Base de dados : MEDLINE Pesquisa : E04.270.282.685 [Categoria DeCS] Referências encontradas : 23089 [refinar] Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 2309

ir para página

1 / 23089

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29214781 [Au] Autor: Kim B; Choi KM; Yim HS; Park HT; Yim JH; Lee MG [Ad] Endereço: Department of Physiology, Korea University College of Medicine, Seoul, Korea. [Ti] Título: Adipogenic and Lipolytic Effects of Ascorbic Acid in Ovariectomized Rats. [So] Source: Yonsei Med J;59(1):85-91, 2018 Jan. [Is] ISSN: 1976-2437 [Cp] País de publicação: Korea (South) [La] Idioma: eng [Ab] Resumo: PURPOSE: Ascorbic acid has been reported to have an adipogenic effect on 3T3-L1 preadipocytes, while evidence also suggests that ascorbic acid reduces body weight in humans. In this study, we tested the effects of ascorbic acid on adipogenesis and the balance of lipid accumulation in ovariectomized rats, in addition to long-term culture of differentiated 3T3-L1 adipocytes. MATERIALS AND METHODS: Murine 3T3-L1 fibroblasts and ovariectomized rats were treated with ascorbic acid at various time points. In vitro adipogenesis was analyzed by Oil Red O staining, and in vivo body fat was measured by a body composition analyzer using nuclear magnetic resonance. RESULTS: When ascorbic acid was applied during an early time point in 3T3-L1 preadipocyte differentiation and after bilateral ovariectomy (OVX) in rats, adipogenesis and fat mass gain significantly increased, respectively. However, lipid accumulation in well-differentiated 3T3-L1 adipocytes showed a significant reduction when ascorbic acid was applied after differentiation (10 days after induction). Also, oral ascorbic acid administration 4 weeks after OVX in rats significantly reduced both body weight and subcutaneous fat layer. In comparison to the results of ascorbic acid, which is a well-known cofactor for an enzyme of collagen synthesis, and the antioxidant ramalin, a potent antioxidant but not a cofactor, showed only a lipolytic effect in well-differentiated 3T3-L1 adipocytes, not an adipogenic effect. CONCLUSION: Taking these results into account, we concluded that ascorbic acid has both an adipogenic effect as a cofactor of an enzymatic process and a lipolytic effect as an antioxidant. [Mh] Termos MeSH primário: Adipogenia/efeitos dos fármacos Ácido Ascórbico/farmacologia Lipólise/efeitos dos fármacos Ovariectomia [Mh] Termos MeSH secundário: Células 3T3-L1 Adipócitos/efeitos dos fármacos Adipócitos/metabolismo Animais Antioxidantes/farmacologia Composição Corporal/efeitos dos fármacos Peso Corporal/efeitos dos fármacos Diferenciação Celular/efeitos dos fármacos Feminino Fibroblastos/efeitos dos fármacos Fibroblastos/metabolismo Camundongos Ratos Sprague-Dawley [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Antioxidants); PQ6CK8PD0R (Ascorbic Acid) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 171208 [St] Status: MEDLINE [do] DOI: 10.3349/ymj.2018.59.1.85

