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Bruins S, van Bergen E, Masselink MW, Barzeva SA, Hartman CA, Otten R, Rommelse NNJ, Dolan CV, Boomsma DI. Are Genetic and Environmental Risk Factors for Psychopathology Amplified in Children with Below-Average Intelligence? A Population-Based Twin Study. Behav Genet 2024; 54:278-289. [PMID: 38353893 PMCID: PMC11032279 DOI: 10.1007/s10519-023-10174-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 12/20/2023] [Indexed: 04/21/2024]
Abstract
There is a negative association between intelligence and psychopathology. We analyzed data on intelligence and psychopathology to assess this association in seven-year-old Dutch twin pairs (ranging from 616 to 14,150 depending on the phenotype) and estimated the degree to which genetic and environmental factors common to intelligence and psychopathology explain the association. Secondly, we examined whether genetic and environmental effects on psychopathology are moderated by intelligence. We found that intelligence, as assessed by psychometric IQ tests, correlated negatively with childhood psychopathology, as assessed by the DSM-oriented scales of the Child Behavior Check List (CBCL). The correlations ranged between - .09 and - .15 and were mainly explained by common genetic factors. Intelligence moderated genetic and environmental effects on anxiety and negative affect, but not those on ADHD, ODD, and autism. The heritability of anxiety and negative affect was greatest in individuals with below-average intelligence. We discuss mechanisms through which this effect could arise, and we end with some recommendations for future research.
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Affiliation(s)
- Susanne Bruins
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands.
| | - Elsje van Bergen
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
- Research Institute LEARN!, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maurits W Masselink
- Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Stefania A Barzeva
- Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Catharina A Hartman
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Roy Otten
- Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands
| | - Nanda N J Rommelse
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Karakter Child and Adolescent Psychiatry University Center, Nijmegen, The Netherlands
| | - Conor V Dolan
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Dorret I Boomsma
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Research and Development (AR&D) Research Institute, Amsterdam, The Netherlands
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Wang D, Trimbos KB, Gomes SIF, Jacquemyn H, Merckx VSFT. Metabarcoding read abundances of orchid mycorrhizal fungi are correlated to copy numbers estimated using ddPCR. New Phytol 2024; 242:1825-1834. [PMID: 37929750 DOI: 10.1111/nph.19385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/20/2023] [Indexed: 11/07/2023]
Abstract
Quantifying the abundances of fungi is key to understanding natural variation in mycorrhizal communities in relation to plant ecophysiology and environmental heterogeneity. High-throughput metabarcoding approaches have transformed our ability to characterize and compare complex mycorrhizal communities. However, it remains unclear how well metabarcoding read counts correlate with actual read abundances in the sample, potentially limiting their use as a proxy for species abundances. Here, we use droplet digital PCR (ddPCR) to evaluate the reliability of ITS2 metabarcoding data for quantitative assessments of mycorrhizal communities in the orchid species Neottia ovata sampled at multiple sites. We performed specific ddPCR assays for eight families of orchid mycorrhizal fungi and compared the results with read counts obtained from metabarcoding. Our results demonstrate a significant correlation between DNA copy numbers measured by ddPCR assays and metabarcoding read counts of major mycorrhizal partners of N. ovata, highlighting the usefulness of metabarcoding for quantifying the abundance of orchid mycorrhizal fungi. Yet, the levels of correlation between the two methods and the numbers of false zero values varied across fungal families, which warrants cautious evaluation of the reliability of low-abundance families. This study underscores the potential of metabarcoding data for more quantitative analyses of mycorrhizal communities and presents practical workflows for metabarcoding and ddPCR to achieve a more comprehensive understanding of orchid mycorrhizal communities.
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Affiliation(s)
- Deyi Wang
- Naturalis Biodiversity Center, 2332 AA, Leiden, the Netherlands
- Institute of Biology, Leiden University, 2333 BE, Leiden, the Netherlands
| | - Krijn B Trimbos
- Department of Environmental Biology, Institute of Environmental Sciences, 2333 CC, Leiden University, Leiden, the Netherlands
| | - Sofia I F Gomes
- Institute of Biology, Leiden University, 2333 BE, Leiden, the Netherlands
| | - Hans Jacquemyn
- Department of Biology, Plant Conservation and Population Biology, KU Leuven, Kasteelpark Arenberg 31, Heverlee, 3001, Leuven, Belgium
| | - Vincent S F T Merckx
- Naturalis Biodiversity Center, 2332 AA, Leiden, the Netherlands
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 1098 XH, Amsterdam, the Netherlands
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3
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Kocevska D, Trajanoska K, Mulder RH, Koopman-Verhoeff ME, Luik AI, Tiemeier H, van Someren EJW. Are some children genetically predisposed to poor sleep? A polygenic risk study in the general population. J Child Psychol Psychiatry 2024; 65:710-719. [PMID: 37936537 DOI: 10.1111/jcpp.13899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/22/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND Twin studies show moderate heritability of sleep traits: 40% for insomnia symptoms and 46% for sleep duration. Genome-wide association studies (GWAS) have identified genetic variants involved in insomnia and sleep duration in adults, but it is unknown whether these variants affect sleep during early development. We assessed whether polygenic risk scores for insomnia (PRS-I) and sleep duration (PRS-SD) affect sleep throughout early childhood to adolescence. METHODS We included 2,458 children of European ancestry (51% girls). Insomnia-related items of the Child Behavior Checklist were reported by mothers at child's age 1.5, 3, and 6 years. At 10-15 years, the Sleep Disturbance Scale for Children and actigraphy were assessed in a subsample (N = 975). Standardized PRS-I and PRS-SD (higher scores indicate genetic susceptibility for insomnia and longer sleep duration, respectively) were computed at multiple p-value thresholds based on largest GWAS to date. RESULTS Children with higher PRS-I had more insomnia-related sleep problems between 1.5 and 15 years (BPRS-I < 0.001 = .09, 95% CI: 0.05; 0.14). PRS-SD was not associated with mother-reported sleep problems. A higher PRS-SD was in turn associated with longer actigraphically estimated sleep duration (BPRS-SD < 5e08 = .05, 95% CI: 0.001; 0.09) and more wake after sleep onset (BPRS-SD < 0.005 = .25, 95% CI: 0.04; 0.47) at 10-15 years, but these associations did not survive multiple testing correction. CONCLUSIONS Children who are genetically predisposed to insomnia have more insomnia-like sleep problems, whereas those who are genetically predisposed to longer sleep have longer sleep duration, but are also more awake during the night in adolescence. This indicates that polygenic risk for sleep traits, based on GWAS in adults, affects sleep already in children.
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Affiliation(s)
- Desana Kocevska
- Department of Sleep and Cognition, Netherlands Institute for Neuroscience, Amsterdam, The Netherlands
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Generation R Study, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Katerina Trajanoska
- Department of Internal Medicine, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Rosa H Mulder
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Generation R Study, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - M Elisabeth Koopman-Verhoeff
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Generation R Study, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Annemarie I Luik
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Henning Tiemeier
- The Department of Social and Behavioral Science, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Eus J W van Someren
- Department of Sleep and Cognition, Netherlands Institute for Neuroscience, Amsterdam, The Netherlands
- Department of Psychiatry, Amsterdam Public Health Research Institute and Amsterdam Neuroscience Research Institute, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Hounjet J, Van Aerschot L, De Keersmaecker K, Vooijs M, Kampen KR. The DMT1 isoform lacking the iron-response element regulates normal and malignant hematopoiesis via NOTCH pathway activation. FEBS Lett 2024. [PMID: 38594214 DOI: 10.1002/1873-3468.14870] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/08/2024] [Accepted: 02/27/2024] [Indexed: 04/11/2024]
Abstract
Natural resistance-associated macrophage protein 2 (NRAMP 2; also known as DMT1 and encoded by SLC11A2) is mainly known for its iron transport activity. Recently, the DMT1 isoform lacking the iron-response element (nonIRE) was associated with aberrant NOTCH pathway activity. In this report, we investigated the function of DMT1 nonIRE in normal and malignant hematopoiesis. Knockdown of Dmt1 nonIRE in mice showed that it has non-canonical functions in hematopoietic stem cell differentiation: its knockdown suppressed development along the myeloid and lymphoid lineages, while promoting the production of platelets. These phenotypic effects on the hematopoietic system induced by Dmt1 nonIRE knockdown were linked to suppression of Notch/Myc pathway activity. Conversely, our data indicate a non-canonical function for DMT1 nonIRE overexpression in boosting NOTCH pathway activity in T-cell leukemia homeobox protein 1 (TLX1)-defective leukemia. This work sets the stage for future investigation using a multiple-hit T-cell acute lymphoblastic leukemia (T-ALL) model to further investigate the function of DMT1 nonIRE in T-ALL disease development and progression.
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Affiliation(s)
- Judith Hounjet
- Department of Radiation Oncology (Maastro), GROW School for Oncology and Reproduction, Maastricht University Medical Centre, The Netherlands
| | - Linde Van Aerschot
- Laboratory for Disease Mechanisms in Cancer, Department of Oncology, KU Leuven, Belgium
- Leuven Cancer Institute (LKI), Belgium
| | - Kim De Keersmaecker
- Laboratory for Disease Mechanisms in Cancer, Department of Oncology, KU Leuven, Belgium
- Leuven Cancer Institute (LKI), Belgium
| | - Marc Vooijs
- Department of Radiation Oncology (Maastro), GROW School for Oncology and Reproduction, Maastricht University Medical Centre, The Netherlands
| | - Kim R Kampen
- Department of Radiation Oncology (Maastro), GROW School for Oncology and Reproduction, Maastricht University Medical Centre, The Netherlands
- Laboratory for Disease Mechanisms in Cancer, Department of Oncology, KU Leuven, Belgium
- Leuven Cancer Institute (LKI), Belgium
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5
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Weber RR, Stindt CN, van der Harten AMJ, Feringa BL. Push-Pull Bis-Norbornadienes for Solar Thermal Energy Storage. Chemistry 2024:e202400482. [PMID: 38519425 DOI: 10.1002/chem.202400482] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
The norbornadiene/quadricyclane (NBD/QC) photoswitch pair represents a promising system for application in molecular solar thermal energy storage (MOST). Often, the NBD derivatives have very limited overlap with the solar spectrum, and substitution to redshift the absorption leads to a decrease in the gravimetric energy density. Dimeric systems mitigate this factor because two switches can 'share' a substituent. Here, we present five new NBD dimers with red-shifted absorption spectra. One dimer features the most red-shifted absorption onset (539 nm) and a significantly red-shifted absorption maximum (404 nm) for NBD systems reported so far, without compromising thermal half-life. Promising properties for high-performance MOST applications are demonstrated, such as high absorption onsets reaching 539 nm, and energy densities of 379 kJ/kg, while still maintaining long half-lives of the metastable isomer, up to 23 hours at 25 °C.
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Affiliation(s)
- Roza R Weber
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen, 9747 AG, The Netherlands
| | - Charlotte N Stindt
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen, 9747 AG, The Netherlands
| | - A M J van der Harten
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen, 9747 AG, The Netherlands
| | - Ben L Feringa
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen, 9747 AG, The Netherlands
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6
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Donner SH, Slingerland M, Beekman MM, Comte A, Dicke M, Zwaan BJ, Pannebakker BA, Verhulst EC. Aphid populations are frequently infected with facultative endosymbionts. Environ Microbiol 2024; 26:e16599. [PMID: 38459641 DOI: 10.1111/1462-2920.16599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/09/2024] [Indexed: 03/10/2024]
Abstract
The occurrence of facultative endosymbionts has been studied in many commercially important crop pest aphids, but their occurrence and effects in non-commercial aphid species in natural populations have received less attention. We screened 437 aphid samples belonging to 106 aphid species for the eight most common facultative aphid endosymbionts. We found one or more facultative endosymbionts in 53% (56 of 106) of the species investigated. This likely underestimates the situation in the field because facultative endosymbionts are often present in only some colonies of an aphid species. Oligophagous aphid species carried facultative endosymbionts significantly more often than monophagous species. We did not find a significant correlation between ant tending and facultative endosymbiont presence. In conclusion, we found that facultative endosymbionts are common among aphid populations. This study is, to our knowledge, the first of its kind in the Netherlands and provides a basis for future research in this field. For instance, it is still unknown in what way many of these endosymbionts affect their hosts, which is important for determining the importance of facultative endosymbionts to community dynamics.
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Affiliation(s)
- S Helena Donner
- Laboratory of Genetics, Wageningen University & Research, Wageningen, Netherlands
- Laboratory of Entomology, Wageningen University & Research, Wageningen, Netherlands
| | - Marijn Slingerland
- Laboratory of Genetics, Wageningen University & Research, Wageningen, Netherlands
| | - Mariska M Beekman
- Laboratory of Genetics, Wageningen University & Research, Wageningen, Netherlands
- Laboratory of Entomology, Wageningen University & Research, Wageningen, Netherlands
| | - Arthur Comte
- Laboratory of Genetics, Wageningen University & Research, Wageningen, Netherlands
| | - Marcel Dicke
- Laboratory of Entomology, Wageningen University & Research, Wageningen, Netherlands
| | - Bas J Zwaan
- Laboratory of Genetics, Wageningen University & Research, Wageningen, Netherlands
| | - Bart A Pannebakker
- Laboratory of Genetics, Wageningen University & Research, Wageningen, Netherlands
| | - Eveline C Verhulst
- Laboratory of Entomology, Wageningen University & Research, Wageningen, Netherlands
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7
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Novello M, Bosman LWJ, De Zeeuw CI. A Systematic Review of Direct Outputs from the Cerebellum to the Brainstem and Diencephalon in Mammals. Cerebellum 2024; 23:210-239. [PMID: 36575348 PMCID: PMC10864519 DOI: 10.1007/s12311-022-01499-w] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/22/2022] [Indexed: 05/13/2023]
Abstract
The cerebellum is involved in many motor, autonomic and cognitive functions, and new tasks that have a cerebellar contribution are discovered on a regular basis. Simultaneously, our insight into the functional compartmentalization of the cerebellum has markedly improved. Additionally, studies on cerebellar output pathways have seen a renaissance due to the development of viral tracing techniques. To create an overview of the current state of our understanding of cerebellar efferents, we undertook a systematic review of all studies on monosynaptic projections from the cerebellum to the brainstem and the diencephalon in mammals. This revealed that important projections from the cerebellum, to the motor nuclei, cerebral cortex, and basal ganglia, are predominantly di- or polysynaptic, rather than monosynaptic. Strikingly, most target areas receive cerebellar input from all three cerebellar nuclei, showing a convergence of cerebellar information at the output level. Overall, there appeared to be a large level of agreement between studies on different species as well as on the use of different types of neural tracers, making the emerging picture of the cerebellar output areas a solid one. Finally, we discuss how this cerebellar output network is affected by a range of diseases and syndromes, with also non-cerebellar diseases having impact on cerebellar output areas.
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Affiliation(s)
- Manuele Novello
- Department of Neuroscience, Erasmus MC, Rotterdam, the Netherlands
| | | | - Chris I De Zeeuw
- Department of Neuroscience, Erasmus MC, Rotterdam, the Netherlands.
- Netherlands Institute for Neuroscience, Royal Academy of Arts and Sciences (KNAW), Amsterdam, the Netherlands.
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8
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Raman NV, Dubey A, van Donk E, von Elert E, Lürling M, Fernandes TV, de Senerpont Domis LN. Understanding the differential impacts of two antidepressants on locomotion of freshwater snails (Lymnaea stagnalis). Environ Sci Pollut Res Int 2024; 31:12406-12421. [PMID: 38233708 PMCID: PMC10869440 DOI: 10.1007/s11356-024-31914-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/03/2024] [Indexed: 01/19/2024]
Abstract
There is growing evidence of negative impacts of antidepressants on behavior of aquatic non-target organisms. Accurate environmental risk assessment requires an understanding of whether antidepressants with similar modes of action have consistent negative impacts. Here, we tested the effect of acute exposure to two antidepressants, fluoxetine and venlafaxine (0-50 µg/L), on the behavior of non-target organism, i.e., freshwater pond snail, Lymnaea stagnalis. As compounds interact with chemical cues in the aquatic ecosystems, we also tested whether the effects altered in the presence of bile extract containing 5α-cyprinol sulfate (5α-CPS), a characterized kairomone of a natural predator, common carp (Cyprinus carpio). Behavior was studied using automated tracking and analysis of various locomotion parameters of L. stagnalis. Our results suggest that there are differences in the effects on locomotion upon exposure to venlafaxine and fluoxetine. We found strong evidence for a non-monotonic dose response on venlafaxine exposure, whereas fluoxetine only showed weak evidence of altered locomotion for a specific concentration. Combined exposure to compounds and 5α-CPS reduced the intensity of effects observed in the absence of 5α-CPS, possibly due to reduced bioavailability of the compounds. The results highlight the need for acknowledging different mechanisms of action among antidepressants while investigating their environmental risks. In addition, our results underline the importance of reporting non-significant effects and acknowledging individual variation in behavior for environmental risk assessment.
