The following study examined the effect of 15 degrees head-down tilt (HDT) on postexercise heat loss and hemodynamic responses. We tested the hypothesis that recovery from dynamic exercise in the HDT position would attenuate the reduction in the heat loss responses of cutaneous vascular conductance (CVC) and sweating relative to upright seated (URS) recovery in association with an augmented hem...

We inoculated 5 cm2 of clean chick pads, 5 g of clean pine shavings, and fresh unsanitized broiler breeder eggshell halves with a cell suspension of Campylobacter jejuni in physiological saline. Inoculation levels were 10(2), 10(3), or 10(4) cells per sample. The samples were allowed to remain at room temperature for 15, 30, or 60 min before addition of enrichment broth. When chick pad samples ...

Adenylate cyclase activity was investigated in either homogenate or particulate fractions from the frontal cerebral cortex of the gerbil following five experimental conditions of bilateral ischemia. After periods of 15 min ischemia, 15 min ischemia plus 15 min of recirculation or 60 min ischemia the enzyme generally displayed enhanced responses to GTP, norepinephrine (NE), dopamine (DA), NE + G...

The pattern of gastric emptying after truncal vagotomy and drainage is usually biphasic. An early rapid phase is followed by a characteristically abrupt transition to slow emptying. The mechanisms responsible for this pattern were studied in six dogs with truncal vagotomy and pyloroplasty, fitted with a proximal duodenal cannula. Gastric emptying was measured using gamma camera imaging of a rad...

Background: In previous studies, we reported that green tea decoction (GTD) cooked in boiling water for 15-min (15-min GTD) reduced body weight gain (BWG), glucose and lipid absorption and improved total antioxidant status (TAS) of rats fed normal or high-fat diet (HFD). However, the long-term effect of a mixture: 15-min GTD + lemon juice (LJ) on BWG, liver steatosis (LS), TAS, blood glucose an...

The effects of continuous stress and intermittent stress at short intervals on rat hypothalamic noradrenaline (NA) release were assessed by measuring the levels of a principal metabolite of NA, 3-methoxy-4-hydroxy-phenylethyleneglycol sulfate (MHPG-SO4) in male Wistar rats. The rats were exposed to one of five restraint stress conditions, unstressed (control), six 15 min intermittent stress per...

AIM To evaluate and compare ex vivo the decalcifying effect of 15% EDTA, 15% citric acid, 5% phosphoric acid and 2.5% sodium hypochlorite on root canal dentine. METHODOLOGY Two 2-mm-thick slices were cut from the coronal third of the root of 10 human incisors. Each slice was sectioned into two equal parts. Specimens were assigned to one of four groups (n = 10) for immersion in 20 mL of either...