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Xi S, Jing L, Lili W, Tingting L, Jun L, Ming W, Zhiqiang W, Peng J. Magnetic controlled capsule endoscope (MCCE)'s diagnostic performance for H. pylori infection status based on the Kyoto classification of gastritis. BMC Gastroenterol 2022; 22:502. [PMID: 36474169 PMCID: PMC9724339 DOI: 10.1186/s12876-022-02589-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 11/18/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Previous studies have shown that the Kyoto classification of gastritis can accurately predict H. pylori infection status on conventional gastroscopy. The aim of this study was to test whether the Kyoto classification of gastritis applies well to magnetic controlled capsule endoscopy (MCCE). METHODS We consecutively recruited 227 participants who underwent both MCCE and urea breath tests (UBTs). Two physicians who were blinded to the UBT results independently made the diagnosis of H. pylori infection status according to 10 findings listed in the Kyoto classification of gastritis after reviewing MCCE images. We also developed 2 predictive models to assess H. pylori infection status by combining these 10 findings. RESULTS The MCCE's overall diagnostic accuracy for H. pylori infection status was 80.2%. The sensitivity, specificity and diagnostic odds ratio (DOR) for current infection were 89.4%, 90.1% and 77.1, respectively. Major specific findings were mucosal swelling and spotty redness for current infection, regular arrangement of collecting venules (RAC), streak redness, fundic gland polyp (FGP) for noninfection, and map-like redness for past-infection. In the two prediction models, the area under the curve (AUC) values for predicting noninfection and current infection were 84.7 and 84.9, respectively. CONCLUSIONS The Kyoto classification of gastritis applied well to MCCE. H. pylori infection status could be accurately assessed on MCCE according to the Kyoto classification of gastritis.
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Affiliation(s)
- Sun Xi
- grid.414252.40000 0004 1761 8894Chinese PLA General Hospital, Department of Gastroenterology and Hepatology, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Liu Jing
- grid.414252.40000 0004 1761 8894Chinese PLA General Hospital, Department of Gastroenterology and Hepatology, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Wu Lili
- grid.414252.40000 0004 1761 8894Chinese PLA General Hospital, Department of Gastroenterology and Hepatology, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Li Tingting
- grid.414252.40000 0004 1761 8894Chinese PLA General Hospital, Department of Gastroenterology and Hepatology, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Li Jun
- grid.414252.40000 0004 1761 8894Chinese PLA General Hospital, Department of Gastroenterology and Hepatology, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Wang Ming
- grid.414252.40000 0004 1761 8894Chinese PLA General Hospital, Department of Gastroenterology and Hepatology, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Wang Zhiqiang
- grid.414252.40000 0004 1761 8894Chinese PLA General Hospital, Department of Gastroenterology and Hepatology, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Jin Peng
- grid.414252.40000 0004 1761 8894Department of Gastroenterology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
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Qian X, Jingying H, Xian S, Yuqing Z, Lili W, Baorui C, Wei G, Yefeng Z, Qiang Z, Chunyan C, Cheng B, Kai M, Yi Q. The effectiveness of artificial intelligence-based automated grading and training system in education of manual detection of diabetic retinopathy. Front Public Health 2022; 10:1025271. [PMID: 36419999 PMCID: PMC9678340 DOI: 10.3389/fpubh.2022.1025271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 10/18/2022] [Indexed: 11/09/2022] Open
Abstract
Background The purpose of this study is to develop an artificial intelligence (AI)-based automated diabetic retinopathy (DR) grading and training system from a real-world diabetic dataset of China, and in particular, to investigate its effectiveness as a learning tool of DR manual grading for medical students. Methods We developed an automated DR grading and training system equipped with an AI-driven diagnosis algorithm to highlight highly prognostic related regions in the input image. Less experienced prospective physicians received pre- and post-training tests by the AI diagnosis platform. Then, changes in the diagnostic accuracy of the participants were evaluated. Results We randomly selected 8,063 cases diagnosed with DR and 7,925 with non-DR fundus images from type 2 diabetes patients. The automated DR grading system we developed achieved accuracy, sensitivity/specificity, and AUC values of 0.965, 0.965/0.966, and 0.980 for moderate or worse DR (95 percent CI: 0.976-0.984). When the graders received assistance from the output of the AI system, the metrics were enhanced in varying degrees. The automated DR grading system helped to improve the accuracy of human graders, i.e., junior residents and medical students, from 0.947 and 0.915 to 0.978 and 0.954, respectively. Conclusion The AI-based systemdemonstrated high diagnostic accuracy for the detection of DR on fundus images from real-world diabetics, and could be utilized as a training aid system for trainees lacking formal instruction on DR management.
