Don't throw away those deciduous teeth, they have incredible potential. A recent study showed that stem cells extracted from baby deciduous teeth can be used to repair tooth damage and necrosis. Scientists have announced that they have been able to use these stem cells to repair undeveloped permanent teeth in children's mouth. The research has recently been published in the journal Science Translational Medicine.
Recently, in a clinical trial conducted in China, researchers successfully used the regenerative properties of stem cells to supplement the soft tissue (or pulp) in the teeth of 30 patients. Next, this technique will also be used to treat adult teeth, replacing blood vessels and nerve connections. These connections usually disappear permanently when the teeth are severely damaged.
Research author, Songtao Shi of the University of Pennsylvania, said: "This therapy restores the patient's teeth to perception and can feel hot and cold stimuli. It can be said that their teeth are resurrected! Up to now, we have two years, two Tracking data for half and three years. These data prove that this is a very safe and effective treatment."
As the researchers point out, almost half of patients suffer from certain dental damage during childhood. If these conditions occur during the growth of their permanent teeth, blood supply and root development will be affected, sometimes leaving a "dead." "tooth.
Dentists have been using a technique called apical angioplasty to promote root development, but this is not an ideal solution and does not help restore lost pulp.
Shi and his team have been working on stem cells extracted from deciduous teeth for up to ten years, technically known as human deciduous marrow stem cells (hDPSC). A recent clinical trial involving 40 patients with pulpal necrosis after traumatic tooth injury, 30 of whom were randomly assigned to the hDPSC group and 10 were assigned to the traditional treatment group. The stem cells of the hDPSC group were cultured in the experiment and then implanted into the damaged teeth.
The results showed that patients receiving hDPSC increased blood flow in the injured teeth, thickened dentin, and good root growth. A year later, only those damaged teeth that received new treatments recovered consciousness. During the trial, one patient unfortunately injured another damaged tooth, so he had to remove the tooth, but it also gave the researchers the opportunity to test again. They found that stem cells have regenerated dentin-producing cells, connective tissue, and blood vessels, all of which help shape the pulp.
The results of this study are very encouraging, but there is still a lot of work to be done. Researchers say more extensive testing is needed to ensure that these processes go smoothly. The team also wanted to understand the response of non-autologous deciduous stem cells in the body, because their deciduous teeth were long gone when treating adult tooth damage. Currently, this research is an important advancement in the field of dental restoration.
Last year, researchers discovered that a drug called Tideglusib activates stem cells at the center of the pulp and regenerates some of the tissue. Although human trials have not yet been conducted, research is underway.
If such treatments can eventually become reliable and safe enough, we can expect more children and adults to have healthy teeth. Shi said: "For me, these results are very exciting. The results we have achieved are likely to become routine treatments in the clinic, which is very gratifying."
Source: Ministry of Science and Technology
Single Packed Mottled Waxy Corn
Waxy corn comes in a variety of colours. Some people wonder if waxy corn is a genetically modified product. In fact, it is not. Waxy corn originated in China. It is caused by a genetic mutation. Artificial selection gradually led to the emergence of a type of tannin.
Waxy corn, also known as waxy corn, is sticky corn. The grain has coarse, waxy endosperm, similar to shiny, glassy (clear) grains such as hard and dented corn. Its chemical and physical characteristics are controlled by a recessive gene (wx), which is located on chromosome 9. 100% of the starch in the endosperm is straight-chain starch.
Coloured glutinous corn is generally white, yellow, red, purple and black, with white, yellow and purple corn being the basic colours. Purple and white hybrids naturally become purple if the purple gene "beats" the white gene and vice versa, so if the two tie we see white and purple corn. Purple can turn into red and black corn, or as we often say, "red is purple and black is purple". Of these colourful corn, the most common yellow waxy corn is the most nutritious as it is rich in carotenoids...
Currently, the only genetically modified foods sold on the Chinese market are soybean oil and papaya. Waxy maize is a hybrid variety and is not associated with genetic modification. Therefore, it can be concluded that glutinous maize is a hybrid variety and has nothing to do with genetic modification.
Genetic modification is a type of "genetic engineering" in modern science and technology, which makes use of modern molecular biology techniques. Hybridisation is the mating of individuals of different genotypes to produce offspring that are different from the original "pure" breed. In a sense, it belongs to the natural exchange of genes that can occur in nature.
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