Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
9,798
datasets available to search
ShareScore release 0.9.0
Dataset results
9,798 results for “muscles”
Figure 2 in Investigations of the nervous system biomarkers in the brain and muscle of freshwater fish (Oreochromis niloticus) following accumulation of nanoparticles in the tissues
Figure 2. TEM images of muscle tissue sample of fish (O. niloticus) exposed to 1 (A and B), 5 (C and D), and 25 (E and F) mg/L of Al O NPs for 14 days of uptake and 14 days of depuration periods, respectively.
Figure 4 in Investigations of the nervous system biomarkers in the brain and muscle of freshwater fish (Oreochromis niloticus) following accumulation of nanoparticles in the tissues
Figure 4. TEM images of muscle tissue sample of fish (O. niloticus) exposed to 1 (A and B), 5 (C and D), and 25 (E and F) mg/L of TiO2 NPs for 14 days of uptake and 14 days of depuration periods, respectively.
Figure 2 in Effects of in vivo exposures to nanoparticles (Al O , CuO, TiO ) on the activities of ATPases in the gill and muscle of freshwater mussel (Unio tigridis)
Figure 2. Effects of NPs on Na-ATPase activity in the gill of mussels after 14 days. * indicates significant (p <0.05) differences compared to control.
Significance of longitudinal muscle loss in predicting the maintenance efficacy of durvalumab treatment following con-current chemoradiotherapy in patients with NSCLC: a retro-spective study Supplementary Figure
Open the record for dataset details and reuse information.
Mercury and Arsenic muscle concentration data as used in "Mixed model approaches can leverage database information to improve the estimation of size-adjusted contaminant concentrations in fish populations"
<p>These mercury and arsenic concentration data, as recieved from Gretchen Lescord, and downloaded from the MOE fish contaminant database, were used to create the publication Mixed model approaches can leverage database information to improve the estimation of size-adjusted contaminant concentrations in fish populations. The markdown and code used for the analysis of this data can be found on Github at https://github.com/GLFC-WET/HGAS_master.</p>
Data from: Nature of the coupling between neural drive and force-generating capacity in the human quadriceps muscle
The force produced by a muscle depends on both the neural drive it receives and several biomechanical factors. When multiple muscles act on a single joint the nature of the relationship between the neural drive and force-generating capacity of the synergistic muscles is largely unknown. This study aimed to determine the relationship between the ratio of neural drive and the ratio of muscle force-generating capacity between two synergist muscles (vastus lateralis[VL] and medialis[VM]) in humans. Twenty-one participants performed isometric knee extensions at 20% and 50% of maximal voluntary contractions (MVC). Myoelectric activity (surface electromyography [EMG]) provided an index of neural drive. Physiological cross-sectional area (PCSA) was estimated from measurements of muscle volume (magnetic resonance imaging) and muscle fascicle length (3D ultrasound imaging) to represent the muscles' force-generating capacities. Neither PCSA nor neural drive was balanced between VL and VM. There was a large (r=0.68) and moderate (r=0.43) correlation between the ratio of VL/VM EMG amplitude and the ratio of VL/VM PCSA at 20% and 50% of MVC, respectively. This study provides evidence that neural drive is biased by muscle force-generating capacity, the greater the force generating capacity of VL compared to VM, the stronger bias of drive to the VL.
Data from: Incompressible fluid plays a mechanical role in the development of passive muscle tension
Over short time scales, muscle fibres maintain a nearly constant volume of intracellular fluid. This fluid is essential to normal biochemical function, but its role in determining the mechanical properties of muscle has been considered in only a few theoretical analyses. Here we investigate the mechanical role of fluid in a fundamental property of muscle, its development of passive tension in response to stretch. We test a model of muscle structure in which incompressible fluid directly influences passive tension by constraining the geometry of intramuscular connective tissues. This interaction is demonstrated using a simple physical model of muscle morphology comprising a fluid-filled bladder wrapped by helical fibres. The behaviour of the model is compared with that of isolated bullfrog muscle subjected to an osmotic perturbation of intracellular fluid volume. Increasing muscle volume by 40% resulted in 69% increased passive tension, occurring in a manner consistent with the behaviour of the model. These observations support the notion that the interaction of connective tissues with the muscle fibres they surround influences the mechanical behaviour of whole muscles, and highlight the role of fluid as a mechanical component of muscle.
Scaling of locomotor muscle oxidative and glycolytic metabolic enzymes during the ontogeny of regional endothermy in Pacific bluefin tuna (Thunnus orientalis)
<p><span>In this study, the scaling of the oxidative metabolic enzymes citrate synthase (CS) and cytochrome <i>c</i> oxidase (COX) and the glycolytic enzyme pyruvate kinase (PK) in the red ('slow-twitch', oxidative) and the white ('fast-twitch', glycolytic) locomotor muscle of young (~2 to ~16 months of age) Pacific bluefin tuna (<i>Thunnus orientalis</i>) during the ontogeny of red muscle endothermy was investigated. On a mass-specific basis (units g<sup>-1</sup> muscle tissue), CS activity scaled negatively with body mass with scaling coefficients of -0.12 for red muscle and -0.21 for white muscle, whereas COX activity did not scale in either muscle type and PK activity scaled positively in white muscle, with a scaling coefficient of 0.09, but did not scale in red muscle. Thus mass-specific metabolic heat production potential either decreased or remained constant in the red muscle during the ontogeny of red muscle endothermy. In contrast, total red muscle mass, total red muscle CS activity and total red muscle COX activity all scaled positively with body mass with scaling coefficients of 0.90, 0.78 and 0.92, respectively, and each of these correlated positively with the magnitude of the red muscle thermal excess. Thus, increasing total, but not mass-specific, metabolic heat production capacity contributed to the increasing red muscle thermal excess with increasing body size in juvenile <i>T. orientalis</i>. Additionally, for CS and COX, transcript abundance was a poor predictor of enzyme activity. Thus, transcriptional regulation played a limited role in determining the differences between the two muscle types and the scaling relationships for these enzymes.</span></p>
Fig. 7 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 7. Left lateral view of head of Trichogenes longipinnis (Trichogeninae), LIRP 1059 (75.5 mm SL). Antorbital and core of nasal barbels removed.
Fig. 36 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 36. Illustrations of cranial musculature of Nematogenys inermis by (A) Howes (1983a) (right dorsolateral view of anterior region of head) and (B) Diogo et al. (2006) (right lateral view of head). Both illustrations flipped horizontally to facilitate comparisons with other figures. Drawings not altered, but labels modified in order to clarify different names for portions of adductor mandibulae (see explanation on text). Terminology used in the present study marked with gray background.
Fig. 6 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 6. Ventral view of left half of neurocranial floor and suspensorium of Copionodon pecten (Copionodontinae), LIRP 1012 (49.5 mm SL). Internal suspensorial muscles and upper pharyngeal tooth plate with attached levator internus 4 retained; remaining elements of branchial arches removed. Arrow indicates site of origin of adductor operculi.
Fig. 13 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 13. Ventral view of left half of neurocranial floor of Ituglanis cf. gracilior (Trichomycterinae), MZUSP 86821 (53.2 mm SL). Internal suspensorial muscles and upper pharyngeal tooth plate with attached levator internus 4 retained; remaining elements of branchial arches removed.
Fig. 22 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 22. Left lateral view of head of Haemomaster venezuelae (Stegophilinae), LIRP 7438 (36.9 mm SL).
Fig. 28 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 28. Left lateral view of head of Vandellia sanguinea (Vandelliinae), LIRP 7414 (77.1 mm SL). Ventral most premaxillary claw-like teeth removed.
Fig. 9 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 9. Left lateral view of head of Trichomycterus brasiliensis (Trichomycterinae), LIRP 1968 (76.4 mm SL). Core of nasal barbels removed.
Figure 3 in Ontogeny of the jaw and maxillary barbel musculature in the armoured catfish families Loricariidae and Callichthyidae (Loricarioidea, Siluriformes), with a discussion on muscle homologies
Figure 3. Cross-sections of embryonic Ancistrus cf. triradiatus. Only the lower right part of each section is shown. A, anterior to lower jaw; B, at lower jaw; C, posterior to lower jaw (A–C: 6.1 mm SL); D, just posterior to lower jaw (7.0 mm SL) (dark grey indicates cartilage, light grey indicates muscle, stippled areas indicate nerves). Scale bar = 0.2 mm.
Figure 4 from: Žnidaršič N, Mrak P, Tušek-Žnidarič M, Strus J (2012) Exoskeleton anchoring to tendon cells and muscles in molting isopod crustaceans. ZooKeys 176: 39-53. https://doi.org/10.3897/zookeys.176.2445
Figure 4 - Overview of exoskeleton anchoring to tendon cells and muscles in intramarsupial developmental stages of Porcellio scaber. In prehatching embryos (4A, B) and in premolt marsupial mancas (4C a semithin section and 4D) the connections between the exoskeleton, tendon cells and muscle cells were already established. EX exoskeleton ES ecdysal space NC new cuticle TC tendon cell MC muscle cell.
Figure 5 from: Žnidaršič N, Mrak P, Tušek-Žnidarič M, Strus J (2012) Exoskeleton anchoring to tendon cells and muscles in molting isopod crustaceans. ZooKeys 176: 39-53. https://doi.org/10.3897/zookeys.176.2445
Figure 5 - Anchoring junctions between the detached cuticle and the apical part of tendon cells in the prehatching embryo (5A, D, E) and marsupial mancas (5B, C, F) of Porcellio scaber (ultrathin cross-sections). The newly forming cuticle in marsupial mancas, consisting of the epicuticle and pre-ecdysal procuticle, was mechanically connected to tendon cells. Numerous bundles of fibers (arrows) running from tendon cells through the new cuticle and ecdysal space into the detached cuticle are evident. Microtubules were found in close proximity to electron dense plaques at the apical surface of tendon cells. DC detached cuticle NC new cuticle EC epicuticle ES ecdysal space PP pre-ecdysal procuticle TC tendon cell Mt microtubules.
Figure 1 from: Žnidaršič N, Mrak P, Tušek-Žnidarič M, Strus J (2012) Exoskeleton anchoring to tendon cells and muscles in molting isopod crustaceans. ZooKeys 176: 39-53. https://doi.org/10.3897/zookeys.176.2445
Figure 1 - A scheme showing the general architecture of the muscle attachment to the epidermis in arthropods (adapted from Mellon 1992, Lai-Fook and Beaton 1998, Bitsch and Bitsch 2002 and Subramanian et al. 2003). Specialized epithelial cells, named tendon cells, are anchored apically to the cuticle and basally to the muscle cell. aAJ apical adherens junction bAJ basal adherens junction icF intracuticular fibers Mf myofilaments Mt microtubules.
Figure 3 from: Žnidaršič N, Mrak P, Tušek-Žnidarič M, Strus J (2012) Exoskeleton anchoring to tendon cells and muscles in molting isopod crustaceans. ZooKeys 176: 39-53. https://doi.org/10.3897/zookeys.176.2445
Figure 3 - Myotendinous junction in the dorsal parts of pereonites of premolt adult Ligia italica is an extensive anchoring junction. The entire zigzag folded basal and apical membranes of tendon and muscle cells, respectively, are engaged in this outstanding intercellular mechanical connection (3A). Prominent electron dense cytoplasmic plaques are evident along both cell membranes, separated by a thin layer of extracellular matrix (3B). MC muscle cell TC tendon cell.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.