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Herman RJ, Schmidt HD. Targeting GLP-1 receptors to reduce nicotine use disorder: Preclinical and clinical evidence. Physiol Behav 2024; 281:114565. [PMID: 38663460 DOI: 10.1016/j.physbeh.2024.114565] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 04/30/2024]
Abstract
Nicotine use disorder (NUD) remains a leading cause of preventable death in the U.S. Unfortunately, current FDA-approved pharmacotherapies for smoking cessation have limited efficacy and are associated with high rates of relapse. One major barrier to long-term smoking abstinence is body weight gain during withdrawal. Nicotine withdrawal-induced body weight gain can also lead to development of chronic disease states like obesity and type II diabetes mellitus. Therefore, it is critical to identify novel pharmacotherapies for NUD that decrease relapse and nicotine withdrawal symptoms including body weight gain. Recent studies demonstrate that glucagon-like peptide-1 receptor (GLP-1R) agonists attenuate voluntary nicotine taking and seeking and prevent withdrawal-induced hyperphagia and body weight gain. Emerging evidence also suggests that GLP-1R agonists improve cognitive deficits, as well as depressive- and anxiety-like behaviors, which contribute to smoking relapse during withdrawal. While further studies are necessary to fully characterize the effects of GLP-1R agonists on NUD and understand the mechanisms by which GLP-1R agonists decrease nicotine withdrawal-mediated behaviors, the current literature supports GLP-1R-based approaches to treating NUD.
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Affiliation(s)
- Rae J Herman
- Neuroscience Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Heath D Schmidt
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA, United States; Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
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Lüthi H, Lengsfeld S, Burkard T, Meienberg A, Jeanloz N, Vukajlovic T, Bologna K, Steinmetz M, Bathelt C, Sailer CO, Laager M, Vogt DR, Hemkens LG, Speich B, Urwyler SA, Kühne J, Baur F, Lutz LN, Erlanger TE, Christ-Crain M, Winzeler B. Effect of dulaglutide in promoting abstinence during smoking cessation: 12-month follow-up of a single-centre, randomised, double-blind, placebo-controlled, parallel group trial. EClinicalMedicine 2024; 68:102429. [PMID: 38371479 PMCID: PMC10873660 DOI: 10.1016/j.eclinm.2024.102429] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 02/20/2024] Open
Abstract
Background Smoking cessation is challenging, despite making use of established smoking cessation therapies. Preclinical studies and one clinical pilot study suggest the antidiabetic drug glucagon-like peptide-1 (GLP-1) analogue to modulate addictive behaviours and nicotine craving. Previously, we reported the short-term results of a randomised, double-blind, placebo-controlled trial. Herein we report long-term abstinence rates and weight developments after 24 and 52 weeks. Methods This single-centre, randomised, double-blind, placebo-controlled, parallel group trial was done at the University Hospital Basel in Switzerland. We randomly assigned (1:1) individuals with at least a moderate nicotine dependence willing to quit smoking to either a 12-week treatment with dulaglutide 1.5 mg or placebo subcutaneously once weekly in addition to standard of care smoking cessation therapy (varenicline 2 mg/day and behavioural counselling). After 12 weeks, dulaglutide or placebo injections were discontinued and the participants were followed up at week 24 and 52. The primary outcome of self-reported and biochemically confirmed point prevalence abstinence rate, and secondary outcome of secondary outcome of weight change were assessed at weeks 24 and 52. All participants who received one dose of the study drug were included in the intention to treat set and participants who received at least 10/12 doses of the study drug formed the per protocol set. The trial was registered at ClinicalTrials.gov, NCT03204396. Findings Of the 255 participants who were randomly assigned between June 22, 2017 and December 3, 2020, 63% (80/127) (dulaglutide group) and 65% (83/128) (placebo group) were abstinent after 12 weeks. These abstinence rates declined to 43% (54/127) and 41% (52/128), respectively, after 24 weeks and to 32% (41/127) and 32% (41/128), respectively, after 52 weeks. Post-cessation weight gain was prevented in the dulaglutide group (-1.0 kg, standard deviation [SD] 2.7) as opposed to the placebo group (+1.9 kg, SD 2.4) after 12 weeks. However, at week 24, increases in weight from baseline were observed in both groups (median, interquartile range [IQR]: dulaglutide: +1.5 kg, [-0.4, 4.1], placebo: +3.0 kg, [0.6, 4.6], baseline-adjusted difference in weight change -1.0 kg (97.5% CI [-2.16, 0.16])), and at week 52 the groups showed similar weight gain (median, IQR: dulaglutide: +2.8 kg [-0.4, 4.7], placebo: +3.1 kg [-0.4, 6.0], baseline-adjusted difference in weight change: -0.35 kg (95% CI [-1.72, 1.01])). In the follow-up period (week 12 to week 52) 51 (51%) and 48 (48%) treatment-unrelated adverse events were recorded in the dulaglutide and the placebo group, respectively. No treatment-related serious adverse events or deaths occurred. Interpretation Dulaglutide does not improve long-term smoking abstinence, but has potential to counteract weight gain after quitting. However, 3 months of treatment did not have a sustained beneficial effect on weight at 1 year. As post-cessation weight gain is highest in the first year after quitting smoking, future studies should consider a longer treatment duration with a GLP-1 analogue in abstinent individuals. Funding Swiss National Science Foundation, the Gottfried and Julia Bangerter-Rhyner Foundation, the Goldschmidt-Jacobson Foundation, the Hemmi-Foundation, the University of Basel, the Swiss Academy of Medical Sciences.
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Affiliation(s)
- Hualin Lüthi
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Sophia Lengsfeld
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Thilo Burkard
- Medical Outpatient Department, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
- Department of Cardiology, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
| | - Andrea Meienberg
- Medical Outpatient Department, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
- Faculty of Medicine University of Basel, Basel, Switzerland
| | - Nica Jeanloz
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Tanja Vukajlovic
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Katja Bologna
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Michelle Steinmetz
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Cemile Bathelt
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Clara O. Sailer
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Mirjam Laager
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Deborah R. Vogt
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Lars G. Hemkens
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
- Meta-Research Innovation Center at Stanford (METRICS), Stanford University, Stanford, CA, USA
- Meta-Research Innovation Center Berlin (METRIC-B), Berlin Institute of Health, Berlin, Germany
- Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel, University of Basel, Basel, Switzerland
| | - Benjamin Speich
- CLEAR Methods Center, Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Sandrine A. Urwyler
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Jill Kühne
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Fabienne Baur
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Linda N. Lutz
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Tobias E. Erlanger
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Mirjam Christ-Crain
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Bettina Winzeler
- Department of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
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Alqarni AA, Badr OI, Aldhahir AM, Alqahtani JS, Siraj RA, Naser AY, Alghamdi AS, Majrshi M, Alghamdi SM, Alyami MM, Alghamdi SA, Alwafi H. Obesity Prevalence and Association with Spirometry Profiles, ICU Admission, and Comorbidities Among Patients with COPD: Retrospective Study in Two Tertiary Centres in Saudi Arabia. Int J Chron Obstruct Pulmon Dis 2024; 19:111-120. [PMID: 38249824 PMCID: PMC10799648 DOI: 10.2147/copd.s442851] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/04/2024] [Indexed: 01/23/2024] Open
Abstract
Background Obesity is common among chronic obstructive pulmonary disease (COPD) patients and is associated with an increase in acute exacerbation episodes. However, data on obesity's impact on and association with clinical outcomes among patients with COPD are limited. This study aimed to determine overweight and obesity prevalence and associations with spirometry profiles, intensive care unit (ICU) admission, and comorbidities in patients with COPD. Methods In this retrospective cohort study, we reviewed the electronic health records of adult individuals diagnosed with COPD who visited the studied pulmonary clinics between 1 January 2018 and 31 December 2022 and then collected key demographic variables and relevant clinical outcomes and comorbidities. Results A total of 474 patients with COPD were included in the final analysis, of whom 60% were male. The occurrences of overweight and obesity were 32.7% and 38.2%, respectively. The presence of comorbidities was high in obese patients (78.4%), followed by overweight patients (63.8%) with COPD. Obese and overweight patients had the highest ward admission rates (38.3% and 34.2%, respectively). ICU admissions were higher in obese and overweight patients (16% and 12%, respectively) compared with normal-weight patients (9%). Although no significant correlation was found between body mass index and spirometry parameters, comorbidities and ICU admission were linked to overweight and obesity in COPD patients (AOR: 1.82 95% CI: 1.15 to 2.86 and AOR: 3.34 95% CI 1.35 to 8.22, respectively). Conclusion Our findings imply that obesity in COPD is prevalent and is associated with adverse clinical outcomes including a greater number of comorbidities and higher rates of hospitalization and admission to ICUs although no associations were found between body weight and spirometry parameters. Further studies are needed to assess whether implementing and optimising obesity screening and management at an early stage in COPD can prevent further deterioration.
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Affiliation(s)
- Abdullah A Alqarni
- Department of Respiratory Therapy, Faculty of Medical Rehabilitation Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- Respiratory Therapy Unit, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Omaima I Badr
- Department of Chest Medicine, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Department of Pulmonary Medicine, Al Noor Specialist Hospital, Mecca, Saudi Arabia
| | - Abdulelah M Aldhahir
- Respiratory Therapy Department, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Jaber S Alqahtani
- Department of Respiratory Care, Prince Sultan Military College of Health Sciences, Dammam, Saudi Arabia
| | - Rayan A Siraj
- Department of Respiratory Care, College of Applied Medical Sciences, King Faisal University, Al Ahsa, Saudi Arabia
| | - Abdallah Y Naser
- Department of Applied Pharmaceutical Sciences and Clinical Pharmacy, Faculty of Pharmacy, Isra University, Amman, Jordan
| | - Abdulrhman S Alghamdi
- Department of Rehabilitation Science, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mansour Majrshi
- National Heart and Lung Institute, Imperial College London, London, UK
- Respiratory Medicine, Royal Brompton Hospital, London, UK
| | - Saeed M Alghamdi
- Clinical Technology Department, Respiratory Care Program, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mohammed M Alyami
- Respiratory Therapy Department, Batterjee Medical College, Khamis Mushait, Saudi Arabia
| | - Sara A Alghamdi
- Respiratory Care Department, AlSalama Hospital, Jeddah, Saudi Arabia
| | - Hassan Alwafi
- Department of Clinical Pharmacology and Toxicology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
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Baur F, Atila C, Lengsfeld S, Burkard T, Meienberg A, Bathelt C, Christ-Crain M, Winzeler B. Gender differences in weight gain during attempted and successful smoking cessation on dulaglutide treatment: a predefined secondary analysis of a randomised trial. BMJ Nutr Prev Health 2023; 6:301-309. [PMID: 38264360 PMCID: PMC10800263 DOI: 10.1136/bmjnph-2023-000781] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/01/2023] [Indexed: 01/25/2024] Open
Abstract
Background Women seem to have more difficulty quitting smoking than men. This is particularly concerning as smoking puts women at a higher risk of developing smoking-associated diseases. Greater concerns about postcessation weight gain in women have been postulated as a possible explanation. Methods Predefined secondary analysis of a placebo-controlled, double-blind, parallel-group, superiority randomised trial including 255 adults who smoke daily (155 women, 100 men). Participants received weekly dulaglutide (1.5 mg) or placebo (0.9% sodium chloride) in addition to standardised smoking cessation care (varenicline 2 mg/day plus behavioural counselling) over 12 weeks. We aimed to investigate gender differences in weight change after dulaglutide-assisted smoking cessation. Weight change between baseline and week 12 was analysed as absolute and revative weight change and as substantial weight gain (defined as >6% increase). Results No gender differences were observed in absolute or relative weight change neither on dulaglutide nor placebo treatment. However, substantial weight gain (defined as >6% increase) in the placebo group was almost five times more frequent in females than males (24% vs 5%). Female patients were less likely to have substantial weight gain on dulaglutide compared with placebo (1% (n=1/83) vs 24% (n=17/72); p<0.001), while this dulaglutide effect was less pronounced in males (0% (n=0/44) vs 5% (n=3/56); p=0.333). Conclusion Dulaglutide reduced postcessation weight gain in both genders and was very effective in preventing substantial weight gain, which seems to be a specific observation in females. Trial registration number NCT03204396.
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Affiliation(s)
- Fabienne Baur
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Cihan Atila
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Sophia Lengsfeld
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Thilo Burkard
- Medical Outpatient Department, University Hospital Basel, Basel, Switzerland
| | - Andrea Meienberg
- Medical Outpatient Department, University Hospital Basel, Basel, Switzerland
| | - Cemile Bathelt
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Mirjam Christ-Crain
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Bettina Winzeler
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
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Lengsfeld S, Burkard T, Meienberg A, Jeanloz N, Coynel D, Vogt DR, Hemkens LG, Speich B, Zanchi D, Erlanger TE, Christ-Crain M, Winzeler B. Glucagon-like peptide-1 analogues: a new way to quit smoking? (SKIP)-a structured summary of a study protocol for a randomized controlled study. Trials 2023; 24:284. [PMID: 37081574 PMCID: PMC10120253 DOI: 10.1186/s13063-023-07164-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 01/30/2022] [Accepted: 02/09/2023] [Indexed: 04/22/2023] Open
Abstract
BACKGROUND Cigarette smoking is the leading preventable cause of premature death. Despite dedicated programmes, quit rates remain low due to barriers such as nicotine withdrawal syndrome or post-cessation weight gain. Glucagon-like peptide-1 (GLP-1) analogues reduce energy intake and body weight and seem to modulate addictive behaviour. These GLP-1 properties are of major interest in the context of smoking cessation. The aim of this study is to evaluate the GLP-1 analogue dulaglutide as a new therapy for smoking cessation. METHODS This is a placebo-controlled, double-blind, parallel group, superiority, single-centre randomized study including 255 patients. The intervention consists of a 12-week dulaglutide treatment phase with 1.5 mg once weekly or placebo subcutaneously, in addition to standard of care (behavioural counselling and pharmacotherapy with varenicline). A 40-week non-treatment phase follows. The primary outcome is the point prevalence abstinence rate at week 12. Smoking status is self-reported and biochemically confirmed by end-expiratory exhaled carbon monoxide measurement. Further endpoints include post-cessational weight gain, nicotine craving analysis, glucose homeostasis and long-term nicotine abstinence. Two separate substudies assess behavioural, functional and structural changes by functional magnetic resonance imaging and measures of energy metabolism (i.e. resting energy expenditure, body composition). DISCUSSION Combining behavioural counselling and medical therapy, e.g. with varenicline, improves abstinence rates and is considered the standard of care. We expect a further increase in quit rates by adding a second component of medical therapy and assume a dual effect of dulaglutide treatment (blunting nicotine withdrawal symptoms and reducing post-cessational weight gain). This project is of high relevance as it explores novel treatment options aimed at preventing the disastrous consequences of nicotine consumption and obesity. TRIAL REGISTRATION ClinicalTrials.gov NCT03204396 . Registered on June 26, 2017.
