Journal: Drug Design, Development and Therapy

Article Title: Targeting the D1-N-methyl- d -aspartate receptor complex reduces l -dopa-induced dyskinesia in 6-hydroxydopamine-lesioned Parkinson’s rats

doi: 10.2147/DDDT.S93487

Figure Lengend Snippet: Effects of intrastriatal administration of Tat-fusion interfering peptide (Tat-D1Ri) on D1R–GluN1 interactions. Notes: Tat-D1Ri, Tat-D1Rc, or saline were locally injected into the striatum of the normal adult rat at a rate of 0.2 µL/min. Rat striatal tissues were then used for coimmunoprecipitation experiments to validate the efficacy and selectivity of interfering peptide. The intrastriatal injection of Tat-D1Ri rather than Tat-D1Rc caused reduction of D1R–GluN1 interactions, which demonstrated the effectiveness of Tat-D1Ri. Abbreviations: Tat-D1Rc, Tat-fusion control peptide; Ig, Immunoglobulin; IP, immunoprecipitation; IB, immunoblot.

Article Snippet: Membranes were blocked in 5% nonfat milk for 1 hour at room temperature and incubated with a rabbit primary antibody against D1R (Millipore) or a mouse primary antibody against GluN1 (Millipore) overnight at 4°C.

Techniques: Injection, Immunoprecipitation, Western Blot

Journal: Drug Design, Development and Therapy

Article Title: Targeting the D1-N-methyl- d -aspartate receptor complex reduces l -dopa-induced dyskinesia in 6-hydroxydopamine-lesioned Parkinson’s rats

doi: 10.2147/DDDT.S93487

Figure Lengend Snippet: Effects of intrastriatal administration of Tat-D1Ri on membrane D1R subunit expression. Notes: Protein levels were evaluated by Western blotting of proteins extracted from the lesioned striatum of the rat brains. They were assessed in extracts from 6-OHDA-lesioned rats treated with pulsatile l -dopa plus intrastriatal administration of Tat-D1Rc or Tat-D1Ri. ( A ) Representative Western blot analysis of D1R in the membrane fraction; ( B ) densitometric analysis of two blots with specific protein signals normalized to the corresponding GAPDH levels. Data are expressed as means ± SEM. Statistical analysis was conducted by independent-samples t -test. * P =0.05 versus LID + Tat-D1Rc. Abbreviations: 6-OHDA, 6-hydroxydopamine; l -dopa, L-3,4-dihydroxyphenylalanine; LID, l -dopa-induced dyskinesia; SEM, standard error of mean; Tat-D1Ri, Tat-fusion interfering peptide; Tat-D1Rc, Tat-fusion control peptide; GAPDH, glyceraldehyde 3-phosphate dehydrogenase.

Article Snippet: Membranes were blocked in 5% nonfat milk for 1 hour at room temperature and incubated with a rabbit primary antibody against D1R (Millipore) or a mouse primary antibody against GluN1 (Millipore) overnight at 4°C.

Techniques: Expressing, Western Blot