151
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Wang L, Liu L, Shi S, Gao J, Liu Y, Li Y, Zhang Z, Wang G, Zhang K, Tao M, Gao C, Li K, Wang X, Lv L, Jiang G, Wang X, Jia H, Zhang J, Lu C, Li Y, Li K, Hu C, Ning Y, Li Y, Sun J, Liu T, Zhang Y, Ha B, Tian H, Meng H, Hu J, Chen Y, Deng H, Huang G, Wu W, Li G, Fang X, Pan J, Hong X, Gao S, Li X, Yang D, Chen G, Liu T, Cai M, Dong J, Mei Q, Shen Z, Pan R, Liu Z, Wang X, Tan Y, Flint J, Kendler KS. Cognitive trio: relationship with major depression and clinical predictors in Han Chinese women. Psychol Med 2013; 43:2265-2275. [PMID: 23425530 PMCID: PMC3807662 DOI: 10.1017/s0033291713000160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 01/06/2013] [Accepted: 01/10/2013] [Indexed: 11/07/2022]
Abstract
BACKGROUND Previous studies support Beck's cognitive model of vulnerability to depression. However, the relationship between his cognitive triad and other clinical features and risk factors among those with major depression (MD) has rarely been systematically studied. METHOD The three key cognitive symptoms of worthlessness, hopelessness and helplessness were assessed during their lifetime worst episode in 1970 Han Chinese women with recurrent MD. Diagnostic and other risk factor information was assessed at personal interview. Odds ratios (ORs) were calculated by logistic regression. RESULTS Compared to patients who did not endorse the cognitive trio, those who did had a greater number of DSM-IV A criteria, more individual depressive symptoms, an earlier age at onset, a greater number of episodes, and were more likely to meet diagnostic criteria for melancholia, postnatal depression, dysthymia and anxiety disorders. Hopelessness was highly related to all the suicidal symptomatology, with ORs ranging from 5.92 to 6.51. Neuroticism, stressful life events (SLEs) and a protective parental rearing style were associated with these cognitive symptoms. CONCLUSIONS During the worst episode of MD in Han Chinese women, the endorsement of the cognitive trio was associated with a worse course of depression and an increased risk of suicide. Individuals with high levels of neuroticism, many SLEs and high parental protectiveness were at increased risk for these cognitive depressive symptoms. As in Western populations, symptoms of the cognitive trio appear to play a central role in the psychopathology of MD in Chinese women.
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Affiliation(s)
- L. Wang
- Shandong Mental Health Center, Jinan, Shandong, P.R. China (P.R.C.)
| | - L. Liu
- Shandong Mental Health Center, Jinan, Shandong, P.R. China (P.R.C.)
| | - S. Shi
- Fudan University Affiliated Huashan Hospital, Shanghai, P.R.C.
| | - J. Gao
- ZheJiang Traditional Chinese Medical Hospital, Hangzhou Zhe Jiang, P.R.C.
| | - Y. Liu
- The First Hospital of China Medical University, He Ping District, Shenyang, Liaoning, P.R.C.
| | - Y. Li
- No. 1 Hospital of Zhengzhou University, Zhengzhou, Henan, P.R.C.
| | - Z. Zhang
- No. 4 Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R.C.
| | - G. Wang
- Beijing Anding Hospital, Capital Medical University, Xicheng District, Beijing, P.R.C.
| | - K. Zhang
- No. 1 Hospital of Shanxi Medical University, Taiyuan, Shanxi, P.R.C.
| | - M. Tao
- Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhe Jiang, P.R.C.
| | - C. Gao
- No. 1 Hospital of Medical College of Xian Jiaotong University, Xi'an, Shaanxi, P.R.C.
| | - K. Li
- Mental Hospital of Jiangxi Province, Jiangxi, P.R.C.
| | - X. Wang
- Shengjing Hospital of China Medical University, Heping District Shenyang, Liaoning, P.R.C.
| | - L. Lv
- Psychiatric Hospital of Henan Province, Xinxiang, Henan, P.R.C.
| | - G. Jiang
- Chongqing Mental Health Center, Chongqing, P.R.C.
| | - X. Wang
- The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R.C.
| | - H. Jia
- Jilin Brain Hospital, Siping, Jilin, P.R.C.
| | - J. Zhang
- No. 3 Affiliated Hospital of Sun Yat-sen University, Tian He District, Guangzhou, Guangdong, P.R.C.
| | - C. Lu
- Shandong Mental Health Center, Jinan, Shandong, P.R. China (P.R.C.)
| | - Y. Li
- Dalian No. 7 People's Hospital & Dalian Mental Health Center, Gan Jing Zi District, Dalian, Liaoning, P.R.C.
| | - K. Li
- Hebei Mental Health Center, Baoding, Hebei, P.R.C.
| | - C. Hu
- No. 3 Hospital of Heilongjiang Province, Beian, Heilongjiang, P.R.C.
| | - Y. Ning
- Guangzhou Brain Hospital/Guangzhou Psychiatric Hospital, Fang Cun Da Dao, Li Wan District, Guangzhou, Guangdong, P.R.C.
| | - Y. Li
- Wuhan Mental Health Center, Wuhan, P.R.C.
| | - J. Sun
- Nanjing Brain Hospital, Nanjing, Jiangsu, P.R.C.
| | - T. Liu
- Shenzhen Kangning Hospital, Luo Hu, Shenzhen, Guangdong, P.R.C.
| | - Y. Zhang
- Lanzhou University Second Hospital, Second Clinical Medical College of Lanzhou University, Lanzhou, Gansu Province, P.R.C.
| | - B. Ha
- No. 4 People's Hospital of Liaocheng, Liaocheng, Shandong, P.R.C.
| | - H. Tian
- Tianjin Anding Hospital, Hexi District, Tianjin, P.R.C.
| | - H. Meng
- No. 1 Hospital of Chongqing Medical University, Yu Zhong District, Chongqing, P.R.C.
| | - J. Hu
- No. 1 Mental Health Center Affiliated Harbin Medical University, Nangang District, Harbin, Heilongjiang, P.R.C.
| | - Y. Chen
- The Fourth Military Medical University Affiliated Xijing Hospital, Xi'an, Shaanxi, P.R.C.
| | - H. Deng
- Mental Health Center of West China Hospital of Sichuan University, Wu Hou District, Chengdu, Sichuan, P.R.C.
| | - G. Huang
- Sichuan Mental Health Center, Mian Yang, Sichuan, P.R.C.
| | - W. Wu
- Shanghai Tongji University Affiliated Tongji Hospital, Shanghai, P.R.C.
| | - G. Li
- Mental Health Institute of Jining Medical College, Dai Zhuang, Bei Jiao, Jining, Shandong, P.R.C.
| | - X. Fang
- Fuzhou Psychiatric Hospital, Cang Shan District, Fuzhou, Fujian, P.R.C.
| | - J. Pan
- The First Affiliated Hospital of Jinan University, Tian He District, Guangzhou, Guangdong, P.R.C.
| | - X. Hong
- Mental Health Center of Shantou University, Wan Ji Industrial Zone, Tai Shan Bei Lu, Shantou, Guangdong, P.R.C.
| | - S. Gao
- Ningbo Kang Ning Hospital, Zhen Hai District, Ningbo, P.R.C.
| | - X. Li
- Anhui Mental Health Center, Hefei, Anhui, P.R.C.
| | - D. Yang
- Jining Psychiatric Hospital, Bei Dai Zhuang, Ren Cheng District, Jining, Shandong, P.R.C.
| | - G. Chen
- Huaian No. 3 Hospital, Huaian, Jiangsu, P.R.C.
| | - T. Liu
- No. 2 Xiangya Hospital of Zhongnan University, Changsha, Hunan, P.R.C.
| | - M. Cai
- Huzhou No. 3 Hospital, Huzhou, Zhejiang, P.R.C.
| | - J. Dong
- Qingdao Mental Health Center, Shibei District, Qingdao, Shandong, P.R.C.
| | - Q. Mei
- Suzhou Guangji Hospital, Suzhou, Jiangsu, P.R.C.
| | - Z. Shen
- Tangshan No. 5 Hospital, Lu Nan District, Tangshan, Hebei, P.R.C.
| | - R. Pan
- Guangxi Longquanshan Hospital, Yu Feng District, Liuzhou, P.R.C.
| | - Z. Liu
- Anshan Psychiatric Rehabilitation Hospital, Li Shan District, Anshan, Liaoning, P.R.C.
| | - X. Wang
- Renmin Hospital of Wuhan University, Wu Chang District, Wuhan, Hubei, P.R.C.
| | - Y. Tan
- Beijing Huilongguan Hospital, Changping District, Beijing, P.R.C.
| | - J. Flint
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - K. S. Kendler
- Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA
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152
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Abstract
Gingivae represent a unique soft tissue that serves as a biological barrier to cover the oral cavity side of the maxilla and mandible. Recently, the gingivae were identified as containing mesenchymal stem cells (GMSCs). However, it is unknown whether the GMSCs are derived from cranial neural crest cells (CNCC) or the mesoderm. In this study, we show that around 90% of GMSCs are derived from CNCC and 10% from the mesoderm. In comparison with mesoderm MSCs (M-GMSCs), CNCC-derived GMSCs (N-GMSCs) show an elevated capacity to differentiate into neural cells and chondrocytes and induce activated T-cell apoptosis in vitro. When transplanted into mice with dextran sulfate sodium (DSS)-induced colitis, N-GMSCs showed superior effects in ameliorating inflammatory-related disease phenotype in comparison with the M-GMSC treatment group. Mechanistically, the increased immunomodulatory effect of N-GMSCs is associated with up-regulated expression of FAS ligand (FASL), a transmembrane protein that plays an important role in MSC-based immunomodulation. In summary, our study indicates that the gingivae contain both neural-crest- and mesoderm-derived MSCs with distinctive stem cell properties.
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Affiliation(s)
- X Xu
- Laboratory of Oral Biomedical Science and Translational Medicine, Tongji University School of Stomatology, Shanghai 200072, China
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153
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Dong LY, Zheng JH, Qiu XX, Yu M, Ye YZ, Shi S, Yang DC, Xie YW. Ischemic preconditioning reduces deep hypothermic circulatory arrest cardiopulmonary bypass induced lung injury. Eur Rev Med Pharmacol Sci 2013; 17:1789-1799. [PMID: 23852906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
PURPOSE Ischemic preconditioning (IP) has been used to reduce ischemia-reperfusion injury in several models. It remains unknown whether IP is sufficient to prevent deep hypothermic circulatory arrest (DHCA) cardiopulmonary bypass (CPB) induced lung injury. MATERIALS AND METHODS Twenty-four piglets were randomly divided into four groups: routine CPB (CPB), CPB + DHCA (DHCA), CPB + IP + DHCA (IP-1) and CPB + hypoxia-ischemia preconditioning + DHCA (IP-2). Lung static compliance (Cstat) and pulmonary vascular resistance (PVR) were measured as indicators of lung function at three points during CPB. TNF-α, IL-8 and IL-10 expressions were detected by radioimmunoassay. CD18 expression was determined by flow cytometer. Some lung tissues were excised to measure the wet/dry weight ratio (W/D) and some were fixed to observe pathological changes. RESULTS Cstat significantly decreased whereas PVR increased in DHCA group. IP prevented DHCA-induced lung functional impairment, especially IP-2 treatment. More cytokines were produced after CPB in all groups, but with varying level. Left atrium/pulmonary artery ratio of CD18 expression on monocytes decreased only in DHCA group, whereas which on polymorphonuclear neutrophils decreased in DHCA group, IP-1 group at 1h post-CPB and IP-2 group. Although lung W/D was increased in IP-2 group compared with pre-CPB, but significantly lower than that in DHCA group. Histological findings showed less lung injuries in IP groups than DHCA group. CONCLUSIONS DHCA aggravates lung inflammatory injury and IP may reverse this injury. Maintaining ventilation with pulmonary artery perfusion in the lung IP process during CPB seems to be more superior to single pulmonary artery perfusion.
