Presence and distribution of histaminergic components in rat and bovine retina

Lourdes Arbonés; José García-Verdugo; Fernando Picatoste; Agustina García

doi:https://doi.org/10.1016/0197-0186(88)90108-8

Presence and distribution of histaminergic components in rat and bovine retina

Lourdes Arbonés, José García-Verdugo, Fernando Picatoste, Agustina García

Department of Biochemistry and Molecular Biology

Research output: Contribution to journal › Article › Research › peer-review

8 Citations (Scopus)

Abstract

The presence of histamine and its related enzymes, histidine decarboxylase and histamine N-methyltransferase and the subcellular distribution of the amine and of H1-receptors were studied in the retina of two mammalian species. Histamine is present in rat and bovine retinas in concentrations (113 ± 10 and 72 ± 9 ng/g wet tissue, respectively) similar to those found in the brain. Histological examination and release experiments with Compound 48/80 performed in rat retina indicate a non mast cell location for the amine. Histidine decarboxylase and histamine N-methyltransferase activities in rat and bovine retinas were also comparable to those found in brain cortex suggesting that histamine can be synthesized and catabolyzed in situ. Subcellular fractionation of bovine retina showed that both the amine and H1-receptors are concentrated in particulate fractions where small sized synaptosomes sediment, presumably derived from horizontal and amacrine cells. These results are in agreement with a neurotransmitter or neuromodulator role for histamine in cells of the retinal inner nuclear layer. © 1988.

Original language	English
Pages (from-to)	97-104
Journal	Neurochemistry International
Volume	13
DOIs	https://doi.org/10.1016/0197-0186(88)90108-8
Publication status	Published - 1 Jan 1988

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title = "Presence and distribution of histaminergic components in rat and bovine retina",

abstract = "The presence of histamine and its related enzymes, histidine decarboxylase and histamine N-methyltransferase and the subcellular distribution of the amine and of H1-receptors were studied in the retina of two mammalian species. Histamine is present in rat and bovine retinas in concentrations (113 ± 10 and 72 ± 9 ng/g wet tissue, respectively) similar to those found in the brain. Histological examination and release experiments with Compound 48/80 performed in rat retina indicate a non mast cell location for the amine. Histidine decarboxylase and histamine N-methyltransferase activities in rat and bovine retinas were also comparable to those found in brain cortex suggesting that histamine can be synthesized and catabolyzed in situ. Subcellular fractionation of bovine retina showed that both the amine and H1-receptors are concentrated in particulate fractions where small sized synaptosomes sediment, presumably derived from horizontal and amacrine cells. These results are in agreement with a neurotransmitter or neuromodulator role for histamine in cells of the retinal inner nuclear layer. {\textcopyright} 1988.",

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AU - Picatoste, Fernando

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N2 - The presence of histamine and its related enzymes, histidine decarboxylase and histamine N-methyltransferase and the subcellular distribution of the amine and of H1-receptors were studied in the retina of two mammalian species. Histamine is present in rat and bovine retinas in concentrations (113 ± 10 and 72 ± 9 ng/g wet tissue, respectively) similar to those found in the brain. Histological examination and release experiments with Compound 48/80 performed in rat retina indicate a non mast cell location for the amine. Histidine decarboxylase and histamine N-methyltransferase activities in rat and bovine retinas were also comparable to those found in brain cortex suggesting that histamine can be synthesized and catabolyzed in situ. Subcellular fractionation of bovine retina showed that both the amine and H1-receptors are concentrated in particulate fractions where small sized synaptosomes sediment, presumably derived from horizontal and amacrine cells. These results are in agreement with a neurotransmitter or neuromodulator role for histamine in cells of the retinal inner nuclear layer. © 1988.

AB - The presence of histamine and its related enzymes, histidine decarboxylase and histamine N-methyltransferase and the subcellular distribution of the amine and of H1-receptors were studied in the retina of two mammalian species. Histamine is present in rat and bovine retinas in concentrations (113 ± 10 and 72 ± 9 ng/g wet tissue, respectively) similar to those found in the brain. Histological examination and release experiments with Compound 48/80 performed in rat retina indicate a non mast cell location for the amine. Histidine decarboxylase and histamine N-methyltransferase activities in rat and bovine retinas were also comparable to those found in brain cortex suggesting that histamine can be synthesized and catabolyzed in situ. Subcellular fractionation of bovine retina showed that both the amine and H1-receptors are concentrated in particulate fractions where small sized synaptosomes sediment, presumably derived from horizontal and amacrine cells. These results are in agreement with a neurotransmitter or neuromodulator role for histamine in cells of the retinal inner nuclear layer. © 1988.

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