Displaying publications 1 - 20 of 104 in total

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  1. Jaganathan SK, Vellayappan MV, Narasimhan G, Supriyanto E, Octorina Dewi DE, Narayanan AL, et al.
    World J Gastroenterol, 2014 Dec 7;20(45):17029-36.
    PMID: 25493015 DOI: 10.3748/wjg.v20.i45.17029
    Colon cancer arises due to the conversion of precancerous polyps (benign) found in the inner lining of the colon. Prevention is better than cure, and this is very true with respect to colon cancer. Various epidemiologic studies have linked colorectal cancer with food intake. Apple and berry juices are widely consumed among various ethnicities because of their nutritious values. In this review article, chemopreventive effects of these fruit juices against colon cancer are discussed. Studies dealing with bioavailability, in vitro and in vivo effects of apple and berry juices are emphasized in this article. A thorough literature survey indicated that various phenolic phytochemicals present in these fruit juices have the innate potential to inhibit colon cancer cell lines. This review proposes the need for more preclinical evidence for the effects of fruit juices against different colon cancer cells, and also strives to facilitate clinical studies using these juices in humans in large trials. The conclusion of the review is that these apple and berry juices will be possible candidates in the campaign against colon cancer.
  2. Aizat Sabri I, Yusof MR, Jagwani AV, Fahmy O, Lee CK, Mg-Khairul Asri MA, et al.
    Urologiia, 2022 Dec.
    PMID: 36625624
    We present a rare case of leiomyoma of the urinary bladder that was diagnosed during pregnancy. The case of a 29-year-old woman primigravida at 13 weeks of pregnancy who presented with 6 months history of abdominal swelling which was gradually increasing in size. Computed tomography done revealed a large heterogenous mass(enhancing) with an area of non-enhancing (necrosis) suggestive of malignant ovarian tumor. The histological findings of the surgical specimen confirmed a leiomyoma of the urinary bladder. The clinical presentation, imaging findings, and management of this relatively rare benign tumor are discussed in this case report.
  3. Mohd Isa MF, Mohamed Ashraf Md MAM, Yusof MR, Faiz N G, Siti Rahmah H I Merican SRHIM
    Urologiia, 2023 May.
    PMID: 37401716
    For the past two decades urethral stenting became more popular for treatment of urethral stricture. However, urethral stents still not widely used in view of good outcome from urethroplasty surgery. The MemokathTM stent is the most popular in this field. It is manufactured from a biocompatible alloy of nickel and titanium. Most of the studies have been limited to single stent insertion, and no studies done for double stents insertion. An 81-year-old man with history of multiple anterior urethral strictures since 2013. He underwent internal urethrotomy in the same year but failed and was on urinary catheter since then. The MemokathTM 044TW was the option due to patient has multiple comorbidities. The micturating cystourethrogram (MCUG) and ascending urethrogram showed multiple anterior urethral strictures. He underwent direct visual internal urethrotomy and two MemokathTM stents inserted in the whole length of urethral. However, one year after procedure, he had recurrent lower urinary tract symptoms and ultimately developed acute urinary retention (AUR). Patients stents were removed endoscopically. During endoscopic removal, he had encrustation of both stents that causing obstructive symptoms. He is under our follow-up with no recurrent urinary retention or urosepsis with satisfactory uroflowmetry. Stent encrustation is known to be a common late complication of urethral stents. Stent encrustation should be suspected if patient comes with obstructive symptoms. Endoscopic is shown to be the best method to detect the cause of obstructed stent.
  4. Yusof MR, Mohd Sharin MF, Aizat Sabri I, Jagwani AV, Lee FY, Ahmad Zaidi AI, et al.
    Urologiia, 2023 May.
    PMID: 37401715
    Urethral catheterization is a common procedure, but it is associated with a number of complications. Iatrogenic hypospadias can rarely occur. There is a limited literature dedicated to this condition. We report a young patient with COVID-19 with iatrogenic hypospadias of grade 3. He was undergone to a two-stage procedure with acceptable outcome. Surgical repair should be offered and performed for young patients to ensure good function with acceptable penile appearance. A surgical treatment will improve psychological, sexual and social outcomes.
