1
|
Cauquil L, Beaumont M, Schmaltz-Panneau B, Liaubet L, Lippi Y, Naylies C, Bluy L, Poli M, Gress L, Lencina C, Duranthon V, Combes S. Coprophagia in early life tunes expression of immune genes after weaning in rabbit ileum. Sci Rep 2024; 14:8898. [PMID: 38632468 PMCID: PMC11024171 DOI: 10.1038/s41598-024-59591-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 04/12/2024] [Indexed: 04/19/2024] Open
Abstract
Coprophagia by suckling rabbits, i.e. ingestion of feces from their mother, reduces mortality after weaning. We hypothesized that this beneficial effect of coprophagia is immune-mediated at the intestinal level. Therefore, this study investigated immune development after weaning by analyzing the ileal transcriptome at day 35 and 49 in rabbits with differential access to coprophagia in early life. Rabbit pups had access between day 1 and 15 to (i) no feces (NF) or (ii) feces from unrelated does (Foreign Feces, FF) or (iii) feces from unrelated does treated with antibiotics (FFab). 350 genes were differentially expressed between day 35 and day 49 in suckling rabbits with access to coprophagia. These genes coded for antimicrobial peptides, a mucin, cytokines and chemokines, pattern recognition receptors, proteins involved in immunoglobulin A secretion and in interferon signaling pathway. Strikingly, prevention of coprophagia or access to feces from antibiotic-treated does in early life blunted immune development between day 35 et 49 in the ileum of rabbits. Thus, coprophagia might be crucial for the maturation of intestinal immunity in rabbits and could explain why this behavior improves survival.
Collapse
Affiliation(s)
- L Cauquil
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - M Beaumont
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - B Schmaltz-Panneau
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - L Liaubet
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - Y Lippi
- Toxalim, Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - C Naylies
- Toxalim, Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - L Bluy
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - M Poli
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - L Gress
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - C Lencina
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - V Duranthon
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - S Combes
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France.
| |
Collapse
|
2
|
Dot C, Poli M, Aptel F, Labbe A, Kodjikian L, Baillif S, Bodaghi B, Denis P. Ocular hypertension and intravitreal steroids injections, update in 2023. French guidelines of the French glaucoma society and the French ophthalmology society. J Fr Ophtalmol 2023; 46:e249-e256. [PMID: 37302867 DOI: 10.1016/j.jfo.2023.05.001] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 05/30/2023] [Indexed: 06/13/2023]
Abstract
These guidelines are a consensus of French glaucoma and retina experts on the management of ocular hypertension (OHT) observed in a third of the cases after corticosteroid implant intravitreal injections. They update the first guidelines published in 2017. Two implants are marketed in France: the dexamethasone implant (DEXi) and the fluocinolone acetonide implant (FAci). It is essential to assess the pressure status before injecting a patient with a corticosteroid implant. A molecule-specific monitoring of the intraocular pressure is needed throughout the follow-up and at the time of reinjections. Real-life studies have allowed optimizing the management algorithm by significantly increasing the safety of these implants. Corticosteroid testing with DEXi should be performed before switching to FAci to optimize pressure tolerance of FAci. Beyond topical hypotensive treatments, selective laser trabeculoplasty may be considered in the therapeutic arsenal for the management of steroid-induced OHT and subsequent injections.
Collapse
Affiliation(s)
- C Dot
- HIA Desgenettes/CHU E. Herriot, Lyon, France.
| | - M Poli
- Pôle vision, Ecully, France
| | | | - A Labbe
- CHNO des XV-XX, Paris, France
| | | | | | - B Bodaghi
- CHU de Pitié Salpétrière, Paris, France
| | - P Denis
- CHU de Croix-Rousse, Lyon, France
| |
Collapse
|
3
|
Dot C, Poli M, Aptel F, Labbe A, Kodjikian L, Baillif S, Bodaghi B, Denis P. [Intraocular pressure elevation and intravitreal steroid implant injection: State of the art in 2023. Recommendations of the French Glaucoma Society and French Ophthalmology Society [French version]]. J Fr Ophtalmol 2023; 46:803-810. [PMID: 37481449 DOI: 10.1016/j.jfo.2023.05.003] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 07/24/2023]
Abstract
These are the recommendations of French glaucoma and retina experts on the management of ocular hypertension (OHT) observed in 1/3 of cases after intravitreal steroid implant injections. They are an update to the recommendations first published in 2017. There are two implants on the French market: the dexamethasone (DEXi) and fluocinolone acetonide (FAci) implants. It is important to know the pressure status before injecting a patient with a steroid implant. Monitoring of the IOP adapted to the specific drug is necessary throughout follow-up and reinjections. Real-life studies have made it possible to optimize the management algorithm by significantly increasing the safety of use of these implants. A corticosteroid test with DEXi is necessary before switching to FAci to optimize the pressure tolerance of the latter. In addition to topical glaucoma medications, SLT laser can be considered in the therapeutic arsenal for the management of steroid-induced OHT and future injections.
Collapse
Affiliation(s)
- C Dot
- HIA Desgenettes, CHU É.-Herriot, Lyon, France.
| | - M Poli
- Pôle vision, Écully, France
| | | | - A Labbe
- CHNO des XV-XX, Paris, France
| | | | | | - B Bodaghi
- CHU Pitié-Salpêtrière, Paris, France
| | - P Denis
- CHU Croix-Rousse, Lyon, France
| |
Collapse
|
4
|
Caroselli S, Figliuzzi M, Picchetta L, Cogo F, Zambon P, Pergher I, Girardi L, Patassini C, Poli M, Bakalova D, Cimadomo D, Findikli N, Coban O, Serdarogullari M, Favero F, Bortolato S, Anastasi A, Capodanno F, Gallinelli A, Brancati F, Rienzi L, Ubaldi FM, Jimenez-Almazán J, Blesa-Jarque D, Miravet-Valenciano J, Rubio C, Simòn C, Capalbo A. Improved clinical utility of preimplantation genetic testing through the integration of ploidy and common pathogenic microdeletions analyses. Hum Reprod 2023; 38:762-775. [PMID: 36824049 DOI: 10.1093/humrep/dead033] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 01/28/2023] [Indexed: 02/25/2023] Open
Abstract
STUDY QUESTION Can chromosomal abnormalities beyond copy-number aneuploidies (i.e. ploidy level and microdeletions (MDs)) be detected using a preimplantation genetic testing (PGT) platform? SUMMARY ANSWER The proposed integrated approach accurately assesses ploidy level and the most common pathogenic microdeletions causative of genomic disorders, expanding the clinical utility of PGT. WHAT IS KNOWN ALREADY Standard methodologies employed in preimplantation genetic testing for aneuploidy (PGT-A) identify chromosomal aneuploidies but cannot determine ploidy level nor the presence of recurrent pathogenic MDs responsible for genomic disorders. Transferring embryos carrying these abnormalities can result in miscarriage, molar pregnancy, and intellectual disabilities and developmental delay in offspring. The development of a testing strategy that integrates their assessment can resolve current limitations and add valuable information regarding the genetic constitution of embryos, which is not evaluated in PGT providing new level of clinical utility and valuable knowledge for further understanding of the genomic causes of implantation failure and early pregnancy loss. To the best of our knowledge, MDs have never been studied in preimplantation human embryos up to date. STUDY DESIGN, SIZE, DURATION This is a retrospective cohort analysis including blastocyst biopsies collected between February 2018 and November 2021 at multiple collaborating IVF clinics from prospective parents of European ancestry below the age of 45, using autologous gametes and undergoing ICSI for all oocytes. Ploidy level determination was validated using 164 embryonic samples of known ploidy status (147 diploids, 9 triploids, and 8 haploids). Detection of nine common MD syndromes (-4p=Wolf-Hirschhorn, -8q=Langer-Giedion, -1p=1p36 deletion, -22q=DiGeorge, -5p=Cri-du-Chat, -15q=Prader-Willi/Angelman, -11q=Jacobsen, -17p=Smith-Magenis) was developed and tested using 28 positive controls and 97 negative controls. Later, the methodology was blindly applied in the analysis of: (i) 100 two pronuclei (2PN)-derived blastocysts that were previously defined as uniformly euploid by standard PGT-A; (ii) 99 euploid embryos whose transfer resulted in pregnancy loss. PARTICIPANTS/MATERIALS, SETTING, METHODS The methodology is based on targeted next-generation sequencing of selected polymorphisms across the genome and enriched within critical regions of included MD syndromes. Sequencing data (i.e. allelic frequencies) were analyzed by a probabilistic model which estimated the likelihood of ploidy level and MD presence, accounting for both sequencing noise and population genetics patterns (i.e. linkage disequilibrium, LD, correlations) observed in 2504 whole-genome sequencing data from the 1000 Genome Project database. Analysis of phased parental haplotypes obtained by single-nucleotide polymorphism (SNP)-array genotyping was performed to confirm the presence of MD. MAIN RESULTS AND THE ROLE OF CHANCE In the analytical validation phase, this strategy showed extremely high accuracy both in ploidy classification (100%, CI: 98.1-100%) and in the identification of six out of eight MDs (99.2%, CI: 98.5-99.8%). To improve MD detection based on loss of heterozygosity (LOH), common haploblocks were analyzed based on haplotype frequency and LOH occurrence in a reference population, thus developing two further mathematical models. As a result, chr1p36 and chr4p16.3 regions were excluded from MD identification due to their poor reliability, whilst a clinical workflow which incorporated parental DNA information was developed to enhance the identification of MDs. During the clinical application phase, one case of triploidy was detected among 2PN-derived blastocysts (i) and one pathogenic MD (-22q11.21) was retrospectively identified among the biopsy specimens of transferred embryos that resulted in miscarriage (ii). For the latter case, family-based analysis revealed the same MD in different sibling embryos (n = 2/5) from non-carrier parents, suggesting the presence of germline mosaicism in the female partner. When embryos are selected for transfer based on their genetic constitution, this strategy can identify embryos with ploidy abnormalities and/or MDs beyond aneuploidies, with an estimated incidence of 1.5% (n = 3/202, 95% CI: 0.5-4.5%) among euploid embryos. LIMITATIONS, REASONS FOR CAUTION Epidemiological studies will be required to accurately assess the incidence of ploidy alterations and MDs in preimplantation embryos and particularly in euploid miscarriages. Despite the high accuracy of the assay developed, the use of parental DNA to support diagnostic calling can further increase the precision of the assay. WIDER IMPLICATIONS OF THE FINDINGS This novel assay significantly expands the clinical utility of PGT-A by integrating the most common pathogenic MDs (both de novo and inherited ones) responsible for genomic disorders, which are usually evaluated at a later stage through invasive prenatal testing. From a basic research standpoint, this approach will help to elucidate fundamental biological and clinical questions related to the genetics of implantation failure and pregnancy loss of otherwise euploid embryos. STUDY FUNDING/COMPETING INTEREST(S) No external funding was used for this study. S.C., M.F., F.C., P.Z., I.P., L.G., C.P., M.P., D.B., J.J.-A., D.B.-J., J.M.-V., and C.R. are employees of Igenomix and C.S. is the head of the scientific board of Igenomix. A.C. and L.P. are employees of JUNO GENETICS. Igenomix and JUNO GENETICS are companies providing reproductive genetic services. TRIAL REGISTRATION NUMBER N/A.
