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Articles 36511 - 36540 of 42108

Full-Text Articles in Medicine and Health Sciences

Activation Of Central Melanocortin Pathways By Fenfluramlne, Lora K. Heisler, Michael A. Cowley, Laurence H. Tecott, Wei Fan, Malcolm J. Low, James L. Smart, Marcelo Rubinstein, Jeffrey B. Tatro, Jacob N. Marcus, Henne Holstege, Charlotte E. Lee, Roger D. Cone, Joel K. Elmquist Jan 2002

Activation Of Central Melanocortin Pathways By Fenfluramlne, Lora K. Heisler, Michael A. Cowley, Laurence H. Tecott, Wei Fan, Malcolm J. Low, James L. Smart, Marcelo Rubinstein, Jeffrey B. Tatro, Jacob N. Marcus, Henne Holstege, Charlotte E. Lee, Roger D. Cone, Joel K. Elmquist

Faculty Publications - Department of Biological & Molecular Science

D-fenfluramine (d-FEN) was once widely prescribed and was among the most effective weight loss drugs, but was withdrawn from clinical use because of reports of cardiac complications in a subset of patients. Discerning the neurobiology underlying the anorexic action of d-FEN may facilitate the development of new drugs to prevent and treat obesity. Through a combination of functional neuroanatomy, feeding, and electrophysiology studies in rodents, we show that d-FEN-induced anorexia requires activation of central nervous system melanocortin pathways. These results provide a mechanistic explanation of d-FEN's anorexic actions and indicate that drugs targeting these downstream melanocortin pathways may prove to …

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Vo2 Reserve And The Minimal Intensity For Improving Cardiorespiratory Fitness, David P. Swain, Barry A. Franklin Jan 2002

Vo2 Reserve And The Minimal Intensity For Improving Cardiorespiratory Fitness, David P. Swain, Barry A. Franklin

Human Movement Studies & Special Education Faculty Publications

Purpose: The American College of Sports Medicine has stated that aerobic: training needs to occur at a minimum threshold intensity of 50% VO2max for most healthy adults and at 40% VO2max for those with a very low initial fitness. Recently, the concept of VO2 reserve (% VO2R, i.e., a percentage of the difference between maximum and resting VO2 has been introduced for prescribing exercise intensity, This analysis was designed to determine the threshold intensity for improving cardiorespiratory fitness expressed as %VO2R units. Methods: Previous studies in healthy subjects (N = 18) that …

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Il-12 Plasmid Delivery By In Vivo Electroporation For The Successful Treatment Of Established Subcutaneous B16.F10 Melanoma, M. Lee Lucus, Loree Heller, Domenico Coppola, Richard Heller Jan 2002

Il-12 Plasmid Delivery By In Vivo Electroporation For The Successful Treatment Of Established Subcutaneous B16.F10 Melanoma, M. Lee Lucus, Loree Heller, Domenico Coppola, Richard Heller

Bioelectrics Publications

Interleukin-12 (IL-12) has been used in numerous immunotherapy protocols against melanoma. However, delivery of IL-12 in the form of recombinant protein can result in severe toxicity, and gene therapy has had limited success against B16.F10 murine melanoma. The purpose of this study was to examine the effectiveness of in vivo electroporation for the delivery of plasmid DNA encoding IL-12 as an antitumor agent against B16.F10 melanoma. We treated mice bearing established B16.F10 melanoma tumors with intratumoral (i.t.) or intramuscular (i.m.) injections of a plasmid encoding IL-12, followed by in vivo electroporation. For i.t. treatments, we used an applicator containing six …

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Improved Energy Model For Membrane Electroporation In Biological Cells Subjected To Electrical Pulses, R. P. Joshi, Q. Hu, K. H. Schoenbach, H. P. Hjalmarson Jan 2002

Improved Energy Model For Membrane Electroporation In Biological Cells Subjected To Electrical Pulses, R. P. Joshi, Q. Hu, K. H. Schoenbach, H. P. Hjalmarson

Bioelectrics Publications

A self-consistent model analysis of electroporation in biological cells has been carried out based on an improved energy model. The simple energy model used in the literature is somewhat incorrect and unphysical for a variety of reasons. Our model for the pore formation energy E(r) includes a dependence on pore population and density. It also allows for variable surface tension, incorporates the effects of finite conductivity on the electrostatic correction term, and is dynamic in nature. Self-consistent calculations, based on a coupled scheme involving the Smoluchowski equation and the improved energy model, are presented. It is shown that E(r) becomes …

