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Ding Q, Liu W, Zhang S, Sun S, Yang J, Zhang L, Wang N, Ma S, Chai G, Shen L, Gao Y, Ding C, Liu X. Hydrogel loaded with thiolated chitosan modified taxifolin liposome promotes osteoblast proliferation and regulates Wnt signaling pathway to repair rat skull defects. Carbohydr Polym 2024; 336:122115. [PMID: 38670750 DOI: 10.1016/j.carbpol.2024.122115] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/26/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024]
Abstract
To alleviate skull defects and enhance the biological activity of taxifolin, this study utilized the thin-film dispersion method to prepare paclitaxel liposomes (TL). Thiolated chitosan (CSSH)-modified TL (CTL) was synthesized through charge interactions. Injectable hydrogels (BLG) were then prepared as hydrogel scaffolds loaded with TAX (TG), TL (TLG), and CTL (CTLG) using a Schiff base reaction involving oxidized dextran and carboxymethyl chitosan. The study investigated the bone reparative properties of CTLG through molecular docking, western blot techniques, and transcriptome analysis. The particle sizes of CTL were measured at 248.90 ± 14.03 nm, respectively, with zeta potentials of +36.68 ± 5.43 mV, respectively. CTLG showed excellent antioxidant capacity in vitro. It also has a good inhibitory effect on Escherichia coli and Staphylococcus aureus, with inhibition rates of 93.88 ± 1.59 % and 88.56 ± 2.83 % respectively. The results of 5-ethynyl-2 '-deoxyuridine staining, alkaline phosphatase staining and alizarin red staining showed that CTLG also had the potential to promote the proliferation and differentiation of mouse embryonic osteoblasts (MC3T3-E1). The study revealed that CTLG enhances the expression of osteogenic proteins by regulating the Wnt signaling pathway, shedding light on the potential application of TAX and bone regeneration mechanisms.
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Affiliation(s)
- Qiteng Ding
- Jilin Agricultural University, Changchun 130118, China
| | - Wencong Liu
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543002, China
| | - Shuai Zhang
- Jilin Agricultural University, Changchun 130118, China
| | - Shuwen Sun
- Jilin Agricultural University, Changchun 130118, China
| | - Jiali Yang
- Jilin Agricultural University, Changchun 130118, China
| | - Lifeng Zhang
- Jilin Agricultural University, Changchun 130118, China
| | - Ning Wang
- Jilin Agricultural University, Changchun 130118, China
| | - Shuang Ma
- Jilin Agricultural University, Changchun 130118, China
| | - Guodong Chai
- Jilin Agricultural University, Changchun 130118, China
| | - Liqian Shen
- Jilin Jianwei Natural Biotechnology Co., Ltd., Linjiang 134600, China
| | - Yang Gao
- Jilin Jianwei Natural Biotechnology Co., Ltd., Linjiang 134600, China
| | - Chuanbo Ding
- Jilin Agricultural University, Changchun 130118, China; College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China; Jilin Aodong Yanbian Pharmaceutical Co., Ltd, Yanbian Korean Autonomous Prefecture 133000, China.
| | - Xinglong Liu
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China.
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Willman JC, Coutinho Nogueira D, Silva AM. Reassessing trauma in a Late Neolithic cranium from Megalitho da Capella (Figueira da Foz, Portugal). Anthropol Anz 2024; 81:341-349. [PMID: 38317614 DOI: 10.1127/anthranz/2024/1771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/14/2023] [Accepted: 11/28/2023] [Indexed: 02/07/2024]
Abstract
The Megalitho da Capella (Figueira da Foz, Coimbra, Portugal) is one of at least 21 dolmens in a megalithic complex explored by António dos Santos Rocha between 1880 and 1909. Among the human remains from Megalitho da Capella is an incomplete and fragmented cranium. Santos Rocha interpreted a groove on the parietal bone as an incision of traumatic origin with signs of remodeling that was suggestive of prolonged survival after an intentional intervention. This study provides a new examination of the groove using microcomputed tomographic (microCT) imaging, microscopy, and macroscopic observations of the groove in addition to the direct dating the skeletal remains. Results indicate that the human remains are dated to the Late Neolithic and that the "incision" is a normal anatomical variant corresponding to impressions from vascular tissue and temporal projections of the squamosal. We conclude that studies of bone surface modifications should consider normal anatomical variants (e.g., sulci, grooves, and furrows) when reporting results. Paleoimaging, microscopy, and comparative observations can assist in the identification bone modifications versus anatomical variants.
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Affiliation(s)
- John Charles Willman
- CIAS - Research Centre for Anthropology and Health, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Dany Coutinho Nogueira
- CIAS - Research Centre for Anthropology and Health, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Ana Maria Silva
- CIAS - Research Centre for Anthropology and Health, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
- UNIARQ, Centro de Arqueologia da Universidade de Lisboa, Faculdade de Letras da Universidade de Lisboa,1600-214 Lisboa Portugal
- Centre for Functional Ecology (CEF), Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
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Edwards MR, Garcia Mora JK, Fowler KM, Vezza C, Robertson JL, Daniel GB, Shinn RL, Parker RL, Werre SR, Rossmeisl JH. Magnetic resonance and computed tomographic imaging characteristics and potential molecular mechanisms of feline meningioma associated calvarial hyperostosis. Vet Comp Oncol 2024; 22:174-185. [PMID: 38332673 DOI: 10.1111/vco.12964] [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: 09/27/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
Meningiomas are the most common feline primary brain tumours, and calvarial hyperostosis (CH) is frequently documented in association with this neoplastic entity. The clinical significance of and mechanisms driving the formation of CH in cats with meningiomas are poorly understood, although tumour invasion into the skull and tumour production of cytokines and enzymes have been implicated as causes of CH in humans. This retrospective study investigated relationships between signalment, MRI or CT imaging features, histopathologic tumour characteristics, alkaline phosphatase (ALP) isoenzyme concentrations, tumour expression of matrix metalloproteinases (MMP)-2, MMP-9, and interleukin-6 (IL-6), and progression free survival times (PFS) following surgical treatment in 27 cats with meningiomas with (n = 15) or without (n = 12) evidence of CH. No significant differences in breed, age, sex, body weight, tumour grade, tumour volume, peritumoral edema burden, ALP isoenzyme concentrations, tumour Ki-67 labelling indices or MMP-2 or MMP-9 expression and activity, or PFS were noted between cats with or without CH. There was a trend towards higher serum (p = .06) and intratumoral (p = .07) concentrations of IL-6 in cats with CH, but these comparisons were not statistically significant. Histologic evidence of tumour invasion into bone was observed in 5/12 (42%) with CH and in no (0/6) cats without CH, although this was not statistically significant (p = .07). Tumour invasion into bone and tumour production of IL-6 may contribute to the formation of meningioma associated CH in cats, although larger studies are required to further substantiate these findings and determine their clinical relevance.
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Affiliation(s)
- Michael R Edwards
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - Josefa K Garcia Mora
- Veterinary and Comparative Neuro-oncology Laboratory, Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - Kayla M Fowler
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - Christina Vezza
- Veterinary and Comparative Neuro-oncology Laboratory, Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - John L Robertson
- Veterinary and Comparative Neuro-oncology Laboratory, Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - Gregory B Daniel
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - Richard L Shinn
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
- Veterinary and Comparative Neuro-oncology Laboratory, Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - Rell L Parker
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - Stephen R Werre
- Laboratory for Study Design and Statistical Analysis, Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, Virginia, USA
| | - John H Rossmeisl
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
- Veterinary and Comparative Neuro-oncology Laboratory, Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA
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Fendi F, Abdullah B, Suryani S, Usman AN, Tahir D. Development and application of hydroxyapatite-based scaffolds for bone tissue regeneration: A systematic literature review. Bone 2024; 183:117075. [PMID: 38508371 DOI: 10.1016/j.bone.2024.117075] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/22/2024]
Abstract
Hydroxyapatite [HA, Ca10(PO4)6(OH)2], with its robust biocompatibility and bioactivity, has found extensive utility in bone grafting, replacement therapies, and supplemental medical materials. HA is highly regarded for its osteoconductive properties because it boasts hydrophilicity, nontoxicity, non-allergenicity, and non-mutagenicity. Nevertheless, HA's intrinsic mechanical weakness has spurred efforts to enhance its properties. This enhancement is achieved through ion incorporation, with elements such as magnesium, zinc, lithium, strontium, boron, and others being integrated into the HA structure. In the domain of orthopedics, HA-based scaffolds have emerged as a solution for addressing prevalent issues like bone deformities and defects stemming from congenital anomalies, injuries, trauma, infections, or tumors. The fabrication of three-dimensional scaffolds (3D scaffolds) has enabled advancements in bone regeneration and replacement, with a focus on practical applications such as repairing calvarial, skull, and femoral defects. In vitro and in vivo assessments have substantiated the effectiveness of 3D scaffolds for bone defect repair, regeneration, and tissue engineering. Beyond bone-related applications, scaffolds demonstrate versatility in enhancing cartilage healing and serving as bioimplants. The wide array of scaffold applications underscores their ongoing potential for further development in the realm of medical science.
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Affiliation(s)
- Fendi Fendi
- Department of Physics, Hasanuddin University, Makassar 90245, Indonesia
| | - Bualkar Abdullah
- Department of Physics, Hasanuddin University, Makassar 90245, Indonesia
| | - Sri Suryani
- Department of Physics, Hasanuddin University, Makassar 90245, Indonesia
| | | | - Dahlang Tahir
- Department of Physics, Hasanuddin University, Makassar 90245, Indonesia.
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Bloch K, Geoffroy M, Taverne M, van de Lande L, O'Sullivan E, Liang C, Paternoster G, Moazen M, Laporte S, Khonsari RH. New diagnostic criteria for metopic ridges and trigonocephaly: a 3D geometric approach. Orphanet J Rare Dis 2024; 19:204. [PMID: 38762603 PMCID: PMC11102612 DOI: 10.1186/s13023-024-03197-8] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 04/29/2024] [Indexed: 05/20/2024] Open
Abstract
BACKGROUND Trigonocephaly occurs due to the premature fusion of the metopic suture, leading to a triangular forehead and hypotelorism. This condition often requires surgical correction for morphological and functional indications. Metopic ridges also originate from premature metopic closure but are only associated with mid-frontal bulging; their surgical correction is rarely required. Differential diagnosis between these two conditions can be challenging, especially in minor trigonocephaly. METHODS Two hundred seven scans of patients with trigonocephaly (90), metopic rigdes (27), and controls (90) were collected. Geometric morphometrics were used to quantify skull and orbital morphology as well as the interfrontal angle and the cephalic index. An innovative method was developed to automatically compute the frontal curvature along the metopic suture. Different machine-learning algorithms were tested to assess the predictive power of morphological data in terms of classification. RESULTS We showed that control patients, trigonocephaly and metopic rigdes have distinctive skull and orbital shapes. The 3D frontal curvature enabled a clear discrimination between groups (sensitivity and specificity > 92%). Furthermore, we reached an accuracy of 100% in group discrimination when combining 6 univariate measures. CONCLUSION Two diagnostic tools were proposed and demonstrated to be successful in assisting differential diagnosis for patients with trigonocephaly or metopic ridges. Further clinical assessments are required to validate the practical clinical relevance of these tools.
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Affiliation(s)
- Kevin Bloch
- Service de chirurgie maxillofaciale et chirurgie plastique, Hôpital Necker - Enfants malades, Assistance Publique - Hôpitaux de Paris, CRMR CRANIOST, Faculté de Médecine, Université Paris Cité, Paris, France
- Institut de Biomécanique Humaine Georges Charpak, Arts et Métiers Institute of Technology, Paris, France
| | - Maya Geoffroy
- Institut de Biomécanique Humaine Georges Charpak, Arts et Métiers Institute of Technology, Paris, France
- Laboratoire 'Forme et Croissance du Crâne', Hôpital Necker - Enfants malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Maxime Taverne
- Laboratoire 'Forme et Croissance du Crâne', Hôpital Necker - Enfants malades, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Lara van de Lande
- Craniofacial Unit, Great Ormond Street Hospital for Children; UCL Great Ormond Street Institute of Child Health, London, UK
- Department of Oral and Maxillofacial Surgery, Erasmus Medical Centre, Rotterdam, the Netherlands
| | | | - Ce Liang
- Department of Mechanical Engineering, University College London, London, UK
| | - Giovanna Paternoster
- Service de Neurochirurgie, Hôpital Necker - Enfants malades, Assistance Publique - Hôpitaux de Paris, CRMR CRANIOST, Paris, France
| | - Mehran Moazen
- Department of Mechanical Engineering, University College London, London, UK
| | - Sébastien Laporte
- Institut de Biomécanique Humaine Georges Charpak, Arts et Métiers Institute of Technology, Paris, France
| | - Roman Hossein Khonsari
- Service de chirurgie maxillofaciale et chirurgie plastique, Hôpital Necker - Enfants malades, Assistance Publique - Hôpitaux de Paris, CRMR CRANIOST, Faculté de Médecine, Université Paris Cité, Paris, France.