  5. Lim KT, Hanifah YA, Mohd Yusof MY, Thong KL
    Trop Biomed, 2012 Jun;29(2):212-9.
    PMID: 22735842 MyJurnal
    Staphylococcus aureus is a persistent human pathogen responsible for a variety of infections ranging from soft-tissue infections to bacteremia. It produces a variety of virulence factors which are responsible for specific acute staphylococcal toxaemia syndromes. The objective of this study was to determine the prevalence of a repertoire of toxin genes among Malaysian MRSA strains and their genetic diversity by PCR-RFLP of coa gene. One hundred eighty-eight strains (2003, 2004, 2007 and 2008) of methicillin-resistant S. aureus (MRSA) were screened for 20 genes encoding for extracellular virulence determinant (sea, seb, sec, sed, see, seg, seh, sei, sej, tst, eta, etb, etd) and adhesins (cna, etb, fnbA, fnbB, hlg, ica, sdrE). The genetic relatedness of these strains was determined by PCR-RFLP of coa gene and agr grouping. Majority of the strains were tested positive for efb and fnbA (96% each), ica (78%) and hlg (59%) genes. A total of 101 strains were positive for at least one type of staphylococcal enterotoxin genes with sea being the predominant. Genes for seb, sed, see, seh, sej, eta and etb were not detected in any of the MRSA strains. The prevalence of sea, sec and ica among strains isolated in 2008 was increased significantly (p< 0.05) compared to 2003. Most of the strains were of agr type I (97.5%) followed by agr type II (1.2%) and agr type III (0.6%). All sea, sei and tst gene-positive strains were of agr type I. The only etd positive strain was agr type III. PCR-RFLP of coa produced 47 different patterns. The number of strains with virulence factors (sea, sec and ica) had increased over the years. No direct correlation between PCR-RFLP- coa profiles and virulotypes was observed.
  6. Ibrahim N, Wajidi MF, Yusof MY, Tay ST
    Trop Biomed, 2011 Dec;28(3):668-71.
    PMID: 22433898 MyJurnal
    The increased frequency of antibiotic resistance is known to be associated with the dissemination of integrons in the Enterobacteriaceae. This study determined the prevalence and type of integrons amongst 160 extended-spectrum beta-lactamase producing enterobacterial isolates kept in our culture collection. Integrons were detected in 98(61.3%) isolates, including 28(62.2%) Escherichia coli, 34(64.2%) Klebsiella spp., 27(61.4%), Enterobacter spp. and 9(50.0%) Citrobacter spp. investigated in this study. Restriction analysis of the integron gene fragments revealed that class I integron was the principal integron detected in 92(57.5%) of our isolates. Class II integron was detected in 6(3.8%) of our isolates, while no class III integron was detected in this study. The high rates of integron prevalence particularly of the class I integron in the E. coli and Klebsiella spp. concur with previous studies in other geographical regions. The higher (≥50%) integron prevalence of Citrobacter and Enterobacter isolates comparing to previous studies suggests the potential of these isolates as sources for dissemination of resistance determinants. The finding in this study serves as a basis for further study on the antibiotic resistance mechanisms of enterobacterial species in this teaching hospital.
  7. Kong BH, Hanifah YA, Yusof MY, Thong KL
    Trop Biomed, 2011 Dec;28(3):563-8.
    PMID: 22433885 MyJurnal
    Acinetobacter baumannii, genomic species 3 and 13TU are being increasingly reported as the most important Acinetobacter species that cause infections in hospitalized patients. These Acinetobacter species are grouped in the Acinetobacter calcoaceticus- Acinetobacter baumannii (Acb) complex. Differentiation of the species in the Acb-complex is limited by phenotypic methods. Therefore, in this study, amplified ribosomal DNA restriction analysis (ARDRA) was applied to confirm the identity A. baumannii strains as well as to differentiate between the subspecies. One hundred and eighty-five strains from Intensive Care Unit, Universiti Malaya Medical Center (UMMC) were successfully identified as A. baumannii by ARDRA. Acinetobacter genomic species 13TU and 15TU were identified in 3 and 1 strains, respectively. ARDRA provides an accurate, rapid and definitive approach towards the identification of the species level in the genus Acinetobacter. This paper reports the first application ARDRA in genospecies identification of Acinetobacter in Malaysia.
  8. Zamasry MS, Hilmi Z, Mohd Yusof MYP, Razali HSA, Nawawi H, Mahmood MS
    Trop Biomed, 2019 Dec 01;36(4):845-849.
    PMID: 33597456
    Infective endocarditis (IE) is a relatively uncommon disease, but has been challenging to diagnose over the years. With the increasing incidence, variety of causative agents and the resistance of microorganisms towards antibiotics, there is still an occurrence of sudden death due to undiagnosed IE. The most common microorganism causing IE is Staphylococcus aureus. However, there is increasing prevalence of other microorganisms causing IE. This case report highlights a case of sudden death due to IE caused by a rare pathogen, Streptococcus constellatus which belongs to the Streptococcus anginosus group (Milleri group). A study noted the crude incidence of IE in 6 world regions ranged between 1.5 and 11.6 cases per 100,000 people. To date, there has been no previous report on sudden death due to IE caused by Streptococcus constellatus in Malaysia, neither in the forensic nor clinical setting. This case report underlined the characteristics and pathological features of this microorganism. The increasing incidence and variety of causative organisms in IE are important public health issues. It is vital for future studies to examine the risk factors of IE related to Streptococcus constellatus, to enhance better understanding, insight and awareness regarding the course of this disease. This in turn may facilitate preventive measures to avoid morbidity and mortality from this condition.
  9. Mohd-Taib FS, Ishak SN, Yusof MA, Azhari NN, Md-Lasim A, Md Nor S, et al.
    Trop Biomed, 2020 Mar 01;37(1):142-154.
    PMID: 33612725
    Leptospirosis is a zoonotic disease caused by bacteria of the genus Leptospira and most often acquired through contact with environments contaminated with leptospires shed in the urine of infected mammals. In urban environment, rodents are well-known as the main carriers of this bacteria, however there were no intensive study on the population structure of these animals, and how it associated with this disease. Hence, we use a case study from an outbreak in a residential area in Selangor, Malaysia, to investigate how community structure of small mammals, associated with the prevalence of Leptospira. One hundred cage traps were placed randomly in and around these houses in five phases with two months interval for a year. Community structures (species, sex, and age) were assigned for each individual, prior to screening for pathogenic Leptospira, using a partial lipL32 gene from the kidney samples. 185 small mammals from four species were captured, Rattus norvegicus (74.5%, N=138), R. rattus (20%, N=37), Tupaia glis (5%, N=9), and Suncus murinus (0.5%, N=1). From this number, 29 individuals were found PCR positive for pathogenic Leptospira (R. norvegicus, N=20; R. rattus, N=6; T. glis, N=2; S. murinus, N=1). The study shows that Leptospira occurrence in the small mammals were significantly correlated to age category and sampling phases, with Spearman Correlation (rs) p=0.02 and p=0.04 respectively. Adult individuals were significantly more prevalent with Leptospira infection, whereby March and June were found to associate with higher Leptospira prevalent among the small mammals, potentially coincide with low rainfall and relative humidity level. This information is important in designing a specific control method for rodents in Leptospira outbreak areas. In addition, intensive sampling and regular cleaning effort were found to significantly reduce the small mammal Leptospira reservoir, thus should be implemented in intervention strategies in the urban environment.
  10. Safiah Mokhtar S, M Vanhoutte P, W S Leung S, Imran Yusof M, Wan Sulaiman WA, Zaharil Mat Saad A, et al.
    Tohoku J. Exp. Med., 2013 11;231(3):217-22.
