Effect of a Carbohydrate-Rich Diet on Rat Detrusor Smooth Muscle Contractility: An Experimental Study

Abstract

Objectives We aimed to investigate the effect of a carbohydrate-rich diet on detrusor contractility in rats. Materials and Methods Sprague-Dawley rats were randomized into two groups. The control group received regular food and water. The study group received carbohydrate-rich diet for six weeks. The rats' detrusor muscle was isolated for pharmacological and histopathological examinations. Results In the control and study groups, mean body weights were 431.5 ± 27.6 g and 528.0 ± 36.2 g, respectively (p < 0.001). Electrical stimulation of the detrusor strips of the control group resulted in gradual contraction. A decreased contractile response was shown in the study group. Acetylcholine in 10-7-10-3 molar concentration produced a decreased contractile response in the study group, compared to the control group (p < 0.01). The study group showed marked subepithelial and intermuscular fibrosis in the bladder. Conclusion Carbohydrate-rich diet causes marked subepithelial and extracellular fibrosis and changes in contractility in the detrusor within a six-week period. Changes have higher costs in therapeutic choices and correction of these changes remains difficult. Putting an end to carbohydrate-rich diet would seem to be more cost-effective than dealing with the effects of consuming it in high proportions which should be the national policy worldwide.

Ovarektomize Dişi Sıçanlarda 1,1-Dimetilbiguanit Hidroklorid (Metformin)'in Detrüsör Kas Kontraktil Yanıtı Üzerine Etkileri

“…Recent studies have shown that MET has a protective effect against cyclophosphamideinduced cystitis in mice (13). Bladder dysfunction is very common in diabetes mellitus (14) and obesity (15). Various clinical studies have shown that bladder dysfunctions in diabetic patients, such as detrusor overactivity, impaired detrusor contractility and reflex activity (14).…”