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Gene Information

Gene symbol: BSCL2

Gene name: Berardinelli-Seip congenital lipodystrophy 2 (seipin)

HGNC ID: 15832

Related Genes

# Gene Symbol Number of hits
1 ADIPOQ 1 hits
2 AGPAT1 1 hits
3 AGPAT2 1 hits
4 BMP4 1 hits
5 CAV1 1 hits
6 DFFA 1 hits
7 GNAS 1 hits
8 GNAT1 1 hits
9 GNG3 1 hits
10 GPAM 1 hits
11 GZMB 1 hits
12 GZMH 1 hits
13 HSPB8 1 hits
14 INS 1 hits
15 LEP 1 hits
16 LMNA 1 hits
17 PLIN 1 hits
18 PPARG 1 hits
19 ZMPSTE24 1 hits

Related Sentences

# PMID Sentence
1 11479539 Congenital generalized lipodystrophy, or Berardinelli-Seip syndrome (BSCL), is a rare autosomal recessive disease characterized by a near-absence of adipose tissue from birth or early infancy and severe insulin resistance.
2 11479539 Sequence analysis of genes located in the 11q13 interval disclosed mutations in a gene homologous to the murine guanine nucleotide-binding protein (G protein), gamma3-linked gene (Gng3lg) in all BSCL2-linked families.
3 11833462 Lamin A/C is indeed an ubiquitous nuclear protein, which is also mutated in a genetic squelettic and/or cardiac myopathy, and seipin is a protein of unknown function mainly expressed in brain.
4 12362029 In all subjects, hepatic dysfunction, hyperlipidaemia, diabetes mellitus, and hypertrophic cardiomyopathy were significant contributors to morbidity with no clear differences in their prevalence between subjects with BSCL1 or BSCL2 and those with evidence against cosegregation with either chromosome 9 or 11 (designated BSCLX).
5 12362029 BSCL2 appears to be a more severe disorder than BSCL1 with a higher incidence of premature death and a lower prevalence of partial and/or delayed onset of lipodystrophy.
6 12362029 Notably, subjects with BSCL2 had a significantly higher prevalence of intellectual impairment than those with BSCL1 or BSCLX (p<0.0001, OR 17.0, CI 3.6 to 79.0).
7 12362029 The higher prevalence of intellectual impairment and the increased risk of premature death in BSCL2 compared to BSCL1 emphasise the importance of molecular diagnosis of this syndrome and have clear implications for genetic counselling.
8 12362029 In all subjects, hepatic dysfunction, hyperlipidaemia, diabetes mellitus, and hypertrophic cardiomyopathy were significant contributors to morbidity with no clear differences in their prevalence between subjects with BSCL1 or BSCL2 and those with evidence against cosegregation with either chromosome 9 or 11 (designated BSCLX).
9 12362029 BSCL2 appears to be a more severe disorder than BSCL1 with a higher incidence of premature death and a lower prevalence of partial and/or delayed onset of lipodystrophy.
10 12362029 Notably, subjects with BSCL2 had a significantly higher prevalence of intellectual impairment than those with BSCL1 or BSCLX (p<0.0001, OR 17.0, CI 3.6 to 79.0).
11 12362029 The higher prevalence of intellectual impairment and the increased risk of premature death in BSCL2 compared to BSCL1 emphasise the importance of molecular diagnosis of this syndrome and have clear implications for genetic counselling.
12 12362029 In all subjects, hepatic dysfunction, hyperlipidaemia, diabetes mellitus, and hypertrophic cardiomyopathy were significant contributors to morbidity with no clear differences in their prevalence between subjects with BSCL1 or BSCL2 and those with evidence against cosegregation with either chromosome 9 or 11 (designated BSCLX).
13 12362029 BSCL2 appears to be a more severe disorder than BSCL1 with a higher incidence of premature death and a lower prevalence of partial and/or delayed onset of lipodystrophy.
14 12362029 Notably, subjects with BSCL2 had a significantly higher prevalence of intellectual impairment than those with BSCL1 or BSCLX (p<0.0001, OR 17.0, CI 3.6 to 79.0).
15 12362029 The higher prevalence of intellectual impairment and the increased risk of premature death in BSCL2 compared to BSCL1 emphasise the importance of molecular diagnosis of this syndrome and have clear implications for genetic counselling.
16 12362029 In all subjects, hepatic dysfunction, hyperlipidaemia, diabetes mellitus, and hypertrophic cardiomyopathy were significant contributors to morbidity with no clear differences in their prevalence between subjects with BSCL1 or BSCL2 and those with evidence against cosegregation with either chromosome 9 or 11 (designated BSCLX).
17 12362029 BSCL2 appears to be a more severe disorder than BSCL1 with a higher incidence of premature death and a lower prevalence of partial and/or delayed onset of lipodystrophy.
18 12362029 Notably, subjects with BSCL2 had a significantly higher prevalence of intellectual impairment than those with BSCL1 or BSCLX (p<0.0001, OR 17.0, CI 3.6 to 79.0).
19 12362029 The higher prevalence of intellectual impairment and the increased risk of premature death in BSCL2 compared to BSCL1 emphasise the importance of molecular diagnosis of this syndrome and have clear implications for genetic counselling.
20 12584444 Mutations in the gene encoding seipin cause Berardinelli-Seip congenital lipodystrophy 2, with symptoms including near-absence of adipose tissue and altered glucose tolerance.
