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1.
MMW Fortschr Med ; 166(15): 74, 2024 09.
Artículo en Alemán | MEDLINE | ID: mdl-39266859
3.
MMW Fortschr Med ; 166(14): 65, 2024 09.
Artículo en Alemán | MEDLINE | ID: mdl-39210142
4.
MMW Fortschr Med ; 166(14): 65, 2024 09.
Artículo en Alemán | MEDLINE | ID: mdl-39210140
5.
Diabetes Care ; 47(10): 1808-1817, 2024 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-39186468

RESUMEN

OBJECTIVE: This study was conducted to evaluate the effects of early clinical diagnosis of type 1 diabetes by comparison of clinical parameters at diagnosis and during follow-up in patients with pediatric type 1 diabetes with early, intermediate, and late diagnosis. RESEARCH DESIGN AND METHODS: In a population-based analysis, data on 14,292 pediatric patients with type 1 diabetes diagnosed between 2015 and 2019 were retrieved from the Diabetes Prospective Documentation (DPV) registry in March 2023. Patients were divided into four groups: one with diabetic ketoacidosis (DKA) at diagnosis and three with early, intermediate, or late diagnosis based on age-dependent HbA1c terciles. Laboratory-measured HbA1c values and those estimated from continuous glucose monitoring were aggregated as a combined glucose indicator (CGI). Insulin dose-adjusted CGI values <9% were defined as partial remission. RESULTS: At diagnosis, patients had a median age of 9.8 years (IQR 6.8; 13.0). Three years later, patients with early diagnosis had lower CGI than patients with late diagnosis or DKA (mean [95% CI] 7.46% [7.40; 7.53] vs. 7.81% [7.75; 7.87] or 7.74% [7.68; 7.79], respectively; each P < 0.001). More patients experienced partial remission (12.6% [11.0; 14.4] vs. 9.1% [7.7; 10.7] or 8.6% [7.3; 10.0]; each P < 0.001), and 11.7% [10.2; 13.5] of patients with intermediate diagnosis were in partial remission. CONCLUSIONS: Early clinical diagnosis of type 1 diabetes may be beneficial for metabolic control and remission after 3 years of follow-up. Patients diagnosed early may represent a distinct group with better resources or with a different disease biology and slower ß-cell destruction, which needs further evaluation.


Asunto(s)
Diabetes Mellitus Tipo 1 , Sistema de Registros , Humanos , Diabetes Mellitus Tipo 1/diagnóstico , Diabetes Mellitus Tipo 1/sangre , Diabetes Mellitus Tipo 1/tratamiento farmacológico , Niño , Femenino , Masculino , Adolescente , Hemoglobina Glucada/metabolismo , Cetoacidosis Diabética/diagnóstico , Cetoacidosis Diabética/epidemiología , Diagnóstico Precoz , Preescolar , Glucemia/metabolismo , Glucemia/análisis , Diagnóstico Tardío , Estudios Prospectivos
7.
Sci Rep ; 14(1): 17009, 2024 07 23.
Artículo en Inglés | MEDLINE | ID: mdl-39043731

RESUMEN

The aim of this study is to evaluate the accuracy of outcome reporting after elective visceral surgery in a low volume district hospital. Outcome measurement as well as transparent reporting of surgical complications becomes more and more important. In the future, financial and personal resources may be distributed due to reported quality and thus, it is in the main interest of healthcare providers that outcome data are accurately collected. Between 10/2020 and 09/2021 postoperative complications during the hospitalisation were recorded using the Clavien-Dindo classification (CDC) and comprehensive complication index by residents of a surgical department in a district hospital. After one year of prospective data collection, data were retrospectively analyzed and re-evaluated for accuracy by senior consultant surgeons. In 575 patients undergoing elective general or visceral surgery interns and residents reported an overall rate of patients with complications of 7.3% (n = 42) during the hospitalization phase, whereas a rate of 18.3% (n = 105) was revealed after retrospective analysis by senior consultant surgeons. Thus, residents failed to report patients with postoperative complications in 60% of cases (63/105). In the 42 cases, in which complications were initially reported, the grading of complications was correct only in 33.3% of cases (n = 14). Complication grades that were most missed were CDC grade I and II. Quality of outcome measurement in a district hospital is poor if done by unexperienced residents and significantly underestimates the true complication rate. Outcome measurement must be done or supervised by experienced surgeons to ensure correct and reliable outcome data.


