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Polycystic ovary syndrome (PCOS) is a disease affecting as many as about 10% of women of reproductive age, also 3-11% of teenage patients, and can lead to numerous complications and coexists with many diseases. Research is ongoing to establish an appropriate diagnostic and therapeutic path for adolescent girls with PCOS. It is also important to implement appropriate check-ups among teenagers with PCOS in order to prevent PCOS complications and initiate appropriate treatment as soon as possible and prevent the long-term consequences of these complications. The relationship between the co-occurrence of PCOS and diseases such as metabolic syndrome, hypertension, obesity, insulin resistance, type 2 diabetes and non-alcoholic fatty liver disease (NAFLD) is increasingly being investigated. A great attention is also being paid to the problem of mental health in this group of patients. In our study, we will review the latest reports on the treatment of PCOS and look at the complications that this syndrome can cause.

IntroductionThyroid dysfunctions are one of the most common abnormalities coexisting in children with Down’s syndrome (DS) and have been reported in up to 54% of cases.Aim of the StudyThe purposes of this retrospective study were to investigate the course of subclinical hypothyroidism in children with DS, to evaluate the thyroid function of these subjects in relation to the risk of developing overt thyroid disease and autoimmunity, and to identify clinical and biochemical characteristics of patients prescribed L-T4 therapy in children and adolescents with DS and SH.Material and MethodsThe records of DS patients referred to the Endocrinology Outpatient Clinic between 2010 and 2015 for screening of thyroid function were observed till the end of 2019 June and analyzed retrospectively. The children diagnosed with congenital hypothyroidism, acute lymphoblastic leukemia, and seizures and treated with drugs that may have interfered with thyroid function like lithium, antiepileptic, or iodinated drugs and glucocorticoids were excluded from the study.ResultsThe data of 77 DS patients were collected, evaluated, and analyzed. The study group consisted of 73 patients (32 girls and 41 boys with the mean age at baseline of 3.0 ± 4.5 years). A total of 63/73 (87%) children were diagnosed with SH. The 16/63 (25.4%) patients were followed-up without the treatment (group SH-T0), and therapy with levothyroxine (L-T4) was introduced in 47/63 (74.6%) SH children with a mean dosage of 1.8 ± 1.0 μg/kg/day (group SH-T1). Thyroxine supplementation did not improve growth expressed as ΔhSDS (0.1 ± 1.3, ranged −2.1 to 3.8 in SH-T0 vs. 0.0 ± 0.7, ranged −1.7 to 1.4 in SH-T1, p = 0.96) and ΔBMI Z-score (0.3 ± 0.9, ranged −0.9 to 2.6 in SH-T0 vs. 0.3 ± 1.1, ranged −2.1 to 2.9 in SH-T1, p = 0.65). Positive anti-TPO and anti-TG antibodies were detected in 7/63 (11.1%) DS cases.ConclusionsSH is the most frequent presentation of thyroid gland dysfunction in DS children. A small percentage of patients develop an overt hypothyroidism, particularly in females with mostly positive titer of antithyroid autoantibodies.