本学新入生のライフスタイルと健康感に関する研究(第5報)

本稿では、好ましいライフスタイル確立に資する早期健康教育のあり方を模索すべく、日常の健康生活習慣の実践状況と心身の自覚症状や自覚的健康感の関連を検討した。その結果は、以下のように約言される。1)女性は、男性より健康生活習慣実践指標(以下HPI: Health Practice Index)総得点が高く、自覚症状得点が低い。2)HPI各項目の実施群、非実施群の間で、自覚症状得点に有意な差がみられた項目は、男性では「栄養のバランス」、「拘束時間」が、女性では「適正飲酒」であった。また、男女ともに有意な差が見られた項目は、「朝食摂取」、「自覚的ストレス」であった。3)自覚症状で、男性の有訴率が有意に高い項目は「生活に張り合いを感じない」、「自分が他人より劣っていると思えて仕方がない」、「横になりたいぐらい勉強・アルバイト中に疲れる」、「全身の力が抜けたようになることがある」、「自分の健康の事が心配で仕方がない」、「何かでスパーっとうさばらしをしたい」が、女性の有訴率が有意に高い項目は「肩が凝る」、「便秘をする」であった。4)自覚的健康感を目的変数、HPI各項目を説明変数として多変量ロジスティックモデルを構築し、ステップワイズ法によって変数選択したところ、男性では「栄養のバランス」、「自覚的ストレス」が、女性では「適正睡眠」の項目が独立性の高い変数として検出された。5)HPI実践群と比較して、非実践群の自覚症状得点が高くなると同時に自覚的健康感が低くなる傾向が認められた。以上の結果から、HPIの実践が、自覚症状有訴率の低下および自覚的健康感の向上を図るうえで有効な要因の1つであることが示唆された。また、男性では精神的自覚症状の有訴率が高く、女性では身体的自覚症状の有訴率が高いことから、早期健康教育を実施する際には、性別に配慮したプログラムを用意することの重要性が示唆された。We investigated the relationships between the life styles and subjective symptoms in 560 freshman of Health Sciences Univeesity of Hokkaido. The results indicated the following. 1) Practice of HPI produced a fall of the rates of subjective symptoms and improvement of self-assessed health status. 2) Many male students complained mental subjective symptoms, while many female students complained physical subjective symptoms. Accordingly preparing for the program that considered sex is important in early stage health education

The eCura system as a novel indicator for the necessity of salvage surgery after non-curative ESD for gastric cancer: A case-control study.

Endoscopic submucosal dissection (ESD) for early gastric cancer does not always lead to complete cancer resection. The aim of this study was to determine indicators for cancer residue (CR) status in cases of non-curative ESD. We analyzed 47 cases of non-curative ESD followed by salvage surgery and collected data regarding the rates of CR, which included both local CR and lymph node metastasis (LNM). To elucidate the risk factors for CR status, we compared the CR positive and the CR negative groups among surgical specimens according to the following variables obtained from ESD findings: tumor location, tumor size, depth of invasion, lympho-vascular invasion, histological margin, and histological diagnosis. The eCura system, which is an LNM risk scoring system, was also applied and scores were calculated in each case as follows: 3 points for lymphatic invasion and 1 point each for tumor size >30 mm, positive vertical margin, venous invasion, and submucosal invasion ≥500 μm. There were 9 (19%) CR positive cases, which included 6 cases of local CR and 4 cases of LNM; no cancer was detected in over 80% of the patients. The eCura scoring system was the only significant factor for CR status: the higher the eCura score, the greater the CR positivity (p = 0.0128). In particular, all patients in the low-risk group (score = 0-1 point) had no CR. Although no cancer recurrence was observed during a median follow-up of 4 years, 2 patients died of pneumonia. In conclusion, the eCura system might make it possible to select appropriate cases for salvage surgery

Accuracy of Preoperative Endoscopy in Determining Tumor Location Required for Surgical Planning for Esophagogastric Junction Cancer

