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The influence of cigarette smoke on pulmonary function, airflow, lung volume, and transfer factor in patients with asthma was examined in 40 subjects over the age of 70 years (20 ever-smokers and 20 never-smokers), and 20 patients with pulmonary emphysema over age 70 (all ex-smokers). The ventilatory parameters showing airflow limitation (% FEV(1) and FEV(1)%) were not significantly different between ever-smokers and never-smokers of elderly asthmatics. In contrast, % FEV(1) and FEV(1) % values were significantly lower in patients with pulmonary emphysema than in those with asthma with or without a history of smoking. The % RV value was significantly larger and % DLco value was significantly more decreased in ever-smokers compared with neversmokers of the elderly asthmatics. However, there were no significant differences in % RV and % DLco values between asthmatics with a history of smoking and patients with pulmonary emphysema. The results show that cigarette smoke inflluences % RV and % DLco, but not % FEV(1) and FEV(1) %, suggesting airflow limitation of large and moderate size airways., 高齢者気管支喘息40例(20年以上の喫煙者20例,非喫煙者20例)および肺気腫(全症例喫煙者)20例を対象に,長期間喫煙の肺機能,airflow,lung volume およびlung transfer factor,に及ぼす影響について検討した｡まずFVC値は,喘息の喫煙例,非喫煙例,および肺気腫症例の間に有意の差は見られなかった｡% FEV(1)およびFEV(1)/FVC値は,喫煙例,非喫煙例いずれの喘息症例も肺気腫と比 べ有意に高い値を示したが,喘息の喫煙例と非喫煙例の間には有意差は見られなかった｡一方,% RVおよびDLco値は,喘息の非喫煙例に比べ,喫煙例および肺気腫症例で有意に低い値を示した｡ これらの結果は,長期間の喫煙は% FEV(1)やFEV(1)/FVCにはあまり影響しないこと, しかし,% RVや% DLcOにはかなり影響することを示している｡

The influence of cigarette smoking on the pathophysiology of asthma in the elderly remains controversial. In this study, the inluence of cigarette smoking on IgE - mediated allergy including the generation of leukotrienes B4 (LTB4) and C4 (LTC4) was examined in forty asthmatics over the age of 70 years (20 ex-smokers and 20 never-smokers), and 20 patients with pulmonary emphysema over age 70 (all ex - smokers). The frequency of patients with serum IgE more than 200 IU/ml was significantly larger in smoking asthmatics than in non - smoking asthmatics. The incidence of patients with positive RAST score for inhalant allergens, was also significantly higher in patients with a history of smoking than in those without a smoking history. There were no significant differences in the frequency of patients with positive RAST and those with serum IgE more than 200 IU/ml between non-smoking asthmatics and patients with pulmonary emphysema. The generation of leukotriene B4 (LTB4) by leukocytes was significantly more increased in ex-smokers than in never-smokers in the elderly asthmatics. The results suggest the possibility that cigarette smoking enhances IgE - mediated allergy in elderly patients with asthma., 高齢者喘息の病態に対する喫煙の影響については,なお不明な点が多い｡本研究では,70歳以上の気管支喘息40例(喫煙歴20年以上の症例20例,非喫煙症例20例)および70歳以上の肺気腫20例(全例喫煙者)を対象に,IgE-mediatedallergy(LTB4,LTC4の産生を含む)に対する喫煙の影響について検討した｡血清IgE値が200IU/ml以 上を示す症例の頻度は,喘息の喫煙例で非喫煙例や肺気腫症例と比べ有意に高い値を示した｡吸入抗原に対する特異的IgE抗体が陽性を示す症例の頻度は,喘息の喫煙例で非喫煙例や肺気腫に比べ有意に高い値を示した｡しかし,血清IgEが200IU/ml以上の症例の頻度およびRAST陽性例の頻度は,喘息の非喫煙例と肺気腫例の間には有意 の差は見られなかった｡LTB4の産生は,喘息の喫煙例で,非喫煙例と比べ有意の亢進が見られた｡また,肺気腫例では,喘息の非喫煙例に比べ,有意に高い産生が見られた｡しかし,LTC4の産生には喘息の喫煙例,非喫煙例,肺気腫例の間に有意の差は見られなかった｡

Influence of cigarette smoking on the pathogenesis of asthma in the elderly remains controversial. This study was undertaken to clarify the influence of cigarette smoking on IgE-mediated allergy, bronchial hyperresponsiveness, and the generation of leukotrienes B4 (LTB4) and C4 (LTC4) by leukocytes in 48 elderly patients (25 patients with a history of smoking for more than 20 years and 23 never-smokers) with asthma over the age of 70 years. 1. The incidence of positive IgE antibodies for inhalant allergens was significantly higher in asthmatics with a history of smoking than in never-smokers of asthmatics. 2. In bronchial hyperresponsiveness for methacholine, the Cmin was significantly lower in ever-smokers than in never-smokers of elderly asthmatics. 3. The generation of LB4 was significantly increased in patients with a history of smoking compared with those without a smoking history. However, the difference in LTC4 generation was not significant between ever-smokers and never-smokers of asthmatics. These results suggest that cigarette smoking increases bronchial hyperresponsiceness through IgE-mediated allergy and LTB4 generation., 高齢者喘息の病態におよぽす喫煙の影響についてはなお不明な点が多い｡本論文では,IgEにmediateされるアレルギー反応,気道過敏性,ロイコトリエンB4 (LTB4),C4(LTC4)産生に及ぼす喫煙の影響について,48例(20年以上の喫煙歴のある症例25例,非喫煙例23例)の70歳以上の高齢者喘息症例を対象に検討した｡ 1.吸入抗原に対する特異的IgE抗体の陽性頻度は,喫煙歴のある症例で,非喫煙例と比べ有意に高い値を示した｡ 2.メサコリンに対する気道過敏性の検討では,平均Cminは,喫煙例(949μg/ml)において非喫煙例(1677μg/ml)に比べ有意に低い値 を示し,喫煙例でより気道の過敏性が高いことが示された｡ 3.LTB4の産生は喫煙例で非喫煙例に比べ有意に高い傾向を示したが,LTC4に関しては両群間に有意の差は見られなかった｡以上の 結果より,長期間の喫煙は,IgEにmediateされるアレルギーやLTB4産生の亢進などを通じて気道過敏性を亢進させる可能性が示唆された｡

