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Articles 52921 - 52950 of 62812

Full-Text Articles in Medicine and Health Sciences

Laminar Distribution Of The Sources Ofascending Spino-Supraspinal Pathways Involvedin Nociceptive Transmission And Pain Modulation, Figen Gövsa, Gülgün Kayalioğlu, Berrin Erdem, Vladimir A. Maisky, Nuran Hariri Jan 1998

Laminar Distribution Of The Sources Ofascending Spino-Supraspinal Pathways Involvedin Nociceptive Transmission And Pain Modulation, Figen Gövsa, Gülgün Kayalioğlu, Berrin Erdem, Vladimir A. Maisky, Nuran Hariri

Turkish Journal of Medical Sciences

In the present study, we made an attempt to detect more exactly the laminar distribution of spinomesencephalic, spinothalamic and spinotelencephalic tract neurons and to estimate the character of axonal collateralization in these spinosupraspinal pathways in the rat by means of retrograde double-labelling of cells with Fluoro-Gold (FG) and Primuline O (Pr). We found that sources of spino-supraspinal pathways to the upper centers of the brain stem, nucleus accumbens and septal nuclei were mixed together in the marginal zone, deep dorsal horn, reticulated area, lamina X and the lateral spinal nucleus, but have as a rule their own discrete projection fields. …

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The Effect Of Pre-And Postnatal Cd Exposure Onconduction Velocity In Sciatic Nerve, Piraye Yargiçoğlu, Aysel Ağar, Ümit Kemal Şentürk, Nimet İzgüt Uysal, Derya Kiliç Jan 1998

The Effect Of Pre-And Postnatal Cd Exposure Onconduction Velocity In Sciatic Nerve, Piraye Yargiçoğlu, Aysel Ağar, Ümit Kemal Şentürk, Nimet İzgüt Uysal, Derya Kiliç

Turkish Journal of Medical Sciences

The purpose of the study has been to investigate the effect of preand postnatal Cd exposure on conduction velocity of sciatic nerve. Pregnant Swiss albino rats were divided into three groups as control (C), cadmium (Cd) and non-cadmium (NCd) groups. Control animals received tap water while rats in Cd group received Cd as CdCl 2 in their drinking water during the experimental period. The mothers of the NCd group were given Cd during their pregnancy but given tap water after birth. Twenty-two days after birth (postnatal day 22) the rats were separated from the mothers. The present study was performed …

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The Validity Of Mahmood Scoring System Inmeningiomas, Sülen Sarioglu, M Serefettin Canda, Tülay Canda, Fulya Çakalağaoğlu, Nagihan Yalçin Jan 1998

The Validity Of Mahmood Scoring System Inmeningiomas, Sülen Sarioglu, M Serefettin Canda, Tülay Canda, Fulya Çakalağaoğlu, Nagihan Yalçin

Turkish Journal of Medical Sciences

Meningiomas are well known for their diverse histological apperance. Although generally considered benign, their behaviour is unpredictable and characterized by frequent recurrences. Histopathological features associated with aggressive behaviour have been described, but even the World Health Organization (WHO) grading system provides broad criteria for malignancy. Mahmood et al. described a scoring system, based on 6 histopathological features, establishing objective criteria. In this study, 73 specimens from 61 cases which were diagnosed as meningioma have been reviewed and scored by the criteria described by Mahmood et al. in order to search for the availability of the application of the system. Out …

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Blood Lactate/Pyruvate As A Predictor Of Shockdevelopment In Acute Myocardial Infarction, Arzu Seven, Sabiha Ci̇velek, Figen Kocaman, Lale Koldaş, Gülden Candan Jan 1998

Blood Lactate/Pyruvate As A Predictor Of Shockdevelopment In Acute Myocardial Infarction, Arzu Seven, Sabiha Ci̇velek, Figen Kocaman, Lale Koldaş, Gülden Candan

