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Two new species of Zodarion Walckenaer, 1826 (Araneae: Zodariidae) from Turkey
(Magnolia Press, 2021) Coşar, İlhan
Two new species of the megadiverse genus Zodarion Walckenaer, 1826, from the Aegean and Southeastern Anatolian regions of Turkey are described and illustrated: Zodarion bozdagensis spec. nov. (male,female) from Izmir and Zodarion siirtensis spec. nov. (male) from Siirt. This contribution increases the total number of Zodarion species to 23 for Turkey. The distribution of these species in Turkey is also mapped.
The role of Bax/Bcl-2 and Nrf2-Keap-1 signaling pathways in mediating the protective effect of boric acid on acrylamide-induced acute liver injury in rats
(Pergamon-Elsevier Science Ltd, 2022) Cengiz, Mustafa; Ayhancı, Adnan; Akkemik, Ebru; Şahin, İlknur Kulcanay; Gür, Fatma; Bayrakdar, Alpaslan; Cengiz, Betül Peker
Introduction: This study aims to investigate whether boric acid (BA) can protect rats from acrylamide (AA)induced acute liver injury. Materials and methods: AA was used to induce acute liver injury. Thirty rats were divided into five group including Group 1 (saline), Group 2 (AA), Group 3 (20 mg/kg BA), Group 4 (10 mg/kg BA+AA) and Group 5 (20 mg/kg BA+AA). Their blood and liver were harvested to be kept for analysis. Liver function enzyme activities were performed by spectrophotometric method. Catalase (CAT), superoxide dismutase (SOD) activity, and malondialdehyde levels were determined by colorimetric method. The in-silico studies were performed using the blind docking method. Results: Administration AA to rats, biochemical parameters, liver histology, and expression levels of apoptotic markers were negatively affected. However, after the administration of BA, the altered biochemical parameters, liver histology, and expression levels of apoptotic markers were reversed. Moreover, the mechanisms of AA-induced deterioration in the levels of SOD, CAT, and Nrf2-Keap-1 and the mechanisms of the protective effect of BA against these deteriorations were explained by in silico studies. Conclusion: Thus, the present study could explain the interactions between AA and thiol-containing amino acid residues of Keap-1, the effect of BA on these interactions, and the biochemical toxicity caused by the AA. In this sense, this work is the first of its kind in the literature. Based on the biochemical, histopathological, and in silico results, it can be suggested that BA has the potential to be used as a protective agent against AA-induced liver injury.
Nutrition Literacy and Quality of Life of University Students: Evidence from a Cross-Sectional Survey
(Mashhad Univ Med Sciences-Iranian Assoc Health Educ & Health Promotion, 2024) Ceylan, Jiyan Aslan; Gümüş, Aylin Bayındır
Background and Objectives: Nutrition literacy is a concept that improves individuals' diet quality, and quality of life and contributes to enhancing their general health by using and interpreting nutrition-related information correctly. This study purposed to determine the nutritional literacy and quality of life levels of university students and relate them with anthropometric measurements. Materials and Methods:This is a cross-sectional study and was conducted with 374 university students over the age of 18 at a state university. Nutrition literacy was assessed by using the Evaluation Instrument of Nutrition Literacy on Adults (EINLA), and quality of life was evaluated with the World Health Organization's Quality of Life Questionnaire (Turkish_WHOQOL-BREF). Waist, middle-upper arm, neck circumference, body weight, and height were measured in accordance with appropriate techniques by researchers. Independent t and One-Way ANOVA tests were used to determine differences between two and more than two mean values. Pearson correlation analysis was used to detect relationships between scores of total EINLA, its sections, total Turkish_WHOQOL-BREF and its dimensions, and other variables. Results: The mean EINLA and WHOQOL-BREF scores of the participants were 25.3 +/- 4.7 (borderline) and 54.3 +/- 15.1, respectively. While the EINLA score varied according to gender, faculty (health sciences vs others), and degree (1 to 4), the WHOQOL-BREF score varied according to gender and living place (home vs dormitory). EINLA and WHOQOL-BREF scores of BMI (underweight to obese), waist circumference, and neck circumference (normal vs at risk) groups were not different. It was found positive significant relationships between the second section of EINLA (reading comprehension and interpretation) and psychological health, the third section of EINLA (food groups), and social relationships (p<0.05). Conclusion: Nutrition literacy, anthropometric measurements, and quality of life of university students are affected by a multifactorial situation.
