1
|
Alsugair Z, Fieux M, Descotes F, Lopez J, Cordonnier C, Russel J, Champagnac A, Pissaloux D, Céruse P, Philouze P, Benzerdjeb N. Peculiar nuclear atypia associated with MDM2 gene amplification in carcinoma ex-pleomorphic adenoma harbouring an alteration of HMGA2. Histopathology 2024. [PMID: 38708906 DOI: 10.1111/his.15209] [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: 12/21/2023] [Revised: 04/15/2024] [Accepted: 04/21/2024] [Indexed: 05/07/2024]
Abstract
AIMS Salivary gland neoplasms (SGN) exhibiting the HMGA2::WIF1 fusion are recognized by their resemblance to histology found in canalicular adenoma. Recently, ~20% of cases among 28 HMGA2::WIF1-rearranged-SGN showed malignancy and adverse outcomes (recurrence, distant metastasis, and disease-specific mortality). Among them, MDM2/CDK4 amplifications were identified in one case. This outcome suggests that the MDM2/CDK4 amplifications could be useful to predict an aggressive course of carcinoma ex-pleomorphic adenoma (CEPA). METHODS AND RESULTS We investigated the correlation between HMGA2 fusion and MDM2 amplification in four salivary gland neoplasms, providing detailed clinicopathological features and outcomes. Cases were selected from different institutions. Histological examination, immunohistochemistry, fluorescence in situ hybridization (FISH), RNA sequencing, and whole-exome capture were performed. The cohort included four CEPA cases, all female, aged between 32 and 89 years. Tumours arose from the parotid gland with an average size of 24.5 mm. None exhibited recurrence or distant metastases during the 4-5 months of follow-up. Pathologically, all cases displayed a peculiar atypical nuclei with 'gear-like appearance'. Immunohistochemically, tumours exhibited a biphasic pattern with myoepithelial and ductal differentiation markers. All cases showed HMGA2 overexpression and MDM2 amplification by FISH and RNA sequencing. In a control cohort of MDM2 nonamplified CEPA cases, not exhibiting the peculiar nuclear atypia. CONCLUSIONS Our findings suggest a strong correlation between HMGA2 alteration/MDM2 amplification and a peculiar nuclear atypia, advocating for their evaluation in biphasic tumours to facilitate accurate diagnosis and tailored posttumour removal monitoring. Further studies are warranted to validate these observations and elucidate their prognostic implications.
Collapse
Affiliation(s)
- Ziyad Alsugair
- Department of Pathology, Institut of Pathologie Multisite, Hospices Civils de Lyon, University South Lyon Hospital, Pierre-Bénite, France
| | - Maxime Fieux
- Department of Oto-Rhino-Laryngology and Head and Neck Surgery, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Pierre-Bénite, France
- University Claude Bernard Lyon 1, Lyon, France
| | - Françoise Descotes
- Biochemistry and Molecular Biology Department, Hospices Civils de Lyon, University South Lyon Hospital, Pierre-Bénite, France
| | - Jonathan Lopez
- University Claude Bernard Lyon 1, Lyon, France
- Biochemistry and Molecular Biology Department, Hospices Civils de Lyon, University South Lyon Hospital, Pierre-Bénite, France
| | | | | | | | - Daniel Pissaloux
- Biopathology Department, Centre Leon Berard, Lyon, France
- The Unit of Molecular Pathology, INSERM 1052, CNRS 5286 of Cancer Research Center of Lyon, and Team Genetics, Epigenetics and Biology of Sarcomas, Université Claude Bernard Lyon 1, Lyon, France
| | - Philippe Céruse
- University Claude Bernard Lyon 1, Lyon, France
- Department of Oto-Rhino-Laryngology and Head and Neck Surgery, Hospices Civils de Lyon, La Croix Rousse Hospital, Lyon, France
| | - Pierre Philouze
- University Claude Bernard Lyon 1, Lyon, France
- Department of Oto-Rhino-Laryngology and Head and Neck Surgery, Hospices Civils de Lyon, La Croix Rousse Hospital, Lyon, France
| | - Nazim Benzerdjeb
- Department of Pathology, Institut of Pathologie Multisite, Hospices Civils de Lyon, University South Lyon Hospital, Pierre-Bénite, France
- University Claude Bernard Lyon 1, Lyon, France
- EMR3738, CICLY, Pierre-Bénite, France
| |
Collapse
|
2
|
Alsugair Z, Perrot J, Descotes F, Lopez J, Champagnac A, Pissaloux D, Castain C, Onea M, Céruse P, Philouze P, Lépine C, Lanic MD, Laé M, Costes-Martineau V, Benzerdjeb N. Characterization of a Molecularly Distinct Subset of Oncocytic Pleomorphic Adenomas/Myoepitheliomas Harboring Recurrent ZBTB47-AS1::PLAG1 Gene Fusion. Am J Surg Pathol 2024; 48:551-561. [PMID: 38497430 DOI: 10.1097/pas.0000000000002206] [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: 03/19/2024]
