Journal: BMC Musculoskeletal Disorders
Article Title: Accumulation of lipids after acute direct and indirect traumatic injuries in male and female mice
doi: 10.1186/s12891-025-09207-5
Figure Lengend Snippet: Fiber type-specific analysis of remaining muscle following injury. A Four regions of interests are noted on representative H&E-stained images of mid region of gastrocnemius muscle (see Fig. , images are replicated); scale bar is equal to 1,000 μm. B Representative images of the defect (or analogous location) stained for perilipin 5 (red), MyHC slow (type I myofibers; green), MyHC 2A (type IIa myofibers; orange), and laminin (blue); scale bar is equal to 125 μm. C Percentage of perilipin 5 in defect and border regions of interest (main effect of injury p ≤ 0.046). D In a fiber-type specific approach, the area of perilipin 5 was greatest in type IIb/IIx myofibers (main effect of injury p = 0.005). The fiber type specific E cross-sectional area ( p ≥ 0.064) and F distribution ( p ≥ 0.141). Open circle female, closed male; dots represent an individual animal. Data for percent area of perilipin 5, cross-sectional area, and fiber type distribution were analyzed by two-way ANOVA; statistically significant Main Effects are noted; all p-values are shown within each graph and in Supplemental Table 1
Article Snippet: Within the middle muscle section only, muscles were stained for myosin heavy chain (MyHC) isoform expression MyHC slow (DSHD Cat# BA-D5, RRID: AB_2235587; 5 μg/ml) and MyHC 2A (DSHB Cat# SC-71; RRID: AB_2147165; 5 μg/ml) in conjunction with perilipin 5 (Proteintech Cat#26951-1-AP; RRID: AB_2880699; 5 μg/ml) to analyze changes in fiber type, perilipin 5 expression and co-localization.
Techniques: Staining