2 / 23089

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 28457941 [Au] Autor: Menazza S; Sun J; Appachi S; Chambliss KL; Kim SH; Aponte A; Khan S; Katzenellenbogen JA; Katzenellenbogen BS; Shaul PW; Murphy E [Ad] Endereço: Systems Biology Center, National Heart Lung and Blood Institute, NIH, Bethesda, MD, United States. [Ti] Título: Non-nuclear estrogen receptor alpha activation in endothelium reduces cardiac ischemia-reperfusion injury in mice. [So] Source: J Mol Cell Cardiol;107:41-51, 2017 Jun. [Is] ISSN: 1095-8584 [Cp] País de publicação: England [La] Idioma: eng [Ab] Resumo: Steroid hormone receptors including estrogen receptors (ER) classically function as ligand-regulated transcription factors. However, estrogens also elicit cellular effects through binding to extra-nuclear ER (ERα, ERß, and G protein-coupled ER or GPER) that are coupled to kinases. How extra-nuclear ER actions impact cardiac ischemia-reperfusion (I/R) injury is unknown. We treated ovariectomized wild-type female mice with estradiol or an estrogen-dendrimer conjugate (EDC), which selectively activates extra-nuclear ER, or vehicle interventions for two weeks. I/R injury was then evaluated in isolated Langendorff perfused hearts. Two weeks of treatment with estradiol significantly decreased infarct size and improved post-ischemic contractile function. Similarly, EDC treatment significantly decreased infarct size and increased post-ischemic functional recovery compared to vehicle-treated hearts. EDC also caused an increase in myocardial protein S-nitrosylation, consistent with previous studies showing a role for this post-translational modification in cardioprotection. In further support of a role for S-nitrosylation, inhibition of nitric oxide synthase, but not soluble guanylyl cyclase blocked the EDC mediated protection. The administration of ICI182,780, which is an agonist of G-protein coupled estrogen receptor (GPER) and an antagonist of ERα and ERß, did not result in protection; however, ICI182,780 significantly blocked EDC-mediated cardioprotection, indicating participation of ERα and/or ERß. In studies determining the specific ER subtype and cellular target involved, EDC decreased infarct size and improved functional recovery in mice lacking ERα in cardiomyocytes. In contrast, protection was lost in mice deficient in endothelial cell ERα. Thus, extra-nuclear ERα activation in endothelium reduces cardiac I/R injury in mice, and this likely entails increased protein S-nitrosylation. Since EDC does not stimulate uterine growth, in the clinical setting EDC-like compounds may provide myocardial protection without undesired uterotrophic and cancer-promoting effects. [Mh] Termos MeSH primário: Receptor alfa de Estrogênio/genética Receptor beta de Estrogênio/genética Isquemia/genética Traumatismo por Reperfusão/genética [Mh] Termos MeSH secundário: Animais Endotélio/metabolismo Endotélio/patologia Receptor alfa de Estrogênio/antagonistas & inibidores Receptor beta de Estrogênio/antagonistas & inibidores Estrogênios/genética Estrogênios/metabolismo Feminino Regulação da Expressão Gênica/efeitos dos fármacos Seres Humanos Isquemia/metabolismo Isquemia/patologia Camundongos Ovariectomia Processamento de Proteína Pós-Traducional/efeitos dos fármacos Receptores Estrogênicos/antagonistas & inibidores Receptores Acoplados a Proteínas-G/antagonistas & inibidores Traumatismo por Reperfusão/metabolismo Traumatismo por Reperfusão/patologia Transdução de Sinais/efeitos dos fármacos [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Estrogen Receptor alpha); 0 (Estrogen Receptor beta); 0 (Estrogens); 0 (GPR30 protein, mouse); 0 (Receptors, Estrogen); 0 (Receptors, G-Protein-Coupled) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170502 [St] Status: MEDLINE

3 / 23089

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 28468850 [Au] Autor: Collins FL; Rios-Arce ND; Atkinson S; Bierhalter H; Schoenherr D; Bazil JN; McCabe LR; Parameswaran N [Ad] Endereço: Department of Physiology, Michigan State University, East Lansing, Michigan. [Ti] Título: Temporal and regional intestinal changes in permeability, tight junction, and cytokine gene expression following ovariectomy-induced estrogen deficiency. [So] Source: Physiol Rep;5(9), 2017 May. [Is] ISSN: 2051-817X [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: Estrogen deficiency that occurs during menopause is associated with wide-ranging consequences, including effects on the gastrointestinal system. Although previous studies have implicated a role for estrogen in modulating colonic permeability and inflammatory gene expression, the kinetics of these changes following loss of estrogen and whether they are intestinal region specific are unknown. To test this, we performed sham or ovariectomy (OVX) surgery in BALB/c mice and examined permeability (in vivo and ex vivo) and gene expression changes in the duodenum, jejunum, ileum, and colon at 1, 4, and 8 weeks postsurgery. In vivo permeability, assessed by FITC-dextran gavage and subsequent measures of serum levels, indicated that OVX significantly increased whole intestinal permeability 1 week postsurgery before returning to sham levels at 4 and 8 weeks. Permeability of individual intestinal sections, measured ex vivo by Ussing chambers, revealed specific regional and temporal responses to OVX, with the most dynamic changes exhibited by the ileum. Analysis of gene expression, by qPCR and by mathematical modeling, revealed an OVX-specific effect with tight junction and inflammatory gene expression elevated and suppressed with both temporal and regional specificity. Furthermore, ileal and colonic expression of the tight junction protein occludin was found to be significantly correlated with expression of TNF and IL-1 Together, our studies reveal previously unappreciated effects of estrogen deficiency in specific intestinal segments and further demonstrate temporal links between estrogen deficiency, inflammatory genes, and intestinal permeability. [Mh] Termos MeSH primário: Citocinas/metabolismo Estrogênios/deficiência Absorção Intestinal Intestinos/metabolismo Ovariectomia/efeitos adversos Junções Íntimas/metabolismo [Mh] Termos MeSH secundário: Animais Citocinas/genética Feminino Intestinos/citologia Intestinos/fisiologia Camundongos Camundongos Endogâmicos BALB C Junções Íntimas/genética [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Cytokines); 0 (Estrogens) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180305 [Lr] Data última revisão: 180305 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170505 [St] Status: MEDLINE