Asunto(s)
Internado y Residencia , Complicaciones Posoperatorias , Humanos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Masculino , Femenino , Incidencia , Estudios Retrospectivos , Persona de Mediana Edad , Anciano , Hospitales de Bajo Volumen , Adulto , Procedimientos Quirúrgicos Electivos/efectos adversos , Evaluación de Resultado en la Atención de Salud/métodos
8.
BMC Pediatr ; 24(1): 355, 2024 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-38778341

RESUMEN

BACKGROUND: Counselling adolescents with chronic medical conditions (CMCs) can be challenging regarding suitable interviewing skills and clinicians' attitudes toward the patient. Successful communication can be a key element of treatment. Motivational Interviewing (MI) is broadly applicable in managing behavioural problems and diseases by increasing patient motivation for lifestyle changes. However, data concerning the applicability, feasibility and implementation of MI sessions in everyday practice are missing from the physicians' point of view. METHOD: The present study was conducted as a mixed methods design. Twenty paediatricians were randomized to a 2-day MI course followed by MI consultations. Data were collected through a questionnaire one year after MI training. Factors for effective training and possible barriers to successful use of MI were examined. RESULTS: Completed questionnaires were returned by 19 of 20 paediatricians. The paediatricians' experiences with MI demonstrate that MI is regarded as a valuable tool when working with adolescents with CMCs. 95% of all respondents reported that they found MI education necessary for their clinical work and were using it also outside the COACH-MI study context. 73.7% percent saw potential to strengthen the connection to their patients by using MI. The doctors were already using more MI conversation techniques after a 2-day MI course. Obstacles were seen in the short training, the lack of time and missing undisturbed environment (interruptions by telephone, staff, etc.) during clinical flow. CONCLUSIONS: MI techniques are not yet a regular part of medical training. However, a 2-day MI course was rated effective and provided a lasting impact by physicians caring for children and adolescents with chronic medical conditions (CMCs), although booster sessions should be offered regularly. TRIAL REGISTRATION: The study was registered in the German Clinical Trials Register (DRKS00014043) on 26/04/2018.


Asunto(s)
Actitud del Personal de Salud , Entrevista Motivacional , Pediatras , Humanos , Entrevista Motivacional/métodos , Adolescente , Enfermedad Crónica/terapia , Femenino , Masculino , Pediatras/educación , Pediatras/psicología , Adulto , Encuestas y Cuestionarios , Relaciones Médico-Paciente , Persona de Mediana Edad , Pediatría/educación
9.
JAMA Pediatr ; 178(6): 577-585, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38557708

RESUMEN

Importance: Perinatal stress and fetal growth restriction increase the risk of neonatal hypoglycemia. The underlying pathomechanism is poorly understood. In a sheep model, elevated catecholamine concentrations were found to suppress intrauterine insulin secretion, followed by hyperresponsive insulin secretion once the adrenergic stimulus subsided. Objective: To determine whether neonates with risk factors for hypoglycemia have higher catecholamine concentrations in umbilical cord blood (UCB) and/or amniotic fluid (AF) and whether catecholamines are correlated with postnatal glycemia. Design, Setting, and Participants: In a prospective cohort study of 328 neonates at a tertiary perinatal center from September 2020 through May 2022 in which AF and UCB were collected immediately during and after delivery, catecholamines and metanephrines were analyzed using liquid chromatography with tandem mass spectrometry. Participants received postnatal blood glucose (BG) screenings. Exposure: Risk factor for neonatal hypoglycemia. Main Outcomes and Measures: Comparison of catecholamine and metanephrine concentrations between at-risk neonates and control participants, and correlation of concentrations of catecholamines and metanephrines with the number and severity of postnatal hypoglycemic episodes. Results: In this study of 328 neonates (234 in the risk group: median [IQR] gestational age, 270 [261-277] days; and 94 in the control group: median [IQR] gestational age, 273 [270-278] days), growth-restricted neonates showed increased UCB median (IQR) concentrations of norepinephrine (21.10 [9.15-42.33] vs 10.88 [5.78-18.03] nmol/L; P < .001), metanephrine (0.37 [0.13-1.36] vs 0.12 [0.08-0.28] nmol/L; P < .001), and 3-methoxytyramine (0.149 [0.098-0.208] vs 0.091 [0.063-0.149] nmol/L; P = .001). Neonates with perinatal stress had increased UCB median (IQR) concentrations of norepinephrine (22.55 [8.99-131.66] vs 10.88 [5.78-18.03] nmol/L; P = .001), normetanephrine (1.75 [1.16-4.93] vs 1.25 [0.86-2.56] nmol/L; P = .004), and 3-methoxytyramine (0.120 [0.085-0.228] vs 0.091 [0.063-0.149] nmol/L; P = .008) (P < .0083 was considered statistically significant). Concentrations of UCB norepinephrine, metanephrine, and 3-methoxytyramine were negatively correlated with AF C-peptide concentration (rs = -0.212, P = .005; rs = -0.182, P = .016; and rs = -0.183, P = .016, respectively [P < .017 was considered statistically significant]). Concentrations of UCB norepinephrine, metanephrine, and 3-methoxytyramine were positively correlated with the number of hypoglycemic episodes (BG concentration of 30-45 mg/dL) (rs = 0.146, P = .01; rs = 0.151, P = .009; and rs = 0.180, P = .002, respectively). Concentrations of UCB metanephrine and 3-methoxytyramine were negatively correlated with the lowest measured BG concentration (rs = -0.149, P = .01; and rs = -0.153, P = .008, respectively). Conclusions and Relevance: Neonates at risk for hypoglycemia displayed increased catecholamine and metanephrine concentrations that were correlated with postnatal hypoglycemic episodes and lower BG levels; these results are consistent with findings in a sheep model that fetal catecholamines are associated with neonatal ß-cell physiology and that perinatal stress or growth restriction is associated with subsequent neonatal hyperinsulinemic hypoglycemia. Improving the pathomechanistic understanding of neonatal hypoglycemia may help to guide management of newborns at risk for hypoglycemia.


Asunto(s)
Catecolaminas , Hipoglucemia , Humanos , Hipoglucemia/metabolismo , Hipoglucemia/diagnóstico , Hipoglucemia/sangre , Recién Nacido , Femenino , Catecolaminas/metabolismo , Catecolaminas/sangre , Masculino , Estudios Prospectivos , Sangre Fetal/metabolismo , Sangre Fetal/química , Factores de Riesgo , Líquido Amniótico/metabolismo , Líquido Amniótico/química , Metanefrina/sangre , Glucemia/análisis , Glucemia/metabolismo , Embarazo , Enfermedades del Recién Nacido/metabolismo
10.
Arthritis Res Ther ; 26(1): 82, 2024 Apr 10.
Artículo en Inglés | MEDLINE | ID: mdl-38600543

