1 STATUS OF TRACE ELEMENTS IN MYSORE SUBJECTS Dr. G. NAGARAJ Lab. Asst. in Zoology ZOOLOGY SECTION REGIONAL INSTITUTE OF EDUCATION (NCERT) MYSORE e-mail: [email protected]
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STATUS OF TRACE ELEMENTS IN
MYSORE SUBJECTS
Dr. G. NAGARAJ
Lab. Asst. in Zoology
ZOOLOGY SECTIONREGIONAL INSTITUTE OF EDUCATION (NCERT)
MYSORE e-mail: [email protected]
22
Background
• Toxic elements load create stressed environment.
• Long-term human exposure leads to somatic &
genetic defect.
• Therefore, it is needed to determine status of these
elements.
• Human exposures can be assessed by biomonitoring
(i.e. sampling and analysis of an individual’s tissues
and fluids).
• Used in clinical evaluations.
Objectives of the study
To find out the Status of 9 trace elements (excess and deficient) in subjects from Mysore (rural &urban)
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MATERIALS AND METHODS
1. Subjects: The residents of Mysore city & surrounding villages (M:100 & F:76)
2. Samples: Teeth, blood, urine, scalp hair & fingernail3. Sampling places: Teeth: JSS dental college, Mysore Blood, scalp hair, fingernails and urine: Kamakshi,
Bassappa Memorial and Vickram Hospitals, Mysore.
4. Questionnaire: personal and sample characters were collected
5. Processing of samples:Washing: T, F - DDW, H, N, - DDW & Acetone-wit magnetic stirrerDrying: Hot air oven - 50C - 24hrDigestion: HNO3 & HClO4 (4:1), Kjeldhal apparatus – 80’C - 8 hr Make up to 10 ml with DDW and stored in refrigerator at 4’C
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Element Analysis:
Sample Element Instrument Place
TeethCr, Cu, Fe, Ni, Pb, Zn
AAS 6 VARIO
AAS-GBC 902
CES- Anna Univ, Chennai.
SES-JNU- New Delhi.
Blood, urine, hair,
fingernail, food
Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn
ICP-AES - JY-IYON-2002–2 DEE - SJCE,
MysoreQuality control studies: Certified Reference Material (CRM) i.e. human hair powder supplied by the National Institute of Environmental studies (NIES), Japan, (NIES-CRM) was analysed Anna University, Chennai Jawaharlal Nehru University (JNU), New Delhi.
Statistical analysis: Mean, Standard Deviation, Student ‘t’ test. Mean elements concentration for each sample is given in tables.
SN Place/ Country Subjects
Mean elements concentration of blood (ng/ml)Cd Co Cr Cu Fe Ni Pb Zn
1 Mysore Rural 2.61 3.30 5.44 130.0 3294.8 10.78 19.67 391.8Urban 3.48 4.02 8.77 117.3 4003.9 12.69 35.50 412.8
2 Reference value/ range 0.3-7.0 2.8-45 970
432000 4.5-28.0 8-269 6500
3 Kuwait Pregnant women 2156 2020.1 656.2
4 Germani 1.0 705 Hydrabad- India Controls 17.86 16.916 Poland Children 790
7 Austria Ortho-patient
0.77-37.80
1.59-14.11
8 Sweeden Adolescent 0.31 920 16 61009 Brazil CRF-
patients 6660 7400
10 Poland Women 1030 76011 Czech 0.7 800 41 580012 Italy 0.19 0.7213 Bangaladesh 1370 47014 China 0.80-
25.215 Pakistan 1320
Table 1 Comparison of blood element levels of Mysore subjects with reported reference values
Result
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Table 2 Comparison of tooth element levels of Mysore subjects with reported reference values
SN Place/ Country Subjects
Mean element concentrations of tooth (µg/g)
Cr Cu Fe Ni Pb Zn
1 MysoreRural 15.49 3.51 62.95 19.2
1 42.08 136.25
Urban 20.86 3.70 77.15 27.89 68.39 167.3
0
2 Davangere- India
Children 0.62 6.95 5.40 8.29 0.1 1.75Adolescents 2.67 3.54 6.65 11.2
3 0.1 0.37
3 Bombay- India
Children 3.01Adult 8.31
4 Jordan Non-smokers 24.07
5 Venezuela Children 1.08 2.85 89.276 Malaysia 0.6 123
7 China 3.03-6.40
0.18-1.53
3.24-11
74-157
8 Finland Children 0.54 1439 Japan Children 9.27 8.4110 Brazil Children 206
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Table 3 Comparison of urine element levels of Mysore subjects with reported reference values
SN
Place/ Country
Subjects
Mean elements concentration of urineCd Co Cr Cu Fe Mn Ni Pb Zn
1 Mysore
Rural
0.12 (µg/l)
0.17 (µg/l)
0.17 (µg/l)
0.10 (µg/l)
0.16 (µg/l)
0.07 (µg/l)
0.33 (µg/l)
0.23 (µg/l)
0.49 (µg/l)
10.32 (µg/gcr
)
13.21 (µg/gcr
)
14.57 (µg/gcr
)
8.88 (µg/gcr
)
12.83 (µg/gcr
)
5.04 (µg/gcr
)
21.02 (µg/gc
r
16.36(µg/gcr
22.16(µg/gcr
Urban
0.11 (µg/l)
0.17 (µg/l)
0.17 (µg/l)
0.13 (µg/l)
0.17 (µg/l)
0.07(µg/l)
0.38 (µg/l)
0.23 (µg/l)
0.38 (µg/l)
5.74 (µg/gcr
)
7.08 (µg/gcr
)
7.90 (µg/gcr
)
6.00 (µg/gcr
)
8.08 (µg/gcr
)
3.06(µg/gcr)
14.26 (µg/gc
r
10.28(µg/gcr
13.90(µg/gcr
2 Reference value/ range
0.5-4.7 (µg/l)
1.20-1.35 (µg/l)
0.24-1.8
(µg/l)12-80 (µg/l)
1.2-600
(µg/l)0.5-9.8 (µg/l)
2.2-2.7
(µg/l)6.3-13 (µg/l)
361-599
(µg/l)
3 India790.0(µg/dl)
4 USA General
7.9 (µg/d)
5 Korea Children
1.33 (µg/l)
5.44 (µg/l)
6 Germany 0.8 (µg/l)
3.0 (µg/l)
7 Austria 1.5(µg/gcr)
1.1 (µg/gcr
)
0.1 (µg/gc
r
8 Spain Female4.8
(µg/gcr)
73.0(µg/gcr
9 Germany General
0.4 (µg/l)
1.0 (µg/l)
10 Rome 0.07-0.76
0.20-1.23
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Table 4 Comparison of hair element levels of Mysore subjects with reported reference values
SN Place/ Country Subjects
Mean elements concentration of hair (µg/g)
Co Cr Cu Fe Mn Ni Pb Zn
1 MysoreRural 3.89 0.35 4.63 4.32 1.14 0.46 0.74 96.12
Urban 4.02 0.51 3.88 4.78 1.83 0.74 1.10 108.43
2 Reference value/ range
0.0004- 0.5
0.06-4.10
6.6 -39
13-177
0.2-4.4
0.002-1.2 4.2-52 124-
320
3 UK Mothers 18.4 7.95 122.54 Czech Children 0.22 12 1.6 1245 Austria 0.01 0.84 0.32 1.47
6 Pakistan General 30.69 6.08 206.1
7 Poland Elderly people
11.25
17.32
176.44
8 Poland General 11.51
146.32
9 Pakistan Control 81.68 154.2
10 Germany Children 10.6 2.7 108
11 Poland Children 12.57 4.41 173.8
612 Lublin Children 12.9 6.34 110
Table 5 Comparison of nail element levels of Mysore subjects with reported reference values
SN
Place/ Country Subjects
Mean elements concentration of nail (µg/g)
Cd Co Cr Cu Fe Mn Ni Pb Zn
1 MysoreRural 1.58 6.1
71.51 8.24 23.4
25.07
2.14
1.01
140.32
Urban 1.21 2.76
1.10 6.16 13.2
13.84
2.19
2.96
114.72
2 New Delhi- India
Normal Male 1.5 0.7 47.4 3.8 14.2 83.9
Normal female 1.0 1.1 51.0 4.4 24.
1 222.9
3 Kenya Urban children 0.73 27.
54 Copenhage
n Normal 1.19
5 Germany Children 0.45 7.5 8.5 129
6 USA Normal 0.042
2.39 4.33 42.5 110
7 Pakistan Normal 0.05
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SN
Element
Whole
blood
Urine
Scalp hair
Fingernails
Teeth Inference
1 Pb Lower status
2 Cd BDL N An With in the reference range
3 Ni With in the reference range
4 Co N An Higher status
5 Cr With in the reference range
6 Mn BDL N An With in the reference range
7 Zn With in the reference range
8 Cu Lower status
9 Fe Lower status
Table 6 Evaluation of element status of Mysore subjects in comparison with reported reference values
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FINDINGS
1. Lower Pb and normal Ni & Cd indicates their low pollution status.
2. Lower Cu & Fe may be due to low nutritional intake & interaction of high Co level.
3. Higher Co from occupation, smoking and chewing betel and nut.
4. Cr, Mn and Zn levels within the ranges of reference values.
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