Displaying publications 81 - 100 of 152 in total

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  1. Wu DB, Yee CH, Ng CF, Lee SWH, Chaiyakunapruk N, Chang YS, et al.
    Front Pharmacol, 2018;9:1078.
    PMID: 30386234 DOI: 10.3389/fphar.2018.01078
    Background: Lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (BPH) is a common condition affecting men. Studies have shown that the prevalence of LUTS/BPH increases with age, which will cause considerable economic burden to the healthcare system and society. The aim of the present study was to evaluate the long term cost effectiveness of dutasteride and tamsulosin therapy compared to tamsulosin alone in men with BPH in Hong Kong. Methods: A Markov decision model was constructed to estimate the economic impact from a healthcare payers' perspective, which only included direct costs. Analyses were conducted for a 4-year time frame. Results: When compared to tamsulosin alone, combination therapy was more expensive but also more effective in preventing complications and reduced the need for surgery. Over life-time projection suggest that combination therapy will be cost-effective if the willingness-to pay threshold of USD 20,000. Conclusion: Findings of this study found that combination therapy of tamsulosin and dutasteride was more cost-effective compared to tamsulosin alone across a wide range of scenario.
    Matched MeSH terms: Prostatic Hyperplasia
  2. Quek KF, Loh CS, Low WY, Razack AH, Chua CB
    Singapore Med J, 2002 Aug;43(8):391-8.
    PMID: 12507023
    This study examined the effects of treatment of lower urinary tract symptoms (LUTS) on the health-related quality of life (physical/functional, mental, social and global aspect), pain and prostatic symptoms.
    Matched MeSH terms: Prostatic Hyperplasia/drug therapy; Prostatic Hyperplasia/physiopathology*; Prostatic Hyperplasia/surgery
  3. Peh SC, Shaminie J, Poppema S, Kim LH
    Singapore Med J, 2003 Apr;44(4):185-91.
    PMID: 12952030
    Castleman's disease is an uncommon disease and the histopathogenesis is poorly understood. This study aims to investigate their clinicopathological and immunophenotypic profile.
    Matched MeSH terms: Giant Lymph Node Hyperplasia/metabolism; Giant Lymph Node Hyperplasia/pathology*; Hyperplasia
  4. Ahmed H, Paterson I, Aziz SA, Cremona O, Robinson M, Carrozzo M, et al.
    J Oral Pathol Med, 2023 Sep;52(8):710-717.
    PMID: 37339783 DOI: 10.1111/jop.13460
    BACKGROUND: Most oral squamous cell carcinoma patients present with late-stage disease. Early detection of the disease is considered to be the most effective way of improving patient outcomes. Several biomarkers have been identified as indicators of oral cancer development and progression; however, none have been translated into clinical practice. In this study, we have investigated the role of Epsin3, an endocytic adaptor protein, and Notch1, a transmembrane signalling protein, in oral carcinogenesis with a view to explore their potential as biomarkers.

    METHODS: Oral cancer cell lines and a normal oral keratinocyte cell line were used together with tissue samples of normal oral mucosa (n = 21), oral epithelial dysplasia (n = 74) and early stage (Stages I and II) oral squamous cell carcinoma (n = 31). Immunocytochemical staining, immunoblotting and real-time quantitative polymerase chain reaction (PCR) were performed to assess protein as well as gene expression levels.

    RESULTS: The expression levels of Epsin3 and Notch1 mRNA and protein are variable across different oral squamous cell carcinoma derived cell lines. Epsin3 was upregulated in oral epithelial dysplasia and oral squamous cell carcinoma tissues compared with normal epithelium. Overexpression of Epsin3 resulted in a significant reduction of Notch1 expression in oral squamous cell carcinoma. Notch1 was generally downregulated in the dysplasia and oral squamous cell carcinoma samples.

    CONCLUSION: Epsin3 is upregulated in oral epithelial dysplasia and oral squamous cell carcinoma and has the potential to be used as a biomarker for oral epithelial dysplasia. Notch signalling is downregulated in oral squamous cell carcinoma, possibly through an Epsin3-induced de-activation pathway.