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Affiliation(s)
- Sophia Lengsfeld
- Endocrinology, Diabetology and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
| | - Thilo Burkard
- Medical Outpatient Department, University Hospital Basel, Petersgraben 4, Basel, 4031, Switzerland
- Department of Cardiology, University Hospital Basel, Basel, Switzerland
| | - Andrea Meienberg
- Medical Outpatient Department, University Hospital Basel, Petersgraben 4, Basel, 4031, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Nica Jeanloz
- Endocrinology, Diabetology and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
| | - David Coynel
- Division of Cognitive Neuroscience, Department of Psychology and Transfaculty Research Platform, University of Basel, Basel, Switzerland
| | - Deborah R Vogt
- Endocrinology, Diabetology and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
- Department of Clinical Research, University of Basel and University Hospital of Basel, Basel, Switzerland
| | - Lars G Hemkens
- Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University of Basel and University Hospital of Basel, Basel, Switzerland
- Meta-Research Innovation Center at Stanford (METRICS), Stanford University, Stanford, CA, USA
- Meta-Research Innovation Center Berlin (METRIC-B), Berlin Institute of Health, Berlin, Germany
| | - Benjamin Speich
- Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University of Basel and University Hospital of Basel, Basel, Switzerland
| | - Davide Zanchi
- Roche Innovation Centre Basel, F. Hoffmann- La Roche, Basel, Switzerland
- Stanford University Graduate School of Business, Stanford, CA, USA
| | - Tobias E Erlanger
- Department of Clinical Research, University of Basel and University Hospital of Basel, Basel, Switzerland
| | - Mirjam Christ-Crain
- Endocrinology, Diabetology and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
| | - Bettina Winzeler
- Endocrinology, Diabetology and Metabolism, Department of Internal Medicine, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland.
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Tramunt B, Rouland A, Durlach V, Vergès B, Thomas D, Berlin I, Clair C. Smoking and diabetes: sex and gender aspects and their impact on vascular diseases. Can J Cardiol 2023:S0828-282X(23)00055-7. [PMID: 36702239 DOI: 10.1016/j.cjca.2023.01.018] [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] [Received: 07/09/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
Smoking and diabetes mellitus (DM) have been identified as two major cardiovascular risk factors for many years. In the field of cardiovascular diseases, considering sex differences, or gender differences, or both has become an essential element in moving toward equitable and quality healthcare. We reviewed the impact of sex or gender on the link between smoking and DM. The risk of type 2 DM (T2DM) due to smoking has been established in both sexes at the same level. As is the case in the general population, the prevalence of smoking in those with DM is higher in men than in women, although the decrease in smoking observed in recent years is more pronounced in men than in women. Regarding chronic DM complications, smoking is an independent risk factor for all-cause mortality, as well as macrovascular and microvascular complications, in both sexes. Nevertheless, in T2DM, the burden of smoking appears to be greater in women than in men for coronary heart disease morbidity, women having a 50% higher risk of fatal coronary event. Women are more dependent to nicotine, cumulate psychosocial barriers to quitting smoking, and are more likely to gain weight, which might make it more difficult for them to quit smoking. Smoking cessation advice and treatments should take into account gender differences to improve the success and long-term maintenance of abstinence in people with and without DM. This might include interventions that address emotions and stress in women or designed to reach specific populations of men.
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Driva S, Korkontzelou A, Tonstad S, Tentolouris N, Katsaounou P. The Effect of Smoking Cessation on Body Weight and Other Metabolic Parameters with Focus on People with Type 2 Diabetes Mellitus. Int J Environ Res Public Health 2022; 19:ijerph192013222. [PMID: 36293800 PMCID: PMC9603007 DOI: 10.3390/ijerph192013222] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 07/19/2022] [Revised: 09/24/2022] [Accepted: 10/07/2022] [Indexed: 06/01/2023]
Abstract
Smokers with diabetes mellitus substantially lower their risks of microvascular and macrovascular diabetic complications, in particular cardiovascular disease, by quitting smoking. However, subsequent post-smoking-cessation weight gain may attenuate some of the beneficial effects of smoking cessation and discourage attempts to quit. Weight gain can temporarily exacerbate diabetes and deteriorate glycemic control and metabolic profile. The molecular mechanisms by which quitting smoking leads to weight gain are largely associated with the removal of nicotine's effects on the central nervous system. This review addresses mechanisms of post-smoking-cessation weight gain, by reviewing the effects of nicotine on appetite, food intake, eating behaviour, energy expenditure, fat oxidation and appetite-regulating peptides. We also highlight correlations between post-cessation weight gain and risk of type 2 diabetes, consequences of weight gain in people with type 2 diabetes and the role of pharmacotherapies, which combine treatment of nicotine addiction and promotion of weight control.
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Affiliation(s)
- Stamatina Driva
- Diabetes Centre, First Department of Propaedeutic Internal Medicine, Medical School, Laiko General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Aliki Korkontzelou
- Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- First Department of Critical Care, Evangelismos General Hospital, National and Kapodistrian University of Athens, 10676 Athens, Greece
| | - Serena Tonstad
- Department of Preventive Cardiology, Oslo University Hospital, 0424 Oslo, Norway
| | - Nikolaos Tentolouris
- Diabetes Centre, First Department of Propaedeutic Internal Medicine, Medical School, Laiko General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Paraskevi Katsaounou
- First Department of Critical Care, Evangelismos General Hospital, National and Kapodistrian University of Athens, 10676 Athens, Greece
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Hartmann-Boyce J, Theodoulou A, Farley A, Hajek P, Lycett D, Jones LL, Kudlek L, Heath L, Hajizadeh A, Schenkels M, Aveyard P. Interventions for preventing weight gain after smoking cessation. Cochrane Database Syst Rev 2021; 10:CD006219. [PMID: 34611902 PMCID: PMC8493442 DOI: 10.1002/14651858.cd006219.pub4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Most people who stop smoking gain weight. This can discourage some people from making a quit attempt and risks offsetting some, but not all, of the health advantages of quitting. Interventions to prevent weight gain could improve health outcomes, but there is a concern that they may undermine quitting. OBJECTIVES To systematically review the effects of: (1) interventions targeting post-cessation weight gain on weight change and smoking cessation (referred to as 'Part 1') and (2) interventions designed to aid smoking cessation that plausibly affect post-cessation weight gain (referred to as 'Part 2'). SEARCH METHODS Part 1 - We searched the Cochrane Tobacco Addiction Group's Specialized Register and CENTRAL; latest search 16 October 2020. Part 2 - We searched included studies in the following 'parent' Cochrane reviews: nicotine replacement therapy (NRT), antidepressants, nicotine receptor partial agonists, e-cigarettes, and exercise interventions for smoking cessation published in Issue 10, 2020 of the Cochrane Library. We updated register searches for the review of nicotine receptor partial agonists. SELECTION CRITERIA Part 1 - trials of interventions that targeted post-cessation weight gain and had measured weight at any follow-up point or smoking cessation, or both, six or more months after quit day. Part 2 - trials included in the selected parent Cochrane reviews reporting weight change at any time point. DATA COLLECTION AND ANALYSIS Screening and data extraction followed standard Cochrane methods. Change in weight was expressed as difference in weight change from baseline to follow-up between trial arms and was reported only in people abstinent from smoking. Abstinence from smoking was expressed as a risk ratio (RR). Where appropriate, we performed meta-analysis using the inverse variance method for weight, and Mantel-Haenszel method for smoking. MAIN RESULTS Part 1: We include 37 completed studies; 21 are new to this update. We judged five studies to be at low risk of bias, 17 to be at unclear risk and the remainder at high risk. An intermittent very low calorie diet (VLCD) comprising full meal replacement provided free of charge and accompanied by intensive dietitian support significantly reduced weight gain at end of treatment compared with education on how to avoid weight gain (mean difference (MD) -3.70 kg, 95% confidence interval (CI) -4.82 to -2.58; 1 study, 121 participants), but there was no evidence of benefit at 12 months (MD -1.30 kg, 95% CI -3.49 to 0.89; 1 study, 62 participants). The VLCD increased the chances of abstinence at 12 months (RR 1.73, 95% CI 1.10 to 2.73; 1 study, 287 participants). However, a second study found that no-one completed the VLCD intervention or achieved abstinence. Interventions aimed at increasing acceptance of weight gain reported mixed effects at end of treatment, 6 months and 12 months with confidence intervals including both increases and decreases in weight gain compared with no advice or health education. Due to high heterogeneity, we did not combine the data. These interventions increased quit rates at 6 months (RR 1.42, 95% CI 1.03 to 1.96; 4 studies, 619 participants; I2 = 21%), but there was no evidence at 12 months (RR 1.25, 95% CI 0.76 to 2.06; 2 studies, 496 participants; I2 = 26%). Some pharmacological interventions tested for limiting post-cessation weight gain (PCWG) reduced weight gain at the end of treatment (dexfenfluramine, phenylpropanolamine, naltrexone). The effects of ephedrine and caffeine combined, lorcaserin, and chromium were too imprecise to give useful estimates of treatment effects. There was very low-certainty evidence that personalized weight management support reduced weight gain at end of treatment (MD -1.11 kg, 95% CI -1.93 to -0.29; 3 studies, 121 participants; I2 = 0%), but no evidence in the longer-term 12 months (MD -0.44 kg, 95% CI -2.34 to 1.46; 4 studies, 530 participants; I2 = 41%). There was low to very low-certainty evidence that detailed weight management education without personalized assessment, planning and feedback did not reduce weight gain and may have reduced smoking cessation rates (12 months: MD -0.21 kg, 95% CI -2.28 to 1.86; 2 studies, 61 participants; I2 = 0%; RR for smoking cessation 0.66, 95% CI 0.48 to 0.90; 2 studies, 522 participants; I2 = 0%). Part 2: We include 83 completed studies, 27 of which are new to this update. There was low certainty that exercise interventions led to minimal or no weight reduction compared with standard care at end of treatment (MD -0.25 kg, 95% CI -0.78 to 0.29; 4 studies, 404 participants; I2 = 0%). However, weight was reduced at 12 months (MD -2.07 kg, 95% CI -3.78 to -0.36; 3 studies, 182 participants; I2 = 0%). Both bupropion and fluoxetine limited weight gain at end of treatment (bupropion MD -1.01 kg, 95% CI -1.35 to -0.67; 10 studies, 1098 participants; I2 = 3%); (fluoxetine MD -1.01 kg, 95% CI -1.49 to -0.53; 2 studies, 144 participants; I2 = 38%; low- and very low-certainty evidence, respectively). There was no evidence of benefit at 12 months for bupropion, but estimates were imprecise (bupropion MD -0.26 kg, 95% CI -1.31 to 0.78; 7 studies, 471 participants; I2 = 0%). No studies of fluoxetine provided data at 12 months. There was moderate-certainty that NRT reduced weight at end of treatment (MD -0.52 kg, 95% CI -0.99 to -0.05; 21 studies, 2784 participants; I2 = 81%) and moderate-certainty that the effect may be similar at 12 months (MD -0.37 kg, 95% CI -0.86 to 0.11; 17 studies, 1463 participants; I2 = 0%), although the estimates are too imprecise to assess long-term benefit. There was mixed evidence of the effect of varenicline on weight, with high-certainty evidence that weight change was very modestly lower at the end of treatment (MD -0.23 kg, 95% CI -0.53 to 0.06; 14 studies, 2566 participants; I2 = 32%); a low-certainty estimate gave an imprecise estimate of higher weight at 12 months (MD 1.05 kg, 95% CI -0.58 to 2.69; 3 studies, 237 participants; I2 = 0%). AUTHORS' CONCLUSIONS Overall, there is no intervention for which there is moderate certainty of a clinically useful effect on long-term weight gain. There is also no moderate- or high-certainty evidence that interventions designed to limit weight gain reduce the chances of people achieving abstinence from smoking.
