4.5 Article

Epidemiology of Huntington disease in Cyprus: A 20-year retrospective study

Journal

CLINICAL GENETICS
Volume 93, Issue 3, Pages 656-664

Publisher

WILEY
DOI: 10.1111/cge.13168

Keywords

Cyprus; epidemiology; founder effect; geographic clustering; Huntington disease; incidence; prevalence

Funding

  1. Cyprus School of Molecular Medicine
  2. Cyprus Institute of Neurology and Genetics

Ask authors/readers for more resources

Huntington disease (HD) is most prevalent among populations of western European descent and isolated populations where founder effects may operate. The aim of this study was to examine the epidemiology of HD in Cyprus, an island in southern Europe with extensive western European colonization in the past. All registered HD patients in the Cyprus, since 1994, were included. Detailed pedigrees and clinical information were recorded and maps, showing the geographic distribution of HD, were constructed. Requests for genetic testing were also examined. The project identified 58 clinically manifested cases of HD belonging to 19 families. The 16 families of Cypriot origin were concentrated in a confined geographical cluster in southeast Cyprus. In 2015, prevalence of symptomatic HD was 4.64/100000 population, while incidence was 0.12/100000 person-years. Prevalence displayed a marked increase during the past 20years. Disease characteristics of HD patients were similar to those reported in western European populations. Lastly, the uptake of predictive and/or prenatal testing was limited. HD disease characteristics, incidence and prevalence in Cyprus were comparable to western European populations. Together with the geographical clustering observed, these results support the possibility for a relatively recent founder effect of HD in Cyprus, potentially of western European origin.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.5
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Toxicology

Impact of marijuana legalization on cannabis-related visits to the emergency department

Nicole V. Tolan, Tolumofe Terebo, Peter R. Chai, Timothy B. Erickson, Bryan D. Hayes, Sacha N. Uljon, Athena K. Petrides, Christiana A. Demetriou, Stacy E. F. Melanson

Summary: A study in two academic medical centers in Boston investigated the impact of marijuana legalization on emergency department visits, revealing a significant increase in positive THC IA results and cannabis-related ICD-10 codes as legalization progressed. The increase in THC IA positivity was particularly notable in females, patients aged 30-39, older adults, and those in the highest income tertile, while there were no significant trends observed for patient demographics in ICD-10 codes.

CLINICAL TOXICOLOGY (2022)

Article Genetics & Heredity

A Novel SPG7 Gene Pathogenic Variant in a Cypriot Family With Autosomal Recessive Spastic Ataxia

Christina Votsi, Antonis Ververis, Paschalis Nicolaou, Yiolanda-Panayiota Christou, Kyproula Christodoulou, Eleni Zamba-Papanicolaou

Summary: This study reports a large Cypriot family with spastic ataxia caused by a novel homozygous missense variant in the SPG7 gene. The patients exhibited typical features of spastic ataxia, but phenotypic variation was observed within the family. Functional studies revealed aberrant mitochondrial morphology, indicating the pathogenicity of the identified variant.

FRONTIERS IN GENETICS (2022)

Article Nutrition & Dietetics

Relative validity and reproducibility of the CyFFQ semiquantitative food frequency questionnaire for assessing dietary intake in Cypriot adults

Elena Philippou, Christiana A. Demetriou, George Loucaides, Nastazia Solomonidou, Elena Critselis, Maria Polykarpou, Spyros Sioulis, Andreas Hadjisavvas, Kyriacos Kyriacou

Summary: The present study developed and validated a semiquantitative Cypriot food frequency questionnaire (CyFFQ) to assess dietary intake in Cypriot adults. The results showed that the CyFFQ is a valid and reliable tool for assessing dietary consumption.

