1.Antifungal effects and phytochemical screening of Andrographis paniculata extracts on dermatomycoses
Tuan Kub Tuan Noorkorina ; Farhaana Mohd Ab Aziz ; Anis Amiera Muhamad Alojid ; Nursaadatun Nisak Ahmad ; Zeti Nurfidiyati Salmuna ; Siti Asma&rsquo ; Hassan ; Sabarisah Hashim ; Azian Harun
Malaysian Journal of Microbiology 2021;17(5):576-587
Aims:
Andrographis paniculata (AP), a medicinal herb was selected to investigate the antifungal activity on selected dermatophyte fungi. The phytochemical screening was also carried out to evaluate its chemical constituents.
Methodology and results:
The potato dextrose agar (PDA) incorporated with aqueous, ethanol and methanol AP extracts at concentrations 0.99% (v/v), 1.96% (v/v) and 7.41% (v/v) were used for selected fungi culturing; Trichophyton mentagrophytes, T. rubrum, T. interdigitale, Microsporum fulvum, M. nanum, M. gypseum, M. canis, Fusarium solani and Aspergillus fumigatus. Phytochemical screening showed the presence of flavonoids, saponins and tannins in the ethanol extract and flavonoids alone in both aqueous and methanol extracts. Studies on antifungal effects indicated that the ethanol extract significantly increased the mycelial inhibition percentage of all tested fungi, especially at a concentration of 7.41% (v/v). All ethanol AP extract concentrations inhibited M. gypseum and M. canis (p<0.05) with at least 36.00% mycelial inhibition. In aqueous AP extract, it significantly increased the mycelial inhibition of T. mentagrophytes, T. interdigitale and M. gypseum (p<0.05), while the methanol AP extract significantly inhibited all fungi at a concentration of 7.41% (v/v) except for T. rubrum, M. gypseum and F. solani (p<0.05). No spore sedimentation was recorded for the fungal spores of T. rubrum, M. nanum, T. mentagrophytes, M. gypseum and T. interdigitale at 7.41% (v/v) ethanol AP.
Conclusion, significance and impact of study
It is concluded that the ethanol AP extract contained phytochemical constituents and showed the highest antifungal activity. In addition, this extract has a great potential to treat dermatophytes effectively.
Antifungal Agents
;
Phytochemicals
;
Andrographis paniculata
;
Dermatomycoses
2.A Polymorphism in the Microsomal Triglyceride Transfer Protein Can Predict the Response to Antiviral Therapy in Egyptian Patients with Chronic Hepatitis C Virus Genotype 4 Infection.
Yasmin SAAD ; Olfat SHAKER ; Yasser NASSAR ; Lama AHMAD ; Mohamed SAID ; Gamal ESMAT
Gut and Liver 2014;8(6):655-661
BACKGROUND/AIMS: A polymorphism in the microsomal triglyceride transfer protein (MTP) is associated with hepatic fibrosis, and carriers showed higher levels of steatosis, higher levels of hepatitis C virus (HCV) RNA and advanced fibrosis. The aim of this study was to study MTP expression pattern in HCV patients and impact of the MTP polymorphism on the response to antiviral therapy. METHODS: One hundred consecutive naive HCV genotype 4 patients were recruited to receive antiviral therapy, and 40 control subjects were also recruited. Demographic, laboratory, and histopathology data were collected. DNA was isolated, and the samples were subjected to polymerase chain reaction analysis and genotyping for MTP by restriction fragment length polymorphism analysis. RESULTS: Patients and controls were age- and sex-matched (male/female, 56/44, age, 39.2+/-7.8 years for patients with HCV; male/female, 18/22, age, 38.1+/-8.1 years for controls). MTP single nucleotide polymorphisms (SNPs) (GG, GT, TT) and alleles (G, T) in the patients versus the controls were 70%, 21%, 9% & 80.5%, 19.5% versus 10%, 87.5%, 2.5% & 53.8%, 46.3%, respectively (p=0.0001). The sustained viral response (SVR) of the patients was 60%. SNPs in MTP genotypes (GG, GT, and TT) and alleles (G and T) in the responders and nonresponders were 71.7%, 25%, 3.3% & 84.2%, 15.8% versus 67.5%, 15%, 17.5% & 75%, 25% (p=0.038 and p=0.109, respectively). A multivariate analysis showed that the GT genotype was an independent predictor of SVR (area under the curve 90% and p=0.0001). CONCLUSIONS: MTP could be a new predictor for SVR to antiviral therapy in patients with HCV genotype 4 infection.
Adult
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Antiviral Agents/*therapeutic use
;
Carrier Proteins/*genetics
;
Case-Control Studies
;
Egypt
;
Female
;
Genotype
;
Hepacivirus/genetics
;
Hepatitis C, Chronic/*drug therapy/genetics
;
Humans
;
Male
;
Middle Aged
;
Polymorphism, Restriction Fragment Length
;
Polymorphism, Single Nucleotide
;
RNA, Viral/blood
;
Treatment Outcome
;
Viral Load


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