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1.
Reprod Biol Endocrinol ; 22(1): 27, 2024 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-38443941

RESUMEN

PURPOSE: The introduction of the time-lapse monitoring system (TMS) and the development of predictive algorithms could contribute to the optimal embryos selection for transfer. Therefore, the present study aims at investigating the efficiency of KIDScore and iDAScore systems for blastocyst stage embryos in predicting live birth events. METHODS: The present retrospective study was conducted in a private IVF Unit setting throughout a 10-month period from October 2021 to July 2022, and included the analysis of 429 embryos deriving from 91 IVF/ICSI cycles conducted due to infertility of various etiologies. Embryos incubated at the Embryoscope+ timelapse incubator were analyzed through the established scoring systems: KIDScore and iDAScore®. The main outcome measure was the comparison of the two scoring systems in terms of live birth prediction. Embryos with the higher scores at day 5 (KID5 score/iDA5 score) were transferred or cryopreserved for later use. RESULTS: Embryos with high KID5 and iDA5 scores positively correlated with the probability of successful live birth, with KID5 score yielding a higher efficiency in predicting a successful reproductive outcome compared to a proportionally high iDA5 score. KID5 demonstrated conservative performance in successfully predicting live birth compared to iDA5 score, indicating that an efficient prediction can be either provided by a relatively lower KID5 score or a relatively higher iDA5 score. CONCLUSION: The developed artificial intelligence tools should be implemented in clinical practice in conjunction with the conventional morphological assessment for the conduction of optimized embryo transfer in terms of a successful live birth.


Asunto(s)
Inteligencia Artificial , Nacimiento Vivo , Embarazo , Femenino , Humanos , Estudios Retrospectivos , Embrión de Mamíferos , Embarazo Múltiple
2.
Reprod Sci ; 29(3): 883-895, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34782988

RESUMEN

This retrospective cohort study aimed to explore whether paternal age and semen quality parameters affect the embryological and clinical outcomes of ICSI with oocyte donation. A total of 339 oocyte donation (OD)-ICSI cycles were categorized into four groups according to the semen parameter profiles of the male counterparts: normozoospermia (NS, n = 184), oligozoospermia (OS, n = 41), asthenozoospermia (AS, n = 50), and oligoasthenozoospermia (OAS, n = 64). The effect of age, total sperm count, and progressive motility was separately analyzed for reproductive outcomes and compared between the study groups: fertilization, blastulation, and top-quality embryo rate, biochemical and clinical pregnancy, live birth, and miscarriage. A negative correlation between male age and fertilization rate was observed (rs = - 0.23, p < 0.0001), while male age was a significant factor for biochemical pregnancy (p = 0.0002), clinical pregnancy (p = 0.0017), and live birth (p = 0.0038). Reduced total sperm count and lowered progressive motility led to poorer fertilization rates (rs = 0.19 and 0.35, respectively, p < 0.0001) and affected embryo quality (rs = 0.13, p = 0.02, and rs = 0.22, p < 0.0001, respectively). OD-ICSI cycles with asthenozoospermia had significantly lowered success rates in biochemical pregnancy, clinical pregnancy, and live birth (p < 0.05). Our study demonstrated that both advanced male age and reduced progressive motility of spermatozoa exert a significant negative influence on the outcome of assisted reproduction, even in controlled procedures with gamete selection and optimization such as in OD-ICSI. Improvement in treatment strategies and male fertility evaluation requires incorporation of such evidence to obtain better prognosis towards personalized management.


