46 research outputs found

    Effects of rootstock and training system on tree canopy, fruit quality and phytochemicals of ‘0900 Ziraat’ and ‘Regina’ sweet cherry cultivars

    Get PDF
    Both ‘0900 Ziraat’ and ‘Regina’ grafted on ‘Krymsk 5’, or ‘Piku 1’ rootstocks were trained to either Upright Fruiting Offshoots (UFO), Super Slender Axe (SSA) or Kym Green Bush (KGB) training systems. Vegetative growth of the tree, determined by measuring trunk cross-sectional area (TCSA), canopy volume and leaf area, differed significantly, depending on the cultivar x rootstock x training system combination. In general, ‘Krymsk 5’ rootstock resulted in trees with significantly thicker trunks (TCSA: 37.75 cm²) and increased leaf area (up to 86.97 cm²). Fruit weight and fruit quality parameters including Hunter a*, firmness, TSS and acidity were variable between rootstocks and training systems and often not significantly different between treatments. In some years however, significant differences were highly dependent on the training system and rootstock interactions. Higher concentrations of bioactive phytochemical concentrations for total monomeric anthocyanin and antioxidant concentrations were mostly associated with the UFO training system in conjunction with the ‘Krymsk 5’ rootstock suggesting that these are linked to increased tree vigour and increased leaf surface area

    CD38 Exacerbates Focal Cytokine Production, Postischemic Inflammation and Brain Injury after Focal Cerebral Ischemia

    Get PDF
    BACKGROUND: Converging evidence suggests that inflammatory processes significantly influence brain injury and clinical impairment in ischemic stroke. Although early studies suggested a key role of lymphocytes, recent data has emphasized the orchestrating function of innate immunity, i.e., macrophages and microglia. The bifunctional receptor and ectoenzyme CD38 synthesizes calcium-mobilizing second messengers (e.g., cyclic ADP-ribose), which have been shown to be necessary for activation and migration of myeloid immune cells. Therefore, we investigated the dynamics of CD38 in stroke and the impact of CD38-deficiency on cytokine production, inflammation and cerebral damage in a mouse model of cerebral ischemia-reperfusion. METHODOLOGY/PRINCIPAL FINDINGS: We show that the local expression of the chemokine MCP-1 was attenuated in CD38-deficient mice compared with wildtype mice after focal cerebral ischemia and reperfusion. In contrast, no significant induction of MCP-1 expression was observed in peripheral blood after 6 hours. Flow cytometry analysis revealed less infiltrating macrophages and lymphocytes in the ischemic hemisphere of CD38-deficient mice, whereas the amount of resident microglia was unaltered. An up-regulation of CD38 expression was observed in macrophages and CD8(+) cells after focal cerebral ischemia in wildtype mice, whereas CD38 expression was unchanged in microglia. Finally, we demonstrate that CD38-deficiency decreases the cerebral ischemic injury and the persistent neurological deficit after three days of reperfusion in this murine temporary middle cerebral artery occlusion (tMCAO) model. CONCLUSION/SIGNIFICANCE: CD38 is differentially regulated following stroke and its deficiency attenuates the postischemic chemokine production, the immune cell infiltration and the cerebral injury after temporary ischemia and reperfusion. Therefore CD38 might prove a therapeutic target in ischemic stroke

    Iron removal, energy consumption and operating cost of electrocoagulation of drinking water using a new flow column reactor

    Get PDF
    The goal of this project was to remove iron from drinking water using a new electrocoagulation (EC) cell. In this research, a flow column has been employed in the designing of a new electrocoagulation reactor (FCER) to achieve the planned target. Where, the water being treated flows through the perforated disc electrodes, thereby effectively mixing and aerating the water being treated. As a result, the stirring and aerating devices that until now have been widely used in the electrocoagulation reactors are unnecessary. The obtained results indicated that FCER reduced the iron concentration from 20 to 0.3 mg/L within 20 min of electrolysis at initial pH of 6, inter-electrode distance (ID) of 5 mm, current density (CD) of 1.5 mA/cm2, and minimum operating cost of 0.22 US $/m3. Additionally, it was found that FCER produces H2 gas enough to generate energy of 10.14 kW/m3. Statistically, it was found that the relationship between iron removal and operating parameters could be modelled with R2 of 0.86, and the influence of operating parameters on iron removal followed the order: C0>t>CD>pH. Finally, the SEM (scanning electron microscopy) images showed a large number of irregularities on the surface of anode due to the generation of aluminium hydroxides

    Colon perforation during percutaneous nephrolithotomy and fistula closure with Spongostan following conservative therapy

    No full text
    Percutaneous nephrolithotomy (PCNL) is the first-line treatment for kidney stones. Colon perforation is a rare, but dangerous, complication. Colonic perforation might be very serious if it is not found early. After an unsuccessful extracorporeal shockwave lithotripsy, a 45-year-old female underwent a left-sided PCNL for two 1-cm kidney stones in the left kidney upper pole calyx. During dilatation, a colon perforation was suspected. The procedure was finished by inserting a 14Fr re-entry catheter into the colon. On postoperative day 5, a fluoroscopy was performed by injecting contrast dye through the re-entry catheter, which showed a fistula formation between skin and colon. The catheter was removed completely. A 16Fr external drainage catheter was inserted over the guidewire through the fistula tract. The fistula was closed by introducing prepared absorbable hemostatic gelatin powder (Spongostan) particles into the fistula tract through the catheter. Fistula tracks can be closed early by injecting absorbable Spongostan particles into the colonic fistula tract, thereby reducing inpatient time and increasing patient comfort

    Risk factors for hemorrhage requiring embolization after percutaneous nephrolithotomy

    No full text
    INTRODUCTION: Percutaneous nephrolithotomy (PCNL) is the primary surgical intervention in kidney stone management. Even though it is performed quite often, the complication rates are also high. Arteriovenous fistulas following extended hemorrhages after PCNL are one of the most serious complications of this operation. Our main objective was to review the data of patients who required angiography and embolization. METHODS: In total, we included 1405 patients who underwent PCNL between 2007 and 2014. All patient data were retrospectively reviewed. All patients went under PCNL using fluoroscopy. Following informed consent, all hemorrhagic patients underwent angiography in the interventional radiology department and embolization was performed in patients with a hemorrhage focus point. RESULTS: A total of 147 patients (10.4%) required transfusion for post-PCNL hemorrhages. Of them, 14 (0.99%) underwent angiography and embolization (9 [64.2%] were male and 5 [35.8%] were female, with a mean age of 39.4 ± 10.2). The remaining 133 patients were conservatively managed (81 [60.9%] males and 52 [39.1%] females, with a mean age of 42.3 ± 12.4). When the predicting factors for angiography and embolization were reviewed, renal abnormalities and the mean size of stones were significant in both univariate and multivariate analysis (p < 0.001). CONCLUSION: Patients with extended and intermittent hematuria should be monitored closely for hemodynamics; if there is an ongoing necessity for transfusion, angiography should be considered

    Risk factors for hemorrhage requiring embolization after percutaneous nephrolithotomy

    No full text
    Introduction: Percutaneous nephrolithotomy (PCNL) is the primary surgical intervention in kidney stone management. Even though it is performed quite often, the complication rates are also high. Arteriovenous fistulas following extended hemorrhages after PCNL are one of the most serious complications of this operation. Our main objective was to review the data of patients who required angiography and embolization
    corecore