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Mechanisms Counteracting Swelling In Brain Cells During Hyponatremia, Herminia Pasantes-Morales, Rodrigo Franco, Benito Ordaz, Lenin D. Ochoa Jan 2002

Mechanisms Counteracting Swelling In Brain Cells During Hyponatremia, Herminia Pasantes-Morales, Rodrigo Franco, Benito Ordaz, Lenin D. Ochoa

School of Veterinary and Biomedical Sciences: Faculty Publications

Water gain in the brain consequent to hyponatremia is counteracted by mechanisms that initially include a compensatory displacement of liquid from the interstitial space to cerebrospinal fluid and systemic circulation and subsequently an active reduction in cell water accomplished by extrusion of intracellular osmolytes to reach osmotic equilibrium. Potassium (K+), chloride (Cl–), amino acids, polyalcohols, and methylamines all contribute to volume regulation, with a major contribution of ions at the early phase and of organic osmolytes at the late phase of the regulatory process. Experimental models in vitro show that osmolyte fluxes occur via leak pathways …

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Positive And Negative Roles Of Cd72 In B Cell Function., Hsin-Jung Wu, Subbarao Bondada Jan 2002

Positive And Negative Roles Of Cd72 In B Cell Function., Hsin-Jung Wu, Subbarao Bondada

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Regulation of B cell activation depends on integration of signals transmitted by the B cell receptor (BCR) and a variety of co-receptors. CD72 is a B cell co-receptor that is expressed in all stages of B cell development except plasma cells. Ligation of CD72 enhances B cell growth and differentiation. Recently, the class IV semaphoring, CD100, has been identified as the natural ligand for CD72. Cytoplasmic domain of CD72 has been shown to be associated with SHP-1 leading to the proposal that the positive effects of CD72 on B cell response may result from sequestration of negative signals from BCR. …

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Determination Of The Microbiological Quality Of Some Dairy Desserts, Mustafa Ali̇şarli, Yakup Can Sancak, Levent Akkaya, Ci̇hangi̇r Eli̇bol Jan 2002

Determination Of The Microbiological Quality Of Some Dairy Desserts, Mustafa Ali̇şarli, Yakup Can Sancak, Levent Akkaya, Ci̇hangi̇r Eli̇bol

Turkish Journal of Veterinary & Animal Sciences

This study was designed to demonstrate the microbiological qualities of cream pastries and puddings obtained from five different confectioneries in Van. A total of 175 samples, consisting of 100 pudding samples (sütlaç 25, keşkül 30, supangile 25, kazandibi 20) and 75 cream pastries (butter-cream 25, chocolate-cream 25, fruit-cream 25), were analysed. The drop plate technique was used to determine the numbers of total anaerobic bacteria, enterobactericeae, lactobacilli, pseudomonas and yeasts/moulds, and the spread plate technique was used to determine the total number of micrococci/staphylococci. The mean numbers of total aerobic bacteria were found to be 2.16, 3.18, 4.65, 2.75, 6.08, …

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Egg Production And Some Hatchability Characteristics Of Rock Partridges (Alectoris Graeca) Mated At Different Rates, Orhan Çeti̇n Jan 2002

Egg Production And Some Hatchability Characteristics Of Rock Partridges (Alectoris Graeca) Mated At Different Rates, Orhan Çeti̇n

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to determine the hatchability characteristics of rock partridges mated at the ratio of one male to three females, one male to four females and one male to five females. Egg production/hen (%), fertile eggs/hen, fertility, hatchability and hatchability of fertile eggs of one male to three females, one male to four females and one male to five females groups were determined to be 40.53, 48.79 and 44.85%; 38.94, 42.16 and 38.30%; 88.37, 81.73 and 81.95%; 69.70, 65.47 and 66.50% and 78.97, 79.78 and 81.16%, respectively. There were significant differences between total egg production/hen and the …

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Growth Performance, Body Traits And Fillet Composition Of The European Sea Bass (Dicentrarchus Labrax) Reared In Various Salinities And Fresh Water, O. Tufan Eroldoğan, Meti̇n Kumlu Jan 2002

Growth Performance, Body Traits And Fillet Composition Of The European Sea Bass (Dicentrarchus Labrax) Reared In Various Salinities And Fresh Water, O. Tufan Eroldoğan, Meti̇n Kumlu

