共查询到20条相似文献,搜索用时 140 毫秒
1.
Lu Guo Xiaoyan Hu Tongfu Xu Xin Qi Yang Wan Xiaopeng Liu Yali Jiang Lianying Zhang 《Molecular biology reports》2011,38(3):1869-1874
Zinc is an essential nutrient for all organisms, which is involved in the function of numerous key enzymes in metabolism.
Two gene families have been identified involved in zinc homeostasis. ZnT transporters reduce intracellular zinc while Zip
transporters increase intracellular zinc. Previous studies in our laboratory have shown that Zip-1, ZnT-1, Zip-2 and LIV-1
mRNA are associated with zinc level in established human breast cancer in nude mice model. In this study, six zinc transporters:
ZnT-1, ZnT-2, ZnT-4, Zip-1, Zip-8 and Zip-13 were chosen. We aim to determine the relation between zinc transporters and zinc
level in kidney and lung of Wistar rats. Eighteen Wistar rats were randomly divided into three groups: normal group, zinc-deficiency
group and pair-fed group. After 22 days, the rats were killed and organs samples were taken, then zinc transporters mRNA were
detected by RT-PCR. Compared with the normal group, Zip-13 shows an up-regulation (P < 0.05) in zinc-deficiency group both in kidney and lung, and Zip-8 was significantly lower (P < 0.05) in zinc-deficiency group in kidney. 相似文献
2.
Amy L. Albrecht Seema Somji Mary Ann Sens Donald A. Sens Scott H. Garrett 《Biometals》2008,21(4):405-416
The human prostate gland undergoes a prominent alteration in Zn+2 homeostasis during the development of prostate cancer. The goal of the present study was to determine if the immortalized human prostate cell line (RWPE-1) could serve as a model system to study the role of zinc in prostate cancer. The study examined the expression of mRNA for 19 members of the zinc transporter gene family in normal prostate tissue, the prostate RWPE-1 cell line, and the LNCaP, DU-145 and PC-3 prostate cancer cell lines. The study demonstrated that the expression of the 19 zinc transporters was similar between the RWPE-1 cell line and the in situ prostate gland. Of the 19 zinc transporters, only 5 had levels that were different between the RWPE-1 cells and the tissue samples; all five being increased (ZnT-6, Zip-1, Zip-3A, Zip-10, and Zip-14). The response of the 19 transporters was also determined when the cell lines were exposed to 75 microM Zn+2 for 24 h. It was shown for the RWPE-1 cells that only 5 transporters responded to Zn+2 with mRNA for ZnT-1 and ZnT-2 being increased while mRNA for ZnT-7, Zip-7 and Zip-10 transporters were decreased. It was shown for the LNCaP, DU-145 and PC-3 cells that Zn+2 had no effect on the mRNA levels of all 19 transporters except for an induction of ZnT-1 in PC-3 cells. Overall, the study suggests that the RWPE-1 cells could be a valuable model for the study of the zinc transporter gene family in the prostate. 相似文献
3.
Ferro FE de Sousa Lima VB Soares NR de Sousa Almondes KG Pires LV Cozzolino SM do Nascimento Marreiro D 《Biological trace element research》2011,143(2):787-793
Alterations in antioxidant defense in obese people with metabolic syndrome can contribute to oxidative stress. This study
assessed the relationship between the parameters of metabolic syndrome and the zincemia, activity of superoxide dismutase,
and glutathione peroxidase enzymes in obese women. Seventy-three premenopausal women, aged between 20 and 50 years, were divided
into two groups: case group, composed of obese (n = 37), and control group, composed of no obese (n = 36). Analyses of zinc intake, parameters of metabolic syndrome, plasma, and erythrocyte zinc, and activities of superoxide
dismutase and glutathione peroxidase were carried out. The mean values of body mass index of obese women and control group
were 34.5 ± 3.4 and 21.7 ± 1.9 kg/m2, respectively (p < 0.05). In the study, body mass index, waist circumference, and zinc intake were higher in obese women than control group
(p < 0.05). The plasma zinc and activity of superoxide dismutase did not show significant differences between obese and controls
(p > 0.05). The values of erythrocyte zinc was 36.4 ± 15.0 μg/gHb and 45.4 ± 14.3 μg/gHb and of glutathione peroxidase was 46.4 ± 19.4 U/gHb
and 36.7 ± 13.6 U/gHb in obese women and controls, respectively (p < 0.05). The study shows that there are alterations in biochemical parameters of zinc in obese women, with low zinc concentrations
in erythrocytes. Regression analysis demonstrates that the erythrocyte zinc and activity of superoxide dismutase enzyme is
influenced by components of the metabolic syndrome, and the plasmatic glucose, body mass index, and waist circumference have
a negative correlation with this enzyme. 相似文献
4.
