Search

Your search keyword '"Chen, Huiqing"' showing total 372 results
Start Over Author "Chen, Huiqing"
372 results on '"Chen, Huiqing"'

24. Prognostic significance of lymph node ratio in ovarian cancer

Author

Tong Xiaoxia, Li Haoran, Chen Huiqing, Zhai Dong, Pang Yangyang, Lin Ruyin, and Xu Yuan

Subjects
lymph node, serous epithelial ovarian cancer, overall survival, Medicine
Abstract

Lymphadenectomy is critical in the clinical prognosis of ovarian cancer patients. Therefore, we assessed whether lymph node ratio (LNR) has predictive value on overall survival (OS) of patients with serous epithelial ovarian cancer (SEOC). A total of 7,815 eligible SEOC patients were identified from the Surveillance, Epidemiology, and End Results (SEER) database, who underwent surgical resection between 1973 and 2013. We used the time-dependent receiver operating characteristic (ROC) curve and the area under curve to determine the optimal cut-off value of LNR. The predictive role of LNR was analyzed by Cox proportional hazards regression model. The effects of LNR and positive lymph nodes (PLN) on OS were evaluated by comparing the time-dependent ROC curves. The time-dependent ROC curves showed that the optimal LNR cut-off value was 42.0% for nodal-positive SEOC. As shown in Kaplan-Meier survival curves, survival was significantly poorer for all patients with LNR≥42.0% (log-rank test: P

Published
2019
Full Text
View/download PDF

32. Protein availability on Qinghai–Tibetan Plateau meadows determines density and life-history characteristics of plateau pikas (Ochotona curzoniae).

Author

Wu, Xueqin, Shang, Guozhen, Chen, Huiqing, Wu, Yan, Hou, Chu, Yang, Yuangang, Zhang, Lu, Cao, Yifan, and Bian, Jianghui

Subjects
MEADOWS, MOUNTAIN meadows, MOUNTAIN ecology, PLATEAUS, OVERGRAZING, PLANT nutrients
Abstract

Plateau pikas (Ochotona curzoniae) play a keystone role in the alpine meadow ecosystem on the Qinghai–Tibetan Plateau (QTP). For decades, alpine meadows on the QTP have suffered from severe degradation, predominantly due to livestock grazing and frequent dramatic increases in plateau pikas. The cause has long been thought to be that livestock grazing provides open habitats for pikas. However, open habitats with low food nutrient quality are insufficient to maintain high-density populations. Feeding facilitation is a process or action undertaken by one species whose activity benefits another species. However, the facilitative effects on population consequences remain unclear. Here, we examined the impact of feeding facilitation on the population dynamics of plateau pikas. We hypothesize that the high protein amount provided by meadows that have been overgrazed would be an important factor leading to dramatic increases in plateau pikas. We found that plateau pikas preferred high-protein foods, and relatively abundant high-protein food resources were found in meadows following high levels of livestock grazing. Body mass and amount of protein in stomach digesta of pikas were higher in moderately and heavily grazed meadows than in lightly grazed meadow. Thus, pika population density was associated with high-protein food resources. A supplemental protein experiment confirmed that high-protein foods led to higher pika population density by increasing reproductive performance. Livestock grazing increased the abundance of plateau pikas by shifting plant nutrient contents toward higher protein conditions favorable to them. Feeding facilitation is an important factor that causes a dramatic increase in plateau pikas. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

45. BmNPV Orf 65 (Bm65) Is Identified as an Endonuclease Directly Facilitating UV-Induced DNA Damage Repair

Author

Tang, Qi, primary, Liu, Yutong, additional, Tang, Jingjing, additional, Chen, Fangying, additional, Qi, Xinyu, additional, Zhu, Feifei, additional, Yu, Qian, additional, Chen, Huiqing, additional, Wu, Peng, additional, Chen, Liang, additional, Guo, Zhongjian, additional, Hu, Zhaoyang, additional, Ma, Shangshang, additional, Chen, Keping, additional, and Li, Guohui, additional

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results