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  1. Win Win Than, Tin Sabai Aung
    MyJurnal
    Introduction: Cervical cancer remains the second commonest female malignancy worldwide and the seventh among Malaysians. Globally in 2012, an estimated 528 000 women developed cervical cancer and almost 266 000 died from this disease. Of all cervical cancers, 83% occur in the less developed world due to the absence of screening. To promote the community health awareness of cervical cancer which is preventable. Methods: By internet literature searching (Google Scholar) and textbooks. Results: The primary cause of cervical pre-cancer and cancer is persistent infection with one or more of the oncogenic types of HPV, the most common infection acquired during sexual inter-course, usually early in sexual life. Cervical cancer due to HPV can be prevented by HPV vaccination, participation in a screening program, avoidance of smoking, limitation of sex partners and use of a condom. Three HPV vaccines are available worldwide such as bivalent HPV 16/18 vaccine, quadrivalent HPV 16/18/6/11 L1 virus-like particles vaccine and 9-valent HPV 6/11/16/18/31/33/45/52/58 recombinant vaccine. The HPV test can be done on the same sample of cells collected from the Pap test and it can help to know HPV types. Conclusion: Cervical cancer due to HPV can be prevented by vaccination and the pre-cancerous phase of cervical cancer can be screened by the HPV testing with the Pap test. The community health awareness plays a major role in cervical cancer prevention.
    Matched MeSH terms: Smoking
  2. William Cairns Steward Smith
    Int J Public Health Res, 2014;4(1):425-430.
    MyJurnal
    Introduction Cardiovascular diseases are a major component of non-communicable
    diseases and include coronary heart disease, stroke and peripheral vascular
    disease. Public health strategies to address cardiovascular disease require
    three elements: surveillance, health promotion, and individual health care.

    Methods Surveillance includes monitoring of mortality and morbidity as well as
    surveys to monitor risk factors levels in the community. Data on mortality
    from cardiovascular diseases are readily available and analysed by age and
    sex specific rates looking are secular trends, geographical and ethnical group
    variations and international comparisons. However many deaths from
    cardiovascular disease occur suddenly and the cause of death may be
    registered without autopsy or any other validation. Cardiovascular morbidity
    information is more difficult to collate and interpret as it is closely related to
    availability and access to health care. Periodic surveys of cardiovascular risk
    factors are essential in monitoring the underlying trends in blood pressure,
    smoking, cholesterol, obesity, and diabetes as they predict future trends, and
    support planning for prevention and healthcare.

    Results Prevention and health promotion activities are informed by the levels and
    trends in cardiovascular disease and its risk factors. There has been debate
    about population health promotion and individual health care strategies, but
    both are necessary. Cigarette smoking, nutrition and physical exercise are the
    main behaviours to be addressed but these are complex and require
    multifaceted approaches. Education alone is insufficient to change health
    behaviours and health promotion needs to look to changing attitudes.
    Legislation, taxation and other fiscal interventions have been shown to be
    effective however these can be difficult for legislators as there are other
    competing interests, particularly in the area of nutrition and tobacco. Creating
    health promoting environments that make healthy behaviour choices easier
    can be beneficial.

