相关实验视频
Updated: Feb 15, 2026
07:42
Nerve Excitability Assessment in Chemotherapy-induced Neurotoxicity
Published on: April 26, 2012
18.6K
系统化疗对细胞还原性手术和高温腹腔内化疗在尾癌患者中的作用
Gagandeep Brar1, Dani Castillo1, Thinzar Lwin2
1Department of Medical Oncology & Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA.
Clinical colorectal cancer
|February 13, 2026
概括
对于带有腹膜转移的尾癌,加热腹膜内化疗 (HIPEC) 与手术相结合改善了生存率. 额外的全身化疗没有显著改善结果,质疑其常规使用.
科学领域:
- 手术瘤学手术瘤学
- 胃肠道瘤学 胃肠道瘤学
- 癌症治疗方法 癌症治疗方法
背景情况:
- 尾癌常常呈现出腹转移.
- 细胞还原性手术 (CRS) 与加热的腹腔内化疗 (HIPEC) 是转移性尾癌的标准.
- 额外的全身化疗的益处尚不清楚.
研究的目的:
- 评估系统化疗对尾癌患者的存活影响,这些患者患有经过CRS和HIPEC的腹转移.
- 为了比较单独的手术,辅助化疗,术后化疗和基于HIPEC的疗法的结果.
主要方法:
- 从国家癌症数据库 (2018-2022) 分析了888名患有非乳腺尾癌和腹腔内转移的患者.
- 通过治疗分层的患者:没有化疗,辅助化疗,外科化疗,HIPEC与/没有全身疗法.
- 使用卡普兰-梅尔和考克斯回归分析的生存率,对共变量进行调整.
主要成果:
- 与单独手术相比,基于HIPEC的治疗显著降低了死亡风险 (HR 0.57).
- 辅助性或术后化疗没有显示出比单独手术显著的生存益处.
- 伴随性疾病负担趋向于更糟糕的生存率 (HR 1.81).
结论:
- 除了CRS和HIPEC外,系统化疗 (辅助或外科手术期间) 并没有改善带有腹膜转移的尾癌的存活率.
- 研究结果不支持这些患者常规使用额外的全身疗法.
- 在这种情况下,基于HIPEC的治疗是改善生存率的关键组成部分.
相关概念视频
01:21Chemotherapy-Induced Nausea and Vomiting: Cannabinoids
802
Tetrahydrocannabinol (THC) is a phytocannabinoid that primarily interacts with the CB1 receptor, a type of G protein-coupled receptor (GPCR) predominantly in and around the chemoreceptor trigger zone (CTZ) and emetic center. THC also blocks the serotonin receptor activity in the dorsal vagal complex (DVC) by inhibiting serotonin release. THC exerts its anti-emetic effects through these interactions, which are beneficial for patients undergoing chemotherapy.
Two synthetic agonists of THC,...
Two synthetic agonists of THC,...
802
01:29Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists
932
Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
Phenothiazines, such as prochlorperazine...
932
01:27Chemotherapy-Induced Nausea and Vomiting: 5-HT3 Receptor Antagonists
715
5-HT3 receptor antagonists, such as dolasetron, granisetron (Kytril), ondansetron (Zofran), and palonosetron (Axoli), are crucial in managing chemotherapy-induced nausea and vomiting (CINV) and postoperative nausea. These drugs selectively block 5-HT3 receptors in the visceral vagal and spinal afferent nerves, chemoreceptor trigger zone, and the vomiting center. They have a rapid onset of action and can be given as a single dose before chemotherapy. Ondansetron and granisetron, in particular,...
715
01:28Chemotherapy-Induced Nausea and Vomiting: Neurokinin-1 Receptor Antagonists
652
Neurokinin 1 (NK1) receptors are distributed across the GI tract, vagal afferents, and key CNS regions including the central vomiting center and chemoreceptor trigger zone (CTZ) Chemotherapy agents stimulate enterochromaffin cells in the gastrointestinal (GI) tract to release large amounts of substance P (SP). SP is a neuropeptide released by specific sensory nerves in response to many different stressors, including those in the GI mucosa affected by chemotherapy. SP binds and activates...
652
01:18Second Order systems II
414
In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
414
01:02Role of Septins
2.2K
Septins are the recently discovered fourth major protein component of the cytoskeleton, along with microfilaments, microtubules, and intermediate filaments. These proteins can associate with other cytoskeletal filaments and carry out varied roles or can be free-floating in the cytoplasm.
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
2.2K