id author title date pages extension mime words sentences flesch summary cache txt web-archive-org-2055 Romantic love and elevated nerve growth factor levels .html text/html 460 49 67 Romantic love and elevated nerve growth factor levels 11 Dec 2005 12 Nov 2020 Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Collection: 35_crawl associated with early-stage romantic love In the present study, we have examined whether the early romantic phase of a loving relationship could be associated with alterations in circulating levels of neurotrophins (NTs). Plasma levels of NGF, BDNF, NT-3 and NT-4 were measured in a total of 58 subjects who had recently fallen in love and compared with those of two control groups, consisting of subjects who were either single or were already engaged in a long-lasting relationship. In 39 subjects in love who-after 12-24 months-maintained the same relationship but were no longer in the same mental state to which they had referred during the initial evaluation, plasma NGF levels decreased and became indistinguishable from those of the control groups. Romantic love ./cache/web-archive-org-2055.html ./txt/web-archive-org-2055.txt