Displaying publications 161 - 180 of 731 in total

Abstract:
Sort:
  1. Fulltext Transfer factor in smokers and non-smokers after smoking two cigarettes
    Rajikin MH, Etta KM
    Med J Malaysia, 1989 Mar;44(1):23-9.
    PMID: 2626109
    Impairments of lung functionality as long-term effects of cigarette smoking have been well established. To our knowledge, no study on acute recovery patterns in any important lung function index after smoking a very limited number of cigarettes has ever been reported. The present study reports recovery patterns of lung transfer factor (TF) and related parameters in smokers and non-smokers who smoked two Camel cigarettes. Lung transfer factor and other indices were determined by the single breath-holding technique. From our results, the TF and related indices of healthy Malaysians are similar to previously published normals of comparable age. On smoking two cigarettes, male smokers began to recover from the 30th minute; male non-smokers had not begun recovery even by the 50th minute. Extrapolation of the recovery curves suggests that a "safer" interval between cigarettes for male smokers is about 114 minutes.
    Matched MeSH terms: Smoking/physiopathology*
  2. Fulltext Computers in health education
    Krishnan R, Kueh ST, Lin YM, Samsuri MF, Seng OC, Mahadavan M, et al.
    World Health Forum, 1990;11(3):310-1.
    PMID: 2291796
    Matched MeSH terms: Smoking/prevention & control
  3. Smoking among urban Malaysian school children
    Thambypillai V
    Soc Sci Med, 1985;21(7):819-23.
    PMID: 4071118 DOI: 10.1016/0277-9536(85)90130-3
    A questionnaire on smoking habits was administered to 4106 Form IV school children in Kuala Lumpur. The period of survey was from 9 to 20 April 1984. 2099 boys and 2007 girls were studied and their mean age was 16.1 years. 32.8% of the students had been initiated to smoking and the mean age of initiation was 13.3 years. The prevalence of smoking was found to be 9.8% and the mean duration of smoking was 2.5 years. Most of the smokers and occasional smokers were boys. About 42% of the smokers wished to stop smoking and only 1% of the non-smokers intended to smoke in the future. The study recommended that health education programmes should be started earlier in school.
    Matched MeSH terms: Smoking*
  4. Fulltext Relationship between the levels of nicotine addiction with psychosocial factors among registered smokers at the Government Hospital Quit Smoking Clinic services around Klang Valley
    Mohd Haazik Mohamed, Kamathi Perialathan, Noh Amit
    Malaysian Journal of Medicine and Health Sciences, 2019;15(106):90-90.
    MyJurnal
    Introduction: Nicotine addiction is one of the major issue in public health especially in Malaysia. Nicotine addiction also make a quitting smoking process difficult for most smokers and could cause relapse and failure. This study inves-tigated relationship between nicotine addiction and psychosocial factors such as anxiety, depression and social sup-port among smokers registered in quit smoking clinic services in the hospital around Klang Valley, Malaysia. Meth-ods: A cross-sectional study has been conducted among 115 smokers. Results: Results showed that 23.5% smokers had high nicotine addiction, 24.3% had moderate nicotine addiction, and the rest had low nicotine addiction. There is a positive significant relationship between nicotine addiction with age and smoking duration (r=0.34, p< 0.01 and r=0.41, p< 0.01, respectively). There is also a positive significant relationship between nicotine addiction with anxi-ety and depression (r=0.33, p< 0.01 and r=0.38, p< 0.01, respectively). In addition, there is a negative significant re-lationship between nicotine addiction with social support overall and social support from significant others (r= -0.22, p< 0.05 and r= -0.19, p< 0.05, respectively). The study shows that psychosocial factors such as anxiety, depression, social support and socio-demographic factors such as age and smoking duration were potentially affecting smoker ́s nicotine addiction. Conclusions: Besides pharmacological treatment, this study proves the importance of psycho-social factors involvement in helping client with nicotine addiction issues. Therefore, psycho-education, behaviour modification and psychosocial support skills should be enhanced for the quit smoking clinic handler. Studies on the need for psychosocial factors in helping smokers reduce their psychological and behaviours dependence on nicotine addiction should also be explored in greater depth.