    Conclusions Health care interventions are also effective in reducing the burden of
    cardiovascular disease. A balanced approach of health promotion and
    individual health care is recommended in the development of a strategy for
    cardiovascular disease.
    Matched MeSH terms: Smoking
  3. Wickramatilake CM, Mohideen MR, Pathirana C
    Ann Endocrinol (Paris), 2015 Jul;76(3):260-3.
    PMID: 26142486 DOI: 10.1016/j.ando.2015.04.008
    OBJECTIVE: There is limited data on the assessment of relationship between sex hormones, metabolic syndrome (MS) and inflammation. Therefore, our objective was to examine the relationship between metabolic syndrome, testosterone and inflammation.
    PATIENTS AND METHODS: It was a cross-sectional study which included 309 subjects in the age range of 30-70years. Blood was analyzed for plasma glucose, serum lipids, total testosterone (TT) and high-sensitivity C-reactive protein (hs-CRP).
    RESULTS: There were 153 patients with metabolic syndrome and 156 without MS according to modified NCEP guidelines. Age, BMI, obesity, dyslipidaemia, smoking (OR=2.35, CI=1.35-4.09), LDL-Ch, low TT (OR=0.76, CI=0.38-1.52) and elevated hs-CRP (OR=1.56, CI=0.87-2.80) were significant independent predictors of MS (all P<0.05).
    CONCLUSIONS: The low testosterone and high hs-CRP levels are independent predictors of metabolic syndrome.
    KEYWORDS: Hommes; Inflammation; Men; Metabolic syndrome; Syndrome métabolique; Testosterone; Testostérone
    Matched MeSH terms: Smoking/adverse effects
  4. Wee LH, Shahab L, Bulgiba A, West R
    Addict Behav, 2011 Apr;36(4):400-3.
    PMID: 21195553 DOI: 10.1016/j.addbeh.2010.11.011
    INTRODUCTION: As Stop Smoking Clinics (SSCs) become more common across the globe, it is important to know how far one can make broad generalisations concerning characteristics of smokers who attend these clinics and factors that predict their success. This involves accumulation of data from different countries.
    OBJECTIVE: The aim of this study was to identify characteristics of smokers and factors leading up to quitting with clinics in Malaysia.
    METHOD: Records from 629 smokers who had sought help from five selected SSCs in Malaysia from January 2006 to June 2007 were analysed.
    RESULTS: The characteristics of smokers attending Malaysian smoking clinics were broadly similar to those in Western countries. Consistent with the findings from other countries, older age and longest duration of previous quit attempts were associated with successful smoking cessation. Greater baseline carbon-monoxide readings (OR 0.96, 95% CI 0.93-0.99; p=0.013), but not Fagerstrom Test for Nicotine Dependence (FTND), predicted failure to quit at six-month in multivariate analysis. Success rates varied greatly between clinics even after adjusting for all other predictors.
    CONCLUSION: In these rare data from a non-Western culture some predictors of successful smoking cessation appeared to generalise from Western smokers but the universal validity of the FTND in particular needs to be examined further.
    Matched MeSH terms: Smoking/therapy*; Smoking Cessation/statistics & numerical data*
  5. Wee LH, West R, Mariapun J, Chan CM, Bulgiba A, Peramalah D, et al.
    Addict Behav, 2015 Aug;47:74-9.
    PMID: 25889913 DOI: 10.1016/j.addbeh.2015.03.021
    BACKGROUND: It has been proposed that the expired-air carbon monoxide (CO) threshold for confirming smoking abstinence in clinical practice be reduced below 10 ppm. Optimal thresholds may vary across regions. Data are needed to assess the impact of such a change on claimed success.
    METHODS: A total of 253 smokers who attended the Tanglin quit smoking clinic in Malaysia were followed-up 1, 3 and 6 months after the target quit date. All participants received a standard behavioural support programme and were prescribed either varenicline or nicotine replacement therapy. Expired-air CO was measured at every visit. Respondents' smoking status was assessed using a range of different CO thresholds (3, 5 and 10 ppm) and the impact on quit rates was calculated. Predictors of success as defined using the different thresholds were assessed.
    RESULTS: The 6-month abstinence rates were: 1 month - 54.9% at 10 ppm, 54.9% at 5 ppm and 48.6% at 3 ppm; 3 months - 36.0% at 10 ppm, 35.2% at 5 ppm and 30.4% at 3 ppm; 6 months - 24.1% at 10 ppm, 24.1% at 5 ppm and 20.6% at 3 ppm. Older smokers were more likely to be recorded as abstinent at 6 months regardless of the threshold used.
    CONCLUSIONS: Reducing the threshold for expired-air carbon monoxide concentrations to verify claimed smoking abstinence from 10 ppm to 5 ppm makes minimal difference to documented success rates in Malaysian smoker's clinic patients. Reducing to 3 ppm decreases success rates slightly. Predictors of success at stopping appear to be unaffected by the threshold used.
    KEYWORDS: Carbon monoxide; Predictors for abstinence; Smoking cessation; Success rates
    Matched MeSH terms: Smoking Cessation/statistics & numerical data*
  6. Wee LH, West R, Tee GH, Yeap L, Chan CMH, Ho BK, et al.
    Addiction, 2021 08;116(8):2150-2161.
    PMID: 33220115 DOI: 10.1111/add.15346
    AIMS: To assess the effectiveness of training stop smoking services providers in Malaysia to deliver support for smoking cessation based on the UK National Centre for Smoking Cessation and Training (NCSCT) standard treatment programme compared with usual care.

