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Tekin S, Ocal A, Sisman E, Bilginer C, Cetin A. Histological assessment of endometrial polyps resected by hysteroscopy. Eur Rev Med Pharmacol Sci 2024; 28:3241-3250. [PMID: 38708482 DOI: 10.26355/eurrev_202404_36052] [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] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
OBJECTIVE This study aimed to analyze the clinical data and pathologic aspects of endometrial polyps (EMPs) excised completely during surgical hysteroscopy and assess the connection between premalignant and malignant EMPs. PATIENTS AND METHODS This retrospective study includes 489 participants who underwent hysteroscopy due to endometrial polyps, and the clinical features and histological findings of the resected polyps analyzed. RESULTS Participants with EMPs were divided into six groups according to histologic findings. The histologic finding of most cases was simple benign endometrial polyp [397 patients (81.2%)]. Malignant polyp was detected in 3 patients (0.6%). The histologic findings according to age, menopausal status, and menstrual bleeding patterns at the time of presentation to the outpatient clinic were compared; however, no significant difference was observed. 237 patients were observed to have menometrorrhagia, which was the most prevalent symptom reported. The distribution of polyp sizes observed at hysteroscopy according to histologic findings was compared, but no significant difference was observed. CONCLUSIONS EMPs are often benign but can include premalignant or malignant tissue changes. Hysteroscopy is used for direct observation of the uterine cervix and resection of existing polyps, considering the increasing frequency of its use as a diagnostic and treatment tool.
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Affiliation(s)
- S Tekin
- Department of Obstetrics and Gynecology, Haseki Training and Research Hospital, Istanbul, Turkey.
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Tekin B, Dundar S, Tekin S, Emine Sukuroglu E, Khurshid Z, Ezgi Y, Demirci F, Faheemuddin M. Effect of micro-arc oxidation coatings with graphene oxide and graphite on osseointegration of titanium implants-an in vivo study. Saudi Dent J 2024; 36:591-595. [PMID: 38690378 PMCID: PMC11056396 DOI: 10.1016/j.sdentj.2024.01.013] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 05/02/2024] Open
Abstract
Background This in vivo study evaluated the effect of graphene oxide and graphite coatings, coupled with the micro-arc oxidation (MAO) surface roughening technique, known for their mechanical strength, chemical stability, and antibacterial properties. The main objective was to assess the degree of improvement in osseointegration of titanium implants resulting from these interventions. Materials and methods In this study, 32 female rats were utilized and randomly allocated into four groups (n = 8 each): machined surface titanium implants (control), those roughened by the MAO method, those coated with graphene oxide-doped MAO, and those with a graphite-doped MAO coating. Titanium implants were surgically placed in the right tibia of the rats. Rats undergoing no additional procedures during the 4-week experimental period were sacrificed at the end. Then, the implants and surrounding bone tissues were separated and embedded in acrylic blocks for reverse torque analysis. Using a digital torque device, the rotational force was applied to all samples using a hex driver and racquet until implant separation from the bone occurred, with the corresponding values recorded on the digital display. Then, statistical analysis was performed to analyze the data. Results No statistically significant difference between the groups was observed in the biomechanical bone-implant connection levels (N/cm) (P = 0.268). Post-hoc tests were not required because no discernible differences were identified between the groups. Conclusion Within the scope of this study, implants treated with the MAO method, along with those coated with graphene oxide- and graphite-doped MAO method, did not exhibit significant superiority in terms of osseointegration compared to machined surface titanium implants.
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Affiliation(s)
- Bahar Tekin
- Firat University, Faculty of Dentistry, Department of Periodontology, Elazig, Turkey
| | - Serkan Dundar
- Firat University, Faculty of Dentistry, Department of Periodontology, Elazig, Turkey
| | - Samet Tekin
- Firat University, Faculty of Dentistry, Department of Prosthodontics, Elazig, Turkey
| | - Ebru Emine Sukuroglu
- Gumushane University, Faculty of Engineering and Natural Sciences, Department of Mechanical Engineering, Gumushane, Turkey
| | - Zohaib Khurshid
- King Faisal University, Department of Prosthodontics and Implantology, College of Dentistry, Al-Ahsa, Saudi Arabia
| | - Yusuf Ezgi
- Batman University, Faculty of Dentistry, Department of Periodontology, Batman, Turkey
| | - Fatih Demirci
- Inonu University, Faculty of Dentistry, Department of Prosthodontics, Diyarbakir, Turkey
| | - Muhammad Faheemuddin
- King Faisal University, Department of Prosthodontics and Implantology, College of Dentistry, Al-Ahsa, Saudi Arabia
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Tekin S, Sengul E, Yildirim S, Aksu EH, Bolat İ, Çınar B, Shadidizaji A, Çelebi F, Warda M. Molecular insights into the antioxidative and anti-inflammatory effects of P-coumaric acid against bisphenol A-induced testicular injury: In vivo and in silico studies. Reprod Toxicol 2024; 125:108579. [PMID: 38513920 DOI: 10.1016/j.reprotox.2024.108579] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/29/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
This study investigated the protective effects of p-coumaric acid (PCA) against bisphenol A (BPA)-induced testicular toxicity in male rats. The rats were divided into control, BPA, BPA+PCA50, BPA+PCA100, and PCA100 groups. Following a 14-day treatment period, various analyses were conducted on epididymal sperm quality and testicular tissues. PCA exhibited dose-dependent cytoprotective, antioxidant, and anti-inflammatory effects, ameliorating the decline in sperm quality induced by BPA. The treatment elevated antioxidant enzyme activities (SOD, GPx, CAT) and restored redox homeostasis by increasing cellular glutathione (GSH) and reducing malondialdehyde (MDA) levels. PCA also mitigated BPA-induced proinflammatory responses while reinstating anti-inflammatory IL-10 levels. Apoptotic parameters (p53 and p38-MAPK) were normalized by PCA in BPA-treated testicular tissue. Immunohistochemical and immunofluorescent analyses confirmed the cytoprotective and anti-inflammatory effects of PCA, evidenced by the upregulation of HO-1, Bcl-2, and Nrf-2 and the downregulation of the proapoptotic gene Bax in BPA-induced testicular intoxication. PCA corrected the disturbance in male reproductive hormone levels and reinstated testosterone biosynthetic capacity after BPA-induced testicular insult. In silico analyses suggested PCA's potential modulation of the oxidative stress KEAP1/NRF2/ARE pathway, affirming BPA's inhibitory impact on P450scc. This study elucidates BPA's molecular disruption of testosterone biosynthesis and highlights PCA's therapeutic potential in mitigating BPA's adverse effects on testicular function, showcasing its cytoprotective, anti-inflammatory, and hormone-regulating properties. The integrated in vivo and in silico approach offers a comprehensive understanding of complex mechanisms, paving the way for future research in reproductive health and toxicology, and underscores the importance of employing BPA-free plastic wares in semen handling.
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Affiliation(s)
- Samet Tekin
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey.
| | - Emin Sengul
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Emrah Hicazi Aksu
- Department of Andrology, Faculty of Veterinary Medicine, Kastamonu University, Kastamonu, Turkey
| | - İsmail Bolat
- Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Burak Çınar
- Department of Pharmacology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| | - Azizeh Shadidizaji
- Department of Plant Biotechnology, Faculty of Agriculture, Ataturk University, Erzurum, Turkey
| | - Fikret Çelebi
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Mohamad Warda
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey; Department of Biochemistry, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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Yildirim S, Sengul E, Aksu EH, Cinar İ, Gelen V, Tekin S, Dag Y. Selenium reduces acrylamide-induced testicular toxicity in rats by regulating HSD17B1, StAR, and CYP17A1 expression, oxidative stress, inflammation, apoptosis, autophagy, and DNA damage. Environ Toxicol 2024; 39:1402-1414. [PMID: 37987225 DOI: 10.1002/tox.23996] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/18/2023] [Accepted: 10/07/2023] [Indexed: 11/22/2023]
Abstract
This study investigated the effects of Selenium (Se) on testis toxicity induced by Acrylamide (ACR) in rats. In our study, 50 male adult rats were used, and the rats were divided into five groups; control, ACR, Se0.5 + ACR, Se1 + ACR, and Se1. Se and ACR treatments were applied for 10 days. On the 11th day of the experimental study, intracardiac blood samples from the rats were taken under anesthesia and euthanized. Sperm motility and morphology were evaluated. Dihydrotestosterone, FSH, and LH levels in sera were analyzed with commercial ELISA kits. MDA, GSH, TNF-α, IL-6, and IL-1β levels and SOD, GPx, and CAT, activities were measured to detect the level of oxidative stress and inflammation in rat testis tissues. Expression analysis of HSD17B1, StAR, CYP17A1, MAPk14, and P-53 as target mRNA levels were performed with Real Time-PCR System technology for each cDNA sample synthesized from rat testis RNA. Testicular tissues were evaluated by histopathological, immunohistochemical, and immunofluorescent examinations. Serum dihydrotestosterone and FSH levels decreased significantly in the ACR group compared to the control group, while LH levels increased and a high dose of Se prevented these changes caused by ACR. A high dose of Se prevented these changes caused by ACR. ACR-induced testicular oxidative stress, inflammation, apoptosis, changes in the expression of reproductive enzymes, some changes in sperm motility and morphology, DNA, and tissue damage, and Se administration prevented these pathologies caused by ACR. As a result of this study, it was determined that Se prevents oxidative stress, inflammation, apoptosis, autophagy, and DNA damage in testicular toxicity induced by ACR in rats.
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Affiliation(s)
- Serkan Yildirim
- Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Emin Sengul
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
- Department of Pharmacology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| | - Emrah Hicazi Aksu
- Department of Andrology, Faculty of Veterinary Medicine, Kastamonu University, Kastamonu, Turkey
| | - İrfan Cinar
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kastamonu University, Kastamonu, Turkey
| | - Volkan Gelen
- Department of Physiology, Faculty of Veterinary Medicine, Kafkas University, Kars, Turkey
| | - Samet Tekin
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Yusuf Dag
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
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Tanbek K, Yuksel F, Tekin S, Tekin C, Sandal S. Asprosin improved neuronal survival by suppressing apoptosis and enhancing the activity of the autophagy pathway in the MCAO model in rats. Eur Rev Med Pharmacol Sci 2024; 28:1937-1946. [PMID: 38497877 DOI: 10.26355/eurrev_202403_35608] [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] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
OBJECTIVE Cerebral ischemia (CI) is a condition in which metabolic stress increases when blood flow is interrupted in a part of the brain, resulting in oxygen and glucose deprivation. It is known that asprosin (Asp), secreted from adipose tissue during fasting, has an effect on some metabolic processes such as apoptosis, autophagy, and glucose metabolism. This study aimed to explain which of the cell death/survival Asp induces in the CI/reperfusion model. MATERIALS AND METHODS In the study, 48 male Wistar Albino rats were divided into 6 groups: Sham, CI, Asp+CI, CI+Asp, CI+Asp+3-MA, and Asp+CI+3-MA (n=48). CI was created using the intraluminal filament technique for 60 minutes, autophagy inhibitor 3-MA (15 mg/kg/day) and Asp (1 µg/kg/day) injections were administered 3 days before or 3 days during reperfusion. Beclin-1, ATG5, ATG7, p62, Bcl-2, Bax, active-caspase-3, and active-caspase-9 protein levels from brain tissues were determined by the Western-Blot method. The infarct area was determined by triphenyl tetrazolium chloride (TTC) staining. The Kruskal-Wallis' test was used to compare differences between groups. p<0.05 was considered statistically significant. RESULTS Compared to the Sham group, the increase in ischemic area and the decrease in Beclin-1, ATG-5, ATG-7, Bcl-2, Bax, active-caspase-3 and active-caspase-9 levels in the CI groups are statistically significant (p<0.05). The increase of Beclin-1, ATG-7, Bcl-2, and Bax levels in the Asp groups is statistically significant compared to the CI group (p<0.05). When Asp+CI groups and CI+Asp groups are compared, an increase in Beclin-1 levels in the Asp+CI group and the increase in Bcl-2, Bax, active-caspase-3/9 and ATG-5 levels in the CI+Asp groups are statistically significant (p<0.05). CONCLUSIONS Asp has protective and therapeutic effects against CI/R damage. While applying Asp before ischemia activates the autophagy pathway more, applying it after ischemia protects the neuronal death/survival balance by activating the apoptosis pathway more.
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Affiliation(s)
- K Tanbek
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey.
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Tekin S, Yagci G, Topuz S, Demirkiran G. Comparison of gait and sagittal plane arm swing between individuals with adolescent idiopathic scoliosis and healthy individuals. Acta Orthop Belg 2023; 89:727-734. [PMID: 38205767 DOI: 10.52628/89.4.11444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Arm swing and energy consumption play an important role in the realization of an effective gait. However, research on arm swing and energy consumption during gait in individuals with adolescent idiopathic scoliosis (AIS) is limited. The aim of this study was to investigate the spatiotemporal characteristics of gait, arm swing angles in the sagittal plane, energy consumption in individuals with AIS, to compare them with their healthy peers in this regard. 26 diagnosed with AIS and 21 healthy were included in this study. Evaluation measures were based on the Cobb angle, axial trunk rotation, trunk symmetry, sagittal curve measurements, spatiotemporal characteristics of gait with the GAITRite electronic walkway, sagittal plane arm swing with two video-camera recordings, and energy consumption. There were a decrease in right- sided sagittal arm swing, an increase in energy consumption, in left-side step time and right-side double support time in the scoliosis group compared to the control group. The other spatiotemporal characteristics of the gait were similar in both groups. The evaluation of arm swing, energy consumption, and gait of individuals with AIS may contribute to the development of rehabilitation programs by better identifying the deficiencies of individuals with AIS.
