Precise radiotherapy can effectively improve the survival rate of cancer patients
Release date: 2009-08-31 In a significant development, the Cancer Radiation Center at the 309th Hospital of the People's Liberation Army recently introduced a comprehensive range of advanced radiotherapy and supporting equipment. This includes cutting-edge linear accelerators equipped with image guidance systems, analog positioning machines, therapeutic devices, and an advanced intensity-modulated treatment planning system. These technologies are designed to enhance the precision of radiation delivery, maximizing tumor cell destruction while minimizing harm to healthy surrounding tissues. According to Dr. Li Yuemin, head of the Department of Radiation Oncology at the 309th Hospital, recent advancements in radiotherapy equipment and techniques have brought the field into the era of precise conformal and intensity-modulated treatments. Treatment planning now heavily relies on computerized systems that accurately define target areas and calculate optimal radiation doses for both the tumor and nearby normal tissues. As one of the most effective cancer treatment methods, precision radiotherapy is not only used alongside surgery and chemotherapy but can also serve as a standalone treatment option. It is especially beneficial for small or early-stage tumors that are difficult to remove through surgical means, offering patients a chance for long-term remission or even cure. With continuous improvements in technology, the future of cancer treatment looks increasingly promising, offering more targeted and less invasive options for patients. Meditech Medical Network
Melanin is a protein that exists in the basal layer of everyone` s skin. The exposure to ultraviolet radiation can cause changes in melanin, generating a substance that protects the skin. Then, melanin moves through the layers of cellular metabolism and reaches the epidermis of the skin, resulting in skin problems such as pigmentation and uneven skin color.
(1) The first step of whitening is to inhibit melanin production.
Melanin is the most important type of pigment that affects skin whiteness, and inhibiting the generation of melanin is the most important ultimate goal of whitening products.
(2) The second step of whitening is to block melanin transport.
After melanin is generated within melanocytes, melanosomes are transported along the dendritic processes of melanocytes to the surrounding keratinocytes, affecting skin color.
(3)The third step of whitening, stripping.
By softening the stratum corneum, these substances accelerate the shedding of dead cells in the stratum corneum and promote the metabolism of the epidermis, so that the melanosomes entering the epidermis fall off with the rapid renewal of the epidermis during metabolism process, thereby reducing its impact on skin color.
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