Skeletal Examination by Double Staining for Ossified Bone and Cartilaginous Tissue

2012 ◽  
pp. 215-221 ◽  
Author(s):  
Steffen Schneider
Keyword(s):  
Cartilaginous Tissue ◽  
Double Staining

Enzyme histochemical application and backscattered electron imaging to visualize the distribution of lymphatic capillaries

1990 ◽  
Vol 48 (3) ◽  
pp. 880-881
Author(s):  
Seiji Kato
Keyword(s):  
Staining Method ◽  
Double Staining ◽  
Reaction Products ◽  
Blood Capillaries ◽  
Backscattered Electron Imaging ◽  
Histochemical Observation ◽  
Backscattered Electron ◽  
Double Staining Method ◽  
Electron Imaging ◽  
Cryostat Sections

Previously, the author repeatedly confirmed the higher 5’-nucleotidase (5’-Nase) and lower alkaline phoaphatase (ALPase) activities in the wall of lymphatic capillaries reacted with the lead-based method relative to those of blood capillaries. The ALPase, on the other hand, is markedly higher in blood capillaries than in lymphatics. On the basis of these enzyme characteristics, the author has developed a 5’-Nase— ALPase double staining method to differentiate small lymphatics from blood capillaries at the level of the light microcsopy. Furthermore, we applied it to histochemical observation of the lead-containing reaction products of 5’-Nase in lymphatics on the same or adjacent cryostat sections using backscattered electron imaging (BEI) in scanning electron microscope (SEM). This paper presents a new applicability of 5’-Nase histochemistry by BEI-SEM to demonstrate the distribution of lymphatic capillaries in tissue blocks.

A pre-embedding double staining procedure used to observe the effect of fixation on the activity of intercellular adhesion molecule on T and B cells

1990 ◽  
Vol 48 (3) ◽  
pp. 378-379
Author(s):  
Jane E. Ramberg ◽  
Shigeto Tohma ◽  
Peter E. Lipsky
Keyword(s):  
B Cells ◽  
Adhesion Molecule ◽  
Colloidal Gold ◽  
Intercellular Adhesion ◽  
Intercellular Adhesion Molecule ◽  
Staining Procedure ◽  
Double Staining ◽  
T And B Cells ◽  
Microtiter Plates ◽  
Streptavidin Peroxidase

Intercellular adhesion molecule (ICAM-1) appears to be a ligand for LFA-1 dependent adhesion in T cell mediated cytotoxcity. It is found on cells of both hematopoietic and non-hematopoietic origin. While observing the activity of ICAM-1 on the surfaces of interacting T and B cells, we found that we could successfully carry out a pre-embedding double staining procedure utilizing both colloidal gold and peroxidase conjugated reagents.On 24-well microtiter plates, mitomycin-treated T4 cells were stimulated with 64.1 (anti-CD3) for one hour before the addition, in some instances, of B cells. Following a 12-48 hour incubation at 38°C, the cells were washed and then immunostained with a colloidal gold conjugated RFB-4 (anti-CD22); biotinylated R6.5 (anti-ICAM-1); followed by streptavidin/peroxidase. This method allowed us to observe two different antigens without concern about possible cross-reaction of reagents. Because we suspected ICAM-1 and R6.5 were sensitive to fixation, we tried varying concentrations of fresh paraformaldehyde before R6.5, after R6.5 and after streptavidin/peroxidase. All immunostaining and washing was done on ice with ice cold reagents.

scholarly journals METHODS FOR THE STUDY OF SMALL PHAGOSOMES AND THEIR RELATIONSHIP TO LYSOSOMES WITH HORSERADISH PEROXIDASE AS A "MARKER PROTEIN"

1967 ◽  
Vol 15 (7) ◽  
pp. 375-380 ◽  
Author(s):  
WERNER STRAUS
Keyword(s):  
Acid Phosphatase ◽  
Low Temperature ◽  
Horseradish Peroxidase ◽  
Acid Medium ◽  
Tissue Section ◽  
Double Staining ◽  
Marker Protein ◽  
Polar Media ◽  
The Stability ◽  
Blue Reaction

