No classical type IIB fibres in dog skeletal muscle

Snow, David; Billeter, R.; Mascarello, Francesco; Carpenè, Emilio; Rowlerson, A; Jenny, E.

doi:10.1007/bf00492533

Cited by 124 publications

(80 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, based on the variable staining intensity of the histochemically stained cells shown in the figures, we believe that without the accompanying IHC fiber typing, the differentiation of type II fibers may have been difficult (Kanatous et al, 2002). Thus, to maximize the accuracy of histochemical staining techniques in novel or controversial fiber typing applications, multiple staining protocols are recommended (Braund et al, 1978;Snow et al, 1982;Amann et al, 1993;LaTorr et al, 1993;Kanatous et al, 2002). There is strong evidence that myosin heavy chain (MyHC) composition directly corresponds to the shortening velocity of muscle fibers, subsequent ATPase activity, and thus, ATPase staining intensity (Reiser et al, 1985;Betto et al, 1986;Staron and Pette, 1986;Termin et al, 1989;Gorza, 1990).…”

Section: Discussionmentioning

confidence: 99%

Immunohistochemical fiber typing of harbor seal skeletal muscle

Watson

Miller

Davis

2003

Journal of Experimental Biology

View full text Add to dashboard Cite

SUMMARY There is strong evidence that pinnipeds maintain a lipid-based, aerobic metabolism during diving. However, the few fiber-typing studies performed on pinniped skeletal muscles are not consistent with an aerobic physiological profile. The objective of this study was to reexamine the fiber type distribution throughout the primary locomotory muscles of the harbor seal Phoca vitulina. Results from immunohistochemical (IHC) fiber typing indicated that harbor seal swimming muscles (the epaxial muscles) are composed of 47.4% type I (slow twitch, oxidative) fibers and 52.8% IIa (fast twitch,oxidative) fibers, which are homogeneously distributed throughout the muscle. Harbor seal pectoralis, a secondary swimming muscle, was composed of 16.2%type I and 84.3% type IIa fibers. No fast twitch, glycolytic (type IIb) fibers were detected in either muscle, in contrast to published data on fiber typing of harbor seal epaxial muscles using traditional histochemical techniques. The extreme specificity inherent in the IHC fiber typing procedure leads us to conclude that harbor seal swimming muscle is entirely composed of oxidative fibers. Our results are consistent with the enzymatic analyses of pinniped skeletal muscle that support the use of lipid-derived aerobic catabolism to fuel working muscle during diving in these marine mammals.

show abstract

Section: Discussionmentioning

confidence: 99%

Immunohistochemical fiber typing of harbor seal skeletal muscle

Watson

Miller

Davis

2003

Journal of Experimental Biology

View full text Add to dashboard Cite

show abstract

“…The skeletal muscle fibers have been classified into three types in most mammals except the house shrew (Suzuki, 1990), slow loris (Sickles and Pinkstaff, 1981a, b) and dog (Snow et al, 1982) which respectively lack Type I, FG and Type II B fibers. In the present study, the three types of muscle fibers (Type I, II A and II B) could be distinguished in the abdominal muscles of Japanese macaques, as have Table 2.…”

Section: Discussionmentioning

confidence: 99%

Fiber Type Composition of Abdominal Muscles in Japanese Macaques(Macaca fuscata)

Ito

1998

Okajimas Folia Anatomica Japonica

View full text Add to dashboard Cite

Summary: The muscle fiber composition and cross-sectional area of muscle fiber types were investigated histochemically in the abdominal muscles (rectus abdominis muscle, obliquus externus abdominis muscle, obliquus internus abdominis muscle and transversus abdominis muscle) of three Japanese macaques (Macaca fuscata). Muscle fibers were classified into three fiber types (Type I, II A and II B) by myosin ATPase activity and succinate dehydrogenase activity. Each abdominal musde in Japanese macaques contained high proportion of Type II B fibers and there were no large differences in the fiber type composition between the abdominal muscles. The range of mean fiber type percent was 26-32% Type I, 21-22% Type II A, and 46-52% Type II B fibers. Thus, based on the histochemical fiber type composition, the separate abdominal musdes appear to have a similar functional capacity. The cross-sectional area was larger for Type II than for Type I fibers, and the areas were similar in Type II A and Type II B fibers in each muscle. The rectus abdominis showed larger fibers of each type compared to the lateral abdominal muscles. The high proportion of Type II B fibers and large fiber size for Type II B fibers suggest that the abdominal muscles of Japanese macaques have properties similar to the propulsive and locomotory muscles in the limbs.

show abstract

“…The original protocol for histochemical determination of fiber type after preincubation in buffers of different pH for human muscle was developed by Brooke and Kaiser. 22 We modified the protocol as previously described by Snow et al 23 as method A, except that the incubation time in ATP was doubled to obtain maximal reactivity. This was necessary because the skeletal muscle of large mammals tends to have less overall ATPase activity than that of smaller mammals.…”

Section: Methodsmentioning

confidence: 99%

Anatomy and Fiber Type Composition of Human Interarytenoid Muscle

Tellis¹,

Rosen²,

Thekdi³

et al. 2004

Ann Otol Rhinol Laryngol

View full text Add to dashboard Cite

Intrinsic laryngeal muscle investigations, especially those of the interarytenoid (IA) muscle, have been primarily teleologically based. We determined IA muscle anatomy and histochemical and immunohistochemical classification of extrafusal and intrafusal (muscle spindle) fibers in 5 patients. Extrafusal fibers were oxidative type I and glycolytic types IIA and IIX. Intrafusal fibers of muscle spindles were identified by the presence of tonic and neonatal myosin. The results demonstrate that the IA muscle has a phenotype similar to that of limb skeletal muscle. Myosin coexpression, the absence of intrafusal fibers, and fiber type grouping were unusual features found previously in the thyroarytenoid and posterior cricoarytenoid muscles, but they were not present in the IA muscle. These findings lead to the conclusion that the IA muscle has functional significance beyond its assumed importance in maintaining vocal fold position during phonation. The presence of spindles demonstrates differences in motor control as compared to the thyroarytenoid and posterior cricoarytenoid muscles. Further, extrafusal fiber characteristics implicate IA muscle involvement in muscle tension dysphonia and adductor spasmodic dysphonia. Given the unique physiologic characteristics of the human IA muscle, further research into the role of the IA muscle in voice disorders is warranted.

show abstract

No classical type IIB fibres in dog skeletal muscle

Cited by 124 publications

References 24 publications

Immunohistochemical fiber typing of harbor seal skeletal muscle

Immunohistochemical fiber typing of harbor seal skeletal muscle

Fiber Type Composition of Abdominal Muscles in Japanese Macaques(Macaca fuscata)

Anatomy and Fiber Type Composition of Human Interarytenoid Muscle

Contact Info

Product

Resources

About