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Goossens E, Aalling-Frederiksen O, Tack P, Van den Eynden D, Walsh-Korb Z, Jensen KMØ, De Buysser K, De Roo J. From Gel to Crystal: Mechanism of HfO 2 and ZrO 2 Nanocrystal Synthesis in Benzyl Alcohol. J Am Chem Soc 2024; 146:10723-10734. [PMID: 38588404 PMCID: PMC11027147 DOI: 10.1021/jacs.4c00678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/08/2024] [Accepted: 03/25/2024] [Indexed: 04/10/2024]
Abstract
Nonaqueous sol-gel syntheses have been used to make many types of metal oxide nanocrystals. According to the current paradigm, nonaqueous syntheses have slow kinetics, thus favoring the thermodynamic (crystalline) product. Here we investigate the synthesis of hafnium (and zirconium) oxide nanocrystals from the metal chloride in benzyl alcohol. We follow the transition from precursor to nanocrystal through a combination of rheology, EXAFS, NMR, TEM, and X-ray total scattering (PDF analysis). Upon dissolving the metal chloride precursor, the exchange of chloride ligands for benzylalkoxide liberates HCl. The latter catalyzes the etherification of benzyl alcohol, eliminating water. During the temperature ramp to the reaction temperature (220 °C), sufficient water is produced to turn the reaction mixture into a macroscopic gel. Rheological analysis shows a network consisting of strong interactions with temperature-dependent restructuring. After a few minutes at the reaction temperature, crystalline particles emerge from the gel, and nucleation and growth are complete after 30 min. In contrast, 4 h are required to obtain the highest isolated yield, which we attribute to the slow in situ formation of water (the extraction solvent). We used our mechanistic insights to optimize the synthesis, achieving high isolated yields with a reduced reaction time. Our results oppose the idea that nonaqueous sol-gel syntheses necessarily form crystalline products in one step, without a transient, amorphous gel state.
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Affiliation(s)
- Eline Goossens
- Department
of Chemistry, Ghent University, 9000 Ghent, Belgium
- Department
of Chemistry, University of Basel, 4058 Basel, Switzerland
| | | | - Pieter Tack
- Department
of Chemistry, Ghent University, 9000 Ghent, Belgium
| | - Dietger Van den Eynden
- Department
of Chemistry, Ghent University, 9000 Ghent, Belgium
- Department
of Chemistry, University of Basel, 4058 Basel, Switzerland
| | - Zarah Walsh-Korb
- Department
of Chemistry, University of Basel, 4058 Basel, Switzerland
| | | | | | - Jonathan De Roo
- Department
of Chemistry, University of Basel, 4058 Basel, Switzerland
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2
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Goossens E, Deblock L, Caboor L, Eynden DVD, Josipovic I, Isaacura PR, Maksimova E, Van Impe M, Bonnin A, Segers P, Cornillie P, Boone MN, Van Driessche I, De Spiegelaere W, De Roo J, Sips P, De Buysser K. From Corrosion Casting to Virtual Dissection: Contrast-Enhanced Vascular Imaging using Hafnium Oxide Nanocrystals. Small Methods 2024:e2301499. [PMID: 38200600 DOI: 10.1002/smtd.202301499] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Indexed: 01/12/2024]
Abstract
Vascular corrosion casting is a method used to visualize the three dimensional (3D) anatomy and branching pattern of blood vessels. A polymer resin is injected in the vascular system and, after curing, the surrounding tissue is removed. The latter often deforms or even fractures the fragile cast. Here, a method is proposed that does not require corrosion, and is based on in situ micro computed tomography (micro-CT) scans. To overcome the lack of CT contrast between the polymer cast and the animals' surrounding soft tissue, hafnium oxide nanocrystals (HfO2 NCs) are introduced as CT contrast agents into the resin. The NCs dramatically improve the overall CT contrast of the cast and allow for straightforward segmentation in the CT scans. Careful design of the NC surface chemistry ensures the colloidal stability of the NCs in the casting resin. Using only 5 m% of HfO2 NCs, high-quality cardiovascular casts of both zebrafish and mice can be automatically segmented using CT imaging software. This allows to differentiate even μ $\umu$ m-scale details without having to alter the current resin injection methods. This new method of virtual dissection by visualizing casts in situ using contrast-enhanced CT imaging greatly expands the application potential of the technique.
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Affiliation(s)
- Eline Goossens
- Department of Chemistry, Ghent University, Ghent, 9000, Belgium
- Department of Chemistry, University of Basel, Basel, 4058, Switzerland
| | - Loren Deblock
- Department of Chemistry, Ghent University, Ghent, 9000, Belgium
| | - Lisa Caboor
- Department of Biomolecular Medicine, Ghent University, Ghent, 9000, Belgium
| | - Dietger Van den Eynden
- Department of Chemistry, Ghent University, Ghent, 9000, Belgium
- Department of Chemistry, University of Basel, Basel, 4058, Switzerland
| | - Iván Josipovic
- Center for X-ray Tomography, Ghent University, Ghent, 9000, Belgium
| | - Pablo Reyes Isaacura
- Laboratory of Veterinary Morphology, Ghent University, Merelbeke, 9820, Belgium
- Centre for Polymer Material Technologies, Ghent University, Ghent, 9052, Belgium
- Laboratory for Chemical Technology, Ghent University, Ghent, 9052, Belgium
| | - Elizaveta Maksimova
- Department of Chemistry, University of Basel, Basel, 4058, Switzerland
- Swiss Light Source, Paul Scherrer Institut, Villigen PSI, 5232, Switzerland
- Swiss Nanoscience Institute, University of Basel, Basel, 4056, Switzerland
| | - Matthias Van Impe
- Institute of Biomedical Engineering and Technology, Ghent University, Ghent, 9000, Belgium
| | - Anne Bonnin
- Swiss Light Source, Paul Scherrer Institut, Villigen PSI, 5232, Switzerland
| | - Patrick Segers
- Institute of Biomedical Engineering and Technology, Ghent University, Ghent, 9000, Belgium
| | - Pieter Cornillie
- Laboratory of Veterinary Morphology, Ghent University, Merelbeke, 9820, Belgium
| | - Matthieu N Boone
- Center for X-ray Tomography, Ghent University, Ghent, 9000, Belgium
| | | | - Ward De Spiegelaere
- Laboratory of Veterinary Morphology, Ghent University, Merelbeke, 9820, Belgium
| | - Jonathan De Roo
- Department of Chemistry, University of Basel, Basel, 4058, Switzerland
| | - Patrick Sips
- Department of Biomolecular Medicine, Ghent University, Ghent, 9000, Belgium
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3
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Delgouffe E, Braye A, Vloeberghs V, Mateizel I, Ernst C, Ferster A, Devalck C, Tournaye H, Gies I, Goossens E. Spermatogenesis after gonadotoxic childhood treatment: follow-up of 12 patients. Hum Reprod Open 2023; 2023:hoad029. [PMID: 37547664 PMCID: PMC10403430 DOI: 10.1093/hropen/hoad029] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/13/2023] [Indexed: 08/08/2023] Open
Abstract
STUDY QUESTION What is the long-term impact of presumed gonadotoxic treatment during childhood on the patient's testicular function at adulthood? SUMMARY ANSWER Although most patients showed low testicular volumes and some degree of reproductive hormone disruption 12.3 (2.3-21.0) years after gonadotoxic childhood therapy, active spermatogenesis was demonstrated in the semen sample of 8 out of the 12 patients. WHAT IS KNOWN ALREADY In recent decades, experimental testicular tissue banking programmes have been set up to safeguard the future fertility of young boys requiring chemo- and/or radiotherapy with significant gonadotoxicity. Although the risk of azoospermia following such therapies is estimated to be high, only limited long-term data are available on the reproductive potential at adulthood. STUDY DESIGN SIZE DURATION This single-centre prospective cohort study was conducted between September 2020 and February 2023 and involved 12 adult patients. PARTICIPANTS/MATERIALS SETTING METHODS This study was carried out in a tertiary care centre and included 12 young adults (18.1-28.3 years old) who had been offered testicular tissue banking prior to gonadotoxic treatment during childhood. All patients had a consultation and physical examination with a fertility specialist, a scrotal ultrasound to measure the testicular volumes and evaluate the testicular parenchyma, a blood test for assessment of reproductive hormones, and a semen analysis. MAIN RESULTS AND THE ROLE OF CHANCE Testicular tissue was banked prior to the gonadotoxic treatment for 10 out of the 12 included patients. Testicular volumes were low for 9 patients, and 10 patients showed some degree of reproductive hormone disruption. Remarkably, ongoing spermatogenesis was demonstrated in 8 patients at a median 12.3 (range 2.3-21.0) years post-treatment. LIMITATIONS REASONS FOR CAUTION This study had a limited sample size, making additional research with a larger study population necessary to verify these preliminary findings. WIDER IMPLICATIONS OF THE FINDINGS These findings highlight the need for multicentric research with a larger study population to establish universal inclusion criteria for immature testicular tissue banking. STUDY FUNDING/COMPETING INTERESTS This study was conducted with financial support from the Research Programme of the Research Foundation-Flanders (G010918N), Kom Op Tegen Kanker, and Scientific Fund Willy Gepts (WFWG19-03). The authors declare no competing interests. TRIAL REGISTRATION NUMBER NCT04202094; https://clinicaltrials.gov/ct2/show/NCT04202094?id=NCT04202094&draw=2&rank=1 This study was registered on 6 December 2019, and the first patient was enrolled on 8 September 2020.
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Affiliation(s)
- E Delgouffe
- Correspondence address. Department of Reproduction, Genetics and Regenerative Medicine (RGRG), Biology of the Testis (BITE), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium. Tel: +32-(0)2-477-46-44; E-mail: https://orcid.org/0000-0001-5611-2173
| | - A Braye
- Department of Reproduction, Genetics and Regenerative Medicine (RGRG), Biology of the Testis (BITE), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - V Vloeberghs
- Brussels IVF, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - I Mateizel
- Brussels IVF, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - C Ernst
- Division of Paediatric Radiology, Department of Radiology, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - A Ferster
- Department of Hemato-Oncology, Hôpital Universitaire des Enfants Reine Fabiola (HUDERF), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - C Devalck
- Department of Hemato-Oncology, Hôpital Universitaire des Enfants Reine Fabiola (HUDERF), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - H Tournaye
- Brussels IVF, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
- Department of Obstetrics, Gynaecology, Perinatology and Reproduction, Institute of Professional Education, Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - I Gies
- Division of Paediatric Endocrinology, Department of Paediatrics, Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - E Goossens
- Department of Reproduction, Genetics and Regenerative Medicine (RGRG), Biology of the Testis (BITE), Vrije Universiteit Brussel (VUB), Brussels, Belgium
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4
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Van den Eynden D, Pokratath R, Mathew JP, Goossens E, De Buysser K, De Roo J. Fatty acid capped, metal oxo clusters as the smallest conceivable nanocrystal prototypes. Chem Sci 2023; 14:573-585. [PMID: 36741516 PMCID: PMC9847641 DOI: 10.1039/d2sc05037d] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/26/2022] [Indexed: 12/14/2022] Open
Abstract
Metal oxo clusters of the type M6O4(OH)4(OOCR)12 (M = Zr or Hf) are valuable building blocks for materials science. Here, we synthesize a series of zirconium and hafnium oxo clusters with ligands that are typically used to stabilize oxide nanocrystals (fatty acids with long and/or branched chains). The fatty acid capped oxo clusters have a high solubility but do not crystallize, precluding traditional purification and single-crystal XRD analysis. We thus develop alternative purification strategies and we use X-ray total scattering and Pair Distribution Function (PDF) analysis as our main method to elucidate the structure of the cluster core. We identify the correct structure from a series of possible clusters (Zr3, Zr4, Zr6, Zr12, Zr10, and Zr26). Excellent refinements are only obtained when the ligands are part of the structure model. Further evidence for the cluster composition is provided by nuclear magnetic resonance (NMR), infrared spectroscopy (FTIR), thermogravimetry analysis (TGA), and mass spectrometry (MS). We find that hydrogen bonded carboxylic acid is an intrinsic part of the oxo cluster. Using our analytical tools, we elucidate the conversion from a Zr6 monomer to a Zr12 dimer (and vice versa), induced by carboxylate ligand exchange. Finally, we compare the catalytic performance of Zr12-oleate clusters with oleate capped, 5.5 nm zirconium oxide nanocrystals in the esterification of oleic acid with ethanol. The oxo clusters present a five times higher reaction rate, due to their higher surface area. Since the oxo clusters are the lower limit of downscaling oxide nanocrystals, we present them as appealing catalytic materials, and as atomically precise model systems. In addition, the lessons learned regarding PDF analysis are applicable to other areas of cluster science as well, from semiconductor and metal clusters, to polyoxometalates.
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Affiliation(s)
- Dietger Van den Eynden
- Department of Chemistry, University of BaselMattenstrasse 24a4058 BaselSwitzerland,Department of Chemistry, University of GhentKrijgslaan 2819000 GhentBelgium
| | - Rohan Pokratath
- Department of Chemistry, University of BaselMattenstrasse 24a4058 BaselSwitzerland
| | | | - Eline Goossens
- Department of Chemistry, University of BaselMattenstrasse 24a4058 BaselSwitzerland,Department of Chemistry, University of GhentKrijgslaan 2819000 GhentBelgium
| | | | - Jonathan De Roo
- Department of Chemistry, University of BaselMattenstrasse 24a4058 BaselSwitzerland
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De Hosson M, Goossens E, De Groote K, Muino Mosquera L, Wynendaele H, De Backer J. Preferences for disease-related information and transitional skills among adolescents with congenital heart disease in the early transitional stage. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1863] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction and aims
The transition towards adult-focused healthcare comprises a complex process through which adolescents with congenital heart disease (CHD) should be carefully guided. Various task forces encourage implementing person-tailored transition programs, but detailed data on adolescents' preferences regarding disease-related information and acquirable transitional skills are mostly lacking. This study examined these preferences towards adolescents with moderately and severely complex CHD.
Material and methods
A cross-sectional descriptive study including logistic regression analysis was performed in a Belgian tertiary CHD center with adolescents recruited from “Transition With a Heart” (TWAH). For this 4-year transition program, adolescents were invited to complete a communication paper (focused on the need for information) and an individualized transition plan (focused on the evaluation of transitional skills) prior to an outpatient visit. Only questionnaires completed in the early transition stage, from January 2016 to August 2021, were used for data analysis.
Results
Forty-nine adolescents completed both questionnaires at an average age of 15.9±1.2 years. Of all adolescents, 59% indicated the need for information about the heart defect and surgical treatment, followed by 45% that expressed the need for information about sports and medication; and ≤27% regarding psychosocially-related topics. The proportion of girls needing information was larger than boys. Significantly more girls than boys requested information about surgeries (76% versus 46%; p=0.04). Younger adolescents were more likely to express a need for information about most topics and significantly more likely regarding surgeries (odds ratio=0.53; 95% CI [0.26 to 0.88]; p=0.03).
A maximum of 14% of adolescents were interested in acquiring transitional skills. Larger proportions of adolescents perceived the relevant transitional skills as insufficient, from 21% to 83%.
Conclusion
The preferences for disease-related information of adolescents with CHD are mainly related to medical topics and tend to decrease with increasing age. This motivates timely gauging of individual information needs and delivering disease-related information, ideally in the early teens. Furthermore, preferences varied according to gender, with more information requested by girls.
Adolescents expressed minimal needs to acquire transitional skills despite the low self-perceived skills levels. This paradox requires further research to enable the adaptation of transition interventions.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M De Hosson
- University Hospital Ghent, Adult Congenital Heart Disease , Gent , Belgium
| | - E Goossens
- University of Antwerp, Centre for Research and Innovation in Care (CRIC), Department of Nursing and Midwifery Sciences , Antwerp , Belgium
| | - K De Groote
- University Hospital Ghent, Pediatric cardiology , Gent , Belgium
| | - L Muino Mosquera
- University Hospital Ghent, Pediatric cardiology , Gent , Belgium
| | - H Wynendaele
- Ghent University, Department of Public Health and Primary Care & Health Economics , Ghent , Belgium
| | - J De Backer
- University Hospital Ghent, Adult Congenital Heart Disease , Gent , Belgium
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6
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Van Bulck L, Goossens E, Morin L, Luyckx K, Ombelet F, Willems R, Budts W, De Groote K, De Backer J, Annemans L, Moniotte S, De Hosson M, Marelli A, Ecarnot F, Moons P. End-of-life and palliative care provision to adults with congenital heart disease: mortality follow-back study using administrative data. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1841] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Although many adults with congenital heart disease (CHD) still die prematurely, end-of-life care for these patients receives limited attention. There are indications that current care provision at the end of life is burdensome, expensive, and not in line with patients' needs and preferences. We sought to analyse end-of-life care in adult CHD patients to determine whether health services need to be optimized.
Purpose
This study aimed to describe patterns of healthcare consumption of adults with CHD who died in the last year of life.
Methods
This retrospective mortality follow-back study used data of the BELgian COngenital heart disease Database combining Administrative and Clinical data (BELCODAC), including individually linked healthcare claims, death certificates and clinical data from adults with CHD in Flanders (Belgium). For this study, adults with CHD who died between 2007 and 2016 from any cause except sudden death, accident or violence, were selected for inclusion. Accidental, violent, and sudden deaths were identified based on causes of death and healthcare use in the last 3 months of life. Healthcare consumption was based on nomenclature codes derived from healthcare claims data.
Results
A total of 327 eligible patients (median age: 58 y; 54% women; 43% mild CHD; 45% moderate CHD; 11% complex CHD; 49% cardiovascular cause of death) were identified. During the last year of life, healthcare use increased substantially (Fig. 1). During the last month of life, 54% of patients were hospitalised, 55% visited the emergency department, and 15% were admitted to an intensive care unit at least once (Fig. 2). A total of 8% and 5% of patients underwent heart surgery or catherization in the last month of life, respectively. Furthermore, 70% of patients had at least one encounter with a general practitioner and 11% with a CHD specialist in the last month of life. Specialist palliative care was provided to 13% of patients in the last month of life.
When looking at the subgroup of patients with CHD that died due to a cardiovascular cause, proportions of patients that were hospitalised or had visits at the emergency department or intensive care unit in the last month of life were similar (Fig. 2). However, these patients underwent more heart surgeries (11%) and catherizations (8%), had more encounters with CHD specialists (15%), and received remarkably less specialized palliative care (4%) in the last month of life.
Conclusion
Resource utilization increased substantially during the last year of life, resulting in high acute healthcare consumption in the last month of life. It is remarkable that only a minority of patients received palliative care, especially when looking at patients who died due to a cardiovascular cause. Our findings motivate the need to assess if and how end-of-life is planned for adults with CHD. Future studies using qualitative analyses and survey methodology are needed to optimize the management of end-of-life care.
Funding Acknowledgement
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): Research Foundation Flanders, European Society of Cardiology, Koning Boudewijnstichting, National Foundation on Research in Pediatric Cardiology, Swedish Research Council for Health, Working Life and Welfare-FORTE
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Affiliation(s)
- L Van Bulck
- University of Leuven, Department of Public Health and Primary Care , Leuven , Belgium
| | - E Goossens
- University of Antwerp, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care , Antwerp , Belgium
| | - L Morin
- Regional University Hospital Jean Minjoz, Inserm Centre d'investigation clinique 1431 , Besancon , France
| | - K Luyckx
- University of Leuven, Department of Psychology and Educational Sciences , Leuven , Belgium
| | - F Ombelet
- University Hospitals (UZ) Leuven, Division of Neurology , Leuven , Belgium
| | - R Willems
- Ghent University, Department of Public Health and Primary Care , Ghent , Belgium
| | - W Budts
- University Hospitals (UZ) Leuven, Division of Congenital and Structural Cardiology , Leuven , Belgium
| | - K De Groote
- University Hospital Ghent, Department of Pediatric Cardiology , Gent , Belgium
| | - J De Backer
- University Hospital Ghent, Department of Adult Congenital Cardiology , Gent , Belgium
| | - L Annemans
- Ghent University, Department of Public Health and Primary Care , Ghent , Belgium
| | - S Moniotte
- University Hospitals St Luc Brussels, Pediatric and Congenital Cardiology Department , Brussels , Belgium
| | - M De Hosson
- University Hospital Ghent, Department of Adult Congenital Cardiology , Gent , Belgium
| | - A Marelli
- McGill University Health Centre, McGill Adult Unit for Congenital Heart Disease Excellence (MAUDE Unit) , Montreal , Canada
| | - F Ecarnot
- Regional University Hospital Jean Minjoz, Department of Cardiology , Besancon , France
| | - P Moons
- University of Leuven, Department of Public Health and Primary Care , Leuven , Belgium
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7
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Silva S, Richer G, Goossens E, Baert Y. P12-03 Rethinking human testicular organoid formation: the missing toxicological model for the human testis? Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.482] [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: 10/14/2022]
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8
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Zhang L, Goossens E, De Vries M, Jukema W, Quax P, Nossent Y. Cold-inducible RNA-binding protein but not its antisense lncrna is a direct negative regulator of angiogenesis via regulation of the 14q32 angio-miRs—microRNA-329-3p and microRNA-495-3p. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.1009] [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: 11/02/2022]
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9
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Van Bulck L, Goossens E, Morin L, Luyckx K, Ombelet F, Willems R, Budts W, De Groote K, De Backer J, Moniotte S, De Hosson M, Marelli A, Moons P. Healthcare use at the end of life of patients with congenital heart disease: does heart failure matter? Eur J Cardiovasc Nurs 2022. [DOI: 10.1093/eurjcn/zvac060.028] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): Research Foundation Flanders (to PM, EG, and LVB)
European Society of Cardiology (Nursing Training Grant to LVB)
Background
Heart failure (HF) is a common cause of morbidity and mortality in patients with congenital heart disease (CHD). Although limited in scope, previous studies suggest that patients with heart failure follow a specific end-of-life trajectory with episodes of serious complications, which may impact the patterns of care as death approaches.
Aims
The study aims to identify differences in characteristics and patterns of care in the last year of life in deceased CHD patients with and without HF.
Methods
This retrospective study used data of deceased adult patients included in the BELgian COngenital heart disease Database combining Administrative and Clinical data (BELCODAC). To describe patterns of care in the last year of life, we captured information about hospitalisations, emergency department visits, and visits to the general practitioner using nomenclature codes. Heart failure was identified as having HF as cause of death and/or at least one prescription of a loop diuretic in the last year of life. Sensitivity analyses with a stricter definition for HF (HF as cause of death or ≥ 1 prescription of a loop diuretic combined with a prescription of digoxin, dopamine, dobutamine, other non-glycoside stimulants, metoprolol, bisoprolol, carvedilol, aldosterone antagonists, ACE inhibitors or ARBs) were performed as well.
Results
During the period 2007–2016, 390 adults with CHD died, of which 170 patients with HF (44%). Patients with HF were older, died more often due to a cardiovascular cause of death, and had more complex heart lesions, compared to patients without HF (Table 1). While the number of emergency department visits and hospitalisations in the last year was similar, patients with HF had almost twice as much monthly visits at the general practitioner in their last year of life (Table 1). As shown in Figure 1, the mean number of hospitalisations and emergency department visits increased in a similar fashion throughout the last year of life, but the pattern of general practitioner visits was substantially different for patients with and without HF. The sensitivity analyses, in which a stricter definition for HF was used, yield very similar results. In these analyses, the difference in mean monthly hospitalisations was also significant between the two groups.
Conclusions
This study shows clinically important differences in characteristics and patterns of care of deceased patients with CHD with and without heart failure. Patients with HFhave different needs and should receive a tailored approach at the end of life. Future research is needed to understand these differences and investigate these patients' end-of-life care needs in more detail.
Funding acknowledgments: This work was supported by Research Foundation Flanders; European Society of Cardiology; the King Baudouin Foundation; the National Foundation on Research in Pediatric Cardiology; and the Swedish Research Council for Health, Working Life and Welfare-FORTE.
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Affiliation(s)
- L Van Bulck
- University of Leuven, Department of Public Health and Primary Care , Leuven , Belgium
| | - E Goossens
- University of Antwerp, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care , Antwerp , Belgium
| | - L Morin
- Regional University Hospital Jean Minjoz, Inserm Centre d'investigation clinique 1431 , Besancon , France
| | - K Luyckx
- University of Leuven, Department of Psychology and Educational Sciences , Leuven , Belgium
| | - F Ombelet
- University Hospitals (UZ) Leuven, Division of Neurology , Leuven , Belgium
| | - R Willems
- Ghent University, Department of Public Health and Primary Care , Ghent , Belgium
| | - W Budts
- University Hospitals (UZ) Leuven, Division of Congenital and Structural Cardiology , Leuven , Belgium
| | - K De Groote
- University Hospital Ghent, Department of Pediatric Cardiology , Gent , Belgium
| | - J De Backer
- University Hospital Ghent, Department of Adult Congenital Cardiology , Gent , Belgium
| | - S Moniotte
- Cliniques Saint-Luc UCL, Pediatric and Congenital Cardiology Department , Brussels , Belgium
| | - M De Hosson
- University Hospital Ghent, Department of Adult Congenital Cardiology , Gent , Belgium
| | - A Marelli
- McGill University Health Centre, McGill Adult Unit for Congenital Heart Disease Excellence (MAUDE Unit) , Montreal , Canada
| | - P Moons
- University of Leuven, Department of Public Health and Primary Care , Leuven , Belgium
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10
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Willems M, Olsen C, Caljon B, Heremans Y, Vloeberghs V, De schepper J, Tournaye H, Van Saen D, Goossens E. P-087 Transcriptomic differences between fibrotic and non-fibrotic testicular tissue reveal possible key players in Klinefelter syndrome-related testicular fibrosis. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.083] [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
Which genes are differentially expressed between patients with and without testicular fibrosis?
Summary answer
This study revealed three X-related genes MXRA5, DCX and VC3BX, which may be involved in Klinefelter-related testicular fibrosis.
What is known already
Klinefelter syndrome (KS; 47,XXY) affects 1-2 in 1000 males. Most KS men suffer from azoospermia due to a loss of spermatogonial stem cells. Additionally, testicular fibrosis is detected from puberty onwards. However, mechanisms responsible for fibrosis and germ cell loss remain unknown. Previous genomics studies on KS tissue focused on germ cell loss, however, differential gene expression analyses focused on testicular fibrosis have not been performed before.
This study aimed to identify factors involved in the fibrotic remodeling of KS testes by analyzing the transcriptome of (non-)fibrotic testicular tissue.
Study design, size, duration
Transcriptome analysis on extracted RNA from testicular biopsies was performed. RNA scope analysis and immunohistochemistry were performed as validation for the findings of the transcriptomics study.
Participants/materials, setting, methods
RNA sequencing was performed to compare the genetic profile of testicular biopsies from patients with (KS and testis atrophy) and without (Sertoli cell-only syndrome and fertile controls) testicular fibrosis (n = 5, each). Next, differentially expressed genes (DEGs) between KS and testis atrophy samples were compared. To gain insight in potential functions of DEGs (significant when p < 0.01 and log2FC > 2), gene-ontology and KEGG analyses were performed. To validate the gene expression results, immunohistochemistry and RNA scope were performed.
Main results and the role of chance
A first transcriptomic analysis of fibrotic versus non-fibrotic testis tissue resulted in 734 significant DEGs (167 up- and 567 downregulated), of which 26 were X-linked. In the top upregulated biological functions, DEGs involved in the extracellular structure organization were found, including vascular cell adhesion molecule 1 (VCAM1). KEGG analysis showed an upregulation of genes involved in the TGF-β pathway.
The second analysis of KS versus testis atrophy samples resulted in 539 significant DEGs (59 up- and 480 downregulated). One of the biological functions found though gene ontology analysis was the chronic inflammatory response. When looking at the overlap of DEGs on the X-chromosome from the first and second analysis, three genes were found: matrix-remodeling associated 5 (MXRA5), doublecortin (DCX) and variable charge X-Linked 3B (VCX3B).
Through validation by immunohistochemistry and RNA scope, an overexpression of VCAM1, MXRA5 and DCX was found within the fibrotic group compared to the non-fibrotic group.
Limitations, reasons for caution
The study included fresh testis tissue from adult KS patients, however these are quite scarce, resulting in a low number of included patients per group (n = 5).
Wider implications of the findings
This study revealed genes which may play a role in testicular fibrosis, including VCAM1. In addition, fibrotic genes on the X-chromosome were revealed: MXRA5, DCX and VCX3B. Up- or downregulation of these genes may prevent testicular fibrosis and thus enhance the chances at retrieving spermatozoa from KS patients.
Trial registration number
NA
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Affiliation(s)
- M Willems
- Vrije Universiteit Brussel, Biology of the testis , Brussel, Belgium
| | - C Olsen
- UZ Brussel, Interuniversity Genomics High Throughput core BRIGHTcore platform , Brussel, Belgium
| | - B Caljon
- UZ Brussel, Interuniversity Genomics High Throughput core BRIGHTcore platform , Brussel, Belgium
| | - Y Heremans
- Vrije Universiteit Brussel, Laboratory of Beta Cell Neogenesis , Brussel, Belgium
| | - V Vloeberghs
- UZ Brussel, Centre for Reproductive Medicine , Brussel, Belgium
| | - J De schepper
- UZ Brussel, Department of Pediatrics- Division of Pediatric Endocrinology , Brussel, Belgium
| | - H Tournaye
- UZ Brussel, Centre for Reproductive Medicine , Brussel, Belgium
| | - D Van Saen
- Vrije Universiteit Brussel, Biology of the testis , Brussel, Belgium
| | - E Goossens
- Vrije Universiteit Brussel, Biology of the testis , Brussel, Belgium
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11
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Richer G, Goossens E, Baert Y. P-088 Standardized fabrication of murine testicular organoids with improved germ cell survival. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.084] [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 our newly developed testicular organoid (TO) growth platform advance the robustness of murine TOs?
Summary answer
The platform resulted in more consistent TO histology. Moreover, improved germ cell survival was observed after a two-week culture with numbers comparable to fresh samples.
What is known already
Organ cultures have traditionally been used for in-vitro spermatogenesis (IVS) in rodents because they best preserve the testicular architecture which is pivotal in achieving IVS. However, organ cultures do not offer the ability to access and manipulate single cells, making it an inefficient model for mechanistic studies. Organoids made from testicular cell suspensions offer these features. Although TO cultures can result in organoids with compartmentalized testicular architecture, histological heterogeneity between individual TOs limits reproducibility of the results, offering unreliable readouts. Moreover, germ cell loss is characteristic during the reorganization phase.
Study design, size, duration
Here, we tested a new TO growth platform. Firstly, the focus was put on improving germ cell survival in TOs during tubulogenesis in the first two weeks of culture. For this, four different growth media (A-D), supplemented with other combinations or concentrations of growth factors, were compared. Next, five cell seeding densities (I-V) were tested for their ability to recreate the testicular architecture in TOs in the selected culture media.
Participants/materials, setting, methods
Testicular cells from 5 days old C57BL/6J mice were grown in our TO platform with alpha-MEM-based medium, previously found to support TO generation in mice (medium A). Three additional conditions were tested in their ability to improve germ cell survival during tubulogenesis (B-D). Finally, the ideal cell density (I-V) was determined based on histological resemblance to native tissue: one tubule-like structure and surrounding interstitium. Cellular reorganization and germ cell maintenance were characterized by (immuno)histochemistry.
Main results and the role of chance
During short-term cultures of 2 weeks, testicular cells self-assembled and compacted into organoids in our platform. Interestingly, media B and D resulted in the highest amount of germ cells (p < 0.05), comparable to the fresh control. Particularly TOs cultured in medium D also exhibited the largest surface area, indicative for better in-vitro growth. Finally, TOs that were cultured in condition D had the best histology when grown at cell density IV and V (p < 0.05).
Limitations, reasons for caution
Candidate factors have to be tested in their ability to elevate the meiotic blockage of germ cells typically observed in organ culture, but also in TOs. Finally, results obtained with rodents remain to be confirmed in further human studies.
Wider implications of the findings
The opportunities TOs offer to manipulate cells (genetic modification, inclusion and exclusion) are essential for the study of male infertility and the search for potential therapies. Moreover, they permit high-throughput screening of chemicals, thereby substantially reducing the number of animals for the high demanding reproductive toxicity and drug discovery studies.
Trial registration number
not applicable
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Affiliation(s)
- G Richer
- Vrije Universiteit Brussel, Biology of the Testis- Research Laboratory for Reproduction- Genetics and Regenerative Medicine , Jette, Belgium
| | - E Goossens
- Vrije Universiteit Brussel, Biology of the Testis- Research Laboratory for Reproduction- Genetics and Regenerative Medicine , Jette, Belgium
| | - Y Baert
- Vrije Universiteit Brussel, Biology of the Testis- Research Laboratory for Reproduction- Genetics and Regenerative Medicine , Jette, Belgium
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12
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Deblock L, Goossens E, Pokratath R, De Buysser K, De Roo J. Mapping out the Aqueous Surface Chemistry of Metal Oxide Nanocrystals: Carboxylate, Phosphonate, and Catecholate Ligands. JACS Au 2022; 2:711-722. [PMID: 35373200 PMCID: PMC8969999 DOI: 10.1021/jacsau.1c00565] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Indexed: 05/24/2023]
Abstract
Iron oxide and hafnium oxide nanocrystals are two of the few successful examples of inorganic nanocrystals used in a clinical setting. Although crucial to their application, their aqueous surface chemistry is not fully understood. The literature contains conflicting reports regarding the optimum binding group. To alleviate these inconsistencies, we set out to systematically investigate the interaction of carboxylic acids, phosphonic acids, and catechols to metal oxide nanocrystals in polar media. Using nuclear magnetic resonance spectroscopy and dynamic light scattering, we map out the pH-dependent binding affinity of the ligands toward hafnium oxide nanocrystals (an NMR-compatible model system). Carboxylic acids easily desorb in water from the surface and only provide limited colloidal stability from pH 2 to pH 6. Phosphonic acids, on the other hand, provide colloidal stability over a broader pH range but also feature a pH-dependent desorption from the surface. They are most suited for acidic to neutral environments (pH <8). Finally, nitrocatechol derivatives provide a tightly bound ligand shell and colloidal stability at physiological and basic pH (6-10). Whereas dynamically bound ligands (carboxylates and phosphonates) do not provide colloidal stability in phosphate-buffered saline, the tightly bound nitrocatechols provide long-term stability. We thus shed light on the complex ligand binding dynamics on metal oxide nanocrystals in aqueous environments. Finally, we provide a practical colloidal stability map, guiding researchers to rationally design ligands for their desired application.
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Affiliation(s)
- Loren Deblock
- Department
of Chemistry, Ghent University, 9000 Ghent, Belgium
- Department
of Chemistry, University of Basel, 4058 Basel, Switzerland
| | - Eline Goossens
- Department
of Chemistry, Ghent University, 9000 Ghent, Belgium
| | - Rohan Pokratath
- Department
of Chemistry, University of Basel, 4058 Basel, Switzerland
| | | | - Jonathan De Roo
- Department
of Chemistry, University of Basel, 4058 Basel, Switzerland
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13
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Van Hecke A, Van Bogaert P, Decoene E, Dobbels F, Goossens E, Goossens G, Verhaeghe S, Goffin T. A legal framework on advanced practice nursing in Belgium: what do we and don't we know? Acta Clin Belg 2022; 77:65-70. [PMID: 32700632 DOI: 10.1080/17843286.2020.1795575] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Presenting the Belgian new framework for Advanced Practice Nursing (APN) - 'Verpleegkundig Specialist [VS]'/"Infirmier de pratique avancée [IPA]" outlined in the Law of 22 April 2019, followed by a discussion of the lack of clarity, the current challenges and future opportunities. METHODS The framework was analyzed by an expert in healthcare legislation and discussed by academics in Nursing Science and members of the board of directors of the Belgian Society of APN. RESULTS Relevant paragraphs within this new law are"Article 46 §1. No one is allowed to carry the title of 'VS/IPA' who does not possess a bachelor in nursing mentioned in article 45 and who does not meet the requirements specified in this article. At the minimum, a master's degree in Nursing Sciences is also required. §2. Additional to the scope of practice of nursing as mentioned in article 46, the 'VS/IPA' perform, in the context of complex nursing care, medical interventions in order to maintain, improve or restore the health of the patient. Care is provided in the context of a specific target group of patients and in close concertation with the physician and potential other healthcare professionals. CONCLUSION Although the legal recognition of the title of VS/IPA is a major breakthrough that will innovate healthcare, clarification is needed: How do VS/IPA distinguish themselves from other nursing functions, what is complex nursing care, which medical interventions can be performed, what is meant by specific target group of patients, what does 'in close concertation with the physician' entail, and will advisory power be possible?
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Affiliation(s)
- A. Van Hecke
- University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
- Nursing Department, Ghent University Hospital, Ghent, Belgium
| | - P. Van Bogaert
- Center for Research and Innovation in Care, Department of Midwifery and Nursing Sciences, Antwerp University, Antwerp, Belgium
| | - E. Decoene
- Department of Oncology, Oncology Centre, Ghent University Hospital, Ghent, Belgium
| | - F. Dobbels
- Academic Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Leuven, Belgium
| | - E. Goossens
- Center for Research and Innovation in Care, Department of Midwifery and Nursing Sciences, Antwerp University, Antwerp, Belgium
- Academic Center for Nursing and Midwifery, Department of Public Health and Primary Care, Leuven, Belgium
| | - G.A. Goossens
- Academic Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Leuven, Belgium
- Department of Nursing, Nursing Centre of Excellence, University Hospitals, Leuven, Belgium
| | - S. Verhaeghe
- University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
- Department of Nursing, VIVES University College, Roeselare, Belgium
| | - T. Goffin
- Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
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14
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Willems M, Seβenhausen P, Gies I, Vloeberghs V, Tournaye H, Goossens E, Van Saen D. To graft or not to graft? Intratesticular xenografting of (pre)pubertal testicular tissue from Klinefelter patients as potential ex vivo model to study testicular fibrosis. Reprod Biomed Online 2022; 44:896-906. [DOI: 10.1016/j.rbmo.2022.01.009] [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: 08/24/2021] [Revised: 01/07/2022] [Accepted: 01/18/2022] [Indexed: 12/01/2022]
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15
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Liotta G, Roller-Wirnsberger R, Iaccarino G, Goossens E, Tziraki C, Obbia P, Pais S, Cacciatore F, Zavagli V, Schena F, Vinci A, D'Amico G, Terraciano E, Gentili S, Lindner S, Illario M. From the bench to practice - Field integration of community-based services for older citizens with different levels of functional limitation across European Regions. Transl Med UniSa 2021; 23:1-8. [PMID: 34447704 PMCID: PMC8370530 DOI: 10.37825/2239-9747.1020] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The meeting of the European Innovation Partnership on Active and Healthy Ageing (EIPonAHA) action group A3 together with members of the Reference site collaborative network (RSCN) in December 2019 in Rome focused on integration of evidence-based approaches on health and care delivery for older citizens at different levels of needs with expertise coming from stakeholder across Europe. It was the final aim of the group to co-create culturally sensitive pathways and facilitate co-ownership for further implementation of the pathways in different care systems across Europe. The study design is a mixed method approach. Based on data analysis from a cohort of community-dwelling over-65 citizens in the framework of a longitudinal observational study in Rome, which included health, social and functional capacity data, three personas profiles were developed: the pre-frail, the frail and the very frail personas. Based on these data, experts were asked to co-create care pathways due to evidence and eminence during a workshop and included into a final report. All working groups agreed on a common understanding that integration of care means person-centered integration of health and social care, longitudinally provided across primary and secondary health care including citizens’ individual social, economic and human resources. Elements for consideration during care for pre-frail people are loneliness and social isolation, which, lead to limitation of physical autonomy in the light of reduced access to social support. Frail people need adaption of environmental structures and, again, social resource allocation to maintain at home. Very frail are generally vulnerable patients with complex needs. Most of them remain at home because of a strong individual social support and integrated health care delivery. The approach described in this publication may represent a first approach to scaling-up care delivery in a person-centered approach.
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Affiliation(s)
- G Liotta
- University of Rome "Tor Vergata", Department of Biomedicine and Prevention, Rome, Italy
| | | | - G Iaccarino
- University of Naples "Federico II", Department of Advanced Biomedical Sciences, Naples, Italy
| | | | - C Tziraki
- Research Institute, Melabev and Hebrew University, Jerusalem, Israel
| | - P Obbia
- University of Turin, Department of Medical Science, Turin, Italy
| | - S Pais
- University of Algarve, Department of Biomedical Sciences and Medicine, Algarve Biomedical Center, Portugal.,Comprehensive Health Research Centre (CHRC), Portugal
| | - F Cacciatore
- University of Naples "Federico II", Department of Translational Science, Naples, Italy
| | - V Zavagli
- Psycho-oncology Unit, ANT Foundation, Bologna, Italy
| | - F Schena
- University of Verona, Department of Neurosciences, Biomedicine and Movement Sciences, Verona, Italy
| | - A Vinci
- University of Rome "Tor Vergata", Department of Biomedicine and Prevention, Rome, Italy
| | - G D'Amico
- University of Rome "Tor Vergata", Department of Biomedicine and Prevention, Rome, Italy
| | - E Terraciano
- University of Rome "Tor Vergata", Department of Biomedicine and Prevention, Rome, Italy
| | - S Gentili
- University of Rome "Tor Vergata", Department of Biomedicine and Prevention, Rome, Italy
| | - S Lindner
- Medical University of Graz, Department of Internal Medicine, Graz, Austria
| | - M Illario
- University of Naples "Federico II", Department of Public Health, Naples, Italy
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16
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Van Bulck L, Goossens E, Luyckx K, Ombelet F, Willems R, De Hosson M, Annemans L, Budts W, De Backer J, Moniotte S, Marelli A, De Groote K, Moons P. Provision of palliative care to adults with congenital heart disease at the end of life. Eur J Cardiovasc Nurs 2021. [DOI: 10.1093/eurjcn/zvab060.029] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): This work was supported by Research Foundation Flanders [grant numbers G097516N to PM, 12E9816N to EG and 1154719N to LVB]; the King Baudouin Foundation (Fund Joseph Oscar Waldmann-Berteau & Fund Walckiers Van Dessel); the National Foundation on Research in Pediatric Cardiology; and the Swedish Research Council for Health, Working Life and Welfare -FORTE (grant number STYA-2018/0004).
OnBehalf
BELCODAC consortium
Background
Although recent position papers have discussed and advocated for the integration of palliative care in the treatment course of adults with congenital heart defects (CHD), empirical studies reporting to what extent palliative care is currently provided, are still lacking.
Purpose
(1) To explore the current provision of palliative care to adults with CHD in the last 6 months of their life; and (2) to describe the profile of patients who received palliative care.
Methods
In this retrospective study, data of deceased adult patients included in the BELgian COngenital heart disease Database combining Administrative and Clinical data (BELCODAC) were analysed. Palliative care provision (i.e., admission to palliative care ward, or palliative care at home) was identified using nomenclature codes. The level of anatomical complexity was based on the Bethesda classification. Descriptive analyses were performed.
Results
During the period 2006-2016, 480 adults with CHD died (mean age: 54.4y; 45% simple CHD, 43% moderate CHD, 12% complex CHD). We identified that 75 patients (16%) had at least one nomenclature code linked to palliative care in the last 6 months of their life. More specifically, 16 patients were admitted to an inpatient palliative care service and 67 patients received palliative care at home. Of the patients who received palliative care at home, 40 patients were cared for by a multidisciplinary team specialized in palliative care provision and 59 patients received care from nurses and/or general practitioners while being recognized as a palliative patient. A total of 8 patients received palliative care both at the inpatient palliative care service and at home.
Of the 75 patients receiving palliative care, 44 (59%) had a neoplasm as the primary cause of death and a cardiac cause of death was reported for 10 patients (13%) (see Figure 1). The mean age of patients receiving palliative care was 57.9 years. Most patients receiving palliative care had a simple CHD (n = 40; 53%), 29 patients (39%) had a moderate lesion, and 6 patients (8%) had a complex lesion. That means that, respectively, 19%, 14%, and 11% of all deceased patients with a simple, moderate, and complex heart lesion received palliative care.
Conclusions
This is the first exploratory study on palliative care in adults with CHD. About one in six patients who died received palliative care. Of those who received palliative care, the cause of death was in most cases of a non-cardiac nature. Further research is needed to investigate the care trajectories and care needs of adults with CHD in the last months of life.
Figure 1. Causes of death of adults with CHD who received palliative care in the last 6 months of life (n = 75).
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Affiliation(s)
- L Van Bulck
- KU Leuven, Department of Public Health and Primary Care, Leuven, Belgium
| | - E Goossens
- University of Antwerp, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care, Antwerp, Belgium
| | - K Luyckx
- KU Leuven, Department of School Psychology and Development in Context, Leuven, Belgium
| | - F Ombelet
- KU Leuven, VIB - KU Leuven Center for Brain & Disease Research, Leuven, Belgium
| | - R Willems
- Ghent University, Department of Public Health and Primary Care, Ghent, Belgium
| | - M De Hosson
- Ghent University Hospital, Department of Adult Congenital Cardiology, Ghent, Belgium
| | - L Annemans
- Ghent University, Department of Public Health and Primary Care, Ghent, Belgium
| | - W Budts
- University Hospitals (UZ) Leuven, Division of Congenital and Structural Cardiology, Leuven, Belgium
| | - J De Backer
- Ghent University Hospital, Department of Adult Congenital Cardiology, Ghent, Belgium
| | - S Moniotte
- Cliniques Saint-Luc UCL, Pediatric and Congenital Cardiology Division, Brussels, Belgium
| | - A Marelli
- McGill University Health Centre, McGill Adult Unit for Congenital Heart Disease Excellence (MAUDE Unit), Montreal, Canada
| | - K De Groote
- University Hospital Ghent, Department of Pediatrics, Pediatric Cardiology, Gent, Belgium
| | - P Moons
- KU Leuven, Department of Public Health and Primary Care, Leuven, Belgium
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17
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Baert Y, Ruetschle I, Cools W, Oehme A, Lorenz A, Marx U, Goossens E, Maschmeyer I. A multi-organ-chip co-culture of liver and testis equivalents: a first step toward a systemic male reprotoxicity model. Hum Reprod 2021; 35:1029-1044. [PMID: 32390056 DOI: 10.1093/humrep/deaa057] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [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: 09/25/2019] [Revised: 01/30/2020] [Accepted: 03/09/2020] [Indexed: 12/15/2022] Open
Abstract
STUDY QUESTION Is it possible to co-culture and functionally link human liver and testis equivalents in the combined medium circuit of a multi-organ chip? SUMMARY ANSWER Multi-organ-chip co-cultures of human liver and testis equivalents were maintained at a steady-state for at least 1 week and the co-cultures reproduced specific natural and drug-induced liver-testis systemic interactions. WHAT IS KNOWN ALREADY Current benchtop reprotoxicity models typically do not include hepatic metabolism and interactions of the liver-testis axis. However, these are important to study the biotransformation of substances. STUDY DESIGN, SIZE, DURATION Testicular organoids derived from primary adult testicular cells and liver spheroids consisting of cultured HepaRG cells and hepatic stellate cells were loaded into separate culture compartments of each multi-organ-chip circuit for co-culture in liver spheroid-specific medium, testicular organoid-specific medium or a combined medium over a week. Additional multi-organ-chips (single) and well plates (static) were loaded only with testicular organoids or liver spheroids for comparison. Subsequently, the selected type of medium was supplemented with cyclophosphamide, an alkylating anti-neoplastic prodrug that has demonstrated germ cell toxicity after its bioactivation in the liver, and added to chip-based co-cultures to replicate a human liver-testis systemic interaction in vitro. Single chip-based testicular organoids were used as a control. Experiments were performed with three biological replicates unless otherwise stated. PARTICIPANTS/MATERIALS, SETTING, METHODS The metabolic activity was determined as glucose consumption and lactate production. The cell viability was measured as lactate dehydrogenase activity in the medium. Additionally, immunohistochemical and real-time quantitative PCR end-point analyses were performed for apoptosis, proliferation and cell-specific phenotypical and functional markers. The functionality of Sertoli and Leydig cells in testicular spheroids was specifically evaluated by measuring daily inhibin B and testosterone release, respectively. MAIN RESULTS AND THE ROLE OF CHANCE Co-culture in multi-organ chips with liver spheroid-specific medium better supported the metabolic activity of the cultured tissues compared to other media tested. The liver spheroids did not show significantly different behaviour during co-culture compared to that in single culture on multi-organ-chips. The testicular organoids also developed accordingly and produced higher inhibin B but lower testosterone levels than the static culture in plates with testicular organoid-specific medium. By comparison, testosterone secretion by testicular organoids cultured individually on multi-organ-chips reached a similar level as the static culture at Day 7. This suggests that the liver spheroids have metabolised the steroids in the co-cultures, a naturally occurring phenomenon. The addition of cyclophosphamide led to upregulation of specific cytochromes in liver spheroids and loss of germ cells in testicular organoids in the multi-organ-chip co-cultures but not in single-testis culture. LARGE-SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The number of biological replicates included in this study was relatively small due to the limited availability of individual donor testes and the labour-intensive nature of multi-organ-chip co-cultures. Moreover, testicular organoids and liver spheroids are miniaturised organ equivalents that capture key features, but are still simplified versions of the native tissues. Also, it should be noted that only the prodrug cyclophosphamide was administered. The final concentration of the active metabolite was not measured. WIDER IMPLICATIONS OF THE FINDINGS This co-culture model responds to the request of setting up a specific tool that enables the testing of candidate reprotoxic substances with the possibility of human biotransformation. It further allows the inclusion of other human tissue equivalents for chemical risk assessment on the systemic level. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by research grants from the Scientific Research Foundation Flanders (FWO), Universitair Ziekenhuis Brussel (scientific fund Willy Gepts) and the Vrije Universiteit Brussel. Y.B. is a postdoctoral fellow of the FWO. U.M. is founder, shareholder and CEO of TissUse GmbH, Berlin, Germany, a company commercializing the Multi-Organ-Chip platform systems used in the study. The other authors have no conflict of interest to declare.
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Affiliation(s)
- Y Baert
- Biology of the Testis (BITE) Research Group, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - I Ruetschle
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
| | - W Cools
- Interfaculty Center Data Processing and Statistics (ICDS), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - A Oehme
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
| | - A Lorenz
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
| | - U Marx
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
| | - E Goossens
- Biology of the Testis (BITE) Research Group, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - I Maschmeyer
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
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Roller-Wirnsberger R, Liotta G, Lindner S, Iaccarino G, De Luca V, Geurden B, Maggio M, Longobucco Y, Vollenbroek-Hutten M, Cano A, Carriazo AM, Goossens E, Cacciatore F, Triassi M, D'Amico M, Illario M. Public health and clinical approach to proactive management of frailty in multidimensional arena. Ann Ig 2021; 33:543-554. [PMID: 33565567 DOI: 10.7416/ai.2021.2426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background Demographic changes have forced communities and people themselves to reshape ageing concepts and approaches and try to develop actions towards active and healthy ageing. In this context, the European Commission launched different private-public partnerships to develop new solutions and answers on questions related to this topic. The European Innovation Partnership on Active and Healthy Ageing, including topic related action groups as well reference sites committed towards a common action to facilitate active and healthy ageing, has contributed key elements for interventions, scaled up best practices and evaluated impact of their action to drive innovation across many regions in Europe over the past years. Methods This paper describes action taken by A3 action group in the European Innovation Partnership on Active and Healthy Ageing. This paper gives an overview of how the partnership combined the view on frailty coming from public health as well as the clinical management. Results Within different European regions, to tackle frailty, EIPonAHA partners have conceptualized functional decline and frailty, making use of good practice models working well on community programs. The A3 Group of EIPonAHA has worked alongside a process of innovation, targeting all ageing citizens with the clear goal of involving communities in the preventive approach. Conclusion Engagement needs of older people with a focus on functionally rather than disease management as primary objective is considered as an overarching concept, also embracing adherence, compliance, empowerment, health literacy, shared decision-making, and activation. Furthermore, training of staff working with ageing people across all sectors needs to be implemented and evaluated in future studies.
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Affiliation(s)
| | - G Liotta
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - S Lindner
- Department of Internal Medicine, Medical University of Graz, Austria
| | - G Iaccarino
- Department of Advanced Biomedical Sciences, Federico II University, Napoli, Italy
| | - V De Luca
- Unit for Health Innovation, Campania Region Health Directorate, and Federico II University, Department of Public Health, Naples, Italy
| | - B Geurden
- Center for Research and Innovation in Care (CRIC), Faculty of Medicine and Health Sciences, University of Antwerp, Belgium.,Center for Gastrology, Leuven, Belgium
| | - M Maggio
- Department of Medicine and Surgery, University of Parma, Italy
| | - Y Longobucco
- Department of Medicine and Surgery, University of Parma, Italy
| | - M Vollenbroek-Hutten
- Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente, Enschede, The Netherlands
| | - A Cano
- Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, and INCLIVA, Valencia, Spain
| | - A M Carriazo
- Regional Ministry of Health and Families of Andalusia, Seville, Spain
| | | | - F Cacciatore
- Unit for Health Innovation, Campania Region Health Directorate, and Federico II University, Department of Public Health, Naples, Italy
| | - M Triassi
- Unit for Health Innovation, Campania Region Health Directorate, and Federico II University, Department of Public Health, Naples, Italy
| | - M D'Amico
- Specialization School of Hygiene and Preventive Medicine, Tor Vergata University, Rome, Italy
| | - M Illario
- Unit for Health Innovation, Campania Region Health Directorate, and Federico II University, Department of Public Health, Naples, Italy
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Ntemou E, Kadam P, Van Saen D, Wistuba J, Mitchell RT, Schlatt S, Goossens E. Complete spermatogenesis in intratesticular testis tissue xenotransplants from immature non-human primate. Hum Reprod 2020; 34:403-413. [PMID: 30753464 PMCID: PMC6389866 DOI: 10.1093/humrep/dey373] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 11/20/2018] [Accepted: 11/30/2018] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Can full spermatogenesis be achieved after xenotransplantation of prepubertal primate testis tissue to the mouse, in testis or subcutaneously? SUMMARY ANSWER Intratesticular xenotransplantation supported the differentiation of immature germ cells from marmoset (Callithrix jacchus) into spermatids and spermatozoa at 4 and 9 months post-transplantation, while in subcutaneous transplants, spermatogenic arrest was observed at 4 months and none of the transplants survived at 9 months. WHAT IS KNOWN ALREADY Auto-transplantation of cryopreserved immature testis tissue (ITT) could be a potential fertility restoration strategy for patients with complete loss of germ cells due to chemo- and/or radiotherapy at a young age. Before ITT transplantation can be used for clinical application, it is a prerequisite to demonstrate the feasibility of the technique and identify the conditions required for establishing spermatogenesis in primate ITT transplants. Although xenotransplantation of ITT from several species has resulted in complete spermatogenesis, in human and marmoset, ITT has not been successful. STUDY DESIGN, SIZE, DURATION In this study, we used marmoset as a pre-clinical animal model. ITT was obtained from two 6-month-old co-twin marmosets. A total of 147 testis tissue pieces (~0.8-1.0 mm3 each) were transplanted into the testicular parenchyma (intratesticular; n = 40) or under the dorsal skin (ectopic; n = 107) of 4-week-old immunodeficient Swiss Nu/Nu mice (n = 20). Each mouse received one single marmoset testis tissue piece in each testis and 4-6 pieces subcutaneously. Xenotransplants were retrieved at 4 and 9 months post-transplantation and evaluations were performed with regards to transplant survival, spermatogonial quantity and germ cell differentiation. PARTICIPANTS/MATERIALS, SETTING, METHODS Transplant survival was histologically evaluated by haematoxylin-periodic acid Schiff (H/PAS) staining. Spermatogonia were identified by MAGE-A4 via immunohistochemistry. Germ cell differentiation was assessed by morphological identification of different germ cell types on H/PAS stained sections. Meiotically active germ cells were identified by BOLL expression. CREM immunohistochemistry was performed to confirm the presence of post-meiotic germ cells and ACROSIN was used to determine the presence of round, elongating and elongated spermatids. MAIN RESULTS AND THE ROLE OF CHANCE Four months post-transplantation, 50% of the intratesticular transplants and 21% of the ectopic transplants were recovered (P = 0.019). The number of spermatogonia per tubule did not show any variation. In 33% of the recovered intratesticular transplants, complete spermatogenesis was established. Overall, 78% of the intratesticular transplants showed post-meiotic differentiation (round spermatids, elongating/elongated spermatids and spermatozoa). However, during the same period, spermatocytes (early meiotic germ cells) were the most advanced germ cell type present in the ectopic transplants. Nine months post-transplantation, 50% of the intratesticular transplants survived, whilst none of the ectopic transplants was recovered (P < 0.0001). Transplants contained more spermatogonia per tubule (P = 0.018) than at 4 months. Complete spermatogenesis was observed in all recovered transplants (100%), indicating a progressive spermatogenic development in intratesticular transplants between the two time-points. Nine months post-transplantation, transplants contained more seminiferous tubules with post-meiotic germ cells (37 vs. 5%; P < 0.001) and fewer tubules without germ cells (2 vs. 8%; P = 0.014) compared to 4 months post-transplantation. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Although xenotransplantation of marmoset ITT was successful, it does not fully reflect all aspects of a future clinical setting. Furthermore, due to ethical restrictions, we were not able to prove the functionality of the spermatozoa produced in the marmoset transplants. WIDER IMPLICATIONS OF THE FINDINGS In this pre-clinical study, we demonstrated that testicular parenchyma provides the required microenvironment for germ cell differentiation and long-term survival of immature marmoset testis tissue, likely due to the favourable temperature regulation, growth factors and hormonal support. These results encourage the design of new experiments on human ITT xenotransplantation and show that intratesticular transplantation is likely to be superior to ectopic transplantation for fertility restoration following gonadotoxic treatment in childhood. STUDY FUNDING/COMPETING INTEREST(S) This project was funded by the ITN Marie Curie Programme 'Growsperm' (EU-FP7-PEOPLE-2013-ITN 603568) and the scientific Fund Willy Gepts from the UZ Brussel (ADSI677). D.V.S. is a post-doctoral fellow of the Fonds Wetenschappelijk Onderzoek (FWO; 12M2815N). No conflict of interest is declared.
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Affiliation(s)
- E Ntemou
- Biology of the Testis Lab, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - P Kadam
- Biology of the Testis Lab, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - D Van Saen
- Biology of the Testis Lab, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - J Wistuba
- Centre of Reproductive Medicine and Andrology (CeRA), University of Münster, Münster, Germany
| | - R T Mitchell
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, Edinburgh, Scotland, UK.,Edinburgh Royal Hospital for Sick Children, Edinburgh, Scotland, UK
| | - S Schlatt
- Centre of Reproductive Medicine and Andrology (CeRA), University of Münster, Münster, Germany
| | - E Goossens
- Biology of the Testis Lab, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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20
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Goossens E, Jahnukainen K, Mitchell RT, van Pelt A, Pennings G, Rives N, Poels J, Wyns C, Lane S, Rodriguez-Wallberg KA, Rives A, Valli-Pulaski H, Steimer S, Kliesch S, Braye A, Andres MM, Medrano J, Ramos L, Kristensen SG, Andersen CY, Bjarnason R, Orwig KE, Neuhaus N, Stukenborg JB. Fertility preservation in boys: recent developments and new insights †. Hum Reprod Open 2020; 2020:hoaa016. [PMID: 32529047 PMCID: PMC7275639 DOI: 10.1093/hropen/hoaa016] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 01/22/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Infertility is an important side effect of treatments used for cancer and other non-malignant conditions in males. This may be due to the loss of spermatogonial stem cells (SSCs) and/or altered functionality of testicular somatic cells (e.g. Sertoli cells, Leydig cells). Whereas sperm cryopreservation is the first-line procedure to preserve fertility in post-pubertal males, this option does not exist for prepubertal boys. For patients unable to produce sperm and at high risk of losing their fertility, testicular tissue freezing is now proposed as an alternative experimental option to safeguard their fertility. OBJECTIVE AND RATIONALE With this review, we aim to provide an update on clinical practices and experimental methods, as well as to describe patient management inclusion strategies used to preserve and restore the fertility of prepubertal boys at high risk of fertility loss. SEARCH METHODS Based on the expertise of the participating centres and a literature search of the progress in clinical practices, patient management strategies and experimental methods used to preserve and restore the fertility of prepubertal boys at high risk of fertility loss were identified. In addition, a survey was conducted amongst European and North American centres/networks that have published papers on their testicular tissue banking activity. OUTCOMES Since the first publication on murine SSC transplantation in 1994, remarkable progress has been made towards clinical application: cryopreservation protocols for testicular tissue have been developed in animal models and are now offered to patients in clinics as a still experimental procedure. Transplantation methods have been adapted for human testis, and the efficiency and safety of the technique are being evaluated in mouse and primate models. However, important practical, medical and ethical issues must be resolved before fertility restoration can be applied in the clinic.Since the previous survey conducted in 2012, the implementation of testicular tissue cryopreservation as a means to preserve the fertility of prepubertal boys has increased. Data have been collected from 24 co-ordinating centres worldwide, which are actively offering testis tissue cryobanking to safeguard the future fertility of boys. More than 1033 young patients (age range 3 months to 18 years) have already undergone testicular tissue retrieval and storage for fertility preservation. LIMITATIONS REASONS FOR CAUTION The review does not include the data of all reproductive centres worldwide. Other centres might be offering testicular tissue cryopreservation. Therefore, the numbers might be not representative for the entire field in reproductive medicine and biology worldwide. The key ethical issue regarding fertility preservation in prepubertal boys remains the experimental nature of the intervention. WIDER IMPLICATIONS The revised procedures can be implemented by the multi-disciplinary teams offering and/or developing treatment strategies to preserve the fertility of prepubertal boys who have a high risk of fertility loss. STUDY FUNDING/COMPETING INTERESTS The work was funded by ESHRE. None of the authors has a conflict of interest.
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Affiliation(s)
- E Goossens
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
| | - K Jahnukainen
- NORDFERTIL Research Lab Stockholm, Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet and Karolinska University Hospital, Solna, Sweden.,Division of Haematology-Oncology and Stem Cell Transplantation, New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - R T Mitchell
- MRC Centre for Reproductive Health, The Queen's Medical Research Institute, The University of Edinburgh; and the Edinburgh Royal Hospital for Sick Children, Edinburgh, UK
| | - Amm van Pelt
- Center for Reproductive Medicine, Amsterdam UMC, Amsterdam Reproduction and Development Research Institute, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - G Pennings
- Bioethics Institute Ghent, Ghent University, 9000 Ghent, Belgium
| | - N Rives
- Normandie Univ, UNIROUEN, EA 4308 "Gametogenesis and Gamete Quality", Rouen University Hospital, Biology of Reproduction-CECOS Laboratory, F 76000, Rouen, France
| | - J Poels
- Department of Gynecology and Andrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - C Wyns
- Department of Gynecology and Andrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - S Lane
- Department of Paediatric Oncology and Haematology, Children's Hospital Oxford, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - K A Rodriguez-Wallberg
- Department of Oncology Pathology, Karolinska Institutet, Solna, Sweden.,Section of Reproductive Medicine, Division of Gynecology and Reproduction, Karolinska University Hospital, Stockholm, Sweden
| | - A Rives
- Normandie Univ, UNIROUEN, EA 4308 "Gametogenesis and Gamete Quality", Rouen University Hospital, Biology of Reproduction-CECOS Laboratory, F 76000, Rouen, France
| | - H Valli-Pulaski
- Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - S Steimer
- Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - S Kliesch
- Centre of Reproductive Medicine and Andrology, Institute of Reproductive and Regenerative Biology, University of Münster, Münster, Germany
| | - A Braye
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
| | - M M Andres
- Reproductive Medicine Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - J Medrano
- Reproductive Medicine Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - L Ramos
- Departement of Obstetrics and Gynacology, Division Reproductive Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - S G Kristensen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Denmark
| | - C Y Andersen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Denmark
| | - R Bjarnason
- Children's Medical Center, Landspítali University Hospital, Reykjavik, Iceland and Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - K E Orwig
- Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - N Neuhaus
- Centre of Reproductive Medicine and Andrology, Institute of Reproductive and Regenerative Biology, University of Münster, Münster, Germany
| | - J B Stukenborg
- NORDFERTIL Research Lab Stockholm, Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet and Karolinska University Hospital, Solna, Sweden
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Goossens E, Dierick E, Ducatelle R, Van Immerseel F. Spotlight on avian pathology: untangling contradictory disease descriptions of necrotic enteritis and necro-haemorrhagic enteritis in broilers. Avian Pathol 2020; 49:423-427. [PMID: 32208870 DOI: 10.1080/03079457.2020.1747593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Necrotic enteritis (NE) is one of the most detrimental infectious diseases in the modern poultry industry, characterized by necrosis in the small intestine. It is commonly accepted that NetB-producing C. perfringens type G strains are responsible for the disease. However, based on both macroscopic and histopathological observations, two distinct types of NE are observed. To date, both a haemorrhagic form of NE and the type G-associated non-haemorrhagic disease entity are commonly referred to as NE and the results from scientific research are interchangeably used, without distinguishing between the disease entities. Therefore, we propose to rename the haemorrhagic disease entity to necro-haemorrhagic enteritis.
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Affiliation(s)
- E Goossens
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - E Dierick
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - R Ducatelle
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - F Van Immerseel
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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Abstract
Over the past 50 years, intentional genetic selection within the broiler industry has led to major improvements in both body weight gain (BWG) and feed conversion efficiency. Next to its economic advantages, enhancing BWG can increase the risk of metabolic and skeletal disorders. The aim of this study was to examine whether higher BWG is a predisposing factor for broiler necrotic enteritis. In this study, 300 broilers were challenged with Clostridium perfringens using a well-established, previously described challenge model. It was found that birds with higher body weight (BW) and BWG before challenge were predisposed to develop more severe necrotic enteritis lesions. After challenge, the average BWG of the birds developing mild to severe lesions dropped significantly, negatively affecting bird welfare and performance. These results show a significant interplay between BWG and the development of necrotic enteritis lesions. This raises the question whether there is a limit to broiler performance with respect to maintaining intestinal health, and whether decreasing BWG (at certain stages of the growth cycle) can be part of a plan to prevent intestinal pathology. RESEARCH HIGHLIGHTS Higher body weight is a predisposing factor to necrotic enteritis in broilers.
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Affiliation(s)
- E Dierick
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University , Merelbeke , Belgium
| | - O P Hirvonen
- Faculty of Sport and Health Sciences, University of Jyväskylä , Jyväskylä , Finland
| | - F Haesebrouck
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University , Merelbeke , Belgium
| | - R Ducatelle
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University , Merelbeke , Belgium
| | - F Van Immerseel
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University , Merelbeke , Belgium
| | - E Goossens
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University , Merelbeke , Belgium
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Van Saen D, Vloeberghs V, Gies I, Mateizel I, Sermon K, De Schepper J, Tournaye H, Goossens E. When does germ cell loss and fibrosis occur in patients with Klinefelter syndrome? Hum Reprod 2019; 33:1009-1022. [PMID: 29684126 DOI: 10.1093/humrep/dey094] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 03/29/2018] [Indexed: 12/22/2022] Open
Abstract
STUDY QUESTION When does germ cell loss and fibrosis occur in patients with Klinefelter syndrome (KS)? SUMMARY ANSWER In KS, germ cell loss is not observed in testicular tissue from fetuses in the second semester of pregnancy but present at a prepubertal age when the testicular architecture is still normal, while fibrosis is highly present at an adolescent age. WHAT IS KNOWN ALREADY Most KS patients are azoospermic at adult age because of a massive germ cell loss. However, the timing when this germ cell loss starts is not known. It is assumed that germ cell loss increases at puberty. Therefore, testicular sperm extraction (TESE) at an adolescent age has been suggested to increase the chances of sperm retrieval at onset of spermatogenesis. However, recent data indicate that testicular biopsies from peripubertal KS patients contain only a few germ cells. STUDY DESIGN, SIZE, DURATION In this study, we give an update on fertility preservation in adolescent KS patients and evaluate whether fertility preservation would be beneficial at prepubertal age. The possibility of retrieving testicular spermatozoa by TESE was evaluated in adolescent and adult KS men. The presence of spermatogonia and the degree of fibrosis were also analysed in testicular biopsies from KS patients at different ages. The patients were divided into four age groups: foetal (n = 5), prepubertal (aged 4-7 years; n = 4), peripubertal (aged 12-16 years; n = 20) and adult (aged 18-41 years; n = 27) KS patients. PARTICIPANTS/MATERIALS, SETTING, METHODS In peripubertal and adult KS patients, retrieval of spermatozoa was attempted by semen analysis after masturbation, vibrostimulation, electroejaculation or by TESE. MAGE-A4 immunohistochemistry was performed to evaluate the presence of germ cells in testicular biopsies from foetal, prepubertal, peripubertal and adult KS patients. Tissue morphology was evaluated by haematoxylin-periodic acid Schiff (H/PAS) staining. MAIN RESULTS AND THE ROLE OF CHANCE Testicular spermatozoa were collected by TESE in 48.1% of the adult KS patients, while spermatozoa were recovered after TESE in only one peripubertal patient (5.0%). Germ cells were detectable in testicular biopsies from 21% of adult men for whom no spermatozoa could be retrieved by TESE and in 31.5% of peripubertal KS boys. Very small numbers of spermatogonia (0.03-0.06 spermatogonia/tubule) were detected in three out of four (75%) prepubertal patients. At a foetal age, the number of germ cells was similar for KS and control samples. Increased signs of fibrosis were not present at foetal and prepubertal ages, but peripubertal and adult KS patients showed high levels of fibrosis. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Only four prepubertal biopsies were included in this study, but they all showed a very low germ cell number. A high variability in the number of spermatogonia per mm2 was observed in the limited (n = 5) number of foetal biopsies. However, testicular biopsies from prepubertal and foetal Klinefelter patients are difficult to obtain. WIDER IMPLICATIONS OF THE FINDINGS Testicular tissue banking at a prepubertal age has been suggested as a potential method for fertility preservation in early diagnosed KS boys. However, our results show that a reduction in germ cell number has already taken place in childhood. Therefore, offering testicular tissue banking in young KS boys to prevent subsequent sterility might be a questionable strategy. However, this should be confirmed in a larger study population. STUDY FUNDING/COMPETING INTEREST(S) This project was funded by the scientific Fund Willy Gepts from the UZ Brussel (D.V.S., J.D.S.), grants from the Vrije Universiteit Brussel (E.G.) and a Methusalem grant (K.S.). D.V.S is a post-doctoral fellow of the Fonds Wetenschappelijk Onderzoek (FWO; 12M2815N). No conflict of interest is declared.
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Affiliation(s)
- D Van Saen
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - V Vloeberghs
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - I Gies
- Department of Pediatrics, Division of Pediatric Endocrinology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - I Mateizel
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - K Sermon
- Reproduction and Genetics, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Jean De Schepper
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium.,Department of Pediatrics, Division of Pediatric Endocrinology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium.,Pediatric Endocrinology, Universitair Ziekenhuis Gent, Gent, De Pintelaan 185, B-9000 Gent, Belgium
| | - H Tournaye
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium.,Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - E Goossens
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
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Bousquet J, Illario M, Farrell J, Batey N, Carriazo AM, Malva J, Hajjam J, Colgan E, Guldemond N, Perälä-Heape M, Onorato GL, Bedbrook A, Leonardini L, Stroetman V, Birov S, Abreu C, Abrunhosa A, Agrimi A, Alalääkkölä T, Allegretti N, Alonso-Trujillo F, Álvarez-Benito M, Angioli S, Apóstolo J, Armitage G, Arnavielhe S, Baena-ParejoI M, Bamidis PD, Balenović A, Barbolini M, Baroni I, Blain H, Bernard PL, Bersani M, Berti E, Bogatyrchuk L, Bourret R, Brehm J, Brussino L, Buhr D, Bultje D, Cabeza E, Cano A, De Capitani C, Carantoña E, Cardoso A, Coll Clavero JI, Combe B, Conforti D, Coppola L, Corti F, Coscioni E, Costa E, Crooks G, Cunha A, Daien C, Dantas, Darpón Sierra J, Davoli M, Dedeu Baraldes A, De Luca V, De Nardi L, Di Ciano M, Dozet A, Ekinci B, Erve S, Espinoza Almendro JM, Fait A, Fensli R, Fernandez Nocelo S, Gálvez-Daza P, Gámez-Payá J, García Sáez M, Garcia Sanchez I, Gemicioğlu B, Goetzke W, Goossens E, Geurdens M, Gütter Z, Hansen H, Hartman S, Hegendörfer G, Heikka H, Henderson D, Héran D, Hirvonen S, Iaccarino G, Jansson N, Kallasvaara H, Kalyoncu F, Kirchmayer U, Kokko JA, Korpelainen J, Kostka T, Kuna P, Lajarín Ortega T, Lama CM, Laune D, Lauri D, Ledroit V, Levato G, Lewis L, Liotta G, Lundgren L, Lupiañez-Villanueva F, Mc Garry P, Maggio M, Manuel de Keenoy E, Martinez C, Martínez-Domene M, Martínez-Lozano Aranaga B, Massimilliano M, Maurizio A, Mayora O, Melle C, Mendez-Zorilla A, Mengon H, Mercier G, Mercier J, Meyer I, Millet Pi-Figueras A, Mitsias P, Molloy DW, Monti R, Moro ML, Muranko H, Nalin M, Nobili A, Noguès M, O’Caoimh R, Pais S, Papini D, Parkkila P, Pattichis C, Pavlickova A, Peiponen A, Pereira S, Pépin JL, Piera Jiménez J, Portheine P, Potel L, Pozzi AC, Quiñonez P, Ramirez Lauritsen X, Ramos MJ, Rännäli-Kontturi A, Risino A, Robalo-Cordeiro C, Rolla G, Roller R, Romano M, Romano V, Ruiz-Fernández J, Saccavini C, Sachinopoulou A, Sánchez Rubio MJ, Santos L, Scalvini S, Scopetani E, Smedberg D, Solana-Lara R, Sołtysik B, Sorlini M, Stericker S, Stramba Badiale M, Taillieu I, Tervahauta M, Teixeira A, Tikanmäki H, Todo-Bom A, Tooley A, Tuulonen A, Tziraki C, Ussai S, Van der Veen S, Venchiarutti A, Verdoy-Berastegi D, Verissimo M, Visconti L, Vollenbroek-Hutten M, Weinzerl K, Wozniak L, Yorgancıoğlu A, Zavagli V, Zurkuhlen AJ. The Reference Site Collaborative Network of the European Innovation Partnership on Active and Healthy Ageing. Transl Med UniSa 2019; 19:66-81. [PMID: 31360670 PMCID: PMC6581486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Seventy four Reference Sites of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA) have been recognised by the European Commission in 2016 for their commitment to excellence in investing and scaling up innovative solutions for active and healthy ageing. The Reference Site Collaborative Network (RSCN) brings together the EIP on AHA Reference Sites awarded by the European Commission, and Candidate Reference Sites into a single forum. The overarching goals are to promote cooperation, share and transfer good practice and solutions in the development and scaling up of health and care strategies, policies and service delivery models, while at the same time supporting the action groups in their work. The RSCN aspires to be recognized by the EU Commission as the principal forum and authority representing all EIP on AHA Reference Sites. The RSCN will contribute to achieve the goals of the EIP on AHA by improving health and care outcomes for citizens across Europe, and the development of sustainable economic growth and the creation of jobs.
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Affiliation(s)
- J Bousquet
- MACVIA-France, Fondation partenariale FMC VIA-LR, Montpellier, France,VIMA, INSERM U 1168, VIMA : Ageing and chronic diseases. Epidemiological and public health approaches, Villejuif, Université Versailles St-Quentin-en-Yvelines, UMR-S 1168, Montigny le Bretonneux, France, Euforea, Brussels, Belgium, and Charité, Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Comprehensive Allergy Center, Department of Dermatology and Allergy, Berlin, Germany
| | - M Illario
- Division for Health Innovation, Campania Region and Federico II University Hospital Naples (R&D and DISMET) Naples, Italy
| | - J Farrell
- LANUA International Healthcare Consultancy, Down, UK
| | - N Batey
- EIPonAHA Reference Site Collaborative network, Head of EU & International Funding, Health and Social Services Group, Welsh Government, Cardiff, UK
| | - AM Carriazo
- Regional Ministry of Health of Andalusia, Seville, Spain
| | - J Malva
- Institute of Biomedical Imaging and Life Sciences (IBILI), Faculty of Medicine, University of Coimbra; Coimbra, and Ageing@Coimbra EIP-AHA Reference Site, Coimbra, Portugal
| | - J Hajjam
- CENTICH Mutualité Française Anjou Mayenne, Angers, France
| | - E Colgan
- Department of Health, Social Services and Public Safety, Northern Ireland Belfast, UK
| | - N Guldemond
- Institute of Health Policy and Management iBMG, Erasmus University, Rotterdam, The Netherlands
| | | | - GL Onorato
- MACVIA-France, Fondation partenariale FMC VIA-LR, Montpellier, France
| | - A Bedbrook
- MACVIA-France, Fondation partenariale FMC VIA-LR, Montpellier, France
| | - L Leonardini
- Veneto Region, Mattone Internazionale Program, Italy
| | - V Stroetman
- Empirica Communication and Technology Research, Bonn, Germany
| | - S Birov
- Empirica Communication and Technology Research, Bonn, Germany
| | - C Abreu
- Nursing School of Coimbra, Ageing@Coimbra, Coimbra, Portugal
| | - A Abrunhosa
- Comissão de Coordenação e Desenvolvimento Regional do Centro (CCDRC), Ageing@Coimbra EIP-AHA Reference Site, Coimbra, Portugal
| | - A Agrimi
- Aprulia Region - Research, Innovation and Capacity Building department, Bari – Italy
| | | | | | - F Alonso-Trujillo
- Agency for Social Services and Dependency of Andalusia, Seville, Spain
| | | | - S Angioli
- Campania Councillor for European Funds, Euromediterranean Basin and Youth Policies, Naples, Italy
| | - J Apóstolo
- Nursing School of Coimbra, Ageing@Coimbra, Coimbra, Portugal
| | - G Armitage
- Newcastle University, Operations Director, National Innovation Centre for Ageing, New Castle, UK
| | | | | | - PD Bamidis
- Medical Education Informatics; Lab of Medical Physics; Medical School; Aristotle University of Thessaloniki, Greece
| | - A Balenović
- Health Care Center Zagreb, City of Zagreb, AHA Reference site, Zagreb, Croatia
| | - M Barbolini
- Regione Emilia Romagna - Agenzia Sanitaria e Sociale, Regional Health and Social Agency Emilia-Romagna, Reference Site of the European Innovation Partnership on Healthy and Active Ageing, Bologna, Italy, and EU Commission Senior Public Health Expert
| | | | - H Blain
- Department of Geriatrics, Montpellier University Hospital, Montpellier, France,EUROMOV. EA 2991, Euromov, University of Montpellier, France
| | - PL Bernard
- Sport Faculty, University of Montpellier, France
| | - M Bersani
- Head Unit Plans and Projects; DG Welfare – Region of Lombardy, Milano (Italy)
| | - E Berti
- Regional Health and Social Agency Emilia-Romagna, Bologna, Italy
| | - L Bogatyrchuk
- The medical improving center “Elbrus”, Zhytomir, Ukraine
| | - R Bourret
- Centre Hospitalier Valenciennes, France
| | - J Brehm
- Health region CologneBonn, Köln, Germany
| | - L Brussino
- Department of Medical Sciences, Allergy and Clinical Immunology Unit, University of Torino & Mauriziano Hospital, Torino, Italy
| | - D Buhr
- University of Tuebingen / Steinbeis Transfercenter for Social and Technological Innovation, Tuebingen, Germany
| | - D Bultje
- Healthy Ageing Network Northern Netherlands, Groningen, The Netherlands
| | - E Cabeza
- Cap de Servei de Promoció de la Salut, Direcció General de Salut Pública i Participació, Palma de Mallorca, Spain
| | - A Cano
- Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, Spain,INCLIVA, Valencia, Spain
| | - C De Capitani
- Lombardy Cluster Technologies for Living Environments, Lecco (LC), Italy
| | - E Carantoña
- Consejería de Presidencia y Participación Ciudadana, Oviedo, Spain
| | - A Cardoso
- Nursing School of Coimbra, Ageing@Coimbra, Coimbra, Portugal
| | - JI Coll Clavero
- Innovation and new technologies, Hospital de Barbastro Servicio Aragones de Salud Aragon, Spain
| | - B Combe
- Department of Rheumotology, University Hospital, Montpellier, France
| | - D Conforti
- Autonomous Province of Trento, Health and Social Solidarity Department & TrentinoSalute4.0, Trento, Italy
| | - L Coppola
- Head Unit Health Promotion and Screening; DG Welfare – Region of Lombardy, Milan, Italy
| | - F Corti
- FIMMG, Federazione Italiana Medici di Medicina Generale, Milan, Italy
| | - E Coscioni
- Department of Heart Surgery, San Giovanni di Dio e Ruggi d’Aragona Hospital, Salerno, Italy
| | - E Costa
- UCIBIO, REQUIMTE, Faculty of Pharmacy of University of Porto, Porto4ageing Reference Site, University of Porto, PORTO, Portugal
| | - G Crooks
- Scottish Centre for Telehealth and Telecare, NHS 24, Glasgow, UK
| | - A Cunha
- Instituto Pedro Nunes, Ageing@Coimbra EIP-AHA Reference Site, Coimbra, Portugal
| | - C Daien
- Department of Rheumotology, University Hospital, Montpellier, France
| | - Dantas
- Cáritas Diocesana de Coimbra, Ageing@Coimbra EIP-AHA Reference Site, Coimbra, Portugal
| | | | - M Davoli
- Department of Epidemiology, ASL Roma 1, Lazio Regional Health Service, Roma, Italy
| | - A Dedeu Baraldes
- Agency for Health Quality & Assessment of Catalonia of the Ministry of Health of Catalonia – AquAs, Barcelona, Spain
| | - V De Luca
- R&D Unit, Federico II University Hospital, Naples, Italy
| | - L De Nardi
- Health Information System International Projects, Lombardia Informatica SpA, Milano, Italy
| | - M Di Ciano
- InnovaPuglia - Inhouse ICT company of Regione Puglia and Reference Site Puglia WI-FI Management, Bari, Italy
| | - A Dozet
- Health economist, Region Skåne, Sweden
| | - B Ekinci
- Head Chronic Disease Department, Ministry of Health, Ankara, Turkey
| | - S Erve
- CENTICH Mutualité Française Anjou Mayenne, Angers, France
| | | | - A Fait
- Health and Social Care Directorate, ATS Città Metropolitana (Health and Social Care Agency), Milano, Italy
| | - R Fensli
- Centre of eHealth and Health Care Technology, University of Agder, Faculty of Engineering and Science, Grimstad, Norway
| | - S Fernandez Nocelo
- Galician Health Knowledge Agency (ACIS), Regional Ministry of Public Health of Galicia
| | - P Gálvez-Daza
- Regional Ministry of Equality and Social Policies of Andalusia, Seville, Spain
| | | | - M García Sáez
- Agency for Social Services and Dependency of Andalusia, Seville, Spain
| | | | - B Gemicioğlu
- Department of Pulmonary Diseases, Istanbul University-Cerrahpasa, Cerrahpasa Faculty of Medicine, Istanbul, Turkey
| | - W Goetzke
- Health region CologneBonn, Köln, Germany
| | - E Goossens
- Center for Gastrology, School of Gastrologic Sciences and Primary Food Care, Leuven, Belgium
| | - M Geurdens
- Center of Expertise in Primary Food Care, Center for Research and Innovation in Care (CRIC), Antwerp, Belgium
| | - Z Gütter
- University Hospital Olomouc - NTMC, National eHealth Centre, Olomouc, Czech Republic
| | - H Hansen
- EU Consultant & Project Manager, South Denmark European Office, Brussels, Belgium
| | - S Hartman
- Department of Social Services and Health Care, Business Development, HELSINGIN KAUPUNKI, City of Helsinki, Finland
| | | | | | - D Henderson
- Head of European Engagement, NHS 24, Glasgow, UK
| | | | | | - G Iaccarino
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - N Jansson
- Network Ecosystem, BusinessOulu, Oulu, Finland
| | - H Kallasvaara
- Helsinki-Uusimaa Regional Council, Helsinki, Finland
| | - F Kalyoncu
- Hacettepe University, School of Medicine, Department of Chest Diseases, Immunology and Allergy Division, Ankara, Turkey
| | - U Kirchmayer
- Department of Epidemiology, ASL Roma 1, Lazio Regional Health Service, Roma, Italy
| | - JA Kokko
- Department of Healthcare and Social Welfare, Technology Specialist, Oulu, Finland
| | - J Korpelainen
- Oulu University Hospital OYS, Hospital District, Oulu, Finland
| | - T Kostka
- Department of Geriatrics, Medical University of Lodz, Healthy Ageing Research Centre (HARC), Lodz, Poland
| | - P Kuna
- Division of Internal Medicine, Asthma and Allergy, Barlicki University Hospital, Medical University of Lodz, Poland
| | - T Lajarín Ortega
- Committee of Representatives of People with disabilities and their Families, Region de Murcia, Spain
| | - CM Lama
- Regional Ministry of Health of Andalusia, Seville, Spain
| | | | | | - V Ledroit
- Alsace Lorraine Champagne Ardenne, Bureau Europe Grand Est, Bruxelles, Belgique
| | - G Levato
- SIFMED, Scuola Italiana Di Formazione E Ricerca In Medicina Di Famiglia, Milan, Italy
| | - L Lewis
- Head of Research and Development, International Foundation for Integrated Care and EIP on AHA B3 Action Group Chair, Wolfson College, Oxford, UK
| | - G Liotta
- Biomedicine and Prevention Department, University of Rome Tor Vergata, Rome, Italy
| | - L Lundgren
- Development Department, Region Norrbotten, Sweden
| | | | - P Mc Garry
- Greater Manchester Ageing Hub, Greater Manchester Combined Authority, Manchester, UK
| | - M Maggio
- Department of Medicine and Surgery - Geriatric Clinic Unit Department of Medicine Geriatric Rehabilitation, University Hospital of Parma, Italy
| | - E Manuel de Keenoy
- Kronikgune, International Centre of Excellence in Chronicity Research, Barakaldo, Bizkaia, Spain
| | - C Martinez
- Costa Cálida Cares-Senior Tourism and Services, Region de Murcia, Spain
| | - M Martínez-Domene
- Regional Ministry of Equality and Social Policies of Andalusia, Seville, Spain
| | | | - M Massimilliano
- Financial Range for Innovation, Research, International care and health sector; Friuli Venezia Giulia Autonomous Region, Central Directorate for Health, Social Health Integration, Social Policies and Family, Trieste, Italy
| | - A Maurizio
- Plans and Projects Unit, DG Welfare – Region of Lombardy, Italy
| | - O Mayora
- Bruno Kessler Foundation, eHealth Unit and TrentinoSalute4.0, Trento, Italy
| | - C Melle
- Care Management Unit, Hausach, Gesundes Kinzigtal GmbH, Kizingtal, Germany
| | | | - H Mengon
- Autonomous Province of Trento, Health and Social Solidarity Department & TrentinoSalute4.0, Trento, Italy
| | - G Mercier
- Unité Médico-Economie, Département de l’Information Médicale, University Hospital, Montpellier, France
| | - J Mercier
- Department of Physiology, CHRU, University Montpellier, PhyMedExp, INSERM U1046, CNRS UMR 9214, France
| | - I Meyer
- Care Management Unit, Hausach, Gesundes Kinzigtal GmbH, Kizingtal, Germany
| | | | - P Mitsias
- Department of Neurology, School of Medicine, University of Crete, Heraklion, Crete, Greece
| | - DW Molloy
- Centre for Gerontology and Rehabilitation, School of Medicine, UCC @ St Finbarr’s Hospital, Cork, Ireland
| | - R Monti
- Department of Medical Sciences, Allergy and Clinical Immunology Unit, University of Torino & Mauriziano Hospital, Torino, Italy
| | - ML Moro
- Regional Health and Social Agency Emilia-Romagna, Bologna, Italy
| | - H Muranko
- GEWI Institute, Regional Innovation Partnership on Active and Healthy Ageing, Köln, Germany
| | | | - A Nobili
- Mario Negri Institute for Pharmacological Research, IRCCS; Clinical Pharmacology, Geriatrics, Internal Medicine, Milano, Italy
| | | | - R O’Caoimh
- Centre for Gerontology and Rehabilitation, School of Medicine, UCC @ St Finbarr’s Hospital, Cork, Ireland,Health Research Board, Clinical Research Facility Galway, National University of Ireland, Galway, Ireland
| | - S Pais
- Center for Biomedical Research-CBMR, Department of Biomedical Sciences and Medicine, International Center on Ageing-CENIE, University of Algarve, Portugal
| | - D Papini
- Regional Health and Social Agency Emilia-Romagna, Bologna, Italy
| | - P Parkkila
- Oulu University Hospital OYS, Hospital District, Oulu, Finland
| | - C Pattichis
- Dept of Computer Science, University of Cyprus, Cyprus, Greece
| | - A Pavlickova
- European Service Development Manager, NHS 24, Glasgow, UK
| | - A Peiponen
- Social services and health care division, Hospital, rehabilitation and care services, Southern service district, City of Helsinki, FINLAND
| | - S Pereira
- University of Porto and Porto4Ageing Reference Site, Porto, Portugal
| | - JL Pépin
- Université Grenoble Alpes, Laboratoire HP2, Grenoble, INSERM, U1042 and CHU de Grenoble, France
| | - J Piera Jiménez
- Information and R&D Officer, Badalona Serveis Assistencials, Badalona, Spain
| | - P Portheine
- Coöperatie Slimmer Leven, Eindhoven, The Netherlands
| | - L Potel
- International Affairs & Public Procurement of Innovation, Hospital Procurement Network, Paris, France
| | - AC Pozzi
- IML, Lombardy Medical Initiative, Bergamo, Italy
| | - P Quiñonez
- Agency for Social Services and Dependency of Andalusia, Seville, Spain,Regional Ministry of Equality and Social Policies of Andalusia, Seville, Spain
| | | | - MJ Ramos
- UCIBIO, REQUIMTE, Faculty of Sciences of University of Porto and Porto4Ageing Reference Site, Porto, Portugal
| | | | - A Risino
- Health Innovation Manchester, Manchester, UK
| | - C Robalo-Cordeiro
- Faculty of Medicine, University of Coimbra, Portugal, Ageing@Coimbra EIP-AHA Reference Site
| | - G Rolla
- Department of Medical Sciences, Allergy and Clinical Immunology Unit, University of Torino & Mauriziano Hospital, Torino, Italy
| | - R Roller
- Medical University of Graz, Department of Internal Medicine, Graz, Austria
| | | | - V Romano
- IRES - Institute for Economic and Social Research - Piedmont, Torino, Italy
| | | | - C Saccavini
- Arsenàl.IT, Veneto’s Research Centre for eHealth Innovation, Venice, Italy
| | - A Sachinopoulou
- Oulu University, Center of Health and Technology, Oulu, Finland
| | - MJ Sánchez Rubio
- Regional Ministry of Equality and Social Policies of Andalusia, Seville, Spain
| | - L Santos
- Odem dos Farmacêuticos, Secção Regional do Centro, Ageing@Coimbra EIP-AHA Reference Site, Coimbra, Portugal
| | - S Scalvini
- Cardiology Rehabilitation Division, Salvatore Maugeri Foundation IRCCS, Institute of Lumezzane, Brescia, Italy
| | - E Scopetani
- Tuscany Region, Directorate Citizenship rights and social cohesion, Firenze, Italy
| | - D Smedberg
- RISE Research Institutes of Sweden, Division Safety and Transport - Measurement Science and Technology, Lund, Sweden
| | - R Solana-Lara
- Regional Ministry of Health of Andalusia, Seville, Spain
| | - B Sołtysik
- Department of Geriatrics, Medical University of Lodz, Healthy Ageing Research Centre (HARC), Lodz, Poland
| | - M Sorlini
- International Affairs & Public Procurement of Innovation, Hospital Procurement Network, Paris, France
| | - S Stericker
- Head of Programmes, Yorkshire & Humber Academic Health Science Network, Wakefield, UK
| | - M Stramba Badiale
- Department of Geriatrics and Cardiovascular Medicine, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - I Taillieu
- Coördinator Zorgeconomie, Fabrieken voor de Toekomst, Brugge, Belgium
| | | | - A Teixeira
- Faculty of Sport Sciences and Physical Education, University of Coimbra, Ageing@Coimbra EIP-AHA Reference Site, Portugal
| | - H Tikanmäki
- Life Science Industries and Company Networks, BusinessOulu, Oulu, Finland
| | - A Todo-Bom
- Faculty of Medicine, University of Coimbra, Portugal, Ageing@Coimbra EIP-AHA Reference Site
| | - A Tooley
- University of Porto and Porto4Ageing Reference Site, Porto, Portugal
| | - A Tuulonen
- Tays Eye Centre, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland
| | - C Tziraki
- Research and Evaluation Department, Municipality of Jérusalem, Israël,Medicine and Health Care Science, Allilegi Community Based Organization for AD and Active Healthy Aging, Heraklion, Crete, Heraklion-Crete Reference Site Region, Greece
| | - S Ussai
- DG Welfare, Lombardy Region, Italy
| | - S Van der Veen
- Department of Med Hum, Amsterdam University Medical Centers, VU University, NL
| | - A Venchiarutti
- Friuli Venezia Giulia Autonomous Region, Central Directorate for Health, Social Health Integration, Social Policies and Family, Trieste, Italy
| | - D Verdoy-Berastegi
- Kronikgune, International Centre of Excellence in Chronicity Research, Barakaldo, Bizkaia, Spain
| | - M Verissimo
- Faculty of Medicine, University of Coimbra, Portugal, Ageing@Coimbra EIP-AHA Reference Site
| | - L Visconti
- LifeTechValley, Life Sciences Incubator BioVille, Diepenbeek, Belgium
| | - M Vollenbroek-Hutten
- University of Twente, Biomedical systems and signal group/telemedicine, Twente, The Netherlands
| | - K Weinzerl
- Human.technology Styria GmbH, Graz, Austria
| | - L Wozniak
- Research and International Relations, Department of Structural Biology, Medical University of Lodz, Lodz, Poland
| | - A Yorgancıoğlu
- Celal Bayar University, School of Medicine, Department of Pulmonology, Manisa, Turkey
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25
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Illario M, De Luca V, Leonardini L, Kucharczyk M, Parent AS, Dantas C, Jegundo AL, van Staalduinen W, Ganzarain J, Comisso L, Bramezza C, Carriazo AM, Maritati A, Tramontano G, Capozzi P, Goossens E, Cotrone C, Costantini A, Ciliberti M, Femiano M, d’Amore A, Forlenza M, Ruggiero R, Bianchi A, Augustin L, Marrazzo V, Dello Ioio T, Capaldo S, Crudeli A, De Cesare G, Cuccaro F, Bracale G, Tramontano D, Postiglione A, Matera C, Coscioni E, Bousquet J. Health tourism: an opportunity for sustainable development. Transl Med UniSa 2019; 19:109-115. [PMID: 31360675 PMCID: PMC6581494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In February 2017, the "Programma Mattone Internazionale Salute" (ProMis), that is the Italian Program for Internationalization of Regional Health Systems of the Ministry of Health (MoH), presented the first version of its Position Paper on Health Tourism, which embeds a first shared approach to the recommendations expressed by the European Committee of Regions (CoR) on "Age-Friendly" tourism. The CoR stresses the importance of local and regional authorities in the coordination of multi-sectoral policies such as healthcare, social assistance, transport, urban planning and rural development in relation to the promotion of mobility, security, accessibility of services, including health care and social services. "Age-friendly" tourism is an example of an innovative tourist offer that strives to meet the health needs of the entire "traveling" population, with an integrated and cross-sector approach that involves various organizations operating in sectors such as healthcare, accessibility and transport. The aim of the workshop was to explore the interest of the stakeholders to participate in a systemic action in the field of "health" tourism, and to identify priority implementation areas that offer opportunities to take advantage of validated, innovative experiences that strengthen the accessibility to health and social services in regional, national and international contexts. This effort provides the opportunity to take advantage of aligning the European Structural and Investment Funds (ESIF) to the development of tourism, coherently with the needs and resources of local and regional health authorities.
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Affiliation(s)
- M Illario
- Health Innovation Division of Campania Region (DG04), Federico II University and Hospital, Naples, Italy
| | - V De Luca
- Research and Development Unit, Federico II University Hospital, Naples, Italy
| | - L Leonardini
- Programma Mattone Internazionale Salute, Italian Ministry of Health, San Donà di Piave VE, Italy
| | | | - AS Parent
- AGE Platform Europe Network, Brussels, Belgium
| | - C Dantas
- Caritas Coimbra, Coimbra, Portugal
| | | | | | - J Ganzarain
- Academy on Age-friendly Environments BV, Gouda, the Netherlands
| | - L Comisso
- Azienda per i Servizi Sanitari n.5 “Bassa Friulana”, Udine, Italy
| | - C Bramezza
- Azienda ULSS n. 4 Veneto Orientale, San Donà di Piave VE, Italy
| | | | - A Maritati
- Programma Mattone Internazionale Salute, Italian Ministry of Health, San Donà di Piave VE, Italy
| | - G Tramontano
- Research and Development Unit, Federico II University Hospital, Naples, Italy
| | - P Capozzi
- Health Innovation Division of Campania Region (DG04), Federico II University and Hospital, Naples, Italy
| | - E Goossens
- Center for Gastrology, Brussels, Belgium
| | - C Cotrone
- Relations with European and extra-European countries Division, Campania Region, Naples, Italy
| | - A Costantini
- Azienda Sanitaria Locale Napoli 3 Sud, Castellamare di Stabia NA, Italy
| | - M Ciliberti
- Azienda Sanitaria Locale Napoli 3 Sud, Castellamare di Stabia NA, Italy
| | - M Femiano
- Azienda Sanitaria Locale Napoli 2 Nord, Frattamaggiore NA, Italy
| | - A d’Amore
- Azienda Sanitaria Locale Napoli 2 Nord, Frattamaggiore NA, Italy
| | - M Forlenza
- Azienda Sanitaria Locale Napoli 1 Centro, Naples, Italy
| | - R Ruggiero
- Azienda Sanitaria Locale Napoli 1 Centro, Naples, Italy
| | - A Bianchi
- Istituto Nazionale Tumori Pascale, Naples, Italy
| | - L Augustin
- Istituto Nazionale Tumori Pascale, Naples, Italy
| | - V Marrazzo
- Regional Coordination of Tourism Districts of Campania, Naples, Italy
| | - T Dello Ioio
- Parco regionale dei Monti Lattari, Castellammare di Stabia NA, Italy
| | - S Capaldo
- Federalberghi Terme, Rome, Italy
- Federterme, Rome, Italy
| | | | - G De Cesare
- Centro Mediterranea Diagnostica Srl, Castellamare di Stabia NA, Italy
| | - F Cuccaro
- Centro Mediterranea Diagnostica Srl, Castellamare di Stabia NA, Italy
| | - G Bracale
- Mediterranean Federation for Advancing Vascular Surgery, Naples, Italy
| | - D Tramontano
- Department of Molecular Medicine and Medical Biotechnology, Federico II University, Naples, Italy
| | - A Postiglione
- General Directorate for Health Protection and the coordination of Regional Health System, Campania Region, Naples, Italy
| | - C Matera
- Regional Ministry for Tourism, Campania Region, Naples, Italy
| | - E Coscioni
- Department of Heart Surgery, San Giovanni di Dio e Ruggi d’Aragona Hospital, Salerno, Italy
| | - J Bousquet
- Department of Pneumology and Addictology, Montpellier University Hospital Center, Montpellier, France
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Debourg A, Laurent M, Goossens E, Borremans E, Van De Winkel L, Masschelein CA. Wort Aldehyde Reduction Potential in Free and Immobilized Yeast Systems. Journal of the American Society of Brewing Chemists 2018. [DOI: 10.1094/asbcj-52-0100] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- A. Debourg
- CERIA Institut des Industries de Fermentation, 1 Avenue E, Gryson, B-1070 Brussels, Belgium
| | - M. Laurent
- CERIA Institut des Industries de Fermentation, 1 Avenue E, Gryson, B-1070 Brussels, Belgium
| | - E. Goossens
- CERIA Institut des Industries de Fermentation, 1 Avenue E, Gryson, B-1070 Brussels, Belgium
| | - E. Borremans
- CERIA Institut des Industries de Fermentation, 1 Avenue E, Gryson, B-1070 Brussels, Belgium
| | - L. Van De Winkel
- CERIA Institut des Industries de Fermentation, 1 Avenue E, Gryson, B-1070 Brussels, Belgium
| | - C. A. Masschelein
- CERIA Institut des Industries de Fermentation, 1 Avenue E, Gryson, B-1070 Brussels, Belgium
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Villa KD, Lee S, Goossens E, Debourg A, Masschelein CA. Control of Vicinal Diketone Production by Brewer's Yeast. I. Effects ofILV5andILV3Gene Amplification on Vicinal Diketone Production andILVEnzyme Activity. Journal of the American Society of Brewing Chemists 2018. [DOI: 10.1094/asbcj-53-0049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - S. Lee
- Coors Brewing Company, B.C. 600, Golden, CO
| | - E. Goossens
- Vrije Universiteit, Brussel, CERIA Service de Brasserie, Ave. E. Gryzon, 1, 1070 Brussels, Belgium
| | - A. Debourg
- Vrije Universiteit, Brussel, CERIA Service de Brasserie, Ave. E. Gryzon, 1, 1070 Brussels, Belgium
| | - C. A. Masschelein
- Vrije Universiteit, Brussel, CERIA Service de Brasserie, Ave. E. Gryzon, 1, 1070 Brussels, Belgium
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Villanueba KD, Goossens E, Masschelein CA. Subthreshold Vicinal Diketone Levels in Lager Brewing Yeast Fermentations by Means ofILV5Gene Amplification. Journal of the American Society of Brewing Chemists 2018. [DOI: 10.1094/asbcj-48-0111] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- K. D. Villanueba
- Institute des Industries de Fermentation and Institute for Biotechnology, Vrije Universiteit Brussel, CERIA/COOVI, Avenue E. Gryson, 1070 Brussels, Belgium
| | - E. Goossens
- Institute des Industries de Fermentation and Institute for Biotechnology, Vrije Universiteit Brussel, CERIA/COOVI, Avenue E. Gryson, 1070 Brussels, Belgium
| | - C. A. Masschelein
- Institute des Industries de Fermentation and Institute for Biotechnology, Vrije Universiteit Brussel, CERIA/COOVI, Avenue E. Gryson, 1070 Brussels, Belgium
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Dillemans M, Goossens E, Goffin O, Masschelein CA. The Amplification Effect of theILV5Gene on the Production of Vicinal Diketones inSaccharomyces Cerevisiae. Journal of the American Society of Brewing Chemists 2018. [DOI: 10.1094/asbcj-45-0081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- M. Dillemans
- Institut des Industries de Fermentation, C.E.R.I.A., 1070 Brussels, Belgium
| | - E. Goossens
- Institut des Industries de Fermentation, C.E.R.I.A., 1070 Brussels, Belgium
| | - O. Goffin
- Institut des Industries de Fermentation, C.E.R.I.A., 1070 Brussels, Belgium
| | - C. A. Masschelein
- Institut des Industries de Fermentation, C.E.R.I.A., 1070 Brussels, Belgium
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Rombaut C, Mertes H, Heindryckx B, Goossens E. Human in vitro spermatogenesis from pluripotent stem cells: in need of a stepwise differentiation protocol? Mol Hum Reprod 2017; 24:47-54. [DOI: 10.1093/molehr/gax065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 12/07/2017] [Indexed: 12/15/2022] Open
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Kadam P, Van Saen D, Goossens E. Can mesenchymal stem cells improve spermatogonial stem cell transplantation efficiency? Andrology 2017; 5:2-9. [PMID: 27989021 DOI: 10.1111/andr.12304] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 06/02/2016] [Revised: 10/04/2016] [Accepted: 10/20/2016] [Indexed: 12/11/2022]
Abstract
Improved treatments have led to an increased survival rate in cancer patients. However, in pre-pubertal boys, these gonadotoxic treatments can result in the depletion of the spermatogonial stem cell (SSC) pool causing lifelong infertility. SSC transplantation has been proposed as a promising technique to preserve the fertility of these patients. In mice, this technique has resulted in live-born offspring, but the efficiency of colonization remained low. This could be because of a deficient microenvironment, leading to apoptosis of the transplanted SSCs. Interestingly, mesenchymal stem cells (MSCs), being multipotent and easy to isolate and multiply in vitro, are nowadays successfully and widely used in regenerative medicine. Here, we shortly review the current understanding of MSC and SSC biology, and we hypothesize that a combined MSC-SSC transplantation might improve the efficiency of SSC colonization and differentiation as paracrine factors from MSCs may contribute to the SSC niche.
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Affiliation(s)
- P Kadam
- Biology of the Testis (BITE) Laboratory, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - D Van Saen
- Biology of the Testis (BITE) Laboratory, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - E Goossens
- Biology of the Testis (BITE) Laboratory, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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Ombelet F, Goossens E, Apers S, Budts W, Gewillig M, Moons P. P6316Prediction of 10-year mortality in adults with congenital heart disease using disease severity and functional indices. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6316] [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: 11/13/2022] Open
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Goossens E, Van Deyk K, Budts W, Moons P. P2104Missed appointments for outpatient visits as predictors for care gaps in adults with congenital heart disease. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2104] [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: 11/13/2022] Open
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Van Bulck L, Luyckx K, Goossens E, Oris L, Apers S, Moons P. P1525Illness identity as predictor of healthcare use in adults with congenital heart disease. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1525] [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: 11/14/2022] Open
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Valgaeren B, Hanssens H, Roelandt S, Goossens E, Verherstraeten S, Gille L, Van Driessche L, Haesebrouck F, Ducatelle R, Van Immerseel F, Deprez P, Pardon B. Solid feed provision reduces fecal clostridial excretion in veal calves. VLAAMS DIERGEN TIJDS 2016. [DOI: 10.21825/vdt.v85i6.16311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Enterotoxemia is characterized by a highly fatal hemorrhagic enteritis in cattle, caused by Clostridium perfringens. Production systems with intensive feeding, such as the veal industry, are predisposed. The primary objective of this study was to determine the effect of solid feed provision on fecal C. perfringens excretion in veal calves. Ten Holstein Friesian bull veal calves were randomly assigned to one of two test diets. Group 1 received solemnly milk replacer twice daily, while group 2 received milk replacer and a maximum of 300g solid feed/day, consisting of a mixture of 30% barley, 30% corn, 30% hulled wheat and 10% chopped straw. The number of C. perfringens per g feces or fecal clostridial counts (FCC) were determined for all calves. Mean FCC were significantly lower in the calves fed milk replacer and solid feed, than in the calves fed solemnly milk replacer. Although the correlation between FCC and enterotoxemia risk remains to be determined, the provision of solid feed to veal calves reduced clostridial excretion, which might contribute to the prevention of this disease.
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Verherstraeten S, Goossens E, Valgaeren B, Pardon B, Timbermont L, Haesebrouck F, Ducatelle R, Deprez P, Van Immerseel F. Non-toxic perfringolysin O and α-toxin derivatives as potential vaccine candidates against bovine necrohaemorrhagic enteritis. Vet J 2016; 217:89-94. [PMID: 27810219 DOI: 10.1016/j.tvjl.2016.09.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 09/19/2016] [Accepted: 09/28/2016] [Indexed: 12/25/2022]
Abstract
Bovine necrohaemorrhagic enteritis is a fatal Clostridium perfringens type A-induced disease that is characterised by sudden death. Recently the involvement of perfringolysin O and α-toxin in the development of necrohaemorrhagic lesions in the gut of calves was suggested, and thus derivatives of these toxins are potentially suitable as vaccine antigens. In the current study, the perfringolysin O derivative PFOL491D, alone or in combination with α-toxin derivative GST-cpa247-370, was evaluated as possible vaccine candidate, using in vitro assays. PFOL491D showed no haemolytic effect on horse red blood cells and no cytotoxic effect on bovine endothelial cells. Furthermore, calves immunised with PFOL491D raised antibodies against perfringolysin O that could inhibit the perfringolysin O-associated haemolytic activity on horse red blood cells. Antisera from calves immunised with PFOL491D had a significantly higher neutralising capacity against the cytotoxic effect of C. perfringens culture supernatant to bovine endothelial cells than serum from control calves (P <0.05). Immunisation of calves with PFOL491D in combination with GST-cpa247-370 elicited antibodies against perfringolysin O and α-toxin and consequently inhibited both the perfringolysin O-associated haemolytic activity and the α-toxin-associated lecithinase activity in vitro. Additionally, the neutralising ability of these antisera on the cytotoxic effect of C. perfringens culture supernatant to bovine endothelial cells was significantly higher than that from calves immunised with PFOL491D (P <0.001). In conclusion, perfringolysin O derivative PFOL491D is an immunogenic antigen that can potentially be used to produce vaccine against bovine necrohaemorrhagic enteritis. Including α-toxin derivative GST-cpa247-370 has an additional protective effect and therefore vaccination of calves with a combination of both antigens seems even more promising.
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Affiliation(s)
- S Verherstraeten
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - E Goossens
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - B Valgaeren
- Department of Internal Medicine and Clinical Biology of Large Animals, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - B Pardon
- Department of Internal Medicine and Clinical Biology of Large Animals, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - L Timbermont
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - F Haesebrouck
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - R Ducatelle
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - P Deprez
- Department of Internal Medicine and Clinical Biology of Large Animals, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - F Van Immerseel
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium.
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Onofre J, Baert Y, Faes K, Goossens E. Cryopreservation of testicular tissue or testicular cell suspensions: a pivotal step in fertility preservation. Hum Reprod Update 2016; 22:744-761. [PMID: 27566839 PMCID: PMC5099994 DOI: 10.1093/humupd/dmw029] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 07/19/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Germ cell depletion caused by chemical or physical toxicity, disease or genetic predisposition can occur at any age. Although semen cryopreservation is the first reflex for preserving male fertility, this cannot help out prepubertal boys. Yet, these boys do have spermatogonial stem cells (SSCs) that able to produce sperm at the start of puberty, which allows them to safeguard their fertility through testicular tissue (TT) cryopreservation. SSC transplantation (SSCT), TT grafting and recent advances in in vitro spermatogenesis have opened new possibilities to restore fertility in humans. However, these techniques are still at a research stage and their efficiency depends on the amount of SSCs available for fertility restoration. Therefore, maintaining the number of SSCs is a critical step in human fertility preservation. Standardizing a successful cryopreservation method for TT and testicular cell suspensions (TCSs) is most important before any clinical application of fertility restoration could be successful. OBJECTIVE AND RATIONALE This review gives an overview of existing cryopreservation protocols used in different animal models and humans. Cell recovery, cell viability, tissue integrity and functional assays are taken into account. Additionally, biosafety and current perspectives in male fertility preservation are discussed. SEARCH METHODS An extensive PubMED and MEDline database search was conducted. Relevant studies linked to the topic were identified by the search terms: cryopreservation, male fertility preservation, (immature)testicular tissue, testicular cell suspension, spermatogonial stem cell, gonadotoxicity, radiotherapy and chemotherapy. OUTCOMES The feasibility of fertility restoration techniques using frozen-thawed TT and TCS has been proven in animal models. Efficient protocols for cryopreserving human TT exist and are currently applied in the clinic. For TCSs, the highest post-thaw viability reported after vitrification is 55.6 ± 23.8%. Yet, functional proof of fertility restoration in the human is lacking. In addition, few to no data are available on the safety aspects inherent to offspring generation with gametes derived from frozen-thawed TT or TCSs. Moreover, clarification is needed on whether it is better to cryopreserve TT or TCS. WIDER IMPLICATIONS Fertility restoration techniques are very promising and expected to be implemented in the clinic in the near future. However, inter-center variability needs to be overcome and the gametes produced for reproduction purposes need to be subjected to safety studies. With the perspective of a future clinical application, there is a dire need to optimize and standardize cryopreservation and safety testing before using frozen-thawed TT of TCSs for fertility restoration.
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Affiliation(s)
- J Onofre
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Y Baert
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - K Faes
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - E Goossens
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
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Luttik MLA, Goossens E, Ågren S, Jaarsma T, Mårtensson J, Thompson DR, Moons P, Strömberg A. Attitudes of nurses towards family involvement in the care for patients with cardiovascular diseases. Eur J Cardiovasc Nurs 2016; 16:299-308. [DOI: 10.1177/1474515116663143] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- MLA Luttik
- Hanze University of Applied Sciences, Research Group Nursing Diagnostics, Groningen, The Netherlands
- Linköping University, Division of Nursing Science, Department of Medicine and Health Sciences, Linköping, Sweden
| | - E Goossens
- KU Leuven, University of Leuven, Department of Public Health and Primary Care, Leuven, Belgium
| | - S Ågren
- Linköping University, Department of Medicine and Health Sciences and Department of Cardiothoracic Surgery, Linköping, Sweden
| | - T Jaarsma
- Linköping University, Department of Social and Welfare Studies, Faculty of Health Sciences, Linköping, Sweden
| | - J Mårtensson
- Jönköping University, School of Health and Welfare, Department of Nursing, Jönköping, Sweden
| | - DR Thompson
- Australian Catholic University, Centre for the Heart and Mind, Melbourne, Australia
| | - P Moons
- KU Leuven, University of Leuven, Department of Public Health and Primary Care, Leuven, Belgium
- Institute of Health and Care Sciences, University of Gothenburg, Sweden
| | - A Strömberg
- Linköping University, Division of Nursing Science, Department of Medicine and Health Sciences, Linköping, Sweden
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Valgaeren B, Goossens E, Verherstraeten S, Gille L, Van Driessche L, Van Immerseel F, Ducatelle R, Deprez P, Pardon B. Gastro-intestinale Clostridium perfringens-infecties: een blijvend gevaar in de Belgische rundveehouderij. VLAAMS DIERGEN TIJDS 2016. [DOI: 10.21825/vdt.v85i1.16407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
De intensivering van de moderne landbouw wordt geassocieerd met een toename van Clostridium perfringens-gerelateerde, gastro-intestinale problemen bij intensief gevoede runderen, zoals “hemorrhagic bowel disease” bij hoogproductief melkvee en enterotoxemie bij kalveren. Waar de pathogenese van hemorrhagic bowel disease nog grotendeels ongekend is, werden er de laatste jaren nieuwe inzichten in de pathogenese van enterotoxemie bekomen die een belangrijke repercussie op de aanpak van deze ziekte onder praktijkomstandigheden hebben. Ook andere clostridiumgeassocieerde maagdarminfecties, zoals “overeating disease” en neonatale clostridiose, worden regelmatig gediagnosticeerd. Overvoedering met structuurarme, eiwitrijke voeders is een overkoepelende risicofactor bij zowel HBD, enterotoxemie als overeating disease. Een goed uitgebalanceerd dieet dat zo stabiel mogelijk gehouden wordt, is dan ook het belangrijkste aandachtspunt op bedrijven die problemen hebben met clostridiose. Daarnaast dient bij jonge kalveren voldoende aandacht gegeven te worden aan een correcte en hygiënische biestverstrekking om problemen met neonatale clostridiose te vermijden.
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Van Damme N, Buijck B, Van Hecke A, Verhaeghe S, Goossens E, Beeckman D. Development of a Quality of Meals and Meal Service Set of Indicators for Residential Facilities for Elderly. J Nutr Health Aging 2016; 20:471-7. [PMID: 27102782 DOI: 10.1007/s12603-015-0627-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVES To develop a content validated set of indicators to evaluate the quality of meals and meal service in residential facilities for elderly. Inadequate food intake is an important risk factor for malnutrition in residential facilities for elderly. Through better meeting the needs and preferences of residents and optimization of meals and meal service, residents' food intake can improve. No indicators were available which could help to guide strategies to improve the quality of meals and meal service. DESIGN The indicator set was developed according to the Indicator Development Manual of the Dutch Institute for Health Care Improvement (CBO). The working group consisted of three nurse researchers and one expert in gastrology and had expertise in elderly care, malnutrition, indicator development, and food quality. A preliminary list of potential indicators was compiled using the literature and the working group's expertise. Criteria necessary to measure the indicator in practice were developed for each potential indicator. In a double Delphi procedure, the list of potential indicators and respective criteria were analyzed for content validity, using a multidisciplinary expert panel of 11 experts in elderly meal care. RESULTS A preliminary list of 20 quality indicators, including 45 criteria, was submitted to the expert panel in a double Delphi procedure. After the second Delphi round, 13 indicators and 25 criteria were accepted as having content validity. The content validity index (CVI) ranged from 0.83 to 1. The indicator set consisted of six structural, four result, and three outcome indicators covering the quality domains food, service and choice, as well as nutritional screening. The criteria measure diverse aspects of meal care which are part of the responsibility of kitchen staff and health care professionals. CONCLUSION The 'quality of meals and meal service' set of indicators is a resource to map meal quality in residential facilities for elderly. As soon as feasibility tests in practice are completed, the indicator set can be used to guide meal and meal service quality improvement projects in collaboration with kitchen staff and health care professionals. These improvement projects will help to improve food intake and reduce the risk of malnutrition among elders living in residential facilities.
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Affiliation(s)
- N Van Damme
- Dimitri Beeckman, PhD, Professor, University Center for Nursing and Midwifery , Ghent University Hospital, 5K3, De Pintelaan 185, 9000 Ghent, Belgium, Phone: Direct : +32 (0) 9 332 83 48 Secretary : + 32 (0) 9 332 83 92, E-mail:
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Van Saen D, Pino Sánchez J, Ferster A, van der Werff ten Bosch J, Tournaye H, Goossens E. Is the protein expression window during testicular development affected in patients at risk for stem cell loss? Hum Reprod 2015; 30:2859-70. [PMID: 26405262 DOI: 10.1093/humrep/dev238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 11/25/2014] [Accepted: 08/25/2015] [Indexed: 12/14/2022] Open
Abstract
STUDY QUESTION Is the protein expression window during testicular development affected in prepubertal patients at risk for stem cell loss? SUMMARY ANSWER Nuclear ubiquitin carboxyl-terminal esterase L1 (UCHL1) expression in Sertoli cells and interstitial expression of inhibin α (INHA), sex-determining region Y-box 9 (SOX9) and steroidogenic acute regulatory protein (STAR) was affected in patients with Klinefelter syndrome. WHAT IS KNOWN ALREADY Some patients undergoing testicular tissue banking have already been treated before the testis biopsy is taken. These treatments include chemotherapy or hydroxyurea, which can have an influence on the stem cell number and function. A germinal loss occurs in Klinefelter patients, but its cause is currently unknown. STUDY DESIGN, SIZE, DURATION Parrafin-embedded testicular tissue from 5 fetuses, 25 prepubertal patients and 5 adults was used to characterize the spatial and temporal distribution of different testicular marker proteins during testicular development. Expression of the markers was evaluated in germ cells, Sertoli cell and interstitial cells. The integrity of this time window was analyzed in patients at risk for germ cell loss: patients treated with hydroxyurea (n = 7), patients treated with chemotherapy (n = 6) and patients affected by Klinefelter syndrome (n = 5). PARTICIPANTS/MATERIALS, SETTING, METHODS Immunohistochemistry was performed in normal fetal, prepubertal and adult testicular tissue to set up a timeline for the expression of melanoma antigen family A4 (MAGE-A4), ubiquitin carboxyl-terminal esterase L1 (UCHL1), octamer-binding transcription factor 4 (OCT4), stage-specific embryonic antigen-4 (SSEA4), homeobox protein NANOG, INHA, anti-Müllerian hormone, androgen receptor (AR), SOX9 and STAR. The established timeline was used to evaluate whether the expression of these markers was altered in patients at risk for germ cell loss (patients treated for sickle cell disease (hydroxyurea) or cancer (chemotherapy) and patients with Klinefelter syndrome). MAIN RESULTS AND THE ROLE OF CHANCE A protein expression timeline was created using different markers expressed in different testicular cell types. Less positive tubules and less positive cells per tubule were observed for MAGE-A4 and UCHL1 expression in the KS compared with the non-treated group (P < 0.01). Higher nuclear UCHL1 Sertoli cell expression was observed in the KS group compared with the non-treated group (P < 0.05). Higher interstitial expression of INHA (P < 0.05), SOX9 (P < 0.01) and STAR (P < 0.05) was observed in KS compared with the non-treated group. LIMITATIONS, REASONS FOR CAUTION Important age variations exist in the prepubertal groups. Therefore, data were represented in three age groups. However, owing to the limited access to prepubertal tissue, no statistical comparison was possible between these groups. For the Klinefelter group, tissue was only available from patients older than 12 years. WIDER IMPLICATIONS OF THE FINDINGS The expression timeline can add knowledge to the process of spermatogenesis and be used to evaluate altered protein patterns in patients undergoing potentially gonadotoxic treatments, to monitor spermatogenesis established in vitro and to unravel causes of germ cell loss in Klinefelter patients.
