Čedomir Stevčić

Serbia n/a

Article

Commented on Mapping hidden space-charge distributions across crystalline metal oxide/group IV semiconductor interfaces
By analyzing the properties of a semiconductor combined with a new thin oxide sheet, the authors have discovered new properties in a semiconductor material using a powerful and unconventional technique, and this finding reveals the role of oxygen impurities in semiconductor properties.

Article

Commented on Printable logic circuits comprising self-assembled protein complexes
This proof-of-concept study demonstrated that it is possible to create stable digital circuits that take advantage of an electron’s properties at quantum scales by constructing self-assembled, protein-based circuits coupled with human-made electrodes that can perform simple logic functions (electron tunneling behavior for modulating the current). This is one of the fastest molecular logic circuits yet reported – they were able to switch a 3.3 kHz input signal.

Hub

Commented on Medical Advancements
Scientists from Washington State University found that CD4-positive helper T cells contributed to the initiation of a chain of antitumor immunity defenses that improves the infiltration efficiency of killer cells into melanoma and breast cancer tumors. This discovery may improve cancer immunotherapy for targeting cancer cells using the body’s own immune system rather than radiation. Study: 🔗https://doi.org/10.4049/jimmunol.2100852🔗

Hub

Commented on Applied Biology & Biotechnology
Researchers from the Lawrence Berkeley Laboratory found a method to produce an alternative jet fuel by harvesting an unusual carbon molecule produced by the metabolic process of bacteria that are commonly found in soil. This fuel would work a lot like biodiesel and it would be very powerful, although it would have to be modified to allow ignition at lower temperatures. Study: 🔗https://doi.org/10.1016/j.joule.2022.05.011🔗

Article

Commented on Comparative transcriptomics reveals circadian and pluripotency networks as two pillars of longevity regulation
The authors found that long-lived organisms often exhibit low expression of genes involved in inflammation and energy consumption and high expression of genes involved in DNA repair, RNA transport, and cellular skeleton organization. These findings about the mechanisms that control gene expression (i.e. circadian and pluripotency networks) propose new targets to fight aging and age-related disorders.

Article

Commented on Longitudinal associations of childhood fitness and obesity profiles with midlife cognitive function: an Australian cohort study
This is the world’s first study of the effects of childhood fitness and obesity on cognition in middle age (more than 1200 people born in 1985; more than 30 years) showing that midlife scores on evaluations of attentiveness, processing speed, and overall cognitive function were higher in fit children. These results that youth fitness and obesity affect cognition in middle life are unaffected by socioeconomic status in childhood, academic ability, or cigarette and alcohol use in middle age.

Article

Commented on Sleep Disturbances, Changes in Sleep, and Cognitive Function in Low-Income African Americans
This long-term study (over 5 years) analyzed 216 people (aged 50 and older) from two Pittsburgh neighborhoods (i.e. a high proportion of low-income African Americans) for the relationship between sleep and cognition. Results showed that more fragmented sleep and longer stretches of wakefulness after bedtime were related to inferior cognitive function, such as poor attention, executive function, and visuospatial abilities. Therefore, bettering sleep quality may aid in the prevention of dementias like Alzheimer’s and others.

Article

Commented on Six Applications of Plant Based Diets for Health Promotion
This large review that involved more than 600 cardiologists provide information and evidence that a plant-based diet is very beneficial for these 6 health conditions: 1. Weight loss and maintenance - people on a plant-based diet had around 9 pounds less than those who did not, and also decreased mortality risk (70,000 participants); 2. Cardiovascular disease - plant-based diet lowered LDL “bad” cholesterol by 13 mg/dl and the rate of heart disease deaths by 24%; 3. Cancer - 70% lower risk of breast cancer with a plant-based diet; 4. Diabetes - 34% decrease in type 2 diabetes risk with plant-based; 5. Alzheimer’s disease - 60% decreased risk of Alzheimer’s disease with a plant-based diet. 6. COVID-19 - 41% reduction in risk of severe COVID-19 as well as a 9% reduction in infection of any severity with a plant-based diet.

Hub

Commented on Medical Advancements
Researchers from Sweden’s Karolinska Institutet and SciLifeLab found a ground-breaking technique to enhance a protein’s ability to repair oxidative DNA damage while also creating a new protein function. This discovery may lead to better treatments for oxidative stress-related illnesses such as Alzheimer’s, lung diseases, cancer, and others. Study: 🔗https://doi.org/10.1126/science.abf8980🔗

Hub

Commented on Environmental Science
Pesticides, plastics, and heavy metals in soil may damage cardiovascular health through a number of mechanisms including inflammation, increasing oxidative stress in the blood vessels, and disrupting the circadian rhythm. Air, soil, and water pollution is responsible for at least 9 million deaths annually and more than 60% of pollution-related disease and death is due to cardiovascular diseases (e.g. heart attack, chronic ischaemic heart disease, stroke, and arrhythmias). Review: 🔗https://doi.org/10.1093/cvr/cvac082🔗

Article

Commented on Maternal stress, child behavior and the promotive role of older siblings
The authors tested 373 German mother-child pairs from pregnancy until the children were 10 years old and found that stress throughout their pregnancy may cause behavioral issues in the children. Another discovery from this study is that older siblings may reduce the possibility that their younger siblings may have behavioral issues.

Article

Commented on In Vivo Detection of Plaque Erosion by Intravascular Optical Coherence Tomography Using Artificial Intelligence
The authors developed a brand-new artificial intelligence (AI) technique that accurately identified 80% of the instances of plaque erosion with a 73% positive predictive value. This technique uses intravascular optical coherence tomography (OCT) images to automatically detect plaque erosion in the arteries of the heart.

Article

Commented on Progressive liver, kidney, and heart degeneration in children and adults affected by TULP3 mutations
The authors have identified a new disease, an inherited condition known as TULP3-related ciliopathy, which results in kidney and liver failure in both children and adults. This discovery may provide hope to people suffering from unexplained liver and kidney issues.

Article

Commented on Exploration of Primary Care Clinician Attitudes and Cognitive Characteristics Associated With Prescribing Antibiotics for Asymptomatic Bacteriuria
Based on a single positive urine sample, a study of 723 primary care doctors discovered that an estimated 70% of them would still recommend antibiotics to treat asymptomatic infections despite long-standing medical standards that advise against this practice.

Article

Commented on High-Antioxidant Potatoes: Acute in Vivo Antioxidant Source and Hypotensive Agent in Humans after Supplementation to Hypertensive Subjects
The authors found that violet-hued potatoes increased the antioxidant capacity of the bloodstream within hours of consumption, so they concluded that purple potatoes lower the risk of heart disease and stroke in patients with hypertension without causing weight gain.