1.THE DISTRIBUTION OF ACTH_(1-39)-IMMUNOREACTIVE NEURONS IN HYPOTHALAMUS OF THE ADULT HUMAN
Zhenping GAO ; Guilin DAI ; Yuliang SONG ; Mingjian YAN ; Zhiyi WANG ;
Acta Anatomica Sinica 1989;0(S1):-
The distribution of the ACTH_(1-39)-immunoreactive neurons in the hypotha- lamus of 4 human adults was examined with ABC immunocytochemical method. The results showed that in addition to ACTH_(1-39)-immunoreactive neurons found in the infundibular nucleus of the hypothalamus which were identical with the previous reports, negafivt ACTH_(1-39)immunoreactive neurons were also found in paraventricular and supraoptic nuclei. These cell bodies were round or elliptic in shape. More negative ACTH_(1-39)immunoreactive fibers were seen in the periventricular layer, paraventricular nucleus and dorsal area of supraoptic nucleus.
2.Modern research on compatibility of Ginseng with Trogopterus Dung
Lianjun LI ; Mingjian GAO ; Ailing LIANG ; Shaohong CHEN ; Qian WANG ; Gansheng ZHONG
China Journal of Traditional Chinese Medicine and Pharmacy 2006;0(09):-
The‘eighteen clashes’and‘nineteen fears’have been tought of traditional prohibited combination in long time,but many examples show ginseng and trogopterus dung could be safely used after compatibility,so many scholars fouce on the essential of compatibility.While people can not reach an accordant consideration for compatibility of Ginseng with Trogopterus Dung,therefore we have a overview based on documents for about 30 years,which will provide evidences for researching systematically on the nature of compatibility of Ginseng with Trogopterus Dung.
3.Down regulation of miR-203 in radiation-induced thymic lymphoma promoted cells proliferation and inhibited apoptosis
Chaoxiong ZHANG ; Mingjian ZHANG ; Fu GAO ; Chuanfeng ZHOU ; Pei ZHANG ; Jianming CAI ; Cong LIU
Chinese Journal of Radiological Medicine and Protection 2015;35(1):28-34
Objective To investigate the role of miR-203 in radiation-induced thymic lymphoma (RITL).Methods A 60Co irradiator was used for total-body irradiation.MicroRNAs(miRNAs) level was assayed by qRT-PCR.Cell proliferation was assayed by MTT assay.Cell apoptosis was examined by fluorescence activated cell sorter (FACS).Dual luciferase reporter assay system was used to detect the 3'UTR reporter.Results MiR-203 was down-regulated in RITL tissues.Overexpression of miR-203 strongly inhibited the proliferation of both NIH3T3 cells and EL4 cells and vice versa.MiR-203 inhibited cells proliferation and induced apoptosis via TANK-binding kinase (TBK1),SLUG (SNAI2) and Cyclin D1 (CCND1).Conclusions Radiation down-regulated the level of miR-203 in thymic,which promoted radiation-induced thymic lymphoma by targeting TBK1,SNAI2 and CCND1.
4.Effects of different frequencies of pricking-bloodletting at auricular points plus auricular point sticking therapy on the serum levels of related factors in patients with acne vulgaris
Man ZHANG ; Mingjian ZHANG ; Yanfen SHE ; Yayu GAO ; Hao CHEN ; Jin LIU ; Xisheng FAN ; Jun LIU ; Juncha ZHANG
Journal of Acupuncture and Tuina Science 2023;21(1):74-81
Objective: To observe the effects of different frequencies of pricking-bloodletting at auricular points plus auricular point sticking therapy on the levels of the serum immunoglobulin G (IgG), immunoglobulin M (IgM), testosterone (T), and insulin-like growth factor-1 (IGF-1) in patients with acne vulgaris (AV). Methods: Ninety patients with AV were randomly assigned to treatment group 1, treatment group 2, and treatment group 3 according to the random number remainder grouping method, with 30 cases in each group. All three groups received pricking-bloodletting at auricular points plus auricular point sticking therapy. Treatment group 1 was treated once a week, treatment group 2 was treated twice a week, and treatment group 3 was treated 3 times a week. Four-week treatment was taken as 1 treatment course, and 3 treatment courses were observed. On the day before the start of the study and on the day next to the end of each course, the global acne grading system (GAGS) score was recorded, and 3 mL of blood from the median cubital vein was collected to test the serum levels of IgG, IgM, T, and IGF-1. After 3 courses of treatment, the efficacy index was calculated according to the GAGS score, and the serum indicators in patients with effective treatment (efficacy index ≥20%) and complete sampling were analyzed. Results: A total of 60 patients were included in the final blood indicator analysis. After 3 courses of treatment, the intra-group comparisons showed that the serum IgG level increased significantly in patients in treatment group 1 (P<0.01); the serum T level decreased significantly in the female patients in treatment group 2 (P<0.05); the IGF-1 level significantly decreased in the patients in all three groups (P<0.05 or P<0.01). There were no significant differences in the serum levels of IgG, IgM, T, and IGF-1 among the three groups at each time point (P>0.05). Conclusion: Pricking-bloodletting at auricular points plus auricular point sticking therapy can affect the levels of serum IgG, T, and IGF-1 in AV patients. The level of the serum IGF-1 can be reduced by treatment once a week, twice a week, or 3 times a week. Treatment once a week can increase the patients' serum IgG level, and treatment twice a week can significantly decrease the serum T level in female patients. Reducing the serum IGF-1 level may be one of the action mechanisms of pricking-bloodletting at auricular points plus auricular point sticking therapy in treating AV.
