Smoking Addiction Research Articles

Knowledge, attitudes, and referral practices for smokers to a state tobacco quitline in a federally qualified healthcare center: Healthcare provider perspectives.

Federally qualified healthcare centers (FQHC) treat a large population of low-income patients disproportionately burdened by tobacco use. This study investigated healthcare providers' knowledge, attitudes, and referral patterns of patients who smoke to a state tobacco quitline. The study used a descriptive-qualitative design. In-depth interviews were conducted in 2021 with a sample of healthcare providers recruited from a federally qualified healthcare center (FQHC) in a large city in the Midwest. The interviews were guided by a standardized moderator's guide and lasted 30-45 minutes. Written informed consent was obtained before each interview, and participants completed a brief self-administered survey. Among the 25 participants, 92% were female and 44% were Black. Participants included medical providers (52%), behavioral health providers (16%), and other types of providers (32%). Participants' age and work experience averaged 41.5 and 5.25 years, respectively. Only 32% of providers reported having specialty training in smoking cessation or addiction counseling. Over half (52%) of the participants never or rarely referred patients to the Illinois Tobacco Quitline (ITQL). Providers reported several barriers to referring patients to the ITQL, including limited knowledge about services offered, time constraints, difficulties with the referral process, and lack of feedback between providers and the ITQL. Further, providers described patient-related barriers, including low motivation to quit smoking, language barriers, and failure of patients to respond to calls from the quitline. Recommendations were described for improving patient and provider education, referral processes, and increasing bi-directional communication between providers and the quitline. Providers identified numerous barriers to referring patients for smoking cessation treatment. Addressing the identified barriers requires a multi-faceted approach involving education, streamlined processes, supportive infrastructure, and patient-centered interventions to strengthen provider use and satisfaction with the available resources.

Smoking, alcohol, substance, technology, and gambling addiction among university students

Abstract Background University students turn to addictive substances to cope with the anxiety and stress caused by separation from family, adaptation to a new environment, as well as many economic and social problems. This study aimed to examine smoking, alcohol, substance, technology, and gambling addiction among university students. Methods The data of this cross-sectional study were collected between February and March 2024. The study population consisted of 23,446 people studying at Ä°nonu University, and the sample size was calculated as 346 based on a smoking rate of 35.6% among university students. A stratified sampling method was adopted according to the faculty of study, and 366 people were approached regarding the study. The independent variables were age, gender, faculty of study, and smoking status, while the dependent variables were alcohol and substance use status. Descriptive data were expressed in numbers and percentages, and a Chi-square test was used in the statistical analysis. Results Of the students in the research group, 56.8% were female, 54.4% were 22 years of age or older, 30.1% reported smoking cigarettes, 7.7% reported drinking alcohol in the last 30 days, 39.2% reported using the internet for five hours or more per day, 3% reported playing various casino games on the internet once a week or more, and 1.4% stated that they used substances. There was no statistically significant difference between alcohol and substance use according to smoking status (p > 0.05). Conclusions Approximately one-third of the students in the research group reported smoking cigarettes, and one-tenth reported alcohol use, which is quite high. The high percentage of students who use the internet for five hours or more per day and the low rate of online gambling should be considered in relation to these addictions. Key messages • Multidimensional interventions and intersectoral cooperation are required to prevent smoking, alcohol, substance use, technology, and gambling addictions among university students. • In addition, precautions should be taken to protect students against the risks associated with internet addiction and online gaming.

Tobacco Smoking Functional Networks: A Whole-Brain Connectome Analysis in 24,539 Individuals.

Nicotine addiction, a multifaceted neuropsychiatric disorder, profoundly impacts brain functions through interactions with neural pathways. Despite its significance, the impact of tobacco smoking on the whole-brain functional connectome remains largely unexplored. We conducted a whole-brain analysis on 24,539 adults aged 40 and above from the UK Biobank cohort. Subjects were categorized into individuals who use nicotine and who do not use nicotine based on current and chronic tobacco smoking information. Functional connectivity was assessed using resting-state functional magnetic resonance imaging (rfMRI). We employed a network analysis method to assess the systematic effects of tobacco smoking on brain connectome by identifying subnetworks that show nicotine-use-related differences. Our analyses revealed two nicotine-use-related subnetworks with distinct network structure (permutation p-value < 0.001). In the first network, there is a significant decrease in resting-state functional connectivity (rsFC) between the basal ganglia regions (e.g., nucleus accumbens) and 73% of the remaining brain regions, emphasizing the central hub role of basal ganglia in addictive smoking behaviors. Additionally, a data-driven subnetwork mainly involving regions from frontal and occipital lobes, showed reduced rsFC among individuals who use nicotine. The results suggest significant alterations in the communication and coordination among the basal ganglia and the broader network of brain regions. The observed changes in rsFC indicate a widespread disruption in the connectivity patterns associated with nicotine use. This study identifies rsFC subnetworks related to chronic nicotine use through whole-brain connectome analysis. The findings confirm that widespread alterations in rsFC are centered around hub nodes within the basal ganglia, including bilateral nucleus accumbens, putamen, caudate, and globus pallidus. In addition, our analysis found a clique-forming subnetwork vulnerable to tobacco smoking consisting of regions from the visual, dorsal/ventral attention, and frontoparietal networks.

Anxiety, Depression, and Attention Deficit Levels and Their Relationship with Smoking Addiction in People Applying to Smoking Cessation Outpatient Clinic

Anxiety, Depression, and Attention Deficit Levels and Their Relationship with Smoking Addiction in People Applying to Smoking Cessation Outpatient Clinic

Smoking and alcoholism dual addiction dissemination model analysis with optimal control theory and cost-effectiveness.

A mathematical model of the dual addiction dissemination dynamics of alcoholism and smoking was created and examined in this work, along with cost-effectiveness and optimal control techniques. The primary goal of the research is to determine which cost-efficient management techniques are most helpful in lowering the problem of dual addiction dispersion in the community. The smoking addiction sub-model, the alcohol addiction sub-model, and the dual addiction model between alcohol and smoking were all calculated, and their stability was examined in this study. The effective reproduction numbers of the models are computed using the next-generation operator technique. When the model's effective reproduction number is smaller than one, the backward bifurcation phenomenon is seen. Six time-dependent control measures are taken into consideration when formulating and analyzing the optimum control issue. Utilizing and applying the parameter values and using MATLAB ode45 solver we performed numerical simulations for both the dual addiction model and its optimal control problem. Furthermore, using the incremental cost-effectiveness ratio (ICER), we carried out the cost-effectiveness analyses. The cost-effectiveness analysis shows that implementing all the protection (education) control measures simultaneously (i.e., implementing Strategy A) is the most cost-effective strategy. Finally, we recommend that the public health stakeholders must put great effort into the implementation of Strategy A to reduce the smoking and alcoholism dual addiction dissemination problem in the community.

Addiction among high school students: determination of nicotine, substance, game, and internet addiction levels

ABSTRACT Aim The aims of this study were to determine the levels of cigarette smoking, psychoactive substances, game, and internet addiction among high school students and to examine whether addictions show a significant difference according to some socio-demographic variables and the relationships between addiction types. Method A total of 530 high school students studying in Turkey, agreed to participate in the study. Data were collected through face-to-face interviews using the Sociodemographic Questionnaire (which contains DSM-V categories of addictive substances), Fagerström Test for Nicotine Dependence (FTND), Game Addiction Scale (GAS), and Internet Addiction Test (IAT). Results Approximately 1.9% of the respondents were smokers and 0.8% were inhalant users. Respondents scored 7.43 ± 2.88 on FTND, 13.92 ± 5.57 on the GAS, and 43.44 ± 18.80 on the IAT. Male respondents received a higher average score on the GAS than female respondents, and female respondents received a higher average score on the IAT than male respondents. As body mass index increased, a statistically significant, positive and moderate correlation was found between GAS scores and IAT scores. Conclusion Addictions are becoming more and more widespread and measures, information, and research should be increased and young people should be educated about addictions.

Night Eating Syndrome Among University Students in Bangladesh: Investigation of Prevalence and Associated Factors.

Night eating syndrome (NES) has been associated with psychological issues and academic performance among university students in several countries, yet research on NES in Bangladesh remains limited. Therefore, the purpose of the study was to examine the prevalence and factors associated with NES among university students in the country. This cross-sectional study included 500 students from five public universities in Bangladesh. A validated 14-item night eating questionnaire was used to assess NES as the outcome variable. Demographic factors, depressive symptoms measured via the Patient Health Questionnaire (PHQ-9), and internet addiction levels measured via Orman's Internet Addiction Survey (OIAS) were explored as predictor variables. A multiple binary logistic regression model was fitted to identify the correlation of NES and its associated factors, with results presented as adjusted odds ratio (AOR) and level of significance set at p values <0.05. The prevalence of NES among participants was 16.6% (mean age = 21.6 years, 53.6% male). Adjusted binary logistic regression revealed that male participants (AOR = 2.03, 95% CI = 1.09-3.74, p = 0.024), smoking (AOR = 1.92, 95% CI = 1.02-4.44, p = 0.044), depressive symptoms (AOR = 2.17, 95% CI = 1.26-3.72, p = 0.005), and severe internet addiction (AOR = 2.69, 95% CI = 1.28-5.62, p = 0.009) were significantly associated with increased odds of experiencing NES. These findings underscore the need for heightened healthy eating awareness programs along with targeted mental health interventions with students attending Bangladeshi universities. Further research that explores longitudinal patterns of NES and the risk factors addressed in this study is warranted to better understand and inform the development of future interventions to benefit the Bangladeshi university student population.

A study on dopaminergic and serotonergic genes that have a role in smoking addiction at the DNA level

A study on dopaminergic and serotonergic genes that have a role in smoking addiction at the DNA level

Spotlight on nurses' smoking prevalence and addiction in Istanbul, Türkiye, the leading country in the implementation of WHO MPOWER policies

ObjectiveTürkiye is the leading country that has been applying the MPOWER criteria of the World Health Organization for years. However, the prevalence of smoking among nurses appears to be high, according to the literature. Therefore, we aimed to determine the prevalence, addiction levels, and dynamics of tobacco smoking among nurses in Türkiye.MethodIn this descriptive cross-sectional study, a questionnaire (prepared in cooperation with the “World Health Organization”) and the Fagerström Test for Nicotine Dependence were administered to 529 nurses working at a tertiary-care university hospital in 2020. Logistic regression was performed to determine factors predicting smoking.ResultsThe prevalence of smoking among nurses was 32.7% (n = 173). The mean Fagerström test score indicated a "low dependence" level (score: 3 ± 2.6). Both results were higher for males. A relationship was found between trying smoking cigarette and hookah. Of the “current smokers” group, 102 (60.4%) stated that they wanted to quit smoking. Only 21 (27.6%) of the nurses who have tried to quit smoking thus far have received professional help.ConclusionThe prevalence of smoking among nurses working at a tertiary-care university hospital was relatively low compared to that among nurses in Türkiye. While females are normally expected to smoke less, the high prevalence of smoking among nurses (most of them female) raises the question of the professional basis of this situation. However, the low rate of receiving professional help reveals the lack of promotion and accessibility of smoking cessation outpatient clinics in the faculty environment. Finally, the perception that hookah is an alternative tobacco product leads to cigarette smoking. The good news was that nurses had a low dependency rate.

