Dr. Dowdle studies a range of health issues, mainly focusing on cancer and complex hand injuries. In cancer research, he has identified genetic factors that could lead to new therapies, particularly for K-RAS mutant cancers, which lack effective treatments. His studies also explore how certain genes can restore normal cell growth in cancer-affected cells. In addition to cancer, Dr. Dowdle's research on complex hand injuries provides critical insights into how such injuries occur and the importance of prompt and proper treatments for better recovery outcomes.
Key findings
Discovered 24 genes that help restore normal cell growth in worms with a mutated Ras gene associated with cancer.
Found that the drug lanperisone selectively kills K-RAS mutant cancer cells, slowing tumor growth in mice without harming healthy tissues.
Identified a specific hand injury that requires surgery, emphasizing the need for better treatment approaches.
Frequently asked questions
Does Dr. Dowdle study cancer?
Yes, Dr. Dowdle's research includes studies on various cancer types, particularly focusing on K-RAS mutant cancers.
What treatments has Dr. Dowdle researched for cancer?
He has researched potential treatments that target K-RAS mutant cancers using drugs like lanperisone, which selectively kills cancer cells.
Is Dr. Dowdle's work relevant to patients with hand injuries?
Yes, his research on complex hand injuries helps improve treatment and recovery options for patients suffering from these injuries.
Publications in plain English
Discovery of nonautonomous modulators of activated Ras.
2022
G3 (Bethesda, Md.)
Corchado-Sonera M, Rambani K, Navarro K, Kladney R, Dowdle J +2 more
Plain English This study looked at how certain genes help communication between different types of cells during development, which is often disrupted in cancer. Researchers found 24 genes that, when reduced, helped restore normal cell growth in worms with a mutated Ras gene associated with cancer. This discovery is important because it highlights new pathways for future cancer research and potential treatments.
Who this helps: This helps patients with cancer and researchers looking for new therapies.
Perihamate-Peripisiform-Transtriquetrum Axial Ulnar Fracture Dislocation of the Hand With an Associated Perilunate Injury.
2018
The Journal of hand surgery
Khurana S, Chen Z, Dowdle J
Plain English This study looked at a rare and serious type of hand injury where a fracture and dislocation occur together. The case involved a patient with a specific injury affecting the bones and soft tissues around the wrist, which required surgery. Understanding this type of injury is important because it can lead to better treatment and recovery options for those affected.
Who this helps: This helps patients with complex hand injuries and the doctors treating them.
Selective killing of K-ras mutant cancer cells by small molecule inducers of oxidative stress.
2011
Proceedings of the National Academy of Sciences of the United States of America
Shaw AT, Winslow MM, Magendantz M, Ouyang C, Dowdle J +5 more
Plain English This study investigated a new potential treatment for cancers with K-RAS mutations, which are among the most common genetic changes in cancer. Researchers found that a drug called lanperisone selectively kills cells with these mutations by causing oxidative stress, leading to cell death, and it effectively slowed tumor growth in mice without causing significant harm to healthy tissue. This research is significant because it highlights a new way to target K-RAS mutant cancers, for which there are currently no effective therapies.
Who this helps: Patients with K-RAS mutant cancers.
A quantitative trait loci analysis of zinc hyperaccumulation in Arabidopsis halleri.
2007
The New phytologist
Filatov V, Dowdle J, Smirnoff N, Ford-Lloyd B, Newbury HJ +1 more
Plain English This study looked at how the plant Arabidopsis halleri can collect zinc, which is important for understanding how some plants thrive in metal-rich soils. Researchers found specific genetic markers linked to zinc accumulation on several chromosomes: three significant areas were identified for low zinc levels and one for high levels. This information helps clarify the genetic basis for metal hyperaccumulation in plants, which could inform future efforts in environmental cleanup and agricultural practices.
Who this helps: This benefits researchers and environmental scientists working on plant adaptations and soil remediation.
