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Vasseur C, Serra L, El Balkhi S, Lefort G, Ramé C, Froment P, Dupont J. Glyphosate presence in human sperm: First report and positive correlation with oxidative stress in an infertile French population. Ecotoxicol Environ Saf 2024; 278:116410. [PMID: 38696871 DOI: 10.1016/j.ecoenv.2024.116410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/15/2024] [Accepted: 04/27/2024] [Indexed: 05/04/2024]
Abstract
Environmental exposure to endocrine disruptors, such as pesticides, could contribute to a decline of human fertility. Glyphosate (GLY) is the main component of Glyphosate Based Herbicides (GBHs), which are the most commonly herbicides used in the world. Various animal model studies demonstrated its reprotoxicity. In Europe, GLY authorization in agriculture has been extended until 2034. Meanwhile the toxicity of GLY in humans is still in debate. The aims of our study were firstly to analyse the concentration of GLY and its main metabolite, amino-methyl-phosphonic acid (AMPA) by LC/MS-MS in the seminal and blood plasma in an infertile French men population (n=128). We secondly determined Total Antioxidant Status (TAS) and Total Oxidant Status (TOS) using commercial colorimetric kits and some oxidative stress biomarkers including malondialdehyde (MDA) and 8-hydroxy-2'-deoxyguanosine (8-OHdG) by ELISA assays. We next analysed potential correlations between GLY and oxidative stress biomarkers concentration and sperm parameters (sperm concentration, progressive speed, anormal forms). Here, we detected for the first time GLY in the human seminal plasma in significant proportions and we showed that its concentration was four times higher than those observed in blood plasma. At the opposite, AMPA was undetectable. We also observed a strong positive correlation between plasma blood GLY concentrations and plasma seminal GLY and 8-OHdG concentrations, the latter reflecting DNA impact. In addition, TOS, Oxidative Stress Index (OSI) (TOS/TAS), MDA blood and seminal plasma concentrations were significantly higher in men with glyphosate in blood and seminal plasma, respectively. Taken together, our results suggest a negative impact of GLY on the human reproductive health and possibly on his progeny. A precaution principle should be applied at the time of the actual discussion of GLY and GBHs formulants uses in Europe by the authorities.
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Affiliation(s)
- Claudine Vasseur
- Centre de fertilité, Pôle Santé Léonard de Vinci, Chambray-lès-Tours, France.
| | - Loïse Serra
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly F-37380, France
| | - Souleiman El Balkhi
- Service de Pharmacologie, Toxicologie et Pharmacovigilance, Limoges, CHU F-87042, France
| | - Gaëlle Lefort
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly F-37380, France
| | - Christelle Ramé
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly F-37380, France
| | - Pascal Froment
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly F-37380, France
| | - Joëlle Dupont
- CNRS, IFCE, INRAE, Université de Tours, PRC, Nouzilly F-37380, France.
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Piégu B, Lefort G, Douet C, Milhes M, Jacques A, Lareyre JJ, Monget P, Fouchécourt S. A first complete catalog of highly expressed genes in eight chicken tissues reveals uncharacterized gene families specific for the chicken testis. Physiol Genomics 2024; 56:445-456. [PMID: 38497118 DOI: 10.1152/physiolgenomics.00151.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/08/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024] Open
Abstract
Based on next-generation sequencing, we established a repertoire of differentially overexpressed genes (DoEGs) in eight adult chicken tissues: the testis, brain, lung, liver, kidney, muscle, heart, and intestine. With 4,499 DoEGs, the testis had the highest number and proportion of DoEGs compared with the seven somatic tissues. The testis DoEG set included the highest proportion of long noncoding RNAs (lncRNAs; 1,851, representing 32% of the lncRNA genes in the whole genome) and the highest proportion of protein-coding genes (2,648, representing 14.7% of the protein-coding genes in the whole genome). The main significantly enriched Gene Ontology terms related to the protein-coding genes were "reproductive process," "tubulin binding," and "microtubule cytoskeleton." Using real-time quantitative reverse transcription-polymerase chain reaction, we confirmed the overexpression of genes that encode proteins already described in chicken sperm [such as calcium binding tyrosine phosphorylation regulated (CABYR), spermatogenesis associated 18 (SPATA18), and CDK5 regulatory subunit associated protein (CDK5RAP2)] but whose testis origin had not been previously confirmed. Moreover, we demonstrated the overexpression of vertebrate orthologs of testis genes not yet described in the adult chicken testis [such as NIMA related kinase 2 (NEK2), adenylate kinase 7 (AK7), and CCNE2]. Using clustering according to primary sequence homology, we found that 1,737 of the 2,648 (67%) testis protein-coding genes were unique genes. This proportion was significantly higher than the somatic tissues except muscle. We clustered the other 911 testis protein-coding genes into 495 families, from which 47 had all paralogs overexpressed in the testis. Among these 47 testis-specific families, eight contained uncharacterized duplicated paralogs without orthologs in other metazoans except birds: these families are thus specific for chickens/birds.NEW & NOTEWORTHY Comparative next-generation sequencing analysis of eight chicken tissues showed that the testis has highest proportion of long noncoding RNA and protein-coding genes of the whole genome. We identified new genes in the chicken testis, including orthologs of known mammalian testicular genes. We also identified 47 gene families in which all the members were overexpressed, if not exclusive, in the testis. Eight families, organized in duplication clusters, were unknown, without orthologs in metazoans except birds, and are thus specific for chickens/birds.
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Affiliation(s)
- Benoît Piégu
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Centre National de la Recherche Scientifique, Université de Tours, PRC, Nouzilly, France
| | - Gaëlle Lefort
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Centre National de la Recherche Scientifique, Université de Tours, PRC, Nouzilly, France
| | - Cécile Douet
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Centre National de la Recherche Scientifique, Université de Tours, PRC, Nouzilly, France
| | - Marine Milhes
- US 1426, GeT-PlaGe, Genotoul, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Castanet-Tolosan, France
| | - Aurore Jacques
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Centre National de la Recherche Scientifique, Université de Tours, PRC, Nouzilly, France
| | - Jean-Jacques Lareyre
- UR1037 LPGP, Fish Physiology and Genomics, Campus de Beaulieu, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Rennes, France
| | - Philippe Monget
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Centre National de la Recherche Scientifique, Université de Tours, PRC, Nouzilly, France
| | - Sophie Fouchécourt
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Centre National de la Recherche Scientifique, Université de Tours, PRC, Nouzilly, France
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3
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Liaubet L, Guilmineau C, Lefort G, Billon Y, Reigner S, Bailly J, Marty-Gasset N, Gress L, Servien R, Bonnet A, Gilbert H, Vialaneix N, Quesnel H. Plasma 1H-NMR metabolic and amino acid profiles of newborn piglets from two lines divergently selected for residual feed intake. Sci Rep 2023; 13:7127. [PMID: 37130953 PMCID: PMC10154392 DOI: 10.1038/s41598-023-34279-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 04/27/2023] [Indexed: 05/04/2023] Open
Abstract
Together with environmental factors, physiological maturity at birth is a major determinant for neonatal survival and postnatal development in mammalian species. Maturity at birth is the outcome of complex mechanisms of intra-uterine development and maturation during the end of gestation. In pig production, piglet preweaning mortality averages 20% of the litter and thus, maturity is a major welfare and economic concern. Here, we used both targeted and untargeted metabolomic approaches to provide a deeper understanding of the maturity in a model of lines of pigs divergently selected on residual feed intake (RFI), previously shown to have contrasted signs of maturity at birth. Analyses were conducted on plasma metabolome of piglets at birth and integrated with other phenotypic characteristics associated to maturity. We confirmed proline and myo-inositol, previously described for their association with delayed growth, as potential markers of maturity. Urea cycle and energy metabolism were found more regulated in piglets from high and low RFI lines, respectively, suggesting a better thermoregulation ability for the low RFI (with higher feed efficiency) piglets.
