51
|
Xie X, Zou B, Cao W, Pascual C, Xiao K, Guan Z, Lindsley C, Weaver C, Fang J. 0200 DIRECT ACTIVATION OF G-PROTEIN-COUPLED INWARD RECTIFYING K+ CHANNELS PROMOTE SLEEP IN RODENTS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
52
|
Konoeda C, Guan Z, Duchesneau P, Watanabe T, Juvet S, Liu M, Martinu T, Keshavjee S. Role of Club Cells in the Development of Obliterative Bronchiolitis in Murine Transplanted Lungs. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
53
|
Chen J, Xiong J, Wang J, Zheng L, Gao Y, Guan Z. Capecitabine/cisplatin versus 5-fluorouracil/cisplatin in Chinese patients with advanced and metastatic gastric cancer: Re-analysis of efficacy and safety data from the ML17032 study. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw371.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
54
|
Guo L, Guan Z, Li H, Yang X. Hydrogen inhibits cytotrophoblast cells apoptosis in hypertensive disorders complicating pregnancy. Cell Mol Biol (Noisy-le-grand) 2016; 62:59-64. [PMID: 27262804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 05/11/2016] [Indexed: 06/05/2023]
Abstract
Hypertensive disorders complicating pregnancy (HDCP) is one of the most serious medical disorders during pregnancy. Hydrogen is a therapeutic antioxidant and used to treat HDCP effectively. However, the molecular mechanism about the effect of hydrogen on HDCP still remains unclear. In this study, we found ROS content in HDCP group was significantly higher than that in the control and was reduced markedly in the presence of 100μmol/L hydrogen. IL6, Caspase3, Bax1, P-JAK2, P-Stat3 and P-p38 expression was much higher than the control, and was notably decreasedby the application of 100μmol/L hydrogen. Bcl2 expression in HDCP group was notably lower than the control and was increased by 100 μmol/L hydrogen. The apoptosis rate of cytotrophoblast cells was decreased, andratio of cytotrophoblast cells at G1 and G2 phase was increased and decreased by hydrogen, respectively. All those data indicated a potential molecular mechanism of hydrogen-mediated treatment in HDCP.
Collapse
|
55
|
Matsuda Y, Wang X, Oishi H, Guan Z, Saito M, Liu M, Keshavjee S, Chow CW. Spleen Tyrosine Kinase Modulates Fibrous Airway Obliteration and Associated Lymphoid Neogenesis After Transplantation. Am J Transplant 2016; 16:342-52. [PMID: 26308240 DOI: 10.1111/ajt.13442] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 06/16/2015] [Accepted: 06/21/2015] [Indexed: 01/25/2023]
Abstract
Chronic lung allograft dysfunction, the major cause of death following lung transplantation, usually manifests as irreversible airflow obstruction associated with obliterative bronchiolitis (OB), a lesion characterized by chronic inflammation, lymphoid neogenesis, fibroproliferation and small airway obliteration. Spleen tyrosine kinase (Syk), a tyrosine kinase that regulates B cell function and innate immunity, has been implicated in the pathogenesis of chronic inflammation and tissue repair. This study evaluated the role of Syk in development of OB, using an intrapulmonary tracheal transplant model of OB with the conditional Syk-knockout Syk(flox/flox) //rosa26-CreER(T2) mice and a Syk-selective inhibitor, GSK2230413. BALB/c trachea allografts were transplanted into Syk-knockout (Syk(del/del) ) mice or wild-type C57BL/6 recipients treated with GSK2230413. At day 28, histological analysis revealed that in the Syk(del/del) and GSK2230413-treated C57BL/6 recipients, the graft lumen remained open compared with allografts transplanted into Syk-expressing (Syk(flox/flox) ) and placebo control-treated C57BL/6 recipients. Immunofluorescence showed lymphoid neogenesis with distinct B and T cell zones in control mice. In contrast, lymphoid neogenesis was absent and few B or T cells were found in Syk(del/del) and GSK2230413-treated mice. These observations suggest that inhibition of Syk may be a potential therapeutic strategy for the management of OB following lung transplantation.
