论文部分内容阅读
血卟啉对恶性肿瘤比对正常组织具有更大的亲和性,吸收血卟啉的恶性瘤细胞在紫外光或兰紫光激发下呈桔红色萤光,可借以诊断恶性肿瘤,尤利于早期诊断。吸收血卟啉的恶性肿瘤细胞,在一定波长的光照射后能迅速破坏,而正常组织受损不显,又可用于治疗恶性肿瘤。这可能是照射过程中产生的单态氧(singlet Oxygen)作用的结果。七十年代中期才用激光代替红、白光与血卟啉相结合作诊治肿瘤研究。
Hematoporphyrins have a greater affinity for malignant tumors than normal tissues. Hematoporphyrin-absorbing malignant tumor cells are orange-red fluorescent under the excitation of ultraviolet light or blue-violet light, which can be used to diagnose malignant tumors, especially for early diagnosis. . Malignant tumor cells that absorb hematoporphyrins can rapidly destroy after irradiation with certain wavelengths of light, but normal tissues are not damaged, and can be used for the treatment of malignant tumors. This may be the result of the singlet oxygen effect produced during irradiation. In the mid-1970s, lasers were used instead of red, white, and hematoporphyrins to cooperate in the diagnosis and treatment of tumors.