5.
Zinc plays an important role in regulating the expression of brain-derived neurotrophic factor (BDNF) and its receptor in
nervous system, but the correlation among Zn2+, zinc transporter, and BDNF in spinal cord injuries (SCI) is not fully understood. The purpose of this study was to investigate
the expression of Zn2+, zinc transporter 1 (ZnT-1), and BDNF, as well as their correlation in spinal cord-injured rats. One hundred Wistar male
rats were divided into two groups: sham-operated group (as control group) and model group. Spinal cord injury was induced
in model groups by hemisection of T9 on the left side. Compared with the control group, the serum zinc levels in SCI model
group were significantly decreased after surgery, but zinc concentrations in spinal cord were increased gradually. The mRNA
levels of ZnT-1 and BDNF were significantly increased in SCI model group, and there is a positive correlation between them
(Spearman rho = 0.381, P = 0.0204). The correlation found between BDNF and ZnT-1 allows us to speculate that these two factors may be physiologically
co-regulated, which may provide an idea for the treatment of SCI. 相似文献
6.
Zinc is essential for cell growth. Previous studies have shown that zinc concentration in breast cancer tissues is higher
than that in normal breast tissues. Zinc cannot passively diffuse across cell membranes and specific zinc transporter proteins
are required. Two gene families have been identified involved in zinc homeostasis. ZnT transporters reduce intracellular zinc
while ZIP transporters increase intracellular zinc. In this study, three human zinc transporter members: ZnT-1, ZIP2 and LIV-1
were chosen. We aimed to determine the effect of flaxseed lignan on the growth of ER-negative breast cancer cells in a nude
mice model and observe the effect of flaxseed lignan on the regulation of the three zinc transporter in mRNA level. Nude mice
were xenografted with human breast cancer cell line MDA-MB-231 and 6 weeks later were fed either the basal diet (BD) or BD
supplemented with 10% FS and SDG for 5 weeks. The SDG levels were equivalent to the amounts in the 10% FS. RT-PCR was performed.
Compared with the BD group, the tumor growth rate was significantly lower (P < 0. 05) in the FS and SDG group. ZnT-1 mRNA level in mammary tumor was increased in SDG group and decreased in FS group,
but no significant difference was found. Extremely low amplification of ZIP2 from mRNA was detected, with no difference between
the treatment groups. LIV-1 mRNA expression of SDG group increases compared with BD group. In FS group, it significantly increases
nearly 9 times than that in BD group (P < 0. 005). 相似文献
7.
Tascilar ME Ozgen IT Abaci A Serdar M Aykut O 《Biological trace element research》2011,143(1):188-195
The quality of the diet of obese children is poor. Eating habits may alter micronutrient status in obese patients. In this
study, we determined the serum levels of selenium, zinc, vanadium, molybdenum, iron, copper, beryllium, boron, chromium, manganese,
cobalt, silver, barium, aluminum, nickel, cadmium, mercury, and lead in obese Turkish children. Thirty-four obese and 33 healthy
control subjects were enrolled in the study. Serum vanadium and cobalt levels of obese children were significantly lower than
those of the control group (0.244 ± 0.0179 vs. 0.261 ± 0.012 μg/l, p < 0.001, and 0.14 ± 0.13 vs. 0.24 ± 0.15 μg/l, p = 0.011, respectively). There was no significant difference between groups regarding the other serum trace element levels.
In conclusion, there may be alterations in the serum levels of trace elements in obese children and these alterations may
have a role in the pathogenesis of obesity. 相似文献
8.
