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JCI table of contents, May 15, 2003

Scientists have made significant discoveries in the treatment of sinus node dysfunction, lupus, and cardiac failure, while also uncovering new mechanisms for bacterial defense and asthma treatment. These findings hold promise for developing more effective therapies.

American Thoracic Society Journal news tips for April 2003 (second issue)

German researchers found oral sildenafil improves hemodynamics and exercise capacity in patients with chronic thromboembolic pulmonary hypertension. A study also revealed African-American children have a much higher hospital readmission rate for asthma, over four times that of other races/ethnicities.

UCSD researchers identify gene pathway causing pulmonary hypertension

Researchers at UCSD identified a key gene pathway contributing to pulmonary hypertension, with potential molecular targets for new therapies. The study revealed that abnormal expression of angiopoietin-1 leads to muscle cell proliferation in lung vessels, causing disease progression.

Viagra for alleviation of pulmonary hypertension?

A randomized controlled trial found that sildenafil reduced pulmonary blood resistance, a key indicator of pulmonary hypertension. The study suggests sildenafil could be a promising candidate for long-term treatment of secondary pulmonary hypertension in lung fibrosis. Controlled trials are needed to confirm the findings.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

American Thoracic Society Journal news tips for April (second issue)

A recent study found that stress increases anxiety and depression scores in college students with mild allergic asthma, leading to enhanced airway inflammation. In contrast, intravenous sildenafil reversed vascular resistance in an animal model of neonatal pulmonary hypertension, offering new hope for treating this serious condition.

Early promise for treatment of pulmonary hypertension

Researchers investigated bosentan's effectiveness in treating patients with severe pulmonary hypertension. Bosentan improved cardiopulmonary haemodynamics and reduced pulmonary artery pressure in patients compared to placebo.

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Gene discovered for primary pulmonary hypertension

Researchers have identified a bone morphogenetic protein receptor II gene mutation as the cause of familial primary pulmonary hypertension, a progressive condition characterized by constriction of blood vessels. The discovery could lead to earlier diagnosis and more effective treatments for both familial and sporadic forms of PPH.