Smoking Nicotine Research Articles

Systematic review and meta-analysis investigating nicotine, cotinine, and carbon monoxide exposures in people who both smoke and use nicotine replacement therapy.

Smoking is a major international public health problem. To determine effects of concurrent smoking and nicotine replacement therapy (NRT) use on reported heaviness of smoking, nicotine (cotinine) body fluid, and exhaled air carbon monoxide (CO) concentrations. Systematic review and meta-analysis of randomised controlled trials (RCTs) that test interventions permitting concurrent NRT use and smoking, and comparing, within participants, outcomes when smoking with those when smoking and using NRT concurrently. In total, 29 studies were included in the review. Meta-analysis of nine showed that, compared to when solely smoking, fewer cigarettes were smoked daily when NRT was used (mean difference during concurrent smoking and NRT use, -2.06 CPD [95% confidence interval {CI} = -3.06 to -1.07, P<0.0001]). Meta-analysis of seven studies revealed a non-significant reduction in exhaled CO during concurrent smoking and NRT use (mean difference, -0.58 ppm [95% CI = -2.18 to 1.03, P = 0.48]), but in the three studies that tested NRT 'preloading', a similar reduction in exhaled CO was statistically significant (mean difference, -2.54 ppm CO [95% CI = -4.14 to -0.95, P = 0.002]). Overall, 11 studies reported cotinine concentrations, but meta-analysis was not possible due to data reporting heterogeneity; of these, seven reported lower cotinine concentrations with concurrent NRT and smoking, four reported no differences, and none reported higher concentrations. People who smoke but who also use NRT reported smoking less heavily than when solely smoking, and when NRT was used as 'preloading' this reported smoking reduction was biochemically confirmed. There was no evidence concurrent smoking and NRT use resulted in greater nicotine exposure than smoking.

Association of smoking status and nicotine dependence with multi-morbidity in China: A nationally representative crosssectional study.

Multi-morbidity is a public health priority as it is associated with an increased risk of mortality and a substantial healthcare burden. Smoking is considered a predisposing factor for multi-morbidity, but evidence for an association between multi-morbidity and nicotine dependence is insufficient. This study aimed to explore the association between smoking status, nicotine dependence, and multi-morbidity in China. We recruited 11031 Chinese citizens from 31 provinces in 2021 using a multistage stratified cluster sampling strategy to ensure the study population represented national population characteristics. The association between smoking status and multi-morbidity was analyzed using binary logistic regression and multinomial logit regression models. We then analyzed the associations between four kinds of smoking status (age at smoking initiation, cigarette consumption per day, smoking when ill in bed, and inability to control smoking in public places), nicotine dependence, and multi-morbidity among participants who were current smokers. Compared with non-smokers, the odds of multi-morbidity were higher among ex-smokers (adjusted odd ratio, AOR=1.40, 95% CI: 1.07-1.85). The risk of multi-morbidity was greater in participants who were underweight/overweight/obese (AOR=1.90; 95% CI: 1.60-2.26) compared with those who were normal weight. and also greater for drinkers (AOR=1.34; 95% CI: 1.09-1.63) than non-drinkers. Compared with children who began smoking at the age of <15 years, participants aged >18 years had a lower likelihood of multi-morbidity (AOR=0.52; 95% CI: 0.32-0.83). People who consumed ≥31 cigarettes per day (AOR=3.77; 95% CI: 1.47-9.68) and those who smoked when ill in bed (AOR=1.70; 95% CI: 1.10-2.64) were more likely to have multi-morbidity. Our findings show that smoking behavior, including initiation age, frequency of daily smoking, and still smoking during illness or in public, is a critical risk factor for multi-morbidity, especially when combined with alcohol consumption, physical inactivity, and abnormal weight (underweight, overweight, or obese). This highlights the crucial effect of smoking cessation in the prevention and control of multi-morbidity, especially in patients with three or more diseases. Implementing smoking and lifestyle interventions to promote health would both benefit adults and prevent the next generation from initiating habits that increase the risk of multi-morbidity.

