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Histological Features of Catecholaminergic Neuron in Substantia Nigra Induced by Paraquat Dichloride (1,1-dimethyl-4,4 bipyridinium) in Wistar Rat as A Model of Parkinson Disease Tri Wahyu Pangestiningsih; Woro Danur Wendo; Yulfia Nelymalik Selan; Filphin Adolfin Amalo; Nemay Anggadewi Ndaong; Victor Lenda
Indonesian Journal of Biotechnology Vol 19, No 1 (2014)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.756 KB) | DOI: 10.22146/ijbiotech.8638

Abstract

Paraquat dichloride has been used by farmers as a herbicide to kill the grass. On the other hand, paraquatdichloride is harmful if enters to the body, causing Parkinson’s disease, since it is disrupting dopamineproduction in the substantia nigra pars compacta or dopamine pathways Nigro striatal pathway. The studywas done to fi nd out the histological changes of catecholaminergic neurons and Nigro striatal pathway causedby paraquat dichloride treatment in Wistar rats as a model of Parkinson’s disease.Twenty-two Wistar rats 3,5 months old were divided into 4 groups, 5 rats each. Group I (control group)were injected with aquabidest, while groups II, III, and IV were injected intraperitoneally with paraquatdichloride in aquabidest, with the dosage 5 , 10 and 15 mg/kg bw respectively. The rats were injected onceper week for 6 weeks. Three days after the last injection, the rats were anesthetized using xylasin (2 mg/kg)and ketamine (20 mg/kg) intramuscularly, and then were intracardiac perfused using physiological saline asprerinse solution, followed by 10% buffered formalin solution as a fi xative. After animals were fi xed, the brainswere removed and embedded in paraffi n block and cut in 12 μm thickness for immunohistochemistry stainingusing tyrosine hydroxylase antibody. The results of staining then were observed under light microscope andanalyzed descriptively.The results showed that the catecholaminergic neurons were distributed in the substantia nigrapars compacta in all treatment groups, however, the cell density were found decreased only in group IV.Catecholaminergic neurons appear in the bipolar and multipolar form, while dopamine ‘Nigro striatal pathway’was found exist in all treatment groups. From our study, histologycally the decreased of catecholaminergicneurons is only found in rats that received paraquat dichloride in dose 15 mg/kg bw for 6 weeks.
Identifikasi Senyawa Bioaktif Ekstrak Daun Semak Bunga Putih (Chromolaena odorata) Asal Kota Kupang, Nusa Tenggara Timur Meity Marviana Laut; Nemay Anggadewi Ndaong; Filphin Adolfin Amalo; Inggrid Trinidad Maha; Heny Nitbani; Dede Rival Novian
JURNAL KAJIAN VETERINER Vol 10 No 2 (2022): Jurnal Kajian Veteriner
Publisher : FAKULTAS KEDOKTERAN HEWAN UNIVERSITAS NUSA CENDANA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jkv.v10i2.8693

Abstract

Chromolaena odorata, a member of Asteraceae, is a tropical shrub that grows throughout the year and can dominate pastures. The tropical weed is known as a medicinal plant and has the potential as a natural insecticide. For local people in NTT, the crude extract of the leaves is used to treat myasis on the livestock. C. odorata is also used as silage or food alternative for livestock. This study aims to determine the content of bioactive compounds in C. odorata leaves and determine the extract yield value, as scientific validation of local wisdom in NTT. This research began with the collection of fresh C. odorata leaves, extraction by maceration using 70% ethanol as solvent, solvent evaporation, and phytochemical screening. Phytochemical screening showed that the leaf extract of C. odorata from Kupang City contained high amounts of flavonoids, tannins, alkaloids, triterpenes and steroids and were tested negative for saponins. The extract yield value is 6.09%, means that the extract contains bioactive compunds in high concentration. Further research needs to be done to find out in more detail the content of secondary metabolites from C. odorata leaves and its activity in promote wound healing on livestock in NTT.