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Kuo-Esser L, Chen R, Lawson K, Kuchinski K, Simmons N, Dominguez M, Scandura T, Vo M, Dasenbrock-Gammon E, Hagan N, Esposito H, Thompson M, Le S, Escorcia W, Wetzel HN. Early-life caffeine exposure induces morphological changes and altered physiology in Caenorhabditiselegans. Biochem Biophys Res Commun 2024; 690:149240. [PMID: 37988878 DOI: 10.1016/j.bbrc.2023.149240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023]
Abstract
Caffeine, a widely consumed stimulant, is known for its effects on alertness and fatigue reduction by blockade of adenosine receptors. While it holds therapeutic potential, its diverse impacts pose risks, particularly in early development. This study explores the developmental effects of caffeine exposure using Caenorhabditis elegans (C. elegans) as a model organism. We investigated morphological and behavioral changes induced by caffeine exposure at the L1 stage and assessed their impact at the L4 stage, which roughly corresponds to human infancy and adolescence, respectively. Caffeine-exposed worms displayed increased body length, body bends, and pharyngeal pumping rates compared to control worms. These findings indicate heightened food-seeking behavior and greater food intake, leading to the observed morphological changes. While caffeine did not affect other locomotor behaviors, its stimulatory effect on growth and development highlights its significance. This study provides insights into the potential impact of early-life caffeine exposure on long-term health and development, offering a foundation for future research in vertebrates to uncover its implications on metabolism and other metrics of health.
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Affiliation(s)
- Lance Kuo-Esser
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA
| | - Ramon Chen
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA
| | - Kylie Lawson
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA
| | | | - Nijah Simmons
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA
| | | | - Tommy Scandura
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA
| | - Martin Vo
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA; Lake Erie College of Osteopathic Medicine, Lake Erie, Pennsylvania, 16509, USA
| | - Emma Dasenbrock-Gammon
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA; University of Kentucky College of Medicine, Highland Heights, Kentucky, 41099, USA
| | - Natalie Hagan
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA; University of Kentucky College of Medicine, Highland Heights, Kentucky, 41099, USA
| | - Haley Esposito
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA
| | - Molly Thompson
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA
| | - Steven Le
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA
| | - Wilber Escorcia
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA.
| | - Hanna N Wetzel
- Biology Department, Xavier University, Cincinnati, OH, 45207, USA.
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Atiba FA, Popoola OA, Odukogbe AA, Ihunwo AO. Prevalence and consumption pattern of kolanut among pregnant women in Ibadan metropolis. Sci Rep 2023; 13:14422. [PMID: 37660226 PMCID: PMC10475128 DOI: 10.1038/s41598-023-41754-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/31/2023] [Indexed: 09/04/2023] Open
Abstract
Kolanut contains caffeine and it is widely consumed in various social contexts in Nigeria and other Sub-Saharan African countries. While some studies have suggested that kolanut is consumed by pregnant women, there is a dearth of information on the prevalence, consumption pattern and reasons for kolanut consumption among this group. This study investigated kolanut use among pregnant women in Ibadan, Oyo State, Nigeria. A cross-sectional study involving 478 consenting pregnant women in all trimesters of pregnancy was conducted. Semi-structured questionnaires were used to collect data. Associations between kolanut use and respondent characteristics were investigated using the chi-square test and logistic regression analysis. The mean age of the women was 28.7 ± 6.3 years. One hundred and sixty-two (33.9%) of women reported kolanut use during pregnancy, 140 (29.3%) in the current pregnancy. Fifty-five (39.3%) pregnant women reported frequent use and 46 (32.9%) used it in high quantities. Significant associations were found between current kolanut use and Hausa respondents (p = 0.014), educational level; secondary (p = 0.032), tertiary (p = 0.006), TBA (p = 0.005). The majority (93.7%) used kolanut to prevent spitting, nausea, and vomiting. This study showed that kolanut use is quite common among pregnant women and frequently used in large quantities.
