1.Research on the relationship between the expression of estrogen receptor, progesterone receptor and epidermal growth factor receptor in uterine leiomyoma and the recurrence after myomectomy
Xiaoping NI ; Lihong LEI ; Liyan LI
Chinese Journal of Postgraduates of Medicine 2012;35(6):25-27
Objective To investigate the relationship between the expression of estrogen receptor (ER),progesterone receptor(PR)and epidermal growth factor receptor(EGFR)in uterine leiomyoma and the recurrence after myomectomy.Methods Eighty cases underwent myomectomy were enrolled in this study.ER,PR and EGFR expression in uterine leiomyoma tissue and normal myometrium tissue were examined by immunohistochemical technique.All the patients were followed up regularly after myomectomy.Results The positive expression rate of ER,PR and EGFR in uterine leiomyoma tissue were significantly higher than those in normal myometrium tissue[88.8%(71/80)vs.48.8%(39/80),92.5%(74/80)vs.30.0% (24/80),86.2%(69/80)vs.57.5%(46/80),P < 0.05].The recurrence rates in ER,PR and EGFR positive expression patients were significantly higher than those in negative expression patients[42.3%(30/71)vs.22.2%(2/9),41.9%(31/74)vs.16.7%(1/6),42.0%(29/69)vs.27.3%(3/11),P < 0.05].The recurrence times in ER,PR and EGFR positive expression patients were significantly shorter than those in negative expression patients(P <0.05).The expression of EGFR had positive correlation with ER and PR(r =0.837,0.702,P < 0.05).Conclusions The recurrence of uterine leiomyoma may have correlation with high expression of ER,PR and EGFR in uterine leiomyoma.
2.Role of NO signal in ABA-induced phenolic acids accumulation in Salvia miltiorrhiza hairy roots.
Lihong SHEN ; Jiahui REN ; Wenfang JIN ; Ruijie WANG ; Chunhong NI ; Mengjiao TONG ; Zongsuo LIANG ; Dongfeng YANG
Chinese Journal of Biotechnology 2016;32(2):222-230
To investigate roles of nitric oxide (NO) signal in accumulations of phenolic acids in abscisic.acid (ABA)-induced Salvia miltiorrhiza hairy roots, S. miltiorrhiza hairy roots were treated with different concentrations of sodium nitroprusside (SNP)-an exogenous NO donor, for 6 days, and contents of phenolic acids in the hairy roots are determined. Then with treatment of ABA and NO scavenger (2-(4-carboxy-2-phenyl)-4,4,5,5-tetramethylimidazoline-1- oxyl-3-oxide, c-PTIO) or NO synthase inhibitor (NG-nitro-L-arginine methyl ester, L-NAME), contents of phenolic acids and expression levels of three key genes involved in phenolic acids biosynthesis were detected. Phenolic acids production in S. miltiorrhiza hairy roots was most significantly improved by 100 µmoL/L SNP. Contents of RA and salvianolic acid B increased by 3 and 4 folds. ABA significantly improved transcript levels of PAL (phenylalanine ammonia lyase), TAT (tyrosine aminotransferase) and RAS (rosmarinic acid synthase), and increased phenolic acids accumulations. However, with treatments of ABA+c-PTIO or ABA+L-NAME, accumulations of phenolic acids and expression levels of the three key genes were significantly inhibited. Both NO and ABA can increase accumulations of phenolic acids in S. miltiorrhiza hairy roots. NO signal probably mediates the ABA-induced phenolic acids production.
