|
|
|
| Registros recuperados: 55 | |
|
|
| Verma,Ranjana; Mishra,Sabita; Kaul,Jagat Mohini. |
| Placenta is the most accurate record of the infant prenatal experience. After delivery if the placenta is examined minutely, it provides much insight into the prenatal health of the baby and the mother. In diabetic pregnancy, placental weight is higher in comparison to normal pregnancy. To study the cellular differences that might contribute to larger size of placenta, light microscopic analysis was performed on 25 full term placentas, out of which 20 were of Gestational diabetes mellitus (12 controlled on diet, 8 controlled on insulin) and 5 control group. Tissue sections were processed and analyzed. Birth weight of neonate, placental weight, vascular pattern of chorionic blood vessels and site of attachment of umbilical cord were recorded. In the... |
| Tipo: Journal article |
Palavras-chave: Placenta; Gross; Gestational diabetes; Microscopy. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100038 |
| |
|
| |
|
|
| Wolff,Daniel; Villa,Pablo; Neirreitter,Alejandra; Ruibal,Cecilia; Ugon,Gustavo Armand; Salgado,Guillermo; Cantín,Mario. |
| Las técnicas de fijación y conservación anatómica son realizadas habitualmente con soluciones que contienen formol, dado su bajo costo. Estas tienen varias desventajas como el olor irritante, rigidez, cambios de coloración de las estructuras, así como toxicidad con potencial cancerígeno, teratogénico y mutagénico para quien lo manipula. Por esto, es deseable utilizar soluciones sin formol. El objetivo de este trabajo fue comparar 2 métodos de conservación cadavérica, uno con formol (solución de Montevideo) y otro sin formol (método de Prives) utilizando la placenta humana como órgano experimental, evaluando sus parámetros macroscópicos. Se utilizaron 46 placentas humanas de partos normales y gestación a término. Las placentas fueron separadas en dos grupos... |
| Tipo: Journal article |
Palavras-chave: Placenta; Técnicas anatómicas; Solución fijadora; Formol; Libre de formol. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200013 |
| |
|
|
| Márquez-Orozco,María Cristina; Gasca-Ramírez,María Verónica; de la Fuente-Juárez,Graciela; Márquez-Orozco,Amalia. |
| Diazepam (DZ) is a benzodiazepine that belongs to the group of minor tranquilizers with myo-relaxing and anticonvulsant properties. DZ and its metabolites cross the placental barrier in human, monkey, hamster, and mouse, and accumulate in the placenta. Our aim was to investigate, through histological techniques, and semifine sections if DZ induces morphological changes in the placenta. Twenty female mice of the ICR strain were distributed randomly in two groups. One group (DZ) was treated from days 6 to 17 of gestation with a single daily subcutaneous (sc) dose of DZ of 2.7 mg/kg/ (bw); the second, control group (C) was treated with saline solution. All females (10 DZ and 10 C) were killed by decapitation. Placentas were extracted and fixed in... |
| Tipo: Journal article |
Palavras-chave: Benzodiazepine; Diazepam; Mouse; Placenta; Histology. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200007 |
| |
|
|
| Kosif,Rengin; Akta,Gülhan; Öztekin,Aynure. |
| Aloe barbadensis is the most widely used both commercially and therapeutic properties. It has been used for an array of ailments since ancient times as a medicinal plant. There are more than 360 different species of Aloe. Its products have been used in health foods for medical and preservative purposes. The objective of this study was to search the effects of Aloe barbadensis on the rat's placenta. Gel form of Aloe barbadensis is used in the study. It is commercial, preserved but otherwise untreated form of Aloe Barbadensis gel capsul. Female Wistar Albino rats were divided into three groups. Placenta specimens from each groups were processed for the microscopic examination. Trophoblastic giant cells and spongiotrophoblasts were decreased in number after... |
| Tipo: Journal article |
Palavras-chave: Aloe barbadensis; Effec; Placenta; Microscopic examination. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200005 |
