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1.
Rev. chil. obstet. ginecol. (En línea) ; 86(3): 326-331, jun. 2021. ilus
Article in Spanish | LILACS | ID: biblio-1388656

ABSTRACT

INTRODUCCIÓN: Los tumores de células de Sertoli-Leydig son neoplasias de ovario infrecuentes, lo que dificulta su diagnóstico y tratamiento. OBJETIVO: Revisar y sintetizar el manejo actual de los tumores de células de Sertoli-Leydig. MÉTODO: Se realizó una revisión de la literatura reciente sobre tumores de células de Sertoli-Leydig, a propósito de un caso en nuestro centro. RESULTADOS: Los tumores de las células de Sertoli-Leydig son infrecuentes, con mayor incidencia en edades tempranas. Ante una paciente joven con una lesión anexial unilateral y signos de virilización deberán considerarse estos tumores dentro del diagnóstico diferencial. En los estadios iniciales y en pacientes jóvenes podrá plantearse un tratamiento quirúrgico que preserve la fertilidad, y la asociación de tratamiento adyuvante dependerá de la diferenciación y del estadiaje del tumor.


INTRODUCTION: Sertoli-Leydig cell tumors are infrequent ovarian neoplasms, which difficults their diagnosis and treatment. Objective: To review and synthesize the current management of the Sertoli-Leydig cell tumor. METHOD: A review of the recent literature regarding the Sertoli-Leydig cell tumor was carried out, regarding a case in our center. RESULTS: Sertoli-Leydig cell tumors are an infrequent entity, with a higher incidence in early ages. In a young patient with a unilateral adnexal lesion and signs of virilization, these tumors should be considered within the differential diagnosis. In early stages and young patients, a surgical treatment that preserves fertility may be considered, and the association of adjuvant treatment will depend on the differentiation and staging of the tumor.


Subject(s)
Humans , Female , Adult , Ovarian Neoplasms/surgery , Ovarian Neoplasms/diagnostic imaging , Sertoli-Leydig Cell Tumor/surgery , Sertoli-Leydig Cell Tumor/diagnostic imaging
2.
Gac. méd. boliv ; 44(2)2021.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1384974

ABSTRACT

Resumen Actualmente el tumor de células de Sertoli de tipo esclerosante, se encuentra clasificado como una variante de los tumores de células de Sertoli NOS (sin otra especificación), ya que ambos tumores presentan mutación del gen CTNNB1, codificador de b-catenina, la relevancia de su identificación radica en que esta variante se correlaciona, aunque en un bajo porcentaje, con potencial metastásico.Masculino de 56 años de edad, con cuadro de 7 años de evolución, caracterizado por presentar dolor testicular izquierdo con leve aumento de consistencia en polo inferior de testículo izquierdo, se realiza ecografía testicular, en la que se evidencia lesión heterogénea de 2 cm de diámetro máximo, dependiente de polo inferior de testículo izquierdo; se realiza orquiectomía radical izquierda, con reporte histopatológico: tumor de células de sertoli testicular. Cursando posteriormente con evolución satisfactoria, con cicatrización completa de la herida, y actualmente en vigilancia, sin necesidad de tratamiento adyuvante. Conociendo su relativa rareza y los pocos casos notificados, los tumores testiculares de células de Sertoli siguen siendo un misterio relativo y en la actualidad, continúan siendo un desafío para su diagnóstico. Con este caso, pretendemos apoyar en el conocimiento y fomentar la investigación adicional de estos tumores, con el objetivo de optimizar el diagnóstico, dar un adecuado tratamiento.


Abstract Currently, the sclerosing-type Sertoli cell tumor is classified as a variant of the NOS Sertoli cell tumors (without other specification), because it has been shown that both tumors present mutation in the CTNNB1 gene, which encodes the b-catenin (19), the relevance of its identification lies in the fact that this variant is correlated, although in a low percentage, with metastatic potential. A 56-year-old male, with a 7-year evolution, characterized by presenting left testicular pain with a slight increase in consistency in the lower pole of the left testicle, a testicular ultrasound was performed, which revealed a heterogeneous lesion of 2 cm in diameter maximum, dependent on the lower pole of the left testis; Left radical orchiectomy was performed, with histopathological report: testicular sertoli cell tumor. Later, with satisfactory evolution, with complete wound healing, and currently under surveillance, without the need for adjuvant treatment.Knowing their relative rarity and the few reported cases, testicular Sertoli cell tumors remain a relative mystery and today, they continue to be a challenge for diagnosis. With this case, we intend to support the knowledge and promote additional research on these tumors, with the aim of optimizing the diagnosis and providing adequate treatment.

