The Effect Of Saharan Dust On The Copper Uptake By Lemna Minor

In this study, the aim was to model the toxic effect of copper (Cu) and analyse the removal of Cu in aqueous Saharan and non-Saharan mediums by Lemna minor. Two separate test groups were formed: with Saharan dust (S) and without Saharan dust (WS). These test groups were exposed to 3 different Cu concentrations (0.05, 0.50 and 5.00 ppm). Time, concentration, and group-dependent removal efficiencies were compared using the non-parametric Mann-Whitney U test and statistically significant differences were found. The optimum removal values were tested at the highest concentration 79.6% in the S medium and observed on the 4th day for all test groups. The lowest removal value (16%) was observed at 0.50 ppm on the 1st day in the WS medium. When the S medium and WS medium were compared, in all test groups Cu was removed more successfully in the S medium than the WS medium contaminated by Cu in 3 different concentrations of (0.05 ppm, 0.50 ppm, 5.00 ppm). The regression analysis was also tested for all prediction models. Different models were performed and it was found that cubic models show the highest predicted values (R-2). The R-2 values of the estimation models were found to be at the interval of 0.939-0.991 in the WS medium and 0.995-1.000 in the S medium.Wo

Ecological effects of some heavy metals (Cd, Pb, Hg, Cr) pollution of phytoplanktonic algae and zooplanktonic organisms in Sariyar Dam Reservoir in Turkey

Accumulation of heavy metals (Cd, Pb, Hg, Cr) in water and plankton of Sariyar Dam Lake (SDR) was seasonally studied from April, 2000 to December, 2004. In addition, seasonal changes in phytoplankton and zooplankton populations and species abundance were also determinate. Some physio-chemical parameters of water and their correlation with heavy metals were also determinated. The dominant phytoplanktonic algae determined were Choroococcus, Gomphospheria, Oscillatoria, Phormidium, Anabaena, Nostoc, Cystodinium, Dinobryon, Ankistrodesmus, Chlorella, Coelastrum, Oocystis, Pediastrum, Scenedesmus, Cosmarium, Oedogonium, Cyclotella, Achnanthes, Amphora, Anomoneis, Cocconeis, Cymbella, Diatoma, Diploneis, Fragilaria, Gomphonema, Navicula, Nitzschia, Nitzschia, Rhoicosphenia, Surirella and Synedra. The dominant zooplanktonic organisms determined were Asplachna priodonta, Brachionus angularis, Keratella quadrata, Keratella cochlearis, Keratella tropica, Polyarthra vulgaris, Proales decipiens, Bosmina longirostris, Ceriodaphnia quadrangula, Chydorus sphaericus, Daphnia longispina, Diaphanosoma brachyurum, Macrothrix laticornis, Acanthocyclops robustus and Acanthodiaptomus denticornis. High concentrations of all heavy metals were recorded in the plankton. Hg was lowest and Pb highest; but the concentration of each metal varied seasonally

Intraoperative gamma probe application in patients prediagnosed with osteoid osteoma

INTRODUCTION: Osteoid osteoma is a benign but painful bone tumor that is treated with the excision of the nidus. Due to difficulties in reaching the tumor, intraoperative localization may be needed for complete excision without unnecessary resection of the surrounding bone. AIM: The aim of this study was to evaluate the effectiveness of intraoperative gamma probe application in the preoperative planning and for intraoperative localization of osteoid osteoma. MATERIALS AND METHODS: The study included a total of 26 patients, comprising 10 females and 16 males with a mean age of 19.6 years (range: 6–45 years), who were prediagnosed with osteoid osteoma based on clinical and radiological findings. All patients were admitted for surgery following bone scintigraphy. All operations were performed with the use of a gamma probe. RESULTS: Clinical results were obtained from the postoperative pain evaluation, and excised bone tissue fragments were evaluated histopathologically. Localization of the lesion area was made intraoperatively using a gamma probe in all patients. A statistically significant difference was determined between the radioactivity counts in the normal peripheral bones of the lesion and the lesion area itself (P < 0.001). The ratio of lesion to normal tissue was 4/1 on average. The radioactivity level dropped by 62% on average (30%–90%) in the cavity cleaned after postresectional excision of the pathological tissue. The radioactivity counts in the cavity after resection was found to be significantly lower than those of the lesion area before resection (P < 0.001). CONCLUSION: The use of a gamma probe in intraoperative localization following a preoperative injection of99mTc-methylene diphosphonate, is an easy and safe method that helps in the localization of osteoid osteoma nidus during surgery and guides a limited but complete resection of the tumor