The perceptions of harmfulness. Addictiveness and social acceptance of hookah smoking among adolescents in Turkey

ABSTRACT Background Hookah smoking among adolescents is a growing public health concern, potentially fueled by a lack of awareness regarding its health risks. This study aimed to determine the risk factors associated with hookah smoking and explore adolescents’ perceptions of its harmfulness, addictiveness and social acceptability. Methods Between October 2019 and April 2020, 400 adolescents aged 12 to 18 years participated in an interviewer-administered survey including socio-demographic characteristics, past medical history, lifestyle behaviors, tobacco use of adolescents and their immediate circle, knowledge on hookah’s health risks, perceptions of hookah’s addictiveness and social acceptability. Results Among adolescents 6.8% were regular hookah smokers, while 14.5% had tried hookah at least once. Adolescents who believed hookah was not addictive were more likely to perceive it as socially acceptable (p < 0.001). The perception of social acceptance increased by 1.68 times with each year of age, 2.05 times in the presence of a smoking teacher, and 10.14 times with having tried hookah once. Conclusions This study highlights that adolescents’ limited knowledge of hookah’s negative health effects and addictive nature contributes to its social acceptance. Moreover, in addition to family members and friends, teachers significantly impact adolescents’ hookah use and their perceptions of its harmfulness, social acceptability and addictiveness.

THE EFFECT OF NURSES' CHALLENGES TO STOPPING SMOKING ON NICOTINE ADDICTIONS

This study was conducted to examine the effects of nurses' difficulties in quitting smoking and their socio-demographic characteristics on Nicotine addictions. A cross-sectional study was conducted between August and November 2022. The study reached 410 nurses. The Fagerström Test for Nicotine Dependence and the challenges to stopping smoking were used in the study. In the analysis of data; percentage, number, and linear regression techniques were used. It was determined that 30.3% of the nurses had high Nicotine Addiction. It was determined that the mean score of the Internal factors sub-dimension of the Nurses' challenges to stopping smoking was 28.89±8.06, the mean score of the Extrinsic Factors sub-dimension was 23.07±8.36, and the mean Nicotine Addiction scale score was 4.20±2.51. It was determined that the smoking nurse's age, perceived income level, smoking duration, and internal factors sub-dimension of the difficulties in quitting smoking had a 34% effect on the Nicotine addiction test. It was determined that the smoking addiction levels of the nurses who had difficulties in quitting smoking were higher. The Extrinsic Factors sub-dimension of the challenges to stopping smoking of nurses who smoked did not affect Nicotine Addiction status.

The harmful effects of smoking and factors affecting smoking: maximal voluntary breath-holding time and exercise capacity

Aim: The harmful effects of smoking and its impact on respiratory functions and exercise capacity are well-recognized health concerns in the present day, demanding further investigation. This study aims to assess the association between smoking and respiratory functions and exercise capacity while exploring factors contributing to smoking addiction. Methods: A total of 893 volunteers (mean age: 27.24 years, range: 17-67) participated in this study, with 77% having a university education and 58% being female. Participants were categorized into active smokers, passive smokers, and non-smokers. Maximum Voluntary Breath-holding Time , 6-minute walk test distance, and 30-second chair stand test were used to assess respiratory functions and exercise capacity. Participants provided information about their smoking habits, which was analyzed and reported. Results: There were no statistically significant differences in Maximum Voluntary Breath-holding Time, 6-minute walk test distance, and 30-second chair stand test scores between the groups (p&gt;0.05). However, all smokers exhibited psychological dependence on cigarettes, with 88% showing signs of physical dependence. Smoking initiation was significantly influenced by friends (64%). While 61% of active smokers acknowledged potential health issues associated with smoking, only 92% had not sought medical advice to quit smoking. Conclusion: This study did not demonstrate a conclusive effect of cigarette consumption on respiratory functions and exercise capacity. However, it revealed a strong association between smoking habits and social factors such as friendships. Additionally, most smokers exhibited psychological and physical dependence on cigarettes, emphasizing the need for further research and awareness campaigns to highlight the detrimental consequences of smoking.

