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1.
World J Surg ; 2019 Nov 26.
Artigo em Inglês | MEDLINE | ID: mdl-31773219

RESUMO

BACKGROUND: Controversy exists around the locoregional management of the primary tumor for breast cancer associated with synchronous ipsilateral supraclavicular lymph node metastasis (sISLM) due to the rarity of the disease and limited available data. This study aimed to compare outcomes of patients in the Surveillance, Epidemiology, and End Results (SEER) database with sISLM who underwent surgical resection and radiation of the primary tumor with those who did not. METHODS: This population-based retrospective study included breast cancer patients with sISLM without distant metastases from 2004 to 2016 in the SEER database. In this study, patients had been stratified by operative management, and propensity score matching (PSM) had been successfully applied. RESULTS: A total of 1172 breast cancer patients with sISLM were included in the study: 863 (73.6%) of patients underwent the primary tumor resection, and 309 (26.4%) patients did not undergo surgery. The median survival time in the surgery group was longer compared to the nonsurgery group in the overall cohort and the PSM cohort. We concluded that the primary tumor resection was associated with improved survival. Subgroup analysis further demonstrated that local surgery was not inferior to radical surgery. CONCLUSION: For selected breast cancer patients with sISLM, surgery is a promising local intervention which may improve the survival.

2.
Huan Jing Ke Xue ; 39(4): 1704-1712, 2018 Apr 08.
Artigo em Chinês | MEDLINE | ID: mdl-29964996

RESUMO

A modification of the two sludge A2/O-BAF system was used to treat low C/N real domestic sewage. In order to improve the utilization of the carbon source, the effects of two step feeds (pre-anoxic zone and anoxic zone) on denitrifying phosphorus and nitrate removal were studied. According to the formula of material balance for COD, the utilization of carbon source was analyzed and evaluated under different ratios of step feed, simultaneously. The results showed that when the ratio of step feed was 7:3 and the influent concentrations of COD, NH4+-N, TN, and TP were 174.99, 58.19, 59.10, and 5.15 mg·L-1, respectively, their effluent concentrations were 29.48, 4.07, 14.10, and 0.40 mg·L-1, and the removal rates were 82.12%, 92.76%, 75.45%, and 91.20%, respectively. It was found that when the ratio of the denitrifying phosphorus accumulation organisms to the phosphorus accumulation organisms(DPAOs/PAOs) was 98.81%, the efficiencies of denitrifying phosphorus and nitrate removal were optimum. By optimizing step feed, the carbon source was utilized effectively, and the efficiencies of nitrogen and phosphorus removal were improved simultaneously. The theoretical basis has thus been provided for the modification of the two sludge A2/O-BAF system to treat low C/N waste water.


Assuntos
Reatores Biológicos/microbiologia , Desnitrificação , Nitratos/isolamento & purificação , Fósforo/química , Eliminação de Resíduos Líquidos/métodos , Nitrogênio , Esgotos
3.
Zhong Yao Cai ; 29(3): 286-9, 2006 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-16850730

RESUMO

OBJECTIVE: T o determine the quality standard of Yixin Tablet. METHODS: The nature differentiation of Radix Ginseng, Radix Astragali, Rhizoma Chuanxiong, Fructus Schisandrae was determined by TLC and content of salvianolic acid B in Yixin Tablet was determined by HPLC. RESULTS: The nature differentiation separate degree is kind and special attribute was strong. The compounds were base-isolated on the column of C18 which gradient eluted with acetonitrile and H2O (0.05% H3PO4) and detective wavelength was 280 nm. The linearity was obtained over the range of 0.12504-2.50080 microg (r = 0.9999) and the average recovery rate was 99.35%. CONCLUSION: The method is simple, convenient and accurate. The sensitivity is high. It can be used in the quality control of Yixin Tablet.


Assuntos
Benzofuranos/análise , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/normas , Plantas Medicinais/química , Astragalus propinquus/química , Cromatografia Líquida de Alta Pressão/métodos , Cromatografia em Camada Delgada , Combinação de Medicamentos , Estabilidade de Medicamentos , Medicamentos de Ervas Chinesas/administração & dosagem , Panax/química , Controle de Qualidade , Reprodutibilidade dos Testes
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