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Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
Published on: June 21, 2018
Clinical genetic testing of periodic fever syndromes
Annalisa Marcuzzi1, Elisa Piscianz, Giulio Kleiner
1Laboratory of Immunopathology, Institute for Maternal and Child Health (IRCCS) "Burlo Garofolo", 34137 Trieste, Italy. marcuzzi@burlo.trieste.it
Abstract:
Periodic fever syndromes (PFSs) are a wide group of autoinflammatory diseases. Due to some clinical overlap between different PFSs, differential diagnosis can be a difficult challenge. Nowadays, there are no universally agreed recommendations for most PFSs, and near half of patients may remain without a genetic diagnosis even after performing multiple-gene analyses. Molecular analysis of periodic fevers' causative genes can improve patient quality of life by providing early and accurate diagnosis and allowing the administration of appropriate treatment. In this paper we focus our discussion on effective usefulness of genetic diagnosis of PFSs. The aim of this paper is to establish how much can the diagnostic system improve, in order to increase the success of PFS diagnosis. The mayor expectation in the near future will be addressed to the so-called next generation sequencing approach. Although the application of bioinformatics to high-throughput genetic analysis could allow the identification of complex genotypes, the complexity of this definition will hardly result in a clear contribution for the physician. In our opinion, however, to obtain the best from this new development a rule should always be kept well in mind: use genetics only to answer specific clinical questions.
Insights
Genetic diagnosis for periodic fever syndromes (PFSs) aids accurate identification and treatment. Focusing genetic testing on specific clinical questions improves diagnostic success rates for these autoinflammatory diseases.
Area of Science:
- Genetics
- Immunology
- Rare Diseases
Background:
- Periodic fever syndromes (PFSs) are a diverse group of autoinflammatory diseases with overlapping clinical features, complicating differential diagnosis.
- Current diagnostic challenges include a lack of universal recommendations and a significant proportion of patients remaining without a genetic diagnosis even after extensive testing.
- Accurate and early diagnosis through molecular analysis of causative genes is crucial for improving patient quality of life and enabling targeted treatment.
Purpose of the Study:
- To evaluate the effectiveness of genetic diagnosis in improving the diagnostic system for periodic fever syndromes.
- To determine how advancements in diagnostic approaches can increase the success rate of PFS diagnosis.
- To discuss the utility of genetic testing in managing patients with suspected autoinflammatory conditions.
Main Methods:
- Review and discussion of the current landscape of genetic diagnosis for periodic fever syndromes.
- Exploration of the potential and limitations of next-generation sequencing (NGS) approaches in PFS diagnosis.
- Analysis of the role of bioinformatics in interpreting high-throughput genetic data.
Main Results:
- Molecular genetic analysis offers a pathway to early and accurate diagnosis, leading to improved patient outcomes.
- Despite advancements like NGS, interpreting complex genetic findings for clinical application remains a challenge.
- The successful application of genetic testing is contingent on its targeted use to address specific clinical questions.
Conclusions:
- Genetic diagnosis is a valuable tool for improving the management of periodic fever syndromes.
- A strategic approach, focusing genetic testing on clear clinical indications, is essential for maximizing diagnostic yield.
- Future advancements in genetic analysis should be guided by clinical relevance to ensure tangible benefits for physicians and patients.
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