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Abdurahman MA, Durukan İ, Dinçer T, Pektaş S, Karataş E, Kiliç AO. Staphylococcus aureus Bacteriophage 52 Endolysin Exhibits Anti-Biofilm and Broad Antibacterial Activity Against Gram-Positive Bacteria. Protein J 2023; 42:596-606. [PMID: 37634214 DOI: 10.1007/s10930-023-10145-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2023] [Indexed: 08/29/2023]
Abstract
Bacteriophage endolysins have been shown to hold great promise as new antibacterial agents for animal and human health in food preservation. In the present study, endolysin from Staphylococcus aureus subsp. aureus ATCC 27692-B1 bacteriophage 52 (LysSA52) was cloned, expressed, and characterized for its antimicrobial properties. Following DNA extraction from bacteriophage 52, a 1446-bp DNA fragment containing the endolysin gene (lysSA52) was obtained by PCR amplification and cloned into pET SUMO expression vector. The positive clone was validated by sequencing and open-reading frame analysis. The LysSA52 sequence shared high homology with staphylococcal phage endolysins of the SA12, SA13, and DSW2 phages and others. The cloned lysSA52 gene encoding 481 amino acids endolysin was expressed in Escherichia coli BL21 with a calculated molecular mass of 66 kDa (LysSA52). This recombinant endolysin LysSA52 exhibited lytic activity against 8 of 10 Gram-positive bacteria via agar spot-on lawn antimicrobial assay, including methicillin-resistant Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus haemolyticus, Streptococcus pneumonia, Streptococcus pyogenes, Enterococcus faecium, Enterococcus faecalis, and Bacillus atrophaeus. In addition, the 0.50 mg/mL, LysSA52 endolysins reduced about 60% of the biofilms of S. aureus and S. epidermidis established on a microtiter plate in 12 h treatment. The data from this study indicate that LysSA52 endolysin could be used as an antibacterial protein to prevent and treat infections caused by staphylococci and several other Gram-positive pathogenic bacteria irrespective of their antibiotic resistance.
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Affiliation(s)
- Mujib Abdulkadir Abdurahman
- Department of Medical Microbiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, 61080, Turkey
- Department of Microbial, Cellular, and Molecular Biology, Faculty of Natural Science, Addis Ababa University, Addis Ababa, Ethiopia
| | - İnci Durukan
- Department of Medical Microbiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, 61080, Turkey
| | - Tuba Dinçer
- Department of Medical Biology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Serap Pektaş
- Department of Chemistry, Faculty of Arts and Sciences, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ersin Karataş
- Department of Medical Services and Techniques, Patnos Vocational School, Ağrı İbrahim Çeçen University, Ağrı, Turkey
| | - Ali Osman Kiliç
- Department of Medical Microbiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, 61080, Turkey.
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Kumaş-Kulualp M, Gepdiremen A, Karataş E, Eşrefoğlu M. Clemizole hydrochloride, a potent TRPC5 calcium channel inhibitor, prevents cisplatin-induced nephrotoxicity in Spraque-Dawley rats. J Biochem Mol Toxicol 2023:e23372. [PMID: 37102204 DOI: 10.1002/jbt.23372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 02/22/2023] [Accepted: 04/14/2023] [Indexed: 04/28/2023]
Abstract
Cis-diamminedichloroplatinum (II) (cisplatin, Cis) is widely employed to treat several types of cancer. It has many important toxic side effects; one of the most important of which is nephrotoxicity. Clemizole hydrochloride (Clem) as the most potent inhibitor of TRPC5 channels was tested in an animal model of Cis-induced nephrotoxicity. Rats were divided into the following groups: control; Cis (8 mg/kg); Cis + 1 mg/kg Clem; Cis + 5 mg/kg Clem; Cis + 10 mg/kg Clem. Kidney injury was detected by histopathological and biochemical analysis. Urine urea nitrogen (UUN), creatinine, urine neutrophil gelatinase-associated lipocalin (NGAL), serum catalase (CAT), and malondialdehyde (MDA) levels were determined by enzyme-linked immunosorbent assay. Total antioxidant status (TAS) and total oxidant status (TOS) were studied using a colorimetric assay. Nephrin, synaptopodin, and Rac family small GTPase 1 (RAC1) expressions were detected by Western blot analysis. Cis was found to induce histopathological alterations, including tubular degeneration, congestion, hemorrhage, hyaline casts, glomerular collapse, and apoptotic cell death. Clem at a dose of 1 and 5 mg/kg attenuated histopathological alterations. UUN, creatinine, and NGAL levels increased in the Cis-administered group, while all doses of Clem decreased in those. CAT and TAS levels decreased, while TOS and oxidative stress index levels increased in the Cis-treated group. A dose of 1 and 5 mg Clem showed antioxidant effects against oxidative stress. Cis induced lipid peroxidation by increasing MDA levels. All doses of Clem reduced MDA levels. Nephrin and synaptopodin expressions were decreased by Cis, and all doses of Clem increased that. All doses of Clem successfully depressed RAC1 expression. Clem showed a highly ameliorating effect on toxicity caused by Cis by blocking TRPC5 calcium channels.