Collapse
|
56
|
Shi M, Peng RR, Gao Z, Zhang S, Lu H, Guan Z, Gao Y, Wang C, Zhou P. Risk profiles of neurosyphilis in HIV-negative patients with primary, secondary and latent syphilis: implications for clinical intervention. J Eur Acad Dermatol Venereol 2015; 30:659-66. [PMID: 26660338 DOI: 10.1111/jdv.13514] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 10/01/2015] [Indexed: 11/26/2022]
|
57
|
Cheng AL, Cornelio G, Shen L, Prince T, Yang TS, Chung IJ, Dai G, Lin JK, Sharma A, Yeh KH, Ma B, Zaatar A, Guan Z, Masood N, Srimuninnimit V, Cheung Yau T, Beier F, Chatterjee S, Lim R. 149PD Association between early tumour shrinkage (ETS) and outcomes in RAS-wild type (WT) patients (pts) with metastatic colorectal cancer (mCRC) receiving first-line FOLFOX or FOLFIRI + cetuximab every other week in the APEC study. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
58
|
Huang F, Ahmad W, Duan M, Liu Z, Guan Z, Zhang M, Qiao B, Li Y, Song Y, Song Y, Chen Y, Amjad Ali M. Efficiency of live attenuated and inactivated rabies viruses in prophylactic and post exposure vaccination against the street virus strain. Acta Virol 2015; 59:117-24. [PMID: 26104328 DOI: 10.4149/av_2015_02_117] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Rabies remains an enigmatic and widely discussed global infectious disease and causes an increasing number of deaths. The currently used highly effective prophylactic and post exposure (p.e.) vaccination depends solely upon inexpensive, effective and safe vaccines to counteract the spread of the disease. In this study, the potential of an attenuated Chinese rabies vaccine (SRV9) strain in prophylactic and p.e. vaccination against the street strain of rabies virus (RV) was evaluated in mice. Prophylactic vaccination consisting of one intramuscular (i.m.) dose of SRV9 protected 100% of mice from intracerebral (i.c.) challenge with a lethal dose of the street virus. The latter was detected in the brain of mice at day 6 post challenge by RT-PCR. Post exposure vaccination was performed at days 1, 2, 3, 4, 5 and 6 post infection (p.i.) with either SRV9 or inactivated rabies vaccine. The survival rates after i.m. inoculation of SRV9 at the indicated days were 70%, 50%, 30%, 20%, 10%, and 0%, respectively; the corresponding survival rates for the inactivated rabies vaccine were 30%, 20%, 10%, 0%, 0%, and 0%, respectively. However, 100%, 90%, 70%, 50%, 20%, 10%, and 10% of mice survived after i.c. inoculation of SRV9 at the indicated days. The increased permeability of the blood-brain barrier and the infiltration of CD19+ B cells into the central nervous system after i.c. inoculation of SRV9 are regarded as prerequisites for the clearance of the street virus. The obtained data suggest that SRV9 is a promising candidate for prophylactic and p.e. vaccination against rabies infection and that it exhibits a potential for the control of rabies in China.
Collapse
|
59
|
Sun G, Hu Z, Min Z, Yan X, Guan Z, Su H, Fu Y, Ma X, Chen YG, Zhang MQ, Tao Q, Wu W. Small C-terminal Domain Phosphatase 3 Dephosphorylates the Linker Sites of Receptor-regulated Smads (R-Smads) to Ensure Transforming Growth Factor β (TGFβ)-mediated Germ Layer Induction in Xenopus Embryos. J Biol Chem 2015; 290:17239-49. [PMID: 26013826 DOI: 10.1074/jbc.m115.655605] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Indexed: 01/27/2023] Open
Abstract
Germ layer induction is one of the earliest events shortly after fertilization that initiates body formation of vertebrate embryos. In Xenopus, the maternally deposited transcriptional factor VegT promotes the expression of zygotic Nodal/Activin ligands that further form a morphogen gradient along the vegetal-animal axis and trigger the induction of the three germ layers. Here we found that SCP3 (small C-terminal domain phosphatase 3) is maternally expressed and vegetally enriched in Xenopus embryos and is essential for the timely induction of germ layers. SCP3 is required for the full activation of Nodal/Activin and bone morphogenetic protein signals and functions via dephosphorylation in the linker regions of receptor-regulated Smads. Consistently, the linker regions of receptor-regulated Smads are heavily phosphorylated in fertilized eggs, and this phosphorylation is gradually removed when embryos approach the midblastula transition. Knockdown of maternal SCP3 attenuates these dephosphorylation events and the activation of Nodal/Activin and bone morphogenetic protein signals after midblastula transition. This study thus suggested that the maternal SCP3 serves as a vegetally enriched, intrinsic factor to ensure a prepared status of Smads for their activation by the upcoming ligands during germ layer induction of Xenopus embryos.