4 / 23089

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 27771127 [Au] Autor: Liedberg F; Jancke G; Sörenby A; Kannisto P [Ad] Endereço: Department of Urology, Skåne University Hospital, Lund, Sweden; Department of Translational Medicine, Lund University, Malmö, Sweden. Electronic address: fredrik.liedberg@med.lu.se. [Ti] Título: Should we Refrain from Performing Oophorectomy in Conjunction with Radical Cystectomy for Bladder Cancer? [So] Source: Eur Urol;71(6):851-853, 2017 Jun. [Is] ISSN: 1873-7560 [Cp] País de publicação: Switzerland [La] Idioma: eng [Ab] Resumo: Radical cystectomy with neoadjuvant chemotherapy is the gold standard for treating muscle-invasive bladder cancer. Women subjected to radical cystectomy are frequently postmenopausal, and the median age for bladder cancer diagnosis in women in Sweden is currently 73 yr (Swedish National Bladder Cancer Register). Traditionally, most women treated with radical cystectomy have undergone simultaneous bilateral oophorectomy and hysterosalpingectomy to diminish the risk of later ovarian disease and ovarian bladder cancer recurrence, but also the belief that there is no impact on health or health-related quality of life associated with oophorectomy and the fact that it might be easier surgery to take the ovarian pedicles, rather than sparing the ovaries. However, pelvic organ preservation is considered in some younger women to diminish postoperative functional impairment. Based on recent literature in several areas related to oophorectomy, we question the rationale and arguments for performing oophorectomy in women in conjunction with radical cystectomy for bladder cancer. [Mh] Termos MeSH primário: Cistectomia Neoplasias Ovarianas/cirurgia Ovariectomia Procedimentos Desnecessários Neoplasias da Bexiga Urinária/cirurgia [Mh] Termos MeSH secundário: Adulto Fatores Etários Idoso Tomada de Decisão Clínica Cistectomia/efeitos adversos Feminino Seres Humanos Meia-Idade Neoplasias Ovarianas/secundário Ovariectomia/efeitos adversos Seleção de Pacientes Medição de Risco Fatores de Risco Fatores Sexuais Resultado do Tratamento Neoplasias da Bexiga Urinária/patologia [Pt] Tipo de publicação: JOURNAL ARTICLE [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180305 [Lr] Data última revisão: 180305 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 161025 [St] Status: MEDLINE

