How does itching form?
Itching is a common physiological phenomenon that almost everyone experiences. Its formation mechanism is complex and involves the interaction of the skin, nervous system and immune system. This article will combine hot topics and hot content in the past 10 days, analyze the causes of itch from a scientific perspective, and provide relevant data and cases.
1. Physiological mechanism of itch
Itch (medically known as "itch") is a feeling caused by stimulation of the skin or mucous membranes and transmitted to the brain through nerve signals. Its main formation mechanisms include:
| type | Trigger | Related neurotransmitters |
|---|---|---|
| mechanical itch | Mosquito bites and friction | Histamine, 5-hydroxytryptamine |
| chemical itch | Allergens (e.g. pollen, dust mites) | prostaglandins, leukotrienes |
| Neurotic itch | neurological disease | Substance P, calcitonin gene-related peptide |
In the past 10 days, searches for "mosquito bites" and "allergens" have increased significantly, especially during the summer when mosquitoes are active and when pollen allergies are most common.
2. The relationship between recent hot topics and itch
The following are the topics related to itch that have been hotly discussed on the Internet in the past 10 days:
| hot topics | Types of associated itch | Discussion popularity (index) |
|---|---|---|
| “Tips for relieving itching from mosquito bites in summer” | mechanical itch | 85,000 |
| “How to relieve itching from pollen allergies” | chemical itch | 72,000 |
| “What to do about itchy skin with diabetes” | Neurotic itch | 68,000 |
It can be seen from the data thatMosquito bites and pollen allergiesIt is currently the most concerned itch-related problem.
3. Treatment and prevention of itching
There are different treatments for different types of itch:
1.mechanical itch: For mosquito bites, use antihistamine ointment (such as hydrocortisone) or cold compress to relieve the bite.
2.chemical itch: In case of allergic reaction, avoid contact with allergens and take anti-allergic drugs (such as loratadine).
3.Neurotic itch: For example, itching caused by diabetes or herpes zoster needs to be treated according to the original disease, and neuromodulatory drugs should be used if necessary.
Recently, “natural ways to relieve itching” has become a popular search term, e.g.Aloe vera gel, peppermint oil, and baking soda solutionand other home remedies are in the spotlight.
4. Progress in scientific research on itch
Scientists recently discovered thatImmune cells (such as mast cells) and nerve fibersThe interaction is key to the persistence of the itch. Here are the latest research data:
| research institute | Discover content | Publication time |
|---|---|---|
| Harvard Medical School | Discovery of new itch receptor "MRGPRX4" | July 2023 |
| University of Tokyo | Uncovering the role of IL-31 in chronic itch | July 2023 |
These studies provide directions for the development of new antipruritic drugs.
5. Summary
The formation of itch is the result of multiple factors, including external stimulation, immune response and nerve signaling. Recent hot topics show,Mosquito bites and allergiesIt is an itch-related issue that the public is most concerned about, and scientific research is constantly revealing its underlying mechanisms. In the future, with the advancement of medicine, more efficient anti-itch methods are expected to be available.
If you have persistent itching or other symptoms, it is recommended to seek medical treatment promptly to avoid delaying the condition.
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