129 research outputs found
Studies of the Genus Bupleurum (Umbelliferae) from Nepal: (1) A Histological Study of Leaves and the Botanical Origin of Tibetan Crude Drug Tunak Chunga
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Medico-Botanical Studies of Ephedra Plants from the Himalayan Region: [Part 2] Geographical Variation in the Anatomical Characters of Herbal Stems,and the Estimation of the Original Locality of Tibetan Crude Drugs "TSHE" and "BALU"
åå ±ã§ïŒããã©ã€å°åã«ååžããEphedra gerardiana Wall. ex Stapf ãš E. pachyclada Boiss. ã¯ïŒçµç¹åé¡åŠçã«è質èã®æšªåé¢ã«ãããŠè¡šç®äžç¹ç¶çŸ€æ°ã®çžéã«ããæ確ã«åºå¥ãããããšãå ±åããïŒäžæ¹ïŒä»ã®å
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Studies on toad venom (3): effect of metals on the quality of toad venom torrefied on a metal plate.
é沢倧åŠå€§åŠé¢èªç¶ç§åŠç 究ç§çç掻æ§ç©è³ªç§åŠé沢倧åŠè¬åŠéšTo study the quality of toad venom dried on different metal plates by heating at 105 degrees C, each 20 g sample of fresh toad venom collected in Hei-Long-Jiang Province, China, was dried on (1) brass, (2) copper, (3) glass, (4) acrylic resins, (5) aluminum and (6) stainless-steel, respectively. Twelve bufadienolides, including bufalin and bufotalin, in each sample were then quantitatively analyzed by HPLC. The total levels of bufadienolides in 1000.0 mg of the dried samples were (1) > (2) > (3) > (4) > (5) > (6), varying from 303.44 mg to 420.72 mg. Besides, the color of dried venom became darker in the order of (2), (4), (6), (3), (1) and (5). Though (1) was not in good color, it was superior to the others in chemical quality. These results suggest that it is possible to dry toad venom in short period by heating it at a high temperature on a tray made of brass. This will be a better method for making high quality toad venom than the traditional method. Moreover, the removal of impurities in the fresh venom by the process of filtration through silk succeeded in raising the bufadienolides content significantly
Anatomical and Chemical Variations of Medicinal Plants: Related with Geographical Changes
Proceedings of EMEA 2001 in Beijing, 19-20 June 2001 in Beijing (China
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èŠããããThe research works on the Nepalese woody plants were carried out with 6 Japanese and 3 Nepalese scholars mainly in the tropical and subtropical areas from Sept.6 to Nov.18 in 1995, and Aug.21 to Oct.25 in 1996. The collected samples of about 1,000 small bark and wood piecies, and about 33,000 dried herbal specimens were brought to Japan for further studies. The bark samples for anatomical and chemical studies are stocked in the Faculty of Pharmaceutical Sciences, Kanazawa University (KANP), and some of wood samples for anatomical studies in Tohoku Univ.and others in the Museum of Nature and Human Activities, Hyogo. Besides, a full set of herbal speciemens are stocked in KANP,and an another set in Tokyo Univ. (TI), and others in relative herbaliums including the Dept.of Plant Resources (DPR) in Nepal.The remarkable thing of this research work is that the collection was made in tropical zone of Nepal. Though the southern plains in Nepal are generally utilized as the paddy fields, there are 5 national parks where the wild lives are well reserved by the government. Our research works were mainly done in these parks with permission of the Department of National Parks and Wild Life Conservation. Koshi Tappu Wild Life Reserve is good place for studying the natural renewal of river forest, the Baldia W.L.R.for the habitation of tropical and subtropical plants, Shukrapantha W.L.R.for the habitation of Shorea forest. The herbal specimens collected in these areas were very few in number, and the samples collected in this research are quite invaluable to complete the flora of Nepal.Because of the difficulty of making the collection of bark and wood samples, the scientific studies such as histotaxonomy and chemotaxonomy of woody plants have scarcely been done. Therefore, it is very difficult to identify the botanical origins of the crude drugs of both bark and wood origins in markets. Those samples collected in this research will be very important to make progress the anatomical and chemical studies in both pharmacognostical and taxonomical fields.ç 究課é¡/é åçªå·:07041132, ç 究æé(幎床):1995 â 1996åºå
