1.Research progress in protective effects of remote ischemic conditioning on different organs
Wenlang LI ; Guangyou DUAN ; He HUANG
Chongqing Medicine 2024;53(8):1254-1259,1265
Remote ischemic conditioning (RIC) is a means of playing the systemic organ protective effect by transient ischemia/reperfusion of the limb,thus reduces the damage caused by more severe ischemic events.RIC can be applied before,during and after ischemic events;among them,the application before ische-mia is relatively more,which is called the remote ischemic preconditioning (RIPC).Researches have shown that RIC has considerable clinical translation value characterizing by non-invasion,economy,safety and effect. Although the specific mechanism needs to continue to be explored,but its protective targets are quite exten-sive.Especially for the heart,RIC seems to have favorable protective effects on the heart under almost all pathological conditions.Moreover,RIC has a certain degree of protective effect on the nervous system,lungs,livers and kidneys.Based on this,this article reviews the protective effects of RIC in different organs and its possible mechanisms.
2.Clinical comparison of modified postauricular transverse incision and traditional vertical incision for microvascular decompression in the treatment of hemifacial spasm
Jing WANG ; Guoyuan YU ; Junjie ZHAO ; Huatang YANG ; Xiujie LIU ; Xiwang WANG ; Ning ZHANG ; Guangyou LI ; Kefen LI ; Fang YANG
Chinese Journal of Postgraduates of Medicine 2023;46(7):600-604
Objective:To compare the effect of modified postauricular transverse incision and traditional vertical incision for microvascular decompression in the treatment of hemifacial spasm.Methods:Prospective study method was used. A total of 116 patients with hemifacial spasm in Handan Central Hospital from January 1, 2019 to January 1, 2020 were selected, and divided into two groups according to the admission order. Both groups underwent microvascular decompression; control group (57 cases) received traditional vertical incision, while treatment group (59 cases) received modified postauricular transverse incision. The brainstem auditory evoked potential (BAEP), pain degree, surgical indicators, facial aesthetic satisfaction and complications were compared between two groups.Results:After treatment, the BAEP of latency, wave interval and wave amplitude in the two groups increased compared with that before treatment, and the BAEP of latency, wave interval and wave amplitude in the treatment group were higher than those in the control group: (1.89 ± 0.15) ms vs. (1.62 ± 0.21) ms, (7.89 ± 0.15) ms vs. (6.25 ± 0.41) ms, (1.79 ± 0.19) ms vs. (1.54 ± 0.11) ms ( P<0.05). After treatment, the visual analogue score (VAS) of patients in the two groups decreased compared with that before treatment, and the VAS of patients in the treatment group was lower than that in the control group: (1.15 ± 0.27) points vs. (2.18 ± 0.24) points ( P<0.05). The operation time, intraoperative bleeding volume and postoperative scar length of patients in the treatment group were less than those in the control group: (60.41 ± 3.81) h vs. (76.87 ± 3.87) h, (30.18 ± 4.19) ml vs. (56.87 ± 4.15) ml and (4.18 ± 1.07) cm vs. (6.87 ± 1.05) cm ( P<0.05). The satisfaction rate of patients in the treatment group was higher than that in the control group: 91.53% (54/59) vs. 71.93% (41/57) ( P<0.05). The complication rate of patients in the treatment group was lower than that in the control group: 5.08% (3/59) vs. 21.05% (12/57) ( P<0.05). Conclusions:Compared with traditional vertical incision, the modified transverse incision for microvascular decompression in the treatment of hemifacial spasm can reduce intraoperative blood loss and postoperative scar area, enhance brainstem auditory evoked potential, and improve facial aesthetics, which is worthy of recommendation.
3.Genome of the Giant Panda Roundworm Illuminates Its Host Shift and Parasitic Adaptation
Xie YUE ; Wang SEN ; Wu SHUANGYANG ; Gao SHENGHAN ; Meng QINGSHU ; Wang CHENGDONG ; Lan JINGCHAO ; Luo LI ; Zhou XUAN ; Xu JING ; Gu XIAOBIN ; He RAN ; Yang ZIJIANG ; Peng XUERONG ; Hu SONGNIAN ; Yang GUANGYOU
Genomics, Proteomics & Bioinformatics 2022;20(2):366-381
Baylisascaris schroederi,a roundworm(ascaridoid)parasite specific to the bamboo-feeding giant panda(Ailuropoda melanoleuca),represents a leading cause of mortality in wild giant panda populations.Here,we present a 293-megabase chromosome-level genome assembly of B.schroederi to infer its biology,including host adaptations.Comparative genomics revealed an evolutionary trajectory accompanied by host-shift events in ascaridoid parasite lineages after host separations,suggesting their potential for transmission and rapid adaptation to new hosts.Genomic and anatomical lines of evidence,including expansion and positive selection of genes related to the cuticle and basal metabolisms,indicate that B.schroederi undergoes specific adaptations to survive in the sharp-edged bamboo-enriched gut of giant pandas by structurally increasing its cuticle thickness and efficiently utilizing host nutrients through gut parasitism.Additionally,we characterized the secretome of B.schroederi and predicted potential drug and vaccine targets for new control strategies.Overall,this genome resource provides new insights into the host adaptation of B.schroederi to the giant panda as well as the host-shift events in ascaridoid parasite lineages.Our findings on the unique biology of B.schroederi will also aid in the development of prevention and treatment measures to protect giant panda populations from roundworm parasitism.
4.The relationship of helicobacter pylori infection and FPG,lipid,glucose,uric acid, PLT,PDW and MPV in serum among health population
International Journal of Laboratory Medicine 2016;37(18):2548-2549,2552
Objective To investigate the infection status of helicobacter pylori(Hp) among health examination population ,and its relationship to lipids ,glucose ,uric acid ,PLT ,PDW and MPV .Methods Hp antibody in serum was tested by immune colloidal gold assay among of health population .And serum lipids ,glucose ,uric acid ,PLT ,PDW and MPV were measured in some subjects . A retrospective analysis was done to the data of 2 147 cases in health examination population .Results The infection rates of Hp was 38 .80% (833/2 147) in 2 147 cases .Among them ,the infection rate in male was 41 .10% (538/1 309) ,and which in female was 35 .20% (295/838) ,it was statistical difference in the infection rate in between male and female(P<0 .05) .The infection rate in age group(40 to 49) was higher than which in other age group and It was statistically significant (P<0 .05) ,and there were significant difference in between male age group and in female age group(P<0 .05) .Comparing the control group ,the serum levels of TC , LDL‐C were significantly higher(P<0 .05) ,while the serum level of HDL‐C was obviously lower(P<0 .05) .In patients with Hp infection and TC>5 .17 mmol/L ,the level of glucose and uric acid were significantly higher(P<0 .05) .Conclusion The distribu‐tion of the Hp infection was difference in gender and age;The infection of HP can effect the metabolism of serum lipids ,glucose and uric acid .
5.Comparison of sufentanil-tramadol PCIA between laparoscopic cholecystectomy and gynecological laparoscopy.
Shanna GUO ; Guangyou DUAN ; Jintao WANG ; Xiaohui CHI ; Li ZHANG ; Xianwei ZHANG
Chinese Journal of Surgery 2015;53(2):150-154
OBJECTIVETo compare the differences of postoperative patient-controlled intravenous analgesia for laparoscopic cholecystectomy and gynecological laparoscopy in female patients.
METHODSThis retrospective study included 645 female patients received laparoscopic cholecystectomy or gynecological laparoscopy (laparoscopic oophorocystectomy/myomectomy) between January 2011 and July 2012 in Tongji Hospital. Among them, 207 cases of sufentanil-tramadol patient-controlled intravenous analgesia (PCIA) were enrolled and divided into 2 groups:77 cases in laparoscopic cholecystectomy group, and 130 cases in gynecological laparoscopy group. The pressing frequency and consumption of PCIA, localization and quality of postoperative pain, visual analogue scale (VAS) at 4-6 h, 8-12 h, 18-24 h after surgery, and adverse effect were compared by t-test,χ(2) test, Fisher exact test or Mann-Whitney test.
RESULTSThere was no statistical difference of age, body mass index, and operation time between the two groups (all P > 0.05). As compared with the gynecological laparoscopy group (3 (4)), PCIA pressing frequency was higher in the laparoscopic cholecystectomy group (5 (7)), but there was no statistical difference (Z = -1.747, P = 0.081). PCIA consumption in the laparoscopic cholecystectomy group (79 (33) ml) was higher than that in the gynecological laparoscopy group (48 (30) ml) (Z = -6.267, P = 0.000). The postoperative pain localization and quality were different in the two groups, the patients in the laparoscopic cholecystectomy group experienced dull pain in lower abdomen, but the ones in the gynecological laparoscopy group had distending pain in upper abdomen and piercing pain around scapula. The differences of 4-6 h, 8-12 h, 18-24 h VAS scores in the two groups had no statistical significance (all P > 0.05). The total incidence of postoperative adverse effect between the two groups had no statistical significant difference (laparoscopic cholecystectomy group:11.7%, gynecological laparoscopy group:16.2%) (χ(2) = 0.778, P = 0.378). The incidence of dizziness was higher in the gynecological laparoscopy group (6.2%) than that in the laparoscopic cholecystectomy group (0) (Fisher exact test:P < 0.05).
