Apoptosis in the digestive tract of herbivorous Rana pipiens larvae and carnivorous Ceratophrys ornata larvae: An immunohistochemical study

2011 ◽  
Vol 273 (1) ◽  
pp. 103-108 ◽  
Author(s):  
Jane C. Kaltenbach ◽  
Anne E. Fry ◽  
Katherine M. Colpitts ◽  
Ellen E. Faszewski
Keyword(s):  
Digestive Tract ◽  
Rana Pipiens ◽  
Immunohistochemical Study

Neuroendocrine system of the digestive tract in Rhamdia quelen juvenile: An immunohistochemical study

2012 ◽  
Vol 44 (4) ◽  
pp. 220-226 ◽  
Author(s):  
D.R. Hernández ◽  
F.A. Vigliano ◽  
S. Sánchez ◽  
R. Bermúdez ◽  
H.A. Domitrovic ◽  
...  
Keyword(s):  
Digestive Tract ◽  
Immunohistochemical Study ◽  
Neuroendocrine System ◽  
Rhamdia Quelen

A comparative immunohistochemical study of endocrine cells in the digestive tract of two frugivorous bats: Artibeus cinerius and Sturnira lilium

2008 ◽  
Vol 110 (2) ◽  
pp. 134-142 ◽  
Author(s):  
Clarice Machado Dos Santos ◽  
Aparecida Alves Do Nascimento ◽  
Adriano Lucio Peracchi ◽  
Daniela Dias ◽  
Thatiana Paz Ribeiro ◽  
...  
Keyword(s):  
Digestive Tract ◽  
Endocrine Cells ◽  
Immunohistochemical Study

scholarly journals An immunohistochemical study of endocrine cells in the digestive tract of Varanus salvator (Reptile: Varanidae)

2020 ◽  
Vol 13 (9) ◽  
pp. 1737-1742
Author(s):  
Mahfud Mahfud ◽  
Ernawati Ernawati ◽  
Nur R. Adawiyah Mahmud ◽  
Teguh Budipitojo ◽  
Hery Wijayanto
Keyword(s):  
Distribution Pattern ◽  
Digestive Tract ◽  
Endocrine Cells ◽  
Immunohistochemical Study ◽  
Cell Types ◽  
Color Intensity ◽  
Pattern Frequency ◽  
Caudal Portion ◽  
Varanus Salvator ◽  
Abc Method

Aim: The aim of the study was to identify the distribution pattern and frequency of endocrine cell types in the digestive tract of Varanus salvator. Materials and Methods: The presence of endocrine cells (glucagon, somatostatin, and serotonin) in the digestive tract (esophagus, stomach, and intestine) was detected using the avidin-biotin complex (ABC) method. Results: Three types of endocrine cells immunoreactive to antisera glucagon, serotonin, and somatostatin were found in the caudal portion of the small and large intestines but were not observed in the esophagus, stomach, and caput and medial sections of the small intestine. Endocrine cells distributed in the digestive tract of V. salvator vary in color intensity, from weak to sharp, in response to the primer antibody. Conclusion: Endocrine cells in the digestive tract that is immunoreactive to glucagon, somatostatin, and serotonin are those found in the caudal portion of the small and large intestines. They are varied in distribution pattern, frequency, and color intensity.

scholarly journals Research on the diagnosis of peritoneal micrometastases in tumors of the subdiaphragmatic digestive tract

2012 ◽  
Vol 18 (2) ◽  
pp. 86-92
Author(s):  
N. Ciufu ◽  
Alina Vieru ◽  
D.O. Costea
Keyword(s):  
Peritoneal Carcinomatosis ◽  
Digestive Tract ◽  
Immunohistochemical Study ◽  
Early Stage ◽  
Pcr Analysis ◽  
Histopathological Study ◽  
Cytological Analysis ◽  
Adequate Treatment ◽  
Histopathological Type

AbstractThis presentation is aimed at analyzing the possibility of detecting the peritoneal micrometastases through multiple peritoneal biopsies to the patients with tumors of the subdiaphragmatic digestive tract.Nowadays, detection of the micrometastases is performed indirectly through cytological analysis and / PCR analysis of the peritoneal liquid, through the histopathological study of the peritoneal fragments intraoperatively collected and the immunohistochemical study.This presentation is aimed at analyzing the possibility of detecting the peritoneal micrometastases through multiple peritoneal biopsies and to correlate this with various factors such us: staging neoplasia, the affected organ, histopathological type, tumoral grading.Inclusion of the patients that find themselves in the early stage of peritoneal carcinomatosis - of peritoneal micrometastases - would allow for the application of an adequate treatment and could greatly increase the patient’s survival chances

Comparative Morphology of Intercellular Bridges Between Developing Germ Cells of the Ovary

1970 ◽  
Vol 28 ◽  
pp. 328-329
Author(s):  
J. R. Ruby ◽  
R. F. Dyer ◽  
R. G. Skalko ◽  
R. F. Gasser ◽  
E. P. Volpe
Keyword(s):  
Germ Cells ◽  
Rana Pipiens ◽  
Comparative Morphology ◽  
Dense Material ◽  
Individual Species ◽  
Microscope Examination ◽  
Electron Dense Material ◽  
Intercellular Bridges ◽  
Cytoplasmic Side ◽  
Intercellular Connections

An electron microscope examination of fetal ovaries has revealed that developing germ cells are connected by intercellular bridges. In this investigation several species have been studied including human, mouse, chicken, and tadpole (Rana pipiens). These studies demonstrate that intercellular connections are similar in morphology regardless of the species.Basically, all bridges are characterized by a band of electron-dense material on the cytoplasmic side of the tri-laminar membrane surrounding the connection (Fig.l). This membrane is continuous with the plasma membrane of the conjoined cells. The dense material, however, never extends beyond the limits of the bridge. Variations in the configuration of intercellular connections were noted in all ovaries studied. However, the bridges in each individual species usually exhibits one structural characteristic seldom found in the others. For example, bridges in the human ovary very often have large blebs projecting from the lateral borders whereas the sides of the connections in the mouse gonad merely demonstrate a slight convexity.

Sign in / Sign up

Export Citation Format

Share Document