MyMedR

Intraoperative methylene blue sentinel lymph node mapping in colorectal cancer

Chan SH, Ng C, Looi LM

ANZ J Surg, 2008 Sep;78(9):775-9.

PMID: 18844907 DOI: 10.1111/j.1445-2197.2008.04648.x

Isosulfan blue is not available for clinical use in Malaysia. This study describes the use of methylene blue as an alternative to isosulfan blue in colorectal sentinel node mapping.

Matched MeSH terms: Colorectal Neoplasms/pathology*

Autologous chondrocyte transplantation in the repair of full-thickness focal cartilage damage in rabbits

Kamarul T, Selvaratnam L, Masjuddin T, Ab-Rahim S, Ng C, Chan KY, et al.

J Orthop Surg (Hong Kong), 2008 Aug;16(2):230-6.

PMID: 18725678

To compare the efficacy of autologous chondrocyte transplantation (ACT) versus non-operative measures for cartilage repair in rabbits.

Matched MeSH terms: Cartilage Diseases/pathology

Effect of haemodialysis on intraocular pressure

Samsudin A, Mimiwati Z, Soong T, Fauzi MS, Zabri K

Eye (Lond), 2010 Jan;24(1):70-3.

PMID: 19229270 DOI: 10.1038/eye.2009.33

To study the effect of haemodialysis on intraocular pressure (IOP) of patients at the University Malaya Medical Centre, Kuala Lumpur, and the influence of anterior chamber angles, surgery, and diabetes on the change in IOP after haemodialysis.

Matched MeSH terms: Anterior Chamber/pathology

Colloid cyst of third ventricle mimicking normal tension glaucoma

Patel DK, Ali NA, Iqbal T, Subrayan V

Ann Ophthalmol (Skokie), 2008;40(3-4):177-9.

PMID: 19230359

Colloid cysts are rare intracranial tumors most commonly found in the third ventricle. We present a case of colloid cyst of the third ventricle that manifested as bilateral advance optic disc cupping, superior hemifield defects in the visual fields and normal intraocular pressure.

Matched MeSH terms: Third Ventricle/pathology*

Growth kinetic study on normal and microtic chondrocytes of human auricular cartilage

Ishak MF, Aminuddin BS, Asma A, Lokman BS, Ruszymah BH, Goh BS

Med J Malaysia, 2008 Jul;63 Suppl A:117-8.

PMID: 19025013

Chondrocytes were isolated from normal and microtic human auricular cartilage after ear surgery carried out at Universiti Kebangsaan Malaysia Medical Centre. Chondrocytes were cultured and expanded until passage 4. After reached confluence, cultured chondrocytes at each passage (P1, P2, P3 and P4) were harvested and assigned for growth profile analysis. There was no significant difference in cell viability between both normal and microtic samples (p = 0.84). Both samples showed no significant differences for growth profile parameters in terms of growth rate, population doubling time and total number of cell doubling, except in passage 1, where there is significant difference in cell growth rate (p = 0.004). This preliminary data has indicated that chondrocytes from microtic cartilage has the potential to be used in the reconstruction of human pinna in the future.

Matched MeSH terms: Cartilage Diseases/pathology*

Analysis of pterygium size and induced corneal astigmatism

Mohammad-Salih PA, Sharif AF

Cornea, 2008 May;27(4):434-8.

PMID: 18434847 DOI: 10.1097/ICO.0b013e3181656448

To study the relationship between pterygium size (extension, width, total area) and corneal astigmatism in eyes with unilateral primary pterygium. Also to determine the critical size for surgery before the occurrence of a significant corneal astigmatism.

Matched MeSH terms: Pterygium/pathology

LNCaP prostate cancer cells are insensitive to zinc-induced senescence

Wong PF, Abubakar S

J Trace Elem Med Biol, 2008;22(3):242-7.

PMID: 18755400 DOI: 10.1016/j.jtemb.2008.03.008

Prostate cancer is an age-related disease that is linked to the inability of prostate cells to accumulate zinc following transformation. It is shown in the present study that the basal percentage of normal prostate cells expressing senescence-associated beta-galactosidase (SA-beta-gal) is higher than that of the cancer cells. In the presence of high zinc in the cell culture medium, the percentage of normal prostate cells expressing the SA-beta-gal increased but not that of the cancer cells. Increased intracellular zinc occurs in the prostate cancer cells treated with supraphysiologic concentration of zinc but it does not induce senescence or decrease the telomerase activities in these cells. Senescence, however, occurred when the prostate cancer cells DNA is damaged by irradiation. These findings suggest that prostate cancer cells are insensitive to the senescence-inducing effects of zinc but the cancer cells retain the capacity to undergo senescence through other pathways.

Matched MeSH terms: Prostatic Neoplasms/pathology*

Fulltext Methylene blue related sterile endophthalmitis

Lim AK, Ulagantheran V V, Siow YC, Lim KS

Med J Malaysia, 2008 Aug;63(3):249-50.

PMID: 19248701 MyJurnal

To report a case of methylene blue related endophthalmitis. Observational case report. Review of clinical record, photographs. A 60 year old man developed endophthalmitis after methylene blue was accidentally used to stain the anterior capsule during phacoemulsification of cataract. His left visual acuity deteriorated from 6/12 to 6/36 two weeks after the operation. Despite intensive treatment with topical and intravitreal antibiotics, his condition deteriorated. A vitrectomy and silicone oil injection eventually managed to control the progression of the disease and salvage the eye. However the visual outcome remained poor due to corneal decompensation and retinal ischemia. Both vitreous tap and vitreous biopsy were negative for any organism. Methylene blue is extremely toxic to ocular structures and should not be used intraocularly.

Matched MeSH terms: Endophthalmitis/pathology

Fulltext Colorectal cancer patients in a tertiary referral centre in Malaysia: a five year follow-up review

Rashid MR, Aziz AF, Ahmad S, Shah SA, Sagap I

Asian Pac J Cancer Prev, 2009;10(6):1163-6.

PMID: 20192604

BACKGROUND: Colorectal cancer (CRC) is one of the major malignancies in the world. In Malaysia, CRC is fast becoming the commonest cause of cancer death. Its etiology is complex, involving both environmental and genetic factors. This study looked at the profile and outcome of five-year follow-up of patients with CRC.

MATERIALS AND METHODS: Retrospective case review study done on CRC patients at University Kebangsaan Malaysia Medical Centre (UKMMC), Kuala Lumpur, Malaysia. Patientsandapos; socio-demographic characteristics, modalities of treatment, cancer characteristics and outcome at 5-year follow up were extracted from the case records.

RESULTS: A total of 107 case records of patients were analyzed. Peak age of CRC presentation was 40-69 years (71.1%). Male to female ratio was 1.2:1 with Chinese predominance (52.3%). Anaemia and its related symptoms including per rectal bleeding was the commonest clinical presentation. The median duration of clinical presentation was 13 weeks (IQR 21.8). More than two-thirds presented as non-emergency cases (69.2%). Most patients presented with Dukes C stage (40.2%). The overall 5-year survival rate was 40% with local recurrence rate of 19.6%. Metastasis after curative-intend treatment (surgery with adjuvant therapy) developed in 26% of patients. Lower recurrence (p = 0.016, OR = 0.205) and metastatic disease (p = 0.02, OR = 0.24) found among the Chinese patients. Almost half of the patients defaulted follow up care (43%), most often within the first year of treatment (22.4%) and the Chinese were the least likely to default (p= 0.04, OR = 0.45).

CONCLUSION: Socio-demographic profile of CRC patients in UKMMC is comparable to Asia pacific region. Apparent delay in seeking treatment gives rise to poor overall survival and local recurrence rates.

Matched MeSH terms: Colorectal Neoplasms/pathology*

Oral cancer presentation among Malay patients in hospital Universiti Sains Malaysia, Kelantan

Razak AA, Saddki N, Naing NN, Abdullah N

Asian Pac J Cancer Prev, 2009;10(6):1131-6.

PMID: 20192598

OBJECTIVE: The objective of this study was to identify the characteristics of oral cancer among Malay patients in Hospital Universiti Sains Malaysia (HUSM), Kelantan.

