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Increased Muscle Mass after Resistance Exercise Training and Ingestion of Silkworm Pupae Powder (Bombyx mori L.) in ICR Mice
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 Title & Authors
Increased Muscle Mass after Resistance Exercise Training and Ingestion of Silkworm Pupae Powder (Bombyx mori L.) in ICR Mice
Kim, Yiseul; Kim, Heebin; Jeon, Byungduk; Lee, Dong Woon; Ryu, Sungpil;
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Edible insects are an interesting alternative global food resource. The purpose of this study was to investigate whether ingestion of silkworm (Bombyx mori) pupae powder with and without resistance exercise training (isometric contraction training) increased muscle mass in ICR mice. To achieve this, 28 ICR mice were grouped into control (CON), resistance exercise training (EX), silkworm pupae powder ingested control (SP), and silkworm powder ingestion with resistance exercise training (SPEX) groups. The change in body weight ratio was significantly decreased in the EX and SPEX groups compared to the CON and SP groups. Total blood protein levels were the highest in SPEX mice compared to those in other groups. The albumin concentration increased only in the EX group. Blood GOT and GPT levels were not significantly affected. Changes in Akt and Gsk- protein expression were not significant but there was a tendency for Akt to increase and for Gsk- to increase following the ingestion of the powder. The size of the gastrocnemius muscle increased significantly in response to resistance exercise training only. Furthermore, the ingestion of silkworm pupae powder tended to increase muscle mass without significance. These results suggested that the ingestion of silkworm pupae powder with resistance exercise training might enhance muscle mass without hepatotoxicity. However, future study may be needed to obtained detailed results and practical suggestions.
Silkworm pupae;Resistance exercise;Skeletal muscle;Mouse;
 Cited by
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