Search results for "Proa"
showing 10 items of 1834 documents
A Model‐Based Workflow to Benchmark the Clinical Cholestasis Risk of Drugs
2021
We present a generic workflow combining physiology-based computational modeling and in vitro data to assess the clinical cholestatic risk of different drugs systematically. Changes in expression levels of genes involved in the enterohepatic circulation of bile acids were obtained from an in vitro assay mimicking 14 days of repeated drug administration for 10 marketed drugs. These changes in gene expression over time were contextualized in a physiology-based bile acid model of glycochenodeoxycholic acid. The simulated drug-induced response in bile acid concentrations was then scaled with the applied drug doses to calculate the cholestatic potential for each compound. A ranking of the cholest…
Psychological adjustment of Spanish adolescents and their parents during COVID- 19 lockdown: A mixed method approach
2021
Previous literature on the psychological impact of COVID-19 has shown a direct relationship between family conflicts and psychological distress among parents and their children during the domestic lockdown and social isolation; but there are also opportunities to enhance family bonding, encourage collective problem-solving and improve personal relationships. This study aimed to explore psychological adjustment processes of Spanish adolescents and their parents during the first month of lockdown by analyzing their narratives, perceived outcomes, protection and risk factors. A total of 142 people agreed to participate in this study. Of all participants, 61 were adolescents (M = 13.57; SD = 1.…
Identification of Three Particular Morphological Phenotypes in Sporadic Thoracic Aortic Aneurysm: Phenotype III As Sporadic Thoracic Aortic Aneurysm …
2014
Abstract Aging has a striking impact on the heart and the vascular system, particularly on the large elastic arteries (i.e., aorta), resulting in a multitude of changes at different structural and functional levels. As result, medial degeneration (MD) occurs. A characteristic example of MD is sporadic thoracic aortic aneurysm (S-TAA), whose patho-physiological mechanisms remain unclear. In this study, typical MD morphological phenotypes were researched in S-TAA cases and control aorta specimens by histopathological and immunohistochemical analyses. Three phenotypes (I, II, and III) were detected, but mainly the phenotype III was observed. Elevated cystic MD, plurifocal medial apoptosis, and…
Lysosomal storage disorder in non-immunological hydrops fetalis (NIHF) - more common than assumed? Report of four cases with transient NIHF and a rev…
2012
Abstract Background Lysosomal storage disorders (LSD) are a rare cause of non immunological hydrops fetalis (NIHF) and congenital ascites. The reported incidence is about 1%. The incidence of idiopathic NIHF is estimated to be about 18%. Patients and methods We report four cases with transient hydrops fetalis resulting from LSD and performed a literature review on LSD with NIHF and congenital ascites in combination. Results At present, 12 different LSDs are described to be associated with NIHF or congenital ascites. Most patients had a family history of NIHF, where the preceding sibling had not been examined. A diagnostic approach to the fetus with NIHF due to suspected LSD either in utero …
Surgical management of pleomorphic adenoma of parotid gland in elderly patients: Role of morphological features
2014
AbstractThe neoplasms of the salivary glands account for 2% of head and neck tumors and the most common form is the Pleomorphic adenoma (PA). Parotid gland is affected from 80% to 90% of cases. In elderly these tumors occur mostly in females. These benign tumors are composed of epithelial and myoepithelial cells that are arranged with various morphological patterns and subtypes. The classification of these tumors is also based on the amount and nature of the stroma. In literature there is an almost complete consensus that, in the major salivary glands, PAs are enclosed by a layer of fibrous tissue often called “capsule” but there is disagreement about the form, extension and thickness of th…
Acrosin, the peculiar sperm-specific serine protease.
1991
The sperm enzyme acrosin has long been known as one of the key enzymes in the mammalian fertilization process. Elucidation of primary structures of preproacrosin from various species have allowed a deeper insight into the structural organization and the complex evolution of the sperm proteinase acrosin. In addition to the typical elements of serine proteases, the acrosin molecule possesses one novel domain that might convey DNA-binding properties.
Blood metal levels after minimally invasive repair of pectus excavatum
2021
Abstract OBJECTIVES Minimally invasive repair of pectus excavatum (MIRPE) is the most popular surgical approach for paediatric patients with pectus excavatum. A substernal stainless still bar is inserted and left in place for 3 years and then removed. Our goal was to investigate blood metal levels after MIRPE and to correlate them with surgical details, such as the numbers of bars and stabilizers and the length of time the bar was in place. METHODS Blood levels of iron, chromium, manganese, molybdenum and nickel were analysed in 130 teenagers (108 boys and 22 girls) who had MIRPE using inductively coupled plasma mass spectrometry. A total of 62 patients were operated on using MIRPE (study…
Kinetic experiments on the synergistic effect of NADH on microsomal drug oxidation.
1974
Abstract1. The synergistic effect of NADH on the NADPH-dependent mixed function oxidation of p-nitroanisole and hexobarbital can be measured both photometrically and by following the substrate-induced oxygen consumption. The increase in reaction rate is about 50% and lasts as long as NADH is present in the microsomal suspension.2. The oxidation of added NADH is increased by hexobarbital, ethylmorphine and SKF 525-A. Lineweaver-Burk transformation of the NADH oxidation rates yields straight lines for xenobiotic substrates suggesting Michaelis constants similar to those obtained from metabolic experiments. NADH oxidation in the absence of NADPH is about half as rapid as in its presence.3. Som…
Understanding aroma release from model cheeses by a statistical multiblock approach on oral processing
2013
For human beings, the mouth is the first organ to perceive food and the different signalling events associated to food breakdown. These events are very complex and as such, their description necessitates combining different data sets. This study proposed an integrated approach to understand the relative contribution of main food oral processing events involved in aroma release during cheese consumption. In vivo aroma release was monitored on forty eight subjects who were asked to eat four different model cheeses varying in fat content and firmness and flavoured with ethyl propanoate and nonan-2-one. A multiblock partial least square regression was performed to explain aroma release from the…
Long-term clinical and radiographic outcomes and patient satisfaction after adult spinal deformity correction
2018
Background and Aims: Adult spinal deformity surgery has increased with the aging population and modern surgical approaches, although it has high complication and reoperation rates. The permanence of radiographic correction, mechanical complications, predictive factors for poor patient-reported outcomes, and patient satisfaction were analyzed. Material and Methods: A total of 79 adult patients were retrospectively analyzed at baseline and 1–9 years after adult spinal deformity correction between 2007 and 2016. Patient-reported outcomes (Oswestry Disability Index, visual analog scale, and Scoliosis Research Society–30 scores), changes in radiographic alignment, indications for reoperation, pr…