METHODS: A retrospective record review was conducted from August to December 2006 in HUSM. Of 133 patients with oral cancer diagnosed from 1986 to 2005, 118 were Malay. Data on socio-demographic background, high-risk habits practiced, clinical and histological characteristics, and treatment profile of the patients were obtained.

RESULTS: Malay patients with oral cancer were predominantly elderly, aged 60 years old and above (51.7%) at the time of diagnosis, with a mean age of 58.1 years (SD 16.81). Most patients were males (64.4%) and the majority of them were married (83.9%). More than half (58.5%) had been smokers, and of those who smoked, 89.9% were males. Some had a betel quid chewing habit (22.9%) but none ever consumed alcohol. The majority of the patients (77.1%) were diagnosed at stage IV. The tongue was the most usual site involved (37.3%) and squamous cell carcinoma was the most common histological type seen (75.4%).

CONCLUSIONS: The prevalence of oral cancer among Malay patients in HUSM is high (88.7%). It is predominantly found in elderly males and the majority of cases present at advanced stage.

Matched MeSH terms: Mouth Neoplasms/pathology

[Nipah encephalitis]

Kolomytsev AA, Kurinnov VV, Mikolaĭchuk SV, Zakutskiĭ NI

Vopr. Virusol., 2008 Mar-Apr;53(2):10-3.

PMID: 18450103

Nipah encephalitis is a particular dangerous disease that affects animals and man. Fatal cases of the disease have been identified in the persons looking after pigs in the villages of Malaysia. The causative agent is presumably referred to as morbilliviruses of the Paramixoviridae family. Two hundred persons died among the ill patients with the signs of encephalitis. The principal hosts of the virus were fox-bats (Megaschiroptera) inhabiting in the surrounding forests. The present paper descries the epidemiological features of the disease, its clinical manifestations, abnormal anatomic changes, diagnosis, and implemented controlling measures.

Matched MeSH terms: Encephalitis, Viral/pathology

Fulltext The relationship of p53 protein in meninigioma grading and their various influencing factors amongst neurosurgical patients in Hospital Kuala Lumpur

Kantha R, Saffari HM, Suryati MY

Med J Malaysia, 2007 Aug;62(3):194-6.

PMID: 18246905 MyJurnal

Meningioma, is the second most frequent intracranial tumor in Malaysia and are classified according to the World Health Organization classification. The relationship of p53 protein in the determination of meningioma grading and their influencing factors were studied via immunohistochemistry studies on 77 intracranial meningiomas (67 benign, 10 atypical). The higher the p53 reaction was correlated to the poorer the histological grade (19.4% in benign and 90% in atypical meningioma) (p < 0.001). Other variables like age, sex, ethnicity, demographic location, surgical clearance, midline shift and contrast enhancement of CT Scan Brain and clinical features were found not to be significant.

Matched MeSH terms: Brain Neoplasms/pathology*

Polymorphisms of HER2 Ile655Val and cyclin D1 (CCND1) G870A are not associated with breast cancer risk but polymorphic allele of HER2 is associated with nodal metastases

Naidu R, Yip CH, Taib NA

Neoplasma, 2008;55(2):87-95.

PMID: 18237245

The HER2 codon Ile655Val and Cyclin D1 (CCND1) G870A polymorphisms were analyzed in a hospital-based Malaysian population using PCR-RFLP method. Peripheral blood samples were collected from 230 breast cancer patients, and 200 normal and healthy women who had no history of breast disease or breast cancer. We evaluated the association between HER2 or CCND1 polymorphisms and breast cancer risk, and clinico-pathological parameters in the population. The genotype and allele frequencies of HER2 (P=0.163 vs P=0.0622) and CCND1 (P=0.377 vs P=0.284) polymorphisms were not significantly different between the breast cancer cases and normal subjects, respectively. Women who were Ile/Val heterozygotes (OR=1.48; 95% CI, 0.91-2.43), Val/Val homozygotes (OR=1.93; 95% CI, 0.51-7.77) and carriers of Val allele genotype (OR=1.53; 95% CI, 0.95-2.45) were not significantly associated with increased breast cancer risk. Similarly, women who were homozygous (OR=1.34; 95% CI, 0.77-2.34) or heterozygous (OR=0.98; 95% CI, 0.60-1.60) for A allele, or carriers of A allele genotype (OR=1.10; 95% CI, 0.70-1.73) were not associated with breast cancer risk. Analysis on clinico-pathological parameters showed that Val allele genotype was significantly correlated with nodal metastases but A allele genotype was not associated with any of the variables. Our findings suggest that the polymorphic alleles of HER2 and CCND1 may not play an important role as genetic markers for breast cancer risk, but presence of Val allele may be useful for tumor prognosis.

