相关实验视频
Updated: May 6, 2026

07:48
Engineering a Bilayered Hydrogel to Control ASC Differentiation
Published on: May 25, 2012
14.5K
释放塞拉斯特的动态微环境调节水凝导致尿道无痕修复
Yangwang Jin1, Fei Qin2, Ranxing Yang1
1Department of Urology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai, 200233, China.
Materials today. Bio
|February 25, 2026
概括
一种新的水凝敷料 (CPT-Cel) 通过减少炎症和纤维化,有效地管理尿道损伤的微环境. 这种方法促进了无痕的尿道重建,并改善了动物模型中的狭窄结果.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
背景情况:
- 尿道狭窄是由于受伤后的动态病理微环境引起的,其特点是炎症和纤维化.
- 目前的治疗方法往往无法解决导致痕形成的复杂微环境因素.
研究的目的:
- 设计和评估一种新的水凝敷料 (CPT-Cel),用于无痕的尿道重建.
- 通过控制炎症和纤维化来调节动态尿道微环境.
主要方法:
- 开发一种响应性水凝 (CPT-Cel),释放,并设计为ECM模仿性质.
- 在尿道损伤的动物模型中进行体内测试,以评估修复效率.
- 分析炎症标志物,原沉积和狭窄形成.
主要成果:
- CPT-Cel显示了反应性降解和内容的释放,中断了氧化应激-炎症循环.
- 持续释放的塞拉斯特抑制了纤维细胞的过活化和通过TGF-β/NF-κB通路过度分泌的原蛋白.
- 水凝敷料提供了静血和抗菌功能,加速修复并显著减少动物模型中的原沉积.
结论:
- CPT-Cel有效调节动态尿道微环境,促进无痕修复和改善狭窄的结果.
- 这种充满药物的智能水凝为尿道组织工程和再生策略提供了一个新的范式.
相关概念视频
Ureters
2.2K
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
2.2K
Urethra
7.1K
The urethra is a hollowed tubular organ through which urine is expelled from the body. This structure extends from the bladder to the external opening, allowing urine to be released.
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...
7.1K
Urodynamic Studies: Uroflowmetry
9.5K
Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
9.5K
Urologic Endoscopic Procedure: Cystoscopic Examination
6.6K
Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
6.6K
Microbiota of the Urogenital Tract
59
The human urogenital system, once thought to be sterile in healthy individuals, is now recognized as a complex microbial habitat. Advancements in molecular sequencing techniques have revealed that even in healthy adults, the kidneys and bladder harbor microbial populations similar to those found in the distal urethra, albeit in much lower abundance. These resident microorganisms, while generally innocuous, can become opportunistic pathogens under conditions that alter the urogenital...
59

