Browse publications by year: 1998

  1. Jais AM, Matori MF, Kittakoop P, Sowanborirux K
    Gen. Pharmacol., 1998 Apr;30(4):561-3.
    PMID: 9522175
    1. Fatty acid profiles in the external mucus extract and roe of Channa striatus were determined using gas chromatography (GC). 2. The mucus samples were collected by inducing hypothermic stress (-20 degrees C) for about 1 hr, and the roe were collected from gravid females at night soon after they liberated their eggs in a spawning program. 3. All mucus and roe samples were freeze-dried, except a part of roe which was not. 4. The mucus extract contained unsaturated fatty acid (oleic acid, C18:1 and linoleic acid, C18:2) as a major component, 21.25% and 22.47% of total lipid. 5. For the freeze- and nonfreeze-dried roe, the major components of fatty acid were somewhat similar to the mucus but with higher percentages: 58.56%, 26.08% and 45.76%, 20.94%. Interestingly, the nonfreeze-dried roe contained a large proportion of arachidic acid, C20:0 (22.16%), which was totally absent in the freeze-dried roe samples. 6. This profiling of the fatty acid mucus extract and roe is useful in strengthening the earlier claims that haruan possesses a potential remedy for wound healing (Mat Jais et al., 1994). Therefore, we are discussing the possibility of getting an optimum amount of the essential fatty acid for wound healing from various other parts of the fish without sacrificing the fish.
    MeSH terms: Animals; Chromatography, Gas; Esterification; Fatty Acids/analysis*; Female; Fishes; Mucus/chemistry*; Ovum/chemistry*; Wound Healing/physiology*
  2. Hauswald M, Ong G, Tandberg D, Omar Z
    Acad Emerg Med, 1998 Mar;5(3):214-9.
    PMID: 9523928
    OBJECTIVE: To examine the effect of emergency immobilization on neurologic outcome of patients who have blunt traumatic spinal injuries.

    METHODS: A 5-year retrospective chart review was carried out at 2 university hospitals. All patients with acute blunt traumatic spinal or spinal cord injuries transported directly from the injury site to the hospital were entered. None of the 120 patients seen at the University of Malaya had spinal immobilization during transport, whereas all 334 patients seen at the University of New Mexico did. The 2 hospitals were comparable in physician training and clinical resources. Neurologic injuries were assigned to 2 categories, disabling or not disabling, by 2 physicians acting independently and blinded to the hospital of origin. Data were analyzed using multivariate logistic regression, with hospital location, patient age, gender, anatomic level of injury, and injury mechanism serving as explanatory variables.

    RESULTS: There was less neurologic disability in the unimmobilized Malaysian patients (OR 2.03; 95% CI 1.03-3.99; p = 0.04). This corresponds to a <2% chance that immobilization has any beneficial effect. Results were similar when the analysis was limited to patients with cervical injuries (OR 1.52; 95% CI 0.64-3.62; p = 0.34).

    CONCLUSION: Out-of-hospital immobilization has little or no effect on neurologic outcome in patients with blunt spinal injuries.

    MeSH terms: Adult; Emergency Medical Services*; Female; Humans; Immobilization*; Male; Retrospective Studies; Transportation of Patients; Logistic Models; Treatment Outcome
  3. Deshmukh RG, Thevarajan K, Kok CS, Sivapathasundaram N, George SV
    J Arthroplasty, 1998 Feb;13(2):197-9.
    PMID: 9526214
    Revision arthroplasty of the hip is often complicated by infection, bone loss, and perioperative fracture of the femur. A simple, inexpensive spacer that keeps tissue planes intact and prevents soft tissue contracture during the interoperative period of a 2-stage revision is described. This can provide intramedullary support to a fractured or weak femur and enable local antibiotic delivery, as well as permit limited mobilization of the patient. It can be easily fabricated during surgery using universally available materials and can be tailored for specific requirements. Such a spacer was used in 5 cases. The experience is presented, and the technique and pitfalls are discussed.
    MeSH terms: Bone Cements*; Bone Nails; Humans; Arthroplasty, Replacement, Hip/instrumentation*
  4. Abdullah BJ, Mohd Yusof MY, Khoo BH
    Clin Radiol, 1998 Mar;53(3):212-4.
