scholarly journals Inhibitory Effect of (-)-myrtenol alone and in combination with antifungal agents on Candida spp.

2021 ◽  
Vol 10 (15) ◽  
pp. e35101522434
Author(s):  
Bruno Bezerra Cavalcanti ◽  
Hermes Diniz Neto ◽  
Walicyranison Plinio da Silva-Rocha ◽  
Edeltrudes de Oliveira Lima ◽  
José Maria Barbosa Filho ◽  
...  
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Antifungal Agent ◽  
Antifungal Agents ◽  
Inhibitory Concentration ◽  
Inhibitory Effect ◽  
Antifungal Drugs ◽  
Additive Effects ◽  
Candida Spp ◽  
Minimum Fungicidal Concentration ◽  
Fungicide Activity

The aim of this study was to examine the effects of (-)-myrtenol alone and combined with antifungal agents against Candida spp. The Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration of (-)-myrtenol and fluconazole against C. albicans and C. parapsilosis strains was obtained using CLSI guidelines. Combination of (-)-myrtenol with antifungal drugs was determined by checkboard test. The (-) myrtenol showed MIC ranging from 256 to 512 µg/mL against both species assay. And the MFC was 512 µg/mL, demonstrated nature fungicidal (MFC/MIC < 4). In addition, combination of antifungal agents (amphotericin B and fluconazole) and (-) myrtenol showed synergistic and additive effects on strains assays. Based on these results, the present study demonstrates that (-) myrtenol showed strong fungicide activity against Candida spp. In addition, Combination of antifungal agents and (-) myrtenol reduces the effective concentrations of both the agents with synergistic to additive effects. Therefore, (-) myrtenol has potential to be developed into an antifungal agent.

scholarly journals Attempts to Access a Series of Pyrazoles Lead to New Hydrazones with Antifungal Potential Against Candida Species Including Azole-Resistant Strains

2021 ◽  
Author(s):  
Georgiana NEGRU ◽  
Laure KAMUS ◽  
Elena Bîcu ◽  
Sergiu Shova ◽  
Boualem SENDID ◽  
...  
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Antifungal Agents ◽  
Inhibitory Concentration ◽  
Pyrazole Derivatives ◽  
Mammalian Cell Line ◽  
Cell Toxicity ◽  
Candida Spp ◽  
X Ray ◽  
Antifungal Potential ◽  
Resistant Strains

The treatment of benzylidenemalononitriles 3a-c with phenylhydrazines 4a-n in refluxing ethanol did not provide pyrazole derivatives but furnished hydrazones 1a-o. The structure of hydrazones was secured by X-Ray analysis. Newly synthesized hydrazones 1a-o were tested against 8 Candida spp. strains in a dose response assay to determine the minimum inhibitory concentration (MIC99). Five compounds 1c, 1d, 1i, 1k and 1l were identified as promising antifungal agents against Candida spp. (C. albicans SC5314, C. glabrata, C. tropicalis, C. parapsilosis and C. glabrata (R azoles)) with MIC99 values ranging from 16 to 32 &micro;g/mL. To further evaluate the antifungal potential of the active compounds, they have been assayed against a mammalian cell line HEK293 to determine general cell toxicity and on NCI-60 cancer cell lines panel, demonstrating selectivity antifungal activity over cytotoxicity.

scholarly journals (R)-(+)-β-Citronellol and (S)-(−)-β-Citronellol in Combination with Amphotericin B against Candida Spp.

2020 ◽  
Vol 21 (5) ◽  
pp. 1785 ◽  
Author(s):  
Daniele Silva ◽  
Hermes Diniz-Neto ◽  
Laísa Cordeiro ◽  
Maria Silva-Neta ◽  
Shellygton Silva ◽  
...  
Keyword(s):  
Cell Wall ◽  
Candida Albicans ◽  
Minimum Inhibitory Concentration ◽  
Amphotericin B ◽  
Mechanism Of Action ◽  
Inhibitory Concentration ◽  
Association Studies ◽  
Antifungal Drugs ◽  
Candida Spp ◽  
Fungal Cell

