Science stories

Read recently highlighted science stories.

 
11/20/2009
Personality an important predictor of coping with cancer stress

Children with anxious personalities are more likely to experience symptoms of post-traumatic stress than childhood cancer survivors, St. Jude researchers report.

 
 
11/12/2009
Research reveals lipid’s unexpected role in triggering death of brain cells

St. Jude Children’s Research Hospital scientists lead effort that reveals new details linking lipid build-up with catastrophic calcium imbalance in brain cells of patients with rare, inherited disorder.

 
 
11/09/2009
St. Jude Children’s Research Hospital and UF Proton Therapy Institute to begin proton therapy clinical trial

St. Jude Children’s Research Hospital and the University of Florida Proton Therapy Institute have formed a collaboration to provide proton therapy for St. Jude patients. The announcement follows the approval of the first clinical study to evaluate the use of proton therapy for rare brain cancers in children younger than 3 years old.

 
 
11/09/2009
Study targets stroke prevention in children with sickle cell anemia

St. Jude investigators were recently awarded a $23 million federal grant to launch a national study of the drug hydroxyurea to prevent first strokes in children and adolescents with sickle cell anemia.

 
 
11/02/2009
Hematologist Arthur Nienhuis named 2009 ASH Mentor Award recipient

Arthur Nienhuis, M.D., of St. Jude Children’s Research Hospital, is the recipient of the 2009 Mentor Award from the American Society of Hematology (ASH).

 
 
10/19/2009
New chromosomal abnormality identified in leukemia associated with Down syndrome

Researchers identified a new chromosomal abnormality in acute lymphoblastic leukemia (ALL) that appears to work in concert with another mutation to give rise to cancer. This latest anomaly is particularly common in children with Down syndrome.

 
 
10/16/2009
St. Jude welcomes back survivors for 13th annual event

The heart of the 13th Annual St. Jude Cancer Survivors Conference was sandwiched between an opening night of karaoke and a Saturday afternoon carnival with 138 childhood cancer survivors accompanied by 320 family members taking part this year.

 
 
10/12/2009
Immune cell entry is key to understanding origins of type 1 diabetes

St. Jude investigators have discovered how destructive immune cells gain access to insulin-producing cells and help cause diabetes.

 
 
10/05/2009
Quest to understand APC identifies small protein’s key stabilizing role

Four years after Brenda Schulman, PhD, Structural Biology and Genetics and Tumor Cell Biology, set out to explore the universe within the APC, her team recently sent back its first dispatch from the frontier.

 
 
09/28/2009
Biomedical symposium attracts world leaders in apoptosis research

Cell death and survival will be the focus when the Fifth Annual St. Jude Biomedical Research Symposium opens Monday, October 5, with a talk by the scientist who led work on an experimental drug that aims to get cancer cells to self destruct.

 
 
09/28/2009
Genetic predisposition plays role in severity of illness following H5N1 infection

Patients with the genetic foundation to marshal an efficient, rapid response to the H5N1 influenza virus are more likely than others to survive the bird flu, according to a team led by St. Jude investigators.

 
 
09/21/2009
Childhood acute lymphoblastic leukemia – a modern cancer success story

Advances in diagnosis and treatment mean more children are living longer with cancer than ever before, with about 270,000 childhood cancer survivors alive today nationwide. Despite these advances, cancer remains the leading cause of death due to disease among U.S. children over one year of age.

 
 
09/10/2009
Researchers identify gene pivotal for immune system balance

A team led by St. Jude researchers recently identified a gene pivotal for immune system balance. Ultimately, the discovery may aid efforts to tame allergies and asthma.

 
 
09/04/2009
Scientists advance a two-gene approach to curing beta-thalassemia

A St. Jude team successfully introduced two new genes into blood-producing bone marrow stem cells in an effort to ease beta-thalassemia in mice and reduce treatment side effects.

 
 
08/27/2009
Outpatient chemotherapy orders go digital, advancing move to electronic record

St. Jude took another step in the shift from paper to electronic health records August 19 when chemotherapy orders from the Solid Tumor Clinic stopped coming in by fax and began arriving in the pharmacy electronically.

 
 
08/17/2009
Inherited risk factors increase odds of developing childhood acute lymphoblastic leukemia

Scientists at St. Jude Children’s Research Hospital have identified inherited variations in two genes that account for 37 percent of childhood acute lymphoblastic leukemia (ALL), including a gene that may help predict drug response.

 
 
08/07/2009
St. Jude researchers find pre-chewed food could transmit HIV

Researchers have uncovered the first cases in which HIV almost certainly was transmitted from mothers or other caregivers to children through pre-chewed food.

