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The olfactory organ of schilbid catfish Eutropiichthys vacha (Hamilton, 1822): morphological and ultrastructural studies
BackgroundA study of the olfactory organ structure in freshwater catfish, Eutropiichthys vacha , was carried out to explore the cellular constituents...
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Ovarian structure and oogenesis of two endemic pupfishes from the Yucatán Peninsula: morphofunctional traits related with an estuarine life history
Oogenesis has universal characteristics among fishes, in which structures of vital importance for embryos are assembled. However, these universal...
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Cell proliferation and regeneration in the gill
Seminal studies from the early 20th century defined the structural changes associated with development and regeneration of the gills in goldfish at...
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Functional importance of the mandibular skeleto-muscular system in the bivalved arthropod Heterocypris incongruens (Crustacea, Ostracoda, Cyprididae)
Arthropods with a pair of mandibles (Mandibulata) emerged by the end of the Cambrian period. The mandible is one of the apomorphic characteristics of...
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Interruptible demyelination in avian riboflavin deficient neuropathy
Background and aimsThe evolution of demyelination in individual internodes remains unclear although it has been noticed the paranodal demyelination...
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Status of Isolated Coregonus peled Peled Populations from Mountain Lakes of Altai According to Histological Indices and Elemental Composition of Eye Lens
AbstractThe state of the population of native fish species in three lakes of the Altai Mountains has been considered. The analysis of fish age and...
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Function of the Avian Respiratory System
The gas exchange function of the avian respiratory system is explained. The following important structural—and functional aspects are presented: the...
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Digestive Tract
The digestive tract of zebrafish starts from the mouth, passing by pharyngeal cavity, esophagus, intestine, and ends at anus. The oropharynx is the...
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Another lesson from unmapped reads: in-depth analysis of RNA-Seq reads from various horse tissues
In recent years, a vast amount of sequencing data has been generated and large improvements have been made to reference genome sequences. Despite...
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Air sac and gill vasotocin receptor gene expression in the air-breathing catfish Heteropneustes fossilis exposed to water and air deprivation conditions
Heteropneustes fossilis is a facultative air-breathing freshwater catfish and inhabits ponds, ditches, swamps, marshes and rivers that dry up in...
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Ex vivo expansion and characterization of human corneal endothelium for transplantation: a review
The corneal endothelium plays a key role in maintaining corneal transparency. Its dysfunction is currently treated with penetrating or lamellar...
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Metals Distribution, Histopathological Alterations, and Health Risk Assessment in Different Tissues of Fish (Ctenopharyngodon idella)
Grass carps were exposed to the established lethal concentration (LC) values of copper (Cu), chromium (Cr), and lead (Pb) each for the exposed period...
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Archeological wood conservation with selected organosilicon compounds studied by XFM and nanoindentation
Waterlogged wood conservation is a complex and challenging task. Detailed knowledge about the interactions between the applied chemicals and wood is...
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The aging venous system: from varicosities to vascular cognitive impairment
Aging-induced pathological alterations of the circulatory system play a critical role in morbidity and mortality of older adults. While the...
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Relation of gilthead seabream (Sparus aurata) seasonal reproductive activity to hematology, serum biochemistry, histopathology, and Brdt gene expression
This study aimed to find the relation of Sparus aurata ( gilthead seabream) reproductive activities to some blood parameters as complete blood count,...
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Behind the pathology of macrophage-associated demyelination in inflammatory neuropathies: demyelinating Schwann cells
In inflammatory peripheral demyelinating disorders, demyelination represents segmental demyelination in which the myelin sheath of a myelinating...
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Fascin promotes the invasion of pituitary adenoma through partial dependence on epithelial–mesenchymal transition
The aim of the present study was to investigate the role and potential regulatory mechanisms of fascin in the invasion and epithelial-to-mesenchymal...
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Study on the conservation state of wooden historical structures by means of acoustic attenuation and vacuum microbalance
Acoustic emission is a well-known noninvasive methodology for the study of defects in materials but still rarely applied in the field of cultural...
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Tissues of Paralarvae and Juvenile Cephalopods
Cephalopods have a different development to other molluscs and hatch as modified miniature adults called larvae, juveniles or, in some octopuses,...