    Matched MeSH terms: Hyperplasia
  5. Othman SK, Daud KM, Othman NH
    Malays J Med Sci, 2011 Oct;18(4):88-90.
    PMID: 22589678
    Kimura's disease is a rare condition and typically presents as non-tender subcutaneous swellings in the head and neck region, usually in the pre-auricular and submandibular areas. It is associated with lymphadenopathy (both local and distal), marked peripheral eosinophilia, and an elevated IgE level. It can easily be mistaken for a malignant disorder. Fine needle aspiration can be misleading, and a diagnosis is established only by histopathological examination. Renal involvement, which may affect up to 60% of patients, is the only systemic manifestation. We report a case of Kimura's disease in a Malay patient who was associated with steroid-responsive nephrotic syndrome.
    Matched MeSH terms: Angiolymphoid Hyperplasia with Eosinophilia
  6. Mohamad I, Hassan S, Salim R
    Malays J Med Sci, 2007 Jul;14(2):19-21.
    PMID: 22993487 MyJurnal
    Tonsillectomy is performed for several indications, the two commonest in practice are infective ( chronic tonsillitis ) and obstructive symptoms such as sleep apnea. The objective of this study is to determine the necessity of routinely performed histopathological examination of specimens post-tonsillectomy. In this paper, a retrospective evaluation of 480 specimens from 241 patient who has undergone tonsillectomies in Hospital Universiti Sains Malaysia between January 2004 and October 2005 was done. It was found that 462 ( 96.25 % ) were reactive lymphoid hyperplasia and 18 ( 3.75 % ) were follicular hyperplasia. None of them were found malignant. The result of this study indicate that routine histopathological examination of tonsillectomy specimens are unnecessary and results only in added cost and a loss of man hours.
    Matched MeSH terms: Hyperplasia
  7. Ng KL, Htun TH, Dublin N, Ong TA, Razack AH
    Asian Pac J Cancer Prev, 2012;13(6):2515-8.
    PMID: 22938414
    AIM: To study the causes and significance of both microscopic and macroscopic haematuria in adult patients and assess possible relevance to early detection of urological cancers.

    METHODS: 417 patients presenting with haematuria were assessed in our Urology Unit. Following confirmation of haematuria, these patients were subjected to imaging techniques and flexible cystoscopy. Parameters analysed included clinical characteristics, imaging results, flexible cystoscopy findings, time delay to diagnoses and eventual treatment and final diagnoses of all cases.

    RESULTS: 390 haematuria cases were analysed from 417 consecutive patients with haematuria. After 27 cases were excluded as they had previous history, 245 microscopic and 145 macroscopic. Age range was 17 to 95 years old with predominance of 152 females to 239 males. The racial distribution included 180 Chinese, 100 Indians,95 Malays and 15 other races. The final diagnoses were benign prostatic hyperplasia (22.6%), no cause found (22.3%), other causes (18.7%), urolithiasis (11.5%), urinary tract infection UTI (10.8%), non specific cystitis (10.3%), bladder tumours (2.8%) and other genitourinary tumours (1%). 11 new cases (2.8%) of bladder cancers were diagnosed, with a mean age of 59 years. Only 3 of 245 (1.2%) patients with microscopic haematuria had newly diagnosed bladder tumour compared with 8 of 145 (5.5%) patients with frank haematuria (p=0.016). Mean time taken from onset of symptoms to diagnosis of bladder cancer was 53.3 days with definitive treatment (TURBT) in 20.1 days from diagnosis.

    CONCLUSION: - This study has highlighted the common causes of haematuria in our local setting. We recommend that full and appropriate investigations be carried out on patients with frank haematuria especially those above 50 years old in order to provide earlier detection and prompt management of bladder diseases especially tumours.

