Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 7 de 7
Filtrar
1.
Hum Reprod ; 34(7): 1235-1248, 2019 07 08.
Artículo en Inglés | MEDLINE | ID: mdl-31242506

RESUMEN

STUDY QUESTION: What is the effect of two guided self-administered interventions on psychological distress in women undergoing IVF or ICSI? SUMMARY ANSWER: A brief mindfulness intervention significantly reduced depression and improved sleep quality, while the gratitude journal intervention showed no significant effect on any outcome variables. WHAT IS KNOWN ALREADY: Mindfulness and gratitude journal interventions have been found to be beneficial in reducing negative affect and improving well-being. However, there are very few mental health professionals who implement such interventions in low- and middle-income countries. Therefore, two guided self-administered interventions for women with infertility were designed to help them cope with their psychological distress. STUDY DESIGN, SIZE, DURATION: A three-armed, randomized controlled trial was designed to evaluate the mindfulness and gratitude journal interventions for women undergoing IVF/ICSI. Between May 2016 and November 2017, at the reproductive center in a public hospital, 234 women were randomly assigned to the brief mindfulness group (BMG, n = 78), gratitude journal group (GJG, n = 78) or control group (CG, n = 78). The inclusion criteria were being a woman undergoing her first cycle of IVF, having at least junior middle school education and having no biological or adopted children. PARTICIPANTS/MATERIALS, SETTING, METHODS: Female infertility patients (n = 346) were approached, and 112 did not meet the inclusion criteria. All three randomized groups completed questionnaires on the day of down-regulation (T1), the day before embryo(s) transfer (T2), and 3 days before the pregnancy test (T3). The BMG completed four sessions and listened to a 20-minute audio daily, including guided mindfulness breathing and body scan. The GJG completed four sessions and wrote three gratitude journals daily. The CG received routine care. A generalized estimating equation was used in an intention-to-treat analysis. The primary outcome was depression. Secondary outcomes were anxiety, sleep quality, infertility-related stress, mindfulness and gratitude. MAIN RESULTS AND THE ROLE OF CHANCE: Participants of the BMG showed decreased depression (mean difference (MD) = -1.69, [-3.01, -0.37], d = 0.44) and improved sleep quality (MD = -1.24, [-1.95, -0.39], d = 0.43) compared to the CG, but the effect was not significant for anxiety, Fertility Problem Inventory totals, mindfulness, gratitude scores or pregnancy rates. The BMG showed a significant reduction in depression and improvement in sleep quality between T1 and T2, a continuous significant reduction between T1 and T3 and no reduction between T2 and T3. There were no significant effects on any of the variables for the GJG. LIMITATIONS, REASONS FOR CAUTION: The inclusion criteria may result in bias because some participants with low education were excluded and only women with infertility were included. A low compliance rate occurred in the gratitude journals group. Moreover, men were not included in this study. Further research should consider including spouses of the target population. WIDER IMPLICATIONS OF THE FINDINGS: The brief mindfulness intervention was beneficial in decreasing depression and improving sleep quality. Implementation of guided self-administered mindfulness could make the psychological counseling service more accessible for patients with infertility in resource-poor settings. The efficiency and feasibility of the gratitude journal intervention needs to be investigated further. STUDY FUNDING/COMPETING INTEREST(S): This study was funded by the National Social Science Foundation (17BSH054). The authors have no conflicts of interest. TRIAL REGISTRATION NUMBER: ChiCTR-IOR-16008452. TRIAL REGISTRATION DATE: 9 May 2016. DATE OF FIRST PATIENT'S ENROLMENT: 15 May 2016.


