3.Disseminated Gastrointestinal Mucormycosis in Immunocompromised Disease.
Tae Sun HA ; Chi Min PARK ; Jeong Hoon YANG ; Yang Hyun CHO ; Chi Ryang CHUNG ; Kyeongman JEON ; Gee Young SUH
Korean Journal of Critical Care Medicine 2015;30(4):323-328
Mucormycosis is an uncommon opportunistic fungal infection mostly affecting immunocompromised patients and gastrointestinal mucormycosis is a rare and life-threatening. We describe a 31-year-old man with a history of idiopathic cyclic neutropenia who developed perforations of the stomach and intestine and intra-abdominal bleeding due to disseminated gastrointestinal mucormycosis after the initial operation.
Adult
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Gastrointestinal Tract
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Hemorrhage
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Humans
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Immunocompromised Host
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Intestines
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Mucormycosis*
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Neutropenia
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Stomach
4."Study on the Evaluation Index System for ""National Major New Drug Development Program"
Yang LI ; Ranran DU ; Dongping GAO ; Yuan YANG ; Xiaobei SUN ; Hui CHI
Chinese Journal of Medical Science Research Management 2014;27(5):515-519
Objective Establish an objective and fair evaluation index system for the implementation effectiveness of the National Major New Drug Development Program of China.Methods Based on literature review and Delphi method,the framework of the evaluation index system was built and analytic hierarchy process was applied to determine the priority of each indicator of the system.The objectiveness and validness of the results were assured by determining expert activeness coefficient,authority coefficient,indicator rationality,and by applying consistency check.Results A targeted and systematic evaluation index system was constructed for the National Major New Drug Development Program,and through expert consultation and analytic hierarchy process,the factor of product result was considered of the highest weight of 39.03%,followed by technical result,theoretical result and organization and management result.The evaluation index system suggested that product result and technical result are two relatively more significant factors to be considered during evaluation.Conclu sion After consultation on expert opinions,the evaluation index system for the National Major New Drug Development Program was constructed with each factor been assigned with a scientific and rational weight,and this will provide a guideline for the decision making of program administrators and evaluation practice.
5.Effects of metallothionein on isolated rat heart.
Zhongdong, SUN ; Jiahong, XIA ; Nianguo, DONG ; Xinling, DU ; Yifan, CHI ; Tienan, YANG ; Chenyuan, YANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(4):448-50
To investigate the effects of metallothionein (MT) on isolated rat heart, 16 Wistar rats were randomly divided into 2 groups. In control group (group C), distilled water was injected intraperitoneally and 24 h later isolated hearts were perfused with Langendorff and stored at 4 degrees C for 3 h with histidine-tryptophan-ketoglutarate (HTK) solutions, and then isolated hearts were perfused for 2 h by Langendorff. In experimental group (group E), 3.6% ZnSO(4) was injected intraperitoneally, 24 h later isolated hearts were perfused by Langendorff and stored at 4 degrees C for 3 h with HTK solutions, and then the isolated hearts were perfused for 2 h with Langendorff. MT content, the recovery of hemodynamics, myocardial water content (MWC), lactate dehydrogenase (LDH) and creatine kinase (CK) leakage, adenosine triphosphate (ATP) and malondialdehyde (MDA) content, superoxide dismutase (SOD) activity, myocardial cell Ca(2+) content, Ca(2+)-ATPase activity of mitochondria ([Ca(2+)-ATPase](m)) and its Ca(2+) content ([Ca(2+)](m)), synthesizing ATP activity of mitochondria ([ATP](m)), and the ultrastructure of cells were examined. There were a significant increase in group E in hemodynamic recovery, ATP content, SOD activity, [Ca(2+)-ATPase](m) activity, [ATP](m) activity, and substantial reduction in MWC, LDH and CK leakage, MDA content, myocardial cell Ca(2+) content, [Ca(2+)](m) content, and the ultrastructural injury were obviously milder than that of group C. This study demonstrated that MT has protective effects on isolated rat heart.
