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https://www.readbyqxmd.com/read/28931195/hereditary-hemorrhagic-telangiectasia-laser-treatment-of-epistaxis
#1
Gorazd Poje, Marcel Marjanović Kavanagh
Hereditary hemorrhagic telangiectasia (HHT) is a rare, autosomal dominant disorder characterized by recurrent epistaxis, telangiectasias, and multiorgan vascular dysplasia. Various modalities exist for the treatment of HHT-related chronic epistaxis, although no method is preferred over another. The aim of this study was to review the effectiveness of diode laser photocoagulation in the treatment of epistaxis in patients with HHT. The study included 17 patients (7 men, 10 women) treated with diode laser photocoagulation from year 2008 to 2012...
September 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28930842/type-4b-hereditary-hemochromatosis-associated-with-a-novel-mutation-in-the-slc40a1-gene-a-case-report-and-a-review-of-the-literature
#2
Wei Zhang, Tingxia Lv, Jian Huang, Xiaojuan Ou
RATIONALE: Hereditary hemochromatosis can be divided into HFE- and non-HFE-related based on genetic mutations in different genes. HFE-related hemochromatosis is the most common inherited genetic disease in European populations but rare in Asia-pacific region. Recently, non-HFE-related hemochromatosis has been reported in patients from the Asian countries. PATIENT CONCERNS: We report the case of a 48-year-old Chinese Han woman who presented with abnormal liver function, diabetes mellitus, hyperferritinemia, and high transferrin saturation, with severe iron overload in parenchymal cells, Kupffer cells, and periportal fibrosis on liver biopsy...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930807/breadth-of-genetic-testing-selected-by-patients-at-risk-of-hereditary-breast-and-ovarian-cancer
#3
J Brian Szender, Jasmine Kaur, Katherine Clayback, Mollie L Hutton, June Mikkelson, Kunle Odunsi, Cara Dresbold
OBJECTIVE: The aim of this study was to evaluate the ability of patients at risk of hereditary breast and ovarian cancer (HBOC) syndrome to select the extent of genetic testing personally preferred and the impact of demographic factors on the breadth of testing pursued. METHODS: A single-institution cohort was enumerated consisting of patients referred for clinical genetic counseling secondary to risk of HBOC syndrome. This was a retrospective study of consecutive patients seen for genetic counseling; all patients completed an epidemiologic questionnaire and provided personal and family medical histories...
September 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28930516/new-targeted-therapies-and-diagnostic-methods-for-iron-overload-diseases
#4
Annita Kolnagou, Christina N Kontoghiorghe, George John Kontoghiorghes
Millions of people worldwide suffer from iron overload toxicity diseases such as transfusional iron overload in thalassaemia and hereditary haemochromatosis. The accumulation and presence of toxic focal iron deposits causing tissue damage can also be identified in Friedreich's ataxia, Alzheimer's, Parkinson's, renal and other diseases. Different diagnostic criteria of toxicity and therapeutic interventions apply to each disease of excess or misplaced iron. Magnetic resonance imaging relaxation times T2 and T2* for monitoring iron deposits in organs and iron biomarkers such as serum ferritin and transferrin iron saturation have contributed in the elucidation of iron toxicity mechanisms and pathways, and also the evaluation of the efficacy and mode of action of chelating drugs in the treatment of diseases related to iron overload, toxicity and metabolism...
January 1, 2018: Frontiers in Bioscience (Scholar Edition)
https://www.readbyqxmd.com/read/28930148/elongation-of-axon-extension-for-human-ipsc-derived-retinal-ganglion-cells-by-a-nano-imprinted-scaffold
#5
Tien-Chun Yang, Jen-Hua Chuang, Waradee Buddhakosai, Wen-Ju Wu, Chen-Ju Lee, Wun-Syuan Chen, Yi-Ping Yang, Ming-Chia Li, Chi-Hsien Peng, Shih-Jen Chen
Optic neuropathies, such as glaucoma and Leber's hereditary optic neuropathy (LHON) lead to retinal ganglion cell (RGC) loss and therefore motivate the application of transplantation technique into disease therapy. However, it is a challenge to direct the transplanted optic nerve axons to the correct location of the retina. The use of appropriate scaffold can promote the proper axon growth. Recently, biocompatible materials have been integrated into the medical field, such as tissue engineering and reconstruction of damaged tissues or organs...