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Affiliation(s)
- Meltem Kumaş-Kulualp
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Akçahan Gepdiremen
- Department of Medical Pharmacology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ersin Karataş
- Department of Medical Services and Techniques, Patnos Vocational School, Agri Ibrahim Cecen University, Agri, Turkey
| | - Mukaddes Eşrefoğlu
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Karataş E, Sümbüllü M, Kahraman Ç, Çakmak F. Association between single nucleotide polymorphisms in candidate genes and success of pulpal anesthesia following inferior alveolar nerve block. J Endod 2022; 49:18-25. [PMID: 37185254 DOI: 10.1016/j.joen.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION The present study aimed to investigate the possible association between the single-nucleotide polymorphisms (SNPs) in the SCN9A, SCN10A, SCN11A, OPRM1, and COMT genes and the success rate of pulpal anesthesia after inferior alveolar nerve block (IANB). METHODS A total of 70 patients (45 females and 25 males) presenting mandibular molar teeth with symptomatic irreversible pulpitis were included. Saliva samples were collected from the participants before the application of IANB. A standard IANB was performed with 1.8 mL 4% articaine with 1:100,000 epinephrine. Endodontic treatment was initiated 15 minutes after injection, and the patients were asked to report their pain level during the procedure on a 170-mm Heft-Parker visual analog scale. If the patient recorded a pain level of lower than 54 on the visual analog scale (no pain or mild pain), the anesthesia was considered successful. The DNA isolation and genotyping were performed, and the association between rs4286289, rs6746030, rs6795970, rs6801957, rs11709492, rs1799971, rs1799973, rs4680, rs6269, rs4633, and rs740603 SNPs and the success rate of anesthesia was investigated. RESULTS The anesthesia success rate was significantly lower for the GG genotypes (45%) than the GA and AA genotypes (90%) for rs6795970 in the SCN10A gene. Additionally, the A allele for rs6795970 and the T allele for rs6801957 in the SCN10A gene were significantly associated with higher anesthesia success rates. CONCLUSIONS SNPs in the SCN10A gene affect the success rate of pulpal anesthesia after IANB.
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Varol S, Öktem F, Koçyiğit A, Doğan Demir A, Karataş E, Aydın M, Göknar N, İpekçi T. The impact of Technetium-99m dimercapto-succinic acid scintigraphy on DNA damage and oxidative stress in children. Int J Clin Pract 2021; 75:e14810. [PMID: 34487588 DOI: 10.1111/ijcp.14810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/10/2021] [Accepted: 09/03/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Technetium-99m-dimercapto succinic acid (Tc-99m DMSA) scintigraphy is a commonly used imaging modality in children with urological abnormalities. The radiopharmaceuticals, which have the effects of ionising radiation, are used in this method. This study aimed to investigate the impact of the Tc-99m DMSA scan on renal oxidative stress and mononuclear leukocyte (MNL) DNA damage. METHODS Children, who were followed up by paediatric nephrology at Bezmialem Vakif University and underwent Tc-99m DMSA scintigraphy between April 2015 and January 2016 with the indication of detection of renal scars, were included in this study. The exclusion criteria were nephrolithiasis, history of premature birth and recent urinary tract infection 3 months prior to scintigraphy or antibiotic use in the last 1 month. 3 mL heparinised blood samples were obtained just before, immediately after and 1 week after the scintigraphy. MNL DNA damage, total antioxidant status (TAS) and total oxidant status (TOS) were measured in the blood samples. The oxidative stress index (OSI) was calculated. Spot urine samples were obtained from each patient before and within 3 days after performing the scintigraphy. TAS/Creatinine (TAS/Cr), TOS/Creatinine (TOS/Cr) and N-acetyl-glucosaminidase/creatinine (NAG/Cr) levels were measured in the urine samples. RESULTS Twenty-seven children were evaluated. The values between TAS, TOS and OSI levels in serum samples at baseline, immediately after and 1 week after the scintigraphy (P = .105, P = .913, and P = .721, respectively) showed no statistically significant difference. The levels of TAS/Cr, TOS/Cr, NAG/Cr ratios and OSI, which were evaluated from urine samples before and within 3 days after the scintigraphy scan were also similar (P = .391, P = .543, P = .819 and P = .179, respectively). The levels of DNA damage only increased following scintigraphy scan and decreased a week later (P < .05). CONCLUSIONS The effect of Tc-99m DMSA scintigraphy is insufficient to create oxidative damage, but it can cause DNA damage via the direct impact of ionising radiation which can be repaired again in a short time.
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Affiliation(s)
- Selçuk Varol
- Department of Pediatrics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Department of Pediatrics, Yeşilhisar State Hospital, Kayseri, Turkey
| | - Faruk Öktem
- Department of Pediatric Nephrology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Department of Pediatric Nephrology, ADAMS Compassionate Healthcare Network, Chantilly, VA, USA
| | - Abdurrahim Koçyiğit
- Department of Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ayşegül Doğan Demir
- Department of Pediatrics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ersin Karataş
- Department of Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Department of Moleculer Biology and Genetics, Faculty of Basic Sciences, Gebze Technical University, Kocaeli, Turkey
| | - Mehmet Aydın
- Department of Nuclear Medicine, Faculty of Medicine, Bezmialem Vakıf University, İstanbul, Turkey
| | - Nilüfer Göknar
- Department of Pediatric Nephrology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Department of Pediatric Nephrology, Faculty of Medicine, İstanbul Medeniyet University, İstanbul, Turkey
| | - Tümay İpekçi
- Urology Department, Medical Faculty Alanya Practice and Research Center, Başkent University, Antalya, Turkey
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Karataş E, Temiz BE, Mumusoglu S, Yarali H, Bozdag G. P–328 Dienogest significantly decreases the size of the cyst and alters Anti-Müllerian Hormone concentration in patients with endometrioma. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Does utilization of dienogest make any impact on the size of cyst and Anti-Müllerian Hormone (AMH) concentration in patients with endometrioma throughout 12-months?
Summary answer
Although dienogest makes a gradual reduction in the size of endometrioma cyst throughout 12-months, a significant drop in AMH serum concentration was also noticed.
What is known already
According to recent studies, pre-operative serum AMH levels might be illusively increased with parallel to the size of endometrioma which will be a misleading factor while deciding to operate the patient via cystectomy. Although dienogest is one of the medical options that might be commenced in patients with endometrioma cyst, there is limited data about its effect on the size of the endometrioma and hence serum AMH concentration throughout 12 months of follow up.
Study design, size, duration
The current observational cohort study was conducted among patients with endometrioma those treated with dienogest from January 2017 to January 2020. The primary outcome was alteration in diameter of endometrioma cyst at 6th and 12th months of treatment. Secondary outcome was alteration in serum AMH concentration in the same period. Of 104 patients treated with dienogest, 44 patients were excluded due to being treated with any type of surgical intervention during follow up period.