    PMID: 9528873
    Nosocomial infections are posing an increasingly serious problem in the hospital setting. With the increasing use of ultrasound in medical diagnosis, there is the potential for transmission of nosocomial infections via the ultrasound transducer and coupling gel. We evaluated the use of different membranes (three types of commercially available household cling film, condom, surgical glove and Opsite) applied over the ultrasound probe to determine if these were safe, convenient, cost-effective and did not impair the performance parameters of the ultrasound probe. None of the membranes impaired the physical scanning parameters using a Multi-Purpose Tissue/Cyst Phantom. The cling film was ideal for general use in terms of cost and convenience as well as safety. For sterile use the Opsite was better overall compared to the surgical glove, though it costs significantly more. The condom and surgical glove, though safe, were not very convenient to use for scanning.
    MeSH terms: Cross Infection/prevention & control*; Cross Infection/transmission*; Equipment Contamination*; Gels; Humans; Transducers; Ultrasonography/instrumentation*; Phantoms, Imaging
  5. Telemed Virtual Real, 1998 May;3(5):57.
    PMID: 10178828
    MeSH terms: Great Britain; Humans; International Cooperation; Malaysia; Medical Record Linkage/methods*; United States; Telemedicine*
  6. Barloy F, Lecadet MM, Delécluse A
    Curr Microbiol, 1998 Apr;36(4):232-7.
    PMID: 9504991
    The presence of two cry-like genes first identified in Clostridium bifermentans subsp. malaysia CH18 was investigated in Clostridium species including 12 subspecies of Clostridium bifermentans, 13 strains of other members of Clostridia genus, and 13 different subspecies of Bacillus thuringiensis. Oligonucleotides designed to amplify the two toxin genes, cmb71 and cmb72, were used. We found that these genes are present in 80% of the Clostridium bifermentans strains tested and in 8% of the other Clostridium and Bacillus thuringiensis strains.
    MeSH terms: Bacillus thuringiensis/genetics*; Bacterial Toxins/genetics*; Clostridium/genetics*; Genes, Bacterial/genetics*; Polymerase Chain Reaction; DNA Primers
  7. Wood E, Cheong I, Lee C
    Int J Clin Pract, 1998 Jan-Feb;52(1):23-6.
    PMID: 9536563
    A retrospective study of 144 adults with HIV infection was conducted to investigate the prevalence of upper and lower respiratory tract infections (URTIs and LRTIs). The patients were divided into two groups: those with acquired HIV through intravenous drug abuse (IVDA), and those who had acquired HIV through 'other' risk behaviours. LRTIs were more prevalent than URTIs overall, and LRTIs were significantly more common (p < 0.001) in IVDAs than in the other-risk group. Tuberculosis (40%) and bacterial pneumonias (33%) comprised the majority of LRTIs among IVDAs, while Pneumocystis carinii pneumonia (40%) was the commonest LRTI in the other-risk group. Analysis of CD4 T-lymphocyte counts indicated that HIV-seropositive IVDAs are at greater risk of developing chest infections at higher CD4 counts than other-risk patients. The IVDAs were also found to have a much higher rate of co-infection with hepatitis C and B, which may be a factor accelerating the progression from HIV infection to AIDS. The mean time averaged for the two groups from known seroconversion to development of respiratory tract infection is only 1.37 years, which suggests HIV-infected patients are presenting late for treatment in Malaysia.
    MeSH terms: Adult; Female; HIV Seropositivity/complications*; HIV Seropositivity/epidemiology; Humans; Malaysia/epidemiology; Male; Respiratory Tract Infections/complications*; Respiratory Tract Infections/epidemiology*; Retrospective Studies; Risk Factors; Prevalence; AIDS-Related Opportunistic Infections/complications*; CD4 Lymphocyte Count
  8. Indudharan R, Win MN, Noor AR
    J Laryngol Otol, 1998 Jan;112(1):81-2.
    PMID: 9538454
    Organophosphorous poisoning causing isolated laryngeal paralysis has only been rarely reported before. We describe a case of difficult extubation in a patient with organophosphorous poisoning, the cause of which was found to be bilateral vocal fold palsy. This is a type of intermediate paralysis that recovers with time. Such a condition should be thought of as a cause of dyspnoea or difficult extubation in patients with organophosphorous poisoning.