    DESIGN: Two-arm cluster-randomized controlled effectiveness trial across 19 sites with follow-up at 4-week, 3-month, and 6-month.

    SETTING: Stop smoking services operating in public hospitals in Malaysia.

    PARTICIPANTS: Five hundred and two smokers [mean ± standard deviation (SD), age 45.6 (13.4) years; 97.4% male] attending stop smoking services in hospital settings in Malaysia: 330 in 10 hospitals in the intervention condition and 172 in nine hospitals in the control condition.

    INTERVENTION AND COMPARATOR: The intervention consisted of training stop-smoking practitioners to deliver support and follow-up according to the NCSCT Standard Treatment Programme. The comparator was usual care (brief support and follow-up).

    MEASUREMENTS: The primary outcome was continuous tobacco smoking abstinence up to 6 months in smokers who received smoking cessation treatment, verified by expired-air carbon monoxide (CO) concentration. Secondary outcomes were continuous CO-verified tobacco smoking abstinence up to 4 weeks and 3 months.

    RESULTS: Follow-up rates at 4 weeks, 3 months and 6 months were 80.0, 70.6 and 53.3%, respectively, in the intervention group and 48.8, 30.8 and 23.3%, respectively, in the control group. At 6-month follow-up, 93 participants in the intervention group and 19 participants in the control group were abstinent from smoking, representing 28.2 versus 11.0% in an intention-to-treat (ITT) analysis assuming that participants with missing data had resumed smoking, and 52.8 versus 47.5% in a follow-up-only (FUO) analysis. Unadjusted odds ratios (accounting for clustering) were 5.04, (95% confidence interval (CI) = 1.22-20.77, P = 0.025) and 1.70, (95% CI = 0.25-11.53, P = 0.589) in the ITT and FUO analyses, respectively. Abstinence rates at 4 week and 3 month follow-ups were significantly higher in the intervention versus control group in the ITT but not the FUO analysis.

    CONCLUSIONS: On an intention-to-treat analysis with missing-equals-smoking imputation, training Malaysian stop smoking service providers in the UK National Centre for Smoking Cessation and Training standard treatment programme appeared to increase 6 month continuous abstinence rates in smokers seeking help with stopping compared with usual care. However, the effect may have been due to increasing follow-up rates.

