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Khoo TT, Cheo SW, Low QJ, Tan YA, Wong LLL. Primary splenic hodgkin lymphoma masquerading as splenic abscess. Med J Malaysia 2021; 76:118-120. [PMID: 33510123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hodgkin lymphoma is a form of malignant lymphoid neoplasm. It can have various clinical presentations such as prolonged fever, night sweats, weight loss and asymptomatic lymphadenopathy. It has a distinct fever pattern known as Pel Ebstein fever. However, in some instances, its clinical presentation can mimic some tropical infections. Here, we present a case of primary splenic lymphoma masquerading as splenic abscess in a 53-yearold man with underlying dyslipidemia.
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Affiliation(s)
- T T Khoo
- Hospital Queen Elizabeth, Department of Internal Medicine, Neurology Unit, Kota Kinabalu, Sabah, Malaysia
| | - S W Cheo
- Hospital Lahad Datu, Department of Internal Medicine, Lahad Datu, Sabah, Malaysia.
| | - Q J Low
- Hospital Sultanah Nora Ismail, Department of Internal Medicine, Batu Pahat, Johor, Malaysia
| | - Y A Tan
- Hospital Queen Elizabeth, Department of Internal Medicine, Neurology Unit, Kota Kinabalu, Sabah, Malaysia
| | - L L L Wong
- Hospital Queen Elizabeth, Department of Internal Medicine, Neurology Unit, Kota Kinabalu, Sabah, Malaysia
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2
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Cheo SW, Mohd Zamin H, Low QJ, Tan YA, Chia YK. A case of Takayasu Arteritis presenting with young stroke. Med J Malaysia 2020; 75:745-747. [PMID: 33219190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Stroke is a debilitating disease as it carries significant morbidity especially when it affects the younger population. There are various etiologies of young stroke, namely arterial dissection, cardioembolism, thrombophilia, inherited genetic disorder and vasculitis. Young patient with stroke should undergo complete evaluation to identify the underlying etiology in order to prevent recurrence of stroke. Here, we would like to illustrate a case of Takayasu arteritis presenting as young stroke in a 17-years-old lady with no known medical illness.
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Affiliation(s)
- S W Cheo
- Hospital Lahad Datu, Department of Internal Medicine, Sabah, Malaysia.
| | - H Mohd Zamin
- Hospital Lahad Datu, Department of Internal Medicine, Sabah, Malaysia
| | - Q J Low
- Hospital Sultanah Nora Ismail, Department of Internal Medicine, Batu Pahat, Johor, Malaysia
| | - Y A Tan
- Hospital Queen Elizabeth, Department of Internal Medicine, Kota Kinabalu, Sabah, Malaysia
| | - Y K Chia
- Hospital Queen Elizabeth, Department of Internal Medicine, Kota Kinabalu, Sabah, Malaysia
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3
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Cheo SW, Ahmad Akbar RZ, Abd Rahman F, Abdul Rashid WNF', Tan YA, Low QJ. Immune reconstitution inflammatory syndrome and human immunodeficiency virus infection. QJM 2020; 113:809-812. [PMID: 32275748 DOI: 10.1093/qjmed/hcaa122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/01/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- S W Cheo
- From the Department of Internal Medicine, Hospital Lahad Datu, Peti Bersurat 60065, Lahad Datu, Sabah 91110, Malaysia
| | - R Z Ahmad Akbar
- From the Department of Internal Medicine, Hospital Lahad Datu, Peti Bersurat 60065, Lahad Datu, Sabah 91110, Malaysia
| | - F Abd Rahman
- Department of Oral Pathology and Oral Medicine, Hospital Queen Elizabeth, Kota Kinabalu, Sabah 88200, Malaysia
| | - W N F 'a Abdul Rashid
- From the Department of Internal Medicine, Hospital Lahad Datu, Peti Bersurat 60065, Lahad Datu, Sabah 91110, Malaysia
