658 results match your criteria: "The Cyprus Institute of Neurology and Genetics.[Affiliation]"

Physical activity, sedentary time and breast cancer risk: a Mendelian randomisation study.

Br J Sports Med

October 2022

Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia

Article Synopsis
  • - The study investigates the causal relationship between physical activity, sedentary behavior, and breast cancer risk using Mendelian randomization, analyzing data from over 130,000 European women.
  • - Findings suggest that higher levels of genetic predisposition to physical activity are linked to a significantly lower overall breast cancer risk, particularly for pre/perimenopausal cases, while increased sedentary time correlates with a higher risk of certain types of tumors.
  • - The results are consistent across various test groups and indicate that promoting physical activity and reducing sedentary behavior might be beneficial in mitigating breast cancer risks.
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Article Synopsis
  • - Genome-wide association studies have identified over 200 genetic variants linked to breast cancer, but these only account for a small portion of the overall risk, prompting researchers to explore the role of gene-environment interactions.
  • - The study used data from over 93,000 individuals to analyze how predicted gene expression might interact with 14 known risk factors for breast cancer, employing rigorous statistical methods to assess these interactions.
  • - Ultimately, the research found no strong evidence supporting significant gene-environment interactions affecting breast cancer risk, indicating that these genetic expressions may play a limited role in modifying the impact of established risk factors.
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Multiple sclerosis (MS) is an autoimmune inflammatory disease of the central nervous system (CNS) with an unknown etiology, although genetic, epigenetic, and environmental factors are thought to play a role. Recently, coagulation components have been shown to provide immunomodulatory and pro-inflammatory effects in the CNS, leading to neuroinflammation and neurodegeneration. The current study aimed to determine whether patients with MS exhibited an overrepresentation of polymorphisms implicated in the coagulation and whether such polymorphisms are associated with advanced disability and disease progression.

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Background: Genetic diversity of mutations in the CYP21A2 gene is the main cause of the monogenic congenital adrenal hyperplasia (CAH) disorder. On chromosome 6p21.3, the CYP21A2 gene is partially overlapped by the TNXB gene, the two residing in tandem with their highly homologous corresponding pseudogenes (CYP21A1P and TNXA), which leads to recurrent homologous recombination.

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Novel iron chelator SK4 demonstrates cytotoxicity in a range of tumour derived cell lines.

Front Mol Biosci

September 2022

Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom.

Iron is an essential micronutrient due to its involvement in many cellular processes including DNA replication and OXPHOS. Tumors overexpress iron metabolism linked proteins which allow for iron accumulation driving high levels of proliferation. Our group has designed novel iron chelator SK4 which targets cancer's "iron addiction.

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Novel clinical, molecular and bioinformatics insights into the genetic background of autism.

Hum Genomics

September 2022

Laboratory of Genetics, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100, Alexandroupolis, Greece.

Background: Clinical classification of autistic patients based on current WHO criteria provides a valuable but simplified depiction of the true nature of the disorder. Our goal is to determine the biology of the disorder and the ASD-associated genes that lead to differences in the severity and variability of clinical features, which can enhance the ability to predict clinical outcomes.

Method: Novel Whole Exome Sequencing data from children (n = 33) with ASD were collected along with extended cognitive and linguistic assessments.

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Alzheimer's disease (AD) is a progressive neurodegenerative disease of the brain causing either familial or sporadic dementia. We have previously administered the modified C5a receptor agonist (EP67) for a short period to a transgenic mouse model of AD (5XFAD) and have observed not only reduction in β-amyloid deposition and gliosis but also improvement in cognitive impairment. Inquiring, however, on the effects of EP67 in an already heavily burdened animal, thus representing a more realistic scenario, we treated 6-month-old 5XFAD mice for a period of 14 weeks.

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Objective: Cases of thrombosis have been reported after administration of SARS-CoV-2 vaccines, with controversial results relating to Oxford-AstraZeneca's ChAdOx1-S. Despite such cases being rare, they still raised concerns for their involvement in coagulopathies. Anti-cardiolipin (aCL) IgG antibodies have been linked to venous and arterial thrombosis.