Abstract
Recurrent gene fusions are common in salivary gland tumors including benign tumors, such as pleomorphic adenoma (PA) and myoepithelioma (ME). In cases where chromosomal rearrangement is identified in the pleomorphic adenoma gene 1 (PLAG1) gene, different gene partners are found. Oncocytic metaplasia, characterized by oncocytes with abundant eosinophilic granular cytoplasm and hyperchromatic nuclei, is a well-known phenomenon in salivary gland neoplasms. However, the pure oncocytic variant of PA/ME showed PLAG1 gene rearrangements involving various gene partners at the molecular level, without any recurrent fusion being found. Our study includes 20 cases of PA/ME, with 11 females and 9 males. The age of patients ranged from 37 to 96 years, with a median age of 62.8 years. Most tumors originate from the parotid gland. The median size of the tumor was 26.5 mm (range: 13 to 60 mm). Among the 20 cases, 14 were a pure oncocytic variant of PA/ME, whereas 6 cases showed focal oncocytic or oncocytic-like aspects. Molecular studies on 20 cases of PA/ME were conducted. A novel recurrent ZBTB47-AS1::PLAG1 fusion was identified in 6 of 12 cases with pure oncocytic metaplasia, whereas the other cases had PLAG1 gene fusion with different gene partners. The transcriptomic analysis of the cases harboring ZBTB47-AS1::PLAG1 fusion demonstrated that these tumors have a distinct molecular profile from conventional PA/ME. This study reveals a unique subset in the oncocytic PA/ME spectrum characterized by pure oncocytic morphology with larger oncocytic cells and recurrent ZBTB47-AS1::PLAG1 fusion. It also highlights the transcriptomic distinctness of salivary gland adenomas with pure oncocytic metaplasia in the spectrum of salivary gland neoplasms. Further studies are needed to better understand the oncocytic variant of PA/ME and to determine the true nature of oncocytic cells in PA/ME.
Collapse
Affiliation(s)
- Ziyad Alsugair
- Department of Pathology, Institut of Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon
| | - Jimmy Perrot
- Department of Pathology, Institut of Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon
| | - Françoise Descotes
- Department of Biochemistry and Molecular Biology, Groupement Hospitalier Sud, Lyon, Pierre-Bénite
| | - Jonathan Lopez
- Department of Biochemistry and Molecular Biology, Groupement Hospitalier Sud, Lyon, Pierre-Bénite
| | | | - Daniel Pissaloux
- Department of Biopathology, Centre Léon Bérard
- The Unit of Molecular Pathology, INSERM, Cancer Research Center of Lyon, and Team Genetics, Epigenetics and Biology of Sarcomas, Université Claude Bernard Lyon 1
| | - Claire Castain
- Department of Oto-Rhino-Laryngology and Head and Neck Surgery, La Croix Rousse Hospital, Hospices Civils de Lyon
| | - Mihaela Onea
- EMR3738, CICLY, University Claude Bernard Lyon 1, Lyon
| | - Philippe Céruse
- Department of Pathology, University Hospital of Bordeaux, Bordeaux
| | - Pierre Philouze
- Department of Pathology, University Hospital of Bordeaux, Bordeaux
| | - Charles Lépine
- Department of Pathology, University Hospital of Strasbourg, Strasbourg
- Department of Pathology, CHU Nantes
| | - Marie-Delphine Lanic
- Nantes University, Univ Angers, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, Nantes
- INSERM U1245, Cancer Center Henri Becquerel, Institute of Research and Innovation in Biomedicine (IRIB), University of Normandy, UNIROUEN
| | - Marick Laé
- Nantes University, Univ Angers, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, Nantes
- INSERM U1245, Cancer Center Henri Becquerel, Institute of Research and Innovation in Biomedicine (IRIB), University of Normandy, UNIROUEN
| | | | - Nazim Benzerdjeb
- Department of Pathology, Institut of Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon
- Department of Pathology, University Hospital of Montpellier, Montpellier, France
| |
Collapse
|
3
|
Alsugair Z, Neuhart A, Benzerdjeb N, Champagnac A, Pissaloux D, Baltres A. Sialadenoma papilliferum-like intraductal papillary tumor with unveiling BRAF V600E and PIK3CA H1047R mutations: Case report with molecular analysis and literature review. Int J Surg Case Rep 2024; 118:109611. [PMID: 38636162 PMCID: PMC11044030 DOI: 10.1016/j.ijscr.2024.109611] [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: 02/20/2024] [Revised: 03/28/2024] [Accepted: 03/31/2024] [Indexed: 04/20/2024] Open
