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Case Reports in Genetics

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https://www.readbyqxmd.com/read/29333303/schinzel-giedion-syndrome-with-congenital-megacalycosis-in-a-turkish-patient-report-of-setbp1-mutation-and-literature-review-of-the-clinical-features
#1
Ozgul Bulut, Zeynep Ince, Umut Altunoglu, Sukran Yildirim, Asuman Coban
Schinzel-Giedion syndrome (SGS) is a rare autosomal dominant disorder that results in facial dysmorphism, multiple congenital anomalies, and an increased risk of malignancy. Recently, using exome sequencing, de novo heterozygous mutations in the SETBP1 gene have been identified in patients with SGS. Most affected individuals do not survive after childhood because of the severity of this disorder. Here, we report SETBP1 mutation confirmed by molecular analysis in a case of SGS with congenital megacalycosis.
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/29318063/novel-splicing-mutation-in-b3gat3-associated-with-short-stature-gh-deficiency-hypoglycaemia-developmental-delay-and-multiple-congenital-anomalies
#2
Samuel Bloor, Dinesh Giri, Mohammed Didi, Senthil Senniappan
B3GAT3, encoding β-1,3-glucuronyltransferase 3, has an important role in proteoglycan biosynthesis. Homozygous B3GAT3 mutations have been associated with short stature, skeletal deformities, and congenital heart defects. We describe for the first time a novel heterozygous splice site mutation in B3GAT3 contributing to severe short stature, growth hormone (GH) deficiency, recurrent ketotic hypoglycaemia, facial dysmorphism, and congenital heart defects. A female infant, born at 34 weeks' gestation to nonconsanguineous Caucasian parents with a birth weight of 1...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/29214085/sox5-null-heterozygous-mutation-in-a-family-with-adult-onset-hyperkinesia-and-behavioral-abnormalities
#3
Michael Zech, Katharina Poustka, Sylvia Boesch, Riccardo Berutti, Tim M Strom, Wolfgang Grisold, Werner Poewe, Juliane Winkelmann
SOX5 encodes a conserved transcription factor implicated in cell-fate decisions of the neural lineage. SOX5 haploinsufficiency induced by larger genomic deletions has been linked to a recognizable pediatric syndrome combining developmental delay with intellectual disability, mild dysmorphism, inadequate behavior, and variable additional features including motor disturbances. In contrast to SOX5-involving deletions, examples of pathogenic SOX5 small coding variations are sparse in the literature and have been described only in singular cases with phenotypic abnormalities akin to those seen in the SOX5 microdeletion syndrome...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/29158924/methylmalonic-acidemia-with-novel-mut-gene-mutations
#4
Inusha Panigrahi, Savita Bhunwal, Harish Varma, Simranjeet Singh
A 5-year-old boy presented with recurrent episodes of fever, feeding problems, lethargy, from the age of 11 months, and poor weight gain. He was admitted and evaluated for metabolic causes and diagnosed as having methylmalonic acidemia (MMA). He was treated with vit B12 and carnitine supplements and has been on follow-up for the last 3 years. Mutation analysis by next generation sequencing (NGS), supplemented with Sanger sequencing, revealed two novel variants in the MUT gene responsible for MMA in exon 5 and exon 3, respectively...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/29123929/palpitations-and-asthenia-associated-with-venlafaxine-in-a-cyp2d6-poor-metabolizer-and-cyp2c19-intermediate-metabolizer
#5
Sofia Garcia, Michael Schuh, Anvir Cheema, Herjot Atwal, Paldeep S Atwal
