Hepatocellular carcinoma is prone to invasion and metastasis.It often receives a low diagnosis rate in the early stage but has an extremely high mortality rate.Epithelial-mesenchymal transformation(EMT)is a key factor...Hepatocellular carcinoma is prone to invasion and metastasis.It often receives a low diagnosis rate in the early stage but has an extremely high mortality rate.Epithelial-mesenchymal transformation(EMT)is a key factor in promoting tumor cell invasion and metastasis.Circular RNA(circRNA)is involved in regulating EMT in hepatocarcinoma cells through multiple pathways,thereby affecting the occurrence and progression of hepatocellular carcinoma.This article mainly reviews the research progress of circRNA related to EMT core transcription factors,circRNA that promotes EMT in liver cancer,and circRNA that inhibits EMT in liver cancer.展开更多
Yu Gan Long(YGL)is a Chinese traditional herbal formula which has been reported to attenuate liver fibrosis for many years and we have explored its anti-fibrotic mechanism through blocking transforming growth factor(T...Yu Gan Long(YGL)is a Chinese traditional herbal formula which has been reported to attenuate liver fibrosis for many years and we have explored its anti-fibrotic mechanism through blocking transforming growth factor(TGF-β)in the previous study.But the mechanisms associated with platelet-derived growth factor(PDGF)-BB remain obscure.In this study,we further investigated the mechanism of YGL reducing carbon tetrachloride(CCl4)-induced liver fibrosis in rats.Our results showed that YGL suppressed CCl4-induced upregulation of collagen IV(Col IV),type HI precollagen(PCHI),hyaluronuc acid(HA)and laminin(LN),which are implicated in liver fibrosis.Also,YGL reduced theα-smooth muscle actin(α-SMA)expression,which acts as the indicator of liver fibrosis.Furthermore,YGL decreased the serum levels of hepatic stellate cell(HSC)mitogen PDGF-BB and inflammation cytokines,including TNF-α,IL-1β,IL-6.Markers involved in liver fibrosis,such as Ras,p-Raf-1,p-ERK1/2,p-JNK,p-P38,p-PI3K,p-AKT,p-JAKl,p-STAT3 were downregulated significantly after treatment with YGL.Our results indicated that YGL ameliorated CCl4-induced liver fibrosis by reducing inflammation cytokines production,and suppressing Ras/ERK,PI3K/AKT,and JAK1/STAT3 signaling pathways,which provided further evidence towards elucidation of the anti-fibrotic mechanism of YGL.展开更多
作为微电子器件的理想电源,全固态薄膜锂电池(TFB)已经被广泛地研究了几十年,并开始进入商业化应用。然而,目前关于失效TFB的回收与再利用的研究几乎没有,这将会阻碍TFB的可持续发展。本工作针对因金属锂负极失效而造成电池失效的TFB,...作为微电子器件的理想电源,全固态薄膜锂电池(TFB)已经被广泛地研究了几十年,并开始进入商业化应用。然而,目前关于失效TFB的回收与再利用的研究几乎没有,这将会阻碍TFB的可持续发展。本工作针对因金属锂负极失效而造成电池失效的TFB,提出了一种简单的基于最常见LiCoO_(2)(LCO)/LiPON/LiTFB(F-TFB)的直接回收再利用的方法。研究发现,F-TFB中的金属锂负极薄膜在循环过程会被部分氧化从而造成电池失效。我们提出利用无水乙醇溶液有效地溶解并去除F-TFB上失效的金属锂负极部分,从而快速地回收底层的LCO/LiPON薄膜。结构分析和表面分析结果表明,回收的LCO/LiPON薄膜中的LCO正极的晶体结构、LCO/LiPON的界面结构以及LiPON电解质的表面保持完好,使其再利用成为了可能。进一步地,我们在回收的LCO/LiPON薄膜上依次沉积了LiPON和Li薄膜,构建得到了电化学性能恢复的LCO/LiPON/LiTFB,并获得了与新制备的TFB相一致的比容量(0.223 m Ah·cm^(-2))、良好的倍率性能和循环寿命(500次循环后容量保持率为77.3%)。这种简单而有效的回收再利用方法有望延长固态电池的使用寿命,减少能源和资源消耗,促进固态电池的可持续发展。展开更多
<strong>Objective: </strong><span style="font-family:""><span style="font-family:Verdana;">To investigate the clinical effects of</span><a name="_Hlk26140...<strong>Objective: </strong><span style="font-family:""><span style="font-family:Verdana;">To investigate the clinical effects of</span><a name="_Hlk26140736"></a><span style="font-family:Verdana;"> recombinant human interleukin-2 (rhIL-2) combined with </span><a name="_Hlk26140744"></a><span style="font-family:Verdana;">Zhenqi Fuzheng and Baofukang on cervical intraepithelial neoplasia II (CINII) combined with human papilloma virus infection. </span><b><span style="font-family:Verdana;">Methods: </span></b><span style="font-family:Verdana;">There were 593 patients diagnosed with CINII with HPV infection, including 296 in the control group and 297 in the experimental group. The control group was given only Zhenqi Fuzheng oral and Baofukang suppository vaginal medicine. The experimental group was treated with rhIL-2 injection in addition to Zhenqi Fuzheng oral and Baofukang suppository vaginal medicine which is treated for 3 months. After 3 months, Thinprep cytologic test (TCT), human papilloma virus (HPV) quantitative examination and colposcopy biopsy were reviewed. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> After 3 months of treatment, the negative conversion rate and total effective rate of HPV in the control group were 58.11% and 70.95% respectively, and the negative conversion rate and total effective rate of the experimental group were 79.46% and 90.57% respectively. There was significant difference between the two groups (p = 0.000). The curative rate of cervical lesions was significantly higher in the test group than in the control group, 89.56%, 68.91%, respectively. The statistical difference between the two groups is significant (p = 0.000). </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> It has an essential clinical value that HPV infection patients and cervical intraepithelial neoplasia II associated with </span><a name="_Hlk47768779"></a><span style="font-family:Verdana;">HPV infection patients are treated by rhIL-2 combined with Zhenqifuzheng and Baofukang, </span><a name="_Hlk47805707"></a><span style="font-family:Verdana;">which is safe, effective, non-invasive, reusable advantages. However, the long-term efficacy and side effects need to be further studied.</span></span>展开更多
