To Establish The Involvement Of Central Dopaminergic And Serotonergic Mechanism Of Ginger-Juice On Amphetamine And Lithium Treated Rat.

Background & Objective: To establish the involvement of central dopaminergic and serotonergic mechanismof ginger-juice (ZINGIBER OFFICINALE ROSCOE) CNS parameters in rat. Methodology: (A) Albino rats (n=6-12) were administered G.J at two doses (2ml & 4 ml/rat, p.o) as single administration and chronic treatment over period of 30 days. Following this assessment was done. Effect of treatment with G.J acutely and chronically (30days) administered, was assessed. Parameters used during assessment were total acidity, gastric volume & pH and ulcer index ‘UI’(acute and chronic). Results & Conclusion: Ginger administered itself did not affect loco motor activity as well as amphetamine-induced enhancement of loco motor activity.Lithium induced head twitches were enhanced after chronic administration indicating enhanced serotonergic system in the central nervous system.

The Analgesic Effects Of Ginger-Juice (Zingiber Officinale Roscoe) On Wistar Albino Rat.

Background: In the view of contradictory reporting concerning analgesic effect, it was planned to investigate the analgesic effect of ginger-juice (ZINGIBER OFFICINALE ROSCOE) on wistar albino rat. Methodology: Wistar albino rats (n=6-12) were administered ginger juice (GJ) at doses (4ml/rat, p.o) as single administration (single dose) and repeated dose over a period of 7 days. Effect of treatment with G.J single and repeated (7days) dose was assessed. Parameter used during assessment was licking of paw after placing the rate on analgesiometer heated up to 50C. Results: The single and repeated administration of GJ (4ml/rat,p.o for 7 days) did not indicate analgesic effect on hot plate model. Conclusion: administered itself did not show analgesic effect on hot plate model.

To investigate the antioxidant property of GINGER-JUICE (ZINGIBER OFFICINALE ROSCOE) using established antioxidant parameters.

Background & objectives: To investigate the Antioxidant property of ginger-juice (G.J) in rat. Methods: Albino rats (n=6-12) were administered G.J at two doses (4ml/rat, p.o) as a chronic treatment over period of 21 days. The liquid portion which was obtained by the course of filtration, looked like yellowish hazy opalescent liquid. ANTIOXIDANT STATUS (FREE RADICALS): Blood samples were used for following antioxidant parameters. 1. Glutathione peroxidise 2. Glutathione reductase 3. Total antioxidant status Results: The chronic administration of G.J (4ml/rat, p.o) over a period of 21 days did not alter any of these parameters except glutathione reductase. Conclusion: G.J rules out the Antioxidants property in form of rise reduced glutathione level was noted.

The effect of centrophenoxine at the skeletal neuromuscular junction.

Centrophenoxine exhibited some interesting actions at the neuromuscular junction. The drug was ineffective in rat or chick preparations, but blocked neuromuscular transmission in frog preparations. The blockade was reversed by adrenaline, potassium, choline and physostigmine. The drug had no effect on muscle contractility or endplate cholinoceptor. Hemicholinium 3 induced a neuromuscular blockade in rat (in vivo) which was reversed by choline but not by centrophenoxine. Neither of these two drugs could reverse the blocking effect of hemicholinium in frog preparations. It is concluded that centrophenoxine acts only in frog and the blockade involves a presynaptic mechanism. The work further suggests that choline uptake systems in the rat and the frog may not be identical, since choline competed with hemicholinium for the uptake system in rat and with centrophenoxine (but not with hemicholinium) in the frog.