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      Problemática nutricional en fumadores y fumadores pasivos Translated title: Nutritional problems in smokers and passive smokers

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          Abstract

          Resumen Objetivos: el consumo de tabaco, activo o pasivo, afecta a un elevado porcentaje de individuos y se asocia a diversos riesgos sanitarios. Profundizar en los problemas nutricionales específicos de los fumadores que pueden contribuir a perjudicar su salud constituye el objeto de la presente revisión. Métodos: búsqueda bibliográfica en relación con el tema. Resultados: los fumadores consumen cantidades inferiores de diversos alimentos, especialmente: frutas, verduras, cereales y lácteos. Como consecuencia, su ingesta de vitaminas, minerales y fitoquímicos es inferior a la observada en los no fumadores. Su consumo de carne, cafeína y alcohol suele ser superior y su actividad inferior a la de los no fumadores, coexistiendo en los fumadores conductas poco saludables que se potencian, perjudicando la salud y la calidad de vida del colectivo. El estrés oxidativo y los cambios metabólicos hacen que las necesidades de algunos nutrientes sean superiores en los fumadores para lograr la misma situación bioquímica que en los no fumadores. Las ingestas recomendadas de vitamina C se han incrementado, pero probablemente sea necesario aumentar las de otros nutrientes. En general, los fumadores sufren deficiencias con más frecuencia (vitaminas C, E, β-caroteno, B1, B2, B12, ácido fólico, calcio, magnesio, hierro, yodo, etc.) que los no fumadores. Los fumadores pasivos se ven afectados también en sus hábitos alimentarios y su situación nutricional. Conclusiones: la peor situación nutricional de los fumadores puede contribuir a la aparición/el empeoramiento de diversas patologías asociadas al hábito de fumar (cardiovasculares, cáncer, cataratas, osteoporosis, etc.), por lo que la vigilancia nutricional y la corrección de las deficiencias nutricionales podrían suponer un beneficio sanitario para los fumadores y fumadores pasivos que debe ser considerada en el futuro.

          Translated abstract

          Abstract Objective: active or passive tobacco use affects a high percentage of individuals and is associated with various health risks. The aim of this review was to look more closely at the nutritional problems that are specific of smokers, which may harm their health. Methods: a bibliographic search related to the topic. Results: smokers consume lower amounts of various foods, especially fruits, vegetables, cereals and dairy. As a result, their intake of vitamins, minerals, and phytochemicals is lower than that observed in non-smokers. Their consumption of meat, caffeine and alcohol is usually higher, and their activity lower than those of non-smokers, coexisting in smokers unhealthy behaviors that contribute to harming their health and quality of life. Oxidative stress and metabolic changes render the needs for some nutrients higher in smokers to achieve the same biochemical situation as in non-smokers. Recommended intakes of vitamin C have increased, but it will probably be necessary to also increase the intakes of other nutrients. In general, smokers suffer from deficiencies more frequently (vitamins C, E, β-carotene, B1, B2, B12, folic acid, calcium, magnesium, iron, iodine, etc.) than non-smokers. Passive smokers are also affected in their eating habits and nutritional status. Conclusions: the worse nutritional status of smokers can contribute to the appearance/worsening of various diseases associated with smoking (cardiovascular, cancer, cataracts, osteoporosis, etc.); therefore, nutritional surveillance and correction of nutritional deficiencies could represents health benefits for smokers and passive smokers, which should be considered in the future.

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          A systematic review of maternal smoking during pregnancy and fetal measurements with meta-analysis

          Background Maternal smoking during pregnancy is linked to reduced birth weight but the gestation at onset of this relationship is not certain. We present a systematic review of the literature describing associations between maternal smoking during pregnancy and ultrasound measurements of fetal size, together with an accompanying meta-analysis. Methods Studies were selected from electronic databases (OVID, EMBASE and Google Scholar) that examined associations between maternal smoking or smoke exposure and antenatal fetal ultrasound measurements. Outcome measures were first, second or third trimester fetal measurements. Results There were 284 abstracts identified, 16 papers were included in the review and the meta-analysis included data from eight populations. Maternal smoking was associated with reduced second trimester head size (mean reduction 0.09 standard deviation (SD) [95% CI 0.01, 0.16]) and femur length (0.06 [0.01, 0.10]) and reduced third trimester head size (0.18 SD [0.13, 0.23]), femur length (0.27 SD [0.21, 0.32]) and estimated fetal weight (0.18 SD [0.11, 0.24]). Higher maternal cigarette consumption was associated with a lower z score for head size in the second (mean difference 0.09 SD [0, 0.19]) and third (0.15 SD [0.03, 0.26]) trimesters compared to lower consumption. Fetal measurements were not reduced for those whose mothers quit before or after becoming pregnant compared to mothers who had never smoked. Conclusions Maternal smoking during pregnancy is associated with reduced fetal measurements after the first trimester, particularly reduced head size and femur length. These effects may be attenuated if mothers quit or reduce cigarette consumption during pregnancy.
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            Air pollution, environmental chemicals, and smoking may trigger vitamin D deficiency: Evidence and potential mechanisms

