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.Anti-diabetic medication burden amongst older persons with diabetes and associated quality of life
Mohd Shaiful Ehsan Bin Shalihin ; Abdullah Bin Fauzi ; Nurul Afiqah binti Zulkifli ; Azrul Aziz bin Abdul Azi
The Medical Journal of Malaysia 2020;75(5):525-530
Background: Older persons with diabetes are the major
demographic of diabetic patients followed up in primary
health clinics. Despite their increasing age and morbidities,
they are still being managed strictly towards good sugar
control in order to achieve the ideal HbA1c level without
taking their quality of life into consideration. This study
aimed to determine the prevalence in the use of antidiabetic
drugs among older persons with diabetes and its
association with their quality of life.
Methodology: A cross-sectional study was conducted
among 269 older persons with diabetes in all government
health clinics in Kuantan using Diabetes Quality of Life
questionnaire. SPSS version 23 was used for the statistical
analysis.
Results: Majority of the respondents were females (61%),
Malays (84.8%), pensioners (54.3%) with education up to
primary school (52%) and are staying with family members
(93.7%). Most of the patients were on two antidiabetic agents
(48%) followed by a single antidiabetic agent (32%). Despite
the risk of hypoglycaemia, 0.4% of them are on
glibenclamide. The use of insulin is still common among
21% of them that are on intermediate-acting insulin, 15.6%
on premixed insulin and 7.8% on short-acting insulin. Those
taking a higher number of antidiabetic agents were found to
be associated with poorer quality of life (p=0.001) compared
to those taking one or two antidiabetic medications. Those
on insulin also have significantly poorer quality of life score
(p=0.012).
Conclusion: Despite aiming for controlled diabetes, older
persons suffer poor quality of life with further intensification
of their antidiabetic medications according to the guidelines.
This includes the complexity of insulin usage and
polypharmacy, which contribute to the low quality of life
score.