Articles tagged with Pathophysiology
A study from The University of Osaka reveals a molecular pathway connecting liver congestion to liver fibrosis, portal hypertension, and liver tumorigenesis. Researchers identified increased activity of YAP and CTGF in liver sinusoidal endothelial cells as key molecules involved in this signaling pathway.
A new review highlights the cytokine storm's key role in lung injury and multi-organ dysfunction in acute respiratory distress syndrome (ARDS). The review emphasizes biological heterogeneity, subphenotypes, and the need for biomarker-guided patient stratification.
Professor Kazuya Yamagata received the 2025 Erwin von Bâlz Prize Second Prize for his groundbreaking research on pancreatic Ò-cell transcription factors and their role in monogenic diabetes. His work significantly deepens our understanding of β-cell function and diabetes pathophysiology.
A study of over 500 survivors found severe psychological trauma with somatic symptoms persisting decades after the attack. The results highlight the need for culturally sensitive mental health services, compensation, and ongoing care for chemical attack survivors.
Researchers summarize advances in multi-target therapies addressing Alzheimer's disease pathology, including Amyloid-beta, tau, neurodegeneration, and cerebrovascular injury. Despite promising preclinical evidence, single-target strategies have shown limited efficacy in clinical trials.
A new clinical trial found that feeding blueberries to infants as their first solid food can reduce allergy symptoms and support long-term health. The study suggests early introduction of blueberries may improve infants' immune systems and gut health.
Research in Brazil found that glycemic delta, a measure of blood sugar variability, is associated with the size of the heart attack and the strength of heart contractions. The study suggests that high glycemic delta may be a biomarker for worse outcomes in patients who have experienced their first acute myocardial infarction.
Exposure to PM2.5 air pollutants impairs mucociliary clearance, a key protective mechanism in the respiratory tract, leading to severe airway damage and respiratory diseases. Researchers have identified the enzyme ALDH1A1 as a potential therapeutic target to reverse this damage and strengthen our respiratory defenses.
Researchers at The University of Osaka found that localized oxygen deficiency in colon tumors can promote tumor growth by transforming normal fibroblasts into inflammatory fibroblasts. These altered cells release factors that help tumors grow, offering a potential new target for cancer therapy.
Researchers developed a novel rat model that closely replicates human COPD-associated cor pulmonale, exhibiting chronic lung inflammation, pulmonary hypertension, and right ventricular hypertrophy. The model provides insights into the underlying mechanisms of disease progression and potential therapeutic targets.
A new study published in JAMA Ophthalmology found that lifestyle changes after COVID-19 were associated with an increase in the prevalence and severity of child astigmatisms. The potential impact of higher degrees of astigmatism may warrant dedicated efforts to elucidate the relationship between environmental and/or lifestyle factors.
The review explores the pathophysiological mechanisms linking obstructive sleep apnea syndrome and metabolic syndrome, highlighting recent advancements in therapeutic strategies. Treatment approaches aim to break the harmful cycle between OSA and MetS, which affects approximately 14% of the global population.
A review of cell death and aging in cancer research reveals the significance of cellular senescence in promoting cancer growth. The study highlights the potential of various types of programmed cell death, such as necroptosis and pyroptosis, as therapeutic targets against senescent cells.
A systematic literature search identified high-priority clinical actions for post-acute care, including early education, risk assessment, and mental health screening. Implementing these actions can improve the quality of care for non-hospitalized TBI patients.
A scoping review found associations between myositis disease activity and gluten exposure in patients with inflammatory myopathies and celiac disease. The study suggests that gluten may act as an exogenous antigen driving myositis in genetically predisposed patients.
Researchers comprehensively reviewed cerebellar involvement in Parkinson's disease, highlighting the pathophysiological role of the cerebellum in motor and non-motor symptoms. Studies showed abnormal α-synuclein aggregation, neurodegeneration, and altered functional connectivity between the cerebellum and other brain regions.
A new library of healthy participants' neuroimaging data has been created to aid in the diagnosis and treatment of traumatic brain injury (TBI). The Normative Neuroimaging Library consists of data from approximately 1900 individuals, providing a comprehensive dataset for clinicians and researchers.
Pediatric functional gastrointestinal disorders are complex conditions with a significant impact on children's health and quality of life. The ROME IV criteria facilitate earlier and more accurate diagnosis, while a multidisciplinary approach to management offers hope for improved outcomes.
A recent study published in Allergy found that COVID-19 leads to long-term changes in the immune system, even in mild cases. The research team identified significant reductions in immune cells and alterations in cytokine levels, suggesting an impaired immune response to new challenges.
