Case Age Sex Umami-taste sensitivity Measurement value (No. of test solution) Flow rate of Saliva (gum test: ml/10min) Weight change Systemic condition 1 69 M 5 → 2 3.1→ 6.6 -1kg → +1.5kg poor → good 2 62 F Scale Over → 2 6.2→12.0 -1kg → +1kg poor → good 3 69 F 5 → 2 25.8 -3kg → +0.5kg poor → good 4 74 F 5 → 2 15.8 -3kg → +0.5kg poor → good 5 75 F Scale Over → 2 13.2 -2kg → +0.5kg poor → good 6 77 F Scale Over → 3 23.6 -3kg → +1kg poor → good 7 78 F Scale Over → 2 7.6 → 11.6 -2kg → +1kg poor → good Umami-taste test solution: Monosodium Glutamate (MSG) (No. 1: 1 mM; No. 2: 5 mM; No. 3: 10 mM; No. 4: 50 mM; No. 5: 100 mM; No. 6: 200 mM). The umami-taste RT before and after treatment was measured on the glossopharyngeal innervated area. Scale Over: patient could not recognize umami taste by test solution of number 6.

Table 2: Changes in various clinical values for patients with umami taste disorders following treatment.