Why does shark cartilage have cancer treatment effect?

Shark cartilage can fight cancer, which is actually false propaganda. According to a recent report by Russian News Network, Gary ostrander, a professor of biology and comparative medicine at Johns Hopkins University in the United States, pointed out in a newly published research report that sharks can also suffer from cancer. At the same time, eating shark cartilage has no obvious effect on treating cancer. Professor Gary ostrander believes that the rise of shark cartilage eating habits is just a victory of "pseudoscience" through marketing. He said that eating shark cartilage is not only not conducive to treating patients, but also will cause great harm to shark population-patients often blindly believe in the efficacy of these cartilage, refuse other treatment methods, and wanton killing activities lead to a rapid decline in the number of sharks. Sharks were once regarded as insulators of cancer, and their cartilage powder was promoted as a good medicine for treating cancer. As early as 1983, Anne Lee and Robert Langer, two biochemists from Massachusetts Institute of Technology, published an article in the famous American journal Science, saying that squalene in shark cartilage can block the angiogenesis of cancer cells and proved that it can inhibit the growth of cancer cells. 1993 "60 Minutes" on CBS TV invited Dr. William Lance, the author of "Sharks Don't Get Cancer", to discuss the research results that shark cartilage can fight cancer. Several patients with advanced cancer said in the program that after taking shark cartilage capsules for several weeks, they felt their symptoms relieved. Since then, shark cartilage has been widely circulated through books, articles, websites and vendors. Subsequently, the pharmaceutical factory launched a pill made of shark connective tissue in the market, claiming that this shark pill is a "good medicine for treating cancer", creating a market with annual sales of shark cartilage products exceeding 50 million US dollars, and the largest shark cartilage manufacturer is Dr. William's son. From 65438 to 0994, the US Food and Drug Administration (FDA) officially approved the use of shark cartilage products to prevent and treat cancer. As a result, shark cartilage products have become a hot spot in the health care products market, affecting the whole world. In China, shark cartilage products and restaurants selling shark soup were once very popular. In the late 1990s, the anti-cancer theory of shark cartilage powder spread to China. At that time, there were two kinds of shark cartilage products on the market: one was shark cartilage bone powder after physical processing, and the other was active extract extracted by chemical method. In addition to vigorously promoting the number of "effective ingredients" in anti-cancer, the former claims that the fineness of bone meal grinding is exquisite, and the fineness must be above 200 meshes before it can be absorbed by the human body. The finer the better. It is said that the fineness of some products in the United States has reached 300 meshes, which greatly improves the human body's absorption of active egg white, the effective component of bone meal. The latter said that two kinds of angiogenesis inhibitors with anti-tumor function were purified from very complex shark cartilage tissue, and a series of anti-cancer drugs such as shark chondroitin capsules and shark cartilage powder were made according to these components. This medicine used to sell well in China market. Because sharks have this unique anti-cancer function, there has been a "craze" for eating sharks in society, especially in restaurants in Hong Kong and Guangzhou, where shark cartilage is boiled and sold as soup, which is called "shark cartilage old fire soup" with various varieties. These restaurants claim that this soup not only has anti-cancer effects, but also has the functions of beauty beauty, strengthening bones and muscles and nourishing the spleen and stomach. As a result, people eat it in an endless stream. Recent research shows that sharks themselves can get cancer. Recent studies have shown that sharks themselves may suffer from a variety of cancer diseases, including cancer of cartilage tissue. In his research report, Professor Gary ostrander cited 40 examples of sharks suffering from tumors, which overturned the previous statement that sharks have no cancer. American scientist John Hasbage also pointed out at the 9 1 annual meeting of the American Anti-Cancer Association that sharks can get cancer. Hasbage, a scholar working at the National Cancer Institute in the United States, discovered 50 kinds of cancers of cartilaginous fish, 23 of which came from various sharks, and some of them grew directly in cartilage. It is worth noting that Dr. William Lance, the author of Sharks Can't Get Cancer (he can be called the father of shark therapy), recently admitted that sharks do get cancer and admitted to the outside world that his conclusion that shark cartilage extract can treat cancer is only based on extremely limited experimental results. Clinical experiments have proved that shark cartilage powder has no cancer treatment effect. In fact, so far, the clinical experiments of shark cartilage powder's anticancer effect have been proved to be ineffective. Danish scholars reported at the European breast cancer conference that they found that women who took so-called "alternative anticancer drugs" made of shark cartilage did not benefit from this drug. Danish researchers tested 17 patients with advanced breast cancer with shark cartilage extract, and gave 17 patients a considerable number of shark pills, taking 24 tablets a day. After three months, among 17 patients, 15 people's cancer continued to deteriorate. Another patient showed signs of improvement at first, but later a new tumor was found in his brain. In addition, in another clinical experiment, more than 50 patients with breast cancer, lung cancer, prostate cancer, colorectal cancer and so on. After using the purified shark cartilage protein, there is no obvious improvement. Moreover, according to the research of the National Institutes of Health, protein molecules in shark cartilage are too large to be easily absorbed by the intestine, and even if absorbed, they will be decomposed and destroyed. Health food named shark cartilage has no curative effect on cancer. Not long ago, the US Food and Drug Administration and the Inspection Bureau filed a lawsuit against William and his son's laboratory and factory, demanding that the false advertisement that shark cartilage products can resist cancer be stopped. The US Federal Trade Commission also ruled that any false propaganda of shark cartilage products is prohibited unless there is relevant scientific evidence to prove it. William Lance Laboratory has to pay a judgment fee of $6,543.8+0,000, of which $450,000 will be given to the National Cancer Center and William Lance Laboratory to jointly conduct large-scale clinical trials on shark cartilage to find out the truth. Scientists believe that all kinds of healthy foods named shark cartilage have no obvious effect on cancer. Anti-cancer of shark fin is a new version of the unscientific saying "what you eat supplements what you eat". To take a step back, even if sharks don't have some kind of cancer that humans suffer from, it can't be concluded that shark products can treat human cancer. For example, cats and horses don't get prostate cancer. Studies have shown that even eating the prostate of cats and horses cannot prevent prostate cancer. And sharks can cause cancer, so consumers who try to eat expensive shark bone powder to fight cancer should think twice. Medical experts believe that most healthy foods advertised as "anti-cancer" only sell "hope". What consumers really need to look forward to is the progress of science and technology, not the superstition of commercial advertisements.