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C Orimoto

Publications and source records attributed to C Orimoto.

4 recordsLinked to original sources
PubMed1998

In- and out-flows of elements in bones embedded in reference soils.

Possible exchanges of elements between bone and the surrounding soil after being embedded underground for 2 years were estimated. Bone pieces were samples from human vertebrae without any treatments after resection. Sixteen elements were determined by atomic emission mass spectrometry. These were divided into three types; Type I, an in-flow in which elements increased, as in Fe, Al and Ba; type II, a balanced decrease in which changes were found in S, Mg and Zn; and type III, an out-flow in which elements, such as Ca and P, entered into bones from embedded soils. These exchanges depended on the varying nature of soils and also on the time underground. The exchanges were progressed in duration of the time after burial. Data obtained are possible references to judge the time-lapse after burial of bones in relating to characters of soils embedded, and to identify proper bone elements from containment elements.

Adult↗
PubMed1994

[Experimental exposure to carbon monoxide in rats (I)--Relation between the degree of carboxyhemoglobin saturation and the amount of carbon monoxide in the organ tissues of rats].

This paper presents the correlation between the degree of carboxyhemoglobin saturation and the amount of carbon monoxide (CO) in the organ tissues of rats. The experiment was performed to make male rats of the Sprague Dawley strain inhalate air containing 0.195% carbon monoxide in the exposure apparatus. Five experimental groups of various degrees of carboxyhemoglobin saturation were made by controlling the length of exposure time to CO gas (0.195% CO in air). After exposure to CO gas, the rats were killed by nitrogen gas. The carboxyhemoglobin saturation levels (COHb%) of each of the experimental group were 12.2 +/- 1.16, 31.6 +/- 2.38, 42.4 +/- 2.11, 52.3 +/- 1.81 and 73.6 +/- 3.01. Immediately following the death of the rats, blood from the right ventricle and several organ tissues were collected and analysed for CO by means of an Ecolyzer Model 2600 (CO analyzer). The order of CO amount in their organ tissues in decreasing order was blood > spleen divided by liver > lung > kidney divided by myocardium > encephalon divided by pectoral muscles. There was a good positive correlation between the degree of carboxy hemoglobin saturation (y%) and the CO content (x microliter/g) in the organ tissues examined. The results obtained were as follows: [table: see text] This report might be useful for deciding the cause of death for a burned cadaver who was discovered in a fire.

Animals↗
PubMed1994

[Experimental exposure to carbon monoxide in rats (II)--blood volume of organs obtained by calculations from amounts of carbon monoxide in organ tissues and in blood].

We have found a correlation between the degree of carboxyhemoglobin saturation and the amount of carbon monoxide (CO) in the organ tissues of rats. This essay is titled "Experimental exposure to carbon monoxide in rats (I)". In this report, the blood volumes in organs were calculated from the amount of CO in the blood and in the organ tissues of the same rat. The obtained blood volume (microliter/g of organ tissues) were as follows: spleen 0.196 +/- 0.0222 liver 0.186 +/- 0.0576, lung 0.166 +/- 0.0156, myocardium 0.095 +/- 0.0319, kidney 0.094 +/- 0.0267 and encephalon 0.033 +/- 0.0183. Except for the 10% COHb experimental group, it has become clear that the blood volume in the spleen and in the kidney did not change much despite the variation of degree of carboxyhemoglobin saturation. In order to diagnose the cause of death of a burned cadaver in which the heart did not contain the liquid blood, values of CO amounts should be determined from those in the spleen or the kidney.

Animals↗