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Affiliation(s)
- Jamie Hartmann-Boyce
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Annika Theodoulou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Amanda Farley
- Public Health, Epidemiology and Biostatistics, University of Birmingham, Birmingham, UK
| | - Peter Hajek
- Wolfson Institute of Preventive Medicine, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Deborah Lycett
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| | - Laura L Jones
- Public Health, Epidemiology and Biostatistics, University of Birmingham, Birmingham, UK
| | - Laura Kudlek
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Laura Heath
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Anisa Hajizadeh
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | | | - Paul Aveyard
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
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Choi JW, Kim TH, Han E. Smoking Cessation, Weight Change, Diabetes, and Hypertension in Korean Adults. Am J Prev Med 2021; 60:205-212. [PMID: 33153837 DOI: 10.1016/j.amepre.2020.08.024] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/23/2020] [Accepted: 08/11/2020] [Indexed: 12/23/2022]
Abstract
INTRODUCTION This study investigates the association of smoking cessation and postcessation weight gain with the development of type 2 diabetes mellitus and hypertension. METHODS A total of 96,524 individuals without diabetes mellitus and hypertension aged ≥20 years between 2006 and 2008 were included, with follow-up until December 31, 2015. Smoking status and weight changes were monitored for 2 years. Hazard ratios and 95% CIs were calculated for the respective risks of the 2 conditions. Analyses were completed in 2020. RESULTS Compared with current smokers, the adjusted hazard ratios for the risk of type 2 diabetes and hypertension were 0.90 (95% CI=0.85, 0.96) and 1.00 (95% CI=0.95, 1.05) in recent quitters, 0.89 (95% CI=0.84, 0.95) and 0.92 (95% CI=0.88, 0.97) in long-term quitters, and 0.82 (95% CI=0.78, 0.86) and 0.92 (95% CI=0.89, 0.95) in never smokers. Compared with current smokers, the adjusted hazard ratios for the risk of type 2 diabetes and hypertension were 0.86 (95% CI=0.80, 0.93) and 0.98 (95% CI=0.92, 1.04) in recent quitters with no weight gain, 0.94 (95% CI=0.87, 1.03) and 1.00 (95% CI=0.94, 1.07) in those with 0.1-5 kg weight gain, 0.93 (95% CI=0.73, 1.19) and 1.14 (95% CI=0.96, 1.36) in those with 5.1-10 kg weight gain, and 1.49 (95% CI=0.84, 2.62) and 1.10 (95% CI=0.68, 1.77) in those with a weight gain of >10 kg. CONCLUSIONS Smoking cessation with no subsequent weight gain is associated with a reduced risk of developing type 2 diabetes. However, weight gain after smoking cessation attenuates the reduced risk of type 2 diabetes. The association between recent quitting and incident hypertension was nonsignificant, whereas long-term quitters had reduced risk of developing hypertension and type 2 diabetes.
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Affiliation(s)
- Jae Woo Choi
- Department of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, College of Pharmacy, Yonsei University, Incheon, South Korea
| | - Tae Hyun Kim
- Department of Hospital Administration, Graduate School of Public Health, Yonsei University, Seoul, South Korea
| | - Euna Han
- Department of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, College of Pharmacy, Yonsei University, Incheon, South Korea.
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10
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Tan MM, Bush T, Lovejoy JC, Javitz H, Torres AJ, Wassum K, Spring B. Race differences in predictors of weight gain among a community sample of smokers enrolled in a randomized controlled trial of a multiple behavior change intervention. Prev Med Rep 2021; 21:101303. [PMID: 33489726 DOI: 10.1016/j.pmedr.2020.101303] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 11/24/2020] [Accepted: 12/01/2020] [Indexed: 12/23/2022] Open
Abstract
African Americans have disproportionate rates of post-cessation weight gain compared to non-Hispanic whites, but few studies have examined this weight gain in a multiracial sample of smokers receiving evidence-based treatment in a community setting. We examined race differences in short-term weight gain during an intervention to foster smoking cessation plus weight management. Data were drawn from the Best Quit Study, a randomized controlled trial conducted via telephone quitlines across the U.S. from 2013 to 2017. The trial tested the effects on cessation and weight gain prevention of adding a weight control intervention either simultaneously with or sequentially after smoking cessation treatment. African Americans (n = 665) and whites (n = 1723) self-reported smoking status and weight during ten intervention calls. Random effects longitudinal modeling was used to examine predictors of weight change over the intervention period (average 16 weeks). There was a significant race × treatment effect; in the simultaneous group, weight increased for African Americans at a faster rate compared to whites (b = 0.302, SE = 0.129, p < 0.05), independent of smoking status, age, baseline obesity, and education. After stratifying the sample, the effect of treatment group differed by race. Education level attenuated the rate of weight gain for African Americans in the simultaneous group, but not for whites. African Americans receiving smoking and weight content simultaneously gained weight faster than whites in the same group; however, the weight gain was slower for African Americans with higher educational attainment. Future studies are needed to understand social factors associated with treatment receptivity that may influence weight among African American smokers.
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11
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Montanari C, Secci ME, Driskell A, McDonald KO, Schratz CL, Gilpin NW. Chronic nicotine increases alcohol self-administration in adult male Wistar rats. Psychopharmacology (Berl) 2021; 238:201-213. [PMID: 33000333 PMCID: PMC7796964 DOI: 10.1007/s00213-020-05669-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 05/27/2020] [Accepted: 09/21/2020] [Indexed: 12/25/2022]
Abstract
RATIONALE Alcohol and nicotine co-dependence is common in humans, and nicotine increases alcohol drinking in humans without alcohol use disorder (AUD). Nevertheless, there is little basic research on the interactions between the reinforcing effects of these two drugs. OBJECTIVES The aim of this study was to investigate the effects of chronic nicotine injections on oral alcohol self-administration in alcohol non-dependent rats. METHODS After stable alcohol self-administration was reached (baseline) and a period without alcohol access, adult male rats were treated with chronic nicotine or saline injections for 105 days during which time they were tested intermittently for alcohol self-administration. There were 3 experimental groups: (1) saline, rats treated with saline for 105 days; (2) early nicotine, rats treated with nicotine for 70 days, and then with saline for 35 days; and (3) late nicotine: rats treated with saline for 35 days, and then with nicotine for 70 days. RESULTS Our results indicate that (1) chronic nicotine increases alcohol consumption regardless of whether exposure to alcohol was interrupted (early nicotine) or not (late nicotine) before the start of nicotine treatment, (2) the number of alcohol reinforcements correlates to blood-alcohol levels, and (3) alcohol self-administration rapidly decreases when nicotine is no longer available (early nicotine). CONCLUSIONS These discoveries may have clinical implications in social drinkers that use nicotine products, in that chronic nicotine can escalate alcohol drinking and cessation of nicotine exposure may decrease alcohol use.
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Affiliation(s)
- Christian Montanari
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, 70112, USA.
| | - Maria E Secci
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Ashlyn Driskell
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Katherine O McDonald
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Connor L Schratz
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Nicholas W Gilpin
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.,Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.,Alcohol & Drug Abuse Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.,Southeast Louisiana VA Healthcare System (SLVHCS), New Orleans, LA, 70119, USA
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12
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Abstract
PURPOSE OF REVIEW Obesity is closely linked with the pathogenesis of type 2 diabetes (T2DM) and cardiovascular disease (CVD), and whilst smoking cessation is associated with weight gain, there are concerns that this weight gain may offset the benefit of CVD risk reduction especially in those with considerable post-cessation weight gain. The aim of this narrative review is to evaluate recent evidence on smoking cessation and cardiometabolic outcomes and discuss limitations of current knowledge and studies. RECENT FINDINGS Nicotine is a key player in modulating energy balance by influencing lipid storage in adipose tissue by affecting lipolysis, energy input by modulating appetite and energy output by increasing sympathetic drive and thermogenesis. It also increases insulin resistance and promotes abdominal obesity. The CVD risk and mortality associated with cigarette smoking potentiate the CVD risks in patients with diabetes. Evidence supports the benefit of quitting cigarette smoking regardless of any subsequent weight gain. Data suggests that the cardiometabolic risk is limited to the first few years and that cardiovascular health and mortality benefit of smoking cessation outweighs the harm related to weight gain. This weight gain can be limited by nicotine replacement of which e-cigarettes (vaping) are increasingly popular if it is not an alternative to cigarette smoking. However, long-term health data on e-cigarettes is needed prior to formal recommendation for its use in smoking cessation. The recommendation for cessation of cigarette smoking is justified for those at high risk of weight gain and diabetes. However, for most benefit, consideration should be given for personalized weight management to limit weight gain. Awareness of a 'lean paradox' by which lower weight is associated with increased CVD risk may help to improve motivation and insight into the bias of smoking, health and body composition otherwise known to epidemiologists as the 'obesity paradox'.
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Affiliation(s)
- Katarina Kos
- Institute of Biomedical and Clinical Sciences, University of Exeter Medical School, University of Exeter, Exeter, Devon, UK.
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13
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Bloom EL, Hunt L, Tidey J, Ramsey SE. Pilot feasibility trial of dual contingency management for cigarette smoking cessation and weight maintenance among weight-concerned female smokers. Exp Clin Psychopharmacol 2020; 28:609-615. [PMID: 31647278 PMCID: PMC7180087 DOI: 10.1037/pha0000331] [Citation(s) in RCA: 4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Many women who smoke cigarettes report that concern about weight gain is a barrier to quitting. Indeed, most quitters gain weight and some attribute relapses to weight gain concern. Contingency management (CM), which refers to reinforcing a target behavior with financial incentives, has been demonstrated effective for promoting smoking abstinence and weight management independently. We conducted a pilot trial to establish the feasibility of dual CM, in which both smoking cessation and weight maintenance were incentivized, as a smoking cessation intervention for female weight-concerned smokers. Participants (N = 10) received a 12-week intervention during which they earned financial incentives for smoking abstinence, verified by breath carbon monoxide (CO) testing, and for maintaining their weight (larger incentives for gaining less than five pounds, smaller incentives for 5-10 pound gain) while abstaining from smoking. They attended an end of intervention visit at week 13 and a follow-up visit at week 26. Total compensation was up to $550 ($255 for participation independent of smoking and weight, $145 for smoking abstinence incentives, and $150 for weight maintenance incentives). Results indicated that five of the 10 participants (50%) were continuously abstinent for at least 4 weeks and received at least 2 weight maintenance incentives. Three participants (33%) were abstinent at every visit they attended from quit date through week 26; 2 of these 3 had gained more than 10 pounds by week 26. Additional formative research to test alternative incentive schedules and modalities should be conducted before CM-W is evaluated in a larger trial. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
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Affiliation(s)
| | | | | | - Susan E. Ramsey
- Alpert Medical School of Brown University,Rhode Island Hospital
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Cornelius T, Schwartz JE, Balte P, Bhatt SP, Cassano PA, Currow D, Jacobs DR, Johnson M, Kalhan R, Kronmal R, Loehr L, O'Connor GT, Smith B, White WB, Yende S, Oelsner EC. A Dyadic Growth Modeling Approach for Examining Associations Between Weight Gain and Lung Function Decline. Am J Epidemiol 2020; 189:1173-1184. [PMID: 32286615 DOI: 10.1093/aje/kwaa059] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 04/07/2020] [Accepted: 04/10/2020] [Indexed: 12/30/2022] Open
Abstract
The relationship between body weight and lung function is complex. Using a dyadic multilevel linear modeling approach, treating body mass index (BMI; weight (kg)/height (m)2) and lung function as paired, within-person outcomes, we tested the hypothesis that persons with more rapid increase in BMI exhibit more rapid decline in lung function, as measured by forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), and their ratio (FEV1:FVC). Models included random intercepts and slopes and adjusted for sociodemographic and smoking-related factors. A sample of 9,115 adults with paired measurements of BMI and lung function taken at ≥3 visits were selected from a pooled set of 5 US population-based cohort studies (1983-2018; mean age at baseline = 46 years; median follow-up, 19 years). At age 46 years, average annual rates of change in BMI, FEV1, FVC, and FEV1:FVC ratio were 0.22 kg/m2/year, -25.50 mL/year, -21.99 mL/year, and -0.24%/year, respectively. Persons with steeper BMI increases had faster declines in FEV1 (r = -0.16) and FVC (r = -0.26) and slower declines in FEV1:FVC ratio (r = 0.11) (all P values < 0.0001). Results were similar in subgroup analyses. Residual correlations were negative (P < 0.0001), suggesting additional interdependence between BMI and lung function. Results show that greater rates of weight gain are associated with greater rates of lung function loss.
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Rose JE, Davis JM. Combination Lorcaserin and Nicotine Patch for Smoking Cessation Without Weight Gain. Nicotine Tob Res 2020; 22:1627-1631. [PMID: 31589323 PMCID: PMC7443600 DOI: 10.1093/ntr/ntz149] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 08/30/2019] [Indexed: 11/13/2022]
Abstract
INTRODUCTION This study explored the efficacy of combination lorcaserin and nicotine patch for smoking cessation treatment and prevention of postsmoking cessation weight gain. METHODS We conducted a trial in which 61 adult daily smokers were asked to quit smoking using a combination of lorcaserin and nicotine patch. During the first 2 weeks of treatment prior to the quit day, participants were randomized to receive either lorcaserin (10 mg twice daily) plus nicotine patch (21 mg) or placebo plus nicotine patch (21 mg). Following this 2-week period, participants received both medications for 12 weeks. Outcomes included 4-week continuous smoking abstinence at the end of treatment (weeks 7-10 postquit attempt), weight change, ad libitum smoking, withdrawal symptoms, and ratings of cigarette reward. RESULTS Biochemically confirmed continuous smoking abstinence from 7 to 10 weeks postquit attempt was 31.1% (90% confidence interval, 21.4%-40.8%). Participants who quit smoking showed no weight gain; in fact, mean weight change was minus 0.16 kg (SD = 3.27) over the study period. There was an unexpected but strong association (p = .006) between a decrease in sensory enjoyment of smoking and successful quit outcome on this regimen. During the prequit randomization period, lorcaserin versus placebo reduced the impact of smoking to relieve craving for cigarettes as well as the sensory enjoyment of smoking (p = .005). Adherence and tolerability to lorcaserin and nicotine patch was good. CONCLUSIONS The combination of lorcaserin and nicotine patch was well tolerated, associated with a relatively high smoking abstinence rate, and effectively prevented weight gain associated with quitting smoking. IMPLICATIONS This report provides an important contribution to the literature because it details evidence of a medication combination-lorcaserin and nicotine-that is effective for smoking cessation and for ameliorating weight gain associated with smoking cessation. For many smokers, postcessation weight gain is a major obstacle to quitting, and this medication combination provides a suitable treatment option for these smokers. CLINICAL TRIAL REGISTRATION NCT02906644.
