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PubMed1987

Suppressed humoral immunity in chicks fed diets deficient in sodium, chloride, or both sodium and chloride.

Four experiments were conducted to determine the effect of Na and Cl on the antibody response to sheep red blood cells (SRBC). In the first two experiments, Na and Cl were supplemented in the diet together as NaCl at levels from 0 to .75%. In two additional experiments, Na and Cl were supplemented independently; levels varied from .04 to .24% total dietary Na and from .07 to .36% total dietary Cl. Results of the first two experiments indicated that dietary Na and Cl levels above that found in a corn-soybean diet improved the antibody response to SRBC. Additional studies showed that the humoral immunity was significantly suppressed when chicks consumed diets with less than .14% Na and .17% Cl. Increasing dietary Cl from .17 to .27% when dietary Na was .04% suppressed the antibody response. Also, increasing dietary Cl from .21 to .36% when dietary Na was .14 or .24% suppressed the antibody response. The immunosuppression of the humoral response of chicks was determined to be not related to the decreased feed intake resulting from inadequate Na and Cl in the diet.

Animals↗
PubMed1999

Intravenous administration of hypertonic sodium chloride solution with dextran or isotonic sodium chloride solution for treatment of septic shock secondary to pyometra in dogs.

OBJECTIVE: To determine effects of i.v. administration of hypertonic saline (7.5% NaCl) solution with 6% dextran 70 (HSSD) or isotonic saline (0.9% NaCl) solution (ISS) to dogs with septic shock secondary to pyometra. DESIGN: Prospective, randomized, clinical study. ANIMALS: 14 client-owned dogs with septic shock secondary to pyometra. PROCEDURE: Prior to emergency ovariohysterectomy, catheters were placed in pulmonary and femoral arteries of each dog to evaluate hemodynamic and oxygenation status. Immediately prior to surgery, 7 dogs received HSSD (4 ml/kg [1.82 ml/lb] of body weight, i.v.) and 7 dogs received ISS (32 ml/kg [14.54 ml/lb], i.v.) during a 5-minute period. Measurements of hemodynamic and oxygenation variables were obtained before and 5 and 20 minutes after administration of fluids. RESULTS: Mean arterial pressure (MAP) increased significantly 5 and 20 minutes after administration of HSSD, whereas ISS did not affect MAP. However, cardiac output, cardiac index, and oxygen delivery increased and hematocrit decreased after both treatments. Oxygen consumption and extraction rate and degree of acidosis did not improve after either treatment. CONCLUSIONS AND CLINICAL RELEVANCE: Intravenous administration of small volumes of HSSD to dogs with septic shock secondary to pyometra resulted in improvement of hemodynamic and oxygenation status. Although cardiac output, cardiac index, and oxygen delivery improved after administration of a volume of ISS equal to 8 times that of HSSD, MAP increased to > 80 mm Hg only after treatment with HSSD. Administration of HSSD may be an effective treatment for septic shock in dogs.

Animals↗