Journal: Poultry Science

Article Title: Gut microbiota-derived taurolithocholic acid modulates myofiber-type switching via p38 MAPK/PGC-1α signaling underlying breed differences between Arbor Acres and Taoyuan chickens

doi: 10.1016/j.psj.2026.106914

Figure Lengend Snippet: Comparative analysis of growth performance and pectoral muscle development of postnatal broiler chickens (n = 6). A The sampling time of AA chickens at day 1 after hatching (D1), D7, D14, D21, D28, D42, D56 and TY chickens at D1, D7, D14, D21, D28, D42, D56, D77, D105. B The changes in body weight of AA and TY chickens. C The changes in pectoral muscle weight of AA and TY chickens. D Immunofluorescence staining of myofibers with MYH1A and MYH7B of AA and TY chickens. Scale bars: 20 μm. E Statistical analysis of immunofluorescence staining density values for pectoral muscle fibers in AA and TY chickens. Data were shown as mean ± SD; * P < 0.05, ⁎⁎ P < 0.01, ⁎⁎⁎ P < 0.001.

Article Snippet: Following blocking with 1% BSA, the sections were incubated with the primary antibody MYH1A (1:100, F59, DSHB, USA) and the AF647-labeled goat anti-mouse secondary antibody (1:500, A0473, Beyotime), with the primary antibody MYH7B (1:100, S58, DSHB) and the FITC-labeled goat anti-mouse secondary antibody (1:500, A0568, Beyotime).

Techniques: Sampling, Immunofluorescence, Staining

Journal: Poultry Science

Article Title: Gut microbiota-derived taurolithocholic acid modulates myofiber-type switching via p38 MAPK/PGC-1α signaling underlying breed differences between Arbor Acres and Taoyuan chickens

doi: 10.1016/j.psj.2026.106914

Figure Lengend Snippet: Intestinal microbiota transplantation (IMT) affects the growth and pectoral muscle development of chickens. A IMT experimental design. B The variation of body weight of AA and TY chickens during D1 to D28 (n = 6). C Pectoral muscle weight of AA and TY chickens at D21 and D28 (n = 12). d -E Morphology of the myofibers stained by hematoxylin and eosin and the statistics of muscle fiber diameter (MDia) and muscle fiber density (MDen) at D21( D ) and D28 ( E ). F-G The mRNA expression of MYH1A and MYH7B in the pectoral muscle at D21 ( F ) and D28 ( G ) (n = 6). Data were shown as mean ± SD; * P < 0.05, ⁎⁎ P < 0.01, ⁎⁎⁎ P < 0.001.

Article Snippet: Following blocking with 1% BSA, the sections were incubated with the primary antibody MYH1A (1:100, F59, DSHB, USA) and the AF647-labeled goat anti-mouse secondary antibody (1:500, A0473, Beyotime), with the primary antibody MYH7B (1:100, S58, DSHB) and the FITC-labeled goat anti-mouse secondary antibody (1:500, A0568, Beyotime).

Techniques: Transplantation Assay, Staining, Expressing

Journal: Poultry Science

Article Title: Gut microbiota-derived taurolithocholic acid modulates myofiber-type switching via p38 MAPK/PGC-1α signaling underlying breed differences between Arbor Acres and Taoyuan chickens

doi: 10.1016/j.psj.2026.106914

Figure Lengend Snippet: TLCA regulates mitochondrial biogenesis and altered myofiber type composition through the p38 MAPK/PGC-1α signaling pathway. A Cell viability of cells treated with different concentrations of TLCA for 24 h (n = 10). B & F The mRNA expression of MYH1A and MYH7B (n = 6). C & G Intracellular enzymatic activities of succinate dehydrogenase (SDH) and lactate dehydrogenase (LDH), ATP content and mitochondrial DNA (mtDNA) content (n = 6). D & H The mRNA expression of HK1, GPI, PGAM1, PGK1, PYGL, PGC-1α, NRF1 and TFAM (n = 6). E The protein expression of PGC-1α, p38 MAPK and phosphorylation p38 MAPK (n = 3). I The protein expression of PGC-1α (n = 3). Data were shown as mean ± SD; *Represents significant difference when compared with 0 μM TLCA or CON group, and # represents significant difference when compared with TLCA group. *& # P < 0.05, ⁎⁎ & ## P < 0.01, ⁎⁎⁎ & ### P < 0.001.

