Loss of heterozygosity (LOH) on several loci and mutations on PTEN tumor suppressor gene (10q23.3) occur frequently in sporadic gliomas. We have performed polymerase chain reaction (PCR)-LOH analysis using microsatellite markers and single-stranded conformational polymorphism (SSCP) analysis to determine the incidence of allelic losses on chromosome 10q, 9p, 17p and 13q and mutations of exons 5, 6 and 8 of the PTEN gene in malignant gliomas. Twelve of 23 (52.2%) malignant glioma cases showed allelic losses whereas 7 of 23, (30.4%) samples showed aberrant band patterns and mutations of the PTEN gene. Four of these cases showed LOH on 10q23 and mutations of the PTEN gene. The data on LOH indicated the involvement of different genes in gliomagenesis whereas mutations of the PTEN gene indicated the role of PTEN tumor suppressor gene in the progression of glioma in Malay population.
This study was done to estimate the prevalence of high blood pressure (BP) in treated and non-treated subjects with respect to age and gender and its association with other cardiovascular risk factors in Iran. This cross sectional study was performed in three cities of Iran on participants over 19 years at 2002. First a questionnaire consisting of demographic details, drug intake and smoking status was filled. Then physical examination including systolic and diastolic blood pressure (SBP, DBP), body mass index (BMI) and waist to hip circumference (WHC) was performed. Fasting blood sample was drawn for sugar (FBS), total cholesterol (TC) and triglyceride (TG) and a 2-hour postprandial glucose was also measured. In this study performed on 12494 subjects, 48% were males and 52% females. The mean age of men and women was 38.99+/-15.30 and 38.80+/-14.54 years respectively. The prevalence of high BP in men and women was 15.6% and 18.8% respectively. The prevalence of high BP was higher in women than in men, except in the younger age classes. Overall 26.7% of hypertensive men and 47.7% of hypertensive women were on anti-hypertensive pharmacological treatment. Among the treated patients, BP was under control in 6.4% of the men and 13.8% of the women. In 86.5% of men with high BP and 89.3% of women with high BP, at least one other cardiovascular risk factor was present and its prevalence increased with age in both genders. BMI >25 (especially abdominal obesity) was the most frequent associated risk factor (41.9% in male, 59% in female). Except for smoking, the prevalence of each cardiovascular risk factor increased with the severity of hypertension, except in young women. The prevalence of high BP- even in treated subjects- is high in Iran. Many subjects with high BP have at least one other associated cardiovascular risk factor. These data emphasize the necessity of implementing community-based interventions.
From October 13 to October 21, 1999, a total of 46 males, aged 8 to 19 years, were admitted to Beaufort Hospital after swimming in the creek near an oil palm plantation in Kampung (Kg) Kebatu, Beaufort. Thirty (30) presented with symptoms including fever, vomiting, bodyache, giddiness, headache, chest pain and cough, while 16 others, were asymptomatic. One, a 15 year old boy, died from haemorrhagic shock secondary to pulmonary haemorrhage. The onset of the illness was from 11 October to 19 October 1999. A case-control study found that the outbreak was associated with swimming in the creek (p<0.0001). A total of 44 paired sera samples were sent for microscopic agglutination test (MAT), 5 pairs showed sero-conversion, 3 pairs had 4 fold rise in titre and 18 pairs were positive at >320. The findings indicated that Leptospirosis was the cause of the outbreak of this illness and the contaminated creek water was the source of the infection. The occurrence of flooding and stagnation in the creek following the heavy rainfall during the first week of October 1999 could have contributed to the timing of the outbreak.
Loss of P53 function is regarded as one of the critical steps in colorectal carcinogenesis. This study determines the P53 expression pattern of colorectal carcinoma in a cohort of 116 local patients. There was no significant relationship between overexpression of P53 with tumour stage (p=-0.209, chi square test) and grade (p=0.877, chi square test). Survival analysis using Kaplan-Meier procedure did not show significant relationship between P53 positivity with overall recurrence-free and survival outcome (p=0.3322 and 0.921 respectively; log rank test). Long-term follow-up may give a better evaluation on the prognostic value of P53 overexpression in colorectal carcinoma.