- Institut de Biomécanique Humaine Georges Charpak, Arts et Métiers Institute of Technology, Paris, France.
- Laboratoire 'Forme et Croissance du Crâne', Hôpital Necker - Enfants malades, Assistance Publique - Hôpitaux de Paris, Paris, France.
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Chen K, Ha S, Xu L, Liu C, Liu Y, Wu X, Li Z, Wu S, Yang B, Chen Z. Fluorinated hydroxyapatite conditions a favorable osteo-immune microenvironment via triggering metabolic shift from glycolysis to oxidative phosphorylation. J Transl Med 2024; 22:437. [PMID: 38720345 PMCID: PMC11077739 DOI: 10.1186/s12967-024-05261-0] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Biological-derived hydroxyapatite is widely used as a bone substitute for addressing bone defects, but its limited osteoconductive properties necessitate further improvement. The osteo-immunomodulatory properties hold crucial promise in maintaining bone homeostasis, and precise modulation of macrophage polarization is essential in this process. Metabolism serves as a guiding force for immunity, and fluoride modification represents a promising strategy for modulating the osteoimmunological environment by regulating immunometabolism. In this context, we synthesized fluorinated porcine hydroxyapatite (FPHA), and has demonstrated its enhanced biological properties and osteogenic capacity. However, it remains unknown whether and how FPHA affects the immune microenvironment of the bone defects. METHODS FPHA was synthesized and its composition and structural properties were confirmed. Macrophages were cultured with FPHA extract to investigate the effects of FPHA on their polarization and the related osteo-immune microenvironment. Furthermore, total RNA of these macrophages was extracted, and RNA-seq analysis was performed to explore the underlying mechanisms associated with the observed changes in macrophages. The metabolic states were evaluated with a Seahorse analyzer. Additionally, immunohistochemical staining was performed to evaluate the macrophages response after implantation of the novel bone substitutes in critical size calvarial defects in SD rats. RESULTS The incorporation of fluoride ions in FPHA was validated. FPHA promoted macrophage proliferation and enhanced the expression of M2 markers while suppressing the expression of M1 markers. Additionally, FPHA inhibited the expression of inflammatory factors and upregulated the expression of osteogenic factors, thereby enhancing the osteogenic differentiation capacity of the rBMSCs. RNA-seq analysis suggested that the polarization-regulating function of FPHA may be related to changes in cellular metabolism. Further experiments confirmed that FPHA enhanced mitochondrial function and promoted the metabolic shift of macrophages from glycolysis to oxidative phosphorylation. Moreover, in vivo experiments validated the above results in the calvarial defect model in SD rats. CONCLUSION In summary, our study reveals that FPHA induces a metabolic shift in macrophages from glycolysis to oxidative phosphorylation. This shift leads to an increased tendency toward M2 polarization in macrophages, consequently creating a favorable osteo-immune microenvironment. These findings provide valuable insights into the impact of incorporating an appropriate concentration of fluoride on immunometabolism and macrophage mitochondrial function, which have important implications for the development of fluoride-modified immunometabolism-based bone regenerative biomaterials and the clinical application of FPHA or other fluoride-containing materials.
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Affiliation(s)
- Kaidi Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Seongmin Ha
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Leyao Xu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Chengwu Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yuanxiang Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiayi Wu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Zhipeng Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Shiyu Wu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.
| | - Bo Yang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.
| | - Zhuofan Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.
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Liu Y, Mao H, Chen S, Wang J, Ouyang W. Modified Mouse Model of Repetitive Mild Traumatic Brain Injury Incorporating Thinned-Skull Window and Fluid Percussion. J Vis Exp 2024. [PMID: 38709029 DOI: 10.3791/66440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024] Open
Abstract
Mild traumatic brain injury is a clinically highly heterogeneous neurological disorder. Highly reproducible traumatic brain injury (TBI) animal models with well-defined pathologies are urgently needed for studying the mechanisms of neuropathology after mild TBI and testing therapeutics. Replicating the entire sequelae of TBI in animal models has proven to be a challenge. Therefore, the availability of multiple animal models of TBI is necessary to account for the diverse aspects and severities seen in TBI patients. CHI is one of the most common methods for fabricating rodent models of rmTBI. However, this method is susceptible to many factors, including the impact method used, the thickness and shape of the skull bone, animal apnea, and the type of head support and immobilization utilized. The aim of this protocol is to demonstrate a combination of the thinned-skull window and fluid percussion injury (FPI) methods to produce a precise mouse model of CHI-associated rmTBI. The primary objective of this protocol is to minimize factors that could impact the accuracy and consistency of CHI and FPI modeling, including skull bone thickness, shape, and head support. By utilizing a thinned-skull window method, potential inflammation due to craniotomy and FPI is minimized, resulting in an improved mouse model that replicates the clinical features observed in patients with mild TBI. Results from behavior and histological analysis using hematoxylin and eosin (HE) staining suggest that rmTBI can lead to a cumulative injury that produces changes in both behavior and gross morphology of the brain. Overall, the modified CHI-associated rmTBI presents a useful tool for researchers to explore the underlying mechanisms that contribute to focal and diffuse pathophysiological changes in rmTBI.
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Affiliation(s)
- Yunchen Liu
- College of Physical Education and Health Sciences, Zhejiang Normal University
| | - Haojie Mao
- College of Physical Education and Health Sciences, Zhejiang Normal University
| | - Shiqiang Chen
- College of Physical Education and Health Sciences, Zhejiang Normal University
| | - Jihui Wang
- College of Physical Education and Health Sciences, Zhejiang Normal University
| | - Wei Ouyang
- College of Physical Education and Health Sciences, Zhejiang Normal University;
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Bradfield C, Voo L, Drewry D, Koliatsos V, Ramesh KT. Dynamic strain fields of the mouse brain during rotation. Biomech Model Mechanobiol 2024; 23:397-412. [PMID: 37891395 DOI: 10.1007/s10237-023-01781-8] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023]
Abstract
Mouse models are used to better understand brain injury mechanisms in humans, yet there is a limited understanding of biomechanical relevance, beginning with how the murine brain deforms when the head undergoes rapid rotation from blunt impact. This problem makes it difficult to translate some aspects of diffuse axonal injury from mouse to human. To address this gap, we present the two-dimensional strain field of the mouse brain undergoing dynamic rotation in the sagittal plane. Using a high-speed camera with digital image correlation measurements of the exposed mid-sagittal brain surface, we found that pure rotations (no direct impact to the skull) of 100-200 rad/s are capable of producing complex strain fields that evolve over time with respect to rotational acceleration and deceleration. At the highest rotational velocity tested, the largest tensile strains (≥ 21% elongation) in selected regions of the mouse brain approach strain thresholds previously associated with axonal injury in prior work. These findings provide a benchmark to validate the mechanical response in biomechanical computational models predicting diffuse axonal injury, but much work remains in correlating tissue deformation patterns from computational models with underlying neuropathology.
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Affiliation(s)
- Connor Bradfield
- Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA.
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.
| | - Liming Voo
- Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - David Drewry
- Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA
| | - Vassilis Koliatsos
- Division of Neuropathology, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - K T Ramesh
- Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
- Hopkins Extreme Materials Institute, Johns Hopkins University, 3400 N Charles St, Baltimore, MD, 21218, USA
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9
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Wu Q, Zhang J, Kumar S, Shen S, Kincaid M, Johnson CB, Zhang YS, Turcotte R, Alt C, Ito K, Homan S, Sherman BE, Shao TY, Slaughter A, Weinhaus B, Song B, Filippi MD, Grimes HL, Lin CP, Ito K, Way SS, Kofron JM, Lucas D. Resilient anatomy and local plasticity of naive and stress haematopoiesis. Nature 2024; 627:839-846. [PMID: 38509363 PMCID: PMC10972750 DOI: 10.1038/s41586-024-07186-6] [Citation(s) in RCA: 1] [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: 05/26/2022] [Accepted: 02/09/2024] [Indexed: 03/22/2024]
Abstract
The bone marrow adjusts blood cell production to meet physiological demands in response to insults. The spatial organization of normal and stress responses are unknown owing to the lack of methods to visualize most steps of blood production. Here we develop strategies to image multipotent haematopoiesis, erythropoiesis and lymphopoiesis in mice. We combine these with imaging of myelopoiesis1 to define the anatomy of normal and stress haematopoiesis. In the steady state, across the skeleton, single stem cells and multipotent progenitors distribute through the marrow enriched near megakaryocytes. Lineage-committed progenitors are recruited to blood vessels, where they contribute to lineage-specific microanatomical structures composed of progenitors and immature cells, which function as the production sites for each major blood lineage. This overall anatomy is resilient to insults, as it was maintained after haemorrhage, systemic bacterial infection and granulocyte colony-stimulating factor (G-CSF) treatment, and during ageing. Production sites enable haematopoietic plasticity as they differentially and selectively modulate their numbers and output in response to insults. We found that stress responses are variable across the skeleton: the tibia and the sternum respond in opposite ways to G-CSF, and the skull does not increase erythropoiesis after haemorrhage. Our studies enable in situ analyses of haematopoiesis, define the anatomy of normal and stress responses, identify discrete microanatomical production sites that confer plasticity to haematopoiesis, and uncover unprecedented heterogeneity of stress responses across the skeleton.
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Affiliation(s)
- Qingqing Wu
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Department of Hematology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Jizhou Zhang
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Hematology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Sumit Kumar
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Siyu Shen
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Morgan Kincaid
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Courtney B Johnson
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Yanan Sophia Zhang
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Raphaël Turcotte
- Center for Systems Biology and Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Ruth L. and David S. Gottesman Institute for Stem Cell, Regenerative Medicine Research, Department of Cell Biology and Stem Cell Institute, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Clemens Alt
- Center for Systems Biology and Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kyoko Ito
- Ruth L. and David S. Gottesman Institute for Stem Cell, Regenerative Medicine Research, Department of Cell Biology and Stem Cell Institute, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Shelli Homan
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Bryan E Sherman
- Division of Infectious Diseases, Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Tzu-Yu Shao
- Division of Infectious Diseases, Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Anastasiya Slaughter
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Benjamin Weinhaus
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Baobao Song
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology and Center for Systems Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Marie Dominique Filippi
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - H Leighton Grimes
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Division of Immunobiology and Center for Systems Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Charles P Lin
- Advanced Microscopy Program, Center for Systems Biology and Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Keisuke Ito
- Ruth L. and David S. Gottesman Institute for Stem Cell, Regenerative Medicine Research, Department of Cell Biology and Stem Cell Institute, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Sing Sing Way
- Division of Infectious Diseases, Center for Inflammation and Tolerance, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - J Matthew Kofron
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Daniel Lucas
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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10
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Su L, Richard SA, Lan Z. Localized Congenital Cutis Verticis Gyrate with Skull Erosion. World Neurosurg 2024; 183:3-4. [PMID: 38070739 DOI: 10.1016/j.wneu.2023.12.009] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 12/03/2023] [Indexed: 01/05/2024]
Abstract
Localized congenital cutis verticis gyrate (CVG) is rare and potentially risks skull involvement. A 23-year-old woman presented with a congenital scalp mass in the occipital region. Local thickening of her left occipital scalp with ridges and furrows was observed on examination. Head computed tomography scan showed a lytic area underneath the same area of the occipital calvarium. The mass was surgically removed due to the skull erosion and cosmetic reasons. Pathologic evaluation established CVG. Surgical excision is best for localized congenital CVG with skull erosion due to cosmetic reasons. Surgical excision was rewarding to the patient it allowed her to style her hair.
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Affiliation(s)
- Lan Su
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China; Cheng Du Shang Jin Nan Fu Hospital, Chengdu, P. R. China.
| | - Seidu A Richard
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China; Institute of Neuroscience, Third Afliated Hospital, Zhengzhou University, Zhengzhou, P. R. China
| | - Zhigang Lan
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, P. R. China.
