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1.
Cerebellum ; 2023 Jun 23.
Artigo em Inglês | MEDLINE | ID: mdl-37351730

RESUMO

A berrant connectivity in the cerebellum has been found in psychotic conditions such as schizophrenia corresponding with cognitive and motor deficits found in these conditions. Diffusion differences in the superior cerebellar peduncles, the white matter connecting the cerebellar circuitry to the rest of the brain, have also been found in schizophrenia and high-risk states. However, white matter diffusivity in the peduncles in individuals with sub-threshold psychotic experiences (PEs) but not reaching the threshold for a definitive diagnosis remains unstudied. This study investigates the cerebellar peduncles in adolescents with PEs but no formal psychiatric diagnosis.Sixteen adolescents with PEs and 17 age-matched controls recruited from schools underwent High-Angular-Resolution-Diffusion neuroimaging. Following constrained spherical deconvolution whole-brain tractography, the superior, inferior and middle peduncles were isolated and virtually dissected out using ExploreDTI. Differences for macroscopic and microscopic tract metrics were calculated using one-way between-group analyses of covariance controlling for age, sex and estimated Total Intracranial Volume (eTIV). Multiple comparisons were corrected using Bonferroni correction.A decrease in fractional anisotropy was identified in the right (p = 0.045) and left (p = 0.058) superior cerebellar peduncle; however, this did not survive strict Bonferroni multiple comparison correction. There were no differences in volumes or other diffusion metrics in either the middle or inferior peduncles.Our trend level changes in the superior cerebellar peduncle in a non-clinical sample exhibiting psychotic experiences complement similar but more profound changes previously found in ultra-high-risk individuals and those with psychotic disorders. This suggests that superior cerebellar peduncle circuitry perturbations may occur early along in the psychosis spectrum.

2.
Langenbecks Arch Surg ; 408(1): 43, 2023 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-36656465

RESUMO

PURPOSE: Revisional bariatric surgeries following laparoscopic sleeve gastrectomy (LSG) have demonstrated a dramatic increase worldwide. Recently, one-anastomosis gastric bypass (OAGB) has become a contender as an appropriate revisional procedure; however, no long-term data currently exist on the effectiveness of it as a revisional surgery post-LSG. METHODS: A retrospective analysis was performed on all patients who underwent LSG at a public hospital in Kuwait from 2008 to 2017. A list was obtained of those who underwent revisional OAGB surgery after initial LSG, after which a phone survey was performed and demographics were analyzed. RESULTS: A total of 29 patients underwent revisional OAGB post-initial LSG, of which 89.7% were female. Prior to LSG, the mean weight of the patients was 127.5 kg, and the mean BMI was 49.0 kg/m2. The mean weight loss after initial LSG was 43.8 kg, while the average duration until patients underwent revisional OAGB was 5.3 years. The cause for revision was weight regain (86.2%) or inadequate weight loss (13.8%). Prior to undergoing revisional OAGB, the weight and BMI of the patients was 110.9 kg and 42.4 kg/m2, respectively. Revisional OAGB demonstrated a %excess weight loss of 14.5%, 31.9%, 48.0%, 56.3%, 57.2%, and 54.7% at 2 weeks, 3 months, 6 months, 1 year, 4 years, and 5 years, respectively. Twelve morbidities were reported during the follow-up period. CONCLUSION: Revisional bariatric surgery is technically demanding and may be associated with a high complication rate. However, OAGB as a revisional procedure has proven to be safe and effective in the long-term outcomes of revisional OAGB patients post-LSG.


