MyMedR

Fulltext Reproductive function after treatment of ovarian germ cell malignancy

Abdullah NA, Rushdan MN

Med J Malaysia, 2012 Feb;67(1):71-6.

This study was undertaken to evaluate the reproductive and oncologic outcomes of patients diagnosed with Ovarian Germ Cell Malignancy (OGCM) who underwent fertility preserving surgery and adjuvant chemotherapy treated in Gynaecology Oncology Unit, Sultanah Bahiyah Hospital, Kedah, Malaysia.

Periodical gait asymmetry assessment using real-time wireless gyroscopes gait monitoring system

Gouwanda D, Senanayake SM

J Med Eng Technol, 2011 Nov;35(8):432-40.

PMID: 22074136 DOI: 10.3109/03091902.2011.627080

A real-time gait monitoring system that incorporates an immediate and periodical assessment of gait asymmetry is described. This system was designed for gait analysis and rehabilitation of patients with pathologic gait. It employs wireless gyroscopes to measure the angular rate of the thigh and shank in real time. Cross-correlation of the lower extremity (Cc(norm)), and normalized Symmetry Index (SI(norm)) are implemented as new approaches to periodically determine the gait asymmetry in each gait cycle. Cc(norm) evaluates the signal patterns measured by wireless gyroscopes in each gait cycle. SI(norm) determines the movement differences between the left and right limb. An experimental study was conducted to examine the viability of these methods. Artificial asymmetrical gait was simulated by placing a load on one side of the limbs. Results showed that there were significant differences between the normal gait and asymmetrical gait (p < 0.01). They also indicated that the system worked well in periodically assessing the gait asymmetry.

Fulltext Association of variable number of tandem repeats polymorphism in the IL-4 gene with end-stage renal disease in Malaysian patients

Vasudevan R, Norhasniza MN, Patimah I

Genet. Mol. Res., 2011;10(2):943-7.

PMID: 21644211 DOI: 10.4238/vol10-2gmr1066

Variable number of tandem repeats (VNTR) polymorphism in the interleukin 4 (IL-4) gene has been associated with end-stage renal disease (ESRD) subjects in many different populations, although with conflicting results. We determined the 70 bp of VNTR polymorphism at intron 3 of the IL-4 gene in Malaysian ESRD subjects. Buccal cells were collected from 160 case and 160 control subjects; genomic DNA was amplified using PCR, followed by agarose gel electrophoresis. There were significant differences in genotypes and alleles of the IL-4 gene. We conclude that VNTR polymorphism of the IL-4 gene is a risk factor for the development of ESRD among Malaysians.

Effect of preculture, pvs2 and vitamin C on survival of recalcitrant Nephelium ramboutan-ake shoot tips after cryopreservation by vitrification

Chua SP, Normah MN

Cryo Letters, 2011 Nov-Dec;32(6):506-15.

PMID: 22227711

This paper reports the cryopreservation of Nephelium ramboutan-ake shoot tips derived from in vitro shoot multiplication and in vitro seed germination using vitrification. Preculture with either 0.5 M sucrose for 2 days or a combination of 0.3 M sucrose and 0.5 M glycerol for 3 days enhanced dehydration tolerance and resulted in the highest survival of shoot tips; however, none of the shoot tips withstood liquid nitrogen (LN) exposure. The use of a lower temperature (0 degree C) during exposure to plant vitrification solution (PVS2) led to higher survival of shoot tips, compared to exposure at 25 degree C. The survival percentage of shoot tips exposed to PVS2 for up to 20 min at 0°C was 83.3 percent. It was only 53.3 percent when shoot tips were exposed to PVS2 at 25 degree C for 5 min. The importance of vitamin C for reducing oxidative stress in shoots tips was demonstrated. The addition of 0.28 mM vitamin C during critical steps of the vitrification process resulted in a high survival (96.7 percent) without LN exposure, compared to 73.3 percent for shoot tips not treated with vitamin C. Moreover, 3.3 percent shoot tips withstood LN exposure when vitamin C was added during the loading step. This result suggests that cryopreservation is possible for this tropical, recalcitrant seeded tree species.

Identifying gait asymmetry using gyroscopes--a cross-correlation and Normalized Symmetry Index approach

Gouwanda D, Senanayake SM

J Biomech, 2011 Mar 15;44(5):972-8.

