1.Effects of Laurencia terpenoids on the levels of IL-6 and TNF-?in H_(22) mice
Chinese Journal of Marine Drugs 1994;0(04):-
Objective To study the effects of Laurencia terpenoids(LET)on the levels of IL-6 and TNF-?in H_(22) mice.Methods 1.The content of total terpenoids in LET was detected by RP-HPLC.2.The mice were randomly divided into five groups:the model group,the LET groups(25,50,100mg?kg~(-1)?d~(-1)) and the Cyclophosphamide(CY) group,and transplant tumor model of hepatoma 22(H_(22)) was established.The next day four groups of animal(except the model group) were treated with different dosage of LET and CY(ig) and executed after 15 days.The tumors were weighed and the tumor inhibition rates were calculated.Furthermore the levels of IL-6 and TNF-?in serum were determined by RIA.Results In vivo, the increases of H_(22) tumor weight in LET groups were slower than that in model group.The tumor inhibition rates were 27.5%,34.9%and 41.4%correspondently.Mid and high-dose groups of LET could increase the levels of IL-6 and TNF-?.Conclusion LET could inhibit the increase of H_(22) tumor weight.The mechanism may be related to enhancing the level of cytokine including IL-6 and TNF-?.
2.Epidemiological Investigation of Urinary Incontinence Among Adult Women in Two Communities in Kunming
Journal of Kunming Medical University 2016;37(11):70-75
Objective To investigate the incidence and risk factors of urinary incontinence of the adult women in two communities in Kunming so as to obtain basic epidemiological data,draw epidemiological regularity of adult women urinary incontinence in this two communities.Methods International Consultation on Inconvenience Questionnaire Short Form (ICQ-SF) survey was conducted among adult women Shuanglongqiao community and Zongshuying community during April 2012 to April 2013.Results (1) The prevalence rate of urinary incontinence among adult women was 16.84%.The constituent ratio of stress urinary incontinence was 42.6%,mainly with mild occurrence.Women over 41 years old were found with moderate and severe urinary incontinences.(2) The prevalence of urinary incontinence increased with age,especially the middle-aged and elderly women.The incidence was related to educational background,occupation,marriage and pregnancy status,and history of pelvic surgery (P< 0.05).Conclusion Urinary incontinence affects middle-aged and elderly women.There are differences of the prevalence of urinary incontinence among adult women with different nationality,occupation,educational background,marriage and pregnancy status,and history of pelvic surgery.
3.Effect of baicalin on inflammatory factors and oxygen free radical metabolism in patients with traumatic shock
Junda LIU ; Zhen LAI ; Kewei ZHENG
Chinese Journal of Primary Medicine and Pharmacy 2014;21(11):1617-1618
Objective To investigate the effect of baicalin on inflammatory factors and oxygen free radical metabolism in patients with traumatic shock.Methods 38 patients with traumatic shock were treated with baicalin 200mg intravenous injection when admitted to hospital.Before and 1 h after treatment,TNF-α,IL-6,IL-8,MDA and SOD were measured in blood.Results Compared with before treatment,TNF-,IL-6,IL-8,and MDA levels were decreased after treatment (t =7.32,6.12,20.21,16.10,all P < 0.05),while SOD activity was significantly increased (t =1.69,P < 0.01).Conclusion Baicalin could inhibit the production and release of inflammatory factors TNF-α,IL-6,IL-8 in patients with traumatic shock,reduce the damage of oxygen free radicals to the cells.Early treatment with baicalin had protective effect on patients with traumatic shock.
4.Progress in treatment of acute kidney injure with adipose-derived mesenchymal stem cells
Wei ZHANG ; Kewei MA ; Junfeng LIU
Journal of Chinese Physician 2016;18(4):627-630
Cell-based therapy and regenerative medicine offer a paradigm shift in regard to various diseases causing tissue or organ damage.Recently,many authors have focused their atte(n)tion on adipose-derived mesenchymal stem cells (ADMSCs) for their capacity to differentiate into many cell lineages.Acute kidney injury (AKI),as a common emergency,has high morbidity rate and relatively limited treatment.This review will summarize the mechanism of ADMSCs in treatment of acute kidney injury,and hope to lay a foundation for future research.
