Publications by authors named "Alessi A"

Background: In resectable gastric/gastroesophageal junction adenocarcinoma, microsatellite instability-high (MSI-H) confers improved survival, but limited benefit from chemotherapy. Immunotherapy may eliminate the need for chemotherapy or surgery.

Patients And Methods: INFINITY is a multicenter, multicohort phase II trial (NCT04817826) investigating in cohort 1 the activity and safety of tremelimumab + durvalumab (T300/D) as neoadjuvant treatment of mismatch repair deficient/MSI-H, resectable gastric/gastroesophageal junction adenocarcinoma.

View Article and Find Full Text PDF

Introduction: Time is a crucial abstract construct, allowing us to perceive the duration of events. Working memory (WM) plays an important role in manipulating and storing the different features of environmental stimuli, including temporal features. Different brain structures, including the dorsolateral prefrontal cortex, are involved in time processing.

View Article and Find Full Text PDF

Background Depression is one of the most common mental disorders, which is increasing globally with higher prevalence among women. Many factors contribute to the etiology and risk factors for depression, including biological and psychosocial factors. This study aimed to assess the prevalence of depression among the adult population in Al-Qunfudah governorate, southwestern Saudi Arabia (SA).

View Article and Find Full Text PDF

We present a first-principles investigation of Sn paramagnetic centers in Sn-doped vitreous silica based on calculations of the electron paramagnetic resonance (EPR) parameters. The present investigation provides evidence of an extended analogy between the family of Ge paramagnetic centers in Ge-doped silica and the family of Sn paramagnetic centers in Sn-doped silica for SnOconcentrations below phase separation. We infer, also keeping into account the larger spin-orbit coupling of Sn atoms with respect to Ge atoms, that a peculiar and highly distorted three-fold coordinated Sn center (i.

View Article and Find Full Text PDF

Background: Mesenchymal neoplasms of the uterus encompass a diverse group of tumors, with varying characteristics and origins, collectively accounting for 8% of uterine malignancies. The most common variants include uterine leiomyosarcoma, low-grade and high-grade endometrial stromal sarcoma, adenosarcoma, and undifferentiated sarcoma. Clinical presentation is often nonspecific and can lead to delayed diagnosis.

View Article and Find Full Text PDF

Chitosan and its derivatives are interesting biopolymers for different field of analytical chemistry, especially in separation techniques. The present study was aimed at testing chitosan water soluble derivatives as dynamic coating agents for application to capillary electrophoresis. In particular, chitosan was modified following three different chemical reactions (nucleophilic substitution, reductive amination, and condensation) to introduce differences in charge and steric hindrance, and to assess the effect of these physico-chemical properties in capillary electrophoresis.

View Article and Find Full Text PDF

This study aims to learn more about the structure of densified silica with focus on the metamict-like silica phase (density = 2.26 g/cm) by examining the formation of E' point defects and interstitial molecular oxygen O by 2.5 MeV electron irradiation.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to create and validate a radiomic model using [F]FDG PET scans to predict overall survival in patients with head and neck squamous cell carcinoma (HNSCC).
  • It involved analyzing two datasets of patients treated with afatinib, extracting radiomic features from their PET scans, and using these features alongside clinical data to develop a Cox regression model for predictions.
  • The radiomic model showed better performance in predicting survival than clinical models alone, suggesting that combining radiomic features with clinical variables could enhance predictions, though further validation with larger patient groups is needed.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how baseline [F]FDG-PET/CT scans can predict the effectiveness of immunotherapy and overall survival in lung cancer (LC) and malignant melanoma (MM) patients.
  • Conducted over several months in 2021, the study included 278 patients who underwent PET/CT scans shortly before starting treatment and were monitored for at least a year.
  • Results showed that in lung cancer patients, higher [F]FDG uptake often indicated a lack of response to therapy, while there was only a weak link between PET/CT findings and therapy outcomes in melanoma patients.
View Article and Find Full Text PDF

Case: A 21-year-old collegiate baseball pitcher presented with transient lateral arm pain and wrist extension weakness after pitching more than 1 inning. Physical examination was unremarkable at rest. Ultrasound-guided injection of the radial nerve at the level of the lateral intramuscular septum improved his symptoms.

View Article and Find Full Text PDF

Background: Few studies have addressed whether robotic-assisted total knee arthroplasty (RA-TKA) significantly impacts functional outcomes. This study was conducted to determine whether image-free RA-TKA improves function compared to conventional total knee arthroplasty (C-TKA), performed without the utilization of robotics or navigation, using the Minimal Clinically Important Difference (MCID) and Patient Acceptable Symptom State (PASS) as measures of meaningful clinical improvement.

Methods: A multicenter propensity score-matched retrospective study was conducted of RA-TKA using an image-free robotic system and C-TKA cases at an average follow-up of 14 months (range, 12 months to 20 months).

View Article and Find Full Text PDF

Aim: To examine the role of [18F]FDG PET/CT for assessing response to immunotherapy in patients with some solid tumors.

Methods: Data recorded in a multicenter ( = 17), retrospective database between March and November 2021 were analyzed. The sample included patients with a confirmed diagnosis of a solid tumor who underwent serial [18F]FDG PET/CT (before and after one or more cycles of immunotherapy), who were >18 years of age, and had a follow-up of at least 12 months after their first PET/CT scan.

