Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Morphological abnormalities"”.
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Examining the impacts of pesticide exposure on the survivorship and development of the Great Basin Spadefoot (Spea intermontana) and the Pacific Treefrog (Pseudacris regilla) in a laboratory environment
… endpoints: acute mortality, behavioral abnormalities, morphological abnormalities and developmental abnormalities. Overall, endosulfan (LC20₈d = 77.1 ng/L) was the most toxic pesticide to both species in the tadpole stage, causing acute mortality, behavioral abnormalities and …
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Effects of Scrotal Insulation on Spermatozoal Morphology and Chromatin Stability to Acid Denaturation in the Bovine
… different species; however, it does not permit morphological evaluation of cells. In the present study, the SCSA was modified for the fluorescence/differential interference contrast (DIC) microscope to examine morphology and chromatin stability on the same cell. Semen from six Holstein bulls was …
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Studies Into the Significance of Distal Cytoplasmic Droplets in Porcine Semen
… with a mean of 25.6% DD and fewer than 20% other morphological abnormalities (DD), and one group with 3 x 109 total sperm containing three ejaculates with normal morphology exceeding 80% and one ejaculate with ≥15% DD and fewer than 20% other morphological abnormalities (COMP). Farrowing rates …
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Virulence of cryphonectria hypoviruses from previous release sites
… in the CHV3 genus, and lacking distinctive morphological abnormalities, were recovered near plots formerly used to release hypoviruses. This study tested the hypothesis that North American hypoviruses are evolving decreased virulence, and investigated hypovirus interactions affecting …
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Pericyte deficiencies in a foxf2 loss of function mutant
… the lifespan, but these pericytes also exhibit morphological abnormalities like increased soma size, process length and degeneration. These abnormalities manifest differently in adult brains, and blood vessel defects are evident. I show that embryonic pericyte defects are not the result of …
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The Effects of Amphetamine Exposure on Neurodevelopment and Behavior in Early Life Stages of Danio Rerio
… developmental delays. Amphetamine fish exhibited morphological abnormalities that included tail underdevelopment, lordosis, and significantly shorter body lengths. Underlying interneural deficits are further supported with fluorescent antibody staining in the spinal cord, where inhibitory …
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Determination of the effects of caffeine C1, 3. 7- trimethylxanthine in Tris-based egg yolk extender and different incubation intervals on the quality of cryopreserved bull semen
… viability, acrosome integrity, and sperm cell morphological abnormalities using standard microscopic techniques. Semen for this study was collected using an electro-ejaculator and analysed using a computer-aided sperm cell analyser. Data were analysed using a general linear model ANOVA in …
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Biological Functions of Iduronic Acid in Chondroitin/Dermatan Sulfate in Tumor and Brain Development
… which displayed no anatomical, histological or morphological abnormalities in brain. In summary, this thesis have identified new functions for IdoA in tumor development, which maybe of potential use in generation of novel therapeutics.
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Concurrent Infection of TRYPANOSOMA MUSCULI Kendell, 1906, and SCHISTOSOMA MANSONI Sambon, 1907 in Mice
… ruled out as no reduction in worm burden and no morphological abnormalities were observed. Both immune and normal rat serum caused an increase in the number of worms recovered. This is most probably due to a serum sickness type reaction in the mice, caused by the foreign rat protein. This is …
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Functional Investigation of Trypanosoma brucei Microtubule Associated Proteins and Their Role in Cellular Morphogenesis.
… However, in both cases protein depletion causes morphological abnormalities at the posterior end of cells. ganisation of subpellicular microtubules was interrogated through localisation of canonical plus tip binding proteins (+TIPs) EB1 and XMAP215. Microtubule plus ends are organised in a highly …
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Effects of elevated testicular temperature on viability of cryopreserved semen and morphological characteristics of ejaculated spermatozoa
… Viability (motility and acrosome integrity) and morphological characteristics of sperm before and after thermal insult were examined. For assessment of results, collection days were grouped: days -6, -3, 0 = Period 1 (d 0 = day of testis coverage after semen collection on that day), days 3, 6, 9 …
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Potentiating effects of caffeine on the teratogenicity of acetazolamide in two strains of mice
… Individual fetuses were examined for gross morphological abnormalities and skeletal variations.Findings1. A highly significant (P<.001) increase in fetal malformations, especially right forelimb ectrodactyly, was evident in C57BL/6J litters exposed on day 9 of gestation to both agents when …
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Effect of different disaccharides as energy supplements in tris-egg yolk semen extender on the quality of cryopreserved boer goat spermatozoa
… when compared to other sugars at 0 hours. More morphological defects M (CH) were revealed by maltose 0.12 at 0 hours. Sugar type (ST) and evaluation time (ET) showed no significant difference (P>0.05) in progressive motility (PM %), sperm kinetic motion, sperm viability and morphology. For …
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Pengaruh enzim kitinase kasar dari bakteri Pseudomonas pseudomallei dan Klebsiella ozaenae terhadap pertumbuhan, morfologi, dan kadar N-asetilglukosamin Fusarium oxysporum
… is equal to 12 mm on the 6th day of observation. Morphological abnormalities of the mycelium Fusarium oxysporum not seen any difference among the three treatment provision enzyme chitinase, which may shorten, bend, lysis, and destroyed. Highest levels of N- acetylglucosamine which treatment was …
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Behavior of deformed dermal fibroblasts seeded on a silicon membrane under high levels of strain
… to understand, from a molecular perspective, the morphological and functional abnormalities of human dermal fibroblasts as a response to deformation produced by a normal force that can lead to the potential formation of stretch marks in pregnant women, adolescents, and people with Cushing's …
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Exploring central and enteric nervous system vulnerability in Huntington’s Disease: hints from a knock-in animal model
… Then, preliminary studies seemed to suggest morphological abnormalities and elevated expression of pro-inflammatory markers such as S100b and IL-6 in HD enteric cultures. In vivo experiments revealed increased expression of specific Bdnf isoforms at presymptomatic stages, and elevated levels …
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Expression of atrial natriuretic factor in transgenic potatoes
… were obtained per 100 leaf explants inoculated. Morphological abnormalities were observed among some regenerants but most of these were transient. Seventy-seven kanamycin-resistant regenerants were analysed by Southern blotting of which 75% were found to contain detectable T-DNA sequences. …
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Large-scale Functional Connectivity in the Human Brain Reveals Fundamental Mechanisms of Cognitive, Sensory and Emotion Processing in Health and Psychiatric Disorders
… latter study with an investigation of structural morphological abnormalities in social anxiety disorder (Chapter 8, (Talati et al., 2013)). Each of these chapters has been or is about to be published in peer reviewed journals and this thesis provides an overview of the entire body of …
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A study of acetylcholinesterase and cholinesterase in the fetal mouse brain and a study of the effects of three teratogens, vitamin A, cyclophosphamide and sodium valproate on the fetal mouse central nervous system
… in C3H mice including embryolethality, gross morphological abnormalities, fetal weight, brain weight, brain acetylcholinesterase and its isoenzymes, and in some instances brain total protein content and choline acetyltransferase activity, were assessed. Preliminary studies were also performed …