Displaying publications 661 - 680 of 3225 in total

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  1. Fulltext Cholesterol reduction therapy: a double-edged knife
    Ong HT
    Med J Malaysia, 1993 Jun;48(2):107-12.
    PMID: 8350783
    Cholesterol reduction reduces ischaemic cardiovascular morbidity and mortality in the asymptomatic healthy population as well as in those with known coronary artery disease. Angiographic studies have also demonstrated regression of atherosclerotic plaques as well as retardation of new atheroma formation with such therapy. Yet, there is a consistent inability to reduce overall mortality in cholesterol-lowering drug trials. An excess of suicide, homicide and violence has been attributed to cholesterol reduction interfering with membrane lipids and receptors, leading to aggressive behaviour. The risk and benefits of cholesterol reduction must thus be weighed in the individual patient; it is more useful in those with known coronary artery disease who are at high risk of subsequent ischaemic cardiovascular events.
    Matched MeSH terms: Arteriosclerosis/prevention & control; Coronary Disease/prevention & control
  2. Fulltext The noise exposed factory workers: the prevalence of sensori-neural hearing loss and their use of personal hearing protection devices
    Maisarah SZ, Said H
    Med J Malaysia, 1993 Sep;48(3):280-5.
    PMID: 8183139
    A total of 524 industrial workers were studied. They consisted of 442 noise exposed and 82 non-noise exposed workers. The purpose was to compare the prevalence of sensori-neural hearing loss among the noise exposed and the non-noise exposed workers, to study their knowledge on the hazard of noise to hearing and the workers' attitude towards the hearing protection devices. The prevalence of sensori-neural hearing loss was significantly higher among the noise exposed workers, i.e., 83% versus 31.7% (p < 0.01). However, the prevalence of hearing impairment was much lower for both groups, being 30.1% for the noise exposed and 3.7% for the non-noise exposed group. Although hearing protection devices were provided to 80.5% of the workers, only 5.1% were wearing them regularly. The possibility of developing hearing loss due to exposure to excessive noise was only known by 35.5% of the noise exposed workers. This awareness was found to have a positive correlation with the workers' compliance to the hearing protection devices. Our findings highlight the need for workers to be educated on the hazards of excessive noise exposure to hearing.
    Matched MeSH terms: Hearing Loss, Sensorineural/prevention & control; Occupational Diseases/prevention & control
  3. Control of parasites in cultured marine finfishes in Southeast Asia--an overview
    Seng LT
    Int J Parasitol, 1997 Oct;27(10):1177-84.
    PMID: 9394188
    Mariculture in Southeast Asia began in the 1970s and expanded rapidly during the 1980s, with the commercial hatchery production of the seabass Lates calcarifer. Other important cultured species were Epinephelus coioides, Epinephelus malabaricus, Lutjanus johni, and Lutjanus argentimaculatus. Intensification in the polyculture of these species and the large-scale international movement of fingerlings or juveniles, as well as the rapid expansion and concentration of fish farms, have caused severe problems resulting from parasitic infections. Infections in maricultured fish are predominantly caused by monoxenous parasites, in particular the capsalid and diplectanid monogeneans. Heteroxenous blood parasites also successfully maintained transmission in the culture system despite their requirement for an intermediate host. Prophylactic chemical treatments helped to reduce parasitic infection but did not eliminate them and once introduced into the floating netcage culture system, these parasites managed to maintain their transmission successfully. Despite the current lack of information regarding the biology of many parasites affecting cultured marine fishes, it nevertheless is possible to develop methodologies to produce an integrated health management system specifically designed to the needs of the mariculture practiced in the Southeast Asian region. This system is important and should include a sequence of prophylaxes, adequate nutrition, sanitation, immunization and an effective system of marketing for farmed fishes.
    Matched MeSH terms: Fish Diseases/prevention & control*; Parasitic Diseases, Animal/prevention & control*
  4. Efficacy of intranasal administration of formalin-killed Pasteurella haemolytica A2 against intratracheal challenge in goats
    Effendy AW, Zamri-Saad M, Puspa R, Rosiah S
    Vet Rec, 1998 Apr 18;142(16):428-31.
    PMID: 9595632
    A trial was conducted to compare the efficacy of intranasal vaccination in protecting goats against pneumonic pasteurellosis with intramuscular vaccination using an oil adjuvant vaccine, and a combination of the two methods. Forty goats were divided into four equal groups. Group 1 was vaccinated twice intranasally with formalin-killed Pasteurella haemolytica A2, group 2 was vaccinated twice intramuscularly with an oil adjuvant vaccine containing P haemolytica A7, and group 3 was initially vaccinated intranasally with the formalin-killed P haemolytica A2 followed by intramuscular vaccination with the oil adjuvant vaccine. In each group the two vaccinations were carried out four weeks apart. Group 4 was the unvaccinated control group. All goats were challenged intratracheally with 4 ml of an inoculum containing live P haemolytica A2 at a concentration of 1.3 x 10(7) colony forming units/ml two weeks after the last vaccination and were killed 14 days after the challenge. Although group 2 showed the highest clinical score following the challenge, deaths were observed only in group 3. Three goats in group 1 had pneumonic lung lesions, compared with six goats in group 2 and all the goats in groups 3 and 4. The lung lesions in group 1 were significantly (P < 0.05) less severe than in groups 3 and 4. Similarly, the lesions in group 2 were markedly less severe than in groups 3 and 4, although the differences were not significant. The difference between the extent of the lung lesions in the goats in groups 1 and 2 was not significant. Antibody against P haemolytica A2 in group 1 reached peak levels and was significantly (P < 0.01) higher than in the control group one week after the second vaccination, before declining.
    Matched MeSH terms: Pasteurella Infections/prevention & control*; Goat Diseases/prevention & control*
  5. Fulltext Dengue vaccine design: issues and challenges
    Cardosa MJ
    Br Med Bull, 1998;54(2):395-405.
    PMID: 9830205 DOI: 10.1093/oxfordjournals.bmb.a011696
    Dengue virus infection is now a global problem affecting tens of millions of people. The spread of the four dengue virus serotypes had led to increased incidence of dengue haemorrhagic fever (DHF) reported and with 2.5 billion people at risk, efforts towards the development of safe and effective vaccines against dengue must be accelerated. This chapter reviews some of the important lessons of pathogenesis which may be learnt from classical studies in the field and place these in the context of current knowledge about the molecular biology of the virus. The issues which have to be addressed in designing a safe vaccine against dengue are raised and the problems of designing subunit as well as whole virus vaccines are pointed out, particularly with regard to the phenomenon of antibody dependent enhancement and, more generally, the problem of immune potentiation of disease. More efforts must be made to understand the basis of pathogenesis in DHF and in finding out what nature has to teach about protection against and recovery from dengue virus infection.
    Matched MeSH terms: Dengue/prevention & control*; Severe Dengue/prevention & control
  6. Harm reduction in Asia: a successful response to hidden epidemics. The Asian Harm Reduction Network
    Crofts N, Costigan G, Narayanan P, Gray J, Dorabjee J, Langkham B, et al.
    AIDS, 1998;12 Suppl B:S109-15.
    PMID: 9679636
    Matched MeSH terms: HIV Infections/prevention & control*; Substance Abuse, Intravenous/prevention & control*
  7. The HIV/AIDS epidemic country paper: Malaysia
    Huang M, Hussein H
    AIDS Educ Prev, 2004 Jun;16(3 Suppl A):100-9.
    PMID: 15262569
    Since the first case of HIV/AIDS was identified in 1986 in Malaysia, the number of infected individuals has increased steadily each year, so that by the end of 2002 the cumulative number of people living with HIV/AIDS was 57,835 (51,256 with HIV and 6,579 with AIDS), with 5,676 AIDS deaths. The epidemic in Malaysia, currently in a concentrated epidemic stage, is primarily fueled by drug use, but there is ample evidence that heterosexual transmission has increased over the last few years. A strategic plan that includes prevention, care, support, and treatment run by both the government and nongovernmental organizations has been in place since the beginning of the epidemic. However, Malaysia will need to take a more pragmatic approach to reduce new infections (which numbered 19 each day in 2002) among the youth on whom the country relies for development. Leaders need to recognize that HIV/AIDS is not just a health issue, but also a socioeconomic concern that can eliminate all the developmental gains achieved over the years. Working together, Malaysians can overcome the epidemic, but there is a need to act quickly and to act in effective ways so that the devastating effects (already evident in the number of AIDS orphans and widows) can be reduced.
    Matched MeSH terms: Acquired Immunodeficiency Syndrome/prevention & control; HIV Infections/prevention & control
  8. Hepatitis disease management programs in Malaysia
    Khairullah NS, Merican DI
    J Gastroenterol Hepatol, 2004 Mar;19 Suppl:S13-6.
    PMID: 15156929
    The MLF since its inception in 1996 has endeavored to develop a coordinated approach towards the improved care and treatment of liver diseases in Malaysia. Its close liaison with the Malaysian MOH, local medical associations, and corporate bodies has contributed to the success of its many programs. Educating the public, research, and training have been important elements of successful hepatitis disease control programs. Hepatitis Days have been proven to be very successful in raising the awareness of the general public to hepatitis disease. Rapid screening and vaccination has also helped to remove the social stigma associated with the disease, eliminated the need for numerous clinic appointments, and rendered vaccination more accessible to the public. The MLF perspective emphasizes the need for collaborative effort between Government bodies and other agencies, such as non-governmental organizations, laboratories, and the medical fraternity, to ensure the overall success of hepatitis disease management programs.
    Matched MeSH terms: Hepatitis A/prevention & control*; Hepatitis B/prevention & control*
  9. Protection of Military Personnel Against Vector-Borne Diseases: A Review of Collaborative Work of the Australian and US Military Over the Last 30 Years
    Frances SP, Edstein MD, Debboun M, Shanks GD
    US Army Med Dep J, 2016 Oct-Dec.
    PMID: 27613205
    Australian and US military medical services have collaborated since World War II to minimize vector-borne diseases such as malaria, dengue, and scrub typhus. In this review, collaboration over the last 30 years is discussed. The collaborative projects and exchange scientist programs have resulted in mutually beneficial outcomes in the fields of drug development and personal protection measures against vector-borne diseases.
    Matched MeSH terms: Dengue/prevention & control; Malaria/prevention & control
  10. Fulltext A tale of two communities: intestinal polyparasitism among Orang Asli and Malay communities in rural Terengganu, Malaysia
    Elyana FN, Al-Mekhlafi HM, Ithoi I, Abdulsalam AM, Dawaki S, Nasr NA, et al.
    Parasit Vectors, 2016 07 16;9(1):398.
    PMID: 27422533 DOI: 10.1186/s13071-016-1678-z
    BACKGROUND: Intestinal parasitic infections (IPIs) are still major health problems in many developing countries including Malaysia, particularly in the poor and socioeconomically deprived rural and remote communities in Peninsular Malaysia. This study was conducted to determine the prevalence of IPIs and to identify the key factors associated with intestinal polyparasitism as well as to evaluate the knowledge, attitude and practices (KAP) on IPIs among rural Orang Asli and Malay communities in Terengganu, Malaysia.

    METHODS: A cross-sectional study was conducted among 340 participants (165 Orang Asli and 175 Malay) aged ≤ 15 years from the Hulu Terengganu and Kemaman districts of Terengganu. Faecal samples were examined for the presence of intestinal parasites by using direct smear, formalin-ether sedimentation, trichrome stain, modified Ziehl Neelsen stain, in vitro cultivation in Jones' medium, Kato Katz and Harada Mori techniques. Demographic, socioeconomic, environmental and behavioural information of the participants and their KAP for IPIs were collected by using a pre-tested questionnaire.

    RESULTS: Overall, 149 (90.3 %) Orang Asli and 43 (24.6 %) Malay children were infected by at least one parasite species. The overall prevalences of intestinal polyparasitism among the Orang Asli and Malay were 68.5 % (113/165) and 14.3 % (25/175), respectively. Multiple logistic regression analysis showed that using unsafe water supply as a source for drinking water, the presence of domestic animals, not wearing shoes when outside, not washing vegetables before consumption, not washing hands after playing with soil, indiscriminate defecation and the low level of mother's education were the key risk factors for intestinal polyparasitism among the Orang Asli, while working mothers and the presence of domestic animals were the risk factors among the Malay children. Almost all the Malays were well aware about the IPIs while Orang Asli respondents had a poor level of related awareness.

    CONCLUSIONS: This study demonstrates that IPIs are highly prevalent in rural Terengganu, Malaysia. Community awareness about IPIs was found to be imperative in protecting Malay children from these infections. An integrated control programme for the prevention and control of IPIs is highly recommended for these communities, with a special emphasis on the Orang Asli population.

    Matched MeSH terms: Intestinal Diseases, Parasitic/prevention & control; Coinfection/prevention & control
  11. Fulltext International consensus recommendations for difficult biliary access
    Liao WC, Angsuwatcharakon P, Isayama H, Dhir V, Devereaux B, Khor CJ, et al.
    Gastrointest Endosc, 2017 Feb;85(2):295-304.
    PMID: 27720741 DOI: 10.1016/j.gie.2016.09.037
    Matched MeSH terms: Pancreatitis/prevention & control; Postoperative Complications/prevention & control
  12. Evaluation of combined Pasteurella vaccines in control of sheep pneumonia
    Chandrasekaran S, Hizat K, Saad Z, Johara MY, Yeap PC
    Br. Vet. J., 1991 Sep-Oct;147(5):437-43.
    PMID: 1959015
    The effectiveness of an oil adjuvant vaccine (OAV) incorporating locally isolated strains of Pasteurella haemolytica type 7 and Pasteurella multocida types A and D was compared with that of Carovax (Wellcome Laboratories) in imported cross-bred lambs. The criterion of efficacy was the ability of the vaccines to reduce the extent of pneumonic lesions in vaccinated as against unvaccinated control lambs. The OAV produced at this Institute significantly reduced the lung lesions at P less than 0.05 level compared with its control group when challenged with P. haemolytica alone. However, the vaccine was unsatisfactory against P. multocida or combined P. multocida P. haemolytica challenge. Carovax did not produce any significant reduction in the lung lesions caused by P. haemolytica and/or P. multocida.
    Matched MeSH terms: Sheep Diseases/prevention & control*; Pasteurellosis, Pneumonic/prevention & control*
  13. Fulltext The effect of piroxicam in preventing surgically induced miosis
    Au MK, Singh P
    Med J Malaysia, 1991 Dec;46(4):329-32.
    PMID: 1840440
    The effect of an antiprostaglandin, piroxicam, in preventing surgically induced miosis is studied. Patients undergoing extracapsular cataract surgery were randomly divided into the piroxicam and placebo groups. Intra-operative measurements of the pupillary diameters were performed. The stages of procedure at which they were measured were at the beginning of operation (Stage 1), after anterior capsulotomy (Stage 2), after lens nucleus delivery (Stage 3) and at the end of irrigation and aspiration (Stage 4). It is noted in this Study that the pupillary diameters were larger at stages 2,3 and 4 in the piroxicam group. The increase in the mean pupillary areas of the piroxicam group were statistically significant for Stages 3 and 4.
    Matched MeSH terms: Postoperative Complications/prevention & control*; Miosis/prevention & control*
  14. Fulltext The use of single dose of sodium citrate as a prophylaxis against acid aspiration syndrome in obstetric patients undergoing caesarean section
    Lim SK, Elegbe EO
    Med J Malaysia, 1991 Dec;46(4):349-55.
    PMID: 1840444
    The effectiveness of sodium citrate as a prophylaxis against acid aspiration syndrome was studied in 3 groups of obstetric patients. Group I was the control group which consisted of 20 patients in established labour who were not likely to require caesarean section. No antacid had been given to these patients. Group II consisted of 20 patients who underwent elective caesarean section, while Group III consisted of another 20 patients who underwent emergency caesarean section. Group II and III were given 30ml of 0.3M sodium citrate as soon as they arrived in the operation theatre. The gastric content was aspirated after the induction of anaesthesia and at the end of surgery just before extubation. The volume was measured and a sample sent for pH analysis. Sodium citrate was found to increase the gastric pH significantly in both Group II and III patients when compared with Group I patients who underwent emergency caesarean section. We conclude that 30ml of 0.3M sodium citrate is effective in increasing gastric pH though it tends to be associated with an increase in gastric volume.
    Matched MeSH terms: Intraoperative Complications/prevention & control*; Pneumonia, Aspiration/prevention & control*
  15. Newcastle disease vaccination in Malaysia: application of oil emulsion vaccine
    Ernawati R, Ibrahim AL
    Vet Rec, 1984 Oct 06;115(14):352-4.
    PMID: 6495601
    An experimental oil emulsion Newcastle disease vaccine was evaluated for its efficacy in broiler chickens. A group of chickens vaccinated at one day old with a live lentogenic Newcastle disease vaccine and subsequently revaccinated at three and eight weeks old with the experimental oil emulsion vaccine showed satisfactory haemagglutination inhibition antibody response which persisted for 18 weeks. Between 90 and 100 per cent of the vaccinated chickens were protected when challenged with the velogenic viscerotropic Newcastle disease virus. Although the vaccinated chickens were protected against clinical disease, virus could be isolated from a number of birds. By day 10 to 12 after challenge all the chickens were free from Newcastle disease infection.
    Matched MeSH terms: Newcastle Disease/prevention & control*; Poultry Diseases/prevention & control*
  16. Forfeiture of the profits and proceeds derived from drug trafficking: thoughts on future action in Malaysia
    Vohrah KC
    Bull Narc, 1984 Oct-Dec;36(4):31-41.
    PMID: 6570698
    While the Dangerous Drugs Act 1952 of Malaysia has been amended to take into account changing patterns of drug abuse and trafficking, it lacks provisions for the mandatory forfeiture of proceeds derived from drug trafficking. Nor do the general powers of forfeiture in the Criminal Procedure Code of the country extend to such proceeds. To meet further changing patterns of drug trafficking involving criminal syndicate leaders, who rarely incriminate themselves through overt and detectable acts, Malaysia has a bill in Parliament the purpose of which, when it becomes law, is to detain without trial, upon cogent evidence, persons who have been associated with any activity relating to or involving drug trafficking, and to prevent them from further committing drug crimes. In addition, serious thinking has been given to the possibility of adopting, within the constraints of the Malaysian Constitution, a law on forfeiture of the proceeds derived from drug trafficking. There are, in this respect, several problems to be resolved, such as the secrecy of bank accounts and taxpayers' returns, which might make it difficult to trace proceeds and to keep track of tainted money being remitted abroad, although it is believed that such problems could be overcome by domestic measures. A more serious problem is the lack of international co-operation for investigations to be carried out outside national borders to trace, seize, freeze and secure the forfeiture of the proceeds of drug crimes located abroad.
    Matched MeSH terms: Crime/prevention & control*; Substance-Related Disorders/prevention & control*
  17. Penal measures for drug offences: perspectives from some Asian countries
    Jayasuriya DC
    Bull Narc, 1984 Jul-Sep;36(3):9-13.
    PMID: 6570654
    The importance of penal measures in the control of drugs has been recognized by various Asian countries during the last three centuries. The countries of the Asian region referred to in this article have legislation providing for different penal measures against drug offences. Severe punitive sanctions, including the death penalty, have been prescribed for serious drug offences by Iran (Islamic Republic of), Malaysia, the Philippines, Singapore, Sri Lanka and Thailand. Several countries in the region have made legal provisions for the compulsory treatment and rehabilitation of drug dependent persons. There is, however, a paucity of research studies on the efficiency of penal measures and approaches in drug control. Given the long tradition of punitive measures and the wide variety of penal approaches adopted to cope with drug-related problems, various Asian countries can provide interesting cases for criminological research on the effectiveness of penal measures in combating drug problems.
    Matched MeSH terms: Crime/prevention & control*; Substance-Related Disorders/prevention & control*
  18. Summary of an eleven-country study of socio-legal measures to combat drug abuse and related crime
    Asuni T, Bruno F
    Bull Narc, 1984 Jul-Sep;36(3):3-8.
    PMID: 6570650
    In a comparative study of a group of experimental and control subjects in Argentina, Brazil, Costa Rica, Japan, Jordan, Italy, Malaysia, Singapore and the United States of America (State of New York), and of the results of independent studies conducted in Sweden and the United Kingdom of Great Britain and Northern Ireland, a rather close association was found to exist between drug abuse, criminal behaviour and social attitudes to such problems. Both drug abuse and the socio-legal systems varied greatly in the countries involved. No correlation was found between the level of foreseen or actual harshness of the socio-legal system and the level of seriousness of drug abuse and its associated criminality, but there was a significant correlation between knowledge of the law and the efficacy of the socio-legal system. In each country informal control systems, such as the family, church, school, neighbourhood and work environment, were active. Approximately one half of the subjects that were interviewed from countries with the most punitive socio-legal systems perceived informal controls as harsh and punitive while in the other countries such controls were generally perceived as positive. The study encouraged the review, testing and implementation of alternative measures to penal sanctions, particularly with a view to creating a genuine therapeutic approach to correcting the deviant behaviour of drug abusers.
    Matched MeSH terms: Crime/prevention & control*; Substance-Related Disorders/prevention & control*
  19. The resistance of meat chickens vaccinated by aerosol with a live V4 Newcastle disease virus vaccine in the field to challenge with a velogenic Newcastle disease virus
    Bell IG, Nicholls PJ, Norman C, Ideris A, Cross GM
    Aust Vet J, 1991 Mar;68(3):97-101.
    PMID: 2043098
    Meat chickens housed on a commercial broiler farm in Australia were vaccinated once at 10 to 11 days-of-age by aerosol with live V4 Newcastle disease virus (NDV) vaccine. Groups of vaccinated and unvaccinated birds were flown to Malaysia, where they were challenged with a virulent strain of NDV. Survival rates in vaccinated chickens challenged 7, 14, 21 or 31 d after vaccination were 0.47, 0.77, 0.97 and 0.92, respectively. All unvaccinated chickens died due to Newcastle disease (ND) following challenge. Chickens in Australia and Malaysia were bled and the serums tested for haemagglutination-inhibiting (HI) antibody to NDV. Many vaccinated birds with no detectable antibody, and all birds with a log2 titre of 2 or greater, survived challenge. The results showed that this V4 vaccine induced protective immunity in a significant proportion of chickens within 7 d of mass aerosol vaccination. This early immunity occurred in the absence of detectable circulating HI antibody. Non-HI antibody mediated immunity continued to provide protection up to 31 d after vaccination. Almost all vaccinated birds were protected within 3 w of vaccination. It is concluded that the V4 vaccine is efficacious and could be useful during an outbreak of virulent ND in Australia.
    Matched MeSH terms: Disease Outbreaks/prevention & control; Newcastle Disease/prevention & control*
  20. Fulltext Management of variceal haemorrhage
    Merican MI
    Med J Malaysia, 1992 Dec;47(4):238-47.
    PMID: 1363889
    Variceal bleeding is the most important complication of portal hypertension. Mortality due to the first variceal bleeding is very high (50%) and of those surviving a variceal bleeding episode, up to 80% may rebleed. Proper management of the acute variceal bleeding episode, the prevention of rebleeding and primary prophylaxis for variceal haemorrhage are therefore mandatory in order to improve the morbidity and mortality of cirrhotic patients with variceal bleeding. Injection sclerotherapy would be the treatment of choice for acute variceal bleeding. Drug treatment in the form of either a combined vasopressinnitroglycerin regimen or somatostatin may be used as an alternative. Patients not responding to these treatments should be referred for surgery. For the prevention of variceal rebleeding, non-selective betablockers should be tried first, reserving long-terminjection sclerotherapy for patients with contraindications or intolerance to beta-blockers or in whom beta-blocker therapy has failed. Surgical rescue in the form of either shunt surgery or lever transplantation should be considered if either treatment fails. A new technique, transjugular intrahepatic portosystemic stent-shunt (TIPSS) may replace shunt surgery in the future. Beta-blockers is the treatment of choice for primary prophylaxis of variceal haemorrhage and has a role in preventing acute and chronic bleeding from congestive gastropathy. However, the above sequential approach from the least invasive to the more invasive therapeutic options may not be appropriate for all cirrhotic patients with variceal bleeding.
    Matched MeSH terms: Esophageal and Gastric Varices/prevention & control; Gastrointestinal Hemorrhage/prevention & control
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