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Khanagar SB, AlBalawi F, Alshehri A, Awawdeh M, Iyer K, Kumar Bijai L, Aldhebaib A, Gokulchandra Singh O. Unveiling the Impact of Electronic Cigarettes (EC) on Health: An Evidence-Based Review of EC as an Alternative to Combustible Cigarettes. Cureus 2024; 16:e56451. [PMID: 38638766 PMCID: PMC11024731 DOI: 10.7759/cureus.56451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2024] [Indexed: 04/20/2024] Open
Abstract
Cigarette smoking has been considered a major public health concern due to its serious impact on health. However, smokers intending to quit may find long-term abstinence challenging. When smoking an electronic cigarette (EC), users can experience a sensation and taste similar to that of smoking a combustible cigarette. Therefore, manufacturers promote these products as a viable substitute for combustible cigarettes. However, several researchers report the serious health impacts experienced by EC users. Therefore, this review aims to examine the health impacts of EC use. Based on the findings of the research papers reported in the literature, the role of EC as a smoking cessation tool is unclear. Several researchers have also reported a significant association between EC usage among non-smokers at baseline and the future initiation of combustible cigarette smoking. EC use significantly impacts user health. The nicotine that is present in EC e-liquids can elevate blood pressure, resulting in blood vessel constriction and an increase in heart rate, ultimately leading the body to an ischemic condition, resulting in myocardial infarction (MI), stroke, and increased arterial stiffness. Researchers report a higher likelihood of prediabetes among EC users; its usage was associated with higher OR of having asthma attacks and higher OR of reporting depression and has an impact on birth outcomes among pregnant women. Men using EC are more likely to report erectile dysfunction than non-users. EC also has a significant impact on oral health, which includes periodontal diseases, mucosal lesions, irritation in the mouth and throat, reduced salivary flow, and an increased risk of developing cancer. The physical injury resulting from exploding EC is another health concern. The frequently burned areas included the hands, face, genitalia, and thighs. Marketers promote EC as an alternative to combustible cigarettes and a tool for quitting smoking. However, the Food and Drug Administration has not approved them for smoking cessation. EC can have a serious impact on the health of their users; hence, the findings of this paper have several implications, including the need for regulation of the sales and marketing of these products and educating the users on the impact of these products on their health and safety.
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Affiliation(s)
- Sanjeev B Khanagar
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, SAU
- Preventive Dental Science Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Farraj AlBalawi
- Preventive Dental Science Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, SAU
| | - Aram Alshehri
- Restorative and Prosthetic Dental Sciences Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, SAU
| | - Mohammed Awawdeh
- Preventive Dental Science Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, SAU
| | - Kiran Iyer
- Preventive Dental Science Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, SAU
| | - Laliytha Kumar Bijai
- Maxillofacial Surgery and Diagnostic Sciences Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, SAU
| | - Ali Aldhebaib
- Radiological Sciences Program, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, SAU
| | - Oinam Gokulchandra Singh
- Radiological Sciences Program, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, SAU
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Vila-Farinas A, Pérez-Rios M, Montes-Martinez A, Ruano-Ravina A, Forray A, Rey-Brandariz J, Candal-Pedreira C, Fernández E, Casal-Acción B, Varela-Lema L. Effectiveness of smoking cessation interventions among pregnant women: An updated systematic review and meta-analysis. Addict Behav 2024; 148:107854. [PMID: 37683574 DOI: 10.1016/j.addbeh.2023.107854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/08/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023]
Abstract
OBJECTIVE To carry out a systematic review of systematic reviews with an update of the existing evidence relating to a broad range of smoking cessation interventions, including psycho-social, digital and pharmacologic interventions, for pregnant women. DATA-SOURCES Search was conducted in March 2022 in PubMed, EMBASE, and Cochrane in two stages: 1) a search of systematic reviews and meta-analyses, published from January 2012 through January 2022; 2) an update of those that fulfilled eligibility criteria reproducing the primary search strategy. STUDY ELIGIBILITY CRITERIA We selected randomized clinical trials (RCTs) that evaluated the effectiveness of pharmacological, digital, and psychosocial interventions in aged 18 years and over who were daily smokers, and compared these with routine care, less intense interventions or placebo. STUDY APPRAISAL AND SYNTHESIS METHODS Data from eligible studies were manually extracted by two authors and reviewed by a third. The quality of the reviews was evaluated using the AMSTAR scale, and risk of bias was measured with the Rob-2 tool and GRADE level of evidence. RESULTS The meta-analysis included 63 RCTs (n = 19849 women). The interventions found to be effective were: financial incentives (RR:1.77; 95%CI:1.21-2.58), counseling (RR:1.27; 95%CI:1.13-1.43) and long-term nicotine replacement therapy (NRT) (RR:1.53; 95%CI:1.16-2.01). Short-term NRT, bupropion, digital interventions, feedback, social support, and exercise showed no effectiveness. The GRADE level of evidence was moderate-to-high for all interventions, with the exception of long-term NRT. CONCLUSIONS Non-pharmacological interventions for smoking cessation are the most effective for pregnant women. The moderator analysis suggests that pregnant women of low socioeconomic status might benefit less from smoking cessation interventions than women of a high socioeconomic status. These women are usually heavier smokers that live in pro-smoking environments and could require more intensive and targeted interventions.
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Affiliation(s)
- A Vila-Farinas
- Department of Preventive Medicine and Public Health, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - M Pérez-Rios
- Department of Preventive Medicine and Public Health, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain; Consortium for Biomedical Research in Respiratory Diseases (CIBER de Enfermedades Respiratorias/CibeRes), Madrid, Spain.
| | - A Montes-Martinez
- Department of Preventive Medicine and Public Health, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain; Consortium for Biomedical Research in Respiratory Diseases (CIBER de Enfermedades Respiratorias/CibeRes), Madrid, Spain
| | - A Ruano-Ravina
- Department of Preventive Medicine and Public Health, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain; Consortium for Biomedical Research in Respiratory Diseases (CIBER de Enfermedades Respiratorias/CibeRes), Madrid, Spain
| | - Ariadna Forray
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - J Rey-Brandariz
- Department of Preventive Medicine and Public Health, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - C Candal-Pedreira
- Department of Preventive Medicine and Public Health, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - E Fernández
- Tobacco Control Unit, WHO Collaborating Center for Tobacco Control, Institut Català d'Oncologia (ICO), Barcelona, Spain; Tobacco Control Research Group, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Barcelona, Spain; School of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain; CIBER of Respiratory Diseases (CIBERES), Madrid, Spain
| | - B Casal-Acción
- Galician Agency for Health Knowledge Management (avalia-t; ACIS), Santiago de Compsotela, Spain
| | - L Varela-Lema
- Department of Preventive Medicine and Public Health, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain; Consortium for Biomedical Research in Respiratory Diseases (CIBER de Enfermedades Respiratorias/CibeRes), Madrid, Spain
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Ortega LA, Aragon-Carvajal DM, Cortes-Corso KT, Forero-Castillo F. Early developmental risks for tobacco addiction: A probabilistic epigenesis framework. Neurosci Biobehav Rev 2024; 156:105499. [PMID: 38056543 DOI: 10.1016/j.neubiorev.2023.105499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/23/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
Considerable progress has been made in elucidating the relationships between early life psychobiological and environmental risk factors and the development of tobacco addiction. However, a comprehensive understanding of the heterogeneity in tobacco addiction phenotypes requires integrating research findings. The probabilistic epigenesis meta-theory offers a valuable framework for this integration, considering systemic, multilevel, developmental, and evolutionary perspectives. In this paper, we critically review relevant research on early developmental risks associated with tobacco addiction and highlight the integrative heuristic value of the probabilistic epigenesis framework for this research. For this, we propose a four-level systems approach as an initial step towards integration, analyzing complex interactions among different levels of influence. Additionally, we explore a coaction approach to examine key interactions between early risk factors. Moreover, we introduce developmental pathways to understand interindividual differences in tobacco addiction risk during development. This integrative approach holds promise for advancing our understanding of tobacco addiction etiology and informing potentially effective intervention strategies.
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Affiliation(s)
- Leonardo A Ortega
- Facultad de Psicologia, Fundacion Universitaria Konrad Lorenz, Colombia.
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Madrid JV, Vera-Colón MKM, zur Nieden NI. Perturbations in Osteogenic Cell Fate Following Exposure to Constituents Present in Tobacco: A Combinatorial Study. Toxics 2023; 11:998. [PMID: 38133399 PMCID: PMC10747453 DOI: 10.3390/toxics11120998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 12/23/2023]
Abstract
Tobacco smoke contains between 7000 and 10,000 constituents, and only an evanescently low number of which have been identified, let alone been evaluated for their toxicity. Recently, the Food and Drug Administration has published a list of 93 chemical tobacco constituents that are harmful or potentially harmful to a number of cellular processes. However, their effect on developing skeletal cells is unknown. In this study, we used ToxPI, a computational tool, to prioritize constituents on this list for screening in osteogenically differentiating human embryonic stem cells and fibroblasts. In selected endpoint assays, we evaluated the potential of these chemicals to inhibit osteogenic differentiation success as well as their cytotoxicity. Six of these chemicals, which were ascribed an embryotoxic potential in our screen, as well as nicotine, which was not found to be osteotoxic in vitro, were then evaluated in combinatorial exposures, either in pairs of two or three. No one single chemical could be pinpointed as the culprit of reduced calcification in response to tobacco exposure. Combining chemicals at their half-maximal inhibitory concentration of differentiation often elicited expected decreases in calcification over the individual exposures; however, cytotoxicity was improved in many of the dual combinations. A reverse response was also noted, in which calcification output improved in combinatorial exposures. Results from ternary combinations reflected those from double combinations. Thus, the results from this study suggest that it may be difficult to isolate single chemicals as the primary drivers of skeletal embryotoxicity and that the full combination of chemicals in tobacco smoke may produce the hypomineralization phenotype that we have so far observed in vitro in human embryonic stem cells as well as in vivo in zebrafish.
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Rodriguez Rivera PJ, Liang H, Isaiah A, Cloak CC, Menken MS, Ryan MC, Ernst T, Chang L. Prenatal tobacco exposure on brain morphometry partially mediated poor cognitive performance in preadolescent children. NeuroImmune Pharm Ther 2023; 2:375-386. [PMID: 38058999 PMCID: PMC10696570 DOI: 10.1515/nipt-2023-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 06/30/2023] [Indexed: 12/08/2023]
Abstract
Objectives To evaluate whether prenatal tobacco exposure (PTE) is related to poorer cognitive performance, abnormal brain morphometry, and whether poor cognitive performance is mediated by PTE-related structural brain differences. Methods The Adolescent Brain Cognitive Development study dataset was used to compare structural MRI data and neurocognitive (NIH Toolbox®) scores in 9-to-10-year-old children with (n=620) and without PTE (n=10,989). We also evaluated whether PTE effects on brain morphometry mediated PTE effects on neurocognitive scores. Group effects were evaluated using Linear Mixed Models, covaried for socio-demographics and prenatal exposures to alcohol and/or marijuana, and corrected for multiple comparisons using the false-discovery rate (FDR). Results Compared to unexposed children, those with PTE had poorer performance (all p-values <0.05) on executive function, working memory, episodic memory, reading decoding, crystallized intelligence, fluid intelligence and overall cognition. Exposed children also had thinner parahippocampal gyri, smaller surface areas in the posterior-cingulate and pericalcarine cortices; the lingual and inferior parietal gyri, and smaller thalamic volumes (all p-values <0.001). Furthermore, among children with PTE, girls had smaller surface areas in the superior-frontal (interaction-FDR-p=0.01), precuneus (interaction-FDR-p=0.03) and postcentral gyri (interaction-FDR-p=0.02), while boys had smaller putamen volumes (interaction-FDR-p=0.02). Smaller surface areas across regions of the frontal and parietal lobes, and lower thalamic volumes, partially mediated the associations between PTE and poorer neurocognitive scores (p-values <0.001). Conclusions Our findings suggest PTE may lead to poorer cognitive performance and abnormal brain morphometry, with sex-specific effects in some brain regions, in pre-adolescent children. The poor cognition in children with PTE may result from the smaller areas and subcortical brain volumes.
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Affiliation(s)
- Pedro J. Rodriguez Rivera
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Huajun Liang
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Amal Isaiah
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Christine C. Cloak
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Miriam S. Menken
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Meghann C. Ryan
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Thomas Ernst
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Linda Chang
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, USA
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Chang LY, Chiang TL. Associations of timing, level, and pattern of secondhand smoke exposure with early alcohol initiation: A cohort study. Drug Alcohol Depend 2023; 252:110988. [PMID: 37844480 DOI: 10.1016/j.drugalcdep.2023.110988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/07/2023] [Accepted: 09/21/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Few studies explored the longitudinal link between early-life secondhand smoke (SHS) exposure and later alcohol initiation despite its risk for child behavioral difficulties. We examined the associations of the timing, level, and pattern of SHS exposure from pregnancy to childhood with early alcohol initiation and evaluated the sex differences in these associations. METHODS Data were from 16,440 participants of the Taiwan Birth Cohort Study conducted when the children were aged 6 months, 18 months, 3 years, 5.5 years, 8 years, and 12 years. Group-based trajectory modeling was applied to identified patterns of SHS exposure. A series of multiple logistic regression were conducted to examine study hypotheses. RESULTS Exposure to prenatal SHS was associated with an increased risk of early alcohol initiation (adjusted odds ratio [aOR] = 1.17, 95% confidence interval [CI] = 1.06, 1.30). Compared with the adolescents with a persistent-low-exposure trajectory, those who exhibited prenatal-high-decreasing (aOR = 1.18, 95% CI = 1.04, 1.35) or persistent-high-exposure (aOR = 1.27, 95% CI = 1.12, 1.45) patterns exhibited increased risks of early alcohol initiation. Those with higher cumulative levels of SHS exposure also exhibited an increased risk of early alcohol initiation (aOR = 1.03, 95% CI = 1.01, 1.04). Sex differences were also observed. CONCLUSIONS Varying timing, levels, and longitudinal patterns of SHS exposure during early life had differential effects on early alcohol initiation, with the effects differing by sex. Targeting SHS exposure while considering the nature of exposure and sex differences could help prevent and curb alcohol use in adolescents.
