Dietary Salt During Pregnancy and Maternal Vascular Function
Influence of Dietary Salt Intake During Pregnancy on Maternal Systemic and Uteroplacental Vascular Function
Przegląd badań
Status
Status
Warunki
Warunki
Szczegółowy opis
During the study pregnant women at the third trimester of pregnancy (37-38 weeks of pregnancy) will have one study visit during which following procedures will be done:
- measurement of maternal systemic microvascular function by Laser Doppler flowmetry (post-occlusive reactive hyperemia, iontophoresis of acetylcholine and sodium nitroprusside)
- measurement of maternal systemic macrovascular function by vascular ultrasound measurement of brachial artery flow mediated dilation (FMD)
- measurement of maternal uteroplacental function by ultrasound color Doppler measurement of umbilical artery and fetal middle cerebral artery blood flow
- venous blood sampling; serum will be stored for measurement of oxidative stress, matrix metalloproteinase 9 and endocan level
- 24-hour urine natriuresis (to estimate daily salt intake)
- measurement of blood pressure, heart rate, height and weight, body composition
Immediately after the childbirth following procedures will be done:
- assessment of pregnancy outcome (duration of pregnancy, child birth weight, child birth length and Apgar score)
- placental tissue will be taken and stored for measurement of matrix metalloproteinase 9
Typ studiów
Typ studiów
Zapisy (Oczekiwany)
Zapisy
Kontakty i lokalizacje
Kontakt w sprawie studiów
Kontakt w sprawie studiów
- Nazwa: Martina Vulin, MD
- Numer telefonu: +38531512300
- E-mail: martina.vulin@gmail.com
Lokalizacje studiów
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Osijek, Chorwacja, 31000
- Rekrutacyjny
- Osijek University Hospital
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Kontakt:
- Martina Vulin, MD
- Numer telefonu: +385 31 512 300
- E-mail: martina.vulin@gmail.com
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Kryteria uczestnictwa
Kryteria kwalifikacji
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dziecko
- Dorosły
- Starszy dorosły
Akceptuje zdrowych ochotników
Płeć kwalifikująca się do nauki
Metoda próbkowania
Badana populacja
Opis
Inclusion Criteria:
- healthy pregnant women in the third trimester of pregnancy (37-38 weeks of pregnancy)
Exclusion Criteria:
- smoking
- prenatal hypertension
- thrombophilia
- low molecular weight heparin use
- coronary heart disease
- preconception diabetes
- gestational diabetes
- renal impairment
- cerebrovascular and peripheral artery disease
- any other preconception disease that could affect vascular and endothelial function
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
Liczba grup / kohort
Kohorty i interwencje
Grupa / KohortaGrupa / Kohorta |
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Low-salt (LS) group
intake of < 5 g of salt per day
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Normal-salt (NS) group
intake of 5 - 7.5 g of salt per day
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High-salt (HS) group
intake of 7.5 - 10 g of salt per day
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Very high-salt (VHS) group
intake of > 10 g of salt per day
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Co mierzy badanie?
Podstawowe miary wyniku
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
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Maternal systemic microvascular function
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Skin microvascular reactivity assessed by Laser Doppler flowmetry (post-occlusive reactive hyperemia, iontophoresis of acetylcholine and sodium nitroprusside) - measured in perfusion units (PU)
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Maternal systemic macrovascular function
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Vascular ultrasound measurement of brachial artery flow mediated dilation (FMD)
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Maternal uteroplacental function
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Ultrasound color Doppler measurement of umbilical artery and fetal middle cerebral artery blood flow
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Miary wyników drugorzędnych
Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
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Oxidative stress - thiobarbituric acid reactive substances (TBARS)
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Measurement of biomarkers of oxidative stress level.
Thiobarbituric acid reactive substances (TBARS) - biomarker of lipid peroxidation.
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Matrix metalloproteinase 9
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy) (serum) and immediately after childbirth (placental tissue sample)
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ELISA measurement of serum matrix metalloproteinase 9 level in mother serum and placental tissue sample (taken after childbirth)
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy) (serum) and immediately after childbirth (placental tissue sample)
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Endocan
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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ELISA measurement of serum endocan level - proteoglycan associated with endothelium activation
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Pregnancy outcome - duration
Ramy czasowe: the outcome measure will be assessed at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Duration of pregnancy (weeks and days)
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the outcome measure will be assessed at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Pregnancy outcome - birth weight
Ramy czasowe: at one time point immediately after childbirth
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Birth weight (in grams)
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at one time point immediately after childbirth
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Pregnancy outcome - birth length
Ramy czasowe: at one time point immediately after childbirth
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Birth length (in cm)
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at one time point immediately after childbirth
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Pregnancy outcome - Apgar score
Ramy czasowe: at one time point immediately after childbirth
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Apgar score (in Apgar score scale, a total score of 1 to 10; the higher the score, the better the baby is doing after birth)
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at one time point immediately after childbirth
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Inne miary wyników
Inne miary wyników
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Blood pressure
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Automatic oscillometric measurement of systolic and diastolic blood pressure (in mmHg)
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Heart rate
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Automatic oscillometric measurement of heart rate (bpm)
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Body mass index
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Measurement of BMI (kg/m2)
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Body composition
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Body composition and body fluid status measurement by a four-terminal portable impedance analyzer.
Based on the value of skin resistance (Ohm) empirically derived formulas (the original manufacturer's software) will be used to calculate the estimated Fat Free Mass (FFM kg) and Fat (Fat Mass kg).
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Body fluid status
Ramy czasowe: at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Body fluid status measurement by a four-terminal portable impedance analyzer.
Based on the value of skin resistance (Ohm) empirically derived formulas (the original manufacturer's software) will be used to calculate the estimated Total Body Water (TBW L), Extracellular Water (ECW L), Intracellular Water (ICW L), Plasma Fluid (PF L) and Interstitial Fluid (IF L).
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at one time point in the third trimester of pregnancy (37-38 weeks of pregnancy)
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Współpracownicy i badacze
Sponsor
Sponsor
Śledczy
Śledczy
- Krzesło do nauki: Ines Drenjančević, MD, PhD, Faculty of Medicine Josip Juraj Strossmayer University of Osijek
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Rzeczywisty)
Rozpoczęcie studiów
Zakończenie podstawowe (Oczekiwany)
Zakończenie podstawowe
Ukończenie studiów (Oczekiwany)
Ukończenie studiów
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Pierwszy wysłany
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia wysłana aktualizacja
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Inne numery identyfikacyjne badania
Inne numery identyfikacyjne badania
- 602-04/21-08/07
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
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