3.
Rev. habanera cienc. méd ; 19(2): e2945, mar.-abr. 2020. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1126876

ABSTRACT

RESUMEN Introducción: Los tumores de Células de Sertoli son una entidad rara, con una frecuencia de 0,2-0,5 % del cáncer de ovario. El diagnóstico inicial de este tipo de tumores es difícil, debido a las variedades histológicas que presenta y a su diferenciación. Objetivo: Demostrar el valor del completamiento del proceso diagnóstico con técnicas de inmunohistoquímica en tumores ováricos para identificar una variante rara como el tumor de Células de Sertoli. Presentación del caso: Se presenta un caso de un tumor de ovario primitivo de Células de Sertoli en una paciente de 43 años de edad, con antecedentes personales de hipotiroidismo, intervenida quirúrgicamente por un tumor sólido del ovario derecho en el Hospital General Docente "Dr. Agostino Neto". En el intraoperatorio, se encontró un tumor gigante de aspecto maligno. El resultado anatomopatológico informó un tumor carcinoide típico. La paciente fue remitida al Instituto Nacional de Oncología y Radiobiología, donde la inmunohistoquímica de la biopsia informó un tumor de Células de Sertoli. Actualmente la paciente se encuentra asintomática. Conclusiones: El diagnóstico anatomopatológico preciso y la inmunohistoquímica correcta son muy importantes para el manejo y tratamiento de este tipo de tumor.


ABSTRACT Introduction: Sertoli cell tumors are a rare entity with an incidence of ovarian cancer of 0,2-0,5 %. The initial diagnosis of this type of tumors is difficult to make due to the histological varieties and its differentiation. Objective: To demonstrate the value of immunochemical techniques in the completion of the diagnostic process of ovarian tumors aimed at identifying a rare variant such as Sertoli cell tumor. Case presentation: A 43-year old woman with a primitive Sertoli cell tumor of the ovary is presented. The patient had personal history of hypothyroidism. She underwent surgery at "Dr. Agostinho Neto" General Teaching Hospital because she had been diagnosed with a solid tumor of the right ovary. During the intraoperative period, a giant tumor with a malignant appearance was found. The pathological result reported a typical carcinoid tumor. The patient was referred to the National Institute of Oncology and Radiobiology where the immunohistochemistry of the biopsy reported a Sertoli cell tumor. Currently, the patient is asymptomatic. Conclusions: The accurate pathological diagnosis and the correct immunohistochemistry are very important for the management and treatment of this type of tumor.

4.
Rev. bras. ginecol. obstet ; 41(7): 440-448, July 2019. tab
Article in English | LILACS | ID: biblio-1020599

ABSTRACT

Abstract Objective To describe a series of cases of ovarian Sertoli-Leydig cell tumors (SLCTs). Methods Retrospective review of 12 cases of SLCT treated at the Hospital do Câncer de Barretos, Barretos, state of São Paulo, Brazil, between October 2009 and August 2017. Results The median age of the patients was 31 years old (15-71 years old). A total of 9 patients (75.0%) presented symptoms: 8 (66.7%) presented with abdominal pain, 5 (41.7%) presented with abdominal enlargement, 2 (16.7%) presentedwith virilizing signs, 2 (16.7%) presented with abnormal uterine bleeding, 1 (8.3%) presented with dyspareunia, and 1 (8.3%) presented with weight loss. The median preoperative lactate dehydrogenase (LDH) was 504.5 U/L (138-569 U/L), alpha-fetoprotein (AFP) was 2.0 ng/ml (1.1-11.3 ng/ml), human chorionic gonadotropin (β-hCG) was 0.6 mUI/ml (0.0-2.3 mUI/ml), carcinoembryonic antigen (CEA) was 0.9 ng/ml (0.7-3.4 ng/ml), and cancer antigen 125 (CA-125) was 26.0 U/ml (19.1-147.0 U/ml). All of the tumors were unilateral and surgically treated. Lymphadenectomy was performed in 3 (25.0%) patients, but none of the three patients submitted to lymphadenectomy presented lymph node involvement. In the anatomopathological exam, 1 (8.3%) tumor was well-differentiated, 8 (66.7%) were moderately differentiated, and 3 (25.0%) were poorly differentiated. A total of 5 (55.6%) tumors were solid-cystic, 2 (22.2%) were purely cystic, 1 (11.1%) was cystic with vegetations, and 1 (11.1%) was purely solid, but for 3 patients this information was not available. The median lesion size was 14.2 cm (3.2-23.5 cm). All of the tumors were at stage IA of the 2014 classification of the International Federation ofGynecology andObstetrics (FIGO). A total of 2 (16.7%) patients received adjuvant treatment; 1 of themunderwent 3 cycles of paclitaxel and carboplatin every 21days, and the other underwent 4 cycles of ifosfamide, cisplatin and etoposide every 21 days. None of all of the patients had recurrence, and one death related to complications after surgical staging occurred. Conclusion Abdominal pain was the most frequent presentation. There was no ultrasonographic pattern. All of the SLCTs were at stage IA, and most of them were moderately differentiated. Relapses did not occur, but one death related to the surgical staging occurred.


