scholarly journals Immunohistochemical Localization of Prothoracicotropic Hormone-Producing Neurosecretory Cells in the Brain of Bombyx mori. (prothoracicotropic hormone/Bombyx mori/monoclonal antibody/brain neurosecretory cell/neurohaemal organ)

1990 ◽  
Vol 32 (6) ◽  
pp. 591-598 ◽  
Author(s):  
Akira Mizoguchi ◽  
Tadanori Oka ◽  
Hiroshi Kataoka ◽  
Hiromichi Nagasawa ◽  
Akinori Suzuki ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Bombyx Mori ◽  
Neurosecretory Cell ◽  
Neurosecretory Cells ◽  
Immunohistochemical Localization ◽  
Prothoracicotropic Hormone ◽  
Neurohaemal Organ ◽  
The Brain

Projection of FMRFamide-like neuropeptide-producing neurosecretory cells from silkworm brain into ventral nerve cord and retrocerebral complex

2012 ◽  
Vol 144 (3) ◽  
pp. 458-466 ◽  
Author(s):  
Bo Yong Kim ◽  
Hwa Young Song ◽  
Mi Young Kim ◽  
Pil Don Kang ◽  
Min Ho Cha ◽  
...  
Keyword(s):  
Juvenile Hormone ◽  
Bombyx Mori ◽  
Nerve Cord ◽  
Ventral Nerve Cord ◽  
Neurosecretory Cells ◽  
Single Pair ◽  
Corpus Cardiacum ◽  
Pars Intercerebralis ◽  
Median Region ◽  
The Brain

AbstractUsing immunostaining methodology, we traced the axonal projection of FMRFamide (Phe-Met-Arg-Phe-NH2)-like immunoreactive (LI) medial neurosecretory cells (MNCs) and lateral neurosecretory cells (LNCs) from the brain into the ventral nerve cord (VNC) and retrocerebral complex in Bombyx mori (L.) (Lepidoptera: Bombycidae). Of the seven pairs of FMRFamide-LI MNCs, one pair extended its axons from the brain pars intercerebralis into the VNC ipsilateral connective where they appeared to terminate. The axons of the remaining MNCs ran through decussation in the brain median region and contralateral nervi corporis cardiaci (NCC) I out of the brain, and eventually innervated the contralateral corpus cardiacum (CC). Axons from the single pair of FMRFamide-LI LNCs projected into the ipsilateral NCC II fused with NCC I without decussation in the brain, and finally terminated in the CC. These results suggest that transport of the FMRFamide-like neuropeptide from may be related to the modulation of functions such as gut contraction in MNCs terminating in the VNC, and regulation of production and/or secretion of specific hormones such as juvenile hormone in MNCs and LNCs terminating in the CC.

scholarly journals EcR expression in the prothoracicotropic hormone-producing neurosecretory cells of the Bombyx mori brain.

FEBS Journal ◽  
2006 ◽  
Vol 273 (16) ◽  
pp. 3861-3868 ◽  
Author(s):  
Monwar Hossain ◽  
Sakiko Shimizu ◽  
Haruhiko Fujiwara ◽  
Sho Sakurai ◽  
Masafumi Iwami
Keyword(s):  
Bombyx Mori ◽  
Neurosecretory Cells ◽  
Prothoracicotropic Hormone

scholarly journals Isolation of material displaying insulin-like immunological biological activity from the brain of the blowfly Calliphora vomitoria

1979 ◽  
Vol 184 (2) ◽  
pp. 221-227 ◽  
Author(s):  
H Duve ◽  
A Thorpe ◽  
N R Lazarus
Keyword(s):  
Biological Activity ◽  
Neurosecretory Cell ◽  
Polyacrylamide Gel Electrophoresis ◽  
Gel Filtration ◽  
Insulin Receptors ◽  
Neurosecretory Cells ◽  
Bovine Insulin ◽  
Fat Cell ◽  
Median Neurosecretory Cells ◽  
The Brain

An insulin-like material from the brain of the blowfly Calliphora vomitoria was partially purified by acid alcohol extraction, gel filtration and ion-exchange cellulose chromatography. In addition, the RF value on polyacrylamide-gel electrophoresis was determined. The material was characterized by its ability to cross-react with bovine insulin antibody and by displaying diminished immunoreactivity on dilution. It displaced specifically bound 125I-labelled insulin from rat liver plasma membrane insulin receptors and displayed insulin-like biological activity on the isolated rat fat-cell. Within 30 min of injection into Calliphora, made hypertrehalocaemic and hyperglucaemic as a result of median neurosecretory cell removal, it caused the concentrations of both sugars to return to normal. The hypothesis is put forward that the median neurosecretory cells are the source of the material.

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