Collapse
Affiliation(s)
- S Caroselli
- Reproductive Genetics, Igenomix Italia, Rome, Italy
| | - M Figliuzzi
- Reproductive Genetics, Igenomix Italia, Rome, Italy
| | | | - F Cogo
- Reproductive Genetics, Igenomix Italia, Marostica, Italy
| | - P Zambon
- Reproductive Genetics, Igenomix Italia, Marostica, Italy
| | - I Pergher
- Reproductive Genetics, Igenomix Italia, Marostica, Italy
| | - L Girardi
- Reproductive Genetics, Igenomix Italia, Marostica, Italy
| | - C Patassini
- Reproductive Genetics, Igenomix Italia, Marostica, Italy
| | - M Poli
- Reproductive Genetics, Igenomix Italia, Rome, Italy
| | - D Bakalova
- Reproductive Genetics, Igenomix UK, Guildford, UK
| | - D Cimadomo
- ART Center, Clinica Valle Giulia-GeneraLife IVF, Rome, Italy
| | - N Findikli
- Embryology Laboratory, Bahceci Fulya IVF Centre, Istanbul, Turkey
| | - O Coban
- Embryology Laboratory, British Cyprus IVF Hospital, Nicosia, Cyprus
| | - M Serdarogullari
- Department of Histology and Embryology, Faculty of Medicine Cyprus International University, Nicosia, North Cyprus
| | - F Favero
- ART Center, ARC-STER, Venice, Italy
| | | | - A Anastasi
- Physiopathology of Human Reproduction Center, Hospital "del Delta", Lagosanto, Italy
| | - F Capodanno
- Physiopathology of Human Reproduction Center, Hospital "del Delta", Lagosanto, Italy
| | - A Gallinelli
- Physiopathology of Human Reproduction Center, Hospital "del Delta", Lagosanto, Italy
| | - F Brancati
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.,IRCCS San Raffaele Roma, Roma, Italy
| | - L Rienzi
- ART Center, Clinica Valle Giulia-GeneraLife IVF, Rome, Italy.,Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Urbino, Italy
| | - F M Ubaldi
- ART Center, Clinica Valle Giulia-GeneraLife IVF, Rome, Italy
| | | | | | | | - C Rubio
- Reproductive Genetics, Igenomix Spain, Valencia, Spain
| | - C Simòn
- Reproductive Genetics, Igenomix Foundation, Valencia, Spain.,Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA.,Department of Obstetrics and Gynecology, Harvard University, Harvard School of Medicine, Boston, MA, USA.,Department of Obstetrics and Gynecology, Valencia University and INCLIVA, Valencia, Spain
| | | |
Collapse
|
5
|
Capalbo A, Buonaiuto S, Figliuzzi M, Damaggio G, Girardi L, Caroselli S, Poli M, Patassini C, Cetinkaya M, Yuksel B, Azad A, Grøndahl M, Hoffmann E, Simón C, Colonna V, Kahraman S. A standardized approach for case selection and genomic data analysis of maternal exomes for the diagnosis of oocyte maturation and early embryonic developmental arrest in IVF. Reprod Biomed Online 2022; 45:508-518. [DOI: 10.1016/j.rbmo.2022.05.009] [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] [Received: 02/05/2022] [Accepted: 05/17/2022] [Indexed: 11/15/2022]
|
6
|
Baudu J, Gerbaud E, Catargi B, Montaudon M, Beauvieux MC, Sagnier S, Debruxelles S, Renou P, Poli M, Olindo S, Couture M, Marnat G, Sibon I. High glycemic variability: An underestimated determinant of stroke functional outcome following large vessel occlusion. Rev Neurol (Paris) 2022; 178:732-740. [DOI: 10.1016/j.neurol.2021.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 12/19/2022]
|
7
|
Matheoud R, Richetta E, Zorz A, Poli M, Rossato M, Ramadan R, Pellerito R, Sacchetti G, Cuppari L. Optimization of 18F-FDG oncological examination on a TOF-PET/CT scanner: results of a multicenter preliminary study. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00194-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
8
|
Intermite G, Richetta E, Valentini D, Rienzo A, Poli M, Codegone A, Elia B, Pellerito R, Muni A, Stasi M. Red marrow dosimetry in 131I treatment of metastatic thyroid cancer: comparison of mathematical models. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00192-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
9
|
Girardi L, Serdaroğulları M, Patassini C, Caroselli S, Costa M, Pergher I, Çoban Ö, Findikli N, Boynukalin K, Poli M, Bahceci M, Simón C, Capalbo A. P–530 The use of wide thresholds for detecting intermediate chromosomal CNV up to 80% doesn’t improve PGT-A ability to discriminate true mosaic from uniformly aneuploid embryos. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.529] [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: 11/14/2022] Open
Abstract
Abstract
Study question
What is the effect of varying diagnostic thresholds on the accuracy of Next Generation Sequencing (NGS)-based preimplantation genetic testing for aneuploidies (PGT-A)?
Summary answer
When single trophectoderm biopsies are tested, the employment of 80% upper threshold increases mosaic calls and false negative aneuploidy results compared to more stringent thresholds.
What is known already
Trophectoderm (TE) biopsy coupled with NGS-based PGT-A technologies are able to accurately predict Inner Cell Mass’ (ICM) constitution when uniform whole chromosome aneuploidies are considered. However, minor technical and biological inconsistencies in NGS procedures and biopsy specimens can result in subtle variability in analytical results. In this context, the stringency of thresholds employed for diagnostic calls can lead to incorrect classification of uniformly aneuploid embryos into the mosaic category, ultimately affecting PGT-A accuracy. In this study, we evaluated the diagnostic predictivity of different aneuploidy classification criteria by employing blinded analysis of chromosome copy number values (CNV) in multifocal blastocyst biopsies.
Study design, size, duration
The accuracy of different aneuploidy diagnostic cut-offs was assessed comparing chromosomal CNV in intra-blastocysts multifocal biopsies. Enrolled embryos were donated for research between June and September 2020. The Institutional Review Board at the Near East University approved the study (project: YDU/20l9/70–849). Embryos diagnosed with uniform chromosomal alterations (single or multiple) in their clinical TE biopsy (n = 27) were disaggregated into 5 portions: the ICM and 4 TE biopsies. Overall, 135 specimens were collected and analysed.
Participants/materials, setting, methods
Twenty-seven donated blastocysts were warmed and disaggregated in TE biopsies and ICM (n = 135 biopsies). PGT-A analysis was performed using Ion ReproSeq PGS kit and Ion S5 sequencer (ThermoFisher). Sequencing data were blindly analysed with Ion-Reporter software. Intra-blastocyst comparison of raw NGS data was performed employing different thresholds commonly used for aneuploidy classification. CNV for each chromosome were reported as aneuploid according to 70% or 80% thresholds. Categorical variables were compared using Fisher’s exact test.
Main results and the role of chance
In this study, a total of 50 aneuploid patterns in 27 disaggregated embryos were explored. Single TE biopsy results were considered as true positive when they displayed the same alteration detected in the ICM at levels above the 70% or 80% thresholds. Alternatively, alterations detected in the euploid or mosaic range were considered as false negative aneuploidy results. When the 70% threshold was applied, aneuploidy findings were confirmed in 94.5% of TE biopsies analyzed (n = 189/200; 95%CI=90.37–37.22), while 5.5% showed a mosaic profile (50–70%) but uniformly abnormal ICM. Positive (PPV) and negative predictive value (NPV) per chromosome were 100.0% (n = 189/189; 95%CI=98.07–100.00) and 99.5% (n = 2192/2203; 95%CI=99.11–99.75) respectively. When the upper cut-off was experimentally placed at 80% of abnormal cells, a significant decrease (p-value=0.0097) in the percentage of confirmed aneuploid calls was observed (86.5%; n = 173/200; 95%CI=80.97–90.91), resulting in mosaicism overcalling, especially in the high range (50–80%). Less stringent thresholds led to extremely high PPV (100.0%; n = 173/173; 95%CI=97.89–100.00), while NPV decreased to 98.8% (n = 2192/2219; 95%CI=98.30–99.23). Furthermore, no additional true mosaic patterns were identified with the use of wide range thresholds for aneuploidy classification.
Limitations, reasons for caution
This approach involved the analysis of aneuploidy CNV thresholds at the embryo level and lacked from genotyping-based confirmation analysis. Moreover, aneuploid embryos with known meiotic partial deletion/duplication were not included.
Wider implications of the findings: The use of wide thresholds for detecting intermediate chromosomal CNV up to 80% doesn’t improve PGT-A ability to discriminate true mosaic from uniformly aneuploid embryos, lowering overall diagnostic accuracy. Hence, a proportion of the embryos diagnosed as mosaic using wide calling thresholds may actually be uniformly aneuploid and inadvertently transferred.
Trial registration number
N/A
Collapse
Affiliation(s)
- L Girardi
- Igenomix Italia, Reproductive genetics, Marostica, Italy
| | - M Serdaroğulları
- Cyprus International University, Faculty of Medicine, Northern Cyprus- via Mersin 10, Turkey
| | - C Patassini
- Igenomix Italia, Reproductive genetics, Marostica, Italy
| | - S Caroselli
- Igenomix Italia, Reproductive genetics, Marostica, Italy
| | - M Costa
- Igenomix Italia, Reproductive genetics, Marostica, Italy
| | - I Pergher
- Igenomix Italia, Reproductive genetics, Marostica, Italy
| | - Ö Çoban
- British Cyprus IVF Hospital, Embryology Laboratory, Nicosia, Cyprus
| | - N Findikli
- Bahceci Fulya IVF Centre, Embryology Laboratory, Istanbul, Turkey
| | - K Boynukalin
- Bahceci Fulya IVF Centre, Infertility Clinic, Istanbul, Turkey
| | - M Poli
- Igenomix Italia, Reproductive genetics, Marostica, Italy
| | - M Bahceci
- Bahceci Fulya IVF Centre, Infertility Clinic, Istanbul, Turkey
| | - C Simón
- Igenomix Foundation, Reproductive genetics, Valencia, Spain
- Baylor College of Medicine, Department of Obstetrics and Gynecology, Houston-TX, USA
- Harvard University- Harvard School of Medicine, Department of Obstetrics and Gynecology, Boston, USA
- Valencia University and INCLIVA, Department of Obstetrics and Gynecology, Valencia, Spain
| | - A Capalbo
- Igenomix Italia, Reproductive genetics, Marostica, Italy
- Igenomix Foundation, Reproductive genetics, Valencia, Spain
| |
Collapse
|
10
|
Caroselli S, Girardi L, Poli M, Cogo F, Patassini C, Pergher I, Costa M, Miravet Valenciano JA, Jimenez Almazan J, Baù D, Rubio C, Blesa Jarque D, Simòn C, Capalbo A. P-536 Pre-selected for an award: Validation of a Next Generation Sequencing (NGS) workflow integrating simultaneous analysis of ploidy, microdeletions and de novo monogenic diseases for expanded preimplantation genetic testing (PGT). Hum Reprod 2021. [DOI: 10.1093/humrep/deab125.055] [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: 11/12/2022] Open
Abstract
Abstract
Study question
Can major de novo genetic and chromosomal abnormalities (i.e., ploidy, microdeletions) be effectively tested on a single embryo biopsy specimen using an integrated NGS approach?
