Erdem Yesilada
Gazi University
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Publication
Featured researches published by Erdem Yesilada.
Journal of Ethnopharmacology | 2001
Ekrem Sezik; Erdem Yesilada; Gisho Honda; Yoshihisa Takaishi; Yoshio Takeda; Toshihiro Tanaka
Traditional medicine used in Central Anatolia; Ankara, Kayseri, Niğde and south-eastern parts of Karaman and Konya provinces have been studied. Two hundred and ninety one folk remedies obtained from 103 plant species belonging to 40 families and 4 animal species are reported with their vernacular names, parts used, methods of preparing remedies and therapeutic usage.
Life Sciences | 2002
Esra Küpeli; Müberra Koşar; Erdem Yesilada; K. Hüsnü Can Başer
Roots and barks of various Berberis species are used as folk remedy for the treatment of various inflammatory diseases such as lumbago, rheumatism and to reduce fever. Six isoquinoline alkaloids namely berberine, berbamine, palmatine, oxyacanthine, magnoflorine, and columbamine were isolated as the main components of alkaloidal fraction from the roots of Turkish Berberis species and effects were studied using various in vivo models in mice. All alkaloids inhibited inflammations in varying degrees, among them berberine, berbamine and palmatine were shown to possess significant and dose-dependent inhibitory activity against serotonin-induced hind paw oedema both on oral and topical applications and acetic acid-induced increase in vascular permeability on oral administration. Moreover, these three alkaloids were also shown to possess dose-dependent antinociceptive activity, which assessed by using the model based on the inhibition of p-benzoquinone-induced writhing movements as well as antipyretic activity on FCA-induced increased rectal temperature on subacute administration. However, all alkaloids induced gastric lesions in varying degrees.
Journal of Ethnopharmacology | 1995
Erdem Yesilada; Gisho Honda; Ekrem Sezik; Mamoru Tabata; Tetsuro Fujita; Toshihiro Tanaka; Yoshio Takeda; Yoshihisa Takaishi
Folk medicine in the inner region of the Taurus Mountains in south Anatolia has been studied; 256 remedies prepared from 124 plant and 3 animal species are listed. Data include vernacular names, the parts used, the methods of preparation of the drugs and the medicinal use.
Journal of Ethnopharmacology | 1999
Erdem Yesilada; Ekrem Sezik; Gisho Honda; Yoshihisa Takaishi; Yoshio Takeda; Toshihiro Tanaka
Folk medicine in northwest Anatolia has been studied and 116 remedies prepared from 67 plant and 8 animal species are described, each with vernacular names, methods of preparation and traditional uses.
Journal of Ethnopharmacology | 1996
Gisho Honda; Erdem Yesilada; Mamoru Tabata; Ekrem Sezik; Tetsuro Fujita; Yoshio Takeda; Yoshihisa Takaishi; Toshihiro Tanaka
Two hundred and one folk remedies of West Anatolia derived from 91 plant species in 40 families and 2 animal species are presented, each with vernacular names, method of preparation of drugs and traditional uses.
Journal of Ethnopharmacology | 1999
Erdem Yesilada; İlhan Gürbüz; Hirofumi Shibata
The anti-Helicobacter pylori effect of the extracts and fractions obtained from seven Turkish plants, which are used in folk medicine for the treatment of gastric ailments including peptic ulcers, were studied against one standard strain and eight clinical isolates of H. pylori by using the agar dilution method. Flowers of Cistus laurifolius and Spartium junceum, cones of Cedrus libani, herbs and flowers of Centaurea solstitialis ssp. solstitialis, fruits of Momordica charantia, herbaceous parts of Sambucus ebulus, and flowering herbs of Hypericum perforatum were evaluated in this study. Results showed that all except one extract from six of these plants showed activity against the microorganism with MICs between 1.95 and 250 microg/ml, with S. junceum being the only inactive species. Amongst the active plants the inhibitory properties of C. laurifolius were found prominent.
Journal of Ethnopharmacology | 1993
Erdem Yesilada; Gisho Honda; Ekrem Sezik; Mamoru Tabata; Katsumi Goto; Yasumasa Ikeshiro
The traditional utilization of plants as medicine in the Mediterranean region has been investigated. Field surveys were carried out among the people who live in the Taurus Mountains. Sixty-nine medicinal plants have been identified, which are listed with the vernacular names, the parts used, the methods of preparing the drugs and their traditional usages.
Journal of Ethnopharmacology | 2003
Nurgun Erdemoglu; Esra Küpeli; Erdem Yesilada
Ethanolic and aqueous extracts from seven plant species used in Turkish traditional medicine were evaluated for in vivo anti-inflammatory and antinociceptive activities; Helleborus orientalis Lam. roots and herbs, Juglans regia L. leaves, Laurocerasus officinalis Roemer leaves, Nerium oleander L. dried and fresh flowers and leaves, Rhododendron ponticum L. leaves, Rubus hirtus Walds. et Kit aerial parts and Rubus sanctus Schreber aerial parts and roots. All the plant extracts, except the aqueous extract of Rubus hirtus, were shown to possess significant antinociceptive activity in varying degrees against p-benzoquinone-induced abdominal contractions in mice. However, only the ethanolic extracts of Helleborus orientalis roots, Juglans regia leaves, Laurocerasus officinalis leaves, Nerium oleander dried and fresh flowers, and Rhododendron ponticum leaves exhibited potent anti-inflammatory activity against carrageenan-induced hind paw edema model in mice without inducing any gastric damage. Results of the present study confirmed the folkloric claim that all the selected materials to possess potent antinociceptive and anti-inflammatory activity.
Journal of Ethnopharmacology | 2002
Erdem Yesilada; Esra Küpeli
Extracts obtained from the roots and barks of various Berberis species are used as folk remedy worldwide for the treatment of various inflammatory ailments including lumbago, rheumatism and to reduce fever. Effects of the extracts and fractions from the roots of Berberis crataegina DC. (Berberidaceae) were studied using various in vivo models of inflammation in mice and rats and observed potent inhibitory activity against carrageenan- and serotonin-induced hind paw oedema, acetic acid-induced increased vascular permeability, castor oil-induced diarrhoea, and Freunds complete adjuvant-induced (FCA) arthritis models. Through bioassay-guided fractionation berberine was isolated as the main active ingredient. Moreover, a dose-dependent analgesic activity was determined, which assessed by using the model based on the inhibition of acetic acid-induced writhing reflexes, as well as antipyretic activity on FCA-induced increased body temperature. Acute and subchronic toxicity studies were also performed.
Economic Botany | 1995
Tetsuro Fujita; Ekrem Sezik; Mamoru Tabata; Erdem Yesilada; Gisho Honda; Yoshio Takeda; Toshihiro Tanaka; Yoshihisa Takaishi
Traditional medicine in the middle and west Black Sea regions: Amasya, Bilecik, Bolu, Çankin, Samsun, Sinop and Tokat provinces has been studied and 194 remedies obtained from 96 plant and 5 animal species are compiled. Vernacular names, parts used, methods of preparation, and medicinal usages are listed.AbstractOrta ve Bati Karadeniz Bölgelerinde Amasya, Bilecik, Bolu, Çankin, Samsun, Sinop ve Tokat illerinde halk tababeti incelenerek, 96 ’si bitkisel ve 5’i hayvansal olmak üzere 194 halk ilaci tespit edilmi§tir. Kullamlan materyalin mahalli ismi, tedavide kullanilan kisimlari, ilacin hazirlani§ §ekli ve tedavideki kullamli§ amaci He ilgili bilgiler liste halinde verilmi§tir.