Assuntos
Derivação Gástrica , Laparoscopia , Obesidade Mórbida , Humanos , Feminino , Masculino , Derivação Gástrica/efeitos adversos , Derivação Gástrica/métodos , Obesidade Mórbida/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Laparoscopia/métodos , Reoperação/efeitos adversos , Gastrectomia/efeitos adversos , Gastrectomia/métodos , Redução de Peso
3.
East Mediterr Health J ; 28(11): 813-822, 2022 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-36515445

RESUMO

Background: Tobacco use among women in Qatar is currently low. However, the risk of exposure to second-hand tobacco smoke among them is a pressing concern because of the high prevalence of tobacco use by men. Aims: To describe the prevalence and risk factors for second-hand tobacco smoke exposure at home and at workplaces, schools, cafes, and restaurants in Qatar. Methods: We analysed data from a population-based survey of 7921 adults aged ≥ 18 years, conducted in Qatar between March and December 2019. The study used multilevel cluster selection and comprised government employees and university students. Results: Among the participants, 19.3% (n = 1219) reported that smoking was allowed in their homes, 3.1% (n = 196) said it was allowed in the workplace or school, and 3.3% (n = 204) said it was allowed in cafes and restaurants. Among the women, 22.8% (n = 589) allowed smoking inside their homes, including 51.8% (n = 130) of tobacco users and 38.5% (n = 553) of those who lived with a tobacco user. Living with and being a tobacco user significantly predicted the likelihood of reporting second-hand tobacco smoke at home. Conclusion: Second-hand tobacco smoke exposure in the home is a health concern for women and children in Qatar. This study provides baseline data for tobacco control policies and programmes, particularly in relation to the promotion of smoke-free home environments.


Assuntos
Poluição por Fumaça de Tabaco , Adulto , Criança , Masculino , Feminino , Humanos , Catar/epidemiologia , Uso de Tabaco , Instituições Acadêmicas , Prevalência
4.
Tob Induc Dis ; 20: 61, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35836909

RESUMO

INTRODUCTION: Waterpipe smoking is common in the Eastern Mediterranean Region and is becoming more prevalent in Qatar. To better plan waterpipe smoking control strategies we aimed to: 1) determine the prevalence of waterpipe smoking and explore its patterns in Qatar; 2) describe the knowledge, attitudes, and practices related to smoking behaviors; 3) recognize locations of waterpipe smoking and symptoms experienced during waterpipe sessions; and 4) evaluate the frequency of waterpipe smoking and the initiation age. METHODS: We analyzed the data of a 7921 population-based survey of adults aged ≥18 years (nationals and expatriates), conducted in Qatar between March and December 2019. Out of 7105 surveys collected, 6904 were complete and included in the analysis. RESULTS: Of the 6904, 570 (8.3%; 95% CI: 7.7-9.0) were waterpipe tobacco smokers, 425 (10.6%) males and 145 (5.1%) females. The highest prevalence of waterpipe smoking was reported among people aged 18-24 years (10.6%). Of the 575 waterpipe smokers, 56.3% (n=324) were exclusive waterpipe smokers. Use of other tobacco products among waterpipe smokers was higher among Qataris (52.3%) than expatriates (37.7%). Waterpipe cafés were the most common location for waterpipe smoking, however, females preferred restaurants; 83.3% reported that waterpipe smoking is harmful, while 39.3% considered that it is less harmful than cigarette smoking. CONCLUSIONS: Waterpipe smoking prevalence is considerably high in Qatar, the second form of tobacco used. The formulation of new policies and enforcement of regulatory restrictions on waterpipe smoking are essential to reduce its uptake. Expansion in tobacco cessation services for women and poly-tobacco users is needed.

5.
Prev Med Rep ; 28: 101832, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35607613

RESUMO

The effects of smoking on COVID-19 are controversial. Some studies show no link between smoking and severe COVID-19, whereas others demonstrate a significant link. This cross-sectional study aims to determine the prevalence of tobacco use among COVID-19 patients, examine the relationship between tobacco use and hospitalized COVID-19 (non-severe and severe), and quantify its risk factors. A random sample of 7430 COVID-19 patients diagnosed between 27 February-30 May 2020 in Qatar were recruited over the telephone to complete an interviewer-administered questionnaire. The prevalence of tobacco smoking in the total sample was 11.0%, with 12.6% among those quarantined, 5.7% among hospitalized patients, and 2.5% among patients with severe COVID-19. Smokeless tobacco and e-cigarette use were reported by 3.2% and 0.6% of the total sample, respectively. We found a significant lower risk for hospitalization and severity of COVID-19 among current tobacco smokers (p < 0.001) relative to non-smokers (never and ex-smokers). Risk factors significantly related to an increased risk of being hospitalized with COVID-19 were older age (aged 55 + ), being male, non-Qatari, and those with heart disease, hypertension, diabetes, asthma, cancer, and chronic renal disease. Smokeless tobacco use, older age (aged 55 + ), being male, non-Qatari, previously diagnosed with heart disease and diabetes were significant risk factors for severe COVID-19. Our data suggests that only smokeless tobacco users may be at an increased risk for severe disease, yet this requires further investigation as other studies have reported smoking to be associated with an increased risk of greater disease severity.

