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It requires boiling deparaffinized formalin fixed paraffin embedded tissue sections in either water or various buffer solutions. Due to the limited application of non-heating AR and the prevalence of heat-induced AR, the term "Antigen Retrieval" (AR) is most commonly used to refer to heat-induced AR.
The substance used to embed tissue is embedding media, which is chosen depends on the category of the microscope, category of the micro tome, and category of tissue. [23] Paraffin wax, whose melting point is from 56 to 62°C, is commonly used for embedding. [22] Tissue processing - Tissue sections on slides are stained on an automated stainer
PAS-D is a stain often used by pathologists as an ancillary study in making a histologic diagnosis on paraffin-embedded tissue specimens. PAS stain typically gives a magenta color in the presence of glycogen. When PAS and diastase are used together, a light pink color replaces the deep magenta.
Frozen section procedure: tissue embedded in optimal cutting temperature compound, mounted on a chuck in a cryostat and ready for section production. Optimal cutting temperature (OCT) compound is used to embed tissue samples prior to frozen sectioning on a microtome-cryostat. This process is undertaken so as to mount slices (sections) of a ...
Pain, swelling, or stiffness in one or more joints is commonly present in psoriatic arthritis. [5] Psoriatic arthritis is inflammatory, and affected joints are generally red or warm to the touch. [5] Asymmetrical oligoarthritis, defined as inflammation affecting two to four joints during the first six months of disease, is present in 70% of ...
Post-traumatic arthritis is a form of osteoarthritis and the former can occur after the latter. However, post-traumatic arthritis can also occur after the development of chronic inflammatory arthritis. Generally, post-traumatic arthritis is classified in two groups: post-traumatic osteoarthritis and post-traumatic inflammatory arthritis. [2]
Undifferentiated connective tissue disease (UCTD) (also known as latent lupus or incomplete lupus [1]) is a disease in which the connective tissues are targeted by the immune system. It is a serological and clinical manifestation of an autoimmune disease .
Palindromic rheumatism is a disease of unknown cause. It has been suggested that it is an abortive form of rheumatoid arthritis (RA), since anti-cyclic citrullinated peptide antibodies (anti-CCP) and antikeratin antibodies (AKA) are present in a high proportion of patients, as is the case in rheumatoid arthritis. [6]