Abscisic Acid
;
pharmacology
;
Benzofurans
;
metabolism
;
Free Radical Scavengers
;
pharmacology
;
Hydroxybenzoates
;
metabolism
;
Nitric Oxide
;
metabolism
;
Phenylalanine Ammonia-Lyase
;
metabolism
;
Plant Roots
;
metabolism
;
Salvia miltiorrhiza
;
metabolism
;
Tyrosine Transaminase
;
metabolism
3.Empirical study for women and children institutions of infant mental health
Zongshun JIANG ; Liuying LIU ; Hong LU ; Lihong LIAO ; Haiyan NI ; Shunli TANG ; Long WANG
Chinese Journal of General Practitioners 2013;12(11):901-903
The samples of experimental and control groups were obtained by 1 ∶ 1 matching method and divided into development (242 pairs) and sign (156 pairs) groups.Through a 10-month group and case type intervention,Gesell test was performed for 5 zone development quotients of large motor,fine motor,adaptability,speech and personal-social to determinate the effectiveness of interventions.Before intervention,t values of the development group were 1.07,1.42,0.78,0.62 and 1.67 while those of sign group-1.48,-1.96,1.82,1.78 and-1.73 respectively.The inter-group comparison of various developmental quotient differences had no statistical significance (P > 0.05).After intervention,t values of the development group were 9.85,8.92,3.57,11.21 and 9.30 for inter-group comparison and-31.65,-36.94,-46.26,-37.56 and-49.85 for intra-group comparison.The results of sign group were 10.91,9.61,10.75,12.01 and 14.36 for inter-group comparison and-23.20,-31.75,-44.94,-33.58 and-54.58 for intra-group comparison.Between intra-group and inter-group,the comparison of the developmental quotient differences had statistical significance (P < 0.01).In two experimental groups,the post-intervention developmental quotients in 5 zones are better than those pre-intervention levels.It shows that preventive intervention of infant mental health is effective.
4.Effects of fertilization methods and sperm sources on the developmental capacity of surplus embryos
Nan LI ; Yongmei TANG ; Mingming LIANG ; Lihong WEI ; Ni TANG ; Jihong WEI
Chongqing Medicine 2016;(3):366-368,371
Objective To analyze the effects of fertilization methods and sperm sources in intra‐cytoplasmic sperm injection (ICSI) on the developmental capacity of surplus embryos .Methods A retrospective study was carried out to compare the blasto‐cyst rate of the surplus embryos from 2 697 patients .According to the fertilization methods ,the embryos were divided into IVF group and ICSI group .According to sperm sources ,the ICSI group was divided into ejaculated group and testicular sperm group . The rates of blastocyst formation and good quality blastocysts were compared between different fertilization methods and sperm sources .Results There were 8 426 embryo developed in 2 697 patients .The blastocyst formation rate of surplus embryos was high‐er in the IVF group(n=1 048 ,53 .18% ) than that in the ICSI group(n=1 378 ,49 .27% ) ,but with no statistically significant differ‐ent(P> 0 .05) .The rates of blastocyst were not statistically significant different between the IVF group and in the rescue ICSI group(P>0 .05) .The rates of blastocyst were not statistically significant different between the ejaculated group and the testicular sperm group(P>0 .05) .Conclusion There were not statistically significant different of the rate of blastocyst between different fer‐tilization methods and sperm sources in ICSI .
5.Histological classification and clinico-pathological correlation study for mesial temporal sclerosis
Qingyuan RUAN ; Haichun NI ; Yueshan PIAO ; Dehong LU ; Tao YU ; Dongsheng XIAO ; Lifeng WEI ; Lihong ZHAO
Chinese Journal of Neurology 2012;(12):874-878
Objective To study a histopathological classification system for hippocampal cell loss in patients suffering from mesial temporal lobe epilepsy.Methods Fifty-one surgically resected specimens were microscopically examined with respect to neuronal cell loss in hippocampal subfields CA1—CA4.Clinical data including age at first seizure,with or without initial precipitating injuries (IPIs),latecy,epilepsy duration,Engel score of half and one year after surgery were collected to analyse the clinical characteristics between different pathological types.Eight additional hippocampal specimens obtained from neurologically healthy autopsies served as controls.Results (1)Five distinct patterns were recognized within a consecutive cohort of anatomically well-preserved surgical specimens.Type 1 a (21/51,41.18 %):severe cell loss in CA1 and moderate neuronal loss in all other subfields excluding CA2; Type 1b(18/51,35.2%):severe cell loss in all sectors; Type 2(9/51,17.65%):severe neuronal loss restricted to sector CA1 ;Type 3 (1/51,1.96%):severe neuronal loss restricted to the hilar region; no mesial temporal sclerosis (2/51,3.92%):a group comprised hippocampi with neuronal cell densities not significantly different from age matched autopsy controls.(2)The patients of type 1 a and 1 b had younger age of first onset,longer latency and duration,more frequency of IPIs,the proportion of ourrence of febrile seizures in type 1a was 10/19,type 1b was 7/16,type 2 was 4/7,type 3 was 0 (x2 =11.790,P =0.019).(3) The patients of type 1a and 1 b had better postsurgical outcome.Conclusion Type 1 is the most common type of mesial temporal sclerosis,which have better postsurgical outcome than the other 3 types.
