Thesis--Johns Hopkins University. / Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.

Typescript, etc. / Digitized by Kansas State University Libraries

Thesis (Ph.D.)--Boston University / Several investigators have reported on the fine structure of the normal adrenal gland of the rat using electron microscopy, and many have described the changes which occur during the processes of regeneration of both enucleated and transplanted adrenal glands, using a variety of histochemical techniques for subsequent analysis by optical microscopy. Since the larger inclusions, such as intracellular lipid droplets, have been followed through the stages of regeneration (Brenner, et al, 1953), an attempt was made in this investigation to analyze the changes in cytoplasmic organelles during the process of regeneration, utilizing the electron microscope, and to correlate the observations with those of the regenerating adrenal gland that have been reported using optical microscopy. Experimental Procedure Male albino rats of the Wistar strain, weighing between ninety-five and one hundred fifty grams were bilaterally adrenalectomized by the dorsal approach under ether anesthesia. The right adrenal glands were either used for control purposes or discarded. The left adrenal gland was bisected and autotransplanted into pockets made in the dorsal musculature. All animals were given Purina Laboratory Chow ad libitum and a one percent saline drinking water for a period of seven days post-operatively, after which tap water was given. These animals were sacrificed and their transplants removed after two, four, seven, fourteen, twenty-one, and sixty days of regeneration. Tissue specimens of one cubic millimeter size were fixed for two hours in cold one percent osmium tetroxide buffered to pH 7.2 with veronal-acetate buffer, after which they were dehydrated and embedded in either methacrylate monomers or epoxy resin. After curing the plastic in an oven, sections of three hundred to eight hundred Angstrom units thickness were cut on a Porter-Blum microtome, placed on carbon coated copper grids, which has previously been covered with a thin layer of Formvar, and observed in an RCA EMU Microscope, Model 3B, at fifty kilovolts. Normal control animals were sacrificed and their left adrenals processed in the same manner as above [TRUNCATED]

Thesis (Ph. D.)--University of Wisconsin--Madison, 1955. / Typescript. Abstracted in Dissertation abstracts, v. 15 (1955) no. 12, p. 2608. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 85-93).

Inaug.-diss.--Bern. / "Litteraturverzeichnis": p. 24-27.

Diss. (sammanfattning) Uppsala : Univ., 2004. / Härtill 4 uppsatser.