Relationship Between Lipid Profile and Body Mass Index in Patients With Polycystic Ovarian Syndrome: A Cross-Sectional Study Among Indian Women of Reproductive Age.

Introduction Characterized by a range of symptoms including irregular menstrual cycles, hirsutism, and infertility, polycystic ovarian syndrome (PCOS) also poses substantial metabolic challenges. Among these, dyslipidemia and obesity are particularly concerning due to their long-term implications for cardiovascular health.The present study explores the intricate relationship between lipid profile and body mass index (BMI) in patients with PCOS presenting to the Department of Obstetrics and Gynaecology,King George's Medical University, Lucknow, a tertiary care teaching hospital in Northern India. Methods The present work involves analysis of clinical characteristics of 230 premenopausal women between 18-45 years of age diagnosed with PCOS (according to Rotterdam Criteria). Patientswith conditions such as congenital adrenal hyperplasia; Cushing's syndrome; uncontrolled hypertension, smoking,hypogonadism; using oral contraceptives; pregnant or lactating mothers; smoking or drug addiction; psychiatric illness; and those diagnosed with androgen-secreting tumors were excluded. For each participant, data was collected pertaining to demographics (age, marital status), clinical presentation,height, and weight (for BMI calculation), and total lipid profile comprising of total cholesterol, triglycerides, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and very low-density lipoprotein cholesterol (VLDL-C). Thepatients were stratified according to their BMI as per the WHO Asian classification, andPearson's correlation coefficient was calculated to see the correlation between lipid profile and BMI. Results The final analysis was done on 228 patients, with a mean age of25.22 (±4.82) years, and 45.6% were currently married. Among the participants, 28.1% of the participants were overweight, and 42.5% of them classified as obese, while the remaining 29.4% had a BMI in the normal range.The mean (SD) total cholesterol was 172.26 (49.55) mg/dl, and 65 patients (28.5%) had elevated serum cholesterol (≥200 mg/dl). Triglycerides were raised (≥ 150 mg/dl) in a majority of the study participants (n=160, 70.2%). While none of the patients had high VLDL-C, LDL-C was elevated in 52 patients (22.8%). HDL-C levels were lower than the threshold value of 50 mg/dl in 152 participants (66.7%). On performing correlation analysis, a significant negative correlation was noted between HDL-C and BMI in the entire study cohort (r=-0.342, p=0.003). Overweight patientsexhibited a statistically significant positive correlation between triglycerides and BMI (r=2.628, p=0.002). Participants with BMI in the overweight range demonstrated statistically significant correlations with HDL-C (r=-0.497, p=0.017) and triglycerides (r=2.628, p=0.002); and BMI of obese patients significantly correlated with total cholesterol (r=0.301, p=0.037) and triglycerides (r=0.146, p=0.028). Conclusion The findings of the study underscore the multifaceted nature of PCOS, affecting reproductive health as well as metabolic components. The significant correlations between BMI and lipid parameters, specifically, HDL-C, triglycerides, and total cholesterol, highlight the importance of weight management in reducing cardiovascular risks in women with PCOS.

Perceptions of the Addictiveness of Low-Nicotine Cigarettes Versus Typical Cigarettes and Exposure to Tobacco Industry-Sponsored Corrective Campaign