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11
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Stanton E, Feng J, Kondra K, Sanchez J, Jimenez C, Brown KS, Skiles ML, Urata MM, Chai Y, Hammoudeh JA. A Calvarial Defect Model to Investigate the Osteogenic Potential of Umbilical Cord Stem Cells in Bone Regeneration. Plast Reconstr Surg 2024; 153:637-646. [PMID: 37224290 DOI: 10.1097/prs.0000000000010754] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND The standard graft material for alveolar cleft repair (ACR) is autogenous iliac crest. A promising alternative potential graft adjunct-newborn human umbilical cord mesenchymal stem cells (h-UCMSCs)-has yet to be explored in vivo. Their capacity for self-renewal, multipotent differentiation, and proliferation allows h-UCMSCs to be harnessed for regenerative medicine. This study sought to evaluate the efficacy of using tissue-derived h-UCMSCs and their osteogenic capabilities to improve ACR in a murine model. METHODS Foxn1 mice were separated into three groups with the following calvarial defects: no treatment (empty defect; n = 6), poly(D,L-lactide-co-glycolide) (PLGA) scaffold ( n = 6), or h-UCMSCs with PLGA ( n = 4). Bilateral 2-mm-diameter parietal bone critical-sized defects were created using a dental drill. Microcomputed tomography (microCT) imaging was performed 1, 2, 3, and 4 weeks postoperatively. The mice were euthanized 4 weeks postoperatively for RNAScope, immunohistochemical, and histological analysis. RESULTS No mice experienced complications during the follow-up period. MicroCT imaging and histological analysis demonstrated that the no-treatment and PLGA-only defects remained patent without significant defect size differences across groups. In contrast, the h-UCMSCs with PLGA group had significantly greater bone fill on microCT and histological analysis. CONCLUSIONS This study demonstrates a successful calvarial defect model for the investigation of h-UCMSC-mediated osteogenesis and bone repair. Evidence reveals that PLGA alone has neither short-term effects on bone formation nor any unwanted side effects, making it an attractive scaffold. Further investigation using h-UCMSCs with PLGA in larger animals is warranted to advance future translation to patients requiring ACR. CLINICAL RELEVANCE STATEMENT The authors' results demonstrate a successful murine calvarial defect model for the investigation of h-UCMSC-mediated osteogenesis and bone repair, and they provide preliminary evidence for the safe and efficacious use of this graft adjunct in alveolar cleft repair.
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Affiliation(s)
- Eloise Stanton
- From the Center for Craniofacial Molecular Biology
- Keck School of Medicine
- Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles
| | - Jifan Feng
- From the Center for Craniofacial Molecular Biology
| | - Katelyn Kondra
- Keck School of Medicine
- Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles
| | | | - Christian Jimenez
- Keck School of Medicine
- Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles
| | - Katherine S Brown
- Research and Development, CBR Systems, Inc., a CooperSurgical Company
| | - Matthew L Skiles
- Research and Development, CBR Systems, Inc., a CooperSurgical Company
| | - Mark M Urata
- From the Center for Craniofacial Molecular Biology
- Keck School of Medicine
- Ostrow School of Dentistry, University of Southern California
- Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles
| | - Yang Chai
- From the Center for Craniofacial Molecular Biology
- Ostrow School of Dentistry, University of Southern California
| | - Jeffrey A Hammoudeh
- Keck School of Medicine
- Ostrow School of Dentistry, University of Southern California
- Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles
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12
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Ichikawa S, Yokoyama H, Fukuhara N, Ichinohasama R, Harigae H. Diffuse large B-cell lymphoma of the skull vault. Int J Hematol 2024; 119:215-216. [PMID: 38289575 DOI: 10.1007/s12185-024-03717-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 03/08/2024]
Affiliation(s)
- Satoshi Ichikawa
- Department of Hematology, Tohoku University Hospital, 1-1 Seiryo-cho, Sendai, 980-8574, Japan.
| | - Hisayuki Yokoyama
- Department of Hematology, Tohoku University Hospital, 1-1 Seiryo-cho, Sendai, 980-8574, Japan
| | - Noriko Fukuhara
- Department of Hematology, Tohoku University Hospital, 1-1 Seiryo-cho, Sendai, 980-8574, Japan
| | - Ryo Ichinohasama
- Department of Hematopathology, Tohoku University Hospital, Sendai, Japan
| | - Hideo Harigae
- Department of Hematology, Tohoku University Hospital, 1-1 Seiryo-cho, Sendai, 980-8574, Japan
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13
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Beitlitum I, Rayyan F, Pokhojaev A, Tal H, Sarig R. A novel micro-CT analysis for evaluating the regenerative potential of bone augmentation xenografts in rabbit calvarias. Sci Rep 2024; 14:4321. [PMID: 38383533 PMCID: PMC10881464 DOI: 10.1038/s41598-024-54313-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 02/11/2024] [Indexed: 02/23/2024] Open
Abstract
Guided Bone Regeneration is a common procedure, yet, as new grafting materials are being introduced into the market, a reliable evaluation method is required. Critical size defect in animal models provides an accurate simulation, followed by histological sections to evaluate the new bone formation. However, histology is destructive, two-dimensional and technique-sensitive. In this study we developed a novel volumetric Micro-CT analysis to quantify new bone formation characteristics. Eight adult female New Zealand white rabbits were subjected to calvarial critical-size defects. Four 8 mm in diameter circular defects were preformed in each animal, to allow random allocation of four treatment modalities. All calvarias were scanned using Micro-CT. Each defect was segmented into four equal parts: pristine bone, outer, middle, and inner. Amira software (v. 6.3, www.fei.com ) was used to calculate the new bone volume in each region and compare it to that of the pristine bone. All grafting materials demonstrated that new bone formation decreased as it moved inward. Only the inner region differed across grafting materials (p = 0.001). The new Micro-CT analysis allowed us to divide each defect into 3D regions providing better understanding of the bone formation process. Amongst the various advantages of the Micro-CT, it enables us to quantify the graft materials and the newly formed bone independently, and to describe the defect morphology in 3D (bi- vs. uni-cortical defects). Providing an insight into the inner region of the defect can better predict the regenerative potential of the bone augmentation graft material. Therefore, the suggested Micro-CT analysis is beneficial for further developing of clinical approaches.
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Affiliation(s)
- Ilan Beitlitum
- Department of Periodontology and Dental Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Fatma Rayyan
- Department of Periodontology and Dental Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Ariel Pokhojaev
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Haim Tal
- Department of Periodontology and Dental Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Rachel Sarig
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv, 6997801, Israel.
- Shmunis Family Anthropology Institute, the Dan David Center for Human Evolution and Biohistory Research, Faculty of Medicine, Tel-Aviv University, Tel Aviv, 6997801, Israel.
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14
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Wei M, Jiang W, Wang R, Xiao B, Zhan Q. Langerhans cell histiocytosis of the skull in 23 children. Eur J Med Res 2024; 29:136. [PMID: 38368348 PMCID: PMC10874530 DOI: 10.1186/s40001-024-01727-5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 02/12/2024] [Indexed: 02/19/2024] Open
Abstract
OBJECTIVE To explore the clinical features, diagnosis, treatment and prognosis of Langerhans cell histiocytosis (LCH) of the skull in children. METHODS This study retrospectively summarized the clinical manifestations, treatment methods and follow-up status of children with skull LCH who were admitted to the Department of Neurosurgery of Shanghai Children's Hospital from January 2014 to June 2021. RESULTS A total of 23 patients confirmed by histology as LCH received hospitalization treatment, including 14 males and 9 females, aged (5.76 ± 3.86) years old. The clinical manifestations were mostly incidentally discovered head masses that gradually enlarged (19 cases, 82.61%). Only 2 cases are affected by multiple systems, while the rest are affected by single systems. 9 patients were involved in multiple skull lesions, and 14 patients had local skull lesions. All patients underwent surgical intervention, with 17 patients undergoing total resection and 6 patients undergoing biopsy. 21 patients received chemotherapy after surgery. The median follow-up was 2.46 years (range 0.33-6.83 years). 21 patients had their symptoms and signs under control or even resolved, and 2 patients experienced recurrence during follow-up. The overall control rate reached 91.30%. CONCLUSION Personalized treatment plans according to different clinical types. Regular outpatient follow-up is crucial to monitor disease recurrence and late effects.
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Affiliation(s)
- Min Wei
- Department of Neurosurgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Luding Rd. 355, Shanghai, People's Republic of China
| | - Wenbin Jiang
- Department of Neurosurgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Luding Rd. 355, Shanghai, People's Republic of China
| | - Rui Wang
- Department of Neurosurgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Luding Rd. 355, Shanghai, People's Republic of China
| | - Bo Xiao
- Department of Neurosurgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Luding Rd. 355, Shanghai, People's Republic of China
| | - Qijia Zhan
- Department of Neurosurgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Luding Rd. 355, Shanghai, People's Republic of China.
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15
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Oh J, Han SI, Lim SC. Intraosseous hemangioma with aneurysmal bone cyst-like changes of the hyoid bone: Case report and literature review. Medicine (Baltimore) 2024; 103:e37137. [PMID: 38335421 PMCID: PMC10860961 DOI: 10.1097/md.0000000000037137] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/01/2024] [Accepted: 01/11/2024] [Indexed: 02/12/2024] Open
Abstract
RATIONALE Intraosseous hemangioma is a rare benign vascular tumor of the bone that can affect any body part; however, the most common site is the vertebra, followed by calvarial bones. PATIENT CONCERNS We present a case of intraosseous hemangioma in a 23-year-old male who presented a feeling of fullness in the throat for 3 months. The hyoid bone level had a hard mass of about 5 cm. Fine needle aspiration showed 5 mL dark bloody aspirates. Magnetic resonance image showed a 5.3 cm mixed signal intensity lesion in the hyoid body. DIAGNOSIS Histopathologic examination showed intraosseous hemangioma with aneurysmal bone cyst (ABC)-like changes in the hyoid bone. INTERVENTIONS The mass was completely removed without significant problems. OUTCOMES Complete mass excision and symptomatic improvements were achieved, and no subsequent relapses were observed. LESSONS The authors experienced a case of intraosseous hemangioma with ABC-like changes. There has been no case report of intraosseous hemangioma in the hyoid bone. This case showed a spectral pattern of the ABC-like changes developing from the underlying bone tumor as a secondary change. ABC-like changes in bone tumors can mislead the diagnosis. Careful examination of the tumor is essential for the correct diagnosis of ABC or ABC-like changes.
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Affiliation(s)
- Jeonghyun Oh
- Department of Otorhinolaryngology, Chosun University, Gwangju, Korea
| | - Song Iy Han
- Division of Premedical Science, Chosun University, Gwangju, Korea
| | - Sung-Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju, Korea
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16
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Shanbhag S, Al-Sharabi N, Kampleitner C, Mohamed-Ahmed S, Kristoffersen EK, Tangl S, Mustafa K, Gruber R, Sanz M. The use of mesenchymal stromal cell secretome to enhance guided bone regeneration in comparison with leukocyte and platelet-rich fibrin. Clin Oral Implants Res 2024; 35:141-154. [PMID: 37964421 DOI: 10.1111/clr.14205] [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: 06/02/2023] [Revised: 09/25/2023] [Accepted: 11/01/2023] [Indexed: 11/16/2023]
Abstract
OBJECTIVES Secretomes of mesenchymal stromal cells (MSC) represent a novel strategy for growth-factor delivery for tissue regeneration. The objective of this study was to compare the efficacy of adjunctive use of conditioned media of bone-marrow MSC (MSC-CM) with collagen barrier membranes vs. adjunctive use of conditioned media of leukocyte- and platelet-rich fibrin (PRF-CM), a current growth-factor therapy, for guided bone regeneration (GBR). METHODS MSC-CM and PRF-CM prepared from healthy human donors were subjected to proteomic analysis using mass spectrometry and multiplex immunoassay. Collagen membranes functionalized with MSC-CM or PRF-CM were applied on critical-size rat calvaria defects and new bone formation was assessed via three-dimensional (3D) micro-CT analysis of total defect volume (2 and 4 weeks) and 2D histomorphometric analysis of central defect regions (4 weeks). RESULTS While both MSC-CM and PRF-CM revealed several bone-related proteins, differentially expressed proteins, especially extracellular matrix components, were increased in MSC-CM. In rat calvaria defects, micro-CT revealed greater total bone coverage in the MSC-CM group after 2 and 4 weeks. Histologically, both groups showed a combination of regular new bone and 'hybrid' new bone, which was formed within the membrane compartment and characterized by incorporation of mineralized collagen fibers. Histomorphometry in central defect sections revealed greater hybrid bone area in the MSC-CM group, while the total new bone area was similar between groups. CONCLUSION Based on the in vitro and in vivo investigations herein, functionalization of membranes with MSC-CM represents a promising strategy to enhance GBR.
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Affiliation(s)
- Siddharth Shanbhag
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, Bergen, Norway
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Niyaz Al-Sharabi
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Carina Kampleitner
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, Division of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, The Research Center in Cooperation with AUVA, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Samih Mohamed-Ahmed
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Einar K Kristoffersen
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, Bergen, Norway
| | - Stefan Tangl
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, Division of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Kamal Mustafa
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Reinhard Gruber
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Mariano Sanz
- ETEP Research Group, Faculty of Odontology, University Complutense of Madrid, Madrid, Spain
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17
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Ethunandan M. Management of Midfacial and Skull Vault Osseous Vascular Lesions. Oral Maxillofac Surg Clin North Am 2024; 36:61-72. [PMID: 37821289 DOI: 10.1016/j.coms.2023.09.007] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
There continuous to be widespread misuse of nomenclature used to described vascular anomalies, This is even more pronounced in the case of intra-osseous lesions. Bone involvement is more common with vascular malformations and extremely rare in haemangiomas. An accurate diagnosis is mandatory for tailored management and often based on a thorough history, clinical examination, and cross-sectional imaging. Surgery remains the main stay for the management of symptomatic venous malformations. Embolisation with or without surgery is the main stay for arteriovenous malformations. Virtual surgical planning, with surgical guides and patient specific implants help achieve predictably excellent results.
