2.Chemical constituents from Clerodendrum canescens
Chinese Traditional and Herbal Drugs 1994;0(02):-
Objective To investigate the chemical constituents in the whole plant of Clerodendrum canescens. Methods The compounds were isolated by column chromatography over silica gel or Sephadex LH-20 gel and their structures were elucidated by chemical and spectroscopic methods. Results Seven triterpenoids were isolated and identified as: lupeol (Ⅰ), ?-amyrin 3-undecanotate (Ⅱ), lupeol acetate (Ⅲ), lupeol 3-palmitate (Ⅳ), melastomic acid (Ⅴ), ?-amyrin acetate (Ⅵ), betulinic acid (Ⅶ), respectively. Conclusion Among those compounds, compound Ⅱ is a new one, while compounds Ⅳ-Ⅵ are isolated from the plants of Clerodendrum Linn. for the first time.
3.Study on inducing immune response by cotransfection of rat breast cancer cells with MIP-1α and B7-1
Chongqing Medicine 2013;(28):3398-3399,3402
Objective To investigate the ability of immune response of cotransfection of rat breast cancer cells with MIP-1αand B7-1 .Methods Tumor growth was observed every day after the SHZ-88 breast cancer cells were inoculated in the rats .The tumor-bearing rats were randomly divided into control group ,MIP-1αgroup ,B7-1 group and combination group ,which were injected with corresponding transgenic cells .The change of tumor volume in 1~4 weeks and the survival time were observed and compared .The peripheral blood was collected .CD4+ ,CD8+ percentage and CD4+ /CD8+ ratio and the levels of IL-2 and IFN-γof the peripheral blood were detected and compared .Results The tumorigenic rate were 100% ,20% ,30% and 0% after the SD rats were inoculated with SHZ-88 ,SHZ-88/MIP-1α,SHZ-88/B7-1 and SHZ-88/MIP-1α+B7-1 cells for 10 days .After the transgenic therapy ,the tumor volume of the combination group in 1~4 weeks were significantly smaller than the other groups .The survival time of the combina-tion group was significantly longer than the other groups .The CD4+ ,CD8+ percentage and CD4+ /CD8+ ratio and the levels of IL-2 and IFN-γof peripheral blood in the combination group were significantly higher than the other groups .The differences above were all statistically significant (P<0 .05) .Conclusion Cotransfection of MIP-1αand B7-1 could induce immune response in breast cancer rats and play anti-cancer effects .
4.Making Sense of Chronic Kidney Disease in Primary Care Part 2 – Management
The Singapore Family Physician 2021;47(1):64-68
Chronic kidney disease (CKD) is common worldwide and in Singapore. The primary care physicians play an important role in managing patients with CKD, especially in the early stages of CKD. The primary objectives of CKD management are (1) slowing down the progression of CKD, (2) managing the complications of CKD, and (3) establishing the longterm kidney care plan. The interventions to slow down the progression of CKD are to identify the cause of CKD, use the renin-aldosterone system blocker and the sodium-glucose cotransporter-2 inhibitor in suitable CKD populations, optimise blood pressure and glycaemic control, correct acidosis, avoid acute kidney injury and nephrotoxin, and modify dietary and lifestyle habits. For complications of CKD, the focus is on reducing cardiovascular
risk, and managing anaemia, mineral bone disease, electrolytes imbalances and fluid overload. Lastly, there is a need to establish CKD patient’s treatment goals and initiate advanced care planning in a patient with progressive CKD to facilitate future care.
5.Reverse genetics of rabies virus and its applications.
Chinese Journal of Virology 2008;24(6):478-482
Genetic Engineering
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Humans
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Rabies
;
virology
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Rabies virus
;
genetics
;
pathogenicity
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Viral Proteins
;
genetics
;
Virulence
6.Botulinum toxin A injection under flexible fiberoptic laryngoscope guidance for treatment of adductor spasmodic dysphonia.