September 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28929039/platinum-based-chemotherapy-secures-effective-local-control-for-very-advanced-hereditary-triple-negative-breast-cancer-with-life-threatening-bleeding
#6
Arvids Irmejs, Peteris Loza, Elina Skuja, Janis Gardovskis
Here we report the case of a noncompliant 50-year-old female patient with high-grade, triple-negative breast cancer (TNBC) and strong family cancer history. She only agreed to start treatment after being admitted to the hospital with advanced stage disease and severe anaemia resulting from bulky, ulcerated, and actively bleeding tumor. Therapy was promptly started with platinum-based chemotherapy, resulting in extremely rapid clinical remission and complete control of local symptoms. In conclusion, we hypothesise that even a single course of platinum-based chemotherapy could bring under control life-threatening complications in hereditary TNBC and, therefore, it should be administered without hesitation in emergency circumstances if the patient can tolerate one dose of the medication...
July 10, 2017: Curēus
https://www.readbyqxmd.com/read/28928829/braf-v600e-mutation-contributes-papillary-thyroid-carcinoma-and-hashimoto-thyroiditis-with-resistance-to-thyroid-hormone-a-case-report-and-literature-review
#7
Wanjia Xing, Xiaohong Liu, Qingqing He, Zongjing Zhang, Zhaoshun Jiang
Resistance to thyroid hormone (RTH) is a rare autosomal hereditary disorder characterized by increased serum thyroid hormone (TH) levels with unsuppressed or increased thyrotropin concentration. It remains unknown whether the coexistence of RTH with papillary thyroid carcinoma (PTC) and Hashimoto thyroiditis (HT) is incidental or whether it possesses a genetic or pathophysiological association. In the present study, a case of RTH with PTC and HT in an 11-year-old Chinese patient was examined and the clinical presentation of RTH with PTC was discussed...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927739/antithrombotic-use-predicts-recanalization-of-embolized-pulmonary%C3%A2-arteriovenous-malformations-in-hereditary-hemorrhagic%C3%A2-telangiectasia
#8
Jason L Martin, Marie E Faughnan, Vikramaditya Prabhudesai
No abstract text is available yet for this article.
September 15, 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28927462/generation-of-special-autosomal-dominant-polycystic-kidney-disease-ipscs-with-the-capability-of-functional-kidney-like-cell-differentiation
#9
Jiahui Huang, Shumin Zhou, Xin Niu, Bin Hu, Qing Li, Feng Zhang, Xue Zhang, Xiujuan Cai, Yuanlei Lou, Fen Liu, Chenming Xu, Yang Wang
BACKGROUND: Human induced pluripotent stem cells (iPSCs) have been verified as a powerful cell model for the study of pathogenesis in hereditary disease. Autosomal dominant polycystic kidney disease (ADPKD) is caused by mutations of PKD or non-PKD genes. The pathogenesis of ADPKD remains unexplored because of the lack of a true human cell model. METHODS: Six ADPKD patients and four healthy individuals were recruited as donors of somatic cells from a Chinese ADPKD family without mutations of the PKD genes but carrying SAMSN1 gene deletion...
September 19, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28926134/early-genetic-aberrations-in-patients-with-sporadic-colorectal-cancer
#10
Brooke R Druliner, Xiaoyang Ruan, Hugues Sicotte, Daniel O'Brien, Hongfang Liu, Jean-Pierre A Kocher, Lisa Boardman
Chromosome instability (CIN) is widely observed in both sporadic and hereditary colorectal cancer (CRC). Defects in APC and WNT signaling are primarily associated with CIN in hereditary CRC, but the genetic causes for CIN in sporadic CRC remain elusive. Using high-density SNP array and exome data from The Cancer Genome Atlas, we characterized loss of heterozygosity (LOH) and copy number variation (CNV) in the peripheral blood, normal colon and corresponding tumor tissue in 15 CRC patients with proficient mismatch repair (MMR) and 24 CRC patients with deficient MMR...
