Background: Intrathecal magnesium sulfate, an NMDA antagonist, has been shown to prolong analgesia and potentiates spinal anesthesia without significant side effects in parturients. This study aimed to explore the hypothesis that adding magnesium sulfate to intrathecal low-dose of bupivacaine and sufentanil can prolong the spinal analgesia in patients with severe pre-eclampsia. Methods: Sixty p...

Since being discovered initially in mixed-cation systems, a method of forming end-member MgSO4 9H2O has been found. We have obtained powder diffraction data from protonated analogues (using X-rays) and deuterated analogues (using neutrons) of this compound over a range of temperatures and pressures. From these data we have determined the crystal structure, including all hydrogen positions, the ...

Background and Purpose: Poor-grade subarachnoid hemorrhage still has a poor prognosis. This randomized controlled clinical trial evaluated intracisternal magnesium sulfate infusion combined with intravenous hydrogen therapy in patients poor-grade hemorrhage. Methods: Thirty-seven were to Mg+H 2 , Mg, control groups. Mg groups received (2.5 mmol/L) at 20 mL/h for 14 days. group also hydrogen-ric...

the 24 maltiparous holstein dairy cows were allocated in a completely randomized design to study the effects of different level and source of sulfur supplement in close-up diets on blood metabolites, colostrums composition and liver performance. the mean body weight of the cows was 687.9 kg and the mean days until expected calving date was 21.8 d. the first treatment (t1) has contained 0.21% su...

1. Sodium dodecyl sulfate (SDS) attacks the chlorophyll-protein compound modifying its protein properties and absorption spectrum. 2. In the presence of SDS, chlorophyll is quantitatively converted to phaeophytin; i.e., magnesium is removed from the molecule. This reaction, measured spectrophotometrically, proceeds at a rate directly proportional to the hydrogen ion concentration. At constant p...

BACKGROUND There have been many concerns about alteration in hemodynamic parameters within and shortly after endotracheal intubation (ETI) in patients scheduled for elective coronary artery bypass grafting (CABG). OBJECTIVES We compared the attenuation effect of magnesium sulfate and lidocaine on hemodynamic responses after ETI, in patients undergoing CABG. PATIENTS AND METHODS In this rand...

Magnesium sulfate salts have been linked to the decay of stone in the field and in laboratory experiments, but the mechanism of damage is still poorly understood. Thermomechanical analysis shows that expansion of stone contaminated with magnesium sulfate salts occurs during drying, followed by relaxation of the stress during dehydration of the precipitated salts. We applied thermogravimetric an...