Background-The influence of cigarette smoking on the pathogenesis of asthma in the elderly remains controversial. This study attempts to estimate longitudinal changes in HRCT (high resolution computed tomography) parameters and pulmonary function parameters obtained for ex-smokers and never-smokers in asthmatics during 4-yr follow-up period. Methods-Fourteen asthmatics (6 ex-smokers and 8 never-smokers) were studied to determine the influence of aging and cigarette smoking on pulmonary function, and mean lung density (MLD) and the relative area of the lung showing attenuation values less than -950 HU (RA950) on HRCT scans. Results-The values of FVC and FEV1, were significantly more decreased in asthmatics without a smoking history during 4-yr follow-up period. The values of FVC, FEV1, FEV1/FVC and DLco/VA were significantly decreased and RV/TLC were significantly increased in asthmatics with a smoking history over 4 years, and annual decline in FEV1 ex-smokers was larger than that in never-smokers. In the upper lung field, inspiratory MLD was observed to shift in a negative direction and inspiratory RA950 was found to increase during 4-yr observation period in ex-smokers, but not in never-smokers. In the middle lung field, inspiratory RA950 was significantly enhanced in both two groups. Although expiratory MLD, expiratory RA950 and exp RA950/ins RA950 were observed to change significantly during the observation period in ex-smokers, no changes were observed in never-smokers. Conclusion-These results suggest that aging augments airspace enlargement predominantly in the middle lung field, while long term cigarette smoking further worsens emphysematous alterations in the upper lung field., 気管支喘息患者の肺高分解能CT所見に対する長期喫煙の影響を検討することを目的とした｡非喫煙喘息患者8名,喫煙歴を有する喘息患者6名を対象として,肺機能,肺平均CT値(MLD),-950HU以下のlow attenuation area(RA(950))について4年間の経過観察を行った｡ 4年間の観察中,非喫煙喘息患者では努力肺活量,1秒量の低下を認めた｡喫煙歴を有する喘息患者では努力肺活量,1秒量,1秒率,肺拡散能 の低下および残気率の増加を認めた｡喫煙歴を有する喘息患者では吸気において,上肺野MLDの有意の低下,RA(950)の有意の上昇を認めたが,非喫煙喘息患者では有意の変化は認めなかった｡中肺RA(950)は喫煙歴を有する喘息患者,非喫煙喘息患者ともに有意の上昇を認めた｡また,呼気において,喫煙歴を有する喘息患者でMLDの有意の低下,RA(950)の有意の上昇を認めたが,非喫煙喘息患者では有意の変化は認めなかった｡喘息患者において,加齢は主に中肺野のlow atenuation area,喫煙は上肺野のlow atenuation areaに影響を及ぼすことが示唆された｡

N-3 fatty acids are reportedly effective for asthma. In addition, spa therapy has been reported to be effective for patients with asthma. In the present study, the effects of spa therapy combined with perilla seed oil- rich diet (rich in n-3 fatty acid)were examined on asthma. A total of 14 asthmatic patients had a complex spa therapy and consumed a perilla seed oil- rich diet - rich in a -linolenic acid (alpha-LNA) for 8 weeks. Generation of leukotriene (LT) C4 by leucocytes, respiratory function were analyzed. The generation of LTC4 by leucocytes decreased significantly for 2, 4 and 8 weeks (P, N-3系脂肪酸は喘息に有効であることが報告されている｡また喘息に対する温泉療法の有効性も報告されている｡今回我々は温泉療法とn-3系脂肪酸を多く含むエゴマ油食の喘息に対する効果を検討した｡14名の喘息患者に温泉療法及びα-リノレン酸(n-3系)を多く含むエゴマ油食の摂取を8週間行い,その間の白血球ロイコトリエンC 4(LTC4)の産生能と呼吸機能の変化を検討した｡ その結果白血球LTC4の産生能は治療開始2過後より4,8過後と抑制された(P

The influence of aging on the pathophysiology of asthma in the elderly was examined in 40 patients (20 younger asthmatics under the age of 50 years, mean age 32.5 years and 20 elderly asthmatics over the age of 70 years, mean age 74.3 years), relating to IgE - mediated allergy, pulmonary function, low attenuation area (LAA) of the lungs on HRCT, and the generation of leukotrienes B4 (LTB4) and C4 (LTC4) by leukocytes. The frequency of patients with serum IgE of more than 200 IU/ml, and the incidence of those with a positive RAST score for inhalant allergens were significantly higher in younger patients than in elderly subjects. The values of % FVC, % FEV1 and FEV 1% were significantly larger in younger patients compared with elderly subjects. The % RV was significantly larger in elderly patients than in younger patients, however, the difference in % DLco was not significant between the two age groups. The LAA of the lungs on HRCT and the ratio of expiratory LAA (exp LAA) to inspiratory LAA (ins LAA) were also significantly larger in elderly asthmatics than in younger subjects. The generation of LTB4 and LTC4 was larger in younger patients than in elderly subjects, and LTB4 generation was significantly larger in younger subjects compared with elderly subjects. These results suggest that changes in IgE-mediated allergy, airflow and lung volume accompanied with hyperinflation are often observed in elderly asthmatics., 70歳以上の気管支喘息20例(平均年令74.3歳)および50歳以下の気管支喘息20例(32.5歳)を対象に,IgEにmediateされるアレルギー反応,肺機能,HRCT上の肺のLAAの程度,白血球によるLTB4,LTC4産生などに対する加齢の影響について検討した｡血清IgE値が200IU/ml以上の症例の頻度および吸入抗原に対するRAST scoreが陽性を示す症例の頻度は,いずれも若青年者喘息で高齢者喘息と比べ有意に高い傾向を示した｡ % FVC,% FEV(1),FEV(1) % 値はいずれも若青年者喘息で高 齢者喘息に比べ有意に高い値を示し,また,% RVは高齢者で有意に高い値が示された｡一方,% DLcoは両者間に有意の差は見られなかった｡ HRCT上の% LAAおよびLAA比(呼気/吸気)いずれも高齢者喘息で有意に高い値を示し,加齢により肺のLAAが明らかに影響を受けることが判明した｡LTC4の産生は若青年者喘息でやや高い値が示されたが,高齢者との間に有意差は見られなかった｡一方,LTB4産生は,若青年者喘息で高齢者喘息と比べ有意に高い値が示された｡これらの結果は,70歳以上の高齢者喘息では加齢による影響を広範囲にわたり受けている可能性が高いことを示している｡

