We have been successful in preventing induced cavities in rats using acupuncture stimulation. In order to more profoundly understand one aspect of that preventative mechanism, we studied rises in natural antibody values and special antibody values using the Jerne method. In so doing, we proved that when D-phenylalanine (DPA) is administered 30 minutes proir to acupuncture stimulation the rise which occurrs in antibody counts with acupuncture is great and the duration of the period of increase is lengthened. Such reports about acupuncture effects on the living body are many. That acupuncture strengthens the stability of the living body is an unquestionable fact.
In an effort to study the preventative effects of acupuncture or acupuncture supplemented by DPA, we performed the following experiment. We planted Sarcoma-180, a homotransplantable tumor which often displays an immune resistant effect in mice and observed the immunity level rises produced by acupuncture and acupuncture supplemented by the administration DPA.
ICR mice (male, 3 weeks old) were divided into 5 groups: I-control grop, II-treatment with carboxymethyl cellulose sodium (CMC) III-treatment with CMC and DPA, IV-treatment with CMC and acupuncture, V-treatment with CMC, DPA and Acupuncture
Sarcoma-180 cells were administered to all the rats subcutanously in a ratio 10⁶ cells/0.1ml after which cells were administered every 3rd day for a total of 4 times. DPA combined with 1% CMC was administered into the abdominal cavity in a concentration of 250mg/kg.
All of the mice were sacrificed on the 13th following the cancer transplant and the weight of the cancer, the liver and the spleen measured. Upon examinig for significant differences it was found that sigificant differences were indicated between Groups I and III, and I and V with a 1% danger rate, and I and IV with a 5% rate of danger. No signicant differnce was obseved between I and II.
It can be said that in the mice which received the Sarcoma-180 transplants macrophage funcctional insufficiency occured in a relatively early stage with decreased T lymph corpuscle functions occuring in the later stages. It can be assumed that in the process of interference with the functional in sufficiency, a preventative effect comes into play. In future studies we'd like to investingate the meaning of acupuncture for resistance to infection, etc.

Background: Lung cancer screening by chest X-rays and/or cytological tests of sputum has been practiced for many years. Nonetheless the number of deaths from lung cancer was kept increasing all this while. We wanted to find a way to decrease the mortality from lung cancer by investigating the screening methods or lifestyle to prevent the lung cancer.
Methods: I. The detection rate of lung cancer was investigated according to each method of screening-helical CT, chest X-rays or sputum tests, from 1998 to 2000.
II. Seventy-nine cases of lung cancer detected by the screening carried from 1995 to 2000 at our institute were compared with control cases matched with respect to age, sex and seasons of screening.
Results: I. The detection rate by helical CT in 1998, 1999, and 2000 was 0.29%, 0.24%, and 0.19%, respectively, while the detection rate by chest X-rays was 0.01%, 0.02% and 0.2%. There was no detection of lung cancer by sputum tests in those three years.
II. The ingestion of vegetables was the only one statistical difference between the lung cancer group and the control group. A lesser ingestion of vegetables increased the risk for lung cancer.
Conclusions: The detection rate of lung cancer by helical CT is remarkably higher than chest X-rays or cytological tests of sputum. People who eat a lot of vegetables have a lesser chance to suffer from lung cancer.

High-quality terminal care cannot be given without good communication and understanding among patients, their family members and health as well as medical professionals.Recently, we have taken a questionnaire survey on new inpatients in our hospital to sound them out on their thinkings about hospital care, and examined the findings along with the validity of survey.Many respondents including those contracting either benign or malignant diseases wished to be keptposted on what they are really up against and to partake in the decision-making process before treatment plans are put into practice. The recent questionnaire survey has proved to be worthwhile as a tool to know the wishes of hospitalized patients and suggested an effective way to promote the practice of obtaining informed consent before specific test and therapautic procedure.

Background: No consensus exists regarding which anthropometric measurements are related to bone mineral density (BMD), and this relationship may vary according to sex and age. A large Japanese cohort was analyzed to provide an understanding of the relationship between BMD and anthropometry while adjusting for known confounding factors. Methods: Our cohort included 10,827 participants who underwent multiple medical checkups including distal forearm BMD scans. Participants were stratified into four groups according to age (≥50 years or <50 years) and sex. The BMD values were adjusted for confounding factors, after which single and partial correlation analyses were performed. The prevalence of osteopenia was plotted for each weight index (weight or body mass index [BMI]) class. Results: Cross-sectional studies revealed that weight was more favorably correlated than BMI in the older group (R=0.278 and 0.212 in men and R=0.304 and 0.220 in women, respectively), whereas weight and BMI were weakly correlated in the younger age groups. The prevalence of osteopenia exhibited a negative linear relationship with weight among older women ≥50 years of age, and an accelerated increase was observed with decreasing weight in older men weighing <50 kg and younger women weighing <60 kg. When weight was replaced with BMI, the prevalence was low in most subgroups classified by weight. Conclusions Weight, rather than BMI, was the most important indicator of osteopenia but it might not be predictive of future bone loss.

A 77-year-old woman underwent endovascular abdominal aortic repair (EVAR) for an abdominal aortic aneurysm (AAA)．Five years after surgery, she visited the hospital with the chief complaint of a fever. Enhanced computed tomography (CT) showed enlargement of the AAA around the stent-graft and a mass, which was suspected to be an abscess, outside the aneurysm. A blood test revealed a high level of inflammatory response. The patient was diagnosed with infectious AAA. She received antibiotics; however, the inflammatory response did not completely improve. A second CT scan revealed that the suspected abscess had a spreading tendency. The patient was referred to our hospital for a highly suspected stent-graft infection. We performed Y-graft replacement using a rifampicin-immersed graft, and as much as possible of the wall around the aortic aneurysm was removed. The inflammatory response improved rapidly after the operation, and the patient was discharged 15 days later. According to the results of a pathological examination, a diagnosis of xanthogranulomatous inflammation and fibrosis was made. Here, we report a rare case of xanthogranulomatous inflammation of the aortic aneurysm wall after EVAR.

Objective: Hospitals throughout Japan are being integrated and reorganized under the government's regional medical care plan. However, the effects on cardiovascular surgery practice remain unknown. In the year 2016, our institution employed hospital integration; we report its effects on patients with type A acute aortic dissection who underwent emergency surgery. Methods: This study included 89 patients who underwent emergency surgery for type A acute aortic dissection from May 2012 to December 2020. Evaluation items included preoperative patient factors, number of surgeries, surgical mortality, referral rate, patient transport time, transport distance, number of surgeries performed by young cardiovascular surgeons, and overtime work for surgery. Patients were categorized into pre-(group P: 29 patients) and post-integration (group A: 60 patients) groups, which were retrospectively compared. Results: Preoperative factors were not significantly different between the two groups. Operations accounted for 29 and 60 in groups P and A, respectively; they increased significantly after integration (p=0.005). Surgical mortality was 27.6 and 15% in groups P and A, respectively, with no significant difference (p=0.2). The referral rate was 17 (58.6%) and 21 (35%) patients in groups P and A, respectively; group A displayed a significantly lower referral rate (p=0.04). The interval from the onset of symptoms to arrival at the surgery cite was significantly reduced (p=0.01) in group A (112±140 min) compared to group P (206±201 min). There was no significant difference in the transfer distance between groups P (13.9±14.8 km) and A (13.5±16.2 km). The number of surgeries performed by young surgeons increased in 9 cases (31%) in group P and 34 cases (56.7%) in group A (p=0.02). Overtime work was substantially reduced:446±154 min in group P and 349±112 min in group A. Conclusion: Hospital integration resulted in increased number of acute aortic dissection surgeries and decreased interval time from the onset of symptoms to arrival at the surgery cite. The young surgeons performed more surgeries and reduced their overtime work.