Purpose: Placement of small-diameter implants often provides a solution to space-related problems in implant restoration. This 7-year retrospective study presents results from 192 small-diameter implants placed in 165 patients from 1992 to 1996. Materials and Methods: The dental records of each patient were reviewed. The implants, which were either 2.9 mm or 3.25 mm in diameter, were placed by ...

Carboxylesterases hydrolyze esters, amides, and thioesters to produce carboxylic acids and resulting alcohols, amines, and thiols, respectively. Uridine 59-diphosphateglucuronosyltransferases are colocalized with carboxylesterases and have the potential to further metabolize carboxylic acids to acyl glucuronides, but it is currently unknown if acyl glucuronides, being esters, also interact with...

Human cytochrome P450 (CYP)2A6 is responsible for the metabolic activation of tobacco-related nitrosamines, as well as the metabolism of nicotine and some pharmaceutical drugs. There are large interindividual differences in CYP2A6 activity and expression, largely attributed to genetic polymorphisms. However, the variability was observed within homozygotes of the wild-type CYP2A6 gene. In this s...

Carboxylesterases hydrolyze esters, amides, and thioesters to produce carboxylic acids and resulting alcohols, amines, and thiols, respectively. Uridine 59-diphosphateglucuronosyltransferases are colocalized with carboxylesterases and have the potential to further metabolize carboxylic acids to acyl glucuronides, but it is currently unknown if acyl glucuronides, being esters, also interact with...

چکیده نخستین رویارویی اندیشه گران ایرانی با تمدن غرب تقریباً در دورۀ قاجار اتفاق افتاد. احساس عقب ماندگی و ضعف فکری این اندیشه گران در برابر غرب، اولین رگه های شکل گیری تجددگرایی در ایران را ایجاد کرد. میرزا ملکم خان از مهم ترین نمایندگان تجددطلبی در ایران اسلامی است. ملکم خان اندیشه گری است که شالودۀ اندیشه و عمل معاصر را در کنار نخستین منورالفکران ایران بنیان نهاده است. برخی از نویسندگان و مور...