Summary answer
The integrated NGS workflow provided high accuracy for multilevel chromosome and genetic abnormalities analysis based on single biopsies expanding PGT informativity to de novo conditions.
What is known already
Current NGS-based methodologies employed in PGT for aneuploidy (PGT-A) do not detect embryo ploidy level nor frequent pathogenic de novo microdeletions below resolution limits. Moreover, despite their considerable incidence and adverse pregnancy outcomes, de novo mutations causing severe dominant monogenic fetal structural defects (FSD) are not investigated during PGT. The development of a single biopsy specimen-based PGT-A sequencing strategy that integrates ploidy and de novo microdeletions/mutations assessment would significantly widen PGT-A diagnostic scope and technical capabilities. This comprehensive approach would provide additional valuable genetic information of unquestionable clinical utility to further refine embryo selection process among those showing euploid profiles.
Study design, size, duration
Chromosomal conditions were validated using 24 embryo rebiopsies and 5 cell lines with both known ploidy level and known microdeletions (-4p; -8q; -1p; -22q; -5p; -15q; -11q). Genotyping for monogenic conditions was validated using 5 genomic DNA samples (33pg/µl) carrying known pathogenic Single Nucleotide Variants (SNVs) in COL1A1, SOS1, PTPN11, TSC2 and FGFR2 genes. To assess technical performance across identified SNPs, genotyping accuracy was evaluated on 17 samples from 5 embryos and 2 cell lines.
Participants/materials, setting, methods
Thirty-two de novo dominant monogenic conditions with FSD and strong gene-disease relationship were tested using a multiplex PCR panel with sequencing for the genes’ whole coding region. Eight common microdeletions ( < 10Mb) syndromes (Wolf-Hirshorn, Langer-Geidion, 1p36 deletion, De George, Cri-du-Chat, Prader-Willy/Angelman, Jacobsen) were tested using B-allelic frequency (BAF) of 356 highly polymorphic Single Nucleotide Polymorphisms (SNPs). These SNPs were also used for ploidy assessment. Library preparation and sequencing were performed on the IonTorrent S5 (ThermoFisher).
Main results and the role of chance
Blinded NGS data analysis confirmed the ploidy status in all (19) samples with known constitution (8 diploids, 7 polyploids, 4 haploids). Specifically, the proportion of heterozygote calls (BAF 40%-60%) was 60.9% (95%CI:47.6-72.8) for diploid samples and < 1% for haploid samples(P < 0.001). All polyploid samples showed a typical splitting of BAF among 3 experimental ranges (20-40%,40%-60%,60-80%): 34.1%,18.2% and 47.7%, respectively. For microdeletions, all interstitial SNPs genotyped showed a loss of heterozygosity (LOH) as expected. The analysis of positive controls consisting of 20 blastocyst rebiopsies and 3 cell lines (-4p: n = 3; -8q: n = 4; -1p: n = 5; -22q: n = 3; -5p: n = 2; -15q: n = 4; -11q: n = 2), allowed to accurately characterize 6 out of the 7 microdeletions (18/23 samples). In particular, all interstitial SNPs genotyped showed a LOH, while diploid controls showed an overall heterozygosity of 30.9% (average number of hetSNP x deletion = 9/28). Only the very small telomeric 1p36 region failed to properly amplify. For monogenic conditions, sequencing analysis of 5 positive gDNA controls confirmed the presence of 4 known SNVs, whilst only 1 did not achieve the minimum coverage for variant calling. Moreover, 4 additional de novo SNVs detected by sequencing analysis in the gene panel on 8 blastocyst rebiopsies were all confirmed by qPCR/Taqman assays.
Limitations, reasons for caution
Positive controls were not available for all genes and microdeletions included in the panel. Moreover, inefficient amplification has affected some target regions and further optimization will be required. However, analytical performance on technical and biological replicates were highly promising for the tested conditions both cell lines and trophectoderm biopsies.
Wider implications of the findings
This study demonstrates that the integration of genotyping and chromosomal analyses can be efficiently achieved in the same NGS workflow. This approach can be employed to expand PGT diagnostic scope to conditions undetectable in parents due to their de novo onset, or that are below the standard PGT-A resolution.
Trial registration number
N/A
Collapse
Affiliation(s)
- S Caroselli
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - L Girardi
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - M Poli
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - F Cogo
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - C Patassini
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - I Pergher
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - M Costa
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | | | | | - D Baù
- Igenomix Spain, Bioinformatics Department, Valencia, Spain
| | - C Rubio
- Igenomix Spain, PGT-A Research, Valencia, Spain
| | | | - C Simòn
- Igenomix Foundation, Reproductive Genetics, Valencia, Spain
- Baylor College of Medicine, Department of Obstetrics and Gynecology, Houston-TX, USA
- Harvard University-Harvard School of Medicine, Department of Obstetrics and Gynecology, Boston, USA
- Valencia University and INCLIVA, Department of Obstetrics and Gynecology, Valencia, Spain
| | - A Capalbo
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
- Igenomix Foundation, Reproductive Genetics, Valencia, Spain
| |
Collapse
|
11
|
Caroselli S, Girardi L, Poli M, Cogo F, Patassini C, Pergher I, Costa M, Mirave. Valenciano JA, Jimene. Almazan J, Baù D, Rubio C, Bles. Jarque D, Simòn C, Capalbo A. P–536 Validation of a Next Generation Sequencing (NGS) workflow integrating simultaneous analysis of ploidy, microdeletions and de novo monogenic diseases for expanded preimplantation genetic testing (PGT). Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.535] [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: 11/13/2022] Open
Abstract
Abstract
Study question
Can major de novo genetic and chromosomal abnormalities (i.e., ploidy, microdeletions) be effectively tested on a single embryo biopsy specimen using an integrated NGS approach?
Summary answer
The integrated NGS workflow provided high accuracy for multilevel chromosome and genetic abnormalities analysis based on single biopsies expanding PGT informativity to de novo conditions.
What is known already
Current NGS-based methodologies employed in PGT for aneuploidy (PGT-A) do not detect embryo ploidy level nor frequent pathogenic de novo microdeletions below resolution limits. Moreover, despite their considerable incidence and adverse pregnancy outcomes, de novo mutations causing severe dominant monogenic fetal structural defects (FSD) are not investigated during PGT. The development of a single biopsy specimen-based PGT-A sequencing strategy that integrates ploidy and de novo microdeletions/mutations assessment would significantly widen PGT-A diagnostic scope and technical capabilities. This comprehensive approach would provide additional valuable genetic information of unquestionable clinical utility to further refine embryo selection process among those showing euploid profiles.
Study design, size, duration
Chromosomal conditions were validated using 24 embryo rebiopsies and 5 cell lines with both known ploidy level and known microdeletions (–4p; –8q; –1p; –22q; –5p; –15q; –11q). Genotyping for monogenic conditions was validated using 5 genomic DNA samples (33pg/µl) carrying known pathogenic Single Nucleotide Variants (SNVs) in COL1A1, SOS1, PTPN11, TSC2 and FGFR2 genes. To assess technical performance across identified SNPs, genotyping accuracy was evaluated on 17 samples from 5 embryos and 2 cell lines.
Participants/materials, setting, methods
Thirty-two de novo dominant monogenic conditions with FSD and strong gene-disease relationship were tested using a multiplex PCR panel with sequencing for the genes’ whole coding region. Eight common microdeletions (<10Mb) syndromes (Wolf-Hirshorn, Langer-Geidion, 1p36 deletion, De George, Cri-du-Chat, Prader-Willy/Angelman, Jacobsen) were tested using B-allelic frequency (BAF) of 356 highly polymorphic Single Nucleotide Polymorphisms (SNPs). These SNPs were also used for ploidy assessment. Library preparation and sequencing were performed on the IonTorrent S5 (ThermoFisher).
Main results and the role of chance
Blinded NGS data analysis confirmed the ploidy status in all (19) samples with known constitution (8 diploids, 7 polyploids, 4 haploids). Specifically, the proportion of heterozygote calls (BAF 40%–60%) was 60.9% (95%CI:47.6–72.8) for diploid samples and <1% for haploid samples(P < 0.001). All polyploid samples showed a typical splitting of BAF among 3 experimental ranges (20–40%,40%–60%,60–80%): 34.1%,18.2% and 47.7%, respectively. For microdeletions, all interstitial SNPs genotyped showed a loss of heterozygosity (LOH) as expected. The analysis of positive controls consisting of 20 blastocyst rebiopsies and 3 cell lines (–4p: n = 3; –8q: n = 4; –1p: n = 5; –22q: n = 3; –5p: n = 2; –15q: n = 4; –11q: n = 2), allowed to accurately characterize 6 out of the 7 microdeletions (18/23 samples). In particular, all interstitial SNPs genotyped showed a LOH, while diploid controls showed an overall heterozygosity of 30.9% (average number of hetSNP x deletion=9/28). Only the very small telomeric 1p36 region failed to properly amplify. For monogenic conditions, sequencing analysis of 5 positive gDNA controls confirmed the presence of 4 known SNVs, whilst only 1 did not achieve the minimum coverage for variant calling. Moreover, 4 additional de novo SNVs detected by sequencing analysis in the gene panel on 8 blastocyst rebiopsies were all confirmed by qPCR/Taqman assays.
Limitations, reasons for caution
Positive controls were not available for all genes and microdeletions included in the panel. Moreover, inefficient amplification has affected some target regions and further optimization will be required. However, analytical performance on technical and biological replicates were highly promising for the tested conditions both cell lines and trophectoderm biopsies.
Wider implications of the findings: This study demonstrates that the integration of genotyping and chromosomal analyses can be efficiently achieved in the same NGS workflow. This approach can be employed to expand PGT diagnostic scope to conditions undetectable in parents due to their de novo onset, or that are below the standard PGT-A resolution.
Trial registration number
N/A
Collapse
Affiliation(s)
- S Caroselli
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - L Girardi
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - M Poli
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - F Cogo
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - C Patassini
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - I Pergher
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | - M Costa
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
| | | | | | - D Baù
- Igenomix Spain, Bioinformatics Department, Valencia, Spain
| | - C Rubio
- Igenomix Spain, PGT-A Research, Valencia, Spain
| | | | - C Simòn
- Igenomix Foundation, Reproductive Genetics, Valencia, Spain
- Baylor College of Medicine, Department of Obstetrics and Gynecology, Houston-TX, USA
- Harvard University-Harvard School of Medicine, Department of Obstetrics and Gynecology, Boston, USA
- Valencia University and INCLIVA, Department of Obstetrics and Gynecology, Valencia, Spain
| | - A Capalbo
- Igenomix Italia, Reproductive Genetics, Marostica, Italy
- Igenomix Foundation, Reproductive Genetics, Valencia, Spain
| |
Collapse
|
12
|
Capalbo A, Fabiani M, Caroselli S, Poli M, Girardi L, Patassini C, Favero F, Cimadomo D, Vaiarelli A, Simon C, Rienzi LF, Ubaldi FM. Clinical validity and utility of preconception expanded carrier screening for the management of reproductive genetic risk in IVF and general population. Hum Reprod 2021; 36:2050-2061. [PMID: 34021342 DOI: 10.1093/humrep/deab087] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/15/2021] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION What is the clinical validity and utility of preconception Expanded Carrier Screening (ECS) application on the management of prospective parents? SUMMARY ANSWER The high detection rate of at-risk couples (ARCs) and the high proportion opting for IVF/preimplantation genetic testing (PGT) treatment demonstrate the clinical utility of ECS in the preconception space in IVF and general population. WHAT IS KNOWN ALREADY About 2-4% of couples are at risk of conceiving a child with an autosomal recessive or X-linked genetic disorder. In recent years, the increasing cost-effectiveness of genetic diagnostic techniques has allowed the creation of ECS panels for the simultaneous detection of multiple recessive disorders. Comprehensive preconception genetic screening holds the potential to significantly improve couple's genetic risk assessment and reproductive planning to avoid detectable inheritable genetic offspring. STUDY DESIGN, SIZE, DURATION A total of 3877 individuals without a family history of genetic conditions were analyzed between January 2017 and January 2020. Of the enrolled individuals, 1212 were gamete donors and 2665 were patients planning on conceiving from both the IVF and the natural conception group. From the non-donor cohort, 1133 were analyzed as individual patients, while the remaining ones were analyzed as couples, for a total of 766 couples. PARTICIPANTS/MATERIALS, SETTING, METHODS A focused ECS panel was developed following American College of Obstetrics and Gynecology ACOG-recommended criteria (prevalence, carrier rate, severity), including highly penetrant severe childhood conditions. Couples were defined at-risk when both partners carried an autosomal recessive pathogenic/likely pathogenic variant (PLP) on the same gene or when the woman was a carrier of an X-linked PLP variant. ARC detection rate defined the clinical validity of the ECS approach. Clinical utility was evaluated by monitoring ARCs reproductive decision making. MAIN RESULTS AND THE ROLE OF CHANCE A total of 402 individuals (10.4%) showed PLP for at least one of the genes tested. Among the 766 couples tested, 173 showed one carrier partner (22.6%), whereas 20 couples (2.6%) were found to be at increased risk. Interestingly, one ARC was identified as a result of cascade testing in the extended family of an individual carrying a pathogenic variant on the Survival Of Motor Neuron 1SMN1 gene. Of the identified ARCs, 5 (0.7%) were at risk for cystic fibrosis, 5 (0.7%) for fragile X syndrome, 4 (0.5%) for spinal muscular atrophy, 4 (0.5%) for Beta-Thalassemia/Sickle Cell Anemia, 1 (0.1%) for Smith-Lemli-Opitz Syndrome and 1 (0.1%) for Duchenne/Becker Dystrophy. Fifteen ARCs were successfully followed up from both the IVF and the natural conception groups. All of these (15/15) modified their reproductive planning by undergoing ART with Preimplantation Genetic Testing for Monogenic disease and Aneuploidies (PGT-M and PGT-A). To date, 6/15 (40%) couples completed their PGT cycle with euploid/unaffected embryos achieving a pregnancy after embryo transfer and three of them have already had an unaffected baby. LIMITATIONS, REASONS FOR CAUTION The use of a limited panel of core gene-disease pairs represents a limitation on the research perspective as it can underestimate the rate of detectable carriers and ARCs in this cohort of prospective parents. Expanding the scope of ECS to a larger panel of conditions is becoming increasingly feasible, thanks to a persistent technological evolution and progressive cataloging of gene-disease associations. WIDER IMPLICATIONS OF THE FINDINGS These results highlight the potential clinical validity and utility of ECS in reducing the risk of a pregnancy affected by a detectable inheritable genetic condition. The steady reduction in the costs of genetic analyses enables the expansion of monogenic testing/screening applications at the preimplantation stage, thus, providing valid decisional support and reproductive autonomy to patients, particularly in the context of IVF. STUDY FUNDING/COMPETING INTEREST(S) No external funding was used for this study. A.C., M.F., S.C., M.P., L.G., and C.P. are employees of Igenomix Italy. C.S. is the head of the scientific board of Igenomix. TRIAL REGISTRATION NUMBER N/A.
Collapse
Affiliation(s)
- A Capalbo
- Igenomix Italy, Marostica, Italy.,Igenomix Foundation, INCLIVA, Valencia, Spain
| | | | | | - M Poli
- Igenomix Italy, Marostica, Italy
| | | | | | | | - D Cimadomo
- GeneraLife, Center for Reproductive Medicine, Clinica Valle Giulia, Rome, Italy
| | - A Vaiarelli
- GeneraLife, Center for Reproductive Medicine, Clinica Valle Giulia, Rome, Italy
| | - C Simon
- Igenomix Italy, Marostica, Italy.,Igenomix Foundation, INCLIVA, Valencia, Spain.,Department of Obstetrics and Gynecology, University of Valencia, Valencia, Spain.,Department of Obstetrics and Gynecology BIDMC, Harvard University, Cambridge, MA, USA
| | - L F Rienzi
- GeneraLife, Center for Reproductive Medicine, Clinica Valle Giulia, Rome, Italy
| | - F M Ubaldi
- GeneraLife, Center for Reproductive Medicine, Clinica Valle Giulia, Rome, Italy
| |
Collapse
|
13
|
Villain M, Sibon I, Renou P, Poli M, Swendsen J. Depression and routinization following stroke. Rev Neurol (Paris) 2021; 177:964-968. [PMID: 34215428 DOI: 10.1016/j.neurol.2020.08.012] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 08/19/2020] [Accepted: 08/28/2020] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Post-stroke depression is a frequent complication of stroke that has detrimental consequences for quality of life and functional outcomes. Daily life routines may increase feelings of security for some individuals confronted with age-related health concerns, but little information is available concerning their role following stroke. The aim of this investigation was to examine the association of depression and other psychological variables at hospitalization for stroke and behavioral routines and mood symptoms three months later using Ecological Momentary Assessment (EMA). METHODS Forty-four patients with minor ischemic stroke were consecutively enrolled in the study. Stroke severity, handicap, depression and anxiety symptoms were assessed at baseline. EMA data acquired three months later were coded for the repetition of specific activities or behaviors occurring within the same time period across days. RESULTS Higher baseline depression and anxiety symptom severity were significantly associated with increased behavioral routines three months after stroke. The occurrence of routines was associated with a higher level of depressive symptomatology over subsequent hours of the day. CONCLUSION The findings demonstrate a general correlation between baseline psychological vulnerability and routines three months later, but within-day analyses suggest that routines may increase the risk of negative affect in this vulnerable population.
Collapse
Affiliation(s)
- M Villain
- Service de médecine physique et réadaptation, Pitié-Salpêtrière, AP-HP, Paris, France; GRC n(o) 24, handicap moteur et cognitif & réadaptation (HaMCRe), Sorbonne université, Paris, France
| | - I Sibon
- Université de Bordeaux, INCIA, CNRS UMR5287, 33400 Talence, France; CHU de Bordeaux, pôle de neurosciences cliniques, hôpital Pellegrin, 33076 Bordeaux, France
| | - P Renou
- Université de Bordeaux, INCIA, CNRS UMR5287, 33400 Talence, France
| | - M Poli
- Université de Bordeaux, INCIA, CNRS UMR5287, 33400 Talence, France
| | - J Swendsen
- Université de Bordeaux, INCIA, CNRS UMR5287, 33400 Talence, France; École pratique des Hautes Études, Paris, France.
| |
Collapse
|
14
|
Liegey JS, Sagnier S, Debruxelles S, Poli M, Olindo S, Renou P, Rouanet F, Moal B, Tourdias T, Sibon I. Influence of inflammatory status in the acute phase of stroke on post-stroke depression. Rev Neurol (Paris) 2021; 177:941-946. [PMID: 33610348 DOI: 10.1016/j.neurol.2020.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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] [Received: 08/08/2020] [Revised: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Thirty percent of stroke patients will suffer from post-stroke depression (PSD). Recent data suggest that inflammation accounts for a substantial amount of depression. Our primary objective was to assess the association between standard inflammation biomarkers in the acute phase of stroke and PSD at three months. The secondary objective was to elaborate a predictive model of PSD from clinical, biological and radiological data. METHODS We performed a retrospective analysis of a single-centre cohort of stroke patients with a three-month follow-up. Serum levels of C-reactive protein (CRP), fibrinogen, leukocyte count and neutrophil to lymphocyte ratio (NLR) were tested at admission and at peak. Mood was assessed at three months using the depression sub-scale of the Hospital Anxiety and Depression Scale (HADS). Association between inflammation biomarkers and HADS was evaluated with multi-linear regression adjusted on clinical and radiological parameters. Logistic predictive models of PSD at three months, with and without inflammation biomarkers, were compared. RESULTS Three hundred and forty-eight patients were included, of whom 20.06% developed PSD. Baseline and peak values of all inflammatory markers were associated with the severity of PSD at three months. Area under the curve for the receiver operating characteristic curve of PSD prediction was 0.746 (CI 95% 0.592-0.803) with selected inflammation biomarkers and 0.744 (CI 95% 0.587-0.799) without. CONCLUSION Most inflammation biomarkers are weakly associated with PSD, adding negligible value to predictive models. While they suggest the implication of inflammation in PSD pathogenesis, they are useless for the prediction of PSD, underscoring the need for more specific biomarkers.
Collapse
Affiliation(s)
- J S Liegey
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, CHU de Bordeaux, Unité Bordeaux Segalen, 33076 Bordeaux, France.
| | - S Sagnier
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, CHU de Bordeaux, Unité Bordeaux Segalen, 33076 Bordeaux, France
| | - S Debruxelles
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, CHU de Bordeaux, Unité Bordeaux Segalen, 33076 Bordeaux, France
| | - M Poli
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, CHU de Bordeaux, Unité Bordeaux Segalen, 33076 Bordeaux, France
| | - S Olindo
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, CHU de Bordeaux, Unité Bordeaux Segalen, 33076 Bordeaux, France
| | - P Renou
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, CHU de Bordeaux, Unité Bordeaux Segalen, 33076 Bordeaux, France
| | - F Rouanet
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, CHU de Bordeaux, Unité Bordeaux Segalen, 33076 Bordeaux, France
| | - B Moal
- CHU de Bordeaux, Bordeaux, France
| | - T Tourdias
- Neuroradiologie, CHU de Bordeaux, Bordeaux, France
| | - I Sibon
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, CHU de Bordeaux, Unité Bordeaux Segalen, 33076 Bordeaux, France
| |
Collapse
|
15
|
Eirin M, Carignano H, Shimizu E, Pando MA, Zumárraga M, Magnano G, Macías A, Garbaccio S, Huertas P, Morsella C, Ferrara Muñiz X, Cataldi A, Paolicchi F, Poli M. BoLA-DRB3 exon2 polymorphisms among tuberculous cattle: Nucleotide and functional variability and their association with bovine tuberculosis pathology. Res Vet Sci 2020; 130:118-125. [PMID: 32172000 DOI: 10.1016/j.rvsc.2020.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 02/19/2020] [Accepted: 03/02/2020] [Indexed: 10/24/2022]
Abstract
Bovine tuberculosis (bTB) is caused by Mycobacterium bovis and disseminated worldwide. In Argentina, the highest prevalence occurs in dairy areas. BoLA DRB3.2 is related to the adaptive immunity in mycobacterial infections. Genetic polymorphisms of this marker have been associated with resistance or susceptibility to bovine diseases. We evaluated the association between BoLA DRB3.2 polymorphisms and bTB pathology scores in dairy and beef cattle breeds of Argentina. Most bovines exhibited visible lesions compatible with tuberculosis and, furthermore, 150 (85.7%) were also positive by bacteriology. A pathology index showed a variable degree of disease, from 3 to 76 (median pathology score = 9 (IQR: 7-15)). Thirty-five BoLA DRB3.2 alleles were identified with an associated frequency from 16% to 0.3%, distributed 73% (n = 128) in heterozygosis and 27% (n = 47) in homozygosis, with 12 BoLA DRB3.2 alleles (*0101, *1101, *1501, *0201, *2707 *1001, *1002, *1201, *14011, *0501 *0902 and *0701) representing the 74.7% of the population variability. A functional analysis grouped them in 4 out of 5 clusters (A-D), suggesting a functional overlapping. Among the 90 identified genotypes, *1101/*1101, *1101/*1501 and *0101/*0101 were the most frequent (10%, 8.9% and 8.9%, respectively). No association was detected between the pathology scores and a specific DRB3.2 allele (p > .05). Animals infected with M. bovis spoligotype SB0153 showed a significantly higher pathology score than those affected by the spoligotype SB0145 (p = .018). Furthermore, the Aberdeen Angus breed exhibited highest pathological scores (p < .0001), which were associated with disseminated lesion, thus suggesting that the host component could be important to the disease progression.