Cardiotoxicity has been extensively reported in venlafaxine (VEN) overdoses. Asthenia is also among the common side effects described for this antidepressant. VEN is metabolized mainly by CYP2D6 and to a minor extent by CYP2C19 to the major active metabolite O-desmethylvenlafaxine (ODV). Altered pharmacokinetic parameters in patients with polymorphisms in the CYP2D6 and CYP2C19 genes that result in decreased enzymatic activity have been documented. Here we describe a patient case of VEN associated palpitations and asthenia...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28948053/a-smarca2-mutation-in-the-first-case-report-of-nicolaides-baraitser-syndrome-in-latin-america-genotype-phenotype-correlation
#6
Ana Isabel Sánchez, Jorge Armando Rojas
Nicolaides-Baraitser syndrome (NCBRS) is a rare and well-recognized entity that was first described in 1993, with a prevalence that is currently not known. It is recognized as a distinctive entity, with some variability in its signs and symptoms. The most important characteristics include intellectual disability, peculiar facial features including sparse scalp hair, coarse facial features, low frontal hairline, and microcephaly, and seizures. Additional features may include epicanthic folds, thin upper lip vermilion with thick lower lip vermilion, skeletal abnormalities, and severe language impairment...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28928994/foxe1-mutation-screening-in-a-case-with-cleft-lip-hypothyroidism-and-thyroid-carcinoma-a-new-syndrome
#7
Hugo Mendieta-Zerón, Angélica Jiménez-Rosales, Carlos Jhovani Pérez-Amado, Silvia Jiménez-Morales
A 26-year-old woman is referred to the Internal Medicine consultation due to increases in laboratory studies associated with Papillary Thyroid Carcinoma (PTC) that was confirmed by histopathological studies. Her clinical history revealed that, at 3 months of age, she was successfully treated with surgery for cleft lip (CL) and at the age of 24 years was diagnosed with hypothyroidism. Single nucleotide polymorphisms (SNPs) in FOXE1 and its promoter regions have been associated with various etiologies related to the thyroid, including orofacial clefting, specially cleft palate (CP) and CL, hypothyroidism (HT), and thyroid cancer...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28928993/what-drives-embryo-development-chromosomal-normality-or-mitochondria
#8
A Bayram, I Elkhatib, A Arnanz, A Linan, F Ruiz, B Lawrenz, H M Fatemi
OBJECTIVE: To report the arrest of euploid embryos with high mtDNA content. DESIGN: A report of 2 cases. SETTING: Private fertility clinic. PATIENTS: 2 patients, 45 and 40 years old undergoing IVF treatment. INTERVENTIONS: Mature oocytes were collected and vitrified from two ovarian stimulations. Postthaw, survived mature oocytes underwent fertilization by intracytoplasmic sperm injection (ICSI)...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28884032/neurological-manifestations-of-x-linked-ichthyosis-case-report-and-review-of-the-literature
#9
William S Baek, Umut Aypar
A 5-year-old boy presented with mild autism and attention-deficit hyperactivity disorder (ADHD). Chromosomal microarray demonstrated a 1.7 Mb deletion at Xp22.31, which was consistent with X-linked ichthyosis (XLI). Further exam revealed dry, scaly skin on his abdomen and pretibial areas. Patients with mutations involving solely the STS gene or the recurrent ~2 Mb deletion may present with ADHD, whereas those with larger deletions including the NLGN4 gene can present with both ADHD and autism. However, our patient presented with mild autism in addition to ADHD despite having only the recurrent deletion without loss of NLGN4...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28819573/an-interstitial-4q-deletion-with-a-mosaic-complementary-ring-chromosome-in-a-child-with-dysmorphism-linear-skin-pigmentation-and-hepatomegaly
#10
J Carter, H Brittain, D Morrogh, N Lench, J J Waters
