1.Dose-effect research using nanopatch to deliver siRNA in the inhibition of HPV gene expression.
Zhuo XIONG ; Xiaojing DONG ; Peiwen SUN ; Ying ZHANG
Journal of Biomedical Engineering 2013;30(6):1283-1289
Hela is the cell line of adenocarcinoma of the uterine cervix, and human papillomavirus (HPV) 18 shows positive. We delivered siRNA with target specifically to HPV18 E7 mRNA into nude mice Hela tumor xenografts by nanopatch to inhibit the HPV gene expression, and further to study the superiority, the best action time and concentration of siRNA of using nanopatch to transfer siRNA in vivo. We designed siRNA that target specifically to HPV18 E7 mRNA (siE7) and checked the effect of siE7 in vitro. Tumor xenografts were transfected with siE7 and GenEscort III by nanopatch. Expression of HPV18 E7 mRNA and protein were detected 0 hours, 24 hours, 48 hours, 72 hours after transfection with PT-PCR and Western blot, and the best action time was analyzed using nanopatch to thansfect siRNA in vivo. We transfected GenEscort III and siE7 of Different concentration into tumor xenografts respectively by nanopatch and intraperitoneal injection. Expression of HPV18 E7 mRNA and protein was detected 72 hours after transfection by PT-PCR and Western blot, to analyze the best action concentration of siRNA and the superiority of using nanopatch to thansfect siRNA in vivo. The results proved that SiE7was efficient to inhibit expression of HPV18 E7 mRNA and to advance Hela apoptosis in vitro. SiE7 transfected by nanopatch into xenografts could inhibit effectively expression of HPV18 E7 mRNA and protein. The best action time and concentration of siRNA of using nanopatch to thansfect siRNA in vivo are 72 hour post-transfection and 2 micromol/L siE7. To compare intraperitoneal injection in delivering siRNA in vivo, the effect of nanopatch is very predominant. It can be well concluded that Nanopatch can effectively transfer siRNA in vivo, which can effectively inhibit the HPV gene expression.
Animals
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Apoptosis
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DNA-Binding Proteins
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genetics
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Female
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Gene Expression Regulation, Viral
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HeLa Cells
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Humans
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Mice
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Mice, Nude
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Nanostructures
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administration & dosage
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Oncogene Proteins, Viral
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genetics
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Papillomaviridae
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genetics
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RNA, Small Interfering
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administration & dosage
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Transfection
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Uterine Cervical Neoplasms
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therapy
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Xenograft Model Antitumor Assays
2.Epidemiological analysis on leprosy in China, 2001-2010
Meiwen YU ; Guocheng ZHANG ; Liangbin YAN ; Jianping SHEN ; Peiwen SUN
Chinese Journal of Dermatology 2012;45(6):381-383
ObjectiveTo study the epidemiological characteristics of leprosy in China,2001-2010.MethodsData were collected from the database of the national system of leprosy surveillance.A descriptive and comparative analysis was performed.ResultsTotally,15 507 new leprosy cases were detected from 2001 to 2010 with an average case detection rate of 0.118 per 100 000 population.Among these cases,2.7% were children under 15 years,86.5% multibacillary,and 22.5% suffered from grade 2 disability.From 2001 to 2010,a total of 1506 relapse cases were detected,and relapse occurred after multi-drug therapy(MDT) in 464 of these cases.There were significant differences between low and high endemic areas in the proportion of children under 15 years,females,immigrant patients among newly detected patients as well as the proportion of cases of relapse after MDT among all the relapse cases.By the end of 2010,the registered leprosy cases were 6032 with a prevalence rate of 0.450 per 100 000 population,among whom 2886 were under MDT.ConclusionsThe leprosy case detection rate continued to decrease in China from 2001 to 2010 with an unequal distribution.The pocket areas were in Yunnan province,Guizhou province,Sichuan province,Guangdong province,Hunan province and Tibet Autonomous Region.It is warranted to enhance the control of leprosy and reduce the prevalence of disability due to leprosy.
