Browse publications by year: 2005

  1. Hamizah, M.S., Norhayati, M.N., Nor Azlina, A.R., Wan Shukri, W.S., Abdulah, H.
    MyJurnal
    Penyakit tifoid adalah penyakit berjangkit bawaan air dan makanan yang disebabkan oleh Salmonella typhii. Penyakit ini berlaku di seluruh durtia dan endemik di Kelantan. Pada April 2005, terdapat peningkatan kes tifoid yang dinotifikasi di daerah Bachok dan wabak telah diistiharkan. Pasukan siasatan telah dibentuk di mana setiap kes telahydisiasat dengan segera dan tindakan kawalan telah diambil seperti pemeriksaan dan penutupan premis makanan, kerja-kerja sanitasi dan pendidikan kesihatan. Pengesanan kes secara aktifjuga telah dilakukan. Mukim Gunong mencatatkan jumlah kes tertinggi iaitu 46.3%. Majoriti daripada kes terdiri daripadapelajar. Dua pembawa dari kalangan kontek juga turut dikesan. Lekuk epidemik menggambarkan berlakunya wabak purtca lazim. Lima daripada 1 1 1 bilangan sampel air dan dua daripada 146 bilangan sampel makanart yang diperiksa adalah positif terhadap Salmonella species tetapi tiada yang positif terhadap Salmonella typhii. Meskipun Pasar Jelawat merupakan lokasi yang disyakki sebagai punca utama jangkitan, ianya tidak dapat disahkan melalui penyiasatan dan ujan makmal.
    MeSH terms: Animals; Salmonella; Salmonella enterica; Gastropoda; Bivalvia
  2. Fadhli, Y., Zulkifli, A., Razlan, M.
    MyJurnal
    This is a cross-sectional study to determine the association between religious perception and smoking behavior of secondary male students in Kota Bharu, Kelantan. A self-administered questionnaire survey was conducted on 526 secondary four male students from eight randomly selected schools in Kota Bharu. There were 182 (34.6%) students who were current smokers, 12 (2.3%) were ex-smokers and 332 (63.1%) were non·smokers. More than half of the current smokers (53.4%) smoked regularly. Student’s perceptions on the religious opinion on smoking were signihcantly associated with smoking behavior. Other significant risk factors were having close friends who smoke, their perceptions on benefits and negative effects of smoking and the level of
    y relationship with their fathers. These factors were also found to be good predictors of student's smoking status. Health education programs to control smoking should include the religious aspect of smoking to improve it’s effectiveness.
    MeSH terms: Cross-Sectional Studies; Fathers; Health Education; Humans; Malaysia; Male; Surveys and Questionnaires; Risk Factors; Schools; Smoke; Smoking; Tobacco; Friends
  3. Aziah, B.D., Rusli, B.N., Winn, T., Naing, L.
    MyJurnal
    A cross-sectional study of 71 laboratory technicians in Ministry of Health Malaysia (MOH) Hospitals (response rate 89.9%) was conducted from September ZOO1 till February 2002. Seven MOH Hospitals in Kelantan were chosen. Karase job Content — Questionnaire (Malay Version) was used as research instrument in this study. There were five scales in the questionnaire; two scales were used to dehne job strain - decision latitude and psychological demands. Results showed that the majority of laboratory technicians in MOH Hospitah were classified as passive. However, the proportion of high strain group was the second highest after passive group. The percentage of laboratory technicians in MOH Hospitals which was classified as having a high job strain was 26.8%. The “high strain" group scored significantly higher for hazardous conditions, toxic exposures, total psychological stressors, total physical hazard, and total physical stressors as compared to the “non»high strain” group. Laboratory technicians in “high strain" group had significantly younger in age (18-34 years) group (42.1%) compared to those in “non·high strain" group (7.7%) and shorter total duration of employment (yr) ( 15 .3 x 6.8) compared to those in “non»high strain" group (19.2 x 6.7). We therefore conclude that less experienced and higher psychosocial factors at work experiencing higher job strain compared to those who were more experienced and less psychosocial factors.
    MeSH terms: Cross-Sectional Studies; Employment; Malaysia; Surveys and Questionnaires; Work; Laboratory Personnel
  4. Aniza, I., Syed Mohamed Al Junid, Sharifa Ezat
    MyJurnal
    Job satisfaction level of workers is among the important factors influencing the performance and productivity of an organization. A cross sectional study was conducted among Public Health Specialists in the Ministry of Health of Malaysia to identify their job satisfaction level and the factors influencing it. The respondents are from the Association of Public Health Specialists of Malaysia. A working in Ministry of Health. Focus group discussions were conducted in four states to develop a relevant and comprehensive questionnaire. Survey questionnaires were then mailed to the respondents. The response rate was 7 2.3%. In measuring the job satisfaction level seven aspects were studied. The study showed that ‘job and workload` is the main contributor to job dissatisfaction followed by ’management and policy aspect’, 'salary and remuneration: aspect’ and resources and facilities aspect. Most of the respondents (94.0%) were dissatisfied with their job. Gender and income were the predictors of general job satisfaction. As a conclusion, the management, policy and remuneration shouM be revised in order to overcome the problems identified and subsequently increase job satisfaction levels among Public Health Specialists in the Ministry of Health, Malaysia.
    MeSH terms: Cross-Sectional Studies; Income; Job Satisfaction; Malaysia; Postal Service; Public Health; Surveys and Questionnaires; Salaries and Fringe Benefits; Specialization; Workload; Focus Groups; Remuneration
  5. Zamirah Zainal Abidin, Shahida Mohd Said, Irma Shida Abu Samah, Mohd Yufi Ariandi Mohd Yusoff
    MyJurnal
    The oral health awareness and status among the Universiti Kebangsaan Malaysia first year dental students were studied. Seventy-three subjects underwent two components of assessment: questionnaire assessing oral health awareness and behaviour, and clinical examination of oral health status. Indices used including Plaque, Calculus, Community Periodontal Index for Treatment Needs (CPITN) and total score of Decayed, Missing, Filled and teeth indicated for Extraction (DMFX[T]). More than 90% of the subjects were reported to brush their teeth twice or more daily and used supplemental cleaning tools. They also knew the importance of healthy oral condition, the various causes and prevention of tooth decay and gum diseases. Although 70.3% felt they need dental treatment, the majority (81.9%) visited the dentist only when they feel it is necessary to do so. Clinical examination showed low scores of 0.99 and 0.40 for mean plaque and calculus indices, respectively, while 80.8% of the subjects have mild calculus accumulation. Code 2 of the CPITN Index was the highest (70.3%) among the subjects. The total DMFX was 291, with mean score of 0.14 per subject and the decayed component was the highest (D=186 teeth). These findings suggest that the subjects have acceptable oral health awareness, and also good existing oral health status.