Interstitial deletions of 4q are rarely reported, vary in size, and have limited genotype-phenotype correlations. Here, genome-wide array CGH analysis identified a 21.6 Mb region of copy number loss at 4q12-q21.1 in a patient diagnosed with dysmorphism, linear skin pigmentation, and hepatomegaly. An additional small ring chromosome was detected in 5/30 cells examined via G-banding. Confirmation of the origin of the ring chromosome was obtained by FISH analysis which identified that the ring chromosome contained material from the deleted region of chromosome 4 and was therefore complementary to the 21...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28584669/freeman-sheldon-syndrome-first-molecularly-confirmed-case-from-sub-saharan-africa
#11
A M Ali, R M Mbwasi, G Kinabo, E-J Kamsteeg, B C Hamel, M C J Dekker
We report a case of a male baby who has characteristic signs of Freeman-Sheldon syndrome, a rare but recognizable, severe autosomal dominant form of distal arthrogryposis. Diagnosis was based on the distinctive clinical characteristics of the syndrome and confirmed by genetic analysis that showed a de novo missense mutation c.2015G>A (p.Arg672His) of the MYH3 gene. We highlight the different features present in our patient and describe the etiology of the Freeman-Sheldon phenotype and how its clinical complications can be dealt with...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28523196/neoplasia-in-cri-du-chat-syndrome-from-italian-and-german-databases
#12
Andrea Guala, Marianna Spunton, Silvia Kalantari, Ingo Kennerknecht, Cesare Danesino
Cri du Chat syndrome (CdC) is a chromosomal abnormality (deletion of short arm of chromosome 5) associated with intellectual disability and typical anatomical abnormalities. Research up to now focuses on the management of the disease during childhood. The longer lifespan of these patients warrants deeper investigations of how and if aging could be affected by the syndrome. We decided to focus on the association of the disease with proliferative disorders. Data on proliferative disorders in a cohort of 321 patients from Italian and German Cri du Chat databases were collected...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28487785/pathogenic-variant-in-actb-p-arg183trp-causes-juvenile-onset-dystonia-hearing-loss-and-developmental-delay-without-midline-malformation
#13
Erin Conboy, Filippo Vairo, Darrel Waggoner, Carole Ober, Soma Das, Radhika Dhamija, Eric W Klee, Pavel Pichurin
ACTB encodes the β-actin, and pathogenic variations in this gene have typically been associated with Baraitser-Winter cerebrofrontofacial syndrome, a congenital malformation syndrome characterized by short stature, craniofacial anomalies, and cerebral anomalies. Here, we describe the third case with the p.Arg183Trp variant in ACTB causing juvenile-onset dystonia. Our patient has severe, intractable dystonia, developmental delay, and sensorineural hearing loss, besides hyperintensities in the caudate nuclei and putamen on the brain MRI, which is a distinct but overlapping phenotype with the previously reported case of identical twins with the same alteration in ACTB...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28487784/respiratory-failure-due-to-severe-obesity-and-kyphoscoliosis-in-a-24-year-old-male-with-molecularly-confirmed-prader-willi-syndrome-in-tertiary-hospital-in-northern-tanzania
#14
Elichilia R Shao, Lucas F Kiyegi, Amos O Mwasamwaja, Kajiru Kilonzo, Ben C J Hamel
Obesity, mild intellectual disability, hypotonia, poor sucking, cryptorchidism in males, hypogonadism, and kyphoscoliosis are common features of Prader-Willi syndrome (PWS). We report a case who had severe respiratory complications due to extreme obesity and kyphoscoliosis, which are important causes of morbidity and mortality, and discuss management. Furthermore, this is the first molecularly confirmed PWS case in Sub-Saharan Africa outside South Africa.