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Affiliation(s)
- Laurence Liaubet
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France.
| | | | - Gaëlle Lefort
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France
- Université de Toulouse, INRAE, UR MIAT, 31326, Castanet-Tolosan, France
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380, Nouzilly, France
| | - Yvon Billon
- INRAE, GENESI, 17700, Saint Pierre d'Amilly, France
| | | | - Jean Bailly
- INRAE, GENESI, 17700, Saint Pierre d'Amilly, France
| | | | - Laure Gress
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France
| | - Rémi Servien
- INRAE, Univ. Montpellier, LBE, 102 Avenue des étangs, 11100, Narbonne, France
| | - Agnès Bonnet
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France
| | - Hélène Gilbert
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France
| | | | - Hélène Quesnel
- PEGASE, INRAE, Institut Agro, 35590, Saint-Gilles, France
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Fréville M, Estienne A, Ramé C, Lefort G, Chahnamian M, Staub C, Venturi E, Lemarchand J, Maximin E, Hondelatte A, Zemb O, Canlet C, Guabiraba R, Froment P, Dupont J. Chronic dietary exposure to a glyphosate-based herbicide results in total or partial reversibility of plasma oxidative stress, cecal microbiota abundance and short-chain fatty acid composition in broiler hens. Front Physiol 2022; 13:974688. [PMID: 36171975 PMCID: PMC9511142 DOI: 10.3389/fphys.2022.974688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Glyphosate-based herbicides (GBHs) are massively used in agriculture. However, few studies have investigated the effects of glyphosate-based herbicides on avian species although they are largely exposed via their food. Here, we investigated the potential reversibility of the effects of chronic dietary exposure to glyphosate-based herbicides in broiler hens. For 42 days, we exposed 32-week-old hens to glyphosate-based herbicides via their food (47 mg/kg/day glyphosate equivalent, glyphosate-based herbicides, n = 75) corresponding to half glyphosate’s no-observed-adverse-effect-level in birds. We compared their performance to that of 75 control animals (CT). Both groups (glyphosate-based herbicides and control animals) were then fed for 28 additional days without glyphosate-based herbicides exposure (Ex-glyphosate-based herbicides and Ex-control animals). Glyphosate-based herbicides temporarily increased the plasma glyphosate and AMPA (aminomethylphosphonic acid) concentrations. Glyphosate and aminomethylphosphonic acid mostly accumulated in the liver and to a lesser extent in the leg muscle and abdominal adipose tissue. Glyphosate-based herbicides also temporarily increased the gizzard weight and plasma oxidative stress monitored by TBARS (thiobarbituric acid reactive substances). Glyphosate-based herbicides temporarily decreased the cecal concentrations of propionate, isobutyrate and propionate but acetate and valerate were durably reduced. The cecal microbiome was also durably affected since glyphosate-based herbicides inhibited Barnesiella and favored Alloprevotella. Body weight, fattening, food intake and feeding behavior as well as plasma lipid and uric acid were unaffected by glyphosate-based herbicides. Taken together, our results show possible disturbances of the cecal microbiota associated with plasma oxidative stress and accumulation of glyphosate in metabolic tissues in response to dietary glyphosate-based herbicides exposure in broiler hens. Luckily, glyphosate-based herbicides at this concentration does not hamper growth and most of the effects on the phenotypes are reversible.
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Affiliation(s)
- Mathias Fréville
- Centre National de La Recherche Scientifique, Institut Français du Cheval et de L’Equitation, Institut National de Recherche pour L’Agriculture, L’Alimentation et L’Environnement (INRAE), Université de Tours, Physiologie de La Reproduction et des Comportements, Nouzilly, France
| | - Anthony Estienne
- Centre National de La Recherche Scientifique, Institut Français du Cheval et de L’Equitation, Institut National de Recherche pour L’Agriculture, L’Alimentation et L’Environnement (INRAE), Université de Tours, Physiologie de La Reproduction et des Comportements, Nouzilly, France
| | - Christelle Ramé
- Centre National de La Recherche Scientifique, Institut Français du Cheval et de L’Equitation, Institut National de Recherche pour L’Agriculture, L’Alimentation et L’Environnement (INRAE), Université de Tours, Physiologie de La Reproduction et des Comportements, Nouzilly, France
| | - Gaëlle Lefort
- Centre National de La Recherche Scientifique, Institut Français du Cheval et de L’Equitation, Institut National de Recherche pour L’Agriculture, L’Alimentation et L’Environnement (INRAE), Université de Tours, Physiologie de La Reproduction et des Comportements, Nouzilly, France
| | - Marine Chahnamian
- INRAE—Unité Expérimentale Pôle D’expérimentation Avicole de Tours, Nouzilly, France
| | - Christophe Staub
- INRAE—Unité Expérimentale de Physiologie Animale de L’Orfrasière (UEPAO), Nouzilly, France
| | - Eric Venturi
- INRAE—Unité Expérimentale de Physiologie Animale de L’Orfrasière (UEPAO), Nouzilly, France
| | - Julie Lemarchand
- Centre National de La Recherche Scientifique, Institut Français du Cheval et de L’Equitation, Institut National de Recherche pour L’Agriculture, L’Alimentation et L’Environnement (INRAE), Université de Tours, Physiologie de La Reproduction et des Comportements, Nouzilly, France
| | - Elise Maximin
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Alice Hondelatte
- INRAE-—Elevage Alternatif et Santé des Monogastriques (EASM), Surgères, France
| | - Olivier Zemb
- GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet-Tolosan, France
| | - Cécile Canlet
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | | | - Pascal Froment
- Centre National de La Recherche Scientifique, Institut Français du Cheval et de L’Equitation, Institut National de Recherche pour L’Agriculture, L’Alimentation et L’Environnement (INRAE), Université de Tours, Physiologie de La Reproduction et des Comportements, Nouzilly, France
| | - Joëlle Dupont
- Centre National de La Recherche Scientifique, Institut Français du Cheval et de L’Equitation, Institut National de Recherche pour L’Agriculture, L’Alimentation et L’Environnement (INRAE), Université de Tours, Physiologie de La Reproduction et des Comportements, Nouzilly, France
- *Correspondence: Joëlle Dupont,
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5
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Lefort G, Liaubet L, Marty-Gasset N, Canlet C, Vialaneix N, Servien R. Joint Automatic Metabolite Identification and Quantification of a Set of 1H NMR Spectra. Anal Chem 2021; 93:2861-2870. [PMID: 33497193 DOI: 10.1021/acs.analchem.0c04232] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metabolomics is a promising approach to characterize phenotypes or to identify biomarkers. It is also easily accessible through NMR, which can provide a comprehensive understanding of the metabolome of any living organisms. However, the analysis of 1H NMR spectrum remains difficult, mainly due to the different problems encountered to perform automatic identification and quantification of metabolites in a reproducible way. In addition, methods that perform automatic identification and quantification of metabolites are often designed to process one given complex mixture spectrum at a time. Hence, when a set of complex mixture spectra coming from the same experiment has to be processed, the approach is simply repeated independently for every spectrum, despite their resemblance. Here, we present new methods that are the first to either align spectra or to identify and quantify metabolites by integrating information coming from several complex spectra of the same experiment. The performances of these new methods are then evaluated on both simulated and real datasets. The results show an improvement in the metabolite identification and in the accuracy of metabolite quantifications, especially when the concentration is low. This joint procedure is available in version 2.0 of ASICS package.
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Affiliation(s)
- Gaëlle Lefort
- Université de Toulouse, INRAE, UR MIAT, Castanet-Tolosan F-31326, France.,GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet-Tolosan F-31326, France
| | - Laurence Liaubet
- GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet-Tolosan F-31326, France
| | | | - Cécile Canlet
- INRAE, Université de Toulouse, ENVT, Toxalim, Toulouse F-31027, France.,Axiom Platform, MetaToul-MetaboHUB, National Infrastructure for Metabolomics and Fluxomics, Toulouse F-31027, France
| | - Nathalie Vialaneix
- Université de Toulouse, INRAE, UR MIAT, Castanet-Tolosan F-31326, France
| | - Rémi Servien
- INRAE, Univ. Montpellier, LBE, 102 Avenue des étangs, Narbonne F-11100, France.,INTHERES, Université de Toulouse, INRAE, ENVT, Toulouse F-31027, France
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6
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Lefort G, Liaubet L, Canlet C, Tardivel P, Père MC, Quesnel H, Paris A, Iannuccelli N, Vialaneix N, Servien R. ASICS: an R package for a whole analysis workflow of 1D 1H NMR spectra. Bioinformatics 2020; 35:4356-4363. [PMID: 30977816 DOI: 10.1093/bioinformatics/btz248] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 03/01/2019] [Accepted: 04/08/2019] [Indexed: 12/30/2022] Open
Abstract
MOTIVATION In metabolomics, the detection of new biomarkers from Nuclear Magnetic Resonance (NMR) spectra is a promising approach. However, this analysis remains difficult due to the lack of a whole workflow that handles spectra pre-processing, automatic identification and quantification of metabolites and statistical analyses, in a reproducible way. RESULTS We present ASICS, an R package that contains a complete workflow to analyse spectra from NMR experiments. It contains an automatic approach to identify and quantify metabolites in a complex mixture spectrum and uses the results of the quantification in untargeted and targeted statistical analyses. ASICS was shown to improve the precision of quantification in comparison to existing methods on two independent datasets. In addition, ASICS successfully recovered most metabolites that were found important to explain a two level condition describing the samples by a manual and expert analysis based on bucketing. It also found new relevant metabolites involved in metabolic pathways related to risk factors associated with the condition. AVAILABILITY AND IMPLEMENTATION ASICS is distributed as an R package, available on Bioconductor. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Gaëlle Lefort
- MIAT, Université de Toulouse, INRA, Castanet Tolosan, France.,GenPhySE, Université de Toulouse, INRA, ENVT, Castanet Tolosan, France
| | - Laurence Liaubet
- GenPhySE, Université de Toulouse, INRA, ENVT, Castanet Tolosan, France
| | - Cécile Canlet
- Toxalim, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France.,Axiom Platform, MetaToul-MetaboHUB, National Infrastructure for Metabolomics and Fluxomics, Toulouse, France
| | - Patrick Tardivel
- Institute of Mathematics, University of Wroclaw, Wroclaw 50-384, Poland
| | | | | | - Alain Paris
- Unité Molécules de Communication et Adaptation des Microorganismes (MCAM), Muséum national d'Histoire naturelle, CNRS, CP54, Paris, France
| | | | | | - Rémi Servien
- INTHERES, Université de Toulouse, INRA, ENVT, Toulouse, France
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7
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Satgé C, Moreau S, Sallet E, Lefort G, Auriac MC, Remblière C, Cottret L, Gallardo K, Noirot C, Jardinaud MF, Gamas P. Reprogramming of DNA methylation is critical for nodule development in Medicago truncatula. Nat Plants 2016; 2:16166. [PMID: 27797357 DOI: 10.1038/nplants.2016.166] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 09/28/2016] [Indexed: 05/25/2023]
Abstract
The legume-Rhizobium symbiosis leads to the formation of a new organ, the root nodule, involving coordinated and massive induction of specific genes. Several genes controlling DNA methylation are spatially regulated within the Medicago truncatula nodule, notably the demethylase gene, DEMETER (DME), which is mostly expressed in the differentiation zone. Here, we show that MtDME is essential for nodule development and regulates the expression of 1,425 genes, some of which are critical for plant and bacterial cell differentiation. Bisulphite sequencing coupled to genomic capture enabled the identification of 474 regions that are differentially methylated during nodule development, including nodule-specific cysteine-rich peptide genes. Decreasing DME expression by RNA interference led to hypermethylation and concomitant downregulation of 400 genes, most of them associated with nodule differentiation. Massive reprogramming of gene expression through DNA demethylation is a new epigenetic mechanism controlling a key stage of indeterminate nodule organogenesis during symbiotic interactions.