    MeSH terms: Aged; Atropine/therapeutic use; Female; Humans; Pralidoxime Compounds/therapeutic use; Vagus Nerve/drug effects; Vocal Cord Paralysis/chemically induced*; Vocal Cord Paralysis/drug therapy; Organophosphate Poisoning*
  9. Islam N, Kazmi F, Chusney GD, Mattock MB, Zaini A, Pickup JC
    Diabetes Care, 1998 Mar;21(3):385-8.
    PMID: 9540020
    OBJECTIVE: To investigate whether microalbuminuria is associated with markers of the acute-phase response in NIDDM and whether there are ethnic differences in this association among the three main racial groups in Malaysia.

    RESEARCH DESIGN AND METHODS: NIDDM patients of Chinese, Indian, and Malay origin attending a diabetic clinic in Kuala Lumpur, Malaysia, were matched for age, sex, diabetes duration, and glycemic control (n = 34 in each group). Urinary albumin-to-creatinine ratio was measured in an early morning urine sample. Biochemical measurements included markers of the acute-phase response: serum sialic acid, triglyceride, and (lowered) HDL cholesterol.

    RESULTS: The frequency of microalbuminuria did not differ among the Chinese, Indian, and Malay patients (44, 41, and 47%, respectively). In Chinese patients, those with microalbuminuria had evidence of an augmented acute-phase response, with higher serum sialic acid and triglyceride and lower HDL cholesterol levels; and urinary albumin-to-creatinine ratio was correlated with serum sialic acid and triglyceride. The acute-phase response markers were not different in Indians, with microalbuminuria being high in even the normoalbuminuric Indians; only the mean arterial blood pressure was correlated with urinary albumin-to-creatinine ratio in the Indians. Malay NIDDM subjects had an association of microalbuminuria with acute-phase markers, but this was weaker than in the Chinese subjects.

    CONCLUSIONS: Microalbuminuria is associated with an acute-phase response in Chinese NIDDM patients in Malaysia, as previously found in Caucasian NIDDM subjects. Elevated urinary albumin excretion has different correlates in other racial groups, such as those originating from the Indian subcontinent. The acute-phase response may have an etiological role in microalbuminuria.

    MeSH terms: Acute-Phase Reaction/blood; Acute-Phase Reaction/physiopathology; Acute-Phase Reaction/urine; Adult; Aged; Albuminuria/blood; Albuminuria/ethnology*; Albuminuria/urine; Blood Pressure/physiology; China/ethnology; Creatinine/urine; Data Interpretation, Statistical; Diabetes Mellitus, Type 2/blood; Diabetes Mellitus, Type 2/ethnology*; Diabetes Mellitus, Type 2/urine; Female; Hemoglobin A, Glycosylated/metabolism; Humans; India/ethnology; Cholesterol, HDL/blood; Malaysia/epidemiology; Male; Middle Aged; Time Factors; Triglycerides/blood; Biomarkers/blood; Biomarkers/urine; Body Mass Index; Case-Control Studies; N-Acetylneuraminic Acid/blood
  10. Malik AS, Ismail A, Pennie RA, Naidu JV
    J Trop Pediatr, 1998 02;44(1):10-4.
    PMID: 9538599 DOI: 10.1093/tropej/44.1.10
    Streptococcus pneumoniae (S. pneumoniae) is the most common bacterial cause of pneumonia, meningitis, and otitis media, with the highest incidence among young children and the elderly. S. pneumoniae was once routinely susceptible to penicillin, but since the mid-1980s the incidence of resistance to penicillin and other antimicrobial agents has been increasing all over the world. To optimize empirical regimens and initial therapy for S. pneumoniae infections, clinical healthcare providers must be informed about the prevalence and pattern of drug resistance among the isolates in their communities. No such data are available for the Malaysian population. Therefore, this study was designed to determine the antibiotic susceptibility pattern of S. pneumoniae among colonized pre-school children in Kota Bharu, Malaysia. Pharyngeal swabs were collected from children 1 month to 6 years of age. S. pneumoniae isolates were identified according to the standard and tested for penicillin resistance with a 1-microgram oxacillin disk by the Kirby-Bauer disk diffusion methods. Of 355 nasopharyngeal specimens obtained from kindergarten students, in-patients and pediatric clinics over a period of 1 year, S. pneumoniae was isolated from 36 (10 per cent). All isolates, except one, were susceptible to penicillin. The resistant isolates was susceptible to erythromycin, chloramphenicol and cephalosporins.
