1.A summary of the Malaysian Clinical Practice Guidelines on the management of postmenopausal osteoporosis, 2022
Terence Ing WEI ONG ; Lee Ling LIM ; Siew Pheng CHAN ; Winnie Siew SWEE CHEE ; Alan Swee HOCK CH’NG ; Elizabeth GAR MIT CHONG ; Premitha DAMODARAN ; Fen Lee HEW ; Luqman bin IBRAHIM ; Hui Min KHOR ; Pauline Siew MEI LAI ; Joon Kiong LEE ; Ai Lee LIM ; Boon Ping LIM ; Sharmila Sunita PARAMASIVAM ; Jeyakantha RATNASINGAM ; Yew Siong SIOW ; Alexander Tong BOON TAN ; Nagammai THIAGARAJAN ; Swan Sim YEAP
Osteoporosis and Sarcopenia 2023;9(2):60-69
Objectives:
The aim of these Clinical Practice Guidelines is to provide evidence-based recommendations to assist healthcare providers in the screening, diagnosis and management of patients with postmenopausal osteoporosis (OP).
Methods:
A list of key clinical questions on the assessment, diagnosis and treatment of OP was formulated. A literature search using the PubMed, Medline, Cochrane Databases of Systematic Reviews, and OVID electronic databases identified all relevant articles on OP based on the key clinical questions, from 2014 onwards, to update from the 2015 edition. The articles were graded using the SIGN50 format. For each statement, studies with the highest level of evidence were used to frame the recommendation.
Results:
This article summarizes the diagnostic and treatment pathways for postmenopausal OP. Risk stratification of patients with OP encompasses clinical risk factors, bone mineral density measurements and FRAX risk estimates. Non-pharmacological measures including adequate calcium and vitamin D, regular exercise and falls prevention are recommended. Pharmacological measures depend on patients’ fracture risk status. Very high-risk individuals are recommended for treatment with an anabolic agent, if available, followed by an anti-resorptive agent. Alternatively, parenteral anti-resorptive agents can be used. High-risk individuals should be treated with anti-resorptive agents. In low-risk individuals, menopausal hormone replacement or selective estrogen receptor modulators can be used, if indicated. Patients should be assessed regularly to monitor treatment response and treatment adjusted, as appropriate.
Conclusions
The pathways for the management of postmenopausal OP in Malaysia have been updated. Incorporation of fracture risk stratification can guide appropriate treatment.
2.A potential mating-type biomarker to detect pathogenic Ganoderma species
Doris Lau ; Lee Weng Wah ; Chong Mei Ling ; Tee Sue Sean ; Jonathan Guyang Ling ; Anis Farhan Fatimi Ab Wahab ; Farah Diba Abu Bakar
Malaysian Journal of Microbiology 2022;18(3):331-337
Aims:
The basal stem rot disease in oil palm is caused by the pathogenic Ganoderma boninense, which is infectious after mating and forming dikaryotic hyphae. This study was aimed to generate a mating-type biomarker for the detection of pathogenic Ganoderma species.
Methodology and results:
Mating-type region of Ganoderma was amplified using polymerase chain reaction (PCR) and primers flanking the mating-type region of other basidiomycetes. Amplified fragments were sequenced and were identified as the Ganoderma pheromone receptor gene of matB locus called the gprb2 gene. Using this biomarker, the pheromone receptor gene was detected in a total of 107 pathogenic Ganoderma spp. while the gene was not detected in the non-pathogenic Ganoderma lucidum. Phylogenetic tree analyses of the gene fragment encoding the partial amino acid sequence of gprb2 showed clades of close evolutionary relationship among the 107 pathogenic Ganoderma spp. Phylogenetic analyses using deduced amino acid sequences of the Ganoderma pheromone receptor b2 gene, gprb2 with homologous pheromone receptors of other basidiomycetous fungi revealed high conservation of this pheromone receptor within their respective taxonomy.
Conclusion, significance and impact of study
A potential mating-type biomarker was successfully identified that could detect pathogenic Ganoderma spp. The research findings will be helpful in oil palm screening to detect pathogenic Ganoderma spp. and gain further insight into the role of the mating-type loci of Ganoderma towards its pathogenesis in causing the basal stem rot disease of oil palm.
Genes, Mating Type, Fungal
;
Ganoderma
3.A review of child sexual abuse cases presenting to a paediatric emergency department.
Magdalene H M LEE ; Sashikumar GANAPATHY ; Soo Mei LOW ; Christine L Q CHUA ; Shu Ling CHONG ; Eric MA ; Peter C Y WONG
Annals of the Academy of Medicine, Singapore 2021;50(7):527-535
INTRODUCTION:
Child sexual abuse (CSA) adversely affects a child's growth and well-being. This study aimed to describe the profile of children presenting to a tertiary paediatric emergency department(ED) with CSA.