The influence of cigarette smoking on the pathophysiology in elderly patients with asthma. Forty asthmatics over the age of 70 years (20 ex-smokers and 20 never-smokers), and 20 patients with pulmonary emphysema over age 70 (all ever-smokers) were studied to determine the influence of cigarette smoke on the low attenuation area (LAA), 70歳以上の気管支喘息40例(20例喫煙者,20例非喫煙者)および肺気腫20例を対象に,長期間喫煙のHRCT上の-950 HU以下の肺のlow atenuation area(LAA)に及ぼす影響について検討した。 HRCT上の肺の% LAAは,喘息の喫煙例で非喫煙例に比べ有意に高い値を示した｡また,この% LAAは,肺気腫症例で喘息の喫煙例に比べさらに高い値を示した｡LAA比(呼気時LAA/吸気時LAA)は,職息症例では喫煙例で非喫煙例比べ有意に高い値を示したが,肺気腫症例ではさらに高い値を示した｡LAA比0.5以上を示す症例は,喘息の非喫煙例では見られず,喫煙例で20例中10例,肺気腫症例では全例に見られた｡そして,喘息喫煙例でLAA比が0.5以上を示す症例は,0.5以下の症例に比べ,% RVは有意に高く,また% DLcoは有意に低い値を示した｡しかし,% RV,% DLco値いずれも喘息のLAA比0.5以上の症例と肺気腫の間には有意差は見られず,喘息における喫煙の影響の高いことが示唆された｡

The generation of leukotrienes B4 (LTB4) and C4 (LTC4) by leucocytes stimulated with Ca ionophore A23187 was examined in 67 patients with asthma. 1. The generation of leukotriene B4 (LTB4) by leucocytes was significantly more increased in patients with asthma than in those with pulmonary emphysema (PE) and healthy subjects. The generation of leukotriene C4 (LTC4) was also signficantly more increased in patients with asthma compared to the generation in those with PE and healthy subjects. The generation of both LTB4 and LTC4 was significantly more increased in patients with PE than in healthy subjects. 2. The generation of both LTB4 and LTC4 was larger in patients with asthma over age 70 than in those of other age groups, however, the difference was not significant. 3. The generation of LTC4 was significantly higher in attack stage than in non-attack stage in all age groups of patients with asthma, however, the generation of LTB4 was not significantly different between the two stages. 4. Bronchial hyperresponsiveness to methacholine in patients with asthma tended to decrease with aging, and the bronchial hyperresponsiveness was to a certain extent correlated with the generation of LTB4, but not LTC4. 5. The generation of LTC4 was correlated with value of FEV1.0%. These results may suggest that both LTB4 and LTC4 participate in the pathophysiology of asthma in the elderly., 気管支喘息67例を対象に, Ca ionophoreA23187刺激時の白血球からのロイコトリエンB4(LTB4)およびC4 (LTC4)の産生を観察し,高齢者喘息の臨床病態におけるLTB4,LTC4の役割について検討した｡ 1.LTB4の産生は,気管支喘息において肺気腫および健康人に比べ有意に高い値を示した｡LTC4の産生も同様に気管支喘息において,肺気腫,健康人に比べ有意に高い値30を示した｡LTB4,LTC4いずれの産生も,肺気腫症例において健康人と比べ有意に高い値が観察された。 2.LTB4,LTC4の産生は,70才以上の喘息症例において,他の年齢層の症例に比べより高い値が示されたが,推計学的な有意差は見られなかった｡ 3.高齢者を含めいずれの年齢層の気管支喘息においても,LTC4の産生は発作時に,非発作時に比べ有意の亢進が見られたが,LTB4に関しては発作時,非発作時の間に有意の差は見られなかった｡ 4.気道の過敏性は,年齢が高くなるにつれて低下する傾向が見られた｡そして,この気道の過敏性はLTB4産生とある程度関連していることが示されたが,LTC4との関連は見られなかった｡ 5.FEV1.0%値は,ある程度LTC4産生亢進と関連があることが示された｡ 以上の結果より,70才以上の喘息においても,LTB4,LTC4がその発作時病態に重要な役割を果していることが示唆された｡

Changes in the generation of leukotrienes B4 (LTB4) and C4 (LTC4) by leucocytes after spa therapy were examined in 30 patients with asthma. 1. The efficacy of spa therapy was marked in 8 (26.7%), and moderate in 16 (53.3%) of 30 patients with asthma, and slight or no efficacy of the therapy was observed in the residual 6 patients (20.0%). 2. Bronchial reactivity to methacholine was the highest in patients with slight or no efficacy of spa therapy, however. there were no significant differences among the three groups classified by clinical efficacy. 3. The generation of LTC4 was significantly higher in patients with slight or no efficacy compared with the generation in those with marked (p, 気管支喘息30例を対象に,温泉療法によるロイコトリエンB4 (LTB4),C4 (LTC4)産生の変動および気道過敏性と臨床効果との関連について検討を加えた｡ 1.温泉療法の臨床効果は,著効8例(26.7%),有効16例(53.3%),やや有 効あるいは無効6例(20.0%)であった｡ 2.メサコリンに対する気道過敏性は,やや有効あるいは無効例で高い傾向が見られたが,著効,有効例と比べ有意の差は見られなかった。 3.LTC4産生はやや有効あるいは無効例において著効例(P

The clinical significance of low attenuation area, 気管支喘息80例(全例非喫煙者)を対象に,high resolution computedt omography (HRCT)上の肺の-950HU以下のLow attenuation area (LAA)の臨床的意義について, 患者年齢, CT number,残気率(% RV),拡散能(% DLco)を含む肺機能検査,白血球のコイコトリエンB4,C4の産生能などとの関連のもとに検討を加えた｡ 1.% LAAは,年齢が高くなるにつれて増加する傾向を示し,60才以上の症例の% LAAは,49歳以下の症例に比べ有意に高い値を示した｡また,CT numberも,年齢が高くなるにつれて有意の増加を示した｡ 2.% FVC,% FEV1.0およびFEV1.0%値は,いずれも70才以上の症例で49歳以下の症例に比べ有意に低い値を示した｡ 3.残気率(% RV)は,年齢が高くなるにつれて増加する傾向を示し,70才以上の症例の% RVは,50-59才および49才以下の症例の% RVに比べ有意に高い値を示した｡ 4.一方,拡散能(% DLco)は,年齢が高くなるにつれて有意に低下する傾向を示し,70才以上の症例の% DLcoは,50-59才および49才以下の症例のDLcoに比べ有意に低い値を示した｡ 5.% LAAと% RVとの間には有意の相関が見られたが,% LAAと% DLco,および% LAAと換気機能(% FVC,% FEV1.0,FEV1.0%)との間には関連は見られなかった｡ 6.白血球のLTB4およびLTC4の産生能においては年齢による差は見られなかった｡これらの結果は,% LAAが年齢とともに増加すること,そして% LAAは% RVと密接な関連を有していることを示している｡