Abstract
INTRODUCTION Sialadenoma papilliferum (SP), a rare minor salivary gland tumor, shares morphological and genetic similarities with syringocystadenoma papilliferum. Recent studies have identified BRAF V600E or HRAS mutations in SP, suggesting its neoplastic nature. Despite being uncommon, SP poses diagnostic challenges due to its resemblance to other lesions like squamous papilloma. The emergence of sialadenoma papilliferum-like intraductal papillary tumor (SP-IPT) further complicates its classification, emphasizing the need for thorough investigation. CASE PRESENTATION A 50-year-old male presented with a left palatal lesion histologically diagnosed as SP-IPT. Surgical resection revealed characteristic features, including papillary projections into cystically dilated ductal spaces. Immunohistochemistry confirmed positivity for pan-keratin AE1/AE3, cytokeratin 7, SOX10, and BRAF V600E. Whole-exome sequencing identified BRAF V600E and PIK3CA H1047R mutations. No recurrence was observed three months post-excision. DISCUSSION SP-IPT's diagnostic complexity stems from its resemblance to SP without an exophytic papillary component. However, shared BRAF mutations suggest a close relationship between the two entities. Similarities with skin adnexal tumors underscore the importance of molecular markers in tumor classification. The identification of PIK3CA mutation in SP-IPT adds to its molecular diversity, warranting further investigation into its clinical significance. CONCLUSION This study presents a case of SP-IPT with unique histological and molecular features, highlighting its diagnostic and therapeutic challenges. The co-occurrence of BRAF V600E and PIK3CA H1047R mutations suggests a distinct molecular profile in SP-IPT, necessitating further research to elucidate its biological behavior and clinical implications.
Collapse
Affiliation(s)
- Ziyad Alsugair
- Department of Pathology, Institut de Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France.
| | - Anne Neuhart
- Biopathology department, Centre Leon Berard, Lyon, France
| | - Nazim Benzerdjeb
- Department of Pathology, Institut de Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | | | - Daniel Pissaloux
- Biopathology department, Centre Leon Berard, Lyon, France; The Unit of Molecular Pathology, INSERM 1052, CNRS 5286 of Cancer Research Center of Lyon, Team Genetics, Epigenetics and Biology of Sarcomas, Université Claude Bernard Lyon 1, Lyon, France
| | - Aline Baltres
- Biopathology department, Centre Leon Berard, Lyon, France
| |
Collapse
|
4
|
Berger C, Boccalini S, Champagnac A, Ovize M, Bochaton T. Acute necrotizing eosinophilic myocarditis presented as an acute coronary syndrome. Eur Heart J Cardiovasc Imaging 2021; 22:e79. [PMID: 33179727 DOI: 10.1093/ehjci/jeaa306] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Clothilde Berger
- Unité de soins intensifs cardiologiques, Hôpital Louis Pradel, 28 avenue Doyen Jean Lépine, 69500 Bron, Lyon, France
| | | | - Anne Champagnac
- Service d'anatomopathologie, Hôpital Louis Pradel, Lyon, France
| | - Michel Ovize
- Explorations Fonctionnelles Cardiovasculaires, Hôpital Louis Pradel, Lyon, France; UMR1060 (CarMeN), Université de Lyon, Lyon, France
| | - Thomas Bochaton
- Unité de soins intensifs cardiologiques, Hôpital Louis Pradel, 28 avenue Doyen Jean Lépine, 69500 Bron, Lyon, France
| |
Collapse
|
5
|
Affiliation(s)
- Marc Bonnet
- Cardiology Department, Hôpital Croix-Rousse and Lyon Sud, Hospices Civils de Lyon, Lyon, France
| | - Anne Champagnac
- Histopathology Department, Hôpital Louis-Pradel, Hospices Civils de Lyon, Lyon, France
| | - Pierre Lantelme
- Cardiology Department, Hôpital Croix-Rousse and Lyon Sud, Hospices Civils de Lyon, Lyon, France
| | - Brahim Harbaoui
- Cardiology Department, Hôpital Croix-Rousse and Lyon Sud, Hospices Civils de Lyon, Lyon, France
| |
Collapse
|
6
|
Trecourt A, Brevet M, Champagnac A, Conrad A, Josse J, Dupieux-Chabert C, Valour F, Ferry T. Plasma Cell Infiltration on Histopathological Samples of Chronic Bone and Joint Infections due to Cutibacterium acnes: A series of 21 Cases. J Bone Jt Infect 2020; 5:205-211. [PMID: 32670775 PMCID: PMC7358965 DOI: 10.7150/jbji.46187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/22/2020] [Indexed: 11/05/2022] Open
