1.Primary hyperparathyroidism in childrens complicated with vitamin D deficiency: an evidence-based case report
Tao YUAN ; Lian DUAN ; Weigang ZHAO ; Xiaoping XING ; Xunwu MENG
Chinese Journal of Clinical Nutrition 2015;23(1):52-55
Primary hyperparathyroidism (PHPT) in children is a rare condition,co-existing with vitamin D deficiency can lead to more diagnostic uncertainty.Here we report a case of a boy with PHPT complicated with vitamin D deficient rickets.The diagnosis and treatment of this patient was analyzed against literature review to summarize evidence-based clinical features of PHPT in children.We found that compared with adult PHPT,PHPT in children is associated with severer symptoms,higher serum calcium level,lower parathyroid hormone,preponderance of single adenoma in pathology,and higher cure rate of surgery.Co-existence of osteomalacia may induce reduction of the serum calcium level to the normal range,but cause more severe bone lesions.
2.Antibiotic-resistant genes and multilocus sequencing typing of Pseudomonas aeruginosa
Meng YUAN ; Yueming YUAN ; Hongbin CHEN ; Jinyan LUO ; Muhua YU ; Yongxiang DUAN
Chinese Journal of Zoonoses 2015;(10):957-962
We investigated the antibiotic‐resistant genes and genetic diversity of Pseudomonas aeruginosa from patients in hospital ,the smear samples from hospital and clinic environment ,and from medical staff’ hands respectively in 2011‐2012 in Nanshan District of Shenzhen .Polymerase chain reaction were used to detect the 20 kinds of antibiotic‐resistant genes (TEM , VEB,CARB,OXA,SHV,PER,GES,GTX,SPM,GIM,IMP,VIM,DHA,oprD,Aac(6′)‐Ⅰ ,Aac(6′)‐Ⅱ ,Aac (3′)‐Ⅰ ,A ac(2″)‐Ⅰ ,qacE1‐sull and int‐Ⅰ) .Multilocus sequencing typing was used to analyze the clonal complexes .The 11 kinds resistant genes TEM ,SHV ,IMP ,DHA ,Aac(6′)‐Ⅰ ,Aac(6′)‐Ⅱ ,Aac(3′)‐Ⅰ ,Aac(2″)‐Ⅰ ,qacE1‐sull ,int‐Ⅰand oprD were detected ,for the positive rates respectively ,and which were 8 .1% ,6 .4% ,4 .8% ,9 .7% ,4 .8% ,14 .5% ,9 .7% , 56 .5% ,8 .1% ,and 8 .1% ;the loss rate of oprD gene was 61 .2% .The 19 antibiotic resistance gene profiles existed in 52 Pseudomonas aeruginosa strains .Multilocus sequencing typing found 39 sequence types and 5 clonal complexes in 62 Pseudo‐monas aeruginosa strains ,CC244 and ST856 were dominant .There were some differences of antibiotic resistance gene profiles between different samples ,the Pseudomonas aeruginosa strains from patients carried multiple resistant genes .In our research , the Pseudomonas aeruginosa had the genetic diversity and the dominant clonal complexes existed .
3.Abdominal ultrasonographic manifestations of Langerhans cells histiocytosis in children
Jie ZHANG ; Wenjuan CHEN ; Huixian MENG ; Yuan HU ; Xingxing DUAN
Chinese Journal of Medical Imaging Technology 2018;34(6):884-887
Objective To observe the abdominal ultrasonic manifestations of children with Langerhans cells histiocytosis (LCH).Methods Imaging features of histopathologically proved LCH in 28 children were retrospectively analyzed.Results Among 28 eases,multi system involvement was found in 25 cases,while only liver and bile duct involvement were detected in 3 cases.Different degrees of enlarged liver,inhomogeneous echo of liver parenchyma,scattered or diffuse hypoechoic regions were found in all 28 cases.Uneven thickening and echo enhancement of the bile duct wall,as well as local expansion or stricture of bile duct cavity were found in 13 cases.Splenomegaly was found in 17 cases,swelling of the pancreas was found in 5 cases,varying degrees of ascites were found in 13 cases,and hepatic hilar lymphadenectasis were found in 14 cases.Conclusion There are specific ultrasonographic manifestations of LCH in children,which may be helpful to improving diagnostic accuracy of LCH.
4.Preliminary exploration of reproductive health issues for adult dysaudia female
Yuli ZANG ; Xiaohong HOU ; Yulin WANG ; Jing LI ; Xingbo DUAN ; Chunlan TONG ; Nan ZHU ; Yiqiao SHEN ; Kuichang YUAN ; Xiaoqin MENG ; Qiang CHENG ; Fenglan LOU
Chinese Journal of Practical Nursing 2008;24(28):63-64
Objective This study aimed to explore issues about dysandia female during pregnancy,peripartum and contraception and to supply reference for their reproductive health improvement. Methods Purposive sampling strategy was used. With the aid of an interview guide, 12 dysaudia women who met inclu-sion and exclusion criteria were invited to be interviewed. Interviews were recorded, validated and then ana-lyzed. Results Four themes were generated, limited knowledge, passive information acquisition, total depen-dence on family and reluctant to talk about contraception. Total dependence on family was noticeable during pregnancy and peripartum. Though little was known about health protection related to pregnancy, peripartum and contraception, participants were passive at seeking for relevant information. Conclusions Deaf women may experience more threats to reproductive health in relation to pregnancy, peripartum and contraception that they require more guidance and assistance.
