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    Wyświetlanie 1-6 z 6
    Tytuł:
    Placental prostate-specific antigen content in preeclampsia
    Autorzy:
    Can, Murat
    Acıkgoz, Serefden
    Guven, Berrak
    Ozmen Bayar, Ulku
    Powiązania:
    https://bibliotekanauki.pl/articles/1039712.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    preeclampsia
    prostate specific antigen
    Opis:
    Preeclampsia is a multisystem disorder that can manifest clinically with hypertension and proteinuria. Previous studies reported the presence of placental PSA in normal pregnancy but no study has been done in preeclampsia. The aim of this study was to investigate PSA content in preeclampsia. Preeclampsia was diagnosed according to the American College of Obstetricians and Gynecologists criteria. Placentas were obtained from 33 preeclamptic and 34 normotensive women. Placenta samples were homogenized and the supernatants were immediately analyzed. The tissue PSA content was measured by Immulite 2000 PSA assay. The data were analyzed with Student's t-test and Pearson correlation test. There was a significant difference in placental PSA content between preeclamptic and normotensive women. Placental content of PSA was higher in the preeclamptic group with intrauterine growth restriction (IUGR) than in the preeclamptic and normotensive pregnant without IUGR groups. No significant difference was found in this respect between preeclamptic and normotensive women without IUGR. In conclusion, we found that placental PSA content is elevated in preeclampsia and negatively correlated with infant birth weight. Further studies will be necessary to define the roles of PSA more precisely and to examine its effects on the pathophysiology of preeclampsia.
    Źródło:
    Acta Biochimica Polonica; 2012, 59, 3; 367-369
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determinants of plasma homocysteine in coal miners
    Autorzy:
    Mungan, A
    Can, Murat
    Kıran, Sibel
    Açıkgöz, Şerefden
    Güven, Berrak
    Powiązania:
    https://bibliotekanauki.pl/articles/1039548.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    coal miners
    homocysteine
    cystatin C
    vitamin B12
    folate
    Opis:
    Aim: Several studies suggest that coal miners are under risk of severe health problems such as cardiovascular, pulmonary, neurological, renal, hematological and musculoskeletal disorders. However, there are limited data on biochemical changes in underground workers. In our study we aimed to evaluate the association between serum homocysteine (Hcy), vitamin B12, cystatin C and folate levels in the blood of underground coal miners. Materials and Methods: Eighty one coal miners who work as underground or surface workers were recruited into our study. The study population was divided into two groups: the surface worker group (control group, n=33) and the underground worker group (n=48). The folate, vitamin B12, Hcy, cystatin C levels and body mass indexes (BMI) of both groups were measured and compared. Serum folate, Hcy and vitamin B12 levels were measured with a competitive chemiluminescence immunassay. Serum levels of cystatin C were determined by the latex particle-enhanced turbidimetric method using a cystatin C kit. Urea values were measured with a kinetic method on an automated analyzer. Results: There were no statistically significant differences between the underground workers and surface workers in the urea, cystatin C and vitamin B12 levels. High serum Hcy levels and low folate levels were found in underground workers compared with those in surface workers. The correlation between Hcy and folate levels was also statistically significant. Similarly, there was also a significant correlation between Hcy and vitamin B12, and between Hcy and cystatin C levels. Conclusions: Elevated Hcy levels may be associated with underground working but further research is necessary to understand the relation between elevated Hcy and increased prevalence of health problems in coal miners.
    Źródło:
    Acta Biochimica Polonica; 2013, 60, 3; 443-449
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    High mobility group B1 levels in sepsis and disseminated intravascular coagulation
    Autorzy:
    Eskici, Zeynep
    Açıkgöz, Şerefden
    Pişkin, Nihal
    Mungan, Görkem
    Can, Murat
    Güven, Berrak
    Köktürk, Fürüzan
    Powiązania:
    https://bibliotekanauki.pl/articles/1039652.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    HMGB1
    disseminated intravascular coagulation
    sepsis
    Opis:
    Cytokines trigger coagulant and fibrinolytic systems in sepsis to result in Disseminated Intravascular Coagulation (DIC) that is an important complication and leads to disseminated hemorrhages and multi-organ failure. High Mobility Group B1 DNA Binding (HMGB1) protein is a cytokine taking part in systemic inflammatory response. The objective of this study was to investigate HMGB1 levels in groups of septic patients with and without DIC.Twenty-one septic patients without DIC and 12 septic patients with DIC from the Intensive Care Unit (ICU) were included in the study. In addition, 20 patients admitted to the ICU without sepsis or DIC and 20 healthy volunteers served as controls. Levels of HMGB1, prothrombin time, activated partial thromboplastin time, fibrinogen, D-dimer, protein C, protein S, anti-thrombin III (ATIII), platelet (thrombocyte) and leukocyte count were determined. Levels of fibrinogen, protein C, ATIII and platelet count were significantly lower and D-dimer was significantly higher in the group with sepsis plus DIC compared to the group with sepsis without DIC. Levels of HMGB1 were higher in the group with sepsis and DIC compared to the group with sepsis; however, the difference was not statistically significant and the levels of HGMB1 of both groups were significantly higher compared to ICU and healthy control groups. HMGB1 levels were not significantly different in survivor and non survivor patients. HMGB1 levels did not differ in lower respiratory tract infection (LRTI) and urinary tract infection (UTI) in regard to the etiology of sepsis.
    Źródło:
    Acta Biochimica Polonica; 2012, 59, 4; 561-566
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prostate specific antigen levels after acute myocardial infarction
    Autorzy:
    Açıkgöz, Şerefden
    Can, Murat
    Doğan, Sait
    Mungan, Görkem
    Aydın, Mustafa
    Kelek, Serdar
    Sümbüloğlu, Vildan
    Powiązania:
    https://bibliotekanauki.pl/articles/1039848.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    total prostate specific antigen
    free prostate specific antigen
    acute myocardial infarction
    Opis:
    Prostate Specific Antigen (PSA), a member of kallikrein family, is a specific serine protease of prostatic tissue. In some case reports, changes in PSA levels after acute myocardial infarction (AMI) have been reported. In this study we evaluated variations in PSA levels post-AMI. Twenty-six male patients who had PSA levels within reference limits were included in the study. The diagnosis of AMI was confirmed by clinical findings, ECG (electrocardiogram) and cardiac marker studies. Serum total PSA (tPSA) and free PSA (fPSA) levels were measured at days 0 (day of admission), 1, 2 and 3 after AMI. PSA/albumin ratio was also calculated in order to evaluate the effect of dilution. A statistical analysis of the results of all patients revealed significant decrease in tPSA levels and tPSA/Albumin ratio at day 2 when compared to days 0 and 3, which showed a similar pattern. Changes of fPSA and fPSA/ Albumin ratio according to days were not found significant. In only four patients we found increased levels of tPSA and increased fPSA levels in three of them. These patients displayed severe problems such as renal failure, cardiac failure, ventricular aneurysm and cerebral ischemia due to cardiac arrest. The lower tPSA levels on day 2 suggest that tPSA can be eliminated rapidly from the circulation on days 1 and 2, probably through the formation of complexes of tPSA with acute phase proteins.
    Źródło:
    Acta Biochimica Polonica; 2011, 58, 4; 541-545
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cystain C and neuropeptid Y levels in brain tissues after experimental subarachnoid hemorrhage
    Autorzy:
    Açıkgöz, Şerefden
    Can, Murat
    Güven, Berrak
    Edebali, Nurullah
    Barut, Figen
    Büyükuysal, Çağatay
    Tekin, İshak
    Açıkgöz, Bektaş
    Powiązania:
    https://bibliotekanauki.pl/articles/1039224.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    cystatin C
    neuropeptid Y
    experimental subarachnoid hemorrhage
    Opis:
    The aim of this study was to investigate the changes in the levels of cystatin C, which protects neurodegeneration in the central nervous system with the inhibition of cysteine protease and by inducing autophagy in the pathogenesis of cerebral vasospasm and levels of vasoconstrictive neuropeptid Y (NPY) in the brain tissue homogenates of rat model of subarachnoid hemorrhage (SAH). Three experimental groups were used: Day 2 and Day 7 groups after SAH, and also a control group. There were seven Wistar albino rats in each group. SAH was accomplished by transclival basilar artery puncture. Rat cystatin C, rat NPY were determined with ELISA in brain tissue homogenates. Day 2 group showed significantly enhanced cystatin C values in comparision with the control group (P=0.048). NPY levels between the Day 2 and Day 7 groups and the control groups were not significantly different (P=0.315). In histopathological examination, there was less neuronal loss in the Day 2 group than in the Day 7 group. Regarding our results, it would be more valuable to measure NPY levels in specific brain areas. The increased cystatin C levels on the second day after SAH is probably a pathophysiologic mechanism to organize protease activity.
    Źródło:
    Acta Biochimica Polonica; 2014, 61, 4; 825-828
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sclerostin and bone metabolism markers in hyperthyroidism before treatment and interrelations between them
    Autorzy:
    Sarıtekin, İlker
    Açıkgöz, Şerefden
    Bayraktaroğlu, Taner
    Kuzu, Fatih
    Can, Murat
    Güven, Berrak
    Mungan, Görkem
    Büyükuysal, Çağatay
    Sarıkaya, Selda
    Powiązania:
    https://bibliotekanauki.pl/articles/1038540.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    hyperthyroidism
    sclerostin
    bone metabolism markers
    Opis:
    Sclerostin, which is a glycoprotein produced by osteocytes, reduces the formation of bones by inhibiting the Wnt signal pathway. Thyroid hormones are related with Wnt signal pathway and it has been reported that increased thyroid hormones in hyperthyroidism fasten epiphysis maturation in childhood, and increase the risk of bone fractures by stimulating the bone loss in adults. The aim of this study was to examine the sclerostin serum levels, the relation between sclerostin and thyroid hormones as well as the biochemical markers of the bone metabolism in patients with hyperthyroidism (including multinodular goiter and Graves' disease), whose treatments have not started yet. No difference was found in the serum sclerostin levels between the hyperthyroidism group (n=24) and the control group (n=24) (p=0.452). The serum osteocalcin levels and 24-hour urinary phosphorus excretion were found to be higher in the hyperthyroid group than in the control group (p<0.001, p=0.009). A positive correlation was determined between the sclerostin and bone alkaline phosphatase levels (p<0.001); a negative correlation between the osteocalcin and thyroid stimulating hormone (TSH) (p<0.05); a positive correlation between the osteocalcin and thyroid hormones (FT3,FT4) (p<0.001); and a positive correlation between the deoxypyridinoline and hydroxyproline (p<0.001). No correlation was determined between sclerostin and TSH,FT3,FT4 (p>0.05). Therefore, we consider that a long-term study that covers the pre-post treatment stages of hyperthyroidism, including both the destruction and construction of the skeleton would be more enlightening. Moreover, the assessment of the synthesis of sclerostin in the bone tissue and in the serum level might show differences.
    Źródło:
    Acta Biochimica Polonica; 2017, 64, 4; 597-602
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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