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Pancreatic primary lymphoma: a case report and review of the literature

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Hepatobiliary & Pancreatic Diseases International 2005年第4期4卷 622-626页

作者： Yuan Ji Tian-Tao Kuang Yun-Shan Tan ying Chen hai-ying zeng Da-Yong Jin Department of Pathology Zhongshan Hospital Fudan University Shanghai 200032 China. yji@***

BACKGROUND: Primary pancreatic lymphoma is a rare but treatable malignancy ( less than 1% of pancreatic tumors) that may be clinically confused with pancreatic adenocarcinoma. METHODS: In a patient with upper abdominal pain, ultra-sonography and CT detected a mass in pancreatic head, which compressed the common bile duct. The patient received a Wliipple’s operation and intraoperative frozen sections of the mass showed an anaplastic carcinoma. Immu-nohistochemical staining was used to indicate the origin and prognosis of tumor. RESULTS: Grossly the tumor involved the pancreatic head, soft in consistence and invaded part of the gastric wall. His-tologically, the tumor was composed mainly of large and moderate neoplastic cells, which were diffusely positive for CD20 and Bcl-6 antigens, indicating the features of diffusely large B cell lymphoma. CONCLUSIONS : The proper diagnosis of the tumor should be made with CD20 and Bcl-6 immunohistochemical study. Radical surgery is indicated for resectable carcinoma but not for a chemosensitive lymphoma.

关键词： pancreas lymphoma CD20 Bcl-6

A series of 64 cases of pancreatic cystic neoplasia from an institutional study of China

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World Journal of Gastroenterology 2006年第45期12卷 7380-7387页

作者： Yuan Ji Wen-Hui Lou Da-Yong Jin Tian-Tao Kuang Meng-Su zeng Yun-Shan Tan hai-ying zeng Akesu Sujie Xiong-zeng Zhu Department of Pathology Zhongshan Hospital Fudan University Shanghai 200032 China Department of Surgery Zhongshan Hospital Fudan University Shanghai 200032 China Department of Radiology Zhongshan Hospital Fudan University Shanghai 200032 China Department of Pathology Cancer Hospital Fudan University Shanghai 200032 China

AIM: To recognize cystic neoplasia of the pancreas and thus to identify a panel of curable diseases. METHODS: Sixty-four cases of cystic neoplasia of the pancreas, including 28 cases of intraductal papillary mucinous neoplasia (IPMN), 12 cases of serous cystic neoplasia (SCN), 11 cases of mucinous cystic neoplasia (MCN), 11 cases of solid pseudo-papillary neoplasia (SPN), and 2 cases of solid tumor with cystic degeneration were examined immunohistochemically for their expression of MUC1, MUC2, MUC4, MUC5AC, and MUC6, as well as other related antigens. RESULTS: Adenoma type of IPMN and borderline lesions exhibited high expressions of MUC2, and MUC5AC. In contrast, IPMN with invasive carcinoma component showed MUC1 immunoreactivity. SCN was mainly positive for MUC1 and MUC6, while negative for MUC2, MUC4 and MUC5AC. Noninvasive MCN, regardless of its cellular atypia degree, was positive for MUC5AC and negative for MUC1. MUC1 expression was only observed in patients with an invasive component. No mucin expression was found in SPN. CONCLUSION: Mucin profile may, in conjunction with histologic study, provide important information on tumor types and patient treatment of cystic neoplasia of the pancreas.

关键词： Pancreas Cystic neoplasm Mucin Differential diagnosis Diagnosis

Mutations in surface and polymerase gene of chronic hepatitis B patients with coexisting HBsAg and anti-HBs

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World Journal of Gastroenterology 2006年第26期12卷 4219-4223页

作者： hai-ying Lu Zheng zeng Xiao-Yuan Xu Nai-Lin Zhang Min Yu Wei-Bo Gong Department of Infectious Diseases Peking University First Hospital Beijing 100034 China

AIM： To investigate the clinical significance and presence of mutations in the surface （S） and overlapping polymerase gene of hepatitis B patients with coexisting HBsAg and anti-HBs. METHODS： Twenty-three patients with chronic hepatitis B were studied. Of the 23 patients, i i were both positive for hepatitis B virus （HBV） surface antigen （HBsAg） and antibody to HBV surface antigen （anti-HBs）, 12 were negative for anti-HBs while positive for HBsAg. DNA was extracted from 200 μL serum of the patients. Nucleotide of the surface and overlapping polymerase gene from HBV-infected patients was amplified by PCR, and the PCR products were sequenced. RESULTS： Forty-one mutations were found within the surface gene protein of HBV in 15 patients （10 with coexisting HBsAg and anti-HBs）. Six （14.6%） out of 41 mutations were located at ＂α＂ determinant region in 5 patients （4 positive for HBsAg and anti-HBs）. Eleven mutations （26.8%） occurred in the downstream or upstream of ＂α＂ determinant region. Lamivudine （LMV）- selected mutations were found in three patients who developed anti-HBs, which occurred in amino acid positions （196, 198, 199） of the surface protein and in YMDD motif （M204I/V） of the polymerase protein simultaneously. Presence of these mutations did not relate to changes in ALT and HBV DNA ***： Besides mutations in the ＂α＂ determinant region, mutations at downstream or upstream of the ＂α＂ determinant region may contribute to the development of anti-HBs. These mutations do not block the replicating competency of HBV in the presence of high titer of anti-HBs.