Ersoy IH Koroglu BK Varol S Ersoy S Varol E Aylak F Tamer MN 《Biological trace element research》2011,143(2):619-624
Although there are many studies on effect of fluoride on trace elements in experimental animals, few studies exist on serum
trace elements levels in patients with endemic fluorosis. We aimed to determine the serum levels of trace elements including
serum copper (Cu), zinc (Zn), and serum levels of minerals including calcium (Ca), phosphorus (P), magnesium (Mg), sodium
(Na), potassium (K) in patients with endemic fluorosis. The study group consisted of 30 patients with endemic fluorosis (17
females, 13 males, mean age 33.53 ± 9.85 years). An age, gender, and body mass index matched 30 healthy volunteers comprised
control group (21 females, ten males with a mean age 33.93 ± 7.39 years). Urine fluoride levels of chronic fluorosis patients
were significantly higher than that of control subjects as expected (1.92 ± 0.10 mg/l vs. 0.41 ± 0.09 mg/l, respectively;
P < 0.001). Serum Cu levels (89.14 ± 16.77 μg/dL vs. 102.69 ± 25.04 μg/dL, respectively, P = 0.017), serum Zn levels (77.98 ± 20.58 μg/dL vs. 94.57 ± 35.87μg/dL, respectively, P = 0.032), and serum Mg levels (1.92 ± 0.18 mg/dL vs. 2.07 ± 0.31 mg/dL, respectively, p = 0.022) was significantly lower in chronic fluorosis patients than in controls. There were no statistically significant
differences between the fluorosis group and control group with respect to serum levels of Na, K, Ca, and P. We concluded that
chronic fluorosis is associated with reduced serum levels of Cu, Zn, and Mg. 相似文献
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11.
Fatemi Naieni F Ebrahimi B Vakilian HR Shahmoradi Z 《Biological trace element research》2012,146(1):30-34
Premature graying of hair with unclear etiology, which is known as premature canities, is a common cause of referrals to the
dermatologists. We assessed the relationship between serum iron, copper, and zinc concentrations with premature canities.
This study was conducted on patients under 20 years old suffering from premature canities, having a minimum of ten gray hair
fibers, and referring to university hospitals of Isfahan (Iran). The results were compared with age–sex-matched controls.
Demographic data and disease characteristics were recorded for two groups. We studied serum iron, copper, and zinc concentrations
of 66 patients and 66 controls using atomic absorption and Ferrozine methods. The mean age of studied cases was 17.8 ± 2.0 years,
and the mean age of the onset of canities was 15.5 ± 3.2 years with no significant difference between males and females (P > 0.05). Serum copper concentration was significantly lower in patients compared with controls (90.7 ± 37.4 vs. 105.3 ± 50.2 μg/dL,
P = 0.048), but serum iron concentration was significantly lower in controls compared to patients (88.8 ± 39.5 vs. 108.3 ± 48.4 μg/dL,
P = 0.008). Also, there was no significant difference between patients and controls in serum zinc concentration (114.8 ± 67.8
vs. 108.2 ± 49.9 μg/dL, P = 0.285). According to these results, among copper, zinc, and iron, a low serum copper concentration may play a role in premature
graying of hairs in our society. Further studies are needed to find the underlying mechanism of this relationship. 相似文献
12.
Böyük A Banlı O Gümüş M Evliyaoğlu O Demirelli S 《Biological trace element research》2011,143(3):1282-1288
Laparoscopic adjustable gastric banding (LAGB) causes significant weight loss in morbidly obese adults. However, its consequences
on nutritional status still remain unclear. There are a few studies determining the nutritional status after LAGB and none
have focused on the serum levels of zinc (Zn), copper (Cu), and ceruloplasmin (CP). We aimed to investigate the effects of
LAGB surgery on plasma Zn, Cu, and CP levels. Thirty patients with LAGB with morbid obesity were included. Blood samples were
collected preooperatively and in the postoperative third month to determine plasma Zn, Cu, and CP levels. The mean preoperative
and postoperative body mass indexes (BMI) were 44.9 ± 7.4 kg/m2 and 44.1 ± 6.5 kg/m2, respectively. The mean weight loss was 12.9 ± 3.3 kg at the postoperative third month. The postoperative Zn (500 ± 130 ng/ml),
Cu (280 ± 80 ng/ml), and CP (23.9 ± 8.8 mg/dl) values were statistically significantly lower than the preooperative Zn (740 ± 230 ng/ml),
Cu (370 ± 80 ng/ml) and CP (33.3 ± 15.7 mg/dl) levels (p < 0.05). Decreases in the plasma levels of Zn, Cu, and CP were seen postoperatively following LAGB surgery. The nutritional
status of LAGB-applied patients should be monitored and mineral supplementation may be considered. 相似文献
13.
