RESUMO
OBJECTIVE: To investigate the clinical effects of the L-carnitine-astaxanthin compound nutrients Menglankang (MLK) on idiopathic oligospermia (OS) and asthenospermia (AS). METHODS: This study included 73 cases of OS and 220 cases of AS treated with MLK once a bag, bid, for 3 successive months. Before and at 1, 2 and 3 months after treatment, we obtained and analyzed the semen parameters and sperm DNA fragmentation index (DFI) of the patients. RESULTS: Compared with the baseline, the OS patients showed remarkable increases after 1 and 2 months of treatment in the semen volume (ï¼»3.07 ± 1.47ï¼½ vs ï¼»3.26 ± 1.26ï¼½ and ï¼»3.30 ± 1.28ï¼½ ml), sperm concentration (ï¼»10.96 ± 6.09ï¼½ vs ï¼»16.74 ± 11.15ï¼½ and ï¼»17.56 ± 9.92ï¼½ ×106/ml, P < 0.05), total sperm count (ï¼»29.78 ± 17.48ï¼½ vs ï¼»52.98 ± 32.07ï¼½ and ï¼»57.67 ± 36.98ï¼½ ×106, P < 0.05) and the percentages of progressively motile sperm (PMS) (ï¼»39.8 ± 11.66ï¼½% vs ï¼»45.3 ± 14.03ï¼½% and ï¼»46.42 ± 10.69ï¼½%, P < 0.05) and morphologically normal sperm (MNS) (ï¼»1.71 ± 1.07ï¼½% vs ï¼»1.79 ± 0.91ï¼½% and ï¼»1.84 ± 0.96ï¼½%), and so did the AS patients in PMS (ï¼»19.23 ± 8.32ï¼½% vs ï¼»25.46 ± 13.86ï¼½% and ï¼»27.33 ± 12.88ï¼½%, P < 0.05). After 3 months of medication, the OS patients exhibited even more significant increases in the semen volume (ï¼»3.63 ± 1.39ï¼½ ml) (P < 0.05), sperm concentration (ï¼»20.56 ± 14.7ï¼½ ×106/ml) (P < 0.05), total sperm count (ï¼»66.35 ± 55.91ï¼½ ×106) (P < 0.05), PMS (ï¼»49.24 ± 13.45ï¼½%) (P < 0.05) and MNS (ï¼»2.59 ± 0.93ï¼½%) (P < 0.05), and so did the AS patients in the semen volume (ï¼»3.27 ± 1.42ï¼½ vs ï¼»3.85 ± 1.59ï¼½ ml, P < 0.05), PMS (ï¼»29.11 ± 13.58ï¼½%) (P < 0.05) and NMS (ï¼»2.01 ± 1.14ï¼½% vs ï¼»2.57 ± 1.15ï¼½%, P < 0.05). In comparison with the baseline, the sperm DFI was not significantly improved at 1 month after treatment, but remarkably decreased at 2 and 3 months in the OS patients (ï¼»25.87 ± 13.76ï¼½% vs ï¼»18.66 ± 10.83ï¼½% and ï¼»16.48 ± 11.46ï¼½%, P < 0.05) and the AS patients as well (ï¼»26.40 ± 12.28ï¼½% vs ï¼»19.35 ± 11.54ï¼½% and ï¼»15.32 ± 10.89ï¼½%, P < 0.05). CONCLUSIONS: The L-carnitine-astaxanthin compound nutrients Menglankang can significantly improve the semen quality of the patients with idiopathic oligospermia or asthenospermia.