1.Research advances on the ratio ofmonocyte to HDL in the diagnosis and prognosis of coronary heart disease
Chaofa HUANG ; Yichun WEI ; Juxiang LI
Basic & Clinical Medicine 2017;37(4):557-560
Atherosclerosis is the main cause of coronary heart disease, Now it is thought that atherosclerosis is a chronic inflammatory disease.The ratio of Monocytes to high-density lipoprotein (MHR) is a new inflammatory marker of coronary atherosclerosis, which is measured simply and cheaply.MHR is associated with short-term and long-term incidence of cardiovascular events and morbidity of Coronary heart disease, which can be used as predictor of coronary heart disease prognosis.
2.Capillary electrophoresis analysis on the brucine ingredient in the biospecimens from the poisoning victim
Yanxu LU ; Shuanglong SUN ; Yichun LI
Chinese Journal of Forensic Medicine 1988;0(04):-
To assay the quantity of the brucine ingredient in gastric content and hepatic tissues from the patient died of Semen Strychni hainanensi accumulative posioning.With standard brucine and the crude powder of the Semen Strychni hainanensi as control,the brucine ingredients in the above tissues were quantitatively scanned by the capillary elecrophoretic apparatus within the wave length ranging 190~600nm.The contents of the brucine ingredients in the gastric,hepatic tissues and the crude powder of the Semen Strychni sainanensi were 5 83mg/100ml,4 92mg/100g,and 3 07%(w/w)respectively.The high level of the brucine ingredients in the gastric content and the hepatic tissue is the cause of death.
3.Establishment of the DOCA-Salt hypertensive rat model
Shunna GE ; Wenwen LI ; Yichun ZHU
Chinese Pharmacological Bulletin 1986;0(06):-
Aim To establish a reliable and practical rat model with hypertension induced by DOCA-Salt.Methods One week after nephrectomy,the rats were subcutaneously injected with DOCA (30 mg?kg-1) once a week and fed with a chaw with 10 g?L-1NaCl plus 2 g?L-1 KCl in drinking water for 4 weeks. Blood pressure was measured and,urine was collected for measurement of volume(UV),UNaV,UClV,UKV,UCaV and pH values,once a week. SGPT,CREA,SUGA,TRIG,CHOL,INS,ALD,ADH were measured in circulating blood samples. Kidney morphological changes and Na+,K+-ATPase activity of the renal tubular epithelial cells were also examined. Results Blood pressure,UV,UNaV and UClV were increased and histopathological changes of the kidney such as glomerulus sclerosis and tubular pachynsis were observed in the DOCA-Salt rats. Whereas UKV,UCaV,urine pH values,SGPT,CREA,SUGA,TRIG,CHOL,INS,ALD and ADH were not changed. In contrast,Na+,K+-ATPase activity of the renal tubular epithelial cells was decreased. Conclusion DOCA-Salt is a reliable hypertensive model with sodium retention.
4.Dietary Exposure Assessment of Dioxin in Australia and Research Prospect in China
Tianjin CHEN ; Yun LI ; Yichun HU
Journal of Environment and Health 2007;0(12):-
As a first-grade carcinogen,the dioxin had caused huge food safety and political crisis as well as economic losses, and posed unacceptable health risk to consumers in some European countries.The international community has commonly shown great concerns for the issue.Three specific researches on the dietary exposure risk of Australian consumers posed by dioxin have been undertaken in Australia since 2001.Reliable results of the research have been obtained.This paper outlined origin, development and the status of the Australian dioxin dietary exposure assessment.Prospecting for developing the dioxin dietary exposure assessment in China has been put forward based on the discussion of the Australian experience.
