1.Anti-contactin-associated protein-1 antibody associated chronic inflammatory demyelinating polyradiculoneuropathy: a case report
Xian SUN ; Xin XIE ; Fengyan JIN ; Ju ZHU ; Zhecheng ZHANG
Chinese Journal of Neurology 2021;54(5):487-490
Chronic inflammatory demyelinating polyneuropathy (CIDP) with positive anti-contactin-associated protein-1 (Caspr1) antibody is a rare autoimmune antibody mediated peripheral neuropathy. A 62-year-old male patient was reported in this article, whose clinical manifestations were subacute onset, abnormal distal limb motor sensation, and increased cerebrospinal fluid protein level. The patient had a good response to plasma exchange. Electromyography of lower limbs showed that motor involvement was dominant, motor conduction velocity slowed down, compound motor active potential (CMAP) and sensory nerve active potential amplitude decreased, and F wave was not elicited; electromyography of upper limbs without symptoms showed that CMAP amplitude of median nerve decreased, and conduction velocity was normal. There are few reports of anti-Caspr1 positive CIDP in the world. The article summarized the characteristics of the patient and reviewed the relevant literature, in order to improve clinicians′ understanding and diagnosis and treatment ability of the disease.
4.Study of change in activity of hepatic drug metabolism enzymes in rat model of chronic unpredictable mild stress.
Yu-xin ZANG ; Bing-ting SUN ; Wen-zhu ZHAO ; Na RONG ; Guo-liang DAI ; Wen-zheng JU ; Heng-shan TAN
Acta Pharmaceutica Sinica 2015;50(3):319-325
This study aimed to explore the impact of depression caused by chronic unpredictable mild stress (CUMS) on in vivo activity of six kinds of CYP450 isoforms in rats. According to 'Katz' method, the model of CUMS was established. Tolbutamide, chlorzoxazone, theophylline, midazolam, omeprazole and dextromethorphan were chosen as probe substrates of CYP2C6, CYP2E1, CYP1A2, CYP3A2, CYP2D1 and CYP2D2 of rats. Plasma concentration of six kinds of CYP450 in control group and model group were determined by LC-MS/MS and computed pharmacokinetic parameters. Consequently, metabolism of theophylline and chlorzoxazone accelerated significantly (P < 0.01), but tolbutamide, dextromethorphan, omeprazole and midazolam had no significant difference. The present study proved that depression caused by CUMS had strong induction to CYP1A2 and medium induction to CYP2E1.
Animals
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Chlorzoxazone
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metabolism
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Chromatography, Liquid
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Cytochrome P-450 Enzyme System
;
metabolism
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Depression
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Dextromethorphan
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metabolism
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Liver
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enzymology
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Midazolam
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metabolism
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Omeprazole
;
metabolism
;
Rats
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Stress, Physiological
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Tandem Mass Spectrometry
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Theophylline
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metabolism
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Tolbutamide
;
metabolism
5.Analysis of relationship between injury and disease by cardiac functional indicators in hypertension rat after trauma.
Rong-jun YU ; Zhen-yuan WANG ; Jun-bang FANG ; Yong-chen XU ; Xin-ju ZHU
Journal of Forensic Medicine 2006;22(1):21-23
OBJECTIVE:
To observe the changes of cardiac functional indicators in spontaneously hypertension rats (SHR) suffered by struck injuries of soft tissues, form which to discuss the significance in relationship between injury and disease.
METHODS:
SHRs were divided into four groups according to the degree, and whose thigh was struck with the homemade hit instrument. Then the blood pressure, heart rate as well as serum biochemical indicators (CK, CK-Mb, LDH, Cr, BUN, HBDH and AST) were examined. In addition, the morphological changes of heart, brain and kidney were also observed.
RESULTS:
The observe values of heart rate and blood pressure of SHRs seemed have relation to the degree of damage, but there were no statistically significance between different hit degree groups. In terms of serum biochemical indicators, all seven indicators of the hit group had significant difference with that of the control group, and the AST CK, CK-MB levels were difference between the group of different strike degree.
