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x
- MeSH
- cystická fibróza * diagnóza terapie MeSH
- diagnostické zobrazování metody MeSH
- dítě MeSH
- genetické testování metody MeSH
- infekce dýchací soustavy etiologie MeSH
- lidé MeSH
- opožděná diagnóza * MeSH
- screeningové diagnostické programy MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- kazuistiky MeSH
Background: The proportion of intensive care unit (ICU) admissions in children that have and have not been directly caused by SARS-CoV-2 remains unclear. The aim of the study is to analyse a cohort of children admitted to the ICU with SARS-CoV-2 and determine whether the infection was the primary cause of their hospitalisation, a significant contributor, a suspected accomplice, or an incidental finding. Methods: This was a retrospective observational study of all the children admitted to the ICU with SARS-CoV-2 from March 2020 to February 2022 from the South Moravia region. The aim of the study was to assess whether the hospitalisation was likely to be directly caused by the virus (i.e., patients with acute COVID-19; the COVID group), whether the virus was a significant contributor to the hospitalisation (i.e., patients with multisystem inflammatory syndrome in children due to COVID-19; the MIS-C group), whether it may have contributed to the worsening of their underlying disease (the WORSENING group), or whether it was an incidental finding very likely unrelated to hospitalisation where SARS-CoV-2 positivity merely placed patients in the COVID-19 unit (the ISOLATION group). The groups were compared using a series of secondary outcomes. Results: The study population represented 150 paediatric ICU cases (age 8.6; IQR 3.5−13.3 years), with 66.7% being male. The COVID group represented 32.7% of cases (49/150); MIS-C, 30% (45/150); WORSENING, 14.7% (22/150); and ISOLATION, 22.7% (34/150). The median length of hospitalisation was found for the MIS-C group (11 days; 9 days in the ICU), the COVID group (6 days; five days in the ICU), WORSENING group (4.5 days; 4.5 days in the ICU) and the ISOLATION group (5.5 days; 3.5 days in the ICU), where the difference was significant (p < 0.001). Asymptomatic and mild cases were most common in the WORSENING (36.4% and 63.6%) and ISOLATION (52.9% and 44.1%) groups. Severe and critical cases were only present in the COVID (6.1% and 12.2%) and MIS-C (4.4% and 11.1%) groups; the severity difference was significant (p < 0.001). The groups did not differ significantly in the proportion of complete recovery and short- and long-term sequelae (p = 0.09). Conclusions: Patients with acute COVID-19 accounted for one-third of all ICU admissions, patients with MIS-C accounted for approximately another third, patients with worsening underlying disease accounted for 15%, and patients with incidental findings of SARS-CoV-2 positivity accounted for one-fifth of ICU admissions. A more significant disease was seen with acute COVID-19 and MIS-C.
- Publikační typ
- časopisecké články MeSH
AIM: The primary goal was to determine the yield of next-generation sequencing (NGS) epilepsy gene panels used for epilepsy etiology diagnosing using a multidisciplinary approach and to demonstrate the importance of genotype-phenotype correlations. The secondary goal was to evaluate the application of precision medicine in selected patients. METHODS: This single-center retrospective study included a total of 175 patients (95 males and 80 females) aged 0-19 years. They were examined between 2015 and 2020 using an NGS epilepsy gene panel (270 genes). A bioinformatic analysis was performed including copy number variation identification. Thorough genotype-phenotype correlation was performed. RESULTS: Out of 175 patients, described pathogenic variants or novel variants with clear pathogenic impact were identified in 30 patients (17.14%). Genotype-phenotype correlations and parental DNA analysis were performed, and genetic diagnosis was confirmed on the basis of the results in another 16 out of 175 patients (9.14%). The diagnostic yield of our study increased from 30 to 46 patients (by 53.33%) by the precise genotype-phenotype correlation. INTERPRETATION: We emphasize a complex genotype-phenotype correlation and a multidisciplinary approach in evaluating the results of the NGS epilepsy gene panel, which enables the most accurate genetic diagnosis and correct interpretation of results.
- MeSH
- epilepsie * diagnóza genetika MeSH
- fenotyp MeSH
- genetické asociační studie MeSH
- genetické testování metody MeSH
- lidé MeSH
- mutace MeSH
- retrospektivní studie MeSH
- variabilita počtu kopií segmentů DNA * MeSH
- vysoce účinné nukleotidové sekvenování metody MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
BACKGROUND: Impulsivity is a core symptom of borderline personality disorder (BPD). Impulsivity is a heterogeneous concept, and a comprehensive evaluation of impulsivity dimensions is lacking in the literature. Moreover, it is unclear whether BPD patients manifest impaired cognitive functioning that might be associated with impulsivity in another patient group, such as ADHD, a frequent comorbidity of BPD. METHODS: We tested 39 patients with BPD without major psychiatric comorbidities and ADHD, 25 patients with ADHD, and 55 healthy controls (HC) using a test battery consisting of a self-report measure of impulsivity (UPPS-P questionnaire), behavioral measures of impulsivity - impulsive action (Go/NoGo task, stop signal task) and impulsive choice (delay discounting task, Iowa gambling task), and standardized measures of attention (d2 test), working memory (digit span), and executive functioning (Tower of London). RESULTS: Patients with BPD and ADHD, as compared with HC, manifested increased self-reported impulsivity except sensation seeking and increased impulsive choice; patients with ADHD but not BPD showed increased impulsive action and deficits in cognitive functioning. Negative urgency was increased in BPD as compared to both HC and ADHD groups and correlated with BPD severity. CONCLUSIONS: Patients with BPD without ADHD comorbidity had increased self-reported impulsivity and impulsive choice, but intact impulsive action and cognitive functioning. Controlling for ADHD comorbidity in BPD samples is necessary. Negative urgency is the most diagnostically specific impulsivity dimension in BPD.
- MeSH
- dospělí MeSH
- exekutivní funkce MeSH
- hraniční porucha osobnosti psychologie MeSH
- hyperkinetická porucha psychologie MeSH
- impulzivní chování * MeSH
- kognice * MeSH
- krátkodobá paměť MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- rozhodování MeSH
- studie případů a kontrol MeSH
- zpráva o sobě MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika MeSH
x
x
- Klíčová slova
- Barrattova škála, škála UPPS-P,
- MeSH
- faktorová analýza statistická MeSH
- impulzivní chování klasifikace MeSH
- impulzivní poruchy * diagnóza klasifikace MeSH
- lidé MeSH
- průzkumy a dotazníky MeSH
- psychometrie * MeSH
- reprodukovatelnost výsledků MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- hodnotící studie MeSH
- práce podpořená grantem MeSH
- MeSH
- DNA genetika MeSH
- dospělí MeSH
- epidermolysis bullosa diagnóza genetika MeSH
- exony genetika MeSH
- fenotyp MeSH
- geny genetika MeSH
- heterozygot MeSH
- homozygot MeSH
- inteiny genetika MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- mutace genetika MeSH
- proteiny genetika MeSH
- sekvenční analýza DNA metody MeSH
- sestřih RNA MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- Publikační typ
- dopisy MeSH
- Geografické názvy
- Česká republika MeSH
BACKGROUND: Epidermolysis bullosa simplex (EBS) is an inherited skin disorder caused by mutations in the keratin 5 (KRT5) and keratin 14 (KRT14) genes, with fragility of basal keratinocytes leading to epidermal cytolysis and blistering. OBJECTIVES: In this study, we characterized mutations in KRT5 and KRT14 genes in patients with EBS and investigated their possible structure-function correlations. MATERIALS AND METHODS: Mutations were characterized using polymerase chain reaction (PCR) and DNA sequencing. Further, to explore possible correlations with function, the structural effects of the mutations in segment 2B of KRT5 and KRT14 and associated with EBS in our patients, as well as those reported previously, were modelled by molecular dynamics with the aid of the known crystal structure of the analogous segment of human vimentin. RESULTS: We have identified mutations in the