Small phagosomes (micropinocytic vesicles and vacuoles) which had taken up injected horseradish peroxidase were identified by staining for peroxidase with benzidine and H2O2. Because of the small size of the granules and the possibility of artifacts, previously described procedures had to be modified in several respects. Prefixation of the tissue by perfusion at 37°C prevented artifacts of diffusion and adsorption of peroxidase. The blue product of the reaction of peroxidase with benzidine in the small phagosomes was preserved and fading to brown was prevented by cooling the tissue section to –10° to –15°C during its processing through polar media. The blue reaction product was stable as soon as the section was transferred to an apolar medium. Small phagosomes were visualized together with lysosomes and phago-lysosomes in the same cells by double staining for acid phosphatase and peroxidase in contrasting colors. The incubation for acid phosphatase was performed at 4°C since low temperature increased the stability of peroxidase in the acid medium. Factors which form the basis for other improvements of the procedure are discussed.

scholarly journals Double-staining procedure for the fluorescent treponemal antibody absorption (FTA-ABS) test.

1979 ◽  
Vol 55 (2) ◽  
pp. 105-108
Author(s):  
E F Hunter ◽  
R M McKinney ◽  
S E Maddison ◽  
D D Cruce
Keyword(s):  
Staining Procedure ◽  
Double Staining ◽  
Antibody Absorption

Detection of DNA fragmentation of myonuclei in myotonic dystrophy by double staining with anti-emerin antibody and by nick end-labeling

2000 ◽  
Vol 173 (2) ◽  
pp. 97-102 ◽  
Author(s):  
Hirohisa Yamada ◽  
Masanori Nakagawa ◽  
Itsuro Higuchi ◽  
Takashi Horikiri ◽  
Mitsuhiro Osame
Keyword(s):  
Myotonic Dystrophy ◽  
Dna Fragmentation ◽  
Double Staining

scholarly journals Human kidney is a target for novel severe acute respiratory syndrome coronavirus 2 infection

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Bo Diao ◽  
Chenhui Wang ◽  
Rongshuai Wang ◽  
Zeqing Feng ◽  
Ji Zhang ◽  
...  
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Kidney Injury ◽  
Human Kidney ◽  
The Elderly ◽  
Tubular Damage ◽  
Clinical Parameters ◽  
Double Staining ◽  
Protein Deposits ◽  
Prostaglandin D Synthase

AbstractIt is unclear whether severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can directly infect human kidney, thus leading to acute kidney injury (AKI). Here, we perform a retrospective analysis of clinical parameters from 85 patients with laboratory-confirmed coronavirus disease 2019 (COVID-19); moreover, kidney histopathology from six additional COVID-19 patients with post-mortem examinations was performed. We find that 27% (23/85) of patients exhibited AKI. The elderly patients and cases with comorbidities (hypertension and heart failure) are more prone to develop AKI. Haematoxylin & eosin staining shows that the kidneys from COVID-19 autopsies have moderate to severe tubular damage. In situ hybridization assays illustrate that viral RNA accumulates in tubules. Immunohistochemistry shows nucleocapsid and spike protein deposits in the tubules, and immunofluorescence double staining shows that both antigens are restricted to the angiotensin converting enzyme-II-positive tubules. SARS-CoV-2 infection triggers the expression of hypoxic damage-associated molecules, including DP2 and prostaglandin D synthase in infected tubules. Moreover, it enhances CD68+ macrophages infiltration into the tubulointerstitium, and complement C5b-9 deposition on tubules is also observed. These results suggest that SARS-CoV-2 directly infects human kidney to mediate tubular pathogenesis and AKI.

SIPNs polymeric scaffold for use in cartilaginous tissue engineering: physical-chemical evaluation and biological behavior

2021 ◽  
Vol 26 ◽  
pp. 102111
Author(s):  
Elcio Malcher Dias Junior ◽  
Dayane dos Reis Costa Dias ◽  
Ana Paula Drummond Rodrigues ◽  
Carmen Gilda Barroso Tavares Dias ◽  
Gilmara de Nazareth Tavares Bastos ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Biological Behavior ◽  
Cartilaginous Tissue ◽  
Chemical Evaluation ◽  
Polymeric Scaffold ◽  
Physical Chemical
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