24 research outputs found

    Female germ unit in Genlisea and Utricularia, with remarks about the evolution of the extra-ovular female gametophyte in members of Lentibulariaceae

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    Lentibulariaceae is the largest family among carnivorous plants which displays not only an unusual morphology and anatomy but also the special evolution of its embryological characteristics. It has previously been reported by authors that Utricularia species lack a filiform apparatus in the synergids. The main purposes of this study were to determine whether a filiform apparatus occurs in the synergids of Utricularia and its sister genus Genlisea, and to compare the female germ unit in these genera. The present studies clearly show that synergids in both genera possess a filiform apparatus; however, it seems that Utricularia quelchii synergids have a simpler structure compared to Genlisea aurea and other typical angiosperms. The synergids are located at the terminal position in the embryo sacs of Pinguicula, Genlisea and were probably also located in that position in common Utricularia ancestor. This ancestral characteristic still occurs in some species from the Bivalvaria subgenus. An embryo sac, which grows out beyond the limit of the integument and has contact with nutritive tissue, appeared independently in different Utricularia lineages and as a consequence of this, the egg apparatus changes position from apical to lateral

    XLIV Konferencja Komitetu Nauk o Żywności i Żywieniu PAN: nauka, technologia i innowacje w żywności i żywieniu

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    Streszczenia w jęz. angielskimWydarzenie: XLIV Konferencja Komitetu Nauk o Żywności i Żywieniu PAN; Łódź, 3-4 lipca 2019 r.; http://pan.binoz.p.lodz.plOrganizator konferencji: Wydział Biotechnologii i Nauk o Żywności PŁ; Komitet Nauk o Żywności i Żywieniu PAN; Polskie Towarzystwo Technologów ŻywnościProjekt graficzny okładki: Grzelczyk, J.Projekt graficzny okładki: Klewicki, R.Skład: Oracz, J.Za treść zamieszczonych materiałów odpowiadają ich autorzy.Sesje Naukowe Komitetu Nauk o Żywności i Żywieniu Polskiej Akademii Nauk (KNoŻiŻ PAN) są organizowane przez krajowe ośrodki akademickie związane z naukami o żywności i żywieniu w dwuletnich cyklach. Sesje te stanowią największe w skali kraju forum prezentacji najnowszych osiągnięć naukowych i technologicznych w dziedzinie technologii żywności i żywienia człowieka, jak również wymiany poglądów oraz doświadczeń pracowników jednostek naukowych i przedstawicieli przemysłu spożywczego. Tematyka XLIV Sesji dotyczyć będzie szeroko pojętej problematyki związanej z oddziaływaniem żywności i odżywiania na zdrowie człowieka

    Antiinflammatory Therapy with Canakinumab for Atherosclerotic Disease

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    Background: Experimental and clinical data suggest that reducing inflammation without affecting lipid levels may reduce the risk of cardiovascular disease. Yet, the inflammatory hypothesis of atherothrombosis has remained unproved. Methods: We conducted a randomized, double-blind trial of canakinumab, a therapeutic monoclonal antibody targeting interleukin-1β, involving 10,061 patients with previous myocardial infarction and a high-sensitivity C-reactive protein level of 2 mg or more per liter. The trial compared three doses of canakinumab (50 mg, 150 mg, and 300 mg, administered subcutaneously every 3 months) with placebo. The primary efficacy end point was nonfatal myocardial infarction, nonfatal stroke, or cardiovascular death. RESULTS: At 48 months, the median reduction from baseline in the high-sensitivity C-reactive protein level was 26 percentage points greater in the group that received the 50-mg dose of canakinumab, 37 percentage points greater in the 150-mg group, and 41 percentage points greater in the 300-mg group than in the placebo group. Canakinumab did not reduce lipid levels from baseline. At a median follow-up of 3.7 years, the incidence rate for the primary end point was 4.50 events per 100 person-years in the placebo group, 4.11 events per 100 person-years in the 50-mg group, 3.86 events per 100 person-years in the 150-mg group, and 3.90 events per 100 person-years in the 300-mg group. The hazard ratios as compared with placebo were as follows: in the 50-mg group, 0.93 (95% confidence interval [CI], 0.80 to 1.07; P = 0.30); in the 150-mg group, 0.85 (95% CI, 0.74 to 0.98; P = 0.021); and in the 300-mg group, 0.86 (95% CI, 0.75 to 0.99; P = 0.031). The 150-mg dose, but not the other doses, met the prespecified multiplicity-adjusted threshold for statistical significance for the primary end point and the secondary end point that additionally included hospitalization for unstable angina that led to urgent revascularization (hazard ratio vs. placebo, 0.83; 95% CI, 0.73 to 0.95; P = 0.005). Canakinumab was associated with a higher incidence of fatal infection than was placebo. There was no significant difference in all-cause mortality (hazard ratio for all canakinumab doses vs. placebo, 0.94; 95% CI, 0.83 to 1.06; P = 0.31). Conclusions: Antiinflammatory therapy targeting the interleukin-1β innate immunity pathway with canakinumab at a dose of 150 mg every 3 months led to a significantly lower rate of recurrent cardiovascular events than placebo, independent of lipid-level lowering. (Funded by Novartis; CANTOS ClinicalTrials.gov number, NCT01327846.