RESUMEN

BACKGROUND: Previous studies have shown that growing up with rheumatic conditions can fuel dissatisfaction and psychological distress, which in turn affects disease self-management and treatment adherence. Primary objective of this study was to estimate the prevalence of anxiety and depression symptoms in adolescents and young adults (AYA) with juvenile idiopathic arthritis (JIA) and to identify correlates of conspicuous screening results. METHODS: Initiated as part of the COACH multicenter observational study, outpatients aged 12 to 21 years participating in the National Pediatric Rheumatological Database (NPRD) were prospectively screened for mental health using the Patient Health Questionnaire-9 (PHQ-9) and the Generalised Anxiety Disorder Scale-7 (GAD-7). RESULTS: Data from 1,150 adolescents with JIA (mean age 15.6 ± 2.2 years; mean disease duration 7.2 ± 4.9 years, 69% female, 43% oligoarthritis, 26% polyarthritis) were analysed. Overall, 32.7% (n = 316) of AYA showed conspicuous screening results, of whom 30.4% reported clinically relevant suicidal or self-harm thoughts. About 19% of screened patients showed moderate to severe depressive or anxious symptoms. AYA with conspicuous screening results were older (15.8 vs. 15.2 years; p < 0.0001), more often female (81% vs. 64%; p < 0.0001) and more often overweight (25% vs. 17%; p = 0.006). They had higher disease activity (physician global assessment on NRS 0-10; 1.7 vs. 1.2; p < 0.0001), more functional limitations (CHAQ; 0.44 vs. 0.14; <0.0001) and rated their health status worse (NRS 0-10; 3.5 vs. 1.8; p < 0.0001) than AYA with inconspicuous screening results. Females (OR 2.33 [CI 1.53-3.56]; p < 0.0001), older age (OR 1.09 [CI 1.01-1.18]; p = 0.026), patients with more functional limitations (OR 3.36 [CI 1.98-5.72]; p < 0.0001), and patients with worse subjective health status (OR 1.17 [CI 1.07-1.27]; p < 0.0001) were more likely to have a conspicuous screening result. Regular sports participation was associated with a lower likelihood of conspicuous screening result (OR 0.69 [CI 0.49-0.98]; p = 0.039). CONCLUSIONS: A large-scale outpatient screening of AYA with JIA in Germany shows a high prevalence of anxiety and depression symptoms. The need for routine screening for early detection of mental health problems became apparent.


Asunto(s)
Artritis Juvenil , Pacientes Ambulatorios , Niño , Humanos , Adolescente , Femenino , Adulto Joven , Masculino , Depresión/diagnóstico , Depresión/epidemiología , Depresión/psicología , Artritis Juvenil/diagnóstico , Artritis Juvenil/epidemiología , Artritis Juvenil/psicología , Ansiedad/epidemiología , Salud Mental
11.
JAMA Netw Open ; 7(3): e243683, 2024 Mar 04.
Artículo en Inglés | MEDLINE | ID: mdl-38530314

RESUMEN

Importance: The circumstances under which neonatal hypoglycemia leads to brain damage remain unclear due to a lack of long-term data on the neurodevelopment of affected children. As a result, diagnostic strategies and treatment recommendations are inconsistent. Objective: To evaluate whether the occurrence of severe transitional neonatal hypoglycemia (defined as having at least 1 blood glucose measurement of 30 mg/dL or below) is associated with adverse neurodevelopment in midchildhood. Design, Setting, and Participants: This cohort study using neurodevelopmental testing of a retrospectively recruited cohort was conducted at a single-center tertiary hospital in Germany between March 2022 and February 2023. Children with neonatal blood glucose screening data were randomly selected from all births between 2010 and 2015. Frequency matching for sex, birth weight, gestational age, socioeconomic status, and primary risk factors for neonatal hypoglycemia was performed. Children with persistent hypoglycemia diseases or any risk factor for adverse neurodevelopment except hypoglycemia were excluded. Data were analyzed between February 2023 and March 2023. Exposure: At least 1 neonatal hypoglycemia measurement with blood glucose measuring 30 mg/dL or below vs all measured blood glucose levels above 30 mg/dL during postnatal blood glucose screening starting on the first day of life. Main Outcomes and Measures: Cognitive function measured by full-scale IQ test. Secondary outcomes included standardized scales of motor, visual, and executive functions, and child behavior, each measured at ages 7 to 11 years. Results: A total of 140 children (mean [SD] age 9.1 [1.3] years; 77 male [55.0%]) participated in the study. Children with severe neonatal hypoglycemia had a 4.8 points lower mean full-scale IQ than controls (107.0 [95% CI, 104.0-109.9] vs 111.8 [95% CI, 108.8-114.8]). They showed a 4.9-fold (95% CI, 1.5-15.5) increased odds of abnormal fine motor function and a 5.3-fold (95% CI, 2.1-13.3) increased odds of abnormal visual-motor integration. Significantly higher T scores for attention problems (58.2 [95% CI, 56.1-60.2] vs 54.6 [95% CI, 52.6-56.6]) and attention-deficit/hyperactivity disorder symptoms (58.2 [95% CI, 56.2-60.2] vs 54.7 [95% CI, 52.8-56.7]) were reported by parents. Conclusions and Relevance: Neonatal hypoglycemia with blood glucose levels of 30 mg/dL or below was associated with an increased risk for suboptimal neurodevelopmental outcomes in midchildhood. These findings imply that treatment strategies should aim to prevent episodes of hypoglycemia at these severely low levels.


