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PubMed Journals Articles About "Uptake Genetic Testing Children Lynch Syndrome Variant Carriers" RSS

08:35 EDT 19th September 2018 | BioPortfolio

Uptake Genetic Testing Children Lynch Syndrome Variant Carriers PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Uptake Genetic Testing Children Lynch Syndrome Variant Carriers articles that have been published worldwide.

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Showing "Uptake genetic testing children Lynch syndrome variant carriers" PubMed Articles 1–25 of 24,000+

The uptake of presymptomatic genetic testing in hereditary breast-ovarian cancer and Lynch syndrome: a systematic review of the literature and implications for clinical practice.

Following the identification in a proband of a germline BRCA1/BRCA2 mutation in hereditary breast-ovarian cancer (HBOC) or a DNA mismatch repair gene mutation in Lynch syndrome (LS) he or she will be asked to inform at-risk family members about the option for presymptomatic DNA testing. However, in clinical practice multiple factors may complicate the process of information sharing. We critically evaluated studies on the uptake of presymptomatic genetic testing in both syndromes. A search of relevant MeSH t...


Worldwide Practice Patterns in Lynch Syndrome Diagnosis and Management, Based on Data From the International Mismatch Repair Consortium.

Families with a history of Lynch syndrome often do not adhere to guidelines for genetic testing and screening. We investigated practice patterns related to Lynch syndrome worldwide, to ascertain potential targets for research and public policy efforts METHODS: We collected data from the International Mismatch Repair Consortium [IMRC], which comprises major research and clinical groups engaged in the care of families with Lynch syndrome worldwide. IMRC institutions were invited to complete a questionnaire to...

Low Referral Rate for Genetic Testing in Racially and Ethnically Diverse Patients Despite Universal Colorectal Cancer Screening.

Guidelines recommend that all colorectal tumors be assessed for mismatch repair deficiency, which could increase identification of patients with Lynch syndrome. This is of particular importance for minority populations, in whom hereditary syndromes are under diagnosed. We compared rates and outcomes of testing all tumor samples (universal testing) collected from a racially and ethnically diverse population for features of Lynch syndrome.


DNA mismatch repair protein deficient non-neoplastic colonic crypts: a novel indicator of Lynch syndrome.

Lynch syndrome is the most common form of hereditary colorectal carcinoma. However, establishing the diagnosis of Lynch syndrome is challenging, and ancillary studies that distinguish between sporadic DNA mismatch repair (MMR) protein deficiency and Lynch syndrome are needed, particularly when germline mutation studies are inconclusive. The aim of this study was to determine if MMR protein-deficient non-neoplastic intestinal crypts can help distinguish between patients with and without Lynch syndrome. We ev...

Genetic Testing for Cardiomyopathies in Clinical Practice.

Cardiac genetic testing for inherited cardiomyopathies has become a routine aspect of care. Advances in genetic testing technologies have made testing more comprehensive and affordable. With this increase come greater understanding of the genetic basis of these diseases, but also shines a light on the challenges. Ability to ascertain whether a rare variant is causative of disease is problematic. A genetic diagnosis in a family can offer an invaluable tool for cascade genetic testing of at-risk relatives and...

Homozygosity for the c.428delG variant in in a healthy individual: implications for molecular testing in patients with Joubert syndrome.

Joubert syndrome (JBTS) is a rare neurodevelopmental disorder with marked phenotypic variability and genetic heterogeneity. Homozygous or compound heterozygous mutations in the gene on chromosome 14q23 are known to be associated with JBTS-23. The frameshift variant c.428delG is the most frequent variant reported in JBTS-23; yet, homozygosity of this variant was observed in two patients with JBTS-23. However, homozygosity of the c.428delG variant was recently reported as well in one healthy individual.

Missed opportunities: Genetic counseling and testing among an ethnically diverse cohort of women with endometrial cancer.

