Journal: Journal of Ovarian Research

Article Title: Gut microbiota-derived Tryptophanol driven by N-Carbamylglutamate alleviates premature ovarian failure through inhibiting oxidative stress

doi: 10.1186/s13048-026-02152-4

Figure Lengend Snippet: Tryptophanol treatment alleviated POF symptoms by inhibiting PI3K/AKT and MAPK pathways. A Experimental scheme. B Estrus status of mice ( n = 8). C Body weights of mice ( n = 8). D Ovary weights of mice ( n = 8). E Representative Ovary from the Control, the POF and the NCG groups mice with H&E and IHC staining. H&E scale bar = 200 μm; IHC scale bar = 100 μm. F Quantification of primordial, primary, secondary, antral follicles, corpora lutea and corpora atretica per ovary. n = 3 ovaries per each condition. Levels of FSH ( G ), LH ( H ), E 2 ( I ) in mouse serum ( n = 6). Levels of ROS ( J ), MDA ( K ), SOD ( L ), GSH-Px ( M ) in mouse ovaries ( n = 3–4). N Western blotting ( a ) and quantitative ( b ) analysis of proteins ( n = 3). O Litter sizes of mice ( n = 3). Data presented as the mean ± SD, statistical significance was determined using one-way or two-way ANOVA. * p < 0.05, ** p < 0.01. *** p < 0.001. Different lowercase letters indicate significant differences ( p < 0.05)

Article Snippet: To investigate the role of specific signaling pathways, the AKT activator SC79 (MCE, 5 μg/mL) or the MAPK activator Anisomycin (MCE, 10 μM) was added to the culture medium 1 h before downstream assays.

Techniques: Control, Immunohistochemistry, Western Blot

Journal: Journal of Ovarian Research

Article Title: Gut microbiota-derived Tryptophanol driven by N-Carbamylglutamate alleviates premature ovarian failure through inhibiting oxidative stress

doi: 10.1186/s13048-026-02152-4

Figure Lengend Snippet: Tryptophanol treatment alleviated POF by inhibiting PI3K/AKT and MAPK pathways in vitro . A Experimental scheme. B Different concentrations of Cy on GCs viability was assessed by CCK8 assay. C and E Different concentrations of Trp on GCs viability was assessed by CCK8 assay. D The effect of Trp on GCs cell viability following Cy treatment. The control and treatment groups were stained with DCFH-DA, the cells were washed and examined by fluorescence microscopy. Scale bar = 50 μm. F The fluorescence intensity of ROS in mouse GCs. G The level of MDA in mouse GCs. H Flow cytometry apoptosis analysis graph and cell death rate in different groups. The level of SOD ( I ), GSH-Px ( J ), and E 2 ( K ) in mouse GCs. ( L ) Western blotting ( a ) and quantitative ( b ) analysis of proteins ( n = 3). All values are presented as the mean ± SD ( n = 3). Different lowercase letters indicate significant differences compared to the control group ( p < 0.05)

Article Snippet: To investigate the role of specific signaling pathways, the AKT activator SC79 (MCE, 5 μg/mL) or the MAPK activator Anisomycin (MCE, 10 μM) was added to the culture medium 1 h before downstream assays.

Techniques: In Vitro, CCK-8 Assay, Control, Staining, Fluorescence, Microscopy, Flow Cytometry, Western Blot

Journal: Journal of Ovarian Research

Article Title: Gut microbiota-derived Tryptophanol driven by N-Carbamylglutamate alleviates premature ovarian failure through inhibiting oxidative stress

doi: 10.1186/s13048-026-02152-4

Figure Lengend Snippet: Activation of MAPK pathway abrogated the protective effect of Tryptophanol against POF in vitro . A Cell viability of mouse GCs. B Flow cytometry apoptosis analysis graph and cell death rate in different groups. C The level of MDA in mouse GCs. The level of SOD ( D ), GSH-Px ( E ), and E 2 ( F ) in mouse GCs. G Western blotting (a) and quantitative ( b ) analysis of proteins ( n = 3). All values are presented as the mean ± SD ( n = 3). Different lowercase letters indicate significant differences compared to the control group ( p < 0.05)

Article Snippet: To investigate the role of specific signaling pathways, the AKT activator SC79 (MCE, 5 μg/mL) or the MAPK activator Anisomycin (MCE, 10 μM) was added to the culture medium 1 h before downstream assays.

Techniques: Activation Assay, In Vitro, Flow Cytometry, Western Blot, Control