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Affiliation(s)
- Nandini Vasantha Raman
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands
| | - Asmita Dubey
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands.
- Department of Aquatic Ecology and Water Quality Management, Wageningen University & Research, P.O. Box 47, 6708 PB, Wageningen, The Netherlands.
| | - Ellen van Donk
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands
- Department of Environmental Biology, University of Utrecht, Utrecht, The Netherlands
| | - Eric von Elert
- Aquatic Chemical Ecology, Biocenter, Institute of Zoology, University of Cologne, Cologne, Germany
| | - Miquel Lürling
- Department of Aquatic Ecology and Water Quality Management, Wageningen University & Research, P.O. Box 47, 6708 PB, Wageningen, The Netherlands
| | - Tânia V Fernandes
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands
| | - Lisette N de Senerpont Domis
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands
- Department of Aquatic Ecology and Water Quality Management, Wageningen University & Research, P.O. Box 47, 6708 PB, Wageningen, The Netherlands
- Department of Pervasive Systems, EEMCS, University of Twente & Department of Water Resources, ITC, University of Twente, Enschede, The Netherlands
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9
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Kootker LM, Ammer STM, Wescott DJ, Davies GR, Mickleburgh HL. Sr-Pb isotope differences in pre- and post-burial human bone, teeth, and hair keratin: implications for isotope forensics. Int J Legal Med 2024; 138:151-164. [PMID: 36820918 PMCID: PMC10772009 DOI: 10.1007/s00414-023-02976-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/12/2023] [Indexed: 02/24/2023]
Abstract
The isotopic signatures of human tissues can provide valuable information on geographic origin for medicolegal investigations involving unidentified persons. It is important to understand the impact of diagenetic processes on isotopic signatures, as alterations could result in incorrect estimation of geographic origin. This study examines alterations in isotope signatures of different tissues of five human body donors studied throughout decomposition at the Forensic Anthropology Research Facility (FARF), San Marcos, TX. Two body donors were buried, two were placed in open pits, and one was first allowed to naturally mummify and then buried. Remains were recovered after a period of 7-34 months. The preplacement and post-recovery Sr-Pb isotope data of scalp hair, bone (iliac and tibia), and tooth enamel and dentine were compared. The hair samples record significant shifts in Sr-Pb isotope compositions, with hair keratin Pb isotope composition shifting towards the Pb signature of local soil samples. Hair keratin Sr isotope compositions were altered by the burial environment and possibly also by the lab sample cleaning method. The spongy iliac bone samples show inconsistencies in the recoverability of the preplacement Sr-Pb isotope signatures. The post-placement signatures of the buried donors show slight elevation over preplacement signatures. The post-placement signatures of donors placed in open pits are significantly elevated. The tibia and dental samples record the most consistent isotopic data with the least alteration. These more densely mineralised elements show good recoverability of the preplacement isotope signatures in burials and open pits and are thus deemed better targets for forensic investigative purposes.
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Affiliation(s)
- Lisette M Kootker
- Geology & Geochemistry Cluster, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands.
- Co Van Ledden Hulsebosch Centre (CLHC), Science Park 904, 1098 XH, Amsterdam, the Netherlands.
| | - Saskia T M Ammer
- Geology & Geochemistry Cluster, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands
- Co Van Ledden Hulsebosch Centre (CLHC), Science Park 904, 1098 XH, Amsterdam, the Netherlands
| | - Daniel J Wescott
- Forensic Anthropology Centre, Department of Anthropology, Texas State University, 601 University Drive, San Marcos, TX, 78666, USA
| | - Gareth R Davies
- Geology & Geochemistry Cluster, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands
- Co Van Ledden Hulsebosch Centre (CLHC), Science Park 904, 1098 XH, Amsterdam, the Netherlands
| | - Hayley L Mickleburgh
- Forensic Anthropology Centre, Department of Anthropology, Texas State University, 601 University Drive, San Marcos, TX, 78666, USA.
- Amsterdam Centre for Ancient Studies and Archaeology, Faculty of Humanities, University of Amsterdam, P.O. Box 94203, 1090 GE, Amsterdam, the Netherlands.
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10
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Boom MP, Schreven KHT, Buitendijk NH, Moonen S, Nolet BA, Eichhorn G, van der Jeugd HP, Lameris TK. Earlier springs increase goose breeding propensity and nesting success at Arctic but not at temperate latitudes. J Anim Ecol 2023; 92:2399-2411. [PMID: 37899661 DOI: 10.1111/1365-2656.14020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 09/22/2023] [Indexed: 10/31/2023]
Abstract
Intermittent breeding is an important tactic in long-lived species that trade off survival and reproduction to maximize lifetime reproductive success. When breeding conditions are unfavourable, individuals are expected to skip reproduction to ensure their own survival. Breeding propensity (i.e. the probability for a mature female to breed in a given year) is an essential parameter in determining reproductive output and population dynamics, but is not often studied in birds because it is difficult to obtain unbiased estimates. Breeding conditions are especially variable at high latitudes, potentially resulting in a large effect on breeding propensity of Arctic-breeding migratory birds, such as geese. With a novel approach, we used GPS-tracking data to determine nest locations, breeding propensity and nesting success of barnacle geese, and studied how these varied with breeding latitude and timing of arrival on the breeding grounds relative to local onset of spring. Onset of spring at the breeding grounds was a better predictor of breeding propensity and nesting success than relative timing of arrival. At Arctic latitudes (>66° N), breeding propensity decreased from 0.89 (95% CI: 0.65-0.97) in early springs to 0.22 (95% CI: 0.06-0.55) in late springs, while at temperate latitudes, it varied between 0.75 (95% CI: 0.38-0.93) and 0.89 (95% CI: 0.41-0.99) regardless of spring phenology. Nesting success followed a similar pattern and was lower in later springs at Arctic latitudes, but not at temperate latitudes. In early springs, a larger proportion of geese started breeding despite arriving late relative to the onset of spring, possibly because the early spring enabled them to use local resources to fuel egg laying and incubation. While earlier springs due to climate warming are considered to have mostly negative repercussions on reproductive success through phenological mismatches, our results suggest that these effects may partly be offset by higher breeding propensity and nesting success.
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Affiliation(s)
- Michiel P Boom
- Vogeltrekstation-Dutch Centre for Avian Migration and Demography (NIOO-KNAW), Wageningen, The Netherlands
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Theoretical and Computational Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Kees H T Schreven
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Theoretical and Computational Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Nelleke H Buitendijk
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Theoretical and Computational Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Sander Moonen
- Wageningen Environmental Reseach (WEnR), Wageningen, The Netherlands
- Institute of Avian Research, Wilhelmshaven, Germany
- Institute for Wetlands and Waterbird Research e.V., Verden (Aller), Germany
| | - Bart A Nolet
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Theoretical and Computational Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Götz Eichhorn
- Vogeltrekstation-Dutch Centre for Avian Migration and Demography (NIOO-KNAW), Wageningen, The Netherlands
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
| | - Henk P van der Jeugd
- Vogeltrekstation-Dutch Centre for Avian Migration and Demography (NIOO-KNAW), Wageningen, The Netherlands
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
| | - Thomas K Lameris
- NIOZ Royal Netherlands Institute for Sea Research, Den Burg, The Netherlands
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11
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Kocevska D, Schuurmans IK, Cecil CAM, Jansen PW, van Someren EJW, Luik AI. A Longitudinal Study of Stress During Pregnancy, Children's Sleep and Polygenic Risk for Poor Sleep in the General Pediatric Population. Res Child Adolesc Psychopathol 2023; 51:1909-1918. [PMID: 37439941 PMCID: PMC10661881 DOI: 10.1007/s10802-023-01097-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2023] [Indexed: 07/14/2023]
Abstract
Early life stress is robustly associated with poor sleep across life. Preliminary studies suggest that these associations may begin already in utero. Here, we study the longitudinal associations of prenatal psychosocial stress with sleep across childhood, and assess whether prenatal stress interacts with genetic liability for poor sleep.The study is embedded in the Generation R population-based birth cohort. Caregivers reported on prenatal psychosocial stress (life events, contextual, parental or interpersonal stressors) and on children's sleep at ages 2 months, 1.5, 2, 3 and 6 years. The study sample consisted of 4,930 children; polygenic risk scores for sleep traits were available in 2,063.Prenatal stress was consistently associated with more sleep problems across assessments. Effect sizes ranged from small (B = 0.21, 95%CI: 0.14;0.27) at 2 months to medium (B = 0.45, 95%CI: 0.38;0.53) at 2 years. Prenatal stress was moreover associated with shorter sleep duration at 2 months (Bhrs = -0.22, 95%CI: -0.32;-0.12) and at 2 years (Bhrs = -0.04, 95%CI -0.07; -0.001), but not at 3 years (Bhrs = 0.02, 95%CI: -0.02;0.06). Prenatal negative life events interacted with polygenic risk for insomnia to exacerbate sleep problems at 6 years (Binteraction = 0.07, 95%CI: 0.02;0.13).Psychosocial stress during pregnancy has negative associations with children's sleep that persist across childhood, and are exacerbated by genetic liability for insomnia. Associations with sleep duration were more pronounced in infancy and seem to attenuate with age. These findings highlight the role of the prenatal environment for developing sleep regulation, and could inform early intervention programs targeting sleep in children from high-risk pregnancies.
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Affiliation(s)
- Desana Kocevska
- Department of Sleep and Cognition, Netherlands Institute for Neuroscience, Amsterdam, Netherlands.
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, Netherlands.
- Generation R Study, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands.
| | - Isabel K Schuurmans
- Generation R Study, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Charlotte A M Cecil
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, Netherlands
- Generation R Study, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Pauline W Jansen
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, Netherlands
- Generation R Study, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
- Department of Psychology, Erasmus University Rotterdam, Education, and Child Studies, Rotterdam, The Netherlands
| | - Eus J W van Someren
- Department of Sleep and Cognition, Netherlands Institute for Neuroscience, Amsterdam, Netherlands
- Department of Psychiatry, UMC, Amsterdam Public Health Research Institute and Amsterdam Neuroscience Research Institute, Vrije Universiteit, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam, Amsterdam Neuroscience, Netherlands
| | - Annemarie I Luik
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, Netherlands
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
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12
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Lewis AG, Schoffelen JM, Bastiaansen M, Schriefers H. Is beta in agreement with the relatives? Using relative clause sentences to investigate MEG beta power dynamics during sentence comprehension. Psychophysiology 2023; 60:e14332. [PMID: 37203219 DOI: 10.1111/psyp.14332] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 03/20/2023] [Accepted: 04/27/2023] [Indexed: 05/20/2023]
Abstract
There remains some debate about whether beta power effects observed during sentence comprehension reflect ongoing syntactic unification operations (beta-syntax hypothesis), or instead reflect maintenance or updating of the sentence-level representation (beta-maintenance hypothesis). In this study, we used magnetoencephalography to investigate beta power neural dynamics while participants read relative clause sentences that were initially ambiguous between a subject- or an object-relative reading. An additional condition included a grammatical violation at the disambiguation point in the relative clause sentences. The beta-maintenance hypothesis predicts a decrease in beta power at the disambiguation point for unexpected (and less preferred) object-relative clause sentences and grammatical violations, as both signal a need to update the sentence-level representation. While the beta-syntax hypothesis also predicts a beta power decrease for grammatical violations due to a disruption of syntactic unification operations, it instead predicts an increase in beta power for the object-relative clause condition because syntactic unification at the point of disambiguation becomes more demanding. We observed decreased beta power for both the agreement violation and object-relative clause conditions in typical left hemisphere language regions, which provides compelling support for the beta-maintenance hypothesis. Mid-frontal theta power effects were also present for grammatical violations and object-relative clause sentences, suggesting that violations and unexpected sentence interpretations are registered as conflicts by the brain's domain-general error detection system.
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Affiliation(s)
- Ashley Glen Lewis
- Neurobiology of Language Department, Max Planck Institute for Psycholinguistics, Nijmegen, the Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
| | - Jan-Mathijs Schoffelen
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
| | - Marcel Bastiaansen
- Academy for Leisure and Events, Breda University of Applied Sciences, Breda, the Netherlands
- Department of Cognitive Neuropsychology, School of Social and Behavioural Sciences, Tilburg University, Tilburg, the Netherlands
| | - Herbert Schriefers
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
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13
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van den Hurk Y, Sikström F, Amkreutz L, Bleasdale M, Borvon A, Ephrem B, Fernández-Rodríguez C, Gibbs HMB, Jonsson L, Lehouck A, Cedeira JM, Meng S, Monge R, Moreno M, Nabais M, Nores C, Pis-Millán JA, Riddler I, Schmölcke U, Segschneider M, Speller C, Vretemark M, Wickler S, Collins M, Nadeau MJ, Barrett JH. The prelude to industrial whaling: identifying the targets of ancient European whaling using zooarchaeology and collagen mass-peptide fingerprinting. R Soc Open Sci 2023; 10:230741. [PMID: 37711146 PMCID: PMC10498027 DOI: 10.1098/rsos.230741] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023]
Abstract
Taxonomic identification of whale bones found during archaeological excavations is problematic due to their typically fragmented state. This difficulty limits understanding of both the past spatio-temporal distributions of whale populations and of possible early whaling activities. To overcome this challenge, we performed zooarchaeology by mass spectrometry on an unprecedented 719 archaeological and palaeontological specimens of probable whale bone from Atlantic European contexts, predominantly dating from ca 3500 BCE to the eighteenth century CE. The results show high numbers of Balaenidae (many probably North Atlantic right whale (Eubalaena glacialis)) and grey whale (Eschrichtius robustus) specimens, two taxa no longer present in the eastern North Atlantic. This discovery matches expectations regarding the past utilization of North Atlantic right whales, but was unanticipated for grey whales, which have hitherto rarely been identified in the European zooarchaeological record. Many of these specimens derive from contexts associated with mediaeval cultures frequently linked to whaling: the Basques, northern Spaniards, Normans, Flemish, Frisians, Anglo-Saxons and Scandinavians. This association raises the likelihood that early whaling impacted these taxa, contributing to their extirpation and extinction. Much lower numbers of other large cetacean taxa were identified, suggesting that what are now the most depleted whales were once those most frequently used.
