Publications by authors named "Vivian Ferreira do Amaral"

Article Synopsis
  • The study aimed to assess how seasonal changes (winter vs. summer) impact oocyte (egg) quality in women struggling with infertility during in vitro fertilization.
  • Researchers analyzed 155 IVF cycles, noting significant differences in oocyte quality during summer (71 cycles) compared to winter (84 cycles), using specific quality assessment categories.
  • The results indicated that summer oocytes generally had better quality, while winter oocytes exhibited more abnormalities and lower quality, highlighting the need for further research on potential influencing factors like diet and exercise.
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Objective: This study aimed to analyze the impact of contraceptives on medical students at the Federal University of Paraná and verify adherence, consequences, and lifestyle effects of the contraceptive method used.

Methods: This is an observational, cross-sectional study in which 214 participants answered an online questionnaire composed of 30 questions. For statistical analysis, the Stata® 16.

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Background: The diagnosis of mood disorders (MD) during pregnancy is challenging and may bring negative consequences to the maternal-fetal binomial. The long waitlist for specialized psychiatric evaluation in Brazil contributes to the treatment omission. Almost 20.

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 To evaluate the effect of mesenchymal stem cells (MSCs) on fertility in experimental retrocervical endometriosis.  A total of 27 New Zealand rabbits were divided into three groups: endometriosis, in which endometrial implants were created; mesenchymal, in which MSCs were applied in addition to the creation of endometrial implants; and control, the group without endometriosis. Fisher's exact test was performed to compare the dichotomous qualitative variables among the groups.

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Introduction: Acute myocardial infarction is a social health problem of epidemiological relevance, with high levels of morbidity and mortality. Stress is one of the modifiable risk factors that triggers acute myocardial infarction. Stress is a result of a set of physiological reactions, which when exaggerated in intensity or duration can lead to imbalances in one's organism, resulting in vulnerability to diseases.

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Introduction: Most cardiomyocytes do not regenerate after myocardial infarction. Porcine small intestinal submucosa has been shown to be effective in tissue repair.

Objective: To evaluate myocardial tissue regeneration and functional effects of SIS implantation in pigs after left ventriculotomy.

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Objective: To analyze the functional and anatomical-pathological effect of transplantation of bone marrow mononuclear cells associated to aquatic physical activity after myocardial infarction in rats.

Methods: Twenty-one rats were induced by myocardial infarction, through left coronary artery ligation. After a week, the animals were subjected to echocardiography for evaluation of left ventricle ejection fraction (LVEF, %) and dyastolic and end systolic volume of the left ventricle (EDV, ESV, ml), randomized and the transplantation of mononuclear stem cells.

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Background: Myocardial infarction is a public health problem. Functional food is an alternative treatment for cardiovascular diseases.

Objective: The objective was to analyze the functional and anatomopathological post-myocardial-infarction effects of soybean extract (SE) and isoflavone (IF).

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Objective: To evaluate the effect of anti-TNF-α in the treatment of endometrial implants in the peritoneum of rats.

Methods: Endometrial implants were surgically induced in 120 female Wistar-Albino rats. The animals were randomly divided into four groups.

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Objective: To study the effect of bone marrow derived-mononuclear stem cells transplantation in the growth, VEGF-R and TNF-alpha expression of surgically induced endometriosis in an experimental model.

Study Design: This is an experimental study conducted in the Center for Health and Biological Sciences at the Pontifical Catholic University of Parana, Brazil. Endometriotic implants were surgically induced in 120 female Wistar rats.

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Introduction And Hypothesis: The objective of this study was to evaluate the prevalence of urinary incontinence (UI), the pelvic floor, and the quality of life during pregnancy and in the postpartum.

Methods: Three hundred and forty-three women in the third trimester of pregnancy were submitted to physiotherapeutic evaluation for UI and evaluation of pelvic floor muscle function and were asked to fill out the King's Health Questionnaire (KHQ). Of these, 236 returned for postpartum evaluation (65.

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Objectives: To develop an experimental model of endometriosis in rats.

Methods: Thirty adult female Wistar rats were used. The surgical technique consisted of median laparotomy with identification of the bicornuate uterus and resection of a 2-cm segment of the right uterine horn.

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Context And Objective: Diagnoses of endometriosis are based on observation of endometriotic lesions by means of laparoscopy, along with the pathological findings. The aim of this study was to evaluate the sensitivity and specificity of the macroscopic findings in relation to the histopathological findings. More specifically, we aimed to test the efficacy of laparoscopy alone for diagnosing endometriosis and to evaluate the laterality of endometriosis among the study population.

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Context And Objective: One of the diagnostic markers of endometriosis is CA-125, and elevated levels of this are caused by high concentrations in the ectopic endometrium. The objective of this study was to correlate CA-125 levels in serum and peritoneal fluid from women with and without pelvic endometriosis.

Design And Setting: This was a prospective, cross-sectional, controlled study of consecutive patients undergoing laparoscopy for infertility, pelvic pain or tubal ligation, during early follicular phase, at the university hospital of Faculdade de Medicina de Ribeirão Preto.

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