The inflammatory changes in both the gastric mucosa and the mucosa surrounding ulcer, cancer and polyp were investigated histo-pathologically. Materials were obtained from 145 cases consisting of 71 cases of gastric ulcer, 53 cases of gastric cancer and 21 cases of gastric polyp. Based on the studies of the inflammatory changes in the gastric mucosa mede by Dr. Hirafuku et. al, the following classification and results were obtained:
1. From three elements of P.F.I., the histological patterns of the attendant gastritis were divided into two patterns of non-metaplasia and metaplasia. They were classified into 18 patterns as follows:
As non-metaplasical pattern ……8 patterns inclusive of normal.
As metaplasical pattern …………4 patterns of diff usable metaplasia.
6 patterns of antrum metaplasia.
2. The antrum atrophic-hyperplastic gastritis (P₁, P₁×P₂, P₁I₂, P₁×P₂I₂) was most seen in the attendant gastritis of gastric ulcer. Accordingly, it was found mainly either in the non-metaplasical pattesn or the antrum metaplasical pattern.
3. The mucosa surrounding ulcer was stronger in atrophy than the mucosa of gastric ulcer and higher at the attendant rate of intestinal metaplasia. Therefore, it can be said that the attendant gastritis of gastric ulcer is a ulcer-centric gastritis.
4. The diff usable atrophic-hyperplastic gastritis (P₁F₁, P₁×P₂F₁, (P₁F₁) I₂, (P₁×P₂F₁) I₂, P₁I₂F₁, P₁×P₂I₂F₁) and the antrum atrophic gastritis (P₂, (P₂F₁) I₂, P₂I₂) were many found in the attendant gastritis of gastric cancer which were many in order of the pattern each of the non-metaplasia, antrum metaplasia and diffusable metaplasia.
5. The attendant gastritis of gastric cancer showed a stronger atrophy than that of gastric ulcer.
6. The mucosa surrounding cancer was more atrophic-hyperplastic in comparison with the mucosa of gastric cancer. That is, it was liable to be weak in the extent of atrophy contrariwise to the gastric ulcer and this trend was especially remarkable in young people. Besides, high atrophy on the mucosa surrounding cancer was liable to be found in highlyaged people.
7. The attendant gastritis of gastric polyp was seen in either pattern of the non-metaplasia or the antrum metaplasia and it was mainly found in those, the non-metaplasical (P₁F₁, P₁×P₂F₁) and the antrum metaplasical pattern (P₁I₂F₁, P₁×P₂I₂F₁), of the duff usable atrophic-hyperplastic gastritis.
8. In the viewpoint that the atrophic-hyperplastic was found much in the mucosa of gastric polyp and that all the cases of the polyp surrounding particularly showed the atrophic-hyperplastic, it can be said that this atrophic-hyperplastic is one of the factors forming the polyp.
9. Above all, “état mammelonné”was seen at a high rate in the mucosa of gastric polyp and the mucosa surrounding polyp. Furthermore, the gastric polyp as well as the“état mammelonné”was also seen in highly-aged people. For these facts, it is considered that this“état mammelonné”is one of the factors forming the polyp and it can, therefore, be said that the polyp is found many at the antrum.

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Skin graft were exchanged between inbred strain mice and their Fl hybrids. Then, the relationship between survival time of those skin grafts and mitotic metaphases in the recipient mice after skin grafting wre investigated. Those mice such as C₃H/He, AKR and CBA with the identical H-2 histocompatible factors showed further elongation of skin survival time as compared with the H-2 histocompatible strain. Although the difference in H-2 seems to be greatly effective on the rejection of grafts, its extent is variable.
After parabiosing C₃H/He and the same sexual DDD, parabiotic union was spontaneously separated on 8.3 postoperative day or one partner died of parabiotic disease. Parabiotic union between C₃H/He and its F1 hybrid continued for 11.2 days on an average and that between DDD and F1 was durable for 57.3 days (mean)
Although the grafts from parent to F1 hybrid survived for a long time, but the bone marrow cells 10 days after skin grafting showed a remarkable declination of mitotic metaphases.
These experimental results suggest that the existence of equilibration between survival time of skin homografts and duration of parabiotic union. In genetically close relationship such as parent and F1 hybrid, a barrier of weak histocompatibility can be suppressed by ⁶⁰Co irradiation. It was suggested that an immune response should be inhibited by any means even in genetically close combination.

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42 mongrel dogs were subjected to produce myocardial ischemia by gradual constrictors. The constrictors were aplied the origin of anterior descending branches.
Each left internal mammary arteries were implanted in anterior wall of the left ventricles by the Vineberg technique, and followed up after 16 days to 9 months, And the incidence of patency and the presence of collaterals were determined in vivo and postmortem studies.
1) Patency of implanted internal mammary was 28 percent in arteriograms, but in radiograph of resected hearts, the patency was 72 percent. On the other side, the patency was 100 percent in cases which were obstructed completely in anterior descending branches.
2) The presence of collateral anastomoses between the implant and coronary artery branches was recognized 17 percent in angiogram and it was recognized 22 percent in radiograph of resected hearts. Also the development of collateral anastomoses, in complete obstructed cases, was indicated high degree.
3) Casts of implanted internal mammary arteries and coronary arteries which made from injection of synthetic resign showed 300 μ-600μ thick of anastomosed branches.
4) Hystological inspections justified results from angiograms and casts.

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From January 1966 to September 1971, 1, 079 Cardioangiographies were performed in the department of surgery of Showa University Hospital. 9 serious complications occured for an incidence of 0.8 per cent.
Of the 6 patient who were examined by the transfemoral retrograde angiography, thromboembolism of the punctured site occured in 5 patients and a fractured guidewire in one patient.
Congestive heart failure and cardiac tamponade occured in another 2 patients during or after the right heart catheterization.
A relatively high incidence of intramural injections of contrast media obsurved in the translumbar angiogaphy.

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