-
Sumiko NAGATSUKA, Yoshiyuki TANIZAKI, Masao YAMAZAKI
1982 Volume 31 Issue 2 Pages
69-73
Published: February 15, 1982
Released on J-STAGE: September 07, 2010
JOURNAL
FREE ACCESS
The instrumental neutron activation analysis was applied to the multielemental analysis of the freshwater diatoms taken from the head and the lower areas of Tama river.
Dry samples of the diatoms were irradiated for 1 minute (for the measurement of short lived nuclides) by pneumatic tube of TRIGA-II reactor of Musashi Institute of Technology, and 12 hours (for the measurement of long lives nuclides) in F ring of TRIGA-11 reactor of Rikkyo University.
The analytical results of 20 elements in the samples were obtained, and the concentration of Ti showed high values in all the sample. Since it is considered that Ti
is absent in algae, these high values indicate that apprecible amounts of river sediment were contained in the samples. Therefore, the analytical results were corrected for Ti
contents in the samples.
The concentrations of Mg, K, Zn, Mn
and Co
in the diatoms showed no difference between the two sampling points. The concentrations of Cr, V, As
and Sb
in the diatoms, however, showed difference between the two sampling points, depending on the river water quality.
In Stenopsyche grisepennis, on the other hand, the concentrations of Mn
and Co
depend on the river water quality, and the concentrations of Cr
depend on the amount of diatoms staying in the body. The concentrations of V, As
and Sb
in the Stenopsyche griseipennis are considered to depend both on the amount of diatoms and river sediment staying in the body.
View full abstract
-
—Dominant lethal test in mice—
Tohru SHIBUYA, Tetsuro MUROTA, Shigeo IWAHARA, Koroku HASHIMOTO, Atsuk ...
1982 Volume 31 Issue 2 Pages
74-77
Published: February 15, 1982
Released on J-STAGE: September 07, 2010
JOURNAL
FREE ACCESS
Alcohol extracts freshly prepared from gamma-irradiated and unirradiated potatoes were tested for the ability to induce dominant lethals in BDF1 mice. Male mice were given 0.5 ml of extract twice a day, p.o., for 7 days and then mated with untreated female mice. Female mice were sacrificed on about the 13th day of pregnancy. No significant difference was observed in the number of living implants between the group treated with extract prepared from unirradiated potatoes and that treated with the extract from 150 Gy (15 krad) irradiated potatoes.
View full abstract
-
Masaki SHINOGI, Miyuki NAKAZAWA, Kayoko FUKUDA, Itsuhiko MORI
1982 Volume 31 Issue 2 Pages
78-81
Published: February 15, 1982
Released on J-STAGE: September 07, 2010
JOURNAL
FREE ACCESS
Six elements, Cd, Co, Cu, Mn, Se
and Zn,
in the metallothionein fractions from liver of rat injected various metals (Cd, Co, Cu, Hg, Se
and Zn)
were analyzed by neutron activation analysis and were investigated metal binding of it. The concentrations of Cd
and Zn
were increased by administration of Cd
and those of Co
and Se
were also increased by administration of the each element. On the contrary, the concentration of Cd
and Cu
were decreased by administration of Se.
It may be considered that Co
and Se
are attached to metallothionein, if its protein is present and the presence of Se
influence the binding of Cu
and Cd
to metallothionein, further it also influence Cd-
thionein production.
View full abstract
-
Hiroshi SHIBATA, Masanori SOGOU
1982 Volume 31 Issue 2 Pages
82-87
Published: February 15, 1982
Released on J-STAGE: September 07, 2010
JOURNAL
FREE ACCESS
Gastrointestinal transit in the chicken was investigated by using 198Au-
colloid as a marker. Gastrointestinal transit was determined following administration of a 198Au-
colloid solution (370 kBq (10μ
Ci), 0.5 ml) into the proventriculus by measuring the distribution of radioactivity in the gastrointestine.
Most of 198Au-
colloid administered into the proventriculus was transfered instantly to the gizzard and subsequently, some part of it quickly to the duodenum and the upper segment of the jejunoileum. A considerable quantity of 198Au-
colloid in the duodenum, the upper and middle segment of the jejunoileum regurgitated to the gizzard.
