1.Interaction between seed size and NaCl on germination and early seedling growth of some Turkish cultivars of chickpea (Cicer arietinum L.).
Muharrem KAYA ; Gamze KAYA ; Mehmet Demir KAYA ; Mehmet ATAK ; Sevil SAGLAM ; Khalid Mahmood KHAWAR ; Cemalettin Yasar CIFTCI
Journal of Zhejiang University. Science. B 2008;9(5):371-377
Chickpea is an important food legume crop of Turkey and is largely grown for human consumption on low moisture or salt-affected soils. The objective of the study was to find the effects of NaCl stress at electrical conductivities of 4.5, 8.6, 12.7 and 16.3 dS/m and seed sizes (7, 8 and 9 mm) on germination and early seedling growth of three popular chickpea cultivars (AKN-97, Gokce and Uzunlu-99). Mean frequency of germination, germination time, germination index, root length, shoot length and seedling fresh weight showed seed size-dependent responses of cultivars to salt stress. In general, small seeds germinated and grew more rapidly compared to medium and large seeds of the same cultivars against all levels of salt stress, with the best results in cultivar Uzunlu-99. No effect of NaCl treatments was observed on frequency of germination; however, a drastic decrease in early seedling growth was recorded at increased NaCl concentrations. Regression analysis results showed a significantly positive relationship (P<0.01) between seed size and mean germination time, whereas a significantly negative relationship was recorded between seed size and germination index, root length, shoot length. Moreover, linear regression values apparently confirmed that increased seed size in each cultivar affected decreased germination index, root and shoot lengths with enhanced mean germination time. Thus, it was concluded that the use of small seeds could considerably reduce the production costs of chickpea in salt-affected soils.
Cicer
;
growth & development
;
Linear Models
;
Seedlings
;
growth & development
;
Seeds
;
anatomy & histology
;
physiology
;
Sodium Chloride
;
pharmacology
2.Nesfatin-1 Hormone Levels in Patients with Antisocial Personality Disorder and Their Relationship with Clinical Variables
Şüheda KAYA ; Filiz ÖZSOY ; Gülay TAŞCI ; Mehmet KALAYCI
Psychiatry Investigation 2020;17(9):889-895
Objective:
This study aims to investigate the levels of nesfatin-1-hormone in patients with Antisocial Personality Disorder (ASPD) and their relationship with clinical variables.
Methods:
A total of 90 people (45 ASPD, 45 controls) were included in our study. Sociodemographic Data Form, Beck-Depression-Inventory (BDI), Beck-Anxiety-Inventory (BAI), Barratt Impulsivity Scale (BIS-11), Buss-Durkee-Hostility-Inventory (BDHI) were applied to all participants. Venous blood samples were taken from participants at the same time of the day when they were hungry.
Results:
It was found that the BDI and BAI scores of the ASPD were higher than those of the controls (p<0.001, for both scales). The scores in BIS-11; motor and nonplanning-impulsivity subscales were higher than those of the controls (p<0.001, 0.036, respectively). The scores obtained by the ASPD were higher in all subscales of BDHI (p<0.001). For the nesfatin-1-hormone, the values of the ASPD were lower than those of the controls (p=0.044). No relationship was found between the nesfatin-1-hormone and any other laboratory parameters and applied scales (p>0.05).
Conclusion
This is the first study to examine the nesfatin-1-hormone levels in patients with any personality disorder. Further studies with more participants are needed in different types of personality disorders to understand the relationship between personality disorder and nesfatin-1-hormone levels.
3.Decreased Serum Sulphydryl Levels as a Sign of Increased Oxidative Stress in Generalized Anxiety Disorder.
