Publications by authors named "Terhi Piltonen"

Study Question: What is the health-related quality of life (HRQoL) at fertile and late fertile age in women with history of endometriosis?

Summary Answer: Women with endometriosis have lower HRQoL until late fertile age and depression, infertility, pain, and poor general health seem to contribute to this impairment, whereas BMI, education, smoking, parity, current use of contraceptives, and contact to tertiary care have positive association with HRQoL in this population.

What Is Known Already: Women with endometriosis are known to have decreased HRQoL at fertile age, however, studies concerning late fertile age and beyond are lacking.

Study Design, Size, Duration: This study utilized Northern Finland Birth Cohort 1966, which is a unique, population-based dataset comprising all expected births in 1966.

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Background: Polycystic ovary syndrome (PCOS) has diverse features. However, the name reflects only ovarian aspects, overlooking broader features. This study aimed to investigate international stakeholder perspectives on PCOS.

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Polycystic ovary syndrome (PCOS) is the most common endocrine disorder among women. Current international PCOS assessment and management guidelines recommend anti-Müllerian hormone (AMH) as an alternative to transvaginal ultrasound for assessing polycystic ovarian morphology, which is one of three criteria for diagnosing PCOS. This study assessed the economic impact of using the Elecsys® AMH Plus immunoassay (Roche Diagnostics International Ltd, Rotkreuz, Switzerland) for AMH testing in the United Kingdom health system to assess women with signs and symptoms of PCOS.

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Objective: To verify the anti-Müllerian hormone (AMH) cutoff (3.2 ng/mL) for the determination of polycystic ovarian morphology (PCOM) as part of the latest polycystic ovary syndrome (PCOS) diagnosis in an independent prospective cohort of women of reproductive age.

Design: A prospective, population-based, noninterventional study.

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Background: An evidence-based definition for the lower reference limit of serum prolactin (PRL) is lacking. We recently examined the European Male Ageing Study (EMAS) data and derive a threshold set at 3.0 ng/mL for hypoprolactinemia in men.

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Polycystic ovary syndrome (PCOS) is a common hyperandrogenic and metabolic condition in women. The syndrome is linked to subfertility and pregnancy complications, yet the independent effects of exposure to hyperandrogenism and obesity on endometrial function remain unclear. Here, PCOS-like mice were generated using prenatal androgenization (PNA) with dihydrotestosterone, followed by a prepubertal high-fat (HF) or standard diet.

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Background: Polycystic ovary syndrome (PCOS) is associated with obesity, insulin resistance (IR), metabolic syndrome (MetS), and abnormal fat distribution, especially fat excess in the upper body. Neck circumference (NC) reflects the adiposity accumulation in the upper body and may be a valuable and simple screening tool for metabolic risk among women with PCOS.

Methods: A systematic review was conducted using PubMed/Medline and Scopus based on the search terms "neck circumference" and "PCOS".

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Objective: To investigate the independent associations of hyperandrogenaemia (HA) and polycystic ovary syndrome (PCOS) with physical fitness in women among the general population.

Design: A population-based birth cohort study including 5889 women.

Methods: Longitudinal associations of serum testosterone (T), free androgen index (FAI), and PCOS with cardiorespiratory fitness (CRF) (measured by heart rate after a submaximal exercise test) and grip strength over the 31 to 46 years of age timespan were examined using multivariable linear mixed models adjusted for time, body mass index, homeostatic model assessment of insulin resistance, physical activity and smoking.

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Objective: To investigate whether increased prevalence of type 2 diabetes (T2DM) in women with polycystic ovary syndrome (PCOS) translates into increased risk of diabetic complications.

Design: A cohort study based on the nationwide Diabetes in Finland database. The main analysis included 1288 women with PCOS and T2DM and 177 555 women with T2DM without PCOS (controls).

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Introduction And Hypothesis: Overactive bladder (OAB) affects 11-17% of the female population. First-line treatment with lifestyle modifications and second-line therapy with medications are often limited by inadequate efficacy or pharmacological side effects. This study was aimed at assessing the effect of 100 U onabotulinumtoxin A treatment on idiopathic OAB (iOAB) as a second-line treatment.

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Objective: To study ferritin levels, and potential factors influencing them, in women with polycystic ovary syndrome (PCOS) and investigate potential associations between ferritin levels and other parameters in these women.

Design: Longitudinal general population-based cohort study, including data from both questionnaires and clinical measurements.

Subjects: The study was conducted with data from the participants of the Women's Health Study, including a total of 1,918 Finnish women aged approximately 35 years.

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Introduction: Within normal variation, higher hemoglobin (Hb) levels are associated with poorer metabolic profile in population cohorts, underlying the link between oxygen delivery and cell metabolism. Polycystic ovary syndrome (PCOS) is the most common endocrine disorder among women and is commonly accompanied by metabolic derangements. In this study we sought to investigate Hb levels, and their metabolic associations, in women with PCOS.

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(1) Background: Endometriosis is a highly prevalent gynecological disease affecting 10% of women of reproductive age worldwide. miRNAs may play a role in endometriosis, though their exact function remains unclear. This study aimed to identify differentially expressed miRNAs in endometriosis and study their functions in the disease.

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Introduction: Circadian rhythm disruption has been associated with the risk of polycystic ovary syndrome (PCOS), as the evening chronotype (EC) shares several traits with PCOS, including metabolic disorders, cardiovascular diseases, and psychiatric disorders. It has been suggested that the biological clock could be targeted with new, preventive, and therapeutic strategies for PCOS in women with biorhythm disorders. We evaluated inner circadian rhythmicity in middle-aged women with PCOS in a population-based setting, focusing on whether women with PCOS and an EC have a specific subtype in relation to their clinical characteristics.

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Article Synopsis
  • The study aimed to investigate the link between premenopausal hyperandrogenaemia (HA) and the risk of hypertension and cardiovascular diseases (CVDs) in a cohort of 5,889 women.
  • The findings showed that higher levels of testosterone and free androgen index were linked to increased blood pressure and a higher likelihood of hypertension at ages 31 and 46, as well as an increased risk of CVD events over 22 years, particularly before adjusting for body mass index (BMI).
  • Despite the initial associations, the significance of the results diminished when accounting for BMI, highlighting the need for further research with a more diverse population and longer follow-up to better understand these relationships.*
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Objective: To investigate eating behavior domains-emotional, uncontrolled, and cognitive restraint eating-in women with polycystic ovary syndrome (PCOS) with different PCOS phenotypes and women without PCOS at midlife.

Design: A prospective cohort study. Eating behavior domains were assessed at age of 46 years.

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Article Synopsis
  • The 2024 Australian evidence-based guideline offers recommendations for diagnosing and treating unexplained infertility in couples, tailored specifically for the Australian healthcare context and approved by national health authorities.
  • The guideline contains 40 evidence-based recommendations, addressing areas such as defining infertility, diagnosing various factors contributing to infertility, and treatment options, with a focus on improving patient care.
  • Key updates include a refined definition of unexplained infertility and a more comprehensive assessment process, integrating considerations of evidence quality, safety, and practicality for implementing these guidelines in Australia.
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Pericytes are versatile cells integral to the blood vessel walls of the microcirculation, where they exhibit specific stem cell traits. They are essential in modulating blood flow, ensuring vascular permeability, and maintaining homeostasis and are involved in the tissue repair process. The human endometrium is a unique and complex tissue that serves as a natural scar-free healing model with its cyclical repair and regeneration process every month.

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Polycystic ovary syndrome (PCOS) is a highly prevalent disorder in women that is commonly accompanied by metabolic syndrome. Activation of the hypoxia-inducible factor (HIF) pathway is known to alleviate metabolic defects. Hence, this study utilized a preclinical PCOS mouse model to investigate the effects of chemically induced HIF activation on the metabolic traits of PCOS.

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Stanniocalcin (STC) 1 and 2 serve as antihyperglycemic polypeptide hormones with critical roles in regulating calcium and phosphate homeostasis. They additionally function as paracrine and/or autocrine factors involved in numerous physiological processes, including female reproduction. STC1 and STC2 contribute to the pathophysiology of several diseases, including female infertility- and pregnancy-associated conditions, and even tumorigenesis of reproductive organs.

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It is not controversial to state that parental age is increasing in several countries. But how to deal with this increase might be. Some Nordic countries have set an upper age limit for females seeking assisted reproduction in their national legislation, but none have done so for males.

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