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BMC Medical Genetics

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https://www.readbyqxmd.com/read/30241514/muscle-specific-regulation-of-right-ventricular-transcriptional-responses-to-chronic-hypoxia-induced-hypertrophy-by-the-muscle-ring-finger-1-murf1-ubiquitin-ligase-in-mice
#1
Robert H Oakley, Matthew J Campen, Michael L Paffett, Xin Chen, Zhongjing Wang, Traci L Parry, Carolyn Hillhouse, John A Cidlowski, Monte S Willis
BACKGROUND: We recently identified a role for the muscle-specific ubiquitin ligase MuRF1 in right-sided heart failure secondary to pulmonary hypertension induced by chronic hypoxia (CH). MuRF1-/- mice exposed to CH are resistant to right ventricular (RV) dysfunction whereas MuRF1 Tg + mice exhibit impaired function indicative of heart failure. The present study was undertaken to understand the underlying transcriptional alterations in the RV of MuRF1-/- and MuRF1 Tg + mice. METHODS: Microarray analysis was performed on RNA isolated from the RV of MuRF1-/-, MuRF1 Tg+, and wild-type control mice exposed to CH...
September 21, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30241506/the-estrogen-receptor-1-gene-affects-bone-mineral-density-and-osteoporosis-treatment-efficiency-in-slovak-postmenopausal-women
#2
Vladimira Mondockova, Maria Adamkovicova, Martina Lukacova, Birgit Grosskopf, Ramona Babosova, Drahomir Galbavy, Monika Martiniakova, Radoslav Omelka
BACKGROUND: The study investigated the associations of rs9340799:A > G (XbaI) and rs2234693:T > C (PvuII) polymorphisms in the estrogen receptor 1 gene (ESR1) with femoral neck (BMD-FN) and lumbar spine bone mineral density (BMD-LS), biochemical markers of bone turnover, calcium and phosphate levels, fracture prevalence, and a response to two types of anti-osteoporotic therapy in postmenopausal women from southern Slovakia. METHODS: We analysed 343 postmenopausal Slovak women (62...
September 21, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30236073/identification-of-a-novel-tsc2-c-3610g-a-p-g1204r-mutation-contribute-to-aberrant-splicing-in-a-patient-with-classical-tuberous-sclerosis-complex-a-case-report
#3
Ruixiao Zhang, Jianhong Wang, Qing Wang, Yue Han, Xuejun Liu, Irene Bottillo, Yanhua Lang, Leping Shao
BACKGROUND: Tuberous sclerosis complex (TSC) is an autosomal dominant disorder characterized by hamartomas in any organ systems. Mutations in the TSC1 or TSC2 gene lead to the dysfunction of hamartin or tuberin proteins, which cause tuberous sclerosis complex. CASE PRESENTATION: We describe the clinical characteristics of patients from a Chinese family with tuberous sclerosis complex and analyze the functional consequences of their causal genetic mutations. A novel heterozygous mutation (c...
September 20, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30223781/correlation-between-ctla-4-and-cd40-gene-polymorphisms-and-their-interaction-in-graves-disease-in-a-chinese-han-population
#4
Xiaoming Chen, Zhuoqing Hu, Meilian Liu, Huaqian Li, Chanbo Liang, Wei Li, Liwen Bao, Manyang Chen, Ge Wu
BACKGROUND: Single-nucleotide polymorphism (SNP) haplotype and SNP-SNP interactions of CTLA-4 and CD40 genes, with susceptibility to Graves' disease (GD), were explored in a Chinese Han population. METHODS: SNP were genotyped by high resolution melting (HRM). Use the method of Pearson χ2 test and Logistic regression for the association between single SNP and Graves' disease. Using the method of χ2 test and Multifactor Dimensionality Reduction (MDR) to analysis the haplotype frequency distribution, the interaction of SNPs respectively...
September 17, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30223778/novel-pnpla2-gene-mutation-in-a-child-causing-neutral-lipid-storage-disease-with-myopathy
#5
Shouyan Zheng, Wei Liao
BACKGROUND: PNPLA2 gene mutations cause neutral lipid storage disease with myopathy (NLSD-M) or cardiomyopathies. The clinical phenotype, blood test results, imaging examination and gene analysis can be used to improve the understanding of NLSD-M, reduce the misdiagnosis rate and prevent physical disability and even premature death. CASE PRESENTATION: We report a Chinese child with NLSD-M presenting with marked asymmetric skeletal myopathy and hypertrophic cardiomyopathy...
