• Parasites, Hosts and Diseases
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• 제52권3호
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• pp.243-249
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• 2014

Acanthamoeba spp. commonly cause Acanthamoeba keratitis which is typically associated with the wear of contact lenses. Therefore, finding an economic, efficient, and safe therapy of natural origin is of outmost importance. This study examined the in vitro lethal potential of ethyl acetate and methanol extracts of Helianthemum lippii (L.) (sun roses) against Acanthamoeba castellanii cysts isolated from patients with amoebic keratitis. Both extracts proved to be potent as regard to their lethal effects on A. castellanii cysts with comparable results to chlorhexidine. The ethyl acetate was more promising with cumulative lethality. It showed a highly significant lethal percentage along the duration of treatment. The analysis of the more potent ethyl acetate extract revealed the presence of 2.96 mg/100 g of total phenolics, 0.289 mg/100 ml of total flavonoids and 37 mg/100 mg of total tannins which highlighted their phytomedicinal role.

• Parasites, Hosts and Diseases
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• 제60권1호
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• pp.7-14
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• 2022

Acanthamoeba keratitis (AK) is a rare infectious disease and accurate diagnosis has remained arduous as clinical manifestations of AK were similar to keratitis of viral, bacterial, or fungal origins. In this study, we described the production of a polyclonal peptide antibody against the adenylyl cyclase-associated protein (ACAP) of A. castellanii, and evaluated its differential diagnostic potential. Enzyme-linked immunosorbent assay revealed high titers of A. castellanii-specific IgG and IgA antibodies being present in low dilutions of immunized rabbit serum. Western blot analysis revealed that the ACAP antibody specifically interacted with A. castellanii, while not interacting with human corneal epithelial (HCE) cells and other causes of keratitis such as Fusarium solani, Pseudomonas aeruginosa, and Staphylococcus aureus. Immunocytochemistry (ICC) results confirmed the specific detection of trophozoites and cysts of A. castellanii co-cultured with HCE cells. The ACAP antibody also specifically interacted with the trophozoites and cysts of 5 other Acanthamoeba species. These results indicate that the ACAP antibody of A. castellanii can specifically detect multiple AK-causing members belonging to the genus Acanthamoeba and may be useful for differentially diagnosing Acanthamoeba infections.

• 대한수의사회지
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• 제45권9호
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• pp.829-834
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• 2009

• 대한의생명과학회지
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• 제18권3호
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• pp.324-327
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• 2012

Acanthamoeba is a free-living amoeba that causes human infections, and recently the incidence of amoebic keratitis has increased among contact lens wearers. In order to investigate Acanthamoeba contamination of contact lens storage cases, a short survey was performed on 57 contact lens wearers, and Acanthamoeba was found in one contact lens storage case. To diagnose Acanthamoeba, the 18s small subunit ribosomal DNA (18s rDNA) gene was amplified by polymerase chain reaction (PCR), and subsequently, the isolate was identified as A. lugdunensis. This species was originally isolated from a freshwater pool in France, and was reported recently to be a cause of amoebic keratitis. This observation indicates the need for a large survey to investigate the extent of Acanthamoeba contamination, and suggests that contact lens wearers be aware of the importance of hygiene and of the implications of Acanthamoeba infection.

• 대한약침학회지
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• 제10권1호통권22호
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• pp.17-21
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• 2007

Objective : This experimental study was performed to investigate the effect of Coptidis rhizoma extract compared with quantity on Pseudomonas aeruginosa that induce keratitis. Methods : MIC was measured by dropping to 50 ${\mu}l$ according to density Coptidis rhizoma extract(100%, 10%, 1%, 0.1%) compared with quantity(40g, 80g, 120g, 160g). Anti-bacterial potency was measured by the size of inhibition zone with change of volume. Results : MIC on Pseudomonas aeruginosa in Coptidis rhizoma extract compared with quantity(40g, 80g, 120g, 160g) was not showed all samples(100%, 10%, 1%, 0.1%). Conclusions : Coptidis rhizoma extract compared with quantity was not showed anti-bacterial potency on Pseudomonas aeruginosa. The results differ that Coptidis rhizoma extract was showed anti-bacterial potency in 1999 year. Anti-bacterial Potency of Coptidis rhizoma extract compared with quantity on Pseudomonas aeruginosa must be studied.

