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1.
采用单因子随机分组设计,以真可消化磷(TdP)为指标,配制了5种生长猪试验日粮,并使其总钙与TdP的比例为2∶1.通过对生长性能和血清生化指标等的评定,对TdP需要量进行了初步研究.结果为:(1)得出生长猪平均日增重(ADG)随日粮TdP变化的多元方程;(2)拟合出了料肉比(F/G)随日粮TdP含量变化的多元方程;(3)根据血清无机磷浓度与日粮TdP含量的关系,也拟出了多元方程;(4)血清碱性磷酸酶(ALP)活性随着日粮TdP含量的升高呈下降趋势(P>0·05);(5)血清钙浓度基本不受日粮真可消化磷含量的影响.血清钙浓度随日粮钙含量的变化趋势,与血清无机磷随日粮TdP含量变化的趋势相似,且各组之间差异不显著(P>0·05).由此,本研究推荐生长猪真可消化磷的需要量为0·34%,相应地,总钙的需要量为0·68%. 相似文献
2.
微量元素锌、镁、钙与脑梗死的关系 总被引：1，自引：0，他引：1
目的 :观察急性脑梗死患者血清锌、镁、钙的变化 ,探讨其潜在的作用。方法 :检测 5 0例确诊为急性脑梗死患者的早期血清锌、镁、钙含量并与对照组比较。结果 ;急性脑梗死患者与对照组比较血清锌、镁含量减少 (P<0 .0 1 ) ,钙略升高 ,(但无统计学意义 )。结论 :急性脑梗死时血清锌、镁含量下降 ,钙含量略增高 ,证实微量元素锌、镁、钙参与了缺血性脑梗死的病理生理过程 相似文献
3.
在0‰、2‰，4‰、6‰、8‰盐度下测定盐度对沙塘鳢血细胞及血清生化成分的影响。结暴显示，红细胞数量在各盐度下无显著差异，白细胞数量随盐度上升先增大后减小。盐度对血清各项生化指标也有显著影响，血清钙、血清胆固醇和血清总脂含量随盐度的上升显著增大，血清总蛋白随盐度上升显著减小。 相似文献
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《西藏科技》2017,(8)
为探索拉萨不同县(区)养分状况差异,通过拉萨市近年来测土配方施肥项目土壤化验数据分析和田间调查汇总,文章对拉萨不同县(区)养分状况进行方差分析和多重比较研究,结果表明:墨竹工卡县有机质和全氮含量高,有机质含量与其余农业县(区)达极显著水平(部分为显著水平),全氮含量与曲水县、林周县达极显著水平,与城关区、全市平均含量达显著水平。曲水县有机质和全氮含量与其余农业县区均达极显著水平。墨竹工卡县有效磷含量与达孜县、林周县差异极显著,与堆龙德庆县差异显著;城关区有效磷含量与达孜县、林周县差异显著;曲水县有效磷含量与达孜县、林周县存在显著差异;尼木县有效磷含量与达孜县、林周县存在显著差异。尼木县速效钾含量与除林周县以外的拉萨各农业县速效钾含量差异极显著,与林周县速效钾含量差异显著;林周县与达孜县、墨竹工卡县、堆龙德庆县、城关区、全市平均差异极显著;曲水县与达孜县、墨竹工卡县、堆龙德庆县、城关区存在极显著差异;全市平均速效钾含量与达孜县、墨竹工卡县存在极显著差异,与堆龙德庆县差异显著;城关区与达孜县差异极显著,与墨竹工卡县差异显著;堆龙德庆县与达孜县差异显著。 相似文献
6.
选取广西区6个国有林场按树人工林的200个土壤样品进行土壤养分测定,分析其养分变异特征和相关性,通过养分分级评定和背景值对比分析桉树人工林土壤养分现状以及桉树种植对土壤养分影响程度。试验结果表明,桉树人工林速效磷变异系数最大,其次为交换性钙,两个指标皆达到强变异性,pH值变异性最小,为弱变异性,其他指标皆为中等变异性。pH值与交换性钙、全氮和全钾、水解氮和速效钾、交换性钙和交换性镁的相关性存在显著水平的正相关。桉树人工林土壤养分现状与其背景值趋势相符,表现出缺磷、缺钾现象。其中速效磷、全钾和速效钾三个指标对比背景值含量偏低。 相似文献
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采用水培试验研究营养液中镁、硼、锰、钼四种元素的供应水平对莴笋体内营养元素含量和累积量的影响。结果表明：硼是莴笋生长发育的主要限制因子，其供应水平对莴笋体内多种元素的含量和累积量有显著影响；镁、钼的供应水平对锌、铜、铁、锰、钙等矿质元素的累积量影响不大，钼的供应水平仅对锰和铜在莴笋体内累积量有显著影响；钾、钙、镁等元素在莴笋植株中的含量受多种养分供应水平的影响，缺硼时锌在植株内富集，含量远高于对照；莴笋体内矿质元素的含量是累积量与生长量二者综合作用的结果。 相似文献
9.