5 / 23089

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29348072 [Au] Autor: Liu C; Chen X; Zhi X; Weng W; Li Q; Li X; Zou Y; Su J; Hu HG [Ad] Endereço: Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433, China. [Ti] Título: Structure-based development of an osteoprotegerin-like glycopeptide that blocks RANKL/RANK interactions and reduces ovariectomy-induced bone loss in mice. [So] Source: Eur J Med Chem;145:661-672, 2018 Feb 10. [Is] ISSN: 1768-3254 [Cp] País de publicação: France [La] Idioma: eng [Ab] Resumo: Osteoporosis is a metabolic bone disease characterized by low bone mass and micro-architectural deterioration of bone, for which the underlying mechanism is an imbalance between bone resorption and bone remodeling. The protein-protein interactions between receptor activator of nuclear factor-κB ligand (RANKL), RANK (its receptor), and osteoprotegerin (OPG), are known to mediate the development and activation of osteoclasts in bone remodeling, and are regarded as a pivotal therapeutic target for the treatment of osteoporosis. Herein, we disclose the successful development of a novel glycopeptide (OM-2), the structure of which is based on the key interacting sites of the reported RANKL and OPG crystal structure. OM-2 exhibited potent binding affinity with RANKL and resistance to degradation by protease enzymes. It also blocked RANKL/RANK interactions, and inhibited osteoclastogenesis in vitro. In vivo studies confirmed that OM-2 could effectively reduce bone loss and inhibit osteoclast activation in ovariectomized (OVX) mice at a dosage of 20.0 mg/kg/day. Accordingly, OM-2 is suggested as a therapeutic candidate for postmenopausal osteoporosis (PMOP) and osteoclastogenesis-related diseases like rheumatoid arthritis (RA). More importantly, its identification validates our structure-based strategy for the development of drugs that target the RANKL/RANK/OPG system. [Mh] Termos MeSH primário: Glicopeptídeos/farmacologia Osteoporose/tratamento farmacológico Osteoprotegerina/farmacologia Ovariectomia Ligante RANK/antagonistas & inibidores Receptores Citoplasmáticos e Nucleares/antagonistas & inibidores [Mh] Termos MeSH secundário: Animais Osso e Ossos/efeitos dos fármacos Osso e Ossos/metabolismo Osso e Ossos/patologia Relação Dose-Resposta a Droga Feminino Glicopeptídeos/síntese química Glicopeptídeos/química Masculino Camundongos Camundongos Endogâmicos C57BL Simulação de Acoplamento Molecular Estrutura Molecular Osteoporose/metabolismo Osteoprotegerina/química Ligação Proteica/efeitos dos fármacos Ligante RANK/metabolismo Receptores Citoplasmáticos e Nucleares/metabolismo Relação Estrutura-Atividade [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Glycopeptides); 0 (Osteoprotegerin); 0 (RANK Ligand); 0 (Receptors, Cytoplasmic and Nuclear) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180302 [Lr] Data última revisão: 180302 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180120 [St] Status: MEDLINE

6 / 23089

MEDLINE

seleciona para imprimir Fotocópia

[PMID]: 29424983 [Au] Autor: Gómez-Pue D; Ibarrola-BuenAbad E; Lara-Núñez D; Vázquez-Alvarado AP; Pérez-Quintanilla M [Ti] Título: [Salpingectomy in ovarian cancer prevention: Evidence behind the hypothesis and surgical implications]. [Ti] Título: Salpingectomía como opción de reducción de riesgo de cáncer de ovario.. [So] Source: Ginecol Obstet Mex;84(9):614-9, 2016 Sep. [Is] ISSN: 0300-9041 [Cp] País de publicação: Mexico [La] Idioma: spa [Ab] Resumo: Background: Over the last decade, evidence suggests the fallopian tubes are the origin of most of the high grade ovarian serous carcinomas. This type of carcinoma represents at least 50% of all the cases of epithelial ovarian cancer. Salpingectomy may lower the risk of high grade serous carcinoma. Removing the two fallopian tubes should be considered a strategy for risk reduction in patients who decide tubal sterilization or in patients with hysterectomy for benign disease. There are ongoing protocols that evaluate the ovarian hormonal production impact after prophilactic salpingectomy. In patients with BRCA1 and BRCA2 mutations, salpingo-oophorectomy is recommended usually between 35 to 40 years of age for BRCA 1 and between 40 and 45 years of age for BRCA 2. The oopherectomy done whithin these decades has the consequences and side effects of premature menopause, some physicians have suggested doing a two step procedure: perform a salpingectomy as soon as the patient has decided to have permanent birth control, and doing the ophoorectomy at the onset of menopause. The oncological safety of this approach is still under evaluation and is not recommended outside a protocol. [Mh] Termos MeSH primário: Neoplasias das Tubas Uterinas/prevenção & controle Neoplasias Ovarianas/prevenção & controle Salpingectomia/métodos [Mh] Termos MeSH secundário: Adulto Proteína BRCA1/genética Proteína BRCA2/genética Tubas Uterinas/cirurgia Feminino Seres Humanos Neoplasias Ovarianas/genética Ovariectomia/métodos [Pt] Tipo de publicação: JOURNAL ARTICLE; REVIEW [Nm] Nome de substância: 0 (BRCA1 Protein); 0 (BRCA1 protein, human); 0 (BRCA2 Protein); 0 (BRCA2 protein, human) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180301 [Lr] Data última revisão: 180301 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180210 [St] Status: MEDLINE