    Embryo sac deyelopment in Pinguicula vulgaris L.

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    Adhesion of bacterial films on polymer food films covered by graphene oxide emulsion and graphene nanoparticles

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    Analysis of Infrared Spectra of Neat Liquid N-Methylpyrrole

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    The vibrational properties of neat liquid N-methylpyrrole were investigated. Quantitative near-infrared and mid-infrared spectra recordings including thin film MIR transmission studies were performed. Basing on these data the optical constants of N-methylpyrrole in the 12500-560 cm^{-1} region were determined. The experiment was supported by an anharmonic analysis based on Möller-Plesset perturbation theory and density functional theory level of theory, including the hybrid B2PLYP functional. Assignments of numerous bands observed in the liquid phase were proposed basing on potential energy distribution calculations and a comparison of experimental and simulated spectra was presented. The inaccuracy of static calculations in the reproduction of experimental spectrum in the C-H stretching region has been observed and explained by the rotation of methyl group. A vibrational spectrum was therefore calculated by the use of Car-Parinello molecular dynamics method for a better simulation of experimental spectrum

    The applications of thermal imaging in dentistry : pilot study

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    Zastosowanie termowizji w różnorodnych dziedzinach nauki i medycyny z roku na rok staje się coraz bardziej popularne. Analiza zmian metabolicznych tkanek i narządów przy użyciu pomiarów termowizyjnych dostarcza coraz to nowych informacji diagnostycznych. Celem niniejszej pracy była próba analizy zmian metabolicznych pacjentów poddanych chirurgicznemu usunięciu trzecich zębów trzonowych w trakcie zabiegu oraz do 7 dni po wykonanej ekstrakcji. Przeprowadzone badania na grupie 6 pacjentów pokazały zależności gradientów temperatury w konkretnych fazach regeneracji tkanek po zabiegu chirurgicznym. Ponadto otrzymane mapy termiczne wykazały korelacje pomiędzy lokalizacją stanu zapalnego a występowaniem podwyższonej temperatury na powierzchni policzka pacjentów. Wstępne pomiary mogą wskazywać na przydatność metody obrazowania termicznego w procedurach stomatologicznych.The applications of thermal imaging year and the year has become more popular in different science and medicine areas. The thermal analysis of tissue and organs metabolism changes can provide researchers new diagnostic informations. The aim of the study was to use thermal imaging to analyze the tissue metabolical changes after the surgical removal of retained third molar teeth. The imaging was done before, after and till 7 days after the procedure. Measured group contains 6 patients. The temperature gradients were showed for the different regeneration phases after the surgical interaction. Moreover the thermal images are correlated with the inflammation area due to occure the area of higher temperature. The results may indicate that thermal imaging is useful as a diagnostic tool in stomatological procedures
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