Asunto(s)
Ansiedad/terapia , Depresión/terapia , Infertilidad Femenina/psicología , Atención Plena , Distrés Psicológico , Adulto , Ansiedad/etiología , Depresión/etiología , Femenino , Humanos , Aceptación de la Atención de Salud , Embarazo , Índice de Embarazo , Sueño
2.
Toxics ; 12(6)2024 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-38922092

RESUMEN

Fly ash, a type of solid waste generated in power plants, can be utilized as a catalyst carrier to enhance its value-added potential. Common methods often involve using a large amount of alkali for preprocessing, resulting in stable quartz and mullite forming silicate dissolution. This leads to an increased specific surface area and pore structure. In this study, we produced a catalyst composed of MnOx/NiOOH supported on fly ash by directly employing nickel hydroxide and potassium permanganate to generate metal active sites over the fly ash surface while simultaneously creating a larger specific surface area and pore structure. The ozone catalytic oxidation performance of this catalyst was evaluated using sodium acetate as the target organic matter. The experimental results demonstrated that an optimal removal efficiency of 57.5% for sodium acetate was achieved, surpassing even that of MnOx/NiOOH supported catalyst by using γ-Al2O3. After loading of MnOx/NiOOH, an oxygen vacancy is formed on the surface of fly ash, which plays an indirect oxidation effect on sodium acetate due to the transformation of ozone to •O2- and •OH over this oxygen vacancy. The reaction process parameters, including varying concentrations of ozone, sodium acetate, and catalyst dosage, as well as pH value and the quantitative analysis of formed free radicals, were examined in detail. This work demonstrated that fly ash could be used as a viable catalytic material for wastewater treatment and provided a new solution to the added value of fly ash.

3.
Acta Crystallogr Sect E Struct Rep Online ; 66(Pt 5): m520-1, 2010 Apr 14.
Artículo en Inglés | MEDLINE | ID: mdl-21579016

RESUMEN

The ligand N-(2-hydr-oxy-3-methoxy-benzyl-idene)glycylglycine (H(3)L), a Schiff base derived from glycylglycine and 3-methoxy-salicylaldehyde, was used in the synthesis of a new organic-inorganic coordination complex, [Mn(H(2)O)(6)][Cu(C(12)H(11)N(2)O(5))](2)·6H(2)O. The Mn(II) atom is located on an inversion center and is coordinated to six water mol-ecules in a slightly distorted octa-hedral geometry. The Cu(II) atom is chelated by the tetra-dentate Schiff base ligand in a distorted CuN(2)O(2) square-planar coordination. In the crystal structure, the complex [Mn(H(2)O)(6)](2+) cations and the [CuL](-) anions are arranged in columns parallel to the a axis and are held together by O-H⋯O hydrogen bonding. Additional hydrogen bonds of the same type further link the columns into a three-dimensional network.

4.
Acta Crystallogr Sect E Struct Rep Online ; 66(Pt 5): m579-80, 2010 Apr 28.
Artículo en Inglés | MEDLINE | ID: mdl-21579059

RESUMEN

The Cu(II) atom of the title complex, [Cu(C(16)H(12)ClNO(3))(C(3)H(4)N(2))]·H(2)O, has a distorted square-planar coordination geometry formed by a tridentate Schiff base dianion and an imidazole ligand. The imidazole is nearly coplanar with the coordination plane, the dihedral angle between the planes being 3.73 (12)°. In the Schiff base ligand, the two benzene rings are oriented at a dihedral angle of 75.87 (12)°. O-H⋯O and N-H⋯O hydrogen bonding is present in the crystal structure. One H atom of the uncoordinated water mol-ecule is disordered equally over two sites.

5.
Acta Crystallogr Sect E Struct Rep Online ; 66(Pt 4): m455, 2010 Mar 27.
Artículo en Inglés | MEDLINE | ID: mdl-21580541

RESUMEN

In the title complex, [Cu(C(9)H(6)N(2)O(5))(H(2)O)(2)]·2H(2)O, the Cu(II) atom has a square-pyramidal coordination environment with a tridentate N-(5-nitro-2-oxidobenzyl-idene)glycinate Schiff base ligand and a water mol-ecule in the basal plane. The apical site is occupied by an O atom from another coordinated water mol-ecule. The crystal structure is stabilized by O-H⋯O hydrogen bonds, building a two-dimensional network parallel to (100).

