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1.
Cancer ; 130(14): 2482-2492, 2024 Jul 15.
Article in English | MEDLINE | ID: mdl-38546445

ABSTRACT

OBJECTIVE: To describe the workflow, reach, cost, and self-reported quit rates for an opt-out tobacco treatment program (TTP) for patients seen in 43 oncology outpatient clinics. METHODS: Between May 25, 2021, and December 31, 2022, adult patients (≥18 years) visiting clinics affiliated with the Medical University of South Carolina Hollings Cancer Center were screened for smoking status. Those currently smoking were referred to a telehealth pharmacy-assisted TTP. An attempt was made to contact referred patients by phone. Patients reached were offered free smoking cessation counseling and a 2-week starter kit of nicotine replacement medication. A random sample of 420 patients enrolled in the TTP were selected to participate in a telephone survey to assess smoking status 4 to 12 months after enrollment. RESULTS: During the reference period 35,756 patients were screened and 9.3% were identified as currently smoking. Among the 3319 patients referred to the TTP at least once, 2393 (72.1%) were reached by phone, of whom 426 (12.8%) were ineligible for treatment, 458 (13.8%) opted out of treatment, and 1509 (45.5%) received treatment. More than 90% of TTP enrollees smoked daily, with an average of 13.1 cigarettes per day. Follow-up surveys were completed on 167 of 420 patients, of whom 23.4% to 33.5% reported not smoking; if all nonresponders to the survey are counted as smoking, the range of quit rates is 9.3% to 13.3%. CONCLUSION: The findings demonstrate the feasibility of reaching and delivering smoking cessation treatments to patients from a diverse set of geographically dispersed oncology clinics.


Subject(s)
Smoking Cessation , Telemedicine , Humans , Male , Female , Middle Aged , Smoking Cessation/methods , Adult , Aged , Neoplasms/therapy , Pharmacists , Ambulatory Care Facilities , Tobacco Use Cessation Devices
2.
Nicotine Tob Res ; 26(1): 31-38, 2024 Jan 01.
Article in English | MEDLINE | ID: mdl-37474127

ABSTRACT

INTRODUCTION: This study sought to compare medication efficacy in participants with medical comorbidities who smoke in the Evaluating Adverse Events in a Global Smoking Cessation Study (EAGLES) trial, a double-blind, triple-dummy, placebo- and active-controlled randomized controlled trial. AIMS AND METHODS: Participants were from the U.S. cohort of the main trial and randomized (1:1:1:1) to varenicline, bupropion, nicotine replacement therapy (NRT) patch, or placebo for 12 weeks with follow-up through week 24. Medical comorbidity data were derived from the baseline medical screening questionnaire and categorized into four subgroups (cardiac, respiratory, vascular, and diabetes). Within each comorbidity, generalized linear mixed models were used to assess the association between treatment and continuous abstinence rates from weeks 9-12 to 9-24. Similar models were used to test the effect of number of comorbidities on abstinence. RESULTS: Varenicline resulted in the highest week 12 abstinence rates across all pharmacotherapies and compared to placebo in all comorbidity subgroups: Cardiac (40.0% vs. 3.6%; odds ratios [OR] = 23.3 [5.1-107.1]), respiratory (24.7% vs. 12.8%; OR = 2.2 [1.3-3.8]), vascular (29.1% vs. 10.4%; OR = 3.6 [2.3-5.7]), and diabetes (30.9% vs. 8.3%; OR = 6.5 [2.3-19.0]). This was maintained at week 24 for those with cardiac (23.3% vs. 1.8%; OR = 21.7 [2.7-178.2]), vascular (18.9% vs. 7.1%; OR = 3.1 [1.8-5.3]), and diabetes (20.6% vs. 4.2%; OR = 8.4 [2.1-33.7]) comorbidities. Treatment contrasts within some comorbidity subgroups revealed superior efficacy of varenicline over other pharmacotherapies. All pharmacotherapies increased the odds of abstinence regardless of number of comorbidities. CONCLUSIONS: Varenicline is the most efficacious option for patients with manageable cardiac, respiratory, vascular, and diabetes conditions to quit smoking, supporting recent clinical practice guidelines that recommend varenicline as first-line pharmacotherapy. Bupropion and NRT demonstrated efficacy for some comorbidity subgroups. IMPLICATIONS: This secondary analysis of the EAGLES trial demonstrated that varenicline is the most efficacious option for patients with cardiac, respiratory, vascular, and diabetes diagnoses to quit smoking. This demonstration of varenicline efficacy among individuals with comorbid medical conditions supports recent clinical practice guidelines that recommend varenicline as a first-line pharmacotherapy for smoking cessation.


