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1.
Mahakkanukrauh P Tohno S Tohno Y Chomsung R Azuma C Moriwake Y Minami T 《Biological trace element research》2004,100(3):205-214
To examine whether there were differences between races in regard to the relationships among element contents in the arteries,
the authors investigated the relationships among the average contents of calcium, phosphorus, sulfur, and magnesium in the
18 kinds of the Thai artery. After ordinary dissection by medical students at Chiang Mai University was finished, the thoracic
and abdominal aortas, ramifying site of the abdominal aorta into the common iliac arteries, coronary, common carotid, internal
thoracic, subclavian, axillary, brachial, radial, superior and inferior mesenteric, renal, common iliac, internal iliac, and
external iliac arteries were resected from the subjects who consisted of 12 men and 3 women, ranging in age from 39 to 84
yr. The femoral and posterior tibial arteries were resected from the subjects, consisting of 15 men and 5 women, ranging in
age from 25 to 88 yr. The element content of the arteries was analyzed by inductively coupled plasma-atomic emission spectrometry.
It was found that there were extremely significant direct correlations among the average contents of calcium, phosphorus,
and magnesium in the 18 kinds of the Thai artery, but no significant correlations were found between the average contents
of sulfur and elements, such as calcium, phosphorus, and magnesium. These results were in agreement with those of the Japanese
arteries. Therefore, it was suggested that there was no significant difference between the arteries of the Thai and the Japanese
in the relationships among calcium, phosphorus, sulfur, and magnesium. 相似文献
2.
Ohnishi Y Tohno S Mahakkanukrauh P Tohno Y Vaidhayakarn P Azuma C Satoh H Moriwake Y Chomsung R Minami T 《Biological trace element research》2003,96(1-3):71-92
To elucidate whether the extent of element accumulation in the arteries and cardiac valves with aging was different between
different races, the authors investigated the accumulation of elements in the arteries and cardiac valves of the Thai with
aging and the relationships among elements in the cardiac valves. After ordinary dissection at Chiang Mai University was finished,
16 arteries and 4 cardiac valves were resected and element contents were determined by inductively coupled plasma-atomic emission
spectrometry.
In the 16 arteries, the average content of calcium was the highest in the site of the abdominal aorta ramifying into the common
iliac arteries, and it decreased in the order internal iliac, coronary, abdominal aorta, common iliac, external iliac, superior
mesenteric, inferior mesenteric, thoracic aorta, brachial, radial, common carotid, subclavian, ulnar, axillary, renal, and
internal thoracic arteries. The average contents of phosphorus and magnesium in respective arteries were parallel with the
average contents of calcium, except for the coronary artery. In comparison with the arteries of the Japanese, the trend of
calcium accumulation in the arteries of the Thai was almost similar to that in the arteries of the Japanese, except for the
coronary artery and thoracic aorta. The calcium accumulation in the coronary artery was much higher in the Thai than in the
Japanese, whereas that in the thoracic aorta was lower in the Thai than in the Japanese.
Regarding elements in the cardiac valves, the calcium content increased remarkably in the seventies in the aortic valve and
in the nineties in the pulmonary valve, but it hardly increased in both the mitral and tricuspid valves with aging. The average
content of calcium was the highest in the aortic valve, and it decreased in the order pulmonary, tricuspid, and mitral valves.
Regarding the relationship among elements in the aortic valves, it was found that there were extremely significant direct
correlations among the contents of calcium, phosphorus, and magnesium, whereas there were significant direct correlations
between zinc and either calcium or phosphorus contents. Although significant correlations were found between sulfur and the
other element contents in the aortic valves of the Japanese, no significant correlations were found between them in the aortic
valves of the Thai. In the mitral valves, extremely or very significant direct correlations were found among the contents
of calcium, phosphorus, magnesium, and sulfur, with some exceptions that there were no significant correlations between phosphorus
and either magnesium or sulfur contents.
