2024年8月22日 · The UTD classification system uses six ultrasound findings to describe the urinary tracts: anterior-posterior renal pelvic diameter (APRPD) calyceal dilatation, with distinction between central and peripheral calyces postnatally. renal parenchymal thickness, either normal or abnormal. renal parenchymal echogenicity, either normal or abnormal

2022年3月1日 · Urinary tract dilation (UTD), previously known as hydronephrosis, is the most common congenital condition identified on prenatal ultrasonography. UTD can be physiologic and resolve spontaneously or can be caused by various congenital anomalies of the urinary tract, which can lead to renal failure if not treated properly.

The UTD classification system uses six US findings to describe the antenatal and postnatal urinary tract: (1) anterior-posterior renal pelvic diameter (APRPD), (2) calyceal dilation with distinction between central and peripheral caly-ces postnatally, (3) renal parenchymal thickness, (4) renal pa-renchymal appearance, (5) bladder abnormalities a...

2023年10月20日 · 优替德隆（UTD-1）是国内首个自主研发的埃坡霉素类抗肿瘤创新药，在2021年获批用于治疗复发或转移性乳腺癌，为各种分子分型晚期乳腺癌患者带来了更好的治疗选择。 在本期两例病例中，一例晚期三阴性乳腺癌（TNBC）多线经治伴多发转移患者，以及一例激素受体阳性/人类表皮生长因子受体2阴性（HR+/HER2-）晚期乳腺癌伴内脏转移患者均采用了以UTD-1为基础的化疗方案，在长期治疗下突破了传统化疗的使用周期限制，为患者带来了良好 …

1997年1月1日 · In this paper, we will describe the synthesis and characterization of UTD-1 using metal complexes 2 and 3 as templates as well as a preliminary account of the catalytic activity. smaller metal complex Cp2Co + forms the ZSM-48 structure and the larger Cp*2Co + or C p'2Co § form UTD- 1. Figure 3.

2014年5月22日 · UTD1——埃博霉素的类似物——是一种微管稳定剂，在I期临床研究中显示出相当的治疗活性。 在本文中，来自于北京中国医学科学院的徐教授等进行了两个开放式标签、多中心II期临床研究，目的在于评估UTD1单用或UTD1联合卡培他滨对转移性乳腺癌患者的疗效和安全性，本研究在ASCO 2014上刊载。 在两个研究中所纳入的受试者为转移性乳腺癌患者，她们既往接受过紫杉烷类药物、蒽环类药物和/或卡培他滨的治疗。

1999年11月15日 · The synthesis of UTD-1 zeolites using large organic cations appears to proceed through three distinct phases. Initially, a sparingly soluble, (bis(pentamethylcyclopentadienyl)cobalt(III) silicate (Cp ∗ 2 CoOSi ) is formed. This subsequently crystallizes into a layered phase, which transforms to UTD-1 …

1999年6月17日 · A highly crystalline sample of the extra-large-pore, high-silica zeolite UTD-1 has been prepared in fluoride medium. The resulting product (UTD-1F) has a powder diffraction pattern remarkably different from that published for the calcined form of conventionally prepared UTD-1, and it could only be indexed on a monoclinic unit cell.

1995年1月1日 · A novel high silica zeolite referred to as UTD-1 has been prepared using Cp*2CoOH as the template. Preliminary characterization of UTD-1 seems to indicate that UTD-1 is a large pore molecular sieve that has one dimensional channels running in parallel [3,8,9].

The molecular sieve UTD-1 is investigated using scanning and transmission electron microscopies (TEM), solid-state NMR spectroscopy, electron (ED) and X-ray diffraction (XRD), adsorption studies, and catalytic test reactions.