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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.
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
3.
Ongkana N Tohno S Mahakkanukrauh P Minami T Tohno Y 《Biological trace element research》2008,124(3):236-242
To elucidate compositional changes of the uterine artery with aging, the authors investigated age-related changes of elements in the uterine arteries of Thai. After ordinary dissection by medical students at Chiang Mai University was finished, the uterine arteries were resected from Thai subjects. Thai subjects ranged in age from 27 to 86 years (average age = 63.3 +/- 17.7 years). The element content of the uterine arteries was analyzed by inductively coupled plasma-atomic emission spectrometry. It was found that the Ca, P, and Na contents increased progressively in the uterine arteries of Thai with aging. A significant accumulation of Ca and P in the uterine arteries of Thai was found in the sixties patients, and the accumulation increased markedly in the seventies. Regarding the uterine arteries in subjects more than 60 years, the extent of accumulation of Ca and P in the uterine arteries of Thai was one half of that in the uterine arteries of Japanese. Regarding the relationships among elements, extremely significant direct correlations were found among the contents of Ca, P, Mg, Zn, and Na in the uterine arteries of Thai. As Ca increased in the uterine arteries of Thai, P, Mg, Zn, and Na increased simultaneously in the arteries. 相似文献
4.
Yoshiyuki Tohno Setsuko Tohno Ranida Quiggins Takeshi Minami Pasuk Mahakkanukrauh 《Biological trace element research》2018,184(1):24-32
To elucidate age-related changes of the sinoatrial (sinuatrial) nodal (SAN) artery, the authors investigated age-related changes of elements in the SAN artery by direct chemical analysis. In addition, the effects of different arterial origins, arterial sizes, and genders on element accumulation were investigated in the SAN artery. Fifty-nine formalin-fixed adult Thai hearts were dissected, and the following three types of the SAN artery were found: The first type was a single SAN artery arising from the right coronary artery (RCA). The second type was a single SAN artery arising from the proximal segment of the left circumflex artery (LCX). The third type was dual SAN artery arising from both the RCA and the LCX. For element analysis, both 41 single SAN arteries arising from the RCA and the LCX and 18 larger branches of dual SAN artery were used. After the arteries were incinerated with nitric acid and perchloric acid, element contents were determined by inductively coupled plasma-atomic emission spectrometry. It was found that seven element contents such as Ca, P, S, Mg, Zn, Fe, and Na did not change significantly in the SAN arteries with aging. Regarding the relationships among seven elements in the SAN arteries, extremely significant direct correlations were found among P, S, Mg, and Fe contents with one exception. However, no significant correlations were found between Ca and either P or Mg contents in the SAN arteries. To examine an effect of the different arterial origins on element accumulation, the SAN arteries were separated into the RCA and the LCX groups by the arterial origin and age-related changes of element contents were compared between two groups. It was found that there were no significant differences between the RCA and the LCX groups in age-related changes of Ca and P contents. No gender differences were found in age-related changes of Ca and P contents in the SAN arteries. To elucidate whether calcification occurred in the SAN arteries in old age, both the mass ratios of Ca/P and Mg/Ca were estimated in the SAN arteries. The mass ratio of Ca/P increased progressively in the SAN arteries with Ca increase, being not constant. The mass ratio of Mg/Ca decreased gradually in the SAN arteries with Ca increase, but the average mass ratio of Mg/Ca was very high, being 49.4 ± 16.5%. These results indicated that calcification scarcely occurred in the SAN arteries in old age, independently of the arterial origin and gender. 相似文献
5.
After the first dose injection of pegylated interferon alpha-2b (Peg-IFN alpha-2b) to a HCV infected Thai woman, she developed cyclic painful swelling nodules on right upper quadrant of abdomen and right anterior lower chest wall. The nodules subsided spontaneously within 1-2 days but were recurrent after every Peg-IFN alpha-2b injection. She also experienced acute urticaria. After nine months of therapy, an immature male of G. spinigerum migrated out from the skin nodule shortly after a Peg-IFN alpha-2b injection as scheduled. The worm showed a head-bulb bearing 8 transverse rows of spines which indicated immature stage. It had well defined four pairs of caudal papillae on posterior body part which were used to identify male gender. Painful migratory swelling and urticaria disappeared after the parasite was removed. She was continually treated and had sustained both virological and biochemical responses to HCV treatment. This case demonstrates that the outward migration of G. spinigerum may be stimulated by the injection of Peg-IFN alpha-2b. 相似文献
6.
