皂术茵陈方治疗非酒精性脂肪性肝炎的临床观察及其对肠道菌群的影响

目的评价皂术茵陈方调节肠道菌群治疗非酒精性脂肪性肝炎(NASH)的临床疗效及其作用机制。方法选取福建中医药大学附属厦门市中医院肝病中心门诊就诊的NASH患者80例,采用随机数字表法分为治疗组(40例)和对照组(40例)。治疗组予中药皂术茵陈方治疗,对照组予以枯草杆菌二联活菌肠溶胶囊治疗,两组疗程均为12周。评价治疗前后两组患者的症状、体征积分以及血清ALT、AST活性;检测两组患者血清内毒素水平以及肠道菌群变化。结果治疗12周后,治疗组的临床总有效率达87.5%(35/40),较之对照组的65%(26/40)有统计学意义(χ~2=7.966,P<0.05);两组患者ALT、AST活性以及血清内毒素水平较治疗前均有明显下降(P<0.05),且以治疗组的ALT、AST活性下降值大于对照组(t=2.254,t=2.325,P<0.05);两组患者肠道菌群中的双歧杆菌、乳酸杆菌、拟杆菌数量较治疗前显著升高,而肠球菌、肠杆菌显著降低(P<0.05)。结论皂术茵陈方具有改善肝功能、治疗NASH的临床疗效,其作用机制与调节肠道菌群紊乱、恢复肠道微生态平衡、减轻肠源性内毒素血症相关。国家自然青年科学基金资助项目(No.81503529);;福建中医药大学临床专项校管课题基金(No.XB2016080

菖郁逍遥方治疗慢性乙型肝炎伴抑郁症的临床疗效及作用机制探讨

目的观察菖郁逍遥方治疗慢性乙型肝炎（chronic hepatitis B,CHB）伴抑郁症的临床疗效,并探讨其作用机制。方法 90例慢性CHB伴抑郁症患者,采用随机数字表法分为治疗组45例,对照组45例。在恩替卡韦治疗的基础上,对照组服用氟哌噻吨美利曲辛片;治疗组服用中药复方菖郁逍遥方,疗程12周。以汉密尔顿抑郁量表17项(Hamilton depression scale,HAMD17)评分观察治疗前、治疗中（治疗4周）、治疗后（治疗12周）两组患者的抑郁状态变化;以副反应量表（treatment emergent symptom scale,TESS）观察两组治疗后副反应;观察治疗前后血清ALT活性、乙型肝炎病毒DNA（hepatitis B virus DNA,HBV DNA）定量、5-羟色胺（5-hydroxytryptamine, 5-HT）、去甲肾腺上素（norepinephrine, NE）、脑源性神经营养因子（brain derived neurotrophic factor,BDNF）水平及内源性大麻素:N-花生四烯酸氨基乙醇（Arachidonoylethanolamine,AEA）、2-花生四烯酸甘油（2-arachidonoylglycerol,2-AG）及其受体（cannabinoid receptor,CBR）1、2指标变化。结果两组治疗中、治疗后的HAMD17评分较治疗前均明显降低（P0.05）。结论菖郁逍遥方具有显著改善CHB患者抑郁状态的临床疗效,作用机制与通过调控内源性大麻素水平来升高单胺类神经递质、BDNF相关。国家自然科学基金资助项目(No.81503529,No.81673660,No.81873242);;福建省科技计划引导性项目(No.2015D0007,No.2016D012);;厦门市科技计划项目(No.3502Z20174028);;厦门市重要重大疾病联合攻关项目(No.3502Z20179047);;福建省卫生计生医学创新科研人才培养项目(No.2018-CXB-28

慢性乙型肝炎患者肝组织HBcAg表达模式与中医证型的关系

目的:观察慢性乙型肝炎(CHB)患者肝组织乙型肝炎核心抗原(HBcAg)表达模式与中医证型及肝组织炎症、纤维化等指标的关系并进一步探讨相应的机制。方法:选择CHB患者556例,均进行中医辨证分型及肝组织活检,测定肝组织HBcAg表达模式、炎症、纤维化程度及ALT、AST、HBV DNA水平。结果:(1)556例患者按中医辨证标准分为6组:瘀血阻络证44例、肝肾阴虚证42例、肝郁气滞证48例、肝郁脾虚证282例、湿热蕴结证140例、脾肾阳虚证0例;按HBcAg表达模式分HBcAg阴性组42例、胞浆型HBcAg组186例、胞浆优势型HBcAg组290例、浆核各半型HBcAg组38例。(2)经Spearman秩相关分析,肝组织HBcAg表达模式与肝组织炎症活动度、纤维化程度均呈负相关;经Fisher确切概率检验,肝组织HBcAg表达模式与中医证型分布具有相关性。结论:肝组织HBcAg表达模式与中医证型、肝组织炎症、纤维化程度均有相关性;HBcAg阴性组、胞浆型HBcAg组及肝郁脾虚证、湿热蕴结证多处于慢性乙型肝炎活动期,正气未伤,免疫功能较强,为抗病毒治疗的较佳时机。国家自然科学基金项目(No.81503529,No.81673660);;福建省科技计划引导性项目(No.2015D007,No.2016D012);;厦门市科技惠民项目(No.3502Z20174028);;厦门市重要重大疾病联合攻关项目(No.3502Z20179047);;福建中医药大学基金项目(No.XB2016080)~

Determination of the number of ψ(3686) events taken at BESIII

The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies