Marked increases in the consumption of concentrated NaCl solution were elicited in rats by daily injection of the synthetic mineralocorticoid, deoxycorticosterone acetate (DOCA). DOCA-treated rats drank different volumes of NaCl solution depending on its concentration (between 0.15 M and 0.50 M), with less consumed (in milliliters) the more concentrated the fluid was. In consequence, total Na(+...

Herein the extraction method of fucoidan from Laminaria japonica is reported. Firstly, chitosan, chitosan-N-2-hydroxypropyl trimethyl ammonium chloride (HACC), and hexadecyltrimethylammonium bromide (CPAB) were used to extract the fucoidan. The results showed that chitosan was the optimal extractant compared with the other two extractants. After extraction, different aqueous solutions, includin...

The solubility limit data of salts are typically measured in distilled water and not in saline or salt-laden solutions. So, the current study was initiated to measure the solubility limit of major salts in different concentration of NaCl solutions and was compared to the solubility limit of the same salt to that in real seawater solution. A major finding from the experimental results was that t...

1. It is shown that NaCl acts like CaCl(2) or LaCl(3) in preventing the diffusion of strong acids through the membrane of the egg of Fundulus with this difference only that a M/8 solution of NaCl acts like a M/1,000 solution of CaCl(2) and like a M/30,000 solution of LaCl(3). 2. It is shown that these salts inhibit the diffusion of non-dissociated weak acid through the membrane of the Fundulus ...

Isolated human and rabbit corneas were incubated in glutathione bicarbonate Ringer solution (GBR), balanced salt solution (BSS), or 0.9% NaCl solution. The swelling rate of human corneas was 25.5 micron/hr in GBR and significantly increased to 32.7 in BSS and 66.1 in NaCl. The epithelial intracellular potential of human cornea was constant at about 60 mV up to 5 hr of incubation in GBR and decr...

Benzo(a)pyrene (BP), prepared as a suspension of fine crystalline particles attached to particles of ferric oxide in 0.9% NaCl solution, was administered by intratracheal instillation to Syrian golden hamsters. A single administration of 37.5 mg BP with 12.5 mg ferric oxide in 0.5 ml 0.9% NaCl solution induced five bronchogenic carcinomas and five histologically benign respiratory tumors in a t...