In situ confined growth of g-C3N4/pigment compound catalyst in porous diatomite for enhancing photocatalytic nicotine elimination and bacterial inactivation

Humans spend at least 70% of their time indoors, but indoor air pollution has received very little attention compared to outdoor pollution. Indoor air pollutants include inhalable particulate matter, volatile organic pollutants, and biological pollutants. In particular, nicotine in second-hand smoke and pathogenic microorganisms in the air are the most overlooked pollutants, which pose serious threats to human health. Here, low-cost inorganic pigments and diatomite have been selected to modify g-C3N4 to obtain five novel g-C3N4-based photocatalysts, which are intensely colored and show excellent nicotine degradation performance under both simulated sunlight and white LED illumination. Five g-C3N4-based photocatalytic textiles obtained by supporting the colored photocatalysts on low-melting-point skin–core composite polyester (LMPET) still exhibited outstanding photocatalytic degradation performance and cyclability in removing nicotine. Some of the photocatalytic textiles also displayed highly efficient bacterial inactivation towards E. coli and S. aureus under white LED illumination. Mechanistic research has revealed that the combination of inorganic pigments and diatomite effectively promotes the separation of photogenerated electrons and holes. Moreover, •O2-, 1O2, and •OH have been identified as the main active species in the colored photocatalyst systems. Notably, the colored photocatalysts may be used as dyes to make wall coverings, sofa covers, and so on, which could conceivably purify indoor air while playing a decorative role.

TYPES OF SUBSTANCE USES AMONG SAUDI FEMALE USERS IN JEDDAH, KINGDOM OF SAUDI ARABIAFROM 2008 TO 2017: CASE - CONTROL STUDY

Background: Substance use is a major public health problem, necessitating further investigation in Saudi Arabia. This research was carried out to evaluate the patterns of substance use among Saudi women. Method:This was a case-control studyconducted in Jeddah. Data was collected and analyzed using Chi-square tests. Results: The mean age of the cases (mean± SD) was 29.9±10.9 years, while that of controls was 33.7±10.9 years. Most (71%) cases were smoking nicotine, (61.8%)using cannabis, and (47.3%) using amphetamine. Most of them were single (37%), separated (4.8%), or divorced (24.2%). More cases than controls were likely to have been in multiple marriages (p&lt;0.001), have a lower education level (p&lt;0.001), be unemployed (p&lt;0.001), have a household income of less than 5000 SR (p&lt;0.001), and live in families in conflicts (p&lt;0.001).Tuberculosis (p=0.012), HIV (p=0.036), hepatitis C or B (p=0.044), and sickle cell disease (p&lt;0.001)were more prevalent in cases than controls.Casesalso hada significantly higher prevalence of schizophrenia, depression, bipolar and personality disorders (all p&lt;0.001) than controls. Conclusion:These findings indicate the high prevalence of substance use in young Saudi females and the association with socio-economic, demographic, and mental health factors.

Characteristics of tobacco use among secondary school students: a cross-sectional study in a school in Valencia, Spain.

Cigarette smoking is a significant public health problem, and it is essential to work actively with young people to limit the incorporation of this addiction. This study aimed to identify characteristics associated with tobacco use in adolescents in a real setting. Epidemiologic, cross-sectional study including secondary school students aged 12-17 years in the 1st, 2nd, and 3rd grades of "Joan Fuster High School" in the city of Sueca, Valencia (Spain). An anonymous, self-administered questionnaire was used to collect data on demographics, cigarette smoking history, alcohol consumption, nicotine dependence, and exposure to parental cigarette smoking. The final sample of individuals surveyed included 306 students (50.6% females) with a median age of 13 years. The prevalence of cigarette smoking was 11.8% (13.5% in females and 9.9% in males). The mean age of cigarette smoking onset was 12.7 ± 1.6 years. Ninety-three students (30.4%) were repeaters, and 114 (37.3%) reported alcohol consumption. Significant factors associated with tobacco use were being a repeater (odds ratio [OR] 4.19, 95% confidence interval [CI] 1.75-10.55, p = 0.002), alcohol consumption (OR 4.06, 95% CI 1.75-10.15, p = 0.002) and parental cigarette smoking (OR 3.76, 95% CI 1.52-10.74, p = 0.007). An operational profile of features associated with tobacco consumption was identified in the presence of parental cigarette smoking, alcohol consumption, and poor academic performance. Consideration of these factors could be useful in the operational design of cigarette smoking cessation interventions for young people in a context where there is a great need for better prevention and control of cigarette smoking.