    PMID: 24225501
    Diabetic endothelial dysfunction is characterized by impaired endothelium-dependent relaxation. In this study, we measured the expression of endothelial nitric oxide synthase (eNOS), cyclooxygenase-1 (COX-1), cyclooxygenase-2 (COX-2), prostacyclin synthase (PGIS), and prostacyclin receptor (IP) in subcutaneous arteries of type-2 diabetic and non-diabetic patients. Subcutaneous arteries were dissected from tissues from seven diabetics (4 males and 3 females) and seven non-diabetics (5 males and 2 females) aged between 18 to 65 years, who underwent lower limb surgical procedures. Diabetics had higher fasting blood glucose compared to non-diabetics, but there were no differences in blood pressure, body mass index and age. Patients were excluded if they had uncontrolled hypertension, previous myocardial infarction, coronary heart disease, renal or hepatic failure and tumor. The relative expression levels of eNOS, COX-1, COX-2, PGIS and IP receptor were determined by Western blotting analysis, normalized with the β-actin level. Increased expression of COX-2 was observed in subcutaneous arteries of diabetics compared to non-diabetics, whereas the expression levels of eNOS and PGIS were significantly lower in diabetics. There were no significant differences in expression levels of COX-1 and IP receptor between the two groups. Immunohistochemical study of subcutaneous arteries showed that the intensities of eNOS and PGIS staining were lower in diabetics, with higher COX-2 staining. In conclusion, type-2 diabetes is associated with higher COX-2 expression, but lower eNOS and PGIS expression in subcutaneous arteries. These alterations may lead to impaired endothelium-dependent vasodilatation, and thus these proteins may be potential targets for protection against the microvascular complications of diabetes.
  11. Sam IC, Tariman H, Chan YF, Bador MK, Yusof MY, Hassan H
    Med J Malaysia, 2008 Dec;63(5):429-30.
    PMID: 19803311 MyJurnal
    Varicella-zoster virus (VZV) infections are a particular problem in healthcare settings. A survey of chickenpox was carried out amongst healthcare workers (HCWs) following potential ward exposures. A prior history of chickenpox was given by 61/98 (62.2%). Of 64 HCWs tested for VZV IgG, 10 (15.6%) were seronegative, indicating susceptibility. The sensitivity, specificity, positive predictive value, and negative predictive value of a history of prior chickenpox were 57.4%, 90%, 96.4%, and 31.0%, respectively. VZV screening of HCWs without a history of chickenpox, and vaccination of susceptible HCWs should be undertaken in this hospital.
  12. Zamzuri Z, Yusof M, Hyzan MY
    Med J Malaysia, 2004 Mar;59(1):15-9.
    PMID: 15535330
    This is a prospective study of a series of 26 patients with closed unstable comminuted intra-articular fracture distal end of the radius treated with two different methods of treatment to compare their anatomical and functional results. The external fixation group consisted of 12 patients and internal fixation group consisted of 14 patients. The anatomical and functional assessments were performed at six months and one year. The anatomical results at six months and one year showed that the internal fixation group was effective in maintaining the reduction compared to the external fixation group. The radial height, volar tilt and radial inclination were well maintained. However, the functional results at six months and one year showedno differences between these two types of fixation. The complication rate was higher in external fixation group.
  13. Yusof MI, Yusof AH
    Med J Malaysia, 2004 Dec;59(5):574-7.
    PMID: 15889557
    Staphylococcus aureus infection remains the commonest organism causing musculoskeletal infection and antibiotic is the mainstay of treatment apart from adequate and appropriate surgical intervention. The exact figure of antibiotic resistance in orthopaedic practice is not known but it is expected to be higher than previously reported as the use of antibiotics is rampant. Its sensitivity to various antibiotics differs from one center to another making local surveillance necessary. From 66 patients with musculoskeletal infections studied in our centre, Staphylococcus aureus was cultured in 50-65% of patients, depending on the sample taken. Fifteen percent of this were methicillin resistant Staphylococcus aureus (MRSA). Staphylococcus aureus was found to be sensitive to cloxacillin in 95% of patients' sample. MRSA remained highly sensitive to vancomycin, clindamycin and fucidic acid.
  14. Yusof MS, Mohd Ibrahim H
    Med J Malaysia, 2023 Mar;78(2):250-258.
    PMID: 36988538
    INTRODUCTION: Cleft lip and palate (CL/P) are among the most common congenital abnormalities. The purpose of the present study was to review the literature relating to the quality of life (QoL) in young patients with cleft lip and/or palate (CL/P) and to identify the specific aspect of QoL in young patients with CL/P that is mostly affected. Other associated variables within studies that may have an impact on QoL were also identified.

    MATERIALS AND METHODS: Systematic searches of PubMed, Scopus and Web of Science databases were conducted. Independent reviewers screened the title, abstract and full texts according to predetermined inclusion and exclusion criteria. Articles published in English from January 2012 to March 2022 reporting the QoL of non-syndromic young patients aged 7-18 years with CL/P were included. Review articles and articles reporting the psychological adjustment of parents or other family members with CL/P were excluded.

    RESULTS: 975 publications were identified, of which 20 studies met our inclusion criteria. The majority of studies reported that the CL/P condition has a negative impact on the QoL. Psychological health, functional well-being, socialemotional well-being and school environment are domains that are affected. Compared with typically developing young patients, those with CL/P had lower QoL scores even though QoL was assessed using different instruments across studies. The impact of CL/P on overall QoL scores varied by age but not gender or cleft type.

    CONCLUSION: Our reviews had shown the presence of CL/P negatively affects the QoL of young patients. Psychological health is the most affected QoL domain. Understanding the impacted domain will help in planning and delivering better health care for individuals with CL/P and reducing the stigma commonly associated with CL/P. Future studies should target intervention on psychological health and consider resilience factors towards positive adjustment.

  15. Md Nor MZ, Said AH, Che Man M, Yusof MZ
    Med J Malaysia, 2024 Jan;79(1):34-41.
    PMID: 38287755
    INTRODUCTION: Patient satisfaction is widely used to monitor the quality of health care services. A significant patient load may influence health care services and patient satisfaction. Klinik Kesihatan Bandar Kuantan, Pahang (KKBK) has the highest patient loads in Pahang state, followed by Klinik Kesihatan Beserah and Klinik Kesihatan Kurnia. There are up to 700 attendees at KKBK per day, representing a population of 209679. KKBK had receives several complaints and patient unhappiness with its health care services, despite the administration's efforts to improve the clinics healthcare delivery. Thus, this study aimed to measure patients' satisfaction towards health care services at Pahang's highest patient loads primary care clinic.

    MATERIALS AND METHODS: A cross-sectional study was conducted at Klinik Kesihatan Bandar Kuantan, Kuantan, Pahang. Patients were selected using stratified random sampling, and 201 participants were selected. The selected participants were asked to fill up the self-administered validated questionnaires consisting of background characteristics and Patient Satisfaction Questionnaire 18 (PSQ-18). Data collection period was from March 2022 to August 2022. Descriptive analysis was used to describe the background characteristics of respondents and the score of patient satisfaction. Multiple linear regression was used to determine the factors associated with patient satisfaction while adjusting for cofounders.

    RESULTS: A total of 201 eligible data points were analysed in the study. The respondent mean age was 47.1 ± 16.9. Most respondents were Malay (68.7%), having secondary education (54.2%) and predominantly from the B40 income class (88.1%). The overall mean patient satisfaction score was 3.83 ± 0.31. There were significant associations between overall satisfaction with patient education level (B = -0.144; 95% CI -0.246, -0.042; p = 0.006), waiting time (B = -0.371; 95% CI -0.534, -0.209; p = 0.001) and consultation duration (B = -0.154; 95% CI -0.253, -0.055; p = 0.0020). It was found that patients with secondary education were less satisfied compared to patients with primary education level on health care services they received. Meanwhile, those who were not happy with the waiting time and consultation duration showed less satisfaction with overall healthcare services.

