1.Electro-acupuncture at points of Zusanli and Quchi exerts anti-apoptotic effect through the modulation of PI3K/Akt signalling pathway
Chongqing Medicine 2016;(3):303-306
Objective To evaluate the neuroprotective effect of electro‐acupuncture(EA) on cerebral ischemia‐reperfusion (IR) injury and deeply investigate the relationship between this neuroprotective effect and PI3K/Akt pathway .Methods A total of 60 Male adult SD rats were randomly divided into five groups:sham control group(SC ,n=12) ,ischemia control group ,(IC group , n=12) electro‐acupuncture group(EA group ,n= 12) ,EA + DMSO group(DMSO group ,n= 12) and EA + LY294002 group (LY2940002 group ,n=12) .Rats in the IC group、EA group、DMSO group and LY2940002 group underwent 2 h of middle cerebral artery occlusion(MCAO) ,followed by 72 h of reperfusion .DMSO or LY294002 was injected into the lateral ventricle at 30 min be‐fore the ischemia .Rats of the IC group ,EA group ,DMSO group and LY2940002 group received electro‐acupuncture at 24 h after the operation and continued until animals were sacrificed at 72 h after the operation ,and the stimulation parameters were set as fol‐lows :disperse wave ,30 min of each time ,once a day .Neurological deficit scores were assessed at 24 h ,48 h and 72 h after the IR in‐jury .The infarct volume was determined at 72 h after the IR injury using TTC staining .Apoptotic cells in the cerebral cortex were quantified under confocal fluorescence microscope using TUNEL staining .The expression of PI3K ,Akt ,p‐Akt ,Bad and p‐Bad at the protein level was assessed by Western blotting .Results Significant differences were observed in terms of neurological deficit scores between and among the EA group ,DMSO group and other groups at 48 h and 72 h after the cerebral IR injury(P<0 .05) .At 72 h after the cerebral IR injury ,the infarct volume of the IC group and LY294002 group was significantly larger than those of the EA group and DMSO group(P<0 .05) .Compared with the IC group and LY294002 group ,EA treatment greatly reduced the number of apoptotic nerve cells(P<0 .01) .The expression of PI3K ,p‐Akt and p‐Bad at the protein level in the EA group and DMSO group were higher than those of the IC group and LY294002 group(P<0 .05) .Conclusion EA treatment at points of Zusanli(ST36) and Quchi(LI11) exerted the neuroprotective effect on the cerebral IR injury through the modulation of PI3K/Akt pathway .
2.Analysis of skin microbiota diversity in patients with pemphigus based on 16S rDNA sequences
Lili LI ; Xiukun SUN ; Hong SHEN
Chinese Journal of Dermatology 2021;54(3):212-219
Objective:To analyze the skin microbiota diversity in patients with pemphigus vulgaris (PV) using 16S rDNA sequencing.Methods:Ten patients with PV and 10 healthy controls were collected from the Department of Dermatology, the Third People′s Hospital of Hangzhou. Skin swabs were collected from perilesional skin (PV group) and contralateral non-lesional skin (PVn group) of the patients with PV, as well as from the corresponding body sites of the healthy controls (normal control group) . The 16S rDNA amplicon sequencing technology was used for gene sequencing and classification in all microbiota samples, and Usearch software for data cluster analysis to obtain operational taxonomic units (OTUs) and assess species abundance at the phylum, class, order, family and genus levels. Observed species index, Shannon index and Simpson index were used to estimate α diversity, and principal coordinate analysis (PCoA) was performed to analyze β diversity. Linear discriminant analysis effect size (LEfSe) analysis was conducted to identify differentially abundant species in each group. PICRUSt software was used for gene function prediction. Wilcoxon rank sum test was used as nonparametric test for comparisons between 2 groups, and Kruskal Waills test as nonparametric test for comparisons among 3 groups.Results:There were 2 002, 1 869, 1 751, 1 611 and 1 120 OTUs at phylum, class, order, family and genus levels respectively. Cluster analysis showed that skin microbiome in the 3 groups mainly consisted of Firmicutes, Actinobacteria, Bacteroidetes and Proteobacteria at the phylum level. At the genus level, Staphylococcus was the most abundant in the PV group and PVn group, and Corynebacterium was the most abundant in the normal control group. The observed species index, Shannon index and Simpson index all significantly differed among the 3 groups (all P< 0.05) , and the Shannon index and Simpson index were significantly lower in the PV group (3.24±1.30, 0.70±0.19, respectively) than in the normal control group ( P< 0.05) . PCoA analysis showed no significant difference in β diversity among the 3 groups ( P=0.054) . Rank sum test showed that the abundance of 32 species significantly differed among the 3 groups ( P< 0.05) . Among them, high relative abundance was observed in the class Bacilli enriched in the PV group, as well as the genera Micrococcus and Brevundimonas enriched in the normal control group. According to the disease duration, the patients with PV were divided into long-course PV group with disease duration of ≥ 3 months, and short-course PV group with disease duration of < 3 months. Clostridiales, Oscillibacter, Sphingomonas were enriched in the long-course PV group, and Gammaproteobacteria was enriched in the short-course PV group. Gene function prediction analysis showed that the genes related to infectious diseases were enriched in the pemphigus group. Conclusion:The 16S rDNA-based microbiota profiling suggested differences in the diversity and composition of skin microbiota between patients with PV and healthy individuals.
