1.Research progress of fluorometholone on dry eye
International Eye Science 2016;16(8):1474-1476
?Dry eye is a common eye disease around the world, which has highly incidence. Although there are many treatment measures for dry eye, the clinical effect is not satisfactory. There is a close relationship between inflammation and dry eye, so the researchers pay more attention on anti -inflammatory therapy, such as fluorometholone. To explore the effect of anti -inflammatory medicine on dry eye, put forward the problems and shortcomings as well, lay the foundation for further study, and provide a strong theoretical basis for the clinical use of anti-inflammatory drugs in the treatment of dry eye, the author summarizes the clinical and experimental research progress of fluorometholone on dry eye in China and abroad.
2.Comprehensive yield and quality comparison of Bupleurum chinense' s seeds of different harvesting time from Qingchuan County with Topsis approach.
Ru-Yu YAO ; Xing-Fu CHEN ; Li AI ; Fei WANG ; Qiang CHEN ; Xing-Wang YANG
China Journal of Chinese Materia Medica 2013;38(24):4271-4276
In order to investigate the comprehensive quality differences of the seeds harvested in different growing time, and offer theoretical guide for the optimization of seeds' production technology, we analyzed the apparent size, 1 000-grain weight, water absorbency, germination indexes, postharvest embryo rate change, relatively contents of coumarins and the yield of single plant of its seeds of different harvesting time, and compared their comprehensive quality by Topsis analysis. The results showed that there existed obvious differences in yield and quality between seeds of 3 harvesting times. While the harvesting time postponed, the yield of single plant raised, and the shrunken seeds rate decreased, the quality of seedlings increased, while the contents of coumarins showed a steady increase, and the germination rate decreased. The comprehensive quality of the seeds harvested in the black ripe time rank the first place, followed by the brown ripe time and the yellow ripe time. As the harvesting time delays, the seeds' comprehensive quality increases, therefore, we could put off the seeds' harvesting time properly for the high efficient seed production.
Bupleurum
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growth & development
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metabolism
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physiology
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Germination
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Plant Proteins
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chemistry
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metabolism
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Quality Control
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Seeds
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growth & development
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metabolism
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physiology
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Solubility
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Time Factors
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Water
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metabolism
3.Evaluation of MTBDRplus 2.0 in the diagnosis of drug resistance of Mycobacterium tuberculosis
RU Haohao ; YANG Xing ; CHEN Lianyong ; CHEN Tao ; YAN Shuangqun ; XU Lin
China Tropical Medicine 2024;24(3):271-
Objective To evaluate the sensitivity and specificity of the GenoType MTBDRplus V2.0 (Mycobacterium tuberculosis and resistance gene detection assay kit using PCR-linear probe hybridization with enzyme chromogenic method, referred to as MTBDRplus 2.0) kit for detection of rifampin and isoniazid resistance, providing the basis for improving the detection of drug-resistant Mycobacterium tuberculosis. Methods From January to December 2022, positive strains of Mycobacterium tuberculosis isolated and cultured from designated tuberculosis treatment hospitals in 32 counties (cities, districts) of Yunnan Province were collected. Resistance in 880 strains of Mycobacterium tuberculosis was detected by MTBDRplus 2.0, and the minimum inhibitory concentration (MIC) method was used for the drug sensitivity test. Results Using the MIC method as the gold standard, the sensitivity, specificity, positive predictive value, and negative predictive value of MTBDRplus 2.0 in detecting isoniazid resistance were 67.69%, 98.40%, 77.19%, and 97.45%, respectively. The consistency of the linear probe method and MIC method in detecting isoniazid resistance was moderate, with a Kappa value of 0.701 (P<0.001); the sensitivity, specificity, positive predictive value, and negative predictive values of MTBDRplus 2.0 in detecting rifampicin resistance were 87.80%, 99.40%, 87.80%, and 99.40%, respectively. The consistency of rifampicin resistance detection between MTBDRplus 2.0 and MIC method was relatively good, with a Kappa value of 0.872 (P<0.001). Among the 13 strains showing resistance to isoniazid with MTBDRplus 2.0, but sensitivity according to the MIC method, 11 strains (84.62%) had mutations in the inhA gene (C15T). Out of the 5 strains showing resistance to rifampicin with MTBDRplus 2.0, but sensitivity according to the MIC method, 4 strains (80.00%) had other mutations in the rpoB gene. Conclusions MTBDRplus 2.0 shows high sensitivity and specificity in detecting rifampicin resistance, but slightly low sensitivity in detecting isoniazid resistance. The low sensitivity in detecting isoniazid resistance may be due to insufficient target coverage of the detection kit. inhA gene mutations are poorly correlated with isoniazid resistance, and other mutations in the rpoB gene are poorly correlated with rifampicin resistance.
4.Clinical randomized double-blinded study on treatment of vascular dementia by jiannao yizhi granule.
Bo-li ZHANG ; Yong-yan WANG ; Ru-xing CHEN
Chinese Journal of Integrated Traditional and Western Medicine 2002;22(8):577-580
OBJECTIVETo observe the effect of Chinese herbal medicine in treating vascular dementia (VD) and to explore the method for therapeutic effect evaluation.
METHODSMulti-center, double-blinded randomize-controlled method was adopted to observe the effect of treatment of 242 patients with VD of mild or middle degree, they were 89 cases in the TCM group, 106 cases in the western medicine group and 47 in the placebo group. Minimental state examination (MMSE), Blessed dementia scoring on TCM symptom classified evaluation were used to evaluate the therapeutic effect after 60 days treatment.
RESULTSThe total effective rate of Jiannao Yizhi Granule was 58.4%, showing a better effect than that of the placebo group and the western medicine group respectively. The treatment was superior in holistic regulation and systemic functional state improvement, it could not only improve the mild middle key symptoms of VD and the mental disorder induced reduction of functional activities, but also alleviate or eliminate the peripheral symptoms of VD.
CONCLUSIONThe effect of treatment of vascular dementia by Jiannao Yizhi Granule is certain and is worth spreading.
Aged ; Dementia, Vascular ; drug therapy ; Double-Blind Method ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Multicenter Studies as Topic ; Phytotherapy
5.Identification of a mutation in the arginine vasopressin receptor 2 gene in a Chinese pedigree with congenital nephrogenic diabetes insipidus
Xue-Ru CHEN ; Yan DONG ; Jun YIN ; Hui-Li XING ; Qing SU ;
Chinese Journal of Endocrinology and Metabolism 1985;0(02):-
Genomic DNA was extracted from the blood samples of 3 patients from 1 pedigree with congenital nephrogenie diabetes insipidus (NDI) and their 12 family members.The whole coding region of the arginine vasopressin receptor 2 (AVPR2) gene was amplified by PCR and then directly sequenced,A mutation of AVPR2 gene [g1236T→C (L292P)]was found in 3 patients.The patients' mothers were found to have both mutant and normal alleles.
6.Repair of damaged intestinal mucosa in a mouse model of sepsis
Rui-Ming CHANG ; Li-Qiang WEN ; Jian-Xing CHANG ; Yu-Ru FU ; Zhi-Peng JIANG ; Shuang CHEN
World Journal of Emergency Medicine 2013;4(3):223-228
BACKGROUND:The intestine is not only the main target attacked by sepsis but also the vital organ which mediated sepsis. The recovery of the damaged intestinal barrier structure and function is related to the occurrence and outcome of multiple organ dysfunction syndrome (MODS). How to protect and reduce the damage of the intestinal mucosa and how to promote the reconstruction of the intestinal mucosa have been the important topics in sepsis for many years. This study aimed to investigate the influential factors of intestinal mucosal reconstruction after intestinal epithelial injuryin vivo in a mouse model of sepsis.METHODS:Mice were subjected to cecal ligation and puncture (CLP) for induction of sepsis to assess intestinal mucosal damage, epithelial cell apoptosis, and transformed number of goblet cells, and to detect the concentration of TNF-α, IL-1 and TGF-β1 and TFF3 (trefoil factor 3) expression in the small intestinal mucosa. All above were performed by HE staining, western blot, ELISA and immunohistochemistry respectively. The experimental animals were divided into a sepsis group and a sham-operation group. The animals with sepsis were separately killed at 6 (7 animals), 24 (7 animals) and 48 hours (7 animals) after CLP.RESULTS:Injured intestinal mucosa was observed in the 3 groups under a light microscope, in