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Schwarz M, Geryk J, Havlovicová M, Mihulová M, Turnovec M, Ryba L, Martinková J, Macek M, Palmer R, Kočandrlová K, Velemínská J, Moslerová V. Body mass index is an overlooked confounding factor in existing clustering studies of 3D facial scans of children with autism spectrum disorder. Sci Rep 2024; 14:9873. [PMID: 38684768 PMCID: PMC11059264 DOI: 10.1038/s41598-024-60376-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 04/22/2024] [Indexed: 05/02/2024] Open
Abstract
Cluster analyzes of facial models of autistic patients aim to clarify whether it is possible to diagnose autism on the basis of facial features and further to stratify the autism spectrum disorder. We performed a cluster analysis of sets of 3D scans of ASD patients (116) and controls (157) using Euclidean and geodesic distances in order to recapitulate the published results on the Czech population. In the presented work, we show that the major factor determining the clustering structure and consequently also the correlation of resulting clusters with autism severity degree is body mass index corrected for age (BMIFA). After removing the BMIFA effect from the data in two independent ways, both the cluster structure and autism severity correlations disappeared. Despite the fact that the influence of body mass index (BMI) on facial dimensions was studied many times, this is the first time to our knowledge when BMI was incorporated into the faces clustering study and it thereby casts doubt on previous results. We also performed correlation analysis which showed that the only correction used in the existing clustering studies-dividing the facial distance by the average value within the face-is not eliminating correlation between facial distances and BMIFA within the facial cohort.
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Affiliation(s)
- Martin Schwarz
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic.
- PRENET - Laboratoře Lékařské Genetiky s.r.o., Pardubice, Czech Republic.
| | - Jan Geryk
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Markéta Havlovicová
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Michaela Mihulová
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Marek Turnovec
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Lukáš Ryba
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Júlia Martinková
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Milan Macek
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Richard Palmer
- Faculty of Science and Engineering, Curtin University, Perth, Australia
| | - Karolína Kočandrlová
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
| | - Jana Velemínská
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
| | - Veronika Moslerová
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
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Vue Z, Garza‐Lopez E, Neikirk K, Katti P, Vang L, Beasley H, Shao J, Marshall AG, Crabtree A, Murphy AC, Jenkins BC, Prasad P, Evans C, Taylor B, Mungai M, Killion M, Stephens D, Christensen TA, Lam J, Rodriguez B, Phillips MA, Daneshgar N, Koh H, Koh A, Davis J, Devine N, Saleem M, Scudese E, Arnold KR, Vanessa Chavarin V, Daniel Robinson R, Chakraborty M, Gaddy JA, Sweetwyne MT, Wilson G, Zaganjor E, Kezos J, Dondi C, Reddy AK, Glancy B, Kirabo A, Quintana AM, Dai D, Ocorr K, Murray SA, Damo SM, Exil V, Riggs B, Mobley BC, Gomez JA, McReynolds MR, Hinton A. 3D reconstruction of murine mitochondria reveals changes in structure during aging linked to the MICOS complex. Aging Cell 2023; 22:e14009. [PMID: 37960952 PMCID: PMC10726809 DOI: 10.1111/acel.14009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/01/2023] [Accepted: 09/19/2023] [Indexed: 11/15/2023] Open
Abstract
During aging, muscle gradually undergoes sarcopenia, the loss of function associated with loss of mass, strength, endurance, and oxidative capacity. However, the 3D structural alterations of mitochondria associated with aging in skeletal muscle and cardiac tissues are not well described. Although mitochondrial aging is associated with decreased mitochondrial capacity, the genes responsible for the morphological changes in mitochondria during aging are poorly characterized. We measured changes in mitochondrial morphology in aged murine gastrocnemius, soleus, and cardiac tissues using serial block-face scanning electron microscopy and 3D reconstructions. We also used reverse transcriptase-quantitative PCR, transmission electron microscopy quantification, Seahorse analysis, and metabolomics and lipidomics to measure changes in mitochondrial morphology and function after loss of mitochondria contact site and cristae organizing system (MICOS) complex genes, Chchd3, Chchd6, and Mitofilin. We identified significant changes in mitochondrial size in aged murine gastrocnemius, soleus, and cardiac tissues. We found that both age-related loss of the MICOS complex and knockouts of MICOS genes in mice altered mitochondrial morphology. Given the critical role of mitochondria in maintaining cellular metabolism, we characterized the metabolomes and lipidomes of young and aged mouse tissues, which showed profound alterations consistent with changes in membrane integrity, supporting our observations of age-related changes in muscle tissues. We found a relationship between changes in the MICOS complex and aging. Thus, it is important to understand the mechanisms that underlie the tissue-dependent 3D mitochondrial phenotypic changes that occur in aging and the evolutionary conservation of these mechanisms between Drosophila and mammals.
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Affiliation(s)
- Zer Vue
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | | | - Kit Neikirk
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - Prasanna Katti
- National Heart, Lung and Blood Institute, National Institutes of HealthMarylandBethesdaUSA
| | - Larry Vang
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - Heather Beasley
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - Jianqiang Shao
- Central Microscopy Research FacilityUniversity of IowaIowaIowa CityUSA
| | - Andrea G. Marshall
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - Amber Crabtree
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - Alexandria C. Murphy
- Department of Biochemistry and Molecular Biology, The Huck Institute of the Life SciencesPennsylvania State UniversityPennsylvaniaState CollegeUSA
| | - Brenita C. Jenkins
- Department of Biochemistry and Molecular Biology, The Huck Institute of the Life SciencesPennsylvania State UniversityPennsylvaniaState CollegeUSA
| | - Praveena Prasad
- Department of Biochemistry and Molecular Biology, The Huck Institute of the Life SciencesPennsylvania State UniversityPennsylvaniaState CollegeUSA
| | - Chantell Evans
- Department of Cell BiologyDuke University School of MedicineNorth CarolinaDurhamUSA
| | - Brittany Taylor
- J. Crayton Pruitt Family Department of Biomedical EngineeringUniversity of FloridaFloridaGainesvilleUSA
| | - Margaret Mungai
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - Mason Killion
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - Dominique Stephens
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | | | - Jacob Lam
- Department of Internal MedicineUniversity of IowaIowaIowa CityUSA
| | | | - Mark A. Phillips
- Department of Integrative BiologyOregon State UniversityOregonCorvallisUSA
| | - Nastaran Daneshgar
- Department of Integrative BiologyOregon State UniversityOregonCorvallisUSA
| | - Ho‐Jin Koh
- Department of Biological SciencesTennessee State UniversityTennesseeNashvilleUSA
| | - Alice Koh
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
- Department of MedicineVanderbilt University Medical CenterTennesseeNashvilleUSA
| | - Jamaine Davis
- Department of Biochemistry, Cancer Biology, Neuroscience, and PharmacologyMeharry Medical CollegeTennesseeNashvilleUSA
| | - Nina Devine
- Department of Integrative BiologyOregon State UniversityOregonCorvallisUSA
| | - Mohammad Saleem
- Department of MedicineVanderbilt University Medical CenterTennesseeNashvilleUSA
| | - Estevão Scudese
- Laboratory of Biosciences of Human Motricity (LABIMH) of the Federal University of State of Rio de Janeiro (UNIRIO)Rio de JaneiroBrazil
- Sport Sciences and Exercise Laboratory (LaCEE)Catholic University of Petrópolis (UCP)PetrópolisState of Rio de JaneiroBrazil
| | - Kenneth Ryan Arnold
- Department of Ecology and Evolutionary BiologyUniversity of California at IrvineCaliforniaIrvineUSA
| | - Valeria Vanessa Chavarin
- Department of Ecology and Evolutionary BiologyUniversity of California at IrvineCaliforniaIrvineUSA
| | - Ryan Daniel Robinson
- Department of Ecology and Evolutionary BiologyUniversity of California at IrvineCaliforniaIrvineUSA
| | | | - Jennifer A. Gaddy
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
- Department of MedicineVanderbilt University Medical CenterTennesseeNashvilleUSA
- Department of Medicine Health and SocietyVanderbilt UniversityTennesseeNashvilleUSA
- Department of Pathology, Microbiology and ImmunologyVanderbilt University Medical CenterTennesseeNashvilleUSA
- Department of Veterans AffairsTennessee Valley Healthcare SystemsTennesseeNashvilleUSA
| | - Mariya T. Sweetwyne
- Department of Laboratory Medicine and PathologyUniversity of WashingtonWashingtonSeattleUSA
| | - Genesis Wilson
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - Elma Zaganjor
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
| | - James Kezos
- Sanford Burnham Prebys Medical Discovery InstituteCaliforniaLa JollaUSA
| | - Cristiana Dondi
- Sanford Burnham Prebys Medical Discovery InstituteCaliforniaLa JollaUSA
| | | | - Brian Glancy
- National Heart, Lung and Blood Institute, National Institutes of HealthMarylandBethesdaUSA
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of HealthMarylandBethesdaUSA
| | - Annet Kirabo
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
- Department of MedicineVanderbilt University Medical CenterTennesseeNashvilleUSA
| | - Anita M. Quintana
- Department of Biological Sciences, Border Biomedical Research CenterUniversity of Texas at El PasoTexasEl PasoUSA
| | - Dao‐Fu Dai
- Department of PathologyUniversity of Johns Hopkins School of MedicineMarylandBaltimoreUSA
| | - Karen Ocorr
- Sanford Burnham Prebys Medical Discovery InstituteCaliforniaLa JollaUSA