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Affiliation(s)
- Xu Qian
- Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China,Key Laboratory of Cardiovascular Proteomics of Shandong Province, Jinan, China,Jinan Clinical Research Center for Geriatric Medicine (202132001), Jinan, China
| | - Han Jingying
- School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Song Xian
- Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Zhao Yuqing
- Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Wu Lili
- Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Chu Baorui
- Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Guo Wei
- Lunan Eye Hospital, Linyi, China
| | | | | | | | | | - Ma Kai
- Tencent Healthcare, Shenzhen, China
| | - Qu Yi
- Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China,Key Laboratory of Cardiovascular Proteomics of Shandong Province, Jinan, China,Jinan Clinical Research Center for Geriatric Medicine (202132001), Jinan, China,*Correspondence: Qu Yi
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Shuxiang M, Zhen H, Lili W, Yufeng W, Sen Y, Haiyang C, Yingxi W, Wang Q. 69P Combining sintilimab with anlotinib as second-line or later therapy in patients with extensive-disease small cell lung cancer: A prospective, single-arm, phase II trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Sisi Q, Jinfeng Z, Lili W, Jianxin Z. Attachment Styles, Self-Esteem, Flexible Goal Adjustment, and Intimate Relationship Satisfaction in Women: A Moderated Mediation Model. J Psychol 2021; 155:426-440. [PMID: 33830877 DOI: 10.1080/00223980.2021.1896463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
The present study aimed to examine the psychological mechanism underlying the relationship between attachment style and intimate relationship satisfaction in women. For this purpose, a cross-sectional research design was employed in which 233 women (Mage = 28.16 years) who were currently in a romantic relationship completed a questionnaire that assessed attachment style, relationship satisfaction, self-esteem, and flexible goal adjustment (FGA). The results showed that both high attachment anxiety and high attachment avoidance were associated with low relationship satisfaction. Self-esteem mediated the relationship between attachment insecurity and relationship satisfaction. Moreover, the mediation effect of self-esteem was moderated by FGA, such that only in women with high FGA was self-esteem a significant mediator in the relationship between an insecure attachment style and relationship satisfaction. The results have implications for enhancing women's relationship satisfaction.
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Affiliation(s)
- Qin Sisi
- Chinese Academy of Sciences.,Chongqing University
| | | | - Wu Lili
- Chinese Academy of Sciences.,Chongqing University
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Hailing Y, Xiufang L, Lili W, Baoqiang L, Kaichen H, Yongquan H, Qianqian Z, Chaoming M, Xiaoshuai R, Rui Z, Hui L, Pengfei P, Hong S. Doxorubicin-loaded fluorescent carbon dots with PEI passivation as a drug delivery system for cancer therapy. Nanoscale 2020; 12:17222-17237. [PMID: 32671377 DOI: 10.1039/d0nr01236j] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we reported a novel and effective cancer treatment strategy by fabricating carbon dot (CD)-polyethylenimine (PEI)-doxorubicin (DOX) antitumor drug complexes from a combination of PEI-passivated CDs (CD-PEI) and DOX. CD-PEI was synthesized by the one-step microwave hydrothermal carbonization of a mixture of glycerol and PEI-25k, enabling simultaneous synthesis and surface passivation of CDs. DOX was loaded onto CD-PEI by electrostatic interactions. The results show that this system not only improves selective drug release but also prolongs the drug release time and improves the killing effect on tumors. Compared with free DOX, the CD-PEI-DOX complex has a stronger killing effect on liver cancer cells (MHCC-97L and Hep3B cells) but a very low killing effect on normal liver cells (L02). Studies have also confirmed that compared with DOX alone, CD-PEI-DOX nanoparticles can effectively inhibit tumors because of the larger amount of drugs localized in tumor cells and the higher apoptosis rate of MHCC-97L cells. In vivo experiments confirmed that CD-PEI-DOX has a stronger inhibitory effect on tumor growth, indicating that CD-PEI-DOX nanomedicine has inhibitory effects on tumors.
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Affiliation(s)
- Yu Hailing
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province 519000, P. R. China.