    MeSH terms: Calculi; Dental Care; Dental Caries; Dental Plaque; Dentists; Gingiva; Gingival Diseases; Health Status; Humans; Malaysia; Oral Health; Periodontal Index; Students, Dental
  6. Suzana Shahar, Lee X.K., Siti Balkis Budin, Mokhtar Abu Bakar, Nor Aini Umar, Junara Mohd Halim
    MyJurnal
    The relationship between anaemia and cognitive function was evaluated among 35 Chinese elderly (24 men and 11 women) aged 60 to 85 years (mean age 70.1 ± 6.7 years) from five old folks homes in Klang Valley. They were interviewed to obtain information on social and health status, habitual dietary intake and cognitive function. Hodkinson's Abbreviated Mental Test was used to measure the cognitive function. Haematological indices which included Full Blood Count (FBC), serum iron, serum ferritin, Total Iron Binding Capacity (TIBC), serum folate and serum cobalamine (vitamin B12) were measured using an automated analyzer. Anthropometric measurements and clinical signs of anaemia were also examined. The findings indicated that the prevalence of anaemia as assessed using haemoglobin alone was 22.9%, while iron deficiency anaemia based on low serum iron, microcytic and hypochromic criterion was detected among 5.7% of the sample. Subclinical folate and vitamin B12 deficiencies were diagnosed among 34.3% and 8.6% of the subjects. However, there was no occurrence of megaloblastic anaemia. There was a positive correlation between cognitive score with mid upper arm circumference (MUAC) (r=0.547, p
    MeSH terms: Aged; Anemia; Anemia, Megaloblastic; Arm; Cognition; Female; Ferritins; Folic Acid; Health Status; Hemoglobins; Humans; Intelligence Tests; Iron; Male; Vitamin B 12; Vitamin B 12 Deficiency; Prevalence; Anemia, Iron-Deficiency
  7. Roslan Abdul Rahman, Fadzilah Ismail, Roszalina Ramli, Ghazali Mat Nor, Sha Primuharsa Putra
    MyJurnal
    Kimura's disease is a chronic inflammatory disorder which affects the subcutaneous tissues of the head and neck, axilla and upper limb as well as the groin region. In the head and neck region, major salivary glands and regional lymph nodes are mainly involved with associated eosinophilia and an elevated IgE concentration. Three cases of Kimura's disease involving the parotid glands, lymph nodes and cheek are presented with a brief review of the literature.
    MeSH terms: Angiolymphoid Hyperplasia with Eosinophilia; Axilla; Cheek; Groin; Immunoglobulin E; Lymph Nodes; Neck; Parotid Gland; Subcutaneous Tissue
  8. Nashrah Maamor, Sitti Ladyia Salleh, Nurul Ain Abdullah
    MyJurnal
    The objective of this study was to investigate the degree to which Auditory Steady State Response (ASSR) thresholds correlate with behavioral thresholds in two groups of adult subjects, one with normal hearing and the other with sensorineural hearing impairment. When the relationship between ASSR and behavioral thresholds were analyzed separately according to different groups of subjects, significant correlations were only found for the hearing impaired group. The mean differences between the actual and the predicted thresholds derived from linear regression analysis for that group of subjects were found to be 5 dB (SD = 4), 3 dB (SD = 3), 4 dB (SD = 3) and 4 dB (SD = 4) with correlation coefficients of 0.80, 0.88, 0.91 and 0.97 for the 500, 1000, 2000 and 4000 Hz carrier frequencies, respectively. When the relationship between ASSR and behavioral thresholds were analyzed using data from both groups of subjects, correlation coefficients were found to be higher across carrier frequencies of 500 to 4000 Hz (r ³ 0.96) with mean differences between the actual and the predicted thresholds of 6 dB (SD = 3), 4 dB (SD = 3), 4 dB (SD = 3) and 6 dB (SD = 3) for the hearing impaired group and 11dB (SD = 7), 8 dB (SD = 8), 8 dB (SD = 6) and 10 dB (SD = 7) for the normal hearing group. However, it was observed that the range of differences between the actual and the predicted thresholds were quite large reaching 34 dB for the 500 and 4000 Hz carrier frequencies. This suggests that in clinical setting, ASSR cannot predict the presence or absence of a hearing loss accurately. In general, it can be concluded that ASSR allow for an accurate prediction of behavioral thresholds within ± 10 dB in subjects with hearing impairment. However, ASSR cannot accurately predict hearing thresholds in normally hearing individuals.
