: Triple-negative breast cancer (TNBC) is the most challenging molecular subtype of breast cancer (BC) in clinical practice, associated with a worse prognosis due to limited treatment strategies and its insensitivity to conventional drugs. Zinc is an important trace element for homeostasis, and its Schiff base metal complexes have shown promise in treating advanced tumors. In this study, four new heteroleptic Zn(II) complexes (-) with Schiff bases were synthesized, characterized, and evaluated for their activity in BC cells.
View Article and Find Full Text PDFObjective: Spinal cord injury (SCI) is a serious condition that can lead to partial or complete paraplegia or tetraplegia. Currently, there are few therapeutic options for these conditions, which are mainly directed toward the acute phase, such as surgical intervention and high-dose steroid administration. Mesenchymal stromal cells (MSC) have been shown to improve neurological function following spinal cord injury.
View Article and Find Full Text PDFNon-alcoholic fatty liver disease (NAFLD) is a rising global burden, affecting one in four adults. Despite the increasing prevalence of NAFLD, the exact cellular and molecular mechanisms remain unclear, and effective therapeutic strategies are still limited. In vitro models of NAFLD are critical to understanding the pathogenesis and searching for effective therapies; thus, we evaluated the effects of free fatty acids (FFAs) on NAFLD hallmarks and their association with the modulation of Annexin A2 (ANXA2) and Keratin 17 (KRT17) in HepG2 cells.
View Article and Find Full Text PDFPurpose: Patients with post prostatectomy incontinence (PPI) seem to have different needs. Therefore, device post-operative readjustability may be a beneficial feature in PPI management, even though it lacks study support. The purpose of this study is to describe our surgical technique for male sling (MS) implantation, assess outcomes, and the impact of readjustability.
View Article and Find Full Text PDFDanionella cerebrum has recently been proposed as a promising model to investigate the structure and function of the adult vertebrate brain, including the development of vocal-auditory neural pathways. This genetically tractable and transparent cypriniform is highly vocal, but limited information is available on its acoustic behavior and underlying biological function. Our main goal was to characterize the acoustic repertoire and diel variation in sound production of D.
View Article and Find Full Text PDFAim: Assessment of the fate of microbial contamination driven from treated wastewater disposal at a highly productive zone on a South European coastal lagoon (Ria Formosa).
Methods And Results: Microbial indicators of contamination (Total coliforms, Escherichia coli, and Enterococci) were evaluated monthly during September 2018-September 2020 at three study areas (Faro, Olhão, and Tavira) under different wastewater discharge flows and hydrodynamic conditions. Additional data on E.
The growth of human populations has been driving an unprecedent and widespread increase in marine traffic, posing a real threat to marine biodiversity. Even though we are now aware of the negative effects of shipping noise exposure on fish, information about the impact on their early life stages continues to lack. Meagre (Argyrosomus regius) is a vocal fish that uses estuaries with high levels of anthropogenic noise pollution as both breeding areas and nurseries.
View Article and Find Full Text PDFLab animals, such as Guinea pigs (), are crucial for scientific development, as they play an important role in the development and quality control chain of vaccines and drugs distributed by the Brazilian public health system. Investigating their biological and physiological parameters is fundamental to raise and keep these animals, so the handling of the facilities that hold them can be updated whenever new information comes up, with the well-being of the animals and alignment with the 3 Rs in mind. In the search for understanding reproductive aspects of Guinea pigs, the present study had the main goal of studying puberty by means of estrous cycle analysis in short-haired Guinea pigs.
View Article and Find Full Text PDFAnthropogenic noise is a growing threat to marine organisms, including fish. Yet very few studies have addressed the impact of anthropogenic noise on fish reproduction, especially in situ. In this study, we investigated the impacts of boat noise exposure in the reproductive success of wild Lusitanian toadfish (Halobatrachus didactylus), a species that relies on advertisement calls for mate attraction, using behavioural, physiological and reproductive endpoints.
View Article and Find Full Text PDFGanglioneuroma is a rare tumor derived from the neural crest that can occur in any sympathetic tissue. It corresponds to 0.3% to 2% of incidental adrenal tumors and <250 have been reported in the literature so far.
View Article and Find Full Text PDFIntroduction:: The optimal fit of a sling mesh for the treatment of stress urinary incontinence (SUI) in patients with associated pelvic organ prolapse (POP), or other predictors of sling failure, such as fixed urethra and previous incontinence surgery, can be challenging. The ideal point of tension may not be accurate, when the tape is too loose, incontinence persists. On the other hand, when the tape is too tight, urinary obstruction is produced.