Effects of aging and glucocorticoid therapy on bronchoalveolar lavage (BAL) cells, particularly lymphocytes, neutrophils and eosinophils, were examined in 81 patients with asthma. 1. The proportion of BAL lymphocytes tended to increase with aging in asthmatics under age 69 years, and the proportion was significantly higher in patients with asthma between the ages of 60 and 69 than in those under age 39 and between the ages of 40 and 49. 2. The proportions of BAL neutrophils and eosinophils were not related to aging. 3. The proportion of BAL lymphocytes was higher in patients without glucocorticoid therapy than in those with steroid-dependent intractable asthma (SOIA) in those under age 69 years. In patients between the ages of 50 and 59, the proportion of BAL lymphocytes was significantly higher in patients without glucocorticoids than in those with SOIA. 4. The proportion of BAL neutrophils was higher in patients without glucocorticoid therapy than in those with SOIA, and the difference was significant in patients between the ages of 60 and 69. 5. The proportion of BAL eosinophils was not related to glucocorticoid therapy. These results suggest that the proportion of BAL lymphocytes and neutrophils is affected by aging and glucocorticoid therapy, but not BAL eosinophils., 気管支喘息81例を対象に,気管支肺胞洗浄(BAL)液中の細胞成分,特にリンパ球,好中球および好酸球に対する加齢および副腎皮質ホルモ ンの影響について検討を加えた｡ 1.BAL液中のリンパ球頻度は,69才以下の症例では加齢とともに増加する傾向を示し,60-69才の年齢層では,39才以下および40-49才の年齢層の症例に比べ有意に高い値を示した｡ 2.BAL液中の好中球および好酸球頻度と加齢との間には関連が見られなかった｡ 3.BAL液中のリンパ球頻度は,69才以下の症例では,ステロイド依存性重症難治性喘息(SDIA)に比べ,ステロイド非使用例で有意に高い値を示し,50-59才の年齢層ではその差は有意であった｡ 4.BAL液中好中球頻度は,ステロイド非使用例に比べSDIA症例において高い値を示し,60-69才の年齢層ではその差は有意であった｡ 5.BAL液中好酸球頻度は,ステロイド使用の有無との関連は見られなかった｡これらの結果は,BAL液中リンパ球および好中球頻度は加齢や副腎皮質ホルモン投与の影響を受けるが,BAL液中好酸球額度には影響しないことを示唆している｡

The purpose of this study is to establish a new, non - invasive diagnostic technique for peripheral circulation in patients with diabetes mellitus in the early stage of arteriosclerosis obliterans (ASO) as one of the complications of diabetes mellitus. We observed peripheral circulation quantitatively by thermography and Laser- Doppler blood flowmetry. The body surface peripheral circulation in 27 patients with diabetes mellitus, including 14 males and 13 females with a mean age of 67.4 years (range from 51-82 years), and with a mean hemoglobin A1C (HbA1C) 019.5% (range from 6.8%-13.0%), and who were suffering coldness, numbness or pain in their feet, was examined using thermography and Laser- Doppler blood flowmetry. Thermographic results were analyzed quantitatively by calculating a recovery ratio as : Recovery ratio= [Total counts of thermography (Pixels) over temperature (T) after cold -loading] + [Initial counts over T after hot-loading] Xl00 (%). Results of recovery ratios for 27 cases were 0% - 93.5%, and the average was 34.0%. At the same time, the blood flow after cold -loading was 0.91 - 5. 36ml/min/lOOg tissue and the average was 2.04ml/min/l00g tissue. We found that the recovery ratio and the blood flow were correlated (r=O. 634, p, 糖尿病患者における閉塞性動脈硬化症の合併を早期に診断,予知,予防する目的で末梢循環障害の程度を非侵襲的にかつ客観的に測定することを試みた｡非侵襲的測定方法としてサーモグラフィーとレ-ザードップラー血流計を同時に用い,得られた結果を数量化した｡症例は,下肢に冷え症,しびれ感,下肢痛を有した51歳から82歳までの 27症例(平均年齢67.4歳)であった｡性別は,男性14例,女性13例,HbA1Cは6.8%-13.0%,辛均9.5%であった｡サーモグラフィーで得られた結果は回復率として数量化して表示された｡回復率の算出方法は回復率-【20℃冷水負荷後の27℃以上の体表面温度のサーモグラフィーの画素(pixel)の総数】÷【36℃の温水負荷後の27℃以上の体表面温度のサーモグラフィーのPixelの総数】×100%で求めた｡ サ-モグラフィーにより測定された回復率は0%-93.5%の範囲にあった｡平均は34.0%であった｡レーザードップラー血流計により20℃冷水負荷後に測定された血流量は0.91-5.36ml/min/100g tissueの範囲にあった｡平均は2.04mi/min/100g tissueであった｡得られたサーモグラフィーの回復率とレ-ザードップラ-血流計の血流量との間には正の相関関係を認めた(p

Dietary sources of a -linolenic acid, such as perilla seed oil, may have the capacity to inhibit the generation of leukotrienes (LTs) by leucocytes in patients with asthma, as has been reported with the consumption of other long - chain n- 3 fatty a-cids. The factors affecting the suppression of leukotriene (LT) C4 generation by leucocytes were examined by comparing the clinical features of patients with asthma who had been given dietary perilla seed oil (n - 3 fatty acids). Group A consisted of patients in whom the leucocyte generation of dietary perilla seed oil LTC4 was suppressed by this procedure. Group B consisted of those in whom LTC4 generation was not suppressed. LTC4 generation by leucocytes significantly decreased in group A for two (P, エゴマ油のようなα-リノレン酸食が他のn-3系不飽和脂肪酸食において報告されてきた様に喘息患者の白血球ロイコトリエン(LTs)産生能を抑制すると考えられる｡そこでエゴマ油(n-3系脂肪酸)を摂取した気管支喘息患者の臨床所見を比較することによって白血球ロイコトリエン(LT)C4の抑制に影響する因子を検討した。A群はエゴマ油摂取により白血球LTC4の産生能が抑制された群であり､B群は白血球LTC4の産生能が抑制されなかった群である｡A群では食事摂取2週後(P