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Yildiz S, Tekin S, Kizilkaya AR, Akgün SE, Deger Y. Comparative Stress Analysis of Custom-Made PEEK Dental Post-Cores versus Conventional Post-Cores in Incisor Restorations: A Finite Element Study. Med Sci Monit 2023; 29:e940887. [PMID: 37587670 PMCID: PMC10443227 DOI: 10.12659/msm.940887] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 07/07/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND We conducted a finite element analysis to evaluate stress levels in incisor teeth restored with custom polyetheretherketone (PEEK) dental post-cores compared to conventional post-cores. MATERIAL AND METHODS Using micro-computed tomography (μCT) imaging data, a 3D model of a maxillary incisor was created. For each material type, 3D mesh models were developed via specialized software. Two post diameters, 2.5 mm and 3.5 mm, were considered. Five different post materials were examined: Unfilled polyetheretherketone (Group UP); Glass fiber-reinforced polyetheretherketone (Group GP); Carbon fiber-reinforced polyetheretherketone (Group CP); Metal (Group M); and Zirconia ceramic (Group Z). Each model underwent finite element analysis, after which the von Mises equivalent stress values were determined. RESULTS For models involving both wide and narrow diameter posts across the crown, crown cement, post cement, and dentin, PEEK posts (Group UP, GP, and CP) exhibited higher von Mises stress values than Groups Z and M. However, the reverse trend was noticed in the post model itself. In the post cement model, stress values appeared similar only for the narrow-diameter post groups. Notably, results for Groups Z and M were largely consistent with each other. CONCLUSIONS PEEK posts, which have a lower modulus of elasticity, demonstrated different stress values when contrasted with zirconia and metal posts. As the post diameter expanded, the residual dentin decreased, influencing the stress values among various materials. Further in vitro and clinical examinations are essential to comprehensively understand PEEK posts.
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Affiliation(s)
- Semsettin Yildiz
- Department of Pediatric Dentistry, Faculty of Dentistry, Firat University, Elazig, Turkey
| | - Samet Tekin
- Department of Prosthodontics, Faculty of Dentistry, Firat University, Elazig, Turkey
| | | | - Semih Ercan Akgün
- Pediatric Dentistry Clinic, Bafra Oral and Dental Health Center, Samsun, Turkey
| | - Yalcin Deger
- Department of Prosthodontics, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
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Ozturk AB, Çağlayan B, Kapmaz M, Çalık I, Tekin S, İliaz S, Fırat P. Hypersensitivity reactions to COVID-19 vaccines: a case of Eosinophilic pneumonia following Sinovac/CoronaVac vaccination. Eur Ann Allergy Clin Immunol 2023; 55:41-45. [PMID: 35156356 DOI: 10.23822/eurannaci.1764-1489.247] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Summary Hypersensitivity reactions has been reported with COVID-19 vaccines. Acute eosinophilic pneumonia has not been reported yet after Sinovac/CoronaVac vaccine. A 73-year-old woman presented with maculopapular rash, cough and dyspnea following Sinovac/CoronaVac injection. The complete blood count (CBC) indicated eosinophilia and further evaluation of the eosinophilia with CT and bronchoscopy confirmed a diagnosis of acute eosinophilic pneumonia. After methylprednisolone therapy, her rash resolved with marked improvement of the dyspnea. She is still on treatment and on the follow up period, we plan to continue steroid treatment at least 3 months.
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Affiliation(s)
- A B Ozturk
- Division of Allergy and Immunology, Department of Pulmonary Medicine, School of Medicine, Koç University, Istanbul, Turkey
| | - B Çağlayan
- Department of Pulmonary Medicine, School of Medicine, Koç University, Istanbul, Turkey
| | - M Kapmaz
- Department of Infectious Diseases, School of Medicine, Koç University, Istanbul, Turkey
| | - I Çalık
- Department of Pulmonary Medicine, School of Medicine, Koç University, Istanbul, Turkey
| | - S Tekin
- Department of Infectious Diseases, Koc University Hospital, Istanbul, Turkey
| | - S İliaz
- Department of Pulmonary Medicine, Koç University Hospital, Istanbul, Turkey
| | - P Fırat
- Department of Pathology, Koç University, School of Medicine, Istanbul, Turkey
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Tekin S, Akgün EE, Ömür AD. A neuroscience-based approach to the assessment of sexual behavior in animals. Front Vet Sci 2023; 10:1136332. [PMID: 37082135 PMCID: PMC10110897 DOI: 10.3389/fvets.2023.1136332] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/20/2023] [Indexed: 04/22/2023] Open
Abstract
Sexual behavior in animals is important in ensuring the continuity of the generation. These behaviors differ in animal species. Sexual behaviors are shaped under the control of the reproductive system. Physiological stimuli produced by the reproductive system find their counterparts in the organism as reproductive activity. Reproductive activity display a critical role by transferring on the genetic heritage of organisms to the next generations. This activity, which is built on delicate balances, is associated with many systems in the organism. Nervous system, hormonal system, and circulatory system are the main ones. The regular formation of the reproductive activity in species is due to the effect of various factors. In domestic mammals, the reproductive activity is regulated by hormones secreted from brain and endocrine glands. Many hormones have duties in terms of the sustainability of reproductive activity. GnRH is the main hormone responsible for initiating this reproductive activity. Gonadotropin-releasing hormone (GnRH), which is a small molecule peptide from certain nerve cells in the nucleus infundibularis region of the hypothalamus and consists of different amino acids, is secreted under the influence of smell, temperature, light, and physical stimulation. Besides, GnRH release is controlled by various neurotransmitters (adrenaline, noradrenaline, dopamine, acetylcholine, serotonin). On the other hand, various genetic factors in secretory glands, gonadal cells, reproductive tissues can lead to significant changes on reproductive activity through specific molecular pathways and mechanisms.
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Affiliation(s)
- Samet Tekin
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Türkiye
| | - Elif Ece Akgün
- Department of Histology-Embryology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Türkiye
- *Correspondence: Elif Ece Akgün
| | - Ali Doğan Ömür
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Türkiye
- Ali Doğan Ömür
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Mermutluoğlu Ç, Tekin R, Tekin RC, Tekin S, Canpolat Erkan RE, Deveci Ö, Aydoğdu G, Çelen MK, Dayan S. Evulation of prolidase enzyme, and galectin levels as a marker for fibrosis in patients with chronic hepatitis B. Eur Rev Med Pharmacol Sci 2022; 26:9467-9472. [PMID: 36591855 DOI: 10.26355/eurrev_202212_30698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE The fibrosis can be detected using non-invasive methods including prolidase activity, proline levels and galectin-3 (GAL-3) detection in the serum. The aim of this study was to investigate the liver fibrosis through non-invasive methods in chronic hepatitis B patients. PATIENTS AND METHODS This prospective case control study includes 56 patients with Chronic Active Hepatitis B (CAHB), 57 patients with Inactive Hepatitis B (IHB), and 60 healthy matched control subjects. The first group included the CAHB [hepatitis B surface antigen (HBsAg): positive; HBV DNA >2,000 IU/mL; normal or high alanine aminotransferase (ALT) value] undergo a liver biopsy, while the second group included the IHB (HBsAg: positive; HBV DNA: negative; normal ALT value). The third group comprised the healthy controls. Serum prolidase enzyme activities (SPEA), proline and galectin-3 levels were measured for each group. RESULTS Patients with CAHB had significantly higher SPEA levels (1,004.3±186.8 IU/L) than did the controls (196.5±306 IU/L) (p<0.001). Significantly higher serum GAL-3 levels were found in the CHB group compared with HBV carrier and the control groups (27.4±32.2 ng/mL, 6.5±13.4 ng/mL, 3.1±5.7 ng/mL, respectively, p<0.001). The relationship between serum prolidase activity, hidroxiprolyne and fibrosis (p<0.05). There were no significant differences in ALT levels between inactive HBV carriers and the control groups (p>0.05). CONCLUSIONS We suppose that hidroxiprolyne levels and prolidase enzyme activity might be an indicator as a marker for fibrosis in CAHB and the evaluation of response to treatment.
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Affiliation(s)
- Ç Mermutluoğlu
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Dicle University, Diyarbakir, Turkey.
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Tekin S, Çelebi F. Investigation of the effect of hesperidin on some reproductive parameters in testicular toxicity induced by Bisphenol A. Andrologia 2022; 54:e14562. [PMID: 35985655 DOI: 10.1111/and.14562] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 03/01/2022] [Revised: 06/21/2022] [Accepted: 08/04/2022] [Indexed: 12/01/2022] Open
Abstract
Bisphenol A (BPA) is one of the chemicals that cause dysfunction and infertility in testicles. Therefore, it is crucial to develop effective treatments against this damage. In this study, the effects of Hesperidin (HESP), a flavonoid in testicular toxicity induced by BPA in rats, on oxidative stress, inflammation, apoptosis, histological damage, spermatogenesis, steroidogenic enzymes and reproductive hormones were investigated. Our study used 52 Sprague Dawley male rats weighing 250-300 g, and four experimental groups were formed. From the experimental groups, 1 ml of olive oil was administered to the control group, HESP at a dose of 50 mg/kg to the HESP group, BPA at a dose of 100 mg/kg to the BPA group, HESP at a dose of 50 mg/kg to the BPA + HESP group and 100 mg/kg BPA was administered intragastrically (ig) for 14 days. We determined that BPA administration causes apoptosis, histological damage, inflammation, oxidative stress and toxic effects on spermatogenesis and steroidogenic enzymes in testicles. We observed that the administration of HESP with BPA attenuated oxidative stress, inflammation and apoptosis resulting in therapeutic effects on both steroidogenic enzymes and spermatogenesis and reproductive hormones (FSH, LH and testosterone). Our findings from this study clearly showed that while HESP treatment alleviates oxidative damage, inflammation and apoptosis in testicles of rats treated with BPA, it has regulatory effects on steroidogenic enzymes, spermatogenesis and serum reproductive hormones.
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Affiliation(s)
- Samet Tekin
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Fikret Çelebi
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
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Tekin S, Demirci F, Bakir M. Fracture strength of different veneers on polyetheretherketone (PEEK) frameworks in implant-supported single crowns. Am J Dent 2022; 35:167-171. [PMID: 35986930] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
PURPOSE To evaluate the fracture strength of polyetheretherketone (PEEK) single crowns veneered with different materials produced by computer-aided design (CAD)-computer-aided manufacture (CAM) after aging. METHODS 60 stainless-steel master dies were prepared with a 1 mm-wide deep chamfer. Sixty PEEK frameworks were produced with a CAD-CAM system for the right maxillary first molar tooth on the dies. PEEK frameworks were divided into six groups (n= 10) according to veneering materials (five CAD-CAM materials and a resin composite). Group ZR: monolithic zirconia (Upcera ST-Color); Group EC: lithium disilicate glass-ceramic (IPS e.max CAD); Group LU: resin nano-ceramic (Lava Ultimate); Group VM: feldspathic ceramic (Vitablocs Mark II); Group VS: zirconia-reinforced lithium silicate glass-ceramic (VITA Suprinity); and Group CR: indirect resin composite (Gradia). All samples were subjected to a fracture strength test in a universal test device after thermo-mechanical aging and then the results were analyzed statistically using one-way ANOVA and Tukey's post hoc test. In addition, post-fracture analyses of all samples were performed with a stereomicroscope. RESULTS The differences in fracture strength values of different veneer materials in single crowns with a PEEK framework were statistically significant (P< 0.05). Fracture strength was highest in Group ZR (1665 N), followed by Groups LU (1440 N), EC (1249 N), CR (918 N), VS (754 N), and VM (655 N). CLINICAL SIGNIFICANCE PEEK frameworks may have the potential to be used with many veneer materials of different content and properties in fixed partial prostheses.
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Affiliation(s)
- Samet Tekin
- Department of Prosthodontics, Faculty of Dentistry, Firat University, Elazig, Turkey,
| | - Fatih Demirci
- Department of Prosthodontics, Faculty of Dentistry, Inonu University, Malatya, Turkey
| | - Metin Bakir
- Department of Restorative Dentistry, Faculty of Dentistry, Bingol University, Bingol, Turkey
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Yaşar E, Çakmak T, Bayramoğlu A, Karakuş Y, Tekin S, Şekerci G, Türkoğlu C. MOTS-c as a predictor of coronary lesions and complexity in patients with stable coronary artery disease. Eur Rev Med Pharmacol Sci 2022; 26:5676-5682. [PMID: 36066139 DOI: 10.26355/eurrev_202208_29501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Atherosclerosis plays a major role in the development of coronary artery disease (CAD). It has been shown that mitochondrial open-reading-frame of the twelve S rRNA-c (MOTS-c), a mitochondrial-derived peptide, has preventive effects on atherosclerosis. The aim of this study was to determine the relationship between MOTS-c levels and CAD presence and severity using SYNTAX score (SS) in patients with stable angina pectoris. PATIENTS AND METHODS Ninety-two consecutive patients with stable coronary artery disease (CAD+) and ninety-two consecutive patients with normal coronary artery (CAD-) were included. Presence and severity of coronary artery disease were determined using the SS. RESULTS We observed that the MOTS-c levels was lower in the CAD group (111±13 vs. 161±23, p<0.001). The MOTS-c levels were also found to be significant independent predictors for CAD in multiple regression analysis (p<0.001). A MOTS-c levels ≥130.9 had 80.3% sensitivity and 73.2% specificity (area under the curve [AUC]: 0.858, 95% CI: 0.895-0.999, p<0.001) for predicting CAD. CONCLUSIONS The authors revealed that there is a strong correlation between MOTS-c levels and CAD. Therefore, MOTS-c may help identify patients with CAD, thus allowing for early preventive treatment.