In addition, no significant correlation was found in the calcium content between the aortic valve and coronary artery in the
same individuals. 相似文献
3.
Tohno Y Tohno S Mahakkanukrauh P Azuma C Vaidhayakarn P Moriwake Y Ohnishi Y Minami T 《Biological trace element research》2003,91(3):217-230
To elucidate quantitative changes of Ca, P, and Mg in the arteries with aging, the authors investigated changes of the mass
ratios of Mg to Ca and P in the arteries of Japanese and Thai by inductively coupled plasma-atomic emission spectrometry.
The arteries of Japanese that were used were the thoracic and abdominal aortas, coronary, common iliac, internal iliac, external
iliac, and femoral arteries, in which very high accumulations of Ca and P occurred in old age. The arteries of Thai that were
used were the abdominal aorta, ramifying site of the abdominal aorta, coronary, common iliac, internal iliac, and external
iliac arteries.
It was found that there were extremely significant correlations both between Ca and Mg contents and between P and Mg contents
in all of the arteries of the Japanese and the Thai. With regard to the mass ratio, the mass ratios of Mg to Ca ranged from
1.5% to 2.1% in the six arteries of the Japanese, except for the thoracic aorta at 3.1%, at an advanced stage of atherosclerosis,
being similar to each other. In the arteries of the Thai, the mass ratios of Mg to Ca ranged from 1.9% to 3.0%, except for
the coronary artery at 0.5%, at an advanced stage of atherosclerosis.
The mass ratios of Mg to P ranged from 2.5% to 2.7% in the six arteries of the Japanese, except for the coronary artery at
1.8%, at an advanced stage of atherosclerosis. With regard to the arteries of the Thai, the mass ratios of Mg to P ranged
from 1.9% to 3.3%, except for the coronary artery at 0.7%, at an advanced stage of atherosclerosis. These results revealed
that both the mass ratios of Mg to Ca and Mg to P were almost similar among the arteries of Japanese and Thai, except for
the coronary arteries. Therefore, these results suggested that the inorganic deposits in the coronary arteries of Japanese
and Thai were similar to those in the intimal tunica of the thoracic aorta, whereas in the other arteries, they were similar
to those in the middle tunica of the thoracic aorta. 相似文献
4.
To examine whether an accumulation of elements in the arteries with aging differs between human and animal, the authors investigated
the relationships among element contents in the arteries of the Japanese monkeys. The Japanese monkeys consisted of five males
and four females, ranging in age from 2 to 29 yr. The aorta, common and external iliac, femoral, common carotid, subclavian,
and axillary arteries were resected from the monkeys and element contents were determined by inductively coupled plasma-atomic
emission spectrometry. It was found that there were very high correlations between calcium and phosphorus contents, between
calcium and magnesium contents, and between phosphorus and magnesium contents in all of the monkey arteries. In addition,
significant correlations were found among the other element contents in some, but not all of the arteries. These results were
consistent with the foregoing findings of the human arteries. It is likely that magnesium forms compounds with phosphorus
or calcium in the monkey arteries. 相似文献
5.
Yoshiyuki Tohno Setsuko Tohno Yumi Moriwake Cho Azuma Yoshiaki Ohnishi Takeshi Minami 《Biological trace element research》2001,82(1-3):21-28
To elucidate compositional changes of the arteries with aging, the authors investigated the relationships among average contents
of calcium, phosphorus, sulfur, and magnesium in the arteries by inductively coupled plasma-atomic emission spectrometry.
The arteries used were the thoracic and abdominal aortas, coronary, common carotid, anterior, middle and posterior cerebral,
vertebral, basilar, internal thoracic, axillary, radial, truncus celiacus, common, internal and external iliac, femoral, popliteal,
and umbilical arteries. It was found that high correlations were found between the average contents of calcium and phosphorus,
between the average contents of calcium and magnesium, and between the average contents of phosphorus and magnesium in the
arteries, but not between the average contents of sulfur and the other elements. These correlations revealed that as the content
of calcium and phosphorus increased in the arteries, the magnesium content increased simultaneously in the arteries, but the
sulfur content did not. It is likely that magnesium forms compounds with phosphorus in the arteries. 相似文献
6.
