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Alsafy MAM, El-Gendy SAA, Atkinson B, Sturrock CJ, Kamal BM, Alibhai A, Abd-Elhafeez HH, Soliman S, Rashwan AM, Roshdy K, Rutland CS. Novel Insights Into the Architecture of Macro and Microstructures in Cattle Ossa Cordis. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2024; 30:574-593. [PMID: 38838186 DOI: 10.1093/mam/ozae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/22/2024] [Accepted: 04/07/2024] [Indexed: 06/07/2024]
Abstract
Ossa cordis, bones located within the heart trigones, are often classified as heterotopic or ectopic bones. Despite their high prevalence in cattle and some other bovids, little is known about their structure or development. Scanning electron microscopy, X-ray microtomography, gross dissections, and measurements showed the anatomical locations, prevalence, shapes, and measurements of the cardiac bones in both Egyptian Baladi cattle and Holstein-Friesians. All cattle (n = 12) had an Ossa cordis dextrum (average = 50.70 × 20.91 × 5.40 mm). Additionally, 80% Egyptian Baladi and 57% Holstein-Friesian had a smaller Ossa cordis sinistrum (average = 24.94 × 12.75 × 4.12 mm). Egyptian Baladi Ossa cordis were smaller than observed in Holstein-Friesians. Energy-dispersive X-ray analysis showed the elemental constitution (carbon, oxygen, calcium, nitrogen, phosphorus, sodium, and magnesium) of Ossa cordis and Cartilago cordis. These imaging techniques, plus four histological stains (hematoxylin and eosin, Crossman's trichrome, Alcian blue with Van Gieson, and Sirius Red) and microscopy, demonstrated osteoblasts, osteocytes, osteoclasts, astrocytes, blood vessels, bone marrow, lamellar and woven bone, cortical bone, trabeculations with pores and canaliculi, and fibrous components including collagen in the Ossa cordis dextrum and sinistrum. Hyaline cartilage and fibrocartilage (chondrocytes and cartilage matrix) were found within and surrounding the Ossa cordis. These findings were additionally compared against other cattle breeds and species.
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Affiliation(s)
- Mohamed A M Alsafy
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Abis 10th, Alexandria, PO 21944, Egypt
| | - Samir A A El-Gendy
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Abis 10th, Alexandria, PO 21944, Egypt
| | - Brian Atkinson
- Hounsfield Facility, School of Biosciences, University of Nottingham, College Road, Sutton Bonington, Leicestershire LE12 5RD, UK
| | - Craig J Sturrock
- Hounsfield Facility, School of Biosciences, University of Nottingham, College Road, Sutton Bonington, Leicestershire LE12 5RD, UK
| | - Basma M Kamal
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 6010230, Egypt
| | - Aziza Alibhai
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Science, University of Nottingham, College Road, Sutton Bonington, Leicestershire LE12 5RD, UK
| | - Hanan H Abd-Elhafeez
- Department of Cell and Tissues, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt
| | - Soha Soliman
- Department of Histology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - Ahmed M Rashwan
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Damanhour University, Al Gomhouria St, Scientic Campus, Damanhour 22511, Egypt
| | - Karam Roshdy
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Alexandria University, Abis 10th, Alexandria, PO 21944, Egypt
| | - Catrin S Rutland
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Science, University of Nottingham, College Road, Sutton Bonington, Leicestershire LE12 5RD, UK
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Alsafy MAM, El-Gendy SAA, Kamal BM, Rutland CS, Abd-Elhafeez HH, Soliman S, ELKhamary AN, Nomir AG. Heart ventricles of the dromedary camel (Camelus dromedarius): new insights from sectional anatomy, 3D computed tomography, and morphometry. BMC ZOOL 2023; 8:12. [PMID: 37596650 PMCID: PMC10436409 DOI: 10.1186/s40850-023-00173-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 08/01/2023] [Indexed: 08/20/2023] Open
Abstract
BACKGROUND Dromedary camel heart morphology is a crucial research topic with clinical applications. The study aims to understand the dromedary camel anatomy, morphology, and architecture of the ventricular mass. RESULTS Sagittal and transverse gross sections were compared to sagittal, transverse, and 3D render volume reconstruction computed tomography (CT) scans. The subepicardial fat, which covered the heart base, the coronary groove (sulcus coronarius), the left longitudinal interventricular groove (sulcus interventricularis paraconalis), and the right longitudinal interventricular groove (sulcus interventricularis subsinuosus), had a relatively low density with a homogeneous appearance in the 3D render volume CT. The pericardium in the color cardiac window was identified better than the black and white window (ghost). Transverse and sagittal CT scans demonstrated the internal structures of the heart, including the right atrioventricular orifice (ostium atrioventriculare dextrum), right atrioventricular orifice (ostium atrioventriculare sinistrum), and aortic orifice (ostium aortae), chordae tendineae, the cusps of the valves (cuspis valvae), and the papillary muscles (musculi papillares). The papillary muscle (musculi papillares) was presented with a more moderate density than the rest of the heart, and the cusps of the valves (cuspis valvae) had a lower density. The ventricular wall (margo ventricularis) exhibited different densities: the outer part was hyperdense, while the inner part was hypodense. The thicknesses of the ventricular mural wall and the interventricular septum (septum atrioventriculare) were highest at the midpoint of the ventricular mass, and the lowest value was present toward the apical part. The coronary groove (sulcus coronarius) circumference measured 51.14 ± 0.72 cm, and the fat in the coronary groove (sulcus coronarius) (56 ± 6.55 cm2) represented 28.7% of the total cross-sectional area. CONCLUSION The current study provided more information about ventricular mass measurements by gross and CT analysis on the heart, which provides a valuable guide for future cardiac CT investigations in camels in vivo.
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Affiliation(s)
- Mohamed A M Alsafy
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt.
| | - Samir A A El-Gendy
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Basma M Kamal
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Catrin S Rutland
- School of Veterinary Medicine and Science, Faculty of Medicine, University of Nottingham, Nottingham, UK
| | - Hanan H Abd-Elhafeez
- Department of Cell and Tissues, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Soha Soliman
- Department of Histology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | - Ahmed N ELKhamary
- Department of Surgery, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Ahmed G Nomir
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
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