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Affiliation(s)
- E Yaşar
- Department of Cardiology, Malatya Training and Research Hospital, Malatya, Turkey.
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14
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Demirci F, Birgealp Erdem M, Tekin S, Caliskan C. Effect of ultrasonic scaling and air polishing on the surface roughness of polyetheretherketone (PEEK) materials. Am J Dent 2022; 35:200-204. [PMID: 35986936] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
PURPOSE To evaluate the effects of ultrasonic scaling (US) and air polishing (AP) on four polyetheretherketone (PEEK) composites. METHODS One hundred-twenty 15 × 3 mm discs of PEEK specimens were divided into four groups (n=30): Unfilled PEEK(U-PEEK), carbon fiber-reinforced PEEK(CFR-PEEK), glass fiber-reinforced PEEK(GFR-PEEK), and ceramic-filled PEEK(CF-PEEK). Each group was further divided into three subgroups (n = 10): control, US, and AP. Profilometry and scanning electron microscopy were used to analyze and evaluate surface roughness (SR). Statistical analyses of the data obtained were conducted using Shapiro-Wilk, Welch, and Games-Howell tests. RESULTS When the SR values of the specimens with US cleaning were evaluated, a statistically significant difference was found between the groups (P< 0.05). When the SR values of the specimens with AP cleaning were analyzed, there was a statistically significant difference in the CF-PEEK group (P< 0.05), whereas the other groups were not significantly different (P> 0.05). More studies are needed on CFR-PEEK and GFR-PEEK materials offered as alternatives to CF-PEEK in dentistry. CLINICAL SIGNIFICANCE Dental instruments affect the different PEEK materials, as well as causing surface roughness in many restorative materials used in dentistry. Surface roughness that occurs in dental restorations can cause bacterial adhesion. It is clinically important to choose the dental instrument according to the type of PEEK used for dental implant or prosthetic restoration in the clinic.
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Affiliation(s)
- Fatih Demirci
- Inonu University, Faculty of Dentistry, Department of Prosthodontics, Malatya, Turkey
| | - Merve Birgealp Erdem
- Adiyaman University, Faculty of Dentistry, Department of Prosthodontics, Adiyaman, Turkey
| | - Samet Tekin
- Firat University, Faculty of Dentistry, Department of Prosthodontics, Elazig, Turkey,
| | - Cevdet Caliskan
- Adiyaman University, Faculty of Dentistry, Department of Prosthodontics, Adiyaman, Turkey
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15
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Birol Ilter P, Prasad S, Mutlu MA, Tekin AB, O'Brien P, von Dadelszen P, Magee LA, Tekin S, Tug N, Kalafat E, Khalil A. Maternal and perinatal outcomes of SARS-CoV-2 infection in unvaccinated pregnancies during Delta and Omicron waves. Ultrasound Obstet Gynecol 2022; 60:96-102. [PMID: 35441407 PMCID: PMC9111049 DOI: 10.1002/uog.24916] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/30/2022] [Accepted: 04/05/2022] [Indexed: 05/07/2023]
Abstract
OBJECTIVE There is little evidence related to the effects of the Omicron severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant on pregnancy outcomes, particularly in unvaccinated women. This study aimed to compare pregnancy outcomes of unvaccinated women infected with SARS-CoV-2 during the pre-Delta, Delta and Omicron waves. METHODS This was a retrospective cohort study conducted at two tertiary care facilities: Sancaktepe Training and Research Hospital, Istanbul, Turkey, and St George's University Hospitals NHS Foundation Trust, London, UK. Included were women who tested positive for SARS-CoV-2 by real-time reverse-transcription polymerase chain reaction (RT-PCR) during pregnancy, between 1 April 2020 and 14 February 2022. The cohort was divided into three periods according to the date of their positive RT-PCR test: (i) pre-Delta (1 April 2020 to 8 June 2021 in Turkey, and 1 April 2020 to 31 July 2021 in the UK), (ii) Delta (9 June 2021 to 27 December 2021 in Turkey, and 1 August 2021 to 27 December 2021 in the UK) and (iii) Omicron (after 27 December 2021 in both Turkey and the UK). Baseline data collected included maternal age, parity, body mass index, gestational age at diagnosis and comorbidities. The primary outcome was the need for oxygen supplementation, classified as oxygen support via nasal cannula or breather mask, non-invasive mechanical ventilation with continuous positive airway pressure (CPAP) or high-flow oxygen, mechanical ventilation with intubation, or extracorporeal membrane oxygenation (ECMO). Inferences were made after balancing of confounders, using an evolutionary search algorithm. Selected confounders were maternal age, body mass index and gestational age at diagnosis of infection. RESULTS During the study period, 1286 unvaccinated pregnant women with RT-PCR-proven SARS-CoV-2 infection were identified, comprising 870 cases during the pre-Delta period, 339 during the Delta wave and 77 during the Omicron wave. In the confounder-balanced cohort, infection during the Delta wave vs during the pre-Delta period was associated with increased need for nasal oxygen support (risk ratio (RR), 2.53 (95% CI, 1.75-3.65); P < 0.001), CPAP or high-flow oxygen (RR, 2.50 (95% CI, 1.37-4.56); P = 0.002), mechanical ventilation (RR, 4.20 (95% CI, 1.60-11.0); P = 0.003) and ECMO (RR, 11.0 (95% CI, 1.43-84.7); P = 0.021). The maternal mortality rate was 3.6-fold higher during the Delta wave compared to the pre-Delta period (5.3% vs 1.5%, P = 0.010). Infection during the Omicron wave was associated with a similar need for nasal oxygen support (RR, 0.62 (95% CI, 0.25-1.55); P = 0.251), CPAP or high-flow oxygen (RR, 1.07 (95% CI, 0.36-3.12); P = 0.906) and mechanical ventilation (RR, 0.44 (95% CI, 0.06-3.45); P = 0.438) with that in the pre-Delta period. The maternal mortality rate was similar during the Omicron wave and the pre-Delta period (1.3% vs 1.3%, P = 0.999). The need for nasal oxygen support during the Omicron wave was significantly lower compared to the Delta wave (RR, 0.26 (95% CI, 0.11-0.64); P = 0.003). Perinatal outcomes were available for a subset of the confounder-balanced cohort. Preterm birth before 34 weeks' gestation was significantly increased during the Delta wave compared with the pre-Delta period (15.4% vs 4.9%, P < 0.001). CONCLUSIONS Among unvaccinated pregnant women, SARS-CoV-2 infection during the Delta wave, in comparison to the pre-Delta period, was associated with increased requirement for oxygen support (including ECMO) and higher maternal mortality. Disease severity and pregnancy complications were similar between the Omicron wave and pre-Delta period. SARS-CoV-2 infection of unvaccinated pregnant women carries considerable risks of morbidity and mortality regardless of variant, and vaccination remains key. Miscommunication of the risks of Omicron infection may impact adversely vaccination uptake among pregnant women, who are at increased risk of complications related to SARS-CoV-2. © 2022 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- P. Birol Ilter
- Department of Obstetrics and Gynecology, Sancaktepe Sehit Prof Dr Ilhan Varank Training and Research HospitalUniversity of Health SciencesIstanbulTurkey
| | - S. Prasad
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation TrustUniversity of LondonLondonUK
| | - M. A. Mutlu
- Department of Obstetrics and Gynecology, Sancaktepe Sehit Prof Dr Ilhan Varank Training and Research HospitalUniversity of Health SciencesIstanbulTurkey
| | - A. B. Tekin
- Department of Obstetrics and Gynecology, Sancaktepe Sehit Prof Dr Ilhan Varank Training and Research HospitalUniversity of Health SciencesIstanbulTurkey
| | - P. O'Brien
- Royal College of Obstetricians and GynaecologistsLondonUK
- University College London Hospitals, Institute For Women's HealthLondonUK
| | - P. von Dadelszen
- Institute of Women and Children's Health, School of Life Course and Population SciencesKing's College LondonLondonUK
| | - L. A. Magee
- Institute of Women and Children's Health, School of Life Course and Population SciencesKing's College LondonLondonUK
| | - S. Tekin
- Department of Anesthesiology and Reanimation, Sancaktepe Sehit Prof Dr Ilhan Varank Training and Research HospitalUniversity of Health SciencesIstanbulTurkey
| | - N. Tug
- Department of Obstetrics and Gynecology, Sancaktepe Sehit Prof Dr Ilhan Varank Training and Research HospitalUniversity of Health SciencesIstanbulTurkey
| | - E. Kalafat
- Department of Obstetrics and Gynecology, School of MedicineKoc UniversityIstanbulTurkey
- Department of Statistics, Faculty of Arts and SciencesMiddle East Technical UniversityAnkaraTurkey
| | - A. Khalil
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation TrustUniversity of LondonLondonUK
- Vascular Biology Research Centre, Molecular and Clinical Sciences Research InstituteSt George's University of LondonLondonUK
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Gundogmus I, Tekin S, Yasar A, Uzun Ö. The Relationships Between Strategies Of Stress Coping And Temperament-Character Traits In Subjects With Bipolar Disorder. Eur Psychiatry 2022. [PMCID: PMC9562949 DOI: 10.1192/j.eurpsy.2022.418] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Bipolar disorder (BD) is a severe mood disorder, which is characterized by a cycling between the mania and major depression. The relationship between coping strategies and temperament-character traits in BD is unclear at this time. Objectives The aim of our study was to assess the relationship between strategies of coping stress and temperament-character traits in individuals with BD. Methods 168 patients diagnosed with BD in full remission were included. All participants were diagnosed by an experienced consultant psychiatrist based on DSM-5 and were assessed with Young Mania Rating Scale (YMRS) for confirmation to remission. Sociodemographic datas of all participants was obtained and Temperament Evaluation of Memphis, Pisa, Paris and San Diego–Autoquestionnaire (TEMPS-A) and Coping with Stress Scale (CSS) were applied. Results 75 patients (44.6%) were female and the mean age of the sample was 32.64±10.74 years, the mean duration of illness was 8.23±5.52 years and was found that the mean score of YMRS 5.35±4.19. It was presented Table 1 whether there was a statistically significant correlation between TEMPS-A and CSS subscales. Conclusions As coping strategies may be related to temperament-character traits and that could be important for psychological interventions in patients with BD. |
Depressive |
Hypertimic |
Cyclothymic |
Irritable | Anxious |
---|
Avoidance | -,067 | -,159 | ,098 | -,150 | -,083 | ,485 | ,095 | ,305 | ,115 | ,387 | Problem-focused coping strategies | -,268 | -,153 | ,366 | -,246 | -,134 | ,004 | ,109 | ,000 | -,009 | ,161 | Social support | -,191 | -,495 | -,060 | -,646 | -,416 | ,044 | ,000 | ,535 | ,000 | ,000 | Total | -,256 | -,399 | ,149 | -,370 | -,324 | ,007 | ,000 | ,118 | ,000 | ,001 |
![]() Disclosure No significant relationships.
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Gundogmus I, Tekin S, Tasdelen Kul A, Uzun Ö, Ozmenler K. Amisulpride-induced late-onset rabbit syndrome: Case report and literature review. Eur Psychiatry 2022. [PMCID: PMC9567490 DOI: 10.1192/j.eurpsy.2022.1835] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Amisulpride is an atypical antipsychotic. Rabbit syndrome(RS) may be seen after antipsychotics use a few days or long‐term application. RS occurs after more frequent typical antipsychotics and also in rare cases atypical antipsychotics.Its characterized by the involuntary rhythmic movements of the lips however involves no tongue movements. Objectives Case report and reflection on its etiology Methods Case report and literature review Results A 28-year-old female with a diagnosis of schizophrenia applied with the complaints and symptoms of withdrawal, do not want to leave the house, physical anergy and avolition that started after stopped taking her medications. She was admitted to the psychiatry service and amisulpride treatment was started and was gradually increased to 800 mg/day. After 30 days of hospitalization, the patient was discharged with mild recovery. 14 days after the discharge, because of the abnormal involuntary movements in mouth, the patient applied. In clinical examination without tounge involvement, rhythmic motions were observed in the lips and jaw.Neurological examination, labrotory tests and cranial screening were all normal. She was evaluated by a private psychiatrist and was diagnosed with RS. Amisulpride treatment changed to olanzapine treatment with 15 mg/day. After two months, RS spontaneously regressed. Conclusions The resolution of the involuntary movements following discontinuation of amisulpride in our case, supported the diagnosis of RS. Although the mechanism by which RS emerges as a side‐effect of amisulpride is not fully understood, the drug’s high affinity for and selective binding to dopaminergic D2 and D3 receptors are thought to be responsible for this involuntary motion disorder. Disclosure No significant relationships.
