The importance of renal net acid excretion as a determinant of fasting urinary calcium excretion.

The importance of renal net acid excretion as a determinant of fasting urinary calcium excretion.
复制标题

肾净酸排泄作为空腹尿钙排泄的决定因素的重要性。

DOI:
10.1038/ki.1986.60
复制
发表时间:
1986
影响因子:
19.6
通讯作者:
Cheung,HS
Cheung,HS
中科院分区:
医学1区
文献类型:
--
作者:
LemannJr,J;Gray,RW;Maierhofer,WJ;Cheung,HS

文献摘要

参考文献

被引文献

相似文献

肾净酸排泄作为空腹尿钙排泄的决定因素的重要性。为了评估固定产酸率变化对空腹尿 Ca/肌酐的影响,我们研究了 5 名健康男性,他们在对照条件下(血清 HC0327.3 ± 2.6 SD mEq/L 和血液 H+ 40.4 ± 1.5 µEq/L)以及服用 NH4C1 3.0 mEq/kg/天期间(血清 HC0322.5 ± 4.9毫当量/升;P < 0.025,且 H+ 46.8 ± 2.3 毫当量/升;P < 0.005)。除了预期每日尿钙排泄量从 5.2 ± 2.0 毫摩尔/天增加至 12.5 ± 3.0 毫摩尔/天外; P < 0.001,每日尿净酸排泄量从 48 ± 32 mEq/天增加至 257 ± 33 mEq/天; P < 0.001,我们观察到空腹尿净酸/肌酐排泄量也从 2.9 ± 1.2 增加至 11.1 ± 1.2 mEq/mmole 肌酐; P < 0.001,空腹尿 Ca/肌酐从 0.158 ± 0.111 增加至 0.456 ± 0.109 毫摩尔/毫摩尔肌酐; P<0.005。酸中毒期间尿液中出现的额外 Ca 最终反映了净骨吸收的增加,因为每日尿羟脯氨酸排泄量从 0.232 ± 0.062 增加到 0.377 ± 0.108 毫摩尔/天; P<0.01。由于饮食成分的变化会导致固定的酸产生,从而导致肾脏净酸排泄在约 0 至 200 mEq/天之间变化,因此这样的范围可能会导致空腹 Ca/肌酐在 0.09 至 0.37 毫摩尔/毫摩尔(0.03 至 0.13 mg/mg)之间变化,在评估空腹 Ca/肌酐时应考虑在内。
The importance of renal net acid excretion as a determinant of fasting urinary calcium excretion. To evaluate the effects of changing rates of fixed acid production on fasting urine Ca/creatinine, we studied five healthy men fed constant diets during control conditions (serum HC0327.3 ± 2.6 SD mEq/liter and blood H+ 40.4 ± 1.5 µEq/liter) and then during the administration of NH4C1 3.0 mEq/kg/day (serum HC0322.5 ± 4.9 mEq/liter; P < 0.025, and H+ 46.8 ± 2.3 mEq/liter; P < 0.005). In addition to the expected increase in daily urinary Ca excretion from 5.2 ± 2.0 to 12.5 ± 3.0 mmole/day; P < 0.001 as daily urinary net acid excretion was increased from 48 ± 32 to 257 ± 33 mEq/day; P < 0.001 we observed that fasting urinary net acid/creatinine excretion also increased from 2.9 ± 1.2 to 11.1 ± 1.2 mEq/mmole creatinine; P < 0.001 and fasting urine Ca/creatinine increased from 0.158 ± 0.111 to 0.456 ± 0.109 mmole/mmole creatinine; P < 0.005. The additional Ca appearing in the urine during acidosis ultimately reflected augmented net bone resorption since daily urinary hydroxyproline excretion was increased from 0.232 ± 0.062 to 0.377 ± 0.108 mmole/day; P < 0.01. Since variations in diet composition can cause fixed acid production and thus renal net acid excretion to vary from about zero to 200 mEq/day, such a range could cause fasting Ca/creatinine to vary from 0.09 to 0.37 mmole/mmole (0.03 to 0.13 mg/mg) and should be taken into account in the evaluation of fasting Ca/creatinine.
老年男性和女性蛋白质诱发高钙尿症机制的研究。
DOI: --
发表时间: 1980
期刊: Journal of NutriLife
影响因子: --
作者:
Sally A. Schuette;MichaelB Zemel;H. Linkswiler
通讯作者: H. Linkswiler
DOI: 10.1136/bmj.1.6060.585
发表时间: 1977
期刊:
影响因子: --
作者:
R. Watts
通讯作者: R. Watts
每天摄入 500 毫克钙的年轻男性蛋白质摄入量对钙平衡的影响。
DOI: --
发表时间: 1974
期刊: Journal of NutriLife
影响因子: --
作者:
C. R. Anand;H. Linkswiler
通讯作者: H. Linkswiler
膳食钙和血清 1,25-(OH)2-维生素 D 浓度是健康男性钙平衡的决定因素。
DOI: 10.1038/ki.1984.212
发表时间: 1984
影响因子: 19.6
作者:
Maierhofer,WJ;LemannJr,J;Gray,RW;Cheung,HS
通讯作者: Cheung,HS
慢性代谢性酸中毒对人体25-OH-维生素D代谢和血清甲状旁腺激素缺乏影响。
DOI: --
发表时间: 1976
影响因子: 5.8
作者:
Hugo P. Weber;Richard W. Gray;Jesus H. Dominguez;Jacob Lemann
通讯作者: Jacob Lemann