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The Human Glucocorticoid Receptor Beta: From Molecular Mechanisms to Clinical Implications.

Endocrinology

October 2022

Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, National and Kapodistrian University of Athens Medical School, 'Aghia Sophia' Children's Hospital, Athens 11527, Greece.

Glucocorticoids play a fundamental role in a plethora of cellular processes and physiologic functions through binding on a ubiquitously expressed receptor, the glucocorticoid receptor (GR), which functions as a ligand-activated transcription factor influencing the transcription rate of numerous genes in a positive or negative fashion. For many years, we believed that the pleiotropic actions of glucocorticoids were mediated by a single GR protein expressed by the NR3C1 gene. Nowadays, we know that the NR3C1 gene encodes 2 main receptor isoforms, the GRα and the GRβ, through alternative splicing of the last exons.

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Background: Focussed Ultrasound (FUS) combined with microbubbles (MBs) was proven a promising modality for non-invasive blood brain barrier disruption (BBBD). Herein, two devices for FUS-mediated BBBD in rodents are presented.

Methods: A two-axes robotic device was manufactured for navigating a single element FUS transducer of 1 MHz relative to the brain of rodents.

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Background: The present study aimed to explore the associations between functional capacity and global cognition, executive function and well-being in older adults. Methods: Ninety-seven older adults (age 80.6 ± 8.

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Article Synopsis
  • Reproductive factors, such as parity and breastfeeding, show varying associations with different subtypes of breast cancer, particularly distinguishing between estrogen receptor-positive and -negative types.
  • In a vast study involving over 23,000 cases and 71,000 controls, researchers used statistical methods to examine how these factors relate to intrinsic breast cancer subtypes like luminal A-like and triple-negative.
  • The findings revealed that parous women face a decreased risk of certain ER-positive breast cancers after a significant time post-birth, while they show an increased risk of triple-negative breast cancer, particularly soon after childbirth, indicating the complexity of reproductive biology's role in breast cancer risk.
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Starch binding domain-containing protein 1 (STBD1) is an endoplasmic reticulum (ER)-resident, glycogen-binding protein. In addition to glycogen, STBD1 has been shown to interact with several proteins implicated in glycogen synthesis and degradation, yet its function in glycogen metabolism remains largely unknown. In addition to the bulk of the ER, STBD1 has been reported to localize at regions of physical contact between mitochondria and the ER, known as Mitochondria-ER Contact sites (MERCs).

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Background: Thalassemias are inherited blood disorders and by far one of the most common monogenic diseases globally. Beta-thalassemia has a particularly high prevalence in Cyprus, with the IVSI-110 G>A (HBB:c.93-21G>A) pathogenic variation representing almost 79% of the total carriers.

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ANO10 Function in Health and Disease.

Cerebellum

June 2023

Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, Iroon Avenue 6, Agios Dometios 2371, Nicosia, Cyprus.

Anoctamin 10 (ANO10), also known as TMEM16K, is a transmembrane protein and member of the anoctamin family characterized by functional duality. Anoctamins manifest ion channel and phospholipid scrambling activities and are involved in many physiological processes such as cell division, migration, apoptosis, cell signalling, and developmental processes. Several diseases, including neurological, muscle, blood disorders, and cancer, have been associated with the anoctamin family proteins.

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There is an ongoing effort to report data on SARS-CoV-2 antibodies in different individuals. Ninety-seven healthcare workers were enrolled in this study (Pfizer's BNT162b2, = 52; and AstraZeneca's ChAdOx1-S, = 45) and S1RBD-specific IgG antibodies were analyzed over time. Both vaccines induced S1RBD-specific antibodies after the second dose.

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Charcot-Marie-Tooth disease type 1A (CMT1A), the most common inherited demyelinating peripheral neuropathy, is caused by PMP22 gene duplication. Overexpression of WT PMP22 in Schwann cells destabilizes the myelin sheath, leading to demyelination and ultimately to secondary axonal loss and disability. No treatments currently exist that modify the disease course.