7 / 23089

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29441931 [Au] Autor: Li N; Tu Y; Shen Y; Qin Y; Lei C; Liu X [Ti] Título: Calycosin attenuates osteoporosis and regulates the expression of OPG/RANKL in ovariectomized rats MAPK signaling. [So] Source: Pharmazie;71(10):607-612, 2016 Oct 01. [Is] ISSN: 0031-7144 [Cp] País de publicação: Germany [La] Idioma: eng [Ab] Resumo: We aimed at exploring the effect of calycosin (CA) on osteoporosis in ovariectomized (OVX) rats. Sprague-Dawley (SD) rats were divided into five groups: Sham group, OVX group, OVX group treated with estradiol valerate (EV), CAL group treated with 15 mg/kg/d of CA and CAH group treated with 30 mg/kg/d of CA for 12 weeks. Bone mineral density (BMD), histopathology, body weight, parameters in serum and urine were observed. Gene expression and protein level of OPG/RANKL were also studied by real-time PCR and western blot, respectively. We further identified the effect of CA on mitogen-activated protein kinase (MAPK) signaling. In comparison with OVX rats, CAL and CAH significantly increased the BMD by 8.3% and 19.0%. Treatment with CA notably inhibited the excretion of Ca, P and Cr. CAH also significantly increased the level of alkaline phosphatase (ALP) and decreased the level of tartrate-resistant acid phosphatase (TRAP) in serum of OVX rats. CA could improve the trabecular bone area, and increased the trabecular number and the trabecular connection after 12-week. CA also increased the expression of osteoprotegerin (OPG) and decreased the Receptor Activator for Nuclear Factor-κB Ligand (RANKL) mRNA expression compared with the OVX rats. In addition, CA could effectively decrease the phosphorylation of MAPKs induced by ovariectomy. In conclusion, CA had remarkable antiosteoporotic activity and therefore can be a promising candidate for the treatment of postmenopausal osteoporosis. [Mh] Termos MeSH primário: Conservadores da Densidade Óssea/uso terapêutico Isoflavonas/uso terapêutico Proteínas Quinases Ativadas por Mitógeno/efeitos dos fármacos Osteoporose/tratamento farmacológico Osteoprotegerina/genética Ligante RANK/genética Transdução de Sinais/efeitos dos fármacos [Mh] Termos MeSH secundário: Animais Densidade Óssea/efeitos dos fármacos Conservadores da Densidade Óssea/farmacologia Reabsorção Óssea/prevenção & controle Feminino Regulação da Expressão Gênica/efeitos dos fármacos Proteínas de Choque Térmico HSP90/biossíntese Proteínas de Choque Térmico HSP90/genética Isoflavonas/farmacologia Sistema de Sinalização das MAP Quinases/efeitos dos fármacos Osteoporose/genética Osteoprotegerina/biossíntese Ovariectomia Fosforilação Ligante RANK/biossíntese Ratos Ratos Sprague-Dawley [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Bone Density Conservation Agents); 0 (HSP90 Heat-Shock Proteins); 0 (Isoflavones); 0 (Osteoprotegerin); 0 (RANK Ligand); 0 (TRAP1 protein, rat); 0 (Tnfrsf11b protein, rat); 09N3E8P7TA (7,3'-dihydroxy-4'-methoxyisoflavone); EC 2.7.11.24 (Mitogen-Activated Protein Kinases) [Em] Mês de entrada: 1802 [Cu] Atualização por classe: 180227 [Lr] Data última revisão: 180227 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180215 [St] Status: MEDLINE [do] DOI: 10.1691/ph.2016.6627