    Matched MeSH terms: Prostatic Hyperplasia/diagnosis*
  8. Rohana AG, Ming W, Norlela S, Norazmi MK
    Med J Malaysia, 2007 Jun;62(2):158-9.
    PMID: 18705452 MyJurnal
    We report a case of a young hypertensive male who was first seen in 1998 with a right thalamic haemorrhage and uncontrolled hypertension. CT abdomen showed a right adrenal tumour and a hyperplastic left adrenal gland. Laparoscopic adrenalectomy performed followed by histopathological examination confirmed the diagnosis of adrenal adenoma. He subsequently presented to us again a year later with persistent hyperkalaemia and asymptomatic hyponatraemia. Further investigations strongly suggested the presence of isolated mineralocorticoid deficiency with normal cortisol levels. This was confirmed to be due to partial or late-onset congenital adrenal hyperplasia (CAH). We discuss the association of partial CAH and adrenal tumours and the unmasking of the mineralocorticoid deficiency following adrenalectomy.
    Matched MeSH terms: Adrenal Hyperplasia, Congenital/complications*
  9. Quek KF, Low WY, Razack AH, Loh CS
    BJU Int, 2001 Jul;88(1):21-5.
    PMID: 11446839
    OBJECTIVE: To validate the English version of the International Prostate Symptom Score (IPSS) in patients with and without urinary symptoms in a Malaysian population.

    PATIENTS AND METHODS: Validity and reliability were assessed in patients with lower urinary tract symptoms (LUTS) and in patients with no LUTS. Reliability was evaluated using the test-retest method and internal consistency using Cronbach's alpha. Sensitivity to change was expressed as the effect size in the score before and after intervention in additional patients with LUTS who underwent transurethral resection of the prostate (TURP).

    RESULTS: Internal consistency was excellent; there was a high degree of internal consistency for each of the seven domains and for the total score (Cronbach's alpha > or = 0.60 and > or = 0.79, respectively) in the populations studied. The test-retest correlation coefficient for the seven domain scores was highly significant. The intra-class correlation coefficient was high (> or = 0.59). There was a high level of sensitivity and specificity for the effects of treatment, with a very significant change between the seven scores domains in the treated group but not in the control group.

    CONCLUSIONS: The IPSS is suitable, reliable, valid and sensitive to clinical change in the Malaysian population.

    Matched MeSH terms: Prostatic Hyperplasia/diagnosis*
  10. Quek KF, Low WY, Razack AH, Loh CS
    BJU Int, 2000 Oct;86(6):630-3.
    PMID: 11069367
    OBJECTIVE: To assess and evaluate the level of depression, anxiety and psychiatric status in patients with lower urinary tract symptoms (LUTS) before and after treatment by surgery or drugs.

    PATIENTS AND METHODS: The study included 123 patients (mean age 64.6 years, SD 7. 95) with LUTS who were treated medically (with alpha-blockers, i.e. terazosin, prazosin, doxazosin and alfuzosin), and 52 patients (mean age 69.6 years, SD 7.94) with LUTS and confirmed to have benign prostatic hyperplasia (BPH) who underwent transurethral resection of the prostate (TURP). Both groups were assessed at baseline and 3 months after treatment using standardized questionnaires (the Beck Depression Inventory, the State-Trait Anxiety Inventory and the General Health Questionnaire-12).

    RESULTS: Patients before TURP were significantly more depressed, worried and psychiatrically morbid than were those before medical treatment. Three months after medical and surgical treatment, there was significantly less depression, anxiety and psychiatric morbidity in the TURP than in the medication group.

    CONCLUSIONS: TURP is a better treatment than medication for minimising anxiety, depression and psychiatric morbidity after treatment in patients with LUTS, but causes greater psychological stress before treatment.

