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1.
Ned Tijdschr Geneeskd ; 1682024 06 11.
Artículo en Holandés | MEDLINE | ID: mdl-38888410

RESUMEN

BACKGROUND: Advanced heart failure is defined as severe cardiac dysfunction combined with hospital admissions due to heart failure and major functional limitations. Selected patients with advanced heart failure can be treated with a left ventricular assist device. Patients with the newest generation of devices have a five-year survival of approximately 60%. CASE DESCRIPTION: We describe the case of a 54-year-old patient with advanced heart failure due to coronary artery disease, who was referred from a secondary to a tertiary care center to evaluate candidacy for LVAD therapy. Due to significant multimorbidity and unhealthy lifestyle (BMI 33 kg/m2, eGFR 29 ml/min/1.73m2, smoking, peripheral vascular disease, very poorly controlled diabetes mellitus), the patient was not considered a suitable candidate. Due to a rigorous change in his lifestyle, a number of (relative) contraindications changed in such a way that an LVAD was successfully implanted in the patient with a good functional status afterwards. CONCLUSION: Candidacy for LVAD therapy is determined on an individual basis through a vigilant screening process. Eligibility for this treatment can be positively influenced by a change in lifestyle. Intensive guidance of care providers is important in this respect.


Asunto(s)
Insuficiencia Cardíaca , Corazón Auxiliar , Estilo de Vida , Humanos , Persona de Mediana Edad , Masculino , Insuficiencia Cardíaca/terapia
2.
Hum Genet ; 143(6): 761-773, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38787418

RESUMEN

Chung-Jansen syndrome is a neurodevelopmental disorder characterized by intellectual disability, behavioral problems, obesity and dysmorphic features. It is caused by pathogenic variants in the PHIP gene that encodes for the Pleckstrin homology domain-interacting protein, which is part of an epigenetic modifier protein complex. Therefore, we hypothesized that PHIP haploinsufficiency may impact genome-wide DNA methylation (DNAm). We assessed the DNAm profiles of affected individuals with pathogenic and likely pathogenic PHIP variants with Infinium Methylation EPIC arrays and report a specific and sensitive DNAm episignature biomarker for Chung-Jansen syndrome. In addition, we observed similarities between the methylation profile of Chung-Jansen syndrome and that of functionally related and clinically partially overlapping genetic disorders, White-Kernohan syndrome (caused by variants in DDB1 gene) and Börjeson-Forssman-Lehmann syndrome (caused by variants in PHF6 gene). Based on these observations we also proceeded to develop a common episignature biomarker for these disorders. These newly defined episignatures can be used as part of a multiclass episignature classifier for screening of affected individuals with rare disorders and interpretation of genetic variants of unknown clinical significance, and provide further insights into the common molecular pathophysiology of the clinically-related Chung-Jansen, Börjeson-Forssman-Lehmann and White-Kernohan syndromes.


Asunto(s)
Metilación de ADN , Discapacidad Intelectual , Humanos , Discapacidad Intelectual/genética , Discapacidad Intelectual/diagnóstico , Masculino , Femenino , Haploinsuficiencia/genética , Trastornos del Neurodesarrollo/genética , Trastornos del Neurodesarrollo/diagnóstico , Niño
3.
Lancet Oncol ; 25(5): 603-613, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38588682

