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2.
Hum Reprod ; 29(10): 2333-8, 2014 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-24963163

RESUMO

STUDY QUESTION: Do overweight women with polycystic ovary syndrome (PCOS) have a higher risk of perinatal complications than normal weight women with PCOS? SUMMARY ANSWER: Overweight women with PCOS with an ongoing singleton pregnancy have an increased risk of preterm birth as well as an increased risk of giving birth to a baby with a higher birthweight than normal weight women with PCOS. WHAT IS KNOWN ALREADY: There is evidence that overweight (BMI > 25 kg/m²) has a negative influence on the prevalence of gestational diabetes mellitus and fetal macrosomia in women with PCOS. STUDY DESIGN, SIZE, DURATION: We set up a retrospective comparative cohort study of 93 overweight (BMI ≥ 25 kg/m²) and 107 normal weight (BMI < 25 kg/m²) women with PCOS who were scheduled for fertility treatment between January 2000 and December 2009 and achieved a pregnancy as a result of a treatment cycle, or spontaneously before or between treatment cycles. PARTICIPANTS/MATERIALS, SETTING, METHODS: All data (patient characteristics, medical information, pregnancy, delivery and neonatal outcome) were retrieved from patient medical files. All pregnancy, delivery and neonatal outcome parameters were adjusted for age and pre-pregnancy smoking behaviour. The neonatal outcome parameters were additionally adjusted for gestational age. MAIN RESULTS AND THE ROLE OF CHANCE: The median BMI in the overweight and normal weight women was, respectively, 30.8 kg/m² [interquartile quartile range (IQR) 5.8] and 20.9 kg/m² (IQR 2.3) (P < 0.001). Baseline characteristics did not differ between groups, except for free testosterone and fasting insulin levels, which were higher, and sex hormone-binding globulin, which was lower, in overweight versus normal weight women (all P < 0.001). The time-to-pregnancy was significantly higher in the overweight group (P = 0.01). Multivariate analyses of the ongoing singleton pregnancies showed significantly more preterm births in overweight (10/61) versus normal weight (2/71) women [adjusted odds ratio 0.1, 95% confidence interval (CI) 0-0.6, P = 0.01]. The mean birthweight of newborns was significantly higher in overweight (3386 ± 663 g) than in normal weight (3251 ± 528 g) women (adjusted mean difference 259.4, 95% CI 83.4-435.4, P = 0.004). LIMITATIONS, REASON FOR CAUTION: Our results only represent the pregnancy, delivery and neonatal outcome of ongoing singleton pregnancies. The rather small sample size and observational nature of the study are further limitations. WIDER IMPLICATIONS OF THE FINDINGS: Our results suggest the importance of pre-pregnancy weight loss in overweight women with PCOS in order to reduce the risk of adverse perinatal outcomes. STUDY FUNDING/COMPETING INTERESTS: Veerle De Frène is holder of a Special PhD Fellowship by the Flemish Foundation for Scientific Research (FWO-Vlaanderen). Petra De Sutter is holder of a fundamental clinical research mandate by the Flemish Foundation for Scientific Research (FWO-Vlaanderen). There are no competing interests.


Assuntos
Peso ao Nascer , Sobrepeso/complicações , Síndrome do Ovário Policístico/complicações , Resultado da Gravidez , Adulto , Índice de Massa Corporal , Peso Corporal , Feminino , Humanos , Recém-Nascido , Gravidez , Nascimento Prematuro , Estudos Retrospectivos , Tempo para Engravidar
3.
Hum Reprod ; 27(7): 1977-84, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22493027

