目的通过对丝状真菌的药敏试验,探讨两性霉素 B、伊曲康唑和伏立康唑对丝状真菌的体外抗菌活性,从而为临床用药提供依据。方法采用浓度梯度法测试两性霉素 B、伊曲康唑和伏立康唑对我院微生物科近两年内从临床送检标本中分离、鉴定并保...目的通过对丝状真菌的药敏试验,探讨两性霉素 B、伊曲康唑和伏立康唑对丝状真菌的体外抗菌活性,从而为临床用药提供依据。方法采用浓度梯度法测试两性霉素 B、伊曲康唑和伏立康唑对我院微生物科近两年内从临床送检标本中分离、鉴定并保存的62株丝状真菌的 MIC 值。结果烟曲霉菌、伏立康唑的最低抑菌浓度(MIC)均值为0.29μg/ml,两性霉素 B 的 MIC 均值是1.16μg/ml,伊曲康唑的 MIC 均值为5.88μg/ml;黄曲霉菌、两性霉素 B 具有较高的 MIC 均值(6.39μg/ml),伏立康唑的 MIC 均值较低,为0.22μg/ml;黑曲霉菌、伊曲康唑具有较高的 MIC 均值(19.75μg/ml),伏立康唑的 MIC 均值较低,为0.69μg/ml。对青霉菌,两性霉素 B 的 MIC 值较低,伊曲康唑和伏立康唑对3株青霉菌(占50%)的 MIC 值大于32μg/ml;毛霉菌和根霉菌,3种抗真菌药物均呈耐药倾向。结论 3种抗真菌药物对不同丝状真菌的 MIC 值存在差异,实验室应加强对丝状真菌的鉴定,并积极开展真菌药敏试验以指导临床正确、有效地抗真菌治疗。展开更多
Mostly candida resides as an opportunistic organism on epithelial surfaces of human being. However, under auspicious conditions can cause infections including serious life threatening invasive candidiasis with subsequ...Mostly candida resides as an opportunistic organism on epithelial surfaces of human being. However, under auspicious conditions can cause infections including serious life threatening invasive candidiasis with subsequent mortality particularly in immune deficit and hospitalized patients having co-morbids. Limited data are published on the prevalence of candidiasis, based on the researches conducted at few tertiary care settings which are not representing the overall disease burden in our country, Pakistan. Therefore, this study was conducted to evaluate the frequency and sensitivity patterns of candidiasis in our community. Methods: Out of total 1020 specimens, 130 clinical samples were identified as candidal positive, obtained from March to May 2018. These samples were isolated from vagina, oropharynx, urine, tracheal aspirates, pus, blood, tips of the intubations, wounds and fluids of the body cavities. Identification of candida, its species and antifungal sensitivity screening was done by Kirby Bauer’s disk diffusion method according to CLSI guide lines’ (M - 44 A2 series, 2009). Results: A significant majority, 80 (61.5%) of candidal strains were isolated from females with female to male ratio 8:5 and most of these isolates were obtained from high vaginal swabs (43.75%). Four candidal species (Candida albicans 80%, Candida tropicalis 10%, Candida glabrata 9.2% and Candida ciferrii 0.8%) were isolated from all positive specimens. Maximum number of the positive samples 52 (40%) were obtained from ICU patients. Sensitivity test of candidal positive samples revealed that commonly used azole antifungal drugs, fluconazole and voriconazole were highly resistant, with respective 57.7% and 70.8% resistance. Conclusion: Candidiasis is highly prevalent in our clinical set up and more frequently infecting females in comparison to males as most of the positive isolates were retrieved from HVS (high vaginal swabs). Still, C. albicans was found to be the most prevalent specie isolated among all candida samples. Our stud展开更多
Aim: Candida, an opportunistic organism is one of the commonest causes of hospital acquired infections among fungi. Currently available antifungal drugs have numerous adverse effects and drug-drug interactions (DDIs) ...Aim: Candida, an opportunistic organism is one of the commonest causes of hospital acquired infections among fungi. Currently available antifungal drugs have numerous adverse effects and drug-drug interactions (DDIs) along with increase in resistance over the time. Therefore, it is highly emergent to consider alternative treatments for candidal infections, having fewer adverse effects and is cost-effective. The current in-vitro study is undertaken to assess and compare the antifungal effects of the herbs, Berberis aristata (B. aristata, Darehald/Darhald) and Punica granatum (P. granatum, Pomegranate) with fluconazole and voriconazole, based on culture and sensitivity of candidal isolates. Materials and Methods: Ethanolic extracts of herbs (Berberis aristata and Punica granatum) and concentrations were formulated as per standard procedure. 130 samples were obtained for the study from in and out patients reported in clinical subsets of Ziauddin Hospital, Karachi from March to May, 2018. Samples were collected and grown according to the standard procedures like, wet mount test and gram’s staining. Species were identified by CHROM agar candida and API 20 C AUX methods. Sensitivity tests were performed by Kirby Bauer’s disc diffusion method according to CLSI guide lines M-44 A2, 2009. Data analysis was done by one-way ANOVA to compare the antifungal activities of drugs and herbs. Results: Mean inhibitory zones of herbs, B. aristata and P. granatum were highly significant against clinical candidal isolates with respective p-values of 0.00 and 0.02. Both of the herbs, B. aristata and P. granatum were found to be more sensitive, 98.5% and 97.7% respectively in comparison to fluconazole showing 42.3% and voriconazole showing 29.2% sensitivity against candidal isolates. The most resistant candidal specie was C. tropicalis that showed resistance against both fluconazole and voriconazole, contrary to that, this specie was highly sensitive to both of the herbs, showing sensitivity of 100% respective for Darehald and Pomeg展开更多
