1.Study on the difference of sunitinib and sorafenib as first-line treatment in advanced renal carcinoma
Journal of International Oncology 2016;43(1):8-11
Objective To evaluate the efficacy and safety of sunitinib versus sorafenib in the first-line treatment of advanced renal cell carcinoma.Methods Forty-two patients with advanced renal cell carcinoma were divided into two groups according to the therapeutic method.Twenty patients were treated with sunitinib (50 mg, oral administration, once a day, for 4 weeks, drug withdrawal of 2 weeks, 6 weeks was a cycle) and 22 patients were treated with sorafenib (400 mg, oral administration, twice a day, until the disease progression, 6 weeks was a cycle).The efficacy and toxicity were evaluated every 2-cycle treatment.Results All 42 patients could be evaluated.The disease remission rate (RR), disease control rate (DCR) of sunitinib group and sorafenib group were 30.0% (6/20), 22.7% (5/22), 90.0% (18/20), 77.3% (17/22) respectively,the median progression free survival (PFS) were 10.8, 6.2 months, the median overall survival (OS) were 25.6, 18.6 months respectively.There were no statistical differences in the RR (x2 =0.287, P =0.592) and DCR (x2 =1.222, P =0.269) between the two groups.There were statistical difference in the PFS (x2 =6.041, P =0.014) and OS (x2 =11.245, P =0.001) between the two groups.The most common toxicities of the sunitinib group were diarrhea, fatigue, oral mucositis, nausea, vomiting, all these toxicities were mainly Ⅰ-Ⅱ degree, and could be well tolerated.The hand-foot syndrome rate of the sorafenib group obviously exceeded the sunitinib group (59.1% vs.25.0% , x2 =4.972, P =0.026).Conclusion Sunitinib has good efficacy in the first-line treatment of advanced renal cell carcinoma with less toxicity than sorafenib, so it is worthy of popularization.
2.Identification of a novel COL4A4 mutation in a family with thin-basement-membrane nephropathy and the pathogenic mechanism
Guoqing ZHANG ; Nan LIN ; Min GUO ; Yan XU
Chinese Journal of Nephrology 2016;32(2):94-98
Objective To explore a new pathogenic gene mutationin in COL4A3 and COL4A4 genes of a family with thin-basement-membrane nephropathy (TBMN), and explain its mechanism.Methods Genomic DNA was extracted from blood samples.Mutation screening for all the exons in COL4A3 and COL4A4 of the proband was carried out by direct PCR sequencing.The sequences of the proband were compared with standard sequences in GenBank.After identifying the mutation in COL4A4, screening for the mutation site in 200 healthy controls and the rest of family members were conducted.RNA sequence of the proband was analyzed by reverse transcription PCR and TA cloning.The positive clones were sequenced for RNA screening.Results There was a G to A mutation in the 1459 site of COL4A4 (c.1459+G > A) in the proband, her mother, and the elder sister, whereas the mutation was not found in other family members and healthy people.RNA screening showed that the COL4A4 (c.1459+G > A) mutation was a heterozygous substitution in position + 1 of exon 21, in the splicing region.This mutation leaded to eliminating of exon 21 from the COL4A4 mRNA, causing the exon 21 deletion and frameshift mutation following the exon 20 in its amino acids sequence.Conclusions It is described that COL4A4 (c.1459+G > A) is a new pathogenic mutation in TBMN, which further help understanding the pathogenesis and clinical diagnosis of TBMN.
