scholarly journals Interphase Cytogenetic (In Situ Hybridization) Analysis of Astrocytomas Using Archival, Formalin-Fixed, Paraffin-Embedded Tissue and Nonfluorescent Light Microscopy

1997 ◽  
Vol 108 (2) ◽  
pp. 166-174 ◽  
Author(s):  
Arie Perry ◽  
Vijay Tonk ◽  
D. D. Mcintire ◽  
Charles L. White
Keyword(s):  
In Situ Hybridization ◽  
Light Microscopy ◽  
Hybridization Analysis ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
Formalin Fixed

Canine Hepatitis Associated with Intrahepatic Bacteria in Three Dogs

2018 ◽  
Vol 54 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Joon Im ◽  
Derek P. Burney ◽  
Sean P. McDonough ◽  
Brigid Nicholson ◽  
Adam Eatroff ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Case Report ◽  
Fluorescence In Situ Hybridization ◽  
Antimicrobial Therapy ◽  
Granulomatous Inflammation ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
Hematoxylin And Eosin ◽  
Formalin Fixed

ABSTRACT This case report describes the detection of intrahepatic bacteria in formalin-fixed paraffin-embedded histopathological sections from three dogs with neutrophilic, pyogranulomatous, or lymphoplasmacytic hepatitis and cholangiohepatitis. In each of these cases, eubacterial fluorescence in situ hybridization enabled colocalization of intrahepatic bacteria with neutrophilic and granulomatous inflammation in samples that were negative for bacteria when evaluated by routine hematoxylin and eosin histopathology augmented with histochemical stains. Positive responses to antimicrobial therapy were observed in of 2 out of 2 patients that were treated with antimicrobials. These findings suggest that eubacterial fluorescence in situ hybridization analysis of formalin-fixed paraffin-embedded histopathological sections is more sensitive than conventional histochemical stains for the diagnosis of bacteria-associated canine hepatitis.

Application of in situ hybridization with a novel phenytoin-labeled probe to conventional formalin-fixed, paraffin-embedded tissue sections

1995 ◽  
Vol 52 (3) ◽  
pp. 309-316 ◽  
Author(s):  
Yoshito Eizuru ◽  
Yoichi Minamishima ◽  
Tadashi Matsumoto ◽  
Toshinari Hamakado ◽  
Mikio Mizukoshi ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Tissue Sections ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
Labeled Probe ◽  
Formalin Fixed

PAC1 receptor mRNA and protein distribution in rat and human trigeminal and sphenopalatine ganglia, spinal trigeminal nucleus and in dura mater

Cephalalgia ◽  
2018 ◽  
Vol 39 (7) ◽  
pp. 827-840 ◽  
Author(s):  
Kelly Hensley ◽  
Jim Pretorius ◽  
Brian Chan ◽  
Keith Page ◽  
Hantao Liu ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Sphenopalatine Ganglion ◽  
Spinal Trigeminal Nucleus ◽  
Trigeminal Nucleus ◽  
Pac1 Receptor ◽  
Receptor Mrna ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
Formalin Fixed

Background To further understand the role of pituitary adenylate cyclase-activating polypeptide 1 (PAC1) receptors in headache disorders, we mapped their expression in tissues of the trigemino-autonomic system by immunohistochemistry and in situ hybridization. Methods To optimize screening for monoclonal antibodies suitable for immunohistochemistry on formalin-fixed, paraffin-embedded tissues, we developed a new enzyme-linked immunosorbent assay using formalin-fixed, paraffin-embedded cells overexpressing human PAC1 receptors. 169G4.1 was selected from these studies for analysis of rat and human tissues and chimerized onto a mouse backbone to avoid human-on-human cross-reactivity. Immunoreactivity was compared to PAC1 receptor mRNA by in situ hybridization in both species. Results 169G4.1 immunoreactivity delineated neuronal cell bodies in the sphenopalatine ganglion in both rat and human, whereas no staining was detected in the trigeminal ganglion. The spinal trigeminal nucleus in both species showed immunoreactivity as especially strong in the upper laminae with both cell bodies and neuropil being labelled. No immunoreactivity was seen in either rat or human dura mater vessels. In situ hybridization in both species revealed mRNA in sphenopalatine ganglion neurons and the spinal trigeminal nucleus, a weak signal in the trigeminal nucleus and no signal in dural vessels. Conclusion Taken together, these data support a role for PAC1 receptors in the trigemino-autonomic system as it relates to headache pathophysiology.

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