33 research outputs found
Data_Sheet_1_Unraveling the spatialātemporal distribution patterns of soil abundant and rare bacterial communities in Chinaās subtropical mountain forest.docx
IntroductionThe pivotal roles of both abundant and rare bacteria in ecosystem function are widely acknowledged. Despite this, the diversity elevational patterns of these two bacterial taxa in different seasons and influencing factors remains underexplored, especially in the case of rare bacteria.MethodsHere, a metabarcoding approach was employed to investigate elevational patterns of these two bacterial communities in different seasons and tested the roles of soil physico-chemical properties in structuring these abundant and rare bacterial community.Results and discussionOur findings revealed that variation in elevation and season exerted notably effects on the rare bacterial diversity. Despite the reactions of abundant and rare communities to the elevational gradient exhibited similarities during both summer and winter, distinct elevational patterns were observed in their respective diversity. Specifically, abundant bacterial diversity exhibited a roughly U-shaped pattern along the elevation gradient, while rare bacterial diversity increased with the elevational gradient. Soil moisture and N:P were the dominant factor leading to the pronounced divergence in elevational distributions in summer. Soil temperature and pH were the key factors in winter. The network analysis revealed the bacteria are better able to adapt to environmental fluctuations during the summer season. Additionally, compared to abundant bacteria, the taxonomy of rare bacteria displayed a higher degree of complexity. Our discovery contributes to advancing our comprehension of intricate dynamic diversity patterns in abundant and rare bacteria in the context of environmental gradients and seasonal fluctuations.</p
Assembly of Oxygen-Stuffed Supertetrahedral T3-SnOS Clusters into Open Frameworks with Single Sn<sup>2+</sup> Ion as Linker
Here
three new types of cluster-based tin oxysulfides are reported.
Single-crystal X-ray diffraction analysis reveals that both compound <b>1</b> [Sn]<sub>2</sub>[Sn<sub>40</sub>O<sub>16</sub>S<sub>74</sub>]Ā(DMA)<sub>4</sub>(DEA)<sub>10</sub>(H<sup>+</sup>-DEA)<sub>12</sub>(H<sub>2</sub>O)<sub>20</sub> (DMA = dimethylamine, DEA <b>=</b> diethylamine) and compound <b>3</b> [Sn]Ā[Sn<sub>40</sub>O<sub>16</sub>S<sub>74</sub>]Ā(H<sup>+</sup>-DMA)<sub>12</sub>(DEA)<sub>4</sub>(H<sub>2</sub><sup>2+</sup>-DACH)<sub>3</sub>(H<sub>2</sub>O)<sub>20</sub> (DACH = 1,2-diaminocyclohexane) are built from oxygen-stuffed
supertetrahedral T3-SnOS clusters with corner-sharing S<sup>2ā</sup> and single Sn<sup>2+</sup> ion as bridging linkers, and compound <b>2</b> [Sn<sub>40</sub>O<sub>16</sub>S<sub>73</sub>]Ā(DMA)Ā(H<sup>+</sup>-TMA)<sub>18</sub>(H<sub>2</sub>O)<sub>14</sub> (TMA = trimethylamine)
is constructed by the interrupted supersupertetrahedral T3,2 clusters.
Such variable and unique linkage modes are very useful for constructing
other types of cluster-based crystalline open-framework chalcogenides.
In addition, compound <b>2</b> is the first case that displays
photoluminescence emission among T3-SnOS-based chalcogenides
Table_1_Unraveling the spatialātemporal distribution patterns of soil abundant and rare bacterial communities in Chinaās subtropical mountain forest.XLS
IntroductionThe pivotal roles of both abundant and rare bacteria in ecosystem function are widely acknowledged. Despite this, the diversity elevational patterns of these two bacterial taxa in different seasons and influencing factors remains underexplored, especially in the case of rare bacteria.MethodsHere, a metabarcoding approach was employed to investigate elevational patterns of these two bacterial communities in different seasons and tested the roles of soil physico-chemical properties in structuring these abundant and rare bacterial community.Results and discussionOur findings revealed that variation in elevation and season exerted notably effects on the rare bacterial diversity. Despite the reactions of abundant and rare communities to the elevational gradient exhibited similarities during both summer and winter, distinct elevational patterns were observed in their respective diversity. Specifically, abundant bacterial diversity exhibited a roughly U-shaped pattern along the elevation gradient, while rare bacterial diversity increased with the elevational gradient. Soil moisture and N:P were the dominant factor leading to the pronounced divergence in elevational distributions in summer. Soil temperature and pH were the key factors in winter. The network analysis revealed the bacteria are better able to adapt to environmental fluctuations during the summer season. Additionally, compared to abundant bacteria, the taxonomy of rare bacteria displayed a higher degree of complexity. Our discovery contributes to advancing our comprehension of intricate dynamic diversity patterns in abundant and rare bacteria in the context of environmental gradients and seasonal fluctuations.</p
Image_1_Risk of hepatitis B virus reactivation and its effect on survival in advanced hepatocellular carcinoma patients treated with hepatic arterial infusion chemotherapy and lenvatinib plus programmed death receptor-1 inhibitors.tif
BackgroundHepatitis B virus (HBV) reactivation is a common complication in hepatocellular carcinoma (HCC) patients treated with chemotherapy or immunotherapy. This study aimed to evaluate the risk of HBV reactivation and its effect on survival in HCC patients treated with HAIC and lenvatinib plus PD1s.MethodsWe retrospectively collected the data of 213 HBV-related HCC patients who underwent HAIC and lenvatinib plus PD1s treatment between June 2019 to June 2022 at Sun Yat-sen University, China. The primary outcome was the risk of HBV reactivation. The secondary outcomes were overall survival (OS), progressionāfree survival (PFS), and treatmentārelated adverse events.ResultsSixteen patients (7.5%) occurred HBV reactivation in our study. The incidence of HBV reactivation was 5% in patients with antiviral prophylaxis and 21.9% in patients without antiviral prophylaxis, respectively. The logistic regression model indicated that for HBV reactivation, lack of antiviral prophylaxis (P=0.003) and tumor diameter (P=0.036) were independent risk factors. The OS and PFS were significantly shorter in the HBV reactivation group than the non-reactivation group (P=0.0023 and P=0.00073, respectively). The number of AEs was more in HBV reactivation group than the non-reactivation group, especially hepatic AEs.ConclusionHBV reactivation may occur in HCC patients treated with HAIC and lenvatinib plus PD1s. Patients with HBV reactivation had shorter survival time compared with non-reactivation. Therefore, HBV-related HCC patients should undergo antiviral therapy and HBV-DNA monitoring before and during the combination treatment.</p
Intrinsic āVacancy Point Defectā Induced Electrochemiluminescence from Coreless Supertetrahedral Chalcogenide Nanocluster
A deep
understanding of distinct functional differences of various
defects in semiconductor materials is conducive to effectively control
and rationally tune defect-induced functionalities. However, such
research goals remain a substantial challenge due to great difficulties
in identifying the defect types and distinguishing their own roles,
especially when various defects coexist in bulk or nanoscale material.
Hereby, we subtly selected a molecular-type semiconductor material
as structural mode composed of supertetrahedral chalcogenide CdāInāS
nanoclusters (NCs) with intrinsic vacancy point defect at the core
site and antisite point defects at the surface of supertetrahedron
and successfully established the correlation of those point defects
with their own electrochemiluminescence (ECL) behaviors. The multichannel
ECL properties were recorded, and the corresponding reaction mechanisms
were also proposed. The predominant radiation recombination path of
ECL emission peak at 585 nm was significantly distinguished from asymmetrically
broad PL emission with a peak at 490 nm. In addition, the ECL performance
of the coreless supertetrahedral chalcogenide nanocluster can be modulated
by atomically precise doping of monomanganese ion at the core vacant
site. A relatively high ECL efficiency of 2.1% was also gained. Actually,
this is the first investigation of ECL behavior of semiconductor materials
based on supertetrahedral chalcogenide nanocluster in aqueous solution.
Current research may open up a new avenue to probe the roles of various
different defects with defined composition and position in the NC.
The versatile and bright ECL properties of CdāInāS NC
combined with tunable ECL potential and ECL peak suggest that the
new kind of NC-based ECL material may hold great promising for its
potential applications in electrochemical analysis, sensing, and imaging
Nonlinear Variation in the Composition and Optical Band Gap of an Alloyed Cluster-Based Open-Framework Metal Chalcogenide
Unexpected nonlinear
variation in the composition and optical band gap was observed in
an alloyed open-framework metal chalcogenide composed of supertetrahedral
clusters. A tentative hypothesis was proposed to explain how the title
compound [In<sub>28</sub>Se<sub>54</sub>(H<sub>2</sub>O)<sub>4</sub>]Ā·24H<sup>+</sup>-PRĀ·<i>n</i>H<sub>2</sub>O (PR
= piperidine) exhibits a limitation in the S-alloying level and a
large variation in the optical band gap
Image_2_Risk of hepatitis B virus reactivation and its effect on survival in advanced hepatocellular carcinoma patients treated with hepatic arterial infusion chemotherapy and lenvatinib plus programmed death receptor-1 inhibitors.tif
BackgroundHepatitis B virus (HBV) reactivation is a common complication in hepatocellular carcinoma (HCC) patients treated with chemotherapy or immunotherapy. This study aimed to evaluate the risk of HBV reactivation and its effect on survival in HCC patients treated with HAIC and lenvatinib plus PD1s.MethodsWe retrospectively collected the data of 213 HBV-related HCC patients who underwent HAIC and lenvatinib plus PD1s treatment between June 2019 to June 2022 at Sun Yat-sen University, China. The primary outcome was the risk of HBV reactivation. The secondary outcomes were overall survival (OS), progressionāfree survival (PFS), and treatmentārelated adverse events.ResultsSixteen patients (7.5%) occurred HBV reactivation in our study. The incidence of HBV reactivation was 5% in patients with antiviral prophylaxis and 21.9% in patients without antiviral prophylaxis, respectively. The logistic regression model indicated that for HBV reactivation, lack of antiviral prophylaxis (P=0.003) and tumor diameter (P=0.036) were independent risk factors. The OS and PFS were significantly shorter in the HBV reactivation group than the non-reactivation group (P=0.0023 and P=0.00073, respectively). The number of AEs was more in HBV reactivation group than the non-reactivation group, especially hepatic AEs.ConclusionHBV reactivation may occur in HCC patients treated with HAIC and lenvatinib plus PD1s. Patients with HBV reactivation had shorter survival time compared with non-reactivation. Therefore, HBV-related HCC patients should undergo antiviral therapy and HBV-DNA monitoring before and during the combination treatment.</p
DataSheet_2_Risk of hepatitis B virus reactivation and its effect on survival in advanced hepatocellular carcinoma patients treated with hepatic arterial infusion chemotherapy and lenvatinib plus programmed death receptor-1 inhibitors.docx
BackgroundHepatitis B virus (HBV) reactivation is a common complication in hepatocellular carcinoma (HCC) patients treated with chemotherapy or immunotherapy. This study aimed to evaluate the risk of HBV reactivation and its effect on survival in HCC patients treated with HAIC and lenvatinib plus PD1s.MethodsWe retrospectively collected the data of 213 HBV-related HCC patients who underwent HAIC and lenvatinib plus PD1s treatment between June 2019 to June 2022 at Sun Yat-sen University, China. The primary outcome was the risk of HBV reactivation. The secondary outcomes were overall survival (OS), progressionāfree survival (PFS), and treatmentārelated adverse events.ResultsSixteen patients (7.5%) occurred HBV reactivation in our study. The incidence of HBV reactivation was 5% in patients with antiviral prophylaxis and 21.9% in patients without antiviral prophylaxis, respectively. The logistic regression model indicated that for HBV reactivation, lack of antiviral prophylaxis (P=0.003) and tumor diameter (P=0.036) were independent risk factors. The OS and PFS were significantly shorter in the HBV reactivation group than the non-reactivation group (P=0.0023 and P=0.00073, respectively). The number of AEs was more in HBV reactivation group than the non-reactivation group, especially hepatic AEs.ConclusionHBV reactivation may occur in HCC patients treated with HAIC and lenvatinib plus PD1s. Patients with HBV reactivation had shorter survival time compared with non-reactivation. Therefore, HBV-related HCC patients should undergo antiviral therapy and HBV-DNA monitoring before and during the combination treatment.</p
DataSheet_1_Risk of hepatitis B virus reactivation and its effect on survival in advanced hepatocellular carcinoma patients treated with hepatic arterial infusion chemotherapy and lenvatinib plus programmed death receptor-1 inhibitors.docx
BackgroundHepatitis B virus (HBV) reactivation is a common complication in hepatocellular carcinoma (HCC) patients treated with chemotherapy or immunotherapy. This study aimed to evaluate the risk of HBV reactivation and its effect on survival in HCC patients treated with HAIC and lenvatinib plus PD1s.MethodsWe retrospectively collected the data of 213 HBV-related HCC patients who underwent HAIC and lenvatinib plus PD1s treatment between June 2019 to June 2022 at Sun Yat-sen University, China. The primary outcome was the risk of HBV reactivation. The secondary outcomes were overall survival (OS), progressionāfree survival (PFS), and treatmentārelated adverse events.ResultsSixteen patients (7.5%) occurred HBV reactivation in our study. The incidence of HBV reactivation was 5% in patients with antiviral prophylaxis and 21.9% in patients without antiviral prophylaxis, respectively. The logistic regression model indicated that for HBV reactivation, lack of antiviral prophylaxis (P=0.003) and tumor diameter (P=0.036) were independent risk factors. The OS and PFS were significantly shorter in the HBV reactivation group than the non-reactivation group (P=0.0023 and P=0.00073, respectively). The number of AEs was more in HBV reactivation group than the non-reactivation group, especially hepatic AEs.ConclusionHBV reactivation may occur in HCC patients treated with HAIC and lenvatinib plus PD1s. Patients with HBV reactivation had shorter survival time compared with non-reactivation. Therefore, HBV-related HCC patients should undergo antiviral therapy and HBV-DNA monitoring before and during the combination treatment.</p
DataSheet_3_Risk of hepatitis B virus reactivation and its effect on survival in advanced hepatocellular carcinoma patients treated with hepatic arterial infusion chemotherapy and lenvatinib plus programmed death receptor-1 inhibitors.docx
BackgroundHepatitis B virus (HBV) reactivation is a common complication in hepatocellular carcinoma (HCC) patients treated with chemotherapy or immunotherapy. This study aimed to evaluate the risk of HBV reactivation and its effect on survival in HCC patients treated with HAIC and lenvatinib plus PD1s.MethodsWe retrospectively collected the data of 213 HBV-related HCC patients who underwent HAIC and lenvatinib plus PD1s treatment between June 2019 to June 2022 at Sun Yat-sen University, China. The primary outcome was the risk of HBV reactivation. The secondary outcomes were overall survival (OS), progressionāfree survival (PFS), and treatmentārelated adverse events.ResultsSixteen patients (7.5%) occurred HBV reactivation in our study. The incidence of HBV reactivation was 5% in patients with antiviral prophylaxis and 21.9% in patients without antiviral prophylaxis, respectively. The logistic regression model indicated that for HBV reactivation, lack of antiviral prophylaxis (P=0.003) and tumor diameter (P=0.036) were independent risk factors. The OS and PFS were significantly shorter in the HBV reactivation group than the non-reactivation group (P=0.0023 and P=0.00073, respectively). The number of AEs was more in HBV reactivation group than the non-reactivation group, especially hepatic AEs.ConclusionHBV reactivation may occur in HCC patients treated with HAIC and lenvatinib plus PD1s. Patients with HBV reactivation had shorter survival time compared with non-reactivation. Therefore, HBV-related HCC patients should undergo antiviral therapy and HBV-DNA monitoring before and during the combination treatment.</p