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Affiliation(s)
- Ling-Yin Chang
- Institute of Health Behaviors and Community Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan.
| | - Tung-Liang Chiang
- Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan
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Deng L, Wang Q, Lou Y. Maternal nicotine intoxication before pregnancy induces depressive- and anxiety-like behaviors as well as cognitive deficits in male offspring and correlates with neurobiological changes. Brain Behav 2023:e3052. [PMID: 37161637 DOI: 10.1002/brb3.3052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 03/20/2023] [Accepted: 04/08/2023] [Indexed: 05/11/2023] Open
Abstract
INTRODUCTION Maternal nicotine use has been suggested to affect the behavior of children and is linked to changes in neurological systems; however, the specific mechanism is yet to be understood. METHODS Mice were used to establish a maternal nicotine intoxication model. At postnatal day 60 (adolescent stage), male offspring were tested for behavioral tasks including sucrose preference, open field, elevated plus maze, light/dark box, object recognition, Morris water maze (MWM), and forced swimming. Enzyme-linked immunoassays were used to measure plasma concentrations of neurotransmitters including norepinephrine, dopamine, serotonin, and corticosterone. Serotonin transporter (Sert), brain-derived neurotrophic factor (Bdnf), cAMP response element binding protein (Creb), and phosphorylated (p)Creb mRNA levels were measured using quantitative real-time polymerase chain reaction. RESULTS Male offspring of nicotine-intoxicated dams had significantly reduced sucrose preference, mobility time in the forced swimming test, and locomotor and exploratory activities. Offspring in the maternal nicotine intoxication group showed increased signs of depressive- and anxiety-like behavior. Recognition memory in the MWM was compromised in these animals. The hippocampal and prefrontal cortical regions showed significant changes in Bdnf, pCreb, and Sert gene expression, whereas CREB mRNA levels were unaffected. Moreover, compared to the controls, neurogenesis and neuronal viability were also reduced in these animals. CONCLUSION Prenatal nicotine exposure might affect the hypothalamic-pituitary-adrenal axis and reduce neurogenesis, potentially leading to depressive-like behaviors and cognitive deficiencies in male offspring.
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Affiliation(s)
- Linglong Deng
- Department of Nursing, Nanjing Vocational Health College, Nanjing, China
| | - Qing Wang
- Department of Pharmacy, Nanjing Mochou Vocational School, Nanjing, China
| | - Ying Lou
- Department of Nursing, Nanjing Vocational Health College, Nanjing, China
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Souza GS, Freitas IMM, Souza JC, Miraglia SM, Paccola CC. Transgenerational effects of maternal exposure to nicotine on structures of pituitary-gonadal axis of rats. Toxicol Appl Pharmacol 2023; 468:116525. [PMID: 37076090 DOI: 10.1016/j.taap.2023.116525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 04/10/2023] [Accepted: 04/14/2023] [Indexed: 04/21/2023]
Abstract
Smoking can lead to several diseases and cause a reduction in fertility in men and women. Among the various components of cigarettes harmful during pregnancy, nicotine stands out. It can cause a reduction in placental blood flow, compromising the development of the baby with neurological, reproductive and endocrine consequences. Thus, we aimed to evaluate the effects of nicotine on the pituitary-gonadal axis of rats exposed during pregnancy and breastfeeding (1st generation - F1), and whether the possible damage observed would reach the 2nd generation (F2). Pregnant Wistar rats received 2 mg/kg/day of nicotine throughout the entire gestation and lactation. Part of the offspring was evaluated on the first neonatal day (F1) for macroscopic, histopathological and immunohistochemical analyses of brain and gonads. Another part of the offspring was kept until 90 days-old for mating and obtainment of progenies that had the same parameters evaluated at the end of pregnancy (F2). The occurrence of malformations was more frequent and diversified in nicotine-exposed F2. Brain alterations, including reduced size and changes in cell proliferation and death, were seen in both generations of nicotine-exposed rats. Male and female gonads of F1 exposed rats were also affected. The F2 rats showed reduced cellular proliferation and increased cell death on the pituitary and ovaries, besides increased anogenital distance in females. The number of mast cells was not enough altered to indicate an inflammatory process in brain and gonads. We conclude that prenatal exposure to nicotine causes transgenerational alterations in the structures of pituitary-gonadal axis in rats.
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Affiliation(s)
- G S Souza
- Developmental Biology Laboratory, Department of Morphology and Genetic, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - I M M Freitas
- Developmental Biology Laboratory, Department of Morphology and Genetic, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - J C Souza
- Developmental Biology Laboratory, Department of Morphology and Genetic, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - S M Miraglia
- Developmental Biology Laboratory, Department of Morphology and Genetic, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - C C Paccola
- Developmental Biology Laboratory, Department of Morphology and Genetic, Federal University of Sao Paulo, Sao Paulo, Brazil.
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Pereira F, Pereira A, Monteiro SM, Venâncio C, Félix L. Mitigation of nicotine-induced developmental effects by 24-epibrassinolide in zebrafish. Comp Biochem Physiol C Toxicol Pharmacol 2023; 266:109552. [PMID: 36682642 DOI: 10.1016/j.cbpc.2023.109552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/09/2023] [Accepted: 01/15/2023] [Indexed: 01/22/2023]
Abstract
Nicotine is a highly addictive substance that can cause teratogenic impacts in the embryo through redox-dependent pathways. As antioxidants, naturally occurring chemicals can protect cells from redox imbalance. The purpose of this study was to evaluate the effectiveness of 24-epibrassinolide (24-EPI), a natural brassinosteroid with well-known antioxidant properties, in protecting zebrafish embryos against nicotine's teratogenic effects. For 96 h, embryos (2 h post-fertilization - hpf) were exposed to 100 μM nicotine, co-exposed with 24-EPI (0.01, 0.1, and 1 μM), and 24-EPI alone (1 μM). Lethal and sublethal developmental characteristics were evaluated during exposure. Biochemical tests were performed at the conclusion of the exposure, and distinct behavioural paradigms were analysed 24 h later. Nicotine exposure resulted in a higher proportion of larvae with deformities, which were decreased following co-exposure to 24-EPI. Nicotine exposure also caused an increase in oxidative stress as observed by the increased activity of superoxide dismutase and catalase accompanied by an increase in the malondialdehyde levels. Besides, metabolic changes were noticed as observed by the increased lactate dehydrogenase activity that were hypothesised to be associated to nicotine-induced hypoxia which may be responsible for the increased oxidative damage. In addition, locomotor deficits were observed as well as a decrease in the acetylcholinesterase activity denoting nicotine-induced cognitive dysfunction. However, co-exposure to 24-EPI alleviated behavioural deficits and improved nicotine-induced emotional states. Overall, and although further studies are required to clarify these effects, 24-EPI showed promising ameliorative properties against the teratogenic effects induced by nicotine.
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Affiliation(s)
- Francisco Pereira
- Life Sciences and Environment School (ECVA), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Adriana Pereira
- Life Sciences and Environment School (ECVA), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Sandra M Monteiro
- Life Sciences and Environment School (ECVA), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), UTAD, Vila Real, Portugal; Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), UTAD, Vila Real, Portugal
| | - Carlos Venâncio
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), UTAD, Vila Real, Portugal; Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), UTAD, Vila Real, Portugal; Department of Animal Science, School of Agrarian and Veterinary Sciences (ECAV), UTAD, Vila Real, Portugal
| | - Luís Félix
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), UTAD, Vila Real, Portugal; Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), UTAD, Vila Real, Portugal.
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Vilcassim MJR, Stowe S, Majumder R, Subramaniam A, Sinkey RG. Electronic Cigarette Use during Pregnancy: Is It Harmful? Toxics 2023; 11:278. [PMID: 36977043 PMCID: PMC10058591 DOI: 10.3390/toxics11030278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Although combustible cigarette smoking rates have declined in recent years, alternative tobacco product use, particularly electronic cigarette use ("vaping"), has increased among young adults. Recent studies indicate that vaping during pregnancy is on the rise, possibly due to the perception that it is a safer alternative to combustible cigarette smoking. However, e-cigarette aerosols may contain several newer, potentially toxic compounds, including some known developmental toxicants that may adversely impact both the mother and the fetus. However, there is paucity of studies that have examined the effects of vaping during pregnancy. While the adverse perinatal outcomes of cigarette smoking during pregnancy are well established, the specific risks associated with inhaling vaping aerosols during pregnancy requires more research. In this article, we discuss the existing evidence and knowledge gaps on the risks of vaping during pregnancy. Studies that investigate vaping-associated systemic exposure and its effects (i.e., biomarker analyses) and maternal and neonatal clinical health outcomes are needed to reach more robust conclusions. We particularly emphasize the need to go beyond comparative studies with cigarettes, and advocate for research that objectively evaluates the safety of e-cigarettes and other alternative tobacco products.
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Affiliation(s)
- M. J. Ruzmyn Vilcassim
- Department of Environmental Health Sciences, School of Public Health, The University of Alabama at Birmingham, Birmingham, AL 35233, USA;
| | - Samuel Stowe
- Department of Environmental Health Sciences, School of Public Health, The University of Alabama at Birmingham, Birmingham, AL 35233, USA;
| | - Rachel Majumder
- School of Health Professions, The University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Akila Subramaniam
- Center for Women’s Reproductive Health, Division of Maternal Fetal Medicine, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35233, USA; (A.S.); (R.G.S.)
| | - Rachel G. Sinkey
- Center for Women’s Reproductive Health, Division of Maternal Fetal Medicine, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35233, USA; (A.S.); (R.G.S.)
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11
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Kishinchand R, Boyce M, Vyas H, Sewell L, Mohi A, Brengartner L, Miller R, Gorr MW, Wold LE, Cray J. In Utero Exposure to Maternal Electronic Nicotine Delivery System use Demonstrate Alterations to Craniofacial Development. Cleft Palate Craniofac J 2023:10556656231163400. [PMID: 36916055 DOI: 10.1177/10556656231163400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
OBJECTIVE Develop a model for the study of Electronic Nicotine Device (ENDS) exposure on craniofacial development. DESIGN Experimental preclinical design followed as pregnant murine dams were randomized and exposed to filtered air exposure, carrier exposure consisting of 50% volume of propylene glycol and vegetable glycine (ENDS Carrier) respectively, or carrier exposure with 20 mg/ml of nicotine added to the liquid vaporizer (ENDS carrier with nicotine). SETTING Preclinical murine model exposure using the SciReq exposure system. PARTICIPANTS C57BL6 adult 8 week old female pregnant mice and exposed in utero litters. INTERVENTIONS Exposure to control filtered air, ENDS carrier or ENDS carrier with nicotine added throughout gestation at 1 puff/minute, 4 h/day, five days a week. MAIN OUTCOME MEASURES Cephalometric measures of post-natal day 15 pups born as exposed litters. RESULTS Data suggests alterations to several facial morphology parameters in the developing offspring, suggesting electronic nicotine device systems may alter facial growth if used during pregnancy. CONCLUSIONS Future research should concentrate on varied formulations and exposure regimens of ENDS to determine timing windows of exposures and ENDS formulations that may be harmful to craniofacial development.
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Affiliation(s)
- Rajiv Kishinchand
- Department of Biomedical Education and Anatomy, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Mark Boyce
- Department of Biomedical Education and Anatomy, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Heema Vyas
- Department of Biomedical Education and Anatomy, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Leslie Sewell
- Department of Biomedical Education and Anatomy, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Amr Mohi
- Department of Biomedical Education and Anatomy, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Lexie Brengartner
- Department of Biomedical Education and Anatomy, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Roy Miller
- School of Nursing, 2647The Ohio State University, Columbus, OH 43210, USA
| | - Matthew W Gorr
- School of Nursing, 2647The Ohio State University, Columbus, OH 43210, USA.,Department of Physiology and Cell Biology, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Loren E Wold
- School of Nursing, 2647The Ohio State University, Columbus, OH 43210, USA.,Department of Physiology and Cell Biology, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - James Cray
- Department of Biomedical Education and Anatomy, 12305The Ohio State University College of Medicine, Columbus, OH 43210, USA.,Division of Biosciences, College of Dentistry, 2647The Ohio State University, Columbus, OH 43210, USA
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12
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Lysenkov SP, Muzhenya DV, Tuguz AR, Urakova TU, Shumilov DS, Thakushinov IA, Thakushinov RA, Tatarkova EA, Urakova DM. Cholinergic deficiency in the cholinergic system as a pathogenetic link in the formation of various syndromes in COVID-19. CHINESE J PHYSIOL 2023; 66:1-13. [PMID: 36814151 DOI: 10.4103/cjop.cjop-d-22-00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
According to recent data, several mechanisms of viral invasion of the central nervous system (CNS) have been proposed, one of which is both direct penetration of the virus through afferent nerve fibers and damage to the endothelium of cerebral vessels. It has been proven that the SARS-CoV-2 virus affects pathologically not only the human cardiorespiratory system but is also associated with a wide range of neurological diseases, cerebrovascular accidents, and neuromuscular pathologies. However, the observed post-COVID symptom complex in patients, manifested in the form of headache, "fog in the head," high temperature, muscle weakness, lowering blood pressure, does it make us think about the pathophysiological mechanisms that contribute to the development of this clinical picture? One possible explanation is a disruption in the signaling of the acetylcholine system (AChS) in the body. Viral invasions, and in particular COVID-19, can negatively affect the work of the AChS, disrupting its coordination activities. Therefore, the main goal of this literature review is to analyze the information and substantiate the possible mechanisms for the occurrence of post-COVID syndrome in people who have had COVID-19 from the standpoint of AChS dysfunctions.
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Affiliation(s)
- Sergey Petrovich Lysenkov
- FSBEI HE "Maikop State Technological University", Medical Institute, Maikop, Republic of Adygeya, Russia
| | | | - Aminat Ramazanovna Tuguz
- FSBEI HE "Adyghe State University", Immunogenetic Laboratory of the Research Institute of Complex Problems, Maikop, Republic of Adygeya, Russia
| | - Tamara Ur'evna Urakova
- FSBEI HE "Maikop State Technological University", Medical Institute, Maikop, Republic of Adygeya, Russia
| | - Dmitriy Sergeevich Shumilov
- FSBEI HE "Adyghe State University", Immunogenetic Laboratory of the Research Institute of Complex Problems, Maikop, Republic of Adygeya, Russia
| | | | | | - Elena Anatolevna Tatarkova
- FSBEI HE "Adyghe State University", Immunogenetic Laboratory of the Research Institute of Complex Problems, Maikop, Republic of Adygeya, Russia
| | - Diana Muratovna Urakova
- FSBEI HE "Maikop State Technological University", Medical Institute, Maikop, Republic of Adygeya, Russia
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13
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Tatsuta N, Asato K, Anai A, Suzuki T, Sakurai K, Ota C, Arima T, Sugawara J, Yaegashi N, Nakai K; Japan Environment and Children's Study Group. Timing of Maternal Smoking Cessation and Newborn Weight, Height, and Head Circumference. Obstet Gynecol 2023; 141:119-25. [PMID: 36701612 DOI: 10.1097/AOG.0000000000004991] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/18/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To examine the relationship between timing of smoking cessation during pregnancy and anthropometric indices of newborns. METHODS Mothers and neonates enrolled in the JECS (Japan Environment and Children's Study), a nationwide birth cohort study, were examined. Patients with full-term neonates were included in the analysis, and 73,025 mother-neonate pairs with complete data were identified. The mothers were classified into six groups according to smoking status during pregnancy (nonsmokers [Q1, n=44,198]; ex-smokers who quit before pregnancy [Q2, n=16,461]; ex-smokers who quit in the first trimester [Q3, n=8,948]; ex-smokers who quit in the second trimester [Q4, n=498]; ex-smokers who quit in the third trimester [Q5, n=651]; and smokers who smoked throughout pregnancy [Q6, n=2,269)]). Data on smoking were based on questionnaires administered in the first, second, or third trimester and 1 month after delivery. The primary outcomes were birth weight, height, and head circumference. RESULTS Compared with nonsmokers (Q1), no adverse outcomes were observed for ex-smokers who quit before pregnancy (Q2). The mean adjusted weights of male and female neonates were 135 g and 125 g lower, respectively, in Q6 participants than in Q1 participants. Comparing Q1 and Q6 participants, height was 0.6 cm and 0.7 cm smaller for male and female neonates, respectively. Head circumference in neonates of Q6 participants was 0.3 cm and 0.3 cm smaller for male and female neonates, respectively, than that in Q1 participants. Across all three measures, smoking cessation in the first and second trimester reduced the differential in outcomes between nonsmokers and individuals who smoked throughout pregnancy. CONCLUSION Smoking during pregnancy is associated with reduced newborn birth weight, height, and head circumference. Earlier smoking cessation during pregnancy reduces the adverse effects of smoking on fetal growth.
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14
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Lin SY, Wang L, Zhou W, Kitsantas P, Wen X, Xue H. E-cigarette use during pregnancy and its association with adverse birth outcomes in the US. Prev Med 2023; 166:107375. [PMID: 36481272 PMCID: PMC9888444 DOI: 10.1016/j.ypmed.2022.107375] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 11/01/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
The popularity of e-cigarette use among young adults is a growing concern. However, little is known about factors associated with e-cigarette use in pregnant women and birth outcomes. In this retrospective cohort study, we evaluated the influence of several factors on behavioral changes in e-cigarette use before and during pregnancy, and assessed the association between e-cigarette use and subsequent birth outcomes among pregnant women. The Population Assessment of Tobacco and Health (PATH) study, a government-sponsored national longitudinal study based in the US, Waves 1 through 4 (2013-2018) were used. Multivariate logistic regressions were conducted to estimate behavioral changes in e-cigarette use during pregnancy and subsequent influence on high-risk birth (e.g., preterm birth, low birth weight, birth defects, etc.) and fetal death. Although pregnant women who quit vaping before pregnancy (OR = 1.14, 95% CI 0.54-2.40) or had any use during pregnancy (OR = 1.19, 95% CI 0.38-3.73) showed non-differential risk of having a high-risk birth in comparison to women who did not initiate vaping, we observed that the usage of mint/menthol flavor was correlated with higher risk of fetus death (OR = 3.27, 95% CI 1.17-9.19). Healthcare providers should encourage e-cigarette users to quit prior to and during early pregnancy.
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Affiliation(s)
- Shuo-Yu Lin
- Department of Health Administration and Policy, College of Health and Human Services, George Mason University, Fairfax, VA, USA
| | - Liang Wang
- Robbins College of Health and Human Sciences, Baylor University, Waco, TX, USA
| | - Weiyu Zhou
- Department of Statistics, Volgenau School of Engineering, George Mason University, Fairfax, VA, USA
| | - Panagiota Kitsantas
- Department of Health Administration and Policy, College of Health and Human Services, George Mason University, Fairfax, VA, USA
| | - Xiaozhong Wen
- Department of Pediatrics, Jacobs School of Medicine & Biomedical Sciences, University of Buffalo, NY, USA.
| | - Hong Xue
- Department of Health Administration and Policy, College of Health and Human Services, George Mason University, Fairfax, VA, USA.
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15
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Morales-Suárez-Varela M, Puig BM, Kaerlev L, Peraita-Costa I, Perales-Marín A. Safety of Nicotine Replacement Therapy during Pregnancy: A Narrative Review. Int J Environ Res Public Health 2022; 20:250. [PMID: 36612572 PMCID: PMC9819948 DOI: 10.3390/ijerph20010250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Smoking during pregnancy is a public health problem worldwide and the leading preventable cause of fetal morbidity and mortality and obstetric disease. Although the risk of tobacco-related harm can be substantially reduced if mothers stop smoking in the first trimester, the proportion of women who do so remains modest; therefore, the treatment of smoking in pregnant women will be the first therapeutic measure that health professionals should adopt when providing care to pregnant women. The recommendation of nicotine replacement therapy during pregnancy remains controversial due to the potential effects on the health of the fetus. PURPOSE The aim of this review was to provide an overview of human studies about the use of nicotine replacement therapy during pregnancy, evaluating the efficacy and safety of the different formulations. METHODS The electronic databases PubMed and EMBASE were searched from May 2012 to May 2022. A total of 95 articles were identified through database searching using a combination of keywords. Out of 79 screened articles and after the removal of duplicates, 28 full-text articles were assessed for eligibility and 12 articles were finally included for review. RESULTS Although demonstrated to be effective in adult smokers, evidence in support of NRT in pregnant women is limited. The results of the apparent safety of the use of NRT during pregnancy contradict the FDA classification of the different NRT formulations. Faster-acting formulations seem to be the safest and even most beneficial forms for the offspring. CONCLUSIONS NRT is not completely harmless for the fetus or for the mother; however, if an adequate assessment of the risk-benefit binomial is made, its use during pregnancy to aid in quitting smoking does seem appropriate. It is necessary to establish individual recommendations on the formulation and dose to be used during pregnancy based on individual nicotinic needs.
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Affiliation(s)
- María Morales-Suárez-Varela
- Area of Preventive Medicine and Public Health, Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine, University of Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjassot, Spain
- CIBER in Epidemiology and Public Health (CIBERESP), Av. Monforte de Lemos, 3–5 Pabellón 11, Planta 0, 28029 Madrid, Spain
| | - Beatriz Marcos Puig
- Department of Obstetrics, La Fe University Hospital, Av. Fernando Abril Martorell 106, 46026 Valencia, Spain
| | - Linda Kaerlev
- Research Unit of Clinical Epidemiology, Institute of Clinical Research, University of Southern Denmark, Odense, J.B. Winsløws Vej 19, 3, 5000 Odense, Denmark
- Research Unit of Clinical Epidemiology, Center for Clinical Epidemiology, Odense University Hospital, Kløvervænget 30, Entrance 216 Ground Floor East, 5000 Odense, Denmark
| | - Isabel Peraita-Costa
- Area of Preventive Medicine and Public Health, Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine, University of Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjassot, Spain
- CIBER in Epidemiology and Public Health (CIBERESP), Av. Monforte de Lemos, 3–5 Pabellón 11, Planta 0, 28029 Madrid, Spain
| | - Alfredo Perales-Marín
- Department of Obstetrics, La Fe University Hospital, Av. Fernando Abril Martorell 106, 46026 Valencia, Spain
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16
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Pai VP, Levin M. HCN2 Channel-induced Rescue of Brain, Eye, Heart, and Gut Teratogenesis Caused by Nicotine, Ethanol, and Aberrant Notch Signaling. Wound Repair Regen 2022; 30:681-706. [PMID: 35662339 DOI: 10.1111/wrr.13032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/28/2022] [Accepted: 05/19/2022] [Indexed: 11/30/2022]
Abstract
Organogenesis is a complex process that can be disrupted by embryonic exposure to teratogens or mutation-induced alterations in signaling pathways, both of which result in organ mispatterning. Building on prior work in Xenopus laevis that showed that increased HCN2 ion channel activity rescues nicotine-induced brain & eye morphogenesis, we demonstrate much broader HCN2-based rescue of organ patterning defects. Induced HCN2 expression in both local or distant tissues can rescue CNS (brain & eye) as well as non-CNS (heart, & gut) organ defects induced by three different teratogenic conditions: nicotine exposure, ethanol exposure, or aberrant Notch protein. Rescue can also be induced by small-molecule HCN2 channel activators, even with delayed treatment initiation. Our results suggest that HCN2 (likely mediated by bioelectric signals) can be an effective regulator of organogenesis from all three germ layers (ectoderm, mesoderm, and endoderm) and reveal non-cell-autonomous influences on organ formation that work at considerable distance during embryonic development. These results suggest molecular bioelectric strategies for repair that could be explored in the future for regenerative medicine. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Vaibhav P Pai
- Allen Discovery Center at Tufts University, Medford, Massachusetts, USA
| | - Michael Levin
- Allen Discovery Center at Tufts University, Medford, Massachusetts, USA
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17
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Almeida R, Barbosa C, Pereira B, Diniz M, Baena A, Conde A. Tobacco Smoking during Pregnancy: Women's Perception about the Usefulness of Smoking Cessation Interventions. Int J Environ Res Public Health 2022; 19:6595. [PMID: 35682178 PMCID: PMC9180849 DOI: 10.3390/ijerph19116595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 12/10/2022]
Abstract
Tobacco consumption during pregnancy is a serious public health problem due to its negative effects on fetal development and on pregnant women's health and well-being. Thus, it is of utmost importance to plan and implement smoking cessation interventions, to prevent the negative impact of this risk factor, namely on children's health and development. This cross-sectional study aimed at exploring the perceptions and beliefs about the usefulness of smoking cessation interventions during pregnancy, in a sample of pregnant Portuguese women. The smoking use by pregnant women, as well as the risk factors associated with tobacco smoking during pregnancy, were also analyzed. The sample included 247 pregnant Portuguese women aged between 18-43-years-old (M = 30.30, SD = 5.02): 42.5% never smoked, 18.3% quit smoking before pregnancy, 19.0% quit smoking after getting pregnant and 20.2% were current smokers. The pregnant Portuguese women who smoked during pregnancy (current smokers or who quit smoking after getting pregnant) were mostly single or divorced, with lower education levels, showed a higher prevalence of clinically significant anxiety symptoms, and perceived smoking cessation interventions during pregnancy as less useful when compared to women who never smoked or quit smoking prior pregnancy. Daily or weekly smoking cessation interventions, implemented by health professionals such as doctors, nurses, or psychologists are the ones perceived as the most useful for pregnant women. These findings provide important clues for the planning of smoking cessation interventions during pregnancy, highlighting the domains that should be carefully monitored by health professionals. Specific strategies should also be used by health professionals to promote smoking cessation considering the demands of pregnancy and postpartum.
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Affiliation(s)
- Rita Almeida
- Portucalense Institute for Human Development (INPP), Portucalense University, 4200-072 Porto, Portugal; (R.A.); (C.B.); (B.P.); (M.D.)
| | - Carolina Barbosa
- Portucalense Institute for Human Development (INPP), Portucalense University, 4200-072 Porto, Portugal; (R.A.); (C.B.); (B.P.); (M.D.)
| | - Bruno Pereira
- Portucalense Institute for Human Development (INPP), Portucalense University, 4200-072 Porto, Portugal; (R.A.); (C.B.); (B.P.); (M.D.)
| | - Mateus Diniz
- Portucalense Institute for Human Development (INPP), Portucalense University, 4200-072 Porto, Portugal; (R.A.); (C.B.); (B.P.); (M.D.)
| | - Antoni Baena
- eHealth Center, Faculty of Health Sciences, Universitat Oberta de Catalunya, 08018 Barcelona, Spain;
- Tobacco Control Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, 08908 Barcelona, Spain
| | - Ana Conde
- Portucalense Institute for Human Development (INPP), Portucalense University, 4200-072 Porto, Portugal; (R.A.); (C.B.); (B.P.); (M.D.)
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18
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Greco ER, Engineer A, Saiyin T, Lu X, Zhang M, Jones DL, Feng Q. Maternal nicotine exposure induces congenital heart defects in the offspring of mice. J Cell Mol Med 2022; 26:3223-3234. [PMID: 35521669 PMCID: PMC9170818 DOI: 10.1111/jcmm.17328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/16/2022] [Accepted: 04/01/2022] [Indexed: 12/19/2022] Open
Abstract
Maternal cigarette smoking is a risk factor for congenital heart defects (CHDs). Nicotine replacement therapies are often offered to pregnant women following failed attempts of smoking cessation. However, the impact of nicotine on embryonic heart development is not well understood. In the present study, the effects of maternal nicotine exposure (MNE) during pregnancy on foetal heart morphogenesis were studied. Adult female mice were treated with nicotine using subcutaneous osmotic pumps at 0.75 or 1.5 mg/kg/day and subsequently bred with male mice. Our results show that MNE dose-dependently increased CHDs in foetal mice. CHDs included atrial and ventricular septal defects, double outlet right ventricle, unguarded tricuspid orifice, hypoplastic left ventricle, thickened aortic and pulmonary valves, and ventricular hypertrophy. MNE also significantly reduced coronary artery size and vessel abundance in foetal hearts. Moreover, MNE resulted in higher levels of oxidative stress and altered the expression of key cardiogenic regulators in the developing heart. Nicotine exposure reduced epicardial-to-mesenchymal transition in foetal hearts. In conclusion, MNE induces CHDs and coronary artery malformation in mice. These findings provide insight into the adverse outcomes of foetuses by MNE during pregnancy.
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Affiliation(s)
| | - Anish Engineer
- Department of Physiology and Pharmacology, London, Ontario, Canada
| | - Tana Saiyin
- Department of Physiology and Pharmacology, London, Ontario, Canada
| | - Xiangru Lu
- Department of Physiology and Pharmacology, London, Ontario, Canada
| | - MengQi Zhang
- Department of Physiology and Pharmacology, London, Ontario, Canada
| | - Douglas L Jones
- Department of Physiology and Pharmacology, London, Ontario, Canada.,Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Qingping Feng
- Department of Physiology and Pharmacology, London, Ontario, Canada.,Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
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19
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Hussain S, Breit KR, Thomas JD. The effects of prenatal nicotine and THC E-cigarette exposure on motor development in rats. Psychopharmacology (Berl) 2022; 239:1579-1591. [PMID: 35338387 DOI: 10.1007/s00213-022-06095-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/13/2022] [Indexed: 10/18/2022]
Abstract
RATIONALE In the USA, nicotine and cannabis are the most common licit and illicit drugs used among pregnant women. Importantly, nicotine and cannabis are now being combined for consumption via e-cigarettes, an increasingly popular delivery device. Both nicotine and tetrahydrocannabinol (THC), the primary psychoactive component of cannabis, cross the placenta barrier. However, the consequences of prenatal cannabis use are not well understood, and less is known about potential combination effects when consumed with nicotine, especially via e-cigarettes. OBJECTIVE The present study used a rodent model to examine how prenatal e-cigarette exposure to nicotine, THC, and the combination impacts motor development among offspring. METHODS Pregnant Sprague-Dawley rats were exposed to nicotine (36 mg/mL), THC (100 mg/mL), the combination, or vehicle via e-cigarette inhalation from gestational days (GD) 5-20. One sex pair per litter was tested on an early sensorimotor development task (postnatal days [PD] 12-20) and a parallel bar motor coordination task (PD 30-32). RESULTS Combined prenatal exposure to nicotine and THC delayed sensorimotor development, even though neither drug produced impairments on their own. In contrast, prenatal exposure to either nicotine or THC impaired motor coordination, whereas combined exposure exacerbated these effects, particularly among females. CONCLUSIONS These data illustrate that prenatal exposure to either nicotine or THC may alter motor development, and that the combination may produce more severe effects. These findings have important implications for pregnant women as we better understand the teratogenic effects of these drugs consumed via e-cigarettes.
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Affiliation(s)
- S Hussain
- Center for Behavioral Teratology, Department of Psychology, San Diego State University, CA, San Diego, USA
| | - K R Breit
- Center for Behavioral Teratology, Department of Psychology, San Diego State University, CA, San Diego, USA.,Department of Psychology, West Chester University of Pennsylvania, West Chester, PA, USA
| | - J D Thomas
- Center for Behavioral Teratology, Department of Psychology, San Diego State University, CA, San Diego, USA.
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20
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Costa TJ, De Oliveira JC, Giachini FR, Lima VV, Tostes RC, Bomfim GF. Programming of Vascular Dysfunction by Maternal Stress: Immune System Implications. Front Physiol 2022; 13:787617. [PMID: 35360231 PMCID: PMC8961444 DOI: 10.3389/fphys.2022.787617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 01/13/2022] [Indexed: 11/13/2022] Open
Abstract
A growing body of evidence highlights that several insults during pregnancy impact the vascular function and immune response of the male and female offspring. Overactivation of the immune system negatively influences cardiovascular function and contributes to cardiovascular disease. In this review, we propose that modulation of the immune system is a potential link between prenatal stress and offspring vascular dysfunction. Glucocorticoids are key mediators of stress and modulate the inflammatory response. The potential mechanisms whereby prenatal stress negatively impacts vascular function in the offspring, including poor hypothalamic–pituitary–adrenal axis regulation of inflammatory response, activation of Th17 cells, renin–angiotensin–aldosterone system hyperactivation, reactive oxygen species imbalance, generation of neoantigens and TLR4 activation, are discussed. Alterations in the immune system by maternal stress during pregnancy have broad relevance for vascular dysfunction and immune-mediated diseases, such as cardiovascular disease.
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Affiliation(s)
- Tiago J. Costa
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Júlio Cezar De Oliveira
- Health Education Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, Sinop, Brazil
| | - Fernanda Regina Giachini
- Institute of Biological Sciences and Health, Federal University of Mato Grosso, Barra do Garças, Brazil
| | - Victor Vitorino Lima
- Institute of Biological Sciences and Health, Federal University of Mato Grosso, Barra do Garças, Brazil
| | - Rita C. Tostes
- Health Education Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, Sinop, Brazil
| | - Gisele Facholi Bomfim
- Health Education Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, Sinop, Brazil
- *Correspondence: Gisele Facholi Bomfim,
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21
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Abstract
The use of electronic (e)-cigarettes was initially considered a beneficial solution to conventional cigarette smoking cessation. However, paradoxically, e-cigarette use is rapidly growing among nonsmokers, including youth and young adults. In 2019, this rapid growth resulted in an epidemic of hospitalizations and deaths of e-cigarette users (vapers) due to acute lung injury; this novel disease was termed e-cigarette or vaping use-associated lung injury (EVALI). Pathophysiologic mechanisms of EVALI likely involve cytotoxicity and neutrophilic inflammation caused by inhaled chemicals, but further details remain unknown. The undiscovered mechanisms of EVALI are a barrier to identifying biomarkers and developing therapeutics. Furthermore, adverse effects of e-cigarette use have been linked to chronic lung diseases and systemic effects on multiple organs. In this comprehensive review, we discuss the diverse spectrum of vaping exposures, epidemiological and clinical reports, and experimental findings to provide a better understanding of EVALI and the adverse health effects of chronic e-cigarette exposure.
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Affiliation(s)
- Jin-Ah Park
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;
| | - Laura E Crotty Alexander
- University of California at San Diego, La Jolla, California, USA.,Veterans Affairs (VA) San Diego Healthcare System, San Diego, California, USA
| | - David C Christiani
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA; .,Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
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22
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Jenkins S, Harker A, Gibb R. Distinct sex-dependent effects of maternal preconception nicotine and enrichment on the early development of rat offspring brain and behavior. Neurotoxicol Teratol 2022; 91:107062. [PMID: 34998861 DOI: 10.1016/j.ntt.2021.107062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/14/2021] [Accepted: 12/30/2021] [Indexed: 10/19/2022]
Abstract
Developmental nicotine exposure is harmful to offspring. Whereas much is known about the consequences of prenatal nicotine exposure, relatively little is understood about how maternal preconception nicotine impacts the next generation. Positive experiences, such as environmental enrichment/complexity, have considerable potential to improve developmental outcomes and even treat and prevent drug addiction. Therefore, the current study sought to identify how maternal exposure to moderate levels of nicotine prior to conception impacts offspring development, and if the presumably negative consequence of nicotine could be reversed by concurrent exposure to an enriched environment. We treated female Long Evans rats with nicotine in their drinking water (15 mg nicotine salt/L) for seven weeks while residing in either standard or enriched conditions. Both experiences occurred exclusively prior to mating. Nicotine exposure reduced dam fertility by ~20% (p = .06). Females reared their own litters, and offspring were tested in two assessments of early development: negative geotaxis and open field. Offspring were euthanized at weaning (P21), and their brains were processed with Golgi-Cox solution to allow quantification of dendritic spine density. Results indicate that neither maternal nicotine or enrichment had an impact on maternal care, but male offspring were impaired at negative geotaxis due to maternal nicotine, female offspring showed altered open field exploration due to maternal enrichment, and offspring of both sexes had increased spine density in OFC due to maternal enrichment. Therefore, this experiment provides novel insights into the unique, sex-dependent consequences of maternal preconception nicotine and enrichment on the early development of rat behavior and brain.
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Affiliation(s)
- Serena Jenkins
- Canadian Centre for Behavioural Neuroscience, University of Lethbridge, 4401 University Dr W, Lethbridge, AB T1K 3M4, Canada.
| | - Allonna Harker
- Canadian Centre for Behavioural Neuroscience, University of Lethbridge, 4401 University Dr W, Lethbridge, AB T1K 3M4, Canada.
| | - Robbin Gibb
- Canadian Centre for Behavioural Neuroscience, University of Lethbridge, 4401 University Dr W, Lethbridge, AB T1K 3M4, Canada.
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23
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Bednarczuk N, Williams EE, Dassios T, Greenough A. Nicotine replacement therapy and e-cigarettes in pregnancy and infant respiratory outcomes. Early Hum Dev 2022; 164:105509. [PMID: 34823165 DOI: 10.1016/j.earlhumdev.2021.105509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/10/2021] [Accepted: 11/16/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Nicotine replacement therapy (NRT) and e-cigarettes are recommended to pregnant women who wish to stop smoking. Albeit eliminating other harmful components of cigarettes, those alternatives still expose the developing fetus to nicotine. The lungs may be particularly vulnerable to damage by nicotine as there is widespread nicotinic-acetylcholine receptor expression in the lungs. There is, however, a paucity of information about the effect of NRT and e-cigarette use in pregnancy on infant respiratory outcomes. AIMS To explore the effect of NRT and e-cigarettes on the developing lung. STUDY DESIGN A literature search was undertaken to examine the use and safety of nicotine-replacement strategies in pregnancy, with a focus on infant respiratory outcomes. This included experimental studies investigating the effect of isolated "gestational" nicotine on the developing lung. OUTCOME MEASURES Respiratory outcomes in animal studies and infants. RESULTS Animal studies investigating the effect of gestational nicotine exposure on fetal lung development demonstrated abnormal lung growth; including abnormal airway branching and alveolar development. Consequently, offspring display altered pulmonary mechanics, including both increased respiratory rate and airway resistance. These findings mirror respiratory pathology observed in infants born to smoking mothers. Human trials of NRT and e-cigarette use in pregnancy have not identified adverse perinatal outcomes regarding reduced birthweight or prematurity, but have not considered infant and childhood respiratory outcomes. CONCLUSIONS Nicotine can impair fetal lung development, leading to concerns regarding the safety of NRT and e-cigarettes in pregnancy. Studies have yet to explore the impact of these nicotine-containing products on infant respiratory outcomes.
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Affiliation(s)
- Nadja Bednarczuk
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, SE5 9RS, United Kingdom
| | - Emma E Williams
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, SE5 9RS, United Kingdom
| | - Theodore Dassios
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, SE5 9RS, United Kingdom; Neonatal Intensive Care Centre, King's College Hospital NHS Foundation Trust, London, SE5 9RS, United Kingdom
| | - Anne Greenough
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, SE5 9RS, United Kingdom; Asthma UK Centre for Allergic Mechanisms in Asthma, King's College London, SE1 9RT, United Kingdom; National Institute for Health Research (NIHR) Biomedical Research Centre based at Guy's and St Thomas' NHS Foundation Trust and King's College London, SE1 9RT, United Kingdom.
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24
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Kavousi M, Pisinger C, Barthelemy JC, De Smedt D, Koskinas K, Marques-Vidal P, Panagiotakos D, Prescott EB, Tiberi M, Vassiliou VS, Løchen ML. Electronic cigarettes and health with special focus on cardiovascular effects: position paper of the European Association of Preventive Cardiology (EAPC). Eur J Prev Cardiol 2021; 28:1552-1566. [PMID: 32726563 DOI: 10.1177/2047487320941993] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 06/23/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND Tobacco use is the single largest preventable risk factor for premature death of non-communicable diseases and the second leading cause of cardiovascular disease. In response to the harmful effects of tobacco smoking, the use of electronic cigarettes (e-cigarettes) has emerged and gained significant popularity over the past 15 years. E-cigarettes are promoted as safe alternatives for traditional tobacco smoking and are often suggested as a way to reduce or quit smoking. However, evidence suggests they are not harmless. DISCUSSION The rapid evolution of the e-cigarette market has outpaced the legislator's regulatory capacity, leading to mixed regulations. The increasing use of e-cigarettes in adolescents and young individuals is of concern. While the long-term direct cardiovascular effects of e-cigarettes remain largely unknown, the existing evidence suggests that the e-cigarette should not be regarded as a cardiovascular safe product. The contribution of e-cigarette use to reducing conventional cigarette use and smoking cessation is complex, and the impact of e-cigarette use on long-term cessation lacks sufficient evidence. CONCLUSION This position paper describes the evidence regarding the prevalence of e-cigarette smoking, uptake of e-cigarettes in the young, related legislations, cardiovascular effects of e-cigarettes and the impact of e-cigarettes on smoking cessation. Knowledge gaps in the field are also highlighted. The recommendations from the population science and public health section of the European Association of Preventive Cardiology are presented.
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Affiliation(s)
- Maryam Kavousi
- Department of Epidemiology, University Medical Center Rotterdam, The Netherlands
| | - Charlotta Pisinger
- Centre for Clinical Research and Prevention, University of Copenhagen, Denmark
| | | | - Delphine De Smedt
- Department of Public Health and Primary Care, Ghent University, Belgium
| | | | | | | | | | | | | | - Maja-Lisa Løchen
- Department of Community Medicine, The Arctic University of Norway, Norway
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25
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Römer P, Putzer AG, Kemmerich R, Mathes B. Effects of Prenatal Electronic Cigarette Exposure On Foetal Development: a Review of the Literature. Geburtshilfe Frauenheilkd 2021; 81:1224-1237. [PMID: 34754272 PMCID: PMC8568504 DOI: 10.1055/a-1524-5155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/08/2021] [Indexed: 01/15/2023] Open
Abstract
Since their market launch in 2007, e-cigarettes gained popularity and were considered a relatively safe alternative to traditional cigarettes. Pregnant women and women of childbearing age in particular are increasingly turning to e-cigarettes. Little is known about the effects of prenatal exposure on the affected foetus. This paper aims to provide an overview of the current research on the effects of prenatal e-cigarette exposure on the foetus. Since studies in humans are lacking to date, this review refers only to animal and in vitro analyses. The PubMed and Web of Science databases were used for an extensive literature search. The search yielded N = 17 significant research papers. Possible sequelae resulting from prenatal exposure to traditional cigarettes were also seen in prenatal exposure to e-cigarettes. Prenatal e-cigarette exposure was found to be associated with increased DNA methylation overall, resulting in lower gene expression. This could adversely impact the development of affected children, especially in case of those genes relevant to their development. In mice, for example, this greatly reduced the cell vitality of neural and stem cells and increased cell death. Further, prenatal exposure to e-cigarettes resulted in numerous developmental disorders, such as malformations of facial morphology and lower birth weight. Moreover, in animal models the animals suffered from a deterioration of their short-term memory. Activity and cognitive flexibility increased, while anxiety behaviour decreased. It is clear that more research and especially studies of humans are needed on this issue. In addition, there is a need for more intense education of prenatal care professionals as well as women of childbearing age and during pregnancy.
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Affiliation(s)
- Pia Römer
- Bremer Initiative to Foster Early Child Development, Department 11, University of Bremen, Germany
| | - Amanda Goméz Putzer
- Bremer Initiative to Foster Early Child Development, Department 11, University of Bremen, Germany
| | - Robin Kemmerich
- Bremer Initiative to Foster Early Child Development, Department 11, University of Bremen, Germany
| | - Birgit Mathes
- Bremer Initiative to Foster Early Child Development, Department 11, University of Bremen, Germany
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26
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Roorda D, Königs M, Eeftinck Schattenkerk L, van der Steeg L, van Heurn E, Oosterlaan J. Neurodevelopmental outcome of patients with congenital gastrointestinal malformations: a systematic review and meta-analysis. Arch Dis Child Fetal Neonatal Ed 2021; 106:635-642. [PMID: 34112720 PMCID: PMC8543204 DOI: 10.1136/archdischild-2021-322158] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/12/2021] [Indexed: 12/29/2022]
Abstract
AIM Children with congenital gastrointestinal malformations may be at risk of neurodevelopmental impairment due to challenges to the developing brain, including perioperative haemodynamic changes, exposure to anaesthetics and postoperative inflammatory influences. This study aggregates existing evidence on neurodevelopmental outcome in these patients using meta-analysis. METHOD PubMed, Embase and Web of Science were searched for peer-reviewed articles published until October 2019. Out of the 5316 unique articles that were identified, 47 studies met the inclusion criteria and were included. Standardised mean differences (Cohen's d) between cognitive, motor and language outcome of patients with congenital gastrointestinal malformations and normative data (39 studies) or the studies' control group (8 studies) were aggregated across studies using random-effects meta-analysis. The value of (clinical) moderators was studied using meta-regression and diagnostic subgroups were compared. RESULTS The 47 included studies encompassed 62 cohorts, representing 2312 patients. Children with congenital gastrointestinal malformations had small-sized cognitive impairment (d=-0.435, p<0.001; 95% CI -0.567 to -0.302), medium-sized motor impairment (d=-0.610, p<0.001; 95% CI -0.769 to -0.451) and medium-sized language impairment (d=-0.670, p<0.001; 95% CI -0.914 to -0.425). Patients with short bowel syndrome had worse motor outcome. Neurodevelopmental outcome was related to the number of surgeries and length of total hospital stay, while no relations were observed with gestational age, birth weight, age and sex. INTERPRETATION This study shows that children with congenital gastrointestinal malformations exhibit impairments in neurodevelopmental outcome, highlighting the need for routine screening of neurodevelopment during follow-up.
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Affiliation(s)
- Daniëlle Roorda
- Department of Pediatric Surgery, Amsterdam Reproduction and Development Research Institute, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Free University Amsterdam, Amsterdam, The Netherlands
- Department of Pediatrics, Emma Neuroscience Group, Amsterdam Reproduction & Development Research Institute, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Marsh Königs
- Department of Pediatrics, Emma Neuroscience Group, Amsterdam Reproduction & Development Research Institute, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Laurens Eeftinck Schattenkerk
- Department of Pediatric Surgery, Amsterdam Reproduction and Development Research Institute, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Free University Amsterdam, Amsterdam, The Netherlands
| | - Lideke van der Steeg
- Department of Pediatric Surgery, Amsterdam Reproduction and Development Research Institute, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Free University Amsterdam, Amsterdam, The Netherlands
- Pediatric Surgery, Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Ernest van Heurn
- Department of Pediatric Surgery, Amsterdam Reproduction and Development Research Institute, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Free University Amsterdam, Amsterdam, The Netherlands
| | - Jaap Oosterlaan
- Department of Pediatrics, Emma Neuroscience Group, Amsterdam Reproduction & Development Research Institute, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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27
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Havermans A, Zwart EP, Cremers HWJM, van Schijndel MDM, Constant RS, Mešković M, Worutowicz LX, Pennings JLA, Talhout R, van der Ven LTM, Heusinkveld HJ. Exploring Neurobehaviour in Zebrafish Embryos as a Screening Model for Addictiveness of Substances. Toxics 2021; 9:toxics9100250. [PMID: 34678946 PMCID: PMC8539716 DOI: 10.3390/toxics9100250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/23/2021] [Accepted: 09/29/2021] [Indexed: 12/04/2022]
Abstract
Tobacco use is the leading cause of preventable death worldwide and is highly addictive. Nicotine is the main addictive compound in tobacco, but less is known about other components and additives that may contribute to tobacco addiction. The zebrafish embryo (ZFE) has been shown to be a good model to study the toxic effects of chemicals on the neurological system and thus may be a promising model to study behavioral markers of nicotine effects, which may be predictive for addictiveness. We aimed to develop a testing protocol to study nicotine tolerance in ZFE using a locomotion test with light-dark transitions as behavioral trigger. Behavioral experiments were conducted using three exposure paradigms: (1) Acute exposure to determine nicotine’s effect and potency. (2) Pre-treatment with nicotine dose range followed by a single dose of nicotine, to determine which pre-treatment dose is sufficient to affect the potency of acute nicotine. (3) Pre-treatment with a single dose combined with acute exposure to a dose range to confirm the hypothesized decreased potency of the acute nicotine exposure. These exposure paradigms showed that (1) acute nicotine exposure decreased ZFE activity in response to dark conditions in a dose-dependent fashion; (2) pre-treatment with increasing concentrations dose-dependently reversed the effect of acute nicotine exposure; and (3) a fixed pre-treatment dose of nicotine induced a decreased potency of the acute nicotine exposure. This effect supported the induction of tolerance to nicotine by the pre-treatment, likely through neuroadaptation. The interpretation of these effects, particularly in view of prediction of dependence and addictiveness, and suitability of the ZFE model to test for such effects of other compounds than nicotine, are discussed.
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28
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Arzua T, Jiang C, Yan Y, Bai X. The importance of non-coding RNAs in environmental stress-related developmental brain disorders: A systematic review of evidence associated with exposure to alcohol, anesthetic drugs, nicotine, and viral infections. Neurosci Biobehav Rev 2021; 128:633-647. [PMID: 34186153 PMCID: PMC8357057 DOI: 10.1016/j.neubiorev.2021.06.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 05/23/2021] [Accepted: 06/23/2021] [Indexed: 12/11/2022]
Abstract
Brain development is a dynamic and lengthy process that includes cell proliferation, migration, neurogenesis, gliogenesis, synaptogenesis, and pruning. Disruption of any of these developmental events can result in long-term outcomes ranging from brain structural changes, to cognitive and behavioral abnormality, with the mechanisms largely unknown. Emerging evidence suggests non-coding RNAs (ncRNAs) as pivotal molecules that participate in normal brain development and neurodevelopmental disorders. NcRNAs such as long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are transcribed from the genome but not translated into proteins. Many ncRNAs have been implicated as tuners of cell fate. In this review, we started with an introduction of the current knowledge of lncRNAs and miRNAs, and their potential roles in brain development in health and disorders. We then reviewed and discussed the evidence of ncRNA involvement in abnormal brain development resulted from alcohol, anesthetic drugs, nicotine, and viral infections. The complex connections among these ncRNAs were also discussed, along with potential overlapping ncRNA mechanisms, possible pharmacological targets for therapeutic/neuroprotective interventions, and potential biomarkers for brain developmental disorders.
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Affiliation(s)
- Thiago Arzua
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, 53226, USA; Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Congshan Jiang
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Yasheng Yan
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Xiaowen Bai
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, 53226, USA; Center of Systems Molecular Medicine, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
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29
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Nordenstam F. Prenatal nicotine exposure was associated with long-term impact on the cardiovascular system and regulation-Review. Acta Paediatr 2021; 110:2536-2544. [PMID: 33982809 DOI: 10.1111/apa.15914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/02/2021] [Accepted: 05/10/2021] [Indexed: 11/30/2022]
Abstract
AIM The aim of this structured review was to discuss knowledge of nicotine use during pregnancy and long-term effects on children's cardiovascular function. METHODS PubMed and MEDLINE were searched for original papers that covered various forms of nicotine exposure during pregnancy and this identified 314 papers published in English from inception of the databases to 1 March 2021. The research focus was prenatal exposure that had long-term effects on the cardiovascular system. The search was expanded from the reference list of the selected papers, which identified another 17 papers. RESULTS The 34 original papers that were included covered 172,696 subjects from foetuses to 19 years of age. Cardiovascular autonomic dysfunction was discussed in 12 of the papers and 16 studies reported on blood pressure. The remaining studies covered structural or functional changes in arterial wall or heart. There were convincing data on autonomic dysfunction and increased blood pressure. Some data were conflicting and problems with misclassification of exposure were evident. CONCLUSION Prenatal nicotine exposure was associated with long-term developmental changes in the cardiovascular system and regulation. There were no safe periods, doses or nicotine products during pregnancy and women should abstain when planning a pregnancy.
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Affiliation(s)
- Felicia Nordenstam
- Department of Women´s and Child´s Health Pediatric Cardiology Unit Karolinska University HospitalKarolinska Institute Stockholm Sweden
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30
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Huang SJ, Chen SQ, Lin Y, Yang HY, Ran J, Yan FF, Huang M, Liu XL, Hong LC, Zhang XD, Lyu GR, Wang ZX, Su YM. Maternal nicotine exposure aggravates metabolic associated fatty liver disease via PI3K/Akt signaling in adult offspring mice. Liver Int 2021; 41:1867-1878. [PMID: 33894105 DOI: 10.1111/liv.14902] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/13/2022]
Abstract
AIM The aim of this study is to investigate the effect of maternal nicotine exposure (MNE) on the development of metabolic associated fatty liver disease (MAFLD) in adulthood offspring and the underlying mechanism. METHODS Pregnant mice (n = 22) were subcutaneously injected with either saline vehicle (n = 11) or nicotine (n = 11) twice a day on gestational days 11-21. Offspring mice (n = 176) from both groups were weaned at postnatal day 21, and for 6 months after postnatal day 21, 96 mice were fed either a standard chow diet (n = 48) or a high-fat diet (n = 48). Serum lipid indicators, liver function indicators, insulin, and liver mitochondrial respiration were analyzed. The expression levels of fibrosis-related proteins, phosphorylated PI3K, phosphorylated Akt, sterol regulatory element-binding transcription factor 1 (SREBP1c), and peroxisome proliferator-activated receptor alpha (PPAR-α) were detected in the liver by immunohistochemistry and Western blotting. RESULTS MNE significantly decreased the weight of both maternal and offspring mice (~30%) and inhibited organ growth in offspring mice (P < .05). MNE also significantly increased serum levels of total bile acid, triglycerides, total cholesterol, glucose, alanine aminotransferase, aspartate aminotransferase, low-density lipoprotein, and insulin while decreasing serum high-density lipoprotein levels and mitochondrial respiration activity in mice fed either the normal diet or high-fat diet (all P < .05). These effects of MNE on lipid metabolism and insulin resistance were mediated via PI3K and Akt phosphorylation and down-regulation of SREBP1c and PPAR-α. CONCLUSION Our data indicate MNE induces lipid metabolism disorder and insulin resistance to promote MAFLD progression in adult offspring through activation of PI3K/Akt signaling and suppression of SREBP1c and PPARα protein expression.
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Affiliation(s)
- Shu-Jing Huang
- Department of Ultrasound, The School of Clinical Medicine, Fujian Medical University, Fuzhou, China.,Department of Ultrasound, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Shu-Qiang Chen
- Department of Ultrasound, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yan Lin
- Department of Ultrasound, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Hong-Yi Yang
- Gynecology and Obstetrics, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Jing Ran
- Gynecology and Obstetrics, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Fang-Fang Yan
- Endocrinology and Diabetes, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Mei Huang
- Department of Ultrasound, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Xian-Lan Liu
- Department of Ultrasound, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Long-Cheng Hong
- Department of Ultrasound, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Xiao-Dong Zhang
- Department of Ultrasound, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Guo-Rong Lyu
- Collaborative Innovation Center for Maternal and Infant Health Service Application Technology, Quanzhou Medical College, Quanzhou, China
| | - Zhan-Xiang Wang
- Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Yi-Ming Su
- Department of Ultrasound, The School of Clinical Medicine, Fujian Medical University, Fuzhou, China.,Department of Ultrasound, The First Affiliated Hospital of Xiamen University, Xiamen, China.,Collaborative Innovation Center for Maternal and Infant Health Service Application Technology, Quanzhou Medical College, Quanzhou, China
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31
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Wachholz GE, Rengel BD, Vargesson N, Fraga LR. From the Farm to the Lab: How Chicken Embryos Contribute to the Field of Teratology. Front Genet 2021; 12:666726. [PMID: 34367238 PMCID: PMC8339958 DOI: 10.3389/fgene.2021.666726] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/11/2021] [Indexed: 02/04/2023] Open
Abstract
Congenital anomalies and its causes, particularly, by external factors are the aim of the field called teratology. The external factors studied by teratology are known as teratogens and can be biological or environmental factors for example, chemicals, medications, recreational drugs, environmental pollutants, physical agents (e.g., X-rays and maternal hyperthermia) and maternal metabolic conditions. Proving the teratogenicity of a factor is a difficult task requiring epidemiology studies as well as experimental teratology evidence from the use of animal models, one of which is the chicken embryo. This model in particular has the advantage of being able to follow development live and in vivo, with rapid development hatching around 21 days, is cheap and easy to manipulate and to observe development. All this allows the chicken embryo to be used in drug screening studies, teratogenic evaluation and studies of mechanisms of teratogenicity. The chicken embryo shares morphological, biochemical and genetic similarities with humans as well as mammalian species, making them ideal to ascertain the actions of teratogens, as well as screen drugs to test for their safety. Pre-clinical trials for new drugs are carried out in rodents and rabbits, however, chicken embryos have been used to screen new compounds or analogs of thalidomide as well as to investigate how some drugs can lead to congenital malformations. Indeed, the chicken embryo has proved valuable in understanding how many congenital anomalies, seen in humans, arise following teratogen exposure. The aim of this review is to highlight the role of the chicken embryo as an experimental model for studies in teratology, exploring its use in drug screening studies, phenotypic evaluation and studies of teratogenic mechanisms of action. Here, we discuss many known teratogens, that have been evaluated using the chicken embryo model including some medicines, such as, thalidomide, valproic acid; recreational drugs including alcohol; environmental influences, such as viruses, specifically ZIKV, which is a newly discovered human teratogen. In addition, we discuss how the chicken embryo has provided insight on the mechanisms of teratogenesis of many compounds and also how this impact on drug safety.
