Klueber K, Yip J W, Ontell M
Brain Res. 1984 Jul 2;305(1):192-5. doi: 10.1016/0006-8993(84)91139-9.
Following intramuscular placement of horseradish peroxidase (HRP) into the 129ReJ mouse extensor digitorum longus muscle, 15 +/- 1 (S.E.M.) labeled motoneurons were found in the antero-lateral motor column, between the exits of spinal roots L3 and L4. When HRP was placed in 100-day orthotopic whole muscle transplants of the extensor digitorum longus muscle, the location of the motoneurons supplying the graft was similar to that of control muscle; however, the number of motoneurons innervating the grafts was variable and usually reduced (7 +/- 1 S.E.M.).
将辣根过氧化物酶（HRP）肌内注射到129ReJ小鼠的趾长伸肌后，在L3和L4脊神经根出口之间的前外侧运动柱中发现了15±1（标准误）个标记的运动神经元。当将HRP注射到趾长伸肌的100天原位全肌移植中时，支配移植物的运动神经元的位置与对照肌肉相似；然而，支配移植物的运动神经元数量可变，且通常减少（7±1标准误）。
