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María de los Ángeles Carrasco-Ruiz,Laura G. Hernández-Aragón,Jesús Ramsés Chávez-Ríos,Jorge Rodríguez-Antolín,Pablo Pacheco,Margarita Martínez-Gómez,Estela Cuevas-Romero,Francisco Castelán 대한배뇨장애요실금학회 2018 International Neurourology Journal Vol.22 No.3
Purpose: To characterize the relationship between serum estradiol levels and the expression of glucose transporter type 4 (Glut4) in the pubococcygeus and iliococcygeus muscles in female rats. Methods: The muscles were excised from virgin rats during the metestrus and proestrus stages of the estrous cycle, and from sham and ovariectomized rats implanted with empty or estradiol benzoate–filled capsules. The expression of estrogen receptors (ERs) was inspected in the muscles at metestrus and proestrus. Relative Glut4 expression, glycogen content, and serum glucose levels were measured. Appropriate statistical tests were done to identify significant differences (P≤0.05). Results: The pubococcygeus and iliococcygeus muscles expressed ERα and ERβ. Glut4 expression and glycogen content in the pubococcygeus muscle were higher at proestrus than at metestrus. No significant changes were observed in the iliococcygeus muscle. In ovariectomized rats, the administration of estradiol benzoate increased Glut4 expression and glycogen content in the pubococcygeus muscle alone. Conclusions: High serum estradiol levels increased Glut4 expression and glycogen content in the pubococcygeus muscle, but not in the iliococcygeus muscle.
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Serum Sclerostin in Hepatitis C Virus Infected Patients
E. González-Reimers,Javier López-Prieto,Ricardo Pelazas-González,M.Remedios Alemán-Valls,María José de la Vega-Prieto,Carlos Jorge-Ripper,M. Carmen Durán-Castellón,F Santolaria-Fernández 대한골대사학회 2014 대한골대사학회지 Vol.21 No.1
Background: Sclerostin inhibits osteoblast functions, differentiations, and survival rates. As an endogenous inhibitor of the Wnt/β-catenin pathway, the sclerostin should be re-lated to decreased bone masses, although several studies indicate opposite results. Inaddition, it may be related to insulin resistances and carbohydrate metabolisms, a rela-tion shared with other markers of bone metabolisms, such as osteocalcin. Hepatitis C vi-rus (HCV) infected patients may present osteoporosis, and frequently show liver steato-sis, which is a consequence of insulin resistance. The behaviour of sclerostin in these pa-tients is yet unknown. The aim of this work is to analyse the relationships between se-rum sclerostin and osteocalcin levels and bone mineral density (BMD), liver functions,the intensity of liver steatosis and biochemical markers of bone homeostasis and insulinresistance in HCV-infected patients. Methods: Forty HCV patients with 20 years of ageand gender-matching controls were included in this study and underwent bone densi-tometry. Serum sclerostin, osteocalcin, collagen telopeptide, adiponectin, leptin, insulin,resistin, tumor necrosis factor (TNF)-α, and interleukin (IL)-6 were determined. Liver fatwas histomorphometrically assessed. Results: Sclerostin levels were slightly higher inpatients than in controls, and were directly related to BMD at different parts of the skele-ton, also to the serum telopeptide, and to the liver steatosis and TNF-α. On the contrary,osteocalcin showed a significant direct relationship with serum adiponectin, and an in-verse one with IL-6. Conclusions: Serum sclerostin levels were within the normal rangein HCV patients, and correlated directly with BMD and serum telopeptide. In addition,the relationships of sclerostin and osteocalcin with variables associated with insulin re-sistance suggested the role of bones for intermediary metabolisms.
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Verónica García-Villamar,Laura G. Hernández-Aragón,Jesús R. Chávez-Ríos,Arturo Ortega,Margarita Martínez-Gómez,Francisco Castelán 대한배뇨장애요실금학회 2018 International Neurourology Journal Vol.22 No.S2
Purpose: To evaluate the expression of glial cell line-derived neurotrophic factor (GDNF) and its receptor, GDNF family receptor alpha subunit 1 (GFRα-1) in the pelvic (middle third) vagina and, particularly, in the paravaginal ganglia of nulliparous and primiparous rabbits. Methods: Chinchilla-breed female rabbits were used. Primiparas were killed on postpartum day 3 and nulliparas upon reaching a similar age. The vaginal tracts were processed for histological analyses or frozen for Western blot assays. We measured the ganglionic area, the Abercrombie-corrected number of paravaginal neurons, the cross-sectional area of the neuronal somata, and the number of satellite glial cells (SGCs) per neuron. The relative expression of both GDNF and GFRα-1 were assessed by Western blotting, and the immunostaining was semiquantitated. Unpaired two-tailed Student t -test or Wilcoxon test was used to identify statistically significant differences (P≤0.05) between the groups. Results: Our findings demonstrated that the ganglionic area, neuronal soma size, Abercrombie-corrected number of neurons, and number of SGCs per neuron were similar in nulliparas and primiparas. The relative expression of both GDNF and GFRα- 1 was similar. Immunostaining for both GDNF and GFRα-1 was observed in several vaginal layers, and no differences were detected regarding GDNF and GFRα-1 immunostaining between the 2 groups. In the paravaginal ganglia, the expression of GDNF was increased in neurons, while that of GFRα-1 was augmented in the SGCs of primiparous rabbits. Conclusions: The present findings suggest an ongoing regenerative process related to the recovery of neuronal soma size in the paravaginal ganglia, in which GDNF and GFRα-1 could be involved in cross-talk between neurons and SGCs.
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Kim, D.S.,Kim, M.J.,Cha, S.H.,Kim, H.M.,Kim, J.H.,Kim, K.N.,Lee, J.S.,Choi, J.Y.,Castells, V.B.,Kim, H.S.,Bang, J.,Oster, P. Decker 2016 INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES Vol.45 No.-
<P>Objectives: To assess the safety and immunogenicity of a meningococcal polysaccharide diphtheria toxoid conjugate vaccine (MenACYW-D) in a Korean population. Methods: This was a phase III, blind-observer, controlled study in which participants aged 11-55 years were randomized (2: 1 ratio) to a single dose of MenACYW-D or tetanus/diphtheria/acellular pertussis (Tdap) vaccine. Outcomes included rates of seroconversion against all serogroups (>= 4-fold increase in antibody titer from pre-vaccination), geometric mean titers (GMTs) at days 0 and 28 based on a serum bactericidal assay using baby rabbit complement, rates of seroprotection (titer >= 1: 128) at day 28, and safety. Results: A total of 300 participants were enrolled in the study (200 MenACYW-D and 100 Tdap). Seroconversion rates for serogroups A, C, Y, and W-135 were 77.8%, 88.3%, 74.6%, and 92.4%, respectively, for the MenACYW-D group and 9.3%, 8.1%, 12.2%, and 8.2%, respectively, for the Tdap group. The proportions of participants with pre-vaccination titers >= 1: 128 were 57.3%, 12.6%, 51.5%, and 22.2% for serogroups A, C, Y, and W-135, respectively; post-vaccination rates were 98.5%, 89.4%, 96.0%, and 95.0% for the MenACYW-D group. A lower proportion of participants reported solicited reactions with MenACYW-D (46.2%) compared with Tdap (76.8%). Conclusion: A single dose of MenACYW-D was well tolerated and elicited a robust immune response in Korean adolescents and adults. (C) 2016 The Authors. Published by Elsevier Ltd on behalf of International Society for Infectious Diseases. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).</P>
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