Nicotine Dependence and Perceived Stress during the Pandemic

Background The development of COVID-19, which continues to increase in Indonesia, impacts the Indonesian people and causes stress due to the impact of the COVID-19 pandemic. Prior studies in several countries have shown that stress affects smokers during the COVID-19 pandemic. It affects smokers in two different ways, either they increase smoking or decrease smoking. This study aimed to determine the effect of Nicotine, smoking history, and changes in smoking habits during the COVID-19 pandemic on stress in smokers. Methods We conducted an online survey among active smokers in one of the villages in the South Lampung district, Indonesia November 2020 (n = 150). The survey includes sex, marital status, age of smoking initiation, duration as a smoker, changes in smoking frequency, questionnaire for nicotine dependence (the Fagerstrom Test for Nicotine Dependence questionnaire) and The Perceived Stress Scale (PSS). Data were analyzed with Chi-square&lt;0.05). Results The results showed that the PSS score had a significant association with changes in smoking frequency (p=0.004) and nicotine dependence (p=0.001). Conclusions The study concluded that variations in nicotine dependence and changing smoking habits impacted perceived stress in smokers during the pandemic. There is a significant relationship between age at starting to smoke, number of cigarettes per day, duration of smoking habits, degree of smoking habits, and changes in smoking habits with stress levels in smokers in the COVID-19 pandemic era, and there is no relationship between types of cigarettes consumed, and stress levels in smokers in COVID-19 pandemic era.

Comparative study of the effects of cigarette smoke versus next-generation tobacco and nicotine product extracts on inflammatory biomarkers of human monocytes

Monocytes exhibiting a pro-inflammatory phenotype play a key role in adhesion and development of atherosclerotic plaques. As an alternative to smoking, next-generation tobacco and nicotine products (NGP) are now widely used. However, little is known about their pro-inflammatory effects on monocytes. We investigated cell viability, anti-oxidant and pro-inflammatory gene and protein expression in THP-1 monocytes after exposure to aqueous smoke extracts (AqE) of a heated tobacco product (HTP), an electronic cigarette (e-cig), a conventional cigarette (3R4F) and pure nicotine (nic). Treatment with 3R4F reduced cell viability in a dose-dependent manner, whereas exposure to alternative smoking products showed no difference to control. At the highest non-lethal dose of 3R4F (20%), the following notable mRNA expression changes were observed for 3R4F, HTP, and e-cig respectively, relative to control; HMOX1 (6-fold, < 2-fold, < 2-fold), NQO1 (3.5-fold, < 2-fold, < 2-fold), CCL2 (4-fold, 3.5-fold, 2.5-fold), IL1B (4-fold, 3-fold, < 2-fold), IL8 (5-fold, 2-fold, 2-fold), TNF (2-fold, 2-fold, < 2-fold) and ICAM1 was below the 2-fold threshold for all products. With respect to protein expression, IL1B (3-fold, < 2-fold, < 2-fold) and IL8 (3.5-fold, 2-fold, 2-fold) were elevated over the 2-fold threshold, whereas CCL2, TNF, and ICAM1 were below 2-fold expression for all products. At higher doses, greater inductions were observed with all extracts; however, NGP responses were typically lower than 3R4F. In conclusion, anti-oxidative and pro-inflammatory processes were activated by all products. NGPs overall showed lower responses relative to controls than THP-1 cells exposed to 3R4F AqE.

The impact of depression on opioid withdrawal symptoms among smokers with opioid use disorder receiving medication-assisted opioid detoxification.

