Blood levels of microRNA — small RNA molecules that regulate protein production — are decreased in people with pulmonary embolism (PE) compared with healthy people. PE is the cause of chronic thromboembolic pulmonary hypertension (CTEPH). However, higher blood levels of miR-let7a were found in people with acute PE who…

People with pulmonary hypertension (PH) and high blood acetylcholine (ACh) levels show more severe symptoms and a poorer prognosis than those with lower ACh levels, a single-center study in China suggests. ACh is a neurotransmitter, a chemical messenger that allows nerve cells to communicate…

Two genes were identified as potential drivers of pulmonary arterial hypertension (PAH) in a bioinformatics study, offering opportunities to better understand the disease and explore their use as biomarkers or therapeutic targets. The genes, called WDR43 and GNL2, were more active in the lungs of people with PAH than…

The ARRDC3 gene — implicated in inflammation and cell growth — may be a ferroptosis-related biomarker and treatment target in chronic thromboembolic pulmonary hypertension (CTEPH), according to a new study. Ferroptosis is an iron-dependent type of cell death involved in the damage of lung blood vessels and in lung…

The pulmonary hypertension (PH) community will be busy raising awareness and funds for research this November as they recognize Pulmonary Hypertension Awareness Month.   Leading these efforts is the Pulmonary Hypertension Association (PHA), the country’s oldest and largest nonprofit dedicated to the PH community. The…

The matrix around the heart’s cells does not shrink and may continue to undergo changes after pulmonary endarterectomy, or PEA, a surgery to remove blood clots from the pulmonary arteries that supply the lungs, a small study found. Researchers suggest that fibrosis, or scarring, may explain why the heart’s size…

Treatment with treprostinil improved the risk profile in people with inoperable or persistent severe chronic thromboembolic pulmonary hypertension (CTEPH). The risk profile was assessed using a risk score established to predict a response to treatment and survival in people with pulmonary arterial hypertension (PAH), the most common type…

A Phase 3 clinical trial testing high-dose Opsumit (macitentan) in people with chronic thromboembolic pulmonary hypertension (CTEPH) has ended early after an analysis showed the treatment is unlikely to help patients. The announcement was made in a press release from Janssen, the company that markets Opsumit. Opsumit…

Certain proteins implicated in the immune response and inflammation showed a potential to serve as blood biomarkers of pulmonary arterial hypertension (PAH) in a recent study. A possible diagnostic biomarker was seen in the TNF‐related apoptosis‐inducing ligand (TRAIL) protein. It demonstrated an ability to distinguish PAH patients not only…

Long COVID syndrome can be common among people with pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH), affecting more than 60% of patients infected with the SARS-CoV-2 virus in a study from Poland. Despite the persistence of COVID-19 symptoms, no change was evident in the patients’ risk of…

Developing chronic thromboembolic pulmonary hypertension (CTEPH) within two years after a venous thromboembolism (VTE), which occurs when a blood clot forms in a vein, nearly doubles the risk of long-term death, according to a large study from Denmark. Researchers also observed that all types of pulmonary hypertension (PH)…

MRE-269, an active metabolite of Uptravi (selexipag), is more effective at stopping the growth of lung cells from people with chronic thromboembolic pulmonary hypertension (CTEPH) than it is in healthy lung cells, a study found. Researchers also discovered that MRE-269 may do this by increasing the activity of ID1…