Matched MeSH terms: Breast Neoplasms/pathology

Method optimization on the use of postocclusive hyperemia model to assess microvascular function

Yvonne-Tee GB, Rasool AH, Halim AS, Wong AR, Rahman AR

Clin. Hemorheol. Microcirc., 2008;38(2):119-33.

PMID: 18198413

Recent development had allowed non-invasive assessment of microvascular function in vivo; however, the method has not been fully optimized and standardized. In this study, we aimed to characterize the "effective" occlusion duration needed to elicit sufficient postocclusive hyperemia (PORH) responses in forearm skin using laser Doppler fluximetry (LDF), in subjects with differing age, gender and menstrual phases.

Matched MeSH terms: Hyperemia/pathology*

Large retrosternal parathyroid carcinoma with primary hyperparathyroidism

Tan GC, Shiran MS, Swaminathan M, Phang KS, Rohaizak M

Asian J Surg, 2007 Oct;30(4):286-9.

PMID: 17962134

Parathyroid carcinoma is an uncommon cause of parathyroid hormone (PTH)-dependent hypercalcaemia, accounting for less than 1% of all cases of hyperparathyroidism. Parathyroid carcinoma is an indolent tumour with rather low malignant potential. Consideration of parathyroid carcinoma in the differential diagnosis of hypercalcaemic disorders is important because the morbidity and mortality are substantial and the best prognosis is associated with early recognition and surgical resection. Clinical indicators favouring parathyroid carcinoma over benign disease include markedly raised serum calcium levels, PTH and alkaline phosphatase. A palpable neck mass with both kidney and skeletal manifestations also give a high index of suspicion of parathyroid carcinoma. Histopathology alone is not sufficient to diagnose parathyroid cancer; it has to be correlated with the clinical findings. The initial and most effective treatment for parathyroid carcinoma is complete resection of the primary lesion, and repeated operations for recurrence are useful. The prognosis of parathyroid carcinomas is quite variable; 5-year survival rates vary from 40% to 86%, while the 10-year survival rate is approximately 49%. We report a case of parathyroid carcinoma occurring in a 55-year-old woman who presented with bone pain and hypercalcaemia.

Matched MeSH terms: Parathyroid Neoplasms/pathology

Intestinal microsporidial infections among Orang Asli (aborigine) children from Malaysia

Norhayati M, Al-Mekhlafi HM, Azlin M, Nor Aini U, Shaik A, Sa'iah A, et al.

Ann Trop Med Parasitol, 2007 Sep;101(6):547-50.

PMID: 17716439

Matched MeSH terms: Microsporidiosis/pathology

Effects of a synbiotic containing Lactobacillus acidophilus ATCC 4962 on plasma lipid profiles and morphology of erythrocytes in hypercholesterolaemic pigs on high- and low-fat diets

Liong MT, Dunshea FR, Shah NP

Br J Nutr, 2007 Oct;98(4):736-44.