Casimiro-Lopes G de Oliveira-Junior AV Portella ES Lisboa PC Donangelo CM de Moura EG Koury JC 《Biological trace element research》2009,127(2):109-115
The purpose of this study was to compare plasma leptin, plasma zinc, and plasma copper levels and their relationship in trained
female and male judo athletes (n = 10 women; n = 8 men). Blood samples were obtained 24 h after training to measure plasma zinc, copper, and leptin levels. Subjects presented
similar values to age (22 ± 2 years old), body mass index (24 ± 1 kg/m2), plasma zinc (17.2 ± 2 μmol/L), copper (12.5 ± 2 μmol/L), and leptin (5.6 ± 1.3 μg/L). However, height, total body mass,
lean mass, fat mass, and sum of ten-skinfold thickness were higher in male than female. Plasma leptin was associated with
sum of ten skinfolds in male (r = 0.91; p < 0.001) and female athletes (r = 0.84; p < 0.003). Plasma zinc was associated with leptin in males (r = 0.82; p < 0.05) while copper was associated with plasma leptin in females (r = 0.66; p < 0.05). Our results suggest that young judo athletes lost sex-related differences in leptin levels. Plasma zinc, plasma
copper, and energy homeostasis may be involved in regulation of plasma leptin. 相似文献
14.
Seema Jain Priyamvada Sharma Shobha Kulshreshtha Govind Mohan Saroj Singh 《Biological trace element research》2010,133(2):162-170
Pre-eclampsia is the most common medical complication of pregnancy associated with increased maternal and infant mortality
and morbidity. Its exact etiology is not known, although several evidences indicate that various elements might play an important
role in pre-eclampsia. This study was carried out to analyze and to compare the concentration of calcium, magnesium, and zinc
in the serum of women with pre-eclampsia and in normal pregnant women. Fifty clinically diagnosed patients with pre-eclampsia
(25 with mild and 25 with severe pre-eclampsia) and 50 normal pregnant controls were enrolled in this study. The serum calcium,
magnesium, and zinc levels were estimated with an atomic absorption spectrophotometer. The mean serum levels of calcium, magnesium,
and zinc in normal pregnant group were 2.45 ± 0.18 mmol/L, 0.79 ± 0.13 mmol/L, and 15.64 ± 2.4 μmol/L, respectively, while
in mild pre-eclamptic group, these were 2.12 ± 0.15 mmol/L, 0.67 ± 0.14 mmol/L, and 12.72 ± 1.7 μmol/L, respectively. Serum
levels in severe pre-eclamptic group were 1.94 ± 0.09 mmol/L, 0.62 ± 0.11 mmol/L, and 12.04 ± 1.4 μmol/L, respectively. These
results indicate that reduction in serum levels of calcium, magnesium, and zinc during pregnancy might be possible contributors
in etiology of pre-eclampsia, and supplementation of these elements to diet may be of value to prevent pre-eclampsia. 相似文献
15.
Tohidi M Ghasemi A Hadaegh F Arbabi S Hosseini Isfahani F 《Biological trace element research》2011,143(2):835-843
This study aims at determining the association between markers of hepatic injury and serum, urinary, and intra-erythrocyte
magnesium concentrations and dietary magnesium intake in obese children and adolescents. In a case–control study, 42 obese
children and adolescents (8–18 years) and 42 sex- and puberty-matched controls were studied. Serum, urinary, and intra-erythrocyte
magnesium levels, indices of insulin sensitivity, and liver enzymes were measured. Dietary magnesium intake was assessed using
a food frequency questionnaire. Obese children and adolescents exhibited insulin resistance as determined by a higher fasting
insulin and the HOMA-IR (p < 0.001) and lower QUICKI indices (p = 0.001); in addition these subjects had significantly higher intra-erythrocyte magnesium (IEM) concentrations, than non-obese
ones (3.99 ± 1.05 vs. 3.35 ± 1.26 mg/dL of packed cell; p = 0.015). Among liver enzymes, only gamma-glutamyl transferase (GGT) was significantly higher in obese than in non-obese
subjects (22.7 ± 9.4 vs. 17.1 ± 7.9 U/l; p = 0.002). A positive association was found between GGT and IEM in both groups; however in multivariate analysis, in obese
subjects, only GGT (p = 0.026) and, in non-obese subjects, only age (p = 0.006) remained as significant predictors of IEM. In conclusion, increased IEM concentration was seen in insulin-resistant
obese children and adolescents; furthermore, serum GGT was associated with IEM, independently of body mass index and HOMA-IR. 相似文献
16.
