Purpose: s: The association between alcohol consumption, health, and mortality is intricate, with marital status being a determinant of drinking behavior. This study investigated the combined effect of alcohol consumption patterns and marital status on mortality in middle-aged and older Korean individuals. Methods: This prospective longitudinal study used data from the Korean Longitudinal Study of Aging, conducted from 2006 to 2020. The study population comprised individuals who were consuming alcohol around the time of the basic survey and participated in the 1st wave 2006 study. We divided 3,823 drinkers older than 45 into four groups: “normal drinker and married (NM),” “normal drinker and unmarried (NUM),” “excessive drinker and married (EM),” and “excessive drinker and unmarried (EUM).” A Cox proportional hazards regression analysis was performed for survival analysis. Results: The median survival time of the EUM group was 11.9 years. After adjusting for the covariates, the mortality risk among the NUM, EM, and EUM were approximately 1.67 times, 1.33 times, and 3.10 times higher than that among the NM, respectively. Conclusion Middle- and old-aged unmarried people with excessive drinking patterns constitute a highrisk group for mortality. Community healthcare providers should focus on characteristics that differ by age, considering family-related factors, and assessing alcohol consumption patterns to reduce mortality.Among middle- and old-aged people, support for unmarried and excessive drinkers should be strengthened, and consultation on visiting community-based clinics should be promoted to improve firmly established alcohol consumption patterns.

Purpose: s: The association between alcohol consumption, health, and mortality is intricate, with marital status being a determinant of drinking behavior. This study investigated the combined effect of alcohol consumption patterns and marital status on mortality in middle-aged and older Korean individuals. Methods: This prospective longitudinal study used data from the Korean Longitudinal Study of Aging, conducted from 2006 to 2020. The study population comprised individuals who were consuming alcohol around the time of the basic survey and participated in the 1st wave 2006 study. We divided 3,823 drinkers older than 45 into four groups: “normal drinker and married (NM),” “normal drinker and unmarried (NUM),” “excessive drinker and married (EM),” and “excessive drinker and unmarried (EUM).” A Cox proportional hazards regression analysis was performed for survival analysis. Results: The median survival time of the EUM group was 11.9 years. After adjusting for the covariates, the mortality risk among the NUM, EM, and EUM were approximately 1.67 times, 1.33 times, and 3.10 times higher than that among the NM, respectively. Conclusion Middle- and old-aged unmarried people with excessive drinking patterns constitute a highrisk group for mortality. Community healthcare providers should focus on characteristics that differ by age, considering family-related factors, and assessing alcohol consumption patterns to reduce mortality.Among middle- and old-aged people, support for unmarried and excessive drinkers should be strengthened, and consultation on visiting community-based clinics should be promoted to improve firmly established alcohol consumption patterns.

Purpose: s: The association between alcohol consumption, health, and mortality is intricate, with marital status being a determinant of drinking behavior. This study investigated the combined effect of alcohol consumption patterns and marital status on mortality in middle-aged and older Korean individuals. Methods: This prospective longitudinal study used data from the Korean Longitudinal Study of Aging, conducted from 2006 to 2020. The study population comprised individuals who were consuming alcohol around the time of the basic survey and participated in the 1st wave 2006 study. We divided 3,823 drinkers older than 45 into four groups: “normal drinker and married (NM),” “normal drinker and unmarried (NUM),” “excessive drinker and married (EM),” and “excessive drinker and unmarried (EUM).” A Cox proportional hazards regression analysis was performed for survival analysis. Results: The median survival time of the EUM group was 11.9 years. After adjusting for the covariates, the mortality risk among the NUM, EM, and EUM were approximately 1.67 times, 1.33 times, and 3.10 times higher than that among the NM, respectively. Conclusion Middle- and old-aged unmarried people with excessive drinking patterns constitute a highrisk group for mortality. Community healthcare providers should focus on characteristics that differ by age, considering family-related factors, and assessing alcohol consumption patterns to reduce mortality.Among middle- and old-aged people, support for unmarried and excessive drinkers should be strengthened, and consultation on visiting community-based clinics should be promoted to improve firmly established alcohol consumption patterns.