PMID: 17490507

The aim of this study was to evaluate the effect of a synbiotic containing Lactobacillus acidophilus ATCC 4962, fructooligosaccharide, inulin and mannitol on plasma lipid profiles and erythrocyte membrane properties in hypercholesterolaemic pigs on high- and low-fat diets. Twenty-four white male Landrace pigs were randomly allocated to four treatment groups for 8 weeks (n 6). Treatment factors were the supplementation of synbiotic (with and without) and dietary fat (5 and 15 %). The supplementation of synbiotic reduced plasma total cholesterol (P = 0.001), TAG (P = 0.002) and LDL-cholesterol (P = 0.045) for both dietary fats. A higher concentration of esterified-cholesterol in HDL of pigs supplemented with synbiotic than the control regardless of dietary fat (P = 0.036) indicated that cholesterol was reduced in the form of cholesteryl esters. Reduced concentration of cholesteryl esters (P < 0.001) and increased concentration of TAG (P = 0.042) in LDL of pigs on synbiotic suggested that LDL-cholesterol was reduced via the hydrolysis of smaller and denser LDL particles. The erythrocytes of pigs without any synbiotic showed more prevalence of spur cells than those given the synbiotic, as supported by the higher cholesterol: phospholipid ratio in erythrocytes (P = 0.001). Also, membrane fluidity and rigidity were improved as supported by the decreased fluorescence anisotropies in the Hb-free erythrocyte membrane of pigs given synbiotic (P < 0.001). The administration of the synbiotic reduced plasma TAG, total cholesterol and LDL-cholesterol in hypercholesterolaemic pigs, possibly in the form of cholesteryl esters, via the interrelated pathways of lipid transporters (VLDL, LDL and HDL). The synbiotic also reduced deformation of erythrocytes via improved membrane fluidity and permeability.

Matched MeSH terms: Erythrocytes/pathology*

The clinical significance of immunoglobulin A deficiency

Latiff AH, Kerr MA

Ann. Clin. Biochem., 2007 Mar;44(Pt 2):131-9.

PMID: 17362578 DOI: 10.1258/000456307780117993

IgA deficiency is the most common primary immunoglobulin deficiency. The prevalence in Caucasians is around one in 500, whereas in some Asian populations it is very uncommon. Most individuals with IgA deficiency are clinically asymptomatic. Those with symptoms of immunodeficiency have predominantly sinopulmonary or gastrointestinal infections, which are more severe when associated with IgG2, IgG4 or specific antibody deficiency. IgA deficiency is believed to be one end of a spectrum of immunodeficiency with common variable immunodeficiency at the most severe end. Although primary IgA deficiency is the most commonly encountered form, secondary deficiencies due to drugs or viral infections are recognized. IgA deficiencies can be partial or transient. Primary IgA deficiency is caused by a defect of terminal lymphocyte differentiation, which leads to underproduction of serum and mucosal IgA; affected individuals have normal IgA genes. A number of non-immunoglobulin genes have been implicated in IgA deficiency. There have been many diseases reported in association with IgA deficiency, particularly autoimmune diseases. The most common association is with coeliac disease (CD), which has special significance since CD is usually diagnosed by detection of specific IgA antibodies that are obviously lacking in IgA deficiency. There is no specific treatment for patients with symptomatic IgA deficiency. Antibiotics are prescribed in those with acute infections. A significant proportion of IgA-deficient individuals are reported to have anti-IgA antibodies in their serum. Although blood or blood products given to IgA-deficient individuals can lead to severe, even fatal, transfusion reactions, such reactions are rare.

Matched MeSH terms: IgA Deficiency/pathology*

Role of impacted cerumen in hearing loss

Subha ST, Raman R

Ear Nose Throat J, 2006 Oct;85(10):650, 652-3.

PMID: 17124935

We performed a study to determine if cerumen in the ear canal causes significant hearing loss and to ascertain if there is any correlation between the amount of cerumen and the degree of hearing loss. Our study was conducted on 109 ears in 80 patients. The results indicated that impacted cerumen does cause a significant degree of conductive hearing loss. We found no significant correlation between the length of the cerumen plug and the severity of hearing loss. Nor did we find any significant correlation between the presence of impacted cerumen and variables such as age, sex, ethnicity, or affected side.

Matched MeSH terms: Ear Canal/pathology*

Laryngeal metastasis from a rectal carcinoma

Ramanathan Y, Rajagopalan R, Rahman NA

Ear Nose Throat J, 2007 Nov;86(11):685-6.

PMID: 18225631

Metastases to the larynx from distant primaries are rare. We report a case of a laryngeal metastasis from a rectal carcinoma.

Matched MeSH terms: Rectal Neoplasms/pathology*

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