HIGH THROUGHPUT SEQUENCING IN GENETIC DISORDERS

By sequencing all human genes at once (whole exome and whole genome sequencing), genetic testing can be done in the blink of an eye. Based on the clinical information, we can look immediately at the most appropriate gene or panel or go straight to the interpretation of all data. For every clinical case, we have the right solution.

Breda Genetics deploys an articulated portfolio of tests, which comprises four different whole exome sequencing solutions (MENDEL FULL, EXOME 15MB, EXOME 60MB, EXOME 90MB), whole genome sequencing 30x (GENOME FULL), a list of hundreds of fully customizable exome or genome-based multigene panels (EXOME PANEL, GENOME PANEL), and a complete range of other forefront solutions and ancillary services, from exonic/multiexonic algorithmic CNV analysis based on NGS data (EXOME CNV, GENOME CNV), to family segregation studies, MLPA/qPCR and repeat expansion testing (SANGER CARRIER, SANGER GENE, MLPA/qPCR GENE, REPEAT PLUS).

The landscape of clinical genetics worldwide is often marked by widespread difficulty in accessing genetic counselling and genetic testing, either for geographical reasons, limited budgets or absence of equipped facilities. We make a point of giving access to medical genetics services to as many people as possible, offering acceptable turnaround times and fees. If you are unsure on whether you are in need of genetic testing, please request your genetic counseling now.

Recurrent pregnancy loss (RPL): definitions and etiology

Recurrent pregnancy loss (RPL): what is it? Pregnancy loss is the most common adverse event of pregnancy. However, the definition of recurrent pregnancy loss (RPL) is far from unambiguous: the Royal College of Obstetricians and Gynecologists (RCOG) defines RPL as three or more consecutive spontaneous miscarriages (RCOG 2011), while the American Society for Reproductive Medicine […]

Fetal Alcohol Spectrum Disorders and differential diagnosis

Fetal Alcohol Spectrum Disorders includes numerous conditions due to exposure to alcohol during pregnancy. Alcohol has a teratogenic effect, it is able to cross the placental barrier and reach the fetus, which however lacks the enzymes necessary to metabolize it. Long exposure to alcohol and its metabolites (such as acetaldehyde) causes harmful events to fetal […]

Genetics of male infertility

Breda Genetics panel recommended for this condition: Pan73 – Male infertility (AK7, AR, ARMC2, AURKC, AZF, BRDT, C14ORF39, CATSPER1, CATSPER2, CEP112, CFAP43, CFAP44, CFAP58, CFAP58, CFAP65, CFAP69, CFAP70, CFAP91, CFTR, DEFB126, DEFB128, DNAH1, DNAH17, DNAH2, DNAH8, DPY19L2, DZIP1, FANCM, FSHR, FSIP2, HSF2, KLHL10, LHCGR, M1AP, MAATS1, MEIOB, MSH4, MSH5, NANOS1, NR5A1, PICK1, PLCZ1, PLK4, PMFBP1, […]

Short sleepers: awake after just 6 hours of sleep!

It seems we have discovered the reason why some people, being a “short sleeper”, need just 6 hours of sleep, being well awake at 5 o’clock in the morning! So, if we’ll be late in the morning, we’ll be able to say that it’s not our fault, it’s a matter of Genetics instead! So, let’s […]

Low-pass genome sequencing: a new perspective for genome-wide CNV analysis

Next-generation sequencing (NGS) has completely transformed the world of genetic testing, enabling us to sequence human whole exome or whole genome in one single experiment at an unprecedented scale, capacity and convenience. High-throughput sequencing based on short reads has empowered laboratories worldwide. We can now sift a huge amount of data to single out pathogenic […]

CNV analysis: a chimera?

The term Copy Number Variations (CNVs) is traditionally referring to intermediate-scale large deletions/duplications of 1 kb to 5 kb in size. However, in practice, when the analysis is based on data from Next Generation Sequencing (NGS), CNV is used every day more to identify deletions/duplications of any size larger than 50 bp, from one single […]

Start-loss mutations in rare diseases

Mutations are inheritable changes in the DNA sequence. Mutations can be of different size and may affect a single gene (genic mutations), one or more chromosomes in their structure (chromosomal aberrations), or one or more chromosomes in number (genomic aneuploidies). Genic mutations involve one or few single nucleotides. So they can be consistent with point […]

Mutation-genetic disease paradigm: a bewitching picture without a frame

The world of human genetics is wonderfully complex. Next-generation sequencing technologies implemented in genetic testing for rare disorders are impressive tools for searching throughout the whole human genome and singling out mutations causing mendelian diseases. However, although mendelian inheritance may look simple, its mechanisms is usually tangled in a wide range of biological phenomena that […]

Unraveling uniparental disomy

Normally, every human has 22 pairs of chromosomes (called homologous chromosomes or homologs or autosomes) plus one couple of sexual chromosomes (which are two X chromosomes in females and one chromosome X plus one chromosome Y in males). For normal development, we need that, for each pair of autosomes, one is inherited from the mother […]

Robertsonian translocations: what to do?

A Robertsonian translocation is a chromosomal rearrangment involving two acrocentric chromosomes. Robertsonian translocations are actually the most frequent chromosomal rearrangment in humans, showing an incidence of 1 in 1,000. A difference between Robertsonian translocations and balanced translocations is in that people with a Robertsonian translocation has 45 chromosomes instead of 46. The translocation takes place […]