Collapse
Affiliation(s)
- M Eirin
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Biotecnología, IABIMO, INTA, CONICET, Buenos Aires, Argentina; CONICET, Argentina.
| | - H Carignano
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Genética, Buenos Aires, Argentina.
| | - E Shimizu
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Biotecnología, IABIMO, INTA, CONICET, Buenos Aires, Argentina.
| | - M A Pando
- CONICET, Argentina; Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), UBA-CONICET, Facultad de Medicina, Buenos Aires, Argentina.
| | - M Zumárraga
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Biotecnología, IABIMO, INTA, CONICET, Buenos Aires, Argentina; CONICET, Argentina.
| | - G Magnano
- Departamento de Patología Animal, Universidad Nacional de Río Cuarto, Facultad de Agronomía y Veterinaria, Córdoba, Argentina.
| | - A Macías
- Departamento de Patología Animal, Universidad Nacional de Río Cuarto, Facultad de Agronomía y Veterinaria, Córdoba, Argentina.
| | - S Garbaccio
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Patobiología Veterinaria (IPV), INTA, CONICET, Buenos Aires, Argentina.
| | - P Huertas
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Patobiología Veterinaria (IPV), INTA, CONICET, Buenos Aires, Argentina.
| | - C Morsella
- Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Agropecuaria Balcarce, Buenos Aires, Argentina.
| | - X Ferrara Muñiz
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Biotecnología, IABIMO, INTA, CONICET, Buenos Aires, Argentina.
| | - A Cataldi
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Biotecnología, IABIMO, INTA, CONICET, Buenos Aires, Argentina; CONICET, Argentina.
| | - F Paolicchi
- Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Agropecuaria Balcarce, Buenos Aires, Argentina.
| | - M Poli
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Genética, Buenos Aires, Argentina.
| |
Collapse
|
16
|
Fadini GP, Li Volsi P, Devangelio E, Poli M, Cazzetta G, Felace G, Avogaro A. Predictors of early discontinuation of dapagliflozin versus other glucose-lowering medications: a retrospective multicenter real-world study. J Endocrinol Invest 2020; 43:329-336. [PMID: 31515744 DOI: 10.1007/s40618-019-01110-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/03/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS In routine clinical practice, early discontinuation of newly initiated glucose-lowering medications (GLM) is relatively common. We herein evaluated if the clinical characteristics associated with early discontinuation of dapagliflozin were different from those associated with early discontinuation of other GLM. METHODS The DARWIN-T2D was a multicenter retrospective study conducted at diabetes specialist outpatient clinics in Italy. We included 2484 patients who were initiated on dapagliflozin in 2015-2016 and 14,801 patients who were initiated on other GLM (DPP-4 inhibitors, GLP-1 receptor agonists, or gliclazide) in the same period. After excluding patients who had not (yet) returned to follow-up, we compared the characteristics of patients who persisted on drug versus those who were no longer on drug at the first available follow-up after at least 3 months. RESULTS As compared to those who persisted on drug, patients who discontinued dapagliflozin (51.7%) were more often female, had higher baseline fasting plasma glucose (FPG), HbA1c, and eGFR, and less common use of metformin. Upon multiple regression, higher HbA1c, higher eGFR, and lower metformin use remained independently associated with early discontinuation. Among patients who had been initiated on other GLM, 41.7% discontinued. Variables independently associated with discontinuation were older age, longer diabetes duration, higher HbA1c, eGFR, and albumin excretion, more common use of insulin and less metformin. CONCLUSION In routine clinical practice, all variables associated with dapagliflozin discontinuation were also associated with discontinuation of other GLM. Thus, despite a distinctive mechanism of action and a peculiar tolerability profile, no specific predictor of dapagliflozin discontinuation was detected.
Collapse
Affiliation(s)
- G P Fadini
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padua, Italy.
| | - P Li Volsi
- Ospedale di Pordenone - Azienda per l'Assistenza Sanitaria n.5, Friuli Occidentale, 33170, Pordenone, Italy
| | - E Devangelio
- Presidio Territoriale di Assistenza-Distretto Socio Sanitario di Massafra - Azienda Sanitaria Locale di Taranto, 74016, Massafra, Italy
| | - M Poli
- Ospedale Girolamo Fracastoro di San Bonifacio - Azienda ULSS n.9 Scaligera, 37047, San Bonifacio, Italy
| | - G Cazzetta
- Distretto Socio Sanitario Gagliano del Capo, sede Tricase - Azienda Sanitaria Locale di Lecce, 73039, Tricase, Italy
| | - G Felace
- Ospedale di Spilimbergo - Azienda per l'Assistenza Sanitaria n.5, Friuli Occidentale, 33170, Pordenone, Italy
| | - A Avogaro
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padua, Italy
| |
Collapse
|
17
|
Girardi L, Romanelli V, Fabiani M, Cimadomo D, Rienzi L, Ubaldi F, Serdarogulları M, Coban O, Findikli N, Boynukalin K, Bahceci M, Patassini C, Poli M, Lluesa CR, Simón C, Capalbo A. 8. SEGMENTAL ANEUPLOIDIES SHOW MOSAIC PATTERN REDUCING PREDICTIVE VALUE COMPARED TO HIGH WHOLE CHROMOSOME ANEUPLOIDIES REPRESENTATIVENESS. Reprod Biomed Online 2019. [DOI: 10.1016/j.rbmo.2019.04.043] [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: 10/26/2022]
|
18
|
Cutaia C, Richetta E, Poli M, Pasquino M, Paradisi BP, Sacco L, Carbonatto P, Calvo A, Tabone M, Pellerito R, Stasi M. 329. Personalized dosimetric approach in advanced HCC patients treated with 90Y resin microspheres. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.338] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
19
|
Pasquino M, Cutaia C, Poli M, Valero C, Peroni G, De Benedictis M, Petrucci E, Stasi M. Patient’s Peak Skin Dose evaluation using Gafchromic films in interventional cardiology procedures and its correlation with other dose indicators. Phys Med 2018; 53:103-107. [DOI: 10.1016/j.ejmp.2018.08.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 08/16/2018] [Accepted: 08/17/2018] [Indexed: 10/28/2022] Open
|
20
|
Poli M, Cornut PL, Nguyen AM, De Bats F, Denis P. Accuracy of peripapillary versus macular vessel density in diagnosis of early to advanced primary open angle glaucoma. J Fr Ophtalmol 2018; 41:619-629. [PMID: 30150018 DOI: 10.1016/j.jfo.2018.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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] [Received: 12/07/2017] [Revised: 01/31/2018] [Accepted: 02/07/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE To evaluate macular and peripapillary vessel density (mVD, pVD) using optical coherence tomography angiography (OCT-A) in healthy subjects, patients with ocular hypertension (OHT) and primary open-angle glaucoma (POAG) patients. METHODS In this prospective observational study, OCT-A images were obtained from 60 eyes of 36 healthy, ocular hypertension (OHT), preperimetric glaucoma (PPG), early glaucoma (EG) and moderate and advanced POAG subjects. Superficial mVD was acquired over a 6×6-mm cube centered on the foveal avascular zone and pVD over a 4.5×4.5-mm cube centered on the optic disc. Peripapillary retinal nerve fiber layer (pRNFL) and ganglion cell complex (GCC) thickness was calculated using spectral-domain OCT. Correlations between vascular, structural and Humphrey VF indices were evaluated (Spearman's rank correlation coefficient). RESULTS Median pVD and mVD in the PPG eyes were lower than in healthy eyes (51.87% and 47.23% versus 55.70% and 53.61%, respectively; P<0.001 and P=0.003), but higher than in mild glaucoma eyes (46.21% and 41.98%, P<0.001 compared to normal eyes) and moderate to advanced glaucoma eyes (37.45% and 39.89%, P<0.0001 compared to normal eyes). The highest correlations were found between structural parameters and pVD (r=0.87 and 0.86 for pRNFL and GCC, P<0.0001), followed by mVD (r=0.69 for both pRNFL and GCC, P<0.0001). Correlations with mean VF sensitivity were similar for pVD and mVD (r=0.61 and 0.56) and for GCC and pRNFL (r=0.60 and 0.52, P<0.0001 for all). CONCLUSIONS VD measured with OCT-A shows reduction in POAG. Detection of this damage differentiates PPG from normal and perimetric POAG eyes with a high correlation with structural parameters. Peripapillary VD accuracy is higher than mVD in detecting the disease. These results suggest that OCT-A could improve POAG diagnosis and understanding of the pathophysiologic mechanisms behind glaucoma.
Collapse
Affiliation(s)
- M Poli
- Centre ophtalmologique, pôle vision Val d'Ouest, clinique du Val d'Ouest, 69130 Ecully, France; Department of ophthalmology, Lyon Sud University Hospital, 69310 Pierre-Bénite, France.
| | - P-L Cornut
- Centre ophtalmologique, pôle vision Val d'Ouest, clinique du Val d'Ouest, 69130 Ecully, France
| | - A-M Nguyen
- Centre ophtalmologique, pôle vision Val d'Ouest, clinique du Val d'Ouest, 69130 Ecully, France; Department of ophthalmology, Croix-Rousse University Hospital, 69004 Lyon, France
| | - F De Bats
- Centre ophtalmologique, pôle vision Val d'Ouest, clinique du Val d'Ouest, 69130 Ecully, France; Department of ophthalmology, Croix-Rousse University Hospital, 69004 Lyon, France
| | - P Denis
- Department of ophthalmology, Croix-Rousse University Hospital, 69004 Lyon, France
| |
Collapse
|
21
|
Pelin M, Sosa S, Brovedani V, Fusco L, Poli M, Tubaro A. A Novel Sensitive Cell-Based Immunoenzymatic Assay for Palytoxin Quantitation in Mussels. Toxins (Basel) 2018; 10:toxins10080329. [PMID: 30110919 PMCID: PMC6116170 DOI: 10.3390/toxins10080329] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 12/24/2022] Open
Abstract
The marine algal toxin palytoxin (PLTX) and its analogues are some of the most toxic marine compounds. Their accumulation in edible marine organisms and entrance into the food chain represent their main concerns for human health. Indeed, several fatal human poisonings attributed to these compounds have been recorded in tropical and subtropical areas. Due to the increasing occurrence of PLTX in temperate areas such as the Mediterranean Sea, the European Food Safety Authority (EFSA) has suggested a maximum limit of 30 µg PLTX/kg in shellfish meat, and has recommended the development of rapid, specific, and sensitive methods for detection and quantitation of PLTX in seafood. Thus, a novel, sensitive cell-based ELISA was developed and characterized for PLTX quantitation in mussels. The estimated limits of detection (LOD) and quantitation (LOQ) were 1.2 × 10−11 M (32.2 pg/mL) and 2.8 × 10−11 M (75.0 pg/mL), respectively, with good accuracy (bias = 2.5%) and repeatability (15% and 9% interday and intraday relative standard deviation of repeatability (RSDr), respectively). Minimal interference of 80% aqueous methanol extract allows PLTX quantitation in mussels at concentrations lower than the maximum limit suggested by EFSA, with an LOQ of 9.1 µg PLTX equivalent/kg mussel meat. Given its high sensitivity and specificity, the cell-based ELISA should be considered a suitable method for PLTX quantitation.
Collapse
Affiliation(s)
- Marco Pelin
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy.
| | - Silvio Sosa
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy.
| | | | - Laura Fusco
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy.
| | - Mark Poli
- U.S. Army Medical Research Institute of Infectious Diseases, Ft. Detrick, MD 21701-5011, USA.
| | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy.
| |
Collapse
|
22
|
Poli M, Ruiz-Olvera P, Nalca A, Ruiz S, Livingston V, Frick O, Dyer D, Schellhase C, Raymond J, Kulis D, Anderson D, McGrath S, Deeds J. Toxicity and pathophysiology of palytoxin congeners after intraperitoneal and aerosol administration in rats. Toxicon 2018; 150:235-250. [PMID: 29902540 DOI: 10.1016/j.toxicon.2018.06.067] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/04/2018] [Accepted: 06/08/2018] [Indexed: 11/26/2022]
Abstract
Preparations of palytoxin (PLTX, derived from Japanese Palythoa tuberculosa) and the congeners 42-OH-PLTX (from Hawaiian P. toxica) and ovatoxin-a (isolated from a Japanese strain of Ostreopsis ovata), as well as a 50:50 mixture of PLTX and 42-OH-PLTX derived from Hawaiian P. tuberculosa were characterized as to their concentration, composition, in-vitro potency and interaction with an anti-PLTX monoclonal antibody (mAb), after which they were evaluated for lethality and tissue histopathology after intraperitoneal (IP) and aerosol administration to rats. Once each preparation was characterized as to its toxin composition by LC-HRMS and normalized to a total PLTX/OVTX concentration using HPLC-UV, all four preparations showed similar potency towards mouse erythrocytes in the erythrocyte hemolysis assay and interactions with the anti-PLTX mAb. The IP LD50 values derived from these experiments (0.92, 1.93, 1.81 and 3.26 μg/kg, for the 50:50 mix, 42-OH-PLTX, PLTX, and ovatoxin-a, respectively) were consistent with published values, although some differences from the published literature were seen. The aerosol LD50 values (0.063, 0.045, 0.041, and 0.031 μg/kg for the 50:50 mix, 42-OH PLTX, PLTX, and ovatoxin-a, respectively) confirmed the exquisite potency of PLTX suggested by the literature. The tissue histopathology of the different toxin preparations by IP and aerosol administration were similar, albeit with some differences. Most commonly affected tissues were the lungs, liver, heart, salivary glands, and adrenal glands. Despite some differences, these results suggest commonalities in potency and mechanism of action among these PLTX congeners.
Collapse
Affiliation(s)
- Mark Poli
- Diagnostic Systems Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States.
| | - Patricia Ruiz-Olvera
- Diagnostic Systems Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Aysegul Nalca
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Sara Ruiz
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Virginia Livingston
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Ondraya Frick
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - David Dyer
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Christopher Schellhase
- Pathology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Jolynne Raymond
- Pathology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - David Kulis
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
| | - Donald Anderson
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
| | - Sara McGrath
- Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, United States
| | - Jonathan Deeds
- Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, United States
| |
Collapse
|
23
|
Palazzi M, Valdagni R, Poli M, Buffoli A, Leoni M, Vavassori V, Di Lorenzo I, Corbella F, Nava S, Cazzaniga LF. The Role of Radiotherapy in the Treatment of Stage III Non-Small Cell Lung Cancer: A Survey of Clinical Practices in Lombardy, Italy, by the Airo-Lombardia Cooperative Group. Tumori 2018; 80:286-9. [PMID: 7974800 DOI: 10.1177/030089169408000409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 11/17/2022]
Abstract
Aims and background The role of radiotherapy in the treatment of stage III non-small cell lung cancer is controversial. The aim of this survey was to investigate the use of this modality in current clinical practice in Lombardy, a highly industrialized region of northern Italy. Methods A questionnaire was sent to all 13 radiotherapy centers in Lombardy, covering statistical, clinical, technical and strategical aspects, and the responses were analyzed. Results A wide range of attitudes was observed among participating radiation oncologists; the percentage of cases treated with curative intent varied largely between centers (4-100%), as did the proportion of patients given to radiation only rather than combined modality treatment (5-100% vs 0-90%). Conclusions An urgent need exists for better cooperation between all clinicians involved in lung cancer treatment, pursuing the goals of a more uniform clinical practice and a more aggressive clinical research attitude.
Collapse
Affiliation(s)
- M Palazzi
- Department of Radiotherapy, Istituto Nazionale Tumori, Milano
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Villemont AS, Kocaba V, Janin-Manificat H, Abouaf L, Poli M, Marty AS, Rabilloud M, Fleury J, Burillon C. Prise en charge de l’aphakie et de l’aniridie post-traumatiques. Étude rétrospective de 17 patients opérés d’implants intraoculaires suturés à la sclère à iris artificiel. Gestion de l’aphakie-aniridie par implants suturés à la sclère à iris artificiel. J Fr Ophtalmol 2017; 40:592-605. [DOI: 10.1016/j.jfo.2017.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 03/25/2017] [Indexed: 12/19/2022]
|
25
|
Poli M, Colange J, Goutagny B, Sellem E. [Glaucoma and optic nerve drusen: Limitations of optic nerve head OCT]. J Fr Ophtalmol 2017; 40:542-546. [PMID: 28823839 DOI: 10.1016/j.jfo.2016.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/22/2016] [Accepted: 07/25/2016] [Indexed: 12/01/2022]
Abstract
INTRODUCTION Optic nerve head drusen are congenital calcium deposits located in the prelaminar section of the optic nerve head. Their association with visual field defects has been classically described, but the diagnosis of glaucoma is not easy in these cases of altered optic nerve head anatomy. CASE STUDY We describe the case of a 67-year-old man with optic nerve head drusen complicated by glaucoma, which was confirmed by visual field and OCT examination of the peripapillary retinal nerve fiber layer (RNFL), but the measurement of the minimum distance between the Bruch membrane opening and the internal limiting membrane (minimum rim width, BMO-MRW) by OCT was normal. DISCUSSION OCT of the BMO-MRW is a new diagnostic tool for glaucoma. Superficial optic nerve head drusen, which are found between the internal limiting membrane and the Bruch's membrane opening, overestimate the value of this parameter. CONCLUSION BMO-MRW measurement is not adapted to cases of optic nerve head drusen and can cause false-negative results for this parameter, and the diagnosis of glaucoma in this case should be based on other parameters such as the presence of a fascicular defect in the retinal nerve fibers, RNFL or macular ganglion cell complex thinning, as well as visual field data.
Collapse
Affiliation(s)
- M Poli
- Centre ophtalmologique Pôle-Vision-Val d'Ouest, clinique du Val d'Ouest, 39, chemin de la Vernique, 69130 Ecully, France.
| | - J Colange
- Centre ophtalmologique Pôle-Vision-Val d'Ouest, clinique du Val d'Ouest, 39, chemin de la Vernique, 69130 Ecully, France
| | - B Goutagny
- Centre ophtalmologique Pôle-Vision-Val d'Ouest, clinique du Val d'Ouest, 39, chemin de la Vernique, 69130 Ecully, France
| | - E Sellem
- Centre ophtalmologique Kleber, 50, cours Franklin-Roosevelt, 69006 Lyon, France
| |
Collapse
|
26
|
Fraga M, Vilariño N, Louzao MC, Molina L, López Y, Poli M, Botana LM. First Identification of Palytoxin-Like Molecules in the Atlantic Coral Species Palythoa canariensis. Anal Chem 2017. [PMID: 28648045 DOI: 10.1021/acs.analchem.7b01003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Palytoxin (PLTX) is a complex marine toxin produced by Zoanthids (Palyhtoa), dinoflagellates (Ostreopsis), and cyanobacteria (Trichodesmium). Contact with PLTX-like compounds present in aerosols or marine organisms has been associated with adverse effects on humans. The worldwide distribution of producer species and seafood contaminated with PLTX-like molecules illustrates the global threat to human health. The identification of species capable of palytoxin production is critical for human safety. We studied the presence of PLTX analogues in Palythoa canariensis, a coral species collected in the Atlantic Ocean never described as a PLTX-producer before. Two methodologies were used for the detection of these toxins: a microsphere-based immunoassay that offered an estimation of the content of PLTX-like molecules in a Palythoa canariensis extract and an ultrahigh-pressure liquid chromatography coupled to an ion trap with a time-of-flight mass spectrometer (UPLC-IT-TOF-MS) that allowed the characterization of the toxin profile. The results demonstrated the presence of PLTX, hydroxy-PLTX and, at least, two additional compounds with PLTX-like profile in the Palythoa canariensis sample. The PLTX content was estimated in 0.27 mg/g of lyophilized coral using UPLC-IT-TOF-MS. Therefore, this work demonstrates that Palythoa canariensis produces a mixture of PLTX-like molecules. This is of special relevance to safeguard human health considering Palythoa species are commonly used for decoration by aquarium hobbyists.
