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1.
Medicina (Kaunas) ; 60(2)2024 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-38399612

RESUMO

Obesity and obesity-related conditions today constitute a public health problem worldwide. Obesity is an "epidemic" chronic disorder, which is defined by the WHO as normal or excessive fat accumulation that may impair health. It is also defined for adults as a BMI that is greater than or equal to 30. The most common obesity-related diseases are type 2 diabetes mellitus, cardiovascular diseases, metabolic syndrome, chronic kidney disease, hyperlipidemia, hypertension, nonalcoholic fatty liver disease, and certain types of cancer. It has been also proven that obesity can have a negative effect on hair. It can lead to hair thinning. Patients with obesity can undergo bariatric surgery if they meet the inclusion criteria. The four common types of weight loss surgery include a duodenal switch with biliopancreatic diversion, laparoscopic adjustable gastric banding, Roux-en-Y gastric bypass, and sleeve gastrectomy. Bariatric surgery can affect skin and hair and is associated with telogen effluvium due to weight loss, microelement deficiency, anesthesia, low calorie intake, and low protein intake. Patients who undergo bariatric surgery can experience post-bariatric surgery depression. Hair loss can have a major impact on self-esteem, negatively affecting one's self-image. The purpose of this narrative review is to critically review how obesity, obesity-related diseases, and bariatric surgery affect hair health in general and the hair development cycle, and how they influence hair loss.


Assuntos
Alopecia em Áreas , Cirurgia Bariátrica , Diabetes Mellitus Tipo 2 , Derivação Gástrica , Laparoscopia , Obesidade Mórbida , Adulto , Humanos , Obesidade Mórbida/cirurgia , Diabetes Mellitus Tipo 2/etiologia , Laparoscopia/métodos , Obesidade/complicações , Obesidade/cirurgia , Cirurgia Bariátrica/efeitos adversos , Cirurgia Bariátrica/métodos , Derivação Gástrica/métodos , Alopecia em Áreas/etiologia , Alopecia em Áreas/cirurgia , Cabelo
2.
Gynecol Endocrinol ; 39(1): 2216313, 2023 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-37224872

RESUMO

BACKGROUND: Neurokinin B (NKB) belongs to the tachykinin family of proteins who's regulation is essential for proper function of the reproductive system. It has been shown that patients with functional hypothalamic amenorrhea (FHA) exhibit decreased levels of serum kisspeptin. As kisspeptin secretion is regulated by NKB signaling, it is reasonable to suspect that patients with FHA will also have abnormal NKB secretion. AIM: To assess NKB levels in patients with FHA and to determine whether NKB signaling is affected in these patients. We hypothesized that decreased NKB signaling is a factor contributing to the development of the FHA. MATERIALS AND METHODS: A total of 147 patients with FHA and 88 healthy age-matched controls were enrolled. Baseline blood samples were drawn from both groups to measure serum concentrations of NKB, luteinizing hormone (LH), follicle-stimulating hormone (FSH), estradiol (E2), prolactin (PRL), thyroid-stimulating hormone (TSH), free thyroxine (fT4), cortisol, dehydroepiandrosterone sulfate (DHEA-S), testosterone (T), glucose, and insulin. RESULTS: Mean serum NKB levels were found to be decreased significantly in the FHA group when compared with the control group (628.35 ± 324.92 vs. 721.41 ± 337.57 ng/L, respectively p = 0.002). No statistical difference was observed in NKB-1 levels within the FHA group when selecting for normal and decreased body mass index. CONCLUSIONS: Patients with FHA were found to have decreased serum NKB concentrations when compared to healthy controls. Abnormal NKB secretion is likely a key factor contributing to development of FHA.


Assuntos
Amenorreia , Neurocinina B , Feminino , Humanos , Amenorreia/etiologia , Kisspeptinas , Fatores de Risco , Estradiol
3.
Int J Mol Sci ; 24(7)2023 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-37047811

RESUMO

The bony skeleton, as a structural foundation for the human body, is essential in providing mechanical function and movement. The human skeleton is a highly specialized and dynamic organ that undergoes continuous remodeling as it adapts to the demands of its environment. Advances in research over the last decade have shone light on the various hormones that influence this process, modulating the metabolism and structural integrity of bone. More recently, novel and non-traditional functions of hypothalamic, pituitary, and adipose hormones and their effects on bone homeostasis have been proposed. This review highlights recent work on physiological bone remodeling and discusses our knowledge, as it currently stands, on the systemic interplay of factors regulating this interaction. In this review, we provide a summary of the literature on the relationship between bone physiology and hormones including kisspeptin, neuropeptide Y, follicle-stimulating hormone (FSH), prolactin (PRL), adrenocorticotropic hormone (ACTH), thyroid-stimulating hormone (TSH), growth hormone (GH), leptin, and adiponectin. The discovery and understanding of this new functionality unveils an entirely new layer of physiologic circuitry.


Assuntos
Hipotálamo , Hipófise , Humanos , Hipófise/metabolismo , Hipotálamo/metabolismo , Hormônio do Crescimento/metabolismo , Prolactina/metabolismo , Tireotropina/metabolismo , Tecido Adiposo/metabolismo
4.
Hum Mol Genet ; 29(14): 2435-2450, 2020 08 11.
Artigo em Inglês | MEDLINE | ID: mdl-32620954

RESUMO

Dysfunction of the gonadotropin-releasing hormone (GnRH) axis causes a range of reproductive phenotypes resulting from defects in the specification, migration and/or function of GnRH neurons. To identify additional molecular components of this system, we initiated a systematic genetic interrogation of families with isolated GnRH deficiency (IGD). Here, we report 13 families (12 autosomal dominant and one autosomal recessive) with an anosmic form of IGD (Kallmann syndrome) with loss-of-function mutations in TCF12, a locus also known to cause syndromic and non-syndromic craniosynostosis. We show that loss of tcf12 in zebrafish larvae perturbs GnRH neuronal patterning with concomitant attenuation of the orthologous expression of tcf3a/b, encoding a binding partner of TCF12, and stub1, a gene that is both mutated in other syndromic forms of IGD and maps to a TCF12 affinity network. Finally, we report that restored STUB1 mRNA rescues loss of tcf12 in vivo. Our data extend the mutational landscape of IGD, highlight the genetic links between craniofacial patterning and GnRH dysfunction and begin to assemble the functional network that regulates the development of the GnRH axis.


Assuntos
Fatores de Transcrição Hélice-Alça-Hélice Básicos/genética , Hormônio Liberador de Gonadotropina/genética , Síndrome de Kallmann/genética , Ubiquitina-Proteína Ligases/genética , Proteínas de Peixe-Zebra/genética , Adulto , Idoso , Animais , Modelos Animais de Doenças , Feminino , Genes Dominantes/genética , Hormônio Liberador de Gonadotropina/deficiência , Haploinsuficiência/genética , Humanos , Síndrome de Kallmann/patologia , Masculino , Pessoa de Meia-Idade , Mutação/genética , Neurônios/metabolismo , Neurônios/patologia , Fenótipo , Peixe-Zebra/genética
5.
Gynecol Endocrinol ; 38(11): 997-1002, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36170883

RESUMO

Background: Functional hypothalamic amenorrhea (FHA) is a chronic endocrine disorder caused by the abnormal pulsatile secretion of neurohormones in the hypothalamus. Secretion of GnRH is regulated by kisspeptin/neurokinin B/dynorphin (KNDy) neurons. These neurons produce, among other neurohormones, neurokinin B (NKB) which regulates the coordinated stimulation or inhibition of GnRH secreting neurons. Aim of the study: Assessment and comparison of serum NKB in patients with FHA at baseline, and following 6 months of estrogen-progestagen therapy. Materials and methods: Fifty-five patients with functional hypothalamic amenorrhea were included in the study group. Serum concentrations of neurokinin B (NKB), follicle stimulating hormone (FSH), luteinizing hormone (LH), 17-ß-estradiol (E2), prolactin (PRL), cortisol, testosterone (T), dehydroepiandrosterone sulfate (DHEA-S), thyroid-stimulating hormone (TSH), free thyroxine (fT4), fasting glucose and insulin, as well as lipid profile were measured at baseline. At the time of diagnosis, patients with FHA were prescribed a course of 2 mg 17-ß-estradiol and 10 mg dydrogesterone for duration of 6 months. Serum NKB was then reassessed following treatment at 6 months. Results: At baseline, the FHA group was found to have a decreased serum NKB concentration when compared to a healthy control group. Following 6 months of sequential estrogen-progestogen hormone therapy, this study did not find any statistically significant difference in serum NKB concentration in the treatment arm compared to baseline. Conclusions: For the first time, NKB secretion has been studied in patients with FHA. A significantly lower level of serum NKB was observed in these patients at baseline, when compared to a control group. After 6 months of combination estrogen-progesterone therapy, no significant changes in NKB levels were observed in these patients. These findings, for the first time in the literature, provide insight into the perceived benefit of HRT, calling into question its benefit in addressing the underlying etiopathogenetic contributors of FHA. These new findings may contribute to more targeted and appropriate treatment of such patients in the future.