    Key words: auditory steady-state response threshold, behavioral threshold, adult, normal hearing, hearing impairment
    MeSH terms: Acoustic Stimulation; Auditory Threshold
  9. Khairul Osman, Norashikin Md.Saad, Ezlan Elias, Siti Fatimah Ibrahim, Jamaludin Mohamed, Proomwichit, Proom
    MyJurnal
    A study was conducted to determine the radioprotective effects of Citrullus vulgaris on the lymphocyte sub-membrane particularly the actin layer. A total of 30 adult male Sprague-Dawley rats were divided into three equal groups of positive control, negative control and treatment. The positive and negative control groups were force fed with 40 ml/kg body weight of normal saline while the treatment group received 40 g/kg body weight of fresh juice of C. vulgaris daily. After a week the positive control and treatment groups were irradiated with 90 rad gamma radiation. Viable lymphocytes were determined using propidium iodine and acridine orange stain and observed under a fluorescent microscope. The percentage of viable lymphocytes of the treatment group (71.0%; p = 0.03) was significantly higher than the positive control group. The results showed that C. vulgaris possessed radioprotective effects because the lymphocyte actin was not damaged. The radioprotection effects could be due to the presence of antioxidants in C. vulgaris.
    MeSH terms: Acridine Orange; Actins; Animals; Antioxidants; Body Weight; Coloring Agents; Gamma Rays; Health Services; Iodides; Iodine; Lymphocytes; Male; Propidium; Radiation Protection; Rats, Sprague-Dawley; Citrullus; Control Groups; Rats
  10. Shazli Ezzat Ghazali, Noor Aini Mohd Yusoff, Ponnusamy, S., Syahiza Abas
    MyJurnal
    Perkembangan kognitif dan pertumbuhan fizikal di kalangan kanak-kanak bergantung kepada status pemakanan mereka, termasuklah tabiat pengambilan sarapan pagi. Objektif kajian ini adalah untuk melihat pengaruh pengambilan sarapan pagi sebelum ke sekolah ke atas pencapaian kognitif kanak-kanak sekolah rendah. Satu kajian hirisan lintang dijalankan di kalangan kanak-kanak sekolah rendah di bandar dan luar bandar. Subjek kajian mengandungi 165 pelajar Melayu yang berusia 10 tahun. Tiga jenis subskala daripada ujian Wechsler Wechsler Intelligence Scale For Children-III digunakan untuk mengukur tahap kognitif kanak-kanak tersebut iaitu arithmatik, pengkodan dan digit span. Hasil kajian didapati kanak-kanak yang mengambil sarapan pagi mencatatkan pencapaian yang tinggi secara signifikan dalam arithmetik (p
    MeSH terms: Ataxia Telangiectasia; Child; Extremities; Humans; Intelligence; Intelligence Tests; Wechsler Scales
  11. Moharm, Bushra Abdulkarim, Ibrahim Jantan, Santhanam, Jacinta, Jamia Azdina Jamal
    MyJurnal
    The leaf and bark oils of Cinnamomum verum J.S. Presl. were examined for their antifungal activity against 6 dermatophytes (Trichophyton rubrum, T. mentagrophytes, T. tonsurans, Microsporum canis, M. gypseum and M. audouini), one filamentous fungi (Aspergillus fumigatus) and 5 strains of yeasts (Candida albicans, Ca. glabrata, Ca. tropicalis, Ca. parapsilosis and Crytococcus neoformans) by using the broth microdilution method. The antifungal activities of 4 standard compounds (cinnamaldehyde, eugenol, linalool and a-terpineol) which were major constituents in the oils were also investigated in an effort to correlate the effectiveness of the oils with those of the components of the oils. The combined antifungal effect of the oils against M. canis, M. gypseum and Cr. neoformans was investigated by the checkerboard assay. Isobolograms were constructed and Fractional Inhibitory Concentrations Index (FICI) were calculated to determine the combination effects between the oils. The chemical composition of the oils was analyzed by gas chromatography (GC) and gas chromatography- mass spectrometry (GC-MS). The oils showed strong activity against all the tested fungi with Minimum Inhibition Concentration (MIC) values ranging from 0.04 to 0.31 mg/ml. Cinnamaldehyde which was the most abundant component of the bark oil of C. verum showed the strongest activity against all the fungi studied. Based on the results of the assay on standard samples, it may be that the high levels of cinnamaldehyde and eugenol in the oils and in combination with the minor components could be responsible for the high antifungal activity of the oils. The antifungal effect of the leaf and bark oils of C. verum in combination against the tested fungi was not synergistic. However, the effect was additive against M. gypseum and antagonistic against Cr. neoformans and M. canis.