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Affiliation(s)
- Youri van den Hurk
- Department of Archaeology and Cultural History, University Museum, Norwegian University of Science and Technology, Trondheim, Norway
- Groningen Institute of Archaeology, University of Groningen, Groningen, The Netherlands
| | - Fanny Sikström
- Department of Archaeology and Cultural History, University Museum, Norwegian University of Science and Technology, Trondheim, Norway
| | - Luc Amkreutz
- National Museum of Antiquities, Papengracht 30, 2301EC Leiden, The Netherlands
- Faculty of Archaeology, Leiden University, Einsteinweg 2, 2333 Leiden, The Netherlands
| | | | - Aurélia Borvon
- CNRS, UMR 7041 ArScAn Equipe Archéologies Environnementales, Nanterre, France
- Laboratoire d'Anatomie Comparée, ONIRIS (École Nationale Vétérinaire, Agroalimentaire et de l'Alimentation, Nantes-Atlantique), Nantes, France
| | - Brice Ephrem
- CNRS, UMR 6566 CReAAH Laboratoire Archéosciences, University of Rennes, Campus de Beaulieu, 35042 Rennes Cedex, France
| | | | | | - Leif Jonsson
- Osteology, Aschebergsgatan 32, Gothenburg, SE 41133, Sweden
| | - Alexander Lehouck
- Abbey Museum of the Dunes, Koninklijke Prinslaan 6–8, 8670 Koksijde, Belgium
| | - Jose Martínez Cedeira
- Coordinadora para o Estudio dos Mamíferos Mariños, Rúa do Ceán, No 2, 36350 Nigrán, Pontevedra, Spain
| | - Stefan Meng
- Institute of Geography and Geology, University of Greifswald, Friedrich-Ludwig-Jahn Strasse 17A, 17487 Greifswald, Germany
| | - Rui Monge
- UNIARQ – Centro de Arqueologia da Universidade de Lisboa, Faculdade de Letras, Universidade de Lisboa, Lisbon, 1600-214, Portugal
| | - Marta Moreno
- Instituto de Historia - CSIC, Albasanz 26-28, Madrid, 28037, Spain
| | - Mariana Nabais
- Institute of Geography and Geology, University of Greifswald, Friedrich-Ludwig-Jahn Strasse 17A, 17487 Greifswald, Germany
- IPHES-CERCA - Institut Català de Paleoecologia Humana i Evolució Social, Zona Educacional 4, Campus Sescelades URV (Edifici W3), 43007 Tarragona, Spain
- Departament d'Història i Història de l'Art, Universitat Rovira i Virgili, Avinguda de Catalunya 35, 43002 Tarragona, Spain
| | - Carlos Nores
- INDUROT – Instituto de Recursos Naturales y Ordenación del Territorio, Universidad de Oviedo, Mieres, 33600, Spain
| | - José Antonio Pis-Millán
- Centro de Experimentación Pesquera, Dirección General de Pesca Marítima, Gobierno del Principado de Asturias, 33212 Gijón, Spain
| | - Ian Riddler
- Independent Researcher, Schloss Gottorf, Schleswig, Germany
| | - Ulrich Schmölcke
- Centre for Baltic and Scandinavian Archaeology (ZBSA), Schloss Gottorf, Schleswig, Germany
| | - Martin Segschneider
- Lower Saxony Institute for Historical Coastal Research, Viktoriastrasse 26/28, 26382 Wilhelmshaven, Germany
| | - Camilla Speller
- Department of Anthropology, University of British Columbia, 6303 NW Marine Drive, Vancouver V6T 1Z1, Canada
| | | | | | - Matthew Collins
- Department of Archaeology, University of Cambridge, Cambridge, UK
- The Globe Institute, University of Copenhagen, Kobenhavns, Denmark
| | - Marie-Josée Nadeau
- National Laboratory for Age Determination, NTNU Vitenskapsmuseet, Norwegian University of Science and Technology, Erling Skakkes Gate 47b, 7491 Trondheim, Norway
| | - James H. Barrett
- Department of Archaeology and Cultural History, University Museum, Norwegian University of Science and Technology, Trondheim, Norway
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14
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Baaleman DF, Vriesman MH, Lu PL, Benninga MA, Levitt MA, Wood RJ, Yacob D, Di Lorenzo C, Koppen IJ. Long-Term Outcomes of Antegrade Continence Enemas to Treat Constipation and Fecal Incontinence in Children. J Pediatr Gastroenterol Nutr 2023; 77:191-197. [PMID: 37195883 PMCID: PMC10348609 DOI: 10.1097/mpg.0000000000003833] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 03/17/2023] [Indexed: 05/19/2023]
Abstract
OBJECTIVES The objective of this study is to investigate long-term outcomes of antegrade continence enema (ACE) treatment in children with constipation or fecal incontinence. METHODS Prospective cohort study including pediatric patients with organic or functional defecation disorders who started ACE treatment. Data were collected at baseline and at follow-up (FU) from 6 weeks until 60 months. We assessed parent and patient-reported gastrointestinal health-related quality of life (HRQoL) using the Pediatric Quality of Life Inventory Gastrointestinal Symptoms Module (PedsQL-GI), gastrointestinal symptoms, adverse events, and patient satisfaction. RESULTS Thirty-eight children were included (61% male, median age 7.7 years, interquartile range 5.5-12.2). Twenty-two children (58%) were diagnosed with functional constipation (FC), 10 (26%) with an anorectal malformation, and 6 (16%) with Hirschsprung disease. FU questionnaires were completed by 22 children (58%) at 6 months, 16 children (42%) at 12 months, 20 children (53%) at 24 months, and 10 children (26%) at 36 months. PedsQL-GI scores improved overall with a significant increase at 12- and 24-month FU for children with FC and a significant increase in parent reported PedsQL-GI score at 36-month FU for children with organic causes. Minor adverse events, such as granulation tissue, were reported in one-third of children, and 10% of children needed a surgical revision of their ACE. The majority of all parents and children reported that they would "probably" or "definitely" choose ACE again. CONCLUSION ACE treatment is perceived positively by patients and parents and can lead to long-term improvement in gastrointestinal HRQoL in children with organic or functional defecation disorders.
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Affiliation(s)
- Desiree F. Baaleman
- From the Division of Gastroenterology, Hepatology, and Nutrition, Nationwide Children’s Hospital, Columbus, OH
- the Department of Pediatric Gastroenterology and Nutrition, Emma Children’s Hospital, Amsterdam UMC, University of Amsterdam & VU University, Amsterdam, The Netherlands
| | - Mana H. Vriesman
- From the Division of Gastroenterology, Hepatology, and Nutrition, Nationwide Children’s Hospital, Columbus, OH
- the Department of Pediatric Gastroenterology and Nutrition, Emma Children’s Hospital, Amsterdam UMC, University of Amsterdam & VU University, Amsterdam, The Netherlands
| | - Peter L. Lu
- From the Division of Gastroenterology, Hepatology, and Nutrition, Nationwide Children’s Hospital, Columbus, OH
- the Center for Colorectal and Pelvic Reconstruction, Nationwide Children’s Hospital, Columbus, OH
| | - Marc A. Benninga
- the Department of Pediatric Gastroenterology and Nutrition, Emma Children’s Hospital, Amsterdam UMC, University of Amsterdam & VU University, Amsterdam, The Netherlands
| | - Marc A. Levitt
- the Center for Colorectal and Pelvic Reconstruction, Nationwide Children’s Hospital, Columbus, OH
| | - Richard J. Wood
- the Center for Colorectal and Pelvic Reconstruction, Nationwide Children’s Hospital, Columbus, OH
| | - Desale Yacob
- From the Division of Gastroenterology, Hepatology, and Nutrition, Nationwide Children’s Hospital, Columbus, OH
- the Center for Colorectal and Pelvic Reconstruction, Nationwide Children’s Hospital, Columbus, OH
| | - Carlo Di Lorenzo
- From the Division of Gastroenterology, Hepatology, and Nutrition, Nationwide Children’s Hospital, Columbus, OH
- the Center for Colorectal and Pelvic Reconstruction, Nationwide Children’s Hospital, Columbus, OH
| | - Ilan J.N. Koppen
- From the Division of Gastroenterology, Hepatology, and Nutrition, Nationwide Children’s Hospital, Columbus, OH
- the Department of Pediatric Gastroenterology and Nutrition, Emma Children’s Hospital, Amsterdam UMC, University of Amsterdam & VU University, Amsterdam, The Netherlands
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15
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Hageman IC, van Rooij IALM, de Blaauw I, Trajanovska M, King SK. A systematic overview of rare disease patient registries: challenges in design, quality management, and maintenance. Orphanet J Rare Dis 2023; 18:106. [PMID: 37147718 PMCID: PMC10163740 DOI: 10.1186/s13023-023-02719-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 05/01/2023] [Indexed: 05/07/2023] Open
Abstract
Patient registries serve to overcome the research limitations inherent in the study of rare diseases, where patient numbers are typically small. Despite the value of real-world data collected through registries, adequate design and maintenance are integral to data quality. We aimed to describe an overview of the challenges in design, quality management, and maintenance of rare disease registries.A systematic search of English articles was conducted in PubMed, Ovid Medline/Embase, and Cochrane Library. Search terms included "rare diseases, patient registries, common data elements, quality, hospital information systems, and datasets". Inclusion criteria were any manuscript type focused upon rare disease patient registries describing design, quality monitoring or maintenance. Biobanks and drug surveillances were excluded.A total of 37 articles, published between 2001 and 2021, met the inclusion criteria. Patient registries covered a wide range of disease areas and covered multiple geographical locations, with a predisposition for Europe. Most articles were methodological reports and described the design and setup of a registry. Most registries recruited clinical patients (92%) with informed consent (81%) and protected the collected data (76%). Whilst the majority (57%) collected patient-reported outcome measures, only few (38%) consulted PAGs during the registry design process. Few reports described details regarding quality management (51%) and maintenance (46%).Rare disease patient registries are valuable for research and evaluation of clinical care, and an increasing number have emerged. However, registries need to be continuously evaluated for data quality and long-term sustainability to remain relevant for future use.
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Affiliation(s)
- Isabel C Hageman
- Department for Surgery, Pediatric Surgery, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands.
- Surgical Research, Murdoch Children's Research Institute, Melbourne, Australia.
| | - Iris A L M van Rooij
- Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ivo de Blaauw
- Department for Surgery, Pediatric Surgery, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Misel Trajanovska
- Surgical Research, Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Sebastian K King
- Surgical Research, Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatric Surgery, The Royal Children's Hospital, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
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16
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Beijers R, Ten Thije I, Bolhuis E, O'Donnell KJ, Tollenaar MS, Shalev I, Hastings WJ, MacIsaac JL, Lin DTS, Meaney M, Kobor MS, Belsky J, de Weerth C. Cumulative risk exposure and child cellular aging in a Dutch low-risk community sample. Psychophysiology 2023; 60:e14205. [PMID: 36323627 DOI: 10.1111/psyp.14205] [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: 02/08/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022]
Abstract
One of the proposed mechanisms linking childhood stressor exposure to negative mental and physical health outcomes in later life is cellular aging. In this prospective, longitudinal, and pre-registered study, we examined the association between a cumulative pattern of childhood risk exposure from age 6 to age 10 (i.e., poor maternal mental health, parental relationship problems, family/friend death, bullying victimization, poor quality friendships) and change in two biomarkers of cellular aging (i.e., telomere length, epigenetic age) from age 6 to age 10 in a Dutch low-risk community sample (n = 193). We further examined the moderating effect of cortisol reactivity at age 6. Ordinary Least Squares regression analyses revealed no significant main effects of childhood risk exposure on change in cellular aging, nor a moderation effect of child cortisol reactivity. Secondary findings showed a positive correlation between telomere length and cortisol reactivity at age 6, warranting further investigation. More research in similar communities is needed before drawing strong conclusions based on the null results.
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Affiliation(s)
- Roseriet Beijers
- Department of Social Development, Behavioral Science Institute, Radboud University, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ilse Ten Thije
- Department of Social Development, Behavioral Science Institute, Radboud University, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Emma Bolhuis
- Department of Social Development, Behavioral Science Institute, Radboud University, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Kieran J O'Donnell
- Yale Child Study Center & Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University, New Haven, Connecticut, USA
- Douglas Hospital Research Centre, Department of Psychiatry, McGill University, Montreal, Canada
| | - Marieke S Tollenaar
- Leiden Institute for Brain and Cognition and Institute of Psychology, Leiden University, Leiden, The Netherlands
| | - Idan Shalev
- Department of Biobehavioral Health, Penn State University, State College, Pennsylvania, USA
| | - Waylon J Hastings
- Department of Biobehavioral Health, Penn State University, State College, Pennsylvania, USA
| | - Julia L MacIsaac
- Department of Medical Genetics, University of British Columbia, BC Children's Hospital Research Institute, Vancouver, Canada
| | - David T S Lin
- Department of Medical Genetics, University of British Columbia, BC Children's Hospital Research Institute, Vancouver, Canada
| | - Michael Meaney
- Douglas Mental Health University Institute, McGill University, Montreal, Canada
| | - Michael S Kobor
- Department of Medical Genetics, University of British Columbia, BC Children's Hospital Research Institute, Vancouver, Canada
| | - Jay Belsky
- Department of Human Ecology, University of California, California, Davis, USA
| | - Carolina de Weerth
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, The Netherlands
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17
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Canales A, Sastre J, Orduña JM, Spruit CM, Pérez-Castells J, Domínguez G, Bouwman KM, van der Woude R, Cañada FJ, Nycholat CM, Paulson JC, Boons GJ, Jiménez-Barbero J, de Vries RP. Revealing the Specificity of Human H1 Influenza A Viruses to Complex N-Glycans. JACS Au 2023; 3:868-878. [PMID: 37006776 PMCID: PMC10052259 DOI: 10.1021/jacsau.2c00664] [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] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 05/18/2023]
Abstract
Influenza virus infection remains a threat to human health since viral hemagglutinins are constantly drifting, escaping infection and vaccine-induced antibody responses. Viral hemagglutinins from different viruses display variability in glycan recognition. In this context, recent H3N2 viruses have specificity for α2,6 sialylated branched N-glycans with at least three N-acetyllactosamine units (tri-LacNAc). In this work, we combined glycan arrays and tissue binding analyses with nuclear magnetic resonance experiments to characterize the glycan specificity of a family of H1 variants, including the one responsible for the 2009 pandemic outbreak. We also analyzed one engineered H6N1 mutant to understand if the preference for tri-LacNAc motifs could be a general trend in human-type receptor-adapted viruses. In addition, we developed a new NMR approach to perform competition experiments between glycans with similar compositions and different lengths. Our results point out that pandemic H1 viruses differ from previous seasonal H1 viruses by a strict preference for a minimum of di-LacNAc structural motifs.
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Affiliation(s)
- Angeles Canales
- Department
of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Avd. Complutense s/n, Madrid 28040, Spain
| | - Javier Sastre
- Centro
de Investigaciones Biológicas Margarita Salas, CSIC, C/Ramiro de Maetzu 9, Madrid 28040, Spain
| | - Jose M. Orduña
- Department
of Chemistry and Biochemistry Facultad de Farmacia, Universidad San
Pablo-CEU, CEU Universities Urbanización
Montepríncipe, Boadilla del Monte, Madrid 28660, Spain
| | - Cindy M. Spruit
- Department
of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
| | - Javier Pérez-Castells
- Department
of Chemistry and Biochemistry Facultad de Farmacia, Universidad San
Pablo-CEU, CEU Universities Urbanización
Montepríncipe, Boadilla del Monte, Madrid 28660, Spain
| | - Gema Domínguez
- Department
of Chemistry and Biochemistry Facultad de Farmacia, Universidad San
Pablo-CEU, CEU Universities Urbanización
Montepríncipe, Boadilla del Monte, Madrid 28660, Spain
| | - Kim M. Bouwman
- Department
of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
| | - Roosmarijn van der Woude
- Department
of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
| | - Francisco Javier Cañada
- Centro
de Investigaciones Biológicas Margarita Salas, CSIC, C/Ramiro de Maetzu 9, Madrid 28040, Spain
- Centro
de Investigación Biomédica en Red-Enfermedades Respiratorias
(CIBERES), Instituto de Salud Carlos III, C/ Monforte de Lemos 3-5, Pabellón
11, Madrid 28029, Spain
| | - Corwin M. Nycholat
- Department
of Molecular Medicine, The Scripps Research
Institute, La Jolla, California 92037, United States
| | - James C. Paulson
- Department
of Molecular Medicine, The Scripps Research
Institute, La Jolla, California 92037, United States
| | - Geert-Jan Boons
- Department
of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend
Road, Athens, Georgia 30602, United States
| | - Jesús Jiménez-Barbero
- Centro
de Investigación Biomédica en Red-Enfermedades Respiratorias
(CIBERES), Instituto de Salud Carlos III, C/ Monforte de Lemos 3-5, Pabellón
11, Madrid 28029, Spain
- CIC
bioGUNE, Bizkaia Science and Technology
Park, Bilbao 48160, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao 48009, Spain
- Department
of Organic Chemistry, II Faculty of Science
and Technology University of the Basque Country, EHU-UPV, Leioa 48940, Spain
| | - Robert P. de Vries
- Department
of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
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18
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van Timmeren T, O'Doherty JP, Dzinalija N, de Wit S. Can the Brain Strategically Go on Automatic Pilot? A Functional Magnetic Resonance Imaging Study Investigating the Effect of If-Then Planning on Behavioral Flexibility. J Cogn Neurosci 2023; 35:957-975. [PMID: 36976901 DOI: 10.1162/jocn_a_01990] [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] [Indexed: 03/30/2023]
Abstract
People often have good intentions but fail to adhere to them. Implementation intentions, a form of strategic planning, can help people to close this intention-behavior gap. Their effectiveness has been proposed to depend on the mental formation of a stimulus-response association between a trigger and target behavior, thereby creating an "instant habit." If implementation intentions do indeed lead to reliance on habitual control, then this may come at the cost of reduced behavioral flexibility. Furthermore, we would expect a shift from recruitment of corticostriatal brain regions implicated in goal-directed control toward habit regions. To test these ideas, we performed a fMRI study in which participants received instrumental training supported by either implementation or goal intentions, followed by an outcome revaluation to test reliance on habitual versus goal-directed control. We found that implementation intentions led to increased efficiency early in training, as reflected by higher accuracy, faster RTs, and decreased anterior caudate engagement. However, implementation intentions did not reduce behavioral flexibility when goals changed during the test phase, nor did it affect the underlying corticostriatal pathways. In addition, this study showed that "slips of action" toward devalued outcomes are associated with reduced activity in brain regions implicated in goal-directed control (ventromedial prefrontal cortex and lateral orbitofrontal cortex) and increased activity of the fronto-parietal salience network (including the insula, dorsal anterior cingulate cortex, and SMA). In conclusion, our behavioral and neuroimaging findings suggest that strategic if-then planning does not lead to a shift from goal-directed toward habitual control.
