SciCombinator

Discover the most talked about and latest scientific content & concepts.

Journal: Aging clinical and experimental research

314

WHO declared SARS-CoV-2 a global pandemic. The present aim was to propose an hypothesis that there is a potential association between mean levels of vitamin D in various countries with cases and mortality caused by COVID-19. The mean levels of vitamin D for 20 European countries and morbidity and mortality caused by COVID-19 were acquired. Negative correlations between mean levels of vitamin D (average 56 mmol/L, STDEV 10.61) in each country and the number of COVID-19 cases/1 M (mean 295.95, STDEV 298.7, and mortality/1 M (mean 5.96, STDEV 15.13) were observed. Vitamin D levels are severely low in the aging population especially in Spain, Italy and Switzerland. This is also the most vulnerable group of the population in relation to COVID-19. It should be advisable to perform dedicated studies about vitamin D levels in COVID-19 patients with different degrees of disease severity.

149

Parkinson’s disease (PD) is a progressive, neurodegenerative disease which leads to postural and gait disorders, limitation in mobility, activities of daily living and disability.

Concepts: Neurodegenerative disorders, Neurology

28

Various studies are underway to identify protective variables for the COVID-19 pandemic. We hypothesized that if indeed the vitamin D levels would be protective in the European population, as recently proposed, the correlation would become more robust when the countries had passed the infection peak as on May 12 2020, compared to April 8 2020, when the majority had not. Comparative analysis of data from the mentioned stages indicated a significant increase in negative correlation of vitamin D levels with COVID-19 cases per million population in later stage (r(20): -0.5504; R2 = 0.3029; p value: 0.0119 vs r(20): -0.4435; R2 = 0.1967; p value: 0.0501), whereas the correlation with deaths per million population became insignificant (r(20): -0.3935; R2 = 0.1549; p value: 0.0860 vs r(20): -0.4378; R2 = 0.1917; p value: 0.0535). Considering divergence of vitamin D levels from the mean in subgroups, e.g. children, women, aged, dedicated exploratory studies with carefully chosen matched target groups is advisable.

28

Background and Aims : Chronic mesenteric ischemia in older patients is a challenge for the physician because it coincides with a vague and non-specific clinical presentation with abdominal pain. It can frequently cause diagnostic errors lead to legal consequences. The aim of this work was to evaluate the literature on chronic mesenteric ischemia and focus on the limited data concerning the geriatric population. Methods : This research focused on observational studies, randomized controlled trials, and clinical reports (excluding case reports and reviews) dealing with patients at least 65 years old with a clinical or instrumental diagnosis of chronic intestinal ischemia, published between 2000 and 2010. The search was conducted in PubMed using the following key words: chronic ischemic splanchnic disease, chronic mesenteric ischemia, angina abdominis, chronic abdominal angina, intestinal ischemia. Results: We selected 925 articles with the key words as follows: chronic mesenteric ischemia in 355 cases; chronic ischemic splanchnic disease in 46; angina abdominis in 4; abdominal angina in 242; and chronic intestinal ischemia in 278. We then excluded articles judged scarcely pertinent, case reports, reviews, works concentrating only on diagnostic, methodological, instrumental and surgical approaches, and articles based on animal or experimental models. This selection left us with 13 articles (after excluding duplicates), only three of which were considered valid for our purposes. Conclusions: Our review indicates that there is a shortage of useful literature on chronic intestinal ischemic disease diagnosed in the older adults, and the appropriate geriatric management of these patients is consequently not well established.

Concepts: Randomized controlled trial, Diagnosis, Ischemic colitis, Medical terms, Medicine, Mesenteric ischemia, Ischemia, Abdominal pain

28

Background: Exercise capacity is critical for therapy and prognosis in patients with heart failure (HF). Effect of beta-blockers (BB) on exercise capacity in elderly patients with HF remains unclear. Objectives: To assess contribution of BB to functional capacity and left ventricular (LV) function in the elderly with HF. Design: According to the protocol of CIBISELD study group, elderly patients were treated with BB during 12 weeks. In CPET subgroup, an integral part of the CIBIS ELD study group, patients were performed Doppler echocardiography and cardiopulmonary exercise testing (CPET) before BB therapy and after 12 weeks. Setting: Randomized patients with HF beta blockers naïve. Participants: Thirty patients with HF aged over 65 years were included in CPET subgroup, while 847 incorporated in CIBIS ELD study group. Results: Heart rate (HR) and systolic blood pressure (SBP) after BB significantly decreased at rest (p < 0.001) and during exercise (p< 0.05), with sustained level of peak VO2. Observed changes of resting HR and peak HR were closely correlated (p < 0.001). Significant improvement of LV ejection fraction after BB was obtained (p= 0.003) and symptoms of breathlessness were reduced (p= 0.001). Left ventricular diastolic dysfunction at rest significantly contributed to exercise capacity (p = 0.019). Conclusions: Beta-blockers in elderly patients with HF are related to a significant decrease of HR and SBP, improvement of systolic LV function and sustained exercise tolerance. Resting LV diastolic dysfunction is strongly associated with lower exercise capacity.

Concepts: Hypotension, Ventricle, Echocardiography, Ejection fraction, Hypertension, Blood pressure, Cardiology, Myocardial infarction

27

A large body of evidence indicates that cerebral hypoperfusion is one of the earliest signs in the development of Alzheimer’s disease (AD). The aim of our study was to evaluate whether the brain reperfusion rehabilitation therapy (BRRT) would improve verbal memory and learning and/or global cognitive impairment in mild AD.

Concepts: Brain, Alzheimer's disease, Neuron, Cognition, Medicine, Traumatic brain injury, Psychology, Memory

25

The purpose of this study is to determine the prevalence of frailty with the Fried Frailty Index (FFI) and FRAIL scales (Fatigue, Resistance, Ambulation, Illness, Low weight) and also its associated factors in the community-dwelling Turkish elderly.

Concepts: According to Jim

24

Regular participation in strength exercise is important to promote healthy aging. However, much of the available evidence on physical activity and older adults has focused on aerobic activity, while there is less research on the benefits of exercise that is performed specifically to strengthen muscles.

24

Necrotizing fasciitis (NF) of odontogenic origin affecting the head and neck region is a rare but serious clinical condition, which, if diagnosed late, can lead to a fatal outcome. The early diagnosis of necrotizing fasciitis can be difficult. Delay in diagnosis leads to increase in the area of necrosis with a resulting increase in cosmetic deformity and life-threatening complication. In this study, we present two cases of elderly patients with aggressive NF affecting the neck and anterior mediastinum, which were of odontogenic origin.

Concepts: Pneumonia, Head and neck, Head and neck anatomy, Death, Medical terms, Gangrene, Necrosis, Necrotizing fasciitis

23

Vascular calcification is one of the risk factors for arterial stiffness in patients with chronic kidney disease. We hypothesized that a mismatch between elastic and muscular arteries, represented as pulse wave velocity (PWV) ratio, could depict the extent of vascular calcification in end-stage renal disease. We also aimed to compare the predictive PWV ratio value to other factors possibly related to vascular calcification in dialysis population.

Concepts: Dialysis, Kidney, Erythropoietin, Blood pressure, Renal failure, Nephrology, Chronic kidney disease