The spatiotemporal configuration of genes with distal regulatory elements is believed to be crucial for transcriptional control, but full mechanistic understanding is lacking. We combine simultaneous live tracking of pairs of genomic loci and nascent transcripts with molecular dynamics simulations to assess the gene and its enhancer. We find that both loci exhibit more constrained mobility than control sequences due to stalled cohesin at CCCTC-binding factor sites.
View Article and Find Full Text PDFIntroduction And Aim: Locally advanced head and neck squamous cell carcinoma (LA-Hnscc) is a true therapeutical challenge in the modern era and the scientific community is trying to face this challenge with new therapeutical strategies, including combinations of monoclonal antibodies and radiation therapy. The aim of this study is to evaluate clinical outcomes in LA-Hnscc patients unfit to receive platinum-based chemotherapy, treated with concurrent simultaneous integrated boost-intensity modulated radiotherapy (Sib-Imrt) + cetuximab (Ctx) in daily clinical practice.
Methods: LA-Hnscc patients not included in other prospective studies treated in 4 Italian radiotherapy units (2 Messina, 1 Rome, and 1 Lecce) using Sib-Imrt and Ctx were included in this study.
The spatiotemporal configuration of genes with distal regulatory elements, and the impact of chromatin mobility on transcription, remain unclear. Loop extrusion is an attractive model for bringing genetic elements together, but how this functionally interacts with transcription is also largely unknown. We combine live tracking of genomic loci and nascent transcripts with molecular dynamics simulations to assess the spatiotemporal arrangement of the gene and its enhancer, in response to a battery of perturbations.
View Article and Find Full Text PDFPurpose: To evaluate the role of stereotactic body radiation therapy (SBRT) delivered after external-beam fractionated irradiation in non-small-cell lung cancer (NSCLC) patients with clinical stage III A, B.
Materials And Methods: All patients received three-dimensional conformal radiotherapy (3D-CRT) or intensity modulated radiation therapy (IMRT) (60-66 Gy/30-33 fractions of 2 Gy/5 days a week) with or without concomitant chemotherapy. Within 60 days from the end of irradiation, a SBRT boost (12-22 Gy in 1-3 fractions) was delivered on the residual disease.
The spatiotemporal configuration of genes with distal regulatory elements, and the impact of chromatin mobility on transcription, remain unclear. Loop extrusion is an attractive model for bringing genetic elements together, but how this functionally interacts with transcription is also largely unknown. We combine live tracking of genomic loci and nascent transcripts with molecular dynamics simulations to assess the 4D arrangement of the gene and its enhancer, in response to a battery of perturbations.
View Article and Find Full Text PDFOld or very old oncological patients represent a heterogeneous and frail population due to concomitant comorbidities. Whether radiotherapy alone or in combination with novel cancer drugs may provide a clear benefit in this setting of patients is still a matter of debate. The aim of our review is to analyze the evaluation process and the different therapeutic possibilities in older cancer patients, focusing on the different and most disparate applications of radiotherapy.
View Article and Find Full Text PDFBackground/aim: To evaluate the impact of sarcopenia in muscle invasive bladder cancer (MIBC) elderly patients submitted to curative radiotherapy.
Patients And Methods: Patients received radiotherapy between 2013 and 2018, and the skeletal muscle index was calculated to classify them as sarcopenic or non-sarcopenic. Primary endpoints were overall survival (OS), cancer specific survival (CSS), 90-day mortality and toxicity.
We present the case of a patient with vaginal mucosal melanoma who underwent complete remission after immunotherapy and '0-7-21' radiotherapy regimen (24 Gy/3 fractions/21 days). An 80-year-old woman had a biopsy of a voluminous vaginal lesion and received a histological diagnosis of melanoma with angiomatoid aspects. The patient underwent immunotherapy with pembrolizumab 2 mg/kg every 3 weeks and was sent to our attention for planning radiotherapy as the extent of the lesion did not make it susceptible to surgery.
View Article and Find Full Text PDFMeasles is a highly contagious airborne disease. Unvaccinated pregnant women are not only at risk of infection but also at risk of severe pregnancy complications. As measles causes a dysregulation of the entire immune system, we describe immunological variations and how immune response mechanisms can lead to adverse pregnancy outcomes.
View Article and Find Full Text PDFAim: To evaluate clinical outcome in locally-advanced stage IV (M0) head and neck cancer patients treated using intensity-modulated radiotherapy (IMRT) with simultaneous integrated boost (SIB) in daily clinical practice.
Background: Despite SIB-IMRT has been reported as a feasible and effective advanced head and neck cancer treatment, there are few data about its concurrent use with systemic therapies.
