With conventional intracellular recording methods, we investigated the mechanism of actions of reactive oxygen species (ROS) derived from hypoxanthine and xanthine oxidase (HX/XO) reactions on AH/type 2 myenteric neurons in the guinea pig distal colon. Of the 54 neurons to which HX/XO was applied, 32 neurons showed a transient membrane hyperpolarization(s) followed by a long-lasting membrane de...

Although most spinal cord injuries are anatomically incomplete, only limited functional recovery has been observed in people and rats with partial lesions. To address why surviving fibers cannot mediate more complete recovery, we evaluated the physiological and anatomical status of spared fibers after unilateral hemisection (HX) of thoracic spinal cord in adult rats. We made intracellular and e...

The measurement of amino acid-resolved hydrogen exchange (HX) has provided the most detailed information so far available on the structure and properties of protein folding intermediates. Direct HX measurements can define the structure of tenuous molten globule forms that are generally inaccessible to the usual crystallographic and NMR methods (C. Redfield review in this issue). HX pulse labeli...

INTRODUCTION The aim of this study was to evaluate the plasma levels of hypoxanthine (HX) and xanthine in the renal vein blood samples for prediction of delayed graft function (DGF). MATERIALS AND METHODS Two blood samples were taken from 47 kidney recipients, intraoperatively. The first sample was obtained from a peripheral vein before vascular anastomosis and the second from the allograft r...

Introduction: The aim of this study was to evaluate the plasma levels of hypoxanthine (HX) and xanthine in the renal vein blood samples for prediction of delayed graft function (DGF). Materials and Methods: Two blood samples were taken from 47 kidney recipients, intraoperatively. The first sample was obtained from a peripheral vein before vascular anastomosis and the second from the allograft r...

To investigate the determinants of protein hydrogen exchange (HX), HX rates of most of the backbone amide hydrogens of Staphylococcal nuclease were measured by NMR methods. A modified analysis was used to improve accuracy for the faster hydrogens. HX rates of both near surface and well buried hydrogens are spread over more than 7 orders of magnitude. These results were compared with previous hy...

The values of the first factor Hx(m) of the class number of the with cyclotomic field are tabulated for 120 composite rre's larger than 100. A conjecture concerning a divisibility property of Hx{m) is stated.

The homological niteness property F P 3 and the combinatorial property of having nite derivation type both are necessary conditions for nitely presented monoids to admit a nite convergent presentation. For monoids in general, the property of having nite derivation type is strictly stronger than the property F P 3. Here we show that for groups these two properties are equivalent. The proof explo...

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