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Affiliation(s)
- Gabriela Elis Wachholz
- Postgraduate Program of Genetics and Molecular Biology, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Genomic Medicine, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Teratogen Information Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Bruna Duarte Rengel
- Postgraduate Program of Genetics and Molecular Biology, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Genomic Medicine, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Teratogen Information Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Neil Vargesson
- School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Lucas Rosa Fraga
- Laboratory of Genomic Medicine, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Teratogen Information Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Morphological Sciences, Institute of Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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32
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Orzabal MR, Naik VD, Lee J, Wu G, Ramadoss J. Impact of gestational electronic cigarette vaping on amino acid signature profile in the pregnant mother and the fetus. Metabol Open 2021; 11:100107. [PMID: 34355157 PMCID: PMC8319793 DOI: 10.1016/j.metop.2021.100107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/10/2021] [Accepted: 07/11/2021] [Indexed: 11/25/2022] Open
Abstract
Background Electronic cigarettes (e-cigs) are a form of tobacco product that has become increasingly popular over the past decade. Despite the known health consequences of tobacco product exposure during pregnancy, a substantial number of daily smokers will continue to smoke during pregnancy. Our current knowledge on the effects of e-cig aerosol exposure during pregnancy is limited to a small number of animal studies, which have identified several e-cig aerosol-induced disruptions to the physiology of normal development. Methods To further assess the impact of prenatal e-cig aerosol exposure on maternal and fetal health, we examined the amino acid signature profiles in maternal and fetal plasma, as well as in the fetal lungs, a sensitive target organ for prenatal tobacco product exposure. Pregnant Sprague Dawley rats were randomly assigned to one of three groups and were exposed to either e-cig aerosols containing nicotine, e-cig aerosols without nicotine, or room air. Dams were exposed utilizing a state-of-the-art custom engineered e-cig vaping system that is compatible with commercially available e-cig atomizers and enables a translational inhalation delivery method comparable to human vaping. Results We determined that gestational exposure to e-cig aerosols results in significant alterations to the amino acid profile in the maternal and fetal compartments, including the fetal lungs. The data shows a targeted disruption to the nitric oxide pathway, branched-chain amino acid metabolism, fetal protein synthesis, and urea cycle. Conclusion The data presented herein provides additional support that gestational e-cig aerosol exposure can impact crucial biological processes and exemplifies the need for extensive research on exposure to e-cig aerosols. First report of e-cig induced alterations to maternal/fetal amino acid profile. Translational vaping paradigm utilizing custom engineered vaping system. Analysis of amino acids show gestational e-cig exposure has significant effects. Fetal lungs may be a sensitive target to gestational e-cig aerosol exposure. Marker of dysregulation in branched-chain amino acid metabolism and urea cycle.
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Affiliation(s)
- Marcus R Orzabal
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Vishal D Naik
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Jehoon Lee
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Guoyao Wu
- Department of Animal Science, College of Agriculture and Life Sciences, Texas A&M University, College Station, TX, USA
| | - Jayanth Ramadoss
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
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Zeng Y, Huang T, Wang N, Xu Y, Sun C, Huang M, Chen C, Oliver BG, Yi C, Chen H. L-Leucine Improves Metabolic Disorders in Mice With in-utero Cigarette Smoke Exposure. Front Physiol 2021; 12:700246. [PMID: 34276421 PMCID: PMC8281970 DOI: 10.3389/fphys.2021.700246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 06/04/2021] [Indexed: 01/18/2023] Open
Abstract
Objectives: Maternal cigarette smoke exposure (SE) causes intrauterine undernutrition, resulting in increased risk for metabolic disorders and type 2 diabetes in the offspring without sex differences. L-leucine supplementation has been shown to reduce body weight and improve glucose metabolism in both obese animals and humans. In this study, we aimed to determine whether postnatal L-leucine supplementation in female offspring can ameliorate the detrimental impact of maternal SE. Methods: Female Balb/c mice (6-week) were exposed to cigarette smoke (SE, 2 cigarettes/day) prior to mating for 5 weeks until the pups weaned. Sham dams were exposed to air during the same period. Half of the female offspring from the SE and SHAM dams were supplied with L-leucine via drinking water (1.5% w/w) after weaning (21-day) for 10 weeks and sacrificed at 13 weeks (adulthood). Results: Maternal SE during pregnancy resulted in smaller body weight and glucose intolerance in the offspring. L-leucine supplement in Sham offspring reduced body weight, fat mass, and fasting blood glucose levels compared with their untreated littermates; however somatic growth was not changed. L-leucine supplement in SE offspring improved glucose tolerance and reduced fat mass compared with untreated littermates. Conclusions: Postnatal L-leucine supplement could reduce fat accumulation and ameliorate glucose metabolic disorder caused by maternal SE. The application of leucine may provide a potential strategy for reducing metabolic disorders in offspring from mothers who continued to smoke during pregnancy.
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Affiliation(s)
- Yunxin Zeng
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Taida Huang
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Nan Wang
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Yi Xu
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Chunhui Sun
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Min Huang
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Chun Chen
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Brian G Oliver
- Faculty of Science, School of Life Sciences, University of Technology Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Sydney, NSW, Australia
| | - Chenju Yi
- Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Hui Chen
- Faculty of Science, School of Life Sciences, University of Technology Sydney, NSW, Australia
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Rimawi I, Ornoy A, Yanai J. Paternal and/or maternal preconception-induced neurobehavioral teratogenicity in animal and human models. Brain Res Bull 2021; 174:103-121. [PMID: 34087361 DOI: 10.1016/j.brainresbull.2021.05.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/06/2021] [Accepted: 05/28/2021] [Indexed: 01/15/2023]
Abstract
Prenatal insult exposure effects on the offspring, have and are still considered the main interest of most teratological studies, while paternal and maternal preconception effects have received relatively little interest. Once thought to be a myth, paternal exposure to insults leading to numerous detrimental effects in the offspring, has been confirmed on several occasions and is gaining increased attention. These effects could be demonstrated molecularly, biochemically and/or behaviorally. Different epigenetic mechanisms have been proposed for these effects to occur, including DNA methylation, histone modification and sperm RNA transmission. Paternal insult exposure has been shown to cause several neurobehavioral and developmental defects in the offspring. Findings on parental insult exposure effects on the progeny will be discussed in this review, with the main focus being on neurobehavioral effects after parental preconceptional exposure. The exposure to the insults induced long-lasting, mostly marked, defects. A few pioneering, prevention and reversal studies were published. Interestingly, most studies were conducted on paternal exposure and, at the present state of this field, on animal models. Clinical translation remains the subsequent challenge.
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Affiliation(s)
- Issam Rimawi
- The Ross Laboratory for Studies in Neural Birth Defects, Department of Medical Neurobiology, Institute for Medical Research - Israel-Canada and The Hebrew University-Hadassah Medical School, Box 12272, 91120, Jerusalem, Israel
| | - Asher Ornoy
- Adelson School of Medicine, Ariel University, Israel; Laboratory of Teratology, department of Medical Neurobiology, Institute for Medical Research - Israel-Canada and The Hebrew University-Hadassah Medical School, Box 12272, 91120 Jerusalem, Israel
| | - Joseph Yanai
- The Ross Laboratory for Studies in Neural Birth Defects, Department of Medical Neurobiology, Institute for Medical Research - Israel-Canada and The Hebrew University-Hadassah Medical School, Box 12272, 91120, Jerusalem, Israel; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, 27710, USA.
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Stanfill S, Tran H, Tyx R, Fernandez C, Zhu W, Marynak K, King B, Valentín-Blasini L, Blount BC, Watson C. Characterization of Total and Unprotonated (Free) Nicotine Content of Nicotine Pouch Products. Nicotine Tob Res 2021; 23:1590-1596. [PMID: 34233354 DOI: 10.1093/ntr/ntab030] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/02/2021] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Nicotine pouch products, oral smokeless products that contain nicotine but no tobacco leaf material, have recently entered the US marketplace. Available data indicate sales of these products in the United States have increased since 2018; however, the extent of use among US youth and adults is uncertain. METHODS To assay the chemistry of these emerging tobacco products, we analyzed 37 nicotine pouch brands from six total manufacturers. Almost all of the products had flavor descriptors (36 of 37), such as mint, licorice, coffee, cinnamon, and fruit. The amount of free nicotine, the form most easily absorbed, was calculated for each product using total nicotine, product pH, the appropriate pKa, and the Henderson-Hasselbalch equation. RESULTS Nicotine pouch products varied in pouch content mass, moisture content (1.12%‒47.2%), alkalinity (pH 6.86‒10.1), and % free nicotine (7.7%‒99.2%). Total nicotine content ranged from 1.29 to 6.11 mg/pouch, whereas free nicotine ranged from 0.166 to 6.07 mg/pouch. These findings indicate that nicotine and pH levels found in some of these nicotine pouches are similar to conventional tobacco products, such as moist snuff and snus, and that most of these pouch products are flavored. CONCLUSIONS Although these products likely lack many tobacco-related chemicals, each product analyzed contained nicotine, which is both addictive and can harm human health. Given that nicotine pouches may appeal to a spectrum of users, from novice to experienced users, it is important to include these emerging tobacco products in tobacco control research, policy, and practice. IMPLICATIONS These "tobacco-free" nicotine pouches have similar pH and nicotine content to conventional tobacco products, such as moist snuff and snus. Although they lack many tobacco-related chemicals, most are highly flavored which could increase experimentation from new users. Given that nicotine pouches may appeal to a spectrum of users, from novice to experienced users, in terms of their flavors and nicotine content, it is important to examine and include these emerging tobacco products as they relate to tobacco control research, policy, and practice.
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Affiliation(s)
- Stephen Stanfill
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Hang Tran
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Robert Tyx
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Carolina Fernandez
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Wanzhe Zhu
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Kristy Marynak
- Office on Smoking and Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Brian King
- Office on Smoking and Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Liza Valentín-Blasini
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Benjamin C Blount
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Clifford Watson
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
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Busho AC, Macisco JM, Oslock AG, Worly BL, Klein EG. Effectiveness of Cessation Messages Targeting Pregnant and Nonpregnant Female Smokers in the United States: A Cross-Sectional Analysis into the Impact of Pregnancy, Self-Efficacy, and Risk Perception. Matern Child Health J 2020; 24:1515-20. [PMID: 32857254 DOI: 10.1007/s10995-020-03001-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Roughly 10% of pregnant women are current smokers. Improving smoking cessation in this population before and during pregnancy is essential to prevent adverse fetal outcomes. This study aimed to examine cessation messages targeting American women. METHODS An obstetrics-gynecological clinic-based sample of female, current smokers of reproductive age (18-44 years old) was recruited (n = 135) from January to May 2019; half (51.2%) were currently pregnant. Participants completed a within-subjects study with a randomized set of gain- and loss-framed text-only pregnancy-related cessation messages (5 each). Each individual message was rated on a validated, 10-point scale for perceived effectiveness; responses to the seven items were averaged. Regression analyses examined differences in effectiveness ratings by message framing. RESULTS Study participants (female smokers) rated the gain-framed messages as slightly more effective than loss-framed messages (7.9 versus 7.7, p < 0.01). After adjusting for quit intention and pregnancy, the relationship between gain- and loss-framing and effectiveness ratings was modified by both self-efficacy and risk perceptions. Women who perceived high risks of smoking during pregnancy had higher effectiveness ratings of both gain- and loss-framed cessation messages, compared to women who perceived low risks. Lower cessation self-efficacy was significantly associated with lower effectiveness ratings for gain- and loss-framed messages (1.53 and 1.92, respectively; p < 0.05). CONCLUSIONS FOR PRACTICE Women with lower self-efficacy and low risk perception of smoking risks had the lowered effectiveness ratings for both frames of cessation messages. Enhancing self-efficacy and risk perceptions through clinical interventions may improve the effectiveness of targeted messages to promote quitting smoking before or during pregnancy.
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Abstract
The electronic cigarette (e-cigarette), for many considered as a safe alternative to conventional cigarettes, has revolutionised the tobacco industry in the last decades. In e-cigarettes, tobacco combustion is replaced by e-liquid heating, leading some manufacturers to propose that e-cigarettes have less harmful respiratory effects than tobacco consumption. Other innovative features such as the adjustment of nicotine content and the choice of pleasant flavours have won over many users. Nevertheless, the safety of e-cigarette consumption and its potential as a smoking cessation method remain controversial due to limited evidence. Moreover, it has been reported that the heating process itself can lead to the formation of new decomposition compounds of questionable toxicity. Numerous in vivo and in vitro studies have been performed to better understand the impact of these new inhalable compounds on human health. Results of toxicological analyses suggest that e-cigarettes can be safer than conventional cigarettes, although harmful effects from short-term e-cigarette use have been described. Worryingly, the potential long-term effects of e-cigarette consumption have been scarcely investigated. In this review, we take stock of the main findings in this field and their consequences for human health including coronavirus disease 2019 (COVID-19).
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Affiliation(s)
- Patrice Marques
- Department of Pharmacology, Faculty of Medicine, University of Valencia, Avda. Blasco Ibañez 15, 46010, Valencia, Spain.,Institute of Health Research INCLIVA, University Clinic Hospital of Valencia, Valencia, Spain
| | - Laura Piqueras
- Department of Pharmacology, Faculty of Medicine, University of Valencia, Avda. Blasco Ibañez 15, 46010, Valencia, Spain.,Institute of Health Research INCLIVA, University Clinic Hospital of Valencia, Valencia, Spain.,CIBERDEM-Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders, ISCIII, Av. Monforte de Lemos 3-5, 28029, Madrid, Spain
| | - Maria-Jesus Sanz
- Department of Pharmacology, Faculty of Medicine, University of Valencia, Avda. Blasco Ibañez 15, 46010, Valencia, Spain. .,Institute of Health Research INCLIVA, University Clinic Hospital of Valencia, Valencia, Spain. .,CIBERDEM-Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders, ISCIII, Av. Monforte de Lemos 3-5, 28029, Madrid, Spain.
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Rumrich IK, Hänninen O, Viluksela M, Vähäkangas K. Effect of Grandmaternal Smoking on Body Size and Proportions at Birth. Int J Environ Res Public Health 2021; 18:4985. [PMID: 34067158 DOI: 10.3390/ijerph18094985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/04/2021] [Accepted: 05/05/2021] [Indexed: 11/16/2022]
Abstract
Many long-term adverse effects of smoking during pregnancy are known. Increasingly, adverse effects in the grandchild after grandmaternal smoking during pregnancy are reported. We explored this in a birth cohort of 24,000 grandmother–mother–child triads identified from the Finnish Medical Birth Register in 1991–2016. Multiple logistic regression was used to analyze the association between any smoking during pregnancy by both grandmother and mother, or only grandmother or mother on adverse birth outcomes. No smoking by neither grandmother nor mother was used as the reference. As endpoints, preterm birth, low birth weight, small for gestational age (birth weight, birth length, head circumference), and body proportionality (low ponderal index, high brain-to-body ratio, high head-to-length ratio) were included. Smoking by both grandmother and mother was consistently associated with higher risks than smoking only by the mother. Birth length and weight were especially sensitive to (grand)maternal smoking. In conclusion, the combined effect of grandmaternal and maternal smoking is associated with higher risks than only maternal smoking.
