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Objective A program-controlled flexible multi-point temperature measurement device was self developed for collection and analysis of skin temperature signals of diabetic patients and healthy subjects under resting and heating conditions so as to assess vasodilation function of the microcirculation, Methods With reference to the endothelial regulation spectrum of human body, wavelet analysis was performed on skin temperature signals, and the temperature fluctuation amplitudes in diabetic group and healthy control group were compared at different time periods after thermal stimulation. Results The temperature fluctuation amplitude in endothelial spectrum of diabetic group was smaller than that of healthy control group, and the decrease in skin temperature fluctuation after the power-off of thermal stimulation was remarkably smaller than that of control group, indicating that the response to thermal stimulation for diabetic patients was slower. Conclusions Vasodilation function can be quantitatively evaluated by using the fluctuation of skin temperature signals in endothelial spectrum band. Skin temperature monitoring is a potentially easy-implemented method for the health management and early diagnosis of microvascular diseases in diabetic patients.
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Objective To investigate the clinical effect of oxytocin combined with misoprostol in preventing postpartum hemorrhage of cesarean section.Methods 86 patients with cesarean section who were treated and diagnosed in our hospital from March 2016 to October 2016 were randomly divided into experimental group and control group according to the time of hospitalization.The patients were randomly divided into experimental group and control group.43 cases.Preoperative two groups of patients with different treatment methods for science introduction, so that pregnant women mental stress to relax, ease the heart anxiety and nervous mood.On the basis of conventional treatment, the experimental group received the uterine injection of oxytocin, while the patients under the tongue to take drugs;the control group of patients with oxytocin injection for preventive treatment.Results In the two groups, 32 cases were effective in the experimental group, 1 case was ineffective, the effective rate was 97.67%, compared with 10 cases in the control group, 16 cases were ineffective, the total effective rate was 62.79 % was statistically significant(P<0.05).Conclusion Oxytocin combined with misoprostol has a good therapeutic effect on the postpartum hemorrhage in the prevention and treatment of uterine bleeding.Compared with the original conventional treatment, there is a high efficiency, and the patient's comfort is Higher to improve, to a certain extent, is the more excellent clinical treatment.
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Objective To probe the new mechanism of simvastatin on high-fat diet-induced kidney dam-age. Methods Female SD rats were subjected to a standard control diet(SCD)or high-fat diet(HFD)for 20 weeks,then the HFD group was randomly divided into HFD group and HFD group with simvastatin treatment (HFD+ST,10mg·kg-1·d-1 )for another 8 weeks. The expression of adiponectin,adiponectin receptors R1 and R2, Adenosine 5′-monophosphate(AMP)-activated protein kinase(AMPK),peroxisome proliferator-activated receptorα(PPARα),glucose regulated protein 78(GRP78)and GADD153(CHOP)in kidney were assessed respective-ly. Results Body weight and serum lipid levels in HFD group significantly increased ,expression of adiponectin and its receptors significantly down-regulated. Phosphorylation of AMPKα and PPARα expression decreased,and expression of GRP78 and CHOP up-regulated significantly. Above indexes in simvastatin treatment groups improved significantly. Conclusion Simvastatin can improve high-fat induced kidney damages ,probably by increasing expression of adiponectin and its receptors ,decreasing endoplasmic reticulum stress.
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Objective To observe the clinical value of the cervical conization operation margin in predicting residual focal in patients with adenocarcinoma in situ (ACIS).Methods 60 ACIS patients were reviewed,and postoperative specimens were analyzed.Negative resection margin was defined as:no residual tumor epithelial cell was seen in operation margin around,and normal cervical epithelial cells can be visible.Relations between the margin status and incidence of residual were analyzed.Results The margin positive rate in LEEP was 56.8%,which was significantly higher than that in CKC(26.1 %,χ2 =5.390,P =0.02).The corrected odds was 4.31 (OD =4.31 , 95%CI 1 .1 3 -1 6.43,P =0.03).None had no residual tumor in 26 cases with margin negative,and 1 7 cases (65.4%)were detected with residual tumor in 26 positive margins (χ2 =25.257,P <0.01 ).Conclusion The ACIS patients with negative margins have a lower risk for residual focal.The standard sampling and judging methods in evaluating margin criteria can enhance the predictive value of margins.