    Matched MeSH terms: Smoking; Smoking Cessation
  5. Fulltext Revised version of knowledge, attitude and practice of medical doctors on smoking cessation guidelines questionnaire
    Shaiful Ehsan Shalihin, Mohd Aznan MA, Mohamad Haniki NM
    Malaysian Journal of Applied Sciences, 2020;5(1):95-104.
    MyJurnal
    Number of active smokers in Malaysia is increasing despite availability of stop smoking clinics and smoking cessation medications. Thus, the practice of the healthcare professionals involved in providing smoking cessation intervention using evidence-based guidelines needs to be assessed using validated assessment tool. Newly invented reliable and valid questionnaire locally is needed. This study aimed to develop and validate a newly modified questionnaire to assess the knowledge, attitude and practice of medical doctors based on national smoking cessation guidelines and factors contributing to the score. The 22 items consists of true/false questions and Likert scaling response based on domain of 5A’s (ask, assess, advice, assist, arrange) and 5R’s (relevant, risks, rewards, roadblocks, repetitions) of the national stop-smoking guideline. Sample size is calculated based on five respondents to one item ratio. The questionnaires were distributed to 131 primary care doctors. Reliability was determined using Cronbach’s alpha for internal consistency while construct validity was assessed using factor analysis. A high degree of internal consistency was observed (Cronbach’s alpha = 0.87), with good knowledge subscale (0.72), attitude subscale (0.58) and practice subscale (0.92). Factor analysis showed three meaningful finalized components (knowledge, attitude and practice) which represent the smoking cessation framework. This study indicates that this revised questionnaire is more reliable and valid tool to assess the knowledge, attitude and practice on stop smoking guidelines compared to previous questionnaire.
    Matched MeSH terms: Smoking; Smoking Cessation
  6. Fulltext The association between smoking and periodontal health status among army personnel in North-East Malaysia
    Ruzawani Ruslan, Munirah Mohd Adnan, Normastura Abd Rahman
    Malaysian Journal of Medicine and Health Sciences, 2020;16(3):216-224.
    MyJurnal
    Introduction: Smoking is a common risk factor for periodontal disease and other chronic diseases. This study was conducted to determine the prevalence of smoking among army personnel and its association with periodontal health status. Methods: A cross-sectional study was carried out among randomly selected 233 army personnel in 8th Brigade Infantry, Kelantan. A face validated self-administered Bahasa Malaysia questionnaire was used for data col- lection. Periodontal examination was done using Community Periodontal Index (CPI) and coded as ‘0’ for healthy; ‘1’ for bleeding observation; ‘2’ for detection of calculus; ‘3’ for probing of 4-5mm pocketing and ‘4’ for probing of 6mm or more pocketing. Results: All respondents (n=233) were male, the majority (92.7%) Malays, not married (60.5%) with the mean (SD) age of 25.8 (5.06) years. The prevalence of smoking among army personnel was 76.0% (95% CI: 70.4, 81.5). Almost all (97.4%) have some degree of periodontal disease. The non-smoker, ex-smoker and smoker groups were highest for having calculus with a percentage of 40.5%, 57.1%, and 57.1%, respectively. No significant association was found between smoking status (ever-smoker and non-smoker) and periodontal pocketing (CPI 0-2 and CPI 3-4) (p=0.960). However, the ever-smokers (93.2%) significantly higher percentage for the need of invasive treatment (CPI >2) compared to the non-smokers (76.2%) (p=0.002). Conclusion: The prevalence of smok- ing among army personnel in North-East Malaysia was high, with most of them have some degree of periodontal disease. Smoking cessation intervention should be strategized in the military community to reduce the burden of care for chronic diseases.
    Matched MeSH terms: Smoking; Smoking Cessation
  7. Fulltext Smoking among medical workers in the institute of respiratory medicine (IPR) Hospital Kuala Lumpur (Shamsir study), 2002.
    Sallehudin, A.B. AB
    Malaysian Journal of Public Health Medicine, 2004;4(1):15-18.
    MyJurnal
    Cigarette smoking is so widespread that even medical workers are not exempted. A cross sectional survey was conducted among health care workers of the Institute of Respiratory Medicine, Hospital Kuala Lumpur to determine the prevalence of smoking and to assess readiness among the current smokers to quit. A total of 165 workers from all categories was surveyed using a pre-tested self-administered questionnaire, The survey began in Mac 2002 and ended in April 2002, The survey showed that 24.8% of the workers surveyed were current smokers. Only male workers were found to smoke and the prevalence among them was 60.3%. Majority were moderate smokers, smoking between 10 to 20 cigarettes a day and were mainly lower category of workers, Median age of starting to smoke was 17.6 years, There were 20 smokesr ( 52.6%) who were ready to quit. This study found the prevalence of smoking among male health care workers to be higher than males in the general population. The low level of education of these workers seemed to influence smoking status.
    Matched MeSH terms: Smoking; Smoking Cessation
  8. Fulltext The role of treating nicotine addiction prior to treatment of periodontal diseases
    Nurul Asyikin Yahya, Amer Siddiq Amer Nordin
    ASEAN Journal of Psychiatry, 2011;12(1):0-0.
    MyJurnal
    Introduction and Objective: Tobacco use is a significant risk factor for oral diseases. Periodontal disease has been known to be associated with tobacco use for over twenty years. Despite that, dentists and particularly periodontist does not include tobacco use cessation as part of their initial treatment in treating periodontal disease or placing implants in patients who use tobacco. The increase in prevalence and severity of periodontitis among smokers
    cannot be explained by differences in the amount of plaque between smokers and nonsmokers. A possible explanation is that smoking may alter the quality of the flora. Dental professionals also have a crucial role to play in tobacco cessation counseling, particularly for patients with chronic periodontitis. More patients will be affected by periodontitis than will ever be affected by oral cancer. Methods and Results: Reviews of literatures were
    done on a clearly formulated question on the need of smoking cessation intervention to increase positive outcome of treatment on periodontal disease. Conclusion: Various epidemiological studies strongly suggest that tobacco use cessation is beneficial to patients following periodontal treatments for a better outcome.
    Matched MeSH terms: Smoking; Smoking Cessation
  9. Fulltext Patterns and predictors of smoking cessation among smokers attending Smoking Cessation Clinics in Peninsular Malaysia
    Wan Puteh SE, Selahuddeen AA, Aljunid SM, Zarihah Z
    Malaysian Journal of Community Health, 2008;14(1):17-23.
    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
  10. Fulltext Smoking among form five students Kota Tinggi, Johor, Malaysia: knowledge, attitude and smoking status at one year follow up
    Lim, K.H., Amal, N.M., Sumarni, M.G., Wan Rozita, W.M., Hanjeet, K., Norhamimah, A.B.
    Malaysian Journal of Public Health Medicine, 2006;6(2):31-37.
    MyJurnal
    The high morbidity and mortality caused by smoking is a major public health problem today. Smoking prevention has been acknowledged and identified as a long-term measure to overcome this problem. This is a longitudinal knowledge; attitude and practice (KAP) study among form five students over l year. The response rate at follow‘up was 251/337 (74.5 %). The smoking prevalence changed after 1 year (from 29.7% to 26. 7%) after one year. The male to female smoking rates were 52.1% to 3.1% respectively. Students who smoke were found to have a positive attitude as well as poor knowledge of the risks of smoking. The initiation risk factors identified were being male and having a friend who smokes Positive peer influence also contributed to smoking cessation after a period of one year. Holistic measures that stress on micro macro and approaches such as health education programe to enhance knowledge of smoking hazards and community participation ( cooperation of school, family and community member) should be fomtulated in order to reduce initiation of smoking among the adolescents. Quit smoking programmes must also be readily available.
    Matched MeSH terms: Smoking; Smoking Cessation
  11. Ischaemic heart disease
    HARRIS CH
    Med J Malaya, 1962 Sep;17:55-61.
    PMID: 13952910
    Matched MeSH terms: Smoking*
  12. Fulltext Is there a need for a hospital based smoking cessation programme in Malaysia?
    NoorZurani MHR, Mohammad Hussain H
    Malaysian Journal of Psychiatry, 2008;17(2):1-4.
    MyJurnal
    Smoking cessation programmes have been available for almost 2 decades in Malaysia. However the programmes have mainly focussed on outpatient primary care settings. More attention is needed to address and treat smokers presenting to hospitals with acute and chronic medical illness as hospitals provide good settings to implement smoking cessation intervention. For instance, a tobacco related medical illness may boosts a smoker\'s motivation to stop, especially when the smoker perceives smoking as the cause of his illness and understands the gains achieved by smoking cessation. Besides bringing a smoker in contact with health personnel who may offer assistance to a smoker to help him stop smoking, a hospital stay also provide an opportunity for the health carer to initiate and practice the government policy of no smoking in the hospitals. This article addresses the importance of having a hospital-based smoking cessation programme for the Malaysian hospitals.
    Matched MeSH terms: Smoking; Smoking Cessation
  13. Fulltext Psychometric properties of the Malay version of alcohol, smoking and substance involvement screening test (ASSIST-M)
    Salina, M., Rusdi, A.R., Zahari, M.M., Sharmilla, K., Yee, A.
    Malaysian Journal of Psychiatry, 2016;25(2):0-0.
    MyJurnal
    Background: The Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST) developed by the World Health Organization is designed to identify individuals at risk for alcohol use problems and provide brief intervention.
    Objectives: To evaluate the validity and reliability of the ASSIST in Malaysia’s official language, the Bahasa Malay, among a group of alcohol users. The study also aimed to assess the impact of alcohol on the quality of life of patients.
    Methods: The final version of ASSIST-M was administered to 51 patients who were identified as alcohol users and attended the outpatient psychiatric clinic during a three-month period from September to November of 2012. Patients completed ASSIST, ASSIST-M, Mini-International Neuropsychiatric Interview (M.I.N.I.), Malay version of The Alcohol Use Disorders Identification Test (AUDIT-M), CAGE Assessment for Alcohol Abuse (CAGE), and the World Health Organization Quality of Life Scale-Brief-Malay version (WHOQoL-Brief-M). Statistical procedures were performed to assess the reliability and validity of the ASSIST-M.
    Results: Factor analysis of ASSIST-M yielded one factor similar to the factor structure of the English version. The Cronbach’s α coefficient of ASSIST-M was 0.80. The parallel reliability of the ASSIST-M was high with the intra-class correlation (ICC) of 0.96 (P< 0.01). The test–retest reliability of the ASSIST-M after the 1-week interval was high with the ICC of 0.94(P< 0.01). The ASSIST-M was positively correlated with the AUDIT-M (r =0.67, p <0 .01) and the CAGE (r=0. 57, p < 0.01). ASSIST-M score showed a negative and statistically significant relationships with the physical (r= -0 .28, p < 0.01) and social relationship (r= -0.37, p<0.01) subscales of the WHOQoL-Brief-M. The optimal cutoff point for ASSIST-M for alcohol use disorder was more than 14 with the with a sensitivity of 84.21 %, specificity of 84.38 %, positive predictive value (PPV) of 76.19% and negative predictive value (NPV) of 90%.
    Conclusions/Importance: The ASSIST-M displayed a fair psychometric performance in assessing alcohol use disorder in Malaysia.
    Keywords: Alcohol Dependence, ASSIST, ASSIST-M, M.I.N.I., CAGE, WHOQoL
    Study site: Psychiatric clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
    Matched MeSH terms: Smoking*
  14. Fulltext Is household smoking a risk factor for caries? A case-control study
    Zurina AM, Asma' M, Raja Latifah RJ, Noriah Y
    Sains Malaysiana, 2014;43(11):1729-1735.
    Recent studies suggested that exposure to household smoking (HHS) could be a modifiable risk factor for caries development among children. Majority of the studies were cross sectional in nature. Therefore, a case-control study was designed to test the hypothesis that HHS is a risk factor to caries experience in permanent teeth. Calculation of sample size was based on the ratio of 1 case to 4 controls. Case was defined as a child aged 13-14 years old with caries in at least one second permanent molar and control was defined as a child from the same age and school with no caries second permanent molars. Matching was done for gender and ethnicity. School dental records provided information on oral health status and oral hygiene status. Information on HHS, socio-economic status, child’s smoking status and child’s oral health practices were obtained from a self- administered questionnaire, completed by the children and their parents. The result showed that 55.9% of the case group was exposed to HHS, as compared to 44.1% among the control group. In the final multiple logistic regression model after controlling for important risk factors for caries, children with caries were almost twice as likely to have been exposed to HHS for more than 10 years as compared to children with no caries, (Adjusted OR=1.90 and 95% CI=1.35, 2.60). In addition, children who only received dental care from the school dental service had reduced risk of having dental caries by more than one third (36%) as compared with those who received dental care from school dental service (SDS) as well as had additional dental problem solving visit outside SDS (Adjusted OR=0.64 and 95% CI=0.50, 0.90). It is concluded that exposure to HHS for a long duration (> than 10 years) increase the risk to have caries experience in permanent teeth of children.