which damage scores in the 24-hour and 48-hour groups were higher than in the 6-hour group and no difference was found between the two groups. Moreover, less of goblet cells or other epithelial cells adjacent to the injured surface migrated into the wound to cover the denuded area. The number of goblet cells was substantially decreased in the three CLP groups compared with the sham-operation group. Protein levels of IL-1 and TNF-α were significantly increased by 3-4 fold at all time points when compared with the sham-operation group, and cleaved caspase-3 by 4 fold. Although TFF3 expression was modestly increased for 6 hours after the onset of CLP, it appeared to decline at 24 hours and 48 hours as shown by Western blot. A similar tendency was observed upon TGF-β1, i.e. the protein level was not elevated at 24 hours and 48 hours, but increased modestly at 6 hours.CONCLUSIONS:Sepsis from CLP shows less restitution on the surface of injured intestinal mucosa. There is evidence that both constant inflammatory reaction and epithelial cell apoptosis may affect mucosal reestablishment of the intestine at the onset of sepsis. Mucosa after severe sepsis showed the state of high inflammation, and declined goblet cell function and mucosal reconstruction, which affected the repair of damaged intestinal barrier. Constant inflammatory reaction, and declined goblet cell function and mucosal reconstruction ability may affect the reestablishment of intestinal mucosa at the onset of sepsis.
7.Investigation on anti-hepatitis B virus active components and mechanism of Salvia miltiorrhiza based on network pharmacology
Hai-mei WEN ; Si-yuan WANG ; Ya-ru WANG ; Feng-li XING ; Yong CHEN ; Wen-tao CAI
Acta Pharmaceutica Sinica 2022;57(5):1375-1386
We predicted the anti-hepatitis B virus (HBV) active components and mechanism of
8.Effect of Transcranial Direct Current Stimulation on Post-stroke Dysphagia: A Systematic Review
Liang CHEN ; Jie CHEN ; Ru-Fang ZHANG ; Xing-Gui LI ; Qun-Ling ZHAN
Chinese Journal of Rehabilitation Theory and Practice 2018;24(6):726-733
Objective To evaluate the effect of transcranial direct current stimulation (tDCS) on post-stroke dysphagia. Methods Cochrane Library (CENTRAL), Medline, EMBASE, CBMdisc, VIP, CNKI and WANFANG Digital Journals were searched to collect randomized controlled trials (RCTs) about transcranial direct current stimulation for post-stroke dysphagia until February 2018. Two researchers independently screened literature, extracted data and evaluated the quality of the included studies. Then, meta-analysis was performed using RevMan 5.3 software. Results A total of eight RCTs were screened, including 225 patients. Compared to the control group, tDCS was effective on post-stroke dysphagia (SMD=0.71, 95%CI: 0.32~1.10, P<0.001) with safety. Conclusion tDCS could improve swallowing function of post-stroke dysphagia. Due to the limited quantity and quality of the included studies, more high quality studies are needed.
9.Effect of dahuang zhechong pill on content of amino acids in hippocampal tissue of ischemic cerebral hemorrhagic rats.
Gao-zhong DAI ; Ru-xing CHEN ; Hong-chang WEI
Chinese Journal of Integrated Traditional and Western Medicine 2006;26(6):538-540
OBJECTIVETo observe the effect of Dahuang Zhechong Pill (DZP) on the content of amino acids in hippocampal tissue of model rats of ischemic cerebral hemorrhage (ICH).
METHODSCollagenase and heparin were injected into caudate nucleus to establish ICH rat model. The content of glutamic acid (Glu), aspartic acid (Asp) and gamma-aminobutyric acid (GABA) in hippocampal tissue was detected by anti-phase high-performance liquid chromatographic fluorimetry to observe the effect of DZP on the content of amino acids in brain tissue.
