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Fig. 4

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ZDB-IMAGE-221121-42
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Figures for Lin et al., 2021
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Fig. 4

Figure 4. Sirt1 inhibition impairs adult fin regeneration via reduction of the UPRmt

(A) Representative images (left) and quantification (right) show that inhibiting Sirt1 by adding NAM to fish water impairs fin regeneration in adult zebrafish.

(B) Representative in situ hybridization images show that NAM treatment reduces hspd1 expression levels in the blastema of an injured adult fin.

(C) The representative images (left) and quantification (right) show that incubation of injured hspd1 mutant fish at a semi-permissive temperature in conjunction with a low concentration of NAM results in significant inhibition of fin regeneration.

(D) Quantification of regeneration growth shows that sirt1 mutant larval fish exhibit a fin regeneration defect when treated with doxycycline. Each dot represents a fin regeneration measurement from one fish. Error bars indicate standard deviation. Student’s t test was performed to determine statistical significance. ∗p < 0.05.).

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