1.Advances in the study of organic anion transporting polypeptide 1B3.
Acta Pharmaceutica Sinica 2011;46(11):1279-85
OATP1B3, a member of SLC superfamily, is specifically expressed on the sinusoidal membrane of hepatocytes and is considered to be important in hepatic drug elimination. The overexpression of OATP1B3 was found recently in tumor tissues such as prostate, colon, and pancreatic tumors. Sequence variations in SLCO1B3 gene, such as SNPs, have been described and a common haplotype consisting of 334T>G and 699G>A SNPs is related to altered transport characteristics of OATP1B3. OATP1B3 is of relevance to drug metabolism through affecting alteration of hepatic concentration of endo- and xenobiotic compounds that interact with nuclear receptors such as PXR and CAR, and thereby directly alter the extent of target gene transcription, including major CYP isoenzymes such as CYP3A4. This review will provide an overview of substrates and inhibitors of OATP1B3 and subsequently to assess the effect of genetic mutation on transport activity. The studies linking OATP1B3 with cancer clinical outcomes are also discussed in this review.
2.Effect of RGD-insulin on activities of bone resorption and the possible mechanism in human osteoclast-like cells in vitro
Chinese Journal of Geriatrics 1995;0(02):-
Objective In this study, we explored the mechanism of anti-bone resorption of RGD-insulin using osteoclast-like cells (OLCs) from giant cell tumor of bone as an in vitro model. Methods The function of bone resorption was observed and the staining for tartrate-resistant acid phosphatase (TRAPase) was identified. The carbonic anhydrase Ⅱ (CAⅡ) gene expression, apoptosis and the adhesion of OLC that treated by RGD-insulin and echistatin were determined by in situ hybridization, TUNEL staining and adhesion test, respectively. Results OLCs were TRAP positive and had bone resorptive function. After OLCs were treated with 10 -5, 10 -6, 10 -7mol/L RGD-insulin and echistatin respectively, the numbers of TRAP-positive multinucleated cells were (179?3), (238?11), (351?10) per well that treated with echistatin and (229?20), (222?21), (265?17) per well that treat with RGD-insulin.The expression of CAⅡ mRNA decreased, the number of OLCs apoptosis increased in a dose-dependent manner (P
5.Application of Raman spectroscopy in the stomatology.
West China Journal of Stomatology 2015;33(2):214-217
Raman spectroscopy is an optical technology based on the theory of Raman scattering, which is generally used in the research of medical and biological science. Raman spectroscopy can be used to detect the molecular structures and components of proteins, lipids, DNA, and other biological molecules, and provide substantial information about molecules. Thus, Raman spectroscopy is generally considered a "molecular fingerprint", and it has exceptional advantages in medical research. Moreover, this technique can reflect the changes in molecular structures and detect the alterations of chemical constituents in the samples. Raman spectroscopy, given its high sensitivity and specificity in the detection of the biological samples, has been successfully used to detect and diagnose diseases in numerous sites, such as skin, oral mucosa, breast, head, and neck. In this paper, we introduce the application of Raman spectroscopy in stomatology by conducting a review of the literature.
DNA
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Lipids
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Oral Medicine
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Proteins
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Sensitivity and Specificity
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Spectrum Analysis, Raman
6.Case of chronic adrenocortical hypofunction.
Hongliang LI ; Zhihui XUE ; Jie YAN
Chinese Acupuncture & Moxibustion 2015;35(9):947-948
7.Effect of Mirtazapine on Depression after Cerebral Infarction and Rehabilitation of Neurological Functions
Jianjun MA ; Xue LI ; Yan FENG
Chinese Mental Health Journal 2002;0(07):-
Objective: To observe the efficacy of mirtazapine in the treatment of depression after cerebral infarction and its effect on rehabilitation of neurological functions. Methods:117 patients with acute cerebral infarction comorbid with major depression were randomly allocated to two groups treated with mirtazapine (57 cases) or not (60 cases). Hamiltion Depression Rating Scale (HAMD), Zung's Self-rating Depression Scale(SDS), modified Edingburgh-Scandinavian Stroke Scale (SSS) and Activity of Daily Living(ADL) were measured at baseline, 2 weeks, 4 weeks, 8 weeks and 6 months after randomization.Results:At the end of 6 months trial, the effective rate for depression of mirtazapine group was 100%, including 41 with relief (41/57, 71.9%); while that of control group was 13.4% (3/60), with only 4 with relief (6.7%). For neurological function, 78.9% (45) patients in mirtazapine group had significant improvement, that number in control group was 31 (51.7%). From the third week, patients in mirtazapine group had better ADL results than baseline (31.2?11.2/39.2?15.8), at the end of 6 months, their activity of daily life was much better than that of control (15.7?5.4/21.8?9.7, t=4.17,P
8.Clinical observation of locally advanced pancreatic cancer treated by compound matrine injections combined with three-dimensional conformal intensity modulated radiotherapy
Cancer Research and Clinic 2014;26(3):190-192
Objective To study the recent clinical efficacy of compound matrine injections combined with three-dimensional conformal intensity modulated radiotherapy in the treatment of locally advanced pancreatic cancer.Methods 48 cases of untreated locally advanced pancreatic cancer were randomly divided into treatment group (compound matrine injections combined with three-dimensional conformal intensity modulated radiotherapy) and control group (three-dimensional conformal intensity modulated radiationtherapy),there were 24 cases in each group.Three-dimensional conformal intensity modulated radiation therapy used 95 % isodose coverage PTV.Using 6 MV X-ray irradiation,2 Gy/day,5 times/week,the total radiation dose was 50 Gy/25 times/5 weeks to complete.Treatment group:one week before treatment infusion of compound matrine injections 20 ml/time,l/d,21-day was one cycle.Control group:simple intensity modulated radiotherapy.Results After treatment,the clinical benefit response rate of the treatment group was 87.5 % (21/24),the control group was 70.83 % (17/24),the difference was statistically significant (P =0.045).Term efficacy rate of the treatment group was 79.17 % (19/24),the control group was 50.00 % (12/24),the difference was statistically significant (P =0.035).Adverse reactions were hematologic toxicity,leukopenia occurred in the treatment group was 16.67 % (4/24),but the control group was 45.83 % (11/24),the difference was statistically significant (P =0.029).Conclusion The effects of compound matrine injections combined with three-dimensional conformal intensity modulated radiotherapy for locally advanced pancreatic cancer are good,they can relieve pain,improve short-term efficacy,reduc side effects,and improve the quality of life.
9.Accuracy of des-γ-carboxy prothrombin(DCP) for diagnosis of primary hepatocellular cancer: a Meta-analysis
Xue LI ; Yan DING ; Nianyao WANG
Chinese Journal of Clinical Laboratory Science 2017;35(5):390-395
Objective To carry out a systematic evaluation for the diagnostic accuracy of Des-γ-carboxy-prothrombin(DCP) in primary hepatocellular cancer(PHC) by Meta-analysis.Methods The published international and domestic studies on DCP in the diagnosis of PHC were searched in multiple databases from its inception until December 2016.A total of seventeen studies were finally selected,among which 1 970 cases of PHC group and 2 588 cases of control group were included.The control group was composed of chronic hepatitis,cirrhosis,tumors in other systems and healthy subjects with physical examination.A meta-analysis was performed using Stata 12.0.Results The overall pooled results of the analysis and the 95% confidence intervals were as follows:the sensitivity(SEN) was 0.79 (0.74 to 0.83),the specificity (SPE) was 0.90 (0.87 to 0.93),the positive likelihood ratio(PLR) was 8.1 (5.8 to 11.1),the negative likelihood ratio(NLR) was 0.24(0.19 to 0.29),the diagnostic odds ratio(DOR) was 34(21 to 55) and the area under the summary receiver operator characteristic curve (SROC) was 0.91 (0.89 to 0.93).The sensitivity combined the detections of AFP and DCP in the diagnosis of PHC was 0.90 with 0.94 of AUCROC and 56 of DOR.Conclusion The serum DCP may exhibit a relatively higher diagnostic specificity for PHC.The combined detections of AFP and DCP could improve the sensitivity and diagnostic accuracy.
10.Distribution of mean platelet volume in the healthy and impaired fasting glucose individuals
Jing XUE ; Lixia LYU ; Wei LI ; Li YAN ; Hua YAN
Chinese Journal of Laboratory Medicine 2014;(6):451-454
Objective The different distribution and clinical significance of mean platelet volume (MPV) in the healthy normoglycemic and impaired fasting glucose (IFG) individuals were discussed.Methods The 499 individuals including 184 male and 315 female,who had undergone health checks in Tianjin Huanhu Hospital during May and July 2012 were studied retrospectively.Average age is forty-five ( thirty-five to eighty).Subjects were categorized into four groups according to fasting plasma glucose ( FPG) levels:G1 (3.89 mmol/L≤FPG<5 mmol/L, n=125),G2(5 mmol/L≤FPG <5.5 mmol/L, n=121), G3(5.5 mmol/L≤FPG<6.1 mmol/L, n=142), and G4(6.1 mmol/L≤FPG<7 mmol/L, n=111).G1, G2, and G3 are defined as normal FPG groups and G 4 is defined as IFG group.Eighty-nine cases in the same age patients with type II diabetes mellitus group ( G5 ) were observed at the same time.Results The MPV increased with the increasing FPG levels in the following order:G1(8.62 ±0.77) fl, G2 (8.85 ±0.80) fl, G3(8.90 ±0.69) fl,G4(9.14 ±0.78) fl and G5(12.03 ±1.42) fl.MPV[(12.03 ±1.42) fl] of type Ⅱdiabetes mellitus group(G5) was higher than that in the IFG group (G4)[(9.14 ±0.78) fl] and normal FPG groups[G1(8.62 ±0.77) fl,G2(8.85 ±0.80) fl,G3(8.90 ±0.69) fl] (F=12.773,P<0.01);MPV of the IFG group [ ( 9.14 ±0.78 ) fl ] was significantly higher than that in normal FPG groups [ G1 (8.62 ±0.77) fl,G2(8.85 ±0.80) fl,G3(8.90 ±0.69) fl] (F=12.773,P<0.01 for G4 vs.G1 and G2, P<0.05 for G4 vs.G3) ;MPV in the high-normal glucose group (G3) [(8.90 ±0.69) fl] was obviously higher than that in the low-normal glucose group (G1) [(8.62 ±0.77) fl] (F=12.773,P<0.05);MPV was positively associated with FPG in normal FPG groups ,IFG group and type Ⅱ diabetes mellitus group (G1-3:r=0.22, P<0.05;G4:r=0.26, P<0.01;G5:r=0.29, P<0.01).Conclusions Significant difference of MPV was observed in population of different FPG levels.Especially, MPV in IFG group was evidently higher than that in normal FPG group and was positively associated with FPG levels.