Researchers discovered that inhibiting estrogen receptor alpha in adipocytes can rescue bone loss and promote osteogenesis. This approach has potential as a therapeutic target for treating osteoporosis and preventing bone loss.
Researchers found cyclin D1 expression in patients with penile cancer (PC) is associated with clinical and histopathological features. Patients with cyclin D1 expression had lower disease-free survival compared to the cyclin D1-negative group.
Almost 90% of U.S. adults met criteria for cardiovascular, kidney, and metabolic syndrome (CKM) stage 1 or higher, with 15% meeting advanced stage criteria that did not improve between 2011 and 2020. Advanced stages were associated with increased risk among older age, men, and Black adults.
Researchers at NeuRA and UniSA found that early detection and comprehensive treatment can lead to significant recovery for most people with Complex Regional Pain Syndrome (CRPS) within 12-18 months. The study reviews the latest advances in CRPS epidemiology, pathophysiology, diagnosis, and treatment.
Researchers identify TRMT10C enzyme causing methylation of ND5 mRNA, leading to mitochondrial dysfunction and reduced energy supply to the brain. Impairment of complex I in the respiratory chain contributes to Alzheimer's disease pathology.
A study by researchers at University Medical Center Mainz found that tickling can be a form of sexual expression for some adults, satisfying them sexually and even triggering orgasms. Childhood experiences and mutual trust are key factors in this phenomenon.
A team of researchers from Texas Heart Institute and Baylor College of Medicine have made a significant discovery about the underlying molecular cell states within transplanted pediatric hearts. They found that donor-derived tissue-resident macrophages are crucial for graft acceptance, but their loss leads to allograft failure.
Zarbio and Georgia State University scientists propose a framework for understanding Alzheimer's disease, linking molecular mechanisms, beta-amyloid biomarkers, and diagnosis. The Amyloid Degradation Toxicity Hypothesis resolves long-standing paradoxes in AD research.
The September issue of the CHEST journal features research on long COVID, including a review on exercise pathophysiology in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome and Postacute Sequelae of SARS-CoV-2. Original studies also explore asthma treatment with albuterol-budesonide inhalers and sleep therapy using oronasal masks.
Mutations in parkin gene break down contacts between lysosomes and mitochondria, disrupting essential metabolite supply to mitochondria. Restoring these contacts may represent a new therapeutic opportunity for Parkinson’s disease.
Aneurysmal subarachnoid hemorrhage-related hydrocephalus is a complex syndrome that can lead to cognitive impairment and neurological damage. The new consensus guideline recommends standard-of-care approaches, including history review, head CT scans, and medications or surgical interventions to manage excessive intracranial pressure.
Researchers identified 37 symptoms across multiple pathophysiological domains that are more common in SARS-CoV-2 infected participants at six months post-infection. A preliminary rule for identifying postacute sequelae of SARS-CoV-2 infection (Long COVID) was derived from a composite symptom score and requires further refinement.
A study found that excitatory-inhibitory imbalance, characterized by higher glutamate levels and lower GABA levels, precedes psychosis in individuals with 22q11.2 deletion syndrome. This imbalance is associated with hippocampal atrophy and cognitive decline.
Researchers uncover a pathophysiological mechanism that initiates and sustains neuropathic pain in mice, identifying Tiam1 as a potential therapeutic target. Targeting spinal Tiam1 with antisense oligonucleotides alleviates neuropathic pain hypersensitivity, offering promise for treating chronic pain.
A study by IMBA researchers links muscle degeneration to a deficiency in the enzyme PCYT2, essential for lipid synthesis. PCYT2 depletion affects mitochondrial function and muscle energetics, highlighting the importance of lipid balance in muscle health.
A research team from MedUni Vienna found that only neutralizing antibodies can inform us about protection against new infections. The study discovered a previously unknown weak point of the virus, which is a conserved site on the surface of the virus.
A recent study analyzed 7,301 metastatic breast cancer patients with MTAP loss, revealing younger age, higher TNBC cases, and BRCA1 mutations. The findings also suggest potential therapeutic agents targeting PRMT5 and MTA2 in MTAP-deficient cancers.
A comprehensive European allergy atlas has been compiled, revealing regional and climate-related differences in sensitisation to allergens. The study found varying sensitisation patterns across Europe, with certain regions having lower sensitivity to house dust mites and higher sensitivity to peanut and fruit allergens.
A new study published in The American Journal of Pathology suggests that promoting autophagy with rapamycin restores intestinal barrier function during sepsis. The study also identifies the PLK1-mTOR axis as a crucial regulator of autophagy and intestinal barrier dysfunction, providing novel insights for treatment of sepsis.
Researchers analyzed MRI images of Olympic athletes' injuries during the 2020 Tokyo Games and found that those with tendon tears were more likely to drop out. The study aims to improve injury management and prevention by understanding different types of muscle injuries and their outcomes.
Researchers used microCT to create a 3D atlas of lung lesions in TB and COVID-19, revealing complex shapes and hidden pathological structures. The study provides new insights into the microscopic anatomy of these deadly diseases.
Researchers reveal the dynamic nature of RNA molecules, which can take on multiple shapes and regulate cellular processes. The 'RNA structurome' holds key to understanding disease mechanisms and developing new therapeutic strategies.
A new review article aims to improve the impact of human islet research on type 2 diabetes treatment by addressing challenges and proposing solutions. The study highlights the importance of standardizing islet collection and analysis protocols to accelerate progress in understanding T2D.
Researchers identified critical period plasticity in the amygdala that can be treated with therapeutic intervention at key developmental time points. Early pharmacological intervention was shown effective in reducing fear-learning in the mouse model.
Researchers from China have developed a novel bioconjugate that can suppress the growth of K-Ras mutant pancreatic tumors. The conjugate, which targets folate receptors and macropinocytosis, was found to be highly cytotoxic and effective at suppressing tumor growth.
Scientists demonstrate a definitive link between mitochondrial oxidative damage and cognitive dysfunction in Alzheimer's disease using a transgenic mouse model. The study found that Aβ1-42 aggregation in the hippocampus caused cognitive impairment, while oxidation led to mitochondrial dysfunction.
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.
Recent clinical and experimental data suggest that vascular calcification and bone loss share common pathophysiological mechanisms. The International Osteoporosis Foundation's new review elucidates the key associations between the two disorders.
Researchers at Tokyo University of Science discover that vicarious social defeat can cause psychological stress in mice, leading to depression and decreased neurogenesis. The study sheds light on the pathophysiology of depression and may lead to the development of novel antidepressants.
A multicenter randomized trial showed acupuncture improved symptoms of moderate to severe CP/CPPS, with effects lasting over 24 weeks. Acupuncture was more effective than sham therapy in reducing symptoms and improving quality of life for men with chronic prostatitis/chronic pelvic pain syndrome.
Researchers identified predictive molecular biomarkers for non-response to anti-TNF and anti-integrin therapies in UC. Biomarkers in innate and adaptive immune systems, as well as proteolytic degradation, were found to be predictive of therapy non-response.
Research shows spousal concordance is strongest for behavioral risk factors like diet and physical activity, while pathophysiological factors show weaker concordance. Couples with similar dietary habits and high-intensity exercise tend to have lower type 2 diabetes risk.
A study found that a single dose of yellow fever vaccine may not offer lasting protection to all children, with levels of protective antibodies decreasing substantially over time. The research suggests that booster shots may be necessary for young children, and maintaining immunity is crucial for preventing epidemics.
Chronic stable angina affects approximately 10 million Americans, primarily older adults and women. Common comorbidities like diabetes are associated with poorer outcomes in this subgroup. The study highlights the growing prevalence of recurring ischemia, its socioeconomic burden, and therapeutic targets for management.
This special issue of Cardiovascular Innovations and Applications Journal covers key aspects of stable ischemic heart disease, including contemporary management strategies and epidemiology. The collection of reviews and commentary provides insights into the latest research and clinical practices for this condition.
A collection of 27 papers has been compiled to better understand the pathophysiology of endocrinopathic laminitis in horses. The research highlights the key role of insulin dysregulation and equine metabolic syndrome in driving the condition.
The bellygenes initiative is a large-scale genetic project studying the genetic makeup of 800,000 Europeans in relation to irritable bowel syndrome. The study aims to reveal pathophysiological pathways that can help explain IBS etiology and inform molecular reclassification of patients.
Researchers found that certain lipid mediators can delay the onset and progression of heart failure. The lack of standard drugs stimulating these mediators suggests a need for re-evaluation of current treatment protocols to improve disease outcomes.
Organs-on-chips reconstitute functional interfaces between living tissues, enabling complex organ-level functions and insights into human pathophysiology. Researchers use these devices to study communication in biology and develop personalized medicine.
Muscle wasting occurs rapidly in critically ill patients, with significant skeletal muscle weakness and physical disability persisting for at least 5 years. Early interventions to enhance anabolism may be required to limit or prevent muscle loss.
The International Osteoporosis Foundation provides guidance on screening strategies for osteoporosis in young adults, emphasizing the need for caution in diagnosis and treatment. The review highlights the importance of distinguishing between low bone mass and skeletal fragility in this age group.