The role of muscle activity and mental load in the development of pain and degenerative processes at the muscle cell level during computer work

2000 ◽  
Vol 83 (2-3) ◽  
pp. 99-105 ◽  
Author(s):  
Gisela Sjøgaard ◽  
Ulf Lundberg ◽  
Roland Kadefors
Keyword(s):  
Muscle Cell ◽  
Muscle Activity ◽  
Computer Work ◽  
Cell Level ◽  
Mental Load ◽  
Degenerative Processes

Reexamining the Role of Income Shocks and Ethnic Cleavages on Social Conflict in Africa at the Cell Level.

2018 ◽  
Author(s):  
Beatriz Manotas Hidalgo ◽  
Fidel Perez Sebastian ◽  
Miguel Campo-Bescós
Keyword(s):  
Social Conflict ◽  
Income Shocks ◽  
Cell Level ◽  
Conflict In Africa

Role of Muscle Activity in Nerve-Muscle Interaction in vitro

Nature ◽  
1974 ◽  
Vol 248 (5443) ◽  
pp. 70-71 ◽  
Author(s):  
J. H. STEINBACH
Keyword(s):  
Muscle Activity ◽  
Nerve Muscle

scholarly journals Unexpected Role of the Copper Transporter ATP7A in PDGF-Induced Vascular Smooth Muscle Cell Migration

2010 ◽  
Vol 107 (6) ◽  
pp. 787-799 ◽  
Author(s):  
Takashi Ashino ◽  
Varadarajan Sudhahar ◽  
Norifumi Urao ◽  
Jin Oshikawa ◽  
Gin-Fu Chen ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Cell Migration ◽  
Vascular Smooth Muscle ◽  
Smooth Muscle Cell ◽  
Muscle Cell ◽  
Vascular Smooth Muscle Cell ◽  
Copper Transporter ◽  
Smooth Muscle Cell Migration

The essential role of p21 in radiation-induced cell cycle arrest of vascular smooth muscle cell

2004 ◽  
Vol 37 (4) ◽  
pp. 871-880 ◽  
Author(s):  
Hyo-Soo Kim ◽  
Hyun-Jai Cho ◽  
Hyun-Ju Cho ◽  
Sun-Jung Park ◽  
Kyung-Woo Park ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Smooth Muscle ◽  
Vascular Smooth Muscle ◽  
Smooth Muscle Cell ◽  
Cell Cycle Arrest ◽  
Muscle Cell ◽  
Essential Role ◽  
Cycle Arrest ◽  
Radiation Induced

Functional role of miRNA-34A in smooth muscle cell functions and neointima formation

2016 ◽  
Vol 244 ◽  
pp. e3-e4 ◽  
Author(s):  
F. Yang ◽  
Q. Chen ◽  
G. Wen ◽  
C. Zhang ◽  
L.A. Luong ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Smooth Muscle Cell ◽  
Muscle Cell ◽  
Functional Role ◽  
Neointima Formation ◽  
Cell Functions

Abstract 257: Clonal Analysis Of Multipotent Cardiovascular Progenitors That Generate Cardiomyocytes During Development

2014 ◽  
Vol 115 (suppl_1) ◽  
Author(s):  
Konstantina Ioanna Sereti ◽  
Paniz Kamran Rashani ◽  
Peng Zhao ◽  
Reza Ardehali
Keyword(s):  
Single Cell ◽  
Heart Development ◽  
Cardiac Development ◽  
Clonal Analysis ◽  
Cardiac Cells ◽  
Single Cell Level ◽  
Reporter System ◽  
Cell Level ◽  
Cardiac Progenitors

It has been proposed that cardiac development in lower vertebrates is driven by the proliferation of cardiomyocytes. Similarly, cycling myocytes have been suggested to direct cardiac regeneration in neonatal mice after injury. Although, the role of cardiomyocyte proliferation in cardiac tissue generation during development has been well documented, the extent of this contribution as well as the role of other cell types, such as progenitor cells, still remains controversial. Here we used a novel stochastic four-color Cre-dependent reporter system (Rainbow) that allows labeling at a single cell level and retrospective analysis of the progeny. Cardiac progenitors expressing Mesp1 or Nkx2.5 were shown to be a source of cardiomyocytes during embryonic development while the onset of αMHC expression marked the developmental stage where the capacity of cardiac cells to proliferate diminishes significantly. Through direct clonal analysis we provide strong evidence supporting that cardiac progenitors, as opposed to mature cardiomyocytes, are the main source of cardiomyocytes during cardiac development. Moreover, we have identified quadri-, tri-, bi, and uni-potent progenitors that at a single cell level can generate cardiomyocytes, fibroblasts, endothelial and smooth muscle cells. Although existing cardiomyocytes undergo limited proliferation, our data indicates that it is mainly the progenitors that contribute to heart development. Furthermore, we show that the limited proliferation capacity of cardiomyocytes observed during normal development was enhanced following neonatal cardiac injury allowing almost complete regeneration of the scared tissue. However, this ability was largely absent in adult injured hearts. Detailed characterization of dividing cardiomyocytes and proliferating progenitors would greatly benefit the development of novel therapeutic options for cardiovascular diseases.

Ventilatory Muscle Activity in Intact Preparations of Aeshnid Dragonfly Larvae

1972 ◽  
Vol 56 (2) ◽  
pp. 527-536
Author(s):  
R. S. PICKARD ◽  
P. J. MILL
Keyword(s):  
Muscle Activity ◽  
Mechanical Effect ◽  
Critical Position ◽  
Normal Ventilation

1. The expiratory role of the segmental, respiratory dorso-ventral muscles, and the inspiratory role of the subintestinal muscle, have been confirmed using intact preparations of aeshnid dragonfly larvae. 2. The strain developed by individual respiratory dorso-ventral muscles has been measured. 3. The respiratory dorso-ventral muscles all cease firing simultaneously, about 100 msec before the sterna are fully raised, and do not have any mechanical effect on the sterna after this time. It is suggested that the delay is caused either because the role of these muscles is to lift the sterna past some critical position, and/or because of the inertia of the expiratory current. 4. Periodically the sterna are raised and then lowered slowly in a series of steps, each pause in the lowering coinciding with activity in the respiratory dorso-ventral muscles. This form of ventilation is compared with others previously described. 5. In normal ventilation, and in other types of ventilation, activity in the respiratory dorso-ventral muscles shows a pronounced tendency to begin in the most posterior segments and to continue for longer periods in those segments. 6. Some aspects of the central neural connexions involved in normal ventilation are discussed.

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