661 research outputs found
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Importance of Mobile Genetic Elements and Conjugal Gene Transfer for Subsurface Microbial Community Adaptation to Biotransformation of Metals
The overall goal of this project is to investigate the effect of mobile genetic elements and conjugal gene transfer on subsurface microbial community adaptation to mercury and chromium stress and biotransformation. Our studies focus on the interaction between the fate of these metals in the subsurface and the microbial community structure and activity
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Adaptation of subsurface microbial communities to mercury
This report gives information about the Adaptation of subsurface microbial communities to mercury
Use of on-line flow cytometry for the characterization of physiological behavior in stress conditions during the bioprocess
Peer reviewe
Effects of Water Stress, Defoliation and Crop Thinning on Vitis vinifera L. cv. Solaris Must and Wine Part II: 1HNMR Metabolomics
Proton nuclear magnetic resonance (1H NMR) metabolomics was employed to investigate
the impact of water deficit, defoliation, and crop thinning on the chemical composition of must and
wines from the cool-climate white grape variety Solaris. The obtained results show that viticultural
practices (defoliation and crop thinning) affected the amino acid and sugar content of Solaris must
and thereby the quality of the final wine—mainly in terms of compounds normally related to fruity
aroma (i.e., isopentanol), non-sugar sweetness (i.e., proline and glycerol), and alcohol content. The
content of tyrosol, a natural phenolic antioxidant with a high bioavailability, was increased in the final
wine by a combination of defoliation and crop thinning. The results of the metabolomics analysis
performed on the must and wine samples from the water stress experiment showed that short-term
water deficit significantly affected the concentration of several flavor-related compounds, including
glutamate, butyrate and propanol, of the organic acids lactate and fumarate, and of the phenolic
compounds caffeic acid and p-coumaric acid. ANOVA simultaneous component analysis showed
that the effect of water deficit accounted for 11% (p < 0.001) and 8% (p < 0.001) of the variability in the
metabolite concentrations in must and wines, respectively, while viticultural practices accounted for
38% (p < 0.001) and 30% (p < 0.001) of the metabolite variability in must and wines, respectivelyinfo:eu-repo/semantics/publishedVersio
European Consensus on the Management of Sensitized Kidney Transplant Recipients:A Delphi Study
An increasing number of sensitized patients awaiting transplantation face limited options, leading to fatalities during dialysis and higher costs. The absence of established evidence highlights the need for collaborative consensus. Donor-specific antibodies (DSA)-triggered antibody-mediated rejection (AMR) significantly contributes to kidney graft failure, especially in sensitized patients. The European Society for Organ Transplantation (ESOT) launched the ENGAGE initiative, categorizing sensitized candidates by AMR risk to improve patient care. A systematic review assessed induction and maintenance regimens as well as antibody removal strategies, with statements subjected to the Delphi methodology. A Likert-scale survey was distributed to 53 European experts (Nephrologists, Transplant surgeons and Immunologists) with experience in kidney transplant recipient care. A rate ≥75% with the same answer was considered consensus. Consensus was achieved in 95.3% of statements. While most recommendations aligned, two statements related to complement inhibitors for AMR prophylaxis lacked consensus. The ENGAGE consensus presents contemporary recommendations for desensitization and immunomodulation strategies, grounded in predefined risk categories. The adoption of tailored, patient-specific measures is anticipated to streamline the care of sensitized recipients undergoing renal allografts. While this approach holds the promise of enhancing transplant accessibility and fostering long-term success in transplantation outcomes, its efficacy will need to be assessed through dedicated studies.</p
Scandiatransplant acceptable mismatch program-10 years with an effective strategy for transplanting highly sensitized patients
In March 2009, the Scandiatransplant acceptable mismatch program (STAMP) was introduced as a strategy toward improving kidney allocation to highly sensitized patients. Patients with a transplantability scorePeer reviewe
Characterization of Microfibrillar-associated Protein 4 (MFAP4) as a Tropoelastin- and Fibrillin-binding Protein Involved in Elastic Fiber Formation
MFAP4 (microfibrillar-associated protein 4) is an extracellular glycoprotein found in elastic fibers without a clearly defined role in elastic fiber assembly. In the present study, we characterized molecular interactions between MFAP4 and elastic fiber components. We established that MFAP4 primarily assembles into trimeric and hexameric structures of homodimers. Binding analysis revealed that MFAP4 specifically binds tropoelastin and fibrillin-1 and -2, as well as the elastin cross-linking amino acid desmosine, and that it co-localizes with fibrillin-1-positive fibers in vivo. Site-directed mutagenesis disclosed residues Phe(241) and Ser(203) in MFAP4 as being crucial for type I collagen, elastin, and tropoelastin binding. Furthermore, we found that MFAP4 actively promotes tropoelastin self-assembly. In conclusion, our data identify MFAP4 as a new ligand of microfibrils and tropoelastin involved in proper elastic fiber organization
Relative and absolute cancer risks among Nordic kidney transplant recipients-a population-based study
Kidney transplant recipients (KTRs) have an increased cancer risk compared to the general population, but absolute risks that better reflect the clinical impact of cancer are seldom estimated. All KTRs in Sweden, Norway, Denmark, and Finland, with a first transplantation between 1995 and 2011, were identified through national registries. Post-transplantation cancer occurrence was assessed through linkage with cancer registries. We estimated standardized incidence ratios (SIR), absolute excess risks (AER), and cumulative incidence of cancer in the presence of competing risks. Overall, 12 984 KTRs developed 2215 cancers. The incidence rate of cancer overall was threefold increased (SIR 3.3, 95% confidence interval [CI]: 3.2-3.4). The AER of any cancer was 1560 cases (95% CI: 1468-1656) per 100 000 person-years. The highest AERs were observed for nonmelanoma skin cancer (838, 95% CI: 778-901), non-Hodgkin lymphoma (145, 95% CI: 119-174), lung cancer (126, 95% CI: 98.2-149), and kidney cancer (122, 95% CI: 98.0-149). The five- and ten-year cumulative incidence of any cancer was 8.1% (95% CI: 7.6-8.6%) and 16.8% (95% CI: 16.0-17.6%), respectively. Excess cancer risks were observed among Nordic KTRs for a wide range of cancers. Overall, 1 in 6 patients developed cancer within ten years, supporting extensive post-transplantation cancer vigilance.Peer reviewe
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