    Study site: 12 secondary schools, Kelang District, Selangor, Malaysia
    Matched MeSH terms: Smoking*
  15. A stepwise approach to the management of chronic obstructive pulmonary disease
    Liam CK
    Family Physician, 1993;5:46-53.
    Smoking cessation helps patients with COPD more than any specific medical treatment. By commencing treatment early, the main symptoms of COPD, i.e. cough, dyspnoea, and excessive mucus production, can be relieved and premature mortality from respiratory failure can, in many cases, be prevented. An anticholinergic aerosol offers the greatest bronchodilator benefit with the least side-effects to a patient with COPD. After maximising the dosage of an anticholinergic agent, either an inhaled beta2-agonist or oral theophylline may be added for additional bronchodilator effects. Corticosteroids may be beneficial in a subset of the patients. Selected patients with exercise limitation despite optimal medical therapy may gain from an increased sense of well-being enrolled in a supervised exercise rehabilitation progromrne. Long-term domiciliary oxygen therapy improves survival for patients who are chronically hypoxaemic. Antibiotics are reserved for acute exacerbations. The role of alpha-1-antitrypsin replacement and lung transplantation is still investigational.
    Matched MeSH terms: Smoking; Smoking Cessation
  16. Fulltext An online survey of Malaysian long-term e-cigarette user perceptions
    Abdulrahman SA, Ganasegeran K, Loon CW, Rashid A
    Tob Induc Dis, 2020;18:26.
    PMID: 32292316 DOI: 10.18332/tid/118720
    INTRODUCTION: The use of e-cigarettes (EC) has reached alarming proportions among Malaysians. On a national level, little is known about the profile and perceptions of Malaysian EC users. This study aimed to explore the prevalence of long-term EC usage and its associated factors among EC users in Malaysia.

    METHODS: This nationwide online questionnaire survey was administered among 694 EC users across 13 states and 1 Federal Territory in Malaysia, between January and April 2018. A survey link was e-mailed to EC users that were recruited from an official national vape entity through their Facebook association page. We obtained information on respondents' sociodemographic characteristics, smoking habits, long-term e-cigarette usage and perceptions of EC use. We estimated long-term EC user prevalence and fitted multivariate regression models to predict factors associated with long-term EC usage. Statistical significance was set at p<0.05.

    RESULTS: Respondents were predominantly Malays (87.6%), aged >30 years (68.1%) and tertiary educated (71%). The majority were employed (93.1%) with a monthly household income of MYR 4000 or less (56.6%). About 84% were former smokers, while 10% were current smokers. The prevalence of long-term EC usage in this study was 82.3%. Most users believed that EC had helped them to cut down tobacco smoking (94.8%), reduced the urge to smoke (88.3%) and ultimately helped them to quit smoking (87.2%). Respondents aged >30 years and those who perceived that EC has helped them stop smoking were significantly more likely to be long-term EC users.

    CONCLUSIONS: Most respondents engaged in EC use to quit smoking. They were more likely to be long-term EC users if they were older and perceived that EC has helped them to quit smoking. This information is valuable for targeted prevention, health promotion and policy regulations.
    Matched MeSH terms: Smoking; Smoking Cessation
  17. Challenges of pharmacist-managed smoking cessation services--a viewpoint
    Lee ML, Hassali MA, Shafie AA, Abd Aziz AM
    Nicotine Tob Res, 2011 Jun;13(6):504-5.
    PMID: 21447841 DOI: 10.1093/ntr/ntr052
    Matched MeSH terms: Smoking Cessation/methods*
  18. Fulltext Adult smokers' reactions to pictorial health warning labels on cigarette packs in Thailand and moderating effects of type of cigarette smoked: findings from the international tobacco control southeast Asia survey
    Yong HH, Fong GT, Driezen P, Borland R, Quah AC, Sirirassamee B, et al.
    Nicotine Tob Res, 2013 Aug;15(8):1339-47.