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28465847/prenatal-diagnosis-of-a-2-5%C3%A2-mb-de-novo-17q24-1q24-2-deletion-encompassing-kpna2-and-psmd12-genes-in-a-fetus-with-craniofacial-dysmorphism-equinovarus-feet-and-syndactyly
#15
Marie-Emmanuelle Naud, Lucie Tosca, Jelena Martinovic, Julien Saada, Corinne Métay, Loïc Drévillon, Virginie Benoit, Sophie Brisset, Gérard Tachdjian
Interstitial 17q24.1 or 17q24.2 deletions were reported after conventional cytogenetic analysis or chromosomal microarray analysis in patients presenting intellectual disability, facial dysmorphism, and/or malformations. We report on a fetus with craniofacial dysmorphism, talipes equinovarus, and syndactyly associated with a de novo 2.5 Mb 17q24.1q24.2 deletion. Among the deleted genes, KPNA2 and PSMD12 are discussed for the correlation with the fetal phenotype. This is the first case of prenatal diagnosis of 17q24...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28392951/three-novel-mutations-in-the-nphs1-gene-in-vietnamese-patients-with-congenital-nephrotic-syndrome
#16
Thi Kim Lien Nguyen, Van Dem Pham, Thu Huong Nguyen, Trung Kien Pham, Thi Quynh Huong Nguyen, Huy Hoang Nguyen
Congenital nephrotic syndrome, a rare and severe disease, is inherited as an autosomal recessive trait. The disease manifests shortly after birth and occurs predominantly in families of Finnish origin but has now been observed in all countries and races. Mutations in the NPHS1 gene, which encodes nephrin, are the main causes of congenital nephrotic syndrome in patients. In this study, we report the first mutational analysis of the NPHS1 gene in three unrelated children from three different Vietnamese families...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28377826/goldenhar-syndrome-with-dextrocardia-and-right-pulmonary-hypoplasia-an-unusual-association
#17
Nagendra Chaudhary, Sandeep Shrestha, Hemant Kumar Halwai
Goldenhar syndrome (GS), a rare condition, occurring due to defect in development of first and second branchial arches, is characterized by a combination of various anomalies involving face, eyes, ears, vertebrae, heart, and lungs. The etiology of GS is not fully known, although various hypotheses have been proposed along with its genetic association and many other causes. Facial asymmetry and hypoplasia of the mandible are characteristic features of GS along with microtia and preauricular appendages and pits...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28261508/urea-cycle-defects-early-onset-disease-associated-with-a208t-mutation-in-otc-gene-expanding-the-clinical-phenotype
#18
Ana Isabel Sánchez, Alejandra Rincón, Mary García, Fernando Suárez-Obando
Ornithine transcarbamylase deficiency (OMIM: 311250) is the most common disorder of urea cycle disorders, accounting for nearly 50% of all cases. We report a case of a two-month- old male patient, who attends our medical genetics consultation because of low citrulline levels and elevated glutamine to citrulline ratio detected by expanded newborn screening with tandem mass spectrometry. He is an asymptomatic male with a normal physical examination and appropriate neurodevelopmental milestones. The patient has a family history of one older brother who died at 18 months old from severe and sudden hyperammonemia and a maternal aunt who suddenly died at two years old...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28255477/a-newborn-with-panhypopituitarism-and-seizures
#19
Trupti Kale, Rachit Patil, Ramesh Pandit
Interstitial deletions on the short arm of chromosome 20 are uncommon, and therefore the clinical phenotype is poorly defined. Very few cases have been reported in the literature so far. In this report, we describe a 4-month-old female with a heterozygous deletion at 20p11.21p12.1 with panhypopituitarism and cardiac, gastrointestinal, and genitourinary anomalies along with dysmorphic facial features. We compared and discussed similar cases with overlapping deletions in 20p11 region. We wish to report this rare occurrence as this may better define the phenotypes of the 20p interstitial deletion with certain dysmorphic features, multiorgan involvement, and related clinical characteristics in this patient population...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28203467/costello-syndrome-and-umbilical-ligament-rhabdomyosarcoma-in-two-pediatric-patients-case-reports-and-review-of-the-literature
#20
Carlos Sánchez-Montenegro, Alejandra Vilanova-Sánchez, Saturnino Barrena-Delfa, Jair Tenorio, Fernando Santos-Simarro, Sixto García-Miñaur, Pablo Lapunzina, Leopoldo Martínez-Martínez
Costello syndrome is caused by heterozygous de novo missense mutations in the protooncogene HRAS with tumor predisposition, especially rhabdomyosarcoma. We here report two pediatric patients with Costello syndrome and umbilical ligament rhabdomyosarcoma. A review of the literature published in English in MEDLINE from January 1971 to June 2016 using the search terms "Costello syndrome" and "rhabdomyosarcoma" was performed, including two new cases that we describe. Twenty-six patients with Costello syndrome and rhabdomyosarcoma were recorded with mean age of diagnosis of 2 years and 8 months...
2017: Case Reports in Genetics
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