8 results about "Low Dose Radiation" patented technology

Disclosed is a low-dose radiation treatment system for dementia or chronic inflammation treatment based on a photon energy beam emission form, the low-dose radiation treatment system including: a low-dose radiation therapy device wherein a treatment bed where a patient receives treatment while lying down is formed on a device body and a plurality of carbon nanotube sources are installed around an inner periphery of a ring-shaped gate of the device body to form a radiation gantry so that therapeutic radiation is irradiated toward the patient's body; and a controller configured to check a patient's condition using entered patient information and to set a treatment direction, and then to perform radiation therapy by controlling an operation of the low-dose radiation therapy device, wherein pulsed beam-type carbon nanotube sources are installed around the inner periphery of the radiation gantry, and the controller controls a radiation beam irradiation time (beam on-off time) of the carbon nanotube sources and a radiation beam irradiation interval between the carbon nanotube sources to control the radiation beam irradiation interval to a cell damage repair time (DNA repair time) of being capable of repairing DNA damage in normal cells.

The present invention relates to a composition for the prevention or treatment of metastatic cancer, capable of inducing an abscopal effect, which is a systemic anticancer effect, in combination with radiotherapy to treat metastatic cancer that has spread from a primary cancer, wherein, by having confirmed that, upon radiotherapy in which a primary cancer site was irradiated with a low dose of radiation, the abscopal effect, which is a systemic anticancer effect, did not appear, whereas, when type 1 interferon was administered in combination with low-dose radiation to the primary cancer site, an anticancer effect appears even in non-radiated metastatic cancer sites, a composition comprising type 1 interferon is provided as a therapeutic agent or adjuvant for the treatment of metastatic cancer, which induces a systemic anticancer effect upon low-dose radiotherapy.

Recombinant expression systems and radiation useful for the treatment of cancer The invention relates to a recombinant expression system comprising a nucleic acid construct, particularly for use in a combined gene and radiation therapy for the treatment of diseases, especially cancer. Said expression system is administered to a tumor that received prior low dose radiation. Additionally, the method comprises that at least one further tumor different from the one treated with expression system is subjected to radiation.

The application provides application of indole acetic acid in intervention or treatment of thyroid cancer caused by long-term low-dose ionizing radiation, and belongs to the field of biomedical technology. It is found that indole acetic acid (IAA) is significantly negatively correlated with the occurrence of thyroid nodules after low-dose radiation, the proliferation, clone formation, invasion and migration of BCPAP cells can be inhibited after IAA is supplemented, and the tumor formation ability is greatly reduced, so the thyroid cancer caused by long-term low-dose ionizing radiation can be treated by supplementing IAA. The application also screens the KCNE4 gene for regulating the thyroid cancer caused by long-term low-dose ionizing radiation, and IAA can inhibit the expression of the gene, which indicates that IAA and the inhibitor of the gene both have the potential of serving as a therapeutic target for the thyroid cancer caused by long-term low-dose ionizing radiation.

The present invention relates to a rheumatoid arthritis treatment method comprising a step of irradiating an affected area of a patient that has rheumatoid arthritis with low-dose radiation, wherein the inflammation of rheumatoid arthritis is alleviated by inducing apoptosis of immune cells, and an alternative treatment method, instead of surgery, can be provided to patients with DMARD resistance.

This invention discloses a modified polyester film for tritium-proof ventilated clothing and its preparation method, belonging to the technical field of functional protective clothing. The modified polyester resin for tritium-proof ventilated clothing comprises, by weight, the following components: TPEE resin: 50-70 parts, PVDF resin: 10-20 parts, EBA resin: 20-30 parts, antioxidant: 1-2 parts, and sensitizer: 1-2 parts. The three resins in the modified polyester resin for tritium-proof ventilated clothing have a synergistic effect. Preparing it into a modified polyester film for tritium-proof ventilated clothing significantly improves the tritium permeability, abrasion resistance, and low-temperature heat-sealing properties of the modified polyester film. Furthermore, it can be heat-sealed and then modified with low-dose radiation to enhance the mechanical properties and heat-sealing strength of the tritium-proof ventilated clothing.

A radiation detection panel and a preparation method therefor, and a radiation detector. The radiation detection panel comprises a detection substrate (20) and a scintillator layer (10) located on one side of the detection substrate (20), wherein the scintillator layer (10) has scintillator units (100) arranged in an array; each scintillator unit (100) includes at least two layers of stacked scintillator sub-units; in any two adjacent layers of scintillator sub-units, the scintillator subunits on the side closer to the detection substrate (20) have a higher conversion rate for radiation rays than the scintillator subunits on the side farther away from the detection substrate (20), and the scintillator subunits on the side closer to the detection substrate (20) have a lower tolerance to the radiation rays than the scintillator subunits on the side farther away from the detection substrate (20). Therefore, the radiation detection panel can use a low-dose radiation source to achieve high-resolution radiation imaging.

The invention provides a method for radiation modification of ultra-high molecular weight polyethylene powder and application thereof, and the method comprises the following steps: carrying out radiation treatment on ultra-high molecular weight polyethylene primary powder at a dosage of less than or equal to 5 kGy. The ultra-high molecular weight polyethylene primary powder is treated through low-dose radiation, the molecular chain entanglement density and the molecular weight distribution index of the ultra-high molecular weight polyethylene primary powder are effectively reduced, so that the high-performance ultra-high molecular weight polyethylene powder is obtained, and a molded product of the ultra-high molecular weight polyethylene powder has excellent comprehensive mechanical properties.