    Matched MeSH terms: Smoking Cessation*
  7. Wee LH, Chan CM, Yogarabindranath SN
    Med J Malaysia, 2016 06;71(Suppl 1):29-41.
    PMID: 27801386 MyJurnal
    Two hundred and seventy one original published materials related to tobacco use were found in a search through a database dedicated to indexing all original data relevant to Medicine and Health in Malaysia from 1996 - 2015. A total of 147 papers were selected and reviewed on the basis of their relevance and implications for future research. Findings were summarised, categorised and presented according to epidemiology, behaviour, clinical features and management of smoking. Most studies are cross-sectional with small sample sizes. Studies on smoking initiation and prevalence showed mixed findings with many small scale studies within the sub-groups. The majority of the studies were related to factors that contribute to initiation in adolescents. Nonetheless, there are limited studies on intervention strategies to curb smoking among this group. There is a lack of clinical studies to analyse tobacco use and major health problems in Malaysia. In addition, studies on the best treatment modalities on the use of pharmacotherapy and behavioural counselling have also remained unexplored. Reasons why smokers do not seek clinic help to quit smoking need further exploration. A finding on the extent of effort carried out by healthcare providers in assisting smokers to make quit attempts is not known. Studies on economic and government initiatives on policies and tobacco use focus mainly on the effects of cigarette bans, increased cigarettes taxes and the influence of the tobacco industry. Recommendations are given for the government to increase efforts in implementing smoke-free legislation, early and tailored interventions. Clinical studies in this area are lacking, as are opportunities to research on ways to reduce smoking initiation age and the most effective quit smoking strategies.
    Matched MeSH terms: Smoking/epidemiology*; Smoking Cessation*
  8. Wee LH, Binti Ithnin AA, West R, Mohammad N, Chan CM, Hasan Nudin SS
    J Subst Use, 2017 Jan 02;22(1):47-52.
    PMID: 28217031 DOI: 10.3109/14659891.2016.1143045
    Introduction: Little is known about how smokers respond cognitively and emotionally to the experience of "late" relapse after the acute withdrawal phase. This study assessed the kinds of thoughts and feelings that emerge in order to provide a basis for quantitative research assessing prevalence of different types of response and implications for future quit attempts. Methods: Face-to-face in-depth interviews were conducted among 14 people attending a quit smoking clinic in Malaysia who had relapsed after at least 6 weeks of abstinence. Transcripts were analyzed using thematic analysis to enable emergence of important aspects of the experience. Results: Following relapse, smokers often engaged in rationalizations and activities to minimize worry about the harmful effects of smoking by switching to a lower-tar cigarette, reducing the number of cigarette smoked, attempting to reduce cigarette smoke inhalation, comparing themselves with other smokers, and minimizing the health risks associated with smoking. In some cases, smokers retained a "non-smoker" identity despite having relapsed. Conclusion: Smoking relapsers rationalize their failure to quit and minimize their health risk in order to protect their image as non-smokers while it remains a source of identity conflict.
    Study site: Quit Smoking Clinic, Hospital Tengku Ampuan Rahimah, Selangor, Malaysia
    Matched MeSH terms: Smoking Cessation*
  9. Wee LH, West R, Bulgiba A, Shahab L
    Nicotine Tob Res, 2011 Feb;13(2):151-6.
    PMID: 21186253 DOI: 10.1093/ntr/ntq221
    INTRODUCTION: Much is known about the predictors of success in quitting smoking. In particular, nicotine dependence, but not strength of motivation to stop, appears to predict abstinence. However, to date, studies have come almost exclusively from Western countries. More data are needed on the cross-cultural generalizability of these findings.
    METHODS: One hundred and ninety-eight smokers attending 5 stop-smoking clinics in Malaysia completed a questionnaire prior to their target quit date and were followed up 3 months after this date. Predictors included sociodemographic variables, smoking patterns, past history of quitting, characteristics of current quit attempt, and smoking motives as well as nicotine dependence (Fagerström Test for Nicotine Dependence [FTND]) and self-rated strength of motivation of stop.
    RESULTS: At 3-month follow-up, 35.4% (95% CI: 28.7-42.0) of participants reported being abstinent. A backward elimination multiple logistic regression identified a number of significant predictors of success, including strength of motivation to stop (adjusted odds ratio [OR]: 3.05, 95% CI: 1.28-7.25). FTND did not predict success.
    CONCLUSIONS: Motivation and nicotine dependence may play different roles in explaining variation in ability to stop smoking in different cultures.
    Study site: Quit smoking clinics, Federal Territories and Putrajaya Hospital, Malaysia
    Matched MeSH terms: Smoking/epidemiology; Smoking/psychology*; Smoking Cessation/psychology; Smoking Cessation/statistics & numerical data*
  10. Wee B, Ebihara M
    Sains Malaysiana, 2017;46:605-613.
    We report herewith the study of fingernail clippings obtained from the residents of Tokyo, Japan. A total of 18 participants with no health problems and occupational exposure to metals were recruited to provide fingernails samples for this study. Through the use of instrumental neutron activation analysis (INAA), 18 elements (Ag, Al, As, Ca, Cl, Co, Cu, Fe, Hg, K, Mg, Mn, Na, S, Sb, Se, V, and Zn) were determined. The results showed that the toxic elements in the fingernails are in the lower range when compared to literature values. There were no chronic exposures to toxic elements such as As and Hg found. The level of Hg found is lower than that reported 20 years ago, possibly due to the strict regulation control in Japan on the release of Hg to the environment. The elements Se and Zn are found to be rather uniformly distributed among participants and are in agreement with results from other countries. There were no significant differences in elemental concentrations due to genders and smoking habits. The overall data from this study showed similar concentrations to those of healthy participants from other countries. Thus, the current data could represent the background level of elemental concentrations in fingernails of residents in Tokyo, which could serve as reference values for future study.
    Matched MeSH terms: Smoking
  11. Wbin-Wan-Ibrahim WA, Mirza EH, Akbar Ali SF
    Pak J Pharm Sci, 2013 Jul;26(4):823-6.
    PMID: 23811465
    Heavy metals in cigarette tobacco such as iron may cause a serious damage on human health. Surveys showed that the accumulation of certain toxic heavy metals like cadmium, mercury, iron is very often due to the effect of smoking. This work involved 15 volunteers in two randomly divided groups having the habit of cigarette smoking over 15 cigarettes / day. Concentration level of iron in blood and urine before and after treatment using the herbal medicine, widely used in Europe, is analyzed. Determination of Iron concentration in blood and urine was calculated by Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) according to the procedure DIN EN ISO 11885 ("E22" from April 1998). The analysis shows that the concentration of iron in blood and urine samples in both groups increased in some volunteers instead of decrease. The independent T-test shows that the mean of iron concentration in the group A and group B had no significant difference (p>0.05). The results suggested that the herbal medicine under test does not have significant influence on reduction of iron concentration levels.
    Matched MeSH terms: Smoking/metabolism*
  12. Wang X, Dalmeijer GW, den Ruijter HM, Anderson TJ, Britton AR, Dekker J, et al.
    PLoS One, 2017;12(3):e0173393.
    PMID: 28323823 DOI: 10.1371/journal.pone.0173393
    BACKGROUND: The relation of a single risk factor with atherosclerosis is established. Clinically we know of risk factor clustering within individuals. Yet, studies into the magnitude of the relation of risk factor clusters with atherosclerosis are limited. Here, we assessed that relation.