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Affiliation(s)
- Carine Satgé
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Sandra Moreau
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Erika Sallet
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Gaëlle Lefort
- MIAT, Université de Toulouse, Plate-forme Bio-informatique Genotoul, INRA, Castanet-Tolosan, France
| | | | - Céline Remblière
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Ludovic Cottret
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Karine Gallardo
- INRA, UMR 1347 Agroécologie, BP 86510, Dijon F-21000, France
| | - Céline Noirot
- MIAT, Université de Toulouse, Plate-forme Bio-informatique Genotoul, INRA, Castanet-Tolosan, France
| | - Marie-Françoise Jardinaud
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
- INPT-Université de Toulouse, ENSAT, Avenue de l'Agrobiopole, Castanet-Tolosan, France
| | - Pascal Gamas
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
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8
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Tachon G, Lefort G, Puechberty J, Schneider A, Jeandel C, Boulot P, Prodhomme O, Meyer P, Taviaux S, Touitou I, Pellestor F, Geneviève D, Gatinois V. Discordant sex in monozygotic XXY/XX twins: a case report. Hum Reprod 2014; 29:2814-20. [PMID: 25336706 DOI: 10.1093/humrep/deu275] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report a case of discordant phenotypic sex in monozygotic twins mosaic 47,XXY/46,XX: monozygotic heterokaryotypic twins. The twins presented with cognitive and comprehension delay, behavioural and language disorders, all symptoms frequently reported in Klinefelter syndrome. Molecular zygosity analysis with several markers confirmed that the twins are in effect monozygotic (MZ). Array comparative genomic hybridization found no evidence for the implication of copy number variation in the phenotypes. Ultrasound scans of the reproductive organs revealed no abnormalities. Endocrine tests showed a low testosterone level in Twin 1 (male phenotype) and a low gonadotrophin level in Twin 2 (female phenotype) which, combined with the results from ultrasound examination, provided useful information for potentially predicting the future fertility potential of the twins. Blood karyotypes revealed the presence of a normal 46,XX cell line and an aneuploïd 47,XXY cell line in both patients. Examination of the chromosome constitutions of various tissues such as blood, buccal smear and urinary sediment not surprisingly showed different proportions for the 46,XX and 47,XXY cell lines, which most likely explains the discordant phenotypic sex and mild Klinefelter features. The most plausible underlying biological mechanism is a post-zygotic loss of the Y chromosome in an initially 47,XXY zygote. This would result in an embryo with both 46,XX and 47,XXY cells lines which could subsequently divide into two monozygotic embryos through a twinning process. The two cell lines would then be distributed differently between tissues which could result in phenotypic discordances in the twins. These observations emphasize the importance of regular paediatric evaluations to determine the optimal timing for fertility preservation measures and to detect new Klinefelter features which could appear throughout childhood in the two subjects.
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Affiliation(s)
- G Tachon
- Département de Génétique Médicale, CHRU Montpellier, Faculté de Médecine Université Montpellier 1, Montpellier, France Laboratoire de Génétique Chromosomique, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
| | - G Lefort
- Laboratoire de Génétique Chromosomique, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
| | - J Puechberty
- Département de Génétique Médicale, CHRU Montpellier, Faculté de Médecine Université Montpellier 1, Montpellier, France
| | - A Schneider
- Laboratoire de Génétique Chromosomique, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
| | - C Jeandel
- Endocrinologie Pédiatrique, Hôpital Lapeyronie, CHRU Montpellier, Montpellier, France
| | - P Boulot
- Service de Gynécologie Obstétrique, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
| | - O Prodhomme
- Service de Radiopédiatrie, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
| | - P Meyer
- Service de Neuropédiatrie, Hôpital Gui-de-Chauliac, CHRU Montpellier, INSERM U1046, Université Montpellier 1-2, Montpellier, France
| | - S Taviaux
- Laboratoire de Génétique Chromosomique, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
| | - I Touitou
- Unité Médicale des Maladies Auto-inflammatoire, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
| | - F Pellestor
- Laboratoire de Génétique Chromosomique, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
| | - D Geneviève
- Département de Génétique Médicale, CHRU Montpellier, Faculté de Médecine Université Montpellier 1, Montpellier, France
| | - V Gatinois
- Laboratoire de Génétique Chromosomique, Hôpital Arnaud de Villeneuve, CHRU Montpellier, Montpellier, France
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Bhatt SS, Manvelyan M, Moradkhani K, Hunstig F, Mrasek K, Puechberty J, Lefort G, Sarda P, Weise A, Liehr T, Pellestor F. Inverted segment size and the presence of recombination hot spot clusters matter in sperm segregation analysis. Cytogenet Genome Res 2013; 142:145-9. [PMID: 24217531 DOI: 10.1159/000356142] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2013] [Indexed: 11/19/2022] Open
Affiliation(s)
- S S Bhatt
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
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Gatinois V, Lefort G, Coubes C, Puechberty J, Schneider A, Taviaux T, Tournaire M, Di Nicola M, Girard M, Sarda P, Pellestor F. P-58 When transmission modifies the complexity of familial chromosome rearrangements. Reprod Biomed Online 2013. [DOI: 10.1016/s1472-6483(13)60121-2] [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: 11/24/2022]
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11
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Mosca AL, Pinson L, Andrieux J, Copin H, Bigi N, Puechberty J, Sarda P, Receveur A, Sevestre H, Pigeonnat S, Marle N, Payet M, Ragon C, Rousseau T, Thauvin-Robinet C, Masurel-Paulet A, Schneider A, Laurent N, Sagot P, Mugneret F, Lefort G, Faivre L, Callier P. Refining the critical region for congenital diaphragmatic hernia on chromosome 15q26 from the study of four fetuses. Prenat Diagn 2011; 31:912-4. [PMID: 21706508 DOI: 10.1002/pd.2793] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Pellestor F, Anahory T, Lefort G, Puechberty J, Liehr T, Hedon B, Sarda P. Complex chromosomal rearrangements: origin and meiotic behavior. Hum Reprod Update 2011; 17:476-94. [DOI: 10.1093/humupd/dmr010] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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13
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Kabbaj R, Leroux B, Belouadah M, Senah C, Amory C, Francois-Fiquet C, Bourelle S, Lefort G. P499 - Résultats de 169 fractures supra condyliennes traitées selon Blount. Arch Pediatr 2010. [DOI: 10.1016/s0929-693x(10)70892-7] [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: 11/16/2022]
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14
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Barresi L, Aparicio G, Belouadah M, Senah C, Guyot E, Francois-Fiquet C, Bourelle S, Lefort G. P122 - Résection des synostoses calcanéonaviculaires : le bon geste. Arch Pediatr 2010. [DOI: 10.1016/s0929-693x(10)70523-6] [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]
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15
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Lawane M, Belouadah M, Lefort G. Severe slipped capital femoral epiphysis: the Dunn's operation. Orthop Traumatol Surg Res 2009; 95:588-91. [PMID: 19931498 DOI: 10.1016/j.otsr.2009.07.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [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] [Received: 05/27/2008] [Revised: 07/02/2009] [Accepted: 07/28/2009] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Severe slipped capital femoral epiphysis inevitably results into arthritis, making surgical recovery of normal anatomy an attractive objective. This can be achieved by the procedure described by Dunn. However, all published studies report a risk of avascular necrosis. MATERIAL AND METHODS The present series assembles 25 adolescent cases aged 10 to 15 years. There were 16 cases of chronic pure displacement with several months' evolution, including nine exacerbated by an acute accident. In all cases, epiphyseal slippage was severe, between 60 degrees and 90 degrees. Postoperative traction was systematic, for 15 to 21 days. As of 1979, bone scan was prescribed 2 weeks postsurgery to study femoral head vascularization. RESULTS Reduction was anatomic, except in two cases in which the epiphysis was fixed, respectively in caput valgum and in 15 degrees varus. There were 15 good results, with clinically and radiologically normal hips, but also 10 immediate or late complications: i.e., a complications rate of 40%. The eight immediate complications (32%) comprised four necroses (16%), two of which rapidly evolved into arthritis, three chondrolyses, which all evolved into arthritis, and one mechanical complication. At less than 10 years' FU, two arthrodeses and three hip replacements were required. At long-term FU, there were two further late deteriorations, despite initial favorable clinical and X-ray outcomes. DISCUSSION In theory, the procedure described by Dunn limits the vascular risk of the displacement correction. It does, however, involve certain tricky technical points: trochanterotomy may be excessive or insufficient; posterior cervical periosteal detachment may be aggressive; and the periosteum may be too tight during the reduction. In all series studying Dunn's operation, such risk of necrotic complication is reported, at rates up to 17%. The present series had a 16% rate of necrosis which, associated with chondrolysis, caused immediate loss of joint function--unacceptable, in our view, in adolescent patients. A direct approach to the displacement, after arthrotomy, with associated anterior cuneiform neck resection, corrects the slippage while avoiding the risky first two steps of Dunn's procedure, and is our current approach of choice.