Subject(s)
Diabetes Mellitus , Smoking Cessation , Humans , Smoking Cessation/methods , Varenicline , Bupropion/adverse effects , Nicotinic Agonists/therapeutic use , Tobacco Use Cessation Devices/adverse effects , Comorbidity , Diabetes Mellitus/chemically induced , Diabetes Mellitus/drug therapy , Treatment Outcome , Benzazepines/therapeutic use , Quinoxalines/therapeutic use
3.
J Cancer Educ ; 2024 Sep 06.
Article in English | MEDLINE | ID: mdl-39237801

ABSTRACT

Smoking by cancer patients impairs treatment outcomes and prognoses across cancer types. Previous research shows greater smoking cessation motivation and quit rates among patients with cancers strongly linked to smoking (i.e., thoracic, head and neck) compared to other cancer types (e.g., melanoma). Therefore, there is a need to increase cessation motivation among patients with malignancies less commonly associated with smoking. Yet, no targeted educational materials exist to meet this information gap. This manuscript describes the development of theory-based self-help educational materials, targeted by cancer type, to increase motivation to quit smoking among patients with cancers not widely perceived as smoking-related (i.e., breast, melanoma, bladder, colorectal, gynecological). Using a three-phase iterative process, we first conducted in-depth interviews with our intended audience (N = 18) to identify information needs and nuanced content. Themes included patients' low knowledge about the connection between smoking and cancer etiology and outcomes; negative affect, habit, dependence, and weight gain as quitting barriers; and a preference for positive and non-judgmental content. Second, content creation was based on interview findings, the scientific literature, and framed following the teachable moment model. Last, learner verification and revisions via interviews with 22 patients assessed suitability of draft materials, with generally favorable responses. Resulting edits included tailoring cost savings to the cancer context, explaining cessation medications, and increasing appeal by improving the diversity (e.g., race) of the individuals in the photographs. The final booklets are low cost, easy to disseminate, and-pending efficacy studies-may expand smoking cessation to a wider spectrum of cancer patients.

4.
Cancer ; 129(15): 2385-2394, 2023 08 01.
Article in English | MEDLINE | ID: mdl-37211959

ABSTRACT

BACKGROUND: Understanding the relationship between tobacco use and symptom burden may inform tobacco treatment interventions tailored to the needs of individuals with cancer. METHODS: The study included 1409 adult cancer survivors from Wave 5 of the US Food and Drug Administration Population Assessment of Tobacco and Health (PATH) Study. A multivariate analysis of variance controlling for age, sex, and race/ethnicity assessed the association of cigarette smoking and vaping on cancer-related symptom burden (fatigue, pain, emotional problems) and quality of life (QoL). Generalized linear mixed models controlling for the same factors were used to assess associations among symptom burden, QoL, and quit-smoking intentions, quit-smoking likelihood, and past 12-month smoking quit attempts. RESULTS: Weighted rates of current cigarette smoking and vaping were 14.21% and 2.88%, respectively. Current smoking was associated with greater fatigue (p < .0001; partial η 2  = .02), pain (p < .0001; partial η 2  = .08), emotional problems (p < .0001; partial η 2  = .02), and worse QoL (p < .0001; partial η 2  = .08). Current vaping was associated with greater fatigue (p = .001; partial η 2  = .008), pain (p = .009; partial η 2  = .005), and emotional problems (p = .04; partial η 2  = .003), but not worse QoL (p = .17). Higher cancer symptom burden was not associated with reduced interest in quitting, likelihood of quitting, or odds of past year quit attempts (p > .05 for each). CONCLUSIONS: Among adults with cancer, current smoking and vaping were associated with greater symptom burden. Survivors' interest in and intentions to quit smoking were not related to symptom burden. Future research should examine the role of tobacco cessation in improving symptom burden and QoL.


Subject(s)
Cigarette Smoking , Electronic Nicotine Delivery Systems , Neoplasms , Smoking Cessation , Tobacco Products , Vaping , Adult , Humans , Quality of Life , Smoking Cessation/psychology , Cigarette Smoking/epidemiology , Pain/epidemiology , Pain/etiology , Vaping/epidemiology , Fatigue/epidemiology , Fatigue/etiology , Tobacco Products/adverse effects , Neoplasms/epidemiology
5.
Tob Control ; 2023 Jan 17.
Article in English | MEDLINE | ID: mdl-36650050

ABSTRACT

BACKGROUND: The use of e-cigarettes has been increasing, especially since the introduction of 'pod' devices to the marketplace since 2018. Most adults who vape report interest in quitting. The present study examined level of interest in e-cigarette cessation between users with varying cigarette smoking histories and device types. METHODS: Data obtained from wave 5 (2018-2019) of the Population Assessment of Tobacco and Health study (n=34 309). Analyses were conducted on adult current established e-cigarette users, categorised on cigarette smoking history (current, former or never) and device type (disposable, cartridge/pod, tank or mod). Participants reported if they planned to ever quit e-cigarettes, attempted to quit in the past year and attempted to quit by cutting back in the past year. RESULTS: Of the 2922 established e-cigarette users, 68.21% reported plans to quit vaping; 17.27% reported attempting to quit e-cigarettes in the past year; and 29.28% reported attempting to quit by cutting back in the past year. Cartridge users had higher odds of interest in quitting than tank and mod users. Disposable and cartridge users had higher odds of reporting a past year quit attempt than tank and mod users. Individuals with no smoking history had higher odds of reporting a past year quit attempt or cutting back relative to those reporting dual use (of both e-cigarettes and cigarettes) and former smoking. CONCLUSIONS: Tobacco control should consider the type of e-cigarette device that is being used, alongside users' cigarette smoking history, when developing interventions and other resources for vaping cessation.