Resumo Objetivo Descrever uma série de casos de tumores de células de Sertoli-Leydig (TCSLs) ovarianos. Métodos Revisão retrospectiva de 12 casos de TCSL tratados no Hospital de Câncer de Barretos entre outubro de 2009 e agosto de 2017. Resultados A mediana de idade foi 31 anos (15-71 anos). Um total de 9 pacientes (75,0%) apresentaram sintomas: 8 (66,7%) apresentaram dor abdominal, 5 (41,7%) apresentaram aumento abdominal, 2 (16,7%) apresentaram virilização, 2 (16,7%) apresentaram sangramento uterino anormal, 1 (8,3%) apresentou dispareunia, e 1 (8,3%) apresentou emagrecimento. A mediana de desidrogenase láctica (DHL) foi 504,5 U/L (138-569 U/L), alfafetoproteína (AFP) foi 2,0 ng/ml (1,1-11,3 ng/ml), gonadotrofina coriônica humana (β-hCG) foi 0,6 mUI/ml (0,0-2,3 mUI/ml), antígeno carcinoembrionário (CEA) foi 0,9 ng/ml (0,7-3,4) ng/ml, e antígeno cancerígeno 125 (CA-125) foi 26,0 U/ml (19,1-147,0 U/ml), todos pré-operatórios. Todos os tumores foram unilaterais e tratados cirurgicamente. Realizou-se linfadenectomia em 3 (25,0%) pacientes, por em, nenhuma das tr^es apresentou acometimento linfonodal. No exame anatomopatológico, 1 tumor (8,3%) era bem diferenciado, 8 (66,7%) eram moderadamente diferenciados, e 3 (25,0%) eram pouco diferenciados. Um total de 5 (55,6%) tumores eram sólido-císticos, 2 (22,2%) eram puramente císticos, 1 (11,1%) era cístico com vegetações, e 1 (11,1%) era puramente sólido, mas para 3 pacientes estas informações não estavam disponíveis. A mediana da dimensão da lesão foi 14,2 cm (3,2-23,5 cm). Todos os tumores eram estádio IA de acordo com a classificação de 2014 da Federação Internacional de Ginecologia e Obstetrícia (FIGO, na sigla em inglês). Duas (16,7%) pacientes receberam adjuvância; uma realizou 3 ciclos de paclitaxel e carboplatina a cada 21 dias, e a outra 4 ciclos de ifosfamida, cisplatina e etoposide a cada 21 dias. Dentre todas as pacientes, nenhuma apresentou recidiva e houve um óbito relacionado a complicações após estadiamento cirúrgico. Conclusão Dor abdominal foi a apresentação mais frequente. Todos os TCSLs eram estádio IA e a maioria era moderadamente diferenciada. Não ocorreram recidivas, mas ocorreu um óbito relacionado ao estadiamento cirúrgico.


Subject(s)
Humans , Female , Adolescent , Adult , Aged , Young Adult , Ovarian Neoplasms/epidemiology , Sertoli-Leydig Cell Tumor/epidemiology , Neoplasm Recurrence, Local/epidemiology , Ovarian Neoplasms/mortality , Ovarian Neoplasms/therapy , Prognosis , Brazil/epidemiology , Retrospective Studies , Sertoli-Leydig Cell Tumor/mortality , Sertoli-Leydig Cell Tumor/therapy , Middle Aged , Neoplasm Recurrence, Local/mortality , Neoplasm Recurrence, Local/therapy
5.
Rev. chil. urol ; 83(3): 24-26, 2018. ilus
Article in Spanish | LILACS | ID: biblio-963959

ABSTRACT

RESUMEN El tumor esclerosante de células de Sertoli del testículo es una entidad patológica infrecuente, con todo, que solo se han descrito 22 casos en la literatura científica. Son descritos como tumores unilaterales que en su mayoría se presentan entre la tercera y sexta década de vida, siendo carentes de malignidad, sin embargo, en ninguno de los casos reportados se han realizado seguimientos por periodos prolongados. Se presenta un caso clínico cuyo objetivo es socializar el primer caso de tumor esclerosante de células de Sertoli (SSCT), diagnosticado por el departamento de patología de la Universidad industrial de Santander, que se registra en Colombia. Después de tres años de seguimiento clínico el paciente no presenta recidiva, así como tampoco otras lesiones tumorales. Se considera la orquiectomia el tratamiento curativo.(AU)


SUMMARY Sclerosing tumor of Sertoli cells of the testis is an infrequent pathological entity, only 22 cases have been described in the scientific literature. They are described as unilateral tumors that mostly occur between the third and sixth decade of life, being devoid of malignancy, however, in none of the cases have been followed for prolonged periods. We present a clinical case whose objective is to socialize the first case of Sertoli cell sclerosing tumor (SSCT), diagnosed by the pathology department of the industrial university of Santander, which is registered in Colombia. After three years of clinical follow-up, the patient does not present recurrence, as well as other tumor lesions. Orchiectomy is considered the curative treatment.(AU)