Soria F Ellenrieder G Oliveira GB Cabrera M Carvalho LB 《Applied microbiology and biotechnology》2012,93(3):1127-1134
α-l-Rhamnosidase from Aspergillus terreus was covalently immobilized on the following ferromagnetic supports: polyethylene terephthalate (Dacron-hydrazide), polysiloxane/polyvinyl
alcohol (POS/PVA), and chitosan. The powdered supports were magnetized by thermal coprecipitation method using ferric and
ferrous chlorides, and the immobilization was carried out via glutaraldehyde. The activity of the Dacron-hydrazide (0.53 nkat/μg
of protein) and POS/PVA (0.59 nkat/μg of protein) immobilized enzyme was significantly higher than that found for the chitosan
derivative (0.06 nkat/μg of protein). The activity–pH and activity–temperature profiles for all immobilized enzymes did not
show difference compared to the free enzyme, except the chitosan derivative that presented higher maximum temperature at 65 °C.
The Dacron-hydrazide derivative thermal stability showed a similar behavior of the free enzyme in the temperature range of
40–70 °C. The POS/PVA and chitosan derivatives were stable up to 60 °C, but were completely inactivated at 70 °C. The activity
of the preparations did not appreciably decrease after ten successive reuses. Apparent K
m of α-l-rhamnosidase immobilized on magnetized Dacron-hydrazide (1.05 ± 0.22 mM), POS/PVA (0.57 ± 0.09 mM), and chitosan (1.78 ± 0.24 mM)
were higher than that estimated for the soluble enzyme (0.30 ± 0.03 mM). The Dacron-hydrazide enzyme derivative showed better
performance than the free enzyme to hydrolyze 0.3% narigin (91% and 73% after 1 h, respectively) and synthesize rhamnosides
(0.116 and 0.014 mg narirutin after 1 h, respectively). 相似文献
17.
Vanilla planifolia is a tropical orchid mainly known for the aromatic flavor of its cured pods. Callus cultures were initiated from leaf and
nodal explants of V. planifolia. Leaf explants showed better callus initiation than the nodal explants with callus biomass production maximal when cultured
on Murashige and Skoog (MS) basal medium containing 4.52 mM 2,4-dichlorophenoxy acetic acid and 2.22 mM benzyladenine (BAP).
Callus transferred to MS basal medium supplemented with 13.32 μM BAP, and 13.43 μM naphthaleneacetic acid (NAA) showed superior
growth response and produced 14.0 ± 1.0 shoots with an average length of 3.6 ± 0.1 cm after 40 d. Subsequent transfer of the
proliferated shootlets to MS basal medium supplemented with 8.88 μM BAP and 8.08 μM NAA produced 12.3 ± 0.14 plantlets with
an average height of 3.6 cm ± 0.10 cm. All plantlets produced profuse rooting within 35–40 d after transfer to half-strength
MS basal medium supplemented with NAA in combination with indole-3-acetic acid. Rooted plantlets were transferred for hardening,
with 80% of the plantlets becoming successfully established in the field. Potentially, more than 100,000 plantlets could be
produced within eight subcultures from callus obtained from leaf explant through the methods described here. 相似文献
18.
Carlos Velasco-Reynold Miguel Navarro-Alarcon Herminia Lopez-Ga de la Serrana Vidal Perez-Valero Ahmad Agil Maria C. Lopez-Martinez 《Biological trace element research》2010,133(3):313-324
Total and dialysable magnesium and calcium levels and corresponding dialysabilities were measured in duplicate meals (n = 108) during 36 consecutive days. The interaction exerted by other nutrients and energy on them was also performed. Total
mean magnesium and calcium fractions of 113.9 ± 98.3 and 337.2 ± 278.9 mg/meal respectively, were found. The Mg and Ca levels
supplied by meals are positively (p < 0.05) correlated with macronutrient contents (carbohydrates and proteins). The mean dialysable Mg and Ca fractions were
56.9 ± 36.3 and 127.4 ± 112.3 mg/meal (50.4 ± 13.2 and 37.8 ± 10.7% as dialysabilities, respectively). Total Mg and Ca levels
are significantly correlated with corresponding element dialysabilities (p < 0.05). For both minerals, significant correlations between their total and dialysable fractions and between their dialysable
level and dialysabilities were noted (p < 0.01). The mean Mg and Ca daily dietary intakes (DDI) were 341.7 ± 68.0 and 1,011.6 ± 424.4 mg/day, respectively. For Ca
and Mg the existence of similarities in their behaviour in meals and absorptive processes has been found. Duplicate meals
with raw vegetables are good sources of bioaccessible Mg. High Ca dialysability has been found in the analysed meals. The
fish and products constitute a good source of bioaccessible Ca. Mg, Ca, zinc, and chromium levels enhanced significantly the
Mg dialysability. The Ca dialysability rose significantly with dialysable Ca and chromium fractions (p < 0.05). 相似文献
19.