Turkish Journal of Medical Sciences

This study, designed to investigate the blood lactate and pyruvate levels in AMI, was carried out on 41 patients. Based upon the localization of AMI, the patients were studied under anterior AMI (n=17), anteroseptal AMI (n=9) and inferior AMI (n=15) groups. Left ventricular failure developed in five patients with anterior AMI and in one patient with anteroseptal AMI. Cardiogenic shock developed in two patients with anterior AMI. Lactate and pyruvate were analysed in the blood samples drawn 24-48 hours after AMI. CPK, CPK-MB, AST and LDH activities were determined in the sera of blood samples drawn within 6-24 hours of …

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Effects Of The N-Ras Oncogene On The Expression Of Other Cellular Genes In Co25 Myoblast Cells, Hülya Zeyti̇noğlu, Ian Gibson Jan 1998

Effects Of The N-Ras Oncogene On The Expression Of Other Cellular Genes In Co25 Myoblast Cells, Hülya Zeyti̇noğlu, Ian Gibson

Turkish Journal of Medical Sciences

The effects of the N- ras oncogene on the transcription levels of c- myc, p53, c-K-ras and b-actin genes have been investigated by Northern blotting in a cell line which normally differentiates into myotubes. Treatment of cells with dexamethasone activates N- ras gene, then cells proliferate and form foci. The transcription level of c- myc gene was generally high during transformation whereas c-K- ras mRNAs levels were high during differentiation. Following induction of the N- ras oncogene, the level of c-myc mRNA first decreased in two days and then increased in three and four days. During differentiation, c-K- ras mRNA …

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Alterations Of Erythrocyte And Plasma Lipid Peroxides As Well As Antioxidant Mechanism In Patients With Type Ii Diabetes Mellitus (Niddm), Yıldız Atamer, Yüksel Koçyi̇ği̇t, Aytaç Atamer, Nuriye Mete, Naime Canoruç, Gülten Toprak Jan 1998

Alterations Of Erythrocyte And Plasma Lipid Peroxides As Well As Antioxidant Mechanism In Patients With Type Ii Diabetes Mellitus (Niddm), Yıldız Atamer, Yüksel Koçyi̇ği̇t, Aytaç Atamer, Nuriye Mete, Naime Canoruç, Gülten Toprak

Turkish Journal of Medical Sciences

It has been maintained that free oxygen radicals (FOR) that occur in cell have important roles in the ethiopathogenesis of diabet, and that cell damage progressing as a result of their accumulation is responsible for the development of diabetic complications. In recent years, along with free oxygen radicals, antioxidant mechanisms and the substances influencing as free radical cleaner have been investigated in connection with diabet. With this respect, in a total of 30 patients with type II Diabetes Mellitus (NIDDM), 15 with diabetic retinopathy and 15 without diabetic retinopathy, and in 20 healthy subjects, we measured glutathione (GSH), catalase and …

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Histologic Evaluation In Patients With Benign Prostatic Hyperplasia Treated With Finasteride And Surgery Alone, Özkan Polat, Osman Gül, İsa Özbey, Cemal Gündoğdu, Yılmaz Bayraktar Jan 1998

Histologic Evaluation In Patients With Benign Prostatic Hyperplasia Treated With Finasteride And Surgery Alone, Özkan Polat, Osman Gül, İsa Özbey, Cemal Gündoğdu, Yılmaz Bayraktar

Turkish Journal of Medical Sciences

In this study, we compared stroma, epithelium, glandular lumen, smooth muscle hyperplasia, inflammation and fibrous components in benign prostatic hyperplasia (BPH) tissue between the group undergone surgery only and the group who had taken finasteride (5 alpha-reductase inhibitor) prior to surgical treatment. Prostate adenomas were obtained from both 12 patients administered finasteride for six months prior to surgical treatment and those of 11 patients undergone only surgical treatment. The histological evaluation were performed quantitatively by planimetry. The mean epithelium ratio in the group administered 5 alpha-reductase inhibitor prior to surgery lessened approximately twofold compared to the other group's. In conclusion, …

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Comparison Of Two Catheterizable Continence Mechanisms For Urinary Diversion, Ahmet Ersay, Şükrü Boylu, Hayrettin Şahi̇n, Nedim Aban, Yılmaz Akgün, İbrahim Taçyildiz Jan 1998

Comparison Of Two Catheterizable Continence Mechanisms For Urinary Diversion, Ahmet Ersay, Şükrü Boylu, Hayrettin Şahi̇n, Nedim Aban, Yılmaz Akgün, İbrahim Taçyildiz