Setsuko Tohno Yoshiyuki Tohno Motoharu Hayashi Yumi Moriwake Takeshi Minami Fumio Nishiwaki Tsutomu Araki 《Biological trace element research》2001,82(1-3):77-86
To examine whether the calcium accumulation in the arteries is related to the way of walk or not, the calcium contents were
determined in various arteries of Japanese monkeys of quadrupedal walk by inductively coupled plasma-atomic emission spectrometry.
Japanese monkeys consisted of five males and four females, ranging in age from 2 to 29 yr.
Age-related changes of the calcium content were examined in various monkey arteries. Significant relationships between age
and calcium content were found in the arteries, such as the axillary, brachial, radial, subclavian, common carotid, common
iliac, and femoral arteries, but not statistically in the thoracic and abdominal aortas, ulnar, external iliac, internal iliac,
popliteal, and tibial arteries.
The average contents of calcium were compared between the two groups of the monkeys below 14 yr and over 24 yr of age. Below
14 yr, the calcium content was a little higher in the arteries, such as the common, external and internal iliac, and femoral
arteries than that of the other ones. Over 24 yr, the calcium content increased remarkably in the arteries, such as the thoracic
aorta, common, internal and external iliac, common carotid, and subclavian arteries. The calcium contents of the thoracic
aorta, common, internal and external iliac, common carotid, and subclavian arteries increased by more than two times over
24 yr compared with those below 14 yr.
In a comparison between the calcium contents of the arteries in the anatomically corresponding regions of the upper and lower
limbs, no statistically significant differences were found in the subjects over 24 yr as well as the subjects 2–29 yr of age.
The calcium accumulation in the arteries of monkeys with aging was different from those in the arteries of humans, because
in the case of human, a very high accumulation of calcium occurred in the arteries of the lower limb with aging in comparison
with those in the upper limbs.
Therefore, it is likely that different ways of walk or different species are partly affected in the calcium accumulation in
the arteries with aging. 相似文献
7.
Tohno S Mahakkanukrauh P Tohno Y Vaidhayakarn P Minami T Somsarp V Moriwake Y Chomsung R Azuma C 《Biological trace element research》2002,87(1-3):69-82
To examine whether there were differences between races in regard to age-related changes of mineral contents and the relationships
among element contents in the arteries, the authors investigated the coronary arteries of Thai and Japanese. The Thai subjects
consisted of 13 men and 3 women, ranging in age from 39 to 84 yr, whereas the Japanese subjects consisted of 17 men and 9
women, ranging in age from 55 to 92 yr. After the ordinary dissections at Chiang Mai University and Nara Medical University
were finished, the coronary arteries were resected and the element contents were determined by inductively coupled plasma-atomic
emission spectrometry. In the Thai, an accumulation of calcium and phosphorus began to occur in the forties and increased
markedly in the fifties, whereas in the Japanese, an accumulation of calcium and phosphorus began to occur in the seventies
and increased markedly in the nineties. The result revealed that an accumulation of calcium and phosphorus occurred earlier
in the Thai than in the Japanese. Regarding the relationships among element contents, extremely significant correlations were
found between calcium and phosphorus contents, between calcium and magnesium contents, and between phosphorus and magnesium
contents in both the coronary arteries of the Thai and the Japanese. As far as the coronary arteries with a very high accumulation
of calcium and phosphorus, the mass ratios of magnesium to calcium and phosphorus were lower in the coronary arteries of the
Thai in comparison with the Japanese. 相似文献
8.
