000 02365nab a2200337 a 4500
003 AR-ReUNN
005 20260702004755.0
008 260701s2023 ag |||||||||||||||||eng
041 0 _aeng
100 1 _aSaito, Keisuke
_9199367
700 1 _aGoto, Shigemi
_9199368
700 1 _aHiraba, Katsunari
_9199369
700 1 _aFujiwara, Takuya
_9199370
700 1 _aMorita, Takumi
_9199371
700 1 _aTakasu, Hiroki
_9199372
700 1 _aKuroki, Kozue
_9199373
245 1 0 _aHistochemical study of rabbit medial pterygoid muscle during postnatal development
264 1 _c2023
030 _aFOUNNE
300 _a9 páginas
520 _aThe medial pterygoid muscle is a layered structure like the masseter muscle. This study aimed at investigating the regional differences in fiber type composition and fiber diameter of the medial pterygoid muscle in the rabbit from birth until 33 weeks of age. Histochemical analysis of the medial pterygoid muscle was performed during five developmental stages (4, 9, 12, 18, and 33 weeks after birth) in 30 male Japanese white rabbits. Six fiber types (I, IC, IIC, IIA, IIAB, and IIB) were identified by mATPase staining. An increase in diameter was observed in fiber types I and IC until 9 weeks of age, and in fiber types IIC, IIA, IIAB, and IIB until 33 weeks of age. No significant differences in fiber diameter were noted in the different regions of the pterygoid muscle. Moderate fast to slow fiber type shifts occurred from weeks 4–12; thereafter, a rapid slow to fast fiber type shift was observed. Significant differences in fiber type composition based on regional differences were noted at 4 weeks of age. However, there was no difference in fiber type composition between regions at 33 weeks. In conclusion, it was clear that the diameter and proportion of fast fibers had increased even after reaching sexual maturity in rabbits. In addition, the medial pterygoid muscle tissues appeared to be homogenous at 33 weeks of age with very few differences between regions.
650 4 _aMusculo Pterigoideo Medial
_9199374
650 4 _aDesarrollo Postnatal
_9199375
650 4 _aMusculo Tipo Fibra
_9199376
650 4 _aHistoquimica
_9117588
650 4 _aConejos
_9117188
773 0 _tOdontology
_x1618-1247
_gv. 105 n. 2 (2017)
_w257190
942 _cART
035 _a(ODN)65670
001 266514
999 _c266514
_d266514
040 _aAR-ReUNN
_bspa
_cAR-ReUNN
_eaacr2