JOURNAL OF HUMAN NUTRITION AND DIETETICS (2023)

Article Clinical Neurology

Spectrum of Phenotypic, Genetic, and Functional Characteristics in Patients With Epilepsy With KCNC2 Pathogenic Variants

Niklas Schwarz, Simone Seiffert, Manuela Pendziwiat, Annika Verena Rademacher, Tobias Brunger, Ulrike B. S. Hedrich, Paul B. Augustijn, Hartmut Baier, Allan Bayat, Francesca Bisulli, Russell J. Buono, Ben Zeev Bruria, Michael G. Doyle, Renzo Guerrini, Gali Heimer, Michele Iacomino, Hugh Kearney, Karl Martin Klein, Ioanna Kousiappa, Wolfram S. Kunz, Holger Lerche, Laura Licchetta, Ebba Lohmann, Raffaella Minardi, Marie McDonald, Sarah Montgomery, Lejla Mulahasanovic, Renske Oegema, Barel Ortal, Savvas S. Papacostas, Francesca Ragona, Tiziana Granata, Phillip S. Reif, Felix Rosenow, Annick Rothschild, Paolo Scudieri, Pasquale Striano, Paolo Tinuper, George A. Tanteles, Annalisa Vetro, Felix Zahnert, Ethan M. Goldberg, Federico Zara, Dennis Lal, Patrick May, Hiltrud Muhle, Ingo Helbig, Yvonne Weber

Summary: This study identified disease-associated Kv3.2 variants in patients with epilepsy and demonstrated their impact on brain excitability. Some variants were found to increase excitability while others decreased excitability. These findings are important for understanding the pathomechanisms of epilepsy and developing more effective treatment strategies.

NEUROLOGY (2022)

Article Public, Environmental & Occupational Health

Effect of vaccination on SARS-CoV-2 reinfection risk: a case-control study in the Republic of Cyprus

Annalisa Quattrocchi, Constantinos Tsioutis, Anna Demetriou, Theopisti Kyprianou, Maria Athanasiadou, Valentinos Silvestros, Ioannis Mamais, Christiana A. Demetriou, Fani Theophanous, Soteroulla Soteriou, Chryso Gregoriadou, Eleni Anastasiou, Panayiotis Kolios, Christos Haralambous, Ioanna Gregoriou, Olga Kalakouta, Georgios Nikolopoulos

Summary: This study investigates the effectiveness of COVID-19 vaccines in preventing reinfection in the Republic of Cyprus. The results show that the control group is more likely to be vaccinated, supporting the offer of vaccination to individuals with previous SARS-CoV-2 infection.

PUBLIC HEALTH (2022)

Article Biochemistry & Molecular Biology

Transcriptomic characterization of tissues from patients and subsequent pathway analyses reveal biological pathways that are implicated in spastic ataxia

Andrea C. Kakouri, Christina Votsi, Anastasis Oulas, Paschalis Nicolaou, Massimo Aureli, Giulia Lunghi, Maura Samarani, Giacomo M. Compagnoni, Sabrina Salani, Alessio Di Fonzo, Thalis Christophides, George A. Tanteles, Eleni Zamba-Papanicolaou, Marios Pantzaris, George M. Spyrou, Kyproula Christodoulou

Summary: The study investigated the association between pathogenic variants in the GBA2 gene and Spastic Ataxias (SAs) using RNA-sequencing, identifying significant gene expression differences between SA patients and control tissues. Pathway analyses revealed potential mechanisms involved in SA pathogenesis, offering insights for future biomarker discovery and therapeutic strategies.

CELL AND BIOSCIENCE (2022)

Article Clinical Neurology

The phenotypic spectrum of pathogenic ATP1A1 variants expands: the novel p.P600R substitution causes demyelinating Charcot-Marie-Tooth disease

Feride Cinarli Yuksel, Paschalis Nicolaou, Kerri Spontarelli, Maike F. Dohrn, Adriana P. Rebelo, Pantelitsa Koutsou, Anthi Georghiou, Pablo Artigas, Stephan L. Zuchner, Kleopas A. Kleopa, Kyproula Christodoulou

Summary: This study reports the first case of demyelinating Charcot-Marie-Tooth disease caused by a novel variant in the ATP1A1 gene. Functional analysis showed significantly reduced expression levels of ATP1A1 and ATP1B1 in the patient, as well as decreased cell viability in vitro. These findings further support the causative role of ATP1A1 in peripheral neuropathy and expand the mutational and phenotypic spectrum of ATP1A1-associated CMT.