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Affiliation(s)
- L-Y Dong
- Department of Cardiovascular Surgery, Shanghai Jiaotong University, Shanghai, China
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154
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Sun L, Wang D, Akiyama K, Chen C, Shi S. SAT0033 Allogenic mesenchymal stem cells-mediated immunoregulation involves FAS/FASL-induced T cell apoptosis in systemic sclerosis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2981] [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: 11/04/2022]
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155
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Berthelot-ricou A, Perrin J, Roustan A, Di Giorgio C, De Meo M, Botta A, Orsiere T, Courbiere B, Martinez JG, Botella IM, Casas IP, Novella-Maestre E, Colom PJF, Rubio J, Martinez AP, Rodriguez-Wallberg KA, de Mena SA, Malm E, Larsson A, Kuiper R, Hassan M, Herraiz S, Novella-Maestre E, Rodriguez-Iglesias B, Diaz-Garcia C, Mirabet V, Pellicer A, Aljaser FS, Medrano JH, Rhodes S, Tomlinson MJ, Campbell BK, Dong F, Shi S, Dai S, Liu X, Su Y, Guo Y, Wang F, Xin Z, Song W, Jin H, Jin H, Sun Y, Ortega-Hrepich C, Stoop D, Guzman L, Van Landuyt L, Tournaye H, Smitz J, De Vos M, Rodriguez-Iglesias B, Herraiz S, Novella-Maestre E, Diaz C, Vera F, Pellicer A, Novella-Maestre E, Herraiz S, Rodriguez-Iglesias B, Diaz-Garcia C, Pellicer A, Youm H, Lee J, Lee JR, Lee JY, Jee BC, Suh CS, Kim SH, Lotz L, Hoffmann I, Muller A, Hackl J, Schulz C, Reissmann C, Cupisti S, Oppelt PG, Heusinger K, Hildebrandt T, Beckmann MW, Dittrich R, Klinger F, Rossi V, Lispi M, Longobardi S, De Felici M, Fabbri R, Vicenti R, Martino NA, Parazza I, Macciocca M, Magnani V, Pasquinelli G, Dell'Aquila ME, Venturoli S, Fisch B, Orvieto R, Fisher N, Ben-Haroush A, Stein A, Abir R, Al-Samerria S, McFarlane J, Almahbobi G, Klocke S, Tappehorn C, Griesinger G. Male and female fertility preservation. Hum Reprod 2013. [DOI: 10.1093/humrep/det215] [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: 11/12/2022] Open
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156
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Makino Y, Yamaza H, Akiyama K, Ma L, Hoshino Y, Nonaka K, Terada Y, Kukita T, Shi S, Yamaza T. Immune therapeutic potential of stem cells from human supernumerary teeth. J Dent Res 2013; 92:609-15. [PMID: 23697344 DOI: 10.1177/0022034513490732] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [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: 01/09/2023] Open
Abstract
Discoveries of immunomodulatory functions in mesenchymal stem cells (MSCs) have suggested that they might have therapeutic utility in treating immune diseases. Recently, a novel MSC population was identified from dental pulp of human supernumerary teeth, and its multipotency characterized. Herein, we first examined the in vitro and in vivo immunomodulatory functions of human supernumerary tooth-derived stem cells (SNTSCs). SNTSCs suppressed not only the viability of T-cells, but also the differentiation of interleukin 17 (IL-17)-secreting helper T (Th17)-cells in in vitro co-culture experiments. In addition, systemic SNTSC transplantation ameliorated the shortened lifespan and elevated serum autoantibodies and nephritis-like renal dysfunction in systemic lupus erythematosus (SLE) model MRL/lpr mice. SNTSC transplantation also suppressed in vivo increased levels of peripheral Th17 cells and IL-17, as well as ex vivo differentiation of Th17 cells in MRL/lpr mice. Adoptive transfer experiments demonstrated that SNTSC-transplanted MRL/lpr mouse-derived T-cell-adopted immunocompromised mice showed a longer lifespan in comparison with non-transplanted MRL/lpr mouse-derived T-cell-adopted immunocompromised mice, indicating that SNTSC transplantation suppresses the hyper-immune condition of MRL/lpr mice through suppressing T-cells. Analysis of these data suggests that SNTSCs are a promising MSC source for cell-based therapy for immune diseases such as SLE.
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Affiliation(s)
- Y Makino
- Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, Higashi-ku, Fukuoka, Japan
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157
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Kohlova M, Ribeiro S, do Sameiro-Faria M, Rocha-Pereira P, Fernandes J, Reis F, Miranda V, Quintanilha A, Bronze-da-Rocha E, Belo L, Costa E, Santos-Silva A, Arias-Guillen M, Maduell F, Masso E, Fontsere N, Carrera M, Ojeda R, Vera M, Cases A, Campistol J, Di Benedetto A, Ciotola A, Stuard S, Marcelli D, Canaud B, Kim MJ, Lee SW, Kweon SH, Song JH, Rosales LM, Abbas S, Zhu F, Flores C, Carter M, Apruzzese R, Kotanko P, Levin NW, Mann H, Seyffart G, Ensminger A, Goksel T, Stiller S, Zaluska W, Kotlinska-Hasiec E, Rzecki Z, Rybojad B, Zaluska A, Da'browski W, Ponce P, Chung T, Kreuzberg U, Pedrini L, Francois K, Wissing KM, Jacobs R, Boone D, Jacobs K, Tielemans C, Agar BU, Culleton BF, Fluck R, Leypoldt JK, Lentini P, Zanoli L, Granata A, Contestabile A, Basso A, Berlingo G, Pellanda V, de Cal M, Clementi A, Insalaco M, Dell'Aquila R, Panichi V, Rosati A, Casani A, Conti P, Capitanini A, Migliori M, Scatena A, Giusti R, Malagnino E, Betti G, Bernabini G, Gabbrielli C, Rollo S, Caiani D, Pizzarelli F, Cantaluppi V, Medica D, Quercia AD, Gai M, Leonardi G, Anania P, Guarena C, Giovinazzo G, Ferraresi M, Merlo I, Deambrosis I, Giaretta F, Biancone L, Segoloni GP, Surace A, Pieri M, Rovatti P, Steckiph D, Mambelli E, Mancini E, Santoro A, Devine E, Krieter D, Lemke HD, Frasca GM, Sagripanti S, Boggi R, Del Rosso G, Gattiani A, Mosconi G, Oliva S, Rigotti A, Sopranzi F, Tetta C, Cavallari C, Fonsato V, Maffei S, Collino F, Camussi G, Ksiazek A, Waniewski J, Debowska M, Wojcik-Zaluska A, Zaluska W, Maduell F, Wieneke P, Arias-Guillen M, Fontsere N, Vera M, Ojeda R, Carrera M, Cases A, Campistol J, Bunia J, Ziebig R, Wolf H, Ahrenholz P, Donadio C, Kanaki A, Sami N, Tognotti D, Goubella A, Gankam-Kengne F, Baudoux T, Fagnoul D, Husson C, Ghisdal L, Broeders NE, Nortier JL, von Albertini B, Mathieu C, Cherpillod A, Boesch A, Romo M, Zhou J, Tang L, Kong D, Zhang L, Shi S, Lv Y, Chen X, Sakurai K, Saito T, Ishii D, Fievet P, Delpierre A, Faucher J, Ghazali A, Soltani ON, Lefevre M, Stephan R, Demontis R, Hougardy JM, Husson C, Gastaldello K, Nortier JL, Mishkin GJ, McLean A, Palant C, Fievet P, Faucher J, Delpierre A, Ghazali A, Demontis R, Glorieux G, Hulko M, Speidel R, Brodbeck K, Krause B, Vanholder R, Rovatti P, Grandi E, Stefani D, Ruffo M, Solem K, Olde B, Santoro A, Sterner G, Lee YK, Lee HW, Choi KH, Kim BS, Sakurai K, Saito T, Wakabayasi Y, Djuric P, Bulatovic A, Jankovic A, Tosic J, Popovic J, Djuric Z, Bajcetic S, Dimkovic N, Golubev RV, Soltysiak J, Malke A, Warzywoda A, Blumczynski A, Silska-Dittmar M, Musielak A, Ostalska-Nowicka D, Zachwieja J, Ashcroft R, Williams G, Brown C, Chess J, Mikhail A, Steckiph D, Bertucci A, Petrarulo M, Baldini C, Calabrese G, Gonella M. Extracorporeal dialysis: techniques and adequacy II. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft144] [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: 11/13/2022] Open
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158
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Liu C, Cheng H, Shi S, Cui X, Yang J, Chen L, Cen P, Cai X, Lu Y, Wu C, Yao W, Qin Y, Liu L, Long J, Xu J, Li M, Yu X. MicroRNA-34b inhibits pancreatic cancer metastasis through repressing Smad3. Curr Mol Med 2013; 13:467-78. [PMID: 23305226 DOI: 10.2174/1566524011313040001] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 12/30/2012] [Accepted: 01/05/2013] [Indexed: 11/22/2022]
Abstract
Pancreatic cancer is characterized by extremely poor prognosis because of early recurrence and metastasis, and increasing evidence supports the critical role of microRNA in cancer progression. Here we identified that microRNA-34b functioned as a tumor-suppressing microRNA by targeting oncogenic Smad3 in pancreatic cancer. As a hypovascular tumor with a potential endoplasmic reticulum stress microenvironment, miR-34b was silenced after ER stress inducer thapsigargin (Tg) treatment and negatively regulated by ER stress chaperone glucose regulated protein 78 (GRP78) in pancreatic cancer cells. In human specimens, we found that miR-34b was down-regulated in pancreatic cancer tissues and low level of miR-34b expression was positively correlated with tumor-node-metastasis (TNM) stage, lymph-node metastasis and overall survival. Functional assays showed that over-expression of miR-34b inhibited pancreatic cancer progression in vitro and in vivo. In addition, Smad3 was demonstrated as a direct target of miR-34b and negatively regulated by miR- 34b at mRNA and protein levels. Luciferase assays confirmed that miR-34b could directly bind to the 3'untranslated region of Smad3. An inverse correlation between miR-34b and Smad3 was observed in 64 pancreatic cancer tissues. Our findings indicate that miR-34b acts as a tumor metastasis suppressor through negatively modulating Smad3, which may provide a potential therapeutic strategy for pancreatic cancer.
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Affiliation(s)
- C Liu
- Department of Pancreatic and Hepatobiliary Surgery, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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159
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Liao L, Yang X, Su X, Hu C, Zhu X, Yang N, Chen X, Shi S, Shi S, Jin Y. Redundant miR-3077-5p and miR-705 mediate the shift of mesenchymal stem cell lineage commitment to adipocyte in osteoporosis bone marrow. Cell Death Dis 2013; 4:e600. [PMID: 23598412 PMCID: PMC3641352 DOI: 10.1038/cddis.2013.130] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
During the process of aging, especially for postmenopausal females, the cell lineage commitment of mesenchymal stem cells (MSCs) shift to adipocyte in bone marrow, resulting in osteoporosis. However, the cell-intrinsic mechanism of this cell lineage commitment switch is poorly understood. As the post-transcription regulation by microRNAs (miRNAs) has a critical role in MSCs differentiation and bone homeostasis, we performed comprehensive miRNAs profiling and found miR-705 and miR-3077-5p were significantly enhanced in MSCs from osteoporosis bone marrow. Both miR-705 and miR-3077-5p acted as inhibitors of MSCs osteoblast differentiation and promoters of adipocyte differentiation, by targeting on the 3'untranslated region (3'UTR) of HOXA10 and RUNX2 mRNA separately. Combined inhibition of miR-705 and miR-3077-5p rescued the cell lineage commitment disorder of MSCs through restoring HOXA10 and RUNX2 protein level. Furthermore, we found excessive TNFα and reactive oxygen species caused by estrogen deficiency led to the upregulation of both miRNAs through NF-κB pathway. In conclusion, our findings showed that redundant miR-705 and miR-3077-5p synergistically mediated the shift of MSCs cell lineage commitment to adipocyte in osteoporosis bone marrow, providing new insight into the etiology of osteoporosis at the post-transcriptional level. Moreover, the rescue of MSCs lineage commitment disorder by regulating miRNAs expression suggested a novel potential therapeutic target for osteoporosis as well as stem cell-mediated regenerative medicine.
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Affiliation(s)
- L Liao
- Research and Development Center for Tissue Engineering, Fourth Military Medical University, Xi'an, China
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160
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Liu Y, Li Z, Yang C, Zheng H, Lv Y, Chen H, Zhang Y, Shi S. Tolerability and Pharmacokinetics of Biapenem Following Single and Multiple Intravenous Administrations in Healthy Chinese Subjects: An Open-Label, Randomized, Single-Center Study. Drug Res (Stuttg) 2013; 63:396-403. [PMID: 23585303 DOI: 10.1055/s-0033-1341498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Y. Liu
- Clinical Research Organization for Pharmaceutical Products, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Z. Li
- Clinical Research Organization for Pharmaceutical Products, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - C. Yang
- Clinical Research Organization for Pharmaceutical Products, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - H. Zheng
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Y. Lv
- Clinical Research Organization for Pharmaceutical Products, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - H. Chen
- Clinical Research Organization for Pharmaceutical Products, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Y. Zhang
- Clinical Research Organization for Pharmaceutical Products, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - S. Shi
- Clinical Research Organization for Pharmaceutical Products, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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161
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Liu W, Liu Y, Guo T, Hu C, Luo H, Zhang L, Shi S, Cai T, Ding Y, Jin Y. TCF3, a novel positive regulator of osteogenesis, plays a crucial role in miR-17 modulating the diverse effect of canonical Wnt signaling in different microenvironments. Cell Death Dis 2013; 4:e539. [PMID: 23492770 PMCID: PMC3613843 DOI: 10.1038/cddis.2013.65] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Wnt signaling pathways are a highly conserved pathway, which plays an important role from the embryonic development to bone formation. The effect of Wnt pathway on osteogenesis relies on their cellular environment and the expression of target genes. However, the molecular mechanism of that remains unclear. On the basis of the preliminary results, we observed the contrary effect of canonical Wnt signaling on osteogenic differentiation of periodontal ligament stem cells (PDLSCs) in the different culture environment. Furthermore, we found that the expression level of miR-17 was also varied with the change in the culture environment. Therefore, we hypothesized that miR-17 and canonical Wnt signaling may have potential interactions, particularly the inner regulation relationship in different microenvironments. In this paper, we observed that canonical Wnt signaling promoted osteogenesis of PDLSCs in the fully culture medium, while inhibited it in the osteogenic differentiation medium. Interestingly, alteration in the expression level of endogenous miR-17 could partially reverse the different effect of canonical Wnt signaling. Furthermore, the role of miR-17 was because of its target gene TCF3 (transcription factor 3), a key transcription factor of canonical Wnt pathway. Overexpression of TCF3 attenuated the effect of miR-17 on modulating canonical Wnt signaling. Finally, we elucidated that TCF3 enhanced osteogenesis both in vitro and in vivo. In brief, the different level of miR-17 was the main cause of the different effect of canonical Wnt signaling, and TCF3 was the crucial node of miR-17–canonial Wnt signaling regulation loop. This understanding of microRNAs regulating signaling pathways in different microenvironments may pave the way for fine-tuning the process of osteogenesis in bone-related disorders.
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Affiliation(s)
- W Liu
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
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162
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Abstract
The differentiation and maintenance of Th17 cells require a unique cytokine milieu and activation of lineage-specific transcription factors. This process appears to be antagonized by the transcription factor T-bet, which controls the differentiation of Th1 cells. Considering that T-bet-deficient (T-bet(-/-) ) mice are largely devoid of natural killer (NK) cells due to a defect in the terminal maturation of these cells, and because NK cells can influence the differentiation of T helper cells, we investigated whether the absence of NK cells in T-bet-deficient mice contributes to the augmentation of autoreactive Th17 cell responses. We show that the loss of T-bet renders the transcription factors Rorc and STAT3 highly responsive to activation by stimuli provided by NK cells. Furthermore, reconstitution of T-bet(-/-) mice with wild-type NK cells inhibited the development of autoreactive Th17 cells through NK cell-derived production of IFN-γ. These results identify NK cells as critical regulators in the development of autoreactive Th17 cells and Th17-mediated pathology.
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Affiliation(s)
- W Wu
- Department of Neurology and Tianjin Neurologic Institute, Tianjin Medical University General Hospital, Tianjin, China
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163
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Graham M, Shi S, Ralph D, Park J, McEuen P. Two-pulse space-time photocurrent correlations at graphene p-njunctions reveal hot carrier cooling dynamics near the Fermi level. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134104026] [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: 11/14/2022] Open
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164
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Bi B, Xiao X, Zhang H, Gao J, Tao M, Niu H, Wang Y, Wang Q, Chen C, Sun N, Li K, Fu J, Gan Z, Sang W, Zhang G, Yang L, Tian T, Li Q, Yang Q, Sun L, Li Y, Rong H, Guan C, Zhao X, Ye D, Zhang Y, Ma Z, Li H, He K, Chen J, Cai Y, Zhou C, Luo Y, Wang S, Gao S, Liu J, Guo L, Guan J, Kang Z, Di D, Li Y, Shi S, Li Y, Chen Y, Flint J, Kendler K, Liu Y. A comparison of the clinical characteristics of women with recurrent major depression with and without suicidal symptomatology. Psychol Med 2012; 42:2591-2598. [PMID: 22716960 PMCID: PMC3488812 DOI: 10.1017/s003329171200058x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2011] [Revised: 03/02/2012] [Accepted: 03/06/2012] [Indexed: 11/22/2022]
Abstract
BACKGROUND The relationship between recurrent major depression (MD) in women and suicidality is complex. We investigated the extent to which patients who suffered with various forms of suicidal symptomatology can be distinguished from those subjects without such symptoms. METHOD We examined the clinical features of the worst episode in 1970 Han Chinese women with recurrent DSM-IV MD between the ages of 30 and 60 years from across China. Student's t tests, and logistic and multiple logistic regression models were used to determine the association between suicidality and other clinical features of MD. RESULTS Suicidal symptomatology is significantly associated with a more severe form of MD, as indexed by both the number of episodes and number of MD symptoms. Patients reporting suicidal thoughts, plans or attempts experienced a significantly greater number of stressful life events. The depressive symptom most strongly associated with lifetime suicide attempt was feelings of worthlessness (odds ratio 4.25, 95% confidence interval 2.9-6.3). Excessive guilt, diminished concentration and impaired decision-making were also significantly associated with a suicide attempt. CONCLUSIONS This study contributes to the existing literature on risk factors for suicidal symptomatology in depressed women. Identifying specific depressive symptoms and co-morbid psychiatric disorders may help improve the clinical assessment of suicide risk in depressed patients. These findings could be helpful in identifying those who need more intense treatment strategies in order to prevent suicide.
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Affiliation(s)
- B. Bi
- The First Hospital of China Medical University, Shenyang, People's Republic of China (PRC)
| | - X. Xiao
- The First Hospital of China Medical University, Shenyang, People's Republic of China (PRC)
| | - H. Zhang
- The First Hospital of China Medical University, Shenyang, People's Republic of China (PRC)
| | - J. Gao
- ZheJiang Traditional Chinese Medical Hospital, Hangzhou, PRC
| | - M. Tao
- Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, PRC
| | - H. Niu
- No. 1 Hospital of Zhengzhou University, Zhengzhou, PRC
| | - Y. Wang
- Shandong Mental Health Center, Shan Dong, PRC
| | - Q. Wang
- Beijing Anding Hospital, Capital Medical University, Beijing, PRC
| | - C. Chen
- No. 1 Hospital of Medical College of Xian Jiaotong University, Xian, Shaan Xi, PRC
| | - N. Sun
- No. 1 Hospital of Shanxi Medical University, Shanxi, PRC
| | - K. Li
- Mental Hospital of Jiangxi Province, Jiangxi, PRC
| | - J. Fu
- ShengJing Hospital of China Medical University, Liaoning, PRC
| | - Z. Gan
- No. 3 Affiliated Hospital of Zhongshan University, Guangdong, PRC
| | - W. Sang
- Hebei Mental Health Center, Hebei, PRC
| | - G. Zhang
- No. 4 Affiliated Hospital of Jiangsu University, Jiang Su, PRC
| | - L. Yang
- Jilin Brain Hospital, Jilin, PRC
| | - T. Tian
- Tianjin Anding Hospital, Tianjin, PRC
| | - Q. Li
- No. 1 Mental Health Center Affiliated Harbin Medical University, Heilongjiang, PRC
| | - Q. Yang
- Chongqing Mental Health Center, Chongqing, PRC
| | - L. Sun
- Psychiatric Hospital of Henan Province, Henan, PRC
| | - Ying Li
- Dalian No. 7 People's Hospital and Dalian Mental Health Center, Dalian, PRC
| | - H. Rong
- Shenzhen Kangning Hospital, Shenzhen, PRC
| | - C. Guan
- Nanjing Brain Hospital, Jiang Su, PRC
| | - X. Zhao
- The First Hospital of Hebei Medical University, Shijiazhuang, PRC
| | - D. Ye
- Sichuan Mental Health Center, Sichuan, PRC
| | - Y. Zhang
- Lanzhou University Second Hospital, Second Clinical Medical College of Lanzhou University, Gansu Province, PRC
| | - Z. Ma
- No. 1 Hospital of Chongqing Medical University, Chongqing, PRC
| | - H. Li
- Mental Health Center of West China Hospital of Sichuan University, Si Chuan, PRC
| | - K. He
- Shanghai Tongji University Affiliated Tongji Hospital, Shanghai, PRC
| | - J. Chen
- Shanghai Jiao Tong University School of Medicine Affiliated Shanghai Mental Health Center, Shanghai, PRC
| | - Y. Cai
- Fudan University Affiliated Huashan Hospital, Shanghai, PRC
| | - C. Zhou
- Wuhan Mental Health Center, Hubei, PRC
| | - Y. Luo
- No. 3 Hospital of Heilongjiang Province, Heilongjiang, PRC
| | - S. Wang
- The First Affiliated Hospital of Jinan University, Guangzhou, PRC
| | - S. Gao
- Ningbo Kangning Hospital, Zhejiang, PRC
| | - J. Liu
- Suzhou Guangji Hospital, Jiangsu, PRC
| | - L. Guo
- The Fourth Military Medical University Affiliated Xijing Hospital, Shaanxi, PRC
| | - J. Guan
- Guangzhou Brain Hospital/Guangzhou Psychiatric Hospital, Guangzhou, PRC
| | - Z. Kang
- No. 4 People's Hospital of Liaocheng, Shandong, PRC
| | - D. Di
- Mental Health Institute of Jining Medical College, Shandong, PRC
| | - Yajuan Li
- Xian Mental Health Center, Xian, Shanxi, PRC
| | - S. Shi
- Fudan University Affiliated Huashan Hospital, Shanghai, PRC
| | - Yihan Li
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Y. Chen
- Clinical Trial Service Unit, Richard Doll Building, Oxford, UK
| | - J. Flint
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - K. Kendler
- Virginia Commonwealth University (VCU), Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Richmond, VA, USA
| | - Y. Liu
- The First Hospital of China Medical University, Shenyang, People's Republic of China (PRC)
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165
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Abstract
The discovery that dental pulp stem cells are capable of differentiating into endothelial cells raises the exciting possibility that these cells can be a single source of odontoblasts and vascular networks in dental tissue engineering. The purpose of this study was to begin to define signaling pathways that regulate endothelial differentiation of SHED. Stem cells from exfoliated deciduous teeth (SHED) exposed to endothelial growth medium (EGM-2MV) supplemented with vascular endothelial growth factor (VEGF) differentiated into VEGFR2-positive and CD31-positive endothelial cells in vitro. In vivo, VEGFR1-silenced SHED seeded in tooth slice/ scaffolds and transplanted into immunodeficient mice showed a reduction in human CD31-positive blood vessels as compared with controls (p = 0.02). Exposure of SHED to EGM2-MV supplemented with VEGF induced potent activation of ERK and Akt signaling, while it inhibited phosphorylation of STAT3. Notably, genetic (MEK1 silencing) or chemical (U0126) inhibition of ERK signaling restored constitutive STAT3 phosphorylation and inhibited the differentiation of SHED into endothelial cells. Collectively, analysis of these data unveiled the VEGF/MEK1/ERK signaling pathway as a key regulator of the endothelial differentiation of dental pulp stem cells.