Asunto(s)
Donación de Oocito , Inyecciones de Esperma Intracitoplasmáticas , Motilidad Espermática , Adulto , Factores de Edad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Embarazo , Índice de Embarazo , Estudios Retrospectivos
3.
In Vivo ; 34(5): 2233-2248, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32871746

RESUMEN

BACKGROUND/AIM: To date few cases of smooth muscle-derived tumors of the adrenal gland have been reported and their treatment remains a medical challenge. The aim of this manuscript was to systematically review the literature and present the tumor characteristics and their management in order to provide a standardized approach to their diagnosis and management. MATERIALS AND METHODS: We searched five databases (PubMed, Scopus, Elsevier, ResearchGate, Google scholar) for relevant articles published until March 2020. RESULTS: Twenty-two cases of adrenal leiomyoma, four cases of adrenal smooth muscle tumor and forty-five cases of adrenal leiomyosarcoma were included. CONCLUSION: We present the demographic, clinical, radiological, pathological and oncological characteristics and prognosis of tumors of the adrenal gland arising from smooth muscle cells, as well as describe the common clinical investigations and therapeutic modalities that have been reported as part of their management.


Asunto(s)
Neoplasias de las Glándulas Suprarrenales , Leiomioma , Leiomiosarcoma , Neoplasias de las Glándulas Suprarrenales/diagnóstico , Neoplasias de las Glándulas Suprarrenales/terapia , Glándulas Suprarrenales , Humanos , Leiomioma/diagnóstico , Leiomiosarcoma/diagnóstico , Leiomiosarcoma/terapia , Pronóstico
4.
Mol Clin Oncol ; 12(4): 317-320, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32190312

RESUMEN

Adrenal leiomyosarcomas are rare mesenchymal tumors of the suprarenal region that are usually diagnosed after they have reached a large size. We report the case of a 62-year-old male with an incidentally found left adrenal mass. Magnetic resonance imaging of the retroperitoneal space showed a heterogeneously enhanced mass, measuring 10x8.2 cm, with characteristics suspicious of malignancy. The patient underwent left radical adrenalectomy after the hormonal evaluation of the tumor due to the high probability of adrenocortical carcinoma. However, microscopic examination of the tumor showed a spindle cell sarcoma. Immunohistochemically the neoplastic cells were found positive for desmin and smooth muscle actin and the diagnosis of a well differentiated adrenal leiomyosarcoma was established. During follow-up the patient presented an aggressive course as he developed bone, liver and pulmonary metastases early postoperatively, which were treated with radiation therapy and chemotherapy. The patient has progressive metastatic disease while on chemotherapy 31 months after surgery.

5.
Behav Sci (Basel) ; 10(2)2020 Feb 05.
Artículo en Inglés | MEDLINE | ID: mdl-32033259

RESUMEN

Engaging each student in learning comprises a continuous challenge and concern for the contemporary teacher. Educational research confirms the alarming increase of the disengaged students, relating student disaffection to adverse effects on students' academic development. In the present research through one-on-one, semi-structured interviews, we investigate 80 Greek in-service kindergarten teachers' opinions with regards to the significance of engaging the disengaged students in learning activities in preschool environments. The interviews based on Creswell's (2009) interview model, incorporate open-ended and close-ended questions that offer a well-rounded view of the subject. Qualitative and quantitative data analysis of teachers' opinions show that engaging each disengaged preschooler has multiple benefits on students' academic development, class climate, and cohesion, and teacher's self-efficacy, as well. Specifically, teachers' engaging actions offer students the opportunity to develop their abilities, self-efficacy, and sense of belonging. The interviewees also recognise that increased student engagement levels decisively affect teachers-students' interactions, offering at the same time clear feedback to the teacher.

6.
Behav Sci (Basel) ; 9(12)2019 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-31771113

RESUMEN

Internationally, a great number of researchers have pointed out the significance of school-family relationship in the process of children's transition to primary schools. However, only recently has it been a subject of research in Greece. The purpose of this particular research, which has a sample of 1602 pre-primary and primary school teachers, is to investigate teachers' viewpoints on the role of parents in the process of their children's transition to primary school. Data has been collected through the use of questionnaires. Statistical analysis has shown that the overwhelming majority of teachers consider cooperation with parents as necessary. They indicate that the most important factors for successful transition are parents' level of trust in teachers, their views on schools and learning, and their support for the new situation their child experiences. As far as the most appropriate practices are concerned, almost all teachers mention updating parents at the beginning of the school year, while many suggest that parents and children visit primary schools and that common meetings of both kindergarten and primary school teachers with parents take place before school begins. It therefore seems that teachers acknowledge the role of parents in the process of transition and suggest appropriate practices for their participation.