198Au-
colloid transfered to the caecum was retained for a long time (more than 48 hours) in these segments. A part of 198Au-
colloid was found in the feces 90 to 120 minutes after administration into the proventriculus and the greater part of it was excreted into the feces 24 to 48 hours. Subcutaneus administration of acetylcholine (2 mg/kg) increased the gastrointestinal transit but atropine (2 mg/kg) decreased.
View full abstract
-
Makoto SHIMIZU, Kenji HOSHI, Masako ASATSU, Reiko CHIDA, Daijiro TSUJI ...
1982 Volume 31 Issue 2 Pages
88-93
Published: February 15, 1982
Released on J-STAGE: September 07, 2010
JOURNAL
FREE ACCESS
Measurement of serum concentration of trypsin by RIA-Gnost Trypsin kit (Hoechst-Japan) was evaluated. The clinical usefulness of measuring serum trypsin level in diabetic patients was assessed.
The measurement of trypsin using the radioimmunoassay (RIA) kit revealed good precision, and reproducibility with intraassay error ranging from 3.6 to 5.5% in C.V. corresponding to mean trypsin concentration of 236.5-838.7 ng/ml and interassay error ranging from 8.1 to 11.1 %. Tests for recovery and dilution were satisfactory for clinical use.
Clinical materials included 35 normal subjects, 88 diabetics, 22 patients with liver diseases, 3 with acute pancreatitis, 7 with chronic pancreatitis and 3 with chronic renal failure.
Serum trypsin concentration in normal controls was 157.6±59.9 ng/ml (m+1 S.D.) . Diabetic patients treated with diet therapy alone revealed serum trypsin level of 203.6±74.8 ng/ml (n=50) . In diabetics treated with sulfonil urea serum trypsin was 171.3±83.0 ng/ml (n=25) . In patients receiving insulin serum trypsin level was 90.5±49.0 ng/ml (n=13) . In patients with liver diseases, acute pancreatitis, chronic pancreatitis and chronic renal failure serum trypsin concentration were 236.9±88.0, 520.1±80.0, 113.0±75.6, and 2557±2771 respectively.
Our results may indicate impaired pancreatic exocrine function in patients with severe diabetes mellitus. Increased serum trypsin level in diabetics treated with diet therapy may be due to stimulated excretion of trypsin resulted from restricted food intake.
However, further study in larger number of patients is needed.
View full abstract
-
Hidemoto NAKAGAWA, Kiyoshi NOMURA, Yusuke UJIHIRA
1982 Volume 31 Issue 2 Pages
94-97
Published: February 15, 1982
Released on J-STAGE: July 21, 2010
JOURNAL
FREE ACCESS
-
Nobuhito ISHIGURE, Osamu MATSUOKA
1982 Volume 31 Issue 2 Pages
98-100
Published: February 15, 1982
Released on J-STAGE: July 21, 2010
JOURNAL
FREE ACCESS
-
Akira YOSHITAKE, Hideyuki GOMI, Iwao NAKATSUKA
1982 Volume 31 Issue 2 Pages
101-103
Published: February 15, 1982
Released on J-STAGE: July 21, 2010
JOURNAL
FREE ACCESS
-
Hyobu ICHINOHE, Makoto HOSHI, Junichi ISHIYAMA, Tadayoshi ISHIKAWA, Hi ...
1982 Volume 31 Issue 2 Pages
104-106
Published: February 15, 1982
Released on J-STAGE: July 21, 2010
JOURNAL
FREE ACCESS
-
Masatoshi KOBAYASHI
1982 Volume 31 Issue 2 Pages
107-113
Published: February 15, 1982
Released on J-STAGE: July 21, 2010
JOURNAL
FREE ACCESS
-
Keiji MIYANO, Hiroko FUKATSU, Hideo HIGUCHI
1982 Volume 31 Issue 2 Pages
114-118
Published: February 15, 1982
Released on J-STAGE: July 21, 2010
JOURNAL
FREE ACCESS
-
Shigeo BABA
1982 Volume 31 Issue 2 Pages
119-126
Published: February 15, 1982
Released on J-STAGE: July 21, 2010
JOURNAL
FREE ACCESS
-
1982 Volume 31 Issue 2 Pages
A9P-A22M
Published: February 15, 1982
Released on J-STAGE: July 21, 2010
JOURNAL
FREE ACCESS