Participants/materials, setting, methods
A total of 60 patients were recruited for the final analysis. Of them, primary symptom was dysmenorrhea, chronic pelvic pain and menstrual irregularity in 16 (26.7%), 25 (41.7%) and 8 (13.3%) patients, respectively. Eighteen patients (30%) were asymptomatic. As 21 patients had bi-lateral endometrioma, size of the leading cyst was considered to be analyzed for the primary outcome measure. Paired-t test was used for comparison of numerical values and p ≤ 0.05 was taken as statistical significance.
Main results and the role of chance
The mean age was 31.5±8.0 years. In the time point when dienogest was started, the mean size of the endometrioma was 46.3±17.4 mm. The mean serum AMH concentration was 3.6±2.4 ng/ml. After 6 months of treatment, the mean size of the endometrioma decreased to 38.6±14.0 mm which corresponds to a mean difference of 7.8 mm (95% CI: 3.0 to 12.6; p: 0.003). The respective figure for AMH was 3.3±2.7 ng/ml which corresponds to a mean difference of 0.3 ng/ml (95% CI: –0.2 to 0.8; p: 0.23) at 6 months. After 12 months of treatment, the mean size of the endometrioma was 37.5±15.7 mm which corresponds to a mean difference of 8.9 mm (95% CI: 2.9 to 14.9; p: 0.005) at the end of 12 months. The respective figure for AMH was 2.7±1.9 ng/ml which corresponds to a mean difference of 0.9 ng/ml (95% CI: 0.1 to 1.7; p: 0.045) at the end of 12 months. The mean diameter of endometrioma and AMH concentration did not differ throughout the time period between 6th and 12th months of the treatment.
Limitations, reasons for caution
Although herein we present the largest data that depicts the alteration of endometrioma cyst and AMH concentration with the application of dienogest, the lack of control group is a limitation that avoids to perform any comparison.
Wider implications of the findings: A shrinkage after commencement of treatment suggest that dienogest might present improvement in patients with endometrioma with respect to radiological findings, but further studies are required whether a decline in AMH concentration after 12 months refers to a genuine decrease in ovarian reserve or resolution of misleading high pre-treatment levels.
Trial registration number
not available
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Affiliation(s)
- E Karataş
- Hacettepe University, Obstetrics and Gynecology, Ankara, Turkey
| | - B E Temiz
- Hacettepe University, Obstetrics and Gynecology, Ankara, Turkey
| | - S Mumusoglu
- Hacettepe University, Obstetrics and Gynecology, Ankara, Turkey
| | - H Yarali
- Hacettepe University, Obstetrics and Gynecology, Ankara, Turkey
| | - G Bozdag
- Hacettepe University, Obstetrics and Gynecology, Ankara, Turkey
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Duman T, Akyüz E, Bulut H, Koçyiğit A, Tülek A, Karataş E, Kırpınar İ. Investigation of Diagnostic Proteins by 2D Electrophoresis in Major Depression Model Induced by Forced Swim Test in Rats. Protein Pept Lett 2021; 28:195-204. [PMID: 32729412 DOI: 10.2174/0929866527999200729183729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Aside from its pervasiveness, whereby it affects as much as 20% of the world's population, depression continues to be one of the most crucial psychiatric problems due to the loss of power it causes by disrupting daily life functioning, containing economic consequences, and having a high suicidal tendency. Major depression (MD) is a systemic and multifactorial disorder involving complex interactions between genetic predisposition and disturbances of various molecular pathways. OBJECTIVES In our current study, we aimed to identify the proteins obtained from serum samples that change during depression with the MD model. METHODS The MD model was applied through the forced swim test in rats. 14 Winstar Albino male rats were divided into two equal groups as follows: depression and control groups. Serum samples were separated by chromatographic methods and then compared with two-dimensional (2D) electrophoresis. RESULTS A total of 9 potential diagnostic protein sequences were identified, which were distinguished with computer software. During the last phase of the study, the Matrix-Assisted Laser Desorption/ Ionization - Time of Flight (MALDI-TOF) analysis, the previous expression sequences identified among the groups were determined and classified. By comparing protein expressions, it was concluded that 9 different points could be used together as a potential biomarker. CONCLUSION Results can help us identify a new diagnostic system that can be used to diagnose MD.
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Affiliation(s)
- Tuğçe Duman
- Department of Neuroscience, Institute of Health, Bezmialem Vakıf University, Istanbul, Turkey
| | - Enes Akyüz
- Department of Biophysics, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey
| | - Huri Bulut
- Department of Medical Biochemistry, Faculty of Medicine, Istinye University, Istanbul, Turkey
| | - Abdurrahim Koçyiğit
- Department of Medical Biochemistry, Faculty of Medicine Bezmialem Vakıf University, Istanbul, Turkey
| | - Ahmet Tülek
- Department of Molecular Biology and Genetics, Gebze Technical University, Gebze, Turkey
| | - Ersin Karataş
- Department of Molecular Biology and Genetics, Gebze Technical University, Gebze, Turkey
| | - İsmet Kırpınar
- Department of Psychiatry, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
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Karataş E, Kahraman ÇY, Akbıyık N. Association between polymorphisms in catechol-O-methyl transferase, opioid receptor Mu 1 and serotonin receptor genes with postoperative pain following root canal treatment. Int Endod J 2021; 54:1016-1025. [PMID: 33559241 DOI: 10.1111/iej.13493] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/05/2021] [Accepted: 02/05/2021] [Indexed: 11/29/2022]
Abstract
AIM To evaluate the effect of single nucleotide polymorphisms in the COMT, OPRM1, 5HT1A, 5HT2A and 5HTR3B genes on the intensity of postoperative pain following root canal treatment. METHODOLOGY Ninety-five patients with mandibular and maxillary molar teeth diagnosed with symptomatic apical periodontitis and a level of preoperative pain greater than 50 on a 100 mm visual analogue scale (VAS) were included. Salivary DNA was collected from the participants and stored in Eppendorf tubes at -80 °C. Preoperative percussion pain values were recorded before the root canal treatment procedures. After completion of root canal treatment, the participants were given instructions to record their postoperative pain intensity levels at 24, 48 and 72 h, 5 days and 1 week after treatment, using the VAS. A second visit for the patients after seven days was planned to record their intensity levels of percussion pain on VAS. The percussion test was performed by tapping on the occlusal surface of the tooth with a blunt instrument. A QIAamp DNA Mini Kit was used to isolate DNA from saliva, and SNP Genotyping Analysis software version 1 was used to analyse the genotypes by calculating FAM and HEX signals. The Kruskal-Wallis and Mann-Whitney U-tests were used to evaluate pain intensity values amongst the genotypes, alleles, haplotypes and allele combinations. Nominal data (gender, intake and tooth number) were analysed using a Chi-square test. Bonferroni correction was performed. Thus, the significance level was set at 1.6% (P = 0.016), 2.5% (P = 0.025) and 1.25% (P = 0.0125) for genotype, allele and haplotype comparisons, respectively. RESULTS There was no significant difference amongst the genotypes and alleles in terms of pre- and postoperative pain intensity. There was no significant difference amongst the haplotypes formed for the COMT gene in terms of pain intensity. Additionally, there was no significant association between the allelic combination formed for 5HT1A + 5HT2A genes and the intensity of postoperative pain. CONCLUSION The findings indicate that none of the evaluated SNPs for COMT, OPRM1, 5HT1A, 5HT2A and 5HTR3B genes were associated with the intensity of postoperative pain.
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Affiliation(s)
- E Karataş
- Department of Endodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| | - Ç Y Kahraman
- Department of Medical Genetics, Medical Faculty, Atatürk University, Erzurum, Turkey
| | - N Akbıyık
- Department of Endodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
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Karataş E, Tülek A, Çakar MM, Tamtürk F, Aktaş F, Binay B. From secretion in Pichia pastoris to application in apple juice processing: Exo-polygalacturonase from Sporothrix schenckii 1099-18. Protein Pept Lett 2021; 28:817-830. [PMID: 33413052 DOI: 10.2174/1871530321666210106110400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Polygalacturonases are a group of enzymes under pectinolytic enzymes related to enzymes that hydrolyse pectic substances. Polygalacturonases have been used in various industrial applications such as fruit juice clarification, retting of plant fibers, wastewater treatment drinks fermentation, and oil extraction. OBJECTIVES The study was evaluated at the heterologous expression, purification, biochemical characterization, computational modeling, and performance in apple juice clarification of a new exo-polygalacturonase from Sporothrix schenckii 1099-18 (SsExo-PG) in Pichia pastoris. METHODS Recombinant DNA technology was used in this study. Two different pPIC9K plasmids were constructed with native signal sequence-ssexo-pg and alpha signal sequence-ssexo-pg separately. Protein expression and purification performed after plasmids transformed into the Pichia pastoris. Biochemical and structural analyses were performed by using pure SsExo-PG. RESULTS The purification of SsExo-PG was achieved using a Ni-NTA chromatography system. The enzyme was found to have a molecular mass of approximately 52 kDa. SsExo-PG presented as stable at a wide range of temperature and pH values, and to be more storage stable than other commercial pectinolytic enzyme mixtures. Structural analysis revealed that the catalytic residues of SsExo-PG are somewhat similar to other Exo-PGs. The KM and kcat values for the degradation of polygalacturonic acid (PGA) by the purified enzyme were found to be 0.5868 µM and 179 s-1, respectively. Cu2+ was found to enhance SsExo-PG activity while Ag2+ and Fe2+ almost completely inhibited enzyme activity. The enzyme reduced turbidity up to 80% thus enhanced the clarification of apple juice. SsExo-PG showed promising performance when compared with other commercial pectinolytic enzyme mixtures. CONCLUSION The clarification potential of SsExo-PG was revealed by comparing it with commercial pectinolytic enzymes. The following parameters of the process of apple juice clarification processes showed that SsExo-PG is highly stable and has a novel performance.
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Affiliation(s)
- Ersin Karataş
- Department of Molecular Biology and Genetics, Gebze Technical University, Gebze 41400, Kocaeli. Turkey
| | - Ahmet Tülek
- Department of Molecular Biology and Genetics, Gebze Technical University, Gebze 41400, Kocaeli. Turkey
| | - Mehmet Mervan Çakar
- Department of Molecular Biology and Genetics, Gebze Technical University, Gebze 41400, Kocaeli. Turkey
| | - Faruk Tamtürk
- Döhler Food & Beverage Ingredients, 70100 Merkez, Karaman. Turkey
| | - Fatih Aktaş
- Department of Environment Engineering, Duzce University, Konuralp 81100, Düzce. Turkey
| | - Barış Binay
- Department of Bioengineering, Gebze Technical University, Gebze 41400, Kocaeli. Turkey
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Akkaya E, Evran Ş, Çalış F, Çevik S, Katar S, Karataş E, Koçyiğit A, Sağlam MY, Hatiboğlu MA, Hanımoğlu H, Kaynar MY. Thymoquinone ameliorates delayed cerebral injury and cerebral vasospasm secondary to experimental subarachnoid haemorrhage. Neurol Neurochir Pol 2020; 54:576-584. [PMID: 33252137 DOI: 10.5603/pjnns.a2020.0090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 11/25/2022]
Abstract
AIM OF THE STUDY Among subarachnoid haemorrhage (SAH) patients, delayed cerebral injury (DCI) and infarction are the most important causes of death and major disability. Cerebral vasospasm (cVS) and DCI remain the major cause of death and disability. Thymoquinone (TQ) is the substance most responsible for the biological activity of nigella sativa (NS) and is useful in the treatment of ischaemic and neurodegenerative diseases, oxidative stress, inflammatory events, cardiovascular and neurological diseases. We conducted an experimental study aimed to investigate the preventive and corrective effects of TQ. MATERIALS AND METHODS 24 Sprague-Dawley rats were randomly divided into three groups. The first was the control group which was a sham surgery group. The second group was the SAH group where the double haemorrage SAH protocol was used to induce vasospasm. The third group was the SAH+TQ group, where cVS was induced by the SAH protocol and the animals received oral 2 cc thymoquinone solution for seven days at a dose of 10 mg/kg, after the induction of SAH. The rats were euthanised seven days after the first procedure. The degree of cerebral vasospasm was evaluated by measuring the basilar artery luminal area and arterial wall thickness. Apoptosis was measured by the western blot method at brainstem neural tissue. Oxidative stress was measured by the Erel Method. Endothelin-1 was measured with ELISA analysis at blood. Statistical analysis was performed. RESULTS Endothelin-1 values were found to be statistically significantly lower in the control and SAH+TQ groups compared to the SAH group (P < 0.001). Mean lumen area values were significantly higher in the control and SAH+TQ groups than in the SAH group (P < 0.001). In the control and SAH+TQ groups, wall thickness values decreased significantly compared to the SAH group (P < 0.001). OSI values were significantly lower in the control and SAH+TQ groups than in the SAH group (P < 0.001). Apoptosis was significantly lower in the control and SAH+TQ groups than in the SAH group (P < 0.001). CONCLUSION Our results show that post-SAH TQ inhibits/improves DCI and cVS with positive effects on oxidative stress, apoptosis, ET-1, lumen area, and vessel wall thickness, probably due to its anti-ischaemic, antispasmodic, antioxidant, anti-inflammatory, anti-apoptotic and neuroprotective effects.