| | - Y A Tan
- Department of Internal Medicine, Hospital Queen Elizabeth, Kota Kinabalu, Sabah 88200, Malaysia
| | - Q J Low
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat, Johor 83000, Malaysia
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4
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Cheo SW, Ong SAM, Low QJ, Tan YA, Chia YK. Familial neuromyelitis optica spectrum disorder in a pair of sisters. QJM 2020; 113:743-746. [PMID: 32240316 DOI: 10.1093/qjmed/hcaa107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Indexed: 11/12/2022] Open
Affiliation(s)
- S W Cheo
- Department of Internal Medicine, Hospital Lahad Datu, Peti Bersurat 60065, 91110, Lahad Datu, Sabah, Malaysia
| | - S A M Ong
- Neurology Unit, Department of Internal Medicine, Hospital Queen Elizabeth, 88200, Kota Kinabalu, Sabah, Malaysia
| | - Q J Low
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, 83000, Batu Pahat, Johor, Malaysia
| | - Y A Tan
- Department of Internal Medicine, Hospital Queen Elizabeth, 88200, Kota Kinabalu, Sabah, Malaysia
| | - Y K Chia
- Neurology Unit, Department of Internal Medicine, Hospital Queen Elizabeth, 88200, Kota Kinabalu, Sabah, Malaysia
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5
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Affiliation(s)
- Q J Low
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat, Johor 83000, Malaysia
| | - S A Hon
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat, Johor 83000, Malaysia
| | - P W Garry Siow
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat, Johor 83000, Malaysia
| | - T H Lim
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat, Johor 83000, Malaysia
| | - R A Lee
- Department of Radiology, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat, Johor 83000, Malaysia
| | - Y A Tan
- Department of Internal Medicine, Hospital Queen Elizabeth, Kota Kinabalu, Sabah 88300, Malaysia
| | - S W Cheo
- Department of Internal Medicine, Hospital Lahad Datu, Peti Bersurat 60065, Lahad Datu, Sabah 91110, Malaysia
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6
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Affiliation(s)
- Y A Tan
- Department of Internal Medicine, Hospital Queen Elizabeth, 139, Jalan Penampang, Kota Kinabalu 88200, Sabah, Malaysia
| | - K C Ng
- Department of Internal Medicine, Hospital Queen Elizabeth, 139, Jalan Penampang, Kota Kinabalu 88200, Sabah, Malaysia
| | - S W Cheo
- Department of Internal Medicine, Hospital Lahad Datu, Peti Bersurat 60065, Lahad Datu 91110, Sabah, Malaysia
| | - Q J Low
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat 83000, Johor, Malaysia
| | - Y K Chia
- Neurology Unit, Department of Internal Medicine, Hospital Queen Elizabeth, 139, Jalan Penampang, Kota Kinabalu 88200, Sabah, Malaysia
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Cheo SW, Khoo TT, Tan YA, Yeoh WC, Low QJ. A case of severe Plasmodium knowlesi malaria in a post-splenectomy patient. Med J Malaysia 2020; 75:447-449. [PMID: 32724015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Malaria is a parasitic disease that is caused by the Plasmodium parasite. Worldwide, it remains a significant public health problem especially in the Africa region where it contributes to more than 90% of cases and malaria death. However, zoonotic (simian) Plasmodium knowlesi parasite is a widely prevalent cause of malaria in the South East Asian countries. It is known to cause severe human disease due to its 24hour erythrocytic cycles. Thus far, cases of severe falciparum malaria have been reported in asplenic patients. Here, we report a case of severe P.knowlesi malaria in a 51-year-old man who is a postsplenectomy patient.
