Tomi S. Mikkola

ORCID: 0000-0003-2049-088X
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About
Contact & Profiles
Research Areas
  • Menopause: Health Impacts and Treatments
  • Estrogen and related hormone effects
  • Pelvic floor disorders treatments
  • Hormonal and reproductive studies
  • Phytoestrogen effects and research
  • Anorectal Disease Treatments and Outcomes
  • Nitric Oxide and Endothelin Effects
  • Cancer Risks and Factors
  • Pregnancy and preeclampsia studies
  • Effects and risks of endocrine disrupting chemicals
  • Endometrial and Cervical Cancer Treatments
  • Research in Social Sciences
  • Maternal and fetal healthcare
  • Maternal and Perinatal Health Interventions
  • Pelvic and Acetabular Injuries
  • Menstrual Health and Disorders
  • Hernia repair and management
  • Heart Rate Variability and Autonomic Control
  • Sex and Gender in Healthcare
  • Cervical Cancer and HPV Research
  • Urinary Bladder and Prostate Research
  • Preterm Birth and Chorioamnionitis
  • Cardiovascular Issues in Pregnancy
  • Antioxidant Activity and Oxidative Stress
  • Pregnancy-related medical research

Helsinki University Hospital
2016-2025

University of Helsinki
2016-2025

Tampere University
2015-2023

Tampere University Hospital
2015-2023

Faculty (United Kingdom)
2022-2023

Folkhälsans Forskningscentrum
2013-2022

GTx (United States)
2019-2022

Danderyds sjukhus
2019

National Institutes of Health
2015-2016

Østfold Hospital Trust
2015

Cardiovascular risk is poorly managed in women, especially during the menopausal transition when susceptibility to cardiovascular events increases. Clear gender differences exist epidemiology, symptoms, diagnosis, progression, prognosis, and management of risk. Key factors that need be controlled peri-menopausal woman are hypertension, dyslipidaemia, obesity, other components metabolic syndrome, with avoidance careful control diabetes. Hypertension a particularly powerful factor lowering...

10.1093/eurheartj/ehm296 article EN European Heart Journal 2007-02-06

Introduction Sex-related physiological differences result in different expressions of diseases for men and women. Data are contradicting regarding the increase female risk cardiovascular disease (CVD) at mid-life. Thus, we studied possible sex age-adjusted mortality CVD non-vascular stratifying our findings by specific age groups. Methods Over one million deaths (1 080 910) reported to Finnish nationwide Causes Death Register 1986–2009 were analyzed. A total 247 942 male 278 752 origin,...

10.1371/journal.pone.0063347 article EN cc-by PLoS ONE 2013-05-20

To compare the use of hormone therapy between Finnish postmenopausal women with and without a diagnosis for Alzheimer's disease.Nationwide case-control study.Finnish national population drug register, 1999 2013.All (n=84 739) in Finland who, 2013, received disease from neurologist or geriatrician, who were identified register. Control 739), matched by age hospital district, traced register.Data on obtained reimbursement register.Odds ratios 95% confidence intervals disease, calculated...

10.1136/bmj.l665 article EN cc-by-nc BMJ 2019-03-06

In postmenopausal women, adipose tissue (AT) levels of estrogens exceed circulating concentrations. Although increased visceral AT after menopause is related to metabolic diseases, little known about differences in estrogen metabolism between different depots.We compared concentrations and pathways producing estrone estradiol abdominal subcutaneous women.AT serum samples were obtained from 37 women undergoing surgery for nonmalignant gynecological reasons. Serum estrone, estradiol, sulfate...

10.1210/jc.2017-01474 article EN The Journal of Clinical Endocrinology & Metabolism 2017-09-29

Objective: Data on the health benefits and risks of postmenopausal hormone therapy (HT) are derived mainly from use conjugated equine estrogens. Estradiol-based regimens may have a different risk-benefit profile. We evaluated risk death caused by coronary heart disease (CHD), stroke, or any among users estradiol-based HT in nationwide study Finland. Methods: A total 489,105 women who used 1994 to 2009 (3.3 million exposure years), as indicated reimbursement register national Cause Death...

10.1097/gme.0000000000000450 article EN Menopause The Journal of The North American Menopause Society 2015-03-24

Current guidelines recommend annual discontinuation of postmenopausal hormone therapy (HT) to evaluate whether a woman could manage without the treatment. The impact HT on cardiovascular health has been widely studied, but it is not known how withdrawal affects risk.We evaluated risk cardiac or stroke death after HT. Design, Patients, Interventions, and Main Outcome Measures: Altogether 332 202 Finnish women discontinuing between 1994 2009 (data from National Reimbursement register) were...

10.1210/jc.2015-1864 article EN The Journal of Clinical Endocrinology & Metabolism 2015-09-28

We evaluated whether polyacrylamide hydrogel is noninferior to tension-free vaginal tape treat women with primary stress urinary incontinence.In this controlled noninferiority clinical trial patients incontinence were randomized or treatment. The outcome was patient satisfaction and secondary outcomes effectiveness in reducing leakage complications at 1-year followup. For statistical power significance considered 5%, set 80% the limit 20% a 10% expected dropout rate.A total of 224 entered...

10.1097/ju.0000000000000517 article EN The Journal of Urology 2019-09-03

Although the ovaries produce majority of estrogens in women before menopause, estrogen is also synthesized peripheral tissues such as adipose tissue (AT). The typical female AT distribution, concentrated subcutaneous and femoro-gluteal regions, estrogen-mediated, but significance synthesis premenopausal poorly understood.Serum visceral homogenates from 28 undergoing non-malignant surgery were analyzed for estrone, estradiol, serum estrone sulfate (E1S) concentrations with liquid...

10.1016/j.jsbmb.2021.105849 article EN cc-by The Journal of Steroid Biochemistry and Molecular Biology 2021-02-19

Background and objective. To estimate whether aerobic training has an effect on frequency of hot flushes or quality life.Design. A randomized controlled trial.Participants setting. Symptomatic, sedentary women (n = 176), 43–63 years, no current use hormone therapy.Intervention. Unsupervised for 50 minutes four times per week during 6 months.Outcomes. Hot as measured with Women's Health Questionnaire (WHQ) Health-Related Quality Life (HRQoL, SF-36), daily reported phone-based diary,...

10.3109/07853890.2011.583674 article EN cc-by Annals of Medicine 2011-06-03

Purpose.: To investigate whether postmenopausal hormone therapy (HT) increases retinal and ONH blood flow (BF) protects topography the function of ganglion cells in women (PMW). The effect estradiol (E2) treatment on tissue perfusion was also investigated ovariectomized rats, an animal model for menopause. Methods.: Sixty-four healthy PMW were recruited, 29 whom never used HT 35 had (+HT) continuously since onset Blood inferotemporal artery (ITRA), peripapillary retina, rim measured one eye....

10.1167/iovs.09-3710 article EN Investigative Ophthalmology & Visual Science 2010-03-16

Data are controversial on the impact of postmenopausal hormone therapy (HT) breast cancer mortality. We analyzed nationwide Finnish data mortality risk in women using HT consisting estradiol-only (ET) or estrogen-progestogen (EPT).In total, 489,105 1994 to 2009, traced from reimbursement register, were followed initiation (3.3 million cumulative exposure years) death (n = 1,578 women). The observed deaths compared with those age-standardized background population.The was reduced all users...

10.1097/gme.0000000000000698 article EN Menopause The Journal of The North American Menopause Society 2016-07-27

The exact mechanisms by which estrogens protect against occlusive vascular disorders are not known. One possibility could be an effect on endothelial vasoactive compounds, such as vasodilatory prostacyclin (PGI2) and vasoconstrictory endothelin (ET-1). Here we report the of 17 beta-estradiol synthesis PGI2 ET-1 in cultured human umbilical vein cells. These cells were incubated absence (control) presence (0.001-1 mumol/L) for 3-24 h with serum (10%) or without serum. release PGI2, assessed...

10.1210/jcem.80.6.7775630 article EN The Journal of Clinical Endocrinology & Metabolism 1995-06-01

Abstract Context The decrease in serum estrogens after menopause is associated with a shift from gynoid to an android adipose tissue (AT) distribution. Menopausal hormone therapy (HT) mitigates this change and accompanying metabolic dysfunction, but its effects on AT sex steroid metabolism have not been characterized. Objective We studied of HT subcutaneous visceral estrogen androgen concentrations postmenopausal women. Design, setting, patients, interventions Serum 63 women (n = 50) without...

10.1210/clinem/dgae458 article EN cc-by The Journal of Clinical Endocrinology & Metabolism 2024-07-10

Cardiovascular risk is poorly managed in women, especially during the menopausal transition when susceptibility to cardiovascular events increases. Clear gender differences exist epidemiology, symptoms, diagnosis, progression, prognosis and management of risk. Key factors that need be controlled perimenopausal woman are hypertension, dyslipidemia, obesity other components metabolic syndrome, with avoidance careful control diabetes. Hypertension a particularly powerful factor lowering blood...

10.1080/13697130701755213 article EN Climacteric 2007-01-01

Direct ink writing via single or multihead extrusion is used to synthesize layer-by-layer (LbL) meshes comprising renewable polysaccharides. The best mechanical performance (683 ± 63 MPa modulus and 2.5 0.4 tensile strength) observed for 3D printed structures with full infill density, given the role of electrostatic complexation between oppositely charged components (chitosan cellulose nanofibrils). LbL develop an unexpectedly high wet stability that undergoes gradual weight loss at neutral...

10.1021/acspolymersau.1c00045 article EN cc-by-nc-nd ACS Polymers Au 2021-12-10

Observational studies indicate that postmenopausal hormone therapy (HT) prevents cardiovascular disease, but randomized clinical trials have not confirmed this effect. Hot flushes were more likely to be present in women starting HT observational studies, whereas these symptoms mild or absent among attending trials. We hypothesized vascular function may differ with and without vasomotor hot flushes.One hundred forty-three recently showing a broad range of variation studied radial artery...

10.1097/aog.0b013e31819cac04 article EN Obstetrics and Gynecology 2009-04-01

We assessed the impact of hot flashes and various forms hormone therapy on health-related quality life sexual well-being in recently postmenopausal women.We prospectively interviewed 150 healthy women about (using Women's Health Questionnaire McCoy Female Sexuality Questionnaire), menopause-related symptoms, general health. The were classified into those with (n = 72) without 78) treated for 6 months transdermal estradiol (1 mg/d), oral (2 mg/d) or medroxyprogesterone acetate (5 placebo.At...

10.1097/gme.0000000000000120 article EN Menopause The Journal of The North American Menopause Society 2013-11-12

The aim of this study was to assess whether aerobic training affects menopausal symptoms in recently postmenopausal sedentary women.Symptomatic women aged 45 63 years (N = 176; 3-36 months since last menstruation) were randomly assigned an or a control group. intervention included unsupervised for 50 minutes four times weekly 24 weeks, whereas the group attended health lectures twice month. Symptoms reported day using mobile phone. perceived disturbance (night sweats, mood swings,...

10.1097/gme.0b013e31823cc5f7 article EN Menopause The Journal of The North American Menopause Society 2012-03-13
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