Table 8 Hypoglycemic and antitumor activities of heteroglycans in REISHI
Heteroglycana Total sugarb Uronic acidc Proteind Sugar compositione MWf [a]D Relative glucose level Antitumor activityj
Dose 0 h 7 h 24 hg Dose, i.p. Inhibition Complete regression on day 45
  % % % Fuc Xyl Man Gal Glu x 10-4 (NaOH) mg/kg i.p. mh m ± SEi % m ± SEi % mg/kg/days (%)  
Fa-1b 89.8 9.2 0.8 - 6 15 8 100 35 -67.4° 100 100 78±4** 75 88±2** 87 20 20 0/5
FA-2 76.3 14.8 0.9 ± 10 11 7 100     100 100 64±2** 62 83±8* 82 50 18 0/5
FA-3 72.4 15.0 0.9 - 12 6 3 100     100 100 63±4** 55 81±3* 78 50 62 2/5
FA-4 78.8 19.1 0.9 2 20 3 8 100     100 100 73±4** 63 104±6 100 40 16 0/5
FA-5 60.7 35.5 0.9 - 50 4 ± 100     100 100 73±6** 63 113±5 109 50 10 0/5
FII                     100 100 67±4** 55 77±5** 64 100 100 5/5
FII-1 77.0 10.3 6.9 2 1 2 3 100 1~3 -21.1° 100 100 120±4** 99 110±7 91 100 100 5/5
FIII-1                     100 100 58±3** 62 72±5** 68 100 85 4/5
FIII-1a 92.0 9.7 6.9 8 13 8 5 100 200 + 48.8° 100 100 60±4** 65 69±3** 65 100 100 5/5
FIII-1b 95.0 13.0 2.5 4 7 2 ± 100 7~10 + 28.9° 100 100 90±7* 80 106±4 99 100 100 5/5
FIII-2                     100 100 80±7** 71 83±6** 78 100 100 5/5
FIII-2a 32.0 5.2 40.6 12 16 14 ± 100 200 -96.4° 100 100 86±5** 75 70±5** 67 100 100 5/5
FIII-2b 61.0 7.6 17.5 27 26 18 ± 100 4~7 + 7.6° 100 100 72±2** 63 81±4** 78 100 100 5/5
FIII-3                     100 100 59±5** 51 86±3* 83 100 100 5/5
FIII-3a 66.0 9.1 6.2 8 9 11 2 100 3~6 -11.6° 100 100 60±1 60 80±3** 75 100 100 5/5
a FA: Water-soluble acidic heteroglycan fractions. e Molar ratio determined as alditol acetates by GLC.
FII: 3% NH4-oxalate soluble heteroglycan fractions. f Measured by a gel filtration method.
FIII: 5% NaOH soluble peptideglycan fractions. g Time after administration.
b Calculated as glucose by the phenol-sulfuric acid method. h Plasma glucose level at 0 h: 140 - 170 mg/dl.
c Calculated as glucuronic acid by a modified carbazol method. i Significantly different from control, *P < 0.05, **P < 0.01, n = 5.
d Lowry method or Kjeldahl method (N x 6.25). j Sarcoma 180/mice, i.p. method