CONCLUSIONIn the case of sufentanil-tramadol PCIA, laparoscopic cholecystectomy needs more postoperative analgesia, while gynecological laparoscopy has higher incidence of dizziness.
Analgesia, Patient-Controlled ; Cholecystectomy, Laparoscopic ; Female ; Gynecologic Surgical Procedures ; Humans ; Laparoscopy ; Pain Measurement ; Pain, Postoperative ; Retrospective Studies ; Sufentanil ; Tramadol
6.Expression of Translationally Controlled Tumor Protein (TCTP) Gene of Dirofilaria immitis Guided by Transcriptomic Screening.
Yan FU ; Jingchao LAN ; Xuhang WU ; Deying YANG ; Zhihe ZHANG ; Huaming NIE ; Rong HOU ; Runhui ZHANG ; Wanpeng ZHENG ; Yue XIE ; Ning YAN ; Zhi YANG ; Chengdong WANG ; Li LUO ; Li LIU ; Xiaobin GU ; Shuxian WANG ; Xuerong PENG ; Guangyou YANG
The Korean Journal of Parasitology 2014;52(1):21-26
Dirofilaria immitis (heartworm) infections affect domestic dogs, cats, and various wild mammals with increasing incidence in temperate and tropical areas. More sensitive antibody detection methodologies are required to diagnose asymptomatic dirofilariasis with low worm burdens. Applying current transcriptomic technologies would be useful to discover potential diagnostic markers for D. immitis infection. A filarial homologue of the mammalian translationally controlled tumor protein (TCTP) was initially identified by screening the assembled transcriptome of D. immitis (DiTCTP). A BLAST analysis suggested that the DiTCTP gene shared the highest similarity with TCTP from Loa loa at protein level (97%). A histidine-tagged recombinant DiTCTP protein (rDiTCTP) of 40 kDa expressed in Escherichia coli BL21 (DE3) showed immunoreactivity with serum from a dog experimentally infected with heartworms. Localization studies illustrated the ubiquitous presence of rDiTCTP protein in the lateral hypodermal chords, dorsal hypodermal chord, muscle, intestine, and uterus in female adult worms. Further studies on D. immitis-derived TCTP are warranted to assess whether this filarial protein could be used for a diagnostic purpose.
Animal Structures/chemistry
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Animals
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Antibodies, Helminth/blood
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Antigens, Helminth/chemistry/*genetics/immunology/*isolation & purification
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Cloning, Molecular
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Dirofilaria immitis/chemistry/*genetics/immunology
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Disease Models, Animal
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Dogs
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Escherichia coli/genetics
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Gene Expression
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Molecular Sequence Data
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Molecular Weight
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Recombinant Fusion Proteins/chemistry/genetics/immunology/isolation & purification
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Sequence Analysis, DNA
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Tumor Markers, Biological/chemistry/*genetics/immunology/*isolation & purification
7.Retrospective analysis of cytomegalovirus infection in children of Wuhu City
Guiling SU ; Guangyou LI ; Zuo WANG ; Jiayan PAN
International Journal of Pediatrics 2014;(5):557-558
Objective To investigate the cytomegalovirus( CMV) infection in children of Wuhu City. Methods Serum samples from children n=874 were tested for CMV-IgM using commercial ELISA kits. Re-sults The CMV-IgM detective rate of serum samples from 874 children was 4. 46%. The positive rate of CMV-IgM was 4. 89%(26/531cases)and 3. 79%(13/343 cases)in boys and girls,respectively. There was no signifi-cant difference in the positive rate of CMV-IgM between boys and girls(χ2 =0. 37,P>0. 05). The positive rate peaked in children at age of >6 months~1 year(10. 19%). Clinical manifestations included liver dysfunction, neurological diseases,jaundice and pneumonia. Conclusion The positive rate of CMV-IgM in children in local district of Wuhu city is high,which should be given due attention.