Yoshiyuki Tohno Setsuko Tohno Yumi Moriwake Cho Azuma Yoshiaki Ohnishi Takeshi Minami 《Biological trace element research》2001,82(1-3):9-19
To elucidate the accumulation of elements in the arteries with aging, the authors investigated age-related changes of elements
in human arteries, such as the thoracic aorta, femoral, basilar, coronary, radial, and common iliac arteries by inductively
coupled plasma-atomic emission spectrometry. The subjects consisted of 17 men and 9 women, ranging in age from 55 to 92 yr
in the cases of the five arteries, except for the common iliac arteries, in which the subjects consisted of 16 men and 8 women,
ranging in age from 65 to 93 yr.
It was found that there were significantly direct correlations between calcium and phosphorus contents and between calcium
and magnesium contents in all of the six arteries: thoracic aorta, femoral, basilar, coronary, radial, and common iliac arteries.
Significantly direct correlations were also found between phosphorus and magnesium contents in the five arteries, except for
the basilar artery. In contrast, significantly inverse correlations were found between calcium and sulfur contents and between
phosphorus and sulfur contents in the four arteries, except for the coronary and radial arteries. These revealed that the
accumulation of calcium and phosphorus in the arteries was accompanied by an increase of magnesium in the arteries and by
a decrease of sulfur in the arteries. 相似文献
9.
Ongkana N Tohno S Payo IM Azuma C Moriwake Y Minami T Tohno Y 《Biological trace element research》2007,117(1-3):23-38
To elucidate whether the accumulation of elements occurred simultaneously in the various arteries with aging, the authors
investigated age-related changes of elements in the eight arteries, such as the thoracic and abdominal aortas and the coronary,
common carotid, pulmonary, splenic, common iliac, and uterine arteries, and the relationships in the element contents among
their arteries. After ordinary dissection by medical students was finished, the thoracic and abdominal aortas and the coronary,
common carotid, pulmonary, splenic, common iliac, and uterine arteries were resected from the subjects, who ranged in age
from 58 to 94 yr. The element contents were analyzed by inductively coupled plasma-atomic emission spectrometry. It was found
that the accumulation of Ca was the highest in the common iliac artery and decreased in the order of the uterine artery, abdominal
aorta, coronary artery, thoracic aorta, splenic artery, common carotid artery, and pulmonary artery. Regarding the relationships
in the element contents among the eight arteries, it was found that there were significant direct correlations in the contents
of Ca, P, Mg, Zn, Fe, and Na between the coronary and splenic arteries, and there were significant correlations in the contents
of Ca, P, and Mg between the abdominal aorta and pulmonary artery. 相似文献
10.
Mahakkanukrauh P Tohno S Tohno Y Azuma C Ongkana N Moriwake Y Minami T 《Biological trace element research》2005,106(3):219-229
To examine whether there were differences between reces in regard to age-related changes of elements and the relationships
among elements in the arteries, the authors investigated both the renal arteries of Thai and Japanese. The Thai subjects consisted
of 27 men and 11 women, ranging in age from 27 to 88 yr, whereas the Japanese subjects consisted of 19 men and 26 women, ranging
in age from 61 to 99 yr. After the ordinary dissections at Chiang Mai University and Nara Medical University were completed,
the bilateral renal arteries were resected and the element contents were determined by inductively coupled plasma-atomic emission
spectrometry. In the Thai, a slight accumulation of calcium and phosphorus occurred in the fifties, but thereafter headly
increased. In contrast, in the Japanese, an accumulation of calcium and phosphorus began to occur in the seventies and increased
markedly in the eighties. The result reveraled that a higher accumulation of calcium and phosphorus occurred in the renal
arteries of the Japanese in old age compared with those of the Thai. Regarding the relationships among elements, extremely
or very significant direct correlations were found among the contents of calcium, phosphorus, magnesium, and sodium in both
the renal arteries of the Thai and Japanese, except for magnesium and sodium contents in the renal arteries of the Thai. 相似文献
11.
Tohno S Tohno Y Moriwake Y Azuma C Ohnishi Y Minami T 《Biological trace element research》2001,84(1-3):57-66
To elucidate the mechanism of element accumulations in the arteries with aging, the authors investigated the mass ratios among
calcium, phosphorus, and magnesium in the common iliac arteries by inductively coupled plasma-atomic emission spectrometry.
The subjects consisted of 16 men and 8 women, ranging in age from 65 to 93 yr.
It was found that there were extremely significant correlations between calcium and phosphorus contents, between calcium and
magnesium contents, and between phosphorus and magnesium contents in the common iliac arteries. In regard to the mass ratio,
although the mass ratio of calcium to phosphorus was almost constant, the mass ratios of magnesium to calcium and phosphorus
were different at early and advanced stages of the accumulation of calcium and phosphorus. It was found that both the mass
ratios of magnesium to calcium and phosphorus were higher at an early stage of the accumulation of calcium and phosphorus
in the arteries than at an advanced stage of the accumulation. 相似文献
12.
Tohno S Tohno Y Hayashi M Minami T Moriwake Y Azuma C Ohnishi Y 《Biological trace element research》2003,95(2):173-184
To examine whether the calcium accumulation in aged arteries is related to the way of walking, the mineral contents were determined
in the arteries of Japanese monkeys of quadrupedal walk by inductively coupled plasma-atomic emission spectrometry. Sixteen
Japanese monkeys consisting of 7 males and 9 females ranging in age from 2 to 33 yr were studied.
The accumulation of calcium, phosphorus, and magnesium occurred progressively in most, but not all, of the arteries with aging.
It was found that independent of the upper and lower limbs, a higher accumulation of calcium, phosphorus, and magnesium occurred
in the arteries of the proximal regions with aging, compared with the arteries of the distal regions.
In a comparison between the arteries of anatomically corresponding regions of the upper and lower limbs, the accumulation
of calcium and magnesium was 20–60% higher in the external iliac and femoral arteries of the lower limb than in the axillary
and brachial arteries of the upper limb. Regarding phosphorus, the accumulation was 20–120% higher in the external iliac and
femoral arteries than in the axillary and brachial arteries. It was known that in humans, the accumulation of calcium, phosphorus,
and magnesium was three to seven times higher in the arteries of the lower limb than in the arteries of the upper limb. It
is clear that there is a very significant difference in the accumulation of calcium and magnesium in the arteries of the lower
limbs between Japanese monkeys and humans. The present study suggests that the accumulation of calcium and magnesium in the
arteries of the lower limb with aging is affected by the way of walking. 相似文献
13.
Tohno S Tohno Y Minami T Moriwake Y Azuma C Ohnishi Y 《Biological trace element research》2002,86(1):23-30
To elucidate the manner of element accumulation in the arteries with aging, the authors investigated the element contents
in the calcified and surrounding sites of the thoracic aortas by inductively coupled plasma-atomic emission spectrometry.
The subjects consisted of three men and five women, ranging in age from 45 to 99 yr. The calcified, calcification-surrounding,
and control (which appeared normal) sites were removed from the thoracic aortas and the element contents were determined.
It was found that the contents of calcium, phosphorus, magnesium, zinc, and aluminum were higher in the calcified site than
in the control site, whereas the contents of sulfur, iron, and lead were lower in the calcified site than in the control site.
The contents of the elements in the surrounding site were intermediate between those of the calcified and control sites, except
for the magnesium and lead contents, which were the lowest.
The mass ratios of magnesium to calcium and phosphorus were lower in the calcified site compared with the surrounding and
control sites, and as calcium and phosphorus increased in the aorta, the mass ratios lowered gradually in the aorta. 相似文献
14.