Subject(s)
Male , Sertoli Cell Tumor , Testicular Neoplasms , Orchiectomy
6.
Pesqui. vet. bras ; 37(6): 650-656, jun. 2017. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-895460

ABSTRACT

Flaxseed is considered a functional food with several health benefits. However, because of its high phytoestrogen content, flaxseed influences hormone metabolism and affects the gonadal biomorphology. In this study, computerized histomorphometry was used to evaluate seminiferous and epididymal tubules, considering the different regions of the epididymis (head, body and tail) of rats subjected to a prolonged diet of flaxseed. Young adult male Wistar rats (n=20) were divided into 2 groups during their lactation period: Control Group (CG), fed casein-based meals and Flaxseed Group (FG), fed a 25% flaxseed meal. After 250 days of continuous ingestion, the animals were euthanized and a blood sample was collected. The testicles and epididymis were removed and fixed in buffered formalin solution. The samples were subjected to routine histological paraffin techniques and stained with hematoxilin and eosin. Immunostaining was performed using an antivimentin antibody for Sertoli cell identification. For morphometry, images of the slides were scanned and analyzed using Image J to determine the epithelial height, tubular and luminal diameter and tubular and luminal area. In the hormonal evaluation, FG had a higher serum concentration of estrogen (P=0.001), but no change was observed in the concentration of testosterone. The morphometric assay of seminiferous tubules and epididymal regions revealed no significant differences between the analyzed groups. Similarly, Sertoli cell quantification showed no significant differences in the FG (P=0.98). These results revealed that the continuous and prolonged intake of 25% flaxseed meals from gestation to 250 days of age, even with a significant increase in serum levels of estradiol, does not exert adverse effects on the testicular and epididymal structure or on the cells participating in the spermatogenesis of rats.(AU)


A semente de linhaça é considerada um alimento funcional com vários efeitos benéficos à saúde. Entretanto, devido ao seu elevado teor de fitoestrógenos, esta semente pode influenciar no metabolismo hormonal e interferir na biomorfologia gonadal. Neste estudo, utilizamos a histomorfometria computadorizada para avaliar os túbulos seminíferos e epididimários, considerando as diferentes regiões do epidídimo (cabeça, corpo e cauda) de ratos submetidos a uma dieta prolongada de semente de linhaça. Foram utilizados ratos Wistar machos adultos jovens (n=20) divididos em 2 grupos, durante o período de lactação: Grupo Controle (GC) a base de caseína e Grupo Linhaça (GL) alimentados com 25% de semente de linhaça. Ao final de 250 dias de ingestão contínua, os animais foram sacrificados e amostra de sangue foi coletada. Os testículos e epidídimos foram retirados e fixados em formol tamponado. As amostras foram submetidas ao processamento histológico de rotina para parafina e coradas em hematoxilina e eosina. Foi feita a imunomarcação com anticorpo antivimentina para identificação das células de Sertoli. Para morfometria, as imagens das lâminas foram digitalizadas e analisadas pelo software ImageJ para obtenção dos dados de altura epitelial, diâmetro e área tubular e luminal. Na avaliação hormonal o GL teve maior concentração de estrógeno sérico (p=0,001), mas nenhuma mudança na concentração de testosterona foi observada. Nos parâmetros morfométricos dos túbulos seminíferos e das regiões epididimárias, não houve diferenças significativas entre os grupos analisados. Da mesma forma, a quantificação das células de Sertoli não apresentaram diferenças significativas no GL (p=0,98). Estes resultados mostraram que o consumo contínuo e prolongado de 25% de semente de linhaça desde período gestacional até 250 dias de idade, mesmo com o aumento significativo nos níveis séricos de estradiol, não exerceram efeitos adversos sobre a estrutura testicular e epididimária, assim como nas células participantes da espermatogênese em ratos.(AU)


Subject(s)
Animals , Male , Rats , Seeds , Testis/anatomy & histology , Rats, Wistar/anatomy & histology , Flax/adverse effects , Epididymis/anatomy & histology , Seminiferous Tubules/anatomy & histology , Sertoli Cells , Vimentin , Histological Techniques/veterinary , Phytoestrogens/adverse effects
7.
Med. lab ; 23(7/8): 311-330, jul-Ago. 2017. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-883693

