In rheumatoid Arthritis patients, NK cell levels were abnormally elevated, possibly due to high serum levels of IL-2.
Rheumatoid arthritis (RA), is an autoimmune disease that means our own immune system attacks self healthy cells in the body by mistake, causing inflammation (painful swelling),mainly attacks the joints.
The given study is to investigate the relationship between serum interleukin-2 (IL-2) levels and disease activity.
This study also showed the relationship between absolute numbers of peripheral lymphocyte subsets, autoantibodies, and associated cytokines in patients with rheumatoid arthritis (RA).
The results showed that the number and percentage of NK cells were positively correlated with serum IL-2 levels so, IL-2 can be a reason for elevated level of NK cells
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Answer:
Electricity generation
Explanation:
Coal is burnt to release high amount of energy which is further used to convert water into steam. The steam produced turns the turbines thus generating electricity.
Answer:

Which statement best describes a scientific question?
- It must be based on a hypothesis.
- It must be testable
These are the correct Answers!
Explanation:
- A good scientific question has certain characteristics. It should have some answers should be testable it can be tested by another individual through an experiment or measurement.
Therefore, I hope this helps!
You need amino acids in your diet every day, since your body doesn't store excess amino acids consumed. If essential amino acids are missing from your diet, your body will start breaking down muscle tissue to access the amino acids that is contains so they can use them elsewhere.
The answer is (2.) platelets, plasma, erythrocytes, and leukocytes.