Assuntos
Neurocinina B , Progestinas , Feminino , Humanos , Progestinas/uso terapêutico , Amenorreia , Hormônio Liberador de Gonadotropina , Estrogênios , Estradiol , Neurotransmissores , Kisspeptinas
6.
Gynecol Endocrinol ; 38(11): 992-996, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36150403

RESUMO

OBJECTIVE: Nesfatin-1 plays an important role in regulating metabolism, appetite, gut motility, and eating behavior. It is suspected that abnormalities in nesfatin-1 secretion may be involved in the development of anorexia nervosa, and as such, this study aims to investigate the "circumstances of" nesfatin-1 in patients with functional hypothalamic amenorrhea (FHA). MATERIALS AND METHODS: One hundred and forty-seven patients with FHA were enrolled to the present study. A control group consisting of 88 healthy, age-matched subjects was used. Both study and control groups had blood samples drawn to establish baseline serum concentrations of luteinizing hormone, follicle-stimulating hormone, estradiol, prolactin, thyroid-stimulating hormone, fT4, morning cortisol, dehydroepiandrosterone sulfate, testosterone, glucose, and insulin. Nesfatin-1 was also measured with the use of enzyme-linked immunosorbent assay. RESULTS: Patients with FHA were found to have a significantly decreased concentration of serum nesfatin-1 when compared to healthy controls (6.21 ± 4.79 vs. 8.64 ± 6.63 respectively, p = 0.005). No statistically significant difference in nesfatin-1 levels was found between patients with normal and decreased BMI in the FHA group. Significant positive correlation was observed between serum nesfatin-1 concentration and 17-ß-estradiol, while a significant negative correlation was observed between serum nesfatin-1 concentration and patient age, fasting glucose, and HDL levels. CONCLUSIONS: This is the first known study to examine nesfatin-1 concentration in the context of clinical FHA. Patients with FHA were found to have decreased serum nesfatin-1 concentrations. This finding may prove instrumental in our future approach managing patients with FHA.


Assuntos
Amenorreia , Doenças Hipotalâmicas , Feminino , Humanos , Doenças Hipotalâmicas/complicações , Doenças Hipotalâmicas/diagnóstico , Hormônio Luteinizante , Estradiol , Glucose
7.
Gynecol Endocrinol ; 38(7): 537-542, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35647677

RESUMO

About 5% of all ovarian tumors develop some form of hormonal activity. Only 1% of ovarian tumors will secrete androgens causing clinical hyperandrogenism. Most androgen-secreting neoplasms (ASN) derive from sex cord or stroma cells of the ovary and may affect both premenopausal and postmenopausal women. Typically, a patient will present reporting symptoms of rapidly increasing hyperandrogenization such as: hirsutism, acne, frontal/male pattern balding, and in severe cases even virilization. Sertoli-Leydig Cell Tumors are the most frequent ASN and constitute about 0.5% of all ovarian neoplasms. Typically affecting women under 30 years of age, these tumors are usually unilateral and benign. They are also the most common tumor in postmenopausal women suffering with hyperandrogenism. Other tumors originating from the sex-cord stroma are also known to develop in this population, but the incidence of these is much lower. Approaching suspected hyperandrogenemia and its related symptoms in a clinical setting can be a significant diagnostic challenge. When evaluating a patient for hyperandrogenism, it is important to assess the severity of symptoms but most of all it is critical to assess the time of onset and dynamics of symptom progression. Diagnostic tools including laboratory tests and imaging studies should also be engaged. When deriving a differential diagnosis for androgen-secreting ovarian tumors, adrenal gland tumors should be considered as well as typical endocrine pathologies including polycystic ovary syndrome, congenital adrenal hyperplasia, Cushing's disease, and acromegaly. Treatment options for an androgen-secreting ovarian tumors is mainly surgical, but in exceptional cases can involve pharmacotherapy alone.


Assuntos
Hiperandrogenismo , Neoplasias Ovarianas , Síndrome do Ovário Policístico , Tumor de Células de Sertoli-Leydig , Androgênios , Feminino , Hirsutismo/etiologia , Hirsutismo/terapia , Humanos , Hiperandrogenismo/diagnóstico , Hiperandrogenismo/etiologia , Masculino , Neoplasias Ovarianas/complicações , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/terapia , Síndrome do Ovário Policístico/complicações , Tumor de Células de Sertoli-Leydig/complicações
8.
Gynecol Endocrinol ; 38(2): 186-189, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34730073

RESUMO

AIM: To present a case report of a patient with classic galactosemia and the Q188R/K285N GALT mutation, who conceived spontaneously twice despite severe ovarian failure. A review of the literature is included. MATERIALS AND METHODS: A 20-year-old patient with classic galactosemia and premature ovarian insufficiency (POI) came to our attention. We performed a routine hormonal and ultrasound examination confirming low ovarian reserve. Due to low rates of pregnancies in individuals with POI (5%-10%), we were almost certain of the infeasibility of pregnancy. RESULTS: Surprisingly, several months after hospitalization, the patient conceived without any medical intervention and less than a year after the first birth she became pregnant again. While reviewing the literature, 90 pregnancies among galactosemic patients were identified. CONCLUSIONS: Ovarian failure is a long-term diet-independent complication of classic galactosemia, pertaining to about 90% of affected individuals. This case confirms its unpredicted course, as even the presence of unfavorable factors (absence of spontaneous puberty, early diagnosis of POI, undetectable AMH) may not preclude the chance for conception.


