BACKGROUND AND OBJECTIVES: KCNH5 encodes the voltage-gated potassium channel EAG2/Kv10.2. We aimed to delineate the neurodevelopmental and epilepsy phenotypic spectrum associated with de novo KCNH5 variants. METHODS: We screened 893 individuals with developmental and epileptic encephalopathies for KCNH5 variants using targeted or exome sequencing. Additional individuals with KCNH5 variants were identified through an international collaboration. Clinical history, EEG, and imaging data were analyzed; seizure types and epilepsy syndromes were classified. We included 3 previously published individuals including additional phenotypic details. RESULTS: We report a cohort of 17 patients, including 9 with a recurrent de novo missense variant p.Arg327His, 4 with a recurrent missense variant p.Arg333His, and 4 additional novel missense variants. All variants were located in or near the functionally critical voltage-sensing or pore domains, absent in the general population, and classified as pathogenic or likely pathogenic using the American College of Medical Genetics and Genomics criteria. All individuals presented with epilepsy with a median seizure onset at 6 months. They had a wide range of seizure types, including focal and generalized seizures. Cognitive outcomes ranged from normal intellect to profound impairment. Individuals with the recurrent p.Arg333His variant had a self-limited drug-responsive focal or generalized epilepsy and normal intellect, whereas the recurrent p.Arg327His variant was associated with infantile-onset DEE. Two individuals with variants in the pore domain were more severely affected, with a neonatal-onset movement disorder, early-infantile DEE, profound disability, and childhood death. DISCUSSION: We describe a cohort of 17 individuals with pathogenic or likely pathogenic missense variants in the voltage-sensing and pore domains of Kv10.2, including 14 previously unreported individuals. We present evidence for a putative emerging genotype-phenotype correlation with a spectrum of epilepsy and cognitive outcomes. Overall, we expand the role of EAG proteins in human disease and establish KCNH5 as implicated in a spectrum of neurodevelopmental disorders and epilepsy.
- MeSH
- dítě MeSH
- draslíkové kanály ether-a-go-go * genetika MeSH
- epilepsie generalizovaná * genetika MeSH
- epilepsie * genetika MeSH
- fenotyp MeSH
- lidé MeSH
- mutace MeSH
- novorozenec MeSH
- záchvaty genetika MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- novorozenec MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Research Support, N.I.H., Extramural MeSH
IMPORTANCE: Corticosteroidal anti-inflammatory drugs are widely prescribed but long-term use shows adverse effects that detract from patient quality of life. OBJECTIVE: To determine if vamorolone, a structurally unique dissociative steroidal anti-inflammatory drug, is able to retain efficacy while reducing safety concerns with use in Duchenne muscular dystrophy (DMD). DESIGN, SETTING, AND PARTICIPANTS: Randomized, double-blind, placebo- and prednisone-controlled 24-week clinical trial, conducted from June 29, 2018, to February 24, 2021, with 24 weeks of follow-up. This was a multicenter study (33 referral centers in 11 countries) and included boys 4 to younger than 7 years of age with genetically confirmed DMD not previously treated with corticosteroids. INTERVENTIONS: The study included 4 groups: placebo; prednisone, 0.75 mg/kg per day; vamorolone, 2 mg/kg per day; and vamorolone, 6 mg/kg per day. MAIN OUTCOMES AND MEASURES: Study outcomes monitored (1) efficacy, which included motor outcomes (primary: time to stand from supine velocity in the vamorolone, 6 mg/kg per day, group vs placebo; secondary: time to stand from supine velocity [vamorolone, 2 mg/kg per day], 6-minute walk distance, time to run/walk 10 m [vamorolone, 2 and 6 mg/kg per day]; exploratory: NorthStar Ambulatory Assessment, time to climb 4 stairs) and (2) safety, which included growth, bone biomarkers, and a corticotropin (ACTH)-challenge test. RESULTS: Among the 133 boys with DMD enrolled in the study (mean [SD] age, 5.4 [0.9] years), 121 were randomly assigned to treatment groups, and 114 completed the 24-week treatment period. The trial met the primary end point for change from baseline to week 24 time to stand velocity for vamorolone, 6 mg/kg per day (least-squares mean [SE] velocity, 0.05 [0.01] m/s vs placebo -0.01 [0.01] m/s; 95% CI, 0.02-0.10; P = .002) and the first 4 sequential secondary end points: time to stand velocity, vamorolone, 2 mg/kg per day, vs placebo; 6-minute walk test, vamorolone, 6 mg/kg per day, vs placebo; 6-minute walk test, vamorolone, 2 mg/kg per day, vs placebo; and time to run/walk 10 m velocity, vamorolone, 6 mg/kg per day, vs placebo. Height percentile declined in prednisone-treated (not vamorolone-treated) participants (change from baseline [SD]: prednisone, -1.88 [8.81] percentile vs vamorolone, 6 mg/kg per day, +3.86 [6.16] percentile; P = .02). Bone turnover markers declined with prednisone but not with vamorolone. Boys with DMD at baseline showed low ACTH-stimulated cortisol and high incidence of adrenal insufficiency. All 3 treatment groups led to increased adrenal insufficiency. CONCLUSIONS AND RELEVANCE: In this pivotal randomized clinical trial, vamorolone was shown to be effective and safe in the treatment of boys with DMD over a 24-week treatment period. Vamorolone may be a safer alternative than prednisone in this disease, in which long-term corticosteroid use is the standard of care. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03439670.