CONCLUSIONS
Struck injuries of soft tissues can result in forepart damage of cardiac muscle. The biochemical indicators reflect the degree of injury, and they could be used as a type of objective enzymology indicators for analysis of the relationship between injury and disease in forensic practice.
Animals
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Aspartate Aminotransferases/blood*
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Biomarkers/blood*
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Blood Pressure
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Creatine Kinase/blood*
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Female
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Heart/physiopathology*
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Heart Rate
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Hindlimb/injuries*
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Hypertension/physiopathology*
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Kidney/physiopathology*
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Male
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Myocardium/pathology*
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Random Allocation
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Rats
6.Comparison of short-term outcomes of hand-assisted laparoscopic, laparoscopic, and open surgery in the treatment of rectal cancer.
Haixing JU ; Xin HUANG ; Yuping ZHU ; Haiyang FENG ; Dechuan LI
Chinese Journal of Gastrointestinal Surgery 2014;17(6):574-577
OBJECTIVEThe aim of this study was to compare the short-term outcomes for hand-assisted, laparoscopic, and open resection for rectal cancer.
METHODSThree hundred ninety patients with rectal cancer who underwent curative resection between June 2009 and June 2012 were included. Patients were classified into a hand-assisted group (HALS, n=101), a laparoscopic surgery group (LS, n=157), and an open surgery group (OS, n=132). Patient and disease characteristics, operative parameters, postoperative morbidity, pathological results and length of recovery were compared among three groups.
RESULTSThe mean operating time was (173±39) min for the HALS group, (231±61) min for the LS group, and (173±39) min for the OS group (P<0.01). Conversion rates did not differ between HALS and LS groups (2.0% vs 3.2%, P=0.708). The overall complication rates were 11.9%, 11.5%, and 19.7% in the HALS, LS and OS groups respectively (P=0.100). The specimen quality with a specimen length, distal resection margin, harvested lymph nodes, and positive lymph nodes did not differ among the three groups. Patients in the HALS and LS groups recovered significantly faster than those from the OS group.
CONCLUSIONSThis comparative study shows that HALS and LS can reproduce the equivalent short-term results of standard OS. HALS retained the minimal invasive advantages of LS, and significantly shorten the operation time.
Aged ; Female ; Humans ; Laparoscopy ; methods ; Laparotomy ; Male ; Middle Aged ; Rectal Neoplasms ; surgery ; Retrospective Studies ; Treatment Outcome
7.Study on applying chromatographic fingerprints to establishing quality criterion of processed tuber of Pinellia pedatisecta.
Yan HE ; Qi-wei ZHANG ; Yong-xin ZHANG ; Jie SUN ; Zhu-ju WANG
China Journal of Chinese Materia Medica 2004;29(9):874-876
OBJECTIVETo explore the utility of principal component analysis (PCA) in conjunction with the window preprocessing scheme on chromatographic data for quality control.
METHODChromatographic fingerprints of processed tuber of Pinellia pedatisecta were determined by HPLC, and the Window Preprocessing and PCA were used for data processing.
RESULTThe quantitative differences among different growing areas and different process batches were found with this method.
CONCLUSIONThe method can be used in quality control for monitoring between-batch products of traditional Chinese pharmaceutical process.
China ; Chromatography, High Pressure Liquid ; methods ; Ecosystem ; Pinellia ; chemistry ; Plants, Medicinal ; chemistry ; Principal Component Analysis ; methods ; Quality Control
8.Preliminary structural and functional study on a novel gene HSPCSET.
Ju WEI ; Xiao-jian SUN ; Xin-yan WU ; Sai-juan CHEN ; Zhu CHEN ; Chun WANG ; Qiu-hua HUANG
Chinese Journal of Medical Genetics 2009;26(1):35-39
OBJECTIVETo characterize the structural and the functional feature of a novel gene HSPCSET isolated from human CD34+ hematopoietic stem/progenitor cells (HS/PCs).
METHODSBioinformatic technology was used to identify the structural features of the HSPCSET protein and perform the multiple sequence alignment. Yeast-two-hybrid system was used to identify the proteins interacting with the HSPCSET protein. After sequencing, we selected out the positive clones which had clear functions, and carried out beta-gal experiment and GST pull down assay to confirm the results. The cellular location of the HSPCSET was checked by immunofluorescence assay.
RESULTSThe HSPCSET protein belongs to a SET domain family, which is evolutionarily conserved across species. It implied that HSPCSET may have biologically important function. Using yeast-two-hybrid system, we showed that the protein sequence with SET domain might bind to 13 proteins, which involved in signaling transduction, transcriptional regulation, apoptosis, tumorigenesis, development, etc. And 4 proteins (GADD34, SIVA, DNAJ and PHF1) were confirmed by one-on-one back of the hybrid experiment, beta-gal test and GST pull down assay. When GADD34 and HSPCSET were co-transfected, they co-localized in the nucleus, suggesting a strong interaction.
CONCLUSIONThe novel gene HSPCSET is likely to have biologically important function. This study provides the basis for further studies of its function in hematopoiesis and tumorigenesis.
Amino Acid Sequence ; Animals ; Antigens, Differentiation ; metabolism ; Cell Cycle Proteins ; metabolism ; Computational Biology ; Conserved Sequence ; Hematopoietic Stem Cells ; metabolism ; Humans ; Molecular Sequence Data ; Protein Phosphatase 1 ; Protein Structure, Tertiary ; Proteins ; chemistry ; genetics ; metabolism ; Sequence Homology, Amino Acid ; Two-Hybrid System Techniques
9.Study on traditional Chinese pharmaceutical processing of radix Pinellia pedatisecta.
Yan HE ; Qi-wei ZHANG ; Yong-xin ZHANG ; Jie SUN ; Zhu-ju WANG
China Journal of Chinese Materia Medica 2004;29(10):963-966
OBJECTIVETo study the effects of concentration, volume and temperature of aluminium water on the change of chromatoghraphic data of processed Rhizoina Arisaematis.
METHODChromatographic fingerprints of processed Radix Pinellia pedatisecta were determined by HPLC, and multivariate analysis was made for data processing.
RESULT AND CONCLUSIONNo change on the whole chromatoghraphic data was observed at different levels of concentrition and volume of aluminium water, while there was a great change at different levels of temperature.
Alum Compounds ; Chromatography, High Pressure Liquid ; methods ; Hot Temperature ; Pinellia ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Technology, Pharmaceutical ; methods ; Temperature
10.Effects of dusts on workers' health in enzyme production plants.
Ju-yi ZHU ; Ling LEI ; Wen-yan HUANG ; Hai-quan LIAN ; Bo ZHANG ; Ying TANG ; You-xin LIANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2006;24(9):547-549
OBJECTIVETo assess the health effects of dusts in enzyme production plants.
METHODSThe concentration of enzyme-containing dusts, the enzyme and the wheat-containing dusts and their health effects on workers were investigated in three enzyme production plants. Air samples were collected by high volume sampler and personal sampler. Total dust was weighed and its content of enzyme was analyzed by enzyme activity method. Health effects were assessed by the questionnaire, the pulmonary function and the skin prick test.
RESULTSIt was found that the geometric mean of enzyme-containing dust was 8.91 mg/m(3), the industrial enzyme was 1.68 mg/m(3), and the wheat-containing dust was 6.93 mg/m(3). The enzyme-containing dust higher than 20 mg/m(3) caused eye symptoms. The wheat-containing dust at 6.93 mg/m(3) might result in skin and nose symptoms. The sensitization could be observed in enzyme and wheat exposed workers.
CONCLUSIONAdverse effects may arise for the health of the workers if the concentration of enzyme-containing dusts and the wheat-containing dusts is up to a certain limit and it is necessary to make the limit of these indexes.
Adolescent ; Adult ; Albumins ; adverse effects ; Dust ; analysis ; Enzymes ; analysis ; Female ; Health Surveys ; Humans ; Male ; Middle Aged ; Occupational Exposure ; Respiratory Function Tests ; Skin Tests ; Surveys and Questionnaires ; Triticum