3.The Research of the Medical Students’ Education Cost Control
Qian LIU ; Li ZI ; Xiukun FAN
Chinese Health Economics 2014;(2):82-84
The objective of the medical students’ education cost control is to reasonably reduce the education cost differences caused by mismanagement and insufficient investment. The budget is an important tool for the control;the elabrate cost accounting is the essential information condition for the control. It is proposed that enhancing the control power must clear responsibility cost, the education quality cost is guaranteed through both increasing income and reducing expenditure.
4.Study on gene mutation in 11 Chinese families with Hailey-Hailey disease
Hang LI ; Xiukun SUN ; Dingfang BU ; Xuejun ZHU
Journal of Peking University(Health Sciences) 2003;0(04):-
Objective: To screen and identify gene mutations of 11 Chinese patients with Hailey Hailey disease (HHD). Methods: Cases of HHD were diagnosed by history, clinical menifestations and pathology. Then genomic DNA samples of patients were extracted from perpheral blood leukocytes, and polymerase chain reaction(PCR), DNA sequencing were performed. Results: We found five mutations in ATP2C1 gene including 3 nonsense mutations and 2 splicing mutations. Four of them were novel mutations. Conclusion: Both nonsense mutation and splicing mutation could affect the rusult of transcription,translation, and the functions of protein encoded by ATP2C1 gene, so the mutations reported in this study is the underlying cause of HHD.
5.Radical resection of rectal carcinoma by laparoscopic versus open approach
Hongxu JIN ; Xuefeng ZHANG ; Jin LI ; Yongshuang LI ; Guoqiang WU ; Xize WANG ; Huayuan QU ; Xiukun ZONG
Chinese Journal of General Surgery 1997;0(04):-
Objective To study the feasibility and curative effect of laparoscopic radical resection of rectal carcinoma. Methods Sixty-two cases were enrolled in this study between Feb 2003 and Mar 2005, including 32 cases undergoing laparoscopic radical resection (19 Dixon and 13 Miles) , and 30 cases undergoing open radical resection (22 Dixons and 8 Miles). Results The mean operation time of laparoscopic group was 195 min, and open group was 156 min (P 0. 05 ). The GI and urination function of laparoscopic group recovered faster than open group ( evacuated was 2. 7 days vs. 3. 7 days, P
6.Diagnostic value of cerebral perfusion SPECT/CT combined with brain MRI in patients with ischemic cerebrovascular disease
Tingting LIU ; Jin QIU ; Xiukun XU ; Chunmei BAI ; Hui LI ; Xiaohua ZHU
Chinese Journal of Nuclear Medicine and Molecular Imaging 2016;36(3):232-236
Objective To evaluate the diagnostic value of cerebral perfusion SPECT/CT combined with brain MRI in patients with ischemic cerebrovascular disease.Methods A total of 107 cases with ischemic cerebrovascular disease from August 2011 to August 2013 (71 males,36 females,age:33-84years) were retrospectively studied,including 31 cases with transient ischemic attack,40 cases with the first onset of cerebral infarction,36 cases with recurrent cerebral infarction.99Tcm-ECD SPECT/CT and brain MRI were performed within 7 d after attack.The interval between the two scans was within 5 d.The number of lesions and detection rate by SPECT/CT,SPECT,MRI,CT,and their combination were calculated respectively,and analyzed using x2 test.Results The detection rate was:SPECT/CT+MRI (97.20%,104/107)=SPECT+MRI (97.2%,104/107) >SPECT/CT (95.33%,102/107)>SPECT (90.65%,97/107) >MRI (85.05%,91/107)>CT (65.42%,70/107).No statistically significant difference was observed between the detection rate of SPECT/CT+MRI and SPECT+MRI,SPECT/CT (x2 =0.17,0.13;both P>0.05),while there was statistically significant difference between SPECT/CT+MRI and SPECT,MRI,or CT (x2 =4.01,9.76,35.50;all P<0.05).SPECT/CT detected more ischemic lesions located in brain gray matter and revealed crossed cerebellar diaschisis,while MRI was better for detecting small lacunar lesions in basal ganglia,brainstem and deep white matter.Conclusions SPECT/CT is valuable for the detection of ischemic cerebrovascular disease.hnproved assessment may be achieved by the combination of SPECT/CT and MRI.
