関連する実験動画
Updated: Jan 29, 2026

08:39
Culture of Bladder Cancer Organoids as Precision Medicine Tools
Published on: December 28, 2021
5.4K
ネオアジュバント化学療法を受ける膀胱がん患者におけるサルコペニアと死亡率の予測:多施設共同研究
Alice Pitout1, Charles Mazeaud1,2, Alicia Blondeau1
1Department of Urology, CHRU de Nancy, 54500 Vandoeuvre -lès-Nancy, France.
Cancers
|January 28, 2026
まとめ
サルコペニア(筋肉量の指標)は、ネオアジュバント化学療法を受けている膀胱がん患者の死亡率の重要な予測因子である。本研究は、その予後的価値を強調し、臨床評価の改善のために異なる測定閾値を比較する。
科学分野:
- 腫瘍学;放射線学;老年医学
背景:
- CTスキャンで評価されるサルコペニアは、様々な癌において予後不良因子として知られています。ネオアジュバント化学療法を受けている膀胱がん患者におけるその役割は十分に確立されていません。本研究では、この特定の患者グループにおけるサルコペニアの予後的影響を生存アウトカムについて調査します。
研究 の 目的:
- 膀胱がん患者におけるサルコペニアの生存率に対する予後的意義を評価すること。サルコペニア測定閾値の違いとその予後精度への影響を比較すること。サルコペニアと無増悪生存期間(PFS)および病理学的完全奏効(pCR)との関連を評価すること。
主な方法:
- ネオアジュバント化学療法および膀胱摘出術(2015-2021)を受けた74人の浸潤性尿路上皮癌患者の後ろ向き多施設共同研究。サルコペニアは、化学療法前(BC)および手術前(BS)のCTスキャンを用いた骨格筋指数によって評価されました。主要評価項目:全生存期間。副次評価項目:PFS、pCR、治療合併症。
主要な成果:
- サルコペニアの有病率は、BCで27%、BSで39%でした。サルコペニアは、全死因死亡率の増加(HR 3.38-6.08、p=0.012-0.032)およびPFSの短縮と有意に関連していました。40%がpCRを達成し、35%が再発しました。中央値PFSは25ヶ月でした。
結論:
- サルコペニアは、膀胱がん患者の死亡率に対する独立した再現可能な予後因子です。本研究は、異なる時点(BC対BS)でのサルコペニア閾値の最初の比較を提供します。本研究の結果は、リスク層別化のための臨床診療へのサルコペニア評価の組み込みを示唆しています。
関連する概念動画
Imaging Studies I: Kidney, Ureter, and Bladder Studies
340
Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
340
Predicting Molecular Geometry
45.7K
VSEPR Theory for Determination of Electron Pair Geometries
45.7K
Urinary Bladder
3.4K
The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
3.4K
Mouse Models of Cancer Study
6.5K
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
6.5K
Prediction Intervals
3.4K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
3.4K
Chemotherapy-Induced Nausea and Vomiting: Cannabinoids
779
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,...
779

