Publications by authors named "PETRESCU A"

We test here the prediction capabilities of the new generation of deep learning predictors in the more challenging situation of multistate multidomain proteins by using as a case study a coiled-coil family of Nucleotide-binding Oligomerization Domain-like (NOD-like) receptors from and a few extra examples for reference. Results reveal a truly remarkable ability of these platforms to correctly predict the 3D structure of modules that fold in well-established topologies. A lower performance is noticed in modeling morphing regions of these proteins, such as the coiled coils.

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Cenobamate is a new and highly effective antiseizure compound used for the treatment of adults with focal onset seizures and particularly for epilepsy resistant to other antiepileptic drugs. It acts on multiple targets, as it is a positive allosteric activator of γ-aminobutyric acid type A (GABA) receptors and an inhibitor of neuronal sodium channels, particularly of the late or persistent Na current. We recently evidenced the inhibitory effects of cenobamate on the peak and late current component of the human cardiac isoform hNav1.

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Unlabelled: Premature rupture of membranes (PROM) and cervical incompetence (CI) are major contributors to preterm birth, a leading cause of neonatal morbidity and mortality.

Background/objectives: Disorders of the vaginal microbiota, such as bacterial vaginosis, have been associated with an increased risk of PROM, CI, and subsequent preterm birth. Probiotics, particularly Lactobacillus strains, have been proposed as a preventive strategy to restore and maintain a healthy vaginal microbiome.

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Objectives: Resective surgery in drug-resistant focal epilepsy (DRFE) requires extensive evaluation to localize the epileptogenic zone (EZ). When non-invasive phase 1 assessments (electroencephalography, EEG; magnetic resonance imaging, MRI; and F-Fluorodeoxyglucose-positron emission tomography, [F]FDG-PET) are inconclusive for EZ localization, invasive investigations such as stereo-EEG (SEEG) are necessary. Epileptogenicity maps (Ems) visualize the EZ using SEEG-identified ictal high-frequency oscillations (iHFOs).

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Persistent Müllerian duct syndrome (PMDS) is a rare kind of internal male pseudohermaphroditism. The patient, who has a male karyotype and phenotypic characteristics, exhibits Müllerian duct derivatives such as the uterus, cervix, fallopian tubes, and upper two-thirds of the vagina. This article provides a comprehensive analysis of the CT and MRI characteristics of a case of PMDS in a 35-year-old male patient who sought medical attention at our clinic due to pain in the left inguinal region and the presence of undescended testes on both sides.

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In patients suffering from focal drug-resistant epilepsy, intracranial explorations are the gold standard for identifying the epileptogenic zone and evaluating the possibility of a surgical resection. Amongst them, stereoelectroencephalography (SEEG), using depth electrodes, is a safe procedure. However, complications occur on average in 2% of cases, notably haemorrhages or infections.

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Background: Myocardial diastolic function assessment in children by conventional echocardiography is challenging. High-frame rate echocardiography facilitates the assessment of myocardial stiffness, a key factor in diastolic function, by measuring the propagation velocities of myocardial shear waves (SWs). However, normal values of natural SWs in children are currently lacking.

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Cardiovascular magnetic resonance (CMR) imaging is recommended in patients with congenital heart disease (CHD) in clinical practice guidelines as the imaging standard for a large variety of diseases. As CMR is evolving, novel techniques are becoming available. Some of them are already used clinically, whereas others still need further evaluation.

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Gulf War Illness (GWI) describes a series of symptoms suffered by veterans of the Gulf war, consisting of cognitive, neurological and gastrointestinal dysfunctions. Two chemicals associated with GWI are the insecticide permethrin (PER) and the nerve gas prophylactic pyridostigmine-bromide (PB). In this study we assessed the effects of PER and PB exposure on the pathology and subsequent alcohol (EtOH)-induced liver injury, and the influence of a macrophage depletor, PLX3397, on EtOH-induced liver damage in PER/PB-treated mice.

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(1) Background: The aim of our study was to assess the involvement of the sympathetic nervous system in the progression of patients with gastric carcinoma by analyzing the sympathetic neuronal fibers and beta 2 adrenoreceptors. (2) Methods: We performed a retrospective study in which we analyzed the clinical, biological, and histological data from a total of 104 patients diagnosed with stomach cancer. (3) Results: After analyzing the immunoreactivity of beta 2 adrenoreceptors, we observed increased values in patients with tumors larger than 5 cm in diameter ( = 0.

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Gulf War Illness (GWI) describes a series of symptoms suffered by veterans of the Gulf war consisting of cognitive, neurological and gastrointestinal dysfunctions. Two chemicals associated with GWI are the insecticide permethrin (PER) and the nerve gas prophylactic pyridostigmine-bromide (PB). In this study we assessed the effects of PER and PB exposure on pathology and subsequent alcohol (EtOH)-induced liver injury, and the influence of a macrophage depletor, PLX3397, on EtOH-induced liver damage in PER/PB- treated mice.

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Breast cancer is often seen as a disease that occurs in women, but it can also appear in men in a very small percentage, below 1%. Men have a minimal amount of breast tissue compared to women, which has the potential to become malignant in a similar way to women, although much less frequently. A patient presented with advanced local invasion due to the low amount of breast tissue, with the tumor quickly invading the adjacent structures.

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Several studies have shown that the retroinsular and posterior parietal operculum regions play a central role in vestibular processing. Electrical stimulations performed during stereoelectroencephalography (SEEG) in patients with focal drug-resistant epilepsy could contribute to the analysis of this area. Among the 264 SEEGs performed in both an adult and a paediatric epilepsy surgery centre, we retrospectively identified 24 patients (9%) reporting vertigo during electrical stimulations (ES).

