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Metabolite concentrations and enzyme expressions involved in the methionine cycle. Serum concentrations of SAM (a), homocysteine (b), and relative mRNA levels of MAT2A (c), MAT2B (d), GNMT (e), AHCY (f), BHMT (g), and MTR (h) in testis tissues of male mice. Data were presented as mean ± SEM. Results were normalized to β‐actin