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Affiliation(s)
- M Lawane
- Pediatric Surgery Dept, American Hospital, rue Cognacq-Jay, 51100 Reims, France
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16
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Nadeau C, Gibelin H, Breheret J, Fieuzal S, Lefort G, Kraimps JL. [Virilizing ovarian tumors in the menopausal patient]. ACTA ACUST UNITED AC 2008; 145:493-5. [PMID: 19106875 DOI: 10.1016/s0021-7697(08)74664-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Virilizing ovarian tumors are rare and can occur at any age. In postmenopausal women, they commonly present with signs of masculinization. These tumors should be suspected in any patient with virilization and high testosterone levels (>1ng/mL). Tumor localization is sometimes difficult. These tumors are usually benign; surgical resection is the accepted treatment. Masculinizing consequences of hormonal secretions may be managed by cosmetologic treatments which should not be overlooked.
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Affiliation(s)
- C Nadeau
- Service de gynécologie obstétrique, CHU - Poitiers.
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Cazenave N, Peultier AS, Lefort G. L’activité physique et sportive et l’estime de soi chez les adolescents handicapés : le cas de la pathologie du pied bot. Annales Médico-psychologiques, revue psychiatrique 2008. [DOI: 10.1016/j.amp.2006.01.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Puechberty J, Rittore C, Philibert L, Lefort G, Burlet G, Bénos P, Reyftmann L, Sarda P, Touitou I. Homozygous NLRP7 mutations in a Moroccan woman with recurrent reproductive failure. Clin Genet 2008; 75:298-300. [PMID: 19054016 DOI: 10.1111/j.1399-0004.2008.01098.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Pellestor F, Bhatt S, Puechberty J, Lefort G, Liehr T, Sarda P, Hamamah S. The meiotic segregation of paracentric inversions: how breakpoint mapping can make the difference. Reprod Biomed Online 2008. [DOI: 10.1016/s1472-6483(10)61357-0] [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: 10/19/2022]
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20
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Bhatt S, Moradkhani K, Mrasek K, Puechberty J, Lefort G, Lespinasse J, Sarda P, Liehr T, Hamamah S, Pellestor F. Breakpoint characterization: a new approach for segregation analysis of paracentric inversion in human sperm. Mol Hum Reprod 2007; 13:751-6. [PMID: 17913851 DOI: 10.1093/molehr/gam048] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Paracentric inversions (PAI) are structural chromosomal rearrangements generally considered to be harmless. Nevertheless, cases of viable recombinants have been reported, indicating the interest of studying the meiotic behaviour of these chromosomal abnormalities. To date, the few studies reported have been performed using either the human-hamster fertilization system or fluorescence in situ hybridization with centromeric or telomeric DNA probes. In order to improve the assessment of meiotic segregation in PAI, we present a new strategy based on the use of bacterial artificial chromosome (BAC) probes which allow a precise localization of chromosome breakpoints and the identification of all meiotic products in human sperm. Sperm samples from carriers of an inv(5) and an inv(14) were used to test this new high-resolution procedure.
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Affiliation(s)
- S Bhatt
- INSERM U847, Montpellier, France
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21
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Jayle C, Franco S, Bris L, Lefort G, Corbi P. [Multiple myxomata: about one case]. Arch Mal Coeur Vaiss 2007; 100:878-881. [PMID: 18033020] [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: 05/25/2023]
Abstract
Among the primitive cardiac tumours, myxoma is the most common. This benign tumour is sometimes described in the context of Carney's syndrome, in which cardiac myxoma, cutaneous myxoma, lentigo and pigmentary nevus cutaneous lesions, endocrine disorders, and testicular, thyroid and hypophyseal tumours are associated. The cardiac myxomata observed are multiple, recurrent, and involve the four cardiac chambers, with a peak incidence at 25 years of age. These observations may exist in a familial context, linked to an autosomal dominant genetic factor, localized on the 17q2 chromosome with polymorphism of the PRKAR1a gene. As in the case of sporadic myxoma, rapid surgical treatment with cardio-pulmonary bypass is indicated, bearing in mind the increased risk of thromboembolic phenomena and sudden death from valvular encroachment. We report a case of bi-atrial myxoma observed in the context of Carney's syndrome.
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Affiliation(s)
- C Jayle
- Pôle coeur-poumon. Unité de chirurgie cardiaque et thoracique, CHU de Poitiers, 86021 Poitiers cedex 21.
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22
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Pellestor F, Paulasova P, Andréo B, Lefort G, Hamamah S. Multicolor PRINS and multicolor PNA. Cytogenet Genome Res 2006; 114:263-9. [PMID: 16954664 DOI: 10.1159/000094211] [Citation(s) in RCA: 5] [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] [Received: 11/03/2005] [Accepted: 12/07/2005] [Indexed: 11/19/2022] Open
Abstract
Both PRimed IN Situ (PRINS) and Peptide Nucleic Acid (PNA) technologies have emerged as research techniques, but they have quickly evolved to applications in biological diagnosis assays. The two procedures now constitute efficient alternatives to the conventional fluorescence in situ hybridization (FISH) procedure for in situ chromosome identification and aneuploidy detection. They present several advantages (specificity, speed, discriminating ability) that make them very attractive for a number of cytogenetic purposes. Multicolor PRINS and PNA protocols have been described for the specific identification of human chromosomes. Various applications have already been developed in human genetics and new adaptations are ongoing.
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Affiliation(s)
- F Pellestor
- CNRS UPR 1142, Institute of Human Genetics, Montpellier, France.
