1.The changes of arterial partial pressure of oxygen and blood lactate level in patients with cardiopulmonary resuscitation and its clinical significance
Dong LIU ; Zhan WANG ; Dingwu LI ; Zhi ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2012;19(3):351-353
Objective To explore the relation between the level of oxygen pressure and lactate in arterial blood and prognosis of cardiopulmonary resuscitation (CPR).Methods 36 patients with sudden cardiac arrest received CPR were selected.Patients were divided into 3 groups.The 21 patients who 30 minutes of CPR didn't regain heart beats were group A,those 10 who kept blood circulation for over 2 hours but finally died were group B,and the remaining 5 who survived were group C.Control group was made up of 20 people with no disease.In CPR immediately (0h),1h,3h,6h,12h were measured in blood specimens from arterial partial pressure of oxygen and lactate levels were compared among groups of patients dynamic changes of the index.Results The 3 groups A,B,C significantly reduced blood oxygen pressure,blood lactate increased significantly the CPR in the early,and compared with the control group there was significant difference( P < 0.01 ).The group B CPR 3h,6h,and continue until no significant changes in 12h;The group C CPR 3h,6h began to increase blood oxygen pressure and blood lactate levels begin to decline,blood oxygen pressure increased significantly,lower blood lactate to a lower level after 12h.Taken with marked changes in B group,the difference was significant ( P < 0.05 ).Conclusion Arterial partial pressure of oxygen and blood lactate levels could be used as indicators of prognosis of patients with CPR.Sustained increase in arterial oxygen partial pressure showed a good prognosis,lactate levels continued to rise that a poor prognosis.
2.Association of APOA5 Polymorphisms with Plasma Lipid Levels and Severity of Coronary Stenosis in Patients with Coronary Heart Disease
Yanmei WANG ; Zhan Lü ; Zhi LUO ; Liuqin YU ; Jingxiao ZHANG ; Yang YANG ; Xiaoxiao OUYANG ; Yongyan SONG
Journal of Sun Yat-sen University(Medical Sciences) 2017;38(5):710-716
[Objective]To explore the possible effects of the apolipoprotein A5(APOA5)gene rs2075291 and rs3135507 poly-morphisms on plasma lipid levels and the severity of coronary stenosis in patients with coronary heart disease(CHD)in Chinese Han people.[Methods]Polymerase chain reaction-restriction fragment length polymorphism method(PCR-RFLP)was used to identify the genotypes of the rs2075291 or rs3135507 polymorphism for the 324 patients with CHD and the 152 CHD-free controls,and the lipid levels between the genotypes were compared. The severity of coronary stenosis was assessed by the Gensini scoring system ,and the associations of the rs2075291 and rs3135507 polymorphisms as well as other factors with the Gensini scores were analyzed by mul-tivariate linear regression.[Results]The CHD patients had higher prevalence of hypertension ,and higher levels of triglycerides (TG),total cholesterol(TC),apolipoprotein B100(APOB100),lipoprotein(a)[Lp(a)],TG/high-density lipoprotein cholesterol (HDL-C),TC/HDL-C,low-density lipoprotein cholesterol(LDL-C)/HDL-C and APOB100/apolipoprotein AI(APOAI),and low-er levels of HDL-C and APOAI than the controls(P < 0.05 for all). The rs2075291 or rs3135507 allele and genotype frequencies were similar between the CHD group and the control group. The subjects with the rs2075291 GT genotype had higher levels of TG and TG/HDL-C,and lower levels of HDL-C than the subjects with the GG genotype in controls(P < 0.05 for all). In CHD patients, those with the rs2075291 GT genotype had higher levels of TG/HDL-C and TC/HDL-C than the patients with the GG genotype(P<0.05 for both). Regarding the rs3135507 polymorphism,the A allele carriers had lower level of APOB100 than the patients with the GG genotype(P<0.05). No significant association between the rs2075291 or rs3135507 polymorphism and the Gensini scores were detected by multivariate linear regression(P > 0.05).[Conclusion]The APOA5 rs2075291 polymorphism had significant effects on plasma lipid levels,but no effects on the occurrence and development of CHD. Further multicenter case-control studies with large samples are needed to validate these findings.
4.A rapid Screening Procedure for Identification of Succinate Producing Anaerobic Strains
She CHEN ; Xiao-Bei ZHAN ; Yun CHEN ; Zhi-Yong ZHENG ; Li-Min ZHANG ;
Microbiology 1992;0(02):-
In order to obtain an efficient screening procedure for identification of succinate producing anaerobic strains,a semi-quantitative paper chromatography method was developed. Lactic acid and acetic acid were identified as the main byproducts in the process of succinate production by the high performance liquid chromatography (HPLC).Succinic acid was completely separated from the byproducts of lactic acid and acetic acid in the same broth developed by paper chromatography.The content of succinic acid was calculated by a semi-quantitative method.The results showed that paper chromatography was a simple and cost effective method that could be utilized to screen anaerobic strains producing succinic acid.
5.Research progress of natural products for the treatment of hyperuricemia and gout
Zhi-jiao ZHANG ; Rui-peng LIANG ; Tong ZHAO ; Shu-jing XU ; Xin-yong LIU ; Peng ZHAN
Acta Pharmaceutica Sinica 2022;57(6):1679-1688
Although current synthetic anti-gout drugs have significant therapeutic effects in reducing serum uric acid levels, they have serious side effects such as allergic reactions and liver and kidney damage. Natural products with a wide range of uric acid-lowering and high safety have played a critical role in anti-gout drug discovery and development. This paper reviews the natural products with uric acid-lowering or anti-gout pharmacological effects and the investigation on their mechanisms of action, to provide information for drug discovery and development.
6.Poststroke Depression between Men and Women 2 Weeks after Ischemic Stroke in China
Ning ZHANG ; Yu-zhi SHI ; An-xin WANG ; Zhan WANG ; Chun-xue WANG ; Yong-jun WANG
Chinese Journal of Rehabilitation Theory and Practice 2015;21(7):807-810
Objective To analyze the features of poststroke depression (PSD) between men and women after acute ischemic stroke in China. Methods A total of 1917 ischemic stroke patients were enrolled from the Prospective Cohort Study on Incidence and Outcome of Patients with Poststroke Depression in China. The incidence of PSD and the features were compared between male and female patients. The factors related with PSD of every gender were extracted with Logistic regression analysis. Results The incidence of PSD was higher in women than in men (32.9% vs. 26.6%, P<0.01). There was no difference in the stroke score between women and men (P>0.05). The score of Hamilton Depression Scale was higher in the women than in the men, and the features were similar. Logistic regression analysis indicated that the history of heart disease, history of mental disorders and stroke score related with PSD in women, while the age, history of mental disorders, smoking and stroke score in men. Conclusion The incidence and related factors of PSD 2 weeks after ischemic stroke are different between men and women.
7.Research progress of anti-gout small molecules targeting the NLRP3 inflammasome
Zhen-qian WANG ; Zhi-jiao ZHANG ; Xin-yong LIU ; Peng ZHAN
Acta Pharmaceutica Sinica 2024;58(3):543-553
Currently, clinically used drugs for the treatment of gout inflammation, such as colchicine, nonsteroidal anti-inflammatory drugs, and glucocorticoids, can only relieve the pain of joint inflammation and have severe hepatorenal toxicity and multiple organ adverse reactions. The NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome is a key complex that induces the onset of gout inflammation and has become a crucial target in the development of anti-gout drugs. This article reviews the research progress of anti-gout small molecules targeting the NLRP3 inflammasome and their bioactivity evaluation methods in the past five years, in order to provide information for the development of specific drugs for the treatment of gout inflammation.
8.Observation on the therapeutic effect of needling method for harmonizing spleen-stomach on diabetic gastroparesis.