PMID: 21306714 DOI: 10.1016/j.jbiomech.2010.12.013

Injury to a lower limb may disrupt natural walking and cause asymmetrical gait, therefore assessing the gait asymmetry has become one of the important procedures in gait analysis. This paper proposes the use of wireless gyroscopes as a new instrument to determine gait asymmetry. It also introduces two novel approaches: normalized cross-correlations (Cc(norm)) and Normalized Symmetry Index (SI(norm)). Cc(norm) evaluates the waveform patterns generated by the lower limb in each gait cycle. SI(norm) provides indications on the timing and magnitude of the bilateral differences between the limbs while addressing the drawbacks of the conventional methods. One-way ANOVA test reveals that Cc(norm) can be considered as single value indicator that determines the gait asymmetry (p<0.01). The experiment results showed that SI(norm) in asymmetrical gait were different from normal gait. SI(norm) in asymmetrical gait were found to be approximately 20% greater than SI(norm) in normal gait during pre-swing and initial swing.

A computational method for reliable gait event detection and abnormality detection for feedback in rehabilitation

Senanayake C, Senanayake SM

Comput Methods Biomech Biomed Engin, 2011 Oct;14(10):863-74.

PMID: 20924859 DOI: 10.1080/10255842.2010.499866

In this paper, a gait event detection algorithm is presented that uses computer intelligence (fuzzy logic) to identify seven gait phases in walking gait. Two inertial measurement units and four force-sensitive resistors were used to obtain knee angle and foot pressure patterns, respectively. Fuzzy logic is used to address the complexity in distinguishing gait phases based on discrete events. A novel application of the seven-dimensional vector analysis method to estimate the amount of abnormalities detected was also investigated based on the two gait parameters. Experiments were carried out to validate the application of the two proposed algorithms to provide accurate feedback in rehabilitation. The algorithm responses were tested for two cases, normal and abnormal gait. The large amount of data required for reliable gait-phase detection necessitate the utilisation of computer methods to store and manage the data. Therefore, a database management system and an interactive graphical user interface were developed for the utilisation of the overall system in a clinical environment.

Fulltext Simultaneous dislocation of the metacarpophalangeal and subluxation of the carpometacarpal joints of the thumb in a child

Rashdeen FMN, Manohar A, Pathmanathan V

Med J Malaysia, 2005 Jul;60 Suppl C:117-8.

PMID: 16381297

Double dislocations of joints of the thumb are uncommon injuries. We report an unusual case of simultaneous dislocation of the metacarpophalangeal (MCP) and subluxation of the carpometacarpal (CMC) joints of the thumb in a child to illustrate problems related to their treatment.

Fulltext Do adolescents attending Bandar Mas primary care clinic consult health professionals for their common health problems?

Khairani O, Zaiton S, Faridah MN

Med J Malaysia, 2005 Jun;60(2):134-9.

PMID: 16114152

The aims of the study were to determine the prevalence of the common health problems namely acne, overweight, smoking and depressive symptoms among adolescents attending a primary healthcare clinic, whether they seek treatment for these problems and the reasons for not consulting health professionals. It was a clinic-based, crosssectional study. All adolescents aged 13 to 20 years who attended the clinic during the study period were included in the study. The respondents were given self-administered questionnaires and their weights were measured to assess if they had the above disorders. A total of 215 adolescents were included in the study. The proportion of adolescents who had acne were 70.7%, overweight 8.9%, smoking 41.9% and depressive symptoms 9.8%. Only 25% of those who had acne, 47% of those who were overweight, 9.5% who had depressive symptoms and none of those who smoked had ever sought treatment for these problems. The common reasons given for not consulting the health professionals were 'did not consider it as a problem', 'shy' and 'thought there was no treatment available'. The majority of the adolescents who attended the clinic did not consult health professionals the above common health problems. It is important to educate them on these disorders and encourage health-seeking behaviour in adolescents.

Comparative histamine levels in antemortem and postmortem wounds in the human skin by fluorescence spectrophotometry

Faridah MN, Shahrom AW

Malays J Pathol, 2001 Dec;23(2):111-4.

PMID: 12166591

This paper describes a modified method of quantitative determination of histamine in human skin wounds using fluorescence spectrophotometer. In this study, histamine was used as an indicator to differentiate antemortem from postmortem wounds. Skin samples were obtained from 20 corpses which were brought to Hospital Kuala Lumpur and Universiti Kebangsaan Malaysia for medicolegal autopsy. Sections of human skin were processed biochemically for histamine determination using fluorescence spectrophotometer. Results revealed no significant difference in the histamine content of the antemortem wounds in comparison to postmortem wounds. Based on these results, detection of histamine is not suitable to differentiate antemortem from postmortem wounds.

