Dr. Sternberg’s research primarily investigates the intersection of material science and health. He explores the development of safer, sustainable materials, such as flexible foams made from natural resources like lignin and soy hulls. These innovations aim to reduce reliance on toxic substances used in traditional manufacturing processes. Additionally, he focuses on improving medical diagnostics, particularly for heart and lung transplant patients through novel blood tests that can identify organ rejection with high sensitivity. His work also includes studying the metabolic effects of doping agents in athletes and understanding health implications related to marijuana use during pregnancy.
Key findings
The new polyurethane foams made from lignin and castor oil are lightweight, flexible, and reduce reliance on harmful chemicals, achieving densities of less than 100 kg per cubic meter.
In a study on doping agents, the seminal vesicle was found to only minimally metabolize LGD-4033, GW1516, and trimetazidine, impacting anti-doping processes.
A blood test for heart transplant patients detected rejection with 78.5% sensitivity and 76.9% specificity at 0.15% donor-derived cell-free DNA levels.
For lung transplant patients, the dd-cfDNA test achieved 89.1% sensitivity for acute rejection, providing an accurate monitoring method.
In a review of 2,800 deliveries, marijuana use among pregnant mothers was linked to a 4.1 times higher risk of having babies that are smaller for their age.
Frequently asked questions
Does Dr. Sternberg study organ transplant rejection?
Yes, he has researched innovative blood tests that accurately detect acute rejection in heart and lung transplant patients.
What materials does Dr. Sternberg focus on?
He studies the development of flexible foams and polymers made from natural substances like lignin and soy hulls to create safer, eco-friendly alternatives.
Is Dr. Sternberg's work relevant to pregnant women?
Yes, his research investigates how marijuana use during pregnancy can affect maternal and fetal health outcomes.
What advancements has Dr. Sternberg made in medical imaging?
He has worked on improving imaging techniques to better visualize nerves, which aids in diagnosing muscle issues.
How does Dr. Sternberg's research help athletes?
His studies on the metabolism of doping agents help clarify how certain substances are processed in the body, which is crucial for anti-doping enforcement.
Publications in plain English
Synthesis and Characterization of Soy Hull Biochar-Based Flexible Polyurethane Foam Composites.
2025
Materials (Basel, Switzerland)
Ganesan K, Guin B, Wilbanks E, Sternberg J
Plain English This study explored how using soy hulls—waste from soybean production—can improve flexible polyurethane foams, which are found in furniture, packaging, and cars. Researchers discovered that adding soy hull biochar allowed them to use less toxic chemicals while keeping the foam strong and less flammable. This is important because it means we can make safer and more environmentally friendly products at a lower cost.
Who this helps: This benefits manufacturers and consumers looking for safer and greener foam materials.
In Vitro Metabolism of Doping Agents (Stanozolol, LGD-4033, Anastrozole, GW1516, Trimetazidine) by Human Seminal Vesicle and Liver Fractions.
2025
Metabolites
Sternberg J, Peters I, Naumann N, Thomas A, Thevis M
Plain English This study looked at how certain doping substances are processed in the human seminal vesicle and liver. The researchers found that the seminal vesicle only slightly metabolizes some drugs, like LGD-4033, GW1516, and trimetazidine, while it showed no signs of processing stanozolol or anastrozole. This matters because understanding how drugs are metabolized helps clarify the complex situations in anti-doping cases, particularly when athletes claim unintentional exposure to banned substances.
Who this helps: This helps athletes and anti-doping officials by providing clearer insights into the metabolic breakdown of drugs in the body.
Plain English This research studied a new type of foam made from natural materials, specifically lignin and castor oil, to create a safer alternative to traditional polyurethane foams that use harmful chemicals. The findings showed that this new foam can be made lightweight (less than 100 kg per cubic meter) and flexible, while still reaching properties similar to the commercial foams we commonly use. This is important because it allows industries to use a safer, sustainable product that reduces reliance on toxic substances.
Who this helps: This helps manufacturers and industries looking for safer, eco-friendly materials.
Thermoplastic Polymer from Lignin: Creating an Extended Polyamide Network through Reactive Kraft Lignin Derivatives.
2023
ACS omega
Sternberg J, Pilla S
Plain English This study focused on creating a new type of plastic using lignin, a natural material from plants, to make a stronger and more flexible polymer. The researchers found that by adding lignin, they could create a plastic that is 99% made from renewable materials, which showed improved strength and flexibility compared to traditional plastics. This matters because it offers a way to produce more sustainable plastics that can be made using less energy and resources.
