Hemşirelik Bölümü Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12514/222

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Analysis of bioactive compounds using LC-ESI-MS/MS, cytotoxic, antimicrobial effects, and enzyme activities from Cyclotrichium origanifolium
(Wiley Online Library, 2022) Aktepe, Necmettin; Baran, Ayşe; Atalar, Mehmet Nuri; Baran, Mehmet Fırat; Keskin, Cumali; Taşkin, Abdullah; Yavuz, Ömer; Demirtaş, İbrahim; Oğuz, Ercan; Jahan, Israt
Cyclotrichium origanifolium is a medicinal plant belonging to the Lamiaceae family. In this study, phenolic content analysis, antimicrobial effects, and cytotoxic effects of extracts of C. origanifolium were investigated. In the extracts, phenolic compound analysis by the liquid chromatography–electrospray ionization– tandem mass spectrometry method, antimicrobial effect by the minimum inhibition concentration method, and cytotoxic effect on human dermal fibroblasts (HDF), glioblastoma cell (U87), ovarian adenocarcinoma cell (Skov-3), and human colorectal adenocarcinoma cell (CaCo-2) cancer cell lines were investigated. Cytotoxicity analyses were performed by the MTT method. In addition, the GST and AChE enzyme activities of the extracts were also measured. Around 18 compounds were detected in both the methanol and ethanol extract. It was found that the best antimicrobial effect on Gram-negative Pseudomonas aeruginosa was on methanol extract, while the ethanol extract was on Candida albicans fungus (respectively, 2.50mg/ml, 5.0 μg/ml). A 500μg/ml of methanol extract has been shown to have cytotoxic activity high effect on HDF cells. GST and AChE activity were found to decrease in a concentration-dependent manner.
Biochemical components, enzyme inhibitory, antioxidant and antimicrobial activities in endemic plant Scilla mesopotamica speta
(Wiley, 2021) Aktepe, Necmettin; Keskin, Cumali; Baran, Ayşe; Atalar, Mehmet Nuri; Baran, Mehmet Fırat; Akmeşe, Şükrü
In this study, in vitro antioxidant, antimicrobial, anticholinesterase and phenolic profile of different solvent extracts of Scilla mesopotamica speta were determined in detail. In vitro antioxidant activities and total phenolic and flavonoid contents of plant extracts obtained with different solvents were tested in terms of 2.2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activities. The highest total phenolic and total flavonoid contents were determined in the ethyl acetate extract (62.24 mu g GAE/mg) and chloroform extract (87.72 mu g QE/mg) respectively. The highest DPPH radical scavenging activity was detected in ethyl acetate extracts. Antimicrobial and antifungal activities were investigated by MIC method. The inhibitory activities of the extracts on the acetyl cholinesterase enzyme were investigated. Liquid chromatography (LC) tandem mass spectrometry LC-MS/MS was used to determine the phenolic component content of extracts. Thirty-one different components were identified in the analyses and their amounts were measured. Practical applications Scilla mesopotamica speta is an endemic and medicinal plant. It was determined that the extracts of this plant had a very rich content in terms of phenolic compounds, especially caffeic and ferulic acids. However, this plant was remarkable for its antioxidant, anticholinesterase, and antimicrobial activities. Considering the strong antioxidant, antimicrobial, and enzyme inhibition activities of the Scilla mesopotamica speta it can be suggested as a source of anticancer, antimicrobial, and antiviral drugs.
Eating Behavior Changes of People With Obesity During the Covid-19 Pandemic
(Dove Medical Press Ltd, 2021) Deger, Vasfiye Bayram
Objective: The precautions taken during the pandemic period may cause stress-related eating behavior disorders. It was aimed to test this hypothesis, and the study was carried out to examine pandemic measures the effect of on the nutritional, depression and stress conditions of people with obesity. Methods: The individuals who participated in the study were people with obesity who received follow-up dietary therapy in a private hospital. Three separate scales were applied to the individuals, which measured the desire to overeating request, depression status and stress-fighting status. Results: This study was conducted on 368 individuals. Women had lower values of BMI (28.57 +/- 3.89 kg/cm(2)) than men ( 30.64 +/- 2.87 kg/cm(2)). When the scores of the excessive eating request scale mean scores before and during the pandemic were examined, it was seen that the scores of the individuals increased during the pandemic. In the multivariate regression model, it was seen that the increase of stress and BMI increased the FCQ score (p<0.001). Multiple regression models were created by taking into account the criteria that caused the score increase. Each variable can predict the FCQ score separately. The predictor significance order of variants on FCQ score beta values is as follows: the Patient Health Questionnaire-9 (PHQ-9) (beta=0.774), before pandemic FCQ (beta = 0.601), the Perceived Stress Scale ( PSS) (beta=-0.268), before pandemic BMIa (beta=-0.223), during pandemic BMIb (beta=0.073), and age (beta=-0.013). Conclusion: COVID-19 pandemic, making applications such as quarantine in pandemic processes has successful results in being able to combat its. However, undesirable conditions such as stress can have serious negative consequences on other health measurements. It was observed in the results of this study that excessive eating food desire developed in people with obesity.
ERUCA SATIVA MILL SEEDS OIL ALLEVIATES HYPERLIPIDEMIA AND NON-ALCOHOLIC FATTY LIVER DISEASE IN SYRIAN HAMSTER
(2022) Alhilal, M; Sulaiman, Y A M; Subuh, A M; Habra, N; Alhilal, S
The impact of oils rich in long chain monounsaturated fatty acids (LCMUFA) against hyperlipidemia and non-alcoholic fatty liver disease (NAFLD) has been inadequately described. In addition, the chemical solvents and the high temperature used in vegetable oils extraction process from seeds cause severe loss of many vital compounds. So the goal of this paper was to examine the effect of cold pressed Eruca sativa Mill seeds oil (ESSO), as a source of LCMUFA, on hyperlipidemia and NAFLD in Syrian hamster. The ESSO content of fatty acids was analyzed using chromatographic methods. Fifty two (52) healthy male golden Syrian hamsters used in this experiment were randomly divided into 4 groups (Completely Randomized Design). Negative control group, CHD group, positive control group and ESSO group. This experiment was achieved in two periods. The first period continued 4 weeks, in which hyperlipidemia and NAFLD were induced in CHD, positive control and ESSO groups through feeding on a hyperlipidemic diet. The second period also lasted 4 weeks, in which ESSO was orally gavaged at 2 g/kg of the body weight daily to animals of ESSO group. The levels of total cholesterol (TC), triglycerides, HDL-C and glucose and the activities of ALT, AST, ALP, LDH and CK were analysed in the serum. One way analysis of variance (ANOVA) followed by Duncan's multiple range test was used for statistical analysis. The consumption of hyperlipidemic diet for 4 weeks caused a significant raise (P<0.05) of triglycerides, glucose, ALT, AST, LDH, CK and a significant reduction (P<0.05) of the HDL-C/TC ratio, at the same time created lipid accumulation in liver cells in CHD, positive control and ESSO groups in comparison with negative control group at the end of the first period. These negative influences were alleviated in ESSO group by administration of ESSO at the end of second period. In conclusion, The examined cold pressed ESSO has effective hypolipidemic and hepatoprotective effects in Syrian hamsters with hyperlipidemia and NAFLD.
ERUCA SATIVA MILL SEEDS OIL ALLEVIATES HYPERLIPIDEMIA AND NONALCOHOLIC FATTY LIVER DISEASE IN SYRIAN HAMSTER
(Journal of Animal & Plant Sciences, 2022) Alhilal, M.; Sulaiman, Y.A.M.; Subuh, A.M.; Habra, N.; Alhilal, S.