Article Snippet: Following blocking with 1% BSA, the sections were incubated with the primary antibody MYH1A (1:100, F59, DSHB, USA) and the AF647-labeled goat anti-mouse secondary antibody (1:500, A0473, Beyotime), with the primary antibody MYH7B (1:100, S58, DSHB) and the FITC-labeled goat anti-mouse secondary antibody (1:500, A0568, Beyotime).

Techniques: Expressing, Phospho-proteomics

Journal: Poultry Science

Article Title: Gut microbiota-derived taurolithocholic acid modulates myofiber-type switching via p38 MAPK/PGC-1α signaling underlying breed differences between Arbor Acres and Taoyuan chickens

doi: 10.1016/j.psj.2026.106914

Figure Lengend Snippet: Comparative analysis of growth performance and pectoral muscle development of postnatal broiler chickens (n = 6). A The sampling time of AA chickens at day 1 after hatching (D1), D7, D14, D21, D28, D42, D56 and TY chickens at D1, D7, D14, D21, D28, D42, D56, D77, D105. B The changes in body weight of AA and TY chickens. C The changes in pectoral muscle weight of AA and TY chickens. D Immunofluorescence staining of myofibers with MYH1A and MYH7B of AA and TY chickens. Scale bars: 20 μm. E Statistical analysis of immunofluorescence staining density values for pectoral muscle fibers in AA and TY chickens. Data were shown as mean ± SD; * P < 0.05, ⁎⁎ P < 0.01, ⁎⁎⁎ P < 0.001.

Article Snippet: Following blocking with 1% BSA, the sections were incubated with the primary antibody MYH1A (1:100, F59, DSHB, USA) and the AF647-labeled goat anti-mouse secondary antibody (1:500, A0473, Beyotime), with the primary antibody MYH7B (1:100, S58, DSHB) and the FITC-labeled goat anti-mouse secondary antibody (1:500, A0568, Beyotime).

Techniques: Sampling, Immunofluorescence, Staining

Journal: Poultry Science

Article Title: Gut microbiota-derived taurolithocholic acid modulates myofiber-type switching via p38 MAPK/PGC-1α signaling underlying breed differences between Arbor Acres and Taoyuan chickens

doi: 10.1016/j.psj.2026.106914

Figure Lengend Snippet: Intestinal microbiota transplantation (IMT) affects the growth and pectoral muscle development of chickens. A IMT experimental design. B The variation of body weight of AA and TY chickens during D1 to D28 (n = 6). C Pectoral muscle weight of AA and TY chickens at D21 and D28 (n = 12). d -E Morphology of the myofibers stained by hematoxylin and eosin and the statistics of muscle fiber diameter (MDia) and muscle fiber density (MDen) at D21( D ) and D28 ( E ). F-G The mRNA expression of MYH1A and MYH7B in the pectoral muscle at D21 ( F ) and D28 ( G ) (n = 6). Data were shown as mean ± SD; * P < 0.05, ⁎⁎ P < 0.01, ⁎⁎⁎ P < 0.001.

Article Snippet: Following blocking with 1% BSA, the sections were incubated with the primary antibody MYH1A (1:100, F59, DSHB, USA) and the AF647-labeled goat anti-mouse secondary antibody (1:500, A0473, Beyotime), with the primary antibody MYH7B (1:100, S58, DSHB) and the FITC-labeled goat anti-mouse secondary antibody (1:500, A0568, Beyotime).

Techniques: Transplantation Assay, Staining, Expressing

Journal: Poultry Science

Article Title: Gut microbiota-derived taurolithocholic acid modulates myofiber-type switching via p38 MAPK/PGC-1α signaling underlying breed differences between Arbor Acres and Taoyuan chickens

