skin cancerIt is a cancer that grows on the skin and develops from abnormal cells that may even spread to different parts of the body.Skin cancer is mainly related to long-term exposure to the sunultraviolet raysNext regarding.In fact, by takingVitamin B3can protect the skin from ultraviolet rays, and keep people away from skin cancer.
skin cancerThere are three types: basal cell carcinoma, squamous cell carcinoma, and melanoma, each with different symptoms.
1. Basal cell carcinoma
This is a common malignant tumor of the skin, which is more likely to occur in the elderly. Such cancer cells hardly metastasize, and the success rate of surgical treatment is very high.
symptom:
● May be one or several red, flesh-colored, or black tumors that grow in size.
● Sometimes ulcers and bleeding.
● Dilation of microvessels can be seen around the tumor.
● Pink, translucent, lustrous pearlescent bumps.
2. Squamous cell carcinoma
It is the second most common skin malignancy and also occurs in the elderly, most commonly on sun-exposed areas, especially the face. Less likely to metastasize to other internal organs. If detected early, surgical treatment has a high success rate.
symptom:
● It may be single or several, red or flesh-colored tumors or ulcers that grow gradually.
● Tumor appearance is sometimes covered with a layer of scaly skin.
3. Malignant melanoma
The most aggressive form of skin cancer, characterized by pigmented nevus, can occur anywhere on the body. It easily metastasizes to regional lymph nodes and other internal organs, including liver, lung, brain, and bones, and has a high mortality rate. It can occur in any age group, but it is more common in middle-aged and elderly people.
symptom:
● Asians are more likely to occur on the palms or fingernails.
● The moles are asymmetrical in shape, with irregular edges and uneven color, larger than 0.6 cm in diameter, and gradually larger and more convex.
Vitamin B3resistultraviolet rays
Vitamin B3 protects the skin from UV rays. Because DNA repair requires a lot of energy, vitamin B3 can promote DNA repair by helping cells generate energy, thereby reducing mutations in cancer genes and tumor suppressor genes.
Australian researchers conducted the trial with 386 patients who had at least two non-melanoma skin cancers in the past five years. They were randomly divided into two groups. One group took 500 mg of vitamin B3 supplements twice a day; the other group took a placebo.
It was found that at 12 months, the relative incidence of non-melanoma skin cancer was reduced by 23% in the vitamin B3 group, and the relative incidence of actinic keratosis (a precancerous lesion) was reduced by 13%.
Vitamin B3 may inhibit melanoma
Vitamin B3 also has preventive and inhibitory effects on melanoma. The inhibition of vitamin B3 on melanoma is similar to that on non-melanoma. Vitamin B3 can help cells restore energy levels, thus aiding in the repair of melanocytes.
Animal experiments also confirmed that vitamin B3 inhibited the proliferation, metastasis and invasion of melanoma cells.
What vitamin B3 to take？
Usually health care products or clinically useNiacinamideAs a vitamin B3 supplement, because the human body tolerates nicotinamide very well, it will not have too many side effects. For many years, nicotinamide has been used clinically in pharmacological doses, up to 3 grams per day. Hepatotoxicity from nicotinamide is rare but can occur at very high doses (greater than 3 g/day).
People can get it through a varied dietNiacinamide, such as meat, fish, eggs, beans, brown rice, nuts, seeds, and mushrooms. Niacinamide is also a product of tryptophan metabolism. 50% of the nicotinamide in our body is synthesized by ourselves.
For people with a high risk of skin cancer, supplementing with niacinamide can protect the skin, reduce damage from ultraviolet radiation and improve skin repair ability. These supplements are inexpensive and readily available.
usesunscreen
In addition to taking vitamin B3, the key to preventing skin cancer is to usesunscreen. When choosing, you must pay attention to the sun protection factor (Sun Protection Factor, SPF). Commercially available sunscreens are marked with SPF and an Arabic number, such as SPF15 and SPF30, which refer to the effectiveness of the sunscreen.
The calculation method is that if a person does not use sunscreen, erythema will start to appear on the skin following 20 minutes of exposure to the sun, and the use of SPF30 sunscreen can extend the protection time to 600 minutes (20 minutes * 30SPF), however, the actual blocking value depends on There will be gaps in different situations.
In addition, you should also hold an umbrella, wear a hat, sunglasses, and long sleeves and trousers when you are active in the sun at ordinary times, so as to avoid direct exposure of the skin to the sun. Snow, pools, etc. will reflect the sun, and you should also pay attention to avoiding solar radiation when you are active in these places.
(Editor in charge: Zhuo Jing)
URL of this article: https://www.ntdtv.com/b5/2023/01/25/a103634409.html