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Yan R, Chen XL, Xu YM, Lau ATY. Epimutational effects of electronic cigarettes. Environ Sci Pollut Res Int 2021; 28:17044-17067. [PMID: 33655478 DOI: 10.1007/s11356-021-12985-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 02/11/2021] [Indexed: 02/06/2023]
Abstract
Electronic cigarettes (e-cigarettes), since they do not require tobacco combustion, have traditionally been considered less harmful than conventional cigarettes (c-cigarettes). In recent years, however, researchers have found many toxic compounds in the aerosols of e-cigarettes, and numerous studies have shown that e-cigarettes can adversely affect the human epigenome. In this review, we provide an update on recent findings regarding epigenetic outcomes of e-cigarette aerosols. Moreover, we discussed the effects of several typical e-cigarette ingredients (nicotine, tobacco-specific nitrosamines, volatile organic compounds, carbonyl compounds, and toxic metals) on DNA methylation, histone modifications, and noncoding RNA expression. These epigenetic effects could explain some of the diseases caused by e-cigarettes. It also reminds the public that like c-cigarettes, inhaling e-cigarette aerosols could also be accompanied with potential epigenotoxicity on the human body.
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Affiliation(s)
- Rui Yan
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Clinical Research Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
| | - Xu-Li Chen
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Clinical Research Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
| | - Yan-Ming Xu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China.
- Clinical Research Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China.
| | - Andy T Y Lau
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China.
- Clinical Research Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China.
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Hernandez ML, Burbank AJ, Alexis NE, Rebuli ME, Hickman ED, Jaspers I, Guidos G. Electronic Cigarettes and Their Impact on Allergic Respiratory Diseases: A Work Group Report of the AAAAI Environmental Exposures and Respiratory Health Committee. J Allergy Clin Immunol Pract 2021; 9:1142-1151. [PMID: 33547027 PMCID: PMC8232370 DOI: 10.1016/j.jaip.2020.12.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 11/23/2022]
Abstract
The explosive rise in popularity of electronic cigarette (e-cig) devices over the past decade has led to controversies over the role of these devices in smoking cessation and harm reduction from combustible cigarette smoking. Increased recognition of potential direct harms of e-cigs, including life-threatening and fatal cases of e-cig and vaping product use-associated lung injury, has emphasized the need to curb use until safety can be established. Of particular concern is the steep rise in e-cig use among teenagers and young adults who have never smoked and among individuals with underlying lung disease, such as asthma. In this report, we describe the different types of e-cig devices available, summarize the available data on the potential health benefits and detriments of e-cig use, and highlight the findings of studies examining e-cigs as smoking cessation tools. Because e-cigs have only gained popularity in the last few years, very few studies have been able to demonstrate an impact of e-cig use on harm reduction related to combustible cigarettes. Moreover, the health effects of e-cigs at a population level must be balanced against the harms of e-cig use, which include nicotine dependence and promoting initiation of cigarette use amongst "never smokers." With respect to smoking cessation, e-cigs appear to serve as switching products that may help individuals reduce or quit cigarette use, but do not address nicotine addiction. Finally, we discuss our recommendations for ways that health care providers can screen and counsel patients on e-cig use. The goal of this report is to provide health care providers with the most recent information on this topic so that they can educate patients on the potential pros and cons of e-cig use.
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Affiliation(s)
- Michelle L Hernandez
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, the University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC.
| | - Allison J Burbank
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, the University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC
| | - Neil E Alexis
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, the University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC
| | - Meghan E Rebuli
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, the University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC
| | - Elise D Hickman
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, the University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC
| | - Ilona Jaspers
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, the University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC
| | - Guillermo Guidos
- Department of Immunology, School of Medicine, Instituto Politecnico Nacional, Mexico City, Mexico
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Enogieru AB, Momodu OI. The Developing Cerebellum as a Target for Toxic Substances: Protective Role of Antioxidants. Cerebellum 2021; 20:614-30. [PMID: 33474620 DOI: 10.1007/s12311-021-01231-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/05/2021] [Indexed: 10/22/2022]
Abstract
Cerebellar development begins during the late embryological period and continues to undergo organizational changes long after birth. The cerebellum is particularly susceptible to developmental abnormalities on exposure to oxidants and free radicals, thus leading to oxidative stress. Oxidative stress occurs when there is an imbalance between reactive oxygen species generation and antioxidant defences which may disrupt signalling pathways, leading to cerebellar anomalies and dysfunction. In this regard, this review assesses current research underlining the importance of the cerebellum, provides an update on substances affecting cerebellar development and highlights some promising antioxidants that may play a role in attenuating toxicity in the developing cerebellum. To accomplish this, the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) system was employed and key scientific databases such as Science Direct, PubMed, Scopus, Web of Science and Google Scholar were searched to explore and collect information on the cerebellum and the role of antioxidants during its development. Originally, 109 articles were obtained but 22 articles which met the inclusion criteria were selected for the review. These findings provide an updated compilation of antioxidants capable of attenuating oxidative damage in the developing cerebellum, thus allowing future interdisciplinary studies in the form of clinical applications for screening and possible development of novel therapeutic agents from the identified products.
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Dinh QP, Novirsa R, Jeong H, Nugraha WC, Addai-Arhin S, Viet PH, Tominaga N, Ishibashi Y, Arizono K. Mercury, cadmium, and lead in cigarettes from international markets: concentrations, distributions and absorption ability of filters. J Toxicol Sci 2021; 46:401-411. [PMID: 34470992 DOI: 10.2131/jts.46.401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Mercury (Hg), cadmium (Cd), and lead (Pb) concentrations in marketed cigarettes from South Korea, Vietnam, Japan, Indonesia, Taiwan, Thailand, the United Kingdom (UK), Belgium, Italy, Finland, and France were investigated. The cigarettes from Vietnam and Thailand had the highest trend of Hg. Meanwhile, Cd was found higher in cigarettes from Thailand, the UK, and Belgium. Pb concentrations in cigarettes from Belgium, the UK, and Korea were higher than others. The average of these heavy metals concentrated in cigarettes was in the order of Pb > Cd > Hg. Furthermore, the contents of these heavy metals in cigarette leaves were much higher than in filter and rolling paper. There was a significant positive correlation between Hg and Cd, but no correlation between Cd and Pb and between Hg and Pb. Significant positive correlations of nicotine with Hg and Cd but not Pb in the cigarette were observed. Activated carbon filters (Ce-C) absorb Cd and Pb from cigarette leaves and rolling paper indicated a higher trapping trend than cellulose acetate filter without activated carbon (Ce). The trapping ratios of Ce-C (Cd: 5.53%, Pb:5.41%) were higher than Ce (Cd:3.09%, Pb:5.49%). On the other hand, Hg had lower absorption by both types of filters (Ce:0.15%, Ce-C:0.02%). This revealed that Hg, Cd and Pb absorption ability by both filters was relatively lower to the total concentration of these metals in tobacco leaves and rolling paper. The concern was that the higher concentrations of metals such as Hg, Cd and Pb in cigarettes might exist in mainstream smoke.
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Affiliation(s)
- Quang Phan Dinh
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
- VNU University of Science, Vietnam National University, Vietnam
| | - Randy Novirsa
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Huiho Jeong
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Willy Cahya Nugraha
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Sylvester Addai-Arhin
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Pham Hung Viet
- VNU University of Science, Vietnam National University, Vietnam
| | - Nobuaki Tominaga
- Department of Creative Engineering, National Institute of Technology, Ariake College
| | - Yasuhiro Ishibashi
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
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Kheirkhah Rahimabad P, Anthony TM, Jones AD, Eslamimehr S, Mukherjee N, Ewart S, Holloway JW, Arshad H, Commodore S, Karmaus W. Nicotine and Its Downstream Metabolites in Maternal and Cord Sera: Biomarkers of Prenatal Smoking Exposure Associated with Offspring DNA Methylation. Int J Environ Res Public Health 2020; 17:ijerph17249552. [PMID: 33419350 PMCID: PMC7766890 DOI: 10.3390/ijerph17249552] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022]
Abstract
Nicotine is a major constituent of cigarette smoke. Its primary metabolite in maternal and cord sera, cotinine, is considered a biomarker of prenatal smoking. Nicotine and cotinine half-lives are decreased in pregnancy due to their increased rate of metabolism and conversion to downstream metabolites such as norcotinine and 3-hydroxycotinine. Hence, downstream metabolites of nicotine may provide informative biomarkers of prenatal smoking. In this study of three generations (F0-mothers, F1-offspring who became mothers, and F2-offspring), we present a biochemical assessment of prenatal smoking exposure based on maternal and cord sera levels of nicotine, cotinine, norcotinine, and 3-hydroxycotinine. As potential markers of early effects of prenatal smoking, associations with differential DNA methylation (DNAm) in the F1- and F2-offspring were assessed. All metabolites in maternal and cord sera were associated with self-reported prenatal smoking, except for nicotine. We compared maternal self-report of smoking in pregnancy to biochemical evidence of prenatal smoking exposure. Self-report of F0-mothers of F1 in 1989–1990 had more accuracy identifying prenatal smoking related to maternal metabolites in maternal serum (sensitivity = 94.6%, specificity = 86.9%) compared to self-reports of F1-mothers of F2 (2010–2016) associated with cord serum markers (sensitivity = 66.7%, specificity = 78.8%). Nicotine levels in sera showed no significant association with any DNAm site previously linked to maternal smoking. Its downstream metabolites, however, were associated with DNAm sites located on the MYO1G, AHRR, and GFI1 genes. In conclusion, cotinine, norcotinine, and 3-hydroxycotinine in maternal and cord sera provide informative biomarkers and should be considered when assessing prenatal smoking. The observed association of offspring DNAm with metabolites, except for nicotine, may imply that the toxic effects of prenatal nicotine exposure are exerted by downstream metabolites, rather than nicotine. If differential DNA methylation on the MYO1G, AHRR, and GFI1 genes transmit adverse effects of prenatal nicotine exposure to the child, there is a need to investigate whether preventing changes in DNA methylation by reducing the metabolic rate of nicotine and conversion to harmful metabolites may protect exposed children.
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Affiliation(s)
- Parnian Kheirkhah Rahimabad
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, TN 38152, USA; (S.E.); (N.M.); (W.K.)
- Correspondence:
| | - Thilani M. Anthony
- Department of Biochemistry & Molecular Biology, Michigan State University, East Lansing, MI 48824, USA; (T.M.A.); (A.D.J.)
| | - A. Daniel Jones
- Department of Biochemistry & Molecular Biology, Michigan State University, East Lansing, MI 48824, USA; (T.M.A.); (A.D.J.)
| | - Shakiba Eslamimehr
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, TN 38152, USA; (S.E.); (N.M.); (W.K.)
| | - Nandini Mukherjee
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, TN 38152, USA; (S.E.); (N.M.); (W.K.)
| | - Susan Ewart
- Department of Large Animal Clinical Sciences, Michigan State University, East Lansing, MI 48824, USA;
| | - John W. Holloway
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK;
| | - Hasan Arshad
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK;
- The David Hide Asthma and Allergy Research Centre, Isle of Wight, Newport PO30 5TG, UK
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton, Hampshire SO16 6YD, UK
| | - Sarah Commodore
- Department of Environmental and Occupational Health, Indiana University, Bloomington, IN 47405, USA;
| | - Wilfried Karmaus
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, TN 38152, USA; (S.E.); (N.M.); (W.K.)
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Klein EG, Macisco J, Lazard A, Busho A, Oslock A, Worly B. Framing pregnancy-related smoking cessation messages for women of reproductive age. Addict Behav Rep 2020; 12:100290. [PMID: 32637566 PMCID: PMC7330874 DOI: 10.1016/j.abrep.2020.100290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/06/2020] [Accepted: 06/07/2020] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Communicating harms of smoking and benefits of quitting to tobacco users to motivate cessation is critical to reduce the burden of tobacco-related disease. Most messaging strategies focus on health risks of smoking using loss-framing; yet, gain-framed messages to increase confidence in quitting have shown promise for smokers with lower self-efficacy. This study examined the impact of message framing on perceived effectiveness of targeted, pregnancy-related smoking cessation messages among pregnant and not-pregnant smoking women of reproductive age. METHODS An obstetrics-gynecological clinic-based sample of female, current smokers of reproductive age (18-44 years old) was recruited during January to May 2019 (n = 135). Participants self-reported ratings for 10 pregnancy-related cessation messages (half gain-framed) on a validated perceived effectiveness scale. Multivariable regression analyses were conducted using generalized estimating equations to account for clustering by message themes. RESULTS Gain-framed messages were rated significantly higher (0.20; p < 0.01) compared to loss-framed messages for perceived effectiveness, after accounting for quit intentions, self-efficacy to quit, health literacy, cessation risk perceptions, nicotine dependence, and pregnancy status. CONCLUSIONS Gain-framed health messages about cessation were deemed to be more effective than loss-framed messages among adult female smokers. Targeted, positively framed messages to highlight the benefits of quitting to women of reproductive age show promise as a strategy to promote smoking cessation.
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Affiliation(s)
- Elizabeth G. Klein
- College of Public Health, Ohio State University, Columbus, OH, United States
| | - Joseph Macisco
- College of Public Health, Ohio State University, Columbus, OH, United States
| | - Allison Lazard
- Hussman School of Journalism and Media, University of North Carolina, Chapel Hill, NC, United States
| | - Audrey Busho
- College of Medicine, Ohio State University, Columbus, OH, United States
| | - Austin Oslock
- College of Public Health, Ohio State University, Columbus, OH, United States
- College of Medicine, Ohio State University, Columbus, OH, United States
| | - Brett Worly
- College of Medicine, Ohio State University, Columbus, OH, United States
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45
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Semick SA, Collado-Torres L, Markunas CA, Shin JH, Deep-Soboslay A, Tao R, Huestis M, Bierut LJ, Maher BS, Johnson EO, Hyde TM, Weinberger DR, Hancock DB, Kleinman JE, Jaffe AE. Developmental effects of maternal smoking during pregnancy on the human frontal cortex transcriptome. Mol Psychiatry 2020; 25:3267-3277. [PMID: 30131587 PMCID: PMC6438764 DOI: 10.1038/s41380-018-0223-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 01/05/2023]
Abstract
Cigarette smoking during pregnancy is a major public health concern. While there are well-described consequences in early child development, there is very little known about the effects of maternal smoking on human cortical biology during prenatal life. We therefore performed a genome-wide differential gene expression analysis using RNA sequencing (RNA-seq) on prenatal (N = 33; 16 smoking-exposed) as well as adult (N = 207; 57 active smokers) human postmortem prefrontal cortices. Smoking exposure during the prenatal period was directly associated with differential expression of 14 genes; in contrast, during adulthood, despite a much larger sample size, only two genes showed significant differential expression (FDR < 10%). Moreover, 1,315 genes showed significantly different exposure effects between maternal smoking during pregnancy and direct exposure in adulthood (FDR < 10%)-these differences were largely driven by prenatal differences that were enriched for pathways previously implicated in addiction and synaptic function. Furthermore, prenatal and age-dependent differentially expressed genes were enriched for genes implicated in non-syndromic autism spectrum disorder (ASD) and were differentially expressed as a set between patients with ASD and controls in postmortem cortical regions. These results underscore the enhanced sensitivity to the biological effect of smoking exposure in the developing brain and offer insight into how maternal smoking during pregnancy affects gene expression in the prenatal human cortex. They also begin to address the relationship between in utero exposure to smoking and the heightened risks for the subsequent development of neuropsychiatric disorders.
