1
|
Ancuţa DL, Alexandru DM, Crivineanu M, Coman C. Induction of Experimental Peri-Implantitis with Strains Selected from the Human Oral Microbiome. Biomedicines 2024; 12:715. [PMID: 38672071 PMCID: PMC11048198 DOI: 10.3390/biomedicines12040715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/06/2024] [Accepted: 03/15/2024] [Indexed: 04/28/2024] Open
Abstract
Peri-implantitis (PI), the most widespread condition in the oral cavity, affects patients globally; thus, advanced research in both in vitro and in vivo studies is required. This study aimed to develop peri-implantitis in the rat model by oral contamination with bacteria responsible for PI in humans. The study was carried out in three stages: the extraction of the maxillary first molar to reproduce the human edentation, the mounting of the implant, and finally, the contamination of the device by gavage with Aggregatibacter actinomycetemcomitans, Fusobacterium nucleatum and Streptococcus oralis. The hematological examinations showed statistically significant increases for WBCs (white blood cells), Hb (hemoglobin), RBCs (red blood cells), MCH (mean corpuscular hemoglobin), MCHC (mean corpuscular hemoglobin concentration), and PLTs (platelets), but especially for the level of neutrophils and lymphocytes, and the systemic immunoinflammatory index completed the picture related to the inflammatory response triggered as a result of the activity of microorganisms pathogens on oral tissues. By examining the liver and kidney profile, we hypothesized that peri-implantitis is associated with systemic diseases, and the histopathological examination showed peri-implantitis lesions characterized by a marked inflammatory infiltrate with numerous neutrophils and lymphocytes. By corroborating all the results, we successfully developed a rat peri-implantitis model using a mixed bacterial infection through the oral gavage technique.
Collapse
Affiliation(s)
- Diana Larisa Ancuţa
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania; (D.L.A.); (M.C.); (C.C.)
- Cantacuzino National Medical Military Institute for Research and Development, 050096 Bucharest, Romania
| | - Diana Mihaela Alexandru
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania; (D.L.A.); (M.C.); (C.C.)
| | - Maria Crivineanu
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania; (D.L.A.); (M.C.); (C.C.)
| | - Cristin Coman
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania; (D.L.A.); (M.C.); (C.C.)
- Cantacuzino National Medical Military Institute for Research and Development, 050096 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
| |
Collapse
|
2
|
Ancuta DL, Alexandru DM, Crivineanu M, Coman C. Induction of Periodontitis Using Bacterial Strains Isolated from the Human Oral Microbiome in an Experimental Rat Model. Biomedicines 2023; 11:2098. [PMID: 37626595 PMCID: PMC10452127 DOI: 10.3390/biomedicines11082098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/07/2023] [Accepted: 07/12/2023] [Indexed: 08/27/2023] Open
Abstract
Periodontal disease is that condition resulting in the destruction of periodontal tissues, bone resorption, and tooth loss, the etiology of which is linked to immunological and microbiological factors. The aim of this study was to evaluate the potential trigger of periodontal disease in a rat model using bacterial species incriminated in the pathology of human periodontitis and to establish their optimal concentrations capable of reproducing the disease, with the idea of subsequently developing innovative treatments for the condition. In this study, we included 15 male Wistar rats, aged 20 weeks, which we divided into three groups. In each group, we applied ligatures with gingival retraction wire on the maxillary incisors. The ligature and the gingival sac were contaminated by oral gavage with a mixture of fresh cultures of Aggregatibacter actinomycetemcomitans (A.a), Fusobacterium nucleatum (F.n) and Streptococcus oralis (S.o) in concentrations of 108, 109, and 1010 CFU/mL each for 5 days a week for 4 weeks. During the clinical monitoring period of 28 days, overlapped with the period of oral contamination, we followed the expression of clinical signs specific to periodontitis. We also monitored the evolution of body weight and took weekly samples from the oral cavity for the microbiological identification of the tested bacteria and blood samples for hematological examination. At the end of the study, the animals were euthanized, and the ligated incisors were taken for histopathological analysis. The characteristic symptomatology of periodontal disease was expressed from the first week of the study and was maintained until the end, and we were able to identify the bacteria during each examination. Hematologically, the number of neutrophils decreased dramatically (p < 0.0001) in the case of the 109 group, unlike the other groups, as did the number of lymphocytes. Histopathologically, we identified neutrophilic infiltrate in all groups, as well as the presence of coccobacilli, periodontal tissue hyperplasia, and periodontal lysis. In the 109 group, we also observed pulpal tissue with necrotic bone fragments and pyogranulomatous inflammatory reaction. By corroborating the data, we can conclude that for the development of periodontal disease using A.a, F.n, and S.o, a concentration of 109 or 1010 CFU/mL is required, which must necessarily contaminate a ligature thread applied to the level of the rat's dental pack.
Collapse
Affiliation(s)
- Diana Larisa Ancuta
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania; (D.M.A.); (M.C.); (C.C.)
- Cantacuzino National Medical Military Institute for Research and Development, 050096 Bucharest, Romania
| | - Diana Mihaela Alexandru
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania; (D.M.A.); (M.C.); (C.C.)
| | - Maria Crivineanu
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania; (D.M.A.); (M.C.); (C.C.)
| | - Cristin Coman
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania; (D.M.A.); (M.C.); (C.C.)
- Cantacuzino National Medical Military Institute for Research and Development, 050096 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
| |
Collapse
|
3
|
Florea CG, Cristian DA, Coman IS, Coman C, Soare T, Erchid A, Pleşea IE, Liţescu M, Grigorean VT. Meropenem antibiotic therapy in acute secondary peritonitis, therapeutic effects superior to other therapies - experimental clinical and histopathological study in the laboratory animal. Rom J Morphol Embryol 2022; 63:615-623. [PMID: 36808196 PMCID: PMC10026927 DOI: 10.47162/rjme.63.4.03] [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] [Indexed: 02/23/2023]
Abstract
AIM A perforated peptic ulcer is the most common cause of peritonitis through the perforation of the digestive tube, which occurs in a percentage between 2% and 14% of patients diagnosed with peptic ulcer and being associated with a 10% to 30% mortality rate. MATERIALS AND METHODS Considering the above, we imagined a study, using laboratory animals, in which we produced gastric perforations, then followed their evolution without antibiotic treatment and under antibiotic therapy with Cefuroxime 25 mg∕kg∕24 hours intravenously or Meropenem 40 mg∕kg∕24 hours intravenously, following the tissue changes both macroscopically and microscopically. RESULTS The study revealed a mortality of 36.6%, most deaths (81.82%) occurred in the first 24 hours after the perforation, all subjects belonging to the group that did not receive antibiotic treatment and the group treated with Cefuroxime. From a clinical point of view (evaluation of the general condition), macroscopically and microscopically, a better evolution of the subjects who received antibiotic therapy can be observed, compared to those who did not receive antibiotic therapy, thus in the case of subjects who received antibiotic therapy, the absence or the presence of a small amount of intraperitoneal fluid, which has a serocitrine appearance, as well as the absence of macroscopic changes at the level of unaffected intraperitoneal organs, can be observed. Microscopically, it can be seen that in the subjects treated with Meropenem, changes in the parietal peritoneum were minimal. CONCLUSIONS Antibiotic therapy with Meropenem in acute peritonitis has a survival rate comparable to peritoneal lavage and source control.