RESUMEN

BACKGROUND: Patients with stage II-III HER2-positive breast cancer have good outcomes with the combination of neoadjuvant chemotherapy and HER2-targeted agents. Although increasing the number of chemotherapy cycles improves pathological complete response rates, early complete responses are common. We investigated whether the duration of chemotherapy could be tailored on the basis of radiological response. METHODS: TRAIN-3 is a single-arm, phase 2 study in 43 hospitals in the Netherlands. Patients with stage II-III HER2-positive breast cancer aged 18 years or older and a WHO performance status of 0 or 1 were enrolled. Patients received neoadjuvant chemotherapy consisting of paclitaxel (80 mg/m2 of body surface area on day 1 and 8 of each 21 day cycle), trastuzumab (loading dose on day 1 of cycle 1 of 8 mg/kg bodyweight, and then 6 mg/kg on day 1 on all subsequent cycles), and carboplatin (area under the concentration time curve 6 mg/mL per min on day 1 of each 3 week cycle) and pertuzumab (loading dose on day 1 of cycle 1 of 840 mg, and then 420 mg on day 1 of each subsequent cycle), all given intravenously. The response was monitored by breast MRI every three cycles and lymph node biopsy. Patients underwent surgery when a complete radiological response was observed or after a maximum of nine cycles of treatment. The primary endpoint was event-free survival at 3 years; however, follow-up for the primary endpoint is ongoing. Here, we present the radiological and pathological response rates (secondary endpoints) of all patients who underwent surgery and the toxicity data for all patients who received at least one cycle of treatment. Analyses were done in hormone receptor-positive and hormone receptor-negative patients separately. This trial is registered with ClinicalTrials.gov, number NCT03820063, recruitment is closed, and the follow-up for the primary endpoint is ongoing. FINDINGS: Between April 1, 2019, and May 12, 2021, 235 patients with hormone receptor-negative cancer and 232 with hormone receptor-positive cancer were enrolled. Median follow-up was 26·4 months (IQR 22·9-32·9) for patients who were hormone receptor-negative and 31·6 months (25·6-35·7) for patients who were hormone receptor-positive. Overall, the median age was 51 years (IQR 43-59). In 233 patients with hormone receptor-negative tumours, radiological complete response was seen in 84 (36%; 95% CI 30-43) patients after one to three cycles, 140 (60%; 53-66) patients after one to six cycles, and 169 (73%; 66-78) patients after one to nine cycles. In 232 patients with hormone receptor-positive tumours, radiological complete response was seen in 68 (29%; 24-36) patients after one to three cycles, 118 (51%; 44-57) patients after one to six cycles, and 138 (59%; 53-66) patients after one to nine cycles. Among patients with a radiological complete response after one to nine cycles, a pathological complete response was seen in 147 (87%; 95% CI 81-92) of 169 patients with hormone receptor-negative tumours and was seen in 73 (53%; 44-61) of 138 patients with hormone receptor-positive tumours. The most common grade 3-4 adverse events were neutropenia (175 [37%] of 467), anaemia (75 [16%]), and diarrhoea (57 [12%]). No treatment-related deaths were reported. INTERPRETATION: In our study, a third of patients with stage II-III hormone receptor-negative and HER2-positive breast cancer had a complete pathological response after only three cycles of neoadjuvant systemic therapy. A complete response on breast MRI could help identify early complete responders in patients who had hormone receptor negative tumours. An imaging-based strategy might limit the duration of chemotherapy in these patients, reduce side-effects, and maintain quality of life if confirmed by the analysis of the 3-year event-free survival primary endpoint. Better monitoring tools are needed for patients with hormone receptor-positive and HER2-positive breast cancer. FUNDING: Roche Netherlands.


Asunto(s)
Anticuerpos Monoclonales Humanizados , Protocolos de Quimioterapia Combinada Antineoplásica , Neoplasias de la Mama , Imagen por Resonancia Magnética , Terapia Neoadyuvante , Estadificación de Neoplasias , Paclitaxel , Receptor ErbB-2 , Humanos , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/patología , Neoplasias de la Mama/diagnóstico por imagen , Femenino , Persona de Mediana Edad , Receptor ErbB-2/metabolismo , Receptor ErbB-2/análisis , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Adulto , Anciano , Paclitaxel/administración & dosificación , Trastuzumab/administración & dosificación , Carboplatino/administración & dosificación , Quimioterapia Adyuvante , Países Bajos , Esquema de Medicación
4.
Prenat Diagn ; 44(3): 289-296, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38342960

RESUMEN

OBJECTIVE: To evaluate which cytogenetic characteristics of confined placental mosaicism (CPM) detected in the first trimester chorionic villi and/or placentas in terms of chromosome aberration, cell lineage involved and trisomy origin will lead to fetal growth restriction and low birthweight. METHODS: Cohort study using routinely collected perinatal data and cytogenetic data of non-invasive prenatal testing, the first trimester chorionic villi sampling and postnatal placentas. RESULTS: 215 CPM cases were found. Fetal growth restriction (FGR) and low birthweight below the 10th percentile (BW < p10) were seen in 34.0% and 23.1%, respectively. Excluding cases of trisomy 16, 29.1% showed FGR and 17.9% had a BW < p10. The highest rate of FGR and BW < p10 was found in CPM type 3, but differences with type 1 and 2 were not significant. FGR and BW < p10 were significantly more often observed in cases with meiotic trisomies. CONCLUSION: There is an association between CPM and FGR and BW < p10. This association is not restricted to trisomy 16, neither to CPM type 3, nor to CPM involving a meiotic trisomy. Pregnancies with all CPM types and origins should be considered to be at increased risk of FGR and low BW < p10. A close prenatal fetal monitoring is indicated in all cases of CPM.


Asunto(s)
Placenta , Trisomía , Embarazo , Femenino , Humanos , Placenta/metabolismo , Trisomía/diagnóstico , Trisomía/genética , Mosaicismo , Retardo del Crecimiento Fetal/diagnóstico , Retardo del Crecimiento Fetal/genética , Estudios de Cohortes , Peso al Nacer , Estudios Retrospectivos , Cromosomas Humanos Par 16
5.
Can J Psychiatry ; 69(6): 404-414, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38343025

RESUMEN

OBJECTIVE: First Nations children face a greater risk of experiencing mental disorders than other children from the general population because of family and societal factors, yet there is little research examining their mental health. This study compares diagnosed mental disorders and suicidal behaviours of First Nations children living on-reserve and off-reserve to all other children living in Manitoba. METHOD: The research team, which included First Nations and non-First Nations researchers, utilized population-based administrative data that linked de-identified individual-level records from the 2016 First Nations Research File to health and social information for children living in Manitoba. Adjusted rates and rate ratios of mental disorders and suicide behaviours were calculated using a generalized linear modelling approach to compare First Nations children (n = 40,574) and all other children (n = 197,109) and comparing First Nations children living on- and off-reserve. RESULTS: Compared with all other children, First Nations children had a higher prevalence of schizophrenia (adjusted rate ratio (aRR): 4.42, 95% confidence interval (CI), 3.36 to 5.82), attention-deficit hyperactivity disorder (ADHD; aRR: 1.21, 95% CI, 1.09 to 1.33), substance use disorders (aRR: 5.19; 95% CI, 4.25 to 6.33), hospitalizations for suicide attempts (aRR: 6.96; 95% CI, 4.36 to 11.13) and suicide deaths (aRR: 10.63; 95% CI, 7.08 to 15.95). The prevalence of ADHD and mood/anxiety disorders was significantly higher for First Nations children living off-reserve compared with on-reserve; in contrast, hospitalization rates for suicide attempts were twice as high on-reserve than off-reserve. When the comparison cohort was restricted to only other children in low-income areas, a higher prevalence of almost all disorders remained for First Nations children. CONCLUSION: Large disparities were found in mental health indicators between First Nations children and other children in Manitoba, demonstrating that considerable work is required to improve the mental well-being of First Nations children. Equitable access to culturally safe services is urgently needed and these services should be self-determined, planned, and implemented by First Nations people.


Asunto(s)
Trastornos Mentales , Humanos , Manitoba/epidemiología , Femenino , Niño , Masculino , Adolescente , Estudios Retrospectivos , Trastornos Mentales/epidemiología , Intento de Suicidio/estadística & datos numéricos , Indígena Canadiense/estadística & datos numéricos , Preescolar , Prevalencia , Indígenas Norteamericanos/estadística & datos numéricos
6.
Am J Med Genet A ; 194(3): e63445, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37872713

RESUMEN

The bromodomain adjacent to zinc finger 2B (BAZ2B) gene encodes a chromatin remodeling protein that has been shown to perform a variety of regulatory functions. It has been proposed that loss of BAZ2B function is associated with neurodevelopmental phenotypes, and some recurrent structural birth defects and dysmorphic features have been documented among individuals carrying heterozygous loss-of-function BAZ2B variants. However, additional evidence is needed to confirm that these phenotypes are attributable to BAZ2B deficiency. Here, we report 10 unrelated individuals with heterozygous deletions, stop-gain, frameshift, missense, splice junction, indel, and start-loss variants affecting BAZ2B. These included a paternal intragenic deletion and a maternal frameshift variant that were inherited from mildly affected or asymptomatic parents. The analysis of molecular and clinical data from this cohort, and that of individuals previously reported, suggests that BAZ2B haploinsufficiency causes an autosomal dominant neurodevelopmental syndrome that is incompletely penetrant. The phenotypes most commonly seen in association with loss of BAZ2B function include developmental delay, intellectual disability, autism spectrum disorder, speech delay-with some affected individuals being non-verbal-behavioral abnormalities, seizures, vision-related issues, congenital heart defects, poor fetal growth, and an indistinct pattern of dysmorphic features in which epicanthal folds and small ears are particularly common.


Asunto(s)
Trastorno del Espectro Autista , Discapacidad Intelectual , Trastornos del Neurodesarrollo , Factores Generales de Transcripción , Humanos , Discapacidad Intelectual/genética , Factores de Transcripción/genética , Fenotipo , Dedos de Zinc , Trastornos del Neurodesarrollo/genética , Proteínas que Contienen Bromodominio , Factores Generales de Transcripción/genética
7.
Ther Drug Monit ; 2023 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-38018850

RESUMEN

ABSTRACT: Obesity is associated with an increased risk of cancers, such as breast cancer. Roux-en-Y gastric bypass (RYGB) is a common surgical intervention used to induce weight loss, reduce comorbidities, and improve overall survival. Due to alterations in the gastrointestinal tract, RYGB is associated with changes in oral drug disposition, which can affect treatment outcomes. Oral antihormonal agents were monitored in 9 patients who previously underwent RYGB. The results of therapeutic drug monitoring and estradiol concentrations were analyzed, and a review of the relevant literature was performed. As only 1 of the 6 patients prescribed tamoxifen achieved a therapeutic endoxifen concentration with the standard dose of 20 mg/d, a higher starting dose of 40 mg/d was recommended to increase the probability of attaining a therapeutic plasma concentration. All patients with decreased CYP2D6 metabolic activity could not achieve therapeutic plasma concentrations; therefore, CYP2D6 genotyping was recommended before the initiation of tamoxifen therapy to identify patients who should be switched to aromatase inhibitors. Anastrozole and letrozole exposure in patients who underwent RYGB patients appeared sufficient, with no dose adjustment required. However, until more data become available, monitoring aromatase inhibitor efficacy is recommended. Monitoring the drug concentrations is a viable option; however, only indicative data on therapeutic drug monitoring are available. Therefore, estradiol concentrations should be measured.

8.
Am J Hum Genet ; 110(8): 1356-1376, 2023 08 03.
Artículo en Inglés | MEDLINE | ID: mdl-37421948

RESUMEN

By converting physical forces into electrical signals or triggering intracellular cascades, stretch-activated ion channels allow the cell to respond to osmotic and mechanical stress. Knowledge of the pathophysiological mechanisms underlying associations of stretch-activated ion channels with human disease is limited. Here, we describe 17 unrelated individuals with severe early-onset developmental and epileptic encephalopathy (DEE), intellectual disability, and severe motor and cortical visual impairment associated with progressive neurodegenerative brain changes carrying ten distinct heterozygous variants of TMEM63B, encoding for a highly conserved stretch-activated ion channel. The variants occurred de novo in 16/17 individuals for whom parental DNA was available and either missense, including the recurrent p.Val44Met in 7/17 individuals, or in-frame, all affecting conserved residues located in transmembrane regions of the protein. In 12 individuals, hematological abnormalities co-occurred, such as macrocytosis and hemolysis, requiring blood transfusions in some. We modeled six variants (p.Val44Met, p.Arg433His, p.Thr481Asn, p.Gly580Ser, p.Arg660Thr, and p.Phe697Leu), each affecting a distinct transmembrane domain of the channel, in transfected Neuro2a cells and demonstrated inward leak cation currents across the mutated channel even in isotonic conditions, while the response to hypo-osmotic challenge was impaired, as were the Ca2+ transients generated under hypo-osmotic stimulation. Ectopic expression of the p.Val44Met and p.Gly580Cys variants in Drosophila resulted in early death. TMEM63B-associated DEE represents a recognizable clinicopathological entity in which altered cation conductivity results in a severe neurological phenotype with progressive brain damage and early-onset epilepsy associated with hematological abnormalities in most individuals.


Asunto(s)
Encefalopatías , Discapacidad Intelectual , Humanos , Encefalopatías/genética , Canales Iónicos/genética , Encéfalo , Discapacidad Intelectual/genética , Fenotipo
9.
Am J Med Genet A ; 191(7): 1889-1899, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37129290

RESUMEN

Triplication of chromosomal region 1p36.3 is a rare genomic rearrangement. In this report, we delineate the phenotypic spectrum associated with 1p36.3 triplications. We describe four patients with microtriplications of variable size, but with a strong phenotypic overlap, and compare them to previously described patients with an isolated triplication or duplication of this region. The 1p36.3 triplication syndrome is associated with a distinct phenotype, characterized by global developmental delay, moderate intellectual disability, seizures, behavioral problems, and specific facial dysmorphic features, including ptosis, hypertelorism, and arched eyebrows. The de novo occurrence of these microtriplications demonstrates the reduced reproductive fitness associated with this genotype, in contrast to 1p36.3 duplications which are mostly inherited and can be associated with similar facial features but with a less severe developmental phenotype. The shared triplicated region encompasses four disease-related genes of which GABRD and SKI are most likely to contribute to the phenotype.


Asunto(s)
Discapacidades del Desarrollo , Discapacidad Intelectual , Niño , Humanos , Cromosomas Humanos Par 3 , Discapacidades del Desarrollo/genética , Cara , Discapacidad Intelectual/genética , Fenotipo , Receptores de GABA-A/genética , Síndrome
10.
Cancer Treat Res Commun ; 35: 100691, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36913809

RESUMEN

INTRODUCTION: In addition to clinical trials, real-world data is needed to verify the effectiveness of the CDK 4/6 inhibitor palbociclib. The primary aim was to examine real-world variation in treatment modification strategies for neutropenia and its relation to progression-free survival (PFS). The secondary aim was to assess if there is a gap between real-world and clinical trial outcomes. MATERIALS AND METHODS: In this multicenter, retrospective observational cohort study 229 patients were analyzed who started palbociclib and fulvestrant as second- or later-line therapy for HR-positive, HER2-negative metastatic breast cancer in the Santeon hospital group in the Netherlands between September 2016 and December 2019. Data were manually retrieved from patients' electronic medical records. PFS was examined using the Kaplan-Meier method to compare neutropenia-related treatment modification strategies within the first three months after neutropenia grade 3 - 4 occurred, as well as patients' eligibility to have participated in the PALOMA-3 clinical trial or not. RESULTS: Even though treatment modification strategies differed from those in PALOMA-3 (dose interruptions: 26 vs 54%, cycle delays: 54 vs 36%, and dose reductions: 39 vs 34%), these did not influence PFS. Patients who were PALOMA-3 ineligible experienced a shorter median PFS than those who were eligible (10.2 vs. 14.1 months; HR 1.52; 95% CI 1.12 - 2.07). An overall longer median PFS was found compared to PALOMA-3 (11.6 vs. 9.5 months; HR 0.70; 95% CI 0.54 - 0.90). CONCLUSION: This study suggests no impact of neutropenia-related treatment modifications on PFS and confirms inferior outcomes outside clinical trial eligibility.


Asunto(s)
Neoplasias de la Mama , Neutropenia , Humanos , Femenino , Neoplasias de la Mama/patología , Estudios Retrospectivos , Resultado del Tratamiento , Receptor ErbB-2 , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Neutropenia/inducido químicamente , Neutropenia/tratamiento farmacológico
11.
Int J Mol Sci ; 23(22)2022 Nov 08.
Artículo en Inglés | MEDLINE | ID: mdl-36430143

RESUMEN

Clark-Baraitser syndrome is a rare autosomal dominant intellectual disability syndrome caused by pathogenic variants in the TRIP12 (Thyroid Hormone Receptor Interactor 12) gene. TRIP12 encodes an E3 ligase in the ubiquitin pathway. The ubiquitin pathway includes activating E1, conjugating E2 and ligating E3 enzymes which regulate the breakdown and sorting of proteins. This enzymatic pathway is crucial for physiological processes. A significant proportion of TRIP12 variants are currently classified as variants of unknown significance (VUS). Episignatures have been shown to represent a powerful diagnostic tool to resolve inconclusive genetic findings for Mendelian disorders and to re-classify VUSs. Here, we show the results of DNA methylation episignature analysis in 32 individuals with pathogenic, likely pathogenic and VUS variants in TRIP12. We identified a specific and sensitive DNA methylation (DNAm) episignature associated with pathogenic TRIP12 variants, establishing its utility as a clinical biomarker for Clark-Baraitser syndrome. In addition, we performed analysis of differentially methylated regions as well as functional correlation of the TRIP12 genome-wide methylation profile with the profiles of 56 additional neurodevelopmental disorders.


Asunto(s)
Discapacidad Intelectual Ligada al Cromosoma X , Humanos , Facies , Ubiquitina-Proteína Ligasas/genética , Ubiquitina-Proteína Ligasas/metabolismo , Ubiquitina/metabolismo , Proteínas Portadoras/metabolismo
12.
BMC Pregnancy Childbirth ; 22(1): 612, 2022 Aug 26.
Artículo en Inglés | MEDLINE | ID: mdl-36008777

RESUMEN

BACKGROUND: Perinatal risk factors can vary by immigration status. We examined psychosocial and behavioral perinatal health indicators according to immigration status and immigrant characteristics. METHODS: We conducted a population-based cross-sectional study of 33,754 immigrant and 172,342 non-immigrant childbearing women residents in Manitoba, Canada, aged 15-55 years, who had a live birth and available data from the universal newborn screen completed within 2 weeks postpartum, between January 2000 and December 2017. Immigration characteristics were from the Canadian federal government immigration database. Logistic regressions models were used to obtain Odds Ratios (OR) with 95% confidence intervals (CI) for the associations between immigration characteristics and perinatal health indicators, such as social isolation, relationship distress, partner violence, depression, alcohol, smoking, substance use, and late initiation of prenatal care. RESULTS: More immigrant women reported being socially isolated (12.3%) than non-immigrants (3.0%) (Adjusted Odds Ratio (aOR): 6.95, 95% CI: 6.57 to 7.36) but exhibited lower odds of depression, relationship distress, partner violence, smoking, alcohol, substance use, and late initiation of prenatal care. In analyses restricted to immigrants, recent immigrants (< 5 years) had higher odds of being socially isolated (aOR: 9.04, 95% CI: 7.48 to 10.94) and late initiation of prenatal care (aOR: 1.50, 95% CI: 1.07 to 2.12) compared to long-term immigrants (10 years or more) but lower odds of relationship distress, depression, alcohol, smoking and substance use. Refugee status was positively associated with relationship distress, depression, and late initiation of prenatal care. Secondary immigrants, whose last country of permanent residence differed from their country of birth, had lower odds of social isolation, relationship distress, and smoking than primary migrants. There were also differences by maternal region of birth. CONCLUSION: Immigrant childbearing women had a higher prevalence of social isolation but a lower prevalence of other psychosocial and behavioral perinatal health indicators than non-immigrants. Health care providers may consider the observed heterogeneity in risk to tailor care approaches for immigrant subgroups at higher risk, such as refugees, recent immigrants, and those from certain world regions.


Asunto(s)
Emigrantes e Inmigrantes , Refugiados , Canadá , Estudios Transversales , Emigración e Inmigración , Femenino , Humanos , Recién Nacido , Madres , Embarazo , Refugiados/psicología
14.
Int J Circumpolar Health ; 81(1): 2089378, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-35726188

RESUMEN

PAX Good Behaviour Game (PAX-GBG) is an evidence-based approach to co-create a nurturing environment where all children can thrive. This school-based approach was identified as a promising intervention for suicide prevention by First Nations communities in Manitoba, Canada. To enhance this mental health promotion approach, PAX Dream Makers was developed. It is a youth-led addition to PAX-GBG for middle and high school students. This study's aim was to examine, from the communities' perspectives, the influence of PAX Dream Makers on youth as well as its strengths, challenges and suggestions for future improvements. A case study method was conducted using interviews and focus groups with 30 youth and 17 adult mentors and elders. Participants reported that PAX Dream Makers provided support and encouragement to the youth, increased their resilience and provided an opportunity to be positive role models. It strengthened PAX-GBG implementation in schools. Challenges included: adult mentors availability, frequent teacher turn-over and community mental distress. Suggestions expressed were: being mindful of cultural and community contexts, increasing community leadership's understanding of PAX-GBG and better recruitment of mentors and youth. PAX Dream Makers approach was well-received by communities and holds great promise for promoting the well-being of First Nations youth.


Asunto(s)
Promoción de la Salud , Instituciones Académicas , Prevención del Suicidio , Suicidio , Adolescente , Adulto , Anciano , Canadá , Niño , Promoción de la Salud/métodos , Humanos , Indígenas Norteamericanos , Manitoba , Salud Mental , Evaluación de Programas y Proyectos de Salud , Servicios de Salud Escolar , Estudiantes/psicología , Suicidio/etnología
15.
Am J Hum Genet ; 109(6): 1140-1152, 2022 06 02.
Artículo en Inglés | MEDLINE | ID: mdl-35659929

RESUMEN

In the TRIDENT-2 study, all pregnant women in the Netherlands are offered genome-wide non-invasive prenatal testing (GW-NIPT) with a choice of receiving either full screening or screening solely for common trisomies. Previous data showed that GW-NIPT can reliably detect common trisomies in the general obstetric population and that this test can also detect other chromosomal abnormalities (additional findings). However, evidence regarding the clinical impact of screening for additional findings is lacking. Therefore, we present follow-up results of the TRIDENT-2 study to determine this clinical impact based on the laboratory and perinatal outcomes of cases with additional findings. Between April 2017 and April 2019, additional findings were detected in 402/110,739 pregnancies (0.36%). For 358 cases, the origin was proven to be either fetal (n = 79; 22.1%), (assumed) confined placental mosaicism (CPM) (n = 189; 52.8%), or maternal (n = 90; 25.1%). For the remaining 44 (10.9%), the origin of the aberration could not be determined. Most fetal chromosomal aberrations were pathogenic and associated with severe clinical phenotypes (61/79; 77.2%). For CPM cases, occurrence of pre-eclampsia (8.5% [16/189] vs 0.5% [754/159,924]; RR 18.5), and birth weight <2.3rd percentile (13.6% [24/177] vs 2.5% [3,892/155,491]; RR 5.5) were significantly increased compared to the general obstetric population. Of the 90 maternal findings, 12 (13.3%) were malignancies and 32 (35.6%) (mosaic) pathogenic copy number variants, mostly associated with mild or no clinical phenotypes. Data from this large cohort study provide crucial information for deciding if and how to implement GW-NIPT in screening programs. Additionally, these data can inform the challenging interpretation, counseling, and follow-up of additional findings.


Asunto(s)
Diagnóstico Prenatal , Trisomía , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Mosaicismo , Placenta , Embarazo , Diagnóstico Prenatal/métodos
16.
Am J Med Genet C Semin Med Genet ; 190(1): 102-108, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-35488810

RESUMEN

Biallelic loss-of-function (LoF) variants in CENPF gene are responsible for Strømme syndrome, a condition presenting with intestinal atresia, anterior ocular chamber anomalies, and microcephaly. Through an international collaboration, four individuals (three males and one female) carrying CENPF biallelic variants, including two missense variants in homozygous state and four LoF variants, were identified by exome sequencing. All individuals had variable degree of developmental delay/intellectual disability and microcephaly (ranging from -2.9 SDS to -5.6 SDS) and a recognizable pattern of dysmorphic facial features including inverted-V shaped interrupted eyebrows, epicanthal fold, depressed nasal bridge, and pointed chin. Although one of the cases had duodenal atresia, all four individuals did not have the combination of internal organ malformations of Strømme syndrome (intestinal atresia and anterior eye segment abnormalities). Immunofluorescence analysis on skin fibroblasts on one of the four cases with the antibody for ARL13B that decorates primary cilia revealed shorter primary cilia that are consistent with a ciliary defect. This case-series of individuals with biallelic CENPF variants suggests the spectrum of clinical manifestations of the disorder that may be related to CENPF variants is broad and can include phenotypes lacking the cardinal features of Strømme syndrome.


Asunto(s)
Proteínas Cromosómicas no Histona , Discapacidad Intelectual , Atresia Intestinal , Microcefalia , Proteínas de Microfilamentos , Proteínas Cromosómicas no Histona/genética , Anomalías del Ojo , Femenino , Humanos , Atresia Intestinal/genética , Masculino , Microcefalia/genética , Proteínas de Microfilamentos/genética , Mutación/genética , Fenotipo
17.
J Clin Oncol ; 40(22): 2426-2435, 2022 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-35394817

RESUMEN

PURPOSE: Noninvasive prenatal testing (NIPT) for fetal aneuploidy screening using cell-free DNA derived from maternal plasma can incidentally raise suspicion for cancer. Diagnostic routing after malignancy suspicious-NIPT faces many challenges. Here, we detail malignancy suspicious-NIPT cases, and describe the clinical characteristics, chromosomal aberrations, and diagnostic routing of the patients with a confirmed malignancy. Clinical lessons can be learned from our experience. METHODS: Patients with NIPT results indicative of a malignancy referred for tumor screening between April 2017 and April 2020 were retrospectively included from a Dutch nationwide NIPT implementation study, TRIDENT-2. NIPT profiles from patients with confirmed malignancies were reviewed, and the pattern of chromosomal aberrations related to tumor type was analyzed. We evaluated the diagnostic contribution of clinical and genetic examinations. RESULTS: Malignancy suspicious-NIPT results were reported in 0.03% after genome-wide NIPT, and malignancies confirmed in 16 patients (16/48, 33.3%). Multiple chromosomal aberrations were seen in 23 of 48 patients with genome-wide NIPT, and a malignancy was confirmed in 16 patients (16/23, 69.6%). After targeted NIPT, 0.005% malignancy suspicious-NIPT results were reported, in 2/3 patients a malignancy was confirmed. Different tumor types and stages were diagnosed, predominantly hematologic malignancies (12/18). NIPT data showed recurrent gains and losses in primary mediastinal B-cell lymphomas and classic Hodgkin lymphomas. Magnetic resonance imaging and computed tomography were most informative in diagnosing the malignancy. CONCLUSION: In 231,896 pregnant women, a low percentage (0.02%) of NIPT results were assessed as indicative of a maternal malignancy. However, when multiple chromosomal aberrations were found, the risk of a confirmed malignancy was considerably high. Referral for extensive oncologic examination is recommended, and may be guided by tumor-specific hallmarks in the NIPT profile.


Asunto(s)
Neoplasias , Diagnóstico Prenatal , Aneuploidia , Aberraciones Cromosómicas , Femenino , Estudios de Seguimiento , Humanos , Embarazo , Diagnóstico Prenatal/métodos , Estudios Retrospectivos
18.
Am J Med Genet A ; 188(5): 1578-1582, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35084080

RESUMEN

Previously, mutations in the AMMECR1 gene have been described in six males with developmental delay, sensorineural hearing loss (SNHL) and/or congenital abnormalities, including fetal nuchal edema, fetal pericardial effusion, talipes, congenital hip dysplasia, elliptocytosis and cleft palate. In this report, we present three female relatives of a male fetus with an intragenic deletion in this X-linked gene. All three women reported hearing loss and one was born with a soft cleft palate and hip dysplasia. The audiograms showed mild to moderate SNHL with a variable pattern of the affected frequencies. Immunohistochemical analysis of fetal cochlea was performed confirming the expression of AMMECR1 in the human inner ear. Since hearing loss, cleft palate and congenital hip dysplasia were reported before in male AMMECR1 point mutation carriers and AMMECR1 is expressed in fetal inner ear, we suggest that female carriers may display a partial phenotype in this X-linked condition.


Asunto(s)
Fisura del Paladar , Sordera , Eliptocitosis Hereditaria , Pérdida Auditiva Sensorineural , Pérdida Auditiva , Luxación Congénita de la Cadera , Fisura del Paladar/diagnóstico , Fisura del Paladar/genética , Eliptocitosis Hereditaria/genética , Femenino , Pérdida Auditiva/genética , Pérdida Auditiva Sensorineural/diagnóstico , Pérdida Auditiva Sensorineural/genética , Humanos , Masculino , Proteínas/genética
19.
Can J Psychiatry ; 67(7): 512-523, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-34796744

RESUMEN

OBJECTIVE: The life course of children and adolescents with mental disorders is an important area of investigation, yet it remains understudied. This study provides a first-ever comprehensive examination of the relationship between child and adolescent mental disorders and subsequent suicidal and adverse social outcomes in early adulthood using population-based data. METHODS: De-identified administrative databases were used to create a birth cohort of 60,838 residents of Manitoba born between April 1980 to March 1985 who were followed until March 2015. Unadjusted and adjusted hazard ratios (aHRs) and odds ratios (aORs) were calculated to determine associations between physician-diagnosed mental disorders in childhood or adolescence and a range of adverse early adulthood (ages 18 to 35) outcomes. RESULTS: Diagnoses of mood/anxiety disorders, attention-deficit hyperactivity disorder, substance use disorder, conduct disorder, psychotic disorder, personality disorders in childhood or adolescence were associated with having the same diagnoses in adulthood. These mental disorder diagnoses in childhood/adolescence were strongly associated with an increased risk of suicidal behaviors and adverse adult social outcomes in adulthood. Similarly, suicide attempts in adolescence conferred an increased risk in adulthood of suicide death (aHR: 3.6; 95% confidence interval [CI]: 1.9-6.9), suicide attempts (aHR: 6.2; CI: 5.0-7.6), social housing use (aHR: 1.7; CI 1.4-2.1), income assistance (aHR: 1.8; CI 1.6-2.1), criminal accusation (aHR: 2.2; CI 2.0-2.5), criminal victimization (aHR:2.5; CI 2.2-2.7), and not completing high school (aOR: 3.1; CI: 2.5-3.9). CONCLUSION: Mental disorders diagnosed in childhood and adolescence are important risk factors not only for mental disorders in adulthood but also for a range of early adult adversity. These findings provide an evidence-based prognosis of children's long-term well-being and a rationale for ensuring timely access to mental health services. Better population-level mental health promotion and early intervention for children and adolescents with mental disorders are promising for improving future adult outcomes.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastornos Mentales , Adolescente , Adulto , Ansiedad , Niño , Humanos , Trastornos Mentales/epidemiología , Trastornos del Humor/diagnóstico , Trastornos del Humor/epidemiología , Factores de Riesgo , Ideación Suicida , Intento de Suicidio/psicología , Adulto Joven
20.
Clin Genet ; 101(1): 65-77, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34611884

RESUMEN

Prenatal exome sequencing (pES) is a promising tool for diagnosing genetic disorders when structural anomalies are detected on prenatal ultrasound. The aim of this study was to investigate the diagnostic yield and clinical impact of pES as an additional modality for fetal neurologists who counsel parents in case of congenital anomalies of the central nervous system (CNS). We assessed 20 pregnancies of 19 couples who were consecutively referred to the fetal neurologist for CNS anomalies. pES had a diagnostic yield of 53% (10/19) with most diagnosed pregnancies having agenesis or hypoplasia of the corpus callosum (7/10). Overall clinical impact was 63% (12/19), of which the pES result aided parental decision making in 55% of cases (6/11), guided perinatal management in 75% of cases (3/4), and was helpful in approving a late termination of pregnancy request in 75% of cases (3/4). Our data suggest that pES had a high diagnostic yield when CNS anomalies are present, although this study is limited by its small sample size. Moreover, pES had substantial clinical impact, which warrants implementation of pES in the routine care of the fetal neurologist in close collaboration with gynecologists and clinical geneticists.


Asunto(s)
Secuenciación del Exoma , Feto/anomalías , Malformaciones del Sistema Nervioso/diagnóstico , Malformaciones del Sistema Nervioso/genética , Diagnóstico Prenatal/métodos , Toma de Decisiones Clínicas , Consanguinidad , Manejo de la Enfermedad , Femenino , Feto/diagnóstico por imagen , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Humanos , Malformaciones del Sistema Nervioso/terapia , Neurólogos , Embarazo , Resultado del Embarazo , Ultrasonografía Prenatal , Secuenciación del Exoma/métodos
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