Nitrato di magnesio, studi

Questo studio ha esaminato gli effetti degli agenti inorganici del magnesio: magnesio nitrato Mg (NO3) 2, magnesio solfato MgSO4 e magnesio cloruro MgCl2 sullo sviluppo di disturbi neurologici e mortalità nei ratti derivanti da ischemia cerebrale provocata da un'ostruzione bilaterale monostadio dell'arteria della carotide. I ratti sono stati iniettati con uno dei preparati di magnesio esaminati (5 mg / 1 kg di peso corporeo) 1 ora prima o 1-2 secondi dopo l'occlusione. I ratti del gruppo di controllo sono stati trattati con soluzione salina fisiologica allo stesso modo. Indipendentemente dal momento dell'iniezione, il nitrato di magnesio ha dimostrato un significativo effetto protettivo sulla dinamica dei disturbi neurologici e della mortalità, mentre effetti simili del solfato di magnesio e del cloruro di magnesio si sono dimostrati insignificanti (1).

La somministrazione di integratori di magnesio e nitrati/nitriti riduce la pressione arteriosa e attenua lo sviluppo di complicazioni indotte dall'ipertensione. Tuttavia, potrebbe essere necessario un periodo di somministrazione più lungo o un inizio più precoce del trattamento per ritardare lo sviluppo di complicanze dovute all'ipertensione (2).

Il nitrato di magnesio è utilizzato nell'alimentazione animale e nell'agricoltura (3).

Bibliografia________________________________________

(1) Kuzenkov VS, Krushinskii AL. Protective effect of magnesium nitrate against neurological disorders provoked by cerebral ischemia in rats.   Bull Exp Biol Med. 2014 Oct;157(6):721-3. doi: 10.1007/s10517-014-2651-5. Epub 2014 Oct 24.

(2) Vilskersts R, Kuka J, Liepinsh E, Cirule H, Gulbe A, Kalvinsh I, Dambrova M.  Magnesium nitrate attenuates blood pressure rise in SHR rats.   Magnes Res. 2014 Jan-Mar;27(1):16-24. doi: 10.1684/mrh.2014.0358.

(3) Sowande, O. S., & Aina, A. B. J. (2001). Magnesium nitrate as dietary additive in the nutrition of West African Dwarf goat. Archivos de zootecnia, 50(191), 335-341.

Abstract. Twelve female West African Dwarf (WAD)goats were used in an 8 weeks feeding trial toinvestigate magnesium nitrate as a dietary additivein goats’ nutrition. Four treatment levels (0, 0.5,1.0and 1.5 p.100) of magnesium nitrate were used toobtain four diets containing 0.21, 0.32, 0.45 and0.65 p.100 magnesium. Results indicated thatanimals on diet 4, though consumed the lowestdry matter (0.282 kgDM/day), promoted the bestaverage daily gain (39.00 g/d), feed conversionratio (8.28), serum magnesium (3.10 mg/100ml)and magnesium retention (0.160 g/kgBW). Theperformance and magnesium retention of goatson other diets were significantly lower. Magnesiumnitrate can therefore, be used up to 1.5 p.100 0f diets to increase magnesium intake, without anyadverse effect, for a better performance in WAD goats.

Chakraborty, P., & Bose, B. (2020). Effects of magnesium nitrate and boric acid on germination and seedling growth parameters of wheat (Triticum aestivum L.) var. HUW-468. Journal of Pharmacognosy and Phytochemistry, 9(4), 804-808.

Abstract. Plant requires both macro and micronutrients for regulating their metabolic process throughout different phases of growth and development. Magnesium and Boron as a part of macro and micronutrient respectively perform specific function inside plant body. Here, to find out the effect of these two nutrients as seed priming agent, an experiment was conducted. In the present piece of experiment wheat seeds of variety HUW -468 were soaked for 12 hours in solutions of Mg(NO3)2 (macro nitropriming, C1), H3BO3 (micro nutripriming, C2), combination of Mg(NO3)2 + H3BO3 (combined nutripriming C3), distilled water (hydropriming, C4) for priming purpose. Thereafter all the four sets are dehydrated under forced air and used for experimentation. Various parameters like germination percentage, germination parameters includes: FGP, MGT, GI, GRI, CVG, MGR, plumule, radicle and seedling lengths, fresh and dry weights of radicle & plumule, alpha amylase activity, soluble sugar contents and seedling vigour (index I and II) were determined at 3, 5, 7 and 9th days of seed germination and seedling growth and were compared with non- primed control sets (C0). Result concluded that magnesium nitrate primed seeds (C1) showed better result for all the parameters mentioned except alpha amylase activity & soluble sugar content, later two parameters were best in boric acid (C2) primed one. However, seeds primed with combination of magnesium nitrate and boric acid (C3) showed best result in radicle length and fresh & dry weights of it. In all the observed parameters it was noted that macro and micro primed sets performed better alone or in combination than hydro primed and non-primed control sets.