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Biomedical subjects

W Carson

Publications and source records attributed to W Carson.

45 records · Page 3Linked to original sources
PubMed1979

Evaluation of histological classification in early gastric cancer (an analysis of 300 cases).

Using the Lauren approach of histological classification, 300 cases of early gastric cancer (EGC) were analysed with regard to their age distribution, to predisposing lesions, including gastritis, and survival rate. The average age of onset for EGC of the diffuse type is 56, ten years earlier than for the intestinal type. There was a significantly high percentage of EGC of the diffuse type without gastritis. On the other hand, gastritis in pernicious anaemia falls in the high-risk group. The survival rate in our cases is 98%, corrected for age. The results show that it is of utmost importance to differentiate between the histological types of gastric carcinoma; for there may be indeed a difference in pathogenesis and aetiology.

Adenocarcinoma↗
PubMed1975

Studies of the viral flora in keratoconjunctivitis sicca.

Fifty patients suffering from KCS and exhibiting various patterns of corneal staining with fluorescein were examined for adenovirus types 3, 7, 8, and 14, herpes simplex, and the TRIC group by tissue culture and immunofluorescein techniques. No viruses were detected by either methods, and it is considered that presumption of virus involvement in these cases is untenable.

Adenoviridae↗
PubMedDate not supplied

Reducing chemical background noise in automated protein sequencers.

Baseline noise resulting from the by-products of the automated Edman degradation of proteins is reduced using nonstandard coupling chemicals and dual-wavelength diode array detection of phenylthiohydantoin (PTH) amino acids. Changes to the chemistry include lowering the phenylisothiocyanate (PITC) concentration and using a novel coupling base diisopropylethylamine (DIPEA). The diode array is configured to cancel the UV absorbance of reaction by-products without adversely affecting the PTH signal intensities. Combining these techniques gives a significant reduction in chemical noise on analytical chromatograms. Less sample is required for sequence analysis since low-level amino acid peaks are more easily identified.

Amino Acid Sequence↗