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    Agomelatine Protection in an LPS-Induced Psychosis-Relevant Behavior Model
    (Int Scientific Information, Inc, 2015) Inanir, Sema; Copoglu, Umit Sertan; Kokacya, Hanifi; Dokuyucu, Recep; Erbas, Oytun; Inanir, Ahmet
    Background: The aim of this study was to investigate the effect of agomelatine in a psychosis-relevant behavior model. Material/Methods: We used 18 adult male Wistar rats in this study. Twelve rats given LPS for endotoxemia were randomly divided into 2 groups (n=6). Group I was treated with 1 mL/kg 0.9% NaCl i. p. and Group II was treated with 40 mg/kg agomelatine. Six normal rats served as the control group and were not given LPS for endotoxemia. Cylindrical steel cages containing vertical and horizontal metal bars with top cover were used. Rats were put in these cages for the purpose of orientation for 10 min. Apomorphine was given to rats removed from cages, and then they were immediately put back in the cages for the purpose of observing stereotyped conduct. Brain HVA levels and plasma TNF-alpha levels were evaluated in tissue homogenates using ELISA. The proportion of malondialdehyde (MDA) was measured in samples taken from plasma for detection of lipid peroxidation similar to thiobarbituric acid reactive substances. Results: LPS induced-plasma TNF-alpha, brain TNF-alpha, and plasma MDA levels were significantly lower in the LPS+ agomelatine group compared to the LPS+ saline group (p< 0.05). HVA levels and stereotype scores were significantly lower in the LPS+ agomelatine group compared to the LPS+ saline group (p < 0.001). Conclusions: Agomelatine reduced TNF-alpha, HVA, MDA levels, and the stereotype score in relevant models of psychosis. Our results suggest that the anti-inflammatory effect of agomelatine involved oxidant cleansing properties and that its effects on the metabolism of dopamine can play an important role in the model of psychosis.
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    Antipsychotic-like effect of minocycline in a rat model
    (E-Century Publishing Corp, 2014) Dokuyucu, Recep; Kokacya, Hanifi; Inanir, Sema; Copoglu, Umit Sertan; Erbas, Oytun
    Objectives: Tetracycline antibiotic drug minocycline has strongly neuroprotective and anti-inflammatory effects. Minocycline has also remarkable brain tissue penetration, is clinically entirely tolerated and properly absorbed when taken orally. In our study, we class with the effects of minocycline and chlorpromazine, a conventional antipsychotic drug, by evaluating the novelty-induced rearing, apomorphine-induced stereotypic behavior, and brain MDA levels in rats. Materials and Methods: Four groups of rat (n = 7) were applied with minocycline (50 and 100 mg/kg, i.p.), chlorpromazine (1 mg/kg, i.p.), or isotonic saline (1 mL/kg, i.p.). One hour later, apomorphine (2 mg/kg, s.c.) was applied to each rat. Result: Our results showed that both doses of minocycline significantly decreased the rearing behavior in rats, whereas the decrease with chlorpromazine was higher. Minocycline also decreased the stereotypy scores in a dose-dependent manner. Conclusion: We concluded that minocycline has beneficial effects on rearing behavior and stereotypy, which are accepted to be indicators of antipsychotic effect. Taken together, minocycline, as an anti-oxidant and cytoprotective agent, can be useful in neuroprotection especially on early stages of psychosis or prepsychotic patients with insignificant symptoms. Minocycline is worthy of being investigated for its anti-psychotic effects as a primary or an adjunctive drug.
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    Does helicobacter pylori cause psychiatric symptoms in dyspeptic patients?
    (Acta Medica Mediterranea, 2014) Kivrak, Yuksel; Kokacya, Hanifi; Copoglu, Umit Sertan; Dokuyucu, Recep; Ari, Mustafa; Sulu, Barlas; Atalay, Eray
    Objective: A good deal of researches regarding dyspepsia and Helicobacter Pylori (Hp), which are among the most important health problems, have been held. Both Hp and psychiatric symptoms can affect dyspepsia. However, it has not been researched whether Hp causes the psychiatric symptoms or not. In this study, it has been researched whether HP causes the psychiatric symptoms or not. Method: of the patients who applied with the problem of dyspepsia and were directed for endoscopy, 118 were evaluated. Scl-90 scale was applied. Those who proved biochemically and histopatologically HP and those who do not were compared. Results: It has been established that there is no meaningful difference in both groups in terms of somatization, obsessive-compulsive features, sensibility in interpersonal relations, anxiety, anger and hostility, phobic anxiety, paranoid thinking and psychoticism. While HP group got higher scores from the sub-groups of anxiety, obsession, depression, interpersonal sensibility, psychotic, paranoid and General Symptom Index , the HP (-) group got higher scores from sub-scales of somatization, anger and from additional ones. The scores that the both groups have obtained from the somatization sub-scale are above eleven, which is cutoff score. Besides the group with HP (+) has been detected to get a score over 1 from the subscales of anxiety, obsession, depression and interpersonal sensibility. Conclusion: HP does not cause psychiatric symptoms. Individuals who suffer from dyspepsia had better get examined.
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    DOES HELICOBACTER PYLORI CAUSE PSYCHIATRIC SYMPTOMS IN DYSPEPTIC PATIENTS?
    (Carbone Editore, 2014) Kivrak, Yuksel; Kokacya, Hanifi; Copoglu, Umit Sertan; Dokuyucu, Recep; Ari, Mustafa; Sulu, Barlas; Atalay, Eray
    Objective: A good deal of researches regarding dyspepsia and Helicobacter Pylori (Hp), which are among the most important health problems, have been held. Both Hp and psychiatric symptoms can affect dyspepsia. However, it has not been researched whether Hp causes the psychiatric symptoms or not In this study, it has been researched whether HP causes the psychiatric symptoms or not. Method: of the patients who applied with the problem of dyspepsia and were directed for endoscopy, 118 were evaluated. Scl-90 scale was applied. Those who proved biochemically and histopatologically HP and those who do not were compared. Results: It has been established that there is no meaningful difference in both groups in terms of somatization, obsessive-coin. pulsive features, sensibility in interpersonal relations anxiety anger and hostility, phobic anxiety, paranoid thinking and psychoticism. While HP group :got higher scores from the sub groups of anxiety, Obsession, depression, interpersonal sensibility, psychotic, paranoid and General Symptom Index, the HP (-) group got higher scores from sub scales of somatization, anger and from additional ones. The scores that the both groups have obtained from the somatization sub scale are above eleven;. which is cutoff score. Besides the group with Hp (+) has been detected to get a score. over I from the subscales of anxiety, obsession, depression and interpersonal sensibility. Conclusion: HP does not cause psychiatric symptoms: Individuals who suffer from dyspepsia had better get examined.
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    Effects of Paliperidone Palmitate on Coagulation: An Experimental Study
    (Hindawi Ltd, 2014) Yilmaz, Enver Demirel; Motor, Sedat; Sefil, Fatih; Pinar, Neslihan; Kokacya, Hanifi; Kisa, Mustafa; Oktar, Suleyman
    Objective. The aim of the present study was to examine the effects of a new antipsychotic drug paliperidone palmitate on hemogram and coagulation parameters in rats. Materials and Methods. Experiments were performed on 22 female albino Wistar rats (8-12 weeks old). Control group was given drinking water as vehicle (0.3 mL). PAL-1 rats were given 1 mg/kg paliperidone palmitate (in 0.3 mL drinking water) by oral gavage once a day for ten days and PAL-3 rats received 3 mg/kg paliperidone palmitate (in 0.3 mL drinking water) by oral gavage for ten days. Blood samples were drawn from the heart 24 hours after the last drug dose, and hemogram and coagulation parameters were measured with automated analyzers. Results. Hemogram did not change in the paliperidone treated groups compared to the controls. Factor VIII levels decreased in the PAL-1 and PAL-3 groups; and this decrease was significantly greater in the PAL-3. Factor IX levels decreased in PAL-3 rats, but its levels also increased in PAL-1 rats compared to the control. Discussion. Paliperidone has led to changes in the serum levels of coagulation factors VIII and IX in rats. As a result, paliperidone may be causing thromboembolism or bleeding in a dose-independent manner.