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1.
JBRA Assist Reprod ; 24(3): 324-331, 2020 07 14.
Article in English | MEDLINE | ID: mdl-32202399

ABSTRACT

Primary ovarian insufficiency is a cause of infertility that affects about 1% of women under 40 years old, and is considered as idiopathic in 75% of cases. This review aims to carry out a critical synthesis of the knowledge of the chemical agents likely to affect follicular stock in humans and / or animals, by direct toxicity to follicles, or by increasing their recruitments. For the majority of toxic agents, only experimental data are currently available. We propose a strategy to encourage progress in identifying occupational factors responsible for premature ovarian failure.


Subject(s)
Endocrine Disruptors/adverse effects , Infertility/chemically induced , Primary Ovarian Insufficiency/chemically induced , Female , Humans
2.
JBRA Assist Reprod ; 23(2): 91-98, 2019 04 30.
Article in English | MEDLINE | ID: mdl-30875168

ABSTRACT

OBJECTIVE: This study aimed to assess whether a diagnosis of cancer interferes with ovarian function prior to the treatment of the disease. METHODS: This observational retrospective study used data from medical records of ovarian stimulation cycles performed for purposes of oocyte cryopreservation. RESULTS: The included patients had a mean age of 35.13±3.72 years and 51.6% of them were aged between 36 and 40 years. More than half of the patients (57.6%) were single and 82.1% had a normal body mass index (BMI). Most women had not become pregnant (85.5%) or had babies (95.1%) or miscarriages (89.6%) prior to cryopreservation. The mean number of oocytes obtained from non-cancer patients was 11.4±8, while for cancer patients the number was 13.8±9. The mean number of frozen mature oocytes was 9.7±7 for the non-cancer group and 11.2±7.2 for the cancer group. The majority (63.1%) of the patients had up to 10 oocytes frozen per cycle. Breast cancer had the highest incidence among the included patients. There was no significant difference in ovarian response between patients with different types of cancer. CONCLUSION: The number of harvested and frozen oocytes from cancer and non-cancer patients indicated that in the two groups response to ovarian stimulation was similar.


Subject(s)
Cryopreservation , Fertility Preservation/methods , Neoplasms , Oocytes , Ovary/physiology , Ovulation Induction , Adult , Female , Humans , Retrospective Studies
3.
Femina ; 33(9): 649-655, sept. 2005.
Article in Portuguese | LILACS | ID: lil-458506

ABSTRACT

Este estudo trata do transexualismo em seus aspectos gerais e legais. A sexualidade é a manifestação individual do ser humano, não se restringindo à genitália, mas incluindo toda uma forma de agir, pensar e de interagir. Tem-se lutado por uma liberdade sexual maior. Têm ocorrido mudanças em todo o mundo no campo da sexualidade. O Direito é um instrumento importante de inclusão e exclusão de pessoas no contexto social. Ele dita o comportamento ideal, o considerado "normal", o socialmente aceito. Os transexuais são indivíduos com desenvolvimento fenotípico e genotípico normal, que não se identificam dentro destes certos moldes. Em casos há discordância entre os sexos psicológico e biológico. Estas pessoas têm dificuldade para se aceitarem e, por isso, procuram a cirurgia para mudança de sexo; isto só pode ser realizado no Brasil em alguns casos selecionados, e com a concordância do Conselho Federal de Medicina, após avaliação detalhada. Depois de obter a autorização para realizar a cirurgia, conseguir autorização para a troca do prenome e do sexo no registro civil é outro problema. A posição dos legisladores é variável. No Direito geralmente há conservadorismo e, quando o legislador prefere não se arriscar inovando, basea-se na jurisprudência anterior. É importante reconhecer o direito à liberdade de orientação sexual, não expor o indivíduo ao constrangimento, respeitando assim o Princípio da Dignidade Humana. É importante reconhecer avanços crescentes na obtenção desta liberdade sexual, cabendo ao Direito acompanhar as mudanças que a sociedade conquistou


Subject(s)
Humans , Male , Female , Forensic Medicine , Legislation, Medical/trends , Sexuality , Transsexualism
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