| |
|
|
| Sanchis,E. G; Cristofolini,A. L; Taglialegna,A; Merkis,C. I. |
| The molecules that constitute the extracellular matrix are important in several functions related to tissue support and cell-cell, cell-extracellular matrix interaction. Among the macromolecules that constitute the mentioned matrix we find osteopontin, fibrinogen and collagen. The present study was undertaken to analyze the rol of osteopontin, fibrinogen and collagen in uterine-placental interface during normal porcine gestation. Uterine and placental tissues from crossbred gilts of 30 (n=5), 60 (n=5), 70 (n=5) and 114 (at term, n=5) days of gestation were used. Macroscopic analysis of the embryos/fetuses allowed us to determine their gestational age by means of the crown-rump lenght. Haematoxylin-Eosin and Masson's Trichrome dyes along with light... |
| Tipo: Journal article |
Palavras-chave: Pig; Placenta; Osteopontin; Fibrinogen; Collagen. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400062 |
| |
|
|
| Prieto,Ruth; Smok,Carolina; Rojas,Mariana. |
| Las Tics son hoy en día la metodología de vanguardia utilizada en todos los niveles de la enseñanza, por ello diseñamos un blogspot sobre Placenta Comparada. Los visitantes encontraron contenidos e imágenes originales en las diferentes etapas del desarrollo. Se utilizaron 10 placentas humanas y 14 de animales para las imágenes y material educativo del blog, éstas se fotografiaron macroscópica y mesoscópicamente, posteriormente se procesaron mediante técnicas histológicas. Para la evaluación de las visitas al blogs se utilizaron parámetros estadísticos pertenecientes al formato blogs, entre los meses de mayo a diciembre de 2010 y una encuesta de opinión en relación a los item: fotografía, diseño del blog y video de alumbramiento. La estadística del blog... |
| Tipo: Journal article |
Palavras-chave: Placenta; Placenta comparada; Alumbramiento. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200022 |
| |
|
| |
|
|
| Zaidi,M. Tariq; Arshad,Mohd; Vasenwala,S. M; Faruqi,Nafis A; Khan,Aijaz A; Khan,Sumbul. |
| The intra-uterine existence of foetus is dependent on placenta, a major organ of nutrition and homeostasis.The present study was carried out to compare morphometric and histological changes in preterm and term human placentas. Eighty placentas collected from Department of Obstetrics and Gynecology, JNMCH, AMU, Aligarh, were divided into group first of preterm placentas up to 36 weeks (n =30) and second group of full term placentas i.e. 37 to 40 weeks ( n = 50) respectively. The samples were fixed in 10% formol-saline solution. The gross morphological variables of placentas were studied. There was a significant increase in the placental weight, decidual area and umbilical cord diameter of term placenta as compared to that of the preterm ones. From each... |
| Tipo: Journal article |
Palavras-chave: Placenta; Syncytial knot; Microvilli; Hofbauer cells; Syncytial bud. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200007 |
| |
|
|
| Accioly Lins Amorim,Marleyne José Afonso; Amorim Júnior,Adelmar Afonso de; Messias,Júlio Brando; Silva Júnior,Valdemiro Amaro de; Melo Berinson,Karina de. |
| Sloth plows euterians mammals, belonging to the order Edentata, sub-order Xenarthra, infra-order Tardigrada, family Bradipodidae, which comprehend three specimen, Bradypus tridadctylus, Bradypus variegates and Bradypus torquatus. They plows few work found in the literature related to the anatomy of the placenta of this specimen. The material used in this research was consisted of 3 placentas of Bradypus variegatus of adult females (Briton, 1941) original of the Forests of the City of Recife and Zone of the Forest of the State of Pernambuco with average weight 4,2 Kg. Placentas were fixed in buffered glutaraldehyed 4%, pH 7,4, 0,1M and processed goes optical microscopy. Macroscopically was observed that the placenta of the sloth is composed of discoidal... |
| Tipo: Journal article |
Palavras-chave: Placenta; Sloth; Anatomy; Bradypus variegatus. |
| Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000100002 |
