Displaying publications 81 - 100 of 391 in total

Abstract:
Sort:
  1. Singh M, Zaman V, Goh TK, Kheng CS
    Med J Malaya, 1967 Dec;22(2):115-7.
    PMID: 4231976
    Matched MeSH terms: Swine; Swine Diseases/immunology
  2. Simpson DI, Bowen ET, Way HJ, Platt GS, Hill MN, Kamath S, et al.
    Ann Trop Med Parasitol, 1974 Dec;68(4):393-404.
    PMID: 4155608
    Matched MeSH terms: Swine
  3. Simpson DI, Bowen ET, Platt GS, Way H, Smith CE, Peto S, et al.
    Trans R Soc Trop Med Hyg, 1970;64(4):503-10.
    PMID: 4394986
    Matched MeSH terms: Swine; Swine Diseases/epidemiology
  4. Simpson DI, Smith CE, Marshall TF, Platt GS, Way HJ, Bowen ET, et al.
    Trans R Soc Trop Med Hyg, 1976;70(1):66-72.
    PMID: 1265821
    The possible role of pigs as arbovirus maintenance hosts and their importance as amplifier hosts was studied. Blood samples from 464 pigs of all ages collected in 1962 and 1964 were tested against 10 arboviruses. Antibodies to Japanese encephalitis and Getah viruses were particularly prevalent and their calculated monthly infection rates were 19-5% and 13-3% respectively. In 1969, 447 pigs were bled monthly throughout the year and the infection rates for Japanese encephalitis virus were calculated in pigs during the first year of life. Infection rates were not uniform throughout the year; the rate increases as the pig grew older and there was a marked seasonal increase in the infection rate in the period from November to January. This coincided with the seasonal major population peak of Culex tritaeniorhynchus following intense breeding of this mosquito prior to rice planting. It is suggested that, in Sarawak, the pig acts as a maintenance host of Japanese encephalitis in a cycle involving C. gelidus mosquitoes and also acts as an important amplifier host towards the end of the year in a cycle involving C. tritaeniorhynchus. It is further suggested that Getah virus is maintained in a similar cycle between C. tritaeniorhynchus and pigs.
    Matched MeSH terms: Swine/microbiology*
  5. Shuai L, Ge J, Wen Z, Wang J, Wang X, Bu Z
    Vet Microbiol, 2020 Feb;241:108549.
    PMID: 31928698 DOI: 10.1016/j.vetmic.2019.108549
    Nipah virus (NiV) is a re-emerging zoonotic pathogen that causes high mortality in humans and pigs. Oral immunization in free-roaming animals is one of the most practical approaches to prevent NiV pandemics. We previously generated a recombinant rabies viruses (RABV) Evelyn-Rokitnicki-Abelseth (ERA) strain, rERAG333E, which contains a mutation from arginine to glutamic acid at residue 333 of glycoprotein (G333E) and serves as an oral vaccine for dog rabies. In this study, we generated two recombinant RABVs, rERAG333E/NiVG and rERAG333E/NiVF, expressing the NiV Malaysian strain attachment glycoprotein (NiV-G) or fusion glycoprotein (NiV-F) gene based on the rERAG333E vector platform. Both rERAG333E/NiVG and rERAG333E/NiVF displayed growth properties similar to those of rERAG333E and caused marked syncytia formation after co-infection in BSR cell culture. Adult and suckling mice intracerebrally inoculated with the recombinant RABVs showed NiV-G and NiV-F expression did not increase the virulence of rERAG333E. Oral vaccination with rERAG333E/NiVG either singularly or combined with rERAG333E/NiVF induced significant NiV neutralizing antibody against NiV and RABV, and IgG to NiV-G or NiV-F in mice and pigs. rERAG333E/NiVG and rERAG333E/NiVF thus appeared to be suitable candidates for further oral vaccines for potential animal targets in endemic areas of NiV disease and rabies.
    Matched MeSH terms: Swine
  6. Shokryazdan P, Faseleh Jahromi M, Liang JB, Ho YW
    J Am Coll Nutr, 2017 09 22;36(8):666-676.