7.Hand-assisted laparoscopic splenectomy plus portozygos disconnection procedure for patients with portal hypertension
Xuefeng ZHANG ; Guoqiang WU ; Hongxu JIN ; Jin LI ; Huiyong JIANG ; Xiukun ZONG
China Journal of Endoscopy 2005;11(8):785-788,791
[Objective] To explore the techniques of hand-assisted laparoscopic splenectomy plus portozygos disconnection procedure. [Methods] 18 patients with portal hypertension were operated by hand-assisted laparoscopic splenectomy plus portozygos disconnection. [Results] The operations were completed successfully. The mean operative time was 180(150~260) minutes, the mean blood loss estimated was 540(200~2 000) mL, the mean weight of spleen was 910 (500~2000) g and the mean length of hospital stay was 9.7 (8~18) days after operation. All patients had recovered rapidly and suffered less pain and only 5 patients needed analgesic. The mean recovery time of the bowel function was 52(24~74) hours. The hand incisions healed well, and only one occurred complications and another suffered death. [ Conclusions ] Hand-assisted laparoscopic splenectomy plus portozygos disconnection procedure is to be feasible and safe, and has the merits of minimally invasive surgery.
8.Study on embryonic toxicity of Senecio scandens, Qianbai Biyanpian and total alkaloid from S. scandens in rats.
Yong ZHAO ; Aihua LIANG ; Ting LIU ; Chunying LI ; Xiukun WANG ; Yan YI ; Zuguang YE
China Journal of Chinese Materia Medica 2010;35(3):373-377
OBJECTIVETo investigate the characteristics of embryonic toxicity of Senecio scandens, its total alkaloid and Qianbai Biyanpian so that to provide guidance for the safety of medication during pregnancy.
METHODTwo hundred and twenty pregnant SD rats were divided into 11 groups: control group, positive group (cyclophosphamide 10 mg x kg(-1)). Water extract of S. scandens (doses: 7.5, 15.0, 30.0 g herb of S. scandens per kilogram body weight respectively). Qianbai Biyanpian and total alkaloid at the same doses levels with the water extract of S. scandens (doses were expressed as herb of S. scandens per kilogram body weight). The test articles were given to the pregnant rats by gavage from day 6 to day 15 of pregnancy. Body weight and the food consumption of pregnancy rats, and fetal weight and length were measured. The number of absorbed and dead embryos was recorded. Fetuses were examined in viscus and bones.
RESULTWeight and the food consumption of pregnancy rats in high-dose of Qianbai Biyanpian and total alkaloids decreased. All treatment groups had no significant change in the number of absorbed embryos, but the stillbirths were significantly increased in high-dose groups of water extract and total alkaloids as compared with control group. Bone deformities such as fontanel expanding, hypoplasia of parietal bone, occipital bone and cervical arch were observed. Rib abnormality could also be seen in some rats. All water extract of S. scandens, Qianbai Biyanpian and total alkaloid could cause the bone abnormalities, but the percentage of bone deformities of total alkaloids was the highest (up to 80%).
CONCLUSIONS. scandens and its total alkaloids, its formula Qianbai Biyanpian can cause rat skeletal deformities in fetuses when they were given during pregnancy. It is suggested that S. scandens and the product containing S. scandens should not be used during pregnancy.