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Affiliation(s)
- Jed E Rose
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
| | - James M Davis
- Division of Internal Medicine, Department of Medicine, Duke University, Durham, NC
- Duke Cancer Institute, Durham, NC
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Rhoades DA, Comiford AL, Dvorak JD, Ding K, Hopkins M, Spicer P, Wagener TL, Doescher MP. Perceptions of Smoking and Vaping on Weight Control Among Adult American Indians Who Smoke. J Community Health 2019; 44:1120-6. [PMID: 31273619 DOI: 10.1007/s10900-019-00694-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Interest in electronic cigarette (EC) use, or vaping, to help control weight is increasing. Many American Indian (AI) populations have a high prevalence of smoking, obesity, and EC use, but their perceptions of EC use for weight control are unknown. In Oklahoma in 2016, 375 AI adults who smoke completed a survey including perceptions about smoking and EC effects on weight control. Only 24% believed that smoking helps control weight, and 8% believed that vaping helps control weight. Perceptions differed by EC use, with ever users more often than never users perceiving that smoking (30% vs 12%, respectively; p < .01) and vaping (10% vs 5%; p = .04) help to control weight. Sex, age group (18-44 years vs 45 + years), education (high school graduate/equivalent vs less than high school), smoking cessation attempt in past year, and likelihood to quit in 6 months were not associated with weight control perceptions for either smoking or vaping. Uncertainty regarding EC effects on weight control was less common among EC ever users compared to never users (41% vs 53%, respectively; p = .04). Most people who did not believe or were uncertain that smoking controls weight also did not believe or were uncertain that vaping controls weight. However, only a minority (29%) of people who believed smoking controls weight also believed that vaping controls weight. Among adult AI who smoke, both smoking and vaping were infrequently perceived as helping to control weight, but such perceptions were reported more frequently among those who ever used ECs.
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Han JM, Joo NS. Impact of Exercise on the Presence of Urinary Ketones Based on Korea National Health and Nutrition Examination Survey Data, 2014-2015. J Obes Metab Syndr 2020; 29:143-149. [PMID: 32493836 PMCID: PMC7338494 DOI: 10.7570/jomes20001] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/26/2020] [Accepted: 04/09/2020] [Indexed: 12/23/2022] Open
Abstract
Background Ketone bodies are a well-known metabolite from the utilization of fatty acids in the fasting state. Some studies have demonstrated the metabolic benefits of urinary ketones in a specific population in whom ketone bodies were detected. However, other studies described the influence of associated factors on the presence of urinary ketone bodies. In the present study, we analyzed lifestyle factors that are hypothesized to be related to the presence of ketone bodies in urine. Methods Data from the Korea National Health and Nutrition Examination Survey (KNHANES, 2014–2015) were analyzed. The urinary ketone-positive group was defined as the population in whom urinary ketones were detected. We compared differences in metabolic characteristics as well as lifestyle characteristics such as smoking, alcohol intake, education levels, and exercise between the urine ketone-positive and -negative groups. Results Of the 9,379 identified eligible subjects, the urine-ketone group showed metabolic benefits with respect to several factors such as body mass index, waist circumference, triglyceride, and high density lipoprotein cholesterol after adjustment for sex and age. A higher proportion of urinary ketones was associated with current smoking (P=0.050), high education level (P=0.008), and aerobic exercise (P=0.021). Conclusion Aerobic exercise was identified as a factor associated with the presence of urinary ketones. It is also an important lifestyle intervention factor for the recovery of urinary ketones in patients with obesity.
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Affiliation(s)
- Jong-Min Han
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Korea
| | - Nam-Seok Joo
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Korea
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Liu G, Hu Y, Zong G, Pan A, Manson JE, Rexrode KM, Rimm EB, Hu FB, Sun Q. Smoking cessation and weight change in relation to cardiovascular disease incidence and mortality in people with type 2 diabetes: a population-based cohort study. Lancet Diabetes Endocrinol 2020; 8:125-133. [PMID: 31924561 PMCID: PMC6986932 DOI: 10.1016/s2213-8587(19)30413-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/21/2019] [Accepted: 11/21/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND To reduce their overall substantially increased risk of cardiovascular disease and premature mortality, smoking cessation is especially important for people with diabetes. However, the effect of weight change after quitting smoking on the long-term health consequences of smoking cessation is unclear. We aimed to examine smoking cessation and subsequent weight change in relation to incident cardiovascular disease events and mortality among adults with type 2 diabetes. METHODS In this population-based cohort study, we analysed data from people with type 2 diabetes from two prospective cohorts in the USA: the Nurses' Health Study (1976-2014) and the Health Professionals Follow-Up Study (1986-2014). We included participants from both cohorts who either had prevalent type 2 diabetes or were diagnosed during the study, and who were either current smokers or never smokers without cardiovascular disease or cancer at diagnosis of diabetes. Information on demographics, newly diagnosed diseases, medical history, and lifestyle factors, including smoking status and weight change, was updated every 2 years through validated questionnaires. We assessed the incidence of cardiovascular disease and all-cause and cause-specific mortality among recent quitters (within 6 years of stopping) and long-term quitters (>6 years) associated with weight change within 6 years of smoking cessation among people with type 2 diabetes. We did a multivariable-adjusted Cox proportional hazard models to estimate hazard ratios (HRs) for the associations of smoking cessation and weight change on the outcomes. FINDINGS Of 173 229 total cohort participants (121 700 from the Nurses' Health Study and 51 529 from the Health Professionals Follow-Up Study), 10 809 people with type 2 diabetes were included in the incident cardiovascular disease analysis and 9688 were included in the mortality analysis. 2580 incident cases of cardiovascular disease occurred during 153 166 person-years of follow-up, and 3827 deaths occurred during 152 811 person-years of follow-up. Recent quitters (2-6 consecutive years since smoking cessation) without weight gain within the first 6 years of quitting had a significantly lower risk of cardiovascular disease than people who continued to smoke (multivariable-adjusted HR 0·83 [95% CI 0·70-0·99] among all recent quitters, 0·77 [0·62-0·95] among recent quitters without weight gain, 0·99 [0·70-1·41] among recent quitters with weight gain of 0·1-5·0 kg, 0·89 [0·65-1·23] among recent quitters with weight gain of >5·0 kg, and 0·72 [0·61-0·84] among longer-term quitters [>6 consecutive years since smoking cessation]). Weight gain within 6 years after smoking cessation did not attenuate the inverse relation between long-term cessation and all-cause mortality (multivariable-adjusted HR 0·69 [95% CI 0·58-0·82] among long-term quitters without weight gain, 0·57 [0·45-0·71] among long-term quitters with weight gain of 0·1-5·0 kg, and 0·51 [0·42-0·62] among long-term quitters with weight gain of >5·0 kg), with similar results observed for cardiovascular disease and cancer mortality. INTERPRETATION Smoking cessation without subsequent weight gain is associated with a reduced risk of cardiovascular disease and mortality among smokers with type 2 diabetes. Weight gain after smoking cessation attenuates the reduction in risk of developing cardiovascular disease, but does not attenuate the beneficial effect of smoking cessation with respect to mortality. These findings confirm the overall health benefits of quitting smoking among people with type 2 diabetes, but also emphasise the importance of weight management after smoking cessation to maximise its health benefits. FUNDING US National Institutes of Health.
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Affiliation(s)
- Gang Liu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Yang Hu
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Geng Zong
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - An Pan
- Ministry of Education Key Laboratory of Environment and Health, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - JoAnn E Manson
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Kathryn M Rexrode
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Division of Women's Health, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Eric B Rimm
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Frank B Hu
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Qi Sun
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
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Kragel EA, Sweitzer MM, Davis JM. The Effect of Brief Mindfulness Training on Brain Reactivity to Food Cues During Nicotine Withdrawal: A Pilot Functional Imaging Study. Mindfulness (N Y) 2019; 10:2272-6. [PMID: 31687047 DOI: 10.1007/s12671-019-01201-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objectives Many individuals who smoke relapse due to weight gain. Mindfulness training has been shown to help smokers quit smoking, and, in other populations, has been used to help people lose weight. This study was designed to assess the effect of one week of mindfulness practice on food cravings in smokers during 12-hour smoking abstinence. Methods We assessed daily smokers with a history of smoking lapse after weight gain. Participants were provided with brief training in mindfulness meditation and mindful eating and were asked to practice each skill daily for one week. Before and after this week of mindfulness practice, participants completed surveys to rate their nicotine dependence and food cravings and underwent testing via functional magnetic resonance imaging. Results Study results included pre-post intervention reduction in brain activity in dorsomedial prefrontal cortex, visual areas, and pre-motor areas, regions potentially associated with response to food images. Conclusions The study was small; however, it suggests the possibility that mindfulness training might be used to decrease food cravings after smoking cessation.
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al'Absi M, Lemieux A, Hodges JS, Allen S. Circulating orexin changes during withdrawal are associated with nicotine craving and risk for smoking relapse. Addict Biol 2019; 24:743-753. [PMID: 30117237 DOI: 10.1111/adb.12643] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 12/12/2017] [Revised: 05/11/2018] [Accepted: 05/17/2018] [Indexed: 01/09/2023]
Abstract
We examined the extent to which orexin measured during smoking and the early phase of abstinence was related to craving, withdrawal, stress hormones, and risk for smoking relapse in men and women. Considering its role in modulating nicotine-related reward, we predicted that a reduction in circulating orexin during withdrawal would be associated with increased craving and risk for smoking relapse. Two hundred and eighty five participants provided biological samples and self-report information to identify predictors of smoking relapse. All participants attended two laboratory sessions, which were before and after a period of required abstinence from smoking. After quitting, participants also attended four weekly sessions to track smoking relapse. Only smokers who relapsed within the follow-up period exhibited reduced orexin levels during the initial withdrawal period; ACTH, but not craving nor cortisol, increased across the abstinence period for successful abstainers but not for relapsers. Sex differences in orexin and craving or withdrawal associations also emerged. Adding sex, HPA hormones, and self-reported measures of craving and withdrawal as potential mediators had minimal effects on the above abstinence and orexin effects. These results provide the first evidence that circulating orexin may be a useful marker of risk for relapse; and sex, adrenal hormones, and self-reported craving and withdrawal were not mediators of this effect. The results point to a promising pathway to investigate objective biological markers for craving and smoking relapse and highlight the complexity of the neurobiology of relapse.
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Affiliation(s)
- Mustafa al'Absi
- Department of Family Medicine and Biobehavioral HealthUniversity of Minnesota Medical School Duluth MN USA
- PsychiatryUniversity of Minnesota, Twin Cities Minneapolis MN USA
| | - Andrine Lemieux
- Department of Family Medicine and Biobehavioral HealthUniversity of Minnesota Medical School Duluth MN USA
| | - James S. Hodges
- Division of BiostatisticsUniversity of Minnesota, Twin Cities Minneapolis MN USA
| | - Sharon Allen
- Department of Family Medicine and Community HealthUniversity of Minnesota, Twin Cities Minneapolis MN USA
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Cao Y, Hardy R, Wulaningsih W. Associations of medical conditions, lifestyle and unintentional weight loss in early old age: The 1946 British Birth Cohort. PLoS One 2019; 14:e0211952. [PMID: 30964855 PMCID: PMC6456161 DOI: 10.1371/journal.pone.0211952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 01/24/2019] [Indexed: 11/22/2022] Open
Abstract
Background Unintentional weight loss in older people has been linked to increased risk of mortality. We aimed to investigate common medical conditions and lifestyle factors, including body fat distribution, as potential determinants of recent and prospective unintentional weight loss in early old age. Methods From the Medical Research Council (MRC) National Survey of Health and Development (NSHD), we included a total of 2234 study members aged 60–64 with information on unintentional weight loss in 2006–2010. Of these, 2136 also had information on unintentional weight loss recorded in 2015. Logistic regression was conducted to examine the associations between medical conditions, lifestyle, and body fat distribution at age 60–64 and unintentional weight loss at age 60–64 and 69. Results A total of 109 of 2234 study members had unintentional weight loss at ages 60–64, and 166 of 2136 at age 69. Never smoking was associated with lower risk of unintentional weight loss at age 60–64 (OR = 0.29, 95%CI = 0.12–0.68 compared to current smokers), and this association remained when adjusted for other determinants. Greater waist-hip ratio (OR = 0.95, 95%CI = 0.91–0.99) and body fat-lean mass ratio (OR = 0.96, 95%CI = 0.94–0.99) were associated with less likelihood of unintentional weight loss at age 60–64. Never smoking and greater hip circumference at age 60–64 were associated with lower odds of unintentional weight loss at age 69. Conclusions Smoking status and body fat distribution may help identify those at risk of unintentional weight loss in early old age. Their benefit in interventions to prevent age-associated weight loss needs to be further investigated.
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Affiliation(s)
- Yixiao Cao
- MRC Unit for Lifelong Health and Ageing at UCL, London, United Kingdom
| | - Rebecca Hardy
- MRC Unit for Lifelong Health and Ageing at UCL, London, United Kingdom
| | - Wahyu Wulaningsih
- MRC Unit for Lifelong Health and Ageing at UCL, London, United Kingdom
- Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
- * E-mail:
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Hu Y, Zong G, Liu G, Wang M, Rosner B, Pan A, Willett WC, Manson JE, Hu FB, Sun Q. Smoking Cessation, Weight Change, Type 2 Diabetes, and Mortality. N Engl J Med 2018; 379:623-632. [PMID: 30110591 PMCID: PMC6165582 DOI: 10.1056/nejmoa1803626] [Citation(s) in RCA: 150] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Whether weight gain after smoking cessation attenuates the health benefits of quitting is unclear. METHODS In three cohort studies involving men and women in the United States, we identified those who had reported quitting smoking and we prospectively assessed changes in smoking status and body weight. We estimated risks of type 2 diabetes, death from cardiovascular disease, and death from any cause among those who had reported quitting smoking, according to weight changes after smoking cessation. RESULTS The risk of type 2 diabetes was higher among recent quitters (2 to 6 years since smoking cessation) than among current smokers (hazard ratio, 1.22; 95% confidence interval [CI], 1.12 to 1.32). The risk peaked 5 to 7 years after quitting and then gradually decreased. The temporary increase in the risk of type 2 diabetes was directly proportional to weight gain, and the risk was not increased among quitters without weight gain (P<0.001 for interaction). In contrast, quitters did not have a temporary increase in mortality, regardless of weight change after quitting. As compared with current smokers, the hazard ratios for death from cardiovascular disease were 0.69 (95% CI, 0.54 to 0.88) among recent quitters without weight gain, 0.47 (95% CI, 0.35 to 0.63) among those with weight gain of 0.1 to 5.0 kg, 0.25 (95% CI, 0.15 to 0.42) among those with weight gain of 5.1 to 10.0 kg, 0.33 (95% CI, 0.18 to 0.60) among those with weight gain of more than 10.0 kg, and 0.50 (95% CI, 0.46 to 0.55) among longer-term quitters (>6 years since smoking cessation). Similar associations were observed for death from any cause. CONCLUSIONS Smoking cessation that was accompanied by substantial weight gain was associated with an increased short-term risk of type 2 diabetes but did not mitigate the benefits of quitting smoking on reducing cardiovascular and all-cause mortality. (Funded by the National Institutes of Health.).
