Biomedical subjects

Yuan-Li Zhao

Publications and source records attributed to Yuan-Li Zhao.

4 recordsLinked to original sources

PubMed2006

[Study the Raman spectroscopy of breast tumor limbic tissue].

The confocal Raman micro-spectra of breast tumor limbic fat tissues of forty cases after surgery were collected. Substantial differences were found among breast infiltrative ductal carcinoma, hyperplasia and fibroadenoma, which is possibly to be used as a character of breast cancer and other breast tumor and offers the evidence for the breast tumor diagnosis. So, the Raman spectroscopy of the breast limbic fat tissue is of great value.

Adipose Tissue↗

PubMed2006

[Study on absorption spectra of malignant plasma of esophagus].

There are too many articles about diagnosing cancers by the content of tumor chemical signs in plasma, but there are few articles about diagnosing them by spectroscopy. The present article belongs to the few. The authors can differentiate the normal and malignant esophagus by the statistic and analysis of absorption spectra after their plasmas are detected by spectrophotometry, which provide a new approach to quickly diagnosing malignant esophagus.

Biomarkers, Tumor↗

PubMed2004

[Application of computer-assistant neuronavigation in spinal operation].

OBJECTIVE: To discuss the efficacy, accuracy, and safety of computer-assistant neuronavigation in operation of vertebrae and spinal cord. METHODS: The data of computer-assistant neuronavigation used in the operation for 41 cases, including 9 cases of neurinoma, 10 cases of ependymoma, 5 cases of angioreticuloma, 7 cases of spinal meningioma, 4 cases of astrocytoma, and 1 case of cysticercosis, and 1 case of osteoblastoma. from March 2001 to December 2003 were reviewed. RESULTS: Twenty-six screws were fixed in 4 patients. Total removal was succeeded in 33 of the 37 cases of 37 spinal tumors and all patients survived after operation. CONCLUSION: Image-guided navigation for spinal surgery is able to save time and reduce operational lesion. More importantly, it improves neurosurgeon's comprehension of spinal anatomy.

Adolescent↗

PubMed2004

[The study of absorption spectrum for cell substrate].

The authors collected the absorption spectrum of RPMI 1640 and DMEM substrates that cultivated Hela and CNE by UV-3101 spectrophotometer and analysed the absorbability of proteins in the substrate. The absorption peaks of the RPMI 1 640 culture medium that cultivated cells for different times shifted from 227 to 222 or 218 nm and from 278 to 280 nm respectively; while during growing course of cultivated cells, one of the absorption peaks of DMEM culture medium shifted from 224 nm to one near 221 nm, and the absorption peak 278 nm almost had no shift. All of these shifts show that the content of each amino acid such as tryptophan and casein has already changed. That is, during the growing course of cultivating cancer cells, the tryptophan and casein were not depleted equivalently. In the growth period of Hela and CNE, they consumed different amino acid. So they need different component proportion for amino acid.

Absorption↗