Gonzalez-Reimers E Rodriguez-Moreno F Martinez-Riera A Mas-Pascual A Delgado-Ureta E Galindo-Martin L Arnay-de la Rosa M Santolaria-Fernandez F 《Biological trace element research》1999,68(1):41-49
To elucidate accumulation of minerals in human iliac arteries with aging, the content of minerals was analyzed by inductively
coupled plasma atomic emission spectrometry. Bilateral common, internal, and external iliac arteries of 16 men and 8 women,
ranging ages from 65 to 93 yr, were examined. It was found that an extremely high accumulation of calcium and phosphorus occurred
in the common iliac artery at old age, being higher than that of the internal and external iliac arteries. It should be noted
that the accumulation of calcium and phosphorus is the highest in the common iliac artery among the human arteries examined
to date.
Regarding sexual differences, the content of calcium and phosphorus in the common and internal iliac arteries was higher in
women than in men, whereas their content in the external iliac artery was lower in women than in men. 相似文献
15.
Tohno S Tohno Y Moriwake Y Azuma C Ohnishi Y Minami T 《Biological trace element research》2002,87(1-3):83-93
To elucidate compositional changes of the cardiac valves with aging, the authors investigated the relationships among element
contents in the aortic valves, in which the accumulation of calcium and phosphorus was the highest. The subjects consisted
of 10 men and 14 women, ranging in age from 65 to 102 yr. Extremely significant direct correlations were found among the contents
of calcium, phosphorus, magnesium, sodium, and zinc in the aortic valves. In contrast, significant inverse correlations were
found between the contents of sulfur and the other elements, such as calcium, phosphorus, magnesium, and sodium. It should
be noted that these correlations present in the aortic valves were very similar to those in the arteries, especially those
in the thoracic aortas. The changes of the mass ratios of Mg/Ca and Mg/P in the aortic valves were similar to those in the
thoracic aortas. As calcium and phosphorus increased in the aortic valve, the mass ratios Mg/Ca and Mg/P decreased reversely
in the aortic valve. These results suggest that the compositional change of the aortic valve is very similar to that of the
thoracic aorta. 相似文献
16.
Ongkana N Zhao XZ Tohno S Azuma C Moriwake Y Minami T Tohno Y 《Biological trace element research》2007,119(2):120-127
To elucidate compositional changes of the pineal body with aging, the authors investigated age-related changes of elements
in the pineal body. After the ordinary dissection by medical students was finished, the pineal bodies and seven arteries were
resected from the subjects ranging in age from 58 to 94 years. The element contents were determined by inductively coupled
plasma atomic emission spectrometry. It was found that a high accumulation of Ca and P occurred in the pineal bodies with
aging. Regarding the relationships among the elements, it was found that there were significant direct correlations among
the contents of Ca, P, and Mg. With regard to the relationships between the pineal body and the arteries, no significant correlations
were found in the Ca content between the pineal body and the arteries, such as the thoracic and abdominal aortas and the coronary,
common carotid, pulmonary, splenic, and common iliac arteries. 相似文献
17.
Yumi Moriwake Yoshiyuki Tohno Setsuko Tohno Cho Azuma Takeshi Minami 《Biological trace element research》2001,83(2):121-132
To examine an accumulation of elements within the arteries with aging, the authors investigated the element contents in the
intimal, middle, and external tunicae of the thoracic aorta. The subjects consisted of six men and four women, ranging in
age from 57 to 99 yr. The wall of the thoracic aorta was separated into the intimal, middle, and external tunicae by scrubbing
the wall of the thoracic aorta with an edge of slide glass and the element contents were determined by inductively coupled
plasma-atomic emission spectrometry. It was found that there were significant relationships among calcium, phosphorus, magnesium,
sulfur, and sodium in both the intimal and middle tunicae of the aorta, but not in the external tunica. These results revealed
that no significant differences were found in element compositions of deposits between the intimal and middle tunicae. 相似文献
18.
Tohno Y Tohno S Azuma C Moriwake Y Naganuma T Ohnishi Y Minami T 《Biological trace element research》2003,96(1-3):93-107
To elucidate compositional changes of the thoracic duct with aging, the authors investigated age-related changes of elements
in the thoracic ducts in comparison with the azygos veins. The subjects consisted of 22 men and 1 woman, ranging in age from
65 to 95 yr. After ordinary dissection, the thoracic ducts and azygos veins were resected from the subjects and element contents
were determined by inductively coupled plasma-atomic emission spectrometry. It was found that calcium appeared to increase
in the thoracic duct with aging, but the other elements, such as phosphorus, sulfur, magnesium, iron, zinc, and sodium, did
not change significantly with aging. In the azygos vein, both calcium and sulfur increased significantly with aging.
Regarding the relationship among elements, extremely significant direct correlations were found among calcium, phosphorus,
sulfur, and magnesium in the thoracic ducts, except for phosphorus and magnesium contents with a very significant direct correlation.
In the azygos veins, significant direct correlations were found between calcium and sulfur contents and between sulfur and
magnesium contents. However, no significant correlations were found among calcium, phosphorus, and magnesium in the azygos
veins. These results revealed that with regard to the relationship among calcium, phosphorus, and magnesium, the thoracic
duct was similar to the arteries, but not to the azygos vein. 相似文献
19.
Azuma C Tohno S Mahakkanukrauh P Tohno Y Satoh H Chomsung R Minami T Moriwake Y Utsumi M Vaidhayakarn P 《Biological trace element research》2003,95(3):211-218
To analyze the accumulation of elements in the rami of the coronary arteries, the authors determined element contents in both
the coronary arteries and their rami of the Thai by inductively coupled plasma-atomic emission spectrometry. The subjects
consisted of 13 men and 6 women, ranging in age from 34 to 83 yr. It was found that a higher accumulation of calcium and phosphorus
occurred in the proximal sites of coronary arteries such as the anterior descending, right coronary, left coronary, and circumflex
arteries than the distal sites such as the diagonal, lateral, conus, acute marginal, and posterior descending arteries. The
accumulation of calcium and phosphorus in the anterior descending and right coronary arteries of the Thai increased remarkably
in the fifties, thereafter decreased, and increased again in the eighties. It should be noted that a very high accumulation
of calcium and phosphorus in the coronary arteries occurred in the fifties. In regard to relationships among the average contents
of elements in the coronary arteries and their rami, it was found that there were very significant direct correlations between
calcium and phosphorus contents, between calcium and magnesium contents, and between phosphorus and magnesium contents. These
results suggested that as calcium and phosphorus increased in the coronary arteries and their rami, magnesium increased simultaneously
in all of the coronary arteries and their rami. 相似文献
20.
Tohno S Tohno Y Hayashi M Mahakkanukrauh P Chomsung R Azuma C Moriwake Y Minami T Araki T 《Biological trace element research》2005,106(3):211-217
To examine whether an accumulation of elements in the arteries was affected by the way of walking, the authors investigated
age-related changes of elements in the arteries of the Japanese, Thai, and Japanese monkeys. After the ordinary dissections
by medical students were finished, the subclavian, axillary, brachial, radial, common iliac, externaliliac, femoral, and posterior
tibial arteries were resected from the subjects of the Japanese and Thai over 60 yr of age and they were also resected from
the Japanese monkeys over 20 yr of age. The element content was determined by inductively coupled plasma-atomic emission spectrometry.
It was found that in an comparison between the arteries of anatomically corresponding regions, the average content of Ca was
eight times or four times higher in the arteries of the lower limb than in the arteries of the upper limb in the Japanese
or Thai, over 60 yr of age, respectively. In the Japanese monkeys over 20 yr of age, the average content of Ca was 1.2 times
higher in the arteries of the lower limb than in the arteries of the upper limb. The result suggests that an accumulation
of Ca in the arteries of the lower limb with aging is affected by the way of walking. 相似文献