Novel Tricyclo[4.2.1]Nonane and Bicyclo[2.2.1]Heptane Derivatives: Synthesis, in Vitro Biological Activities and in Silico Studies
(Wiley-V C H Verlag Gmbh, 2024) Sarıkaya, Meryem Keçeci; Yağlıoğlu, Ayşe Şahin; Ceylan, Mustafa; Yırtıcı, Ümit
The target benzothiazole derivatives (8a-g) were synthesized starting from norbornene. The addition of dichloroketene to norbornene followed by the reduction of chlorine atoms were synthesized tricyclo[4.2.1.02,5]non-7-en-3-one (4). The condensation of benzaldehyde derivatives with compound 4 were obtained chalcone analogs (6a-g). Finally, benzothiazole derivatives (8a-g) were obtained by the reaction of the chalcone analogs with 2-aminobenzothiol in an acidic medium. The antiproliferative activities of compounds 6a-g and 8a-g were determined against C6 (rat brain tumor) and HeLa (human cervical carcinoma) cell lines using a BrdU cell proliferation ELISA assay with 5-fluorouracil (5-FU) as a standard. In both series, when compared with 5-FU (IC50=3.8 mu M for C6 and 16.33 mu M for HeLa), the most active compounds against C6 cells were 6a and 8g with IC50 values of 14.13 mu M and 29.99 mu M, respectively. With this, 6a, 6e, 6f, and 8b were the most active compounds against HeLa cells with IC50 values of 0.8, 1.21, 19.33 and 18.13 mu M, respectively. Additionally, the SwissADME online web tool was used to predict the physicochemical and ADME properties of the tested compounds. The results showed that all compounds possess promising predicted physiochemical and pharmacokinetic properties and comply with Lipinski's rule of 5, indicating that they are predicted to be orally bioavailable that they possess a predicted bioavailability score of 0.55. Furthermore, in the SwissADME Boiled-Egg chart, all compounds showed high predicted GIT absorption, while compounds 6a-g showed blood-brain barrier (BBB) permeation, and compounds 8a-g did not. Moreover, none of the compounds was (P-gp) substrates. This study investigated the potential interactions between the antiapoptotic proteins Bcl-2, Bcl-xl, Bcl-w, Brag-1, Bfl-1, and Mcl-1 and compounds 6a, 8b, and 8g through molecular docking studies. The findings suggest that these compounds may effectively inhibit antiapoptotic proteins, as evidenced by significant hydrogen bonds and hydrophobic interactions, particularly with Bcl-xl.
Notes on the genus Stalagtia from Turkey with description of a new species (Araneae, Dysderidae)
(Magnolia Press, 2023) Coar, Lhan; Danışman, Tarık; Yağmur, Erşen Aydın; Kunt, Kadir Boğaç
[Abstract No tAvailable]
New Diacetic Acids Containing Quinazolin-4(3H)-one: Synthesis, Characterization, Anticholinergic Properties, DFT Analysis and Molecular Docking Studies
(Wiley-V C H Verlag Gmbh, 2023) Tokalı, Feyzi Sinan; Sağlamtaş, Rüya; Öztekin, Aykut; Yırtıcı, Ümit; Çomaklı, Veysel
In this study, a new series of quinazolin-4(3H)-ones, which constitute an important part of biologically active heterocyclic compounds, were synthesized with excellent yields (99-94 %). The structures of the synthesized compounds (1-14) were characterized with Fourier-transform infrared (FTIR), nuclear magnetic resonance (H-1 NMR - C-13 NMR), and high-resolution mass spectroscopy (HRMS). Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibition properties were examined to evaluate the anticholinergic properties of the synthesized compounds. For AChE, molecules showed IC50 in ranging of 16.27-9.12 mu M and K(i)s in ranging of 19.20 +/- 0.68-4.83 +/- 0.19 mu M. For BChE, molecules showed IC50 in ranging of 16.77-8.50 mu M and K(i)s in ranging of 10.35 +/- 2.15-3.38 +/- 0.25 mu M. Molecular docking was performed to determine the predicted interactions between the synthesized molecules and enzymes. Additionally, Density-functional theory (DFT) studies were also carried out to clarify the electronic structures of compounds.
