Mar 25 2013

CHOP Experts Create Vital Sign Reference Curves for Children in Hospitals

vital signs

To create the curves, researchers analyzed vital signs from over 14,000 inpatients in general hospital wards between the ages of 0 and 18 years.

A team of clinician-researchers from The Children’s Hospital of Philadelphia has created and validated the first set of standardized vital sign curves for heart rates and respiratory rates in hospitalized children. Similar to the long-established growth curves that generations of pediatricians have used while measuring children during office visits, physicians caring for children in hospital settings can now use these new reference tools to help recognize and respond quickly to early signs of clinical deterioration in their patients.

Christopher P. Bonafide, MD, MSCE, of the Division of General Pediatrics, led the study team that published an article in the eFirst pages of the journal Pediatrics on March 11.

“Our team was very surprised to learn that there were no ‘normal values’ published for heart rate and respiratory rate based on data from hospitalized children,” said Dr. Bonafide. “Since these vital signs vary a lot by age, we created these reference curves using electronic medical records from both CHOP and Cincinnati Children’s Hospital Medical Center.”

To create the curves, the researchers analyzed vital signs from over 14,000 inpatients in general hospital wards between the ages of 0 and 18 years.

“These evidence-based percentile curves of vital signs will help rapidly alert doctors to hospitalized children who are very sick and may urgently need to be in the intensive care unit,” Dr. Bonafide added.

To learn more about the many services offered by the Division of General Pediatrics, see the Hospital’s website.

Permanent link to this article: http://www.research.chop.edu/blog/chop-experts-create-vital-sign-reference-curves-for-children-in-hospitals/

Mar 22 2013

Research Links Attention, Slower Gaze Shifting in Infants Who Develop Autism

autismChildren who are later diagnosed with an autism spectrum disorder have subtle but measurable differences in attention as early as 7 months of age, a new study shows. Infants who went on to be diagnosed with autism are slower to shift their gaze from one object to another, according to the researchers, who identified specific brain circuits that seem to cause the slower response.

The findings point to a problem with “sticky attention,” a phenomenon observed in older children with autism, but not well studied before in babies at risk for autism.

The study was conducted by the Infant Brain Imaging Study (IBIS) Network, which includes researchers from the Center for Autism Research at The Children’s Hospital of Philadelphia.

“This is a very exciting study, because the impairments in shifting gaze and attention that we found in 7-month-olds may be a fundamental problem in autism,” said Robert T. Schultz, PhD, director of the Center for Autism Research at CHOP and a co-author on the study.

These findings suggest that 7-month-olds who go on to develop autism show subtle, yet overt, behavioral differences prior to the emergence of autism spectrum disorder. They also implicate a specific neural circuit that may not be functioning as it does in typically developing infants, who show more rapid orienting to visual stimuli.

The results showed that the high-risk infants later found to have ASD were slower to orient or shift their gaze (by approximately 50 milliseconds) than both high-risk-negative and low-risk infants. In addition, visual orienting ability in low-risk infants was uniquely associated with a specific neural circuit in the brain called the splenium of the corpus callosum. This association was not found in infants later classified with ASD.

The study concluded that atypical visual orienting is an early feature of later emerging ASD and is associated with a deficit in a specific neural circuit in the brain.

“These results are another piece of the puzzle in pinpointing the earliest signs of autism,” said Dr. Schultz. “Understanding how autism begins and unfolds in the first years of life will pave the way for more effective interventions and better long-term outcomes for individuals with autism and their families.”

More details of the study are available on the CHOP Research Institute’s website.

Permanent link to this article: http://www.research.chop.edu/blog/research-links-attention-slower-gaze-shifting-in-infants-who-develop-autism/

Mar 20 2013

CHOP Investigator Sheds Light on Effects of Sequestration on Cancer Research

SequestrationSequestration — it’s a word we’ve sure heard a lot lately. The automatic, across-the-board federal budget cuts have the potential to significantly impact myriad government agencies and programs. Not only will sequestration affect the likes of defense spending, education, national security and other initiatives, but the cuts will also affect scientific research through cuts in funding to the National Institutes of Health, which fund critical research programs across the country.