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Gundogmus I, Tekin S, Aydin M, Ucar H, Uzun Ö. Comparison of Metacognitions in Obsessive-Compulsive Disorder, Generalized Anxiety Disorder, and Healthy Controls. Eur Psychiatry 2022. [PMCID: PMC9563155 DOI: 10.1192/j.eurpsy.2022.488] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Generalized anxiety disorder (GAD) and Obsessive compulsive disorder (OCD) are common psychiatric disorders. Researchers studying the pathophysiology of these two disorders evaluated the effect of metacognition. However, there is no research examining the metacognition differences of these two psychiatric conditions. Objectives This study was performed to compare the metacognitions in OCD, GAD and healthy controls. Methods The sample of this study consisted of 158 GAD and 137 OCD patients aged 18-65 years who presented to outpatient psychiatry clinic and applied to the health committee 168 healthy controls without psychopathology. Sociodemographic data form, Meta-Cognitions Questionnaire-30 scale(MCQ-30), Beck Depression Inventory(BDI) and Beck Anxiety Inventory(BAI) were applied to the volunteer participants who met the criteria for participation in the study. The data obtained were evaluated statistically and subjected to statistical analysis. Results The mean age was 31.89 ± 10.86 years and was 60.5% (n = 208) women. There was statistical difference between marital status, occupation and income(p <0.05). In addition, there was a statistically significant difference between MCQ-30 total and subscales, BDI and BAI (p <0.001). According to the comparison of OCD and GAD patients, ’positive belief’, MCQ-30 total and BAI scores were found to be statistically different (p <0.05), ’Uncontrollability and danger’, ’Cognitive Confidence’, ’Beliefs about The Need to Control Thoughts’, ’Cognitive Self-Consciousness’, BDI there was no statistical difference between them (p> 0.05). ![]()
Conclusions Our results are contributing to the understanding of the uncertainty of development and maintenance of OCD and GAD. Additionally, metacognitions could be important for the diagnosis and treatment of OCD and GAD. Disclosure No significant relationships.
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Gundogmus I, Tekin S, Tasci A, Uzun Ö. Venlafaxine-induced spontaneous ejaculation: Case report and literature review. Eur Psychiatry 2022. [PMCID: PMC9563703 DOI: 10.1192/j.eurpsy.2022.877] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Introduction Venlafaxine is a serotonin-norepinephrine reuptake inhibitor and its extensive use for major depressive disorder and anxiety disorders. Although it has been reported that venlafaxine may have various side effects, as far as we know, spontaneous ejaculation(SE) has not been reported yet. Objectives We aim to describe this clinical case with venlafaxine-induced SE and to discuss the possible etiological factors. Methods Case report and literature review. Results A 53-year-old male with generalized anxiety disorder was initiated venlafaxine treatment with 75 mg/day. After two months patient’s complaints partially regressed and the dose of venlafaxine treatment was increased to 150 mg/day. 10 days after the dose increase, the patient applied with the complaint of SE 2-3 times a day. No urological etiology was found. During outpatient follow-ups, after the 5 days from reducing the daily dose to 75 mg/day, SE complaint completely regressed. After following couple of months, the patient by himself, increased the dose of venlafaxine to 150 mg/day without consulting a psychiatrist. Then SE recurred approximately 15 days later. Venlafaxine treatment dose was reduced again to 75 mg/day and urological complaints spontaneously regressed. Conclusions SE, a rare sexual side effect, represents ejaculation that occurs involuntarily and in the absence of any sexual stimuli. The possible mechanism of SE, detected as a side effect in our case, may be that increased adrenergic activity reduces ejaculatory latency and triggers spontaneous ejaculation. Antidepressant-associated sexual dysfunction could be a dose-dependent adverse event. Therefore, reducing the dosage of the treatment to a minimum effective dose could be an option. Disclosure No significant relationships.
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Gul M, Dundar S, Bozoglan A, Ozcan EC, Tekin S, Yildirim TT, Karasu N, Bingul MB. Evaluation of the effects of the systemic proton pump inhibitor-omeprazole on periimplant bone regeneration and osseointegration: An experimental study. J Oral Biol Craniofac Res 2022; 12:381-384. [PMID: 35592026 PMCID: PMC9111997 DOI: 10.1016/j.jobcr.2022.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 12/26/2020] [Accepted: 04/17/2022] [Indexed: 12/12/2022] Open
Abstract
Objective Investigations of the effects of proton pump inhibitors (PPIs) on bone healing have revealed that they affect bone regeneration negatively. The exact mechanism by which this adverse effect on bone tissue is not known. The aim of this study is to biomechanic and biochemical investigation of the effects of the PPIs on guided periimplant bone regeneration. Material & methods Spraque dawley rats were divided controls (n = 8): there is no treatment during 8 week experimental period, PPI- Dosage 1 (n = 8) and Dosage 2 (n = 8): 5 mg/kg and 10 mg/kg omeprazol applied 3 times in a week with oral gavage during 8 weeks respectfully. Bone defects created half of the implant length circumferencial after implant insertion and defects filled with bone grafts. After experimental period the rats sacrified and implants with surrounding bone tissues were removed to reverse torque analysis (Newton), blood samples collected to biochemical analysis (glucose, AST, ALT, ALP, urea, creatinin, calcium, P). Results Biomechanic reverse torque values did not revealed any statistical differences between the groups (P > 0,05). Conclusion According the biomechanical and biochemical parameters PPIs does not effect the periimplant guided bone regeneration.
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Affiliation(s)
- Mehmet Gul
- Sanliurfa Harran University, Department of Periodontology, Faculty of Dentistry, Sanliurfa, Turkiye
| | - Serkan Dundar
- Firat University, Department of Periodontology, Faculty of Dentistry, Elazig, Turkiye
| | - Alihan Bozoglan
- Firat University, Department of Periodontology, Faculty of Dentistry, Elazig, Turkiye
| | - Erhan Cahit Ozcan
- Firat University, Department of Esthetic, Plastic and Reconstructive Surgery, Faculty of Medicine, Elazig, Turkiye
| | - Samet Tekin
- Firat University, Department of Protetic Dentistry, Faculty of Dentistry, Elazig, Turkiye
| | - Tuba Talo Yildirim
- Firat University, Department of Periodontology, Faculty of Dentistry, Elazig, Turkiye
| | - Necmettin Karasu
- Afyonkarahisar Health Sciences University, Department of Esthetic, Plastic and Reconstructive Surgery, Faculty of Medicine, Afyonkarahisar, Turkiye
| | - Muhammet Bahattin Bingul
- Sanliurfa Harran University, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Sanliurfa, Turkiye
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Gunes N, Gül M, Dundar S, Artas G, Kobat MA, Tekin S, Bozoglan A, Isayev A. Effects of Systemic Propranolol Application on the New Bone Formation in Periimplant Guided Bone Regeneration. J Oral Maxillofac Res 2021; 12:e2. [PMID: 34777724 PMCID: PMC8577584 DOI: 10.5037/jomr.2021.12302] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 08/11/2021] [Indexed: 11/26/2022]
Abstract
Objectives The aim of this experimental animal study was to evaluate the effects of systemic propranolol on new bone formation in peri-implant bone defects. Material and Methods Implant slots were created 4mm long and 2.5 mm wide. After the titanium implants were placed in the sockets, 2 mm defects were created in the neck of the implants. Bone grafts were placed in these defects. Then the rats were randomly divided into three equal groups: control (n = 8), propranolol dose-1 (PRP-1) (n = 8), and propranolol dose-2 (PRP-2) (n = 8) groups. In the control group, the rats received no further treatment during the eight-week experimental period after the surgery. The rats in the PRP-1 and PRP-2 groups were given 5 mg/kg and 10 mg/kg propranolol, respectively, every three days for the eight-week experimental period after the surgery. At the end of the experimental period, the rats were euthanized. Blood serum was collected for biochemical analysis, and the implants and surrounding bone tissues were used for the histological analysis. Results There were no significant differences in the histological analysis results and the biochemical parameters (alkaline phosphatase, calcium, creatinine and phosphorus) of the groups (P > 0.05). Also, in the test groups, there was numerically but not statistically more new bone formation detected compared with the controls. Conclusions Within the limitations of this study, propranolol did not affect the new bone formation in peri-implant defects.
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Affiliation(s)
- Nedim Gunes
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, DiyarbakirTurkey
| | - Mehmet Gül
- Department of Periodontology, Faculty of Dentistry, Harran University, SanliurfaTurkey
| | - Serkan Dundar
- Department of Periodontology, Faculty of Dentistry, Firat University, ElazigTurkey
| | - Gokhan Artas
- Department of Pathology, Faculty of Medicine, Firat University, ElazigTurkey
| | - Mehmet Ali Kobat
- Department of Cardiology, Faculty of Medicine, Firat University, ElazigTurkey
| | - Samet Tekin
- Department of Prosthodontics, Faculty of Dentistry, Firat University, ElazigTurkey
| | - Alihan Bozoglan
- Department of Periodontology, Faculty of Dentistry, Firat University, ElazigTurkey
| | - Abulfaz Isayev
- Department of Prosthodontics, Goldman School of Dental Medicine, Boston University, BostonUSA
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22
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Gelen V, Şengül E, Yıldırım S, Senturk E, Tekin S, Kükürt A. The protective effects of hesperidin and curcumin on 5-fluorouracil-induced nephrotoxicity in mice. Environ Sci Pollut Res Int 2021; 28:47046-47055. [PMID: 33886055 DOI: 10.1007/s11356-021-13969-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
Nephrotoxicity is a very important complication of 5-fluorouracil (5-FU)-treated cancer patients. Increased oxidative stress, kidney damage, and apoptosis play an important role in the pathogenesis of nephrotoxicity caused by 5-FU. In this study, protective effects of two natural compounds, hesperidin and curcumin, on experimentally induced kidney damage in mice with 5-FU were determined. Application of 5-FU resulted in severe histopathological changes and severe renal failure with increased serum urea and creatinine levels. Also, 5-FU-induced kidney damage, increased levels of malondialdehyde (MDA), decreased superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) activity, and glutathione (GSH) level have been demonstrated. Also, where 5-FU is in the concentration of caspase-3 and 8-OHdG immune-positive cells and therefore causes apoptosis and DNA damage in kidney tissue cells. However, especially high doses of hesperidin and curcumin treatment significantly improved 5-FU-induced oxidative stress/lipid peroxidation, apoptosis/DNA damage, and renal dysfunction. Based on these data, our results suggest that hesperidin and curcumin may be used as new and promising agents against 5-FU-induced nephrotoxicity.
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Affiliation(s)
- Volkan Gelen
- Department of Physiology, Veterinary Faculty, Kafkas University, Kars, Turkey.
| | - Emin Şengül
- Department of Physiology, Veterinary Faculty, Ataturk University, Erzurum, Turkey
| | - Serkan Yıldırım
- Department of Pathology, Veterinary Faculty, Ataturk University, Erzurum, Turkey
| | - Esra Senturk
- School of Health Services, Agri Ibrahim Cecen University, Agri, Turkey
| | - Samet Tekin
- Department of Physiology, Veterinary Faculty, Ataturk University, Erzurum, Turkey
| | - Abdulsamed Kükürt
- Department of Biochemistry, Veterinary Faculty, Kafkas University, Kars, Turkey
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Tekin S, Dundar S, Demirci F, Bozoglan A, Yildirim TT, Gunes N, Acikan I, Ozcan EC. Biomechanical and biochemical evaluation of the effect of systemic application of omeprazole on the osseointegration of titanium implants. Int J Implant Dent 2021; 7:27. [PMID: 33843027 PMCID: PMC8039067 DOI: 10.1186/s40729-021-00310-5] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 02/24/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND This study aimed to investigate the effects of systemic omeprazole treatment on the osseointegration of titanium implants. MATERIAL AND METHODS After surgical insertion of titanium implants into the metaphyseal part of rats' both right and left tibial bones, the animals were randomly divided into three equal groups: control (n = 8), omeprazole dosage-1 (n = 8) (OME-1), and omeprazole dosage-2 (n = 8) (OME-2) and totally 48 implants were surgically integrated. The rats in the control group received no treatment during the four-week postoperative experimental period. In the OME-1 and OME-2 groups, the rats received omeprazole in doses of 5 and 10 mg/kg, respectively, every 3 days for 4 weeks. After the experimental period, the rats were euthanized. One rat died in each group and the study was completed with seven rats in each group. Blood serum was collected for biochemical analysis, and the implants and surrounding bone tissue were used for biomechanical reverse-torque analysis. In the biomechanical analysis, implants that were not properly placed and were not osseointegrated were excluded from the evaluation. RESULTS One-way analysis of variance and Tukey's honestly significant difference test and Student's t test were used for statistical analysis. The reverse-torque test (control (n = 9), OME-1 (N = 7), and OME-2 (n = 7)) analysis of biochemical parameters (alkaline phosphatase, calcium, phosphorus, aspartate aminotransferase, alanine amino transferase, urea, and creatinine) revealed no significant differences between the groups (control (n = 7), OME-1 (N = 7), and OME-2 (n = 7)) (P > 0.05). CONCLUSIONS Omeprazole had no biomechanical or biochemical effects on the osseointegration process of titanium implants.
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Affiliation(s)
- Samet Tekin
- Department of Prosthodontics, Faculty of Dentistry, Firat University, 23119, Elazig, Turkey.
| | - Serkan Dundar
- Department of Periodontology, Faculty of Dentistry, Firat University, Elazig, Turkey
| | - Fatih Demirci
- Department of Prosthodontics, Faculty of Dentistry, Inonu University, Malatya, Turkey
| | - Alihan Bozoglan
- Department of Periodontology, Faculty of Dentistry, Firat University, Elazig, Turkey
| | - Tuba Talo Yildirim
- Department of Periodontology, Faculty of Dentistry, Firat University, Elazig, Turkey
| | - Nedim Gunes
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
| | - Izzet Acikan
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Sütcü Imam University, Kahramanmaras, Turkey
| | - Erhan Cahit Ozcan
- Department of Plastic-Reconstructive & Esthetic Surgery, Faculty of Medicine, Firat University, Elazig, Turkey
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Sengul E, Gelen V, Yildirim S, Tekin S, Dag Y. The Effects of Selenium in Acrylamide-Induced Nephrotoxicity in Rats: Roles of Oxidative Stress, Inflammation, Apoptosis, and DNA Damage. Biol Trace Elem Res 2021; 199:173-184. [PMID: 32166561 DOI: 10.1007/s12011-020-02111-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 03/03/2020] [Indexed: 02/06/2023]
Abstract
We sought to determine the effects of selenium (Se) on acrylamide (ACR)-induced nephrotoxicity in rats. In our study, 50 adult male Sprague-Dawley rats weighing 200-250 g were randomly divided into five groups. The control group was given intra-gastric (i.g.) saline (1 mL) for 10 days. The ACR group was given i.g. ACR in saline (38.27 mg/kg titrated to 1 mL) for 10 days. The Se0.5 + ACR and Se1 + ACR groups were administered Se in saline (0.5 and 1 mg/kg, respectively) for 10 days and given i.g. ACR (38.27 mg/kg) one hour after the Se injections. The Se1 group was administered i.g. Se (1 mg/kg) for 10 days. On day 11, intracardiac blood samples were obtained from the rats while they were under anesthesia, after which they were euthanized by decapitation. Urea and creatinine concentrations of blood serum samples were analyzed with an autoanalyzer. Enzyme-linked immunosorbence immunosorbent assay (ELISA) was used to quantify malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH), glutathione peroxidase (GPx), catalase (CAT), tumor necrosis factor-α (TNF-α), nuclear factor-κB (NF-κB), interleukin (IL)-33, IL-6, IL-1β, cyclooxygenase-2 (COX-2), kidney injury molecule-1 (KIM-1), mitogen-activated protein kinase-1 (MAPK-1), and caspase-3 in kidney tissues. Renal tissues were evaluated by histopathological and immunohistochemical examinations for 8-hydroxylo-2'-deoxyguanosin 8-hydroxy-2'-deoxyguanosine (8-OhDG) and Bax. Serum urea and creatinine levels were higher in the ACR group than in the control, and these ACR-induced increases were prevented by high doses of Se. Additionally, ACR induced the renal oxidative stress, inflammation, apoptosis, and damage to DNA and tissue; likewise, these were prevented by high doses of Se. Taken with ACR, Se confers protection against ACR-induced nephrotoxicity in rats by reducing oxidative stress, inflammation, apoptosis, and DNA damage.
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Affiliation(s)
- Emin Sengul
- Department of Physiology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey.
| | - Volkan Gelen
- Department of Physiology, Faculty of Veterinary, Kafkas University, Kars, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Samet Tekin
- Department of Physiology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Yusuf Dag
- Department of Physiology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
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Tekin S, Adiguzel O, Cangul S, Atas O, Erpacal B. Evaluation of the use of PEEK material in post-core and crown restorations using finite element analysis. Am J Dent 2020; 33:251-257. [PMID: 33017528] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
PURPOSE To compare the stresses generated after the use of low elastic modulus polyetheretherketone (PEEK) as dental post and crown material with glass fiber post and metal supported ceramic crowns using finite element analysis. METHODS First an image of a maxillary central incisor taken on micro-computed tomography (micro-CT) was uploaded to a computer program. Modeling was made of all the materials in the computer environment and 3-dimensional (3D) virtual models were obtained. Using two different post materials (glass fiber and PEEK post) and two different crown materials (metal supported ceramic and PEEK crown), the modeling of the maxillary central tooth was completed and a total of four groups were obtained. Finally, 135° and 100 N forces were applied from the midpoint of the palatal surface. RESULTS The FEA analysis showed the use of PEEK as post material decreased the stress values in the post, post cement and composite core models and did not have any significant change in the dentin and crown cement models. The use of composite veneer with PEEK substructure as crown material reduced stress values in dentin, the post and composite core and increased stress values in both the post cement and the crown cement. CLINICAL SIGNIFICANCE Since the elastic modulus of the PEEK material is very close to dentin tissue, finite element stress analysis, less stress formation in the tooth and post core restoration compared to other post systems was observed. In this context, PEEK post may reduce irreversible complications.
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Affiliation(s)
- Samet Tekin
- Department of Prosthodontics, Faculty of Dentistry, Firat University Elazig, Turkey
| | - Ozkan Adiguzel
- Department of Endodontics, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
| | - Suzan Cangul
- Department of Restorative Dentistry, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey, suzanbali#64;outlook.com
| | - Osman Atas
- Department of Pedodontics, Faculty of Dentistry, Firat University Elazig, Turkey
| | - Begum Erpacal
- Department of Restorative Dentistry, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
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Cangul S, Adiguzel O, Tekin S. Comparison of Cytotoxicity of Four Different Adhesive Materials Before and After Polymerisation. Oral Health Prev Dent 2020; 18:43-52. [PMID: 32051970 DOI: 10.3290/j.ohpd.a43940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION The aim of this study was to make a quantitative comparison of the cytotoxic potentials of four different polymerised and unpolymerised self-etching adhesives which were newly used clinically. MATERIALS AND METHODS Cytotoxic effects of both polymerised and unpolymerised forms of all test adhesives were evaluated against L929 cell line using the MTT test. The activity for unpolymerised adhesives was assessed in different doses and incubation times manner. On the other hand, cytotoxicity of the polymerised adhesives prepared at different extraction times were evaluated as dependent on incubation times. Two-Way Variance Analysis and Bonferroni post-test was used for statistical evaluation. RESULTS There were statistically significant differences between the groups (p < 0.05). In general, it was shown that unpolymerised and polymerised forms of each of the test compounds exhibited a time-dependent cytotoxic effect. However, the effect on polymerised forms was found to be independent of the duration of the extraction, while the effect on the unpolymerised forms increased dose-dependently. It was also determined that the most cytotoxic material in the unpolymerised form was Dentsply and in the polymerised form was Tokuyama. CONCLUSIONS Dentsply should be preferred over Tokuyama to be able to provide clinically long-lasting restorations.
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Dundar S, Bozoglan A, Bulmus O, Tekin S, Yildirim TT, Kirtay M, Toy VE, Gul M, Bozoglan MY. Effects of restraint stress and high-fat diet on osseointegration of titanium implants: an experimental study. Braz Oral Res 2020; 34:e008. [PMID: 32049109 DOI: 10.1590/1807-3107bor-2020.vol34.0008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 12/10/2019] [Indexed: 12/17/2022] Open
Abstract
This study aimed to investigate the effects of chronic restraint stress (RS) and a high-fat diet (HFD) on the osseointegration of titanium implants in a rat model. After the surgical insertion of titanium implants into the metaphysis of the tibial bone, the rats were randomly divided into four equal groups (n = 8 each): control (CNT), restraint stress (RS), high-fat diet (HFD), and restraint stress plus high fat diet (RS-HFD). CNT: Rats received no further treatment during the 92-day experimental period. RS: Stress was applied to the rats beginning from two days after the implant surgery for one hour per day for the first 30 days, two hours per day for the next 30 days, and three hours per day for the last 30 days. HFD: Rats were fed a HFD for the following 90 days starting two days after surgery. RS-HFD: Rats were fed a HFD and RS was applied to rats for the following 90 days, starting two days after surgery. At the end of the experimental period, the rats were euthanized, and the implants and surrounding bone tissues were removed for histological analysis. Statistical analysis was performed by one way ANOVA and Bonferrroni tests. There were no significant differences in the bone-implant connection levels between the groups (p > 0.05), but in the HFD and RS-HFD groups, the bone filling ratios were found to be lower compared with the controls (p < 0.05) The data analyzed in this study suggest that an HFD with or without chronic RS adversely affected bone tissue in the rats during the 90-day osseointegration period.
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Affiliation(s)
- Serkan Dundar
- Firat University, Faculty of Dentistry, Department of Periodontology, Elazig, Turkey
| | - Alihan Bozoglan
- Firat University, Faculty of Dentistry, Department of Periodontology, Elazig, Turkey
| | - Ozgur Bulmus
- Firat University, Faculty of Medicine, Department of Physiology, Elazig, Turkey
| | - Samet Tekin
- Firat University, Faculty of Dentistry, Department of Prosthodontics, Elazig, Turkey
| | - Tuba Talo Yildirim
- Firat University, Faculty of Dentistry, Department of Periodontology, Elazig, Turkey
| | | | - Vesile Elif Toy
- Inonu University, Faculty of Dentistry, Department of Periodontology, Malatya, Turkey
| | - Mehmet Gul
- Harran University, Faculty of Dentistry, Department of Periodontology, Sanliurfa, Turkey
| | - Merve Yilmaz Bozoglan
- Ministry of Health, Elazig Health Directorate, Department of Paharmacology, Elazig, Turkey
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Karaman T, Oztekin F, Tekin S. Effect of Application Time of Two Different Disinfectants on the Surface Roughness of an Elastomeric Impression Material. J Clin Diagn Res 2020. [DOI: 10.7860/jcdr/2020/44752.13828] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Introduction: Pathogens, such as cytomegalovirus, hepatitis B virus, hepatitis C virus, herpes simplex virus types 1 and 2, and human immunodeficiency virus are transmitted, threatening the health of dental laboratory workers, especially as a result of saliva and blood contact of patients. To prevent cross-infection, impression materials should be disinfected at the end of the impression process in the mouth. Aim: To study the effect of application time of sodium hypochlorite and quaternary ammonium-based disinfectant solution on the surface roughness of an elastomeric impression material. Materials and Methods: In this in-vitro study done during March 2020, 10 disc-shaped samples were used in each group, with a total of 110 samples obtained from a light body elastomeric impression material with dimensions of 15×3 mm. The samples were kept in a sodium hypochlorite solution (Wizard; Rehber Kimya, Istanbul, Turkey) at concentrations of 1% and 5% for 1, 5, 10, and 30 minutes and in a quaternary ammonium-based disinfectant (Zeta 7 Solution, Zhermack SpA, Italy) for 10 and 30 minutes. Surface roughness measurements were taken with a profilometer device. The data obtained were statistically analysed by Kolmogorov-Smirnov test and Wilcoxon signed rank test for dependent/paired groups for the continuous data. The significance level was set to α=0.05. Results: A statistically significant difference was found between the control group and the 1% sodium hypochlorite (30 min p-value 0.037), and 5% sodium hypochlorite (30 min p-value 0.017). The statistical evaluation of the surface roughness of the samples with different concentrations of sodium hypochlorite and the same times was done and found statistically significant at 30 mins, p-value 0.021. Conclusion: The prolonged application of the sodium hypochlorite disinfectant at 1% and 5% concentrations caused a significant increase in the light body elastomeric impression material’s surface roughness
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Bir L, Tekin S. Documentation of clinical and laboratory features of patients with spinal isolated syndrome who have no cranial lesion. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tekin S, Keske S, Alan S, Batirel A, Karakoc C, Tasdelen-Fisgin N, Simsek-Yavuz S, Isler B, Aydin M, Kapmaz M, Yilmaz-Karadag F, Ergonul O. Predictors of fatality in influenza A virus subtype infections among inpatients in the 2015-2016 season. Int J Infect Dis 2019; 81:6-9. [PMID: 30641199 DOI: 10.1016/j.ijid.2019.01.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 08/03/2018] [Revised: 01/02/2019] [Accepted: 01/05/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Infection with the influenza A virus can cause severe disease and mortality. The effect of the different subtypes of influenza on morbidity and mortality is not yet known in Turkey. The aim of this study was to describe the predictors of fatality related to influenza A infection among hospitalized patients in Istanbul during the 2015-2016 influenza season, and to detail the differences between infections caused by H3N2 and H1N1. METHODS This was a multicenter study performed by the Istanbul Respiratory Infections Study Group of The Turkish Society of Clinical Microbiology and Infectious Diseases (KLİMİK), among patients hospitalized for influenza in Istanbul during the 2015-2016 influenza season. RESULTS A total of 222 patients hospitalized with laboratory-confirmed influenza during the 2015-2016 season were included in the study, of whom 25 (11.2%) died. The fatality rate was significantly higher among patients older than 65 years of age and those with chronic heart and kidney diseases (p<0.001), chronic neurological diseases (p=0.009), and malignancies (p=0.021). Thrombocyte counts were lower in those who died than in those who survived (p<0.004). The median alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase, creatinine phosphokinase, and C-reactive protein levels were higher among fatal cases. In the multivariate analysis for the prediction of fatality, being >65years old (odds ratio (OR) 6.9, 95% confidence interval (CI) 2.07-23.08, p=0.002), being infected with influenza A(H3N2) (OR 4.2, 95% CI 1.27-14.38, p=0.019), and a 1-day delay in antiviral use (OR 1.28, 95% CI 1.01-1.63, p=0.036) were found to be associated with an increased likelihood of fatality. CONCLUSIONS The case fatality rate of influenza A(H3N2) was significantly higher than that of influenza A(H1N1). Detection of the infection, allowing the opportunity for the early use of antiviral agents, was found to be important for the prevention of fatality. The vaccination should be prioritized for at-risk groups.
