Putri Cahaya Situmorang 
1 
, Syafruddin Ilyas 
1* 
, Salomo Hutahaean 
1  1
1 Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan, Indonesia.
        
	
        
        
Abstract
            Background: Pre-eclampsia (PE) contributes to the second cause of  maternal death in Indonesia. Andaliman is a typical spice of the Batak ethnic  in Northern Sumatera Province, Indonesia. This study aimed to explore the  potential of novel herbal medicine compound of nanoherbal andaliman and extra  virgin olive oil (EVOO) as PE treatment.  Methods: Nanoherbal  andaliman was generated using High-energy Milling (HEM). The treatments  were divided into the following five groups: K- (control): pregnant  rats; K+: PE model rats; P1: PE model rats + 0.45 g of EVOO/200 g BW  on the 13th–19th day of pregnancy; P2: PE model rats +  nanoherbal andaliman 100 mg/200 g BW on the 13th– 19th  day of pregnancy; and P3: PE model rats + combination of 0.45 EVOO/200 g BW and  nanoherbal andaliman 100 mg/200 g BW on the 13th–19th  day of pregnancy. Rats were dissected on the 20th day of pregnancy. The  observed parameters were blood pressure, proteinuria, malondialdehyde (MDA), Heat  Shock Protein-70  HSP-70 and histology of placenta.  Results: A  significant difference was noticed (p<0.05) in blood pressure, proteinuria,  foetal weight, haematocrit, erythrocytes and trophoblastic cells after the  administration of combined nanoherbal andaliman and EVOO. No significant  differences in placental weight, foetal number, leukocytes, MDA and HSP-70 were  found (p>0.05).  Conclusion: The  combination of nanoherbal andaliman and EVOO decreased systolic blood pressure  and induced the expression of MDA and HSP-70, as well as placental histology of  pre-eclamptic rats.