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Affiliation(s)
- Madan Ethunandan
- Oral & Maxillofacial Surgery, University Hospital Southampton, Tremona Road, Southampton, SO16 6YD, UK; Oral & Maxillofacial Surgery, Sri Ramchandra Institute of Higher Education and Research, Prour, Chennai, 600116, India.
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18
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Borni M, Abdelmouleh S, Taallah M, Blibeche H, Ayadi A, Boudawara MZ. A case of pediatric primary osteolytic extradural and complicated hydatid cyst revealed by a skull vault swelling. Childs Nerv Syst 2024; 40:335-343. [PMID: 37243810 PMCID: PMC10837218 DOI: 10.1007/s00381-023-05999-w] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 05/18/2023] [Indexed: 05/29/2023]
Abstract
Hydatidosis is a parasitic infestation whose etiological agent is the larva of the cestode Echinococcus granulosus. It is a zoonosis, and the human being behaves as an accidental intermediate host in the parasitic cycle with pediatric predominance. The most frequent clinical presentation is hepatic, followed by pulmonary, with cerebral hydatidosis being extremely rare. Imaging is characteristic, generally dealing with single cystic lesion, usually unilocular and less frequently multilocular, located mainly intraaxially. Extradural hydatid cyst, whether primary or secondary, remains very rare or even exceptional. The primary disease remains extremely rare, and its clinical picture is related to the number, size, and location of the lesions. Infection within these cerebral hydatid cysts remains an extremely rare occurrence, and only few cases were reported previously in the literature. The authors report the nosological review of the clinical, imaging, surgical, and histopathological records of a pediatric primary osteolytic extradural and complicated hydatid cyst in a 5-year-old North African male patient coming from a rural area who presented for progressive onset of a painless left parieto-occipital soft swelling without any neurological disorder with good outcomes after surgery. The authors report this case due the fact that it had not been documented before in the pediatric population and to the success of the specialized treatment.
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Affiliation(s)
- Mehdi Borni
- Department of Neurosurgery, UHC Habib Bourguiba, Sfax, Tunisia.
| | | | - Marouen Taallah
- Department of Neurosurgery, UHC Habib Bourguiba, Sfax, Tunisia
| | - Hela Blibeche
- Department of Neurology, UHC Habib Bourguiba, Sfax, Tunisia
| | - Ali Ayadi
- Department of Parasitology and Mycology, UHC Habib Bourguiba, Sfax, Tunisia
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Kalafutová S, Králík M, Sedláčková L, Fojtík P, Boroňová I. Porotic hyperostosis and cribra orbitalia in samples from the Late Hillfort Period sites at Dětkovice - Za zahradama (district Prostějov) and Vídeňská street (district Brno), Czech Republic. Anthropol Anz 2024; 81:69-78. [PMID: 37539649 DOI: 10.1127/anthranz/2023/1676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 08/05/2023]
Abstract
Porotic hyperostosis and cribra orbitalia are pathological changes occurring on the human skull. These changes were observed and evaluated on skeletal remains from Dětkovice - Za zahradama and Vídeňská Street in Brno; both sites are dated back to the 10th to 12th centuries AD. A total of 605 subjects were assessed for age, sex, and the above-stated pathologies using standard methods. The influence of age and sex on the occurrence of these pathologies was examined statistically. Results indicated that at the site of Dětkovice - Za zahradama, porotic hyperostosis, and cribra orbitalia do not depend on sex or age. However, at Vídeňská Street in Brno, these pathologies do not depend on sex, but they depend on age so a higher incidence of pathologies in juveniles is observed. Differences between both sites could be caused by different numbers of evaluated individuals or different state of preservation of skeletal remains. The aetiology of the origin of these pathologies could not be determined by the methodology used here, but with the prevailing lower age of pathological subjects, a lack of nutrition with consequent absence of iron and developing anaemia might be the cause. Based on our statistical data, we can observe that the pathologies we studied occur more frequently in children older than newborns and younger infants. This may indicate that these studied pathologies arise only during the lifetime of the individual and do not have a prenatal occurrence.
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Affiliation(s)
- Soňa Kalafutová
- University of Prešov, Faculty of Humanities and Natural Sciences, Department of Biology, 17. novembra 1, 080 01 Prešov, Slovak Republic
- Masaryk University, Faculty of Science, Department of Anthropology, Kotlářská 267/2, 61137 Brno, Czech Republic
- University of Prešov, Faculty of Health Care, Department of Technical Disciplines in Health Care, Partizánska 1, 080 01 Prešov, Slovak Republic
| | - Miroslav Králík
- Masaryk University, Faculty of Science, Department of Anthropology, Kotlářská 267/2, 61137 Brno, Czech Republic
| | | | - Pavel Fojtík
- Institute of Archaeological Heritage Brno, Kaloudova 1321/30, 614 00 Brno, Czech Republic
| | - Iveta Boroňová
- University of Prešov, Faculty of Humanities and Natural Sciences, Department of Biology, 17. novembra 1, 080 01 Prešov, Slovak Republic
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Gómez-González S, Roca de Togores Muñoz C, Campillo-Valero D. A probable case of an "Hourglass" epidermoid cyst located in the posterior fossa in an individual from Ibi, Alicante, Spain (12 th-13 th centuries AD). Anthropol Anz 2024; 81:109-120. [PMID: 37580946 DOI: 10.1127/anthranz/2023/1638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/21/2023] [Accepted: 06/27/2023] [Indexed: 08/16/2023]
Abstract
Epidermoid bone cysts are rare, unilocular, and slow growing. They develop by the accumulation of ectodermal remnants, and they may be congenital or acquired. The most common locations for these bone cysts are the distal phalanges, followed by the skull. This paper documents an adult male from the Islamic (twelfth and thirteen centuries CE) burial site of Ibi in the Province of Alicante, southeast Spain. This individual had a cranial lesion in the form of a roughly elliptical hole in the posterior fossa (left occipital region). The lesion was examined macroscopically and using X-ray photography. Based on the shape of the lesion, the most likely diagnosis would appear to be a benign tumour, a so-called "hourglass" epidermoid cyst. No direct link between this tumour and the cause of death can be established.
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Affiliation(s)
- Susana Gómez-González
- Address for correspondence: Área de Antropología Física, Departamento de Biodiversidad y Gestión Ambiental, Universidad de León, Campus de Vegazana, 24071 León, España
- Address for correspondence: Área de Antropología Física, Departamento de Biodiversidad y Gestión Ambiental, Universidad de León, Campus de Vegazana, 24071 León, España
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21
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Efremov KV, Kozlov AV, Tanyashin SV, Kuldashev KA, Zabolotny RV. [Convexity hyperostotic meningioma en plaque: a systematic review]. Zh Vopr Neirokhir Im N N Burdenko 2024; 88:103-108. [PMID: 38334737 DOI: 10.17116/neiro202488011103] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
BACKGROUND Planar hyperostotic meningiomas account for 2-9% of intracranial meningiomas. They are characterized by planar node following the contours of the inner surface of the skull. Hyperostosis is present in most cases. Timely diagnosis of skull base tumors is usually simple due to early involvement of the cranial nerves. However, convexity meningiomas en plaque usually reach large dimensions that complicates surgery and radiotherapy. OBJECTIVE To analyze the current state of diagnosis, molecular biology and surgical treatment of hyperostotic meningiomas en plaque. MATERIAL AND METHODS A systematic review was performed in accordance with the PRISMA guidelines. Searching for literature data included the following keywords: «planar meningioma», «hyperostotic meningioma», «meningioma en plaque», «infiltrative meningioma». We reviewed the PubMed and Google Scholar databases until May 2023 and enrolled only full-text Russian-, English- or French-language reports. RESULTS AND DISCUSSION Among primary 332 reports, 35 references met the inclusion criteria. We found less severity or absence of focal neurological symptoms, comparable incidence of intracranial hypertension and no histological differences between planar and nodular meningiomas. Analysis of molecular biological features of planar meningiomas, including cell cultures, is feasible. There is no consensus regarding surgical treatment and radiotherapy. Most publications are case reports. CONCLUSION The results of treatment of planar hyperostotic meningiomas, especially large and giant ones, are unsatisfactory. There is no a generally accepted algorithm for treating patients in the literature. This problem requires further research.
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Affiliation(s)
- K V Efremov
- Burdenko Neurosurgical Center, Moscow, Russia
| | - A V Kozlov
- Burdenko Neurosurgical Center, Moscow, Russia
- Andijan State Medical Institute, Andijan, Uzbekistan
| | | | - K A Kuldashev
- Andijan State Medical Institute, Andijan, Uzbekistan
| | - R V Zabolotny
- Moscow Multi-field Clinical Center «Kommunarka», Moscow, Russia
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22
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Santos M, Cunha B, Abreu V, Ferraciolli S, Godoy L, Murakoshi R, Amaral LLF, Conceição C. Imaging of pediatric skull lytic lesions: A review. J Neuroimaging 2024; 34:26-43. [PMID: 37933199 DOI: 10.1111/jon.13166] [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: 09/08/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 11/08/2023] Open
Abstract
Skull lesions in pediatric population are common findings on imaging and sometimes with heterogeneous manifestations, constituting a diagnostic challenge. Some lesions can be misinterpreted for their aggressiveness, as with larger lesions eroding cortical bone, containing soft tissue components, leading to excessive and, in some cases, invasive inappropriate etiological investigation. In this review, we present multiple several conditions that may present as skull lesions or pseudolesions, organized by groups (anatomic variants, congenital and development disorders, traumatic injuries, vascular issues, infectious conditions, and tumoral processes). Anatomic variants are common imaging findings that must be recognized by the neuroradiologist. Congenital malformations are rare conditions, such as aplasia cutis congenita and sinus pericranii, usually seen at earlier ages, the majority of which are benign findings. In case of trauma, cephalohematoma, growing skull fractures, and posttraumatic lytic lesions should be considered. Osteomyelitis tends to be locally aggressive and may mimic malignancy, in which cases, the clinical history can be the key to diagnosis. Vascular (sickle cell disease) and tumoral (aneurismal bone cyst, eosinophilic granuloma, metastases) lesions are relatively rare lesions but should be considered in the differential diagnosis, in the presence of certain imaging findings. The main difficulty is the differentiation between the benign and malignant nature; therefore, the main objective of this pictorial essay is to review the main skull lytic lesions found in pediatric age, describing the main findings in different imaging modalities (CT and MRI), allowing the neuroradiologist greater confidence in establishing the differential diagnosis, through a systematic and simple characterization of the lesions.
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Affiliation(s)
- Mariana Santos
- Neuroradiology Department, Hospital de Braga, Braga, Portugal
| | - Bruno Cunha
- Neuroradiology Department, Hospital de Braga, Braga, Portugal
| | - Vasco Abreu
- Neuroradiology Department, Centro Hospitalar e Universitário do Porto, Porto, Portugal
| | - Suely Ferraciolli
- Neuroradiology Department, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Luís Godoy
- Neuroradiology Department, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Neuroradiology Department, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Rodrigo Murakoshi
- Neuroradiology Department, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Neuroradiology and Head & Neck Department, Hospital Rede D'Or, São Paulo, Brazil
| | | | - Carla Conceição
- Neuroradiology Department, Hospital Dona Estefânia, Centro Hospitalar Universitário Lisboa Central, Lisbon, Portugal
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23
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Shnyakin PG, Isaeva NV, Severina MI, Karnaukhov DI. [Idiopathic hypertrophic pachymeningitis]. Zh Nevrol Psikhiatr Im S S Korsakova 2024; 124:114-119. [PMID: 38529871 DOI: 10.17116/jnevro2024124031114] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
The article presents a case of idiopathic hypertrophic pachymeningitis of a 61-year-old male patient with severe cephalgia and progressive neuropathy of the oculomotor nerves. The diagnosis was confirmed by MRI with gadolinium, which revealed thickening of the dura mater with accumulation of paramagnetic in the convexital parts of the frontal and temporal regions, as well as on the base of the skull and tentorium. During the use of pulse therapy with glucocorticosteroids (GCS) the symptoms regressed, but when the therapy was stopped, there was a relapse of ptosis and oculomotor abnormalities on the other side followed by a slower effect of GCS therapy. The article also presents a brief review of current knowledge about this pathology.