盐度对沙塘鳢血细胞数量及血清生化成分的影响 总被引：1，自引：0，他引：1
在0‰、2‰、4‰、6‰、8‰盐度下测定盐度对沙塘鳢血细胞及血清生化成分的影响。结果显示,红细胞数量在各盐度下无显著差异,白细胞数量随盐度上升先增大后减小。盐度对血清各项生化指标也有显著影响,血清钙、血清胆固醇和血清总脂含量随盐度的上升显著增大,血清总蛋白随盐度上升显著减小。 相似文献
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Urinary abnormalities were evaluated in 100 renal stone patients with first episode of renal stone having age 22 to 45 years
from both sex and compared to 100 normal healthy control group having same age group from both sex. Twenty-four hours urinary
oxalate, calcium, uric acid, sodium, magnesium, phosphorus and citrate were estimated. The urinary pH was also determined.
In stone formers urinary oxalate, calcium, sodium and uric acid excretions were significantly higher when compared with control
group. Whereas citrate, phosphate and magnesium excretion were significantly lower in stone formers when compared with control.
The pH of urine in stone formers was lower than the controls. High dietary intake of purine rich diet causes elevated excretion
of uric acid, which leads to calcium oxalate crystal formation and precipitation. Other risk factors such as urinary oxalate,
calcium also related to formation of renal calculi.
Hypocitraturia is the main cause of renal calculi along with hypomagnesiuria and hypophosphaturia in the patient of Marathwada
region. On the basis of urinary abnormalities further stone formation in the patient can be prevented by dietary modifications. 相似文献
12.
Pradeep Naik B. Premsagar M. Mallikarjuna 《Indian journal of clinical biochemistry : IJCB》2015,30(1):94-98
The acute renal failure is the frequent medical complication observed in liver transplant patients. The objective of this study was to determine the cause of acute renal failure in post liver transplant patients. A total of 70 patients who underwent (cadaveric 52, live 18) liver transplantation were categorized based on clinical presentation into two groups, namely hepatorenal failure (HRF, n = 29), and Hepatic failure (HF, n = 41). All the patients after the liver transplant had received tacrolimus, mycophenolate and steroids. We analyzed the modification of diet in renal disease, (MDRD) serum urea, creatinine and albumin before and after 5th and 30th day of liver transplant and data was categorized into survivors and non-survivors group. In HRF survivor group, serum creatinine, and urea levels were high and, albumin, MDRD were low in pre- transplant and reached to normal levels on 30th day of post transplant, and 79.3 % of patients in this group showed resumption of normal kidney function. On the contrary in HRF nonsurvivor group, we did not observed any significant difference and 20.7 % of patients showed irreversible changes after the liver transplant. In HF survivor group, 82.9 % of liver failure patients did not show any deviation in serum creatinine, urea, albumin and MDRD, whereas in HF non survivor group, 17.1 % of liver failure patients who had HCV positive before the transplant developed acute renal failure. The levels of creatinine, urea, albumin and MDRD were normal before the transplant and on day 30th, the levels of albumin and MDRD were significantly low whereas serum urea, creatinine levels were high. In conclusion, based on these observations, an diagnosis and treatment of Acute renal failure is important among the liver transplantation cases in the early postoperative period. 相似文献
13.
Effect of pyridoxine (Vitamin-B6) supplementation on calciuria and oxaluria levels of 20 normal healthy persons and 17 urinary stone patients has been studied.