View Article and Find Full Text PDF

Riders’ asymmetry may cause back pain in both human and equine athletes. This pilot study aimed at documenting in a simple and quick way asymmetry in riders during a simulation of three different riding positions on wooden horseback using load cells applied on the stirrup leathers and identifying possible associations between riders’ asymmetry and their gender, age, level of riding ability, years of riding experience, riding style, motivation of riding, primary discipline and handedness. After completing an interview to obtain the previously mentioned information, 147 riders performed a standardized test on a saddle fixed on a wooden horseback-shaped model.

View Article and Find Full Text PDF

Background: Autologous anti-CD19 chimeric antigen receptor (CAR) T-cell therapy is an effective treatment for approximately 40% of relapsed/refractory large B cell lymphomas (LBCL), and early identification of patients at risk for relapse or progression after CAR T-cell therapy represents a clinical need.

Methods: The authors conducted a single-center prospective study on 47 relapsed/refractory LBCL receiving CAR T-cell therapy to evaluate the prognostic value of baseline and after infusion F-fluorodeoxyglucose positron emission tomography (PET)-computed tomography. Qualitative and quantitative metabolic parameters were evaluated before lymphodepletion, at day 30 and 90 post-infusion.

View Article and Find Full Text PDF

Background: Cyclic fasting or calorie-restricted, low-carbohydrate, low-protein diets, collectively referred to as fasting-mimicking diets (FMDs), demonstrated additive or synergistic antitumour effects when combined with chemotherapy, targeted therapies, or immunotherapy in several preclinical in vivo models, including murine models of breast cancer, lung cancer, and colorectal cancer. However, no data on the antitumour efficacy of cyclic FMD in patients with cancer have been published so far. Here, we aim at reporting on patients with advanced cancer achieving complete and long-lasting tumour remissions with cyclic FMD in combination with standard anticancer therapies in the context of the phase Ib NCT03340935 trial.

View Article and Find Full Text PDF

Objectives: Aging is associated with low-grade chronic inflammation contributing to a decline in lung performance. The Dietary Inflammatory Index (DII) has been introduced to evaluate the inflammatory potential of different diets, which may further affect individuals' respiratory function. This study investigates the association between DII and lung performance in older adults.

View Article and Find Full Text PDF

Canine monocytic ehrlichiosis (CME) is one of the most important tick-borne diseases worldwide, with multisystemic presentations. Immune dysregulation has been proposed as the primary mechanism involved in its pathogenesis and in tissue injury in dogs with CME. Experimental infection of German Shepherd dogs in the present study demonstrated that CME caused marked pathological changes in their lymph nodes and spleen, and also gave rise to mononuclear infiltration in organs and tissues.

View Article and Find Full Text PDF

Objective: The objective of this report is to describe a SARS-CoV-2 protocol and subsequent positivity rate for athletes and staff participating in combat sports events.

Background: Combat sports are among the most challenging to protect against the transmission of communicable diseases. Sports neurologists are often called on to take a leadership role in the safe management of these events.

View Article and Find Full Text PDF

Background and objective Gastroesophageal reflux disease (GERD) is one of the most common gastrointestinal diseases worldwide. It causes an unpleasant effect on patients' lives and may lead to serious complications resulting in a significant burden on healthcare systems. Despite being a common gastrointestinal disease, very few studies have been conducted on the condition in Saudi Arabia; and there has never been a study to estimate the prevalence of GERD in the Al-Qunfudah Governorate.

View Article and Find Full Text PDF

Many tissue-specific stem cells maintain the ability to produce multiple cell types during long periods of non-division, or quiescence. FOXO transcription factors promote quiescence and stem cell maintenance, but the mechanisms by which FOXO proteins promote multipotency during quiescence are still emerging. The single FOXO ortholog in C.

View Article and Find Full Text PDF

Background: Cervicofacial burn (CB) is a unique type of burn, involving the lateral part of the face, neck and chest region with significant skin contractures. Temporomandibular joint (TJ) pain and orofacial myalgia (OM) are the major problems in physiotherapy context to treat. Laser is commonly used as an adjunct therapy in painful conditions.

View Article and Find Full Text PDF

Transitions in microbial community structure in response to increasing ammonia concentrations were determined by monitoring mesophilic anaerobic digesters seeded with a predominantly acetoclastic methanogenic community from a sewage sludge digester. Ammonia concentration was raised by switching the feed to source segregated domestic food waste and applying two organic loading rates (OLR) and hydraulic retention times (HRT) in paired digesters. One of each pair was dosed with trace elements (TE) known to be essential to the transition, with the other unsupplemented digester acting as a control.

View Article and Find Full Text PDF

Background And Aims: COPD is a common chronic condition in older age that impacts on daily activities and quality of life. Previous studies suggest that magnesium deficit in COPD patients affects bronco-obstruction, inflammation, and physical performance. We investigated whether oral magnesium supplementation in stable-phase COPD patients improves lung function, physical performance, and quality of life.

View Article and Find Full Text PDF

Background: According to published data, radiomics features differ between lesions of refractory/relapsing HL patients from those of long-term responders. However, several methodological aspects have not been elucidated yet.

Purpose: The study aimed at setting up a methodological framework in radiomics applications in Hodgkin's lymphoma (HL), especially at (a) developing a novel feature selection approach, (b) evaluating radiomic intra-patient lesions' similarity, and (c) classifying relapsing refractory (R/R) vs non-(R/R) patients.

View Article and Find Full Text PDF