September 17, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30219046/first-evidence-of-maternally-inherited-mosaicism-in-tgfbr1-and-subtle-primary-myocardial-changes-in-loeys-dietz-syndrome-a-case-report
#6
Anwar Baban, Monia Magliozzi, Bart Loeys, Rachele Adorisio, Viola Alesi, Aurelio Secinaro, Bernadette Corica, Luca Vricella, Harry C Dietz, Fabrizio Drago, Antonio Novelli, Antonio Amodeo
BACKGROUND: Loeys-Dietz syndrome (LDS) is a rare multisystemic disorder characterized by vascular and skeletal abnormalities, with considerable intra- and interfamilial variability. CASE PRESENTATION: We report the case of an 8-year-old male with clinical features of two distinct genetic disorders, namely LDS, manifesting in the first months by progressive aortic root dilatation, arterial tortuosity, bifid uvula, and inguinal hernias and oculocutaneous albinism (OCA) manifesting by white hair and skin that does not tan, nystagmus, reduced iris pigment with iris translucency, and reduced retinal pigment)...
September 15, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30217189/potential-role-for-nectin-4-in-the-pathogenesis-of-pre-eclampsia-a-molecular-genetic-study
#7
Mayuko Ito, Haruki Nishizawa, Makiko Tsutsumi, Asuka Kato, Yoshiko Sakabe, Yoshiteru Noda, Akiko Ohwaki, Jun Miyazaki, Takema Kato, Kazuya Shiogama, Takao Sekiya, Hiroki Kurahashi, Takuma Fujii
BACKGROUND: Nectins are cell adhesion molecules that play a pivotal role in adherens junctions and tight junctions. Our previous study using whole-genome oligonucleotide microarrays revealed that nectin-4 was upregulated in pre-eclamptic placentas. We investigated the role of nectin-4 in the etiology of pre-eclampsia. METHODS: We investigated the expression of nectin-4 using real-time RT-PCR, western blot and immunostaining. Additionally, we performed matrigel invasion assay and cytotoxicity assay using cells overexpressing the nectin-4...
September 14, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30217188/two-novel-l2hgdh-mutations-identified-in-a-rare-chinese-family-with-l-2-hydroxyglutaric-aciduria
#8
Wei Peng, Xiu-Wei Ma, Xiao Yang, Wan-Qiao Zhang, Lei Yan, Yong-Xia Wang, Xin Liu, Yan Wang, Zhi-Chun Feng
BACKGROUND: L-2-Hydroxyglutaric aciduria (L-2-HGA) is a rare organic aciduria neurometabolic disease that is inherited as an autosomal recessive mode and have a variety of symptoms, such as psychomotor developmental retardation, epilepsy, cerebral symptoms as well as increased concentrations of 2-hydroxyglutarate (2-HG) in the plasma, urine and cerebrospinal fluid. The causative gene of L-2-HGA is L-2-hydroxyglutarate dehydrogenase gene (L2HGDH), which consists of 10 exons. CASE PRESENTATION: We presented a rare patient primary diagnosis of L-2-HGA based on the clinical symptoms, magnetic resonance imaging (MRI), and gas chromatography-mass spectrometry (GC-MS) results...
September 14, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30217184/association-between-gdf5-rs143383-genetic-polymorphism-and-musculoskeletal-degenerative-diseases-susceptibility-a-meta-analysis
#9
Xin Huang, Weiyue Zhang, Zengwu Shao
BACKGROUND: Several studies have assessed the association between GDF5 rs143383 polymorphism and the susceptibility of musculoskeletal degenerative diseases, such as intervertebral disc degeneration (IDD) and osteoarthritis (OA), but the results are inconsistent. The aim of our study was to evaluate the association between them comprehensively. METHODS: A systematical search was conducted on PubMed, Scopus, Web of Science (WOS), Embase, and the Cochrane Library databases updated to April 20, 2018...
September 14, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30217173/notch-polymorphisms-associated-with-sensitivity-of-noise-induced-hearing-loss-among-chinese-textile-factory-workers
#10
Enmin Ding, Jing Liu, Huanxi Shen, Wei Gong, Hengdong Zhang, Haiyan Song, Baoli Zhu
BACKGROUND: Noise induced hearing loss (NIHL) is a polygenic disease involving both genetic and environmental factors, and is one of the most important occupational health hazards worldwide. To date, the influence of Notch1 variants on the risk to develop NIHL has not been illuminated. This study was conducted to explore the effects of Notch1 polymorphisms on individual susceptibility to NIHL. METHODS: A total of 2689 industrial workers from one textile factory in east China were recruited to participate in the current study...
