ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2007
Muscle anatomy is a primary determinant of muscle relaxation dynamics in the lobster (Panulirus interruptus) stomatogastric system.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 11 citations in OpenAlex.
- A multi-scale strategy for discovery of novel endogenous neuropeptides in the crustacean nervous system.Journal of proteomics · 2013Article
- Temperature sensitivity of the pyloric neuromuscular system and its modulation by dopamine.PloS one · 2013Article
- Short-term synaptic plasticity compensates for variability in number of motor neurons at a neuromuscular junction.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012Article
- Direct evidence that stomatogastric (Panulirus interruptus) muscle passive responses are not due to background actomyosin cross-bridges.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2010Article
- Functional consequences of animal-to-animal variation in circuit parameters.Nature neuroscience · 2009Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We stained sarcomere thin filaments with fluorescently labeled phalloidin, measured sarcomere and muscle length, and calculated sarcomere number in pyloric and gastric mill muscles. A wide range of sarcomere lengths (3.25-12.29 microm), muscle lengths (5.9-21.1 mm), and sarcomere numbers (648-3,036) were observed. Sarcomere number differences occurred both because of changes in sarcomere length and muscle length, and sarcomere and muscle length varied independently. This independence, the wide range of sarcomere numbers present, and the muscles being all 'slow', graded muscles allowed us to use these data to test Huxley and Neidergerke's (1954) hypothesis that muscle dynamics depend on sarcomere number. The time constants of exponential fits to contraction relaxations were used to measure muscle dynamics, and comparison of theoretical predictions and experimental results quantitatively confirm the predicted dependence. The differing dynamics of the various pyloric muscles are likely functionally important, and the dependence of muscle dynamics on sarcomere number implies that sarcomere number is likely closely regulated in these muscles. The stomatogastric system may thus be an excellent model system for studying the mechanisms regulating muscle sarcomere number.
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Registered trials
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