TAILIEUCHUNG - Age-Related Macular Degeneration (part 5)

Lưu giữ xảy ra trong vòng 5 phút với sự tiến triển đến các phân đoạn bên ngoài trong vòng 20 phút. Không có BPD-MA được phát hiện trong màng mạch hoặc các tế bào nhận kích thích ánh sáng ở 2 giờ | Photodynamic Therapy 209 choroid and RPE was confirmed using fluorescence microscopy in rabbits. Retention occurred within 5 min with progression to the outer segments within 20 min. No BPD-MA was detected within the choroid or photoreceptors at 2 h however a small trace was detected in the RPE at 24 h 13 . A similar pharmacokinetic pattern was observed in monkeys using in vivo fluorescence imaging 14 . The long-term effects on the retina and choroid were evaluated in cynomolgus monkeys with experimental CNV 15 . Fundus photography and angiography analyses were performed at 24 h and then weekly for 4-7 weeks following a treatment of mg BPD-MA kg and a fluence of 150 J cm2. Eyes were examined histologically at the end of the follow-up period. CNV closure also resulted in closure of the choriocapillaris with damage occurring to RPE cells. However these areas appeared to regenerate somewhat in the 4-7week study period. Of 28 CNV lesions followed for 4 weeks 72 remained closed. Lesion retreatment was determined to be needed to sustain vessel closure. The effect of three treatments was evaluated in disease-free primate eyes 16 . Treatments using sensitizer doses of 6 12 or 18 mg m2 20 min after drug infusion and a fluence of 100 J cm2 were performed every 2 weeks. A cumulative dose response was observed damage to the retina choroid and optic nerve was limited in the 6 mg m2 sensitizer subgroup while the higher-dose groups exhibited severe choriocapillaris and photoreceptor damage at 6 weeks. F. Tin Ethyl Etiopurpurin Purlytin SnET2 The purpurin SnET2 has been clinically evaluated for the palliation of symptoms associated with recurrent cutaneous metastatic breast cancer 17 . The sensitizer possesses a large extinction coefficient at 660 nm and since it is hydrophobic it is formulated in a lipid emulsion. SnET2-mediated PDT was found to occlude CNV experimentally induced in rats 18 . SnET2 was intravenously administered at a dose of 1 mg kg the eyes were then .

TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.