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  1. Article ; Online: Rapid Characterization of the Functional and Pharmacological Consequences of Cantú Syndrome K

    Gao, Jian / McClenaghan, Conor / Matreyek, Kenneth A / Grange, Dorothy K / Nichols, Colin G

    The Journal of pharmacology and experimental therapeutics

    2023  Volume 386, Issue 3, Page(s) 298–309

    Abstract: Gain-of-function of ... ...

    Abstract Gain-of-function of K
    MeSH term(s) Humans ; Glyburide/pharmacology ; Glyburide/metabolism ; Pinacidil/pharmacology ; HEK293 Cells ; KATP Channels/genetics ; KATP Channels/metabolism ; Sulfonylurea Receptors/genetics ; Sulfonylurea Receptors/metabolism ; Mutation ; Cardiomegaly/genetics ; Adenosine Triphosphate/metabolism
    Chemical Substances Glyburide (SX6K58TVWC) ; Pinacidil (7B0ZZH8P2W) ; KATP Channels ; Sulfonylurea Receptors ; Adenosine Triphosphate (8L70Q75FXE)
    Language English
    Publishing date 2023-08-01
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 3106-9
    ISSN 1521-0103 ; 0022-3565
    ISSN (online) 1521-0103
    ISSN 0022-3565
    DOI 10.1124/jpet.123.001659
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Siblings with a novel MED12 variant and Odho syndrome with immune defects.

    Rubin, Zachary / Grange, Dorothy K / Cooper, Megan A

    Clinical genetics

    2020  Volume 98, Issue 3, Page(s) 308–310

    Language English
    Publishing date 2020-07-26
    Publishing country Denmark
    Document type Letter ; Research Support, Non-U.S. Gov't
    ZDB-ID 221209-2
    ISSN 1399-0004 ; 0009-9163
    ISSN (online) 1399-0004
    ISSN 0009-9163
    DOI 10.1111/cge.13806
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Biochemical characterization of patients with dihydrolipoamide dehydrogenase deficiency.

    Wongkittichote, Parith / Cuddapah, Sanmati R / Master, Stephen R / Grange, Dorothy K / Dietzen, Dennis / Roper, Stephen M / Ganetzky, Rebecca D

    JIMD reports

    2023  Volume 64, Issue 5, Page(s) 367–374

    Abstract: Dihydrolipoamide dehydrogenase (DLD; E3) oxidizes lipoic acid. Restoring the oxidized state allows lipoic acid to act as a necessary electron sink for the four mitochondrial keto-acid dehydrogenases: pyruvate dehydrogenase, alpha-ketoglutarate ... ...

    Abstract Dihydrolipoamide dehydrogenase (DLD; E3) oxidizes lipoic acid. Restoring the oxidized state allows lipoic acid to act as a necessary electron sink for the four mitochondrial keto-acid dehydrogenases: pyruvate dehydrogenase, alpha-ketoglutarate dehydrogenase, branched-chain α-keto-acid dehydrogenase, and 2-oxoadipate dehydrogenase. DLD deficiency (DLDD) is caused by biallelic pathogenic variants in
    Language English
    Publishing date 2023-08-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2672872-2
    ISSN 2192-8312 ; 2192-8304
    ISSN (online) 2192-8312
    ISSN 2192-8304
    DOI 10.1002/jmd2.12382
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Postmortem diagnosis of very long chain acyl-CoA dehydrogenase (VLCAD) deficiency in a neonate with sudden cardiac death.

    Singh, Prapti / Amaro, Deirdre / Obi, Olugbemisola / Kiran, Fnu / Hediger, Erin / Toler, Tomi L / Dickson, Patricia I / Grange, Dorothy K

    JIMD reports

    2023  Volume 64, Issue 4, Page(s) 261–264

    Abstract: Very long chain acyl-CoA dehydrogenase (VLCAD) deficiency is an autosomal recessive long chain fatty acid β-oxidation disorder with a variable clinical spectrum, ranging from an acute neonatal presentation with cardiac and hepatic failure to childhood or ...

    Abstract Very long chain acyl-CoA dehydrogenase (VLCAD) deficiency is an autosomal recessive long chain fatty acid β-oxidation disorder with a variable clinical spectrum, ranging from an acute neonatal presentation with cardiac and hepatic failure to childhood or adult onset of symptoms with hepatomegaly or rhabdomyolysis provoked by illness or exertion. Neonatal cardiac arrest or sudden unexpected death can be the presenting phenotype in some patients, emphasizing the importance of early clinical suspicion and intervention. We report a patient who had a cardiac arrest and died at one day of age. Following her death, the newborn screen reported biochemical evidence of VLCAD deficiency, which was confirmed with pathologic findings at autopsy and by molecular genetic testing.
    Language English
    Publishing date 2023-04-30
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2672872-2
    ISSN 2192-8312 ; 2192-8304
    ISSN (online) 2192-8312
    ISSN 2192-8304
    DOI 10.1002/jmd2.12365
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Novel LIAS variants in a patient with epilepsy and profound developmental disabilities.

