14 תוצאות
Mastitis is a general term that refers to the inflammation of the mammary gland. It is the most common illness in dairy farms and it has different causes, mainly a great number of germs that infect the gland. These infectious diseases induce gross variations in milk composition, reflected by
The ratio of potassium to sodium concentrations in breast fluids has led other investigators to the subclassification of cysts into two types: 1) apocrine (secretory) cysts with high potassium and low sodium, and 2) attenuated (flattened) cell cysts with low potassium and high sodium content.
Forty human cysts have been examined to determine the relationship between the epithelial lining and the content of sodium (Na+) and potassium (K+) in the cyst fluid. The ratios of Na+ to K+ for cysts lined by flattened epithelium were higher in all cases than the values obtained for cysts lined by
Women with palpable breast cysts which are lined with apocrine epithelium may be at higher risk of developing breast cancer than women with breast cysts which are lined with flattened epithelium, the former group being characterized by intracystic sodium to potassium ratios below 3, while the latter
The sodium (Na) and potassium (K) concentrations were measured in the fluid of 169 breast cysts aspirated from 101 consecutive patients presenting to a single clinic. The Na/K ratio was used to define cysts as either apocrine (Na/K less than 3) or flattened (Na/K less than 3) in type. There was no
The concentrations of sodium and potassium and the content of ferritin and transferrin, proteins considered as potential markers for identifying cells undergoing divisional activity, were measured in fluid from 30 human breast cysts. On the basis of the relative electrolyte concentrations, two main
The composition of 40 human breast microcysts, dissected from eight biopsy and 14 mastectomy specimens has been analysed. All contained high concentrations of the androgen conjugate, dehydroepiandrosterone sulphate, the median value being more than 1000 times that of plasma. In ten cysts sufficient
Gross cystic breast disease may be associated with a higher risk of breast cancer. There are two groups of mammary cysts: those lined by apocrine epithelium (intracystic sodium to potassium (Na:K) ratio < 3) and those lined by flattened epithelium (intracystic Na:K ratio > 3). Cell adhesion
Gross cystic breast disease is a common condition. Women with apocrine breast cysts may be at higher risk of breast cancer than women with cysts which are lined by flattened epithelium. Apocrine cysts have been shown to be associated with higher intracystic levels of dehydroepiandrosterone sulphate
The concentration of potassium (K+) and sodium (Na+) was measured in breast cyst fluid (BCF) from 611 cysts greater than 3 ml aspirated in 520 women with gross cystic disease of the breast. These women were enrolled, from 1983 on, in a cohort study aimed at assessing the relationship between cyst
In 28 breast cyst fluids obtained from 20 patients (age 29-65 years) sodium, potassium and the sulfates (S) of estrone (E1), estradiol (E2), dehydroepiandrosterone (DHEA) and androsterone (A) were determined. The radioimmunoassays (RIA) used were validated for this particular biological fluid.
We determined the biochemical composition of fluid aspirated from 52 breast cysts and classified the cysts into types I and II on the basis of the potassium-to-sodium (K/Na) ratio in the fluid. In this study, we confirmed the presence of prostate-specific antigen (PSA) in some breast cyst fluids,
In recent years, several studies focused on the biochemical analysis of breast cyst fluid composition. It has been shown that breast cysts lined by apocrine epithelium contain higher levels of potassium and dehydroepiandrosterone-sulphate as compared to cysts lined by flattened cells, and that women
Gross cystic breast disease (GCBD) is one of the most common breast diseases, and women with apocrine (type I) cysts are at higher risk of developing breast cancer than women with flattened (type II) cysts. Type I cysts contain fluid with an electrolyte composition similar to that of intracellular