doi: 10.1016/j.psj.2026.106914

Figure Lengend Snippet: TLCA regulates mitochondrial biogenesis and altered myofiber type composition through the p38 MAPK/PGC-1α signaling pathway. A Cell viability of cells treated with different concentrations of TLCA for 24 h (n = 10). B & F The mRNA expression of MYH1A and MYH7B (n = 6). C & G Intracellular enzymatic activities of succinate dehydrogenase (SDH) and lactate dehydrogenase (LDH), ATP content and mitochondrial DNA (mtDNA) content (n = 6). D & H The mRNA expression of HK1, GPI, PGAM1, PGK1, PYGL, PGC-1α, NRF1 and TFAM (n = 6). E The protein expression of PGC-1α, p38 MAPK and phosphorylation p38 MAPK (n = 3). I The protein expression of PGC-1α (n = 3). Data were shown as mean ± SD; *Represents significant difference when compared with 0 μM TLCA or CON group, and # represents significant difference when compared with TLCA group. *& # P < 0.05, ⁎⁎ & ## P < 0.01, ⁎⁎⁎ & ### P < 0.001.

Article Snippet: Following blocking with 1% BSA, the sections were incubated with the primary antibody MYH1A (1:100, F59, DSHB, USA) and the AF647-labeled goat anti-mouse secondary antibody (1:500, A0473, Beyotime), with the primary antibody MYH7B (1:100, S58, DSHB) and the FITC-labeled goat anti-mouse secondary antibody (1:500, A0568, Beyotime).

Techniques: Expressing, Phospho-proteomics

Journal: Nature Communications

Article Title: In vivo single-cell RNA metabolic labeling resolves early transcriptional responders in the regenerating zebrafish heart

doi: 10.1038/s41467-026-72781-2

Figure Lengend Snippet: a Representative immunostaining images and quantification of cardiomyocyte de-differentiation in 3 and 7 dpci TgKI(mpeg1:CreERT2);Tg(hsp:LSL-DN-MyD88) zebrafish treated with vehicle or TAM. White dashed lines outline the 100 µm border zone region. Magnified views of red-boxed regions are shown in the middle panel. Red arrows point to the de-differentiating cardiomyocytes (Mef2 + N2.261 + ) within the border zone which were quantified; n = 7 at 3 dpci (for both vehicle control and TAM treated); n = 13 vehicle treated hearts and n = 12 TAM treated hearts at 7 dpci. Scale bars: 100 µm and 10 µm (magnified images). b Representative immunostaining images and quantification of cardiomyocyte proliferation in 3 and 7dpci TgKI(mpeg1:CreERT2);Tg(hsp:LSL-DN-MyD88) zebrafish treated with vehicle or TAM. White dashed lines outline the 100 µm border zone region. Magnified views of red-boxed regions are shown in the middle panel. Red arrows point to proliferating cardiomyocytes (Mef2 + PCNA + ) within the border zone, which were quantified; n = 6 vehicle treated hearts and n = 8 TAM treated hearts at 3 dpci; n = 13 vehicle treated hearts and n = 12 TAM treated hearts at 7 dpci. Scale bars: 100 µm and 10 µm (magnified images). c Representative AFOG staining images and quantification of scar deposition in 14 dpci TgKI(mpeg1:CreERT2);Tg(hsp:LSL-DN-MyD88) zebrafish treated with vehicle or TAM. Black dashed lines outline the scar area. Quantification of proportions of fibrin (red) and collagen (blue) deposition in the scar area; n = 10 vehicle treated hearts and n = 8 TAM treated hearts. Scale bars: 200 µm. For all bar graphs in this figure, dots represent individual ventricles, bars represent mean ± s.d.; statistical test: two-sided Student’s t-test.

Article Snippet: Primary antibodies used were as followed: anti-Fli1 (clone EPR4646) at 1:200 dilution (rabbit, cat. no. ab133485, Abcam); anti-PCNA (clone PC10) at 1:200 dilution (mouse, cat. no. sc-56, Santa Cruz Biotechnology); anti-MEF2 at 1:150 dilution (rabbit, cat. no. DZ01398, Boster Bio); N2.261 at 1:20 dilution (mouse, developed by H. M. Blau and obtained from the Developmental Studies Hybridoma Bank), anti-IL1 beta at 1:200 dilution (mouse, cat. no. GTX634188, Genetex); anti-Mfap4 at 1:200 dilution (rabbit, cat. no. GTX132692, Genetex); anti-GFP at 1:200 dilution (chicken, Aves Labs, GFP-1010); anti-DsRed at 1:200 dilution (recognizing mCherry, Living Colors, rabbit, Takara Bio, 632496).

Techniques: Immunostaining, Control, Staining