21 12765973 Berardinelli-Seip congenital lipodystrophy (BSCL) is a heterogeneous genetic disease characterized by near absence of adipose tissue and severe insulin resistance.
22 12765973 In this study, we have performed mutation screening in AGPAT2 and the related AGPAT1 in patients with BSCL or other forms of lipodystrophy who have no detectable mutation in the seipin gene.
23 12765973 In conclusion, mutations in the seipin gene and AGPAT2 are confined to the BSCL phenotype.
24 12765973 Because we found mutations in 92 of the 94 BSCL patients studied, the seipin gene and AGPAT2 are the two major genes involved in the etiology of BSCL.
25 12765973 Berardinelli-Seip congenital lipodystrophy (BSCL) is a heterogeneous genetic disease characterized by near absence of adipose tissue and severe insulin resistance.
26 12765973 In this study, we have performed mutation screening in AGPAT2 and the related AGPAT1 in patients with BSCL or other forms of lipodystrophy who have no detectable mutation in the seipin gene.
27 12765973 In conclusion, mutations in the seipin gene and AGPAT2 are confined to the BSCL phenotype.
28 12765973 Because we found mutations in 92 of the 94 BSCL patients studied, the seipin gene and AGPAT2 are the two major genes involved in the etiology of BSCL.
29 12765973 Berardinelli-Seip congenital lipodystrophy (BSCL) is a heterogeneous genetic disease characterized by near absence of adipose tissue and severe insulin resistance.
30 12765973 In this study, we have performed mutation screening in AGPAT2 and the related AGPAT1 in patients with BSCL or other forms of lipodystrophy who have no detectable mutation in the seipin gene.
31 12765973 In conclusion, mutations in the seipin gene and AGPAT2 are confined to the BSCL phenotype.
32 12765973 Because we found mutations in 92 of the 94 BSCL patients studied, the seipin gene and AGPAT2 are the two major genes involved in the etiology of BSCL.
33 12826327 Mutations in the BSCL2 (which encodes seipin, a protein of unknown function) and AGPAT2 (which encodes 1-acylglycerol-3-phosphate O-acyltransferase 2) genes have been reported in patients with CGL.
34 14516935 Monogenic forms of insulin resistance, such as familial partial lipodystrophy, which results from mutations in either LMNA (encoding lamin A/C) or PPARG (encoding peroxisome proliferator-activated receptor gamma), and congenital generalized lipodystrophy, which results from mutations in either AGPAT2 (encoding 1-acylglycerol-3-phosphate O-acyltransferase) or BSCL2 (encoding seipin), can display features seen in the common metabolic syndrome.
35 14557463 Recently, mutations in 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) and Berardinelli-Seip congenital lipodystrophy 2 (BSCL2) genes were reported in pedigrees linked to chromosomes 9q34 and 11q13, respectively.
36 14557463 Therefore, we genotyped 45 pedigrees with CGL for AGPAT2 and BSCL2 loci and compared the phenotypes in the various subtypes.
37 14557463 Twenty-six pedigrees harbored mutations, including seven novel variants, in the AGPAT2 gene, and 11 pedigrees harbored mutations in the BSCL2 gene, including five novel variants.
38 14557463 Of these, three informative pedigrees showed no linkage to markers spanning the AGPAT2 and BSCL2 loci, and in six of the affected subjects, the transcripts of AGPAT2 and BSCL2 were normal.
39 14557463 However, patients with BSCL2 mutations had lower serum leptin levels, an earlier onset of diabetes, and higher prevalence of mild mental retardation compared with other subtypes.
40 14557463 We conclude that besides AGPAT2 and BSCL2, there may be additional loci for CGL.
41 14557463 Recently, mutations in 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) and Berardinelli-Seip congenital lipodystrophy 2 (BSCL2) genes were reported in pedigrees linked to chromosomes 9q34 and 11q13, respectively.
42 14557463 Therefore, we genotyped 45 pedigrees with CGL for AGPAT2 and BSCL2 loci and compared the phenotypes in the various subtypes.
43 14557463 Twenty-six pedigrees harbored mutations, including seven novel variants, in the AGPAT2 gene, and 11 pedigrees harbored mutations in the BSCL2 gene, including five novel variants.
44 14557463 Of these, three informative pedigrees showed no linkage to markers spanning the AGPAT2 and BSCL2 loci, and in six of the affected subjects, the transcripts of AGPAT2 and BSCL2 were normal.
45 14557463 However, patients with BSCL2 mutations had lower serum leptin levels, an earlier onset of diabetes, and higher prevalence of mild mental retardation compared with other subtypes.
46 14557463 We conclude that besides AGPAT2 and BSCL2, there may be additional loci for CGL.
47 14557463 Recently, mutations in 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) and Berardinelli-Seip congenital lipodystrophy 2 (BSCL2) genes were reported in pedigrees linked to chromosomes 9q34 and 11q13, respectively.
48 14557463 Therefore, we genotyped 45 pedigrees with CGL for AGPAT2 and BSCL2 loci and compared the phenotypes in the various subtypes.
49 14557463 Twenty-six pedigrees harbored mutations, including seven novel variants, in the AGPAT2 gene, and 11 pedigrees harbored mutations in the BSCL2 gene, including five novel variants.
50 14557463 Of these, three informative pedigrees showed no linkage to markers spanning the AGPAT2 and BSCL2 loci, and in six of the affected subjects, the transcripts of AGPAT2 and BSCL2 were normal.