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Affiliation(s)
- S Tekin
- Department of Infectious Diseases and Clinical Microbiology, Koç University Hospital, Istanbul, Turkey
| | - S Keske
- Department of Infectious Diseases and Clinical Microbiology, American Hospital, Istanbul, Turkey
| | - S Alan
- Department of Infectious Diseases and Clinical Microbiology, Memorial Hospital, Istanbul, Turkey
| | - A Batirel
- Department of Infectious Diseases and Clinical Microbiology, Kartal Training and Research Hospital, Ministry of Health, Istanbul, Turkey
| | - C Karakoc
- Department of Infectious Diseases and Clinical Microbiology, Liv Hospital, Istanbul, Turkey
| | - N Tasdelen-Fisgin
- Department of Infectious Diseases and Clinical Microbiology, Haseki Training and Research Hospital, Ministry of Health, Istanbul, Turkey
| | - S Simsek-Yavuz
- Department of Infectious Diseases and Clinical Microbiology, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - B Isler
- Department of Infectious Diseases and Clinical Microbiology, Istanbul Training and Research Hospital, Ministry of Health, Istanbul, Turkey
| | - M Aydin
- Department of Infectious Diseases and Clinical Microbiology, Istanbul Hospital, Baskent University, Istanbul, Turkey
| | - M Kapmaz
- Department of Infectious Diseases and Clinical Microbiology, Safa Hospital, Istanbul, Turkey
| | - F Yilmaz-Karadag
- Department of Infectious Diseases and Clinical Microbiology, Goztepe Training and Research Hospital, Medeniyet University, Ministry of Health, Istanbul, Turkey
| | - O Ergonul
- Department of Infectious Diseases and Clinical Microbiology, School of Medicine, Koç University, Istanbul, Turkey.
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Demirci F, Tekin S, Değer Y. Evaluation of the use of PEEK material in implant-supported fixed restorations by finite element analysis. Niger J Clin Pract 2019; 22:1252-1258. [DOI: 10.4103/njcp.njcp_144_19] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Cangül S, Adıgüzel Ö, Tekin S, Öztekin F, Satıcı Ö. A COMPARISON OF THE WATER ABSORPTION AND WATER SOLUBILITY VALUES OF FOUR DIFFERENT COMPOSITE RESIN MATERIALS. Cumhuriyet Dental Journal 2018. [DOI: 10.7126/cumudj.449340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Abstract
Polyetheretherketone (PEEK) material is a polycyclic, aromatic, thermoplastic polymer that is semi-crystalline and has a linear structure. PEEK has good mechanical and electrical properties such as resistance to high temperature and resistance to hydrolysis. In addition, because of the property of high biocompatibility, use of PEEK has increased in orthopaedic and trauma cases. The most characteristic property of PEEK material is that it has a low elasticity modulus, close to that of bone. It has been suggested that stress-based problems could be reduced with this material due to the low elasticity modulus. In the light of this information, PEEK material could be considered as an alternative to conventional materials in the field of dentistry.
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Sarier M, Demir M, Goktas S, Duman I, Buyukkinaci M, Yuksel Y, Tekin S, Yavuz AH, Sengul A. Results of Real-time Multiplex Polymerase Chain Reaction Assay in Renal Transplant Recipients With Sterile Pyuria. Transplant Proc 2018; 49:1307-1311. [PMID: 28735999 DOI: 10.1016/j.transproceed.2017.02.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 02/07/2017] [Indexed: 12/17/2022]
Abstract
Urinary tract infections are a major cause of morbidity and hospitalization after renal transplantation. Patients treated with immunosuppressive drugs suffer not only from common uropathogens but also from opportunistic infections caused by unusual uropathogens. Sterile pyuria is associated with numerous infectious agents including viruses, fungi, and atypical or fastidious organisms. The objective of this study was to investigate the pathogens using real-time multiplex polymerase chain reaction (rtMPCR) assay in sterile pyuria of renal transplant recipients. In this prospective controlled study, pathogen detection was performed with rtMPCR assay on October 2016 in 60 patients with sterile pyuria who had undergone kidney transplantation. A total of 40 renal transplant patients were determined as the control group. Male-to-female ratio was same. The mean age of the subjects with sterile pyuria was 45.7 ± 12.1 (25-74). The mean duration after transplantation was 28.8 ± 3.97 (3-102) months. Pathogens were detected with rtMPCR in 61.7% of sterile pyuria group. This rate was significantly higher compared with the control group (P < .001). Two or more different pathogens were found in 13 (21.7%) patients in sterile pyuria group. The pathogens found included cytomegalovirus in 10 patients (19%), Gardnerella vaginalis and obligate anaerobes in 20 patients (38%), Ureaplasma spp in 17 patients (33%), Candida spp in 2 patients (4%), Mycoplasma hominis in one patient (2%), herpes simplex virus-2 in one patient (2%), and Trichomonas vaginalis in one patient (2%). Sterile pyuria may indicate the presence of genitourinary pathogens that cannot be detected with conventional urine culture method in renal transplantation patients. rtMPCR is an accurate and convenient method for detection of multiple potential pathogens of sterile pyuria in renal transplant patients.
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Affiliation(s)
- M Sarier
- Department of Urology, Kemerburgaz University Medical Faculty, İstanbul, Turkey.
| | - M Demir
- Department of Biochemistry, Kemerburgaz University Medical Faculty, İstanbul Turkey
| | - S Goktas
- Department of Clinical Microbiology and Infectious Disease, Gelişim Medical Laboratories, İstanbul, Turkey
| | - I Duman
- Department of Urology, Kemerburgaz University Medical Faculty, İstanbul, Turkey
| | - M Buyukkinaci
- Department of Obstetrics and Gynecology, Medical Park Hospital, Antalya, Turkey
| | - Y Yuksel
- Department of Transplantation Unit, Medical Park Hospital, Antalya, Turkey
| | - S Tekin
- Department of Surgery, Kemerburgaz University, İstanbul, Turkey
| | - A H Yavuz
- Department of Transplantation Unit, Medical Park Hospital, Antalya, Turkey
| | - A Sengul
- Department of Clinical Microbiology and Infectious Disease, Medical Park Hospital, Antalya, Turkey
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Aydın M, Ergönül Ö, Azap A, Bilgin H, Aydın G, Çavuş SA, Demiroğlu YZ, Alışkan HE, Memikoğlu O, Menekşe Ş, Kaya Ş, Demir NA, Karaoğlan I, Başaran S, Hatipoğlu Ç, Erdinç Ş, Yılmaz E, Tümtürk A, Tezer Y, Demirkaya H, Çakar ŞE, Keske Ş, Tekin S, Yardımcı C, Karakoç Ç, Ergen P, Azap Ö, Mülazımoğlu L, Ural O, Can F, Akalın H. Rapid emergence of colistin resistance and its impact on fatality among healthcare-associated infections. J Hosp Infect 2017; 98:260-263. [PMID: 29248504 DOI: 10.1016/j.jhin.2017.11.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 10/15/2017] [Accepted: 11/26/2017] [Indexed: 10/18/2022]
Abstract
This article describes the emergence of resistance and predictors of fatality for 1556 cases of healthcare-associated Gram-negative bloodstream infection in 2014 and 2015. The colistin resistance rate in Klebsiella pneumoniae was 16.1%, compared with 6% in 2013. In total, 660 (42.4%) cases were fatal. The highest fatality rate was among patients with Acinetobacter baumannii bacteraemia (58%), followed by Pseudomonas aeruginosa (45%), Klebsiella pneumoniae (41%), Enterobacter cloacae (32%) and Escherichia coli (28%). On multi-variate analysis, the minimum inhibitory concentrations for carbapenems [odds ratio (OR) 1.02, 95% confidence interval (CI) 1.01-1.04; P = 0.002] and colistin (OR 1.1, 95% CI 1.03-1.17; P = 0.001) were found to be significantly associated with fatality.
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Affiliation(s)
- M Aydın
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Başkent University, Istanbul, Turkey.
| | - Ö Ergönül
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Koç University, Istanbul, Turkey
| | - A Azap
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Ankara University, Ankara, Turkey
| | - H Bilgin
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Marmara University, Istanbul, Turkey
| | - G Aydın
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Ankara University, Ankara, Turkey; Infectious Diseases and Clinical Microbiology Department, Afyonkarahisar Training and Research Hospital, Afyonkarahisar, Turkey
| | - S A Çavuş
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Y Z Demiroğlu
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Başkent University, Adana, Turkey
| | - H E Alışkan
- Clinical Microbiology Department, School of Medicine, Başkent University, Adana, Turkey
| | - O Memikoğlu
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Ankara University, Ankara, Turkey
| | - Ş Menekşe
- Infectious Diseases and Clinical Microbiology Department, SBÜ Kartal Koşuyolu Yüksek İhtisas Hospital, Training and Research Hospital, Istanbul, Turkey
| | - Ş Kaya
- Infectious Diseases and Clinical Microbiology Department, Diyarbakır Training and Research Hospital, Diyarbakır, Turkey
| | - N A Demir
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Selçuk University, Konya, Turkey
| | - I Karaoğlan
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Gaziantep University, Gaziantep, Turkey
| | - S Başaran
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, İstanbul University, Istanbul, Turkey
| | - Ç Hatipoğlu
- Infectious Diseases and Clinical Microbiology Department, Ankara Training and Research Hospital, Ankara, Turkey
| | - Ş Erdinç
- Infectious Diseases and Clinical Microbiology Department, Ankara Training and Research Hospital, Ankara, Turkey
| | - E Yılmaz
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Uludağ University, Bursa, Turkey
| | - A Tümtürk
- Infectious Diseases and Clinical Microbiology Department, Ankara Yüksek İhtisas Training and Research Hospital, Ankara, Turkey
| | - Y Tezer
- Infectious Diseases and Clinical Microbiology Department, Ankara Yüksek İhtisas Training and Research Hospital, Ankara, Turkey
| | - H Demirkaya
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Başkent University, Ankara, Turkey
| | - Ş E Çakar
- Infectious Diseases and Clinical Microbiology Department, Ümraniye Training and Research Hospital, Istanbul, Turkey
| | - Ş Keske
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Koç University, Istanbul, Turkey
| | - S Tekin
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Koç University, Istanbul, Turkey
| | - C Yardımcı
- Infectious Diseases and Clinical Microbiology Department, Şanlıurfa Training and Research Hospital, Şanlıurfa, Turkey
| | - Ç Karakoç
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, İstinye University, Istanbul, Turkey
| | - P Ergen
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Medeniyet University, Istanbul, Turkey
| | - Ö Azap
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Başkent University, Ankara, Turkey
| | - L Mülazımoğlu
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Marmara University, Istanbul, Turkey
| | - O Ural
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Selçuk University, Konya, Turkey
| | - F Can
- Clinical Microbiology Department, School of Medicine, Koç University, Istanbul, Turkey
| | - H Akalın
- Infectious Diseases and Clinical Microbiology Department, School of Medicine, Uludağ University, Bursa, Turkey
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Yuksel Y, Tekin S, Yuksel D, Duman I, Sarier M, Yucetin L, Turan E, Celep H, Ugurlu T, Inal MM, Asuman YH, Demirbas A. Pregnancy and Delivery in the Sequel of Kidney Transplantation: Single-Center Study of 8 Years' Experience. Transplant Proc 2017; 49:546-550. [PMID: 28340831 DOI: 10.1016/j.transproceed.2017.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Depending on hyphothalamic, hyphophyseal, and gonadal axis dysfunction, anovulatory irregular cycles occur and the probability of pregnancy decreases in the patients with chronic kidney disease (CKD). Maternal mortality and morbidity rates are increased in CKD patients; the risk of premature delivery is 70% and the risk of preeclampsia is 40% more than normal among those with a creatine level of >2.5 mg/dL. METHODS If a pregnancy is expected in the sequel of kidney transplantation (KT), a multidisciplinary team approach should be adopted and both the gynecologist and the nephrologist should follow the patient simultaneously. Among 3883 patients who underwent KT at Antalya Medical Park Hospital Transplantion Department between November 2009 and October 2016, the records of 550 female patients between the ages of 18 and 40 years were examined retrospectively; 31 patients who complied with these criteria were included in the study group. In 6 of these patients who had an unplanned pregnancy, medical abortion was performed after the families were informed about the possible fetal anomalies caused by the use of everolimus in the first trimester, and they were excluded from the study (pregnant group). The control group consisted of 43 patients who had a KT and became pregnant, and of those who had recently undergone KT and shared similarities regarding age, CKD etiology, duration of dialysis, and number of transplants. RESULTS In both groups, the ages of the patients, their follow-up span and dialysis duration, tissue compatibility, age of the donor, and time elapsed until the pregnancy was analyzed, whereas in the control group, creatinine levels in the first, second, third, and fourth years after the KT were reviewed. Additionally, in the pregnant group, creatinine levels of the first, second, and third trimesters; delivery week; birth weight of the baby; APGAR scores of the first minute; postnatal creatinine levels of first, second, and third years; and prenatal, maternal, and postnatal acute rejections were reviewed. We measured the creatine clearance by use of the Cockcroft-Gault formula in the pregnancy group before pregnancy and during delivery [Cockcroft-Gault formula: (140 - age) × body weight (kg)/72 × plasma creatine level (mg/dL) × 0.85]. CONCLUSIONS Pregnancy after KT is risky both for the mother and the baby; however, if planned and followed in coordination within an experienced center, both the pregnancy period and the birth process can occur without distress.
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Affiliation(s)
- Y Yuksel
- Department of General Surgery and Transplantation, Medical Park Hospital, Antalya, Turkey.
| | - S Tekin
- Department of General Surgery, Faculty of Medicine, Kemerburgaz University, Istanbul, Turkey
| | - D Yuksel
- Department of Anesthesia, and Reanimasyon Unit, Training and Research Hospital, Antalya, Turkey
| | - I Duman
- Department of Urology, Faculty of Medicine, Kemerburgaz University, Istanbul, Turkey
| | - M Sarier
- Department of Urology, Faculty of Medicine, Kemerburgaz University, Istanbul, Turkey
| | - L Yucetin
- Department of General Surgery and Transplantation, Medical Park Hospital, Antalya, Turkey
| | - E Turan
- Department of General Surgery and Transplantation, Medical Park Hospital, Antalya, Turkey
| | - H Celep
- Department of General Surgery and Transplantation, Medical Park Hospital, Antalya, Turkey
| | - T Ugurlu
- Department of Obstetrics and Gynecology, Medical Park Hospital, Antalya, Turkey
| | - M M Inal
- Department of Obstetrics and Gynecology, Faculty of Medicine, Kemerburgaz University, Istanbul, Turkey
| | - Y H Asuman
- Department of Nephrology and Transplantation, Medical Park Hospital, Antalya, Turkey
| | - A Demirbas
- Department of General Surgery and Transplantation, Medical Park Hospital, Antalya, Turkey
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Yuksel Y, Tekin S, Yuksel D, Duman I, Sarier M, Yucetin L, Kiraz K, Demirbas M, Kaya Furkan A, Aslan Sezer M, Demirbas A, Asuman YH. Optimal Timing for Removal of the Double-J Stent After Kidney Transplantation. Transplant Proc 2017; 49:523-527. [PMID: 28340826 DOI: 10.1016/j.transproceed.2017.01.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Urologic complications (UC) have gradually decreased in recent years after advanced surgical experience. The incidence of urologic complications varies between 0.22% and 30% in different medical studies. There is no routine usage of double-J stenting (DJS) during renal transplantation (RT) in the literature. It is a necessity, and optimal timing for stent removal is an important question for many transplantation centers. METHODS This study includes 818 renal transplant patients whose ureteroneocystostomy anastomoses were completed by use of the Lich-Gregorie procedure during a 2-year period at a transplantation center. We performed 926 renal transplantations at Antalya Medical Park Hospital Renal Transplantation Center between January 2014 and January 2016. The patients were divided into four groups according to the timing of DJS removal. RESULTS For group 1, removal time for DJS was between 5 and 7 days; group 2, Removal time for DJS was between 8 and 14 days; group 3, removal time for DJS was between 15 and 21 days; and group 4, removal time for DJS was later than 22 days. The patients were divided into two groups according to removal time of stent as 5 to 14 days and >15 days. DJS was performed again in the patients whose urine output was reduced during the first 5 days after removal of the DJS, whose creatine level increased, and whose graft ureter and collecting tubules were extended as an ultrasonographic finding. CONCLUSIONS There is no declared optimal time for the removal of DJS. The removal time was reported between postoperative first week and 3 months in some of the reports of RT centers, according to their protocols. We emphasize that the optimal time for the removal of DJS is 14 to 21 days after RT, based on the findings of our large case report study.
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Affiliation(s)
- Y Yuksel
- Medical Park Hospital, Department of General Surgery and Transplantation, Antalya, Turkey.
| | - S Tekin
- Kemerburgaz University, Faculty of Medicine, Department of General Surgery, Istanbul, Turkey
| | - D Yuksel
- Training and Research Hospital, Department of Anesthesia and Reanimasyon Unit, Antalya, Turkey
| | - I Duman
- Kemerburgaz University, Faculty of Medicine, Department of Urology, Istanbul, Turkey
| | - M Sarier
- Kemerburgaz University, Faculty of Medicine, Department of Urology, Istanbul, Turkey
| | - L Yucetin
- Medical Park Hospital, Department of General Surgery and Transplantation, Antalya, Turkey
| | - K Kiraz
- Ataturk Goverment Hostpital, Department of Chest Diseases, Antalya, Turkey
| | - M Demirbas
- Yuksek Ihtisas Training and Research Hospital, Department of Urology, Bursa, Turkey
| | - A Kaya Furkan
- Medical Park Hospital, Department of General Surgery and Transplantation, Antalya, Turkey
| | - M Aslan Sezer
- Medical Park Hospital, Department of General Surgery and Transplantation, Antalya, Turkey
| | - A Demirbas
- Medical Park Hospital, Department of General Surgery and Transplantation, Antalya, Turkey
| | - Y H Asuman
- Medical Park Hospital, Department of Nephrology and Transplantation, Antalya, Turkey
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Ergönül Ö, Aydin M, Azap A, Başaran S, Tekin S, Kaya Ş, Gülsün S, Yörük G, Kurşun E, Yeşilkaya A, Şimşek F, Yılmaz E, Bilgin H, Hatipoğlu Ç, Cabadak H, Tezer Y, Togan T, Karaoğlan I, İnan A, Engin A, Alışkan HE, Yavuz SŞ, Erdinç Ş, Mulazimoglu L, Azap Ö, Can F, Akalın H, Timurkaynak F. Healthcare-associated Gram-negative bloodstream infections: antibiotic resistance and predictors of mortality. J Hosp Infect 2016; 94:381-385. [PMID: 27717604 DOI: 10.1016/j.jhin.2016.08.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [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: 01/31/2016] [Accepted: 08/02/2016] [Indexed: 12/28/2022]
Abstract
This article describes the prevalence of antibiotic resistance and predictors of mortality for healthcare-associated (HA) Gram-negative bloodstream infections (GN-BSI). In total, 831 cases of HA GN-BSI from 17 intensive care units in different centres in Turkey were included; the all-cause mortality rate was 44%. Carbapenem resistance in Klebsiella pneumoniae was 38%, and the colistin resistance rate was 6%. Multi-variate analysis showed that age >70 years [odds ratio (OR) 2, 95% confidence interval (CI) 1.22-3.51], central venous catheter use (OR 2.1, 95% CI 1.09-4.07), ventilator-associated pneumonia (OR 1.9, 95% CI 1.1-3.16), carbapenem resistance (OR 1.8, 95% CI 1.11-2.95) and APACHE II score (OR 1.1, 95% CI 1.07-1.13) were significantly associated with mortality.
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Affiliation(s)
- Ö Ergönül
- Koç University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey.
| | - M Aydin
- Başkent University School of Medicine, Istanbul Hospital, Infectious Diseases and Clinical Microbiology Department, Turkey
| | - A Azap
- Ankara University Medical Faculty, Infectious Diseases and Clinical Microbiology Department, Turkey
| | - S Başaran
- Istanbul University Istanbul Medical School, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - S Tekin
- Koç University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - Ş Kaya
- Diyarbakır Training and Research Hospital, Infectious Diseases and Clinical Microbiology Department, Diyarbakır, Turkey
| | - S Gülsün
- Diyarbakır Training and Research Hospital, Infectious Diseases and Clinical Microbiology Department, Diyarbakır, Turkey
| | - G Yörük
- Istanbul Training and Research Hospital, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - E Kurşun
- Başkent University School of Medicine, Adana Hospital, Infectious Diseases and Clinical Microbiology Department, Adana, Turkey
| | - A Yeşilkaya
- Başkent University School of Medicine, Ankara Hospital, Infectious Diseases and Clinical Microbiology Department, Ankara, Turkey
| | - F Şimşek
- Okmeydanı Training and Research Hospital, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - E Yılmaz
- Uludağ University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Bursa, Turkey
| | - H Bilgin
- Marmara University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - Ç Hatipoğlu
- Ankara Training and Research Hospital, Infectious Diseases and Clinical Microbiology Department, Ankara, Turkey
| | - H Cabadak
- Ankara Specialty Hospital, Infectious Diseases and Clinical Microbiology Department, Ankara, Turkey
| | - Y Tezer
- Ankara Specialty Hospital, Infectious Diseases and Clinical Microbiology Department, Ankara, Turkey
| | - T Togan
- Başkent University School of Medicine, Konya Hospital, Infectious Diseases and Clinical Microbiology Department, Konya, Turkey
| | - I Karaoğlan
- Gaziantep University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Gaziantep, Turkey
| | - A İnan
- Haydarpaşa Numune Training and Research Hospital, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - A Engin
- Cumhuriyet University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Sivas, Turkey
| | - H E Alışkan
- Başkent University School of Medicine, Adana Hospital, Infectious Diseases and Clinical Microbiology Department, Adana, Turkey
| | - S Ş Yavuz
- Istanbul University Istanbul Medical School, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - Ş Erdinç
- Ankara Training and Research Hospital, Infectious Diseases and Clinical Microbiology Department, Ankara, Turkey
| | - L Mulazimoglu
- Marmara University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - Ö Azap
- Başkent University School of Medicine, Ankara Hospital, Infectious Diseases and Clinical Microbiology Department, Ankara, Turkey
| | - F Can
- Koç University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Istanbul, Turkey
| | - H Akalın
- Uludağ University School of Medicine, Infectious Diseases and Clinical Microbiology Department, Bursa, Turkey
| | - F Timurkaynak
- Başkent University School of Medicine, Istanbul Hospital, Infectious Diseases and Clinical Microbiology Department, Turkey
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Parlak AE, Celik S, Karatepe M, Turkoglu S, Alayunt NO, Dastan SD, Ulas M, Sandal S, Tekin S, Koparir M. Investigation of biological effects of some Mannich Bases containing Bis-1,2,4- Triazole. Cell Mol Biol (Noisy-le-grand) 2016; 62:46-54. [PMID: 27453272] [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] [Received: 02/18/2016] [Accepted: 05/31/2016] [Indexed: 06/06/2023]
Abstract
In this study, the effects of Mannich bases containing bis-1,2,4-triazole on the levels of in vivo malondialdehyde (MDA) and antioxidant vitamins (A, E, C) were examined in serum, livers and kidneys of rats. DA and vitamin (A, E, C) levels were determined by high performance liquid chromatography (HPLC). Antioxidant effect was investigated by determining the MDA levels in Saccharomyces cerevisiae cells as in vitro. Furthermore, the antitumor effects of compounds were investigated against MCF-7 human breast cancer cells. Interrelations of results among control and compound groups were evaluated using SPSS statistical software package. As a result, some of the compounds showed effective biological activity when compared to control conditions. The test compounds used in this study may be effective for utilization in the selection and design of model compounds for further studies.
