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Related Concept Videos

Composition of Body Fluids01:29

Composition of Body Fluids

Water functions as a solvent accommodating various solutes, which can be categorized under electrolytes and non-electrolytes. Non-electrolytes are usually held together by covalent bonds, restricting them from dissociating in solution, thereby leading to a lack of electrically charged components upon dissolving in water. They are predominantly organic molecules, such as glucose, creatinine, and urea. Electrolytes, on the other hand, are compounds that can break down into ions in water.
Introduction to Electrolytes01:33

Introduction to Electrolytes

In humans, electrolytes play a vital role in various physiological processes. Balancing electrolyte levels is essential for normal body functions; their imbalance can be life-threatening. The major electrolytes include sodium, potassium, chloride, calcium, phosphate, and bicarbonate. They are primarily involved in physiological processes, such as nerve signal transmission, membrane trafficking, muscle contraction, buffering body fluids, and balancing water levels in the body.
Role of Sodium
One...
Roles of Electrolytes: Chloride and Bicarbonate01:29

Roles of Electrolytes: Chloride and Bicarbonate

Chloride ions contribute to the osmotic pressure gradient distinguishing the intracellular fluid (ICF) from the extracellular fluid (ECF). They counterbalance positively charged ions in the ECF and ensure its electrochemical stability. The renal system's process of chloride absorption and release generally mirrors that of sodium ions.
Conditions such as hypochloremia can arise from insufficient chloride reabsorption by the kidneys, often compounded by extended bouts of diarrhea, vomiting, or...
Transcellular Transport of Solutes01:23

Transcellular Transport of Solutes

Transcellular transport of solutes is the movement of substances like monosaccharides and amino acids through polarized cells. This transport mechanism is primarily seen in epithelial and endothelial cells aided by membrane transport proteins such as channels and transporters. The tight junctions between these cells confine the membrane proteins to the two sides of the cell. The epithelial cells have distinct apical and basolateral domains. In contrast, the endothelial cells show the luminal...
Roles of Electrolytes: Sodium and Potassium01:24

Roles of Electrolytes: Sodium and Potassium

Sodium plays a crucial role in maintaining fluid and electrolyte balance and overall bodily homeostasis. Sodium balance is primarily regulated by kidney function, which adjusts sodium elimination to match dietary intake and maintain proper electrolyte levels. Sodium is the most abundant cation in the extracellular fluid (ECF) and is found in salts such as sodium chloride (NaCl) and sodium bicarbonate (NaHCO3). Although cellular plasma membranes are relatively impermeable to sodium, its role in...
Cytotoxic Edema: Pathophysiology01:21

Cytotoxic Edema: Pathophysiology

Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...

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Isolation of Proximal Fluids to Investigate the Tumor Microenvironment of Pancreatic Adenocarcinoma
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Electrolytes and trace elements in human breast cyst fluid.

Ali Riza Sişman1, Banu Sis, Tülay Canda

  • 1Department of Biochemistry, Faculty of Medicine, Dokuz Eylul University, Inciralti, Izmir, Turkey. aliriza.sisman@deu.edu.tr

Biological Trace Element Research
|October 31, 2008
PubMed
Summary

Breast cyst fluid analysis reveals distinct electrolyte and trace element profiles for apocrine (type I) and flattened (type II) cysts. These biochemical differences may aid in classifying breast cysts and assessing cancer risk.

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Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts

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Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts
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Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts

Published on: May 16, 2020

Area of Science:

  • Biochemistry
  • Oncology
  • Medical Diagnostics

Background:

  • Gross cystic breast disease (GCBD) is common, with apocrine (type I) cysts linked to higher breast cancer risk than flattened (type II) cysts.
  • Type I cysts have intracellular fluid-like electrolytes (Na/K ratio <3), while type II cysts resemble plasma (Na/K ratio >3).
  • While BCF electrolytes are studied, trace element content remains less explored.

Purpose of the Study:

  • To compare electrolyte and trace element concentrations, including Na, K, Ca, P, Zn, Cu, and Fe, in breast cyst fluid (BCF) from type I and type II GCBD.
  • To investigate the utility of these biochemical markers in classifying breast cyst subtypes.

Main Methods:

  • Sixty-three BCF samples from premenopausal women with GCBD were analyzed post-needle aspiration.
  • Electrolytes (Na, K, Ca, P, Fe) were measured using an autoanalyzer; trace elements (Cu, Zn) by atomic absorption spectrophotometry.
  • Statistical analysis compared concentrations and ratios between type I and type II cysts.

Main Results:

  • Type I cysts showed significantly higher K, lower Na, higher phosphorus, and lower Na/K ratios (median 0.32) compared to type II cysts (median 6.2).
  • Type I cysts had higher median Zn, Cu, and Fe concentrations.
  • Type II cysts exhibited higher ratios of Na.Cu/K.Zn, Na.Cu/K.Fe, and Na.Zn/K.Fe, with significant correlations between Na/K and Cu/Fe.

Conclusions:

  • BCF electrolyte and trace element profiles differ significantly between type I and type II breast cysts.
  • These biochemical differences, particularly trace element content, may offer a valuable method for classifying breast cysts.
  • Further research with larger cohorts is warranted to validate these findings for clinical application.