Turkish Journal of Medical Sciences

Benchekroun hydraulic ileal valve and hipple valve techniques are widely used continent valve systems in recontructive urology, We compared continence, catheterizability and complications of the nipple and Benchekroun hydraulic ileal valve ruling out the inherent error of comparing different reservoirs under different conditions. A pouch was constructed with two methods present side by side. Comparable data from each valve were statistically evaluated through Mann-Whitney U test. Although the rate of complications such as dessusception and difficult catheterization for each valve are close, leakage of the Benchekroun hydraulic ileal valve was observed at significantly higher pouch volumes than in the nipple …

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Needle Localization For Nonpalpable Breast Cancers, Murat Kapkaç, Sinan Ersi̇n, Servet Yetgi̇n, Ahmet Eldem Orhan Özbal, Emin Özdedeli̇, Rasih Yilmaz Jan 1998

Needle Localization For Nonpalpable Breast Cancers, Murat Kapkaç, Sinan Ersi̇n, Servet Yetgi̇n, Ahmet Eldem Orhan Özbal, Emin Özdedeli̇, Rasih Yilmaz

Turkish Journal of Medical Sciences

Nonpalpable breast lesions are being detected with the advent of improved mammographic techniques. Although only 20-30 % of these lesions are malignant, definitive diagnosis has usually required a needle- localization breast biopsy during a 6 year period were reviewed to determine the effect of this procedure on the diagnosis and treatment of early breast cancer. Calcifications were the most common mammographic abnormality for biopsy. Of the 62(27%) patients diagnosed with malignancy, 38 (61%) had invasive carcinoma and 24 (39%) had noninvasive carcinoma. Breast conservation was the most common form (53%) of surgical treatment in this study. Metastatic disease involving the …

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Juvenile Dermatomyositis Associated With Acute Lymphocytic Leukemia, F. Ferda Özki̇nay, Sevgi̇ Mi̇r, Nuretti̇n Onur Kutlu, Caner Kabasakal, Eren Demi̇rtaş, Kaan Kavakli, Güngör Ni̇şli̇ Jan 1998

Juvenile Dermatomyositis Associated With Acute Lymphocytic Leukemia, F. Ferda Özki̇nay, Sevgi̇ Mi̇r, Nuretti̇n Onur Kutlu, Caner Kabasakal, Eren Demi̇rtaş, Kaan Kavakli, Güngör Ni̇şli̇

Turkish Journal of Medical Sciences

No abstract provided.

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Specific Binding And Epitope Recognition In Lectin Subtypes, Ayşegül Ayyildiz Jan 1998

Specific Binding And Epitope Recognition In Lectin Subtypes, Ayşegül Ayyildiz

Turkish Journal of Medical Sciences

No abstract provided.

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Lymphangitic Carcinomatosa And Bronchorrea In A Patient With Mucoepidermoid Tumor Of The Lung, F. Sema Oymak, Olcay Belenli, Murat Alper Jan 1998

Lymphangitic Carcinomatosa And Bronchorrea In A Patient With Mucoepidermoid Tumor Of The Lung, F. Sema Oymak, Olcay Belenli, Murat Alper

Turkish Journal of Medical Sciences

No abstract provided.

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Adenoid Cystic Carcinoma Of The Breast, Mustafa Şahi̇n, Mustafa Erbi̇len, Adnan Hasanoğlu, Ertan Bülbüloğlu, Nasuhi E. Aydin Jan 1998

Adenoid Cystic Carcinoma Of The Breast, Mustafa Şahi̇n, Mustafa Erbi̇len, Adnan Hasanoğlu, Ertan Bülbüloğlu, Nasuhi E. Aydin

Turkish Journal of Medical Sciences

No abstract provided.