Cardiotonic Agents/*pharmacology
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Creatine Kinase/*metabolism
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L-Lactate Dehydrogenase/metabolism
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Metallothionein/biosynthesis
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Metallothionein/*pharmacology
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Myocardium/*metabolism
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Myocardium/ultrastructure
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Random Allocation
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Rats, Wistar
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Superoxide Dismutase/metabolism
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Zinc Sulfate/pharmacology
6.Mechanism of radiosensitization effect of berberine on human nasopharyngeal carcinoma in hypoxia
Chi ZHANG ; Qu ZHANG ; Xi YANG ; Baixia YANG ; Qin QIN ; Hongcheng ZHU ; Jia LIU ; Xinchen SUN
Chinese Journal of Radiological Medicine and Protection 2014;(9):663-667
Objective To investigate the radiosensitiation effect of berberine on human nasopharyngeal carcinoma ( NPC) in hypoxia condition and explore the underlying mechanisms. Methods MTT assay, clonogenic assay and flow cytometry were performed to analyze cell proliferation, colony formation and apoptosis, respectively. Male nude mice inoculated subcutaneously with CNE-2 cells were used to examine the radiosensitization effect of berberine in vivo. The expressions of HIF-1α and VEGF were assessed by Western blot. Results Berberine efficiently inhibited the proliferation of CNE-2 cells in time-dependent and dose-dependent fashions with an IC50 of ( 14?9 ± 2?2 ) μmol/L. Clonogenic survival assay showed that berberine ( 5 μmol/L ) sensitized CNE-2 cells to ionizing radiation in hypoxia and its SERD0 was 1?27. Under hypoxic condition, berberine alone (5, 15 μmol/L) could induce apoptosis (t=5?01, 9?02,P<0?05) and it further promoted 8 Gy radiation-induced apoptosis (t =5?31, 9?91,P <0?05). Moreover, berberine significantly delayed the tumor growth in the combination group (berberine +irradiation) compared with the mice received irradiation alone or PBS (t =2?96, 14?52, P <0?05). Immunobloting assay showed that berberine inhibited the upregulation of HIF-1α and VEGF induced by hypoxia in CNE-2 cells. Conclusion Berberine confers radiosensitivity on hypoxic NPC in vitro and in vivo, which is probably associated with the downregulation of HIF-1α and VEGF expressions.
7.Allogeneic hematopoietic stem cell transplantation for intermediate cytogenetic risk acute myeloid leukemia
Wenhui ZHANG ; Kaikai CHI ; Yuqing CHEN ; Jing YANG ; Zunmin ZHU ; Kai SUN ; Yin ZHANG
Chinese Journal of Tissue Engineering Research 2017;21(9):1450-1455
BACKGROUND: Previous studies have shown that HLA-identical sibling allogeneic peripheral blood hematopoietic stemcelltransplantation (allo-HSCT) provides higher disease-free and overall survival rates for patients with intermediatecytogenetic risk acute myeloid leukemia (AML) in complete remission (CR). But prognosis factors have not been fullydefined.OBJECTIVE: To evaluate the outcome of patients with intermediate cytogenetic risk AML undergoing HLA-matchedallo-HSCT in CR, and to analyze the prognostic factors.METHODS: Fifty cases of intermediate cytogenetic risk AML in CR receiving HLA-matched allo-HSCT from January2009 to January 2015 were retrospectively analyzed. Primary outcome measures of the study included overall survival(OS), relapse rate and non-relapse mortality.RESULTS AND CONCLUSION: The 4-year OS of the study population reached to 64%, and the relapse rate and NRMreached to 18% and 20% respectively. Incidence of acute graft-versus-host disease was 26%. Different prognosis wasobserved between female donor/male recipient (FDMR) combination transplant and control (4-year OS: 50% vs. 71.9%,P=0.041), between patients requiring more than one course of induction chemotherapy to achieve CR and control(4-year OS: 40% vs. 70%, P=0.038), between older age (≥ 40 years) and control (4-year OS: 44.4% vs. 68.3%,P=0.056). The 4-year OS for matched sibling donor and matched unrelated donor was 63.2% and 66.7% (P=0.427),respectively. Further analysis revealed significantly high non-relapse mortality in FDMR combination transplant (P=0.024)and older age (≥ 40 years; P=0.043). Multivariate analysis revealed three negative prognostic factors: FDMRcombination (P=0.031, RR=1.38, 95% CI: 1.03-1.95), requiring more than one course of induction chemotherapy toachieve CR (P=0.016, RR=1.46, 95% CI: 1.10-1.98) and older age (≥ 40 years; P=0.024, RR=1.63, 95% CI: 1.32-2.12).To conclude, HLA-matched allo-HSCT is a choice for the intermediate cytogenetic risk AML case in CR. FDMRcombination, requiring more than one course of induction chemotherapy to achieve CR and older age (≥ 40 years) areconfirmed as risk factors of poor prognosis for HLA-matched allo-HSCT patients with intermediate cytogenetic risk AMLin CR. To these cases, the donor-recipient sex combination is more important than the donor type in donor selection.
8.Laparoscopic-assisted transanal Soave pull-through procedure for Hirschsprung's disease and allied disorders
Yi SU ; Suolin LI ; Chi SUN ; Zhenyu YANG ; Zengwen YU ; Chaosheng HE
Chinese Journal of General Surgery 2012;27(9):736-739
ObjectiveTo explore the feasibility and outcomes of natural orifice transanal laparoscopic Soave procedure for Hirschsprung's disease and allied disorders (HAD).MethodsFrom March 2010 to December 2011,31 cases (at the age from 3 mos to 6 yrs) with Hirschsprung's disease or allied disorders (5 cases)underwent laparoscopic-assisted Soave pull-through procedure at two tertiary hospitals.We modified this technique by mobilizing the left hemicolon or whole colon via rectal muscular sleeve approach under transanal or transumbilical laparoscopic vision,then endorectal pull-through to completearectosigmoidectomyorsubtotalcolectomy. ResultsAllprocedureswerecompleted successfully.A rectosigmoidectomy was performed in 16 cases with classic HD and subtotal colectomy in 15 cases with extended HD and HAD.The average operative time was ( 117 ± 13) min.The length of the resected segment was 35 -80 cm,and the estimated blood loss was 5 -20 ml. One infant developed postoperative intestinal obstruction that required open exploration.Follow-up of one to 20 mos found no stoma stenosis or constipation recurrence. Enterocolitis developed in 1patient.ConclusionsTransanal or transumbilical laparoscopic-assisted Soave pull-through surgery is safe,effective and with a benefit of much less invasion and almost invisible scars.
9.Experimental study on changes of CGRP-immunoreactive positive nerve fibers innervation in bone tissue of ratsand its significance
Zhenghao LU ; Ruisen ZHAN ; Shuangxi SUN ; Xiongwu LONG ; Chi YANG ; Shijie CHEN
Journal of Chinese Physician 2010;12(7):872-875
Objective To observe the changes of calcitonin gene-related peptide(CGRP) -immunoreactive positive nerve fibers innervation in bone tissue of femoral heads during the pathological process of early steroid-induced avascular necrosis of the femoral head (SANFH), and explore its significance.Methpathological group of SANFH was induced.Immunohistochemical technique was used and the changes of CGRP-immunoreactive positive nerve fibers innervation in weight bearing area of the femoral heads during the pathological process of early SANFH were observed.Result The number of CGRP-immunoreactive nerves increased first and then decreased ( Peaked at 6 weeks, 10.28 ± 0.66 ), but it was more than that ofnormal control group.There was significant difference between two groups ( P < 0.01 ).Conclusion There were changes in the distribution of CGRP-immunoreactive positive nerves fiber during the process of bone repair after SANFH.CGRP-immunoreactive positive nerves fiber might take part in the process of bone repair in SANFH.
10.Clinical analysis of 32 metastatic gastric cancer patients who un-derwent surgery after chemotherapy
Yongkun SUN ; Lin YANG ; Yihebali CHI ; Jing HUANG ; Aiping ZHOU ; Xinghua YUAN ; Jianqiang CAI ; Jinwan WANG
Chinese Journal of Clinical Oncology 2013;(16):988-991
Objective:To examine metastatic gastric cancer patients who underwent surgery after chemotherapy and to determine the factors affecting survival. Methods:Clinical data on metastatic gastric cancer patients who underwent surgery after chemotherapy were retrospectively analyzed. The overall survival data were evaluated through the Kaplan-Meier method, Log-rank test, and Cox haz-ards regression. Results:The median age was 46 (22~74), and the median overall survival rate (OS) was 19 months (4~59 months). Response to chemotherapy (23.0 m for PR and 14.5 m for SD, P=0.045) and resection of the primary tumor (23.0 and 5.5 m, respective-ly, P=0.017) affected OS. No single factor was related to OS according to Cox regression. Conclusion:Surgical removal of the primary tumor is recommended for metastatic gastric cancer patients with positive response to chemotherapy and with a primary tumor that can be resected.