Mean 24 hr urinary calcium and oxalate levels of controls (healthy persons) and stone patients were estimated in presupplementation
period and at every 20 days interval during supplementation. Stone patients were divided into two groups viz., mild hyperoxaluriacs
and moderate hyperoxaluriacs, based on their pre-supplementation (base line) oxaluria levels. 60 days of pyridoxine supplementation,
at the rate of 10 mg/day, resulted in a significant decrease (p<0.01 for mild hyperoxaluriacs and p<0.001 for moderate hyperoxaluriacs)
in mean 24 hr urinary oxalate levels of urinary stone patients. The corresponding decrement in mean oxaluria level of controls
was, however, only mild. The decrease of mean calciuria level of controls as well as stone patients, upon pyridoxine supplementation,
were also found to be only mild and not significant. Utility of pyridoxine therapy in oxalate urolithiasis has been discussed
in the light of results. 相似文献
14.
Urinary citric acid and calcium levels have been estimated in the urine of 20 normal healthy persons as well as 12 urinary
stone patients. Inhibition efficiency of these urine samples towards the mineralisation of urinary stone forming minerals,
viz., calcium phosphate, oxalate or carbonate, has been studied in an experimental model. Statistical correlation of the above
data has been made by computing the coefficient of determination and unexplained variance. Clinico-biochemical indexing of
calcium urolithiasis risk factor has been attempted in the light of the data. 相似文献
15.
P. Chandran N. K. Kuchhal P. Garg C. S. Pundir 《Indian journal of clinical biochemistry : IJCB》2007,22(2):145-150
Chemical composition of gall stones is essential for aetiopathogensis of gallstone disease. We have reported quantitative
chemical analysis of total cholesterol bilirubin, calcium, iron and inorganic phosphate in 120 gallstones from haryana. To
extend this chemical analysis of gall stones by studying more cases and by analyzing more chemical constituents. A quantitative
chemical analysis of total cholesterol, total bilirubin, fatty acids, triglycerides, phospholipids, bile acids, soluble proteins,
sodium potassium, magnesium, copper, oxalate and chlorides of biliary calculi (52 cholesterol, 76 mixed and 72 pigment) retrieved
from surgical operation of 200 patients from Haryana state was carried out. Total cholesterol as the major component and total
bilirubin, phospholipids, triglycerides, bile acids, fatty acids (esterified), soluble protein, calcium, magnesium, iron,
copper, sodium, potassium, inorganic phosphate, oxalate and chloride as minor components were found in all types of calculi.
The cholesterol stones had higher content of total cholesterol, phospholipids, fatty acids (esterified), inorganic phosphate
and copper compared to mixed and pigment stones. The mixed stones had higher content of iron and triglycerides than to cholesterol
and pigment stones. The pigment stones were richer in total bilirubin, bile acids, calcium, oxalate, magnesium, sodium, potassium,
chloride and soluble protein compared to cholesterol and mixed stones. Although total cholesterol was a major component of
cholesterol, mixed and pigment gall stone in Haryana, the content of most of the other lipids, cations and anions was different
in different gall stones indicating their different mechanism of formation. 相似文献
16.
Alka Singh Sheila Uthappa V. Govindaraju T. Venkatesh 《Indian journal of clinical biochemistry : IJCB》2002,17(1):25-28
The present study conducted on twenty-five uncomplicated cases of acute myocardial infarction diagnosed by clinical and electrocardiographic
findings indicated significantly increased level of cardiac Troponin-T and increased activities of the enzymes total creatine
kinase, creatine kinase-MB, aspartate transaminase and lactate dehydrogenase as compared to the twenty-five healthy control
subjects. The level of cardiac Troponin-T and the activities of the enzymes total creatine kinase, creatine kinase-MB, aspartate
transaminase and lactate dehydrogenase was found to be higher in “Q” wave myocardial infarction patients as compared to the
non-“Q” wave and the controls. Since cardiac Troponin-T has been shown to increase in unstable angina and renal failure without
cardiac disease and creatine kinase-MB activity has been found to be normal in patients with unstable angina and increase
very slightly in patients with renal failure, it was concluded that a combination of cardiac Troponin-T and creatine kinase-MB
activity was sufficient for the early diagnosis of acute myocardial infarction. 相似文献
17.
