Articles tagged with Vascular Diseases
Researchers find that patients with destructive nasal lesions may be suffering from cocaine-induced granulomatosis with polyangiitis, a condition often misdiagnosed. Cocaine use can trigger production of antibodies leading to symptoms similar to idiopathic Granulomatosis With Polyangiitis.
A new procedure has shown promising results in avoiding leg amputation for patients with severe peripheral artery disease. The PROMISE II U.S. clinical trial found that 76% of patients were able to keep their legs and had completely healed or healing wounds six months post-procedure.
Research by Whitehead et al. reveals that cellular senescence triggers amyloidosis through changes in small extracellular vesicles and extracellular matrix composition. The study provides novel insights into the formation of aortic medial amyloid and offers potential therapeutic targets for mitigating its effects.
Researchers from Kyushu University found that the single mechanosensitive protein VGLL3 induces fibrosis, thickening and scarring tissue. The study suggests targeting this protein could lead to new treatments against fibrosis.
A new study finds that smokeless tobacco products increase the risk of developing peripheral artery disease by two-fold compared to non-users. The study analyzed data from 14,344 participants and found a significant association between smokeless tobacco use and PAD, with a rate of 4.4 cases per 1,000 person years.
A study by Tokyo Medical and Dental University reveals that chronic kidney disease promotes vascular calcification by altering signaling molecules in blood vessel walls. The researchers identified four microRNAs that target a key pathway driving calcification, providing potential biomarkers and therapeutic targets for both diseases.
A University of Ottawa study found that almost two-thirds of Canadians with stroke experience disturbed sleep, and those affected are up to 7 times more likely to report multiple sleep problems. The study highlights the need for better awareness and guidance on managing sleep disorders in stroke patients.
Researchers at Indiana University School of Medicine have identified a new type of cell called the vasculogenic fibroblast, which can help create new blood vessels for treatment. This discovery could lead to improved treatments for ischemic diseases such as diabetic wounds.
The BIAL Award in Biomedicine is a prestigious international award that recognises outstanding biomedical research. The €300,000 prize is given to researchers whose work has shown exceptional quality and scientific relevance, published within the last ten years.
Researchers developed a microfluidic model of vascular malformation caused by PIK3CA mutation, allowing them to study disease mechanisms and test treatment efficacy. The model successfully replicated the disease's manifestations and responded to alpelisib, a newly approved PIK3CA inhibitor.
A new study has identified a biomarker, placental growth factor (PlGF), which is associated with cognitive impairment and dementia due to vascular brain injury. Higher levels of PlGF in the bloodstream are linked to increased risk of cognitive decline and cerebral small vessel disease.
A UTHealth Houston study found caregivers of people at high risk of CTE are more likely to seek information from social media than physicians. The study also showed that participants reported 77% of online CTE information is probably true, with league-sponsored websites and healthcare providers being the least credible sources.
Low blood sugar levels trigger an increase in retinal cell proteins, leading to overgrowth of abnormal blood vessels and worsening diabetic eye disease. The study suggests that keeping glucose levels stable is crucial for preventing vision loss in people with diabetes.
Researchers found a link between astrocytes from schizophrenic patients and reduced vascularization in the brain, which may contribute to the disease's metabolic flux. The study suggests that astrocytes could be a target for novel therapies to address schizophrenia.
The procedure requires thorough pre-procedural evaluation and assessment of anatomical and hemodynamic data. Long-term results indicate that TPVR can effectively restore RVOT function, while improving survival rates and reducing the need for reintervention across age groups. Vigilant testing is recommended to avoid rare but serious com...
The December issue of CHEST journal features articles on COVID-19 lessons learned and future pandemic preparedness. The journal also explores various topics in chest medicine, including asthma, critical care, and sleep medicine.
Researchers explore the interactions between adipose tissues and surrounding blood vessels in connection with lipid metabolism and associated diseases. Targeting angiogenesis may provide a gateway for treating obesity, while its inhibition or promotion depends on the specific disease context.
The November issue of CHEST journal features new guidelines for perioperative management, studies on COVID-19 treatment and COPD treatment, as well as research on sleep apnea and long COVID. These findings have significant implications for patient care and healthcare resource use.
Researchers at Brigham and Women's Hospital developed a novel bioink capable of constructing functional and mechanically strong blood vessels. The bioink enables bioprinting of conduits with key physiological characteristics similar to native vessels, potentially serving as vascular models for grafts in surgeries and disease studies.
A study published in Nature has identified 61 additional genetic loci associated with stroke and six genes that are potential targets for drug therapy. The research also found a significant overlap between stroke and dementia, suggesting common biology between the two conditions.
Researchers found significant regional differences in LTC spending, driven by factors such as population demographics and disability classification. Preventive measures may help reduce costs by reducing the need for long-term care.
A nationwide cohort study in Japan found that fulminant myocarditis is associated with older age, non-sinus rhythm, low ejection fraction, and severe histological damage. The study showed a 29% 90-day mortality rate, highlighting the need for improved management strategies.
Researchers developed a machine learning model to quickly recognize predictive risk factors and their importance for undesirable hospitalization outcomes. The model achieved an accuracy of 95.6% and identified modifiable risk factors that can be mitigated through clinical interventions.
Researchers at the University of Toledo found that consumption of highly refined fiber may increase liver cancer risk in some individuals, particularly those with a silent vascular deformity. The study discovered that high concentrations of bile acids caused by a portosystemic shunt led to the development of liver cancer.
Researchers have developed an injectable shear-thinning hydrogel that exhibits enhanced cohesive strength, resisting fragmentation even under pulsating liquid flows. The gel, similar to toothpaste, retains its structure when force is removed, making it a potential breakthrough in treating critical vascular conditions.
A new study suggests that spironolactone, a medication for heart problems and high blood pressure, may also be effective in reducing alcohol drinking. The research found that increasing doses of spironolactone decreased alcohol consumption in mice and rats, as well as in humans with excessive alcohol drinking.
The September issue of CHEST journal features 40 articles on clinically relevant topics, including disparities in rural populations with idiopathic pulmonary fibrosis. The journal also offers complementary web and multimedia activities to expand its reach.
Researchers at National University of Singapore have identified S1P as a potent signaling molecule crucial for maintaining blood vessel integrity and function. The study highlights the importance of S1P export from blood cells and blood vessels in preventing complications and mortality related to vascular diseases.
The July issue of CHEST journal features 62 articles on clinically relevant topics, including asthma and COPD. The journal has received an Impact Factor of 10.262, an increase from 2020's Impact Factor of 9.410.
A new study from UTHealth Houston found that whole blood exchange treatments decreased amyloid plaque formation in mice with Alzheimer's disease-causing amyloid precursor proteins. This approach has the advantage of treating the disease in the circulation instead of the brain, potentially bypassing the blood-brain barrier.
A long-term study of 3,926 adults with CKD found that higher levels of physical activity reduced the risk of atherosclerotic events, new-onset heart failure, and death. The association was strongest for incident peripheral arterial disease and reinforces current guideline recommendations.
The article provides guidance on alternative imaging methods for interventional radiology procedures, including the use of intravascular ultrasound, alternative contrast agents such as gadolinium and carbon dioxide, and case prioritization strategies to optimize available supplies. The authors recommend creating a priority matrix and h...
Researchers have identified a crucial role for two proteins YAP and TAZ in angiogenesis, the process of new blood vessel formation. They also found that this process is regulated by nutrient absorption and can be linked to vascular diseases like macular degeneration.
A recent review article highlights the crucial role of macrophages in the progression from acute kidney injury (AKI) to chronic kidney disease (CKD). The study suggests that targeting specific signaling pathways and altering macrophage activation can prevent renal fibrosis and CKD. Therapeutic strategies such as clodronate liposomes an...
A study found that US adults receiving hemodialysis with high air pollution exposure have more heart attacks and strokes compared to those with low exposure. The strongest associations were noted among patients who were Asian, older, or had chronic lung disease at dialysis initiation.
Researchers have discovered a new molecular treatment effective against low-flow vascular malformations using the AKT inhibitor miransertib. The study also found that active angiogenesis is needed for malformations to occur, opening the door to preventive strategies.
The American College of Chest Physicians' flagship journal CHEST published its June issue featuring 58 articles on various chest medicine topics, including asthma and COPD. The journal is set to expand with two new open-access journals, CHEST Pulmonary and CHEST Critical Care.
Researchers will track changes in the blood-brain barrier, neurovascular function, and cognition in over 850 participants with genetic variants at risk of developing Alzheimer’s disease. The study aims to improve understanding of the onset and progression of Alzheimer’s disease and identify effective interventions.
Researchers developed a new ultrasound localization microscopy technique to image blood vessels and measure blood flow in the brain. The method uses microscopic bubbles as a contrast agent and accelerates post-processing to 10-30 seconds, enabling rapid imaging of whole-brain microvasculature.
A study by Columbia University researchers found that the gene FMNL2 links cerebrovascular disease and Alzheimer's disease, suggesting changes in FMNL2 activity cause toxic protein clearance issues. This mechanism may lead to a way to prevent Alzheimer's in people with hypertension, diabetes, or heart disease.
Researchers discovered Empa, an FDA-approved diabetes medication, improved blood vessel function and reduced arterial stiffness in aged male mice. The study suggests SGLT2 inhibition may be a therapeutic tool to delay or reverse vascular aging in humans.
A study by researchers at UCSF found that e-cigarette use costs the US $15 billion annually in healthcare expenditures, with each user paying around $2,000 extra per year compared to non-users. The study, published in Tobacco Control, highlights the growing concern over health care costs associated with e-cigarette use.
Scientists found that a single 45-minute session of moderate-intensity exercise enables the growth of new blood vessels in people with type 2 diabetes. The exercise increases levels of ATP7A, a protein carried by exosomes that helps deliver essential copper to endothelial cells, promoting angiogenesis and reducing oxidative stress.
High blood pressure can cause long-lasting changes in the structure of vascular smooth muscle cells, stiffening arterial walls and increasing the risk of cerebrovascular disease. Researchers found that a signaling pathway triggered by E–T coupling is involved in this process, leading to inflammation and vascular remodeling.
A Johns Hopkins Medicine-led study found that COVID-19-induced loss of smell is linked to inflammation-caused nerve damage, weakening odor signals to the brain. The researchers discovered more severe vascular injury and fewer axons in the olfactory bulb of patients with diminished or complete loss of smell.
Researchers developed new method to visualize CNS fibroblasts and their intercellular interactions in the CNS. The technique provides a detailed picture of CNS fibroblasts, including their location, size, morphology, and gene/protein expression patterns.
Researchers found that AI-enhanced diagnosis helps doctors accurately detect fetal congenital heart disease, with fellows making the most accurate diagnoses. The new system uses graphical charts to represent the AI's analysis of ultrasound videos, improving accuracy and trust among medical professionals.
The American College of Chest Physicians journal features cutting-edge original research on various chest medicine topics, including asthma, COPD, critical care, and sleep. The March issue includes a special series on nontuberculous mycobacterial pulmonary disease, offering insights into clinical epidemiology, risk factors, and diagnosis.
Researchers created a new device called the lymphangion-chip, which models a section of a lymph vessel and can recreate conditions such as lymphedema. This innovation could lead to better understanding of mechanical forces regulating lymphatic physiology and pathophysiology.
Researchers developed a new imaging approach called VascuViz to visualize blood vessels at different spatial scales. The method enables detailed mathematical models and complementary images to clarify the role of blood flow in health and disease, advancing our understanding of tissues throughout the body.
A study led by Ohio State University Wexner Medical Center finds that Black patients with dilated cardiomyopathy have a higher risk of family members being affected. The research analyzed data from 1,220 patients and their relatives, revealing that 39% of Black patients had at least one first-degree family member with the condition.
Researchers at West Virginia University are investigating the link between chronic stress and Alzheimer's disease using animal models. They aim to understand how xanthine oxidase may sabotage brain blood vessels in Alzheimer's patients, and explore whether a medication can block this pathway to keep the brain healthy.
A study suggests that nearly 60 percent of the risk associated with coronary artery disease may be explained by changes in hundreds of genes working together in networks across several organs. Fat processing hormones may play a central role in coordinating this activity.
Researchers found that a unique protein variant in modern humans offers better protection against oxidative stress, but also increases the risk of vascular disease and inflammatory bowel disease. The Neanderthal variant is carried by around 1-2% of the population on the Indian subcontinent.
Scientists have found that the gene PBK is overexpressed in pulmonary hypertension, causing excessive cell proliferation and thickening of pulmonary artery walls. They are now exploring PBK inhibitors to reduce cell proliferation and improve heart and lung function.
Researchers found that up to one in five patients experience increased troponin levels after major surgery, indicating potential heart damage. These patients were also more likely to be anaemic before the operation.
A study of HIV-positive black and Latino men found that methamphetamine use combined with intimate partner violence boosts inflammatory and antiviral genes, leading to immune system exhaustion. This combination may increase the risk of developing cardiovascular disease and other disorders.
A new study published in the Journal of Experimental Medicine showed that a fast-tracked stroke drug, 3K3A-APC, protected mice from injury to the brain's white matter, a leading cause of dementia. The drug may also be effective in slowing down progression of cognitive impairment.
Researchers found that candesartan reduces accumulation of extracellular matrix proteins and normalizes blood flow in mice with hereditary cerebral small vessel disease. The study suggests a potential new treatment avenue for age-related cerebral arteriopathy.
A USF Health study reveals that fibrinogen can directly interact with neurons, leading to inflammation and neurodegeneration in Alzheimer's disease and traumatic brain injury. The researchers found that blocking the binding of fibrinogen to its receptors may alleviate short-term memory problems associated with these diseases.