Who this helps: This benefits manufacturers looking for eco-friendly materials to produce consumer products.
Clinical Validation of a Plasma Donor-derived Cell-free DNA Assay to Detect Allograft Rejection and Injury in Lung Transplant.
2022
Transplantation direct
Rosenheck JP, Ross DJ, Botros M, Wong A, Sternberg J +11 more
Plain English This study examined a new blood test that measures donor-derived cell-free DNA (dd-cfDNA) to identify lung transplant rejection and injury. Researchers analyzed 195 samples from 103 patients and found that higher levels of dd-cfDNA were linked to acute rejection and other types of allograft injury. Specifically, the test showed an 89.1% sensitivity for detecting acute rejection, meaning it accurately identified most cases, and a 97.3% rate for correctly ruling out those who did not have it.
Who this helps: This benefits lung transplant patients by providing a noninvasive way to monitor their health.
A novel donor-derived cell-free DNA assay for the detection of acute rejection in heart transplantation.
2022
The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation
Kim PJ, Olymbios M, Siu A, Wever Pinzon O, Adler E +10 more
Plain English This study looked at a new blood test that checks for acute rejection in heart transplant patients, aiming to find a less invasive alternative to the standard tissue biopsy. Researchers analyzed 811 blood samples from 223 patients and found that when the level of donor-derived cell-free DNA (dd-cfDNA) in the blood was 0.15% or higher, it accurately identified rejection cases with 78.5% sensitivity and 76.9% specificity. This test could significantly reduce the need for more invasive and costly procedures while still effectively monitoring transplant health.
Who this helps: This helps heart transplant patients and their doctors by providing a safer and simpler way to detect organ rejection.
Evaluation of an ImmunoPET Tracer for IL-12 in a Preclinical Model of Inflammatory Immune Responses.
2022
Frontiers in immunology
Viola NT, Glassbrook JE, Kalluri JR, Hackett JB, Wicker MN +2 more
Plain English This study looked at a new imaging tool that tracks a protein called interleukin-12 (IL-12), which plays important roles in the immune response, cancer, and inflammation. Researchers tested this imaging tool in mice and found that after simulating an infection, the mice showed a significant increase in the tracer, indicating high levels of IL-12 in their muscles, spleens, lymph nodes, and intestines. In treated cancer tumors, the tracer also revealed higher levels of immune activity, suggesting this imaging method could help monitor immune responses without invasive procedures.
Who this helps: This benefits patients undergoing cancer immunotherapy by providing doctors with a way to assess how well their treatments are working.
Asset-Based, Sustainable Local Economic Development: Using Community Participation to Improve Quality of Life Across Rural, Small-Town, and Urban Communities.
2022
Applied research in quality of life
Kammer-Kerwick M, Takasaki K, Kellison JB, Sternberg J
Plain English The study looked at how people living in different types of Texas communities feel about local projects that could improve their quality of life, based on a survey of over 5,400 residents across 85 communities. It found that factors like whether a community is urban or rural, and the social background of residents, affect their preferences for development projects, such as renovating buildings, creating a health center, or providing high-speed internet. This is important because understanding these preferences can help planners create more effective community development strategies that truly meet residents' needs.
Who this helps: This research benefits community leaders and planners working to improve local living conditions.
Epstein-Barr virus-related dacryocystitis: a case report.
2022
Journal of medical case reports
Sternberg J, Lambiel S, Van HC, Massa H, Landis BN
Plain English This study focused on a rare eye condition called acute dacryocystitis in a 6-year-old girl, which was linked to the Epstein-Barr virus. The girl initially presented with swelling and redness around her eye but had no signs of infection that would require surgery, and tests confirmed she had mononucleosis caused by the virus. She was treated successfully with gentle massages of the tear duct and antibiotics, which showed that non-invasive treatment is effective and should be preferred over surgery in similar cases.
Who this helps: This benefits children with eye-related infections and their doctors by guiding diagnosis and treatment.
Improved nerve conspicuity with water-weighting and denoising in two-point Dixon magnetic resonance neurography.