8 / 23089

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29182397 [Au] Autor: Lecler A; Dunant A; Delaloge S; Wehrer D; Moussa T; Caron O; Balleyguier C [Ad] Endereço: 1 Department of Radiology, Fondation Ophtalmologique Rothschild , Fondation Ophtalmologique Rothschild , Paris , France. [Ti] Título: Breast tissue density change after oophorectomy in BRCA mutation carrier patients using visual and volumetric analysis. [So] Source: Br J Radiol;91(1083):20170163, 2018 Feb. [Is] ISSN: 1748-880X [Cp] País de publicação: England [La] Idioma: eng [Ab] Resumo: OBJECTIVE: BRCA1/2 mutations account for 30-50% of hereditary breast cancers and bilateral oophorectomy is associated with a reduced risk of breast cancer in these patients. Breast density is a well-established breast cancer risk factor and is also associated with increased risk in BRCA carriers. The aim of the study was to evaluate the impact of oophorectomy on mammographic breast density and to assess which method of breast density assessment is more sensitive to change over time. METHODS: Retrospective study of 50 BRCA1/2 patients who underwent bilateral oophorectomy and had at least a baseline and post-surgery mammogram. Mammographic breast density was determined by Volpara and consensus visual assessment by two radiologists. The primary endpoint was change in density between baseline and the first mammogram post-surgery. RESULTS: At baseline, there was a non-significant trend for decreased density with increasing age. Volumetric breast density (VBD) significantly decreased after oophorectomy from a median VBD of 12.5% at baseline to 10.2% post-surgery which was driven by a reduction in fibroglandular volume. There was a higher absolute decrease in VBD in patients aged between 40-50 (p < 0.01). Using Volpara Density Grades (analogous to BI-RADS 4th edition density categories), 84% of females displayed a decrease in density category over the study period compared to only 76% using the radiologists' visual classification (p < 0.001) Conclusion: Oophorectomy is associated with a decrease in breast density and younger patients exhibit a larger absolute decrease. Volpara is more sensitive to identify change over time compared to visual assessment. Advances in knowledge: Oophorectomy is associated with a significant decrease in VBD in patients with BRCA mutations and Volpara Density Grades were more sensitive to identify decreases in density compared to visually assessed BI-RADS categories. Decreases in breast density following oophorectomy surgery in BRCA patients may be one of the mechanisms contributing to the observed decreased breast cancer risk after surgery. However, further studies are needed to investigate the relationship between breast density, oophorectomy and breast cancer risk in BRCA patients. [Mh] Termos MeSH primário: Densidade da Mama Neoplasias da Mama/genética Genes BRCA1 Genes BRCA2 Ovariectomia [Mh] Termos MeSH secundário: Adulto Algoritmos Neoplasias da Mama/diagnóstico por imagem Feminino Seres Humanos Interpretação de Imagem Assistida por Computador Estudos Longitudinais Mamografia Meia-Idade Estudos Retrospectivos [Pt] Tipo de publicação: JOURNAL ARTICLE [Em] Mês de entrada: 1802 [Cu] Atualização por classe: 180226 [Lr] Data última revisão: 180226 [Sb] Subgrupo de revista: AIM; IM [Da] Data de entrada para processamento: 171129 [St] Status: MEDLINE [do] DOI: 10.1259/bjr.20170163

9 / 23089

MEDLINE

seleciona para imprimir Fotocópia

[PMID]: 29368468 [Au] Autor: Dyck E [Ti] Título: A Eugenics Experiment: Sterilization, Hyperactivity and Degeneration. [So] Source: Clio Med;95:260-80, 2016. [Is] ISSN: 0045-7183 [Cp] País de publicação: Netherlands [La] Idioma: eng [Mh] Termos MeSH primário: Eugenia (Ciência)/história Pessoas com Deficiência Mental/história Esterilização Reprodutiva/história [Mh] Termos MeSH secundário: Alberta Castração/história Feminino História do Século XX Seres Humanos Masculino Ovariectomia/história [Pt] Tipo de publicação: HISTORICAL ARTICLE; JOURNAL ARTICLE [Em] Mês de entrada: 1802 [Cu] Atualização por classe: 180215 [Lr] Data última revisão: 180215 [Sb] Subgrupo de revista: IM; QIS [Da] Data de entrada para processamento: 180126 [St] Status: MEDLINE