    Wongkittichote, Parith / Chhay, Chanseyha / Zerafati-Jahromi, Gazelle / Weisenberg, Judith L / Mian, Ali / Jensen, Laran T / Grange, Dorothy K

    Molecular genetics and metabolism

    2023  Volume 138, Issue 3, Page(s) 107373

    Abstract: Multiple mitochondrial enzymes employ lipoic acid as a coenzyme. Pathogenic variants in LIAS, encoding lipoic acid synthase (LIAS), are associated with autosomal recessive LIAS-related disorder (OMIM# 614462). This disorder is characterized by infantile- ... ...

    Abstract Multiple mitochondrial enzymes employ lipoic acid as a coenzyme. Pathogenic variants in LIAS, encoding lipoic acid synthase (LIAS), are associated with autosomal recessive LIAS-related disorder (OMIM# 614462). This disorder is characterized by infantile-onset hypotonia, profound psychomotor delay, epileptic encephalopathy, nonketotic hyperglycinemia, and lactic acidosis. We present the case of a 20-year-old female who experienced developmental deficits at the age of 6 months and began to have seizures at 3 years of age. Exome sequencing revealed compound heterozygous novel variants in LIAS, designated c.277delC (p.Leu93Ter) and c.542A > T (p.Asp181Val). The p.Leu93Ter variant is predicted to cause loss of function due to the severe truncation of the encoded protein. To examine the p.Asp181Val variant, functional analysis was performed using Baker's yeast (Saccharomyces cerevisiae) lacking LIP5, the homologue of human LIAS. Wild-type LIAS promoted oxidative growth of the lip5∆ yeast strain. In contrast, lip5∆ yeast expressing p.Asp181Val exhibited poor growth, similar to known pathogenic variants, p.Asp215Glu and p.Met310Thr. Our work has expanded the phenotypic and genotypic spectrum of LIAS-related disorder and established the use of the yeast model as a system for functional study of novel missense variants in LIAS.
    MeSH term(s) Adult ; Child ; Female ; Humans ; Infant ; Young Adult ; Developmental Disabilities/genetics ; Epilepsy/genetics ; Muscle Hypotonia ; Saccharomyces cerevisiae ; Sulfurtransferases/genetics
    Chemical Substances lipoic acid synthase (EC 2.8.1.-) ; Sulfurtransferases (EC 2.8.1.-) ; LIAS protein, human (EC 2.8.1.8)
    Language English
    Publishing date 2023-01-07
    Publishing country United States
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1418518-0
    ISSN 1096-7206 ; 1096-7192
    ISSN (online) 1096-7206
    ISSN 1096-7192
    DOI 10.1016/j.ymgme.2023.107373
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: PIGO-CDG: A case study with a new genotype, expansion of the phenotype, literature review, and nosological considerations.

    Starosta, Rodrigo Tzovenos / Kerashvili, Nino / Pruitt, Cassandra / Schultz, Matthew J / Boyer, Suzanne W / Morava, Eva / Lasio, Maria Laura Duque / Grange, Dorothy K

    JIMD reports

    2023  Volume 64, Issue 6, Page(s) 424–433

    Abstract: The phosphatidylinositol glycan anchor biosynthesis class O protein (PIGO) enzyme is an important step in the biosynthesis of glycosylphosphatidylinositol (GPI), which is essential for the membrane anchoring of several proteins. Bi-allelic pathogenic ... ...

    Abstract The phosphatidylinositol glycan anchor biosynthesis class O protein (PIGO) enzyme is an important step in the biosynthesis of glycosylphosphatidylinositol (GPI), which is essential for the membrane anchoring of several proteins. Bi-allelic pathogenic variants in
    Language English
    Publishing date 2023-09-20
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2672872-2
    ISSN 2192-8312 ; 2192-8304
    ISSN (online) 2192-8312
    ISSN 2192-8304
    DOI 10.1002/jmd2.12396
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Continuous Renal Replacement Therapy for Two Neonates With Hyperammonemia.

    Markham, Christopher / Williams, Caroline / Miller, Cory / Grange, Dorothy K / Davis, T Keefe / Remy, Kenneth E

    Frontiers in pediatrics

    2021  Volume 9, Page(s) 732354

    Abstract: Objectives: ...

    Abstract Objectives:
    Language English
    Publishing date 2021-11-05
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2711999-3
    ISSN 2296-2360
    ISSN 2296-2360
    DOI 10.3389/fped.2021.732354
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A Unique High-Output Cardiac Hypertrophy Phenotype Arising From Low Systemic Vascular Resistance in Cantu Syndrome.

    Singh, Gautam K / McClenaghan, Conor / Aggarwal, Manish / Gu, Hongjie / Remedi, Maria S / Grange, Dorothy K / Nichols, Colin G

    Journal of the American Heart Association

    2022  Volume 11, Issue 24, Page(s) e027363

    Abstract: Background Cardiomegaly caused by left ventricular hypertrophy is a risk factor for development of congestive heart failure, classically associated with decreased systolic and/or diastolic ventricular function. Less attention has been given to the ... ...

