Dietary interventions during chemotherapy hold promise for clinical and supportive care outcomes. We systematically investigated the feasibility, safety, and efficacy of nutritional counseling conducted during chemotherapy. Studies prospectively implemented nutrition counseling during chemotherapy.
View Article and Find Full Text PDFRadiotherapy is a common cancer treatment, and concurrent nutritional interventions can maintain nutritional status and improve clinical and supportive care outcomes. However, optimal nutritional interventions during radiotherapy are not firmly established. Herein, we assessed the feasibility, safety, and efficacy of dietary counseling interventions without oral nutrition supplements on health outcomes in adults receiving radiotherapy for cancer in a systematic review.
View Article and Find Full Text PDFControlling the distribution of ionizable groups of opposite charge in microgels is an extremely challenging task, which could open new pathways to design a new generation of stimuli-responsive colloids. Herein, we report a straightforward approach for the synthesis of polyampholyte Janus-like microgels, where ionizable groups of opposite charge are located on different sides of the colloidal network. This synthesis approach is based on the controlled self-assembly of growing polyelectrolyte microgel precursors during the precipitation polymerization process.
View Article and Find Full Text PDFThe in situ nanoscopic imaging of soft matter polymer structures is of importance to gain knowledge of the relationship between structure, properties, and functionality on the nanoscopic scale. Cross-linking of polymer chains effects the viscoelastic properties of gels. The correlation of mechanical properties with the distribution and amount of cross-linkers is relevant for applications and for a detailed understanding of polymers on the molecular scale.
View Article and Find Full Text PDFIn this study the effect of various emulsifiers (whey protein isolate (WPI), Na-caseinate, and Tween 20) and thickeners (xanthan and pectin) present in the outer water phase, w, on oil droplet size and yield of the inner water phase, w, of (w/o/w) double emulsions was investigated. Double emulsions stabilized by Tween 20 had smaller oil droplet sizes and higher yields in comparison to emulsions stabilized by WPI and Na-caseinate. Gelation of the inner water droplets w increased yield by 20% for all emulsifiers.
View Article and Find Full Text PDFPhotoinduced size changes in microgel particles loaded with gold nanoparticles (AuNPs) were investigated with an extended multiangle dynamic light scattering (DLS) setup. The DLS setup was equipped with a conventional laser (λ = 633 nm) to determine the microgel particle size. Additionally, a laser (λ = 532 nm) is installed to study the photoresponsive behavior of the AuNP-microgel hybrids.
View Article and Find Full Text PDFSuper-resolution fluorescence microscopy allows for unprecedented in situ visualization of biological structures, but its application to materials science has so far been comparatively limited. One of the main reasons is the lack of powerful dyes that allow for labeling and photoswitching in materials science systems. In this study it is shown that appropriate substitution of diarylethenes bearing a fluorescent closed and dark open form paves the way for imaging nanostructured materials with three of the most popular super-resolution fluorescence microscopy methods that are based on different concepts to achieve imaging beyond the diffraction limit of light.
View Article and Find Full Text PDFNear-equilibrium stimulus-responsive polymers have been used extensively to introduce morphological variations in dependence of adaptable conditions. Far-less-well studied are triggered transformations at constant conditions. These require the involvement of metastable states, which are either able to approach the equilibrium state after deviation from metastability or can be frozen on returning from nonequilibrium to equilibrium.
View Article and Find Full Text PDFBiomacromolecules
September 2017
In this work we explored an enzyme-mediated method for selective and efficient decoration of aqueous microgels with biomolecules. Poly(N-vinylcaprolactam) (VCL) microgels with varied amounts of glycidyl methacrylate (GMA) as comonomer incorporated in the microgel shell were synthesized and characterized in regard to their size, swelling degree, and temperature-responsiveness in aqueous solutions. The surface of the PVCL/GMA microgel containing 5 mol % glycidyl methyacrylate was modified by grafting of a specific recognition peptide sequence (LPETG) for Sortase A from Staphylococcus aureus (Sa-SrtA).
View Article and Find Full Text PDFIn this study, thermal and redox dual sensitive nanogels based on N-vinylcaprolactam (VCL) and N-succinimidyl methacrylate (Suma) crosslinked with diallyl disulfide were synthesized via a facile and straightforward method. The reactive succinimide groups were mainly located in the nanogel shell which increases considerably their accessibility for conjugation reactions. Doxorubicin (DOX) was successfully loaded into the nanogel through two different routes.
