Search results for "Mendelian Inheritance in Man"

showing 4 items of 4 documents

Identification and prevention of genotyping errors caused by G-quadruplex- and i-motif-like sequences.

2009

Abstract Background: Reliable PCR amplification of DNA fragments is the prerequisite for most genetic assays. We investigated the impact of G-quadruplex– or i-motif–like sequences on the reliability of PCR-based genetic analyses. Methods: We found the sequence context of a common intronic polymorphism in the MEN1 gene (multiple endocrine neoplasia I) to be the cause of systematic genotyping errors by inducing preferential amplification of one allelic variant [allele dropout (ADO)]. Bioinformatic analyses and pyrosequencing-based allele quantification enabled the identification of the underlying DNA structures. Results: We showed that G-quadruplex– or i-motif–like sequences can reproducibly …

GeneticsdbSNPBase SequenceGenotypeBiochemistry (medical)Clinical BiochemistrySingle-nucleotide polymorphismDNABiologyPolymerase Chain ReactionPolymorphism Single Nucleotidelaw.inventionG-QuadruplexeslawProto-Oncogene ProteinsGenotypeOMIM : Online Mendelian Inheritance in ManAlleleGeneGenotypingPolymerase chain reactionClinical chemistry
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Girl With Partial Turner Syndrome and Absence Epilepsy

2007

This report describes a 16-year-old girl with short stature (-5 standard deviations), normal puberty, panic attacks, absence epilepsy, some stigmata of Turner syndrome, and a Madelung deformity. Routine chromosomal analysis revealed a female karyotype with one abnormal chromosome X, with the suspicion of additional material on the short arm. With fluorescent in situ hybridization and array-multiplex amplifiable probe hybridization methodology, a complex aberration was detected, with a deletion of the distal part of Xp22.33 (including the short-stature homeobox gene) and a duplication of Xp22.32-p22.12 proximal to the deleted segment. The deletion in our patient involves the Xp22.33 region. …

Homeodomain ProteinsGeneticsAdolescentTurner SyndromeKaryotypeBiologymedicine.diseaseShort statureEpilepsy AbsenceShort Stature Homeobox ProteinDevelopmental NeuroscienceNeurologyShort Stature Homeobox ProteinPediatrics Perinatology and Child HealthGene duplicationTurner syndromemedicineOMIM : Online Mendelian Inheritance in ManHumansHomeoboxFemaleNeurology (clinical)medicine.symptomX chromosomePediatric Neurology
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Clinical features and follow-up in patients with 22q11.2 deletion syndrome

2014

Objective To investigate the clinical manifestations at diagnosis and during follow-up in patients with 22q11.2 deletion syndrome to better define the natural history of the disease. Study design A retrospective and prospective multicenter study was conducted with 228 patients in the context of the Italian Network for Primary Immunodeficiencies. Clinical diagnosis was confirmed by cytogenetic or molecular analysis. Results The cohort consisted of 112 males and 116 females; median age at diagnosis was 4 months (range 0 to 36 years 10 months). The diagnosis was made before 2 years of age in 71% of patients, predominantly related to the presence of heart anomalies and neonatal hypocalcemia. In…

MalePediatrics22q11.2 deletionDelayed DiagnosisTime FactorsChromosomes Human Pair 22Developmental Disabilitiesdigeorge syndromeSex FactorSeverity of Illness IndexRetrospective StudieDiGeorge syndromeEarly DiagnosiAge FactorProspective StudiesNeonatal hypocalcemiaProspective cohort studyChildmedicine.diagnostic_testDelayed Diagnosi22q11.2 deletion; Primary immune disordersAge Factorsdel 22qMIMAbnormalities Multiple; Adolescent; Adult; Age Factors; Child; Child Preschool; Chromosomes Human Pair 22; Delayed Diagnosis; Developmental Disabilities; DiGeorge Syndrome; Early Diagnosis; Female; Follow-Up Studies; Genetic Testing; Humans; Infant; Infant Newborn; Male; Monitoring Physiologic; Prospective Studies; Retrospective Studies; Risk Assessment; Severity of Illness Index; Sex Factors; Time Factors; Young Adult; Disease ProgressionChild PreschoolCohortDisease ProgressionPrimary immune disordersFemaleAbnormalitiesMultipleAbnormalities Multiple; Adolescent; Adult; Age Factors; Child; Child Preschool; Chromosomes Human Pair 22; Delayed Diagnosis; Developmental Disabilities; DiGeorge Syndrome; Early Diagnosis; Female; Follow-Up Studies; Genetic Testing; Humans; Infant; Infant Newborn; Male; Monitoring Physiologic; Prospective Studies; Retrospective Studies; Risk Assessment; Severity of Illness Index; Sex Factors; Time Factors; Young Adult; Disease Progression; Pediatrics Perinatology and Child HealthHumanAdultmedicine.medical_specialtyTime FactorAdolescentMonitoringDevelopmental DisabilitieItalian Association of Pediatric Haematology and OncologyContext (language use)Risk AssessmentChromosomesFollow-Up StudieYoung AdultSex FactorsSeverity of illnessmedicineDiGeorge SyndromeHumansAbnormalities MultipleGenetic Testing22q11DS; 22q11.2 deletion syndrome; AIEOP; Italian Association of Pediatric Haematology and Oncology; MIM; Mendelian Inheritance in Man22q11DSPreschoolPhysiologicdigeorge syndrome; del 22qGenetic testingMonitoring PhysiologicRetrospective StudiesSettore MED/38 - Pediatria Generale e Specialisticabusiness.industryMendelian Inheritance in ManInfant NewbornInfantRetrospective cohort studymedicine.diseaseNewbornAIEOPProspective StudieEarly Diagnosis22q11.2 deletion syndromePediatrics Perinatology and Child HealthPair 22businessFollow-Up Studies
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Genetic, clinical and radiographic signs in knee osteoarthritis susceptibility

2014

Abstract INTRODUCTION: Osteoarthritis (OA) is considered to be a multifactorial and polygenic disease and diagnosis is mainly clinical and radiological. Correlation between radiographic data and clinical status has been reported. However, very few studies, especially in Caucasian people, describe the association between the Kellgren and Lawrence OA grading scale (KL) and genetic alterations to better understand OA etiopathogenesis and susceptibility. In order to update the knee OA grading, in this study we assessed the associations between KL grade, clinical features such as American Knee Society Score (AKSS), age, and polymorphisms in the principal osteoarthritis susceptibility (OS) genes …

Malemedicine.medical_specialtyPathologydbSNPGenotypeSingle Nucleotide PolymorphismsImmunologySingle-nucleotide polymorphismOsteoarthritisPolymorphism Single NucleotideRadiographicRheumatologyInternal medicineSettore MED/33 - Malattie Apparato LocomotoreOMIM : Online Mendelian Inheritance in ManHumansImmunology and AllergyMedicineGenetic Predisposition to DiseaseGrading (tumors)AgedAged 80 and overReverse Transcriptase Polymerase Chain Reactionbusiness.industryMiddle AgedOsteoarthritis Kneemedicine.diseaseRheumatologyRadiographyOrthopedic surgeryCohortFemaleOsteoarthritibusinessResearch ArticleArthritis Research & Therapy
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