Collapse
Affiliation(s)
- Costin George Florea
- Departments of Surgery, Faculty of Dentistry, Carol Davila University of Medicine and Pharmacy, and Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania; ; Doctoral School, Carol Davila University of Medicine and Pharmacy, and Department of Pathology, Bagdasar-Arseni Emergency Clinical Hospital, Bucharest, Romania;
| | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Doeppner TR, Coman C, Burdusel D, Ancuta DL, Brockmeier U, Pirici DN, Yaoyun K, Hermann DM, Popa-Wagner A. Long-term treatment with chloroquine increases lifespan in middle-aged male mice possibly via autophagy modulation, proteasome inhibition and glycogen metabolism. Aging (Albany NY) 2022; 14:4195-4210. [PMID: 35609021 PMCID: PMC9186778 DOI: 10.18632/aging.204069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 04/28/2022] [Indexed: 11/25/2022]
Abstract
Previous studies have shown that the polyamine spermidine increased the maximum life span in C. elegans and the median life span in mice. Since spermidine increases autophagy, we asked if treatment with chloroquine, an inhibitor of autophagy, would shorten the lifespan of mice. Recently, chloroquine has intensively been discussed as a treatment option for COVID-19 patients. To rule out unfavorable long-term effects on longevity, we examined the effect of chronic treatment with chloroquine given in the drinking water on the lifespan and organ pathology of male middle-aged NMRI mice. We report that, surprisingly, daily treatment with chloroquine extended the median life span by 11.4% and the maximum life span of the middle-aged male NMRI mice by 11.8%. Subsequent experiments show that the chloroquine-induced lifespan elevation is associated with dose-dependent increase in LC3B-II, a marker of autophagosomes, in the liver and heart that was confirmed by transmission electron microscopy. Quite intriguingly, chloroquine treatment was also associated with a decrease in glycogenolysis in the liver suggesting a compensatory mechanism to provide energy to the cell. Accumulation of autophagosomes was paralleled by an inhibition of proteasome-dependent proteolysis in the liver and the heart as well as with decreased serum levels of insulin growth factor binding protein-3 (IGFBP3), a protein associated with longevity. We propose that inhibition of proteasome activity in conjunction with an increased number of autophagosomes and decreased levels of IGFBP3 might play a central role in lifespan extension by chloroquine in male NMRI mice.
Collapse
Affiliation(s)
- Thorsten R Doeppner
- Department of Neurology, University Medical Center Göttingen, Göttingen 37075, Germany.,Research Institute for Health Sciences and Technologies (SABITA), Medipol University, Istanbul, Turkey.,Department of Anatomy and Cell Biology, Medical University of Varna, Varna, Bulgaria
| | - Cristin Coman
- Cantacuzino National Medico-Military Institute for Research and Development, Bucharest 050096, Romania
| | - Daiana Burdusel
- Department of Biochemistry, University of Medicine and Pharmacy Craiova, Craiova 200349, Romania
| | - Diana-Larisa Ancuta
- Cantacuzino National Medico-Military Institute for Research and Development, Bucharest 050096, Romania.,Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, Bucharest, Romania
| | - Ulf Brockmeier
- Vascular Neurology and Dementia, Department of Neurology, University of Medicine Essen, Essen 45147, Germany
| | - Daniel Nicolae Pirici
- Department of Biochemistry, University of Medicine and Pharmacy Craiova, Craiova 200349, Romania
| | - Kuang Yaoyun
- Department of Neurology, University Medical Center Göttingen, Göttingen 37075, Germany
| | - Dirk M Hermann
- Vascular Neurology and Dementia, Department of Neurology, University of Medicine Essen, Essen 45147, Germany
| | - Aurel Popa-Wagner
- Vascular Neurology and Dementia, Department of Neurology, University of Medicine Essen, Essen 45147, Germany.,Experimental Research Center for Normal and Pathological Aging, ARES, University of Medicine and Pharmacy Craiova, Craiova 200349, Romania
| |
Collapse
|
5
|
Călin C, Sajin M, Moldovan VT, Coman C, Stratul SI, Didilescu AC. Immunohistochemical expression of non-collagenous extracellular matrix molecules involved in tertiary dentinogenesis following direct pulp capping: a systematic review. Ann Anat 2021; 235:151674. [PMID: 33400977 DOI: 10.1016/j.aanat.2020.151674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/21/2020] [Accepted: 12/07/2020] [Indexed: 01/26/2023]
Abstract
BACKGROUND Extracellular matrix molecules (ECMM) expression during tertiary dentinogenesis provides useful information for regenerative applications and efficacy of pulp capping materials. AIM To identify and review the expression and roles of non-collagenous ECMM after successful direct pulp capping (DPC), following mechanical pulp exposures, via immunohistochemistry (IHC). The study addressed the question of where will successful DPC impact the IHC expression of these molecules. DATA SOURCES In vivo animal and human original clinical studies reporting on ECMM in relation to different follow-up periods were screened and evaluated via descriptive analysis. The electronic literature search was carried out in three databases (MEDLINE/PubMed, Web of Science, Scopus), followed by manual screening of relevant journals and cross-referencing, up to December 2018. STUDY ELIGIBILITY CRITERIA, PARTICIPANTS, AND INTERVENTIONS Randomized and non-randomized controlled trials, conducted in humans and animals, were selected. Histological evidence for tertiary dentine formation was a prerequisite for IHC evaluation. STUDY APPRAISAL AND SYNTHESIS METHODS The methodological quality of the included articles was independently assessed using the Systematic Review Centre for Laboratory animal Experimentation (SYRCLE) and the Cochrane risk of bias tool (RoB 1), respectively. RESULTS From a total of 1534 identified studies, 18 were included. Thirteen papers evaluated animal subjects and five studies were carried out on humans. In animals and humans, fibronectin and tenascin expressions were detected in pulp and odontoblast-like cells (OLC); dentine sialoprotein was expressed in both soft and newly-formed mineralized tissue. In animals, bone sialoprotein was early expressed, in association with OLC and predentin; the immunoreactivity for dentine sialophosphoprotein and dentine matrix protein-1 was associated with the OLC and dentine bridge; osteopontin was expressed in OLC, predentine and reparative dentine. A considerable heterogeneity was found in the methodologies of the included studies, as well as interspecies variability of results in terms of time. CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS Within the limited scientific evidence, all non-collagenous ECMM expressions during tertiary dentinogenesis are active and related to soft and hard tissues. There is a shortage of human studies, and future research directions should focus more on them. PROSPERO Protocol: CRD42019121304.
Collapse
Affiliation(s)
- C Călin
- Division of Embryology, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Romania
| | - M Sajin
- Chair of Pathology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Romania
| | - V T Moldovan
- Department of Pathology, Victor Babes National Institute of Pathology, Bucharest, Romania
| | - C Coman
- Preclinical Testing Unit, Cantacuzino National Medico-Military Institute for Research and Development, Bucharest, Romania
| | - S I Stratul
- Department of Periodontology, Faculty of Dental Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - A C Didilescu
- Division of Embryology, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Romania.
| |
Collapse
|
6
|
Michel L, Hendgen-Cotta U, Mincu R, Helfrich I, Korste S, Mrotzek S, Rischpler C, Herrmann K, Ugurel S, Zimmer L, Coman C, Ahrends R, Schadendorf D, Rassaf T, Totzeck M. Preclinical and clinical assessment of immune checkpoint inhibitor-associated left ventricular dysfunction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Immune checkpoint inhibitor (ICI) therapy has improved treatment of advanced cancers but is associated with yet incompletely characterized cardiotoxic side effects. While inflammatory cardiac complications were initially described as a rare phenomenon, emerging evidence indicates frequent cardiotoxicity, particularly latent left ventricular (LV) dysfunction. Distinct clinical characteristics and potential pathomechanisms are so far unknown.
Purpose
This study aims to investigate incidence and frequency of LV dysfunction in patients receiving ICI therapy for malignant melanoma. Using a suitable melanoma mouse model, ICI-related cardiotoxicity will be reenacted to identify potential underlying pathomechanisms.
Methods
Patients receiving ICI therapy for stage IV melanoma that presented in our cardio-oncology unit were evaluated at baseline and four weeks after initiation of therapy including echocardiography, cardiac biomarkers, and dobutamine stress echocardiography in the absence of contraindications. Patients with decreased LV ejection fraction (LVEF) were further evaluated by 18-fludeoxyglucose PET-MRI to assess manifest myocarditis. To elucidate underlying pathomechanisms, we established a melanoma mouse model that showed profound response to anti-programmed death 1 (PD1) ICI therapy. Immune cell infiltration was assessed by flow cytometry and light sheet fluorescence microscopy. Myocardial biochemical function was analyzed using a multi-omics mass spectrometry-based approach.
Results
Seven patients were included to the analysis. Six patients received a combination ICI therapy with ipilimumab and nivolumab, and one patient received nivolumab monotherapy. Echocardiography revealed significantly decreased 3D-LVEF after 4 weeks of therapy in treated patients (p=0.021). A reduced global longitudinal strain was found in six of seven patients. Remarkably, dobutamine stress echocardiography revealed a more pronounced LVEF-decrease (p=0.009) as a sign for impaired myocardial contractility with a mean decrease of 5 percentage points. Using the melanoma mouse model, we were able to recapitulate the disease phenotype as indicated by decreased LVEF and impaired response to inotropic stress during mouse pressure/volume catheterization. Increased concentrations of intramyocardial CD4+ and CD8+ T cells were found in mice treated with anti-PD1 ICI therapy compared to controls (p=0.01). Mass spectrometry revealed disrupted energy metabolism and calcium homeostasis as a putative underlying pathomechanism for impaired myocardial function.
Conclusions
ICI-related left ventricular dysfunction may affect a large proportion of patients and potentially increase cardiac morbidity and mortality. Preclinical data proposes myocardial lymphocyte infiltration and disruption of cardiomyocyte metabolism as the underlying pathomechanism. Prospective studies are now needed for a further characterization of this novel form of ICI-related cardiotoxicity.
Funding Acknowledgement
Type of funding source: Public hospital(s). Main funding source(s): IFORES research grant, Medical Faculty, University Duisburg-Essen, Germany
Collapse
Affiliation(s)
- L Michel
- University of Duisburg-Essen - West-German Heart and Vascular Center, Department of Cardiology and Vascular Medicine, Essen, Germany
| | - U.B Hendgen-Cotta
- University of Duisburg-Essen - West-German Heart and Vascular Center, Department of Cardiology and Vascular Medicine, Essen, Germany
| | - R.I Mincu
- University of Duisburg-Essen - West-German Heart and Vascular Center, Department of Cardiology and Vascular Medicine, Essen, Germany
| | - I Helfrich
- University Hospital Essen, Department of Dermatology, Essen, Germany
| | - S Korste
- University of Duisburg-Essen - West-German Heart and Vascular Center, Department of Cardiology and Vascular Medicine, Essen, Germany
| | - S.M Mrotzek
- University of Duisburg-Essen - West-German Heart and Vascular Center, Department of Cardiology and Vascular Medicine, Essen, Germany
| | - C Rischpler
- University Hospital Essen, Department of Nuclear Medicine, Essen, Germany
| | - K Herrmann
- University Hospital Essen, Department of Nuclear Medicine, Essen, Germany
| | - S Ugurel
- University Hospital Essen, Department of Dermatology, Essen, Germany
| | - L Zimmer
- University Hospital Essen, Department of Dermatology, Essen, Germany
| | - C Coman
- University of Vienna, Institute for Analytical Chemistry, Vienna, Austria
| | - R Ahrends
- University of Vienna, Institute for Analytical Chemistry, Vienna, Austria
| | - D Schadendorf
- University Hospital Essen, Department of Dermatology, Essen, Germany
| | - T Rassaf
- University of Duisburg-Essen - West-German Heart and Vascular Center, Department of Cardiology and Vascular Medicine, Essen, Germany
| | - M Totzeck
- University of Duisburg-Essen - West-German Heart and Vascular Center, Department of Cardiology and Vascular Medicine, Essen, Germany
| |
Collapse
|
7
|
Bottagisio M, Coman C, Lovati AB. Animal models of orthopaedic infections. A review of rabbit models used to induce long bone bacterial infections. J Med Microbiol 2019; 68:506-537. [PMID: 30875284 DOI: 10.1099/jmm.0.000952] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The development of infections is one of the main complications in orthopaedics, especially in the presence of implants for the osteosynthesis of compound fractures and joint prosthesis. Indeed, foreign materials and implants act as substrates for the adhesion and proliferation of bacterial strains able to produce biofilm, causing peri-implant osteomyelitis. The eradication of biofilm remains a great challenge for the host immune system, as well as for medical and surgical approaches, thus imposing the need for new prophylactic and/or therapeutic strategies in which animal models have an essential role. In vivo orthopaedic models have mainly been used to study the pathogenesis of infections, biofilm behaviour and the efficacy of antimicrobial strategies, to select diagnostic techniques and test the efficacy of novel materials or surface modifications to impede both the establishment of bone infections and the associated septic loosening of implants. Among several models of osteomyelitis and implant-related infections described in small rodents and large animals, the rabbit has been widely used as a reliable and reproducible model of orthopaedic infections. This review examines the relevance of rabbits for the development of clinically representative models by analysing the pros and cons of the different approaches published in the literature. This analysis will aid in increasing our knowledge concerning orthopaedic infections by using this species. This review will be a tool for researchers who need to approach pre-clinical studies in the field of bone infection and have to identify the most appropriate animal model to verify their scientific hypothesis.
Collapse
Affiliation(s)
- Marta Bottagisio
- Laboratory of Clinical Chemistry and Microbiology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | - Cristin Coman
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest, Romania
| | - Arianna B Lovati
- Cell and Tissue Engineering Laboratory, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| |
Collapse
|
8
|
Surdu-Bob CC, Vlase E, Barbuceanu F, Turcu D, Coman M, Badulescu M, Oporanu M, Coman C. Copper Bead Therapy in Severe Bone Infection: A Rabbit Tibial Model. Vet Comp Orthop Traumatol 2019; 32:41-50. [PMID: 30646410 DOI: 10.1055/s-0038-1676292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVE We investigated the benefits of a local preventive therapy based on copper beads against severe bone infection using a rabbit open tibial fracture model. MATERIALS AND METHODS Cotton mesh balls soaked in a very high concentration of Staphylococcus aureus ATCC 6538 culture were inoculated in drilled holes of the tibiae of treated and control groups. The treated group was also implanted with small copper beads simultaneously, as prevention therapy. RESULTS Survival rate in the treated group was 67% compared with 25% in the control group (difference 40%, for a 95% confidence interval: 40%, 93.4%). The few remaining animals in the control group had bone lesions which developed into osteomyelitis, while the tibiae of treated group had clear signs of reparatory processes. Sixty days after inoculation, signs of local-only toxicity were observed in healthy tibia of a separate non-infected control group. Drawbacks of copper toxicity were weighed against the threat of septicaemia and also against prolonged use of powerful systemic antibiotic medications in severe bone contamination. CINICAL SIGNIFICANCE It was found that the proposed therapy prevented septicaemia and the spread of infection, and it also induced reparatory processes. The findings of this study may be relevant in antisepsis of open fractures in less appropriate medical settings (such as military camps or remote locations), as well as in severe bone infections.
