1.Iodine nutrition and thyroid function in iodized salt supplied regions
Jianhui WANG ; Zhongyuan KAN ; Dan LI ; Yumei XIN ; Aijun MA
Chinese Journal of Endemiology 2014;33(3):290-293
Objective To study the effect of different iodine nutrition on thyroid function in adult and pregnant women.Methods A random sampling method was used to select healthy adult and pregnant woman from the communities of coastal city,coastal rural and inland rural areas in Liaoning Province.Drinking water,urine and salt samples were collected to measured urinary iodine (U I),salt iodine (SI) and water iodine content.Fasting venous blood was collected to measured thyroid stimulate hormone (TSH),freethyroxine (FT4),free triiodothyronine (FT3),thyroglobulin antibody (TgAb) and thyroid peroxidase antibody (TPOAb) with the method of immunoassay chemical luminescence.Results A total of 150 salt samples were collected,means of SI was (30.1 ± 6.0)mg/kg.A total of 72 pregnant woman and 271 adults were investigated in iodized salt supplied regions.median UI of pregnant woman and adults were 176.3,203.2 μg/L.Iodine nutrition of pregnant women and coastal region adults was in an adequate level.Means of SI of inland adults(244.4 μg/L) was higher than appropriate level but not reached the excessive level.FT4 of the adults (11.7 pmol/L) and pregnant women (10.7 pmol/L) in inland regions were slightly higher than that of coastal city,rural adults(11.2,8.6 pmol/L) and pregnant women (10.9,9.6 pmol/L).TSH,FT3 and FT4 were not statistically different between regions (all P < 0.05).But UI,FT4 and FT3 levels of pregnant women(176.3 μg/L,9.5 pmol/L,4.3 pmol/L) were significantly lower than that of the adults(203.2 pμg/L,11.3 pmol/L,4.7 pmol/L,all P < 0.05).Hypothyroxinemia(4.4%,10/173) was higher than that of the inland adults (2.0%,2/98,P < 0.05).And all hypothyroxinemia were found in women of childbearing age.Hypothyroxinemia prevalence of pregnant women(16.7%,12/72) was higher than that of adults(4.4%,12/271,P < 0.05),The prevalence of hypothyroidism,hyperthyroidism and subclinical hyperthyroidism between the 3 regions adults and pregnant women were not statistically different (all P > 0.05).Conclusions Under appropriate supply conditions of iodized salt,iodine nutrition and thyroid function are closely related.Pregnant women and women of childbearing age are at risk of iodine deficiency.The thyroid function of these people should be strengthen detect.
2.A comparative study of the kidney in two-kidney one-clip and spontaneous hypertension rats
Xin AN ; Jianzhong ZHANG ; Kan YANG ; Fengying GUO ; Li JING
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(04):-
Objective To compare the pathological changes of the kidney in two-kidney one-clip hypertension and spontaneous hypertension rats so as to provide some experimental basis for clinical prevention and treatment of primary and secondary hypertension. Methods Conventional histopathology and elastic staining methods were used to observe the morphological changes of kidney tissues and renal arterioles from two-kidney one-clip (2K1C) and spontaneously hypertensive rats (SHR) of different weeks of age. Results The blood pressure of 2K1C rats after 4 weeks of operation reached (187?24)mmHg,which was significantly higher than that of controls (P
3.The progress and advance on diffusion-weighted imaging in locoregional interventional treatment of hepatocellular carcinoma
Jing TANG ; Jinfeng LI ; Fengyong LIU ; Hongjun YUAN ; Xin LI ; Xiaomei TIAN ; Kan JI
Chinese Journal of Hepatobiliary Surgery 2021;27(3):235-240
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors in China. Unfortunately, most of HCC patients were diagnosed at the intermediate or advanced stage, losing the chance to receive the surgical intervention. Locoregional interventional treatment is one of the major therapeutic options for inoperable HCC treatment and prolongs the survival of the patients. Evaluation of the efficacy of the treatment is the important to determine the further therapy strategies. Currently, the evaluation of patients’ response is mainly based on CT and MR anatomic morphological images, but characteristics of tumor biology changes can be observed earlier than the morphological changes. In the recent years, with the development of diffusion weighted imaging (DWI), its value in clinical application has been continuously explored, and it has been increasingly used for quantitative evaluation the diffusion of water molecular and microcirculation perfusion of blood flow in tumor tissue, with some progress in evaluating the tumor response. This paper mainly reviewed the recent research findings of DWI on locoregional interventional treatment for HCC, thereby providing guidance on clinical practice.
4.Prokaryotic expression and identification of human astrovirus nonstructural proteins, nsP1a and nsP1a/4.