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Aim To investigate endoplasmic reticulum stress ( ERS)-mediated high-fat diet and palmitic acid-induced insulin resistance ( IR) in skeletal muscle and interventional effects of fenofibrate both in vivo and in vitro tests. Methods Female SD rats were randomly subjected to a standard control diet ( SCD) or high-fat diet ( HFD) for 20 weeks, then the HFD group was di-vided into high-fat-diet group and high-fat-diet group treated with fenofibrate ( HFD +FF, 30 mg · kg-1 · d-1 ) for another 8 weeks. The changes of IR and ex-pression of peroxisome proliferator-activated receptor α( PPARα) , glucose regulated protein 78 ( GRP78 ) and transcription factors GADD153 ( CHOP ) were as-sessed respectively. C2C12 myotubes were divided into normal control group ( NC ) , model group ( palmitic acid, PA) , postive control drug group ( tunicamycin, TM) and treatment group ( fenofibric acid, FA+PA) , the expressions of GRP78 and CHOP were assessed re-spectively. Insulin-stimulated phosphorylation of Akt was also analyzed to detect changes of insulin sensitivi-ty in C2 C12 . Results The high-fat diet induced obvi-ous IR and upregulated ERS markers GRP78 and CHOP in skeletal muscle of rats, and these responses were attenuated by treatment with fenofibrate. Incuba-tion of myotubes with palmitic acid or tunicamycin sig-nificantly increased expression of ERS markers GRP78 and CHOP. Meanwhile, insulin-stimulated phosphoryl-ation of Akt was inhibited obviously. Pre-incubation with FA markedly inverted PA-induced ERS and insu-lin-stimulated phosphorylation of Akt. Conclusion Fenofibrate ( fenofibric acid) has obvious effects of IR on skeletal muscle tissues and cells, which may be re-lated with reduced expression of GRP78 and CHOP in ERS.
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Objective To study the influences of fenofibrate on oxidative stress and endoplasmic reticulum stress in livers of hyperlipidemic rats. Methods Male SD rats were fed with high-fat diet for 12 weeks to induce a model of hyperlipidemia, then divided into control group, high-fat diet group with another four-week high-fat diet and fenofibrate group, in which rats were treated with fenofibrate [100 mg / (kg·d)] for 4 weeks. Then improvement of insulin resistance was detected in rats with GTT and ITT experiment. The serum levels of glucose (GLU), fasting insulin (FINS),triglyceride (TG) and total cholesterol (TC) were detected. The pathological changes of livers were detected with Oil Red O staining. The oxidative stress indices such as T-SOD, Mn-SOD, GSH and T-AOC were detected with liver homogenate. The expression of GRP78 was detected with real-time quantification RT-PCR and Western blot analysis respectively. Results Compared with rats with high-fat-diet, rats after fenofibrate treatment showed obviously improved insulin resistance, lower serum level of TG, TC and FINS (P 0.05). The expression of GRP78 at mRNA and protein levels were increased significantly after fenofibrate treatment (P < 0.05). Conclusions Fenofibrate has significant effects on improving insulin resistance and lipid regulation, which might be related to decreased oxidative stress and subsequent endoplasmic reticulum stress.
