enrolled (mean age 27 years, 92% African American, 71% single, 94% Medicaid eligible, 34% reported smoking) and 86% completed the study. Of the 50 women, 32 had infants and 18 were pregnant at time of enrollment. Post- intervention, 70% of participants reported smokers were less likely to smoke indoors, and 77% had at least one air purifier turned on at the final visit. Participant satisfaction was high (91%) and 98% would recommend air purifiers. Indoor PM2.5 was significantly decreased (P < 0.001). Salivary cotinine was significantly decreased for non-smoking women (P < 0.01) but not infants, and no significant change in air nicotine occurred (P = 0.6). CONCLUSIONS Air purifiers with SHS education is a feasible intervention in homes of women and infants. These data demonstrate reduction in indoor PM2.5 and salivary cotinine in non-smoking adults. Air purifiers are not an alternative for smoking cessation and a home/ car smoking ban. Smoking cessation should be strongly encouraged for all pregnant women, and nonsmoking mothers with infants should be counseled to completely avoid SHS exposure. This study provides support for a future intervention evaluating clinical endpoints.
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Affiliation(s)
- Jessica L Rice
- Johns Hopkins University School of Medicine, Division of Pediatric Pulmonology, Baltimore, MD, USA
| | - Emily Brigham
- Johns Hopkins University School of Medicine, Division of Pulmonary and Critical Care Medicine, Baltimore, MD, USA
| | - Rebecca Dineen
- Baltimore City Department of Health, Bureau of Maternal and Child Health, Baltimore, MD, USA
| | - Sadiya Muqueeth
- Baltimore City Department of Health, Bureau of Maternal and Child Health, Baltimore, MD, USA; Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Gena O'Keefe
- Baltimore City Department of Health, Bureau of Maternal and Child Health, Baltimore, MD, USA; The Annie E. Casey Foundation, Baltimore, MD, USA
| | - Stephanie Regenold
- Baltimore City Department of Health, Bureau of Maternal and Child Health, Baltimore, MD, USA; Loyola University, Student Health and Education Services, Baltimore, MD, USA
| | - Kirsten Koehler
- Johns Hopkins Bloomberg School of Public Health, Environmental Health and Engineering, Baltimore, MD, USA
| | - Ana Rule
- Johns Hopkins Bloomberg School of Public Health, Environmental Health and Engineering, Baltimore, MD, USA
| | - Meredith McCormack
- Johns Hopkins University School of Medicine, Division of Pulmonary and Critical Care Medicine, Baltimore, MD, USA
| | - Nadia N Hansel
- Johns Hopkins University School of Medicine, Division of Pulmonary and Critical Care Medicine, Baltimore, MD, USA; Johns Hopkins Bloomberg School of Public Health, Environmental Health and Engineering, Baltimore, MD, USA
| | - Gregory B Diette
- Johns Hopkins University School of Medicine, Division of Pulmonary and Critical Care Medicine, Baltimore, MD, USA; Johns Hopkins Bloomberg School of Public Health, Environmental Health and Engineering, Baltimore, MD, USA.
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Braimoh TS, Kobayashi S, Sata F, Sasaki S, Goudarzi H, Yila TA, Araki A, Miyashita C, Minakami H, Baba T, Sengoku K, Kishi R. Association of prenatal passive smoking and metabolic gene polymorphisms with child growth from birth to 3years of age in the Hokkaido Birth Cohort Study on Environment and Children's Health. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 605-606:995-1002. [PMID: 28693112 DOI: 10.1016/j.scitotenv.2017.06.212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 06/23/2017] [Accepted: 06/25/2017] [Indexed: 06/07/2023]
Abstract
Although the effects of prenatal passive smoking on birth weight have been reported, the effects of metabolic gene polymorphisms on passive smoking have not been studied. Therefore, we investigated the effects of maternal passive smoking and metabolic gene polymorphisms on child growth up to 3years of age using cotinine as a biomarker. We included 1356 Japanese participants in a prospective cohort between 2003 and 2007 (cotinine levels at the third trimester≤0.21ng/mL and 0.22 to 11.48ng/mL for non-passive and passive smokers, respectively), and measured child outcomes such as weight, length, head circumference, and Kaup index. Additionally, we analyzed cytochrome P450 1A1 (CYP1A1), epoxide hydrolase 1 (EPHX1), and two N-acetyltransferase 2 (NAT2) genotypes using real-time polymerase chain reaction methods. Associations were investigated using multiple regression models. Kaup index gain from birth up to 3years of age was significantly smaller in children born to passive smokers than in those born to non-passive smokers (-0.34kg/m2; 95% confidence interval: -0.67, -0.01). Maternal CYP1A1 genotype was not associated with prenatal passive smoking and Kaup index gain, but was significantly associated with prenatal passive smoking and head circumference gain from birth up to 3years of age (-0.75cm; 95% confidence interval: -1.39, -0.12). Thus, this study suggests that prenatal passive smoking may have potent effects on postnatal growth from birth up to 3years of age. Moreover, children with maternal CYP1A1 genotype may be more susceptible to the effects of prenatal passive smoking.
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Affiliation(s)
- Titilola Serifat Braimoh
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan; Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Sumitaka Kobayashi
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan; Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Fumihiro Sata
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan; Health Center, Chuo University, 42-8, Ichigaya-Hommura-cho, Shinjuku-ku, Tokyo 162-8473, Japan
| | - Seiko Sasaki
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan
| | - Houman Goudarzi
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan; Department of Respiratory Medicine, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan
| | - Thamar Ayo Yila
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Atsuko Araki
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Hisanori Minakami
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan
| | - Tsuyoshi Baba
- Department of Obstetrics and Gynecology, School of Medicine, Sapporo Medical University, South-1, West-17, Chuo-ku, Sapporo 060-8556, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, School of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa 078-8510, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan.
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Benowitz NL, Jain S, Dempsey DA, Nardone N, Helen GS, Jacob P. Urine Cotinine Screening Detects Nearly Ubiquitous Tobacco Smoke Exposure in Urban Adolescents. Nicotine Tob Res 2017; 19:1048-1054. [PMID: 28031377 PMCID: PMC5896471 DOI: 10.1093/ntr/ntw390] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 12/20/2016] [Indexed: 11/12/2022]
Abstract
INTRODUCTION Routine biochemical assessment of tobacco smoke exposure could lead to more effective interventions to reduce or prevent secondhand smoke (SHS)-related disease in adolescents. Our aim was to determine using urine cotinine (major nicotine metabolite) measurement the prevalence of tobacco smoke exposure among adolescents receiving outpatient care at an urban public hospital. METHODS Surplus urine was collected in 466 adolescents attending pediatric or urgent care clinics at Zuckerberg San Francisco General Hospital, serving families with lower levels of income and education, in 2013-2014. The majority were Hispanic or African American. Urine cotinine cut points of 0.05 to 0.25 ng/ml, 0.25 to 30 ng/ml, and 30 ng/ml were used to classify subjects as light SHS or thirdhand smoke exposed, SHS or light/intermittent active users, and active tobacco users, respectively. RESULTS Among subjects 87% were exposed, including 12% active smoking, 46% SHS and 30% lightly exposed. The SHS exposed group adjusted geometric mean cotinine values were significantly higher in African Americans (1.48 ng/ml) compared to other groups (0.56-1.13 ng/ml). CONCLUSIONS In a city with a low smoking prevalence (12%), a large majority (87%) of adolescents seen in a public hospital clinic are exposed to tobacco. This is much higher than reported in national epidemiological studies of adolescents, which used a plasma biomarker. Since SHS is associated with significant respiratory diseases and parents and adolescents underreport exposure to SHS, routine biochemical screening should be considered as a tool to reduce SHS exposure. The clinical significance of light exposure needs to be investigated. IMPLICATIONS Urine biomarker screening found that a large majority (87%) of adolescents treated in an urban public hospital are exposed to tobacco. Since SHS is associated with significant respiratory diseases and parents and adolescents underreport exposure to SHS, routine biochemical screening should be considered as a tool to reduce SHS exposure.
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Affiliation(s)
- Neal L Benowitz
- Division of Clinical Pharmacology and Experimental Therapeutics, Medical Service, Departments of Medicine, and Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA
- Center for Tobacco Control Research and Education, Department of Medicine, University of California, San Francisco, CA
| | - Shonul Jain
- Department of Pediatrics, University of California, San Francisco, CA
| | - Delia A Dempsey
- Department of Pediatrics, University of California, San Francisco, CA
- Division of Clinical Pharmacology, Department of Medicine, University of California, San Francisco, CA
| | - Natalie Nardone
- Division of Clinical Pharmacology, Department of Medicine, University of California, San Francisco, CA
| | - Gideon St. Helen
- Center for Tobacco Control Research and Education, Department of Medicine, University of California, San Francisco, CA
- Division of Clinical Pharmacology, Department of Medicine, University of California, San Francisco, CA
| | - Peyton Jacob
- Center for Tobacco Control Research and Education, Department of Medicine, University of California, San Francisco, CA
- Department of Psychiatry, University of California, San Francisco, CA
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Wang LA, Gonzalez D, Leeder JS, Tyndale RF, Pearce RE, Benjamin DK, Kearns GL, Cohen-Wolkowiez M. Metronidazole Metabolism in Neonates and the Interplay Between Ontogeny and Genetic Variation. J Clin Pharmacol 2017; 57:230-234. [PMID: 27417511 PMCID: PMC5233579 DOI: 10.1002/jcph.797] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 06/06/2016] [Accepted: 07/11/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Laura A. Wang
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | - Daniel Gonzalez
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - J. Steven Leeder
- Department of Pediatrics, University of Missouri-Kansas City School of Medicine, Kansas City, MO, USA
- Department of Pharmacology, University of Missouri-Kansas City School of Pharmacy, Kansas City, MO, USA
- Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children’s Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Rachel F. Tyndale
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Departments of Pharmacology & Toxicology, and Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Robin E. Pearce
- Department of Pediatrics, University of Missouri-Kansas City School of Medicine, Kansas City, MO, USA
- Department of Pharmacology, University of Missouri-Kansas City School of Pharmacy, Kansas City, MO, USA
- Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children’s Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Daniel K. Benjamin
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Gregory L. Kearns
- Arkansas Children’s Hospital Research Institute and the Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Michael Cohen-Wolkowiez
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
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Napierala M, Mazela J, Merritt TA, Florek E. Tobacco smoking and breastfeeding: Effect on the lactation process, breast milk composition and infant development. A critical review. ENVIRONMENTAL RESEARCH 2016; 151:321-338. [PMID: 27522570 DOI: 10.1016/j.envres.2016.08.002] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/03/2016] [Accepted: 08/02/2016] [Indexed: 06/06/2023]
Abstract
Approximately 10% of women report smoking during pregnancy. The number of breastfeeding women who relapse back to smoking is even greater. Smoking may cause adverse changes to the milk's composition by not only reducing its protective properties, but also by affecting the infant's health. The pathophysiological mechanisms underlying these adverse effects are not entirely known. This article is a review of previous reports about the effects of smoking on the lactation process, breast milk composition and infant development. A systematic search for English language articles published until 2015 was made, using a MEDLINE data. The key search terms were "smoking and breastfeeding", "smoking and lactation", "smoking and milk composition", "nicotine and breast milk". Studies have shown that nicotine levels in breast milk of women who smoke are three times higher than those in the plasma levels. Breast milk volume is reduced and the duration of lactation period is shorter. Smoking causes adverse changes to the milk's composition by not only reducing its protective properties, but also affecting infants' response to breastfeeding and to breast milk.
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Affiliation(s)
- Marta Napierala
- Laboratory of Environmental Research, Department of Toxicology, Poznan University of Medical Sciences, 30 Dojazd Street, 60-631 Poznan, Poland
| | - Jan Mazela
- Department of Neonatal Infection, Poznan University of Medical Sciences, 33 Polna Street, 60-535 Poznan, Poland
| | - T Allen Merritt
- Children's Hospital, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Ewa Florek
- Laboratory of Environmental Research, Department of Toxicology, Poznan University of Medical Sciences, 30 Dojazd Street, 60-631 Poznan, Poland.
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Abstract
Before prescribing, the pediatrician typically considers recommended dosing guidelines and issues related to safety. Rarely does (s)he consider the impact of normal growth and development on drug disposition and by extension drug action. This paper reviews how the processes of absorption, distribution, metabolism and elimination differ between healthy children and adults and briefly discusses considerations for medication prescribing in children where these processes are altered secondary to comorbidities.
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24
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Kobayashi S, Sata F, Sasaki S, Braimoh TS, Araki A, Miyashita C, Goudarzi H, Kobayashi S, Kishi R. Combined effects of AHR, CYP1A1, and XRCC1 genotypes and prenatal maternal smoking on infant birth size: Biomarker assessment in the Hokkaido Study. Reprod Toxicol 2016; 65:295-306. [PMID: 27592400 DOI: 10.1016/j.reprotox.2016.08.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 08/16/2016] [Accepted: 08/30/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVES We investigated the individual and combined effects of maternal polymorphisms encoding the aromatic hydrocarbon receptor (AHR; rs2066853), cytochrome P450 (CYP) 1A1 (rs1048963), and the X-ray-complementing gene 1 (XRCC1; rs1799782) and prenatal smoking in relation to infant birth size. METHODS Totally, 3263 participants (1998 non-smokers and 1265 smokers) were included in the study between 2003 and 2007. Two groups of mothers were distinguished by plasma cotinine levels by ELISA measured during the third trimester (cut-off=11.48ng/mL). We conducted data analysis using multiple linear regression models. RESULTS Infants whose mothers smoked and had AHR-GG, CYP1A1-AG/GG, and XRCC1-CT/TT genotypes weighed, -145g less than those born of mothers who did not smoke and had the AHR-GA/AA, CYP1A1-AA, and XRCC1-CC genotypes (95% CI: -241, -50). CONCLUSIONS We demonstrated that infants whose mothers smoked during pregnancy with the combination of AHR, CYP1A1, and XRCC1 polymorphisms had lower birth size.
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Affiliation(s)
- Sumitaka Kobayashi
- Hokkaido University Center for Environmental and Health Sciences, North-12, West-7, Kita-ku, Sapporo, Hokkaido 060-0812, Japan; Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan
| | - Fumihiro Sata
- Hokkaido University Center for Environmental and Health Sciences, North-12, West-7, Kita-ku, Sapporo, Hokkaido 060-0812, Japan; Health Center, Chuo University, 42-8, Ichigaya-Hommura-cho, Shinjuku-ku, Tokyo 162-8473, Japan
| | - Seiko Sasaki
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan
| | - Titilola Serifat Braimoh
- Hokkaido University Center for Environmental and Health Sciences, North-12, West-7, Kita-ku, Sapporo, Hokkaido 060-0812, Japan; Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan
| | - Atsuko Araki
- Hokkaido University Center for Environmental and Health Sciences, North-12, West-7, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Chihiro Miyashita
- Hokkaido University Center for Environmental and Health Sciences, North-12, West-7, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Houman Goudarzi
- Hokkaido University Center for Environmental and Health Sciences, North-12, West-7, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Sachiko Kobayashi
- Hokkaido University Center for Environmental and Health Sciences, North-12, West-7, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Reiko Kishi
- Hokkaido University Center for Environmental and Health Sciences, North-12, West-7, Kita-ku, Sapporo, Hokkaido 060-0812, Japan.
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Marfo JT, Fujioka K, Ikenaka Y, Nakayama SMM, Mizukawa H, Aoyama Y, Ishizuka M, Taira K. Relationship between Urinary N-Desmethyl-Acetamiprid and Typical Symptoms including Neurological Findings: A Prevalence Case-Control Study. PLoS One 2015; 10:e0142172. [PMID: 26535579 PMCID: PMC4633099 DOI: 10.1371/journal.pone.0142172] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 10/19/2015] [Indexed: 11/22/2022] Open
Abstract
Neonicotinoid insecticides are nicotinic acetylcholine receptor agonists used worldwide. Their environmental health effects including neurotoxicity are of concern. We previously determined a metabolite of acetamiprid, N-desmethyl-acetamiprid in the urine of a patient, who exhibited some typical symptoms including neurological findings. We sought to investigate the association between urinary N-desmethyl-acetamiprid and the symptoms by a prevalence case-control study. Spot urine samples were collected from 35 symptomatic patients of unknown origin and 50 non-symptomatic volunteers (non-symptomatic group, NSG, 4–87 year-old). Patients with recent memory loss, finger tremor, and more than five of six symptoms (headache, general fatigue, palpitation/chest pain, abdominal pain, muscle pain/weakness/spasm, and cough) were in the typical symptomatic group (TSG, n = 19, 5–69 year-old); the rest were in the atypical symptomatic group (ASG, n = 16, 5–78 year-old). N-desmethyl-acetamiprid and six neonicotinoids in the urine were quantified by liquid chromatography-tandem mass spectrometry. The detection of N-desmethyl-acetamiprid was the most frequent and highest in TSG (47.4%, 6.0 ppb (frequency, maximum)), followed by in ASG (12.5%, 4.4 ppb) and in NSG (6.0%, 2.2 ppb), however acetamiprid was not detected. Thiamethoxam was detected in TSG (31.6%, 1.4 ppb), in ASG (6.3%, 1.9 ppb), but not in NSG. Nitenpyram was detected in TSG (10.5%, 1.2 ppb), in ASG (6.3%, not quantified) and in NSG (2.0%, not quantified). Clothianidin was only detected in ASG (6.3%, not quantified), and in NSG (2.0%, 1.6 ppb). Thiacloprid was detected in ASG (6.3%, 0.1 ppb). The cases in TSG with detection of N-desmethyl-acetamiprid and thiamethoxam were aged 5 to 62 years and 13 to 62 years, respectively. Detection of N-desmethyl-acetamiprid was associated with increased prevalence of the symptoms (odds ratio: 14, 95% confidence interval: 3.5–57). Urinary N-desmethyl-acetamiprid can be used as a biomarker for environmental exposure to acetamiprid. Further multi-centered clinical research in larger patients groups with more metabolites analysis is needed.
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Affiliation(s)
- Jemima Tiwaa Marfo
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Kazutoshi Fujioka
- Hawaii Institute of Molecular Education, Honolulu, Hawaii, United States
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
- Water Research Group, School of Environmental Sciences and Development, North-West University, Potchefstroom, South Africa
| | - Shouta M. M. Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Hazuki Mizukawa
- Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | | | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Kumiko Taira
- Department of Anesthesiology, Tokyo Women’s Medical University Medical Center East, Tokyo, Japan
- * E-mail:
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Upreti VV, Wahlstrom JL. Meta-analysis of hepatic cytochrome P450 ontogeny to underwrite the prediction of pediatric pharmacokinetics using physiologically based pharmacokinetic modeling. J Clin Pharmacol 2015; 56:266-83. [DOI: 10.1002/jcph.585] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 06/29/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Vijay V. Upreti
- Clinical Pharmacology, Modeling and Simulation; Amgen, Inc.; South San Francisco CA USA
| | - Jan L. Wahlstrom
- Pharmacokinetics and Drug Metabolism; Amgen, Inc.; Thousand Oaks CA USA
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27
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Kearns GL, Chumpitazi BP, Abdel-Rahman SM, Garg U, Shulman RJ. Systemic exposure to menthol following administration of peppermint oil to paediatric patients. BMJ Open 2015; 5:e008375. [PMID: 26270949 PMCID: PMC4538270 DOI: 10.1136/bmjopen-2015-008375] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE Peppermint oil (PMO) has been used to treat abdominal ailments dating to ancient Egypt, Greece and Rome. Despite its increasing paediatric use, as in irritable bowel syndrome (IBS) treatment, the pharmacokinetics (PK) of menthol in children given PMO has not been explored. DESIGN AND SETTING Single-site, exploratory pilot study of menthol PK following a single 187 mg dose of PMO. Subjects with paediatric Rome II defined (IBS; n=6, male and female, 7-15 years of age) were enrolled. Blood samples were obtained before PMO administration and at 10 discrete time points over a 12 h postdose period. Menthol was quantitated from plasma using a validated gas chromatography mass spectrometry technique. Menthol PK parameters were determined using a standard non-compartmental approach. RESULTS Following a dose of PMO, a substantial lag time (range 1-4 h) was seen in all subjects for the appearance of menthol which in turn, produced a delayed time of peak (Tmax=5.3 ± 2.4 h) plasma concentration (Cmax=698.2 ± 245.4 ng/mL). Tmax and Tlag were significantly more variable than the two exposure parameters; Cmax, mean residence time and total area under the curve (AUC=4039.7 ± 583.8 ng/mL × h) which had a coefficient of variation of <20%. CONCLUSIONS Delayed appearance of menthol in plasma after oral PMO administration in children is likely a formulation-specific event which, in IBS, could increase intestinal residence time of the active ingredient. Our data also demonstrate the feasibility of using menthol PK in children with IBS to support definitive studies of PMO dose-effect relationships.