September 19, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28925492/detection-of-hereditary-hearing-loss-gene-by-dna-microarray
#11
G-Y Han, Z Xu, Q-S Li, H-Y Shen, W Zhang, J Liang
OBJECTIVE: Screening genes in patients suffering clinically sporadic deafness, using DNA microarray, and evaluating the application value of the clinical detection. PATIENTS AND METHODS: DNA extracted from patients' venous blood was amplified by PCR, and hybridization was carried out in a myriad class clean room. Nine mutation sites of four deaf genes commonly seen in Chinese people were tested. RESULTS: Among 24 patients, 7 cases with mutations were detected, with a positive rate of 29...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28925400/the-hif-and-other-quandaries-in-vhl-disease
#12
REVIEW
D Tarade, M Ohh
Mutations in VHL underlie von Hippel-Lindau (VHL) disease, a hereditary cancer syndrome with several subtypes depending on the risk of developing certain combination of classic features, such as clear cell renal cell carcinoma (ccRCC), hemangioblastoma and pheochromocytoma. Although numerous potential substrates and functions of pVHL have been described over the past decade, the best-defined role of pVHL has remained as the negative regulator of the heterodimeric hypoxia-inducible factor (HIF) transcription factor via the oxygen-dependent ubiquitin-mediated degradation of HIF-α subunit...
September 18, 2017: Oncogene
https://www.readbyqxmd.com/read/28925363/generation-of-an-induced-pluripotent-stem-cell-line-from-a-patient-with-hereditary-multiple-endocrine-neoplasia-2b-men2b-syndrome-with-highest-risk-ret-mutation
#13
A Bennaceur-Griscelli, J Hadoux, O Féraud, P Opolon, D Divers, E Gobbo, M Schlumberger, F Griscelli, A G Turhan
Multiple Endocrine Neoplasia Type 2B (MEN2B) is a cancer-predisposing syndrome that affects patients with germline RET mutations. The clinical spectrum of the syndrome includes medullary thyroid carcinoma (MTC) and pheochromocytoma. Currently, there is no satisfactory model recapitulating all the features of the disease especially at the level of stem cells. We generated induced pluripotent stem cells (iPSCs) from a patient with RET mutation at codon 918 who developed pheochromocytoma and MTC. These iPSC had normal karyotype, harboured the RET(M918T) mutation and expressed pluripotency hallmarks...
August 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28923228/randomized-controlled-trials-in-hereditary-cancer-syndromes
#14
REVIEW
Chethan Ramamurthy, Yana Chertock, Michael J Hall
Conducting randomized controlled trials (RCTs) in patients with germline mutations in genes that predispose to adult-onset cancer is hampered by the rarity of these mutations, barriers to their identification, and challenges inherent to randomizing high-risk individuals as part of a clinical trial. Most of the clinically relevant RCTs have been conducted in 3 syndromes in only some of the high-risk genes for which clinical testing is currently available. This article reviews the surgical, screening, and chemoprevention RCTs in each of the syndromes in clinically relevant studies conducted in the past 10 years...
October 2017: Surgical Oncology Clinics of North America
https://www.readbyqxmd.com/read/28922105/hereditary-multiple-exostoses-clinical-molecular-and-radiologic-survey-in-9-families
#15
Karel Medek, Jiří Zeman, Tomáš Honzík, Hana Hansíková, Štěpánka Švecová, Kamila Beránková, Vendula Kučerová Vidrová, Miloslav Kuklík, Jiří Chomiak, Markéta Tesařová
Hereditary multiple exostoses (HME) represents a heterogeneous group of diseases often associated with progressive skeletal deformities. Most frequently, mutations in EXT1 and EXT2 genes with autosomal dominant inheritance are responsible for HME. In our group of 9 families with HME we evaluated the clinical course of the disease and analysed molecular background using Sanger sequencing and MLPA in EXT1 and EXT2 genes. The mean age in our group of patients, when the first exostosis was recognised was 4.5 years (range 2-10 years) and the number of exostoses per one patient documented on X-ray ranged from 2 to 54...
