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1.
Psychooncology ; 33(1): e6284, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38282215

RESUMO

OBJECTIVE: Parents of children with cancer are at risk for developing psychosocial problems. The present study aims to evaluate the effect of an online group intervention (Op Koers Online, in English: On Track Online) on psychosocial wellbeing and coping skills. METHODS: Parents of a child with cancer (diagnosis <5 years ago) participated in a randomized controlled trial. In six consecutive (and one booster-) protocolled sessions in an online chatroom, trained psychologists and social workers taught coping skills using cognitive behavioral and acceptance and commitment techniques. Questionnaires assessed anxiety, depression, distress, situation-specific emotional reactions and coping skills (Op Koers Questionnaire/Cognitive Coping Strategies Scale Parent Form) and evaluated the intervention. Linear mixed-model analyses were performed to detect differences between the conditions in changes over time; T0-T1 and T0-T2 (6-week and 6-month follow-up), and to detect changes in scores T2-T3 (12-month follow-up) for the intervention group only. RESULTS: 89 parents were included in analyses (mean age 41.9 years, 86% female, 62%/38% post/during treatment of their child). Beneficial intervention effects (p < 0.05) were found at T1 for anxiety, depression, distress, loneliness and relaxation, and at T2 for anxiety, uncertainty and relaxation. In the intervention condition, scores did not change from T2 to T3, except loneliness that decreased and relaxation that improved. All effect sizes were small to medium (ß = -0.21 to 0.46). Parents were generally positive about the intervention. CONCLUSIONS: Op Koers Online for parents of children with cancer has a positive effect on psychosocial wellbeing and the coping skill relaxation. Implementation is recommended to prevent psychosocial problems. CLINICAL TRIAL REGISTRATION: Dutch Trial Register https://onderzoekmetmensen.nl/en NL73763.041.20.


Assuntos
Neoplasias , Pais , Criança , Humanos , Feminino , Adulto , Masculino , Pais/psicologia , Estresse Psicológico/terapia , Estresse Psicológico/psicologia , Ansiedade/terapia , Capacidades de Enfrentamento , Neoplasias/terapia , Neoplasias/psicologia
2.
Orphanet J Rare Dis ; 17(1): 269, 2022 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-35840979

RESUMO

Ichthyosis covers a wide spectrum of diseases affecting the cornification of the skin. In recent years, new advances in understanding the pathophysiology of ichthyosis have been made. This knowledge, combined with constant development of pathogenesis-based therapies, such as protein replacement therapy and gene therapy, are rather promising for patients with inherited skin diseases. Several ongoing trials are investigating the potency of these new approaches and various studies have already been published. Furthermore, a lot of case series report that biological therapeutics are effective treatment options, mainly for Netherton syndrome and autosomal recessive congenital ichthyosis. It is expected that some of these new therapies will prove their efficacy and will be incorporated in the treatment of ichthyosis.


Assuntos
Ictiose , Síndrome de Netherton , Humanos , Ictiose/genética , Ictiose/terapia , Pele , Neoplasias Cutâneas
3.
Int J Nurs Stud ; 117: 103858, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33621720

RESUMO

BACKGROUND: The outbreak of the COVID-19 pandemic influenced family-centred care dramatically due to restricting visiting policies. In this new situation, nurses were challenged to develop new approaches to involve family members in patient care. A better understanding of these changes and the experiences of nurses is essential to make an adaptation of procedures, and to secure a family-centred approach in care as much as possible. OBJECTIVES: The aim of this study was to investigate how family involvement had taken place, and to explore the experiences of nurses with family involvement during the COVID-19 outbreak. In addition, we aimed to formulate recommendations for the involvement of family. METHODS: We conducted a qualitative study using patient record review and focus-group interviews between April and July 2020. We reviewed records of patients with confirmed COVID-19, who were admitted to the COVID-19 wards at two affiliated university hospitals in the Netherlands. All records were searched for notations referring to family involvement. In two focus-groups, nurses who worked at the COVID-19 wards were invited to share their experiences. The Rigorous and Accelerated Data Reduction (RADaR) method was used to collect, reduce and analyse the data. RESULTS: In total, 189 patient records were reviewed and nine nurses participated in the focus-group meetings. Patient records revealed infrequent and often unstructured communication with focus on physical condition. Nurses confirmed that communication with family was far less than before and that the physical condition of the patient was predominant. The involvement of family in care was limited to practicalities, although more involvement was described in end-of-life situations. Nurses experienced moral distress due to the visiting restrictions, though some acknowledged that they had experienced the direct patient care so intense and burdensome, that family contact simply felt too much. CONCLUSION: The communication with and involvement of family in hospital care changed enormously during the COVID-19 outbreak. Based on the identified themes, we formulated recommendations that may be helpful for family-centered care in hospitals during periods of restricted visiting policy.


Assuntos
COVID-19 , Pandemias , Humanos , Países Baixos , Pesquisa Qualitativa , SARS-CoV-2
4.
Ned Tijdschr Geneeskd ; 1652021 01 21.
Artigo em Holandês | MEDLINE | ID: mdl-33560600

RESUMO

Introduction of new genetic test technologies in the last decade have accelerated genetic diagnosis in many medical specialties and have increased diagnostic yield considerably. SNP-arrays have been established as first tier diagnostic tools, more and more being replaced by next generation sequencing strategies, like targeted genomic panels and whole exome sequencing. We present the diagnostic work-up of a clinical case, a girl with congenital vertebral and rib anomalies. This case illustrates the complexity of genetic tests and the need for knowledge and experience to interpret the results. Intensive collaboration between pediatrician, clinical geneticist and laboratory specialist is mandatory, as is long-term commitment to involve parents in the diagnostic journey .


Assuntos
Anormalidades Múltiplas/diagnóstico , Sequenciamento do Exoma/métodos , Testes Genéticos/métodos , Costelas/anormalidades , Coluna Vertebral/anormalidades , Anormalidades Múltiplas/genética , Criança , Feminino , Humanos
5.
Sci Rep ; 10(1): 10024, 2020 06 22.
Artigo em Inglês | MEDLINE | ID: mdl-32572036

RESUMO

T-cell receptor gene beta (TCRß) gene rearrangement represents a complex, tightly regulated molecular mechanism involving excision, deletion and recombination of DNA during T-cell development. RUNX1, a well-known transcription factor for T-cell differentiation, has recently been described to act in addition as a recombinase cofactor for TCRδ gene rearrangements. In this work we employed a RUNX1 knock-out mouse model and demonstrate by deep TCRß sequencing, immunostaining and chromatin immunoprecipitation that RUNX1 binds to the initiation site of TCRß rearrangement and its homozygous inactivation induces severe structural changes of the rearranged TCRß gene, whereas heterozygous inactivation has almost no impact. To compare the mouse model results to the situation in Acute Lymphoblastic Leukemia (ALL) we analyzed TCRß gene rearrangements in T-ALL samples harboring heterozygous Runx1 mutations. Comparable to the Runx1+/- mouse model, heterozygous Runx1 mutations in T-ALL patients displayed no detectable impact on TCRß rearrangements. Furthermore, we reanalyzed published sequence data from recurrent deletion borders of ALL patients carrying an ETV6-RUNX1 translocation. RUNX1 motifs were significantly overrepresented at the deletion ends arguing for a role of RUNX1 in the deletion mechanism. Collectively, our data imply a role of RUNX1 as recombinase cofactor for both physiological and aberrant deletions.


Assuntos
Subunidade alfa 2 de Fator de Ligação ao Core/fisiologia , Deleção de Genes , Rearranjo Gênico da Cadeia beta dos Receptores de Antígenos dos Linfócitos T/genética , Leucemia-Linfoma Linfoblástico de Células Precursoras/genética , Proteínas Proto-Oncogênicas c-ets/genética , Receptores de Antígenos de Linfócitos T alfa-beta/genética , Proteínas Repressoras/genética , Animais , Linfócitos B , Subunidade alfa 2 de Fator de Ligação ao Core/genética , Contagem de Linfócitos , Camundongos Knockout , Linfócitos T , Timo/patologia , Variante 6 da Proteína do Fator de Translocação ETS
6.
J Patient Rep Outcomes ; 3(1): 11, 2019 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-30756203

RESUMO

BACKGROUND: Siblings of children and adolescents with a chronic condition are at risk for developing psychosocial problems. It is important, that they receive appropriate support according to their needs. A sibling-specific module of an existing online intervention (Op Koers Online) for adolescents with a chronic condition might be an appropriate way to offer psychosocial support to siblings. The aim of the current study is to identify siblings' online support needs in order to develop a sibling-specific module of the existing Op Koers Online intervention. RESULTS: A total of 91 siblings (mean age 15.2 years, Standard Deviation 2.7) of children with a chronic condition completed an online questionnaire; nine semi-structured interviews were held additionally. Of all participants, 55% would like to initiate or increase contact with other siblings of children with a chronic condition and 46% of those were interested in an online chat course. The themes for online support considered most important were impact on daily life, worrying about brother's/sister's future, handling other people's reactions, and how attention is divided within the family. CONCLUSIONS: Siblings are interested in peer contact and online support. Op Koers Online for siblings seems to be a suitable intervention to offer online psychosocial support. The next step is to develop a sibling specific module of the Op Koers Online course, taking into account the identified themes.