The enantiomers (R)-(+)-β-citronellol and (S)-(−)-β-citronellol are present in many medicinal plants, but little is understood about their bioactivity against Candida yeasts. This study aimed to evaluate the behavior of positive and negative enantiomers of β-citronellol on strains of Candida albicans and C. tropicalis involved in candidemia. The minimum inhibitory concentration (MIC) and minimum fungicide concentration (MFC) were determined. The evaluation of growth kinetics, mechanism of action, and association studies with Amphotericin B (AB) using the checkerboard method was also performed. R-(+)-β-citronellol and S-(−)-β-citronellol presented a MIC50% of 64 µg/mL and a MFC50% of 256 µg/mL for C. albicans strains. For C. tropicalis, the isomers exhibited a MIC50% of 256 µg/mL and a MFC50% of 1024 µg/mL. In the mechanism of action assay, both substances displayed an effect on the fungal membrane but not on the fungal cell wall. Synergism and indifference were observed in the association of R-(+)-β-citronellol and AB, while the association between S-(−)-β-citronellol and AB displayed synergism, additivity, and indifference. In conclusion, both isomers of β-citronellol presented a similar profile of antifungal activity. Hence, they can be contemplated in the development of new antifungal drugs providing that further research is conducted about their pharmacology and toxicity.

scholarly journals Attempts to Access a Series of Pyrazoles Lead to New Hydrazones with Antifungal Potential against Candida Species Including Azole-Resistant Strains

Molecules ◽  
2021 ◽  
Vol 26 (19) ◽  
pp. 5861
Author(s):  
Georgiana Negru ◽  
Laure Kamus ◽  
Elena Bîcu ◽  
Sergiu Shova ◽  
Boualem Sendid ◽  
...  
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Antifungal Activity ◽  
Antifungal Agents ◽  
Inhibitory Concentration ◽  
Direct Reaction ◽  
Pyrazole Derivatives ◽  
Candida Spp ◽  
X Ray ◽  
Antifungal Potential ◽  
Resistant Strains

The treatment of benzylidenemalononitriles with phenylhydrazines in refluxing ethanol did not provide pyrazole derivatives, but instead furnished hydrazones. The structure of hydrazones was secured by X-ray analysis. The chemical proof was also obtained by direct reaction of 3,4,5-trimethoxybenzaldehyde with 2,4-dichlorophenylhydrazine. Newly synthesized hydrazones were tested against eight Candida spp. strains in a dose response assay to determine the minimum inhibitory concentration (MIC99). Five compounds were identified as promising antifungal agents against Candida spp. (C. albicans SC5314, C. glabrata, C. tropicalis, C. parapsilosis and C. glabrata (R azoles)), with MIC99 values ranging from 16 to 32 µg/mL and selective antifungal activity over cytotoxicity.

scholarly journals The Minimum Inhibitory Concentration (MIC) and Minimum fungicidal concentration(MFC) of extracted oil of lemon grass and thyme against Candida spp. and Bacteria Spp. Isolated from children with oral thrush

2008 ◽  
Vol 5 (2) ◽  
pp. 160-165
Author(s):  
Baghdad Science Journal
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Candida Species ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
The Other ◽  
Candida Spp ◽  
Minimum Fungicidal Concentration ◽  
New Born ◽  
Lemon Grass ◽  
Oral Thrush

120 samples were collected from children (ages between new born and 10 years) who infected with oral thrush. The results revealed that the Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC) of extracted oil of lemon grass against C.albicans, C.tropicalis, C.keyfr, C.glabrata and C.guilliermondii were 1.25,1.25,1.25,2.5 and 2.5µl/ml and 2.5, 2.5, 2.5, 5 and 5 µl /ml respectively. while the (MIC) and (MFC) for the extraction oil of thyme against C.albicans, C.tropicalis, C.keyfr, C.glabrata and C.guilliermondii were 0.6, 0.6, 1.25, 1.25, and 1.25µl/ml and 1.25, 1.25, 2.5, 2.5, and 2.5µl/ml respectively . While the value of (MIC) and (MFC) for Nystatin against Candida species were 32 and 64 µg / ml respectively. On the other hand the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) value of exctracted oil for lemon grass against E.coli, S. aureus and S. pyogenes were 5, 2.5 and 2.5 µl/ml and 10 , 5 and 5µl /ml respectively. while the (MIC) and (MBC) value of exctracted oil for thyme against E.coli, S. aureus and S. pyogenes were 2.5, 2.5 and 1.25 µl/ml and 5 , 5 and 2.5µl /ml respectively.