6.CCK-8 upregulates B7.1 and B7.2 expressions and enhances the costimulatory activity of murine peritoneal macrophages
Fenghua ZHANG ; Shujin LI ; Bin CONG ; Zhengmao ZHANG ; Guijun ZHU ; Chunling MA ; Jun CONG ; Ning LIU ; Zhiyu NI ; Lihong FU
Chinese Journal of Pathophysiology 1986;0(04):-
AIM: To investigate in vitro effects of cholecystokinin octapeptide(CCK-8) on the expressions of B7.1 and B7.2 and the costimulatory activity of T lymphocytes in unstimulated macrophages.METHODS: Mouse peritoneal macrophages were isolated and incubated with CCK-8(10-12-10-6 mol/L) for indicated time.The B7.1 and B7.2 expressions of murine peritoneal macrophages were analyzed by flow cytometry.CD4+T cells were isolated from mouse spleen using immunomagnetic beads,and cultured with 1/4 numbers of macrophages which were pretreated with CCK-8 and/or anti-B7.1 antibody,anti-B7.2 antibody,CCK1R antagonist CR1409,CCK2R antagonist CR2945 for 24 h.ConA was added into the culture medium to stimulate CD4+T cell proliferation.The proliferation was determined by measuring -TdR incorporation in a ?-scintillation counter.RESULTS: B7.1 and B7.2 expressions and costimulatory activity of peritoneal macrophages were enhanced by CCK-8 in a dose-dependent manner,and the maximal effects occurred at the concentrations of 10-9 mol/L to 10-7 mol/L.Anti-B7.2 antibody,but not anti-B7.1 antibody,reduced the modulatory role of CCK-8 on costimulatory activity.Both CR1409 and CR2945 reversed the effect of CCK-8 on costimulation,and the role of CR1409 was more significant.CONCLUSION: CCK-8 enhances macrophage costimulatory activity by upregulating B7.2 expression,which is mediated by CCK1R and CCK2R.CCK1R might be the major receptor responsible for the modulation of CCK-8 on costimulation.
7.Comparision between distally-based peroneal artery perforator-plus and posterior tibial artery perforator-plus fasciocutaneous flap for reconstruction of the distal lower leg,ankle and foot
Zhaobiao LUO ; Guohua LV ; Zhonggen DONG ; Jiangdong NI ; Jianwei WEI ; Lihong LIU
Chinese Journal of Microsurgery 2018;41(1):22-26
Objective This study is to compare flap-viability-related complications, coverage reach, recon-struction outcomes and donor-mobidities between distally-based peroneal artery perforator-plus fasciocutaneous (DPAPF)flap and distally-based posterior tibial artery perforator-plus fasciocutaneous(DPTAPF)flap for recon-struction of soft-tissue defects over the distal lower leg, ankle and foot, and thus provide evidence for selection of the flaps. Methods Between April, 2002 and February, 2012, 216 and 59 patients underwent the reconstructions with DPAPF flaps(peroneal group)and DPTAPF flaps(posterior tibial group)respectively. We subdivided the distal lower leg, ankle and foot into 12 subregions. In all the patients, flap-viability-related complications and its potential risk factors(including age,sex,etiology,location of top edge,location of pivot point,length and width of both the skin is-land and adipofascial pedicle, length-width ratio, and total length), coverage reach(the subregion in which the most distal part of the reconstructed defect lies),duration of flap elevation and hospital stay were compared between the two groups. In patients with at least 3 months postoperative follow-up, comparative study of reconstruction outcomes, pa-tient's satisfaction with flap appearance and donor-site morbidities were performed between the groups. Results Partial necrosis rate in the peroneal of the posterior tibial group were 12.0 percent versus 20.3 percent,respectively(P> 0.05). Marginal necrosis and overall complication (including partial and marginal necrosis)rates in the peroneal group(1.9 percent and 13.9 percent, respectively)were significantly lower than those in the posterior tibial group (8.5 percent and 28.8 percent,respectively)(P<0.05).Incidence of partial necrosis of the flaps for the defects over subregions 7 to 10 in the peroneal group(7 of 41)was significantly lower than that in the posterior tibial group(2 of 2).There was no difference in reconstruction outcomes and patient's satisfaction with flap appearance in both groups(P >0.05).Incidences of hypertrophic scar,itching and pigmentation at the donor site were significantly lower in the peroneal group(P<0.05). Conclusion DPAPF flap is superior to DPTAPF flap in reliability,safe coverage reach and less donor-site morbidities.The former is recommended as the first choice when local pedicle flaps are considered to recon-struct soft-tissue defects over the distal lower leg,ankle and foot.