51 14557463 However, patients with BSCL2 mutations had lower serum leptin levels, an earlier onset of diabetes, and higher prevalence of mild mental retardation compared with other subtypes.
52 14557463 We conclude that besides AGPAT2 and BSCL2, there may be additional loci for CGL.
53 14557463 Recently, mutations in 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) and Berardinelli-Seip congenital lipodystrophy 2 (BSCL2) genes were reported in pedigrees linked to chromosomes 9q34 and 11q13, respectively.
54 14557463 Therefore, we genotyped 45 pedigrees with CGL for AGPAT2 and BSCL2 loci and compared the phenotypes in the various subtypes.
55 14557463 Twenty-six pedigrees harbored mutations, including seven novel variants, in the AGPAT2 gene, and 11 pedigrees harbored mutations in the BSCL2 gene, including five novel variants.
56 14557463 Of these, three informative pedigrees showed no linkage to markers spanning the AGPAT2 and BSCL2 loci, and in six of the affected subjects, the transcripts of AGPAT2 and BSCL2 were normal.
57 14557463 However, patients with BSCL2 mutations had lower serum leptin levels, an earlier onset of diabetes, and higher prevalence of mild mental retardation compared with other subtypes.
58 14557463 We conclude that besides AGPAT2 and BSCL2, there may be additional loci for CGL.
59 14557463 Recently, mutations in 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) and Berardinelli-Seip congenital lipodystrophy 2 (BSCL2) genes were reported in pedigrees linked to chromosomes 9q34 and 11q13, respectively.
60 14557463 Therefore, we genotyped 45 pedigrees with CGL for AGPAT2 and BSCL2 loci and compared the phenotypes in the various subtypes.
61 14557463 Twenty-six pedigrees harbored mutations, including seven novel variants, in the AGPAT2 gene, and 11 pedigrees harbored mutations in the BSCL2 gene, including five novel variants.
62 14557463 Of these, three informative pedigrees showed no linkage to markers spanning the AGPAT2 and BSCL2 loci, and in six of the affected subjects, the transcripts of AGPAT2 and BSCL2 were normal.
63 14557463 However, patients with BSCL2 mutations had lower serum leptin levels, an earlier onset of diabetes, and higher prevalence of mild mental retardation compared with other subtypes.
64 14557463 We conclude that besides AGPAT2 and BSCL2, there may be additional loci for CGL.
65 14557463 Recently, mutations in 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) and Berardinelli-Seip congenital lipodystrophy 2 (BSCL2) genes were reported in pedigrees linked to chromosomes 9q34 and 11q13, respectively.
66 14557463 Therefore, we genotyped 45 pedigrees with CGL for AGPAT2 and BSCL2 loci and compared the phenotypes in the various subtypes.
67 14557463 Twenty-six pedigrees harbored mutations, including seven novel variants, in the AGPAT2 gene, and 11 pedigrees harbored mutations in the BSCL2 gene, including five novel variants.
68 14557463 Of these, three informative pedigrees showed no linkage to markers spanning the AGPAT2 and BSCL2 loci, and in six of the affected subjects, the transcripts of AGPAT2 and BSCL2 were normal.
69 14557463 However, patients with BSCL2 mutations had lower serum leptin levels, an earlier onset of diabetes, and higher prevalence of mild mental retardation compared with other subtypes.
70 14557463 We conclude that besides AGPAT2 and BSCL2, there may be additional loci for CGL.
71 14602785 Phenotypic heterogeneity in body fat distribution in patients with congenital generalized lipodystrophy caused by mutations in the AGPAT2 or seipin genes.
72 14602785 Recently, we reported mutations in the 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) gene in CGL pedigrees linked to chromosome 9q34 (CGL1 subtype), and mutations in the Seipin gene were reported in pedigrees linked to chromosome 11q13 (CGL2 subtype).
73 14602785 Paucity of mechanical adipose tissue in the palms, soles, orbits, scalp, and periarticular regions was noted in CGL2, whereas it was well preserved in CGL1 patients.
74 14602785 We conclude that CGL patients with Seipin mutations have a more severe lack of body fat, which affects both metabolically active and mechanical adipose tissue, compared with patients with mutations in the AGPAT2 gene.
75 14602785 Phenotypic heterogeneity in body fat distribution in patients with congenital generalized lipodystrophy caused by mutations in the AGPAT2 or seipin genes.
76 14602785 Recently, we reported mutations in the 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) gene in CGL pedigrees linked to chromosome 9q34 (CGL1 subtype), and mutations in the Seipin gene were reported in pedigrees linked to chromosome 11q13 (CGL2 subtype).
77 14602785 Paucity of mechanical adipose tissue in the palms, soles, orbits, scalp, and periarticular regions was noted in CGL2, whereas it was well preserved in CGL1 patients.
78 14602785 We conclude that CGL patients with Seipin mutations have a more severe lack of body fat, which affects both metabolically active and mechanical adipose tissue, compared with patients with mutations in the AGPAT2 gene.
79 14602785 Phenotypic heterogeneity in body fat distribution in patients with congenital generalized lipodystrophy caused by mutations in the AGPAT2 or seipin genes.
80 14602785 Recently, we reported mutations in the 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2) gene in CGL pedigrees linked to chromosome 9q34 (CGL1 subtype), and mutations in the Seipin gene were reported in pedigrees linked to chromosome 11q13 (CGL2 subtype).
