对从美洲驼和羊驼的正常眼睛获取的房水进行分析。

Aubin M L, Gionfriddo J R, Mama K R, Powell C C

Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins 80523, USA.

Am J Vet Res. 2001 Jul;62(7):1060-2. doi: 10.2460/ajvr.2001.62.1060.

OBJECTIVE

To evaluate composition of aqueous humor obtained from normal eyes of llamas (Lama glama) and alpacas (Lama pacos).

SAMPLE POPULATION

Aqueous humor obtained from 10 male llamas and 10 male alpacas.

PROCEDURE

All animals had normal eyes, as determined by ocular examination. Aqueous humor samples were obtained via paracentesis of the anterior chamber of animals that were heavily sedated. Chemical analysis included measurement of concentrations of sodium, potassium, magnesium, chloride, bicarbonate, phosphorus, and glucose as well as osmolality and pH.

RESULTS

With the exception of potassium concentrations, values for aqueous humor composition did not differ significantly between llamas and alpacas. Mean +/- SD values for llamas and alpacas, respectively, were: sodium, 154.7 +/- 2.1 and 152.7 +/- 2.1 mEq/L; potassium, 5.3 +/- 0.4 and 4.6 +/- 0.4 mEq/L; magnesium, 1.8 +/- 0.1 and 1.7 +/- 0.1 mg/dl; chloride, 130.0 +/- 1.6 and 127.0 +/- 3.3 mEq/L; bicarbonate, 19.2 +/- 1.5 and 20.2 +/- 2.3 mEq/L; phosphorous, 2.7 +/- 0.3 and 2.5 +/- 0.4 mg/dl; glucose, 80.3 +/- 3.9 and 80.8 +/- 7.3 mg/dl; total protein, 29.0 +/- 8.6 and 31.5 +/- 10.1 mg/dl; and osmolality, 305.8 +/- 11.8 and 306.2 +/- 4.9 mOsm. The pH ranged from 7.5 to 8.0 for both species. Potassium concentrations were significantly higher in llamas than alpacas.

CONCLUSIONS AND CLINICAL RELEVANCE

Except for potassium, composition of aqueous humor did not differ significantly between llamas and alpacas. Aqueous humor composition of llamas and alpacas is similar to that of other species that have been examined.

目的

评估从美洲驼（小羊驼）和羊驼（无峰驼）正常眼睛获取的房水成分。

样本群体

从10只雄性美洲驼和10只雄性羊驼获取的房水。

程序

经眼科检查确定，所有动物眼睛均正常。通过对深度镇静的动物进行前房穿刺获取房水样本。化学分析包括测量钠、钾、镁、氯、碳酸氢盐、磷和葡萄糖的浓度以及渗透压和pH值。

结果

除钾浓度外，美洲驼和羊驼房水成分的值无显著差异。美洲驼和羊驼的平均值±标准差分别为：钠，154.7±2.1和152.7±2.1 mEq/L；钾，5.3±0.4和4.6±0.4 mEq/L；镁，1.8±0.1和1.7±0.1 mg/dl；氯，130.0±1.6和127.0±3.3 mEq/L；碳酸氢盐，19.2±1.5和20.2±2.3 mEq/L；磷，2.7±0.3和2.5±0.4 mg/dl；葡萄糖，80.3±3.9和80.8±7.3 mg/dl；总蛋白，29.0±8.6和31.5±10.1 mg/dl；渗透压，305.8±11.8和306.2±4.9 mOsm。两个物种的pH值范围均为7.5至8.0。美洲驼的钾浓度显著高于羊驼。