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Study on the bacteriostatic action of Chinese herbal medicine on avian Trichosporon.

ABSTRACT: In this study, a strain of Trichosporon was isolated from white pseudomembranes and ulcers formed on mucous membranes of pigeon bursas and was identified through gene sequencing. Bacteriostatic actions of Acorus gramineus, Sophora flavescens, Polygonum hydropiper, and Chinese herbal mixture on this species were explored in vitro, and the minimum inhibitory concentration of herbal medicines against Trichosporon was determined through microdilution method. Therapeutic effects of herbal medicines on chickens infected by Trichosporon were studied, whose results showed that minimum inhibitory concentration of A. gramineus was 32 ?g/?L, that of S. flavescens was 2 ?g/?L, that of P. hydropiper was 120 ?g/?L, and that of Chinese herbal mixture was 36 ?g/?L. Antibacterial effects of S. flavescens were the best. In accordance with animal experiments, therapeutic effects of Chinese herbal medicines on infected chickens were better than those of fluconazole. The mortality rate of the Chinese herbal medicine treatment group was 33.33%, that of the fluconazole treatment group was 46.67%, and that of the Chinese medicine protection group was 23.33%. The longer the time of Chinese medicine treatments was, the better the treatment effects would be. Glutamic oxaloacetylase values of the serum and liver in the Chinese herbal medicine treatment group were both significantly lower than those of the nontreatment group. From the results, it can be seen that A. gramineus, S. flavescens, P. hydropiper, and Chinese herbal mixture have certain inhibitory effects on Trichosporon spp. Chinese herbal medicine protections in advance could reduce Trichosporon infections.

SUBMITTER: Zhang S

PROVIDER: S-EPMC7598122 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Study on the bacteriostatic action of Chinese herbal medicine on avian Trichosporon.

Zhang Shuang S Guo Yu Y Zhao Qianhui Q Xue Wenhui W Li Yurong Y Wu Xianjun X Huo Shuying S

Poultry science 20200624 9

In this study, a strain of Trichosporon was isolated from white pseudomembranes and ulcers formed on mucous membranes of pigeon bursas and was identified through gene sequencing. Bacteriostatic actions of Acorus gramineus, Sophora flavescens, Polygonum hydropiper, and Chinese herbal mixture on this species were explored in vitro, and the minimum inhibitory concentration of herbal medicines against Trichosporon was determined through microdilution method. Therapeutic effects of herbal medicines o ...[more]

PMID: 32867997

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Project description:Previously, a fungus was isolated from a diseased pigeon group clinically suspected of being infected with Candida. The fungus was subsequently identified as Candida glabrata using morphology, physiology, biochemistry, and molecular biology testing methods. In the present study, to determine the controlling effects of Chinese herbal medicine for C. glabrata, the bacteriostatic effects of the ethanol extracts Acorus gramineus, Sophora flavescens, Polygonum hydropiper, Cassia obtusifolia, Pulsatilla chinensis, Dandelion, and Cortex phellodendri on C. glabrata in vitro were analyzed. The results showed that the minimum inhibitory concentrations (MIC80) of Cortex phellodendri was 0.25 μg/μL. Meanwhile, that of S. flavescens was 32 μg/μL; C. obtusifolia was 56 μg/μL; A. gramineus and Polygonum hydropiper was 64 μg/μL; and P. chinensis was 112 μg/μL. However, MIC80 for Dandelion was undetectable. In addition, improved drug sensitivity tests revealed that colonies had grown after 24 h in the blank group, as well as the Polygonum hydropiper, P. chinensis, Dandelion, and ethanol groups. The colonies first appeared at the 48-hour point in the other drug-sensitive medium of Chinese herbal medicine. However, no colony growth was found in Cortex phellodendri medium, and the formation of the maximum colony diameter in that group was later than the blank group (e.g., 96 h in the blank group and 120 h in the Chinese herbal medicine group). It was observed that only 17 colony-forming units had grown in 125 μg/μL of the S. flavescens medium, which was significantly different from other groups. Also, the final colony diameter was significantly smaller than that of the other experimental groups. Therefore, it was determined that the A. gramineus, S. flavescens, Polygonum hydropiper, Cassia obtusifolia, P. chinensis, and Cortex phellodendri had certain inhibitory effects on the growth of the C. glabrata. Among those, it was observed that the Cortex phellodendri had the strongest inhibitory effects, followed by the S. flavescens. In the future, these Chinese herbal medicines are expected to be used to treat the fungal infections related to C. glabrata in poultry to improve production performance.

Project description:ObjectivesThis study aimed to summarise the current evidence from randomised control trials (RCTs) concerning treatment of patients with resistant hypertension with Chinese herbal medicine (CHM).DesignSeven databases, including the Cochrane Library, PubMed, EMBASE, CNKI, VIP, CBM and Wanfang, were systematically searched from their inception to March 2014 for RCTs investigating treatment of resistant hypertension in which CHM was used either as a monotherapy or in combination with conventional medicine versus placebo, no intervention or conventional medicine.ResultsFive trials containing 446 hypertensive patients were identified. The methodological quality of most trials was evaluated as generally low. All included trials compared CHM plus antihypertensive drugs with antihypertensive drugs alone for resistant hypertension. Formulations of CHM included tablet, decoction and injection. It was found that, compared with antihypertensive drugs alone, CHM (tablet) plus antihypertensive drugs resulted in clinically, but not statistically, significant reductions in systolic blood pressure (SBP; weighted mean difference (WMD)=-10.32 mm Hg; 95% CI -21.10 to 0.46; p=0.06) and diastolic blood pressure (DBP; WMD=-3.30 mm Hg; 95% CI -7.66 to 1.06; p=0.14). CHM (decoction) plus antihypertensive drugs also produced a clinically meaningful, but not statistically significant, reduction in SBP (WMD=-12.56 mm Hg; 95% CI -26.83 to 1.71; p=0.08), and did significantly decrease DBP (WMD=-7.89 mm Hg; 95% CI -11.74 to -4.04; p<0.0001). There were no significant differences in SBP (WMD=-3.50 mm Hg; 95% CI -8.95 to 1.95; p=0.21) and DBP (WMD=1.00 mm Hg; 95% CI -1.39 to 3.39; p=0.41) between CHM (injection) plus the antihypertensive drugs group and antihypertensive drugs alone. The safety of CHM remained uncertain.ConclusionsNo definite conclusions about the effectiveness and safety of CHM for resistant hypertension could be drawn. More rigorously designed trials are warranted.

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Study on the bacteriostatic action of Chinese herbal medicine on avian Trichosporon.

Publications

Study on the bacteriostatic action of Chinese herbal medicine on avian Trichosporon.

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