View Article and Find Full Text PDFDouble (w/o/w) emulsions are potential fat replacers in foods. Fats are known for their lubricating properties, which contribute to texture perception. It is therefore of interest to understand how the composition of double emulsions influences lubrication properties.
View Article and Find Full Text PDFCompartmentalization in soft matter is important for segregating and coordinating chemical reactions, sequestering (re)active components, and integrating multifunctionality. Advances depend crucially on quantitative 3D visualization in situ with high spatiotemporal resolution. Here, we show the direct visualization of different compartments within adaptive microgels using a combination of in situ electron and super-resolved fluorescence microscopy.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
October 2016
The in situ imaging of soft matter is of paramount importance for a detailed understanding of functionality on the nanoscopic scale. Although super-resolution fluorescence microscopy methods with their unprecedented imaging capabilities have revolutionized research in the life sciences, this potential has been far less exploited in materials science. One of the main obstacles for a more universal application of super-resolved fluorescence microscopy methods is the limitation of readily available suitable dyes to overcome the diffraction limit.
View Article and Find Full Text PDFThe use of double emulsions (w/o/w) has been acknowledged as a promising strategy to reduce oil content in several food applications. Despite the potential of double emulsions for oil reduction, their sensory properties have not been investigated. In this study, we investigated sensory perception of double emulsions by descriptive sensory profiling using a trained panel (n=11).
View Article and Find Full Text PDFThis study was an open efficacy and safety study of teicoplanin in hospitalized patients with gram-positive infections. 26 patients entered the study. Teicoplanin was administered by intravenous bolus injection at a dose of 200 mg or 400 mg every 24 h, and in all cases an initial loading dose of 400 mg was given.
View Article and Find Full Text PDFGastroenterol Clin Biol
November 1986
Pathological prognostic factors of rectal adenocarcinoma were studied retrospectively in 173 patients who underwent curative resection between 1970 and 1980. Analysis was mono- and multifactorial. Minimal and median follow-up were 24 and 66 months respectively.
View Article and Find Full Text PDFThe authors report a case in which congenital microcoria was associated with glaucoma; a complete histopathological study was performed and the relation between microcoria and glaucoma was considered. The association with extra-ocular abnormalities, particularly renal lesions is noticed.
View Article and Find Full Text PDFInfusionsther Klin Ernahr
October 1985
During 1981-1984 13 patients with clinically manifest postoperative fistulas (11 small intestinal and 2 colonic) were treated with parenteral hyperalimentation. The therapy only ensued on intensive care conditions and a spontaneous closure of the fistula was observed in 7 patients, in 2 patients closure ensued after relaparotomy and parenteral hyperalimentation the time before. Time of therapy was 18 days on an average, the amount of calories was 2,900-3,400 kcal/day.
View Article and Find Full Text PDFThe authors report eleven new cases of nephrogenic metaplasia - a substantial addition to the sixty-three cases already reported in the literature. In their series, two cases involved the ureter, and nine, the bladder. They discuss the clinical and pathological aspects of the disease, and put forward suggestions concerning different aspects of the histogenesis.
View Article and Find Full Text PDFA report is given on a 25-year-old man who was admitted to the hospital because of severe headache (CSF: 280 cells per mm3, 90% lymphocytes, later normal). Headache persisted for one year when acute deterioration occurred. The CSF showed 140 cells per mm3 (100% lymphocytes), 1 g% protein.
View Article and Find Full Text PDFIn a significant number of cases, the administration of aminoglycosides induces renal failure. Electron microscopy has now shown that the renal lesion is mainly characterised by the appearance of myelin figures (myeloid bodies) in lysosomes of proximal convoluted tubules. These figures are then eliminated by urinary excretion.
View Article and Find Full Text PDFJ Urol (Paris)
October 1983
The authors reported a pathology and clinical study about 215 cases of non infiltrating transitional cell carcinoma of the bladder. During the successive treatments of these lesions 475 specimens were collected. 5 tumours characteristics were analyzed: size of the tumour, multiplicity, microscopic structure, grade, mitotic index.
View Article and Find Full Text PDFThe authors report a case of Lupus nephritis shown by ultrastructural analysis of subendothelial, mesangial and especially subepithelial deposits formed by aggregates of electron-dense straight tubular structures 20 to 30 nm in diameter. These unusual structural deposits, always identical, are observed in 4 biopsies performed over 8 years during the management of Systemic Lupus Erythematosus in a young woman. They are compared to the usual "Fingerprint" deposits of Systemic Lupus Erythematosus and to the geometric type deposits of cryoglobulinemic glomerulonephritis.
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