Asunto(s)
Hipoglucemia , Enfermedades del Recién Nacido , Niño , Recién Nacido , Humanos , Masculino , Glucemia , Estudios de Cohortes , Estudios Retrospectivos , Hipoglucemia/diagnóstico , Hipoglucemia/epidemiología , Enfermedades del Recién Nacido/diagnóstico , Enfermedades del Recién Nacido/epidemiología , Enfermedad Aguda
12.
Int J Mol Sci ; 25(2)2024 01 20.
Artículo en Inglés | MEDLINE | ID: mdl-38279270

RESUMEN

The BiP co-chaperone DNAJC3 protects cells during ER stress. In mice, the deficiency of DNAJC3 leads to beta-cell apoptosis and the gradual onset of hyperglycemia. In humans, biallelic DNAJC3 variants cause a multisystem disease, including early-onset diabetes mellitus. Recently, hyperinsulinemic hypoglycemia (HH) has been recognized as part of this syndrome. This report presents a case study of an individual with HH caused by DNAJC3 variants and provides an overview of the metabolic phenotype of individuals with HH and DNAJC3 variants. The study demonstrates that HH may be a primary symptom of DNAJC3 deficiency and can persist until adolescence. Additionally, glycemia and insulin release were analyzed in young DNACJ3 knockout (K.O.) mice, which are equivalent to human infants. In the youngest experimentally accessible age group of 4-week-old mice, the in vivo glycemic phenotype was already dominated by a reduced total insulin secretion capacity. However, on a cellular level, the degree of insulin release of DNAJC3 K.O. islets was higher during periods of increased synthetic activity (high-glucose stimulation). We propose that calcium leakage from the ER into the cytosol, due to disrupted DNAJC3-controlled gating of the Sec61 channel, is the most likely mechanism for HH. This is the first genetic mechanism explaining HH solely by the disruption of intracellular calcium homeostasis. Clinicians should screen for HH in DNAJC3 deficiency and consider DNAJC3 variants in the differential diagnosis of congenital hyperinsulinism.


Asunto(s)
Hiperinsulinismo Congénito , Proteínas del Choque Térmico HSP40 , Adolescente , Animales , Humanos , Ratones , Calcio/metabolismo , Hiperinsulinismo Congénito/genética , Proteínas del Choque Térmico HSP40/genética , Proteínas del Choque Térmico HSP40/metabolismo , Insulina/metabolismo , Secreción de Insulina , Chaperonas Moleculares/genética , Chaperonas Moleculares/metabolismo
13.
Horm Metab Res ; 56(3): 223-234, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38168730