Background In 2017, the U.S. Food and Drug Administration (FDA) announced a regulatory plan to reduce the nicotine content of cigarettes. This study examines the association of exposure to industry-sponsored corrective statements on perceptions of the addictiveness of low-nicotine cigarettes relative to typical cigarettes within the general US population. Methods The study comprised 4975 US adult respondents of the 2019 Health Information National Trends Survey (HINTS 5, Cycle 3). Multinomial logistic regression models were used to examine associations between exposure to tobacco industry corrective messages and perceptions of the addictiveness of low-nicotine cigarettes relative to typical cigarettes. Results In the overall population, 4.1% reported that low-nicotine cigarettes were much more addictive than typical cigarettes, 67.5% said they were equally addictive, while 28.4% reported they were slightly/much less addictive. Adults exposed to industry-sponsored corrective messages had higher odds of perceiving low-nicotine cigarettes as equally addictive as typical cigarettes (aOR 1.57; 95% CI, 1.13–2.19) than those who saw no corrective messages. Those exposed to the corrective messages specifically about the addictiveness of smoking and nicotine had higher odds of perceiving low-nicotine cigarettes as equally addictive as typical cigarettes (aOR, 1.73; 95% CI, 1.07–2.81) compared to those who saw no corrective message. Conclusions Our findings suggest that exposure to court-ordered tobacco industry corrective statements may have reinforced perceptions on the addictive potential of nicotine. However, study findings indicate a need for campaigns specifically tailored to address misperceptions observed in this study.

Systems Genetics Analyses Reveals Key Genes Related to Behavioral Traits in the Striatum of CFW Mice.

The striatum plays a central role in directing many complex behaviors ranging from motor control to action choice and reward learning. In our study, we used 55 male CFW mice with rapid decay linkage disequilibrium to systematically mine the striatum-related behavioral functional genes by analyzing their striatal transcriptomes and 79 measured behavioral phenotypic data. By constructing a gene coexpression network, we clustered the genes into 13 modules, with most of them being positively correlated with motor traits. Based on functional annotations as well as Fisher's exact and hypergeometric distribution tests, brown and magenta modules were identified as core modules. They were significantly enriched for striatal-related functional genes. Subsequent Mendelian randomization analysis verified the causal relationship between the core modules and dyskinesia. Through the intramodular gene connectivity analysis, Adcy5 and Kcnma1 were identified as brown and magenta module hub genes, respectively. Knock outs of both Adcy5 and Kcnma1 lead to motor dysfunction in mice, and KCNMA1 acts as a risk gene for schizophrenia and smoking addiction in humans. We also evaluated the cellular composition of each module and identified oligodendrocytes in the striatum to have a positive role in motor regulation.

The Effects of Changes in Cigarette Menthol Content on Acute Nicotine Pharmacology and Smoking Topography.

Menthol influences the appeal and addictiveness of cigarette smoking, however the data regarding menthol's effects on nicotine pharmacokinetics (PK) and smoking topography are inconsistent. This study investigated the impact of different cigarette menthol levels on nicotine pharmacology and smoking topography in current menthol smokers. The study was a double-blind, randomized, four-period, crossover study to investigate the effects of smoking cigarettes with varying menthol content (0, 3, 6, and 12mg menthol) on nicotine PK, smoking topography, and subjective effects in current menthol smokers. Each experimental session consisted of a prescribed use session, followed by 145min of no smoking and a 1-h ad libitum smoking session. Serial blood samples were collected; smoking topography was recorded using CReSS Lab topography device. There was no significant effect of menthol on nicotine PK after prescribed smoking of cigarettes with varying menthol contents. During ad libitum smoking, there was significantly smaller total puff volume and puff duration in the 12mg menthol condition compared to other menthol conditions. Subjective and sensory measures indicated significantly higher overall positive ratings for the 3mg and 6mg menthol cigarettes compared to the 0mg menthol cigarette; the 12mg menthol cigarette was less liked and harsher than the 3mg condition. These findings suggest that menthol, at concentrations reflecting the marketplace (3-6mg), contributes to positive subjective smoking experiences among menthol smokers, but does not have a significant effect on nicotine PK or smoking topography in an acute laboratory setting. While our data indicate that varying menthol content does not have a significant impact on nicotine's pharmacological effects under acute exposure conditions, these data highlight the contribution of menthol's flavor and sensory effects to product preference and positive smoking experiences, which facilitate repeated experimentation, progression to regular use, and subsequent dependence.

Perceptions of Tobacco Price Policy among Students from Sapienza University of Rome: Can This Policy Mitigate Smoking Addiction and Its Health Impacts?

Tobacco use is one of the main risk factors for non-communicable diseases. Avoiding youth initiation and treating addiction are fundamental public health issues to ensure better health. Among tobacco control policies, increasing tobacco price is the single most effective intervention. It reduces tobacco consumption, especially among youths, while representing a government financing source. This study aimed to assess the agreement with the proposal of a one-euro increase in tobacco price earmarked to health issues among students at Sapienza University. Two convenience samples were surveyed, five years apart, on World No Tobacco Days. Smoking habits, agreement with the proposal and reasons for it were collected. Results from the 208 questionnaires (107 in 2014, 101 in 2019) showed 46.6% of agreement with the proposal (53.3% in 2014, 39.2% in 2019, p = 0.044). Main predictive factor for agreement was being a non-smoker (OR = 6.33 p < 0.001), main reason (64.8%) was it could trigger smokers to quit or reduce consumption. Several factors might have influenced this finding, including the introduction of novel tobacco products and their increased advertisement on social media. In 2024, European Union is planning to update the Tobacco Taxation Directive which could greatly contribute to the reduction of non-communicable diseases and premature deaths.

Changes in Smoking Behavior in the COVID-19 Pandemic: A Single Center Study in Family Practice

Objective: There are controversial studies on smoking addiction in the COVID-19 pandemic. While some studies show increased tobacco use during the pandemic, others report increased smoking cessation attempts. This study examined changes in tobacco use and quit intentions during the COVID-19 pandemic compared to pre-pandemic. Methods: A cross-sectional study was designed and three groups were formed by including patients over 18 years of age, who were smokers, and who presented to the Education Family Health Center and had RT-PCR test results for COVID-19. Among these patients, patients with COVID-19 symptoms and complaints and positive RT-PCR test results constituted the COVID-19 positive group, patients who were COVID-19 negative but isolated due to their contacts constituted the contact group, and healthy people without any COVID-19 contact and symptoms constituted the healthy group. Demographic characteristics, smoking status before the COVID-19 pandemic, change in smoking status after COVID-19 test result or contact, and Fagerström nicotine dependence test results were compared. Results: Of the total 131 participants enrolled in the study, 70 were in the healthy group, 31 were in the COVID-19 negative group, and 30 were in the COVID-19 positive group. Men were predominant in three groups (60%, 83.9%, and 73.3% in normal, COVID-19-neg, and COVID-19-positive groups, respectively) with a small significant difference (p=0.048). The mean ages were 41.09±12.85, 38.21±11.69, and 39.47±11.66 years in the healthy, COVID-19 negative, and COVID-19 positive groups, respectively, with no significant difference (p&gt;0.05). Fagerström dependence scores were 1.82±1.05, 1.53±0.86, and 1.40±0.72 in the healthy, COVID-19 negative, and COVID-19 positive groups, respectively, and were not statistically different (p&gt;0.05). Smoking prevalence decreased by 1.13 (±4.17) cigarettes per day in the healthy group, by 3.97 (±5.31) cigarettes in the COVID negative group, and by 10.14 (±7.86) cigarettes in the COVID positive group, with a statistically significant decrease in smoking prevalence in all three groups (p

Analysis of changes in intrinsic neural timescales in male smoking addicts based on whole brain resting-state functional magnetic resonance imaging