In Malaysia, Spinal Muscular Atrophy (SMA) is diagnosed based on clinical observation with or without muscle biopsy. Molecular analyses of the SMA-related genes have not been available so far. In this preliminary study, we searched for homozygous deletion of Survival Motor Neuron (SMN1) and Neuronal Apoptosis Inhibitory Protein (NAIP) genes in Malay patients with SMA and found homozygous deletion of SMN1 exon 7 and 8 in all the patients while homozygous deletion of NAIP exon 5 was detected in only our type 1 patients but not in the type 3 patient. To the best of our knowledge, these are the first SMA cases diagnosed at the molecular level in Malaysia.
A 62-year-old man presented with a 2-month history of right occipito-parietal headache and worsening ipsilateral ptosis. CT scan and cerebral angiography revealed a large fusiform aneurysm of the P2 segment of the right posterior cerebral artery (PCA). The aneurysm was successfully trapped and subsequently excised via sub temporal approach leaving no additional neurological deficits to our patient.
Atopy is defined as the genetic propensity to develop immunoglobulin E antibodies in response to exposure to allergens and assessed by skin prick test (SPT) responses to common allergens, which may contribute to the development of the clinical disorders (phenotype). Although it is generally agreed that atopy is an important risk factor for allergic diseases such as asthma, rhinitis, and eczema, the extent to which atopy accounts for these diseases is controversial. One hundred forty one children (up to 12 years) were skin prick tested to evaluate 16 foods common to the Malaysian diet and 4 common aeroallergens. Eighty-five percent of patients had positive SPT reactivity. The most commonly implicated aeroallergen and food allergen was house dust mite (HDM) and Prawn. Seventy percent had positive SPT reactivity results to HDM and 24.8% to prawns. Fifty five percent were positive to more than one allergen and 17.7% positive to single aeroallergen. The prevalence of atopy in children with history of eczema was 90%. The incidence of HDM and food allergy especially crabs and prawns, is significantly greater in Malaysian Children with rhinitis symptoms.
A retrospective study was conducted to determine the incidence of nerve injuries in anterior dislocations of the shoulder and to determine if a neurological examination is routinely performed in such cases. One hundred and fifteen shoulder dislocations in 100 patients (74 males, 26 females; mean age 35+/-18 years) were reviewed. Eighty-seven patients were examined for neurological injuries prior to reduction and 8 of these patients (9.2%) were found to have sustained neurological injuries. Following reduction, neurological examination was performed in 85 patients. Three patients who were not examined initially prior to reduction were subsequently found to have nerve injuries after reduction. Seven patients (7%) were not examined for neurological injury both before and after reduction of the dislocation. Eleven patients were found to have sustained nerve injuries in the final analysis. Axillary nerve injuries were the most common, occurring in 8 patients. In conclusion, nerve injuries are common in shoulder dislocations. The importance of performing and documenting the findings of neurological examination anterior shoulder dislocations needs to be reiterated.
A sexual health course was offered and taught by academic staff from the Faculty of Medicine, University of Malaya during semester II of every year as a university elective course to other university students apart from medical students. The course covered a wide range of topics: adolescent sexuality, family planning and pregnancy, violence against women, alternative sexual behavior, physiology of sex, sex and the disabled, gender bias in sexuality, relationship and marriage, sexual dysfunctions, clarification of sexual attitudes and STDs and AIDS. The Sexual Knowledge and Attitude Test (SKAT-II) was used to measure students' pre- and post-course scores on sexual knowledge and attitudes. Fifty-four students who completed both the pre- and post-course tests showed a significant change in sexual knowledge and their attitudes towards sexual myths and autoeroticism. Sexual knowledge was also positively correlated with age, heterosexual relations, autoeroticism and sexual myths scores. However, sexual knowledge is negatively related to religiosity and the influence of religious beliefs on one's attitudes towards sexual matters. This study showed that the sexual health course offered does have a positive impact in increasing one's knowledge and changing one's attitudes towards sexual issues.
A patient diagnosed with gastrointestinal stromal tumour of the stomach underwent gastrectomy. Post-operatively, histopathology was reported as heterotopic pancreas of the stomach. Heterotopic pancreas is very rare and though most of them appear asymptomatic, surgical resection is advisable.
