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1.
J Clin Med ; 13(3)2024 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-38337479

RESUMO

A complete gonadal dysgenesis (CGD) with 46,XY karyotype is known as the Swyer syndrome and belongs to the group of 46,XY differences of sex development (DSD). The main problem in patients with Swyer syndrome is the delayed puberty and primary amenorrhea. Moreover, intrabdominal dysgenetic gonads in the patient with genetic material of a Y chromosome may conduce to the development of gonadal tumors, such as gonadoblastoma or germinoma. The management of such patients is based on preventive excision of dysgenetic gonads and long-term hormonal replacement therapy. Sporadic cases are considered more common than familial cases. This paper presents two siblings with Swyer syndrome in whom gonadoblastoma was found. A thorough review of familial CGD with 46,XY DSD in the literature from the last 15 years suggests that the risk of gonadal tumors could be increased in familial compared to sporadic cases (66.6% vs. 15-45%, respectively).

2.
Int J Mol Sci ; 23(8)2022 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-35457013

RESUMO

Obesity is a growing epidemiological problem, as two-thirds of the adult population are carrying excess weight. It is a risk factor for the development of cardiovascular diseases (hypertension, ischemic heart disease, myocardial infarct, and atrial fibrillation). It has also been shown that chronic obesity in people may be a cause for the development of heart failure with preserved ejection fraction (HFpEF), whose components include cellular hypertrophy, left ventricular diastolic dysfunction, and increased extracellular collagen deposition. Several animal models with induced obesity, via the administration of a high-fat diet, also developed increased heart fibrosis as a result of extracellular collagen accumulation. Excessive collagen deposition in the extracellular matrix (ECM) in the course of obesity may increase the stiffness of the myocardium and thereby deteriorate the heart diastolic function and facilitate the occurrence of HFpEF. In this review, we include a rationale for that process, including a discussion about possible putative factors (such as increased renin-angiotensin-aldosterone activity, sympathetic overdrive, hemodynamic alterations, hypoadiponectinemia, hyperleptinemia, and concomitant heart diseases). To address the topic clearly, we include a description of the fundamentals of ECM turnover, as well as a summary of studies assessing collagen deposition in obese individuals.


Assuntos
Insuficiência Cardíaca , Animais , Colágeno , Matriz Extracelular/patologia , Fibrose , Humanos , Miocárdio/patologia , Obesidade/complicações , Obesidade/patologia , Volume Sistólico , Remodelação Ventricular/fisiologia
3.
J Clin Med ; 11(7)2022 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-35407635

RESUMO

Premature ovarian insufficiency (POI) is defined as a cessation of ovarian function before the age of 40. Such early deprivation of estrogens in women may be associated with several adverse cardiovascular and metabolic consequences. The aim of this retrospective study was to investigate whether women with POI and a serum follicle-stimulating hormone (FSH) level of 25−40 I/U (Group A) have the same metabolic profile as women with POI and a serum FSH level of >40 I/U (Group B). One hundred twenty-three women were included in the study group (Group A; n = 41; Group B; n = 82). The control group comprised 77 healthy women with regular menstruation. In the age- and BMI-adjusted model, no differences were found between the groups with respect to total cholesterol, high-density lipoproteins, triglycerides, HOMA-IR, glucose, and insulin. The only significant difference was found in terms of low-density lipoprotein cholesterol (LDL-C). The highest serum concentration was found in Group B, the second highest was found in Group A, and the lowest was in the controls. In conclusion, changing the threshold of FSH required to establish a POI diagnosis may have an impact on the level of serum LDL-C.

