2.Studies and prospects of the candidate virulence gene of familial medullary thyroid carcinoma
Ming GAO ; Yang YU ; Yongsheng JIA
Chinese Journal of Clinical Oncology 2014;(3):204-206
Familial non-medullary thyroid carcinoma (FNMTC) is de fi ned as the presence of two or more affected fi rst-degree relatives with non-medullary thyroid cancers without other known familial syndromes. FNMTC is one of the most inheritable forms of all cancers, with a high risk of a first-degree relative developing the disease. Compared with sporadic non-medullary thyroid carcinoma (NMTC), FNMTC presents at a younger age and is associated with a higher incidence of multifocal disease and metastasis. This in-creased aggressiveness has been hypothesized to translate into higher recurrence rates and decreased survival of patients with FNMTC. The genes involved in the pathogenesis of FNMTC are yet to be elucidated, although some recent studies identified several predisposi-tion loci with a high degree of genetic heterogeneity. Since 2005, next-generation sequencing (NGS) technologies have been developing as rapid, high-throughput, and cost-effective approaches to fulfill medical sciences and research demands. With the use of NGS, the un-derlying causative genes can be directly distinguished via systematic filtering, through which the identified gene variants are verified for novelty and functionality.
3.The effects of hyperbaric oxygen in reducing brain damage from hypoxic ischemia in neonatal rats
Xiao-He YU ; Yu-Jia YANG ; Le ZHONG ; Xia WANG ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(09):-
Objective To investigate the protective effects of hyperbaric oxygen(HBO)against brain dam- age from hypoxic ischemia(HIBD)in neonatal rats.Methods One hundred and seventeen 7-day-old Sprague- Dawley rats were randomly divided into 4 groups:a control group(n=32),a hypoxic ischemia brain damage group (HIBD group,n=30),a hyperbaric air group(HBA group,n=27),and a hyperbaric oxygen group(HBO group, n=28).The HIBD model was established by permanent occlusion of the left common carotid artery followed by expo- sure to a mixture of 8% oxygen/92% nitrogen for 2 h(at 37℃).HBO therapy was administered to the HBO group after the hypoxia exposure once a day for 7 d,as was HBA therapy to the HBA group.Apoptotic cells in the cortex and hippocampus(A_(CH)cells)were measured using TUNEL at 9 d after birth,and the ratios of left and right cerebral hemisphere weight(R_(L/R))and rate of weight gain(GRW)were recorded 14 d after birth.A radial arm maze acquisi- tion test(RAMAT)was administered at 30 to 35 days.Lastly,the neuron density in the CA_1 subfield of the rats' hip- pocampi(ND_(CAI)was measured with Nissl staining.Results R_(L/R)and GRW in the HIBD group were significantly lower than in the control group(P<0.01),while R_(L/R)was increased in the HBO and HBA groups,especially in the HBO group(P<0.01),although there was no significant difference in GRW between the groups.Compared with the control group,A_(CH)cells were increased and ND_(CAI)was decreased in the HIBD group(P<0.01),while A_(CH)cells were decreased and ND_(CAI)was elevated in the HBO group in comparison with the HIBD group(P<0.01).There was no change in A_(CH)cells or ND_(CAI)in the HBA group.The RAMAT results for the HIBD group,including the time to find the arms baited with water,average times of working errors and reference memory errors,were significantly high- er than those of the control group,while these values for the HBO group were obviously lower than for the HIBD group,and there was no change for the HBA group(P>0.05).Conclusion HBO therapy might increase the re- covery of learning and memory function by attenuating HIBD in neonatal rats.