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Affiliation(s)
- P G Shnyakin
- Voino-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia
- Regional Clinical Hospital, Krasnoyarsk, Russia
| | - N V Isaeva
- Voino-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia
- Regional Clinical Hospital, Krasnoyarsk, Russia
| | - M I Severina
- Voino-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia
- Regional Clinical Hospital, Krasnoyarsk, Russia
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24
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Al Qabbani A, Rani KGA, AlKawas S, Sheikh Abdul Hamid S, Yap Abdullah A, Samsudin AR, Azlina A. Evaluation of the osteogenic potential of demineralized and decellularized bovine bone granules following implantation in rat calvaria critical-size defect model. PLoS One 2023; 18:e0294291. [PMID: 38127838 PMCID: PMC10734957 DOI: 10.1371/journal.pone.0294291] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/28/2023] [Indexed: 12/23/2023] Open
Abstract
The aim of this study was to compare the ability of demineralized (DMB) and decellularized (DCC) bovine bone granules to support bone regeneration in rat calvaria critical-size defects. DMB and DCC were prepared using a previously published method. The granule size used ranged between 500 and 750 μm. A total of forty-eight Sprague-Dawley rats were divided into two groups (n = 24). A pair of 5 mm diameter defects were created on the calvaria of the rats in the right and left parietal bone in both groups. Group A animals received DMB granules and Group B received DCC granules in the right parietal defect side while the left parietal untreated defect acted as sham surgery for both groups. Four animals per group were euthanized in a CO2 chamber at day 7, 14 and 21 post-surgery and the calvaria implantation site biopsy harvested was subjected to osteogenic gene expression analysis. Another four animals per group were euthanized at days 15, 30 and 60 post surgery and the calvaria implantation site biopsy harvested was subjected to histological, immunohistochemistry, RAMAN spectroscopy and Micro-CT analysis at the mentioned time points. Statistical analysis was conducted using t-tests and ANOVA. Histomorphometry showed significantly higher new bone formation in the DCC sites (p<0.05) compared to DMB. Both DMB and DCC implantation sites showed distinct staining for osteocalcin and osteopontin proteins compared to their respective sham sites. By day 21 after implantation, DCC sites demonstrated significantly elevated mRNA levels of osteonectin (p<0.001), osteopontin (p<0.001), osteocalcin (p<0.0001), ALP (p<0.01), and BMP-2 (p<0.001) compared to DMB. However, VEGF expression showed no significant differences at this time point between the two groups. Micro-CT analysis also showed enhanced defect closure and higher bone density in DCC implanted sites while RAMAN spectra demonstrated increased abundance of collagen and bone minerals, especially, PO43- ions than DMB. In conclusion, both DMB and DCC granules demonstrated favorable osteogenic potential in critical-sized defects, with DCC exhibited superior osteoconductive, osteoinductive and osteogenesis properties.
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Affiliation(s)
- Ali Al Qabbani
- Oral and Craniofacial Health Sciences Department, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
- School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
| | - K. G. Aghila Rani
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Sausan AlKawas
- Oral and Craniofacial Health Sciences Department, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | | | | | - A. R. Samsudin
- Oral and Craniofacial Health Sciences Department, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Ahmad Azlina
- School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
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McDermott T, Amarneh M, Sato Y, Watal P, Charmi V, Fuortes M, Faruqui S, Sato TS. Pediatric focal calvarial lesions: an illustrated review. Pediatr Radiol 2023; 53:2699-2711. [PMID: 37964037 DOI: 10.1007/s00247-023-05795-3] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023]
Abstract
Focal skull lesions in children can be diagnostically challenging with a wide variety of potential etiologies. Understanding the diverse pathologies and recognizing their associated clinical and imaging characteristics is crucial for accurate diagnosis and appropriate treatment planning. We review pertinent anatomy of the scalp and calvarium and review different pathologies that can present with focal skull lesions in pediatric patients. These include neoplastic, non-neoplastic tumor-like, congenital, post traumatic, and vascular-associated etiologies. We review the key clinical and imaging features associated with these pathologies and present teaching points to help make the correct diagnosis. It is important for radiologists to be aware of the common and rare etiologies of skull lesions as well as the clinical and imaging characteristics which can be used to develop an accurate differential to ensure a timely diagnosis and initiate appropriate management.
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Affiliation(s)
- Tyler McDermott
- Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Mohammad Amarneh
- Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Yutaka Sato
- Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Pankaj Watal
- Department of Radiology, Nemours Children's Health, Orlando, FL, USA
| | - Vijapura Charmi
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Michaelangelo Fuortes
- Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Sami Faruqui
- Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - T Shawn Sato
- Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA.
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26
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Díaz-Navarro S, Haber Uriarte M, García-González R. Holes in the Head. Double cranial surgery on an individual from the Chalcolithic burial site of Camino del Molino (SE Spain). Int J Paleopathol 2023; 43:22-30. [PMID: 37717498 DOI: 10.1016/j.ijpp.2023.09.003] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 09/06/2023] [Accepted: 09/10/2023] [Indexed: 09/19/2023]
Abstract
OBJECTIVE This article analyses new prehistoric evidence of trepanation from a collective burial site in the south-eastern Iberian Peninsula. MATERIALS The trepanned individual was documented in the Chalcolithic burial site of Camino del Molino, where 1348 individuals (30.7 % non-adults and 69.3 % adults) were deposited in two contiguous funerary phases, making it a reference site for the knowledge of Recent Prehistoric populations. METHODS The individual has been sexed using traditional anthropological methods and ancient DNA. C14 dating has also been obtained. The lesion has been analysed macroscopically and microscopically using SEM. RESULTS The skull under study belonged to an adult female deposited in the second burial phase (2566-2239 years cal BCE). It exhibits in the anterior region of the right temporal fossa two contiguous and partially overlapping holes that correspond to two trepanations performed using the scraping technique. CONCLUSIONS It is a double cranial trepanation with signs of bone remodelling suggesting survival from surgery. No pathological signs were identified potentially associated with the intervention. SIGNIFICANCE This is the second case of surgical interventions in the geographical area of study and one of the few evidences of this practice in women during prehistoric times. LIMITATIONS So far only the articulated skeletons from this burial have been thoroughly analysed. SUGGESTIONS FOR FURTHER RESEARCH Further intensive review of skull collection is advised to learn more about these surgical interventions in Copper Age and to go deeper into the causes that motivated their execution.
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Affiliation(s)
- Sonia Díaz-Navarro
- Departamento de Prehistoria, Arqueología, Antropología Social y CC. y TT. Historiográficas, Universidad de Valladolid, Facultad de Filosofía y Letras, Plaza del Campus s/n, 47011 Valladolid, Spain.
| | - María Haber Uriarte
- Departamento de Prehistoria, Arqueología, Historia Antigua, Historia Medieval y CC. y TT. Historiográficas, Universidad de Murcia, Spain
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27
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Schernig-Mráz M, Grauer AL, Morgenegg G. Dental health in Roman dogs: A pilot study using standardized examination methods. Int J Paleopathol 2023; 43:72-84. [PMID: 37839223 DOI: 10.1016/j.ijpp.2023.09.007] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 10/17/2023]
Abstract
OBJECTIVE To utilize standardized clinical veterinary methods to analyze dental health in a series of Roman dog maxillae and mandibles and to compare results to modern clinical data. MATERIALS 28 skulls of juvenile and adult dogs from three archaeological sites in Switzerland and Germany dating to the Roman period. METHODS Standardized examination was carried out, which included metric radiographic assessment to diagnose oral pathology and estimate age at death. In one case, CT analysis was undertaken. RESULTS The estimated average age at death was between three and four years old. Tooth fracture, periodontal disease, the presence of non-vital teeth, and brachycephalic skull form were found in the sample. Tooth resorption was unexpectedly noted. CONCLUSION The study provides valuable insights into the dental health of dogs in the Roman era. Compared to modern dogs, Roman dogs examined in this study appear to have a shorter lifespan but display a high rate of pathological dental disease, while disease patterns were very similar to those of modern dogs. Dogs with pronounced brachycephalic features were found. SIGNIFICANCE This pilot study is the first to use standardized clinical examination and recording techniques to assess dental health in dogs from archaeological contexts. It provides insight into the dental health of Roman era dogs and offers data upon which cross-populational studies can be initiated. LIMITATIONS The sample size and geographic location of the archaeological sites were limited. SUGGESTIONS FOR FURTHER RESEARCH Subsequent standardized studies, preferably in as many different Roman Empire regions as possible, are recommended.
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Affiliation(s)
- Monika Schernig-Mráz
- Integrative Prehistory and Archaeological Science (IPAS), University of Basel, Spalenring 145, CH-4055 Basel, Switzerland.
| | - Anne L Grauer
- Department of Anthropology, Loyola University Chicago, 1032 W. Sheridan Road, Chicago, IL 60660, USA.
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28
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Anderson AS. Observer agreement on the morphology of porous cranial lesions: Results from a workshop at the 2019 meeting of the Paleopathology Association. Int J Paleopathol 2023; 43:68-71. [PMID: 37806166 DOI: 10.1016/j.ijpp.2023.09.006] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 09/17/2023] [Accepted: 09/19/2023] [Indexed: 10/10/2023]
Abstract
OBJECTIVE This paper presents the results of a 2019 Paleopathology Association workshop that tested observer agreement on porous cranial lesion morphology and presence using multiple sets of existing guidelines for data collection. MATERIALS Sixteen conference attendees of varying osteological experience served as observers. Three crania were assigned to each of four published guidelines for identifying and categorizing lesion morphology, for a total of twelve well-preserved human crania from the National Museum of Natural History Biological Anthropology Collections. METHODS Observers assessed each cranium macroscopically according to its assigned set of guidelines. RESULTS Observer concordance was higher using scoring guidelines with higher-quality photographs, such as the 2019 guidelines from Rinaldo and colleagues. CONCLUSIONS Data collection guidelines with high-quality color photos may support greater reliability of researcher-generated data on macroscopic skeletal features. SIGNIFICANCE The conclusions of any research study are only as reliable as the data on which they are based. This work highlights the need for ongoing practices of quality control in a field in which much data results from individual judgement calls. LIMITATIONS Observer concordance is not a measure of observer accuracy. Sample size is insufficient to draw broadly generalizable conclusions on the reliability of data collected using the guidelines tested, and conference environments are not a facsimile of research settings. SUGGESTIONS FOR FURTHER RESEARCH Iterative testing of methodological consistency using larger sample sizes and more non-pathological crania is advised to identify the factors that influence observer discordance and to improve guidelines for qualitative assessments.
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Affiliation(s)
- Amy S Anderson
- Department of Anthropology, University of California Santa Barbara, Santa Barbara, CA 93106, USA.
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29
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Li C, Parekejiang Pataer, Gong Z. Digitalized diagnosis and treatment of pigmented villonodular synovitis of temporomandibular joint: a case report. Hua Xi Kou Qiang Yi Xue Za Zhi 2023; 41:725-730. [PMID: 38597040 PMCID: PMC10722445 DOI: 10.7518/hxkq.2023.2023198] [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] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/19/2023] [Indexed: 04/11/2024]
Abstract
Pigmented villonodular synovitis (PVNS) is a rare locally aggressive benign tumor in the temporomandibular joint (TMJ). This paper presents a patient with TMJ-PVNS involving masseteric space, temporal bone, zygomatic process, and mandibular ramus. Digital technique was used to determine the boundary of the lesion and reconstruct the normal glenoid fossa. The temporalis myofascial flap was transplanted between titanium mesh and condyle to reconstruct the disk after the complete resection of the tumor. The patient's facial profile is symmetrical, with a mouth ope-ning of 43 mm. No local recurrence and complications, such as cerebrospinal fluid fistula and encephaloceles, were detected during 30-month follow-up period.
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Affiliation(s)
- Chenxi Li
- Dept. of Oral and Maxillofacial Oncology & Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
- Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi 830054, China
- Dept. of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Parekejiang Pataer
- Dept. of Oral and Maxillofacial Oncology & Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
- Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi 830054, China
| | - Zhongcheng Gong
- Dept. of Oral and Maxillofacial Oncology & Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
- Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi 830054, China
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30
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Liu J, Froelicher JH, French B, Linguraru MG, Porras AR. Data-driven cranial suture growth model enables predicting phenotypes of craniosynostosis. Sci Rep 2023; 13:20557. [PMID: 37996454 PMCID: PMC10667230 DOI: 10.1038/s41598-023-47622-7] [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: 06/21/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023] Open
Abstract
We present the first data-driven pediatric model that explains cranial sutural growth in the pediatric population. We segmented the cranial bones in the neurocranium from the cross-sectional CT images of 2068 normative subjects (age 0-10 years), and we used a 2D manifold-based cranial representation to establish local anatomical correspondences between subjects guided by the location of the cranial sutures. We designed a diffeomorphic spatiotemporal model of cranial bone development as a function of local sutural growth rates, and we inferred its parameters statistically from our cross-sectional dataset. We used the constructed model to predict growth for 51 independent normative patients who had longitudinal images. Moreover, we used our model to simulate the phenotypes of single suture craniosynostosis, which we compared to the observations from 212 patients. We also evaluated the accuracy predicting personalized cranial growth for 10 patients with craniosynostosis who had pre-surgical longitudinal images. Unlike existing statistical and simulation methods, our model was inferred from real image observations, explains cranial bone expansion and displacement as a consequence of sutural growth and it can simulate craniosynostosis. This pediatric cranial suture growth model constitutes a necessary tool to study abnormal development in the presence of cranial suture pathology.
