The amount of contractile vacuoles can tailor in accordance with suctorian species, age and size. |
|
The onset of contractile activity involves activating troponin, the second accessory protein of thin filaments. |
|
Notice the collapsing contractile vacuole in the lower middle of the frame. |
|
Maximum contractile and relaxant responses to the relevant antagonists were expressed as a percentage of the control maximum response. |
|
A similar pattern of contractile and relaxant responses was seen in the pulmonary veins. |
|
Therefore, we used Western analysis to determine the relative contents of these contractile proteins in whole lung homogenates. |
|
The purpose of the contractile vacuole is to expel excess water from the cell, preventing the cell from swelling up. |
|
All of the contractile and relaxant responses evoked by these stimuli were absent in vagotomized animals. |
|
The cytoplasm contains, in addition to digestive vacuoles, contractile vacuoles which probably function in the control of osmotic pressures. |
|
In cross section, skeletal muscle fibers are seen to be composed of numerous small aggregates of contractile substance, the myofibrils. |
|
Smooth muscle fibers usually contract slowly but are capable of sustained contractile activity. |
|
Briefly, the cardiac myofibrils are composed of the major contractile proteins, actin and myosin. |
|
The contractile activity in the distal esophagus was normal with propagating contractions of appropriate amplitude and duration. |
|
At this point, the efficiency of contraction decreases and contractile failure ensues. |
|
The contractile activity of involuntary muscle is normally regulated by the autonomic nervous system. |
|
Locomotor skeletal muscle protein synthesis is sensitive to contractile activity and rapidly decreases within the first hours of reduced use. |
|
Arrhythmia develops in association with damaged cardiac contractile elements and diminished coronary flow. |
|
Good correlation exists between findings in vitro and the observed contractile properties in vivo. |
|
Smooth muscle cells possess a contractile apparatus consisting of actin and myosin filaments and the cytoskeleton. |
|
It is increased in failing human hearts and contributes to the loss of the heart's contractile strength during the development of heart failure. |
|
|
Here we present a more detailed analysis of contractile force generation in a cell that lacks cytoskeletal protein motors. |
|
It is contractile and when you encounter it in wounds it tears easily and doesn't grab well with forceps. |
|
Each cell contains smaller fibres known as myofibrils that house highly organized contractile units called sarcomeres. |
|
A green fluorescent protein fusion of drainin localizes specifically to the contractile vacuole and rescues its periodic discharge in drainin-null cells. |
|
To aid in modeling cell-driven contraction, a contractile unit was generally defined as a set of applied loads which sum to zero and produce zero net torque. |
|
They relied on contractile force to move medium-heavy poundage. |
|
The direct effect on the contractile elements is neither antagonized by adrenergic blocking agents nor prevented by vascular denervation. |
|
Depending on the species, a paramecium has from one to several contractile vacuoles located close to the surface near the ends of the cell. |
|
An end-on view of a C. elegans embryo in cytokinesis shows the contractile ring closing asymmetrically within the division plane. |
|
Many bulbous plants have contractile adventitious roots that pull the bulb deeper into the ground as it grows. |
|
Of the myofilament proteins, myosin and actin are known to play a direct part in the contractile event. |
|
In green algae, the vibrations break the contractile vacuole connection to the inner protective membrane called the plasmalemma. |
|
Inside the fibre are the myofibrils, which constitute the contractile apparatus, and a system for controlling the myofibrils through changes in calcium concentration. |
|
Composed of the contractile proteins actin and myosin, the myofibrils represent the smallest units of contraction in living muscle. |
|
The endoplasm contains food vacuoles, a granular nucleus, and a clear contractile vacuole. |
|
This behavior is consistent with the idea that a small amount of rigorlike, stereospecific actomyosin complexes are formed as a result of normal contractile activity. |
|
The contractile processes of these tissues are dependent upon the movement of extracellular calcium into the cells through specific ion channels. |
|
On one hand, angiosperm cells lack centrosomes as microtubule organizing centres and are missing the contractile ring which serves as a tool for cytokinesis in animal cells. |
|
In addition, this plant helps to maintain the contractile function of the bladder in cases of partial obstruction. |
|
In this case, the contractile capacity of the ventricles is preserved, but ventricular filling is disturbed. |
|
|
Actin and other contractile proteins within the pseudopods of platelets produce platelet retraction that prevents further blood loss and facilitates healing. |
|
In our studies, fibroblast contractile machinery was observed to function entirely within pseudopods, while GFP-alpha-actinin concentrated in pseudopod tips and cortex. |
|
However, as with bronchial smooth muscle hypertrophy, it can be expected that the remodeled vessels may exhibit altered reactivity to contractile or relaxant agents. |
|
The cardiac sarcomere is the contractile unit in each cardiac cell. |
|
A muscle fiber is composed of contractile units called myofibrils. |
|
Thus, by taking different views of the contractile ring and quantifying speed, geometry, and protein localization, we uncovered a novel facet of the redundant mechanisms that ensure successful cytokinesis. |
|
The endomysium appears to provide an efficient mechanism for transmission of contractile forces from adjacent muscle fibres within fascicles. |
|
The typical octopus has a saccular body: the head is only slightly demarcated from the body and has large, complex eyes and eight contractile arms. |
|
Pyruvate carboxylation prevents the decline in contractile function of rat hearts oxidizing acetoacetate. |
|
It was here I began my first physiology experiments with rat atria, where I measured the strength of atria contraction and the degree of phosphorylation of contractile proteins. |
|
Over the same period, women lose hardly any contractile cells. |
|
While the contractile machinery occupies about 70 percent of the cardiac cell volume, mitochondria occupy about 25 percent and provide the necessary energy for contraction. |
|
Possible explanations for this relate to the arrangement of the contractile apparatus within the cell, which gives rise to more cross bridges effectively operating in conjunction with one another. |
|
This programme included contractile fiscal and monetary measures which resulted in a reduction of the public service and generally high rates of unemployment. |
|
We are now devising image analysis software to track cell shape and protein localization, and aim to create a predictive mathematical model for contractile ring function. |
|
The Power programme is the perfect solution for working on these muscles to improve their contractile qualities, thus contributing to the development of their contraction strength. |
|
A brief review of muscle physiology reminds us of the contractile elements of muscle called sarcomeres. |
|
Apart from the myocardial contractile function and the post-load the cardiac output is highly dependent on venous return, which in turn depends on venous resistance, mean systemic pressure and blood volume. |
|
Effects of potassium channel modulators on myogenic spontaneous phasic contractile activity in human detrusor from neurogenic patients. |
|
In patients affected by Duchenne muscular dystrophy, this truncated protein conserves its physiologic activity of maintenance of the integrity and contractile activities of the muscle fibers. |
|
|
Our current research efforts are centered on understanding how the midbody ring derives from the contractile ring, as we know very little about this process and it is vital to the success of cytokinesis. |
|
Results indicated that trimebutine maleate had an intense contractile activity on the intestine of the 29 patients treated with the drug compared to 13 patients who did not receive it. |
|
We study the molecular mechanisms of cell shape change in cytokinesis: the assembly, organization and function of the actomyosin contractile ring. |
|
They are ectodermally derived contractile cells that help with the excretion of secretions. |
|
Muscles are bundles of contractile fibers that are attached to bones by tendons. |
|
The bulb lies dormant after the leaves and flower stem die back and has contractile roots that pull it down further into the soil. |
|
Some protists accomplish this using contractile vacuoles, while freshwater fish excrete excess water via the kidney. |
|
For example, preliminary studies correlating contractile ring dynamics with cell shape change indicate that actomyosin organization, not just quantity, affects the kinetics of cell shape transitions. |
|
This form of the disease is often hereditary and has been associated with mutations in several different genes, each of which encodes a protein necessary for the formation of sarcomeres, the contractile units of muscle. |
|
Smooth muscle differs from striated muscle in its lack of any apparent organization of the actin and myosin contractile filaments into the discrete contractile units called sarcomeres. |
|
It has been hypothesized that, in order for a single cell to shorten in such a unique fashion, the contractile proteins in smooth muscle are helically oriented within the muscle cell. |
|
Frontera WR, Grimby L, Larsson L Firing rate of the lower motoneuron and contractile properties of its muscle fibers after upper motoneuron lesion in man. |
|
Influence of isoproterenol on contractile protein function, excitation-contraction coupling, and energy turnover of isolated nonfailing human myocardium. |
|
Saffron corms produce both fibrous roots and contractile roots. |
|
Lipopolysaccharide depresses cardiac contractility and B-adrenergic contractile response by decreasing myofilament response to calcium in cardiac myocytes. |
|
The common ostrich heart is a closed system, contractile chamber. |
|
This process is accomplished through the assembly and constriction of a contractile ring, a complex actomyosin network that remains poorly understood on the molecular level. |
|