Wenhui LIU ; Lili KAN ; Yongsheng CUI ; Liqian TAN ; Xuexue LIANG ; Xin LI ; Wei ZHAO
Chinese Journal of Virology 2015;31(1):46-50
Human astrovirus (HastV) is recognized as one of the leading causes of acute viral diarrhea in infants. The HastV non-structural protein, nsPla, and C-terminal protein, nsPla/4, contain various conserved functional domains,and may play an important role in virus replication, transcription and the virus-host interactions of HastV. This study used an E. coli system to investigate the expression of nsPla and nsPla/4 proteins. Firstly,the nsPla and nsPla/4 genes of HAstV-1 were cloned into the prokaryotic expression vector,PGEX-4T-1, to build the PGEX-4T-1a and PGEX-4T-la/4 fusion protein plasmids. Then, the recombinant plasmids were transformed into Escherichia coli BL21 (DE3) and induced with isopropyl-β-D-thiogalactopyranoside (IPTG). The optimal expression conditions of the two fusion proteins were identified and then analyzed by polyacrylamide gel electrophoresis (SDS-PAGE) and western blotting, respectively. The results showed that the pGEX-4T-la fusion protein was maximally expressed at 30 °C after 12 hours of induction with 1.0 mM IPTG. The pGEX-4T-la/4 fusion protein was maximally expressed at 20 °C after 8 hours of induction with 0.5 mM IPTG. Western blot analysis showed that the two fusion proteins specificity reacted with the anti-nsPla and anti-GST monoclonal antibodies, respectively. This study successfully obtained the HAstV non-structural protein, nsP1a, and its C-terminal protein nsP1a/4 protein using an E. coli system. This novel study lays the foundation for future research into the pathogenic mechanisms of human astrovirus and the functions of its non-structural protein.
Cloning, Molecular
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Escherichia coli
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genetics
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metabolism
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Gene Expression
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Humans
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Mamastrovirus
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genetics
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metabolism
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Viral Nonstructural Proteins
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genetics
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metabolism
5.Thyroid-like low-grade nasopharyngeal papillary adenocarcinoma: report of a case.
Jin-fan LI ; Qin YE ; Bo HONG ; Xin GAO ; Kan-lun XU
Chinese Journal of Pathology 2011;40(9):638-639
Adenocarcinoma, Papillary
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metabolism
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pathology
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secondary
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surgery
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Adult
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Diagnosis, Differential
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Female
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Follow-Up Studies
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Humans
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Keratin-7
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metabolism
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Keratins
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metabolism
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Lung Neoplasms
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metabolism
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pathology
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secondary
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Nasopharyngeal Neoplasms
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metabolism
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pathology
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surgery
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Nuclear Proteins
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metabolism
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Thyroid Neoplasms
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metabolism
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pathology
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secondary
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Thyroid Nuclear Factor 1
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Transcription Factors
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metabolism
6.Accolade Ⅱ short stem for Crowe type Ⅰ developmental dysplasia of the hip in adults
Xinchuang NING ; Ming NI ; Lizhong FAN ; Jiying CHEN ; Guiyue CHEN ; Jiabin GUO ; Xin LI ; Kan LIU
Chinese Journal of Tissue Engineering Research 2017;21(23):3634-3639
BACKGROUND:Compared with the cone stem,short stem holds good matching with femoral canal,and remarkably reduces the risk of prosthesis loosening.OBJECTIVE:To further investigate the clinical efficacy of Accolade Ⅱ stem for Crowe type Ⅰ developmental dysplasia of the hip.METHODS:Clinical data of 16 patients with Crowe type Ⅰ developmental dysplasia of the hip undergoing total hip arthroplasty using Accolade Ⅱ stem were collected,the length of both lower limbs before and after surgery was compared,and the Visual Analogue Scale,functional recovery of the hip and general conditions were observed at 12 weeks postoperatively.RESULTS AND CONCLUSION:(1) The change in length of both lower limbs before and after surgery had significant difference (P < 0.05),and 10 patients (62%) with the same length of both lower limbs before surgery,and 15 cases (94%) after surgery.(2) The postoperative acetablar abducent angle was 41°-54° (average 46.9°).(3) The Visual Analogue Scale and Harris hip scores after surgery were significantly improved compared with baseline (P < 0.05).(4) The intraoperative blood loss was 147 mL on average,the mean operation time was 72 minutes,and the hospitalization time was 7.2 days.(5) All patients recovered well and no complications occurred at 3 months postoperatively.(6) To conclude,Accolade Ⅱ stem is safe and reliable for Crowe type Ⅰ developmental dysplasia of the hip,and exhibits good functional recovery of the hip.
7.Isolation of a Bacterium with High Product of Alkaline Mn-superoxide Dismutase,Geneclone and Sequence Analysis
Xin MENG ; Guo-Shi KAN ; Jian-Li LIU ; Xiao-Dan WANG ; Hong-Man CHEN ;
China Biotechnology 2006;0(05):-
A high-product superoxide dismutase(SOD)bacterial strain was first obtained from the soil around the warm spring of Changbai Mountain,which is alkaline-resistant.The nature analysis by the inhibition of H2O2 and chloroform-ethanol indicated that the SOD was Mn-SOD.It belongs to bacillus genus by the modal character,physiological and biochemical character.The phylogenetic analyses based on 16SrDNA sequence indicated that the strain 110-2 was closed to Bacillus sp.MO6 with 100% identity and 99% with Bacillus licheniformis.According to the sodA sequence of Bacillus licheniformis and conservative regions of many kinds of bacillus,which were published in GenBank,two pairs of primers were designed and the complete sequence of Mn-SOD(600bp)and the core fragment(430bp)were amplified by PCR techniques.The recombinant plasmid pMD18-SOD was built successfully.