7.
J Gynecol Obstet Hum Reprod ; 48(5): 341-345, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30794953

RESUMEN

OBJECTIVE: to evaluate the effect of the addition of low dose human chorionic gonadotropin (hCG) to human menopausal gonadotropin (HMG) throughout the early follicular phase in controlled ovarian stimulation (COS) conducted with two difference regimens. Gonadotropin-releasing hormone (GnRH) antagonist and short GnRH-agonist protocol were applied in two in vitro fertilization (IVF) clinics. METHODS: Clinical study conducted during the period 2014-2016 in two IVF clinics in a cohort of 240 women. In the first group 1 (124 women), a GnRH antagonist protocol with HMG and addition of low dose (100IU/day) h CG was applied. The other group 2 consisted of 116 women who underwent a short GnRH- agonist protocol with HMG and addition of low dose (100IU/day) h CG. RESULTS: Multiple logistic regression analysis was performed. The group 2 found to be associated with greater number of follicles and oocytes. The pregnancy rates were 12.1% and 26.7% in group 1 and group 2, respectively (p=0.004). For patients over 40 years, the number of follicles and oocytes retrieved were significant higher in group 2.The pregnancy rate in group 2 was higher than in group 1 (21, 6% vs 5%, p=0.017). CONCLUSIONS: Advanced age women are likely to achievepregnancy using the GnRH Short than GnRH antagonist, when HMG/hCG is used, while HMG-hCG gonadotropins have the same potentialas Recombinant follicle stimulating hormone (rFSH)-hCG used in GnRH short protocol.


Asunto(s)
Gonadotropina Coriónica/administración & dosificación , Fertilización In Vitro , Índice de Embarazo , Adulto , Buserelina/administración & dosificación , Femenino , Fármacos para la Fertilidad Femenina/administración & dosificación , Fase Folicular , Hormona Liberadora de Gonadotropina/administración & dosificación , Hormona Liberadora de Gonadotropina/agonistas , Hormona Liberadora de Gonadotropina/análogos & derivados , Hormona Liberadora de Gonadotropina/antagonistas & inhibidores , Humanos , Menotropinas/administración & dosificación , Oocitos , Inducción de la Ovulación , Embarazo
8.
Prostaglandins Other Lipid Mediat ; 85(3-4): 125-33, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18248752

RESUMEN

Platelet Activating Factor (PAF) is a bioactive phospholipid, which exhibits a variety of biological activities and plays a significant role in all aspects of reproduction. In this work, a single intravenous injection of various concentrations of PAF shortly after Human Chorionic Gonadotropin (HCG) administration as well as 24 and 48 h before HCG administration was studied in NZB x NZW F1 hybrid mice. Optimum results were observed when PAF was injected just after the administration of HCG. In this protocol, the concentrations of PAF exhibited bell-shaped response to every stage of development. Any concentration of PAF between 5.5 x 10(-11) and 5.5 x 10(-15)g/g b.w., caused an improved ovulation rate, an increased fertilization rate, an increased rate of cell cycle and an enhanced hatching blastocyst rate (P<0.05 for all stages). Injection of lyso-PAF had no effect in any stage. Our data show that the effect of PAF on early stages of embryo development in vitro is dependent on its way of administration, on the concentrations used as well as on the time PAF is injected.


Asunto(s)
Desarrollo Embrionario/efectos de los fármacos , Fertilización/efectos de los fármacos , Ovulación/efectos de los fármacos , Factor de Activación Plaquetaria/farmacología , Animales , Hibridación Genética , Infusiones Intravenosas , Inyecciones Intravenosas , Masculino , Ratones , Ratones Endogámicos NZB , Factor de Activación Plaquetaria/administración & dosificación , Factor de Activación Plaquetaria/análogos & derivados , Superovulación
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