Fulltext Osteosarcoma in a sixteen-month old boy

Ibrahim S, Sundari MN, Masir N

Med J Malaysia, 1999 Jun;54(2):261-3.

PMID: 10972039

We report a case of a sixteen-month old boy with osteosarcoma of the left humerus. To the best of our knowledge this is the youngest case reported in Malaysia. This case illustrates that osteosarcoma although rare does occur in a very young child. The child died six weeks after presentation due to disseminated disease.

Fulltext Prevalence of hypertension among Chinese elderly and its relationship to behavioural and nutritional factors

Teo GS, Idris MN

Med J Malaysia, 1996 Mar;51(1):33-40.

PMID: 10967977

A cross-sectional study was carried out to determine the prevalence of hypertension in the Chinese elderly and to examine its relationship with various behavioural and nutritional risk factors. This study involved 243 Chinese aged 55 years and older in 2 randomly selected Chinese Villages in Seberang Prai Tengah, Penang. The study included an interview, anthropometric assessment and blood pressure measurement. The prevalence of hypertension was 48.1% and out of this, 65 (55.6%) were on anti-hypertensive treatment. There was a significant rise in the prevalence with age. Hypertension was found to be inversely related to per capita income and physical activity (p < 0.05). Hypertension was significantly more common in smokers than non-smokers. Alcohol intake in the elderly was low and not related to hypertension. Obesity was significantly associated with hypertension only among the elderly aged 55-64 years. The dietary intake of sodium, potassium and calcium did not differ significantly between the hypertensive and normotensive elderly.

Purification and characterization of two acidic phospholipase A2 enzymes from king cobra (Ophiophagus hannah) snake venom

Tan NH, Saifuddin MN

Int. J. Biochem., 1990;22(5):481-7.

PMID: 2347427

1. The two major phospholipase A2 enzymes (OHPLA-DE1 and OHPLA-DE2) of king cobra (Ophiophagus hannah) venom have been purified to electrophoretic homogeneity. 2. The isoelectric points of OHPLA-DE1 and OHPLA-DE2 were 3.81 and 3.89, respectively and the Mws were 14,000 and 15,000, respectively, as estimated by Sephadex G-75 gel filtration chromatography; and 14,000 as estimated by SDS-PAGE. 3. The enzymes were not lethal to mice at a dosage of 10 micrograms/g body wt by i.v. route. Both phospholipase A2 enzymes, however, exhibited moderate edema-inducing and anti-coagulant activities. 4. Bromophenacylation of the enzymes reduced the enzymatic activity drastically but did not affect the edema-inducing activity of the enzymes.

Isolation and characterization of an unusual form of L-amino acid oxidase from King cobra (Ophiophagus hannah) venom

Tan NH, Saifuddin MN

Biochem. Int., 1989 Oct;19(4):937-44.

PMID: 2619759

The L-amino acid oxidase (EC 1. 4. 3. 2) from King cobra (Ophiophagus hannah) venom was purified to electrophoretic homogeneity. The molecular weight of the enzyme was determined to be 140000 when examined by gel filtration and 68000 by SDS-polyacrylamide gel electrophoresis. The enzyme had an isoelectric point of 4.5 and an intravenous LD50 of 5 micrograms/g in mice. It is a glycoprotein and contains two moles of FAD per mole of enzyme. The enzyme exhibited unusual thermal stability and unlike most other venom L-amino acid oxidases, it was stable in alkaline solution and was not inactivated by freezing.

Multiple external root resorption

Yusof WZ, Ghazali MN

J Am Dent Assoc, 1989 Apr;118(4):453-5.

PMID: 2708724

Presented is an unusual case of multiple external root resorption. Although the cause of this resorption was not determined, several possibilities are presented. Trauma from occlusion, periodontal and pulpal inflammation, and resorption of idiopathic origin are all discussed as possible causes.

Substrate specificity of king cobra (Ophiophagus hannah) venom L-amino acid oxidase

Tan NH, Saifuddin MN

Int. J. Biochem., 1991;23(3):323-7.

PMID: 2044840

1. Substrate specificity of purified king cobra (Ophiophagus hannah) venom L-amino acid oxidase was investigated. 2. The enzyme was highly specific for the L-enantiomer of amino acid. Effective oxidation of L-amino acid by the enzyme requires the presence of a free primary alpha-amino group but the alpha-carboxylate group is not as critical for the catalysis. 3. The enzyme was very active against L-Lys, L-Phe, L-Leu, L-Tyr, L-Tryp, L-Arg, L-Met, L-ornithine, L-norleucine and L-norvaline and moderately active against L-His, L-cystine and L-Ileu. Other L-amino acids were oxidized slowly or not oxidized. 4. The data suggest the presence of a side chain binding site in the enzyme, and that the binding site comprises at least five 'subsites': the hydrophobic subsites a, b and c; and the two 'amino' binding subsites d and e. Subsite b appears to be able to accommodate two methylene/methyl carbons.