The influence of smoking on pulmonary function and emphysematous changes of the lung (percentage of attenuation area < -950 HU (% LAA) on high resolution computed tomography (HRCT) was examined in 49 patients with bronchial asthma. 1. In patients with asthma, the % residual volume (RV) in many nonsmokers was less than 129%, in contrast, the % RV in many smokers was between 130% and 189% , which was higher than that in nonsmokers. 2. Significant correlations between % RV and 96LAA value, and between % RV and CT number were observed both in nonsmokers and smokers with asthma, in which as % RV more increased, % LAA value was larger, and CT number was lower. 3. % DLco value was lower in smoking patients with asthma, whose % RV was between 130% and 189% and larger than 190% , however, the % DLco value did not change in nonsmoking patients despite of higher valure in % RV. 4. A significant correlation was also observed between % FEV1.0 value and % RV both in smoking and nonsmoking patients with asthma; as % RV value more increased, % FEV1.0 value was lower. 5. Any correlation between % FVC value and % RV was not observed. These results suggest that smoking affects the % LAA of the lung on HRCT and % DLco in patients with asthma., 気管支喘息49例を対象に､肺機能およびHigh resolution computed tomography(HRCT)上のLow attenuation are (LAA)

Clinical effects of spa therapy were examined in 150 patients with asthma in relation tobronchial hyperresponsiveness and patient age. 1. The efficacy rate of spa therapy was larger as the patient age was higher: the rate was 73.3% in patients under age 49, 81.8% in those between the ages of 50 and 59, 86.4% in those between the ages of 60 and 69, and 90.6% in those over age 70. The mean of efficacy rates was 83.3% in all subjects. 2. The bronchial hyperresponsiveness (BH) was lower as patient age was higher: the BH in patients between the ages of 60 and 69 and in those over age 70 was significantly lower compared to the BH in those under age 49 (p < O.OOl). 3. Clinical effects of spa therapy tended to be lower in patients with increased bronchial hyperresponsiveness. The bronchial hyperresponsiveness showed a tendency to decrease after spa therapy in whom the therapy was effective, however, the BH did not change in patients with slight or no efficacy during spa therapy., 1.温泉療法では,年齢が高くなるほどその有効率も高くなると言う傾向が見られ､49才以下の症例では73.3% ,50-59才の症例では81.8% , 60-69才の症例では86.4% ,70才以上では90.6% であり,全症例の平均有効率は73.3% であった｡ 2.気道過敏性は,年齢が高くなるほど低下する傾向が見られ,60-69才および70才以上の症例の気道過敏性は,49才以下の症例と比べ有 意に低い値を示した(P < 0.001)。 3.温泉療法の臨床効果は,気道過敏性が強くなるにつれて低下する傾向が見られた｡また,温泉療法の著効例や有効例では,治療により 気道過敏性が低下してくるが､やや有効例や無効例では,気道過敏性はほとんど変化しないことが示された｡

The correlation between the efficacy of 4-weeks administration with pranlukast, leukotriene receptor antagonist, and LTs generation by peripheral leukocytes were evaluated in 18 patients with mild-persistent asthma. The efficacy of pranlukast administration was assessed by symptom, morning PEF and pulmonary function. Pranlukast were effective in 12/18(67%) patients. In those patients, LTC4 generation before pranlukast administration was significantly high, compared with that in pranlukast-ineffective patients. LTC4 generation decreased after 4-weeks administration with pranlukast in effective patients. In ineffective patients, however, LTC4 generation increased after 4-weeks administration. LTB4 had shown no significant difference between effective and ineffective patients before administration, and LTB4 decreased after 4-weeks in both groups. Proport ion of peripheral eosinophi Is in effective patients were higher than that in ineffective patients, however not significant. After 4-weeks, proportion of eosinophi Is was decreased in effective patients and increased in ineffective patients. These findings suggest that pranlukast is effective for patients with high LTC4 generation and has the effect to suppress the accumulation of eosinophils in such patients., 軽症気管支喘息18例にロイコトリエン受容体桔抗薬プランルカストを4週間投与し，その効果と末梢血白血球からのLTC4，LTB4産生能の関係を検討した．プランルカストの効果は臨床症状，起床時ピークフロー値，肺機能の変化によって判定し，効果群，非効果群の2群に分類した．18例中12例（67％）の症例がプランルカスト投与により，臨床症状の軽減，ピークフロー値の増加，肺機能の改善が認められた．効果群におけるプランルカスト投与前のLTC4値は，非効果群のLTC4値に比較して有意に高値であった．4週間の投与後には 効果群ではLTC4値は減少し，非効果群では増加した．両群のLTB4値はプランルカスト投与前で有意な差は認められず，投与後には両群で減少した．投与前の好酸球分画は，効果群において非効果群に比べ高値であったが，有意な差は認められなかった．4週間の投与後，効果群においては好酸球は減少し，非効果群においては増加した．以上の結果より，プランルカストは末梢血白血球のLTC4産生能が高い症例において効果的であり，好酸球集積を抑制する作用を有すると考えられる．

In a previous study, we demonstrated that chronic administration of systemic glucocorticoids decreases cortical bone mineral density (BMD) and induces development of pathologic fractures in asthmatic patients. To investigate cortical bone porosity due to glucocorticoids, we studied cortical bone volume, BMD, bone strength, and fractures in patients with asthma in this report. A total of 82 postmenopausal asthmatic patients were enrolled in the study. Vertebral fractures were diagnosed via plain spinal radiograms. Peripheral quantitative computed tomography (pQCT) was used to measure cortical BMD, relative cortical volume, and Strength Strain Index (SSI). Multiple regression analysis, Student's t test, and other statistical analyses were performed. Patients with systemic glucocorticoids therapy had lower cortical BMD, relative cortical volume, SSI, and more number of vertebral fractures than patients without it. Lifetime cumulative dose of glucocorticoids was related to cortical BMD, relative cortical volume, SSI, and the number of vertebral fractures. The cortical volumedensity relationship appeared to remain constant regardless of systemic glucocorticoid administration. The number of vertebral fractures correlated highly with cortical BMD, relative cortical volume, and SSI at the radius. In conclusion, systemic glucocorticoid administration decreases cortical bone density, cortical bone volume, and bone strength. G lucocorticoid administration appears to be responsible for the process of cortical bone porosity at both endosteal and intracortical sites. Given that both cortical bone density and volume provide bone strength, cortical bone porosity was seen to contribute to glucocorticoid - induced bone strength loss and fractures., 【目的】骨強度には皮質骨の状態が主に関与するため，全身ステロイド療法に伴う病的骨折と皮質骨障害について検討した。【方法】閉経後女性気管支喘息患者82例で，ステロイド依存性群と非依 存群において，椎体骨折数，槙骨皮質骨骨密度，皮質骨容量，骨強度（SSI）をⅩ線側面像とpQCTを用いて検討した。 【結果】ステロイド依存群はステロイド非依存群に比べて，椎体圧迫骨折数は有意に多く，榛骨皮質骨骨密度，皮質骨容積比，骨強度は各々有意に低下していた。また，皮質骨骨密度と容積は一定の割合で減少していた。椎体圧迫骨折数は皮質骨骨密度，皮質骨容積比，骨強度の全てと高い相関を認めた。 【結論】ステロイド依存性気管支暗息症例においては，皮質骨の骨 密度と容量が同時に減少して骨強度が減少することによって，病的骨折が発症すると考えられた。

