{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T10:53:07Z","timestamp":1791283987523,"version":"4.1.0"},"reference-count":48,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2007,1,30]],"date-time":"2007-01-30T00:00:00Z","timestamp":1170115200000},"content-version":"vor","delay-in-days":4534,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Pineal Research"],"published-print":{"date-parts":[[1994,9]]},"abstract":"<jats:sec><jats:label\/><jats:p>Edmonds KE, Stetson MH. Photoperiod and melatonin affect testicular growth in the marsh rice rat (<jats:italic>Orgzonys palustris<\/jats:italic>). J. Pineal Res. 1994: 17: 86\u201393. \u00a9Munksgaard 1994<\/jats:p><\/jats:sec><jats:sec><jats:title>Abstract<\/jats:title><jats:p>Reproduction in rice rats is subject to photoperiodic control and the pineal gland mediates this effect. We examined the effects of the pineal gland hormone melatonin on testicular weight when administered via implants, injections, and infusions. Testicular weight was modified by photoperiod and the size of the melatonin implant. Twenty\u2010millimeter implants suppressed testicular weight in rice rats housed on 12\u2010 and 16\u2010hr photoperiods, while those housed on a 14\u2010hr photoperiod were more sensitive to melatonin; in these animals 10\u2010 and 20\u2010mm implants inhibited testicular weight. Melatonin implants also prevented rice rats from responding to a change in photoperiod with the appropriate alteration of testicular growth. Melatonin injections inhibited testicular growth when administered before lights out on LD 14: 10, but not on LD 16: 8. Morning injections had no effect on either photoperiod. Finally, 12\u2010hr duration melatonin infusions inhibited testicular growth in pinealectomized rice rats on LD 16: 8, while 6\u2010hr duration infusions were without effect. These data show that the pineal, through the secretion of melatonin, is a phototransducing organ intimately involved in testicular growth in rice rats.<\/jats:p><\/jats:sec>","DOI":"10.1111\/j.1600-079x.1994.tb00118.x","type":"journal-article","created":{"date-parts":[[2007,2,2]],"date-time":"2007-02-02T21:49:37Z","timestamp":1170452977000},"page":"86-93","source":"Crossref","is-referenced-by-count":21,"title":["Photoperiod and melatonin affect testicular growth in the marsh rice rat (Oryzomys palustris)"],"prefix":"10.1111","volume":"17","author":[{"given":"Kent E.","family":"Edmonds","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Milton H.","family":"Stetson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,1,30]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0006-8993(92)90172-6"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-079X.1993.tb00903.x"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00446796"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00440108"},{"key":"e_1_2_1_6_1","first-page":"1","volume-title":"Mammalian Reproductive Biology","author":"BRONSON F. 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