[HTML][HTML] Serrated polyps and polyposis of the colon: a brief review for surgeon endoscopists

…, RM Helewa, H Singh, HR Wightman… - Canadian Journal of …, 2021 - ncbi.nlm.nih.gov
Serrated polyps (SPs) were once considered benign, clinically unimportant lesions. However,
it is now recognized that through the serrated neoplasia pathway (SNP), SPs play a role in …

[HTML][HTML] Characterizing microsatellite instability and chromosome instability in interval colorectal cancers

AL Cisyk, Z Nugent, RH Wightman, H Singh… - Neoplasia, 2018 - Elsevier
There are a substantial portion of colorectal cancers (CRCs), termed interval CRCs (I-CRCs),
that are diagnosed shortly after a negative colonoscopy (ie, no detectable polyps or CRC) …

Nucleus of the tractus solitarius metastasis: relationship to respiratory arrest?

RH Rhodes, HR Wightman - Canadian journal of neurological …, 2000 - cambridge.org
Background:A 52-year-old woman with metastases in brain and bone had clinical and
radiological response to therapy but died about 10 weeks after diagnosis. General autopsy failed …

Improved syntheses and complete characterization of some polychloronaphthalenes

P Auger, M Malaiyandi, RH Wightman… - … science & technology, 1993 - ACS Publications
The polychlorinated naphthalenes (PCNs) are a known and ubiquitous class of environmental
pollutants whose detailed investigation to date has been greatly hindered by the lack of …

Chloromethylation of ortho-disubstituted benzenes. A simple preparation of some useful. alpha. isomers of indan, tetralin, and benzosuberane

RH Wightman, DE Laycock - The Journal of Organic Chemistry, 1978 - ACS Publications
… Reagent grade acetone was stored over 4A molecular sieves for at least 24 h before use.
4-fert-Butylcatechol was purified by sublimation (50 C, 0.1 Torr) and recrystallization from …

Mass spectrometry of nucleic acids

K Jankowski, JRJ Paré, RH Wightman - Advances in heterocyclic chemistry, 1986 - Elsevier
Publisher Summary Nucleic acids are practically nonvolatile and usually possess a molecular
weight of several million atomic mass units (amu) (μ) often expressed in daltons: up to 10 …

In vivo electrochemical evidence for simultaneous 5‐HT and histamine release in the rat substantia nigra pars reticulata following medial forebrain bundle stimulation

…, KM Wood, RE Ambrose, RM Wightman - Journal of …, 2011 - Wiley Online Library
… Rats were housed under 12 h/12 h light cycles with controlled temperature and humidity.
Food and water were available ad libitum. All animal care was in accordance with the Guide for …

Physical properties of some synthetic trialkyl/aryl phosphates commonly found in environmental samples

RH Wightman, M Malaiyandi - Environmental Science & …, 1983 - ACS Publications
Discussion Preparation of Phosphates. Of the many possible syntheses of symmetrical and
unsymmetrical triaryl and trialkyl/aryl phosphates (8) the procedures utilized in this paper …

1,2,3,4,7,8,9,10-Octahydrodicyclohepta[de, ij]naphthalene and 2,7-dimethylpyrene: a short novel synthesis

…, RJ Wain, RH Wightman - Canadian Journal of …, 1977 - cdnsciencepub.com
… The reaction mixture was then poured on ice (1000 g) and after 1 h extracted with
methylene chloride (3 x 200 ml); the combined organic layers were washed with water (2 x 200 …

Pathological reassessment of hyperplastic colon polyps in a city-wide pathology practice: implications for polyp surveillance recommendations

…, Z Nugent, R Gheorghe, R Wightman - Gastrointestinal …, 2012 - Elsevier
… DISCLOSURE: H. Singh's work is supported in part by an American College of
Gastroenterology junior faculty development grant. No other financial relationships relevant to this …