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Affiliation(s)
- Tim van Timmeren
- University of Amsterdam, The Netherlands
- Utrecht University, The Netherlands
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19
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Tosserams A, Bloem BR, Ehgoetz Martens KA, Helmich RC, Kessels RPC, Shine JM, Taylor NL, Wainstein G, Lewis SJG, Nonnekes J. Modulating arousal to overcome gait impairments in Parkinson's disease: how the noradrenergic system may act as a double-edged sword. Transl Neurodegener 2023; 12:15. [PMID: 36967402 PMCID: PMC10040128 DOI: 10.1186/s40035-023-00347-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/28/2023] [Indexed: 03/28/2023] Open
Abstract
In stressful or anxiety-provoking situations, most people with Parkinson's disease (PD) experience a general worsening of motor symptoms, including their gait impairments. However, a proportion of patients actually report benefits from experiencing-or even purposely inducing-stressful or high-arousal situations. Using data from a large-scale international survey study among 4324 people with PD and gait impairments within the online Fox Insight (USA) and ParkinsonNEXT (NL) cohorts, we demonstrate that individuals with PD deploy an array of mental state alteration strategies to cope with their gait impairment. Crucially, these strategies differ along an axis of arousal-some act to heighten, whereas others diminish, overall sympathetic tone. Together, our observations suggest that arousal may act as a double-edged sword for gait control in PD. We propose a theoretical, neurobiological framework to explain why heightened arousal can have detrimental effects on the occurrence and severity of gait impairments in some individuals, while alleviating them in others. Specifically, we postulate that this seemingly contradictory phenomenon is explained by the inherent features of the ascending arousal system: namely, that arousal is related to task performance by an inverted u-shaped curve (the so-called Yerkes and Dodson relationship). We propose that the noradrenergic locus coeruleus plays an important role in modulating PD symptom severity and expression, by regulating arousal and by mediating network-level functional integration across the brain. The ability of the locus coeruleus to facilitate dynamic 'cross-talk' between distinct, otherwise largely segregated brain regions may facilitate the necessary cerebral compensation for gait impairments in PD. In the presence of suboptimal arousal, compensatory networks may be too segregated to allow for adequate compensation. Conversely, with supraoptimal arousal, increased cross-talk between competing inputs of these complementary networks may emerge and become dysfunctional. Because the locus coeruleus degenerates with disease progression, finetuning of this delicate balance becomes increasingly difficult, heightening the need for mental strategies to self-modulate arousal and facilitate shifting from a sub- or supraoptimal state of arousal to improve gait performance. Recognition of this underlying mechanism emphasises the importance of PD-specific rehabilitation strategies to alleviate gait disability.
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Affiliation(s)
- Anouk Tosserams
- Department of Neurology, Center of Expertise for Parkinson and Movement Disorders, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
- Department of Rehabilitation, Center of Expertise for Parkinson and Movement Disorders, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Bastiaan R Bloem
- Department of Neurology, Center of Expertise for Parkinson and Movement Disorders, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | | | - Rick C Helmich
- Department of Neurology, Center of Expertise for Parkinson and Movement Disorders, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Roy P C Kessels
- Department of Neuropsychology and Rehabilitation Psychology, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Medical Psychology and Radboudumc Alzheimer Center, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
- Vincent Van Gogh Institute for Psychiatry, Venray, The Netherlands
- Klimmendaal Rehabilitation Center, Arnhem, The Netherlands
| | - James M Shine
- Brain and Mind Centre, Parkinson's Disease Research Clinic, School of Medical Sciences, University of Sydney, Camperdown, NSW, Australia
- Centre for Complex Systems, The University of Sydney, Camperdown, NSW, Australia
| | - Natasha L Taylor
- Brain and Mind Centre, Parkinson's Disease Research Clinic, School of Medical Sciences, University of Sydney, Camperdown, NSW, Australia
| | - Gabriel Wainstein
- Brain and Mind Centre, Parkinson's Disease Research Clinic, School of Medical Sciences, University of Sydney, Camperdown, NSW, Australia
| | - Simon J G Lewis
- Brain and Mind Centre, Parkinson's Disease Research Clinic, School of Medical Sciences, University of Sydney, Camperdown, NSW, Australia
| | - Jorik Nonnekes
- Department of Rehabilitation, Center of Expertise for Parkinson and Movement Disorders, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, PO Box 9101, 6500 HB, Nijmegen, The Netherlands.
- Department of Rehabilitation, Sint Maartenskliniek, Nijmegen, The Netherlands.
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20
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Affiliation(s)
- Marleen Kunneman
- Medical Decision Making, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
- Knowledge and Evaluation Research Unit, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Ingeborg P M Griffioen
- Medical Decision Making, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
- Faculty of Industrial Design Engineering, Delft University of Technology, Delft, Zuid-Holland, The Netherlands
| | - Nanon H M Labrie
- Department of Language, Literature & Communication, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maria Kristiansen
- Department of Public Health & Center for Healthy Aging, University of Copenhagen, Kobenhavn, Denmark
| | - Victor M Montori
- Knowledge and Evaluation Research Unit, Mayo Clinic Rochester, Rochester, Minnesota, USA
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21
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Wachter GG, de Valk HAG. Cohort Succession in the Timing of Marriage Among the Children of Turkish and Moroccan Immigrants. Eur J Population 2022; 38:485-516. [PMID: 35966363 PMCID: PMC9363554 DOI: 10.1007/s10680-022-09616-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 03/21/2022] [Indexed: 11/26/2022]
Abstract
In this paper, we introduce cohort succession in the study of marriage behaviour among the children of immigrants. Research among majority populations in developed countries has shown an overall increase in age at first marriage. Yet whether a similar change is occurring across successive cohorts of children of immigrants is unknown but relevant given the growing shares of children of immigrants in developed countries. Using full population register data from the Netherlands, we test the theoretical assumptions of cohort succession with event history models for the timing of first marriage across entire Turkish and Moroccan second-generation birth cohorts. In line with the expectations based on diffusion theories, we find clear evidence that younger birth cohorts postpone marriage. Moreover, the marriage timing of especially the Turkish second generation and Dutch majority population converges across birth cohorts. Our findings call for a more differentiated study of the children of immigrants acknowledging diffusion of new demographic behaviour among these groups.
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Affiliation(s)
- Gusta G. Wachter
- Netherlands Interdisciplinary Demographic Institute (NIDI)/KNAW/University of Groningen, The Hague, The Netherlands
| | - Helga A. G. de Valk
- Netherlands Interdisciplinary Demographic Institute (NIDI)/KNAW/University of Groningen, The Hague, The Netherlands
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22
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Beenker WAG, Hoeksma J, den Hertog J. Gregatins, a Group of Related Fungal Secondary Metabolites, Inhibit Aspects of Quorum Sensing in Gram-Negative Bacteria. Front Microbiol 2022; 13:934235. [PMID: 35865924 PMCID: PMC9296082 DOI: 10.3389/fmicb.2022.934235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 06/02/2022] [Indexed: 12/11/2022] Open
Abstract
Quorum sensing (QS) is a process that regulates gene expression based on cell density. In bacteria, QS facilitates collaboration and controls a large number of pathways, including biofilm formation and virulence factor production, which lead to lower sensitivity to antibiotics and higher toxicity in the host, respectively. Inhibition of QS is a promising strategy to combat bacterial infections. In this study, we tested the potential of secondary metabolites from fungi to inhibit bacterial QS using a library derived from more than ten thousand different fungal strains. We used the reporter bacterium, Chromobacterium violaceum, and identified 39 fungal strains that produced QS inhibitor activity. These strains expressed two QS inhibitors that had been described before and eight QS inhibitors that had not been described before. Further testing for QS inhibitor activity against the opportunistic pathogen Pseudomonas aeruginosa led to the identification of gregatins as an interesting family of compounds with QS inhibitor activity. Although various gregatins inhibited QS in P. aeruginosa, these gregatins did not inhibit virulence factor production and biofilm formation. We conclude that gregatins inhibit some, but not all aspects of QS.
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Affiliation(s)
- Wouter A. G. Beenker
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
| | - Jelmer Hoeksma
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
| | - Jeroen den Hertog
- Hubrecht Institute-KNAW and University Medical Center Utrecht, Utrecht, Netherlands
- Institute Biology Leiden, Leiden University, Leiden, Netherlands
- *Correspondence: Jeroen den Hertog
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23
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Quezada-Pinedo HG, Cassel F, Muckenthaler MU, Gassmann M, Huicho L, Reiss IK, Duijts L, Gaillard R, Vermeulen MJ. Ethnic differences in adverse iron status in early pregnancy: a cross-sectional population-based study. J Nutr Sci 2022; 11:e39. [PMID: 35720171 PMCID: PMC9161035 DOI: 10.1017/jns.2022.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 11/15/2022] Open
Abstract
We studied ethnic differences in terms of iron status during pregnancy between Dutch women and other ethnicities and explore to what extent these differences can be explained by environmental factors. This cross-sectional population-based study (2002-2006) was embedded in the Generation R study and included a total of 4737 pregnant women from seven ethnic groups (Dutch, Turkish, Moroccan, Cape Verdean, Surinamese-Hindustani, Surinamese-Creole and Antillean). Ethnicity was defined according to the Dutch classification of ethnic background. Ferritin, iron and transferrin were measured in early pregnancy. The overall prevalence of iron deficiency was 7 %, ranging from 4 % in both Dutch and Surinamese-Creoles, to 18 % in Turkish, Moroccan and Surinamese-Hindustani women. Iron overload was most prevalent in Surinamese-Creole (11 %) and Dutch (9 %) women. Socioeconomic factors accounted for 5-36 % of the differences. Income was the strongest socioeconomic factor in the Cape Verdean and Surinamese-Hindustani groups and parity for the Turkish and Moroccan groups. Lifestyle determinants accounted for 8-14 % of the differences. In all groups, the strongest lifestyle factor was folic acid use, being associated with higher iron status. In conclusion, in our population, both iron deficiency and iron overload were common in early pregnancy. Our data suggest that ethnic differences in terms of socioeconomic and lifestyle factors only partly drive the large ethnic differences in iron status. Our data support the development of more specific prevention programmes based on further exploration of socioeconomic inequities, modifiable risk and genetic factors in specific ethnic subgroups, as well as the need for individual screening of iron status before supplementation.
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Affiliation(s)
- Hugo G. Quezada-Pinedo
- The Generation R Study Group, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Florian Cassel
- Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Martina U. Muckenthaler
- Department of Pediatric Hematology, Oncology and Immunology, University Hospital Heidelberg, Heidelberg, Germany
- Molecular Medicine Partnership Unit, University Hospital Heidelberg, Heidelberg, Germany
| | - Max Gassmann
- Institute of Veterinary Physiology, Vetsuisse Faculty and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
- School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Luis Huicho
- School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru
- Centro de Investigación en Salud Materna e Infantil, Centro de Investigación para el Desarrollo Integral y Sostenible, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Irwin K. Reiss
- The Generation R Study Group, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Liesbeth Duijts
- Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Romy Gaillard
- The Generation R Study Group, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Marijn J. Vermeulen
- The Generation R Study Group, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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24
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Overbeek MM, Koren-Karie N, de Schipper JC, van Delft I, Schuengel C. Quality of Mother-child Dialogue About Emotional Events, Coping and Posttraumatic Stress Symptoms Among Children Exposed to Interpersonal Trauma. J Child Adolesc Trauma 2022; 15:201-208. [PMID: 35600532 PMCID: PMC9120269 DOI: 10.1007/s40653-021-00381-x] [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] [Figures] [Subscribe] [Scholar Register] [Accepted: 06/24/2021] [Indexed: 06/15/2023]
Abstract
Children exposed to traumatic events are at increased risk for developing symptoms of a Post-Traumatic Stress Disorder. Children often discuss emotional, and therefore also traumatic, events in their lives with their parents, and the quality of these discussions can facilitate coping and further development. The study aim was 1) to explore whether the association between the quality of dialogue between mothers and children about emotional events and children's posttraumatic stress symptoms (PTSS) might be indirectly linked through children's adaptive coping skills, and 2) whether this association differed when discussing different negative emotions. 169 mother-child dyads with interpersonal trauma-exposure (86% domestic violence, 14% mother and/or child sexually abused) participated in the Autobiographical Emotional Events Dialogue (AEED). Quality of mother-child emotion dialogue, captured in maternal sensitive guidance and child cooperation, and approach-oriented coping were coded from transcripts. PTSS was measured with the Child Behavior Checklist. Lower quality of mother-child emotion dialogue was associated with less approach-oriented coping and more symptoms of posttraumatic stress. There was an indirect effect of approach-oriented coping with angry feelings linking quality of mother-child emotion dialogue and child PTSS. Children's symptoms of posttraumatic stress were reflected in the quality of mother-child dialogues about traumatic and other emotional events. Findings support that dialogues about emotional events may be a promising target for intervention with children exposed to trauma.
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Affiliation(s)
- Mathilde M. Overbeek
- Section of Clinical Child and Family Studies, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | | | - J. Clasien de Schipper
- Section of Clinical Child and Family Studies, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Ivanka van Delft
- Section of Clinical Child and Family Studies, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Carlo Schuengel
- Section of Clinical Child and Family Studies, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
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25
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Boot EM, van de Camp SAJH, Maaijwee NA, Arntz RM, Kessels RPC, de Leeuw FE, Tuladhar AM. Neuroimaging Parameters Are Not Associated With Chronic Post-stroke Fatigue in Young Stroke Patients. Front Neurol 2022; 13:831357. [PMID: 35572922 PMCID: PMC9096084 DOI: 10.3389/fneur.2022.831357] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 04/04/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction Post-stroke fatigue is frequently present in young adults, but its underlying mechanism is still unclear. The aim of the study was to investigate the association between lesion location, network efficiency and chronic post-stroke fatigue based on voxel-based lesion-symptom mapping and structural network connectivity analysis. Patients and Methods One hundred and thirty five young patients, aged 18–50 years, with a first-ever transient ischemic attack or cerebral infarction from the Follow-Up of Transient ischemic attack and stroke patients and Unelucidated Risk factor Evaluation (FUTURE) study, underwent 1.5T MRI and were assessed for fatigue using the self-report Checklist Individual Strength. Stroke lesions were manually segmented, and structural network efficiency was calculated using the diffusion MRI-based brain networks and graph theory for each patient. Univariate and multivariate analyses was performed to study the associations between MRI parameters and chronic post-stroke fatigue. In addition, we used voxel-based lesion-symptom mapping to analyze the relationship between the lesion location and chronic post-stroke fatigue. Results Mean age at index event was 39.0 years (SD ± 8.2), and mean follow-up duration was 11.0 years (SD ± 8.0). 50 patients (37%) had post-stroke fatigue. Voxel-based lesion-symptom mapping showed no significant relation between stroke lesions and the presence of chronic post-stroke fatigue. Furthermore, there were no significant associations between the lesion size or network efficiency, and the presence of chronic post-stroke fatigue. Discussion We did not find any association between stroke characteristics (lesion location and size) and chronic post-stroke fatigue (CIS20-R), nor associations between structural brain network connectivity and post-stroke fatigue on the long term in young stroke patients.
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Affiliation(s)
- Esther M. Boot
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Sanne A. J. H. van de Camp
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Noortje A. Maaijwee
- Department of Neurology and Neurorehabilitation, Luzerner Kantonsspital Neurocentre, Luzern, Switzerland
| | - Renate M. Arntz
- Department of Neurology, Medisch Spectrum Twente, Enschede, Netherlands
| | - Roy P. C. Kessels
- Department of Psychology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, Netherlands
- Department of Medical Psychology and Radboudumc Alzheimer's Centre, Radboud University Medical Centre, Nijmegen, Netherlands
- Vincent van Gogh Institute for Psychiatry, Venray, Netherlands
| | - Frank-Erik de Leeuw
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Anil M. Tuladhar
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Centre, Nijmegen, Netherlands
- *Correspondence: Anil M. Tuladhar
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Schel AM, Bono A, Aychet J, Pika S, Lemasson A. Intentional gestural communication amongst red-capped mangabeys (Cercocebus torquatus). Anim Cogn 2022; 25:1313-1330. [PMID: 35362785 PMCID: PMC9617956 DOI: 10.1007/s10071-022-01615-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 01/26/2022] [Accepted: 03/16/2022] [Indexed: 11/29/2022]
Abstract
Apes, human’s closest living relatives, are renowned for their intentional and highly flexible use of gestural communication. In stark contrast, evidence for flexible and intentional gestural communication in monkeys is scarce. Here, we investigated the intentionality and flexibility of spontaneous gesture use in red-capped mangabeys (Cercocebus torquatus). We applied established methods used in ape gesture research to analyse whether the body acts produced by a total of 17 individuals living in three different groups in captivity qualified as intentionally produced gesture instances. Results showed that signallers showed all hallmarks of intentionality during the production of 20 out of a total of 21 different types of body acts. These were only produced in the presence of other individuals, and the monkeys showed audience checking, sensitivity to the attentional states of recipients, adjustment of signal modality, and response waiting relative to their production. Moreover, in case of communication failure, the monkeys showed goal persistence, and regarding the production contexts they showed some signs of means–ends dissociation. Therefore, these monkeys are capable of flexible and intentional gestural communication and use this to communicate with conspecifics. Our results corroborate recent findings showing that intentional gestural communication was already present in the monkey lineage of catarrhine primates. We discuss our results in light of the comparative approach towards human language evolution and highlight our finding that these monkeys also showed flexible and intentional use of four ‘free’ manual gesture types.
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Affiliation(s)
- Anne Marijke Schel
- Animal Behaviour and Cognition, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands.
| | - Axelle Bono
- Université de Rennes, Normandie Université, CNRS, EthoS (Éthologie Animale et Humaine), UMR 6552, 35000, Rennes, France
- Department of Ecology and Evolution, Universite de Lausanne, Biophore, 1015, Lausanne, Switzerland
| | - Juliette Aychet
- Université de Rennes, Normandie Université, CNRS, EthoS (Éthologie Animale et Humaine), UMR 6552, 35000, Rennes, France
| | - Simone Pika
- Comparative BioCognition, Institute of Cognitive Science, University of Osnabrück, 49076, Osnabrück, Germany
| | - Alban Lemasson
- Université de Rennes, Normandie Université, CNRS, EthoS (Éthologie Animale et Humaine), UMR 6552, 35000, Rennes, France
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27
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Vacaru SV, Beijers R, de Weerth C. Internalizing symptoms and family functioning predict adolescent depressive symptoms during COVID-19: A longitudinal study in a community sample. PLoS One 2022; 17:e0264962. [PMID: 35303003 PMCID: PMC8932580 DOI: 10.1371/journal.pone.0264962] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 02/18/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic and lockdown pose a threat for adolescents' mental health, especially for those with an earlier vulnerability. Accordingly, these adolescents may need increased support from family and friends. This study investigated whether family functioning and peer connectedness protects adolescents with earlier internalizing or externalizing symptoms from increased depressive symptoms during the first Dutch COVID-19 lockdown in a low-risk community sample. METHODS This sample comprised 115 adolescents (Mage = 13.06; 44% girls) and their parents (N = 111) and is part of an ongoing prospective study on child development. Internalizing and externalizing symptoms were self-reported a year before the COVID-19 lockdown. In an online survey during the first Dutch lockdown (April-May 2020), adolescents reported depressive symptoms and perceived peer connectedness, and parents reported family functioning. RESULTS Twenty-four percent of adolescents reported clinically relevant symptoms of depression during the first COVID-19 lockdown. Depressive symptoms were significantly predicted by earlier internalizing, but not externalizing symptoms. Furthermore, higher quality of family functioning, but not peer connectedness, predicted fewer adolescent depressive symptoms. Family functioning and peer connectedness did not moderate the link between pre-existing internalizing symptoms and later depressive symptoms. CONCLUSIONS In a low-risk community sample, one-in-four adolescents reported clinically relevant depressive symptoms at the first COVID-19 lockdown. Higher earlier internalizing symptoms and lower quality of family functioning increased risks. These results indicate that even in low-risk samples, a substantial group of adolescents and their families are vulnerable during times of crisis.
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Affiliation(s)
- Stefania V. Vacaru
- Donders Institute for Brain, Cognition & Behavior, Radboud University Medical Center, Nijmegen, Netherlands
- * E-mail:
| | - Roseriet Beijers
- Donders Institute for Brain, Cognition & Behavior, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud University, Nijmegen, The Netherlands
| | - Carolina de Weerth
- Donders Institute for Brain, Cognition & Behavior, Radboud University Medical Center, Nijmegen, Netherlands
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Tomris I, Bouwman KM, Adolfs Y, Noack D, van der Woude R, Kerster G, Herfst S, Sanders RW, van Gils MJ, Boons GJ, Haagmans BL, Pasterkamp RJ, Rockx B, de Vries RP. Distinct spatial arrangements of ACE2 and TMPRSS2 expression in Syrian hamster lung lobes dictates SARS-CoV-2 infection patterns. PLoS Pathog 2022; 18:e1010340. [PMID: 35255100 PMCID: PMC8930000 DOI: 10.1371/journal.ppat.1010340] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 03/17/2022] [Accepted: 02/04/2022] [Indexed: 12/12/2022] Open
Abstract
SARS-CoV-2 attaches to angiotensin-converting enzyme 2 (ACE2) to gain entry into cells after which the spike protein is cleaved by the transmembrane serine protease 2 (TMPRSS2) to facilitate viral-host membrane fusion. ACE2 and TMPRSS2 expression profiles have been analyzed at the genomic, transcriptomic, and single-cell RNAseq levels. However, transcriptomic data and actual protein validation convey conflicting information regarding the distribution of the biologically relevant protein receptor in whole tissues. To describe the organ-level architecture of receptor expression, related to the ability of ACE2 and TMPRSS2 to mediate infectivity, we performed a volumetric analysis of whole Syrian hamster lung lobes. Lung tissue of infected and control animals was stained using antibodies against ACE2 and TMPRSS2, combined with SARS-CoV-2 nucleoprotein staining. This was followed by light-sheet microscopy imaging to visualize their expression and related infection patterns. The data demonstrate that infection is restricted to sites containing both ACE2 and TMPRSS2, the latter is expressed in the primary and secondary bronchi whereas ACE2 is predominantly observed in the bronchioles and alveoli. Conversely, infection completely overlaps where ACE2 and TMPRSS2 co-localize in the tertiary bronchi, bronchioles, and alveoli.
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Affiliation(s)
- Ilhan Tomris
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Kim M. Bouwman
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Youri Adolfs
- Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Danny Noack
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Roosmarijn van der Woude
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Gius Kerster
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Sander Herfst
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Rogier W. Sanders
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
- Department of Microbiology and Immunology, Weill Medical College of Cornell University, Ney York City, New York, United States of America
| | - Marit J. van Gils
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Geert-Jan Boons
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
- Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht, The Netherlands
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, United States of America
- Department of Chemistry, University of Georgia, Athens, Georgia, United States of America
| | - Bart L. Haagmans
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - R. Jeroen Pasterkamp
- Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Barry Rockx
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Robert P. de Vries
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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29
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de Jong PW. Patterns and Drivers of Emigration of the Turkish Second Generation in the Netherlands. Eur J Population 2022; 38:15-36. [PMID: 35370530 PMCID: PMC8924341 DOI: 10.1007/s10680-021-09598-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 10/11/2021] [Indexed: 11/30/2022]
Abstract
Using unique longitudinal data from the Dutch population registers, this study investigates the patterns and drivers of emigration of the Turkish second generation born in the Netherlands between 1983 and 1992. Around 13% of the Turkish second generation in the research population emigrated during early adulthood, as compared to 6% of their peers without immigrant parents. Half of the Turkish second-generation emigrants who reported their destination country moved to Turkey, while the other half moved to other destinations, especially the Dutch neighbouring countries. Among the Turkish second generation, unemployment over the previous year was found to increase the likelihood of emigration for individuals with low or middle levels of education, whereas no support was found that higher educated individuals (either employed or unemployed) are more likely to emigrate. However, if high-skilled unemployed individuals of the Turkish second generation emigrated, they appeared more likely to select Turkey as their destination as compared to other (or unknown) destinations. International migration experiences during childhood, living at the parental home, and residing in neighbourhoods with a high share of co-ethnics were also associated with a higher chance of emigration to Turkey, whereas living in the Dutch border regions was associated with a higher chance of emigration to other destinations. Together, the findings indicate that the Turkish second generation has a higher chance to emigrate than their peers without immigrant parents, and that mechanisms specific to the second generation apply to the migration behaviour of this group.
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Affiliation(s)
- Petra Wieke de Jong
- Netherlands Interdisciplinary Demographic Institute (NIDI)-KNAW/University of Groningen, The Hague, The Netherlands
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30
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Abstract
Molecular photoswitches enable dynamic control of processes with high spatiotemporal precision, using light as external stimulus, and hence are ideal tools for different research areas spanning from chemical biology to smart materials. Photoswitches are typically organic molecules that feature extended aromatic systems to make them responsive to (visible) light. However, this renders them inherently lipophilic, while water-solubility is of crucial importance to apply photoswitchable organic molecules in biological systems, like in the rapidly emerging field of photopharmacology. Several strategies for solubilizing organic molecules in water are known, but there are not yet clear rules for applying them to photoswitchable molecules. Importantly, rendering photoswitches water-soluble has a serious impact on both their photophysical and biological properties, which must be taken into consideration when designing new systems. Altogether, these aspects pose considerable challenges for successfully applying molecular photoswitches in aqueous systems, and in particular in biologically relevant media. In this review, we focus on fully water-soluble photoswitches, such as those used in biological environments, in both in vitro and in vivo studies. We discuss the design principles and prospects for water-soluble photoswitches to inspire and enable their future applications.
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Affiliation(s)
- Jana Volarić
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | - Wiktor Szymanski
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Department of Radiology, Medical Imaging Center, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Nadja A Simeth
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Institute for Organic and Biomolecular Chemistry, University of Göttingen, Tammannstr. 2, 37077 Göttingen, Germany
| | - Ben L Feringa
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
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31
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Ververs FA, Engelen SE, Nuboer R, Vastert B, van der Ent CK, Van't Land B, Garssen J, Monaco C, Boes M, Schipper HS. Immunometabolic factors in adolescent chronic disease are associated with Th1 skewing of invariant Natural Killer T cells. Sci Rep 2021; 11:20082. [PMID: 34635725 PMCID: PMC8505552 DOI: 10.1038/s41598-021-99580-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 09/20/2021] [Indexed: 11/17/2022] Open
Abstract
Invariant Natural Killer T (iNKT) cells respond to the ligation of lipid antigen-CD1d complexes via their T-cell receptor and are implicated in various immunometabolic diseases. We considered that immunometabolic factors might affect iNKT cell function. To this end, we investigated iNKT cell phenotype and function in a cohort of adolescents with chronic disease and immunometabolic abnormalities. We analyzed peripheral blood iNKT cells of adolescents with cystic fibrosis (CF, n = 24), corrected coarctation of the aorta (CoA, n = 25), juvenile idiopathic arthritis (JIA, n = 20), obesity (OB, n = 20), and corrected atrial septal defect (ASD, n = 25) as controls. To study transcriptional differences, we performed RNA sequencing on a subset of obese patients and controls. Finally, we performed standardized co-culture experiments using patient plasma, to investigate the effect of plasma factors on iNKT cell function. We found comparable iNKT cell numbers across patient groups, except for reduced iNKT cell numbers in JIA patients. Upon ex-vivo activation, we observed enhanced IFN-γ/IL-4 cytokine ratios in iNKT cells of obese adolescents versus controls. The Th1-skewed iNKT cell cytokine profile of obese adolescents was not explained by a distinct transcriptional profile of the iNKT cells. Co-culture experiments with patient plasma revealed that across all patient groups, obesity-associated plasma factors including LDL-cholesterol, leptin, and fatty-acid binding protein 4 (FABP4) coincided with higher IFN-γ production, whereas high HDL-cholesterol and insulin sensitivity (QUICKI) coincided with higher IL-4 production. LDL and HDL supplementation in co-culture studies confirmed the effects of lipoproteins on iNKT cell cytokine production. These results suggest that circulating immunometabolic factors such as lipoproteins may be involved in Th1 skewing of the iNKT cell cytokine response in immunometabolic disease.
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Affiliation(s)
- Francesca A Ververs
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Roos Nuboer
- Department of Pediatrics, Meander Medical Center Amersfoort, Amersfoort, The Netherlands
| | - Bas Vastert
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Pediatric Rheumatology and Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cornelis K van der Ent
- Department of Pediatric Pulmonology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Belinda Van't Land
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Center of Excellence Immunology, Danone Nutricia Research, Utrecht, The Netherlands
| | - Johan Garssen
- Center of Excellence Immunology, Danone Nutricia Research, Utrecht, The Netherlands
- Division Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Beta Faculty, Utrecht University, Utrecht, The Netherlands
| | - Claudia Monaco
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Marianne Boes
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Pediatric Rheumatology and Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Henk S Schipper
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands.
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK.
- Department of Pediatric Cardiology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.
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32
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Liu L, Chopra P, Li X, Bouwman KM, Tompkins SM, Wolfert MA, de Vries RP, Boons GJ. Heparan Sulfate Proteoglycans as Attachment Factor for SARS-CoV-2. ACS Cent Sci 2021; 7:1009-1018. [PMID: 34235261 PMCID: PMC8227597 DOI: 10.1021/acscentsci.1c00010] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Indexed: 05/17/2023]
Abstract
Severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) is causing an unprecedented global pandemic demanding the urgent development of therapeutic strategies. Microarray binding experiments, using an extensive heparan sulfate (HS) oligosaccharide library, showed that the receptor binding domain (RBD) of the spike of SARS-CoV-2 can bind HS in a length- and sequence-dependent manner. A hexasaccharide composed of IdoA2S-GlcNS6S repeating units was identified as the minimal binding epitope. Surface plasmon resonance showed the SARS-CoV-2 spike protein binds with a much higher affinity to heparin (K D = 55 nM) compared to the RBD (K D = 1 μM) alone. It was also found that heparin does not interfere in angiotensin-converting enzyme 2 (ACE2) binding or proteolytic processing of the spike. However, exogenous administered heparin or a highly sulfated HS oligosaccharide inhibited RBD binding to cells. Furthermore, an enzymatic removal of HS proteoglycan from physiological relevant tissue resulted in a loss of RBD binding. The data support a model in which HS functions as the point of initial attachment allowing the virus to travel through the glycocalyx by low-affinity high-avidity interactions to reach the cell membrane, where it can engage with ACE2 for cell entry. Microarray binding experiments showed that ACE2 and HS can simultaneously engage with the RBD, and it is likely no dissociation between HS and RBD is required for binding to ACE2. The results highlight the potential of using HS oligosaccharides as a starting material for therapeutic agent development.
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Affiliation(s)
- Lin Liu
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, 30602 Athens, Georgia, United
States
| | - Pradeep Chopra
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, 30602 Athens, Georgia, United
States
| | - Xiuru Li
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, 30602 Athens, Georgia, United
States
| | - Kim M. Bouwman
- Department of Chemical Biology
and Drug Discovery, Utrecht Institute
for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - S. Mark Tompkins
- Center
for Vaccines and Immunology, University
of Georgia, 30602 Athens, Georgia, United States
| | - Margreet A. Wolfert
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, 30602 Athens, Georgia, United
States
- Department of Chemical Biology
and Drug Discovery, Utrecht Institute
for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Robert P. de Vries
- Department of Chemical Biology
and Drug Discovery, Utrecht Institute
for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Geert-Jan Boons
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, 30602 Athens, Georgia, United
States
- Department of Chemical Biology
and Drug Discovery, Utrecht Institute
for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
- Department of Chemistry, University of
Georgia, 30602 Athens, Georgia, United States
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33
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Vtyurina N, Åberg C, Salvati A. Imaging of nanoparticle uptake and kinetics of intracellular trafficking in individual cells. Nanoscale 2021; 13:10436-10446. [PMID: 34076024 PMCID: PMC8211015 DOI: 10.1039/d1nr00901j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 05/24/2021] [Indexed: 05/02/2023]
Abstract
Live cell imaging is a powerful tool to understand how nano-sized objects, such as the drug carriers used for nanomedicine applications, are taken up and trafficked by cells. Here we visualized human HeLa cells as they took up and trafficked nanoparticles of different sizes and quantified nanoparticle colocalization with different fluorescently-labelled intracellular compartments over time. This allowed us to obtain kinetic profiles of nanoparticle transport towards the lysosomes in individual cells. With a simple theoretical model, we determined the typical departure time of nanoparticles from the cell membrane and typical lysosome arrival time. We compared these kinetics parameters for nanoparticles of different sizes and determined how they vary in individual cells. We also performed a similar analysis for early endocytic compartments through which nanoparticles transit and discuss challenges in quantifying the colocalization in this case. The results show a high variability in intracellular trafficking kinetics between individual cells. Additionally, they help us to understand how nanoparticle properties affect their cellular uptake and intracellular distribution kinetics.
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Affiliation(s)
- Natalia Vtyurina
- Department of Nanomedicine & Drug Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, the Netherlands.
| | - Christoffer Åberg
- Department of Pharmaceutical Analysis, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, the Netherlands.
| | - Anna Salvati
- Department of Nanomedicine & Drug Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, the Netherlands.
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34
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Gu F, Wang S, Beijers R, de Weerth C, Schols HA. Structure-Specific and Individual-Dependent Metabolization of Human Milk Oligosaccharides in Infants: A Longitudinal Birth Cohort Study. J Agric Food Chem 2021; 69:6186-6199. [PMID: 34032401 PMCID: PMC8193636 DOI: 10.1021/acs.jafc.0c07484] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 04/09/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
To follow human milk oligosaccharide (HMO) biosynthesis and in vivometabolization, mother milk and infant feces from 68 mother-infant dyads at 2, 6, and 12 weeks postpartum were analyzed, with 18 major HMOs quantitated. Fucosylated and neutral core HMO levels in milk were dependent on mothers' Lewis/Secretor status, whereas most sialylated HMO levels were independent. Infant fecal excretion of HMOs gradually declined with age, especially for neutral core structures. Although decreasing in absolute concentrations in milk during lactation, the relative abundance of total fucosylated HMOs increased in both milk and feces. Mono-fucosylated HMOs were more consumed than those decorated with two fucose moieties. More (α2-3)-sialylated HMOs were degraded than (α2-6)-sialylated HMOs. The transition speed of HMO metabolization from nonspecific or structure-specific consumption stage to the complete consumption stage was individual-dependent. Variation was associated with mode and place of delivery, where caesarean section or early exposure to hospital environment delayed the transition.
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Affiliation(s)
- Fangjie Gu
- Laboratory
of Food Chemistry, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Shuang Wang
- Laboratory
of Food Chemistry, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Roseriet Beijers
- Department
of Developmental Psychology, Behavioral Science Institute, Radboud University, P.O. Box 9104, 6500 HE Nijmegen, The Netherlands
- Department
of Cognitive Neuroscience, Donders Institute for Brain, Cognition
and Behavior, Radboud University Medical
Center, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Carolina de Weerth
- Department
of Cognitive Neuroscience, Donders Institute for Brain, Cognition
and Behavior, Radboud University Medical
Center, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Henk A. Schols
- Laboratory
of Food Chemistry, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
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35
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van der Putten C, Buskermolen ABC, Werner M, Brouwer HFM, Bartels PAA, Dankers PYW, Bouten CVC, Kurniawan NA. Protein Micropatterning in 2.5D: An Approach to Investigate Cellular Responses in Multi-Cue Environments. ACS Appl Mater Interfaces 2021; 13:25589-25598. [PMID: 34032413 PMCID: PMC8193632 DOI: 10.1021/acsami.1c01984] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 05/12/2021] [Indexed: 05/22/2023]
Abstract
The extracellular microenvironment is an important regulator of cell functions. Numerous structural cues present in the cellular microenvironment, such as ligand distribution and substrate topography, have been shown to influence cell behavior. However, the roles of these cues are often studied individually using simplified, single-cue platforms that lack the complexity of the three-dimensional, multi-cue environment cells encounter in vivo. Developing ways to bridge this gap, while still allowing mechanistic investigation into the cellular response, represents a critical step to advance the field. Here, we present a new approach to address this need by combining optics-based protein patterning and lithography-based substrate microfabrication, which enables high-throughput investigation of complex cellular environments. Using a contactless and maskless UV-projection system, we created patterns of extracellular proteins (resembling contact-guidance cues) on a two-and-a-half-dimensional (2.5D) cell culture chip containing a library of well-defined microstructures (resembling topographical cues). As a first step, we optimized experimental parameters of the patterning protocol for the patterning of protein matrixes on planar and non-planar (2.5D cell culture chip) substrates and tested the technique with adherent cells (human bone marrow stromal cells). Next, we fine-tuned protein incubation conditions for two different vascular-derived human cell types (myofibroblasts and umbilical vein endothelial cells) and quantified the orientation response of these cells on the 2.5D, physiologically relevant multi-cue environments. On concave, patterned structures (curvatures between κ = 1/2500 and κ = 1/125 μm-1), both cell types predominantly oriented in the direction of the contact-guidance pattern. In contrast, for human myofibroblasts on micropatterned convex substrates with higher curvatures (κ ≥ 1/1000 μm-1), the majority of cells aligned along the longitudinal direction of the 2.5D features, indicating that these cells followed the structural cues from the substrate curvature instead. These findings exemplify the potential of this approach for systematic investigation of cellular responses to multiple microenvironmental cues.
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Affiliation(s)
- Cas van der Putten
- Department
of Biomedical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Antonetta B. C. Buskermolen
- Department
of Biomedical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Maike Werner
- Department
of Biomedical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Hannah F. M. Brouwer
- Department
of Biomedical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Paul A. A. Bartels
- Department
of Biomedical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Patricia Y. W. Dankers
- Department
of Biomedical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Carlijn V. C. Bouten
- Department
of Biomedical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Nicholas A. Kurniawan
- Department
of Biomedical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- . Phone: +31-40-2472347
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36
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Huertas J, Schöler HR, Cojocaru V. Histone tails cooperate to control the breathing of genomic nucleosomes. PLoS Comput Biol 2021; 17:e1009013. [PMID: 34081696 PMCID: PMC8174689 DOI: 10.1371/journal.pcbi.1009013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 04/28/2021] [Indexed: 11/19/2022] Open
Abstract
Genomic DNA is packaged in chromatin, a dynamic fiber variable in size and compaction. In chromatin, repeating nucleosome units wrap 145–147 DNA basepairs around histone proteins. Genetic and epigenetic regulation of genes relies on structural transitions in chromatin which are driven by intra- and inter-nucleosome dynamics and modulated by chemical modifications of the unstructured terminal tails of histones. Here we demonstrate how the interplay between histone H3 and H2A tails control ample nucleosome breathing motions. We monitored large openings of two genomic nucleosomes, and only moderate breathing of an engineered nucleosome in atomistic molecular simulations amounting to 24 μs. Transitions between open and closed nucleosome conformations were mediated by the displacement and changes in compaction of the two histone tails. These motions involved changes in the DNA interaction profiles of clusters of epigenetic regulatory aminoacids in the tails. Removing the histone tails resulted in a large increase of the amplitude of nucleosome breathing but did not change the sequence dependent pattern of the motions. Histone tail modulated nucleosome breathing is a key mechanism of chromatin dynamics with important implications for epigenetic regulation. In the cell, the DNA is packed in chromatin. Chromatin is a highly dynamic fiber structure made of arrays of nucleosomes with different degrees of compaction. Each nucleosome has 145–147 basepairs of DNA wrapped around a protein octamer made of four unique histone proteins. Each histone is present twice and has a structured part and one or two disordered terminal tails. The regulation of gene expression in the cell and during cellular transitions depends on dynamic changes in chromatin structure. Chromatin dynamics are modulated by intra and inter nucleosome motions and by posttranslational chemical modifications of the histone tails. Here we reveal how histone tails control the intra nucleosome dynamics at atomic resolution. From extensive sampling of nucleosome dynamics in atomistic molecular simulations, we show that genomic nucleosomes breath more extensively than engineered ones and we describe how two histone tails cooperate to control nucleosome breathing through interactions between clusters of positively charged residues and the DNA. Nucleosome conformations with different degrees of opening are associated with different conformations, positions, and DNA interaction patterns of the tails. With this mechanism, we contribute to the understanding of chromatin dynamics at atomic resolution.
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Affiliation(s)
- Jan Huertas
- In Silico Biomolecular Structure and Dynamics Group, Hubrecht Institute, Utrecht, The Netherlands
- Department of Cellular and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
- Center for Multiscale Theory and Computation, Westfälische Wilhelms University, Münster, Germany
| | - Hans Robert Schöler
- Department of Cellular and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
- Medical Faculty, University of Münster, Münster, Germany
| | - Vlad Cojocaru
- In Silico Biomolecular Structure and Dynamics Group, Hubrecht Institute, Utrecht, The Netherlands
- Department of Cellular and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
- Center for Multiscale Theory and Computation, Westfälische Wilhelms University, Münster, Germany
- * E-mail: ,
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van Dijk JA, Fracasso A, Petridou N, Dumoulin SO. Validating Linear Systems Analysis for Laminar fMRI: Temporal Additivity for Stimulus Duration Manipulations. Brain Topogr 2021; 34:88-101. [PMID: 33210193 PMCID: PMC7803719 DOI: 10.1007/s10548-020-00808-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 11/05/2020] [Indexed: 11/26/2022]
Abstract
Advancements in ultra-high field (7 T and higher) magnetic resonance imaging (MRI) scanners have made it possible to investigate both the structure and function of the human brain at a sub-millimeter scale. As neuronal feedforward and feedback information arrives in different layers, sub-millimeter functional MRI has the potential to uncover information processing between cortical micro-circuits across cortical depth, i.e. laminar fMRI. For nearly all conventional fMRI analyses, the main assumption is that the relationship between local neuronal activity and the blood oxygenation level dependent (BOLD) signal adheres to the principles of linear systems theory. For laminar fMRI, however, directional blood pooling across cortical depth stemming from the anatomy of the cortical vasculature, potentially violates these linear system assumptions, thereby complicating analysis and interpretation. Here we assess whether the temporal additivity requirement of linear systems theory holds for laminar fMRI. We measured responses elicited by viewing stimuli presented for different durations and evaluated how well the responses to shorter durations predicted those elicited by longer durations. We find that BOLD response predictions are consistently good predictors for observed responses, across all cortical depths, and in all measured visual field maps (V1, V2, and V3). Our results suggest that the temporal additivity assumption for linear systems theory holds for laminar fMRI. We thus show that the temporal additivity assumption holds across cortical depth for sub-millimeter gradient-echo BOLD fMRI in early visual cortex.
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Affiliation(s)
- Jelle A van Dijk
- Spinoza Centre for Neuroimaging, Amsterdam, The Netherlands.
- Experimental Psychology, Utrecht University, Utrecht, The Netherlands.
| | - Alessio Fracasso
- Spinoza Centre for Neuroimaging, Amsterdam, The Netherlands
- Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, G12 8QB, UK
- Radiology Department, Imaging Division, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Natalia Petridou
- Radiology Department, Imaging Division, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Serge O Dumoulin
- Spinoza Centre for Neuroimaging, Amsterdam, The Netherlands
- Experimental Psychology, Utrecht University, Utrecht, The Netherlands
- Experimental and Applied Psychology, VU University, Amsterdam, The Netherlands
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Ahmad F, Martawi NM, Poerba YS, de Jong H, Schouten H, Kema GHJ. Genetic mapping of Fusarium wilt resistance in a wild banana Musa acuminata ssp. malaccensis accession. Theor Appl Genet 2020; 133:3409-3418. [PMID: 32918589 PMCID: PMC7567712 DOI: 10.1007/s00122-020-03677-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Banana is an important fruit and food crop, but is threatened by Fusarium wilt, one of the most devastating soil-borne fungal diseases. Only host resistance facilitates banana cultivation in infested soils around the world, but the genetic basis of Fusarium wilt of banana (FWB) is unknown. We selfed a heterozygous wild banana accession Musa acuminata ssp. malaccensis (Mam, AA, 2n = 22) to generate a mapping population and to investigate the inheritance of resistance to Race 1 and tropical race 4 (TR4) that cause FWB. Phenotyping (N = 217) revealed segregation for resistance, and genotyping by sequencing resulted in 2802 high-quality single-nucleotide polymorphic markers (SNPs) that were used for genetic mapping. Combined analyses of these data showed that a single dominant resistance locus controls resistance to Race 1 and maps near the distal part of chromosome 10. Recombinants, together with the position of the putative resistance gene, were further analysed using graphical genotyping, which retrieved markers flanking a 360 kb genetic region that associates with Race 1 resistance. The region contains 165 putative genes on the reference genome, including 19 leucine-rich repeat receptor-like kinase-like genes. At the same position and phase, we also identified a QTL for TR4 resistance, showing that the locus for resistance against Race 1 provided partial resistance to TR4. However, this effect was far less significant and hence not included in the mapping. These data support the breeding of new banana varieties with resistance to Fusarium wilt.
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Affiliation(s)
- Fajarudin Ahmad
- Research Center for Biology, Indonesian Institute of Sciences (LIPI), Jl. Raya Jakarta-Bogor Km. 46, Bogor, 16911, Indonesia
- Wageningen Plant Research, Wageningen University and Research, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
| | - Nani M Martawi
- Department Biology Education, Faculty of Education and Teacher Training, Universitas Sultan Ageng Tirtayasa, Kampus 2 Untirta, Jl Ciwaru Raya No. 25, Kota Serang, Banten, Indonesia
| | - Yuyu S Poerba
- Research Center for Biology, Indonesian Institute of Sciences (LIPI), Jl. Raya Jakarta-Bogor Km. 46, Bogor, 16911, Indonesia
| | - Hans de Jong
- Laboratory of Genetics, Wageningen University and Research, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
| | - Henk Schouten
- Department of Plant Breeding, Wageningen University and Research, P.O. Box 386, 6700 AJ, Wageningen, The Netherlands
| | - Gert H J Kema
- Laboratory of Phytopathology, Wageningen University and Research, P.O. Box 16, 6700 AA, Wageningen, The Netherlands.
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Cox CA, Vonk JM, Kerstjens HA, van den Berge M, ten Hacken NH. Predicted values for the forced expiratory flow adjusted for forced vital capacity, a descriptive study. ERJ Open Res 2020; 6:00426-2020. [PMID: 33344626 PMCID: PMC7737427 DOI: 10.1183/23120541.00426-2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/09/2020] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND The forced expiratory flows (FEFs) towards the end of the expiration may be more sensitive in detecting peripheral airways obstruction compared to the forced expiratory volume in 1 s and forced vital capacity (FVC). However, they are highly variable. A partial solution is to adjust the FEFs for FVC (FEF/FVC). Here we provide reference equations for these adjusted FEFs at 25%, 50%, 75% and 25-75% of FVC, which are currently lacking. METHODS We included pulmonary healthy, never-smoker adults; 14 472 subjects from Lifelines, a biobank for health research, and 338 subjects from the department's control cohorts (NORM and Fiddle). Reference equations were obtained by linear regression on 80% of the Lifelines dataset and validated on the remaining data. The best model was defined as the one with the highest adjusted R2-value. The difference in variability between adjusted and unadjusted FEFs was evaluated using the coefficient of variation. RESULTS For all adjusted FEFs, the best model contained age, height and weight. The adjustment improved the coefficient of variation of the FEF75 from 39% to 36% and from 43% to 40%, respectively, in males and females. The highest percentage of explained variance by the reference equation was obtained for FEF75/FVC, 32%-38% for males, and 41%-46% for females, depending on the validation set. CONCLUSION We developed reference equations for FVC-adjusted FEF values. We demonstrated minimally yet significantly improved variability. Future studies in obstructive airway diseases should demonstrate whether it is worthwhile to use these (predicted) adjusted FEF values.
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Affiliation(s)
- Claire A. Cox
- University of Groningen, University Medical Centre Groningen, Dept of Pulmonary Diseases Groningen, The Netherlands
- University of Groningen, University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Judith M. Vonk
- University of Groningen, University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
- University of Groningen, Dept of Epidemiology, Groningen, The Netherlands
| | - Huib A.M. Kerstjens
- University of Groningen, University Medical Centre Groningen, Dept of Pulmonary Diseases Groningen, The Netherlands
- University of Groningen, University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Maarten van den Berge
- University of Groningen, University Medical Centre Groningen, Dept of Pulmonary Diseases Groningen, The Netherlands
- University of Groningen, University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Nick H.T. ten Hacken
- University of Groningen, University Medical Centre Groningen, Dept of Pulmonary Diseases Groningen, The Netherlands
- University of Groningen, University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
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Broekman KE, Hof MAJ, Touw DJ, Gietema JA, Nijman HW, Lefrandt JD, Reyners AKL, Jalving M. Phase I study of metformin in combination with carboplatin/paclitaxel chemotherapy in patients with advanced epithelial ovarian cancer. Invest New Drugs 2020; 38:1454-1462. [PMID: 32146550 PMCID: PMC7497683 DOI: 10.1007/s10637-020-00920-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 02/28/2020] [Indexed: 12/24/2022]
Abstract
Background Metformin use is associated with reduced cancer risk in epidemiological studies and has preclinical anti-cancer activity in ovarian cancer models. The primary objective of this phase I study was to determine the recommended phase II dose (RP2D) of metformin in combination with carboplatin/paclitaxel in patients with ovarian cancer. Secondary objectives were to describe safety and pharmacokinetics. Methods In this single-center trial the RP2D of metformin in combination with carboplatin area under the concentration-time curve (AUC) 6 and paclitaxel 175 mg/m2 every 3 weeks (q3w) in patients with advanced epithelial ovarian cancer was determined using a 3 + 3 escalation rule at three fixed dose levels: 500 mg three times daily (tds), 850 mg tds and 1000 mg tds. Metformin was commenced on day 3 of cycle 1 and continued until 3 weeks after the last chemotherapy administration. The RP2D was defined as the dose level at which 0 of 3 or ≤ 1 of 6 evaluable subjects experienced a metformin-related dose-limiting toxicity (DLT). Safety was assessed according to CTCAE v4.0. Plasma and serum samples for pharmacokinetic (PK) analyses were collected during treatment cycles 1 and 2. Results Fifteen patients with epithelial ovarian cancer and an indication for neo-adjuvant (n = 5) or palliative (n = 10) treatment were included. No DLTs were observed. Three patients discontinued study treatment during cycle 1 for other reasons than DLT. Six patients were treated at the RP2D of metformin 1000 mg tds. The most frequent low-grade toxicities were anemia, hypomagnesemia and diarrhea. Grade 3 adverse events (AEs) occurred in ten patients, most common were leucopenia (n = 4), thrombocytopenia (n = 3) and increased GGT (n = 3). There were no grade 4 AEs. Metformin increased the platinum (Pt) AUC (Δ22%, p = 0.013) and decreased the Pt clearance (Δ-28%, p = 0.013). Metformin plasma levels were all within the therapeutic range for diabetic patients (0.1-4 mg/L). Conclusion The RP2D of metformin in combination with carboplatin and paclitaxel in advanced ovarian cancer is 1000 mg tds. This is higher than the RP2D reported for combination with targeted agents. A potential PK interaction of metformin with carboplatin was identified.
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Affiliation(s)
- K Esther Broekman
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB, Groningen, the Netherlands
| | - Marieke A J Hof
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Daan J Touw
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Jourik A Gietema
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB, Groningen, the Netherlands
| | - Hans W Nijman
- Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Joop D Lefrandt
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - An K L Reyners
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB, Groningen, the Netherlands
| | - Mathilde Jalving
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB, Groningen, the Netherlands.
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Hanswijk SI, Spoelder M, Shan L, Verheij MMM, Muilwijk OG, Li W, Liu C, Kolk SM, Homberg JR. Gestational Factors throughout Fetal Neurodevelopment: The Serotonin Link. Int J Mol Sci 2020; 21:E5850. [PMID: 32824000 PMCID: PMC7461571 DOI: 10.3390/ijms21165850] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/24/2020] [Accepted: 08/11/2020] [Indexed: 12/21/2022] Open
Abstract
Serotonin (5-HT) is a critical player in brain development and neuropsychiatric disorders. Fetal 5-HT levels can be influenced by several gestational factors, such as maternal genotype, diet, stress, medication, and immune activation. In this review, addressing both human and animal studies, we discuss how these gestational factors affect placental and fetal brain 5-HT levels, leading to changes in brain structure and function and behavior. We conclude that gestational factors are able to interact and thereby amplify or counteract each other's impact on the fetal 5-HT-ergic system. We, therefore, argue that beyond the understanding of how single gestational factors affect 5-HT-ergic brain development and behavior in offspring, it is critical to elucidate the consequences of interacting factors. Moreover, we describe how each gestational factor is able to alter the 5-HT-ergic influence on the thalamocortical- and prefrontal-limbic circuitry and the hypothalamo-pituitary-adrenocortical-axis. These alterations have been associated with risks to develop attention deficit hyperactivity disorder, autism spectrum disorders, depression, and/or anxiety. Consequently, the manipulation of gestational factors may be used to combat pregnancy-related risks for neuropsychiatric disorders.
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Affiliation(s)
- Sabrina I. Hanswijk
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Centre, 6525 EN Nijmegen, The Netherlands; (S.I.H.); (M.S.); (M.M.M.V.); (O.G.M.)
| | - Marcia Spoelder
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Centre, 6525 EN Nijmegen, The Netherlands; (S.I.H.); (M.S.); (M.M.M.V.); (O.G.M.)
| | - Ling Shan
- Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, 1105 BA Amsterdam, The Netherlands;
| | - Michel M. M. Verheij
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Centre, 6525 EN Nijmegen, The Netherlands; (S.I.H.); (M.S.); (M.M.M.V.); (O.G.M.)
| | - Otto G. Muilwijk
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Centre, 6525 EN Nijmegen, The Netherlands; (S.I.H.); (M.S.); (M.M.M.V.); (O.G.M.)
| | - Weizhuo Li
- College of Medical Laboratory, Dalian Medical University, Dalian 116044, China; (W.L.); (C.L.)
| | - Chunqing Liu
- College of Medical Laboratory, Dalian Medical University, Dalian 116044, China; (W.L.); (C.L.)
| | - Sharon M. Kolk
- Department of Molecular Neurobiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, 6525 AJ Nijmegen, The Netherlands;
| | - Judith R. Homberg
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Centre, 6525 EN Nijmegen, The Netherlands; (S.I.H.); (M.S.); (M.M.M.V.); (O.G.M.)
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de Zeeuw EL, Hottenga JJ, Ouwens KG, Dolan CV, Ehli EA, Davies GE, Boomsma DI, van Bergen E. Intergenerational Transmission of Education and ADHD: Effects of Parental Genotypes. Behav Genet 2020; 50:221-232. [PMID: 32026073 PMCID: PMC7355279 DOI: 10.1007/s10519-020-09992-w] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 01/08/2020] [Indexed: 11/30/2022]
Abstract
It remains a challenge to determine whether children resemble their parents due to nature, nurture, or a mixture of both. Here we used a design that exploits the distinction between transmitted and non-transmitted alleles in genetic transmission from parent to offspring. Two separate polygenic scores (PGS) were calculated on the basis of the transmitted and non-transmitted alleles. The effect of the non-transmitted PGS is necessarily mediated by parental phenotypes, insofar as they contribute to the rearing environment of the offspring (genetic nurturing). We calculated transmitted and non-transmitted PGSs associated with adult educational attainment (EA) and PGSs associated with childhood ADHD in a general population sample of trios, i.e. child or adult offspring and their parents (N = 1120-2518). We tested if the EA and ADHD (non-)transmitted PGSs were associated with childhood academic achievement and ADHD in offspring. Based on the earlier findings for shared environment, we hypothesized to find genetic nurturing for academic achievement, but not for ADHD. In adults, both transmitted (R2 = 7.6%) and non-transmitted (R2 = 1.7%) EA PGSs were associated with offspring EA, evidencing genetic nurturing. In children around age 12, academic achievement was associated with the transmitted EA PGSs (R2 = 5.7%), but we found no support for genetic nurturing (R2 ~ 0.1%). The ADHD PGSs were not significantly associated with academic achievement (R2 ~ 0.6%). ADHD symptoms in children were only associated with transmitted EA PGSs and ADHD PGSs (R2 = 1-2%). Based on these results, we conclude that the associations between parent characteristics and offspring outcomes in childhood are mainly to be attributable to the effects of genes that are shared by parents and children.
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Affiliation(s)
- Eveline L de Zeeuw
- Department of Biological Psychology, Vrije Universiteit, Van der Boechorststraat 7-9, 1081 BT, Amsterdam, The Netherlands.
- Amsterdam Public Health Research Institute, VUmc, Amsterdam, The Netherlands.
| | - Jouke-Jan Hottenga
- Department of Biological Psychology, Vrije Universiteit, Van der Boechorststraat 7-9, 1081 BT, Amsterdam, The Netherlands
| | - Klaasjan G Ouwens
- Department of Biological Psychology, Vrije Universiteit, Van der Boechorststraat 7-9, 1081 BT, Amsterdam, The Netherlands
| | - Conor V Dolan
- Department of Biological Psychology, Vrije Universiteit, Van der Boechorststraat 7-9, 1081 BT, Amsterdam, The Netherlands
| | - Erik A Ehli
- Avera Institute for Human Genetics, Avera McKennan Hospital & University Health Center, Sioux Falls, SD, USA
| | - Gareth E Davies
- Avera Institute for Human Genetics, Avera McKennan Hospital & University Health Center, Sioux Falls, SD, USA
| | - Dorret I Boomsma
- Department of Biological Psychology, Vrije Universiteit, Van der Boechorststraat 7-9, 1081 BT, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, VUmc, Amsterdam, The Netherlands
| | - Elsje van Bergen
- Department of Biological Psychology, Vrije Universiteit, Van der Boechorststraat 7-9, 1081 BT, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, VUmc, Amsterdam, The Netherlands
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Jesse WAM, Molleman J, Franken O, Lammers M, Berg MP, Behm JE, Helmus MR, Ellers J. Disentangling the effects of plant species invasion and urban development on arthropod community composition. Glob Chang Biol 2020; 26:3294-3306. [PMID: 32216012 PMCID: PMC7317202 DOI: 10.1111/gcb.15091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/12/2020] [Accepted: 03/07/2020] [Indexed: 05/15/2023]
Abstract
Urban development and species invasion are two major global threats to biodiversity. These threats often co-occur, as developed areas are more prone to species invasion. However, few empirical studies have tested if both factors affect biodiversity in similar ways. Here we study the individual and combined effects of urban development and plant invasion on the composition of arthropod communities. We assessed 36 paired invaded and non-invaded sample plots, invaded by the plant Antigonon leptopus, with half of these pairs located in natural and the other half in developed land-use types on the Caribbean island of St. Eustatius. We used several taxonomic and functional variables to describe community composition and diversity. Our results show that both urban development and A. leptopus invasion affected community composition, albeit in different ways. Development significantly increased species richness and exponential Shannon diversity, while invasion had no effect on these variables. However, invasion significantly increased arthropod abundance and caused biotic homogenization. Specifically, uninvaded arthropod communities were distinctly different in species composition between developed and natural sites, while they became undistinguishable after A. leptopus invasion. Moreover, functional variables were significantly affected by species invasion, but not by urban development. Invaded communities had higher community-weighted mean body size and the feeding guild composition of invaded arthropod communities was characterized by the exceptional numbers of nectarivores, herbivores, and detritivores. With the exception of species richness and exponential Shannon diversity, invasion influenced four out of six response variables to a greater degree than urban development did. Hence, we can conclude that species invasion is not just a passenger of urban development but also a driver of change.
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Affiliation(s)
- Wendy A. M. Jesse
- Department of Ecological Science – Animal EcologyVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Jasper Molleman
- Department of Ecological Science – Animal EcologyVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Oscar Franken
- Department of Ecological Science – Animal EcologyVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Mark Lammers
- Department of Ecological Science – Animal EcologyVrije Universiteit AmsterdamAmsterdamThe Netherlands
- Institute for Evolution and BiodiversityUniversity of MünsterMünsterGermany
| | - Matty P. Berg
- Department of Ecological Science – Animal EcologyVrije Universiteit AmsterdamAmsterdamThe Netherlands
- Groningen Institute for Evolutionary Life Sciences – Community and Conservation EcologyUniversity of GroningenGroningenThe Netherlands
| | - Jocelyn E. Behm
- Integrative Ecology LabCenter for BiodiversityDepartment of BiologyTemple UniversityPhiladelphiaPAUSA
| | - Matthew R. Helmus
- Integrative Ecology LabCenter for BiodiversityDepartment of BiologyTemple UniversityPhiladelphiaPAUSA
| | - Jacintha Ellers
- Department of Ecological Science – Animal EcologyVrije Universiteit AmsterdamAmsterdamThe Netherlands
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Tjalma JJJ, Koller M, Linssen MD, Hartmans E, de Jongh SJ, Jorritsma-Smit A, Karrenbeld A, de Vries EG, Kleibeuker JH, Pennings JP, Havenga K, Hemmer PH, Hospers GA, van Etten B, Ntziachristos V, van Dam GM, Robinson DJ, Nagengast WB. Quantitative fluorescence endoscopy: an innovative endoscopy approach to evaluate neoadjuvant treatment response in locally advanced rectal cancer. Gut 2020; 69:406-410. [PMID: 31533965 PMCID: PMC7034345 DOI: 10.1136/gutjnl-2019-319755] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 08/31/2019] [Indexed: 12/08/2022]
Affiliation(s)
- Jolien J J Tjalma
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marjory Koller
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Matthijs D Linssen
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Elmire Hartmans
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Steven J de Jongh
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Annelies Jorritsma-Smit
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Arend Karrenbeld
- Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Elisabeth G de Vries
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan H Kleibeuker
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan Pieter Pennings
- Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Klaas Havenga
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Patrick Hjh Hemmer
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Geke Ap Hospers
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Boudewijn van Etten
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Vasilis Ntziachristos
- Institute for Biological and Medical Imaging, Helmholtz Zentrum München, Munich, Germany
| | - Gooitzen M van Dam
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Dominic J Robinson
- Otolaryngology and Head and Neck Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Wouter B Nagengast
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Karo-Karo D, Pribadi ES, Sudirman FX, Kurniasih SW, Indasari I, Muljono DH, Koch G, Stegeman JA. Highly Pathogenic Avian Influenza A(H5N1) Outbreaks in West Java Indonesia 2015-2016: Clinical Manifestation and Associated Risk Factors. Microorganisms 2019; 7:E327. [PMID: 31500141 PMCID: PMC6788193 DOI: 10.3390/microorganisms7090327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 06/04/2019] [Revised: 08/20/2019] [Accepted: 09/05/2019] [Indexed: 01/13/2023] Open
Abstract
Knowledge of outbreaks and associated risk factors is helpful to improve control of the Highly Pathogenic Avian Influenza A(H5N1) virus (HPAI) in Indonesia. This study was conducted to detect outbreaks of HPAI H5N1 in endemically infected regions by enhanced passive surveillance, to describe the clinical manifestation of these outbreaks and identify associated risk factors. From November 2015 to November 2016, HPAI outbreak investigations were conducted in seven districts of West Java. In total 64 outbreaks were confirmed out of 75 reported suspicions and outbreak characteristics were recorded. The highest mortality was reported in backyard chickens (average 59%, CI95%: 49-69%). Dermal apoptosis and lesions (64%, CI95%: 52-76%) and respiratory signs (39%, CI95%: 27-51%) were the clinical signs observed overall most frequently, while neurological signs were most frequently observed in ducks (68%, CI95%: 47-90%). In comparison with 60 non-infected control farms, the rate of visitor contacts onto a farm was associated with the odds of HPAI infection. Moreover, duck farms had higher odds of being infected than backyard farms, and larger farms had lower odds than small farms. Results indicate that better external biosecurity is needed to reduce transmission of HPAI A(H5N1) in Indonesia.