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Affiliation(s)
- Enes Akkaya
- Neurosurgery Department of Şişli Hamidiye Etfal Training and Research Hospital, İstanbul /Turkey, İstanbul, Turkey.
| | - Şevket Evran
- Department of Neurosurgery, Haseki Training and Research Hospital, Istanbul
| | - Fatih Çalış
- 1. Department of Neurosurgery, Medeniyet University, Goztepe Training and Research Hospital, Istanbul, Turkey
| | - Serdar Çevik
- memorial sisli hospital, department of neurosurgery
| | - Salim Katar
- department of neurosurgery, Balıkesir University Faculty of Medicine
| | - Ersin Karataş
- Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | | | - Mustafa Yasin Sağlam
- Department of Pathology, Kartal Dr. Lütfi Kırdar Education and Training Hospital, Istanbul, Turkey
| | | | - Hakan Hanımoğlu
- Biruni University Hospital, Eski Londra Asfalti, No:10 Besyol/Kucukcekmece, 34295 Istanbul, Turkey
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Tülek A, Karataş E, Çakar MM, Aydın D, Yılmazcan Ö, Binay B. Correction to: Optimisation of the Production and Bleaching Process for a New Laccase from Madurella mycetomatis, Expressed in Pichia pastoris: from Secretion to Yielding Prominent. Mol Biotechnol 2020; 63:91. [PMID: 33180259 DOI: 10.1007/s12033-020-00284-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ahmet Tülek
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Ersin Karataş
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Mehmet Mervan Çakar
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Derya Aydın
- Ak-Kim Kimya San. Ve Tic. A.S., 77600, Çiftlikköy, Yalova, Turkey
| | - Özlem Yılmazcan
- Ak-Kim Kimya San. Ve Tic. A.S., 77600, Çiftlikköy, Yalova, Turkey
| | - Barış Binay
- Department of Bioengineering, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey.
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Tülek A, Karataş E, Çakar MM, Aydın D, Yılmazcan Ö, Binay B. Optimisation of the Production and Bleaching Process for a New Laccase from Madurella mycetomatis, Expressed in Pichia pastoris: from Secretion to Yielding Prominent. Mol Biotechnol 2020; 63:24-39. [PMID: 33058020 DOI: 10.1007/s12033-020-00281-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2020] [Indexed: 01/06/2023]
Abstract
Laccases are polyphenol oxidoreductases used in a number of industrial applications. Due to the increasing demand for these "green catalysis" enzymes, the identification and biochemical characterisation of their novel properties is essential. In our study, cloned Madurella mycetomatis laccase (mmlac) genes were heterologously expressed in the methylotrophic yeast host Pichia pastoris. The high yield of the active recombinant protein in P. pastoris demonstrates the efficiency of a reliably constructed plasmid to express the laccase gene. The optimal biochemical conditions for the successfully expressed MmLac enzyme were identified. Detailed structural properties of the recombinant laccase were determined, and its utility in decolourisation and textile bleaching applications was examined. MmLac demonstrates good activity in an acidic pH range (4.0-6.0); is stable in the presence of cationic metals, organic solvents and under high temperatures (50-60 °C); and is stable for long-term storage at - 20 °C and - 80 °C for up to eight weeks. The structural analysis revealed that the catalytic residues are partially similar to other laccases. MmLac resulted in an increase in whiteness, whilst demonstrating high efficiency and stability and requiring the input of fewer chemicals. The performance of this enzyme makes it worthy of investigation for use in textile biotechnology applications, as well as within environmental and food technologies.
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Affiliation(s)
- Ahmet Tülek
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Ersin Karataş
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Mehmet Mervan Çakar
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Derya Aydın
- Ak-Kim Kimya San. Ve Tic. A.S., 77600, Çiftlikköy, Yalova, Turkey
| | - Özlem Yılmazcan
- Ak-Kim Kimya San. Ve Tic. A.S., 77600, Çiftlikköy, Yalova, Turkey
| | - Barış Binay
- Department of Bioengineering, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey.
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Yılmaz S, Göçmen AY, Karataş E, Tokpınar A. Cornus Mas L improves Antioxidant Status in the Liver, Lung, Kidney, Testis and Brain of Ehrlich Ascites Tumor Bearing Mice. Asian Pac J Cancer Prev 2020; 21:2531-2537. [PMID: 32986349 PMCID: PMC7779457 DOI: 10.31557/apjcp.2020.21.9.2531] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Indexed: 12/02/2022] Open
Abstract
Cornelian Cherry (Cornus Mas L) has widespread use due to its anti-inflammatory, anti-carcinogenic and anti-oxidant properties. In this study, the effects of Cornus Mas L (C. mas L) in different dosages on the biochemical values of mice organs were investigated in the Ehrlich Ascites tumor model, which originated from mice breast adenocarcinoma and developed in Balb/C mice. In our study, 32 Balb/C type male mice were used. Ehrlich Ascites Tumor (EAT) cells (1x106 EAT cell) from the stock animal were injected into all the mice in an intraperitoneal way. Experimental groups were given 100 and 200mg/kg C. mas L extract intraperitoneally for 9 days. The weights of the animals were recorded every day and were sacrificed on the 9th day. To estimate tumor proliferation of the lung, brain, kidney, liver, and testis, antioxidant parameters were recorded including, the reduced glutathione (GSH), lipid peroxidation, glutathione S-transferase (GST), superoxide dismutase (SOD) and catalase (CAT). Treatments of different doses of C. mas L. meaningfully (p < 0.05) modulated the lung, brain, kidney, liver and testis tissues antioxidant parameters as compared to the control. Our study showed the anti-tumor effect of C. mas L. in assisted tumor development with EAT cells, conceivably moderated by the enhancement of oxidative stress due to numerous mechanisms.
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Affiliation(s)
- Seher Yılmaz
- Department of Anatomy, Yozgat Bozok University Faculty of Medicine, Yozgat, Turkey
| | - Ayşe Yeşim Göçmen
- Department of Biochemistry, Yozgat Bozok University Faculty of Medicine, Yozgat, Turkey
| | - Ersin Karataş
- Department of Molecular Biology and Genetics, Gebze Technical University, Kocaeli Turkey
| | - Adem Tokpınar
- Department of Anatomy, Yozgat Bozok University Faculty of Medicine, Yozgat, Turkey
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Karataş E, Baltacı MÖ, Uluköylü E, Adıgüzel A. Antibacterial effectiveness of calcium hydroxide alone or in combination with Ibuprofen and Ciprofloxacin in teeth with asymptomatic apical periodontitis: a randomized controlled clinical study. Int Endod J 2020; 53:742-753. [DOI: 10.1111/iej.13277] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 02/06/2020] [Indexed: 12/13/2022]
Affiliation(s)
- E. Karataş
- Department of Endodontics Faculty of Dentistry Ataturk University ErzurumTurkey
| | - M. Ö. Baltacı
- Molecular Biology and Genetics, Microbiology Faculty of Science Ataturk University Erzurum Turkey
| | - E. Uluköylü
- Department of Endodontics Faculty of Dentistry Ataturk University ErzurumTurkey
| | - A. Adıgüzel
- Molecular Biology and Genetics, Microbiology Faculty of Science Ataturk University Erzurum Turkey
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Arslan H, Karataş E, Keskin A. Response to the letter: 'Comments on misinterpretation of the proton nuclear magnetic resonance spectroscopic data of a previous study' by Orhan&Irmak. Int Endod J 2020; 53:285-286. [PMID: 31917483 DOI: 10.1111/iej.13227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- H Arslan
- Department of Endodontics, Faculty of Dentistry, Istanbul Health Sciences University, Istanbul, Turkey.,Department of Endodontics, Faculty of Dentistry, Eastern Mediterranean University, Famagusta, Turkey
| | - E Karataş
- Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
| | - A Keskin
- Eti Krom Research&Development Center, Elazığ, Turkey
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Gedik Ö, Doğan R, Babademez MA, Karataş E, Aydın MŞ, Koçyiğit A, Eşrefoğlu M, Özturan O. Therapeutic effects of metformin for noise induced hearing loss. Am J Otolaryngol 2020; 41:102328. [PMID: 31732304 DOI: 10.1016/j.amjoto.2019.102328] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 10/26/2019] [Accepted: 10/29/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study aimed to investigate the healing effect of metformin on noise induced hearing loss (NIHL) by measuring audiological, biochemical and histological parameters. MATERIALS AND METHODS 32 rats were divided into four groups (Group 1: Noise, Group 2: Noise + Metformin, Grup 3: Metformin, Grup 4: Control). Broadband noise was applied to Group 1 and Group 2 after basal measurements. Measuring audiological (distortion product otoacoustic emission (DPOAE) and Auditory Brainstem Response (ABR)), biochemical (total antioxidant status (TAS), total oxidant status (TOS), oxidative status index (OSI), DNA damage, IL-1 beta, IL-6, TNF alfa, HSF-1 and COX-2) and histological parameters. RESULTS Group 2 had significant decreases in ABR thresholds on day 7 and day 14 compared to day 1. DPOAE values of Group 2 on the 7th and 14th days were significantly higher than the post-noise levels. DNA damage, TOS and OSI values of Group 1 were significantly higher than the other groups. The Cox-2 value of Group 1 was higher than all other groups. The HSF-1 value of Group 2 was significantly higher than that of Group 1. In terms of IL-1 Beta, IL-6 and TNF-alpha values, there was no significant difference between groups 2, 3 and 4 and these values were significantly lower than group 1. In histopathological results of our study, no significant difference was found between the groups being exposed to noise and the control group. CONCLUSION This study showed that early period of Metformin treatment has therapeutic effect on NIHL.
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Akkaya E, Evran Ş, Çalış F, Çevik S, Hanımoğlu H, Seyithanoğlu MH, Katar S, Karataş E, Koçyiğit A, Sağlam MY, Hatiboğlu MA, Kaynar MY. Effects of Intrathecal Verapamil on Cerebral Vasospasm in Experimental Rat Study. World Neurosurg 2019; 127:e1104-e1111. [DOI: 10.1016/j.wneu.2019.04.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 01/07/2023]
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Kumaş M, Eşrefoğlu M, Karataş E, Duymaç N, Kanbay S, Ergün IS, Üyüklü M, Koçyiğit A. Investigation of dose-dependent effects of berberine against renal ischemia/reperfusion injury in experimental diabetic rats. Nefrologia 2019; 39:411-423. [PMID: 30712966 DOI: 10.1016/j.nefro.2018.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/23/2018] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Ischemia-reperfusion injury causes various severe morphological and functional changes in diabetic patients. To date, numerous antidiabetic and antioxidant agents have been used for treatment of the disease-related changes. OBJECTIVES We aimed to examine effective therapeutic doses or doses of berberine against renal ischemia/reperfusion injury (IRI) in a streptozotocin (STZ)-induced diabetic rat model by histopathological and biochemical analysis. METHODS Thirty male Sprague Dawley rats were treated with STZ injection for the development of diabetes, and divided into the following groups: STZ-induced diabetic group (STZ); IRI-induced diabetic group (STZ+IRI); 50mg/kg berberine (BRB) treated diabetic group after inducing IRI (STZ+IRI+BRB1); 100mg/kg BRB treated diabetic group after IRI (STZ+IRI+BRB2); 150mg/kg BRB treated diabetic group after IRI (STZ+IRI+BRB3). Bilateral renal ischemia model was applied for 45min, then reperfusion was allowed for 14 days in STZ-induced diabetic rats. Renal injury was detected histopathologically. Blood urea nitrogen (BUN), creatinine and lactate dehydrogenase (LDH) levels were measured in serum using the ELISA method. Total antioxidant status (TAS) and total oxidant status (TOS) of renal tissue was studied by spectrophotometric assay. Oxidative stress index (OSI) was calculated as TOS-to-TAS ratio. Tumor necrosis factor alpha (TNF-α), C-reactive protein (CRP), Na+/K+-ATPase (sodium pump), and Ca2+-ATPase (calcium ATPase) enzyme levels were measured in tissues using the ELISA method. Anti-apoptotic Bax and pro-apoptotic Bcl-2 protein levels were detected by Western blot analysis. All data were evaluated statistically. RESULTS The highest histopathological score was detected in the STZ+IRI group compared to the other group. BRB administration at the doses of 100mg/kg and 150mg/kg markedly improved renal injury. BUN and creatinine levels significantly increased in the STZ+IRI group compared to the STZ group (p<0.001). 100mg/kg and 150mg/kg BRB administration significantly decreased those levels (p<0.01). The highest TOS and the lowest TAS levels were detected in the STZ+IRI group (p<0.001). IRI markedly aggravated inflammation via increasing levels of TNF-α and CRP (<0.001), and caused apoptosis via inducing Bcl-2 protein, and suppressing Bax protein (p<0.001). BRB administration at the doses of 100mg/kg and 150mg/kg showed anti-oxidant, anti-inflammatory and anti-apoptotic effects (p<0.01). The LDH enzyme, was used as a necrosis marker, was higher in the STZ+IRI group than other groups. BRB administration at all of the doses, resulted in the decline of LDH enzyme level (p<0.001). Ca2+-ATPase and Na+/K+-ATPase enzyme activities decreased in the STZ+IRI group compared to the STZ group (p<0.001), while BRB administration at the doses of 100mg/kg and 150mg/kg significantly increased those of enzyme activities, respectively (p<0.05). CONCLUSION Ischemia with diabetes caused severe histopathological and biochemical damage in renal tissue. The high doses of berberine markedly improved histopathological findings, regulated kidney function via decreasing BUN and creatinine levels, and rearranged intercellular ion concentration via increasing Na+/K+-ATPase and Ca2+- ATPase levels. Berberine showed anti-oxidant, anti-apoptotic, and anti-inflammatory effects. According to these data, we suggest that berberine at the doses of 100 and 150mg may be used as a potential therapeutic agent to prevent renal ischemic injury.
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Affiliation(s)
- Meltem Kumaş
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakif University, 34093 Istanbul, Turkey.
| | - Mukaddes Eşrefoğlu
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakif University, 34093 Istanbul, Turkey
| | - Ersin Karataş
- Department of Molecular Biology and Genetics, Gebze Technical University, Kocaeli, Turkey
| | - Nurcihan Duymaç
- Department of Pathology Laboratory Techniques, Vocational School of Health Services, Bezmialem Vakif University, 34093 Istanbul, Turkey
| | - Songül Kanbay
- Department of Pathology Laboratory Techniques, Vocational School of Health Services, Bezmialem Vakif University, 34093 Istanbul, Turkey
| | - Ilyas Samet Ergün
- Department of Pathology Laboratory Techniques, Vocational School of Health Services, Bezmialem Vakif University, 34093 Istanbul, Turkey
| | - Mehmet Üyüklü
- Department of Physiology, Faculty of Medicine, Bezmialem Vakif University, 34093 Istanbul, Turkey
| | - Abdurrahim Koçyiğit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, 34093 Istanbul, Turkey
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Altuntaş E, Yener G, Doğan R, Aksoy F, Şerif Aydın M, Karataş E. Effects of a Thermosensitive In Situ Gel Containing Mometasone Furoate on a Rat Allergic Rhinitis Model. Am J Rhinol Allergy 2018; 32:132-138. [PMID: 29644886 DOI: 10.1177/1945892418764951] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Mometasone furoate, one of the second generation intranasal corticosteroids, is currently used in suspension form due to its poor solubility. However, this is not favorable for nasal application because of the rapid elimination of the instilled drug from the nasal cavity by mucociliary clearance and delayed onset of action due to the slow dissolution of drug in suspension. Objective The aim of this study was to determine the antiallergic effects of mucoadhesive thermosensitive in situ gel containing mometasone furoate that we developed previously to prolong the contact between the drug and nasal mucosa and to prevent drainage of the formulation in an ovalbumin-induced rat model of allergic rhinitis. Methods An experimental allergic rhinitis model was developed in female Wistar albino rats by intraperitoneal injection of ovalbumin every 2 days for 14 days followed by its repeated intranasal instillation for 7 consecutive days. Intranasal instillation of ovalbumin was continued every other day for 14 days. Mometasone furoate in situ gel (5 μg/10 µl), mometasone furoate suspension (5 μg/10 µl), and physiological saline (10 µl) were administered into the bilateral nasal cavities from day 22 to day 35. Antiallergic effects were evaluated through histopathological evaluation, analysis of ovalbumin-specific serum immunoglobulin E, and a symptom score. Results Mometasone furoate in situ gel significantly decreased the nasal symptoms and ovalbumin-specific serum immunoglobulin E level as compared with mometasone furoate suspension and physiological saline. Additionally, inflammatory histological symptoms such as mucosal edema, vascular dilatation, eosinophil infiltration, and loss of cilia within the nasal mucosa of allergic rhinitis model rats were remarkably improved with the treatment of mometasone furoate in situ gel. Conclusion These results suggest that mometasone furoate in situ gel has a better therapeutic potential for the treatment of allergic rhinitis compared to mometasone furoate suspension.
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Affiliation(s)
- Ebru Altuntaş
- 1 Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Fatih, Istanbul, Turkey
| | - Gülgün Yener
- 1 Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Fatih, Istanbul, Turkey
| | - Remzi Doğan
- 2 Department of Otorhinolaryngology, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Fadlullah Aksoy
- 2 Department of Otorhinolaryngology, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Mehmet Şerif Aydın
- 3 Medipol Regenerative and Restorative Medicine Research Center, Istanbul Medipol University, Beykoz, Istanbul, Turkey
| | - Ersin Karataş
- 4 Department of Molecular Biology and Genetics, Gebze Technical University Cayirova/Kocaeli, Turkey
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Karataş E, Gündüz HA, Kırıcı DÖ, Arslan H. Incidence of dentinal cracks after root canal preparation with ProTaper Gold, Profile Vortex, F360, Reciproc and ProTaper Universal instruments. Int Endod J 2015; 49:905-910. [DOI: 10.1111/iej.12541] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 08/29/2015] [Indexed: 11/28/2022]
Affiliation(s)
- E. Karataş
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - H. A. Gündüz
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - D. Ö. Kırıcı
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - H. Arslan
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
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Karataş E, Arslan H, Kırıcı DÖ, Alsancak M, Çapar İD. Quantitative evaluation of apically extruded debris with Twisted File Adaptive instruments in straight root canals: reciprocation with different angles, adaptive motion and continuous rotation. Int Endod J 2015; 49:382-5. [DOI: 10.1111/iej.12461] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 04/30/2015] [Indexed: 11/26/2022]
Affiliation(s)
- E. Karataş
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - H. Arslan
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - D. Ö. Kırıcı
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - M. Alsancak
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - İ. D. Çapar
- Department of Endodontics; Faculty of Dentistry; İzmir Katip Çelebi University; İzmir Turkey
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Karataş E, Arslan H, Büker M, Seçkin F, Çapar ID. Effect of movement kinematics on the cyclic fatigue resistance of nickel-titanium instruments. Int Endod J 2015; 49:361-4. [DOI: 10.1111/iej.12453] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/24/2015] [Indexed: 11/26/2022]
Affiliation(s)
- E. Karataş
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - H. Arslan
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - M. Büker
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - F. Seçkin
- Department of Endodontics; Faculty of Dentistry; Ataturk University; Erzurum Turkey
| | - I. D. Çapar
- Department of Endodontics; Faculty of Dentistry; Katip Çelebi University; İzmir Turkey
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22
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Arslan H, Doğanay E, Alsancak M, Çapar ID, Karataş E, Gündüz HA. Comparison of apically extruded debris after root canal instrumentation using Reciproc(®) instruments with various kinematics. Int Endod J 2015; 49:307-10. [PMID: 25809717 DOI: 10.1111/iej.12449] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 03/17/2015] [Indexed: 11/28/2022]
Abstract
AIM To assess the amount of apically extruded debris using Reciproc(®) instruments with different kinematics (150° counter clockwise [CCW]-30° clockwise [CW], 270° CCW-30° CW, 360° CCW-30° CW and continuous rotation). METHODOLOGY Forty-eight maxillary central incisors were selected and assigned to four root canal shaping groups as follows (n = 12): 150° CCW-30° CW, 270° CCW-30° CW, 360° CCW-30° CW and continuous rotation. Reciproc R25 and R50(®) instruments were used in all groups. Apically extruded debris was collected and dried in preweighed Eppendorf tubes. The weight of extruded debris was assessed with an electronic balance. The data were analysed with one way analysis of variance and LSD post hoc tests (P = 0.05). RESULTS The 150° CCW-30° CW and 270° CCW-30° CW reciprocating motions extruded significantly less debris than continuous rotation (P < 0.05). However, no significant differences were found between the 360° CCW and 30° CW reciprocating motion and the continuous rotation (P > 0.05). CONCLUSIONS All instrument movements were associated with apically extruded debris. However, the 150° CCW-30° CW and 270° CCW-30° CW reciprocating motions were associated with less extrusion than continuous rotation.
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Affiliation(s)
- H Arslan
- Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
| | - E Doğanay
- Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
| | - M Alsancak
- Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
| | - I D Çapar
- Department of Endodontics, Faculty of Dentistry, Izmir Katip Çelebi University, İzmir, Turkey
| | - E Karataş
- Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
| | - H A Gündüz
- Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
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Koyuncu M, Yilmaz M, Yalçin S, Metin N, Gündüz S, Karataş E. [The existence of sinusitis in rabbits and the use of bromhexine as a mucolytic nose drop in the treatment of sinusitis]. MIKROBIYOL BUL 1989; 23:133-44. [PMID: 2626103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
To make an experimental sinusitis, 38 maxillary sinus ostia of 19 rabbits were closed by silicon plastic and 24 hours later 10(8)-10(10) germs/ml. of Streptococcus pneumoniae type C III were given to the antrums of sinuses. 5 days later all the rabbits showed sinusitis clinically, radiologically, bacteriologically and histopathologically. Viscous, purulent secretions collected in the antrums of sinuses. We thought that the medical treatment of sinuses which had drainage treatment necessitated to decrease the viscosity of secretions. Because of this bromhexine as a mucolytic nose drop was investigated for the first time for the treatment of sinusitis in two groups of rabbits. As a result of the study bromhexine as a nose drop in the eradication of sinus infections was seen a useful drug.
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Affiliation(s)
- M Koyuncu
- Ogretim Uyesi, Firat Universitesi, Kulak Burun Boğaz Anabilim Dah, Elaziğ
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