Much historic work has focused on establishing geographical and ecological rules that broadly explain patterns in size variation. We examined geographic variation in Spotted Hyena skull size using geometric morphometrics and spatial statistics. We quantified size variation and sexual size dimorphism of the skull, and evaluated the influence of temperature, precipitation, land cover type, and population density on skull size.
View Article and Find Full Text PDFThough studies in animals and humans link the gut microbiota to brain development and control of behavior, little research has examined this connection in healthy infants. This prospective study could determine associations between infant gut microbiota at 3 months, and infant temperament at 9 months, in a prospective pregnancy cohort (Michigan Archive for Research on Child Health; = 159). Microbiota profiling with 16S rRNA gene sequencing was conducted on fecal samples obtained at 3 months of age.
View Article and Find Full Text PDFA 26-year-old patient in France who worked as a butcher sought care initially for erythema multiforme. Clinical examination revealed a nodule with a crusty center, which upon investigation appeared to be an orf nodule. Diagnosis was confirmed by PCR.
View Article and Find Full Text PDFObjective: We describe a rare case of pseudohyponatremia in the setting of hypercholesterolemia caused by cholestasis due to metastatic liver disease and provide a review of the published cases in the literature.
Case Report: We report a case of pseudohyponatremia in a 60-year-old man with rectal cancer with extensive metastasis to the liver. While assessing the patient for hyponatremia, extremely elevated serum cholesterol with normal serum osmolality was detected leading to the diagnosis of pseudohyponatremia.
In Parkinson's disease, reaching movements are conditioned by motor planning and execution deficiency. Recently, rehabilitation, aided by high technological devices, was employed for Parkinson's disease. We aimed to (1) investigate the changes in the upper limb motor performances in a sample of a patient with Parkinson's disease after a weightless training, with a passive exoskeleton, in an augmented-feedback environment; (2) highlight differences by motor parameters (performance, speed, and movement accuracy) and by type of movement (simple or complex); and (3) evaluate movement improvements by UPDRS II-III.
View Article and Find Full Text PDFIn the version of this article initially published, the label over the bottom schematic in Fig. 1a was "pH > 5.0"; it should have been "pH < 5.
View Article and Find Full Text PDFPancreatic ductal adenocarcinoma (PDA) was responsible for ~ 44,000 deaths in the United States in 2018 and is the epitome of a recalcitrant cancer driven by a pharmacologically intractable oncoprotein, KRAS. Downstream of KRAS, the RAF→MEK→ERK signaling pathway plays a central role in pancreatic carcinogenesis. However, paradoxically, inhibition of this pathway has provided no clinical benefit to patients with PDA.
View Article and Find Full Text PDFBackground: Oesophageal cancer (OC) survival rates have improved since the widespread adoption of neoadjuvant chemoradiation therapy (NACRT) followed by oesophagectomy (trimodality therapy). Unfortunately, the overall prognosis for patients with locally advanced disease remains poor. In this study, we sought to assess the effect of adjuvant chemotherapy (AC) in patients treated with trimodality therapy.
View Article and Find Full Text PDFBackground: Extracorporeal Shock Wave Therapy (ESWT) is effective in the treatment of calcific tendinopathy of the rotator cuff, eliciting an analgesic/anti-inflammatory action and promoting tissue regeneration. Kinesio taping (KT), another recently-introduced rehabilitative tool, exerts an analgesic and biomechanical action on joints and muscles. ESWT and KT may have a synergic effect when used in combination, but the effectiveness of the association has not been established.
View Article and Find Full Text PDFClinical pharmacists are important contributors to the care of patients with cancer; it is therefore critical for oncology clinical pharmacists to stay current with new anticancer therapies. This review summarizes the epidemiology and pathogenesis of non-small cell lung cancer, including the most common genetic alterations, as well as the mechanism of action, clinical development, pharmacodynamics and pharmacokinetics of the anaplastic lymphoma kinase inhibitor ceritinib for the treatment of patients with anaplastic lymphoma kinase-positive non-small cell lung cancer. Targeted therapies based on the presence of specific mutations are an important development in the treatment of non-small cell lung cancer.
View Article and Find Full Text PDFThis article comments on the January 2015 cover of the American Psychologist (Vol. 70, Issue 1). The caption linked to a picture of a wintry mountain scene said "Squaw Valley Meadow.
View Article and Find Full Text PDFMigration of melamine into foods from melamine tableware has been object of recent Rapid Alert System for Food and Feed (RASFF) notifications. In this context, a rapid and sensitive desorption electrospray ionization-high resolution mass spectrometry (DESI-HRMS) method was developed and validated for the determination of melamine migration from plastic materials. The migration test was performed using acetic acid 3% (w/v) as food simulant.
