1.Clinical study on the treatment of 29 cases of HIV/AIDS with the traditional Chinese medicine combined with HAART
Yuezhen WANG ; Pu DU ; Suisheng ZHONG ; Fangmei WANG ; Jintao LIU
International Journal of Traditional Chinese Medicine 2011;33(5):385-388
Objective To explore a reasonable therapeutic plan for treating HIV/AIDS with traditional Chinese medicine plus western medicine. Methods Twenty-nine patients with HIV/AIDS were selected and recruited into a HIV group and a AIDS group according to the clinical diagnosis. Each group was further divided into comparison stage and treatment stage. In HIV group, observations and statistics of observation indexes were performed during the comparison stage; while TCM treatment was applied in the treatment stage. In AIDS group, HAART was applied in the comparison stage, and HAART combined with TCM therapy were used in the treatment stage. Both comparison stage and the treatment stage lasted 12 months. Results In HIV group, self control results showed that immune and virus indexes did not have significant changes, but also with no side or toxic effects, In the AIDS group, contrasting between the comparison stage and the treatment stage showed that there were significant improvement of symptoms (χ2=4.9231, 2.5000, P<0.05) , anti-toxic effects (χ2=9.333、 16.4091、10.2273, P<0.01) and immune indexed(t=3.1990,P<0.01) after treated additionally with traditional Chinese medicine. Conclusion Traditional Chinese medicine could improve the immunity function and clinical symptoms, reduce side effect of HAART medicine and stabilize CD4+ T cells of patient with HIV/AIDS.
2.Association of 5-59A/G Polymorphism in Intron Region of Htra2 Gene with Parkinson's Disease
Xiyao ZHAO ; Yusen CHEN ; Fangmei HE ; Lei ZHAO ; Liangfang LIU ; Jiangang PAN ; Bin ZHAO
Chinese Journal of Rehabilitation Theory and Practice 2010;16(7):650-652
Objective To evaluate the association between the single-nucleotide polymorphism (SNP) of the 5-59A/G (rs2241027) of Htra2 gene and Parkinson's disease in Han population of the western GuangDong province. MethodsThe restriction fragment length polymorphism (PCR-RFLP) was used to determine the 5-59A/G polymorphism in the intron region of Htra2 gene in the case group (n=56) and healthy control group (n=109). ResultsA allele frequency of 5-59 A/G in cases (46.4%) was trended to more than that in controls (36.7%) (P=0.073), as well as the AA genotyping frequency (21.4% vs 11.0%, P=0.072). For the male, the frequency of AA genotype was significantly more in cases (25.7%) than that in controls (10.3%) (P=0.041), and the frequency of A allele was trended to more in cases (48.6%) than in controls (34.6%) (P=0.051). ConclusionA allele and AA genotype of the 5-59A/G (rs2241027) of Htra2 gene may increase the risk of suffering from Parkinson's disease, especially for males.
3.Relationship between platelet distribution width and cardiac syndrome X
Fangmei LIU ; Jun JI ; Qingchi LIAO ; Min DENG ; Shenghu HE
Journal of Clinical Medicine in Practice 2018;22(9):118-120
Objective To explore the relationship between platelet distribution width (PDW) and cardiac syndrome X.Methods Totally 58 patients with cardiac syndrome X and 70 normal controls were selected,and PDW level was detected in the blood samples of all the patients.Results The PDW level was (14.1± 2.9) in the cardiac syndrome X group,which was significantly higher than (12.6 ± 1.9) in the normal controls (P < 0.01).The binary Logistic regression analysis showed that RDW could be used as an independent predictor for cardiac syndrome X.Conclusion High platelet distribution width is associated with attack of cardiac syndrome X.
4.Relationship between platelet distribution width and cardiac syndrome X
Fangmei LIU ; Jun JI ; Qingchi LIAO ; Min DENG ; Shenghu HE
Journal of Clinical Medicine in Practice 2018;22(9):118-120
Objective To explore the relationship between platelet distribution width (PDW) and cardiac syndrome X.Methods Totally 58 patients with cardiac syndrome X and 70 normal controls were selected,and PDW level was detected in the blood samples of all the patients.Results The PDW level was (14.1± 2.9) in the cardiac syndrome X group,which was significantly higher than (12.6 ± 1.9) in the normal controls (P < 0.01).The binary Logistic regression analysis showed that RDW could be used as an independent predictor for cardiac syndrome X.Conclusion High platelet distribution width is associated with attack of cardiac syndrome X.