文摘目的通过对丝状真菌的药敏试验,探讨两性霉素 B、伊曲康唑和伏立康唑对丝状真菌的体外抗菌活性,从而为临床用药提供依据。方法采用浓度梯度法测试两性霉素 B、伊曲康唑和伏立康唑对我院微生物科近两年内从临床送检标本中分离、鉴定并保存的62株丝状真菌的 MIC 值。结果烟曲霉菌、伏立康唑的最低抑菌浓度(MIC)均值为0.29μg/ml,两性霉素 B 的 MIC 均值是1.16μg/ml,伊曲康唑的 MIC 均值为5.88μg/ml;黄曲霉菌、两性霉素 B 具有较高的 MIC 均值(6.39μg/ml),伏立康唑的 MIC 均值较低,为0.22μg/ml;黑曲霉菌、伊曲康唑具有较高的 MIC 均值(19.75μg/ml),伏立康唑的 MIC 均值较低,为0.69μg/ml。对青霉菌,两性霉素 B 的 MIC 值较低,伊曲康唑和伏立康唑对3株青霉菌(占50%)的 MIC 值大于32μg/ml;毛霉菌和根霉菌,3种抗真菌药物均呈耐药倾向。结论 3种抗真菌药物对不同丝状真菌的 MIC 值存在差异,实验室应加强对丝状真菌的鉴定,并积极开展真菌药敏试验以指导临床正确、有效地抗真菌治疗。
文摘Mostly candida resides as an opportunistic organism on epithelial surfaces of human being. However, under auspicious conditions can cause infections including serious life threatening invasive candidiasis with subsequent mortality particularly in immune deficit and hospitalized patients having co-morbids. Limited data are published on the prevalence of candidiasis, based on the researches conducted at few tertiary care settings which are not representing the overall disease burden in our country, Pakistan. Therefore, this study was conducted to evaluate the frequency and sensitivity patterns of candidiasis in our community. Methods: Out of total 1020 specimens, 130 clinical samples were identified as candidal positive, obtained from March to May 2018. These samples were isolated from vagina, oropharynx, urine, tracheal aspirates, pus, blood, tips of the intubations, wounds and fluids of the body cavities. Identification of candida, its species and antifungal sensitivity screening was done by Kirby Bauer’s disk diffusion method according to CLSI guide lines’ (M - 44 A2 series, 2009). Results: A significant majority, 80 (61.5%) of candidal strains were isolated from females with female to male ratio 8:5 and most of these isolates were obtained from high vaginal swabs (43.75%). Four candidal species (Candida albicans 80%, Candida tropicalis 10%, Candida glabrata 9.2% and Candida ciferrii 0.8%) were isolated from all positive specimens. Maximum number of the positive samples 52 (40%) were obtained from ICU patients. Sensitivity test of candidal positive samples revealed that commonly used azole antifungal drugs, fluconazole and voriconazole were highly resistant, with respective 57.7% and 70.8% resistance. Conclusion: Candidiasis is highly prevalent in our clinical set up and more frequently infecting females in comparison to males as most of the positive isolates were retrieved from HVS (high vaginal swabs). Still, C. albicans was found to be the most prevalent specie isolated among all candida samples. Our stud
文摘Aim: Candida, an opportunistic organism is one of the commonest causes of hospital acquired infections among fungi. Currently available antifungal drugs have numerous adverse effects and drug-drug interactions (DDIs) along with increase in resistance over the time. Therefore, it is highly emergent to consider alternative treatments for candidal infections, having fewer adverse effects and is cost-effective. The current in-vitro study is undertaken to assess and compare the antifungal effects of the herbs, Berberis aristata (B. aristata, Darehald/Darhald) and Punica granatum (P. granatum, Pomegranate) with fluconazole and voriconazole, based on culture and sensitivity of candidal isolates. Materials and Methods: Ethanolic extracts of herbs (Berberis aristata and Punica granatum) and concentrations were formulated as per standard procedure. 130 samples were obtained for the study from in and out patients reported in clinical subsets of Ziauddin Hospital, Karachi from March to May, 2018. Samples were collected and grown according to the standard procedures like, wet mount test and gram’s staining. Species were identified by CHROM agar candida and API 20 C AUX methods. Sensitivity tests were performed by Kirby Bauer’s disc diffusion method according to CLSI guide lines M-44 A2, 2009. Data analysis was done by one-way ANOVA to compare the antifungal activities of drugs and herbs. Results: Mean inhibitory zones of herbs, B. aristata and P. granatum were highly significant against clinical candidal isolates with respective p-values of 0.00 and 0.02. Both of the herbs, B. aristata and P. granatum were found to be more sensitive, 98.5% and 97.7% respectively in comparison to fluconazole showing 42.3% and voriconazole showing 29.2% sensitivity against candidal isolates. The most resistant candidal specie was C. tropicalis that showed resistance against both fluconazole and voriconazole, contrary to that, this specie was highly sensitive to both of the herbs, showing sensitivity of 100% respective for Darehald and Pomeg