3.Tirofiban in percutaneous coronary intervention of patients with acute non-ST segment elevation myocardial infarct:safety and efficacy
Nan LI ; Xiao-Lin ZU ; Hong-Bing YAN ;
Academic Journal of Second Military Medical University 1985;0(05):-
Objective:To evaluate the efficacy and safety of tirofiban,a platelet glycoproteinⅡb/Ⅲa Inhibitor,in percutaneous coronary intervention(PCI)of patients with acute non-ST segment elevation myocardial infarct(NSTEMI).Methods:A total of 114 patients with acute NSTEMI were enrolled in the trial from Sep.2005 to Jan.2007;they were randomly divided into 2 groups:tirofiban group(n=57)and placebo group(n=57).Patients in tirofiban group were given tirofiban for 24 h after PCI.All patients were routinely given heparin,aspirin and clopidogrel before CPI.The composite occurrence of death,myocardial infarction(MI),need for target vessel revascularization(TVR)after PCI,and the adverse effects(hemorrhage and thrombocypenia)were compared between the 2 groups.Results:One(1.8%)patient had angina pectoris and the other(1.8%)developed subacute thrombus in control group within 24 h after PCl;there was no such event in the tirofiban group.Two(3.6%)patients developed angina pectoris and 2(3.6%) developed subacute thrombus within 30 days after PCI in control group;one patient(1.8%)in birofiban group developed angina pectoris and one patient in birofiban group developed subacute thrombus.Each group had one case(1.8%)of upper digestive tract bleeding during hospitalization.No intracranial hemorrhage,skin/ mucosa hemorrhage,thrombocytopenia,or-death occurred in the 2 groups.Intravenous tirofiban treatment reduced the composite occurrence of death of NSTEMI patients after PCI(P
4.Recent researching progress of Lepidium meyenii (Maca).
Yan-yan ZHOU ; Hai-yu ZHAO ; Nan SI ; Hong-jie WANG ; Bao-lin GIAN
China Journal of Chinese Materia Medica 2015;40(23):4521-4530
Maca as one of the star products in the international health care market in recent years, had a wide range of application value and promoted to all over the world. However, the basic research of Maca was not deep, lack of systematic and clear efficacy studies. Market products hype its aphrodisiac effect, which greatly impact more systematic in-depth research and exploration. Therefore, this paper briefly summarizes advance research in recent years including the status quo of the resources, growth cultivation, phytochemical, pharmacological effect and other aspects, which can provide reference for rational development and utilization of Maca.
Animals
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Biomedical Research
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Humans
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Lepidium
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chemistry
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classification
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growth & development
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Plant Extracts
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chemistry
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metabolism
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pharmacology
5.Practice and exploration of the cultivation system of hospital talents by levels and types
Yan HUANG ; Jing ZHANG ; Pengzhan ZHU ; Lin XU ; Tongtong LIU ; Nan CUI ; Jing LI ; Yan ZHANG
Chinese Journal of Hospital Administration 2021;37(1):6-9
Talents constitute core resource in the development of healthcare sector. Based on the situation of the talent team in the Affiliated Hospital of Qingdao University, the authors systematically constructed the hierarchical and classified system for talent cultivation, centering on three key areas of talent cultivation, evaluation and assessment. The authors analyzed the achievements since the implementation in 2016, namely the innovation of talent evaluation, the construction of discipline echelon, and the communication and inter-departmental cooperation. At the same time, the authors further put forward targeted suggestions to promote the development of talent teams in terms of transforming the human resource management model, increasing policy support and funding, implementing refined management, and improving talent evaluation indicators by the levels and types.
6.Investigation on the relationship between multidrug resistance and expression of glucosylceramide synthase in human breast carcinoma cells.
