1.A Case-Control Study and Meta-Analysis of the Association of eNOS rs1799983 SNP with Stroke Risk
Medicine and Health 2019;14(1):118-134
The endothelial nitric oxide synthase (eNOS) rs1799983 polymorphism is known to
increase the risk towards stroke, but data is under-reported in Malaysian population.
Therefore, this study sought to investigate this association in a Malaysian population
and in a comprehensive meta-analysis. Genotyping of the eNOS rs1799983
polymorphism was performed for 241 Malaysians using a hydrolysis probe. Odd
ratio with 95% confidence interval was calculated. Meta-analysis was conducted
using the Comprehensive Meta-Analysis software ver. 2.2.064. A p-value less than
0.05 was considered statistically significant. Overall, our results showed that the
presence of eNOS rs1799983-T allele increases the risk towards stroke, particularly
in males, fast-food goers and Malaysian Chinese. The meta-analysis showed that
the rs1799983 polymorphism is significantly associated with an increase ischemic
stroke risk in the recessive and allelic models. After stratified with population, these
associations remain significant in the Asian population but not in the Caucasian
population. In summary, this study establishes a significant relationship between
the eNOS rs1799983 polymorphism with gender, lifestyle and ethnicity differences
towards stroke risk in the Malaysian population. In addition, our meta-analysis
suggests that the eNOS rs1799983 polymorphism is associated with an increase
risk of ischemic stroke.
2.A Crossover Study Comparing In-Plane and Outof-Plane Approaches for Simulated UltrasoundGuided Central Venous Cannulation on Phantom Models by Anaesthesiology Trainees
Medicine and Health 2019;14(1):135-144
This prospective crossover study compared the incidence of posterior vessel wall
puncture between two approaches during ultrasound-guided simulated central
venous cannulation by anaesthesiology trainees. Each phantom model, simulating
a central vein and artery, was cannulated by 37 anaesthesiology trainees under
ultrasound-guidance using the in-plane approach (IPA) and out-of-plane approach
(OPA). Total procedural time and the time taken from starting image scanning until
commencing puncture, was recorded. The number of attempts required to achieve
successful venous cannulation was noted. Finally, the models were examined for
posterior venous wall and arterial puncture. Total procedural time was shorter
with the OPA (26.5 vs 50.3 seconds, p=0.001). The time taken from starting image
scanning until commencing puncture was shorter for the OPA (2.2 vs 12.3 seconds,
p<0.0001). The IPA resulted in significantly more attempts for cannulation. Twenty
and eleven participants were successful within the first pass using the OPA and
IPA, respectively (p=0.034). There was no difference in the incidence of posterior
vessel wall puncture between these two techniques. The OPA resulted in less
arterial puncture compared to the IPA (2 vs 9, p=0.022). The incidence of posterior
vessel wall puncture between the IPA and OPA during ultrasound-guided simulated
central venous cannulation by anaesthesiology trainees was comparable.
3.A Huntsman’s Bite: Envenoming from the Malaysian ‘Black & Gold’, Thelcticopis sp. Spider (Arachnida: Araneae: Sparassidae: Sparianthinae)
Medicine and Health 2019;14(1):183-190
Most spider species in Malaysia are considered harmless and spider bites are rarely
reported. This is partly due to the mild effects from the bite and victims do not seek
medical treatment in the hospital. To date, there are few well-documented cases
of medically significant bites from indigenous spider species in Malaysia. Here,
we report the presentation, clinical management and outcome of two patients
following a bite by the yet to be described ‘Black & Gold’ Huntsman spider from
the genus Thelcticopis in Malaysia. The first case involved a 42-year-old man
who was bitten on the tip of the distal phalanx of his right middle finger and
presented with severe pain and local swelling. He was treated symptomatically
and was discharged well. The second case involved a 57-year-old woman, who
was bitten on the proximal phalanx of her right little finger and presented with
severe throbbing pain and progressive swelling. She was treated symptomatically
and was discharged after 24 hours observation in the medical ward. However, she
noted moderate neck and generalized joints pains especially affecting the hips
and knees, one day prior to discharge. She was treated with oral analgesia and
symptoms resolved within two days.
4.A Rare Case of a Male Infant with Down-Turner Syndrome and Review of Cases
Medicine and Health 2019;14(1):234-243
Individuals with double aneuploidy of Down-Turner syndrome are very rare and
to date, fewer than 50 cases have been reported, worlwide. We report a case
of a male infant who presented with dysmorphic features of upslanting eyes, flat
nasal bridge, wide spaced nipples and macroglossia. Based on the clinical features,
he was diagnosed with Down syndrome. His peripheral blood sample was taken
and sent for cytogenetic analysis for confirmation. Chromosome analysis of his
lymphocyte cell culture revealed a mosaic pattern of double aneuploidy with
monosomy X identified in 31 metaphases and trisomy 21 in 14 metaphases:
(45,X[31]/47,XY,+21[14]). Further analysis with fluorescence in situ hybridization
(FISH) using Vysis LSI SRY Spectrum Orange/CEP X Spectrum Green Probe and
Vysis CEP Y Spectrum Aqua Probe and Vysis LSI 21 Spectrum Orange Probe
performed on the cells (nuclei and metaphases) has confirmed the presence
of the abnormal two cell lines (81% monosomy X and 19% trisomy 21) in the
patient. Ultrasound investigations of his pelvic region showed normal testes and no
evidence of uterus, ovary or vagina. To the best of our knowledge, this is the first
Down-Turner syndrome reported in Malaysia. In conclusion, this case demonstrates
the importance of Giemsa-banded karyotype and FISH analyses as diagnostic
tools in identifying the chromosomal abnormality and determining the ratio of the
normal:abnormal cells present in the patient. An annotated bibliography of earlier
reported cases of Down-Turner with documented karyotyping is also included in
this report.
5.Adhesions as an Uncommon Complication of K-Wiring in Paediatric Phalangeal Fractures
Medicine and Health 2019;14(1):203-208
Paediatric hand fractures are common and prompt management is mandatory to
achieve a good functional outcome. However many fail to realize that treating a
fracture does not only involve bones but the soft tissues, as well. K-wiring itself
can be difficult with multiple attempts inadvertently injuring the flexor or extensor
tendons and resulting in adhesions. We highlight this possible complication of
K-wiring which we believe is under reported due to the perception that K-wiring
is a simple procedure. We present a case of a 9-year-old child, who sustained a
closed displaced fracture of the base of the proximal phalanx (Salter Harris type 2)
of the left index finger. He underwent percutaneous K-wiring but was complicated
with severe adhesions of the flexor digitorum profundus (FDP) and flexor digitorum
superficialis tendons (FDS). He was unable to flex the proximal and distal
interphalangeal joints of the affected finger. We subsequently performed tendon
adhesiolysis twice together with A2 pulley reconstruction, to restore movement
of the finger. K-wiring of the fingers are not just simple bony procedures but also
involve soft tissue components which can be prone to adhesions
6.Alveolar Rhabdomyosarcoma of the Neck in a Two-Months-Old Baby: Diagnostic Challenges
Medicine and Health 2019;14(1):228-233
Rhabdomyosarcoma (RMS) is the most common soft tissue malignancy in children
and adolescents. The rarity of its occurrence in infant poses a great difficulty
in terms of diagnosis and management. Here, we report an aggressive case of
alveolar rhabdomyosarcoma in an infant who presented with neck swelling and
neurological complications. The Magnetic Resonance Imaging (MRI) revealed
a soft tissue swelling of the neck with intraspinal extension and spinal cord
compression, raising the possibility of a neurogenic or malignant nerve sheath
tumour. Histopathological examination revealed a primitive, small round cell
tumour with no rhabdoid differentiation. The clinical presentation, neurological
symptoms, tumor location and the histopathologic features were highly suggestive
of neuroblastoma. However, the tumour cells were positive for desmin with focal
and weak nuclear positivity for myogenin and MyoD1; immunoexpressions
which were in favour of rhabdomyosarcoma. Fluorescent in situ hybridization
(FISH) confirmed the presence of a translocation t(2;13)(q35;q14), supporting
the diagnosis of alveolar rhabdomyosarcoma. Despite chemotherapy, patient
succumbed to death after two months due to septic shock. Rhabdomyosarcoma
is highly aggressive mesenchymal neoplasm which may present with diagnostic
difficulty. This case highlights the importance of molecular studies in making an
accurate diagnosis so that appropriate chemotherapy may be instituted.
7.Anatomical Variations of the Lumbrical Muscles Causing Carpal Tunnel Syndrome
Medicine and Health 2019;14(1):197-202
Many anatomical variations exist in and around the carpal tunnel. However,
symptomatic anomalies causing carpal tunnel syndrome is rare. Additionally,
carpal tunnel surgery is considered a simple operation commonly done by junior
surgeons who are usually unaware of variations resulting in unfavorable surgical
outcomes. We highlight a case of lumbrical muscle variation causing carpal tunnel
syndrome. A 73-year-old male presented with numbness and pain of both hands
associated with abnormal fullness over both wrists and distal forearms. Initially the
right hand was numb and subsequently a year later, the left hand became numb.
Physical examination was positive for Durkan, Phalen and Tinel signs at the carpal
tunnel. Magnetic Resonance Imaging (MRI) showed abnormal muscle tissues in
the carpal tunnel. During the carpal tunnel release and exploratory surgery, we
noted an abnormally proximal origin of the lumbrical muscles in the forearm rather
than the typical palmar origin. He also had lumbrical muscle hypertrophy in the
left side. These two factors resulted in overcrowding within the carpal tunnel. Postoperatively the patient recovered well with pain relief and gradual improvement of
his numbness. Variations in the anatomy of the lumbrical muscles is not uncommon
and may result in carpal tunnel syndrome. Hence, carpal tunnel release surgeries
may not be as straight forward as expected and surgeons should be aware of this
possibility.
8.Antioxidant Properties of Stingless Bee Honey and Its Effect on the Viability of Lymphoblastoid Cell Line
Medicine and Health 2019;14(1):91-105
Research on the medical benefit of stingless bee honey (kelulut honey) is rather new
although it has been used as traditional food and additive for ages. The primary
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Med & Health Jun 2019;14(1): 91-105 Hazirah H. et al.
objective of our study was to evaluate the antioxidant properties of kelulut honey
and its effect on lymphoblastoid cell line. We analysed the antioxidant properties
of kelulut honey by ferric reducing antioxidant potential assay, total phenolic and
flavonoid contents using UV spectrophotometry. The total phenolic content, total
flavonoid content and ferric reducing antioxidant potential of Malaysian kelulut
honey produced by Trigona spp. were found to be 844.45 mg RE/kg honey, 78.29
mg RE/kg honey and 1132.66 mM FE/kg honey, respectively. Our findings showed
a strong correlation between total phenolics and flavanoids contents with its
antioxidant potential at R2
= 0.920 and R2
= 0.951, respectively. The effect of honey
on cell viability of lymphoblastoid cell line (LCL) was also investigated. The cells
were cultured in RPMI-1640 medium supplemented with 0 - 500 μg/mL of kelulut
honey for 24 hours. Cell viability was quantitated using 3-(4,5-dimethylthiazol2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, MTS assay
showed that honey supplementation boosted the viability of LCL up to 164.64%
(p< 0.01). The significant increase in cell viability might be modulated by the
antioxidant properties of kelulut honey.
9.Attention-Deficit Hyperactive Disorder (ADHD) Presenting with Major Depression in an Adolescent: A Case Report.
Medicine and Health 2019;14(1):215-221
Major depressive disorder is an important psychiatric illness that can be a lifethreatening condition when it presents with suicidality. This case report describes
an adolescent who presented with major depressive disorder but with an underlying
undiagnosed attention deficit hyperactive disorder (ADHD). The 17-year-old male
adolescent presented with psychosomatic complaint of non-resolving left sided chest pain. He also had major depressive symptoms and suicidal ideation. His
ADHD was being missed. This case highlights the difficulty of diagnosing ADHD
during adolescence as the presentation may not be as typical as during earlychildhood years.
10.Biological and Psychological Influences of CrossSex Hormone in Transgender
Medicine and Health 2019;14(1):1-22
Transgender is a complex state of bio-psycho-social dimension of human sexuality.
It encompasses cognitive-emotional-behavior component that makes the person
unique in his or her sexual expression. Transgender tend to use cross-sex hormone
in order to eradicate their secondary sexual characteristics and to facilitate the shift to their experienced gender. The common masculinising sex hormone use,
i.e. Female to Male Treatment Options (FMTO) is testosterone and for feminising
hormone i.e. Male to Female Treatment Options (MFTO) is a combination of
estrogen with anti-androgen, respectively. Cross-sex hormone, i.e. FMTO, or
MFTO has biological and psychological influences on the transgender individuals.
Nevertheless, cross-sex hormone may also pose a range of side effect profiles,
varies from the biological to psychosocial impact. The psychological impact can
be paramount until it causes severe mental-health problems and even suicide.
Numerous ranges of bio-psycho-social influence of cross-sex hormone were
highlighted in this review as fundamental core knowledge in the art to know
practice when dealing with the treatment options. In psychiatry, the change in
the biological appearance may have great influence in the transgender individual,
especially in the context of psychosocial and cultural perspective