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Murine PrP has glycosylation sites as Asn180 and Asn196. A disulfide bond exists between Cys179 of the second helix and Cys214 of the third helix (human PrP C numbering). [citation needed] PrP messenger RNA contains a pseudoknot structure (prion pseudoknot), which is thought to be involved in regulation of PrP protein translation. [15]
Platelet-rich plasma (PRP), also known as autologous conditioned plasma, is a concentrate of plasma protein derived from whole blood, centrifuged to remove red blood cells but retaining platelets. Though promoted for treating various medical conditions, evidence of its benefits was mixed as of 2020 , showing effectiveness in certain conditions ...
Major prion protein, encoded by the PrP gene; Panretinal photocoagulation, a treatment for proliferative diabetic retinopathy; Penicillin-resistant pneumococci, a Streptococcus species resistant to antibiotics; Pityriasis rubra pilaris, a rare skin disorder; Platelet-rich plasma; Progressive rubella panencephalitis, a viral neurological disorder
A prion / ˈ p r iː ɒ n / ⓘ is a misfolded protein that induces misfolding in normal variants of the same protein, leading to cellular death.Prions are responsible for prion diseases, known as transmissible spongiform encephalopathy (TSEs), which are fatal and transmissible neurodegenerative diseases affecting both humans and animals.
Platelet-rich fibrin (PRF) or leukocyte- and platelet-rich fibrin (L-PRF) is a derivative of PRP where autologous platelets and leukocytes are present in a complex fibrin matrix [1] [2] to accelerate the healing of soft and hard tissue [3] and is used as a tissue-engineering scaffold in oral and maxillofacial surgeries.
Pathogenesis-related (PR) proteins are proteins produced in plants in the event of a pathogen attack. [1] They are induced as part of systemic acquired resistance. Infections activate genes that produce PR proteins. Some of these proteins are antimicrobial, attacking molecules in the cell wall of a bacterium or fungus.
PrP systemic amyloidosis is an extremely rare and unusual form of inherited prion disease. Unlike most prion diseases, PrP systemic amyloidosis is not isolated to the central nervous system. The prion amyloid has extensive peripheral involvement, finding its way to peripheral nerves and internal organs.
[11] [12] Microbes have two main strategies in which they try to avoid the immune system, either by masking lipid A or directing their LPS towards an immunomodulatory receptor. [11] Peptidoglycan (PG) is also found within the membrane walls of gram-negative bacteria [13] and is recognized by TLR2, which is usually in a heterodimer of with TLR1 ...