5.Effect of Anti-virus Capsule on Quality of Life of Patients with Recurrent Genital Herpes
Yichun ZHENG ; Guowei XUAN ; Hongyi LI
Journal of Guangzhou University of Traditional Chinese Medicine 2004;0(06):-
【Objective】To investigate the effect of Anti-virus Capsule(AVC) on quality of life(QOL) of patients with recurrent genital herpes(RGH).【Methods】The universal QOL measurement scale of WHOQOL-BREF was used to evaluate the QOL status of 40 RGH patients before and after treatment.The recurrence rate and skin lesion healing time were also observed before and after treatment.【Results】After treatment,QOL was much improved,mean recurrence rate was decreased and skin lesion healing time was shortened,the difference being significant(P
6.Content Analysis of 5 Kinds of Heavy Metal in Yougui Pills
Cunjin LI ; Ting XIE ; Yunfeng ZHOU ; Jiehua DENG ; Zhe WU ; Zhaoguang HUANG
China Pharmacy 2021;32(19):2377-2382
OBJECTIVE:To investigate the contents of 5 kinds of heavy metal as copper (Cu),arsenic(As),cadmium (Cd),mercury(Hg)and lead (Pb)in Yougui pills ,and to evaluate its safety risk. METHODS :Using yttrium (89Y),indium (115In)and bismuth (209bi)as internal standard ,the contents of each element were determined by ICP-MS. ICP-MS condition included that atomization gas flow rate was 0.95 L/min,auxiliary gas flow rate was 1.2 L/min,plasma gas (argon)flow rate was 18 L/min,pump speed was 30 r/min. RF power of inductively coupled plasma was 1 200 W,the voltage in simulation stage was 1 750 V,the voltage in pulse stage was 1 300 V,the voltage of deflection device was -12 V,and the detector was in analog and pulse dual-mode. The determination methods of various elements were investigated ,and 45 batches of marketed Yougui pills were determined. Hazard index (HI)was used to analyze the non-carcinogenic risk of each element and calculate the maximum residual limit(MRL)of each element. RESULTS :The linear range of Cu ,As,Cd,Hg and Pb ranged from 10-200,1-50,0.4-30,0.2-6 and 2-100 μg/L(all r>0.999 0),respectively. The limits of quantitation were 0.67,0.23,0.20,0.07,0.27 μg/L. The limits of detection were 0.20,0.07,0.06,0.02,0.08 μg/L. RSDs of precision,stability and reproducibility tests were all lower than 3.5% (n=6 or n=5). Average recoveries were 92.96%-100.89%(RSD=2.23%-3.62%,n=3). Average contents of Cu ,As,Cd,Hg and Pb in 45 batches of Yougui pills were 2.72,0.28,0.07,0.05,0.62 mg/kg,and superimposed HI of each element was less than 1. The contents of 5 kinds of heavy metals in Yougui pills were lower than the proposed MRL (MRL of Cu ,As,Cd,Hg and Pb were 20,2,1,0.2,5 mg/kg or 111.11,4.44,2.22,1.48,8.89 mg/kg respectively ). CONCLUSIONS :Established method can be used for the determination of content of 5 kinds of heavy metal in Yougui pills ;the heavy metal pollution rate of marketed Yougui pills is low and the safety risk is small.
7. Regulation Mechanisms of Sirt7 in Pathophysiological Activities
Yang-Yang LU ; Yan LI ; Cheng LUO
Chinese Journal of Biochemistry and Molecular Biology 2022;38(5):570-576
Silent mating type information regulator 2-related enzymes or sirtuin family proteins are nicotinamide adenine dinucleotide (NAD
8.Observation and nursing of airways in mechanically ventilated patients with ASOPP-induced respiratory failure
Cuiling LU ; Sheng TANG ; Jingtao LIU ; Yichun GONG ; Mei LI
Modern Clinical Nursing 2015;14(9):20-23
Objective To summarize the measures for nursing mechanical ventilated patients who suffered from respiratory failure caused by acute severe organophosphorus pesticide poisoning (ASOPP). Method Retrospectively, the nursing clinical data of 18 mechanically ventilated patients who suffered from ASOPP-induced respiratory failure in ICU from January 2013 to December 2014 were analyzed for summarizing the nursing measures concerning preventive extubation, airway humidification and sputum sucking, prevention of ventilator-associated pneumonia and final extubation. Result Sixteen ASOPP patients successfully recovered after hospital discharge and another two died from multiple organ function failure because of excessive pesticides. Conclusions Effective observation and nursing care of airways based on their characteristics in ASOPP patients including prevention of unexpected shedding , appropriate humidity of airways and prevention of infection of ventilator-associated pneumonia(VAP). All of these measures can reduce complications and contribute to the early recovery of patients.