    PMID: 28937854 DOI: 10.1080/07315724.2017.1337529
    Probiotics have become highly recognized as supplements for humans and animals because of their beneficial effects on health and well-being. The present review aims to provide an overview of different steps through which microbial strains become applicable probiotics in food and/or feed industries. Isolation of potential probiotic strains is the first step. Lactic acid bacteria are the most frequently used microorganisms as probiotics, which can be isolated from human, animal, plant, and environment. The next steps are identification of the isolates and characterization of them based on the main selection criteria for any potential probiotic microorganism, including resistance to gastric acidity and bile salt, adherence to mucus and/or intestinal epithelial cells and cell lines, and antimicrobial and antagonism activity against potentially pathogenic microbes. There are additional probiotic properties that may be considered for selection of probiotic strains with specific effects, such as cholesterol reduction ability, antioxidant activity, or cytotoxic effect against cancer cells. However, a potential probiotic does not need to fulfill all such selection criteria. As the last step, safety status of probiotics for humans is verified by taxonomy clarification, in vitro and in vivo tests, human trials, and genome sequencing.
    Matched MeSH terms: Swine/microbiology
  7. Sherrini BA, Chong TT
    Med J Malaysia, 2014 Aug;69 Suppl A:103-11.
    PMID: 25417957
    Between September 1998 to May 1999, Malaysia and Singapore were hit by an outbreak of fatal encephalitis caused by a novel virus from the paramyxovirus family. This virus was subsequently named as Nipah virus, after the Sungei Nipah village in Negeri Sembilan, where the virus was first isolated. The means of transmission was thought to be from bats-topigs and subsequently pigs-to-human. Since 2001, almost yearly outbreak of Nipah encephalitis has been reported from Bangladesh and West Bengal, India. These outbreaks were characterized by direct bats-to-human, and human-to-human spread of infection. Nipah virus shares many similar characteristics to Hendra virus, first isolated in an outbreak of respiratory illness involving horses in Australia in 1994. Because of their homology, a new genus called Henipavirus (Hendra + Nipah) was introduced. Henipavirus infection is a human disease manifesting most often as acute encephalitis (which may be relapsing or late-onset) or pneumonia, with a high mortality rate. Pteropus bats act as reservoir for the virus, which subsequently lead to human spread. Transmission may be from consumption of food contaminated by bats secretion, contact with infected animals, or human-to-human spread. With wide geographical distribution of Pteropus bats, Henipavirus infection has become an important emerging human infection with worldwide implication.
    Matched MeSH terms: Swine
  8. Sharma V, Kaushik S, Kumar R, Yadav JP, Kaushik S
    Rev Med Virol, 2019 Jan;29(1):e2010.
    PMID: 30251294 DOI: 10.1002/rmv.2010
    Since emergence of the Nipah virus (NiV) in 1998 from Malaysia, the NiV virus has reappeared on different occasions causing severe infections in human population associated with high rate of mortality. NiV has been placed along with Hendra virus in genus Henipavirus of family Paramyxoviridae. Fruit bats (Genus Pteropus) are known to be natural host and reservoir of NiV. During the outbreaks from Malaysia and Singapore, the roles of pigs as intermediate host were confirmed. The infection transmitted from bats to pigs and subsequently from pigs to humans. Severe encephalitis was reported in NiV infection often associated with neurological disorders. First NiV outbreak in India occurred in Siliguri district of West Bengal in 2001, where direct transmission of the NiV virus from bats-to-human and human-to-human was reported in contrast to the role of pigs in the Malaysian NiV outbreak. Regular NiV outbreaks have been reported from Bangladesh since 2001 to 2015. The latest outbreak of NiV has been recorded in May, 2018 from Kerala, India which resulted in the death of 17 individuals. Due to lack of vaccines and effective antivirals, Nipah encephalitis poses a great threat to public health. Routine surveillance studies in the infected areas can be useful in detecting early signs of infection and help in containment of these outbreaks.