Material And Methods: We reviewed 41 staged IV (M0) head and neck cancer patients treated in two radiotherapy units in the city of Messina (Italy) during the last six years, using intensity modulated techniques-SIB.
Background: Epidemiological studies highlighted the possibility that exposure to cyanotoxins leads to the development of the neurodegenerative disease amyotrophic lateral sclerosis (ALS).
Methods: We devised a population-based case-control study in two Italian populations. We used residential proximity of the residence to water bodies as a measure of possible exposure to cyanotoxins.
It is established that transcription of many metazoan genes is regulated by distal regulatory sequences beyond the promoter. Enhancers have been identified at up to megabase distances from their regulated genes, and/or proximal to or within the introns of unregulated genes. The unambiguous identification of the target genes of newly identified regulatory elements can thus be challenging.
View Article and Find Full Text PDFOveractive bladder syndrome (OAB) is defined by the presence of urinary urgency, with or without urge incontinence, usually accompanied by an increase in urinary frequency and nocturia in the absence of urinary tract infections (UTI) or other diseases. The overall prevalence of OAB symptoms in the female population is reported to be 16.6% and increases with advancing age and menopause.
View Article and Find Full Text PDFWomen with endometriosis represent a significant proportion of all outpatient gynecological consultations. Endometriosis is a benign chronic condition characterized by the spreading of endometrial-like tissue outside the uterus. A correlation between endometriosis and infertility has been strongly underlined in the literature about the topic: recent data suggest that up to 50% of women with infertility may suffer from this disease.
View Article and Find Full Text PDFIntroduction: In recent years, a phenomenon known as "vaccine hesitancy" has spread throughout the world, even among health workers, determining a reduction in vaccination coverage (VC).A study aimed at evaluating VC among healthcare workers (HCWs) in 10 Italian cities (L'Aquila, Genoa, Milan, Palermo, Sassari, Catanzaro, Ferrara, Catania, Naples, Messina) was performed.
Materials And Methods: Annex 3 of the Presidential Decree n.
Background: Dietary vitamins and minerals are essential compounds for the proper functioning of metabolic enzymes, regulation of gene transcription, and powering the body’s defense against oxidative stress. The aim of the present study was to investigate micronutrient consumption separately by age and sex, major dietary sources, and percentage of individuals meeting the recommended requirements according to Italian (Livelli di Assunzione di Riferimento di Nutrienti (LARN)) and European (European Food Safety Agency (EFSA)) agencies.
Methods: Data were obtained from the Mediterranean Healthy Eating, Ageing, and Lifestyle (MEAL) study, which included a sample of 1838 individuals randomly collected in the city of Catania, southern Italy.
Background: Dietary intake of macronutrient and foods is considered crucial to decrease the risk of diet-related non-communicable diseases.
Methods: The aim of this study was to describe the intake of major food groups and macronutrients in a random sample of 1838 southern Italian adults.
Results: No significant differences of macronutrient consumption between sexes were found.
The aim of the present study was to investigate the total water intake (TWI) from drinks and foods and to evaluate the correlation between the different types of drinks on energy and antioxidant intake. The cohort comprised 1602 individuals from the city of Catania in Southern Italy. A food frequency questionnaire was administered to assess dietary and water intake.
View Article and Find Full Text PDFThe aim of the present study was to determine the association between Mediterranean diet adherence and dyslipidaemia in a cohort of adults living in the Mediterranean area. The cross-sectional study comprised a total sample of 2044 men and women, aged >18 years old from southern Italy. The Mediterranean diet adherence was assessed using a validated score (MEDI-LITE score).
View Article and Find Full Text PDFA decline in adherence to the Mediterranean dietary pattern has been observed over the last years. The aim of this study was to assess the level of adherence to the Mediterranean diet and possible determinants in the Mediterranean healthy Eating, Aging and Lifestyle (MEAL) study cohort. Demographic and dietary data of 1937 individuals were collected in 2014-2015 from the general population of Catania, Sicily (Italy).
View Article and Find Full Text PDFGynaecological cancer is a very stressful experience for women and treatments can compromise fertility and reproductive capacity. Fertility preservation techniques in women with gynaecological cancer can play an important role in improving the quality of life of these patients but, in many cases, the information about this type of treatment is not adequate. It is important to further investigate this topic in order to reduce the impact of gynaecological cancer on the quality of life of survivors as much as possible.
View Article and Find Full Text PDFCell differentiation is associated with progressive immobilization of chromatin proteins, expansion of heterochromatin, decrease of global transcriptional activity and induction of lineage-specific genes. However, how these processes relate to one another remains unknown. We show here that the heterochromatic domains of mouse embryonic stem cells (ESCs) are dynamically distinct and possesses a mosaic sub-structure.
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