Yan-Lin SUN ; Geng-Yin ZHOU ; Kai-Nan LI ; Cheng-Hao GUO ; Peng GAO ; Xiao-Yan LIN
Chinese Journal of Pathology 2005;34(2):109-110
Antibiotics, Antineoplastic
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pharmacology
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Breast Neoplasms
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enzymology
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pathology
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Cell Line, Tumor
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Doxorubicin
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pharmacology
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Drug Resistance, Multiple
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drug effects
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Drug Resistance, Neoplasm
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drug effects
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Female
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Glucosyltransferases
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biosynthesis
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genetics
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Humans
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Oligodeoxyribonucleotides, Antisense
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genetics
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RNA, Messenger
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biosynthesis
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genetics
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Transfection
7.Effect of hyperacute intensive antihypertensive treatment on the prognosis of intracerebral hemorrhage in basal ganglia region
Yan GUO ; Haiyang WANG ; Cuihong ZHANG ; Ya′nan LIN ; Yu WANG ; Xiaopei SUN ;
Chinese Journal of Cerebrovascular Diseases 2016;13(10):516-521
Objective To investigate the effect of hyperacute intensive antihypertensive treatment on the prognosis of intracerebral hemorrhage in basal ganglia region. Methods From January 2013 to December 2015,100 patients with intracerebral hematoma in basal ganglia region (onset ≤3 h)at the Neurological Intensive Care Unit,the First Affiliated Hospital of Dalian Medical University were enrolled prospectively. They all randomly received the intensive antihypertensive or standard antihypertensive treatment voluntarily. They were divided into either an intensive antihypertensive group or a standard antihypertensive group according to the random number table (n = 50 in each group). Within 1 h after beginning to treatment,the target systolic blood pressure was controlled in 130 -140 mmHg in the intensive antihypertensive group,the target systolic blood pressure was controlled in 160 -180 mmHg in the standard antihypertensive group,and the target systolic blood pressure was maintained respectively in the following 7 d. Head CT was performed gain at 24 h after treatment. The intracranial hematoma expansion was evaluated. The National Institutes of Health Stroke Scale (NIHSS)and the modified Rankin scale (mRS)were used to
evaluate their prognoses. The differences of the cumulative mortality in both groups were compared at the same time. Results The incidences of hematoma expansion of the intensive antihypertensive group and the standard antihypertensive group were 12. 0% (6/ 50)and 30. 0% (15/ 50)respectively. There was significant difference between the 2 groups (χ2 = 4. 882,P = 0. 027). There were no significant differences in NIHSS scores within or between both groups at each time points (all P > 0. 05). They were followed up for 90 d,no adverse events occurred in both groups. The favorable prognosis rates of the neurological function were 36. 0% (18 / 50)and 18. 0% (9 / 50)respectively in the intensive antihypertensive group and the standard antihypertensive group. There was significant difference between the 2 groups (χ2 = 0. 411,P =0. 043). Kaplan-Meier curves showed that the cumulative mortality at 24 h,within 7 d and 90 d in the intensive antihypertensive group and the standard antihypertensive group were 4. 0% (2 / 50),6. 0%(3 / 50),and 10. 0% (5 / 50),respectively,those of the standard antihypertensive group were 10. 0%(5 / 50),24. 0%(12 / 50),and 30. 0%(15 / 50),respectively. The results of Log-rank test found that there was significant difference in cumulative mortality between the 2 groups (χ2 =6.280,P =0.012). Conclusions The intensive antihypertensive treatment in the hyperacute cerebral hemorrhage is safe and feasible in basal ganglia region. It contributes to improve prognosis of neurological function,and reduce the incidence of hematoma expansion and the 90 d cumulative mortality.