7.
PLoS One ; 16(4): e0250065, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33857248

RESUMO

Tobacco use is a serious public health concern as it causes various deleterious health problems. The aim of this study was to determine the prevalence of tobacco use and various types of tobacco used among a population-based sample of adults 18 years and above in Qatar (residents and expatriates). The study also attempted to assess tobacco use initiation age, tobacco dependency, and to identify factors associated with current tobacco use. This 2019 cross-sectional study was conducted among governmental employees and University students in Qatar using cluster sampling methodology. Study participants completed a self-administered, country-adapted summarized version of the Global Adult Tobacco Survey. 25.2% (n = 1741; N = 6904) of the surveyed sample reported current tobacco use. 21.5% (n = 1481) smoked tobacco (cigarettes, waterpipe, medwakh and cigar) concomitant with other forms of tobacco and only 1.0% (n = 69) were using other forms of tobacco (electronic cigarettes, smokeless tobacco and heat-not-burn tobacco products) and 2.7% (n = 191) did not mention the type of tobacco products used by them. Of the 1550 tobacco users, 42.8% were cigarette smokers, 20.9% waterpipe, 3.2% medwakh (Arabic traditional pipe) and 0.7% cigar. Moreover, 1.9% reported smokeless tobacco use (sweika), 2.0% electronic cigarette use, and 0.3% heat-not-burn tobacco use. The mean age for smoking initiation was 19.7±5.3 (Qataris 18.6±4.8 and non-Qataris 20.3±5.6). Using multivariable logistic regression, significant association was observed between tobacco use and gender, nationality, age, monthly income, living with a smoker, and self-rated health. This large population-based cross-sectional survey provides the first evidence for the prevalence of different types of tobacco use including medwakh smoking among adults (Qataris and non-Qataris) 18 years and above in Qatar. This can serve as a baseline for future research studies on the topic. Based on the review of previous and current tobacco survey findings, it is evident that the prevalence of tobacco use (current) in Qatar has declined suggesting that tobacco control measures implemented by the country have been effective in reducing tobacco consumption.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Produtos do Tabaco , Uso de Tabaco/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Catar/epidemiologia , Nicotiana , Adulto Jovem
8.
BMJ Open ; 11(4): e044379, 2021 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-33795305

RESUMO

OBJECTIVES: One effective approach of tobacco control is to encourage the role and the participation of healthcare workers in the prevention efforts against tobacco use. This study aimed to determine the prevalence of tobacco use among governmental healthcare workers in Qatar, to assess healthcare workers' knowledge, attitude and practice of tobacco cessation and to predict factors associated with above average tobacco cessation practice scores. DESIGN: A cross-sectional survey study was conducted among healthcare workers working in Hamad Medical Corporation and Primary Healthcare Centres in Qatar using a self-administered online questionnaire in 2019. SETTING: Hamad Medical Corporation and Primary Healthcare Centres in Qatar. PARTICIPANTS: Governmental healthcare workers aged 18 years and above (n=7214). RESULTS: The response rate of our online survey was 20.6% (7214/35 000). Of the 7214 healthcare workers, 16.3% (n=1178) were current tobacco users. In particular, the prevalence of tobacco use among physicians was 11.0%. Fifty-two per cent of healthcare workers (n=2338) attained an average knowledge score (12-17), 71.8% (n=3094) attained positive attitude scores (8-12) and 57.1% (n=3052) attained above average practice scores (12-26). Among the different professions, physicians were having the highest mean knowledge (15.3±4.7), attitude (9.4±1.9) and practice (13.7±6.1) scores. Multivariate analysis showed that having good knowledge (adjusted OR (AOR)=2.8; p<0.0001) and training (AOR=2.4; p<0.0001) were the strongest factors associated positively with above average tobacco cessation practice scores. CONCLUSIONS: Healthcare workers in Qatar have a relatively similar prevalence of tobacco use than earlier studies with no significant increase. Investing more in training programmes for healthcare workers are needed to root out this negative behaviour and to increase their skills to assist users to quit.


