Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 61 - 70 of 70

Full-Text Articles in Medicine and Health Sciences

Serum Adenosine Deaminase Levels In Different Periods Of Pregnancy In Ewes, Muhammet Alan, Zahi̇t Tevfi̇k Ağaoğlu, Ahmet Uyar, Nuri̇ Altuğ Jan 2002

Serum Adenosine Deaminase Levels In Different Periods Of Pregnancy In Ewes, Muhammet Alan, Zahi̇t Tevfi̇k Ağaoğlu, Ahmet Uyar, Nuri̇ Altuğ

Turkish Journal of Veterinary & Animal Sciences

The levels of adenosine deaminase in different periods of pregnancy and after parturition were investigated in 13 ewes. Blood samples were collected on the day of mating and on days 10, 21, 35, 75, 104, 144 of pregnancy and on day 10 after parturition. Sera were harvested from these samples and adenosine deaminase levels were assayed as IU/L. Adenosine deaminase levels were high on the day of mating and after parturition but decreased during pregnancy. The lowest level was assayed just before parturition. Levels at the sampling times were 8.91, 8.30, 5.50, 3.96, 3.80, 2.18, 1.67 and 10.51 IU/L, respectively. …


Light And Electron Microscopic Examination Of The Single Kidney Of Unilateral Nephrectomized Rats During Pregnancy, H. Hamdi̇ Çeli̇k, Mustafa F. Sargon Jan 2002

Light And Electron Microscopic Examination Of The Single Kidney Of Unilateral Nephrectomized Rats During Pregnancy, H. Hamdi̇ Çeli̇k, Mustafa F. Sargon

Turkish Journal of Veterinary & Animal Sciences

The light microscopic and ultrastructural changes observed in the single kidney of pregnant rats were detected during mid-term pregnancy and after parturition and the results were compared with those of the pure nephrectomized group. The experimental studies were performed on 24 female virgin rats and all of them were subjected to unilateral nephrectomy. No pathology was observed in the light microscopic examination of the kidneys of the groups. In the transmission electron microscopic examination, in the pure nephrectomized group, cell swellings were present in the endothelial cells of the interlobular arteries and arterioles. Additionally, a mild cell swelling was seen …


The Relationship Between Ascorbic Acid, Oestradiol 17 \Beta And Progesterone In Plasma And Ovaries In Pregnant Holstein Cows, Seyfullah Hali̇loğlu, Behi̇ç Serpek, Nuri̇ Başpinar, Hüseyi̇n Erdem, Zafer Bulut Jan 2002

The Relationship Between Ascorbic Acid, Oestradiol 17 \Beta And Progesterone In Plasma And Ovaries In Pregnant Holstein Cows, Seyfullah Hali̇loğlu, Behi̇ç Serpek, Nuri̇ Başpinar, Hüseyi̇n Erdem, Zafer Bulut

Turkish Journal of Veterinary & Animal Sciences

This study was performed to determine the relationship between the corpus luteum weight/diameter, follicular diameter and the levels of vitamin C, progesterone and oestradiol 17-\beta of the plasma, corpus luteum and follicular fluid of pregnant Holstein cows in a slaughterhouse. Progesterone and oestradiol 17-\beta concentrations were determined by the microtitration plate EIA method. Vitamin C levels were determined by spectrophotometer. Although there was a positive correlation between follicular fluid oestradiol 17-\beta levels and the follicle diameter in the follicular fluid, in contrast to oestradiol 17-\beta levels, small follicles have higher progesterone content than large follicles. This negative correlation was due …


Long-Term Administration Of Alcohol In Rats: Effects On Glucagon And Insulin Levels In Sera During Pre-Pregnancy, Pregnancy And Lactation Periods, Bi̇rsen Zeybek, Gülhan Türkmen Jan 2002

Long-Term Administration Of Alcohol In Rats: Effects On Glucagon And Insulin Levels In Sera During Pre-Pregnancy, Pregnancy And Lactation Periods, Bi̇rsen Zeybek, Gülhan Türkmen

Turkish Journal of Veterinary & Animal Sciences

The effects of long-term administration of ethyl alcohol on insulin and glucagon hormone levels during pregnancy and lactation periods of rats were investigated. Female wistar albinos, 200±20 g, were used in this study. The control group consisted of 15 rats, and the experimental group consist of 25 ethyl-alcohol-addicted rats. While 0.9% saline (with sucrose) was to the control group, a 5 g kg perday dose of 20% ethyl alcohol was given to the experimental group. Blood samples were taken five times, during the pre-pregnancy (1), pregnancy (3), lactation (1) periods. Insulin and glucagon levels of sera were measured by RIA …


Maternal Serum Vitamin D Levels In The Third Trimester Of Pregnancy, İsmai̇l Pehli̇van, Şükrü Hatun, Meti̇n Aydoğan, Kadi̇r Babaoğlu, Gülcan Türker, Ayşe Sevi̇m Gökalp Jan 2002

Maternal Serum Vitamin D Levels In The Third Trimester Of Pregnancy, İsmai̇l Pehli̇van, Şükrü Hatun, Meti̇n Aydoğan, Kadi̇r Babaoğlu, Gülcan Türker, Ayşe Sevi̇m Gökalp

Turkish Journal of Medical Sciences

Aim: To measure serum vitamin D levels of pregnant women in the last trimester and to determine factors affecting serum levels. Methods: Seventy-eight pregnant women, 19-39 years old and having their third trimester between March and May 2000, were enrolled. Serum Ca, P and alkaline phosphatase and 25-hydroxyvitamin D_3 levels were measured in venous blood samples during the third trimester. Maternal age, education, socioeconomic status, number of gravida, nutrition, dressing habits and daily exposure time to sunlight were determined and their correlation with serum vitamin D levels were analyzed statistically. Results: The mean age of mothers was 26.1±5.1 years. The …


Distribution Of Different Fibronectin Isoforms In The Extracellular Matrices Of Human Term Placenta, Ayşe Yasemi̇n Demi̇r Weusten Jan 2002

Distribution Of Different Fibronectin Isoforms In The Extracellular Matrices Of Human Term Placenta, Ayşe Yasemi̇n Demi̇r Weusten

Turkish Journal of Medical Sciences

Fibronectins are considered to be molecules that play important roles in cell migration and cell differentiation. Fibronectin molecules are thought to influence the differentiation of trophoblasts and the adhesion of these cells to maternal tissues. The aim of the present study was to analyze the distribution of fibronectin isoforms and to evaluate the differences between matrix-type fibrinoids, and other types of matrices produced by both maternal and fetal tissues. Tissue samples were collected from different sites of human term placentas. By using immunohistochemistry, the expression of fibronectin isoforms was determined and they were demonstrated by SDS-PAGE and Western blotting methods. …


Erythrocyte, Saliva And Serum Arginase Activity With Serum Urea And Estrogen Levels Inakkaraman And Ivesi Sheep In Pregnancy And Postpartum, Sema Temi̇zer Ozan, Sema Yaralioğlu Gürgöze, Tülay İleri̇ Büyükoğlu, İhsan Hali̇feoğlu Jan 1999

Erythrocyte, Saliva And Serum Arginase Activity With Serum Urea And Estrogen Levels Inakkaraman And Ivesi Sheep In Pregnancy And Postpartum, Sema Temi̇zer Ozan, Sema Yaralioğlu Gürgöze, Tülay İleri̇ Büyükoğlu, İhsan Hali̇feoğlu

Turkish Journal of Veterinary & Animal Sciences

Arginase (L-arginine amidino hydrolase E.C. 3.5.3.1) is an enzyme catalyzing the last stage of the Krebs-Henseleit cycle and, thus, converting arginine into urea and ornithine. Arginase also plays a part in protein and polyamine synthesis and is affected by hormones in terms of metabolic status. In the present study, erythrocyte, saliva, and serum arginase activity together with serum urea and estrogen levels were examined in Akkaraman and Ivesi sheep in pregnancy and postpartum. Comparisons were then made between the species. In pregnancy the urea level in saliva increased. However, the urea level in serum decreased. No clear difference was observed …


Determination Of Pregnancy, Embryonic-Fetal Mortality, Ovarium Functions And Uterus Diameter In Cows By Ultrasonography, Seli̇m Aslan, German Wesenauer Jan 1999

Determination Of Pregnancy, Embryonic-Fetal Mortality, Ovarium Functions And Uterus Diameter In Cows By Ultrasonography, Seli̇m Aslan, German Wesenauer

Turkish Journal of Veterinary & Animal Sciences

In this study 57 cows at the puerperal stage (between 15-45 days) and at early pregnancy period (between 8-58 days) were subjected to clinical and Ultrasonography check at 10-day intervals. On the 8 th day of post insemination (p.ins.) areas of nidation ranging from 0,5-1,5 cm were established by means of US (n=53) and on 40 animals (70,2%) the development of these areas were followed until the 58th day of pregnancy. In the other 13 cows (22,8%), begining from early embriyonic featal deaths (18) days and late embriyonic featal deaths (28 days) were established ultrasonographycally. 4 animals (7,0%) that no …


The Role Of Plasma Endothelin-1 In Preeclampsia, Yalçın Ki̇mya, Candan Cengi̇z, Hakan Ozan, Levent Büyükuysal, Sami Aydin, Serhat Tatlikazan Jan 1999

The Role Of Plasma Endothelin-1 In Preeclampsia, Yalçın Ki̇mya, Candan Cengi̇z, Hakan Ozan, Levent Büyükuysal, Sami Aydin, Serhat Tatlikazan

Turkish Journal of Medical Sciences

Endothelin-1 levels in normal and preeclamptic pregnant women were determined serially to investigate the correlation between renal function tests and the severity markers of preeclampsia. Plasma endothelin-1 levels were determined in 45 serial plasma samples from 15 pregnant women who subsequently developed preeclampsia, and in 43 plasma samples from 25 women with uncomplicated pregnancies retrospectively. Renal function tests, complete blood counts, urinalysis and blood pressure measurements were performed during antenatal follow-ups of these patients. No correlations were set between plasma endothelin-1 levels and renal function tests, thrombocyte and white blood cell counts, proteinuria, systolic and diastolic blood pressures. There was …


The Effects Of Shock Waves On The Rat Fetus, Orhan Yalçin, Lütfi Tahmaz, Zuhal Yumbul, İdris Bi̇lgi̇ç Jan 1998

The Effects Of Shock Waves On The Rat Fetus, Orhan Yalçin, Lütfi Tahmaz, Zuhal Yumbul, İdris Bi̇lgi̇ç

Turkish Journal of Medical Sciences

There is an ongoing controversy regarding shock wave lithotripsy (SWL) contraindicated during pregnancy (1, 2). While the effects of shock waves on a variety of cells in both clinical and experimental studies are well documented, their effects on the fetus remain to be clarified. In this study, we investigated the effects of SWL on the rat fetus. On the 8th, 11th, 14th and 17th days of pregnancy, 100, 250 or 500 shock waves were produced with a Multimed 2001 ELMED Systems Lithotriptor. In ongoing pregnancy, the effects of SWL on fetuses ranged from mild in early pregnancy to moderate and …