Hypoxia News and Research

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Hypoxia is a condition in which there is a decrease in the oxygen supply to a tissue. In cancer treatment, the level of hypoxia in a tumor may help predict the response of the tumor to the treatment.

A global study to determine COVID-19 health and psychosocial consequences

The current paper lays out the details of a longitudinal study that aims to follow up COVID-19 patients, including any pre-existing chronic illnesses as well as the medical care they received during their illness. A significant minority of convalescents appears to have prolonged disease sequelae.

3 Sep 2020

Study: BIRC2 overexpression could be a key marker for immunotherapy resistance

Johns Hopkins Medicine researchers have added to evidence that a gene responsible for turning off a cell's natural "suicide" signals may also be the culprit in making breast cancer and melanoma cells resistant to therapies that use the immune system to fight cancer.

2 Sep 2020

Evidence of SARS-CoV-2 coronavirus particles in heart tissue

Researchers in Milan, Italy, have identified the presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the heart tissue of deceased coronavirus disease 2019 (COVID-19) patients who had died from respiratory failure, without showing any signs of cardiac involvement.

27 Aug 2020

Children born at high altitude smaller at birth and have stunted growth

A new study released this week by Ethiopian researchers shows that children who are born at higher altitudes, such as 1,500m (4,921 ft) above sea level, are more at risk of being smaller at birth and have a stunted growth compared to their counterparts born at lower altitudes. The research is published in the latest issue of the journal JAMA Pediatrics.

25 Aug 2020

Living at higher altitudes linked with greater rates of stunting

Residing at higher altitude is associated with greater rates of stunting, even for children living in "ideal-home environments" according to a new study from researchers at the International Food Policy Research Institute and Addis Ababa University.

24 Aug 2020

COVID-19 causes significant dilation of lung blood vessels, indicates study

A new pilot study from the Icahn School of Medicine at Mount Sinai suggests that COVID-19 is causing significant dilation of the blood vessels of the lung, specifically the capillaries.

21 Aug 2020

COVID-19 patients with hypoxia respond positively to a treatment, study shows

Covid-19 patients with hypoxia respond positively to icatibant treatment, Radboud university medical center researchers wrote in JAMA Network Open.

19 Aug 2020

ARDS may not be the primary lung iInjury in COVID-19

A new Italian study published on the preprint server medRxiv in August 2020 shows that this may not be an adequate explanation, since ARDS is a nonspecific diagnosis. Instead, they say, antemortem lung biopsy shows a “Covid pattern” of acute lung injury, which could guide the application of therapeutics.

16 Aug 2020

Cardiovascular disease in COVID-19

The current COVID-19 pandemic is a primarily respiratory illness, manifesting with severe hypoxia and often progressing to acute respiratory distress syndrome (ARDS) and death. However, it is also known to be linked to a wide range of cardiovascular (CV) manifestations that are associated with a very poor prognosis.

13 Aug 2020

Oxygen-deprived breast cancer cells send out messages that promote cancer progression

According to a study by The Wistar Institute, breast cancer cells starved for oxygen send out messages that induce oncogenic changes in surrounding normal epithelial cells.

11 Aug 2020

COVID-19 patient with repeatedly undetectable SARS-CoV-2 antibodies

A recent case study published in the Journal of Applied Laboratory Medicine in August 2020 illustrates this with its finding of persistent seronegativity in a patient confirmed to be SARS-CoV-2 positive.

10 Aug 2020

High altitude may act as a protective factor against COVID-19

The analysis by researchers from Spain and Peru reveals that high altitude confers significant protection from coronavirus disease (COVID-19) infection and death – independent of the distance from the pandemic epicenter, population density, or poverty levels. The study is currently available on the medRxiv preprint server.

5 Aug 2020

Lower incidence of COVID-19 in high-altitude residents is intriguing, but requires more research

Despite recent reports of lower COVID-19 incidence among high-altitude populations, current data is insufficient to conclude that high altitude is protective against the SARS-CoV-2 virus, as reported in the peer-reviewed journal High Altitude Medicine & Biology.

4 Aug 2020

Research explains recognized sex differences in COVID-19 outcomes

The COVID-19 pandemic has notably taken a more significant toll on men compared to women, in terms of both disease severity and death. Now, a new study by researchers at the Icahn School of Medicine at Mount Sinai and published on the preprint server medRxiv in August 2020 confirms the increased risk that males have for death following COVID-19 while also highlighting worse outcomes in women with coronary artery disease, obesity, and hypoxia compared to men.

3 Aug 2020

First 3D multicellular brain organoid can screen drugs to control inflammation

The scientists who developed the first 3D multicellular brain organoid with a functional blood brain barrier now report that the model could be a promising platform to screen drugs that could work to control inflammation, which is at the center of many neurological conditions, like ischemic stroke.

30 Jul 2020

Study shows promise of a major breakthrough in healing chronic diabetic ulcers

A new study released today in STEM CELLS Translational Medicine shows promise of a major breakthrough in healing chronic foot ulcers resulting from diabetes.

28 Jul 2020

New studies indicate the presence of cerebrovascular-neurological dysfunction in COVID-19 patients

As the SARS-CoV-2 virus, or COVID-19 has unfurled its tentacles across the globe, the severe respiratory and pulmonary disorders associated with the infection have become well known.

22 Jul 2020

COVID-19 associated with serious blood clots in leg arteries

COVID-19 is associated with life-threatening blood clots in the arteries of the legs, according to a study published in Radiology.

16 Jul 2020

Evidence of SARS-CoV-2 placental infection in mild COVID-19

Now, a new study published on the preprint server medRxiv* in July 2020 reveals evidence of placental infection and hypoxia, despite the lack of serious symptoms in the mother.

16 Jul 2020

Buck researchers investigate ketone bodies as possible therapeutic against COVID-19

Given the disproportionate impact that COVID-19 has on older adults in terms of death and lasting disability, and the impact of common aging-related comorbidities like diabetes and cardiovascular disease, Buck Institute professor and practicing geriatrician John Newman, MD, PhD, can make a compelling argument that those infected with the SARS-CoV2 virus are suffering from an aging-related disease, no matter how old they are when they get infected.

15 Jul 2020