Assuntos
Abandono do Uso de Tabaco , Adolescente , Estudos Transversais , Conhecimentos, Atitudes e Prática em Saúde , Pessoal de Saúde , Humanos , Prevalência , Catar/epidemiologia , Inquéritos e Questionários
9.
East Mediterr Health J ; 26(1): 110-115, 2020 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-32043553

RESUMO

The report aimed to review and assess the status of tobacco cessation services in the Eastern Mediterranean Region (EMR). Nearly 70% of people in the Region have legal access to nicotine-replacement therapy but for 77% of these people the costs of the treatment are not covered. Bupropion and Varenicline are legally available in 10 and 11 EMR countries respectively. Just under 50% of people in the Region have access to at least some cessation support in primary health care facilities. Around 32% of people have access to a national toll-free quit line. Costs for cessation services are fully covered in few EMR countries; however, cessation services in the Region must be improved. Member States should aim to increase the availability of, and financial support for, cessation treatments and support, which should be prioritized in primary health care facilities.


Assuntos
Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Agentes de Cessação do Hábito de Fumar/uso terapêutico , Abandono do Hábito de Fumar/métodos , África do Norte , Bupropiona/provisão & distribuição , Bupropiona/uso terapêutico , Humanos , Oriente Médio , Atenção Primária à Saúde/estatística & dados numéricos , Agentes de Cessação do Hábito de Fumar/economia , Agentes de Cessação do Hábito de Fumar/provisão & distribuição , Vareniclina/provisão & distribuição , Vareniclina/uso terapêutico
10.
Trials ; 20(1): 25, 2019 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-30621772

RESUMO

BACKGROUND: Tobacco use is presently responsible for the death of over seven million people across the world. In Qatar, it is one of the main causes of premature deaths and preventable diseases. To reduce tobacco use, Qatar has ratified the World Health Organization (WHO)'s Framework Convention on Tobacco Control (FCTC) and has implemented many tobacco-control initiatives. In spite of these measures, tobacco use is still considered a public health threat in Qatar. Pharmacists practicing in retail/community pharmacy settings are often the first port of call for individuals requiring general health advice. Evidence has proven that they have a pivotal role in health promotion and disease prevention including tobacco cessation. However, pharmacists in Qatar are not actively involved in tobacco control and many have not received any education or training about smoking cessation counseling in the past. In an effort to build the capacity of pharmacists towards tobacco control in Qatar, the aim of the proposed study is to design, implement, and evaluate an intensive education program on tobacco dependence treatment for pharmacists in Qatar. METHODS/DESIGN: The study will be a prospective randomized controlled trial comparing an intensive tobacco-related education program versus non-tobacco-related training on pharmacists' tobacco-use-related knowledge, attitudes, self-efficacy, and skills. Community pharmacists practicing in Qatar will be eligible for participation in the study. A random sample of pharmacists will be selected for participation. Consenting participants will be randomly allocated to intervention or control groups. Participants in the intervention group will receive an intensive education program delivered by a multi-disciplinary group of educators, researchers, and clinicians with expertise in tobacco cessation. A short didactic session on a non-tobacco-related topic will be delivered to pharmacists in the control group. The study has two primary outcomes: post-intervention tobacco-related knowledge and post-intervention skills for tobacco cessation assessed using a multiple-choice-based evaluation instrument and an Objective Structured Clinical Examination (OSCE), respectively. The secondary study outcomes are post-intervention attitudes towards tobacco cessation and self-efficacy in tobacco-cessation interventions assessed using a survey instrument. An additional secondary study outcome is the post-intervention performance difference in relation to tobacco-cessation skills in the practice setting assessed using the simulated client approach. DISCUSSION: If demonstrated to be effective, this education program will be considered as a model that Qatar and the Middle East region can apply to overcome the burden of tobacco-use disorder. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT03518476 . Registered on 8 May 2018. Version 1/22 June 2018.


