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Cutting back on sugary drinks may protect men’s fertility, review finds

Regular consumption of sugar-sweetened beverages is associated with lower sperm count, motility, and increased DNA damage, potentially impairing male reproductive health. This narrative review highlights dose-response effects, mechanisms, and research gaps, calling for further studies on diverse populations.

22 May 2025

Endurance training leads to significant drops in vascular resistance and diastolic blood pressure

Eight months of supervised marathon training in Finnish adults led to moderate reductions in peripheral diastolic blood pressure, systemic vascular resistance, and extracellular water volume. Central (aortic) blood pressure showed a non-significant decline, highlighting the specific impact of exercise on vascular health.

22 May 2025

Cysteine depletion triggers rapid weight loss in mice

Mice genetically engineered to lack the ability to make the amino acid cysteine, and fed a cysteine-free diet, lost 30 percent of their body weight in just one week, a new study shows.

22 May 2025

Oxygen deficiency in the colon cancer microenvironment can promote tumor growth

To effectively battle cancer, scientists must study the battlefield. Now, in a recent study published in Nature Communications, a multi-institutional research team including The University of Osaka has discovered some crucial intel: localized oxygen deficiency in the colon cancer microenvironment can promote tumor growth.

21 May 2025

Exploring the link between microbial balance and aging mechanisms

Aging is a multifaceted process driven by interconnected biological mechanisms, among which genomic instability and telomere attrition stand as primary hallmarks.

20 May 2025

Nanozymes offer promise for treating inflammation during pregnancy

Special care must be taken with illnesses during pregnancy, as not all drugs are compatible for mother and child.

20 May 2025

Air pollution fuels artery damage and accelerates heart disease, review finds

Researchers reviewed how air pollution, especially fine particulate matter (PM2.5), drives the development and worsening of atherosclerosis, a leading cause of heart attacks and strokes. Their findings highlight robust links between air pollution exposure, early artery changes, and underlying biological mechanisms fueling cardiovascular risk.

19 May 2025

Sucralose disrupts male fertility by damaging sperm and altering hormones in animal study

Researchers found that chronic sucralose exposure in male rats disrupted reproductive hormones, damaged sperm, and impaired testicular function through oxidative stress and autophagy dysregulation. These findings raise concerns about the reproductive risks of high sucralose intake and its persistent presence in the environment.

19 May 2025

Light-activated immunotherapy approach could one day treat people with advanced stomach cancer

University of Texas at Dallas bioengineers, in collaboration with UT Southwestern Medical Center researchers, are developing an enhanced light-activated immunotherapy approach that could one day treat patients with stomach cancer that has spread throughout the abdomen.

19 May 2025

Ciliary dynamics may play a role in the pathophysiology of bronchopulmonary dysplasia

Premature infants are at risk of bronchopulmonary dysplasia, or BPD, a type of lung injury associated with increased mortality.

19 May 2025

Red blood cells drive blood vessel damage in diabetes by exporting toxic vesicles

Red blood cell-derived extracellular vesicles in type 2 diabetes are actively taken up by the endothelium, transferring the enzyme arginase-1 and triggering oxidative stress. This mechanism helps explain vascular complications in diabetes and offers new targets for therapeutic intervention.

19 May 2025

Zebrafish study reveals hidden dangers of environmental toxins from tires

Emerging contaminants from rubber tires N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) and its oxidation product 6PPD-quinone (6PPDQ)-are raising new red flags for aquatic ecosystems.

19 May 2025

EMA designates allopurinol as first orphan drug for the treatment of Marfan syndrome

The European Medicines Agency (EMA) has designated allopurinol as the first orphan drug for the treatment of Marfan syndrome, a rare connective tissue disease which as no cure to date.

19 May 2025

Repeated antibiotics in preterm infants linked to long-term lung problems

Repeated perinatal antibiotic exposure in very low-birth-weight preterm infants was associated with impaired lung function and a higher risk of asthma at early school age. The findings underscore the need for cautious antibiotic use and targeted respiratory health strategies in this high-risk group.

18 May 2025

Targeting PME-1 may offer new strategies for treating neurological disorders and cancer

PME-1 is a protein that modifies other proteins by removing methyl groups, but high levels of PME-1 are observed in some diseases, including Alzheimer's disease (AD) and cancer.

16 May 2025

Lower fitness before infection raises risk of long COVID, study finds

Adults who later developed long COVID had lower cardiorespiratory fitness (CRF) before infection than those who did not. COVID-19 was not linked to accelerated or clinically significant declines in CRF, even among long COVID cases.

15 May 2025

Palliative care for cardiovascular conditions may help relieve symptoms and improve quality of life

Palliative care may help relieve symptoms and improve quality of life for people with cardiovascular disease and ensure that treatment is aligned with the patient's personal beliefs and values throughout all stages of illness, whether they are hospitalized in a cardiac intensive care unit or receiving outpatient care, according to a new American Heart Association scientific statement published today in the Association's flagship, peer-reviewed journal Circulation.

15 May 2025

Prisons routinely ignore guidelines on dying inmates’ end-of-life choices

Brian Rigsby was lying with his right wrist shackled to a hospital bed in Montgomery, Alabama, when he learned he didn't have long to live.

15 May 2025

Air travel disrupts DNA repair in flight crew, raising cancer concerns

Researchers found that flight attendants show reduced DNA repair capacity and immune changes after air travel, which may help explain their higher cancer risk.

14 May 2025

Predictive tools aim to improve pediatric pneumonia outcomes

Researchers derived pragmatic models that accurately distinguish mild, moderate and severe pneumonia in children, based on evidence from a study performed in 73 Emergency Departments (EDs) in 14 countries through the international Pediatric Emergency Research Network (PERN).

14 May 2025

Oxygen News and Research

Cutting back on sugary drinks may protect men’s fertility, review finds

Endurance training leads to significant drops in vascular resistance and diastolic blood pressure

Cysteine depletion triggers rapid weight loss in mice

Oxygen deficiency in the colon cancer microenvironment can promote tumor growth

Exploring the link between microbial balance and aging mechanisms

Nanozymes offer promise for treating inflammation during pregnancy

Air pollution fuels artery damage and accelerates heart disease, review finds

Sucralose disrupts male fertility by damaging sperm and altering hormones in animal study

Light-activated immunotherapy approach could one day treat people with advanced stomach cancer

Ciliary dynamics may play a role in the pathophysiology of bronchopulmonary dysplasia

Red blood cells drive blood vessel damage in diabetes by exporting toxic vesicles

Zebrafish study reveals hidden dangers of environmental toxins from tires

EMA designates allopurinol as first orphan drug for the treatment of Marfan syndrome

Repeated antibiotics in preterm infants linked to long-term lung problems

Targeting PME-1 may offer new strategies for treating neurological disorders and cancer

Lower fitness before infection raises risk of long COVID, study finds

Palliative care for cardiovascular conditions may help relieve symptoms and improve quality of life

Prisons routinely ignore guidelines on dying inmates’ end-of-life choices

Air travel disrupts DNA repair in flight crew, raising cancer concerns

Predictive tools aim to improve pediatric pneumonia outcomes

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