Oxygen News and Research

RSS

Ageing in neurons follows same rules as in senescing fibroblasts

The ageing process has its roots deep within the cells and molecules that make up our bodies. Experts have previously identified the molecular pathway that react to cell damage and stems the cell's ability to divide, known as cell senescence.

12 Sep 2012

Molecular insight into oxygen sensing mechanism

The study of an oxygen-sensing bacterial regulatory protein by chemistry researchers at the University of Georgia has provided molecular insight into the oxygen sensing mechanism, which could ultimately lead to a better understanding of the ageing process and new treatments for human diseases such cancer, Parkinson's and Alzheimer's.

12 Sep 2012

Inhaled analgesia appears to be effective in reducing pain intensity in first stage of labour

Inhaled pain relief appears to be effective in reducing pain intensity and in giving pain relief in the first stage of labour, say Cochrane researchers.

12 Sep 2012

Serum-concentration of antioxidants is significantly lower in patients with mild dementia

Forgetfulness, lack of orientation, cognitive decline… about 700, 000 Germans suffer from Alzheimer's disease (AD). Now researchers from the University of Ulm, among them the Epidemiologist Professor Gabriele Nagel and the Neurologist Professor Christine von Arnim, have discovered that the serum-concentration of the antioxidants vitamin C and beta-carotene are significantly lower in patients with mild dementia than in control persons.

12 Sep 2012

Researchers discover small DNA sequence that drives GATA2 protein

The protein GATA2 is known as a "master regulator" of blood cell development. When a mutation occurs in the gene that makes GATA2, serious blood diseases such as acute myeloid leukemia can result.

11 Sep 2012

HIF-1 activity directly responsible for spread of breast cancer to lymph vessels

The invasion of cancer cells into the lymph vessels that connect the breast to surrounding lymph nodes is the first step leading to the metastasis, or spread, of cancer throughout the body. Metastasis is the primary cause of breast cancer deaths. Surprisingly little is known about the control of this process and how it might be interrupted to prolong the lives of women with breast cancer.

11 Sep 2012

Combining two drugs may offer new and potent punch against cancer and other diseases

A new study by researchers at Weill Cornell Medical College shows combining two already-FDA approved drugs may offer a new and potent punch against diseases in which blood vessel growth is abnormal -- such as cancer, diabetic retinopathy, macular degeneration and rheumatoid arthritis.

11 Sep 2012

Oxyphenbutazone can kill drug resistant TB

An off-patent anti-inflammatory drug that costs around two cents for a daily dose in developing countries has been found by researchers at Weill Cornell Medical College to kill both replicating and non-replicating drug resistant tuberculosis in the laboratory -- a feat few currently approved TB drugs can do, and resistance to those is spreading.

11 Sep 2012

Insight into how tissue stiffness drives cancer

The stiffness of breast tissue is increasingly recognized as an important factor explaining the onset of breast cancer. Stiffening induces molecular changes that promote cancerous behavior in cells. Bioengineering studies have found that breast cancer cells grown on a 3-D gel have enhanced cell replication and decreased organization as rigidity increases.

10 Sep 2012

Mammalian target of rapamycin inhibitors can prevent radiation-induced tissue damage

Radiation therapy is one of the most widely used cancer treatments, but it often damages normal tissue and can lead to debilitating conditions. A class of drugs known as mammalian target of rapamycin (mTOR) inhibitors can prevent radiation-induced tissue damage in mice by protecting normal stem cells that are crucial for tissue repair, according to a preclinical study published by Cell Press in the September issue of the journal Cell Stem Cell.

7 Sep 2012

Study investigates effects of acidity on breast and pancreatic cancer cell lines

Researchers at Moffitt Cancer Center and colleagues at the University of South Florida and Wayne State University have discovered that tumor cell survival relies on adaptation to acidic conditions in the tumor microenvironment.

7 Sep 2012

DNA synthesis methods: an interview with Clemens Richert

Automated DNA synthesis has been around for almost three decades. The key difference between the established methodology for making oligodeoxynucleotides (short stretches of single-stranded DNA) and our method is the template strand.

7 Sep 2012

Lack of Atoh1 master gene can lead to sudden infant death syndrome

When mice are born lacking the master gene Atoh1, none breathe well and all die in the newborn period. Why and how this occurs could provide new answers about sudden infant death syndrome (SIDS), but the solution has remained elusive until now.

7 Sep 2012

Reduced NF-κB expression linκed to postradiation oral mucosa vulnerability

The fragility of oral mucosa after radiotherapy for oral squamous cell carcinoma may be due to the inhibition of the DNA transcriptor protein nuclear factor κappa-light-chain-enhancer of activated B cells, show study findings.

6 Sep 2012

Preliminary research findings from Kessler Foundation’s Ekso device study on SCI

Kessler Foundation has released preliminary research findings from its clinical study of the wearable robotic exoskeletal device, Ekso. Gail Forrest, PhD, assistant director of Human Performance and Engineering Research, presented the Ekso research data on September 3, at the meeting of the Academy of Spinal Cord Injury Professionals at the Rio Suites in Las Vegas. Dr. Forrest directs mobility research at the Foundation, including activity-based locomotor therapy, functional electrical stimulation, and treadmill training with the LokomatPro v6, as well as Ekso.

6 Sep 2012

Researchers identify HIF2α gene mutation in cancer tumor cells

For the first time, a mutation in HIF2α, a specific group of genes known as transcription factors that is involved in red blood cell production and cell metabolism, has been identified in cancer tumor cells.

6 Sep 2012

TSC and PTEN genes important in controlling blood precursor cells in Drosophila

UCLA stem cell scientists have shown that two common tumor suppressor genes, TSC and PTEN, are vital to regulating the stem cell-like precursor cells that create the blood supply in Drosophila, the common fruit fly.

6 Sep 2012

Sleep apnoea severity associated with increased cancer mortality

Sleep apnoea severity has been associated with increased cancer mortality in a new study.

5 Sep 2012

Closing large intracardiac shunts does not improve sleep apnea

Clinically significant shunting of blood through a patent foramen ovale is more common among patients with severe obstructive sleep apnea than in the general population, study findings indicate.

4 Sep 2012

Morphological changes occur rapidly in response to cardiac injury

Cardiac injury leads to significant structural changes in the heart, including enlargement, excess formation of fibrous growth tissue, and abnormalities of the coronary vasculature. While associated factors have been targeted for therapeutic intervention, the results have been conflicting. Most studies have investigated these changes after six days of injury. However, advanced stages of remodeling have already begun by day seven following injury.

4 Sep 2012