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Affiliation(s)
- Jiawei Liu
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.
| | - Joseph H Froelicher
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Brooke French
- Department of Pediatric Plastic and Reconstructive Surgery, Children's Hospital Colorado, Aurora, CO, 80045, USA
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Marius George Linguraru
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Hospital, Washington, DC, 20010, USA
- Departments of Radiology and Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, 20052, USA
| | - Antonio R Porras
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
- Department of Pediatric Plastic and Reconstructive Surgery, Children's Hospital Colorado, Aurora, CO, 80045, USA
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
- Department of Pediatric Neurosurgery, Children's Hospital Colorado, Aurora, CO, 80045, USA
- Departments of Pediatrics and Biomedical Informatics, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
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Chen Z, Ning J. A rare case of aplasia cutis congenita. Asian J Surg 2023; 46:4848-4849. [PMID: 37308381 DOI: 10.1016/j.asjsur.2023.05.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 05/25/2023] [Indexed: 06/14/2023] Open
Abstract
In this study, we retrospectively analyzed the clinical data of a newborn with aplasia cutis congenita (ACC) to provide insights for diagnosing and treating the disease. It is believed that ACC with an intact skull and a skin defect diameter of less than 2 cm can be treated conservatively. The main strategies include local disinfection and regular dressing changes to promote epithelial regeneration. The lesion can heal over weeks or months through epithelization adjacent to the defect tissue, resulting in a healed contracture scar with a smooth, hairless surface that can be surgically removed later. For children with large scalp defects or skull defects, skin transplantation, free flap, and cranioplasty can be performed to repair the wound and restore the tissue structure. It is worth mentioning that although this child had a scalp defect larger than 2 cm, conservative treatment still had a significant effect. This suggests that conservative treatment can be considered as the first choice for ACC neonates without skull defects, and surgical treatment can be considered when necessary.
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Affiliation(s)
- Zhang Chen
- Department of Pediatrics, Maternal and Child Health Hospital of Fushun County, Sichuan Province, Fushun, 643200, China
| | - Junjie Ning
- Department of Pediatrics, First People's Hospital of Zigong City, Sichuan Province, Zigong, 643000, China.
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Chakraborty D. Story of a Cancer, Skull Lesion, and Acute Stroke. Neurol India 2023; 71:1280-1281. [PMID: 38174481 DOI: 10.4103/0028-3886.391340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Affiliation(s)
- Debabrata Chakraborty
- Department of Neurology, Apollo Multispeciality Hospitals, Kolkata, West Bengal, India
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Mo JT, Darrow MA, Sharma JD. Langerhans cell histiocytosis with aneurysmal bone cyst-like changes: a case-based literature review. Childs Nerv Syst 2023; 39:3057-3064. [PMID: 37522932 PMCID: PMC10643349 DOI: 10.1007/s00381-023-06108-7] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Langerhans cell histiocytosis (LCH) is a neoplastic transformation of myeloid precursors that commonly presents as an osteolytic lesion of the long or flat bones in children. Aneurysmal bone cysts (ABC) are benign neoplasms that frequently affect the metaphysis of long bones and the spine, often revealing a rapidly expansile lesion with fluid-fluid levels. LCH with secondary ABC-like changes is a rare condition that has only been reported five times, with two presentations in the cranium. The aim of this paper is to review the etiology, clinical and radiographic presentations, and treatment of this condition, as well as to present a novel case on the topic. CASE DESCRIPTION We describe a 5-year-old boy with a rapidly growing head mass and eye pain resulting in a diagnosis of LCH with secondary ABC-like changes. Radiography demonstrated an expansile, lytic lesion of the left parietal bone with fluid-fluid levels. A confirmatory diagnosis was made through histopathology, demonstrating an inflammatory, histiocytic infiltrate staining positive for CD1a, CD68, CD207 (Langerin), and S-100. The lesion was surgically excised, and the patient recovered without any complications. CONCLUSION We present a novel case of LCH with secondary ABC-like changes managed with surgical excision. While a radiographic workup with multiple imaging modalities is helpful for diagnosis, a thorough immunohistochemical analysis is essential as imaging characteristics are variable and nonspecific. Furthermore, surgical excision should be considered first-line treatment for lesions involving the skull in surgically accessible areas as it is curative, alleviates symptoms, and allows for histopathological diagnosis.
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Affiliation(s)
- Jonathan Tomonaga Mo
- Department of Neurosurgery, UC Davis Medical Center, 3160 Folsom Blvd Suite 3900, Sacramento, CA, 95816, USA.
| | - Morgan Angus Darrow
- Department of Pathology and Laboratory Medicine, UC Davis Medical Center, 4400 V St, Sacramento, CA, 95817, USA
| | - Julia Devi Sharma
- Department of Neurosurgery, UC Davis Medical Center, 3160 Folsom Blvd Suite 3900, Sacramento, CA, 95816, USA
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Alsabbagh BM, Alessa A, Aljohani H, Alhammad O. Large skull osteoblastoma presented as aneurysmal bone cyst (ABC). Neurosciences (Riyadh) 2023; 28:277-280. [PMID: 37844945 PMCID: PMC10827031 DOI: 10.17712/nsj.2023.4.20230060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/04/2023] [Indexed: 10/18/2023]
Abstract
Aneurysmal bone cysts (ABCs) are rare benign vascular bony lesions mostly encountered in young patients. These cysts can occur as primary lesions or, less frequently, secondary to other pathologies such as osteoblastomas. Skull ABCs are rare and can extend intracranially, presenting with hydrocephalus and bleeding. Here we illustrate the case of a 9-year-old male who presented with headache, nausea, and vomiting, without neurological deficit. Radiological investigations showed a soap-bubble lesion with mass effect over the right cerebellum. The patient underwent right sub-occipital craniotomy with marginal wide resection of the cystic lesion. The patient had excellent outcomes. The histopathological report was consistent with osteoblastoma with an aneurysmal bone cyst.
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Affiliation(s)
- Badriah M. Alsabbagh
- From the Department of Neurosurgery (Alsabbagh, Alessa, Aljohani), King Saud Medical City, from the Department of Neurosurgery (Alhammad), King Faisal Specialist Hospital & Research Centre Riyadh, Kingdom of Saudi Arabia
| | - Awn Alessa
- From the Department of Neurosurgery (Alsabbagh, Alessa, Aljohani), King Saud Medical City, from the Department of Neurosurgery (Alhammad), King Faisal Specialist Hospital & Research Centre Riyadh, Kingdom of Saudi Arabia
| | - Hanan Aljohani
- From the Department of Neurosurgery (Alsabbagh, Alessa, Aljohani), King Saud Medical City, from the Department of Neurosurgery (Alhammad), King Faisal Specialist Hospital & Research Centre Riyadh, Kingdom of Saudi Arabia
| | - Othman Alhammad
- From the Department of Neurosurgery (Alsabbagh, Alessa, Aljohani), King Saud Medical City, from the Department of Neurosurgery (Alhammad), King Faisal Specialist Hospital & Research Centre Riyadh, Kingdom of Saudi Arabia
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Liu Y, Fan Z, Wang J, Dong X, Ouyang W. Modified mouse model of repeated mild traumatic brain injury through a thinned-skull window and fluid percussion. J Neurosci Res 2023; 101:1633-1650. [PMID: 37382058 DOI: 10.1002/jnr.25227] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 04/05/2023] [Accepted: 06/15/2023] [Indexed: 06/30/2023]
Abstract
Mild traumatic brain injury (mTBI) is a clinically highly heterogeneous neurological disorder, none of the existing animal models can replicate the entire sequelae. This study aimed to develop a modified closed head injury (CHI) model of repeated mTBI (rmTBI) for investigating Ca2+ fluctuations of the affected neural network, the alternations of electrophysiology, and behavioral dysfunctions. The transcranial Ca2+ study protocol includes AAV-GCaMP6s infection in the right motor cortex, thinned-skull preparation, and two-photon laser scanning microscopy (TPLSM) imaging. The CHI rmTBI model is fabricated using the thinned-skull site and applying 2.0 atm fluid percussion with 48-h interval. The neurological dysfunction, minor motor performance, evident mood, spatial working, and reference deficits we found in this study mimic the clinically relevant syndromes after mTBI. Besides, our study revealed that there was a trend of transition from Ca2+ singlepeak to multipeak and plateau, and the total Ca2+ activities of multipeaks and plateaus (p < .001 vs. pre-rmTBI value) were significantly increased in ipsilateral layer 2/3 motor neurons after rm TBI. In parallel, there is a low-frequency power shift from delta to theta band (p < .01 vs. control) in the ipsilateral layer 2/3 of motor cortex of the rmTBI mice, and the overall firing rates significantly increased (p < .01 vs. control). Moreover, rmTBI causes slight cortical and hippocampal neuron damage and possibly induces neurogenesis in the dentate gyrus (DG). The alternations of Ca2+ and electrophysiological characteristics in layer 2/3 neuronal network, histopathological changes, and possible neurogenesis may play concertedly and partially contribute to the functional outcome post-rmTBI.
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Affiliation(s)
- Yuncheng Liu
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Zhiheng Fan
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Jihui Wang
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Xuefen Dong
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Wei Ouyang
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
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Markopoulos G, Agrogiannis G, Perrea DN, Iliopoulos DC, Nikolaou VS. Evaluation of Vitamin D-enriched Bone Graft in Surgically-induced Critical-sized Bone Defects: An Experimental Study. J Craniofac Surg 2023; 34:2212-2216. [PMID: 37336500 DOI: 10.1097/scs.0000000000009490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 04/12/2023] [Indexed: 06/21/2023] Open
Abstract
BACKGROUND Restoration of bone defects in the craniac vault may require the use of autografts, allografts, xenografts, or synthetic grafts. There are promising data that vitamin D may play a positive role in graft incorporation. The purpose of the present study is the evaluation of the impact of vitamin D addition to human-derived bone grafts in the healing of critical-sized bone defects in porcine skulls. MATERIALS AND METHODS Four identical critical-sized defects were created in the calvaria of 8 adult Landrace Large White pigs. The first defect was left blank as control, the second defect was filled with human-derived bone graft, the third defect was filled with human-derived bone graft enriched with a low concentration of vitamin D (2 mg/mL), and the fourth defect was filled with human-derived bone graft enriched with a high concentration of vitamin D (10 mg/mL). The animals were sacrificed after 12 weeks. Harvested tissue specimens were qualitatively evaluated by histology. New bone formation (bone volume/tissue volume) was quantitatively measured by histomorphometry. RESULTS Signs of bone formation were evident in all bone sockets. Mean values of the bone volume/tissue volume of the 4 defects were 10.91%, 11.05%, 10.40% and 10.87% respectively, at 12 weeks. In 5 animals, high concentration of vitamin D caused a significant improvement in bone formation in relation to controls. In 3 animals, a high concentration of vitamin D was associated with decreased bone formation compared with controls. No statistical difference was observed in the graft healing among the 4 graft sites ( P > 0.05). CONCLUSIONS The results of this study have shown that the addition of vitamin D to human-derived bone grafts does not have a significant effect on bone formation and graft incorporation in critical-sized bone defects of the porcine calvaria. Further high-quality studies are needed to fully elucidate the role of vitamin D in bone formation and bone graft union.
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Affiliation(s)
- Georgios Markopoulos
- Second Department of Trauma & Orthopaedics, University of Athens Medical School, "Agia Olga" Hospital, Athens, Greece
| | - George Agrogiannis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Despoina N Perrea
- Laboratory of Experimental Surgery and Surgical Research National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Dimitrios C Iliopoulos
- Laboratory of Experimental Surgery and Surgical Research National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Vasileios S Nikolaou
- Second Department of Trauma & Orthopaedics, University of Athens Medical School, "Agia Olga" Hospital, Athens, Greece
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Zhang Z, Li A, Liu J, Cheng Y, Ma J, Xing H. Giant Malignant Meningioma Penetrates the Skull. J Craniofac Surg 2023; 34:e584-e586. [PMID: 37336497 DOI: 10.1097/scs.0000000000009436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/15/2023] [Indexed: 06/21/2023] Open
Abstract
Meningioma is a primary tumor of the central nervous system, most commonly found in the middle-aged and elderly. Most meningiomas are benign, whereas malignant meningiomas account for only 1% of all meningiomas. Meningiomas usually grow slowly, and patients often have headaches and epilepsy as the first symptoms. According to the location of the tumor, there can also be vision, visual field, olfactory, hearing impairment, and so on. Surgery is the main treatment. A case of giant malignant meningioma penetrating the skull is reported. The patient was a 67-year-old male with a left parietal scalp mass about 1 year ago, which gradually enlarged to the size of 6×6 cm and had no other symptoms. Imaging examination showed that the tumor eroded the skull, and the density was uneven. After surgical resection (Simpson grade I), poorly differentiated meningioma (World Health Organization Grade Ⅲ) was returned pathologically. After operation, the patient recovered well.