    Matched MeSH terms: Prostatic Hyperplasia/psychology*
  11. Liong ML, Suzuki T, Yamanaka H, Kurokawa K, Daikuzono N, Nakazato M
    J Clin Laser Med Surg, 1994 Apr;12(2):85-92.
    PMID: 10151050
    Prostalase¿ has a probe that emits a laser beam at 360 degrees . Targeted obstructive prostatic adenoma tissue was heated to above the cytotoxic threshold temperature of 45 degrees C. After successful canine prostate study, from September 1992 to April 1993, 45 patients were treated. This paper reports the 9 months results of this initial cohort of patients. Prostatic and periprostatic temperature mapping showed the mean temperature within the adenoma zone was 49 degrees C, while the periprostatic tissue remained within the safety level of less than 42.5 degrees C. The mean prostate volume reductions at 3, 6, and 9 months were 36, 33, and 38%, respectively. Those patients whose surgery was unsuccessful had prostatic tissue removed by TURP at 2 to 3 months. This tissue revealed a definite zone of coagulative necrosis. For the clinical assessment, patients were divided into urine retention (UR) and nonretention (NR) subgroups. At 9 months, 20 of the 32 UR subgroup and 10 of the 13 NR subgroup patients were available for assessment. Due to poor response or complications, 6 of the 26 UR patients (23%) required ancillary treatment. Hence, 20 of the 26 cases (77%) remained catheter free and their mean maximum uroflow +/- SE was 9.6 +/- 0.7 ml/sec. Based on a Siroky normogram only 7 of these 26 patients (27%) became unobstructed. Two of the 12 NR subgroup patients (17%) required ancillary treatment. The mean maximum uroflow +/- SE was 10.7 +/- 1.2 ml/sec.(ABSTRACT TRUNCATED AT 250 WORDS)
    Matched MeSH terms: Prostatic Hyperplasia/therapy*
  12. Khalid BA, Nurshireen A, Rashidah M, Zainal BY, Roslan BA, Mahamooth Z
    Med J Malaysia, 1990 Jun;45(2):148-53.
    PMID: 1725553
    One hundred and six prostatic tissue samples obtained from transurethral resection were analysed for androgen and estrogen receptors. In 62 of these, progesterone and glucocorticoid receptors were also assayed. Steroid receptors were assayed using single saturation dose 3H-labelled ligand assays. Ninety percent of the 97 prostatic hyperplasia tissues and six of the nine prostatic carcinoma tissues were positive for androgen receptors. Estrogen receptors were only present in 19% and 33% respectively. Progesterone receptors were present in 70% of the tissues, but glucocorticoid receptors were present in only 16% of prostatic hyperplasia and none in prostatic carcinoma.
    Matched MeSH terms: Prostatic Hyperplasia/metabolism*
  13. Zain RB, Fei YJ
    Odontostomatol Trop, 1990 Sep;13(3):94-6.
    PMID: 2075149
    Peripheral fibroma/fibrous epulis accounts for the great majority of localised gingival swellings as was substantiated by various reports in the literature. A study was undertaken to investigate the clinical features of a series of 204 localised fibrous gingival swellings received by the Histopathology Laboratory, Department of Oral Surgery, National University of Singapore. The female patients were more affected than the male patients and the lesions occurred predominantly among the Chinese. The lesions were mainly pedunculated and most commonly occurred in anterior maxilla. The recurrence rate was about 10.3%. In conclusion the results obtained in this study were overall in agreement with those of other authors.
    Matched MeSH terms: Gingival Hyperplasia*
  14. Tan TT, Choy YW, Norizan MA, Meah F, Khalid BA
    Med J Malaysia, 1990 Jun;45(2):154-8.
    PMID: 2152020
    Adrenal histoplasmosis in Cushing's syndrome of adrenal origin is rare. A patient with Cushing's disease with bilateral nodular hyperplasia and histoplasmosis of both the adrenal glands is described. The diagnosis of histoplasmosis was only made post operatively as the constitutional manifestations, besides being partially masked by hypercortisolism also resemble those of tuberculosis.
    Matched MeSH terms: Hyperplasia/pathology
  15. Boon LC, Nik-Hussien NN
    Br J Oral Maxillofac Surg, 1987 Oct;25(5):410-4.
    PMID: 3478086
    Burkitt's lymphoma is a tumour that most often affects the jaws, especially in endemic areas of Africa. In non-endemic areas, the jaws are affected in about 15-18% of cases. A case is presented which demonstrates the significance of jaw lesions in the disease. The history and pathogenesis of the disease also are discussed.
    Matched MeSH terms: Gingival Hyperplasia/etiology*
  16. Quek KF, Low WY, Razack AH, Chua CB, Loh CS
    Med J Malaysia, 2003 Aug;58(3):356-64.
    PMID: 14750375
    This study aimed to assess the sensitivity of the Malay version of the Brief Manual Sexual Function Inventory (BMSFI) on patients with and without urinary symptoms in Malaysian population. Validity and reliability were studied in patients with lower urinary tract symptoms (LUTS) and patients without LUTS. Reliability and validity was evaluated by using the test-retest method while internal consistency was assessed by Cronbach's alpha. Sensitivity to change was expressed as the effect size in the pre-intervention versus post-intervention score in patients who underwent transurethral resection of the prostate (TURP). Internal consistency was excellent. A high degree of internal consistency was observed for each of the 11 items and 5 domains (Cronbach's alpha value = 0.67 and higher and 0.73 and higher respectively). Test-retest correlation coefficient for the 11 items scores was highly significant. Intraclass correlation coefficient was high (ICC = 0.68 and above). The sensitivity and specificity showed a high degree of sensitivity and specificity to the effects of treatment. A high degree of significant level between baseline and post-treatment scores were observed across 3 domains in the treatment corresponds cohort but not in the control group. The Mal-BMSFI is a suitable, reliable, valid and sensitive to clinical change in the Malaysian population.
    Matched MeSH terms: Prostatic Hyperplasia/complications*
  17. Shafiee MN, Khan G, Ariffin R, Abu J, Chapman C, Deen S, et al.
    Gynecol Oncol, 2014 Jan;132(1):248-53.
    PMID: 24183733 DOI: 10.1016/j.ygyno.2013.10.028
    Current data indicate that there is a significant risk of endometrial cancer (EC) in women with polycystic ovarian syndrome (PCOS), although further research needed to clarify the exact molecular mechanisms. Endometrial hyperplasia is a premalignant condition that usually heralds EC and it shares identical risk factors with EC. Metabolic syndrome with a triad of obesity, hyperinsulinaemia and diabetes, which is commonly observed in PCOS appears to be a key mechanism in EC pathogenesis. Measures to improve insulin resistance could therefore play a role in reducing the risk of EC in women with PCOS. Metformin is an insulin sensitising agent which is safe, widely available and currently licensed for type-2 diabetes. It has been clearly shown in both animal and human studies that metformin is of value in reversing endometrial hyperplasia. Metformin may therefore prevent EC in PCOS. This article reviews the use of metformin in reducing EC risk in PCOS and makes a case for future research on this topic.
    Matched MeSH terms: Endometrial Hyperplasia/complications
  18. Zainuddin AA, Grover SR, Abdul Ghani NA, Wu LL, Rasat R, Abdul Manaf MR, et al.
    Health Qual Life Outcomes, 2020 Aug 01;18(1):258.
    PMID: 32738912 DOI: 10.1186/s12955-020-01515-9
    BACKGROUND: This study investigates the health-related quality of life (HRQOL) of female patients with congenital adrenal hyperplasia (CAH) in Malaysia. The objectives were to attain socio-demographic and medical data on these Malaysian females with CAH and establish their health-related quality of life (HRQOL) in comparison to age matched diabetic controls.

