Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:1.8.1.4 (diaphorase)
 2,754 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The phenotypic expression and anatomic distribution of nitrergic and peptidergic innervation in the developing rat heart was localized by reduced nicotinamide adenine dinucleotide phosphate diaphorase (NADPH-d) histochemistry and immunohistochemistry using antibodies against neuronal isoform of nitric oxide synthase (nNOS), neuropeptide Y (NPY) and calcitoningene-related peptide (CGRP). NPY-immunoreactive nerve fibers showed the earliest expression by 16 days of gestation, with preferential innervation of the nodal and perinodal areas, followed by the innervation of the valves and ventricles by postnatal day 7. NPY immunoreactivity was also localized to a large proportion of the intrinsic cardiac ganglia from 16 days of gestation onwards with a progressive increase in the number of neuronal cell bodies per ganglia with age. CGRP-positive nerve fibers appeared by 19 days of gestation and were less dense during the gestational and early postnatal periods, and showed a quantitative increase in density by 7 days, followed by a decrease by 3 weeks postnatal. None of the intrinsic ganglia were stained positive for CGRP, indicating the extrinsic sensory origin of these stained fibers. Nitrergic innervation paralleled the sensory innervation, with the cardiac ganglia and nerve fibers showing a positive labeling from 19 days of gestation onwards. NADPH-d and nNOS were partially co-localized. Double-label immunohistochemistry showed that a considerable proportion of sensory CGRP-immunopositive fibers were also immunoreactive for NOS. The results of the present study show that neuropeptides and nitric oxide are expressed by the late gestational period and that autonomic efferent innervation precedes sensory and nitrergic innervation in the developing heart.
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PMID:Nitrergic and peptidergic innervation in the developing rat heart. 1090 3

The effects of age on the dendritic tree of reduced nicotinamide adenine dinucleotide phosphate-diaphorase (NADPH-d)-positive neurons in the dorsolateral neuronal column of the periaqueductal gray (DLPAG) in the rat were examined, using NADPH-d histochemistry and computer-assisted analysis. In 26-month-old rats some of the neurons exhibited considerably branched dendrites, while others show amputation stumps, or local swellings in the initial dendritic portion. Quantitative analysis demonstrated that the number of dendritic segments in DLPAG increased with advancing age. The mean segment length and the mean length of the terminal segment significantly increased in 12-month-old rats compared to 3-month-old rats and decreased in 26-month-old rats in comparison to 12-month-old, as the reduction was significant for the terminal segments only. The total dendritic length of NADPH-d-stained neurons increased with aging. The increase was more pronounced in 12-month-old rats compared to 3-month-old rats and the difference was significant in 26-month-old rats. The number of the nodal vertices, Va and Vb, significantly increased between 12- and 26-month of age. The dendritic reorganization was considered a sign of compensatory mechanism counteracting the degenerative changes.
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PMID:Age-related changes in the NADPH-diaphorase-positive dendrites in the dorsolateral neuronal column of the periaqueductal gray in rat. 1108 6