Natural flavonoids as promising lactate dehydrogenase A inhibitors: Comprehensive in vitro and in silico analysis
(Wiley-V C H Verlag Gmbh, 2024) Yırtıcı, Ümit
The inhibitory potential of 17 flavonoids on lactate dehydrogenase A (LDHA), a key enzyme in the downstream process of aerobic glycolysis in cancer cells, is investigated. Fisetin exhibited excellent inhibitory activity (IC50 = 0.066 mu M). Quercetin 3-beta-D-glucoside, quercetin 3-galactoside, luteolin, neoeriocitrin, and luteolin 7-O-beta-D-glucoside showed good inhibitory activity (IC50 = 1.397-15.730 mu M). Biochanin A, baicalein, quercetin, scutellarein-7-glucuronide, diosmetin, baicalein 7-O-beta-D-glucuronide, and apigenin 7-apioglucoside demonstrated moderate inhibitory activity (IC50 = 33.007-86.643 mu M). Eriodictyol, quercetin 7-O-beta-D-glucoside, apigenin 7-O-beta-D-glucoside, and epicatechin were inactive. The Lineweaver-Burk plot showed that fisetin competitively inhibits NADH binding (Ki = 0.024 mu M). Ki values for other compounds were calculated using the Cheng-Prusoff equation (Ki = 0.2799-2.1661 mu M). The study revealed that the inhibitory effect of flavonoids varies with the number and position of OH groups and bound sugars. Molecular docking analyses indicated that flavonoids exhibited strong interactions with the NADH binding site of LDHA through hydrophobic interactions and hydrogen bonds. Molecular dynamic simulations tested the stability of the fisetin-LDHA complex over 100 ns and showed fisetin's high binding affinity to LDHA, maintaining strong hydrogen bonds. The binding energy of fisetin with LDHA was -33.928 kcal/mol, indicating its effectiveness as an LDHA inhibitor. Consequently, flavonoids identified as strong inhibitors could be potential cancer treatment sources through LDHA inhibition. Fisetin, quercetin 3-beta-D-glucoside, quercetin 3-galactoside, and luteolin are shown to exhibit powerful inhibition effects, with IC50 values between 0.066 and 1.792 mu M. The details of possible interactions with the active site of lactate dehydrogenase A were analyzed by molecular docking and molecular dynamics simulation. image
Natural flavonoids as promising 6-phosphogluconate dehydrogenase inhibitor candidates: In silico and in vitro assessments
(Wiley-V C H Verlag Gmbh, 2024) Adem, Şevki; Yırtıcı, Ümit; Aydın, Mesut; Rawat, Ravi; Eyüpoğlu, Volkan
The primary strategy in the fight against cancer is to screen compounds that may be effective on different types of cancer. Compounds from plants seem to be a good source. The present study investigated the inhibitory effects of some flavonoids on the 6-phosphogluconate dehydrogenase (6-PGD) enzyme. We determined that quercetin, myricetin, fisetin, morin, apigenin, and baicalein exhibited powerful inhibition effects with IC50 values between 4.08 and 21.26 mu M, while luteolin, kaempferol, apiin, galangin, and baicalin showed moderate effects with IC50 values between 54.15 and 138.91 mu M. Quercetin competitively inhibited the binding of NADP and 6-phosphogluconate to the 6-PGD enzyme with Ki values of 0.527 +/- 0.251 and 0.374 +/- 0.138 mu M, respectively. We calculated Ki values using the Cheng-Prusoff equation as between 0.44 and 14.88 mu M. The possible interaction details of polyphenols with the active site of 6-PGD were analyzed with docking software. In silico and in vitro studies indicated that the -OH groups on the A and C ring of flavonoids bind to the enzyme's active site via hydrogen bonding, while the -OH groups on the C ring contributed significantly to the increase in the inhibitory potentials of the molecules. Molecular dynamic simulations tested the stability of the 6-PGD-quercetin complex during 100 ns. These phytochemicals were suitable for drug use when optimized with absorption, distribution, metabolism, excretion, and toxicity (ADMET) criteria. The effects of the studied compounds on cancer cell lines of potential targets were demonstrated by network analysis. In conclusion, this study suggests that flavonoids found to be potent inhibitors could serve as leading candidates to treat many cancers via 6-PGD inhibition. Quercetin, myricetin, fisetin, morin, apigenin, and baicalein are shown to exhibit powerful inhibition effects with IC50 values between 4.08 and 21.26 mu M. The interaction details with the active site of 6-phosphogluconate dehydrogenase were analyzed by molecular docking and molecular dynamics simulation software. These phytochemicals were generally suitable for drug use when optimized according to absorption, distribution, metabolism, excretion, and toxicity (ADMET) criteria.image
Blood and Stool Arsenic Levels Are Decisive for Diagnosing Children's Functional Gastrointestinal Disease (FGD)
(Springernature, 2022) Bilici, Namık; Doğan, Erkan; Sevinç, Eylem; Sevinç, Nergiz; Akıncı, Gülsema; Musmul, Ahmet; Cengiz, Mustafa
Pediatric gastroenteritis is a potentially fatal disease that accounts for 10% of childhood deaths. The main risk is environmental factors and nutrition. Arsenic (As) is commonly found in the earth's crust. As is an essential element that can form many organic compounds. In children, it causes diarrhea, gums, tongue lesions, diabetes, conjunctivitis, ocular opacity, and impaired immune response. It also causes low growth, mental retardation, and neurological problems. It is also known as the cause of many cancers that originate at an early age. Regionally, there is an iron and steel industry for almost a century. According to the Rome IV criteria, the blood and stools of 50 children aged 6-18 years, male and female, living in our province with functional gastrointestinal disease (FGD), were screened for As, and compared with the Healthy group (control) of 30 children. The results were evaluated with the Mann-Whitney Rank Sum Test. When blood and stool As values in males were compared with control samples, a high level of significance (p = 0.001) was found between both blood and stool As values in sick males and the control group (p < 0.005). In females, blood and stool As median values were also highly significant when compared with the control group (p = 0.001). According to these data, when the sick children (children with male and female gender) are compared with the healthy ones, the difference is highly significant (p < 0.005). High blood As levels in children indicate environmental pollution. It can be said that blood As levels are high as a result of food, water, and inhaler exposure. The presence of a high level of significant difference in stool means that the amount of As is high in the foods consumed daily. High levels of As are in blood and stools; It was evaluated that FGD could be the cause of nausea, diarrhea, vomiting, and colic. The increase in blood and stool As values due to environmental pollution is an important reason for FGD. For diseases of uncertain cause (such as FGD) resulting from chronic As exposure, blood and especially stool As values are more significant than urinary As levels. In conclusion, As a diagnostic criterion, it was concluded that blood and stool As values are an important marker in children with functional abdominal pain with other metals.
A new species of Zodarion (Araneae: Zodariidae) from Turkey
(Taylor & Francis Ltd, 2021) Coşar, İlhan
A new species of spider similar to Zodarion van Bosmans, 2009 is described based on material of both sexes from Kahramanmaras province, Turkey. Characteristics features and photographs of new species and Zodarion van Bosmans, 2009 are presented.
Technology in nursing education: Augmented reality
(Pamukkale Univ, 2021) Pınar Martlı, Emine; Ünlüsoy Dinçer, Nigar
The augmented reality technology, in which virtual images are combined with real world objects in real time, has begun to take part in the education of Generation Z, 21st century youth. Today, augmented reality applications that contribute to the learning process are also utilized in the field of nursing education. When database research is conducted with the combinations of nursing education and augmented reality keywords, it is seen that various augmented reality applications are used for improving English proficiency, anatomy knowledge and some of the nursing practices of nursing students. Research results show that students' learning experiences are improved with the use of augmented reality method thus learning becomes interesting and useful. This review includes the definition of augmented reality technology which increases the reality of environment and improves learning by embodying abstract concepts, its importance and place in nursing education, and the results of various studies on this subject.