RESUMEN

For treatment of type 1 diabetes mellitus, a combination of immune-based interventions and medication to promote beta-cell survival and proliferation has been proposed. Dextromethorphan (DXM) is an N-methyl-D-aspartate receptor antagonist with a good safety profile, and to date, preclinical and clinical evidence for blood glucose-lowering and islet-cell-protective effects of DXM have only been provided for animals and individuals with type 2 diabetes mellitus. Here, we assessed the potential anti-diabetic effects of DXM in the non-obese diabetic mouse model of type 1 diabetes. More specifically, we showed that DXM treatment led to five-fold higher numbers of pancreatic islets and more than two-fold larger alpha- and beta-cell areas compared to untreated mice. Further, DXM treatment improved glucose homeostasis and reduced diabetes incidence by 50%. Our data highlight DXM as a novel candidate for adjunct treatment of preclinical or recent-onset type 1 diabetes.


Asunto(s)
Diabetes Mellitus Tipo 1 , Diabetes Mellitus Tipo 2 , Islotes Pancreáticos , Ratones , Animales , Ratones Endogámicos NOD , Dextrometorfano/farmacología , Dextrometorfano/uso terapéutico , Receptores de N-Metil-D-Aspartato/uso terapéutico , Diabetes Mellitus Tipo 1/tratamiento farmacológico , Insulina , Glucemia , Homeostasis
14.
J Adolesc Health ; 74(4): 847-849, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38206222

RESUMEN

PURPOSE: The impact of the COVID-19 pandemic on the mental health of adolescents is of great concern, especially in the vulnerable group of adolescents with chronic medical conditions. The aim of this study was to examine this impact on the mental health of adolescents with chronic medical conditions treated in a German pediatric outpatient clinic. METHODS: Changes in the mental health status of adolescents with chronic medical conditions treated in a German pediatric outpatient clinic during the COVID-19 pandemic were explored via validated screening tools for anxiety and depression. RESULTS: The relative risk for adolescents with chronic medical conditions to develop clinically relevant symptoms of anxiety or depression was significantly higher (odds ratio 1,78 [confidence interval 1.06-3.04]) during the pandemic. DISCUSSION: This study identifies the COVID-19 pandemic as a potential additional risk for adolescents with chronic medical conditions to develop clinically relevant signs of anxiety or depression.


Asunto(s)
COVID-19 , Niño , Humanos , Adolescente , Salud Mental , Pandemias , Ansiedad/epidemiología , Instituciones de Atención Ambulatoria , Depresión/epidemiología
15.
Child Adolesc Psychiatry Ment Health ; 17(1): 142, 2023 Dec 21.
Artículo en Inglés | MEDLINE | ID: mdl-38129890

RESUMEN

BACKGROUND: The daily demands of type 1 diabetes management may jeopardize adolescents' mental health. We aimed to assess anxiety and depression symptoms by broad-scale, tablet-based outpatient screening in adolescents with type 1 diabetes in Germany. METHODS: Adolescent patients with type 1 diabetes mellitus (n = 2,394; mean age 15.4 y [SD 2.0]; 50.7% male) were screened for anxiety (GAD-7) and depression symptoms (PHQ-9) by self-report questionnaires and linked to clinical data from the DPV patient registry. Logistic regression was used to estimate the contribution of clinical parameters to positive screening results. RESULTS: Altogether, 30.2% showed a positive screening (score ≥ 7 in either test), and 11.3% reported suicidal ideations or self-harm. Patients with anxiety and depression symptoms were older (15.7 y [CI 15.5-15.8] vs. 15.3 y [CI 15.2-15.4]; p < 0.0001), had higher HbA1c levels (7.9% [CI 7.8-8.0] (63 mmol/mol) vs. 7.5% [CI 7.4-7.5] (58 mmol/mol); p < 0.0001), and had higher hospitalization rates. Females (adjusted odds ratio (aOR) 2.66 [CI 2.21-3.19]; p < 0.0001), patients > 15 years (aOR 1.40 [1.16-1.68]; p < 0.001), who were overweight (aOR 1.40 [CI 1.14-1.71]; p = 0.001), with HbA1c > 9% (> 75 mmol/mol; aOR 2.58 [1.83-3.64]; each p < 0.0001), with a migration background (aOR 1.46 [CI 1.17-1.81]; p < 0.001), or smoking (aOR 2.72 [CI 1.41-5.23]; p = 0.003) had a higher risk. Regular exercise was a significant protective factor (aOR 0.65 [CI 0.51-0.82]; p < 0.001). Advanced diabetes technologies did not influence screening outcomes. CONCLUSIONS: Electronic mental health screening was implemented in 42 centers in parallel, and outcomes showed an association with clinical parameters from sociodemographic, lifestyle, and diabetes-related data. It should be integrated into holistic patient counseling, enabling early recognition of mild mental health symptoms for preventive measures. Females were disproportionally adversely affected. The use of advanced diabetes technologies did not yet reduce the odds of anxiety and depression symptoms in this cross-sectional assessment.