5.Improvement of osseointegration of titanium dental implant by modified sandblasting surface treatment
Dehua LI ; Baolin LIU ; Jingcai ZOU ; Kewei XU
Journal of Practical Stomatology 2000;0(06):-
Objective:To study the effects of the modified sandblasting surface treatment on the bone implant interfacial shear strength of titanium dental implant.Methods:Titanium implants with smooth surface or modified sandblasted surface were inserted into femoral medialis condyli of dogs at random.The samples of implant with surrounding bone tissue were prepared in blockes and the shear strength of the interface was measured with Instron electronic pull out tester 2,4 and 12 weeks after operation. The modified sandblasted surface of the implant was observed with SEM and X ray spectroscopy 12 weeks after operation.Results:2 and 12 weeks after implantation the shear strength(MPa) between bone tissue and implants with modified sandblasted surface was 4.28?0.88 and 7.54?0.34 respectively,that between bone tissue and implants with smooth surface 0.09?0.08 and 1.43?0.46 respectively.SEM and X ray spectroscopy observation revealed that the most parts of the sandblasted surface of the implants were covered by bone tissue and bone matrix deposited into the pores created by the acid etching.Conclusion:The rough surface of titanium dental implant created by the modified sandblasting surface treatment can enhance the shear strength between bone tissue and implant.
6.Effects of atorvastatin on cardiovascular remodeling in renovascular hypertensive rats
Xuejuan ZHANG ; Li SONG ; Kewei LIU ; Mei LUO ;
Chinese Journal of Geriatrics 2001;0(01):-
Objective To investigate the effects of atorvastatin on cardiovascular remodeling in renovascular hypertensive rats. Methods The 2-kindey,1-clip hypertensive rats(2K1C,Goldblatt) were prepared with Sprague-Dawley rat.SD rats were randomly divided into three groups: normal control rats,hypertensive rats and hypertensive rats treated with atorvastatin(2 mg?kg~(-1)?d~(-1)).After 6 weeks treatment,systolic blood pressure(SBP) was measured using the tail-cuff method.The plasma concentration of angiotensin Ⅱ and renin activity were determined by radioimmunoassay.The heart weight,the ratio of left ventricular weight to body weight were calculated.Results The plasma concentration of angiotensin Ⅱ((106.4?7.8)ng/L) and renin activity((20.6?2.4) ng/L)were significantly increaed in hypertensive rats compared with normal rats((72.3?5.4) ng/L and(12.5?3.7) ng/L)(P
7.The Acute Antihypertensive Effects of Recombinant Angiotensin Converting Enzyme Inhibitory Peptides on Spontaneously Hypertensive Rats
Haiyan SUN ; Kewei FANG ; Dong LIU ; Shimin LI
Chinese Journal of Hypertension 2007;0(01):-
Objective To study the effect of angiotensin converting enzyme inhibitory peptides (ACEIP) on blood pressure of spontaneously hypertensive rats.Methods One hundred and four spontaneously hypertensive rats(SHR) were randomized to thirteen groups (n= 8,each group) and received one of following approaches:saline,captopril (10 mg/kg),low-dose (200 ?g/kg),medium-dose(400 ?g/kg) and high-dose (800 ?g/kg) of the three ACEIPs:VLPVP,KVLPVP,VLPVPR respectively.Thirty-two WKY rats were randomized to 4 groups(n=8 in each group),VLPVP,KVLPVP,VLPVPR (800 ?g/kg by gavage) and saline were administrated.The systolic blood pressure was measured before and after the administration of ACEIP.Results Compared with the control group,medium-dose and high-dose of VLPVP,KVLPVP and VLPVPR reduce blood pressure in hypertensive rats and the effect can last for above 6 hours [decline of blood pressure:high-dose:(40.9?15.7),(38.0?21.3) and (43.2?12.6) mmHg;medium-dose:(28.3?23.0),(24.7?21.5) and (26.2?9.9);control:(8.5?5.1),(6.2?4.1) and (7.1?5.5)mmHg;all P0.05].Conclusion Recombinant ACEIP acutely reduce high blood pressure in SHR,the antihypertensive effects persist for at least 6 hours,with no effect on normotensive WKY rats.
8.The effect of NF-κB and correlated inflammatory factors in rat donor liver after cold preservation
An JIANG ; Feng LIU ; Chang LIU ; Yulong SONG ; Kewei MENG ; Yi Lü
Journal of Xi'an Jiaotong University(Medical Sciences) 2009;30(6):661-664,668
Objective To establish a model of rat orthotopic liver transplantation and investigate the relationship among cold preservation time, activation of nuclear transcription factor-κB (NF-κB) and donor preservation injury after liver transplantation. Methods Orthotopic liver transplantation was performed in Wistar rats which were randomly divided into the following groups according to the different duration of liver cold storage in UW solution: group A (sham operation, n=10), group B NF-κB in liver before and after transplantation was measured by electrophoretic mobility shift assays; protein expression of tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β) in the liver was measured by immunohistochemistry; the serum TNFα and IL-1β, alanine aminotransferase (ALT), aspartate aminotransferase (AST) and hepatic cell apoptosis were examined. Results With extended cold storage duration, the activity of NF-κB in the donor liver increased (P<0.05, group D vs. groups A, B and C). TNF-α and IL-1β levels also increased (P<0.05, group D vs. groups A, B and C). Donor liver reperfusion injury was gradually aggravated with the prolonging of graft cold preservation. Both the serum TNF-α and IL-1β levels increased highly (P<0.05 group A vs. groups B, C and D),NF-κB in the liver significantly increased (P<0.05, group A vs. groups D, B and C) with gradual prolonging of graft cold preservation time. The serum ALT and AST level and apoptosis index level elevated greatly (P<0.05, group A vs. groups D, B and C). Conclusion NF-κB of donor liver was activated inductively in cold preservation phase and activated explosively in reperfusion phase. The longer cold preservation time was, the higher NF-κB level in donor liver became. NF-κB led to the expression of TNF-α and IL-1β in donor liver. Inflammatory factors are one of the most important mechanisms for the donor liver injury after liver transplantation.
9.Clinical value of serum N-MID,total TP1NP,β-CTx detection combination with whole-body bone scintigraphy in early diagnosis of bone metastasis in patients with malignant tumor
Dong PENG ; Xuefen LIU ; Huiting LIU ; Yan HE ; Ronghui WANG ; Dejuan HUANG ; Ke PAN ; Kewei XU
International Journal of Laboratory Medicine 2017;38(17):2395-2398
Objective To investigate the clinical value of bone metabolism biochemical marker N-MID,TP1NP and beta-CTx combined with whole body bone scintigraphy in early diagnosis of bone metastasis of tumor.Methods The concentration of the 3 markers were measured by the electrochemical luminescence analysis method in 30 cases of healthy control group and 210 cases of patients with malignant tumor,which were divided into non bone metastasis group(45 cases) and bone metastasis group(165 cases).The bone metastasis group were divided into 4 grades(0-grade Ⅲ) by Soloway classification according to whole body bone imaging.Results The levels of serum N-MID,TP1NP and beta-CTx in 165 malignant tumor patients with bone metastasis were significantly higher than in 45 malignant tumor patients with bone metastasis and in 30 healthy control group,the difference was statistically significant(P<0.05).With the increase of the number of metastatic lesions in the bone metastasis group,the serum levels of N-MID,TP1NP,and beta-CTx were increased gradually,and they were positively correlated with the progression of the disease.According to the analysis of ROC curve,the cut-off value,sensitivity and specificity in the diagnosis of tumor bone metastasis were 17.59 ng/mL,70.3%,88.9% for serum N-MID,43.04 ng/mL,78.2%,95.6% for TP1NP,and 0.48 ng/mL,73.9%,93.3% for beta-CTx.Under the ROC curve(AUC) was 0.831 for serum N-MID,0.890 for TP1NP,and 0.869 for beta-CTx.The sensitivity and specificity of three bone metabolic markers in the diagnosis of bone metastasis of malignant tumor were significantly higher.Conclusion Bone metabolism biochemical markers:Serum N-MID,TP1NP and beta-CTx for diagnosis of bone metastasis of malignant tumor are sensitive,accurate and simple,which can significantly improve the efficiency of diagnosis of bone metastasis,and can be combined with whole-body bone scintigraphy in early diagnosis of bone metastasis with malignant tumor.
10.Effects of different biliary drainage methods on liver regeneration of obstructive jaundice rats after partial hepatectomy
Shengguang YUAN ; Kewei LIANG ; Jie LIU ; Weijia LIAO ; Liling QIN ; Songqing HE
Chinese Journal of Digestive Surgery 2013;12(12):956-962
Objective To investigate the effects of internal and external biliary drainage on liver regeneration of the obstructive jaundice rats after partial hepatectomy.Methods The rat models of obstructive jaundice with 70% liver resection were successfully constructed.All the 120 rats were randomly divided into the control group:rats received middle and left hepatic lobectomy; internal drainage group:a drainage tube was placed between the dilated bile duct and the duodenum; external drainage group:a drainage tube was placed in the dilated bile duct.There were 40 rats in each group.Rats in the internal and external drainage groups received middle and left hepatic lobectomy at postoperative day 7.The blood and hepatic tissues were collected at postoperative day 0,1,2,4,12,24,48,72 hours after operation,and the rate of liver regeneration and mitotic index were determined.The expression of proliferating cell nuclear antigen (PCNA) and signal transducer and activator of transcription 3 (STAT3) in the hepatic tissues were detected by immunohistochemistry,and the levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were detected by ELISA,and the mRNA expressions of TNF-α and IL-6 were detected by RT-PCR.All data were analyzed using the one way analysis of variance or SNK test.Results Within 72 hours after partial hepatectomy,the rate of liver regeneration of the internal drainage group was 94.86%± 12.72%,which was significant higher than 62.39%±8.01% of the external drainage group and 45.77% ± 5.41% of the control group (F =33.62,P < 0.05).The mitotoic index and PCNA levels of the 3 groups had obvious increase at postoperative hour 12,and the mitotoic index and PCNA levels of the external drainage group reached peak at postoperative hour 24,which were 24.47% ± 4.01% and 88.1% ± 9.2%,respectively,the mitotoic index and PCNA levels of the control group and the external drainage group reached peak at postoperative hour 48,which were 15.80% ± 1.08%,58.3% ± 5.8% and 18.40% ± 1.12%,70.2% ± 6.9%,respectively.The mitotoic index and PCNA levels of the internal drainage group were significantly higher than those of the control group and the external drainage group (P < 0.05).The expression of STAT3 expression of the internal drainage group reached peak at postoperative hour 4,which was 42.6% ± 3.6% ;the expression of STAT3 expression of the control group and the external drainage group reached peak at postoperative hour 12,which were 22.9% ± 2.0% and 29.2%± 3.7%.The peak level of STAT3 of the internal drainage group was significantly higher than those of the control group and the external drainage group (P <0.05).The levels of TNF-α and IL-6 of the internal drainage group reached peak at postoperative hour 12,which were (227 ±23)U/L and (256 ± 32)U/L; the levels of TNF-α and IL-6 of the control group and the external drainage group reached peak at postoperative hour 24,which were (309 ± 41) U/L and (388 ± 40) U/L,(287 ± 30)U/L and (346± 33)U/L,respectively.The levels of TNF-α and IL-6 of the internal drainage group at postoperative hour 0,1,2,4,12,24,48,72 were significantly lower than those of the control group and the external drainage group (P < 0.05).The expressions of TNF-α mRNA of the control group,internal drainage group and external drainage group reached peak at postoperative hour 4,which were 0.92 ±0.14,0.39 ±0.05,0.80 ±0.15,respectively.The expressions of IL-6 mRNA reached peak at postoperative hour 12,which were 0.79 ± 0.07,0.38 ± 0.06,0.63 ±0.10,respectively.The expressions of TNF-α mRNA and IL-6 mRNA of the internal drainage group at postoperative hour 0,1,2,4,12,24,48,72 were significantly lower than those of the control group and the external drainage group (P < 0.05).Conclusions Both internal and external drainage can improve liver regeneration of obstructive jaundice rats following partial hepatectomy,while the effect of internal drainage is superior.Internal biliary drainage has influence on the expression of STAT3 by decreasing the levels of TNF-α and IL-6,and help to improve liver regeneration of obstructive jaundice rats following partial hepatectomy.