Sprouting of fusimotor neurones after partial denervation of the cat soleus muscle

1992 ◽  
Vol 90 (2) ◽  
Author(s):  
L. Einsiedel ◽  
A.R. Luff ◽  
U. Proske
Keyword(s):  
Soleus Muscle ◽  
Partial Denervation ◽  
Fusimotor Neurones

Org.2766 stimulates collateral sprouting in the soleus muscle of the rat following partial denervation

1989 ◽  
Vol 12 (5) ◽  
pp. 353-359 ◽  
Author(s):  
Paul de Koning ◽  
Joost Verhaagen ◽  
Willem Sloot ◽  
Frans G. I. Jennekens ◽  
Willem H. Gispen
Keyword(s):  
Soleus Muscle ◽  
Collateral Sprouting ◽  
Partial Denervation ◽  
Org 2766

Partial denervation of the rat soleus muscle at two different developmental stages

Neuroscience ◽  
1989 ◽  
Vol 28 (3) ◽  
pp. 755-763 ◽  
Author(s):  
T.J. fisher ◽  
G. Vrbová ◽  
A. Wijetunge
Keyword(s):  
Soleus Muscle ◽  
Developmental Stages ◽  
Partial Denervation ◽  
Rat Soleus Muscle

Motor activity patterns in rat soleus muscle after neonatal partial denervation

1995 ◽  
Vol 5 (3) ◽  
pp. 179-186 ◽  
Author(s):  
U. Slawińska ◽  
R. Navarrete ◽  
S. Kasicki ◽  
G. Vrbova
Keyword(s):  
Motor Activity ◽  
Soleus Muscle ◽  
Activity Patterns ◽  
Partial Denervation ◽  
Rat Soleus Muscle

Enlarged motor units resulting from partial denervation of cat hindlimb muscles

1988 ◽  
Vol 59 (5) ◽  
pp. 1377-1394 ◽  
Author(s):  
A. R. Luff ◽  
D. D. Hatcher ◽  
K. Torkko
Keyword(s):  
Motor Unit ◽  
Soleus Muscle ◽  
Motor Units ◽  
Motor Axons ◽  
Unit Force ◽  
Single Motor Units ◽  
Partial Denervation ◽  
Slow Twitch ◽  
Fast Twitch ◽  
Polyneuronal Innervation

1. It was the aim of this study to determine the extent to which a mammalian motoneuron can sprout in a partially denervated muscle, which motor unit types are involved in sprouting, and whether polyneuronal innervation exists between sprouted units. 2. The fast-twitch flexor digitorum longus (FDL) and slow-twitch soleus were partially denervated by unilateral section of the L7 ventral root in 12-wk-old kittens. After approximately 100 days single motor units were isolated, and their isometric contractile characteristics were determined. FDL units were also tested for their resistance to fatigue and categorized as fast-twitch, fatiguing fibers (FF), fast-twitch, fatigue-resistant fibers (FR), and slow-twitch, fatigue-resistant fibers (S). The presence of polyneuronal innervation was investigated between pairs of like and unlike units. 3. The extent of the original denervation was variable and was estimated from the distribution of motor axons innervating the muscle via the L7 and S1 (soleus) or L6 and L7 (FDL) ventral roots on the contralateral side. In soleus, denervations ranged from 75 to 98%; in FDL, 60 to 97% (denervations less than 60% were not investigated). In general, motor-unit force increased in proportion to the extent of the denervation. 4. Within soleus, unit force increased to over 2 N, which was about 16 times greater than the average for a normal muscle (133 mN). However, most units increased in force to between five and 12 times normal. 5. Within FDL, the force development of type S units was unaffected by partial denervation. Type FF units increased by up to 11 times (4.3 N) compared with normal FF units (395 mN) with most increasing between two and four times. FR units exhibited the greatest relative increase in force [up to 19 times (4.3 N) compared with normal (225 mN)]. Most units were two to seven times the normal. 6. A few FDL units were glycogen depleted, the muscles frozen, and cross sections prepared for histochemical analysis. This indicated that the largest units contained approximately 5,000 fibers, and there was little fiber hypertrophy. In the extensively denervated soleus muscle, large numbers of small, presumably denervated fibers were observed. The innervation ratio of several large units was determined indirectly using mean fiber area. This gave estimates of 3,000-4,000 fibers for the largest units. Again, fiber hypertrophy contributed little to the increase in unit force. It was concluded that the increased force of units in both muscles was largely attributable to terminal and axonal sprouting of the intact motor axons. 7. No evidence for polyneuronal innervation was found in either FDL or soleus muscle.(ABSTRACT TRUNCATED AT 400 WORDS)

The Accessory Soleus Muscle: A Narrative Review of the Literature

2019 ◽  
Vol 29 (3) ◽  
pp. 239-246
Author(s):  
Aggeliki Bistaraki ◽  
Maria Zarokosta ◽  
Theodoros Mariolis Sapsakos ◽  
George Skarpas ◽  
Georgios Nousios ◽  
...  
Keyword(s):  
Soleus Muscle ◽  
Narrative Review ◽  
Review Of The Literature

In vitro autoregulation of glucose utilization in rat soleus muscle

Diabetes ◽  
1987 ◽  
Vol 36 (9) ◽  
pp. 1041-1046 ◽  
Author(s):  
S. Sasson ◽  
D. Edelson ◽  
E. Cerasi
Keyword(s):  
Soleus Muscle ◽  
Glucose Utilization ◽  
Rat Soleus Muscle
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