1.Antimicrobial effect of Malaysian green tea leaves (Camellia sinensis) on the skin microbiota
Hassanain Al-Talib ; Noor Alicezah Mohd Kasim ; Alyaa Al-Khateeb ; Chandrika Murugaiah ; Azrul Abdul Aziz ; Niena Nazleen Rashid ; Nazihah Azizan ; Shairah Ridzuan
Malaysian Journal of Microbiology 2016;12(6):423-427
Aims:
Camellia sinensis
(
green t
ea) is known for its therapeutic properties (anti
-
inflammatory, anti
-
oxidative and anti
-
ageing). The aim of this study was to determine the
in vitro
inhibitory activity of gree
n tea extract on some odorous skin
commensal bacteria.
Methodology and results:
Tea leaves were collected from
MARDI Agro Technology Park, Cameron Highlands. A
standardised protocol was used to obtain green tea extract. Aqueous green tea extracts were tes
ted for antibacterial
activity by well diffusion method. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC)
assays were performed by broth microdilution assays using green tea extract concen
trations from 16 to 0.0313 mg/
mL
.
Green tea
extract showed antibacterial activity against skin microbiota. The high antimicrobial effect was achieved
against
Micrococcus luteus
with MIC and MBC of 0.125 and 0.25 mg/μL respectively, followed by
Staphylococcus
epidermidis
with MIC and MBC o
f 0.25 and 0.25 mg/μL respectively,
Bacillus subtilis
with MIC and MBC of 0.5 and 0.5
mg/μL respectively and lastly,
Corynebacterium xerosis
with MIC and MBC of 0.5 and 1.0 mg/μL respectively.
Conclusion, significance and impact of study:
The results obta
ined from the study confirm the
in vitro
anti
-
microbial
activity of green tea extracts against skin microbiota. The antibacterial effects of green tea against skin bacteria with its
anti
-
oxidant and anti
-
aging properties will help in keeping skin healthy,
fresh and reducing unpleasant
odo
rs
.
Camellia sinensis
2.A successful pregnancy outcome of homozygous familial hypercholesterolaemia patient on statin therapy
The Malaysian Journal of Pathology 2021;43(1):87-93
Homozygous familial hypercholesterolaemia (HoFH) is a rare genetic disorder of lipoprotein
metabolism mainly due to mutation of the low-density lipoprotein (LDL)-receptor gene (LDLR).
It is a life-threatening disease that causes accelerated, multi-vessel atherosclerosis presented in
early childhood. Pregnancy in HoFH may pose early coronary morbidity and mortality to both
the foetus and mother. The combination of HoFH and pregnancy can be a fatal condition. While
statins are very effective in lowering low-density lipoprotein cholesterol (LDL-C) levels, they are
generally contraindicated during pregnancy, thus their use during pregnancy is uncommon. On the
other hand, lipid apheresis (LA) has turned into an effective treatment to control cholesterol level
amid pregnancy. However, the procedure is not widely available in our region. To date, there are
scarcely documented case reports of HoFH in pregnancy in which the majority of them underwent
LA to keep LDL-C at a low level. We report a rare case of successful pregnancy outcome of HoFH
patient treated with lipid-lowering drugs including statin without LA therapy. Apart from that, we
also discussed the genetic findings of the proband and all screened family members in which to
the best of our knowledge, the first study using the whole-exome sequencing technique to identify
the causative gene mutations for familial hypercholesterolaemia among the Malaysian population.