    METHODS: Individual participant data from 14 cohorts, involving 59,025 individuals were used in this cross-sectional analysis. We made 15 clusters of four risk factors (current smoking, overweight, elevated blood pressure, elevated total cholesterol). Multilevel age and sex adjusted linear regression models were applied to estimate mean differences in common carotid intima-media thickness (CIMT) between clusters using those without any of the four risk factors as reference group.

    RESULTS: Compared to the reference, those with 1, 2, 3 or 4 risk factors had a significantly higher common CIMT: mean difference of 0.026 mm, 0.052 mm, 0.074 mm and 0.114 mm, respectively. These findings were the same in men and in women, and across ethnic groups. Within each risk factor cluster (1, 2, 3 risk factors), groups with elevated blood pressure had the largest CIMT and those with elevated cholesterol the lowest CIMT, a pattern similar for men and women.

    CONCLUSION: Clusters of risk factors relate to increased common CIMT in a graded manner, similar in men, women and across race-ethnic groups. Some clusters seemed more atherogenic than others. Our findings support the notion that cardiovascular prevention should focus on sets of risk factors rather than individual levels alone, but may prioritize within clusters.

    Matched MeSH terms: Smoking/epidemiology
  13. Wan Puteh SE, Manap RA, Hassan TM, Ahmad IS, Idris IB, Sham FM, et al.
    Tob Induc Dis, 2018;16:57.
    PMID: 31516454 DOI: 10.18332/tid/99539
    INTRODUCTION: E-cigarette use is an emerging phenomenon with increasing recognition and acceptance globally. This study aims to create a profile of e-cigarette users among university students in Malaysia.

    METHODS: The study was conducted using a cross-sectional research involving six universities in Malaysia. A semi-structured questionnaire was distributed to 1302 randomly selected students, who either smoked cigarettes and/or e-cigarettes. The 2011 version of Global Adult Tobacco Surveys (GATS) tool was used to record the respondents' sociodemographic data.

    RESULTS: The study revealed that 74.9% of the respondents smoked e-cigarettes; 40.3% used both cigarettes and e-cigarettes (dual users), and 34.5% were exclusive e-cigarette users. The exclusive use of e-cigarettes was related to gender (OR=0.18, 95% CI: 0.09-0.39). Also, male respondents were the majority users (95%). Of the respondents, 75.2 % were Malays, 98.0% single and most believed they have no health problems (92.1%). Further findings revealed the occurrence of adverse effects, dizziness 14.4%, cough 14.1%, and headaches 12.4%. Overall, 57.8% of the respondents used e-cigarettes as a smoking cessation tool, while others consider e-cigarettes a self-image enhancing tool or as part of social activities.

