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  1. Article ; Online: Discrimination of SNPs in GC-rich regions using a modified hydrolysis probe chemistry protocol.

    Mowjoodi, Alireza / Paton, Tara A / Scherer, Stephen W

    BioTechniques

    2014  Volume 57, Issue 6, Page(s) 313–316

    Abstract: Allelic discrimination using TaqMan 5'-nuclease assay chemistry has been in routine use for many years, and the catalog of Life Technologies' predesigned SNP genotyping assays now exceeds 4 million entries. However, predesigned assays are often not ... ...

    Abstract Allelic discrimination using TaqMan 5'-nuclease assay chemistry has been in routine use for many years, and the catalog of Life Technologies' predesigned SNP genotyping assays now exceeds 4 million entries. However, predesigned assays are often not available for genomic regions with a high GC content, nor can an assay necessarily be designed in this type of region using the manufacturer's design pipelines. Additionally, when an assay is available, the performance can be poor when using standard protocols. Here we report a modified allelic discrimination protocol for variants that reside in extremely GC-rich (GC > 75%) regions. The approach resolves fluorescent signal from reference and variant alleles, allowing all samples to be successfully assigned a genotype call. This protocol modification adds an extra step to the standard workflow, but the increased time is a productive compromise to generate high-quality data.
    MeSH term(s) DNA/analysis ; DNA/chemistry ; DNA/genetics ; GC Rich Sequence/genetics ; Genotype ; Hydrolysis ; Molecular Probes/genetics ; Polymerase Chain Reaction/methods ; Polymorphism, Single Nucleotide/genetics ; Sequence Analysis, DNA/methods
    Chemical Substances Molecular Probes ; DNA (9007-49-2)
    Language English
    Publishing date 2014-12
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 48453-2
    ISSN 1940-9818 ; 0736-6205
    ISSN (online) 1940-9818
    ISSN 0736-6205
    DOI 10.2144/000114240
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Comprehensive whole-genome sequence analyses provide insights into the genomic architecture of cerebral palsy.

    Fehlings, Darcy L / Zarrei, Mehdi / Engchuan, Worrawat / Sondheimer, Neal / Thiruvahindrapuram, Bhooma / MacDonald, Jeffrey R / Higginbotham, Edward J / Thapa, Ritesh / Behlim, Tarannum / Aimola, Sabrina / Switzer, Lauren / Ng, Pamela / Wei, John / Danthi, Prakroothi S / Pellecchia, Giovanna / Lamoureux, Sylvia / Ho, Karen / Pereira, Sergio L / de Rijke, Jill /
    Sung, Wilson W L / Mowjoodi, Alireza / Howe, Jennifer L / Nalpathamkalam, Thomas / Manshaei, Roozbeh / Ghaffari, Siavash / Whitney, Joseph / Patel, Rohan V / Hamdan, Omar / Shaath, Rulan / Trost, Brett / Knights, Shannon / Samdup, Dawa / McCormick, Anna / Hunt, Carolyn / Kirton, Adam / Kawamura, Anne / Mesterman, Ronit / Gorter, Jan Willem / Dlamini, Nomazulu / Merico, Daniele / Hilali, Murto / Hirschfeld, Kyle / Grover, Kritika / Bautista, Nelson X / Han, Kara / Marshall, Christian R / Yuen, Ryan K C / Subbarao, Padmaja / Azad, Meghan B / Turvey, Stuart E / Mandhane, Piush / Moraes, Theo J / Simons, Elinor / Maxwell, George / Shevell, Michael / Costain, Gregory / Michaud, Jacques L / Hamdan, Fadi F / Gauthier, Julie / Uguen, Kevin / Stavropoulos, Dimitri J / Wintle, Richard F / Oskoui, Maryam / Scherer, Stephen W

    Nature genetics

    2024  Volume 56, Issue 4, Page(s) 585–594

    Abstract: We performed whole-genome sequencing (WGS) in 327 children with cerebral palsy (CP) and their biological parents. We classified 37 of 327 (11.3%) children as having pathogenic/likely pathogenic (P/LP) variants and 58 of 327 (17.7%) as having variants of ... ...

    Abstract We performed whole-genome sequencing (WGS) in 327 children with cerebral palsy (CP) and their biological parents. We classified 37 of 327 (11.3%) children as having pathogenic/likely pathogenic (P/LP) variants and 58 of 327 (17.7%) as having variants of uncertain significance. Multiple classes of P/LP variants included single-nucleotide variants (SNVs)/indels (6.7%), copy number variations (3.4%) and mitochondrial mutations (1.5%). The COL4A1 gene had the most P/LP SNVs. We also analyzed two pediatric control cohorts (n = 203 trios and n = 89 sib-pair families) to provide a baseline for de novo mutation rates and genetic burden analyses, the latter of which demonstrated associations between de novo deleterious variants and genes related to the nervous system. An enrichment analysis revealed previously undescribed plausible candidate CP genes (SMOC1, KDM5B, BCL11A and CYP51A1). A multifactorial CP risk profile and substantial presence of P/LP variants combine to support WGS in the diagnostic work-up across all CP and related phenotypes.
    MeSH term(s) Humans ; Child ; DNA Copy Number Variations/genetics ; Cerebral Palsy/genetics ; Mutation ; Whole Genome Sequencing ; Genomics
    Language English
    Publishing date 2024-03-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1108734-1
    ISSN 1546-1718 ; 1061-4036
    ISSN (online) 1546-1718
    ISSN 1061-4036
    DOI 10.1038/s41588-024-01686-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Genetic variation at the ACE gene is associated with persistent microalbuminuria and severe nephropathy in type 1 diabetes: the DCCT/EDIC Genetics Study.