81 14602785 Paucity of mechanical adipose tissue in the palms, soles, orbits, scalp, and periarticular regions was noted in CGL2, whereas it was well preserved in CGL1 patients.
82 14602785 We conclude that CGL patients with Seipin mutations have a more severe lack of body fat, which affects both metabolically active and mechanical adipose tissue, compared with patients with mutations in the AGPAT2 gene.
83 14715872 Mutations in the seipin and AGPAT2 genes clustering in consanguineous families with Berardinelli-Seip congenital lipodystrophy from two separate geographical regions of Brazil.
84 14715872 In this study, we investigated the presence of mutations in the Seipin and 1-acylglycerol phosphate acyltransferase 2 (AGPAT2) genes in 32 affected subjects with BSCL from 17 consanguineous pedigrees living in two separate geographical regions, the northeastern and southeastern regions, of Brazil.
85 14715872 All, except one, of the 22 BSCL subjects from 15 families living in the northeastern region were found to have a homozygous 669insA mutation in the Seipin gene.
86 14715872 Our finding of a single mutation in the Seipin and AGPAT2 genes in the pedigrees from the northeastern and southeastern regions, respectively, will be useful in genetic counseling of subjects from these large pedigrees from Brazil.
87 14715872 Mutations in the seipin and AGPAT2 genes clustering in consanguineous families with Berardinelli-Seip congenital lipodystrophy from two separate geographical regions of Brazil.
88 14715872 In this study, we investigated the presence of mutations in the Seipin and 1-acylglycerol phosphate acyltransferase 2 (AGPAT2) genes in 32 affected subjects with BSCL from 17 consanguineous pedigrees living in two separate geographical regions, the northeastern and southeastern regions, of Brazil.
89 14715872 All, except one, of the 22 BSCL subjects from 15 families living in the northeastern region were found to have a homozygous 669insA mutation in the Seipin gene.
90 14715872 Our finding of a single mutation in the Seipin and AGPAT2 genes in the pedigrees from the northeastern and southeastern regions, respectively, will be useful in genetic counseling of subjects from these large pedigrees from Brazil.
91 14715872 Mutations in the seipin and AGPAT2 genes clustering in consanguineous families with Berardinelli-Seip congenital lipodystrophy from two separate geographical regions of Brazil.
92 14715872 In this study, we investigated the presence of mutations in the Seipin and 1-acylglycerol phosphate acyltransferase 2 (AGPAT2) genes in 32 affected subjects with BSCL from 17 consanguineous pedigrees living in two separate geographical regions, the northeastern and southeastern regions, of Brazil.
93 14715872 All, except one, of the 22 BSCL subjects from 15 families living in the northeastern region were found to have a homozygous 669insA mutation in the Seipin gene.
94 14715872 Our finding of a single mutation in the Seipin and AGPAT2 genes in the pedigrees from the northeastern and southeastern regions, respectively, will be useful in genetic counseling of subjects from these large pedigrees from Brazil.
95 14715872 Mutations in the seipin and AGPAT2 genes clustering in consanguineous families with Berardinelli-Seip congenital lipodystrophy from two separate geographical regions of Brazil.
96 14715872 In this study, we investigated the presence of mutations in the Seipin and 1-acylglycerol phosphate acyltransferase 2 (AGPAT2) genes in 32 affected subjects with BSCL from 17 consanguineous pedigrees living in two separate geographical regions, the northeastern and southeastern regions, of Brazil.
97 14715872 All, except one, of the 22 BSCL subjects from 15 families living in the northeastern region were found to have a homozygous 669insA mutation in the Seipin gene.
98 14715872 Our finding of a single mutation in the Seipin and AGPAT2 genes in the pedigrees from the northeastern and southeastern regions, respectively, will be useful in genetic counseling of subjects from these large pedigrees from Brazil.
99 15181077 Mutations in Gng3lg and AGPAT2 in Berardinelli-Seip congenital lipodystrophy and Brunzell syndrome: phenotype variability suggests important modifier effects.
100 15181077 Congenital generalized lipodystrophy (CGL) is a rare autosomal recessive disorder caused by mutations in AGPAT2 and Gng3lg.
101 15181077 We screened for mutations in AGPAT2 and Gng3lg in 26 families with CGL and one family with Brunzell syndrome.
102 15181077 We found mutations in either AGPAT2 or Gng3lg in all but four probands, including three novel mutations in AGPAT2, A712T (Lys215X), IVS3-1G-->C, and C636A (Phe189X).
103 15181077 In our subjects, there did not appear to be any distinguishing clinical characteristics between CGL subjects with AGPAT2 or Gng3lg mutations with the exception of mental retardation in carriers of Gng3lg.
104 15181077 In summary, mutations in AGPAT2 and Gng3lg are approximately equally represented in CGL; despite harboring the same Gng3lg mutation, subjects may have widely divergent clinical manifestations, suggesting modifying influences of other genes and/or environment; and Brunzell syndrome may be caused by a mutation in AGPAT2.
105 15181077 Mutations in Gng3lg and AGPAT2 in Berardinelli-Seip congenital lipodystrophy and Brunzell syndrome: phenotype variability suggests important modifier effects.
106 15181077 Congenital generalized lipodystrophy (CGL) is a rare autosomal recessive disorder caused by mutations in AGPAT2 and Gng3lg.
107 15181077 We screened for mutations in AGPAT2 and Gng3lg in 26 families with CGL and one family with Brunzell syndrome.