    MeSH terms: Acrolein; Antifungal Agents; Aspergillus fumigatus; Candida albicans; Chromatography, Gas; Cinnamomum zeylanicum; Arthrodermataceae; Eugenol; Microsporum; Oils, Volatile; Mass Spectrometry; Trichophyton; Monoterpenes
  12. Siti Balkis Budin, Abdul Gapor Mohd Top, Wan Nazaimoon Wan Mohamud, Mokhtar Abu Bakar, Khairul Osman, Yau, Monica Swee Eng, et al.
    MyJurnal
    In this study, the effects of palm vitamin E (PV) supplementation on glycemic control and lipid profile in diabetic-induce Sprague-Dawley rats have been evaluated. Diabetes in the rats was induced by a single intravenous streptozotocin (50 mg/kg body weight). The diabetic rats were divided into two groups; supplemented with 200 mg/kg body weight/day of PV and non-supplemented with PV (No PV group). Non-diabetic rats (NDM) formed the control group and only received saline injection. After eight weeks of daily supplementation, PV significantly lowered the fasting blood glucose (FBG) and glycosylated haemoglobin (HbA1c) levels (p
    MeSH terms: Animals; Blood Glucose; Body Weight; Diabetes Mellitus, Experimental; Fasting; Hemoglobin A, Glycosylated; Injections; Lipids; Streptozocin; Vitamin E; Rats, Sprague-Dawley; Dietary Supplements; Control Groups; Rats
  13. Siti Balkis Budin, Norfadilah Rejab, Abdul Gapor Mohd Top, Wan Nazaimoon Wan Mohamud, Mokhtar Abu Bakar, Khairul Osman, et al.
    MyJurnal
    This study was conducted to evaluate the oxidative damage in diabetic mellitus induced rats. The evaluation of DNA damage was carried out by the Alkaline Comet Assay using peripheral lymphocyte cells taken from streptozotocin-induced diabetic rats (50 mg/kg) and control rats. The levels of malondealdehyde (MDA), 4-hydroxynonenal (4-HNE), fasting blood glucose (FBG) and HbA1c were also measured. All the induced diabetic rats were hyperglycemic until the end of the study with significantly higher levels of FBG and HbA1c as compared to the control rats. The results showed the percentage of tail DNA and tail moment values were also significantly higher in the diabetic induced rats. The same observations were made on the levels of plasma MDA and 4-HNE. In conclusion, this study indicated that hyperglycemic condition in diabetic induced rats could generate oxidative DNA damage.
    MeSH terms: Aldehydes; Animals; Blood Glucose; Diabetes Mellitus, Experimental; DNA; DNA Damage; Fasting; Hyperglycemia; Lymphocytes; Streptozocin; Comet Assay; Rats
  14. Rosmilah Misnan, Shahnaz Murad, Masita Arip, Noormalin Abdullah, Jamaludin Mohamed
    MyJurnal
    The objective of this study was to determine the Immunoglobulin E-binding proteins (IgE) and major allergens of Scomberomorus commerson Lacepede (Narrow-barred Spanish mackerel). Allergen extracts were obtained from uncooked and cooked fish by homogenization in phosphate-buffered saline followed by continuous extraction at 4oC or on ice. Protein profiles and IgEbinding patterns were then detected by means of sodium dodecyl polyacrylamide gel electrophoresis (SDS PAGE) and immunoblotting using sera from patients sensitized to the fish. SDS-PAGE of the uncooked fish extracts revealed 26 protein bands in the range of about 11 to >175 kD, while the cooked extracts produced fewer protein bands. Immunoblotting demonstrated 17 IgE-binding bands, ranging in molecular weight from 11 to 151 kD. Two components with molecular weight of about ~50 and 42 kD showed the highest frequency of IgE-binding (62.2 and 51.4% respectively) and were identified as the major allergens of this fish allergy. Other IgE-binding proteins including a protein at ~12 kD which was equivalent in size to parvalbumin were identified as the minor allergens.