Collapse
Affiliation(s)
- Carmen C Surdu-Bob
- Low Temperature Plasma Laboratory, National Institute for Lasers, Plasma and Radiation Physics, Magurele, Romania
| | - Ene Vlase
- Unit of Animal Experimentation "Cantacuzino" National Institute for Medico-Military Research and Development, Bucharest, Romania
| | - Florica Barbuceanu
- Department of Morphopathology, Institute for Diagnosis and Animal Health, Bucharest, Romania
| | - Danut Turcu
- "Spiru Haret" University, Veterinary Medicine Faculty, Bucharest, Romania
| | - Mariana Coman
- Department of Radiology, Marie Sklodowska Curie Children's Hospital, Bucharest, Romania
| | - Marius Badulescu
- Low Temperature Plasma Laboratory, National Institute for Lasers, Plasma and Radiation Physics, Magurele, Romania
| | | | - Cristin Coman
- Unit of Animal Experimentation "Cantacuzino" National Institute for Medico-Military Research and Development, Bucharest, Romania
| |
Collapse
|
9
|
Coman IS, Florea CG, Gheorghiţă D, Coman C, Dinu AI, Coman EV, Porojan VA, David OI, Bedereag ŞI, Sfetea RC, Ciuvică-Tănăsescu SG, Gorecki GP, Grigorean VT, Beuran M. Histopathological elements analyzed in dynamics in mechanical bowel obstructions - experimental study on laboratory animals. Rom J Morphol Embryol 2019; 60:589-599. [PMID: 31658333] [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] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bowel obstruction is a syndrome that produces important alterations to the digestive tract, both macroscopically and microscopically. We conducted an experimental study using rats, Wistar strain, as subjects, dividing them into three groups. The group A consisted of six rats and served as control group, in the first day of the experiment a surgical procedure being performed to resect a small bowel and a colic segment to be analyzed microscopically afterwards. The 10 subjects from group B underwent a surgical procedure, in which we induced a mechanical bowel obstruction in the sigmoid colon, while to the 10 subjects from group C we induced a mechanical bowel obstruction in the small bowel. The initial protocol implied to observe the macroscopic modifications from five subjects from each group B and C after two days and afterwards to resect the digestive tract segment adjacent to the obstruction site. After another two days, a similar procedure was planned for the remaining subjects alive from both groups. A few subjects from group C died prematurely and the initial protocol had to be partially modified. The results highlighted an important distension of the digestive tract proximal to the obstruction, with important microscopically reactions, including edema, thrombosis, ischemic lesions and accumulation of polymorphonuclear neutrophils (PMN) and macrophages.
Collapse
Affiliation(s)
- Ionuţ Simion Coman
- Department of Surgery, "Carol Davila" University of Medicine and Pharmacy, Department of General Surgery, "Bagdasar-Arseni" Emergency Clinical Hospital, Bucharest, Romania;
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Cecoltan S, Stancu IC, Drăguşin DM, Serafim A, Lungu A, Ţucureanu C, Caraş I, Tofan VC, Sălăgeanu A, Vasile E, Mallet R, Chappard D, Coman C, Istodorescu M, Iovu H. Nanocomposite particles with improved microstructure for 3D culture systems and bone regeneration. J Mater Sci Mater Med 2017; 28:153. [PMID: 28861646 DOI: 10.1007/s10856-017-5966-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/19/2017] [Indexed: 06/07/2023]
Abstract
Nano-apatite and gelatin-alginate hydrogel microparticles have been prepared by a one-step synthesis combined with electrostatic bead generation, for the reconstruction of bone defects. Based on the analysis of bone composition, architecture and embryonic intramembranous ossification, a bio-inspired fabrication has been developed. Accordingly, the mineral phase has been in situ synthesized, calcifying the hydrogel matrix while the latter was crosslinked, finally generating microparticles that can assemble into a bone defect to ensure interconnected pores. Although nano-apatite-biopolymer composites have been widely investigated, microstructural optimization to provide improved distribution and stability of the mineral is rarely achieved. The optimization of the developed method progressively resulted in two types of formulations (15P and 7.5P), with 15 and 7.5 (wt%) phosphate content in the initial precursor. The osteolytic potential was investigated using differentiated macrophages. A commercially available calcium phosphate bone graft substitute (Eurocer 400) was incorporated into the hydrogel, and the obtained composites were in vitro tested for comparison. The cytocompatibility of the microparticles was studied with mouse osteoblast-like cell line MC3T3-E1. Results indicated the best in vitro performance have been obtained for the sample loaded with 7.5P. Preliminary evaluation of biocompatibility into a critical size (3 mm) defect in rabbits showed that 7.5P nanocomposite is associated with newly formed bone in the proximity of the microparticles, after 28 days.
Collapse
Affiliation(s)
- Sergiu Cecoltan
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Izabela-Cristina Stancu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania.
- Faculty of Medical Engineering, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania.
| | - Diana Maria Drăguşin
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
- Faculty of Medical Engineering, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Andrada Serafim
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Adriana Lungu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
- Faculty of Medical Engineering, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Cătălin Ţucureanu
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Iuliana Caraş
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Vlad Constantin Tofan
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Aurora Sălăgeanu
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Eugeniu Vasile
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Romain Mallet
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux-LabCom NextBone, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933 ANGERS, Cedex, France
| | - Daniel Chappard
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux-LabCom NextBone, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933 ANGERS, Cedex, France
- SCIAM, Service Commun d'Imagerie et Analyses Microscopiques, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933 ANGERS, Cedex, France
| | - Cristin Coman
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Mircea Istodorescu
- S.C. Medical Ortovit S.R.L., 8 Miron Costin, Sector 1, Bucharest, Romania
| | - Horia Iovu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, Bucharest, 050094, Romania
| |
Collapse
|
11
|
Coman C, Gonciarov M. Epidemiological prerequisites for obtaining the status of free country by classical swine fever from the world organization for animal health. J Biotechnol 2017. [DOI: 10.1016/j.jbiotec.2017.06.962] [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: 11/17/2022]
|
12
|
Dina NE, Zhou H, Colniţă A, Leopold N, Szoke-Nagy T, Coman C, Haisch C. Rapid single-cell detection and identification of pathogens by using surface-enhanced Raman spectroscopy. Analyst 2017; 142:1782-1789. [DOI: 10.1039/c7an00106a] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
For the successful treatment of infections, real-time analysis and enhanced multiplex capacity, sensitivity and cost-effectiveness of the developed detection method are critical.