RESUMO

BACKGROUND: Despite the success of ICSI, total fertilization failure (TFF) still occurs in 1-3% of all ICSI cycles. ICSI followed by assisted oocyte activation (ICSI-AOA) can restore fertilization, most efficiently in cases of sperm-related fertilization deficiency. The indication for ICSI-AOA is less obvious when the capacity of the sperm to activate oocytes is considered normal, as proved by a heterologous ICSI model, such as the mouse oocyte activation test (MOAT). In this study, we verified whether ICSI-AOA is beneficial for patients in whom an oocyte-related activation deficiency is suspected. METHODS: A prospective study was conducted including patients presenting with a history of TFF or low fertilization (LF) following conventional ICSI in our centre (in-house cases, n= 2) or elsewhere (out-house cases, n= 12). In all cases a sperm deficiency was refuted by the MOAT. In a next treatment cycle, ICSI-AOA was performed on half of the sibling metaphase II oocytes and conventional ICSI on the rest ('split ICSI-AOA cycle'). The main outcome parameters were fertilization, pregnancy and live birth rates. RESULTS: Overall, ICSI-AOA was able to improve fertilization rates in couples with a suspected oocyte-related fertilization problem, with a mean fertilization rate of 74.2% following ICSI-AOA compared with 43.5% following conventional ICSI (P< 0.001). Cumulative pregnancy rate and live birth rate per cycle were 35.7 and 14.3%, respectively. Considering the out-house patients only, fertilization rates with ICSI-AOA were higher in couples with previous TFF than with conventional ICSI (P< 0.001). Interestingly, for out-house patients who had experienced low, but not zero, fertilization elsewhere, ICSI-AOA could not enhance the fertilization rate. For the two in-house patients, both suffering from previous LF following conventional ICSI, the ICSI-AOA procedure enhanced the mean fertilization rate (25 versus 75%, respectively). CONCLUSIONS: For patients with a suspected oocyte-related activation deficiency, as diagnosed by a heterologuous ICSI model, the indication for ICSI-AOA still remains debatable. Our data show that ICSI-AOA is very efficient in patients with a suspected oocyte-related activation deficiency and previous TFF after conventional ICSI. In contrast, when there was a history of LF in another centre, one should be careful and test the efficiency of ICSI-AOA on half of the sibling oocytes, because ICSI-AOA is not always beneficial for patients with previous LF and a suspected oocyte-related activation deficiency. For these patients, a split ICSI-AOA cycle using sibling oocytes can help to distinguish between a molecular oocyte-related activation deficiency and a previous technical or other biological failure. Moreover, this split ICSI-AOA strategy enables us to set the appropriate strategy for future treatment cycles. Further research with larger groups of patients is now required.


Assuntos
Fertilização in vitro/métodos , Oócitos/citologia , Técnicas de Reprodução Assistida , Injeções de Esperma Intracitoplásmicas/métodos , Adulto , Animais , Coeficiente de Natalidade , Transferência Embrionária , Feminino , Fertilização , Humanos , Ionóforos/farmacologia , Masculino , Camundongos , Gravidez , Taxa de Gravidez , Estudos Prospectivos , Sêmen/metabolismo
4.
Hum Reprod ; 26(4): 861-72, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21247922

RESUMO

OBJECTIVE Cryopreservation of supernumerary embryos resulting from IVF treatment offers extra chances to conceive. The objective of this study is to describe patients' decisions to continue or discontinue storage of their embryos after a minimum storage period of 2 years. METHODS Female patients who had embryos stored at the Infertility Centre of the Ghent University Hospital (Belgium) were sent a mail questionnaire to be completed anonymously. RESULTS The questionnaire had a response rate of 79% (326/412). After an embryo storage period of at least 2 years, 40% of the couples who were still together wished to continue storage of their embryos. Half of these had no concrete plans for a transfer and wanted to postpone the decision or keep all options open. For those who decided to discontinue storage (60%), the main reason was the completion of their families. Despite the fact that the patients' child wish was the main factor in their storage decision, two groups of patients with distinct profiles made decisions that were inconsistent with their child wish: those who wanted to continue storage while not wanting a(nother) child (7% of those with no child wish), and those who wanted a(nother) child but decided to discontinue storage (25% of those with a child wish). Overall, these patients more often expressed emotional difficulties regarding this decision. CONCLUSIONS This study demonstrates the importance of gaining more insight into patients' embryo storage decisions (along with their embryo disposition decisions) and into the emotional factors playing a role in patients' decision-making.


Assuntos
Criopreservação/métodos , Destinação do Embrião/psicologia , Manejo de Espécimes/métodos , Adulto , Atitude , Bélgica , Tomada de Decisões , Feminino , Fertilização in vitro/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Medicina Reprodutiva/métodos , Medicina Reprodutiva/tendências , Inquéritos e Questionários
5.
Hum Reprod ; 26(3): 535-44, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21233107

RESUMO

BACKGROUND: Conflicting results have been reported regarding the use of polarized microscopy as a predictive tool for human oocyte quality. METHODS: Oocytes from 121 ICSI cycles were analysed with polarized microscopy. Both qualitative (spindle presence) and quantitative (retardance) data were correlated to the key assisted reproduction technology outcome parameters. Second, polarized microscopy was applied on in vitro matured (IVM) oocytes from germinal vesicle oocytes that matured after 24 or 48 h and from metaphase I oocytes matured after 3 or 24 h. These data were correlated with confocal analysis of spindle-chromosome complex. RESULTS: Spindles were detected in 82% of in vivo matured oocytes and in 64% adjacent to the first polar body (PB). Fertilization rate was higher in oocytes with a visible spindle (P = 0.0002). In patients aged over 35 years, the percentage of a visible spindle and mean spindle retardance was lower than in younger patients (P < 0.03). A higher number of spindles were located adjacent to the first PB in IVM matured oocytes (94%) versus in vivo matured oocytes (P < 0.0001). Confocal imaging revealed that spindle absent IVM metaphase II (MII) oocytes had a higher degree of aberrant spindle and chromosomal configurations versus IVM MII oocytes with a visible spindle (P = 0.002). CONCLUSIONS: Oocytes with absent spindles were associated with lower fertilization rates and advanced female age. Other important outcome parameters (embryo quality, pregnancy rates) were not correlated to spindle nor zona inner layer analysis. Interestingly, confocal imaging showed that polarized microscopy might be used as a qualitative predictive tool of human oocyte quality but no correlation could be demonstrated with quantitative polarized microscopy.


Assuntos
Fertilização in vitro , Fertilização , Infertilidade/terapia , Oócitos/fisiologia , Oócitos/ultraestrutura , Fuso Acromático , Adulto , Envelhecimento , Biomarcadores , Células Cultivadas , Aberrações Cromossômicas , Feminino , Humanos , Cinética , Metáfase , Microscopia Confocal , Microscopia de Polarização , Oogênese , Gravidez , Resultado da Gravidez , Taxa de Gravidez , Injeções de Esperma Intracitoplásmicas , Fuso Acromático/ultraestrutura , Zona Pelúcida/ultraestrutura
6.
Hum Reprod ; 26(4): 791-800, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21242149

RESUMO

BACKGROUND In some couples, not all retrieved oocytes mature, even after prolonged in vitro culture. The underlying mechanisms are not known, although ionophore treatment may alleviate metaphase I (MI) arrest in some mouse strains. We attempted to induce first polar body (PB) extrusion and fertilization using assisted oocyte activation (AOA) after ICSI in maturation-resistant human MI oocytes. METHODS Four ICSI patients are described in this retrospective study. A pilot study tested the calcium ionophore ionomycin (10 µM) on donated MI oocytes from patients with a normal number of metaphase II (MII) oocytes. Subsequently, ionomycin was used to induce first PB extrusion in two patients showing maturation-resistant MI oocytes. AOA, by calcium injection and ionomycin exposure, was applied when mature oocytes were available. Oocytes were analysed by polarized microscopy and immunostaining. RESULTS Ionomycin induced the first PB extrusion in MI oocytes from patients with a normal number of retrieved MII oocytes, while extended in vitro culture failed to achieve the MII stage. Similarly, ionomycin induced first PB extrusion in one of two patients with recurrent maturation-resistant MI oocytes. Use of ICSI combined with AOA on MII oocytes matured in vitro or in vivo resulted in failed or abnormal fertilization with no further embryo cleavage potential. Highly abnormal spindle and chromosome configurations were observed in MI maturation-resistant oocytes, in contrast to control MI oocytes. CONCLUSIONS Ionophore induced first PB extrusion in MI oocytes from patients without maturation arrest but to a lower extent in maturation-resistant MI oocytes. Immunofluorescence staining and confocal analysis revealed, for the first time, highly abnormal spindle/chromosomal structures that may be responsible for this maturation arrest.


Assuntos
Meiose , Metáfase , Animais , Cromatina/química , Feminino , Humanos , Ionomicina/farmacologia , Ionóforos/farmacologia , Camundongos , Microscopia de Fluorescência/métodos , Microtúbulos/metabolismo , Oócitos/citologia , Oócitos/metabolismo , Projetos Piloto , Injeções de Esperma Intracitoplásmicas/métodos , Fuso Acromático
7.
Hum Reprod ; 25(3): 705-13, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20023294

RESUMO

BACKGROUND: Although IVF treatments using cryopreserved embryos are offered by most infertility centres, little is known about patients' opinions regarding treatment using these embryos. The objective of this study is to describe how patients think about (treatment with) cryopreserved embryos. METHODS: In-depth interviews based on the method of interpretative phenomenological analysis were conducted with patients undergoing IVF/ICSI treatment at the Department of Reproductive Medicine of the Ghent University Hospital between May and July 2006. Seven couples (one couple considered as one participant) and 11 female patients who attended the clinic without their partner were interviewed. RESULTS: Most participants knew little about medical-technical procedures involved in treatment with cryopreserved embryos. This was compensated by a high confidence in the medical team. However, seven of the eighteen participants thought the quality of cryopreserved embryos diminished during the storage period. A lack of knowledge about medical-technical procedures was compensated by metaphors related to other domains of experience, especially kitchen metaphors: this might add to the belief that frozen embryos have an expiry date. However, none of the patients who considered treatment with cryopreserved embryos as less effective ever thought of refusing this type of treatment or discussed this with medical staff. In addition, patients rarely discussed the moral status of their cryopreserved embryos. CONCLUSIONS: The beliefs of infertile patients about (the effectiveness of treatment with) cryopreserved embryos encompass misconceptions, and doubts and fears which may influence their decision-making but which are seldom discussed with the medical staff.


Assuntos
Destinação do Embrião/psicologia , Embrião de Mamíferos , Técnicas de Reprodução Assistida/psicologia , Adulto , Formação de Conceito , Criopreservação/ética , Cultura , Técnicas de Cultura Embrionária/ética , Destinação do Embrião/ética , Transferência Embrionária/ética , Feminino , Fertilização in vitro/ética , Humanos , Infertilidade/terapia , Entrevista Psicológica , Masculino , Técnicas de Reprodução Assistida/ética
8.
Reprod Biomed Online ; 20(7): 880-91, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20413349

RESUMO

Interviews were conducted with patients undergoing treatment at the department for reproductive medicine at the University Hospital of Ghent, Belgium to describe how patients think about the use of embryos for science and how patients' views are related to their decision whether or not to donate their supernumerary embryos for science. Most participants knew little about the use of embryos for science. The perception of science and scientists, rather than the perception of the embryo, played an important role in the disposition decision making. The feeling of not having control over what would happen to their embryo and the fear that scientists would allow their embryo to develop into children were the main arguments against donation. This showed the importance of information about scientific research with embryos, such as the 14-day limit to keep embryos alive. Half of the participants pictured the medical team as the requesting party for their embryos and those who were not willing to donate indicated that they could be persuaded when asked directly by their caregivers. In conclusion, this study suggests that the perception of science, rather than the perception of the embryo, plays an important role in the decision to donate for science.


Assuntos
Destinação do Embrião/psicologia , Embrião de Mamíferos , Adulto , Atitude , Bélgica , Criopreservação , Pesquisas com Embriões , Feminino , Fertilização in vitro , Humanos , Masculino , Ciência , Injeções de Esperma Intracitoplásmicas , Doadores de Tecidos
9.
Cytopathology ; 21(2): 111-5, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19735277

RESUMO

OBJECTIVE: The primary objective was to describe the neovaginal cytology in transsexual patients (n = 50) treated with the inverted penile skin technique. Secondary objectives were to compare our cytological findings with patient characteristics including use of oestrogens, sexual orientation and penetrative intercourse. METHODS: The medical and surgical history, sexual orientation and whether there was a current relationship were ascertained. A speculum examination was followed by microscopy of a Pap smear of the neovaginal vault. RESULTS: Well-preserved nucleated squamous cells were found in 72%. The correlation between their presence and sexual orientation was highly significant (P = 0.016), with those not sexually interested and homosexually oriented all having nucleated cells on the Pap smear. However, the correlation between these cells and penetrative intercourse failed to reach significance. Four samples showed atypical squamous cells of undetermined significance, all were negative for high-risk human papillomavirus (HR-HPV) types. One patient showed a low-grade squamous intraepithelial lesion that was HR-HPV positive. There was a significant correlation between the presence of cytological lesions and sexual orientation (P = 0.006). Four percentage of the specimens showed Döderlein bacilli. Inflammation was found in 30.6% of samples with squamous cells. CONCLUSIONS: The penile skin-lined neovagina of transsexual women can reflect the cytological findings present in biological women. However 'normal' cervical cytology, with superficial, intermediate and parabasal cells as well as Döderlein bacilli, was found in only 4% of transsexual women. Although one patient's Pap test showed koilocytes and was HR-HPV positive, no high-grade squamous intraepithelial lesions were identified.