- MeSH
- adrenální insuficience * chemicky indukované farmakoterapie MeSH
- adrenokortikotropní hormon terapeutické užití MeSH
- antiflogistika škodlivé účinky MeSH
- biologické markery MeSH
- Duchennova muskulární dystrofie * farmakoterapie MeSH
- dvojitá slepá metoda MeSH
- hormony kůry nadledvin MeSH
- hydrokortison terapeutické užití MeSH
- kvalita života MeSH
- lidé MeSH
- prednison terapeutické užití MeSH
- předškolní dítě MeSH
- výsledek terapie MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- předškolní dítě MeSH
- Publikační typ
- časopisecké články MeSH
- multicentrická studie MeSH
- práce podpořená grantem MeSH
- randomizované kontrolované studie MeSH
- Research Support, N.I.H., Extramural MeSH
1. elektronické vydání 1 online zdroj (176 stran)
Kniha vás naučí přát si správným způsobem, tak, aby se vám splnily všechny vaše sny. Každý má v sobě přirozenou schopnost lidské mysli dosáhnout svých cílů pomocí tvůrčí představivosti, která vám pomůže dosáhnout skutečně přelomové a pozitivní změny ve vašem životě. Zkušený autor vám představí efektivní systém, jak si plnit sny, a také účinné metody, jak se vypořádat s těžkostmi, které na své cestě potkáváme.Pomocí tvůrčí představivosti můžete například:· zlepšit své zdraví· najít a vybudovat naplňující vztah· vylepšit svou kariéru a vydělat více peněz· rozšířit své možnosti a kreativitu· zbavit se depresí a špatných nálad
Vyd. 1. 149 s. : il. ; 21 cm
- Klíčová slova
- feng šuej,
- MeSH
- tradiční čínská medicína MeSH
- zahradničení metody MeSH
- Publikační typ
- příručky MeSH
- Konspekt
- Plánování krajiny. Parky. Zahrady
- NLK Obory
- zájmy a záliby
Vyd. 1. 198 s. ; 20 cm
- Klíčová slova
- reinkarnace, reinkarnační terapie,
- MeSH
- psychoterapie metody MeSH
- Publikační typ
- příručky MeSH
2. vyd. 185 s. : il. ; 18 cm
- MeSH
- komplementární terapie MeSH
- metafyzické vztahy mezi duší a tělem MeSH
- Publikační typ
- populární práce MeSH
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- terapie
1. vyd. 284 s. : il. ; 18 cm
- MeSH
- fyziognomie MeSH
- jin-jang MeSH
- metafyzické vztahy mezi duší a tělem MeSH
- obličej MeSH
- osobnost MeSH
- výraz obličeje MeSH
- Publikační typ
- populární práce MeSH
- příručky MeSH
- Konspekt
- Okultismus
- NLK Obory
- okultní vědy
- psychologie, klinická psychologie
Vyd. 1 131 s. : il. ; 20 cm
- Klíčová slova
- feng šuej,
- MeSH
- bydlení MeSH
- interpersonální vztahy MeSH
- manželství MeSH
- životní styl MeSH
- Publikační typ
- populární práce MeSH
- příručky MeSH
- Geografické názvy
- Čína MeSH
- Konspekt
- Orientální filozofie
- NLK Obory
- humanitní vědy a umění
- MeSH
- hemaglutininy fyziologie MeSH
- lidé MeSH
- virus chřipky A MeSH
- Check Tag
- lidé MeSH
- MeSH
- hemaglutininy fyziologie MeSH
- lidé MeSH
- virus chřipky A MeSH
- Check Tag
- lidé MeSH