    MeSH terms: Allergens; Animals; Carrier Proteins; Electrophoresis, Polyacrylamide Gel; Food Hypersensitivity; Humans; Ice; Immunoglobulin E; Molecular Weight; Parvalbumins; Perciformes; Phosphates; Sodium; Sodium Chloride; Immunoblotting; Galectin 3
  15. Ponnusamy, S., Shazli Ezzat Ghazali
    MyJurnal
    This paper reports a clinical case study on the effectiveness of Cognitive-Behavioral Treatment (CBT) in treating panic attack with agoraphobia in a local health psychology clinic. M.N., a 24 year old male, complained of nightmares, heart palpitations, sweating, tremors and fearful feelings for the past one and a half years. He felt anxious about going to crowded places such as bus stations, night markets, supermarkets, and mosques and being left alone in any place which he was not familiar with. This case study adopted an ABC design whereby the subject was assessed at three different phases: pre-treatment, mid-treatment and post-treatment. Four standard assessment measures were administered: Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI), Anxiety Scale of Minnesota Multiphasic Personality Inventory-2 (MMPI-2) and State-Trait Anxiety Inventory (STAI). The subject responded well to 12 sessions of intervention employed in the study based on CBT model and this could be noticed by minimal score on the entire psychological test administered. The application of behavioral and cognitive strategies became more effective due to patient’s ability to understand and also due to his cooperative behavior. He responded well to imagery exposure and in-vivo gradual exposure and successfully went to shopping malls, used lifts at Kuala Lumpur Tower, went to night markets and used public transport.
    MeSH terms: Agoraphobia; Anxiety; Anxiety Disorders; Behavioral Medicine; Cooperative Behavior; Depression; Dreams; Humans; Male; MMPI; Sweating; Tremor; Cognitive Therapy; Panic Disorder
  16. Norhani Mohidin, Saadah Mohd Akhir, Bariah Mohd Ali, Zainora Mohammed, Sharanjeet, K., Chung, K.M.
    MyJurnal
    A vision screening study was carried out among Indian schoolchildren around Kuala Lumpur to determine whether the prevalence of myopia was higher in boys or girls. Altogether 749 students (49.7% boys and 50.3% girls) aged 7-18 years were screened and their refractive error examined using retinoscopy without cycloplegia. For the right eye 15.1% of the girls' eyes were found to be myopic as compared to 16.9% of the boys, of which chi-square showed no significant difference (p = 0.44). For the left eye 18.8% of the girls' eyes were myopic as compared to 16.4% of the boys. Chi square also showed no significant difference (p = 0.26). When high myopia (> -6.00D) was considered, there was no difference found between boys and girls. The number of students with high myopia greater than -6.00D was also very small (0.3%-0.5%). In conclusion, it was found that there was no significant difference in myopia between girls and boys among Indian schoolchildren.