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23
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Lefort G, Moyen B, Beaufils P, de Billy B, Breda R, Cadilhac C, Clavert JM, Djian P, Fenoll B, Giacomelli MC, Gicquel P, Gicquel-Schlemmer B, Journeau P, Karger C, Laptoiu D, Lefort G, Mainard-Simard L, Moyen B, Negreanu I, Prové S, Robert H, Thaunat M, Versier G. [Osteochondritis dissecans of the femoral condyles: report of 892 cases]. Rev Chir Orthop Reparatrice Appar Mot 2006; 92:2S97-2S141. [PMID: 17088780] [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: 05/12/2023]
Abstract
PURPOSE OF THE STUDY Osteochondritis rarely involves the femoral condyles. Discovery in this localization raises several questions concerning the nature of the articular cartilage, the potential for spontaneous healing, and, in the event of a free fragment, the outcome after its loss or repair. MATERIAL AND METHODS This multicentric study included 892 pediatric and adult cases, the cutoff between two series being defined by fusion of the inferior growth plate. We excluded medical or surgical osteochondritis, cases involving the patella, osteochondral fractures, juvenile polyosteochondrosis, adult osteonecrosis, and osteochondritis beginning after the age of 50 years. RESULTS Mean age at diagnosis was 16.5 years. Mean age at treatment onset was 22 years. Pain was the predominant symptom. 80% of cases were unilateral and 70% involved the medial condyle. The anatomic lesions were different in adults, showing more advanced degradation. At diagnosis, Bedouelle stages Ia and IIb constituted 80% of the cases observed among children while in adults, 66% were Bedouelle stages IIb to IV. Outcome was very good for the majority of children with Hughston clinical stage 4 while half of the x-rays were Hughston stage 3 and 4. There were thus a large percentage of children with abnormal xrays whose disease history was not yet terminated. In the adult series, the percentages of Hughston 3 and 4 was about the same as clinically. The x-rays were rarely perfectly normal since half of the clinical stage 3 patients were noted in stage 4. An abnormal x-ray with a very good clinical presentation was observed in a very large proportion of patients. DISCUSSION It is difficult to interpret the plain x-ray and identify patients with a potentially unfavorable prognosis. We defined three radiographic classes: defect, nodule and empty notch. The Bedouelle classification uses information from all available explorations, particularly MRI and arthroscopy. Numerous therapeutic methods are used. Interruption of sports activities is the first intention treatment for children. Data in the literature and the findings of this symposium do not demonstrate any beneficial effect of immobilization on healing compared with simple abstention from sports activities. Transchondral perforation is a simple operation with low morbidity. In 85% of cases, it was used for lesions with an intact joint cartilage considered stable in 96% of cases. Healing was achieved in six months for 48% if the growth plate had not fused. The fragment was fixed in 43% of the cases with a loose cartilage fragment. Outcome was fair but degraded with the state of the joint cartilage and thus the stability of the fragment. Fixation must stabilize the fragment but not prevent further consolidation via osteogenesis. This is why deep perforations are drilled beyond the ossified area and additional osteochondral grafts are used. The Wagner operation gives less satisfactory results than more complicated procedures. Removal of a sequestrum is a simple, minimally invasive procedure with an uneventful postoperative period, but in the long term it favors osteoarthritic degradation, especially when performed in adults. Mosaic grafts give good mid term results. Morbidity is low especially if the grafts are harvested above the notch. The question of chondrolysis around the grafts was beyond the scope of this study. Chondrocyte grafting is difficult to accomplish and is expensive. The mid term results are good for large lesions. Osteotomy is logical only in the event of early stage osteoarthritic degradation. DECISION ALGORITHM IN CHILDREN AND ADOLESCENTS: If the plain x-ray reveals a defect (class I), simple interruption of sports activities should be proposed. Two situations can then develop. First, in a certain number of patients, the pain disappears as the defective zone ossifies progressively. Complete cure is frequent before the age of 12 years. In the second situation, the knee remains painful and the x-ray does not change or worsens to a class II nodular formation. In this case an MRI must be obtained to determine whether the joint cartilage is normal. There are two possibilities. First, the osteochondral fragment is viable and most probably will become completely re-integrated, particularly if the lesion is far from the growth plate. Necrosis is the other possibility. Transchondral perforations are needed in this case. If on the contrary the cartilage is altered, there is little hope for spontaneous cure. Arthroscopy may be needed to complete the exploration. Fragments, especially if there is a large surface area, must be fixed. Perforations to favor revascularization are certainly useful here. In the last situation (class III), the fragment wobbles on a thin attachment or has already fallen into the joint space. This is the type of problem generally observed in adults. The decision algorithm in adults is the same as in children for the rare nodular aspects (class II). There could be a discussion between transcartilage perforation and fixation. If there are a large number of fragments, fixation may not be fully successful and the lesion might be considered class III. For class III lesions, three operations can be used: removal of the sequestrum, mosaic bone-cartilage grafts, or autologous chondrocyte grafts. At the same follow-up, mosaic grafts give better results than excision of sequestra. It may be useful to remove sequestra in a limited number of situations: if there is just a small area of osteochondritis, the lesion is old and partially healed, or the zone is non weight-bearing. For other lesions, we favor mosaic grafts. We still do not have enough follow-up to assess the long-term outcome with these mosaic grafts, but simple excision clearly favors osteoarthritic degradation. Can chondrocytes grafts be compared with mosaic grafts? Chondrocyte grafts have been used for very large lesions and have given results similar to mosaic grafts. It might also be possible to combine fixation of a loose fragment and a mosaic graft. LESSONS FROM THIS STUDY: 1) The prognosis of osteochondritis is better before than after fusion of the growth plate but the lesion does not always heal in children. 2) Presence of osteochondritis requires complementary anatomic and functional exploration to determine the stability and the vitality of the fragment. 3) Attention must be taken to perform transchondral perforations early enough, particularly in children. 4) Screw fixation is not always sufficient. The trophicity of the fragment and its blood supply must be improved. 5) Mosaic grafts are preferable to excision of the fragment. 6) Chondrocyte grafts will be more widely used in the future.
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Affiliation(s)
- G Lefort
- Hôpital d'Enfants, CHU, 47, rue Cognacq-Jay, 51092 Reims
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Moradkhani K, Puechberty J, Lefort G, Sarda P, Hamamah S, Pellestor F. P-975. Fertil Steril 2006. [DOI: 10.1016/j.fertnstert.2006.07.1372] [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: 11/15/2022]
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25
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Lefort G, Moyen B, Beaufils P, De Billy B, Breda R, Cadilhac C, Clavert JM, Djian P, Fenoll B, Giacomelli MC, Gicquel P, Gicquel-Schlemmer B, Journeau P, Karger C, Laptoiu D, Lefort G, Mainard-Simard L, Moyen B, Negreanu I, Prové S, Robert H, Thaunat M, Versier G. L’ostéochondrite disséquante des condyles fémoraux. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/s0035-1040(06)75868-8] [Citation(s) in RCA: 5] [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: 10/28/2022]
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26
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Moradkhani K, Puechberty J, Bhatt S, Lespinasse J, Vago P, Lefort G, Sarda P, Hamamah S, Pellestor F. Rare Robertsonian translocations and meiotic behaviour: sperm FISH analysis of t(13;15) and t(14;15) translocations: a case report. Hum Reprod 2006; 21:3193-8. [PMID: 16917122 DOI: 10.1093/humrep/del314] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [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: 11/13/2022] Open
Abstract
t(13;15) and t(14;15) are two rare Robertsonian translocations. Meiotic segregation was studied in four males heterozygous for the rare Robertsonian translocations t(13;15) and t(14;15). Both locus-specific probes (LSPs) and whole chromosome painting (WCP) probes, specific to chromosomes 13, 14 and 15, were used in this study. The number of spermatozoa scored for each carrier ranged from 891 to 5000. The frequencies of normal and balanced sperm resulting from the alternate mode of segregation ranged from 77.6 to 92.8%, confirming the prevalence of alternate segregation over other segregation modes in all Robertsonian translocations. The incidences of unbalanced complements ranged from 6.7 to 20.4%, with a significant excess of disomy rates over the complementary frequencies of nullisomy. This variability might reflect differences in the location of breakpoints in translocated chromosomes, leading to the variable production of unbalanced gametes and the variable alterations of semen parameters in Robertsonian translocation carriers.
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Affiliation(s)
- K Moradkhani
- Institute of Human Genetics, CNRS, Montpellier, France
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Akakpo-Numado GK, Mal-Lawane M, Belouadah M, Kabore B, Lefort G, Daoud S. [Management of Lagrange and Rigault stage IV extension type supracondylar fracture of the humerus in children]. ACTA ACUST UNITED AC 2006; 91:664-70. [PMID: 16327672 DOI: 10.1016/s0035-1040(05)84471-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 10/21/2022]
Abstract
PURPOSE OF THE STUDY Lagrange and Rigault stage IV extension type supracondylar fracture of the humerus (Gartland and Wilkins type III) involves major displacement, making treatment difficult. Several therapeutic methods have been described but indications vary considerably between teams. We conducted a retrospective analysis in order to evaluate the results of different methods, identify the most adapted technique, and detail the conditions necessary for good results with the collar and cuff immobilization method described by Blount. MATERIAL AND METHODS Forty-four children (30 boys and 14 girls), mean age seven years six months, were treated between January 1990 and December 2001. The collar and cuff immobilization technique was used for sixteen children (including four who underwent open revision for early secondary displacement), percutaneous pinning for two, and open crossed pinning for thirty (including four who developed secondary displacement after collar and cuff immobilization). One out of two collar and cuff treatments was instituted within six hours of injury. The four secondary displacements after collar and cuff immobilization treatment occurred after fracture reduction more than six hours after injury. The proportion of open reductions increased with longer delay to reduction after injury. Mean immobilization was three and a half weeks. The Flynn criteria were used to assess outcome at mean seven years eight months follow-up. RESULTS Outcome was satisfactory in all children treated with definitive collar and cuff immobilization and by percutaneous pinning; the rate was 97% after open procedures (persistent sequelae of radial palsy in one child). DISCUSSION Early treatment before six hours increased the chances of success with the collar and cuff method which remains the technique of choice for Lagrange and Rigault stage IV extension type supracondylar fractures. In the event of failure or complications, other classical methods should be discussed, including percutaneous pinning or direct access for open osteosynthesis.
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Affiliation(s)
- G K Akakpo-Numado
- Clinique Chirurgicale Pédiatrique de l'Université, American Memorial Hospital, CHU de Reims, 47, rue Cognacq-Jay, 51092 Reims Cedex
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Mal-Lawane M, Belouadah M, Lefort G, Daoud S. [Percutaneous rotational osteoclasis in management of congenital radio-ulnar synostosis]. ACTA ACUST UNITED AC 2006; 91:719-23. [PMID: 16552993 DOI: 10.1016/s0035-1040(05)84482-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
PURPOSE OF THE STUDY Congenital radio-ulnar synostosis blocks the wrist in a position of more or less pronounced pronation. The degree of pronation and possible bilateral involvement can compromise upper limb function. We propose percutaneous osteoclasis of the antebrachial skeleton to remedy this situation PATIENTS AND METHODS We performed 12 percutaneous rotation osteoclasis procedures. The objective was to weaken the metaphysodiaphyseal cortical periosteum of one or both of the forearm bones by intermittent perforations. This enabled derotation of the wrist which was maintained for six to eight weeks in a brachiopalmar cast. RESULTS Mean correction of pronation was 51 degrees. There were no cases of vascular or nervous complications and healing was uneventful. The esthetic outcome was very satisfactory. DISCUSSION Surgery is not indicated for all cases of synostosis. We retain for surgery patients presenting pronation at 60 degrees or more. At this degree of pronation, function is greatly compromised in adolescence, particularly if there is a bilateral involvement. Compared with other techniques, percutaneous osteoclasis is a simple safe and reliable technique. Reoperation is not required to remove material. The procedure is easier in young children, preferably at the age of 3 to 7 years, before the development of a functional handicap.
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Moradkhani K, Puechberty J, Bhatt S, Vago P, Janny L, Lefort G, Hamamah S, Sarda P, Pellestor F. Meiotic segregation of rare Robertsonian translocations: sperm analysis of three t(14q;22q) cases. Hum Reprod 2006; 21:1166-71. [PMID: 16439506 DOI: 10.1093/humrep/dei477] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The t(14;22) remains one of the rare Robertsonian translocations observed in human, with an occurrence estimated at 1.2%. Three cases of rare Robertsonian translocation t(14;22) were investigated for meiotic segregation in sperm samples from male carriers using the fluorescent in situ hybridization (FISH) procedure. The three carriers included two men with an abnormal semen analysis and one with normal semen parameters. METHODS Both locus-specific probes and whole-chromosome painting probes, specific for chromosomes 14 and 22, were used in this study. The number of spermatozoa scored for each probe set ranged from 3279 to 10,024. RESULTS In the three carriers, similar frequencies, ranging from 78.53 to 81.76%, were found for normal and balanced spermatozoa resulting from alternate segregation. The total proportion of unbalanced spermatozoa resulting from adjacent modes of segregation ranged from 17.59 to 20.94%. CONCLUSION This finding confirmed the predominance of alternate segregation over other segregation types in all Robertsonian translocations and indicates a higher production of imbalances in the t(14;22) than in most of the Robertsonian translocations previously analysed. This could be related to the variable location of breakpoints in Robertsonian translocations. This breakpoint diversity could also play a role in the differences in reproductive status observed in male carriers of Robertsonian translocations.
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Affiliation(s)
- K Moradkhani
- Institute of Human Genetics, CNRS, CHU Montpellier, France
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Pellestor F, Moradkani K, Puechberty J, Lefort G, Anahory T, Sarda P, Hamamah S. O▪48 Rare Robertsonian translocations: sperm analysis of meiotic segregation. Reprod Biomed Online 2005. [DOI: 10.1016/s1472-6483(11)60269-1] [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: 11/15/2022]
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Abstract
PURPOSE OF THE STUDY Chronic shoulder instability is uncommon in patients with an immature skeleton. Some of these pediatric patients can produce their dislocation voluntarily raising the question of the traumatic or constitutional nature of the condition as well as its direction and tolerance. We report our experience with 29 patients. MATERIAL AND METHOD Over a period of 28 years, 29 children aged 5 to 15 years were treated for voluntary shoulder dislocation. The dislocation was painful and poorly tolerated in 19, affecting daily life and sports activities. Posterior dislocation was observed in 15 patients and anterior dislocation in 4, but the direction was not always easy to establish, particularly in children with ligament laxity; multiple directions were not uncommon. Rehabilitation for at least eight months did not relieve pain in 11 patients who had a sensation of a blocked, unreliable shoulder which could not be controlled voluntarily. Posterior capsulorrhaphy was performed in 8 patients and anterior capsulorrhaphy in 3. RESULTS Mean follow-up was 8 years. At last follow-up, all shoulders were stable and shoulder motion was normal with no loss of function. More than half of the children had resumed sports activities. Capsulorrhaphy was proposed when the pre-operative explorations did not reveal any bone or rim anomaly. The only preoperative finding in the operated patients was increased capsule volume, particularly in the inferior portion. Intraoperatively, ulceration of the humeral cartilage was found in two patients. Anatomic reconstruction of the capsuloligamentary structures enabled recovery of passive stability and active stability of the scapulohumeral joint, preventing further voluntary dislocation.
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Affiliation(s)
- G Lefort
- American Memorial Hospital, 47, rue Cognacq-Jay, 51092 Reims
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32
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Abstract
We report a new multicolor PRINS procedure for chromosome identification on human sperm. Based on the direct in-situ mixing of the colors of the fluorochromes (FITC, TRITC, Cascade Blue) incorporated in sequential PRINS reactions, this method facilitates rapid distinct labeling of 3 or 4 chromosomes. Each PRINS reaction consists of a unique 4 minute step for annealing and elongation. The method was successfully tested on lymphocytes and spermatozoa. Estimates of disomy were performed for chromosomes 7, 9 and 16 on sperm samples from 2 healthy donors. There was no significant difference between the disomy rates obtained with the conventional two-color PRINS technique and this new three-color procedure. By simplifying the multicolor PRINS protocol, this new protocol should facilitate the use and adaptation of PRINS to various cytogenetic applications.
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Roubertie A, Semprino M, Chaze AM, Rivier F, Humbertclaude V, Cheminal R, Lefort G, Echenne B. Neurological presentation of three patients with 22q11 deletion (CATCH 22 syndrome). Brain Dev 2001; 23:810-4. [PMID: 11720799 DOI: 10.1016/s0387-7604(01)00258-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [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: 10/17/2022]
Abstract
Chromosome 22q11 deletion (CATCH 22 syndrome or velocardiofacial syndrome) is one of the most frequent chromosomal syndromes. Neurological features other than cognitive disorders are probably the least-described part of the expanding phenotype of the 22q11 deletion. We report the neurological features of three unrelated children with a de novo deletion: one patient with an autistic disorder, a second patient with hypocalcaemic neonatal seizures and unusual persistent epileptic focus at electroencephalographic follow-up, and a third patient with atypical absence epilepsy. These observations enlarge the clinical and neurological spectrum of the 22q11 deletion. Awareness of such cases is necessary, and a diagnosis of the 22q11 deletion should be suspected in children with common neurological features associated with severe or mild dysmorphism. Diagnosis of the 22q11 deletion should be confirmed by fluorescence in situ hybridization analysis associated with standard chromosomal analysis.
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Affiliation(s)
- A Roubertie
- Pediatric Neurology, Saint Eloi Hospital, 2 Avenue Bertin Sans, 34295 Montpellier Cedex 5, France.
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34
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Paccalin M, Gouet D, Ribouleau V, Delwail V, Lefort G, Babin P, Kraimps JL, Maréchaud R. [Primary thyroid lymphoma: report of 8 cases]. Rev Med Interne 2001; 22:934-8. [PMID: 11695316 DOI: 10.1016/s0248-8663(01)00451-9] [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: 10/18/2022]
Abstract
PURPOSE Primary thyroid lymphoma (PTL) is a rare disease. Few patients are reported in the literature. We report eight new cases of PTL with long-term follow-up. RESULTS The clinical presentation was usually an enlarging neck mass squeezing surrounding structures. The diagnosis was established after thyroidectomy with histopathologic and immunohistochemical studies. Histology showed infiltrates of chronic lymphocytic thyroiditis in all cases. Three patients had thyroid lymphoma arising from mucosa-associated lymphoid tissue. One patient died postoperatively. The other seven were treated with combined chemotherapy and radiotherapy. They were still in remission after a 6-year follow-up. CONCLUSION Diagnosis of PTL should be suspected when there is a recent thyroid enlargement. Surgery associated with chemotherapy and radiation gave good results in our study with long-term follow-up, though surgery was not always recommended in previous reports.
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Affiliation(s)
- M Paccalin
- Service de médecine interne endocrinologie, CHU La Milétrie, rue de La Milétrie, 86021 Poitiers, France.
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35
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Pellestor F, Imbert I, Andréo B, Lefort G. Study of the occurrence of interchromosomal effect in spermatozoa of chromosomal rearrangement carriers by fluorescence in-situ hybridization and primed in-situ labelling techniques. Hum Reprod 2001; 16:1155-64. [PMID: 11387286 DOI: 10.1093/humrep/16.6.1155] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [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: 11/14/2022] Open
Abstract
The possibility that a chromosomal rearrangement might disturb the meiotic behaviour of chromosomes not involved in the rearrangement and favour non-disjunction is a controversial issue in human cytogenetics. Using two-colour fluorescence in-situ hybridization and primed in-situ labelling techniques, we have investigated the segregation pattern of 10 chromosomes (chromosomes 1, 4, 9, 13, 15, 16, 20, 21, X and Y) in spermatozoa from nine carriers of balanced structural rearrangements and three normal men. The patients were divided into two groups according to their semen parameters. In rearrangement carriers and normal subjects, sex chromosomes and chromosome 21 displayed a higher rate of disomy than the other chromosomes. No evidence for the occurrence of interchromosomal effect was found in the spermatozoa of fertile rearrangement carriers, but significant variations were observed for all chromosomes tested in the group of infertile translocation carriers, suggesting a direct correlation between poor quality spermatozoa and increased aneuploidy rate in this group. In fertile carriers of chromosomal rearrangements, the occurrence of non-disjunction of chromosomes not involved in the rearrangement might therefore be considered as fortuitous, whereas in infertile carriers, the risk for interchromosomal effect appears to be real and should be taken into consideration in the genetic counselling of infertile couples with a male partner carrying a chromosomal rearrangement.
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Affiliation(s)
- F Pellestor
- CNRS-UPR 1142, F-34396 Montpellier and Cytogenetics Laboratory, C.H.U. Arnaud de Villeneuve, F-34033 Montpellier, France.