3.Epidemiological features of leprosy in China from 2011 to 2015
Siyu LONG ; Meiwen YU ; Liangbin YAN ; Guocheng ZHANG ; Peiwen SUN
Chinese Journal of Dermatology 2017;50(6):400-403
Objective To analyze the epidemiological features of leprosy in China from 2011 to 2015,and to provide scientific evidences for prevention and treatment strategies.Methods An epidemiological analysis and a trend analysis were conducted based on the national leprosy surveillance data from 2011 to 2015.Results The leprosy detection rate in China decreased from 0.085 per 100 000 in 2011 to 0.049 per 100 000 in 2015,with an average annual decline rate being 12.9%.A total of 4 775 leprosy cases were newly detected during 2011-2015,including 106 (2.2%) children,1 499 (31.4%) females,518 (10.8%) floating people,4 041 (84.6%) multibacillary cases and 1 134 (23.7%) cases with grade 2 disabilities.From 2011 to 2015,328 relapsed cases were reported,including 153 (46.6%) cases recurring after combined chemotherapy.The prevalence rate of leprosy in China decreased from 0.407 per 100 000 in 2011 to 0.235 per 100 000 in 2015,with an average annual decline rate being 12.9%.By the end of 2015,there had been 3 230 registered leprosy cases and 124 counties with a prevalence rate above 1 per 100 000.Conclusions The detection rate and prevalence rate of leprosy in China were both decreasing continuously from 2011 to 2015.The high-epidemic provinces were Yunnan,Guizhou,Sichuan and Guangdong.However,leprosy control in middle-and low-epidemic provinces can not be ignored.
4.Role of TNF-αin Anterior Cingulate Cortex in Neuropathic Pain Induced by Sciatic Nerve Injury
Shaokun WANG ; Shaoxia CHEN ; Peiwen YAO ; Zicheng SUN ; Xiaodong NA ; Ying ZANG
Journal of Sun Yat-sen University(Medical Sciences) 2017;38(1):8-14
Objective]To discuss the effect of sciatic nerve injury on the expressions of tumor necrosis factor-alpha(TNF-α), interleukin-1β(IL-1β)and interleukin-10(IL-10)in anterior cingulate cortex(ACC),and further to explain their roles resided in the development of neuropathic pain.[Method]With use of the methods of behavioral test,western blot and immunohistochemistry, we examine the effects of spared sciatic nerve injury(SNI)on the expressions of TNF-α,IL-1β,and IL-10 in ACC,and observe the effect of the neutralizing antibody of TNF-α,IL-1β on the rat mechanical allodynia.[Result]In present experiment ,SNI increased the protein levels of TNF-α,IL-10,but not IL-1β in ACC. Increased TNF-α-IR and IL-10-IR in ACC is located in neurons ,but not astrocytes and microglia at 7 d following L5-VRT. Pre-treatment with anti-TNFα antibody but not anti-IL-1βantibody into ACC significantly increased the rat paw withdrawal threshold to von Frey hairs.[Conclusion]These data suggested that the increased TNF-αin ACC neurons might be responsible for the development of neuropathic pain.
5.Protective effects of Siwuheji on cisplatin induced ovarian dysfunction in mice.
Liping SUN ; Jifeng WANG ; Jianzhao NIU ; Peiwen ZHAO ; Qingxiu HAO
China Journal of Chinese Materia Medica 2010;35(4):481-484
OBJECTIVETo evaluate the protective effects of siwuheji on cisplatin-induced ovarian impairing and explore its possible mechanisms in mice.
METHODThe mice received cisplatin ip (7 mg kg(-1)) for 7 days, while fed with siwuheji for 14 days. The changes of estrous cycle, ovary and uterus coefficient, levels of estrogen in serum and morphology of ovary were recorded.
RESULTFrom the third day of cisplatin injection, the estrous cycle of the model group stagnated in interphase. On the thirteenth day, part of the mice fed with siquheji started with change of estrous cycle. The ovary coefficient of the model group was less than the control group, the experimental groups were no differences compared with the control group and had significant differences with the model group. The levels of E2 and P of model group were lower than the control group, but no statistical significance. The level of E2 with high-dose Siwuheji group was higher than model group, and the level of P of the low-dose group was higher than model group, but both no statistical significances. The FSH/LH ratio of model group was significantly higher than the control group, low-dose group and medium-dose group of siwuheji resumed to normal levels, and had a significantly change compared with the model group. Ovarian biopsy of model group showed the decrease in the number of developing follicle at all levels, and increase in the number of Atresia of ovarian. There were more growing follicte in the large, medium-dose group.
CONCLUSIONCisplatin can induce mice ovarian injury and functional decline, on the other hand, siwuheji can improve cisplatin-induced ovarian dysfunction.
Animals ; Cisplatin ; adverse effects ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Mice ; Mice, Inbred ICR ; Ovarian Diseases ; chemically induced ; drug therapy ; physiopathology ; Ovary ; drug effects ; physiopathology ; Random Allocation ; Uterus ; drug effects ; physiopathology
6.Characteristics of transient remission of islet function and its influence on long-term prognosis in different onset age patients with type 1 diabetes mellitus
Xuemei SHE ; Peiwen TIAN ; Ximing SUN
Chinese Journal of Diabetes 2024;32(6):432-436
Objective To investigate the characteristics of transient remission of islet function and its influence on long-term prognosis in different onset age patients with type 1 diabetes mellitus(T1DM).Methods 156 newly diagnosed T1DM patients who received treatment and completed follow-up were retrospectively chosen from January 2014 to January 2018.All patients were grouped according to the onset age including childhood group(n=18),adolescent group(n=108),adult group(n=30).The transient remission and retention rate of islet function of three groups were compared.The relationship between onset age and c-peptide level was analyzed.Results BMI,FC-P,and 2 hC-P levels in adolescent group were higher than those in childhood group(P<0.05).The positivity rates of protein tyrosine phosphatase and zinc transporter 8 antibodies in adult group were lower than those in childhood group(P<0.05).The incidence of transient remission of pancreatic function in adolescent group was higher than that in childhood and adult groups(P<0.05).The duration of transient remission of pancreatic function in adolescent and adult groups was lower than that in childhood group(P<0.05).The islet function retention rates in adolescent group after 1 and 4 years from onset were higher than those in childhood and adult groups(P<0.05).Generalized estimation equation analysis showed that the long-term FC-P and 2 hC-P in adolescent group were higher than those in childhood and adult groups(P<0.05).The FC-P and 2 hC-P levels in adult patients with previous transient remission were higher than those in childhood group(P<0.05).Conclusions Adolescent onset T1DM patients are more likely to have transient remission of islet function,while childhood onset patients have longer transient remission of islet function.In addition,the adult T1DM patients had the best long-term islet function in transient remission population.
7.Value of MMP-1 and PTEN detection in early pregnancy in predicting osteoporosis in middle and late pregnancy of pregnant women with gestational diabetes mellitus
Peiwen SUN ; Wenxiu ZHU ; Zhiqin REN ; Ying CHEN ; Juanjuan LI
Chinese Journal of Endocrine Surgery 2024;18(5):719-723
Objective:To explore the value of serum matrix metalloproteinase-1 (matrix metalloproteinase-1), and phosphatase and tensin hmmlogydeleted on ten (PTEN), in predicting osteoporosis (OP) in women with gestational diabetes mellitus (GDM) .Methods:The clinical data of.218 pregnant women with GDM treated in Linyi People’s Hospital from Sep. 2019 to Feb. 2023 were retrospectively collected and included in the GDM group. Another 98 healthy pregnant women who underwent physical examination during the same period were selected as the control group. Age, body mass index (BMI), blood glucose related indexes and serum MMP-1 and PTEN levels were compared between the two groups. According to the occurrence of osteoporosis (OP) in the second and third trimester of pregnancy, the GDM group was divided into OP group and non-OP group. Logistic regression analysis was used to explore the influencing factors of OP in pregnant women with GDM in the second and third trimesters. ROC curve was drawn to analyze the predictive value of serum MMP-1 and PTEN levels for osteoporosis in GDM pregnant women in the second and third trimesters.Results:Body mass index (BMI), fasting blood glucose (FBG), glycated hemoglobin A1c (HbA1c) and serum MMP-1 and PTEN levels in GDM group were higher than those in control group, but BUA, SOS and SI were lower than those in control group ( t=6.18, 12.68, 9.91, 11.42, 7.70, 5.63, 5.76, 9.84, all P<0.05). Among 218 GDM women, 29 cases had OP and 189 cases did not have OP. There were no significant differences in fasting blood glucose, glycosylated hemoglobin, blood calcium, blood magnesium, or blood phosphorus between the two groups (statistical value: 0.96, 0.86, 1.35, 1.06, 0.49, P>0.05). Logistic regression analysis showed that age, abnormal increase of MMP-1 and PTEN levels were independent risk factors for OP in GDM women in the second and third trimesters [ OR (95% CI) =1.260 (1.103-1.440) ,1.075 (1.031-1.120) ,1.055 (1.023-1.089), all P<0.05]. ROC curve showed that the AUC of MMP-1 and PTEN in predicting OP in GDM pregnant women in the second and third trimesters were 0.824 and 0.777, respectively. The AUC of the combination of the two in predicting OP in GDM pregnant women in the second and third trimesters was 0.933, and the specificity and sensitivity were 83.04% and 93.48%, respectively, which were higher than those of single detection. Conclusions:MMP-1 and PTEN in early pregnancy may play a potential role in the prediction of OP in pregnant women with GDM. Close monitoring of MMP-1 and PTEN levels may provide new ideas for the clinical diagnosis and treatment of OP high-risk patients.
8.Amifostin in protection of kidney from cisplatinum injury.
Huijuan CUI ; Shujun ZHANG ; Peiwen LI ; Zhongzhen GUAN ; Xiaofei SUN ; Keng SHEN ; Ming WU ; Xiaodian HU ; Shujun LIU ; Lijun DI ; Shucai ZHANG
Chinese Journal of Oncology 2002;24(1):48-50
OBJECTIVETo evaluate Amifostin's effect on protecting kidney from cisplatinum (DDP) injury and its adverse reactions and safety.