目的：为了解慢性肾衰竭（ CRF）患者的心脏损害情况,并探讨这种心脏损害的影响因素。方法：选择2012年一月至2013年1月收治的慢性肾衰竭30例患者作为观察组,另选同一时间段未患慢性肾衰竭30例患者作为对照组。将超声心动图检查两组患者的LAD,LAPWs,LAPWd,IVSTd,IVSTs, SV,EF等数据进行评价,分析慢性肾衰竭后患者心功能受损的情况。结果：检查后的两组数据显示,肾衰竭组LAD,LAPWs,LAPWd,IVSTd,IVSTs较对照组显著增加,具有患者心脏彩超异常者占93.3%（28/30）,具有统计学意义（p〈0.05）,观察组SV,EF,A,E较对照组明显增高,异常者为96.6%（29/30）。对照组心脏超声主要表为左室扩大、左室肥厚、左房扩大、瓣膜反流及心功能不全,尤以左室舒张功能损害为主。这些心脏损害的主要影响因素有尿毒症毒素、高血压、贫血。尽早透析,积极控制高血压,纠正贫血是预防和治疗CRF患者心脏并发症的主要手段。结论：对于肾衰竭患者而言,心脏彩超是一种无创性的较准确地反心脏形态和心功能受损的辅助检查方法。 相似文献
18.
C. S. Parameswari B. Vijayageetha R. Vijayakumar 《Indian journal of clinical biochemistry : IJCB》2006,21(1):131-136
The oxidative modification of lipoprotein especially low density lipoprotein (LDL) plays a key role in the initiation and
progression of atherosclerosis. Serum apolipoproteinB (apoB) level is found to be an important marker for atherosclerosis.
The present paper focuses on the measurement of serum apoB levels and the effect of Vitamin E, Vitamin C and reduced glutathione
on the copper ion induced oxidation of LDL + VLDL (VLDL-Very Low Density Lipoprotein) lipoprotein fraction isolated from the
serum of chronic renal failure (CRF) and renal transplanted patients. The level of apoB is significantly higher in the serum
of transplanted patients when compared to CRF patients and normal subjects. The level of TBARS formed in oxidized LDL + VLDL
lipoprotein fraction of CRF and renal transplanted patients are significantly increased than normal even in the presence of
antioxidants but the level of TBARS produced, with antioxidants is comparatively lesser than that produced by oxidized lipoprotein
fraction without antioxidants. It may be concluded than that produced by oxidized lipoprotein fraction without antioxidants.
It may be concluded that oxidation of LDL can be prevented at an earlier stage by Vitamin E supplementation. The supplementation
with Glutathione serves as the best method of preventing the lipoprotein oxidation among the renal diseased patients. 相似文献
19.
A. Ahmed A. K. Pendse P. N. Sharma P. P. Singh 《Indian journal of clinical biochemistry : IJCB》1991,6(2):113-117
Ten normal subjects (NS) and 28 stone formers (SF) underwent 1 and 2 gm. calcium loading test following three days of calcium restricted diet (400 mg/day). On 4th day first 24-hr. urine sample was collected. An additional 1 and 2 gm. of calcium (Calcium gluconate) was given orally on 5th and 6th day respectively and 24-hr. urine samples were collected on both the days. Before loading, all the NS had normal calcium excretion (<200 mg/day). Calcium loading caused hypercalciuria in 10% and 20% cases respectively. Among SF, 17.9% cases were already hypercalciuric and calcium loading increased it to 42.9% and 46.4% patients respectively. The results indicated that exogenous calcium had only limited capacity to increase urinary calcium and that the magnitude of rise was relatively higher in SF. The increased excretion in SF was primarily due to intestinal hyperabsorption of calcium. 相似文献
20.
R. Kumar R. Kapoor B. Mittal A. Kumar R. D. Mittal 《Indian journal of clinical biochemistry : IJCB》2003,18(2):209-215
Metabolic abnormalities were investigated in 44 stone patients with first time (group 1) and 56 with 2 times stone formation
(group 2), and in 25 normal individuals. 24hr urine was analysed spectrophotometrically for oxalate, calcium, magnesium, citrate,
uric acid, phosphate and creatinine. Hypocitraturia and hyperoxaluria were the common abnormalities in the stone formers.
Stone patients had significantly higher urinary oxalate, calcium and uric acid and lower phosphate than normal individuals.
Citrate/calcium and magnesium/calcium ratio were significantly high in normal individuals than stone formers. Patients in
group 2 excreted significantly higher urinary calcium and lower citrate that patients in group 1. Citrate/calcium ratio was
higher in group 1 than group 2. Hypocitraturia, hyperoxaluria, hypercalciuria and increased citrate/calcium and magnesium/calcium
ratio seem to be an essential risk factor for stone formation. Patients with recurrent stone formation could be distinguished
from patients with first time stone formation on the basis of urinary calcium and citrate. 相似文献