108 15181077 We found mutations in either AGPAT2 or Gng3lg in all but four probands, including three novel mutations in AGPAT2, A712T (Lys215X), IVS3-1G-->C, and C636A (Phe189X).
109 15181077 In our subjects, there did not appear to be any distinguishing clinical characteristics between CGL subjects with AGPAT2 or Gng3lg mutations with the exception of mental retardation in carriers of Gng3lg.
110 15181077 In summary, mutations in AGPAT2 and Gng3lg are approximately equally represented in CGL; despite harboring the same Gng3lg mutation, subjects may have widely divergent clinical manifestations, suggesting modifying influences of other genes and/or environment; and Brunzell syndrome may be caused by a mutation in AGPAT2.
111 15181077 Mutations in Gng3lg and AGPAT2 in Berardinelli-Seip congenital lipodystrophy and Brunzell syndrome: phenotype variability suggests important modifier effects.
112 15181077 Congenital generalized lipodystrophy (CGL) is a rare autosomal recessive disorder caused by mutations in AGPAT2 and Gng3lg.
113 15181077 We screened for mutations in AGPAT2 and Gng3lg in 26 families with CGL and one family with Brunzell syndrome.
114 15181077 We found mutations in either AGPAT2 or Gng3lg in all but four probands, including three novel mutations in AGPAT2, A712T (Lys215X), IVS3-1G-->C, and C636A (Phe189X).
115 15181077 In our subjects, there did not appear to be any distinguishing clinical characteristics between CGL subjects with AGPAT2 or Gng3lg mutations with the exception of mental retardation in carriers of Gng3lg.
116 15181077 In summary, mutations in AGPAT2 and Gng3lg are approximately equally represented in CGL; despite harboring the same Gng3lg mutation, subjects may have widely divergent clinical manifestations, suggesting modifying influences of other genes and/or environment; and Brunzell syndrome may be caused by a mutation in AGPAT2.
117 15181077 Mutations in Gng3lg and AGPAT2 in Berardinelli-Seip congenital lipodystrophy and Brunzell syndrome: phenotype variability suggests important modifier effects.
118 15181077 Congenital generalized lipodystrophy (CGL) is a rare autosomal recessive disorder caused by mutations in AGPAT2 and Gng3lg.
119 15181077 We screened for mutations in AGPAT2 and Gng3lg in 26 families with CGL and one family with Brunzell syndrome.
120 15181077 We found mutations in either AGPAT2 or Gng3lg in all but four probands, including three novel mutations in AGPAT2, A712T (Lys215X), IVS3-1G-->C, and C636A (Phe189X).
121 15181077 In our subjects, there did not appear to be any distinguishing clinical characteristics between CGL subjects with AGPAT2 or Gng3lg mutations with the exception of mental retardation in carriers of Gng3lg.
122 15181077 In summary, mutations in AGPAT2 and Gng3lg are approximately equally represented in CGL; despite harboring the same Gng3lg mutation, subjects may have widely divergent clinical manifestations, suggesting modifying influences of other genes and/or environment; and Brunzell syndrome may be caused by a mutation in AGPAT2.
123 15181077 Mutations in Gng3lg and AGPAT2 in Berardinelli-Seip congenital lipodystrophy and Brunzell syndrome: phenotype variability suggests important modifier effects.
124 15181077 Congenital generalized lipodystrophy (CGL) is a rare autosomal recessive disorder caused by mutations in AGPAT2 and Gng3lg.
125 15181077 We screened for mutations in AGPAT2 and Gng3lg in 26 families with CGL and one family with Brunzell syndrome.
126 15181077 We found mutations in either AGPAT2 or Gng3lg in all but four probands, including three novel mutations in AGPAT2, A712T (Lys215X), IVS3-1G-->C, and C636A (Phe189X).
127 15181077 In our subjects, there did not appear to be any distinguishing clinical characteristics between CGL subjects with AGPAT2 or Gng3lg mutations with the exception of mental retardation in carriers of Gng3lg.
128 15181077 In summary, mutations in AGPAT2 and Gng3lg are approximately equally represented in CGL; despite harboring the same Gng3lg mutation, subjects may have widely divergent clinical manifestations, suggesting modifying influences of other genes and/or environment; and Brunzell syndrome may be caused by a mutation in AGPAT2.
129 15181077 Mutations in Gng3lg and AGPAT2 in Berardinelli-Seip congenital lipodystrophy and Brunzell syndrome: phenotype variability suggests important modifier effects.
130 15181077 Congenital generalized lipodystrophy (CGL) is a rare autosomal recessive disorder caused by mutations in AGPAT2 and Gng3lg.
131 15181077 We screened for mutations in AGPAT2 and Gng3lg in 26 families with CGL and one family with Brunzell syndrome.
132 15181077 We found mutations in either AGPAT2 or Gng3lg in all but four probands, including three novel mutations in AGPAT2, A712T (Lys215X), IVS3-1G-->C, and C636A (Phe189X).
133 15181077 In our subjects, there did not appear to be any distinguishing clinical characteristics between CGL subjects with AGPAT2 or Gng3lg mutations with the exception of mental retardation in carriers of Gng3lg.
134 15181077 In summary, mutations in AGPAT2 and Gng3lg are approximately equally represented in CGL; despite harboring the same Gng3lg mutation, subjects may have widely divergent clinical manifestations, suggesting modifying influences of other genes and/or environment; and Brunzell syndrome may be caused by a mutation in AGPAT2.
