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A collection of papers (D.Sc.1971) from the Dept. of Zoology, Univof Adelaide / 1v. various pagings / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (D.Sc.)--University of Adelaide, 1971

Inaug.-diss.-Bern. / Literatur: p. 27.

Thesis (M.S.)--Bowling Green State University, 2006. / Document formatted into pages; contains ix, 154 p. : ill. Includes bibliographical references.

Resumo: Neste trabalho foram analisados histológica e morfometricamente testículos de 30 gatos distribuídos em três grupos (G) com idades reprodutivas diferentes, G1 (um a dois anos), G2 (maiores de dois a quatro anos) e G3 (maiores de quatro a seis anos), sem raça definida, e desprovidos de doenças reprodutivas. Após a orquiectomia, a gônada direita foi lavada em água corrente e fixada em solução Bouin durante 24 horas e processada rotineiramente para a inclusão em parafina. Foram realizados cortes semiseriados de 120 micrômetros (μm) com espessura de cinco micrômetros, corados pela Hematoxilina Eosina e fotomicrografados no aparelho Olympus Bx 50 CCD®. Os parâmetros morfométricos estudados a partir do sistema analisador de imagens (Image Pro-plus) foram as espessuras da camada albugínea (72 μm) e do epitélio seminífero (77,19 μm), perímetro (53,81; 90,57 μm) e (54,80; 101,07 μm), área (174,23; 494,55 μm2) e (176,68; 629,70 μm2), diâmetros máximo (14,94; 28,02 μm) e (14,76; 31,66 μm) e mínimo (13,25; 21,92 μm) e (13,30; 24,52 μm) e fator de forma (1,36; 1,36) e (1,39; 1,35) do núcleo e citoplasma das espermatogônias e células de Leydig respectivamente. O procedimento estatístico utilizado foi a ANOVA. Estes resultados podem ser utilizados em estudos comparativos com outros felinos, e contribuir com profissionais da área em relação a altura do epitélio seminífero e espessura da túnica albugínea e tamanho das espermatogônias e células de Leydig / Abstract: It was carried out in this research histological and morphometric analyses of testes of 30 mixed breed cats distributed in three groups (G) according to their ages, G1 (1 to 2 years), G2 (> 2 to 4 years) and G3 (> 4 to 6 years) , without reproductive diseases. After the performance of the orchiectomy, the right testis of each animal was washed under running water for removal of blood excess, fixed in Bouin solution for 24 hours, submitted to routine histological processing. The blocks of all samples were cut into 5-μm thick sections and the testes were cut into five 120-μm semi-serial sections. The specimens were mounted on glass slides, stained with hematoxylin-eosin technique and the histological sections were examined and photographed under an Olympus BX50 photomicroscope. The following morphometric parameters were analyzed: thickness of the tunica albuginea (72 μm) and seminiferous epithelium (77,19 μm) of the seminiferous tubules. Nucleus and cytoplasm of type A spermatogonia and Leydig cells were also studied: perimeter (53,81; 90,57 μm) and (54,80; 101,07 μm), area (174,23; 494,55 μm2) and (176,68; 629,70 μm2), maximum diameter (14,94; 28,02 μm) and (14,76; 31,66 μm), minimum diameter (13,25; 21,92 μm) and (13,30; 24,52 μm) and roundness factor (1,36; 1,36) and (1,39; 1,35) respectively. All analyses were performed using ANOVA. These parameters could be used in comparative studies with another feline species, to improve information about the thickness of the seminiferous epithelium, tunica propria, spermatogonia and Leydig cells to help feline reproduction professionals / Orientador: Wilter Ricardo Russiano Vicente / Coorientador: Maria Rita Pacheco / Banca: Ana Paula Coelho Ribeiro / Banca: Frederico Ozanam Barros Monteiro / Banca: Paulo Henrique Franceschini / Banca: Marion Burkhardt de Koivisto / Doutor

