Tag: Medical genetics

Using NCBI Resources for Genotype-Based Medication Optimization

NCBI offers a variety of clinical genetic resources to help you research, diagnose, and treat diseases and conditions. You can quickly and easily access our data and tools through the Medical Genetics and Human Variation page of the NCBI website.

How and why should you use our resources? Consider the example below.

Your patient is a 58-year-old woman who has been diagnosed with Acute Coronary Syndrome, scheduled for an angioplasty, and she will need to take clopidogrel for at least three months. She mentions that her father died of a stroke while taking the drug and is concerned. You look into pharmacogenetic influences on clopidogrel response and use the results of your patient’s genetic test to determine if a change in the prescription is needed. Continue reading “Using NCBI Resources for Genotype-Based Medication Optimization” →

NCBI at ACMG 2023

Join us March 14-18 in Salt Lake City, Utah

We are excited to celebrate ClinVar’s 10th anniversary and look forward to seeing you in-person at the 2023 ACMG Annual Clinical Genetics Meeting, March 14-18, 2023, in Salt Lake City, Utah. We will participate in a variety of events and activities featuring our clinical and human genetic resources.

Check out NCBI’s schedule:

Continue reading “NCBI at ACMG 2023” →

Connect with NCBI at ASHG 2022

Join us October 25-29 in Los Angeles, CA

We are looking forward to seeing you in-person at the American Society of Human Genetics (ASHG) annual meeting, October 25-29, 2022, in Los Angeles, California.

We will present a variety of talks and posters featuring our clinical and human genetic resources, as well as genome products and tools. We are excited to introduce the NIH Comparative Genomics Resource (CGR), a multi-year National Library of Medicine (NLM) project to maximize the impact of eukaryotic research organisms and their genomic data resources to biomedical research. If you’re interested in providing feedback that will be used to help drive CGR forward, consider joining our round table discussion.

Check out NCBI’s schedule of activities and events:

Continue reading “Connect with NCBI at ASHG 2022” →

Using NCBI resources to research, detect, and treat genetic phenotypes

Clinical Genetics Information at Your Fingertips

NCBI offers a portfolio of medical genetics resources to help you research, diagnose, and treat diseases and conditions. You can easily access our data and tools through the Medical Genetics and Human Variation page of the NCBI website. We also encourage you to join our community of thousands of submitters and share your germline and/or somatic data to advance discovery and optimize clinical care.

How and why should you use our resources? Consider the example below.

Your patient is a 40-year-old mother of two presenting with changes in bathroom habits, bleeding, and belly pain. She has a medical history of colonic polyps. Her family history reveals that her maternal grandmother, mother and uncle had several forms of cancers including colon, breast, and endometrium.

Continue reading “Using NCBI resources to research, detect, and treat genetic phenotypes” →

Ten reasons to submit to ClinVar

Wondering why 2,100 submitters from 83 countries have deposited more than 1.9 million records of their latest variation information in ClinVar? Curious about why genetic counselors, physicians, researchers, and so many others enthusiastically use data for nearly 1.2 million unique variants in ClinVar? Thinking about becoming part of this global community and sharing your knowledge to further science and make an impact on patient health? Well, we thought we should help you along by making the case for why everyone should submit to ClinVar.

#1: Every deposit can help a patient

The healthcare community relies on the standardized view offered by ClinVar variant reports, which include interpretations of clinical significance in relation to Mendelian disease, cancer and pharmacogenetics; an aggregated view of interpretations highlighting those in consensus, conflict or reviewed by expert panel; and detailed views of submitter data, including supporting evidence for the interpretation such as phenotype, assertion criteria and references.

Continue reading “Ten reasons to submit to ClinVar” →

ClinVar’s new XML aggregated by Variation ID

Now it’s easier than ever to access all data in ClinVar for a variant or set of variants across all reported diseases. ClinVar’s new XML is organized by variant only (Variation ID), instead of the variant-disease pair. This reduces redundancy, for example in cases where a variant is related to several disease concepts, and makes the XML consistent with the ClinVar web pages. You can get ClinVarVariationRelease XML from the /xml/clinvar_variation/ directory on the ClinVar FTP site. New features in ClinVarVariationRelease XML shown in Figure 1 include:

Explicit elements to distinguish between variants that were directly interpreted and “included” variants, those that were interpreted only as part of a Haplotype or Genotype. The clinical significance for included variants is indicated as “no interpretation for the single variant”.
Explicit elements to distinguish records for simple allele, haplotypes, and genotypes
The Replaces element that provides a history and indicates accessions that were merged into the current accession.
A section that maps the submitted name or identifier for the interpreted condition to the corresponding name used in ClinVar and the MedGen Concept Identifier (CUI)

ClinVarXML_markup Figure 1. ClinVar variant-centric XML showing a variant record for a haplotype (VCV000236230) that comprises two included variations (SimpleAlleles) that are marked as “no interpretation for the single variant”. The record includes all the condition records (RCVList) with names and identifiers from MedGen, OMIM and other sources.

To learn more about how to use this data, read our documentation.

Tell us how ClinVar has helped you by writing to us at clinvar@ncbi.nlm.nih.gov.

Improved ClinVar search quickly connects you to information about variants

If you’ve been searching in ClinVar, you might have noticed search improvements introduced in December that reliably connect you with information on your variant of interest. ClinVar has broadened its search capability to accept many different ways of expressing the same variation, including variation described on RefSeq transcripts and proteins. If your variant expression is not reported in ClinVar, we alert you to other variants at the same genomic location or link you to related information in other NCBI resources such as dbSNP, LitVar, and PubMed. ClinVar will also now interpret expressions that contain minor errors or warn you about improper syntax that it cannot interpret.

sensor2 Figure 1. Improved search results in Clinvar showing mapping of an HGVS expression to the equivalent variant in ClinVar.

Here are some example queries that show the improved search results.

NM_001318787.1:c.2258G>A – an HGVS expression that is not in ClinVar, but ClinVar has an alternate expression for a variant (Figure 1).

NM_004958.3:c.7365C>A – a variant not in ClinVar, but another variant is at the same genomic location is in ClinVar.

NM_002113.2:c.19delG – a variant is not in ClinVar, but there is additional information for the variant in other databases.

We welcome your feedback on your search experience and any additional ideas on how to improve searching in ClinVar.

Update single records easily with ClinVar’s Single SCV Update

The ClinVar Team is happy to announce a new online form in the ClinVar Submission Portal, the Single SCV Update, which makes it easier for you to update a single record.

ClinVar_SIngle_SCV_2 The new ClinVar Single SCV Update form showing the sections for editing the evaluation date, clinical significance, condition, and citations.

Continue reading “Update single records easily with ClinVar’s Single SCV Update” →

MedGen: Your search engine for human medical genetics

MedGen is a free, comprehensive resource for one-stop access to essential information on phenotypic health topics related to medical genetics as collected from established high-quality sources. It integrates terminology from multiple primary ontologies (or nomenclatures) to facilitate standardization and more accurate results from search queries.

Some things you can do in MedGen:

Continue reading “MedGen: Your search engine for human medical genetics” →