Assuntos
Serviços Comunitários de Farmácia , Educação Continuada em Farmácia , Farmacêuticos , Abandono do Hábito de Fumar/métodos , Tabagismo/prevenção & controle , Interpretação Estatística de Dados , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Avaliação de Resultados em Cuidados de Saúde , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de Pesquisa , Tamanho da Amostra
11.
Obes Surg ; 28(8): 2197-2202, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29520703

RESUMO

INTRODUCTION: Laparoscopic sleeve gastrectomy (LSG) has become the most performed bariatric procedure as of 2015. However, inadequate weight loss may present the need for revisional procedures. OBJECTIVES: The objective of this study was to analyze the efficacy of single-anastomosis gastric bypass (SAGB) in attaining successful weight loss following an initial LSG. METHODS: A retrospective analysis was performed on all patients who underwent LSG at Amiri Hospital, Kuwait from 2008 to 2017. A list was obtained of those who underwent revisional SAGB surgery after initial LSG, and their demographics were analyzed. RESULTS: A total of 31 patients underwent revisional SAGB bariatric surgery after initial LSG, of which 87.1% were female. Prior to LSG, the mean weight of the patients was 127.5 kg and the mean BMI was 49.0 kg/m2. The mean weight loss after initial LSG was 43.8 kg, while the average duration until patients underwent revisional SAGB was 5.1 years. The cause for revision was weight regain (86.2%), inadequate weight loss (10.3%), or the development of a complication (reflux) (6.5%). Prior to undergoing revisional SAGB, the weight and BMI of the patients were 110.9 kg and 42.6 kg/m2, respectively. This demonstrated a %excess weight loss of 14.5, 31.9, 48.0, and 58.9% 2 weeks, 3 months, 6 months, and 1-year post-SAGB, respectively. Three (10.3%) morbidities were reported and thereafter successfully resolved. CONCLUSION: Revisional SAGB bariatric surgery is a safe and effective method in the short-term basis for the management of inadequate primary LSG.


Assuntos
Gastrectomia/efeitos adversos , Derivação Gástrica , Obesidade Mórbida/cirurgia , Reoperação/métodos , Aumento de Peso , Adulto , Anastomose Cirúrgica/métodos , Índice de Massa Corporal , Feminino , Gastrectomia/métodos , Derivação Gástrica/métodos , Humanos , Kuweit/epidemiologia , Laparoscopia/métodos , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/epidemiologia , Reoperação/efeitos adversos , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento
12.
Surg Obes Relat Dis ; 14(3): 311-317, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29305305

RESUMO

BACKGROUND: Obesity is on a continuous rise worldwide, and with it, novel bariatric procedures have emerged. The introduction of gastric balloons has opened up a nonsurgical option for patients opting for it. However, they still require some form of sedation and endoscopy for insertion and/or removal. OBJECTIVES: The Elipse balloon is a novel creation that has managed to bypass both these procedures; therefore, the investigation into its effectiveness is of importance. SETTING: Royale Hayat, Sabah, and Amiri Hospitals, Kuwait. METHODS: This is a multicenter, prospective analysis of all patients who underwent the Elipse balloon insertion. For the duration of 4 months, weight, body mass index, and the occurrence of adverse events was documented. RESULTS: A total of 135 patients were included, with a mean age of 33.5 years. At the 4-month mark, the mean weight of the patients showed a drop of 13.0 kg (P = .000), and the mean body mass index showed a drop of 4.9 units (P = .000). The mean percent total weight loss was 15.1%. All patients reported nausea in the first day of insertion; however, 69.6% reported complete resolution by the third day. Two patients (1.5%) vomited the balloon early, 3 patients (2.2%) had to have the balloon removed early due to intolerance, 3 patients (2.2%) experienced early deflation, 18 (13.3%) patients reported episodes of diarrhea around the time of deflation, and 29 (21.5%) patients experienced colicky abdominal pain in the week of balloon deflation. One patient experienced small bowel obstruction after which the balloon was removed via laparoscopic enterotomy. CONCLUSION: This study aimed to evaluate the safety and effectiveness of the Elipse balloon in the largest population studied as of date. It was also able to demonstrate that it can be safely and successfully swallowed, filled, imaged, and passed. In addition, it effectively aided in weight loss, showing promising results.