5.Value of combined detection of urine NGAL and KIM-1 in the early diagnosis of contrast-induced nephropathy
Jingquan FENG ; Mingjian BO ; Zhiyong GAO ; Mingying ZHAO
International Journal of Laboratory Medicine 2019;40(3):355-358
Objective To explore and analyze the effect and value of combined detection of urine neutrophil gelatin-associated apolipoprotein (NGAL) and kidney injury molecule 1 (KIM-1) in the early diagnosis of contrast-induced nephropathy.Methods The clinical data of 116 patients with coronary heart disease who received coronary intervention treatment in our hospital in 2017 were collected with forward-looking research methods.The patients were divided into the non-contrast-induced nephropathy group (control group, n=90) and the contrast-induced nephropathy group (observation group, n=26) according to the occurrence of contrast-induced nephropathy.The levels of serum creatinine, serum urea nitrogen, urine NGAL and KIM-1 were compared at different time points between the two groups.Results From 2 days after surgery, the serum creatinine levels were increased significantly (P<0.05).The serum creatinine levels at 2 days after surgery (102.43±20.31) μmol/L and 3 days after surgery (107.22±25.13) μmol/L in the observation group were significantly higher than those in the control group[ (92.89±16.74) μmol/L, (91.97±15.38) μmol/L];The serum urea nitrogen levels in the observation group were increased significantly from 12 hafter surgery (P<0.05);the serum urea nitrogen levels of the observation group at 12 h, 1 d, 2 dand 3 dafter surgery were significantly higher than those of the control group (P<0.05);The urine NGAL levels at 4 and 12 hour and 1 and 2 days after surgery in the observation group were significantly higher than those in the control group;The KIM-1 levels at 1 day after surgery (5.14±0.96) μg/L and 2 days after surgery (5.58±1.33) μg/L in the observation group were significantly higher than those in the control group [ (3.58±1.23) μg/L, (3.64±1.15) μg/L], and the differences were statistically significant (P<0.05).Pearson correlation analysis showed that there was a positive correlation between urinary NGAL at 4 hours postoperatively and serum creatinine at2 days postoperatively (r=0.784, P=0.000), and positively correlated with serum urea nitrogen level at 1 day postoperatively (r=0.811, P=0.000).The KIM-1 level at 1 day postoperatively was positively correlated with the serum creatinine level at 2 days postoperatively (r=0.596, P=0.000), and positively correlated with the serum urea nitrogen level at 2 days postoperatively (r=0.644, P=0.000).ROC curve analysis showed that the area under curve (AUC) of urine NGAL was 0.917[95%confidence interval (CI) :0.884-0.951], the sensitivity was 86.74%, and the specificity was 93.92%;AUC of KIM-1 was 0.842 (95%CI:0.755-0.901), the sensitivity was 81.16%, and the specificity was 83.47%.Conclusion Urine NGAL and KIM-1 are biochemical markers that can early react to the impairment of renal function, and have positive value in the early diagnosis of contrast-induced nephropathy.