Setsuko Tohno Tsuyoshi Ishizaki Yusuke Shida Yoshiyuki Tohno Takeshi Minami Pasuk Mahakkanukrauh 《Biological trace element research》2011,142(3):335-349
To elucidate compositional changes of the visual system with aging, the authors investigated age-related changes of elements
in the optic chiasma, lateral geniculate body, and superior colliculus, relationships among their elements, relationships
among their brain regions from a viewpoint of elements, and gender differences in their elements by direct chemical analysis.
After ordinary dissection at Nara Medical University was finished, the optic chiasmas, lateral geniculate bodies, and superior
colliculi were resected from identical cerebra of the subjects. The subjects consisted of 14 men and 10 women, ranging in
age from 75 to 96 years (average age = 85.6 ± 5.9 years). After ashing with nitric acid and perchloric acid, element contents
were determined by inductively coupled plasma-atomic emission spectrometry. As the result, the average content of P was significantly
higher in the optic chiasma and superior colliculus compared with the lateral geniculate body. Regarding age-related changes
of elements, no significant changes with aging were found in seven elements of the optic chiasma, lateral geniculate body,
and superior colliculus in the subjects more than 75 years of age. The findings that with regard to the relationships among
elements, there were extremely significant direct correlations between Ca and Zn contents and significant inverse correlations
between Mg and Na contents were obtained in common in all of the optic chiasma, lateral geniculate body, and superior colliculus.
It was examined whether there were significant correlations among the optic chiasma, lateral geniculate body, and superior
colliculus in the seven elements and the following results were obtained: There were significant direct correlations between
the optic chiasma and lateral geniculate body in both the P and Mg contents; there was a significant direct correlation between
the optic chiasma and superior colliculus in the Fe content; and a significant direct correlation was found between the lateral
geniculate body and superior colliculus in the Mg content. Regarding the gender differences in elements, it was found that
both the Ca and Zn contents of the lateral geniculate body were significantly higher in women than in men. 相似文献
7.
Tohno S Naganuma T Ongkana N Mahakkanukrauh P Tohno Y Azuma C Moriwake Y Minami T Maruyama H 《Biological trace element research》2007,116(2):111-118
To elucidate compositional changes of the uterine artery with aging, the authors investigated age-related changes of elements
in the uterine arteries. After ordinary dissection by medical students at Nara Medical University was finished, the uterine
arteries were resected from the subjects. The element content of the uterine arteries was analyzed by inductively coupled
plasma-atomic emission spectrometry. The subjects ranged in age from 58 to 99 yr (average age=82.7±10.1 yr). It was found
that the Ca, P, and Na contents increased progressively in the uterine arteries with aging. A significant accumulation of
Ca and P in the uterine arteries was found in the sixties and increased markedly in the eighties. It should be noted that
as far as the arteries in those over 70 yr of age, the extent of accumulation of Ca and P was the highest in the uterine arteries
within the limits of the arteries analyzed by us. Regarding the relationships among elements, significant direct correlations
were found among the contents of Ca, P, Mg, Zn, and Na. As Ca increased in the uterine arteries, P, Mg, Zn, and Na increased
simultaneously in the arteries. 相似文献
8.
Tohno Y Tohno S Mahakkanukrauh P Minami T Sinthubua A Suwannahoy P Khanpetch P Azuma C 《Biological trace element research》2012,145(3):275-282
To clarify the manner of accumulation of Ca and P in the coronary arteries, the authors divided the coronary arteries into
many segments based on arterial ramification and investigated the element contents of the segments by direct chemical analysis.
After ordinary dissection at Chiang Mai University was finished, the left coronary (LC) and the right coronary (RC) arteries
were removed successively from the hearts of Thai subjects. The Thai subjects consisted of seven men and five women, ranging
in age from 42 to 87 years (average age = 73.9 ± 13.5 years). The LC and the RC arteries were divided into 19 segments based
on arterial ramification. After incineration with nitric acid and perchloric acid, element contents of the segments were analyzed
by inductively coupled plasma–atomic emission spectrometry. In two cases, a significant content of Ca and P was contained
only in the left anterior descending (LAD) artery (type I). In four cases, a significant content of Ca and P was contained
in both the LAD and the RC arteries (type II). In five cases, a significant content of Ca and P was contained in all the LAD,
the RC, and the circumflex (CF) arteries (type III). In the other one case, no significant content of Ca and P was contained
in the coronary arteries. The manner of accumulation of Ca and P in the coronary arteries was classified into the three types,
I, II, and III. Regarding the average content of elements in 12 cases, the average content of Ca was the highest in the segment
of the LAD artery ramifying the first left diagonal artery and was higher in the proximal and distal adjacent segments of
the LAD artery ramifying the first left diagonal artery, the proximal segment of the RC artery, and the proximal segment of
the CF artery. To examine an effect of arterial ramification on accumulation of Ca and P, the differences in the Ca and P
content between artery-ramifying and non-ramified proximal or distal segments of the coronary arteries were analyzed with
Student’s t test. It was found that there were no significant differences in the Ca and P content between the artery-ramifying and non-ramified
proximal or distal segments of the coronary arteries. 相似文献
9.
Characteristics of the Three Ligaments of Human Spring Ligament Complex from a Viewpoint of Elements
Tohno Y Tohno S Taniguchi A Azuma C Minami T Mahakkanukrauh P 《Biological trace element research》2012,146(3):293-301
To elucidate characteristics of the three ligaments constituting the spring ligament complex from a viewpoint of elements,
the authors investigated age-related changes of elements, relationships among their elements, relationships among ligaments
in the elements, and gender differences in the three ligaments of the spring ligament complex, the superomedial calcaneonavicular
(SMCN), inferoplantar longitudinal calcaneonavicular (ICN), and third or medioplantar oblique calcaneonavicular (TCN) ligaments.
After ordinary dissection at Nara Medical University was finished, the SMCN, ICN, and TCN ligaments of the spring ligament
complex were removed from the subjects. The subjects consisted of 10 men and 12 women, ranging in age from 62 to 99 years
(average age = 80.5 ± 9.7 years). After incineration with nitric acid and perchloric acid, the element contents were determined
by inductively coupled plasma-atomic emission spectrometry. It was found that although the Ca and P content hardly changed
in the SMCN ligament with aging, the Ca and P content in the ICN ligament increased to about three and five times higher in
the 80s in comparison with the 60s, respectively, whereas in the TCN ligament, it increased about 40% and 90% higher in the
80s compared with the 60s, respectively. Regarding the relationships among elements, significant direct correlations were
found among the contents of Ca, P, and Mg in all the three ligaments of the spring ligament complex. This finding was in agreement
with the previous finding obtained with the three ligaments of the anterior cruciate ligament, posterior longitudinal ligament,
and ligamentum capitis femoris. Whether there were significant correlations among the three ligaments of the spring ligament
complex with regard to the Ca, P, S, Mg, Zn, and Fe contents was examined using Pearson’s correlation. It was found that there
were significant direct correlations between the SMCN and TCN ligaments in all the Ca, P, Mg, and Zn contents and also between
the SMCN and ICN ligaments in both the Mg and Fe contents but not between the TCN and ICN ligaments in the six element contents.
Regarding the gender difference in elements, a significant gender difference was found only in the Mg content of the SMCN
ligament, being significantly higher in men than in women. 相似文献
10.
Tohno S Tohno Y Azuma C Moriwake Y Satoh H Minami T Mahakkanukrauh P Ohishi T Hayashi M 《Biological trace element research》2006,110(3):233-249
To elucidate compositional changes of the cardiac walls with development and aging, the authors investigated changes of elements
in the atrial and ventricular walls of monkeys. The left and right atrial walls, left and right ventricular walls, and interatrial
and interventricular septa were resected from the subjects. The subjects consisted of 17 rhesus and 13 Japanese monkeys, ranging
in age from 10 d to 33 yr. The element content of the cardiac walls was analyzed by inductively coupled plasma-atomic emission
spectrometry. The Ca and P contents decreased in all of the left and right atrial and ventricular walls, interatrial septa,
and interventricular septa with development, whereas the S and Mg contents decreased in the left and right ventricular walls
with development. Regarding the relationships among elements, significant direct correlations were found among Ca, P, Mg,
and Zn in all of the left and right atrial walls, left and right ventricular walls, and interatrial and interventricular septa,
with some exceptions. As Ca decresed in the cardic walls, P, Mg, and Zn decreased simultaneously in the cardiac walls. The
mass ratio of Ca/P decreased gradually with Ca decrease in both the atrial and ventricular walls, but it was not constant. 相似文献