{"title":"Model systems in iontophoresis--transport efficacy.","authors":"B H Sage","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":7082,"journal":{"name":"Acta pharmaceutica Nordica","volume":"4 2","pages":"123"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12553954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Basic principles of transport from topical preparations.","authors":"L O Sundelöf","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":7082,"journal":{"name":"Acta pharmaceutica Nordica","volume":"4 2","pages":"114"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12560661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Skin barrier function and the mechanism(s) of percutaneous penetration.","authors":"R H Guy, R O Potts, M L Francoeur","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":7082,"journal":{"name":"Acta pharmaceutica Nordica","volume":"4 2","pages":"115"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12560662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"How to optimize drug penetration through the skin.","authors":"B C Lippold","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":7082,"journal":{"name":"Acta pharmaceutica Nordica","volume":"4 2","pages":"117-8"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12560666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of terminal heat sterilization on the stability of phospholipid-stabilized submicron emulsions.","authors":"P R Chaturvedi, N M Patel, S A Lodhi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Parenteral emulsions similar in composition to the commercially available fat emulsions were prepared using a Microfluidizer. The relationship of pH and terminal heat sterilization by autoclaving on the stability of phospholipid-stabilized emulsions was evaluated. The stability of these formulations was determined by using droplet size and zeta potential measurements. It was found that the zeta potentials of emulsions stabilized by more purified phospholipid were lower in magnitude compared to those stabilized by less purified phospholipid. Furthermore, acidic emulsions (between pH 5.0 and 7.0) showed an increased droplet size upon autoclaving, whereas the emulsions adjusted to an alkaline pH (pH 8.0 to 10.0) did not show a significant change in their droplet sizes upon autoclaving. The zeta potentials of all the emulsions \"increased\" (in magnitude) upon autoclaving and achieved values between -40 and -50 mV. The results of our studies could be explained on the basis of hydrolysis of phosphatidylcholine at different pH values, leading to a breakdown of the film surrounding the oil droplet, which results in coalescence and/or cracking of the emulsions.</p>","PeriodicalId":7082,"journal":{"name":"Acta pharmaceutica Nordica","volume":"4 1","pages":"51-5"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12683774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J K Wold, B S Paulsen, T Haugli, A Nordal, M M Laane
{"title":"Increase in thebaine content of Papaver bracteatum Lindl. after colchicine treatment of seeds. Annual fluctuations in thebaine level of individual plants.","authors":"J K Wold, B S Paulsen, T Haugli, A Nordal, M M Laane","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>From colchicine-treated seeds of Papaver bracteatum Lindl. some poppy plants were obtained that developed capsules richer in thebaine than the controls. The individual poppies were analyzed for capsule thebaine content annually for eight successive years, the results revealing significant year-to-year differences. One of the poppies, X7, (ca 5% thebaine) developed capsules consisting partly of polyploid tissue during the first and second year. This plant was propagated vegetatively to give a series (the X7 series) of new P. bracteatum plants. The capsule thebaine content of these individuals differed markedly the first two years, whereupon the alkaloid production decreased and appeared to level out and reach a value still clearly higher than the controls (mean values 2.3% and 1.3%, respectively). From seeds of four of the thebaine-rich poppies of the X7 series, four new series of P. bracteatum plants were obtained. The capsule thebaine level of these was significantly lower than that of the mother plants.</p>","PeriodicalId":7082,"journal":{"name":"Acta pharmaceutica Nordica","volume":"4 1","pages":"31-4"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12683878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Local anaesthetics--comparison of in vitro and in vivo data.","authors":"A Nyqvist-Mayer","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":7082,"journal":{"name":"Acta pharmaceutica Nordica","volume":"4 2","pages":"120"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12560669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}