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Affiliation(s)
- D Van Saen
- Department of Reproduction, Genetics and Regenerative Medicine/Research Laboratory Biology of the Testis, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels, 1090 Belgium
| | - J Pino Sánchez
- Department of Reproduction, Genetics and Regenerative Medicine/Research Laboratory Biology of the Testis, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels, 1090 Belgium
| | - A Ferster
- Pediatric Hemato-Oncology, Hôpital Universitaire des Enfants Reine Fabiola, Jean-Joseph Crocqlaan 15, Brussels, 1020 Belgium
| | - J van der Werff ten Bosch
- Department of Pediatrics, Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel (VUB), Laarbeeklaan 101, Brussels, 1090, Belgium
| | - H Tournaye
- Department of Reproduction, Genetics and Regenerative Medicine/Research Laboratory Biology of the Testis, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels, 1090 Belgium Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel (VUB), Laarbeeklaan 101, Brussels 1090, Belgium
| | - E Goossens
- Department of Reproduction, Genetics and Regenerative Medicine/Research Laboratory Biology of the Testis, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Brussels, 1090 Belgium
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Baert Y, Stukenborg JB, Landreh M, De Kock J, Jörnvall H, Söder O, Goossens E. Derivation and characterization of a cytocompatible scaffold from human testis. Hum Reprod 2014; 30:256-67. [PMID: 25505010 DOI: 10.1093/humrep/deu330] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
STUDY QUESTION Is it possible to derive a scaffold from human testis for the purpose of tissue engineering and regenerative medicine? SUMMARY ANSWER We developed a method to produce a cytocompatible decellularized testicular matrix (DTM) while maintaining the native tissue-specific characteristics and components. WHAT IS KNOWN ALREADY The potential benefits of tissue-specific scaffolds consisting of naturally-derived extracellular matrix (ECM) have been demonstrated using a wide variety of animal and human tissue sources. However, so far, testis scaffolds have never been considered for constructive remodelling purposes. STUDY DESIGN, SIZE, DURATION Human cadaveric testicular tissue was exposed for 24 or 48 h to 1% Triton X-100 and/or 1% sodium dodecyl sulphate (SDS). Acellular samples were used for further scaffold characterization purposes. PARTICIPANTS/MATERIALS, SETTING, METHODS The extent of decellularization was evaluated by histology. Confirmation of cell removal in DTM was done by a DNA quantification technique. Retention of testicular tissue-specific characteristics was evaluated by mass spectrometry, immunohistochemistry, Alcian blue staining and scanning electron microscopy. Soluble toxicity and testicular cell attachment was assessed to check the cytocompatibility of DTM scaffolds. MAIN RESULTS AND THE ROLE OF CHANCE Histological analysis showed that DTM could be obtained by mechanical agitation in 1% SDS for 24 h. The resulting DTM was found to be clear of cells while retaining the typical three-dimensional structure and the major components of the native tissue scaffold, including collagen type I and IV, fibronectin, laminin and glycosaminoglycans. In addition, using proteomic analysis, we revealed numerous additional ECM proteins in DTM, indicating its complex nature. The mass spectrometry data were deposited to the ProteomeXchange with identifier PXD001524. Importantly, we demonstrated that DTM scaffolds are not cytotoxic, as evidenced by MTT assay not showing an aberrant fibroblast proliferation activity after indirect exposure, and support testicular cell attachment and infiltration. LIMITATIONS, REASONS FOR CAUTION The functionality of human testicular cells in DTM needs to be investigated. WIDER IMPLICATIONS OF THE FINDINGS Our results suggest that the insights into the molecular composition of the testicular ECM provide new clues for the unravelling of its important yet poorly understood role in regulating testicular function, and DTM-based bioscaffolds are promising components for the development of human in vitro spermatogenesis as a treatment for various types of male fertility disorders.
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Affiliation(s)
- Y Baert
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - J-B Stukenborg
- Pediatric Endocrinology Unit; Q2:08, Department of Women's and Children's Health, Karolinska Institutet and University Hospital, SE-17176 Stockholm, Sweden
| | - M Landreh
- Division of Chemistry I, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-17177 Stockholm, Sweden
| | - J De Kock
- Department of In Vitro Toxicology and Dermato-Cosmetology, Center for Pharmaceutical Research, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - H Jörnvall
- Division of Chemistry I, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-17177 Stockholm, Sweden
| | - O Söder
- Pediatric Endocrinology Unit; Q2:08, Department of Women's and Children's Health, Karolinska Institutet and University Hospital, SE-17176 Stockholm, Sweden
| | - E Goossens
- Biology of the Testis, Research Laboratory for Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
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Apers S, Luyckx K, Goossens E, Rassart J, Moons P. Socio-demographic and clinical determinants of sense of coherence in adolescents with congenital heart disease. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Baert Y, Van Saen D, Haentjens P, In't Veld P, Tournaye H, Goossens E. What is the best cryopreservation protocol for human testicular tissue banking? Hum Reprod 2013; 28:1816-26. [DOI: 10.1093/humrep/det100] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Valgaeren BR, Pardon B, Flahou B, Verherstraeten S, Goossens E, Timbermont L, Haesebrouck F, Ducatelle R, Van Immerseel F, Deprez PR. Prevalence and bacterial colonisation of fundic ulcerations in veal calves. Vet Rec 2013; 172:269. [DOI: 10.1136/vr-2012-101371] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- B. R. Valgaeren
- Department of Large Animal Internal Medicine; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - B. Pardon
- Department of Large Animal Internal Medicine; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - B. Flahou
- Department of Pathology; Bacteriology and Avian Diseases; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - S. Verherstraeten
- Department of Pathology; Bacteriology and Avian Diseases; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - E. Goossens
- Department of Pathology; Bacteriology and Avian Diseases; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - L. Timbermont
- Department of Pathology; Bacteriology and Avian Diseases; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - F. Haesebrouck
- Department of Pathology; Bacteriology and Avian Diseases; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - R. Ducatelle
- Department of Pathology; Bacteriology and Avian Diseases; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - F. Van Immerseel
- Department of Pathology; Bacteriology and Avian Diseases; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
| | - P. R. Deprez
- Department of Large Animal Internal Medicine; Faculty of Veterinary Medicine; Ghent University; Salisburylaan 133 Merelbeke B-9820 Belgium
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Abstract
STUDY QUESTION What issues remain to be solved before fertility preservation and transplantation can be offered to prepubertal boys? SUMMARY ANSWER The main issues that need further investigation are malignant cell decontamination, improvement of in vivo fertility restoration and in vitro maturation. WHAT IS KNOWN ALREADY Prepubertal boys who need gonadotoxic treatment might render sterile for the rest of their life. As these boys do not yet produce sperm cells, they cannot benefit from sperm banking. Spermatogonial stem cell (SSC) banking followed by autologous transplantation has been proposed as a fertility preservation strategy. But before this technique can be applied in the clinic, some important issues have to be resolved. STUDY DESIGN, SIZE DURATION Original articles as well as review articles published in English were included in a search of the literature. PARTICIPANTS/MATERIALS, SETTING, METHODS Relevant studies were selected by an extensive Medline search. Search terms were fertility preservation, cryopreservation, prepubertal, SSC, testis tissue, transplantation, grafting and in vitro spermatogenesis. The final number of studies selected for this review was 102. MAIN RESULTS AND THE ROLE OF CHANCE Cryopreservation protocols for testicular tissue have been developed and are already being used in the clinic. Since the efficiency and safety of SSC transplantation have been reported in mice, transplantation methods are now being adapted to the human testes. Very recently, a few publications reported on in vitro spermatogenesis in mice, but this technique is still far from being applied in a clinical setting. LIMITATIONS, REASONS FOR CAUTION Using tissue from cancer patients holds a potential risk for contamination of the collected testicular tissue. Therefore, it is of immense importance to separate malignant cells from the cell suspension before transplantation. Because biopsies obtained from young boys are small and contain only few SSCs, propagation of these cells in vitro will be necessary. WIDER IMPLICATIONS OF THE FINDINGS The ultimate use of the banked tissue will depend on the patient's disease. If the patient was suffering from a non-malignant disease, tissue grafting might be offered. In cancer patients, decontaminated cell suspensions will be injected in the testis. For patients with Klinefelter syndrome, the only option would be in vitro spermatogenesis. However, at present, restoring fertility in cancer and Klinefelter patients is not yet possible. STUDY FUNDING/COMPETING INTEREST(S) Research Foundation, Flanders (G.0385.08 to H.T.), the Institute for the Agency for Innovation, Belgium (IWT/SB/111245 to E.G.), the Flemish League against Cancer (to E.G.), Kom op tegen kanker (G.0547.11 to H.T.) and the Fund Willy Gepts (to HT). E.G. is a Postdoctoral Fellow of the FWO, Research Foundation, Flanders. There are no conflicts of interest.
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Affiliation(s)
- E Goossens
- Biology of the testis, Department for Embryology and Genetics, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium.
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Valgaeren BR, Pardon B, Verherstraeten S, Goossens E, Timbermont L, Haesebrouck F, Ducatelle R, Deprez PR, Van Immerseel F. Intestinal clostridial counts have no diagnostic value in the diagnosis of enterotoxaemia in veal calves. Vet Rec 2013; 172:237. [PMID: 23362178 DOI: 10.1136/vr.101236] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Enterotoxaemia is an important cause of sudden death in veal calves. This study aimed to evaluate intestinal Clostridium perfringens counts as a diagnostic tool for enterotoxaemia. Field necropsies were conducted on 48 sudden death cases in Belgian Blue veal farms. In 31/48 suddenly deceased calves, the diagnosis of enterotoxaemia was made based on haemorrhagic lesions in the small intestines, while in seven of these cases, no clear-cut diagnosis could be made based on macroscopic appearance of the gut. In the 10 remaining calves, a definitive cause of death other than enterotoxaemia could be identified. Samples of the intestinal content were taken for quantification of C perfringens. After matching cases and controls for diet, and the interval between death and sampling, no significant differences could be detected between the mean C perfringens counts of the small intestines in enterotoxaemia cases and counts in the matching segments in the control group. These results indicate that intestinal C perfringens counts cannot be advised as a discriminative postmortem diagnostic tool for enterotoxaemia in veal calves, not even when sampled within three hours after death.
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Affiliation(s)
- B R Valgaeren
- Department of Internal Medicine and Clinical Biology of Large Animals, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke B-9820, Belgium.
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Veršilovskis A, Geys J, Huybrechts B, Goossens E, De Saeger S, Callebaut A. Simultaneous determination of masked forms of deoxynivalenol and zearalenone after oral dosing in rats by LC-MS/MS. WORLD MYCOTOXIN J 2012. [DOI: 10.3920/wmj2012.1411] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In vivo metabolism of masked or conjugated mycotoxins is poorly documented as standards are not commercially available and indirect analysis using hydrolytic enzymes is difficult to validate and cumbersome. We synthesised zearalenone-14-glucoside (ZEA-14G) chemically. Deoxynivalenol-3-glucuronide (DON-3GlcA) and glucuronides of 3- and 15-acetyl-deoxynivalenol (3- and 15-ADON-GlcAs), de-epoxydeoxynivalenol, zearalenone (ZEA), α- and β-zearalenol (α- and β-ZOL) were synthesised using rat microsomes. For the first time three ADON-GlcAs were synthesised: two 3-ADON-GlcAs and one 15-ADON-GlcA. After purification, the masked mycotoxin and the metabolites were characterised by NMR (DON-3GlcA, ZEA-14G) or by full scan MS, MS/MS fragmentation, UV-spectra, β-glucosidase and β-glucuronidase treatment. In a first experiment, rats were fed orally DON-3-glucoside (DON-3G) and ZEA-14G, together with 13C-DON and 13C-ZEA and were sacrificed after 55 minutes. A total of 21 masked metabolites, metabolites and parent mycotoxins were quantified in rat organs. Whereas DON-3G was hardly hydrolysed in the stomach, ZEA was clearly formed from ZEA-14G. In a second experiment, 3- and 15-ADON were given orally to rats. The acetylated forms of DON were hydrolysed in the stomach, in contrast to DON-3G. Rats can directly glucuronidate ADONs without deacetylation. Neither DOM, α- or β-ZOL nor their glucuronides could be quantified. Glucuronidated 3-ADON accumulated in the small intestines, together with DON-3GlcA in rats fed orally with 3- and 15-ADON. These differences in masked mycotoxins metabolism can be important in risk analysis of masked mycotoxins in food and feed.
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Affiliation(s)
- A. Veršilovskis
- Veterinary and Agrochemical Research Centre (CODA-CERVA), Operational Direction Chemical Safety of the Food Chain, Unit of Toxins and Natural Components, Leuvensesteenweg 17, 3080 Tervuren, Belgium
- Faculty of Pharmaceutical Sciences, Department of Bio-Analysis, Ghent University, Harelbekestraat 72, 9000 Gent, Belgium
| | - J. Geys
- Veterinary and Agrochemical Research Centre (CODA-CERVA), Operational Direction Chemical Safety of the Food Chain, Unit of Toxins and Natural Components, Leuvensesteenweg 17, 3080 Tervuren, Belgium
| | - B. Huybrechts
- Veterinary and Agrochemical Research Centre (CODA-CERVA), Operational Direction Chemical Safety of the Food Chain, Unit of Toxins and Natural Components, Leuvensesteenweg 17, 3080 Tervuren, Belgium
| | - E. Goossens
- CODA-CERVA, Operational Direction Interactions and Surveillance, Unit of Surveillance, Orientation and Veterinary Support, Leuvensesteenweg 17, 3080 Tervuren, Belgium
| | - S. De Saeger
- Faculty of Pharmaceutical Sciences, Department of Bio-Analysis, Ghent University, Harelbekestraat 72, 9000 Gent, Belgium
| | - A. Callebaut
- Veterinary and Agrochemical Research Centre (CODA-CERVA), Operational Direction Chemical Safety of the Food Chain, Unit of Toxins and Natural Components, Leuvensesteenweg 17, 3080 Tervuren, Belgium
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Gies I, De Schepper J, Van Saen D, Anckaert E, Goossens E, Tournaye H. Failure of a combined clinical- and hormonal-based strategy to detect early spermatogenesis and retrieve spermatogonial stem cells in 47,XXY boys by single testicular biopsy. Hum Reprod 2012; 27:998-1004. [PMID: 22313866 DOI: 10.1093/humrep/des002] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Although germ cells in boys with Klinefelter syndrome (KS) are reduced in number as early as infancy, a severe germ cell loss occurs during mid-puberty. Therefore, we wanted to detect spermatogenesis at an early stage and investigate the strategy of preserving spermatozoa and/or testicular spermatogonial stem cells in adolescents with KS when signs of deteriorating spermatogenesis are observed. METHODS Tanner staging, testicular size, serum inhibin B and spermaturia were assessed every 4 months before the attempt to procure gametogenic cells in seven non-mosaic 47,XXY adolescents, aged between 10 and 16 years. RESULTS Despite an increasing testis volume in the youngest and a Tanner staging of more than three in the oldest patients, no spermaturia was observed. In two patients serum inhibin B increased gradually, while in all others a rather rapid but variable decline was observed at different ages. No spermatozoa were observed after electroejaculation. No spermatocytes or spermatids were found at microscopic examination of single biopsies, while spermatogonia were identified in four subjects, three of whom had measurable serum inhibin B. Massive fibrosis and hyalinization were observed in all biopsies. CONCLUSION No spermatogenesis was documented in non-mosaic 47,XXY adolescents either by spermaturia, electroejaculation or testicular biopsy. Neither clinical nor hormonal parameters were of value in determining the timing for optimal spermatogonial stem cell retrieval. More data are needed to elucidate the potential role of testicular tissue cryopreservation in adolescents with KS. Therefore, at present, the cryopreservation of testes tissue for clinical reasons should not be recommended.
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Affiliation(s)
- I Gies
- Department of Pediatrics, UZ Brussel, Laarbeeklaan 101, B1090 Jette, Brussels, Belgium.
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Van Saen D, Gies I, De Schepper J, Tournaye H, Goossens E. Can pubertal boys with Klinefelter syndrome benefit from spermatogonial stem cell banking? Hum Reprod 2011; 27:323-30. [DOI: 10.1093/humrep/der425] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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