135 16246048 Congenital generalized lipodystrophy or Berardinelli-Seip syndrome, autosomal recessive, is characterized by a complete early lipoatrophy and severe insulin resistance and results, in most cases, from mutations either in the seipin gene of unknown function or AGPAT2 encoding an enzyme involved in triacylglycerol synthesis.
136 16246048 Some FPLDs are linked to loss-of-function mutations in the PPAR-gamma gene (peroxisome-proliferator-activated receptor gamma; FPLD3) with severe metabolic alterations but a less severe lipodystrophy compared with FPLD2.
137 16409151 Defects in several genes, such as those encoding an enzyme (AGPAT2), a nuclear receptor (PPARgamma), a nuclear lamina protein (LMNA) and its processing endoprotease (ZMPSTE24), a kinase (AKT2), and a protein of unknown function (BSCL2), have been found in patients with genetic lipodystrophies.
138 16435205 Phenotypic heterogeneity in biochemical parameters correlates with mutations in AGPAT2 or Seipin genes among Berardinelli-Seip congenital lipodystrophy patients.
139 16435205 We have previously reported that 22 patients from 16 consanguineous pedigrees living in the northeastern region of Brazil had a homozygous 669insA mutation in the Seipin gene (BSCL2 locus), while all of the 10 investigated subjects from the southeastern region were homozygous for a 1036 bp deletion in the AGPAT2 gene (BSCL1 locus).
140 16435205 In this study, we compared the serum insulin and insulin resistance (HOMA), leptin, triglyceride and fasting glucose levels in individuals of these two genetically distinct clusters of BSCL subjects.
141 16435205 Significant differences were detected for leptin, insulin and insulin resistance.
142 16435205 BSCL1 patients presented lower serum leptin levels compared to BSCL2 patients.
143 16435205 BSCL2 subjects had earlier onset of diabetes and higher insulin levels.
144 16435205 In agreement, BSCL2 patients were more insulin resistant, as detected by HOMA.
145 16435205 These results indicate phenotypic heterogeneity between BSCL1 and BSCL2 Brazilian subjects.
146 16435205 Phenotypic heterogeneity in biochemical parameters correlates with mutations in AGPAT2 or Seipin genes among Berardinelli-Seip congenital lipodystrophy patients.
147 16435205 We have previously reported that 22 patients from 16 consanguineous pedigrees living in the northeastern region of Brazil had a homozygous 669insA mutation in the Seipin gene (BSCL2 locus), while all of the 10 investigated subjects from the southeastern region were homozygous for a 1036 bp deletion in the AGPAT2 gene (BSCL1 locus).
148 16435205 In this study, we compared the serum insulin and insulin resistance (HOMA), leptin, triglyceride and fasting glucose levels in individuals of these two genetically distinct clusters of BSCL subjects.
149 16435205 Significant differences were detected for leptin, insulin and insulin resistance.
150 16435205 BSCL1 patients presented lower serum leptin levels compared to BSCL2 patients.
151 16435205 BSCL2 subjects had earlier onset of diabetes and higher insulin levels.
152 16435205 In agreement, BSCL2 patients were more insulin resistant, as detected by HOMA.
153 16435205 These results indicate phenotypic heterogeneity between BSCL1 and BSCL2 Brazilian subjects.
154 16435205 Phenotypic heterogeneity in biochemical parameters correlates with mutations in AGPAT2 or Seipin genes among Berardinelli-Seip congenital lipodystrophy patients.
155 16435205 We have previously reported that 22 patients from 16 consanguineous pedigrees living in the northeastern region of Brazil had a homozygous 669insA mutation in the Seipin gene (BSCL2 locus), while all of the 10 investigated subjects from the southeastern region were homozygous for a 1036 bp deletion in the AGPAT2 gene (BSCL1 locus).
156 16435205 In this study, we compared the serum insulin and insulin resistance (HOMA), leptin, triglyceride and fasting glucose levels in individuals of these two genetically distinct clusters of BSCL subjects.
157 16435205 Significant differences were detected for leptin, insulin and insulin resistance.
158 16435205 BSCL1 patients presented lower serum leptin levels compared to BSCL2 patients.
159 16435205 BSCL2 subjects had earlier onset of diabetes and higher insulin levels.
160 16435205 In agreement, BSCL2 patients were more insulin resistant, as detected by HOMA.
161 16435205 These results indicate phenotypic heterogeneity between BSCL1 and BSCL2 Brazilian subjects.
162 16435205 Phenotypic heterogeneity in biochemical parameters correlates with mutations in AGPAT2 or Seipin genes among Berardinelli-Seip congenital lipodystrophy patients.
163 16435205 We have previously reported that 22 patients from 16 consanguineous pedigrees living in the northeastern region of Brazil had a homozygous 669insA mutation in the Seipin gene (BSCL2 locus), while all of the 10 investigated subjects from the southeastern region were homozygous for a 1036 bp deletion in the AGPAT2 gene (BSCL1 locus).
164 16435205 In this study, we compared the serum insulin and insulin resistance (HOMA), leptin, triglyceride and fasting glucose levels in individuals of these two genetically distinct clusters of BSCL subjects.
165 16435205 Significant differences were detected for leptin, insulin and insulin resistance.
166 16435205 BSCL1 patients presented lower serum leptin levels compared to BSCL2 patients.
167 16435205 BSCL2 subjects had earlier onset of diabetes and higher insulin levels.
