Cereal yellow dwarf virus (CYDV) RNA has a 5′-terminal genome-linked protein (VPg). We have expressed the VPg region of the CYDV genome in bacteria and used the purified protein (bVPg) to raise an antiserum which was able to detect free VPg in extracts of CYDV-infected oat plants. A template-dependent RNA-dependent RNA polymerase (RdRp) has been produced …
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As many as 4 out of every 10 people will get sciatica, or irritation of the sciatic nerve, at some point in their life. This nerve comes from either side of the lower spine and travels through the pelvis and buttocks. Then the nerve passes along the back of each upper leg before it divides …
by tirayrgurjanyan@gmail.com
As many as 4 out of every 10 people will get sciatica, or irritation of the sciatic nerve, at some point in their life. This nerve comes from either side of the lower spine and travels through the pelvis and buttocks. Then the nerve passes along the back of each upper leg before it divides …
by tirayrgurjanyan@gmail.com 
Immunosenescence involves a series of ageing-induced alterations in the immune system and is characterized by two opposing hallmarks: defective immune responses and increased systemic inflammation. The immune system is modulated by intrinsic and extrinsic factors and undergoes profound changes in response to the ageing process. Immune responses are therefore highly age-dependent. Emerging data show that …
by tirayrgurjanyan@gmail.com Hospital admissions because of alcohol-related liver disease (ArLD) are increasing. The amount of alcohol consumed and pattern of drinking are linked to increased risk of ArLD. However, other factors such as obesity, co-existent liver disease – particularly hepatitis C, gender, nutritional status and genetic factors also play a role. The spectrum of ArLD ranges from …
by tirayrgurjanyan@gmail.com 
T cell activation and function require a structured engagement of antigen-presenting cells. These cell contacts are characterized by two distinct dynamics in vivo: transient contacts resulting from promigratory junctions called immunological kinapses or prolonged contacts from stable junctions called immunological synapses. Kinapses operate in the steady state to allow referencing to self-peptide-MHC (pMHC) and searching …
by tirayrgurjanyan@gmail.com 
Optimal protein synthesis requires bases in transfer RNAs to be modified. A key modification has been shown to involve an unusual two-step mechanism that entails the sequential activities of two enzymes. A central dogma of molecular biology is that DNA and the corresponding RNA are complementary. But this complementarity is rewired by a process called …
by tirayrgurjanyan@gmail.com 
Cancer incidence and mortality statistics reported by the American Cancer Society1 and other resources were used to create the list. To qualify as a common cancer for the list, the estimated annual incidence for 2019 had to be 40,000 cases or more. The most common type of cancer on the list is breast cancer, with 271,270 …
by tirayrgurjanyan@gmail.com 
Jaundice, also known as icterus, is a yellowing of the skin, whites of the eyes, and body fluids due to an increase in the amount of bilirubin in the blood. Bilirubin is a yellowish pigment and byproduct of the natural daily breakdown of red blood cells (RBCs). Red blood cells typically survive for about 120 …
by tirayrgurjanyan@gmail.com
Jaundice, also known as icterus, is a yellowing of the skin, whites of the eyes, and body fluids due to an increase in the amount of bilirubin in the blood. Bilirubin is a yellowish pigment and byproduct of the natural daily breakdown of red blood cells (RBCs). Red blood cells typically survive for about 120 …
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