2021
Magnetic resonance imaging
Tan ET, Queler SC, Lin B, Endo Y, Burge AJ +3 more
Plain English This study examined how two techniques, water-weighting and denoising, improve the quality of images taken during nerve scans using magnetic resonance neurography (MRN). Researchers found that using these methods made nerves more distinct, with nerve visibility increasing by nearly six times (odds ratio of 5.8) and fat suppression improving significantly. These advancements are important because they allow for more accurate diagnosis of muscle issues, which can lead to better treatment options for patients.
Who this helps: Patients with muscle nerve damage or related conditions.
Marijuana use and perinatal outcomes in obstetric patients at a safety net hospital.
2021
European journal of obstetrics, gynecology, and reproductive biology
Sasso EB, Bolshakova M, Bogumil D, Johnson B, Komatsu E +3 more
Plain English This study looked at how using marijuana during pregnancy affects both mothers and their babies. Out of nearly 2,800 deliveries, 5.4% of the mothers reported using marijuana. The findings showed that these mothers were more likely to have cesarean deliveries and their babies had a 4.1 times higher risk of being smaller than normal for their age and a 2.89 times higher risk of needing extra oxygen at birth. Understanding these risks is important for addressing healthcare disparities in pregnant women who use marijuana.
Who this helps: This helps pregnant women, healthcare providers, and public health officials.
Verdi J, Zipkin R, Hillman E, Gertsch RA, Pangburn SJ +4 more
Plain English This study looked at how certain antibodies respond to the Trypanosoma brucei parasite, which causes a serious disease in both humans and livestock. Researchers found that specific antibodies called IgMs, which are usually present at low levels, increase significantly during infections. These antibodies help the immune system recognize and fight the parasite, which is important for developing better treatments.
Who this helps: This helps patients suffering from trypanosomiasis and the healthcare providers treating them.
[Appropriateness of complementary exams in the initial assessment of acute kidney injury].
2019
Revue medicale suisse
Sternberg J, Briner R, Bourquin V
Plain English This study looked at how doctors assess acute kidney injury, which is when the kidneys suddenly stop working properly. Researchers found that many of the tests usually done are not very helpful, and they proposed a simpler approach using a basic urine test called a dipstick. This test is cheap and easy to use and can effectively guide treatment without the need for extensive, often unnecessary testing.
Who this helps: Patients with acute kidney injury benefit from more efficient and effective diagnoses.
Plain English This study looked at how effective a gel containing diclofenac sodium and hyaluronic acid was in treating actinic keratosis (AK), a skin condition caused by sun damage. Out of 24 patients, 20 showed improvement after three months, with an average reduction in severity of 31.4%. These findings indicate that using the AKASI score is a better way to measure treatment success than just counting skin lesions.
Who this helps: Patients with actinic keratosis and their doctors.
Adiponectin confers protection from acute colitis and restricts a B cell immune response.
2017
The Journal of biological chemistry
Obeid S, Wankell M, Charrez B, Sternberg J, Kreuter R +10 more
Plain English This study focused on the role of a protein called adiponectin in protecting against a severe bowel condition known as colitis. Researchers found that mice without adiponectin had much worse colitis, showing more inflammation and damage compared to normal mice. Specifically, the mice lacking adiponectin exhibited increased inflammation and cell death in the colon, highlighting how important this protein is for gut health.
Who this helps: This research benefits patients suffering from bowel diseases, including colitis, by offering insights into potential treatments.
Measurement of hyper- and hypotension during repeated dose toxicity studies in either freely moving or physically restrained cynomolgus monkeys.
2014
Journal of pharmacological and toxicological methods
Niehoff MO, Niggemann B, Sternberg J, Jenkins A, Holbrook M
Plain English This study looked at how blood pressure changes in monkeys during toxicity tests, focusing on two methods: a new telemetric device that measures blood pressure while the monkeys move freely and a traditional method that requires restraining the animals. Researchers found that when the monkeys were given a drug called etilefrine, their blood pressure significantly increased, especially with higher doses, but this effect was reduced when the animals were restrained for measurements. In contrast, another drug, dihydralazine, consistently lowered blood pressure, and this was effectively measured even when the monkeys were physically restrained.
Who this helps: This helps researchers and scientists who conduct toxicity studies, improving the accuracy of blood pressure measurements in animal testing.
An extensive endoplasmic reticulum-localised glycoprotein family in trypanosomatids.
