A study of some American fossil cycads; Part I, The male flower of Cycadeoidea

Clicks: 4
ID: 296338
1899
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Popular

Ranked #147 of 8,486 articles by views in american journal of science

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 8,486 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
The effect of six dopamine agonists including apomorphine, epinine, dopamine, piribedil, lergotrile and bromocriptine on the incorporation of [3H]tyrosine into dopamine was studied in slices and synaptosomes prepared from various brain areas containing dopamine terminals including striatum, nucleus accumbens, olfactory tubercle and medial basal hypothalamus. It was observed that all of these drugs were active in causing a decrease in dopamine synthesis in these various brain areas. The catecholamine agonists apomorphine, epinine and dopamine were more potent in inhibiting dopamine synthesis in the mesolimbic structures than in the striatum. On the other hand, apomorphine and epinine were less potent while dopamine was more potent in the medial basal hypothalamus. The ergoline drugs were weak agonists in all structures studied. It is concluded that autoreceptor regulation of dopamine synthesis is more active in the mesolimbic compared with the nigrostriatal dopamine pathway while autoreceptors may be absent in the median eminence.
Reference Key
openalex_W2313578871 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors G. R. Wieland
Journal american journal of science
Year 1899
DOI
10.2475/ajs.s4-7.39.219
URL
https://doi.org/10.2475/ajs.s4-7.39.219
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.