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Effects of Teton in the Treatment of Taste Disturbance
Abstract
Tezon® is a supplement containing trace elements (iron, zinc, copper, selenium, and other minerals). We presented this supplement for 10 taste disorder patients (32 to 72 years old, mean 56.3 years old, four males and six females). Serum copper/zinc ratios were improved and selenium levels were raised in all cases. The overall rate of improvement in all patients was 80% (eight cases). These results indicate that Tezon® may be useful for taste disorder patients.
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The therapeutic efficacy of orally given zinc gluconate on taste disorder was investigated by a double-blind study in 98 patients with a chief complaint of this disease. The subjects were divided into two 49-patient groups and were orally given zinc gluconate or the placebo for up to 4 months. Improvement of taste examination and subjective symptoms was analyzed in 65 of the subjects. Although no significant difference was detected between the two groups in overall efficacy, a significant superiority of zinc gluconate to placebo was observed in patients with idiopathic and zinc-deficient taste disorder. Comparison of the improvement by Ridit analysis showed a significant therapeutic superiority of zinc gluconate. In contrast, comparison of the degree of subjective symptomatic changes.
For human urine beryllium (Be), each sample (500 microl) was diluted (1+1) with Nash reagent (containing 0.2% (v/v) acetylacetone and 2.0 M ammonium acetate buffer at pH 6.0) and then a 20-microl volume of Triton X-100 (0.4%, v/v) aqueous solution was added. An aliquot (10 microl) of the diluted urine mixture was introduced into a graphite cuvette and was atomized according to a temperature program. The method detection limit (MDL, 3sigma) for Be was 0.37 microg/l in the undiluted urine sample and the calibration graph was linear up to 65.0 microg/l. Calibration graphs were prepared by the standard addition method. Accuracies of 98.6-102% were obtained when testing standard reference material (SRM 2670) freeze dried human urine samples. Precision (relative standard deviation, RSD) for urine Be was < or = 2.3% (withinrun, n = 5) and was < or = 3.0% (between-run, n = 3). For human urine and serum selenium (Se), samples (100 microl) were diluted with HNO3 (0.2%, v/v) to make a (1+1) dilution for urine analysis or a (1+4) dilution for serum analysis. An additional aliquot (10 microl) of Triton X-100 (0.1%, v/v) was added to each 200 microl of (1+1) diluted urine (or 20 microl of the Triton X-100 was added to each 500 microl of (1+4) diluted serum) sample. After the diluted sample mixture (10 microl) was introduced into a graphite cuvette, the corresponding chemical modifier (10 microl, containing Ni2+ + Pd + NH4NO3 in HNO3 (0.2%, v/v)) was added to it and the mixture was atomized. The MDL (3sigma) for Se in urine and in serum was 4.4 and 21.4 microg/l in undiluted sample, respectively, and the calibration graphs were linear up to 150 and 400 microg/l. Accuracies of urine Se were 98.9 - 99.4% by testing SRM 2670 (NIST) urine standards with RSD (between-run, n = 3) within 2.9%; and that of serum Se was 97.2% when testing a certified second-generation human serum (No. 29, #664) with RSD (between-run, n = 3) of 1.4%. The proposed method can be applied easily, directly, and accurately to the measurement of Be and Se in real samples (including six urine Se and four serum Se from patients of Blackfoot Disease in Taiwan).