Two genes in Arabidopsis thaliana encoding GDP-L-galactose phosphorylase are required for ascorbate biosynthesis and seedling viability.
2007
The Plant journal : for cell and molecular biology
Dowdle J, Ishikawa T, Gatzek S, Rolinski S, Smirnoff N
Plain English This study looked at two specific genes in the plant Arabidopsis thaliana that help produce ascorbate, an important nutrient for plants. Researchers found that plants lacking these genes had 80% less ascorbate, which led to their growth stopping right after germination. This matters because it shows that these two genes are crucial for the plant's ability to grow and thrive, especially under bright light conditions when ascorbate production needs to increase.
Who this helps: This information can benefit plant scientists and agricultural researchers working to improve plant health and productivity.
Conklin PL, Gatzek S, Wheeler GL, Dowdle J, Raymond MJ +4 more
Plain English This study looked at a specific gene in the plant Arabidopsis thaliana that is important for making vitamin C, or ascorbate. Researchers found that a mutation in this gene led to a 50% decrease in vitamin C levels compared to normal plants, indicating that this gene is crucial for the vitamin's production. Understanding this process is important because it could help improve vitamin C content in crops, benefiting both food quality and human health.
Who this helps: This helps farmers and agricultural scientists aiming to enhance the nutritional value of crops.
Comparison of gene expression in segregating families identifies genes and genomic regions involved in a novel adaptation, zinc hyperaccumulation.
2006
Molecular ecology
Filatov V, Dowdle J, Smirnoff N, Ford-Lloyd B, Newbury HJ +1 more
Plain English This study looked at how specific genes help a plant called Arabidopsis halleri absorb and store high levels of zinc, a process known as zinc hyperaccumulation. Researchers found eight key genes that are more active in plants that can accumulate zinc, including two related to metal transport. They also discovered two regions in the plant’s genome linked to zinc accumulation.
Who this helps: This research benefits plant biologists and agricultural scientists who aim to understand and improve plant traits for better metal tolerance.
Plain English This study looked at how computers and voice recognition technology are changing doctors' offices. It found that as these technologies improve, doctors will be able to quickly create office notes without having to dictate them. This is important because it can make medical practices more efficient and improve the overall patient experience.
Who this helps: This helps doctors and their patients by streamlining office procedures.
Tomography versus computed tomography for assessing step off in intraarticular distal radial fractures.
1999
Clinical orthopaedics and related research
Freedman DM, Dowdle J, Glickel SZ, Singson R, Okezie T
Plain English This study compared two types of imaging tests—tomography and computed tomography (CT scans)—to see which one better assesses step off in certain wrist fractures. Researchers created fractures in cadaver arms and measured how well each imaging method captured the actual step off. They found that both imaging methods provided similar accuracy, but tomography was less expensive at $200 compared to $562 for a CT scan, making it the better option.
Who this helps: This benefits doctors and patients by providing a more cost-effective way to assess wrist fractures.
Haramati N, Hiller N, Dowdle J, Jacobson M, Barax CN +3 more
Plain English This study looked at how well MRI scans can detect Stener lesions, which are injuries to the thumb's ulnar collateral ligament, using cadaver thumbs. The results showed that two types of MRI techniques, GRASS and STIR, performed poorly; GRASS had a sensitivity (ability to correctly identify a problem) ranging from 17% to 67%, while STIR was even less effective with a sensitivity up to 17%. These findings matter because they indicate that current MRI methods might not be reliable for diagnosing these specific types of injuries, potentially leading to missed diagnoses.
Who this helps: This helps doctors and surgeons in accurately diagnosing thumb injuries.
Nicholas Smirnoff Stephan Gatzek Susanne Rolinski Victor Filatov Brian Ford-Lloyd H John Newbury Mark R Macnair Marcos Corchado-Sonera Komal Rambani Kristen Navarro
Physician data sourced from the
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Publication data from
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Plain-English summaries generated by AI.
Not medical advice.