Effect of bittern immersion on textural properties and water-holding capacity in beef.

Hard meat has low market value; hence, we used bittern as a novel meat tenderizer for bovine M. semitendinosus, one of a hard muscle. We investigated the effects of beef immersion in bittern, a basic solution primarily comprising MgCl2, on textural properties and water-holding capacity. Muscle samples from M. semitendinosus of Holstein steers were immersed in seven different solutions (RO, NaCl, MgCl2, red wine, pH 3, bittern, and pH 8) and heated at 80°C for 5min. The pH of the beef and immersion solutions, water-holding capacity, and maximum load of the meat were measured. Although beef immersed in red wine (pH 3) had a lower pH and water-holding capacity, that immersed in bittern (pH 8.4) had a higher pH and higher water holding capacity. These results indicate that immersion in acidic red wine may harden beef and that immersion in basic bittern may be more effective in maintaining water-holding capacity and softening beef.

Early rehabilitation in older patients hospitalized with acute decompensated heart failure: A retrospective cohort study.

Although hospitalized patients with acute decompensated heart failure (ADHF) have severe physical dysfunction, little data are available on the comparative effectiveness of early versus late rehabilitation. This study examined the relationship between early compared to late rehabilitation and physical function among older patients hospitalized for ADHF. METHODS: In a retrospective cohort study, independent patients aged ≥65 years at baseline who were hospitalized for ADHF from 2012 to 2014 and underwent inpatient rehabilitation were identified using Emergency Department visit data and electronic medical records at two hospitals. Patients were classified into those who underwent early rehabilitation (initiated within 72 hours of admission) and late rehabilitation (after 72 hours). Primary outcome was length of time from admission until the patient was able to walk independently. Multivariable competing-risk regression with death as the competing event was used to adjust for potential confounding factors, and multiple imputation (MI) analysis was performed. RESULTS: Of 259 individuals, 30 (11.6%) commenced rehabilitation within 72 hours after admission while 229 (88.4%) did so 72 hours after admission. Patients who received early rehabilitation had a higher rate of unassisted walking for at least 40 m by 30 days after admission (hazard ratio: 8.03; 95% confidence interval: 2.15 to 29.98; P = .002 in the multivariable adjusted model) than those who received late rehabilitation. Similar findings were observed on MI analysis. CONCLUSION: Early rehabilitation therapy commenced within 72 hours of admission was associated with a higher rate of recovery of an activity of daily living (independent walking on a level surface).

Persistence of positive severe acute respiratory syndrome coronavirus-2 reverse transcription-polymerase chain reaction test result for 24 days in a hospitalized asymptomatic carrier.

BACKGROUND: Several countries have imposed a mandatory 14-day period of quarantine on individuals arriving from countries considered high-risk for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. However, it is not clear how long asymptomatic patients infected with SARS-CoV-2 can be an asymptomatic carrier. CASE PRESENTATION: We experienced a case of an asymptomatic female patient infected with SARS-CoV-2 with abnormal chest computed tomography findings. She did not develop a fever during hospitalized isolation. She remained reverse transcription-polymerase chain reaction-positive for 24 days. CONCLUSION: An asymptomatic patient diagnosed with SARS-CoV-2 infection remained reverse transcription-polymerase chain reaction-positive for 24 days, although she was quarantined in an isolation hospital. This finding suggests that an asymptomatic patient diagnosed with SARS-CoV-2 infection with abnormal chest computed tomography findings can be an asymptomatic carrier for more than 3 weeks.

Association Between Subjective Sleep Quality and Future Risk of Falls in Older People: Results From LOHAS.

Background: Inadequate sleep is correlated with morbidity and mortality among older adults. However, the longitudinal relationship between subjective sleep quality and risk of falls in the elderly population remains to be clarified. Methods: Study participants were from Locomotive Syndrome and Health Outcome in Aizu Cohort Study (LOHAS) sites (1,071 community-dwelling people ≧65 years of age, mean: 71 years). Subjective sleep quality was measured by the Pittsburgh Sleep Quality Index (PSQI). Occurrence of falls (defined as experiencing at least one fall) during the subsequent year was ascertained by a self-reported questionnaire. Results: Mean global PSQI score was 4.3 (SD 3.2), with 28.9% of participants rating their sleep quality as poor (PSQI > 5). A total of 210 participants (19.6%) fell at least once in the year following sleep examination. Multivariable analysis revealed that participants reporting worse subjective sleep quality had significantly higher odds of experiencing falls during the 1-year follow-up period (adjusted odds ratio [AOR] = 1.50 for each three-point increase in global PSQI score; 95% confidence interval [CI] = 1.20, 1.89). Participants in the highest global PSQI score (PSQI > 5) quartile had significantly increased odds of experiencing falls compared to those in the lowest global score quartile (PSQI < 2; AOR = 2.14; 95% CI = 1.09, 4.22). This association was similarly significant in subgroup analyses for older men and women, nonusers of sleep medication, and those without a history of falls at baseline. Conclusion: Subjective poor sleep quality, as measured by the PSQI, is longitudinally associated with greater risk of experiencing falls in community-dwelling older adults.

Cavotricuspid isthmus conduction split by pouch-like recesses during typical atrial flutter.

A 58-year-old man had typical cavotricuspid-isthmus-dependent atrial flutter (AFL). Right atrial angiography and multidetector computed tomography revealed a deep pouch-like recess in the mid-isthmus region. Linear ablation from the pouch to the edge of the inferior vena cava resulted in widely split double potentials without any change in the AFL cycle length. This observation suggested that the pouch played an electrophysiological role by dividing the flutter wavefront into 2 parallel conduction wave fronts through both sides of the pouch along the isthmus during typical AFL. When a widely split potential is created on 1 side of the pouch, the other side of the pouch should be targeted.