View Article and Find Full Text PDFThe first crystal structure of a ternary redox protein complex was comprised of the enzyme methylamine dehydrogenase (MADH) and two electron transfer proteins, amicyanin and cytochrome c-551i from Paracoccus denitrificans [Chen et al. Science 1994, 264, 86-90]. The arrangement of the proteins suggested possible electron transfer from the active site of MADH via the amicyanin copper ion to the cytochrome heme iron, although the distance between the metals is large.
View Article and Find Full Text PDFFood Addit Contam Part A Chem Anal Control Expo Risk Assess
April 2010
A problem concerning significant amounts of nicotine in dried wild mushrooms (mainly Boletus edulis from China) has been reported to the European Commission. As a consequence, the European Food Safety Authority (EFSA) proposed temporary maximum residue levels (MRLs) of 0.036 mg kg(-1) for fresh wild mushrooms and 1.
View Article and Find Full Text PDFFood Addit Contam Part A Chem Anal Control Expo Risk Assess
July 2009
As shown previously, the conventional testing procedure for simulating long-term migration from the gaskets of metal closures into oily foods does not adequately reflect reality. It appears to be impossible to accelerate migration to the extent that the situation at the end of the shelf life of a product can be anticipated in a few days or weeks. Therefore, we investigated whether long-term migration could be extrapolated from migration rates determined for new lids.
View Article and Find Full Text PDFMethylamine can be used as the sole carbon source of certain methylotrophic bacteria. Methylamine dehydrogenase catalyzes the conversion of methylamine into formaldehyde and donates electrons to the electron transfer protein amicyanin. The crystal structure of the complex of methylamine dehydrogenase and amicyanin from Paracoccus versutus has been determined, and the rate of electron transfer from the tryptophan tryptophylquinone cofactor of methylamine dehydrogenase to the copper ion of amicyanin in solution has been determined.
View Article and Find Full Text PDFMature beta-hexosaminidase A has been found associated to the external leaflet of plasma membrane of cultured fibroblasts. The plasma membrane association of beta-hexosaminidase A has been directly determined by cell surface biotinylation followed by affinity chromatography purification of the biotinylated proteins, and by immunocytochemistry. The immunological and biochemical characterization of biotinylated beta-hexosaminidase A revealed that the plasma membrane associated enzyme is fully processed, suggesting its lysosomal origin.
View Article and Find Full Text PDFVibrio cholerae is the etiological agent of cholera. V. cholerae serogroup O1 had been, until 1992, the only serogroup responsible for large epidemics and pandemics of cholera.
View Article and Find Full Text PDFThe production of active Arylsulfatase A is a key step in the development of enzyme replacement therapy for Metachromatic Leukodystrophy. To obtain large amounts of purified Arylsulfatase A for therapeutic use, we combined a retroviral expression system with a versatile and rapid purification protocol that can easily and reliably be adapted to high-throughput applications. The purification method consists of an initial ion-exchange DEAE-cellulose chromatography step followed by immuno-affinity purification using a polyclonal antibody against a 29-mer peptide of the Arylsulfatase A sequence.
View Article and Find Full Text PDFThe therapeutic potential of bone marrow-derived stromal cells for the therapy of Tay-Sachs disease is primarily related to the restoration of their own GM2 ganglioside storage. With this aim, we produced bone marrow-derived stromal cells from the adult Tay-Sachs animal model and transduced them with a retroviral vector encoding for the alpha-subunit of the lysosomal enzyme beta-hexosaminidase A (E.C.
View Article and Find Full Text PDFIt is believed that the lysosomal glycohydrolase beta-N-acetylhexosaminidase plays a part in several important processes of reproduction and it has been postulated that this enzyme is subject to hormonal regulation. During pregnancy, activity levels of the enzyme are strongly increased in both human and rat serum. However, little is known about the expression of this enzyme in the female reproductive apparatus and there is no evidence linking the production of hexosaminidase alpha- and beta-subunits to pregnancy.
View Article and Find Full Text PDFUnlabelled: Impact of shiftwork on sleep and psychological health.
Objective: The purpose of the present study was to evaluate the impact of a rapid shiftwork system on sleep parameters and on psychopathological status among a sample of nurses. We hypothesize that in this type of shiftwork system, the rapid and continuous rotation of shifts doesn't lead to a lasting alteration of circadian rhythm but to a transitory increase of psychological disturbances after the night shift.
Seventy-four sporadic ovarian tumors were studied for loss of heterozygosity (LOH) and microsatellite instability (MI) with 20 polymorphic markers on chromosome 17 and at least I marker on every other chromosome. Additionally, activation of the K-ras oncogene was examined through mutation analysis of codon 12. A majority of the tumors analyzed were low grade and/or of the mucinous histologic type.
View Article and Find Full Text PDFThe response to an aerosol preparation containing 100 micrograms fenoterol and 40 micrograms ipratropium bromide per puff (Duovent) was compared with a placebo in 18 asthmatic patients in a double-blind cross-over fashion. We measured changes in lung function tests and pulse rate. Duovent induced a significant improvement in lung tests with statistical relevance for VEMS and Raw in comparison with placebo.
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