N-3 fatty acids have been reported to be effective for asthma. In the present study, the effects of perilla seed oil (n-3 fatty acids) on asthma were compared with the effects of corn oil (n-6 fatty acids) in terms of pulmonary function, lipometabolism and the generation of leukotriene C4 (LTC4) by leucocytes. A total of 28 asthmatic patients were randomly divided into two groups : Group A patients (15 subjects) consumed perilla seed oil-rich supplementation, while Group B patients (13 subjects) consumed corn oil-rich supplementation for 4 weeks. Generation of LTC4 by leucocytes, respiratory function and the serum levels of lipids were compared between the two groups. The generation of LTC4 by leucocytes decreased significantly in Group A subjects following perilla seed oil-rich supplementation for 2(P < 0.05) and 4 weeks(P < 0.01). A significant difference in the generation of LTC4 was observed between the two groups after different dietary supplementations for 4 weeks (P < 0.05). Significantly increased values for PEF (P < 0.01), FVC (P < 0.05) and FEV1.0 (P < 0.05) were found in Group A subjects following perilla seed oil supplementation for 4 weeks, compared with the initial value prior to supplementation. A significant decrease in the serum level of total cholesterol, LDL-cholesterol and phospholipid was detected in Group A subjects following perilla seed oil supplementation for 4 weeks. The present results suggest that peril la seed oil-rich supplementation is effective in the treatment of asthma in terms of its ability to suppress LTC4 generat ion by leucocytes, and in inducing an improvement in pulmonary function associated with changes in the serum level of lipids., n－3系脂肪酸は喘息に有効であることが報告されている。今回、エゴマ油（n－3系脂肪酸）の喘息に対する効果を呼吸機能、イコトリエンC4（LTC4）産生能の観点から、コーン油（n－6系脂肪酸）のそれと比較した。28例の喘息患者を無作為に2群に分け、A群（15例） はエゴマ油食を、B群（13例）はコーン油食をそれぞれ4週間摂取した。白血球LTC4産生能、呼吸機能、血清脂質を2群間で比較した。白血球LTC4産生能はエゴマ抽食を摂取したA群で2週後（P < 0．05）、4過後（P < 0．01）に有意に低下した。食事摂取4過後に岳群間でLTC4産生能に有意差が認められた（P < 0．05）。エゴマ油食を4過摂取したA群ではピークフロー（P < 0．05）、肺活量（P < 0.01）、1秒量（P < 0．05）が食事摂取前に比し、有意に増加した。またA群ではエゴマ坤食摂取4週後に血清総コレステロール値、LDL－コレステロール値、リン脂質の有意な低下がみられた。こ れらの結果より、エゴマ油食は白血球LTC4産生能を抑制することにより、呼吸機能を改善し、血清脂質の変化と関連して、喘息の治療に有効であることが示唆された。

Background: Assessment of low attenuation areas and lung densitometry on high resolution computed tomography (HRCT) have been reported in studies of patients with chronic obstructive pulmonary disease. Objective : The purpose of this study was to examine if HRCT could separate asthmatic patients from normal control subjects and patients with emphysema. Methods : Subjects were divided into three groups : 24 patients with bronchial asthma, 23 patients with pulmonary emphysema and 15 normal controls. HRCT scans of the lung were performed at three different levels at both end inspiration and expiration in all patients and control subjects. Results : The mean CT number of three slices was significantly lower in asthmatic subjects compared with normal individuals at both end inspiration (p < 0.05) and expiration (p < 0.01). The relative area of the lung with an attenuation value lower than -950 HU (% LAA) for three slices was significantly higher in asthmatic subjects than in normal individuals at end inspiration (p < 0.05), but there was no significant difference at end expiration. The mean CT number and % LAA obtained from studies that were performed at three cm above the top of the diaphragm provided the best separation among three anatomic levels. In comparison between asthmatic and emphysema patients, both parameters were significantly different in asthmatic subjects than in those with emphysema at both end inspiration and expiration on each scan and in the total scans (p < 0.001). Conclusions : HRCT is a useful method to separate asthmatic subjects from patients with emphysema and normal subjects., 【目的】肺野low attenuation area（LAA）は、慢性閉塞性肺疾患（COPD）における肺気腫の存在ならびに程度を反映することが知られている。そこで喘息患者におけるLAAの意義を明らかにすることを目的として、COPD患者、コントロールとの比較検討を行った。 【対象と方法】喘息症例24例、COPD症例23例、コントロール15例を対象として、上・中・下肺野の3スライスで深吸気、深呼気時において胸部高分解能CT（HRCT）を施行し3群間で比較検討を行った。CTパラメーターとしては、平均m値、肺野面積に対する－950HU以下のLAAの割合（% LAA）を採用した。 【結果】1．3スライスの平均CT値は、吸気および呼気とも3群間での有意の差が認められた。2．3スライスの% LAAは、吸気では3群間での有意の差が認められたが、呼気では喘息とコントロール間での有意の差は認められなかった。3．COPD症例では、吸気、呼気ともに平均CT値は他の2群より有意に低値を示し、% LAAは他の2群よりより有意に高値を示した。4．3群間の平均CT値と% LAAの相違は下肺野のスライスで最も顕著であった。 【考案】平均CT値および% LAAは、喘息、COPD、コントロールにおいて有意に異なっており、喘息およぴCOPDの病態を反映する可能性が示唆された。