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Controversy On Prophylactic Oophorectomy, Utku Özcan, Didem Akyol, Selma Oransay, Murat Ekin, Tayfun Güngör, Oya Gökmen Jan 1998

Controversy On Prophylactic Oophorectomy, Utku Özcan, Didem Akyol, Selma Oransay, Murat Ekin, Tayfun Güngör, Oya Gökmen

Turkish Journal of Medical Sciences

The merits of prophylactic oophorectomy at the time of hysterectomy have been debated for many years. The most compelling argument for prophylactic removal of the ovaries has always been the prevention of ovarian cancer (2). Prophylactic oophorectomy has advantages and disadvantages. The actual incidence of cancer in retained ovaries is difficult to estimate. The advantages of prophylactic oophorectomy include the prevention of ovarian cancer, the alleviation of symptoms from residual ovary syndrome and the elimination of the need for reoperation for adnexal disease (2). Disadvantages include surgical castration, which results in the need for hormone replacement, and changes in self-image …

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Amino Acid Neurotransmitter Levels In Thecerebral Cortex Of Mice Receivingimipenem/Cilastatin -Lack Of Excitotoxicity In Thecentral Nervous System, Mete Akisü, Nilgün Kültürsay, Canan Çoker, Çiler Akisü, Meral Baka Jan 1998

Amino Acid Neurotransmitter Levels In Thecerebral Cortex Of Mice Receivingimipenem/Cilastatin -Lack Of Excitotoxicity In Thecentral Nervous System, Mete Akisü, Nilgün Kültürsay, Canan Çoker, Çiler Akisü, Meral Baka

Turkish Journal of Medical Sciences

Imipenem, a very potent carbapenem derivative beta-lactam antibiotic, has recently found a major place in the treatment of antibiotic-resistant nosocomial infections. However, a convulsive side effect is seen in 0.2-3 percent of patients. Although it is suggested that this effect is due to the inhibition of gamma-aminobutyric acid (GABA) mediated inhibitory transmission, no study has been reported so far showing its effect on the cerebral cortex free inhibitory and excitatory amino acid levels. Twenty-one male TO albino mice were divided into three equal groups and given therapeutic (40 mg/kg/day) or excessive (500 mg/kg/day) doses of Imipenem/cilastatine (I/C) or saline solution …

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Anatomic And Hrct Demonstration Ofmidline Sternal Foramina, Zühre Aslı Aktan, Recep Savaş Jan 1998

Anatomic And Hrct Demonstration Ofmidline Sternal Foramina, Zühre Aslı Aktan, Recep Savaş

Turkish Journal of Medical Sciences

Midline sternal foramina are uncommon anomalies. Because of this, it is possible to mistakenly identify such a defect as defect as a gunshot wound or sternal disease by CT. In this study the frequency of midline sternal foramina in Turkish adults is investigated by high resolution computed tomography (HRCT) and visual inspection of sternal bones.

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A Study On The Interparietal Bone In Man, Ferruh Yücel, Hulusi Eği̇lmez, Zehra Akgün Jan 1998

A Study On The Interparietal Bone In Man, Ferruh Yücel, Hulusi Eği̇lmez, Zehra Akgün

Turkish Journal of Medical Sciences

In the present study a total of 44 dry skulls and 500 skull films from the Sivas region of Turkey were examined to determine whether or not the interparietal bone was present. The incidence of interparietal bones was found to be 2.8 percent (15/544).

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Plasma Antioxidant Status And Nitrate Levels Inpatients With Hypertension Andcoronary Heart Disease, Bülent Sözmen, Cahit Kazaz, Dilek Taskiran, Leyla Aslan, Akan Akyol, Eser Yıldırım Sözmen Jan 1998

Plasma Antioxidant Status And Nitrate Levels Inpatients With Hypertension Andcoronary Heart Disease, Bülent Sözmen, Cahit Kazaz, Dilek Taskiran, Leyla Aslan, Akan Akyol, Eser Yıldırım Sözmen

Turkish Journal of Medical Sciences

In this study, we investigated first; the possible involvement of nitric oxide and antioxidant enzyme level in the pathogenesis of essential hypertension and second we investigated serum nitrite-nitrate and antioxidant enzyme activities and lipid profiles (total, HDL and LDL cholesterol, trygliceride) to determine the relationship between these parameters in atherosclerosis. 13 patients with coronary heart disease, 18 patients with essential hypertension and 16 age-matched health subjects were taken into this study. Plasma nitrite, nitrate levels were measured by Griess reaction, erythrocyter superoxide dismutase and catalase activities were determined by the methods of Misra&Fridovich and Aebi, respectively. Serum lipid analysis were …