168 16435205 In agreement, BSCL2 patients were more insulin resistant, as detected by HOMA.
169 16435205 These results indicate phenotypic heterogeneity between BSCL1 and BSCL2 Brazilian subjects.
170 16435205 Phenotypic heterogeneity in biochemical parameters correlates with mutations in AGPAT2 or Seipin genes among Berardinelli-Seip congenital lipodystrophy patients.
171 16435205 We have previously reported that 22 patients from 16 consanguineous pedigrees living in the northeastern region of Brazil had a homozygous 669insA mutation in the Seipin gene (BSCL2 locus), while all of the 10 investigated subjects from the southeastern region were homozygous for a 1036 bp deletion in the AGPAT2 gene (BSCL1 locus).
172 16435205 In this study, we compared the serum insulin and insulin resistance (HOMA), leptin, triglyceride and fasting glucose levels in individuals of these two genetically distinct clusters of BSCL subjects.
173 16435205 Significant differences were detected for leptin, insulin and insulin resistance.
174 16435205 BSCL1 patients presented lower serum leptin levels compared to BSCL2 patients.
175 16435205 BSCL2 subjects had earlier onset of diabetes and higher insulin levels.
176 16435205 In agreement, BSCL2 patients were more insulin resistant, as detected by HOMA.
177 16435205 These results indicate phenotypic heterogeneity between BSCL1 and BSCL2 Brazilian subjects.
178 16435205 Phenotypic heterogeneity in biochemical parameters correlates with mutations in AGPAT2 or Seipin genes among Berardinelli-Seip congenital lipodystrophy patients.
179 16435205 We have previously reported that 22 patients from 16 consanguineous pedigrees living in the northeastern region of Brazil had a homozygous 669insA mutation in the Seipin gene (BSCL2 locus), while all of the 10 investigated subjects from the southeastern region were homozygous for a 1036 bp deletion in the AGPAT2 gene (BSCL1 locus).
180 16435205 In this study, we compared the serum insulin and insulin resistance (HOMA), leptin, triglyceride and fasting glucose levels in individuals of these two genetically distinct clusters of BSCL subjects.
181 16435205 Significant differences were detected for leptin, insulin and insulin resistance.
182 16435205 BSCL1 patients presented lower serum leptin levels compared to BSCL2 patients.
183 16435205 BSCL2 subjects had earlier onset of diabetes and higher insulin levels.
184 16435205 In agreement, BSCL2 patients were more insulin resistant, as detected by HOMA.
185 16435205 These results indicate phenotypic heterogeneity between BSCL1 and BSCL2 Brazilian subjects.
186 16574104 The Berardinelli-Seip congenital lipodystrophy type 2 (BSCL2) gene encodes an integral membrane protein, called seipin, of unknown function localized to the endoplasmic reticulum of eukaryotic cells.
187 16574104 Seipin is associated with the heterogeneous genetic disease BSCL2, and mutations in an N-glycosylation motif links the protein to two other disorders, autosomal-dominant distal hereditary motor neuropathy type V and Silver syndrome.
188 16574104 The Berardinelli-Seip congenital lipodystrophy type 2 (BSCL2) gene encodes an integral membrane protein, called seipin, of unknown function localized to the endoplasmic reticulum of eukaryotic cells.
189 16574104 Seipin is associated with the heterogeneous genetic disease BSCL2, and mutations in an N-glycosylation motif links the protein to two other disorders, autosomal-dominant distal hereditary motor neuropathy type V and Silver syndrome.
190 16735770 On the basis of mutational and haplotype analysis, BSCL families have been classified into three types BSCL 1, BSCL2 and BSCLX.
191 16735770 We report Berardinelli-Seip congenital lipodystrophy (BSCL2 type) in three subjects from two unrelated Indian families (family1 and family2).
192 16735770 On the basis of mutational and haplotype analysis, BSCL families have been classified into three types BSCL 1, BSCL2 and BSCLX.
193 16735770 We report Berardinelli-Seip congenital lipodystrophy (BSCL2 type) in three subjects from two unrelated Indian families (family1 and family2).
194 17320032 Genetic forms of generalized lipodystrophy (or Berardinelli-Seip syndrome) result, in most cases, from recessive mutations in one of two genes: either BSCL2 coding seipin or BSCL1 coding AGPAT2, an acyl-transferase involved in triglyceride synthesis.
195 17320032 Some less typical lipodystrophies, associated with signs of premature aging, have been linked to mutations in LMNA or in the ZMPSTE24 gene encoding the protease responsible for the maturation of prelamin A into lamin A.
196 18093937 The most severe inherited form is Berardinelli-Seip Congenital Lipodystrophy Type 2, associated with mutations in the BSCL2 gene.
197 18458148 The human lipodystrophy gene BSCL2/seipin may be essential for normal adipocyte differentiation.
198 19574402 The human lipodystrophy gene product Berardinelli-Seip congenital lipodystrophy 2/seipin plays a key role in adipocyte differentiation.
199 19574402 Mutations in the Berardinelli-Seip congenital lipodystrophy 2 gene (BSCL2) are the underlying defect in patients with congenital generalized lipodystrophy type 2.
200 19574402 In this study, we investigated the role of Bscl2 in the regulation of adipocyte differentiation.
201 19574402 Knockdown of Bscl2 by short hairpin RNA in C3H10T1/2 cells has no effect on bone morphogenetic protein-4-induced preadipocyte commitment.