Individuals with opioid use disorder (OUD) endorse high rates of combustible smoking (Zale et al., 2015) which is associated with poorer outcomes (e.g., opioid craving and lower detoxification completion rates) among individuals receiving medications for opioid use disorder (MOUD; Mannelli et al., 2013) and lower smoking cessation rates (Okoli et al., 2010). The complex pharmacological relationship between opioids and nicotine may help explain these findings (Kohut, 2017); however, little is known about psychosocial variables that influence MOUD processes among combustible smokers with OUD. The present study sought to expand upon prior work (Mannelli et al., 2013) by examining the impact of psychological factors and smoking-related variables on opioid withdrawal symptoms among smokers with OUD receiving Suboxone at an inpatient substance use treatment facility. Current smokers with OUD (N = 64) completed a battery of psychological measures examining depression, anxiety, and smoking constructs. The present study tested the influence of daily smoking rate, nicotine dependence, smoking urges, anxiety, and depression on opioid withdrawal symptoms through a hierarchical multiple regression. Findings revealed that smoking urges (p = .003) predicted severity of opioid withdrawal symptoms while controlling for race, daily smoking rate, and nicotine dependence. Depression (p = .000), however, explained variance in severity of opioid withdrawal symptoms above and beyond all smoking-related variables and anxiety. Results highlight the importance of considering psychological factors, specifically depression, which impact treatment processes among smokers with OUD to help inform the development of effective treatment interventions for both OUD and smoking cessation among individuals with OUD. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Influence of Tobacco Variety and Curing on Free Radical Production in Cigarette Smoke.

Cigarette smoke contains highly reactive free radicals thought to play an important role in tobacco smoke-induced harm. Previously, large variations in free radical and toxicant output have been observed in commercial cigarettes. These variations are likely because of cigarette design features (paper, filter, and additives), tobacco variety (burley, bright, oriental, etc.), and tobacco curing methods (air, sun, flue, and fire). Previous reports show that tobacco varieties and curing methods influence the production of tobacco smoke constituents like the tobacco-specific carcinogen nicotine-derived nitrosamine ketone (NNK). We evaluated free radical, nicotine, and NNK production in cigarette smoke from cigarettes produced with 15 different types of tobacco. Gas-phase free radicals were captured by spin trapping with N-tert-butyl-α-phenylnitrone and particulate-phase radicals were captured on a Cambridge Filter pad (CFP). Both types of radicals were analyzed using electron paramagnetic resonance spectroscopy. Nicotine and NNK were extracted from the CFP and analyzed by gas chromatography flame ionization detection and liquid chromatography-mass spectrometry, respectively. Gas-phase radicals varied nearly 8-fold among tobacco types with Saint James Perique tobacco producing the highest levels (42 ± 7 nmol/g) and Canadian Virginia tobacco-producing the lowest levels (5 ± 2 nmol/g). Nicotine and NNK levels in smoke varied 14-fold and 192-fold, respectively, by type. Gas-phase free radicals were highly correlated with NNK levels (r = 0.92, p < .0001) and appeared to be most impacted by tobacco curing method. Altogether, these data suggest that tobacco types used in cigarette production may serve as a target for regulation to reduce harm from cigarette smoking. Variations in cigarette free radical and NNK levels vary based on the tobacco variety and curing method. Reducing the ratio of high-producing free radical and NNK tobacco types offer a potential tool for regulators and producers looking to reduce toxicant output from cigarettes.

Tobacco Nitrate and Free Radical Levels in the Mainstream Smoke of US Cigarette Brands.