Ping ZHANG ; Zhan-Fen LIU ; Chun-Mei WANG ; Shi-Zhuo YAO ; Zhi-Long ZHANG
Chinese Acupuncture & Moxibustion 2007;27(4):258-260
OBJECTIVETo compare the therapeutic effects of acupuncture and Motilium on diabetic gastroparesis (DGP).
METHODSSeventy-two cases of DGP were randomly divided into a treatment group and a control group. The treatment group were treated with needling method for harmonizing spleen-stomach as main, with Quchi (LI 11), Hegu (LI 4), Zhongwan (CV 12), Zusanli (ST 36), Fenglong (ST 40), Yinlingquan (SP 9), Sanyinjiao (SP 6), Xuehai (SP 10), Diji (SP 8), and others selected, twice each day, 10 days constituting one course, with an in terval of 2 days; the control group were treated with oral administration of Motilium 10 mg, 3 times each day, 30 min before meals.
RESULTSThe total effective rate of 91.7% in the treatment group was better than 77.8% in the control group (P < 0.05).
CONCLUSIONThe therapeutic effect of the needling method for harmonizing spleen-stomach on diabetic gastroparesis is better than that of Motilium.
Acupuncture Therapy ; methods ; Adult ; Diabetes Complications ; therapy ; Female ; Gastroparesis ; therapy ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Spleen ; physiopathology ; Stomach ; physiopathology
9.Synthesis and biodistribution of a bi-functional agent 99Tcm-Gd-DTPA-DG in tumor bearing nude mice
Wei, ZHANG ; Liang, CAI ; Yue, CHEN ; Zhan-wen, HUANG ; Zhi-ling, DING ; Feng, CAO ; Li, ZHANG ; Ling, HE
Chinese Journal of Nuclear Medicine 2011;31(2):117-120
Objective To evaluate the stability and biodistribution of a novel SPECT-MRI bi-functional agem 99Tcm-Gd-DTPA-DG in tumor-bearing nude mice. Methods DTPA-DG was synthesized and then conjugated with Gd2O3 to generate Gd-DTPA-DG. The tumor-bearing nude mice were scanned by MRI to evaluate the tumor targeting ability of Gd-DTPA-DG. The orthogonal experiment was applied to optimize pH value of reaction medium and reaction temperature. The radiolabeling efficiency was measured by thin layer chromatography. The distribution of 99Tcm-Gd-DTPA-DG in nude mice was evaluated by scintigrapy in vivo. The % ID/g was measured at different time after intravenous injection of 99Tcm-Gd-DTPA-DG. Results The tumor was significantly enhanced by Gd-DTPA-DG with MRI. The radiochemical purity of 99Tcm-Gd-DTPADG was about 98.5% and remained 96.2% at room temperature for 6 h. The tumor was well visualized by 99TcmGd-DTPA-DG SPECT at 2 h after injection. The tumor uptake was (1.48 ±0.12) %ID/g, and the rumor to muscle radioactivity ratio was 2.91. Conclusions MRI contrast of Gd-DTPA-DG may enhance tumor detection. 99Tcm-labeled Gd-DTPA-DG may be useful for tumor imaging and might have a potential role as a SPECT-MRI bi-functional agent.
10.Research progress and medicinal chemistry strategies of URAT1 inhibitors
Xiao-yu SHI ; Tong ZHAO ; Jian ZHANG ; Rui-peng LIANG ; Zhi-jiao ZHANG ; Xin-yong LIU ; Peng ZHAN
Acta Pharmaceutica Sinica 2022;57(10):2960-2971
The urate transporter 1 (URAT1) which controls urate reabsorption is a membrane transporter in the apical membrane of human renal proximal tubule epithelial cells. It was found that about 90% of patients suffer from hyperuricemia due to insufficient uric acid excretion. Therefore, the development of URAT1 inhibitors that can reduce the level of serum uric acid