Recently (K. Kawanaka, I. Tabata, and M. Higuchi. J. Appl. Physiol. 83: 429-433, 1997), we demonstrated that glucose transport activity after repeated 10-s-long in vitro tetani in rat epitrochlearis (Epi) muscle was negatively correlated with the postcontraction muscle glycogen concentration. Therefore, we examined whether high-intensity intermittent swimming, which depletes muscle glycogen to ...

The methanolic extract of leaves of Turnera ulmifolia L was evaluated for its effect on blood glucose in alloxan-induced diabetic and euglycemic rats. The extract were administered at three doses of 100, 200 and 400 mg/kg, p.o. Glibenclamide (10 mg/kg, p.o.) was used as standard for control group. In euglycemic rat, extract were administered at three doses of 100, 200 and 400 mg/kg, p.o. Extr...

Hepatic glycogen synthesis is impaired in insulin-dependent diabetic rats owing to defective activation of glycogen synthase by glycogen-bound protein phosphatase 1 (PP1). The identification of three glycogen-targetting subunits in liver, G(L), R5/PTG and R6, which form complexes with the catalytic subunit of PP1 (PP1c), raises the question of whether some or all of these PP1c complexes are sub...

To understand the day-to-day pathophysiology of impaired muscle glycogen storage in type 2 diabetes, glycogen concentrations were measured before and after the consumption of sequential mixed meals (breakfast: 190.5 g carbohydrate, 41.0 g fat, 28.8 g protein, 1253 kcal; lunch: 203.3 g carbohydrate, 48.1 g fat, 44.0 g protein, 1497.5 kcal) by use of natural abundance (13)C magnetic resonance spe...

Industrial effluent containing heavy metals, on entering aquatic environment causes biochemical disturbances in the fish. The present study deals with the toxicity of Zinc as (ZnSO4), as a component of industrial waste and its effect on tissue glycogen and protein level at 24, 48, 72 & 96 hrs respectively .The estimated glycogen and protein concentration in the tissuesgills, liver, kidney, ovar...

the methanolic extract of leaves of turnera ulmifolia l was evaluated for its effect on blood glucose in alloxan-induced diabetic and euglycemic rats. the extract were administered at three doses of 100, 200 and 400 mg/kg, p.o. glibenclamide (10 mg/kg, p.o.) was used as standard for control group. in euglycemic rat, extract were administered at three doses of 100, 200 and 400 mg/kg, p.o. extrac...

The present study was undertaken to evaluate the antidiabetic activity of methanol extract of Flacourtia jangomas (lour) in streptozotocin induced diabetic rats. In this study, the acute and subacute anti hyperglycaemic effect of the two different doses (200 and 400 mg/kg b.w.p.o) of plant extracts were investigated. Fasting blood glucose level, body weight and serum lipid profiles were evaluat...

Several carbohydrate (CHO)-loading protocols have been used to achieve muscle glycogen supercompensation and prolong endurance performance. This study assessed the persistence of muscle glycogen supercompensation over the 3 days after the supercompensation protocol. Trained male athletes completed a 6-day CHO-loading protocol that included cycle ergometer exercise and dietary manipulations. The...

Trehalose plays an important role in energy storage, metabolism, and protection from extreme environmental conditions in insects. Trehalose is the main blood sugar in insects, and it can be rapidly used as an energy source in times of need. To elucidate the mechanisms of the starvation response, we observed the effects of starvation on trehalose and glycogen, trehalase activity, and the relativ...

We tested the hypothesis that astrocytic glycogen sustains axon function during and enhances axon survival after 60 min of glucose deprivation. Axon function in the rat optic nerve (RON), a CNS white matter tract, was monitored by measuring the area of the stimulus-evoked compound action potential (CAP). Switching to glucose-free artificial CSF (aCSF) had no effect on the CAP area for approxima...