Tobacco nitrate levels have been known to impact the levels of toxicants such as polyaromatic hydrocarbons and tobacco-specific nitrosamines (TSNAs) produced during smoking. Recent work in our group showed that the intrinsic nitrate levels in individual tobacco varieties also have a large influence on the formation of gas-phase (GP) free radicals in the mainstream smoke of cigarettes produced with a single tobacco variety. As tobacco nitrate content is a potential target for future regulatory policies, we investigated whether the levels of GP free radicals in the smoke from commercially available cigarettes is also dependent on the nitrate content in the corresponding tobacco blends. GP and particulate-phase (PP) free radical yields in mainstream smoke produced from 25 popular US cigarette brands were measured by electron paramagnetic resonance (EPR) spectroscopy. For each brand, we also measured levels of the TSNAs NNN (N'-nitrosonornicotine) and NNK (4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone) via HPLC-MS and the nicotine content via GC-FID. Our results show that the intrinsic nitrate levels varied >15-fold and GP radicals varied 4-fold among the 25 brands tested. The GP radicals were correlated with intrinsic nitrate levels (r = 0.87, p < 0.001). NNK and NNN levels varied >8-fold and 12-fold, respectively. We found that NNK was moderately correlated to nitrate content (r = 0.42, p = 0.03) while the NNN was strongly correlated to the nitrate content (r = 0.65, p < 0.001). Nicotine levels varied the least (<3-fold) but showed a moderate negative correlation to nitrate content (r = -0.47, p = 0.02). No statistically significant correlation was observed between nicotine and TSNA levels in mainstream smoke. Overall, this demonstrates that the nitrate content of tobacco blends used in US cigarette brands impacts toxicant output in the mainstream smoke, although other proprietary variables (total ventilation, additives, filter type, etc.) may also modulate these results.

Persistent impacts of smoking on resting-state EEG in male chronic smokers and past-smokers with 20 years of abstinence

Smoking is a severe addictive health risk behavior and notorious for the high likelihood of relapse after attempted cessation. Such an addictive pattern in smoking has been associated with neurobiological changes in the brain. However, little is known whether the neural changes associated with chronic smoking persist after a long period of successful abstinence. To address this question, we examined resting state EEG (rsEEG) in chronic smokers who have been smoking for 20 years or more, past-smokers who have been successfully abstaining for 20 years or more, and never-smokers. Both current-smokers and past-smokers showed significantly decreased relative theta power than never-smokers, showcasing persistent effect of smoking on the brain. Other rsEEG features in alpha frequency band demonstrated distinctive patterns associated with active smoking, such that compared to never-smokers, only current-smokers, but not past-smokers, showed significantly higher relative power, EEG reactivity—power changes between eyes-closed and eyes-open conditions—, and coherence between channels. Furthermore, individual variabilities across these rsEEG biomarkers were accounted for by individuals’ self-reported smoking history and nicotine dependence in current- and past- smokers. These data suggest the persistent effect of smoking on the brain even after sustained remission for 20 years.

Abstract P465: Impact of Smoking Among Medicare Beneficiaries With HIV Admitted for Acute Myocardial Infarction in the United States; a Perspective Using the 2019 National Inpatient Sample

Introduction: While smoking has shown to influence health negatively, there is a lack of data of its impact among HIV patients hospitalized for Acute Myocardial Infarction (AMI) under Medicare. Hypothesis: We assessed the hypothesis that the characteristics of smokers vs. non-smokers differ among Medicare beneficiaries with a diagnosis of HIV admitted for AMI in the US, and that worse hospitalization outcomes may be seen with smokers. Method: The 2019 National Inpatient Sample was used for our study. We first found patients with a principal admission for AMI, covered by Medicare and with a diagnosis of HIV. The presence of smoking(nicotine) was compared between various patient characteristics and an adjusted odds ratio (aOR) for the mortality risk among smokers with HIV admitted for AMI was also estimated. Results: Our study found 1315 cases of AMI among HIV patients covered by Medicare with 800 (60.8%) smokers. Various differences were seen in patient characteristics. Smokers were younger than non-smokers (mean age 61.13 years vs. 62.74 years) and a higher proportion were males (88.1%). Furthermore, smokers also had a higher prevalence of depression (16.9% vs. 10.7%), drug abuse (14.4% vs. 3.9%), chronic pulmonary disease (40.0% vs. 15.5%), and peripheral vascular disease (13.6% vs 10.0%). However, non-smokers had a higher prevalence of hypothyroidism (6.9% vs. 10.7%), cirrhosis (1.9 vs. 8.7%), diabetes mellitus (33.1% vs. 47.6%), hypertension (78.8% vs. 86.4%), anemia (25.0% vs 38.8%) and chronic kidney disease (35.0% vs 50.5%). After adjusting for variables, smokers in our sample had a higher inpatient mortality risk (aOR 2.203, 95% CI 1.027-4.728, p= 0.043). Conclusion: Inpatient mortality risk for HIV Medicare beneficiaries admitted with AMI was higher among smokers. Several differences in patient characteristics were also observed. More strict educational and sensitization campaigns among this population may be helpful.