    METHODS: A cross-sectional study was conducted over 6 months in the two main tertiary centres for CAH patients in Malaysia. Participants including 59 female-raised CAH patients (mean age ± SD = 16.3 ± 4.2 years, range 10-28 years) compared to 57 age-matched female diabetic patients (mean age ± SD = 16.5 ± 3.4 years, range 10-26 years). Socio-demographic and medical profiles was obtained through semi-structured interviews. HRQOL of participants were evaluated utilising validated, Malay translated questionnaires which were age appropriate: Pediatric Quality of Life Inventory (PedsQL v4.0) scales for Child (8-12) and Adolescent (13-18) and Medical Outcome Survey 36-item Short Form version. These were then compared to the diabetic controls.

    RESULTS: The CAH participants consisted of children (ages 10-12 years, n = 12), adolescents (ages 13-17 years, n = 29) and adults (≥ 18 years, n = 18). The majority were Malays (64.4%) and had salt-wasting CAH (67.8%). There were no significant differences between the total mean score of the HRQOL of the combined children and adolescents CAH group (total mean score ± SD = 81.6 ± 17.9, 95% CI = 75.6-87.6) when compared to age-matched diabetic patients (total mean score ± SD = 80.8 ± 11.0, 95% CI = 77.0-84.5, P = 0.81, effect size = 0.05); no significant difference between the adult CAH and diabetic controls in the physical [median score (IQR) CAH vs diabetics; 49.3 (11.4) vs. 50.2 (6.1), P = 0.60, effect size = 0.09] and the mental composite scores [median score (IQR) CAH vs. diabetics; 47.8 (14.1) vs. 50.0 (10.8), P = 0.93, effect size = 0.01].

