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https://www.readbyqxmd.com/read/28550758/platelets-and-hemophilia-a-review-of-the-literature
#1
REVIEW
Julia Riedl, Cihan Ay, Ingrid Pabinger
Hemophilia A and B are inherited bleeding disorders due to deficiencies of the clotting factors VIII and IX, respectively. The severity of the disease correlates with remaining factor levels, although individual differences in bleeding tendency are seen despite similar factor levels. While thrombin generation is severely impaired in persons with hemophilia, primary hemostasis, i.e. platelet function, has been generally considered to be normal. However, some studies reported prolonged bleeding times in hemophilia, suggesting that also primary hemostasis is affected...
May 13, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28550373/black-carp-vasa-identifies-embryonic-and-gonadal-germ-cells
#2
Ting Xue, Miao Yu, Qihua Pan, Yizhou Wang, Jian Fang, Lingyu Li, Yu Deng, Kai Chen, Qian Wang, Tiansheng Chen
Identification of molecular markers is an essential step in the study of germ cells. Vasa is an RNA helicase and a well-known germ cell marker that plays a crucial role in germ cell development. Here, we identified the Vasa homolog termed Mpvasa as the first germ cell marker in black carp (Mylopharyngodon piceus). First, a 2819-bp full-length Mpvasa complementary DNA (cDNA) was cloned by PCR using degenerated primers of conserved sequences and gene-specific primers. The Mpvasa cDNA sequence encodes a 637-amino acid protein that contains eight conserved characteristic motifs of the DEAD box protein family, and shares high identity to grass carp (81%) and zebrafish (74%) vasa homologs...
May 26, 2017: Development Genes and Evolution
https://www.readbyqxmd.com/read/28550290/differential-methylation-is-associated-with-non-syndromic-cleft-lip-and-palate-and-contributes-to-penetrance-effects
#3
Lucas Alvizi, Xiayi Ke, Luciano Abreu Brito, Rimante Seselgyte, Gudrun E Moore, Philip Stanier, Maria Rita Passos-Bueno
Non-syndromic cleft lip and/or palate (NSCLP) is a common congenital malformation with a multifactorial model of inheritance. Although several at-risk alleles have been identified, they do not completely explain the high heritability. We postulate that epigenetic factors as DNA methylation might contribute to this missing heritability. Using a Methylome-wide association study in a Brazilian cohort (67 NSCLP, 59 controls), we found 578 methylation variable positions (MVPs) that were significantly associated with NSCLP...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28550254/precuneus-failures-in-subjects-of-the-psen1-e280a-family-at-risk-of-developing-alzheimer-s-disease-detected-using-quantitative-electroencephalography
#4
John Fredy Ochoa, Joan Francesc Alonso, Jon Edinson Duque, Carlos Andrés Tobón, Ana Baena, Francisco Lopera, Miguel Angel Mañanas, Alher Mauricio Hernández
BACKGROUND: Presenilin-1 (PSEN1) mutations are the most common cause of familial early onset Alzheimer's disease (AD). The PSEN1 E280A (E280A) mutation has an autosomal dominant inheritance and is involved in the production of amyloid-β. The largest family group of carriers with E280A mutation is found in Antioquia, Colombia. The study of mutation carriers provides a unique opportunity to identify brain changes in stages previous to AD. Electroencephalography (EEG) is a low cost and minimally invasiveness technique that enables the following of brain changes in AD...
May 26, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28550247/two-novel-mutations-in-the-first-transmembrane-domain-of-presenilin1-cause-young-onset-alzheimer-s-disease
#5
Collin Y Liu, Yu Ohki, Taisuke Tomita, Satoko Osawa, Bruce R Reed, William Jagust, Victoria Van Berlo, Lee-Way Jin, Helena C Chui, Giovanni Coppola, John M Ringman
BACKGROUND: The presenilin-1 protein (PS1) is the catalytic unit of γ-secretase implicated in the production of abnormally long forms of amyloid-β (Aβ), including Aβ42, proteins thought critical in the pathogenesis of Alzheimer's disease (AD). In AD of autosomal dominant inheritance, the majority of pathogenic mutations have been found in the PSEN1 gene within which the location of the mutation can provide clues as to the mechanism of pathogenesis. OBJECTIVE: To describe clinical features of two novel mutations in the transmembrane portion 1 (TMD-1) of PSEN1 as well as biochemical features in one and neuropathological findings in the other...