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Aim To study whether the mechanisms in-volved in resveratrol′s protective effects on vascular en-dothelial injury induced by high-calorie and high-chol-estrol diet are concerned with ERS and the change of eNOS expression. Methods Twenty-four male C57BL/6 mice were randomly divided into standard control diet (SCD),high-calorie and high-cholestrol diet(HCD)and HCD group treated with resveratrol (HCD +RES,400 mg·kg -1 ·d -1 ,1 2 weeks).Then the thoracic aorta was separated,embedded and sliced to analyze the pathological changes by HE and resor-cinol staining.The protein distribution of eNOS was measured with immunohistochemical analysis.The up-stream and downstream genes of ERS in thoracic aorta were detected by RT-PCR.After the pretreatment with different concentrations of resveratrol,the mouse aortic endothelial cells (MAECs)were treated with palmitic acid,then the changes of cell proliferation in each group were compared.Western blot,immunofluores-cence and immunohistochemistry were used to deter-mine the protein expressions of GRP78,CHOP and eNOS respectively.Results Mice fed with HCD showed thickening of thoracic aortic wall and disorgan-ized elastic fibers as compared with those in SCD group.The mRNA levels of ERS related genes were all increased obviously (P <0.05),while the protein expression of eNOS was decreased.Compared with HCDgroup,the thickened wall and the disorganized elasticfibers were improved significantly,the mRNA levels ofERS related genes were all decreased obviously (P <0.05)and the expression of eNOS protein was increased in HCD +RES group.Compared with NCgroup, the cell proliferation was significantly decreased,meanwhile GRP78 and CHOP was significantly increased (P <0.05)and the protein expression ofeNOS was decreased in PA group.The cell proliferation was increased significantly (P <0.05),the mRNA and protein expression of GRP78 and CHOP wasobviously decreased (P <0.05),meanwhile the protein expression of eNOS was increased in the mediumand large dose of RES pretreatment groups.Conclusion Resveratrol has obvious effects of improving endothelial damages induced by HCD and decreasing cellproliferateion of MAECs induced by PA, and themechanisms are possibly related with decreased ERSand increased level of eNOS protein.
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Objective To study whether the protective effects of fenofibrate on insulin resistance in mice of nonal-coholic fatty liver disease(NAFLD) are related to endoplasmic reticulum stress (ERS). Methods Male C57BL/6 mice were fed with high-calorie and high-cholesterol diet ( HCD) to induce a model of NAFLD, then one of those two groups from HCD was treated with fenofibrate 40 mg/( kg · d ) for 2 weeks ( HCF ) . Glucose tolerance test (GTT) and insulin tolerance test (ITT) were used to analyze the improvement on insulin resistance. The serum levels of triglyceride ( TG) , total cholesterol ( TC) , high density lipoprotein-cholesterol ( HDL-C) , low density lip-oprotein-cholesterol ( LDL-C) , alanine aminotransferase ( ALT) and aspartic transaminase ( AST) were detected. The pathological changes of livers were detected with HE and Oil Red O staining, the mRNA and protein expression of peroxisome proliferator-activated receptorα( PPARα) , glucose regulated protein 78 ( GRP78 ) and transcription factors GADD153 ( CHOP) were detected with real-time quantification PCR and Western blot analysis respectively. Results Compared with the SCD mice, the HCD mice showed significant insulin resistance, higher serum levels of TG, TC and LDL-C (P<0. 01, P<0. 05), lower serum level of HDL-C (P<0. 01), micro-and macrovesicular steatosis, ballooned hepatocytes and infiltration of inflammatory cells were observed in the liver, the expressions of PPARα and GRP78 at mRNA and protein levels were decreased (P<0. 05), however, the expressions of CHOP at mRNA and protein levels were increased ( P<0 . 05 ) . Fenofibrate intervention significantly improved insulin resist-ance and decreased the serum level of TG ( P<0. 05 ) . Fenofibrate also alleviated hepatic steatosis and inflammato-ry infiltration, and increased the mRNA and protein expressions of PPARα and GRP78, decreased the mRNA and protein expression of CHOP ( P<0 . 05 ) . Conclusion Fenofibrate significantly improves insulin resistance and de-creases the serum level of TG in NAFLD mice, which may be related to activating PPARα and relieving ERS.
