Background: A wide range of therapies exist for keloids. But despite the multiple treatment modalities available, keloids still remain a significant challenge for both the clinician and the patient. Objective: To asse...Background: A wide range of therapies exist for keloids. But despite the multiple treatment modalities available, keloids still remain a significant challenge for both the clinician and the patient. Objective: To assess the effectiveness and safety of debulking of keloid with intralesional injection of 5-flurouracil and triamcinolone in comparison to intralesional injection of 5-flurouracil and triamcinolone alone. Patient and Methods: This single blinded comparative therapeutic outpatient based study was done at the Department of Dermatology, Baghdad Teaching Hospital during the period from February 2011 to February 2013. Twenty-three patients with 52 lesions were enrolled in the study and consisted of two groups: Group A (26 lesions): Treated by intralesional injection of combination of 5-flurouracil and triamcinolone acetonide and repeated every month;Group B (26 lesions): Debulking was carried out first and then injection of combination of 5-flurouracil and triamcinolone acetonide at time of operation and then repeated injection monthly. Evaluation was performed by scoring system with 5 criteria (redness, elevation, hardness, itching and tenderness). The response was graded as no response, minimal, moderate or complete response. Results: Both modalities of treatments showed significant results in treating keloid, but the intralesional therapy alone was slightly better than debulking plus intralesional and no systemic adverse effects were noticed in both groups. Conclusion: Both modalities of therapy were effective in treatment of keloid, and there was no much difference between them.展开更多
目的探讨甲基转移酶5(methyltransferase-like 5,METTL5)在三阴乳腺癌(triple-negative breast cancer,TNBC)中的作用和潜在机制。方法采用免疫组织化学方法和Western blot检测TNBC肿瘤组织和细胞系中METTL5的表达情况。用靶向METTL5的s...目的探讨甲基转移酶5(methyltransferase-like 5,METTL5)在三阴乳腺癌(triple-negative breast cancer,TNBC)中的作用和潜在机制。方法采用免疫组织化学方法和Western blot检测TNBC肿瘤组织和细胞系中METTL5的表达情况。用靶向METTL5的shRNA(shRNA-METTL5)转染TNBC细胞后,用CCK-8、集落形成、伤口愈合以及Transwell实验分别检测细胞增殖活性、迁移与侵袭,Western blot检测Wnt/β-catenin信号关键蛋白的表达。构建异种移植瘤模型,验证敲降METTL5对TNBC细胞在体内生长以及Wnt/β-catenin信号活性的影响。结果METTL5在TNBC肿瘤组织和细胞系中表达上调(P<0.01)。敲降METTL5可抑制TNBC细胞的增殖、迁移和侵袭并降低了Wnt/β-catenin信号分子β-catenin、细胞周期蛋白(Cyclin)D1、基质金属蛋白酶(MMP)-2和MMP-7的表达(均P<0.01)。体内实验显示,敲降METTL5减缓了移植瘤生长和Wnt/β-catenin信号活性。结论敲降METTL5能抑制TNBC细胞的增殖、迁移与侵袭,其作用可能与抑制Wnt/β-catenin信号通路有关。展开更多
文摘Background: A wide range of therapies exist for keloids. But despite the multiple treatment modalities available, keloids still remain a significant challenge for both the clinician and the patient. Objective: To assess the effectiveness and safety of debulking of keloid with intralesional injection of 5-flurouracil and triamcinolone in comparison to intralesional injection of 5-flurouracil and triamcinolone alone. Patient and Methods: This single blinded comparative therapeutic outpatient based study was done at the Department of Dermatology, Baghdad Teaching Hospital during the period from February 2011 to February 2013. Twenty-three patients with 52 lesions were enrolled in the study and consisted of two groups: Group A (26 lesions): Treated by intralesional injection of combination of 5-flurouracil and triamcinolone acetonide and repeated every month;Group B (26 lesions): Debulking was carried out first and then injection of combination of 5-flurouracil and triamcinolone acetonide at time of operation and then repeated injection monthly. Evaluation was performed by scoring system with 5 criteria (redness, elevation, hardness, itching and tenderness). The response was graded as no response, minimal, moderate or complete response. Results: Both modalities of treatments showed significant results in treating keloid, but the intralesional therapy alone was slightly better than debulking plus intralesional and no systemic adverse effects were noticed in both groups. Conclusion: Both modalities of therapy were effective in treatment of keloid, and there was no much difference between them.