    CONCLUSIONS: The HRQOL of the Malaysian CAH cohort were comparable to the diabetic controls.

    Matched MeSH terms: Adrenal Hyperplasia, Congenital/psychology*
  19. Son HJ, Lee H, Kim JH, Yu IK, Han HY
    Malays J Pathol, 2018 Apr;40(1):73-78.
    PMID: 29704388
    Progressively transformed germinal centers (PTGC) is a benign process characterised by a morphological variant of reactive follicular hyperplasia in lymph nodes. It was recently shown that some cases of PTGC are associated with IgG4-related disease (IgG4-RD) or increased IgG4 plasma cells. Five years ago, a 57-year-old woman presented with enlargement of multiple lymph nodes in the left parotid, submandibular, and neck areas, pathologically diagnosed as PTGC after excisional biopsy. Since then, she has experienced numbness in her extremities, especially the left shoulder and arm, pruritus on the left side of the face and intermittent facial palsy, for which she has been receiving regular symptomatic treatment. Recently the patient developed diabetes mellitus (approximately seven months ago). In routine follow-up scans, a mass was detected in left kidney and magnetic resonance imaging of the abdomen prior to surgery revealed a slightly enhanced bulky mass replacing the pancreatic tail and uncinate process. The mass in left kidney was diagnosed as clear cell renal cell carcinoma, and the pathological features of the pancreatic lesion were those of IgG4-related chronic fibrosing pancreatitis. Retrograde examination of the neck lymph node diagnosed as PTGC showed increased deposition of IgG4-positive plasma cells.
    Matched MeSH terms: Hyperplasia/pathology
  20. Tan JSJ, Ong KC, Ong DBL, Wu YS, Razack A, Kuppusamy S, et al.
    Malays J Pathol, 2019 Dec;41(3):243-251.
    PMID: 31901908
    INTRODUCTION: Polymorphic expression of a CAG repeat sequence in the androgen receptor (AR) gene may influence the activity of the AR and the occurrence of prostate cancer and the TMPRSS2-ERG fusion event. Furthermore, this polymorphism may be responsible for the ethnic variation observed in prostate cancer occurrence and expression of the ERG oncogene. We investigate the expression of AR and ERG in the biopsies of Malaysian men with prostate cancer and in the same patients relate this to the length of the CAG repeat sequence in their AR gene.

    MATERIALS AND METHODS: From a PSA screening initiative, 161 men were shown to have elevated PSA levels in their blood and underwent prostatic tissue biopsy. DNA was extracted from the blood, and exon 1 of the AR gene amplified by PCR and sequenced. The number of CAG repeat sequences were counted and compared to the immunohistochemical expression of ERG and AR in the matched tumour biopsies.

    RESULTS: Of men with elevated PSA, 89 were diagnosed with prostate cancer, and 72 with benign prostatic hyperplasia (BPH). There was no significant difference in the length of the CAG repeat in men with prostate cancer and BPH. The CAG repeat length was not associated with; age, PSA or tumour grade, though a longer CAG repeat was associated with tumour stage. ERG and AR were expressed in 36% and 86% of the cancers, respectively. There was no significant association between CAG repeat length and ERG or AR expression. However, there was a significant inverse relationship between ERG and AR expression. In addition, a significantly great proportion of Indian men had ERG positive tumours, compared to men of Malay or Chinese descent.

    CONCLUSIONS: CAG repeat length is not associated with prostate cancer or expression of ERG or AR. However, ERG appears to be more common in the prostate cancers of Malaysian Indian men than in the prostate cancers of other Malaysian ethnicities and its expression in this study was inversely related to AR expression.

    Matched MeSH terms: Prostatic Hyperplasia/genetics
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