blood pressure–lowering effect in animal and human 
studies, irrespective of dose, duration, or disease 
status (Clark, Zahradka and Taylor, 2015). 
Flavonoids are scavengers of free radicals such 
as superoxide anions and lipid proxy radicals and by 
preventing oxidation of LDL-C, because oxidized 
LDL is believed to be atherogenic. Therefore, 
flavonoids may decrease the formation of 
atherosclerotic plaques and reduce arterial stiffness, 
arteries more responsive to the endogenous stimuli 
of vasodilation. Studies have shown that 
consumption of fruit, vegetable and tea (black and 
green) containing high amount of flavonoid may 
lead to lower blood pressure and may provide 
protection against coronary heart disease and stroke. 
It is possible that their antioxidant effect is 
responsible (Kooshki and Hoseini, 2014). 
Oxidative stress contributes to increase blood 
pressure by acting on eNOS uncoupling and 
decrease bioavailability of nitric oxide. The result is 
a predominant on factors vasoconstrictors and low 
action of vasodilators in vascular bed (Mink et al., 
2007). In the cardiovascular system, the reactive 
oxygen species (ROSs) are produced in vascular 
cells by a number of oxidases, including NADPH 
oxidase, xanthine oxidase, lipoxygenase, and 
cytochrome P450 (Mink et al., 2007; Kizhakekuttu 
and Windlasky, 2010)  Furthermore, clinical data 
have suggested that there is increased endogenous 
antioxidant, introducing exogenous antioxidants 
present in food. In fact, the reduction of oxidative 
stress has been accompanied by decreasing 
cardiovascular risk and blood pressure in humans 
used include vitamins A, C, and E, L-arginine, 
flavonoids, coenzyme Q10, and alpha-lipoic acid 
(Cherubini, 2008). Of these, flavonoids have gained 
attention for their higher antioxidant power than the 
others. In fact, the selected studies that used 
supplements based on flavonoids, all demonstrated 
significant reductions in blood pressure in 
hypertensive , and hypercholesterolemic individuals.  
The reductions were more pronounced for systolic 
blood pressure, with a reduction of around 3 mmHg. 
For diastolic blood pressure, only the study by Ward 
et al (Ward et al., 2005) identified a significant 
reduction (3 mmHg). Although these reductions are 
relatively discreet, these are clinically significant, so 
that hypotension afforded by the flavonoid is 
equivalent to the use of a class of antihypertensive 
medication (Baster, 2014).  
These are some of the changes that can occur 
during pregnancy, especially in pre eclamsia. 
Oxidative stress seems to play an important role in 
preeclampsia. Increased levels of reactive oxygen 
species (ROS) might be the result of ischemia-
reperfusion injury from deficient conversion of the 
medial segment of the spiral arteries. Increased ROS 
exposure leads to protein, lipid and DNA oxidation 
all of which have been found in placentas from 
patients with preeclampsia. Other mechanisms 
involved in preeclampsia include enhanced 
sensitivity to angiotensin II (Mustafa et al., 2012) . 
A subset of women with pre-eclampsia have 
detectable autoantibodies against type-1 angiotensin 
II receptor (AT1) in the serum, which can activate 
AT1 in endothelial cells, vascular smooth muscle 
cells, and mesangial cells from the kidney 
glomerulus. AT1 autoantobodies have been shown 
to induce hypertension, proteinuria, glomerulus 
capillary endotheliosis, increased production of 
sVEGFR-1 (soluble Vascular Endothelial Growth 
Factor Receptor) and to stimulate the synthesis of 
NADPH oxidase (Wallukat et al., 1999; Peres, 
Mariana and Cairrão, 2018). So it is suitable to use 
LaPiSe juice that contain of flavonoid to help 
pregnant women that suffering pre eclamsia. 
Limitation of   this study was the absence of another 
component measurement of LaPiSe juice that might 
be can help reduced blood pressure. 
5 CONCLUSION 
There was a significant difference in pregnant 
women blood pressure which was given LaPise juice 
and not given LaPiSe juice. LaPiSe juice can be 
used as an alternative healthy drink to lower blood 
pressure. 
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Baster, T. (2014) ‘Exercise and hypertension’, (July 
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Cherubini, A. (2008) ‘Dietary Antioxidants as Potential 
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