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36
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Lavabre-Bertrand T, Bourquard P, Chiesa J, Berthéas MF, Lefort G, Taïb J, Lavabre-Bertrand C, Navarro M, Bureau JP. Diabetes insipidus revealing acute myelogenous leukaemia with a high platelet count, monosomy 7 and abnormalities of chromosome 3: a new entity? Eur J Haematol 2001; 66:66-9. [PMID: 11168511 DOI: 10.1034/j.1600-0609.2001.00346.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [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: 11/23/2022]
Abstract
We describe three cases of acute myeloid leukaemia revealed by diabetes insipidus. The patients were 42, 38 and 39 yr old and they had marked hyperleukocytosis, circulating immature granular cells and a normal or elevated platelet count. The leukaemia was type AML-M2 according to the FAB classification. Cytogenetic studies showed inversion of chromosome 3 (q21;q26) in 2 cases and a translocation (3;3)(q21;q29?) in the remaining case, both associated with monosomy 7. All the cerebral CT scans were normal. Complete remission was never achieved, and all three patients survived less than 14 months. Desmopressin therapy was active but treatment could not be reduced. The association of dysmegakaryopoiesis with a chromosome 3 abnormality and diabetes insipidus is probably not fortuitous and could represent a new entity.
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MESH Headings
- Adult
- Chromosome Aberrations
- Chromosome Inversion
- Chromosomes, Human, Pair 3/ultrastructure
- Chromosomes, Human, Pair 7
- Deamino Arginine Vasopressin/therapeutic use
- Diabetes Insipidus/drug therapy
- Diabetes Insipidus/etiology
- Fatal Outcome
- Female
- Humans
- Leukemia, Myeloid, Acute/blood
- Leukemia, Myeloid, Acute/complications
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/physiopathology
- Leukocytosis/etiology
- Male
- Monosomy
- Platelet Count
- Thrombocytosis/etiology
- Translocation, Genetic
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Affiliation(s)
- T Lavabre-Bertrand
- Laboratoire de Biologie cellulaire et de Cytogénétique Moléculaire, Faculté de Médecine de Montpellier-Nîmes, France.
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37
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Lefort G, Blanchet P, Chaze AM, Girardet A, Sarda P, Demaille J, Pellestor F. Cytogenetic and molecular study of a jumping translocation in a baby with Dandy-Walker malformation. J Med Genet 2001; 38:67-73. [PMID: 11334011 PMCID: PMC1734715 DOI: 10.1136/jmg.38.1.67] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
MESH Headings
- Chromosome Painting
- Chromosomes, Human, Pair 1/genetics
- Chromosomes, Human, Pair 12/genetics
- Chromosomes, Human, Pair 2/genetics
- Chromosomes, Human, Pair 5/genetics
- Chromosomes, Human, Pair 6/genetics
- Cytogenetic Analysis
- Dandy-Walker Syndrome/genetics
- Dandy-Walker Syndrome/pathology
- Humans
- In Situ Hybridization, Fluorescence
- Infant, Newborn
- Karyotyping
- Male
- Translocation, Genetic
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38
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Orsetti B, Lefort G, Boulot P, Andreo B, Pellestor F. [Application of the PRINS technique for chromosome examination in fetal cells present in maternal blood]. Ann Pathol 1998; 18:377-84. [PMID: 9864573] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Both detection and chromosomal analysis of fetal cells present in the maternal circulation can be performed using Histopaque double density gradient centrifugation followed by primed in situ (PRINS) labeling technique. This approach has been tested on blood samples from 15 pregnant women and 6 control donors with primers specific for chromosomes 9, X and Y. The cell separation technique allows recovery of both mononuclear cells and polynuclear cells with a 97% efficiency. PRINS labeling was successful in 100% cells from control blood samples. Among patient samples, 2 "false-negative" results were observed. These preliminary results suggest that the present protocol might be efficient for non-invasive prenatal chromosome analysis.
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Abstract
Prenatal diagnosis is presently performed following invasive procedures with variable risks of fetal loss; non-invasive procedures using fetal cells in maternal blood would be welcome for the early detection of fetal sex or aneuploidy. We describe a simple and rapid protocol to detect fetal cells and thus to assess fetal sex. In a first step, nucleated blood cells were separated into mononuclear and polynuclear cells using a double density gradient centrifugation. In a second step primed in situ (PRINS) labelling technique was performed to label Y-chromosomes. 15 samples were studied and correct gender assignment was made in 13/15. The number of labelled nuclei was higher in polynuclear cell phases than in mononuclear cell phases. Moreover, the polylobular aspect of labelled nuclei from polynuclear cell phases strongly suggested that they could belong to fetal polynuclear cells. The PRINS technique combines some advantages of FISH, such as visual assessment of in situ chromosome labelling and the powerful specificity and sensitivity of PCR. In association with a simple enrichment procedure it constitutes a rapid protocol for fetal cell detection, non-invasive early prenatal sex assessment, and could further be applied to detect the main viable aneuploidies.
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Affiliation(s)
- B Orsetti
- CNRS CRBM UPR 9008, Montpellier, France
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40
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Pellestor F, Girardet A, Coignet L, Andréo B, Lefort G, Charlieu JP. Cytogenetic analysis of meiotic segregation in sperm from two males heterozygous for reciprocal translocations using PRINS and humster techniques. Cytogenet Cell Genet 1998; 78:202-8. [PMID: 9465888 DOI: 10.1159/000134657] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The meiotic segregation patterns of 2 reciprocal translocations t(7;9)(q33;p21) and t(7;18)(q35;q11) were analyzed in sperm of 2 heterozygote carriers. Both sperm karyotyping and in situ PRINS labeling of sperm nuclei were performed on a sperm sample from each subject. Using the humster technique, 54 and 72 sperm chromosome complements were successfully analyzed for the t(7;9) and the t(7;18) respectively. The frequencies of alternate, adjacent 1, adjacent 2 and 3:1 segregations were 44.44%, 37.04%, 12.96% and 5.56% for the t(7;9) and 33.33%, 43.05%, 19.45% and 4.17% for the t(7;18). The PRINS procedure allowed the rapid screening of large samples of spermatozoa. However, alternate and adjacent 1 segregants were not discriminated because of the generation of centromeric signals. The segregation pattern was determined on 10,658 spermatozoa for the t(7;9) and 10,462 for the t(7;18). The distributions of segregants were similar to those obtained by sperm karyotyping. These data were pooled with results from 37 reciprocal translocations previously studied by sperm karyotyping and 6 recently investigated by FISH. The analysis of these compiled data demonstrates the particularity of the production of imbalances in male gametes; independent of the predisposition for a type of imbalance at term, there is a preferential production of adjacent 1 imbalance in sperm.
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Affiliation(s)
- F Pellestor
- CNRS ERS 155, St. Charles Hospital, Montpellier, France.
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41
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François S, Lefort G, Poli-Merol ML, Gaillard D, Roussel B, Sulmont V, Daoud S. [Vitamin-resistant rickets cured by removal of a bone tumor. Review of the literature]. Rev Chir Orthop Reparatrice Appar Mot 1998; 83:387-92. [PMID: 9452815] [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: 02/06/2023]
Abstract
PURPOSE OF THE STUDY Rickets secondary to bone or soft tissue tumors are rare in children. Majority of the reported cases occurred in adults older than thirty. This entity can be cured after tumor removal. The authors present a case in a ten year boy and literature review. MATERIAL A ten year boy complained of diffuse bone and muscle weakness for two years. A diagnosis of arthritis was made but the patient continued to complain. Serum calcium level was normal (2.33 mmol/l), phosphorus was very low (0.43 mmol/l), serum alkaline phosphatase was high, parathyroid hormone and vitamin D level were normal. Urinalysis showed abnormal phosphate excretion. METHODS The absence of malabsorption, no family history of rickets or hypophosphatermy presence of a marked excess of urinary phosphate, very low serum phosphate and normal serum calcium, vitamin D and parathyroid hormone levels led us to consider a diagnosis of tumor induced osteomalacia. Radiographs showed a large round radiolucent lesion in the left superior pubic ramus and generalized demineralisation. RESULTS We performed a complete tumor resection and the space was filled with bone graft. On histopathologic examination it was a benign mesenchymal tumor. Rapid reversal of biochemical anomalies, radiographs anomalies and clinical manifestation were observed after complete tumor resection. DISCUSSION The authors have described the tumor, the osteomalacia and the pathogenesis of tumor rickets. Histologically the most common causative tumors were vascular tumors, mesenchymal tumors and non ossifying tumors. The tumor were of bone or soft tissue origin. Clinical symptoms were muscular weakness, bone and muscle pain. Biochemically there is a very low phosphate level, a normal serum calcium level as well as a normal vitamin D and PTH level. There is a significant high level of urinal phosphate. The mechanism proposed to explain oncogenic osteomalacia includes tumor secretion of phosphaturic substance other than PTH and calcitonin. Another hypothesis is a substance interfering with normal vitamin D metabolism. The pathogenesis is not clearly defined. CONCLUSION Regardless to the mechanism of osteomalacia, complete removal of the tumor will cure the patient. A diligent search for tumors should be done in patients with vitamin D resistant rickets.
