Parotid saliva 1 H‐NMR analysis for colon cancer metabolomics: A case report

2021 ◽  
Author(s):  
Angela Rovera ◽  
Mark Hector ◽  
Paul Anderson
Keyword(s):  
Colon Cancer ◽  
Case Report ◽  
Nmr Analysis ◽  
Parotid Saliva ◽  
H Nmr

Synthesis and Structure Assignment of 2-(4-Methoxybenzyl)cyclohexyl β-D-Glucopyranoside Enantiomers

2006 ◽  
Vol 71 (10) ◽  
pp. 1470-1483 ◽  
Author(s):  
David Šaman ◽  
Pavel Kratina ◽  
Jitka Moravcová ◽  
Martina Wimmerová ◽  
Zdeněk Wimmer
Keyword(s):  
Analytical Data ◽  
Chiral Hplc ◽  
Nmr Analysis ◽  
Target Structure ◽  
Enantiomerically Pure ◽  
Whole Cells ◽  
H Nmr ◽  
Structure Assignment ◽  
Related Compounds ◽  
C Nmr

Glucosylation of the cis- and trans-isomers of 2-(4-methoxybenzyl)cyclohexan-1-ol (1a/1b, 2a/2b, 1a or 2a) was performed to prepare the corresponding alkyl β-D-glucopyranosides, mainly to get analytical data of pure enantiomers of the glucosides (3a-6b), required for subsequent investigations of related compounds with biological activity. One of the employed modifications of the Koenigs-Knorr synthesis resulted in achieving 85-95% yields of pure β-anomers 3a/3b, 4a/4b, 3a or 4a of protected intermediates, with several promoters and toluene as solvent, yielding finally the deprotected products 5a/5b, 6a/6b, 5a or 6a as pure β-anomers. To obtain enantiomerically pure β-anomers of the target structure (3a, 4a, 5a and 6a) for unambiguous structure assignment, an enzymic reduction of 2-(4-methoxybenzyl)cyclohexan-1-one by Saccharomyces cerevisiae whole cells was performed to get (1S,2S)- and (1S,2R)-enantiomers (1a and 2a) of 2-(4-methoxybenzyl)cyclohexan-1-ol. The opposite enantiomers of alkyl β-D-glucopyranosides (5b and 6b) were obtained by separation of the diastereoisomeric mixtures 5a/5b and 6a/6b by chiral HPLC. All stereoisomers of the products (3a-6b) were subjected to a detailed 1H NMR and 13C NMR analysis.

Synchronous Colon Cancer Presenting as a Different Concomitant Surgical Emergency; Case Report and Literature Review

2020 ◽  
Vol 92 (5-6) ◽  
pp. 182-185
Author(s):  
Roi Abramov ◽  
Subhi Mansour ◽  
Kenan Hallon ◽  
Bishara Bishara ◽  
Safi Khuri
Keyword(s):  
Colon Cancer ◽  
Case Report ◽  
Literature Review ◽  
Emergency Case ◽  
Surgical Emergency ◽  
Synchronous Colon Cancer

1H-NMR Analysis of Degree of Substitution in N,O-Carboxymethyl Chitosans from Various Chitosan Sources and Types

2012 ◽  
Vol 506 ◽  
pp. 158-161 ◽  
Author(s):  
A. Jaidee ◽  
Pornchai Rachtanapun ◽  
S. Luangkamin
Keyword(s):  
Chemical Structure ◽  
Carboxymethyl Chitosan ◽  
Degree Of Substitution ◽  
Resonance Spectroscopy ◽  
Nmr Analysis ◽  
Reaction Conditions ◽  
H Nmr ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Chitosan Oligomer ◽  
Ft Ir

N,O-Carboxymethyl chitosans were synthesized by the reaction between shrimp, crab and squid chitosans with monochloroacetic acid under basic conditions at 50°C. The mole ratio of reactants was obtained from various reaction conditions of shrimp chitosan polymer and oligomer types. The mole ratio 1:12:6 of chitosan:sodium hydroxide:monochloroacetic acid was used for preparing carboxymethyl of chitosan polymer types while carboxymethyl of chitosan oligomer types were used the mole ratio 1:6:3 of chitosan:sodium hydroxide:monochloroacetic acid. The chemical structure was analyzed by fourier transformed infrared spectroscopy (FT-IR) and proton nuclear magnatic resonance spectroscopy (1H-NMR). The FT-IR was used for confirm the insertion of carboxymethyl group on chitosan molecules. The 1H-NMR was used for determining the degree of substitution (DS) of carboxymethylation at hydroxyl and amino sites of chitosans. Carboxymethyl chitosan samples had the total DS of carboxymethylation ranging from 1.0-2.2. The highest of DS of carboxymethylation was from shrimp chitosan oligomer type.

scholarly journals Relapsed Colon Cancer Patient Presenting With Hematuria 13 Years After Primary Tumor Resection: A Case Report

2010 ◽  
Vol 26 (4) ◽  
pp. 211-216
Author(s):  
Yu-Ho Huang ◽  
Hsiang-Lin Tsai ◽  
Chee-Yin Chai ◽  
Jaw-Yuan Wang
Keyword(s):  
Colon Cancer ◽  
Case Report ◽  
Cancer Patient ◽  
Primary Tumor ◽  
Tumor Resection ◽  
Colon Cancer Patient ◽  
Primary Tumor Resection

scholarly journals Asynchronous bilateral anastomosis site sigmoid colon cancer after ureterosigmoidostomy: a case report

2016 ◽  
Vol 14 (1) ◽  
Author(s):  
Keiichi Arakawa ◽  
Soichiro Ishihara ◽  
Kazushige Kawai ◽  
Junichi Shibata ◽  
Kensuke Otani ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Case Report ◽  
Sigmoid Colon ◽  
Sigmoid Colon Cancer ◽  
Anastomosis Site

scholarly journals Management of a patient with colon cancer and rotor syndrome: A case report

2013 ◽  
Vol 7 (3) ◽  
pp. 797-798
Author(s):  
DENIZ ARSLAN ◽  
FATMA AVCI ◽  
ALPARSLAN MERDIN ◽  
SEYDA GUNDUZ ◽  
HASAN SENOL COSKUN
Keyword(s):  
Colon Cancer ◽  
Case Report ◽  
Rotor Syndrome

scholarly journals Intraperitoneal migrating mesh plug wrongfully taken for right colon cancer: A case report

2021 ◽  
pp. 106088
Author(s):  
A. Haddad ◽  
D. Bel Haj Yahia ◽  
Y. Chaker ◽  
H. Maghrebi ◽  
A. Daghfous ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Case Report ◽  
Mesh Plug ◽  
Right Colon ◽  
Right Colon Cancer

Plain 1 H NMR Analysis Streamlines the Quality Control of Antiviral Favipiravir and Congeneric WHO Essential Medicines

2021 ◽  
Author(s):  
Prabhakar S. Achanta ◽  
Shao‐Nong Chen ◽  
Guido F. Pauli
Keyword(s):  
Quality Control ◽  
Essential Medicines ◽  
Nmr Analysis ◽  
H Nmr

scholarly journals Bone marrow metastasis of colon cancer as the first site of recurrence: A case report

2014 ◽  
Vol 8 (6) ◽  
pp. 2672-2674 ◽  
Author(s):  
DO HYOUNG LIM ◽  
SOON IL LEE ◽  
KEON WOO PARK
Keyword(s):  
Bone Marrow ◽  
Colon Cancer ◽  
Case Report ◽  
Bone Marrow Metastasis

scholarly journals Sigmoid colonic endometriosis mimicking colon cancer: A case report

2018 ◽  
Vol 5 (1-2) ◽  
pp. 59-62
Author(s):  
Tsung-Jung Lin ◽  
Ting-An Chang ◽  
Chin-Tsung Ting ◽  
Chih-Lin Lin ◽  
Kuan-Yang Chen
Keyword(s):  
Colon Cancer ◽  
Case Report
Sign in / Sign up

Export Citation Format

Share Document