breast cyst/بوتاسيوم

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Correlation of concentrations of estriol-3-sulfate with those of potassium and sodium in human breast cyst fluid.

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Estriol-3-sulfate (E3-3S) was assayed in 92 specimens of human breast cyst fluid (BCF) obtained by needle aspiration from women with fibrocystic disease. The concentrations of K+ and Na+ were determined in the same samples. The median concentration of E3-3S in the fluids from premenopausal women

Relationships of Na+ and K+ concentrations to GRP, CGRP, and calcitonin immunoreactivities and Na+,K(+)-ATPase (NKA) inhibitory activity in human breast cyst fluid.

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BACKGROUND Although the etiology of gross cystic disease of the breast is unknown, elevated cyst concentrations of potassium (K+) (> 60 mM/L) may be related to symptoms. The purpose of this study was to clarify the mechanism(s) of K+ accumulation in breast cysts. METHODS We assayed cyst fluids for

Possible regulation of soluble ICAM-1 levels by interleukin-1 in a sub-set of breast cysts.

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There are 2 main groups of breast cysts characterized by their intracystic sodium-to-potassium ratios. Women who have intracystic Na/K < 3 may have a higher risk of developing breast cancer than those who have intracystic Na/K > 3. The cell adhesion molecule, ICAM-I, has been shown to be inducible

Risk of breast cancer in women with palpable breast cysts: a prospective study. Edinburgh Breast Group.

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BACKGROUND 7% of women in the western world develop palpable breast cysts. Studies of the relation between cysts and breast cancer have conflicting results. There are two clearly defined types of cyst. We investigated whether one cyst type is associated with a higher rate of breast-cancer

Relationship between the concentrations of estriol sulfate and estrone sulfate in human breast cyst fluid.

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Estriol-3-sulfate (E3S) is present in human breast cyst fluid (BCF) in median levels of 8.7-10.4 nmol/L, yet is barely detectable in the serum (less than 0.034 nmol/L). The source of this huge concentration of E3S is unknown. It may accumulate from blood by active transport or be synthesized and

Melatonin and estrogen in breast cyst fluids.

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Increased breast cancer risks have been reported among women with gross cystic breast disease (GCBD), although the mechanism for this increase remains unexplained. Relationships between GCBD characteristics, breast cancer risk factors, and the biochemical composition and growth properties of 142

Esterase activity in human breast cyst fluid: associations with steroid sulfates and cations.

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Human breast cyst fluid (BCF) contains an esterase that on the basis of electrophoretic mobility and response to inhibitors differs from those found in the plasma. From a total of 384 BCF samples analyzed for esterase using p-nitrophenyl hexanoate as substrate, 149 (39%) showed significant activity.

Classification of human breast cysts according to electrolyte and androgen conjugate composition.

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One hundred human breast cyst fluids have been analysed for sodium (Na+), potassium (K+) and dehydroepiandrosterone (DHA) sulphate. Concentrations varied greatly between individual cyst fluids, Na+ from 20 to 185 mmol/l, K+ from 5 to 160 mmol/l and DHA-sulphate from 1.5 to 87 mumol/l. Analysis of

Steroid and cation correlations in human breast cyst fluid: preliminary findings.

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Gross cystic disease (GCD) of the breast imparts a minimal risk for the development of breast cancer. Relative to serum, breast cyst fluid (BCF) in patients with GCD is highly concentrated in androgens, estrogens, certain enzymes, and bioactive polypeptides. In addition, the cations, sodium and

[Relationship between estrogen, progesterone, total testosterone, androstenedione, and epidural growth factor in blood and breast cyst fluid].

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In breast cyst fluid obtained from 50 patients age (47.1 +/- 2.3) sodium, potassium, oestrone (E1), oestradiol (E2) androgens, progesterone, (P) and Epidermal Growth Factor--EGF were determined. Markedly higher oestrogens, progesterone, testosterone, and EGF-levels were detected in cyst fluid than

Kidney and breast cysts: a comparative study of fluids.

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The contributions of amino acids to the overall osmotic activity of cyst fluids were sought in this comparative study of fluids from the cysts of autosomal dominant polycystic disease (ADPKD) and gross cystic disease of the breast (GCDB). Fluids (n = 18) from 18 women with GCDB and from 8 patients

Cytokines in human breast cyst fluid.

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Gross cystic breast disease is a common benign disorder in which palpable cysts occur in the breast and are normally treated by aspiration of the contents. The cysts are classified as either Type 1, containing a high level of potassium ions and a low level of sodium ions, or as Type 2, with low

Evaluation of chemical parameters in breast cyst.

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During our studies on breast diseases, the following biochemical values were measured: chlorine, sodium, potassium and albumin. We examined 153 syringe biopsies from women aged between 34 and 55 years, and an analysis of the above mentioned parameters enabled us to classify the breast cyst fluid

The morphological basis of human breast cyst populations.

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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

Mitogenic peptides in breast cyst fluid: relationship with intracystic electrolyte ratios.

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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

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Herbal & Natural Medicine

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