HIGH-DENSITY GREEN PHOTONS EFFECTS ON NaCl SOLUTIONS DETECTED BY RED BLOOD CELLS MEMBRANES

This paper presents a new technique for investigating the modifications induced by highdensity green light [GL] on water in NaCl solutions. Solutions of 0,45 g% and 0,9 g%, irradiated with green light (λ=527 nm, intensity 3·10 5 Lx) were used. As a receptor for measuring the irradiation effect we used red blood cell (RBC) permeability in hypotonic media, the so-called osmotic shock. After RBC lysis in hypotonic medium, the released hemoglobin was spectrophotometrically determined at λ=550 nm. The values of the osmotic shock for the samples obtained with GL-irradiated NaCl solutions were significantly lower than the values obtained with non-irradiated controls. This may indicate that the penetration of water inside the membranes canaliculi is hindered. This new type of result was complemented by chronoamperometry and impedance spectroscopy determinations. The current density of the irradiated solution decreases from the value of 29.5 µA·cm -2 in the control to 17.74 µA·cm -2 in the irradiated sample with a corresponding decrease of ionic mobility. The impedance value of the GL irradiated NaCl solutions were significantly lower than the control values, thus correlating well with the data recorded by chronoamperometry. All these data may indicate large water cluster formation through GL irradiation which are beyond the cellular aquaporine channels capacity. A similar process is identified by using red light, as well as blue light, though with a much smaller output

Optical manipulation of Saccharomyces cerevisiae cells reveals that green light protection against UV irradiation is favored by low Ca2+ and requires intact UPR pathway

AbstractOptical manipulation of Saccharomyces cerevisiae cells with high density green photons conferred protection against the deleterious effects of UV radiation. Combining chemical screening with UV irradiation of yeast cells, it was noted that the high density green photons relied on the presence of intact unfolded protein response (UPR) pathway to exert their protective effect and that the low Ca2+ conditions boosted the effect. UPR chemical inducers tunicamycin, dithiotreitol and calcium chelators augmented the green light effect in a synergic action against UV-induced damage. Photo-manipulation of cells was a critical factor since the maximum protection was achieved only when cells were pre-exposed to green light

Field evaluation of baited traps for surveillance of Aedes japonicus japonicus in Switzerland

The efficacy of Centers for Disease Control (CDC) miniature light traps and ovitraps was tested in the outskirts of the city of Zurich in Switzerland for their use in the surveillance of Aedes (Hulecoeteomyia) japonicus japonicus (Theobald) (Diptera: Culicidae), the invasive Asian bush mosquito. Sets of single CDC traps were run overnight (n = 18) in three different environments (forest, suburban and urban) in 3 × 3 Latin square experimental designs. Traps were baited with: (a) carbon dioxide (CO2); (b) CO2 plus light, or (c) CO2 plus lure blend [Combi FRC 3003 (iGu®)]. At the same locations, mosquito eggs were collected weekly using standard ovitraps baited with different infusions (oak, hay or tap water) and equipped with different oviposition substrates (a block of extruded polystyrene, a germination paper strip or a wooden stick). Data were analysed using Poisson and negative binomial general linear models. The use of light (P 0.05), and extruded polystyrene blocks were preferred as an oviposition substrate over wooden sticks (P < 0.05) and seed germination paper (P < 0.05). Carbon dioxide-baited CDC miniature light traps complemented with light or iGu® lure and ovitraps containing standing tap water and polystyrene oviposition blocks can be considered as efficient and simple tools for use in Ae. j. japonicus surveillance programmes

18 years of Romanian national program of liver transplant - a retrospective analysis of 924 patients operated

Center of General Surgery and Liver Transplantation “Dan Setlacec”, Fundeni Clinical Institute, Bucharest, Romania, Al XIII-lea Congres al Asociației Chirurgilor „Nicolae Anestiadi” și al III-lea Congres al Societății de Endoscopie, Chirurgie miniminvazivă și Ultrasonografie ”V.M.Guțu” din Republica MoldovaIntroducere: Transplantul hepatic (TH) a devenit un tratament stabil pentru boala hepatică în stadiu final, cu peste 20.000 de proceduri la nivel mondial anual. Prelegerea prezintă și analizează înființarea și rezultatele Programului Național Român al TH. Material și metode: Între aprilie 2000 și decembrie 2018, 924 pacienti au efectuat 964 operatii de TH în România. Raportul dintre bărbați și femei a fost de 546/378, în timp ce raportul adult / pediatric a fost de 857/67, cu o vârstă medie de 46 de ani (mediană de 50 de ani, interval de 7 luni - 68 de ani). Principalele indicații TH au fost ciroza VHB (270 pac., 29%), CHC (196 pac., 21%) și ciroza VHC (141 pac., 15%). Rezultate: TH de la donator aflat in moarte cerebrala a fost efectuat în 805 de cazuri: TH total în 778 de cazuri, TH împărțit (split) în 20 de cazuri, LT redus în 5 cazuri, LT accesoriu în 1 caz și domino LT în 1 pac. TH de la donator inrudit a fost efectuat în 159 de pacienti:cu hemificat drept la113 pac (12%), secțiune laterală stânga la 30 pac (3%), cu hemificat stang la 14 pac (1,5%) și LDLT dual graft la 2 pacienti. Rata generală de morbiditate majoră a fost de 42% (cel puțin clasa IIIB Clavien-Dindo), în timp ce mortalitatea perioperatorie a fost de 8%. Rata de retransplantare a fost de 4,3% (40 de pac). Pe termen lung, ratele de supraviețuire estimate la pacienți cu 1, 3 și 5 ani au fost de 88%, 82% și, respectiv, 79%. Concluzii: Programul național de transplant hepatic abordează toate cauzele insuficienței hepatice acute și cronice sau a tumorilor hepatice la adulți și copii, folosind toate tehnicile chirurgicale, cu rezultate bune pe termen lung. Programul a evoluat constant în timp, ceea ce a dus la scăderea ratei mortalității pe lista de așteptare. * * * Introduction: Liver transplantation (LT) has become an established treatment for end-stage liver disease, with more than 20.000 procedures yearly worldwide. The lecture presents and analyzes the setting-up and results of the Romanian National Program of LT. Material and methods: Between April 2000 and December 2018, 924 pts received 964 LTs in Romania. Male/female ratio was 546/378, while adult/pediatric ratio was 857/67, with a mean age of 46 years (median 50 yrs; range 7 months – 68 yrs). Main LT indications were HBV cirrhosis (270 pts; 29%), CHC (196 pts; 21%), and HCV cirrhosis (141 pts; 15%). Results: Deceased donor LT was performed in 805 cases: whole LT in 778 cases, split LT in 20 cases, reduced LT in 5 cases, accesory LT in 1 case, and domino LT in 1 pt. Living donor LT was performed in 159 pts: right hemiliver in 113 pts (12%), left lateral section in 30 pts (3%), left hemiliver in 14 pts (1.5%), and dual graft LDLT in 2 pts. Overall major morbidity rate was 42% (at least IIIB Clavien-Dindo class), while perioperative mortality was 8%. Retransplantation rate was 4.3% (40 pts). Long-term overall 1, 3, and 5-year estimated survival rates for patients were 88%, 82%, and 79%, respectively. Conclusions: The Romanian National program for liver transplantation addresses all causes of acute and chronic liver failure or liver tumors in adults and children, using all surgical techniques, with good long-term outcome. The program constantly evolved over time, leading to decreased mortality rate on the waiting list