JOURNAL OF NEUROLOGY (2023)

Letter Clinical Neurology

Novel de novo DNMT1 gene mutation associated with hereditary sensory and autonomic neuropathy 1E (HSAN1E)

Dimitrios Parissis, Kyproula Christodoulou, Kleopas A. A. Kleopa

NEUROLOGICAL SCIENCES (2023)

Article Multidisciplinary Sciences

Enrichr in silico analysis of MS-based extracted candidate proteomic biomarkers highlights pathogenic pathways in systemic sclerosis

Paraskevi P. Chairta, Paschalis Nicolaou, Kyproula Christodoulou

Summary: This study aimed to perform in silico analysis of the already Mass Spectrometry (MS)-based discovered biomarkers of systemic sclerosis (SSc) to extract possible pathways/mechanisms implicated in the disease. The analysis identified several pathways associated with SSc pathogenesis, highlighting the complexity of the disease. Further investigation of these pathways/biological processes and interactions may provide new insights into the understanding of SSc.

SCIENTIFIC REPORTS (2023)

Article Genetics & Heredity

Exploring the Genetic Causality of Discordant Phenotypes in Familial Apparently Balanced Translocation Cases Using Whole Exome Sequencing

Constantia Aristidou, Athina Theodosiou, Angelos Alexandrou, Ioannis Papaevripidou, Paola Evangelidou, Zoe Kosmaidou-Aravidou, Farkhondeh Behjati, Violetta Christophidou-Anastasiadou, George A. Tanteles, Carolina Sismani

Summary: This study used whole exome sequencing (WES) to identify novel candidate variants in four familial ABTs and confirmed previous findings that there is no causal relationship between ABTs and discordant phenotypes. Therefore, WES can be recommended as a complementary test to identify the monogenic cause of aberrant phenotypes in familial ABT carriers.

GENES (2023)

Article Biochemistry & Molecular Biology

PathIN: an integrated tool for the visualization of pathway interaction networks?

George Minadakis, Kyproula Christodoulou, George Tsouloupas, George M. Spyrou

Summary: PathIN is a web-service that enables the rapid creation of pathway-based networks at multiple biological levels and is supported by a database repository of reference pathway networks. It offers five different methodologies for generating networks and is expected to be a valuable tool for understanding molecular mechanism networks related to specific diseases.

COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL (2023)

Article Nutrition & Dietetics

Investigating the Dietary Intake Using the CyFFQ Semi-Quantitative Food Frequency Questionnaire in Cypriot Huntington's Disease Patients

Christiana C. Christodoulou, Christiana A. Demetriou, Elena Philippou, Eleni Zamba Papanicolaou

Summary: This case-control study assessed the dietary intake and habits of Cypriot Huntington's disease (HD) patients and found that they have significantly higher energy intake compared to controls. The study also revealed differences in macro and micronutrients and adherence to the Mediterranean Diet by both patients and controls and by HD symptom severity.

NUTRIENTS (2023)

Review Neurosciences

ANO10 Function in Health and Disease

Androniki Chrysanthou, Antonis Ververis, Kyproula Christodoulou

Summary: ANO10 is a transmembrane protein with ion channel and phospholipid scrambling activities. It is involved in multiple physiological processes and associated with various diseases. ANO10 plays a significant role in the development of SCAR10.

CEREBELLUM (2023)

Meeting Abstract Biochemistry & Molecular Biology

Unraveling the genetic thread of rare disorders by exome sequencing

Petroula Gerasimou, Andri Miltiadous, Ioannis Kyprianou, Jianxiang Chi, Violeta Anastasiadou, George Tanteles, Paul Costeas

EUROPEAN JOURNAL OF HUMAN GENETICS (2022)

No Data Available