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Affiliation(s)
- Yang Hu
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - Geng Zong
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - Gang Liu
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - Molin Wang
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - Bernard Rosner
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - An Pan
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - Walter C Willett
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - JoAnn E Manson
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - Frank B Hu
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
| | - Qi Sun
- From the Departments of Nutrition (Y.H., G.Z., G.L., W.C.W., F.B.H., Q.S.), Epidemiology (Y.H., M.W., W.C.W., J.E.M., F.B.H.), and Biostatistics (M.W., B.R.), Harvard T.H. Chan School of Public Health, and the Channing Division of Network Medicine (M.W., W.C.W., J.E.M., F.B.H., Q.S.) and the Division of Preventive Medicine (J.E.M.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School - all in Boston; and the Key Laboratory of Nutrition, Metabolism, and Food Safety, Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai (G.Z.), and the Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (A.P.) - both in China
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Tan MM, Okuyemi KS, Resnicow K, Dietz NA, Antoni MH, Webb Hooper M. Association between smoking cessation and weight gain in treatment-seeking African Americans. Addict Behav 2018; 81:84-90. [PMID: 29452980 DOI: 10.1016/j.addbeh.2018.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 01/31/2018] [Accepted: 02/02/2018] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Research has shown that African Americans gain more than average weight after smoking cessation. However, African Americans have been underrepresented in post-cessation weight gain research. The current study examined 1) the pattern of weight gain and 2) the association between smoking status and weight gain in a sample of African Americans seeking smoking cessation treatment. METHODS Data were drawn from a randomized controlled trial testing the efficacy of a 4-week culturally specific smoking cessation cognitive behavioral therapy (CBT) intervention among African American smokers (N = 342). Weight was measured and self-reported smoking status was biochemically verified at baseline, end of counseling, 3-, 6-, and 12-month follow-ups. Random effects multilevel modeling was used to examine weight gain over twelve months post CBT, and a fully unconditional model tested the pattern of weight gain over time. Smoking status was included as a time-varying factor to examine its effect on weight gain, controlling for potential confounding variables. RESULTS Weight significantly increased among those who remained abstinent over 12 months post CBT [average gain of seven lbs. (three kg)]. Controlling for covariates, abstinence was predictive of the rate of weight gain for those with high weight concern. CONCLUSIONS Weight gain among African American abstainers was comparable to the average post-cessation weight gain observed among the general population. It is possible that exposure to CBT (culturally specific or standard) may have mitigated excessive weight gain. Future research should assess predictors of weight gain in African American smokers to inform future smoking cessation interventions and help elucidate factors that contribute to tobacco- and obesity-related health disparities.
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Collins PF, Stratton RJ, Kurukulaaratchy RJ, Elia M. Influence of deprivation on health care use, health care costs, and mortality in COPD. Int J Chron Obstruct Pulmon Dis 2018; 13:1289-1296. [PMID: 29719384 PMCID: PMC5914553 DOI: 10.2147/copd.s157594] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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] [Indexed: 11/23/2022] Open
Abstract
Background and aim Deprivation is associated with the incidence of COPD, but its independent impact on clinical outcomes is still relatively unknown. This study aimed to explore the influence of deprivation on health care use, costs, and survival. Methods A total of 424 outpatients with COPD were assessed for deprivation across two hospitals. The English Index of Multiple Deprivation (IMD) was used to establish a deprivation score for each patient. The relationship between deprivation and 1-year health care use, costs, and mortality was examined, controlling for potential confounding variables (age, malnutrition risk, COPD severity, and smoking status). Results IMD was significantly and independently associated with emergency hospitalization (β-coefficient 0.022, SE 0.007; p=0.001), length of hospital stay, secondary health care costs (β-coefficient £101, SE £30; p=0.001), and mortality (HR 1.042, 95% CI 1.015–1.070; p=0.002). IMD was inversely related to participation in exercise rehabilitation (OR 0.961, 95% CI 0.930–0.994; p=0.002) and secondary care appointments. Deprivation was also significantly related to modifiable risk factors (smoking status and malnutrition risk). Conclusion Deprivation in patients with COPD is associated with increased emergency health care use, health care costs, and mortality. Tackling deprivation is complex; however, strategies targeting high-risk groups and modifiable risk factors, such as malnutrition and smoking, could reduce the clinical and economic burden.
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Affiliation(s)
- Peter F Collins
- NIHR Nutrition Biomedical Research Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, Hampshire, UK.,Nutrition and Dietetics, School of Exercise and Nutrition Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia.,Department of Nutrition and Dietetics, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Rebecca J Stratton
- NIHR Nutrition Biomedical Research Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, Hampshire, UK
| | - Ramesh J Kurukulaaratchy
- NIHR Respiratory Biomedical Research Centre, Southampton General Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, Hampshire, UK.,Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, Hampshire, UK
| | - Marinos Elia
- NIHR Nutrition Biomedical Research Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, Hampshire, UK
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Russo C, Cibella F, Mondati E, Caponnetto P, Frazzetto E, Caruso M, Caci G, Polosa R. Lack of Substantial Post-Cessation Weight Increase in Electronic Cigarettes Users. Int J Environ Res Public Health 2018; 15:ijerph15040581. [PMID: 29570695 PMCID: PMC5923623 DOI: 10.3390/ijerph15040581] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 01/23/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 02/06/2023]
Abstract
Minimization of post-cessation weight gain in quitters is important, but existing approaches (e.g., antismoking medications) shows only limited success. We investigated changes in body weight in smokers who quit or reduced substantially their cigarette consumption by switching to electronic cigarettes (ECs) use. Body weight and smoking/vaping history were extracted from medical records of smokers and ex-smokers to match three study groups: (1) regular EC users on at least two consecutive follow-up visits; (2) regular smokers (and not using ECs); (3) subjects who reported sustained smoking abstinence after completing a cessation program. Review of their medical records was conducted at two follow-up visits at 6- (F/U 6m) and 12-months (F/U 12m). A total of 86 EC users, 93 regular smokers, and 44 quitters were studied. In the EC users study group, cigarettes/day use decreased from 21.1 at baseline to 1.8 at F/U 12m (p < 0.0001). Dual usage was reported by approximately 50% of EC users. Both within factor (time, p < 0.0001) and between factor (study groups, p < 0.0001) produced significant effect on weight (% change from baseline), with a significant 4.8% weight gain from baseline in the quitters study group at F/U 12m. For the EC users, weight gain at F/U 12m was only 1.5% of baseline. There was no evidence of post-cessation weight increase in those who reduced substantially cigarette consumption by switching to ECs (i.e., dual users) and only modest post-cessation weight increase was reported in exclusive EC users at F/U 12m. By reducing weight gain and tobacco consumption, EC-based interventions may promote an overall improvement in quality of life.
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Affiliation(s)
| | - Fabio Cibella
- National Research Council of Italy, Institute of Biomedicine and Molecular Immunology, 90100 Palermo, Italy.
| | - Enrico Mondati
- Institute of Internal and Emergency Medicine, Azienda Ospedaliero-Universitaria "Policlinico-V. Emanuele", University of Catania, 95123 Catania, Italy.
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
| | - Pasquale Caponnetto
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Centro per la Prevenzione e Cura del Tabagismo (CPCT), Azienda Ospedaliero-Universitaria "Policlinico-V. Emanuele", University of Catania, 95123 Catania, Italy.
| | - Evelise Frazzetto
- Institute of Internal and Emergency Medicine, Azienda Ospedaliero-Universitaria "Policlinico-V. Emanuele", University of Catania, 95123 Catania, Italy.
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
| | - Massimo Caruso
- Institute of Internal and Emergency Medicine, Azienda Ospedaliero-Universitaria "Policlinico-V. Emanuele", University of Catania, 95123 Catania, Italy.
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
| | - Grazia Caci
- Institute of Internal and Emergency Medicine, Azienda Ospedaliero-Universitaria "Policlinico-V. Emanuele", University of Catania, 95123 Catania, Italy.
| | - Riccardo Polosa
- Institute of Internal and Emergency Medicine, Azienda Ospedaliero-Universitaria "Policlinico-V. Emanuele", University of Catania, 95123 Catania, Italy.
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Centro per la Prevenzione e Cura del Tabagismo (CPCT), Azienda Ospedaliero-Universitaria "Policlinico-V. Emanuele", University of Catania, 95123 Catania, Italy.
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Wakiya T, Ishido K, Kudo D, Kimura N, Sakuraba S, Tsutsumi S, Kagiya T, Uchida C, Hakamada K. Smoking cessation contributes to weight gain in patients with hepatobiliopancreatic malignancy. Clin Nutr ESPEN 2018; 23:54-60. [PMID: 29460814 DOI: 10.1016/j.clnesp.2017.12.011] [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: 06/06/2017] [Revised: 10/14/2017] [Accepted: 12/13/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND & AIMS The relationship between smoking cessation and weight gain is well recognized. However, there is no data currently available on the effect of smoking cessation on weight gain in patients with malignancy. The aim of this study was to clarify the body weight (BW) change after smoking cessation in patients with malignancy. METHODS We retrospectively analyzed 159 subjects who underwent hepatobiliopancreatic surgery. The smoking status was determined using questionnaires administered at the initial presentation, and the candidates were divided into two groups: recent quitters and nonsmokers. The change in the BW was compared between these two groups. RESULTS There were 134 subjects with malignant disease (84.3%), with a median age of 68 (range: 26-84) years. In the nonsmoker group, 28 of 116 subjects (24.1%) gained weight between the initial presentation and admission. In the recent quitter group, 12 of 18 subjects (66.7%) gained weight in the same period (P < 0.01). Regarding the change in the BW from the initial presentation, recent quitters gained more weight than nonsmokers (+1.7 kg [+2.7%] vs. -1.0 kg [-2.0%], P < 0.01). Furthermore, the improvement from the initial presentation was seen in a higher percentage of recent quitters than nonsmokers with respect to Onodera's prognostic nutritional index (61.1% vs. 36.2%, P = 0.04) and the controlling nutritional status score (38.9% vs. 19.3%, P = 0.07). CONCLUSIONS Weight gain due to smoking cessation was observed even in patients with hepatobiliopancreatic malignancy.
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Affiliation(s)
- Taiichi Wakiya
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan.
| | - Keinosuke Ishido
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan
| | - Daisuke Kudo
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan
| | - Norihisa Kimura
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan
| | - Shingo Sakuraba
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan
| | - Shinji Tsutsumi
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan
| | - Takuji Kagiya
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan
| | - Chiaki Uchida
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan
| | - Kenichi Hakamada
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Japan
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Ding R, Huang T, Han J. Diet/lifestyle and risk of diabetes and glycemic traits: a Mendelian randomization study. Lipids Health Dis 2018; 17:18. [PMID: 29375034 PMCID: PMC5787924 DOI: 10.1186/s12944-018-0666-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 06/12/2017] [Accepted: 01/22/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Observational studies have demonstrated diet/lifestyle play roles in development of type 2 diabetes (T2DM); however, it remains unclear whether these relationships are causal. METHODS A two-sample MR approach was used to examine the causal effect of diet/lifestyle upon risk of T2DM and glycemic traits. RESULTS The protein intake-increasing allele C of FTO was significant associated with higher risk of T2DM (Beta ± SE = 0.104 ± 0.014, P = 4.40 × 10- 11), higher level of HOMA-IR (Beta ± SE = 0.016 ± 0.004, P = 9.55 × 10- 5), HOMA-B (Beta ± SE = 0.008 ± 0.003, P = 0.020). Using MR analyses, increased protein intake was causally associated with an increased risk of T2DM (Beta ± SE = 0.806 ± 0.260, P = 0.002). In addition, smoking cessation was causally associated with increased levels of glycemic traits such as HOMA-IR (Beta ± SE = 0.165 ± 0.072, P = 0.021), fasting insulin (Beta ± SE = 0.132 ± 0.066, P = 0.047) and fasting glucose (Beta ± SE = 0.132 ± 0.064, P = 0.039). CONCLUSIONS These results provide evidence supporting a causal role for higher protein intake and smoking cession in T2DM. Our study provides further rationale for individuals at risk for diabetes to keep healthy lifestyle.
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Affiliation(s)
- Renyu Ding
- Department of Intensive Care Medicine, The First Hospital of China Medical University, Liaoning, 110001, China
| | - Tao Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China.
| | - Jiali Han
- Department of Otolaryngology, The First Hospital of China Medical University, Liaoning, 110001, China.
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Campion J, Checinski K, Nurse J, McNeill A. Smoking by people with mental illness and benefits of smoke-free
mental health services. ACTA ACUST UNITED AC 2018. [DOI: 10.1192/apt.bp.108.005710] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Smoking is the largest single cause of preventable illness in the UK. Those
with mental health problems smoke significantly more and are therefore at
greater risk. The new Health Act (2006) will require mental health
facilities in England to be completely smoke-free by 1st July 2008. This
article reviews the current literature regarding how smoking affects both
the physical and mental well-being of people with mental health problems. It
also considers the effects of smoke-free policy in mental health
settings.
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Courtemanche C, Tchernis R, Ukert B. The effect of smoking on obesity: Evidence from a randomized trial. J Health Econ 2018; 57:31-44. [PMID: 29179027 DOI: 10.1016/j.jhealeco.2017.10.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [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: 02/01/2017] [Revised: 08/17/2017] [Accepted: 10/17/2017] [Indexed: 06/07/2023]
Abstract
This paper aims to identify the causal effect of smoking on body mass index (BMI) using data from the Lung Health Study, a randomized trial of smoking cessation treatments. Since nicotine is a metabolic stimulant and appetite suppressant, quitting or reducing smoking could lead to weight gain. Using randomized treatment assignment to instrument for smoking, we estimate that quitting smoking leads to an average long-run weight gain of 1.8-1.9 BMI units, or 11-12 pounds at the average height. Semi-parametric models provide evidence of a diminishing marginal effect of smoking on BMI, while subsample regressions show that the impact is largest for younger individuals, those with no college degree, and those in the lowest quartile of baseline BMI.
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Affiliation(s)
- Charles Courtemanche
- Department of Economics, Andrew Young School of Policy Studies, Georgia State University, National Bureau of Economic Research, and Institute for the Study of Labor (IZA), United States.
| | - Rusty Tchernis
- Department of Economics, Andrew Young School of Policy Studies, Georgia State University, National Bureau of Economic Research, and Institute for the Study of Labor (IZA), United States
| | - Benjamin Ukert
- Leonard Davis Institute of Health Economics, Wharton School, University of Pennsylvania, United States
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Ukert B. The short- and long-run effects of smoking cessation on alcohol consumption. Int J Health Econ Manag 2017; 17:495-519. [PMID: 28786042 DOI: 10.1007/s10754-017-9220-1] [Citation(s) in RCA: 2] [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: 04/29/2017] [Accepted: 07/25/2017] [Indexed: 06/07/2023]
Abstract
This paper examines the short- and long-term effects of quitting smoking on alcohol consumption using the Lung Health Study, a randomized smoking cessation program. The paper estimates the relationship between smoking and alcohol consumption using several self-reported and objective smoking measures, while also implementing a two-stage least squares estimation strategy that utilizes the randomized smoking cessation program assignment as an instrument for smoking. The analysis leads to three salient findings. First, self-reported and clinically verified smoking measures provide mixed evidence on the short-term impact of quitting smoking on alcohol consumption. Second, the long-term impact of smoking on alcohol consumption, measured with the historic 5 years smoking behavior, suggests that those with the highest average cigarette consumption and those with the longest smoking history see the largest increase in alcohol consumption. Specifically, abstaining from smoking or reducing the average cigarette consumption to the mean level lowers alcohol consumption by roughly 25% per week. As a result, these findings present comprehensive evidence that smoking and drinking are complements in the long-term and that the public health and finance benefits in smoking cessations treatments are undervalued.
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Affiliation(s)
- Benjamin Ukert
- Leonard Davis Institute of Health Economics, University of Pennsylvania, 308 Colonial Penn Center, 3641 Locust Walk, Philadelphia, PA, 19104-6218, USA.
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Abstract
Despite accumulating evidence demonstrating strong epidemiologic and mechanistic associations between cigarette smoking, hyperglycemia, and the development of type 2 diabetes, tobacco abuse has not been uniformly recognized as a modifiable risk factor in diabetes prevention or screening strategies. In this review, we highlight population-based studies that have linked cigarette smoking with an increased risk of type 2 diabetes and summarize clinical and preclinical studies offering insight into mechanisms through which cigarette smoking and nicotine exposure impact body composition, insulin sensitivity, and pancreatic β cell function. Key questions for future studies are identified and strategies for smoking cessation as a means to decrease diabetes risk are discussed.
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Affiliation(s)
- Judith Maddatu
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Ind
| | | | - Carmella Evans-Molina
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Ind; Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Ind; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Ind; Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Ind; Roudebush VA Medical Center, Indianapolis, Ind.
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Rogers ES, Dave DM, Pozen A, Fahs M, Gallo WT. Tobacco cessation and household spending on non-tobacco goods: results from the US Consumer Expenditure Surveys. Tob Control 2017; 27:209-216. [DOI: 10.1136/tobaccocontrol-2016-053424] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 02/21/2017] [Accepted: 02/22/2017] [Indexed: 11/04/2022]
Abstract
ObjectivesTo estimate the impact of tobacco cessation on household spending on non-tobacco goods in the USA.MethodsUsing 2006–2015 Consumer Expenditure Survey data, 9130 tobacco-consuming households were followed for four quarters. Households were categorised during the fourth quarter as having: (1) recent tobacco cessation, (2) long-term cessation, (3) relapsed cessation or (4) no cessation. Generalised linear models were used to compare fourth quarter expenditures on alcohol, food at home, food away from home, housing, healthcare, transportation, entertainment and other goods between the no-cessation households and those with recent, long-term or relapsed cessation. The full sample was analysed, and then analysed by income quartile.ResultsIn the full sample, households with long-term and recent cessation had lower spending on alcohol, food, entertainment and transportation (p<0.001). Recent cessation was further associated with reduced spending on food at home (p<0.001), whereas relapsed cessation was associated with higher spending on healthcare and food away from home (p<0.001). In the highest income quartile, long-term and recent cessations were associated with reduced alcohol spending only (p<0.001), whereas in the lowest income quartile, long-term and recent cessations were associated with lower spending on alcohol, food at home, transportation and entertainment (p<0.001).ConclusionsHouseholds that quit tobacco spend less in areas that enable or complement their tobacco cessation, most of which may be motivated by financial strain. The most robust association between tobacco cessation and spending was the significantly lower spending on alcohol.
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Kabat GC, Heo M, Allison M, Johnson KC, Ho GYF, Tindle HA, Asao K, LaMonte MJ, Giovino GA, Rohan TE. Smoking Habits and Body Weight Over the Adult Lifespan in Postmenopausal Women. Am J Prev Med 2017; 52:e77-e84. [PMID: 27939236 DOI: 10.1016/j.amepre.2016.10.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 09/28/2016] [Accepted: 10/17/2016] [Indexed: 12/14/2022]
Abstract
INTRODUCTION The inter-relationships between smoking habits and weight gain are complex. However, few studies have examined the association of smoking habits with weight gain over the life course. METHODS Major smoking parameters and weight gain over time were examined in a large cohort of postmenopausal women aged 50-79 years at enrollment between 1993 and 1998 (N=161,808) and followed through 2014 (analyses conducted in 2016). Cross-sectional analyses were used to assess the association of smoking and body weight at baseline. Retrospective data were used to correlate smoking status with body weight over a 45-year period prior to enrollment. In addition, the association of smoking with weight gain over 6 years of follow-up was examined. RESULTS At baseline, women who had quit smoking prior to enrollment weighed 4.7 kg more than current smokers and 2.6 kg more than never smokers. Former, never, and current smokers all gained weight over the 45-year period from age 18 years to time of enrollment (average age, 63 years): 16.8, 16.4, and 14.6 kg, respectively. In prospective analyses, women who were current smokers at baseline but who quit smoking during follow-up gained more than 5 kg by Year 6 compared with current smokers at baseline who continued to smoke. Among long-term quitters, greater intensity of smoking and more recent quitting were associated with greater weight gain. CONCLUSIONS These results suggest that excess weight gain associated with smoking cessation occurs soon after quitting and is modest relative to weight gain in never smokers over the adult lifespan.
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Affiliation(s)
- Geoffrey C Kabat
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York.
| | - Moonseong Heo
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Matthew Allison
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California
| | - Karen C Johnson
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Gloria Y F Ho
- Department of Occupational Medicine, Epidemiology and Prevention, Northwell Health, Great Neck, New York
| | - Hilary A Tindle
- Department of Medicine, Vanderbilt University, Nashville, Tennessee
| | - Keiko Asao
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Michael J LaMonte
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, New York
| | - Gary A Giovino
- Department of Community Health and Health Behavior, School of Public Health and Health Professions, University at Buffalo, Buffalo, New York
| | - Thomas E Rohan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
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Abstract
BACKGROUND AND OBJECTIVES Approximately one in five ex-smokers reduces or maintains weight after smoking cessation but little is known about who succeeds to avoid weight gain. The purpose of this study was to identify predictors of weight reduction after long-term smoking cessation in a general population. METHODS Data was obtained from two Danish population-based cohorts (the Inter99 and the Helbred2006 study). Anthropometric measurements were performed by trained research staff. Out of 3.577 daily smokers at baseline 317 participants had quit smoking at the five-year follow-up for at least one year. Multiple logistic regression analysis was performed to determine predictors of weight reduction. RESULTS Thirteen percent reduced weight by at least 1 kg and 4% maintained their weight. Quitters with obesity had more than seven times higher odds than normal weight quitters to lose weight (OR 7.13 (95% CI 2.76-19.71)), and they had the largest median weight loss of 4.45 kg. The only other significant predictor of weight reduction was low tobacco consumption at baseline. CONCLUSIONS Predictors of weight reduction after smoking cessation were high body mass index and low tobacco consumption at baseline. This study might motivate smokers with obesity to quit smoking and health professionals to give them support.
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Affiliation(s)
- Charlotta Pisinger
- Research Centre for Prevention and Health, Glostrup Hospital, Building 84/85, 2600 Glostrup, Denmark
| | - Helle Øster Nielsen
- Faculty of Health and Medical Sciences, University of Copenhagen, 1123 Copenhagen K, Denmark
| | - Caroline Kuhlmann
- Faculty of Health and Medical Sciences, University of Copenhagen, 1123 Copenhagen K, Denmark
- *Caroline Kuhlmann:
| | - Susanne Rosthøj
- Section of Biostatistics, Institute of Public Health, University of Copenhagen, 1014 Copenhagen, Denmark
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Morales LF, Gordon-Larsen P, Guilkey D. Obesity and health-related decisions: An empirical model of the determinants of weight status across the transition from adolescence to young adulthood. Econ Hum Biol 2016; 23:46-62. [PMID: 27459276 PMCID: PMC5358100 DOI: 10.1016/j.ehb.2016.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 10/02/2015] [Revised: 06/20/2016] [Accepted: 06/21/2016] [Indexed: 05/13/2023]
Abstract
We estimate a structural dynamic model of the determinants of obesity. In addition to including many of the well-recognized endogenous factors mentioned in the literature as obesity determinants, we also model the individual's residential location as a choice variable, which is the main contribution of this paper to the literature. This allows us to control for an individual's self-selection into communities that possess the types of amenities in the built environment, which in turn affect their obesity-related behaviors such as physical activity (PA) and fast food consumption. We specify reduced form equations for a set of endogenous demand decisions, together with an obesity structural equation. The whole system of equations is jointly estimated by a semi-parametric full information log-likelihood method that allows for a general pattern of correlation in the errors across equations. Our model predicts a reduction in adult obesity of 7 percentage points as a result of a continued high level PA from adolescence into adulthood; a reduction of 0.7 (3) percentage points in adult obesity as a result of one standard deviation reduction in weekly fast food consumption for women (men); and a reduction of 0.02 (0.05) in adult obesity as a result of one standard deviation change in several neighborhood amenities for women (men). Another key finding is that controlling for residential self-selection has substantive implications. To our knowledge, this has not been yet documented within a full information maximum likelihood framework.
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Affiliation(s)
| | | | - David Guilkey
- Dept of Economics Carolina Population Center, United States.
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Bush T, Lovejoy J, Javitz H, Magnusson B, Torres AJ, Mahuna S, Benedict C, Wassum K, Spring B. Comparative effectiveness of adding weight control simultaneously or sequentially to smoking cessation quitlines: study protocol of a randomized controlled trial. BMC Public Health 2016; 16:615. [PMID: 27443485 PMCID: PMC4957297 DOI: 10.1186/s12889-016-3231-6] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 05/10/2016] [Indexed: 11/18/2022] Open
Abstract
Background Prevalence of multiple health risk behaviors is growing, and obesity and smoking are costly. Weight gain associated with quitting smoking is common and can interfere with quit success. Efficacy of adding weight management to tobacco cessation treatment has been tested with women in group sessions over an extended period of time, but has never been tested in real-world settings with men and women seeking help to quit. This paper describes the Best Quit study which tests the effectiveness of delivering tobacco and weight control interventions via existing quitline infrastructures. Methods Eligible and consenting smokers (n = 2550) who call a telephone quitline will be randomized to one of three groups; the standard quitline or standard quitline plus a weight management program added either simultaneously or sequentially to the tobacco program. The study aims to test: 1) the effectiveness of the combined intervention on smoking cessation and weight, 2) the cost-effectiveness of the combined intervention on cessation and weight and 3) theoretically pre-specified mediators of treatment effects on cessation: reduced weight concerns, increased outcome expectancies about quitting and improved self-efficacy about quitting without weight gain. Baseline, 6 month and 12 month data will be analyzed using multivariate statistical analyses and groups will be compared on treatment adherence, quit rates and change in weight among abstinent participants. To determine if the association between group assignment and primary outcomes (30-day abstinence and change in weight at 6 months) is moderated by pre-determined baseline and process measures, interaction terms will be included in the regression models and their significance assessed. Discussion This study will generate information to inform whether adding weight management to a tobacco cessation intervention delivered by phone, mail and web for smokers seeking help to quit will help or harm quit rates and whether a simultaneous or sequential approach is better at increasing abstinence and reducing weight gain post quit. If proven effective, the combined intervention could be disseminated across the U.S. through quitlines and could encourage additional smokers who have not sought cessation treatment for fear of gaining weight to make quit attempts. Trial registration Clinicaltrials.gov NCT01867983. Registered: May 30, 2013 Electronic supplementary material The online version of this article (doi:10.1186/s12889-016-3231-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Terry Bush
- Alere Wellbeing (now Optum), 999 3rd Ave, Seattle, WA, 98104-1139, USA.