ANTIFUNGAL TOPICAL GEL OF LEAF EXTRACT OF AMARANTHUS VIRIDIS L. FOR TREATMENT OF CUTANEOUS CANDIDIASIS

INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (12) ◽  
pp. 39-44
Author(s):  
A. P. Pandit ◽  
◽  
K. S. Khandagale ◽  
V. C Nakhate ◽  
N. N Dharmadhikari
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Antifungal Activity ◽  
Leaf Extract ◽  
Inhibitory Concentration ◽  
High Viscosity ◽  
Good Choice ◽  
Zone Of Inhibition ◽  
Minimum Fungicidal Concentration ◽  
Topical Gel ◽  
Cutaneous Candidiasis

The objective of the study was to prepare antifungal gel using leaves of Amaranthus viridis for the treatment of cutaneous candidiasis. The leaves were studied for pharmacognostic evaluation. The powder of leaves was tested for phytoconstituents. The plant extract was evaluated for the minimum inhibitory concentration (MIC), minimum fungicidal concentration (MFC) and antifungal activity. Gel was prepared and evaluated for pH, viscosity, homogeneity and grittiness. MIC and MFC of extract were both found to be 600 mg. The zone of inhibition of extract was obtained at 21.2±0.2mm, which confirmed antifungal activity, due to presence of phenolic compound. Gel exhibited good antifungal activity, good spreadability, extrudability and high viscosity. Thus, gel loaded with leaves extract of A. viridis is a good choice for the treatment of cutaneous candidiasis.

scholarly journals Comparative Effects of Two Medicinal Plants and Common Disinfectants against Air-Borne Fungi in Poultry House

2019 ◽  
pp. 1-10
Author(s):  
Ifeoma Sandra Anagor ◽  
Chinelo Ursula Umedum ◽  
Stephen Nnaemeka Ezekwueche ◽  
Chibuzo Christain Uba
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Aqueous Extract ◽  
Fusarium Solani ◽  
Inhibitory Concentration ◽  
Candida Rugosa ◽  
Ethanol Extract ◽  
Vernonia Amygdalina ◽  
Minimum Fungicidal Concentration ◽  
Anambra State ◽  
Poultry Farms