    CONCLUSION: Despite serving the most significant number of patients in Pahang state, most of the patient were satisfied by the health care services at Klinik Kesihatan Bandar Kuantan. However, it is recommended to improve the waiting time and the consultation time in this clinic.

  16. Hanifah YA, Yusof MY
    Malays J Pathol, 1991 Jun;13(1):33-5.
    PMID: 1795559
    A total of 676 patients were admitted to the intensive care unit, University Hospital, Kuala Lumpur between January 1989 and March 1990. Fifty-one hospital-acquired infections were recorded, giving a rate of 7.6%. The most frequent site of infection was the respiratory tract (41.2%), followed by the urinary tract (27.5%). Most of the pathogens were gram-negative bacilli (71%). The three most common pathogens were Klebsiella species, Pseudomonas aeruginosa and Staphylococcus aureus.
  17. Hassan R, Mohd Yusof M, Kamarudin NA
    Malays J Med Sci, 2010 Oct;17(4):67-70.
    PMID: 22135564 MyJurnal
    An atlanto-occipital dislocation is a rare airbag-induced injury in trauma patients. We report a case of an atlanto-occipital dislocation in a 6-year-old patient who was an unrestrained passenger in the front seat of a vehicle involved in a low-speed motor vehicle accident. This case illustrates the fatal threat of airbag deployment to the child passenger travelling in the vehicle front seat even in a low-speed collision, and supports the recommendation that children under 12 years of age travelling in vehicles with dual airbag systems should be seated in the back.
  18. Sam IC, Karunakaran R, Kamarulzaman A, Ponnampalavanar S, Syed Omar SF, Ng KP, et al.
    J Hosp Infect, 2012 Apr;80(4):321-5.
    PMID: 22237130 DOI: 10.1016/j.jhin.2011.12.004
    Brucella species are easily transmitted by aerosols and can be acquired in the laboratory.
  19. Misbah S, AbuBakar S, Hassan H, Hanifah YA, Yusof MY
    J Hosp Infect, 2004 Dec;58(4):254-61.
    PMID: 15564001
    The antibiotic susceptibility profiles and the repetitive extragenic palindromic sequence-based polymerase chain reaction (REP-PCR)-determined genotypes of 109 Acinetobacter strains collected from the University Malaya Medical Center (UMMC), Kuala Lumpur, Malaysia, in 1987 (N=21) and 1996-1998 (N=88) were established. Twelve antibiotic susceptibility profiles of antibiotics used at the UMMC were obtained. In descending order of effectiveness, imipenem, amikacin and ciprofloxacin were the most effective against the Acinetobacter strains. Compared with 1987 isolates, the isolates obtained in 1996-1998 had decreased susceptibility to these antibiotics and were tolerant to the antibiotics up to an MIC90 of > or =256 mg/L. REP-PCR DNA fingerprints of all the isolates revealed the presence of four Acinetobacter spp. lineages; 92% of all the isolates belonged to two dominant lineages (genotypes 1 and 4). Genotype 4 isolates predominant in 1987 showed increased resistance and antibiotic tolerance to imipenem, amikacin and ciprofloxacin compared with the 1996-1998 isolates. In contrast, genotype 1 isolates from 1996-1998 were mainly sensitive to these antibiotics. These findings demonstrate the presence of at least two independent Acinetobacter spp. lineages in the same hospital, and suggest the possibility that genotype 4 Acinetobacter spp. acquired the resistance phenotype in situ, whereas most of the genotype 1 isolates were probably introduced to the hospital in recent years.
  20. Kahar Bador M, Rai V, Yusof MY, Kwong WK, Assadian O
    J Hosp Infect, 2015 Jul;90(3):248-52.
    PMID: 25982193 DOI: 10.1016/j.jhin.2015.03.009
    Inappropriate use of medical gloves may support microbial transmission. New strategies could increase the safety of medical gloves without the risk of patient and surface contamination.
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