| | - Sandra A. Murray
- Department of Cell Biology, School of MedicineUniversity of PittsburghPennsylvaniaPittsburghUSA
| | - Steven M. Damo
- Department of Life and Physical SciencesFisk UniversityTennesseeNashvilleUSA
- Center for Structural BiologyVanderbilt UniversityTennesseeNashvilleUSA
| | - Vernat Exil
- Department of Pediatrics, Carver College of MedicineUniversity of IowaIowaIowa CityUSA
- Department of Pediatrics, Division of CardiologySt. Louis University School of MedicineMissouriSt. LouisUSA
| | - Blake Riggs
- Department of BiologySan Francisco State UniversityCaliforniaSan FranciscoUSA
| | - Bret C. Mobley
- Department of PathologyVanderbilt University Medical CenterTennesseeNashvilleUSA
| | - Jose A. Gomez
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
- Department of MedicineVanderbilt University Medical CenterTennesseeNashvilleUSA
| | - Melanie R. McReynolds
- Department of Biochemistry and Molecular Biology, The Huck Institute of the Life SciencesPennsylvania State UniversityPennsylvaniaState CollegeUSA
| | - Antentor Hinton
- Department of Molecular Physiology and BiophysicsVanderbilt UniversityTennesseeNashvilleUSA
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Heinen-Weiler J, Hasenberg M, Heisler M, Settelmeier S, Beerlage AL, Doepper H, Walkenfort B, Odersky A, Luedike P, Winterhager E, Rassaf T, Hendgen-Cotta UB. Superiority of focused ion beam-scanning electron microscope tomography of cardiomyocytes over standard 2D analyses highlighted by unmasking mitochondrial heterogeneity. J Cachexia Sarcopenia Muscle 2021; 12:933-954. [PMID: 34120411 PMCID: PMC8350221 DOI: 10.1002/jcsm.12742] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 04/16/2021] [Accepted: 05/21/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Cardioprotection by preventing or repairing mitochondrial damage is an unmet therapeutic need. To understand the role of cardiomyocyte mitochondria in physiopathology, the reliable characterization of the mitochondrial morphology and compartment is pivotal. Previous studies mostly relied on two-dimensional (2D) routine transmission electron microscopy (TEM), thereby neglecting the real three-dimensional (3D) mitochondrial organization. This study aimed to determine whether classical 2D TEM analysis of the cardiomyocyte ultrastructure is sufficient to comprehensively describe the mitochondrial compartment and to reflect mitochondrial number, size, dispersion, distribution, and morphology. METHODS Spatial distribution of the complex mitochondrial network and morphology, number, and size heterogeneity of cardiac mitochondria in isolated adult mouse cardiomyocytes and adult wild-type left ventricular tissues (C57BL/6) were assessed using a comparative 3D imaging system based on focused ion beam-scanning electron microscopy (FIB-SEM) nanotomography. For comparison of 2D vs. 3D data sets, analytical strategies and mathematical comparative approaches were performed. To confirm the value of 3D data for mitochondrial changes, we compared the obtained values for number, coverage area, size heterogeneity, and complexity of wild-type cardiomyocyte mitochondria with data sets from mice lacking the cytosolic and mitochondrial protein BNIP3 (BCL-2/adenovirus E1B 19-kDa interacting protein 3; Bnip3-/- ) using FIB-SEM. Mitochondrial respiration was assessed on isolated mitochondria using the Seahorse XF analyser. A cardiac biopsy was obtained from a male patient (48 years) suffering from myocarditis. RESULTS The FIB-SEM nanotomographic analysis revealed that no linear relationship exists for mitochondrial number (r = 0.02; P = 0.9511), dispersion (r = -0.03; P = 0.9188), and shape (roundness: r = 0.15, P = 0.6397; elongation: r = -0.09, P = 0.7804) between 3D and 2D results. Cumulative frequency distribution analysis showed a diverse abundance of mitochondria with different sizes in 3D and 2D. Qualitatively, 2D data could not reflect mitochondrial distribution and dynamics existing in 3D tissue. 3D analyses enabled the discovery that BNIP3 deletion resulted in more smaller, less complex cardiomyocyte mitochondria (number: P < 0.01; heterogeneity: C.V. wild-type 89% vs. Bnip3-/- 68%; complexity: P < 0.001) forming large myofibril-distorting clusters, as seen in human myocarditis with disturbed mitochondrial dynamics. Bnip3-/- mice also show a higher respiration rate (P < 0.01). CONCLUSIONS Here, we demonstrate the need of 3D analyses for the characterization of mitochondrial features in cardiac tissue samples. Hence, we observed that BNIP3 deletion physiologically acts as a molecular brake on mitochondrial number, suggesting a role in mitochondrial fusion/fission processes and thereby regulating the homeostasis of cardiac bioenergetics.