Multiple impacted supernumerary teeth

Yusof WZ, Awang MN

Oral Surg. Oral Med. Oral Pathol., 1990 Jul;70(1):126.

PMID: 2371041

Comparative study of the edema-inducing activity of snake venoms

Tan NH, Saifuddin MN

Comp Biochem Physiol C Comp Pharmacol Toxicol, 1990;97(2):293-6.

PMID: 1982873

1. The edema-inducing activity of 24 venoms from snakes of the subfamilies of Elapinae, Hydrophiini, Crotalinae and Viperinae was determined. 2. All snake venoms tested are very potent edema inducers. The minimum edema doses of the venoms ranged from 0.16 to 3.41 micrograms per mouse paw. 3. The venoms induced a rapid onset edema which peaked within 1 h of injection and declined thereafter; at low dose, however, some venoms induced a rapid onset edema that sustained over a longer duration.

Correction to: A Clinical Approach to Diagnosing Trigger Wrist

Arumugam M, Sallehuddin H, Rashdeen FMN

Indian J Orthop, 2021 Apr;55(2):498.

PMID: 33939777 DOI: 10.1007/s43465-020-00314-0

[This corrects the article DOI: 10.1007/s43465-020-00248-7.].

Does Dehydroepiandrosterone (DHEA) improve in vitro fertilisation (IVF) outcomes in poor responders?

Malini MN, Zain MM

Med J Malaysia, 2020 01;75(1):24-28.

PMID: 32008015

BACKGROUND: In reproductive medicine poor ovarian response (POR) among women undergoing in vitro fertilisation (IVF) is of great concern. Meta-analysis showed that Dehydroepiandrosterone (DHEA) administration resulted in a significant increase in the number of oocytes retrieved in women with POR. The aim of this study was to assess the effectiveness of DHEA supplementation on IVF outcomes among poor responders undergoing IVF.

METHODS: Sixteen patients who were diagnosed with POR scheduled to undergo their second cycle of Intracytoplasmic sperm injection (ICSI)/embryo transfer cycle were enrolled. All enrolled patients had earlier undergone their first ICSI/embryo transfer cycle at least four months prior to this study. All subjects were given DHEA supplementation of 25mg three times daily for at least three months prior to their second ICSI/embryo transfer cycle. Statistical analysis of various ovarian response and ICSI outcomes parameter were compared pre and post DHEA.

RESULTS: Sixteen women with the mean age of 35 years were enrolled in the study. The comparative analysis of results showed a significant increase in the number of good quality of embryos obtained (p<0.05). After the treatment with DHEA, there was an improvement in the number of oocytes retrieved, Metaphase II (MII) oocyte (mature) oocytes obtained, fertilised and transferrable embryos and the pregnancy rate. There was no significant effect of DHEA treatment on the number of days of stimulation and cumulative dose of gonadotrophins used.

CONCLUSION: Our results is able to show that DHEA supplementation may help to enhance IVF-ICSI outcomes in women with POR especially in those age 35 years and below.

Fulltext Daily energy intake, energy expenditure and activity patterns of selected Malaysian sportsmen

Ismail MN, Wannudri W, Zawiah H

Malays J Nutr, 1995 Sep;1(2):141-9.

PMID: 22692059 MyJurnal

Seventeen members of the national sepaktakraw squad undergoing centralised training participated in a comprehensive study to determine their daily food intake, activity patterns and energy requirements. Food intake was recorded as a mean of 3-days weighed food intake and the nutrient contents were calculated using a local food composition table. The energy cost of standardised activities was determined by indirect calorimetry while time and motion study was used to estimate the daily energy expenditure of each subject. The mean daily energy intake was 2784±373 kcal (11.6±1.6 MJ) while the mean daily energy expenditure was 3004±298 kcal (12.6±1.2 MJ), with a negative energy balance of 220 kcal ((0.9 MJ). Intake of other nutrients were adequate when compared with the Malaysian RDA, with the exception of niacin. The results of the activity pattern study indicated that the subjects spent about 80% of the day doing light activities while 20% of the day was devoted to their training programme comprising of moderate to heavy activities. This data set represents the first of its kind in Malaysia and should provide impetus for further research in this area which would help establish dietary guidelines for Malaysian sportsmen.

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