Contributions to the genus Zodarion Walckenaer, 1826 in Turkey, with the description of a new species (Araneae: Zodariidae)
(Tubitak Scientific & Technological Research Council Turkey, 2021) Coşar, İlhan; Danışman, Tarık; Yağmur, Ersen Aydın
In this paper, two species are newly recognized in Turkey. One is new to science, described as Zodarion kunti sp. n. (male, female) from southeast Anatolian region. The other, Zodarion christae Bosmans, 2009 is found for the first time in Denizli, Antalya, and Mugla provinces.
Centaurea fenzlii Reichardt Özütünün Antioksidan Özellikleri ve Enzim İnhibisyon Etkisinin Belirlenmesi
(2019) Yırtıcı, Ümit
Bu çalışmada Centaurea fenzlii Reichardt bitkisinin antioksidan özellikleri ve çeşitli enzimler üzerine inhibe edici etkisi araştırıldı. Bu amaçla çiçeklenme döneminde toplanan Centaurea fenzlii Reichardt’ın toprak üstü kısımları farklı polariteye sahip çözücülerde maserasyon yöntemi kullanılarak çözüldü ve ekstreleri elde edildi. Çalışmalara metanol ekstresi ile devam edildi. Metanol ekstresinin toplam fenolik ve flavonoid içerikleri sırasıyla, 16,72 mg GAE/g ka ve 173,16 mg KAE/g ka olarak belirlendi. Antioksidan kapasiteleri demir indirgeyici gücü (FRAP) için 0,256 mmol TE/g ka, bakır indirgeyici gücü (CUPRAC) için 0,878 mmol TE/g ka, ABTS için 0,354 mmol TE/g ka ve DPPH için 0,661 mmol TE/g ka olarak saptandı. Ayrıca, ekstrelerinin kolinesteraz, ?-amilaz, ?-glukozidaz ve tirozinaz enzimlerine karşı inhibe edici etkileri de belirlendi. Enzim inhibisyon etkisi sırasıyla, ?-Glukozidaz için 0,331 mmol AKE/g ka, ?-Amilaz için 0,354 mmol AKE/g ka, AChE için 0,367 mmol GAE/g ka, BChE için 0,878 mmol GAE/g ka ve Tirozinaz için mmol 0,256 KE/g ka olarak bulundu.
A New Species Of The Genus Zodarion Walckenaer, 1826 (Araneae: Zodariidae) From Turkey
(AMER ENTOMOL SOC, 2020) Danisman, Tarik; Cosar, Ilhan
Anew species, Zodarion izmirense sp. nov. is described and illustrated based on material collected in the Izmir Province of Turkey. Differences between the new species and the closely related Zodarion tireboluensis Danisman and Rubio, 2017 are discussed.
Protective Effects of Boron on Cyclophosphamide-Induced Bladder Damage and Oxidative Stress in Rats
(HUMANA PRESS INC, 2020) Ayhancı, Adnan; Tanriverdi, Döndü Tuğçe; Şahintürk, Varol; Cengiz, Mustafa; Appak-Baskoy, Sıla; Şahin, İlknur Kulcanay
This study aims to investigate protective effects of boron against cyclophosphamide-induced bladder toxicity that produces oxidative stress and leads to apoptosis of the cells. In total, 24 rats were divided into 4 equal groups. The control group received saline. The 2nd experimental group received 200 mg kg of cyclophosphamide i.p. on the 4th day while the 3rd group was given only boron (200 mg kg, i.p.) for 6 days. In the 4th group, boron was given for 6 days and cyclophosphamide (200 mg kg, i.p.) was administrated on the 4th day. Twenty-four hours after the last boron or cyclophosphamide administration, rats were sacrificed under anesthesia. Bladder tissues of rats were taken for histological and immunohistochemical (apoptotic markers such as caspase-3, bcl-2, and bax) and blood was taken for the biochemical (serum total thiol, serum natural thiol, serum thiol-disulfide) analysis. Transient epithelial thinning, edema, marked inflammatory reaction, and bleeding were observed in bladders of the group that received cyclophosphamide. Also, the activity of bax and caspase-3-positive cells increased while the number of bcl-2-positive cells decreased. In the same group, serum natural thiol and total thiol levels decreased while serum disulfide levels increased, which indicates oxidative stress. On the other hand, in the boron+cyclophosphamide group pretreatment with boron protected, the bladder tissue and the number of bcl-2-positive cells increased, and bax and caspase-3-positive cells decreased, showing antiapoptotic effects of boron against cyclophosphamide-induced toxicity. In parallel with the findings of this group, native thiol and total thiol levels increased and serum disulfide levels decreased pointing out to a decreased oxidative stress. Our results indicate that boron pretreatment significantly protects rat bladder against cyclophosphamide-induced bladder damage due to its antiapoptotic and antioxidant properties.
Cyclophosphamide induced oxidative stress, lipid per oxidation, apoptosis and histopathological changes in rats: Protective role of boron
(ELSEVIER GMBH, 2020) Cengiz, Mustafa; Sahinturk, Varol; Yildiz, Songul Cetik; Sahin, Ilknur Kulcanay; Bilici, Namik; Yaman, Suzan Onur; Altuner, Yilmaz
Background: Cyclophosphamide (CP) is an alkylating chemotherapeutic drug used in the treatment of many types of cancer. However, as with other chemotherapeutic drugs, the use of CP is limited by the damage to healthy tissues such as testes, bladder and liver as well as cancerous tissue. Boron (B) is a trace element with many biological properties such as antioxidant, anti-apoptotic and anti-lipid per oxidation. Methods: This current study aims to determine protective effects of B on CP induced testicular toxicity. The rats were divided into 4 groups (control, CP, B and B plus CP groups). The testes of experimental animals were taken for histological, apoptotic markers and biochemical analysis. Results: The damage to some seminifer tubules, loss of typical appearance, thinning of seminifer epithelium and relative enlargement of the tubule lumen were watched in testis of the group that administrated CP. Moreover, Bcl-2, TAC and GSH levels decreased while TOC, OSI, MDA, Bax and Caspase-3 levels increased. On the other hand, pretreatment limited to B in the B plus CP group, testicular tissue improved. In addition, Bcl-2, GSH, TAC levels increased, Bax, MDA, TOC, OSI and caspase-3 levels decreased. Conclusion: B significantly reduced testicular lipid per-oxidation and strengthened antioxidant defenses. Our results showed that pre-treatment B can protect rat testis against CP-induced testicular damage owing to its anti-lipid per oxidation, anti-oxidant and anti-apoptotic properties.
Hepato-preventive and anti-apoptotic role of boric acid against liver injury induced by cyclophosphamide
(Elsevier Gmbh, 2019) Cengiz, Mustafa; Yildiz, Songul Cetik; Demir, Cemil; Sahin, Ilknur Kulcanay; Teksoy, Ozgun; Ayhanci, Adnan
This study aims to examine cyclophosphamide (CP) exsposure associated toxicity on rat livers and the likely defensive effects of boric acid (BA). The rats used in this study were divided into four groups: control group, CP group, BA group, and BA + CP group. The present study was carried out using routine histological H&E stain, immunohistochemical stain caspase-3 as apoptotic marker, serum biochemical analysis for liver function markers (alanine transaminase (ALT), aspartate transaminase (AST) and alkalen phosphatase (ALP)), oxidative stress markers (total oxidant status (TOS), oxidative stress index (OSI) and total antioxidant capacity marker (TAC)). In the CP group, the levels of ALT, AST, ALP, TOS, OSI and caspase-3 increased whereas TAC levels decreased compared with the control group. In the BA + CP group, the levels of ALT, AST, ALP, TOS, OSI and caspase-3 decreased whereas TAC levels increased compared with the CP group. The histopathological evaluation of light microscope images and immunohistochemical caspase-3 activity in the BA + CP group were found to be decrease compared with those in the CP group. In conclusion, BA was successful in defending the liver against apoptosis and histopathological changes that are attributable to CP.
The Investigation of the Cox-2 Selective Inhibitor Parecoxib Effects in Spinal Cord Injury in Rat
(Taylor & Francis Inc, 2019) Yuksel, Ulas; Bakar, Bulent; Dincel, Gungor Cagdas; Yildiran, Fatma Azize Budak; Ogden, Mustafa; Kisa, Ucler
Aim: Today, spinal cord injury (SCI) can be rehabilitated but cannot be treated adequately. This experimental study was conducted to investigate possible beneficial effects of methylprednisolone and parecoxib in treatment of SCI. Materials and methods: Forty-eight male Wistar albino rats were assigned into CONTROL, acute (MP-A, PX-A, and PXMP-A), and subacute (MP-S, PX-S, and PXMP-S) stage groups. Then, to induce SCI, a temporary aneurysm clip was applied to the spinal cord following T7-8 laminectomy, except in the CONTROL group. Four hours later parecoxib, methylprednisolone, or their combination was administered to rats intraperitoneally except CONTROL, SHAM-A, and SHAM-S groups. Rats in the acute stage group were sacrificed 72 h later, and whereas rats in the subacute stage were sacrificed 7 days later for histopathological and biochemical investigation and for gene-expression analyses. Results: Parecoxib and methylprednisolone and their combination could not improve histopathological grades in any stage. They also could not decrease malondialdehyde or caspase-3, myeloperoxidase levels in any stage. Parecoxib and methylprednisolone could decrease the TNF-alpha gene expression in subacute stage. Methylprednisolone could increase TGF-1 beta gene-expression level in acute stage. Conclusion: Neither of the experimental drugs, either alone or in combination, did not show any beneficial effects in SCI model in rats.
Elevated Tear Human Neutrophil Peptides 1-3, Human Beta Defensin-2 Levels and Conjunctival Cathelicidin LL-37 Gene Expression in Ocular Rosacea
(Taylor & Francis Inc, 2019) Gokcinar, Nesrin Buyuktortop; Karabulut, Ayse Anil; Onaran, Zafer; Yumusak, Erhan; Yildiran, Fatma Azize Budak
Purpose: To investigate the role of innate immunity in ocular rosacea. Methods: Thirty-two patients with ocular rosacea patients (group-1) and 28 healthy volunteers (group-2) who served as controls were enrolled in the study. Tear function parameters were assessed, conjunctival impression cytology was performed and tear samples were collected. Human-neutrophil-peptides (HNP) 1?3 and human-beta-defensin-2 (hBD-2) levels were measured in tears by using ELISA tests. Cathelicidin leucin-leucin-37 (LL-37), hBD-2, human-beta-defensin-9 (hBD-9) gene expression levels were measured in the conjunctival impression cytology samples using real-time polymerase chain reaction. Results: Tear HNP1-3 (p?=?0.024), hBD-2 (p?
Cytotoxic and apoptotic effects of endemic Centaurea fenzlii Reichardt on the MCF-7 breast cancer cell line
(Tubitak Scientific & Technical Research Council Turkey, 2017) Yirtici, Umit; Goger, Fatih; Sarimahmut, Mehmet; Ergene, Aysun
The main purpose of this study was to analyze the cytotoxic activity of an extract obtained from Centaurea fenzlii Reichardt, and the fractions eluted from this extract, in breast cancer cells. After isolation and structural analysis of the fractions were conducted, a meaningful cytotoxic effect was indicated. The goal of the analysis was to reveal the mechanism by which this effect occurs through researching the apoptotic side of these fractions and determining the amount of several proteins that are the products of the genes. Test substances were applied to breast cancer cells and the inhibitory concentration value 50 (IC50) that caused a cytotoxic effect was determined using MTT and ATP assays. The Centaurea fenzlii Reichardt dichloromethane extracts-ethyl acetate fractions (CFDCM-EAF) exhibited a stronger growth-inhibitory effect on MCF-7 cells (45.771 mu g/mL). The apoptotic effect was studied using double staining and flow cytometry. The death rate in the cells treated with the CFDCM-EAF IC50 dose was approximately 90%: 9.2% living cells, 22.8% necrotic cells, 62.3% late apoptotic cells, and 5.8% early apoptotic cells. Structural analysis of the CFDCM-EAF, which indicated significant cytotoxic effects, was performed using chromatographic methods. Hispidulin was the major component of the CFDCM-EAF by LC-APCI-MS/MS analysis.

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