1.Research progress in regulation roles of G protein-coupled receptors in hepatocellular carcinoma
Wenting PENG ; Wuyi SUN ; Xinran LI ; Jiachang SUN ; Wei WEI
Chinese Journal of Pharmacology and Toxicology 2017;31(4):358-366
G protein- coupled receptors (GPCRs), also known as seven- transmembrane domain receptors, constitute the largest superfamily of cell surface receptors. By coupling to heterotrimeric G proteins, arrestins and other signaling molecules, GPCRs modulate diverse signal transduction pathways under physiological and pathological conditions. Recent studies have revealed crucial roles of GPCRs in tumorigenesis and development of cancer metastasis. This review summarizes roles of GPCRs, particularly the roles of those coupled to chemokines, prostaglandin, lysophosphatidic acid, endothelin, catecholamine and angiotensin in proliferation, invasion, metastasis and angiogenesis of hepatoma cells and development of hepatocellular carcinoma. The potential of GPCRs- based therapeutics being used for hepatocellular carcinoma is also highlighted.
2.The clinical curative effect of coronary artery bypass graft in the treatment of acute coronary syndrome
Shuxiu SUN ; Wei LIU ; Peng LI
Chinese Journal of Postgraduates of Medicine 2013;(8):16-18
Objective To explore the curative effect of coronary artery bypass graft (CABG) in the treatment of acute coronary syndrome (ACS).Methods Clinical data of 64 patients with ACS were retrospectively analyzed,41 patients received CABG (CABG group) and 23 patients received percutaneous coronary intervention (PCI,PCI group).Mainly cardiac events and secondary cardiac events were compared.Results The incidence rate of cadiovascular and cerebrovascular events during hospitalization in CABG group was 7.32%(3/41),in PCI group was 8.70% (2/23),there was no significant difference (P > 0.05).All patients accomplished follow-up and follow-up time was 12-48 months.The meta follow-up time in CABG group was 35.26 months,in PCI group was 33.19 months.The incidence rate of cadiovascular and cerebrovascular events during follow-up in CABG group was 19.51% (8/41),in PCI group was 30.43%(7/23),there was no significant difference (P> 0.05).The incidence rate of death,myocardial infarction,cerebrovascular events,angina pectoris and total cadiovascular and cerebrovascular events between two groups had no significant difference(P> 0.05).Conclusions The surgery treatment in ACS is feasible,the curative effect of CABG and PCI is therapeutic equivalence.The choice of operation should be based on patients' condition and individual choice.Appropriate revascularization can get the best treatment efficiency.
3.Clinical efficacy of preoperative radiotherapy and chemotherapy in 39 patients with locally advanced cervical cancer
Fengyan SUN ; Nan WANG ; Wei PENG
Chinese Journal of Primary Medicine and Pharmacy 2017;24(4):596-599
Objective To analyze the clinical efficacy of preoperative concurrent radiotherapy and chemo-therapy and radical operation in the treatment of cervical cancer patients with locally advanced cervical cancer (IB -IIB).Methods 80 patients who were diagnosed locally advanced (stage IB -IIB)cervical cancer,were divided into observation group (preoperative radiotherapy and chemotherapy group)and control group (radical radio-therapy group).The short -term efficacy,complications and follow -up data were compared between the two groups. Results The short -term efficacy of the observation group was 87.2%,which of the control group was 95.1%,and there was no significant difference (χ2 =1.579,P =0.209).As to the early complications of the two groups,there were no significant differences in gastrointestinal tract reaction(χ2 =0.000,P =0.987),rectal reaction(χ2 =2.709, P =0.100),bladder reaction (χ2 =1.343,P =0.247)and bone marrow suppression(χ2 =1.898,P =0.168).Late complications:in the observation group,the radiation proctitis[4 cases(10.3%)vs.14 cases(34.1%)]and the radiation cystitis[3 cases(7.7%)vs.13 cases(31.7%)]were less than those of the control group,the differences were statistically significant(χ2 =6.542,P =0.011&χ2 =7.205,P =0.007).The average follow -up time was 38.6 months in the observation group,which was 44.8 months in the control group.There was no significant difference in survival rate between the two groups(χ2 =0.075,P =0.784 & χ2 =0.032,P =0.858).Conclusion Locally advanced cervical cancer (IB -IIB)patients received preoperative concurrent radiotherapy and chemotherapy has important clinical value.The treatment makes the local giant block tumor shrink significantly,which is conducive to the implementation of surgery,and reduce the incidence of late complications compared with radical radiotherapy.
4.Efficacy of Five Mosquito Larvicides Against Mosquito Larvae in Field
Chenxi SUN ; Peng SHEN ; Wei WANG
Journal of Environment and Health 1992;0(02):-
malathion.68 days after chlopyrifos was sprayed,the decrease rate of larvae density was still 95.34%.Conclusion The efficacy and persistent activity of chlopyrifos and the mixture of Bti and Bs-10 against mosquito larvae was better than the others.To control mosquito larvae in field,the suitable larvicides and application dosages should be applied according to the environment,characteristics,the pollute condition of water body etc.
5.Type Ⅲ TGF-βreceptor mediated signaling pathway and its role in fibrotic diseases
Xinran LI ; Wuyi SUN ; Yuanjing GU ; Wenting PENG ; Wei WEI
Chinese Pharmacological Bulletin 2016;32(12):1629-1633,1634
Transforming growth factor β(TGF-β)superfamily ligands play an important role in regulating cellular homeostasis including proliferation,differentiation,apoptosis,immune sur-veillance and angiogenesis.Type Ⅲ TGF-βreceptor (TβRⅢ) is considered to be the coreceptor of TGF-βsuperfamily.TβRⅢnot only has an effect on classical Smad signaling pathway,but also on non-Smad signaling pathway.TβRⅢplays a crucial role in fibrosis,tumor,cardiovascular diseases via mediating kinds of signaling pathways.This paper reviews TβRⅢ mediated sig-naling pathway and its role in fibrotic diseases.
6.Clinical Observation of Skin Needling plus Flash Cupping for Hemifacial Spasm
Peng LIU ; Wei ZOU ; Xueping YU ; Wei TENG ; Xiaowei SUN
Shanghai Journal of Acupuncture and Moxibustion 2015;(6):543-544
Objective To observe the clinical efficacy of skin needling plus flash cupping for hemifacial spasm. Method Forty patients were randomized into a treatment group and a control group, 20 in each group. For both groups, the following acupoints were selected: Baihui (GV20), Sishencong (EX-HN1), Yifeng (TE17), Xiaguan (ST7), Cuanzhu (BL2), Yangbai (GB14), Taiyang (EX-HN5), Quanliao (SI18), Jiache (ST6), Dicang (ST4), Hegu (LI4), and Waiguan (TE5). Skin needling plus flash cupping was used for the treatment group, while even reducing-reinforcing needling method was used for the control group. Seven-day treatments were considered as a treatment course, and the therapeutic efficacy was analyzed after 3 courses. Result The cure rate was 65.0%in the treatment group versus 45.0% in the control group, and the difference was statistically significant (P<0.05). Conclusion Skin needling plus flash cupping can produce a significant efficacy in treating hemifacial spasm, better than ordinary needling method.
7.Correlation between two animal models of state anxiety in Kunming mice: evidence from open field test and light-dark box
Shiguang SUN ; Sheng WEI ; Peng SUN ; Mingqi QIAO ; Huiyun ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2012;21(2):101-104
ObjectiveTo explore the correlation between open field test(OFT) and light-dark box (LDB),as two animal models of state anxiety in Kunming mice.MethodsThe behavior of adult,male,Kunming mice in OFT and LDB was recorded by sequence,for five minutes,with a one-week inter-trial interval.The following parameters were evaluated:percentage of time exploring in the OFT central area( OFT-Ctime% ) ; percentage of squares crossing in the OFT central area( OFT-Ccross% ) ; total number of squares crossing in OFT(OFT-Cross) ;total number of rears in the OFT(OFT-Rear) ; number of fecal boli in OFT(OFT-FB) ; percentage of time exploring in the LDB light area( LDB-Ltime% ) ; percentage of squares crossing in the LDB light area( LDB-Lcross% ) ;and percentage of rears in the LDB light area( LDB-Lrear% ) ; transitions between two areas in LDB( LDB-Transition) ; total number of squares crossing in LDB(LDB-Croas) ; total number of rears in LDB(LDB-Rear) ; number of fecal boli in LDB (LDB-FB).Subsequently,factor analysis,cluster analysis and correlation analysis were calculated for these parameters.ResultsFactor analysis and cluster analysis of variances from either OFT or LDB revealed a three behavioral dimensions:anxiety factor ( loaded by OFT-Ctime%,OFT-Ccross% or LDB-Ltime%,LDB-Lcross%,LDB-Lrear% ),activity factor ( loaded by OFT-Cross,OFT-Rear or LDB-Transition,LDB-Cross,LDB-Rear) and emotionality factor(loaded by OFT-FB or LDB-FB).While all the variances from both OFT and LDB in combination were analyzed,it could be seen as five components:' LDB-anxiety factor ( loaded by LDBLtime%,LDB-Lcross% and LDB-Lrear% ),' OFT-anxiety factor ( loaded by OFT-Ctime% and OFT-Ccross% ),'LDB-activity factor (loaded by LDB-Transition,LDB-Cross and LDB-Rear),'OFT-LDB-emotionality factor( loaded by OFT-FB and LDB-FB) and 'OFT-activity factor (loaded by OFT-Cross and OFT-Rear).Good correlation were found between OFT/LDB factors alone and in combination,such as OFT-emotionality factor and LDB-emotionality factor(Pearson =0.383,P<0.05),LDB-anxiety factor and 'LDB-anxiety factor( Pearson =0.989,P<0.01 ),OFT-anxiety factor and 'OFT-anxiety factor( Pearson =0.934,P < 0.01 ),LDB-activity factor and 'LDB-activity factor ( Pearson =0.956,P < 0.01 ),OFT/LDB-emotionality factor and ' OFT-LDB-emotionality factor ( Pearson =0.835,P<0.01 ;Pearson =0.696,P<0.01 ),OFT-activity factor and 'OFF-activity factor( Pearson =0.926,P<0.01 ).ConclusionEither OFT or LDB comprised three behavioral dimensions:anxiety factor,activity factor and emotionality factor; however,it was difficult to establish face validity as a point-to-point concordance between OFT and LDB.Attention should be paid to heterogeneity of animal models when OFT and LDB were in combination as a behavionomics to evaluate anxiolytics in Kunming mice.