The generation. of leukotrienes 84 (LT84) and C4 (LTC4) by leucocytes stimulated with Ca ionophore A23187 was examined in 71 patients with asthma (42 with atopic and 29 with nonatopic asthma) and 23 healthy controls. Of these patients,22 had SDIA (steroid-dependent intractable asthma). 1. The generation of LT84 and LTC4 by leucocytes was significantly more enhanced in patients with atopic, non-SOIA asthma than in healthy subjects, but not in patients with nonatopic asthma. The generation of LT84 and LTC4 in atopic asthma was significantly more decreased in patients with SOIA than in those with non-SOIA. 2. The LTC4 generation was significantly larger in attack stage than in attack-free stage of patients with atopic and nonatopic asthma when they had not SOIA. However, no significant difference was found in LT84 generation between attack and nonattack stages in these patients. 3. In patients with SOIA, no significant differences were observed in the generation of LT84 and LTC4 between attack and nonattack stages. The results suggest that IgE-mediated allergy and asthma attacks enhance and glucocorticoids inhibit the generation of LT84 and LTC4 by leucocytes., 気管支喘息71例および健康人23名を対象に､Ca ionophore A23187刺激時の末梢血白血球のロイコトリエンB4 (LTB4)およびC4(LTC4)の産生能について検討を加えた｡なお､71例中ステロイド依存性重症難治性喘息(SDIA)は22例であった。1.アトピー性､16非SDIA症例におけるLTB4､LTC4産生は､健康人と比べ有意に高い値を示したが､非アトピー性喘息では健康人との間に有意の差は見られなかった｡また､アトピー性喘息では､SDIA症例において非SDIA症例に比べ､LTB4､LTC4産生が有意に抑制されていた｡2.非SDIA症例では､アトピー性､非アトピー性を問わず､LTC4産生は､非発作時に比べ発作時に有意に亢進した状態であった｡しかし､LTB4産生には､非発作時､発作時との間に有意の差は見られなかった｡3.SDIA症例では､LTB4､LTC4産生と発作との有意の関連は見られなかった｡以上の結果より､IgE にmediateされるアレルギー反応や喘息発作はLTB4､LTC4産生に促進的に､また副腎皮質ホルモンは抑制的に作用することが示唆された｡

The purpose of this study was to examine the potential role of magnetic resonance imaging (MRI) in the evaluation of low back pain (LBP). The study group, 19 patients with low back pain (2 subjects aged 32-39 years and 17 aged 59-78), underwent MRI of the lumbar spine. Disc degeneration at L4/5 was the most common finding (68.4%). Overall in present study, all patients with LBP had abnormalities around the lumbar spine (evidence of disc degeneration, deformity of lumbar spine, disc bulging or protrusion, facet hypertrophy, nerve root compression and so on)., この研究の目的は腰痛評価におけるMRIの役割を検討することであった｡対象は腰痛を訴え腰椎MRIを受けた19名(32歳から39歳2名,59歳から78歳17名)であった｡椎間板変成はL4/5levelで最も多く認められた(68.4%)｡本研究において腰痛を有する全患者に腰椎の異常(椎間板変性,disc bulging, protrusion, facet hypertrophy,神経根圧迫,腰椎変形など)を認めた｡

The significance of the low attenuation area (LAA) of the lungs on high resolution computed tomography (HRCT) has not been determined in patients with asthma. We examined the relationship between the percentage of lung area with CT numbers lower than -950HU (% LAA) and the mean CT number in 81 patients with reversible airway obstruction (asthma) and in 22 healthy subjects, as well as the relationship between maximal % LAA and various parameters of pulmonary function, smoking history, disease severity and allergic type in the asthmatic subjects. The mean CT number was obtained by scans at three anatomic levels, and maximal % LAA was the % LAA which had the largest value of those measured at the three anatomic levels of the lung. We found that: 1. The mean CT number was closely related to the maximal % LAA of the lungs in all subjects studied (r= -0.916, p, 【目的】気管支喘息症例において胸部HRCTを用いて% LAA(Lowattenuationarea)を評価し,臨床病態との関連を検討する｡ 【対象と方法】気管支喘息症例81例ならびに健常者22例を対象とした｡大動脈弓部,下葉分岐部,横隔膜上3cmの3スライスを撮影し,胸部CT値の演算によりCT値が-950HU以下の% LAA,さらに3スライス中の最大% LAAと3スライスの平均CT値を算出した｡その値と年齢,発症年齢,罹病期間,性別,喫煙歴,重症度,病型,肺機能との関連を検討した｡【結果】1.最大% LAAは平均CT値と強い相関を示した(r=-0.916,p

Dietary supplementation with perilla seed oil, a vegetable oil rich in α -lin- olenic acid, inhibits the generation of leukotrienes(LTs) by leucocytes in patients with bronchial asthma. We examined the factors that affect the suppression of LT generation by leucocytes with perilla seed oil-rich supplementation in patients with asthma, by comparing the clinical features of patients with asthma, whose generation of leukotriene (LT) C4 was suppressed by dietary supplementation with perilla seed oil (n-3 fatty acids) (group A), with those of patients who showed no suppression of LTC4 generation (group B). Group A showed a significant increase in the generation of LTB4 and L TC4 by leucocytes after corn oil-rich supplementation (n-6 fatty acids), and a significant decrease in the generation of LTB4 and LTC4 after perilla seed oil-rich supplementation (n-3 fatty acid). However, this was not observed in group B. The level of serum IgE and peak expiratory flow (PEF) in group A were significantly higher than in group B. Furthermore, the serum levels of LDL-cholesterol, β-lipoprotein and phospholipid were significantly lower in group A than in group B. These results suggest that the clinical features differ between these two asthmatic populations with respect to suppression of LTB4 and LTC4 generation by n-3 fatty acids in perilla seed oil-rich supplementation., a-リノレン酸の豊富なエゴマ油の食事は気管支喘息患者の白血球ロイコトリエン(LT)産生能を抑制する｡気管支喘息患者の内,エゴマ油食によりLTC4の産生が抑制された群(A群)と抑制されない群(B群)の臨床データを比較することにより,気管支喘息患者の白血球ロイコトリエン産生能に影響する因子を検討した｡A群はコーン油(n-6系脂肪酸)の豊富な食事後,白血LTB4,LTC4の産生能が増加し,エゴマ油(n-3系脂肪酸)の豊富な食事後LTB4,LTC4の産生能が減少した｡これらの変化はB群では認められなかった｡A群のIgE値,ピークフロー(PEF)値はB群に比し,有意に高値であった｡またLDL-コレステロール,β-リポ蛋白,リン脂質はA群ではB群に比し,有意に低値であった｡これらの結果はエゴマ油の豊富な食事のn-3系脂肪酸によるLTB4,LTC4の産生能の抑制に関して2群の気管支喘息患者群間に臨床データの相違があることを示唆している｡