Collapse
|
60
|
Oishi H, Martinu T, Sato M, Guan Z, Saito T, Sakamoto J, Hirayama S, Matsuda Y, Cypel M, Hwang D, Liu M, Keshavjee S. A Novel Ex Vivo Intrabronchial Delivery of Ientivirus IL-10 Gene Therapy Attenuates Both Acute Allograft Rejection and Bronchiolitis Obliterans After Murine Orthotopic Lung Transplantation. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
61
|
Ohsumi A, Marseu K, Slinger P, McRae K, Iskender I, Chen M, Hashimoto K, Oishi H, Kim H, Guan Z, Hwang D, Waddell T, Liu M, Keshavjee S, Cypel M. The Effect of Sevoflurane in Pre- and Postconditioning of Ischemia-Reperfusion Injury in a Rat Lung Transplantation Model. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
62
|
Zhang H, Yu H, Wang J, Zhang M, Wang X, Ahmad W, Duan M, Guan Z. The BM2 protein of influenza B virus interacts with p53 and inhibits its transcriptional and apoptotic activities. Mol Cell Biochem 2015; 403:187-97. [DOI: 10.1007/s11010-015-2349-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 01/30/2015] [Indexed: 12/14/2022]
|
63
|
Zhang X, Zhang F, Zhao H, Guan Z, Chen S, Jiang J, Fang W, Chen F. Comparative analysis of genetic diversity among species of Chrysanthemum and its related genera using inter-simple sequence repeat and sequence-related amplified polymorphism markers. GENETICS AND MOLECULAR RESEARCH 2014; 13:8469-79. [PMID: 25366741 DOI: 10.4238/2014.october.20.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, inter-simple sequence repeats (ISSRs) and sequence-related amplified polymorphism (SRAP) were applied to assess the genetic diversity in 38 species of Chrysanthemum and related genera. A total of 204 and 567 bands were amplified by 24 ISSR and 25 SRAP primers, of which 196 (97%) and 557 (99%) were polymorphic, respectively. The ISSR-based genetic similarity ranged from 0.016 to 0.886 and averaged 0.201, while the SRAP-based genetic similarity varied from 0.010 to 0.811 and averaged 0.122. Both the ISSR and SRAP techniques revealed similar clustering patterns and grouped species of Chrysanthemum and Ajania together. The results of principal coordinate analysis corroborated the unweighted pair group method with arithmetic average clustering. Additionally, results from ISSR and SRAP data were significantly correlated (r = 0.89, P < 0.001). Knowledge about genetic diversity among species can aid the transfer of traits of interest from the wild into cultivated chrysanthemum in future distant interspecific breeding.
Collapse
|
64
|
Zhang W, Cai S, Li W, Xu Y, Gu W, Guan Z, Chi P, Song C, Cai J, Xu J, Lin J, Zhang K, Li D, Wang X, Pei H, Zhang X, Wang J, Wan D, Dang C, Yuan X. Quantitative Analyses of Early Tumor Shrinkage on Clinical Outcome in an Open, Non-Randomized, Multicenter Phase Ii Clinical Trial (Clime Study). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
65
|
Cai S, Zhang W, Li W, Xu Y, Gu W, Guan Z, Cai J, Song C, Xu J, Chi P, Lin J, Zhang K, Li D, Wang X, Pei H, Zhang X, Wan D, Wang J, Dang C, Yuan X. Cetuximab Plus Mfolfox-6 As First-Line Therapy for Patients with Kras Wild-Type Unresectable Colorectal Liver-Limited Metastases: an Open, Non-Randomized, Multicenter Phase Ii Clinical Trial (Clime Study). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
66
|
Hu X, Lin C, Shen B, Ruan N, Guan Z, Chen Y, Zhang Y. Conserved odontogenic potential in embryonic dental tissues. J Dent Res 2014; 93:490-5. [PMID: 24554539 DOI: 10.1177/0022034514523988] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
Classic tissue recombination studies have demonstrated that, in the early developing mouse tooth germ, the odontogenic potential, known as the tooth-inductive capability, resides initially in the dental epithelium and then shifts to the dental mesenchyme. However, it remains unknown if human embryonic dental tissues also acquire such odontogenic potential. Here we present evidence that human embryonic dental tissues indeed possess similar tooth-inductive capability. We found that human dental epithelium from the cap stage but not the bell stage was able to induce tooth formation when confronted with human embryonic lip mesenchyme. In contrast, human dental mesenchyme from the bell stage but not the cap stage could induce mouse embryonic second-arch epithelium as well as human keratinocyte stem cells, to become enamel-secreting ameloblasts. We showed that neither post-natal human dental pulp stem cells (DPSCs) nor stem cells from human exfoliated deciduous teeth (SHED) possess odontogenic potential or are odontogenic-competent. Our results demonstrate a conservation of odontogenic potential in mouse and human dental tissues during early tooth development, and will have an implication in the future generation of stem-cell-based bioengineered human replacement teeth.
Collapse
|
67
|
Gu X, Guan Z, Chai Z, Zhou P. Unilateral mydriasis as the primary sign of neurosyphilis. Infection 2013; 42:215-7. [DOI: 10.1007/s15010-013-0517-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 07/23/2013] [Indexed: 12/01/2022]
|
68
|
Wang C, Lu H, Gu X, Guan Z, Zhou P. O01.3 Regulatory T Cells in Peripheral Blood and Cerebrospinal Fluid of Syphilis Patients with and Without Neurological Involvement: A Comprehensive and Comparative Study. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
69
|
Hirayama S, Sato M, Loisel-Meyer S, Matsuda Y, Oishi H, Guan Z, Saito T, Yeung J, Cypel M, Hwang DM, Medin JA, Liu M, Keshavjee S. Lentivirus IL-10 gene therapy down-regulates IL-17 and attenuates mouse orthotopic lung allograft rejection. Am J Transplant 2013; 13:1586-93. [PMID: 23601206 DOI: 10.1111/ajt.12230] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 02/14/2013] [Accepted: 02/14/2013] [Indexed: 01/25/2023]
Abstract
The purpose of the study was to examine the effect of lentivirus-mediated IL-10 gene therapy to target lung allograft rejection in a mouse orthotopic left lung transplantation model. IL-10 may regulate posttransplant immunity mediated by IL-17. Lentivirus-mediated trans-airway luciferase gene transfer to the donor lung resulted in persistent luciferase activity up to 6 months posttransplant in the isograft (B6 to B6); luciferase activity decreased in minor-mismatched allograft lungs (B10 to B6) in association with moderate rejection. Fully MHC-mismatched allograft transplantation (BALB/c to B6) resulted in severe rejection and complete loss of luciferase activity. In minor-mismatched allografts, IL-10-encoding lentivirus gene therapy reduced the acute rejection score compared with the lentivirus-luciferase control at posttransplant day 28 (3.0 ± 0.6 vs. 2.0 ± 0.6 (mean ± SD); p = 0.025; n = 6/group). IL-10 gene therapy also significantly reduced gene expression of IL-17, IL-23, and retinoic acid-related orphan receptor (ROR)-γt without affecting levels of IL-12 and interferon-γ (IFN-γ). Cells expressing IL-17 were dramatically reduced in the allograft lung. In conclusion, lentivirus-mediated IL-10 gene therapy significantly reduced expression of IL-17 and other associated genes in the transplanted allograft lung and attenuated posttransplant immune responses after orthotopic lung transplantation.
Collapse
|
70
|
Bi S, Deng C, Zhou T, Guan Z, Li L, Li H, Zhang L, Yang L, Lu W. Remifentanil–sevoflurane interaction models of circulatory response to laryngoscopy and circulatory depression. Br J Anaesth 2013; 110:729-40. [DOI: 10.1093/bja/aes504] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
71
|
Machuca T, Cypel M, Hsin M, Zamel R, Yeung J, Chen M, Saito T, Guan Z, Waddell T, Liu M, Keshavjee S. Protein Expression Profiling Predicts Graft Performance in Clinical Ex Vivo Lung Perfusion. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
72
|
Machuca T, Cypel M, Zhao Y, Yeung J, Chun YM, Zamel R, Chen M, Hsin M, Saito T, Guan Z, Grasemann H, dePerrot M, Waddell T, Liu M, Keshavjee S. Endothelin-1 and Big-Endothelin-1 as Potential Biomarkers in Clinical Ex Vivo Lung Perfusion. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
73
|
Wu D, He YH, Deng X, Guan Z. N-Fluorobenzenesulfonimide as Catalyst for the Three-Component Synthesis of Isoquinuclidines. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
74
|
Zhang Y, Meng F, Li W, Zhou C, Guan Z, Fan H. Association of chemotactic factor receptor 5 gene with breast cancer. GENETICS AND MOLECULAR RESEARCH 2013; 12:5289-300. [DOI: 10.4238/2013.november.7.4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
75
|
Bharucha AE, Isowa H, Hiro S, Guan Z. Differential effects of selective and non-selective muscarinic antagonists on gastrointestinal transit and bowel function in healthy women. Neurogastroenterol Motil 2013; 25:e35-43. [PMID: 23171069 DOI: 10.1111/nmo.12043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND The gastrointestinal effects of antimuscarinic drugs used to treat overactive bladder may be related to the selectivity of these agents for M(3) -muscarinic receptor subtypes. We compared the effects of non-selective (fesoterodine) and M(3)-selective (solifenacin) antimuscarinics on gastrointestinal transit in healthy women. METHODS Gastric emptying (GE), small-intestinal transit (colonic filling at 6 h), colonic transit [geometric center at 24 h (GC24; primary endpoint) and 48 h (GC48)], and bowel habits were assessed by scintigraphy and bowel diaries before and after randomization to fesoterodine 8 mg, solifenacin 10 mg, or placebo (2 : 2 : 1) for 14 days. An interim analysis to finalize sample size was conducted. KEY RESULTS After 60 subjects [placebo (n = 12), fesoterodine (n = 25), solifenacin (n = 23)] completed the study, the study was terminated due to a prespecified criterion (sample size ≥ 452.5 needed to provide ≥ 80% power to demonstrate superiority of fesoterodine over solifenacin in GC24). Compared with baseline, (i) placebo delayed small-intestinal, but not colonic, transit, (ii) fesoterodine significantly increased GE t(1/2) vs placebo (17.0 min; P = 0.027), and (iii) fesoterodine and solifenacin delayed small-intestinal (-36.8% and -21.8%, respectively, P < 0.001 vs placebo) and colonic transit (GC24: -0.44 and -0.49, respectively, P < 0.05 vs placebo; GC48: -0.25 and -0.65, respectively, P > 0.05 vs placebo). Solifenacin increased stool hardness from baseline (P = 0.010 for difference vs fesoterodine); stool frequency was comparable. CONCLUSIONS & INFERENCES In healthy women, fesoterodine had greater effects on small-intestinal transit and solifenacin had greater effects on colonic transit; the latter finding may explain why solifenacin, but not fesoterodine, increased stool hardness.
Collapse
|