2014
Microbial cell (Graz, Austria)
Allison H, O'Reilly AJ, Sternberg J, Field MC
Plain English The study examined a group of proteins called invariant glycoproteins (IGPs) in a type of parasite known as African trypanosomes. Researchers identified three main subfamilies of these proteins—IGP34, IGP40, and IGP48—that play important roles in the parasite's life cycle and are crucial for its growth and development. Specifically, they found that the IGP48 protein helps maintain the structure of the endoplasmic reticulum, an important part of the cell, and is recognized by the immune system in infected humans.
Who this helps: This research aids scientists and doctors working on treatments for infections caused by these parasites.
Population genetics of Trypanosoma brucei rhodesiense: clonality and diversity within and between foci.
2013
PLoS neglected tropical diseases
Duffy CW, MacLean L, Sweeney L, Cooper A, Turner CM +4 more
Plain English This study looked at the genetic makeup of a parasite called Trypanosoma brucei rhodesiense, which causes sleeping sickness in humans and livestock in East and Southern Africa. Researchers found that in Uganda, this parasite usually exists as clonal populations, meaning there are only a few similar types, but these types change over time and lose genetic variety. In Malawi, however, the parasites were more diverse and showed signs of frequent genetic mixing. This matters because understanding how these parasites evolve can help track and control the diseases they cause.
Who this helps: This research benefits public health officials and researchers working to control diseases like sleeping sickness.
Multimedia campaign on a shoestring: promoting 'Stay Active - Stay Independent' among seniors.
2008
Health promotion journal of Australia : official journal of Australian Association of Health Promotion Professionals
John-Leader F, Van Beurden E, Barnett L, Hughes K, Newman B +2 more
Plain English This research examined a low-budget multimedia campaign called 'Stay Active - Stay Independent' aimed at encouraging seniors in rural New South Wales to be more physically active and reduce falls. Over 18 months, the campaign cost $42,000 but generated nearly double that in sponsorship, reaching 36% of the target audience. Among those aware of the campaign, 22% reported becoming more active, indicating that effective marketing can successfully promote health among seniors.
Who this helps: This helps seniors and the organizations supporting their well-being.
Deletion of Go2alpha abolishes cocaine-induced behavioral sensitization by disturbing the striatal dopamine system.
2008
FASEB journal : official publication of the Federation of American Societies for Experimental Biology
Brunk I, Blex C, Sanchis-Segura C, Sternberg J, Perreau-Lenz S +8 more
Plain English This study looked at how a specific protein called Go2alpha affects brain responses to cocaine. Researchers found that mice without Go2alpha showed much less sensitivity to the effects of cocaine, with their motor activity significantly reduced and lower dopamine levels in their brains. This is important because it helps to explain how certain brain chemicals work together in response to drugs, which can provide insights for treating addiction.
Who this helps: This benefits researchers and healthcare professionals working on addiction treatments.
Malawi medical journal : the journal of Medical Association of Malawi
Chisi J, Nkhoma A, Sternberg J
Plain English In this study, researchers looked at how Human African Trypanosomiasis (HAT) was affecting people in Nkhotakota District, Malawi. They found 28 cases of the disease, with half of the patients showing symptoms within a month and 57% having enlarged spleens. Unfortunately, 14% of the patients died from the illness, underscoring the seriousness of the disease and the need for timely diagnosis and treatment.
Who this helps: This information benefits patients and healthcare providers in understanding and managing HAT more effectively.
Phase II trial of weekly docetaxel/ gemcitabine as first-line chemotherapy in patients with locally recurrent or metastatic breast cancer.
2006
Clinical breast cancer
O'Shaughnessy JA, Pluenneke R, Sternberg J, Khandelwal P, Ilegbodu D +1 more
Plain English This study tested a combination of two chemotherapy drugs, docetaxel and gemcitabine, given once a week to patients with locally advanced or metastatic breast cancer who had not yet received chemotherapy for their metastatic disease. Out of 45 patients treated, 39 showed significant results, with 3 patients achieving complete tumor shrinkage and 12 achieving partial shrinkage, resulting in an overall response rate of 39%. The average survival for patients was about 15.8 months, and while the treatment was generally tolerated, some experienced serious side effects like low blood cell counts and fatigue.
Who this helps: This benefits patients with advanced breast cancer who are looking for effective treatment options.
Regulation of vesicular monoamine and glutamate transporters by vesicle-associated trimeric G proteins: new jobs for long-known signal transduction molecules.
2006
Handbook of experimental pharmacology
Brunk I, Höltje M, von Jagow B, Winter S, Sternberg J +3 more
Plain English This research studied how certain proteins in nerve cell vesicles help control the storage of neurotransmitters, which are chemicals that transmit signals between nerve cells. The study found that specific G proteins, called Galphao2 and Galphaq, play a key role in regulating two types of neurotransmitter transporters, helping to fill vesicles with the right amount of neurotransmitters. This regulation is important because the amount of neurotransmitter in these vesicles affects how effectively signals are transmitted in the brain.
Who this helps: This helps patients with neurological conditions by improving our understanding of how signals in the brain are regulated.
Properties of pseudopotentials for higher partial waves.
2006
Physical review letters
Macek JH, Sternberg J
Plain English This research focused on how certain theoretical models (pseudopotentials) can describe interactions between particles in cold atomic gases, specifically looking at situations involving higher angular momentum. The researchers discovered that three fermions interacting through these models can form special states, known as Efimov states, suggesting that similar complex behaviors seen in bosons can also occur in fermions. Understanding these interactions is significant because it could lead to better insights into the behaviors of cold atomic gases, which have important applications in physics.
Who this helps: This benefits physicists studying cold atomic gases and their applications in advanced technologies.
Proinflammatory cytokine expression in the early phase of Trypanosoma brucei rhodesiense infection in vervet monkeys (Cercopithecus aethiops).
2004
Infection and immunity
Maina N, Ngotho JM, Were T, Thuita JK, Mwangangi DM +3 more
Plain English This study looked at how vervet monkeys respond to an infection caused by a parasite called Trypanosoma brucei rhodesiense, which leads to a disease known as trypanosomiasis. The researchers found that after infection, a protein called gamma interferon increased significantly in the blood from days 6 to 8, and was followed by a consistent increase in another protein called TNF-alpha. However, they did not find these proteins in the cerebrospinal fluid, which surrounds the brain and spinal cord.
Who this helps: This information can help researchers better understand how to treat and manage trypanosomiasis in affected patients.
Patterns of plasma leptin and insulin concentrations in hospitalized patients after the initiation of total parenteral nutrition.
2002
The American journal of clinical nutrition
McCowen KC, Ling PR, Friel C, Sternberg J, Forse RA +2 more
Plain English This study looked at how leptin and insulin levels changed in hospitalized patients starting total parenteral nutrition (TPN), a method of feeding that bypasses the digestive system. Out of 26 patients, 20 completed the 3-day TPN regimen, and their leptin levels rose from about 356 to 794 pmol/L, while insulin levels increased from 257 to 979 pmol/L. Notably, while women's leptin levels tripled, the changes in men were not significant, showing that the way leptin is regulated during a critical illness is different from how it works in healthy people.
Who this helps: This research benefits doctors and healthcare providers who care for critically ill patients receiving TPN.
Hypocaloric total parenteral nutrition: effectiveness in prevention of hyperglycemia and infectious complications--a randomized clinical trial.
2000
Critical care medicine
McCowen KC, Friel C, Sternberg J, Chan S, Forse RA +2 more
Plain English This study looked at how two different feeding strategies during total parenteral nutrition (TPN) could affect blood sugar levels and infection rates in patients who need this form of nutrition. Researchers compared a lower-calorie feeding plan (1,000 calories) with a standard plan (which increased up to 2,500 calories) over five days. They found that both methods resulted in similar average blood sugar levels and infection rates, but the standard feeding plan provided better nutrition, helping maintain a healthier nitrogen balance.
Who this helps: This benefits patients who require total parenteral nutrition by guiding healthcare providers on effective feeding strategies.
Plain English This study looked at how a substance called nitric oxide affects the immune response in mice infected with a parasite called Trypanosoma brucei. Researchers found that although the infection levels were similar in both the nitric oxide-deficient mice and the control mice, the nitric oxide-deficient mice had more immune cells responding to the infection, suggesting that the absence of nitric oxide may help the immune system fight the parasite. This matters because it reveals how nitric oxide can influence immune responses, which could lead to better treatments for infections.
Who this helps: This helps patients with parasitic infections.
Effects of plasma exposure on cultured hepatocytes: Implications for bioartificial liver support.