May 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28550168/reduced-expression-of-foxp1-as-a-contributing-factor-in-huntington-s-disease
#6
Anto Sam Crosslee Louis Sam Titus, Tanzeen Yusuff, Marlène Cassar, Elizabeth Thomas, Doris Kretzschmar, Santosh R D'Mello
Huntington's disease (HD) is an inherited neurodegenerative disease caused by a polyglutamine expansion in the huntington protein (htt). The neuropathological hallmark of HD is the loss of neurons in the striatum and, to a lesser extent, in the cortex. Foxp1 is a member of the Forkhead family of transcription factors expressed selectively in the striatum and the cortex. In the brain, three major Foxp1 isoforms are expressed - isoform-A (∼90 kDa), isoform-D (∼70 kDa) and isoform-C (∼50 kDa). We find that expression of Foxp1 isoforms A and D is selectively reduced in the striatum and cortex of R6/2 HD mice as well as in the striatum of HD patients...
May 26, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28549842/mitochondrial-dysfunction-and-oxidative-stress-in-corneal-disease
#7
Neeru A Vallabh, Vito Romano, Colin E Willoughby
The cornea is the anterior transparent surface and the main refracting structure of the eye. Mitochondrial dysfunction and oxidative stress are implicated in the pathogenesis of inherited (e.g. Kearns Sayre Syndrome) and acquired corneal diseases (e.g. keratoconus and Fuchs endothelial corneal dystrophy). Both antioxidants and reactive oxygen species are found in the healthy cornea. There is increasing evidence of imbalance in the oxidative balance and mitochondrial function in the cornea in disease states...
May 23, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28549550/forensic-efficiency-parameters-of-the-investigator-argus-x-12-kit-in-women-from-two-mestizo-and-seven-amerindian-populations-from-mexico
#8
I Cortés-Trujillo, B Ramos-González, O Salas-Salas, F Zuñiga-Chiquette, A Zetina Hernández, G Martínez-Cortés, M Ruiz-Hernández, A González-Martín, J F Ferragut, H Rangel-Villalobos
Allele frequency distribution and statistical parameters of forensic efficiency concerning the Investigator Argus X-12 kit (Qiagen, Hilden, Germany) were determined in a total sample of 641 unrelated Mexican females, including two Mestizo-admixed- populations (n=309) and seven Amerindian groups (n=332) from the main regions of the country. Most of the 12 X-STRs were in agreement with Hardy-Weinberg expectations in all nine Mexican populations. The power of discrimination in females (PD) and Median exclusion chance for trios (MECT) and duos (MECD) of this genetic system based on X-STRs were >99...
May 2017: Legal Medicine
https://www.readbyqxmd.com/read/28549500/greater-preclinical-atherosclerosis-in-treated-monogenic-familial-hypercholesterolemia-vs-polygenic-hypercholesterolemia
#9
Mahtab Sharifi, Elizabeth Higginson, Sven Bos, Angela Gallivan, Darren Harvey, Ka Wah Li, Amali Abeysekera, Angela Haddon, Helen Ashby, Kate E Shipman, Jackie A Cooper, Marta Futema, Jeanine E Roeters van Lennep, Eric J G Sijbrands, Mourad Labib, Devaki Nair, Steve E Humphries
BACKGROUND AND AIMS: Familial hypercholesterolemia (FH) is a common inherited disorder of low density lipoprotein-cholesterol (LDL-C) metabolism. It is associated with higher risk of premature coronary heart disease. Around 60% of patients with a clinical diagnosis of FH do not have a detectable mutation in the genes causing FH and are most likely to have a polygenic cause for their raised LDL-C. We assessed the degree of preclinical atherosclerosis in treated patients with monogenic FH versus polygenic hypercholesterolemia...