| |
|
| |
|
|
| Kazemi,Masoomeh; Tekieh,Elaheh; Golabi,Sahar; Sahraei,Hedayat. |
| Based on previous studies, a variety of bioenvironmental elements including inappropriate nutrition, diseases, infections, stressors, and medications are involved in epigenetic changes. Drug abuse is one of the most important causes of epigenetic changes and a concern in today's world. Studies have shown that morphine use by pregnant mothers causes several disorders in mothers in addition to transferring abnormalities to the next generation (placenta and embryo). Epigenetic factors such as morphine cause changes in gene expression in placenta as the first embryonic defense barrier. Because placenta does all the nutritional exchanges between mother's and embryo's blood, placental health guarantees normal embryonic development. Many studies have been... |
| Tipo: Journal article |
Palavras-chave: Development; Morphine; Embryo; Epigenetic; Pregnancy; Placenta. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100036 |
| |
|
|
| Rodero,Ademir B; Batigália,Fernando; Azoubel,Reinaldo; Moura,Arianne Assis; Rodero,Lucas de Souza; Silveira Jr,Landulfo. |
| Sucralose is a sweetener of general use in over three thousand products (beverages, foods and medical diets), with utilization currently permitted for the general population in more than 80 countries, including for women of reproductive age. There is little information on the safe use of sucralose, and experimental studies have suggested that the administration of some sweeteners, by diverse routes, retards not only fetal and placental development but also umbilical cord size. The present study aimed to estimate the fetal and placental weights and umbilical-cord length in fetuses from rat dams, after ingestion and non-ingestion of sucralose. In the treated group (5 dams), sucralose was administered (via gavage) at the dose of 30 mg/kg/day, from the 10th to... |
| Tipo: Journal article |
Palavras-chave: Sucralose; Fetus; Placenta; Umbilical cord; Weight. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000300025 |
| |
|
|
| Sala,Miguel Ángel; Lopes,Ruberval Armando; Abrahão,Ana Amelia Carraro; Meneguette,Cicero; Albuquerque,Sérgio de; Ribeiro,Rosa Domingues. |
| El objetivo de este trabajo fue evaluar cariometricamente las alteraciones causadas por diferentes cepas de T. cruzi en la placenta del ratón. Ratones hembras de 60 días, grávidas, fueron inoculadas, intraperitonealmente, con 2 x 10(5) tripomastigotes sanguíneos de las cepas colombiana, Y, Solivia o RC del T. cruzi. Fueron observadas claras diferencias en las alteraciones cariométricas de las células trofoblásticas gigantes y de las células trofoblásticas de la zona esponjosa. Los resultados demostraron que las cepas colombiana y RC causan alteraciones tanto en las células trofoblásticas gigantes como en las células del trofoblasto esponjoso, mientras que las cepas Y y Bolivia provocan alteraciones solamente en las células trofoblásticas gigantes. Es... |
| Tipo: Journal article |
Palavras-chave: Enfermedad de Chagas Experimental; Trypanosoma cruzi; Ratón; Placenta; Cariometría. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300018 |
| |
|
|
| Roa,Ignacio; Smok S,Carolina; Prieto G,Ruth. |
| La placenta, anexo embrionario propio de los mamíferos placentados, imprescindible para la supervivencia embriofetal, está formada por la zona más superficial del endometrio y el corion, asociado con el saco vitelino o el alantoides, dependiendo de la especie. La placenta provee el intercambio gaseoso y nutricio entre la madre y el feto, secreta hormonas y posee propiedades inmunosupresoras. Existen diferentes criterios para clasificar la placenta; de acuerdo a la distribución de las vellosidades coriales de la placenta: difusa, cotiledonaria, zonaria y discoidal; de acuerdo a las características histológicas de la placenta: epiteliocorial, sindesmocorial, endoteliocorial y hemocorial. |
| Tipo: Journal article |
Palavras-chave: Placenta; Morfología comparada. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400036 |
| |
|
|
| Phuapittayalert,Laorrat; Norkaew,Thongchai; Supanpaiboon,Wisa; Chuenchoojit,Supaporn; Hipkeao,Wiphawi; Swaddiwudhipong,Witaya; Sakulsak,Natthiya. |
| A toxic metal, cadmium (Cd), can accumulate in human organs. Placenta is usually used as indicator organ for Cd exposure. Therefore, we aim to investigate the different of placental morphology between the low- and high-Cd accumulated placentas. The samples were collected from 14 pregnant women who resided in low-Cd contaminated (L-Cd group) and high-Cd contaminated (H-Cd group) areas. The concentrations of Cd in blood (B-Cd), urine (U-Cd) and placentas (P-Cd) were measured by ICP-MS and AAS. The morphological appearance of placentas was examined by using routine paraffin section and H & E staining. The results showed that levels of B-Cd, U-Cd and P-Cd were significantly higher in H-Cd group than in L-Cd group (p= 0.001). Moreover, the B-Cd was... |
| Tipo: Journal article |
Palavras-chave: Cadmium; Placenta; Syncytial knot; Fibrinoid materials. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400011 |
| |
|
|
| Prieto Gómez,Ruth; Matamala,Fernando; Rojas,Mariana. |
| El metabolismo placentario, el intercambio de sustancias y la producción de hormonas son funciones vitales de la placenta para mantener y promover el desarrollo normal del feto. Existen factores de riesgo que alteran este patrón en el caso del retardo del crecimiento intrauterino, cuyo resultado será un recién nacido (RN) pequeño para la edad gestacional (PEG) que presentará una mayor morbilidad, crecimiento físico e intelectual comprometido y una mayor probabilidad de desarrollar durante la vida adulta diferentes patologías. Los objetivos del presente trabajo son: 1. Reconocer las diferencias en los parámetros morfométricos, como el área de las vellosidades, el área de los vasos, el número de vasos y el área del sinciciotrofoblasto de las placentas de PEG... |
| Tipo: Journal article |
Palavras-chave: Placenta; Recién nacido; Pequeño para la edad gestacional. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300017 |
| |
|
|
| de Matos,Marcelo Alexandre; Martins,Alex Tadeu; Azoubel,Reinaldo. |
| To evaluate the effects of sodium cyclamate on the rat placenta by its administration in the period of embryogenesis. The sodium cyclamate was administered by intraperitoneal route in rats of the treated group at the dose of 60 mg/Kg, from the tenth to fourteenth day of gestation, while the equivalent volume of saline solution was given to the control group, by the same route. On the twentieth day of pregnancy, 10 fetuses (5 from each group) were chosen at random for study. The technique of cariometry was utilized for evaluation of nuclear parameters of cells in deciduous and spongy layers, and of chorionic villi in the rat placenta. The weights of treated fetuses and their placentas were less than those of the control group, while umbilical-cord length in... |
| Tipo: Journal article |
Palavras-chave: Sodium cyclamate; Placenta; Cariometry. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000300001 |
| |
|
| |
|
|
| Coniglio,MV; Merkis,CI; Diaz,T; Romanini,MC; Turiello,MP; Bozzo,AA; Cots,DS; Rolando,AN. |
| El objetivo fue estudiar los efectos de la restricción alimentaria sobre la angiogénesis placentaria en cabras Anglo nubian. Se utilizaron 19 placentas a término de tres grupos de estudios: control, restringido y restringido con monensina. Los cortes placentarios se procesaron con técnicas histológicas de rutina e inmunomarcaron con anticuerpo anti-VEGF y se cuantificó el área y perímetro de los vasos sanguíneos. El perímetro de los vasos de los grupos restringidos fue mayor estadísticamente con respecto al control. Mientras que el área de los mismos no mostró diferencias estadísticamente significativas en ninguno de los tres grupos. El VEGF se localizó en las células epiteliales trofoblásticas de los grupos control y restringido, además en éstos últimos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Placenta; Angiogénesis; VEGF; Cabra. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-34982016000100009 |
| |
| Registros recuperados: 55 | |
|
|
|
