Front Cell Dev Biol
August 2023
Bone metastasis is one of the causes that mainly decrease survival in patients with advanced breast cancer. Therefore, it is essential to find prognostic markers for the occurrence of this type of metastasis during the early stage of the disease. Currently, cancer-associated fibroblasts, which represent 80% of the fibroblasts present in the tumor microenvironment, are an interesting target for studying new biomarkers and developing alternative therapies.
View Article and Find Full Text PDFPurpose: Dendritic cells (DCs) are the most potent antigen-presenting cells that play a major role in initiating the antitumor immune response in different types of cancer. However, the prognostic significance of the accumulation of these cells in human early breast tumors is not totally clear. The aim of this study is to evaluate the prognostic relevance of CD1a( +) and CD83( +) dendritic cells in early breast cancer patients.
View Article and Find Full Text PDFPurpose: To describe the variability of the radial artery (RA) diameters at 2 levels, proximal (pRA), within 2 cm to the styloid process, and distal (dRA) at the snuff box, both eligible accesses for percutaneous approach, and to correlate these diameters with population features.
Methods: A total of 700 patients (377 females, 323 males) have been enrolled from July 2018 to March 2019. The diameters of left and right RA were measured using ultrasound (US) examination.
The most frequent pancreatic cysts in patients of developmental age are pseudocysts, neoplastic cysts, posttraumatic cysts, and parasitic cysts. Retention cysts, duplication cysts, and congenital cysts are called true cysts. Among the true cysts, congenital cysts are very rare and include 1% of all pancreatic cysts.
View Article and Find Full Text PDFMultiple sclerosis (MS) is an immune-mediated central nervous system disease mostly affecting young people. Multiple sclerosis and other neurodegenerative and white matter disorders involve oligodendrocyte (OL) damage and demyelination. Therefore, elucidating the signaling pathways involved in the remyelination process through the maturation of OL progenitor cells (OPCs) may contribute to the development of new therapeutic approaches.
View Article and Find Full Text PDFEagle's syndrome (ES) refers to symptomatic elongation of the ossified styloid process. A styloid process greater than 2.5 cm in length should be considered abnormal; however, an elongated styloid process is not sufficient for a diagnosis of ES; only an abnormal styloid process in association with symptoms can confirm the syndrome.
View Article and Find Full Text PDFUnlabelled: Angiogenesis is a key process for metastatic progression. While it has been established that the evaluation of breast tumoral microvessel density by CD105 marker is a potential prognostic parameter, its evaluation by CD146 marker has been poorly studied.
Aim: The purpose of this study was to compare the prognostic value of intra-tumoral microvessel density assayed by CD105 and CD146 in early breast cancer patients.
We retrospectively analyzed the findings of a prospective cohort of 75 children referred for thyroid nodules between 2008 and 2013. Prevalence of papillary differentiated thyroid carcinoma was 18.7%.
View Article and Find Full Text PDFSeveral studies have confirmed that the breast tumor microenvironment drives cancer progression and metastatic development. The aim of our research was to investigate the prognostic significance of the breast tumor microenvironment in untreated early breast cancer patients. Therefore, we analyzed the association of the expression of α-SMA, FSP, CD105 and CD146 in CD34-negative spindle-shaped stromal cells, not associated with the vasculature, in primary breast tumors with classical prognostic marker levels, metastatic recurrence, local relapse, disease-free survival, metastasis-free survival and the overall survival of patients.
View Article and Find Full Text PDFBackground: Despite advances in the study of breast cancer (BC), it remains the second leading cause of mortality among women. BC is a heterogeneous system, mainly composed of tumor epithelial cells (TEpCs) and stromal cells (SCs); the interaction through the ligands and their receptors (Rs) plays a major role in BC progression. The aim of the present study was to evaluate the association between ligands, such as osteoprotegerin, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), receptor activator of nuclear factor kappa B ligand (RANKL), stromal cell-derived factor (SDF)-1, interleukin (IL)-6, macrophage colony stimulating factor, chemokine (C-C motif) ligand-2 (CCL-2), and their Rs in TEpC and spindle-shaped SCs not closely associated with the vasculature.
View Article and Find Full Text PDFIntroduction: We retrospectively assessed the incidence of congenital hypothyroidism (CH) detected through our neonatal screening program between 1997 and 2010. We describe the diagnostic characteristics of the detected population and verify the impact of a TSH cutoff (CO) change.
Patients And Methods: Screening was based on TSH determination on dried blood spot on filter paper samples (IFMA) using a 15 mU/l blood CO until 12/2002 (P1) and 10 mU/l thereafter (P2).
Context: Pheochromocytomas and paragangliomas (pheo/pgl) are neuroendocrine tumours derived from chromaffin cells. Although mostly benign, up to 26% of pheo/pgl will undergo malignant transformation. Reliable histological signs to differentiate benign pheo/pgl from malignant tumours are currently lacking.
View Article and Find Full Text PDFContext: Little is known about the neuroendocrine effects of androgens on the GnRH-LH unit in females.