    MeSH terms: Eye; Myopia; Paralysis; Refractive Errors; Students; Vision Screening; Prevalence; Retinoscopy
  17. Ahmad Nazlim Yusoff, Mohd Harith Hashim, Mohd Mahadir Ayob, Iskandar Kassim
    MyJurnal
    Kajian garis pangkal pengimejan resonans magnet kefungsian (fMRI) telah dijalankan di Jabatan Radiologi, Hospital Universiti Kebangsaan Malaysia ke atas seorang subjek lelaki sihat berumur 25 tahun menggunakan sistem pengimejan resonans magnet (MRI) 1.5 T. Kajian ini menggunakan gerakan jari tangan kanan dan kiri untuk merangsang aktiviti neuron di dalam korteks serebrum. Subjek diarahkan supaya menekan jari-jari pada ibu jari secara bergilir-gilir semasa imbasan kefungsian dilakukan. Paradigma 5 kitar aktifrehat digunakan dengan setiap kitar masing-masing mengandungi 20 siri pengukuran. Keputusan menunjukkan bahawa rantau otak yang aktif akibat gerakan jari adalah girus presentral merangkumi kawasan motor primer. Pengaktifan otak adalah secara kontralateral terhadap gerakan jari tangan kanan dan kiri. Keamatan isyarat keadaan aktif didapati lebih tinggi daripada keamatan isyarat keadaan rehat. Analisis yang dilakukan ke atas beberapa rantau pengaktifan yang diminati (ROI) pada beberapa hirisan menunjukkan perbezaan yang bererti (p < 0.05) antara keamatan keadaan aktif dan rehat untuk nilai ambang statistik (Z) = 1.0 dan 1.5. Perbezaan purata antara kedua-dua purata keamatan isyarat keadaan aktif dan rehat pada manamana hirisan untuk kedua-dua nilai Z menunjukkan magnitud pengaktifan yang lebih tinggi pada hemisfera kanan otak iaitu apabila subjek menggerakkan tangan kirinya. Bilangan voksel yang aktif juga didapati lebih tinggi pada hemisfera kanan berbanding pada hemisfera kiri otak. Keputusan ini menyokong fakta bahawa bagi subjek yang tidak kidal, kawasan pengaktifan motor pada hemisfera kanan otak semasa gerakan jari tangan kiri mengalami rangsangan hemodinamik yang lebih tinggi berbanding dengan hemisfera kiri otak semasa gerakan jari tangan kanan. Fenomena rangsangan hemodinamik yang diperhatikan dalam kajian ini dibincangkan berdasarkan kepada kebergantungan kontras isyarat kepada aras oksigen darah (BOLD).
    MeSH terms: Ataxia Telangiectasia; Magnetic Resonance Imaging; Malaysia; Neurons; DNA Primers; Magnets
  18. Haliza Abdul Mutalib, Saleha Abdul Majid, Mohamed Kamel bin Abdul Ghani, Anisah Nordin, Yusof Suboh, Norhayati Moktar
    MyJurnal
    Tujuan kajian ini adalah untuk mengenal pasti punca insidens tinggi infeksi Acanthamoeba di kalangan pemakai kanta sentuh di Kuala Lumpur. Satu ratus tujuh puluh empat sampel diambil dari 66 subjek pemakai kanta sentuh lembut jenis pakaibuang dan mereka juga disoal dengan menggunakan borang kaji selidik. Kesemua pemakai kanta sentuh menggunakan pelbagai jenis larutan disinfeksi atau larutan pelbagai guna untuk membersih dan mendisinfeksi kanta sentuh. Swab diambil dari kanta sentuh yang masih dipakai, bekas kanta sentuh dan juga larutan disinfeksi yang sedang digunakan. Daripada swab ini proses pengkulturan yang lengkap dilakukan untuk pemencilan Acanthamoeba spp. Pemencilan Acanthamoeba spp. daripada 14 sampel daripada 7 subjek telah berjaya dilakukan. Hasil pemencilan yang tinggi adalah daripada bekas kanta sentuh (13.5%) dan kanta sentuh subjek (10.6%). Walau bagaimanapun tiada sebarang pemencilan didapati daripada larutan disinfeksi. Punca infeksi Acanthamoeba adalah dari bekas simpanan kanta sentuh dan kanta sentuh yang dipakai. Kaji selidik menunjukkan peratusan tidak komplain yang tinggi di kalangan pemakai kanta sentuh kerana ramai menggunakan air paip untuk mencuci kanta sentuh dan bekasnya.