KRT5 and KRT14 genes in 16 of 23 families affected by EBS in the Czech Republic. Eleven different sequence variants were found, of which four have not been reported previously. Novel mutations were found in two patients with the EBS-Dowling-Meara variant (EBS-DM) [KRT14-p.Ser128Pro and KRT14-p.Gln374_Leu387dup(14)] and in three patients with localized EBS (KRT14-p.Leu136Pro and KRT5-p.Val143Ala). Molecular dynamics studies show that the mutations p.Glu411del and p.Ile467Thr perturb the secondary alpha-helical structure of the mutated polypeptide chain, the deletion p.Glu411del in KRT14 has a strong but only local influence on the secondary structure of KRT14, and the structural impact of the mutation p.Ile467Thr in KRT5 is spread along the helix to the C-terminus. In all the other point mutations studied, the direct structural impact was significantly weaker and did not destroy the alpha-helical pattern of the secondary protein structure. The changes of 3-D structure of the KRT5/KRT14 dimer induced by the steric structural impact of the single point mutations, and the resulting altered inter- and intramolecular contacts, are spread along the protein helices to the protein C-terminus, but the overall alpha-helical character of the secondary structure is not destroyed and the atomic displacements induced by mutations cause only limited-scale changes of the quaternary structure of the dimer. CONCLUSIONS: The results of molecular modelling show relationships between patients' phenotypes and the structural effects of individual mutations.
- MeSH
- dítě MeSH
- dospělí MeSH
- epidermolysis bullosa simplex genetika patologie MeSH
- fenotyp MeSH
- fluorescenční mikroskopie MeSH
- genetická predispozice k nemoci MeSH
- intermediární filamenta ultrastruktura MeSH
- keratin-14 genetika MeSH
- keratin-5 genetika MeSH
- kůže ultrastruktura MeSH
- lidé MeSH
- molekulární modely MeSH
- mutace MeSH
- předškolní dítě MeSH
- Check Tag
- dítě MeSH
- dospělí MeSH
- lidé MeSH
- mužské pohlaví MeSH
- předškolní dítě MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Souhrn: V kazuistice je prezentován případ šestiletého chlapce, u kterého byla pozorována manifestace předčasné puberty a nadměrný vzrůst postavy. Jeho klinické příznaky odpovídaly prosté virilizující formě kongenitální adrenální hyperplázie. Pro potvrzení stanovené diagnózy byl proband poslán na molekulárně genetické vyšetření deficitu 21-hydroxylázy. Provedením základní DNA analýzy jsme probanda určili jako složeného heterozygota přenášejícího chimérní CYP21P/CYP21 gen na paternální alele a neznámou mutaci na maternální alele. Pomocí metody MLPA a následné sekvenační analýzy CYP21 genu jsme na maternální alele charakterizovali atypickou mutantní alelu s rozsáhlou genovou konverzí (5'– nepřekládaná oblast včetně promotoru a sekvence 1. exonu v CYP21 genu). Bylo popsáno, že tento typ alely významně snižuje aktivitu enzymu 21-hydroxylázy (na 4–10 %), což má za následek projev těžší formy onemocnění CAH, nejčastěji prosté virilizující.
In family report there is presented the case of the six-year-old boy, who was being observed for the manifestation of praecox pubarche and for excessive growth of the figure. His clinical symptomts corresponded to the simple virilizing form of congenital adrenal hyperplasia. To confirm the given diagnose the patient was examined by the molecular genetic analysis of deficit 21-hydroxylase. After the basic DNA analysis the genotype of the boy was determined as the compound heterozygote carrying the chimeric CYP21P/CYP21 gene on the paternal allele and an unknown mutation on the maternal allele. Using the MLPA method and sequencing method of the CYP21 gene we defined atypical mutant allele with a large gene conversion on maternal allele (5'– untranslated region including the promotor and sequence of the 1. exon in the CYP21 gene). It was described that this type of allele significantly decreases the activity of the enzyme 21-hydroxylase enzyme (to 4–10 %), which results in the manifestation of more difficult form of CAH disease, mostly SV form.
