title: Potentized Mercuric chloride and Mercuric iodide enhance alpha-amylase activity in vitro.
abstract: Mercuric chloride 30c and Mercuric iodide 30c were prepared by successive dilution in 30 steps of 1:100 followed by sonication at 20KHz for 30s at each step. Both were prepared in two media: 90% ethanol and distilled water. Three preparations of Mercuric chloride 30 in water were used: 12-month old, 1-month old and 4-day old. The controls for the water and ethanol-water preparations were pure water 30c and 90% ethanol 30c, respectively. For the three water preparations there were three matched controls of water 30c of the same ages. Each potentized substance or its control was mixed with distilled water 1:100 before testing. Hydrolysis of starch by alpha-amylase was measured by the standard procedure after incubation for 15 min at 27 degrees C. Mercuric chloride 30c and Mercuric iodide 30c in both water and aqueous ethanol media, enhanced enzyme activity significantly, compared to their respective controls. Mercuric chloride 30c, prepared in water 12 months previously, produced no significant change in the enzyme activity compared to its control. We hypothesize that the structure of the active molecule imprinted on water polymers during the process of dynamization. The specifically structured water interacts with the active sites of alpha-amylase, modifying its activity. Ethanol molecules have large non-polar part stabilizing the water structure and thus retaining activity for a longer time.
authors.affiliation: Department of Zoology, Visva Bharati University, Santiniketan, West Bengal, India. ksh_ncsukul@sancharnet.in
authors.forename: N C
authors.initials: NC
authors.lastname: Sukul
authors.forename: A
authors.initials: A
authors.lastname: De
authors.forename: A
authors.initials: A
authors.lastname: Sukul
authors.forename: S P
authors.initials: SP
authors.lastname: Sinhababu
mesh_terms: D004202:Disinfectants / Q000494:pharmacology*; D000431:Ethanol; D006705:Homeopathy; D006801:Humans; D066298:In Vitro Techniques; D007454:Iodides / Q000494:pharmacology*; D008627:Mercuric Chloride / Q000494:pharmacology*; D017669:Mercury Compounds / Q000494:pharmacology*; D013213:Starch; D013997:Time Factors; D014867:Water; D000516:alpha-Amylases / Q000187:drug effects / Q000378:metabolism*
chemical_list: D004202:Disinfectants; D007454:Iodides; D017669:Mercury Compounds; D014867:Water; D000431:Ethanol; D008627:Mercuric Chloride; D013213:Starch; D000516:alpha-Amylases; C025718:mercuric iodide, red