    Matched MeSH terms: Swine; Swine Diseases/epidemiology*; Swine Diseases/virology*
  9. Shahimi S, Abd Mutalib S, Ismail N, Elias A, Hashim H, Kashim MIAM
    Saudi J Biol Sci, 2021 Apr;28(4):2447-2452.
    PMID: 33911957 DOI: 10.1016/j.sjbs.2021.01.043
    This study was conducted to detect the presence of chicken and porcine DNA in meatballs using mitochondria DNA (mtDNA) of cytochrome b (cyt b) and nuclear DNA (nDNA) short interspersed nuclear element (SINE) species-specific primers, respectively. While, the mtDNA primers targeted transfer RNA-ATP8 (tRNA-ATP8) gene was used for 1 and 5% (w/w) chicken meatball spiked with commercial porcine blood plasm. Chicken meatballs spiked with 1% and 5% (v/w) fresh and commercial porcine blood plasma, respectively were prepared and heat-treated using five (n = 5) cooking methods: boiling, pan-frying, roasting, microwaving and autoclaving. Two pairs of mtDNA and nDNA primers used, produced 129 and 161 bp amplicons, respectively. Whereas, tRNA-ATP8 primers produced 212 bp of amplicon. Electrophoresis analysis showed positive results for porcine DNA at 1% and 5% (w/w or v/v) for all of the different cooking techniques, either for fresh or commercial blood plasma using SINE primers but not for tRNA-ATP8 primers. The present study has highlighted the useful of species-specific primers of SINE primers in PCR analysis for detecting porcine DNA blood plasma in heat-treated chicken meatballs.
    Matched MeSH terms: Swine
  10. Shahimi S, Lamri MF, Abd Mutalib S, Mohd Khalid R, Md Tab M, Khairuddin F
    Food Chem, 2021 Sep 01;355:129586.
    PMID: 33773458 DOI: 10.1016/j.foodchem.2021.129586
    In order to invent a porcine gelatine detection device using microbial resources, bacterial enzymes with a preference towards porcine gelatine and their candidate genes were evaluated. Five (n = 5) bacterial strains isolated from hot spring water and wet clay, Malaysia were screened for their gelatinase activity. The gelatinase enzyme was extracted and purified using ammonium sulphate precipitation prior to performing gelatinase assay on porcine, bovine and fish gelatine medium substrates. The G2 strain or Enterobacter aerogenes (Strain EA1) was selected for whole genome sequenced after showing a consistent trend of preference towards porcine gelatine. The gelatinase candidate gene gelEA1_9 was cloned and expressed. Based on one-way analysis of variance (ANOVA) with POST-HOC Duncan test (α = 0.05), the final product of gelEA1_9 was identified as a novel gelatinase. This gelatinase presented no significant difference in activity towards porcine gelatine. Hence, the present study demonstrated an enzyme-substrate interaction for porcine gelatine identification.
    Matched MeSH terms: Swine
  11. Sam SS, Teoh BT, Chee CM, Mohamed-Romai-Noor NA, Abd-Jamil J, Loong SK, et al.
    Sci Rep, 2018 12 05;8(1):17632.
    PMID: 30518924 DOI: 10.1038/s41598-018-36043-6
    Getah virus (GETV), a mosquito-borne alphavirus, is an emerging animal pathogen causing outbreaks among racehorses and pigs. Early detection of the GETV infection is essential for timely implementation of disease prevention and control interventions. Thus, a rapid and accurate nucleic acid detection method for GETV is highly needed. Here, two TaqMan minor groove binding (MGB) probe-based quantitative reverse transcription-polymerase chain reaction (qRT-PCR) assays were developed. The qRT-PCR primers and TaqMan MGB probe were designed based on the conserved region of nsP1 and nsP2 genes of 23 GETV genome sequences retrieved from GenBank. Only the qRT-PCR assay using nsP2-specific primers and probe detected all two Malaysia GETV strains (MM2021 and B254) without cross-reacting with other closely related arboviruses. The qRT-PCR assay detected as few as 10 copies of GETV RNA, but its detection limit at the 95% probability level was 63.25 GETV genome copies (probit analysis, P ≤ 0.05). Further validation of the qRT-PCR assay using 16 spiked simulated clinical specimens showed 100% for both sensitivity and specificity. In conclusion, the qRT-PCR assay developed in this study is useful for rapid, sensitive and specific detection and quantification of GETV.
    Matched MeSH terms: Swine; Swine Diseases/diagnosis; Swine Diseases/virology
  12. Sam IC, Abu Bakar S
    Med J Malaysia, 2009 Jun;64(2):105-7.
    PMID: 20058566
    In recent years, zoonotic RNA viruses such as Nipah, SARS coronavirus, avian influenza (H5N1) and Chikungunya have emerged with global impact. The latest has now been designated by World Health Organization (WHO) as pandemic (H1N1) 2009 virus. It was first reported as an outbreak in Mexico in April, and has now caused the first influenza pandemic since 1968. By July 11, 2009, there were 105,304 confirmed cases and 463 deaths in 143 countries, including 627 cases in Malaysia1 . The rapid spread of the disease has been matched by the speed of dissemination of information and protocols, co-ordinated by WHO. The experiences of SARS and H5N1 have been enormously beneficial in preparing the world for a pandemic.
    Matched MeSH terms: Swine/virology
  13. Sakai N, Sakai M, Mohamad Haron DE, Yoneda M, Ali Mohd M
    Chemosphere, 2016 Dec;165:183-190.
    PMID: 27654221 DOI: 10.1016/j.chemosphere.2016.09.022
    Fourteen beta-agonists were quantitatively analyzed in cattle, chicken and swine liver specimens purchased at 14 wet markets in Selangor State, Malaysia, by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The health risks of ractopamine and clenbuterol residues in the Malaysian population were assessed based on quantitative data and meat consumption statistics in Malaysia. Wastewater samples collected at swine farms (n = 2) and cattle/cow farms (n = 2) in the Kuala Langat district were analyzed for the presence for the 14 compounds. Wastewater in chicken farms was not collected because there was negligible discharge during the breeding period. The environmental impacts caused by beta-agonists discharged from livestock farms were spatially assessed in the Langat River basin using a geographic information system (GIS). As a result, 10 compounds were detected in the liver specimens. Ractopamine, which is a permitted compound for swine in Malaysia, was frequently detected in swine livers; also, 9 other compounds that are prohibited compounds could be illegally abused among livestock farms. The health risks of ractopamine and clenbuterol were assessed to be minimal as their hazard quotients were no more than 7.82 × 10(-4) and 2.71 × 10(-3), respectively. Five beta-agonists were detected in the wastewater samples, and ractopamine in the swine farm resulted in the highest contamination (30.1 μg/L). The environmental impacts of the beta-agonists in the Langat River basin were generally concluded to be minimal, but the ractopamine contamination released from swine farms was localized in coastal areas near the estuary of the Langat River basin because most swine farms were located in that region.
    Matched MeSH terms: Swine
  14. Sahu PS, Lim YAL, Mahmud R, Somanath SD, Tan CT, Ramachandran CP
    Asian Pac J Trop Med, 2017 Apr;10(4):332-340.
    PMID: 28552103 DOI: 10.1016/j.apjtm.2017.03.024
    Seizures due to neurocysticercosis (NCC) is a neglected human-to-human transmitted disorder and an emerging problem worldwide. A substantial portion of recent onset seizures is known to be attributed to NCC in Taenia solium (T. solium) endemic areas where populations which neither raise pigs nor eat pig meat are also at risk. High prevalence of NCC causing epilepsy has been reported in the underdeveloped areas of Southeast Asia (SEA) however, only fragmentary information on its incidence is available in countries like Malaysia. In Malaysia T. solium infection was previously thought to be infrequent due to Muslim population majority and the religious prohibition of consuming pork, but it is not totally absent. There is an evident lack of knowledge and awareness of the actual burden, routes of transmission, and the impact of NCC in this region. The problem is assumed to be more prevalent particularly in cities because of the frequent inflow of possibly T. solium infected individuals or carriers among those who migrate from neighboring endemic countries to Malaysia. The issue of imported cases that are likely to be emerging in Malaysia is highlighted here. An accurate quantification of regional burdens of epilepsy due to NCC in Malaysia is warranted considering the disease emergence in its neighboring countries. It is suggested that the importance of NCC be recognized through quantification of its burden, and also to collect epidemiological data for its subsequent elimination in line of World Health Organization's mission for control of cysticercosis as a neglected tropical disease. In this review the need as well as a strategy for neuro-care center screening of epilepsy cases, and various issues with possible explanations are discussed. It is also proposed that NCC be declared as a reportable disease which is one of the eradicable public health problems in SEA.
    Matched MeSH terms: Swine
  15. Sahilah, A.M., Mohd Fadly, L., Norrakiah, A.S., Aminah, A., Wan Aida, W.M., Ma'aruf, A.G., et al.
    MyJurnal
    The study was conducted to detect the porcine DNA in pharmaceutical products in local market using polymerase chain reaction (PCR) and southern-hybridization on the biochip. A total of 113 (n=113) of hard (82 samples) and soft gel (31 samples) capsules from pharmaceutical products were purchased and tested for the presence of porcine DNA for Halal authentication. All capsules were gelatin-based purchased from local over the counter (OTC) markets. Of all samples tested, 37.2% (42/113) contained porcine DNA. While, none porcine DNA band was detected for 62.8% (71/113) of capsules tested. All samples which were positive toward porcine DNA were imported pharmaceutical products with none Halal logo. Results in the presence study demonstrated that the PCR techniques and southern-hybridization on the biochip is suitable tool for monitoring the Haram component in highly processed product of soft and hard capsule.
    Matched MeSH terms: Swine
  16. Sahilah Abu Mutalib, Wan Sakeenah Wan Nazari, Safiyyah Shahimi, Norhayati Yaakob, Norrakiah Abdullah Sani, Aminah Abdullah, et al.
    Sains Malaysiana, 2012;41:199-204.
    A method of PCR-restriction fragment length polymorphism (RFLP) has been utilized to differentiate the mitochondrial genes of pork and wild boar meat (Sus scrofa). The amplification PCR products of 359 bp and 531 bp were successfully amplified from the cyt b gene of these two meats. The amplification product of pork and wild boar using mt-12S rRNA gene successfully produced a single band with molecular size of 456 bp. Three restriction endonucleases (AluI, HindIII and BsaJI) were used to restrict the amplification products of the mitochondrial genes. The restriction enzymes of AluI and BsaJI were identified as potential restriction endonucleases to differentiate those meats. HindIII enzyme was unable to restrict the PCR product of both meats. The genetic differences within the cyt b gene among the two meats were successfully confirmed by PCR-RFLP analysis.
    Matched MeSH terms: Swine
  17. Sahani M, Parashar UD, Ali R, Das P, Lye MS, Isa MM, et al.
    Int J Epidemiol, 2001 Oct;30(5):1017-20.
    PMID: 11689513
    BACKGROUND: An outbreak of encephalitis primarily affecting pig farmers occurred during 1998-1999 in Malaysia and was linked to a new paramyxovirus, Nipah virus, which infected pigs, humans, dogs, and cats. Because five abattoir workers were also affected, a survey was conducted to assess the risk of Nipah infection among abattoir workers.

    METHODS: Workers from all 143 registered abattoirs in 11 of 13 states in Malaysia were invited to participate in this cross-sectional study. Participants were interviewed to ascertain information on illness and activities performed at the abattoir. A serum sample was obtained to test for Nipah virus antibody.

    RESULTS: Seven (1.6 %) of 435 abattoir workers who slaughtered pigs versus zero (0%) of 233 workers who slaughtered ruminants showed antibody to Nipah virus (P = 0.05). All antibody-positive workers were from abattoirs in the three states that reported outbreak cases among pig farmers. Workers in these three states were more likely than those in other states to have Nipah antibody (7/144 [4.86%] versus 0/291 [0%], P < 0.001) and report symptoms suggestive of Nipah disease in pigs admitted to the abattoirs (P = 0.001).

    CONCLUSIONS: Nipah infection was not widespread among abattoir workers in Malaysia and was linked to exposure to pigs. Since it may be difficult to identify Nipah-infected pigs capable of transmitting virus by clinical symptoms, using personal protective equipment, conducting surveillance for Nipah infection on pig farms which supply abattoirs, and avoiding handling and processing of potentially infected pigs are presently the best strategies to prevent transmission of Nipah virus in abattoirs.

    Matched MeSH terms: Swine
  18. Safiyyah Shahimi, Wan Sakeenah Wan Nazri, Aminah Abdullah, Norrakiah Abdullah Sani, Sahilah Abd. Mutalib
    Sains Malaysiana, 2018;47:1535-1540.
    Genomic DNA of 13 fish (n=13) species consist of four freshwater which were catfish (Clarias gariepinus), shark catfish (Pangasius larnaudii), tilapia (Oreochromis mossambicus), perch (Lates calcarifer) and nine marine species which were black pomfret (Parastromateus niger), anchovy (Stolephorus commersonii), mabong (Rastrelliger kanagurta), red snapper (Lutjanus erythropterus), herring (Chirocentrus dorab), ray fish (Himantura gerrardii), sardine (Decapterus macrosoma), mackerel (Euthynnus affinis) and tuna (Thunnus tuna) were differentiated using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Seven endonucleases of AluI, BsaJI, HaeIII, HindIII, HinfI, MboI and MboII were examined for the ability to digest cyt b amplicon from each species. Genomic DNA of pork (Sus scrofa domestica) were differentiated from fishes by comparing the digestion patterns produced by similar amplified region and enzymes used. In the present study, it was demonstrated that fishes and pork DNA genome were successfully differentiated using all endonucleases except for HindIII. Thus, PCR-RFLP analysis was found useful for future pork DNA detection in fish products.
    Matched MeSH terms: Swine
  19. Ruviniyia K, Abdullah DA, Sumita S, Lim YAL, Ooi PT, Sharma RSK
    Parasitol Res, 2020 May;119(5):1663-1674.
    PMID: 32219552 DOI: 10.1007/s00436-020-06648-w
    Enterocytozoon bieneusi is an emerging opportunistic pathogen infecting humans, and both domestic and wild pigs are known to harbour zoonotic genotypes. There remains a paucity of information on the prevalence and epidemiology of this enteropathogen in Southeast Asia. The present study was undertaken to determine the molecular prevalence and risk factors associated with E. bieneusi infection among commercially farmed pigs in Malaysia. Faecal samples were collected from 450 pigs from 15 different farms and subjected to nested PCR amplification of the ribosomal internal transcribed spacer (ITS) gene of E. bieneusi. Phylogenetic analysis involved 28 nucleotide sequences of the ITS region of E. bieneusi. An interviewer-administered questionnaire provided information on the animal hosts, farm management systems and environmental factors and was statistically analysed to determine the risk factors for infection. The prevalence of E. bieneusi infection was relatively high (40.7%). The highest prevalence (51.3%) was recorded among the piglets, while the adults showed the lowest level of infection (31.3%). Multivariate analysis indicated that age of the pigs, distance of the farm from human settlement and farm management system were significant risk factors of infection. Three genotypes (EbpA, EbpC and Henan-III) detected among the pigs are potentially zoonotic. The high prevalence of E. bieneusi among locally reared pigs, the presence of zoonotic genotypes and the spatial distribution of pig farms and human settlements warrant further investigation on the possibility of zoonotic transmission.
    Matched MeSH terms: Swine/parasitology*; Swine Diseases/epidemiology*
Filters
Contact Us

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

External Links