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Background: Assessment of dietary intake is fundamental for evaluating the interrelationships between diet and disease. The present study aimed to develop and validate the semiquantitative Cypriot food frequency questionnaire (CyFFQ).

Methods: A 171-item paper-and-pencil semiquantitative interview-administered FFQ was developed, including local foods and culturally specific meals commonly consumed among Cypriot adults.

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Background/aim: Despite improvement in current therapies, the 5-year overall survival rate of colorectal carcinoma is still low especially in its metastatic form. On the other hand, hyperthermia has been utilized as a cancer treatment approach to improve overall therapeutic efficacy. In the present study, we have aimed to develop an optimized hyperthermic protocol against an in vitro model of human colon carcinoma, as a single and/or adjuvant treatment approach.

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Poland syndrome is a rare developmental disorder characterized by unilateral, complete or partial, absence of the pectoralis major (and often minor) muscle, accompanied with ipsilateral hand malformations. To date, no clear genetic cause has been associated with Poland syndrome, although familial cases have been reported. We report the employment of trio exome investigation and the identification of a heterozygous de novo pathogenic variant in the gene, a transcription factor associated with transcriptional repression during development, in a 14-yr-old boy with Poland syndrome.

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Background: The strong link between innate immunity and thrombosis/coagulation has recently been investigated in the light of antibodies directed against serine proteases of the coagulation pathway. The antibodies have been proposed as contributing factors to venous thromboembolism development and as key molecules in the initiation of signaling inflammatory pathways in neuroinflammatory diseases. Preliminary studies of Multiple Sclerosis (MS) progression characteristics with the reactivity of antibodies against coagulant components are limited.

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Genome-wide and transcriptome-wide association studies of mammographic density phenotypes reveal novel loci.

Breast Cancer Res

April 2022

Department of Epidemiology, School of Public Health, University of Washington, 3980 15th Ave NE, Box 351619, Seattle, WA, 98195, USA.

Background: Mammographic density (MD) phenotypes, including percent density (PMD), area of dense tissue (DA), and area of non-dense tissue (NDA), are associated with breast cancer risk. Twin studies suggest that MD phenotypes are highly heritable. However, only a small proportion of their variance is explained by identified genetic variants.

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Serum miRNAs as biomarkers for the rare types of muscular dystrophy.

Neuromuscul Disord

April 2022

Department of Molecular Genetics, Function and Therapy, The Cyprus Institute of Neurology and Genetics, 6 Iroon Avenue, 2371 Ayios Dometios, PO Box 23462, Nicosia 1683, Cyprus; Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 6 Iroon Avenue, 2371 Ayios Dometios, PO Box 23462, Nicosia 1683, Cyprus. Electronic address:

Muscular dystrophies are a group of disorders that cause progressive muscle weakness. There is an increasing interest for the development of biomarkers for these disorders and specifically for Duchene Muscular Dystrophy. Limited research however, has been performed on the biomarkers' development for the most rare muscular dystrophies, like the Facioscapulohumeral Muscular Dystrophy, Limb-Girdle Muscular Dystrophy and Myotonic Dystrophy type 2.

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Muscular dystrophies are a group of rare and severe inherited disorders mainly affecting the muscle tissue. Duchene Muscular Dystrophy, Myotonic Dystrophy types 1 and 2, Limb Girdle Muscular Dystrophy and Facioscapulohumeral Muscular Dystrophy are some of the members of this family of disorders. In addition to the current diagnostic tools, there is an increasing interest for the development of novel non-invasive biomarkers for the diagnosis and monitoring of these diseases.

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The lifetime of orthopaedic implants can be extended by coating the softer TiAlV alloy with harder biocompatible thin films. In this work, thin films of TiAu are grown on TiAlV and glass substrates by magnetron sputtering in the entire x = 0-1 range, before their key biomechanical properties are performance tuned by thermal activation. For the first time, we explore the effect of in-situ substrate heating versus ex-situ post-deposition heat-treatment, on development of mechanical and biocompatibility performance in Ti-Au films.

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