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Affiliation(s)
- S W Cheo
- Hospital Lahad Datu, Department of Internal Medicine, Sabah, Malaysia.
| | - T T Khoo
- Hospital Queen Elizabeth, Department of Internal Medicine, Sabah, Malaysia
| | - Y A Tan
- Hospital Queen Elizabeth, Department of Internal Medicine, Sabah, Malaysia
| | - W C Yeoh
- Hospital Queen Elizabeth, Department of Internal Medicine, Sabah, Malaysia
| | - Q J Low
- Hospital Sultanah Nora Ismail, Department of Internal Medicine, Johor, Malaysia
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Tan YA, Ng KC, Cheo SW, Low QJ, Chia YK. Response to: Stroke and infective endocarditis. QJM 2020; 113:517-518. [PMID: 32191336 DOI: 10.1093/qjmed/hcaa099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y A Tan
- Department of Internal Medicine, Hospital Queen Elizabeth, Kota Kinabalu, Sabah 88200, Malaysia
| | - K C Ng
- Department of Internal Medicine, Hospital Queen Elizabeth, Kota Kinabalu, Sabah 88200, Malaysia
| | - S W Cheo
- Department of Internal Medicine, Hospital Lahad Datu, Peti Bersurat 60065, Lahad Datu, Sabah 91110, Malaysia
| | - Q J Low
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat, Johor 83000, Malaysia
| | - Y K Chia
- Neurology Unit, Department of Internal Medicine, Hospital Queen Elizabeth, Kota Kinabalu, Sabah 88200, Malaysia
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Conlon MA, Sambanthamurthi R, Tan YA, Sundram K, Fairus S, Abeywardena MY. Consumption of an Oil Palm Fruit Extract Promotes Large Bowel Health in Rats. Nutrients 2020; 12:E644. [PMID: 32121179 PMCID: PMC7146302 DOI: 10.3390/nu12030644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/17/2020] [Accepted: 02/24/2020] [Indexed: 12/14/2022] Open
Abstract
Oil palm fruit is widely used for edible oils, but the health benefits of other components are relatively unknown. We examined if consuming a polyphenol-rich extract of the fruit, from a vegetation by-product of oil processing, which also contains fibre, has gastro-intestinal benefits in rats on a Western-type diet (WD). The oil palm preparation (OPP) was added to food (OPP-F) or drinking water (OPP-D) to provide 50 mg of gallic acid equivalents (GAE)/d and compared to effects of high amylose maize starch (HAMS; 30%) in the diet or green tea extract (GT; 50 mg GAE/d) in drinking water over 4 wk. OPP treatments induced some significant effects (P < 0.05) compared to WD. OPP-D increased caecal digesta mass, caecal digesta concentrations of total SCFA, acetate and propionate (OPP-F increased caecal butyrate concentration), the numbers of mucus-producing goblet cells per colonic crypt, and caecal digesta abundance of some bacteria which may provide benefit to the host (Faecalibacterium prausnitzii, Akkermansia muciniphila and Ruminococcus gnavus). HAMS induced similar effects but with greater potency and had a broader impact on microbe populations, whereas GT had minimal impacts. These results suggest dietary OPP may benefit the large bowel.
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Affiliation(s)
| | - Ravigadevi Sambanthamurthi
- Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, Kajang Selangor 43000, Malaysia; (R.S.); (S.F.)
| | - Yew Ai Tan
- Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, Kajang Selangor 43000, Malaysia; (R.S.); (S.F.)
| | - Kalyana Sundram
- Malaysian Palm Oil Council, 2nd Floor, Wisma Sawit, Jalan Perbandaran, Kelana Jaya 47301, Selangor, Malaysia;
| | - Syed Fairus
- Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, Kajang Selangor 43000, Malaysia; (R.S.); (S.F.)