6.
Chem Commun (Camb) ; 51(54): 10847-9, 2015 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-26051325

RESUMEN

A novel non-light-driven catalysis by the delaminated two dimensional titanate nanosheets (TNSs) has been explored for degradation of organic dyes with hydrogen peroxide (H2O2). This catalyst can efficiently remove dyes at high concentration and over a wide pH range, as well as with a long cycle number and superior universality.

7.
Mol Med Rep ; 12(2): 2529-38, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25954833

RESUMEN

Premature ovarian failure (POF) is an ovarian defect characterized by the premature depletion of ovarian follicles in individuals <40 years old, and is a major cause of infertility in females. Genetic factors are considered to be responsible for the development of POF, however, the exact pathogenesis remains to be elucidated in the majority of cases. In the present study, the single nucleotide polymorphisms (SNPs) of growth differentiation factor 9 (GDF9), bone morphogenetic protein 15 (BMP15), inhibin ßB (INHBB) and follicle stimulating hormone receptor (FSHR) genes were investigated, and their association with POF in a Chinese Hui population of the Ningxia Hui Autonomous Region in western China was evaluated. Peripheral blood samples were collected from 63 patients diagnosed with POF (POF group) and 58 normal control individuals (control group), from which the genomic DNA was isolated. The GDF9, BMP15, INHBB and FSHR genes were amplified using polymerase chain reaction assays, and their SNPs were determined by sequencing. In the four SNPs identified across the GDF9 loci, D57Y (169G>T), rs1049127 (546G>A), rs254286 (447C>T) and rs254285 (969C>G), the frequencies of the 546G>A genotype and allele A were significantly higher in the POF group, compared with the normal control group (34.92, vs. 6.90%; P<0.05 and 19.05, vs. 3.23%; P<0.05, respectively), while no significant differences were observed in the occurrence of the c.447C>T and c.969C>G mutations between the two groups (60.32, vs. 50% and 50.79, vs. 55.17%, respectively). The c.169G>T mutation within the GDF9 gene was only detected in two patients with POF, and the mutation did not occur in the normal control group. A total of three SNPs were detected within the BMP15 gene, including rs3810682 (-9C>G), rs79377927 (788_789insTCT) and rs17003221 (852C>T), and no significant differences were observed in the frequencies of the -9C>G and 852C>T genotypes between the POF and control groups (7.94, vs. 6.90% and 4.76, vs. 3.45%, respectively). The 788_789insTCT genotype was detected in only two patients with POF. A novel mutation, c.1095C>A, was identified in exon 2 of the INHBB gene, however, no significant difference was found in the occurrence of the mutation between the two groups (30.16, vs. 22.41%; P>0.05). The rs6165 (919G>A) and rs6166 (2039G>A) SNPs were detected in exon 10 of the FSHR gene; however, no significant difference was observed in the genotype frequencies between the two groups (92.06, vs. 91.38% and 96.83, vs. 93.10%, respectively). These results demonstrated that GDF9 c.169G>T (D57Y), c.546G>A (rs1049127), and BMP15 rs79377927 (788_789insTCT) were associated with POF in the Chinese Hui population.


Asunto(s)
Proteína Morfogenética Ósea 15/genética , Factor 9 de Diferenciación de Crecimiento/genética , Polimorfismo de Nucleótido Simple , Insuficiencia Ovárica Primaria/genética , Adulto , Alelos , Pueblo Asiatico , Secuencia de Bases , Femenino , Expresión Génica , Frecuencia de los Genes , Genotipo , Humanos , Subunidades beta de Inhibinas/genética , Datos de Secuencia Molecular , Ovario/metabolismo , Ovario/patología , Insuficiencia Ovárica Primaria/etnología , Insuficiencia Ovárica Primaria/patología , Receptores de HFE/genética
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA