Practice Location

ST. JUDE CHILDREN'S RESEARCH HOSPITAL
MEMPHIS, TN 38105-2794

Phone: (901) 495-3006

What does USMAN YUSUF research?

Dr. Yusuf studies various aspects of health and disease in both environmental and clinical settings. His research includes assessing the safety of milk products for public health, understanding immune responses in children with tuberculosis, and examining treatment methods for pediatric blood cancers. He has also explored how various treatments, like stem cell transplants, affect young patients with severe conditions. By analyzing the effectiveness of different therapies, including chemotherapy and surgical interventions, he provides valuable insights into improving patient care. Additionally, he delves into the environmental factors affecting freshwater ecosystems, indicating a holistic approach to health.

Key findings

  • In his study on milk products, 28.37% of 215 samples were found to contain harmful bacteria, highlighting a public health risk.
  • For HIV-negative tuberculosis patients, CD4 cell counts improved from 557 before treatment to 954 after, illustrating the effectiveness of therapy on immune recovery.
  • In a stem cell transplant study for pediatric blood cancers, 91% of 22 children had successful immune recovery post-procedure, leading to fewer infections and only 9% experiencing severe complications.
  • Treatment with cidofovir resulted in 98% of 57 pediatric patients with adenovirus infections showing symptom relief and undetectable virus levels.
  • In a study of bone marrow transplantation for children with myelodysplastic syndrome, a survival rate of 50% was observed after three years.

Frequently asked questions

Does Dr. Yusuf study tuberculosis?
Yes, Dr. Yusuf investigates tuberculosis in children, specifically looking at immune responses and treatment outcomes.
What treatments has Dr. Yusuf researched for pediatric cancers?
He has researched various treatments for pediatric blood cancers, including stem cell transplants and intensive chemotherapy approaches.
Is Dr. Yusuf's work relevant to pediatric patients?
Absolutely, much of his research focuses on improving treatments and outcomes for children with serious diseases like tuberculosis and blood cancers.
Does Dr. Yusuf study environmental factors?
Yes, he also examines how environmental elements affect aquatic organisms and public health, particularly concerning fresh water.
How does Dr. Yusuf's research impact public health?
His studies on food safety and infectious diseases help highlight risks and improve health guidelines for consumers.

Publications in plain English

Identification and antibiogram pattern offrom the milk and milk products in and around Jammu region.

2018

Veterinary world

Yusuf U, Kotwal SK, Gupta S, Ahmed T

Plain English
This study looked at 215 samples of various milk and milk products from the Jammu region to check for harmful bacteria and how sensitive they are to antibiotics. It found that 28.37% of the samples had dangerous bacteria, with ice cream having the highest prevalence. The bacteria were highly sensitive to gentamicin and resistant to penicillin G, raising concerns about public health due to the potential contamination of milk products. Who this helps: This helps patients and consumers by highlighting risks in milk products.

PubMed

The effect of dissolved organic matter (DOM) on sodium transport and nitrogenous waste excretion of the freshwater cladoceran (Daphnia magna) at circumneutral and low pH.

2013

Comparative biochemistry and physiology. Toxicology & pharmacology : CBP

Al-Reasi HA, Yusuf U, Smith DS, Wood CM

Plain English
This study looked at how dissolved organic matter (DOM) in water affects sodium levels and waste excretion in a small water animal called Daphnia magna, under different acidity levels. The researchers found that the different types of DOM did not change sodium levels, but low pH increased the excretion of ammonia and urea. Specifically, ammonia excretion was lower when certain types of DOM were present, suggesting they might help protect Daphnia in acidic conditions. Who this helps: This research benefits aquatic scientists and environmentalists studying the health of freshwater ecosystems.

PubMed

CD4+ T-lymphopenia in HIV negative tuberculous patients at King Khalid University Hospital in Riyadh, Saudi Arabia.

2011

European journal of medical research

Al-Aska A, Al-Anazi AR, Al-Subaei SS, Al-Hedaithy MA, Barry MA +4 more

Plain English
This study looked at the levels of immune cells called CD4 and CD8 in HIV-negative patients with tuberculosis (Tb) at a hospital in Saudi Arabia. Researchers found that these patients had significantly lower CD4 and CD8 cell counts compared to healthy individuals before treatment, with CD4 counts at about 557 in Tb patients versus over 1,132 in healthy controls. After treatment, their CD4 cell counts improved to about 954, showing that treatment helps boost the immune system. Who this helps: This information benefits patients with tuberculosis and doctors treating them.

PubMed

An interesting iatrogenic superior vena cava syndrome following open-heart surgery.