RESULTSThree days after modeling, the content of Glu, Asp and GABA was significantly higher in the model group than those in the sham-operation and the normal control group (P < 0.05), for Glu 15.2926 +/- 4.2429 micromol/g vs 8.0057 +/- 1.1227 micromol/g and 8.5040 +/- 1.7794 micromol/g, for Asp 3.6384 +/- 3.1021 micromol/g vs 1.4986 +/- 0.4174 micromol/g and 1.2669 +/- 0.4695 micromol/g, and for GABA 0.3859 +/- 0.1846 micromol/g vs 0.1829 +/- 0.04665 micromol/g and 0.1770 +/- 0.0472 micromol/g. The content of Glu (9.0550 +/- 1.7195 micromol/g), Asp (1.8085 +/- 0.6862 micromol/g) and GABA (0.1993 +/- 0.0424 micromol/g) in hippocampal tissue in the DZP group was reduced significantly, as compared with that in the model group (P <0.05).
CONCLUSIONDZP could reduce the release of excitatory amino acids (EAA-Glu, ASP) to balance EAA/inhibitory amino acid (IAA), so as to relieve ICH-induced brain injury.
Amino Acids ; metabolism ; Animals ; Aspartic Acid ; metabolism ; Cerebral Hemorrhage ; drug therapy ; Drugs, Chinese Herbal ; therapeutic use ; Glutamic Acid ; metabolism ; Hippocampus ; metabolism ; Male ; Phytotherapy ; Rats ; Rats, Sprague-Dawley ; gamma-Aminobutyric Acid ; metabolism
10.Dynamic evaluation on body weight gain in premature infants and its significance.
Xi-fang RU ; Qi FENG ; Ying WANG ; Xin ZHANG ; Xing LI ; Jing-wen MENG ; Zai-chen GUO
Chinese Journal of Pediatrics 2010;48(9):661-667
OBJECTIVESTo investigate the incidence of intra- and extrauterine growth retardation (EUGR) and growth restriction in premature infants, and to illustrate the growth pattern of them in postnatal and infantile period.
METHODSAll premature infants were admitted to our neonatal intensive care unit (NICU) during the recent 7 years. The criteria for enrollment were (1) gestational age < 37 weeks; (2) single fetus; (3) admitted within the first 24 hours of life; (4) hospitalization period ≥ 14 days; (5) clinical follow-up persisted till ≥ 3 months of corrected gestational age. Intrauterine growth restriction (IUGR), EUGR and growth restriction were defined as having a measured growth value (weight) that was ≤ 10(th) percentile of Chinese infants' growth curve in corrected age on admission, discharge and follow-up period. Results were analyzed by using SPSS 12.0 statistical software package by chi-square test, rank-sum test, and t test.
RESULTSTwo hundred and thirty nine infants were involved, 134 were boys and 105 girls. The incidence of IUGR and EUGR assessed by weight was 25.5% and 40.6%, respectively. The lower the birth weight was, the higher the incidence of IUGR and EUGR was. The percentile of body weight in the growth curve at discharge was lower than that at birth (Z = -7.784, P = 0.000). The incidence of growth restriction assessed by weight was 20.5%, 15.0%, 8.8%, 17.0%, 10.4%, 10.1%, 11.9%, 7.0% at corrected gestational age of 38 - 40 weeks, corrected age of 28 d, 61 d, 91 d, 122 d, 152 d, 183 d, and 274 d, respectively. The incidences of growth restriction were stable when the corrected age was older than 91 days. The incidence of growth restriction in female premature infants at 183 days' corrected age was higher than that in male children (χ(2) = 6.181, P = 0.017), the incidence was 19.3% and 3.8% respectively. During the follow-up period, most of the average body weight of premature infants whose gestational age was < 32 weeks or birth weight ≤ 1500 g were lower than the 50(th) percentile of the growth curve except the average body weight of boys whose gestational age < 32 weeks at corrected age of 2 and 4 months.
CONCLUSIONSPremature and/or low birth weight infants are at high risk of growth restriction, especially very low birth weight infants. The incidence of growth restriction decreased with growth. Long-term prognosis requires further investigation.
Body Weight ; Female ; Fetal Growth Retardation ; Follow-Up Studies ; Humans ; Infant, Newborn ; Infant, Premature ; growth & development ; Male ; Weight Gain