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èŠã«å¿ããŠ,èãåãã«ããè³æºç¶æ³ã®èª¿æ»ã,ãšãã«,寧å€èªæ²»åºã§ã¯,æ œå¹å°ã«çããéèã®èª¿æ»ããè¡ãªã£ã. âæ¬å¹ŽåºŠã®èª¿æ»ã§æããã«ãªã£ãããšã¯,ããã¹ã¿ã³ã«ã¯ããªãŠè³æºããŸã è±å¯ã«ããããš,äžåœã«ãããŠã¯,ããªãŠå±æ€ç©ã¯æµ·å²žç·ã«ãçè²ããŠããããš,麻é»æ œå¹ã«ãããŠã¯éè察çãšç氎察çãä»åŸè§£æ±ºãããã¹ãåé¡ç¹ã§ããããšãªã©ãæããã«ãªã£ã. âåž°åœåŸ,ãããŸã§ã«èéããè³æãçšããŠ,æ€ç©åé¡åŠç,çµç¹åé¡åŠç,æåååŠç,ååçç©åŠçç 究ã«çæãã.ãŸã,å¢æ®ç 究ãèå¡©æ§ã®è©Šéšãªã©,æ œå¹ç 究ãéå§ãã.The current year, we surveyed the wild Ephedra plants in Pakistan, Inner Mongolia Autonomous Region, Xinjiang Uygur Autonomous Region as well as cultivated land of the plants in Ningxia Hui Autonomous Region.The survey of Pakistan was made by Mikage and Takahashi, from June 28^ through July 13^. Dr Tsuda, the emeritus professor of Kanazawa University also the visiting professor of Karachi University, guided us during the search. In Northern Aria of Pakistan, we collected 18 specimens in 1 8 different sites. The survey of Xinjiang Uygur Autonomous Region was conducted by Mr.Long Changfeng, a doctor course student of Kanazawa University under the direction of Professor Mikage. The end of the survey, Mikage and two collaborators(the expence of one of them was covered by COE) were joined them in Chongching, and we examined the result of the survey. After the research in Chongching, we started die survey in Inner Mongolia through August 12th. We went to Peking to rent a microbus by help of Professor Cai Shaoqing of Peking University. Mikage and a collaborator(expence was covered COE) surveyed mainly cultivated Ephedra plants in Ningxia Hui Autonomous Region from September 8^ through 15^.By these surveys, we could collect many Ephedra plant specimens at the investigated sites. The latitude, longitude and altitude of the sites were measured and the samples for DNA analysis were collected. On occasion, we did hearing from local peoples about situation of resource of Ephedra. We investigated weeds grown in cultivated land.From the results we obtained this year, we found the following interesting findings ; (1)The resource of Ephedra plants in Pakistan is still rich. (2)Some Ephedra plants grow on the seashore in China. (3)The most urgent points to be solved for cultivation of Ephedra plant are control of weed and irrigation.We started taxonomical, anatomycal, phytochemical as well as molecular biological researches on the Ephedra plants which we obtained through the surveys.ç 究課é¡/é åçªå·:13575010, ç 究æé(幎床):2001â2003åºå
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¥æããæ¬å±æ€ç©ç±æ¥ã®çè¬ã®åºæºãæããã«ããã 4.å¯å±±å»ç§è¬ç§å€§åŠå挢è¬ç 究ææ°æè¬ç©è³æ通æžæèµæšæ¬äžã®ããã-ã«ã§æ¡éãããRanunculaceae(ãã³ããŠã²)ç§æ€ç©æšæ¬ãæŽçããäžèŠ§è¡šãäœæããã1 . The results on Clematis plants: The anatomical study on the leaves of C.leiocarpa Oliv.and C.uncinata Champ. from China mainland were carried out. The result shows that it is not correct to regard the former species as a variety of the latter one. Moreover, the aerial parts of both species were proved as the ingredients of the Chinese crude drug "Wei-ling-xian" from Sichuan Province.2. The results on Aconitum plants: The tuberous roots of a Nepalese aconite, Aconitum orochryseum Stapf was studied morphologically and anatomically. As a results Aconitum was clarified as the botanical origin of Nirbisi circulated in Nepalese herb markets, not Delphinium species, and further more, some of Nirbisi produced in Nepal were derived from the tuberous roots of A.orochryseum.3. The results, on Coptis plants: 8 species and 3 varieties of Chinese and Japanese Coptis plants were studied histotaxonomically. The diagnostic characters were observed on the size of palisade parenchyma cells in the leaves, the frequency of sclerenchyma cells in the rhizome, etc. According to this result, the botanical origin of the crude drugs derived from Coptis plants in various markets were clarified.4. A list of Ranunculaceae specimens from Nepal in the herbarium of The Museum of Materia Medica, Toyama Medical and Pharmaceutical University, were made.ç 究課é¡/é åçªå·:63540548, ç 究æé(幎床):1988â1989åºå
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