METHODS193 Patients were divided into two groups randomly: 102 in group A (treatment group) and 91 in group B (control group). Indexes such as blood routine, blood calcium, liver function, blood urea nitrogen (BUN), cretinine (C), and urinary N-acetyl-beta-D-glucosaminidase (NAG)/C and micro-albumin (MAB/C) were monitored at different intervals before or after treatment.
RESULTSIn the two courses of treatment in both groups, the deviation (D) values of MAB/C before treatment and on D2 in group A were lower than those in grop B (P < 0.05), so were those before treatment and on D4, D6, D10 and D14 (P < 0.01). The D-values of NAG/C before treatment and on D4, D6, D10 and D14 in the first course of group A were obviously lower than those on the corresponding days in group B (P < 0.01), so were those before treatment and on D2, D4, D6, D10 and D14 in the second course (P < 0.01).
CONCLUSIONThe reduction of MAB/C and NAG/C by Amifostin in group A demonstrates that: Amifostin is able to effectively protect the renal function, regardless of the type of tumor. In contrast with group B, Amifostin in group A shows no protection for tumor in lung cancer and ovarian cancer. The main side effects of Amifostin are mild hypotension, nausea, vomiting and hypocalcemia in some patients.
Adult ; Aged ; Amifostine ; adverse effects ; therapeutic use ; Antineoplastic Agents ; adverse effects ; Cisplatin ; adverse effects ; Humans ; Kidney Diseases ; chemically induced ; prevention & control ; Middle Aged ; Protective Agents ; adverse effects ; therapeutic use
9.Clinical observation of hot-wet compression with Xiaohua ointment for acne mastitis in mass stage
Na FU ; Peiwen LYU ; Dongxiao ZHANG ; Wenjie ZHAO ; Qiao HUANG ; Hao DONG ; Yujian SUN
Journal of Chinese Physician 2020;22(8):1176-1179
Objective:To observe the clinical effects of hot-wet compression with Xiaohua ointment for acne mastitis in mass stage and its impacts on humoral immune function and inflammation.Methods:85 cases of patients with acne mastitis in mass stage treated in our hospital from January 2018 to January 2019 were selected as the research objects and randomly divided into control group (42 cases) and observation group (43 cases). The control group taken Tuoli xiaodu powder and external use of purple detumescence cream, and the observation group received hot-wet compression with Xiaohua ointment additionally. All treated for 30 days. The clinical efficacy, symptom scores, breast mass size, humoral immune indexes, C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) were compared, and the adverse reactions were recorded.Results:After treatment, the humoral immune indexes of the two groups had no significant change ( P>0.05), but the pain score, breast tumor size, mass score, CRP and ESR were significantly decreased than those before treatment ( P<0.05); compared with the control group, the pain score, breast tumor size and mass score in the observation group were significantly lower than those in the control group ( P<0.05). The total effective rate of the observation group was 83.7%, which was significantly higher than 59.5% of the control group ( P<0.05). There were no obvious adverse reactions in both groups. Conclusions:Hot-wet compression with Xiaohua ointment is effective and safe for patients with acne mastitis in mass stage, and could improve their inflammation.
10.Research on clinical application of disease management model of individualized stepped-nursing for the patients with type 2 diabetes
Xiaowei JIN ; Kewen MEI ; Xiaomei SHENG ; Chunmei SUN ; Peiwen YU ; Wenjuan DI
Journal of Clinical Medicine in Practice 2014;(22):5-8
ABSTRACT:Objective To assess the effectiveness of the disease management model of stepped-nursing intervention in the metabolic control in patients with type 2 diabetes (DM2). Methods 114 patients with DM2 were randomized in experimental group and control group.The experimental group applied stepped-nursing model while the control group applied conventional nursing.Blood glucose,glycated hemoglobin A1c,body mass index (BMI),waist -hip ratio (WHR),blood pressure,lipids and control criteria were observed.Results BMI,glycated hemoglobin A1c,fasting blood sugar(FBS),triglycerides,systolic blood pressure (SBP)levels and diabetic knowledge score decreased significantly in the stepped-nursing group(P <0.05).The decrease levels in postprandial blood sugar(PBS),diastolic blood pressure (DBP),total cholesterol (TC),LDL cholesterol and WHR reduced,which showed no significant difference(P >0.05). The levels of HDL cholesterol were slightly improved,which showed no significant difference(P >0.05).Conclusion Stepped-nursing model is useful in overall treatment of patients with type 2 diabetes,it improves the condition of glycated hemoglobin A1c,SBP levels FBS and triglycerides and increases the command of diabetic knowledge.