    CONCLUSIONS: Further research on the use of e-cigarettes should be conducted on a large number of respondents in other settings to augment the findings of this study, and also guide policy making on and prevention practice of e-cigarette use, among the general student population in Malaysia.
    Matched MeSH terms: Smoking Cessation
  14. Wan Puteh SE, Selahuddeen AA, Aljunid SM, Zarihah Z
    MyJurnal
    Introduction: This study seeks to identify the socio-demographic and behavioral characteristics of smokers (aged 18 and above), thus develop a predicting model for tobacco abstinence receiving cessation services for tobacco dependence at the Smoking Cessation Clinics (SCC) in government Primary Health Centers in Malaysia. These predictors would improve the effectiveness and efficiency of these clinics.
    Methods : Smokers who sought smoking cessation therapy at the SCCs from 1st January 2004 to 31st
    December 2004 were chosen randomly from clinic’s registries, and 254 smokers were recruited from 8 clinics chosen through stratified random sampling. Data analyses were performed with SPSS 12.0. 17.3% of smokers attending SCCs were able to quit smoking for at least six months.
    Results : Factors significantly contributing to quitting success were elderly smokers (above 40 years old), smoked for more than 15 years, smoked less than ten sticks per day, had a previous history of quitting attempt, self referral to the clinic, high confidence level, attended SCC at least four times, each counseling session lasted for at least 30 minutes and were satisfied with the clinic service. In logistic regression model, smokers aged 40 years and above were 6.7 times more successful to quit, high level of confidence were nine times more successful, smoked more than ten sticks per day were ten times less successful, self referred smokers were ten times more successful and attending for at least 30 minutes counseling session were 12 times more successful.
    Conclusion : This study concludes that more concerted effort is needed to approach various groups of target population and SCCs clinic services need to be improved.
    Matched MeSH terms: Smoking; Smoking Cessation
  15. Wan Ghazali WS, Wan Zainudin WMKB, Yahya NK, Mohamed Ismail A, Wong KK
    PeerJ, 2021;9:e11468.
    PMID: 34055491 DOI: 10.7717/peerj.11468
    Background: Gouty arthritis is a disease of global burden in which defective metabolism of uric acid causes arthritis. Gouty arthritis or medications used for its treatment may lead to uric acid-associated complications such as upper gastrointestinal bleeding (UGIB) and renal impairment.

    Methods: In this cross-sectional study with retrospective record review, 403 established gouty arthritis patients were recruited to determine the incidence of UGIB and associated factors among gout patients who were on regular nonsteroidal anti-inflammatory drugs (NSAIDs).

    Results: The mean age of the 403 gouty arthritis patients was 55.7 years old and the majority (n = 359/403; 89.1%) were male. The incidence of UGIB among gouty arthritis patients who were on NSAIDs was 7.2% (n = 29/403). Older age (p < 0.001), diclofenac medication (p = 0.003), pantoprazole medication (p = 0.003), end-stage renal failure (ESRF) (p = 0.007), smoking (p = 0.035), hypertension (p = 0.042) and creatinine (p = 0.045) were significant risk factors for UGIB among the gouty arthritis patients in univariable analysis. Older age (p = 0.001) and diclofenac medication (p < 0.001) remained significant risk factors for UGIB among the gouty arthritis patients in multivariable analysis.

    Conclusions: Age and diclofenac were significantly associated with UGIB among patients with gouty arthritis on regular NSAIDs, indicating that these factors increased the risks of developing UGIB in gout patients. Hence, these high-risk groups of gouty arthritis patients should be routinely monitored to avoid the potential onset of UGIB. Our data also suggest that diclofenac should be prescribed for the shortest duration possible to minimize the risk of developing UGIB in gout patients.

    Matched MeSH terms: Smoking
  16. Walker JD, Spiro G, Loewen K, Jacklin K
    J Alzheimers Dis, 2020;78(4):1439-1451.
    PMID: 33185601 DOI: 10.3233/JAD-200704
    BACKGROUND: There remains a lack of information and understanding of the prevalence and incidence of Alzheimer's disease and related dementia in Indigenous populations. Little evidence available suggests that Indigenous peoples may have disproportionately high rates of Alzheimer's disease and related dementia (ADRD).

    OBJECTIVE: Given this information, this study systematically explores what risk factors may be associated with ADRD in Indigenous populations.

    METHODS: A search of all published literature was conducted in October 2016, March 2018, and July 2019 using Medline, Embase, and PsychINFO. Subject headings explored were inclusive of all terms related to Indigenous persons, dementia, and risk. All relevant words, phrases, and combinations were used. To be included in this systematic review, articles had to display an association of a risk factor and ADRD. Only studies that reported a quantifiable measure of risk, involved human subjects, and were published in English were included.