Made available in DSpace on 2014-06-11T19:31:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2003Bitstream added on 2014-06-13T20:41:38Z : No. of bitstreams: 1 conceicao_m_dr_botfmvz.pdf: 3014470 bytes, checksum: 49d4919a2393deb79a1f34cf6e565343 (MD5) / A pele exerce várias funções importantes, por isto várias conseqüências deletérias podem advir devido à sua imaturidade ou perda da sua integridade. O objetivo deste trabalho foi o de avaliar a evolução da pele dos cães recém-nascidos em relação à sua morfologia e celularidade desde o nascimento até 70 dias de idade, em 28 filhotes. As amostras de pele foram colhidas da região dorsal nos um, 20, 40 e 60 dias de vida, e da região ventral nos 10, 30, 50, e 70 dias de vida. As amostras obtidas por meio de biópsia da pele dos filhotes foram processadas e coradas pela hematoxilina-eosina, ácido periódico de Schiff, calleja sem permanganato de potássio, tricrômico de Masson e vermelho do congo-azul de toluidina acidificada. Comparando-se os resultados obtidos com os dados da literatura do cão adulto pôde-se verificar que os neonatos possuem os mesmos componentes da pele dos adultos. A espessura da membrana basal é linear tanto em machos quanto em fêmeas. Em relação ao sexo, houve diferença significativa da espessura das fibras colágenas da derme superficial e derme profunda, fibras elásticas e reticulares do dorso direito entre os machos e fêmeas de um, 20, 40 e 60 dias de vida. Nos filhotes machos as fibras tiveram espessamento linear. No que diz respeito à idade também houve diferença estatística da espessura das fibras colágenas da derme superficial e profunda e fibras elásticas. Nos filhotes machos há tendência de espessamento destas fibras com o amadurecimento dos animais. O local anatômico da colheita, dorso direito e ventre direito dos animais de 60 dias de idade, teve influência na espessura das fibras elásticas. As fibras do dorso direito dos filhotes machos são mais espessas do que as do ventre direito dos filhotes fêmeas. / The skin exerts several important functions; therefore many deleterious consequences may occur due to its immaturity or loss of integrity. The scope of this study was to evaluate the evolution of skin from newborn dogs in its morphology and cellular content from birth until 70 days of age on 28 puppies. The skin samples were collected from the dorsal area at one, 20, 40 and 60 days of life; and from the ventral area at 10, 30, 50, 70 days of life. The samples were obtained through skin biopsy and stained by hematoxylineosin, Schiff periodic acid, calleja without potassium permanganate, trichromic of Masson, and modified congo red-acidified toluidine blue stain. Comparing the obtained results to literature data for adult dogs, it was verified that newborns posses the same skin components of adult dogs. The thickness of the basal membrane is linear for both males and females. Regarding sex, there was a significant difference of thickness on collagen fibers from superficial and deep dermis, as well as on elastic and reticular fibers from the right dorsum among males and females of one, 20, 40 and 60 days of life. On male puppies the fibers presented linear thickening. Concerning the age, there also was significant difference of thickness on collagen fibers from superficial and deep dermis and elastic fibers. On male puppies there is a tendency of thickening for those fibers, as the animals grow mature. The anatomic site for collecting – right dorsum and right ventral area of 60 day-old animals – had an influence on the thickness of elastic fibers. The fibers from the right dorsum of male puppies are thicker when comparing to those from the right ventral area of female puppies.

Orientador : Michiko Sakate / Resumo: A pele exerce várias funções importantes, por isto várias conseqüências deletérias podem advir devido à sua imaturidade ou perda da sua integridade. O objetivo deste trabalho foi o de avaliar a evolução da pele dos cães recém-nascidos em relação à sua morfologia e celularidade desde o nascimento até 70 dias de idade, em 28 filhotes. As amostras de pele foram colhidas da região dorsal nos um, 20, 40 e 60 dias de vida, e da região ventral nos 10, 30, 50, e 70 dias de vida. As amostras obtidas por meio de biópsia da pele dos filhotes foram processadas e coradas pela hematoxilina-eosina, ácido periódico de Schiff, calleja sem permanganato de potássio, tricrômico de Masson e vermelho do congo-azul de toluidina acidificada. Comparando-se os resultados obtidos com os dados da literatura do cão adulto pôde-se verificar que os neonatos possuem os mesmos componentes da pele dos adultos. A espessura da membrana basal é linear tanto em machos quanto em fêmeas. Em relação ao sexo, houve diferença significativa da espessura das fibras colágenas da derme superficial e derme profunda, fibras elásticas e reticulares do dorso direito entre os machos e fêmeas de um, 20, 40 e 60 dias de vida. Nos filhotes machos as fibras tiveram espessamento linear. No que diz respeito à idade também houve diferença estatística da espessura das fibras colágenas da derme superficial e profunda e fibras elásticas. Nos filhotes machos há tendência de espessamento destas fibras com o amadurecimento dos animais. O local anatômico da colheita, dorso direito e ventre direito dos animais de 60 dias de idade, teve influência na espessura das fibras elásticas. As fibras do dorso direito dos filhotes machos são mais espessas do que as do ventre direito dos filhotes fêmeas. / Abstract: The skin exerts several important functions; therefore many deleterious consequences may occur due to its immaturity or loss of integrity. The scope of this study was to evaluate the evolution of skin from newborn dogs in its morphology and cellular content from birth until 70 days of age on 28 puppies. The skin samples were collected from the dorsal area at one, 20, 40 and 60 days of life; and from the ventral area at 10, 30, 50, 70 days of life. The samples were obtained through skin biopsy and stained by hematoxylineosin, Schiff periodic acid, calleja without potassium permanganate, trichromic of Masson, and modified congo red-acidified toluidine blue stain. Comparing the obtained results to literature data for adult dogs, it was verified that newborns posses the same skin components of adult dogs. The thickness of the basal membrane is linear for both males and females. Regarding sex, there was a significant difference of thickness on collagen fibers from superficial and deep dermis, as well as on elastic and reticular fibers from the right dorsum among males and females of one, 20, 40 and 60 days of life. On male puppies the fibers presented linear thickening. Concerning the age, there also was significant difference of thickness on collagen fibers from superficial and deep dermis and elastic fibers. On male puppies there is a tendency of thickening for those fibers, as the animals grow mature. The anatomic site for collecting - right dorsum and right ventral area of 60 day-old animals - had an influence on the thickness of elastic fibers. The fibers from the right dorsum of male puppies are thicker when comparing to those from the right ventral area of female puppies. / Doutor

Dissertation submitted in compliance with the requirements for the Masters Degree in Technology: Radiography, Technikon Natal, 2001. / The purpose of this study was to evaluate the Carbon-14 Urea Breath Test e4C-UBT) and histology for the detection of Helicobacter pylori (H pylori) in terms of cost-effectiveness and patient perceptions. It was hypothesized that the 14C_UBTwas more cost-effective and more easily tolerated than a histological analysis of a biopsy specimen obtained on endoscopy for H pylori detection / M

The purpose of this study was to isolate a relatively pure population of granules from the DF and SR of 7 day old rats and characterize them biochemically. If this could be accomplished, the next step was to determine if the granule proteins may play a role in tooth eruption.

Periodontal disease is an oral inflammatory disease often associated with damage to the soft tissues and hard structures that support teeth. Within the subgingival biofilm, multiple microorganisms initiate inflammatory responses that can lead to a chronic oral inflammatory state, in which periodontal ligament may be damaged leading to alveolar bone loss. In recent studies, amnion-derived cellular cytokine solution (ACCS) and cytokines secreted by the amnion-derived multipotent progenitor cells (AMPs) obtained from the placenta illustrated evidence of wound healing, promotion of macrophage activity, and infected tissue repair. Furthermore, ACCS were capable of preventing periodontal inflammation induced by Porphyromonas gingivalis (P. gingivalis) in an experimental model, suggesting its role in modulating host's inflammatory response in order to arrest, if not eradicate, inflammation in periodontal tissues.. This study aimed to investigate a novel combination of ACCS that specifically targeted the bone tissues. Whereas in previous study, ACCS was tested to identify the efficacy of its ability to reduce inflammation and to repair damages in gingiva and reduce alveolar bone loss, ACCS-B was tested here to determine its impact on bone turnover. The study used a periodontal model of rabbit jaws to induce periodontitis. Periodontitis-specific pathogen P. gingivalis was applied in a carboxymethyl cellulose (CMC) slurry topically applied to the mandibular second premolars at the site of silk ligatures.. The silk ligatures were placed to serve as the retention for the P. gingivalis slurry. The protocol followed two phases, the disease induction phase (6 weeks) and the treatment phase (6 weeks). In the disease induction phase, 24 New-Zealand White rabbits were induced with topical P. gingivalis every other day on the mandibular premolars. At the end of this phase, 3 rabbits were randomly selected and sacrificed to serve as the baseline disease group. Of the remaining 21 rabbits, 3 rabbits were kept untreated and served as untreated-control group and the remaining 18 rabbits were randomly assigned to 3 different treatment groups: Placebo Treatment (Saline), ACCS-U treatment, and ACCS-B treatment. During the treatment phase, each treatment group received its respective treatments to the ligated sites 3 times a week in an every-other-day fashion. After 6 weeks, the rabbit jaws were evaluated histologically. At the end of treatment phase, the untreated group exhibited significant progression of periodontal disease evident by the destruction of soft and hard tissue on the site of interest. ACCS-U and ACCS-B showed substantial reduction of tissue inflammation and crestal bone loss compared to those in baseline disease, untreated, and saline-treated groups, however there were no statistically significant differences between ACCS-B and ACCS-Utreated sites. . Histological findings, specifically Masson's Trichrome stained sections, revealed that collagen deposition and new bone formations were actively present in the alveolar bone of ACCS-treated groups. Moreover, quantitative assessments of inflammatory cell activity and osteoclastic activity at the crestal and along the bone surfaces of the ligated sites by Hematoxylin-Eosin stains and tartrate-resistant acid phosphatase stains respectively, confirmed the anti-inflammatory activity by the ACCS-treatments. The osteocalcin stained cells also revealed the initiation of bone formation and bone repair in the ACCS-treated groups. These results state a clear indication of control of inflammatory disease and as a result, bone formation and tissue repair in both ACC-U and ACC-B treated groups.. As for the untreated group and the baseline disease group, significant disease progression is highlighted by bone loss and high level of inflammation in the site of interest. Although ACCS-B was inferior to previously tested ACCS-U with regard to anti-inflammatory effects and bone formation it clearly demonstrated its future use as potential treatment for periodontal disease, along with restoration of damaged tissues. These results further solidify findings that ACCS acts through host-modulated anti-inflammatory actions in the inflammatory conditions.