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Primary Sjogren's syndrome (pSS) is a chronic autoimmune disease involving exocrine glands. Current studies have found that the occurrence of the disease is closely related to genetic, environmental and neuroendocrine factors, as well as abnormal activation of T and B lymphocytes. The etiology and pathogenesis of pSS is complex, and there is a lack of specific targeted drugs. Traditional Chinese medicines (TCMs) have been comprehensively investigated for their treatment effects on pSS. Through a systematic review of the literature, we summarized the TCMs used to treat pSS, and find that there are four major ways that TCMs are used, including upregulation of aquaporin proteins, suppression of cell apoptosis, suppression of the abnormal activation of B lymphocytes and suppression of the abnormal activation of T lymphocytes (balancing T helper type [Th]1/Th2 & Th17/Treg and suppressing follicular helper T [Tfh] cells). However, there are not enough data about the active constituents, quality control, pharmacokinetics, toxicity and modern preparations of these TCMs; therefore, more investigations are needed. This paper highlights the importance of TCMs for treating pSS and provides guidance for future investigations.
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To prove that ursolic acid(UA)could activate the autophagy of colorectal cancer HCT116 cells by inhibiting hedgehog signaling pathway. The effect of UA on the viability of HCT116 cells was determined by MTT assay. The effect of UA on the proliferation and migration of HCT116 cells was detected by crystal violet staining and scratch test. In the study on autophagy, the time points were screened out first: the autophagy fluorescence intensity of UA acting on HCT116 at different time points were detected by Cell Meter~(TM) Autophagy Assay Kit; Western blot was used to detect the expression of autophagy protein P62 at different time points. Then, Cell Meter~(TM) Autophagy Assay Kit was used to detect the effect of UA on autophagy fluorescence intensity of HCT116 cells. The effect of different doses of UA on the expressions of LC3Ⅱ and P62 proteins in HCT116 cells were detected by Western blot. Further, AdPlus-mCherry-GFP-LC3 B adenovirus transfection was used to detect the effects of UA on autophagy flux of HCT116 cells; UA combined with autophagy inhibitor chloroquine(CQ) was used to detect the expression of LC3Ⅱ by Western blot. In terms of mechanism, the effect of UA on hedgehog signaling pathway-related proteins in HCT116 cells was detected by Western blot. The results showed that UA inhibited the activity, proliferation and migration of HCT116 cells. UA enhanced the fluorescence intensity of autophagy in HCT116 cells, while promoting the expression of LC3Ⅱ and inhibiting the expression of P62, in a time and dose dependent manner. UA activated the autophagy in HCT116 cells, which manifested that UA resulted in the accumulation of fluorescence spots and strengthened the fluorescence intensity of autophagosomes; compared with UA alone, UA combined with autophagy inhibitor CQ promoted the expression of LC3Ⅱ. UA reduced the expressions of PTCH1, GLI1, SMO, SHH and c-Myc in hedgehog signaling pathway, while increased the expression of Sufu. In conclusion, our study showed that UA activated autophagy in colorectal cancer HCT116 cells, which was related to the mechanism in inhibiting hedgehog signaling pathway activity.
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Humanos , Apoptose , Autofagia , Linhagem Celular Tumoral , Neoplasias Colorretais , Proteínas Hedgehog/genética , Transdução de Sinais , TriterpenosRESUMO
Sepsis is one of the main causes of death in critically ill patients. The intestinal tract is not only the organ easily involved in sepsis, but also the initial organ in the progression of sepsis, so the improvement of intestinal barrier function is the key of the treatment of sepsis. In recent years, it has been found that autophagy is involved in the pathological process of sepsis, maintaining mitochondrial function by clearing damaged organelles, inhibiting inflammation, oxidative stress and apoptosis, regulating immunity, maintaining intestinal homeostasis, and improving the condition and prognosis of sepsis. It is an effective target for the treatment of sepsis. As a new type of medical gas signal molecule, hydrogen sulfide (H 2S) can regulate autophagy by regulating multiple signal pathways, which has become a new target in the treatment of sepsis. This article reviews the signal pathway regulation mechanism of H 2S regulating autophagy in septic intestinal dysfunction.
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[Objective]To investigate the value of"pericardium crescent sign"in the diagnosis of non-calcified con-strictive pericarditis in CT.[Methods]Twenty-seven patients with non-calcified constrictive pericarditis and forty-six cardiac tumors confirmed by surgical pathology were analyzed retrospectively. All patients underwent non-enhanced and enhanced CT scan preoperatively.Pericardial morphology,density,enhancement features,appearance of atrium,ventri-cle and inferior vena cava of non-calcified constrictive pericarditis were analyzed. Pericardial morphology of cardiac tumors was also analyzed.[Results]Of the 27 patients with non-calcified constrictive pericarditis,18 patients developed"pericardium crescent sign",accounting for 66.7%,ventricular varying degrees of deformation in 13 cases,accounting for 48%;venous dilatation in 26 cases,accounting for 93%;atrial enlargement in 7 cases,accounting for 26%. In 46 patients with cardiac tumors,only 1 patient had a similar"pericardial crescent"sign.For the diagnosis of constrictive pericarditis using pericardial crescent sign,the sensitivity was 66.7%,the specificity was 97.8%,Youden index was 0.64. The area under the ROC curve was 0.82([0.71-0.94],P<0.001).[Conclusion]"Pericardium crescent sign"is important CT features of non-calcified constrictive pericarditis. It has high specificity for differentiating non-calcified constrictive pericarditis from pericardial tumor imaging.
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The type 2 diabetes rat model was induced with high-sugar and high-fat diet combined with low-dose STZ. This study investigated the hypolipidemic mechanism of Coptis chinensis and C. deltoidea. After 30 days of administration, HOMA-IR and the content of TG in serum were detected, and the expressions of SCAP, SREBP-1c were tested by the method of Western blot and Real-time PCR analysis. The test results showed that both components can significantly alleviate insulin resistance and down-regulate the expressions of SREBP-1c and SCAP in liver tissue of type two diabetes mellitus. Compared with the control group, there were significant differences in relevant protein expression (<0.05, <0.01). This indicates that the inhibition of SREBP-1c and SCAP expressions may be the hypolipidemic mechanism of Coptidis Rhizoma on type 2 diabetes mellitus. The results also showed that C. deltoidea has a better efficacy in lipid elimination, but a weaker hypoglycemic effect against C. chinensis.
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Objective To investigate the effect of ultrasound elastography combined with serum carbohydrate antigen 15-3(CA15-3 C), C keratin 19 fragment antigen 21-1(CYFRA21-1)and prostate specific antigen (PSA) levels detection on the sensitivity and accuracy of breast cancer diagnosis. Methods Sixty cases of breast cancer from December 2015 to January 2017 were selected as study group, and all cases were diagnosed as breast cancer by pathological examination.They were divided into groups according to the TNM classification criteria of breast cancer, stageⅠ22 cases, stageⅡ17 cases, stage Ⅲ14 cases, stageⅣ7 cases.Fifty-three cases of benign breast diseases were selected as control group. The levels of serum CA15-3, CYFRA21-1 and PSA were compared among two groups and the study group at different stages. The correlations between serums CA15-3, CYFRA21-1 and PSA expression level and breast cancer staging were analyzed. The results of pathological examination were regarded as "gold standard". Serum CA15-3, CYFRA21-1, PSA levels, single detection of ultrasound elastography and combined detection of breast cancer results were compared. Results The levels of serum CA15-3, CYFRA21-1 and PSA in study group were higher than those in control group:(37.98 ± 4.71)kU/L vs.(8.58 ± 3.04) kU/L,(5.41 ± 3.24)μg/L vs.(1.42 ± 0.47)μg/L,(0.39 ± 0.11)μg/L vs. (0.16 ± 0.04) μg/L, and there were significant differences (P<0.01). The levels of serum CA15-3, CYFRA21-1 and PSA in patients with stageⅢandⅣof breast cancer were higher than those of patients with stageⅠandⅡof breast cancer,and there were significant difference(P<0.01).Spearman correlation analysis showed that serum CA15-3, CYFRA21-1 expression levels and breast cancer staging was positively correlated (P < 0.05). There was a negative correlation between serum PSA expression and breast cancer staging(P<0.05).The sensitivity 98.33%(59/60), specificity 96.23%(51/53)and accuracy rate 97.35%(110/113) of breast cancer detected by serum CA15-3, CYFRA21-1, PSA levels and ultrasonic elastography was higher than that of single dectction, and the difference was statistically significant (P < 0.05). Conclusions The levels of serum CA15-3, CYFRA21-1 and PSA are closely related to the occurrence and progression of breast cancer.The combination of serum CA15-3, CYFRA21-1 and PSA levels with ultrasonic elastography can improve the specificity, sensitivity and accuracy of diagnosis of breast cancer.