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Affiliation(s)
- L W Bento
- Angiogenesis Research Laboratory, Department of Restorative Sciences, University of Michigan School of Dentistry, Ann Arbor, MI 48109-1078, USA
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166
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Wang L, Zhao Y, Shi S. Interplay between mesenchymal stem cells and lymphocytes: implications for immunotherapy and tissue regeneration. J Dent Res 2012; 91:1003-10. [PMID: 22988011 DOI: 10.1177/0022034512460404] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In addition to their potential for replacing damaged and diseased tissues by differentiating into tissue-specific cells, mesenchymal stem cells (MSCs) have been found to interact closely with immune cells, such as lymphocytes. In this review, we will discuss current research regarding the immunomodulatory properties of MSCs and the effects of lymphocytes on MSCs. We will suggest how these findings could be translated to potential clinical treatment. MSCs can regulate immune response by inducing activated T-cell apoptosis through the FAS ligand (FASL)/FAS-mediated death pathway via cell-cell contact, leading to up-regulation of regulatory T-cells (Tregs), which ultimately results in immune tolerance. Conversely, lymphocytes can impair survival and osteogenic differentiation of implanted MSCs by secreting the pro-inflammatory cytokines IFN-γ and TNF-α and/or through the FASL/FAS-mediated death pathway, thereby negatively affecting MSC-mediated tissue regeneration. One novel strategy to improve MSC-based tissue engineering involves the reduction of IFN-γ and TNF-α concentration by systemic infusion of Tregs or local application of aspirin. Further understanding of the mechanisms underlying the interplay between lymphocytes and MSCs may be helpful in the development of promising approaches to improve cell-based regenerative medicine and immune therapies.
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Affiliation(s)
- L Wang
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA 90033, USA
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167
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Liu Y, Shi S, Qu X, Shi J, Zhang L, Xu L, Teng Y. A Retrospective Study of Cisplatin/Vinorelbine Versus Capecitabine/Vinorelbine as Second-Line or Third-Line Treatment in Advanced Breast Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32960-4] [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: 11/26/2022] Open
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168
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Chen LT, Shi S, Li JY, Liu XM, Huang HF. High FSH level increase fat accumulation by downregulating AQP7 and glycrol efflux in adipocytes. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.159] [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: 10/28/2022]
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169
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Leung A, Lee P, Kiss A, Choyee S, Uyanne J, Akiyama K, Sedghizadeh P, Shi S, Le A. Immune Biomarkers of BRONJ in High-Risk Cancer Patients. J Oral Maxillofac Surg 2012. [DOI: 10.1016/j.joms.2012.06.052] [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: 11/16/2022]
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170
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Dong F, Shi S, Dai S, Liu X, Ma L, Sun Y. A two-step serum-free culture systems supports development of human preantral follicles in the presence of GDNF. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.346] [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: 11/17/2022]
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171
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Abstract
Dental pulp stem cells (DPSCs) possess immunoregulatory properties, but the underlying mechanism is not fully understood. Here we showed that DPSCs were capable of inducing activated T-cell apoptosis in vitro and ameliorating inflammatory-related tissue injuries when systemically infused into a murine colitis model. Mechanistically, DPSC-induced immunoregulation was associated with the expression of Fas ligand (FasL), a transmembrane protein that plays an important role in inducing the Fas apoptotic pathway. Knockdown of FasL expression by siRNA in DPSCs reduced their capacity to induce T-cell apoptosis in vitro and abolished their therapeutic effects in mice with colitis. However, the expression level of FasL did not affect either DPSC proliferation rate or multipotent differentiation potential. In summary, FasL governs the immunoregulatory property of DPSCs in the context of inducing T-cell apoptosis.
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Affiliation(s)
- Y Zhao
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA 90033, USA
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172
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Li Y, Shi S, Yang F, Gao J, Li Y, Tao M, Wang G, Zhang K, Gao C, Liu L, Li K, Li K, Liu Y, Wang X, Zhang J, Lv L, Wang X, Chen Q, Hu J, Sun L, Shi J, Chen Y, Xie D, Flint J, Kendler KS, Zhang Z. Patterns of co-morbidity with anxiety disorders in Chinese women with recurrent major depression. Psychol Med 2012; 42:1239-1248. [PMID: 22126712 PMCID: PMC3339636 DOI: 10.1017/s003329171100273x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Revised: 10/17/2011] [Accepted: 10/31/2011] [Indexed: 12/03/2022]
Abstract
BACKGROUND Studies conducted in Europe and the USA have shown that co-morbidity between major depressive disorder (MDD) and anxiety disorders is associated with various MDD-related features, including clinical symptoms, degree of familial aggregation and socio-economic status. However, few studies have investigated whether these patterns of association vary across different co-morbid anxiety disorders. Here, using a large cohort of Chinese women with recurrent MDD, we examine the prevalence and associated clinical features of co-morbid anxiety disorders. METHOD A total of 1970 female Chinese MDD patients with or without seven co-morbid anxiety disorders [including generalized anxiety disorder (GAD), panic disorder, and five phobia subtypes] were ascertained in the CONVERGE study. Generalized linear models were used to model association between co-morbid anxiety disorders and various MDD features. RESULTS The lifetime prevalence rate for any type of co-morbid anxiety disorder is 60.2%. Panic and social phobia significantly predict an increased family history of MDD. GAD and animal phobia predict an earlier onset of MDD and a higher number of MDD episodes, respectively. Panic and GAD predict a higher number of DSM-IV diagnostic criteria. GAD and blood-injury phobia are both significantly associated with suicidal attempt with opposite effects. All seven co-morbid anxiety disorders predict higher neuroticism. CONCLUSIONS Patterns of co-morbidity between MDD and anxiety are consistent with findings from the US and European studies; the seven co-morbid anxiety disorders are heterogeneous when tested for association with various MDD features.
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Affiliation(s)
- Y. Li
- Wellcome Trust Center for Human Genetics, Roosevelt Drive, Oxford, UK
| | - S. Shi
- Fudan University Affiliated Huashan Hospital, Shanghai, People's Republic of China
- Shanghai Jiao Tong University School of Medicine Affiliated Shanghai Mental Health Center, Shanghai, People's Republic of China
| | - F. Yang
- Shanghai Jiao Tong University School of Medicine Affiliated Shanghai Mental Health Center, Shanghai, People's Republic of China
| | - J. Gao
- Zhejiang Traditional Chinese Medical Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - Youhui Li
- No. 1 Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - M. Tao
- Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, People's Republic of China
| | - G. Wang
- Beijing Anding Hospital, Capital Medical University, Xicheng District, Beijing, People's Republic of China
| | - K. Zhang
- No. 1 Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - C. Gao
- No. 1 Hospital of Medical College of Xian Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - L. Liu
- Shandong Mental Health Center, Jinan, Shandong, People's Republic of China
| | - Kan Li
- Mental Hospital of Jiangxi Province, Nanchang, Jiangxi, People's Republic of China
| | - Keqing Li
- Hebei Mental Health Center, Baoding, Hebei, People's Republic of China
| | - Y. Liu
- The First Hospital of China Medical University, He Ping District, Shenyang, Liaoning, People's Republic of China
| | - Xumei Wang
- ShengJing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - J. Zhang
- No. 3 Affiliated Hospital of Sun Yat-sen University, Tian He District, Guangzhou, Guangdong, People's Republic of China
| | - L. Lv
- Psychiatric Hospital of Henan Province, No. 388 Jian She Zhong Lu, Xinxiang, Henan, 453002, People's Republic of China
| | - Xueyi Wang
- The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Q. Chen
- Dalian No. 7 People's Hospital and Dalian Mental Health Center, Gan Jing Zi District, Dalian, Liaoning, People's Republic of China
| | - J. Hu
- No. 1 Mental Health Center Affiliated Harbin Medical University, Nangang District, Harbin, Heilongjiang, People's Republic of China
| | - L. Sun
- Jilin Brain Hospital, Siping, Jilin, People's Republic of China
| | - J. Shi
- Xi'an Mental Health Center, Qujiang Xin District, Xi'an, Shaanxi, People's Republic of China
| | - Y. Chen
- Clinical Trial Service Unit, Richard Doll Building, Roosevelt Drive, Oxford, UK
| | - D. Xie
- Wellcome Trust Center for Human Genetics, Roosevelt Drive, Oxford, UK
| | - J. Flint
- Wellcome Trust Center for Human Genetics, Roosevelt Drive, Oxford, UK
| | - K. S. Kendler
- Virginia Institute for Psychiatric and Behavioral Genetics of Virginia Commonwealth University, Richmond, VA, USA
| | - Z. Zhang
- No. 4 Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
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173
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Henderson J, Shi S, Cakmaktepe S, Crawford TM. Pattern transfer nanomanufacturing using magnetic recording for programmed nanoparticle assembly. Nanotechnology 2012; 23:185304. [PMID: 22498791 DOI: 10.1088/0957-4484/23/18/185304] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We report a novel nanomanufacturing technique that incorporates patterned arrays built entirely from Fe₃O₄ nanoparticles into a flexible and transparent polymer film. First, the nanoparticles are patterned using the enormous magnetic field gradients at the surface of commercial disk drive media, and then the resulting architecture is transferred to the surface of a polymer film by spin-coating and peeling. Since the particles are immobilized by the field gradients during the spin-coating process, the patterned array is preserved after peeling. To demonstrate the potential of this technology, we fabricate a 5 mm diameter all-nanoparticle diffraction grating capable of producing a white-light optical spectrum. We also demonstrate several extensions to this technology, where, by adding an external magnetic field during assembly, we create both periodic variations in topography, as well as a nanocomposite with two vertically and horizontally separated nanoparticle layers. As this technique leverages the nanometer resolution inherent in current magnetic recording technology, strong potential exists for low-cost nanomanufacturing of optical and electronic devices from a variety of nanomaterials with ∼10 nm resolution.
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Affiliation(s)
- J Henderson
- Department of Physics and Astronomy, University of South Carolina, 712 Main Street, Columbia, SC 29208, USA
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174
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Gao J, Li Y, Cai Y, Chen J, Shen Y, Ni S, Wei Y, Qiu Y, Zhu X, Liu Y, Lu C, Chen C, Niu Q, Tang C, Yang Y, Wang Q, Cui W, Xia J, Liu T, Zhang J, Zhao B, Guo Z, Pan J, Chen H, Luo Y, Sun L, Xiao X, Chen Q, Zhao X, He F, Lv L, Guo L, Liu L, Li H, Shi S, Flint J, Kendler KS, Tao M. Perceived parenting and risk for major depression in Chinese women. Psychol Med 2012; 42:921-930. [PMID: 21943491 PMCID: PMC3315781 DOI: 10.1017/s0033291711001942] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 08/24/2011] [Accepted: 08/30/2011] [Indexed: 12/02/2022]
Abstract
BACKGROUND In Western countries, a history of major depression (MD) is associated with reports of received parenting that is low in warmth and caring and high in control and authoritarianism. Does a similar pattern exist in women in China? METHOD Received parenting was assessed by a shortened version of the Parental Bonding Instrument (PBI) in two groups of Han Chinese women: 1970 clinically ascertained cases with recurrent MD and 2597 matched controls. MD was assessed at personal interview. RESULTS Factor analysis of the PBI revealed three factors for both mothers and fathers: warmth, protectiveness, and authoritarianism. Lower warmth and protectiveness and higher authoritarianism from both mother and father were significantly associated with risk for recurrent MD. Parental warmth was positively correlated with parental protectiveness and negatively correlated with parental authoritarianism. When examined together, paternal warmth was more strongly associated with lowered risk for MD than maternal warmth. Furthermore, paternal protectiveness was negatively and maternal protectiveness positively associated with risk for MD. CONCLUSIONS Although the structure of received parenting is very similar in China and Western countries, the association with MD is not. High parental protectiveness is generally pathogenic in Western countries but protective in China, especially when received from the father. Our results suggest that cultural factors impact on patterns of parenting and their association with MD.
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Affiliation(s)
- J. Gao
- Zhejiang Traditional Chinese Medical Hospital, Hangzhou Zhejiang, P.R. China
| | - Y. Li
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Y. Cai
- Fudan University affiliated Huashan Hospital, Shanghai, P.R. China
| | - J. Chen
- Shanghai Jiao Tong University School of Medicine affiliated Shanghai Mental Health Centre, Shanghai, P.R. China
| | - Y. Shen
- Shanghai Tongji University affiliated Tongji Hospital, Shanghai, P.R. China
| | - S. Ni
- Nanjing Brain Hospital, Nanjing, Jiangsu, P.R. China
| | - Y. Wei
- No. 4 Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China
| | - Y. Qiu
- Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhe Jiang, P.R. China
| | - X. Zhu
- Zhejiang Traditional Chinese Medical Hospital, Hangzhou Zhejiang, P.R. China
| | - Y. Liu
- Tianjin Anding Hospital, Hexi District, Tianjin, P.R. China
| | - C. Lu
- Shandong Mental Health Center, Jinan, Shandong, P.R. China
| | - C. Chen
- No. 1 Hospital of Medical College of Xian Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Q. Niu
- No. 1 Hospital of Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - C. Tang
- No. 1 Mental Health Center Affiliated Harbin Medical University, Nangang District, Harbin, Heilongjiang, P.R. China
| | - Y. Yang
- Mental Health Center of West China Hospital of Sichuan University, Wu Hou District, Chengdu, Sichuan, P.R. China
| | - Q. Wang
- Beijing Anding Hospital, Capital Medical University, Xicheng District, Beijing, P.R. China
| | - W. Cui
- Hebei Mental Health Center, Baoding, Hebei, P.R. China
| | - J. Xia
- Shengjing Hospital of China Medical University, Heping District, Shenyang, Liaoning, P.R. China
| | - T. Liu
- Shenzhen Kangning Hospital, Luo Hu, Shenzhen, P.R. China
| | - J. Zhang
- No. 3 Affiliated Hospital of Sun Yat-sen University, Tian He District, Guangzhou, Guangdong, P.R. China
| | - B. Zhao
- No. 1 Hospital of Shanxi Medical University, Taiyuan, Shanxi, P.R. China
| | - Z. Guo
- Mental Hospital of Jiangxi Province, Nanchang, Jiangxi, P.R. China
| | - J. Pan
- The First Affiliated Hospital of Jinan University, Tian He District, Guangzhou, P.R. China
| | - H. Chen
- Wuhan Mental Health Center, Wuhan, P.R. China
| | - Y. Luo
- No. 3 Hospital of Heilongjiang Province, Beian, Heilongjiang, P.R. China
| | - L. Sun
- Jilin Brain Hospital, Siping, Jilin, P.R. China
| | - X. Xiao
- The First Hospital of China Medical University, He Ping District, Shenyang, P.R. China
| | - Q. Chen
- Dalian No. 7 People's Hospital and Dalian Mental Health Center, Gan Jing Zi District, Dalian, P.R. China
| | - X. Zhao
- The First Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - F. He
- Lanzhou University Second Hospital, Second Clinical Medical College of Lanzhou University, Lanzhou, Gansu Province, P.R. China
| | - L. Lv
- Psychiatric Hospital of Henan Province, Xinxiang, Henan, P.R. China
| | - L. Guo
- The Fourth Military Medical University affiliated Xijing Hospital, Xi'an, Shaanxi, P.R. China
| | - L. Liu
- No. 4 People's Hospital of Liaocheng, Liaocheng, Shandong, P.R. China
| | - H. Li
- Guangzhou Brain Hospital/Guangzhou Psychiatric Hospital, Fang Cun Da Dao, Li Wan District, Guangzhou, P.R. China
| | - S. Shi
- Virginia Commonwealth University, Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Richmond, VA, USA
| | - J. Flint
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - K. S. Kendler
- Virginia Commonwealth University, Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Richmond, VA, USA
| | - M. Tao
- Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhe Jiang, P.R. China
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Li W, Ren G, Huang Y, Su J, Han Y, Li J, Chen X, Cao K, Chen Q, Shou P, Zhang L, Yuan ZR, Roberts AI, Shi S, Le AD, Shi Y. Mesenchymal stem cells: a double-edged sword in regulating immune responses. Cell Death Differ 2012; 19:1505-13. [PMID: 22421969 PMCID: PMC3422473 DOI: 10.1038/cdd.2012.26] [Citation(s) in RCA: 302] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been employed successfully to treat various immune disorders in animal models and clinical settings. Our previous studies have shown that MSCs can become highly immunosuppressive upon stimulation by inflammatory cytokines, an effect exerted through the concerted action of chemokines and nitric oxide (NO). Here, we show that MSCs can also enhance immune responses. This immune-promoting effect occurred when proinflammatory cytokines were inadequate to elicit sufficient NO production. When inducible nitric oxide synthase (iNOS) production was inhibited or genetically ablated, MSCs strongly enhance T-cell proliferation in vitro and the delayed-type hypersensitivity response in vivo. Furthermore, iNOS−/− MSCs significantly inhibited melanoma growth. It is likely that in the absence of NO, chemokines act to promote immune responses. Indeed, in CCR5−/−CXCR3−/− mice, the immune-promoting effect of iNOS−/− MSCs is greatly diminished. Thus, NO acts as a switch in MSC-mediated immunomodulation. More importantly, the dual effect on immune reactions was also observed in human MSCs, in which indoleamine 2,3-dioxygenase (IDO) acts as a switch. This study provides novel information about the pathophysiological roles of MSCs.
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Affiliation(s)
- W Li
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University School of Medicine, 225 South Chongqing Road, Shanghai 200025, China
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176
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Patel S, Choyee S, Uyanne J, Nguyen AL, Lee P, Sedghizadeh PP, Kumar SKS, Lytle J, Shi S, Le AD. Non-exposed bisphosphonate-related osteonecrosis of the jaw: a critical assessment of current definition, staging, and treatment guidelines. Oral Dis 2012; 18:625-32. [PMID: 22420684 DOI: 10.1111/j.1601-0825.2012.01911.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Non-exposed bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a newly reported complication arising from bisphosphonate therapy that presents with atypical symptoms and no apparent mucosal fenestration or exposure of necrotic bone. The clinical observation of the presence of necrotic bone underneath normal epithelial coverage was not conclusive for the diagnosis of BRONJ based on current guidelines established by the American Association of Oral and Maxillofacial Surgeons (AAOMS) and the American Society for Bone and Mineral Research (ASBMR), which specify the presence of clinically exposed necrotic bone for more than 8 weeks. Hence, the purpose of this review is to critically assess the current guidelines for diagnosis and management of BRONJ and propose a modified staging system and treatment guidelines to properly address the non-exposed variant of BRONJ lesions.
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Affiliation(s)
- S Patel
- Orofacial Pain and Oral Medicine Center, Herman Ostrow School of Dentistry of University of Southern California, Los Angeles, CA 90033, USA
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177
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Shi S, Liu Y, Li Z, Wu J, Zhou X, Zeng F. Pharmacokinetics, pharmacodynamics, and tolerability of a generic formulation of exenatide: a randomized, open-label, single- and multiple-dose study in healthy Chinese volunteers. ACTA ACUST UNITED AC 2012; 62:75-82. [PMID: 22344551 DOI: 10.1055/s-0031-1295484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A randomized, open-label, dose-escalating study was designed to assess the pharmacokinetics, pharmacodynamics and tolerability of single and multiple subcutaneous administrations of exenatide in 24 healthy Chinese volunteers. The effects of gender on the pharmacokinetics of exenatide were also evaluated. Subjects were randomized to receive a single and multiple subcutaneous doses of 5 or 10 μg of exenatide. Following the single dose subjects received exenatide twice daily on days 2-4 and once on day 5. Sequential blood samples were collected at regular intervals from 0 to 8 h after single administration. Concomitantly the serum glucose concentrations were measured in each sample. Tolerability was assessed using physical examination, vital signs, laboratory analysis, and by interview of subjects. Pharmacokinetic parameters for exenatide after subcutaneous administration of a single dose of 5-10 μg were as follows: Cmax=77.7 (13.9) and 136.1 (15.2) pg/mL; AUC0-t=184.2 (49.7) and 309.7 (52.3) pg·h/mL; AUC0-∞=225.8 (77.4) and 365.4 (68.8) pg·h/mL; tmax (median [range])=1.00 (0.75-1.50) and 1.00 (0.75-1.50) h; t1/2 (mean [range])=1.4 (0.7-3.2) and 1.8 (1.0-2.5) h, respectively. Because of its short t1/2, Css, min could not be detected in any plasma samples prior to daily dosing on days 3-5. Pharmacokinetic parameters for exenatide after administration of multiple doses of 5 or 10 μg were as follows: Cmax=81.2 (12.2) and 144.5 (13.3) pg/mL; AUC0-t=181.1 (39.4) and 275.6 (45.0) pg·h/mL; AUC0-∞=217.2 (44.8) and 313.3 (48.4) pg·h/mL; tmax=1.10 (0.75-1.25) and 1.00 (1.00-1.25) h; t1/2=1.6 (0.8-2.2) and 1.4 (0.9-2.7) h, respectively. Both doses of exenatide were associated with significant reductions in serum glucose concentrations (P<0.001) when compared to baseline levels. Mean percentage of maximal decline for serum glucose concentrations after single and multiple doses were 15.6% and 19.9% for 5 μg, respectively; as well as 26.3% and 28.7% for 10 μg, respectively. 12 of the 24 subjects reported a total of 75 adverse events. The rate increased with higher doses of exenatide: after 5 μg only one subject experienced at least 1 adverse event but following 10 μg 11 subjects were affected. 2 subjects receiving the higher dose of 10 μg exenatide dropped out because of adverse events (nausea and vomiting). The most common adverse events were of gastrointestinal origin (e. g. decreased appetite, nausea and vomiting) and of mild severity. In conclusion, in healthy Chinese subjects, AUC and Cmax increased in proportion to the dose, whereas t1/2 was independent of dose. The pharmacokinetic parameters after multiple dosing were consistent with those after single doses. No significant gender differences were noted for pharmacokinetic variables. Both exenatide doses were associated with significant reductions in serum glucose levels. Adverse events were mainly of gastrointestinal origin and their incidence was dose-dependent.
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Affiliation(s)
- S Shi
- Huazhong University of Science and Technology, Jiefang Avenue, Wuhan, People's Republic of China.
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178
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Cong E, Li Y, Shao C, Chen J, Wu W, Shang X, Wang Z, Liu Y, Liu L, Gao C, Li Y, Wu J, Deng H, Liu J, Sang W, Liu G, Rong H, Gan Z, Li L, Li K, Pan J, Li Y, Cui Y, Sun L, Liu L, Liu H, Zhao X, Zhang Y, Zhang R, Chen Y, Wang X, Li H, Chen Y, Lin Y, Kendler KS, Flint J, Shi S. Childhood sexual abuse and the risk for recurrent major depression in Chinese women. Psychol Med 2012; 42:409-417. [PMID: 21835095 PMCID: PMC3250087 DOI: 10.1017/s0033291711001462] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 07/06/2011] [Accepted: 07/06/2011] [Indexed: 02/05/2023]
Abstract
BACKGROUND Studies in Western countries have repeatedly shown that women with a history of childhood sexual abuse (CSA) are at increased risk for developing major depression (MD). Would this relationship be found in China? METHOD Three levels of CSA (non-genital, genital, and intercourse) were assessed by self-report in two groups of Han Chinese women: 1970 clinically ascertained with recurrent MD and 2597 matched controls. Diagnostic and other risk factor information was assessed at personal interview. Odds ratios (ORs) were calculated by logistic regression and regression coefficients by linear or Poisson regression. RESULTS Any form of CSA was significantly associated with recurrent MD [OR 3.26, 95% confidence interval (CI) 1.95-5.45]. This association strengthened with increasing CSA severity: non-genital (OR 2.47, 95% CI 1.17-5.23), genital (OR 2.77, 95% CI 1.32-5.83) and intercourse (OR 13.35, 95% CI 1.83-97.42). The association between any form of CSA and MD remained significant after accounting for parental history of depression, childhood emotional neglect (CEN), childhood physical abuse (CPA) and parent-child relationship. Among the depressed women, those with CSA had an earlier age of onset, longer depressive episodes and an increased risk for generalized anxiety disorder (GAD; OR 1.92, 95% CI 1.39-2.66) and dysthymia (OR 2.16, 95% CI 1.52-3.09). CONCLUSIONS In Chinese women CSA is strongly associated with MD and this association increases with greater severity of CSA. Depressed women with CSA have an earlier age of onset, longer depressive episodes and increased co-morbidity with GAD and dysthymia. Although reporting biases cannot be ruled out, our results are consistent with the hypothesis that, as in Western countries, CSA substantially increases the risk for MD in China.
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Affiliation(s)
- E. Cong
- Huashan Hospital, Fudan University, Shanghai, P.R. China
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Y. Li
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - C. Shao
- Huashan Hospital, Fudan University, Shanghai, P.R. China
| | - J. Chen
- Shanghai Mental Health Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - W. Wu
- Tongji Hospital, Shanghai Tongji University, Shanghai, P.R. China
| | - X. Shang
- Nanjing Brain Hospital, Nanjing, Jiangsu, P.R. China
| | - Z. Wang
- No. 4 Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R. China
| | - Y. Liu
- Tianjin Anding Hospital, Hexi District, Tianjin, P.R. China
| | - L. Liu
- Shandong Mental Health Centre, Jinan, Shandong, P.R. China
| | - C. Gao
- No. 1 Hospital of Medical College of Xian Jiaotong University, Xi'an, Shaanxi, P.R. China
| | - Y. Li
- No. 1 Hospital of Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - J. Wu
- No. 1 Mental Health Centre Affiliated Harbin Medical University, Nangang District, Harbin, Heilongjiang, P.R. China
| | - H. Deng
- Mental Health Centre of West China Hospital of Sichuan University, Wu Hou District, Chengdu, Sichuan, P.R. China
| | - J. Liu
- Beijing Anding Hospital, Capital Medical University, Xicheng District, Beijing, P.R. China
| | - W. Sang
- Hebei Mental Health Centre, Baoding, Hebei, P.R. China
| | - G. Liu
- Shengjing Hospital of China Medical University, Heping District Shenyang, Liaoning, P.R. China
| | - H. Rong
- Shenzhen Kangning Hospital, Luo Hu, Shenzhen, Guangdong, P.R. China
| | - Z. Gan
- No. 3 Affiliated Hospital of Sun Yat-sen University, Tian He District, Guangzhou, Guangdong, P.R. China
| | - L. Li
- No. 1 Hospital of Shanxi Medical University, Taiyuan, Shanxi, P.R. China
| | - K. Li
- Mental Hospital of Jiangxi Province, Nanchang, Jiangxi, P.R. China
| | - J. Pan
- The First Affiliated Hospital of Jinan University, Tian He District, Guangzhou, Guangdong, P.R. China
| | - Y. Li
- Wuhan Mental Health Centre, Wuhan, P.R. China
| | - Y. Cui
- No. 3 Hospital of Heilongjiang Province, Beian, Heilongjiang, P.R. China
| | - L. Sun
- Jilin Brain Hospital, Siping, Jilin, P.R. China
| | - L. Liu
- The First Hospital of China Medical University, He Ping District, Shenyang, Liaoning, P.R. China
| | - H. Liu
- Dalian No. 7 People's Hospital and Dalian Mental Health Centre, Gan Jing Zi District, Dalian, Liaoning, P.R. China
| | - X. Zhao
- The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Y. Zhang
- Lanzhou University Second Hospital, Second Clinical Medical College of Lanzhou University, Lanzhou, Gansu Province, P.R. China
| | - R. Zhang
- Psychiatric Hospital of Henan Province, Xinxiang, Henan, P.R. China
| | - Y. Chen
- The Fourth Military Medical University affiliated Xijing Hospital, Xi'an, Shaanxi, P.R. China
| | - X. Wang
- No. 4 People's Hospital of Liaocheng, Liaocheng, Shandong, P.R. China
| | - H. Li
- Guangzhou Brain Hospital/Guangzhou Psychiatric Hospital, Li Wan District, Guangzhou, Guangdong, P.R. China
| | - Y. Chen
- Clinical Trial Service Unit, Richard Doll Building, Oxford, UK
| | - Y. Lin
- Fuzhou Neuropsychiatric Hospital, Fuzhou City, Fujian, P.R. China
| | - K. S. Kendler
- Department of Psychiatry, Virginia Commonwealth University, Virginia Institute for Psychiatric and Behavioral Genetics, Richmond, VA, USA
| | - J. Flint
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - S. Shi
- Huashan Hospital, Fudan University, Shanghai, P.R. China
- Shanghai Mental Health Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
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179
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Shi S, Zhao Y. MR Imaging Findings of Giant Trichilemmal Carcinoma on the Scalp. A Case Report. Neuroradiol J 2011; 24:946-50. [PMID: 24059904 DOI: 10.1177/197140091102400622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2010] [Accepted: 09/17/2011] [Indexed: 11/17/2022] Open
Abstract
We describe the magnetic resonance imaging findings of a huge trichilemmal carcinoma (TLC) on the parietal and occipital region of the scalp in one patient. Our aim is to discuss the clinical, radiologic, and pathologic features of scalp TLC and to review relevant literature regarding this tumor. One patient with recent rapid tumor growth in the parietal and occipital region of the scalp underwent MR studies and subtotal resection. The tumor was seen as a poorly marginated and lobulated soft-tissue mass with isointense signal on T1-weighted images and hyperintense signal on T2-weighted images. Necrosis and ulceration were also found on the tumor surface. The TLC has been massively invading the nearby skull, meninges, brain tissue, and superior sagittal sinus. After exhibiting contrast, the tumor showed significant enhancement, with small portions remaining unenhanced. Subtotal excision of the mass and reconstruction of the scalp were performed. Microscopically, the mass was composed of trabecular growth of tumor cells with clear cytoplasm, prominent nucleoli, frequent mitoses, and foci of trichilemmal keratinization. Tumor on the scalp with heterogeneous, mixed signals on T2-weighted images, significant enhancement of solid portion, and local infiltration accompanied by surface deep ulceration may indicate a TLC. Wide surgical excision with tumor-free margins remains the best choice for treatment.
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Affiliation(s)
- S Shi
- Department of Radiology, First Affiliated Hospital of Bengbu Medical College; Bengbu, Anhui Province, China -
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180
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Li B, Qu C, Chen C, Liu Y, Akiyama K, Yang R, Chen F, Zhao Y, Shi S. Basic fibroblast growth factor inhibits osteogenic differentiation of stem cells from human exfoliated deciduous teeth through ERK signaling. Oral Dis 2011; 18:285-92. [PMID: 22151351 DOI: 10.1111/j.1601-0825.2011.01878.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE Stem cells from human exfoliated deciduous teeth (SHED) are a unique postnatal stem cell population capable of regenerating mineralized tissue and treating immune disorders. However, the mechanism that controls SHED differentiation is not fully understood. Here, we showed that basic fibroblast growth factor (bFGF) treatment attenuated SHED-mediated mineralized tissue regeneration through activation of the extracellular signal-regulated kinase (ERK) 1/2 pathway. MATERIAL AND METHOD The level of mineralized nodule formation was assessed by alizarin red staining. Expression levels of osteogenic genes, osteocalcin and runt-related transcription factor 2, were examined by RT-PCR. Subcutaneous implantation approach was used to assess in vivo bone formation. Downstream signaling pathways of bFGF were examined by Western blotting. RESULT Activation of ERK1/2 signaling by bFGF treatment inhibited WNT/β-catenin pathway, leading to osteogenic deficiency of SHED. ERK1/2 inhibitor treatment rescued bFGF-induced osteogenic differentiation deficiency. CONCLUSION These data suggest that bFGF inhibits osteogenic differentiation of SHED via ERK1/2 pathway. Blockade ERK1/2 signaling by small molecular inhibitor treatment improves bone formation of SHED after bFGF treatment.
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Affiliation(s)
- B Li
- Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Shaanxi, China
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181
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Tang Y, Liao C, Xu X, Song H, Shi S, Yang S, Zhao F, Xu W, Chen X, Mao J, Zhang L, Pan B. Evaluation of Th1/Th2 cytokines as a rapid diagnostic tool for severe infection in paediatric haematology/oncology patients by the use of cytometric bead array technology. Clin Microbiol Infect 2011; 17:1666-73. [DOI: 10.1111/j.1469-0691.2011.03490.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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182
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Peng C, Shi S, Li Z, Chen Y, Li X, Tian Y. The evaluation of the effect of hydrogen sulfide postconditioning by P-V loop against myocardial I/R injury in rats. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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183
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Choyee S, Uyanne J, Akiyama K, Sedghizadeh P, Yamashita D, Green R, Garcia A, Shi S, Le A. Predictors of BRONJ in High-Risk Cancer Patients. J Oral Maxillofac Surg 2011. [DOI: 10.1016/j.joms.2011.06.031] [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: 10/17/2022]
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184
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Chi Y, Zheng Z, Zhou A, Yang L, Qu T, Jiang W, Shi S, Sun Y, Song Y, Kang S, Wang J. Randomized, single-centered, phase II clinical trial of nimotuzumab plus cisplatin and S-1 as first-line therapy in patients with advanced gastric cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e21021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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185
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Wang F, Xiao M, Shi S, Guan X, Yuan ZX, Lu CB, You QJ. CD34 positive cells seeded on small caliber man-made vascular grafts exhibit increased antithrombogenic property compared with unfractioned mononuclear cells. J Cardiovasc Surg (Torino) 2010; 51:885-894. [PMID: 21124286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM The aim of this study was to compare the therapeutic potential of purified CD34+ cells with that of unfractioned mononuclear cells (MNCs) for the antithrombogenic property after seeding on the small caliber man-made grafts. METHODS Unfractioned MNCs and CD34+ cells were isolated from canine bone marrow. Differentiation of CD34 cells and unfractioned MNCs into endothelial cells were examined by CD31and vWF immunohistochemistry or immunofluorescence stain, endothelial cell function were evaluated via low-density lipoprotein (ac-LDL) - DiL incorpration and in vitro angiogenesis assay. Platelet adhesion assay was performed to determine antiplatelet adhesion property of the cells in vitro. Equal number of both cells were seeded onto the luminal surface of small caliber man-made grafts and implanted to replace a segment of common carotid artery. At different time points (24 h, 72 h, and 1 week) the grafts were retrieved. HE staining and SEM exam were performed. RESULTS CD34+ cells acquired significantly more CD31 and VWF expression, increased angiogenic potential and low-density lipoprotein (ac-LDL) incorporation compared to unfractioned MNCs under the induction of VEGF. More platelets were found to adhere to the surface of unfractioned MNCs group than to the CD34+ cell group. In vivo study demonstrated that more platelet adhesion and thrombus formation were observed in the unfractioned MNCs group rather than the CD34+ group. All the grafts in both groups were patent after implantation, except one graft seeded with unfractioned MNCs, occluded at 1 week. Statistically lower ratio of thrombi was found in the CD34+ cell seeding group at 24 h and 1 week after implantation, compared with the unfractioned MNCs one (P<0.05). CONCLUSION CD34+ cell exerted better antithrombogenic property than unfractioned MNCs after seeding onto the small caliber vessel grafts.
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Affiliation(s)
- F Wang
- Department of Thoracic and Cardiovascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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186
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Abstract
UNLABELLED Although human orofacial bone-marrow-derived mesenchymal stem cells showed differentiation traits distinctly different from those of mesenchymal stem cells (MSCs) derived from long bone marrow (BMMSCs), mouse MSCs derived from orofacial bone have not been isolated due to technical difficulties, which in turn precludes the use of mouse models to study and cure orofacial diseases. In this study, we developed techniques to isolate and expand mouse orofacial bone/bone-marrow-derived MSCs (OMSCs) from mandibles and verified their MSC characteristics by single-colony formation, multi-lineage differentiation, and in vivo tissue regeneration. Activated T-lymphocytes impaired OMSCs via the Fas/Fas ligand pathway, as occurs in BMMSCs. Furthermore, we found that OMSCs are distinct from BMMSCs with respect to regulating T-lymphocyte survival and proliferation. Analysis of our data suggests that OMSCs are a unique population of MSCs and play an important role in systemic immunity. ABBREVIATIONS BMMSC, bone marrow mesenchymal stem cell; HA/TCP, hydroxyapatite/tricalcium phosphate; OMSC, orofacial mesenchymal stem cell; OVX, ovariectomized.
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Affiliation(s)
- T Yamaza
- Center for Craniofacial Molecular Biology, University of Southern California School of Dentistry, 2250 Alcazar Street, CSA 103, Los Angeles, CA 90033, USA
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187
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Gu Z, Akiyama K, Ma X, Zhang H, Feng X, Yao G, Hou Y, Lu L, Gilkeson GS, Silver RM, Zeng X, Shi S, Sun L. Transplantation of umbilical cord mesenchymal stem cells alleviates lupus nephritis in MRL/lpr mice. Lupus 2010; 19:1502-14. [PMID: 20647254 DOI: 10.1177/0961203310373782] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease, which, despite the advances in immunosuppressive medical therapies, remains potentially fatal in some patients, especially in treatment-refractory patients. This study found that transplantation of umbilical cord mesenchymal stem cells (UC-MSCs) has the same therapeutic effect as transplantation of bone marrow mesenchymal stem cells (BM-MSCs), which has been reported to be efficient in treating SLE-related symptoms in MRL/lpr mice. Multi-treatment (at the 18th, 19th, and 20th weeks of age) of 1 × 10(6) UC-MSCs was able to decrease the levels of 24-h proteinuria, serum creatinine, and anti-double-stranded DNA (dsDNA) antibody, and the extent of renal injury such as crescent formation in MRL/lpr mice. A lower, but still significant, reduction in these parameters was also observed in mice receiving a single dose of UC-MSCs (at the 18th week). UC-MSCs treatment also inhibited expression of monocyte chemotactic protein-1 (MCP-1) and high-mobility group box 1 (HMGB-1) expression in a similar fashion. UC-MSCs labeled with carboxyfluorescein diacetate succinimidyl ester (CFSE) were found in the lungs and kidneys 1 week post infusion. In addition, after 11 weeks post UC-MSCs infusion, human cells were found in kidney of UC-MSCs-treated mice. These findings indicated that UC-MSCs transplantation might be a potentially promising approach in the treatment of lupus nephritis, possibly by inhibiting MCP-1 and HMGB-1 production.
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Affiliation(s)
- Z Gu
- Department of Rheumatology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
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188
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Tarle S, Shi S, Kaigler D. Development of a serum-free system to expand dental-derived stem cells: PDLSCs and SHEDs. J Cell Physiol 2010; 226:66-73. [DOI: 10.1002/jcp.22304] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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189
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Feng F, Akiyama K, Liu Y, Yamaza T, Wang TM, Chen JH, Wang BB, Huang GTJ, Wang S, Shi S. Utility of PDL progenitors for in vivo tissue regeneration: a report of 3 cases. Oral Dis 2010; 16:20-8. [PMID: 20355278 DOI: 10.1111/j.1601-0825.2009.01593.x] [Citation(s) in RCA: 211] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Periodontal disease is an inflammatory disorder with widespread morbidities involving both oral and systemic health. The primary goal of periodontal treatment is the regeneration of the lost or diseased periodontium. In this study, we retrospectively examined feasibility and safety of reconstructing the periodontal intrabony defects with autologous periodontal ligament progenitor (PDLP) implantation in three patients. MATERIALS AND METHODS In this retrospective pilot study, we treated 16 teeth with at least one deep intrabony defect of probing depth (PD) > OR = 6 mm with PDLP transplantation and evaluated clinical outcome measures in terms of probing depth, gingival recession and attachment gain for a duration of 32-72 months. Furthermore, we compare PDLPs with standard PDL stem cells (PDLSCs) and confirmed that PDLPs possessed progenitor characters. RESULTS Clinical examination indicated that transplantationof PDLPs may provide therapeutic benefit for the periodontal defects. All treated patients showed no adverse effects during the entire course of follow up. We also found that PDLPs were analogous to PDLSCs in terms of high proliferation, expression of mesenchymal surface molecules, multipotent differentiation, and in vivo tissue regain. However, PDLPs failed to express scleraxis, a marker of tendon, as seen in PDLSCs. CONCLUSIONS This study demonstrated clinical and experimental evidences supporting a potential efficacy and safety of utilizing autologous PDL cells in the treatment of human periodontitis.
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Affiliation(s)
- F Feng
- Stem Bio Tek Corporation, Taipei, Taiwan
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190
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Walker R, Shi S, Schermer M. P52 A rapid prenatal screening assay to simultaneously detect aneuploidies for all chromosomes from single CVS and amniocentesis samples using BACs on Beads™. Reprod Biomed Online 2010. [DOI: 10.1016/s1472-6483(10)62368-1] [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: 11/16/2022]
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191
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Sakai VT, Zhang Z, Dong Z, Neiva KG, Machado MAAM, Shi S, Santos CF, Nör JE. SHED differentiate into functional odontoblasts and endothelium. J Dent Res 2010; 89:791-6. [PMID: 20395410 DOI: 10.1177/0022034510368647] [Citation(s) in RCA: 268] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Studies on mechanisms underlying the differentiation of dental pulp stem cells are critical for the understanding of the biology of odontogenesis and for dental tissue engineering. Here, we tested the hypothesis that stem cells from exfoliated deciduous teeth (SHED) differentiate into functional odontoblasts and endothelial cells. SHED were seeded in tooth slice/scaffolds and implanted subcutaneously into immunodeficient mice. SHED differentiated into functional odontoblasts that generated tubular dentin, as determined by tetracycline staining and confocal microscopy. These cells also differentiated into vascular endothelial cells, as determined by beta-galactosidase staining of LacZ-tagged SHED. In vitro, vascular endothelial growth factor (VEGF) induced SHED to express VEGFR2, CD31, and VE-Cadherin (markers of endothelium) and to organize into capillary-like sprouts. VEGF induced ERK and AKT phosphorylation (indicative of differentiation), while inhibiting phosphorylation of STAT3 (indicative of 'stemness'). Collectively, this work demonstrates that SHED can differentiate into angiogenic endothelial cells and odontoblasts capable of generating tubular dentin.
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Affiliation(s)
- V T Sakai
- Department of Pediatric Dentistry, Orthodontics and Community Health, Bauru School of Dentistry, University of São Paulo, Brazil
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192
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Zhang X, Chan B, Lama S, Satikumar V, Shi S, Bao R. Influence of impact dents on the fatigue strength of aluminium alloy friction stir welds. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.proeng.2010.03.182] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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193
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Abstract
It is known that stem cells from exfoliated deciduous teeth (SHED) can be induced to differentiate into odontoblasts. However, the nature of dentin-derived morphogenic signals required for dental pulp stem cell differentiation remains unclear. The hypothesis underlying this work is that dentin-derived Bone Morphogenetic Proteins (BMP) are necessary for the differentiation of SHED into odontoblasts. We observed that SHED express markers of odontoblastic differentiation (DSPP, DMP-1, MEPE) when seeded in human tooth slice/scaffolds and cultured in vitro, or implanted subcutaneously into immunodeficient mice. In contrast, SHED cultured in deproteinized tooth slice/scaffolds, or scaffolds without a tooth slice, do not express these markers. SHED express the BMP receptors BMPR-IA, BMPR-IB, and BMPR-II. Notably, blockade of BMP-2 signaling inhibited the expression of markers of odontoblastic differentiation by SHED cultured in tooth slice/scaffolds. Collectively, this work demonstrates that dentin-derived BMP-2 is required to induce the differentiation of SHED into odontoblasts.
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Affiliation(s)
- L. Casagrande
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Angiogenesis Research Laboratory, Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry
| | - F.F. Demarco
- Angiogenesis Research Laboratory, Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry
- Department of Operative Dentistry, School of Dentistry, Federal University of Pelotas, Brazil
| | - Z. Zhang
- Angiogenesis Research Laboratory, Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry
| | - F.B. Araujo
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - S. Shi
- Center for Craniofacial Molecular Biology, School of Dentistry, University of Southern California, Los Angeles, USA
| | - J.E. Nör
- Angiogenesis Research Laboratory, Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry
- Department of Biomedical Engineering, College of Engineering, University of Michigan
- Department of Otolaryngology, School of Medicine, University of Michigan, 1011 N. University, Rm. 2309, Ann Arbor, MI 48109-1078, USA
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194
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Prather DW, Redding B, Creazzo T, Marchena E, Shi S. Integration of silicon nanocrystals and erbium ring cavities for a silicon pumped Er:SiO2 laser. J Nanosci Nanotechnol 2010; 10:1643-1649. [PMID: 20355551 DOI: 10.1166/jnn.2010.2038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this work we present a novel two-stage approach to achieve electrically pumped lasing on a CMOS compatible material platform in the telecom region. The proposed design consists of an electrically pumped silicon nanocrystal (Si-nc) light source acting as an optical pump for an Erbium doped silicate (Er:SiO2) lasing cavity. The integrated design, based on concentric disks of Si-nc and Er:SiO2, provides a means of coupling the Si-nc pump signal to the Er ions without requiring overlap of the Er based lasing mode with the Si-nc material. We present an electromagnetic analysis of the pump and lasing modes in the proposed configuration. We also present fabrication and characterization of Si-nc and Er:SiO2 microdisks as components of the integrated design.
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Affiliation(s)
- D W Prather
- University of Delaware, Department of Electrical and Computer Engineering, Newark, DE 19711, USA
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195
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Shi S, Yoon DY, Hodge-Bell K, Huerta-Yepez S, Hankinson O. Aryl hydrocarbon nuclear translocator (hypoxia inducible factor 1beta) activity is required more during early than late tumor growth. Mol Carcinog 2010; 49:157-65. [PMID: 19824022 DOI: 10.1002/mc.20585] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
c4 is a derivative of the mouse hepatoma cell line, Hepa-1, that harbors a mutation in the aryl hydrocarbon receptor nuclear translocator gene (Arnt, or hypoxia inducible factor 1beta [HIF-1beta]) leading to loss of activity. Clone 3 cells were generated by introducing a doxycycline-repressible Arnt expression vector into c4 cells. Clone 3 cells were injected subcutaneously into immunosuppressed mice, which were treated with doxycyline (a) throughout the growth of the subsequent tumor xenografts, or (b) from day 7 through to the end of the experiment (day 30), or not treated (c). Tumors in all groups grew exponentially between days 14 and 30, and at rates that were indistinguishable from each other. However, tumors in group a were smaller than those of the other two groups throughout the measurable growth period, while tumor volumes in groups b and c were not significantly different from each other. The degrees of vascularity and apoptosis did not correlate with the differences in degrees of growth between the different groups. Thus, Arnt is required during the early stages of growth of the tumors but less in later stages. Since Arnt does not detectably effect the growth kinetics of Hepa-1 cells either during hypoxia or normoxia, this requirement is unlikely to reflect a direct effect of Arnt on cell proliferation, and is therefore probably a consequence of altered interaction(s) between the tumor cells and the host. These studies suggest that Arnt (and HIF-1alpha/HIF-2alpha) inhibitors will be particularly effective against smaller tumors, including micrometastases.
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Affiliation(s)
- S Shi
- Department of Pathology and Laboratory Medicine, Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California 90095-1732, USA
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196
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Huang GTJ, Gronthos S, Shi S. Mesenchymal stem cells derived from dental tissues vs. those from other sources: their biology and role in regenerative medicine. J Dent Res 2009; 88:792-806. [PMID: 19767575 DOI: 10.1177/0022034509340867] [Citation(s) in RCA: 1215] [Impact Index Per Article: 81.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
To date, 5 different human dental stem/progenitor cells have been isolated and characterized: dental pulp stem cells (DPSCs), stem cells from exfoliated deciduous teeth (SHED), periodontal ligament stem cells (PDLSCs), stem cells from apical papilla (SCAP), and dental follicle progenitor cells (DFPCs). These postnatal populations have mesenchymal-stem-cell-like (MSC) qualities, including the capacity for self-renewal and multilineage differentiation potential. MSCs derived from bone marrow (BMMSCs) are capable of giving rise to various lineages of cells, such as osteogenic, chondrogenic, adipogenic, myogenic, and neurogenic cells. The dental-tissue-derived stem cells are isolated from specialized tissue with potent capacities to differentiate into odontogenic cells. However, they also have the ability to give rise to other cell lineages similar to, but different in potency from, that of BMMSCs. This article will review the isolation and characterization of the properties of different dental MSC-like populations in comparison with those of other MSCs, such as BMMSCs. Important issues in stem cell biology, such as stem cell niche, homing, and immunoregulation, will also be discussed.
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Affiliation(s)
- G T-J Huang
- University of Maryland, College of Dental Surgery, Dental School, Department of Endodontics, Prosthodontics and Operative Dentistry, 650 West Baltimore St., Baltimore, MD 21201, USA.
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197
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Abstract
Damage to the dentin matrix instigates the proliferation and mobilization of dental progenitor cells to the injury site, the mechanisms of which are not defined. EphB receptors and ephrin-B ligands expressed within the perivascular niche of dental pulp have been implicated following tooth injury. We propose that elevated levels of ephrin-B1 following injury may prevent the proliferation and migration of dental pulp stem cell (DPSC), while EphB/ephrin-B interaction facilitates odontoblastic differentiation. The migration, proliferation, and differentiation of DPSC in response to Eph/ephrin-B molecules was assessed in an established ex vivo tooth injury model and by in vitro assays for the assessment of colony formation and differentiation. Analysis of our data demonstrated that EphB forward signaling promoted DPSC proliferation, while inhibiting migration. Conversely, reverse signaling enhanced DPSC mineral production. These observations suggest that EphB/ephrin-B molecules are important for perivascular DPSC migration toward the dentin surfaces and differentiation into functional odontoblasts, following damage to the dentin matrix.
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Affiliation(s)
- A. Arthur
- Bone and Cancer Laboratories, Mesenchymal Stem Cell Group, Division of Haematology, Institute of Medical and Veterinary Science, Hanson Institute/University of Adelaide, Frome Road, Adelaide 5000, SA, Australia
- The Australian Research Council, Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, 5005, SA, Australia
- School of Molecular and Biomedical Science -Genetics-, University of Adelaide, Adelaide, 5005, SA, Australia; and
- Center for Craniofacial Molecular Biology, School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - S. Koblar
- Bone and Cancer Laboratories, Mesenchymal Stem Cell Group, Division of Haematology, Institute of Medical and Veterinary Science, Hanson Institute/University of Adelaide, Frome Road, Adelaide 5000, SA, Australia
- The Australian Research Council, Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, 5005, SA, Australia
- School of Molecular and Biomedical Science -Genetics-, University of Adelaide, Adelaide, 5005, SA, Australia; and
- Center for Craniofacial Molecular Biology, School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - S. Shi
- Bone and Cancer Laboratories, Mesenchymal Stem Cell Group, Division of Haematology, Institute of Medical and Veterinary Science, Hanson Institute/University of Adelaide, Frome Road, Adelaide 5000, SA, Australia
- The Australian Research Council, Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, 5005, SA, Australia
- School of Molecular and Biomedical Science -Genetics-, University of Adelaide, Adelaide, 5005, SA, Australia; and
- Center for Craniofacial Molecular Biology, School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - S. Gronthos
- Bone and Cancer Laboratories, Mesenchymal Stem Cell Group, Division of Haematology, Institute of Medical and Veterinary Science, Hanson Institute/University of Adelaide, Frome Road, Adelaide 5000, SA, Australia
- The Australian Research Council, Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, 5005, SA, Australia
- School of Molecular and Biomedical Science -Genetics-, University of Adelaide, Adelaide, 5005, SA, Australia; and
- Center for Craniofacial Molecular Biology, School of Dentistry, University of Southern California, Los Angeles, CA, USA
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198
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Shi S, Chen K, Ge X, Ni B. Lessons from the diagnosis and treatment of spontaneous vertebral arterial dissection. Case report. Interv Neuroradiol 2009; 15:203-8. [PMID: 20465900 DOI: 10.1177/159101990901500211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Accepted: 04/04/2009] [Indexed: 11/15/2022] Open
Abstract
SUMMARY A 36-year-old man presented a sudden left occipital headache and right limb weakness after tooth-brushing. Conventional catheter digital subtraction angiography (DSA) showed a left VA occlusion at the crotch of the posterior inferior cerebellar artery. Four days later, the patient got worse. The angiogram showed the left vertebral artery had reopened and the basilar trunk occluded above the AICA. He died two days later and autopsy demonstrated a dissection of the basilar arteries. Based on the autopsy data from the patient in this study, we suggest that the BA dissection might be due to left VA dissection, and placing a stent on the juncture between the uninjured VA and the basilar trunk might be an effective method to prevent fatal BA occlusion.
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Affiliation(s)
- S Shi
- Department of Neurology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China -
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199
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Wang Z, Shi S, Xu M, Yang H. 16S rRNA-based analysis of bacterial diversity
in the microbial flora of the goose intestinal tract. J Anim Feed Sci 2009. [DOI: 10.22358/jafs/66429/2009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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200
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Shi S, Honghao Z, Zhang Y, Zhao Y, Kelong H, Liu S. A High-Speed Counter-Current Chromatography-- HPLC--DAD Method for Preparative Isolation and Purification of Two Polymethoxylated Flavones From Taraxacum mongolicum. J Chromatogr Sci 2009; 47:349-53. [DOI: 10.1093/chromsci/47.5.349] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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