    Study site: kindergarten, schools, pediatric outpatients clinics, and in-patient wards of Hospital Universiti Sains Malaysia (HUSM), Kelantan, Malaysia.
    MeSH terms: Child, Preschool; Cross-Sectional Studies; Female; Hospitals, University; Humans; Infant; Malaysia/epidemiology; Male; Outpatient Clinics, Hospital; Pediatrics; Penicillin Resistance*; Pneumococcal Infections/drug therapy; Pneumococcal Infections/epidemiology; Pneumococcal Infections/prevention & control*; Streptococcus pneumoniae/drug effects*; Prevalence; Drug Resistance, Multiple*
  11. Mok SL, Yoganathan K, Lim TM, Kam TS
    J Nat Prod, 1998 Mar;61(3):328-32.
    PMID: 9544563
    Intravenous injection of the aspidofractinine alkaloid, kopsingine (1, 0.2-10.0 mg/kg) from Kopsia teoi, produced dose-related decreases in the mean arterial blood pressure and heart rate in anesthetized spontaneously hypertensive rats, which were similar to those seen in normotensive controls. Minor modifications in the molecular structure of kopsingine, as in kopsaporine (2, the 12-demethoxy derivative of kopsingine) and 14,15-dihydrokopsingine (4), did not significantly alter the hypotensive responses, whereas a more drastic change in the structure, as in the heptacyclic kopsidine A (3) and the 3-to-17 oxo-bridged compound 5, resulted in an increase in blood pressure. The antihypertensive effects of kopsingine (1) and its congeners (2 and 4) along with the pressor effects produced by the heptacyclic oxo-bridged compounds (5 and 3) could be ascribed to central as well as peripheral actions.
    MeSH terms: Alkaloids/isolation & purification*; Alkaloids/pharmacology; Animals; Antihypertensive Agents/isolation & purification*; Antihypertensive Agents/pharmacology; Asia, Southeastern; Blood Pressure/drug effects; Heart Rate/drug effects; Injections, Intravenous; Male; Plants, Medicinal/chemistry*; Rats, Inbred SHR; Rats, Inbred WKY; Rats
  12. Hughes K, Choo M, Kuperan P, Ong CN, Aw TC
    Atherosclerosis, 1998 Jan;136(1):25-31.
    PMID: 9544728
    Cardiovascular risk factors were compared between 126 people with non-insulin-dependent diabetes mellitus (NIDDM) and 530 non-diabetics (controls), in a random sample of people (Chinese, Malays, and Asian Indians) aged 40-69 years from the general population of Singapore. Data were adjusted for age and ethnicity. For both genders, people with NIDDM had higher mean body mass indices, waist-hip ratios and abdominal diameters. They also had a higher prevalence of hypertension, higher mean levels of fasting serum triglyceride, slightly lower mean levels of serum high-density-lipoprotein cholesterol, and higher mean levels of plasma plasminogen activator inhibitor-1 and tissue plasminogen activator (antigen). These factors are components of syndrome X (metabolic syndrome) and increase the risk of atherosclerosis and thrombosis. In contrast, there were no important differences for cigarette smoking, serum total and low-density-lipoprotein cholesterol, serum apolipoproteins A1 and B, plasma factor VIIc and plasma prothrombin fragment 1 + 2. Females with NIDDM, but not males, had a higher mean serum fibrinogen level than non-diabetics, which could explain why NIDDM has a greater cardiovascular effect in females than males. Serum lipoprotein(a) concentrations were lower in people with NIDDM. Mean levels of serum ferritin, a pro-oxidant, were higher in people with NIDDM than controls, but there were no important differences for plasma vitamins A, C and E, and serum selenium, which are anti-oxidants.