 
 
07/27/2009
Scientists track impact of DNA damage in the developing brain

Switching off a key DNA repair system in the developing nervous system is linked to smaller brain size as well as problems in brain structures vital to movement, memory and emotion, according to new research led by St. Jude Children’s Research Hospital scientists.

 
 
07/27/2009
Comprehensive look at rare leukemia finds relatively few genetic changes launch disease

The most comprehensive analysis yet of the genome of childhood acute myeloid leukemia (AML) found only a few mistakes in the genetic blueprint, suggesting the cancer arises from just a handful of missteps, according to new findings from St. Jude Children’s Research Hospital.

 
 
07/23/2009
Target identified that protects brain from common forms of meningitis

A team led by St. Jude investigators has identified the cell surface receptor that bacteria and other infectious agents must dupe to launch their assault on the brain, a finding that raises hope for a new generation of meningitis vaccines.

 
 
07/21/2009
St. Jude scientists discover new mechanism controlling neuronal migration

The molecular machinery that helps brain cells migrate to their correct place in the developing brain has been identified by St. Jude scientists. The finding offers new insight into the forces that drive brain organization in developing fetuses and children during their first years.

 
 
07/13/2009
Scientists offer new details of the immune system’s quest for balance

From the laboratory of Dario Vignali, PhD, Immunology, comes new evidence that like unruly children who secretly welcome the intervention of a stern teacher, certain aggressive lymphocytes invite suppression by other immune cells.

 
 
07/01/2009
Study tracks long-term challenges facing survivors of childhood CNS tumors

The most comprehensive study yet of long-term survivors of childhood central nervous system (CNS) tumors details risks some survivors face decades after their diagnosis, prompting a renewed call for improved follow-up care.

 
 
06/24/2009
Scientists clear hurdles to tap potential of natural killer cells

Efforts to harness natural killer (NK) cells for cancer treatment advanced recently thanks to a St. Jude strategy that dramatically boosts production of the powerful, but rare immune component.

 
 
06/24/2009
Acute lymphoblastic leukemia, the most common childhood cancer, is curable without preventive cranial radiation

Childhood acute lymphoblastic leukemia (ALL) can be successfully treated using a carefully personalized chemotherapy regimen without cranial radiation, investigators at St. Jude Children's Research Hospital have found. Such radiation of the brain was once a standard ALL treatment to prevent recurrence of the leukemia in the central nervous system (CNS).

 
 
06/12/2009
St. Jude researchers find that MRI can replace biopsy for monitoring iron

Nobody likes needles. So it’s good news that St. Jude researchers have found they can replace one big needle with a magnet. The needle is used to take a liver biopsy sample to measure the body’s iron level; and the magnet is the heart of a magnetic resonance imaging (MRI) machine.

 
 
06/05/2009
Scientists discover new insight into primate eye evolution

Researchers comparing the fetal development of the eye of the owl monkey with that of the capuchin monkey have found that only a minor difference in the timing of cell proliferation can explain the multiple anatomical differences in the two kinds of eyes.

 
 
06/02/2009
Mutant genes identified in high-risk childhood leukemias

A research team has pinpointed a new class of gene mutations, which identify cases of childhood acute lymphoblastic leukemia (ALL) that have a high risk of relapse and death.

 
 
05/26/2009
Study shows childhood cancer survivors exercise less

In a new study of adults who survived cancer as children, St. Jude researchers have found that many survivors lead sedentary lifestyles and are more likely to be less physically active than their siblings.

 
 
05/14/2009
Taming dangerous lung inflammation in influenza

One of the most threatening complications of influenza stems not from the virus itself, but from the overreaction of the immune system. This overreaction can cause persistent lung inflammation that lasts long after the virus has been quelled.

 
 
05/08/2009
Adding a new piece to the puzzle of chromosomal segregation

Every cell in the body arises from the process of cell division—an intricate molecular process in which a cell precisely copies its gene-containing chromosomes and segregates them into identical parcels that migrate into the two new daughter cells. Malfunction of this segregation machinery can have profound consequences.

 
 
05/01/2009
Study holds promise for first targeted treatment of common brain tumor

Scientists have found evidence suggesting that small-molecule drugs could offer the first effective chemotherapy for childhood low-grade astrocytomas, improving the prognosis for hundreds of children with the disease.

 
 
05/01/2009
St. Jude scientists help develop a vaccine for influenza A (H1N1)

As the world watches the developing story of the influenza A (H1N1) outbreak, St. Jude Children’s Research Hospital is working collaboratively with other research centers to help develop an effective vaccine.