    PMID: 23291637 DOI: 10.1093/ntr/nts241
    In this study, we aimed to examine, in Thailand, the impact on smokers' reported awareness of and their cognitive and behavioral reactions following the change from text-only to pictorial warnings printed on cigarette packs. We also sought to explore differences by type of cigarette smoked (roll-your-own [RYO] vs. factory-made [FM] cigarettes).
    Matched MeSH terms: Smoking/psychology*
  19. Fulltext Empowering healthcare providers through smoking cessation training in Malaysia: a preintervention and postintervention evaluation on the improvement of knowledge, attitude and self-efficacy
    Hasan SI, Mohd Hairi F, Ahmad Tajuddin NA, Amer Nordin AS
    BMJ Open, 2019 Sep 27;9(9):e030670.
    PMID: 31562154 DOI: 10.1136/bmjopen-2019-030670
    OBJECTIVES: Healthcare providers are ideally positioned to advise their patients to quit smoking by providing effective smoking cessation intervention. Thus, we evaluate the effectiveness of a 1-day training programme in changing the knowledge, attitude and self-efficacy of healthcare providers in smoking cessation intervention.

    METHODS: A prepost study design was conducted in 2017. The 8-hour Smoking Cessation Organising, Planning and Execution (SCOPE) training comprised lectures, practical sessions and role-play sessions to 218 healthcare providers. A validated evaluation tool, Providers' Smoking Cessation Training Evaluation, was administered to assess the impact of training on knowledge, attitude and self-efficacy on smoking cessation intervention.

    RESULTS: After SCOPE training, the knowledge score increased significantly from 7.96±2.34 to 10.35±1.57 (p<0.001). Attitude and self-efficacy in smoking cessation intervention also increased significantly from 34.32±4.12 to 37.04±3.92 (p<0.001) and 40.31±8.61 to 54.67±7.45 (p<0.001) respectively. Pretraining and post-training scores improved significantly for all professions, and each measure, particularly self-efficacy.

    CONCLUSION: This study demonstrates that SCOPE training could improve healthcare providers' knowledge, attitude and self-efficacy on smoking cessation intervention. Future training is recommended to equip healthcare providers with current knowledge, positive attitude and high self-efficacy to integrate what they have learned into practice successfully.

    Matched MeSH terms: Smoking Cessation/methods*
  20. Fulltext Negative effects of Kudoa islandica n. sp. (Myxosporea: Kudoidae) on aquaculture and wild fisheries in Iceland
    Kristmundsson A, Freeman MA
    Int J Parasitol Parasites Wildl, 2014 Aug;3(2):135-46.
    PMID: 25161912 DOI: 10.1016/j.ijppaw.2014.06.001
    In the early 2000s, experimental rearing of spotted wolffish, Anarhichas minor, was started in Iceland. Health surveillance, carried out at regular intervals during the rearing period, revealed persistent and highly prevalent Kudoa infections of fish muscles which caused great financial losses due to post mortem myoliquefaction. In addition, during the traditional process of drying and smoking wild Atlantic lumpfish, Cyclopterus lumpus, the muscles from some fish almost completely disappear and the fish have to be discarded. To describe the etiological agent responsible for these conditions, spotted wolffish, Atlantic wolffish Anarhichas lupus, northern wolffish Anarhichas denticulatus and Atlantic lumpfish were caught off the Icelandic coast and examined for the presence of Kudoa. We describe a novel myxosporean, Kudoa islandica n. sp., using morphological and molecular data, and show with histopathology that it causes extensive myoliquefaction in three different wild fish hosts, which all are commercially valuable species in Iceland. Although some spore dimensions varied significantly between fish species, the molecular analyses showed that the same parasite was responsible for infection in all fish. The northern wolffish was not found to be infected. Although robustly placed in the Kudoa clade in phylogenetic analyses, K. islandica was phylogenetically distinct from other kudoids. A single myxosporean, K. islandica, is responsible for the infections in the somatic muscles of lumpfish and wolffish, causing extensive post mortem myoliquefaction. This myxosporean is likely to infect other fish species and it is important to study its life cycle in order to evaluate any threat to salmonid culture via the use of lumpfish as a biocontrol for sea lice.
    Matched MeSH terms: Smoking
Related Terms
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links