View Article and Find Full Text PDFThe mechanical properties of the extracellular environment are interrogated by cells and integrated through mechanotransduction. Many cellular processes depend on actomyosin-dependent contractility, which is influenced by the microenvironment's stiffness. Here, we explored the influence of substrate stiffness on the proteome of proliferating undifferentiated human umbilical cord-matrix mesenchymal stem/stromal cells.
View Article and Find Full Text PDFPurpose: To investigate Occult Stress Urinary Incontinence (OSUI) using physical exam (PE) and urodynamics (UDS) in women with advanced pelvic organ prolapse (POP), and compare the two methods.
Methods: This study comprised 105 women with POP stage-III and -IV, according to POP quantification (POP-Q) system, evaluated prospectively between January and December 2015. A standard history, an incontinence questionnaire and PE were completed before the investigation of the OSUI that was performed in the supine and standing positions, reducing the prolapse using gauze and Cheron dressing forceps.
Cytotherapy
October 2017
Background Aims: The potential of cell therapies to improve neurological function in subjects with spinal cord injury (SCI) is currently under investigation. In this context, the choice of cell type, dose, route and administration regimen are key factors. Mesenchymal stromal cells (MSCs) can be easily obtained, expanded and are suitable for autologous transplantation.
View Article and Find Full Text PDFPurpose: To investigate the influence of the polymerization technique and the content of hydroxyl groups on the performance of new bile acid sequestrants based on PAMPMTA-co-PHEA (PAMPTMA: poly((3-acrylamidopropyl)trimethylammonium chloride); PHEA: poly(2-hydroxyethyl acrylate)) hydrogels.
Methods: PAMPMTA-co-PHEA hydrogels were prepared using either free radical polymerization or supplemental activator and reducing agent atom transfer radical polymerization. The chemical structure and composition of the hydrogels was confirmed by both FTIR and ssNMR.
Stem Cell Res Ther
November 2014
Introduction: The administration of stem cells holds promise as a potential therapy for spinal cord injury (SCI). Mesenchymal stem cells have advantages for clinical applications, since they can be easily obtained, are suitable for autologous transplantation and have been previously shown to induce regeneration of the spinal cord in experimental settings. Here we evaluated the feasibility, safety and potential efficacy of autologous transplantation of mesenchymal stem cells in subjects with chronic complete SCI.
View Article and Find Full Text PDFIn June 2008, the Canadian Association of Radiologists published its Standards for Irreversible Compression in Digital Diagnostic Imaging within Radiology (Canadian Association of Radiologists 2012). The study suggested that at low levels of compression there was no difference in diagnostic accuracy between uncompressed JPEG and JPEG 2000. There were two exceptions; CT neurological and CT body images resulted in lower rating of image quality (Koff et al.
View Article and Find Full Text PDFTwo new tripodal tris(3-hydroxy-4-pyridinone) hexadentate chelators-NTA(BuHP)(3) and NTP(PrHP)(3) (NTA=nitrilotriacetic acid, NTP=nitrilotripropionic acid, HP=hydroxypyridone)-have been developed and studied in solution for their iron and aluminium binding affinity, and also assayed in vivo for their capacity to remove metal from an animal model that is overloaded. These chelators are positional isomers, possessing identical general structures based on aminotricarboxylic acid skeletons attached to three bidentate 3-hydroxy-4-pyridinones (3,4-HPs), but differing in the position of the amide linkage along the chelating "arm". In spite of expected differences in the tripodal ligands, such as acidity and hydrogen-bonding networks, they share important properties, namely, a mild hydrophilic character (log P ca.
View Article and Find Full Text PDFArq Bras Cardiol
September 2003
Objective: To assess the frequency of cardiovascular risk factors in the rural community of Cavunge, in the Brazilian state of Bahia.
Methods: A cross-sectional study was carried out with 160 individuals (age>19 years) randomly drawn from those listed in the population census of the Cavunge Project. The following parameters were studied: arterial hypertension, dyslipidemia, diabetes, obesity, smoking, waist-hip ratio (WHR), physical activity, and overall cardiovascular risk classified according to the Framingham score.
Purpose: Hippocampal atrophy (HA) and signal changes, detected at magnetic resonance imaging, have been associated with intractable seizures. Such a relation has been established by tertiary centers, where the prevalence of more severe cases tends to be higher. We evaluated the clinical and imaging variables that may have relevance to seizure control in patients with mesial temporal lobe epilepsy (MTLE) and HA.
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