METHODS:
Children 0-16 years old presenting to KK Women's and Children's Hospital ED from June 2016 to August 2020 with sexual abuse were retrospectively reviewed. We performed a secondary analysis on girls and stratified them by age <13 and ≥13 years old.
RESULTS:
There were 790 patients who made 833 visits for CSA. Victims were predominantly girls (747, 94.8%) and perpetrators were predominantly men (763, 96.6%). The abuse first occurred before the age of 13 years in 315 victims (39.9%). For 468 (59.2%), more than one incident occurred before presentation. Compared to girls ≥13 years old, girls <13 years old were more frequently abused by a family member (47.7% versus 8.0%,
CONCLUSION
The findings highlight common characteristics of CSA cases, and can aid the future identification and protection of vulnerable children. The fact that most children presented after more than one incident suggests the need to more closely monitor and protect potentially at-risk children.
Adolescent
;
Child
;
Child Abuse
;
Child Abuse, Sexual
;
Child, Preschool
;
Emergency Service, Hospital
;
Female
;
Humans
;
Infant
;
Infant, Newborn
;
Male
;
Parents
;
Retrospective Studies
4.Cerebral venous thrombosis in multi-ethnic patients from Malaysia
Mei-Ling Sharon TAI ; Khairul Azmi Abdul KADIR ; Chong Tin TAN ; Kay Sin TAN
Neurology Asia 2020;25(2):127-138
Background & Objectives: The literature on cerebral venous thrombosis (CVT) in South East Asia is
limited. The objectives were to evaluate the clinical profile, predisposing factors and clinical outcome
of the CVT patients in Malaysia. Methods: We conducted a retrospective descriptive study of the CVT
patients admitted to the neurology ward. The clinical presentation, predisposing factors, radiological
findings, treatment and prognostic characteristics were evaluated from the charts. Clinical outcome
on discharge and six months was measured by Modified Rankin Scale (mRS) scores. Poor outcome
and good outcome was defined as Modified Rankin Scale (mRS) scores of 3-6 and 0-2 respectively.
Results: Forty nine CVT patients who presented between 2007 and 2017 were recruited. The mean age
was 43.51±16.52. The patients consisted of 39 Malaysians (13 Indians, 12 Malays, 12 Chinese, one
Iban, one Eurasian descent), and ten non-Malaysians. Thirty (61.2%) patients were women. The most
common presenting complaint was headache (75.5%). Six percent had multiple risk factors, whereas
51% had idiopathic CVT. The most common predisposing factors were oral contraceptive pill use
(18.4%), followed by infection (12.2%), especially central nervous system (CNS) infection (6.1%);
11.8% had prothrombotic disorder. The most common location for CVT was superior sagittal sinus
(83.7%). On neuroimaging, 77.6% had parenchymal lesions, 53.1% had venous infarcts and 38.8% had intracerebral haemorrhage, one patient had CVT complicated by rare venous collateral channels. Poor outcome on discharge and at six months was 38.8% and 33.3% respectively. On univariate analysis, female gender (p=0.002), seizures (p=0.037) and cerebral oedema (p=0.018) were associated with poor functional outcome. On binary logistic regression, female gender (OR=14.50, 95% CI 2.10-99.94,p=0.003) and seizures (OR=6.54, 95% CI 1.33-32.07, p=0.017) were associated with poor outcome.
Conclusion: The CVT patients in this study had a higher proportion of CNS infections. Poor outcome
was independently associated with female gender and seizures.
5.Complementary and alternative medicine for migraine and tension-type headache among the Malaysians
Mei-Ling Sharon TAI ; Jun Fai YAP ; Han Lim CHIN ; Chong Tin TAN ; Cheng Beh GOH
Neurology Asia 2020;25(2):153-163
Background: The literature on complementary and alternative (CAM) therapies in South East Asia
is limited. The objective of the study was to evaluate the frequencies of CAM therapies in the
Malaysian patients with migraine and tension-type headache (TTH). We also assessed the reasons for
CAM use. Methods: This was a cross-sectional study. The study was conducted in a tertiary hospital
in Malaysia. Consecutive patients presenting with migraine and TTH to the neurology clinic were
recruited. Demographic characteristics were documented. Data on CAM use, including frequency and
the reasons was collected. Results: Six hundred and eighty five patients (365 TTH and 320 migraine)
were recruited. They consisted of 305 (44.5%) Malay, 174 (25.4%) Chinese, 169 (24.7%) Indian
and 37 (5.4%) patients from other ethnic groups. A total of 478 (69.8%) patients, comprising 266
(55.6%) patients with TTH and 212 (44.4%) patients with migraine used CAM therapies. The most
commonly used CAM therapies were medicated oil (355 patients, 51.8%) and massage (246 patients,
35.9%). The most common reasons for CAM use were reduction of pain (47.7 %), stress reduction
(34.9%), and “cooling” effect (27.4%). Thirteen (4.1%) patients with migraine practiced reflexology,
whereas 5 (1.4%) patients with TTH practiced reflexology (p=0.032). Twenty three (7.2%) patients
with migraine took vitamin supplements compared to 13 (3.6%) patients with TTH (p=0.039). On
univariate analysis, CAM use was significantly associated with ethnic groups (p=0.014), gender
(p<0.0001), age (p=0.004), salary (p=0.014), educational level (p=0.003), and headache subtypes
(p= 0.067). On logistic regression, married women were more likely to use CAM (OR=1.864, 95%
CI 1.216-2.858, p=0.004).