4.Lignan constituents and activities of Linum usitatissimum L. above ground
Xiang CHEN ; Jingming JIA ; Yu YANG ; Nengjiang YU
Journal of International Pharmaceutical Research 2017;44(6):590-594
Objective To investigate the chemical constituents and activities of Linum usitatissimum L.aboveground. Meth-ods The chemical constituents were separated through silica gel,ODS,Sephadex LH-20,and semi-preparative RP-HPLC chroma-tography and identified by optical rotation and spectroscopic analysis. All of the isolates were evaluated for their inhibitory activities by the luciferase assay. Results Eight dibenzylbutyrolactone lignans were separated from L. usitatissimum and identified as(-)-hinoki-nin(1),(-)-bursehernin(2),(-)-dimethylmatairesinol(3),(-)-yatein(4),(-)-thujaplicatin trimethyl ether(5),nemerosin (6),(+)-E-7,8-dehydromatairesinol dimethyl ether(7),and E-7,8-dehydrothujaplicatin trimethyl ether(8),respectively. Conclu-sion Compounds 7 and 8 were isolated from L. usitatissimum for the first time,and NMR spectral data of compound 8 were reported for the first time. Compounds 1 and 3 showed moderate inhibitory activities on IL-6/STAT3 signaling pathway with IC50 values of 42.12 and 43.43μmol/L,respectively.
5.Study on the acute toxicity of Tripterygium Hypoglaucum (Levl) Hutch solution in mice
Lujun YANG ; Houyong YU ; Ping HUANG ; Jian YUAN ; Jia CAO ;
Journal of Third Military Medical University 2003;0(17):-
Objective To explore the acute toxicity and LD 50 of Tripterygium Hypoglaucum (Levl) Hutch(THH) solution to provide information for safe clinical application. Methods After oral administration of THH solution in mice, the mortality and the physiological and pathological changes were observed. Results The LD 50 (95% confidence limit) of THH in male and female mice was 79 g/kg(69~89 g/kg) and 100 g/kg (90~112 g/kg), respectively. No marked pathological change of the organs was found. Conclusion According to the standard of grading of acute toxicity, THH solution belongs to the moderate class. Therefore, it is safe in clinical practice and has a wide application.
6.Effects of capsaicin on lipid metabolism of liver cells in vitro
Yu SUN ; Jia LIU ; Bo NING ; Zhaoxia YANG
Chongqing Medicine 2017;46(11):1450-1453
Objective To observe the effect of capsaicin on lipid deposition in liver cells and the expression of autophagy,to provide new ideas and targets for the study of fatty liver disease.Methods The model of nonalcoholic fatty liver disease (NAFLD) was established by inducing LGF cell line of liver primary cells with oleic acid (40 μg/mL).The experiment was divided into blank control group,oleic acid group,capsaicin group[oleic acid--capsaicin(100 μmol/L)].The level of intracellular lipid was detected by oil red O staining and triglyceride (TG) kit.Western bolt was used to detect the expression level of autophagy marker molecule p62 and LC3,and to calculate the ratio of LC3 Ⅱ/LC3-Ⅰ.Results After treated with 40 μg/mL oleic acid for 24 h,the oil red O staining showed that orange-red lipid droplets were found in the oleic acid group,but there was no obvious orange-red lipid droplet formation in the blank group,which suggesting that the NAFLD cell model was established successfully by using 40 μg/mL oleic acid in vitro.Oil red O staining was observed,the cells in the capsaicin group were significantly less than the oleic acid group,and the content of triglyceride in the liver cells was significantly lower than that in the oleic acid group(P<0.05).Western bolt test results showed that capsaicin group p62 protein levels were significantly lower compared with the oleic acid group(P<0.05),while the LC3-Ⅱ/LC3-Ⅰ ratio was higher than that of oleic acid group(P<0.05).Conclusion NAFLD model was established by inactivating LO2 cell line with oleic acid in vitro.Capsaicin stimulated NAFLD cells,upregulated the autophagy level of NAFLD cells and reduced intracellular lipid deposition,but the specific mechanism need further study.
7.Study on the relationship of post- traumatic growth with self- care efficacy and psychological resilience in patients with breast cancer
Xiaoqin JIA ; Lingling CHENG ; Fang YANG ; Yuqian SUN ; Yu LIU
Chinese Journal of Practical Nursing 2015;(36):2742-2745
Objective To explore the relationships of post- traumatic growth with self- care efficacy and psychological resilience in patients with breast cancer. Methods Totally 303 patients with breast cancer were investigated with Post- traumatic Growth Inventory (PTGI), Chinese version of Strategies Used by People to Promote Health (C- SUPPH) and Connor- Davidson Resilience Scale (CD- RISC). Results The total score of PTGI was 63.74±13.00 and the status of post- traumatic growth in breast cancer patients was in middle level, with a highest interpersonal score of 24.49±5.05, a lowest mental change score of 3.84± 1.91. Correlation analysis showed that post- traumatic growth was positively correlated with the level of self- care efficacy and psychological resilience (P<0.01 or 0.05). Regression analysis showed that self- care efficacy and psychological resilience in breast cancer patients could effectively predict the post- traumatic growth with an explanation rate of 36.1%. Conclusions Self- care efficacy and psychological resilience in patients with breast cancer are closely correlated with post- traumatic growth. It is suggested to take appropriate measures to promote post-traumatic growth of the breast cancer patients.