    MeSH terms: Arteriosclerosis/epidemiology; Cardiovascular Diseases/epidemiology*; China/ethnology; Diabetes Mellitus, Type 2/complications*; Diabetic Angiopathies/epidemiology*; Female; Humans; India/ethnology; Malaysia/ethnology; Male; Population Surveillance; Prognosis; Risk Factors; Singapore; Thrombosis/epidemiology; Body Mass Index; Prevalence
  13. Shuib AS, Chua CT, Hashim OH
    Nephron, 1998;78(3):290-5.
    PMID: 9546689
    Sera of IgA nephropathy (IgAN) patients and normal subjects were analysed by two-dimensional (2-D) gel electrophoresis. Densitometric analysis of the 2-D gels of IgAN patients and normal subjects revealed that their protein maps were comparable. There was no shift of pI values in the major alpha-heavy chain spots. However, the volume of the alpha-heavy chain bands were differently distributed. Distribution was significantly lower at the anionic region in IgAN patients (mean anionic:cationic ratio of 1.184 +/- 0.311) as compared to normal healthy controls (mean anionic:cationic ratio of 2.139 +/- 0.538). Our data are in support of the previously reported findings that IgA1 of IgAN patients were lacking in sialic acid residues.
    MeSH terms: Adult; Cations; Densitometry/methods; Glomerulonephritis, IGA/blood*; Humans; Immunoglobulin alpha-Chains/blood*; Immunoglobulin Heavy Chains/blood*; Middle Aged; Blotting, Western; Electrophoresis, Gel, Two-Dimensional/methods; Lectins
  14. Foo LC, Mahmud N, Satgunasingam N
    Am J Public Health, 1998 Apr;88(4):680-1.
    PMID: 9551019
    MeSH terms: Child; Humans; Iodine/administration & dosage*; Iodine/deficiency*; Iodine/urine; Malaysia; Nutritional Requirements; Rural Health*; Thyroid Hormones/blood*; Water Supply*; Sodium Chloride, Dietary*
  15. Ling BC
    J Prosthet Dent, 1998 Mar;79(3):363-4.
    PMID: 9553898
    This procedure is easy to use and is cost-effective because it uses equipment that exist in any office or institution. The material used, transparency film for use with plain paper copier, is less expensive than either photographic slide film or normal slide films. Moreover, the transparency sheet can be used again for photocopying until the sheet is fully used up. There is no added cost of development of film, or is it necessary to wait for the whole roll of film to be used before the label can be retrieved and used. The background of the label is clear and only the black images of the characters of the label can be clearly seen. The effect of the transparency film, photocopy ink, and adhesive glue is not known. But no adverse effects have been noted. Microlabels have advantages over conventional labels with characters in font size 8 to 12, because more information, such as the full name of the patient, sex, country of origin, and national identification number can be incorporated. With more detailed information, quick identification of a deceased person can be made. Microlabels with a clear background will have minimal esthetic impact on the patient. The disadvantages of the technique is that it may not withstand a fire. In situations where the deceased body is badly burned, the denture and its identification strip may be burned, too. However, this risk can be minimized by placing the strip in the most posterior part of the denture-palatal in the maxillary denture and distal lingual in the mandibular denture. For testing of durability, dentures with the labels were placed in water for up to 4 months. The labels showed no sign of fading or deterioration.
    MeSH terms: Copying Processes; Denture Identification Marking*; Humans; Microcomputers; Paper
  16. Raman R, Jalaluddin MA
    Thorac Cardiovasc Surg, 1998 Feb;46(1):43-4.
    PMID: 9554049
    MeSH terms: Anastomosis, Surgical; Humans; Preoperative Care; Trachea/surgery*; Tracheal Stenosis/surgery*
  17. Toufeeq Khan TF, Hayat FZ, Muniandy S
    Singapore Med J, 1998 Jan;39(1):25-6.
    PMID: 9557100
    Anomalous pancreatico-biliary junction (APBJ) is commonly associated with cystic dilatation of the bile ducts but recently, several cases without the cystic dilatation have been reported. We treated a young female patient with intractable back and epigastric pain of three months duration. The spine was normal on magnetic resonance imaging (MRI), but several lymph nodes were seen around the coeliac axis. An APBJ, a non-cystic biliary system, non-filling of the gallbladder and an irregular right margin of the bile duct were evident on endoscopic retrograde pancreatography (ERCP), which was highly suggestive of gallbladder (GB) malignancy. At surgery, the GB was hard with local infiltration of the bile duct. Numerous large para-aortic and supraduodenal lymph nodes were present and only a biopsy was possible. Details of the case are presented and the growing etiological importance of an APBJ, especially without cystic biliary dilatation in gallbladder carcinogenesis is discussed.
    MeSH terms: Adenocarcinoma/diagnosis*; Adult; Cholangiopancreatography, Endoscopic Retrograde; Common Bile Duct/abnormalities*; Female; Gallbladder Neoplasms/diagnosis*; Humans; Magnetic Resonance Imaging; Pancreatic Ducts/abnormalities*
  18. Kyaw K
    Singapore Med J, 1998 Jan;39(1):30-1.
    PMID: 9557102
    This is a case report of an 11-year-old boy with left mesocolic hernia. This condition is very similar to peritoneal encapsulation and a literature review of both conditions is done. Confusion among authors in naming them accordingly is addressed.
    MeSH terms: Child; Hernia/diagnosis*; Hernia/etiology; Humans; Male; Mesocolon*; Terminology as Topic*
  19. Cheah JS, Tay G
    Singapore Med J, 1998 Jan;39(1):42-4.
    PMID: 9557106
    During the Japanese Occupation of Singapore and Malaya (1941-1945), Singapore was renamed Syonan (or Syonanto) and Malaya was called Malai (or Marai; Marei). On 27 April 2603 (1943) the Japanese Military Administration established. The Marai Ika Daigaku (Syonan Medical College) at the Tan Tock Seng Hospital (Hakuai Byoin), Syonan. The Medical College shifted to the General Hospital, Malacca in February 2604 (1944) where it functioned till the end of the Japanese Occupation in September 2605 (1945).
    MeSH terms: Humans; Japan; Malaysia; Schools, Medical*; Singapore; Warfare; History, 20th Century
  20. Gendeh BS, Gibb AG, Aziz NS, Kong N, Zahir ZM
    Otolaryngol Head Neck Surg, 1998 Apr;118(4):551-8.
    PMID: 9560111
    A prospective study was undertaken in 16 patients with chronic renal failure on continuous ambulatory peritoneal dialysis, with 22 episodes of peritonitis treated with vancomycin, a known ototoxic agent. Twelve patients had one episode each, and four had recurrent peritonitis. Each treatment course consisted of two infusions of vancomycin (30 mg/kg body weight) in 2 L of peritoneal dialysate administered at 6-day intervals. Serum vancomycin analyzed by enzyme immunoassay showed a mean trough level of 11.00 microg/ml on day 6 and mean serum levels of 33.8 and 38.6 microg/ml about 12 hours after administration on days 1 and 7, respectively. Similar levels, well within the therapeutic range, were encountered with repeated vancomycin therapy for recurrent episodes of peritonitis, suggesting that no changes occurred in the pharmacokinetic profile of the drug. Pure-tone audiometry, electronystagmography, and clinical assessment performed during each course of treatment showed no evidence of ototoxicity even on repeated courses of vancomycin therapy. The results suggest that vancomycin therapy when given in appropriate concentrations as a single therapeutic agent is both effective and safe. We believe, however, that vancomycin administered in combination with an aminoglycoside may produce ototoxic effects that may be greatly aggravated, possibly because of synergism.
    MeSH terms: Adult; Aged; Anti-Bacterial Agents/administration & dosage; Anti-Bacterial Agents/adverse effects*; Anti-Bacterial Agents/pharmacokinetics; Audiometry, Pure-Tone; Auditory Threshold/drug effects; Caloric Tests; Dose-Response Relationship, Drug; Drug Administration Schedule; Female; Hearing Loss, Sensorineural/blood; Hearing Loss, Sensorineural/chemically induced*; Hearing Loss, Sensorineural/diagnosis; Humans; Male; Metabolic Clearance Rate/physiology; Middle Aged; Peritoneal Dialysis, Continuous Ambulatory*; Peritonitis/blood; Peritonitis/drug therapy*; Recurrence; Vancomycin/administration & dosage; Vancomycin/adverse effects*; Vancomycin/pharmacokinetics
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