1.In vitro anti-Candida activity of Quercus infectoria gall extract-based vaginal cream and its local tissue effects in vivo
Wan Nor Amilah Wan Abdul Wahab ; Nurul Shuhadah Ahmad ; Ahmad Najib Mohamad ; Siti Nanda Zainal ; Hasmah Abdullah
Malaysian Journal of Microbiology 2019;15(2):159-165
Aims:
Aqueous extract of Quercus infectoria (QI) galls has been reported to possess anti-fungal and anti-inflammatory activities. Hence, this study aimed to determine in vitro antimicrobial activity of formulated QI gall extract-based vaginal cream against Candida albicans and to evaluate the possible side effects on the cervicovaginal epithelium of healthy rats.
Methodology and results:
Three different cream formulations containing 10%, 20%, and 30% of QI gall extract respectively were tested for their antimicrobial activity against C. albicans (ATCC 10231) by using disc diffusion test. Microbroth serial dilution method was performed in determining the minimum inhibitory concentration (MIC) and fungicidal concentration (MFC). The 30% formulated extract cream (FEC) was applied topically on the cervicovaginal surface of healthy Sprague Dawley (SD) rats and examined for local tissue effects histologically. The mean scores of inhibition zone diameter were compared by one-way ANOVA and post-hoc test using PRISM software. All extract cream formulations displayed a relatively good anti-Candida activity. The MIC values exhibited by 10%, 20%, and 30% FEC against C. albicans were 1.094 mg/mL, 0.547 mg/mL, and 0.068 mg/mL, respectively. The 10% and 20% FECs showed a significant difference (P=0.0254) in the mean of inhibition zone diameter. The lowest MFC value (0.068 mg/mL) was shown by 30% FEC. There were no abnormal changes seen at the vagina and cervical mucosa after 2 weeks application of 30% FEC.
Conclusion, significance and impact of study
QI gall extract formulated in the cream base has an anti-Candida activity in vitro and the present finding suggests that this herbal cream formulation is potentially useful in preventing vaginal candidiasis without causing any unwanted local side effects.
2.A Scoping Review of the Prevalence of Fascioliasis in Malaysia and Risk Factors for Infection
Mohamad Ahmad Najib ; Noor Jamil Noor Izani ; Wan Abdul Wahab Wan Nor Amilah ; Arizam Muhamad Faez ; Zainuddin Shafizol
Malaysian Journal of Medical Sciences 2020;27(1):22-36
This review aimed to provide a comprehensive overview of ruminant and human
fascioliasis in Malaysia and to identify research gaps in knowledge of the prevalence of fascioliasis
in Malaysia and risk factors for the disease using available evidence-based data. We conducted a
scoping review based on the framework of Arksey and O’Malley. The preferred reporting items for
systematic reviews and meta-analyses were used to guide the review process. The citation search
was performed between May and September 2018. Using specific keywords, literature published
between 1998 to September 2018 was retrieved from electronic databases. Six articles related to
fascioliasis in Malaysia were included in the final review from 1,932 screened articles and reports.
Five studies focused on ruminants, including cattle, buffaloes, sheep and goats in the states of
Terengganu and Perak. The most frequent ruminant fascioliasis outbreaks involved cattle and
goats, with a prevalence of 82%–95% and these outbreaks occurred in Terengganu. Only one study
examined the risk of fascioliasis in cattle. In the study, the age and sex of the cattle were important
risk-related parameters. The search returned only one documented report of a suspected case
of human fascioliasis with an atypical clinical presentation. At present, human fascioliasis in
Malaysia remains under-reported and its prevalence remains unknown. The data summarised in
this review based on existing evidence identifies research gaps on fascioliasis in ruminants and
humans.