May 13, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28548905/brca-associated-cancers-role-of-imaging-in-screening-diagnosis-and-management
#10
Michelle V Lee, Venkata S Katabathina, Michyla L Bowerson, Marina I Mityul, Anup S Shetty, Khaled M Elsayes, Aparna Balachandran, Priya R Bhosale, Ann E McCullough, Christine O Menias
Harmful mutations of the BRCA tumor suppressor genes result in a greater lifetime risk for malignancy-breast and ovarian cancers in particular. An increased risk for male breast, fallopian tube, primary peritoneal, pancreatic, prostate, and colon cancers also has been reported. The BRCA gene is inherited in an autosomal dominant pattern and tends to be highly penetrant; thus, there is an increased incidence of these cancers in affected families. Compared with sporadic tumors, BRCA-associated malignancies have unique manifestations, clinical features, and pathologic profiles...
May 26, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28548297/dysregulation-of-the-causative-genes-for-hereditary-parkinsonism-in-the-midbrain-in-parkinson-s-disease
#11
Yun Joong Kim, Junbeom Jeon, Jaemoon Shin, Nan Young Kim, Jeong Hoon Hong, Jae-Min Oh, SangKyoon Hong, Yeo Jin Kim, Young-Eun Kim, Suk Yun Kang, Hyeo-Il Ma, Unjoo Lee, Jeehee Yoon
BACKGROUND AND OBJECTIVES: Many hereditary movement disorders with complex phenotypes without a locus symbol prefix for familial PD present as parkinsonism; however, the dysregulation of genes associated with these phenotypes in the SNpc of PD patients has not been systematically studied. METHODS: Gene set enrichment analyses were performed using 10 previously published genome-wide expression datasets obtained by laser-captured microdissection of pigmented neurons in the SNpc...
May 26, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28547076/purinergic-signaling-during-intestinal-inflammation
#12
REVIEW
Maria Serena Longhi, Alan Moss, Zhenghui Gordon Jiang, Simon C Robson
Inflammatory bowel disease (IBD) is a devastating disease that is associated with excessive inflammation in the intestinal tract in genetically susceptible individuals and potentially triggered by microbial dysbiosis. This illness markedly predisposes patients to thrombophilia and chronic debility as well as bowel, lymphatic, and liver cancers. Development of new therapies is needed to re-establish long-term immune tolerance in IBD patients without increasing the risk of opportunistic infections and cancer...
May 26, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28546998/uniparental-disomy-determined-by-whole-exome-sequencing-in-a-spectrum-of-rare-motoneuron-diseases-and-ataxias
#13
Dana M Bis, Rebecca Schüle, Jennifer Reichbauer, Matthis Synofzik, Tim W Rattay, Anne Soehn, Peter de Jonghe, Ludger Schöls, Stephan Züchner
BACKGROUND: The genetic causes of many rare inherited motoneuron diseases and ataxias (MND and ATX) remain largely unresolved, especially for sporadic patients, despite tremendous advances in gene discovery. Whole exome data is often available for patients, but it is rarely evaluated for unusual inheritance patterns, such as uniparental disomy (UPD). UPD is the inheritance of two copies of a chromosomal region from one parent, which may generate homozygosity for a deleterious recessive variant from only one carrier-parent...
May 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/28546865/parkinson-disease-in-gaucher-disease
#14
Federico Rodriguez-Porcel, Alberto J Espay, Miryam Carecchio
BACKGROUND: Gaucher disease (GD) is an inborn error of metabolism caused by mutations in the gene (GBA) coding for glucocerebrosidase (GCase), inherited in an autosomal recessive pattern. GD patients have up to 9% risk of developing PD. CASE PRESENTATION: We report two patients with GD that developed PD at different disease stages. CONCLUSION: We reviewed the literature on the coexistence of PD and GD and speculate that the severity of symptoms may be related to the type of GBA mutation inherited...
2017: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/28546766/abcb1-genetic-variants-in-leukemias-current-insights-into-treatment-outcomes
#15
REVIEW
Ravindran Ankathil
Despite improvements in treatment of different types of leukemia, not all patients respond optimally for a particular treatment. Some treatments will work better for some, while being harmful or ineffective for others. This is due to genetic variation in the form of single-nucleotide polymorphisms (SNPs) that affect gene expression or function and cause inherited interindividual differences in the metabolism and disposition of drugs. Drug transporters are one of the determinants governing the pharmacokinetic profile of chemotherapeutic drugs...