    MeSH terms: Acanthamoeba; Animals; Transcription Factors; Adaptor Proteins, Signal Transducing; Gastropoda
  19. Mohd Cairul Iqbal Mohd Amin, Widianingsih
    MyJurnal
    Tujuan kajian ini adalah untuk menilai sifat-sifat fizikokimia Radix Glycyrrhizae sebagai bahan eksipien untuk pembuatan tablet dengan kaedah pemampatan terus dan membandingkannya dengan eksipien komersil iaitu laktosa, selulosa mikrohablur (MCC) dan kalsium laktat pentahidrat (Puracal). Saiz partikel untuk semua sampel yang digunakan dalam kajian ini dihadkan pada 200-250µm. Hasil imbasan elektron mikroskop menunjukkan partikel Radix Glycyrrhizae mempunyai kepelbagaian saiz dan bentuk yang tidak seragam seperti laktosa berbanding MCC yang lebih bersifat jejarum dan Puracal yang bersifat sfera dan poros. Keupayaan sampel untuk dimampatkan, ketumpatan partikel sampel, kesan kelembapan ke atas tegasan pengenduran dan keliangan tablet diuji serta dibandingkan dengan eksipien komersil yang lain. Sifat ikatan dari sampel Radix Glycyrrhizae ini pula dikaji dengan menghitung kekuatan tegangan melalui kaedah pemampatan diametral dan turut dilakukan perbandingan. Radix Rlycyrrhizae memiliki ketumpatan sebenar serbuk iaitu 1.5746 g/cc manakala laktosa, selulosa mikrohablur dan kalsium laktat pentahidrat masing-masing 1.5476, 1.6654 dan 1.3506 g/cc. Radix Rlycyrrhizae juga di dapati mempunyai daya ketermampatan yang sederhana sebagaimana laktosa berbanding Puracal dan MCC yang jauh lebih baik sifatnya. Kajian kesan kelembapan menunjukkan kekuatan tablet Radix Glycyrrhizae, Puracal, laktosa dan MCC dipengaruhi perubahan suhu. Hasil kajian analisis Heckel pula menunjukkan bahawa Radix Glycyrrhizae bersifat aliran plastik sebagaimana MCC manakala laktosa dan Puracal lebih bersifat rapuh. Keputusan ujian ke atas sifat pemampatan dan pemadatan mendapati bahawa Radix Kesimpulannya, Radix Glycyrrhizae boleh digunakan sebagai eksipien dalam pembuatan tablet melalui kaedah pemampatan terus dan ciriciri fisikokimianya sebagai eksipien adalah setanding dengan eksipien komersial.
    MeSH terms: Glycyrrhiza; Tablets; Plant Roots
  20. Bariah Mohd Ali, Goh, E.H.
    MyJurnal
    The objective of this study was to determine the efficiency of UV blocking monomers in contact lenses in providing eye protection from UV radiation. The spectral transmission of 8 contact lenses (7 soft contact lenses: Precision UV, Acuvue 2, Surevue, Omega, Encore UV, Durasoft 3 and Lunelle UV and 1 rigid gas permeable contact lens: Boston 7) was evaluated by using a dual beam spectrophotometer. Durasoft 3, a non UV absorbent contact lens was used as the control. The results showed that Precision UV contact lens absorbed UV light up to wavelength of 380 nm, whereas Acuvue 2 and Surevue absorbed up to 360 nm only. Omega, Encore UV and Lunelle UV lenses absorbed UV light up to 335 nm with spectral transmission of Lunelle UV being the highest among all soft contact lenses tested, which was 17%. Boston 7 could absorb UV light up to 385 nm, but the amount of UV light transmitted was higher than soft lenses, which was 30%. Durasoft 3 only blocked UV light at 200-245 nm. Precision UV lens had better UV blocker characteristics than the other contact lenses tested. UV blocking soft contact lenses could be an alternative for spectacles in protecting internal ocular structures from UV radiation.
    MeSH terms: Boston; Contact Lenses, Hydrophilic; Estradiol; Eyeglasses; Lens, Crystalline; Ultraviolet Rays; Medroxyprogesterone Acetate
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