Collapse
Affiliation(s)
- N. E. Dina
- Department of Molecular and Biomolecular Physics
- National Institute of R&D of Isotopic and Molecular Technologies
- Cluj-Napoca 400293
- Romania
| | - H. Zhou
- Department of Pharmacy and Guangdong Province Key Laboratory of Pharmacodynamic of Traditional Chinese Medicine & New Drug Research
- Jinan University
- Guangzhou
- China
| | - A. Colniţă
- Department of Molecular and Biomolecular Physics
- National Institute of R&D of Isotopic and Molecular Technologies
- Cluj-Napoca 400293
- Romania
| | - N. Leopold
- Faculty of Physics
- Babeş-Bolyai University
- Cluj-Napoca 400084
- Romania
| | - T. Szoke-Nagy
- Department of Molecular and Biomolecular Physics
- National Institute of R&D of Isotopic and Molecular Technologies
- Cluj-Napoca 400293
- Romania
- Faculty of Biology and Geology
| | - C. Coman
- Institute of Biological Research Cluj-Napoca
- Branch of the National Institute of Research and Development for Biological Sciences Bucharest
- Cluj-Napoca 400015
- Romania
| | - C. Haisch
- Chair for Analytical Chemistry
- Institute of Hydrochemistry
- Technische Universität München
- Munich 81377
- Germany
| |
Collapse
|
13
|
Surdu-Bob CC, Coman C, Barbuceanu F, Turcu D, Bercaru N, Badulescu M. The influence of foreign body surface area on the outcome of chronic osteomyelitis. Med Eng Phys 2016; 38:870-6. [DOI: 10.1016/j.medengphy.2016.04.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 03/04/2016] [Accepted: 04/28/2016] [Indexed: 10/21/2022]
|
14
|
Stavaru C, Onu A, Lupulescu E, Tucureanu C, Rasid O, Vlase E, Coman C, Caras I, Ghiorghisor A, Berbecila L, Tofan V, Bowen RA, Marlenee N, Hartwig A, Bielefeldt-Ohmann H, Baldwin SL, Van Hoeven N, Vedvick TS, Huynh C, O'Hara MK, Noah DL, Fox CB. Technology transfer of oil-in-water emulsion adjuvant manufacturing for pandemic influenza vaccine production in Romania: Preclinical evaluation of split virion inactivated H5N1 vaccine with adjuvant. Hum Vaccin Immunother 2015; 12:1009-26. [PMID: 26618392 DOI: 10.1080/21645515.2015.1111495] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Millions of seasonal and pandemic influenza vaccine doses containing oil-in-water emulsion adjuvant have been administered in order to enhance and broaden immune responses and to facilitate antigen sparing. Despite the enactment of a Global Action Plan for Influenza Vaccines and a multi-fold increase in production capabilities over the past 10 years, worldwide capacity for pandemic influenza vaccine production is still limited. In developing countries, where routine influenza vaccination is not fully established, additional measures are needed to ensure adequate supply of pandemic influenza vaccines without dependence on the shipment of aid from other, potentially impacted first-world countries. Adaptation of influenza vaccine and adjuvant technologies by developing country influenza vaccine manufacturers may enable antigen sparing and corresponding increases in global influenza vaccine coverage capacity. Following on previously described work involving the technology transfer of oil-in-water emulsion adjuvant manufacturing to a Romanian vaccine manufacturing institute, we herein describe the preclinical evaluation of inactivated split virion H5N1 influenza vaccine with emulsion adjuvant, including immunogenicity, protection from virus challenge, antigen sparing capacity, and safety. In parallel with the evaluation of the bioactivity of the tech-transferred adjuvant, we also describe the impact of concurrent antigen manufacturing optimization activities. Depending on the vaccine antigen source and manufacturing process, inclusion of adjuvant was shown to enhance and broaden functional antibody titers in mouse and rabbit models, promote protection from homologous virus challenge in ferrets, and facilitate antigen sparing. Besides scientific findings, the operational lessons learned are delineated in order to facilitate adaptation of adjuvant technologies by other developing country institutes to enhance global pandemic influenza preparedness.
Collapse
Affiliation(s)
- Crina Stavaru
- a Cantacuzino National Research Institute , Bucharest , Romania
| | - Adrian Onu
- a Cantacuzino National Research Institute , Bucharest , Romania
| | | | | | - Orhan Rasid
- a Cantacuzino National Research Institute , Bucharest , Romania
| | - Ene Vlase
- a Cantacuzino National Research Institute , Bucharest , Romania
| | - Cristin Coman
- a Cantacuzino National Research Institute , Bucharest , Romania
| | - Iuliana Caras
- a Cantacuzino National Research Institute , Bucharest , Romania
| | | | | | - Vlad Tofan
- a Cantacuzino National Research Institute , Bucharest , Romania
| | - Richard A Bowen
- b Department of Biomedical Sciences , Colorado State University , Fort Collins , CO , USA
| | - Nicole Marlenee
- b Department of Biomedical Sciences , Colorado State University , Fort Collins , CO , USA
| | - Airn Hartwig
- b Department of Biomedical Sciences , Colorado State University , Fort Collins , CO , USA
| | - Helle Bielefeldt-Ohmann
- c Australian Infectious Diseases Research Centre, University of Queensland , Brisbane , Australia
| | - Susan L Baldwin
- d Infectious Disease Research Institute , Seattle , WA , USA
| | - Neal Van Hoeven
- d Infectious Disease Research Institute , Seattle , WA , USA
| | | | - Chuong Huynh
- e Biomedical Advanced Research and Development Authority, U.S. Dept of Health and Human Services , Washington, DC , USA
| | - Michael K O'Hara
- e Biomedical Advanced Research and Development Authority, U.S. Dept of Health and Human Services , Washington, DC , USA
| | - Diana L Noah
- f Southern Research Institute , Birmingham , AL , USA
| | | |
Collapse
|
15
|
Coman C, Gonciarov M. Risk analysis correlated with risk factors on etiology and epidemiology of bluetongue. J Biotechnol 2015. [DOI: 10.1016/j.jbiotec.2015.06.113] [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: 11/28/2022]
|
16
|
Gonciarov M, Coman C. Achieving a risk analysis for products derived from genetically modified organisms, in terms of food safety. J Biotechnol 2015. [DOI: 10.1016/j.jbiotec.2015.06.237] [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: 10/23/2022]
|
17
|
Ghetu N, Danciu M, Coman C, Morarasu S, Lupascu C. LOP19. Plast Reconstr Surg 2015. [DOI: 10.1097/01.prs.0000470711.04471.0b] [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: 11/25/2022]
|
18
|
Sandu RE, Uzoni A, Coman C, Popa-Wagner A. Cerebral ischemia in the aged. Limited anti-inflammatory efficacy of the indomethacin treatment. Rom J Morphol Embryol 2015; 56:1111-1117. [PMID: 26662147] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Ischemic stroke is a disease of aging and causes high mortality or long-term disability. Diminished neurological recovery after stroke in aged subjects is possibly associated with exaggerated non-specific inflammatory reaction. The focus of the present study was on neurobiological and behavioral differences between young and old rats modulated by indomethacin daily treatment starting at four hours after acute cerebral ischemia in animal model. Our results indicate age-independent positive consequences of non-specific inhibition of inflammation by indomethacin including increased NeuN-positive surviving neurons, reduced infarct volume and enhanced neuroprotective response of innate immune system evidenced by increased Iba1 and Anx3 immunoreactivities and moderately activated microglia in the peri-infarcted area. Quite relevantly, the efficacy of therapy with indomethacin was reduced. In the aged rats, specifically indomethacin is ineffective in inhibiting phagocytic activity, which is probably due failure of the aged brain to up-regulate the expression of several cytokines including TNFα and Cxcl4. At protein level, we observed no change of lysosomal ED1 immunoreactivity under treatment. Our study demonstrates the beneficial anti-inflammatory treatment with indomethacin. However, aging blunted the positive effect.