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Determination Of Ph, Fibronectin, Cholesterol,Lactate Dehydrogenase And Sialic Acid In Thedifferentiation Of Nonmalignant Andmalignant Ascites, Hülya Aksoy, Ahmet Kiziltunç, Yilmaz Aksoy, Naciye Kurtul, Ebubekir Bakan Jan 1998

Determination Of Ph, Fibronectin, Cholesterol,Lactate Dehydrogenase And Sialic Acid In Thedifferentiation Of Nonmalignant Andmalignant Ascites, Hülya Aksoy, Ahmet Kiziltunç, Yilmaz Aksoy, Naciye Kurtul, Ebubekir Bakan

Turkish Journal of Medical Sciences

Ascites, being an accumulation of excess fluid within the peritoneal cavity, is most frequently encountered in patients with cirrhosis or certain other diseases such as congestive cardiac failure, peritoneal tuberculosis and some primary or secondary peritoneal tumours. This study included 17 patients (5 females, 12 males) with malignant ascites (MA) and 23 patients (13 females, 10 males) with nonmalignant ascites (NMA). We aimed to determinet the values for total sialic acid (SA), pH, cholesterol, fibronectin, total protein concentrations and lactate dehydrogenase (LDH) activity in ascitic fluid for the differential diagnosis of ascites. While total SA, fibronectin, cholesterol, LDH and total …

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Axillary Cystic Lymphangioma Presenting Inpregnancy, Fazıl Gelal, Kamil Yücel, Erdal Tuğsel, Şefik Güney Jan 1998

Axillary Cystic Lymphangioma Presenting Inpregnancy, Fazıl Gelal, Kamil Yücel, Erdal Tuğsel, Şefik Güney

Turkish Journal of Medical Sciences

No abstract provided.

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A Patient With Emaciation, Fever, Massivehepatosplenomegaly And Pancytopenia Jan 1998

A Patient With Emaciation, Fever, Massivehepatosplenomegaly And Pancytopenia

Turkish Journal of Medical Sciences

No abstract provided.

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A Method Of Identifying Hazardous Highway Locations Using The Principle Of Individual Lifetime Risk, Paul J. Ossenbruggen Jan 1998

A Method Of Identifying Hazardous Highway Locations Using The Principle Of Individual Lifetime Risk, Paul J. Ossenbruggen

RISK: Health, Safety & Environment (1990-2002)

Dr. Ossenbruggen presents a scientific framework for identifying hazardous highway locations that may be more easily understood by non-scientists and has potential for comparing highway with other risks to health.

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Virginia Dental Journal (Vol. 75, No. 4, 1998) Jan 1998

Virginia Dental Journal (Vol. 75, No. 4, 1998)

Virginia Dental Journal

No abstract provided.

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Virginia Dental Journal (Vol. 75, No. 2, 1998) Jan 1998

Virginia Dental Journal (Vol. 75, No. 2, 1998)

Virginia Dental Journal

No abstract provided.

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Virginia Dental Journal (Vol. 75, No. 3, 1998) Jan 1998

Virginia Dental Journal (Vol. 75, No. 3, 1998)

Virginia Dental Journal

No abstract provided.

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The Effects Of Various Level Of Ascorbic Acid On The Immunity Andegg Yield Of Laying Hens, Behiç Coşkun, Fatma İnal, Osman Erganis, Yahya Kuyucuoğlu, Ümran Ok, İlhami Çeli̇k, Ali Muhtar Ti̇fti̇k, Firuze Kurtoğlu Jan 1998

The Effects Of Various Level Of Ascorbic Acid On The Immunity Andegg Yield Of Laying Hens, Behiç Coşkun, Fatma İnal, Osman Erganis, Yahya Kuyucuoğlu, Ümran Ok, İlhami Çeli̇k, Ali Muhtar Ti̇fti̇k, Firuze Kurtoğlu

Turkish Journal of Veterinary & Animal Sciences

This research was carried out in two experiments. In first experiment, three different levels of vitamin C (0, 50 and 100 mg/kg feed) were added the diets based on corn, and the effects of the diets on egg yields, blood vitamin levels, T-lymphocyte percentage, plasma cell count in spleen and antibody titers against the vaccine of Newcastle disease were investigated for one year. Total of 648 laying hens were used in this experiment. The group fed the diet added 50 mg/kg vitamin C, produced less egg and fed more feed for one kg egg than other groups. There were no …

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The Ultra Structure Of Abnormal Objects In The Semen Of Two Bulls, Hasan Hakan Bozkurt Jan 1998

The Ultra Structure Of Abnormal Objects In The Semen Of Two Bulls, Hasan Hakan Bozkurt

Turkish Journal of Veterinary & Animal Sciences

In the semen of the two bulls, abnormal structures, which were not identified with phase-contrast and dark-field microscopy, were observed. These samples were fixed, embedded in the plastic blocks and sectioned for examining with T.E.M. It was understood that the objects in the first sample were abnormal spermatozoa which have both head and tail anomalies. The objects in the second sample were not abnormal spermatozoa. They were leukocytes which infiltrated into the semen.

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Effects On Enzyme Values And Histopathologic Findings With Vitamin E And/Orselenium On Monensin Toxicosis In Broiler Chickens, Ender Yarsan Jan 1998

Effects On Enzyme Values And Histopathologic Findings With Vitamin E And/Orselenium On Monensin Toxicosis In Broiler Chickens, Ender Yarsan

Turkish Journal of Veterinary & Animal Sciences

Monensin is an ionophore antibiotic, a monovalent cationic substance, used in veterinary practice principally as a coccidiostat in poultry and as a growth promoter in cattle. This study was designed to evaluate the pretreatment of selenium and/or vitamin E and vitamin E + selenium in broilers given normal and high doses of monensin. For this purpose, 172 broiler chicks (Ross PM-3) were used in the study. These were splitted into two groups up the 15 th day. In the 15 st group, 15 of these chicks were maintained and fed without monensin, selenium and vitamin E. Other chicks were fed …

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Effect Of Ivermectin (Baymec) On Natural Psoroptic And Sarcoptic Scab In Sheep, Edip Özer, Cem Ecmel Şaki̇, Murat Sevgi̇li̇ Jan 1998

Effect Of Ivermectin (Baymec) On Natural Psoroptic And Sarcoptic Scab In Sheep, Edip Özer, Cem Ecmel Şaki̇, Murat Sevgi̇li̇

Turkish Journal of Veterinary & Animal Sciences

This study was carried out in sheep with natural psoroptic scab in Kamışlı village of Kovancılar town in Elazığ province and in sheep with natural sarcoptic scab in Kovancılar town between April and May in 1996. According to the intensity of Psoroptes ovis and Sarcoptes ovis, two groups, control and treatment, each of which contained 15 sheep were formed in the flock with psoroptic scab whereas the flock with sarcoptic scab were divided into control and treatment groups containing 10 sheep each. Within the trial period, animals in the treatment group and the other animals in both flock received subcutaneous …

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The Case Of Dermatosparaxis In A Lamb, Kemal Yilmaz, İbrahim Çi̇mtay, Bülent Eli̇tok, Nursal Meti̇n, İhsan Yaman, Cem Ecmel Şaki̇ Jan 1998

The Case Of Dermatosparaxis In A Lamb, Kemal Yilmaz, İbrahim Çi̇mtay, Bülent Eli̇tok, Nursal Meti̇n, İhsan Yaman, Cem Ecmel Şaki̇

Turkish Journal of Veterinary & Animal Sciences

This observation was to report a case of dermatosparaxsis in an Akkaraman lamb. It was performed complete necropsy. And the lesions were described macroscopically and microscopically. In addition, it was included the affected and nonaffected flock to the research. After general clinical examinations; blood, wool and feaces samples were also analysed with regard to hematological (microhematocrit, hemoglobin), biochemical (zinc and copper values in plasma and hair) and parasitological examinations. The parameters of the affected and nonaffected flock were compared with each other. As the problem occured in a closed flock, it was enhanced the earlier hypothesis that genetic factors are …

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