CHOP’s Peter Adamson, MD, who heads the Children’s Oncology Group, the largest organization in the world dedicated to childhood and adolescent cancer research, was recently interviewed by journalist Paul Goldberg for the March 15 issue of The Cancer Letter. Dr. Adamson, who also serves as the chief of the Hospital’s Division of Clinical Pharmacology and Therapeutics, talked about the effect of the sequestration on cancer research.

“It sets us back, and it sets the outcomes for children with cancer back if we can’t move our highest-priority ideas forward into the clinical research and answer these important questions,” Dr. Adamson said, who also spoke of the different impact the sequestration may have on pediatric versus adult clinical trials.

Fifty years ago, only about 10 percent of children with cancer survived, Dr. Adamson noted. The investment in research and the rapid advance of science now means that the survival rates today for children with cancer have soared to nearly 80 percent.

While cancer studies for adults are frequently funded by the biopharmaceutical industry, Dr. Adamson said, the same cannot be said for pediatric cancer studies. The funding for those trials, which are critical for moving new therapies to patients’ bedside, come almost entirely from the National Cancer Institute.

“[T]he reason for that is that childhood cancers are a collection of rare and ultra-rare diseases,” Dr. Adamson said. “So the economic models for industry to get into drug development and research for pediatric cancer simply isn’t there.”

It is too early to anticipate what funds will be cut from COG programs, and what initiatives might feel the greatest impact, although Dr. Adamson speculates that up to 5 percent of COG funding will be cut.

He added that COG is committed to completing those pediatric cancer studies that are already underway but cautioned that the sequestration could jeopardize new studies looking at new and promising therapies and treatment approaches.

“The pace of discovery now was unimaginable even five, and certainly 10 years ago,” Dr. Adamson told The Cancer Letter. “And during that discovery is when you want to increase investment. This is where we have these discoveries, and if we don’t turn those discoveries into better cures, then we’ll have failed a generation. And in order to do that, you actually want to increase your investment in childhood cancer research.”

The Cancer Letter is a weekly newsletter providing the latest on cancer research funding, legislation, policy issues, drug development, and people in the news. More details are available on The Cancer Letter’s website, which also has available a recording of Dr. Adamson’s interview.

Permanent link to this article: http://www.research.chop.edu/blog/chop-investigator-sheds-light-on-effects-of-sequestration-on-cancer-research/

Mar 18 2013

New on Research in Action

New on Research in Action are two stories that touch on a tragic topic: children and teenagers being injured in car crashes.

New on Research in Action: children and teenagers being injured in car crashes.

New on the Center for Injury Research and Prevention’s (CIRP) blog Research in Action are two stories that touch on a tragic topic: children and teenagers being injured in car crashes.

In her post “A Tragic Mix: Teens Driving Multiple Passengers,” Suzanne D. Hill, CIRP’s program director for Outreach and Advocacy, wrote about the recent spate of groups of teenagers being injured or killed in car crashes. While the details of several recent crashes that have made headlines — in Ohio, Texas, and Illinois — remain under investigation, the “crashes did share one thing in common: a carload of teens driven by a teen driver, which can exponentially increase the risk of a fatal crash,” Hill writes.

“Unfortunately, these crashes are examples of what is seen nationally and are a cautionary tale for other families and other communities,” she notes.

And more recently, Allison E. Curry, PhD, MPH, wrote about how parents can help injury researchers, posting about a study published in Injury Prevention, to which CIRP researchers Dennis Durbin, MD, MSCE, and Mark R. Zonfrillo, MD, MSCE, also contributed. The researchers evaluated “a survey that asked parents of recently injured children to report on their child’s injuries to specific body regions,” Dr. Curry writes. An update of an earlier form of parent survey, the survey studied “was developed in collaboration with pediatric emergency medicine physicians and features terminology consistent with how clinicians explain injuries to families,” she notes.

To read Dr. Curry’s full post, click here. And for more posts from the Center for Injury Research and Prevention’s active, dynamic staff, see Research in Action.

Permanent link to this article: http://www.research.chop.edu/blog/new-on-research-in-action/

Mar 14 2013

CHOP Pediatrics Named #1 by U.S. News & World Report

pediatrics

The Children’s Hospital of Philadelphia and the University of Pennsylvania’s Perelman School of Medicine was recently named the top pediatric graduate program in the country by U.S. News & World Report.

We couldn’t be happier to announce that The Children’s Hospital of Philadelphia was recently named the top pediatrics graduate program in the country! On Tuesday, U.S. News & World Report released its 2014 Best Graduate Schools rankings, and Children’s Hospital, along with its academic affiliate, the University of Pennsylvania’s Perelman School of Medicine, garnered the #1 spot in Pediatrics.

The Perelman School of Medicine’s Department of Pediatrics — which is located at CHOP — is led by Alan R. Cohen, MD, Children’s Hospital’s physician-in-chief. Hundreds of full-time faculty members at CHOP train future physicians and research scientists in a variety of programs every year.

U.S. News & World Report used a variety of measures to determine its rankings, including peer assessments, admissions selectivity, expert opinions, and the level of research activity. After CHOP and the University of Pennsylvania, Harvard Medical School and the University of Cincinnati round out the top three medical schools for pediatrics.

This latest ranking from U.S. News & World Report comes on the heels of CHOP being named the top pediatric hospital in the country by Parents magazine. And last year, Children’s Hospital tied for first overall in U.S. News and World Report’s 2012-13 rankings of the top children’s hospitals in the country, while also ranking number one in six of ten specialties.

“This recognition by a journalistic organization reminds us once again of the outstanding achievements of our staff members and their continuing commitment to excellence,” said Steven M. Altschuler, MD, chief executive officer of The Children’s Hospital of Philadelphia.

Permanent link to this article: http://www.research.chop.edu/blog/chop-pediatrics-named-1-by-u-s-news-and-world-report/

Mar 11 2013

Improving Sickle Cell Care in the U.S. and Abroad

sickle cellIn a recent interview with the National Initiative for Children’s Healthcare Quality (NICHQ), Kwaku Ohene-Frempong, MD, Doctor Emeritus of CHOP’s Comprehensive Sickle Cell Center, discussed his work with sickle cell disease. Dr. Ohene-Frempong, who has worked for more than thirty years to improve sickle cell disease treatments in the U.S. and abroad, noted that in Africa sickle cell disease is a “a major health problem.”

According to the CDC, sickle cell disease (SCD), a group of inherited blood disorders, affects between 90,000 and 100,000 Americans, most of them African American or Black. SCD is characterized by episodes of pain, chronic anemia, and other complications. While SCD may only affect a small percentage of Americans, millions more worldwide live with the effects of SCD every day.

Originally from Ghana, Dr. Ohene-Frempong has a very personal relationship with SCD: both he and his son carry the disease. He first discovered that he was a carrier of SCD when he was tested after being selected to represent Ghana in the 1968 Olympics in Mexico City. And when Dr. Ohene-Frempong’s son was born, it was discovered that he too carried SCD.

Later, while studying for his medical school thesis in Kumasi, Ghana, Dr. Ohene-Frempong found that most children born with SCD in Ghana likely died undiagnosed. “My mother, knowing then that my son had SCD, advised me to become a doctor for children with SCD,” he said.

Since then, screening for SCD has become a routine part of newborn testing. “Previously, the first three years of life used to have the highest mortality in SCD. Now in the United States, we don’t see many deaths in the first three years, which is a real triumph for newborn screening and the care that follows.”

Though great strides in the fight against SCD have been made in the U.S., the disorder remains “a completely different public health problem in Africa,” Dr. Ohene-Frempong said. Citing the World Health Organization, he pointed out that SCD “contributes somewhere between 9 to 16 percent of deaths for children under the age of five,” in Africa.

“In the United States, there was already newborn screening going on when SCD was added,” Dr. Ohene-Frempong said. “But in Africa, national newborn screening programs do not exist for any diseases so it requires introducing a complete new public health service, which takes a lot more capacity-building both in technology and in human resources.”

To read the full interview with Dr. Ohene-Frempong, see the NICHQ’s website. To learn more about CHOP’s Sickle Cell Clinical Center and research, see the Center’s site.

Permanent link to this article: http://www.research.chop.edu/blog/improving-sickle-cell-care-in-the-u-s-and-abroad/

Mar 07 2013

CHOP Researcher’s Innovative Immune Therapy Featured on The Doctors

immune therapyThe innovative work being done by CHOP’s Stephen Grupp, MD, was recently featured on the CBS show The Doctors. Dr. Grupp, the Center for Childhood Cancer Research’s director of translational research, discussed his trial using immune therapy to treat an aggressive form of childhood leukemia, acute lymphoblastic leukemia (ALL).

While roughly 85 percent of ALL cases can be cured, the remaining 15 percent resist conventional treatments. “For the kids who aren’t [cured], this is where we need other kinds of treatments,” Dr. Grupp said.

In short, the trial led by Dr. Grupp — which builds on work by the University of Pennsylvania’s Carl H. June, MD — involves modifying T cells, a type of white blood cells, to attack cancer cells. CAR T cells (chimeric antigen receptor T cells) are engineered to specifically target B cells, which can become cancerous in leukemias like ALL, as well as certain types of lymphoma, another cancer of the immune cells.

Dr. Grupp received a great deal of attention for his work after one of his young patients, Emily Whitehead, achieved a complete response — a disappearance of cancer — after she was treated with engineered T cells. Prior to being enrolling in the CART19 trial (now known as CLT019), Emily’s prospects were grim: her cancer had relapsed during a second round of conventional chemotherapy.

Though few patients have so far been treated with modified T cells  — just ten adults and two children — researchers are hopeful that such an approach to immune therapy could one day be used to treat B cell cancers. In Emily’s case, since receiving the treatment, she has remained cancer-free.

To read more about T cell therapy at CHOP, see the Hospital’s CLT019 clinical trial web page. And click here to learn more about Emily’s inspirational story.

Permanent link to this article: http://www.research.chop.edu/blog/chop-researchers-innovative-immune-therapy-featured-on-the-doctors/

Mar 05 2013

Veteran MS Researcher Receives Award

MS

Dr. Grinspan accepting the Professional Impact Award from Greater Delaware Valley Multiple Sclerosis Society chapter president, Tami Caesar.

At a recent event in Cherry Hill, N.J., longtime CHOP researcher Judith Grinspan, PhD, received the “Professional Impact Award” from the Greater Delaware Valley Multiple Sclerosis Society. Dr. Grinspan has spent more than 25 years examining how multiple sclerosis damages the nervous system, and ways that damage might be repaired.

Dr. Grinspan was the first researcher to receive this new award from the Greater Delaware Valley Multiple Sclerosis Society. Serving Philadelphia and its surrounding counties as well as southern New Jersey, the Delaware Valley Chapter raises funds to support multiple sclerosis research and patient assistance, and publishes the MSConnection newsletter.

Multiple sclerosis (MS) is an often debilitating chronic disease of the central nervous system in which myelin — the fatty sheath that insulates the nerves — is damaged, leading to nerve signaling loss. Symptoms of MS include numbness, weakness in the limbs, vision problems, and progressive disability. MS affects approximately 90 out of 100,000 people, and is mainly seen between the ages of 20 and 40. Pediatric MS is less common, representing perhaps 5 percent of all multiple sclerosis patients.

There is no cure for multiple sclerosis. While a variety of drugs exist to manage the disease’s symptoms and to slow its progression, current treatments are only effective up to a certain point, Dr. Grinspan pointed out. Including her postdoctoral research, Dr. Grinspan has been researching MS since 1986.

Much of Dr. Grinspan’s research has been devoted to better understanding oligodendrocytes, cells of the central nervous system that produce myelin. Her work on these cells recently led to a collaboration with neonatologist Rebecca Simmons, MD, examining intrauterine growth restriction (IUGR), a relatively common complication of pregnancy. The researchers looked at the process of oxidative stress — an imbalance between free radicals and free radical scavengers that is commonly associated with prematurity and IUGR.