7.
Haemophilia ; 24(3): 395-404, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29418040

RESUMO

BACKGROUND: This study assesses health-related quality of life (HRQOL), and variables associated with HRQOL, in children and adolescents with haemophilia and congenital bleeding disorders (CBD) in the Netherlands. METHODS: Patients <18 years with CBD under treatment at the Hemophilia Comprehensive Care Center of the Academic Medical Center were included. Participants completed generic HRQOL questionnaires (TAPQOL 0-5 years; PedsQL 6-18 years). Differences and effect sizes in HRQOL compared to healthy peers, and between hemophilia severity groups, were tested using Mann Whitney U-tests. Multivariate regression analyses were performed to assess variables associated with HRQOL. RESULTS: Data of 145 patients (81%) were analyzed (N = 32 with severe haemophilia). Children (0-12 years) show no significant impairments in HRQOL compared to healthy peers. Adolescent boys (13-18 years) with CBD report a slightly higher HRQOL on the total and emotional functioning scales than healthy peers (small-moderate effect sizes). In contrast, adolescent girls experience lower HRQOL on total, social functioning and psychosocial health scales compared to healthy peers (moderate effect sizes). No differences between severity groups were found in HRQOL, but more problem behaviour was found in young boys (0-5 years) with severe haemophilia. Male gender, participation in sports and school attendance are positively associated with HRQOL. Parental country of birth, type of treatment and number of bleeds are not associated with HRQOL. CONCLUSION: Continuing monitoring HRQOL in daily clinical practice for children with CBD is important, since possible influencing psychosocial factors can change over time, with special focus on adolescent girls, sports participation and school absence.


Assuntos
Nível de Saúde , Hemofilia A/epidemiologia , Qualidade de Vida , Instituições Acadêmicas/estatística & dados numéricos , Esportes , Adolescente , Criança , Pré-Escolar , Feminino , Hemofilia A/genética , Humanos , Lactente , Recém-Nascido , Masculino , Fatores Sexuais , Fatores Socioeconômicos , Inquéritos e Questionários
8.
J Genet Couns ; 27(1): 85-94, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28674770

RESUMO

Developments in prenatal testing allow the detection of more findings. SNP arrays in prenatal diagnosis (PND) can be analyzed at 0.5 Mb resolution detecting more clinically relevant anomalies, or at 5 Mb resolution. We investigated whether women had sufficient knowledge to make informed choices regarding the scope of their prenatal test that were consistent with their attitude. Pregnant women could choose between testing at 5 or at 0.5 Mb array. Consenting women (N = 69) received pre-test genetic counseling by phone and filled out the Measure of Informed Choice questionnaire designed for this study. Choices based on sufficient knowledge and consistent with attitude were considered informed. Sixty-two percent of the women made an adequately informed choice, based on sufficient knowledge and attitude-consistent with their choice of microarray resolution. Women who made an informed choice, opted for 0.5 Mb array resolution more often. There were no differences between women making adequately informed or less informed choices regarding level of experienced anxiety or doubts. Over time on T0 and T1, anxiety and doubts significantly decreased. While previous studies demonstrated that knowledge is an important component in informed decision-making, this study underlines that a consistent attitude might be equally important for decision-making. We advocate more focus on attitude-consistency and deliberation as compared to only a strong focus on knowledge.


Assuntos
Aconselhamento Genético/psicologia , Testes Genéticos/métodos , Conhecimentos, Atitudes e Prática em Saúde , Análise em Microsséries , Diagnóstico Pré-Natal/psicologia , Adulto , Ansiedade/psicologia , Tomada de Decisões , Feminino , Aconselhamento Genético/métodos , Humanos , Consentimento Livre e Esclarecido/psicologia , Gravidez , Diagnóstico Pré-Natal/métodos , Inquéritos e Questionários
9.
Ultrasound Obstet Gynecol ; 51(4): 445-452, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28556491

