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JCI table of contents: Jan. 26, 2009

A study by Wajahat Mehal and colleagues found that aspirin reduces liver damage caused by acetaminophen overdose. In contrast, glucocorticoid therapy may cause varying levels of brain injury in neonates, depending on the type of steroid used. These findings have important implications for treatment strategies.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJan 26, 2009

Biology of Reproduction highlights

Recent studies in Biology of Reproduction suggest that maternal follicular testosterone influences the sex of bovine embryos, while research on maternal cell microchimerism reveals its presence in major organs of healthy newborn mice. These findings highlight the importance of understanding the mechanisms behind these phenomena.

SourceSociety for the Study of Reproduction·JournalBiology of Reproduction·DateApr 21, 2008

Effects of aging in stem cells

Aging hematopoietic stem cells decline in function due to increased inflammatory response and decreased chromatin remodeling, leading to epigenetic dysregulation. Despite this decline, overall blood production remains stable.

SourcePLOS·JournalPLOS Biology·DateJul 23, 2007

Healing the heart with bone marrow cells

Researchers at the University of Toronto have discovered bone marrow adult stem cells play a crucial role in repairing damaged hearts. The 'SOS' distress signal mobilizes these cells to stimulate new blood vessel growth and restore heart function.

SourceUniversity of Toronto·JournalJournal of Clinical Investigation·DateJul 3, 2006

Bone marrow may restore cells lost in vision diseases

Researchers at the University of Florida have found that bone marrow cells can regenerate damaged retinal pigment epithelium (RPE) cells, which play a crucial role in vision health. This breakthrough may lead to new treatments for diseases such as age-related macular degeneration and provide hope for patients with sight-robbing injuries.

SourceUniversity of Florida·JournalInvestigative Ophthalmology & Visual Science·DateJun 8, 2006

Bone marrow cells can become functional gut lining cells

Researchers at Yale University have made a groundbreaking discovery that bone marrow cells can transform into functional gut lining cells after transplantation. This breakthrough has significant implications for the treatment of cystic fibrosis, an inherited disease characterized by mucus buildup in organs.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateMar 2, 2006

Indiana University researchers closer to helping hearing-impaired using stem cells

Researchers at Indiana University have successfully transformed adult bone marrow stem cells into auditory neurons, offering new hope for treating deaf patients. The breakthrough involves the use of Sonic hedgehog and retinoic acid molecules to stimulate the growth of nerve cells in patients with profound hearing loss.

SourceIndiana University·JournalProceedings of the National Academy of Sciences·DateMar 28, 2005

Turning bone into nerve

Researchers successfully induced neuronal cells from bone marrow stromal cells, offering a potential treatment option for neurological disorders. The findings have significant implications for the development of regenerative medicine techniques.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 15, 2004

An alternative to bone-marrow donation

Researchers found that ES cell lines can restore blood cells, including immune systems, in mice without being rejected. This breakthrough has potential advantages over traditional bone marrow or blood donations, offering a renewable source with low risk of graft-versus-host disease.

SourceJournal of Experimental Medicine·JournalJournal of Experimental Medicine·DateMar 29, 2004

Bone marrow stem cells are a source of insulin-producing cells

Researchers have identified bone marrow stem cells with the ability to produce functional insulin-producing cells, offering a new potential avenue for treating diabetes. The study used a molecular biology technique called CRE-loxP to isolate and study these cells, which were found to exhibit characteristics of pancreatic beta cells.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalJournal of Clinical Investigation·DateMar 14, 2003

Bone-marrow cell transplantation could save limbs

Researchers have developed a potential treatment for limb ischemia by injecting bone marrow cells into the affected area, stimulating the growth of new blood vessels. This process can reduce pain and improve ulcer healing rates, offering a promising alternative to surgical interventions.

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 8, 2002

Stem cells guided down blood's developmental pathway

Researchers at University of Wisconsin-Madison successfully directed undifferentiated human embryonic stem cells to become primitive types of blood cells, which later develop into mature blood cells. This breakthrough technology holds promise for creating novel sources of blood cells for transfusion and transplant therapies.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateSep 3, 2001