| | - Jennifer Lovejoy
- Arivale, Inc. and University of Washington School of Public Health, 616 First Ave, Suite 700, Seattle, WA, 98104, USA
| | - Harold Javitz
- SRI International, 333 Ravenswood Ave, Menlo Park, CA, 94025-3493, USA
| | - Brooke Magnusson
- Alere Wellbeing (now Optum), 999 3rd Ave, Seattle, WA, 98104-1139, USA
| | | | - Stacey Mahuna
- Alere Wellbeing (now Optum), 999 3rd Ave, Seattle, WA, 98104-1139, USA
| | - Cody Benedict
- Bill and Melinda Gates Foundation, 440 5th Ave N, Seattle, WA, 98109, USA
| | - Ken Wassum
- Alere Wellbeing (now Optum), 999 3rd Ave, Seattle, WA, 98104-1139, USA
| | - Bonnie Spring
- Center for Behavior and Health, Feinberg School of Medicine, Northwestern University, 680 N. Lakeshore Drive, Suite 1220, Chicago, IL, 0611-8708, USA
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Krukowski RA, Bursac Z, Little MA, Klesges RC. The Relationship between Body Mass Index and Post-Cessation Weight Gain in the Year after Quitting Smoking: A Cross-Sectional Study. PLoS One 2016; 11:e0151290. [PMID: 26977598 DOI: 10.1371/journal.pone.0151290] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 02/25/2016] [Indexed: 12/25/2022] Open
Abstract
Introduction There is wide variability in the amount of weight gained when quitting smoking, but little is known about key predictors of weight gain. We examined the impact of body mass index (BMI) category and sociodemographic variables on post-cessation weight gain. Materials and Methods We utilized National Health and Nutrition Examination Survey data from five consecutive cycles of data collection from 2003–2004 to 2011–2012 to estimate post-cessation weight gain by BMI category among recent quitters (n = 654). We analyzed data on their “current weight” and their “past year weight”. We also compared the recent quitters with current smokers, in order to estimate the amount of weight that could be attributed to quitting smoking. Results Recent quitters gained 1.4 kg (95% CI: 0.8 to 2.0), while current smokers had a non-significant weight change (-0.01 kg (95% CI: -0.3 to 0.2). Weight gain was significant for those in the normal weight (3.1 kg, 95% CI: 2.3 to 3.9) and overweight BMI categories (2.2 kg, 95% CI: 1.1 to 3.2). Conclusions BMI category is a key factor in the extent of post-cessation weight gain, with normal and overweight recent quitters gaining significant amounts of weight.
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Memon A, Barber J, Rumsby E, Parker S, Mohebati L, de Visser RO, Venables S, Fairhurst A, Lawson K, Sundin J. What factors are important in smoking cessation and relapse in women from deprived communities? A qualitative study in Southeast England. Public Health 2016; 134:39-45. [PMID: 26920856 DOI: 10.1016/j.puhe.2016.01.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 01/13/2016] [Accepted: 01/15/2016] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Women are relatively more susceptible to smoking-related diseases and find it more difficult to quit; however, little research exists on factors associated with smoking cessation and relapse in women. We examined attitudes towards and perceptions of factors associated with smoking cessation and relapse in women from deprived communities. STUDY DESIGN Qualitative interview study. METHODS Participants included eleven women, smokers and ex-smokers, from disadvantaged communities in East Sussex, England, who had used the National Health Service (NHS) stop smoking service. Data were collected through a focus group and semi-structured interviews, and subjected to thematic analysis. RESULTS Participants opined that it is more difficult for women to quit smoking than men. Women felt that postcessation weight gain was inevitable and acted as a barrier to quitting. Hormonal fluctuations during the menstrual cycle and greater levels of stress were perceived as obstacles to quitting and reasons for relapse. Conversely, the women cited effects of smoking on physical appearance, oral hygiene and guilt about exposing children to passive smoke as powerful motivators to quit; and highlighted the impact of public health campaigns that focused on these factors. Views diverged on whether quitting with someone close to you is a help or hindrance. Other themes including alcohol intake, daily routine and being in the presence of smokers emerged as situational triggers of relapse. CONCLUSIONS Interventions that address women's concerns related to postcessation weight gain, hormonal fluctuations during the menstrual cycle and stress may aid with smoking cessation and reduce relapse. Public health campaigns should consider the impact of smoking on physical appearance and the effect of passive smoke on children.
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Yang M, Chen H, Johnson ML, Essien EJ, Peters RJ, Wang X, Abughosh S. Comparative Effectiveness of Smoking Cessation Medications to Attenuate Weight Gain Following Cessation. Subst Use Misuse 2016; 51:586-97. [PMID: 27007975 DOI: 10.3109/10826084.2015.1126744] [Citation(s) in RCA: 8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To compare the postcessation weight gain following the use of different FDA-approved smoking cessation medications among obese smokers. METHODS A retrospective cohort study was conducted using the General Electric (GE) electronic medical record database (2006-2011). The cohort consisted of obese adult smokers newly initiating use of an FDA-approved smoking cessation medication (i.e., bupropion vs. varenicline). The outcome variable was weight change at 3, 6, or 12 months following the first prescription. Descriptive analyses and t-tests were conducted to assess the frequency distribution of sample characteristics and their association with the postcessation weight change. Multivariate linear regression models were carried out to compare the weight change among the FDA-approved smoking cessation medications and to identify predictors of weight change at 3, 6, and 12 months after assessing the model assumptions. RESULTS The mean weight gain was 1.14 pounds (±17.26), 2.06 pounds (±18.46), and 3.06 pounds (±20.78) at 3-, 6-, and 12-month, respectively. Obese smokers who were prescribed varenicline had a mean weight gain of 1.18 pounds (±16.75), 2.14 pounds (±18.14), and 3.12 pounds (±20.89) for each follow up, while those who were prescribed bupropion had a mean weight gain of 0.23 pounds (±25.90), 0.22 pounds (±25.32), and 1.47 pounds (±17.50), respectively. Descriptive analysis showed that obese smokers taking bupropion had less weight gain than those taking varenicline at each follow up; however, this association was not statistically significant after accounting for all covariates. CONCLUSIONS While patients using bupropion gained slightly less weight compared to those using varenicline, type of smoking cessation medication was not a significant predictor of weight change in the multivariate linear regression model.
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Affiliation(s)
- Mo Yang
- a Department of Pharmaceutical Health Outcomes and Policy , University of Houston , Houston , Texas , USA
| | - Hua Chen
- a Department of Pharmaceutical Health Outcomes and Policy , University of Houston , Houston , Texas , USA
| | - Michael L Johnson
- a Department of Pharmaceutical Health Outcomes and Policy , University of Houston , Houston , Texas , USA
| | - Ekere James Essien
- a Department of Pharmaceutical Health Outcomes and Policy , University of Houston , Houston , Texas , USA
| | - Ronald J Peters
- b Center for Health Promotion and Prevention Research, University of Texas Health Science Center at Houston , Houston , Texas , USA
| | - Xin Wang
- a Department of Pharmaceutical Health Outcomes and Policy , University of Houston , Houston , Texas , USA
| | - Susan Abughosh
- a Department of Pharmaceutical Health Outcomes and Policy , University of Houston , Houston , Texas , USA
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Køster-Rasmussen R, Permin CA, Siersma V, Henriksen JE, Heitmann BL, Heldgaard PE, de Fine Olivarius N. Back on track-Smoking cessation and weight changes over 9 years in a community-based cohort study. Prev Med 2015; 81:320-5. [PMID: 26441298 DOI: 10.1016/j.ypmed.2015.09.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 08/24/2015] [Accepted: 09/27/2015] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To examine the impact of smoking cessation on body weight compared with normal long-term weight development. METHODS Of 1970 adults (20-69 years) in a rural town in Denmark invited to take part in the study in 1998-2000, 1374 (70%) participated. After 9 years, 1121 participated in the follow-up study. Weight changes were compared using multivariable regression models. RESULTS The mean baseline weight of never-smokers was 76.4 kg (SD 16.0). The adjusted weight of smokers and ex-smokers differed by -4.2 kg (95% CI: -5.9, -2.6), and -0.7 kg (95% CI: -2.5, 1.1), respectively. The adjusted weight gain rate (kg/year) of never-smokers, smokers, and ex-smokers was 0.213, 0.127, and 0.105, respectively. The absolute post cessation weight gain (PCWG) was 5.0 kg (SD 7.0), and the adjusted PCWG was 2.8 kg (95% CI: 1.7, 3.9) compared with never-smokers, and 3.5 kg (95% CI: 2.3, 4.8) compared with smokers. The follow-up weight did not differ between quitters and never-smokers (0.1 kg; 95% CI: -2.4, 2.6). CONCLUSION Smokers weigh less than never-smokers. By quitting, they gain weight and end up weighing the same as comparable never-smokers. Weight gain rates differ by smoking status. Consequently, PCWG depends on the length of follow-up. Our graphical model indicates that smoking cessation results in a return to normal weight development.
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Tian J, Venn A, Otahal P, Gall S. The association between quitting smoking and weight gain: a systematic review and meta-analysis of prospective cohort studies. Obes Rev 2015; 16:883-901. [PMID: 26114839 DOI: 10.1111/obr.12304] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [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: 03/02/2015] [Revised: 05/05/2015] [Accepted: 05/14/2015] [Indexed: 12/28/2022]
Abstract
This systematic review and meta-analysis aimed to quantify weight gain after smoking cessation and the difference in weight gain between quitters and continuing smokers. Five electronic databases were searched before January 2015. Population-based prospective cohort studies were included if they recorded the weight change of adult smokers from baseline (before smoking cessation) to follow-up (at least 3 months after cessation). Thirty-five cohort studies were identified, including 63,403 quitters and 388,432 continuing smokers. The mean weight gain was 4.10 kg (95% confidence interval [CI]: 2.69, 5.51) and body mass index (BMI) gain was 1.14 kg m(-2) (95% CI: 0.50, 1.79) among quitters. Compared with continuing smoking, quitting smoking was significantly associated with absolute weight (adjusted mean difference [MD]: 2.61 kg; 95% CI: 1.61, 3.60) and BMI gain (adjusted MD: 0.63 kg m(-2) ; 95% CI: 0.46, 0.80). Subgroup analyses using geographic region found that the difference in weight gain was considerably greater in studies from North America than from Asia. Follow-up length was identified as a source of heterogeneity, such that studies with longer follow-up showed greater difference in weight gain. Effective strategies are needed to encourage smokers to quit irrespective of potential weight gain and to help quitters avoid excess weight gain.
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Affiliation(s)
- J Tian
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - A Venn
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - P Otahal
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - S Gall
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
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Copeland AL, McVay MA, Martin PD, Rash CJ, Kendzor DE, Baillie LE, Spears CA, Geiselman PJ. Smoking relapse and weight gain prevention program for postmenopausal weight-concerned women: A pilot study. Eat Behav 2015; 18:107-14. [PMID: 26026615 DOI: 10.1016/j.eatbeh.2015.05.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/13/2015] [Accepted: 05/11/2015] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Postmenopausal women have substantial concerns about weight gain when quitting smoking, which may contribute smoking relapse. There is a need for smoking cessation and weight gain prevention programs effective in this population. METHODS Two formats of a smoking cessation/weight gain prevention follow-up intervention in postmenopausal weight concerned women were compared: a minimally-tailored group format and a highly tailored, multidisciplinary individual format. Effects on sustained abstinence and postcessation weight gain were assessed. Postmenopausal smokers received 6 sessions of behavioral counseling over a 2-week period, 8weeks of the nicotine transdermal patch, and subsequent random assignment to receive follow-up relapse prevention sessions at 1, 3, 8, and 16weeks postcessation in either group or individual format. RESULTS The sample (N=98) was 67% Caucasian and 33% African-American. Age: m=52.3 (7.8) years, follicle stimulating hormone: m=42.6 (25.7), body mass index (BMI): m=27.4 (6.2), daily smoking rate: m=20.3 (11.5), for m=29.4 (10.7) years, Fagerström Test for Nicotine Dependence (FTND): m=6.4 (2.1), and carbon monoxide: m=23.8 (13.0) ppm. Abstinence rates in the group condition were significantly higher at 8weeks posttreatment. Group format significantly predicted abstinence rates at 8 and 16weeks posttreatment, even while controlling for age, race, BMI, CPD, years smoking, FTND, and weight concern. Weight concern predicted postcessation weight gain at 8 and 16weeks posttreatment. CONCLUSIONS Results indicate that smoking cessation programs for postmenopausal women may best be delivered in a group format and that postcessation weight concerns be dealt with prior to a quit date.
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Veldheer S, Yingst J, Zhu J, Foulds J. Ten-year weight gain in smokers who quit, smokers who continued smoking and never smokers in the United States, NHANES 2003-2012. Int J Obes (Lond) 2015; 39:1727-32. [PMID: 26155918 DOI: 10.1038/ijo.2015.127] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/25/2015] [Accepted: 07/02/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND/OBJECTIVES Weight gain after quitting smoking is a common concern for smokers and can discourage quit attempts. The purpose of this analysis was to describe the long-term weight gain, smoking cessation attributable (SCA) weight gain and describe their relationship to cigarette consumption and body mass index (BMI) 10 years ago in a contemporary, nationally representative sample of smokers who continued to smoke and those who quit. SUBJECTS/METHODS In all, 12,204 adults ⩾36 years old were selected from the 2003-2012 National Health and Nutrition Examination Survey (NHANES). Ten-year weight gain for never, continuing and former smokers (who quit 1-10 years ago) was calculated by body mass index (BMI) 10 years ago and cigarettes per day (CPD). SCA weight gain was calculated by taking the difference between the adjusted mean 10-year weight gain of former smokers and that of continuing smokers. RESULTS Mean 10-year weight gain among continuing smokers was 3.5 versus 8.4 kg among former smokers; the SCA weight gain was 4.9 kg. After Bonferroni correction, there was no significant difference in overall weight gain between continuing and former smokers of 1-14 CPD, and SCA weight gain was lowest in this group (2.0 kg, confidence interval (CI): 0.3, 3.7). SCA weight gain was highest for former smokers of ⩾25 CPD (10.3 kg, CI: 7.4, 13.2) and for those who were obese (7.1 kg, CI: 2.9, 11.3) mostly because of lower than average weight gain or weight loss among continuing smokers in these groups. CONCLUSIONS In a current, nationally representative sample, baseline BMI and CPD were important factors that contributed to the magnitude of long-term weight gain following smoking cessation. Light to moderate smokers (<15 CPD) experienced little SCA weight gain, whereas heavy smokers (⩾25 CPD) and those who were obese before quitting experienced the most.