RESUMO

OBJECTIVE: To establish, based on a systematic literature review, the frequency of pathogenic submicroscopic chromosomal aberrations in fetuses that are not at increased risk for unbalanced structural chromosomal aberrations, with the aim of determining whether high-resolution testing for submicroscopic aberrations is beneficial in a general pregnant population. METHODS: EMBASE, PubMed, Web of Science and CENTRAL databases were searched systematically on 3 June 2016 for all relevant articles on the prevalence of pathogenic submicroscopic copy number variants (CNVs) in fetuses referred for prenatal invasive testing because of advanced maternal age (AMA) or parental anxiety (ANX). Relevant full-text articles were analyzed and the prevalence of submicroscopic CNVs was calculated based on the extracted data. Meta-analysis was conducted in a pooled cohort of 10 614 fetuses based on the 10 largest studies (n > 300) of a total of 19 that were relevant. RESULTS: Pooled estimate analysis indicated that 0.84% (95% CI, 0.55-1.30%) of fetuses that had invasive testing because of AMA/ANX carried a pathogenic clinically significant submicroscopic aberration. The onset/penetrance of submicroscopic findings was studied in 10 314 fetuses reported in eight papers that presented aberrant cases with all necessary details to allow assessment of the findings. The pooled estimates resulting from meta-analysis of the data indicated that an early-onset syndromic disorder was detected in 0.37% (95% CI, 0.27-0.52%) of cases, a susceptibility CNV was found in 0.30% (95% CI, 0.14-0.67%) and late-onset diseases were reported in 0.11% (95% CI, 0.05%-0.21%). The prevalence of early-onset syndromic disorders caused by a submicroscopic aberration was calculated to be 1:270. When the risk for submicroscopic aberrations is added to the individual risk for microscopic chromosomal aberrations, all pregnant women have a risk of higher than 1 in 180 for a relevant chromosomal aberration, and pregnant women under 36 years of age have a higher risk for submicroscopic pathogenic aberrations than for Down syndrome. CONCLUSION: This systematic review shows that a significant proportion of fetuses in a general pregnant population carry a submicroscopic pathogenic CNV. Based on these figures, all women should be informed on their individual risk for all pathogenic chromosomal aberrations and not only for common trisomies. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.


Assuntos
Aberrações Cromossômicas , Variações do Número de Cópias de DNA/genética , Síndrome de Down/diagnóstico , Análise de Sequência com Séries de Oligonucleotídeos/métodos , Estudos de Coortes , Síndrome de Down/genética , Feminino , Humanos , Idade Materna , Gravidez , Risco , Ultrassonografia Pré-Natal
10.
Ultrasound Obstet Gynecol ; 49(3): 342-348, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27102944

RESUMO

OBJECTIVE: To assess phenotypic and genotypic characteristics of small-for-gestational-age (SGA) fetuses without structural anomalies at 18-24 weeks' gestation. METHODS: This retrospective study included structurally normal singleton fetuses with an abdominal circumference ≤ 5th percentile on detailed ultrasound examination between 18 and 24 weeks' gestation. Cases were stratified according to the absence or presence of other abnormal ultrasound findings, such as abnormal amniotic fluid or soft markers. All patients were offered invasive prenatal testing with rapid aneuploidy detection by qualitative fluorescence polymerase chain reaction (QF-PCR) and, if normal, consecutive single nucleotide polymorphism (SNP) array was also offered. Detailed postnatal follow-up (≥ 5 months) was performed. In cases in which a syndromic phenotype became apparent within 5 months after birth and SNP array had not been performed prenatally, it was performed postnatally. RESULTS: A total of 211 pregnancies were eligible for inclusion. Of the 158 cases with isolated SGA on ultrasound, 36 opted for invasive prenatal testing. One case of trisomy 21 and one case of a submicroscopic abnormality (a susceptibility locus for neurodevelopmental disease) were detected. Postnatal follow-up showed a postnatal apparent syndromic phenotype in 10 cases. In one case this was due to trisomy 21 and the other nine (5.8%; 95% CI, 2.8-10.0%) cases had normal SNP array results. In 32/53 cases with SGA and associated ultrasound abnormalities, parents opted for invasive testing. One case of trisomy 21 and one of triploidy were found. In 11 cases a syndromic phenotype became apparent after birth. One was due to trisomy 21 and in one case a submicroscopic anomaly (a susceptibility locus) was found. The remaining syndromic cases (17.3%; 95% CI, 8.7-29.0%) had normal SNP array results. CONCLUSION: Testing for chromosomal anomalies should be offered in cases of SGA between 18 and 24 weeks' gestation. Whole chromosome anomalies occur in 1.3% (95% CI, 0.2-3.9%) of isolated SGA and 5.8% (95% CI, 1.5-14.0%) of associated SGA. In 0.6% (95% CI, 0.1-2.8%) and 1.9% (95% CI, 0.2-8.2%), respectively, SNP array detected a susceptibility locus for neurodevelopmental disease that would not be detected by karyotyping, QF-PCR or non-invasive prenatal testing. Therefore, and because the genetic causes of SGA are diverse, we suggest SNP array testing in cases of SGA. Thorough postnatal examination and follow-up of infants that presented with reduced fetal growth is important because chromosomally normal syndromic phenotypes occur frequently in SGA fetuses. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.


