Sample records for sweat glands
from WorldWideScience.org

Sample records 1 - 5 shown.



1

Descrição histológica do escroto de caprinos nativos do Estado do Piauí, segundo o grau de bipartição escrotal/ Scrotum histological description in native goats from Piaui State, according to scrotal bipartition level

Nunes, Aline Soares; Cavalcante Filho, Miguel Ferreira; Machado Júnior, Antonio Augusto Nascimento; Silva, Ana Lúcia Abreu; Conde Júnior, Airton Mendes; Souza, José Adalmir Torres; Carvalho, Maria Acelina Martins
2010-08-01

Resumo em português Esta pesquisa teve por objetivo avaliar as características histológicas do escroto de caprinos com diferentes graus de divisão escrotal. Foram utilizados 15 caprinos distribuídos em três grupos (GI, escroto não bipartido; GII, escroto bipartido até 50% do comprimento testicular; e GIII, escroto bipartido superior a 50% do cumprimento do testículo). Fragmentos do escroto foram submetidos a processamento histológico e analisados em microscópio de luz. Na pele do e (mais) scroto, a epiderme apresentava-se composta por epitélio pavimentoso estratificado queratinizado, organizado nos estratos basal, espinhoso, granuloso e córneo. Sua espessura, independentemente da divisão escrotal, aumentou gradativamente da região proximal à distal, sendo mais espessa nos caprinos do GIII (68,91µm) e mais fina na região da rafe escrotal do grupo GI. A derme apresentava-se escassa em tecido adiposo e possuía uma maior quantidade de glândulas sudoríparas apócrinas nos animais do GIII (18,12GS mm-2), quando comparado com os do GI (16,14GS mm-2) e GII (14,82GS mm-2). Com relação às glândulas sebáceas, não foi encontrada diferença numérica significativa entre os animais pesquisados. Concluiu-se que os caprinos que apresentam bipartição escrotal mais acentuada (GIII) podem apresentar uma maior produção de suor, pois contém maior quantidade de glândulas sudoríparas no escroto, fato que pode favorecer a perda de calor por evaporação, colaborando no processo de termorregulação testicular. Resumo em inglês Among male goats in tropical regions, a bipartition in scrotum happens frequently Studies have shown that goats with bigger accented division in scrotum have reproductive advantages in relation to those that had not presented this characteristic, giving them a better thermoregulation for testis in the animals with bipartite scrotum. This research aimed to evaluate histological characteristics of the scrotum, in 15 goats, distributed in three groups, according to scrotal c (mais) onfiguration (GI, unique scrotum; GII, scrotum bipartite up to 50% of the testicular length; GIII, scrotum bipartite upper than 50%). It was removed fragments of the organ and they were processed, according to histological routine and analyzed in light microscope. The scrotum skin is constituted of epidermis and dermis, and the epidermis is formed by stratified keratinizing epithelium, organized in basale, spinosum, granulosum, and corneum stratums. The epidermis width, independent of the scrotum configuration, increased gradually from the proximal to the distal region, being wider (average = 68,91µm) in GIII's animals. In the medial region of bipartite scrotum the epidermis showed to be thinner than on the raphe in animals of unique scrotum. The dermis, rare in fat tissue, showed a greater quantity of sweat apocrine glands in the animal of GIII, average of 18,12GS mm-2, while in the GI's, 16,14GS mm-2 and GII, 14,82GS mm-2, suggesting a greater production of sweat that could favor the lost of heat by evaporation. About the number of sebaceous glands, there was no statistic difference among the groups.

Scientific Electronic Library Online (Portuguese)

2

Síndrome de Hay-Wells: relato de caso/ Hay-Wells syndrome: a case report

Rosa, Dário Júnior de Freitas; Machado, Ronaldo Figueiredo; Martins Neto, Marcelino Pereira; Sá, Alessandra Almeida Montenegro de; Gamonal, Aloísio
2010-04-01