Alkaloids ; chemistry ; toxicity ; Animals ; Body Weight ; drug effects ; Drugs, Chinese Herbal ; toxicity ; Eating ; drug effects ; Embryo, Mammalian ; drug effects ; Female ; Male ; Pregnancy ; Rats ; Rats, Wistar ; Senecio ; chemistry
9.Research on retrobulbar hemodynamics in senile patients with ischemic ophthalmopathy measured by color Doppler ultrasound
Duihong LI ; Yuanyuan ZHU ; Xiukun HOU ; Hui WANG ; Lipeng SUN
Chinese Journal of Geriatrics 2018;37(11):1248-1250
Objective To investigate the retrobulbar hemodynamic changes in elderly patients with ischemic ophthalmopathy(IOP).Methods Three groups of 35 elderly unilateral IOP(n=35 patients),32 elderly normal eye(n=32 volunteers)and 30 non-elderly normal eye(n=30 volunteers) were recruited in our hospital for the IOP or not,for elderly(aged≥60)or not(aged <60).The peak systolic velocity(PSV),end-diastolic velocity(EDV),resistance index(RI),color Doppler blood stream spectrum form and arm-retinal circulation time(A-RCT) in both ophthalmic artery(OA) and central retinal artery(CRA)were measured on three groups by color Doppler flow imaging(CDFI)and fundus fluorescein angiography(FFA).Results Compared with elderly normal eye group,or with non-elderly normal eye group,the elderly unilateral IOP group showed that PSV and EDV of both OA and CRA were decreased,RI was increased,CD blood stream spectrum form was changed and A-RCT was prolonged(all P<0.05).Compared the non-elderly normal eye group,the elderly normal eye group showed that the difference in PSV,EDV,RI,A-RCT had no statistical significance(all P >0.05),while CD blood stream spectrum form was changed(P<0.05).Conclusions In the elderly unilateral IOP patients,PSV and EDV of both OA and CRA are decreased,RI is increased,blood stream spectrum form is changed,and A-RCT is prolonged.The color Doppler uhrasound-detected hemodynamic changes are displayed clearly so that CDFI can provide a reliable evidence for clinical diagnosis of IOP.
10.Expressions and significances of autophagy-related genes Beclin-1, p62 and LC3 in esophageal squamous cell carcinoma
Zhengmeng ZHANG ; Fengyu LI ; He EN ; Lingjuan GAO ; Hongyan LI ; Xiukun ZHANG ; Shuxia WEI ; Zenghu ZHAO
Cancer Research and Clinic 2021;33(8):596-600
Objective:To investigate the expressions and significances of autophagy-related genes Beclin-1, LC3 and p62 in esophageal squamous cell carcinoma (ESCC).Methods:The clinical data of 112 patients with primary ESCC who underwent surgery at the 81st Group Army Hospital of Chinese PLA from January 2015 to December 2016 were retrospectively analyzed. Immunohistochemistry was used to examine the expressions of Beclin-1, p62 and LC3 proteins in 112 ESCC tissues and 31 adjacent normal esophageal mucosa tissues. Furthermore, the expressions of the above three autophagy-related markers in ESCC and the relationship between their expressions and the clinicopathological characteristics of patients were analyzed.Results:The positive expression rates of Beclin-1, LC3 and p62 in ESCC tissues were 32.14% (36/112), 37.50% (42/112) and 63.39% (71/112), The positive expression rates of Beclin-1, LC3 and p62 in adjacent normal esophageal mucosa tissues were 61.29% (19/31), 64.52% (20/31) and 32.26% (10/31), and the differences were statistically significant ( χ2 values ??were 8.715, 7.216 and 9.584, all P < 0.01). The positive expression rates of Beclin-1 and LC3 in ESCC were lower than those in adjacent normal esophageal mucosa tissues, and the positive expression rate of p62 in ESCC was higher than that in adjacentnormal esophageal mucosa tissues. In ESCC patients, the expression of Beclin-1 was related to histological grade, infiltration depth, TNM staging and lymph node metastasis (all P < 0.05); the expression of LC3 was related to infiltration depth and TNM staging (both P < 0.01); the expression of p62 was related to lymph node metastasis ( P < 0.01). In ESCC, the expression of LC3 was positively correlated with the expression of Beclin-1 ( r = 0.731, P = 0.001), and negatively correlated with the expression of p62 ( r = -0.215, P = 0.023). Conclusions:Autophagy plays a certain role in the occurrence and development of ESCC. Combined detection of autophagy-related genes Beclin-1, p62 and LC3 can assist clinical diagnosis and guide follow-up comprehensive treatment.