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Affiliation(s)
- Jacqueline Heinen-Weiler
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany.,Imaging Center Essen (IMCES), Electron Microscopy Unit (EMU), Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Mike Hasenberg
- Imaging Center Essen (IMCES), Electron Microscopy Unit (EMU), Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Martin Heisler
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Stephan Settelmeier
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Anna-Lena Beerlage
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Hannah Doepper
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Bernd Walkenfort
- Imaging Center Essen (IMCES), Electron Microscopy Unit (EMU), Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Andrea Odersky
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Peter Luedike
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Elke Winterhager
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany.,Imaging Center Essen (IMCES), Electron Microscopy Unit (EMU), Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Tienush Rassaf
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Ulrike B Hendgen-Cotta
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University of Duisburg-Essen, Essen, Germany
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Hadžiomerović N, Avdić R, Minnich B, Erlbacher K, Mlaćo N, Tandir F, Bejdić P. 3D morphometric study of domestic fowl glomerulus-A scanning electron microscope study of vascular corrosion casts. Anat Histol Embryol 2021; 50:678-682. [PMID: 33882625 DOI: 10.1111/ahe.12676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 04/06/2021] [Indexed: 11/28/2022]
Abstract
Microvascularization of domestic fowl kidneys was studied using scanning electron microscopy (SEM) of vascular corrosion casts (VCCs). Two types of nephrons, mammalian-type (MT) and reptilian-type (RT) nephrons and their glomerular structure were analysed quantitatively by 3D morphometry. A significant difference in shape and size between the MT and RT glomeruli was found. The mean diameter of the RT glomeruli was about 56 µm, while that of MT glomeruli was significantly larger, namely about 80 µm. The afferent arterioles in mammalian-type glomeruli usually bifurcated into two lobular branches and formed a complex glomerular capillary network with numerous loops. Reptilian-type glomeruli consisted of a single capillary forming few loops and leaving the glomerulus as efferent arteriole. Diameters of afferent and efferent arteriolar replicas were similar in all three kidney divisions of MT and RT nephrons. The absence of the interconnecting branches between the MT nephron capillaries at the gross inspection suggests that the mammalian-type nephron glomeruli, although more complex than the reptilian type, are not equivalent to those in mammalian kidneys.
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Affiliation(s)
- Nedžad Hadžiomerović
- Department of Anatomy and Histology with Embryology, Veterinary Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Rizah Avdić
- Department of Anatomy and Histology with Embryology, Veterinary Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Bernd Minnich
- Department of Biosciences, Vascular and Exercise Biology Research Group, University of Salzburg, Salzburg, Austria
| | - Katharina Erlbacher
- Department of Neuroanatomy, University of Freiburg, Freiburg im Breisgau, Germany
| | - Nadžida Mlaćo
- Department of Anatomy and Histology with Embryology, Veterinary Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Faruk Tandir
- Department of Anatomy and Histology with Embryology, Veterinary Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Pamela Bejdić
- Department of Anatomy and Histology with Embryology, Veterinary Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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Tangphokhanon W, Pradidarcheep W, Lametschwandtner A. α-mangostin preserves hepatic microvascular architecture in fibrotic rats as shown by scanning electron microscopy of vascular corrosion casts. Biomed Rep 2021; 14:48. [PMID: 33859819 PMCID: PMC8042669 DOI: 10.3892/br.2021.1424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/04/2021] [Indexed: 11/17/2022] Open
Abstract
Liver fibrosis is a dynamic condition caused by wound-healing in which scar tissue replaces the liver parenchyma following repetitive injuries. It is hypothesized that α-mangostin (AM), the major constituent of the xanthone fraction in extracts of Garcinia mangostana L., may protect the hepatic microvascular bed from thioacetamide (TAA)-induced fibrosis. In the present study, rats were divided into 4 groups: Control rats received no treatment; TAA-treated rats received 150 mg/kg TAA 3 times per week intraperitoneally; AM-treated rats received 75 mg/kg AM twice per week intraperitoneally; and TAA+AM-treated rats received both TAA and AM as described above. Rat livers were processed either for light microscopy or for vascular corrosion casting after 30 and 60 days of treatment. Vascular parameters were measured by 3D morphometry analysis of scanning electron micrographs. AM attenuated hepatocellular injuries and delayed both periportal and pericentral fibrosis in the TAA-treated rats. The comparison of findings at day 30 and 60 showed that TAA-induced fibrotic changes were progressive in time, and that the beneficial effects of AM only became apparent after prolonged treatment. The livers of rats treated with both TAA and AM had less space surrounding the portal vessels, improved preservation of the hepatic microvascular pattern, and minimally altered sinusoidal patterns with few signs of terminal portal venule remodeling. AM therefore partially protected the liver against hepatotoxin-induced fibrosis and the associated microvascular changes. The mechanism of the protective effect of AM on the liver remains to be investigated.