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Ciências da Saúde, Programa de Pós-Graduação em Ciências da Saúde, 2015. / Submitted by Ana Cristina Barbosa da Silva (annabds@hotmail.com) on 2015-04-24T18:13:12Z No. of bitstreams: 1 2015_RenataSantaremdeOliveira.pdf: 1013948 bytes, checksum: 270c3638838ff69a7a7385a87a318a4b (MD5) / Approved for entry into archive by Ruthléa Nascimento(ruthleanascimento@bce.unb.br) on 2015-04-28T16:23:35Z (GMT) No. of bitstreams: 1 2015_RenataSantaremdeOliveira.pdf: 1013948 bytes, checksum: 270c3638838ff69a7a7385a87a318a4b (MD5) / Made available in DSpace on 2015-04-28T16:23:35Z (GMT). No. of bitstreams: 1 2015_RenataSantaremdeOliveira.pdf: 1013948 bytes, checksum: 270c3638838ff69a7a7385a87a318a4b (MD5) / A hiperplasia adrenal congênita constitui um grupo de deficiências genéticas enzimáticas que interfere na síntese normal dos esteróides pelo córtex adrenal. A forma mais comum é a deficiência da 21-hidroxilase que conduz a deficiência de cortisol e produção excessiva de andrógenos adrenais. Suas consequências clínicas são significativas e incluem insuficiência adrenal, genitália ambígua, baixa estatura e infertilidade. Os objetivos do trabalho foram investigar os aspectos clínicos à apresentação, os desfechos clínicos ao longo do seguimento e as associações genótipo-fenótipo dos pacientes portadores de hiperplasia adrenal congênita acompanhados no Hospital Universitário de Brasília. Trata-se de um estudo retrospectivo e longitudinal em que foram levantados os dados clínicos de 29 pacientes com diagnóstico clínico e molecular da deficiência da 21-hidroxilase. Os cálculos estatísticos foram realizados por meio do aplicativo SPSS 20.0 ou STATA 8.2 e a confecção gráfica pelo GraphPadPrism 6. Dos 29 pacientes, 19 eram portadores da forma perdedora de sal e 10 da forma virilizante simples. Houve correlação genótipo-fenótipo em 73,7% dos perdedores de sal e 70% dos virilizantes simples. A puberdade precoce central foi mais prevalente nos indivíduos virilizantes simples (66,7%). A mediana da estatura final foi -1,17 DP no grupo dos perdedores de sal e -2,62 DP no grupo virilizante simples. A dose de hidrocortisona foi significativamente maior nos dois primeiros anos de vida em relação aos anos seguintes de tratamento. Não foi demonstrada associação estatisticamente significativa entre o genótipo e os parâmetros clínicos neste trabalho. Não houve associação entre baixa estatura e puberdade precoce central, e a mediana da dose equivalente de hidrocortisona. Nos pacientes com hiperplasia adrenal congênita forma clássica, observou-se fraca associação entre o genótipo e doses equivalentes de hidrocortisona. Os desfechos clínicos não foram relacionados ao genótipo nem ao tratamento. O tamanho reduzido da amostra pode ter sido um limitante no estudo, porém a variabilidade interindividual quanto às necessidades diárias de glicocorticóide apresenta-se como um desafio adicional no tratamento da hiperplasia adrenal congênita e sugere que fatores genéticos possam modular essa resposta. / Congenital adrenal hyperplasia refers to a group of genetic enzyme deficiencies that impair normal steroid synthesis in the adrenal cortex. The most common form is 21-hydroxylase deficiency, which results in hypocortisolism and androgen overproduction. Important clinical outcomes include adrenal insufficiency, genital ambiguity, short stature and infertility. The aims of the study were to investigate the clinical aspects at presentation, the clinical outcomes and genotype-phenotype correlations in patients with congenital adrenal hyperplasia followed at the University Hospital of Brasilia. A retrospective and longitudinal study of 29 patients with clinical and molecular diagnosis of 21-hydroxylase deficiency was performed. Statistics and graphs were evaluated using SPSS 20.0 or STATA 8.2 and GraphPadPrism 6. Nineteen patients had the salt-wasting form and ten had the simple virilizing form. Genotype-phenotype correlation was positive in 73,7% of the salt-wasting group and 70% of the simple virilizing group. Central precocious puberty was more prevalent in simple virilizers (66,7%). Final height median was -1.17 SD in salt-wasters and -2.62 SD in simple virilizers. Hydrocortisone dose was significantly greater in the first two years than during the following treatment years. There was no association between genotype and clinical features. The median equivalent dose of hydrocortisone was not associated with short stature and central precocious puberty. In the classic form of congenital adrenal hyperplasia, a weak correlation between genotype and treatment was noted. Outcomes were not genotype-related neither treatment-related. A sample-size effect may partially explain the results. However, the interindividual variability in daily glucocorticoid dose requirements remains a challenge in congenital adrenal hyperplasia therapy and suggests that genetic factors could modulate the glucocorticoid response.

Several case reports have been filed regarding the latent presentation of hemorrhagic pheochromocytomas in the trauma setting; however, few patients have been found to exhibit these symptoms in the absence of a tumor. In this report, we discuss a patient who sustained blunt abdominal trauma leading to the development of an adrenal hemorrhage and his unexpected sequelae of symptoms. Discovery of the source of the patient's symptoms was delayed secondary to multiple comorbidities in the critical care setting and work-up for other sources such as infection and agitation. Hypertensive urgency was confirmed to be of adrenal etiology with measurement of persistently elevated plasma and urine metanephrines during the hospital course. The patients hypertensive urgency was successfully managed with the use of antisympathomimetics including an esmolol drip, clonidine, and eventually tapered dose of metoprolol. Symptoms improved over time, and repeat CT imaging weeks later showed resolution of the hematoma. Review of literature reveals only one other case of adrenal hemorrhage after blunt force trauma resulting in hemorrhagic psuedotumor. To our knowledge, this is the second such case ever presented. This case is discussed along with the presentation, diagnostic work-up, and treatment of a critically ill patient with an adrenal hemorrhage masked as a pseudotumor.

Call number: LD2668 .T4 1937 T61

published_or_final_version / Zoology / Master / Master of Science