Assuntos
Aberrações Cromossômicas/estatística & dados numéricos , Peso Fetal/genética , Diagnóstico Pré-Natal/métodos , Ultrassonografia/métodos , Adolescente , Adulto , Aneuploidia , Tamanho Corporal , Feminino , Humanos , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Idade Materna , Fenótipo , Cuidado Pós-Natal , Gravidez , Segundo Trimestre da Gravidez , Estudos Retrospectivos , Ultrassonografia Pré-Natal/métodos , Adulto Jovem
11.
Plant Dis ; 101(7): 1194-1200, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30682948

RESUMO

Soybean rust, caused by the biotrophic pathogen Phakopsora pachyrhizi, is a highly destructive disease causing substantial yield losses in many soybean producing regions throughout the world. Knowledge about P. pachyrhizi virulence is needed to guide development and deployment of soybean germplasm with durable resistance against all pathogen populations. To assess the virulence diversity of P. pachyrhizi, 25 isolates from eight countries, including 17 isolates from Africa, were characterized on 11 soybean genotypes serving as differentials. All the isolates induced tan lesions with abundant sporulation on genotypes without any known resistance genes and on soybean genotypes with resistance genes Rpp4 and Rpp5b. The most durable gene was Rpp2, where 96% of the isolates induced reddish brown lesions with little or no sporulation. Of the African isolates tested, the South African isolate was the most virulent, whereas those from Kenya, Malawi, and some of the isolates from Tanzania had the lowest virulence. An Argentinian isolate was virulent on most host differentials, including two cultivars carrying multiple resistance genes. Ten distinct pathotypes were identified, four of which comprised the African isolates representing considerable P. pachyrhizi virulence. Soybean genotypes carrying Rpp1b, Rpp2, Rpp3, and Rpp5 resistance genes and cultivars Hyuuga and UG5 were observed to be resistant against most of the African isolates and therefore may be useful for soybean-breeding programs in Africa or elsewhere.

12.
Alcohol ; 57: 29-34, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27916140

RESUMO

Alcohol is often consumed to reduce tension and improve mood when exposed to stressful situations. Previous studies showed that moderate alcohol consumption may reduce stress when alcohol is consumed prior to a stressor, but data on the effect of alcohol consumption after a mental stressor is limited. Therefore, our objective was to study whether moderate alcohol consumption immediately after a mental stressor attenuates the stress response. Twenty-four healthy men (age 21-40 y, BMI 18-27 kg/m2) participated in a placebo-controlled trial. They randomly consumed 2 cans (660 mL, ∼26 g alcohol) of beer or alcohol-free beer immediately after a mental stressor (Stroop task and Trier Social Stress Test). Physiological and immunological stress response was measured by monitoring heart rate and repeated measures of the hypothalamic-pituitary-adrenal axis (HPA-axis), white blood cells and a set of cytokines. After a mental stressor, cortisol and adrenocorticotropic hormone (ACTH) concentrations were 100% and 176% more reduced at 60 min (P = 0.012 and P = 0.001, respectively) and 92% and 60% more reduced at 90 min (P < 0.001 and P = 0.056, respectively) after beer consumption as compared to alcohol-free beer consumption. Heart rate and dehydroepiandrosterone (DHEA) were not influenced by alcohol consumption. Plasma IL-8 concentrations remained lower during the stress recovery period after beer consumption than after alcohol-free beer consumption (P < 0.001). In conclusion, consumption of a moderate dose of alcohol after a mental stressor may facilitate recovery of the endocrine stress response as reflected by decreasing plasma ACTH and cortisol.


Assuntos
Consumo de Bebidas Alcoólicas/sangue , Consumo de Bebidas Alcoólicas/psicologia , Sistema Hipotálamo-Hipofisário/metabolismo , Sistema Hipófise-Suprarrenal/metabolismo , Estresse Psicológico/sangue , Estresse Psicológico/psicologia , Hormônio Adrenocorticotrópico/sangue , Adulto , Cerveja , Estudos Cross-Over , Desidroepiandrosterona/sangue , Frequência Cardíaca/efeitos dos fármacos , Frequência Cardíaca/fisiologia , Humanos , Hidrocortisona/sangue , Sistema Hipotálamo-Hipofisário/efeitos dos fármacos , Masculino , Sistema Hipófise-Suprarrenal/efeitos dos fármacos
13.
J Genet Couns ; 25(6): 1227-1234, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27220741

RESUMO

Genomic microarray may detect susceptibility loci (SL) for neurodevelopmental disorders such as autism and epilepsy, with a yet unquantifiable risk for the fetus. The prenatal disclosure of susceptibility loci is a topic of much debate. Many health care professionals fear that reporting susceptibility loci may put a psychological burden on pregnant couples. It is our policy to disclose prenatal susceptibility loci as we recognize them as actionable for prospective parents. The aim of this report was to evaluate the psychological impact of disclosing a prenatal diagnosis of susceptibility loci. The psychological impact of disclosing susceptibility loci was evaluated in the first patients who received such results. Eight out of 15 women who had a susceptibility locus disclosed and four of their partners consented to share their experiences through a telephonic evaluation (n = 12). Follow-up time ranged from 3 to 15 months after their prenatal test result. The reporting of susceptibility loci was initially 'shocking' for five parents while the other seven felt 'worried'. Ten out of 12 participants indicated they would like to be informed about the susceptibility locus again, two were unsure. Most had no enduring worries. Participants unanimously indicated that pregnant couples should have an individualized pre-test choice about susceptibility loci (non)disclosure. We observed no negative psychological impact with the prenatal diagnosis and disclosure of SL on participants. A key factor in mitigating parental anxiety with SL disclosure appears to be post-test genetic counseling. Our report confirms that pregnant women and their partners prefer an individualized choice regarding the scope of prenatal testing.


Assuntos
Variações do Número de Cópias de DNA , Revelação , Aconselhamento Genético/psicologia , Predisposição Genética para Doença , Pais/psicologia , Diagnóstico Pré-Natal/psicologia , Adulto , Medo , Feminino , Feto , Testes Genéticos , Humanos , Masculino , Gravidez , Pesquisa Qualitativa , Estresse Psicológico , Adulto Jovem
14.
Clin Genet ; 88(1): 25-31, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25134982

RESUMO

Genomic array detects more pathogenic chromosome aberrations than conventional karyotyping (CK), including genetic variants associated with a susceptibility for neurodevelopmental disorders; susceptibility loci (SL). Consensus regarding the scope of invasive prenatal diagnosis (PND) pregnant couples should be offered is lacking. This study examined pregnant couples' preferences, doubts and satisfaction regarding the scope of invasive PND. Eighty-two couples choosing prenatal screening (PNS) and 59 couples choosing invasive PND were offered a choice between 5 (comparable to CK) and 0.5 Mb resolution array analysis outcomes, the latter with or without reporting SL. A pre-test self-report questionnaire and post-test telephone interview assessed their choices in-depth. Actual (PND) and hypothetical (PNS) choices differed significantly (p < 0.001). Ninety-five percent of the couples in the PND group chose 0.5 Mb array, vs 69% in the PNS group. Seven percent of the PND group wished not to be informed of SL. Ninety percent was satisfied with their choice and wished to decide about the scope themselves. Pregnant couples wish to make their own choices regarding the scope of invasive PND. It therefore seems justified to offer them a choice in both the resolution of array and disclosure of SL.


Assuntos
Aneuploidia , Tomada de Decisões , Testes Genéticos , Diagnóstico Pré-Natal/psicologia , Adulto , Feminino , Humanos , Cariotipagem , Masculino , Pessoa de Meia-Idade , Análise de Sequência com Séries de Oligonucleotídeos , Gravidez , Risco , Inquéritos e Questionários
16.
Plant Dis ; 98(2): 197-205, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30708745

RESUMO

Resistance of Alternaria alternata to boscalid, the first succinate dehydrogenase inhibitor (SDHI) fungicide labeled on pistachio, has become a common occurrence in California pistachio orchards and affects the performance of this fungicide. In this study, we established the baseline sensitivities of A. alternata to the new SDHIs fluopyram, fluxapyroxad, and penthiopyrad and assessed their cross resistance patterns with boscalid. Examination of the effective fungicide concentration that inhibits mycelial growth to 50% relative to the control (EC50) for 50 baseline isolates revealed that the majority were sensitive to boscalid, penthiopyrad, fluopyram, and fluxapyroxad. Analysis of EC50 values for boscalid for 117 A. alternata isolates originating from boscalid-exposed orchards showed that 44, 3, 1, and 69 isolates had sensitive, reduced sensitivity, moderately resistant, and highly resistant boscalid phenotypes, respectively. Molecular investigation of the occurrence of known SDH mutations showed that, among the 69 isolates highly resistant to boscalid, 44, 2, 14, and 1 isolates possessed the mutations leading to the H277Y, H277R, H134R, and H133R amino acid substitutions in AaSDHB, AaSDHB, AaSDHC, and AaSDHD subunits, respectively. Some SDHB or SDHC mutants displayed highly sensitive, sensitive, or reduced sensitivity phenotypes toward penthiopyrad or fluxapyroxad, whereas other had low, moderate, or high levels of resistance to these fungicides. In contrast, all the SDHB mutants were sensitive to fluopyram, while 10, 5, and 1 SDHC mutants had sensitive, reduced sensitivity, and moderately resistant fluopyram phenotypes, respectively. The SDHD mutant had reduced sensitivity to fluopyram and penthiopyrad but was highly resistant to fluxapyroxad. The discrepancies of cross-resistance patterns between SDHIs suggest that their binding sites in complex II may differ slightly and that additional mechanisms of resistance to these compounds are likely involved. Ultimately, the findings of this study should lead to the rational and sustained deployment of new SDHIs in Alternaria late blight spray programs.

17.
Exp Cell Res ; 319(1): 12-20, 2013 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-23063877

RESUMO

High activity of histone deacetylases (HDACs) has been documented in several types of cancer and may be associated with survival advantage. In a head and neck squamous cell carcinoma cell line, cisplatin-induced apoptosis was augmented by pretreatment with the HDAC inhibitor trichostatin A. Apoptosis was accompanied by lysosomal membrane permeabilization (LMP), as shown by immunoblotting of the lysosomal marker protease cathepsin B in extracted cytosol and by immunofluorescence. Moreover, LAMP-2 (lysosomal associated membrane protein-2) was translocated from lysosomal membranes and found in a digitonin extractable fraction together with cytosolic proteins and pretreatment with trichostatin A potentiated the release. Overall, protein level of LAMP-2 was decreased during cell death and, interestingly, inhibition of cysteine cathepsins, by the pan-cysteine cathepsin inhibitor zFA-FMK, prevented loss of LAMP-2. The importance of LAMP-2 for lysosomal membrane stability, was confirmed by showing that LAMP-2 knockout MEFs (mouse embryonic fibroblasts) were more sensitive to cisplatin as compared to the corresponding wildtype cells. Trichostatin A reduced lysosomal pH from 4.46 to 4.25 and cell death was prevented when lysosomal pH was increased by NH(4)Cl, or when inhibiting the activity of lysosomal proteases. We conclude that trichostatin A enhances cisplatin induced cell death by decreasing lysosomal pH, which augments cathepsin activity resulting in reduced LAMP-2 level, and might promote LMP.


Assuntos
Apoptose/efeitos dos fármacos , Cisplatino/farmacologia , Inibidores de Histona Desacetilases/farmacologia , Ácidos Hidroxâmicos/farmacologia , Lisossomos/efeitos dos fármacos , Regulação para Cima/efeitos dos fármacos , Antineoplásicos/farmacologia , Apoptose/fisiologia , Carcinoma de Células Escamosas/enzimologia , Carcinoma de Células Escamosas/patologia , Linhagem Celular Tumoral , Neoplasias de Cabeça e Pescoço/enzimologia , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Concentração de Íons de Hidrogênio/efeitos dos fármacos , Lisossomos/metabolismo
18.
Haemophilia ; 18(5): 766-72, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22458923

RESUMO

The Group Medical Appointment (GMA) is a novel consultation form in which patients undergo individual consultations in each other's presence. To compare participants' experiences with GMA and Individual Medical Appointments (IMA), the usual standard of care, our team recently implemented the GMA for children aged 0-18 years with haemophilia or von Willebrand's disease. Participants' experiences with GMA were measured using a standardized QUOTE-questionnaire. Of 100 addressed families, 53 participated in GMA. Of these 53 families, 38 parents (72%) and 14 adolescents (82%) filled in the questionnaire about the GMA. Patients not on prophylaxis were defined as less experienced and patients on prophylaxis, as experienced. Although parents were satisfied with both GMA and IMA (median score 8.0 vs. 9.0 of 10), a significant difference was demonstrated between less experienced and experienced parents. After GMA, less experienced parents were significantly more satisfied (median score 8.0 vs. 5.0; P-value 0.006), felt more social support (82% vs. 30%; P-value 0.005) and reported additional learning effects with regard to disease and treatment (64% vs. 0%; P-value <0.001) than experienced parents. None of the less experienced parents reported privacy problems during GMA compared with 40% of experienced parents. In adolescents an identical trend was reported. Sixty-six per cent of parents would join a GMA in the future and 87% would recommend a GMA to others. The GMA is a valuable addition in haemophilia and von Willebrand care, especially for less experienced patients. It leads to improved satisfaction, social support and improved information.