• 한방안이비인후피부과학회지
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• 제19권2호
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• pp.71-76
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• 2006

Objective : This experimental study was performed to investigate the effect of Coptidis rhizoma extract on Staphylococcus aureus and Staphylococcus epidermidis that induce keratitis. Methods : MIC was measured by flowing to $50{\mu}l$ according to density Coptidis rhizoma extract(100%, 10%, 1%, 0.1%). Anti-bacterial potency was measured by the size of inhibition zone with change of volume. Results : 1. MIC on Staphylococcus aureus in Coptidis rhizoma extract was 100%, $50{\mu}l$ and anti-bacterial potency increase compare with quantity. 2. MIC on Staphylococcus epidermidis in Coptidis rhizoma extract was 100% & 10%, $50{\mu}l$ and anti-bacterial potency increase compare with quantity. Conclusions : The Present author think that Coptidis rhizoma extract must be made a new eye drops.

• 대한약침학회지
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• 제13권2호
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• pp.75-83
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• 2010

Objectives : This experimental study was performed to investigate antibiosis of decoctions made by Cassiae Semen(CaS), Celosiae Semen(CeS) and Buddlejae Flos(BF). Methods : Decoctions made by CaS. CeS and BF were prepared. After administering decoctions made by CaS. CeS and BF on bacterial species(Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, Aspergillus niger, Fusarium oxysporum, Condida albicans) which cause Keratitis, the size of inhibition zone and MIC(Minimum Inhibition Concentration) were measured Results : The inhibition zone on bacterial species didn't appear, after administering decoctions made by CaS, CeS and BF. Conclusions : This experimental study is showed that decoctions made by CaS, CeS and BF don't have antibiosis on bacterial species which cause Keratitis.

• 대한약침학회지
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• 제9권2호
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• pp.87-92
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• 2006

Objective : This experimental study was performed to investigate the effect of Soyum Herbal-acupuncture, Hwangryunhaedoktang & Coptidis rhizoma on Staphylococcus aureus that induce keratitis. Methods : MIC was measured by dropping to $50\;{\mu}l$ according to density Soyum Herbal-acupuncture, Hwangryunhaedoktang & Coptidis rhizoma(100%, 10%, 1%, 0.1%). Anti-bacterial potency was measured by the size of inhibition zone with change of volume. Results : 1. MIC on Staphylococcus aureus in Soyum Herbal-acupuncture disappear all sample. 2. MIC on Staphylococcus aureus in Hwangryunhaedoktang disappear all sample. 3. MIC on Staphylococcus aureus in Coptidis rhizoma was 100%, $50\;{\mu}l$ and anti-bacterial potency increase compare with quantity. Conclusions : The present author think that Soyum Herbal-acupuncture must be extracted a new method for anti-bacterial potency and Coptidis rhizoma was made Herbal-acupuncture for eye drops.

• 대한약침학회지
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• 제9권2호
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• pp.99-103
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• 2006

Objective : This experimental study was performed to investigate the effect of Hwangryunhaedoktang Herbal-acupuncture & extract on Staphylococcus aureus and Staphylococcus epidermidis that induce keratitis. Methods : MIC was measured by dropping to $50{\beta}^{\circ}$ according to density Hwangryunhaedoktang Herbal-acupuncture & extract(100%, 10%, 1%, 0.1%). Anti-bacterial potency was measured by the size of inhibition zone With change of volume. Results : 1. MIC on Staphylococcus aureus in Hwangryunhaedoktang Herbal-acupuncture & extract were not disappear all sample. 2. MIC on Staphylococcus epidermidis in Hwangryunhaedoktang Herbal-acupuncture & extract were not disappear all sample. Conclusions : The present author think that Hwangryunhaedoktang Herbal-acupuncture must be extract a new method for anti-bacterial potency.

• 대한약침학회지
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• 제9권2호
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• pp.73-77
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• 2006

Objective : This experimental study was performed to investigate the effect of Soyum Herbal-acupuncture on Staphylococcus aureus and Staphylococcus epidermidis that induce keratitis. Methods : MIC was measured by dropping to $50\;{\mu}l$ according to density Soyum Herbal-acupuncture(100%, 10%, 1%, 0.1%). Antibacterial potency was measured by the size of inhibition zone with change of volume. Results : 1. MIC on Staphylococcus aureus in Soyum Herbal-acupuncture disappear all sample. 2. MIC on Staphylococcus epidermidis in Soyum Herbal-acupuncture disappear all sample. Conclusions : The present author think that Soyum Herbal-acupuncture must be extract a new method for anti-bacterial potency.