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Figure 2 in Morphological, histological and molecular characteristics of Myxobolus spp. (Cnidaria: Myxozoa) infecting the kidney of silver carp in Lake Taihu
Figure 2. Spores of Myxobolus lieni (Nie & Li, 1973) (A–B) and M. varius (Achmerov, 1960) (C–D) from Hypophthalmichthys molitrix, digitized images. Scale bars = 10 μm.
Figure 3 in Morphological, histological and molecular characteristics of Myxobolus spp. (Cnidaria: Myxozoa) infecting the kidney of silver carp in Lake Taihu
Figure 3. Histopathological sections of Hypophthalmichthys molitrix kidney infected by Myxobolus spp. A–C. M. lieni (Nie & Li, 1973), in the renal tubules; D. M. varius (Achmerov, 1960), in the renal interstitium. Arrows indicate the plasmodia which contains 2–4 mature myxospores. Scale bars = 10 μm.
Figure 4 in Morphological, histological and molecular characteristics of Myxobolus spp. (Cnidaria: Myxozoa) infecting the kidney of silver carp in Lake Taihu
Figure 4. Bayesian inference trees constructed with the SSU rDNA sequences. Numbers near the nodes shows the posterior probability and bootstrap values of BI and maximum likelihood (ML), respectively. Information of GenBank accession number, infection site, host and locality follows the species name. Abbreviations: B—brain; E—encephalocoele; F—fin; G—gills; GA—gill arch; GL— capillary network of the gill lamellae; H—heart; I—intestine; K—kidney; M—mesentery; MP- palate of the mouse; MC—muscle cells; SB—swim bladder; UB—urinary bladder.
F I G U R E 3 in Effects of dietary hydrolysate supplementation on growth, body composition, hematological responses, and liver histology of juvenile giant trevally (Caranx ignobilis Forsskal, 1775)
F I G U R E 3 Proximate composition in the whole body of juvenile giant trevally fed tested diets for 8 weeks. ns, non-significant. Different subscript letters indicate differences among treatments.
F I G U R E 4 in Effects of dietary hydrolysate supplementation on growth, body composition, hematological responses, and liver histology of juvenile giant trevally (Caranx ignobilis Forsskal, 1775)
F I G U R E 4 Hematological and serum biochemical parameters of giant trevally fed experimental diets for 8 weeks. ns, non-significant. Different subscript letters indicate differences among treatments.
Fig. 2. Juvenile Orthacanthus platypternus, Stephanian B in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 2. Juvenile Orthacanthus platypternus, Stephanian B (Upper Carboniferous) of Hamilton, USA (A) compared to juvenile of O. bohemicus, Westphalian D (Upper Carboniferous) of Bohemia, Czech Republic (B), showing the relative position of the dorsal spine. A, modified from Zidek (1993b: fig. 1); B, modified from Soler-Gijón (2004: fig. 3C).
Fig. 3 in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 3. External morphology of dorsal spines of Orthacanthus platypternus (Cope, 1884), Lower Permian, Craddock Bone Bed, Texas, USA. A. HMNS-T1, juvenile, lateral view. B. SMU 68799, juvenile, posterior view. C. SMU 68800, juvenile, posterior (C1) and postero-lateral (C2) views. D. SMU 68801, adult, denticulated, postero-lateral view (D1) and non-denticulated, posterior view (D2) regions. Numbers 1 to 17 point to the positions of the denticles along the posterior sides of the spines. Numbers 1' to 17' correspond to the right row of denticles. Grey areas in B–D2 represent sedimentary matrix. Scale bars 5 mm.
Fig. 6 in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 6. Cross-sections of dorsal spines (non-denticulated region) of Orthacanthus platypternus (Cope, 1884), Lower Permian, Craddock Bone Bed, Texas, USA. Comparison between the smallest, specimen HMNS-T1 (A), and the largest Orthacanthus dorsal spine sampled, specimen HMNS-J1 (B). Posterior sides of the spines are pointing to the top of the figure.
Fig. 9 in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 9. Bivariate plots of relationship between width and height in cross sections of Orthacanthus dorsal spines. A. Orthacanthus platypternus (Lower Permian, Craddock Bone Bed, Texas, USA). B. Comparison of O. platypternus with O. meridionalis (Upper Carboniferous, Puertollano, Spain) and Orthacanthus sp. (Upper Carboniferous, Robinson, Kansas, USA). Note the linear regression (y = 0.91x + 0.15; n = 65, r2 = 0.98) calculated by Donelan and Johnson (1997) for the isolated dorsal spines of O. platypternus. The maximum and minimal values are also included here for a comparative reference; values of the rest of the specimens are not included for clarity. Grey shaded areas indicate approximate intervals of the three size clusters corresponding to juveniles and adults according the biometric analysis by Donelan and Johnson (size intervals are based on unpublished data presented in a poster at 57th Annual Meeting of the Society of Vertebrate Paleontology, Chicago, October 1997). Note the ontogenetic trajectories of several individuals of O. platypternus (HMNS-T2 and HMNS-J3), O. meridionalis (PU-XE19, 20, 74 and 76) and Orthacanthus sp. (KUVP-72324) showing stages SP1–n spine proper). Data from O. meridionalis and Orthacanthus sp. after Soler-Gijón (1999: table 1 and figs. 4–8). Vertical grey arrows point to the position in the linear regression for SMU specimens according the maximum width values at the proximal end of denticulated regions: 3.5 mm (SMU 68799), 4.5 mm (SMU 68800) and 8.4 mm (SMU 68801). Abbreviations: SP1–5, spines 1–5; SpPr, spine proper.
Fig. 8. A in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 8. A. Reconstruction of the dorsal spine (mainly the denticulated region) of Orthacanthus platypternus, based on specimens HMNS-T1 and HMNS-T2. B, C. Reconstructions of the dorsal spine of Orthacanthus meridionalis (modified from Soler-Gijón 1999: fig. 10); PU-XE76 (B) PU-XE19 (C). Note that distal denticles belong to the first spine (juvenile). The intersection of the first major growth line and the denticulated border of the spine indicate the proximal end of the denticulated region of the first spine; the following "spines" exhibit the distal denticles and those corresponding to each new growth stage.
Fig. 5 in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 5. Serial cross-sections (A, C, D) of dorsal spine of Orthacanthus platypternus (Cope, 1884), Lower Permian, Craddock Bone Bed, Texas, USA; specimen HMNS-J3, where A represents the most proximal section and D is the most distal. B. Detail of section in A showing three minor growth lines close to the base of the right denticle in the figure (arrows).
Fig. 4 in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 4. Serial longitudinal sections of dorsal spine of Orthacanthus platypternus (Cope, 1884), Lower Permian, Craddock Bone Bed, Texas, USA; specimen HMNS-T2, where A represents the most proximal section and E is the most distal. Samples C–E include the denticulate region. Photos of the sections (A1–E1), interpretative drawings (A2–E2). Scale bars 1 mm.
Fig. 7 in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 7. Cross-section of dorsal spine of Orthacanthus platypternus (Cope, 1884), Lower Permian, Craddock Bone Bed, Texas, USA; specimen HMNS-J7 non-denticulated region) showing color-banding in centrifugal trabecular dentine and growth lines in lamellar dentine. A. General view (posterior side of spine towards the top of the figure). B, C. Details of periphery showing pairs of growth lines (marked by arrows) in the centrifugal lamellar dentine. D. Detail of interglobular spaces within the centripetal lamellar dentine (arrows denote interglobular spaces).
Fig. 1 in Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications
Fig. 1. Baylor County map (A) and stratigraphic section (B) at the Craddock Ranch (denoted with a star), Seymour Texas, lower Clear Fork Formation (cf. Nelson et al. 2013). Numbers 1–5 denote units through the sampled portion of the Craddock Ranch exposure.
HISTOLOGICAL EVALUATION OF THE EFFECTS OF ACTION BITTERS ON THE TESTES OF ADULT MALE WISTAR RATS
<p>Action Bitters, a popular herbal concoction, has been traditionally used to treat various health conditions, including those related to the male reproductive system. Despite its widespread use, there is a dearth of scientific evidence on its effects on the testes. This study aimed to investigate the histological changes in the testes of adult male Wistar rats following administration of Action Bitters.</p> <p><strong>Methods:</strong> Fifteen adult male Wistar rats were randomly divided into three groups (n = 5). Group A served as the normal control, while groups B and C received 10% (0.66ml/kg) and 5% (0.33ml/kg) lethal dose 50 (Ld50) of Action Bitters, respectively. The Ld50 values were calculated based on the median lethal dose of the herbal remedy. The rats were administered the herbal remedy for a period of one month, after which they were sacrificed, and their testes collected for histological examination.</p> <p><strong>Results:</strong> Microscopic examination of the testicular tissue samples revealed no evidence of abnormal cellular changes or tissue damage. The tissue samples appeared normal, with no signs of inflammation, necrosis, or apoptosis.</p> <p><strong>Discussion:</strong> The findings of this study suggest that Action Bitters does not induce histological changes in the testes of adult male Wistar rats. These results provide new insights into the potential mechanism of action of the herbal medication on testicular function. The study highlights the importance of considering both histological and biochemical assessments when evaluating the effects of herbal remedies on reproductive health.</p> <p><strong>Conclusion:</strong> This study contributes to the growing body of knowledge on the effects of herbal remedies on the male reproductive system. The findings suggest that Action Bitters may be a safe and effective herbal remedy for treating reproductive health issues, and further research is warranted to explore its potential benefits and mechanisms of action.</p>
FIG. 3 in Structural, functional, and physiological signals in ichthyosaur vertebral centrum microanatomy and histology
FIG. 3. — Classical sections of ichthyosaur vertebral centra illustrating the intraspecific size variation (interpolated as possible ontogenetic variation): A-D, Stenopterygius sp.; A, B, juvenile vertebra SMNS uncat.; C, D, adult vertebra SMNS uncat.; E-H, Ichthyosauria new taxon A, Middle Triassic, Nevada, LACM 8031; E, F, fetal vertebra LACM DI 158109; G, H, adult vertebra DI 158109; A, C, E, G, transverse (and half-transverse) sections; B, D, F, H, sagittal sections. Scale bars: 5 mm.
FIG. 2 in Structural, functional, and physiological signals in ichthyosaur vertebral centrum microanatomy and histology
FIG. 2. — Virtual (A, B) and classical (C-G) sections of ichthyosaur vertebral centra illustrating the microanatomical types 1 (A-E) and 2 (F, G): A, B, Grippioidea indet., Lower Triassic, Russia, NSM PV 23854; C, D, Grippioidea indet., Middle Triassic, Nevada, LACM uncat. Nevada; D, E, Mixosaurus sp. PIMUZ T 2004; F, Temnodontosaurus sp. half transverse section; G, Eurhinosaurus sp. SMNS 50913 sagittal section; A, C, F, transverse sections; B, D, E, G, sagittal (and half mid-sagittal) sections. Abbreviations: GC, growth center; ET, endochondral territory; PT, periosteal territory. Scale bars: 5 mm.
FIG. 5 in Structural, functional, and physiological signals in ichthyosaur vertebral centrum microanatomy and histology
FIG. 5. — Histological features of ichthyosaur vertebrae: A, Stenopterygius sp. SMNS uncat. Longitudinal section. Numerous Sharpey's fibers at the limit between the periosteal (left) and endochondral (right) territories in PL with gypsum filter; pointed by arrows; B, C, Temnodontosaurus sp. SMNS uncat. parasagittal section showing the compact deposits of parallel-fibered bone (blue) in the outer core of the vertebra and secondary bone (red) in its inner core in PL with gypsum filter (B) and NL (C); D, Temnodontosaurus sp. SMNS uncat. Transverse section showing on the right the layer of rather compact parallel-fibered bone lining the centrum core (NC, notochordal canal), whereas the rest of the centrum is spongious (left) in NL. Scale bars: A, 200 µm; B, D, 1 mm; C, 500 µm.
FIG. 1 in Structural, functional, and physiological signals in ichthyosaur vertebral centrum microanatomy and histology
FIG. 1. — Consensus phylogenetic tree of Ichthyopterygia including (in bold) the taxa sampled for this study; modified from Ji et al. (2016); with associated silhouettes (from McGowan & Motani 2003) and label of the microanatomical type encountered.
Fig. 3 in Histological Changes In Common Toad, Bufo Bufo (Anura, Bufonidae), Liver Tissue Under Conditions Of Anthropogenically Transformed Ecosystems
Fig. 3. Adipose dystrophy and hypopigmentation of Fig. 4. Well-seen adipose dystrophy combined with common toad's liver. Vacuol and pigment remain- protein dystrophy and a foci of necrosis in the middle ings are seen in melano-macrophagal aggregations. of the picture. Destroyed cells and pigment remain- Hematoxyline-eosine staining, ×200. ings are seen in melano-macrophagal aggregations. Hematoxyline-eosine staining, ×200.
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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.