ArticleInternational journal of impotence research
Therapeutic effect of combination of alagebrium (ALT-711) and sildenafil on erectile function in diabetic rats.
Article in International journal of impotence research. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 19 citations in OpenAlex.
- Erectile Dysfunction in Individuals with Type 1 Diabetes is Associated with Long-term Metabolic Control and Diabetic Complications: A Cross-Sectional Study.The International journal of angiology : official publication of the International College of Angiology, Inc · 2022Article
- The therapeutic effect of ALT-711 on erectile function in rats treated with high-level AGEs (advanced glycation end products) containing diet.International journal of impotence research · 2022Article
- Alagebrium and Complications of Diabetes Mellitus.The Eurasian journal of medicine · 2019Review
- Pomegranate juice causes a partial improvement through lowering oxidative stress for erectile dysfunction in streptozotocin-diabetic rat.International journal of impotence research · 2016Article
- Targeting advanced glycation with pharmaceutical agents: where are we now?Glycoconjugate journal · 2016Review
- Chronic administration of sildenafil improves erectile function in a rat model of chronic renal failure.Asian journal of andrologyArticle
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7 authors at 1 institution in 1 country.
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Abstract
Recently, the relationship between advanced glycation end products (AGEs) and erectile dysfunction (ED) has been reported. The present study aimed to investigate whether a combination of an AGE cross-link breaker (alagebrium/ALT-711) and sildenafil could enhance the erectile capacity in streptozotocin (STZ) diabetic rats. Additionally, we assessed the effect of that treatment option on some molecules that have been suggested to have crucial roles in AGE-related ED pathways. Four groups of animals were utilized: (1) age-matched control rats, (2) STZ-induced diabetic rats (40 mg kg(-1) i.p.), (3) STZ rats+sildenafil (5 mg kg(-1) p.o.), (4) STZ rats treated with a combination of sildenafil (5 mg kg(-1) p.o)+alagebrium/ALT-711 (10 mg kg(-1) p.o.) for the final 1 month of the 2 months of diabetes period. At 2 months after i.p. injection of STZ, all animals underwent cavernosal nerve stimulation (CNS) to assess erectile function. Penile tissue AGEs, MDA (malondialdehyde), cyclic guanosine monophosphate (cGMP) (ELISA), endothelial nitric oxide (NO) synthase (eNOS), inducible NO synthase (iNOS) (western blot), nuclear factor (NF)-κB, mitogen-activated protein (MAP) kinase (immunohistochemistry) and apoptosis (terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling) analyses were performed in all groups of rats. STZ diabetic rats had a significant decrease in erectile function as determined by the peak intracavernosal pressure (ICP) and total ICP (area under the erectile curve) after CNS when compared with control rats (P<0.05). The increase in both ICP and area under the erectile curve of STZ diabetic rats treated with a combination of sildenafil+alagebrium/ALT-711 as well as in STZ diabetic rats treated with sildenafil alone was significantly greater than STZ diabetic rats. Additionally, combination treatment decreased AGE, MDA, iNOS, NF-κB, MAP kinase and apoptosis levels, whereas it preserved cGMP contents in diabetic penile tissue. Decreased AGE, MDA, iNOS, NF-κB, MAP kinase and increased cGMP levels at the combination (sildenafil+alagebrium/ALT-711) therapy group increased both the peak ICP and total ICP to CNS in the STZ diabetic rats, which was similar to the response observed in control rats. These results may explain the role of AGEs in diabetes-related ED and the effect of an AGE cross-link breaker alagebrium/ALT-711+sildenafil therapy on some critical molecules related to AGE-related ED pathways.
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