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Affiliation(s)
- Stephen A. Semick
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA
| | - Leonardo Collado-Torres
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA,Center for Computational Biology, Johns Hopkins University,
Baltimore, MD, 21205, USA
| | - Christina A. Markunas
- Behavioral and Urban Health Program, Behavioral Health and
Criminal Justice Division, RTI International, Research Triangle Park, NC, 27709,
USA
| | - Joo Heon Shin
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA
| | - Amy Deep-Soboslay
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA
| | - Ran Tao
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA
| | - Marilyn Huestis
- The Lambert Center for the Study of Medicinal Cannabis and
Hemp, Institute of Emerging Health Professions, Thomas Jefferson University,
Philadelphia, PA, USA
| | - Laura J. Bierut
- Department of Psychiatry, Washington University School of
Medicine, St. Louis, MO 63110, USA
| | - Brion S. Maher
- Department of Mental Health, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD, 21205, USA
| | - Eric O. Johnson
- Fellow Program and Behavioral Health and Criminal Justice
Division, RTI International, Research Triangle Park, NC, 27709, USA
| | - Thomas M. Hyde
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA,Department of Psychiatry and Behavioral Sciences, Johns
Hopkins School of Medicine, Baltimore, MD 21205, USA,Department of Neurology, Johns Hopkins School of Medicine,
Baltimore, MD, 21205, USA
| | - Daniel R. Weinberger
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA,Department of Psychiatry and Behavioral Sciences, Johns
Hopkins School of Medicine, Baltimore, MD 21205, USA,Department of Neurology, Johns Hopkins School of Medicine,
Baltimore, MD, 21205, USA,Department of Neuroscience, Johns Hopkins School of
Medicine, Baltimore, MD, 21205, USA,McKusick-Nathans Institute of Genetic Medicine, Johns
Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Dana B. Hancock
- Behavioral and Urban Health Program, Behavioral Health and
Criminal Justice Division, RTI International, Research Triangle Park, NC, 27709,
USA
| | - Joel E. Kleinman
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA,Department of Psychiatry and Behavioral Sciences, Johns
Hopkins School of Medicine, Baltimore, MD 21205, USA,Contact: Lieber Institute for Brain Development,
855 N Wolfe St, Ste 300. Baltimore MD 21205. Ph: 1-410-955-1000
| | - Andrew E. Jaffe
- Lieber Institute for Brain Development, Johns Hopkins
Medical Campus, Baltimore, MD, 21205, USA,Center for Computational Biology, Johns Hopkins University,
Baltimore, MD, 21205, USA,Department of Mental Health, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD, 21205, USA,McKusick-Nathans Institute of Genetic Medicine, Johns
Hopkins School of Medicine, Baltimore, MD 21205, USA,Department of Biostatistics, Johns Hopkins Bloomberg
School of Public Health, Baltimore, MD, 21205, USA,Contact: Lieber Institute for Brain Development, 855
N Wolfe St, Ste 300. Baltimore MD 21205. Ph: 1-410-955-1000
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Jamshed L, Perono GA, Jamshed S, Holloway AC. Early Life Exposure to Nicotine: Postnatal Metabolic, Neurobehavioral and Respiratory Outcomes and the Development of Childhood Cancers. Toxicol Sci 2020; 178:3-15. [PMID: 32766841 PMCID: PMC7850035 DOI: 10.1093/toxsci/kfaa127] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Cigarette smoking during pregnancy is associated with numerous obstetrical, fetal, and developmental complications, as well as an increased risk of adverse health consequences in the adult offspring. Nicotine replacement therapy and electronic nicotine delivery systems (e-cigarettes) have been developed as a pharmacotherapy for smoking cessation and are considered safer alternatives for women to smoke during pregnancy. The safety of nicotine replacement therapy use during pregnancy has been evaluated in a limited number of short-term human trials, but there is currently no information on the long-term effects of developmental nicotine exposure in humans. However, animal studies suggest that nicotine alone may be a key chemical responsible for many of the long-term effects associated with maternal cigarette smoking on the offspring and increases the risk of adverse neurobehavioral outcomes, dysmetabolism, respiratory illness, and cancer. This review will examine the long-term effects of fetal and neonatal nicotine exposure on postnatal health.
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Affiliation(s)
- Laiba Jamshed
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Genevieve A Perono
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Shanza Jamshed
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Alison C Holloway
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
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47
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Lewandowska M, Więckowska B, Sztorc L, Sajdak S. Smoking and Smoking Cessation in the Risk for Fetal Growth Restriction and Low Birth Weight and Additive Effect of Maternal Obesity. J Clin Med 2020; 9:E3504. [PMID: 33138256 DOI: 10.3390/jcm9113504] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022] Open
Abstract
Many studies have shown that neonates of smoking mothers have a lower birth weight, but several issues remain poorly studied, e.g., the effects of giving up smoking or the combined effects of smoking and maternal obesity. Therefore, we evaluated a prospective cohort of 912 mothers in a single pregnancy, recruited in Poland, in 2015−2016. In the cohort, we recorded 72 (7.9%) newborns with birth weight <10th percentile, 21 (2.3%) fetal growth restriction (FGR) cases, and 60 (6.6%) low birth weight (LBW, <2500 g) newborns. In the cohort, 168 (18.4%) women smoked before pregnancy; the mean number of cigarettes/day was 10.8 (1–30), and the mean number of years of cigarette smoking was 8.5 (1–25). Among smokers, 57 (6.3%) women smoked in the first trimester. Adjusted odds ratio (AOR) of newborn outcomes (with 95% confidence intervals, CI) was calculated in multi-dimensional logistic regressions. Compared to participants who had never smoked, smoking before pregnancy was associated with a higher odds ratio of birth weight <10th percentile (AOR = 1.93, CI: 1.08–3.44, p = 0.027), but the result for LBW (AOR = 2.76, CI: 1.05–7.26, p = 0.039) and FGR (AOR = 1.13, CI: 0.38–3.36, p = 0.822) had the wider confidence interval or was insignificant. Effects of smoking cessation before pregnancy were statistically insignificant for the studied outcomes. Smoking in the first trimester was associated with a higher risk of birth weight <10th percentile (AOR = 4.68, CI: 2.28–9.62, p < 0.001), LBW (AOR = 6.42, CI: 1.84–22.36, p = 0.004), and FGR (AOR = 3.60, CI: 0.96–13.49, p = 0.057). Smoking cessation in the second/third trimester was associated with a higher odds ratio of birth weight <10th percentile (AOR = 4.54, CI: 1.58–13.02, p = 0.005), FGR (AOR = 3.36, CI: 0.6–18.74, p = 0.167), and LBW (AOR = 2.14, CI: 0.62–7.36), p = 0.229), to a similar degree to smoking in the first trimester. The odds ratios were higher in the subgroup of pre-pregnancy body mass index ≥25 kg/m2 for the risk of birth weight <10th percentile (AOR = 6.39, CI: 2.01–20.34, p = 0.002) and FGR (AOR = 6.25, CI: 0.86–45.59, p = 0.071). The length of cigarette smoking time was also the risk factor for studied outcomes. Conclusions: Smoking in the first trimester increased the studied risks, and the coexistence of excessive maternal weight increased the effects. Smoking cessation during the second/third trimester did not have a protective effect.
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48
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Schaible B, Annie F, Seybold D, Calhoun BC. Ecological study of effects of industrial watershed on Müllerian anomalies in an obstetric population. Ecotoxicol Environ Saf 2020; 202:110819. [PMID: 32590208 DOI: 10.1016/j.ecoenv.2020.110819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/26/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To ascertain the prevalence of Müllerian anomalies within an obstetrical population in relation to official hazardous waste sites designated by the Environmental Protection Agency (EPA) in West Virginia. METHODS Observational study of obstetric patients in a tertiary care center with uterine ultrasounds from January 2006 to June 2017. An Optimized Hot Spot analysis and Ripley's K- Function was constructed to ascertain if there is an association with environmental exposures. RESULTS The prevalence of Müllerian anomalies in our obstetric study sample was 0.9% (118/13,040). The most common were septate (47; 39.8%) and bicornuate (46; 39.0%). The distribution of Müllerian anomalies was non-random illustrated by Optimized Hot Spot Analysis locating several statistically significant zip codes of Müllerian anomalies in relation to zip codes that include EPA facilities. CONCLUSION The distribution of Müllerian anomalies was clustered in watershed areas along the Kanawha River in West Virginia that have been designated as EPA FRS Sites and Superfund Sites.
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Affiliation(s)
- Burk Schaible
- Charleston Area Medical Center Women and Children's Hospital, 800 Pennsylvania Ave, Charleston, WV, 25302, United States.
| | - Frank Annie
- Charleston Area Medical Center Health Education and Research Institute, 3211 McCorkle Ave, SE Charleston, WV, 25304, United States.
| | - Dara Seybold
- Charleston Area Medical Center Health Education and Research Institute, 3211 McCorkle Ave, SE Charleston, WV, 25304, United States.
| | - Byron C Calhoun
- West Virginia University/Charleston Area Medical Center Women and Children's Hospital, 800 Pennsylvania Ave, Charleston, WV, 25302, United States.
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49
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Kim S, Oancea SC. Electronic cigarettes may not be a "safer alternative" of conventional cigarettes during pregnancy: evidence from the nationally representative PRAMS data. BMC Pregnancy Childbirth 2020; 20:557. [PMID: 32967660 PMCID: PMC7510270 DOI: 10.1186/s12884-020-03247-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 09/14/2020] [Indexed: 12/16/2022] Open
Abstract
Background Conventional cigarette (CC) smoking is one of the most preventable causes of adverse birth outcomes. Although electronic cigarettes (ECs) are considered to be safer than CCs during pregnancy, the evidence is yet to be presented. This study examines the effects of prenatal EC use on neonatal birth outcomes compared to those of CC smokers and complete tobacco abstainers. Methods Data was extracted from 55,251 pregnant women who participated in the Phase 8 survey of the Pregnancy Risk Assessment Monitoring System between 2016 and 2018. Participants were classified into three groups based on their smoking behaviors in the third trimester: complete tobacco abstinence, exclusive CC smoking, or exclusive EC use. Adverse outcomes included infants being small-for-gestational-age (SGA), having low birthweight (LBW), and being born at preterm. EC users were matched to complete abstainers and CC smokers who share the same baseline characteristics in race/ethnicity, age, educational attainment, income, prenatal care adequacy, and first- and second-trimester CC smoking statuses. The association between EC use and adverse birth outcomes were examined by survey-weighted logistic regression analyses in the matched population. Results Among participants, 1.0% of women reported having used ECs during the third trimester, 60% of which reported using ECs exclusively. Neonates of EC users were significantly more likely to be SGA (OR 1.76; 95% CI 1.04, 2.96), have LBW (OR 1.53; 95% CI 1.06, 2.22), or be born preterm (OR 1.86; 95% CI 1.11, 3.12) compared to tobacco abstainers. However, odds of EC users’ pregnancies resulting in SGA (OR 0.67; 95% CI 0.30, 1.47), LBW (OR 0.71; 95% CI 0.37, 1.37), or preterm birth (OR 1.06; 95% CI 0.46, 2.48) were not significantly lower than those of CC smokers. Conclusions Even after accounting for shared risk factors between prenatal tobacco use and adverse birth outcomes, EC use remains an independent risk factor for neonatal complications and is not a safer alternative to CC smoking during pregnancy. Until further research is completed, all pregnant women are encouraged to abstain from all tobacco products including ECs.
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Affiliation(s)
- Sooyong Kim
- Behavioral Sciences Group, Sanford Research, 2301 East 60th St N, Sioux Falls, SD, 57104, USA. .,Present address: Pinney Associates, Inc, 201 North Craig Street, Suite 320, Pittsburgh, PA, 15213, USA.
| | - Sanda Cristina Oancea
- Department of Population Health , University of North Dakota School of Medicine & Health Sciences, Grand Forks , ND, 58202, USA
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50
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Rima M, Lattouf Y, Abi Younes M, Bullier E, Legendre P, Mangin JM, Hong E. Dynamic regulation of the cholinergic system in the spinal central nervous system. Sci Rep 2020; 10:15338. [PMID: 32948826 DOI: 10.1038/s41598-020-72524-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 08/18/2020] [Indexed: 11/22/2022] Open
Abstract
While the role of cholinergic neurotransmission from motoneurons is well established during neuromuscular development, whether it regulates central nervous system development in the spinal cord is unclear. Zebrafish presents a powerful model to investigate how the cholinergic system is set up and evolves during neural circuit formation. In this study, we carried out a detailed spatiotemporal analysis of the cholinergic system in embryonic and larval zebrafish. In 1-day-old embryos, we show that spinal motoneurons express presynaptic cholinergic genes including choline acetyltransferase (chata), vesicular acetylcholine transporters (vachta, vachtb), high-affinity choline transporter (hacta) and acetylcholinesterase (ache), while nicotinic acetylcholine receptor (nAChR) subunits are mainly expressed in interneurons. However, in 3-day-old embryos, we found an unexpected decrease in presynaptic cholinergic transcript expression in a rostral to caudal gradient in the spinal cord, which continued during development. On the contrary, nAChR subunits remained highly expressed throughout the spinal cord. We found that protein and enzymatic activities of presynaptic cholinergic genes were also reduced in the rostral spinal cord. Our work demonstrating that cholinergic genes are initially expressed in the embryonic spinal cord, which is dynamically downregulated during development suggests that cholinergic signaling may play a pivotal role during the formation of intra-spinal locomotor circuit.
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