. Our results also suggest the impact of the TLR4 signaling pathway on the development of this inflammatory pathology and its associated vascular alterations. However, further investigations that deeply analyze the role of immunity in hypertension and end-organ damage will help develop therapies for this global disease. Lower urinary tract symptoms are common in all populations, with a reported prevalence of approximately 60%. Clinical management of LUTS is important because LUTS, although not life-threatening, can significantly diminish quality of life. LUTS consist of storage, voiding and post-micturition symptoms, with the storage symptoms being the most frequent among these. For the treatment of storage symptoms antimuscarinic agents are effective. However, there are issues associated with these drugs including a high burden of economic cost and significant adverse effects including dry mouth and constipation. The typical disease displaying storage symptoms as a specific clinical phenotype is overactive bladder. OAB is a hyperactive condition of the Danoprevir chemical information bladder defined as a complex symptom syndrome which includes urinary urgency, frequency and nocturia with no obvious pathology such as urinary tract infection, tumor or urolithiasis. Because of the difficulty in excluding all pathological disorders, clinically diagnosed OAB could involve misdiagnosed diseases of non-bacterial bladder inflammation such as interstitial cystitis/bladder pain syndrome. In support of this, several studies demonstrated the presence of inflammatory changes in bladders from patients with storage symptoms, as well as high frequency of storage symptoms in patients with diseases of bladder inflammation, indicating a close relationship between hyperactivity and inflammation in the bladder. Meanwhile, mechanisms underlying hyperactive bladder conditions are divided into neurogenic and non-neurogenic mechanisms. Indeed, anti-muscarinic agents, which target neurogenic mechanisms, have been reported to be not effective for storage symptoms in diseases of bladder inflammation such as chronic pelvic pain syndrome and IC/BPS. These data suggest that bladder inflammation could contribute to non-neurogenic mechanisms causing storage symptoms, but not neurogenic ones. Altered Detrusor Gap Junction Communications Induce Storage Symptoms Previous studies demonstrated that gap junction proteins in the urothelium or detrusor smooth muscle of bladders function as key regulators for non-neurogenic mechanisms of various hyperactive bladder conditions. However, the role of gap junctions PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/19660665 is still unclear in bladder inflammation. Gap junction channels provide a cytoplasmic continuity between adjacent cells allowing the intercellular exchange of ions and metabolites. Gap junctions consists of several connexins, and connexin 43 is one of the major components of gap junctions in bladders. Several studies indicating the relationship between inflammation and up-regulation of GJA1 in bladders strongly suggested that gap junction function was involved in pathological conditions underlying bladder inflammation. The purpose of this study was to elucidate the role of gap junctions, as non-neurogenic mechanisms of storage symptoms, in bladder inflammation. In this study, gap junction function was evaluated in a mouse cyclophosphamide-induced inflammatory bladder model. The mouse model displayed some features of storage symptoms including voiding behavior and increased spontaneous contraction o
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