Purpose: The surgical strategy for esophagogastric junction (EGJ) cancer depends on the tumor location as measured relative to the EGJ line. The purpose of this study was to clarify the accuracy of diagnostic endoscopy in different clinicopathological backgrounds. Methods: Subjects were 74 consecutive patients with abdominal esophagus to upper gastric cancer who underwent surgical resection. Image-enhanced endoscopy with narrow-band imaging (NBI) was used to determine the EGJ line, prioritizing the presence of palisade vessels, followed by the upper end of gastric folds, as a landmark. The relative positional relationship between the tumor epicenter and the EGJ line was classified into six categories, and the agreement between endoscopic and pathologic diagnoses was examined to evaluate prediction accuracy. Results: The concordance rate of 69 eligible cases was 87% with a kappa coefficient (K) of 0.81. The palisade vessels were observed in 62/69 patients (89.9%). Of the 37 pathological EGJ cancers centered within 2 cm above and below the EGJ line, Barrett’s esophagus was found to be a significant risk factor for discordance (risk ratio, 4.40; p = 0.042); the concordance rate of 60% (K = 0.50) in the Barrett’s esophagus group was lower than the rate of 91% (K = 0.84) in the non-Barrett’s esophagus group. In five of six discordant cases, the EGJ line was estimated to be proximal to the actual line. Conclusion: Diagnostic endoscopy is beneficial for estimating the location of EGJ cancer, with a risk of underestimating esophageal invasion length in patients with Barrett’s esophagus

Fourth mRNA vaccination increases cross-neutralizing antibody titers against SARS-CoV-2 variants, including BQ.1.1 and XBB, in a very elderly population

Background: Omicron variants with immune evasion have emerged, and they continue to mutate rapidly, raising concerns about the weakening of vaccine efficacy, and the very elderly populations are vulnerable to Coronavirus Disease 2019 (COVID-19). Therefore, to investigate the effect of multiple doses of mRNA vaccine for the newly emerged variants on these populations, cross-neutralizing antibody titers were examined against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) variants, including BQ.1.1 and XBB. Methods: Blood samples were taken from residents at four long-term care facilities in Hyogo prefecture, Japan (median age, 91 years), after 3rd (n = 67) and 4th (n = 48) mRNA vaccinations, from April to October 2022. A live virus microneutralization assay was performed to determine the neutralizing antibody titers in participants’ sera. Results: After 3rd vaccination, cross-neutralizing antibody prevalence against conventional (D614G) virus, Delta, Omicron BA.2, BA.5, BA.2.75, BQ.1.1, and XBB were 100%, 97%, 81%, 51%, 67%, 4%, and 21%, respectively. After 4th vaccination, the antibody positivity rates increased to 100%, 100%, 98%, 79%, 92%, 31%, and 52%, respectively. The 4th vaccination significantly increased cross-neutralizing antibody titers against all tested variants. Conclusion: The positivity rates for BQ.1.1 and XBB increased after 4th vaccination, although the titer value was lower than those of BA.5 and BA.2.75. Considering the rapid mutation of viruses and the efficacy of vaccines, it may be necessary to create a system that can develop vaccines suitable for each epidemic in consideration of the epidemic of the virus

Association between combined lifestyle factors and non-restorative sleep in Japan: a cross-sectional study based on a Japanese health database.

Although lifestyle factors such as cigarette smoking, excessive drinking, obesity, low or no exercise, and unhealthy dietary habits have each been associated with inadequate sleep, little is known about their combined effect. The aim of this study was to quantify the overall impact of lifestyle-related factors on non-restorative sleep in the general Japanese population.A cross-sectional study of 243,767 participants (men, 39.8%) was performed using the Specific Health Check and Guidance System in Japan. A healthy lifestyle score was calculated by adding up the number of low-risk lifestyle factors for each participant. Low risk was defined as (1) not smoking, (2) body mass index<25 kg/m², (3) moderate or less alcohol consumption, (4) regular exercise, and (5) better eating patterns. Logistic regression analysis was used to examine the relationship between the score and the prevalence of non-restorative sleep, which was determined from questionnaire responses. Among 97,062 men (mean age, 63.9 years) and 146,705 women (mean age, 63.7 years), 18,678 (19.2%) and 38,539 (26.3%) reported non-restorative sleep, respectively. The prevalence of non-restorative sleep decreased with age for both sexes. Compared to participants with a healthy lifestyle score of 5 (most healthy), those with a score of 0 (least healthy) had a higher prevalence of non-restorative sleep (odds ratio, 1.59 [95% confidence interval, 1.29-1.97] for men and 2.88 [1.74-4.76] for women), independently of hypertension, hypercholesterolemia, diabetes, and chronic kidney disease. The main limitation of the study was the cross-sectional design, which limited causal inferences for the identified associations.A combination of several unhealthy lifestyle factors was associated with non-restorative sleep among the general Japanese population. Further studies are needed to establish whether general lifestyle modification improves restorative sleep

低レイノルズ数における柔軟膜翼周りの非定常流れ場

レポート番号: ISAS2022-SFMA-04