Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
1.
JAMA ; 317(24): 2502-2514, 2017 06 27.
Artigo em Inglês | MEDLINE | ID: mdl-28655015

RESUMO

Importance: Acupuncture is used to induce ovulation in some women with polycystic ovary syndrome, without supporting clinical evidence. Objective: To assess whether active acupuncture, either alone or combined with clomiphene, increases the likelihood of live births among women with polycystic ovary syndrome. Design, Setting, and Participants: A double-blind (clomiphene vs placebo), single-blind (active vs control acupuncture) factorial trial was conducted at 21 sites (27 hospitals) in mainland China between July 6, 2012, and November 18, 2014, with 10 months of pregnancy follow-up until October 7, 2015. Chinese women with polycystic ovary syndrome were randomized in a 1:1:1:1 ratio to 4 groups. Interventions: Active or control acupuncture administered twice a week for 30 minutes per treatment and clomiphene or placebo administered for 5 days per cycle, for up to 4 cycles. The active acupuncture group received deep needle insertion with combined manual and low-frequency electrical stimulation; the control acupuncture group received superficial needle insertion, no manual stimulation, and mock electricity. Main Outcomes and Measures: The primary outcome was live birth. Secondary outcomes included adverse events. Results: Among the 1000 randomized women (mean [SD] age, 27.9 [3.3] years; mean [SD] body mass index, 24.2 [4.3]), 250 were randomized to each group; a total of 926 women (92.6%) completed the trial. Live births occurred in 69 of 235 women (29.4%) in the active acupuncture plus clomiphene group, 66 of 236 (28.0%) in the control acupuncture plus clomiphene group, 31 of 223 (13.9%) in the active acupuncture plus placebo group, and 39 of 232 (16.8%) in the control acupuncture plus placebo group. There was no significant interaction between active acupuncture and clomiphene (P = .39), so main effects were evaluated. The live birth rate was significantly higher in the women treated with clomiphene than with placebo (135 of 471 [28.7%] vs 70 of 455 [15.4%], respectively; difference, 13.3%; 95% CI, 8.0% to 18.5%) and not significantly different between women treated with active vs control acupuncture (100 of 458 [21.8%] vs 105 of 468 [22.4%], respectively; difference, -0.6%; 95% CI, -5.9% to 4.7%). Diarrhea and bruising were more common in patients receiving active acupuncture than control acupuncture (diarrhea: 25 of 500 [5.0%] vs 8 of 500 [1.6%], respectively; difference, 3.4%; 95% CI, 1.2% to 5.6%; bruising: 37 of 500 [7.4%] vs 9 of 500 [1.8%], respectively; difference, 5.6%; 95% CI, 3.0% to 8.2%). Conclusions and Relevance: Among Chinese women with polycystic ovary syndrome, the use of acupuncture with or without clomiphene, compared with control acupuncture and placebo, did not increase live births. This finding does not support acupuncture as an infertility treatment in such women. Trial Registration: clinicaltrials.gov Identifier: NCT01573858.


Assuntos
Terapia por Acupuntura , Clomifeno/uso terapêutico , Fármacos para a Fertilidade Feminina/uso terapêutico , Infertilidade Feminina/terapia , Nascido Vivo/epidemiologia , Síndrome do Ovário Policístico/terapia , Terapia por Acupuntura/efeitos adversos , Terapia por Acupuntura/estatística & dados numéricos , Adulto , Índice de Massa Corporal , Clomifeno/efeitos adversos , Terapia Combinada/métodos , Contusões/etiologia , Diarreia/etiologia , Método Duplo-Cego , Esquema de Medicação , Feminino , Fármacos para a Fertilidade Feminina/efeitos adversos , Humanos , Infertilidade Feminina/tratamento farmacológico , Infertilidade Feminina/etiologia , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/tratamento farmacológico , Gravidez , Método Simples-Cego , Fatores de Tempo
2.
Prep Biochem Biotechnol ; 45(8): 754-68, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25126886