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Affiliation(s)
- S Veldheer
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA, USA
| | - J Yingst
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA, USA
| | - J Zhu
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA, USA
| | - J Foulds
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA, USA
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Abstract
The body mass index (BMI) is the metric currently in use for defining anthropometric height/weight characteristics in adults and for classifying (categorizing) them into groups. The common interpretation is that it represents an index of an individual's fatness. It also is widely used as a risk factor for the development of or the prevalence of several health issues. In addition, it is widely used in determining public health policies.The BMI has been useful in population-based studies by virtue of its wide acceptance in defining specific categories of body mass as a health issue. However, it is increasingly clear that BMI is a rather poor indicator of percent of body fat. Importantly, the BMI also does not capture information on the mass of fat in different body sites. The latter is related not only to untoward health issues but to social issues as well. Lastly, current evidence indicates there is a wide range of BMIs over which mortality risk is modest, and this is age related. All of these issues are discussed in this brief review.
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Affiliation(s)
- Frank Q Nuttall
- is a full professor at the University of Minnesota, Minneapolis, and chief of the Endocrine, Metabolic and Nutrition Section at the Minneapolis VA Medical Center, Minnesota. His PhD degree is in biochemistry. He has more than 250 scientific publications in peer-reviewed journals, and he is the winner of numerous prestigious academic and scientific awards, including the 2014 Physician/Clinician Award of the American Diabetes Association
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Abstract
Despite unequivocal evidence that smoking cessation is beneficial in terms of survival, there is at present no firm evidence that smoking cessation programs save lives. While they do increase quit rates, the collective evidence from randomized trials is inconclusive with respect to long-term survival. Withdrawal symptoms and the potential for harm when a subjects relapses after a prolonged period of cessation (e.g., 5+ years) might mitigate some or all of the benefits of the sustained quitters. This paper will review the key survival epidemiology and argue for a large randomized field trial of about 30,000 subjects, followed personally for 5 years and collectively for 15 years through the National Death Index. The intervention should be personalized, but reproducible through a treatment assignment algorithm. Personal coaching should be a major part of the intervention. Important short-term data on healthcare utilization should also be collected. Strong financial motivation for quitting (or prevention of smoking in the first place) is also presented. This paper is intended to motivate a large collective effort amongst the US Clinical and Translational Science Awardees to design the intervention and bring together the interested players to conduct the study.
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Affiliation(s)
- Jonathan J Shuster
- Department of Health Outcomes and Policy, University of Florida, Gainesville, Florida, USA
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al'Absi M, Lemieux A, Nakajima M, Hatsukami DK, Allen S. Circulating leptin and pain perception among tobacco-dependent individuals. Biol Psychol 2015; 107:10-5. [PMID: 25720946 DOI: 10.1016/j.biopsycho.2015.02.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 05/31/2014] [Revised: 02/15/2015] [Accepted: 02/16/2015] [Indexed: 12/21/2022]
Abstract
Recent preclinical evidence suggests that leptin may modulate the stress response and may increase nociception. In this study, we examined for the first time the extent to which cigarette smoking is associated with leptin levels during an extended rest period and in response to noxious stimuli. Repeated blood samples were collected during a laboratory session from smokers and nonsmokers and assayed for leptin. Pain experiences, as well as neuroendocrine and cardiovascular measures, were collected across cold pressor and thermal heat pain tests. Both analysis of variance and correlations confirmed that smokers demonstrated dysregulations in leptin responsivity and association with pain relative to nonsmokers. The flat pattern of leptin release and the weak associations of this hormone with pain in smokers suggest a long-term effect of tobacco dependence on this regulatory hormone. In light of leptin's influence on reward pathways, further investigation of leptin's involvement in nicotine dependence is warranted.
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Affiliation(s)
- Mustafa al'Absi
- University of Minnesota Medical School, Duluth, MN, USA; Department of Psychiatry, University of Minnesota, Twin Cities, Minneapolis, MN, USA; Department of Family Medicine and Community Health, University of Minnesota, Twin Cities, Minneapolis, MN, USA.
| | | | | | - Dorothy K Hatsukami
- Department of Psychiatry, University of Minnesota, Twin Cities, Minneapolis, MN, USA
| | - Sharon Allen
- Department of Family Medicine and Community Health, University of Minnesota, Twin Cities, Minneapolis, MN, USA
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Abstract
UNLABELLED The intestinal microbiota (previously referred to as "intestinal flora") has entered the focus of research interest not only in microbiology but also in medicine. Huge progress has been made with respect to the analysis of composition and functions of the human microbiota. An "imbalance" of the microbiota, frequently also called a "dysbiosis," has been associated with different diseases in recent years. Crohn's disease and ulcerative colitis as two major forms of inflammatory bowel disease, irritable bowel syndrome (IBS) and some infectious intestinal diseases such as Clostridium difficile colitis feature a dysbiosis of the intestinal flora. Whereas this is somehow expected or less surprising, an imbalance of the microbiota or an enrichment of specific bacterial strains in the flora has been associated with an increasing number of other diseases such as diabetes, metabolic syndrome, non-alcoholic fatty liver disease or steatohepatitis and even psychiatric disorders such as depression or multiple sclerosis. It is important to understand the different aspects of potential contributions of the microbiota to pathophysiology of the mentioned diseases. CONCLUSION With the present manuscript, we aim to summarize the current knowledge and provide an overview of the different concepts on how bacteria contribute to health and disease in animal models and-more importantly-humans. In addition, it has to be borne in mind that we are only at the very beginning to understand the complex mechanisms of host-microbial interactions.
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Affiliation(s)
- Luc Biedermann
- Division of Gastroenterology and Hepatology, University Hospital Zürich, Rämistrasse 100, 8091, Zürich, Switzerland,
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Stice E, Marti CN, Rohde P, Shaw H. Young woman smokers gain significantly more weight over 2-year follow-up than non-smokers. How Virginia doesn't slim. Appetite 2014; 85:155-9. [PMID: 25433235 DOI: 10.1016/j.appet.2014.11.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 06/29/2014] [Revised: 10/17/2014] [Accepted: 11/23/2014] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Although young women often report smoking for weight control purposes, no prospective study has tested whether smokers subsequently gain less weight over time than non-smokers. As this is an important lacuna because smoking results in greater mortality than obesity, the present study addresses this question. METHOD Female college students (N = 398; M age = 18.4, SD =0.6; M BMI = 23.7, SD =4.3) recruited for a body acceptance intervention trial provided data on smoking behavior and had their body mass measured at baseline and at 1-mo, 6-mo, 1-yr, and 2-yr follow-ups. RESULTS Counter to the belief that smoking is an effective weight control strategy, baseline smokers (n = 29) gained significantly more weight (r = .29) than baseline non-smokers (n = 304), controlling for baseline BMI, parental obesity status, socio-economic status, and intervention condition; over 2-yr follow-up smokers gained 2.9 kg versus 0.9 kg for non-smokers. Descriptive data indicated that weight gain was greater for young women who quit smoking during follow-up (n = 13; M = 4.8 kg) than for persistent smokers (n = 16; M = 1.4 kg), though both groups gained more weight than non-smokers. CONCLUSIONS RESULTS challenge the widely held belief that smoking is an effective weight control strategy, ironically suggesting that smokers gain more weight than non-smokers during young adulthood, though non-experimental prospective studies do not establish causal relations and future research with larger representative samples is needed.
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Affiliation(s)
- Eric Stice
- Oregon Research Institute, 1776 Millrace Drive, Eugene, Oregon 97403, United States.
| | - C Nathan Marti
- Oregon Research Institute, 1776 Millrace Drive, Eugene, Oregon 97403, United States
| | - Paul Rohde
- Oregon Research Institute, 1776 Millrace Drive, Eugene, Oregon 97403, United States
| | - Heather Shaw
- Oregon Research Institute, 1776 Millrace Drive, Eugene, Oregon 97403, United States
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Gennuso KP, Thraen-Borowski KM, Schlam TR, LaRowe TL, Fiore MC, Baker TB, Colbert LH. Smokers' physical activity and weight gain one year after a successful versus unsuccessful quit attempt. Prev Med 2014; 67:189-92. [PMID: 25091879 PMCID: PMC4457287 DOI: 10.1016/j.ypmed.2014.07.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 05/22/2014] [Revised: 07/21/2014] [Accepted: 07/23/2014] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To examine whether smokers' physical activity is related to weight change following a quit attempt. METHOD Data were analyzed for participants (n=683) of a randomized controlled trial comparing the efficacy of different smoking cessation pharmacotherapies (Wisconsin, 2005-2008). Activity (assessed via pedometry) and body weight were measured in the days surrounding the quit day and again one year later, at which time 7-day point-prevalence abstinence from smoking was assessed. We examined the effects of quitting, physical activity, and their interaction, on a one-year weight change with relevant covariate adjustment. RESULTS Participants were predominantly female (57%), 46 ± 11 years of age (mean ± SD), and took 7544 ± 3606 steps/day at baseline. Of those who quit, 87% gained weight. A main effect was found for quitting (p<0.001), but not physical activity (p=0.06). When pattern of activity was examined across the 1-year study period, quitters who decreased their physical activity had significantly greater weight gain than quitters who increased their physical activity (p<0.01) or maintained a high level of activity (p=0.02). CONCLUSION Physical activity is associated with an attenuation of the weight gain that often occurs after quitting smoking.
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Affiliation(s)
- Keith P Gennuso
- Department of Population Health Sciences, University of Wisconsin-Madison, 507A Warf Office Building, 610 Walnut St, Madison, WI 53726, USA.
| | - Keith M Thraen-Borowski
- Department of Kinesiology, University of Wisconsin-Madison, 2057 Gymnasium-Natatorium, 2000 Observatory Dr, Madison, WI 53706, USA
| | - Tanya R Schlam
- Center for Tobacco Research and Intervention, Department of Medicine, University of Wisconsin-Madison, 1930 Monroe St, Suite 200, Madison, WI 53711, USA; Department of Family Medicine, University of Wisconsin-Madison, 1930 Monroe St, Suite 200, Madison, WI 53711, USA
| | - Tara L LaRowe
- Department of Family Medicine, University of Wisconsin-Madison, 1100 Delaplaine Ct, Madison, WI 53714, USA
| | - Michael C Fiore
- Center for Tobacco Research and Intervention, Department of Medicine, University of Wisconsin-Madison, 1930 Monroe St, Suite 200, Madison, WI 53711, USA; Department of Family Medicine, University of Wisconsin-Madison, 1930 Monroe St, Suite 200, Madison, WI 53711, USA
| | - Timothy B Baker
- Center for Tobacco Research and Intervention, Department of Medicine, University of Wisconsin-Madison, 1930 Monroe St, Suite 200, Madison, WI 53711, USA; Department of Family Medicine, University of Wisconsin-Madison, 1930 Monroe St, Suite 200, Madison, WI 53711, USA
| | - Lisa H Colbert
- Department of Kinesiology, University of Wisconsin-Madison, 2057 Gymnasium-Natatorium, 2000 Observatory Dr, Madison, WI 53706, USA
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Gonseth S, Locatelli I, Bize R, Nusslé S, Clair C, Pralong F, Cornuz J. Leptin and smoking cessation: secondary analyses of a randomized controlled trial assessing physical activity as an aid for smoking cessation. BMC Public Health 2014; 14:911. [PMID: 25187423 PMCID: PMC4165916 DOI: 10.1186/1471-2458-14-911] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [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: 09/09/2013] [Accepted: 08/29/2014] [Indexed: 11/10/2022] Open
Abstract
Background Smokers have a lower body weight compared to non-smokers. Smoking cessation is associated with weight gain in most cases. A hormonal mechanism of action might be implicated in weight variations related to smoking, and leptin might be implicated. We made secondary analyses of an RCT, with a hypothesis-free exploratory approach to study the dynamic of leptin following smoking cessation. Methods We measured serum leptin levels among 271 sedentary smokers willing to quit who participated in a randomized controlled trial assessing a 9-week moderate-intensity physical activity intervention as an aid for smoking cessation. We adjusted leptin for body fat levels. We performed linear regressions to test for an association between leptin levels and the study group over time. Results One year after smoking cessation, the mean serum leptin change was +3.23 mg/l (SD 4.89) in the control group and +1.25 mg/l (SD 4.86) in the intervention group (p of the difference < 0.05). When adjusted for body fat levels, leptin was higher in the control group than in the intervention group (p of the difference < 0.01). The mean weight gain was +2.91 (SD 6.66) Kg in the intervention and +3.33 (SD 4.47) Kg in the control groups, respectively (p not significant). Conclusions Serum leptin levels significantly increased after smoking cessation, in spite of substantial weight gain. The leptin dynamic might be different in chronic tobacco users who quit smoking, and physical activity might impact the dynamic of leptin in such a situation. Clinical trial registration number NCT00521391 Electronic supplementary material The online version of this article (doi:10.1186/1471-2458-14-911) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Semira Gonseth
- Department of Epidemiology and Biostatistics, University of California San Francisco, 1450 3rd Street, San Francisco, CA, USA.
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