September 14, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30208882/genetically-determined-high-activities-of-the-tnf-alpha-il23-il17-and-nfkb-pathways-were-associated-with-increased-risk-of-ankylosing-spondylitis
#11
Jacob Sode, Steffen Bank, Ulla Vogel, Paal Skytt Andersen, Signe Bek Sørensen, Anders Bo Bojesen, Malene Rohr Andersen, Ivan Brandslund, Ram Benny Dessau, Hans Jürgen Hoffmann, Bente Glintborg, Merete Lund Hetland, Henning Locht, Niels Henrik Heegaard, Vibeke Andersen
BACKGROUND: Ankylosing spondylitis (AS) results from the combined effects of susceptibility genes and environmental factors. Polymorphisms in genes regulating inflammation may explain part of the heritability of AS. METHODS: Using a candidate gene approach in this case-control study, 51 mainly functional single nucleotide polymorphisms (SNPs) in genes regulating inflammation were assessed in 709 patients with AS and 795 controls. Data on the patients with AS were obtained from the DANBIO registry where patients from all of Denmark are monitored in routine care during treatment with conventional and biologic disease modifying anti-rheumatic drugs (bDMARDs)...
September 12, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30208878/gnptab-c-2404c-t-nonsense-mutation-in-a-patient-with-mucolipidosis-iii-alpha-beta-a-case-report
#12
Chi-Chun Ho, Lilian Li-Yan Tsung, Kam-Tim Liu, Wing-Tat Poon
BACKGROUND: Mucolipidosis alpha/beta is an inborn error of metabolism characterized by deficiency of GlcNAc-1-phosphotransferase, in which essential alpha/beta subunits are encoded by the GNPTAB gene. The autosomal recessive condition is due to disruptions of hydrolase mannose 6-phosphate marker generation, defective lysosomal targeting and subsequent intracellular accumulation of non-degraded material. Clinical severity depends on residual GlcNAc-1-phosphotransferase activity, which distinguishes between the milder type III disease and the severe, neonatal onset type II disease...
September 12, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30208859/three-cases-of-multicentric-carpotarsal-osteolysis-syndrome-a-case-series
#13
Peong Gang Park, Kee Hyuck Kim, Hye Sun Hyun, Chan Hee Lee, Jin-Su Park, Jeong Hae Kie, Young Hun Choi, Kyung Chul Moon, Hae Il Cheong
BACKGROUND: Multicentric carpotarsal osteolysis syndrome (MCTO) is characterized by progressive destruction and disappearance of the carpal and tarsal bones associated with nephropathy. MCTO is caused by loss-of-function mutations in the MAF bZIP transcription factor B (MAFB) gene. CASE PRESENTATION: This report describes three unrelated patients with MAFB mutations, including two male and one female patient. Osteolytic lesions in the carpal and tarsal bones were detected at 2 years, 12 years, and 14 months of age, respectively...
September 12, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30208845/hemophagocytic-lymphohistiocytosis-and-congenital-factor-vii-deficiency-a-case-report
#14
Xiong Wang, Ning Tang, Wei Chang, Yanjun Lu, Dengju Li
BACKGROUND: Hemophagocytic lymfohistiocytosis (HLH) is a rare, life-threatening hyperinflammation, characterized by immune system over-activation resulting in hemophagocytosis. HLH could appear as a primary disease caused by mutations of immune-regulatory genes, or develop as a result of viral or bacterial infections, or malignancy. Congenital factor VII (FVII) deficiency is a rare autosomal recessive disorder characterized by prolonged prothrombin time (PT) and low FVII, which may increase bleeding risk...
September 12, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30200890/novel-mutations-in-aldh1a3-associated-with-autosomal-recessive-anophthalmia-microphthalmia-and-review-of-the-literature
#15
Siying Lin, Gaurav V Harlalka, Abdul Hameed, Hadia Moattar Reham, Muhammad Yasin, Noor Muhammad, Saadullah Khan, Emma L Baple, Andrew H Crosby, Shamim Saleha
BACKGROUND: Autosomal recessive anophthalmia and microphthalmia are rare developmental eye defects occurring during early fetal development. Syndromic and non-syndromic forms of anophthalmia and microphthalmia demonstrate extensive genetic and allelic heterogeneity. To date, disease mutations have been identified in 29 causative genes associated with anophthalmia and microphthalmia, with autosomal dominant, autosomal recessive and X-linked inheritance patterns described. Biallelic ALDH1A3 gene variants are the leading genetic causes of autosomal recessive anophthalmia and microphthalmia in countries with frequent parental consanguinity...