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Affiliation(s)
- Wasan Tangphokhanon
- Center of Excellence in Veterinary Biosciences, Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Wisuit Pradidarcheep
- Department of Anatomy, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Alois Lametschwandtner
- Department of Biosciences, Vascular and Exercise Biology Unit, University of Salzburg, Salzburg 5020, Austria
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Hosotani M, Ichii O, Nakamura T, Namba T, Islam MR, Elewa YHA, Watanabe T, Ueda H, Kon Y. Anatomy and histology of the foramen of ovarian bursa opening to the peritoneal cavity and its changes in autoimmune disease-prone mice. J Anat 2021; 238:73-85. [PMID: 32869289 PMCID: PMC7754971 DOI: 10.1111/joa.13299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 01/03/2023] Open
Abstract
The ovarian bursa is a small peritoneal cavity enclosed by the mesovarium and mesosalpinx, which surrounds the ovaries and oviductal infundibulum in mammals. The ovarian bursa is considered as the structure facilitating the transport of ovulated oocytes into the oviduct. Our previous study revealed reduced oocyte pick-up function in the oviduct of lupus-prone MRL/MpJ-Faslpr/lpr mouse, suggesting the possibility of an escape of ovulated oocytes into the peritoneal cavity, despite the presence of an almost complete ovarian bursa in the mouse. In this study, we revealed anatomical and histological characteristics of the ovarian bursa in C57BL/6 N, MRL/MpJ, and MRL/MpJ-Faslpr/lpr mice. All strains had the foramen of ovarian bursa (FOB), with a size of approximately 0.04 to 0.12 cm2 , surrounded by the ligament of ovarian bursa (LOB), which is part of the mesosalpinx. The LOB was partially lined with the cuboidal mesothelial cells and consisted of a thick smooth muscle layer in all strains. In 6-month-old MRL/MpJ-Faslpr/lpr mice, in which the systemic autoimmune abnormality deteriorated and oocyte pick-up function was impaired, the size of the FOB tended to be larger than that of other strains. Additionally, in MRL/MpJ-Faslpr/lpr mice at 6 months of age, there was infiltration by numerous immune cells in the mesosalpinx suspending the isthmus; however, the LOB prevented severe inflammation and showed deposition of collagen fibers. These results not only indicate that the FOB is a common structure within mice, but also imply the physiological function of the LOB and its role in maintaining the microenvironment around the ovary, as well as regulating healthy reproduction.
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Affiliation(s)
- Marina Hosotani
- Laboratory of Veterinary AnatomyDepartment of Veterinary MedicineSchool of Veterinary MedicineRakuno Gakuen UniversityEbetsuHokkaidoJapan
| | - Osamu Ichii
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- Laboratory of Agrobiomedical ScienceFaculty of AgricultureHokkaido UniversitySapporoHokkaidoJapan
| | - Teppei Nakamura
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- Section of Biological Safety ResearchChitose LaboratoryJapan Food Research LaboratoriesChitoseHokkaidoJapan
| | - Takashi Namba
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
| | - Md. Rashedul Islam
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
| | - Yaser Hosny Ali Elewa
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- Department of Histology and CytologyFaculty of Veterinary MedicineZagazig UniversityZagazigEgypt
| | - Takafumi Watanabe
- Laboratory of Veterinary AnatomyDepartment of Veterinary MedicineSchool of Veterinary MedicineRakuno Gakuen UniversityEbetsuHokkaidoJapan
| | - Hiromi Ueda
- Laboratory of Veterinary AnatomyDepartment of Veterinary MedicineSchool of Veterinary MedicineRakuno Gakuen UniversityEbetsuHokkaidoJapan
| | - Yasuhiro Kon
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
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7
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He X, Xu S, Hong L. 3D morphological analysis of Arabidopsis sepals. Methods Cell Biol 2020; 160:311-26. [PMID: 32896325 DOI: 10.1016/bs.mcb.2020.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
How complicated cell activities produce characteristic tissue and organ morphologies is an important question in plant morphogenesis. To address this question, 3D morphometry of plant organs on multiscales is indispensable. In recent years, advances in confocal microscopy with fluorescent probes that mark the cell wall or plasma membrane enable the visualization of organ morphology with submicron precision. In parallel, new quantitative and correlative imaging pipelines realize 3D image processing on 2D curved surface, facilitating the study of cell and tissue behaviors in plant organogenesis. Here, we describe methods for 3D morphometry of Arabidopsis sepals, focusing on live imaging coupled with MorphoGraphX-based 3D image processing for cellular growth analysis.