Assuntos
Assistência Ambulatorial/métodos , Hemofilia A/terapia , Doenças de von Willebrand/terapia , Adolescente , Assistência Ambulatorial/tendências , Agendamento de Consultas , Criança , Pré-Escolar , Prática de Grupo , Humanos , Lactente , Recém-Nascido , Masculino , Países Baixos , Pais , Cooperação do Paciente , Satisfação do Paciente , Encaminhamento e Consulta , Apoio Social , Inquéritos e Questionários
19.
Neth Heart J ; 18(10): 478-85, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20978592

RESUMO

Background. About 30% of dilated cardiomyopathy (DCM) cases are familial. Mutations are mostly found in the genes encoding lamin A/C, beta-myosin heavy chain and the sarcomeric protein cardiac troponin-T (TNNT2). Mutations in TNNT2 are reported in approximately 3% of DCM patients. The overall phenotype caused by TNNT2 mutations is thought to be a fully penetrant, severe disease. This also seems to be true for a recurrent deletion in the TNNT2 gene; p.K217del (also known as p.K210del). Methods. We compared the phenotype of all Dutch patients identified as carrying the TNNT2 p.K217del mutation with those described in the literature. All index patients underwent cardiological evaluation. Family screening was done in all described families. Results. Six DCM patients carrying the TNNT2 p.K217del mutation were identified from four Dutch families. Mean age of disease manifestation was 33 years. Heart transplantation was required in three of them at ages 12, 18 and 19 years. These outcomes are comparable with those described in the literature. Conclusion. Carriers of the TNNT2 p.K217del mutation in our Dutch families, as well as in families described in the literature before, generally show a severe, early-onset form of DCM. (Neth Heart J 2010;18:478-85.).

20.
Diabetologia ; 51(8): 1375-81, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18504547

RESUMO

AIMS/HYPOTHESIS: To determine whether 6 weeks of daily, moderate alcohol consumption increases expression of the gene encoding adiponectin (ADIPOQ) and plasma levels of the protein, and improves insulin sensitivity in postmenopausal women. METHODS: In a randomised, open-label, crossover trial conducted in the Netherlands, 36 apparently healthy postmenopausal women who were habitual alcohol consumers, received 250 ml white wine ( approximately 25 g alcohol/day) or 250 ml of white grape juice (control) daily during dinner for 6 weeks. Randomisation to treatment allocation occurred according to BMI. Insulin sensitivity and ADIPOQ mRNA and plasma adiponectin levels were measured at the end of both periods. Insulin sensitivity was estimated using the homeostasis model assessment of insulin resistance (HOMA-IR). Levels of ADIPOQ mRNA in subcutaneous adipose tissue were determined by RT-PCR. RESULTS: All subjects completed the study. Six weeks of white wine consumption reduced fasting insulin (mean +/- SEM 40.0 +/- 3.4 vs 46.5 +/- 3.4 pmol/l; p < 0.01) and HOMA-IR (1.42 +/- 0.13 vs 1.64 +/- 0.13; p = 0.02) compared with 6 weeks of grape juice consumption. ADIPOQ mRNA levels (1.09 +/- 0.15 vs 0.98 +/- 0.15; p = 0.04) and plasma levels of total (13.1 +/- 0.8 vs 12.0 +/- 0.8 microg/ml; p < 0.001) and high molecular weight (HMW) adiponectin (9.9 +/- 1.2 vs 8.8 +/- 1.2 microg/ml; p = 0.02) significantly increased after alcohol compared with juice consumption. Changes in ADIPOQ mRNA levels correlated with changes in plasma levels of total adiponectin (rho = 0.46; p < 0.01). Both fasting triacylglycerol (8.2%; p = 0.04) and LDL-cholesterol levels (7.8%; p < 0.0001) decreased, whereas HDL-cholesterol increased (7.0%; p < 0.0001) after prolonged moderate alcohol intake. No notable adverse effects were reported. CONCLUSIONS/INTERPRETATION: Moderate alcohol consumption for 6 weeks improves insulin sensitivity, adiponectin levels and lipid profile in postmenopausal women. Furthermore, these data suggest a transcriptional mechanism leading to the alcohol-induced increase in adiponectin plasma levels.


Assuntos
Adiponectina/genética , Consumo de Bebidas Alcoólicas , Regulação da Expressão Gênica/efeitos dos fármacos , Insulina/farmacologia , Pós-Menopausa , Adiponectina/sangue , Estudos Cross-Over , Feminino , Humanos , Lipídeos/sangue , Pessoa de Meia-Idade , PPAR gama/genética
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