Objective: Our objective was to evaluate androgen negative feedback on the GnRH-LH axis in eumenorrheic and polycystic ovary syndrome (PCOS) adolescents.
Design And Setting: We conducted a prospective, longitudinal, randomized, double-blind study at a pediatric endocrinology clinical research center.
Aim: To determine the association between overweight children and a) other components of the mothers' metabolic syndrome, such as body mass index (BMI), waist circumference (WC), HDL-cholesterol, triglycerides, glucose, HOMA-IR, blood pressure (BP), and age; and b) the mothers' perception of their children's overweight.
Methods: Six hundred and twenty children (297 M) aged 9 +/- 2 years and their mothers aged 37.7 +/- 7 years were examined between April and August 2006.
A study was carried out to investigate accelerated forgetting of new verbal and visual material in participants complaining of memory loss, individuals with Mild Cognitive Impairment(MCI) and controls. All groups were evaluated with a standard neuropsychological battery and two tests of delayed recall 6 weeks apart for the experimental tasks.Individuals with memory complaints,but not MCI, performed normally compared to controls on immediate and 30 minute recall,but showed a striking impairment in verbal and visual memory after 6 weeks.
View Article and Find Full Text PDFArch Pediatr Adolesc Med
December 2007
Objective: To determine the association between metabolic syndrome (MS) components in 620 children and their mothers.
Design: Cross-sectional assessment.
Setting: Three public elementary schools in Buenos Aires, Argentina.
Objective: The metabolic syndrome is associated with insulin resistance in adults. We defined pediatric metabolic syndrome using criteria analogous to Adult Treatment Panel III. The purpose of this study was to determine whether these criteria are reliable for insulin resistance in children.
View Article and Find Full Text PDFObjective: This study was designed to assess whether waist circumference can predict metabolic syndrome abnormalities in primary schoolchildren.
Research Design And Methods: Of 5,103 children (2,526 males) 4-13 years old who underwent anthropometric measurements, 530 had more extensive testing. Body mass index (BMI), waist circumference, and blood pressure were determined in all subjects.
Aim: To determine prevalence of H pylori infection in symptomatic children in Buenos Aires, Argentina, and to investigate factors associated with H pylori positivity.
Methods: A total of 395 children with upper gastrointestinal symptoms referred to the Gastroenterology Unit of the Children Hospital "Sor Maria Ludovica" were evaluated for the presence of H pylori by the (13)C-Urea Breath Test ((13)C-UBT). A questionnaire was applied to the recruited population.
Objective: Current recommendations for treatment of Helicobacter pylori infection include a proton pump inhibitor in combination with two antibiotics. We evaluated the potential activity of a probiotic food as an adjuvant to antibiotic triple therapy for eradication of H. pylori infection in children from Buenos Aires, Argentina.
View Article and Find Full Text PDFStructural brain imaging and neuropsychological data implicate the orbital aspects of prefrontal cortex in the developing neuropathology of fvFTD. Damage to this region is associated with deficient performance on laboratory tasks assessing theory of mind (ToM) and affective decision-making (DM), but the relationship between these two capacities in patients with prefrontal cortex dysfunction is unclear. We studied a group of patients with early/mild fvFTD (n=20) and a group of matched normal controls (n=10) on the Iowa gambling task (IGT) of affective decision-making, and the "reading the mind in the eyes" (MIE) and "faux pas" (FP) tests of ToM.
View Article and Find Full Text PDFArch Pediatr Adolesc Med
August 2005
Objective: To determine in children the association between waist circumference (WC) and insulin resistance determined by homeostasis modeling (HOMA-IR) and proinsulinemia and components of the metabolic syndrome, including lipid profile and blood pressure (BP).
Methods: Eighty-four students (40 boys) aged 6 to 13 years and matched for sex and age underwent anthropometric measurements; 40 were obese; 28, overweight; and 16, nonobese. Body mass index (BMI), WC, BP, and Tanner stage were determined.
A high prevalence of type 2 diabetes mellitus in patients with hepatitis C virus (HCV)-related chronic liver diseases has been reported in numerous studies. Other studies failed to confirm this observation. We have studied the relative prevalence of type 2 diabetes mellitus in two groups of patients respectively presenting with HCV-related chronic liver disease (224 patients) and chronic liver diseases of other etiologies (30 hepatitis B virus-HBV-related chronic liver disease, 22 alcoholic liver cirrhosis), in order to confront them.
View Article and Find Full Text PDFSeveral factors are involved in the selective activation of Th1 or Th2 cells, such as different physical characteristics of antigens and the type of antigen-presenting cells involved in the immune response, among others. To study the influence of a particulate antigen on Th1/Th2 cell differentiation during the immune response to another antigen, we analysed the immune response to tetanus toxoid (soluble antigen) in BALB/c mice immunized with one of the three following vaccines: tetanus and diphtheria toxoids (DT), or DT associated with whole-cell Bordetella pertussis or its soluble antigens (DTPw and DTPa, respectively). Similar total antibody levels were observed for all vaccines.
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