This study evaluated the antimicrobial activity of Endoseal TCS, an mineral trioxide aggregate-based root canal sealer, mixed with water-soluble mangostin derivatives (WsMD) of Garcinia mangostana L. (mangosteen) ethanol extract against Enterococcus faecalis and Staphylococcus aureus. The antibacterial activity of Endoseal TCS mixed with WsMD against three strains of E. faecalis and three strains of S. aureus was performed using agar diffusion test. The data showed that Endoseal TCS mixed with 0.115% WsMD had a zone of inhibition of 0.7 ± 0.2–2.4 ± 0.1 mm. The results suggest that Endoseal TCS mixed with WsMD of Garcinia mangostana L. ethanol extract is useful as a root canal sealer with antibacterial activity against E. faecalis and S. aureus .

The purpose of this study is to optimize the extraction conditions (time, pH, and temperature) for water-soluble dietary fiber (SDF) and solids from Opuntia ficus-indica (OFI) stems and to evaluate the functionality of the optimized extract. The maximum extraction yield was obtained when 100% distilled water was used, indicating that ethanol hampered the extraction. The extraction yields were lower at higher temperatures and lower pHs. The maximum extraction of SDF (27.92%) and solids (5.6 g) was achieved with a 7-h extraction at 50oC and pH 7.0, with desirability being 0.958. The stem extract obtained under the optimum extraction conditions had an antioxidant capacity of 118.10 mg vitamin C equivalents (VCE) using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. In a medium containing 30% extract, the growth of E. coli was reduced by 34%, while that of B. cereus was reduced by 23%. These results suggest that OFI stems can be used as a functional resource.

목적: 열수 추출한 차즈기(Perilla frutescens var. acuta)의 4주간 섭취에 의한 굴절이상과 시기능 변화에 미치는 영향을 알아보고자 연구하였다. 방법: 의료기기 임상시험심사위원회(IRB 허가번호: DSGOH-042)허가를 받은 후, 성인남녀 30명을 대상 으로 하였다. 차즈기추출물과 위약을 각각 섭취하고 2시간 후 스마트기기로 근거리 작업(VDT)을 2시간동안 실시하여 섭취 전과 후 결과를 비교하였다. 결과: 등가구면 굴절이상도 변화 비교 결과 PFA군에서는 유의하게 개선되는 경향을 보였다(p=0.001, p=0.000). 또한, PFA군은 위약에 비해 폭주근점과 조절근점이 유의한 차이로 개선효과를 보였다(p=0.007, p=0.001, p=0.001, p=0.000). 양안조절용이성 결과 PFA군은 유의하게 증가하였으나(p=0.021), 위약군에 서는 유의한 차이가 없었고, 두 섭취군 간 유의한 차이도 나타나지 않았다(p=0.876). 안전성 평가 결과에서 는 두 섭취군에서 이상반응 등이 관찰되지 않아 PFA 섭취가 인체에 안전함을 확인하였다. 결론: PFA는 위약에 비해 모양체근 활성도를 증가시켜 굴절이상도 증가를 억제하고 폭주력과 조절력, 안정피로 개선에 영향을 미치는 것으로 사료된다.

Salvia miltiorrhiza (Danshen) is perennial plant and commonly used in traditional Chinese medicine to treat numerous diseases like cardiovascular and cerebrovascular diseases, coronary heart disease, myocardial infarction, stroke and some viral diseases. Nevertheless, no study has been conducted on the antiviral properties of crude extract of Salvia miltiorrhiza against Influenza virus. In an attempt to identify new potential anti-influenza virus agents, 200 natural oriental herbal medicines were screened and we found that Salvia miltiorrhiza has a potential anti-influenza effect. Therefore, in this study, we investigated the protective effect of aqueous extract from Salvia miltiorrhiza against divergent influenza A subtypes using murine model of influenza A infection. Effective dose of aqueous extracts of Salvia miltiorrhiza in BALB/c mice displayed higher survival rate and lower lung viral titers when challenged with lethal doses of influenza A subtypes ({A/Aquatic bird/Korea/ W81/2005(H5N2)}, {A/PR/8/34(H1N1)}, {A/Aquatic bird/Korea/W44/2005(H7N3)} and {A/Chicken/ Korea/116/2004(H9N2)}). In vivo results exhibited that Salvia miltiorrhiza induced prophylactic effect in BALB/c mice against Influenza virus by disrupting viral replication or preventing viral infection by creating an antiviral state in the lungs. Taken together, the use of aqueous extracts of Salvia miltiorrhiza as an orally active antiviral agent, will be potential candidates for prophylactic treatments against Influenza A virus for humans and animals.