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Affiliation(s)
- Desniwaty Karo-Karo
- Department of Farm Animal Health, Faculty of Veterinary Medicine Utrecht University, 3584 CL Utrecht, The Netherlands
- Centre for Diagnostic Standard of Indonesian Agricultural Quarantine Agency, Ministry of Agriculture, Jakarta 13220, Indonesia
| | - Eko Sugeng Pribadi
- Center for Tropical Animal Studies, Institute of Research and Community Empowerment, Bogor Agricultural University, Bogor 16129, Indonesia
| | | | | | - Iin Indasari
- West Java Province Animal Health Agency, Bandung 40135, Indonesia
| | | | - Guus Koch
- Wageningen Bioveterinary Research, 8221 RA Lelystad, The Netherlands
| | - Jan Arend Stegeman
- Department of Farm Animal Health, Faculty of Veterinary Medicine Utrecht University, 3584 CL Utrecht, The Netherlands.
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Widinugraheni S, Niño-Sánchez J, van der Does HC, van Dam P, García-Bastidas FA, Subandiyah S, Meijer HJG, Kistler HC, Kema GHJ, Rep M. A SIX1 homolog in Fusarium oxysporum f.sp. cubense tropical race 4 contributes to virulence towards Cavendish banana. PLoS One 2018; 13:e0205896. [PMID: 30346962 PMCID: PMC6197647 DOI: 10.1371/journal.pone.0205896] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 10/03/2018] [Indexed: 11/28/2022] Open
Abstract
The fungus Fusarium oxysporum f.sp. cubense (Focub) causes Fusarium wilt of banana. Focub strains are divided into races according to their host specificity, but which virulence factors underlie these interactions is currently unknown. In the F. oxysporum f.sp. lycopersici (Fol)-tomato system, small secreted fungal proteins, called Six proteins, were identified in the xylem sap of infected plants. The Fol Six1 protein contributes to virulence and has an avirulence function by activating the I-3 immune receptor of tomato. The Focub tropical race 4 (TR4) genome harbors three SIX1 homologs: SIX1a, b and c. In this study, the role of Focub-SIX1a in pathogenicity was evaluated since this homolog is present in not only TR4 but also in other races. A deletion mutant of the SIX1a gene from Focub TR4 strain II5 was generated (FocubΔSIX1a) and tested in planta. Mutants were found to be severely compromised in their virulence. Ectopic integration of the Focub-SIX1a gene in the FocubΔSIX1a strain restored virulence to wild type levels. We conclude that Focub-SIX1a is required for full virulence of Focub TR4 towards Cavendish banana.
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Affiliation(s)
- S. Widinugraheni
- Molecular Plant Pathology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, the Netherlands
- Faculty of Agriculture, Nusa Cendana University, Kupang, Indonesia
| | - J. Niño-Sánchez
- ARS-USDA Cereal Disease Laboratory, University of Minnesota, St. Paul, Minnesota, United States of America
| | - H. C. van der Does
- Molecular Plant Pathology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, the Netherlands
| | - P. van Dam
- Molecular Plant Pathology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, the Netherlands
| | - F. A. García-Bastidas
- Wageningen University and Research, Wageningen Plant Research, Wageningen, the Netherlands
| | - S. Subandiyah
- Dept. Plant Protection, Fac. Agriculture, Gadjah Mada University, Yogyakarta, Indonesia
- Research Center for Biotechnology, Gadjah Mada University, Yogyakarta, Indonesia
| | - H. J. G. Meijer
- Wageningen University and Research, Wageningen Plant Research, Wageningen, the Netherlands
| | - H. C. Kistler
- ARS-USDA Cereal Disease Laboratory, University of Minnesota, St. Paul, Minnesota, United States of America
| | - G. H. J. Kema
- Wageningen University and Research, Wageningen Plant Research, Wageningen, the Netherlands
| | - M. Rep
- Molecular Plant Pathology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, the Netherlands
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Jesse WAM, Behm JE, Helmus MR, Ellers J. Human land use promotes the abundance and diversity of exotic species on Caribbean islands. Glob Chang Biol 2018; 24:4784-4796. [PMID: 29851186 DOI: 10.1111/gcb.14334] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/19/2018] [Accepted: 05/07/2018] [Indexed: 05/16/2023]
Abstract
Human land use causes major changes in species abundance and composition, yet native and exotic species can exhibit different responses to land use change. Native populations generally decline in human-impacted habitats while exotic species often benefit. In this study, we assessed the effects of human land use on exotic and native reptile diversity, including functional diversity, which relates to the range of habitat use strategies in biotic communities. We surveyed 114 reptile communities from localities that varied in habitat structure and human impact level on two Caribbean islands, and calculated species richness, overall abundance, and evenness for every plot. Functional diversity indices were calculated using published trait data, which enabled us to detect signs of trait filtering associated with impacted habitats. Our results show that environmental variation among sampling plots was explained by two Principal Component Analysis (PCA) ordination axes related to habitat structure (i.e., forest or nonforest) and human impact level (i.e., addition of man-made constructions such as roads and buildings). Several diversity indices were significantly correlated with the two PCA axes, but exotic and native species showed opposing responses. Native species reached the highest abundance in forests, while exotic species were absent in this habitat. Human impact was associated with an increase in exotic abundance and species richness, while native species showed no significant associations. Functional diversity was highest in nonforested environments on both islands, and further increased on St. Martin with the establishment of functionally unique exotic species in nonforested habitat. Habitat structure, rather than human impact, proved to be an important agent for environmental filtering of traits, causing divergent functional trait values across forested and nonforested environments. Our results illustrate the importance of considering various elements of land use when studying its impact on species diversity and the establishment and spread of exotic species.
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Affiliation(s)
- Wendy A M Jesse
- Department of Ecological Science - Animal Ecology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Jocelyn E Behm
- Department of Ecological Science - Animal Ecology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Integrative Ecology Lab, Center for Biodiversity, Department of Biology, Temple University, Philadelphia, Pennsylvania
| | - Matthew R Helmus
- Integrative Ecology Lab, Center for Biodiversity, Department of Biology, Temple University, Philadelphia, Pennsylvania
| | - Jacintha Ellers
- Department of Ecological Science - Animal Ecology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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Homans JF, Crowley TB, Chen E, McGinn DE, Deeney VFX, Sakkers RJB, Davidson RS, Castelein RM, McDonald‐McGinn DM. Club foot in association with the 22q11.2 deletion syndrome: An observational study. Am J Med Genet A 2018; 176:2135-2139. [PMID: 30380189 PMCID: PMC6221052 DOI: 10.1002/ajmg.a.40649] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 09/06/2018] [Accepted: 09/07/2018] [Indexed: 12/15/2022]
Abstract
The 22q11.2 Deletion Syndrome (22q11.2DS) occurs in ~1:3,000-6,000 individuals. Features less typically associated with 22q11.2DS, such as orthopedic manifestations, may be overlooked or may not lead to appropriate diagnostic testing. Club foot has a general population prevalence of ~1:1,000 and has been occasionally described in association with 22q11.2DS. Our hypothesis is that the prevalence of club foot is higher in patients with 22q11.2DS. We performed a retrospective review in two specialized 22q11.2DS centers to determine the prevalence of club foot. "True club foot" requires treatment (either conservative or surgical), therefore we only included those patients with proof of treatment. We investigated whether congenital heart disease (CHD) and/or cleft palate were associated with the presence of club foot within 22q11.2DS. The records of 1,466 patients were reviewed. Of these, 48 (3.3%) had confirmation of club foot (95% Confidence Interval: 2.4-4.3): 22 (46%) had a bilateral, 12 (25%) left, and 14 (29%) right club foot. Within our study, neither a CHD and/or a cleft palate were associated with a club foot. The prevalence of club foot in 22q11.2DS is 30 times higher than that observed in the general population. This suggests the diagnosis of club foot, especially in the face of other typically associated abnormalities of 22q11.2DS, should provoke consideration of 22q11.2DS as an underlying diagnosis, particularly in the neonatal setting.
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Affiliation(s)
- Jelle F. Homans
- Department of Orthopaedic SurgeryUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Terrence B. Crowley
- Division of Human Genetics and 22q and You CenterThe Children's Hospital of Philadelphia (CHOP)PhiladelphiaPennsylvania
| | - Erin Chen
- Division of Human Genetics and 22q and You CenterThe Children's Hospital of Philadelphia (CHOP)PhiladelphiaPennsylvania
| | - Daniel E. McGinn
- Division of Human Genetics and 22q and You CenterThe Children's Hospital of Philadelphia (CHOP)PhiladelphiaPennsylvania
| | - Vincent F. X. Deeney
- Department of Orthopaedic SurgeryThe Children's Hospital of Philadelphia (CHOP)PhiladelphiaPennsylvania
- The Perelman School of Medicine at the University of PennsylvaniaPhiladelphiaPennsylvania
| | - Ralph J. B. Sakkers
- Department of Orthopaedic SurgeryUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Richard S. Davidson
- Department of Orthopaedic SurgeryThe Children's Hospital of Philadelphia (CHOP)PhiladelphiaPennsylvania
- The Perelman School of Medicine at the University of PennsylvaniaPhiladelphiaPennsylvania
| | - René M. Castelein
- Department of Orthopaedic SurgeryUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Donna M. McDonald‐McGinn
- Division of Human Genetics and 22q and You CenterThe Children's Hospital of Philadelphia (CHOP)PhiladelphiaPennsylvania
- The Perelman School of Medicine at the University of PennsylvaniaPhiladelphiaPennsylvania
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Ip HF, Jansen R, Abdellaoui A, Bartels M, Boomsma DI, Nivard MG. Characterizing the Relation Between Expression QTLs and Complex Traits: Exploring the Role of Tissue Specificity. Behav Genet 2018; 48:374-385. [PMID: 30030655 PMCID: PMC6097736 DOI: 10.1007/s10519-018-9914-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 07/04/2018] [Indexed: 01/14/2023]
Abstract
Measurement of gene expression levels and detection of eQTLs (expression quantitative trait loci) are difficult in tissues with limited sample availability, such as the brain. However, eQTL overlap between tissues might be high, which would allow for inference of eQTL functioning in the brain via eQTLs detected in readily accessible tissues, e.g. whole blood. Applying Stratified Linkage Disequilibrium Score Regression (SLDSR), we quantified the enrichment in polygenic signal of blood and brain eQTLs in genome-wide association studies (GWAS) of 11 complex traits. We looked at eQTLs discovered in 44 tissues by the Genotype-Tissue Expression (GTEx) consortium and two other large representative studies, and found no tissue-specific eQTL effects. Next, we integrated the GTEx eQTLs with regions associated with tissue-specific histone modifiers, and interrogated their effect on rheumatoid arthritis and schizophrenia. We observed substantially enriched effects of eQTLs located inside regions bearing modification H3K4me1 on schizophrenia, but not rheumatoid arthritis, and not tissue-specific. Finally, we extracted eQTLs associated with tissue-specific differentially expressed genes and determined their effects on rheumatoid arthritis and schizophrenia, these analysis revealed limited enrichment of eQTLs associated with gene specifically expressed in specific tissues. Our results pointed to strong enrichment of eQTLs in their effect on complex traits, without evidence for tissue-specific effects. Lack of tissue-specificity can be either due to a lack of statistical power or due to the true absence of tissue-specific effects. We conclude that eQTLs are strongly enriched in GWAS signal and that the enrichment is not specific to the eQTL discovery tissue. Until sample sizes for eQTL discovery grow sufficiently large, working with relatively accessible tissues as proxy for eQTL discovery is sensible and restricting lookups for GWAS hits to a specific tissue for which limited samples are available might not be advisable.
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Affiliation(s)
- Hill F Ip
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
| | - Rick Jansen
- Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands
| | - Abdel Abdellaoui
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Meike Bartels
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Dorret I Boomsma
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Michel G Nivard
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
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50
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Martin I, Djuardi Y, Sartono E, Rosa BA, Supali T, Mitreva M, Houwing-Duistermaat JJ, Yazdanbakhsh M. Dynamic changes in human-gut microbiome in relation to a placebo-controlled anthelminthic trial in Indonesia. PLoS Negl Trop Dis 2018; 12:e0006620. [PMID: 30091979 PMCID: PMC6084808 DOI: 10.1371/journal.pntd.0006620] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 06/19/2018] [Indexed: 12/11/2022] Open
Abstract
Background Microbiome studies suggest the presence of an interaction between the human gut microbiome and soil-transmitted helminth. Upon deworming, a complex interaction between the anthelminthic drug, helminths and microbiome composition might occur. To dissect this, we analyse the changes that take place in the gut bacteria profiles in samples from a double blind placebo controlled trial conducted in an area endemic for soil transmitted helminths in Indonesia. Methods Either placebo or albendazole were given every three months for a period of one and a half years. Helminth infection was assessed before and at 3 months after the last treatment round. In 150 subjects, the bacteria were profiled using the 454 pyrosequencing. Statistical analysis was performed cross-sectionally at pre-treatment to assess the effect of infection, and at post-treatment to determine the effect of infection and treatment on microbiome composition using the Dirichlet-multinomial regression model. Results At a phylum level, at pre-treatment, no difference was seen in microbiome composition in terms of relative abundance between helminth-infected and uninfected subjects and at post-treatment, no differences were found in microbiome composition between albendazole and placebo group. However, in subjects who remained infected, there was a significant difference in the microbiome composition of those who had received albendazole and placebo. This difference was largely attributed to alteration of Bacteroidetes. Albendazole was more effective against Ascaris lumbricoides and hookworms but not against Trichuris trichiura, thus in those who remained infected after receiving albendazole, the helminth composition was dominated by T. trichiura. Discussion We found that overall, albendazole does not affect the microbiome composition. However, there is an interaction between treatment and helminths as in subjects who received albendazole and remained infected there was a significant alteration in Bacteroidetes. This helminth-albendazole interaction needs to be studied further to fully grasp the complexity of the effect of deworming on the microbiome. Trial registration ISRCTN Registy, ISRCTN83830814. Studying the relationship between soil-transmitted helminthiasis and gut microbiota is becoming more important as both have been implicated in modulating immune system in various inflammatory diseases. However, findings of previous studies of the effect of helminth on the microbiome are inconsistent. In this study, an optimal design, a placebo-controlled anthelminthic trial was conducted to dissect the effect of helminths and anthelminthic treatment on gut microbial profile. In addition, a novel statistical model was used to analyse the association by taking into account the correlation structures between bacterial categories by applying multivariate analysis whereby the multiple testing correction is not needed.
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Affiliation(s)
- Ivonne Martin
- Department of Mathematics, Faculty of Information Technology and Science, Parahyangan Catholic University, Bandung, Indonesia
- Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, The Netherlands
- * E-mail:
| | - Yenny Djuardi
- Department of Parasitology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Erliyani Sartono
- Department of Parasitology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Bruce A. Rosa
- McDonnell Genome Institute at Washington University, St. Louis, Missouri, United States of America
| | - Taniawati Supali
- Department of Parasitology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Makedonka Mitreva
- McDonnell Genome Institute at Washington University, St. Louis, Missouri, United States of America
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | | | - Maria Yazdanbakhsh
- Department of Parasitology, Leiden University Medical Centre, Leiden, The Netherlands
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