Homozygous NOTCH3 p.R587C mutation in Chinese patients with CADASIL: a case report
Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and...
Ausführliche Beschreibung
Autor*in: |
He, Ruojie [verfasserIn] Li, Huan [verfasserIn] Sun, Yiming [verfasserIn] Chen, Menglong [verfasserIn] Wang, Liang [verfasserIn] Zhu, Yuling [verfasserIn] Zhang, Cheng [verfasserIn] |
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E-Artikel |
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Englisch |
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2020 |
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Übergeordnetes Werk: |
Enthalten in: BMC neurology - London : BioMed Central, 2001, 20(2020), 1 vom: 02. März |
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Übergeordnetes Werk: |
volume:20 ; year:2020 ; number:1 ; day:02 ; month:03 |
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DOI / URN: |
10.1186/s12883-020-01660-0 |
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Katalog-ID: |
SPR038971984 |
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520 | |a Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. | ||
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10.1186/s12883-020-01660-0 doi (DE-627)SPR038971984 (SPR)s12883-020-01660-0-e DE-627 ger DE-627 rakwb eng 610 ASE 44.00 bkl He, Ruojie verfasserin aut Homozygous NOTCH3 p.R587C mutation in Chinese patients with CADASIL: a case report 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. CADASIL (dpeaa)DE-He213 mutation (dpeaa)DE-He213 Homozygous (dpeaa)DE-He213 Phenotypic variation (dpeaa)DE-He213 Li, Huan verfasserin aut Sun, Yiming verfasserin aut Chen, Menglong verfasserin aut Wang, Liang verfasserin aut Zhu, Yuling verfasserin aut Zhang, Cheng verfasserin aut Enthalten in BMC neurology London : BioMed Central, 2001 20(2020), 1 vom: 02. März (DE-627)326643664 (DE-600)2041347-6 1471-2377 nnns volume:20 year:2020 number:1 day:02 month:03 https://dx.doi.org/10.1186/s12883-020-01660-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.00 ASE AR 20 2020 1 02 03 |
spelling |
10.1186/s12883-020-01660-0 doi (DE-627)SPR038971984 (SPR)s12883-020-01660-0-e DE-627 ger DE-627 rakwb eng 610 ASE 44.00 bkl He, Ruojie verfasserin aut Homozygous NOTCH3 p.R587C mutation in Chinese patients with CADASIL: a case report 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. CADASIL (dpeaa)DE-He213 mutation (dpeaa)DE-He213 Homozygous (dpeaa)DE-He213 Phenotypic variation (dpeaa)DE-He213 Li, Huan verfasserin aut Sun, Yiming verfasserin aut Chen, Menglong verfasserin aut Wang, Liang verfasserin aut Zhu, Yuling verfasserin aut Zhang, Cheng verfasserin aut Enthalten in BMC neurology London : BioMed Central, 2001 20(2020), 1 vom: 02. März (DE-627)326643664 (DE-600)2041347-6 1471-2377 nnns volume:20 year:2020 number:1 day:02 month:03 https://dx.doi.org/10.1186/s12883-020-01660-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.00 ASE AR 20 2020 1 02 03 |
allfields_unstemmed |
10.1186/s12883-020-01660-0 doi (DE-627)SPR038971984 (SPR)s12883-020-01660-0-e DE-627 ger DE-627 rakwb eng 610 ASE 44.00 bkl He, Ruojie verfasserin aut Homozygous NOTCH3 p.R587C mutation in Chinese patients with CADASIL: a case report 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. CADASIL (dpeaa)DE-He213 mutation (dpeaa)DE-He213 Homozygous (dpeaa)DE-He213 Phenotypic variation (dpeaa)DE-He213 Li, Huan verfasserin aut Sun, Yiming verfasserin aut Chen, Menglong verfasserin aut Wang, Liang verfasserin aut Zhu, Yuling verfasserin aut Zhang, Cheng verfasserin aut Enthalten in BMC neurology London : BioMed Central, 2001 20(2020), 1 vom: 02. März (DE-627)326643664 (DE-600)2041347-6 1471-2377 nnns volume:20 year:2020 number:1 day:02 month:03 https://dx.doi.org/10.1186/s12883-020-01660-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.00 ASE AR 20 2020 1 02 03 |
allfieldsGer |