 
 
04/24/2009
New insights found into engineering immune cells to fight cancer, infection

Immunologists have made great strides in enlisting the body’s own immune cells to fight cancers and infections.

 
 
04/09/2009
Eye cells believed to be retinal stem cells are misidentified

Cells isolated from the eye that many scientists believed were retinal stem cells are, in fact, normal adult cells, investigators at St. Jude have found. If retinal stem cells could be obtained, they might provide the basis for treatments to restore sight to millions of people with blindness caused by retinal degeneration.

 
 
04/07/2009
Tiny genetic materials identified as key players in causing medulloblastoma

Researchers at St. Jude have demonstrated for the first time that tiny molecules called microRNAs participate in the initiation and progression of one form of human medulloblastoma, the most common malignant brain cancer in children.

 
 
04/03/2009
Cell discovery might lead to therapies to shrink death toll in flu pandemic

St. Jude researchers have discovered a key factor of fatal influenza virus infection that suggests a possible new way to treat the disease and to greatly reduce the death toll of a potential worldwide pandemic like the 1918 Spanish flu.

 
 
03/25/2009
New insights into the cell’s cancer-suppressing machinery

The p53 protein plays an immensely important role in protecting the body from cancer. Dubbed the cell’s guardian of the genome, p53 is constantly poised to detect potentially tumor-causing DNA damage.

 
 
03/23/2009
New cancer treatment drug combo shows promise

Oncologists frequently use combinations of chemotherapy drugs as a knockout punch against tumors. The strategy has proven successful because it aims to jam the machinery of cancer cells in ways that are synergistic—fighting cancers more effectively than the individual drugs could alone.

 
 
03/10/2009
Key medulloblastoma brain cancer genes pinpointed

Scientists at St. Jude have generated new models of medulloblastoma tumors by inactivating different DNA repair pathways, specifically in the brain.

 
 
03/02/2009
Life-and-death protein regulates immune system’s “emergency team”

White blood cells called neutrophils and macrophages are the first responders of the immune system. They serve as the first line of defense against invading microbes—identifying them, engulfing them and eliminating them.

 
 
02/25/2009
Study finds more effective treatment for pneumonia following influenza

Scientists at St. Jude have demonstrated an extremely effective treatment for bacterial pneumonia following influenza.

 
 
02/19/2009
Pinpointing a high-risk leukemia promises better treatment

For the first time, St. Jude researchers have identified a subtype of acute T-lymphoblastic leukemia (T-ALL) that is resistant to standard chemotherapy. They are planning to use this new insight to diagnose the disease in children with the subtype and to use bone marrow transplants to more effectively treat the disease.

 
 
02/17/2009
Study shows how defective DNA repair triggers two neurological diseases

St. Jude scientists have teased apart the biological details distinguishing two related neurological diseases—ataxia telangiectasia-like disease (ATLD) and Nijmegen breakage syndrome (NBS).

 
 
02/12/2009
Childhood cancer survivors show inadequate screening for breast cancer

Even though women treated for childhood cancers with chest radiation suffer a high risk of breast cancer, they are far less likely to begin recommended early mammogram screening than they should, researchers found.

 
 
02/03/2009
St. Jude finds more than 100 gene variations linked with response to leukemia treatment

Scan of thousands of inherited genetic changes reveal specific variations linked to treatment failure and the fate of chemotherapy drugs in the body for children with acute lymphoblastic leukemia.

 
 
01/15/2009
Scientists uncover secrets of drug metabolizing enzymes

St. Jude researchers have discovered a chain of biochemical events that compromise the liver’s capacity to adequately clear many prescription drugs from the bodies of fetuses, young children and patients with liver cancer and other hepatic disorders.

 
 
01/09/2009
Gene abnormality found to predict childhood leukemia relapse

Scientists have identified genetic mutations that predict a high likelihood of relapse in children with acute lymphoblastic leukemia (ALL).

 
 
01/08/2009
New insight into the cell’s busy chaperones

When newly created proteins emerge from the cell’s protein-making machinery, they appear as useless, spaghetti-like strands. Only after these strands fold into their intricate, final globular shapes can proteins begin their work as enzymes and other essential cellular components.

 
 
01/08/2009
Gene therapy corrects sickle cell disease in laboratory study

Using a harmless virus to insert a corrective gene into mouse blood cells, scientists at St. Jude have alleviated sickle cell disease pathology. In their studies, the researchers found that the treated mice showed essentially no difference from normal mice.

 
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