2017: Pharmacogenomics and Personalized Medicine
https://www.readbyqxmd.com/read/28546758/distinct-implications-of-different-brca-mutations-efficacy-of-cytotoxic-chemotherapy-parp-inhibition-and-clinical-outcome-in-ovarian-cancer
#16
REVIEW
Robert L Hollis, Michael Churchman, Charlie Gourley
Approximately a fifth of ovarian carcinoma (OC) is associated with inherited germline mutations, most commonly in the DNA repair genes BRCA1 or BRCA2 (BRCA). BRCA1- and BRCA2-associated OCs have historically been described as a single subgroup of OC that displays a distinct set of characteristics termed the "BRCAness" phenotype. The hallmarks of this phenotype are superior clinical outcome and hypersensitivity to platinum-based chemotherapy and poly-(ADP-ribose) polymerase (PARP) inhibitors. However, growing evidence suggests that BRCA1- and BRCA2-associated OCs display distinct characteristics, most notably in long-term patient survival...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28546713/current-concepts-of-epigenetics-in-testicular-cancer
#17
REVIEW
Alfredo Harb-De la Rosa, Meenakkshy Manoharan, Ahmed Saeed Goolam
Testicular germ cell tumors (GCTs) are characterized into seminomas (SGCTs) and non-seminomatous testicular germ cell tumors (NSGCTs). Serum tumor markers (STMs) play an important role in testicular cancer as they provide useful information for diagnosis, staging, and detection of recurrence. Nonetheless, additional tumor markers for early diagnosis and therapeutic options are required to enhance specificity of serological diagnosis of testes cancers. Epigenetics is defined as inherited changes in gene expression that are not encoded in the DNA structure...
June 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28546575/of-giraffes-necks-and-the-inheritance-of-chromatin-states
#18
Vincenzo Pirrotta
New work reports that both derepressed and hyper-repressed chromatin states in animals can be transmitted to progeny for many generations. Transmission depends on genomic architecture and histone modifications.
May 26, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28546535/a-novel-prkag2-mutation-in-a-chinese-family-with-cardiac-hypertrophy-and-ventricular-pre-excitation
#19
Kun-Qi Yang, Chao-Xia Lu, Ying Zhang, Yan-Kun Yang, Jia-Cheng Li, Tian Lan, Xu Meng, Peng Fan, Tao Tian, Lin-Ping Wang, Ya-Xin Liu, Xue Zhang, Xian-Liang Zhou
PRKAG2 syndrome is a rare autosomal dominant inherited disorder that is characterized by cardiac hypertrophy, ventricular pre-excitation and conduction system abnormalities. There is little knowledge in cardiovascular magnetic resonance (CMR) characteristics of PRKAG2 cardiomyopathy. This study investigated the genetic defect in a three-generation Chinese family with cardiac hypertrophy and ventricular pre-excitation using whole-exome sequencing. A novel missense mutation, c.1006 G > T (p.V336L), was identified in PRKAG2...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28545977/elevated-glutaric-acid-levels-in-dhtkd1-gcdh-double-knockout-mice-challenge-our-current-understanding-of-lysine-metabolism
#20
Caroline Biagosch, RagaDeepthi Ediga, Svenja-Viola Hensler, Michael Faerberboeck, Ralf Kuehn, Wolfgang Wurst, Thomas Meitinger, Stefan Kölker, Sven Sauer, Holger Prokisch
Glutaric aciduria type I (GA-I) is a rare organic aciduria caused by the autosomal recessive inherited deficiency of glutaryl-CoA dehydrogenase (GCDH). GCDH deficiency leads to disruption of L-lysine degradation with characteristic accumulation of glutarylcarnitine and neurotoxic glutaric acid (GA), glutaryl-CoA, 3-hydroxyglutaric acid (3-OHGA). DHTKD1 acts upstream of GCDH, and its deficiency leads to none or often mild clinical phenotype in humans, 2-aminoadipic 2-oxoadipic aciduria. We hypothesized that inhibition of DHTKD1 may prevent the accumulation of neurotoxic dicarboxylic metabolites suggesting DHTKD1 inhibition as a possible treatment strategy for GA-I...
May 22, 2017: Biochimica et Biophysica Acta
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