Jia-jia WANG ; Yu-fang LIANG ; Chun-sheng WEI
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2012;47(7):601-602
Adult
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Aged
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Botulinum Toxins, Type A
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therapeutic use
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Dysphonia
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therapy
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Female
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Humans
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Laryngoscopy
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Male
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Middle Aged
7.Inhibition of ovarian cancer growth by small interfering RNA targeting X-linked inhibitor of apoptosis gene
Jia-Jia MA ; Bi-Liang CHEN ; Xiao-Yan XIN ;
Chinese Journal of Obstetrics and Gynecology 2001;0(02):-
Objective To construct an RNA interference vector to down-regulate X-linked inhibitor of apoptosis(XIAP)gene and study the RNA interference effect on the cell cycle and growth of ovarian cancer.Methods Oligonucleotides of 64 base pairs for hairpin RNA targeting XIAP were designed, chemically synthesized,annealed,and cloned into the pSUPER vector.After identification by restriction digestion,the correct vectors were transiently transfected into SKOV3 cells,a human ovarian cancer cell line.The XIAP mRNA was detected by RT-PCR.The proteins were detected by western blot and indirect immunofluorescence staining.Flow cytometry(FCM)analysis and methyl thiazolyl tetrazolium(MTT)assay method were applied to measure cell cycle,cell growth and sensitiveness to cisplatin.Results SKOV3 cells had a high level expression of XIAP.The vector of RNA interference,which can interfere with XIAP gene was successfully constructed.After transient transfection,the expression of XIAP protein was significantly decreased in SKOV3 cells and the value of relative density was 3584?124,2138?65,1973?80 and 110 ?12,respectively(P=0.0334).At the same time,the expression of XIAP mRNA was decreased accordingly and the value of relative density was 6674?274,4532?107,2322?57 and 1864?78, respectively(P=0.0127).The FCM results showed that,the vector could increase the number of cells in G_1 phase compared with parent cells and compared with the cells transfected with pSUPER(P
8.Thoughts on drug patent strategies in foreign countries
Qiyan JIA ; Liang XU ; Tongyu FANG
Chinese Journal of Medical Science Research Management 2012;25(1):10-11,36
To provide references for implementing drug patent strategy in China,we introduced the drug patent strategies of America,Japan and Germany,which rank the first three in the amount of patent in the world,and analyzed their successful experiences.
9.Intervention Effects of Pollen Typhae Total Flavone on INS-1 PancreaticβCells Damage Induced by Palmitic Acid
Xiaotao FENG ; Jia LIU ; Ning LIANG
Journal of Guangzhou University of Traditional Chinese Medicine 2015;(5):899-902,913
Objective To investigate the effects of Pollen Typhae total flavone (PTF) on INS-1 pancreaticβcell damage induced by palmitic acid ( PA) . Methods INS-1 pancreatic β cells were given long-term induction with PA to establish the impaired cell model, and then were intervened with PTF. Cell viability was determined by tetrazolium salt ( XTT) colorimetry. Results PA impaired the viabilities of INS-1 pancreatic β cells in concentration- and time-dependent manner, and PTF improved the impairment of INS-1 pancreatic β cells induced by PA in concentration -dependent manner. Moreover, PTF showed better improvement on the impairment when the INS-1 pancreatic β cells were impaired more seriously by PA. Conclusion PTF has effects on ameliorating the impairment of INS-1 pancreaticβcells induced by PA for long time.
10.The analysis of ABR about newborns in the neonatal intensive care unit after failing hearing screening
Jia LIANG ; Bin ZOU ; Bing WANG
Chongqing Medicine 2017;46(14):1931-1932,1937
Objective To investigate the auditory brainstem response (ABR) of newborns in the neonatal intensive care unit (NICU) after hear screening failure.Methods To test ABR of 833 healthy newborns with no perinatal diseases at the clinic,and 425 newborns born in NICU who failed the hearing screening of monaural or both-ear from March 2014 to May 2015.Results 49.6% of children′s wave V response thresholds were ≥30 dB in the NICU group and 36.1% children′s wave V response thresholds were ≥30 dB in healthy group.The hearing abnormality rate of the NICU group was significantly higher than that of the healthy group(P<0.05);The average auditory thresholds healthy of the group[(19.76±6.59)dB] was significantly lower than those of the NICU group[(41.52±20.35)dB](P<0.05);both ear latency for waves Ⅰ,Ⅲ and Ⅴ and interpeak latency for waves Ⅰ-Ⅴ in healthy group were significantly shorter than those in NICU group (P<0.05).Conclusion The hearing loss extent of the NICU group is greater than that of the healthy group.The ABR abnormality reflects auditory pathway is abnormal.