1.Asymmetric dimethylarginine and neonatal-related diseases
International Journal of Pediatrics 2010;37(4):399-402
Asymmetric dimethylarginine(ADMA) is an endogenous inhibitor of nitric oxide synthases(NOS),which is a risk marker of cardiovascular endothelial dysfunction.Recent studies found that ADMA was a predictor not only for acute cardiovascular disease,but also for critical illness and mortality.Studies have found that exogenous ADMA altered lung function and induced apoptosis in animal experiments and vitro experiments.The levels of plasma ADMA significantly increased in children with hypoxia,PPHN,brain damage,and preterm infants who required mechanical ventilation.ADMA could be a independent risk factor to predict neonatal complications and death.
2.Influence of LNG-IUS placement on endometrial thickness, recurrence rate and complications of patients with endometrial polyps and moderate anemia after TCRP
China Journal of Endoscopy 2017;23(8):77-80
Objective To investigate the influence of LNG-IUS placement on endometrial thickness, recurrence rate and complications of patients with endometrial polyps and moderate anemia after TCRP. Methods 140 patients with endometrial polyps and moderate anemia were chosen from January 2014 to January 2016 and randomly divided into control group (70 patients) with TCRP used alone and observation group (70 patients) with LNG-IUS placement after TCRP; the endometrial thickness, hemoglobin levels and PBAC score before and after treatment, the recurrence rate and the complication incidence of both groups were compared. Results The endometrial thickness after treatment of observation group were significantly less than control group before the treatment (P < 0.05). The hemoglobin levels and PBAC score after treatment of observation group were significantly better than control group before the treatment (P < 0.05). The recurrence rate of observation group were significantly lower than control group (P < 0.05). There was no significant difference in the complication incidence between the two groups (P > 0.05). Conclusion LNG-IUS placement in treatment of patients with endometrial polyps and moderate anemia after TCRP can efficiently reduce the endometrial thickness, decrease the uterine bleeding amount, prevent the long-term recurrence and not increase the complications incidence.
3.Effect of fructose sodium diphosphate and alpha-lipoic acid on diabetic peripheral neuropathy
Yufeng CHEN ; Yufen SHEN ; Huijuan ZHANG
Clinical Medicine of China 2010;26(3):292-294
Objective To assess the effect of fructose sodium diphosphate and alpha-lipoic acid on diabetic peripheral neuropathy. Methods Sixty-six patients with diabetic peripheral neuropathy were randomly divided into two groups, additional to the regular treatment to control blood glucose, 34 patients in the treatment grouptreated with fructse sodium diphosphate 10 g and alpha-lipoic acid 0.45 g daily through intravenous drip for two weeks (3 patients dropped out due to un-tolerance), 32 patients in the control group treated with alpha-lipoic acid 0.45 g dai-ly through intravenous drip for two weeks. All patients were examined on the improvement of symptoms, motor and sensory nerve conduction velocity of the median nerve and nervus peroneus communis before and after the treatment. Results After treatment for two weeks, the overall effect rate in the treatment group was 93.55 % (28/31), which was significantly higher than that in the control group(68.75%,22/32) (P < 0.05). In the treatment group, the motor nerve conduction velocity for the median nerve and nervus peroneus communis was 47.7 (SD:3.8) m/s and 41.6 (SD: 3.3) m/s after treatment, which was significantly higher than that before treatment (42.5 [SD:2.5] and 36.0[SD:2.8] m/s,respectively) (P <0.05). In the control group, the motor nerve conduction velocity for the median nerve and nervus peroneus communis was 43.4 (SD: 2.0) m/s and 39.6 (SD: 3.3) m/s after treat-ment, which was significantly higher than that before treatment (41.9 [SD16.0] and 36.2 [SD: 1.9] m/s, respec-tively) (P < 0.05). In the treatment group,the sensory nerve conduction velocity for the median nerve and nervus peroneus communis was 40.3 (SD: 1.8) m/s and 34.1 (SD: 2.3) m/s after treatment, which was significantly higher than that before treatment (35.2 [SD:2.3] and 28.8 [SD:2.5] m/s,rospectively) (P <0.05). In the control group,the sensory nerve conduction velocity for the median nerve and nervus peroneus communis was 37.7 (SD:1.7) m/s and 30.8 (SD:2.6) m/s after treatment,which was significantly higher than that before treatment (34.8 [SD :3.1] and 27.8 [SD :2.4] m/s, respectively) (P < 0.05). Furthermore, the improvements in the treat-ment group was significantly higher than those of the control group (P < 0.01). Conclusions Fructse sodium si-phosphate combined with alpha-lipoic acid is more effective to treat diabetic peripheral neuropathy than alpha-lipoic acid only.