    Boright, Andrew P / Paterson, Andrew D / Mirea, Lucia / Bull, Shelley B / Mowjoodi, Alireza / Scherer, Stephen W / Zinman, Bernard

    Diabetes

    2004  Volume 54, Issue 4, Page(s) 1238–1244

    Abstract: The development and progression of microvascular complications have been extensively documented in a cohort of type 1 diabetic subjects enrolled in the Diabetes Control and Complications Trial (DCCT) and followed in the Epidemiology of Diabetes ... ...

    Abstract The development and progression of microvascular complications have been extensively documented in a cohort of type 1 diabetic subjects enrolled in the Diabetes Control and Complications Trial (DCCT) and followed in the Epidemiology of Diabetes Interventions and Complications (EDIC) study. We describe the association of genetic variation in the ACE gene in 1,365 DCCT/EDIC subjects with incident persistent microalbuminuria (n = 312) and severe nephropathy (n = 115). We studied three markers (rs1800764, insertion/deletion, and rs9896208) in the ACE gene that allowed us to capture genetic variation in the common haplotypes occurring at frequencies of >5% in Caucasians. Compared with the more frequent genotype (D/I) for the insertion/deletion polymorphism, in multivariate models, the I/I genotype conferred a lower risk for persistent microalbuminuria (hazard ratio [HR] 0.62 [95% CI 0.43-0.89], P = 0.009) and severe nephropathy (0.56 [0.32-0.96], P = 0.033). Variation at the two other markers, rs1800764 and rs9896208, were also associated with these renal outcomes. In addition, homozygosity for the common haplotype TIC (which corresponded to the T, insertion, and C alleles at the three markers, rs1800764, insertion/deletion, and rs9896208, respectively) versus the CDT/TIC haplotype pair was associated with lower risk for development of persistent microalbuminuria (HR 0.49 [0.32-0.75], P = 0.0009) and severe nephropathy (0.41 [0.22-0.78], P = 0.006). Our findings in the DCCT/EDIC cohort provide strong evidence that genetic variation at the ACE gene is associated with the development of nephropathy in patients with type 1 diabetes.
    MeSH term(s) Albuminuria/enzymology ; Albuminuria/genetics ; Albuminuria/physiopathology ; Diabetic Nephropathies/enzymology ; Diabetic Nephropathies/genetics ; Diabetic Nephropathies/physiopathology ; Female ; Genetic Markers ; Genetic Predisposition to Disease ; Genetic Variation ; Genotype ; Haplotypes ; Homozygote ; Humans ; Male ; Peptidyl-Dipeptidase A/genetics
    Chemical Substances Genetic Markers ; ACE protein, human (EC 3.4.15.1) ; Peptidyl-Dipeptidase A (EC 3.4.15.1)
    Language English
    Publishing date 2004-06-08
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 80085-5
    ISSN 1939-327X ; 0012-1797
    ISSN (online) 1939-327X
    ISSN 0012-1797
    DOI 10.2337/diabetes.54.4.1238
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Three major glucose-6-phosphate dehydrogenase-deficient polymorphic variants identified in Mazandaran state of Iran.

    Mesbah-Namin, Seyed A / Sanati, Mohammad H / Mowjoodi, Alireza / Mason, Philip J / Vulliamy, Tom J / Noori-Daloii, Mohammad R

    British journal of haematology

    1999  Volume 117, Issue 3, Page(s) 763–764

    Abstract: We report the first investigation of glucose- 6-phosphate dehydrogenase (G6PD) deficiency among the Mazandaranians in the north of Iran. We analysed the G6PD gene in 74 unrelated G6PD-deficient men with a history of favism. Molecular analysis revealed ... ...