Resumo em português A síndrome de Hay-Wells é uma forma rara de displasia ectodérmica, descrita inicialmente em 1976 por Hay e Wells, de caráter autossômico dominante com expressão variável, composta por anomalias congênitas da pele, cabelos, dentes, unhas e glândulas sudoríparas. Descrevemos o caso de um paciente de 17 anos, filho de pais não consangüíneos, que apresentava anquiloblefaron filiforme adenatum, displasia ectodérmica e fenda palatina ao nascimento, sinais consider (mais) ados cardinais pela maioria dos autores. Destacamos também a importância do acompanhamento multidiscliplinar dos pacientes. Resumo em inglês Hay-Wells syndrome is a rare form of ectodermal dysplasia initially described by Hay and Wells in 1976. It is an autosomal dominant disorder with varying forms of expression featuring congenital abnormalities of the skin, hair, teeth, nails and sweat glands. The present report describes the case of a 17-yearold white boy, the son of nonconsanguineous parents, who presented ankyloblepharon filiforme adnatum, ectodermal dysplasia and a cleft palate at birth, which are consi (mais) dered cardinal signs of this syndrome by most authors. We also highlight the importance of implementing multidisciplinary follow-up of these patients.

Scientific Electronic Library Online (Portuguese)

3

Taxa de sudação e parâmetros histológicos de bovinos submetidos ao estresse calórico/ Sweat rate and histological parameters of cattle submitted to heat stress

Ferreira, F.; Campos, W.E.; Carvalho, A.U.; Pires, M.F.A.; Martinez, M.L.; Silva, M.V.G.B.; Verneque, R.S.; Silva, P.F.
2009-08-01

Resumo em português Caracterizaram-se o pelame, a taxa de sudação e os parâmetros histológicos de 71 bovinos F2 (½ Gir x ½ Holandês), 39 machos e 32 fêmeas, entre 14 e 20 meses de idade, submetidos a condições de termoneutralidade (22ºC e 70% de umidade relativa - UR) e ao estresse calórico (42ºC e 60% UR). Os tratamentos foram realizados nas estações de verão e inverno em câmara bioclimática. O comprimento dos pelos e a espessura da capa foram maiores no inverno que no ver (mais) ão, sendo de 1,58 e 1,04cm e 5,31 e 3,91mm, respectivamente (P Resumo em inglês Coat thickness, sweat rate, and histological parameters were characterized in 39 males and 32 females crossbred cattle (½ Holstein x ½ Gir), averaging 14 to 20 months of age, submitted to thermoneutrality (22ºC and 70% of relative humidity - RH) and heat stress (42ºC and 60% RH) in summer and winter in a climatic chamber. Fur length and coat thickness were significantly higher in summer than winter, 1.58 and 1.04cm and 5.31 and 3.91mm, respectively (P(mais) ology showed that sweat gland area and distance of gland to epithelium was shorter in summer than in winter, 2,589 and 4,051µm and 294 and 344µm, respectively (P

Scientific Electronic Library Online (Portuguese)

4

Síndrome da displasia ectodérmica anidrótica no período neonatal - relato de caso/ Anhidrotic ectodermal dysplasia syndrome in the neonatal period - case report

Araújo, Breno F. de; Nora, Adelar B.; Marcon, Márcia Z.; Medeiros, Daniel B. de; Araújo, Eduardo S. de; Fachinello, Fernanda Z.
2001-02-01

Resumo em português Objetivo: Descrever uma síndrome rara em crianças e alertar os pediatras sobre a consideração desta patologia no diagnóstico diferencial de febre de origem obscura no recém-nascido. Métodos: Relato de caso de displasia ectodérmica anidrótica em um RN de dez dias, internado na UTI neonatal do Hospital Geral de Caxias do Sul, apresentando episódios recorrentes de hipertermia desde os primeiros dias de vida. Resultados: O paciente apresentava mucosas ressecadas, pe (mais) le seca e descamativa e hipertermia. Foi realizada biópsia de pele na região dorsal do paciente, verificando-se ausência de estruturas glandulares écrinas e sebáceas e hipoplasia de estruturas foliculares. O paciente está em acompanhamento ambulatorial, recebendo tratamento sintomático. Conclusões: A síndrome de displasia ectodérmica anidrótica é rara, mas deve ser considerada no diagnóstico diferencial de recém-nascidos que apresentam episódios febris recorrentes. Durante o período neonatal as manifestações clínicas da doença são sutis e inespecíficas, tornando-se mais aparentes após alguns meses de vida. Não existe tratamento específico e definitivo para essa síndrome. Resumo em inglês Objective: To describe a rare syndrome among children and to urge pediatricians to consider in considering such diagnosis when investigating fever of unknown etiology among neonates. Methods: Case report of Anhidrotic Ectodermal Dysplasia Syndrome in a ten day old newborn hospitalized in a NICU at Hospital Geral de Caxias do Sul. The child presented recurrent episodes of fever since the firsts days of life. Results: The patient presented dry mucous, dry skin and fever. Sk (mais) in biopsy was performed in his back region. A lack of sweat and sebaceous glands as well as hypoplasia of follicular structures were identified. The patient is being monitored at the clinic, receiving supportive treatment. Conclusion: Anhidrotic ectodermal dysplasia syndrome is a rare disorder that must be considered when investigating newborns with recurrent episodes of fever. During the neonatal period, the clinical manifestations of the disease are subtle and unspecific. Such findings become more visible after a few months of life. There is no definitive treatment for this syndrome.

Scientific Electronic Library Online (Portuguese)

5

Alterações cutâneas do cão no Kala-Azar sul-americano

Torres, C. Magarinos
1941-01-01

Resumo em inglês According to E. Chagas (1938), South-American Kala Azar is a widespread disease from the jungle, several cases being reported from North Brazil (Estado do Pará: Marajó Island, Tocantins and Gurupi river valleys; Estados do Piauí and Ceará: coast and hinterland). Other cases were found in Northeast Brazil (Estados de Pernambuco, Alagôas and Sergipe: coast and hinterland; Estado da Bahia: hinterland). A few cases were described from Estado de Mato-Grosso (Brazil), Prov (mais) incia de Salta and Território do Chaco (Argentine), and Zona contestada do Chaco (Paraguai-Bolívia). A well defined secondary anemia associated with enlargement of the liver and spleen are the chief symptoms. Death usually occurs in cachexia and with symptoms of heart failure. Half the patients were children aged less than ten years (CHAGAS, CASTRO & FERREIRA, 1937). Quite exhaustive epidemiological researches performed by CHAGAS, FERREIRA, DEANE, DEANE & GUIMARÃES (1938) in Municipio de Abaeté (Estado do Pará, Brazil) gave the incidence of 1.48% for the natural infection in human, 4.49% in dogs, and 2.63% in cats. The infection was arcribed (CUNHA & CHAGAS, 1937) to a new species of Leishmania (L. chagasi). Latter CUNHA (1938) state, that it is identical to L. infantum. ADLER (1940) found that so far it has been impossible to distinguish L. chagasi from L. infantum by any laboratory test but a final judgment must be reserved until further experiments with different species of sandflies have been carried out. Skin changes in canine Kala Azar were signaled by many workers, and their importance as regards the transmission of the disease is recognized by some of them (ADLER & THEODOR, 1931, 2. CUNHA, 1933). Cutaneous ulcers in naturally infected dogs are referred by CRITIEN (1911) in Malta, by CHODUKIN & SCHEVTSCHENKO (1928) in Taschkent, by DONATIEN & LESTOCQUARD (1929) and by LESTOCQUARD & PARROT (1929) in Algeria, and by BLANC & CAMINOPETROS (1931) in Greece. Depilation is signaled by YAKIMOFF & KOHL-YAKIMOFF (1911) in Tunis, by YAKIMOFF (1915) in Turkestan. Eczematous areas or a condition described as "eczema furfurace" is sometimes noted in the areas of depilation (DONATIEN & LESTOCQUARD). The skin changes noticed by ADLER & THEODOR (1932) in dogs naturally infected with Mediterranean Kala Azar can be briefly summarized as a selective infiltration of macrophages around hair follicles including the sebaceous glands and the presence of infected macrophages in normal dermis. The latter phenomenon in the complete absence of secondary infiltration of round cells and plasma cells is the most striking characteristic of canine Kala Azar and differentiates it from L. tropica. In the more advanced stages the dermis is more cellular than that of normal dogs and may even contain a few small dense areas of infiltration with macrophages and some round cells and polymorphs. The external changes, i. e., seborrhea and depilation are roughly proportional to the number of affected hair follicles. In dogs experimentally infected with South-American Kala Azar the parasites were regularly found in blocks of skin removed from the living animal every fortnight (CUNHA, 1938). The changes noticed by CUNHA, besides the presence of Leishmania, were perivascular and diffuse infiltration of the cutis with mononuclears sometimes more marked near hair follicles, as well as depilation, seborrhea and ulceration. The parasites were first discovered and very numerous in the paws. Our material was obtained from dogs experimentally infected by Dr. A. MARQUES DA CUNHA

Scientific Electronic Library Online (Portuguese)