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Affiliation(s)
- Zheng Zhang
- School of clinical medicine, Weifang Medical University, Weifang City
| | - Aijun Li
- Neurosurgery, Binhai College Affiliated Hospital, Qingdao City, Shandong Province
| | - Jingyi Liu
- Plastic Surgery Institute, Weifang Medical University, Weifang
| | - Yingxin Cheng
- Department of Neurosurgery, Weifang People's Hospital Affiliated to Weifang Medical University, Weifang, China
| | - Jinyuan Ma
- School of clinical medicine, Weifang Medical University, Weifang City
| | - Hongshun Xing
- Department of Neurosurgery, Weifang People's Hospital Affiliated to Weifang Medical University, Weifang, China
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Mansour MA, Tarek M. Meningioangiomatosis with Skull Erosion. World Neurosurg 2023; 176:199-201. [PMID: 37178916 DOI: 10.1016/j.wneu.2023.05.021] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023]
Abstract
Meningioangiomatosis (MA) is a rare, poorly studied brain hamartomatous lesion, the etiology of which is not fully elucidated. It typically involves the leptomeninges, extending to the underlying cortex, characterized by small vessel proliferation, perivascular cuffing, and scattered calcifications. Given its close proximity to, or direct involvement of, the cerebral cortex, MA lesions typically manifest in younger patients as recurrent episodes of refractory seizures, comprising approximately 0.6% of operated-on intractable epileptic lesions. Due to the absence of characteristic radiological features, MA lesions constitute a significant radiological challenge, making them easy to miss or misinterpret. Although MA lesions are rarely reported with still-unknown etiology, it is prudent to be aware of these lesions for prompt diagnosis and management to avoid morbidity and mortality associated with delayed diagnosis and treatment. We present a case of a young patient with a first-time seizure caused by a right parieto-occipital MA lesion that was successfully excised via an awake craniotomy, achieving 100% seizure control.
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Affiliation(s)
- Moustafa A Mansour
- Department of Neurology and Neurologic Surgery, Faculty of Medicine, Al-Azhar University, Cairo, Egypt; Department of Emergency Medicine and Critical Care, Faculty of Medicine, Al-Azhar University, Cairo, Egypt; Division of Neuro-Intensive Care, Dar Al-Fouad Medical Corporation, Cairo, Egypt
| | - Mohamed Tarek
- Department of Neurology and Neurologic Surgery, Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
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Park J, Jung N, Lee DJ, Oh S, Kim S, Cho SW, Kim JE, Moon HS, Park YB. Enhanced Bone Formation by Rapidly Formed Bony Wall over the Bone Defect Using Dual Growth Factors. Tissue Eng Regen Med 2023; 20:767-778. [PMID: 37079199 PMCID: PMC10352230 DOI: 10.1007/s13770-023-00534-z] [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: 10/14/2022] [Revised: 02/18/2023] [Accepted: 02/24/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND In guided bone regeneration (GBR), there are various problems that occur in the bone defect after the wound healing period. This study aimed to investigate the enhancement of the osteogenic ability of the dual scaffold complex and identify the appropriate concentration of growth factors (GF) for new bone formation based on the novel GBR concept that is applying rapid bone forming GFs to the membrane outside of the bone defect. METHODS Four bone defects with a diameter of 8 mm were formed in the calvaria of New Zealand white rabbits each to perform GBR. Collagen membrane and biphasic calcium phosphate (BCP) were applied to the bone defects with the four different concetration of BMP-2 or FGF-2. After 2, 4, and 8 weeks of healing, histological, histomorphometric, and immunohistochemical analyses were conducted. RESULTS In the histological analysis, continuous forms of new bones were observed in the upper part of bone defect in the experimental groups, whereas no continuous forms were observed in the control group. In the histomorphometry, The group to which BMP-2 0.5 mg/ml and FGF-2 1.0 mg/ml was applied showed statistically significantly higher new bone formation. Also, the new bone formation according to the healing period was statistically significantly higher at 8 weeks than at 2, 4 weeks. CONCLUSION The novel GBR method in which BMP-2, newly proposed in this study, is applied to the membrane is effective for bone regeneration. In addition, the dual scaffold complex is quantitatively and qualitatively advantageous for bone regeneration and bone maintenance over time.
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Affiliation(s)
- Jaehan Park
- Department of Prosthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Dental Hospital Room 717, Seoul, 03722, Republic of Korea
| | - Narae Jung
- Department of Prosthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Dental Hospital Room 717, Seoul, 03722, Republic of Korea
- Department of Clinical Dentistry, BK21 FOUR Project, Oral Science Research Center, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Dong-Joon Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Taste Research Center, Oral Science Research Center, BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Seunghan Oh
- Department of Dental Biomaterials and Institute of Biomaterials and Implant, College of Dentistry, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Sungtae Kim
- Department of Periodontology, Dental Research Institute, Seoul National University School of Dentistry, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Sung-Won Cho
- Division of Anatomy and Developmental Biology, Department of Oral Biology, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Jong-Eun Kim
- Department of Prosthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Dental Hospital Room 717, Seoul, 03722, Republic of Korea
| | - Hong Seok Moon
- Department of Prosthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Dental Hospital Room 717, Seoul, 03722, Republic of Korea
| | - Young-Bum Park
- Department of Prosthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Dental Hospital Room 717, Seoul, 03722, Republic of Korea.
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O'Donnell L, Buikstra JE, Hill EC, Anderson AS, O'Donnell MJ. Skeletal manifestations of disease experience: Length of illness and porous cranial lesion formation in a contemporary juvenile mortality sample. Am J Hum Biol 2023; 35:e23896. [PMID: 36974669 DOI: 10.1002/ajhb.23896] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/29/2023] Open
Abstract
OBJECTIVES Porous lesions of the orbit (cribra orbitalia [CO]) and cranial vault (porotic hyperostosis [PH]) are used as skeletal indicators of childhood stress. Because they are understudied in contemporary populations, their relationship to disease experience is poorly understood. This paper examines the relationship between length of childhood illness and CO/PH formation in a clinically documented sample. "Turning points," which identify the window for lesion formation for CO/PH, are defined, implications for hidden heterogeneity in frailty are considered. METHODS Data are from 333 (199 males; 134 females) pediatric postmortem computed tomography scans. Individuals died in New Mexico (2011-2019) and are 0.5 to 15.99 years (mean = 7.1). Length of illness was estimated using information from autopsy and field reports. Logistic regression was used to estimate predicted probabilities, odds ratios, and the temporal window for lesion formation. RESULTS Illness, single bouts, or cumulative episodes lasting over 1 month is associated with higher odds of CO; individuals who were never sick have lower odds of having PH. This relationship was consistent for fatal and incidental illnesses that did not cause death. The developmental window for CO formation appears to close at 8 years. CONCLUSIONS Those ill for over 1 month are more likely to have CO/PH than those with acute illnesses. Some individuals lived sufficiently long to form CO/PH but died of illness. Others with lesions died of circumstances unrelated to disease. This indicates hidden variation in robusticity even among ill individuals with CO/PH, which is vital in interpreting lesion frequencies in the archeological record.
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Affiliation(s)
- Lexi O'Donnell
- College of Population Health, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Jane E Buikstra
- Center for Bioarchaeological Research, School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, USA
| | - Ethan C Hill
- Division of Physical Therapy, Department of Orthopaedics and Rehabilitation, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Amy S Anderson
- Department of Anthropology, University of California - Santa Barbara, Santa Barbara, California, USA
| | - Michael J O'Donnell
- Bureau of Business & Economic Research, University of New Mexico, Albuquerque, New Mexico, USA
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Benato A, Riva G, Raneri F. Eosinophilic granuloma of the calvarium: is conservative management a valid option? Illustrative case and systematic review of the literature. Childs Nerv Syst 2023; 39:2221-2227. [PMID: 36939904 PMCID: PMC10025804 DOI: 10.1007/s00381-023-05926-z] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/14/2023] [Indexed: 03/21/2023]
Abstract
INTRODUCTION Eosinophilic granuloma (EG) is the most common form of Langerhans cell histiocytosis, presenting as a single osteolytic lesion of the calvarium. Its diagnosis is based on typical clinical and radiological features. While surgical resection has been the standard treatment for EG, growing evidence favors watchful waiting, as unifocal calvarial lesions appear to frequently undergo spontaneous remission. However, histopathological confirmations of this hypothesis are still very limited. METHODS Methods. Here, we report a case of EG with typical clinical and radiological features which, due to intervening circumstances, was resected in a delayed fashion. Moreover, we perform a systematic review of the literature on conservative management of EG. RESULTS In our case, histological examination showed ongoing bone regeneration with no traces of the disease. Through our literature review, we found 47 cases of calvarial EG managed with watchful waiting. No active intervention was required in 43 cases (91%). Four patients (9%) received surgery or chemotherapy due to the persistence/progression of symptoms or family request. Three reports other than ours documented spontaneous disease remission in surgically resected EG upon histopathological examination. CONCLUSION Our report provides further evidence that watchful waiting can be a reasonable option in the management of single calvarial EG.
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Affiliation(s)
- Alberto Benato
- Department of Neurosurgery, ULSS8 Berica, Vicenza, Italy.
| | - Giulio Riva
- Department of Pathology, ULSS8 Berica, Vicenza, Italy
| | - Fabio Raneri
- Department of Neurosurgery, ULSS8 Berica, Vicenza, Italy
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Peciu-Florianu I, Jaillard A, Tuleasca C, Reyns N. Benefits of combined use of 68-Ga Dotatoc and 5-ALA fluorescence for recurrent atypical skull-base meningioma after previous microsurgery and Gamma Knife radiosurgery: a case report. J Med Case Rep 2023; 17:300. [PMID: 37452350 PMCID: PMC10349456 DOI: 10.1186/s13256-023-04023-8] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 06/06/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Studies of novel microsurgical adjuncts, such as 5-aminolevulinic acid (5-ALA) fluorescence have shown various fluorescence patterns within meningiomas, opening new avenues for complete microsurgical resection. Here, we present a recurrent, radiation-induced meningioma, previously operated on two occasions (initial gross total resection and subtotal 12 years later) and also irradiated by Gamma Knife radiosurgery (GKR, 6 years after the first surgery). We thought to assess the usefulness of 68-Ga Dotatoc in surgical target planning and of 5-ALA as an adjunct for maximal microsurgical excision. CASE REPORT We report on a 43 years-old Caucasian male diagnosed with atypical, radiation induced WHO II meningioma, with left basal temporal bone implantation. Hodgkin lymphoma treated with cranial and mediastinal radiation during infancy marked his personal history. He underwent a first gross total microsurgical resection, followed 6 and 12 years later by Gamma Knife radiosurgery (GKR) and second subtotal microsurgical resection, respectively. Magnetic resonance imaging (MRI) displayed new recurrence 13 years after initial diagnosis. He was clinically asymptomatic but routine Magnetic resonance imaging showed constant progression. There was strong 68-Ga Dotatoc uptake. We used 5-ALA guided microsurgical resection. Intraoperative views confirmed strong fluorescence, in concordance with both preoperative Magnetic resonance imaging enhancement and 68-Ga Dotatoc. The tumor was completely removed, with meningeal and bone resection. CONCLUSION The authors conclude that fluorescence-guided resection using 5-ALA is useful for recurrent atypical, radiation-induced meningioma even despite previous irradiation and multiple recurrences.
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Affiliation(s)
| | - Alice Jaillard
- Nuclear Medicine and Functional Imaging, CHU Lille, Roger Salengro Hospital, Lille, France
| | - Constantin Tuleasca
- Neurosurgery Service, CHU Lille, Roger Salengro Hospital, Lille, France.
- Department of Clinical Neurosciences, Neurosurgery Service and Gamma Knife Center, Lausanne University Hospital (CHUV), Rue du Bugnon 44-46, BH-08, CH-1011, Lausanne, Switzerland.
- Faculty of Biology and Medicine (FBM), University of Lausanne (Unil), Lausanne, Switzerland.
- Signal Processing Laboratory (LTS 5), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
| | - Nicolas Reyns
- Neurosurgery Service, CHU Lille, Roger Salengro Hospital, Lille, France
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Baleviciute A, Keane L. A skull bone marrow niche for antitumour neutrophils in glioblastoma. Nat Rev Immunol 2023; 23:414. [PMID: 37237137 DOI: 10.1038/s41577-023-00895-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
| | - Lily Keane
- Preprint Club, Karolinska Institutet, Stockholm, Sweden.