Lynch syndrome (LS) accounts for the majority of inherited endometrial cancers (EC), and the identification of probands presents a unique opportunity to treat and prevent multiple cancers. The diagnosis of EC can provide the indication for women with specific risk factors to undergo genetic testing (GT). We sought to evaluate genetic counseling referrals (GCR) and subsequent GT rates in an ethnically diverse group of high-risk women.

Lynch Syndrome: Genomics Update and Imaging Review.

Lynch syndrome is the most common hereditary cancer syndrome, the most common cause of heritable colorectal cancer, and the only known heritable cause of endometrial cancer. Other cancers associated with Lynch syndrome include cancers of the ovary, stomach, urothelial tract, and small bowel, and less frequently, cancers of the brain, biliary tract, pancreas, and prostate. The oncogenic tendency of Lynch syndrome stems from a set of genomic alterations of mismatch repair proteins. Defunct mismatch repair pro...

Lynch Syndrome and Muir-Torre Syndrome: An update and review on the genetics, epidemiology, and management of two related disorders.

Hereditary Nonpolyposis Colorectal Cancer (HNPCC), also known as Lynch Syndrome, is an autosomal dominant, tumor predisposing disorder usuallycaused by germline mutations in mismatch repair (MMR) genes. A subset of HNPCC, Muir-Torre Syndrome (MTS) also involves MMR gene defects and is generally accepted as a variant of HNPCC. MTS is typicallycharacterized by at least one visceral malignancy and one cutaneous neoplasm of sebaceous differentiation, with or without keratoacanthomas. In either version of the di...

Routine molecular analysis for Lynch syndrome among adenomas or colorectal cancer within a national screening program.

It is important to identify individuals with Lynch syndrome because surveillance programs can reduce their morbidity and mortality from colorectal cancer (CRC). We assessed the diagnostic yield of immunohistochemistry to detect Lynch syndrome in patients with advanced and multiple adenomas within our national CRC screening program.

Molecular subtype classification of urothelial carcinoma in Lynch syndrome.

Lynch syndrome confers an increased risk for urothelial carcinoma (UC). Molecular subtypes may be relevant to prognosis and therapeutic possibilities, but have to date not been defined in Lynch syndrome-associated urothelial cancer. We aimed to provide a molecular description of Lynch syndrome-associated UC. Thus, Lynch syndrome-associated UC of the upper urinary tract and the urinary bladder were identified in the Danish hereditary non-polyposis colorectal cancer (HNPCC) register and were transcriptionally...

Uptake of Preimplantation Genetic Diagnosis in Female BRCA1 and BRCA2 Mutation Carriers.

Women with a germline pathogenic variant in the BReast CAncer susceptibility genes (BRCA1 or BRCA2) have an increased risk of early-onset breast and ovarian cancer. In addition to weighing cancer screening and risk-reduction options, healthy BRCA mutation carriers of childbearing age may choose to preclude passing the mutation to the next generation. In the current study, we report on preimplantation genetic diagnosis (PGD) practices in BRCA-positive Israeli women who were offered PGD at no cost.

A Commentary on Commercial Genetic Testing and the Future of the Genetic Counseling Profession.

Commercial genetic testing laboratories are increasingly employing genetic counselors. As a result, the role of these or many genetic counselors is shifting from primarily direct patient counseling in clinics and hospitals to more laboratory-centered activities that involve case coordination, customer liaison, variant classification, marketing, and sales. Given the importance of these commercial entities to the genetic counseling profession, this commentary examines the current financial situation of four ...

Assessment of Tumor Sequencing as a Replacement for Lynch Syndrome Screening and Current Molecular Tests for Patients With Colorectal Cancer.

Universal tumor screening for Lynch syndrome (LS) in colorectal cancer (CRC) is recommended and involves up to 6 sequential tests. Somatic gene testing is performed on stage IV CRCs for treatment determination. The diagnostic workup for patients with CRC could be simplified and improved using a single up-front tumor next-generation sequencing test if it has higher sensitivity and specificity than the current screening protocol.

The Influence of Adolescence on Parents' Perspectives of Testing and Discussing Inherited Cancer Predisposition.