Assuntos
Células Epiteliais/citologia , Procedimentos de Cirurgia Plástica , Retalhos Cirúrgicos , Transexualidade , Vagina/citologia , Vagina/cirurgia , Adulto , Terapia de Reposição de Estrogênios , Feminino , Humanos , Papillomaviridae/isolamento & purificação , Comportamento Sexual/fisiologia , Vagina/virologia
10.
Verh K Acad Geneeskd Belg ; 72(3-4): 137-47, 2010.
Artigo em Holandês | MEDLINE | ID: mdl-21072957

RESUMO

Thanks to assisted reproduction technology (ART) most couples with infertility can be helped today. Since the beginning of ART, however, two major problems have existed. In the first years of IVF more than one embryo was transferred in order to reach acceptable pregnancy rates, but this entails a risk of multiple pregnancy with all its morbidity and mortality due to premature birth. Also, studies comparing the outcome of children following ART with the outcome of children who were spontaneously conceived, showed that ART increased the risk of prematurity and low birth weight, even in singleton pregnancies. The transfer of just one embryo (single embryo transfer or SET) in IVF/ICSI treatment cycles appeared to be the only answer to the epidemic of multiple pregnancies. The studies which analyze the outcome of SET singletons are promising, since they suggest that a broader application of SET could have a positive influence on the outcome of pregnancies after ART as well.


Assuntos
Resultado da Gravidez , Taxa de Gravidez , Transferência de Embrião Único , Adulto , Feminino , Humanos , Gravidez , Gravidez Múltipla
11.
Hum Reprod ; 24(4): 896-905, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19136479

RESUMO

BACKGROUND: Little research has been done on how beliefs of infertility patients about their embryos are related to their disposition decisions. The objective of this study was to describe how patients speak about their embryos, in moral (e.g. status) and non-moral terms, and to investigate how patients' narratives are related to their disposition preferences. METHODS: In-depth interviews based on the method of interpretative phenomenological analysis were conducted with patients undergoing IVF/ICSI treatment between May and July 2006. RESULTS: Seven couples and 11 female patients were interviewed. Six major themes emerged from the narratives of the participants when they spoke about their embryos: (i) a medical-technical perspective; (ii) feelings; (iii) genetic link to oneself and/or one's partner; (iv) symbolic meaning of the relationship between the infertile partners; (v) moral status and (vi) instrumental value. All but two participants spontaneously considered the embryo disposition options as a two-stage decision sequence. In the first step, they considered donation to another couple for reproductive purposes. At this stage, the presence of the themes 'genetic link' and 'symbol of the relationship' was linked with a clear reluctance to donate. In the second step of the decision-making process, the option of donation for research and discarding were considered. At this stage, participants' confidence in medical science and the instrumental value they attached to the embryo were related to their decisions. CONCLUSIONS: Patients' conceptualization of their embryos plays an important role in embryo disposition decisions. Our research showed that patients deal with these decisions in a two-stage decision sequence.


Assuntos
Cultura , Destinação do Embrião/psicologia , Infertilidade/psicologia , Infertilidade/terapia , Adulto , Criopreservação , Tomada de Decisões , Destinação do Embrião/ética , Emoções , Feminino , Fertilização in vitro , Humanos , Masculino , Princípios Morais , Inquéritos e Questionários , Adulto Jovem
12.
Hum Reprod ; 24(4): 856-60, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19131401

RESUMO

BACKGROUND: It has been suggested in the literature that low-dose aspirin leads to an increased number of oocytes in IVF/ICSI as well as a higher pregnancy rate. The aim of the present study was to investigate the effect of daily administration of low-dose aspirin, compared with placebo, on pregnancy rate in IVF and ICSI. METHODS: This study was a prospective, randomized, double-blind placebo controlled trial, performed in the fertility centre of the University Hospital of Ghent. Concealed allocation by computerized randomization was done by the central pharmacy of the hospital. Daily oral administration of aspirin 100 mg or placebo started before stimulation and was continued until confirmation of pregnancy by detection of fetal heart activity on ultrasound. The primary outcome measure assessed in this trial was clinical pregnancy rate per cycle. RESULTS: Two hundred and one couples were included in this study, 193 women (aspirin group n = 97, placebo group n = 96) started treatment and 181 underwent an embryo transfer. There were 31 clinical pregnancies (31/97 or 32%) in the aspirin group versus 30 (30/96 or 31%; P = 0.916; OR 1.033; 95% CI 0.565-1.890) in the placebo group. CONCLUSIONS: This randomized controlled trial could not show a significant difference in clinical pregnancy rate between the aspirin and the placebo group in a first or second IVF/ICSI cycle. Given the lack of evidence for a beneficial effect of low-dose aspirin, it appears that low-dose aspirin should not be prescribed routinely in IVF/ICSI treatment. ClinicalTrials.gov Identifier: NCT00644085.


Assuntos
Aspirina/administração & dosagem , Fertilização in vitro/métodos , Injeções de Esperma Intracitoplásmicas/métodos , Adulto , Método Duplo-Cego , Feminino , Humanos , Masculino , Oócitos/citologia , Oócitos/efeitos dos fármacos , Indução da Ovulação , Inibidores da Agregação Plaquetária/administração & dosagem , Gravidez , Estudos Prospectivos
13.
Hum Reprod ; 24(10): 2417-28, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19584136

RESUMO

BACKGROUND: In mammals, oocyte activation at fertilization is thought to be induced by the sperm-specific phospholipase C zeta (PLCzeta). However, it still remains to be conclusively shown that PLCzeta is the endogenous agent of oocyte activation. Some types of human infertility appear to be caused by failure of the sperm to activate and this may be due to specific defects in PLCzeta. METHODS AND RESULTS: Immunofluorescence studies showed PLCzeta to be localized in the equatorial region of sperm from fertile men, but sperm deficient in oocyte activation exhibited no specific signal in this same region. Immunoblot analysis revealed reduced amounts of PLCzeta in sperm from infertile men, and in some cases, the presence of an abnormally low molecular weight form of PLCzeta. In one non-globozoospermic case, DNA analysis identified a point mutation in the PLCzeta gene that leads to a significant amino acid change in the catalytic region of the protein. Structural modelling suggested that this defect may have important effects upon the structure and function of the PLCzeta protein. cRNA corresponding to mutant PLCzeta failed to induce calcium oscillations when microinjected into mouse oocytes. Injection of infertile human sperm into mouse oocytes failed to activate the oocyte or trigger calcium oscillations. Injection of such infertile sperm followed by two calcium pulses, induced by assisted oocyte activation, activated the oocytes without inducing the typical pattern of calcium oscillations. CONCLUSIONS: Our findings illustrate the importance of PLCzeta during fertilization and suggest that mutant forms of PLCzeta may underlie certain types of human male infertility.


Assuntos
Infertilidade Masculina/enzimologia , Fosfoinositídeo Fosfolipase C/metabolismo , Interações Espermatozoide-Óvulo/fisiologia , Espermatozoides/metabolismo , Substituição de Aminoácidos , Animais , Sítios de Ligação , Cálcio/metabolismo , Fertilização/fisiologia , Humanos , Immunoblotting , Masculino , Camundongos , Modelos Moleculares , Fosfoinositídeo Fosfolipase C/química , Fosfoinositídeo Fosfolipase C/genética , Mutação Puntual , Estrutura Terciária de Proteína
14.
Reprod Biomed Online ; 18(3): 391-400, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19298739

RESUMO

A conceptual model was developed of the impact of ovarian stimulation on women's functioning and wellbeing. A patient-reported outcome (PRO) measure was generated based on this model. Qualitative measures used comprised a discussion guide and coding system devised according to the Food and Drug Administration guidelines for developing PRO measures. Data were gathered through telephone and face-to-face interviews and focus groups. A total of 47 women across nine fertility healthcare providers in France, UK and USA were included in the analysis. The mean age of patients was 35 years (range 24-44). Based on data collected and prior postulated domains, a conceptual model of the impact of ovarian stimulation was developed. Three major (psychological, interference in daily life, logistics) and one minor (side effects) domain were identified. Short-term consequences included problems with psychological health and productivity. Longer term consequences included depression and poor self-image. Factors that modified the impact of ovarian stimulation were also identified. This is the first model providing insight into the impact of ovarian stimulation on women's functioning and wellbeing. Once validated, it can be applied in quantitative research to improve understanding of the impact of ovarian stimulation, and assist in developing more patient-centred approaches to treatment.


Assuntos
Indução da Ovulação , Adulto , Feminino , Grupos Focais , França , Humanos , Entrevistas como Assunto , Saúde Mental , Reino Unido , Estados Unidos
15.
Hum Reprod ; 23(11): 2421-6, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18664472

RESUMO

BACKGROUND: The aim of this study is to assess differences in human chorionic gonadotropin (hCG) values between singleton IVF/ICSI pregnancies after elective single (eSET) versus double embryo transfer (DET). METHODS: This is a unicentre, retrospective, non-randomized study of women with eSET or DET in years 2000-2006, giving birth to a singleton child with a birthweight of at least 500 g (N = 790). These women had between 1 and 6 hCG assessments in our centre. Log hCG values from Days 15 to 35 after oocyte pick-up were compared between eSET and DET patients in a multivariate analysis. RESULTS: We compared log hCG values in 456 eSET patients with log hCG values in 334 DET patients. Log hCG values were significantly higher after eSET than after DET from Day 15 until Day 35 after oocyte pick-up (P < 0.001). CONCLUSION: The lower hCG values in early pregnancy are possibly due to a delay in implantation when two embryos are transferred and one of them does not implant, but the exact mechanism is unknown.


Assuntos
Gonadotropina Coriônica/sangue , Transferência Embrionária/métodos , Fertilização in vitro/métodos , Injeções de Esperma Intracitoplásmicas/métodos , Adulto , Implantação do Embrião , Feminino , Humanos , Masculino , Idade Materna , Análise Multivariada , Gravidez , Gravidez Múltipla/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Tempo
16.
Hum Reprod ; 23(3): 619-26, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18216037

RESUMO

BACKGROUND: The aim of this study was to evaluate the optimal transplantation site for ovarian tissue fragments in murine hosts. We compared the transplantation to the back muscle (B) versus the kidney capsule (K) in a mouse allograft model. METHODS: Hemi-ovaries from 12-day-old mice were allografted into B and K of bilaterally ovariectomized same strain recipients which had undergone gonadotrophin stimulation (n = 15). Graft survival after 27 days, angiogenesis and follicle development were scored and compared to age-matched control ovaries (38-day old, n = 5). The ability of oocytes to be fertilized was studied after IVF, ICSI and embryos were transferred to recipient mothers. Anti-mouse CD 31+ antibody was used to evaluate neo-vascularization in grafts. RESULTS: Primordial follicle survival was higher (P < 0.01) and vascular support was better (P < 0.01) in B- than in K-grafts. From 34 oocytes retrieved from B-grafts (15 metaphase I, of which 14 matured in vitro, and 19 collected at metaphase II), 18 morulae were obtained. Transfer of 12 embryos obtained by ICSI led to three live offspring, and transfer of six IVF embryos to another recipient mother yielded four offspring, one of which was born dead and one showed placental anomalies. CONCLUSIONS: The back muscle is a promising site for ovarian allografts in mice. This is the first report of live offspring obtained after back muscle grafting using both IVF and ICSI.


Assuntos
Músculo Esquelético , Ovário/transplante , Animais , Dorso/cirurgia , Feminino , Fertilização in vitro , Hormônio Foliculoestimulante/uso terapêutico , Sobrevivência de Enxerto , Rim , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Endogâmicos CBA , Modelos Animais , Folículo Ovariano/citologia , Ovário/irrigação sanguínea , Indução da Ovulação
17.
Child Care Health Dev ; 34(5): 665-74, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18796058

RESUMO

BACKGROUND: Spina bifida (SB) can place parents at risk for increased levels of parenting stress. Little is known, however, about the role of parents' intrapersonal resources. Therefore, based on ideas of the Disability-Stress-Coping Model, relations between the severity of SB, parents' personality traits and parenting stress were examined. METHODS: Forty-six mothers and 37 fathers of children with SB (6-14 years) participated. Severity of SB (physical dysfunctions and cognitive functions), parental personality (Big Five) and parenting stress (Parenting Stress Index) were measured. Multiple regression analyses were performed. RESULTS: The severity of the child's physical dysfunctions was positively associated with parenting stress. Extraversion (mothers only), emotional stability and agreeableness (fathers only) were negatively related to parenting stress. In the final model, 64% of the variance in mothers' and 67% of the variance in fathers' levels of parenting stress was explained. Parents' personality traits explained the largest proportions of variance in parenting stress. CONCLUSION: Mobility, bladder and bowel dysfunctions in school-aged children with SB represent ongoing stressors for parents. Parents' intrapersonal resources of positive affectivity, however, are more important determinants of parental adjustment to SB than the child's physical dysfunctions.


Assuntos
Adaptação Psicológica , Poder Familiar/psicologia , Personalidade , Disrafismo Espinal/psicologia , Estresse Psicológico , Adulto , Criança , Crianças com Deficiência , Pai/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mães/psicologia , Países Baixos , Inventário de Personalidade , Inquéritos e Questionários
18.
Facts Views Vis Obgyn ; 10(2): 85-91, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31110647

RESUMO

BACKGROUND: Freezing all embryos generated during an IVF/ICSI attempt is used increasingly as a strategy to optimize results. We investigated whether we could find differences in outcome between subpopulations of patients undergoing the so-called "freeze all" procedure. METHODS: Non-interventional, observational, retrospective study of 131 freeze-all cycles performed between July 2015 and December 2016 at the University Hospital of Ghent (Belgium). Freeze-all indications were categorized in 4 groups: group 1, high progesterone level (PE) on the day of hCG administration defined as >1.5 ng/ml (n= 50); group 2, risk of Ovarian Hyperstimulation Syndrome (OHSS) (n=38); group 3, partner donation in lesbian couples (n=23) and group 4, a miscellany of other reasons (n=20). Clinical pregnancy with fetal heart beat after the first thawed embryo transfer (ET) after ovum pick-up and cumulative clinical pregnancy rate per attempt were used as primary outcome variables. RESULTS: Clinical pregnancy rate (CPR) with fetal heart beat in the first thawed ET and cumulative clinical pregnancy rate per cycle (CCPR) were not statistically different between the four groups. In the group of PE a cumulative clinical pregnancy rate was observed of 40,5%, this in comparison to the 3 other groups involving risk of OHSS (66,7%), partner donation (61,1%) and other reasons (57,1%). More rFSH was used in the group with Progesterone elevation (PE) (P=0.04), as described earlier in the literature. CONCLUSION: Our findings indicate comparable (cumulative) clinical pregnancy rates per attempt between the four groups of freeze-all indications.

19.
Facts Views Vis Obgyn ; 10(4): 173-179, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31367289

RESUMO

AIM OF THE STUDY: Investigation of the correlation between serum estradiol (E2), salivary E2 and sonographic measurements of follicles in women undergoing controlled ovarian stimulation (COS) for IVF/ICSI. METHODS: This is a prospective study performed at the Department of Reproductive Medicine of Ghent University Hospital (Belgium) between November 2016 and January 2017 over a total of 40 patients. During routine COS, two-dimensional measurements of the follicles were performed using transvaginal ultrasound (TVUS) and E2 was measured in saliva and serum. A linear Mixed-Effects model (MIXED) was built, using SPSS Statistics 24. RESULTS: Statistical analysis shows a strong linear correlation between serum and salivary E2. For every single unit increase in serum E2 (+ 1 ng/L) the estimated saliva E2 concentration is expected to increase with 0.011 pg/mL (95% CI [0.009 - 0.01]). Strong linear correlations between both saliva and serum E2 and follicular dimensions were also found. For every millimetre increase in follicle diameter the estimated serum E2 concentration is expected to increase with 8.32 ng/L (95% CI [7, 10-9, 54]). For every millimetre increase in follicle diameter the estimated saliva level of E2 is expected to increase with 0.11 pg/mL (95% CI [0.09 - 0.13]). CONCLUSIONS: A strong correlation between serum and salivary E2 concentrations was found. In addition, both are strongly correlated with the product of the number of follicles and their average diameter, measured by TVUS. More investigation needs to be done to find out if salivary E2 is an effective tool for monitoring IVF cycles.

20.
Facts Views Vis Obgyn ; 9(3): 157-162, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29479401

RESUMO

OBJECTIVE: To examine advantages and disadvantages as perceived by patients and their partners using home sonography for monitoring ovarian stimulation prior to artificial fertility treatment. METHOD: We interviewed 25 patients and their partners and took 44 online questionnaires. All interviews were written out and the transcripts were coded, based on words patients used to describe their experience. The query consisted mostly of statements, of which the participant had to ascertain whether or not they agreed (1= I absolutely don't agree and 5 = I absolutely agree). The median and mean of agreement scores was calculated. RESULTS: The time saving and practical aspect of self-operated endo-vaginal tele-monitoring (SOET) was the most important argument to choose SOET. In addition, the following aspects were considered advantages: more autonomy, no need for leave from work, a better doctor-patient relationship and sometimes more involvement of the partner. The most important disadvantage is a sense of initial insecurity couples experience during the first ultrasound. Almost all couples experience this, but they accept it as part of the process. CONCLUSION: Using SOET was a pleasant experience for all couples. All patients and partners had positive expectations about SOET. The initial insecurity can be minimized, by improving teaching measures. It would be positive if a legal framework is set up allowing reimbursement of home sonography.

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