关键词： Hepatitis B virus surface antigen Antibody to hepatitis B virus surface Mutation

Solitary fibrous tumor of the liver

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Hepatobiliary & Pancreatic Diseases International 2006年第1期5卷 151-153页

作者： Yuan Ji, Jia Fan, Yang Xu, Jian Zhou, hai-ying zeng and Yun-Shan Tan Department of Pathology and Liver Cancer Institute Zhongshan Hospital, Fudan University, Shanghai 200032, China Department of Pathology Zhongshan Hospital Fudan University Shanghai 200032 China. yji@***

BACKGROUND: Solitary fibrous tumor of the liver is a rare neoplasm. So far, 23 cases have been described in the English literature. We reported an additional case. METHODS: A 46-year-old woman presented with abdominal mass for 2 weeks. Both abdominal sonography and CT scan showed a solid mass occupying the right lobe of the liver. Right lobectomy was performed and the tumor was resected. RESULTS: Pathological examination showed spindle cell and fibroblast-like cells within the collagenous troma. On immunohistochemical staining, these spindle tumor cells showed diffusely CD34 positive reactivity. The post-operative course was uneventful. The patient recovered smoothly, and was alive half a year without evidence of disease recurrence. CONCLUSIONS: The proper diagnosis was depended on CD34 immunohistochemical study. The number of solitary fibrous tumor of the liver reported to date is too limited to confirm the definite prognosis of the tumor.

关键词： liver neoplasm solitary fibrous tumor CD34

Metastable seed-crystals: epitaxial growth of branched-array organic heterostructure nanowires

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Science China Chemistry 2025年

作者： Jin Feng Zhen-Yu Geng Ting-Yao Song ying-Xin Ma Chuan-zeng Wang Wei Zhang Hong-Tao Lin Jin Zhou Shu-Ping Zhuo Shu-hai Chen Xue-Dong Wang School of Chemistry and Chemical Engineering Shandong University of Technology Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesSoochow University College of Chemistry and Chemical Engineering Hunan Normal University

Tunable light–matter interactions are exhibited by organic low-dimensional crystals, making these crystals a promising platform for organic photonics. However, the precise synthesis of organic low-dimensional crystals remains challenging due to the stochastic nature of molecular nucleation processes. Herein, the directed nucleation process is driven by the introduction of metastable seed-crystals as the trunk, which ultimately leads to branched-array organic heterostructures. The successful formation of organic heterostructures with high-density branched arrays is attributed to the highest attachment energy (Eatt（023）=-104.25 kcal mol-1) of the exposed （023） crystal plane during the seed-crystal growth route. Significantly, these as-prepared heterostructures inherently have an ultralow lattice mismatch ratio η of 0.7%between trunk and branch, which contributes to the multi-channel photon transportation. Therefore, this work provides valuable insights into a versatile synthetic strategy for accessing low-dimensional heterostructures for integrated optoelectronics.

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BDNF/TrkB pathway mediates the antidepressant-like role of H2S in CUMS-exposed rats by inhibition of hippocampal ER stress

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BDNF/TrkB pathway mediates the antidepressant-like role of H...

Brain region-specific roles of brain-derived neurotrophic factor in social stress-induced depressive-like behavior

中国生理学会张锡钧基金会第十四届全国青年优秀生理学学术论文交流及评奖会议、中国生理学会第十二届全国青年生理学工作者学术会议

作者： Le Wei Li-Yuan kan hai-ying zeng Yi-Yun Tang Hong-Lin Huang Ming Xie Wei Zou Chun-Yan Wang Ping Zhang Xiao-Qing Tang Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study Institute of Pharmacy and PharmacologyUniversity of South China Institute of Neuroscience Medical CollegeUniversity of South China Department of Neurology the First Affiliated HospitalUniversity of South China Department of Neurology Nanhua Affiliated HospitalUniversity of South China Department of Pathophysiology Medical CollegeUniversity of South China

Accumulating evidences suggest that chronic unpredictable mild stress（CUMS）induced depressive-like behaviors and hippocampal endoplasmic reticulum（ER）*** previous work showed that Hydrogen sulfide（HS）significant... 详细信息

关键词： BDNF/TrkB pathway mediates the antidepressant-like role of H2S in CUMS-exposed rats by inhibition of hippocampal ER stress

来源： cnki会议评论

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Neural Regeneration Research 2025年第1期20卷 159-173页

作者： Man Han Deyang zeng Wei Tan Xingxing Chen Shuyuan Bai Qiong Wu Yushan Chen Zhen Wei Yufei Mei Yan zeng Brain Science and Advanced Technology Institute Wuhan University of Science and TechnologyWuhanHubei ProvinceChina Geriatric Hospital Affiliated to Wuhan University of Science and Technology WuhanHubei ProvinceChina School of Public Health Wuhan University of Science and TechnologyWuhanHubei ProvinceChina

Brain-derived neurotrophic factor is a key factor in stress adaptation and avoidance of a social stress behavioral *** studies have shown that brain-derived neurotrophic factor expression in stressed mice is brain region–specific,particularly involving the corticolimbic system,including the ventral tegmental area,nucleus accumbens,prefrontal cortex,amygdala,and *** how brain-derived neurotrophic factor participates in stress processing in different brain regions will deepen our understanding of social stress *** this review,we discuss the expression and regulation of brain-derived neurotrophic factor in stress-sensitive brain regions closely related to the pathophysiology of *** focused on associated molecular pathways and neural circuits,with special attention to the brain-derived neurotrophic factor–tropomyosin receptor kinase B signaling pathway and the ventral tegmental area–nucleus accumbens dopamine *** determined that stress-induced alterations in brain-derived neurotrophic factor levels are likely related to the nature,severity,and duration of stress,especially in the above-mentioned brain regions of the corticolimbic ***,BDNF might be a biological indicator regulating stress-related processes in various brain regions.

关键词： amygdala chronic mild stress chronic social defeat stress corticolimbic system depression hippocampus medial prefrontal cortex nucleus accumbens social stress models ventral tegmental area

Role of metabolic dysfunction and inflammation along the liver-brain axis in animal models with obesity-induced neurodegeneration

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Neural Regeneration Research 2025年第4期20卷 1069-1076页

作者： Evridiki Asimakidou Eka Norfaishanty Saipuljumri Chih Hung Lo Jialiu zeng Department of Clinical Neurosciences University of CambridgeCambridgeUK School of Applied Science Republic PolytechnicSingaporeSingapore Lee Kong Chian School of Medicine Nanyang Technological UniversitySingaporeSingapore

The interaction between metabolic dysfunction and inflammation is central to the development of neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s ***-related conditions like type 2 diabetes and non-alcoholic fatty liver disease exacerbate this *** lipid accumulation,particularly in the liver,initiates a cascade of inflammatory processes that extend to the brain,influencing critical metabolic regulatory *** and palmitate,key lipid components,along with lipid transporters lipocalin-2 and apolipoprotein E,contribute to neuroinflammation by disrupting blood–brain barrier integrity and promoting *** insulin resistance further exacerbates brain insulin resistance and *** interventions targeting peripheral lipid metabolism and insulin signaling pathways have shown promise in reducing neuroinflammation in animal ***,translating these findings to clinical practice requires further investigation into human *** conclusion,metabolic dysfunction,peripheral inflammation,and insulin resistance are integral to neuroinflammation and *** these complex mechanisms holds potential for identifying novel therapeutic targets and improving outcomes for neurodegenerative diseases.

关键词： Alzheimer’s disease inflammatory cytokines insulin resistance lipid

Multi-Stage Voltage Control Optimization Strategy for Distribution Networks Considering Active-Reactive Co-Regulation of Electric Vehicles

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Energy Engineering 2025年第1期122卷 221-242页

作者： Shukang Lyu Fei zeng Huachun Han HuiyuMiao Yi Pan Xiaodong Yuan Electric Power Research Institute State Grid Jiangsu Electric Power Co.Ltd.Nanjing211103China

The high proportion of uncertain distributed power sources and the access to large-scale random electric vehicle(EV)charging resources further aggravate the voltage fluctuation of the distribution network,and the existing research has not deeply explored the EV active-reactive synergistic regulating characteristics,and failed to realize themulti-timescale synergistic control with other regulatingmeans,For this reason,this paper proposes amultilevel linkage coordinated optimization strategy to reduce the voltage deviation of the distribution ***,a capacitor bank reactive power compensation voltage control model and a distributed photovoltaic(PV)activereactive power regulationmodel are ***,an external characteristicmodel of EVactive-reactive power regulation is developed considering the four-quadrant operational characteristics of the *** optimization model of the distribution network is then constructed considering the time-series coupling constraints of multiple types of voltage regulators.A multi-timescale control strategy is proposed by considering the impact of voltage regulators on active-reactive EV energy consumption and PV energy ***,a four-stage voltage control optimization strategy is proposed for various types of voltage regulators with multiple time ***-objective optimization is solved with the improvedDrosophila algorithmto realize the power fluctuation control of the distribution network and themulti-stage voltage control *** results validate that the proposed voltage control optimization strategy achieves the coordinated control of decentralized voltage control resources in the distribution *** effectively reduces the voltage deviation of the distribution network while ensuring the energy demand of EV users and enhancing the stability and economic efficiency of the distribution network.

关键词： Electric vehicle(EV) distribution network multi-stage optimization active-reactive power regulation voltage control