Nicotine addiction in pre-hospital emergency care workers in Turkey: a cross-sectional study

ABSTRACT Objective This study aims to determine the smoking prevalence and nicotine addiction in pre-hospital emergency care workers. Methods The study, conducted between March-April 2022 with the participation of 318 pre-hospital care workers, is cross-sectional. To determine the participants’ nicotine addiction levels, the participants the Fagerström Nicotine Addiction Test (FNAT) was used. For statistical analyses, correlation, chi-square, student’s t-test, and analysis of variance (ANOVA) were used. The statistical significance level was accepted as p < .05. Results While 53.0% Of The Study Group Used To Smoke, 9.1% Thought That Smoking Was Not harmful to health. The mean FNAT score of the smoking group was 5.04 ± 2.92. Men’s FNAT scores (p < .05) were higher for those over the age of 40 than for those under 40 than women (p < .05). In the comparison made according to the participants’ occupations, the most smoking group was physicians (p < .05). The group with the highest addiction score among smokers was nurses (p < .05). A positive correlation was found between the years of employment in the sector and the FNAT scores of smokers (r = 0.146, p < .05). Conclusion Pre-hospital emergency care workers had a much higher smoking prevalence and nicotine addiction than the medical staff in other units.

Impact of Smoking Status and Nicotine Dependence on Academic Performance of Health Sciences Students.

Smoking behavior has been associated with poor academic performance among adult students worldwide. However, the detrimental effect of nicotine dependence on several students' academic achievement indicators is still unclear. This study aims to assess the impact of smoking status and nicotine dependence on grade point average (GPA), absenteeism rate and academic warnings among undergraduate health sciences students in Saudi Arabia. A validated cross-sectional survey was conducted, in which, participants responded to questions evaluated cigarette consumption, urge to consume and dependency, learning performance, days of absentees, and academic warnings. A total of 501 students from different health specialties have completed the survey. Of whom, 66% were male, 95% ranging between the age of 18-30 years old, and 81% reported no health issues or chronic diseases. Current smokers estimated to be 30% of the respondents, of which 36% revealed smoking history of 2-3 years. The prevalence of nicotine dependency (high to extremely high) was 50%. Overall, smokers had significantly lower GPA, higher absenteeism rate, and higher number of academic warnings when compared to nonsmokers (p<0.001). Heavy smokers demonstrated significantly less GPA (p=0.036), higher days of absences (p=0.017), and more academic warnings (p=0.021) compared to light smokers. The linear regression model indicated a significant association between smoking history (increased pack-per-year) and poor GPA (p=0.01) and increased number of academic warning last semester (p=0.01), while increased cigarette consumption was substantially linked with higher academic warnings (p=0.002), lower GPA (p=0.01), and higher absenteeism rate for last semester (p=0.01). Smoking status and nicotine dependence were predictive of worsening academic performance, including lower GPA, higher absenteeism rate and academic warnings. In addition, there is a substantial and unfavorable dose-response association between smoking history and cigarette consumption with impaired academic performance indicators.

Comparison between the Effect of Nicotine Smoking in Tobacco and Electronic Cigarettes on Urinary Bladder in Adult Male Albino Rats: Biochemical and Histopathological Study

Comparison between the Effect of Nicotine Smoking in Tobacco and Electronic Cigarettes on Urinary Bladder in Adult Male Albino Rats: Biochemical and Histopathological Study

The Role of Emotion Differentiation in the Association Between Momentary Affect and Tobacco/Nicotine Craving in Young Adults.