    Abstract Background Cardiomegaly caused by left ventricular hypertrophy is a risk factor for development of congestive heart failure, classically associated with decreased systolic and/or diastolic ventricular function. Less attention has been given to the phenotype of left ventricular hypertrophy with enhanced ventricular function and increased cardiac output, which is potentially associated with high-output heart failure. Lack of recognition may pose diagnostic ambiguity and management complexities. Methods and Results We sought to systematically characterize high-output cardiac hypertrophy in subjects with Cantu syndrome (CS), caused by gain-of-function variants in
    MeSH term(s) Humans ; Male ; Adenosine Triphosphate ; Cardiomegaly/genetics ; Heart Failure/complications ; Hypertrophy, Left Ventricular/diagnostic imaging ; Hypertrophy, Left Ventricular/genetics ; Hypertrophy, Left Ventricular/complications ; KATP Channels ; Phenotype ; Vascular Resistance ; Female ; Child, Preschool ; Child ; Adolescent ; Young Adult ; Adult ; Osteochondrodysplasias/genetics ; Hypertrichosis/genetics
    Chemical Substances Adenosine Triphosphate (8L70Q75FXE) ; KATP Channels
    Language English
    Publishing date 2022-12-14
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2653953-6
    ISSN 2047-9980 ; 2047-9980
    ISSN (online) 2047-9980
    ISSN 2047-9980
    DOI 10.1161/JAHA.122.027363
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Protocol for the Phase 2 EDELIFE Trial Investigating the Efficacy and Safety of Intra-Amniotic ER004 Administration to Male Subjects with X-Linked Hypohidrotic Ectodermal Dysplasia.

    Schneider, Holm / Hadj-Rabia, Smail / Faschingbauer, Florian / Bodemer, Christine / Grange, Dorothy K / Norton, Mary E / Cavalli, Riccardo / Tadini, Gianluca / Stepan, Holger / Clarke, Angus / Guillén-Navarro, Encarna / Maier-Wohlfart, Sigrun / Bouroubi, Athmane / Porte, Florence

    Genes

    2023  Volume 14, Issue 1

    Abstract: X-linked hypohidrotic ectodermal dysplasia (XLHED) is a rare genetic disorder characte-rised by abnormal development of the skin and its appendages, such as hair and sweat glands, the teeth, and mucous glands of the airways, resulting in serious, ... ...

    Abstract X-linked hypohidrotic ectodermal dysplasia (XLHED) is a rare genetic disorder characte-rised by abnormal development of the skin and its appendages, such as hair and sweat glands, the teeth, and mucous glands of the airways, resulting in serious, sometimes life-threatening complications like hyperthermia or recurrent respiratory infections. It is caused by pathogenic variants of the ectodysplasin A gene (
    MeSH term(s) Female ; Pregnancy ; Male ; Humans ; Ectodermal Dysplasia 1, Anhidrotic/genetics ; Prospective Studies ; Ectodermal Dysplasia/genetics ; Ectodysplasins/genetics ; Skin ; Clinical Trials, Phase II as Topic
    Chemical Substances Ectodysplasins
    Language English
    Publishing date 2023-01-06
    Publishing country Switzerland
    Document type Clinical Trial Protocol ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2527218-4
    ISSN 2073-4425 ; 2073-4425
    ISSN (online) 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes14010153
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Electrophysiology of human iPSC-derived vascular smooth muscle cells and cell autonomous consequences of Cantu Syndrome mutations.

    Hanson, Alex / McClenaghan, Conor / Weng, Kuo-Chan / Colijn, Sarah / Stratman, Amber N / Halabi, Carmen M / Grange, Dorothy K / Silva, Jonathan R / Nichols, Colin G

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Objective: Cantu Syndrome (CS), a multisystem disease with a complex cardiovascular phenotype, is caused by GoF variants in the Kir6.1/SUR2 subunits of ATP-sensitive potassium (K : Approach and results: Whole-cell voltage-clamp of isolated aortic and ...

    Abstract Objective: Cantu Syndrome (CS), a multisystem disease with a complex cardiovascular phenotype, is caused by GoF variants in the Kir6.1/SUR2 subunits of ATP-sensitive potassium (K
    Approach and results: Whole-cell voltage-clamp of isolated aortic and mesenteric VSMCs isolated from wild type (WT) and Kir6.1[V65M] (CS) mice revealed no difference in voltage-gated K
    Conclusions: The results show that hiPSC-VSMCs reiterate expression of the same major ion currents as primary VSMCs, validating the use of these cells to study vascular disease. The results further indicate that both the hypomyotonic and hyperelastic components of CS vasculopathy are cell-autonomous phenomena driven by K
    Language English
    Publishing date 2023-07-01
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.06.29.547088
    Database MEDical Literature Analysis and Retrieval System OnLINE

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