In previous studies, we have demonstrated that chronic administration of systemic glucocorticoids decreases cortical bone mineral density (BMD), cortical bone volume, bone strength, and induces development of pathologic fractures in asthmatic patients. We have also demonstrated that glucocorticoid administration appears to be responsible for the process of cortical bone porosity at both endosteal and intracortical sites in postmenopausal asthmatic patients. There is a difference of gonadal hormones between male and female. To investigate the influence of hormonal difference on glucocorticoid-induced cortical bone porosity, we studied cortical bone volume and BMD in both male and female patients with asthma in this report. A total of 99 asthmatic patients (male 26 cases, female 73 cases) were enrolled in the study. Peripheral quantitative computed tomography (pQCT) was used to measure cortical BMD and relative cortical volume. The cortical volume-density relationship appeared to remain constant regardless of the level of systemic glucocorticoid administration, age or sex, suggesting cortical bone porosity causes similar and simultaneous decreases in cortical bone volume and density. In conclusion, glucocorticoid administration appears to be responsible for the process of cortical bone porosity at both endosteal and intracortical sites despite the gonadal hormonal differences., 【目的】これまでに我々は,気管支喘息症例において経口ステロイドによる皮質骨骨密度,容積の減少が骨折に関与する新知見を報告し,閉経後女性では皮質骨骨密度一容積の減少はステロイド投与量にかかわらず一定であることを報告してきた｡この皮質骨骨密度-容積の関係において性差による違いを検討するために,男性,女性患者の両方について検討を行った｡【方法】対象はステロイド依存性喘息99例(男性26例,女性73例)｡性別,年齢,経口ステロイド積算総投与量により6群に分類した｡椎体圧迫骨折はⅩ線側面像にて評価 し,皮質骨容積比および皮質骨骨密度はpQCT(Stratec XCT960)を用いて測定した｡それぞれの群の皮質骨骨密度-容積比の関係を算出し比較検定をおこなった｡【結果】それぞれの群の皮質骨の骨密度と容積比は有意に相関した｡それぞれの群の皮質骨骨密度-容積比の傾きは,いずれも有意差を認めなかった｡【結論】気管支喘息症例におけるステロイド投与による皮質骨の骨密度と容積の減少は,性別にかかわらずほぼ一定で,皮質骨は内側と外側において同様に海綿化してゆくと考えられた｡

Pathological changes of nasosinus occur often in subjects with bronchial asthma. Coexisting nasosinus lesion may affect pathophysiology of lower respiratory tract in asthmatics. The extent of nasal and sinus lesion was quantified in 17 patients with bronchial asthma, and their relationships to atopic status, asthma severity and bronchial hyperresponsiveness were evaluated in this study. Opacification degree of maxillary sinuses and nasal mucosa thickening were quantified using CT scans. The opacification degree was evaluated as (total opacification area)/(total maxillary sinus area). Although the opacification degree of maxillary sinuses in atopic patients showed no significant difference compared with that in non-atopic patients, maximum nasal mucosa thickening in atopic patients had a significant difference compared with that in non-atopic patients (p=0.028). In severe asthmatics, the opacification degree of maxillary sinuses was significantly more prominent compared with those in moderate and mild asthmatics (p=0.0005, p=0.036, respectively). Significantly marked nasal mucosa thickening was recognized in mild asthmatics compared with that in moderate asthmatics (p=0.0462). Regarding bronchial hyperresponsiveness, a significant correlation between Dmin and the opacification degree of maxillary sinuses was observed (rs= -0.551, p=0.0276). Nasal mucosa thickening had no correlation with bronchial hyperresponsiveness. The results suggest that sinusitis may affect bronchial hyperresponsiveness and asthma severity. Treatment of sinusitis may lead to improvement of asthma symptoms., 鼻腔･副鼻腔疾患はしばしば気管支喘息症例に合併が認められ,喘息症例の下気道病態に影響を及ぼしている可能性が考えられる｡今回,気管支喘息17例において,CTを用いて上顎洞の不透明化率･鼻腔粘膜肥厚を計測し,アトピー性の有無,喘息の重症度,気道過敏性との関係を検討した｡上顎洞不透明化率は全上顎洞面積の総計に対する不透明化領域面積総計として計算を行った｡上顎洞不透明化率はアトピー性の有無で差は認められなかったが,鼻腔粘膜はアトピー性喘息症例で有意に肥厚していた｡重症気管支喘息における上顎 洞不透明化率は,中等症および軽症喘息症例に比べ有意に高値であった｡鼻腔粘膜肥厚は中等症喘息症例に比べ,軽症症例で有意に肥厚していた｡気道過敏性(Dmin)は上顎洞不透明化率とのあいだに弱い負の相関が認められた(rs=-0.551,p=0.0276).鼻粘膜肥厚と気道過敏性は相関が認められなかった｡今回の結果から副鼻腔病変が気道過敏性･喘息重症度に影響を及ぼしている可能性が考えられ.副鼻腔疾患の治療により喘息症状の改善に繋がる可能性が考えられた。

The body surface peripheral circulation in 12 cases, including 9 patients with diabetes mellitus who were suffering coldness, numbness or pain in their feet, and 3 healthy volunteers was examined using Laser-Doppler blood flowmetry. At the same time, the body surface temperature was estimated by thermography. Thermographic results were analyzed quantitatively by calculating a recovery ratio as : Recovery ratio = [Total counts of thermography(Pixels) over temperature (T) after cold loading] ÷ [Initial counts over T before cold loading] x 100(%). The recovery ratio and the blood flow were correlated, r=0.68, p, 末梢神経障害を有する糖尿病患者の末梢循環障害の程度を数量的に検討する目的で､下肢に冷感ならびにしびれ感または疼痛を訴える糖尿病患者9症例と健常ボランティア3例の計12例(平均年齢59歳)についてサーモグラフィーを用いて体表面温度を測定した｡更に,サーモグラフィーで得られた結果と末梢皮膚血流量をレーザードプラー血流計を用いて測定して得られた結果と比較した｡サーモグラフィーによる測定で得られた結果は回復率として数量化して表示された｡回復率の算出方法は回復率= [冷水負荷後の特定温度27℃以 上の体表面温度のサーモグラフィーのPixelの総数]÷ [冷水負荷前の特定温度27℃以上の体表面温度のサーモグラフィーのPixelの総数]×100%で求めた｡レーザードプラ-血流計を用いて測定して得られた末梢血流量は左右それぞれ5カ所,計10カ所の測定値の平均で表示した｡その結果,末梢皮膚温度の回復率と末梢皮膚の血流量との問には正の相関関係(r=0.68,p