5.Focal cerebral ischemia model of middle cerebral artery in rabbits induced by the improved suture method
Yu YANG ; Fangmei ZHANG ; Zhaoming GE ; Hongbin CAI ; Zhenzhen FAN ; Haoyue WANG ; Zongyan MA ; Xudong ZHANG ; Pei LIU
Chinese Journal of Cerebrovascular Diseases 2017;14(11):585-588
Objective To investigate the establishment of focal cerebral ischemia model in rabbits with the improved suture method.Methods A total of 45 healthy and clean adult New Zealand rabbits were divided into either a sham operation group (n =5) or a model group (n =40) using random number table method before modeling,and the sex was not limited.The self-made head ends of 2-0 fishing lines dipped in paraffin were used as the sutures.The external carotid artery was cut and inserted into a intracranial artery through the internal carotid artery and blocked the origin of middle cerebral artery.The neurological function score was performed after 6 h.The neurological deficit scores ≥2 was successful modeling.The rabbits were killed by anesthesia.The brain slices were stained with 2% 2,3,5-triphenyl tetrazolium chloride solution.The infarct foci were observed.The diameters of suture head and the depth of suture insertion were compared in the model rabbits with successful modeling,failure,and death in the model group.Results There were 40 rabbits in the model group,six of them died,including 4 died of subarachnoid hemorrhage within 4 h after operation,and 2 died from anesthetic accident.The mortality rate was 15.0%.Seven rabbits failed,mainly because of cerebral vasospasm and the insertion depth of suture was insufficient.Twenty-seven had successful modeling,and the success rate was 67.5%.All the rabbits in the sham operation group survived.The diameter of the suture head and insertion depth in the successful modeling rabbits were compared with the death and failure outcome in rabbits.The difference was statistically significant (diameter:0.52 ± 0.14 mm vs.0.45 ±0.40 mm and 0.58 ±0.17 mm;depth:5.49 ±0.17 cm vs.6.04 ± 0.11 cm and 4.26 ±0.30 cm;all P < 0.05).Conclusions The improved suture method can successfully prepare the focal cerebral ischemia model of middle cerebral artery in rabbits.The method is simple.Its repeatability and practicability are better.
6.Research progress on the role of mitochondria-associated membranes in the pathogenesis of Alzheimer's disease
Shiyu LIU ; Yumin XU ; Hongcai XU ; Fangmei LU
Chinese Journal of Comparative Medicine 2024;34(7):121-130
Mitochondria-associated membranes(MAMs)are a subcellular compartment involved in the communication and material exchange between the mitochondrial outer membrane and endoplasmic reticulum membrane.MAMs perform various biological processes in cells under different conditions.MAM-dysfunction-mediated calcium homeostasis imbalance,endoplasmic reticulum stress,mitophagy defects,mitochondrial fission/fusion dynamics imbalance,lipid metabolism disorders,and inflammatory responses are key pathogenic factors in Alzheimer's disease(AD).This article reviews the structure and function of MAMs,their involvement in AD pathology,and drug intervention targets,and discusses the role of MAMs in the pathogenesis of AD and the latest research into their mechanisms,to provide new ideas for the prevention and treatment of AD.
7.Oxidative stress injury and transcriptome analysis of human myocardial AC16 cells induced by zinc oxide nanoparticles
Fangmei Lu ; Yujie Li ; Jiabin Guo ; Dexiang Xu ; Chao Liu
Acta Universitatis Medicinalis Anhui 2023;58(3):450-456
Objective:
To investigate the oxidative stress injury of nano zinc oxide nanoparticles(ZnO NPs) on human myocardial cells (AC16) ,and to analyze the mechanism of ZnO NPs from the transcriptome level.
Methods:
Dynamic light scattering (DLS) was used to characterize and detect ZnO NPs.After AC16 cells were exposed to ZnO NPs at different doses and at different times,the cell survival rate was determined by CCK-8 method.AC16 cells were divided into control group,ZnO NPs (50,100,200 μmol /L) ,after 6 h treatment,the mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) were measured.AC16 cells were divided into control group,50 μmol /L ZnO NPs group and 200 μmol /L ZnO NPs group.After 6 h exposure,total RNA was extracted by TRIzol for transcriptome analysis ,and the differentially expressed genes were enriched by gene body ( GO) ,Kyoto Encyclopedia of Genes and Genomes (KEGG) .
Results :
The results of DLS showed that the hydrodynamic diameter was ( 192. 2 ± 1. 63 ) nm and the Zeta potential was ( -23. 26 ± 1. 05 ) mV. CCK-8 results showed that the survival rate of AC16 cells decreased with the increase of dose and time of exposure to ZnO NPs. Fluorescence quantification showed that with the increase of ZnO NPs exposure dose,MMP significantly decreased at 100 μmol /L ZnO NPs(P<0. 05) ,and ROS significantly increased at 50 μmol /L ZnO NPs(P<0. 05) .Using the multifunctional microplate reader,it was observed that MMP and ROS were statistically significant at 100 and 50 μmol /L ZnO NPs,respectively,showing a decrease in MMP and an increase in ROS.Transcriptome analysis showed that 1 071 genes were enriched in the 50 μmol /L ZnO NPs group compared with the control group,including 561 up-regulated genes and 510 down-regulated genes.Compared with the control group,7 164 genes were enriched in 200 μmol /L ZnO NPs group,including 4 098 up-regulated genes and 3 066 down-regulated genes.GO and KEGG analysis showed that the differential genes were mainly concentrated in ROS,antioxidant activity,mitochondrial cytochrome C release,apoptosis and other signaling pathways.
Conclusion
ZnO NPs can decrease the survival rate of AC16 cells and induce mitochondrial damage and oxidative stress,among which ROS-mediated oxi- dative stress and mitochondrial function changes are important toxic mechanisms of ZnO NPs induced AC16 cytotoxicity.