Assuntos
Galactosemias , Menopausa Precoce , Reserva Ovariana , Insuficiência Ovariana Primária , Adulto , Feminino , Galactosemias/complicações , Galactosemias/diagnóstico , Galactosemias/genética , Humanos , Gravidez , Insuficiência Ovariana Primária/complicações , Insuficiência Ovariana Primária/diagnóstico , Ultrassonografia , Adulto Jovem
9.
Gynecol Endocrinol ; 38(1): 28-32, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34044669

RESUMO

OBJECTIVE: The main aim of this prospective study was to investigate the relationship between intrafollicular vitamin D and anti-Müllerian hormone (AMH) concentration and its impact on oocyte quality and developmental competence. METHODS: The analysis was performed on 208 follicular fluid (FF) samples obtained from 33 patients undergoing ovarian stimulation as part of in vitro fertilization (IVF) treatment that included intracytoplasmic sperm injection. RESULTS: Our study shows that vitamin D concentration in FF varies according to the developmental stage of the oocyte and corelates with embryo development status on day 3, while AMH concentration in FF is not correlated with the developmental potential of an oocyte. We demonstrated that the levels of vitamin D and AMH were higher in FF than in serum. Moreover we showed that AMH and vitamin D levels were positively correlated in FF but not in serum. CONCLUSION: FF-AMH levels do not appear to be a suitable as noninvasive test of the developmental potential of an oocyte, while FF-vitamin D level can be used to evaluate whether embryos obtained from particular oocytes have potential of reaching the third day of culture. However, our results encourage further research to be carried out on a larger number of patients and testing additional components found in FF such as androgens.


Assuntos
Hormônio Antimülleriano/análise , Líquido Folicular/química , Oócitos/crescimento & desenvolvimento , Vitamina D/análise , Desenvolvimento Embrionário/fisiologia , Feminino , Fertilização in vitro , Humanos , Oócitos/fisiologia , Indução da Ovulação , Estudos Prospectivos , Injeções de Esperma Intracitoplásmicas
10.
Gynecol Endocrinol ; 37(12): 1143-1150, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34387530

RESUMO

BACKGROUND: Hyperthyroidism is a state characterized by elevated serum level of thyroid hormones: thyroxine (T4) and triiodothyronine (T3). This is mainly related to the condition and functioning of the thyroid gland. In 60-80% of cases elevation of these hormones are caused by Grave's disease. Thyrotoxicosis is an extreme presentation of hyperthyroidism which can, in rare cases, be caused by excessive synthesis of thyroxine by tumor cells. Struma ovarii is a rare ovarian teratoma composed of thyroid tissue in more than 50%. OBJECTIVE AND METHOD: To present a case of a 30-year-old female patient with a past history of Grave's disease treated by strumectomy 7 years prior; now presenting for the assessment of secondary amenorrhea. Pelvic ultrasound revealed bilateral solid tumors on the left and right ovary, respectively measuring 5 cm and 6 cm in diameter. Her clinical presentation was suggestive of overt hyperthyroidism, and she presented with a significantly elevated CA-125 (152.7 U/mL). RESULTS: The patient subsequently underwent a bilateral oophorectomy in which both masses were excised and histopathological examination confirmed teratoma maturum cysticum. Struma ovarii was noted as a component of the left ovary teratoma. CONCLUSION: Establishing a proper diagnosis of hyperthyroidism and elucidating its origin is often challenging. Struma ovarii is a rare cause of hyperthyroidism but should always be considered in case of treatment resistant hyperthyroidism. This case-report lends itself as an example of the value in maintaining gynecological-endocrinological knowledge in the setting if clinical gynecology.


Assuntos
Hipertireoidismo/etiologia , Neoplasias Ovarianas/complicações , Estruma Ovariano/complicações , Adulto , Feminino , Humanos , Neoplasias Ovarianas/diagnóstico por imagem , Neoplasias Ovarianas/patologia , Ovário/patologia , Estruma Ovariano/diagnóstico por imagem , Estruma Ovariano/patologia , Ultrassonografia
11.
Gynecol Endocrinol ; 37(8): 677-682, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33759685