The accumulation of heavy metals (Cd, Pb, Hg, Cr) and their state in phytoplanktonic algae and zooplanktonic organisms in Beysehir Lake and Mogan Lake, Turkey

Beysehir and Mogan Lakes are two shallow Lakes that are under environmental protection status. Phytoplanktonic dominant algae determined in Beysehir Lake were Oscillatoria sp., Cladophora sp., Achnanthes sp., Gomphonema sp., Navicula sp., Cosmarium sp., Cymbella sp., Fragilaria sp., Oocystis sp., Spirogyra sp., Diatomae sp., Microcystis sp. and Staurastrum sp. While in Mogan Lake, Spirogyra sp., Zygnema sp., Euglena sp., Achnanthes sp., Cymbella sp., Fragilaria sp. Navicula sp., Scenedesmus sp., Oocystis sp., Synedra sp., Oscillatoria sp., Chlorella sp., Cosmarium sp. and Nitzshia sp. were determined. Zooplanktonic dominant organisms determined in Beysehir Lake were Eudiaptomus drieshi, Daphnia longispina and Brachionus calyciforus while Arctodiaptomus sp., Keratella quadrata, Filinia longiseta and Diaphanosoma lacustris were determined in Mogan Lake. Accumulation of heavy metals (Cd, Pb, Hg and Cr) in the water and plankton of Beysehir and Mogan Lakes was studied seasonally, from April 2000 to December 2004. Higher concentration with all heavy metals was recorded in plankton. Mercury (Hg) was found in lowest and lead (Pb) in the highest correlation; however, the concentration of each metal varied seasonally. In addition, the seasonal changes in phytoplankton and zooplankton populations and species abundance were also determined. Some physical-chemical parameters of water and their correlation with heavy metals were also examined

METABOLIC SYNDROME IN PATIENTS WITH SCHIZOAFFECTIVE DISORDER AND RELATIONSHIP WITH THE ANTIPSYCHOTICS

WOS: 000424878600022Introduction: Metabolic syndrome is highly prevalent in patients with schizophrenia. The use of atypical antipsychotics also increases the risk of metabolic syndrome. This study aimed to evaluate the association between schizoaffective disorder and risk of incident metabolic syndrome and the relationship with the drugs used. Materials and methods: This cross-sectional study included patients diagnosed with schizoaffective disorder. The study group consisted of 77 outpatients aged 18 to 65 years, prescribed any antipsychotic medication between September 2013 and August 2014. Metabolic syndrome was defined using the criteria of the National Cholesterol Education Program - Adult Treatment Protocol and the National Cholesterol Education Program - Adapted Adult Treatment Protocol. Results: Metabolic syndrome was found in 33.8% according to National Cholesterol Education Program - Adult Treatment Protocol diagnostic criteria, 36.4% according to National Cholesterol Education Program - Adapted Adult Treatment Protocol diagnostic criteria of the patients. When we grouped patients treated with typical antipsychotic, atypical antipsychotics and typical & atypical antipsychotics in combination, there was no significant difference for prevalence of metabolic syndrome among any groups. Metabolic syndrome prevalence was significantly higher in study subjects using antidepressants in combination with antipsychotics. Conclusions: The results suggest that metabolic syndrome risk is common among patients with schizoaffective disorder. Our data shows that systemic inflammation plays a key role in both schizoaffective disorder and metabolic syndrome so chronic comorbid disorders should be treated concurrently and all risk factors like that weight loss, regular physical activity, smoking cessation should be eliminated by modifying life style

The role of oxidants and reactive nitrogen species in irritable bowel syndrome: A potential etiological explanation

Background The aim of this study was to evaluate the plasma concentrations of malondialdehyde (MDA) and nitric oxide (NO) and the plasma activities of oxidant and antioxidant enzymes in patients with IBS. Material and Methods A total of 36 patients with IBS were included in the study. Thirty-five healthy subjects were selected to form the control group. Superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), xanthine oxidase (XO), adenosine deaminase (AD) activities, and malondialdehyde (MDA) and nitric oxide (NO) concentrations were studied in the serum samples of all patients and controls. Results Plasma XO and AD activities, and MDA and NO concentrations were significantly higher in IBS patients than in controls. The SOD, CAT, and GSH-Px activities in the serum of patients with IBS were significantly lower than that of controls. Conclusions These results suggest that lipid peroxidation and alterations in the oxidant-antioxidant enzymatic system may play a role in the pathogenesis of IBS. Increased lipid peroxidation in IBS may be related to an increase in NO level and XO activity and a decrease in antioxidant enzymes activities. In addition, increased AD activity may have a role in immunological changes of IBS patients