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Affiliation(s)
- A E Parlak
- Firat University Keban Vocational High School Elazig Turkey
| | - S Celik
- Usak University Faculty of Dentistry Usak Turkey
| | - M Karatepe
- Firat University, Faculty of Science Department of Chemistry Elazig Turkey
| | - S Turkoglu
- Firat University Faculty of Health Sciences Elazig Turkey
| | - N O Alayunt
- Usak University Banaz Vocational High School Usak Turkey
| | - S D Dastan
- Cumhuriyet University, Faculty of Veterinary Medicine Department of Biometrics and Genetics Sivas Turkey
| | - M Ulas
- Firat University, Faculty of Medicine Department of Physiology Elazig Turkey
| | - S Sandal
- Inonu University, Faculty of Medicine Department of Physiology Malatya Turkey
| | - S Tekin
- Inonu University, Faculty of Medicine Department of Physiology Malatya Turkey
| | - M Koparir
- Firat University, Faculty of Science Department of Chemistry Elazig Turkey
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Altintas R, Ediz C, Celik H, Camtosun A, Tasdemir C, Tanbek K, Tekin S, Colak C, Alan C. The effect of varicocoelectomy on the relationship of oxidative stress in peripheral and internal spermatic vein with semen parameters. Andrology 2016; 4:442-6. [DOI: 10.1111/andr.12172] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/08/2015] [Accepted: 01/18/2016] [Indexed: 11/28/2022]
Affiliation(s)
- R. Altintas
- Department of Urology; Inonu University School of Medicine; Malatya Turkey
| | - C. Ediz
- Department of Urology; Inonu University School of Medicine; Malatya Turkey
| | - H. Celik
- Department of Urology; Inonu University School of Medicine; Malatya Turkey
| | - A. Camtosun
- Department of Urology; Inonu University School of Medicine; Malatya Turkey
| | - C. Tasdemir
- Department of Urology; Inonu University School of Medicine; Malatya Turkey
| | - K. Tanbek
- Department of Physiology; Inonu University School of Pharmacy; Malatya Turkey
| | - S. Tekin
- Department of Physiology; Inonu University School of Pharmacy; Malatya Turkey
| | - C. Colak
- Department of Biostatistic; Inonu University School of Pharmacy; Malatya Turkey
| | - C. Alan
- Department of Urology; Canakkale Onsekiz Mart University School of Medicine; Canakkale Turkey
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Tekin S, Yuksel Y, Yucetin L, Yavuz HA. Middle Hepatic Vein Tributary Reconstruction of a Right Hepatic Graft in Adult Living Donor Liver Transplantation: A Case Report. Transplant Proc 2016; 47:1534-6. [PMID: 26093761 DOI: 10.1016/j.transproceed.2015.04.023] [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: 10/23/2022]
Abstract
In adult living donor (right liver) lobe transplantations (LDLT), the removal of the middle hepatic vein (MHV) with the graft and reconstruction carried out in the donor are of great importance. Here a 44-year-old male patient with hepatitis B-related end-stage liver failure is reported of whom his 34-year-old brother was evaluated as a donor candidate. At routine preoperative screening tests, neither the patient nor the donor candidate was found to have any pathological findings that might interfere with the transplantation. The donor candidate was assessed using multislice computed tomography for a standard liver volume measurement and anatomical structure evaluation and extended right hepatectomy including MHV was planned. MHV of the donor removed together with the graft was reconstructed to the common orifice of MHV-left hepatic vein using a cryopreserved aortic graft. In conclusion, if the MHV is removed with the graft in adult LDLT, appropriate reconstruction in the donor is also an important issue. Reconstruction carried out without creating tension and folding in the right hepatic vein is crucial for avoiding congestion and of great importance for the prevention of graft dysfunction.
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Affiliation(s)
- S Tekin
- Kemerburgaz University Medicalpark Hospital Complex.
| | - Y Yuksel
- Kemerburgaz University Medicalpark Hospital Complex
| | - L Yucetin
- Kemerburgaz University Medicalpark Hospital Complex
| | - H A Yavuz
- Kemerburgaz University Medicalpark Hospital Complex
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Tuncer M, Tekin S, Yuksel Y, Yücetin L, Dosemeci L, Sengul A, Demirbaş A. First International Paired Exchange Kidney Transplantations of Turkey. Transplant Proc 2016; 47:1294-5. [PMID: 26093701 DOI: 10.1016/j.transproceed.2015.04.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE We estimated that many patients on the waiting list for kidney transplantation in Turkey have immunologicaly incompatible suitable living donors. Paired exchange kidney transplantation (PETx) is superior to desensitization for patients with incompatible donors. Recently we decided to begin an international PETx program. METHODS We report three international living related paired kidney transplantations which occurred between May 14,2013, and March 7, 2014. The international donor and recipient operations were performed at Medical Park Hospital, Antalya, Turkey. All pairs were living related and written proofs were obtained according to Turkish laws. As with the donor procedures, the transplantation procedures were performed at the same time. RESULTS The uniqueness of these transplantations was that they are the first international exchange kidney transplantations between Turkey and Kirghizia. Currently all recipients are alive with wel-functioning grafts. CONCLUSION In our institute, a 5% increase was obtained in living-related kidney transplantations by the help of PETx on a national basis. We believe that international PETx may also have the potential to expand the donor pool.
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Affiliation(s)
- M Tuncer
- Department of Nephrology, Istanbul Kemerburgaz University, Istanbul, Turkey; Organ Transplant Center, Medical Park Antalya, Antalya, Turkey.
| | - S Tekin
- Organ Transplant Center, Medical Park Antalya, Antalya, Turkey; Department of General Surgery, Istanbul Kemerburgaz University, Istanbul, Turkey
| | - Y Yuksel
- Organ Transplant Center, Medical Park Antalya, Antalya, Turkey
| | - L Yücetin
- Organ Transplant Center, Medical Park Antalya, Antalya, Turkey
| | - L Dosemeci
- Organ Transplant Center, Medical Park Antalya, Antalya, Turkey; Department of Anesthesiology, Istanbul Kemerburgaz University, Istanbul, Turkey
| | - A Sengul
- Organ Transplant Center, Medical Park Antalya, Antalya, Turkey
| | - A Demirbaş
- Organ Transplant Center, Medical Park Antalya, Antalya, Turkey
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43
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Yucetin L, Bozoklar CA, Yanik O, Tekin S, Tuncer M, Demirbas A. An Investigation of Post-Traumatic Growth Experiences Among Living Kidney Donors. Transplant Proc 2016; 47:1287-90. [PMID: 26093699 DOI: 10.1016/j.transproceed.2015.04.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
More than 1 million patients are estimated to have undergone transplantation in the past years. In recent years, living-donor kidney transplantation accounted for more than 50% of all transplantations. Kidney transplantation from living donors is regarded as a contradictory case to the "do no harm" principle as a major surgical intervention is performed on a normal and healthy person at the expense of recovery of the organ recipient. The purpose of this study was to investigate positive psychological experiences, specifically post-traumatic growth (PTG), among living kidney donors. The sample consisted of a total of 184 kidney donors. The age of donors ranged between 21-76 (mean, 50.76; SD, 10.93). In this study 67.9% of donors were female. The recipients on dialysis group had higher scores than the recipients who did not have dialysis; the mean difference was significant on the subscales of change in life philosophy, change in relationships, change in self-perception, and in the PTGI score. The donors with higher education levels received higher scores on the subscale of change in relationships in comparison with donors with low education. The donors who were married and older than 51 years had higher scores than donors who were not married or younger on the subscale of change in self-perception. This is a single-center study; this center performs more than 500 kidney transplantations per year. There is a good system and experience at each step before and after transplantation for donor and recipient and relatives. It is a really big potential trauma to donate a kidney to your relative; you can change this negative effect to a positive effect with a good system. The present study also showed that when compared with the scale's absolute midpoint, kidney donors in the study sample experienced moderate-to-high levels of PTG.
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Affiliation(s)
- L Yucetin
- Antalya Medical Park Hospital, Antalya, Turkey.
| | | | - O Yanik
- Antalya Medical Park Hospital, Antalya, Turkey
| | - S Tekin
- Kemerburgaz University, Istanbul, Turkey
| | - M Tuncer
- Kemerburgaz University, Istanbul, Turkey
| | - A Demirbas
- Antalya Medical Park Hospital, Antalya, Turkey
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Tekin S, Yavuz HA, Yuksel Y, Ateş I, Yucetin L, Dosemeci L, Tuncer M, Demirbas A. Renal Transplantation in Recipients Older Than 65 Years: Retrospective Analysis of the Results of a 4-year (2008-2012) Experience. Transplant Proc 2015; 47:1356-9. [PMID: 26093718 DOI: 10.1016/j.transproceed.2015.04.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND We analyze the results of renal transplantation among recipients older than 65 years old over a 4-year period (2008-2012) from a single renal transplantation unit and compare results with younger recipients. METHODS We retrospectively analyzed the outcomes of 2018 renal transplantations performed between November 2008 and December 2012. The χ(2) test was used for the comparison of categorical data, and the Student t test was used for the analysis of continuous variables. Patient and graft cumulative actuarial survivals were calculated using the Kaplan-Meier analysis and we tested for differences with the Mantel-Cox log-rank test. RESULTS Seventy-five (3.7%) recipients were aged ≥ 65 years with a median age of 68 (range, 65 to 82) years. Actuarial graft survivals at 1, 2, and 3 years were 93.8%, 92.5%, and 90.3%, respectively, for the <65 group and 89.7%, 88.1%, and 83.1%, respectively, for the ≥ 65 group (P < .03). Actuarial patient survivals at 1, 2, and 3 years were 96.3%, 95.5%, and 94.7%, respectively, for the younger and 91.8%, 90.2%, and 88%, respectively, for the older samples (P < .03). When graft survival was censored for patient death with a functioning kidney at 1, 2, and 3 years, the results were similar between groups with 95.5%, 94%, and 92.8%, respectively, for recipients aged <65 years and 94.7%, 89.2%, and 89.2%, respectively, for recipients aged ≥ 65 years (P = .213). CONCLUSIONS Our results showed that renal transplantation in selected patients older than 65 years was associated with good outcomes; this indicates that it seems safe and effective to treat end-stage renal disease in the elderly knowing there are acceptable rates of graft and patient survival.
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Affiliation(s)
- S Tekin
- General Surgery and Transplantation Unit, Medical Park Hospital, Kemerburgaz University, Antalya, Turkey
| | - H A Yavuz
- Nephrology and Renal Transplantation, Atakent Research and Education Hospital, Acibadem University, Istanbul, Turkey.
| | - Y Yuksel
- General Surgery and Transplantation Unit, Medical Park Hospital, Antalya, Turkey
| | - I Ateş
- Department of Cardiology, Medlina BSK Lara, Antalya, Turkey
| | - L Yucetin
- Organ Transplantation Coordination Unit Medical Park Hospital, Antalya, Turkey
| | - L Dosemeci
- Intensive Care Unit, Medical Park Hospital, Antalya, Turkey
| | - M Tuncer
- Nephrology and Renal Transplantation, Antalya Medical Park Hospital, Kemerburgaz University, Antalya, Turkey
| | - A Demirbas
- General Surgery and Transplantation Unit, Medical Park Hospital, Antalya, Turkey
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Asuman Yavuz H, Tekin S, Yuksel Y, Ateş I, Yucetin L, Demir M, Uygun B, Tuncer M, Demirbas A. Donors With Hepatitis B Surface Antigen Positivity. Transplant Proc 2015; 47:1312-4. [DOI: 10.1016/j.transproceed.2015.04.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Tekin S, Zengin M, Tekin İ, Yucetin L, Yavuz H, Okutan H, Demirbas A. Simultaneous Cardiac Surgery and Renal Transplantation Compared With Renal Transplantation After Cardiac Surgery. Transplant Proc 2015; 47:1340-4. [DOI: 10.1016/j.transproceed.2015.04.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Yesildal F, Aydin FN, Deveci S, Tekin S, Aydin I, Mammadov R, Fermanli O, Avcu F, Acikel CH, Ozgurtas T. Aspartame induces angiogenesis in vitro and in vivo models. Hum Exp Toxicol 2014; 34:260-5. [PMID: 24925367 DOI: 10.1177/0960327114537535] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Angiogenesis is the process of generating new blood vessels from preexisting vessels and is considered essential in many pathological conditions. The purpose of the present study is to evaluate the effect of aspartame on angiogenesis in vivo chick chorioallantoic membrane (CAM) and wound-healing models as well as in vitro 2,3-bis-2H-tetrazolium-5-carboxanilide (XTT) and tube formation assays. In CAM assay, aspartame increased angiogenesis in a concentration-dependent manner. Compared with the control group, aspartame has significantly increased vessel proliferation (p < 0.001). In addition, in vivo rat model of skin wound-healing study showed that aspartame group had better healing than control group, and this was statistically significant at p < 0.05. There was a slight proliferative effect of aspartame on human umbilical vein endothelial cells on XTT assay in vitro, but it was not statistically significant; and there was no antiangiogenic effect of aspartame on tube formation assay in vitro. These results provide evidence that aspartame induces angiogenesis in vitro and in vivo; so regular use may have undesirable effect on susceptible cases.
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Affiliation(s)
- F Yesildal
- Department of Biochemistry, Gülhane Military Medical Academy, Ankara, Turkey
| | - F N Aydin
- Department of Biochemistry, Gülhane Military Medical Academy, Ankara, Turkey
| | - S Deveci
- Department of Pathology, Gülhane Military Medical Academy, Ankara, Turkey
| | - S Tekin
- School of Medicine, Gülhane Military Medical Academy, Ankara, Turkey
| | - I Aydin
- Department of Biochemistry, Gülhane Military Medical Academy, Ankara, Turkey
| | - R Mammadov
- National Nanotechnology Research Center, Bilkent University, Ankara, Turkey
| | - O Fermanli
- School of Medicine, Gülhane Military Medical Academy, Ankara, Turkey
| | - F Avcu
- Department of Haematology, Gülhane Military Medical Academy, Ankara, Turkey
| | - C H Acikel
- Department of Public Health and Biostatistics, Gülhane Military Medical Academy, Ankara, Turkey
| | - T Ozgurtas
- Department of Biochemistry, Gülhane Military Medical Academy, Ankara, Turkey
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Yücetin L, Tilif S, Keçecioğlu N, Yanik Ö, Özkan A, Eroğlu A, Dheir H, Tekin S, Güven B, Dinçkan A, Kaçar S, Tuncer M. Paired Exchange Kidney Transplantation Experience of Turkey. Transplant Proc 2013; 45:860-3. [DOI: 10.1016/j.transproceed.2013.02.094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Tuncer M, Tekin S, Yücetin L, Şengül A, Demirbas A. Comparison of Paired Exchange Kidney Transplantations With Living Related Kidney Transplantations. Transplant Proc 2012; 44:1626-7. [DOI: 10.1016/j.transproceed.2012.05.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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