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OBJECTIVE@#To investigate the allergens in patients with allergic rhinitis, to find common allergens of Changsha and to provide statistic basis for a reasonable prevention and treatment.@*METHOD@#The allergens in 1437 patients with allergic rhinitis in Changsha were detected by skin prick test.@*RESULT@#Eight hundred and ninety-eight (62.49%)of 1437 cases presented positive reaction. Among positive cases in inhalation group, the most common allergen was flour mite (98.33%), then were house dust mite (94.54%), mycetes II (19.27%) and weed (18.37%). Shrimp (35.41%) was the most common allergens in food group. And in childhood, adolescence and adulthood prick-positive cases, the ratio of more than 2 positive allergens were about 8.57%,18.04%, 19.15%.@*CONCLUSION@#The study shows that the flour mite and house dust mite are the most common allergens in Changsha.
Subject(s)
Adolescent , Adult , Aged , Animals , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Young Adult , Allergens , China , Epidemiology , Mites , Prevalence , Pyroglyphidae , Rhinitis, Allergic, Perennial , Epidemiology , Skin TestsABSTRACT
Objective:To construct Interleukin 21 (IL 21) expression plasimd pCDNA3.1 IL21 and express it in Hela cell and analysis its acitivity of costimilating T cell proliferation with anti CD3 monoclonal antibody in vitro.Methods:The CDs of IL 21 was amplified by PCR using the pMD IL21 as templet.The expression plasimd pCDNA3.1 IL21 was constructed by inserting the sequence of coding region of the IL 21 into pCDNA3.1/Hismyc B containing CMV promoter and transfected into Hela cells.The stability expression stain was screened by the condition media containing 400 mg/L G418 and cloned through the limited dilution method.The target protein was purified through Ni 2+ chelating Sepharose Fast Flow.The bioactivity was confirmed by MTT method on costimulating the T cell proliferation with anti CD3.SDS PAGE and Western blot analysis the rhIL 21 expressed.Results:hIL 21 was expressed in Hela cell successfully.SDS PAGE analysis showed the IL 21 fusion protein with Mr 18 000 or so was expressed in supernatant of the cells.The rhIL 21 has significant proliferation effect on mature human T cells in the presence of anti CD3 monoantibody.Conclusion:The rhIL 21 with bioactivity has been obtained,which may help researcher study its new function and effects. [
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Objective: To clone cDNA of human interleukin-29(IL-29) and express it in cos-7 cells, and to study its anti-HBV activity in vitro. Methods: Total RNA was extracted from PBMCs which had been infected with vesicular stomatitis virus(VSV) in vitro.IL-29 cDNA was amplified using one-step RT-PCR technique. The recombinant expressing plasimd of psectagB/His-myc-IL29 was constructed by inserting IL-29 cDNA into the vector and was then transfected into cos-7 cells. Stable expression stains were screened by Hygromycin B and limited dilution method. The target protein was purified through Ni2+-chelating Sepharose Fast Flow. Anti-viral bioactivity of the recombinant IL-29 fusion protein was analyzed through an in vitro model of production of HBV by the HepG2.2.2.15 cell line.ELISA was used for detection of the viral titers in the cell cultural supernants. Results: IL-29 was cloned and stably expressed in cos-7 cells successfully. SDS-PAGE and Western blot analysis showed multiple bands of the target protein with the molecular weights between 20 000 and 33 000, and the major band was located at about 33 000, indicating the fused IL-29 modified by additional glycosylation. The rhIL-29 was shown to dose-dependently inhibit secretion of HBsAg and HBeAg accompanied by the reduction of HBV genomic DNA in the cells tested. The inhibition ratio of HBsAg and HBeAg production was attained 85% at a concentration of 160 ?g/L of rhIL-29. Conclusion: The rhIL-29 with anti-HBV activity has been obtained.