Aim: This research was undertaken to compare the antifungal effects of Eupatorium odoratum leaf extract and Vernonia amygdalina extracts with common disinfectants on air-borne fungi in poultry houses. Place and Duration of Study: Air in four poultry farms within Ihiala Local Government Area, Anambra State was sampled between March 2017 and October 2017. Methodology: Poultry air of four different sites at Uli town in Ihiala local government area of Anambra state in Nigeria, were sampled using Sedimentation and Volumetric methods. Fresh leaves of Eupatorium odoratum and Vernonia amygdalina were collected from Uli town, Anambra State, air-dried, processed and extracted using Ethanol and water. Four-hundred (400) mg of the crude extracts were evaluated for Antifungal activity using agar diffusion method. The MIC and MFC were determined using Broth dilution methods. Results: Five isolates namely, Aspergillus flavus, Aspergillus tubingensis, Candida akabanensis, Candida rugosa, and Fusarium solani were identified. Antimicrobial evaluation of the crude extracts showed that ethanol extract of Eupatorium odoratum had activity against all the test isolates except Candida akabenensis and Fusarium solani. The aqueous extracts of Eupatorium odoratum and Vernonia amygladina had activity against all the isolate except Candida akabenensis and Fusarium solani and Candida rugosa. Common disinfectants used in this study namely Izal and Polidine showed inhibitory activity against all the isolates. Ethanol extract of Eupatorium odoratum recorded a minimum inhibitory concentration (MIC) of 100 mg/ml against A. flaus, F. solani, and A. tubingensis, while the minimum inhibitory concentration for Candida rugosa is 200 mg/ml. The minimum fungicidal concentration (MFC) of Ethanol extract of Eupatorium odoratum against A. flaus, F. solani, Candida rugosa and A. tubingensis were 200 mg/ml, 100 mg/ml, 400 mg/ml and 200 mg/ml respectively. Aqueous extract of Eupatorium odoratum recorded a minimum inhibitory concentration of 200 mg/ml against A. flaus and A. tubingensis, while the minimum inhibitory concentration against Candida rugosa is 400 mg/ml. The minimum fungicidal concentration of Aqueous extract of Eupatorium odoratum, were 200 mg/ml, 400 mg/ml and 200 mg/ml for A. flaus, Candida rugosa and A. tubingensis respectively. Ethanol extracts of Vernonia amygdalina leaf had lower minimum inhibitory concentrations of 100 mg/ml against A. flavus, A. tubingensis respectively, and 200 mg/ml against F. solani, while the minimum fungicidal concentrations recorded for A. flavus, A. tubingensis and F. solani were 200 mg/ml, 400 mg/ml and 100 mg/ml respectively. Aqueous extract of Vernonia amygdalina leaf had a minimum inhibitory concentration of 200 mg/ml and 400 mg/ml against A. flavus and A. tubingensis with a minimum fungicidal concentration of 400 mg/ml for both isolates only. The Minimum inhibitory concentration and minimum fungicidal concentration of both Izal and Polidine was between 12.5% V/V and 50% V/V against all the isolates except Polidine that had minimum fungicidal concentration of 100% V/V against Candida rugosa. Conclusion: The extracts of Eupatorium odoratum and Vernonia amygdalina has antifungal activity against all the isolates except Candida akabenensis. If considered and used as a disinfectant during misting, it may decrease the cost of disinfecting poultry farms using available disinfectants in the market. These suggestion, however, need further work to validate reliability.

Evaluation of Phytochemicals and Pharmacological Activities of Ben-Cha-Lo-Ka-Wi-Chian Remedy

2019 ◽  
Vol 891 ◽  
pp. 52-59
Author(s):  
Chanai Noysang ◽  
Teerarat Pummarin
Keyword(s):  
Antioxidant Activity ◽  
Minimum Inhibitory Concentration ◽  
Inhibitory Concentration ◽  
Propionibacterium Acnes ◽  
Ethanolic Extract ◽  
Inhibition Zone ◽  
Inhibitory Effect ◽  
Pharmacological Activities ◽  
Ethanolic Extracts ◽  
Reaction Test

Benchalokawichian (BLW) remedy is a Thai traditional medicine that has been notified in the List of Medicine Products of the National List of Essential Drugs A.D. 2006 and has long been used as an antipyretic. The phytochemicals of the 70% and 95% ethanolic extracts of were studied by color reaction test and HPTLC analysis. The BLW remedy showed a highest amounts of 70% ethanolic extractives (ca. 3.99 ± 0.60% of dry material weight). The several ethanolic extracts showed similar qualitative phytochemicals. The major of phytochemicals identified in these extracts were alkaloids, flavonoids, tannins, and polyphenols. The antioxidant activity was assessed using the 2,2-diphenyl-1-picrylhydrazyl assay. The analysed 70% ethanolic extract showed a highest antioxidant activity at IC50= 526.09 µg/ml and both extracts not showed tyrosinase inhibitory effect. The 95% ethanolic extract showed the greatest anti-propionibacterium acnes activity with inhibition zone of 10.10 ± 0.45 mm and minimum inhibitory concentration (MIC) was 5.05 mg/ml

scholarly journals Antifungal Effects of Zataria multiflora Essential Oil on the Inhibitory Growth of some Postharvest Pathogenic Fungi