Abstract
Introduction: Histopathological definition of bone and joint infection (BJI) is based on Mirra's criterion (≥ 5 polymorphonuclears (PMNs) per field in 5 high power fields (HPFs)). However, this definition does not seem appropriate for chronic BJIs caused by slow-growing germs such as Cutibacterium acnes (C. acnes). The aim of this study was to confirm that Mirra's criterion is not adequate for diagnosis of BJIs due to C. acnes. The second objective was to determine if plasma cell infiltration could be useful for the diagnosis of chronic BJIs due to C. acnes. Methods: We retrospectively selected 25 consecutive patients from 2009 to 2013 with chronic BJIs due to C. acnes. Histological analysis was performed on the 21 cases with at least two C. acnes positive cultures. In addition of Mirra's criterion, the number of plasma cells (≥5 plasma cells/5 HPFs, defined as "CRIOAc Lyon's criterion") was implemented in the histopathological analysis. Patients were defined as infected, if at least one of the two criteria were present. Results: According to Mirra's and CRIOAc Lyon's criteria, positive histopathology was observed in 12 (57.1%) and 15 (71.4%) cases respectively. Considering the 9 cases with negative Mirra's criterion, high plasma cell infiltration (≥5 plasma cells per field/5 HPFs) was observed in 5 cases (55.6%), and low plasma cells infiltration (2-5 plasma cells per field/5 HPFs) was observed in 4 other cases (44.4%). Conclusions: Adding CRIOAc Lyon's criterion to Mirra's criterion might restore some histopathological diagnosis of chronic BJIs due to C. acnes when a chronic BJI is clinically suspected.
Collapse
Affiliation(s)
- Alexis Trecourt
- Hospices Civils de Lyon, Institut de pathologie multisites des Hospices Civils de Lyon, Site Est et plateforme de pathologie moléculaire, Bron, France
| | - Marie Brevet
- Hospices Civils de Lyon, Institut de pathologie multisites des Hospices Civils de Lyon, Site Est et plateforme de pathologie moléculaire, Bron, France.,Université Claude Bernard Lyon 1, Lyon, France
| | - Anne Champagnac
- Hospices Civils de Lyon, Institut de pathologie multisites des Hospices Civils de Lyon, Site Est et plateforme de pathologie moléculaire, Bron, France
| | - Anne Conrad
- Université Claude Bernard Lyon 1, Lyon, France.,Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Service de Maladies Infectieuses et Tropicales, Lyon, France.,Centre de Référence des Infections Ostéo- Articulaires Complexes de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
| | - Jérôme Josse
- Université Claude Bernard Lyon 1, Lyon, France.,Centre de Référence des Infections Ostéo- Articulaires Complexes de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
| | - Céline Dupieux-Chabert
- Université Claude Bernard Lyon 1, Lyon, France.,Centre de Référence des Infections Ostéo- Articulaires Complexes de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France.,Hospices Civils de Lyon, Hôpital Croix-Rousse, Institut des Agents Infectieux, Laboratoire de Bactériologie, Lyon, France
| | - Florent Valour
- Université Claude Bernard Lyon 1, Lyon, France.,Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Service de Maladies Infectieuses et Tropicales, Lyon, France.,Centre de Référence des Infections Ostéo- Articulaires Complexes de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
| | - Tristan Ferry
- Université Claude Bernard Lyon 1, Lyon, France.,Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Service de Maladies Infectieuses et Tropicales, Lyon, France.,Centre de Référence des Infections Ostéo- Articulaires Complexes de Lyon, Lyon, France.,Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
| |
Collapse
|
7
|