8.Telomere length in cumulus cells as a potential biomarker of embryo quality and pregnancy rate
Nan LI ; Ni TANG ; Lihong WEI ; Xinlin LI ; Zhong LIN
The Journal of Practical Medicine 2018;34(12):2019-2022,2026
Objective To investigate the relationship of relative telomere length in cumulus cells(CCs) with oocytes at different mature stages and the outcome of intracytoplasmic sperm injection and embryo transfer (ICSI-ET). Methods Oocyte-cumulus complex samples were collected from 92 patients undergoing ICSI-ET and patients were divided into group A including 55 women≤35 years and group B 37 women>35 years. The embryonic development ability and the result of clinical pregnancy were recorded in different groups. DNA was extracted from CCs and assessed for telomere length by real-time quantitative PCR. Results In ICSI-ET,the relative telomere length of CCs gradually shortened with the age.There was a significantly longer telomere length of CCs in the preg-nant subgroup than that in the non-pregnant subgroup in the two groups(P < 0.05). Conclusion The telomere length of CCs may be associated with the pregnancy outcome in ICSI-ET.
9. Effects of airway management team in the treatment of severely mass burn patients combined with inhalation injury
Dan SUN ; Peng ZHAO ; Jiaying NI ; Jingjing SUN ; Yingwei REN ; Fang WANG ; Lihong ZHU
Chinese Journal of Burns 2018;34(6):354-359
Objective:
To explore and analyze the effects of airway management team (AMT) in the treatment of severely mass burn patients combined with inhalation injury.
Methods:
The clinical data of 58 severely burned patients combined with inhalation injury hospitalized in our unit from January 2012 to August 2014, conforming to the inclusion criteria, were retrospectively analyzed. According to whether airway management was implemented by AMT or not, patients hospitalized from January 2012 to July 2014 were divided into control group (
10.Comparative study of hyperuricemia induced by different factors in mouse models
Jianyu NI ; Ningning BAI ; Xianli LIU ; Lihong GONG ; Qiyang SHOU
Chinese Journal of Comparative Medicine 2024;34(3):68-74
Objective To investigate whether a stable and reliable hyperuricemia model can be established in mice with an ICR background via a triple-modeling method(combined potassium oxazine,hypoxanthine,and 30%yeast paste),and to evaluate the effect of the positive drug febuxostat on the model.Methods A hyperuricemia model of ICR mice was established using a single drug or double-or triple-drug combinations.Serum uric acid and creatinine concentrations,xanthine oxidase(XOD)and urate oxidase(UOX)activity,and uric acid transporter(URAT)1,glucose transporter(Glut)9,anion transporter(OAT)1,and ATP-binding box subfamily G member(ABCG)2 mRNA levels were detected to evaluate whether the hyperuricemia model was formed successfully.Results The serum uric acid levels of ICR mice were not significantly changed by potassium oxazine alone,as they showed an increase but were not significantly different to those of the 30%yeast paste diet or hypoxanthine combined groups.Serum uric acid levels in the triple administration group were significantly increased at 7 days(P<0.01),while XOD enzyme activity had increased(P<0.01)and UOX enzyme activity decreased(P<0.001)at the same timepoint.There were increased expression levels of URAT1 and Glut9(P<0.05,P<0.001),and decreased expression levels of OAT1 and ABCG2(P<0.001).During dynamic monitoring,the blood uric acid levels of triple administration-induced ICR mice peaked at 7 days.In addition,triple administration-induced hyperuricemia in ICR mice was sensitive to the positive drug febuxostat,which caused a significant decrease in blood uric acid levels(P<0.001).Conclusions A hyperuricemia model in ICR mice can be stably induced by triple administration for 7 days.