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Liang M, Jingwen E, Lili W, Shiming S. miRNA-132 Play an Important Role in Diabetic Nephropathy (DN). J BIOMATER TISS ENG 2019. [DOI: 10.1166/jbt.2019.2015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gaoli X, Yi L, Lili W, Qiutao S, Guang H, Zhiyuan G. [Effect of naringin combined with bone morphogenetic protein-2 on the proliferation and differentiation of MC3T3-E1 cells]. Hua Xi Kou Qiang Yi Xue Za Zhi 2017; 35:275-280. [PMID: 28675012 DOI: 10.7518/hxkq.2017.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE This study evaluates the biological effects of naringin (NAR) joint bone morphogenetic protein (BMP)-2 on the proliferation, alkaline phosphatase (ALP) activity, and expression of osteoblastogenic genes, such as Runt-related transcription factor 2 (Runx2), collagen Ⅰ (ColⅠ), ALP, and osteocalcin (OCN) of pre-osteoblasts. METHODS Three different NAR concentrations (10, 100, and 1 000 μmol·L⁻¹) were applied, alone or combined with BMP-2(50 ng·mL⁻¹), to restore the osteoblastogenesis of pre-osteoblasts (MC3T3-E1 cell line). Cell numbers (proliferation) were evaluated at first, fourth, and seventh days by Alamar blue assay. ALP activity and the expression of osteoblastogenic genes, such as Runx2, ColⅠ, ALP, and OCN were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) at fourth and seventh day. RESULTS Stimulation by NAR alone and in combination with BMP-2 for 1 day and 4 days could promote cell proliferation, which peaked at a concentration of 100 μmol·L⁻¹ NAR combined with BMP-2 could promote cell proliferation significantly (P<0.05). Stimulation by NAR alone and in combination with BMP-2 for 4 and 7 days could promote ALP activity and bone-related gene(ALP, OCN, Runx2, ColⅠ) expression. ALP expression was significantly promoted after stimulation of 100 μmol·L⁻¹ NAR and BMP-2 (P<0.05). CONCLUSIONS NAR exhibits promising potential for improving MC3T3-E1 proliferation and differentiation, and appropriate concentrations of NAR and BMP-2 show synergistic effect.
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Affiliation(s)
- Xu Gaoli
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China;Dept. of Stomatology, Zhejiang Hospital, Hangzhou 310053, China
| | - Liu Yi
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China;Dept. of Dental Implant and Prosthetics, University of Amsterdam, Amsterdam 1011-1109, Holland
| | - Wu Lili
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Shi Qiutao
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Huo Guang
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Gu Zhiyuan
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
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Fengtong J, Jiangtao F, Yating W, Lili W, Jianbo C, Xiaofei W. Effects of S-1 Combined with Radiotherapy in the Treatment of Nasopharyngeal Cancer: A Meta-analysis Based on Randomized Controlled Trials. Open Med (Wars) 2017; 12:107-114. [PMID: 28730169 PMCID: PMC5444406 DOI: 10.1515/med-2017-0017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/17/2017] [Indexed: 12/19/2022] Open
Abstract
The aim of this meta-analysis was to evaluate the effects and toxicity of S-1 combined with radiotherapy in the treatment of nasopharyngeal cancer (NPC). Through a search of the databases of PubMed, Embase, the Chinese Biomedicine Database (CBM), China National Knowledge Infrastructure (CNKI), Wanfang system and Chongqing VIP Information (CQVIP), the efficacy and side effects data of S-1 combined with radiotherapy in the treatment of NPC patients from open published randomized controlled trials (RCTs) were collected. The pooled complete response (CR), partial response (PR), objective response rate (ORR), 2-year survival rate and treatment related toxicity were analyzed by Stata12.0 software. Eight RCTs with 599 cases were included and analyzed in this meta-analysis. The general quality of the 8 studies were deemed as having moderate risk of bias. Adequate sequence generation was reported in 4 studies. Incomplete outcome data address was reported in 7 publications. Five studies indicated to be free of selective reporting. Seven studies reported the treatment complete response (CR) between S-1 combined with radiotherapy and radiotherapy alone. With significant heterogeneity, the data was pooled by random effect model. The pooled results indicated that S-1 combined with radiotherapy can significant increase the CR rate compared to radiotherapy alone (RR=1.52, 95%CI:1.33-1.74, P<0.05). Eight studies reported the partial response (PR) rate between the combined treatment and radiotherapy alone. The pooled results showed that there was no statistical difference for PR between combined treatment and radiotherapy alone (RR=0.85, 95%CI:0.62-1.16, P>0.05). For the effect size of objective response rate (ORR), pooled results indicated that S-1 combined with radiotherapy can significantly increased the ORR by random effect model (RR=1.39, 95%CI:1.23-1.57, P<0.05). The pooled results showed that S-1 combined with radiotherapy significant increase the risk of developing bone marrow suppression (RR=1.94, 95%CI:1.40-2.69, P<0.05) and gastrointestinal reaction (RR=1.81, 95%CI:1.38-2.38, P<0.05) with fixed effect model. However, the pooled oral mucositis (RR=1.22, 95%CI:0.99-1.50, P>0.05) and radiodermatitis (RR=0.93, 95%CI:0.77-1.12, P<0.05) were not statistically different. Two studies reported the 2-year survival rate between the two groups. The pooled results showed the combined treatment significantly increased the 2-year survival rate for patients with nasopharyngeal carcinoma (RR=1.14, 95%CI:1.01-1.28, P<0.05). The funnel plot demonstrated significant publication bias for complete response, partial response, objective response rate and oral mucositis. The egger’s line regression test indicated significant publication bias for complete response (t=5.98, P=0.002) and objective response rate(t=6.23, P=0.003). Conclusion S-1 combined with radiotherapy can significant improve the clinical efficacy with more treatment related toxicity compared to radiotherapy alone in the treatment of nasopharyngeal carcinoma.
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Affiliation(s)
- Jin Fengtong
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang province 323000PR China
| | - Fu Jiangtao
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang province 323000PR China
| | - Wang Yating
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang province 323000PR China
| | - Wu Lili
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang province 323000PR China
| | - Chen Jianbo
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang province 323000PR China
| | - Wang Xiaofei
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang province 323000PR China
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Gaoli X, Lili W, Zhiwu W, Zhiyuan G. [Research progress of mechanism of hypoxia-inducible factor-1α signaling pathway in condylar cartilage growth and remodeling]. Hua Xi Kou Qiang Yi Xue Za Zhi 2016; 34:639-642. [PMID: 28318168 DOI: 10.7518/hxkq.2016.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The condylar cartilage was adapted to hypoxic conditions in vivo. However, condylar cartilage cells exposed in normoxia in vitro affect the chondrocyte phenotype and cartilage matrix formation. This condition also resulted in great difficulty in chondrocyte research. Culturing chondrocyte should be simulated in in vivo hypoxia environment as much as possible. The hypoxia-inducible factor-1α (HIF-1α) demonstrates an important transcription factor of adaptive response to hypoxic conditions. HIF-1α also plays an active role in maintaining homeostasis and function of chondrocytes. This review summarized current knowledge of the HIF-1α structure, signaling pathway, and mechanism of HIF-1α in the condylar cartilage repair.
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Affiliation(s)
- Xu Gaoli
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Wu Lili
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Wu Zhiwu
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Gu Zhiyuan
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
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Zhenxian Z, Zhixing C, Yonghui Y, Lili W, Ye Z. Effect of Lixujieyu recipe in combination with Five Elements music therapy on chronic fatigue syndrome. J TRADIT CHIN MED 2015; 35:637-41. [DOI: 10.1016/s0254-6272(15)30152-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jie M, Lili W, Zhifang S, Hongbin W, Na D, Long H, Lufen Z, Tonghua L, Xiaohong L. Effect of lit-moxa stimulation of Guanyuan (CV 4) acupoint on levels of lactic acid and superoxide dismutase in skeletal muscle of rats. J TRADIT CHIN MED 2015; 35:234-7. [PMID: 25975059 DOI: 10.1016/s0254-6272(15)30034-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To observe the effect of lit-moxa stimu- lating acupoint Guanyuan (CV 4) on lactic acid and super-oxide dismutase (SOD) in skeletal muscle after exercise exhaustion. METHODS Twenty-eight adult male Sprague-Dawley rats were randomly divided into normal control group, exhausted control group, exercise group and moxibustion group using exercise training and mild heating with lit-moxa stick as treatment methods. The exhausted control group, moxibustion group and exercise group received an exhaustive swimming after 20 days of intervention. Swimming exhausted times were recorded. Lactic acid and SOD concentration in soleus muscle were detected and compared between every two groups. RESULTS The swimming exhausted times of the moxibustion group and the exercise group were significantly increased compare to the exhausted control group (P < 0.05). The lactic acid of the exhausted control group was significantly increased comparing with the normal control group (P < 0.05), and the lactic acid of the moxibustion group and the exercise group were significantly lower than that of the exhausted control group (P < 0.05). The SOD level of the exhausted control group was significantly decreased comparing with the normal control group (P < 0.05), and the SOD level of the moxibustion group and the exercise group were significantly higher than that of the exhausted control group (both, P < 0.05). There was no statistical difference between the moxibustion group and the exercise group. CONCLUSION With lit moxa stick, heat stimulating acupoint of Guanyuan (CV 4) decreased the levels of lactic acid and SOD in rat's skeletal muscle.
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Jinhua H, Zhao M, Wei S, Haitao Y, Yuwen W, Lili W, Wei L, Jian Y. Down regulation of differentiated embryo-chondrocyte expressed gene 1 is related to the decrease of osteogenic capacity. Curr Drug Targets 2014; 15:432-41. [PMID: 24397494 DOI: 10.2174/1389450114666140102133719] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 12/23/2013] [Accepted: 12/31/2013] [Indexed: 11/22/2022]
Abstract
Differentiated embryo-chondrocyte expressed gene 1 (DEC1) is associated with chondrogenesis, neurogenesis, immune response, biological rhythm, lipogenesis, cell differentiation and carcinogenesis. However, there is little information about its contribution to osteoblast osteogenesis. In the present study, we report that DEC1 expression increases along with the degree of mineralization, which parallells with the increase of osteogenesis induction time in SaoS-2 cells. Dexamethasone (DEX) decreases the osteogenesis capacity such as alkaline phosphatase (ALP) activity and mineralization along with decreasing the DEC1 expression. On the contrary, 17β-estradiol (E2) increases the osteogenesis along with increasing the DEC1 expression. Moreover, the overexpression of DEC1 alone increases the ALP activity and mineralization synchronously, and it not only partially reverses the decrease of ALP activity induced by DEX, but almost abolishes the decrease of mineralized nodules induced by DEX. On the other hand, the DEC1 expression decreases in tibia bone marrow side of ovariectomy mice compared with that in sham-operated mice, and E2 treatment ameliorates the decrease of DEC1 expression induced by bilateral ovariectomy and prevents osteoporosis in ovariectomized mice . Taken together, downregulation of DEC1 expression is related to the decrease of osteogenic capacity. The findings provide a novel target for the therapy of osteoporosis.
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Affiliation(s)
| | | | | | | | | | | | | | - Yang Jian
- Department of pharmacology, Nanjing medicine University, Nanjing, 210029, China.
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Sanada M, Uike N, Ohyashiki K, Ozawa K, Lili W, Hangaishi A, Kanda Y, Chiba S, Kurokawa M, Omine M, Mitani K, Ogawa S. Unbalanced translocation der(1;7)(q10;p10) defines a unique clinicopathological subgroup of myeloid neoplasms. Leukemia 2007; 21:992-7. [PMID: 17315020 DOI: 10.1038/sj.leu.2404619] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The unbalanced translocation, der(1;7)(q10;p10), is one of the characteristic cytogenetic abnormalities found in myelodysplastic syndromes (MDS) and other myeloid neoplasms. Although described frequently with very poor clinical outcome and possible relationship with monosomy 7 or 7q- (-7/7q-), this recurrent cytogenetic abnormality has not been explored fully. Here we analyzed retrospectively 77 cases with der(1;7)(q10;p10) in terms of their clinical and cytogenetic features, comparing with other 46 adult -7/7q- cases without der(1;7)(q10;p10). In contrast with other -7/7q- cases, where the abnormality tends to be found in one or more partial karyotypes, der(1;7)(q10;p10) represents the abnormality common to all the abnormal clones and usually appears as a sole chromosomal abnormality during the entire clinical courses, or if not, is accompanied only by a limited number and variety of additional abnormalities, mostly trisomy 8 and/or loss of 20q. der(1;7)(q10;p10)-positive MDS cases showed lower blast counts (P<0.0001) and higher hemoglobin concentrations (P<0.0075) at diagnosis and slower progression to acute myeloid leukemia (P=0.0043) than other -7/7q- cases. der(1;7)(q10;p10) cases showed significantly better clinical outcome than other -7/7q cases (P<0.0001). In conclusion, der(1;7)(q10;p10) defines a discrete entity among myeloid neoplasms, showing unique clinical and cytogenetic characteristics.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Chromosome Aberrations
- Chromosomes, Human, Pair 1
- Chromosomes, Human, Pair 7
- Female
- Hematopoietic Stem Cell Transplantation
- Humans
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/pathology
- Male
- Middle Aged
- Myelodysplastic Syndromes/genetics
- Myelodysplastic Syndromes/pathology
- Myeloproliferative Disorders/genetics
- Myeloproliferative Disorders/pathology
- Retrospective Studies
- Translocation, Genetic
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Affiliation(s)
- M Sanada
- Department of Regeneration Medicine for Hematopoiesis, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
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