The impact of oils rich in long chain monounsaturated fatty acids (LCMUFA) against hyperlipidemia and non-alcoholic fatty liver disease (NAFLD) has been inadequately described. In addition, the chemical solvents and the high temperature used in vegetable oils extraction process from seeds cause severe loss of many vital compounds. So the goal of this paper was to examine the effect of cold pressed Eruca sativa Mill seeds oil (ESSO), as a source of LCMUFA, on hyperlipidemia and NAFLD in Syrian hamster. The ESSO content of fatty acids was analyzed using chromatographic methods. Fifty two (52) healthy male golden Syrian hamsters used in this experiment were randomly divided into 4 groups (Completely Randomized Design). Negative control group, CHD group, positive control group and ESSO group. This experiment was achieved in two periods. The first period continued 4 weeks, in which hyperlipidemia and NAFLD were induced in CHD, positive control and ESSO groups through feeding on a hyperlipidemic diet. The second period also lasted 4 weeks, in which ESSO was orally gavaged at 2 g/kg of the body weight daily to animals of ESSO group. The levels of total cholesterol (TC), triglycerides, HDL-C and glucose and the activities of ALT, AST, ALP, LDH and CK were analysed in the serum. One way analysis of variance (ANOVA) followed by Duncan's multiple range test was used for statistical analysis. The consumption of hyperlipidemic diet for 4 weeks caused a significant raise (P<0.05) of triglycerides, glucose, ALT, AST, LDH, CK and a significant reduction (P<0.05) of the HDL-C/TC ratio, at the same time created lipid accumulation in liver cells in CHD, positive control and ESSO groups in comparison with negative control group at the end of the first period. These negative influences were alleviated in ESSO group by administration of ESSO at the end of second period. In conclusion, The examined cold pressed ESSO has effective hypolipidemic and hepatoprotective effects in Syrian hamsters with hyperlipidemia and NAFLD.
Induction of apoptosis in human hormone-refractory prostate cancer cell lines by using resveratrol in combination with AT-101
(Wiley, 2021) Aktepe, Necmettin; Yukselten, Yunus
The aim of this study was to determine the appropriate doses of AT-101 and resveratrol combination in the in vitro hormone-refractory prostate cancer (PC) cell lines, in order to evaluate the cytotoxic and genotoxic effects of this combination on the proliferation of cancer cells, namely PC-3, DU-145 and LNCAP. Cytotoxicity in PC cell lines was analysed by using the XTT Cell Proliferation Assay. DNA damage was performed with the cell death assay. Apoptotic protein levels were performed by Roche Human Apoptosis Array. IC50 values were determined by XTT analysis. The strongest combined doses (100 µM resveratrol + 5µM AT-101) were found to have the strongest synergistic apoptotic and cytotoxic effects on DU-145 cells at 72 hr. While the combined use of resveratrol and AT-101 increased the expression of markers in apoptotic cell pathways on cells, a decrease in the expression of anti-apoptotic markers was detected (p ˂ 0.05). Combined applications of these compounds showed an important synergism in the hormone-refractory PC cell lines, and it was determined that after the post-translational modification, they were significantly effective on the apoptotic pathway. These results have revealed that the combination of resveratrol and AT-101 holds great expectation as a new chemotherapeutic application in the treatment of human prostate cancer.
Seven-membered Rings with Three Heteroatoms: Chemistry of 1,2,5-and 1,4,5-Thiadiazepines
(BENTHAM SCIENCE PUBL LTD, 2018) Doğru Mert, Başak; Elattar, Khaled M.
This review describes the chemistry of 1,2,5- and 1,4,5- thiadiazepines. The investigated heterocycles are monocyclic and fused 1,2,5- and 1,4,5- thiadiazepines. The different sections cover: structural elucidation "spectroscopy", reactivity of substituents attached to ring carbon and nitrogen atoms, synthesis of monocyclic and fused heterocycles incorporated 1,2,5- and 1,4,5- thiadiazepine moiety. Nitrogen and sulfur atoms of thiadiazepine ring system have the ability to donate the electrons pairs in order to form coordination bonds forming different complexes. The aim of this review is to discuss the chemistry of title compounds up till now. The reaction mechanisms are described and discussed, as well as, the biological applications of the target compounds.
Synthesis of Novel Acyclic Nucleoside Analogue Starting From 6-Aminouracil as Potent Antimicrobial Agent
(Polycyclic Aromatic Compounds, 2021) Alhilal, Mohammad; Sulaiman, Yaser A. M.; Alhilal, Suzan; Gomha, Sobhi M.; Ouf, Salama A.
6-Aminouracil and 2-bromoethyl amine were prepared, as starting materials to be introduced as an alkylating reagent with sodium carbonate as a catalyst. Acyclic nucleoside was prepared for the first time, the expected structure of the final new compound 3 was determined based on IR, NMR, and mass spectroscopy, with safe and mild reaction conditions. The synthesized acyclic nucleoside has a potent and efficient antimicrobial activity compared to reference drugs particularly as an antibacterial agent, and can be used as an alternative to the commonly used antibiotics after performing the necessary biological research for its validation.

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