8.Anatomical study of the third palmar interosseous muscle and its dominate nerve
Shi-Lian KAN ; Yan-Xin GAO ; Ke-Tong GONG ; Yi-Jun LU ; Qi-Li FEI ;
Chinese Journal of Microsurgery 2006;0(05):-
Objective To explore the anatomical characteristic of the third palmar interosseous mus- cle as well its dominate nerve,and to investigate the anatomical basis of difficult recovery of digitus minimus adduction.Methods Twenty aduh fresh hands without deformity and trauma were obtained.Dissect and observe the third palmar interosseous muscle and its dominate nerve and adjacent structure under surgical mi- croseope,measure the size of the third pahnar interosseous muscle and its dominate nerve,the data were pro- cessed by stastistics method.Results Among palmar interosseous muscles and its dominate nerves,the third palmar interosseous muscle and its dominate nerve is the smallest.There are conspicuous tendon bundle on the surface of the third palmar interosseous muscle partly,which have a potential compression on the third palmar interosseous muscle dominting nerve.Conclusion The third palmar interosseous muscle is the smal- lest among palmar interusseous muscles and it is the only digitus minimus adduction muscle.The sominating nerve of the third palmar interosseous muscle is small anti the tendon bundle of the third palmar interosseous muscle have a potential compression.All these can cast light on diffcult recovery of digitus minimus adduction.
9.Effect of Shengji Huayu Recipe on the expression of MMP-3 and TIMP-1 in skin ulcer tissue of diabetic rats.
Yi-Fei WANG ; Xin LI ; Rong XU ; Wen-Cheng JIANG ; Fu-Lun LI ; Kan ZE ; Bin LI
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(2):218-223
OBJECTIVETo study the effect of Shengji Huayu Recipe (SHR)on the expression of MMP-3 and TIMP-1 in the skin ulcer tissue of diabetic rats.
METHODSThe skin ulcer model was established in diabetic mice. Different compatibility proportions of SHR [the ratio of Shengji Recipe (SJR) to Huayu Recipe (HYR) = 2:1, 1:1, and 1:2, respectively] were used to intervene. The expression of MMP-3 protein in the skin ulcer of diabetic rats was detected by Western blot method,and TIMP-1 protein was detected by immunohistochemical assay.
RESULTSAt each time point, there was no statistical difference in the blood glucose level among groups (P > 0.05). But all of them increased significantly,when compared with those of the normal wound group (P < 0.01). As for the difference between after would area treatment and before would area treatment, better effect was obtained in the SHR No. 3 group and the normal ulcer group than in the diabetic ulcer model group (P < 0.05). Results of Western blot showed that the MMP-3 protein expression was higher in the SHR No. 2 group than in the SHR No.3 group (P < 0.05). Immunohistochemical results showed that TIMP-1 protein expression was lower in the SHR No. 2 group than in the SHR No. 3 group and the diabetic ulcer model group (P < 0.05). TIMP-1 protein expression was higherin the SHR No. 3 group than in the SHR No. 2 group (P < 0.01).
CONCLUSIONUsing SHR No.3 was conducive to the promotion of wound healing in early wound repair stage, and using SHR No. 2 might be conducive to inhibiting the formation of pathological scar.
Animals ; Diabetes Mellitus, Experimental ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Male ; Matrix Metalloproteinase 3 ; metabolism ; Phytotherapy ; Rats ; Rats, Sprague-Dawley ; Skin ; drug effects ; pathology ; Skin Ulcer ; drug therapy ; metabolism ; Tissue Inhibitor of Metalloproteinase-1 ; metabolism
10.Antitumor components screening of Stellera chamaejasme L. under the case of discrete distribution of active data.
Qian-Xu YANG ; Meng-Chun CHENG ; Li WANG ; Xiao-Xi KAN ; Xiao-Xin ZHU ; Hong-Bin XIAO
Acta Pharmaceutica Sinica 2014;49(6):927-931
This is to report the screening, extracting and validating antitumor components and compounds from Stellera chamaejasme L. under the case of discrete distribution of active data. In this work, different components from Stellera chamaejasme L. were collected by HPD macroporous resin and polyamide resin column, and their antitumor activity on A549 were tested by MTT assay. Activity results indicate that activity of components at 30-39 min is more potent than that of Stellera chamaejasme L. extract, and the activity of components at 33.97 min is equivalent to positive drug, cis-platinum at 100 microg x mL(-1), but with totally different mode of action. Under the case of discrete activity, the weight analysis is capable of screening active components and compounds from natural products.
Antineoplastic Agents, Phytogenic
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pharmacology
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Cell Line, Tumor
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Drug Screening Assays, Antitumor
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Humans
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Thymelaeaceae
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chemistry