RESUMO

A novel fungal strain, Aspergillus ficuum Gim 3.6, was evaluated for its tannase-producing capability in a wheat bran-based solid-state fermentation. Thin-layer chromatography (TLC) analysis revealed that the strain was able to degrade tannic acid to gallic acid and pyrogallol during the fermentation process. Quantitation of enzyme activity demonstrated that this strain was capable of producing a relatively high yield of extracellular tannase. Single-factor optimization of process parameters resulted in high yield of tannase after 60 hr of incubation at a pH of 5.0 at 30°C, 1 mL of inoculum size, and 1:1 solid-liquid ratio in the presence of 2.0% (w/v) tannic acid as inducer. The potential of aqueous two-phase extraction (ATPE) for the purification of tannase was investigated. Influence of various parameters such as phase-forming salt, molecular weight of polyethylene glycol (PEG), pH, and stability ratio on tannase partition and purification was studied. In all the systems, the target enzyme was observed to preferentially partition to the PEG-rich top phase, and the best result of purification (2.74-fold) with an enzyme activity recovery of 77.17% was obtained in the system containing 17% (w/w) sodium citrate and 18.18% (w/w) PEG1000, at pH 7.0.


Assuntos
Aspergillus/enzimologia , Hidrolases de Éster Carboxílico/química , Hidrolases de Éster Carboxílico/isolamento & purificação , Proteínas Fúngicas/química , Proteínas Fúngicas/isolamento & purificação , Hidrolases de Éster Carboxílico/biossíntese , Proteínas Fúngicas/biossíntese , Concentração de Íons de Hidrogênio
3.
Beijing Da Xue Xue Bao Yi Xue Ban ; 37(5): 476-9, 2005 Oct 18.
Artigo em Zh | MEDLINE | ID: mdl-16224516

RESUMO

OBJECTIVE: To detect the novel apoptosis-related protein PDCD5 expression in granulosa cells of polysystic ovary syndrome (PCOS) and normal ovary, and explore the pathogenesis of PCOS. METHODS: The granulosa cells were collected from 30 cases of PCOS and normal ovary in IVF-ET. Expression of PDCD5 was detected by flow cytometry; immunofluorescence and immunohistochemistry. Cell apoptosis was detected by Propidium Iodide (PI) staining. RESULTS: The number of hypodiploidy cells associated with apoptosis in granulosa cells of PCOS was greater than that of the normal control. PDCD5 protein expression in PCOS granulosa cells was significantly higher than that in normal ovary (P<0.05). PDCD5-positive cells were mainly observed in cytoplasm. There was no significant difference between the two groups in terms of age, basal serum FSH concentration, number of ampules of FSH administered. CONCLUSION: Our data suggest that PDCD5 is an important apoptosis regulating factor in granulosa cells of PCOS and normal ovary, which might be involved in the pathogenesis of PCOS.


Assuntos
Proteínas Reguladoras de Apoptose/biossíntese , Células da Granulosa/metabolismo , Proteínas de Neoplasias/biossíntese , Síndrome do Ovário Policístico/metabolismo , Adulto , Feminino , Fertilização in vitro , Citometria de Fluxo , Imunofluorescência , Humanos , Imuno-Histoquímica , Síndrome do Ovário Policístico/patologia
4.
Beijing Da Xue Xue Bao Yi Xue Ban ; 36(6): 600-4, 2004 Dec.
Artigo em Zh | MEDLINE | ID: mdl-15605090

RESUMO

OBJECTIVE: To explore the gene differential expression pattern of polycystic ovary syndrome. METHODS: We carried out microarray analysis to define the gene networks by the PCOS granulosa cells in order to identify differentially expressed genes in PCOS patients. These granulosa cells of five PCOS cases and five control cases which were derived during oocyte retrieval from women undergoing IVF. RESULTS: As compared with control human ovarian granulosa cells, 46 genes were screened out, 25 genes were up-regulated, and 21 genes were down-regulated in PCOS. These differentially expressed genes were involved in various biologic functions, such as regulation of fatty acid metabolism, cell-cell signal transduction, immune and inflammatory response, reflecting the complexity of clinical manifestations of PCOS. CONCLUSION: Microarray analysis technology is an effective method to identify novel PCOS associated candidate genes.


Assuntos
Perfilação da Expressão Gênica , Síndrome do Ovário Policístico/genética , Adulto , Transferência Embrionária , Feminino , Fertilização in vitro , Células da Granulosa/metabolismo , Humanos , Análise em Microsséries/métodos , Oócitos/metabolismo , Reprodutibilidade dos Testes
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA