Jamila Nawab 1 , Shafiq Ahmad Tariq 1 , Naeem Khan 1 , Sadia Nawab 2 , Muhammad Raza Shah 3 , Syed Muhammad Ashhad Halimi 4 , Haroon Khan 5 Show Affiliations »
Abstract
BACKGROUND: Antimicrobial drug resistance is an emerging problem, which leads to a failure in the control of infectious diseases thereby, adversely affecting patient care and reducing effective management of infectious diseases globally. Thus, search for new and more effective alternatives is needed. Daphne retusa Hemsl. (Daphne) has medicinal values and is reported to be widely used in curing a variety of human ailments. OBJECTIVE: Current study assesses in-vitro antimicrobial activity of the crude extract of D.retusa (whole plant) and its derived fractions against clinically isolated human pathogenic bacteria and fungi. MATERIALS AND METHODS: Whole plant of D.retusa was powder dried and then extracted with methanol (E1). The resultant was fractionated to give Chloroform fraction (E2), Butanol fraction (E3) and Ethyl acetate fraction (E4). The crude extract and derived fractions were assessed for antimicrobial and antifungal activity by using agar well diffusion method and their MICs were found following Clinical and Laboratory Standard Institute (CLSI) guidelines. RESULT: Our study shows that D.retusa has very good inhibitory action against different bacterial and fungal strains. All of the extracts were active against almost every microorganism used in the study. E2 has the maximum percent of inhibition against bacterial growth while E1 has themaximum percent of inhibition against fungal growth. Streptococcus pneumonia was the most susceptible bacteria while among fungi, Gongronella butleri showed highest susceptibility. CONCLUSION: Results justify the use of D. retusa in the treatment of microbial infections. For the development of a novel antibiotic, the crude extract and its derived fractions need further exploration; with emphasis to isolate and identify the active constituents that are responsible for antibacterial and antifungal activity. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.
BACKGROUND: Antimicrobial drug resistance is an emerging problem, which leads to a failure in the control of infectious diseases thereby, adversely affecting patient care and reducing effective management of infectious diseases globally. Thus, search for new and more effective alternatives is needed. Daphne retusa Hemsl. (Daphne) has medicinal values and is reported to be widely used in curing a variety of human ailments. OBJECTIVE: Current study assesses in-vitro antimicrobial activity of the crude extract of D.retusa (whole plant) and its derived fractions against clinically isolated human pathogenic bacteria and fungi. MATERIALS AND METHODS: Whole plant of D.retusa was powder dried and then extracted with methanol (E1). The resultant was fractionated to give Chloroform fraction (E2), Butanol fraction (E3) and Ethyl acetate fraction (E4). The crude extract and derived fractions were assessed for antimicrobial and antifungal activity by using agar well diffusion method and their MICs were found following Clinical and Laboratory Standard Institute (CLSI) guidelines. RESULT: Our study shows that D.retusa has very good inhibitory action against different bacterial and fungal strains. All of the extracts were active against almost every microorganism used in the study. E2 has the maximum percent of inhibition against bacterial growth while E1 has themaximum percent of inhibition against fungal growth. Streptococcus pneumonia was the most susceptible bacteria while among fungi, Gongronella butleri showed highest susceptibility. CONCLUSION: Results justify the use of D. retusa in the treatment of microbial infections . For the development of a novel antibiotic, the crude extract and its derived fractions need further exploration; with emphasis to isolate and identify the active constituents that are responsible for antibacterial and antifungal activity. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.
Entities: Chemical
Disease
Species
Keywords:
Agar well diffusion method; Bacteria and Fungi; CLSI Guideline; D. retusa; Gongronella butleri; MIC.
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Year: 2018
PMID： 29807517 DOI： 10.2174/1568026618666180528122429
Source DB: PubMed Journal: Curr Top Med Chem ISSN： 1568-0266 Impact factor: 3.295