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Article Synopsis
  • A series of events known as "molecular domestication" transformed an invertebrate transposase (RAGL) into a key enzyme (RAG) for adaptive immunity in jawed vertebrates.
  • Research revealed that complete RAGL-A transposons exist in species like the hemichordate Ptychodera flava and some echinoderms, with their proteins showing a blend of features from RAG and RAGL-B.
  • The study suggests that some adaptations, like the acidic hinge in RAG2L-A proteins, were present in invertebrates and played a role in RAG's evolution, shifting focus to other adaptations for the final steps of RAG domestication in jawed vertebrates
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Article Synopsis
  • * Patients underwent 24-hour Holter ECG monitoring to assess their HRV before starting treatment, with specific focus on indices like SDNN and rMSSD.
  • * Results showed that patients with lower SDNN values had shorter median survival rates (9 months) compared to those with higher values (15 months), indicating reduced HRV as a negative prognostic factor for survival in PCa.
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Background And Objectives: Translocator protein 18 kDa (TSPO) PET imaging is used to monitor glial activation. Recent studies have proposed TSPO PET as a marker of the epileptogenic zone (EZ) in drug-resistant focal epilepsy (DRFE). This study aims to assess the contributions of TSPO imaging using [F]DPA-714 PET and [F]FDG PET for localizing the EZ during presurgical assessment of DRFE, when phase 1 presurgical assessment does not provide enough information.

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Article Synopsis
  • The text discusses how a series of molecular changes transformed a transposase from invertebrates into a vital enzyme for immune response in jawed vertebrates, known as the RAG recombinase.
  • New evidence reveals that complete transposons exist in some echinoderms and display hybrid characteristics that suggest they play a role in both DNA binding and transposition activities similar to RAG proteins.
  • The findings propose that certain features in RAG proteins, previously thought unique to jawed vertebrates, actually originated from invertebrates, emphasizing their evolutionary importance in the development of adaptive immunity.
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Continuous developments in cardiovascular imaging, software and hardware have led to technological advancements that open new ways for assessing myocardial mechanics, hemodynamics, and function. Through new scan modalities, echocardiographic scanners can nowadays achieve very high frame rates up to 5000 frames s which enables a wide variety of new applications, including shear wave elastography, ultrafast speckle tracking, the visualization of intracardiac blood flow and myocardial perfusion imaging. This review provides an overview of these advances and demonstrates possible applications and their potential added value in the clinical practice.

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The impact of the peptide amino acids side-chain modifications on the immunological recognition has been scarcely explored. We investigate here the effect of methionine oxidation on the antigenicity of the melanoma immunodominant peptide 369-YMDGTMSQV-377 (YMD). Using CD8 T cell activation assays, we found that the antigenicity of the sulfoxide form is higher when compared to the YMD peptide.

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Background: The aim of our study was to evaluate sympathetic neuronal remodeling in patients with pancreatic cancer, together with its correlation with clinical outcomes.

Methods: In this descriptive, retrospective study, we analyzed pancreatic cancer specimens and peritumoral pancreatic tissue from 122 patients. We also investigated tyrosine hydroxylase immunoreactivity for the analysis of sympathetic nerve fibers and beta 2 adrenoreceptors immunoreactivity.

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During the last decades, male urogenital cancers (including prostate, renal, bladder and testicular cancers) have become one of the most frequently encountered malignancies affecting all ages. While their great variety has promoted the development of various diagnosis, treatment and monitoring strategies, some aspects such as the common involvement of epigenetic mechanisms are still not elucidated. Epigenetic processes have come into the spotlight in the past years as important players in the initiation and progression of tumors, leading to a plethora of studies highlighting their potential as biomarkers for diagnosis, staging, prognosis, and even as therapeutic targets.

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Background: We aimed to evaluate the usefulness of three-dimensional (3D) reconstruction of histology slides to confirm congenital heart disease (CHD) detected by first-trimester fetal cardiac ultrasonography. Conventional autopsy is hindered by the small size of the first-trimester fetal heart, and current CHD confirmation studies employ the use of highly specialized and expensive methods.

Technique: An extended first-trimester ultrasound examination protocol was used to diagnose fetal heart anomalies.

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Calreticulin (CALR) frameshift mutations represent the second cause of myeloproliferative neoplasms (MPN). In healthy cells, CALR transiently and non-specifically interacts with immature N-glycosylated proteins through its N-terminal domain. Conversely, CALR frameshift mutants turn into rogue cytokines by stably and specifically interacting with the Thrombopoietin Receptor (TpoR), inducing its constitutive activation.

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Article Synopsis
  • The study aimed to evaluate the effectiveness and acceptance of Standardized Patients (SPs) for training undergrad medical students in conducting psychiatric assessments and improving their communication skills.
  • The 3rd-year medical students, who had no clinical experience, learned through lectures and hands-on practice with SPs, followed by discussions with peers and faculty to reinforce their learning.
  • Survey results revealed that students felt they gained valuable skills in psychiatric interviewing and communication, finding the SPs authentic and the process enjoyable, suggesting this approach is beneficial for teaching psychiatry early in medical education.
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Background/aim: The overactive bladder syndrome (OAB) is a bothersome condition that affects up to 33% of the population. In up to 69% of the cases, the underlying condition is an overactive detrusor (DO). Treatment options rely on behavioral changes, medical treatment, neuromodulation, and invasive treatment, such as injecting botulinum toxin (BoNT) in the detrusor or augmentation cystoplasty.

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