Skin-sparing mastectomy is still in its infancy in Malaysia. The option of skin-sparing mastectomy is rarely given to patients as many general surgeons perform the conventional mastectomy. This could also be compounded by the lack of awareness amongst the local surgeons on the safety, surgical technique and treatment outcome of this relatively new procedure. This case report demonstrates the feasibility of this procedure performed on a Malaysian patient with a comparable outcome of those reported in the Western countries.
Chromobacterium violaceum infection is rare but causes a high mortality rate particularly in immunosuppressed persons. Since its clinical presentation is non-specific and the diagnosis basically relies upon blood culture and sensitivity, this infection should be considered among the organisms targeted empirically for antibiotic therapy when a cellulitis or rapidly progressive illness follows exposure to water or soil. This is a case of fulminant septicemia caused by this rarely encountered organism.
A multistage random sampling method was used to select the community sample in the district of Kudat, Sabah. A total of 205 respondents from 210 selected houses were interviewed using a standardised questionnaire to ascertain their knowledge and attitude towards tuberculosis. Generally the knowledge about tuberculosis was poor. The well known symptoms that the respondents knew were coughing blood (46.2%), cough (37.1%), loss of weight (34.5%), and loss of appetite (32.0%). Only 51% thought that the disease was caused by germs and it was transmitted by air. TB sufferers were thought to be dirty (22%) and the majority (51%) were not keen to mix with TB patients. Although more than 90% of the respondents considered TB as socially acceptable within their family and community, a large proportion (41%) expressed that getting TB was embarrassing, 4% said it was a disgrace to the family, and 16% said that it was too sensitive to discuss about it. These behaviours suggest that at the private level, the respondents were still perceived negative social attitudes towards tuberculosis.
The albumin globulin ratio (A/G ratio) is meant to represent the ratio of alterations in serum proteins, since, in liver disease, globulins (G) rise following serum albumin (SA) decrease. pathophysiological value, its' use has been limited. Alternatively, we have developed an index, the globulin compensation index (GCI) to measure the changes in serum globulins when albumin is decreased. The index is calculated as follows: G - 25 / 35 - SA. The GCI has been tested using retrospective patients' data from the Hospital Universiti Sains Malaysia. Analysis of the data shows that the GCI may be of potential value in showing the actual serum protein status, especially in cases where globulins are decreased along with albumin. Furthermore, globulin rise in cases with reduced albumin was found in 72.3% of cases of hepatic diseases, whereas this finding occurred in up to 32.3% of cases of non-hepatic, systemic diseases.
A young gentleman presented with a history of multiple pseudoaneurysms of the right carotid artery, left radial artery, right femoral artery as well as deep vein thrombosis involving the right femoral vein. A diagnosis of Behcet's disease was made on the basis of his history of recurrent oral and genital ulceration with characteristic eye lesion.
Dysphagia is a known adverse effect of botulinum toxin injection into the cervical region for dystonia. We present an unusual case of dysphagia arising from injection into the orbicularis oculi muscle, which has hitherto not been described. We postulate that her dysphagia was caused by distant side effects of botulinum toxin due to repeated injections. We recommend that clinicians should restrict the frequency of injections to as few life-time doses of the toxin as possible for adequate management of spasm. The practice of re-injecting patients routinely every three months, or at the first return of mild spasms should be discouraged.
We report a case of a 6 month old baby boy who had congenital nasal encephalocele, repaired via the traditional staging procedure. The surgical techniques and procedures are described and discussed.
Dentigerous cyst in maxillary sinus, especially in children, is uncommon in Malaysia. Few cases of dentigerous cyst in maxillary sinus in children have been reported in the medical literature. According to Tay AB et al, dentigerous cyst was accounted for 2.3% of the 20 most common diagnosed oral tumors in Singapore form year 1993--1997. This report illustrates a case of the dentigerous cyst in the maxillary sinus, resulting in significant facial swelling, which was managed by endoscopic marsupialization of the cyst.
One of the undeniable facts about living is that everyday we are getting older. By 2050, it is projected that one out of every five Malaysians will be 60 or older. The economic challenge of this demographic change will affect development and the financial implications of sustaining well being of this group are formidable and complex. This population group has extensive oral disease, medical problems that complicate their oral care, and unique dental treatment challenges. The authors discuss the problem of oral healthcare among the aged, its impediments and propose some approaches for improvement to better serve the needs of this group of vulnerable members of our nation.