Monica Daniela Doşa Laurentiu-Tony Hangan Eduard Crauciuc Cristina Galeş Mihai Nechifor 《Biological trace element research》2011,142(1):36-46
Research was performed on a group of 30 patients with non-insulin-dependent diabetes mellitus (NIDDM), who never received
antidiabetic medication before, and on a group of 17 healthy adults. The patients were administered treatment with metformin,
1,000 mg/day. Plasmatic and urinary concentration of magnesium have been measured, copper and zinc along with the concentrations
of glucose, HDL, LDL, cholesterol, tryglicerides, HbA1c, and total erythrocyte magnesium, in advance and after 3 months of
treatment. Data showed significant differences in the NIDDM group vs the control group: for plasma magnesium—1.95 ± 0.19 vs
2.20 ± 0.18 mg/dl, p < 0.001; urine magnesium—237.28 ± 34.51 vs 126.25 ± 38.22 mg/24 h, p < 0.001; erythrocyte magnesium—5.09 ± 0.63 vs 6.38 ± 0.75 mg/dl, p < 0.001; plasma zinc—67.56 ± 6.21 vs 98.41 ± 20.47 μg/dl, p < 0.001; urine zinc—1,347.54 ± 158.24 vs 851.65 ± 209.75 μg/24 h, p < 0.001; plasma copper—111.91 ± 20.98 vs 96.33 ± 8.56 μg/dl, p < 0.001; and urine copper—51.70 ± 23.79 vs 36.00 ± 11.70 μg/24 h, p < 0.05. Treatment with metformin for 3 months modified significant erythrocyte magnesium—5.75 ± 0.61 vs 5.09 ± 0.63 mg/dl,
p < 0.001 and urine magnesium—198.27 ± 27.07 vs 237.28 ± 34.51 mg/24 h, p < 0.001, whereas it did not modify significant the plasmatic and urinary concentration of the other cations. The erythrocyte
magnesium concentration was inversely correlated with HbA1c (r = −0.438, p = 0.015). The plasma level of copper was positively correlated with HbA1c (r = 0.517, p < 0.003), tryglicerides (r = 0.534, p < 0.003), and cholesterol (r = 0.440, p < 0.05), and the plasma level of zinc was inversely correlated with glycemia (r = −0.399, p = 0.029). Our data show a significant action of metformin therapy, by increasing the total intraerythrocyte magnesium concentration
and decreasing the urinary magnesium elimination, positively correlated with the decrease of glycemia and HbA1c in NIDDM patients. 相似文献
20.
Data on zinc concentration in the human body may be used to interpret the results obtained in cases of chronic and acute poisonings
with zinc compounds, i.e., in clinical and forensic toxicology. In this paper, the concentrations of zinc in human tissues
and body fluids obtained from autopsy cases concerning non-poisoned people (n = 203), aged from 14 to 80 years, between 1995 and 2008, are presented. The following values were found by the flame atomic
absorption method (mean ± SD, median, range, in microgram per gram or microgram per milliliter): brain 10.3 ± 1.36, 10.2,
7.99–13.8 (n = 48); stomach 14.2 ± 3.63, 13.6, 8.00–22.5 (n = 71); intestines 15.7 ± 5.22, 15.8, 8.36–28.1 (n = 35); liver 39.6 ± 16.1, 36.6, 16.0–78.8 (n = 109); kidney 33.8 ± 10.1, 31.8, 16.4–60.9 (n = 93); lung 12.0 ± 3.88, 11.0, 6.13–18.7 (n = 26); spleen 14.7 ± 2.53, 14.6, 11.4–18.3 (n = 5); heart 26.5 ± 3.63, 26.7, 22.5–31.8 (n = 5); blood 6.81 ± 1.21, 7.00, 4.02–8.68 (n = 50); urine 0.69 ± 1.70, 0.60, 0.39–1.00 (n = 5), and bile 4.92 ± 1.64, 3.75, 3.20–7.09 (n = 9). The accuracy of the method was checked through the use of SRM Bovine Liver 1577b (certified: 127 ± 16 μg Zn/g, found:
117 ± 0.7 μg Zn/g (n = 6)). 相似文献