6.
Nicotine Tob Res ; 24(1): 3-9, 2022 01 01.
Article in English | MEDLINE | ID: mdl-34270729

ABSTRACT

The introduction of alternative nicotine and tobacco products (such as e-cigarettes, heat-not-burn devices, nicotine pouches) warrants an updated framework from which to conceptualize tobacco use disorder (TUD). The following review provides considerations for TUD within the context of novel products. Historically, the tobacco industry falsely claimed that cigarettes were not addictive or harmful and that those who smoked simply chose to do so. This generated an inaccurate lay perception that smoking is a free or informed choice. Research on nicotine pharmacology demonstrates the powerful addictive potential of nicotine, which is shaped by dose, speed of delivery, and other constituents generated. In addition, non-pharmacologic reinforcers motivate and maintain tobacco use behaviors for both traditional cigarettes and novel products. The negative consequences of combustible tobacco use are well known; however, these outcomes may differ for alternative products. Strategies used for combustible product cessation may be adapted for novel products, and treatment recommendations for TUD should be made within the context of a harm reduction framework wherein alternative product use may be the desired outcome. Providers must therefore be willing to modify their perceptions of products and treatment recommendations accordingly. Better public health outcomes are accomplished through promotion of abstinence from combustible smoking. For those who cannot wean from nicotine entirely, switching to less risky modes of delivery might be a secondary goal, with an eventual aim of stopping use of the alternative product. Implications: Given the advent of novel, alternative tobacco products, tobacco use disorder (TUD) must be conceptualized within a contemporary framework that includes harm reduction and alternative outcomes. The unique contributions of nicotine pharmacology, non-pharmacologic reinforcers, and consequences of use can be used to inform treatments for TUD with the ultimate goal of improving the health of individuals who use tobacco.


Subject(s)
Electronic Nicotine Delivery Systems , Tobacco Products , Tobacco Use Disorder , Humans , Tobacco Use Cessation Devices , Tobacco Use Disorder/therapy
7.
Cancer ; 126(23): 5165-5172, 2020 12 01.
Article in English | MEDLINE | ID: mdl-32902856

ABSTRACT

BACKGROUND: Abstaining from smoking after a cancer diagnosis is critical to mitigating the risk of multiple adverse health outcomes. Although many patients with cancer attempt to quit smoking, the majority relapse. The current randomized controlled trial evaluated the efficacy of adapting an evidence-based smoking relapse prevention (SRP) intervention for patients with cancer. METHODS: The trial enrolled 412 patients newly diagnosed with cancer who had recently quit smoking. Participants were randomized to usual care (UC) or SRP. Participants in the UC group received the institution's standard of care for treating tobacco use. Participants in the SRP group in addition received a targeted educational DVD plus a validated self-help intervention for preventing smoking relapse. The primary outcome was smoking abstinence at 2 months, 6 months, and 12 months. RESULTS: Abstinence rates for participants in the SRP and UC groups were 75% versus 71% at 2 months and 69% versus 64% at 6 months (Ps > .20). At 12 months, abstinence rates among survivors were 68% for those in the SRP group and 63% for those in the UC group (P = .38). Post hoc analyses revealed that across 2 months and 6 months, patients who were married/partnered were more likely to be abstinent after SRP than UC (P = .03). CONCLUSIONS: A smoking relapse prevention intervention did not reduce relapse rates overall, but did appear to have benefited those participants who had the social support of a partner. Future work is needed to extend this effect to the larger population of patients.


Subject(s)
Neoplasms , Smoking Prevention/methods , Female , Follow-Up Studies , Humans , Male , Middle Aged , Patient Satisfaction , Recurrence , Smoking Cessation/statistics & numerical data , Smoking Prevention/statistics & numerical data , Social Support
8.
Nicotine Tob Res ; 22(5): 764-770, 2020 04 21.
Article in English | MEDLINE | ID: mdl-30883640