6.Application analysis of coronary angiography combined with FFR in percutaneous coronary intervention treatment of coronary artery disease
Fengbo REN ; Junming LIU ; Yan LIANG ; Wenjun HUANG ; Wei XIE ; Xia GAO ; Ke LI ; Mingjian WANG ; Liang ZHAO
Chongqing Medicine 2014;(12):1439-1441,1444
Objective To explore the clinical application value of coronary angiography (CAG) combined with fractional flow re-serve(FFR) in percutaneous coronary intervention treatment of coronary artery disease (CAD) .Methods 82 cases of CAD(147 le-sions) with single hemadostenosis at least 70% -90% were randomized into the observation group and the control group .The ob-servation group(40 cases ,72 lesions) was performed the myocardial FFR detection by the pressure guide wire and the drug-eluting stents(DES) were placed in the lesions only if FFR ≤0 .80 .The patients with postoperative FFR ≤0 .80 were given the in-stent post-balloon dilatation .The control group(42 cases ,75 lesions) underwent the percutaneous coronary intervention(PCI) for conduc-ting the routine DES implantation .The general condition ,risk factors(hypertension ,diabetese ,hyperlipidemia ,smoking ,etc .) ,num-ber of lesions ,implanted stents ,hospitalization cost ,occurrence rate of major adverse cardiac events (MACE) after postoperative 6 months and the angina recurrence rate were compared between the two groups .Results The number of used stents per patient and the hospitalization cost in the observation group were significantly lower than those in the control group [(0 .88 ± 0 .88) vs .(1 .81 ± 0 .83) ,(47 200 ± 2 3000)Yuan vs .(60 000 ± 2 4100)Yuan P< 0 .05] .The two groups had no all-cause death in postoperative 6-months .The recurrent myocardial infarction rate ,revascularization rate and recurrent angina in the two groups were 2 .50% vs .0 , 2 .50% vs .2 .38% and 5 .00% vs .7 .14% respectively ,the differences had no statistical significance(P>0 .05) .Conclusion CAG combined with FFR detection can significantly reduce the number of stents and the hospitalization cost without increasing the occur-rence rates of MACE and angina within postoperative 6 months in CAD patients .
7.Determination of chloropicrin in air of workplace by gas chromatography with absorption solution collection.
Qitao TAN ; Huaisheng BAI ; Mingjian GAO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2014;32(8):625-627
OBJECTIVETo establish a method for determination of chloropicrin in the air of workplace by gas chromatography with liquid absorption collection.
METHODSChloropicrin in sample air was collected by absolute ethyl alcohol in a porous glass plate absorption tube. Following direct sample loading, samples were separated by gas chromatography and detected with a micro-electron capture detector. The present method was compared with the national standard method.
RESULTSThe range of linearity was 0-3.0 µg/ml, and the regression equation was y = 3488.80x-57.84, with a correlation coefficient of 0.999 4. The detection limit was 0.003 µg/ml, with a minimum detectable concentration of 0.005 mg/m³ based on a 3.0 L sampling volume. The average recovery rate was 98.9%∼103.2%. The within-run precision was 0.96%-2.12%, and the between-run precision was 2.75%-4.59%. The sampling efficiency was 98.6%. Samples in porous glass plate absorption tube could be stored at 4 °C for at least 5 days. The result ratio of this method to the national standard method was 97.7%-108.0% .
CONCLUSIONThe present method meets the requirements of "Guide for establishing occupational health standards-Part 4: Determination methods of air chemicals in workplace" (GBZ/T 210.4-2008), and is feasible for determination of chloropicrin in the air of workplace.
Air ; analysis ; Air Pollutants, Occupational ; analysis ; Chromatography, Gas ; methods ; Hydrocarbons, Chlorinated ; analysis ; Workplace
8.Evaluation of colloidal gold method for detection of HIV-1 antibody in the urine
Zhen NI ; Xiaoyuan HU ; Changyu ZENG ; Xuan GAO ; Mingjian NI
Shanghai Journal of Preventive Medicine 2023;35(9):899-904
ObjectiveTo verify and promote the HIV antibody urine test in a demonstration zone for HIV prevention and control in Xinjiang, and to assess the sensitivity and specificity of the test and the willingness of the volunteers, providing a basis for evaluating and determining whether it was suitable for large-scale use in the region. MethodsStratified cluster sampling was used to select the respondents in a place in Xinjiang for questionnaire survey and sample collecting. Questionnaire results were statistically described, and multivariate logistic regression analysis was used to explore the influencing factors of willingness to use HIV-1 urine test. The results of blood ELISA antibody detection method were used as a reference to calculate the specificity, sensitivity and Kappa value of urinary HIV-1 antibody in the total population and different populations. ResultsA total of 2 504 volunteers were recruited for the urine self-testing. The sensitivity of HIV-1 antibody urine test in the total population was 94.73% (54/57), the specificity was 100% (2 447), the positive predictive value was 100% (54/54), and the negative predictive value was 99.88% (2 447/2 450). The specificity of each population group was 100% when comparing different populations. The test sensitivity was 100% in pregnant women, prostitutes and drug users, 50% (1/2) in MSM subjects, with a Kappa value of 0.796. The test sensitivity was 80% (8/10) in the volunteers, with a Kappa value of 0.878. In the satisfaction survey, 73.1% population was more likely to receive urinary rapid test than the blood fast test, 93.8% of the population was willing to recommend the rapid urinary detection to other people. More than 70% of the population was satisfied with the rapid urinary detection. The multivariate logistic regression analysis showed that age, degree of education, occupation, marital status, payment method of medical expenses, and income level were the influence factors of the purchase of urine fast reagent for the self-testing (P<0.05). ConclusionUrinary HIV-1 antibody detection method has good reliability and public satisfaction. It is suitable for large-scale use in Xinjiang.