8.Inhibitory effect of RGDRGD-endostatin on the expression of vascular endothelial growth factor and its receptor in corneal neovascularization
Hong-yan, GE ; Nan, XIAO ; Pei, TIAN ; Lin, WANG ; Xin, LUO ; Ping, LIU
Chinese Journal of Experimental Ophthalmology 2012;30(1):20-24
BackgroundEndostatin (ES) is currently the strongest endogenous angiognesis inhibitor,and it can inhibit the occurrence of neovascularization.Various studies demonstrated that the poly RGD sequence can enhance the function of the ES gene.ObjectiveThis study was to evaluate the use of gene therapy of modified ES for alkaline burn-induced corneal neovascularization (CNV).MethodsOne hundred and two clean SD rats were randomly divided into the normal control group,the pCI empty vector group,the pCI-ES group,and the pCI-RGDRGDES group.Corneal neovascularization models were established by placing a piece of 3 mm filter paper with 1 mol/L NaOH at the central cornea for 40 seconds.3 μg of the pCI blank vector,ES-tranfected pCI blank vector,or RGDRGD-ES-transfected pCI vector was injected into the superior bulbar conjunctiva after the alkali burn twice at 1-week intervals.Area of CNV and edema of the cornea in the various groups of rats were examined daily under the slit lamp biomicroscope.1,4,7 and 14 days after operation,the rats were sacrificed by the excessive anesthesia method and corneal tissues were obtained to evaluate pathological changes.The expression of CD34 in vascular endothelial cells was detected by immunochemistry to calculate the corneal neovascular density.The expressions of VEGF mRNA and Flk-1 protein in the corneas were detected by reverse transcription polymerase chain reaction (RT-PCR) and Western blot analysis.The use and maintenance of animals followed the Statement of ARVO.Results Seven to fourteen days after corneal alkali-burning,the corneal neovascular area was smaller in the pCI-ES group and pCI-RGDRGD-ES group compared with the normal control group and pCI blank vector group (P<0.05,P<0.01 ),and nevascular area in the pCI-RGDRGD-ES group was smaller than that in the pCI-ES group (P<0.05).The expression level of CD34 was significantly lower in the pCI-ES group and pCI-RGDRGD-ES group than that in the normal control group and pCI blank vector group (P<0.05,P<0.01 ),and the expression level of CD34 was further declined in the pCI-RGDRGD-ES group compared with the pCI-ES group (P<0.05 ).Compared with the normal control group and pCI vector group,the expressions of the Flk-1 protein and VEGF mRNA were decreased in the pCI-ES group and pCI-RGDRGD-ES group on the fourth day after corneal alkali-burning (P<0.01,P<0.05 ),and those in the pCI-RGDRGD-ES group were less than the pCI-ES group (P< 0.05,P< 0.05 ).Conclusions Subconjunctival injection of both ES and modified RGDRGD-ES genes result in significant suppression of CNV in vivo,and modified RGDRGD-ES appears to be more effective than native ES.The main mechanism of ES in inhibiting neovascularization is to downregulate the expression of VEGF and Flk-1.
9.Measuring the volume of caudate nucleus in healthy Chinese adults of the Han nationality on the high-resolution MRI
Mingfei NI ; Nan CHEN ; Xing WANG ; Jianlin WU ; Kuncheng LI ; Xin ZHOU ; Yan ZHUO ; Lin CHEN
Chinese Journal of Radiology 2010;44(7):687-690
Objective To explore the normal range of the caudate nucleus' volume in Chinese adults of the Han nationality and provide morphological data for the construction of database for Chinese Standard Brain.Methods This was a clinical multi-center study.One thousand Chinese healthy volunteers (age range=18 to 70)recruited from 16 hospitals were divided into 5 groups,i.e.,Group A(age range=18 to 30),B(age range=31 to 40),C(age range=41 to 50),D(age range=51 to 60),and E(age range=61 to 70).Each group contained 100 males and 100 females.All of the volunteers were scanned by MR using T1 weighted three-dimensional magnetization prepared rapid acquisition gradient echo sequence.The volume of eaudate was measured manually using 3D volume analysis software.The difierence of volumes of the eaudate between male and female were analyzed by independent sample t-test,and among age groups by ANOVA.Pearson's correlation coefficient was used to characterize the relationship between volunles and age.The differences of measurements between left and right caudate nucleus were analyzed by paired t test.Results (1)rnle mean volume of bilateral caudate nucleus in healthy Chinese adults wag(10.973±1.647)cm3.The mean volume of the the male's left and right caudate nucleus were(5.656±0.860)and (5.671±0.855)cm3 respectively,no significant differences were found between the volume of left and right eaudate nucleus(t=1.230.P>0.05).The mean volume of the the female's left and right eaudate nucleus were(5.287±0.774)and(5.331±0.766)cm3 respectively,and the right's wag larger than the left's with significant differences(t=3.999,P<0.01);(2)Pearson correlation analysis showed a significant negative correlation between the nucleus volume and age(male and female's,left and fight)(r=-0.561,-0.568,-0.548,-0.552,P<0.05).Conclusion With high-resolution MRI and 3D volumetric analytic software(Midob),the volume of the caudate nucleus can be accurately measured,so as to provide the basic data for establishing Chinese adults' standard digital brain.and provide nomad control standards for caudate nucleus volume-related diseases.
