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pickupchik [31]
2 years ago
15

Increased Serum Interleukin-2 Levels Are Associated with Abnormal Peripheral Blood Natural Killer Cell Levels in Patients with A

ctive Rheumatoid Arthritis
Biology
1 answer:
amm18122 years ago
7 0

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

Learn more about Rheumatoid arthritis on

brainly.com/question/16920119

#SPJ4

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Rusting is a chemical reaction between iron and oxygen. Over time, the mass of a rusting nail
marshall27 [118]

Answer: Yes this chemical reaction obeys the laws of physics. Its very simple, let me explain.

Explanation:

When Iron(Fe) oxidizes it gains three oxygen atoms so it reacts to form Fe2O3 so it becomes bigger or explands. Its also sometimes called "oxide jacking".

4 0
3 years ago
Two species of spiny mice compete for the same food source. One species of spiny mice feeds on insects during the day, while the
Korvikt [17]

Answer:

Temporal partitioning or niche differentiation

Explanation:

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The environmental factors could be light, temperature, moisture, etc. Each species specializes in feeding within varied condition of one or more of the factors.

<em>In this case, both species are in competition but while the first species feeds during the day, the second species feeds during the night. Here, light and temperature probably plays a huge factor.</em>

Temporal partitioning is also known as niche differentiation, segregation, separation or niche partitioning.

3 0
3 years ago
Five dialysis bags constructed of membrane, which is permeable to water and impermeable to sucrose, were filled with various con
Gekata [30.6K]

Answer:

The options

A. A

B. B

C. C

D. E

The CORRECT ANSWER IS D.

E.

Explanation:

It is a regular occurrence for dialysis bags or dialysis tubing to be employed in permitting smooth movement of molecules when having to do with a fluid. These bags are normally evaluated to ensure that the client has adequate amount in th bag so as to be able to achieve the goal at hand.

If we have five dialysis bags being formed from a semi-permeable membrane which is impermeable to sucrose, they may be saturated with different concentrations of the sucrose with each of these bags being positioned in different beakers that have an initial amount of 0.6 M of a sucrose solution.

At ten minute intervals, the bags were massed and the weight was calculated to look for changes in the level of concentration. In this situation, the bag with the lowest initial concentration of sucrose is be the one that has its mass reducing over time and that is E.

The attached image confirms our answer as from the graph, option E shows the lowest initial concentration of sucrose.

3 0
3 years ago
What do humans need for respiration
trapecia [35]

Answer:

During normal human respiration, glucose (a type of sugar that you get from food) reacts with oxygen to produce energy. The energy is needed for growth, repair and movement. Water and carbon dioxide are bi-products of respiration. they need to be excreted.

Explanation:

hope this helps and btw look on google first before u come on here it alot quicker and easier

5 0
4 years ago
Is making a sandwich a chemical or physical change?
Sphinxa [80]

Answer: It is a physical change.

Explanation:

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3 0
3 years ago
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