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Vincent AE, White K, Davey T, Philips J, Ogden RT, Lawless C, Warren C, Hall MG, Ng YS, Falkous G, Holden T, Deehan D, Taylor RW, Turnbull DM, Picard M. Quantitative 3D Mapping of the Human Skeletal Muscle Mitochondrial Network. Cell Rep 2019; 26:996-1009.e4. [PMID: 30655224 PMCID: PMC6513570 DOI: 10.1016/j.celrep.2019.01.010] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 10/11/2018] [Accepted: 01/02/2019] [Indexed: 01/07/2023] Open
Abstract
Genetic and biochemical defects of mitochondrial function are a major
cause of human disease, but their link to mitochondrial morphology in
situ has not been defined. Here, we develop a quantitative
three-dimensional approach to map mitochondrial network organization in human
muscle at electron microscopy resolution. We establish morphological differences
between human and mouse and among patients with mitochondrial DNA (mtDNA)
diseases compared to healthy controls. We also define the ultrastructure and
prevalence of mitochondrial nanotunnels, which exist as either free-ended or
connecting membrane protrusions across non-adjacent mitochondria. A multivariate
model integrating mitochondrial volume, morphological complexity, and branching
anisotropy computed across individual mitochondria and mitochondrial populations
identifies increased proportion of simple mitochondria and nanotunnels as a
discriminant signature of mitochondrial stress. Overall, these data define the
nature of the mitochondrial network in human muscle, quantify human-mouse
differences, and suggest potential morphological markers of mitochondrial
dysfunction in human tissues. Vincent et al. use 3D electron microscopy to provide a quantitative
morphometric assessment of human skeletal muscle mitochondria. They find that
healthy human muscle mitochondria differ from mouse mitochondria and show that
primary mtDNA defects are associated with a distinct morphological signature
including increased abundance of mitochondrial nanotunnels.
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Affiliation(s)
- Amy E Vincent
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; MRC Centre for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Kathryn White
- EM Research Services, Newcastle University, Newcastle upon Tyne, UK
| | - Tracey Davey
- EM Research Services, Newcastle University, Newcastle upon Tyne, UK
| | - Jonathan Philips
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - R Todd Ogden
- Institute of Child Health, University College London, London, UK
| | - Conor Lawless
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Charlotte Warren
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; MRC Centre for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Matt G Hall
- National Physical Laboratory, Teddington, UK; Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Yi Shiau Ng
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Gavin Falkous
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Thomas Holden
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - David Deehan
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Robert W Taylor
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Doug M Turnbull
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; MRC Centre for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK.
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, USA; Department of Neurology and Columbia Translational Neuroscience Initiative, H. Houston Merritt Center, Columbia University Irving Medical Center, New York, NY, USA; Columbia University Aging Center, Columbia University, New York, NY, USA.
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9
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Kruepunga N, Hikspoors JPJM, Mekonen HK, Mommen GMC, Meemon K, Weerachatyanukul W, Asuvapongpatana S, Eleonore Köhler S, Lamers WH. The development of the cloaca in the human embryo. J Anat 2018; 233:724-739. [PMID: 30294789 PMCID: PMC6231168 DOI: 10.1111/joa.12882] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/13/2018] [Indexed: 12/21/2022] Open
Abstract
Subdivision of cloaca into urogenital and anorectal passages has remained controversial because of disagreements about the identity and role of the septum developing between both passages. This study aimed to clarify the development of the cloaca using a quantitative 3D morphological approach in human embryos of 4–10 post‐fertilisation weeks. Embryos were visualised with Amira 3D‐reconstruction and Cinema 4D‐remodelling software. Distances between landmarks were computed with Amira3D software. Our main finding was a pronounced difference in growth between rapidly expanding central and ventral parts, and slowly or non‐growing cranial and dorsal parts. The entrance of the Wolffian duct into the cloaca proved a stable landmark that remained linked to the position of vertebra S3. Suppressed growth in the cranial cloaca resulted in an apparent craniodorsal migration of the entrance of the Wolffian duct, while suppressed growth in the dorsal cloaca changed the entrance of the hindgut from cranial to dorsal on the cloaca. Transformation of this ‘end‐to‐end’ into an ‘end‐to‐side’ junction produced temporary ‘lateral (Rathke's) folds’. The persistent difference in dorsoventral growth straightened the embryonic caudal body axis and concomitantly extended the frontally oriented ‘urorectal (Tourneux's) septum’ caudally between the ventral urogenital and dorsal anorectal parts of the cloaca. The dorsoventral growth difference also divided the cloacal membrane into a well‐developed ventral urethral plate and a thin dorsal cloacal membrane proper, which ruptured at 6.5 weeks. The expansion of the pericloacal mesenchyme followed the dorsoventral growth difference and produced the genital tubercle. Dysregulation of dorsal cloacal development is probably an important cause of anorectal malformations: too little regressive development may result in anorectal agenesis, and too much regression in stenosis or atresia of the remaining part of the dorsal cloaca.