    RESULTS: Of 237 articles originally identified through database searches, 45 were duplicates and 179 did not meet a priori inclusion criteria, resulting in 13 studies eligible for inclusion in this systematic review.

    CONCLUSION: The large number of potentially modifiable risk factors reported relative to non-modifiable risk factors illustrates the importance of socioeconomic context in the pathogenesis of ADRD in Indigenous populations. The tendency to prioritize genetic over social explanations when encountering disproportionately high disease rates in Indigenous populations can distract from modifiable proximal, intermediate, and distal determinants of health.

    Matched MeSH terms: Smoking/epidemiology
  17. Wadhwa R, Paudel KR, Mehta M, Shukla SD, Sunkara K, Prasher P, et al.
    CNS Neurol Disord Drug Targets, 2020;19(9):698-708.
    PMID: 33109069 DOI: 10.2174/1871527319999200817112427
    Tobacco smoke is not only a leading cause for chronic obstructive pulmonary disease, cardiovascular disorders, and lung and oral cancers, but also causes neurological disorders such as Alzheimer 's disease. Tobacco smoke consists of more than 4500 toxic chemicals, which form free radicals and can cross blood-brain barrier resulting in oxidative stress, an extracellular amyloid plaque from the aggregation of amyloid β (Aβ) peptide deposition in the brain. Further, respiratory infections such as Chlamydia pneumoniae, respiratory syncytial virus have also been involved in the induction and development of the disease. The necessary information collated on this review has been gathered from various literature published from 1995 to 2019. The review article sheds light on the role of smoking and respiratory infections in causing oxidative stress and neuroinflammation, resulting in Alzheimer's disease (AD). This review will be of interest to scientists and researchers from biological and medical science disciplines, including microbiology, pharmaceutical sciences and the translational researchers, etc. The increasing understanding of the relationship between chronic lung disease and neurological disease is two-fold. First, this would help to identify the risk factors and possible therapeutic interventions to reduce the development and progression of both diseases. Second, this would help to reduce the probable risk of development of AD in the population prone to chronic lung diseases.
    Matched MeSH terms: Smoking/epidemiology*
  18. Vrieling A, Bueno-De-Mesquita HB, Ros MM, Kampman E, Aben KK, Büchner FL, et al.
    Int J Cancer, 2019 Nov 01;145(9):2349-2359.
    PMID: 30694528 DOI: 10.1002/ijc.32165
    Published associations between dietary folate and bladder cancer risk are inconsistent. Biomarkers may provide more accurate measures of nutrient status. This nested case-control analysis within the European Prospective Investigation into Cancer and Nutrition (EPIC) investigated associations between pre-diagnostic serum folate, homocysteine, vitamins B6 and B12 and the risk of urothelial cell carcinomas of the bladder (UCC). A total of 824 patients with newly diagnosed UCC were matched with 824 cohort members. Serum folate, homocysteine, and vitamins B6 and B12 were measured. Odds ratios (OR) and 95% confidence intervals (CI) for total, aggressive, and non-aggressive UCC were estimated using conditional logistic regression with adjustment for smoking status, smoking duration and intensity, and other potential confounders. Additionally, statistical interaction with smoking status was assessed. A halving in serum folate concentrations was moderately associated with risk of UCC (OR: 1.18; 95% CI: 0.98-1.43), in particular aggressive UCC (OR: 1.34; 95% CI: 1.02-1.75; p-heterogeneity = 0.19). Compared to never smokers in the highest quartile of folate concentrations, this association seemed only apparent among current smokers in the lowest quartile of folate concentrations (OR: 6.26; 95% CI: 3.62-10.81, p-interaction = 0.07). Dietary folate was not associated with aggressive UCC (OR: 1.26; 95% CI: 0.81-1.95; p-heterogeneity = 0.14). No association was observed between serum homocysteine, vitamins B6 and B12 and risk of UCC. This study suggests that lower serum folate concentrations are associated with increased UCC risk, in particular aggressive UCC. Residual confounding by smoking cannot be ruled out and these findings require confirmation in future studies with multiple measurements.
    Matched MeSH terms: Smoking/blood; Smoking/epidemiology
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