September 10, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30200888/first-molecular-study-in-lebanese-patients-with-cockayne-syndrome-and-report-of-a-novel-mutation-in-ercc8-gene
#16
Alain Chebly, Sandra Corbani, Joelle Abou Ghoch, Cybel Mehawej, André Megarbane, Eliane Chouery
BACKGROUND: Cockayne Syndrome (CS) is a rare autosomal recessive disorder characterized by neurological and sensorial impairment, dwarfism, microcephaly and photosensitivity. CS is caused by mutations in ERCC6 (CSB) or ERCC8 (CSA) genes. METHODS: Three patients with CS were referred to the Medical Genetics Unit of Saint Joseph University. Sanger sequencing of both ERCC8 and ERCC6 genes was performed: ERCC8 was tested in all patients while ERCC6 in one of them. RESULTS: Sequencing led to the identification of three homozygous mutations, two in ERCC8 (p...
September 10, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30185149/factor-xiii-polymorphism-and-risk-of-aneurysmal-subarachnoid-haemorrhage-in-a-south-indian-population
#17
Arati Suvatha, M K Sibin, Dhananjaya I Bhat, K V L Narasingarao, Vikas Vazhayil, G K Chetan
BACKGROUND: The rupture of a brain aneurysm causes bleeding in the subarachnoid space and is known as aneurysmal subarachnoid haemorrhage (aSAH). In our study, we evaluated the association of factor XIII polymorphism and the risk of Aneurysmal subarachnoid haemorrhage (aSAH) in South Indian population. METHODS: The study was performed in 200 subjects with aSAH and 205 healthy control subjects. Genotyping of rs5985(c.103G > T (p.Val35Leu)) and rs5982(c.1694C > T (p...
September 5, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30180809/upper-limb-muscle-overgrowth-with-hypoplasia-of-the-index-finger-a-new-over-growth-syndrome-caused-by-the-somatic-pik3ca-mutation-c-3140a-g
#18
Mohammad M Al-Qattan, Ali Hadadi, Abdullah M Al-Thunayan, Ahmed A Eldali, Mohammed A AlBalwi
BACKGROUND: Scientists have previously described an overgrowth syndrome in Saudi patients and named it 'Upper limb muscle overgrowth with hypoplasia of the index finger' syndrome. CASE PRESENTATION: We describe a new case and document that the syndrome is caused by the somatic PIK3CA mutation c.3140A>G, p.His1047Arg. We also recruited one of the previously reported cases and found the same somatic mutation in the affected muscles. A wider classification of 'PIK3CA-related pathology spectrum' is presented which includes cancer, benign skin lesions/tumors, Cowden syndrome, isolated vascular malformations and various overgrowth syndromes...
September 4, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30176854/clinical-and-molecular-characterization-of-pou3f4-mutations-in-multiple-dfnx2-chinese-families
#19
Yu Su, Xue Gao, Sha-Sha Huang, Jing-Ning Mao, Bang-Qing Huang, Jian-Dong Zhao, Dong-Yang Kang, Xin Zhang, Pu Dai
BACKGROUND: Many X-linked non-syndromic hearing loss (HL) cases are caused by various mutations in the POU domain class 3 transcription factor 4 (POU3F4) gene. This study aimed to identify allelic variants of this gene in two Chinese families displaying X-linked inheritance deafness-2 (DFNX2) and one sporadic case with indefinite inheritance pattern. METHODS: Direct DNA sequencing of the POU3F4 gene was performed in these families and in 100 Chinese individuals with normal hearing...
September 4, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/30170566/clinical-diagnosis-of-larsen-syndrome-stickler-syndrome-and-loeys-dietz-syndrome-in-a-19-year-old-male-a-case-report
#20
N Riise, B R Lindberg, M A Kulseth, S O Fredwall, R Lundby, M-E Estensen, L Drolsum, E Merckoll, K Krohg-Sørensen, B Paus
BACKGROUND: Larsen syndrome is a hereditary disorder characterized by osteochondrodysplasia, congenital large-joint dislocations, and craniofacial abnormalities. The autosomal dominant type is caused by mutations in the gene that encodes the connective tissue protein, filamin B (FLNB). Loeys-Dietz syndrome (LDS) is an autosomal dominant connective tissue disorder characterized by arterial aneurysms, dissections and tortuosity, and skeletal, including craniofacial, manifestations. Mutations in five genes involved in the transforming growth factor beta (TGF-β) signaling pathway cause five types of LDS...
August 31, 2018: BMC Medical Genetics
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