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191 results for “Cornea”
Quantitative results of the analysis of human bioengineered tissues corresponding to the work "Development of novel squid gladius biomaterials for cornea tissue engineering"
<p>This dataset corresponds to the quantitative data generated in the work entitled "Development of novel squid gladius biomaterials for cornea tissue engineering".</p> <p>Cornea tissue engineering is strictly dependent on the development of biomaterials fulfilling the strict biocompatibility, biomechanical and optical requirements of this organ. In this work, we have generated novel biomaterials from the squid gladius (SG) and their application in cornea tissue engineering was evaluated. Results revealed that the native SG (N-SG) was biocompatible in laboratory animals, although a local inflammatory reaction was driven by the material. Cellularized biomaterials (C-SG) demonstrated that the SG provides an adequate substrate for cell attachment and growth, and corneal epithelial cells cultured on this biomaterial were able to express crystallin alpha, a marker for this type of cells. Biomechanical analyses showed that N-SG biomaterials have higher Young modulus and lower traction deformation than control native corneas (CTR), and C-SG showed similar Young modulus than CTR. Analysis of the optical properties of these samples revealed that the diffuse transmittance of N-SG and C-SG were higher than CTR, with the diffuse reflectance showing the opposite behavior. These results confirm the putative usefulness of this abundant marine-derived biomaterial that can be obtained as a byproduct of the fishing industry.</p>
Quantitative results of the analysis of human native and bioengineered tissues corresponding to the work "Histological, histochemical and immunohistochemical characterization of NANOULCOR nanostructured fibrin-agarose human cornea substitutes generated by tissue engineering"
<p>Dataset containing the quantitative results of the histochemical and immunohistochemical analysis of the following human tissues:</p> <ul> <li>Control native cornea (CTR-C)</li> <li>Control native limbus (CTR-L)</li> <li>Artificial cornea generated by tissue engineering (HAC)</li> </ul> <p>Each tissue type was subjected to histochemical and immunohistochemical analyses and results were quantified using ImageJ software to determine average intensities and area fractions corresponding to positive staining signal for each marker.</p>
РИС. 1. Схематичное иЗображение глаЗа наЗемного лёгочного моллюска. СокраЩениЯ: c – роговица; ec – глаЗнаЯ капсула; r – сетчатка; p – краЯ Зрачка; l – хрусталик, окруженный слоем стекловидного тела; L abs – абсолютное расстоЯние между Зрачком и наружной поверхностью хрусталика; D l – продольный диаметр хрусталика; А – абсолютный диаметр Зрачabs ка; D – поперечный диаметр глаЗа. FIG. 1. Schematic drawing of the eye of a terrestrial pulmonate mollusk. Abbreviation: c – cornea; ec – eye capsule; r – retina; p – edges of the pupil; l – lens, surrounded by a layer of the vitreous body; L abs – the absolute distance between the pupil and the outer surface of the lens; D l – the longitudinal diameter of the lens; А abs – the absolute diameter of the pupil; D e – the transverse diameter of the eye. in Зрачок камерных глаЗ наЗемных брюхоногих моллюсков (Heterobranchia, Stylommatophora)
РИС. 1. Схематичное иЗображение глаЗа наЗемного лёгочного моллюска. СокраЩениЯ: c – роговица; ec – глаЗнаЯ капсула; r – сетчатка; p – краЯ Зрачка; l – хрусталик, окруженный слоем стекловидного тела; L abs – абсолютное расстоЯние между Зрачком и наружной поверхностью хрусталика; D l – продольный диаметр хрусталика; А – абсолютный диаметр Зрачabs ка; D – поперечный диаметр глаЗа. FIG. 1. Schematic drawing of the eye of a terrestrial pulmonate mollusk. Abbreviation: c – cornea; ec – eye capsule; r – retina; p – edges of the pupil; l – lens, surrounded by a layer of the vitreous body; L abs – the absolute distance between the pupil and the outer surface of the lens; D l – the longitudinal diameter of the lens; А abs – the absolute diameter of the pupil; D e – the transverse diameter of the eye.
РИС. 2. ГлаЗ Monachoides incarnata. A. ФотографиЯ препарата иЗолированного глаЗа. B. ФотографиЯ продольного полутонкого среЗа глаЗа. СокраЩениЯ: c – роговица; ec – глаЗнаЯ капсула; r – сетчатка; p – краЯ Зрачка; l – хрусталик, окруженный слоем стекловидного тела. FIG. 2. The eye of Monachoides incarnata. A. Photograph of the preparation of the isolated eye. B. Photograph of the longitudinal semithin section of the eye. Abbreviation: c – cornea; ec – eye capsule; r – retina; p – edges of the pupil; l – lens, surrounded by a layer of the vitreous body. in Зрачок камерных глаЗ наЗемных брюхоногих моллюсков (Heterobranchia, Stylommatophora)
РИС. 2. ГлаЗ Monachoides incarnata. A. ФотографиЯ препарата иЗолированного глаЗа. B. ФотографиЯ продольного полутонкого среЗа глаЗа. СокраЩениЯ: c – роговица; ec – глаЗнаЯ капсула; r – сетчатка; p – краЯ Зрачка; l – хрусталик, окруженный слоем стекловидного тела. FIG. 2. The eye of Monachoides incarnata. A. Photograph of the preparation of the isolated eye. B. Photograph of the longitudinal semithin section of the eye. Abbreviation: c – cornea; ec – eye capsule; r – retina; p – edges of the pupil; l – lens, surrounded by a layer of the vitreous body.
FIG. 8. — Paragiopagurus schnauzer n in Two new species of Parapaguridae (Crustacea, Decapoda, Anomura, Paguroidea) with subconical corneas, and new data on biology of some rare species
FIG. 8. — Paragiopagurus schnauzer n. sp., ♂ holotype 3.3 mm, BIOGEOCAL, stn CP 214, New Caledonia (MNHN-Pg 7615): A, propodus and dactyl of left fourth pereopod, lateral; B, propodus and dactyl of left fifth pereopod, lateral; C, thoracic region, ventral; D, anterior and posterior lobes of thoracic sternite XII (third pereopods), ventral; E, uropods and telson, dorsal; F, left first pleopod, mesial; G, left second pleopod, anterior. Scale bars: A-D, F, G, 1 mm; E, 0.5 mm.
FIG. 3. — Oncopagurus conicus n in Two new species of Parapaguridae (Crustacea, Decapoda, Anomura, Paguroidea) with subconical corneas, and new data on biology of some rare species
FIG. 3. — Oncopagurus conicus n. sp., ♂ holotype 2.0 mm, HALIPRO 1, stn C 858, New Caledonia (MNHN-Pg 7612): A, left second pereopod, lateral; B, dactyl of same, mesial; C, left third pereopod, lateral; D, dactyl of same, mesial; E, propodus and dactyl of left fourth pereopod, lateral; F, propodus and dactyl of left fifth pereopod, lateral. Scale bars: A-D, 1 mm; E, F, 0.20 mm.
FIG. 4. — Oncopagurus conicus n in Two new species of Parapaguridae (Crustacea, Decapoda, Anomura, Paguroidea) with subconical corneas, and new data on biology of some rare species
FIG. 4. — Oncopagurus conicus n. sp., ♂ holotype 2.0 mm, HALIPRO 1, stn C 858, New Caledonia (MNHN-Pg 7612); A, thoracic region, ventral;B, anterior and posterior lobes of thoracic sternite XII (third pereopods), ventral; C, uropods and telson, dorsal; D, left first pleopod, mesial; E, left second pleopod, anterior. Scale bars: A, 0.50 mm; B, D, E, 0.20 mm; C, 0.25 mm.
FIG. 9 in Two new species of Parapaguridae (Crustacea, Decapoda, Anomura, Paguroidea) with subconical corneas, and new data on biology of some rare species
FIG. 9. — Right ocular peduncle and cornea (stippling indicates weakly calcified portion): A-C, Typhlopagurus foresti de Saint Laurent, 1972, ♂ 3.7 mm, SALOMON 1, stn CP 1781 (USNM 1084207, ex MNHN-Pg 6706); D, Sympagurus acinops Lemaitre, 1989, ♂ paratype 3.2 mm, Tongue of the Ocean, Bahamas, 1438 m (USNM 231834); E, Parapagurus saintlaurentae Lemaitre, 1999, ♂ paratype 12.8 mm, N of Madagascar, 4810 m (USNM 276123); A, D, E, lateral; B, mesial; C, ventral. Scale bars: A-D, 0.25 mm; E, 1 mm.
FIG. 7. — Paragiopagurus schnauzer n in Two new species of Parapaguridae (Crustacea, Decapoda, Anomura, Paguroidea) with subconical corneas, and new data on biology of some rare species
FIG. 7. — Paragiopagurus schnauzer n. sp., ♂ holotype 3.3 mm, BIOGEOCAL, stn CP 214, New Caledonia (MNHN-Pg 7615): A, right second pereopod, lateral; B, dactyl of same, mesial; C, right third pereopod, lateral; D, dactyl of same, mesial. Scale bar: 1 mm.
FIG. 1. — Oncopagurus conicus n in Two new species of Parapaguridae (Crustacea, Decapoda, Anomura, Paguroidea) with subconical corneas, and new data on biology of some rare species
FIG. 1. — Oncopagurus conicus n. sp., New Caledonia: A, ♀ paratype 2.0 mm, HALIPRO 1, stn C 858 (MNHN-Pg 7613); B-D, F-J, ♂ holotype 2.0 mm, HALIPRO 1, stn C 858 (MNHN-Pg 7612); E, ovig. ♀ paratype 2.1 mm, BIOGEOCAL, stn CP 214 (MNHN-Pg 7614); A, gill lamella; B, shield and cephalic appendages, dorsal (stippling indicates weakly calcified portion); C, right ocular peduncle and cornea, lateral; D, epistome, dorsolateral (es, epistomial spine; ls, labral spine); E, anterior portion of shield and cephalic appendages, dorsal; F, right antennal peduncle, lateral; G, right cheliped, dorsal; H, chela of same, lateral; I, same, mesial; J, left cheliped, dorsal. Scale bars: A, 0.10 mm; B, 0.50 mm; C-F, 0.25 mm; G-J, 1 mm.
FIG. 6. — Paragiopagurus schnauzer n in Two new species of Parapaguridae (Crustacea, Decapoda, Anomura, Paguroidea) with subconical corneas, and new data on biology of some rare species
FIG. 6. — Paragiopagurus schnauzer n. sp., ♂ paratype 3.2 mm, HALIPRO 2, stn BT 105, Loyalty Islands (MNHN-Pg 6705), left mouthparts, internal: A, mandible; B, maxillule; C, maxilla; D, first maxilliped; E, second maxilliped; F, third maxilliped. Scale bars: 0.25 mm.
FIG. 5. — Paragiopagurus schnauzer n in Two new species of Parapaguridae (Crustacea, Decapoda, Anomura, Paguroidea) with subconical corneas, and new data on biology of some rare species
FIG. 5. — Paragiopagurus schnauzer n. sp., ♂ holotype 3.3 mm, BIOGEOCAL, stn CP 214, New Caledonia (MNHN-Pg 7615): A, gill lamella; B, shield and cephalic appendages, dorsal (stippling indicates weakly calcified portion); C, right ocular peduncle and cornea, lateral; D, epistome, dorsolateral (es, epistomial spine; ls, labral spine); E, right antennal peduncle, lateral; F, right cheliped, dorsal; G, chela of same, lateral; H, same, mesial; I, left cheliped, dorsal. Scale bars: A, C, D, 0.25 mm; B, F-I, 1 mm; E, 0.50 mm.
Matrix FFOCT Imaging of a Human Cornea.
<p>This video shows a volumetric visualization of a human cornea, obtained using full-field optical coherence tomography, without (left) and with (right) multi-scale correction of optical aberrations.</p> <p>Optical aberrations were estimated using a matrix approach of optical imaging, in a method described in the following article:<strong><br></strong></p> <p><em><a href="https://www.nature.com/articles/s41467-024-51619-9">Harnessing forward multiple scattering for optical imaging deep inside an opaque medium, Nature Commun., 15:7349 (2024)</a></em></p> <p><strong>Authors</strong>: Ulysse Najar , Victor Barolle , Paul Balondrade , Mathias Fink , Claude Boccara , Alexandre Aubry</p>
FIG. 1. — Leptoneta cornea n in Six new cave-dwelling species of Leptoneta (Arachnida, Araneae, Leptonetidae) from Beijing and adjacent regions, China
FIG. 1. — Leptoneta cornea n. sp.: A, male left palp in prolateral view; B, male left palp in retrolateral view; C, male left leg I in anterior view; D, female sternum in ventral view; E, female genitalia in ventral view; F, male chelicera in ventral view; G, female genitalia in dorsal view. Abbreviations: C, E, M, conductor, embolus and median apophysis of male palpal organ respectively. Scale bars: A, B, D, E, 0.2 mm; C, 0.4 mm; F, G, 0.1 mm.
Safety and Effectiveness of Collagen-phosphorylcholine Bioengineered Cornea in Patients Requiring Lamellar Keratoplasty
ClinicalTrials.gov study NCT02277054. IPD Sharing: NO. Countries: 1. Publications: 2.
Cornea Donor Study
ClinicalTrials.gov study NCT00006411. IPD Sharing: YES. Countries: 1. Publications: 22.
Loteprednol Etabonate 0.25% for Prevention of Cornea Transplant Rejection
ClinicalTrials.gov study NCT05136443. IPD Sharing: NO. Countries: 1. Publications: 3.
Cornea Preservation Time Study
ClinicalTrials.gov study NCT01537393. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Collagen Cross-Linking With Ultraviolet-A in Asymmetric Corneas
ClinicalTrials.gov study NCT03029104. IPD Sharing: NO. Countries: 1. Publications: 1.
Tree data: Forest Deer Exclosures Near the Cornea Cabin
This experiment consists of 8 plots located in the woods near the Cornea Cabin. The plots are near the north end of Lindemans transect near Cedar Bog Lake, in the same place as the litter/lysimeter samplers set up by Grigal et al. Plots are set up in two rows of four, with one row in the upland forest and the other row on the slope leading down to the cedar swamp. Two fences in each row are fenced to exclude deer (plots 1, 2, 5, and 6 are fenced). Plots are 10m x 20m. Trees inside each plot are tagged and mapped. Trees are tagged with prestamped aluminum tags wired to the trees. Trees are mapped by measuring the distance to the northeast (right) and northwest (left) corner stakes. Data from the experiment include maximum vertical height of previous years growth from ground level at the base of the tree.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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