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Affiliation(s)
- Nutmethee Kruepunga
- Department of Anatomy & Embryology, Maastricht University, Maastricht, The Netherlands.,Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Jill P J M Hikspoors
- Department of Anatomy & Embryology, Maastricht University, Maastricht, The Netherlands
| | - Hayelom K Mekonen
- Department of Anatomy & Embryology, Maastricht University, Maastricht, The Netherlands
| | - Greet M C Mommen
- Department of Anatomy & Embryology, Maastricht University, Maastricht, The Netherlands
| | - Krai Meemon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | | | | | - S Eleonore Köhler
- Department of Anatomy & Embryology, Maastricht University, Maastricht, The Netherlands
| | - Wouter H Lamers
- Department of Anatomy & Embryology, Maastricht University, Maastricht, The Netherlands.,Tytgat Institute for Liver and Intestinal Research, Academic Medical Center, Amsterdam, The Netherlands
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10
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She X, Wei F, Damon BJ, Coombs MC, Lee DG, Lecholop MK, Bacro TH, Steed MB, Zheng N, Chen X, Yao H. Three-dimensional temporomandibular joint muscle attachment morphometry and its impacts on musculoskeletal modeling. J Biomech 2018; 79:119-128. [PMID: 30166225 DOI: 10.1016/j.jbiomech.2018.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/26/2018] [Accepted: 08/10/2018] [Indexed: 01/03/2023]
Abstract
In musculoskeletal models of the human temporomandibular joint (TMJ), muscles are typically represented by force vectors that connect approximate muscle origin and insertion centroids (centroid-to-centroid force vectors). This simplification assumes equivalent moment arms and muscle lengths for all fibers within a muscle even with complex geometry and may result in inaccurate estimations of muscle force and joint loading. The objectives of this study were to quantify the three-dimensional (3D) human TMJ muscle attachment morphometry and examine its impact on TMJ mechanics. 3D muscle attachment surfaces of temporalis, masseter, lateral pterygoid, and medial pterygoid muscles of human cadaveric heads were generated by co-registering measured attachment boundaries with underlying skull models created from cone-beam computerized tomography (CBCT) images. A bounding box technique was used to quantify 3D muscle attachment size, shape, location, and orientation. Musculoskeletal models of the mandible were then developed and validated to assess the impact of 3D muscle attachment morphometry on joint loading during jaw maximal open-close. The 3D morphometry revealed that muscle lengths and moment arms of temporalis and masseter muscles varied substantially among muscle fibers. The values calculated from the centroid-to-centroid model were significantly different from those calculated using the 'Distributed model', which considered crucial 3D muscle attachment morphometry. Consequently, joint loading was underestimated by more than 50% in the centroid-to-centroid model. Therefore, it is necessary to consider 3D muscle attachment morphometry, especially for muscles with broad attachments, in TMJ musculoskeletal models to precisely quantify the joint mechanical environment critical for understanding TMJ function and mechanobiology.
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Affiliation(s)
- Xin She
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - Feng Wei
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - Brooke J Damon
- Department of Bioengineering, Clemson University, Clemson, SC, USA; Department of Oral Health Sciences, Medical University of South Carolina (MUSC), Charleston, SC, USA
| | - Matthew C Coombs
- Department of Bioengineering, Clemson University, Clemson, SC, USA; Department of Oral Health Sciences, Medical University of South Carolina (MUSC), Charleston, SC, USA
| | - Daniel G Lee
- Department of Oral and Maxillofacial Surgery, MUSC, Charleston, SC, USA
| | | | - Thierry H Bacro
- Center for Anatomical Studies and Education, MUSC, Charleston, SC, USA
| | - Martin B Steed
- Department of Oral and Maxillofacial Surgery, MUSC, Charleston, SC, USA
| | - Naiquan Zheng
- Department of Mechanical Engineering and Center for Biomedical Engineering and Science, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - Xiaojing Chen
- Xiangya School of Stomatology, Central South University, Changsha, China
| | - Hai Yao
- Department of Bioengineering, Clemson University, Clemson, SC, USA; Department of Oral Health Sciences, Medical University of South Carolina (MUSC), Charleston, SC, USA.