RESUMO

Hyperthecosis is defined as the presence of nests of luteinized theca cells in the ovarian stroma. Persistent testosterone released by ovarian theca cells is unmasked postmenopausally through the loss of granulosa cell-mediated aromatization of testosterone to estradiol. Ovarian hyperthecosis (OH) usually presents with symptoms of hyperandrogenism and is often described as a severe or extreme form of Polycystic Ovary Syndrome (PCOS). Serum testosterone levels in excess of 150 ng/dl (>5.2 nmol/l) are seen in affected patients and this threshold is used to confirm a diagnosis. Treatment of hyperthecosis is multi-faceted. It addresses the attendant hyperandrogenism (hirsutism and virilization) as well as metabolic complications such as obesity and insulin resistance. Ultimately, laparoscopic bilateral salpingo-oophorectomy is definitive treatment. This remains the treatment of choice in postmenopausal women whereas treatment using GnRH agonists may be used in women of reproductive age, especially younger women. Nevertheless, if serum testosterone remains elevated despite several months of therapy with a GnRH agonist, surgery is often required for biopsy sample collection and further definitive therapy. In order to mitigate the common clinical manifestations of hyperandrogenism, anti-androgen therapy (either cyproterone acetate or spironolactone) may be used to suppress the actions of testosterone on tissues. In patients with impaired glucose metabolism and insulin resistance, Metformin should also be considered as part of treatment. Combined, such a treatment regimen will often lead to decreased ovarian androgen secretion.


Assuntos
Hiperandrogenismo/etiologia , Doenças Ovarianas/complicações , Ovário/patologia , Células Estromais/patologia , Diagnóstico Diferencial , Feminino , Humanos , Hiperandrogenismo/diagnóstico , Hiperplasia/complicações , Hiperplasia/diagnóstico , Hiperplasia/terapia , Imageamento por Ressonância Magnética , Doenças Ovarianas/diagnóstico , Doenças Ovarianas/patologia , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/diagnóstico , Testosterona/sangue , Ultrassonografia
12.
Gynecol Endocrinol ; 37(6): 572-575, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33960260

RESUMO

AIMS: The aims of the presented case report are to emphasize the importance of a proper diagnostics and treatment in the case of the coexistence of Klinefelter syndrome (KS, 47 XXY) and complete androgen insensitivity syndrome (CAIS). Since there is no causal treatment it is necessary to provide the patient with a good quality of life, including psychological and sexological support. MATERIALS AND METHODS: The presented case report is the retrospective analysis of the patient's medical history over the 3 years. RESULTS: At the age of 15, the patient was directed to genetic testing due to primary amenorrhea. The results of the patient showed an incorrect male karyotype with the SRY gene present (47, XXY). A molecular diagnostics revealed a very rare variant of the androgen receptor (AR) mutation responsible for tissue insensitivity to androgens. The detected mutation has not been described in the available databases so far. Following a diagnosis of the presence of Klinefelter syndrome (KS, 47 XXY) together with complete androgen insensitivity syndrome (CAIS), the patient underwent a bilateral gonadectomy. CONCLUSIONS: In women with KS and CAIS physiological reproduction and maintenance of normal sex, hormone levels are not possible. A gonadectomy is performed due to the risk of malignant testicular tumors.


Assuntos
Síndrome de Resistência a Andrógenos/diagnóstico , Síndrome de Klinefelter/diagnóstico , Adolescente , Amenorreia/diagnóstico , Amenorreia/etiologia , Amenorreia/genética , Amenorreia/cirurgia , Síndrome de Resistência a Andrógenos/complicações , Síndrome de Resistência a Andrógenos/genética , Síndrome de Resistência a Andrógenos/cirurgia , Castração , Feminino , Humanos , Cariotipagem , Síndrome de Klinefelter/complicações , Síndrome de Klinefelter/genética , Síndrome de Klinefelter/cirurgia , Masculino , Mutação , Receptores Androgênicos/genética , Estudos Retrospectivos , Proteína da Região Y Determinante do Sexo/genética , Testículo/cirurgia
13.
Int J Mol Sci ; 22(4)2021 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-33671616

RESUMO

Sexually transmitted infections (STIs) caused by Neisseria gonorrhoeae, Chlamydia trachomatis and Mycoplasma genitalium are a common cause of pelvic inflammatory disease (PID) which can lead to tubal factor infertility (TFI). TFI is one of the most common causes of infertility, accounting for 30% of female fertility problems. STIs can also have an impact on pregnancy, leading to adverse pregnancy outcomes. Escalating antibiotic resistance in Neisseria gonorrhoeae and Mycoplasma genitalium represents a significant problem and can be therapeutically challenging. We present a comprehensive review of the current treatment options, as well as the molecular approach to this subject. We have given special attention to molecular epidemiology, molecular diagnostics, current and new treatments, and drug resistance.


Assuntos
Farmacorresistência Bacteriana/efeitos dos fármacos , Infertilidade Feminina/microbiologia , Complicações Infecciosas na Gravidez/etiologia , Doenças Bacterianas Sexualmente Transmissíveis/complicações , Doenças Bacterianas Sexualmente Transmissíveis/tratamento farmacológico , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Infecções por Chlamydia/tratamento farmacológico , Infecções por Chlamydia/etiologia , Infecções por Chlamydia/microbiologia , Tubas Uterinas/microbiologia , Tubas Uterinas/patologia , Feminino , Gonorreia/tratamento farmacológico , Gonorreia/etiologia , Humanos , Técnicas de Diagnóstico Molecular , Epidemiologia Molecular/métodos , Infecções por Mycoplasma/tratamento farmacológico , Infecções por Mycoplasma/etiologia , Mycoplasma genitalium/patogenicidade , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/epidemiologia , Doenças Bacterianas Sexualmente Transmissíveis/diagnóstico , Doenças Bacterianas Sexualmente Transmissíveis/epidemiologia
14.
Int J Mol Sci ; 22(5)2021 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-33807517

RESUMO

Premature ovarian insufficiency (POI), previously known as premature ovarian failure or premature menopause, is defined as loss of ovarian function before the age of 40 years. The risk of POI before the age of 40 is 1%. Clinical symptoms develop as a result of estrogen deficiency and may include amenorrhea, oligomenorrhea, vasomotor instability (hot flushes, night sweats), sleep disturbances, vulvovaginal atrophy, altered urinary frequency, dyspareunia, low libido, and lack of energy. Most causes of POI remain undefined, however, it is estimated that anywhere from 4-30% of cases are autoimmune in origin. As the ovaries are a common target for autoimmune attacks, an autoimmune etiology of POI should always be considered, especially in the presence of anti-oocyte antibodies (AOAs), autoimmune diseases, or lymphocytic oophoritis in biopsy. POI can occur in isolation, but is often associated with other autoimmune conditions. Concordant thyroid disorders such as hypothyroidism, Hashimoto thyroiditis, and Grave's disease are most commonly seen. Adrenal autoimmune disorders are the second most common disorders associated with POI. Among women with diabetes mellitus, POI develops in roughly 2.5%. Additionally, autoimmune-related POI can also present as part of autoimmune polyglandular syndrome (APS), a condition in which autoimmune activity causes specific endocrine organ damage. In its most common presentation (type-3), APS is associated with Hashomoto's type thyroid antibodies and has a prevalence of 10-40%. 21OH-Antibodies in Addison's disease (AD) can develop in association to APS-2.


Assuntos
Doenças Autoimunes/patologia , Ovário/patologia , Insuficiência Ovariana Primária/patologia , Amenorreia/imunologia , Amenorreia/patologia , Autoanticorpos/imunologia , Doenças Autoimunes/imunologia , Feminino , Doença de Hashimoto/imunologia , Doença de Hashimoto/patologia , Humanos , Menopausa Precoce/imunologia , Ovário/imunologia , Poliendocrinopatias Autoimunes/imunologia , Poliendocrinopatias Autoimunes/patologia , Insuficiência Ovariana Primária/imunologia
15.
Int J Mol Sci ; 22(24)2021 Dec 08.
Artigo em Inglês | MEDLINE | ID: mdl-34948037

RESUMO

The pituitary is an organ of dual provenance: the anterior lobe is epithelial in origin, whereas the posterior lobe derives from the neural ectoderm. The pituitary gland is a pivotal element of the axis regulating reproductive function in mammals. It collects signals from the hypothalamus, and by secreting gonadotropins (FSH and LH) it stimulates the ovary into cyclic activity resulting in a menstrual cycle and in ovulation. Pituitary organogenesis is comprised of three main stages controlled by different signaling molecules: first, the initiation of pituitary organogenesis and subsequent formation of Rathke's pouch; second, the migration of Rathke's pouch cells and their proliferation; and third, lineage determination and cellular differentiation. Any disruption of this sequence, e.g., gene mutation, can lead to numerous developmental disorders. Gene mutations contributing to disordered pituitary development can themselves be classified: mutations affecting transcriptional determinants of pituitary development, mutations related to gonadotropin deficiency, mutations concerning the beta subunit of FSH and LH, and mutations in the DAX-1 gene as a cause of adrenal hypoplasia and disturbed responsiveness of the pituitary to GnRH. All these mutations lead to disruption in the hypothalamic-pituitary-ovarian axis and contribute to the development of primary amenorrhea.


Assuntos
Predisposição Genética para Doença/genética , Hipogonadismo/genética , Mutação , Receptor Nuclear Órfão DAX-1/genética , Subunidade beta do Hormônio Folículoestimulante/genética , Humanos , Hormônio Luteinizante Subunidade beta/genética
16.
Int J Mol Sci ; 22(7)2021 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-33917519

RESUMO

Polycystic ovary syndrome (PCOS) is a one of the most common endocrine disorders, with a prevalence rate of 5-10% in reproductive aged women. It's characterized by (1) chronic anovulation, (2) biochemical and/or clinical hyperandrogenism, and (3) polycystic ovarian morphology. PCOS has significant clinical implications and can lead to health problems related to the accumulation of adipose tissue, such as obesity, insulin resistance, metabolic syndrome, and type 2 diabetes. There is also evidence that PCOS patients are at higher risk of cardiovascular diseases, atherosclerosis, and high blood pressure. Several studies have reported the association between polycystic ovary syndrome (PCOS) and low-grade chronic inflammation. According to known data, inflammatory markers or their gene markers are higher in PCOS patients. Correlations have been found between increased levels of C-reactive protein (CRP), interleukin 18 (IL-18), tumor necrosis factor (TNF-α), interleukin 6 (IL-6), white blood cell count (WBC), monocyte chemoattractant protein-1 (MCP-1) and macrophage inflammatory protein-1α (MIP-1α) in the PCOS women compared with age- and BMI-matched controls. Women with PCOS present also elevated levels of AGEs and increased RAGE (receptor for advanced glycation end products) expression. This chronic inflammatory state is aggravating by obesity and hyperinsulinemia. There are studies describing mutual impact of hyperinsulinemia and obesity, hyperandrogenism, and inflammatory state. Endothelial cell dysfunction may be also triggered by inflammatory cytokines. Many factors involved in oxidative stress, inflammation, and thrombosis were proposed as cardiovascular risk markers showing the endothelial cell damage in PCOS. Those markers include asymmetric dimethylarginine (ADMA), C-reactive protein (CRP), homocysteine, plasminogen activator inhibitor-I (PAI-I), PAI-I activity, vascular endothelial growth factor (VEGF) etc. It was also proposed that the uterine hyperinflammatory state in polycystic ovary syndrome may be responsible for significant pregnancy complications ranging from miscarriage to placental insufficiency. In this review, we discuss the most importance evidence concerning the role of the process of chronic inflammation in pathogenesis of PCOS.


Assuntos
Síndrome do Ovário Policístico/metabolismo , Envelhecimento/metabolismo , Envelhecimento/patologia , Proteína C-Reativa/metabolismo , Doença Crônica , Citocinas/metabolismo , Complicações do Diabetes/metabolismo , Complicações do Diabetes/patologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/patologia , Células Endoteliais/metabolismo , Células Endoteliais/patologia , Feminino , Humanos , Inflamação/metabolismo , Inflamação/patologia , Síndrome Metabólica/metabolismo , Síndrome Metabólica/patologia , Obesidade/complicações , Obesidade/metabolismo , Obesidade/patologia , Síndrome do Ovário Policístico/etiologia , Síndrome do Ovário Policístico/patologia
17.
Gynecol Endocrinol ; 36(11): 959-967, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32172637

RESUMO

In vitro fertilization can be considered as causative factor of increasing rate of multiple pregnancies. Analysis of factors contributing to reduction in the percentage of multiple pregnancies may contribute to overall improvement of ART results. We compared annual reports from The Australian and New Zealand Assisted Reproduction Database and US National Summary Reports presented by The Centers for Disease Control and Prevention. The aim of this study was to analyze results of ART outcomes in two countries presenting opposite approach to ART, particularly to number of transferred embryos and number of eSETs (elective single embryo transfers). We found significant increase in total number of initiated cycles and transfers with significant shift toward frozen cycles and transfers in both countries. Percentage of eSET increased while average number of embryos transferred per one transfer decreased significantly in both countries without significant difference between countries. We also noticed significant decrease in the rate of multiple pregnancies and percentage of pregnancies resulting in triplets in Australia with New Zealand. Decreasing number of multiple pregnancies and higher percentage of transfers and pregnancies resulting in singleton live birth are the changes in ART politics found in our analysis. United States of America have more significant changes toward eSET, although Australia and New Zealand have significantly higher percentage of eSET from the beginning of analysis.


Assuntos
Resultado da Gravidez/epidemiologia , Técnicas de Reprodução Assistida/estatística & dados numéricos , Adulto , Austrália/epidemiologia , Feminino , História do Século XXI , Humanos , Recém-Nascido , Nascido Vivo/epidemiologia , Masculino , Nova Zelândia/epidemiologia , Gravidez , Taxa de Gravidez/tendências , Gravidez Múltipla/estatística & dados numéricos , Técnicas de Reprodução Assistida/história , Técnicas de Reprodução Assistida/tendências , Transferência de Embrião Único/estatística & dados numéricos , Resultado do Tratamento , Estados Unidos/epidemiologia
18.
Gynecol Endocrinol ; 36(6): 564-566, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31858843

RESUMO

Cytogenetic examination may be useful in determining the reason for primary amenorrhea in phenotypically female patients. The result 46, XY usually indicates two syndromes: complete androgen insensitivity or pure gonadal dysgenesis. We report a case of a patient, who due to acute lymphoblastic leukemia in childhood was treated with total body irradiation and bone marrow transplantation. Later on the patient presented with symptoms typical for premature ovarian failure and male karyotype in peripheral lymphocytes. The cytogenetic examination for peripheral cells showed normal female karyotype. Therefore, it has been concluded that ovarian function impairment resulted rather from the gonadotoxic effect of oncological treatment than as a disorder of sexual differentiation. The survival rates of childhood cancer are very high and some of the patients will experience premature ovarian failure. It must be remembered that after bone marrow transplantation karyotype of peripheral lymphocytes may be misleading.


Assuntos
Amenorreia/etiologia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Transplante de Medula Óssea/efeitos adversos , Transtorno 46,XY do Desenvolvimento Sexual/diagnóstico , Insuficiência Ovariana Primária/etiologia , Amenorreia/diagnóstico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Sobreviventes de Câncer , Criança , Diagnóstico Diferencial , Transtorno 46,XY do Desenvolvimento Sexual/etiologia , Feminino , Humanos , Cariótipo , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Insuficiência Ovariana Primária/induzido quimicamente , Insuficiência Ovariana Primária/diagnóstico , Adulto Jovem
19.
Gynecol Endocrinol ; 36(4): 289-293, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32103691

RESUMO

This review updates the knowledge regarding the association between the polycystic ovary syndrome (PCOS) and the risk of gynecological cancer. We performed a literature review of clinical and epidemiological studies concerning PCOS and the risk of breast, endometrial and ovarian cancer after selecting information by quality of scientific methodology. It was found that evidence does not support a link between PCOS and breast cancer risk. There is an increased risk of endometrial cancer, while data concerning ovarian cancer are contradictory. Regarding PCOS and its association to cervical, fallopian tube, and vulvar cancer, the quality of evidence is heterogeneous. In conclusion, women with PCOS should be screened for endometrial cancer and more research is warranted to determine in this population the true risk of developing other gynecological cancers such as breast and ovarian.


Assuntos
Neoplasias da Mama/etiologia , Neoplasias dos Genitais Femininos/etiologia , Síndrome do Ovário Policístico/complicações , Neoplasias da Mama/epidemiologia , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/etiologia , Feminino , Neoplasias dos Genitais Femininos/epidemiologia , Humanos , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/etiologia , Síndrome do Ovário Policístico/epidemiologia , Fatores de Risco
20.
Gynecol Endocrinol ; 36(4): 303-307, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31718336

RESUMO

Approximately, 5% of ovarian tumors have hormonal activity. Steroid cell tumors (SCTs) represent about 0.1% of all ovarian tumors. They cause hyperandrogenism associated with typical virilization. In this case report, we present 45-year-old women with unmalignant ovarian SCT-producing androgens which cause severe virilization and secondary amenorrhea lasting two years. Transvaginal ultrasound, computed tomography of adrenal glands, magnetic resonance imaging of small pelvis, laboratory tests (including serum concentration of FSH, LH, testosterone (T), androstenedione (A), dehydroepiandrosterone sulfate (DHEA-S), as well as ROMA index) were performed. During hormonal evaluation, elevated concentrations of serum T - on admission 1.72 ng/ml and one month later 3.75 ng/ml (normal range 0.08-0.82 ng/ml) and A - 24.90 ng/ml (normal range 0.40-3.40 ng/ml) were found. The ROMA index was within the normal range. Enlargement of the left ovary by solid mass 56 × 43 mm was found during ultrasound examination. Based on small pelvis MRI scan and hormonal finding, patient was qualified for laparotomy. During this procedure, the left salpingo-oophorectomy with removal of the tumor was performed. The histopathological examination identified SCT. During follow-up examination, one day after surgery, we found serum testosterone levels within normal ranges - 0.74 ng/ml (normal range 0.08-0.82 ng/ml). This case shows that hormone-producing ovarian tumors are rare but very important clinical causes of severe hyperandrogenism.


Assuntos
Hiperandrogenismo/etiologia , Neoplasias Ovarianas/complicações , Tumores do Estroma Gonadal e dos Cordões Sexuais/complicações , Feminino , Humanos , Hiperandrogenismo/diagnóstico , Hiperandrogenismo/patologia , Hiperandrogenismo/cirurgia , Pessoa de Meia-Idade , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/cirurgia , Índice de Gravidade de Doença , Tumores do Estroma Gonadal e dos Cordões Sexuais/diagnóstico , Tumores do Estroma Gonadal e dos Cordões Sexuais/cirurgia
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