Mehmet Cemal KAYA ; Yasin BEZ ; Ibrahim Fatih KARABABA ; Ali EMHAN ; Nurten AKSOY ; Mahmut BULUT ; Mehmet GUNES ; Abdullah ATLI ; Salih SELEK
Psychiatry Investigation 2013;10(3):281-285
OBJECTIVE: In recent years, many published studies have focused on the relationship between oxidative stress and psychiatric disorders. However, studies in generalized anxiety disorder (GAD) are few despite relatively high prevalence rates. In an attempt to fill this gap in the literature we aimed to measure serum levels of free sulphydryl, an important member of antioxidant defense mechanisms, of the patients with GAD. METHODS: A total of 35 (23 female, 12 male) GAD patients without any other co-morbid medical or psychiatric disorder and 35 (23 female, 12 male) healthy controls have been included in the study. Disease severity of the patients were quantified by using the Hamilton Anxiety Rating Scale (HAM-A). Serum free sulphydryl group levels of patients and healthy controls were measured in an appropriate way. RESULTS: Mean level of serum sulphydryl groups was significantly lower in the patient group. There was a negative correlation between their level and the disease duration. However, they did not show any significant correlation with the disease severity. CONCLUSION: Decreased serum sulphydryl level observed in pure GAD patients suggests an increased oxidative stress in these patients. Well designed future researches are needed to replicate our findings and to test the implications of the present study.
Anxiety Disorders*
;
Anxiety
;
Defense Mechanisms
;
Female
;
Humans
;
Male
;
Oxidative Stress*
4.Bilateral Ureteral Stones and Spontaneous Perirenal Hematoma in a Patient with Chronic Idiopathic Thrombocytopenic Purpura.
Mehmet AKYUZ ; Selahattin CALISKAN ; Cevdet KAYA
Korean Journal of Urology 2012;53(7):502-504
Idiopathic thrombocytopenic purpura (ITP) is an immune thrombocytopenia with a usually benign clinical course. Bleedings are mostly of the mucocutaneous type with mild symptoms. Massive bleedings requiring transfusion are rarely seen, unless the number of platelets decreases to extremely low levels. In this case, bilateral perirenal hematoma and bilateral distal ureteral stones were detected on a non-contrast computed tomography scan of a 57-year-old male patient who developed macroscopic hematuria during his treatment in the clinics of internal medicine because of left flank pain and diffuse petechial rashes all over his body. The patient, who had been receiving chronic ITP treatment for 1 year, had a very low platelet count (4,000/mm3). The patient was prescribed bed rest, and his platelet count increased to a safe level for surgical intervention of above 50,000/mm3 with administration of prednisolone, intravenous immune globulin, and platelet suspension. A stone-free state was achieved after bilateral ureterorenoscopy and pneumatic lithotripsy. A conservative approach was followed for the perirenal hematoma. Upon regression of the perirenal hematoma, the patient was discharged at 9 weeks postoperatively.
Bed Rest
;
Blood Platelets
;
Exanthema
;
Flank Pain
;
Hematoma
;
Hematuria
;
Humans
;
Immunoglobulins, Intravenous
;
Internal Medicine
;
Lithotripsy
;
Male
;
Middle Aged
;
Platelet Count
;
Prednisolone
;
Purpura
;
Purpura, Thrombocytopenic, Idiopathic
;
Thrombocytopenia
;
Ureter
;
Ureteral Calculi
5.The effects of different surface treatments on the shear bond strengths of two dual-cure resincements to CAD/CAM restorative materials
Nurullah TURKER ; Ulviye Şebnem BUYUKKAPLAN ; Ebru Kaya BAŞAR ; Mehmet Mustafa ÖZARSLAN
The Journal of Advanced Prosthodontics 2020;12(4):189-196
. The aim of the present study was to investigate the effects of surface treatments on the bond strengths between polymer-containing restorative materials and two dual-cure resin cements. MATERIALS AND METHODS.In the present study, rectangular samples prepared from Lava Ultimate (LU) and Vita Enamic (VE) blocks were used. The specimen surfaces were treated using CoJet sandblasting, 50 μm Al2O3 sandblasting, % 9 HF (hydrofluoric) acid, ER,Cr:YSGG laser treatment, and Z-Prime. Dual-cure resin cements (TheraCem and 3M RelyX U 200) were applied on each specimen’s treated surface. A micro-tensile device was used to evaluate shear bond strength. Statistical analysis was performed using the SAS 9.4v3. RESULTS. While the bond strengthusing TheraCem with LU or VE was not statistically significant (P=.164), the bond strength using U200 with VE was statistically significant (P=.006). In the TheraCem applied VE groups, Z-Prime and HF acid were statistically different from CoJet, Laser, and Sandblast groups. In comparison of TheraCem used LU group, there was a statistically significant difference between HF acid and other surface treatments. CONCLUSION. The bondingperformance between the restorative materials and cements were material type-dependent and surface treatment had a large effect on the bond strength. Within the limitations of the study, the use of both U200 and TheraCem may be suggested if Z-prime was applied to intaglio surfaces of VE. The cementation of LU using TheraCem is suitable after HF acid conditioning of the restoration surfaces.
6.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*
7.Letter to the Editor: Folliculitis Associated with Intermittant Pneumatic Compression.
Alparslan Bayram CARLI ; Erkan KAYA ; Hasan TURGUT ; Mehmet Burak SELEK
Yonsei Medical Journal 2014;55(2):545-546
No abstract available.
Folliculitis*
8.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
9.Lipid Peroxidation, Erythrocyte Superoxide-Dismutase Activity and Trace Metals in Young Male Footballers.
Gokhan METIN ; Pinar ATUKEREN ; A Ata ALTURFAN ; Tevfik GULYASAR ; Mehmet KAYA ; M Koray GUMUSTAS
Yonsei Medical Journal 2003;44(6):979-986
Physical training is known to induce oxidative stress in individuals subjected to intense exercise. In this study, we investigated plasma malondialdehyde (MDA) levels and erythrocyte superoxide dismutase (SOD) activity of 25 young male footballers and a control group of similar age. Red blood cell (RBC) count, haemoglobin (Hb) and haematocrit (Hct) values, and copper (Cu) and zinc (Zn) levels were also examined. The maximal oxygen uptake (VO2max) of all subjects was determined in order to establish their functional capacity. The main finding of the present study was that plasma MDA levels, one of the most commonly used markers of lipid peroxidation, of this group of footballers aged under 21 decreased slightly when compared with those of the control group (p < 0.001). In contrast, erythrocyte SOD activity was higher in the footballer group than in the controls (p < 0.001). Footballers who are under regular training showed an improved antioxidant activity in comparison to sedentary controls. Plasma copper concentration, RBC count and Hb concentration of the footballer group were all significantly lower than those of the control group, (p < 0.001, p < 0.01, p < 0.01, respectively). Investigating the footballers' data with Spearman's correlation analyses, the correlation coefficients (r) between Zn/Cu ratio and SOD was positive (r=0.44; p < 0.05) ; and between VO2max and SOD (r=0.42; p < 0.05) were both positive. On the basis of statistical analysis, we suggest that regular exercise may be beneficial in cases of oxidative damage by reducing the amount of lipid peroxidation and increasing the activity of the antioxidant enzyme SOD.
Aged
;
Aged, 80 and over
;
Erythrocytes/*enzymology
;
Human
;
Lipid Peroxidation
;
Male
;
*Soccer
;
Superoxide Dismutase/*blood
;
Trace Elements/*blood
10.Nasogastric tube placement into the hepaticojejunostomy anastomosis in pancreaticoduodenectomy: a simple surgical technique for prevention of bile leak.
Bulent KAYA ; Yetkin OZCABI ; Iksan TASDELEN ; Ender ONUR ; Kemal MEMISOGLU
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2016;20(2):89-92
Hepaticojejunostomy is an important part of many surgical procedures including pancreaticoduodenectomy. Biliary leakage from hepaticojejunostomy may be associated with intraabdominal abscess formation, biliary peritonitis, and even mortality. A 72-year-old female patient was admitted to our hospital with obstructive jaundice. After initial evaluation, she was diagnosed with distal common bile duct obstruction without accurate diagnosis. Before planned pancreaticoduodenectomy, biliary drainage with a T-tube was performed due to the presence of cholangitis. After the first operation, pancreaticoduodenectomy was performed. Postinflammatory changes around the hilar region made the hepaticojejunostomy risky. A bilio-digestive anastomosis was performed using a new technique. A nasogastric tube was placed into the common bile duct proximal to the anastomosis. The postoperative course of the patient was uneventful. The use of a nasogastric tube as a stent in risky hepaticojejunostomies is a simple technique that can be beneficial.
Abscess
;
Aged
;
Bile*
;
Cholangitis
;
Common Bile Duct
;
Diagnosis
;
Drainage
;
Female
;
Humans
;
Jaundice, Obstructive
;
Mortality
;
Pancreaticoduodenectomy*
;
Peritonitis
;
Stents