scholarly journals Method using a co-culture system with high-purity intramuscular preadipocytes and satellite cells from chicken pectoralis major muscle

2018 ◽  
Vol 97 (10) ◽  
pp. 3691-3697 ◽  
Author(s):  
H.X. Cui ◽  
L.P. Guo ◽  
G.P. Zhao ◽  
R.R. Liu ◽  
Q.H. Li ◽  
...  
Keyword(s):  
Satellite Cells ◽  
High Purity ◽  
Culture System ◽  
Pectoralis Major Muscle ◽  
Pectoralis Major

194 Avian Breast Muscle Development and Growth: Influence of Temperature on Growth Mediated by Breast Muscle Adult Myoblasts (Satellite Cells)

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 104-104
Author(s):  
Sandra G Velleman
Keyword(s):  
Stem Cell ◽  
Thermal Stress ◽  
Ambient Temperature ◽  
Satellite Cell ◽  
Satellite Cells ◽  
Pectoralis Major Muscle ◽  
Muscle Growth ◽  
Pectoralis Major ◽  
Breast Muscle ◽  
Stem Cell Population

Abstract Newly hatched poults and chicks have immature thermoregulatory systems and are not able to maintain a constant body temperature when exposed to hot or cold ambient temperatures. During the immediate posthatch period during handling and transport, poults and chicks are commonly exposed to acute thermal conditions. This immediate posthatch period is when satellite cells, adult myoblasts, have their highest period of mitotic activity and are sensitive to extrinsic stimuli including ambient temperature. Variable temperatures can have long-lasting positive or negative effects on skeletal muscle growth. Satellite cells are a self-renewing multipotential stem cell population located between the basement membrane and sarcolemma of muscle fibers. They are responsible for all posthatch growth of muscle through muscle fiber hypertrophy. Results have shown that satellite cells are more sensitive to thermal stress during the period of satellite cell proliferation than during differentiation into multinucleated myotubes, and that pectoralis major muscle satellite cells from growth-selected lines of chickens and turkeys are more sensitive to temperature. Recent findings have shown that the rapamycin, mTOR, signaling pathway which is involved in muscle growth through hypertrophy is differentially affected by thermal stress in a growth-dependent manner. Since satellite cells are a stem cell population, they can also transdifferentiate into other cellular lineages. Anaerobic muscles like the pectoralis major muscle are more prone to converting to an adipogenic lineage compared to aerobic muscles like the biceps femoris. Thus, variable temperatures can impact the intramuscular fat content of the breast muscle. Taken together, changes in ambient temperature alter satellite cell function causing long-term effects on growth, morphological organization, and composition of the pectoralis major, breast, muscle.

Possibility of simultaneous transposition of segments of the pectoralis major muscle to restore flexion in the shoulder and elbow joints (clinical observation)

MedAlliance ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 61-68
Keyword(s):  
Anterior Part ◽  
Pectoralis Major Muscle ◽  
Elbow Flexion ◽  
Functional Results ◽  
Proximal Part ◽  
Deltoid Muscle ◽  
Pectoralis Major ◽  
Orthopedic Surgeons ◽  
Active Function ◽  
Head Neck

The pectoralis major is a widely used muscle in reconstruction surgery for replacement soft tissue defects of a head, neck, thorax, upper limbs and restoration of muscle active function. The peculiarities of anatomy of the pectoralis major makes it possible to divide the muscle into several segments with their own innervations and supply and use them independently from each other. This article describes the anatomy of the pectoralis major and the opportunity for clinical applications of different segments of this muscle. The authors demonstrate the result of the restoration of shoulder and elbow flexion in a patient with arthrogryposis due to simultaneous transfer of the proximal part of pectoralis major to the anterior part of the deltoid muscle and the distal part of pectoralis major to the biceps with good functional results. The article will be useful for plastic surgeons, orthopedic surgeons and physiotherapists.

Regional differential stretching of the pectoralis major muscle: An ultrasound elastography study

2021 ◽  
Vol 121 ◽  
pp. 110416
Author(s):  
Jun Umehara ◽  
Yusaku Sato ◽  
Tome Ikezoe ◽  
Masahide Yagi ◽  
Shusuke Nojiri ◽  
...  
Keyword(s):  
Pectoralis Major Muscle ◽  
Pectoralis Major ◽  
Ultrasound Elastography

scholarly journals Unilateral pectoralis major muscle flap for the treatment of sternal wounds due to Ludwig's angina

2017 ◽  
Vol 15 (1) ◽  
pp. 174-177 ◽  
Author(s):  
Antonio Albacete Neto ◽  
Pedro S Coltro ◽  
Grazielle S Horácio ◽  
Ivan R Almeida ◽  
Jayme A Farina Junior
Keyword(s):  
Pectoralis Major Muscle ◽  
Muscle Flap ◽  
Pectoralis Major ◽  
Pectoralis Major Muscle Flap ◽  
Ludwig’S Angina ◽  
Ludwig's Angina

Balloon Expansion of the Pectoralis Major Muscle Flap in Sternoplasty: A Biomechanical and Histologic Study in a Rat Model

2004 ◽  
Vol 113 (3) ◽  
pp. 942-948 ◽  
Author(s):  
Galit Shor ◽  
Dan Regev ◽  
Abraham Amir ◽  
Marissa Halperin ◽  
Shamai Giler ◽  
...  
Keyword(s):  
Rat Model ◽  
Pectoralis Major Muscle ◽  
Muscle Flap ◽  
Pectoralis Major ◽  
Histologic Study ◽  
Pectoralis Major Muscle Flap
Sign in / Sign up

Export Citation Format

Share Document