Turkish Journal of Veterinary & Animal Sciences

The effects of various salinities and fresh water (FW) (0.4 ppt) on the growth performance, body traits and fillet composition of juvenile and young sea bass (Dicentrarchus labrax) in FW were investigated in two separate experiments in this study. In Experiment 1, following acclimation, sea bass juveniles (9.5 ± 0.5 g) were reared in 240-L fibreglass tanks (40 x 40 x 150 cm) for 90 days in five different treatments (FW, 10, 20, 30 and 40 ppt). The fish cultured in FW, 10 and 20 ppt grew better than those at 30 or 40 ppt (P < 0.05). Salinity did not affect the crude protein, lipid or ash content of the fish (P > 0.05). Yet, the dry …

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Determination Of Some Physical And Chemical Characteristics Of Sucuk Produced At Some Major Meat Plants In The Province Of Afyon, Mebrure Doğu, Ahmet Hi̇lmi̇ Çon, Hüsnü Yusuf Gökalp Jan 2002

Determination Of Some Physical And Chemical Characteristics Of Sucuk Produced At Some Major Meat Plants In The Province Of Afyon, Mebrure Doğu, Ahmet Hi̇lmi̇ Çon, Hüsnü Yusuf Gökalp

Turkish Journal of Veterinary & Animal Sciences

In this research 30 sucuk samples were obtained from 5 meat plants with high capacity, during 3 months (January 1998-March 1998) at 15 day intervals. At the results of determination of the 30 sucuk samples, 80% of them was not shown acceptable colour development and 93.33% had a soft texture. 83.33% of the samples cut from the surface was not indicated good colour development and 50% of them has not good marble form. The taste and aroma of 53.33% was good, 36.67% was normal. And 10% was unwanted taste and aroma. At the result of chemical analysis, pH range of …

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Serological Survey Of Bovine Leptospirosis In Kars And Ardahan Provinces, Mi̇that Şahi̇n, Fuat Aydin, Vi̇ldan Özdemi̇r, Oktay Genç, M. Ali̇ Güler Jan 2002

Serological Survey Of Bovine Leptospirosis In Kars And Ardahan Provinces, Mi̇that Şahi̇n, Fuat Aydin, Vi̇ldan Özdemi̇r, Oktay Genç, M. Ali̇ Güler

Turkish Journal of Veterinary & Animal Sciences

In this study, leptospiral antibodies were investigated by Microscopic Agglutination Test (MAT) and Enzyme Linked Immunosorbent Assay (ELISA) in order to detect leptospirosis and serotypes which cause leptospira infection in cattle raised in Kars and Ardahan. Live and sonicated antigens prepared from Leptospira hardjo and Leptospira grippotyphosa serotypes were used. Blood samples were taken from 150 cattle under 2 years of age and 840 cattle 2 years of age or older (a total of 990) which were unvaccinated against leptospirosis in 30 rural settlements. Seropositivity against L. hardjo and L. gripotyphosa was detected in 333 (33.63%) and 359 (36.26%) blood …

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The Incidence And Pathology Of Reproductive Organ Tumors In Chickens, Gürsel Sönmez, M. Özgür Özyi̇ği̇t, M. Müfi̇t Kahraman Jan 2002

The Incidence And Pathology Of Reproductive Organ Tumors In Chickens, Gürsel Sönmez, M. Özgür Özyi̇ği̇t, M. Müfi̇t Kahraman

Turkish Journal of Veterinary & Animal Sciences

This study was performed to determine the incidence and anatomo-pathologic aspects of reproductive organ tumors in laying chickens. For this research, 10,475 16-18-month-old, commercial laying hens of the Babcock genotype were obtained from four flocks in Afyon city. They were examined right after slaughtering, and reproductive organ tumors in 804 hens (7.67%) were observed. Out of these 804 hens, leiomyoma was found in 760 hens (7.25%), oviduct adenocarcinoma in 39 hens (0.37%) and leiomyoma together with oviduct adenocarcinoma in 5 hens (0.05%) were detected. Oviduct adenocarcinomas were observed in the magnum of the oviduct in 43 cases (0.41%) and in …

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Selection By Cluster Analysis, İsmet Doğan Jan 2002

Selection By Cluster Analysis, İsmet Doğan

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to show that cluster analysis, which has been used in different disciplines, can be used in animal breeding studies. This study included 535 Arabian colts and 392 Arabian fillies (total: 927) that were offered for sale between 1980 and 1998, bred at Çifteler State Farm. As a cluster method, the k-means method was used. In terms of determination of clusters, the data used were age, height at withers, heart girth and cannon bone circumference. This information was obtained from the marketing catalogue. The clusters were obtained for each sex separately. Colts were divided into …

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Effects Of Zinc Oxide Administrations On Body Weight Gain And Some Biochemical Parameters In Lambs, Gürbüz Aksoy, Teki̇n Şahi̇n, İbrahi̇m Çi̇mtay, Neval Berri̇n Arseri̇m Kaya Jan 2002

Effects Of Zinc Oxide Administrations On Body Weight Gain And Some Biochemical Parameters In Lambs, Gürbüz Aksoy, Teki̇n Şahi̇n, İbrahi̇m Çi̇mtay, Neval Berri̇n Arseri̇m Kaya

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine the effects of zinc oxide administrations on body weight gain and some biochemical parameters (zinc, copper, iron, calcium, magnesium, total protein and gammaglobulin) in the blood serum of lambs. This study was performed on 35 Ivesi male lambs (control group: 15, experimental group: 20), aged between 20 and 25 days. In the experimental group, 500 mg zinc oxide (2% solution) was administered orally 12 times with period of a week. Blood samples were collected on days of 0, 14, 28, 42 and 84. Furthermore, body weights of the lambs were determined on …

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The Determination Of Gonadosomatic Index And Flesh Productivity Of Scorpion Fish (Scorpaena Porcus Linne., 1758), Habi̇l Uğur Koca Jan 2002

The Determination Of Gonadosomatic Index And Flesh Productivity Of Scorpion Fish (Scorpaena Porcus Linne., 1758), Habi̇l Uğur Koca

Turkish Journal of Veterinary & Animal Sciences

In this study, the gonadosomatic index value and flesh productivity of Scorpion Fish (Scorpaena porcus Linne., 1758) were investigated for fish caught in the Sinop region using bottom nets. With this purpose, the gonadosomatic index value of a total of 633 samples were examined. The gonadosomatic index was found to have a maximum value in June and a minimum value in September. The flesh productivity of females was determined to be 34.24 ± 0.014 and 34.47 ± 0.015 for males and 34.35 ± 0.007 as a mean. The results obtained suggest that fishing of this species, which is exposed to …

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The Effects Of Different Roughage Sources On Growth Performance And Carcass Properties In Native Geese, Cavi̇t Arslan, Fatma İnal Jan 2002

The Effects Of Different Roughage Sources On Growth Performance And Carcass Properties In Native Geese, Cavi̇t Arslan, Fatma İnal

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to determine the effects of different roughage sources (alfalfa meal, grass meal and sugar beet pulp) on growth performance and carcass properties in geese. During the research, 51 one-day-old native geese chicks were used. Chicks were fed jointly for the first two weeks. At the beginning of the third week, the geese were divided into three groups. During weeks 3-10 different roughage (alfalfa meal, grass meal and sugar beet pulp) and concentrates were offered in separate feeders. During the third week concentrate was offered a 100 g/day/bird and increased 50 g a week until the …

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Seasonal Variation And Meat Composition Of Blue Crab (Callinectes Sapidus, Rathbun, 1896) Caught In İskenderun Bay, North-East Mediterranean, Canan Türeli̇, Ünal Erdem, Mehmet Çeli̇k Jan 2002

Seasonal Variation And Meat Composition Of Blue Crab (Callinectes Sapidus, Rathbun, 1896) Caught In İskenderun Bay, North-East Mediterranean, Canan Türeli̇, Ünal Erdem, Mehmet Çeli̇k

Turkish Journal of Veterinary & Animal Sciences

The seasonal variation and meat composition of blue crabs (Callinectes sapidus Rathbun, 1896) were investigated. Twenty (10 male, 10 female) crabs were used each season. The total weight of the samples was estimated and the ratios of crude protein, lipid, dry matter and crude ash were obtained from meat of the body and claws. Comparatively higher values of dry matter, crude ash and lipid were determined for the claw meat of males in winter. In the same season the crude protein and lipid composition of claws and crude ash of body meat were higher in females than other meat. The …

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Evaluation Of The Periventricular Lesions Associated With Congenital Hydrocephalus In Puppies, Osman Kutsal, Rifki Haziroğlu, Tolga Güvenç, Recai̇ Tunca Jan 2002

Evaluation Of The Periventricular Lesions Associated With Congenital Hydrocephalus In Puppies, Osman Kutsal, Rifki Haziroğlu, Tolga Güvenç, Recai̇ Tunca

Turkish Journal of Veterinary & Animal Sciences

Hydrocephalus associated lesions such as diverticula, clefts and tears observed in periventricular white matter were studied pathologically in three puppies with necropsy between 1993 and 1994. Enlargement of the cranial vault was present in the puppies. The animals were blind, and their morphological alterations were similar. Marked hydrocephalus caused by mesencephalic canal malformations and obstruction was detected in all cases. Compression atrophy was seen in the nucleus caudatus, hippocampus, putamen and cerebellum in all animals. Cerebral sulci malformations were also detected in the cranial parts of the brain. Ependymal lesions consisting of attenuation, regeneration, calcification and desquamation were also observed. …

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The Ichthyoplankton Of İzmir Bay: A One-Year Study Of Fish Eggs And Larvae, Belgi̇n Hoşsucu, Yeşi̇m Ak Jan 2002

The Ichthyoplankton Of İzmir Bay: A One-Year Study Of Fish Eggs And Larvae, Belgi̇n Hoşsucu, Yeşi̇m Ak

Turkish Journal of Veterinary & Animal Sciences

This study was carried out in order to determine the species diversity, abundance, and distribution and seasonal frequency occurrence times of the eggs and larvae of Teleost fish in Izmir Bay during 1989-1990. A total of 32140 eggs and 6582 larvae were collected from plankton samples and 69 species belonging to 27 families were identified. The most abundant families included Sparidae 23.79%, Clupeidae 24.63%, Mullidae 12.22%, Serranidae 8.72% and Mugilidae 8.04% of total eggs, and Gobiidae 67.38%, Sparidae 9.43% and Blennidae 9.31% of total larvae. In this study, with regard to eggs, because some species preferred to release their eggs …

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Comparative Study Of Butorphanol-Ketamin Hcl And Xylazine-Ketamin Hcl Combinations For Their Clinical And Cardiovascular/Respiratory Effects In Healthy Dogs, İbrahi̇m Demi̇rkan, Gülteki̇n Atalan, Hali̇l İbrahi̇m Gökce, İsa Özaydin, Fi̇kret Çelebi̇ Jan 2002

Comparative Study Of Butorphanol-Ketamin Hcl And Xylazine-Ketamin Hcl Combinations For Their Clinical And Cardiovascular/Respiratory Effects In Healthy Dogs, İbrahi̇m Demi̇rkan, Gülteki̇n Atalan, Hali̇l İbrahi̇m Gökce, İsa Özaydin, Fi̇kret Çelebi̇

Turkish Journal of Veterinary & Animal Sciences

The cardiovascular/respiratory and clinical effects of a xylazine-ketamine combination or a butorphanol-ketamine combination for the induction of anaesthesia in dogs were compared. A total of 12 dogs (two groups 6 dogs each) were premedicated with either xylazine (group I) or butorphanol (group II) and anaesthetized with ketamine HCl and monitored at 0, 5, 15, 30 and 60 min after induction. Sedative effects in both groups started within 15 min. Respiratory rate was significantly decreased in group I (P < 0.05). Body temperature was significantly altered after 15 min in group I (P < 0.05 and P < 0.001). Haematological analyses indicated that there were no differences in pH values between the groups. It was concluded that butorphanol followed by ketamine was comparable with xylazine plus ketamine for the induction of anaesthesia in healthy dogs.

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Analysis Of The Crude Antigen Of Hymenolepis Nana From Mice By Sds-Page And The Determination Of Specific Antigens In Protein Structure By Western Blotting, Bahadir Gönenç Jan 2002

Analysis Of The Crude Antigen Of Hymenolepis Nana From Mice By Sds-Page And The Determination Of Specific Antigens In Protein Structure By Western Blotting, Bahadir Gönenç

Turkish Journal of Veterinary & Animal Sciences

Protein bands of crude antigens of Hymenolepis nana were determined by SDS-PAGE and Western blotting. Thirty Swiss albino mice were allotted into two groups of 15 each as positive (infected with H. nana) and negative (non-infected with H. nana) groups. The natural infections of H. nana and other helminths were determined by centrifugal flotation of faeces. After bleeding, the mice were necropsied and their guts were examined for H. nana and other intestinal helminths. Sera from mice were tested by Western blotting and the bands obtained from positive and negative groups were compared. The specific protein band for H. nana …

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Morphological Defects In Turkey Semen, Serhat Alkan, Alper Baran, Ö. Banu Özdaş, Mi̇that Evecen Jan 2002

Morphological Defects In Turkey Semen, Serhat Alkan, Alper Baran, Ö. Banu Özdaş, Mi̇that Evecen

Turkish Journal of Veterinary & Animal Sciences

The goal of this study was to evaluate the abnormal spermatozoa rates and types of American Bronze turkeys under Turkish conditions. Semen was collected from toms by abdominal massage and pooled once a week for 10 weeks. After pooling, the semen samples were examined morphologically and mean abnormal rates and types were evaluated. A total abnormal spermatozoa rate of 17 ± 0.06% was determined. Acrosome and mid-piece defects were the leading defects at 66 ± 0.36%. Tail defects of 22 ± 0.18% and head defects of 11 ± 0.11% were the next most prevalent. In conclusion, we observed that the …

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Application Of Western Blotting For The Immunodiagnosis Of Fasciola Hepatica In Cattle Using Excretory/Secretory Antigens, H. Oğuz Sarimehmetoğlu Jan 2002

Application Of Western Blotting For The Immunodiagnosis Of Fasciola Hepatica In Cattle Using Excretory/Secretory Antigens, H. Oğuz Sarimehmetoğlu

Turkish Journal of Veterinary & Animal Sciences

In this study, protein bands of excretory/secretory antigens of Fasciola hepatica were determined using SDS-PAGE and Western blotting. Blood and faecal samples were obtained from cattle brought to Kazan slaughterhouse. After examining the organs and faecal samples of these cattle for Fasciola hepatica and other helminths, serum samples were divided into two groups as positive (10 cattle) and negative (5 cattle) for F. hepatica. The sera of these two groups were tested using Western blotting. The bands obtained from the sera of positive and negative groups were compared and the specific protein bands for F. hepatica infection were 36, 29 …

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Morphological Adaptation Of Rat Skeletal Muscle To A Cold Environment, Fati̇me Geyi̇koğlu, Aysel Temelli̇, Abdullah Özkaral Jan 2002

Morphological Adaptation Of Rat Skeletal Muscle To A Cold Environment, Fati̇me Geyi̇koğlu, Aysel Temelli̇, Abdullah Özkaral

Turkish Journal of Veterinary & Animal Sciences

Male Sprague-Dawley rats (SD) were kept in medium between the postnatal 80^{th} and 130^{th} day while environmental temperature (from 20 to 5 ºC) and photoperiod were decreased gradually. The weight of the animals adapted to the cold and the weight and length of the external digitorum longus (EDL) muscle were measured. When compared with controls, in a cold environment the weight and fiber length of the muscle was reduced significantly. In addition, EDL muscle was separated into two (red and white) by using the succinic dehydrogenase (SDH) method and the percentage of fiber types and fiber diameters according to mitochondria …

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Comparative Study On The Effects Of Wire, Polydioxanone, And Mini Titanium Plate Osteosynthesis Materials On The Healing Of Mandibular Fractures: An Experimental Study In Rabbits, Hasan Bi̇lgi̇li̇, Si̇bel Orhun Jan 2002

Comparative Study On The Effects Of Wire, Polydioxanone, And Mini Titanium Plate Osteosynthesis Materials On The Healing Of Mandibular Fractures: An Experimental Study In Rabbits, Hasan Bi̇lgi̇li̇, Si̇bel Orhun

Turkish Journal of Veterinary & Animal Sciences

In this study, corpus mandibula fractures were experimentally induced on 30 rabbits and 3 different materials were used for fixation. Thirty rabbits were arranged into 3 groups and then wire, polydioxanone and mini plate and screw osteosynthesis materials were used. The fracture healing was examined and compared with clinical, radiological and histological results. From the radiological results the parameters of groups were compared with Lane and Sandhu scale system in terms of callus tissue, mineralization and remodeling. The histological results were evaluated according to the Modified Heiple scoring and compared for histological fracture healing and callus tissue. At the end …

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Comparison Of Three Different Traps For Catching Blue Crab (Callinectes Sapidus Rathbun 1896) In Beymelek Lagoon, Hasan Hüseyi̇n Atar, Murtaza Ölmez, Süleyman Bekcan, Selçuk Seçer Jan 2002

Comparison Of Three Different Traps For Catching Blue Crab (Callinectes Sapidus Rathbun 1896) In Beymelek Lagoon, Hasan Hüseyi̇n Atar, Murtaza Ölmez, Süleyman Bekcan, Selçuk Seçer

Turkish Journal of Veterinary & Animal Sciences

In this study, the capture efficiencies and catch rates of three different traps were compared for the blue crab Callinectes sapidus in Beymelek Lagoon, Antalya, Turkey. All gear was used simultaneously and in the same habitats. The mean catch per unit effort (CPUE) was determined to be significantly higher for hoop nets than for traps. Gear effectiveness was examined by comparing CPUE (CPUE as number of crab per trap per haul, and g per trap haul), mean weight of individual crabs, catch composition and width frequency distributions of the blue crab for each gear.

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Characterisation Of An Exopolysaccharide Preventing Phage Adsorption In Lactococcus Lactis Subsp. Cremoris Ma39, Mustafa Akçeli̇k, Pinar Şanlibaba Jan 2002

Characterisation Of An Exopolysaccharide Preventing Phage Adsorption In Lactococcus Lactis Subsp. Cremoris Ma39, Mustafa Akçeli̇k, Pinar Şanlibaba

Turkish Journal of Veterinary & Animal Sciences

Lactococcus lactis subsp. cremoris strain MA39 produces an extracellular polysaccharide containing rhamnose, glucose and galactose. A 16.5 kb plasmid encoding exopolysaccharide production in MA39 was determined by plasmid curing experiments. Phage adsorption assays showed that four different lactococcal phages were adsorbed to MA39-40; only the 16.5 kb plasmid cured an exopolysaccharide non-producing mutant of strain MA39, with high efficiency (93.2-98.5%) while adsorption of these phages was completely inhibited in the wild type strain MA39. These results suggest that exopolysaccharide prevents phage adsorption by masking phage receptor sites.

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Thymic Nurse Cells Determined In Situ At The Light And Electron Microscopic Level, F. Fi̇gen Kaymaz, Atti̇la Dağdevi̇ren Jan 2002

Thymic Nurse Cells Determined In Situ At The Light And Electron Microscopic Level, F. Fi̇gen Kaymaz, Atti̇la Dağdevi̇ren

Turkish Journal of Veterinary & Animal Sciences

Thymic nurse cells are isolated thymic epithelial/thymocyte complexes described in vitro. Their in vivo existence is controversial. We examined rat thymi in order to distinguish thymic nurse cells in vivo using the zinc iodide-osmium tetroxide (ZIO) fixation/staining technique. There were mainly two types of strongly ZIO reactive cells in the thymic cortex: macrophages and small clusters of thymic epithelial cells. The latter group was composed of thymic epithelial cells and intact thymocytes forming complexes. Thus we suggest that these structures are in situ equivalents of thymic nurse cells.

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Understanding The Infectious Agent In Nvcjd: Role Of Copper, Edi̇z Demi̇rpençe, Fi̇li̇z Akbiyik Jan 2002

Understanding The Infectious Agent In Nvcjd: Role Of Copper, Edi̇z Demi̇rpençe, Fi̇li̇z Akbiyik

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

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Renal Oxalosis In A Calf, M. Yavuz Gülbahar, Abdullah Kaya, İsmai̇l Gölen Jan 2002

Renal Oxalosis In A Calf, M. Yavuz Gülbahar, Abdullah Kaya, İsmai̇l Gölen

Turkish Journal of Veterinary & Animal Sciences

A case of neonatal renal oxalosis in a 7-day-old calf is described. Clinical biochemistry revealed increased blood urea nitrogen. Gross findings included thin renal medulla and dilated renal calyces containing numerous, small, pale yellow and granular calculi. Histologically, most cortical and medullary tubules were dilated with birefringent crystals, whereas the glomeruli appeared unaffected. The crystals were morphologically consistent with calcium oxalate by the Pizzolato technique. Diffuse interstitial fibrosis and focal accumulations of lymphocytes were also noted.

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