ABSTRACT

Resumen: la hormona antimülleriana, inicialmente denominada sustancia inhibitoria mülleriana, es una glicoproteína homodimérica de 12,5 kDa, que pertenece a la familia del factor de crecimiento transformante beta (TGF-ß) y desempeña un papel crucial en la diferenciación sexual masculina al favorecer la regresión de los conductos de Müller. Dado que su producción en el varón es principalmente por las células de Sertoli inmaduras, en las últimas décadas ha crecido su utilidad más allá de la evaluación de la función ovárica y tratamientos de fertilidad en las mujeres, lo que ha permitido evaluar en el varón la función testicular y los estados de hipogonadismo, trastornos de la diferenciación sexual, pubertad patológica, criptorquidia, entre otras condiciones clínicas revisadas en este manuscrito. Además, esta revisión describe el rol fisiológico de la hormona antimülleriana en los testículos prepuberales y las pruebas de laboratorio disponibles para su medición. (AU)


Abstract: The antimullerian hormone, initially referred as mullerian inhibitory substance, is a 12.5 kDa homodimeric glycoprotein, belonging to the transforming growth factor beta (TGF-ß) family that playing a crucial role in male sexual differentiation by favoring regression of the Mullerian ducts. Since their production in the male is mainly by the immature Sertoli cells, in the last decades its usefulness has growth beyond the evaluation of the ovarian function and female fertility treatments, which has allowed evaluating the testicular function in male and affections such as hypogonadism, disorders of sexual differentiation, pathological puberty, cryptorchidism and others clinical conditions reviewed in this manuscript. In addition, this review describes the physiological role of the antimüllerian hormone in the prepubertal testes and the laboratory tests available for its measurement. (AU)


Subject(s)
Humans , Sexual Vulnerability
8.
Pesqui. vet. bras ; 36(4): 258-262, tab, graf
Article in English | LILACS | ID: lil-787569

ABSTRACT

With the objective to assess the effect of scrotal bipartition on spermatogenesis in sheep, the testes were used from 12 crossbred rams of sheep farms in the municipality of Patos, Paraíba, Brazil, distributed into two groups: GI with six rams with scrotal bipartition, and GII with six rams without scrotal bipartition. The testicular biometry was measured and the testes were collected, fixed in Bouin and fragments were processed to obtain histological slides. The spermatogenesis yield and the Sertoli cell efficiency was estimated by counting the cells of the spermatogenetic line at stage one of the seminiferous epithelium cycle and the Sertoli cells. The results were submitted to analysis of variance with the ASSISTAT v.7.6 program and the mean values were compared by the Student-Newman-Keuls test (SNK) at 5% significance. The testicular biometric parameters did not show statistical difference (p>0.05) between the groups. The meiotic, spermatogenetic and Sertoli cell efficiency were higher in bipartitioned rams (p<0.05), while the mitotic yield did not differ (p>0.05) between GI and GII. The results indicated that there is superiority in the spermatogenetic parameters of bi-partitioned rams, suggesting that these sheep present, as reported in goats, indication of better reproductive indices.


Com o objetivo de avaliar o efeito da bipartição escrotal sobre a espermatogênese em ovinos, foram utilizados os testículos de 12 ovinos sem raça definida oriundos de criadouros do município de Patos-PB, Brasil, distribuídos em dois grupos, GI de seis animais com bipartição escrotal e o GII de seis animais sem bipartição escrotal. Realizou-se a aferição da biometria testicular, em seguida, os testículos foram coletados, fixados em Bouin e fragmentos foram processados para obtenção de lâminas histológicas. Foi estimado o rendimento da espermatogênese e eficiência das células de Sertoli contando-se as células da linhagem espermatogênica no estádio I do Ciclo do Epitélio Seminífero, bem como as células de Sertoli. Os resultados foram submetidos à análise de variância pelo programa ASSISTAT v.7.6 e os valores médios foram comparados pelo teste Student-Newman-Keuls (SNK) a 5% de significância. Os parâmetros de biometria testicular não apresentaram diferença estatística (p>0,05) entre os grupos. Os rendimentos meiótico, espermatogênico e a eficiência das células de Sertoli mostraram-se superiores em animais bipartidos (p<0,05), enquanto o rendimento mitótico não diferiu (p>0,05) entre GI e GII. Os resultados indicaram existir superioridade nos parâmetros espermatogênicos de ovinos bipartidos, sugerindo que estes animais apresentam, assim como constatado em caprinos, indicativo de melhores índices reprodutivos.


Subject(s)
Animals , Male , Sertoli Cells/physiology , Scrotum/anatomy & histology , Scrotum/physiology , Spermatogenesis/physiology , Sheep/physiology , Biometry , Testis/physiology
10.
Arq. bras. med. vet. zootec ; 66(4): 1010-1014, 08/2014. graf
Article in Portuguese | LILACS | ID: lil-722578

ABSTRACT

Um ganso adulto macho (Anser cygnoides), da família Anseriformes, de idade desconhecida, proveniente de uma criação da Universidade Luterana do Brasil, foi encontrado morto, sem apresentar histórico clínico, e foi submetido à investigação post mortem no Setor de Patologia Veterinária do Hospital Veterinário. Com base nos achados de necropsia e no exame histopatológico, definiu-se como causa da morte do animal hemorragia interna em razão da ruptura de vasos sanguíneos em uma neoplasia no testículo direito (sertolioma), com metástase no fígado...