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Affiliation(s)
- F A Atiba
- Department of Anatomy, College of Medicine, University of Ibadan, Ibadan, Nigeria.
- School of Anatomical Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - O A Popoola
- Departrment of Community Medicine, University of Ibadan/University College Hospital, Ibadan, Nigeria
| | - A A Odukogbe
- Department of Obstetrics and Gynecology College of Medicine, University of Ibadan/University College Hospital, Ibadan, Nigeria
| | - A O Ihunwo
- School of Anatomical Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Miranda AR, Cortez MV, Scotta AV, Soria EA. Caffeinated non-alcoholic beverages on the postpartum mental health related to the COVID-19 pandemic by a cross-sectional study in Argentina. HUMAN NUTRITION & METABOLISM 2023; 33:200198. [PMID: 38620109 PMCID: PMC10250059 DOI: 10.1016/j.hnm.2023.200198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/02/2023] [Accepted: 05/31/2023] [Indexed: 04/17/2024]
Abstract
Purpose This work aimed to study postpartum mental outcomes and determinants of the intake of caffeinated beverages during the pandemic in women from Argentina. Methods This cross-sectional study recruited 619 women who responded to online self-report questionnaires during the first and second waves of COVID-19, including validated instruments (Insomnia Severity Index, Perceived Stress Scale, Postpartum Depression Screening Scale, Memory Complaint Scale, and Breastfeeding Self-Efficacy Scale), and general data. Intake frequency and amount of caffeinated beverages were estimated. Multivariate regression and structural equation models identified associations and effects (p < 0.05). Results Women were under social restrictions for 60.39 days, with home and essential activities increasing caffeinated intake. They ingested (mL/d): yerba mate (1457.71), coffee (66.85), tea (67.61), and soft drinks (50.95), which provided 646.20 mg/d of caffeine. Intakes of coffee and yerba mate were higher than pre-pandemic ones. Coffee was positively associated with stress and insomnia, and indirectly linked to higher levels of depression and memory complaints, and lower breastfeeding self-efficacy. Tea showed a similar but weaker association. Yerba mate correlated inversely with depression (through direct pathways), insomnia, and memory complaints (through indirect pathways), promoting breastfeeding self-efficacy. Soft drinks and caffeine did not present significant associations. Conclusion Although findings do not imply causation, results suggest that beverages would exhibit caffeine-independent affective and cognitive roles, which might be anxiogenic in the case of coffee and tea (to a lesser extent). Yerba mate showed antidepressant potential. Given that breastfeeding might be compromised during the pandemic, yerba mate intake is promissory to protect postpartum mental health.
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Affiliation(s)
- Agustín Ramiro Miranda
- Montpellier Interdisciplinary Center on Sustainable Agri-food Systems (MoISA), University of Montpellier, CIRAD, CIHEAM-IAMM, INRAE, Institut Agro, IRD, 911 Avenue d'Agropolis, Cedex 5, 34394, Montpellier, France
| | - Mariela Valentina Cortez
- Universidad Nacional de Córdoba, Facultad de Ciencias Médicas, Bv. de la Reforma, Ciudad Universitaria, 5014, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, INICSA, Bv. de la Reforma, Ciudad Universitaria, 5014, Córdoba, Argentina
| | - Ana Veronica Scotta
- Universidad Nacional de Córdoba, Facultad de Ciencias Médicas, Bv. de la Reforma, Ciudad Universitaria, 5014, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, INICSA, Bv. de la Reforma, Ciudad Universitaria, 5014, Córdoba, Argentina
| | - Elio Andrés Soria
- Universidad Nacional de Córdoba, Facultad de Ciencias Médicas, Bv. de la Reforma, Ciudad Universitaria, 5014, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, INICSA, Bv. de la Reforma, Ciudad Universitaria, 5014, Córdoba, Argentina
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Yong L, Song Y, Xiao X, Sui H, Xu H, Tan R, Yang X, Song J, Li J, Wei S. Quantitative probabilistic assessment of caffeine intake from tea in Chinese adult consumers based on nationwide caffeine content determination and tea consumption survey. Food Chem Toxicol 2022; 165:113102. [PMID: 35513285 DOI: 10.1016/j.fct.2022.113102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/24/2022] [Accepted: 04/28/2022] [Indexed: 10/18/2022]
Abstract
Caffeine has known effects on the central nervous and cardiovascular systems. An intake up to 400 mg/day does not give rise to health concerns. Tea, a major source of caffeine, is highly consumed in China. However, the potential health risk of caffeine from tea has not been well evaluated. The present study assessed caffeine intake levels from tea for Chinese adult consumers. We collected 1,398 samples of green, black, dark, jasmine, oolong, white, and yellow tea from 17 provinces. The caffeine content was determined by HPLC. The average contents were 27 (oolong tea) - 43 (yellow tea) mg/g. The leaching rate of caffeine into the water was about 100%. Tea consumption data were from the National Beverage Consumption Survey 2013-2014. Monte Carlo simulations were applied to estimate the distribution of caffeine intake. The average caffeine intake from tea was 180 mg/day of all consumers. Green, dark, and black tea were the primary sources. Males (197 mg/day) consumed more caffeine than females (136 mg/day) on average, but females older than 71 years had the highest intake level (259 mg/day) among all subgroups. Over 90% of Chinese adult tea drinkers have caffeine intake under 400 mg/day.
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Affiliation(s)
- Ling Yong
- Department of Epidemiology and Biostatistics, Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China; Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Yan Song
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Xiao Xiao
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Haixia Sui
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Haibin Xu
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Rong Tan
- Hangzhou Tea Research Institute, China coop, Zhejiang Key Laboratory of Transboundary Applied Technology for Tea Recourses, Hangzhou, 310018, China
| | - Xiufang Yang
- Hangzhou Tea Research Institute, China coop, Zhejiang Key Laboratory of Transboundary Applied Technology for Tea Recourses, Hangzhou, 310018, China
| | - Jian Song
- Food and Nutrition Institute, Shandong Center for Disease Control and Prevention, Jinan, 250000, China
| | - Jianwen Li
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Sheng Wei
- Department of Epidemiology and Biostatistics, Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
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Dammann O, Dörk T, Hillemanns P, Reydon T. Causation and causal inference in obstetrics-gynecology. Am J Obstet Gynecol 2022; 226:12-23. [PMID: 34991897 DOI: 10.1016/j.ajog.2021.09.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/22/2021] [Accepted: 09/16/2021] [Indexed: 11/16/2022]
Abstract
Causation and causal inference are of utmost importance in obstetrics and gynecology. In many clinical situations, causal reasoning is involved in etiological explanations, diagnostic considerations, and conversations about prognosis. In this paper, we offer an overview of the philosophical accounts of causation that may not be familiar to, but still be appreciated by, the busy clinician. In our discussion, we do not try to simplify what is a rather complex range of ideas. We begin with an introduction to some important basic ideas, followed by 2 sections on the metaphysical and epistemological aspects of causality, which offer a more detailed discussion of some of its specific philosophical facets, using examples from obstetrical and gynecologic research and practice along the way. We hope our discussion will help deepen the thinking and discourse about causation and causal inference in gynecology and obstetrics.
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Affiliation(s)
- Olaf Dammann
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA; Department of Gynecology and Obstetrics, Hannover Medical School, Hannover, Germany.
| | - Thilo Dörk
- Department of Gynecology and Obstetrics, Hannover Medical School, Hannover, Germany
| | - Peter Hillemanns
- Department of Gynecology and Obstetrics, Hannover Medical School, Hannover, Germany
| | - Thomas Reydon
- Institute of Philosophy, Leibniz University Hannover, Hannover, Germany; Centre for Ethics and Law in the Life Sciences, Leibniz University Hannover, Hannover, Germany; Socially Engaged Philosophy of Science Group, Michigan State University, East Lansing, MI; Center for Interdisciplinarity, Michigan State University, East Lansing, MI
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