BACKGROUND Bleeding from gastroesophageal varices(GOV)is a serious complication in patients with liver cirrhosis,carrying a very high mortality rate.For secondary prophylaxis against initial and recurrent bleeding,end...BACKGROUND Bleeding from gastroesophageal varices(GOV)is a serious complication in patients with liver cirrhosis,carrying a very high mortality rate.For secondary prophylaxis against initial and recurrent bleeding,endoscopic therapy is a critical intervention.Endoscopic variceal clipping for secondary prophylaxis in adult GOV has not been reported.CASE SUMMARY A 66-year-old man with cirrhosis was admitted to our hospital complaining of asthenia and hematochezia for 1 wk.His hemoglobin level and red blood cell counts were significantly decreased,and his fecal occult blood test was positive.An enhanced computed tomography of the abdomen showed GOV.The patient was diagnosed with hepatitis B cirrhosis-related GOV bleeding.A series of palliative treatments were administered,resulting in significant clinical improvement.Subsequently,an endoscopic examination revealed severe gastric fundal varices,prompting endoscopic variceal clipping.There were no further episodes of gastrointestinal bleeding.The GOV improved significantly on follow-up imaging and was confirmed as improved on endoscopy at the 5th post-operative month.CONCLUSION Our results suggest that endoscopic clipping is an inexpensive,safe,easy,effective,and tolerable method for the secondary prophylaxis of bleeding from gastric type 2 GOV.However,additional research is indicated to confirm its longterm safety and efficacy.展开更多
Improving the efficacy of phytoextraction is critical for its successful application in metal contaminated soils. Mineral nutrition affects plant growth and metal absorption and subsequently the accumulation of heavy ...Improving the efficacy of phytoextraction is critical for its successful application in metal contaminated soils. Mineral nutrition affects plant growth and metal absorption and subsequently the accumulation of heavy metal through hyper-accumulator plants. This study assessed the effects of di-hydrogen phosphates （KH2PO4, Ca（H2PO4）2, NaH2PO4 and NH4H2PO4） application at three levels （22, 88 and 352 mg P/kg soil） on Sedum alfredii growth and metal uptake by three consecutive harvests on aged and Zn/Cd combined contaminated paddy soil. The addition of phosphates （P） significantly increased the amount of Zn taken up by S. alfredii due to increased shoot Zn concentration and dry matter yield （DMY） （P 〈 0.05）. The highest phytoextraction of Zn and Cd was observed in KH2PO4 and NH4H2PO4 treatment at 352 mg P/kg soil. The amount of Zn removed by phytoextraction increased in the order of 1st clipping 〈 2nd clipping 〈 3rd clipping, and for Cd extraction the order was 2nd clipping 〈 1st clipping 〈 3rd clipping. These results indicate that the application of P fertilizers coupled with multiple cuttings can enhance the removal of Zn and Cd from contaminated soils by S. alfredii, thus shortening the time needed for accomplishing remediation goals.展开更多
文摘BACKGROUND Bleeding from gastroesophageal varices(GOV)is a serious complication in patients with liver cirrhosis,carrying a very high mortality rate.For secondary prophylaxis against initial and recurrent bleeding,endoscopic therapy is a critical intervention.Endoscopic variceal clipping for secondary prophylaxis in adult GOV has not been reported.CASE SUMMARY A 66-year-old man with cirrhosis was admitted to our hospital complaining of asthenia and hematochezia for 1 wk.His hemoglobin level and red blood cell counts were significantly decreased,and his fecal occult blood test was positive.An enhanced computed tomography of the abdomen showed GOV.The patient was diagnosed with hepatitis B cirrhosis-related GOV bleeding.A series of palliative treatments were administered,resulting in significant clinical improvement.Subsequently,an endoscopic examination revealed severe gastric fundal varices,prompting endoscopic variceal clipping.There were no further episodes of gastrointestinal bleeding.The GOV improved significantly on follow-up imaging and was confirmed as improved on endoscopy at the 5th post-operative month.CONCLUSION Our results suggest that endoscopic clipping is an inexpensive,safe,easy,effective,and tolerable method for the secondary prophylaxis of bleeding from gastric type 2 GOV.However,additional research is indicated to confirm its longterm safety and efficacy.
基金supported by the National Natural Science Foundation of China (No. 30630046, 40701074)the National High Technology Research and Development Program of China (No. 2009AA06Z316)+1 种基金the Ministry of Environmental Protection Program of China(No. 2011467057)the Shanghai Tongji Gao Tingyao Environmental Science & Technology Development Foundation (7th Winner, 2010)
文摘Improving the efficacy of phytoextraction is critical for its successful application in metal contaminated soils. Mineral nutrition affects plant growth and metal absorption and subsequently the accumulation of heavy metal through hyper-accumulator plants. This study assessed the effects of di-hydrogen phosphates （KH2PO4, Ca（H2PO4）2, NaH2PO4 and NH4H2PO4） application at three levels （22, 88 and 352 mg P/kg soil） on Sedum alfredii growth and metal uptake by three consecutive harvests on aged and Zn/Cd combined contaminated paddy soil. The addition of phosphates （P） significantly increased the amount of Zn taken up by S. alfredii due to increased shoot Zn concentration and dry matter yield （DMY） （P 〈 0.05）. The highest phytoextraction of Zn and Cd was observed in KH2PO4 and NH4H2PO4 treatment at 352 mg P/kg soil. The amount of Zn removed by phytoextraction increased in the order of 1st clipping 〈 2nd clipping 〈 3rd clipping, and for Cd extraction the order was 2nd clipping 〈 1st clipping 〈 3rd clipping. These results indicate that the application of P fertilizers coupled with multiple cuttings can enhance the removal of Zn and Cd from contaminated soils by S. alfredii, thus shortening the time needed for accomplishing remediation goals.