An adult male goose (Anser cygnoides) of unknown age, raised at the Lutheran University of Brazil, was found dead without showing clinical history and was submitted for post mortem investigation in the Department of Pathology of the Veterinary Hospital. From the necropsy and histopathological findings, the cause of death was defined as exsanguination due to intestinal hemorrhage from ruptured vessels in a tumor in the right testis, which also presented hepatic metastasis...


Subject(s)
Animals , Male , Poultry Diseases/pathology , Geese , Testicular Neoplasms/veterinary , Sertoli Cell Tumor/veterinary , Autopsy/veterinary , Hemorrhage/veterinary , Testis/pathology
11.
Arq. bras. med. vet. zootec ; 65(5): 1329-1338, out. 2013. tab
Article in English | LILACS | ID: lil-689749

ABSTRACT

Aiming to evaluate the effect of the diet protein content on testicular parameters in pigs, 21 non-gelded male Dalland pigs were used and randomly divided into three groups. Males belonging to groups G2 and G3 received a diet with crude protein levels of 15% below and above, respectively, in relation to G1 (control). At 210 days of age, animals were castrated, and testis and epididymis were collected for morphometric and histomorphometry analyses. No difference was observed in relation to the total length of seminiferous tubules (G1=3239.9±333,3m; G2=2989.4±171,7m and G3=3059.5±254.9m), population of Sertoli cell (G1=4.7±0.5x10(9); G2=4.3±0.3x10(9) and G3=4.7±0.5x10(9)), population (G1=31.6±5.58x10(9); G2=27.3±4.0x10(9) and G3=26.4±3.9x10(9)) and volume of Leydig cells (G1=1289.3±182.6µm³; G2=1179.1±85.4µm³ and G3=1133.3±37.8µm³) and sperm production (G1=5.9±0.9x10(9); G2=5.6±0.6x10(9) and G3=5.1±0.3x10(9)). Protein levels were sufficient to maintain spermatogenesis in different experimental groups. It can be concluded that the magnitude of variation in levels of protein used in different stages of development was not sufficient to promote significant changes in testicular development and spermatogenesis process in adult animals.


Avaliou-se o efeito do teor de proteína da dieta sobre características testiculares em suínos, utilizando-se 21 suínos da raça Dalland, distribuídos aleatoriamente em três grupos. Os animais do G2 e G3 receberam dieta com porcentagens de proteína bruta de 15% para mais e para menos, respectivamente, em relação ao G1 (controle). Aos 210 dias de idade, os animais foram orquiectomizados e os testículos e epidídimos foram coletados para análises morfométricas e histomorfométricas. Observou-se efeito significativo da porcentagem de proteína sobre o comprimento e a largura dos testículos, e nenhuma diferença foi identificada em relação ao comprimento total dos túbulos seminíferos (G1=3239,9±333,3m; G2=2989,4±171,7m e G3=3059,5±254,9m), à população de células de Sertoli (G1=4,7±0,5x10(9); G2=4,3±0,3 x10(9) e G3=4,7±0,5x10(9)), à população (G1=31,6±5,58x10(9); G2=27,3±4,0x10(9) e G3=26,4±3,9x10(9)) e ao volume das células de Leydig (G1=1289,3±182,6µm³; G2=1179,1±85,4µm³ e G3=1133,3±37,8µm³) e à produção espermática (G1=5,9±0,9 x10(9); G2=5,6±0,6x10(9) e G3=5,1±0,3x10(9)). Os percentuais de proteína foram suficientes para a manutenção da espermatogênese nos diferentes grupos. Pode-se concluir que a magnitude da variação dos níveis de proteína usada em diferentes fases do desenvolvimento não foi suficiente para promover alterações significativas no desenvolvimento testicular e no processo espermatogênico em animais adultos.


Subject(s)
Animals , Swine/anatomy & histology , Testis/anatomy & histology , Sertoli Cells , Testosterone
12.
Acta sci., Biol. sci ; 35(1): 115-122, Jan.-Mar. 2013. tab
Article in English | LILACS | ID: biblio-859551

