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Abstract  

Some pharmacological properties and especially diuretic action of medicinal plants are attributed to their elemental content. The elements chlorine, manganese, potassium and sodium are determined by instrumental neutron activation analysis in the dry samples of the following drugs: stigmata of Zea mays, leaves of Uva ursi, rhizome of Cynodon dactylon, whole plant of Ceterach officinarum as well as in infusions, decoction of the same drugs and in the water used for these preparations. It has been found that manganese and potassium are transferred partially into prepared solutions. Sodium is not transferred into solutions from any of these drugs while only chlorine is transferred partially into infusion of Zea mays. From these results it is concluded that the diuretic action of the examined drugs should not be attributed exclusively to the presence of their potassium and chlorine content but also to other constituents.

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Absztrakt:

A gyógynövényteák fogyasztása egyre népszerűbb, és nemcsak mint élvezeti cikk, hanem a gyógyszeres terápia kiegészítéseként is. A gyógynövények szerves hatóanyagai mellett a szervetlen ionok jelenléte is fontos a kedvező terápiás hatás kifejtésében. A szerző röviden összefoglalja néhány esszenciális fémion fontosságát, illetve mennyiségi értékeit a diabetes adjuváns terápiájában alkalmazható és a diuretikus hatású teák esetében. A diabetesben használt teák közös jellemzője, hogy mindegyikben mérhető mennyiségű króm található, valamint a legtöbb esszenciális elem (mint például a K, a Mg, a Mn és a Zn) koncentrációja jelentős, ami néhány fémionra ásványielem-forrásnak tekinthető. A diuretikus hatású gyógynövényteák kiemelkedő K-tartalmúak, azonban a diuresis szempontjából a nagy, 50 feletti K/Na mólarány a lényeges. Orv Hetil. 2018; 159(18): 713–719.

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Summary

A simple, selective, precise, and stability-indicating thin-layer chromatographic method has been developed and validated for analysis of some angiotensin II receptor antagonists (AIIRAs), namely, Losartan potassium (Los-K), Irbesartan (Irb), and Candesartan cilexetil (Cand) in the bulk drug and in pharmaceutical formulations (tablets). The method was based on using TLC plates pre-coated with silica gel G 60 on aluminum sheets as stationary phase and the development system was performed using chloroform:methanol (9:1) giving well separated and compact spots for all the studied drugs (R F values 0.41–0.53). The separated spots were characterized by viewing under the UV lamp, then visualized as orange spots by spraying with Dragendorff's reagent and measured by densitometry. Under the optimum chromatographic conditions, linear relationships were obtained between response and concentrations of each studied drug with high correlation coefficients (0.9985–0.9994). Good accuracy and precision were successfully obtained for the analysis of tablets containing each drug alone or combined with diuretic drug hydrochlorothiazide (HCTZ). No interferences could be observed from the co-formulated HCTZ, commonly encountered excipients present in tablets as well as the degradation products. The results were compared successfully with reported methods and can be used as a stability-indicating assay.

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element pharmacognostical study on diuretic drugs by neutron activation analysis. J. radioanal. Chem. , 54 , 103-112. Trace element pharmacognostical study on diuretic drugs by neutron activation analysis

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biodegradable and even can be used for enhancing biodegradation of some environmental contaminants [ 3, 4 ], hence it is more environmentally safe. Xipamide (XIP) is a diuretic drug used for treatment of hypertension. It has actions and uses similar to

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be used for enhancing biodegradation of some environmental contaminants [ 3, 4 ], hence it is more environmentally safe. Xipamide (XIP) is a diuretic drug used for treatment of hypertension. It has actions and uses similar to thiazide diuretics

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