many powdery mildew fungi occur as anamorphic state on different host plants in guilan province, iran. the species have usually been identified as oidium spp. in order to identify teleomorphic species using anamorphic characteristics and host range, several infected plant specimens were collected from around guilan province during 2004-2011. based upon  the  results of the study 25 species were...

Due to the limitation of osteoporosis therapy, the alternative therapies from natural sources have been considered. In this study, we aimed to determine the antiosteoporotic effect of the combined extract of Morus alba and Polygonum odoratum leaves. Ovariectomized rats, weighing 200-220 g, were orally given the combined extract at doses of 5, 150, and 300 mg·kg(-1) BW for 3 months. At the end o...

BACKGROUND Polygonum chinense Linn. is a common medicinal plant in Southeast Asia and has been used in traditional medicine in Vietnam. The plant contains phytochemicals with various biological properties; however, its antiviral effect has not yet been demonstrated. This study was aimed to evaluate the anti-influenza virus activity of crude extracts of P. chinense, to characterize antiviral met...

The aim of the study was to define the relationship between the concentration of PAHs in sewage sludge at a particular location and their amount in various plant materials growing on it. The credibility of the results is enhanced by the fact that sewage sludge from two separate sewage-treatment plants were selected for their influence on the content of PAHs in three plant species growing on the...

Nghể bụi (Polygonum posumbu Buch.-Ham. ex D. Don) là loài cỏ dại mọc nơi đất ẩm ven rừng, suối, bờ sông ngòi. Theo kinh nghiệm dân gian cây này được sử dụng để trị lỵ, viêm dạ dày ruột, tiêu chảy, phong thấp. Trong nghiên cứu về thành phần hóa thực vật bằng các phương pháp sắc ký đã thu 4 hợp chất phân lập từ đoạn ethyl acetat của và xác định lần lượt acid gallic, myricetin, distichin, quercitr...

In a Perspective, Julie Garon and Walter Orenstein discuss Lessler and colleagues' modeling study on measles vaccination and the implications for triggered and routine immunization programs.

background: herbal medicine is a new complementary strategy for treating diseases such as cancer. however, its mechanism of action is not clear yet. this study investigates antitumor efficacy of polygonum avicular extract on mcf-7 cell line . methods: mcf-7 cells were treated with different concentrations of (50, 100, 150, 200, 250, 300,350 400 ng/âµl) polygonum avicular at different time inter...

Potato (Solanum tuberosum L.) is cultivated in India in a commercial scale and this crop is susceptible to various insect pests of which aphids (both Myzus persicae Sulzer and Aphis gossypii Glover) cause heavy damage especially by spreading virus diseases. Studies were made to evaluate efficacy of extracts from plants such as Pongamia pinnata L. and Nicotiana tabacum L. and Polygonum hydropipe...