4.Influence of RNA interference-induced repression of p53 expression on senescence in human skin fibroblasts
Wenqi CHEN ; Huijuan XU ; Zhigang BI
Chinese Journal of Dermatology 2012;(11):799-802
Objective To establish a cell line with repressed expression of p53 by transfecting a plasmid construct expressing short hairpin RNA(shRNA)targeting p53 into human skin fibroblasts(HSFs),and to evaluate the effect of repression of p53 expression on the senescence in HSFs.Methods The eukaryotic expressing plasmid pGCsi-p53 containing shRNA targeting p53 gene was transfected into HSFs with lipofectamine.Subsequently,the cells were selected by G418,and resistant cell clones were chosen and expanded.Reverse transcription-PCR and real time fluorescence-based quanitative PCR were performed to determine the expression of p53 gene,and Western blot to detect the expression of p53 protein in HSFs.The senescence in HSFs was evaluated by SA β-gal staining,and cell proliferation by methyl thiazolyl tetrazolium(MTT)assay.Results A HSF clone with repressed expression of p53 was established successfully.The expressions of p53 mRNA and protein were downregulated in transfected HSFs compared with untransfected HSFs(0.09 ± 0.03 vs.0.32 ± 0.04,0.11 ± 0.04 vs.0.84 ± 0.05,both P < 0.01).The percentage of senescent cells was 13.47% ± 1.01% in the transfected HSFs,significantly lower than that in untransfected HSFs(18.10% ± 0.66%,P < 0.05).As MTT assay showed,the proliferation was accelerated in transfected HSFs compared with untransfected HSFs(P < 0.05).Conclusions The repression of p53 expression decelerates the senescence in HSFs,but promotes the proliferation of HSFs.
5.Association of peripheral CD4+ CD25+ CD127low/-regulatory T cells and liver pathology in hepatitis B virus-infected individuals
Huijuan CHEN ; Shousong ZHAO ; Jiu JIANG
Chinese Journal of Infectious Diseases 2013;31(10):603-607
Objective To explore the expression level of CD4+ CD25+ CD127low-regulatory T cells (Treg) in the peripheral blood of hepatitis B virus (HBV)-infected individuals,and its association with liver pathology.Methods Thirty-five HBV-infected individuals and 20 healthy controls were enrolled.The frequencies of peripheral blood CD4+ CD25+ CD127low/-Treg were detected by flow cytometry.HBV-related serological tests as well as ultrasound-guided liver biopsies were performed in HBV-infected individuals.The two groups were compared by t test.Spearman and Pearson correlation analyses were performed.Results The alanine aminotransferase (ALT) level of HBV-infected individuals was (34.57 ± 15.36) U/L,with 25 subjects of ALT<40 U/L.Twenty subjects were hepatitis B e antigen (HBeAg) positive,and 15 were HBeAg negative.The frequency of the peripheral blood CD4+ CD25+ CD127low/-Treg in HBV-infected individuals was (5.59 ±1.50)%,which was significantly higher than that in healthy controls [(4.85±0.95) % ; t=2.191,P=0.033].The level of peripheral blood CD4+ CD25-CD127low/-Treg was positively correlated with HBV viral load (r=0.495,P=0.003).Thirty-one subjects had liver inflammatory score ≤2,with a peripheral blood CD4+ CD25+ CD127low/-Treg level of (5.80 ± 1.44) %,which was significantly higher than that of the rest 4 subjects who had liver inflammatory score >2 [(4.00±0.77)%; t=2.425,P=0.021].Twenty-four subjects had liver fibrosis score <2,with a peripheral blood CD4+ CD25+ CD127low/-Treg level of (6.00±1.44) %,which was significantly higher than that of the rest 11 subjects who had liver fibrosis score ≥ 2 [(4.70 ± 1.24)%; t =2.559,P=0.015].The expression of CD4 + CD25 +CD127low/-Treg in peripheral blood was inversely correlated with liver inflammation (r=-0.539,P=0.001) and fibrosis (r =-0.488,P =0.003) in HBV-infected individuals.Conclusions CD4+ CD25+ CD127low/-Treg is associated with chronic condition and liver damage of hepatitis B.It may play an important role in occurrence,development and prognosis of the disease.
6.Assessment of myocardial performance in fetuses by using Tei index
Qian CHEN ; Xiaofeng SUN ; Huijuan LIU
Chinese Journal of Obstetrics and Gynecology 2001;0(06):-
0.05). Conclusion Tei index may be useful, convenient and reliable in fetal cardiac function assessment.
7.Value of pulse-taking in syndrome differentiation of liver diseases
Huijuan CHEN ; Lingling ZHU ; Shanghua LIANG
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(06):-
Pulse-taking is the most specific diagnostic method of TCM.Its significance has been recognized by ancient and modern doctors.However,at present the application and spread of pulse-taking is limited.In this paper,the author made detailed explorations of literatures and studies the value of pulse condition in guiding syndrome differentiation of liver diseases.The study shows abnormal pulse in left guan and taut pulse in cunkou location both suggest the liver is disordered.We can judge the location of diseases through pulse condition.This exploration shows pulse-taking plays important role in syndrome differentiation.But there is one thing should be paid more attention,pulse condition should be integrated with other symptoms,that will be reliable in guiding diagnosis.
8.Differential expression of microRNAs in transplanted kidney undergoing chronic rejection
Weiguo SUI ; Huijuan LAN ; Huaizhou CHEN
Medical Journal of Chinese People's Liberation Army 2001;0(12):-
Objective To investigate the differential expression of microRNAs(miRNAs) in transplanted kidney undergoing chronic rejection by the technique of RNA microarray.Methods Four biopsy specimens from transplanted kidney undergoing chronic rejection were harvested as test group(CR),and 3 biopsy specimens were obtained from normal renal cortex as normal control group(NC).Total RNA of each sample was extracted using Trizol reagent.miRNAs were isolated and differential expression of miRNAs were screened by miRNA array analysis.The results of miRNA array were validated by RT-PCR.The quantity and quality of all the RNA samples were checked by gel electrophoresis and absorbance at A260/280,respectively.Results It was confirmed that the isolated RNA was of appropriate quality.The results of miRNA array analysis showed that there were 63 differential expression miRNAs in CR group,of which 35 were up-regulated and 28 down-regulated.There were 9 differential expression miRNAs which distributed in 3 gene clusters: 14q32.31,22q11.21 and xq27.3.The miRNAs hsa-miR-637,hsa-miR-648 and hsa-miR-516-5p were randomly selected for relative quantification by real-time PCR.It was showed that the expression ratios of hsa-miR-637,hsa-miR-648 and hsa-miR-516-5p in AR/NC,when detected by RT-PCR,were 0.034,2.670 and 7.846,while the ratios were 0.035,2.660 and 7.857 when analyzed by miRNAs array.The results from two methods were not significantly different,so the method of miRNAs array was reliable.Conclusions It is notable that the differential expression of miRNAs existed in the transplanted kidney undergoing chronic rejection.miRNAs might be helpful in protecting the patients undergoing kidney transplantation against chronic rejection.
9.Effects of artificial liver plasma exchange on cytokines in patients with liver failure
Liangjie ZHANG ; Huijuan CHEN ; Shousong ZHAO
Journal of Clinical Hepatology 2015;31(4):578-581
Objective To observe the effect of plasma exchange (PE)therapy for removing serum interleukin-6 (IL-6),tumor necrosis factor alpha (TNFα),and interferon gamma (IFNγ)in patients with liver failure,and to assess the value of artificial liver support system in the treatment of liver failure.Methods The study included 36 patients with liver failure who were hospitalized in the First Affiliated Hospi-tal of Bengbu Medical College from February 2012 to February 2013.Blood samples were collected before PE and the next morning after mul-tiple treatments.Plasma TNFα,IL-6,and IFNγlevels were measured by ELISA.Between-group comparison of measurement data before and after treatment was made by independent-samples t test,and comparison of mean values between groups was made by analysis of vari-ance.Results All the 36 liver failure patients had significantly lower levels of TNFα(381.23 ±190.57 ng/L vs 274.12 ±212.30 ng/L,P<0.05),IL-6 (77.9 ±83.09 ng/L vs 54.8 ±63.32 ng/L,P<0.05),and IFNγ(534.65 ±471.19 ng/L vs 259.65 ±312.26 ng/L,P<0.05)after treatment than before treatment.According to the severity of clinical manifestations,the patients with subacute or acute-on-chronic (subacute)liver failure were divided into early stage,middle stage,and advanced stage groups.There were significant differ-ences in IL-6 and TNFαdecreases between the early stage,middle stage,and advanced stage groups (P<0.05).IFNγdecrease signifi-cantly differed between the early stage or middle stage group and advanced stage group (P<0.05),but not between the former two groups (P>0.05).After PE therapy,29 out of 36 liver failure patients recovered well,while the remaining 7 patients deteriorated.The recovered group had significantly greater decreases in TNFα(122.58 ±57.64 ng/L vs 42.45 ±19.86 ng/L,P<0.05),IL-6 (26.93 ±7.25 ng/L vs 6.71 ±3.55 ng/L,P<0.05),and IFNγ(284.06 ±94.31 ng/L vs 217.47 ±45.76 ng/L,P<0.05)than the deteriorated group.The response rates of patients with acute,subacute,acute -on -chronic,and chronic liver failure were 66.67%,85.71%,86.36%,and 50%,respectively.Conclusion Continuous artificial liver PE therapy can effectively remove pro-inflammatory cytokines from plasma and thus improve the clinical outcomes of patients with liver failure.
10.Research progression of AMPK in adjuvant treatment strategy of breast cancer
Tao CHEN ; Huijuan ZENG ; Shaohua WANG
Journal of Medical Postgraduates 2016;29(9):993-998
Activated protein kinase ( AMPK) , an important energy receptor , plays a very important role in regulating organ-ism and the energy metabolism of the cell .AMPK has complex relationship with survival of different types of breast cancer cells .Ac-cording to different conditions , AMPK may exist both anti or promoting effect on tumor .In this review , we summarize the relationship between AMPK and breast cancer related signal pathways , AMP and breast cancer endocrine therapy , breast cancer chemotherapy , ra-diotherapy for breast cancer , treatment of triple negative breast cancer and multi drug resistance of the relationship , we also expound some drugs related to AMPK and used in clinical setting .