Purpose: With an increase in the aging population, the number of patients with degenerative spinal diseases undergoing surgery has risen, as has the incidence of postoperative delirium. This study aimed to investigate the risk factors affecting postoperative delirium in older adults who had undergone spine surgery and to identify the associated biomarkers. Methods: This study is a prospective study. Data of 100 patients aged ≥ 70 years who underwent spinal surgery were analyzed. Demographic data, medical history, clinical characteristics, cognitive function, depression symptoms, functional status, frailty, and nutritional status were investigated to identify the risk factors for delirium. The Confusion Assessment Method, Delirium Rating Scale-R-98, and Nursing Delirium Scale were also used for diagnosing deliri-um. To discover the biomarkers, urine extracellular vesicles (EVs) were analyzed for tau, ubiquitin carboxy-terminal hydrolase L1 (UCH-L1),neurofilament light, and glial fibrillary acidic protein using digital immunoassay technology. Results: Nine patients were excluded, and data obtained from the remaining 91 were analyzed. Among them, 18 (19.8%) developed delirium. Differences were observed between partici-pants with and without delirium in the contexts of a history of mental disorder and use of benzodiazepines (p = .005 and p = .026, respectively). Tau and UCH-L1—concentrations of urine EVs—were comparatively higher in participants with severe delirium than that in partici-pants without delirium (p = .002 and p = .001, respectively). Conclusion These findings can assist clinicians in accurately identifying the risk factors before surgery, classifying high-risk patients, and predicting and detecting delirium in older patients. Moreover, urine EV analysis revealed that postoperative delirium following spinal surgery is most likely associated with brain damage.

We previously reported the successful establishment of embryonic stem cell (ESC)-like multipotent spermatogonial stem cells (mSSCs) from neonatal mouse testis. Here, we examined the ability of mSSCs to differentiate into vascular endothelial cells and smooth muscle cells, and compared to that of mouse ESCs. We used real-time reverse transcriptase polymerase chain reaction and immunohistochemistry to examine gene expression profiles of mSSCs and ESCs during in vitro vascular differentiation. Both mSSCs and ESCs exhibited substantial increase in the expression of mesodermal markers, such as Brachyury, Flk1, Mesp1, Nkx2.5, and Islet1, and a decrease in the expression of pluripotency markers, such as Oct3/4 and Nanog during the early stage of differentiation. The mRNA levels of vascular endothelial (VE)-cadherin and CD31 gradually increased in both differentiated mSSCs and ESCs. VE-cadherin- or CD31-positive cells formed sprouting branch-like structures, as observed during embryonic vascular development. At the same time, vascular smooth muscle cell-specific markers, such as myocardin and alpha-smooth muscle actin (SMA), were also highly expressed in differentiated mSSCs and ESCs. Immunocytochemical analysis revealed that the differentiated cells expressed both alpha-SMA and SM22-alpha proteins, and exhibited the intracellular fibril structure typical of smooth muscle cells. Overall, our findings showed that mSSCs have similar vascular differentiation abilities to those of ESCs, suggesting that mSSCs may be an alternative source of autologous pluripotent stem cells for vascular regeneration.
Animals ; Animals, Newborn ; Biological Markers/metabolism ; Cell Differentiation/physiology ; Embryonic Stem Cells/cytology/physiology ; Endothelial Cells/*cytology/physiology ; Gene Expression ; Gene Expression Profiling ; Humans ; Immunohistochemistry ; Male ; Mice ; Muscle, Smooth, Vascular/*cytology/physiology ; Myocytes, Smooth Muscle/*cytology/physiology ; Pluripotent Stem Cells/*cytology/physiology ; Real-Time Polymerase Chain Reaction ; Spermatogonia/*cytology/physiology ; Testis/*cytology/physiology

BACKGROUND AND OBJECTIVES: The increased risk of cardiovascular disease in patients with chronic renal failure (CRF) has been explained by accelerated atherosclerosis and impaired angiogenesis, where endothelial progenitor cells (EPC) may play key roles. It was hypothesized that : "an altered EPC biology may contribute to the pathophysiology of CRF". SUBJECTS AND METHODS: EPC were isolated from CRF patients on maintenance hemodialysis (n=44) and from a normal control group (n=30). After morphological and immunological characterization, the number and in vitro angiogenic function of the EPC were evaluated. RESULTS: CRF patients showed markedly decreased numbers of EPC (44.6%) and colonies (75.3%) compared to the controls (p<0.001). These findings were corroborated by a 30.5% decrease in the migratory function in response to vascular endothelial growth factor (VEGF)(p=0.040) and by a 48.8% decrease in EPC incorporation into human umbilical vein endothelial cells (HUVEC)(p<0.001). In addition, The Framingham's risk factor scores of both the CRF (r=-0.461, p=0.010) and normal groups (r=-0.367, p=0.016) were significantly correlated with the numbers of EPC. Indeed, under the same burden of risk factors the number of circulating EPC was significantly lower in CRF patients than in the normal group (p<0.001). A significant correlation was also observed between the dialysis dose (Kt/V) and EPC incorporation into the HUVEC (r=0.427, p=0.004). CONCLUSION: The EPC biology, which is critical for neovascularization and the maintenance of vascular function, was altered in CRF. Our data strongly suggest that dysfunction of circulating EPC has a role in the progression of cardiovascular disease in patients with CRF.
Atherosclerosis ; Biology ; Cardiovascular Diseases ; Coronary Artery Disease ; Dialysis ; Endothelial Cells ; Human Umbilical Vein Endothelial Cells ; Humans ; Kidney Failure, Chronic* ; Renal Dialysis ; Risk Factors ; Stem Cells* ; Vascular Endothelial Growth Factor A