Assuntos
Balão Gástrico , Obesidade Mórbida/terapia , Adulto , Antieméticos/uso terapêutico , Índice de Massa Corporal , Quimioterapia Combinada , Feminino , Humanos , Kuweit , Masculino , Omeprazol/uso terapêutico , Ondansetron/uso terapêutico , Segurança do Paciente , Estudos Prospectivos , Implantação de Prótese/métodos , Inibidores da Bomba de Prótons/uso terapêutico , Resultado do Tratamento , Vômito/prevenção & controle
13.
Obes Surg ; 27(12): 3187-3193, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28653181

RESUMO

BACKGROUND: The prevalence of obesity is on a continuous rise worldwide, with major studies clearly correlating obesity with the development of chronic metabolic disorders including type 2 diabetes. Bariatric surgery has proven to be beneficial in the management of this condition; however, a limited number of studies exist on its effect on type 1 diabetes. OBJECTIVE: The objective of this study is to evaluate the outcome of laparoscopic sleeve gastrectomy for the management of patients with type 1 diabetes (DM1). SETTING: This is a retrospective cohort study conducted in a university hospital and private practice in Kuwait. RESEARCH DESIGN AND METHODS: Analysis was conducted on 10 patients diagnosed with type 1 diabetes that underwent bariatric surgery from October 2008 until December 2016 at Amiri Hospital and Royale Hayat Hospital, Kuwait. Primary parameters included body mass index (BMI), % excess weight (%EWL) loss at follow-up, glycosylated hemoglobin (A1C), and basal insulin requirements. Total cholesterol readings and fasting blood glucose (FBS) levels were considered secondary outcomes. Statistical analysis of the data was carried out using Statistical Package for the Social Sciences (SPSS) software. RESULTS: Mean BMI showed a reduction from 41.9 ± 5.4 to 31.4 ± 8.4 kg/m2. Mean %EWL after the follow-up period was 74.4 ± 25.3%. A1C levels failed to show a significant difference 12 months post-op (p = 0.189). Cholesterol levels did not display a significant decrease either (p = 0.447). When it came to insulin requirements, a significant difference was perceived, with the mean number of units of insulin required dropping from 76.6 to 18.2 (p = 0.026). FBS readings also showed a drop from 15.1 ± 3.8 to 7.8 ± 2.9 mmol/L (p = 0.001). CONCLUSIONS: Laparoscopic sleeve gastrectomy resulted in significant weight loss, comorbidity resolution as well as reduction in their insulin doses post-op. However, glycemic control does not seem to show significant improvement in these patients. Larger, more long-term studies are needed to reach a definite conclusion on this topic.


Assuntos
Diabetes Mellitus Tipo 1/cirurgia , Gastrectomia/métodos , Obesidade Mórbida/cirurgia , Adulto , Glicemia/metabolismo , Índice de Massa Corporal , Diabetes Mellitus Tipo 1/complicações , Feminino , Hemoglobinas Glicadas/metabolismo , Humanos , Insulina/sangue , Kuweit , Laparoscopia/métodos , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/complicações , Estudos Retrospectivos , Resultado do Tratamento , Redução de Peso , Adulto Jovem
14.
PLoS One ; 12(3): e0171112, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28273093

