2. Application of fingerprint combined with QAMS in quality evaluation of Aurantii Immaturus Fructus
Chinese Traditional and Herbal Drugs 2020;51(9):2548-2556
Objective: This paper aims to provide the experimental foundation for quality control of Aurantii Immaturus Fructus from different habitats by analyzing the multi-component qualitatively and quantitatively. Methods: Fingerprint pattern and QAMS were combined in this experiment, and HPLC analysis was performed on a Waters X-Brige C18 (200 mm × 4.6 mm, 5 μm) column with mobile phase composed of acetonitrile (A) -0.1% methanoic acid solution at a flow rate of 1.0 mL/min in gradient elution mode. The column temperature was maintained at 30 ℃, the injection volume was 10 μL, and the detection wavelengths were set at 283 and 330 nm. Results: The HPLC-UV fingerprint of Aurantii Immaturus Fructus from different habitats was established with 21 common peaks, 9 of them were identified as narirutin, naringin, hesperidin, neohesperidin, naringenin, hesperetin, sinensetin, nobiletin and tangeretin, and the similarity of 23 batches of samples were greater than 0.9, CA and PCA show the classification is consistent with the habitats distribution of the medicine. Then, the QAMS result showed some differences with neohesperidin to be the internal standard. Conclusion: From the perspective of composition, there are some differences in the quality of Aurantii Immaturus Fructus from different habitats, and the method of QAMS is accurate, efficient and feasible, which has obvious advantages than standard curve method and external standard method. In a word, it can be applied to quality evaluation and provides the experimental foundation for quality control of Aurantii Immaturus Fructus from different habitats.
3.Follow-up study on pedicle fixation for treatment of thoracolumbar burst fractures in patients with osteoporosis
Zhikui YANG ; Jianan DAI ; Xi CAO ; Yonggang LI ; Peng LI ; Xin GAO ; Chong LIU ; Mei ZHENG
Journal of Regional Anatomy and Operative Surgery 2017;26(8):581-585
Objective To explore the effect of pedicle fixation for treatment of thoracolumbar burst fractures in patients with osteoporosis,and to provide more evidence for the treatment.Methods Retrospectively analyzed the clinical data of 121 patients with osteoporotic vertebral burst fracture from June 2012 to October 2015.And these patients were divided into two groups according to different operation methods, namely the control group (n=56) who were given short segment fixation and the observation group (n=65) who were given single segment fixation.The visual analogue scale(VAS),Oswestry disability index(ODI),vertebral height,kyphotic angle and bone mineral density of the two groups were analyzed before surgery and 3 days,1 month,3 months and 12 months after surgery.Results The VAS score,ODI score,vertebral height,and Cobb angle of the injured vertebra were significantly improved in both of the two groups,and the difference was statistically significant (P<0.05).The VAS score of the observation group was better than that of the control group 3 days after surgery with statistically significant difference (P<0.05).But there was no significant difference 3 months,6 months and 12 months after surgery(P>0.05).The ODI score of the observation group was better than that of the control group 3 days and 3 months after surgery with statistically significant difference (P<0.05),and there was no significant difference between the two groups till the end of follow-up.Pedicle fixation at the injured vertebra significantly improved the vertebral height and Cobb angle with statistically significant difference (P<0.05).And the anti-osteoporosis treatment significantly increased the bone mineral density (P<0.05).Conclusion Pedicle fixation at the injured vertebra is useful in pain relief as well as function and anatomical structure restoring.And anti-osteoporosis treatment is necessary for the bone mineral density increase.
4.Expression of STEAP4 Gene during the Period of Human Preadipocyte Differentiation
xiao-hui, CHEN ; ya-ping, ZHAO ; chun-lin, GAO ; chun-mei, ZHANG ; chun, ZHU ; jin-gai, ZHU ; xi-rong, GUO
Journal of Applied Clinical Pediatrics 2004;0(07):-
Objective To observe the expression of STEAP4 gene(a novel obesity-related gene) during the period of human preadipocyte differentiation and to explore the relationship between the STEAP4 gene expression and adipocytes differentiation,adipogenesis.Methods Human preadipocytes were cultured and differentiated into the matured adipocytes in vitro.Adipocytes morphology and lipid accumulation were observed during this process.Total RNA was extracted from adipocytes at various time points (preadipocyte,Day 0,Day 4,Day 6,Day 8,Day 11,Day 14,and Day 17) and the level of STEAP4 mRNA expression was measured by fluorescent real-time quantitative reverse transcriptase-polyme-rase chain reaction(RT-PCR).Results The level of STEAP4 mRNA expression remained high in preadipocytes.In the presence of differentiation medium (Day 4),there was a transient upregulation in the expression of STEAP4 gene.After that,with the human preadipocytes being differentiated into matured adipocytes,the expression of STEAP4 mRNA was downregulated and reached the lowest level in fully differentiated adipocytes.There was a significant difference between any 2 detected phases in the level of STEAP4 mRNA expression (Pa
5.Young Children's Family Sex Education in Rural Areas of Sichuan Province and Its Influencing Factors.
Xi ZHANG ; Jing ZHOU ; Xue-Mei DAI ; Fu-Rang HOU ; Yu-Yang GAO ; Liu-Qing YAN ; Ping YUAN
Acta Academiae Medicinae Sinicae 2020;42(4):452-458
To understand the family sex education for young children in rural areas of Sichuan province and analyze the influencing factors. A multi-stage random sampling method was used to select 2246 parents of kindergarten children from rural areas in Sichuan province for a questionnaire-based survey.The Chi-square test and Logistic regression model were used for data analysis. It was found 1132(52.33%)parents had implemented family sex education for young children and 1031(47.67%)had not.Young children having asked sex-related questions(=1.536,95%=1.257-1.878),parents thinking that early childhood sex education is necessary(=3.691,95%=2.029-6.717),and parents having the intention to know early childhood sex education(=1.700,95%=1.274-2.269),and kindergarten having implemented early childhood sex education(=3.316,95%=2.515-4.372)were promoting factors for parents to conduct early childhood sex education,whereas a total annual household income at the middle level(=0.664,95%=0.456-0.968)was a hindering factor for parents to conduct early childhood sex education. Parents of young children in rural areas of Sichuan province have poor awareness of sex education,and the proportion of parents who have never conducted sex education for children is high.The total annual income of the family,whether the children have asked about sex-related questions,parents' attitude towards early childhood sex education,and whether the kindergarten has conducted the early childhood sex education are important factors that influence the level of children's family sex education.
Child
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China
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Humans
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Logistic Models
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Parents
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Sex Education
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Surveys and Questionnaires
6.Mutation analysis for GJB2 and LOR genes in two patients with Vohwinkel syndrome.
Yu-mei LIU ; Xin-jing GAO ; Xin TIAN ; Xue-mei LI ; Xi-bao ZHANG
Chinese Journal of Medical Genetics 2013;30(2):203-206
OBJECTIVETo detect potential mutations of gap junction protein beta 2 (GJB2) and loricrin (LOR) genes in two patients with Vohwinkel syndrome.
METHODSPolymerase chain reaction and DNA sequencing were used for detecting potential mutations in the GJB2 and LOR genes. Parents of one patient and 50 healthy individuals were used as controls.
RESULTSA novel homozygous missense mutation (c.A796G) of LOR gene was detected in one patient. The same mutation was not found in the other patient, their relatives and the 50 healthy controls.
CONCLUSIONA missence mutation of LOR gene was detected in a patient with Vohwinkel syndrome.
Abnormalities, Multiple ; genetics ; pathology ; Adult ; Child, Preschool ; Connexin 26 ; Connexins ; genetics ; Female ; Hand Deformities, Congenital ; genetics ; pathology ; Hearing Loss, Sensorineural ; genetics ; pathology ; Humans ; Keratoderma, Palmoplantar ; genetics ; pathology ; Male ; Membrane Proteins ; genetics ; Mutation, Missense ; Sequence Analysis, DNA
7.Clinical study of the distensibility of large arteries in elderly patients with essential hypertension.
Zhi-Mian ZHANG ; Ji-le LIANG ; Hai-Qing GAO ; Man LI ; Xi-Mei GAO ; Feng-Hua MI ; Min CHEN
Chinese Journal of Epidemiology 2004;25(12):1068-1069
OBJECTIVETo explore the change in the distensibility of large arteries and its influencing factors in elderly patients with essential hypertension.
METHODSAutomatic measuring system for pulse wave velocity (PWV) was applied to examine carotid-femoral PWV as an index reflecting distensibility of large arteries. 118 hypertensive patients aged 64 - 83 (mean age 67.12 +/- 10.26) years were included in the study. Of them, 87 were males and 31 were females.
RESULTSPWV of 118 hypertensive patients increased with increasing age (P < 0.001). Multivariate regressive analysis demonstrated that age and systolic blood pressure had the close relationship with PWV (P < 0.001).
CONCLUSIONHypertension of the elderly could cause reduction of distensibility of large arteries. Age and systolic blood pressure had the close relationship with distensibility of large arteries in elderly patients with essential hypertension.
Age Factors ; Aged ; Aged, 80 and over ; Blood Flow Velocity ; Carotid Arteries ; physiopathology ; Elasticity ; Female ; Femoral Artery ; physiopathology ; Hemodynamics ; Humans ; Hypertension ; physiopathology ; Male ; Middle Aged ; Pulse
8.Expression and significance of cytokeratins in skin adenexal tumor.
Xin-Gong LI ; Li WEN ; Jing FU ; Zhi-Xiu XU ; Shu-Mei LIU ; Hong GAO ; Xi-Yin SUN ; Xiao-Qiu ZHOU
Chinese Journal of Pathology 2005;34(11):742-743
Adenoma, Sweat Gland
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metabolism
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Diagnosis, Differential
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Humans
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Keratin-14
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metabolism
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Keratin-17
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metabolism
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Keratin-18
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metabolism
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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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Papilloma
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metabolism
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Sebaceous Gland Neoplasms
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metabolism
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Skin Neoplasms
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metabolism
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Sweat Gland Neoplasms
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metabolism
10.Expression of recombinant spike protein of SARS-coronavirus in vaccinia virus and analysis of its immunogenicity.
Sen HU ; Qing-hua WANG ; Xi-jun WANG ; Xiao-mei WANG ; Zhi-gao BU
Chinese Journal of Virology 2007;23(4):287-291
A recombinant vaccinia virus (rWR-SARS-S)expressing spike protein of severe acute respiratory syndrome coronavirus was constructed. The expression of full length recombinant SARS spike protein (rSS) in HeLa cells possessing specific reaction ability to chicken anti-sera was confirmed by SDS-PAGE and Western-blot (190 kD). HeLa cells infected with rWR-SARS-S also showed high sensitivity in detecting specific serum antibody by indirect immunofluoresence assay (IFA). The results above indicated that the availability of such a faithful model system offers particular advantages for the study of SARS in that it reduces the need for direct manipulation of an exotic pathogen. In the absence of infectious SARS, we may safely carry out detailed biochemical and genetic manipulations to investigate features of viral replication and gene function, as well as explore new avenue for vaccine development.
Animals
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Antibodies, Viral
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immunology
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Antigens, Viral
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immunology
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Blotting, Western
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Chickens
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Enzyme-Linked Immunosorbent Assay
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Fluorescent Antibody Technique, Indirect
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Gene Expression
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HeLa Cells
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Humans
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Immune Sera
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immunology
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Immunization
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methods
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Membrane Glycoproteins
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genetics
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immunology
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Mice
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Recombinant Proteins
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immunology
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SARS Virus
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genetics
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immunology
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Spike Glycoprotein, Coronavirus
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Vaccinia virus
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genetics
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Viral Envelope Proteins
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genetics
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immunology