Overall, Dr. Grinspan’s work wouldn’t be possible without funding from organizations like the Multiple Sclerosis Society. “I am honored to have won this award and am thankful that the MS society has enabled me to do this research through their continued support,” Dr. Grinspan said.

To read more about Dr. Grinspan’s work, see the CHOP Research website. To learn more about the work being done by CHOP neurologists, see the Division of Neurology’s website.

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Permanent link to this article: http://www.research.chop.edu/blog/veteran-chop-ms-researcher-receives-award/

Feb 28 2013

Say Hello to Research in Action !

Research in ActionThose of us here at Cornerstone are excited to welcome another member of the CHOP family to the blogosphere: the Center for Injury Research and Prevention has launched a new blog! Research in Action will feature news and commentary on the important work being done at the Center for Injury Research and Prevention every day, and will tackle such topics as teen driving, child safety seats, and concussions.

Though it was only launched recently, the Research in Action team has been very active, publishing a number of posts by Center for Injury Research and Prevention investigators. Flaura K. Winston, MD, PhD, scientific director and founder of the Center, wrote a post on the importance of interdisciplinary collaboration in injury prevention research. More recently, Mark Zonfrillo, MD, MSCE, reported on a Pediatrics study of physical disability in children who have suffered traumatic injuries.

The Center’s Suzanne Hill and Nancy Kassam-Adams, PhD, have also contributed posts to the blog, while Patty Huang, MD, a developmental and behavioral pediatrician, will be moderating Research in Action.

The blog is sure to be updated frequently, so don’t forget to subscribe to Research in Action’s feed!

Permanent link to this article: http://www.research.chop.edu/blog/say-hello-to-research-in-action/

Feb 26 2013

Using Next-Generation Sequencing to Understand and Treat Disease

next-generation sequencing

Researchers use next-generation sequencing to gain a deeper understanding of the tumors’ genetics, with the ultimate goal of developing highly targeted therapies.

How time flies! It seems almost impossible that the many events of 2003 are now almost ten years in the past. It’s also hard to believe that the completion of the Human Genome Project, a government-led initiative involving researchers from all around the world, was nearly a decade ago. In addition, the way next-generation sequencing technology has developed in the past decade is almost unbelievable.

The Human Genome Project, for example, cost just under $3 billion and took thirteen years to complete. Nowadays, a person can have their genome sequenced in mere months for several thousand dollars. At CHOP, next-generation gene sequencing technologies are being used all the time to better understand and treat childhood disease.

A recent article in the trade publication Clinical Lab Products examined the development and potential impact of next-generation sequencing technologies. Next-generation sequencing “seems poised to deliver on the potential shift in paradigm that will truly enable precise diagnosis, personalized medicine, and preventive care,” the article says.

The article featured input from CHOP’s Avni Santani, PhD, scientific director of the Molecular Genetics Laboratory. Led by Catherine A. Stolle, PhD, the Molecular Genetics Laboratory provides “DNA-based diagnostic testing for genetic disorders affecting children and adults.”

“In the future, I can see that the application of next-generation sequencing for the diagnosis of genetic diseases in children and adults will find widespread use across clinical genetics labs,” noted Dr. Santani.

A recent example is CHOP’s partnership with Shenzhen, China-based BGI to analyze pediatric brain tumors as part of the Childhood Brain Tumor Tissue Consortium. The researchers use next-generation sequencing to gain a deeper understanding of the tumors’ genetics, with the ultimate goal of developing highly targeted therapies.

“Genetic testing using NGS could be cost-effective, rapid, and comprehensive. Ten years from now, as the technology improves, sequencing the human genome could very well be a routine test,” Dr. Santani said. “The amount of data generated by next-gen sequencing is unprecedented.”

To read more, see the full Clinical Lab Products article. To read more about the Molecular Genetics Laboratory, see the lab’s website.

Permanent link to this article: http://www.research.chop.edu/blog/using-next-generation-sequencing-to-understand-and-treat-disease/

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