5.Value of brain magnetic resonance imaging and tumor markers in the diagnosis and treatment of intracranial germinoma in children.
Yuan TAO ; Duan LIAN ; Zhu HUI-JUAN ; Pan HUI ; Jin ZI-MENG
Acta Academiae Medicinae Sinicae 2011;33(2):111-115
OBJECTIVETo evaluate the role of brain magnetic resonance imaging (MRI) and tumor markers in the cerebral spinal fluid (CSF) and serum in the diagnosis and treatment of intracranial germinoma in children.
METHODSTotally 5 children (3 girls and 2 boys) who were treated in our hospital between January 2009 and December 2010 due to central diabetes insipidus. All patients received contrast-enhanced brain MRI at presentation and during each follow-up: meanwhile, their anterior pituitary hormones and tumor markers including human chorionic gonadotropin (hCG) and alpha fetoprotein (AFP) were also determined.
RESULTSThree patients presented without prior evaluation, and two patients were referred to our hospital due to exaggerated disease of unknown cause. Their ages at presentation ranged from 8 years to 12 years 1 month, and the duration of symptoms at presentation was between 1 month to 78 months. All of them had polyuria and polydipsia at presentation. Except one child, the other 4 patients had growth retardation and failure in initiation of puberty. Although the growth rate and puberty development were normal during the 2-year follow-up for the excepted child, all child experienced anterior pituitary hypofunction and an increased concentration of plasma prolactin after the lesion became enlarged. Three patients had cerebral hernia, which presented in 18, 24, and 78 months, respectively. In three patients, brain MRI at presentation showed isolated pituitary stalk thickening, which further developed into massive tumor in the hypothalamus pituitary region 18-22 months later; in the remaining two patients, large brain tumor was found via MRI at their first presentations. In all five patients, the posterior pituitary gland (bright spot) disappeared on T1-weighted MRI images. CSF hCG elevated in all five patients, and serum hCG increased in four patients; the level of hCG varied with the mass size of tumor. Serum and CSF AFP increased in only one patient.
CONCLUSIONSPatients with idiopathic central diabetes insipidus must be closely followed to identify the etiology, especially when anterior pituitary hormone deficiencies are detected. For patients with normal brain MRI results or simply isolated pituitary stalk thickening at presentation, the changes of serial contrast-enhanced brain MRI should be observed during follow-up to ensure the early detection of an evolving occult hypothalamic-stalk lesion. Determination of CSF hCG at the first presentation may be useful, because an increased CSF level of hCG precedes MRI abnormalities.
Biomarkers, Tumor ; analysis ; blood ; cerebrospinal fluid ; Brain Neoplasms ; blood ; cerebrospinal fluid ; diagnosis ; Child ; Female ; Germinoma ; blood ; cerebrospinal fluid ; diagnosis ; Humans ; Magnetic Resonance Imaging ; Male ; Retrospective Studies
6.Advances on biological activities of coumarins.
Shao-Yul ZHANG ; Lin MENG ; Wen-Yuan GAO ; Nai-Ning SONG ; Wei JIA ; Hong-Quan DUAN
China Journal of Chinese Materia Medica 2005;30(6):410-414
This paper reviewed the advances on effective constituents and biological activities of coumarins in recent ten years. Coumarins are a group of important natural compounds, and have been found to have multi-biological activities such as anti-HIV, anti-tumor, anti-hypertension, anti-arrhythmia, anti-osteoporosis, assuaging pain, preventing asthma and antisepsis. Therefore, further investigation should emphasize on improving techniques for extraction and separation, searching the effective precursory compound, and synthesizing and screening out courmarin derivatives with high activity and low toxicity.
Animals
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Anti-Arrhythmia Agents
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pharmacology
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Anti-HIV Agents
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pharmacology
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Antihypertensive Agents
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pharmacology
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Antineoplastic Agents, Phytogenic
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pharmacology
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Coumarins
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isolation & purification
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pharmacology
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Humans
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Plants, Medicinal
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chemistry
7.Detection of SALL4 mRNA expression in leukemia by real-time fluorescent quantitative PCR.
Meng-Xi DUAN ; Cong-Xi BI ; Hui CHEN ; Nan WANG ; Shi-Jun LI ; Xiao-Guang XIAO ; Xiao-Lu MA ; Hong YUAN
Journal of Experimental Hematology 2013;21(5):1153-1156
This study was purposed to establish a real-time fluorescent quantitative PCR (FQ-PCR) for quantifying SALL4 mRNA and to investigate its expression in different types of leukemia patients. SALL4 mRNA expression were measured in 60 leukemia patients of different periods and 10 normal controls sequentially by FQ-PCR. The results showed that the expression of SALL4 mRNA in de novo leukemia patients and relapsed patients was higher than that in controls (P < 0.05), which was significantly decreased at complete remission (CR). In relapsed patients, the expression of SALL4 mRNA increased slightly higher than that in de novo leukemia group, but the difference was not statistically significant (P > 0.05). However, the expression of SALL4 mRNA was low in CLL, T-ALL and AML-M3. The expression pattern of BMI-1 was same as SALL4, and the expression of BMI-1 positively correlated with that of SALL4 in leukemia (r = 0.825, P < 0.01). It is concluded that the detection of SALL4 gene expression in acute and chronic leukemia by real-time gTR-PCR displays high sensitivity and specificity. SALL4 gene may be one of indicators for monitoring the therapeutic outcome of partial leukemia and minimal residual disease.
Adolescent
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Adult
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Aged
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Aged, 80 and over
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Female
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Humans
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Leukemia
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genetics
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Male
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Middle Aged
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Neoplasm, Residual
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diagnosis
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RNA, Messenger
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genetics
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Real-Time Polymerase Chain Reaction
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Transcription Factors
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genetics
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Young Adult
8.Exploring the Key Genes and Pathways of Osteoarthritis in Knee Cartilage in a Rat Model Using Gene Expression Profiling.
Yi Ming REN ; Xin ZHAO ; Tao YANG ; Yuan Hui DUAN ; Yun Bo SUN ; Wen Jun ZHAO ; Meng Qiang TIAN
Yonsei Medical Journal 2018;59(6):760-768
PURPOSE: To compare differentially expressed genes (DEGs) mediating osteoarthritis (OA) in knee cartilage and in normal knee cartilage in a rat model of OA and to identify their impact on molecular pathways associated with OA. MATERIALS AND METHODS: A gene expression profile was downloaded from the Gene Expression Omnibus database. Analysis of DEGs was carried out using GEO2R. Enrichment analyses were performed on the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes pathway using the Search Tool for the Retrieval of Interacting Genes database (http://www.string-db.org/). Subsequently, the regulatory interaction network of OA-associated genes was visualized using Cytoscape software (version 3.4.0; www.cytoscape.org). RESULTS: In the gene expression profile GSE103416, a total of 99 DEGs were identified. Among them, 76 DEGs (76.77%) were overexpressed, and the remaining 23 DEGs (23.23%) were underexpressed. GO and pathway enrichment analyses of target genes were performed. Using gene-gene interaction network analysis, relevant core genes, including MET, UBB, GNAI3, and GNA13, were shown to hold a potential relationship with the development of OA in cartilage. Using quantitative real-time PCR, the Gna13/cGMP-PKG signaling pathway was identified as a potential research target for therapy and for further understanding the development of OA. CONCLUSION: The results of the present study provide a comprehensive understanding of the roles of DEGs in knee cartilage in relation to the development of OA.
Animals
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Cartilage*
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Gene Expression Profiling*
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Gene Expression*
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Gene Ontology
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Genes, vif
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Genome
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Knee*
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Models, Animal*
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Negotiating
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Osteoarthritis*
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Rats*
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Real-Time Polymerase Chain Reaction
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Transcriptome
9.The role of FGF21 in inhibition of heart failure with empagliflozin and related mechanisms
Meng-xue ZHANG ; Yuan-yu WANG ; Ya-jun DUAN ; Shuang ZHANG
Acta Pharmaceutica Sinica 2022;57(6):1664-1672
The aim of this study is to investigate the role of fibroblast growth factor 21 (FGF21) in empagliflozin (EMP) in treatment of heart failure and the related mechanisms. FGF21 knockout (FGF21 KO) and littermate wild-type (WT) mice induced by doxorubicin (Dox) were used to establish heart failure mouse model
10.Novel assays for quality evaluation of XueBiJing:Quality variability of a Chinese herbal injection for sepsis management
Yu XUAN ; Niu WEI ; Wang YA-YA ; E.Olaleye OLAJIDE ; Wang JIA-NAN ; Duan MENG-YUAN ; Yang JUN-LING ; He RONG-RONG ; Chu ZI-XUAN ; Dong KAI ; Zhang GUI-PING ; Liu CHANG-XIAO ; Cheng CHEN ; Li CHUAN
Journal of Pharmaceutical Analysis 2022;12(4):664-682
XueBiJing is an intravenous five-herb injection used to treat sepsis in China.The study aimed to develop a liquid chromatography-tandem mass spectrometry(LC-MS/MS)-or liquid chromatography-ultraviolet(LC-UV)-based assay for quality evaluation of XueBiJing.Assay development involved identifying marker constituents to make the assay therapeutically relevant and building a reliable one-point cali-brator for monitoring the various analytes in parallel.Nine marker constituents from the five herbs were selected based on XueBiJing's chemical composition,pharmacokinetics,and pharmacodynamics.A selectivity test(for"similarity of response")was developed to identify and minimize interference by non-target constituents.Then,an intercept test was developed to fulfill"linearity through zero"for each analyte(absolute ratio of intercept to C response,<2%).Using the newly developed assays,we analyzed samples from 33 batches of XueBiJing,manufactured over three years,and found small batch-to-batch variability in contents of the marker constituents(4.1%-14.8%),except for senkyunolide I(26.5%).