8.Synthesis of A Novel Fluorescence Switch Conjugated Polymers and Its Discrimination Ability Toward S-Adenosylmethionine
Huizhi LI ; Tao ZHAI ; Guangyou ZHANG ; Meishan PEI
Chinese Journal of Analytical Chemistry 2014;(8):1132-1137
A novel fluorescent switch was constructed based on poly 3-{[ 1-( 2-hydrazino-2-oxoethyl ) piperidin-4-ylidene] methyl}thiophene ( PMTH ) in the presence of Pb2﹢ or S-adenosylmethionine ( SAM ) . The switch turned off in the presence of Pb2﹢owing to complex effect, and the fluorescence intensity of PMTH solution was efficiently quenched by Pb2﹢ ions. Upon adding SAM to the Pb2﹢-PMTH solution, which was stronger Pb2﹢ chelators, it could form more stable SAM-Pb2﹢, the Pb2﹢ ion was displaced from PMTH and the fluorescence of PMTH was recovered. By triggering the turn-on signal of PMTH, a new discrimination ability toward SAM method for the determination of SAM was established. The effects of the interaction on the fluorescence spectral characteristics of these Pb2﹢-PMTH and Pb2﹢-SAM complexes in H2 O-CH3 CH2 OH(4:1, V/V) solution, suitable reaction conditions and influencing factors were investigated. This method offered good sensitivity and selectivity for detecting SAM in the presence of amino acids and metal ions. Under optimum conditions, the concentration of SAM in the range from 1. 0 × 10-8-2. 0 × 10-6 mol/L exhibited a linear relationship with the relative fluorescence intensity. The regression equation was △I = 68. 51﹢72. 32c (μmol/L), the correlation coefficient r=0. 9982. The limit of detection was 8. 72×10-9 mol/L. The system was successfully applied for detecting SAM in human serum, urine and injection samples.
9.Influence of Shenmai injection on immune function in the treatment of locally advanced non-small cell lung cancer patients with concurrent chemoradiotherapy
Yiliang MENG ; Xiaohua LI ; Guangyou HUANG ; Chengle HUANG ; Shengwu HUANG ; Jianxian CHEN ; Xuesong ZHENG ; Ganque DENG
Chinese Journal of Primary Medicine and Pharmacy 2012;(23):3531-3532
Objective To observe the effect of Shenmai injection combined concurrent chemoradiotherapy on immune function in patients with locally advanced non-small cell lung cancer.Methods A total of 80 patients with locally advanced non-small cell lung cancer were randomly divided into treatment group and control group.In treatment group,40 patients received simultaneous three-dimensional conformal radiotherapy combined with TP(docetaxel+cisplatin)chemotherapy,while given Shenmai injection in the process of concurrent chemoradiotherapy.In control group,40 patients only received chemoradiotherapy.The changes of T cell subsets were observed between the two groups.Results It showed no significant differences in percentages of CD+3,CD+4,CD+16CD+56and CD+4/CD+8 ratio between two groups pre-treatment(all P>0.05).There were no significant adverse reactions occurred after received Shenmai injection in treatment group.Conclusion It play an important role in improving immune function of patients with locally advanced non-small cell lung cancer who received Shenmai injection combined concurrent chemoradiotherapy.
10.Research on Polyamidoamine Dendrimers Mediated Foreign Gene for Xenotransplantation Transfected Pig Sperm Cells
Huixiang YANG ; Baomin QIAO ; Guangyou WANG ; Shengzhi LI ; Yue ZHANG ; Changping LI ; Yong XU ; Tengxiang MA
Tianjin Medical Journal 2010;38(2):121-123
Objective:To investigate the effect of the new nanomaterials,polyamidoamine dendrimers PAMAM-D,mediated foreign gene human decay accelerating factor(hDAF) for xenotransplantation transfected pig sperm cells.Methods:PAMAM-D/hDAF cDNA compounds were made.The compounds were divided into 0.2 μg,0.4μg,0.6μg,0.8 μg and 1.0μg groups (each group adding corresponding dose of PAMAM-D in accordance with the N/P ratio 10:1,20:1,40:1),then were digested by restriction enzymes.The compounds were incubated with washed pig sperm cells.Then the transfection efficiency was detected by in situ hybridization in the different groups.Results:The PAMAM-D molecule can prevent electrophoretic migration of DNA in the compound.After digested the compounds by restriction enzymes,DNA can not be degraded.The transfection efficiency was different in different groups.Among the total,the efficiency was higher in both groups of 0.4 μg and 0.6μg than that of others.The top was the group of 0.4 μg linear plasmid plus PAMAM-D when the N/P ratio was 20:1(47.5%±O.2%,167% vs control group).Conclusion:PAMAM-D can improve the efficiency of exogenous gene transfeeted pig sperm cells,which can reinforce the stable binding of exogenous DNA to sperm cells.

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