202 19574402 These experiments suggest that Bscl2 may be essential for normal adipogenesis; it works upstream or at the level of peroxisome proliferator-activated receptor-gamma, enabling the latter to exert its full activity during adipogenesis.
203 19574402 The human lipodystrophy gene product Berardinelli-Seip congenital lipodystrophy 2/seipin plays a key role in adipocyte differentiation.
204 19574402 Mutations in the Berardinelli-Seip congenital lipodystrophy 2 gene (BSCL2) are the underlying defect in patients with congenital generalized lipodystrophy type 2.
205 19574402 In this study, we investigated the role of Bscl2 in the regulation of adipocyte differentiation.
206 19574402 Knockdown of Bscl2 by short hairpin RNA in C3H10T1/2 cells has no effect on bone morphogenetic protein-4-induced preadipocyte commitment.
207 19574402 These experiments suggest that Bscl2 may be essential for normal adipogenesis; it works upstream or at the level of peroxisome proliferator-activated receptor-gamma, enabling the latter to exert its full activity during adipogenesis.
208 19574402 The human lipodystrophy gene product Berardinelli-Seip congenital lipodystrophy 2/seipin plays a key role in adipocyte differentiation.
209 19574402 Mutations in the Berardinelli-Seip congenital lipodystrophy 2 gene (BSCL2) are the underlying defect in patients with congenital generalized lipodystrophy type 2.
210 19574402 In this study, we investigated the role of Bscl2 in the regulation of adipocyte differentiation.
211 19574402 Knockdown of Bscl2 by short hairpin RNA in C3H10T1/2 cells has no effect on bone morphogenetic protein-4-induced preadipocyte commitment.
212 19574402 These experiments suggest that Bscl2 may be essential for normal adipogenesis; it works upstream or at the level of peroxisome proliferator-activated receptor-gamma, enabling the latter to exert its full activity during adipogenesis.
213 19574402 The human lipodystrophy gene product Berardinelli-Seip congenital lipodystrophy 2/seipin plays a key role in adipocyte differentiation.
214 19574402 Mutations in the Berardinelli-Seip congenital lipodystrophy 2 gene (BSCL2) are the underlying defect in patients with congenital generalized lipodystrophy type 2.
215 19574402 In this study, we investigated the role of Bscl2 in the regulation of adipocyte differentiation.
216 19574402 Knockdown of Bscl2 by short hairpin RNA in C3H10T1/2 cells has no effect on bone morphogenetic protein-4-induced preadipocyte commitment.
217 19574402 These experiments suggest that Bscl2 may be essential for normal adipogenesis; it works upstream or at the level of peroxisome proliferator-activated receptor-gamma, enabling the latter to exert its full activity during adipogenesis.
218 19574402 The human lipodystrophy gene product Berardinelli-Seip congenital lipodystrophy 2/seipin plays a key role in adipocyte differentiation.
219 19574402 Mutations in the Berardinelli-Seip congenital lipodystrophy 2 gene (BSCL2) are the underlying defect in patients with congenital generalized lipodystrophy type 2.
220 19574402 In this study, we investigated the role of Bscl2 in the regulation of adipocyte differentiation.
221 19574402 Knockdown of Bscl2 by short hairpin RNA in C3H10T1/2 cells has no effect on bone morphogenetic protein-4-induced preadipocyte commitment.
222 19574402 These experiments suggest that Bscl2 may be essential for normal adipogenesis; it works upstream or at the level of peroxisome proliferator-activated receptor-gamma, enabling the latter to exert its full activity during adipogenesis.
223 20551664 Genetic forms are uncommon: recessive generalized congenital lipodystrophies result in most cases from mutations in the genes encoding seipin or the 1-acyl-glycerol-3-phosphate-acyltransferase 2(AGPAT2).
224 20684003 Three CGL loci, AGPAT2, BSCL2, and CAV1, have been identified previously.
225 20979188 We did not find a mutation in genes known to be associated with congenital lipodystrophy (APGAT2, BSCL2, CAV1, PTRF-CAVIN, PPARG, LMNB2) or with Hutchinson-Gilford progeria (ZMPSTE24, LMNA/C).
226 21392585 Overall, most of the proteins or functions affected by mutations or antiretrovirals result in altered adipogenesis and insulin sensitivity, triglyceride storage and formation of the unique adipocyte lipid droplet, oxidative stress and fat remodeling.
227 21392585 Some mutations or antiretrovirals could affect directly (peroxisome proliferator-activated receptor-γ, Akt2) or indirectly (lamin A/C, human immunodeficiency virus-protease inhibitors) adipogenesis, through the transcription factors peroxisome proliferator-activated receptor gamma-γ or sterol regulatory element binding protein 1c, and insulin signaling through Akt2 that controls adipocyte lipolysis.
228 21392585 A number of proteins mutated in genetic lipodystrophies are involved in the control of triglyceride synthesis towards the lipid droplet (1-acylglycerol-3-phosphate-O-acyltransferase 2), or its functions (seipin, cell death-inducing DFF45-like effector C, perilipin, caveolin-1, cavin-1).
229 21744063 To confirm the clinical hypothesis of congenital generalized lipodystrophy (CGL) or Berardinelli-Seip syndrome, the sequences of AGPAT2 (encoding for 1-acyl-sn-glycerol-3-phosphate acyltransferase beta) and BSCL2 (encoding for seipin) candidate genes were analyzed.