    Abstract We report the first investigation of glucose- 6-phosphate dehydrogenase (G6PD) deficiency among the Mazandaranians in the north of Iran. We analysed the G6PD gene in 74 unrelated G6PD-deficient men with a history of favism. Molecular analysis revealed three major different polymorphic variants: G6PD Mediterranean 66.2% (49 out of 74), G6PD Chatham 27% (20 out of 74), G6PD Cosenza 6.75% (5 out of 74). These findings indicated a higher prevalence of G6PD Chatham in this Iranian population than anywhere else in the world. In addition, the distribution of these G6PD variants is more similar to that found in an Italian population than in other Middle Eastern countries.
    MeSH term(s) Child ; Child, Preschool ; Favism/etiology ; Glucosephosphate Dehydrogenase/genetics ; Glucosephosphate Dehydrogenase Deficiency/complications ; Glucosephosphate Dehydrogenase Deficiency/ethnology ; Glucosephosphate Dehydrogenase Deficiency/genetics ; Humans ; Iran ; Male ; Mutation ; Polymorphism, Genetic
    Chemical Substances Glucosephosphate Dehydrogenase (EC 1.1.1.49)
    Language English
    Publishing date 1999-08-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 80077-6
    ISSN 1365-2141 ; 0007-1048
    ISSN (online) 1365-2141
    ISSN 0007-1048
    DOI 10.1046/j.1365-2141.2002.03483.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Multiple superoxide dismutase 1/splicing factor serine alanine 15 variants are associated with the development and progression of diabetic nephropathy: the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications Genetics study.

    Al-Kateb, Hussam / Boright, Andrew P / Mirea, Lucia / Xie, Xinlei / Sutradhar, Rinku / Mowjoodi, Alireza / Bharaj, Bhupinder / Liu, Michelle / Bucksa, Jean M / Arends, Valerie L / Steffes, Michael W / Cleary, Patricia A / Sun, Wanjie / Lachin, John M / Thorner, Paul S / Ho, Michael / McKnight, Amy Jayne / Maxwell, A Peter / Savage, David A /
    Kidd, Kenneth K / Kidd, Judith R / Speed, William C / Orchard, Trevor J / Miller, Rachel G / Sun, Lei / Bull, Shelley B / Paterson, Andrew D

    Diabetes

    2007  Volume 57, Issue 1, Page(s) 218–228

    Abstract: Background: Despite familial clustering of nephropathy and retinopathy severity in type 1 diabetes, few gene variants have been consistently associated with these outcomes.: Research design and methods: We performed an individual-based genetic ... ...

    Abstract Background: Despite familial clustering of nephropathy and retinopathy severity in type 1 diabetes, few gene variants have been consistently associated with these outcomes.
    Research design and methods: We performed an individual-based genetic association study with time to renal and retinal outcomes in 1,362 white probands with type 1 diabetes from the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) study. Specifically, we genotyped 1,411 SNPs that capture common variations in 212 candidate genes for long-term complications and analyzed them for association with the time from DCCT baseline to event for renal and retinal outcomes using multivariate Cox proportion hazards models. To address multiple testing and assist interpretation of the results, false discovery rate q values were calculated separately for each outcome.
    Results: We observed association between rs17880135 in the 3' region of superoxide dismutase 1 (SOD1) and the incidence of both severe nephropathy (hazard ratio [HR] 2.62 [95% CI 1.64-4.18], P = 5.6 x 10(-5), q = 0.06) and persistent microalbuminuria (1.82 [1.29-2.57], P = 6.4 x 10(-4), q = 0.46). Sequencing and fine-mapping identified additional SOD1 variants, including rs202446, rs9974610, and rs204732, which were also associated (P < 10(-3)) with persistent microalbuminuria, whereas rs17880135 and rs17881180 were similarly associated with the development of severe nephropathy. Attempts to replicate the findings in three cross-sectional case-control studies produced equivocal results. We observed no striking differences between risk genotypes in serum SOD activity, serum SOD1 mass, or SOD1 mRNA expression in lymphoblastoid cell lines.
    Conclusions: Multiple variations in SOD1 are significantly associated with persistent microalbuminuria and severe nephropathy in the DCCT/EDIC study.
    MeSH term(s) Alanine ; Albuminuria/genetics ; Amino Acid Substitution ; Diabetic Nephropathies/drug therapy ; Diabetic Nephropathies/enzymology ; Diabetic Nephropathies/genetics ; Diabetic Retinopathy/genetics ; Disease Progression ; Genetic Variation ; Genotype ; Humans ; Hypoglycemic Agents/therapeutic use ; Nuclear Proteins/genetics ; Polymorphism, Single Nucleotide ; RNA-Binding Proteins/genetics ; Serine ; Serine-Arginine Splicing Factors ; Superoxide Dismutase/genetics ; Superoxide Dismutase-1 ; Treatment Outcome
    Chemical Substances Hypoglycemic Agents ; Nuclear Proteins ; RNA-Binding Proteins ; SOD1 protein, human ; Serine-Arginine Splicing Factors (170974-22-8) ; Serine (452VLY9402) ; Superoxide Dismutase (EC 1.15.1.1) ; Superoxide Dismutase-1 (EC 1.15.1.1) ; Alanine (OF5P57N2ZX)
    Language English
    Publishing date 2007-10-03
    Publishing country United States
    Document type Journal Article ; Multicenter Study ; Randomized Controlled Trial ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 80085-5
    ISSN 1939-327X ; 0012-1797
    ISSN (online) 1939-327X
    ISSN 0012-1797
    DOI 10.2337/db07-1059
    Database MEDical Literature Analysis and Retrieval System OnLINE

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