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11
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Plescher M, Seifert G, Hansen JN, Bedner P, Steinhäuser C, Halle A. Plaque-dependent morphological and electrophysiological heterogeneity of microglia in an Alzheimer's disease mouse model. Glia 2018; 66:1464-1480. [PMID: 29493017 DOI: 10.1002/glia.23318] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 01/17/2018] [Accepted: 02/12/2018] [Indexed: 12/18/2022]
Abstract
Microglia, the central nervous system resident innate immune cells, cluster around Aβ plaques in Alzheimer's disease (AD). The activation phenotype of these plaque-associated microglial cells, and their differences to microglia distant to Aβ plaques, are incompletely understood. We used novel three-dimensional cell analysis software to comprehensively analyze the morphological properties of microglia in the TgCRND8 mouse model of AD in spatial relation to Aβ plaques. We found strong morphological changes exclusively in plaque-associated microglia, whereas plaque-distant microglia showed only minor changes. In addition, patch-clamp recordings of microglia in acute cerebral slices of TgCRND8 mice revealed increased K+ currents in plaque-associated but not plaque-distant microglia. Within the subgroup of plaque-associated microglia, two different current profiles were detected. One subset of cells displayed only increased inward currents, while a second subset showed both increased inward and outward currents, implicating that the plaque microenvironment differentially impacts microglial ion channel expression. Using pharmacological channel blockers, multiplex single-cell PCR analysis and RNA fluorescence in situ hybridization, we identified Kir and Kv channel types contributing to the in- and outward K+ conductance in plaque-associated microglia. In summary, we have identified a previously unrecognized level of morphological and electrophysiological heterogeneity of microglia in relation to amyloid plaques, suggesting that microglia may display multiple activation states in AD.
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Affiliation(s)
- Monika Plescher
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany.,Center of Advanced European Studies and Research, Bonn, Germany.,Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Gerald Seifert
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Jan Niklas Hansen
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany.,Center of Advanced European Studies and Research, Bonn, Germany
| | - Peter Bedner
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Christian Steinhäuser
- Institute of Cellular Neurosciences, Medical Faculty, University of Bonn, Bonn, Germany
| | - Annett Halle
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany.,Center of Advanced European Studies and Research, Bonn, Germany
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12
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Zurada A, Gielecki J, Tubbs RS, Loukas M, Cohen-Gadol AA, Chlebiej M, Maksymowicz W, Nowak D, Zawiliński J, Michalak M. Three-dimensional morphometry of the A2 segment of the anterior cerebral artery with neurosurgical relevance. Clin Anat 2010; 23:759-69. [PMID: 20803572 DOI: 10.1002/ca.21036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 06/24/2010] [Accepted: 07/08/2010] [Indexed: 11/12/2022]
Abstract
Most prior morphometry data regarding the A2 segment of the anterior cerebral artery (ACA) have been based on cadaveric measurements. With newer imaging modalities, surgical techniques, and minimally invasive procedures, new standards for the anatomy of this vessel are necessary. A novel computer-based data system was used to analyze the three-dimensional (3D) morphometry of 230 A2 segments. In addition, tortuosity (TI) and deviation indices (DI) for this segment were calculated. The mean internal diameter of the A2 segment was 1.86 mm, and segments tended to be larger in men and on left sides. A2 segments were asymmetrical in 43%, and this was more common in women. Lengths tended to be greater on right sides and in men. Volumes were greater in men and increased with age, which was statistically significant. These gender differences were found to be statistically significant (P < 0.05), for both volume and diameter. TI was equal among sides, but DI was more often greater on right sides. The correlation coefficient ratio for length and DI was statistically significant. It is important to understand various 3D morphometrical differences particularly between genders. By constructing blood flow simulation models and during revascularization procedures, surgeons are able to gain a better understanding of each patient's vascular anatomy. These additional 3D data regarding the anatomy of the postcommunicating parts of the ACA may be useful to the neurosurgeon and interventional neuroradiologist. These data may assist with an earlier diagnosis of pathologies affecting the 3D morphology of the ACA.
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Affiliation(s)
- Anna Zurada
- Department of Anatomy, Medical Faculty, University of Varmia and Masuria in Olsztyn, Poland.
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