Diabetic nephropathy(DN)accounts for approximately 20-40%of diabetic patients.It is one of the most common microvascular complications of diabetes and an important cause of end-stage renal disease(ESRD).Renal biopsy h...Diabetic nephropathy(DN)accounts for approximately 20-40%of diabetic patients.It is one of the most common microvascular complications of diabetes and an important cause of end-stage renal disease(ESRD).Renal biopsy histopathology is an important means for early clinical diagnosis of DN,but because it is an invasive examination,it is not easily accepted by patients due to risks such as bleeding,infection,and thrombosis.Therefore,finding new biomarkers for diagnosing DN is of great significance for early treatment and improving patient prognosis.MicroRNA(miRNA)is a type of highly conserved endogenous non-coding RNA.More and more studies have shown that miRNA is involved in the pathological process of DN and renal fibrosis.This article summarizes the relevant research on miRNA in DN.展开更多
<b>Background: </b>Though painless abortion is a safe, effective and excellent method of artificial abortion, intravenous anesthesia cannot effectively expand the cervix. Hard and tight cervix often affect...<b>Background: </b>Though painless abortion is a safe, effective and excellent method of artificial abortion, intravenous anesthesia cannot effectively expand the cervix. Hard and tight cervix often affects the operation and easily inducesabortion complications. Misoprostol can induce uterine contraction and soften the cervix. <b>Objective:</b> To investigate the clinical effect of misoprostol on abortion before and after painless induced abortion. <b>Methods:</b> 600 case pregnant women were divided into three groups: A, B and C, 200 case in each group. All patients were anesthetized. In group A, misoprostol 0.2 ug was placed in the posterior fornix of vagina 2 hours before the operation of induced abortion;in group B, misoprostol 0.2 ug was not only placed in the posterior fornix of vagina 2 hours before the operation of induced abortion but also taken orally 2 hours and 6 hours after the operation;in group C, misoprostol was not used before and after the operation. The operation time, intraoperative bleeding volume, postoperative bleeding, the percentage of cervical relaxation and the rate of incomplete abortion among the three groups were compared. <b>Results:</b> Compared with group A and group B, the operation time of group C was longer and the amount of bleeding was more (P < 0.05), but there was no significant difference between group A and group B (P > 0.05). The duration of bleeding in group B was less than that in group A (P < 0.05). The percentage of cervical relaxation in group A and B was higher than that in group C (P < 0.05). The rate of incomplete abortion in group B < group A < group C (P < 0.05), and there was no residual uterine cavity in group B. <b>Conclusion:</b> The use of misoprostol before and after painless induced abortion can not only shorten the time of operation, reduce intraoperative and postoperative vaginal bleeding, but also has not incurred incomplete abortion(primary outcome).展开更多
The“New Medical Education”is a new requirement for the development of medical education in the new era.As a key and core element of the construction of the“New Medical Education,”the engagement in teaching work of...The“New Medical Education”is a new requirement for the development of medical education in the new era.As a key and core element of the construction of the“New Medical Education,”the engagement in teaching work of university teachers is a key issue that determines the level of teaching development of university teachers and affects the quality of talent cultivation in universities.Using the literature review method,this study analyzed 39 relevant literatures retrieved from China National Knowledge Infrastructure(CNKI)from 1997 to 2023.The concept,connotation,current situation,influencing factors,and improvement strategies of teaching engagement by university teachers were reviewed and summarized.The results showed that the issue of teaching engagement by university teachers has not received high attention in the field of higher education,especially in higher medical education,which has not yet been reported.Although the overall number of literature is not large,some of the conclusions have important implications for the next research on the influencing factors and mechanisms of double-qualified teacher engagement in higher medical colleges.展开更多
Objective:To build a set of teaching staff construction and teaching quality monitoring system suitable for clinical practice teaching in affiliated hospitals of medical colleges,achieve continuous improvement of clin...Objective:To build a set of teaching staff construction and teaching quality monitoring system suitable for clinical practice teaching in affiliated hospitals of medical colleges,achieve continuous improvement of clinical education and teaching level,and ensure the quality of medical education talent cultivation.Methods:A modern clinical practice teaching quality monitoring system is constructed based on organizational structure construction,teaching staff system construction,quality control system construction,and information platform construction,combined with external audit and evaluation.Results:The hospital has established a Faculty Development and Teaching Evaluation Office specifically responsible for the cultivation of clinical teachers and the evaluation and supervision of teaching quality.A relatively complete teacher construction and teaching quality monitoring system has also been established for clinical practice teaching,thus achieving integration with the school’s quality control system in terms of management mechanism.At the same time,a set of teaching quality control mode based on the“Internet+”platform has been created by means of informatization.At present,this mode has won three national computer software copyrights and two second prizes for school-level teaching achievements.Conclusion:Through five years of practice,an“Internet+”teaching quality evaluation and monitoring system with the characteristics of teaching hospitals affiliated to local medical colleges has been established.In order to further standardize the training system of clinical teachers in affiliated hospitals,achieve self-monitoring and self-improvement in terms of teaching quality,and ensure the continuous improvement of clinical teaching quality,we will continue to promote the development of clinical teachers with quality and excellence,enrich the main team of quality monitoring,guide the transformation of the education mode from being“centered on teachers”to being“centered on students,”and realize the integration of internal and external quality monitoring systems.展开更多
<strong>Objective:</strong><span><span><span style="font-family:""><span style="font-family:Verdana;"> To investigate the effect of aspirin on pregnancy out...<strong>Objective:</strong><span><span><span style="font-family:""><span style="font-family:Verdana;"> To investigate the effect of aspirin on pregnancy outcome and serum levels of endothelin-1 (ET-1) and thrombomodulin (TM) in pregnancy patients with chronic hypertension. </span><b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:Verdana;"> Selected patients with chronic hypertension (mild to moderate) during pregnancy, who were enrolled and delivered in the Beijing Tongren Hospital Department of Obstetrics and Gynecology between January 1, 2019 and December 30, 2020. The patients were randomly divided into control group (60) and experimental group (60). The control group was treated with labetalol and the test group was treated with labetalol and aspirin. The therapeutic effect and pregnancy outcome of the two groups were compared. The serum levels of ET-1 and TM were measured before treatment and one week after treatment. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> Systolic blood pressure (SBP) decreased significantly one week after treatment in the two groups (P < 0.05). One week after treatment, the values of ET-1 and TM in the experimental group were significantly lower than those in the Control Group, the difference is statistically significant (P < 0.05). The incidence of Preeclampsia, intrauterine growth retardation, oligohydramnios, placental abruption, Cesarean section and preterm birth in the experimental group was significantly lower than that in the control group. There was significant difference between the two groups, especially Preeclampsia and Intrauterine Growth Retardation (P < 0.05). </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> Besides routine treatment, aspirin can improve the outcome of pregnant women with chronic hypertension, which may be related to the regulation of ET-1 and TM by aspirin.</span></span></span></span>展开更多
Objective: To investigate the role of IL-2, IL-4, IL-10 and IFN-γ cytokines in the microenvironment of cervical intraepithelial neoplasia. Methods: 180 patients participating were enrolled in this trial, where 50 cas...Objective: To investigate the role of IL-2, IL-4, IL-10 and IFN-γ cytokines in the microenvironment of cervical intraepithelial neoplasia. Methods: 180 patients participating were enrolled in this trial, where 50 cases are in control group, 50 cases are in low-grade squamous intraepithelial lesion (LSIL) group, 50 cases are in high-grade squamous intraepithelial lesion (HSIL) group, and 30 cases have cervical carcinoma. ELISA methods are used to detect the expression of IL-2, IL-4, IL-10 and IFN-γ in the lavage fluid, and all data is analyzed using one-way analysis of variance. Results: The expression of IL-2 and IFN-γ in cervical lavage fluid gradually decreases with the aggravation of the lesion. The expression of IL-4 and IL-10 increases by the aggravation of pathological changes. There were statistically significant differences in IL-2 level among the four groups. IFN-γ levels are significantly different between the cervical cancer group and the other groups, also between HSIL and LSIL group, and between HSIL and the control group, but no statistically significant difference was observed in IFN-γ e between LSIL and the control group. The expressions of IL-4 and IL-10 between the cervical cancer group and the other groups were significantly different, and also between HSIL and the control group. But there was no statistically significant difference between LSIL and the control group, HSIL and LSIL. Conclusion: The cytokines of IL-2, IL-4, IL-10 and IFN-γ in the microenvironment of the cervix play an important role in the occurrence and development of cervical intraepithelial neoplasia. This study may provide the evidence for diagnosis and treatment of cervical intraepithelial neoplasia.展开更多
Objective: To determine whether Interferon-alpha-2b(IFN-α2b) can modulate the autophagic response in hepatocellular carcinoma cells.Methods: Hepatocellular carcinoma cells were treated with IFN-α2b. Autophagy was as...Objective: To determine whether Interferon-alpha-2b(IFN-α2b) can modulate the autophagic response in hepatocellular carcinoma cells.Methods: Hepatocellular carcinoma cells were treated with IFN-α2b. Autophagy was assessed by acridine orange staining, GFP-LC3 dotted assay, transmission electron microscopy and immunoblotting.Results: Acridine orange staining showed that IFN-α2b triggered the accumulation of acidic vesicular and autolysosomes in HepG2 cells. The acridine orange HepG2 cell ratios were(4.3±1.0)%,(6.9±1.4)%, and(13.1±2.3)%, respectively, after treatment with 100, 1,000, and 10,000 IU/mL IFN-α2b for 48 h. A markedly punctate pattern was observed in HepG2 cells treated with 10,000 IU/mL IFN-α2b for 48 h, but only diffuse and weakly fluorescent GFP-LC3 puncta was observed in control cells. HepG2 cells treated with 10,000 IU/mL IFN-α2b for 48 h developed autophagosome-like characteristics, including single- or double-membrane vacuoles containing intact and degraded cellular debris. The Beclin1 and LC3-II protein expression was up-regulated by IFN-α2b treatment.Conclusion: Autophagy can be induced in a dose-dependent manner by treatment with IFN-α2b in HepG2 cells, and the Beclin1 signaling pathway was stimulated by IFN-α2b.展开更多
Background: The purpose is to investigate the relationship between full-thickness macular hole(MH) and retinal break(RB) and/or lattice degeneration.Methods: Patients diagnosed as full-thickness MH and referred to Dr....Background: The purpose is to investigate the relationship between full-thickness macular hole(MH) and retinal break(RB) and/or lattice degeneration.Methods: Patients diagnosed as full-thickness MH and referred to Dr. Lin Lu from January 2009 to December 2013 were evaluated. All patients underwent general ophthalmologic examinations, fundus examination and optical coherence tomography(OCT). The RB and/or lattice degeneration were recorded.Results: Totally 183 eyes of 167 patients were included. The sex ratio of men to women was 1:2.88. A total of 17 eyes were pseudophakic and 166 eyes were phakic. RB and/or lattice degeneration were found in 62 eyes(33.88%). The prevalence of RB and/or lattice degeneration was similar between men and women(P=0.344>0.05). There was no statistical difference between the pseudophakic eyes and phakic eyes(P=0.138>0.05). All of the RB and/or lattice degeneration were located near or anterior to the equator. The inferior quadrants and the vertical meridian were af ected more often than the superior quadrants and the horizontal meridian.Conclusions: We identified a high incidence of RB/lattice degeneration in cases of full-thickness MH. Carefully examination of the peripheral retina and prophylactic treatment of RB and/or lattice degeneration are critical.展开更多
基金Medical Research Project of Xi’an Science and Technology Bureau(Project No.22YXYJ0134)。
文摘Hepatocellular carcinoma is prone to invasion and metastasis.It often receives a low diagnosis rate in the early stage but has an extremely high mortality rate.Epithelial-mesenchymal transformation(EMT)is a key factor in promoting tumor cell invasion and metastasis.Circular RNA(circRNA)is involved in regulating EMT in hepatocarcinoma cells through multiple pathways,thereby affecting the occurrence and progression of hepatocellular carcinoma.This article mainly reviews the research progress of circRNA related to EMT core transcription factors,circRNA that promotes EMT in liver cancer,and circRNA that inhibits EMT in liver cancer.
基金This study was supported by grants from China Postdoctoral Science Foundation(No.2016M592320,No.2016M600670)Hubei Provincial Natural Science Foundation of China(No.2018CFB657)the National Natural Science Foundation of China(No.81601605).
文摘Yu Gan Long(YGL)is a Chinese traditional herbal formula which has been reported to attenuate liver fibrosis for many years and we have explored its anti-fibrotic mechanism through blocking transforming growth factor(TGF-β)in the previous study.But the mechanisms associated with platelet-derived growth factor(PDGF)-BB remain obscure.In this study,we further investigated the mechanism of YGL reducing carbon tetrachloride(CCl4)-induced liver fibrosis in rats.Our results showed that YGL suppressed CCl4-induced upregulation of collagen IV(Col IV),type HI precollagen(PCHI),hyaluronuc acid(HA)and laminin(LN),which are implicated in liver fibrosis.Also,YGL reduced theα-smooth muscle actin(α-SMA)expression,which acts as the indicator of liver fibrosis.Furthermore,YGL decreased the serum levels of hepatic stellate cell(HSC)mitogen PDGF-BB and inflammation cytokines,including TNF-α,IL-1β,IL-6.Markers involved in liver fibrosis,such as Ras,p-Raf-1,p-ERK1/2,p-JNK,p-P38,p-PI3K,p-AKT,p-JAKl,p-STAT3 were downregulated significantly after treatment with YGL.Our results indicated that YGL ameliorated CCl4-induced liver fibrosis by reducing inflammation cytokines production,and suppressing Ras/ERK,PI3K/AKT,and JAK1/STAT3 signaling pathways,which provided further evidence towards elucidation of the anti-fibrotic mechanism of YGL.
文摘作为微电子器件的理想电源,全固态薄膜锂电池(TFB)已经被广泛地研究了几十年,并开始进入商业化应用。然而,目前关于失效TFB的回收与再利用的研究几乎没有,这将会阻碍TFB的可持续发展。本工作针对因金属锂负极失效而造成电池失效的TFB,提出了一种简单的基于最常见LiCoO_(2)(LCO)/LiPON/LiTFB(F-TFB)的直接回收再利用的方法。研究发现,F-TFB中的金属锂负极薄膜在循环过程会被部分氧化从而造成电池失效。我们提出利用无水乙醇溶液有效地溶解并去除F-TFB上失效的金属锂负极部分,从而快速地回收底层的LCO/LiPON薄膜。结构分析和表面分析结果表明,回收的LCO/LiPON薄膜中的LCO正极的晶体结构、LCO/LiPON的界面结构以及LiPON电解质的表面保持完好,使其再利用成为了可能。进一步地,我们在回收的LCO/LiPON薄膜上依次沉积了LiPON和Li薄膜,构建得到了电化学性能恢复的LCO/LiPON/LiTFB,并获得了与新制备的TFB相一致的比容量(0.223 m Ah·cm^(-2))、良好的倍率性能和循环寿命(500次循环后容量保持率为77.3%)。这种简单而有效的回收再利用方法有望延长固态电池的使用寿命,减少能源和资源消耗,促进固态电池的可持续发展。
文摘<strong>Objective: </strong><span style="font-family:""><span style="font-family:Verdana;">To investigate the clinical effects of</span><a name="_Hlk26140736"></a><span style="font-family:Verdana;"> recombinant human interleukin-2 (rhIL-2) combined with </span><a name="_Hlk26140744"></a><span style="font-family:Verdana;">Zhenqi Fuzheng and Baofukang on cervical intraepithelial neoplasia II (CINII) combined with human papilloma virus infection. </span><b><span style="font-family:Verdana;">Methods: </span></b><span style="font-family:Verdana;">There were 593 patients diagnosed with CINII with HPV infection, including 296 in the control group and 297 in the experimental group. The control group was given only Zhenqi Fuzheng oral and Baofukang suppository vaginal medicine. The experimental group was treated with rhIL-2 injection in addition to Zhenqi Fuzheng oral and Baofukang suppository vaginal medicine which is treated for 3 months. After 3 months, Thinprep cytologic test (TCT), human papilloma virus (HPV) quantitative examination and colposcopy biopsy were reviewed. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> After 3 months of treatment, the negative conversion rate and total effective rate of HPV in the control group were 58.11% and 70.95% respectively, and the negative conversion rate and total effective rate of the experimental group were 79.46% and 90.57% respectively. There was significant difference between the two groups (p = 0.000). The curative rate of cervical lesions was significantly higher in the test group than in the control group, 89.56%, 68.91%, respectively. The statistical difference between the two groups is significant (p = 0.000). </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> It has an essential clinical value that HPV infection patients and cervical intraepithelial neoplasia II associated with </span><a name="_Hlk47768779"></a><span style="font-family:Verdana;">HPV infection patients are treated by rhIL-2 combined with Zhenqifuzheng and Baofukang, </span><a name="_Hlk47805707"></a><span style="font-family:Verdana;">which is safe, effective, non-invasive, reusable advantages. However, the long-term efficacy and side effects need to be further studied.</span></span>
基金Medical Research Project of Xi’an Science and Technology Bureau(23YXYJ0111)。
文摘Diabetic nephropathy(DN)accounts for approximately 20-40%of diabetic patients.It is one of the most common microvascular complications of diabetes and an important cause of end-stage renal disease(ESRD).Renal biopsy histopathology is an important means for early clinical diagnosis of DN,but because it is an invasive examination,it is not easily accepted by patients due to risks such as bleeding,infection,and thrombosis.Therefore,finding new biomarkers for diagnosing DN is of great significance for early treatment and improving patient prognosis.MicroRNA(miRNA)is a type of highly conserved endogenous non-coding RNA.More and more studies have shown that miRNA is involved in the pathological process of DN and renal fibrosis.This article summarizes the relevant research on miRNA in DN.
文摘<b>Background: </b>Though painless abortion is a safe, effective and excellent method of artificial abortion, intravenous anesthesia cannot effectively expand the cervix. Hard and tight cervix often affects the operation and easily inducesabortion complications. Misoprostol can induce uterine contraction and soften the cervix. <b>Objective:</b> To investigate the clinical effect of misoprostol on abortion before and after painless induced abortion. <b>Methods:</b> 600 case pregnant women were divided into three groups: A, B and C, 200 case in each group. All patients were anesthetized. In group A, misoprostol 0.2 ug was placed in the posterior fornix of vagina 2 hours before the operation of induced abortion;in group B, misoprostol 0.2 ug was not only placed in the posterior fornix of vagina 2 hours before the operation of induced abortion but also taken orally 2 hours and 6 hours after the operation;in group C, misoprostol was not used before and after the operation. The operation time, intraoperative bleeding volume, postoperative bleeding, the percentage of cervical relaxation and the rate of incomplete abortion among the three groups were compared. <b>Results:</b> Compared with group A and group B, the operation time of group C was longer and the amount of bleeding was more (P < 0.05), but there was no significant difference between group A and group B (P > 0.05). The duration of bleeding in group B was less than that in group A (P < 0.05). The percentage of cervical relaxation in group A and B was higher than that in group C (P < 0.05). The rate of incomplete abortion in group B < group A < group C (P < 0.05), and there was no residual uterine cavity in group B. <b>Conclusion:</b> The use of misoprostol before and after painless induced abortion can not only shorten the time of operation, reduce intraoperative and postoperative vaginal bleeding, but also has not incurred incomplete abortion(primary outcome).
基金2022 Education and Teaching Reform Research Project of Xi’an Medical University,“Construction and Practice of Teaching Quality Assurance System in Three-Level Teaching Bases of General Practice Medicine Under the‘Internet+’Model”(Project number:2022JG-05)2021 Shaanxi Undergraduate and Higher Continuing Education Teaching Reform Research Project of Shaanxi Provincial Department of Education,“Construction of Teaching Staff Based on‘Online Learning Platform for Clinical Teachers of the First Affiliated Hospital of Xi’an Medical University’and Construction and Practice of Quality Assurance System”(Project number:21BZ066)。
文摘The“New Medical Education”is a new requirement for the development of medical education in the new era.As a key and core element of the construction of the“New Medical Education,”the engagement in teaching work of university teachers is a key issue that determines the level of teaching development of university teachers and affects the quality of talent cultivation in universities.Using the literature review method,this study analyzed 39 relevant literatures retrieved from China National Knowledge Infrastructure(CNKI)from 1997 to 2023.The concept,connotation,current situation,influencing factors,and improvement strategies of teaching engagement by university teachers were reviewed and summarized.The results showed that the issue of teaching engagement by university teachers has not received high attention in the field of higher education,especially in higher medical education,which has not yet been reported.Although the overall number of literature is not large,some of the conclusions have important implications for the next research on the influencing factors and mechanisms of double-qualified teacher engagement in higher medical colleges.
基金supported by the 2020 Education and Teaching Reform Research Project of Xi’an Medical University,“Construction of‘Double-Qualified’Teachers in Affiliated Hospitals Based on‘Online Learning Platform for Clinical Teachers’and Construction and Practice of Quality Assurance System”(Project Number:2020JG-02)the 2021 Shaanxi Undergraduate and Higher Continuing Education Teaching Reform Research Project of Shaanxi Provincial Department of Education,“Construction of Teaching Staff Based on‘Online Learning Platform for Clinical Teachers of the First Affiliated Hospital of Xi’an Medical University’and Construction and Practice of Quality Assurance System”(Project Number:21BZ066).
文摘Objective:To build a set of teaching staff construction and teaching quality monitoring system suitable for clinical practice teaching in affiliated hospitals of medical colleges,achieve continuous improvement of clinical education and teaching level,and ensure the quality of medical education talent cultivation.Methods:A modern clinical practice teaching quality monitoring system is constructed based on organizational structure construction,teaching staff system construction,quality control system construction,and information platform construction,combined with external audit and evaluation.Results:The hospital has established a Faculty Development and Teaching Evaluation Office specifically responsible for the cultivation of clinical teachers and the evaluation and supervision of teaching quality.A relatively complete teacher construction and teaching quality monitoring system has also been established for clinical practice teaching,thus achieving integration with the school’s quality control system in terms of management mechanism.At the same time,a set of teaching quality control mode based on the“Internet+”platform has been created by means of informatization.At present,this mode has won three national computer software copyrights and two second prizes for school-level teaching achievements.Conclusion:Through five years of practice,an“Internet+”teaching quality evaluation and monitoring system with the characteristics of teaching hospitals affiliated to local medical colleges has been established.In order to further standardize the training system of clinical teachers in affiliated hospitals,achieve self-monitoring and self-improvement in terms of teaching quality,and ensure the continuous improvement of clinical teaching quality,we will continue to promote the development of clinical teachers with quality and excellence,enrich the main team of quality monitoring,guide the transformation of the education mode from being“centered on teachers”to being“centered on students,”and realize the integration of internal and external quality monitoring systems.
文摘<strong>Objective:</strong><span><span><span style="font-family:""><span style="font-family:Verdana;"> To investigate the effect of aspirin on pregnancy outcome and serum levels of endothelin-1 (ET-1) and thrombomodulin (TM) in pregnancy patients with chronic hypertension. </span><b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:Verdana;"> Selected patients with chronic hypertension (mild to moderate) during pregnancy, who were enrolled and delivered in the Beijing Tongren Hospital Department of Obstetrics and Gynecology between January 1, 2019 and December 30, 2020. The patients were randomly divided into control group (60) and experimental group (60). The control group was treated with labetalol and the test group was treated with labetalol and aspirin. The therapeutic effect and pregnancy outcome of the two groups were compared. The serum levels of ET-1 and TM were measured before treatment and one week after treatment. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> Systolic blood pressure (SBP) decreased significantly one week after treatment in the two groups (P < 0.05). One week after treatment, the values of ET-1 and TM in the experimental group were significantly lower than those in the Control Group, the difference is statistically significant (P < 0.05). The incidence of Preeclampsia, intrauterine growth retardation, oligohydramnios, placental abruption, Cesarean section and preterm birth in the experimental group was significantly lower than that in the control group. There was significant difference between the two groups, especially Preeclampsia and Intrauterine Growth Retardation (P < 0.05). </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> Besides routine treatment, aspirin can improve the outcome of pregnant women with chronic hypertension, which may be related to the regulation of ET-1 and TM by aspirin.</span></span></span></span>
文摘Objective: To investigate the role of IL-2, IL-4, IL-10 and IFN-γ cytokines in the microenvironment of cervical intraepithelial neoplasia. Methods: 180 patients participating were enrolled in this trial, where 50 cases are in control group, 50 cases are in low-grade squamous intraepithelial lesion (LSIL) group, 50 cases are in high-grade squamous intraepithelial lesion (HSIL) group, and 30 cases have cervical carcinoma. ELISA methods are used to detect the expression of IL-2, IL-4, IL-10 and IFN-γ in the lavage fluid, and all data is analyzed using one-way analysis of variance. Results: The expression of IL-2 and IFN-γ in cervical lavage fluid gradually decreases with the aggravation of the lesion. The expression of IL-4 and IL-10 increases by the aggravation of pathological changes. There were statistically significant differences in IL-2 level among the four groups. IFN-γ levels are significantly different between the cervical cancer group and the other groups, also between HSIL and LSIL group, and between HSIL and the control group, but no statistically significant difference was observed in IFN-γ e between LSIL and the control group. The expressions of IL-4 and IL-10 between the cervical cancer group and the other groups were significantly different, and also between HSIL and the control group. But there was no statistically significant difference between LSIL and the control group, HSIL and LSIL. Conclusion: The cytokines of IL-2, IL-4, IL-10 and IFN-γ in the microenvironment of the cervix play an important role in the occurrence and development of cervical intraepithelial neoplasia. This study may provide the evidence for diagnosis and treatment of cervical intraepithelial neoplasia.
基金supported by grants from the Scientific Support Project of Anhui Province Education Department of China (Grant No. KJ2012ZD08 and KJ2012Z162)the National Scientific and Technological Support Projects of China (Grant No. 81101273)the National Natural Science Foundation of China (Grant No. 30872253)
文摘Objective: To determine whether Interferon-alpha-2b(IFN-α2b) can modulate the autophagic response in hepatocellular carcinoma cells.Methods: Hepatocellular carcinoma cells were treated with IFN-α2b. Autophagy was assessed by acridine orange staining, GFP-LC3 dotted assay, transmission electron microscopy and immunoblotting.Results: Acridine orange staining showed that IFN-α2b triggered the accumulation of acidic vesicular and autolysosomes in HepG2 cells. The acridine orange HepG2 cell ratios were(4.3±1.0)%,(6.9±1.4)%, and(13.1±2.3)%, respectively, after treatment with 100, 1,000, and 10,000 IU/mL IFN-α2b for 48 h. A markedly punctate pattern was observed in HepG2 cells treated with 10,000 IU/mL IFN-α2b for 48 h, but only diffuse and weakly fluorescent GFP-LC3 puncta was observed in control cells. HepG2 cells treated with 10,000 IU/mL IFN-α2b for 48 h developed autophagosome-like characteristics, including single- or double-membrane vacuoles containing intact and degraded cellular debris. The Beclin1 and LC3-II protein expression was up-regulated by IFN-α2b treatment.Conclusion: Autophagy can be induced in a dose-dependent manner by treatment with IFN-α2b in HepG2 cells, and the Beclin1 signaling pathway was stimulated by IFN-α2b.
基金supported by National Nature Science Foundation of China (NO.81170863)
文摘Background: The purpose is to investigate the relationship between full-thickness macular hole(MH) and retinal break(RB) and/or lattice degeneration.Methods: Patients diagnosed as full-thickness MH and referred to Dr. Lin Lu from January 2009 to December 2013 were evaluated. All patients underwent general ophthalmologic examinations, fundus examination and optical coherence tomography(OCT). The RB and/or lattice degeneration were recorded.Results: Totally 183 eyes of 167 patients were included. The sex ratio of men to women was 1:2.88. A total of 17 eyes were pseudophakic and 166 eyes were phakic. RB and/or lattice degeneration were found in 62 eyes(33.88%). The prevalence of RB and/or lattice degeneration was similar between men and women(P=0.344>0.05). There was no statistical difference between the pseudophakic eyes and phakic eyes(P=0.138>0.05). All of the RB and/or lattice degeneration were located near or anterior to the equator. The inferior quadrants and the vertical meridian were af ected more often than the superior quadrants and the horizontal meridian.Conclusions: We identified a high incidence of RB/lattice degeneration in cases of full-thickness MH. Carefully examination of the peripheral retina and prophylactic treatment of RB and/or lattice degeneration are critical.