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Affiliation(s)
- S W Cheo
- Department of Internal Medicine, Hospital Lahad Datu, Peti Bersurat 60065, Lahad Datu, Sabah 91110, Malaysia
| | - Q J Low
- Department of Internal Medicine, Hospital Sultanah Nora Ismail, Jalan Korma, Taman Soga, Batu Pahat, Johor 83000, Malaysia
| | - Y A Tan
- Department of Internal Medicine, Hospital Queen Elizabeth, Kota Kinabalu, Sabah 88200, Malaysia
| | - Y K Chia
- Neurology Unit, Department of Internal Medicine, Hospital Queen Elizabeth, Kota Kinabalu, Sabah 88200, Malaysia
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Abstract
Abstract
A method for the determination of hydrocarbons (HCs) in crude palm kernel oil (CPKO) is described. HCs are extracted from CPKO by passing through a silica gel column by using n-hexane as the eluting agent. The eluate is collected for analysis. Identification and confirmation of the HCs in the eluate are performed with the aid of a gas chromatograph equipped with a mass selective detector, and the HCs in CPKO are quantitated by comparison of peak areas with reference to an external standard, eicosane (C20H42). Recoveries and coefficients of variation for 5 samples of oil spiked with 1 - 300 μg/g eicosane were 70.0-86.6% and 3.5-13.2%, respectively. The method was used for the analysis of CPKO suspected of being contaminated with mineral oil.
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Affiliation(s)
- Yew Ai Tan
- Palm Oil Research Institute of Malaysia, No. 6 Persiaran Institusi, Bandar Baru, Bangi, 43650 Kajang, Selangor, Darul Ehsan, Malaysia
| | - Ainie Kuntom
- Palm Oil Research Institute of Malaysia, No. 6 Persiaran Institusi, Bandar Baru, Bangi, 43650 Kajang, Selangor, Darul Ehsan, Malaysia
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12
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Abstract
Abstract
The sources of hydrocarbons in crude palm kernel oil were investigated by a series of laboratory-controlled oil extractions of kernels of varying quality. Site examinations of palm kernel-crushing plants were also conducted to determine possible sources of hydrocarbon contamination of palm kernels throughout the process of kernel extraction. Parallel to these studies, a random survey of crude palm kernel oil (CPKO) produced by different kernel crushers was also carried out to determine the range of hydrocarbon concentrations in locally produced CPKO. This study showed that hydrocarbons can be picked up from sources such as glassware, extracting apparatus, and plastic containers and stoppers. Extraction of oil from low-quality kernels that were both moldy and rancid, broken kernels, and kernels plus added shells also resulted in a higher hydrocarbon level in the final CPKO. Overheating and cooking of the kernels before extraction also contributed to the overall hydrocarbon content. The random survey of hydrocarbon level showed a range of 0.6–7.1 ppm.
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Affiliation(s)
- Yew Ai Tan
- Palm Oil Research Institute of Malaysia No. 6, Persiaran Institusi, Bandar Baru Bangi 43650 Kajang, Selangor, Darul Ehsan, Malaysia
| | - Ainte Kuntom
- Palm Oil Research Institute of Malaysia No. 6, Persiaran Institusi, Bandar Baru Bangi 43650 Kajang, Selangor, Darul Ehsan, Malaysia
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Che Idris CA, Karupaiah T, Sundram K, Tan YA, Balasundram N, Leow SS, Nasruddin NS, Sambanthamurthi R. Oil palm phenolics and vitamin E reduce atherosclerosis in rabbits. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.01.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Affiliation(s)
- Yew Ai Tan
- Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, Kajang, Selangor, Malaysia
| | - Kum Wan Low
- Spektrum Saujana (M) Sdn Bhd, Petaling Jaya, Selangor, Malaysia
| | | | - Kum Sang Low
- Spektrum Saujana (M) Sdn Bhd, Petaling Jaya, Selangor, Malaysia
