Mechanical transplanting has been applied to rice cultivation to save labor costs and ease labor shortages in Asian countries, especially in China. However, little information is available related to the characteristi...Mechanical transplanting has been applied to rice cultivation to save labor costs and ease labor shortages in Asian countries, especially in China. However, little information is available related to the characteristics of agronomic performance when comparing inter-sub-specific hybrid rice(IHR) and inbred japonica rice(IJR) under mechanical transplanting method. In 2013 and 2014, field experiments were conducted using IHR(Yongyou 2640) and IJR(Wuyunjing 24) under two cultivation patterns, that is, pot seedlings mechanically transplanted(PS) and carpet seedlings mechanically transplanted(CS). Grain yield, yield components, leaf area index(LAI), leaf area duration(LAD), aboveground biomass, crop growth rate(CGR), nitrogen(N) uptake, and N accumulation were investigated. When compared with CS, PS displayed significantly increased grain yield for both varieties because the larger sink size allowed higher N accumulation from panicle initiation to maturity. Moreover, total aboveground biomass under PS increased significantly compared with that under CS; that is, higher photosynthetic productivity resulted from a greater LAI and higher LAD during the grain filling stage. Higher N absorption capacity in the middle and late growth periods resulted in significantly enhanced total N uptake under PS. When compared with IJR for both treatments, IHR generated 75.2% more grain yield. However, the characteristics creating high yield of IHR were different from those of IJR. Greater aboveground biomass production as well as higher N uptake and accumulation created higher grain yield in IHR than in IJR. These results suggest higher yield could be achieved using PS with IHR, attributing to exploit both yield superiority and productive potential.展开更多
In order to study the effects of transplanting methods on the quality and yield of Angelica sinensis,the average fresh taproot diameter,length,weight and actual yield of the experimental plot were measured through the...In order to study the effects of transplanting methods on the quality and yield of Angelica sinensis,the average fresh taproot diameter,length,weight and actual yield of the experimental plot were measured through the planting experiment of A.sinensis under the same geographical environment and different cultivation methods during 2019-2020.The results show that the quality and yield of A.sinensis in inter-film cultivation were better than that of film-in-film cultivation,and it is more conducive to improving the economic income of the majority of growers from medicinal material cultivation.展开更多
AIM To avoid desensitization protocols and ABO incompatible kidney transplantation(KT) due to high costs and increased risk of infections from intense immunosuppression.METHODS We present institutional ethical review ...AIM To avoid desensitization protocols and ABO incompatible kidney transplantation(KT) due to high costs and increased risk of infections from intense immunosuppression.METHODS We present institutional ethical review board- approved study of single center 6-way kidney exchange transplantation. The participants comprised ABO incompatibility(n = 1); positive cross-match and/or presence of donor specific antibody(n = 5). The average time required from registration in kidney paired donation(KPD) registry to find suitable donors was 45 d and time required to perform transplants after legal permission was 2 mo. RESULTS Graft and patient survival were 100%, and 100%, respectively. One patient had biopsy-proven acute borderline T cell rejection(Banff update 2013, type 3). Mean serum creatinine was 0.8 mg/dL at 9 mo followup. The waiting time in KPD was short as compared to deceased donor KT. CONCLUSION We report first non-simultaneous, single center, 6-way kidney exchange transplantation from India. Our experience will encourage other centers in India to undertake this practice.展开更多
Objective To investigate the clinical characteristics of oral mucositis(OM)in patients with hematological diseases who received secondary allogeneic hematopoietic stem cell transplantation(allo-HSCT).Methods This stud...Objective To investigate the clinical characteristics of oral mucositis(OM)in patients with hematological diseases who received secondary allogeneic hematopoietic stem cell transplantation(allo-HSCT).Methods This study retrospectively analyzed data on 58 patients with hematological diseases who underwent secondary allo-HSCT at the Peking University People's Hospital from January 2018 to December 2023.The control group included 116 randomized patients after primary allo-HSCT during this period(1:2 ratio)with matched gender,age,and diagnosis.The incidence of OM and overall survival(OS)were compared between the two groups.Results The secondary allo-HSCT and control groups reported 17(29.31%)and 16(13.79%)cases that developed 0M(P=0.014),whereas 10(17.24%)and 7(6.03%)developed grade≥30M(P=0.019).The median time for OM to occur was 4 days(1-9 days)and 5 days(1-10 days)post transplantation in the secondary allo-HSCT and control groups,respectively.The multivariate analysis revealed that the use of wholebody radiation therapy as the main pretreatment regimen was an independent risk factor for OM occurrence(P=0.019).Among patients with OM,an age of<55 years was a risk factor for developing grade 3-4 OM(P=0.028).All patients who underwent the secondary allo-HSCT received granulocyte implantation.The median time of granulocyte implantation in 17 patients with OM was 14 days post transplantation,whereas the median time of granulocyte implantation in patients without OM was 12 days post transplantation.The difference was not statistically significant(P=0.721).The presence of OM did not affect the occurrence of acute graft-versus-host disease(P=0.938).No statistically significant difference was observed in the 2-year OS rate between patients with and without OM during the secondary allo-HSCT(51.9%us 50.4%,P=0.943).No statistically significant difference was observed in the 2-year OS rate between patients with OM undergoing the secondary allo-HSCT and those undergoing the primary allo-HSCT(51.9%us 81.3%,P=0.185).Conclusion The proportion of patients with concurrent OM is significantly increased in the secondary allo-HSCT,and the severity is more severe.Whether or not to merge OM does not affect granulocyte implantation,acute graft-versus-host disease incidence,and 2-year OS rate.展开更多
基金the National Key Research Program of China(2016YFD0300503)the Special Fund for Agro-scientific Research in the Public Interest,China(201303102)+2 种基金the Key Research Program of Jiangsu Province,China(BE2016344)the Major Independent Innovation Project in Jiangsu Province,China(CX(15)1002)a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions,China
文摘Mechanical transplanting has been applied to rice cultivation to save labor costs and ease labor shortages in Asian countries, especially in China. However, little information is available related to the characteristics of agronomic performance when comparing inter-sub-specific hybrid rice(IHR) and inbred japonica rice(IJR) under mechanical transplanting method. In 2013 and 2014, field experiments were conducted using IHR(Yongyou 2640) and IJR(Wuyunjing 24) under two cultivation patterns, that is, pot seedlings mechanically transplanted(PS) and carpet seedlings mechanically transplanted(CS). Grain yield, yield components, leaf area index(LAI), leaf area duration(LAD), aboveground biomass, crop growth rate(CGR), nitrogen(N) uptake, and N accumulation were investigated. When compared with CS, PS displayed significantly increased grain yield for both varieties because the larger sink size allowed higher N accumulation from panicle initiation to maturity. Moreover, total aboveground biomass under PS increased significantly compared with that under CS; that is, higher photosynthetic productivity resulted from a greater LAI and higher LAD during the grain filling stage. Higher N absorption capacity in the middle and late growth periods resulted in significantly enhanced total N uptake under PS. When compared with IJR for both treatments, IHR generated 75.2% more grain yield. However, the characteristics creating high yield of IHR were different from those of IJR. Greater aboveground biomass production as well as higher N uptake and accumulation created higher grain yield in IHR than in IJR. These results suggest higher yield could be achieved using PS with IHR, attributing to exploit both yield superiority and productive potential.
基金Supported by the Project of Qinghai Provincial Key Laboratory of Disaster Prevention and Mitigation。
文摘In order to study the effects of transplanting methods on the quality and yield of Angelica sinensis,the average fresh taproot diameter,length,weight and actual yield of the experimental plot were measured through the planting experiment of A.sinensis under the same geographical environment and different cultivation methods during 2019-2020.The results show that the quality and yield of A.sinensis in inter-film cultivation were better than that of film-in-film cultivation,and it is more conducive to improving the economic income of the majority of growers from medicinal material cultivation.
文摘AIM To avoid desensitization protocols and ABO incompatible kidney transplantation(KT) due to high costs and increased risk of infections from intense immunosuppression.METHODS We present institutional ethical review board- approved study of single center 6-way kidney exchange transplantation. The participants comprised ABO incompatibility(n = 1); positive cross-match and/or presence of donor specific antibody(n = 5). The average time required from registration in kidney paired donation(KPD) registry to find suitable donors was 45 d and time required to perform transplants after legal permission was 2 mo. RESULTS Graft and patient survival were 100%, and 100%, respectively. One patient had biopsy-proven acute borderline T cell rejection(Banff update 2013, type 3). Mean serum creatinine was 0.8 mg/dL at 9 mo followup. The waiting time in KPD was short as compared to deceased donor KT. CONCLUSION We report first non-simultaneous, single center, 6-way kidney exchange transplantation from India. Our experience will encourage other centers in India to undertake this practice.
文摘Objective To investigate the clinical characteristics of oral mucositis(OM)in patients with hematological diseases who received secondary allogeneic hematopoietic stem cell transplantation(allo-HSCT).Methods This study retrospectively analyzed data on 58 patients with hematological diseases who underwent secondary allo-HSCT at the Peking University People's Hospital from January 2018 to December 2023.The control group included 116 randomized patients after primary allo-HSCT during this period(1:2 ratio)with matched gender,age,and diagnosis.The incidence of OM and overall survival(OS)were compared between the two groups.Results The secondary allo-HSCT and control groups reported 17(29.31%)and 16(13.79%)cases that developed 0M(P=0.014),whereas 10(17.24%)and 7(6.03%)developed grade≥30M(P=0.019).The median time for OM to occur was 4 days(1-9 days)and 5 days(1-10 days)post transplantation in the secondary allo-HSCT and control groups,respectively.The multivariate analysis revealed that the use of wholebody radiation therapy as the main pretreatment regimen was an independent risk factor for OM occurrence(P=0.019).Among patients with OM,an age of<55 years was a risk factor for developing grade 3-4 OM(P=0.028).All patients who underwent the secondary allo-HSCT received granulocyte implantation.The median time of granulocyte implantation in 17 patients with OM was 14 days post transplantation,whereas the median time of granulocyte implantation in patients without OM was 12 days post transplantation.The difference was not statistically significant(P=0.721).The presence of OM did not affect the occurrence of acute graft-versus-host disease(P=0.938).No statistically significant difference was observed in the 2-year OS rate between patients with and without OM during the secondary allo-HSCT(51.9%us 50.4%,P=0.943).No statistically significant difference was observed in the 2-year OS rate between patients with OM undergoing the secondary allo-HSCT and those undergoing the primary allo-HSCT(51.9%us 81.3%,P=0.185).Conclusion The proportion of patients with concurrent OM is significantly increased in the secondary allo-HSCT,and the severity is more severe.Whether or not to merge OM does not affect granulocyte implantation,acute graft-versus-host disease incidence,and 2-year OS rate.