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Affiliation(s)
- S François
- Service de chirurgie pédiatrique, American Memorial Hospital, Reims
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42
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Berrada M, Lefort G. [Is surgery of popliteal cysts in children necessary? Study of a series of 128 cases]. Arch Pediatr 1997; 4:903-4. [PMID: 9345584 DOI: 10.1016/s0929-693x(97)88172-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Pellestor F, Girardet A, Andréo B, Lefort G, Charlieu JP. Incidence of chromosome 1 disomy in human sperm estimated by the primed in situ (PRINS) labeling technique. Cytogenet Cell Genet 1997; 76:192-5. [PMID: 9186522 DOI: 10.1159/000134547] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The primed in situ (PRINS) labeling technique was used to determine the rate of disomy of chromosomes 1 and 16 in sperm of two normal subjects. Two different but specific primers (alpha-satellite and satellite II) for chromosome 1 were used in parallel experiments to test the efficiency of PRINS labeling in sperm nuclei. A minimum of 10,000 sperm nuclei per chromosome primer was analyzed, leading to a total number of 41,651 scored spermatozoa. Similar rates of chromosome 1 disomy (mean values, 0.18% and 0.20%) were found in both donors when the alpha-satellite and satellite II primers were used, demonstrating the reliability of PRINS labeling on sperm nuclei. For chromosome 16, the disomy rate among the two donors ranged from 0.20% to 0.24%. This study confirms that PRINS provides a rapid and efficient method for in situ chromosomal screening of sperm nuclei.
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Abstract
OBJECTIVE To present the use of primed in situ labeling method in preimplantation diagnosis. DESIGN Double- and triple-primed in situ labeling were performed on 10 morphologically abnormal preimplantation embryos, using combinations of specific primers for chromosomes 9, 13, 16, 18, 21, X, and Y. SETTING Embryos were obtained from patients at the Montpellier University Hospital. PATIENT(S) Seven women undergoing IVF at the Montpellier University Hospital. INTERVENTION(S) Isolated interphase nuclei from poor quality preimplantation embryos were prepared for primed in situ labeling technique. MAIN OUTCOME MEASURE(S) Numerical abnormalities assessed by primed in situ labeling analysis. RESULT(S) Using directly fluorescent-labeled nucleotides, the labeling reaction for three chromosomes did not exceed 2.30 hours. Only three analyzed embryos appeared to be chromosomally normal. Mosaicism, aneupoidy, and haploidy were observed in the seven other embryos. CONCLUSION(S) The primed in situ labeling method offers a simple and reliable screening tool for gender determination and aneuploidy detection. The use of this technique may contribute to significantly improve the procedure of preimplantation diagnosis.
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MESH Headings
- Aneuploidy
- Blastocyst/ultrastructure
- Chromosome Aberrations
- Chromosomes, Human, Pair 13
- Chromosomes, Human, Pair 16
- Chromosomes, Human, Pair 18
- Chromosomes, Human, Pair 21
- Chromosomes, Human, Pair 9
- DNA Primers
- Embryonic Development
- Female
- Haploidy
- Humans
- In Situ Hybridization, Fluorescence
- Mosaicism
- Pregnancy
- X Chromosome
- Y Chromosome
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Affiliation(s)
- F Pellestor
- Centre National de la Recherche Scientifique (CNRS), Montpellier, France
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45
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Pellestor F, Girardet A, Lefort G, Andréo B, Charlieu JP. Rapid chromosome detection in human gametes, zygotes, and preimplantation embryos using the PRINS technique. J Assist Reprod Genet 1996; 13:675-80. [PMID: 8897129 DOI: 10.1007/bf02069648] [Citation(s) in RCA: 8] [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: 02/02/2023] Open
Abstract
PURPOSE The analysis of the chromosomal constitution of human gametes and embryos is of particular importance for investigation of aneuploidy occurrence and diagnostic purposes. The PRINS method constitutes an alternative to FISH for in situ chromosomal identification. We have adapted this method to human gametes, zygotes, and preimplantation embryos. RESULTS Chromosome-specific labeling was obtained in gametes, zygotes, and isolated blastomeres. Simultaneous detection of two or three chromosomes can be completed in less than 3 hr using fluorochrome-labeled nucleotides. CONCLUSIONS The PRINS technique appears to be more efficient than FISH for detection and discrimination of alpha-satellite DNA sequences. The present study demonstrates the usefulness of PRINS for chromosomal screening and preimplantation diagnosis.
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46
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Abstract
Rapid and specific identification of chromosomes can be attained in situ using the PRimed IN Situ (PRINS) labelling technique. We have adapted this technique to mature human sperm in combination with a protocol for simultaneous decondensation and denaturation of sperm nuclei. This strategy allowed us to obtain double labelling of human spermatozoa in a < 2-hr reaction. In the present study, we report the estimates of disomy for chromosomes 3, 7, 10, 11, and 17 on 64,642 spermatozoa from 2 normal males. The incidences of disomy ranged from 0.28-0.34%. There were no significant interindividual or interchromosomal differences in disomy rates.
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47
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Abstract
A case of a large vascular lesion of the skull is reported. The lesion was discovered at 22 weeks' gestation and it rapidly increased in size, reaching 8 cm a month later. Tumor echogenicity was the same as that for soft tissues and colour Doppler examination revealed intense vascularization. Cordocentesis showed features of the Kasabach-Merritt syndrome and very high plasma levels of alpha-fetoprotein. A Caesarean section was performed to avoid dystocia and led to the birth of a baby with cardiac failure in the immediate neonatal period. Biopsies of the mass led to the diagnosis of a non-malignant haemangio-endothelioma. The mass was removed and plastic surgery performed. The baby is alive and well 9 months after the operation.
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Affiliation(s)
- P Boulot
- Fetal Medicine Unit, Hopital Arnaud de Villeneuve, Montpellier, France
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48
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Pellestor F, Girardet A, Andréo B, Lefort G, Charlieu JP. The PRINS technique: potential use for rapid preimplantation embryo chromosome screening. Mol Hum Reprod 1996; 2:135-8. [PMID: 9238671 DOI: 10.1093/molehr/2.2.135] [Citation(s) in RCA: 9] [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: 02/04/2023] Open
Abstract
The primed in-situ labelling (PRINS) method is an alternative to in-situ hybridization for chromosomal detection based on the use of chromosome-specific oligonucleotide primers. Using this process, we have developed a simple and semi-automatic method for rapid in-situ detection of human chromosomes. The reaction was performed on a programmable temperature cycler. Specific labelling was obtained in < 2 h reaction. Double PRINS techniques were performed on six morphologically abnormal preimplantation embryos using primers specific for chromosomes 9, 16, 18, 21, X and Y. The majority of these embryos displayed chromosomal abnormalities. The present results demonstrate that PRINS may be a simple and reliable technique applicable in human preimplantation diagnosis.
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Abstract
We report the results of a study concerning 80 infants undergoing a pyloromyotomy over a 3-and-a-half-year period. 40 infants had a right upper quadrant transverse rectus incision and 40 infants had an umbilical fold incision. Morbidity and cosmetic aspect of the two techniques were compared. We insist on the umbilical fold incision which presents the same advantages as the classic one and a better cosmetic result.
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Affiliation(s)
- M L Poli-Merol
- Department of Pediatric Surgery, American Memorial Hospital, Reims, France
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50
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Abstract
Twenty-four cases of trisomy 13 and one case with disomy 13, but a de novo dic(13,13) (p12p12) chromosome, were examined with molecular markers to determine the origin of the extra (or rearranged) chromosome. Twenty-one of 23 informative patients were consistent with a maternal origin of the extra chromosome. Lack of a third allele at any locus in both paternal origin cases indicate a somatic duplication of the paternal chromosome occurred. Five cases had translocation trisomy: one de novo rob(13q14q), one paternally derived rob(13q14q), two de novo t(13q13q), and one mosaic de novo t(13q13q)/r(13). The patient with a paternal rob(13q14q) had a maternal meiotic origin of the trisomy; thus, the paternal inheritance of the translocation chromosome was purely coincidental. Since there is not a significantly increased risk for unbalanced offspring of a t(13q14q) carrier and most trisomies are maternal in origin, this result should not be surprising; however, it illustrates that one cannot infer the origin of translocation trisomy based on parental origin of the translocation. Lack of a third allele at any locus in one of the three t(13q13q) cases indicates that it was most likely an isochromosome of postmeiotic origin, whereas the other two cases showed evidence of recombination. One balanced (nontrisomic) case with a nonmosaic 45, -13, -13, +t(13;13) karyotype was also investigated and was determined to be a somatic Robertsonian translocation between the maternal and paternal homologues, as has been found for all balanced homologous Robertsonian translocations so far investigated. Thus, it is also incorrect to assume in de novo translocation cases that the two involved chromosomes are even from the same parent. Despite a maternal origin of the trisomy, we cannot therefore infer anything about the parental origin of the chromosomes 13 and 14 involved in the translocation in the de novo t(13q14q) case nor for the two t(13;13) chromosomes showing a meiotic origin of the trisomy.
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Affiliation(s)
- W P Robinson
- Department of Medical Genetics, University of British Columbia, Vancouver, Canada
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