Li-Fraumeni syndrome (LFS) is a highly penetrant cancer predisposition syndrome that may present with a first cancer before or during adolescence/young adulthood. Families offered LFS genetic testing for their children can inform our understanding of how the unique developmental context of adolescence influences parental perspectives about genetic testing and discussions of cancer risk. In this study, semi-structured interviews were conducted with 46 parents of children at risk for LFS to capture those pers...

Tumor development in Japanese patients with Lynch syndrome.

Lynch syndrome (LS) patients have a high risk of developing various tumors. This study aimed to clarify the characteristics of tumors developing in LS patients.

Amino acid-level signal-to-noise analysis of incidentally identified variants in genes associated with long QT syndrome during pediatric whole exome sequencing reflects background genetic noise.

Due to rapid expansion of clinical genetic testing, an increasing number of genetic variants of undetermined significance are being identified in children with unclear diagnostic value. Variants found in genes associated with heritable channelopathies, such as long QT syndrome (LQTS), are particularly difficult to interpret given the risk of sudden cardiac death associated with pathologic mutations.

A Unique Genomic Variant of HDR Syndrome in Newborn.

HDR syndrome (also known as Barakat syndrome) is a rare genetic disorder due to deletions/mutations on specific regions of zinc-finger transcription factor (GATA3) gene.

Lynch syndrome - Muir-Torre variant: implication in gynecologic oncology.

Attitudes Toward and Uptake of Prenatal Genetic Screening and Testing in Twin Pregnancies.

The rate of twinning is rising and since the introduction of non-invasive prenatal testing, interest in and uptake of genetic screening and testing in twin pregnancies has not been investigated. This study aimed to explore the attitudes toward and uptake of current prenatal genetic screening and diagnostic testing options for fetal aneuploidy in twin pregnancies. Women being seen for genetic counseling with twin gestations were recruited for participation in a descriptive study with questionnaire (n = 4...

Molecular Background of Colorectal Tumors From Patients with Lynch Syndrome Associated With Germline Variants in PMS2.

Germline variants in the mismatch repair genes MLH1, MSH2 (EPCAM), MSH6, or PMS2 cause Lynch syndrome. Patients with these variants have an increased risk of developing colorectal cancers (CRCs) that differ from sporadic CRCs in genetic and histologic features. It has been a challenge to study CRCs associated with PMS2 variants (PMS2-associated CRCs) because these develop less frequently and in patients of older ages than colorectal tumors with variants in the other mismatch repair genes.

Oxygen uptake efficiency slope during exercise in adults with Down syndrome.

Persons with Down syndrome (DS) have low aerobic exercise capacity. The present authors sought to compare the oxygen uptake efficiency slope (OUES) between adults with and without DS performing graded exercise testing (GXT) and to investigate its relationship with peak oxygen uptake (VO) in both groups of participants.

Medical Devices; Hematology and Pathology Devices; Classification of Lynch Syndrome Test Systems. Final order.

The Food and Drug Administration (FDA or we) is classifying Lynch syndrome test systems into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the Lynch syndrome test systems' classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this ...

Colorectal cancer surveillance in Portuguese families with lynch syndrome: a cohort study.

Lynch syndrome (LS) is associated with a high risk of colorectal cancer (CRC). The aim of this study was to assess the cumulative risk for the development of colorectal adenomas or carcinomas in a LS CRC surveillance program and to audit the quality of the endoscopic procedures.

Possible Congenital Zika Syndrome in Older Children Due to Earlier Circulation of Zika Virus.

Congenital Zika syndrome (CZS) was identified following a large Zika virus (ZIKV) outbreak in Brazil in 2015. Two children with clinical presentations consistent with CZS, ages 7 and 8 years old, are described. Both mothers lived in Cambodia, a region with known ZIKV, during their pregnancies and reported fever and rash in the second trimester. The infants were born with severe microcephaly. Testing for congenital infection at birth and genetic testing were unremarkable. In 2017, serologic testing for both ...


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