{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T15:30:27Z","timestamp":1787758227022,"version":"build-2784847793"},"reference-count":25,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"3","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2011,5]]},"abstract":"<jats:sec>\n                    <jats:title>Background and Objective:<\/jats:title>\n                    <jats:p>The present study was designed to elucidate the possible nitric oxide (NO) mechanism in the protective effect of antidepressants using mice model of chronic fatigue syndrome (CFS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods:<\/jats:title>\n                    <jats:p>\n                      Male albino laca mice were forced to swim for each 6 min session for 7 days and immobility period was measured on every alternate day (1\n                      <jats:sup>st<\/jats:sup>\n                      , 3\n                      <jats:sup>rd<\/jats:sup>\n                      , 5\n                      <jats:sup>th<\/jats:sup>\n                      , 7\n                      <jats:sup>th<\/jats:sup>\n                      ). After 7 days various behavioral tests (locomotor, mirror chamber, and plus maze tests for anxiety) were performed and biochemical estimations (lipid peroxidation, nitrite levels, GSH (reduced glutathione), and catalase activity) in mice brain were performed. Animals were pretreated with citalopram (5 and 10 mg\/kg) and imipramine (10 and 20 mg\/kg) daily for 7 days.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      The present study showed that continued forced swimming for 7 days caused chronic fatigue-induced anxiety-like behavior as assessed in mirror chamber, plus maze tests, and impairment in locomotor activity followed by oxidative damage (as evidenced by increased lipid peroxidation, nitrite levels, depleted reduced glutathione, and catalase activity) in animals. Seven days pretreatment with citalopram (5 and 10 mg\/kg) and imipramine (10 and 20 mg\/kg) significantly improved behavioral and biochemical alterations. Further, L-nitro-arginine methyl ester (L-NAME,5 mg\/kg) and methylene blue (MB, 10 mg\/kg) pretreatment with citalopram (5 mg\/kg) or imipramine (10 mg\/kg) potentiated their protective effect. However, l-arginine (100 mg\/kg) pretreatment with citalopram (5 mg\/kg) or imipramine (10 mg\/kg) reversed their protective effect as compared with their effect per se (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>The present study suggests that protective effect of citalopram and imipramine might be due to its NO modulation against chronic fatigue induced behavioral and biochemical alterations.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/0253-7613.81506","type":"journal-article","created":{"date-parts":[[2011,5,28]],"date-time":"2011-05-28T10:05:28Z","timestamp":1306577128000},"page":"324-329","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":8,"title":["Nitric oxide 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