Jorge Beires
University of Porto
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Featured researches published by Jorge Beires.
Fertility and Sterility | 2010
Marita Pall; Ricardo Azziz; Jorge Beires; Duarte Pignatelli
OBJECTIVE To test the hypothesis that women with polycystic ovary syndrome (PCOS) are distinguishable from those with 21-hydroxylase-deficient nonclassic adrenal hyperplasia on the basis of having polycystic ovaries and metabolic dysfunction. DESIGN Prospective observational. SETTING Tertiary care center. PATIENT(S) Fifty-two lean and 54 obese women with PCOS according to the 1990 National Institutes of Health criteria, 23 women with nonclassic adrenal hyperplasia, and 27 controls. INTERVENTION(S) History and physical examination, blood sampling, ovarian sonography, oral glucose tolerance, and acute adrenocorticotropin stimulation testing. MAIN OUTCOME MEASURE(S) The frequency of clinical, biochemical, and metabolic features. RESULT(S) Women with PCOS had a higher frequency of oligomenorrhea or amenorrhea than those with nonclassic adrenal hyperplasia. Mean androstenedione and DHEAS levels were highest in nonclassic adrenal hyperplasia. The degree of metabolic dysfunction was greatest in obese women with PCOS; women with nonclassic adrenal hyperplasia and lean women with PCOS did not differ in degree of metabolic dysfunction. Women with nonclassic adrenal hyperplasia had a lower prevalence of polycystic ovaries than those with PCOS. The proportion of patients with an LH/FSH ratio >2 was greater in women with PCOS, compared with those with nonclassic adrenal hyperplasia. Basal 17-hydroxyprogesterone levels >2 ng/mL were found in 87%, 25%, 20%, and 7% of women with nonclassic adrenal hyperplasia, lean women with PCOS, obese women with PCOS, and controls, respectively. CONCLUSION(S) Nonclassic adrenal hyperplasia should be excluded in all women presenting with hirsutism, with use of a basal follicular phase 17-hydroxyprogesterone level, regardless of the presence of polycystic ovaries or metabolic dysfunction; however, women with nonclassic adrenal hyperplasia have a higher prevalence of normal ovulation and lower likelihood of having an LH/FSH ratio >2 or polycystic ovaries.
Fertility and Sterility | 1997
Alberto Barros; Mário Sousa; Cristiano Oliveira; Joaquina Silva; Vasco Almeida; Jorge Beires
OBJECTIVE To report the birth of two healthy children after intracytoplasmic sperm injection (ICSI) with totally immotile spermatozoa recovered from the ejaculate. DESIGN Retrospective case report. SETTING University-based hospital. PATIENT(S) Four couples in whom spermatozoa recovered from the ejaculate were totally immotile but presented normal vitality scores. INTERVENTION(S) Therapeutical IVF-ET attempts coupled with ICSI. MAIN OUTCOME MEASURE(S) Fertilization and pregnancy results after ICSI. RESULTS With random sperm injection, 19 of the 36 injected oocytes showed normal fertilization and cleavage. One of four patients had a twin pregnancy that resulted in birth of two healthy children. CONCLUSION(S) In cases in which totally immotile ejaculated sperm present normal vitality scores, normal clinical outcomes can be achieved by using the usual random sperm selection during conventional ICSI.
Reproductive Sciences | 2011
Carla Bartosch; José Manuel Lopes; Jorge Beires; Mário Sousa
The human endometrium is a hormonally regulated tissue that cyclically growths and differentiates in order to become a structure adequate for implantation. Molecular studies have shown some contradicting results and thus a reappraisal of the endometrium ultrastructure is warranted. In our study, endometrium biopsies were taken during the implantation window of 10 healthy women of reproductive age and analyzed using electron microscopy. Our results showed that during implantation window, the endometrial epithelium encompassed 4 cell types: microvilli-rich cells, pinopode cells, vesiculated cells, and ciliated cells. These cells showed signs of active communication with their external environment and neighboring cells, such as endocytosis, transcytosis and exocytosis. We highlighted important differences between surface and glandular epitheliums and characterized apocrine and holocrine secretion. It is likely that the features described reflect distinct functions in endometrium physiology that should be taken into account in the evaluation of the endometrium during the implantation window.
Archives of Andrology | 1998
Alberto Barros; Mário Sousa; M. J. Andrade; Cristiano Oliveira; Joaquina Silva; Jorge Beires
We describe the case of a man who, after a gun-shot wound, has become paraplegic. As a consequence of his spinal cord injury he developed infertility due to incomplete erection and anejaculation. After several unsuccessful penile vibratory stimulation attempts, it was possible to achieve ejaculation by means of transrectal electrostimulation. However, the total sperm motility count, the percentage of normal sperm morphology, and the vitality and hypo-osmotic swelling test scores were rather low, and in particular viability was strikingly decreased during sperm preparation. These parameters further decreased following electroejaculate, forcing us to use intracytoplasmic sperm injection instead of conventional in vitro fertilization for the treatment cycle. A normal pregnancy was achieved which resulted in birth of a healthy girl on 1st January 1997.
European Journal of Obstetrics & Gynecology and Reproductive Biology | 2016
Pedro Vieira-Baptista; Joana Lima-Silva; Jorge Beires; José Martinez-de-Oliveira
OBJECTIVES To describe the presentation and characteristics of patients with Lipschütz ulcers (LU) and to evaluate the role of a standard protocol in the aetiological diagnosis. STUDY DESIGN Retrospective analysis of all cases of diagnosis of LU at our Vulvar Clinic during a five-year period. RESULTS Of 110 women with vulvar ulcers, 33 (30.0%) had a diagnosis of LU. The mean age was 29.1±15.14 years (10-79 years). Nine (27.3%) were 35 years old or more. The majority had had their sexual debut (28, 84.8%). Ten patients (30.3%) referred had at least one previous similar episode. Twenty-five (75.7%) had non-gynecological symptoms in the week before. The ulcers were located most frequently on the vestibule (19, 57.6%) and the labia minora (10, 30.3%). Isolated lesions on the left side were uncommon (3, 9.1%). Most had multiple (22, 66.7%) lesions. The mean time to full healing of the lesions was 15.6±6.20 days. A microbiological possible cause was identified in 9 (27.3%) patients: CMV (3 cases), Mycoplasma pneumoniae (3 cases), EBV (2 cases) and PVB19 (1 case). The protocol did not include systematic biopsies, blood count differentials, C-reactive protein and liver enzymes, which may have lead to some missed diagnosis. CONCLUSIONS LU can be found in women of any age, most of them sexually active. In most cases the lesions are preceded by non-gynecological symptoms and recurrence is common. Most lesions occur on the vestibule and labia minora, being rarely found isolated on the left side. Viruses seem to be the most frequent associated agents but Mycoplasma pneumoniae serology should be considered. In one case there was a possible role for PVB19. A standard protocol can effectively exclude sexually transmitted diseases and lead to a diagnosis in up to a third of cases.
International Journal of Gynecology & Obstetrics | 2014
Pedro Vieira-Baptista; Joana Lima-Silva; João Cavaco-Gomes; Jorge Beires
To investigate the prevalence of vulvodynia in Portugal and factors associated with this condition.
Journal of Lower Genital Tract Disease | 2013
Pedro Vieira-Baptista; Luı́sa Machado; Ana Rosa Costa; Jorge Beires; José Martinez-de-Oliveira
Objectives Acute vulvar ulcers are quite common, and often, an etiological diagnosis cannot be achieved. This article reports 3 cases of vulvar ulcers in adult women infected with Mycoplasma pneumoniae. The authors were able to find only one similar report in the literature. Material and Methods Two women in their third decade of life and 1 in the fourth presented to the hospital with acute and intense vulvar pain. Two of them reported oropharyngeal symptoms in the preceding days. All 3 presented with extensive, painful, and destructive vulvar ulcers. A standard protocol was applied, including samples taken from the ulcer (microbiology and polymerase chain reaction) and blood drawn for serological examination and liver function testing. All 3 had the remarkable finding of a positive immunoglobulin G (IgG) and IgM for M. pneumonia (in one of the cases, IgM was initially inconclusive but turned to positive when repeated 2 weeks later). One patient had an extensive destruction of one labium minus, requiring surgical reconstruction. Results Two of them were treated with antibiotics, and one was not. However, in fact, all 3 healed in a similar period, making it probable that this kind of medication is not helpful. Conclusions M. pneumoniae might be associated with some cases of vulvar ulcers and should always be tested in this context. Probably, antibiotic treatment is not helpful, even when this agent is identified as the possible causal agent of vulvar ulcers.
Journal of Psychosomatic Obstetrics & Gynecology | 2017
Pedro Vieira-Baptista; Joana Lima-Silva; Jorge Beires; Gilbert Donders
Abstract Background: Vulvodynia is a frequently missed pathology, often confused with vaginismus. The Q-tip test (QTT) is fundamental for the diagnosis; however, there is lack of data about its performance in asymptomatic women. Objective: This study intended to evaluate the QTT for painful vestibular spots in asymptomatic women. Methods: Q-tips were gently pressed at different areas of the vulvar vestibule to obtain a 0–10 score representing the pain felt. This was performed in 267 consecutive patients presenting to the gynecology outpatient clinic for reasons other than vulvovaginal complaints. A questionnaire was done to evaluate the possibility of unrecognized vulvodynia. Results: Out of the 267 women, 18 (6.7%) fitted the diagnosis of vulvodynia and were excluded from the analysis. Of the remaining 249, 41 (16.5%) had a positive QTT. We could not find differences in the sexual activity rate between women with and without a positive QTT. No demographic differences could be found between the two groups. Only depression was more common in women with a positive QTT [31.7% (13/41) versus 10.8% (21/208), p=.001). Conclusions: Asymptomatic women can have painful vestibular spots in the absence of vulvodynia. A positive QTT cannot be considered equivalent to vulvodynia, highlighting the need for extensive workup of these women before that diagnosis can be assumed.
Gynecologic and Obstetric Investigation | 2014
Pedro Vieira-Baptista; Joana Lima-Silva; João Cavaco-Gomes; Jorge Beires; José Martinez-de-Oliveira
Aims: To investigate the differences between symptomatic and asymptomatic women with vulvar lichen sclerosus (LS). Methods: Data on file concerning 228 LS patients was retrospectively reviewed. Results: Most patients were symptomatic (193/228; 85%). Worsening of symptoms related to specific food intake was experienced by 26% (48/182) and pork was the most frequently cited (25/48; 52%); worsening at night was reported by 47% (87/185). Being over 50 years at the time of diagnosis or being menopausal were associated with being symptomatic (RR = 2.47, 95% CI: 1.15-5.29 and 6.55, 2.05-20.91, respectively). The same was true for urinary incontinence (UI) (5.23, 1.78-15.42), the use of absorbents (without UI) (3.59, 1.05-12.34) and dyspareunia (5.28, 1.64-17.0). All patients with a family history of LS were symptomatic. There was no association with hormonal factors or specific vulvar anatomical changes. Conclusions: Pork consumption may be involved in the worsening of symptoms. UI and the use of absorbents are more commonly present in symptomatic LS patients. Dietary changes and correction of UI might be useful in the control of LS symptoms.
Reproductive Biomedicine Online | 2016
Ana Póvoa; Pedro Xavier; Lucinda Calejo; Sandra Soares; Mário Sousa; Joaquina Silva; S. G. Sousa; Alberto Barros; Jorge Beires
Ovarian tissue cryopreservation represents a valid strategy to preserve ovarian function in patients with a high risk of premature ovarian failure. We present a case of ovarian tissue cryopreservation carried out in an 18-year-old woman after a laparotomy for left adnexal mass with left adnexectomy. Congenital absence of the right ovary was observed during surgery. To preserve fertility, rescue cryopreservation of ovarian tissue was carried out under extreme conditions (without adopting the standard published protocol, not yet available at our centre). Ten years later, transplantation of cryopreserved ovarian tissue was carried out and, shortly after it, restoration of ovarian function was confirmed.