10 / 23089

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29274780 [Au] Autor: Cui H; Zhao G; Wen J; Tong W [Ad] Endereço: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, Beijing 100005, China. [Ti] Título: Follicle-stimulating hormone promotes the transformation of cholesterol to estrogen in mouse adipose tissue. [So] Source: Biochem Biophys Res Commun;495(3):2331-2337, 2018 01 15. [Is] ISSN: 1090-2104 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: Follicle-stimulating hormone (FSH) levels increase estrogen biosynthesis in obese menopausal women. Ovariectomized mice and 3T3-L1 cells were used to explore estrogen biosynthesis in the decline of ovarian function. After ovariectomy, lipid deposition, and FSH and estrogen levels changed, and feed intake increased significantly. In mouse adipose tissue, FSH was found to have a role in accelerating lipid deposition via the peroxisome proliferators-activated receptor pathway, and in inducing estrogen biosynthesis via the steroid hormone metabolism pathway. Furthermore, FSH bound to the FSH receptor promoted CREB phosphorylation, which was activated by cAMP-PKA. Moreover, pCREB could up-regulate PPARγ and SREBP2 mRNA levels, resulting in an increased transformation of cholesterol to estrogen. Overall, this study shows that FSH induces fat deposition and promotes the transformation of cholesterol to estrogen through CREB activation by cAMP-PKA in mouse adipose tissue. Our findings provide a new understanding of menopause treatment. [Mh] Termos MeSH primário: Tecido Adiposo/metabolismo Colesterol/metabolismo Estrogênios/biossíntese Hormônio Foliculoestimulante/metabolismo Menopausa/metabolismo [Mh] Termos MeSH secundário: Animais Feminino Camundongos Camundongos Endogâmicos C57BL Ovariectomia [Pt] Tipo de publicação: JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T [Nm] Nome de substância: 0 (Estrogens); 9002-68-0 (Follicle Stimulating Hormone); 97C5T2UQ7J (Cholesterol) [Em] Mês de entrada: 1802 [Cu] Atualização por classe: 180214 [Lr] Data última revisão: 180214 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 171225 [St] Status: MEDLINE

---

página 1 de 2309

ir para página

Refinar a pesquisa

Base de dados : MEDLINE

Formulário avançado

		Pesquisar	no campo
1			PalavrasDescritor de assuntoDescritor de assunto primárioLimitesAutorPalavras do títuloPalavras do resumoIdiomaPaís de publicaçãoNome de substânciaNome de pessoa como assuntoRevistaAssunto de RevistaISSNTipo de publicaçãoIdentificador únicoMês de entradaAno de publicaçãoTexto completoAtualização por classeCategoria DeCSCategoria DeCS explodidaCategoria CID-10SubSetsPais de AfiliaçãoAfiliaçãoAfiliação 2
2	and or and not		PalavrasDescritor de assuntoDescritor de assunto primárioLimitesAutorPalavras do títuloPalavras do resumoIdiomaPaís de publicaçãoNome de substânciaNome de pessoa como assuntoRevistaAssunto de RevistaISSNTipo de publicaçãoIdentificador únicoMês de entradaAno de publicaçãoTexto completoAtualização por classeCategoria DeCSCategoria DeCS explodidaCategoria CID-10SubSetsPais de AfiliaçãoAfiliaçãoAfiliação 2
3	and or and not		PalavrasDescritor de assuntoDescritor de assunto primárioLimitesAutorPalavras do títuloPalavras do resumoIdiomaPaís de publicaçãoNome de substânciaNome de pessoa como assuntoRevistaAssunto de RevistaISSNTipo de publicaçãoIdentificador únicoMês de entradaAno de publicaçãoTexto completoAtualização por classeCategoria DeCSCategoria DeCS explodidaCategoria CID-10SubSetsPais de AfiliaçãoAfiliaçãoAfiliação 2

Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde