PubMed Health⌕ Search

Biomedical subjects

A Cammarata

Publications and source records attributed to A Cammarata.

At least 19 recordsLinked to original sources
PubMed1988

Nipple discharge: surgical significance.

Nipple discharge is an important clinical entity ranking second only to a lump as the most common complaint among 7,588 patients having breast surgery (560/7,588, or 7.4%). In the office and clinic it is even more common, since many patients can be treated medically and do not require an operation. To be significant, a discharge should be true, spontaneous, persistent, and nonlactational. Nipple discharge can be milky, multicolored and sticky, purulent, clear (watery), yellow (serous), pink (serosanguineous), or bloody (sanguineous). Watery, serous, serosanguineous, and sanguineous discharges are surgically significant; while they are most often caused by intraductal papillomas or fibrocystic disease, they can be due to cancer or a precancerous mastopathy. Among 503 patients operated on for one of these types of discharge, 67 (13.3%) had cancer, and 36 (7.2%) had a precancerous mastopathy. Among the 67 patients with cancer, eight (11.9%) had no palpable mass, 11 (16.4%) had negative cytologic findings, and seven (10.4%) had a negative mammogram. The incidence of associated cancers increases when the discharge is, in order of increasing frequency, serous, serosanguineous, sanguineous, or watery, when it is accompanied by a lump, when it is unilateral and from a single duct, when there are positive cytologic or mammographic findings, and when the patient is more than 50 years of age. Milky discharge caused by galactorrhea is treated medically except when caused by a pituitary adenoma. Multicolored sticky discharge due to duct ectasia is also treated medically except in advanced cases. Purulent discharge caused by an abscess requires drainage and a biopsy of the abscess wall. Except in women less than 30 years of age of in those anxious to have children, we advise a complete central duct excision for patients with surgically significant types of discharge. If done carefully, this procedure can yield good cosmetic results.

Adult↗
PubMed1979

Molecular topology and aqueous solubility of aliphatic alcohols.

A physically based method for arriving at topological indexes is described. The derived indexes correlate with molecular surface areas and with the molecular connectivity index. The newly derived index seems to account better for the expected distinctions among primary, secondary, and tertiary alcohol aqueous solubilities. This study suggests that the Del Re method for calculating molecular charges and dipole moments also may be used, without appreciable change, to provide estimates of molecular refraction.

Alcohols↗
PubMed1977

Pattern recognition II: Investigation of structure--activity relationships.

A simple form of pattern recognition is successfully used to classify a set of structurally diverse therapeutic agents. By using only organic structural information, the major pharmacological classes present were correctly identified and the pharmacologically unrelated compounds were separated out. One technique of factor analysis--principal component analysis--is shown to be readily adaptable in preprocessing the data. Simple graphical representation of the results enables their direct interpretation.

Chemistry, Pharmaceutical↗
PubMed1975

Pharmacokinetic model for a primary antibody response.

Antigen distribution and clearance studied in vivo may be viewed as a pharmacokinetic problem complicated by the intervention of the immune response. A model characterizing the clearance of the simple antigen phiX174 from the bloodstream of various experimental animals, as well as the subsequent serum antibody response, was developed. The present model is the simplest of the possible models and no doubt will have to be modified when considering more complex antigens, additional distribution modes, and differences in antibody reactivity. For the primary (IgM) immune response, however, early events in the immunological response can be adequately accounted for in a consistent and quantitative manner.

Animals↗