9.The changes of haemodynamics and cerebral state index during double-lumen endobronchial intubation with glidescope ranger video laryngoscope and macintosh direct laryngoscope
Yichun WANG ; Mingde WANG ; Zurong LI ; Jianghong ZHAO
Journal of Chinese Physician 2010;12(11):1457-1461
Objective To observe the changes of haemodynamics and cerebral state index during double-lumen endobronchial intubation with glidescope ranger video laryngoscope (GSVL) and macintosh direct laryngoscope (MDLS). Methods Forty-eight ASA Ⅰ or Ⅱ patients aged 35 ~ 67 yrs were enrolled in this study, who were scheduled for elective pulmonary cancer or cancer of esophagus radical correction tients were random divided into 2 groups( n =24 each), GSVL group and MDLS group. After anesthesia was induced, all patients were given a score of Cormack grading under MDLS and GSVL, and then endobronchial intubation was performed. Noninvasive BP and HR were recorded before and after induction of anesthesia, during endobronchial intubation and after endobronchial intubation was completed for 1,2, 3, 4,5 min. The CSI was continuously monitored and recorded before and after induction of anesthesia, and after endobronchial intubation for 1 ~ 2 min and 3 ~ 5 min. Results Compared with MDLS group, the rate of Cormack grade 1 was significant higher in GSVL group (91% vs 58% ) ( P <0. 01 ). BP of two groups at T1 and T5 ~ T7 were significantly decreased compared to T0 values ( P <0. 01 ). Endobronchial intubation (T2 ~T4) caused significant increase in BP and HR compared to post-induction values(T1 ) ( P <0. 01).The highest values of HR after intubation exceeded even their baseline values before induction of anesthesia.The haemodynamic responses to endobronchial intubation in GSVL group at T2 ~ T4 were significantly different from those in MDLS group( P <0. 05). CSI of two groups at T1 was significantly decreased compared to To values( P <0. 01 ), CSI of two groups at T2 induced significant increase compared to T1 values, and the increase of CSI in MDLS group was stronger than that in GSVL group( P <0.01). Condusion The haemodynamic responses produced by orotracheal intubation using GSVL had more obvious advantages than MDLS, but GSVL seemed to provide a clear view of glottis and a little change CSI effect.
10.Prooxidant activities of different doses of naringenin and its regulatory effect on the growth of nasopharyn-geal carcinoma CNE2 cells
Hongyan LI ; Jian HUANG ; Bin LIANG ; Zhiting CHEN ; Yichun HUANG
Journal of Medical Postgraduates 2014;(4):361-367
Objective Naringenin has a vast prospect of application because of its important biological activities .This study aims to explore the influence of different concentrations of naringenin on the growth of nasopharyngeal carcinoma CNE 2 cells and its ac-tion mechanisms. Methods Using the MTT method, we measured the effects of naringenin on the growth of CNE 2 cells after treated at the concentrations of 0, 0.005, 0.01, 0.02, 0.04, 0.06, 0.08, 0.1, 0.2, 0.4, and 0.8 mg/mL for 24, 48, and 72 hours.At 48 hours, we observed changes in the cycle of the cells treated with naringenin at 0, 0.02 and 0.04 mg/mL by flow cytometry, in the ap-optosis of the cells by Hochest 33258 staining and flow cytometry , in the level of reactive oxygen species ( ROS) in the cells by DCFH-DA staining, and in the mRNA expressions of C-fos, Bax and Bcl-2 by qPCR. Results Compared with the control group , naringe-nin at 0.02 and 0.04 mg/mL induced a low-level rise of ROS in the CNE2 cells (MFI:5186 ±183.50 and 5508 ±155.37, P<0.05), up-regulated the expression of C-fos (P<0.05 or P<0.01), and promoted the proliferation of the cells .However, naringenin at relatively high concentrations of 0.2 and 0.4 mg/mL significantly elevated the level of ROS (MFI:10758 ±179.82 and 11241 ±1 114.45, P<0.01), up-regulated the expression of Bax (P<0.01), down-regulated that of Bcl-2 (P <0.01), induced the apoptosis (P<0.01 ) and suppressed the proliferation of CNE 2 cells. Conclusion Within a concentration range of 0.005-0.8 mg/mL, naringenin may have two-way effects on the growth of CNE2 cells, a carcinogenic effect at a relatively low dose and a good anticancer effect at a relatively high dose .