Champagnac A, Bringuier PP, Barritault M, Isaac S, Watkin E, Forest F, Maury JM, Girard N, Brevet M. Frequency of MET exon 14 skipping mutations in non-small cell lung cancer according to technical approach in routine diagnosis: results from a real-life cohort of 2,369 patients. J Thorac Dis 2020; 12:2172-2178. [PMID: 32642122 PMCID: PMC7330338 DOI: 10.21037/jtd.2020.04.21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Background Mesenchymal epithelial transition receptor (MET) alterations, including MET exon 14 skipping mutation, are oncogenic in non-small cell lung cancer (NSCLC) and may confer sensitivity to targeted therapy. Given the rarity and the diversity of exon 14 skipping mutations, diagnosis may be challenging on small-biopsy specimens. Methods Between March 2014 and May 2018, tissue samples from patients with metastatic NSCLC were analysed for MET exon 14 skipping mutation as part of routine practice in the Pathology Department of the Hospices Civils de Lyon, France. Over the study period, Sanger sequencing and/or two different DNA-based next generation sequencing (NGS) assays were used. Results Genomic alterations of MET exon 14 were detected in 2.6% (62/2,369) samples of NSCLC analysed for MET exon 14 mutations. Patients were mainly women (38/62, 61%) without smoking history (22/39, 56%) and the median age was 75 years. MET exon 14 skipping mutations were diagnosed by NGS in 50 cases and by classical Sanger sequencing in 12 cases. The frequency of MET mutations was 15.4% when Sanger sequencing was performed at the request of the clinician and 4.1% when the DNA-based NGS assay coverage included the 3' and 5' parts of the MET exon 14 and performed systematically. Conclusions The frequency of genomic alterations is highly dependent on patient selection and the technical approach.
Collapse
Affiliation(s)
- Anne Champagnac
- Pathology Department, Hospices Civils de Lyon, Bron, France.,Lyon 1 University, Lyon, France
| | - Pierre-Paul Bringuier
- Pathology Department, Hospices Civils de Lyon, Bron, France.,Lyon 1 University, Lyon, France
| | - Marc Barritault
- Pathology Department, Hospices Civils de Lyon, Bron, France.,Lyon 1 University, Lyon, France
| | - Sylvie Isaac
- Lyon 1 University, Lyon, France.,Pathology Department, Lyon University Hospital, Pierre-Bénite, France
| | | | - Fabien Forest
- Pathology Department, Saint Etienne University Hospital-Site Nord, Saint Etienne, France
| | - Jean-Michel Maury
- Lyon 1 University, Lyon, France.,Thoracic Surgery Department, Hospices Civils de Lyon, Bron, France
| | - Nicolas Girard
- Lyon 1 University, Lyon, France.,Institut of Thorax Curie-Montsouris, Institut Curie, Paris, France
| | - Marie Brevet
- Pathology Department, Hospices Civils de Lyon, Bron, France.,Lyon 1 University, Lyon, France
| |
Collapse
|
8
|
Buzas A, Champagnac A, Dehnel A, Lavielle G, Pommier M. Synthesis and psychoanaleptic properties of new compounds structurally related to diphenhydramine. J Med Chem 1980; 23:149-53. [PMID: 6102153 DOI: 10.1021/jm00176a009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A new series of benzhydryloxyalkylpiperazines carrying a trivalent function has been synthesized and studied for its effects on the central nervous system. Most of the compounds exhibit unexpected nonamphetaminic psychoanaleptic properties. The structure-activity studies revealed the importance of the nature and the position of the substituents on the phenyl rings. However, no significant correlation between atropinic or antihistaminic effects and psychoanaleptic properties was observed.
Collapse
|
9
|
Thomas J, Duburque MT, Champagnac A, Jean S. Effect of succinimide on hyperoxaluria in the rat estimated value of the different dosing methods of oxaluria. Urol Int 1977; 32:1-7. [PMID: 888249 DOI: 10.1159/000280105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In the female rat intoxicated with ethylene glycol the oxaluria increases with the degree of intoxication. The increase is less in the animals treated with succinimide. The comparative study of the results of the dosages made with gas-liquid-chromatography and by various colorimetric methods show that this later gives varying results and underestimates high concentrations of oxalic acid. The result is that any study based on results of dosages of urinary oxalic acid made by colorimetry must be taken with some reserve, and this on whether the oxalic lithiasis is experimentally induced or human, or whether its evolution is spontaneous or influenced by a therapeutic.
Collapse
|
10
|
Thomas J, Thomas E, Duburque MT, Champagnac A, Melon JM, Desgrez P. [Succinate (and succinimide), malate, oxaloacetate. Their therapeutic effects and mechanism of action of oxalic lithiasis]. J Urol Nephrol (Paris) 1974; 80:789-92. [PMID: 4463256] [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: 01/10/2023]
|