1.Decreased Prolidase Activity in Patients with Posttraumatic Stress Disorder.
Süleyman DEMIR ; Mahmut BULUT ; Abdullah ATLI ; Ibrahim KAPLAN ; Mehmet Cemal KAYA ; Yasin BEZ ; Pınar Güzel ÖZDEMIR ; Aytekin SIR
Psychiatry Investigation 2016;13(4):420-426
OBJECTIVE: Many neurochemical systems have been implicated in the development of Posttraumatic Stress Disorder (PTSD). The prolidase enzyme is a cytosolic exopeptidase that detaches proline or hydroxyproline from the carboxyl terminal position of dipeptides. Prolidase has important biological effects, and to date, its role in the etiology of PTSD has not been studied. In the present study, we aimed to evaluate prolidase activity in patients with PTSD. METHODS: The study group consisted of patients who were diagnosed with PTSD after the earthquake that occurred in the province of Van in Turkey in 2011 (n=25); the first control group consisted of patients who experienced the earthquake but did not show PTSD symptoms (n=26) and the second control group consisted of patients who have never been exposed to a traumatic event (n=25). Prolidase activities in the patients and the control groups were determined by the ELISA method using commercial kits. RESULTS: Prolidase activity in the patient group was significantly lower when compared to the control groups. Prolidase activity was also significantly lower in the traumatized healthy subjects compared to the other healthy group (p<0.01). CONCLUSION: The findings of the present study suggest that the decrease in prolidase activity may have neuroprotective effects in patients with PTSD.
Cytosol
;
Dipeptides
;
Earthquakes
;
Enzyme-Linked Immunosorbent Assay
;
Exopeptidases
;
Healthy Volunteers
;
Humans
;
Hydroxyproline
;
Methods
;
Neuroprotective Agents
;
Proline
;
Stress Disorders, Post-Traumatic*
;
Turkey
2.Evaluation of Paraoxonase, Arylesterase and Malondialdehyde Levels in Schizophrenia Patients Taking Typical, Atypical and Combined Antipsychotic Treatment.
Mehmet GÜNEŞ ; Mehmet Akif CAMKURT ; Mahmut BULUT ; Süleyman DEMIR ; Aslıhan Okan IBILOĞLU ; Mehmet Cemal KAYA ; Abdullah ATLI ; Ibrahim KAPLAN ; Aytekin SIR
Clinical Psychopharmacology and Neuroscience 2016;14(4):345-350
OBJECTIVE: Human serum paraoxonase (PON1) prevents lipids from peroxidation and functions as an antioxidant mechanism. Malonyldialdehyde (MDA) is the final product of lipid peroxidation and can be used as an indicator of oxidative stress. The aim of this study was to investigate PON1, MDA, and arylesterase (ARY) levels in schizophrenic patients who are taking typical, atypical, or combined (typical and atypical) antipsychotic drug treatment, with respect to those of healthy controls. METHODS: We evaluated 41 patients (11 taking typical antipsychotics, 19 taking atypical antipsychotics, 11 taking combined anti-psychotics) and 43 healthy controls. RESULTS: MDA levels were higher in schizophrenic patients taking typical antipsychotics compared with healthy controls (p=0.001). ARY levels were higher in patients taking atypical antipsychotics compared with healthy controls (p=0.005). PON1 activity was similar in all groups. CONCLUSION: Our results indicate that treatment with typical antipsychotic drugs could be related to increased MDA levels; and antipsychotic medication may increase PON1 levels in schizophrenic patients.
Antipsychotic Agents
;
Aryldialkylphosphatase*
;
Humans
;
Lipid Peroxidation
;
Malondialdehyde*
;
Oxidative Stress
;
Schizophrenia*
3.Apelin Levels In Isolated Coronary Artery Ectasia.
Mehmet Zihni BILIK ; Ibrahim KAPLAN ; Abdulkadir YILDIZ ; Mehmet Ata AKIL ; Halit ACET ; Murat YUKSEL ; Nihat POLAT ; Mesut AYDIN ; Mustafa OYLUMLU ; Faruk ERTAS ; Hasan KAYA ; Sait ALAN
Korean Circulation Journal 2015;45(5):386-390
BACKGROUND AND OBJECTIVES: The etiopathogenesis of coronary artery ectasia (CAE) is not known completely. In most of the cases, CAE is associated with atherosclerosis; however, isolated CAE has a nonatherosclerotic mechanism. The association between atherosclerotic coronary artery disease and apelin has been examined in previous studies. However, the role of plasma apelin in isolated coronary artery ectasia has not been studied. In this study, we investigated the relationship between plasma apelin levels and isolated coronary artery ectasia. SUBJECTS AND METHODS: The study population included a total of 54 patients. Twenty-six patients had isolated CAE (53.6+/-8.1 years); 28 patients with normal coronary arteries (51.6+/-8.8 years) and with similar risk factors and demographic characteristics served as the control group. Apelin levels were measured using an enzyme-linked immunoassay kit. RESULTS: Apelin level in the CAE group was significantly lower (apelin=0.181+/-0.159 ng/mL) than that in the control group (apelin=0.646+/-0.578 ng/mL) (p=0.033). Glucose, creatinine, total cholesterol, triglyceride, low density lipoprotein cholesterol, and high density lipoprotein cholesterol levels were not significantly different between the two groups. CONCLUSION: In this study, we showed that patients with isolated CAE have decreased plasma apelin levels compared with the control group. Based on the data, a relationship between plasma apelin and isolated CAE was determined.
Atherosclerosis
;
Cholesterol
;
Cholesterol, HDL
;
Cholesterol, LDL
;
Coronary Artery Disease
;
Coronary Vessels*
;
Creatinine
;
Dilatation, Pathologic*
;
Glucose
;
Humans
;
Immunoassay
;
Inflammation
;
Plasma
;
Risk Factors
;
Triglycerides
4.Recurrent Prosthetic Mitral Valve Dehiscence due to Infective Endocarditis: Discussion of Possible Causes.
Suleyman ERCAN ; Gokhan ALTUNBAS ; Hayati DENIZ ; Gokhan GOKASLAN ; Vuslat BOSNAK ; Mehmet KAPLAN ; Vedat DAVUTOGLU
The Korean Journal of Thoracic and Cardiovascular Surgery 2013;46(4):285-288
Prosthetic valves are being widely used in the treatment of heart valve disease. Prosthetic valve endocarditis (PVE) is one of the most catastrophic complications seen in these patients. In particular, prosthetic valve dehiscence can lead to acute decompensation, pulmonary edema, and cardiogenic shock. Here, we discuss the medical management of late PVE in a patient with a prior history of late and redo early PVE and recurrent dehiscence. According to the present case, we can summarize the learning points as follows. A prior history of infective endocarditis increases the risk of relapse or recurrence, and these patients should be evaluated very cautiously to prevent late complications. Adequate debridement of infected material is of paramount importance to prevent relapse. A history of dehiscence is associated with increased risk of relapse and recurrent dehiscence.
Debridement
;
Endocarditis
;
Heart Valve Diseases
;
Humans
;
Learning
;
Mitral Valve
;
Pulmonary Edema
;
Recurrence
;
Shock, Cardiogenic
5.A rare reason of abdominal compartment syndrome: non-Hodgkin lymphoma.
Mehmet Abdussamet BOZKURT ; Kaplan Baha TEMIZGONUL ; Osman KONES ; Halil ALIS
Journal of the Korean Surgical Society 2012;83(4):242-245
Abdominal compartment syndrome (ACS) is characterized by intra-abdominal hypertension (IAH) which affects all body systems. In healthy individuals, normal intra-abdominal pressure (IAP) is <5 to 7 mmHg. The upper limit of IAP is generally accepted to be 12 mmHg. ACS has been classified into primary, secondary, and tertiary subtypes. Non-Hodgkin lymphoma (NHL) is a rare reason for ACS. We report here one case of NHL as a primary retroperitoneal mass in an 80-year-old male patient who presented with IAH.
Aged, 80 and over
;
Humans
;
Intra-Abdominal Hypertension
;
Lymphoma, Non-Hodgkin
;
Male
6.Toxocara Seroprevalence in Schizophrenic Patients in Turkey.
Mustafa KAPLAN ; Ahmet KALKAN ; Salih KUK ; Kutbeddin DEMIRDAG ; Mehmet OZDEN ; S Sirri KILIC
Yonsei Medical Journal 2008;49(2):224-229
PURPOSE: To investigate the seroprevalence of toxocariasis in patients diagnosed as schizophrenia. PATIENTS AND METHODS: Ninety-eight schizophrenic patients hospitalized at The Elazig Psychiatric Hospital were included in the study. Anti-Toxocara IgG and/or IgM antibodies were determined by using commercial Toxocara canis IgG and/or IgM ELISA kit. RESULTS: Seropositivity for T. canis was detected in 45 (45.9%) of 98 patients and 2 (2.0%) of 100 control subjects the difference was statistically significant (p < 0.001). The seroprevalence was 40.4% (19 cases) and 51.0% (26 cases) for female and male subjects, respectively (p=0.3). When the seropositive and seronegative schizophrenic patients were compared with respect to the age group environment they were living in, occupation period of follow up and number of hospitalizations, there were no differences between the two groups (all, p > 0.05). CONCLUSION: In conclusion, the schizophrenic state seems to present a high risk for Toxocara infection in Turkey.
Adolescent
;
Adult
;
Animals
;
Antibodies, Helminth/blood
;
Enzyme-Linked Immunosorbent Assay
;
Female
;
Humans
;
Immunoglobulin G/blood
;
Immunoglobulin M/blood
;
Male
;
Middle Aged
;
Schizophrenia/*blood/parasitology
;
Seroepidemiologic Studies
;
Toxocara/*growth & development/immunology
;
Toxocariasis/*blood/epidemiology
;
Turkey/epidemiology
7.Collet-Sicard Syndrome Associated with Occipital Condyle Fracture and Epidural Hematoma.
Fatih Serhat EROL ; Cahide TOPSAKAL ; Metin KAPLAN ; Hanifi YILDIRIM ; Mehmet Faik OZVEREN
Yonsei Medical Journal 2007;48(1):120-123
A 31-year-old male was presented with a very rare case of ipsilateral palsies of the nerves IX through XII (Collet-Sicard syndrome) after a closed head injury. An occipital condyle fracture that was associated with epidural hematoma was diagnosed by computed tomography. The patient was conservatively managed, and following the treatment, partial neurological recovery ensued. The phenomenon of occipital condyle fracture involving the last four cranial nerve palsies is relatively rare. Although 3 cases of Collet-Sicard syndrome that were caused by an occipital condyle fracture has been reported, the association between condyle fracture and epidural hematoma has never been described before.

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