Objective: To investigate the abnormal changes of intrinsic neural time scale (INT) in male smoking addicts based on whole brain resting state functional magnetic resonance imaging (rs-fMRI). Methods: A case-control study. The clinical data and whole brain rs-fMRI data of 139 male subjects, aged (34.1±8.8) years, recruited through the online platform from January 2019 to December 2021 were retrospectively analyzed. According to the existence of smoking addiction, they were divided into smoking addiction group (n=83) and healthy control group (n=56).INT was calculated to reflect the brain neural activity dynamics. Single sample t test was used to obtain the whole brain spatial distribution maps of INT in smoking addiction group and the control group. Then two-sample t test was conducted to explore the difference of INT between the smoking addition group and the healthy control group, with age and years of education as covariates. Finally, Spearman correlation analysis was used to explore the relationship between INT and nicotine dependence scale score and smoking index. Results: Subjects with smoking addiction and healthy control group showed a similar pattern of hierarchical neural timescales, namely shorter INT in sensorimotor areas and longer INT in parietal lobe, posterior cingulate cortex. In addition, in the smoking addiction group, the left medial occipital gyrus (peak t=-3.18), left suproccipital gyrus (peak t=-3.66), bilateral pericalar cleft cortex (left: peak t=-3.02, right: peak t=-3.22), bilateral lingual gyrus (left: peak t=-3.10, right: t peak=-3.04), left cuneus (peak t=-2.97), default network associated brain region [left anterior cuneus(peak t=-3.23), left angular gyrus (peak t=-3.07), and left posterior cingulate cortex (peak t=-3.54) were significantly lower than those of healthy controls (gaussian random field correction, voxel level all P<0.005, mass level all P<0.05). However, there was no significant correlation between INT and nicotine dependence scale score and smoking index (both P>0.05 after Bonferroni correction). Conclusion: Compared with healthy controls, smoking addicts showed abnormal changes in the dynamics of neural activity in the visual cortex and the default network.

Heavy metal association with chronic kidney disease of unknown cause in central India-results from a case-control study

BackgroundChronic Kidney Disease of unknown cause (CKDu) a disease of exclusion, and remains unexplained in various parts of the world, including India. Previous studies have reported mixed findings about the role of heavy metals or agrochemicals in CKDu. These studies compared CKDu with healthy controls but lacked subjects with CKD as controls. The purpose of this study was to test the hypothesis whether heavy metals, i.e. Arsenic (As), Cadmium (Cd), Lead (Pb), and Chromium (Cr) are associated with CKDu, in central India.MethodsThe study was conducted in a case-control manner at a tertiary care hospital. CKDu cases (n = 60) were compared with CKD (n = 62) and healthy subjects (n = 54). Blood and urine levels of As, Cd, Pb, and Cr were measured by Inductively Coupled Plasma- Optical Emission Spectrometry. Pesticide use, painkillers, smoking, and alcohol addiction were also evaluated. The median blood and urine metal levels were compared among the groups by the Kruskal-Wallis rank sum test.ResultsCKDu had significantly higher pesticide and surface water usage as a source of drinking water. Blood As levels (median, IQR) were significantly higher in CKDu 91.97 (1.3–132.7) µg/L compared to CKD 4.5 (0.0–58.8) µg/L and healthy subjects 39.01 (4.8–67.4) µg/L (p < 0.001) On multinominal regression age and sex adjusted blood As was independently associated with CKDu[ OR 1.013 (95%CI 1.003–1.024) P < .05].Blood and urinary Cd, Pb, and Cr were higher in CKD compared to CKDu (p > .05). Urinary Cd, Pb and Cr were undetectable in healthy subjects and were significantly higher in CKDu and CKD compared to healthy subjects (P = < 0.001). There was a significant correlation of Cd, Pb and Cr in blood and urine with each other in CKDu and CKD subjects as compared to healthy subjects. Surface water use also associated with CKDu [OR 3.178 (95%CI 1.029–9.818) p < .05).ConclusionThe study showed an independent association of age and sex adjusted blood As with CKDu in this Indian cohort. Subjects with renal dysfunction (CKDu and CKD) were found to have significantly higher metal burden of Pb, Cd, As, and Cr as compared to healthy controls. CKDu subjects had significantly higher pesticide and surface water usage, which may be the source of differential As exposure in these subjects.