8.Research progress of selective mGluR1 antagonists.
Yilei YANG ; Wei SUN ; Cheng PENG ; Xiaoye ZHANG ; Xiaohong YANG
Acta Pharmaceutica Sinica 2011;46(10):1167-72
As an important member of metabotropic glutamate receptors (mGluR), metabotropic glutamate receptor 1 (mGluR1) plays an important role in the signal transduction of central nervous system. Selective mGluR1 antagonists can block the signaling pathway activated by mGluR1 and exert a series of physiological actions including analgesia, antianxiety, antidepression, etc. Currently, the discovery and modification of selective mGluR1 antagonists have become a hot research focus. This paper reviews the structural catalogs of selective mGluR1 antagonists and their structure-activity relationships in the last decade.
9.Choosing of the posterior lateral leg pedide skin flaps supplyed by different blood repair of foot and ankle soft tissue defect
Peng REN ; Erlin CHENG ; Wei HE ; Yan SUN
Chinese Journal of Microsurgery 2016;39(5):452-456
Objective According to the characteristics of skin defects in ankle and foot select the posterior lateral leg pedide skin flaps supplyed by different blood to repair,providing advice and reference.Methods Between January,2001 and December,2015,163 cases of soft tissue defects at the foot and ankle were treated in our department.①The sural neurovascular flap was used in 93 cases in ankle and foot defect.②The sural nerve nutritional vessel flap pediele with the perforating branch of the peroneal artery in 36 cases in ankle and foot defect.③The sural nerve nutritional vessel flap pediele with the perforating branch of the peroneal artery including sensory reconstruction in 16 cases in heel rejion defect.④Peroneal artery perforator flap in 10 cases in anterior ankle,lateral malleolus and posterior malleolus defect.⑤The use of the sural fasciocutaneous flap alonged with peroneal artery and perforators in 8 cases in dorsal foot defect.The donor site with skin graft.Results Of the 93 sural neurovascular flaps,8 had partial loss,which were cured after dressing.All the sural nerve nutritional vessel flaps pediele with the perforating branch of the peroneal artery survived.Sensory grading standard by UK Medical Research Council was used to evaluate the recovery of sensory function on the last follow-up.The sensory function recovery of heel region flaps with reconstruction of the sensory was between S0 and S1.All peroneal artery perforator flaps survived.One of the sural fasciocutaneous flap alonged with peroneal artery and perforators occurred distal epidermis,which were cured after dressing.All patients were followed up 6-50 months (mean 20 months).All patients had recoveryed walking function,and infection wound had no recurrence after surgery.Conclusion According to the location,size,severity and the injury of peripheral vascular,select the most simple,safe,minimal damage flap for the soft tissue defects at the foot and ankle.The right choice and the exact design can improve flap survival rate,and recieve good clinical results.
10.Association of chronic kidney disease and cerebral microbleeds in patients with ischemic stroke
Qing PENG ; Yining HUANG ; Wenhong LIU ; Ran LIU ; Wei SUN
Chinese Journal of Neurology 2014;47(11):747-751
Objective To investigate the association between the presence of cerebral microbleeds and chronic kidney disease in patients with ischemic stroke.Methods Patients with ischemic stroke within 1-6 months were consecutively recruited.Cranial MRI was taken within two weeks after recruitment.Cerebral microbleeds were assessed using Microbleed Anatomical Rating Scale on gradient echo MRI.Demographics including sex,age and risk factors were obtained.Chronic kidney disease was defined and classified according to National Kidney Fundation-Kidney Disease Outcome Quality Initiative Guideline.Glomerular filtration rate (GFR) was estimated by using the abbreviated Modification of Diet in Renal Disease equation.Results Of the 636 patients included,mean age was (59.8 ± 10.1) years,435 (68.4%) were male.Sixty-six had decreased estimated GFR (eGFR; < 60 ml · min-1 · 1.73 m-2).Two hundred and one (31.6%) patients had cerebral microbleeds,which were most commonly located in deep or infratentorial location (133/201,66.2%).The presence of cerebral microbleeds was much higher in patients with decreased eGFR than the others (48.5% (32/66) vs 29.6% (169/570),x2 =9.709,P =0.002).Age,history of hypertension and decreased eGFR were associated with the presence of cerebral microbleeds in univariate analysis.In multivariate analysis,decreased eGFR was independently associated with the presence of cerebral microbleeds in deep or infratentorial location (OR =1.457,95% CI 1.044-2.034,P =0.027),but not associated with the presence of cerebral microbleeds in pure lobe.Conclusion Impaired kidney function is associated with the presence of cerebral microbleeds in deep or infratentorial regions in patients with ischemic stroke.