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Objective To summarize analysis in elderly patients with type 2 diabetes mellitus with cerebral microvascular lesion with diabetes pill in combination with metformin on patients after treatment the blood viscosity, the effects of cognitive dysfunction.Methods Our hospital during the period of July 2014 to September 2016 received 100 cases of elderly patients with type 2 diabetes mellitus with cerebral microvascular lesions, according to the random allocation method divided into observation group(50 cases) and control group(50 cases) and control group using metformin treatment, the observation group USES the diabetes pill metformin treatment, treatment effect of two groups of patients and related indicators for comparative analysis.Results After treatment the cognitive function score and blood viscosity related indicators, statistically significant differences between observation group and control group.Conclusion Elderly patients with type 2 diabetes mellitus with cerebral microvascular lesions in clinical application in diabetes, pill metformin, help to improve the patient's cognitive dysfunction, improve the patient's blood viscosity, promote the prognosis of patients, is worthy of popularization and application.
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Objective To study the prognostic factors of operative patients with colorectal cancer.Methods Four hundreds and ninety-four patients with colorectal cancer treated from January 2003 to December 2009 in Shanxi Cancer Hospital were involved in this study.The demographic data,clinical and pathological features,serum levels of tumor markers were analyzed retrospectively.The prognostic factors were analyzed by univariate Kaplan-Meier survival analysis and multivariate Cox proportional hazards models.Results The 1-,2-,3-,4-,5-year survival rates of 494 patients were 92.31%,69.43 %,50.00 %,31.17 % and 12.96 % respectively.Non-Cox proportional hazards model with time-according to coefficient of multivariate analysis showed that Duke stage,tumor metastasis,pathological diagnosis and serum carcinocmbryonic antigen (CEA) levels were the prognostic factors of colorectal cancer.Conclusion The Duke stage,tumor metastasis,pathological diagnosis and CEA levels are the prognostic factors of colorectal cancer,which should be considered in the choice of clinical treatment and prognosis judgement.
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TiO2 coated hollow fiber ( HF) was prepared by sol-gel method and characterized by X-ray powder diffraction and scanning electron microscope. The adsorption performances of the self-prepared TiO2 coated HF for interest metal ions were explored. The sample solution was extracted for 30 min at pH 8. 0 under stirring at speed of 700 r/min, then desorpted with 100μL of 1 mol/L HNO3 . On the basis of this, a method combining TiO2 coated HF micro-solid phase extraction with electrothermal vaporization-inductively coupled plasma mass spectrometry ( ICP-MS ) was developed for the determination of trace metal ions in environmental water samples. Under the optimized conditions, the limits of detection obtained by the proposed method were 0. 039, 0 . 021 , 0 . 009 and 0 . 018 ng/mL for CrⅢ, CuⅡ, CdⅡ and PbⅡ with enrichment factors of 12 . 5 , 11 . 7 , 10. 3 and 18. 6, respectively. The preparation reproducibility of self-prepared TiO2 coated HF ranged from 4. 5% to 6. 8% (n=9) in one batch, and from 7. 7% to 9. 6% (n=7) in batch-to-batch. The developed method has been validated by analyzing a certified reference material ( GSBZ50009-88 200925 ) and also applied to the analysis of CrⅢ, CuⅡ, CdⅡ and PbⅡ in East Lake water and snow water successfully. Meanwhile, TiO2 coated HF stir bar was prepared for a comparison and it was demonstrated that TiO2 coated HF displayed higher extraction efficiency and adsorption capacity for target ions.
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Objective:To analyze the effect of MCT/LCT fat emulsions at different doses on the growth and development of prema-ture and low birth weight infants. Methods: Totally 76 cases of preterm or low birth weight infants were divided into the treatment group (40 cases) and the control group (36 cases), both groups were given MCT/LCT fat emulsions, amino acid and glucose injec-tions in 12-24 h after the birth. The initial dose of MCT/LCT fat emulsions in the treatment group was 2. 0 g·kg-1 ·d-1 and the dose was gradually increased to 3. 0 g·kg-1 ·d-1 with 0. 5 g·kg-1 ·d-1 progressive increase. The initial dose of MCT/LCT fat emulsions in the control group was 0. 5 g·kg-1 ·d-1 , and the dose was increased to 3. 0 g·kg-1 ·d-1 with 0. 5 g·kg-1 ·d-1 progressive in-crease. The treatment course was 7 days. The neonatal weight, serum total bilirubin, direct bilirubin, alanine aminotransferase, total cholesterol, triacylglycerol and blood glucose were monitored in the two groups. Results:The born body mass recovery time of the ob-servation group was (4. 38+0. 93) d, which was significantly shorter than that in the control group [(6. 81+1. 90) d]. After the re-covery, the body weight growth rate of the observation group was (30. 41+1. 81) g·kg-1 ·d-1 , which was significantly higher than that of the control group [(18. 21 +2. 08) g·kg-1 ·d-1, P 0. 05). Conclusion:Early application of MCT/LCT fat emul-sions at high dose is beneficial to the improvement of nutritional status in premature infants.
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Dexmedetomidine (Dex) has been demonstrated to provide neuroprotective effect against brain injury in the central nervous system. However, the underlying mechanism of this neuroprotection remains unclear. In this study, we explored whether Dex has the protective potential in rat models of traumatic brain injury(TBI). More importantly, our study further investigated the role of neuronic autophagy induced by PI3K/Akt/mTOR pathway in this neuroprotective action. Adult male Sprague-Dawley rats were subjected to a diffuse cortical impact injury caused by a modified weight-drop device and Dex (15ug/kg, i.v.) was administered immediately after TBI. Wet-dry weight method was used to evaluate brain edema. Motor function outcome was assessed by Neurologic Severity Score and the spatial learning ability was evaluated in a Morris water maze. The co-localization of microtubule-associated protein 1 light chain 3(LC3) and neuronal nuclei (NeuN), or LC3 and mammalian target of rapamycin (mTOR) were analyzed by immunofluorescence respectively. The expression of LC3, Phosphorylated protein kinase B (p-Akt) and p-mTOR were quantified using Western blot analysis. Our results showed treatment of rats exposed to TBI with Dex caused not only marked reduction in cerebral edema, motor and cognitive functions deficits, but also a decrease in LC3 levels and a increase in p-Akt and p-mTOR levels. Taken together, these findings indicated that treatment with Dex after TBI could inhibited neuronic autophagy in the hippocampus mediated by the activation of the PI3K/Akt/mTOR pathway, finally promoting neurological recovery.
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Objective To analyze the constitution of in-patient death causes in Sharxi Cancer Hospital from 2005 to 2010. Method Statistical analysis of 1277 hospitalized cases from 2005 to 2010 in Shanxi Cancer Hospital was retrospectively conducted. Results The overall case fatality rate of hospitalized patients from 2005 to 2010 was 0.86 % (1277/146820),the rates were 1.16 %,1.05 %,0.99 %,0.85 %,0.84 %, 0.64 %, respectively, with a declining trend, and the differences among them was statistically significance (x2 =45.763,P <0.001).Total mortality rate of male hospitalized patients (1.26%) was higher than that of women (0.53%),and the difference was statistically significant (x2=215.367,P< 0.001).Analysis of cancer death cause revealed that lung cancer possessed the leading cause of cancer death with the ratio of 36.4%(456/1253). The analysis of top 10 death causes showed that the majority of the population in cancer death causes were men,cadres of staff and workers,secondary school education level people,and people over the age of 60. Conclusion The consitution of in-patient deaths in Shanxi Cancer Hospital is defined, which could provide a scientific basis for disease prevention and control.
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Objective To explore the effect of positive end expiratory pressure (PEEP) on arterial oxygenation and intrapulmonary shunt during one-lung ventilation (OLV) and pulmonary function during perioperation. Methods Forty patients with normal pulmonary function,ASA I - II :scheduled for pulmonary lobectomy, were divided into control group and PEEP group by random digits table with 20 cases each. Patients were induced by double-lumen tubes under intravenous anesthesia and were received 10 ml/kg tidal volume, 12 frequents/min breathing rate during the two-lung ventilation (TLV), secondary reduced to 6 ml/kg tidal volume, 16-18 frequents/min breathing rate without PEEP (control group) or with 5 cm H2O cm H2O =0.098 kPa) PEEP (PEEP group) during OLV.Hemodynamics and respiratory mechanical parameters were continuously monitored, lung function before operation and at 72 h after operation was detected. Results Compared to before OLV,arterial oxygen tension (PaO2), arterial oxygen saturation (SpO2), oxygenation index (OI) were decreased and intrapulmonary shunt ratio (Qs/Qt) was increased in control group and PEEP group at 30 min after OLV (P < 0.01 or < 0.05). However,PaO2 and SpO2 and OI were higher and Qs/Qt was lower in PEEP group than that in control group at the same time point (P<0.05). In addition, FEV1%, FVC% and FEV1/FVC were (121.8 ± 25.0% ,(117.2 ± 24.3)% , (87.6 ± 15.7)%before operation and (84.9 ± 21.6)%, (77.2 ± 18.3)% , (70.5 ± 12.5)% at 72 h after operation respectively in control group, (116.9 ±24.5)% , (112.1 ±23.6)% , (85.3 ± 13.8)% before operation and (96.3 ± 20.4)%, (88.1 ± 19.8)% , (78.4 ± 10.2)% at 72 h after operation respectively in PEEP group. Although decreased in control group and PEEP group at 72 h after operation comparing with preoperation (P< 0.01 or < 0.05 ), FEV1%, FVC% and FEV1/FVC were higher in PEEP group than those in control group at 72 h after operation (P<0.05). Conclusion Appropriate PEEP increases arterial oxygenation,reduces Qs/Qt and improves pulmonary function during OLV,reduces the risk of hypoxernia and lung injury induced by OLV during perioperation.
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Objective To investigate the effects of intra-articular hyaluronan(HA)injection on the expression of cartilage oligomeric matrix protein(COMP)in synovium of strenuous running rats,and investigate the possibility of predicting the effectiveness of HA based on COMP in synovium.Methods 36 healthy male Wistar rats were randomly divided into control group,strenuous running group and strenuous running group and HA injection group.Strenuous running group and HA injection group were intra- articularly injected with HA once a week for 5 consecutive weeks.The histological changes of synovium of knee joint was examined by H.E.staining and immunohistochemical expression of COMP in three groups after 6 weeks' strenuous running.Results Synovial inflammation was less severe in strenuous running and HA injection group than strenuous running group(t =7.15,P <0.01).The immunohistochemical expression of COMP in rats'synovium of knee joint in strenuous running and HA injection group was significantly lower than that in rats'synovium in strenuous running group(t = 6.30,P < 0.01).Conclusions Intra- articular HA injection suppressed synovitis,and the expression of COMP in synovium could be used to predict the effectiveness of HA.
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@#Recently, Toll-like receptor 4 (TLR4) passway has been found to play an important role in the inflammation injury after cerebral infarction, and exercise seems to induce a downregulation of TLR4 expression in various tissues. It is possible that TLR4 plays an important role in the mechanism of rehabilitation after a cerebral infarction.
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Objective To explore the regulation of ROS level and ROS-triggered downstream events on SK-N-MC Ewing sarcoma cells upon apoptasis induction by 2-Methoxyestradiol (2-ME). Methods To detect the reversibility of apoptosis and the alternation of activity of respiratory chain, mitechondria transmembrane potential (△ψm), and cellular ROS level and to explore their association with flow cytometry, clark oxygen electronic node analysis, drug-removal design, and permeability transition (PT) pore stablizing agent. Results SK-N-MC cells were induced to ROS-dependent apoptosis. Apoptosis occured irreversibly after2-ME treatment for 3 h. Upon 2-ME treatment, the activity of respiratory chain was inhibited and the ROS generation was accelerated; the △ψm underwent the increasing within 3h but decreasing after 3h which could be reversed by PT pore stablizing; the ROS level underwent the continuous increasing and PT pore stablizing had no obvious effect on it. Conclusion 2-ME causes the acceleration of ROS generation via inhibiting the activity of respiratory chain and elevating the level of △ψm. ROS plays a signaling role and when total ROS accumulate to a threshold, the PT pore opening and the collapse of △ψm could be induced irreversibly and cell is eventually introduced to death.
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Objective To investigate the effect of telmisartan on the oxidative stress induced by high glucose in human umbilical vein endothelial cell (HUVEC) in vitro.Methods HUVEC were cocultured with telmisartan (1?10~(-6) mol/L) and various concentration of glucose(5,30 mmol/L) for 0,12,24,36,48 h respectively. The level of MDA in the supernatants of cultured endothelial cells was measured by thiobarbituric acid test,SOD was determined by xanthine oxidase test.The protein expression of peroxisome proliferator activated receptors ? (PPAR-?) in HUVEC 24 h was assessed by Western blot after treatments.Results High glucose significantly increase the levels of MDA (before:1.2?0.06 vs after:1.6?0.1 mmol/mL,P
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Objective:To investigate the influence of metastasis suppressor gene KAI1 on the proliferation,invasion and metastasis of endometrial carcinoma cell line AN3CA and HEC-1-B.Methods:The KAI1 cDNA was transfected into human endometrial carcinoma cells AN3CA and HEC-1-B via Lipofectamine 2000.The expression of KAI1 protein was ex- amined by Western blotting and flow cytometry before and after transfection.The proliferation ability of AN3CA and HEC- 1-B cells was observed by MTT assay and anchorage-independent growth assay.The changes of cell invasive ability were studied by transwell assays.Results:Stable expression of KAI1 protein was observed in AN3CA and HEC-1-B cells and on their surface after transfection with pcDNA3-KAI1 plasmid.Cells transfected with blank plasmid formed more colonies and had a larger size,with the colony forming rates being(54.2?3.1)% for AN3CA cells and(52.7?4.3)% for HEC- 1- B cells;the doubling time of AN3CA and HEC-1-B cells were 21.3 h and 20.1 h,respectively.Cells transfected with pcDNA3-KAI1 formed less colonies and had a smaller size,with the colony forming rates being(37.4?5.1)% for AN3CA cells and(32.1?3.7)% for HEC-1-B cells;the doubling time of AN3CA and HEC-1-B cells were 43.7h and 45.2 h,respectively.The cell proliferation abilities and colony-forming ability were significantly different between the two groups(P
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Objective To investigate the hemodynamics and structural effect of rat endothelial progenitor cells (EPC) transplant on pulmonary artery hypertension (PAH) induced by monocrotaline(MCT) in rats.Methods EPCs were identified and marked.Twenty-one days after injection of EPCs,the pulmonary hemodynamic parame- ters,average pulmonary artery pressure (mPAP),right heart index were determined.The vascular endothelial cells and pulmonary vascular structural changes were verified by fluoresccuse microscope.Results Compared with the model,EPCs treatment(n=10) decreased mPAP significantly (mPAP,EPCs:25.9?0.7 mmHg vs model group:29.3?2.2 mmHg,P
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Objective To investigate the expression and significance of myeloperoxidase(MPO) in acute lungs injury of severe acute pancreatitis associated ascetic fluid. Methods Forty-five adult wistar rats were randomly assigned into the group of negative control (group C,n=15),the group of severe acute pancreatitis (group S,n=15) and the group of peritoneal injection (group E,n=15). The group C was cut peritoneum and flipped pancreases softly. In group S,3.5% sodium taurocholate was injected retrograde in pancreatic and bile duct to establish the model of severe acute pancreatitis,and the pancreatic homogenate and ascites of the group S was injected into abdominal cavity of group E rats. After animal model established,rats were killed at 3h,6h and 12h point. The blood of inferior vena cava was sucked for determination of amylase.The inferior lobe of left lung was cut for myeloperoxidase detection.And pathology was regularly done about pancreas and lungs. Results Interstitial edema,hemorrhage and infiltration of neutrophilic granulocyte and macrophage were observed in group S and E. At different time point,the amylase levels of blood and myeloperoxidase of lungs in group S and E were significantly higher than those of group C,and the increasing degree of group E was smaller than group S. Conclusion Acute lung injury can be induced by the severe acute pancreatitis associated ascetic fluid. The expression of myeloperoxidase of lungs was increased to induce acute lungs injury.The reason may be concerned with activation of granulocyte by severe acute pancreatitis associated ascetic fluid.