ABSTRACT

INTRODUCTION: Although some smokers switch to exclusive use of electronic cigarettes (e-cigarettes), others become dual users of combustible cigarettes and e-cigarettes. Little is known about how the onset of vaping affects the use of and dependence on combustible cigarettes or total nicotine use and dependence, which may influence health-related and cessation outcomes. Using self-report data of current combustible and e-cigarette use and retrospective recall of pre-vaping smoking in a sample of dual users, the aims of this study were (1) to compare pre- and post-vaping number of cigarettes per day and combustible cigarette dependence; (2) to compare pre- and post-vaping total nicotine use frequency (number of vaping sessions and cigarettes smoked per day), and total nicotine dependence; and (3) to examine predictors of nicotine dependence. METHODS: We used baseline data from a smoking cessation trial with 2896 dual users. Nicotine use frequency and the Heaviness of Smoking Index were used as measures of nicotine use and dependence, respectively. RESULTS: Participants decreased cigarettes/day from pre- (M = 19.24, SD = 9.01) to post-vaping (M = 11.15, SD = 8.02, p < .0001) and combustible cigarette dependence declined from pre- (M = 3.55, SD = 1.51) to post-vaping (M = 2.11, SD = 1.60, p < .0001). Total daily nicotine use frequency increased after initiating vaping (M = 19.25, SD = 9.01 vs. M = 29.46, SD = 8.61; p < .0001), as did total nicotine dependence (M = 3.55, SD = 1.51 vs. M = 4.68, SD = 1.38; p < .0001). Hierarchical regression analyses indicated that variables associated with greater overall nicotine dependence included: younger age, lower education, more years smoking, higher pre-vaping nicotine dependence, using e-cigarettes more days per month, more puffs per vaping session, higher e-liquid nicotine concentration, and longer vaping history. CONCLUSIONS: Dual use leads to a reduction in the number of combustible cigarettes, but total nicotine use and dependence increases. IMPLICATIONS: In dual users, a reduction in smoking following onset of vaping may offer some harm reduction via reduction in cigarette intake. However, the increase in total nicotine use and dependence could affect the ability to quit either or both products.


Subject(s)
Electronic Nicotine Delivery Systems/statistics & numerical data , Smokers/psychology , Smoking Cessation/psychology , Tobacco Smoking/psychology , Tobacco Use Disorder/psychology , Vaping/psychology , Adult , Female , Harm Reduction , Humans , Male , Retrospective Studies , Self Report , Tobacco Smoking/epidemiology , Tobacco Use Disorder/epidemiology , United States/epidemiology , Vaping/epidemiology
9.
Contact Dermatitis ; 81(1): 37-42, 2019 Jul.
Article in English | MEDLINE | ID: mdl-30779160

ABSTRACT

BACKGROUND: Lavender is commonly used in aromatherapy and in a broad range of personal and household products. It has been identified as a contact sensitizer, and has been reported to cause allergic contact dermatitis (ACD). OBJECTIVES: To report our experience with contact allergy and ACD caused by lavender, and to raise awareness of lavender as a potential contact allergen. METHOD: A retrospective database review was performed of patients attending patch testing clinics at the Skin and Cancer Foundation, Victoria, Australia, from January 1, 1993 to December 31, 2017. RESULTS: Among the 2178 patients patch tested with lavender over this period, a total of 58 positive reactions were recorded in 49 individuals, giving a positive patch test prevalence for patients tested with lavender of 2.2%. Twenty-seven patients were diagnosed with ACD. The most common sources of exposure to lavender were personal care products and essential oils. Of the patients with ACD, 74% were tested with lavender absolute, with positive results in 90% of cases. CONCLUSION: Lavender is an uncommon cause of ACD but is important to consider, given the potential for exposure through the use of personal care items and essential oils.


Subject(s)
Dermatitis, Allergic Contact/etiology , Lavandula/adverse effects , Adult , Aged , Australia , Cosmetics/adverse effects , Cosmetics/chemistry , Female , Humans , Male , Middle Aged , Oils, Volatile/adverse effects , Oils, Volatile/chemistry , Patch Tests , Retrospective Studies , Young Adult
10.
Contact Dermatitis ; 75(4): 213-22, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27436328

ABSTRACT

BACKGROUND: Healthcare workers (HCWs) are at risk of developing occupational skin disease (OSD). OBJECTIVES: To ascertain the causes of OSD in Australian HCWs in a tertiary referral clinic. METHODS: A retrospective review was performed of patients assessed at the Occupational Dermatology Clinic in Melbourne from 1993 to 2014. RESULTS: Of 685 HCWs assessed in the clinic over a period of 22 years, 555 (81.0%) were diagnosed with OSD. The most common diagnosis was irritant contact dermatitis (ICD) (79.1%), followed by allergic contact dermatitis (ACD) (49.7%). Natural rubber latex allergy was also relatively frequent (13.0%). The major substances causing ACD were rubber glove chemicals (thiuram mix and tetraethylthiuram disulfide), preservatives (formaldehyde, formaldehyde releasers, and isothiazolinones), excipients in hand cleansers, which are hard-to-avoid weak allergens, and antiseptics. ACD caused by commercial hand cleansers occurred more frequently than ACD caused by alcohol-based hand rubs (ABHRs). Occupational ICD was mostly caused by water/wet work and hand cleansers, and environmental irritants such as heat and sweating. CONCLUSIONS: Understanding the causes of OSD in HCWs is important in order to develop strategies for prevention. We suggest that skin care advice should be incorporated into hand hygiene education. The use of ABHRs should be encouraged, weak allergens in skin cleansers should be substituted, and accelerator-free gloves should be recommended for HCWs with OSD.


Subject(s)
Dermatitis, Allergic Contact/etiology , Dermatitis, Irritant/etiology , Dermatitis, Occupational/etiology , Hand Dermatoses/etiology , Health Care Sector , Health Personnel , Latex Hypersensitivity/etiology , Adolescent , Adult , Aged , Allergens/adverse effects , Anti-Infective Agents, Local/adverse effects , Australia , Dermatitis, Allergic Contact/diagnosis , Dermatitis, Irritant/diagnosis , Dermatitis, Occupational/diagnosis , Disinfectants/adverse effects , Disulfiram/adverse effects , Female , Formaldehyde/adverse effects , Fungicides, Industrial/adverse effects , Gloves, Protective/adverse effects , Hand Dermatoses/diagnosis , Humans , Irritants/adverse effects , Latex Hypersensitivity/diagnosis , Male , Middle Aged , Patch Tests , Retrospective Studies , Thiram/adverse effects , Young Adult
11.
Australas J Dermatol ; 57(2): 108-14, 2016 May.
Article in English | MEDLINE | ID: mdl-26184480

ABSTRACT

OBJECTIVES: To describe the characteristics of patients with occupational skin disease (OSD) in a tertiary referral clinic in Victoria, Australia. METHODS: A retrospective review was conducted of records from patients seen at the Occupational Dermatology Clinic in Melbourne, Australia between 1 January 1993 and 31 December 2010. RESULTS: Of the 2894 people assessed in the clinic during the 18-year period, 44% were women and 56% were men. In all, 2177 (75%) were diagnosed with occupational skin disease (OSD). Of the patients with a work-related skin condition, 45% (n = 979) were considered to be atopic. The most common diagnosis in those with OSD was irritant contact dermatitis (ICD) (44%), followed by allergic contact dermatitis (33%) and endogenous eczema (11%). Women were significantly more likely to have soaps and detergents (P < 0.001) and water/wet work (P < 0.001) as causes of their ICD than men. Men were significantly more likely to have oils and coolants (P < 0.001) and solvent exposures (P < 0.001) as causes of their ICD. Occupational groups with the highest incidence of OSD were the hair and beauty professions (70 per 100 000), followed by machine and plant operators (38 per 100 000) and health-care workers (21 per 100 000). CONCLUSION: We confirm the importance of occupational contact dermatitis as the most common cause of OSD, with ICD being the most common diagnosis. There are differences in the causes of ICD between our group of male and female workers. For the first time in Australia, rates of OSD in certain industries have been calculated.


Subject(s)
Dermatitis, Allergic Contact/epidemiology , Dermatitis, Irritant/epidemiology , Dermatitis, Occupational/epidemiology , Hand Dermatoses/epidemiology , Occupational Exposure/adverse effects , Adolescent , Adult , Aged , Aged, 80 and over , Barbering , Beauty Culture , Dermatitis, Allergic Contact/etiology , Dermatitis, Atopic/epidemiology , Dermatitis, Atopic/etiology , Dermatitis, Irritant/etiology , Dermatitis, Occupational/etiology , Detergents/adverse effects , Eczema/epidemiology , Eczema/etiology , Female , Health Care Sector , Humans , Incidence , Male , Middle Aged , Oils/adverse effects , Retrospective Studies , Sex Factors , Solvents/adverse effects , Victoria , Water/adverse effects , Young Adult
13.
Australas J Dermatol ; 56(4): 290-3, 2015 Nov.
Article in English | MEDLINE | ID: mdl-25367657

ABSTRACT

BACKGROUND: Allergic contact dermatitis (ACD) caused by chromium in cement is a significant occupational hazard. However, legislation in Europe over the past two decades to reduce the concentration of chromium in cement to <2 ppm through the addition of ferrous sulphate to cement, has seen a significant decrease in the incidence of chromium allergy. No such legislation exists in Australia. METHODS: A retrospective analysis of results from the Patchcams database of patients attending the Occupational Dermatology Clinic at the Skin & Cancer Foundation, Melbourne, who were patch tested for chromium between 1 January 1993 to 31 December 2013, was conducted. RESULTS: Our review revealed that there has not been any significant change in the number of cases of ACD to chromium attributed to sensitisation through cement. Based on our data, we estimate that a minimum of 24 cases of chromium occupational ACD (OACD) from cement is found in Australia yearly, causing considerable morbidity, often associated with an inability to work, costly workers' compensation claims and sometimes the development of the disabling condition, persistent post-occupational dermatitis. CONCLUSION: These findings highlight the need for high-level discussions about adopting European legislation in Australia in order to reduce the likelihood of developing chromium OACD from cement.


Subject(s)
Chromium/toxicity , Dermatitis, Allergic Contact/epidemiology , Dermatitis, Occupational/epidemiology , Occupational Exposure/adverse effects , Australia/epidemiology , Construction Materials/adverse effects , Dermatitis, Allergic Contact/etiology , Dermatitis, Occupational/etiology , Humans , Retrospective Studies
14.
FASEB J ; 27(7): 2788-98, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23568779

ABSTRACT

Bone marrow-derived human mesenchymal stem cells (hMSCs) either promote or inhibit cancer progression, depending on factors that heretofore have been undefined. Here we have utilized extreme hypoxia (0.5% O2) and concurrent treatment with metal carcinogen (nickel) to evaluate the passage-dependent response of hMSCs toward cancerous transformation. Effects of hypoxia and nickel treatment on hMSC proliferation, apoptosis, gene and protein expression, replicative senescence, reactive oxygen species (ROS), redox mechanisms, and in vivo tumor growth were analyzed. The behavior of late passage hMSCs in a carcinogenic hypoxia environment follows a profile similar to that of transformed cancer cells (i.e., increased expression of oncogenic proteins, decreased expression of tumor suppressor protein, increased proliferation, decreased apoptosis, and aberrant redox mechanisms), but this effect was not observed in earlier passage control cells. These events resulted in accumulated intracellular ROS in vitro and excessive proliferation in vivo. We suggest a mechanism by which carcinogenic hypoxia modulates the activity of three critical transcription factors (c-MYC, p53, and HIF1), resulting in accumulated ROS and causing hMSCs to undergo cancer-like behavioral changes. This is the first study to utilize carcinogenic hypoxia as an environmentally relevant experimental model for studying the age-dependent cancerous transformation of hMSCs.


Subject(s)
Cell Transformation, Neoplastic , Mesenchymal Stem Cells/drug effects , Mesenchymal Stem Cells/metabolism , Nickel/pharmacology , Animals , Blotting, Western , Cell Differentiation/drug effects , Cell Hypoxia , Cell Proliferation/drug effects , Cells, Cultured , DNA-Binding Proteins/genetics , DNA-Binding Proteins/metabolism , Female , Forkhead Transcription Factors/deficiency , Forkhead Transcription Factors/genetics , Gene Expression/drug effects , Humans , Hypoxia-Inducible Factor 1, alpha Subunit/genetics , Hypoxia-Inducible Factor 1, alpha Subunit/metabolism , Mice , Mice, Knockout , Mice, Nude , Neoplasms, Experimental/genetics , Neoplasms, Experimental/metabolism , Neoplasms, Experimental/pathology , Reactive Oxygen Species/metabolism , Reverse Transcriptase Polymerase Chain Reaction , Time Factors , Transcription Factors/genetics , Transcription Factors/metabolism , Transplantation, Heterologous , Tumor Burden/genetics , Tumor Suppressor Protein p53/genetics , Tumor Suppressor Protein p53/metabolism
15.
Exp Clin Psychopharmacol ; 32(1): 16-26, 2024 Feb.
Article in English | MEDLINE | ID: mdl-36913266

ABSTRACT

Despite decades of progress, cigarette smoking remains a significant contributor to disease burden. This effect is especially pronounced for specific priority populations, such as individuals who live in rural communities, in that the burden of tobacco smoking is greater among these groups than in urban areas and the general population. The present study aims to evaluate the feasibility and acceptability of two novel tobacco treatment interventions delivered through remote telehealth procedures to individuals who smoke in the state of South Carolina. Results also include exploratory analyses of smoking cessation outcomes. Study I evaluated savoring, a strategy based on mindfulness practices, alongside nicotine replacement therapy (NRT). Study II evaluated retrieval-extinction training (RET), a memory-modification paradigm alongside NRT. In Study I (savoring), recruitment and retention data showed high interest and engagement in the intervention components, and participants who received this intervention decreased cigarette smoking throughout the course of the treatment (ps < .05). In Study II (RET), results showed high interest and moderate engagement in treatment, although exploratory outcome analyses did not demonstrate significant treatment effects on smoking behaviors. Overall, both studies showed promise in generating interest among individuals who smoke in participating in remotely delivered, telehealth smoking cessation interventions with novel therapeutic targets. A brief savoring intervention appeared to have effects on cigarette smoking throughout treatment, whereas RET did not. Gaining insight from the present pilot study, future studies may improve the efficacy of these procedures and incorporate the treatment components into more robust available treatments. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Subject(s)
Smoking Cessation , Humans , Behavior Therapy , Nicotine Replacement Therapy , Pilot Projects , Smoking Cessation/methods , Tobacco Use Cessation Devices , Clinical Trials as Topic , Tobacco Products
16.
Australas J Dermatol ; 54(3): 213-7, 2013 Aug.
Article in English | MEDLINE | ID: mdl-22943875

ABSTRACT

Gallic acid esters or gallates are antioxidants used as preservatives in food and cosmetics. Few cases of gallates causing allergic contact dermatitis (ACD) have been reported in the literature. We present a case report of a 42-year-old beauty therapist who presented with a swollen tongue. Patch testing was positive to dodecyl gallate, commonly reported as being present in edible oil and oily foods such as margarine. Our patient avoided foods presumed to contain gallates and at the 6-week review reported a substantial improvement in her tongue symptoms. We reviewed our database and found 16 (7%) definitely or possibly relevant reactions to dodecyl gallate, seven (15%) definitely or possibly relevant reactions to propyl gallate and six (3%) definitely or possibly relevant reactions to octyl gallate. Most reactions were attributed to margarine, moisturising cream and lipstick. These products are often mentioned in the literature as containing gallates; however, ingredient labelling and discussions with manufacturers made it difficult to establish whether they are currently present in foods. Ascertaining relevance for these reactions is not always possible.


Subject(s)
Dermatitis, Allergic Contact/diagnosis , Facial Dermatoses/chemically induced , Food Preservatives/adverse effects , Gallic Acid/analogs & derivatives , Stomatitis/chemically induced , Adult , Aged , Aged, 80 and over , Dermatitis, Allergic Contact/drug therapy , Edema/chemically induced , Edema/diet therapy , Facial Dermatoses/drug therapy , Female , Gallic Acid/adverse effects , Humans , Male , Middle Aged , Patch Tests , Propyl Gallate/adverse effects , Stomatitis/drug therapy , Tongue Diseases/chemically induced , Tongue Diseases/diet therapy
17.
Addict Behav ; 139: 107579, 2023 04.
Article in English | MEDLINE | ID: mdl-36549102

ABSTRACT

Many adults express interest in e-cigarette cessation; however, there are few empirically tested interventions for quitting vaping. This study seeks to (1) evaluate reasons for quitting e-cigarettes in treatment-seeking adults, and (2) assess the feasibility and acceptability of nicotine replacement therapy (NRT) for e-cigarette cessation. Adult daily e-cigarette users completed qualitative interviews about quitting e-cigarettes, then were randomized to either 28-day supply of combination NRT (21 mg patches, 4 mg lozenges) + supportive booklet or Quitline referral. Primary aims were feasibility (number who enrolled) and acceptability (NRT use, adverse side effects). Exploratory aims evaluated abstinence (7-day point-prevalence) at end of treatment. Of the 30 participants who were enrolled, 50 % (n = 15) were dual users, and 50 % (n = 15) were mono-vapers, 26.6 % (n = 8) of whom were former smokers. Participants reported seeking treatment due to health concerns, dependence, stigma, and cost. Anticipated challenges of quitting vaping were withdrawal, negative mood, sensorimotor habits, and convenience. Most completed the end of treatment survey (n = 24; 80 %). Participants who received NRT reported using the patch M = 10.89 days and lozenges M = 6.39 days, with few days of adverse effects (M = 2.67). At end of treatment, 6/18 (33.3 %; 6 mono and 0 dual users) in the intervention group reported abstinence from vaping, compared to 0 in the control group (Fisher = 5.00, p =.057). In conclusion, adults are interested in quitting e-cigarettes due to negative consequences of use and are willing to use pharmacotherapy. Future research should confirm these results in a larger trial, address cigarette smoking in dual users, and aim to disseminate treatments.


Subject(s)
Alcoholism , Drug-Related Side Effects and Adverse Reactions , Electronic Nicotine Delivery Systems , Smoking Cessation , Vaping , Adult , Humans , Smoking Cessation/methods , Vaping/adverse effects , Tobacco Use Cessation Devices/adverse effects , Alcoholism/etiology , Tablets
18.
Am J Prev Med ; 65(3): 517-520, 2023 09.
Article in English | MEDLINE | ID: mdl-36878414

ABSTRACT

INTRODUCTION: Primary care visits present an opportune time to assess behaviors that contribute to patient health. Smoking, alcohol use, and illicit drugs are routinely documented in electronic health records, but less is known about screening for E-cigarette use and the prevalence of E-cigarette use in primary care settings. METHODS: Data include 134,931 adult patients who visited 1 of 41 primary care clinics within a 12-month period (June 1, 2021-June 1, 2022). Data on demographics, combustible tobacco, alcohol, illicit drug, and E-cigarette use were extracted from electronic medical records. Logistic regression was utilized to examine the variables associated with differential odds of being screened for E-cigarette use. RESULTS: Rates of E-cigarette screening (n=46,997; 34.8%) were significantly lower than that of tobacco (n=134,196; 99.5%), alcohol (n=129,766; 96.2%), and illicit drug (n=129,766; 92.6%) use. Of those assessed for E-cigarette use, 3.6% (n=1,669) reported current use. Of those with documented nicotine use (n=7,032), 17.2% (n=1,207) used mono E-cigarettes exclusively, 76.3% (n=5,364) used combustible tobacco exclusively, and 6.6% (n=461) reported dual use (both E-cigarette use and combustible tobacco use). Those who used combustible tobacco or illicit substances as well as younger patients were more likely to have been screened for E-cigarette use. CONCLUSIONS: Overall rates of E-cigarette screening were significantly lower than those of other substances. The use of combustible tobacco or illicit substances was associated with an increased likelihood of being screened. This finding may be because of the relatively recent proliferation of E-cigarettes, the recent addition of E-cigarette documentation to the electronic health record, or a lack of training on screening for E-cigarette use.


Subject(s)
Electronic Nicotine Delivery Systems , Illicit Drugs , Tobacco Products , Adult , Humans , Smoking/epidemiology , Primary Health Care
19.
Addiction ; 118(6): 1161-1166, 2023 06.
Article in English | MEDLINE | ID: mdl-36710461

ABSTRACT

BACKGROUND AND AIMS: Electronic nicotine delivery systems (ENDS) can help people to quit smoking combusted tobacco products (CTPs), but most current and former smokers who use ENDS also intend to quit ENDS. This analysis measured whether ENDS cessation among current and former CTP smokers is associated with changes in CTP smoking or abstinence. DESIGN: Regression analysis of a nationally representative cohort from waves 4 (W4) and 5 (W5) of the Population Assessment of Tobacco and Health Study (December 2016-November 2019). SETTING: United States. PARTICIPANTS: Adults (n = 1525) who reported W4 current or former use of ≥ 1 CTP and either currently using ENDS or quitting ENDS in the past year were included. MEASUREMENTS: Logistic regressions were performed separately among W4 current and former CTP smokers, controlling for demographic and tobacco use characteristics. First, we analyzed proximal outcomes by testing the association between ENDS quit status and CTP abstinence, both occurring during W5. Next, we analyzed long-term outcomes by testing W4 ENDS quit status as a predictor of CTP abstinence at W5, approximately 1 year later. FINDINGS: Among W4 current CTP smokers, there was no evidence that CTP smoking abstinence differed between those quitting or continuing using ENDS, both in our proximal [adjusted odds ratio (aOR) = 1.37, 95% confidence interval (CI) = 0.90, 2.10] and long-term (aOR = 0.90, 95% CI = 0.52, 1.53) analyses. Among former CTP smokers, quitting ENDS was associated with less CTP abstinence in our proximal analysis (aOR = 0.42, 95% CI = 0.20, 0.89), but there was no evidence that CTP smoking abstinence differed between those quitting or continuing using ENDS in our long-term analysis (aOR = 0.86, 95% CI = 0.44, 1.67). CONCLUSIONS: There is no evidence that ENDS cessation is associated with CTP abstinence among current smokers, although mixed findings among former smokers indicate a possible risk for relapse to smoking associated with quitting ENDS.


Subject(s)
Electronic Nicotine Delivery Systems , Smoking Cessation , Tobacco Products , Adult , Humans , United States/epidemiology , Smoking/epidemiology , Health Behavior , Tobacco Smoking
20.
Cancer Prev Res (Phila) ; 15(9): 569-580, 2022 09 01.
Article in English | MEDLINE | ID: mdl-35816038

ABSTRACT

E-cigarette use has been increasing globally over the past decade. Many use e-cigarettes as an alternative or method to quit cigarette smoking, whereas others use these products recreationally. As technology has advanced, many individuals have reported symptoms of dependence on these products and continue to use them beyond achieving abstinence from smoking. Despite individuals reporting interest in quitting, little is known about e-cigarette cessation. This systematic review sought to identify and evaluate all human subjects literature published on the outcome of e-cigarette cessation through September 2021. Of the 79 articles identified, 56 were cross-sectional, 6 were qualitative, 5 were cohort studies, 3 were experimental, 2 were mixed methods, and 7 reported intervention or case studies of e-cigarette cessation. Results showed youth generally had high intent to quit e-cigarettes, whereas results were mixed with adult samples. Youth were motivated to quit e-cigarettes by health concerns, whereas adults were motivated to quit e-cigarettes by cost, lack of satisfaction, and psychologic factors. Adults were more likely to report past e-cigarette quit attempts, most commonly "cold turkey." Few interventions tested strategies for e-cigarette cessation, with a majority targeted for youth. Given the lack of information on e-cigarette cessation, recommendations for future studies are outlined.


Subject(s)
Cigarette Smoking , Electronic Nicotine Delivery Systems , Smoking Cessation , Tobacco Products , Vaping , Adolescent , Adult , Cigarette Smoking/therapy , Humans , Smoking Cessation/methods , Vaping/adverse effects
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