1996
Biotechnology and bioengineering
Matthew HW, Sternberg J, Stefanovich P, Morgan JR, Toner M +2 more
Plain English This study looked at how exposing liver cells, grown in a special setup, to rat plasma affects their function over nine days. The researchers found that as the levels of fatty acids in the plasma increased, the liver cells accumulated more fat, which hindered their ability to make urea, a waste product. Returning the cells to a regular culture medium after plasma exposure helped restore their function, indicating that careful management of plasma exposure is important in developing treatments that support liver function.
Who this helps: This benefits patients with liver failure and doctors working on liver support therapies.
Bone marrow nitric oxide production and development of anemia in Trypanosoma brucei-infected mice.
1995
Infection and immunity
Mabbott N, Sternberg J
Plain English Researchers studied mice infected with Trypanosoma brucei, a parasite that causes severe anemia. They found that these mice lost about 50% of their red blood cells within a week, and this loss was linked to increased production of nitric oxide in the bone marrow, which slows down the creation of blood cells. When the scientists blocked the production of nitric oxide, the anemia in the infected mice improved significantly.
Who this helps: This helps patients suffering from anemia related to Trypanosoma brucei infections.
Inhibition of nitric oxide synthesis leads to reduced parasitemia in murine Trypanosoma brucei infection.
1994
Infection and immunity
Sternberg J, Mabbott N, Sutherland I, Liew FY
Plain English This study looked at how stopping the production of a substance called nitric oxide (NO) affects infection in mice infected with Trypanosoma brucei, the parasite that causes sleeping sickness. The researchers found that when NO production was reduced, there was a significant decrease in the number of parasites in the blood, showing that inhibiting NO can help fight this infection. Specifically, it was noted that NO does not kill the parasite directly.
Who this helps: This helps patients with sleeping sickness by pointing to new treatment approaches.
Semiconductor laser-induced fluorescence detection in capillary electrophoresis using a cyanine dye.
1993
Journal of chromatography. A
Chen FT, Tusak A, Pentoney S, Konrad K, Lew C +2 more
Plain English This study looked at a special dye called Cy5 used in a process called capillary electrophoresis, which helps separate and analyze DNA. The researchers found that the dye can be effectively detected using a semiconductor laser, reaching purity levels of over 90% for the DNA primer they created, with a sensitivity strong enough to detect very low concentrations (around 10 parts per billion). This is important because it improves the accuracy and efficiency of DNA sequencing, making it easier for researchers to study genetic information.
Who this helps: Patients and doctors involved in genetic research and testing.
Nitric oxide mediates suppression of T cell responses in murine Trypanosoma brucei infection.
1992
European journal of immunology
Sternberg J, McGuigan F
Plain English This study looked at how a parasite, Trypanosoma brucei, weakens the immune response in infected mice. The researchers found that these infections trigger immune cells called macrophages to produce nitric oxide, which suppresses the activity of T cells, important players in the immune system. Specifically, they observed that the production of nitric oxide was linked to a significant decline in the ability of T cells to grow and multiply, indicating that the immune response is diminished.
Who this helps: This information helps doctors understand how to better treat infections caused by Trypanosoma brucei and may benefit patients affected by these infections.
Plain English This study looked at the genetic behavior of African trypanosomes, which are parasites that affect both humans and animals. Researchers found that these parasites can exchange genetic material between different groups, revealing that they can mix genes in ways that were previously not well understood. Understanding how this genetic exchange occurs is important because it helps explain how these parasites adapt and may become harder to treat.
Who this helps: This benefits researchers and healthcare providers working to combat infections caused by African trypanosomes.
Evidence that the mechanism of gene exchange in Trypanosoma brucei involves meiosis and syngamy.
1990
Parasitology
Turner CM, Sternberg J, Buchanan N, Smith E, Hide G +1 more
Plain English This study looked at how a parasite called Trypanosoma brucei, which causes diseases like sleeping sickness, exchanges genes during its lifecycle. Researchers found that when they combined three different clones of the parasite, they produced hybrid offspring that showed signs of genetic mixing, such as having different combinations of genes. Specifically, they observed that hybrids had variations reflecting traits from both parent strains, indicating that genetic exchange happened more often than not during their development in tsetse flies.
Who this helps: This research helps scientists and doctors understand how the parasite evolves, which can inform treatment strategies for affected patients.
Neuropeptide expression in cultures of adult sensory neurons: modulation of substance P and calcitonin gene-related peptide levels by nerve growth factor.