10.1186/s12883-020-01660-0 doi (DE-627)SPR038971984 (SPR)s12883-020-01660-0-e DE-627 ger DE-627 rakwb eng 610 ASE 44.00 bkl He, Ruojie verfasserin aut Homozygous NOTCH3 p.R587C mutation in Chinese patients with CADASIL: a case report 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. CADASIL (dpeaa)DE-He213 mutation (dpeaa)DE-He213 Homozygous (dpeaa)DE-He213 Phenotypic variation (dpeaa)DE-He213 Li, Huan verfasserin aut Sun, Yiming verfasserin aut Chen, Menglong verfasserin aut Wang, Liang verfasserin aut Zhu, Yuling verfasserin aut Zhang, Cheng verfasserin aut Enthalten in BMC neurology London : BioMed Central, 2001 20(2020), 1 vom: 02. März (DE-627)326643664 (DE-600)2041347-6 1471-2377 nnns volume:20 year:2020 number:1 day:02 month:03 https://dx.doi.org/10.1186/s12883-020-01660-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.00 ASE AR 20 2020 1 02 03 |
allfieldsSound |
10.1186/s12883-020-01660-0 doi (DE-627)SPR038971984 (SPR)s12883-020-01660-0-e DE-627 ger DE-627 rakwb eng 610 ASE 44.00 bkl He, Ruojie verfasserin aut Homozygous NOTCH3 p.R587C mutation in Chinese patients with CADASIL: a case report 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. CADASIL (dpeaa)DE-He213 mutation (dpeaa)DE-He213 Homozygous (dpeaa)DE-He213 Phenotypic variation (dpeaa)DE-He213 Li, Huan verfasserin aut Sun, Yiming verfasserin aut Chen, Menglong verfasserin aut Wang, Liang verfasserin aut Zhu, Yuling verfasserin aut Zhang, Cheng verfasserin aut Enthalten in BMC neurology London : BioMed Central, 2001 20(2020), 1 vom: 02. März (DE-627)326643664 (DE-600)2041347-6 1471-2377 nnns volume:20 year:2020 number:1 day:02 month:03 https://dx.doi.org/10.1186/s12883-020-01660-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.00 ASE AR 20 2020 1 02 03 |
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homozygous notch3 p.r587c mutation in chinese patients with cadasil: a case report |
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Homozygous NOTCH3 p.R587C mutation in Chinese patients with CADASIL: a case report |
abstract |
Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. |
abstractGer |
Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. |
abstract_unstemmed |
Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an inherited small vessel disease caused by mutations in NOTCH3 gene with remarkable phenotypic heterogeneity. Cases of CADASIL associated with homozygous NOTCH3 mutations are rare and subsequently understudied. In this study, we investigate the genetic and phenotypic features within patients of CADASIL with homozygous NOTCH3 mutations. Case presentation We recruited two affected individuals with CADASIL from a mainland Chinese family. The proband (Patient 1), a 60-year-old male, presented with slow progressive gait instability, severe cognitive impairment, and emotional disorder for more than 2 years with a history of ischemic stroke and hypertension. His younger brother (Patient 2) presented with apparent gait difficulties, dysarthria as well as cognitive decline at 59 years old. Brain magnetic resonance imaging (MRI) showed diffused white matter lesions involving bilateral periventricular white matter, semioval center region, and anterior temporal lobes. Molecular genetic testing identified a homozygous variant, c.1759C > T (p.R587C), in NOTCH3 gene in both patients. Pathological analysis revealed granular osmiophilic material (GOM) deposits in small arterial walls of skin from the proband. The diagnosis of CADASIL was confirmed. Conclusions Our cases of CADASIL with homozygous mutation c.1759C > T (p.R587C) in NOTCH3 share similar manifestation to the patients with heterozygous same mutation reported previously. Other than genetic factors, vascular risk factors or environmental factors might contribute to the phenotypic variation of CADASIL. |
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Homozygous NOTCH3 p.R587C mutation in Chinese patients with CADASIL: a case report |
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