10.Measuring the volume of cingulate cortex in Chinese normal adults of the Han nationality on the high-resolution MRI
Chao ZHANG ; Nan CHEN ; Xing WANG ; Kuncheng LI ; Xin ZHOU ; Yan ZHUO ; Lin CHEN
Chinese Journal of Radiology 2010;44(6):589-592
Objective To explore the normal range of cingulate cortex volumes of Chinese adults of the Han nationality and its relationship with age, which provide morphological data for the construction of database for Chinese Standard Brain.Methods This is a clinical multi-center study.One thousand Chinese healthy volunteers ( age range = 18 to 70) recruited from 15 hospitals were divided into 5 groups, i.e.,Group A (age range = 18 to 30), B (age range=31 to 40), C (age range =41 to 50), D (age range =51 to 60), and E (age range =61 to 70).Each group contained 100 males and 100 females.All of the volunteers were scanned by MR using T1 weighted three-dimensional magnetization prepared rapid acquisition gradient echo sequence.Cingulate cortex volume (including bulk volume and the left/right volume) was measured semi-manually using 3D volume analysis software.Cingulate cortex volumes among age groups were compared by one-way ANOVA.Right and left cingnlate cortex volumes between sexualities were analyzed by paired samples t test.The relationship between cingulate cortex volume and age was analyzed by Pearson correlations and regression analysis.Results Cingulate cortex volumes of male and female were (20 347 ± 2504) and ( 19 432 ± 2184) mm3 respectively, and the male's was significantly larger than that of female's (two sample t'-test for independent samples, t'= 6.156, P < 0.05 ).Right and left cingnlate cortex volumes of male were ( 10 717 ± 1629) and (9630 ± 1498) mm3 respectively, and those of female's were ( 10 064 ± 1407 ) and ( 9368 ± 1441 )mm3 respectively.The volumes of cingulate cortex were significantly different between right and left in male or female ( t = - 12.960, - 8.511, P < 0.05 ),and right was larger than left.Bilateral cingulate cortex volume in male among group A, B, C, D and E[left: ( 10 132 ± 1291 ), ( 10 113 ± 1638), (9599 ± 1576), (9594 ± 1288), (8710 ± 1212) mm3 ; right:(11 212±1442), (11 096±1602), (11 040±1403), (10 633±1638), (9604±1522) mm3] had statistical differences (F = 16.738, 18.707, P < 0.01 ) ; and those in female among five age groups[left:(9689 ± 1426), (9652 ± 1676), (9347 ± 1500), (9098 ± 1225), (9053 ± 1233) mm3 ; fight: ( 10 558 ±1325), ( 10 266 ± 1463), ( 10 100 ± 1497), (9779 ± 1304), (9617 ± 1254) mm3] also had significant differences (F = 16.859,7.528,P <0.01 ).Bilateral cingnlate cortex volume in both male and female were negatively correlated with age ( r = - 0.330, - 0.324, - 0.169, - 0.243, P < 0.05 ), though the correlation coefficient is not high.Conclusions Cingnlate cortex volume could be accurately measured on the high-resolution MRI with 3D volume analysis software, which can provide morphological data for the construction of database for Chinese Standard Brain.The results may provide normal range for the diagnosis of the volumetric deficits of cingulate cortex.