Collapse
|
19
|
Foley A, Coman C, Tobin A, Kehoe N, Shinners B, Timothy A, McGrath M, Goode M, Lynch B. G.P.248. Neuromuscul Disord 2014. [DOI: 10.1016/j.nmd.2014.06.324] [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]
|
20
|
Bob CCS, Coman C, Vlase E, Barbuceanu F, Popoviciu A, Turcu D, Badulescu M. Local treatment of induced chronic osteomyelitis in rabbit tibia – A comparative study. J Biotechnol 2014. [DOI: 10.1016/j.jbiotec.2014.07.326] [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: 10/24/2022]
|
21
|
Bob CCS, Coman C, Barbuceanu F, Vlase E, Popoviciu A, Turcu D, Badulescu M. Preventive treatment implant particles against osteomyelitis – An animal model. J Biotechnol 2014. [DOI: 10.1016/j.jbiotec.2014.07.320] [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: 11/26/2022]
|
22
|
Ferrante E, Malavazos AE, Giavoli C, Ermetici F, Coman C, Bergamaschi S, Profka E, Briganti S, Ronchi CL, Passeri E, Corbetta S, Lania AG, Spada A, Iacobellis G, Ambrosi B, Beck-Peccoz P. Epicardial fat thickness significantly decreases after short-term growth hormone (GH) replacement therapy in adults with GH deficiency. Nutr Metab Cardiovasc Dis 2013; 23:459-465. [PMID: 22118958 DOI: 10.1016/j.numecd.2011.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Revised: 09/05/2011] [Accepted: 09/07/2011] [Indexed: 10/15/2022]
Abstract
BACKGROUND AND AIM Growth Hormone Deficiency (GHD) is characterized by increased visceral fat accumulation. Echocardiographic epicardial fat thickness is a new marker of visceral adiposity. Aim of the present study was to evaluate whether epicardial fat thickness can significantly change and therefore serve as a marker of visceral fat reduction after short-term rhGH replacement therapy in patients with adult-onset GHD. METHODS AND RESULTS Echocardiographic epicardial fat thickness was measured in 18 patients (10 M, 8 F, age 48 ± 11.8 yrs, BMI 29 ± 5.9 kg/m(2)) with adult-onset GHD, at baseline and after 6 and 12 months of rhGH therapy and in 18 healthy matched controls, at baseline. Echocardiographic epicardial fat thickness, conventional anthropometric and metabolic parameters, body fat percentage and quality of life were also evaluated. Epicardial fat thickness in adult GHD patients was higher than in controls (9.8 ± 2.8 vs 8 ± 3 mm, p < 0.05). Epicardial fat thickness significantly decreased after 6-months of rhGH replacement therapy (from 9.8 ± 2.8 to 7.0 ± 2.3 mm, P < 0.01, i.e. -29% from baseline). After 12 months of rhGH replacement therapy, epicardial fat thickness showed a further significant decrease (from 7.0 ± 2.3 to 5.9 ± 3.1 mm, P < 0.01, i.e. -40% from baseline). No significant changes in BMI or waist circumference after 6 or 12 months of rhGH therapy were observed. CONCLUSIONS Echocardiographic epicardial fat thickness may represent a valuable and easy marker of visceral fat and visceral fat changes during rhGH replacement treatment in patients with adult-onset growth hormone deficiency.
Collapse
Affiliation(s)
- E Ferrante
- Endocrinology and Diabetology Unit, Department of Medical Sciences, University of Milan, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Giuglea C, Coman C, Marinescu S, Florescu I, Lascar I. Transplantation of composite tissue allograft: scientific bases and clinical applications. J Med Life 2013; 6:40-4. [PMID: 23599817 PMCID: PMC3624644] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 01/28/2013] [Indexed: 11/25/2022] Open
Abstract
Plastic surgery is by excellence a surgery in permanent search for new reconstructive options. In the last 50 years researches in the field of allotransplantation led to obtaining promising results for solving difficult cases when autologous tissues are not available for reconstruction, despite all the bioethical issues of this subject. This field of composite tissue transplantation evolved constantly, the top of it being total face transplantation, successfully accomplished while being based on the knowledge accumulated. There are many clinical applications of CTA, hand transplantation or only flexor tendon apparatus, lower limb, partial or complete face transplantations represent the most important part for us, plastic surgeons for obtaining the best reconstruction possible.
Collapse
Affiliation(s)
- C Giuglea
- Clinical Department of Plastic and Reconstructive Surgery, “Sf. Ioan" Clinical Emergency Hospital, Bucharest
| | - C Coman
- Clinical Department of Plastic and Reconstructive Surgery, “Sf. Ioan" Clinical Emergency Hospital, Bucharest
| | - S Marinescu
- Clinical Department of Plastic and Reconstructive Surgery, “Bagdasar-Arseni" Clinical Emergency Hospital, Bucharest
| | - I Florescu
- Clinical Department of Plastic and Reconstructive Surgery, “Bagdasar-Arseni" Clinical Emergency Hospital, Bucharest
| | - I Lascar
- Clinical Department of Plastic and Reconstructive Surgery, Clinical Emergency Hospital, Bucharest
| |
Collapse
|
24
|
Bogdan S, Seferian A, Totoescu A, Dumitrache-Rujinski S, Ceausu M, Coman C, Ardelean CM, Dorobantu M, Bogdan M. Sildenafil Reduces Inflammation and Prevents Pulmonary Arterial Remodeling of the Monocrotaline - induced Disease in the Wistar Rats. Maedica (Bucur) 2012; 7:109-116. [PMID: 23400229 PMCID: PMC3557417] [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] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 06/19/2012] [Indexed: 06/01/2023]
Abstract
OBJECTIVES Pulmonary arterial hypertension (PAH) is a rare and severe disease with incompletely under stood pathogenesis. PAH is associated with pulmonary arterial remodeling and inflammation. We evaluated the effects of Sildenafil on the Monocrotaline (MCT) -induced disease in Wistar rats, for potential benefit in the early phases of inflammation and vascular remodeling. MATERIAL AND METHODS MCT-injected rats, MCT-injected sildenafil-treated rats (starting day 1 with 2 x 0.2 mg/day; total of 2 mg/kgc/day) and saline-injected control rats were evaluated at day 14 and day 28 following MCT for pulmonary morphological changes - lesions, inflammation (inflammator y index), arterial morphometry (hypertrophy index), immunohistochemistry for smooth muscle cell marker. OUTCOMES The administration of sildenafil following MCT significantly reduced the severity of inflammation in the acute stage of the disease (reduction of the inflammatory index by 6.038% (p <0.05)) and prevented pulmonary arterial remodeling (reduction of the hypertrophy index by 7.306% (p<0.001)). It also improved survival in the early phase with a mortality rate during the first 14 days of 4 in the MCT- exposed rats vs 1 in the MCT-exposed sildenafil-treated rate. CONCLUSIONS Early administration of sildenafil in the MCT experimental PAH improves inflammation and survival, and prevents pulmonary vascular remodeling. Our study suggests that one of the mechanisms involved, besides vasodilatation and anti-proliferative effect, could be a direct anti-inflammatory effect of sildenafil.
Collapse
Affiliation(s)
- Stefan Bogdan
- "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Schell A, Leisenbach R, Coman C, Parissiadis A, Tourne S. A new HLA-B*15 allele, B*15:220, found in three individuals sharing the HLA-A*66:01, HLA-C*12:03 and HLADRB1*07:01 alleles. ACTA ACUST UNITED AC 2011; 78:287-8. [DOI: 10.1111/j.1399-0039.2011.01717.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
26
|
Surdu-Bob CC, Coman C, Călugăru A, Cremer L, Bădulescu M, Vlase E. Implant microparticles--a new concept for non-invasive cancer therapy. Roum Arch Microbiol Immunol 2011; 70:37-42. [PMID: 21717810] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Some progress in cancer research was possible in recent years mainly due to important advances in nanotechnology. However, clinical use of nanomaterials is still hindered by limitations. In search of better performance and control of inoculated materials, the efficiency and toxicity of SBBC implant particles was assessed. B16 tumoral cells (murine melanoma) were subjected to SBCC particles using in vitro and in vivo experimental models. In vitro experiments concerning the growth inhibition of tumoral cells using SBCC particles were performed by Flow Cytometry and by MTT Assay. In vivo experimental model (C57BL/6 mice) was used to complete this investigation: weight, viability and tumoral dimension were monitored. An anti-proliferative activity on B16 tumoral cells and an ability to produce apoptosis were observed. A reduction of tumoral volume and a 54% survival rate in the treated animals compared to the controls was obtained. Our preliminary results showed that the SBCC implants were effective against B16 melanoma cells, while there is no toxicity associated.
Collapse
Affiliation(s)
- Carmen Cristina Surdu-Bob
- 'Low Temperature Plasma Laboratory, National Institute for Lasers, Plasma and Radiation Physics, Bucharest, Romania; 2Cantacuzino National Institute of Research and Development for Microbiology and Immunology, Bucharest, Romania.
| | | | | | | | | | | |
Collapse
|
27
|
Constantin M, Brăileanu M, Drăcea ON, Marinescu B, Coman C, Codiţă I. [Tricophyton rubrum in a case of tinea unguium phenotypic mycological diagnostic algorithm and its limits]. Bacteriol Virusol Parazitol Epidemiol 2010; 55:45-49. [PMID: 21038705] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Trichophyton rubrum is the most common dermatophyte isolated from human dermatophytosis. We present the mycological diagnosis algorithm and results in an onychomycosis case--tinea unguium. Biological samples have been inoculated on both usual and special culture media and incubated at both 30 degrees C and 37 degrees C for a period of fourteen days. Based on the macroscopic and microscopic characters and on the physiological and biochemical tests results, we identified a Trichophyton rubrum granular type dermatophyte. We are discussing phenotypic mycological diagnosis limits and molecular diagnostic benefits for rapid setting up of fungal therapy in order to avoid chronic mycosis and their complications.
Collapse
|
28
|
Lupu A, Cremer L, Kerek F, Calugaru A, Barzu N, Coman C, Flonta M, Szegli G. 528 THE ROLE OF NATURAL COMPOUND D161 IN NEUROGENIC INFLAMMATION. Eur J Pain 2009. [DOI: 10.1016/s1090-3801(09)60531-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- A.R. Lupu
- Cantacuzino Institute, Bucharest, Romania
| | - L. Cremer
- Cantacuzino Institute, Bucharest, Romania
| | | | | | - N.S. Barzu
- Cantacuzino Institute, Bucharest, Romania
| | - C. Coman
- Cantacuzino Institute, Bucharest, Romania
| | | | - G. Szegli
- Cantacuzino Institute, Bucharest, Romania
| |
Collapse
|
29
|
Marinescu B, Coman C, Iancu AD, Stavaru C, Lupulescu E, Onu A, Radu DL. Evaluation of the efficacy of a specific hyperimmune serum in experimental influenza infection in mice. Roum Arch Microbiol Immunol 2009; 68:80-82. [PMID: 20361525] [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] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Serotherapy still remains a way of treatment in some diseases, and it could be consider superior to any other mode of action because the protecting substances of the body are the products of the organism itself. The aim of the study was to establish an "in vivo" method for testing the efficacy of therapeutic serum. Hyperimmune serum for influenza A/PR8/34 viral strain, was prepared in sheep, and tested for inhibition of haemagglutination and microneutralisation. Seroprotection was evaluated in mice one day after being challenged with a lethal dose of the same virus. Our study shows that protection occurred in all mice treated with undiluted hyperimmune serum one day post infection (no clinical signs, faster recovery of the body weight after the first three days of the infection, all mice survived).
Collapse
Affiliation(s)
- Bogdan Marinescu
- Centre for Advanced Studies, Experimental Pathology Laboratory, Cantacuzino National Institute of Research and Development for Microbiology, Splaiul Independentei 103, Bucharest 050096, Romania
| | | | | | | | | | | | | |
Collapse
|
30
|
Ermetici F, Dall'Asta C, Malavazos AE, Coman C, Morricone L, Montericcio V, Ambrosi B. Echocardiographic alterations in patients with non-functioning adrenal incidentaloma. J Endocrinol Invest 2008; 31:573-7. [PMID: 18591893 DOI: 10.1007/bf03346410] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE While left ventricular (LV) dysfunction has been described in patients with Cushing's syndrome (CS), data concerning morphologic and functional cardiac alterations in patients with incidentally discovered adrenal masses [adrenal "incidentaloma" (AI)], without overt hypercortisolism, are lacking. In this study the echocardiographic characteristics of patients with AI were evaluated and then compared with those of lean and obese normotensive subjects. SUBJECTS AND METHODS Twenty-one patients with AI, without clinical or subclinical hypercortisolism, 18 normotensive obese subjects matched for gender and body mass index (BMI) and 20 normotensive lean subjects were studied. Echocardiography was performed in all subjects. In all patients plasma ACTH, serum cortisol, and DHEA-S levels were measured. RESULTS Patients with AI showed greater impairment of several echocardiographic indices of LV hypertrophy and diastolic dysfunction compared to normotensive lean subjects (p<0.05), but did not differ from those in obese subjects. Hypertensive AI patients showed a greater alteration of echocardiographic parameters (p<0.05) and higher BMI (p<0.01) and cortisol values (p<0.05) than normotensive ones. Plasma ACTH and serum cortisol were similar in AI patients and in obese controls, while DHEA-S levels were lower in AI (p<0.05). No correlations between cortisol secretion and echocardiographic parameters were found. CONCLUSION In patients with non-functioning AI there is an impairment of cardiac morphology and function. These data suggest that patients with AI should be carefully screened also by means of echocardiographic studies.
Collapse
Affiliation(s)
- F Ermetici
- Endocrinology Unit, Department of Medical and Surgical Sciences, IRCCS Policlinico San Donato, University of Milan, 20097 San Donato Milanese, Italy
| | | | | | | | | | | | | |
Collapse
|
31
|
Bedeleanu D, Coman C, Encica S, Hagiu R, Molnar A, Cãpâlneanu R. Stanford type A aortic dissection in a hypertensive patient with atherosclerosis of aorta and aortitis. Echocardiography 2000; 17:181-5. [PMID: 10978979 DOI: 10.1111/j.1540-8175.2000.tb01122.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 11/29/2022] Open
Abstract
Dissection of aorta is a serious condition; the main factors are hypertension and diseases of the connective tissue or of collagen. Aortitis syndrome in combination with hypertension and atherosclerosis in association with ascending aortic dissection is rarely seen. We present the case of a 53-year-old hypertensive patient whose ascending aortic dissection was associated with pericardial effusion without rupture of the aorta and with pleural effusion. Several unusual aspects of transesophageal echocardiography are described. The intraoperative biopsy revealed inflammatory aortitis with mural hematoma, without giant cells. The literature concerning aortic dissection and aortitis is reviewed.