RESUMO

Waterpipe (also called hookah, shisha, or narghile) smoking is a common form of tobacco use in the Middle East. Its use is becoming more prevalent in Western societies, especially among young adults as an alternative form of tobacco use to traditional cigarettes. While the risk to cigarette smoking is well documented, the risk to waterpipe smoking is not well defined with limited information on its health impact at the epidemiologic, clinical and biologic levels with respect to lung disease. Based on the knowledge that airway epithelial cell DNA methylation is modified in response to cigarette smoke and in cigarette smoking-related lung diseases, we assessed the impact of light-use waterpipe smoking on DNA methylation of the small airway epithelium (SAE) and whether changes in methylation were linked to the transcriptional output of the cells. Small airway epithelium was obtained from 7 nonsmokers and 7 light-use (2.6 ± 1.7 sessions/wk) waterpipe-only smokers. Genome-wide comparison of SAE DNA methylation of waterpipe smokers to nonsmokers identified 727 probesets differentially methylated (fold-change >1.5, p<0.05) representing 673 unique genes. Dominant pathways associated with these epigenetic changes include those linked to G-protein coupled receptor signaling, aryl hydrocarbon receptor signaling and xenobiotic metabolism signaling, all of which have been associated with cigarette smoking and lung disease. Of the genes differentially methylated, 11.3% exhibited a corresponding significant (p<0.05) change in gene expression with enrichment in pathways related to regulation of mRNA translation and protein synthesis (eIF2 signaling and regulation of eIF4 and p70S6K signaling). Overall, these data demonstrate that light-use waterpipe smoking is associated with epigenetic changes and related transcriptional modifications in the SAE, the cell population demonstrating the earliest pathologic abnormalities associated with chronic cigarette smoking.


Assuntos
Epigênese Genética , Epitélio/metabolismo , Fumar , Adulto , Brônquios/metabolismo , DNA/genética , DNA/isolamento & purificação , DNA/metabolismo , Metilação de DNA , Regulação para Baixo , Feminino , Genoma Humano , Humanos , Masculino , RNA/genética , RNA/isolamento & purificação , RNA/metabolismo , Receptores de Hidrocarboneto Arílico/metabolismo , Receptores Acoplados a Proteínas G/genética , Receptores Acoplados a Proteínas G/metabolismo , Regulação para Cima
15.
Am J Respir Crit Care Med ; 194(5): 587-95, 2016 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-27007171

RESUMO

RATIONALE: Waterpipes, also called hookahs, are currently used by millions of people worldwide. Despite the increasing use of waterpipe smoking, there is limited data on the health effects of waterpipe smoking and there are no federal regulations regarding its use. OBJECTIVES: To assess the effects of waterpipe smoking on the human lung using clinical and biological parameters in young, light-use waterpipe smokers. METHODS: We assessed young, light-use, waterpipe-only smokers in comparison with lifelong nonsmokers using clinical parameters of cough and sputum scores, lung function, and chest high-resolution computed tomography as well as biological parameters of lung epithelial lining fluid metabolome, small airway epithelial (SAE) cell differential and transcriptome, alveolar macrophage transcriptome, and plasma apoptotic endothelial cell microparticles. MEASUREMENTS AND MAIN RESULTS: Compared with nonsmokers, waterpipe smokers had more cough and sputum as well as a lower lung diffusing capacity, abnormal epithelial lining fluid metabolome profile, increased proportions of SAE secretory and intermediate cells, reduced proportions of SAE ciliated and basal cells, markedly abnormal SAE and alveolar macrophage transcriptomes, and elevated levels of apoptotic endothelial cell microparticles. CONCLUSIONS: Young, light-use, waterpipe-only smokers have a variety of abnormalities in multiple lung-related biological and clinical parameters, suggesting that even limited waterpipe use has broad consequences on human lung biology and health. We suggest that large epidemiological studies should be initiated to investigate the harmful effects of waterpipe smoking.


Assuntos
Pulmão/patologia , Pulmão/fisiopatologia , Capacidade de Difusão Pulmonar , Fumar/efeitos adversos , Tabagismo/complicações , Transcriptoma/efeitos dos fármacos , Adulto , Monóxido de Carbono/análise , Carboxihemoglobina/análise , Estudos de Casos e Controles , Micropartículas Derivadas de Células/efeitos dos fármacos , Cotinina/urina , Tosse/etiologia , Tosse/microbiologia , Células Epiteliais/efeitos dos fármacos , Feminino , Volume Expiratório Forçado/fisiologia , Humanos , Masculino , Nicotina/urina , Alvéolos Pulmonares/citologia , Alvéolos Pulmonares/efeitos dos fármacos , Escarro/química , Escarro/efeitos dos fármacos , Tórax/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Adulto Jovem
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