Tobacco/nicotine use is commonly initiated during adolescence or young adulthood, which increases the likelihood of continued use into adulthood and related adverse health outcomes. Despite interest in cessation, achieving and maintaining abstinence is difficult among this population. Cravings are often a barrier to abstinence, which have been associated with intensity of affect at the moment level. Emotion differentiation involves the ability to distinguish between discrete emotion states, and previous work suggests it may moderate the effect of momentary affect on craving, which has never been explored among young adults who are smoking or vaping nicotine. In a sample of young adults (N = 37, observations = 2020, ages 18-25, 51% female, and 78% white) interested in quitting smoking or vaping, we used real-time, naturalistic data capture via mobile phones to examine the interaction of momentary affect and trait emotion differentiation on nicotine craving. Participants were prompted with four surveys per day for 35 days and asked to make a 48-h quit attempt on day 7. Multilevel models showed moments of higher-than-average momentary negative affect (NA; b = 0.39, p < .001), and positive affect (PA; b = 0.26, p = .001) were associated with greater levels of craving. NA emotion differentiation significantly moderated the associations between PA and craving (b = -0.63, p = .031) and NA and craving (b = -0.67, p = .003). Findings from this exploratory analysis suggest that for young adults engaging in a nicotine quit attempt, greater ability to differentiate NA weakens the momentary association between intense affect and craving. Results of this study show that the ability to differentiate between discrete emotional experiences may protect young adults against nicotine craving during moments of intense affective experience. These preliminary findings suggest that emotion differentiation, a modifiable construct, could be an important treatment target for individuals engaged in treatment for nicotine dependence.

Nicotine neurotoxicity exacerbation following engineered Ag and Cu (50-60nm) nanoparticles intoxication. Neuroprotection with nanowired delivery of antioxidant compound H-290/51 together with serotonin 5-HT3 receptor antagonist ondansetron.

Nicotine abuse is frequent worldwide leading to about 8 millions people die every year due to tobacco related diseases. Military personnel often use nicotine smoking that is about 12.8% higher than civilian populations. Nicotine smoking triggers oxidative stress and are linked to several neurodegenerative diseases such as Alzheimer's disease. Nicotine neurotoxicity induces significant depression and oxidative stress in the brain leading to neurovascular damages and brain pathology. Thus, details of nicotine neurotoxicity and factors influencing them require additional investigations. In this review, effects of engineered nanoparticles from metals Ag and Cu (50-60nm) on nicotine neurotoxicity are discussed with regard to nicotine smoking. Military personnel often work in the environment where chances of nanoparticles exposure are quite common. In our earlier studies, we have shown that nanoparticles alone induces breakdown of the blood-brain barrier (BBB) and exacerbates brain pathology in animal models. In present investigation, nicotine exposure in with Ag or Cu nanoparticles intoxicated group exacerbated BBB breakdown, induce oxidative stress and aggravate brain pathology. Treatment with nanowired H-290/51 a potent chain-breaking antioxidant together with nanowired ondansetron, a potent 5-HT3 receptor antagonist significantly reduced oxidative stress, BBB breakdown and brain pathology in nicotine exposure associated with Ag or Cu nanoparticles intoxication. The functional significance of this findings and possible mechanisms of nicotine neurotoxicity are discussed based on current literature.