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Affiliation(s)
- Gregory L Kearns
- Departments of Pediatrics, University of Missouri—Kansas City, Kansas City, Missouri, USA
- Departments of Pharmacology, University of Missouri—Kansas City, Kansas City, Missouri, USA
- Divisions of Pediatric Pharmacology, Medical Toxicology &Therapeutic Innovation, Children's Mercy Hospitals and Clinics, Kansas City, Missouri, USA
| | - Bruno Pedro Chumpitazi
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Division of Pediatric Gastroenterology, Texas Children's Hospital, Houston, Texas, USA
| | - Susan M Abdel-Rahman
- Departments of Pediatrics, University of Missouri—Kansas City, Kansas City, Missouri, USA
- Divisions of Pediatric Pharmacology, Medical Toxicology &Therapeutic Innovation, Children's Mercy Hospitals and Clinics, Kansas City, Missouri, USA
| | - Uttam Garg
- Departments of Pathology, University of Missouri—Kansas City, Kansas City, Missouri, USA
- Clinical Laboratory Medicine, Children's Mercy Hospitals and Clinics, Kansas City, Missouri, USA
| | - Robert J Shulman
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Division of Pediatric Gastroenterology, Texas Children's Hospital, Houston, Texas, USA
- Children's Nutrition Research Center, Houston, Texas, USA
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Barreto GE, Iarkov A, Moran VE. Beneficial effects of nicotine, cotinine and its metabolites as potential agents for Parkinson's disease. Front Aging Neurosci 2015; 6:340. [PMID: 25620929 PMCID: PMC4288130 DOI: 10.3389/fnagi.2014.00340] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/04/2014] [Indexed: 01/10/2023] Open
Abstract
Parkinson’s disease (PD) is a progressive neurodegenerative disorder, which is characterized by neuroinflammation, dopaminergic neuronal cell death and motor dysfunction, and for which there are no proven effective treatments. The negative correlation between tobacco consumption and PD suggests that tobacco-derived compounds can be beneficial against PD. Nicotine, the more studied alkaloid derived from tobacco, is considered to be responsible for the beneficial behavioral and neurological effects of tobacco use in PD. However, several metabolites of nicotine, such as cotinine, also increase in the brain after nicotine administration. The effect of nicotine and some of its derivatives on dopaminergic neurons viability, neuroinflammation, and motor and memory functions, have been investigated using cellular and rodent models of PD. Current evidence shows that nicotine, and some of its derivatives diminish oxidative stress and neuroinflammation in the brain and improve synaptic plasticity and neuronal survival of dopaminergic neurons. In vivo these effects resulted in improvements in mood, motor skills and memory in subjects suffering from PD pathology. In this review, we discuss the potential benefits of nicotine and its derivatives for treating PD.
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Affiliation(s)
- George E Barreto
- Department of Nutrition and Biochemistry, Pontificia Universidad Javeriana Bogotá, D. C., Colombia
| | - Alexander Iarkov
- Center of Research in Biomedical Sciences, Universidad Autónoma de Chile Santiago, Chile ; Research & Development Service, Bay Pines VA Healthcare System Bay Pines, FL, USA
| | - Valentina Echeverria Moran
- Center of Research in Biomedical Sciences, Universidad Autónoma de Chile Santiago, Chile ; Research & Development Service, Bay Pines VA Healthcare System Bay Pines, FL, USA ; Research Service, James A Haley Veterans' Hospital Tampa, FL, USA ; Department of Molecular Medicine, Morsani College of Medicine, University of South Tampa, FL, USA
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