4.
Exp Neurol ; 353: 114059, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35367456

RESUMO

Major Depressive Disorder (MDD) with Peripartum Onset was classified in 2013 by the Diagnostic and Statistical Manual, Fifth Edition (DMS-5) and approved in 2019 by the World Health Organization (WHO). These diagnostic revisions call for the development of new animal models of maternal depression, emphasizing the pregnancy period. We have recently described a novel rat model of maternal MDD with a Peripartum Onset. Exposure to pre-gestational chronic mild stress (CMS) with repeated restrain resulted in maternal depressive-like behavior and impacted offspring's neurodevelopment. The present study examined gender differences in short- vs. long-term neurodevelopmental impact of pre-gestational maternal stress. Stress response was assessed in Sprague Dawley CMS-exposed dams (n=7) by metabolic, hormonal, and behavioral changes and compared to controls dams (n=7). Short-term impact of maternal stress on offspring was examined in terms of metabolic, neurodevelopmental, and behavioral tests in male (n=40) and female (n=35) adolescent offspring on a postnatal day (PD) 48; the long-term impact was assessed in adult male (n=13) and female (n=12) offspring on PD 225. Brain tissue was collected from adolescent and adult offspring for biochemical analysis. Maternal stress was associated with decreased body weight and increased urinary corticosterone during the pre-pregnancy period, but depressive-like behavior was delayed until later in pregnancy. No significant neurodevelopmental changes in suckling male or female offspring derived from the stress-exposed dams were observed. However, adolescent male and female offspring of stress-exposed dams displayed an increased depressive-like behavior and gender-dependent increase in anxiety-like behavior in female offspring. These changes were associated with a brain-region-specific increase in brain-derived neurotrophic factor (BDNF) protein and BDNF receptor (TrkB) mRNA in males. Behavioral changes observed in the adolescents receded in adult male and female offspring. However, plasma BDNF was elevated in stress-exposed adult female offspring. These results suggest that pre-gestational maternal stress is associated with gender-dependent short- vs. long-term neurodevelopmental impact in the offspring. Presented data are of significant public health relevance, and there is an urgent need for further research to confirm these findings and probe the underlying mechanisms.


Assuntos
Transtorno Depressivo Maior , Efeitos Tardios da Exposição Pré-Natal , Adolescente , Animais , Ansiedade/genética , Comportamento Animal , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Depressão/etiologia , Transtorno Depressivo Maior/metabolismo , Feminino , Hipocampo/metabolismo , Humanos , Masculino , Gravidez , Efeitos Tardios da Exposição Pré-Natal/metabolismo , Ratos , Ratos Sprague-Dawley , Fatores Sexuais , Estresse Psicológico/complicações
5.
Artigo em Inglês | MEDLINE | ID: mdl-35206286

RESUMO

Research on proteins and peptides that play roles in metabolic regulation, which may be considered potential insulin resistance markers in some medical conditions, such as diabetes mellitus, obesity and polycystic ovarian syndrome (PCOS), has recently gained in interest. PCOS is a common endocrine disorder associated with hyperandrogenemia and failure of ovulation, which is often accompanied by metabolic abnormalities, including obesity, dyslipidemia, hyperinsulinemia, and insulin resistance. In this review, we focus on less commonly known peptides/proteins and investigate their role as potential biomarkers for insulin resistance in females affected by PCOS. We summarize studies comparing the serum fasting concentration of particular agents in PCOS individuals and healthy controls. Based on our analysis, we propose that, in the majority of studies, the levels of nesfastin-1, myonectin, omentin, neudesin were decreased in PCOS patients, while the levels of the other considered agents (e.g., preptin, gremlin-1, neuregulin-4, xenopsin-related peptide, xenin-25, and galectin-3) were increased. However, there also exist studies presenting contrary results; in particular, most data existing for lipocalin-2 are inconsistent. Therefore, further research is required to confirm those hypotheses, as well as to elucidate the involvement of these factors in PCOS-related metabolic complications.


Assuntos
Resistência à Insulina , Síndrome do Ovário Policístico , Biomarcadores , Jejum , Feminino , Humanos , Resistência à Insulina/fisiologia , Obesidade/complicações , Síndrome do Ovário Policístico/complicações
6.
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
7.
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
8.
Prz Menopauzalny ; 17(3): 105-108, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30357004

RESUMO

Premature ovarian insufficiency (POI) is defined as a cessation of ovarian function before the age of 40 years. It is associated with hypoestrogenism and loss of residual follicles, both of which lead to menstrual abnormalities, pregnancy failures, and decreased health-related quality of life. The prevalence of POI is estimated at 1% in the general population. Current European Society of Human Reproduction and Embryology (ESHRE) diagnostic criteria include: amenorrhoea or oligomenorrhoea for at least four months and increased follicle-stimulating hormone (FSH) levels > 25 IU/l measured twice (with a four-week interval). The aetiopathogenesis of the disease in most cases remains unexplained. Nevertheless, in some patients with POI, genetic abnormalities, metabolic disorders, autoimmunity, iatrogenic procedures, infections, or environmental factors have been established as underlying causes of the syndrome.

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