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Neo YP, Ariffin A, Tan CP, Tan YA. Determination of oil palm fruit phenolic compounds and their antioxidant activities using spectrophotometric methods. Int J Food Sci Technol 2008. [DOI: 10.1111/j.1365-2621.2008.01717.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Four methods were developed for the analysis of fluroxypyr in soil samples from oil palm plantations. The first method involved the extraction of the herbicide with 0.05 M NaOH in methanol followed by purification using acid base partition. The concentrated material was subjected to derivatization and then cleaning process using a florisil column and finally analyzed by gas chromatography (GC) equipped with electron capture detector (ECD). By this method, the recovery of fluroxypyr from the spiked soil ranged from 70 to 104% with the minimum detection limit at 5 microg/kg. The second method involved solid liquid extraction of fluroxypyr using a horizontal shaker followed by quantification using high performance liquid chromatography (HPLC) equipped with UV detector. The recovery of fluroxypyr using this method, ranged from 80 to 120% when the soil was spiked with fluroxypyr at 0.1-0.2 microg/g soil. In the third method, the recovery of fluroxypyr was determined by solid liquid extraction using an ultrasonic bath. The recovery of fluroxypyr at spiking levels of 4-50 microg/L ranged from 88 to 98% with relative standard deviations of 3.0-5.8% with a minimum detection limit of 4 microg/kg. In the fourth method, fluroxypyr was extracted using the solid liquid extraction method followed by the cleaning up step with OASIS HLB (polyvinyl dibenzene). The recovery of fluroxypyr was between 91 and 95% with relative standard deviations of 4.2-6.2%, respectively. The limit of detection in method 4 was further improved to 1 pg/kg. When the weight of soil used was increased 4 fold, the recovery of fluroxypyr at spiking level of 1-50 microg/kg ranged from 82-107% with relative standard deviations of 0.5-4.7%.
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Affiliation(s)
- M Halimah
- Malaysia Palm Oil Board, Persiaran Institusi, Bandar Baru Bangi, Kajang, Selangor, Malaysia
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Abstract
Improved methods for extraction and clean up of fluroxypyr residue in water have been established. Two methods of fluroxypyr extraction were used, namely, Direct Measurement of fluroxypyr and Concentration of fluroxypyr onto A Solid Phase Extraction (SPE) Adsorbent, followed by elution with solvent before determination of fluroxypyr. The recovery for Direct Measurement of fluroxypyr in water containing 8-100 microg L(-1), ranged from 86 to 110% with relative standard deviation of 0.7 to 2.15%. For the second method, three types of SPE were used, viz. C18, C18 end-capped and polyvinyl dibenzene (ISOLUTE ENV+). The procedure involved concentrating the analyte from fluroxypyr-spiked water at pH 3, followed by elution of the analyte with 4 mL of acentonitrile. The recovery of fluroxypyr from the spiked sample at 1 to 50 microg L(-1) after eluting through either C18 or C18 end-capped ranged from 40-64% (with relative standard deviation of 0.7 to 2.15) and 41-65% (with standard deviation of 1.52 to 11.9). The use of ISOLUTE ENV+, gave better results than the C18, C18 end-capped or the Direct Measurement Methods. The recovery and standard deviation of fluroxypyr from spiked water using ISOLUTE ENV+ ranged from 91-102% and 2.5 to 5.3, respectively.
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Affiliation(s)
- M Halimah
- Malaysian Palm Oil Board, Kuala Lumpur, Malaysia
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Su MS, Wang SJ, Chiang H, Wang JS, Tan YA, Fuh JL, Liu HC. Creutzfeldt-Jakob disease. Report of a case of the panencephalopathic type and experiences of a teaching hospital in Taiwan. Eur Neurol 1993; 33:241-3. [PMID: 8467846 DOI: 10.1159/000116945] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We report a case of the unusual panencephalopathic type of Creutzfeldt-Jakob disease (CJD) in Taiwan. This 59-year-old woman presented in 1983 with typical clinical manifestations of CJD and died 16 months later. Postmortem examination revealed severe neuronal loss, spongiosis and gliosis extensively in cerebral cortex and striatum as well as in the white matter. We also report 6 other CJD patients seen from 1983 to 1991 at Veterans General Hospital-Taipei.
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Affiliation(s)
- M S Su
- Neurological Institute, Veterans General Hospital-Taipei, Taiwan, Republic of China
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Sng EH, Tan YA, Teo HK. Autoclavable plastic dip-slide. J Clin Pathol 1976; 29:862. [PMID: 789410 PMCID: PMC476195 DOI: 10.1136/jcp.29.9.862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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