            Beyond vitamin D (VD) effect on bone homeostasis, numerous physiological functions in human health have been described for this versatile prohormone. In 2016, 95% of the world's population lived in areas where annual mean ambient particulate matter (<2.5 μm) levels exceeded the World Health Organization guideline value (Shaddick et al., 2018). On the other hand, industries disperse thousands of chemicals continually into the environment. Further, considerable fraction of populations are exposed to tobacco smoke. All of these may disrupt biochemical pathways and cause detrimental consequences, such as VD deficiency (VDD). In spite of the remarkable number of studies conducted on the role of some of the above mentioned exposures on VDD, the literature suffers from two main shortcomings: (1) an overview of the impacts of environmental exposures on the levels of main VD metabolites, and (2) credible engaged mechanisms in VDD because of those exposures. To summarize explanations for these unclear topics, we conducted the present review, using relevant keywords in the PubMed database, to investigate the adverse effects of exposure to air pollution, some environmental chemicals, and smoking on the VD metabolism, and incorporate relevant potential pathways disrupting VD endocrine system (VDES) leading to VDD. Air pollution may lead to the reduction of VD cutaneous production either directly by blocking ultraviolet B photons or indirectly by decreasing outdoor activity. Heavy metals may reduce VD serum levels by increasing renal tubular dysfunction, as well as downregulating the transcription of cytochrome P450 mixed-function oxidases (CYPs). Endocrine-disrupting chemicals (EDCs) may inhibit the activity and expression of CYPs, and indirectly cause VDD through weight gain and dysregulation of thyroid hormone, parathyroid hormone, and calcium homeostasis. Smoking through several pathways decreases serum 25(OH)D and 1,25(OH)2D levels, VD intake from diet, and the cutaneous production of VD through skin aging. In summary, disturbance in the cutaneous production of cholecalciferol, decreased intestinal intake of VD, the modulation of genes involved in VD homeostasis, and decreased local production of calcitriol in target tissues are the most likely mechanisms that involve in decreasing the serum VD levels.
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              The association between environmental tobacco smoke exposure and childhood respiratory disease: a review

              ABSTRACT Introduction: Childhood respiratory illness is a major cause of morbidity and mortality particularly in low and middle-income countries. Environmental tobacco smoke (ETS) exposure is a recognised risk factor for both acute and chronic respiratory illness. Areas covered: The aim of this paper was to review the epidemiology of ETS exposure and impact on respiratory health in children. We conducted a search of 3 electronic databases of publications on ETS and childhood respiratory illness from 1990–2015. Key findings were that up to 70% of children are exposed to ETS globally, but under-reporting may mask the true prevalence. Maternal smoking and ETS exposure influence infant lung development and are associated with childhood upper and lower respiratory tract infection, wheezing or asthma. Further, exposure to ETS is associated with more severe respiratory disease. ETS exposure reduces lung function early in life, establishing an increased lifelong risk of poor lung health. Expert commentary: Urgent and effective strategies are needed to decrease ETS exposure in young children to improve child and long-term lung health in adults especially in low and middle income countries where ETS exposure is increasing.
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                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                2021
                : 38
                : spe2
                : 31-34
                Affiliations
                [3] Madrid orgnameHospital San Rafael orgdiv1Unidad de Gastroenterología Pediátrica España
                [4] Cuenca orgnameUniversidad de Castilla-La Mancha orgdiv1Facultad de Enfermería orgdiv2Departamento de Enfermería, Fisioterapia y Terapia Ocupacional Ecuador
                [2] Madrid Madrid orgnameUniversidad Complutense de Madrid orgdiv1Grupo de investigación VALORNUT-UCM (920030) Spain
                [1] Madrid Madrid orgnameUniversidad Complutense de Madrid orgdiv1Facultad de Farmacia orgdiv2Departamento de Nutrición y Ciencia de los Alimentos Spain
                Article
                S0212-16112021000500008 S0212-1611(21)03800200008
                10.20960/nh.3794
                767f334b-7aa8-41ac-a99f-d7b05b305d6d

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 26, Pages: 4
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                SciELO Spain

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                Health risks,Metabolic changes,Eating habits,Oxidative stress,Intake,Passive smoker,Smoker,Riesgos sanitarios,Cambios metabólicos,Hábitos alimentarios,Estrés oxidativo,Ingesta,Fumador pasivo,Fumador

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