2015 ◽  
Vol 7 (4) ◽  
pp. 412-416
Author(s):  
Mahboobeh NASSERI ◽  
Hossein AROUIEE ◽  
Shiva GOLMOHAMMADZADEH ◽  
Mahmoud Reza JAAFARI ◽  
Hossein NEAMATI
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Essential Oil ◽  
Inhibitory Concentration ◽  
Alternaria Solani ◽  
Pathogenic Fungi ◽  
Aspergillus Ochraceus ◽  
Malt Extract ◽  
Zataria Multiflora ◽  
Minimum Fungicidal Concentration

The present study aimed to determine minimum inhibitory concentration and minimum fungicidal concentration of the essential oil of Zataria multiflora to control Alternaria solani, Rhizoctonia solani, Rhizopus stolonifer, Aspergillus flavus, Aspergillus ochraceus and Aspergillus niger. The essential oil of Zataria multiflora was tested in vitro on PDA (malt extract agar medium) with eight concentrations: 0, 10, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900 and 1000 ppm. This investigation followed the completely randomized design (CRD) with three replications. GC-MS evaluations of the essential oil revealed that thymol (35%), carvacrol (34%), cymene-p (9.89%), gamma-terpinene (5.88%) and alpha-pinene (4.22%) were the main compounds of Zataria multiflora oil. The results showed that the essential oil of Zataria multiflora has antifungal activity; the lowest inhibition (75%) was observed in the A. niger, while the highest inhibition (95.3%) was observed in A. solani. Minimum inhibitory concentration for A. solani, R. solani, R. stolonifer, A. flavus, A. ochraceus and A. niger was 200, 200, 200, 300, 300 and 200 ppm respectively. In addition, the present results showed that minimum fungicidal concentration (MFC) for A. solani, R. solani, R .stolonifer, A. niger and A.ochraceus was 600, 400, 300, 900 and 700 ppm respectively and none of the tested concentrations were fatal for A. flavus. A. solani and R. solani showed a strong sensitivity to Zataria multiflora essential oil at all concentrations. Findings of the current study suggest that essential oils of Zataria multiflora could be used for control of postharvest phytopathogenic fungi on fruits or vegetables.

scholarly journals The The Effects of Cinnamaldehyde (Cinnamon Derivatives) and Nystatin on Candida Albicans and Candida Glabrata

2019 ◽  
Vol 7 (7) ◽  
pp. 1067-1070 ◽  
Author(s):  
Sedigheh Bakhtiari ◽  
Soudeh Jafari ◽  
Jamileh Bigom Taheri ◽  
Tahereh Sadat Jafarzadeh Kashi ◽  
Zahra Namazi ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Minimum Inhibitory Concentration ◽  
Candida Species ◽  
Candida Glabrata ◽  
Inhibitory Concentration ◽  
Fungal Infections ◽  
Fungal Growth ◽  
Minimum Fungicidal Concentration ◽  
Microdilution Method

BACKGROUND: Candida species are the most common opportunistic fungal infections. Today, cinnamon plants have been considered for anti-Candida properties. AIM: This study aimed to investigate the effectiveness of cinnamaldehyde extract (from cinnamon derivatives) on Candida albicans and Candida glabrata species and comparison with nystatin. MATERIAL AND METHODS: In this study, cinnamaldehyde and nystatin were used. The specimens included Candida albicans and Candida glabrata. Minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) were measured for each one by the microdilution method. This experiment was repeated three times. RESULTS: Cinnamaldehyde extract at a concentration of 62.5 μl/ml was able to prevent the growth of Candida albicans, at a concentration of 93.7 μl/ml, causing Candida albicans to disappear, at 48.8 μl/ml, to prevent the growth of Candida glabrata, and in the concentration of 62.5 μl/ml, causes the loss of Candida glabrata. In comparison, nystatin at 0.5 μg/ml concentration prevented the growth of Candida albicans, at concentrations of 1 μg/ml causing Candida albicans to be destroyed, at 4 μg/ml concentration to prevent the growth of Candida glabrata, and at a concentration of 8 μg/ml causes the loss of Candida glabrata. The results were the same every three times. CONCLUSIONS: Although cinnamaldehyde extract had an effect on fungal growth in both Candida albicans and Candida glabrata with a fatal effect; the effect on these two species was lower than nystatin.

Sign in / Sign up

Export Citation Format

Share Document