Medical science monitor : international medical journal of experimental and clinical research · 2015
Association Between Changes in Serum 5-Hydroxy-Tryptamine Concentrations and Improvement in Clinical Symptoms in Primary Premature Ejaculation with Paroxetine Treatment.
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Guo Yu, Wang You, Wang Xi, Ye Gang, Jiang Yuanbin, Xiong Wei
Аннотация
BACKGROUND: This study aimed to investigate the association between changes in serum 5-hydroxy tryptamine (5-HT) concentrations and improvement in clinical symptoms in primary premature ejaculation with paroxetine treatment.
MATERIAL AND METHODS: A total of 142 men aged 18-65 years with a history of lifelong premature ejaculation and an intravaginal ejaculation latency time (IELT) <120 s were included in this study. Patients were divided into 3 groups according to IELT: IELT ≤30 s (group A), (IELT >30 s and ≤60 s (group B), and IELT >60 s and <120 s (group C). Patients in the 3 groups were administered paroxetine hydrochloride 20 mg/d for 8 weeks. Blood samples were obtained from the candidates in the screening period and after 8 weeks of treatment. Plasma 5-hydroxy-tryptamine (5-HT) concentrations were measured by enzyme-linked immunosorbent assay.
RESULTS: Reliable data from 125 patients were obtained. There were 41 patients in group A, 40 in group B, and 44 in Group C. IELT and serum 5-HT concentrations were significantly improved in the 3 groups after treatment (all P<0.001). The mean change and fold increase in IELT and the mean change in serum 5-HT concentrations in group A were significantly higher than those in groups B and C (all P<0.001). The mean change and fold increase in IELT and the mean change in serum 5-HT concentrations in group B were significantly higher than those in group C (all P<0.001). Significantly more patients in group A achieved clinical benefits than those in groups B and C (P<0.001).
CONCLUSIONS: Improvement in serum 5-HT concentrations has obvious association with primary premature ejaculation symptom improvement with paroxetine use.
MATERIAL AND METHODS: A total of 142 men aged 18-65 years with a history of lifelong premature ejaculation and an intravaginal ejaculation latency time (IELT) <120 s were included in this study. Patients were divided into 3 groups according to IELT: IELT ≤30 s (group A), (IELT >30 s and ≤60 s (group B), and IELT >60 s and <120 s (group C). Patients in the 3 groups were administered paroxetine hydrochloride 20 mg/d for 8 weeks. Blood samples were obtained from the candidates in the screening period and after 8 weeks of treatment. Plasma 5-hydroxy-tryptamine (5-HT) concentrations were measured by enzyme-linked immunosorbent assay.
RESULTS: Reliable data from 125 patients were obtained. There were 41 patients in group A, 40 in group B, and 44 in Group C. IELT and serum 5-HT concentrations were significantly improved in the 3 groups after treatment (all P<0.001). The mean change and fold increase in IELT and the mean change in serum 5-HT concentrations in group A were significantly higher than those in groups B and C (all P<0.001). The mean change and fold increase in IELT and the mean change in serum 5-HT concentrations in group B were significantly higher than those in group C (all P<0.001). Significantly more patients in group A achieved clinical benefits than those in groups B and C (P<0.001).
CONCLUSIONS: Improvement in serum 5-HT concentrations has obvious association with primary premature ejaculation symptom improvement with paroxetine use.