Collapse
Affiliation(s)
- María Fraga
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , 27002 Lugo, Spain
| | - Natalia Vilariño
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , 27002 Lugo, Spain
| | - M Carmen Louzao
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , 27002 Lugo, Spain
| | - Lucía Molina
- Grupo de Investigación en Acuicultura (GIA) Instituto Canario de Ciencias Marinas P.O. Box 56, 35200, Telde, Las Palmas, Canary Islands, Spain
| | - Yanira López
- Grupo de Investigación en Acuicultura (GIA) Instituto Canario de Ciencias Marinas P.O. Box 56, 35200, Telde, Las Palmas, Canary Islands, Spain
| | - Mark Poli
- Diagnostic Systems Division, U.S. Army Medical Research Institute of Infectious Diseases , Fort Detrick, Maryland 21702, United States
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela , 27002 Lugo, Spain
| |
Collapse
|
27
|
Maggio A, Gabriele D, Garibaldi E, Bresciani S, Delmastro E, Di Dia A, Miranti A, Poli M, Varetto T, Stasi M, Gabriele P. Impact of a rectal and bladder preparation protocol on prostate cancer outcome in patients treated with external beam radiotherapy. Strahlenther Onkol 2017. [PMID: 28620751 DOI: 10.1007/s00066-017-1163-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
PURPOSE AND OBJECTIVE To test the hypothesis that a rectal and bladder preparation protocol is associated with an increase in prostate cancer specific survival (PCSS), clinical disease free survival (CDFS) and biochemical disease free survival (BDFS). PATIENTS AND METHODS From 1999 to 2012, 1080 prostate cancer (PCa) patients were treated with three-dimensional conformal radiotherapy (3DCRT). Of these patients, 761 were treated with an empty rectum and comfortably full bladder (RBP) preparation protocol, while for 319 patients no rectal/bladder preparation (NRBP) protocol was adopted. RESULTS Compared with NRBP patients, patients with RBP had significantly higher BDFS (64% vs 48% at 10 years, respectively), CDFS (81% vs 70.5% at 10 years, respectively) and PCSS (95% vs 88% at 10 years, respectively) (log-rank test p < 0.001). Multivariate analysis (MVA) indicated for all treated patients and intermediate high-risk patients that the Gleason score (GS) and the rectal and bladder preparation were the most important prognostic factors for PCSS, CDFS and BDFS. With regard to high- and very high-risk patients, GS, RBP, prostate cancer staging and RT dose were predictors of PCSS, CDFS and BDFS in univariate analysis (UVA). CONCLUSION We found strong evidence that rectal and bladder preparation significantly decreases biochemical and clinical failures and the probability of death from PCa in patients treated without daily image-guided prostate localization, presumably since patients with RBP are able to maintain a reproducibly empty rectum and comfortably full bladder across the whole treatment compared with NRPB patients.
Collapse
Affiliation(s)
- A Maggio
- Medical Physic Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy.
| | - D Gabriele
- Radiotherapy Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy.,Division of Radiation Oncology, University of Sassari, Sassari, Italy
| | - E Garibaldi
- Radiotherapy Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| | - S Bresciani
- Medical Physic Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| | - E Delmastro
- Radiotherapy Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| | - A Di Dia
- Medical Physic Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| | - A Miranti
- Medical Physic Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| | - M Poli
- Medical Physic Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| | - T Varetto
- Nuclear Medicine Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| | - M Stasi
- Medical Physic Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| | - P Gabriele
- Radiotherapy Department, Candiolo Cancer Institute - FPO,IRCCS, Candiolo (To), Italy
| |
Collapse
|
28
|
Sagnier S, Poli M, Debruxelles S, Renou P, Rouanet F, Sibon I. High-dose acyclovir combined with foscavir (foscarnet) in the management of severe herpes simplex virus meningoencephalitis. Rev Neurol (Paris) 2017; 173:240-242. [DOI: 10.1016/j.neurol.2017.03.006] [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] [Received: 10/08/2016] [Revised: 12/31/2016] [Accepted: 03/09/2017] [Indexed: 10/19/2022]
|
29
|
Poli M, Denis P, Dot C, Nordmann JP. Conduite à tenir face au risque d’hypertonie oculaire après injection intra-vitréenne. J Fr Ophtalmol 2017; 40:e77-e82. [DOI: 10.1016/j.jfo.2017.01.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 11/27/2022]
|
30
|
Poli M, Philip P, Taillard J, Debruxelles S, Renou P, Orgogozo J, Rouanet F, Sibon I. Atrial fibrillation is a major cause of stroke in apneic patients: a prospective study. Sleep Med 2017; 30:251-254. [DOI: 10.1016/j.sleep.2015.07.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 06/30/2015] [Accepted: 07/01/2015] [Indexed: 11/30/2022]
|
31
|
Sellem E, Poli M. [Regression of myelinated retinal nerve fibers in a case of primary open-angle glaucoma]. J Fr Ophtalmol 2017; 40:1-3. [PMID: 28057358 DOI: 10.1016/j.jfo.2016.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 03/31/2016] [Indexed: 11/17/2022]
Abstract
Myelinated retinal nerve fibers observed rarely on ocular fundus examination, usually adjacent to the optic disc, are known to be stable throughout life. However, the possibility of rarefaction, and even disappearance, of these myelinated fibers has been pointed out in very rare cases of ocular or neuro-ophthalmological pathologies. We report such a regression, identified after a six-year period, in one case of primary open-angle glaucoma.
Collapse
Affiliation(s)
- E Sellem
- Centre ophtalmologique Kléber, 50, cours F.-Rossevelt, 69006 Lyon, France.
| | - M Poli
- Centre pôle vision Val-d'Ouest, 39, chemin de la Vernique, 69130 Écully, France
| |
Collapse
|
32
|
Sagnier S, Galli P, Poli M, Debruxelles S, Renou P, Olindo S, Rouanet F, Sibon I. The impact of intravenous thrombolysis on outcome of patients with acute ischemic stroke after 90 years old. BMC Geriatr 2016; 16:156. [PMID: 27562122 PMCID: PMC5000473 DOI: 10.1186/s12877-016-0331-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 08/20/2016] [Indexed: 12/24/2022] Open
Abstract
Background Age increases the risk of mortality and poor prognosis following stroke. The benefit of intravenous thrombolysis in very old patients remains uncertain. The purpose of the study was to evaluate the efficacy and safety of thrombolysis in very old patients considering their perfusion-imaging profile. Methods We conducted a retrospective study including patients older than 90 y.o. admitted for an acute ischemic stroke. A computed tomography perfusion-imaging (CTP) was performed in patients who received thrombolysis. Primary outcome was the functional status at 3 months, assessed by the modified Rankin scale (mRS). Secondary outcomes were the rate of hemorrhagic transformations, duration of hospitalization and the rate of death in the first 7 days. Patients receiving thrombolysis were compared with an age-matched group of non-thrombolysed patients. Results 78 patients were included (31 % male, aged 92 ± 1.7 y.o). 37 patients received thrombolysis and among them, 30 had CTP with a mismatch. The three months mRS was not significantly different in the two groups (mRS 0–2: 5 % and 7 % in the thrombolysed and non-thrombolysed group, respectively). Hemorrhagic transformations were more frequent in the thrombolysed group (54 % versus 12 %, p = 0.002) and symptomatic intracranial hemorrhage tended to be associated with mRS at three months and death in the first 7 days. Duration of hospitalization was longer in the thrombolysed group (10 days ± 12 versus 7 days ± 9, p = 0.046). Conclusions Patients who received thrombolysis did not have a better functional prognosis than non-thrombolysed patients. Electronic supplementary material The online version of this article (doi:10.1186/s12877-016-0331-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- S Sagnier
- Unité Neuro-vasculaire, Pôle de Neurosciences Cliniques, Hôpital Pellegrin, CHU Bordeaux, UnitéBordeaux Segalen, 33076, Bordeaux, France
| | - P Galli
- Unité Neuro-vasculaire, Pôle de Neurosciences Cliniques, Hôpital Pellegrin, CHU Bordeaux, UnitéBordeaux Segalen, 33076, Bordeaux, France.,Université Bordeaux Segalen, Bordeaux, France
| | - M Poli
- Unité Neuro-vasculaire, Pôle de Neurosciences Cliniques, Hôpital Pellegrin, CHU Bordeaux, UnitéBordeaux Segalen, 33076, Bordeaux, France
| | - S Debruxelles
- Unité Neuro-vasculaire, Pôle de Neurosciences Cliniques, Hôpital Pellegrin, CHU Bordeaux, UnitéBordeaux Segalen, 33076, Bordeaux, France
| | - P Renou
- Unité Neuro-vasculaire, Pôle de Neurosciences Cliniques, Hôpital Pellegrin, CHU Bordeaux, UnitéBordeaux Segalen, 33076, Bordeaux, France
| | - S Olindo
- Unité Neuro-vasculaire, Pôle de Neurosciences Cliniques, Hôpital Pellegrin, CHU Bordeaux, UnitéBordeaux Segalen, 33076, Bordeaux, France
| | - F Rouanet
- Unité Neuro-vasculaire, Pôle de Neurosciences Cliniques, Hôpital Pellegrin, CHU Bordeaux, UnitéBordeaux Segalen, 33076, Bordeaux, France
| | - I Sibon
- Unité Neuro-vasculaire, Pôle de Neurosciences Cliniques, Hôpital Pellegrin, CHU Bordeaux, UnitéBordeaux Segalen, 33076, Bordeaux, France. .,Université Bordeaux Segalen, Bordeaux, France.
| |
Collapse
|
33
|
Brovedani V, Sosa S, Poli M, Forino M, Varello K, Tubaro A, Pelin M. A revisited hemolytic assay for palytoxin detection: Limitations for its quantitation in mussels. Toxicon 2016; 119:225-33. [PMID: 27343702 DOI: 10.1016/j.toxicon.2016.06.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/17/2016] [Accepted: 06/21/2016] [Indexed: 12/21/2022]
Abstract
Palytoxin (PLTX) and its analogues have been detected as seafood contaminants associated with a series of human foodborne poisonings. Due to a number of fatalities ascribed to the ingestion of PLTX-contaminated marine organisms, the development of methods for its detection in seafood has been recommended by the European Food Safety Authority (EFSA). Due to its feasibility, the spectrophotometric hemolytic assay is widely used to detect PLTX in different matrices, even though a standardized protocol is still lacking. Thus, on the basis of available assay procedures, a new standardized protocol was set up using purified human erythrocytes exposed to PLTX (working range: 3.9 × 10(-10)-2.5 × 10(-8) M) in a K(+)-free phosphate buffered saline solution, employing a 5 h incubation at 41 °C. An intra-laboratory characterization demonstrated its sensitivity (limit of detection, LOD = 1.4 × 10(-10) M and quantitation, LOQ = 3.4 × 10(-10) M), accuracy (bias = -0.8%), repeatability (RSDr = 15% and 6% for intra- and inter-day repeatability, respectively) and specificity. However, the standardized method seems not to be suitable for PLTX quantitation in complex matrices, such as mussel (Mytilus galloprovincialis) extracts, at least below the limit suggested by EFSA (30 μg PLTXs/Kg shellfish meat). Thus, the hemolytic assay for PLTX quantitation in seafood should be used only after a careful evaluation of the specific matrix effects.
Collapse
Affiliation(s)
- Valentina Brovedani
- Department of Life Sciences, University of Trieste, Via A. Valerio 6, 34127, Trieste, Italy.
| | - Silvio Sosa
- Department of Life Sciences, University of Trieste, Via A. Valerio 6, 34127, Trieste, Italy.
| | - Mark Poli
- U.S. Army Medical Research Institute of Infectious Diseases, Ft Detrick, MD, United States.
| | - Martino Forino
- Department of Pharmacy, University of Napoli Federico II, 80131, Napoli, Italy.
| | - Katia Varello
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Via Bologna 148, 10154, Torino, Italy.
| | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, Via A. Valerio 6, 34127, Trieste, Italy.
| | - Marco Pelin
- Department of Life Sciences, University of Trieste, Via A. Valerio 6, 34127, Trieste, Italy.
| |
Collapse
|
34
|
Piemonte G, El Aoufi K, Braschi F, Poli M, Guiducci S, Bellando Randone S, Rasero L, Matucci Cerinic M. OP0194-HPR Nursing Triage in Rheumatology: Three Months Experience in An Outpatient Clinic of The University of Florence (Italy). Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5043] [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: 11/04/2022]
|
35
|
Bresciani S, Poli M, Miranti A, Maggio A, Di Dia A, Bracco C, Stasi M. EP-1586: Characterization of a new EPID-based system for in-vivo dosimetry in VMAT treatments. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32836-5] [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]
|
36
|
Stasi M, Bresciani S, Miranti A, Poli M, Di Dia A, Maggio A, Delmastro E, Gabriele P. EP-1587: Sensitivity and specificity of gamma index method for Tomotherapy plans. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32837-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
37
|
Di Dia A, Depalma S, Bresciani S, Maggio A, Miranti A, Poli M, Gabriele P, Garibaldi E, Stasi M. PO-0945: Modeling and simulation of simultaneous using of two superficial hyperthermia antennas. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32195-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
38
|
Poli M, Bresciani S, Miranti A, Dia AD, Maggio A, Gatti M, Gabriele P, Stasi M. EP-1880: Validation of the use of digital camera for the prediction of skin toxicity in breast radiotherapy. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)33131-0] [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: 10/21/2022]
|
39
|
Garibaldi E, Di Dia A, Delmastro E, Belli G, Gatti M, Cattari G, Salatino A, Squintu S, Poli M, Miranti A, Gabriele P. EP-1477: Radiotherapy-Hyperthermia: outcome/toxicity in the superficial recurrent/metastatic tumors. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32727-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
40
|
Maggio A, Garibaldi E, Gabriele D, Bresciani S, Delmastro E, Di Dia A, Miranti A, Poli M, Gabriele P, Stasi M. PO-0752: Outcome of prostate cancer patients treated with 3DCRT: impact of rectal/bladder preparation. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32002-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
41
|
Bigourdan A, Munsch F, Coupé P, Guttmann C, Sagnier S, Renou P, Debruxelles S, Poli M, Dousset V, Sibon I, Tourdias T. Prédiction de la récupération motrice après un infarctus cérébral : apport de l’imagerie en tenseur de diffusion. J Neuroradiol 2016. [DOI: 10.1016/j.neurad.2016.01.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
42
|
Pelin M, Forino M, Brovedani V, Tartaglione L, Dell'Aversano C, Pistocchi R, Poli M, Sosa S, Florio C, Ciminiello P, Tubaro A. Ovatoxin-a, A Palytoxin Analogue Isolated from Ostreopsis cf. ovata Fukuyo: Cytotoxic Activity and ELISA Detection. Environ Sci Technol 2016; 50:1544-1551. [PMID: 26714047 DOI: 10.1021/acs.est.5b04749] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study provides the first evaluation of the cytotoxic effects of the recently identified palytoxin (PLTX) analog, ovatoxin-a (OVTX-a), the major toxin produced by Ostreopsis cf. ovata in the Mediterranean Sea. Its increasing detection during Ostreopsis blooms and in seafood highlights the need to characterize its toxic effects and to set up appropriate detection methods. OVTX-a is about 100 fold less potent than PLTX in reducing HaCaT cells viability (EC50 = 1.1 × 10(-9) M vs 1.8 × 10(-11) M, MTT test) in agreement with a reduced binding affinity (Kd = 1.2 × 10(-9) vs 2.7 × 10(-11) M, saturation experiments on intact cells). Similarly, OVTX-a hemolytic effect is lower than that of the reference PLTX compound. Ost-D shows the lowest cytotoxicity toward HaCaT keratinocytes, suggesting the lack of a hydroxyl group at C44 as a critical feature for PLTXs cytotoxic effects. A sandwich ELISA developed for PLTX detects also OVTX-a in a sensitive (LOD = 4.2 and LOQ = 5.6 ng/mL) and accurate manner (Bias = 0.3%), also in O. cf. ovata extracts and contaminated mussels. Although in vitro OVTX-a appears less toxic than PLTX, its cytotoxicity at nanomolar concentrations after short exposure time rises some concern for human health. The sandwich ELISA can be a viable screening method for OVTXs detection in monitoring program.
Collapse
Affiliation(s)
- Marco Pelin
- Department of Life Science, University of Trieste , 34127 Trieste, Italy
| | - Martino Forino
- Department of Pharmacy, University of Napoli Federico II , 80131 Napoli, Italy
| | | | - Luciana Tartaglione
- Department of Pharmacy, University of Napoli Federico II , 80131 Napoli, Italy
| | | | - Rossella Pistocchi
- Interdepartmental Center for Research in Environmental Sciences, University of Bologna , 481230 Ravenna, Italy
| | - Mark Poli
- U.S. Army Medical Research Institute of Infectious Diseases, Ft. Detrick, Maryland, 21701-5011 United States
| | - Silvio Sosa
- Department of Life Science, University of Trieste , 34127 Trieste, Italy
| | - Chiara Florio
- Department of Life Science, University of Trieste , 34127 Trieste, Italy
| | - Patrizia Ciminiello
- Department of Pharmacy, University of Napoli Federico II , 80131 Napoli, Italy
| | - Aurelia Tubaro
- Department of Life Science, University of Trieste , 34127 Trieste, Italy
| |
Collapse
|
43
|
Bresciani S, Poli M, Miranti A, Maggio A, Di Dia A, Bracco C, Stasi M. Characterization and comparison of two EPID-based software solutions for in-vivo dosimetry of VMAT treatments. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.022] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
44
|
Di Dia A, Garibaldi E, Delmastro E, Belli G, Gatti M, Cattari G, Salatino A, Squintu S, Miranti A, Poli M, Gabriele P, Stasi M. Radiotherapy in association with hyperthermia: Outcome and toxicity in the treatment of superficial recurrent/metastatic tumors. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.065] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
45
|
Miranti A, D'ambrosio A, Cattari G, Bresciani S, Poli M, Cutaia C, Gabriele P, Stasi M. Dosimetric and preclinical results of small animal irradiation by using tomotherapy. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.155] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
46
|
Poli M, Bracco C, Bresciani S, Maggio A, Di Dia A, Miranti A, Stasi M. Three years of experience with dose reduction by means of iterative reconstruction algorithm available on CT Siemens Somatom Definition Flash. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.300] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
47
|
Maggio A, Garibaldi E, Gabriele D, Bresciani S, Delmastro E, Di Dia A, Miranti A, Poli M, Gabriele P, Stasi M. Is the outcome of prostate cancer patients treated with 3D conformal radiotherapy influenced by rectal/bladder preparation? Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.136] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
48
|
Lopes D, Fernández G, Poli M, Moreira G, Gonçalves G, Freitas T. Ancestry analysis of locally adapted Crespa goats from southernmost Brazil. Genet Mol Res 2016; 15:gmr8324. [DOI: 10.4238/gmr.15028324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
49
|
Sagnier S, Coulon P, Chaufton C, Poli M, Debruxelles S, Renou P, Rouanet F, Olindo S, Sibon I. Lucid dreams, an atypical sleep disturbance in anterior and mediodorsal thalamic strokes. Rev Neurol (Paris) 2015; 171:768-72. [PMID: 26494569 DOI: 10.1016/j.neurol.2015.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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] [Received: 12/21/2014] [Revised: 07/26/2015] [Accepted: 08/10/2015] [Indexed: 11/18/2022]
Abstract
BACKGROUND Cognitive, affective, and behavioural disturbances are commonly reported following thalamic strokes. Conversely, sleep disorders are rarely reported in this context. OBSERVATIONS Herein, we report the cases of two young patients admitted for an ischemic stroke located in the territories of the left pre-mammillary and paramedian arteries. Together with aphasia, memory complaint, impaired attention and executive functions, they reported lucid dreams with catastrophic content or conflicting situations. CONCLUSION Lucid dreams are an atypical presentation in thalamic strokes. These cases enlarge the clinical spectrum of sleep-wake disturbances potentially observed after an acute cerebrovascular event.
Collapse
Affiliation(s)
- S Sagnier
- Unité neurovasculaire, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France; Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, université Bordeaux-Segalen, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France
| | - P Coulon
- Service d'explorations fonctionnelles du système nerveux, clinique du sommeil, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France
| | - C Chaufton
- Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, université Bordeaux-Segalen, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France; Service d'explorations fonctionnelles du système nerveux, clinique du sommeil, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France
| | - M Poli
- Unité neurovasculaire, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France
| | - S Debruxelles
- Unité neurovasculaire, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France
| | - P Renou
- Unité neurovasculaire, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France
| | - F Rouanet
- Unité neurovasculaire, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France
| | - S Olindo
- Unité neurovasculaire, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France
| | - I Sibon
- Unité neurovasculaire, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France; Unité neurovasculaire, pôle de neurosciences cliniques, hôpital Pellegrin, université Bordeaux-Segalen, CHU de Bordeaux, 146, rue Léo-Saignat, 33076 Bordeaux, France.
| |
Collapse
|
50
|
Fraga M, Vilariño N, Louzao MC, Fernández DA, Poli M, Botana LM. Detection of palytoxin-like compounds by a flow cytometry-based immunoassay supported by functional and analytical methods. Anal Chim Acta 2015; 903:1-12. [PMID: 26709295 DOI: 10.1016/j.aca.2015.09.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 09/15/2015] [Accepted: 09/20/2015] [Indexed: 10/23/2022]
Abstract
Palytoxin (PLTX) is a complex marine toxin produced by zoanthids (i.e. Palythoa), dinoflagellates (Ostreopsis) and cyanobacteria (Trichodesmium). PLTX outbreaks are usually associated with Indo-Pacific waters, however their recent repeated occurrence in Mediterranean-European Atlantic coasts demonstrate their current worldwide distribution. Human sickness and fatalities have been associated with toxic algal blooms and ingestion of seafood contaminated with PLTX-like molecules. These toxins represent a serious threat to human health. There is an immediate need to develop easy-to-use, rapid detection methods due to the lack of validated protocols for their detection and quantification. We have developed an immuno-detection method for PLTX-like molecules based on the use of microspheres coupled to flow-cytometry detection (Luminex 200™). The assay consisted of the competition between free PLTX-like compounds in solution and PLTX immobilized on the surface of microspheres for binding to a specific monoclonal anti-PLTX antibody. This method displays an IC50 of 1.83 ± 0.21 nM and a dynamic range of 0.47-6.54 nM for PLTX. An easy-to-perform extraction protocol, based on a mixture of methanol and acetate buffer, was applied to spiked mussel samples providing a recovery rate of 104 ± 8% and a range of detection from 374 ± 81 to 4430 ± 150 μg kg(-1) when assayed with this method. Extracts of Ostreopsis cf. siamensis and Palythoa tuberculosa were tested and yielded positive results for PLTX-like molecules. However, the data obtained for the coral sample suggested that this antibody did not detect 42-OH-PLTX efficiently. The same samples were further analyzed using a neuroblastoma cytotoxicity assay and UPLC-IT-TOF spectrometry, which also pointed to the presence of PLTX-like compounds. Therefore, this single detection method for PLTX provides a semi-quantitative tool useful for the screening of PLTX-like molecules in different matrixes.
Collapse
Affiliation(s)
- María Fraga
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain
| | - Natalia Vilariño
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain.
| | - M Carmen Louzao
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain
| | - Diego A Fernández
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain
| | - Mark Poli
- Diagnostic Systems Division, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, USA
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain.
| |
Collapse
|