8.Isolation and activity of an α-amylase inhibitor from white kidney beans
Xiaoqi ZHANG ; Mingyan YANG ; Yu MA ; Jia TIAN ; Jirong SONG
Acta Pharmaceutica Sinica 2007;42(12):1282-1287
An α-amylase inhibitor (α-AI) was isolated from white kidney beans (Phaseolus vulgaris. L) by ethanol fractional precipitation, ion exchange chromatography and gel filtration column chromatography. It was a homogeneity glycoprotein demonstrated by SDS-PAGE and gel filtration on CL-6B. The glycoprotein contained 88.2% protein and was rich in aspartic acid, glutamic acid, leucine, threonine and serine. The carbohydrate moiety was consisted of Man, Glc, Gal and Xyl in a mole ratio of 2.42∶1.50∶1.52∶1.00. The glycan and the core protein backbone was connected by O-linkage as determined by β-elimination reaction. The continuous oral administration of the α-AI (150 mg·kg-1·d-1 ) for 7 days can lower fasting blood glucose and 300 mg·kg-1 ·d-1 α-AI for 7 days can improve the sugar tolerance on alloxan-dependent diabetic model rats. The result showed the α-AI obtained from white kidney beans had good hypoglycemic effect on alloxan induced diabetic rats and may have high potential pharmaceutical value as a regulative digestive-starch degradation in patients suffering from diabetes.
9.Pain in human skin caused by laser stimulation
Yu-Chang, LI ; Jia-Rui, WANG ; Zai-Fu, YANG
Bulletin of The Academy of Military Medical Sciences 2009;33(6):590-592
Laser techniques are widely applied in medical research and military affairs. The characters of laser make it the best way to evoke pain.Pain induced by laser stimuli is influenced by laser parameters such as wavelength, pulse duration and stimulus area in addition to the properties of skin such as the distance from the brain, type and color of skin. In this review,both laser evoked pain and factors influencing it are discussed.
10.Epidemiological survey of brucellosis in Zibo City Shandong Province from 1954 to 2011
Jia-yu, ZHENG ; Ling, WANG ; Shu-xia, YANG
Chinese Journal of Endemiology 2013;32(5):516-519
Objective To explore epidemic characteristics and trend of livestock brucellosis in Zibo,and to provide a scientific basis for development of prevention strategies to brucellosis.Methods Epidemiology statistical analysis and forecast was made based on related information such as the active immunization data of human brucellosis,the infection data between people and livestock,and the active immunization data among livestock over the years since 1954.Results From 1954 to 2011,37 years had brucellosis cases reported in Zibo City,with accumulative reports of 380 cases,and the average incidence rate was 0.2512/100 000,distributed in 118 villages 56 counties 3 towns 5 districts of the whole city.From 1954 to 1988,only 14 years had brucellosis cases reported,with accumulative reports of 94 cases,and the average incidence rate was 0.1573/100 000.From 1989 to 2011,each year had brucellosis cases reported,with accumulative reports of 283 cases,and the average incidence rate was 0.3158/100 000,of which the highest incidence was in 2011 (45 cases).From 1958 to 2011,there were a total of 140 154 livestock went through serology monitoring,1162 positives,and the positive rate was 0.83%,while the total immunization number of sheep was 884 900,of which 28 years did not carry out immunization work.Conclusions The incidence rate has decreased year by year since the seventies of last century.But the epidemic is on the rise since 1989,while new epidemic areas are emerging and the history affected areas are still serious,therefore the brucellosis prevention and control situation is still grim.