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Kastrenopoulou A, Kypreos KE, Papachristou NI, Georgopoulos S, Mastora I, Papadimitriou-Olivgeri I, Spentzopoulou A, Nikitovic D, Kontogeorgakos V, Blair HC, Papachristou DJ. ApoA1 Deficiency Reshapes the Phenotypic and Molecular Characteristics of Bone Marrow Adipocytes in Mice. Int J Mol Sci 2022; 23:4834. [PMID: 35563223 PMCID: PMC9100701 DOI: 10.3390/ijms23094834] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/15/2022] [Accepted: 04/20/2022] [Indexed: 02/05/2023] Open
Abstract
In the present study, we studied the effect of apolipoprotein A-1 (APOA1) on the spatial and molecular characteristics of bone marrow adipocytes, using well-characterized ApoA1 knockout mice. APOA1 is a central regulator of high-density lipoprotein cholesterol (HDL-C) metabolism, and thus HDL; our recent work showed that deficiency of APOA1 increases bone marrow adiposity in mice. We found that ApoA1 deficient mice have greatly elevated adipocytes within their bone marrow compared to wild type counterparts. Morphologically, the increased adipocytes were similar to white adipocytes, and displayed proximal tibial-end localization. Marrow adipocytes from wild type mice were significantly fewer and did not display a bone-end distribution pattern. The mRNA levels of the brown/beige adipocyte-specific markers Ucp1, Dio2, Pat2, and Pgc1a; and the expression of leptin were greatly reduced in the ApoA1 knock-out in comparison to the wild-type mice. In the knock-out mice, adiponectin was remarkably elevated. In keeping with the close ties of hematopoietic stem cells and marrow adipocytes, using flow cytometry we found that the elevated adiposity in the ApoA1 knockout mice is associated with a significant reduction in the compartments of hematopoietic stem cells and common myeloid, but not of the common lymphoid, progenitors. Moreover, the 'beiging'-related marker osteopontin and the angiogenic factor VEGF were also reduced in the ApoA1 knock-out mice, further supporting the notion that APOA1-and most probably HDL-C-regulate bone marrow microenvironment, favoring beige/brown adipocyte characteristics.
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Affiliation(s)
- Afroditi Kastrenopoulou
- Laboratory of Bone and Soft Tissue Studies, Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, School of Medical, University of Patras, 26504 Patras, Greece; (A.K.); (N.I.P.); (S.G.); (I.M.); (I.P.-O.); (A.S.)
| | - Kyriakos E. Kypreos
- Department of Pharmacology, School of Medical, University of Patras, 26504 Patras, Greece;
| | - Nicholaos I. Papachristou
- Laboratory of Bone and Soft Tissue Studies, Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, School of Medical, University of Patras, 26504 Patras, Greece; (A.K.); (N.I.P.); (S.G.); (I.M.); (I.P.-O.); (A.S.)
| | - Stavros Georgopoulos
- Laboratory of Bone and Soft Tissue Studies, Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, School of Medical, University of Patras, 26504 Patras, Greece; (A.K.); (N.I.P.); (S.G.); (I.M.); (I.P.-O.); (A.S.)
| | - Ioulia Mastora
- Laboratory of Bone and Soft Tissue Studies, Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, School of Medical, University of Patras, 26504 Patras, Greece; (A.K.); (N.I.P.); (S.G.); (I.M.); (I.P.-O.); (A.S.)
| | - Ioanna Papadimitriou-Olivgeri
- Laboratory of Bone and Soft Tissue Studies, Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, School of Medical, University of Patras, 26504 Patras, Greece; (A.K.); (N.I.P.); (S.G.); (I.M.); (I.P.-O.); (A.S.)
| | - Argyro Spentzopoulou
- Laboratory of Bone and Soft Tissue Studies, Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, School of Medical, University of Patras, 26504 Patras, Greece; (A.K.); (N.I.P.); (S.G.); (I.M.); (I.P.-O.); (A.S.)
| | - Dragana Nikitovic
- Laboratory of Department of Anatomy-Histology-Embryology, School of Medical, University of Crete, 71110 Heraklion, Greece;
| | - Vassilios Kontogeorgakos
- Department of Orthopeadic Surgery, School of Medicine, University of Athens, 11527 Athens, Greece;
| | - Harry C. Blair
- Pittsburgh VA Medical Center, Pittsburgh, PA 15261, USA
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Dionysios J. Papachristou
- Laboratory of Bone and Soft Tissue Studies, Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, School of Medical, University of Patras, 26504 Patras, Greece; (A.K.); (N.I.P.); (S.G.); (I.M.); (I.P.-O.); (A.S.)
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261, USA
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Petroudi D, Tsagkaris I, Mastrokalos D, Papagelopoulos P, Kontogeorgakos V. Can Initial Hematocrit Predict Blood Transfusions, Hospital Cost, and Mortality in Polytrauma Patients? J Long Term Eff Med Implants 2020; 30:83-86. [PMID: 33426845 DOI: 10.1615/jlongtermeffmedimplants.2020035548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Knowing the initial hematocrit of a polytrauma patient can assist his trauma management. This paper describes a four-year study of 88 polytrauma patients. Fifty-nine were transfused, and eight were women (13.5%). The mean cost of the first hospitalization of patients who were transfused was 14,503 €; the mean cost of patients who were not transfused was 5,718 €. HCT did not correlate with ICU stay; nor did days of hospitalization. The mean HCT of those who died was not much different from that of survivors (33.23 with standard deviation [SD] 7.43 versus 32.37 with SD 5.89). This study showed that initial HCT does not correlate with days of hospitalization or days in ICU, but that transfusion can predict higher total cost.
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Affiliation(s)
- Dimitra Petroudi
- Registered Nurse, Attikon University Hospital of Athens, Athens, Greece
| | - I Tsagkaris
- National and Kapodistrian University of Athens, Department of Critical Care, Athens, Greece
| | - Dimitrios Mastrokalos
- National & Kapodistrian University of Athens, Department of Orthopaedic Surgery, Athens, Greece
| | - P Papagelopoulos
- National & Kapodistrian University of Athens, Department of Orthopaedic Surgery, Athens, Greece
| | - V Kontogeorgakos
- National & Kapodistrian University of Athens, Department of Orthopaedic Surgery, Athens, Greece
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Petroudi D, Tsagkaris I, Mastrokalos D, Galanopoulos I, Galanis P, Papagelopoulos P, Kontogeorgakos V. Polytrauma: Treatment, Cost, and Associated Factors. J Long Term Eff Med Implants 2019; 29:311-316. [PMID: 32749136 DOI: 10.1615/jlongtermeffmedimplants.2020034807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Trauma is a multifactor problem with economic, social, and political burdens. In this article, we estimate its economic extension. This 3-yr study includes 69 patients above 14 yr of age, who experienced multiple traumatic injuries. We review their economic impact on the National Health System of Greece. Mean patient age is 38.91 yr, and most are male (85.5%), nonsmoking (69.6%), and without open fractures (78.3%). As a result of their injuries, most patients (76.8%) stayed in the intensive care unit (ICU), underwent surgery (76.8%), were transfused (68.1%), and became infected (63.8%). Mean cost was 16,365.65€, median cost 10,399.07€, minimum value 554.17€, and maximum value 89,243.52€. Of the 69 patients, 12 died. The number of polytrauma patients is relatively small compared to the total amount of patients in hospital care, but their impact on health services is very high. Patients admitted to the ICU are at great risk of infection, which can almost triple financial cost and increase hospital stay.
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Affiliation(s)
| | - I Tsagkaris
- National and Kapodistrian University of Athens, Department of Critical Care, Athens, Greece
| | - Dimitrios Mastrokalos
- National & Kapodistrian University of Athens, Department of Orthopaedic Surgery, Athens, Greece
| | - I Galanopoulos
- Orthopaedic Surgeon, Thriasio General Hospital of Athens, Athens, Greece
| | - P Galanis
- RN, PhD, National & Kapodistrian University of Athens, Department of Public Health, Athens, Greece
| | - P Papagelopoulos
- National & Kapodistrian University of Athens, Department of Orthopaedic Surgery, Athens, Greece
| | - V Kontogeorgakos
- National & Kapodistrian University of Athens, Department of Orthopaedic Surgery, Athens, Greece
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Lagaras A, Kontogeorgakos V, Varitimidis S, Malizos KN. Treatment outcomes for infected juxta-articular knee nonunions. Hippokratia 2018; 22:183-187. [PMID: 31695306 PMCID: PMC6825418] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
PURPOSE This retrospective case series assessed the results of a treatment protocol for patients with infected para-articular knee nonunions. The aim was to demonstrate that knee function and quality-of-life (QoL) can be improved. CASE SERIES Between January 2001 and December 2011, eleven patients with septic proximal tibial nonunion and seven with septic distal femoral nonunion were managed at our institution. The treatment protocol included extensive debridement, skeletal stabilization, culture-specific antibiotic administration, and soft-tissue and bone-deficit reconstruction. Knee function was evaluated with the Knee Society Score (KSS) while the Knee injury and Osteoarthritis Outcome Score (KOOS) and SF-12 were used for QoL assessment at a mean follow-up of 37.2 (range: 12-149) months. Seventeen nonunions healed at a mean of 21.9 weeks. One patient needed above knee amputation. Knee Society function and knee scores were improved significantly, from 16.7 and 33.8, to 75.0 and 84.9 respectively (p <0.001). KOOS outcome and SF-12 physical and mental components scores confirmed the QoL improvement. CONCLUSIONS Staged management can improve QoL and functional knee outcome. HIPPOKRATIA 2018, 22(4): 183-187.
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Affiliation(s)
- A Lagaras
- Department of Orthopedics, University Hospital of Larissa, Larissa, Greece
| | - V Kontogeorgakos
- First Department of Orthopedics, "ATTIKON" University General Hospital, Athens, Greece
| | - S Varitimidis
- Department of Orthopedics, University Hospital of Larissa, Larissa, Greece
| | - K N Malizos
- Department of Orthopedics, University Hospital of Larissa, Larissa, Greece
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Manoudis G, Mitsionis G, Kontogeorgakos V, Kordalis N, Sionti I, Xenakis T. R2318 Pyomyositis in children. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)72157-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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