2017: Prague Medical Report
https://www.readbyqxmd.com/read/28921554/dj-1-deficiency-impairs-autophagy-and-reduces-alpha-synuclein-phagocytosis-by-microglia
#16
Yuval Nash, Eran Schmukler, Dorit Trudler, Ronit Pinkas-Kramarski, Dan Frenkel
Parkinson's disease (PD) is a progressive neurodegenerative disorder, of which 1% of the hereditary cases are linked to mutations in DJ-1, an oxidative stress sensor. The pathological hallmark of PD is intercellular inclusions termed Lewy Bodies, composed mainly of α-Synuclein (α-Syn) protein. Recent findings have shown that α-Syn can be transmitted from cell to cell, suggesting an important role of microglia, as the main scavenger cells of the brain, in clearing α-Syn. We previously reported that the knock down (KD) of DJ-1 in microglia increased cells' neurotoxicity to dopaminergic neurons...
September 16, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28920918/mice-deficient-for-erad-machinery-component-sel1l-develop-central-diabetes-insipidus
#17
Daniel G Bichet, Yoann Lussier
Deficiency of the antidiuretic hormone arginine vasopressin (AVP) underlies diabetes insipidus, which is characterized by the excretion of abnormally large volumes of dilute urine and persistent thirst. In this issue of the JCI, Shi et al. report that Sel1L-Hrd1 ER-associated degradation (ERAD) is responsible for the clearance of misfolded pro-arginine vasopressin (proAVP) in the ER. Additionally, mice with Sel1L deficiency, either globally or specifically within AVP-expressing neurons, developed central diabetes insipidus...
September 18, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28920711/rivaroxaban-causes-missed-diagnosis-of-protein-s-deficiency-but-not-of-activated-protein-c-resistance-factor-v-leiden
#18
Elena Maryamchik, Matthew W Rosenbaum, Elizabeth M Van Cott
CONTEXT: - Rivaroxaban causes a false increase in activated protein C resistance (APCR) ratios and protein S activity. OBJECTIVE: - To investigate whether this increase masks a diagnosis of factor V Leiden (FVL) or protein S deficiency in a "real-world" population of patients undergoing rivaroxaban treatment and hypercoagulation testing. DESIGN: - During a 2.5-year period, we compared 4 groups of patients (n = 60): FVL heterozygous (FVL-HET)/taking rivaroxaban, wild-type/taking rivaroxaban, FVL-HET/no rivaroxaban, and normal APCR/no rivaroxaban...
September 18, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28919721/profile-of-sodium-phenylbutyrate-granules-for-the-treatment-of-urea-cycle-disorders-patient-perspectives
#19
REVIEW
Luis Peña-Quintana, Marta Llarena, Desiderio Reyes-Suárez, Luis Aldámiz-Echevarria
Urea-cycle disorders are a group of rare hereditary metabolic diseases characterized by deficiencies of one of the enzymes and transporters involved in the urea cycle, which is necessary for the removal of nitrogen produced from protein breakdown. These hereditary metabolic diseases are characterized by hyperammonemia and life-threatening hyperammonemic crises. Pharmacological treatment of urea-cycle disorders involves alternative nitrogen-scavenging pathways. Sodium benzoate combines with glycine and phenylacetate/phenylbutyrate with glutamine, forming, respectively, hippuric acid and phenylacetylglutamine, which are eliminated in the urine...
2017: Patient Preference and Adherence
https://www.readbyqxmd.com/read/28919163/multiplex-pcr-and-ngs-based-identification-of-mrna-splicing-variants-analysis-of-brca1-splicing-pattern-as-a-model
#20
Jan Hojny, Petra Zemankova, Filip Lhota, Jan Sevcik, Viktor Stranecky, Hana Hartmannova, Katerina Hodanova, Ondrej Mestak, David Pavlista, Marketa Janatova, Jana Soukupova, Michal Vocka, Zdenek Kleibl, Petra Kleiblova
Alternative pre-mRNA splicing increases transcriptome plasticity by forming naturally-occurring alternative splicing variants (ASVs). Alterations of splicing processes, caused by DNA mutations, result in aberrant splicing and the formation of aberrant mRNA isoforms. Analyses of hereditary cancer predisposition genes reveal many DNA variants with unknown clinical significance (VUS) that potentially affect pre-mRNA splicing. Therefore, a comprehensive description of ASVs is an essential prerequisite for the interpretation of germline VUS in high-risk individuals...
September 14, 2017: Gene
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