16.
Orphanet J Rare Dis ; 18(1): 360, 2023 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-37974153

RESUMEN

BACKGROUND: Hypoketotic hypoglycaemia with suppressed plasma fatty acids and detectable insulin suggests congenital hyperinsulinism (CHI). Severe hypoketotic hypoglycaemia mimicking hyperinsulinism but without detectable insulin has recently been described in syndromic individuals with mosaic genetic activation of post-receptor insulin signalling. We set out to expand understanding of this entity focusing on metabolic phenotypes. METHODS: Metabolic profiling, candidate gene and exome sequencing were performed in six infants with hypoketotic, hypoinsulinaemic hypoglycaemia, with or without syndromic features. Additional signalling studies were carried out in dermal fibroblasts from two individuals. RESULTS: Two infants had no syndromic features. One was mistakenly diagnosed with CHI. One had mild features of megalencephaly-capillary malformation-polymicrogyria (MCAP) syndrome, one had non-specific macrosomia, and two had complex syndromes. All required intensive treatment to maintain euglycaemia, with CHI-directed therapies being ineffective. Pathogenic PIK3CA variants were found in two individuals - de novo germline c.323G>A (p.Arg108His) in one non-syndromic infant and postzygotic mosaic c.2740G>A (p.Gly914Arg) in the infant with MCAP. No causal variants were proven in the other individuals despite extensive investigation, although rare variants in mTORC components were identified in one. No increased PI3K signalling in fibroblasts of two individuals was seen. CONCLUSIONS: We expand the spectrum of PI3K-related hypoinsulinaemic hypoketotic hypoglycaemia. We demonstrate that pathogenic germline variants activating post-insulin-receptor signalling may cause non-syndromic hypoinsulinaemic hypoketotic hypoglycaemia closely resembling CHI. This distinct biochemical footprint should be sought and differentiated from CHI in infantile hypoglycaemia. To facilitate adoption of this differential diagnosis, we propose the term "pseudohyperinsulinism".


Asunto(s)
Hiperinsulinismo Congénito , Proteínas Proto-Oncogénicas c-akt , Lactante , Humanos , Proteínas Proto-Oncogénicas c-akt/genética , Insulina , Hiperinsulinismo Congénito/genética , Fosfatidilinositol 3-Quinasas/metabolismo
17.
MMW Fortschr Med ; 165(Suppl 3): 82, 2023 10.
Artículo en Alemán | MEDLINE | ID: mdl-37857974
18.
MMW Fortschr Med ; 165(Suppl 3): 82, 2023 10.
Artículo en Alemán | MEDLINE | ID: mdl-37857975
19.
MMW Fortschr Med ; 165(16): 66, 2023 09.
Artículo en Alemán | MEDLINE | ID: mdl-37710131
20.
MMW Fortschr Med ; 165(17): 66, 2023 10.
Artículo en Alemán | MEDLINE | ID: mdl-37759031
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