scholarly journals Editors’ Note

Author(s):  
WD Heller ◽  
G Scherer

AbstractIt is with sadness that we learned that T.C. Tso passed away in April of this year. In this issue of Beitraege, we publish an obituary written by Professor Lowell Bush on the personality and scientific career of Dr Tso.T.C. Tso published 19 manuscripts in our journal. His first article in Beitraege was entitled “Examination of Aflatoxin B1 in Leaf Tobacco and in Cigarette Smoke Condensate” and published in 1967. His last article in Beitraege was a review entitled “Tobacco Research and Its Relevance to Science, Medicine and Industry” revealing a vision for the future of tobacco plant research. In a letter to the editor (Beitr. Tabakforsch Int. 23 (2008) 63-65), Hubert Klus appreciated this publication of Dr Tso in terms of its retrospective and prospective implications on tobacco-related science and science policy.In this context, we would like to draw our readers’ attention to the autobiography of Dr Tso, which is mentioned in the obituary by Professor Bush. Finally, it should not go unmentioned that, for one decade - from 1988 to 1998, Dr Tso served as a member of the advisory board of our journal and helped to maintain the scientific standard of Beitraege.

Author(s):  
M. E. Snook ◽  
R. F. Severson ◽  
R. F. Arrendale ◽  
H. C. Higman ◽  
O. T. Chortyk

AbstractThe methyl, multi-methyl, and ethyl derivatives of the polynuclear aromatic hydrocarbons (PAH) of cigarette smoke condensate (CSC) were isolated from the neutrals by silicic acid chromatography, solvent partitioning and gel chromatography. The procedure yielded a relatively pure PAH isolate amenable to further identifications. The multi-alkylated PAH were concentrated in the early gel fractions with parent and higher ring PAH found in subsequent gel fractions. It was shown that CSC is very rich in alkylated PAH, and their successful identification required extensive use of gas and liquid chromatography and ultra-violet and GC - mass spectrometric techniques. High-pressure liquid chromatography (HPLC) separated individual isomers of the alkylated PAH in complex GC peaks. PAH from indene to pentamethylchrysene were found. This report concludes our identification studies on the PAH of CSC and complements our two previous reports in this journal. Collectively, our studies have identified approximately 1000 PAH of cigarette smoke condensate and have led to the development of methods for the routine quantitation of PAH in smalI quantities of cigarette smoke condensate.


The Lancet ◽  
2011 ◽  
Vol 378 (9793) ◽  
pp. 838-847 ◽  
Author(s):  
Steven L Gortmaker ◽  
Boyd A Swinburn ◽  
David Levy ◽  
Rob Carter ◽  
Patricia L Mabry ◽  
...  
Keyword(s):  

2015 ◽  
Vol 87 (2) ◽  
pp. 997-1005 ◽  
Author(s):  
Jinqiang Hu ◽  
Tao Wei ◽  
Siwen Sun ◽  
Aijing Zhao ◽  
Chunping Xu

The aim of the study was to investigate the effect of cigarette smoke on the production and characterization of exopolysaccharides (EPSs) produced by Bifidobacterium. Cigarettes of Shanhua brand (nicotine: 1.1 mg, tar: 11 mg) were utilized to prepare a cigarette smoke condensate (CSC). The standard strain of Bifidobacterium animalis was cultured in MRS media under anaerobic addition of CSC. The results showed that CSC significantly decreased the growth of B. animalis as well as EPSs and acetic acid production. Furthermore, two EPSs fractions (Fr-I and Fr-II) were isolated and purified for chemical and molecular determination. By comparison with control, CSC was found to be of great impact on EPSs carbohydrate composition. The molecular weight mass of Fr-I changed from 3.33×105 g/mol (without CSC) to 2.99×105 (with CSC). In conclusion, in vitro studies revealed that CSC was directly able to affect the production of metabolites for B. animalis, which could be an essential factor in certain pathological disorders.


2015 ◽  
Vol 3 ◽  
pp. 205031211557831 ◽  
Author(s):  
Yongmei Xiao ◽  
Beverly Word ◽  
Lascelles Lyn-Cook ◽  
Beverly Lyn-Cook ◽  
George Hammons

Sign in / Sign up

Export Citation Format

Share Document