scholarly journals Ventromedial neurosecretory neurons (type A) in the suboesophageal ganglion of Morimus funereus Muls. (1869) during postembryonic development

2004 ◽  
Vol 56 (1-2) ◽  
pp. 3P-4P
Author(s):  
Vera Nenadovic ◽  
Marija Mrdakovic-Mitic ◽  
Larisa Ilijin
Keyword(s):  
Type A ◽  
Postembryonic Development ◽  
Suboesophageal Ganglion ◽  
Neurosecretory Neurons ◽  
Morimus Funereus

scholarly journals Activity of ventromedial neurosecretory neurons of the subesophageal ganglion (type A) in Morimus funereus Muls. during metamorphosis

2006 ◽  
Vol 58 (1) ◽  
pp. 1P-2P ◽  
Author(s):  
Vera Nenadovic ◽  
Marija Mrdakovic ◽  
Vesna Peric-Mataruga ◽  
Jelica Lazarevic ◽  
Milena Vlahovic
Keyword(s):  
Type A ◽  
Subesophageal Ganglion ◽  
Neurosecretory Neurons ◽  
Morimus Funereus

scholarly journals The response of medial neurosecretory neurons to temperature stress in Morimus funereus larvae

2004 ◽  
Vol 56 (3-4) ◽  
pp. 19P-20P ◽  
Author(s):  
Marija Mrdakovic-Mitic ◽  
Larisa Ilijin ◽  
Milena Vlahovic ◽  
Milena Jankovic-Tomanic ◽  
Vesna Peric-Mataruga ◽  
...  
Keyword(s):  
Temperature Stress ◽  
Neurosecretory Neurons ◽  
Morimus Funereus

scholarly journals The effect of heat stress on the activity of A1 and A2 neurosecretory neurons of Morimus funereus (Coleoptera: Cerambycidae) larvae

2001 ◽  
Vol 98 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Snezana LEKOVIC ◽  
Jelica LAZAREVIC ◽  
Vera NENADOVIC ◽  
Jelisaveta IVANOVIC
Keyword(s):  
Heat Stress ◽  
Neurosecretory Neurons ◽  
Morimus Funereus

scholarly journals Activity of peptidergic neurosecretory neurons from the pars intercerebralis in Morimus funereus larvae during the intermolt period

2006 ◽  
Vol 58 (2) ◽  
pp. 13P-14P ◽  
Author(s):  
Vera Nenadovic ◽  
Marija Mrdakovic ◽  
Jelica Lazarevic ◽  
Vesna Peric-Mataruga
Keyword(s):  
Pars Intercerebralis ◽  
Intermolt Period ◽  
Neurosecretory Neurons ◽  
Morimus Funereus

scholarly journals Activity of lateral peptidergic neurosecretory neurons of the Morimus funereus protocerebrum during the intermolt period

2006 ◽  
Vol 58 (1) ◽  
pp. 3P-4P ◽  
Author(s):  
Vera Nenadovic ◽  
Marija Mrdakovic ◽  
Jelica Lazarevic ◽  
Vesna Peric-Mataruga ◽  
Larisa Ilijin
Keyword(s):  
Intermolt Period ◽  
Neurosecretory Neurons ◽  
Morimus Funereus

scholarly journals Effects of thermal stress on activity of corpora allata and dorsolateral neurosecretory neurons in Morimus funereus larvae

2005 ◽  
Vol 57 (2) ◽  
pp. 83-92 ◽  
Author(s):  
Marija Mrdakovic ◽  
Larisa Ilijin ◽  
Milena Jankovic-Tomanic ◽  
Milena Vlahovic ◽  
Zlatko Prolic ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Natural Population ◽  
Environmental Temperature ◽  
Cell Number ◽  
Corpora Allata ◽  
Neurosecretory Neurons ◽  
Number Increase ◽  
Different Temperatures ◽  
Morimus Funereus ◽  
L1 And L2

The effects of different temperatures (23?C and 8?C) on activity of corpora allata (CA) and dorsolateral (L1, L2) protocerebral neurosecretory neurons were investigated in Morimus funereus Mulsant (1863) larvae collected from a natural population during March. Activity of CA was revealed by monitoring of CA volume and cell number. Increase of CA volume after two day exposure to both temperatures was shown to be the result of increase in cell number. Activity of CA was higher at 23?C than 8?C. Activity of L1 and L2 neurosecretory neurons was inhibited at both temperatures. Neurosecretory neurons were more sensitive to temperature of 23?C than 8?C. It can be supposed that dorsolateral neurosecretory neurons synthesize neurohormones that affect CA activity, depending on environmental temperature.

Neuron-glia relationship during the early postembryonic development of the nervous system in some oligochaetes

1978 ◽  
Vol 36 (2) ◽  
pp. 600-601
Author(s):  
Wiktor Djaczenko ◽  
Carmen Calenda Cimmino
Keyword(s):  
Nervous System ◽  
Glial Cells ◽  
Early Period ◽  
Postembryonic Development ◽  
Ruthenium Red ◽  
The Body ◽  
Tubifex Tubifex ◽  
Growth Stages ◽  
Cell Processes ◽  
Cytoplasmic Processes

The simplicity of the developing nervous system of oligochaetes makes of it an excellent model for the study of the relationships between glia and neurons. In the present communication we describe the relationships between glia and neurons in the early periods of post-embryonic development in some species of oligochaetes.Tubifex tubifex (Mull. ) and Octolasium complanatum (Dugès) specimens starting from 0. 3 mm of body length were collected from laboratory cultures divided into three groups each group fixed separately by one of the following methods: (a) 4% glutaraldehyde and 1% acrolein fixation followed by osmium tetroxide, (b) TAPO technique, (c) ruthenium red method.Our observations concern the early period of the postembryonic development of the nervous system in oligochaetes. During this period neurons occupy fixed positions in the body the only observable change being the increase in volume of their perikaryons. Perikaryons of glial cells were located at some distance from neurons. Long cytoplasmic processes of glial cells tended to approach the neurons. The superimposed contours of glial cell processes designed from electron micrographs, taken at the same magnification, typical for five successive growth stages of the nervous system of Octolasium complanatum are shown in Fig. 1. Neuron is designed symbolically to facilitate the understanding of the kinetics of the growth process.

Biological and Morphological Studies on Low-Leukemia-Strain Mice with Hodgkin's-Like Neoplasia Induced by Serial Cell-Free Transmission of Leukemic Organs of SJL/J Strain Mice

1968 ◽  
Vol 26 ◽  
pp. 210-211
Author(s):  
S. Fujinaga ◽  
K. Maruyama ◽  
C.W. Williams ◽  
K. Sekhri ◽  
L. Dmochowski
Keyword(s):  
Tissue Culture ◽  
Type A ◽  
Reticulum Cell ◽  
Type B ◽  
Viral Origin ◽  
Serial Transfer ◽  
Strain Mouse ◽  
Morphological Studies ◽  
Cell Neoplasm ◽  
Free Material

Yumoto and Dmochowski (Cancer Res.27, 2098 (1967)) reported the presence of mature and immature type C leukemia virus particles in leukemic organs and tissues such as lymph nodes, spleen, thymus, liver, and kidneys of SJL/J strain mice with Hodgki's-like disease or reticulum cell neoplasm (type B). In an attempt to ascertain the possibility that this neoplasia may be of viral origin, experiments with induction and transmission of this neoplasm were carried out using cell-free extracts of leukemic organs from an SJL/J strain mouse with spontaneous disease.It has been possible to induce the disease in low-leukemia BALB/c and C3HZB strain mice and serially transfer the neoplasia by cell-free extracts of leukemic organs of these mice. Histological examination revealed the neoplasia to be of either reticulum cell-type A or type B. Serial transfer is now in its fifth passage. In addition leukemic spleen from another SJL/J strain mouse with spontaneous reticulum cell neoplasm (type A) was set up in tissue culture and is now in its 141st serial passage in vitro. Preliminary results indicate that cell-free material of 39th tissue culture passage can reproduce neoplasia in BALB/c mice.

Hepatitis A Antigen in Liver, Bile and Stool

1975 ◽  
Vol 33 ◽  
pp. 340-341
Author(s):  
D.R. Jackson ◽  
J.H. Hoofnagle ◽  
A.N. Schulman ◽  
J.L. Dienstag ◽  
R.H. Purcell ◽  
...  
Keyword(s):  
Hepatitis A ◽  
Liver Enzymes ◽  
Hepatitis A Virus ◽  
Type A ◽  
Initial Study ◽  
Virus Like Particle ◽  
Elevated Liver Enzymes ◽  
Ag Particles ◽  
Ag Particle ◽  
Human Stool

Using immune electron microscopy Feinstone et. al. demonstrated the presence of a 27 nm virus-like particle in acute-phase stools of patients with viral hepatitis, type A, These hepatitis A antigen (HA Ag) particles were aggregated by convalescent serum from patients with type A hepatitis but not by pre-infection serum. Subsequently Dienstag et. al. and Maynard et. al. produced acute hepatitis in chimpanzees by inoculation with human stool containing HA Ag. During the early acute disease, virus like particles antigenically, morphologically and biophysically identical to the human HA Ag particle were found in chimpanzee stool. Recently Hilleman et. al. have described similar particles in liver and serum of marmosets infected with hepatitis A virus (HAV). We have investigated liver, bile and stool from chimpanzees and marmosets experimentally infected with HAV. In an initial study, a chimpanzee (no.785) inoculated with HA Ag-containing stool developed elevated liver enzymes 21 days after exposure.

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