1989
Neuroscience
Lindsay RM, Lockett C, Sternberg J, Winter J
Plain English This study looked at how nerve growth factor affects two important neuropeptides, substance P and calcitonin gene-related peptide, in adult sensory neurons from rats. It found that when neurons were kept in the presence of nerve growth factor, levels of these peptides stayed high for at least 14 days, with levels 10-15 times higher compared to those without nerve growth factor. This matters because understanding how nerve growth factor influences these neuropeptides can help develop therapies for pain and sensory disorders.
Who this helps: Patients with chronic pain or sensory nerve injuries.
Gene exchange in African trypanosomes: frequency and allelic segregation.
1989
Molecular and biochemical parasitology
Sternberg J, Turner CM, Wells JM, Ranford-Cartwright LC, Le Page RW +1 more
Plain English This study investigated how frequently a type of genetic exchange occurs among a specific pair of African trypanosome forms. Researchers found that mating happens often in a particular stage of the trypanosome's life cycle, with evidence of genetic mixing at five different locations in their DNA. These findings are important because they reveal how genetic diversity is created in these parasites, which can impact their ability to survive and cause disease.
Who this helps: This helps researchers studying diseases caused by trypanosomes, such as sleeping sickness, as it provides insights into their genetic behavior.
Gene exchange in African trypanosomes: characterisation of a new hybrid genotype.
1988
Molecular and biochemical parasitology
Sternberg J, Tait A, Haley S, Wells JM, Le Page RW +2 more
Plain English This study focused on a new type of hybrid trypanosome, a parasite responsible for sleeping sickness, created when two different strains of the parasite mixed during transmission by tsetse flies. The researchers found that this hybrid has a unique set of genes and DNA, which includes both typical and unusual inheritance patterns. Understanding these genetic changes is important because it can help in developing better treatments and control strategies against this disease.
Who this helps: This benefits patients suffering from sleeping sickness and the doctors treating them.
Plain English This study looked at the amount of DNA in different forms of the Trypanosoma congolense parasite, which is responsible for sleeping sickness in humans. Researchers found that the DNA content is stable across different stages of the parasite's life cycle, measuring 0.1 picograms for one clone and 0.09 picograms for another clone. Understanding the DNA content of this parasite is important for developing better treatments and vaccines against the diseases it causes.
Who this helps: This helps researchers and healthcare providers working on treatments for diseases caused by this parasite.
Nerve growth factor (NGF) regulates adult rat cultured dorsal root ganglion neuron responses to the excitotoxin capsaicin.
1988
Neuron
Winter J, Forbes CA, Sternberg J, Lindsay RM
Plain English This study looked at how nerve growth factor (NGF) affects sensory neurons in rats when exposed to capsaicin, the substance that makes chili peppers hot. The researchers found that about 50% of the sensory neurons responded to capsaicin when NGF was present, but if NGF was removed, those neurons became unresponsive. Reintroducing NGF after a few days restored their sensitivity to capsaicin.
Who this helps: This benefits researchers studying pain and nerve responses, as well as potential treatments for conditions like chronic pain.
Distribution of fibronectin, laminin and entactin in the environment of migrating neural crest cells in early mouse embryos.
1986
Journal of embryology and experimental morphology
Sternberg J, Kimber SJ
Plain English This study looked at three important proteins—fibronectin, laminin, and entactin—in mouse embryos to understand how they affect the movement of specific cells called neural crest cells. The researchers found that these proteins are located mainly in certain areas of the embryo where these cells are migrating, with fibronectin being particularly abundant and likely influencing their movement. This is important because understanding how these proteins work can help researchers learn more about cell migration, which is crucial for proper development and could have implications for medical conditions related to cell movement.
Who this helps: This helps researchers and medical professionals working with developmental biology and related diseases.
The relationship between emerging neural crest cells and basement membranes in the trunk of the mouse embryo: a TEM and immunocytochemical study.
1986
Journal of embryology and experimental morphology
Sternberg J, Kimber SJ
Plain English This study looked at how neural crest cells, which are important for developing the nervous system, move from the neural tube in mouse embryos and how this process relates to the surrounding basement membranes. The researchers found that in the area where these cells start to migrate, the basement membrane was either missing or had less type-IV collagen, which is crucial for the cells' ability to move. These findings are important because understanding this relationship can improve knowledge about development and potential issues in conditions where cell migration is disrupted.
Who this helps: This helps researchers studying developmental biology and conditions related to cell migration.