ABSTRACT

In current assay the serotoninergic system in newly-born Wistar rats underwent pharmacological modification by fluoxetine, a selective serotonin reuptake inhibitor (SSRI), to investigate its repercussion on testicular parameters in adult animals. Thirty animals were distributed according to treatment: control animals (n = 6), animals treated with 1 mg kg-1 (n = 6), 5 mg kg-1 (n = 6), 10 mg kg-1 (n = 6) and 20 mg kg-1 (n = 6) of fluoxetine (IP). When 150 days old, the animals were anesthetized and perfused intra-cardiacally with fixative solution. Testes were routinely processed for inclusion in plastic resin (methacrylate glycol). Further, 4 µm-thick histological sections were stained with toluidine blue/sodium borate 1% and analyzed histometrically. Pharmacological intervention on the serotoninergic system during the postnatal period of the testes development in Wistar rats with fluoxetine chlorohydrate reduced parameters, such as testicular weight, testis liquid weight and seminiferous tubules diameter. However, testicular parameters, such as daily sperm production (DSP), spermatogenesis efficiency (DSP/g/testis) and cell population in stage VII of adult animals, were not influenced by fluoxetine chlorohydrate usage during neonatal period. Results show that administration of fluoxetine during 21 days after birth may induce adverse changes in the spermatogenesis of adult rats.


No presente trabalho, o sistema serotoninérgico de ratos Wistar recém-nascidos foi farmacologicamente modificado por um inibidor seletivo de recaptação da serotonina, fluoxetina, com o objetivo de observar sua repercussão nos parâmetros testiculares em ratos adultos. Trinta animais foram distribuídos de acordo com o tratamento: controle (n = 6), tratado com 1 mg kg-1 (n = 6), 5 mg kg-1 (n = 6), 10 mg kg-1 (n = 6) e 20 mg kg-1 (n = 6) de fluoxetina. Aos 150 dias de vida, os animais foram anestesiados e perfundidos intracardiacamente com solução fixadora. Os testículos foram removidos e processados para inclusão em resina plástica (glicol metacrilato). Cortes histológicos com 4 µm de espessura foram corados por azul de toluidina/borato de sódio 1% e analisados histometricamente. O tratamento com fluoxetina reduziu nos parâmetros de peso testicular líquido e bruto, bem como no diâmetro dos túbulos seminíferos. Entretanto, os parâmetros testiculares de produção espermática diária (PED), eficiência espermática (PED/g/testículo) e população de células germinativas no estágio VII não estavam alteradas pelo tratamento com fluoxetina. Em conclusão, a administração de fluoxetina durante 21 dias após o nascimento pode induzir efeitos adversos na espermatogênese de ratos adultos.


Subject(s)
Rats , Fluoxetine , Sertoli Cells , Spermatogenesis
13.
Rev. colomb. cancerol ; 15(1): 40-45, mar. 2011. tab, graf
Article in Spanish | LILACS | ID: lil-664814

ABSTRACT

El tumor de células de Sertoli calcificante de células grandes (TCSCCG) es una neoplasia testicular muy rara, con 60 casos descritos en todo el mundo; en Latinoamérica y Colombia son escasos los casos reportados en la literatura. Esta neoplasia se origina en el estroma gonadal/cordones sexuales, y, en general, tiende a mostrar un comportamiento biológico benigno. Se piensa que estos tumores tienen características de presentación diferente, dependiendo de si se presentan en el contexto de un síndrome congénito complejo, en cuyo caso tienden a ser bilaterales y multifocales, en contraposición a los no asociados a síndromes, que tienden a ser unilaterales y focales. El estudio de inmunohistoquímica es fundamental para el diagnóstico; en especial, para diferenciar estos tumores de neoplasias germinales. Se reportan en esta investigación tres casos de esta neoplasia, uno de ellos asociado al síndrome de Peutz-Jeghers, y haciendo énfasis en los criterios histológicos para definir malignidad.


The large cell calcifying Sertoli cell tumor (LCCSCT) is a very rare testicular tumor with 60 cases reported worldwide; in Latin America and Colombia, few cases are reported in the literature. This neoplasm originates in the gonadal stromal/sex cord, and, in general, tends to display benign biological behavior. It is thought that these tumors may display differing characteristics: depending upon whether they occur in the context of a complex congenital syndrome, in which case they tend to be bilateral and multifocal; as opposed to those not associated with syndromes, which tend to be unilateral and focal. Immunohistochemical study is essential for diagnosis, in particular, to differentiate these tumors from germ cell tumors. This study reports on three cases of this tumor--one associated with Peutz-Jeghers Syndrome—and emphasis is given to histological criteria to define malignancy.


Subject(s)
Humans , Male , Adolescent , Young Adult , Calcinosis , Peutz-Jeghers Syndrome , Sertoli Cell Tumor , Sex Cord-Gonadal Stromal Tumors , Testicular Neoplasms , Colombia , Immunohistochemistry
14.
Arq. bras. med. vet. zootec ; 61(1): 80-87, fev. 2009. tab
Article in Portuguese | LILACS | ID: lil-513027

ABSTRACT

Utilizaram-se doses crescentes de pentoxifilina em ratos Wistar neonatos visando aumentar a produção espermática em animais adultos. Trinta e sete animais foram distribuídos de acordo com os tratamentos: não tratados (n=10) e tratados com 1mg/kg (n=10), 5mg/kg (n=9) e 10mg/kg (n=8) de pentoxifilina (IP). Aos 90 dias, os animais foram anestesiados e perfundidos intracardiacamente com solução fixadora. Os testículos foram processados rotineiramente para inclusão em resina plástica à base de glicol metacrilato. Cortes histológicos de 4µm de espessura foram corados em azul de toluidina/borato de sódio a 1 por cento e analisados histometricamente. O número de células de Sertoli por secção transversal diminuiu nos grupos tratados com 5mg/kg e 10mg/kg em relação aos grupos controle e tratado com 1mg/kg. O índice de células de Sertoli aumentou nos animais tratados com 5mg/kg em comparação aos do grupo-controle. A utilização da pentoxifilina não foi capaz de induzir aumento na população das células de Sertoli e produção espermática em ratos adultos.


Increasing doses of pentoxifylline were administrated to newborn Wistar rats in order to augment Sertoli cell number and sperm production in the adult rats. Thirty-seven neonate Wistar rats were distributed in four groups: control (n=10) and treated with 1mg/kg (n=10), 5mg/kg (n=9), and 10mg/kg (n=8) of pentoxifylline. At 90 days, the animals were submitted to anesthesia and intracardiac perfusion. Testes were colleted and routinely processed for inclusion in plastic resin with glycol methacrylate. Histological sections (4µm) were stained in toluidine blue/sodium borate (1 percent) and analyzed. Number of Sertoli cell per transversal section of seminiferous tubule had significant reduction in the groups treated with 5mg/kg and 10mg/kg of pentoxifylline as compared to control and the group that received 1mg/kg (P<0.05). The Sertoli cell index significantly increased in the group treated with 5mg/kg compared to control group. Pentoxifylline did not cause increase in the number of Sertoli cells and daily sperm production in adult male rats.


Subject(s)
Animals , Antiviral Agents/adverse effects , Pentoxifylline/adverse effects , Rats, Wistar , Sertoli Cells , Spermatozoa
15.
Int. j. morphol ; 26(1): 51-62, 2008. ilus, tab
Article in English | LILACS | ID: lil-558592

ABSTRACT

The aim of the present study was to test the hypothesis that the application of fluoxetine a highly selective serotonin reuptake inhibitor (SSRI) ¡ in rats during the suckling period induces changes in testicular development. Groups of newborn male rats were randomly assigned with different doses of fluoxetine 24 hours after birth. Each litter stayed with its respective mother during 21 days. Body weight (BW) was measured daily from the 1st -21st day to calculate daily doses of fluoxetine. 5 mg (T1), 10 mg (T2) 20 mg (T3) or deionized water, were injected intraperitoneally. On the 21st day, animals were heparinized, anesthetized and blood was collected by cardiac puncture to determine by radioimmunoassay the follicle stimulating hormone (FSH) levels. Testis were removed, weighed, and processed for morphometric analysis. Fluoxetine groups presented decreased body and testicular weight when compared with the control group on the 21st day. Our findings show that the manipulation of the serotoninergic system with fluoxetine during the critical period of testicular development alters the Sertoli cell population and all testicular parameters related to this cell.


El propósito del presente estudio fue probar la hipótesis que el uso de fluoxetina - un inhibidor altamente selectivo de la serotonina (SSRI) - induce cambios en el desarrollo testicular de ratas durante el período de amamantamiento. Los grupos de ratas macho recién nacidas fueron asignados aleatoriamente con diversas dosis del fluoxetina, 24 horas después del nacimiento. Cada cría permanecía con su madre respectiva durante 21 días. El peso corporal (BW) fue medido diariamente desde el 21día 1 al 21, para calcular las dosis diarias del fluoxetina. 5 mg (T1), 10 mg (T2) y 20 (T3) o agua desionizada fueron inyectados intraperitonealmente. En el día 21, los animales fueron tratados con heparina, anestesiados y la sangre fue recogida por punción cardiaca para determinar por radioinmunoanálisis los niveles de la hormona folículo-estimulante (FSH). Los testículos fueron retirados, pesados y procesados para el análisis morfométrico. Los grupos tratados con fluoxetina presentaron disminución del tamaño y peso testiculares, en comparación con el grupo control día 21. Los resultados demuestran que la manipulación del sistema serotoninérgico con fluoxetina durante el período crítico del desarrollo testicular, altera la población de células de Sertoli y todos los parámetros testiculares relacionados con este tipo celular.


Subject(s)
Animals , Male , Rats , Sertoli Cells , Fluoxetine/pharmacology , Selective Serotonin Reuptake Inhibitors/pharmacology , Testis , Breast Feeding , Fluoxetine/administration & dosage , Selective Serotonin Reuptake Inhibitors/administration & dosage , Rats, Wistar , Time Factors , Testis/growth & development
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