PMID- 20185943 OWN - NLM STAT- MEDLINE DCOM- 20100610 LR - 20141120 IS - 1423-0275 (Electronic) IS - 0301-1569 (Linking) VI - 71 Suppl 1 DP - 2010 TI - Hormonal aspects of Meniere's disease on the basis of clinical and experimental studies. PG - 1-9 LID - 10.1159/000265113 [doi] AB - CONCLUSIONS: Endolymph homeostasis is thought to be mediated by the vasopressin-aquaporin-2 (VP-AQP2) system in the inner ear. Endolymphatic hydrops, the morphological characteristics of Meniere's disease (MD), seems to reflect the malregulation of the VP-AQP2 system in inner ear fluid. The elevation of plasma vasopressin (p-VP) level, which is often observed in MD and its related diseases, might be one of the causative factors underlying these diseases. PURPOSE OF REVIEW: Review of the role of the VP-AQP2 system in the inner ear fluid homeostasis and in the formation and development of endolymphatic hydrops. RECENT CLINICAL AND EXPERIMENTAL FINDINGS: A clinical survey has revealed that the p-VP level is often elevated in MD and its related diseases and that the increase in the p-VP level was closely linked to vertigo attacks in MD. Experimental studies have revealed that proteins and mRNAs of aquaporin-2 and vasopressin type 2 receptor were expressed in the stria vascularis of the cochlea and the epithelium of the endolymphatic sac, and that the volume of the endolymphatic compartment was mediated by the activity of the VP-AQP2 system in the inner ear. FAU - Takeda, Taizo AU - Takeda T AD - Department of Otolaryngology, Kochi Medical School, Kochi, Japan. takedat@kochi-u.ac.jp FAU - Takeda, Setsuko AU - Takeda S FAU - Kakigi, Akinobu AU - Kakigi A FAU - Okada, Teruhiko AU - Okada T FAU - Nishioka, Rie AU - Nishioka R FAU - Taguchi, Daizo AU - Taguchi D FAU - Nishimura, Masahiko AU - Nishimura M FAU - Nakatani, Hiroaki AU - Nakatani H LA - eng PT - Journal Article PT - Review DEP - 20100224 PL - Switzerland TA - ORL J Otorhinolaryngol Relat Spec JT - ORL; journal for oto-rhino-laryngology and its related specialties JID - 0334721 RN - 0 (Antidiuretic Hormone Receptor Antagonists) RN - 0 (Aquaporin 2) RN - 0 (Benzazepines) RN - 0 (Diuretics) RN - 11000-17-2 (Vasopressins) RN - 17OJ42922Y (mozavaptan) RN - 9FN79X2M3F (Lithium) SB - IM MH - Animals MH - Antidiuretic Hormone Receptor Antagonists MH - Aquaporin 2/*metabolism MH - Benzazepines/pharmacology MH - Diuretics/pharmacology MH - Ear, Inner/drug effects/*metabolism/physiopathology MH - Endolymph/*metabolism MH - Homeostasis MH - Humans MH - Lithium/pharmacology MH - Meniere Disease/drug therapy/*metabolism/physiopathology/psychology MH - Vasopressins/*blood MH - Water-Electrolyte Imbalance RF - 44 EDAT- 2010/03/10 06:00 MHDA- 2010/06/11 06:00 CRDT- 2010/02/27 06:00 PHST- 2010/02/27 06:00 [entrez] PHST- 2010/03/10 06:00 [pubmed] PHST- 2010/06/11 06:00 [medline] AID - 000265113 [pii] AID - 10.1159/000265113 [doi] PST - ppublish SO - ORL J Otorhinolaryngol Relat Spec. 2010;71 Suppl 1:1-9. doi: 10.1159/000265113. Epub 2010 Feb 24.