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Estève E, Buob D, Jamme F, Jouanneau C, Kascakova S, Haymann JP, Letavernier E, Galmiche L, Ronco P, Daudon M, Bazin D, Réfrégiers M. Detection and localization of calcium oxalate in kidney using synchrotron deep ultraviolet fluorescence microscopy. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:214-223. [PMID: 34985438 PMCID: PMC8733991 DOI: 10.1107/s1600577521011371] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 10/28/2021] [Indexed: 05/14/2023]
Abstract
Renal oxalosis is a rare cause of renal failure whose diagnosis can be challenging. Synchrotron deep ultraviolet (UV) fluorescence was assayed to improve oxalosis detection on kidney biopsies spatial resolution and sensitivity compared with the Fourier transform infrared microspectroscopy gold standard. The fluorescence spectrum of synthetic mono-, di- and tri-hydrated calcium oxalate was investigated using a microspectrometer coupled to the synchrotron UV beamline DISCO, Synchrotron SOLEIL, France. The obtained spectra were used to detect oxalocalcic crystals in a case control study of 42 human kidney biopsies including 19 renal oxalosis due to primary (PHO, n = 11) and secondary hyperoxaluria (SHO, n = 8), seven samples from PHO patients who received combined kidney and liver transplants, and 16 controls. For all oxalocalcic hydrates samples, a fluorescence signal is detected at 420 nm. These spectra were used to identify standard oxalocalcic crystals in patients with PHO or SHO. They also revealed micrometric crystallites as well as non-aggregated oxalate accumulation in tubular cells. A nine-points histological score was established for the diagnosis of renal oxalosis with 100% specificity (76-100) and a 73% sensitivity (43-90). Oxalate tubular accumulation and higher histological score were correlated to lower estimated glomerular filtration rate and higher urinary oxalate over creatinine ratio.
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Affiliation(s)
- Emmanuel Estève
- Sorbonne Université, UPMC Paris 06, Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S 1155, F-75020 Paris, France
| | - David Buob
- Sorbonne Université, UPMC Paris 06, Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S 1155, F-75020 Paris, France
| | - Frédéric Jamme
- Synchrotron SOLEIL, DISCO Beamline, L'Orme des Merisiers, Saint-Aubin, 91192 Gif sur Yvette, France
| | - Chantal Jouanneau
- Sorbonne Université, UPMC Paris 06, Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S 1155, F-75020 Paris, France
| | - Slavka Kascakova
- Synchrotron SOLEIL, DISCO Beamline, L'Orme des Merisiers, Saint-Aubin, 91192 Gif sur Yvette, France
| | - Jean Philippe Haymann
- Sorbonne Université, UPMC Paris 06, Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S 1155, F-75020 Paris, France
| | - Emmanuel Letavernier
- Sorbonne Université, UPMC Paris 06, Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S 1155, F-75020 Paris, France
| | - Louise Galmiche
- Pathology Department, Necker-Enfants Malades Hospital, Public Assistance-Hospitals of Paris, Université Paris, 75015 Paris, France
| | - Pierre Ronco
- Sorbonne Université, UPMC Paris 06, Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S 1155, F-75020 Paris, France
| | - Michel Daudon
- Sorbonne Université, UPMC Paris 06, Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S 1155, F-75020 Paris, France
| | - Dominique Bazin
- Laboratoire de Physique des Solides, CNRS UMR8502, Université Paris Saclay, Orsay, France
| | - Matthieu Réfrégiers
- Synchrotron SOLEIL, DISCO Beamline, L'Orme des Merisiers, Saint-Aubin, 91192 Gif sur Yvette, France
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