Cytisinicline for Smoking Cessation in Adult Smokers

Cytisinicline is a naturally derived, plant-based medication that has been developed as a treatment for smoking cessation and nicotine dependence. Based on a product available in Europe, over 4 million smokers in Central and Eastern Europe have used this medication and over 10,000 subjects have participated in clinical trials worldwide. Cytisinicline acts as a partial agonist and partial antagonist for the alpha-4 beta-2 nicotinic acetylcholine receptors in the brain, which are the same receptors that are activated by nicotine. Cytisinicline helps to reduce cravings, withdrawal symptoms and the reward and satisfaction associated with smoking by preventing nicotine from binding to these receptors and releasing dopamine. The On-going Research of Cytisinicline for Addiction-1 clinical trial has shown that participants receiving 3.0 mg cytisinicline three times daily had the highest biochemically verified point-prevalence abstinence rate (50%) compared with placebo (10%) at the end of treatment, with no significant safety concerns. These quit results were statistically significant (p&lt;0.001). Cytisinicline demonstrates weak binding to the 5-hydroxytryptamine 3 receptor that causes nausea, consistent with few observed nausea events in participants receiving cytisinicline. No new medications for tobacco dependence have received United States Food and Drug Administration approval since 2006. Cytisinicline represents a promising treatment for those globally who continue to smoke tobacco.

Body Weight Does Not Associate with Smoking Prevalence or Cigarette Consumption in Adult Women

Introduction Women are reported to smoke more in association with body weight effects than nicotine dependence, findings that may support including sex-specific dietary interventions in smoking cessation programs. To evaluate this proposition, we examined the influence of sex and BMI classification on adult smoking prevalence and nicotine dependence (measured as cigarette consumption). Methods National Longitudinal Study of Adolescent and Adult Health (Add Health) data were filtered to US adults reporting smoking histories 10-15 years prior. Binary logistic regression modeling tested associations of sex and BMI classification (Normal, Overweight, Obese) with adult smoking status (former smoker versus smoker). Linear regression modeling tested the influence of sex and BMI classification on cigarette consumption in adult smokers. Results In 4,472 adults [Age x̅ (SD) = 37.89 (1.88) years)], significant sex-by-BMI classification interaction on smoking status was observed [Wald X2 = 257.2 on 8 df, p &lt; 0.0001]. Normal BMI men smoked at the highest rates overall. No other pairwise comparisons showed between- or within-sex relationships. Median differences in cigarette consumption in persisting adult smokers, disaggregated by sex and BMI classification, amounted to no more than 2 cigarettes daily. Conclusion Adult women show no greater smoking prevalence or cigarette consumption in association with body weight. Sex-specific interventions do not appear to be indicated. Implications for multiple health behavior approaches are discussed.

Smoking cessation economic benefits in a human capital approach: emerging evidence in Jordan

Background: Smoking is a major cause globally of morbidity and mortality hence life years lost, this issue manifested in 399 Million Jordanian dinars (JD)($562.3 million USD) lost yearly due to productivity lost as a consequence of smoking in Jordan1. It is no surprise that quitting smoking will reduce the loss in life years and hence productivity. In this study, using cohort simulation, we want to quantify the gains in productivity from smoking cessation aids usage for one course of smoking cessation aid varenicline or nicotine replacement therapy in comparison to physician counseling only without pharmacological therapy, in the population that intends to quit at a point of time, through campaigns nationwide, among the working-age population followed up until retirement. Methodology: We present a transparent, generic model based on accepted analytic methods that allow users to assess the present value of lifetime earnings gained (PVLE) in smokers who intend to quit. It is shown in previous studies that smoking cessation aids are cost-effective in Jordan (Madae’en et al. 2020), yet the benefit of using smoking cessation aids goes further to reduce productivity loss by reducing life years lost. Our model incorporates life-years gained from the Markov Model in Madae’en et al. (2020), simulation of Jordanian male smokers’ cohort in three scenarios of either using varenicline or nicotine replacement therapy or only physician consultation, to estimate life-years gained and hence reduction in lost productivity costs. Results: We found productivity loss was reduced in males who attempted to quit in their productive years. Using Varenicline, the researchers calculated the expected future payments (wages) count for years gained due to varenicline use for a wage average of 507 JDs ($714.5 USD) per month discounted by 8% for the rest of their productive life. As well as for the other two scenarios, the gained productivity from one course of varenicline to the male adults over 30 who intend to quit will reduce loss by more than 72 billion JDs ($101.42 billion USD) among the working-age population followed up until retirement. Conclusion: policy change must be approached to reimbursement of smoking cessation aid in the Jordanian formulary.