Conclusion: A large number of Malaysian headache patients used CAM. The most common reasons
were reduction of pain, stress and “heatiness”. Medicated oil was most commonly used, followed by
massage. Married women were more likely to use CAM, and this was the only determinant in this study.
6.Astrocyte elevated gene-1 serves as a target of miR542 to promote glioblastoma proliferation and invasion.
Chong LI ; Hai-Long LIU ; Yu-Mei ZHOU ; Yan-Chun SHI ; Zhi-Bin ZHANG ; Ling CHEN ; Shi-Yu FENG
Chinese Medical Journal 2020;133(20):2437-2443
BACKGROUND:
Epithelial to mesenchymal transition (EMT) is strongly linked with tumor invasion and metastasis, which performs a vital role in carcinogenesis and cancer progression. Emerging evidence suggests that microRNAs (miRNAs) expression are closely associated to EMT by regulating targeted genes. MiR542 has been found to be involved in the EMT program and bound up with various cancers. However, the functions of miR542 and its underlying mechanism in glioblastoma multiforme (GBM) remain largely unknown. In the current study, we investigated the effect of astrocyte elevated gene-1 (AEG-1) on U251 cells aggressiveness, proliferation, apoptosis, and cell cycle.
METHODS:
The screening of targeted miRNAs was performed, as well as the functional roles and mechanisms of miR542 were explored.
RESULTS:
MiR542 was selected as the target because of the most significantly differential expression and this high level of expression negatively correlated with cell migration and proliferation, which suggested that miR542 could be a novel tumor suppressor. Moreover, we confirmed that AEG-1 was a direct targeted gene of miR542 by luciferase activity assay, reverse transcription-polymerase chain reaction, and immunoblotting analysis. Furthermore, miR542 suppressed the expression of AEG-1, which upgraded the level of E-cadherin and degraded Vimentin expression contributing to retraining EMT.
CONCLUSION
The in vitro findings demonstrated that miR542 inhibited the migration and proliferation of U251 cells and suppressed EMT through targeting AEG-1, indicating that miR542 may be a potential anti-cancer target for GBM.
Astrocytes
;
Cell Line, Tumor
;
Cell Movement/genetics*
;
Cell Proliferation/genetics*
;
Epithelial-Mesenchymal Transition/genetics*
;
Gene Expression Regulation, Neoplastic
;
Glioblastoma/genetics*
;
Humans
;
MicroRNAs/genetics*
;
Neoplasm Invasiveness/genetics*
7.Investigating the effect of pre-surgical orthodontic treatment on temporomandibular joint in patients with skeletal class Ⅲ malocclusion by cone-beam computed tomography.
Mei-Ling GUO ; Zhen HUANG ; Chong WANG ; Yu-Jiang WANG
West China Journal of Stomatology 2019;37(4):417-421
OBJECTIVE:
To investigate the effect of pre-surgical orthodontic treatment on temporomandibular joint (TMJ) in patients with skeletal class Ⅲ malocclusion treated with orthodontic-orthognathic surgical treatment.
METHODS:
Twenty-four patients with skeletal class Ⅲ malocclusion who underwent orthodontic-orthognathic surgical treatment were included in the study. Before and after the completion of orthodontic treatment, the symptoms of TMJ were examined and recorded, and the short- and the long-axis diameter of the condylar (d), condylar height (h), joint space (L) at different angles, bilateral condylar spacing (R), and the condylar angles were measured, with scanning performed by using cone-beam computed tomography (CBCT). Then, the changes of TMJ symptoms and bone structure at different periods were analyzed.
RESULTS:
No significant changes were observed in the joint symptoms before and after the pre-surgical orthodontic treatment. No significant changes were found in the measurements of the bone structure of TMJ in the dimensional direction (P>0.05).
CONCLUSIONS
In the orthodontic-orthognathic surgical treatment procedure, the pre-surgical orthodontic process does not have a significant effect on TMJ.
Cone-Beam Computed Tomography
;
Humans
;
Malocclusion, Angle Class II
;
Malocclusion, Angle Class III
;
Mandibular Condyle
;
Temporomandibular Joint
8.Moyamoya disease in a young woman with intraand extracranial vessels involvement on vessel wall imaging
TOH Tsun-Haw ; Kay-Sin TAN ; Norlisah RAMLI ; Kartini RAHMAT ; Chong-Tin TAN ; Kar-Foo LAU ; Mei-Ling Sharon TAI
Neurology Asia 2019;24(3):281-285
Moyamoya disease (MMD) was first described
in 1957 as “bilateral hypoplasia of internal
carotid arteries (ICAs)”.1
Aside from involving the intracranial arteries, MMD can also affect
extracranial ICAs and external carotid arteries
(ECAs).2-4 High resolution magnetic resonance
(MR) vessel wall imaging (VWI) is increasingly
being used to help with the diagnosis and
characterization of the condition focusing mainly
on intracranial vessels and extracranial ICAs.5-9
We present a case of a young woman with MMD,
demonstrating vessel wall enhancement of nonstenotic maxillary branches of bilateral ECAs.
9.A bibliometric study of the publication type and citation count of Medical Journal of Malaysia for the period 1980-2016
Cheong Lieng Teng ; Kean Ghee Lim ; Ee Ming Khoo ; Chirk Jenn Ng ; Lee Yen Chong ; Mei Yee Lee ; Nawal Aqilah Amir ; Jia Ling Voon ; Wilson Wei Sheng Chin
International e-Journal of Science, Medicine and Education 2019;13(1):26-32
Objectives:
To evaluate study designs and citation counts of original research published in the Medical Journal of Malaysia (MJM).
Methods:
The bibliographic data of the MJM for the period 1980-2016 were retrieved from PubMed and analysed using Endnote bibliographic software. Study designs of original journal articles were analysed according to whether the articles were diagnostic study, prognostic study or clinical trial (collectively known as “evidence papers”). The citation counts of the original articles and case reports for the period 2012-2016 were compared in a sub-study using a case-control design.
Results:
A total of 3952 MJM journal items were retrieved from PubMed for the period 1980-2016; of these, 58.9% were original articles and 29.5% were case reports. Among the original articles, 14.6% were “evidence papers”; 2.3% were diagnostic studies, 7.7% were prognostic studies, 4.6% were clinical trials. In the study period 2012-2016, “other types of original articles” had statistically significantly more citations than case reports. However, there is no difference between “evidence papers” and case reports.
Conclusion
Our analysis shows the distribution of the types of articles appearing in the MJM for the period of study and serves as a reference for improving citations counts in the local context.
Bibliometrics
10.Tuberculous optochiasmatic arachnoiditis and optochiasmatic tuberculoma in Malaysia
Mei-Ling Sharon TAI ; Shanthi VISWANATHAN ; Kartini RAHMAT ; Heng Thay CHONG ; Wan Zhen GOH ; Esther Kar Mun YEOW ; Tsun Haw TOH ; Chong Tin TAN
Neurology Asia 2018;23(4):319-326
Background & Objectives: Arachnoiditis which involves the optic chiasm and optic nervecan rarely
occurs in the patients with tuberculous meningitis (TBM). The primary objective of this study was to
determine the incidence, assess the clinical and neuroimaging findings, and associations, understand
its pathogenesis of these patients, and determine its prognosis. Methods: The patients admitted with
TBM in the neurology wards of two tertiary care hospitals from 2009 to 2017 in Kuala Lumpur,
Malaysia were screened. The patients with OCA and optochiasmatic tuberculoma were included in
this study. We assessed the clinical, cerebrospinal fluid (CSF), imaging findings of the study subjects
and compared with other patients without OCA or optochiasmatic tuberculoma. Results: Eighty-eight
patients with TBM were seen during the study period. Seven (8.0%) had OCA and one (1.1%) had
optochiasmatic tuberculoma. Five out of seven (71.4%) patients with OCA were newly diagnosed cases
of TBM. The other two (28.6%) had involvement while on treatment with antituberculous treatment
(paradoxical manifestation). The mean age of the patients with OCA was 27.3 ± 11.7. All the OCA
patients had leptomeningeal enhancement at other sites. All had hydrocephalus and cerebral infarcts
on brain neuroimaging. Three (42.9%) patients had cerebral tuberculoma at sites other than suprasellar
and optic chiasm areas. On univariate analysis, the presence of OCA and optochiasmatic tuberculoma
was associated with raised CSF opening pressure (p=0.014), younger age (p=0.024), cerebral infarcts
(p=0.018) and hydrocephalus (p= 0.046). There was no statistically significant association on logistic
regression. Only one (14.3%) patient had visual impairment.
Conclusion: OCA and optochiasmatic tuberculoma were seen in 9% of a cohort of Malaysian TBM
patients. They were more likely to be younger, have raised CSF opening pressure, cerebral infarcts
and hydrocephalus, suggesting the association with a more severe exudative disease.


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