Collapse
Affiliation(s)
- D Bedeleanu
- Department of Cardiology, "N. Stãncioiu" Heart Institute, 3400 Cluj-Napoca, Romania
| | | | | | | | | | | |
Collapse
|
32
|
Coman C. [Prof. Cornel Cărpinişan (1904-1970)]. Pneumologia 2000; 49:69-71. [PMID: 10916421] [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] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Affiliation(s)
- C Coman
- Clinica de Chirurgie Toracică, Institutul de Pneumologie Marius Nasta, Bucureşti
| |
Collapse
|
33
|
Macri A, Stoicescu IP, Coman C, Coman BC, Popa V, Stoica R. [Congenital transdiaphragmatic hernia with a late manifestation]. Pneumoftiziologia 1994; 43:217-20. [PMID: 7767108] [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] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A case of diaphragmatic pathology is presented consisting in transdiaphragmatic penetration of abdominal viscera. It raised problems of differential diagnosis with other intrapleural pathology. X-ray aspects should not be interpreted without including them into the general clinical and laboratory data in order to avoid errors of diagnosis and treatment.
Collapse
Affiliation(s)
- A Macri
- U.M.F. Carol Davila, Bucureşti
| | | | | | | | | | | |
Collapse
|
34
|
Rădulescu I, Tudor R, Galbenu P, Coman C, Micu V, Stoicescu P. [Clinico-radiologic and morphopathologic aspects of mediastinal-pulmonary hemangiopericytoma]. Pneumoftiziologia 1993; 42:51-5. [PMID: 8142757] [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] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The paper points out the diagnosis of intrathoracic hemangiopericytoma in 13 patients in the "M.Nasta" Institute of Pneumophthisiology, a seldom seen disease considered quite serious because of its malignant form and its late finding out. This is due to its non-distinctive, small number of symptoms, which has a negative influence upon the disease prognosis and evolution.
Collapse
Affiliation(s)
- I Rădulescu
- Cabinetul de pneumoftiziologie, Policlinica Constructorilor, Bucureşti
| | | | | | | | | | | |
Collapse
|
35
|
Coman C. [The current stage of thoracic surgery]. Rev Ig Med Muncii Med Soc Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1990; 39:1-4. [PMID: 2223716] [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] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- C Coman
- Clinica de chirurgie toracică, I.M.F., Bucureşti
| |
Collapse
|
36
|
Coman C, Coman BC. [Surgical treatment of tracheobronchopulmonary cancer]. Rev Ig Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1988; 37:131-6. [PMID: 2462267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
37
|
Coman C, Scurei A, Micu V, Coman BC, Dimitriu M. [The place of surgical treatment in resolving pulmonary tuberculosis in the context of ineffective chemotherapy]. Rev Ig Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1988; 37:123-30. [PMID: 2849188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
38
|
Coman C, Stan A, Micu V, Dimitriu IM, Coman B. [Treatment of pulmonary aspergilloma]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Chir 1987; 36:363-71. [PMID: 2964063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
39
|
Coman C, Scurei A, Micu V, Coman BC, Bărbulescu C, Dumitriu M, Zară D. [Emergency surgical treatment in several clinical forms of toxico-septic shock in pleuropulmonary pathology]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Chir 1987; 36:29-40. [PMID: 2955454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
40
|
Coman C, Scurei A, Micu V, Coman BC, Horvat T. [Clinico-therapeutic considerations of a case of congenital pulmonary air cyst]. Rev Ig Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1986; 35:251-6. [PMID: 3027862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
41
|
Coman C, Păunescu E, Micu V, Georgescu G, Scurei A, Stan A, Coman BC. [Results of combining polychemotherapy including Riaval with surgical treatment of bronchopulmonary cancer]. Rev Ig Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1985; 34:339-45. [PMID: 3012753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
42
|
Coman C, Popescu LV. [Surgical treatment of bronchopulmonary tumors in children]. Rev Pediatr Obstet Ginecol Pediatr 1985; 34:249-59. [PMID: 3933076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
43
|
Coman C. [Current concepts in the treatment of bronchopulmonary cancer]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Chir 1984; 33:199-204. [PMID: 6238355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
44
|
Coman C, Stan A, Micu V, Scurei A, Dimitriu M, Zară D, Coman BC. [Chest wall tumors. Considerations on 158 operated cases]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Chir 1984; 33:113-21. [PMID: 6233653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
45
|
Coman C, Scurei A, Coman BC, Bărbulescu C, Zară D, Dimitriu M. [Surgical treatment of pleuropulmonary tuberculosis in children]. Rev Ig Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1984; 33:53-8. [PMID: 6328623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
46
|
Coman C, Micu V, Coman BC, Dimitriu M. [Surgical treatment of mediastinal caseomas]. Rev Ig Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1983; 32:25-31. [PMID: 6312532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
47
|
Coman C. [A new technical procedure in right medio-inferior bilobectomy]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Chir 1982; 31:377-81. [PMID: 6218523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
48
|
Coman C, Scurei A, Micu V, Coman BC, Dimitriu M, Zară D. [Clinical aspects of bronchiectasis in children. Current concepts of its surgical treatment]. Rev Pediatr Obstet Ginecol Pediatr 1982; 31:73-8. [PMID: 6808645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
49
|
Coman C, Stan A, Micu V, Dimitriu M. [Mediastinal neurogenic tumors]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Chir 1981; 30:185-90. [PMID: 6267665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An analysis is presented of clinical, radiological and evolutive aspects of 106 neurogenic mediastinal tumors operated in the Clinic for Tjhoracic surgery from Bucharest. The predominance is stressed of tumours originating in the nervous sheaths (62%), and the high incidence of tumours of the nervous cells (sympatomas, ganglio-neuroblastomas) in children. An analysis is made of the various surgical aspects. and the post-operative results, mostly favourable in over 90% of the subjects that underwent surgery.
Collapse
|
50
|
Coman C, Stan A, Micu V, Scurei A, Coman BC. [Our experience in the surgical treatment of pleural empyema by thoracopleuroplasty]. Rev Ig Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1981; 30:99-106. [PMID: 6264583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An analysis is presented, of the experience acquired in the Clinic for Thoracic Surgery from Bucharest in the surgical treatment of thoracal empyema by the Andrews type thoracopleuroplastia. The advantages of the surgical technique are stressed, after the modifications introduced by the authors, in contrast with other surgical techniques used, such as successive-type thoracoplastia, topographical thoracoplastia, plastron removal, etc. Careful preoperative preparation is recommended, and surgical indications are indicated and the major technical and tactical principles of the intervention are described. The Clinic's experience is based on 281 interventions. Of these 206 cases were of bacillary origin and 75 were non-bacillary. The etiologic forms of these empyemas are also analyzed. In such interventions the mortality was under 1%. Recidives were noted in approximately 1% of the cases and postoperative complications were solved without raising particular difficulties. These results recommend the thoracoplastia type intervention as the choice technique in a large number of thoracic empyemas.
Collapse
|