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Tabassum M, Al Suman A, Russo C, Di Ieva A, Liu S. A Deep Learning Framework for Skull Stripping in Brain MRI. Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38082786 DOI: 10.1109/embc40787.2023.10340846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Skull-stripping, an important pre-processing step in neuroimage computing, involves the automated removal of non-brain anatomy (such as the skull, eyes, and ears) from brain images to facilitate brain segmentation and analysis. Manual segmentation is still practiced, but it is time-consuming and highly dependent on the expertise of clinicians or image analysts. Prior studies have developed various skull-stripping algorithms that perform well on brains with mild or no structural abnormalities. Nonetheless, they were not able to address the issue for brains with significant morphological changes, such as those caused by brain tumors, particularly when the tumors are located near the skull's border. In such cases, a portion of the normal brain may be stripped, or the reverse may occur during skull stripping. To address this limitation, we propose to use a novel deep learning framework based on nnUNet for skull stripping in brain MRI. Two publicly available datasets were used to evaluate the proposed method, including a normal brain MRI dataset - The Neurofeedback Skull-stripped Repository (NFBS), and a brain tumor MRI dataset - The Cancer Genome Atlas (TCGA). The method proposed in the study performed better than six other current methods, namely BSE, ROBEX, UNet, SC-UNet, MV-UNet, and 3D U-Net. The proposed method achieved an average Dice coefficient of 0.9960, a sensitivity of 0.9999, and a specificity of 0.9996 on the NFBS dataset, and an average Dice coefficient of 0.9296, a sensitivity of 0.9288, a specificity of 0.9866 and an accuracy of 0.9762 on the TCGA brain tumor dataset.
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Vakharia VN, Toescu S, Copp AJ, Thompson DNP. A topographical analysis of encephalocele locations: generation of a standardised atlas and cluster analysis. Childs Nerv Syst 2023; 39:1911-1920. [PMID: 36897404 PMCID: PMC7614697 DOI: 10.1007/s00381-023-05883-7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 02/14/2023] [Indexed: 03/11/2023]
Abstract
OBJECTIVE Encephaloceles are considered to result from defects in the developing skull through which meninges, and potentially brain tissue, herniate. The pathological mechanism underlying this process is incompletely understood. We aimed to describe the location of encephaloceles through the generation of a group atlas to determine whether they occur at random sites or clusters within distinct anatomical regions. METHODS Patients diagnosed with cranial encephaloceles or meningoceles were identified from a prospectively maintained database between 1984 and 2021. Images were transformed to atlas space using non-linear registration. The bone defect, encephalocele and herniated brain contents were manually segmented allowing for a 3-dimensional heat map of encephalocele locations to be generated. The centroids of the bone defects were clustered utilising a K-mean clustering machine learning algorithm in which the elbow method was used to identify the optimal number of clusters. RESULTS Of the 124 patients identified, 55 had volumetric imaging in the form of MRI (48/55) or CT (7/55) that could be used for atlas generation. Median encephalocele volume was 14,704 (IQR 3655-86,746) mm3 and the median surface area of the skull defect was 679 (IQR 374-765) mm2. Brain herniation into the encephalocele was found in 45% (25/55) with a median volume of 7433 (IQR 3123-14,237) mm3. Application of the elbow method revealed 3 discrete clusters: (1) anterior skull base (22%; 12/55), (2) parieto-occipital junction (45%; 25/55) and (3) peri-torcular (33%; 18/55). Cluster analysis revealed no correlation between the location of the encephalocele with gender (χ2 (2, n = 91) = 3.86, p = 0.15). Compared to expected population frequencies, encephaloceles were relatively more common in Black, Asian and Other compared to White ethnicities. A falcine sinus was identified in 51% (28/55) of cases. Falcine sinuses were more common (χ2 (2, n = 55) = 6.09, p = 0.05) whilst brain herniation was less common (χ2 (2, n = 55) = .16.24, p < 0.0003) in the parieto-occipital location. CONCLUSION This analysis revealed three predominant clusters for the location of encephaloceles, with the parieto-occipital junction being the most common. The stereotypic location of encephaloceles into anatomically distinct clusters and the coexistence of distinct venous malformations at certain sites suggests that their location is not random and raises the possibility of distinct pathogenic mechanisms unique to each of these regions.
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Affiliation(s)
| | - Sebastien Toescu
- Department of Neurosurgery, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Andrew J Copp
- Department of Neurosurgery, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
- Developmental Biology & Cancer Department, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Dominic N P Thompson
- Department of Neurosurgery, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
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Janeczek M, Makowiecki D, Rozwadowska A, Pasicka E. Battle wound as a probable cause of the death of an early medieval horse in Ostrów Lednicki, Poland. Int J Paleopathol 2023; 40:70-76. [PMID: 36621087 DOI: 10.1016/j.ijpp.2023.01.002] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/15/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
OBJECTIVE In this paper we interpret a pathology observed in an early medieval horse skull discovered near the abutment of the eastern Gniezno bridge in Ostrów Lednicki in Poland. We consider the possible cause of the observed damage in the context of the armed invasion of the Czech prince Brzetysław and a battle of Ostrów Lednicki. MATERIALS A skull of a 10-year-old male horse dated to the 11th century. METHODS The skull was examined macroscopically and through computed tomography. Metric analysis was performed using digital callipers and the shoulder height was calculated. RESULTS A penetrating lesion through the left frontal and nasal bones was observed. The floor and roof of the left conchofrontal sinus were destroyed along with the dorsal ethmoturbinates of the ethmoid labyrinth. CONCLUSIONS The observed damage was most likely a result of trauma, which caused a fatal haemorrhage rather than sudden death. Considering the historical context and the area where the skull was discovered, it could be a battle wound. SIGNIFICANCE This case is a rare example of an unhealed peri-mortem lesion in an animal skeleton that can be associated with an immediate cause of death. LIMITATIONS The lack of a complete skeleton does not allow a complete analysis of horse's condition and circumstances associated with its death. SUGGESTIONS FOR FURTHER RESEARCH Identification of the tool or weapon that was used to deliver the blow.
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Affiliation(s)
- Maciej Janeczek
- Wrocław University of Environmental and Life Sciences, ul. Norwida 25, 50-375 Wrocław, Poland.
| | - Daniel Makowiecki
- Nicolaus Copernicus University in Toruń, ul. Gagarina 11, 87-100 Toruń, Poland.
| | - Aleksandra Rozwadowska
- Wrocław University of Environmental and Life Sciences, ul. Norwida 25, 50-375 Wrocław, Poland.
| | - Edyta Pasicka
- Wrocław University of Environmental and Life Sciences, ul. Norwida 25, 50-375 Wrocław, Poland.
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Lane JR, Cochran E, Akbari SHA. Cranial pilomatricoma: a diagnosis to consider. Childs Nerv Syst 2023; 39:821-824. [PMID: 36282306 DOI: 10.1007/s00381-022-05716-z] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/19/2022] [Indexed: 11/26/2022]
Abstract
Pilomatricomas are benign tumors of the hair follicle that occur frequently in the scalp region. They occur most often in children. We describe a case of pilomatricoma in a teenager, referred to neurosurgery for excision. This diagnosis should be considered in the workup of scalp lesions, and this case report should serve to draw attention to this entity.
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Affiliation(s)
- Jessica R Lane
- Division of Pediatric Neurosurgery, Children's Hospital Los Angeles, Los Angeles, CA, USA.
| | - Eric Cochran
- Department of Pathology and Laboratory Medicine, Penn State Hershey Medical Center, Hershey, PA, USA
| | - Syed Hassan A Akbari
- Division of Pediatric Neurosurgery, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
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Shanbhag S, Kampleitner C, Al-Sharabi N, Mohamed-Ahmed S, Apaza Alccayhuaman KA, Heimel P, Tangl S, Beinlich A, Rana N, Sanz M, Kristoffersen EK, Mustafa K, Gruber R. Functionalizing Collagen Membranes with MSC-Conditioned Media Promotes Guided Bone Regeneration in Rat Calvarial Defects. Cells 2023; 12:cells12050767. [PMID: 36899904 PMCID: PMC10001262 DOI: 10.3390/cells12050767] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Functionalizing biomaterials with conditioned media (CM) from mesenchymal stromal cells (MSC) is a promising strategy for enhancing the outcomes of guided bone regeneration (GBR). This study aimed to evaluate the bone regenerative potential of collagen membranes (MEM) functionalized with CM from human bone marrow MSC (MEM-CM) in critical size rat calvarial defects. MEM-CM prepared via soaking (CM-SOAK) or soaking followed by lyophilization (CM-LYO) were applied to critical size rat calvarial defects. Control treatments included native MEM, MEM with rat MSC (CEL) and no treatment. New bone formation was analyzed via micro-CT (2 and 4 weeks) and histology (4 weeks). Greater radiographic new bone formation occurred at 2 weeks in the CM-LYO group vs. all other groups. After 4 weeks, only the CM-LYO group was superior to the untreated control group, whereas the CM-SOAK, CEL and native MEM groups were similar. Histologically, the regenerated tissues showed a combination of regular new bone and hybrid new bone, which formed within the membrane compartment and was characterized by the incorporation of mineralized MEM fibers. Areas of new bone formation and MEM mineralization were greatest in the CM-LYO group. Proteomic analysis of lyophilized CM revealed the enrichment of several proteins and biological processes related to bone formation. In summary, lyophilized MEM-CM enhanced new bone formation in rat calvarial defects, thus representing a novel 'off-the-shelf' strategy for GBR.
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Affiliation(s)
- Siddharth Shanbhag
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
- Correspondence: (S.S.); (R.G.); Tel.: +47-55586059 (S.S.); +43-(0)69910718472 (R.G.)
| | - Carina Kampleitner
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Niyaz Al-Sharabi
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
| | - Samih Mohamed-Ahmed
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
| | | | - Patrick Heimel
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Stefan Tangl
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Andreas Beinlich
- Department of Earth Science, Faculty of Mathematics and Natural Sciences, University of Bergen, 5009 Bergen, Norway
| | - Neha Rana
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
| | - Mariano Sanz
- ETEP Research Group, Faculty of Odontology, University Complutense of Madrid, 28040 Madrid, Spain
| | - Einar K. Kristoffersen
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, 5021 Bergen, Norway
| | - Kamal Mustafa
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
| | - Reinhard Gruber
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
- Correspondence: (S.S.); (R.G.); Tel.: +47-55586059 (S.S.); +43-(0)69910718472 (R.G.)
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Zhao M, Wen F, Chen G, Xu Y. Computed tomography-guided 125 I radioactive-seed implantation therapy for skull metastasis from hepatocellular carcinoma. Asian J Surg 2023; 46:1031-1032. [PMID: 35961907 DOI: 10.1016/j.asjsur.2022.07.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 07/21/2022] [Indexed: 02/08/2023] Open
Affiliation(s)
- Mengpeng Zhao
- Department of Interventional Vascular Surgery, Binzhou Medical University Hospital, 661 Huanghe Second Road, Binzhou, Shandong Province, 256603, PR China
| | - Feifei Wen
- Department of Pathology, Binzhou Medical University Hospital, 661 Huanghe Second Road, Binzhou, Shandong Province, 256603, PR China
| | - Gang Chen
- Department of Interventional Vascular Surgery, Binzhou Medical University Hospital, 661 Huanghe Second Road, Binzhou, Shandong Province, 256603, PR China
| | - Yingjiang Xu
- Department of Interventional Vascular Surgery, Binzhou Medical University Hospital, 661 Huanghe Second Road, Binzhou, Shandong Province, 256603, PR China.
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Fraleigh R, Wei XC, Yu W, Miettunen PM. Chronic recurrent multifocal osteomyelitis with a comprehensive approach to differential diagnosis of paediatric skull pain. BMJ Case Rep 2023; 16:e252471. [PMID: 36599493 PMCID: PMC9815035 DOI: 10.1136/bcr-2022-252471] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A girl in middle childhood was referred to rheumatology with a 1-month history of progressive skull pain, preceded by fleeting musculoskeletal symptoms. Apart from a scaly rash on her scalp, she was well, with moderately elevated inflammatory markers. Skull imaging (radiographs, CT and MRI) revealed osteolytic lesions, soft tissue swelling and pachymeningeal enhancement at frontal and temporal convexities. Langerhans cell histiocytosis, bone infection/inflammation or malignancy was considered. Skin and bone biopsies eventually ruled out mimicking diseases and confirmed the diagnosis of chronic recurrent multifocal osteomyelitis (CRMO). She was treated with intravenous pamidronate (IVPAM) for 9 months, with rapid resolution of pain and gradual resolution of bony abnormalities. She remains in remission at 15-month follow-up. While CRMO can affect any bone, skull involvement is extremely rare, with a broad differential diagnosis. We recommend bone biopsy to confirm skull CRMO. The patient achieved excellent clinical and radiological response to IVPAM.
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Affiliation(s)
- Ross Fraleigh
- Pediatric Rheumatology, Alberta Children's Hospital, Calgary, Alberta, Canada
- Pediatrics, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Xing-Chang Wei
- Diagnostic Imaging, Alberta Children's Hospital, Calgary, Alberta, Canada
- Pediatrics, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Weiming Yu
- Pediatrics, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Pathology and Laboratory Medicine, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Paivi Maria Miettunen
- Pediatric Rheumatology, Alberta Children's Hospital, Calgary, Alberta, Canada
- Pediatrics, Alberta Children's Hospital, Calgary, Alberta, Canada
- Pediatrics, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
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