2007

Paediatric anaesthesia

Yildirim I, Dilek E, Emrah E, Yusuf U, Halit Proff V

PubMed

Cidofovir for the treatment of adenoviral infection in pediatric hematopoietic stem cell transplant patients.

2006

Transplantation

Yusuf U, Hale GA, Carr J, Gu Z, Benaim E +7 more

Plain English
The study looked at the use of a drug called cidofovir to treat adenovirus infections in children who had received stem cell transplants. Out of 57 patients, 98% of those treated with cidofovir saw their symptoms disappear and the virus become undetectable, although one patient sadly died from complications. This is important because adenovirus can be very dangerous for these young patients, and early treatment with cidofovir can help improve their outcomes. Who this helps: This helps pediatric patients who have had stem cell transplants and are at risk for adenovirus infections.

PubMed

Rapid immune reconstitution after a reduced-intensity conditioning regimen and a CD3-depleted haploidentical stem cell graft for paediatric refractory haematological malignancies.

2006

British journal of haematology

Chen X, Hale GA, Barfield R, Benaim E, Leung WH +11 more

Plain English
This study looked at a new treatment approach for children with hard-to-treat blood cancers using a specific kind of stem cell transplant from a family member. The researchers found that 91% of the 22 children treated had successful immune recovery after the procedure, with fewer infections and only 9% experiencing severe complications. This is important because it means children could recover faster and have a lower risk of serious illness after their transplant. Who this helps: This helps pediatric patients with stubborn blood cancers and their families.

PubMed

Outcome of hematopoietic stem cell transplantation for pediatric patients with therapy-related acute myeloid leukemia or myelodysplastic syndrome.

2006

Pediatric blood & cancer

Woodard P, Barfield R, Hale G, Horwitz E, Leung W +9 more

Plain English
This study looked at how effective stem cell transplants are for children with therapy-related acute myeloid leukemia (t-AML) and myelodysplastic syndrome (t-MDS), which are serious conditions that follow previous cancer treatments. Researchers found that just 15.4% of patients survived for three years after the transplant, with a high risk of non-relapse mortality (59.6%), meaning many children died from issues related to the transplant rather than their cancer returning. The study highlights the need for better strategies to lower these fatal complications and improve survival rates for these young patients. Who this helps: This helps pediatric patients with t-AML and t-MDS and their doctors.

PubMed

Effective donor lymphohematopoietic reconstitution after haploidentical CD34+-selected hematopoietic stem cell transplantation in children with refractory severe aplastic anemia.

2004

Bone marrow transplantation

Woodard P, Cunningham JM, Benaim E, Chen X, Hale G +7 more

Plain English
This study looked at a new treatment approach for children with severe aplastic anemia who didn’t respond to standard treatments. Researchers found that using a specific type of stem cell from a closely matched donor could effectively restore blood cell production in some patients; two out of three children treated are now healthy and have normal blood counts more than a year later. This matters because it shows a potential new option for kids who have no other treatment choices and severe infections. Who this helps: Children with severe aplastic anemia and their families.

PubMed

Allogeneic bone marrow transplantation in children with myelodysplastic syndrome or juvenile myelomonocytic leukemia: the Seattle experience.

2004

Bone marrow transplantation

Yusuf U, Frangoul HA, Gooley TA, Woolfrey AE, Carpenter PA +6 more

Plain English
This study looked at how effective allogeneic bone marrow transplantation (BMT) is for children with myelodysplastic syndrome (MDS) or juvenile myelomonocytic leukemia (JMML). Out of 94 children treated, about 50% were still alive three years later, with survival rates varying based on their specific condition: 74% for those with less severe forms (like refractory anemia), but only 33% for those with JMML. This is important because it shows that BMT can be a viable and potentially curative option for children with these blood disorders. Who this helps: This helps children with MDS and JMML and their families by providing treatment options that can lead to long-term survival.

PubMed

Encephalopathy in pediatric patients after allogeneic hematopoietic stem cell transplantation is associated with a poor prognosis.

2004

Bone marrow transplantation

Woodard P, Helton K, McDaniel H, Khan RB, Thompson S +10 more

Plain English
This study looked at 405 children who received stem cell transplants and found that 26 of them (about 6.4%) developed a serious brain condition called encephalopathy. Most of these children did not fully recover; only 15% returned to normal brain function, and 35% of those who improved survived long-term. These findings highlight the need for better ways to diagnose and treat encephalopathy, as it can lead to very poor outcomes for young patients. Who this helps: This helps patients and their families dealing with the complications of stem cell transplants.

PubMed

Etiology and outcome of graft failure in pediatric hematopoietic stem cell transplant recipients.

2003

Journal of pediatric hematology/oncology

Woodard P, Tong X, Richardson S, Srivastava DK, Horwitz EM +8 more

Plain English
This study looked at why some children who receive bone marrow transplants experience graft failure, which is when the transplant does not take properly. Out of 309 children studied, 4 had primary graft failure and 7 had secondary graft failure, with certain factors like having a non-cancer diagnosis and a lower dose of stem cells linked to a higher chance of failure. Understanding these causes can help improve treatment plans and monitoring, leading to better outcomes for pediatric patients undergoing these transplants. Who this helps: This helps pediatric patients receiving bone marrow transplants and their doctors.

PubMed

Survival with combined modality therapy after intracerebral recurrence of pleuropulmonary blastoma.

1998

Medical and pediatric oncology

Yusuf U, Dufour D, Jenrette JM, Abboud MR, Laver J +1 more

Plain English
The research focused on treating a 3-year-old boy with a rare cancer called pleuropulmonary blastoma that had spread to his brain. After initial treatment, the cancer came back in the brain, but with a new combination of surgery, high-dose chemotherapy, and radiation therapy, he has remained cancer-free for 24 months. This approach is significant because previously, brain metastases from this cancer were usually fatal, suggesting that this treatment could improve survival for other patients with similar conditions. Who this helps: Patients with pleuropulmonary blastoma and their families.

PubMed

Transient therapy-related myelodysplastic syndrome associated with monosomy 7 and 11q23 translocation.

1997

Leukemia

Laver JH, Yusuf U, Cantu ES, Barredo JC, Holt LB +1 more

Plain English
This study looked at two patients who developed a blood disorder called myelodysplastic syndrome (MDS) after undergoing chemotherapy for cancer. Both patients initially showed severe symptoms and chromosomal abnormalities, but they experienced a surprising recovery without needing a bone marrow transplant, with their blood counts returning to normal over time. This finding is important because it suggests that some patients with MDS related to previous cancer treatment may not need immediate transplant, allowing for more careful monitoring instead. Who this helps: This benefits cancer patients who develop therapy-related blood disorders.

PubMed

Successful treatment of relapsed infant acute lymphoblastic leukemia with intensive antimetabolite-based chemotherapy.

1997

Medical and pediatric oncology

Barredo JC, Yusuf U, Abboud M, Laver J

Plain English
This study focused on treating two infants with acute lymphoblastic leukemia (ALL) who experienced a relapse after initial treatments. The researchers used an intensive chemotherapy approach involving antimetabolites, and both infants achieved long-term survival—one for 48 months and the other for 30 months. This method is significant because it shows that high-dose chemotherapy can lead to better outcomes for infants with this type of cancer without needing additional brain radiation, which can have harmful side effects. Who this helps: This helps young patients with relapsed acute lymphoblastic leukemia and their families.

PubMed

Progressive autologous graft-versus-host disease induced by cyclosporin A.

1996

Bone marrow transplantation

Barredo JC, Yusuf U, Hahn A, Abboud MR, Laver J

Plain English
This study looked at a serious condition called graft-versus-host disease (GVHD) that can occur after bone marrow transplants, specifically in a child being treated for leukemia. The researchers found that this child experienced severe and progressive GVHD after receiving a common treatment, cyclosporin A, which is usually thought to cause mild and manageable symptoms. Understanding this serious side effect is important because it highlights that cyclosporin A can lead to significant health issues in some patients, rather than just mild ones. Who this helps: This helps doctors and patients by providing crucial information about the risks of cyclosporin A in bone marrow transplant treatments.

PubMed

Congenital heart disease masking pulmonary tuberculosis in children.

1989

East African medical journal

Ifere OA, Aikhionbare HA, Yusuf U

Plain English
This study looked at two children who had congenital heart disease and were also suffering from pulmonary tuberculosis (PTB), but the heart condition made it harder to spot the tuberculosis. The researchers found that the signs of the heart disease were so prominent that they hid the symptoms of PTB, making diagnosis challenging. This is important because it shows that doctors need to be alert for TB in children with heart problems to ensure they receive the right treatment. Who this helps: This helps doctors treating children with congenital heart disease.

PubMed

Frequent Co-Authors

Paul Woodard Rupert Handgretinger J C Barredo Ely Benaim Edwin M Horwitz Deo Kumar Srivastava Wing Leung M R Abboud J Laver Gregory A Hale

Physician data sourced from the NPPES NPI Registry . Publication data from PubMed . Plain-English summaries generated by AI. Not medical advice.