Serum 5-S-cysteinyldopa as a predictive biomarker for stem cell transplantation-related complications in children and young adults.

Diffuse hyperpigmentation is common in patients who undergo chemotherapy or stem cell transplantation (SCT). However, only a few studies have reported the relation between skin reactions and SCT-related complications. Serum 5-S-cysteinyldopa (5SCD), a pheomelanin precursor, is elevated in individuals with hyperpigmentation.

Comparison of busulfan pharmacokinetics between four-times-daily and once-daily administration in pediatric patients: a preliminary prospective observational trial.

Therapeutic drug monitoring (TDM) of busulfan (BU) is useful for achieving the target area under the curve (AUC) because its effective plasma-concentration range is narrow. This preliminary observational study evaluated the pharmacokinetic (PK) parameters of BU administered four times daily or once daily to pediatric patients. The plasma concentrations were measured at both the test dose and first dose, and the doses on day 1 and days 2-4 were determined based on each TDM.

Increased response to granulocyte-macrophage colony-stimulating factor in peripheral blood cells and transient manifestations mimicking juvenile myelomonocytic leukemia in a male patient with NEMO deficiency caused by a deep intronic pathogenic variant of IKBKG.

X-linked NF-κB essential modulator (NEMO) deficiency is a primary immunodeficiency characterized by combined immunodeficiency and ectodermal dysplasia. Monocytes from the patients demonstrate a severely impaired response to tissue necrosis factor or lipopolysaccharide, whereas hyper-inflammation is found in some patients. Juvenile myelomonocytic leukemia (JMML) is a pediatric malignancy caused by hypersensitivity to granulocyte-macrophage colony-stimulating factor (GM-CSF) and aberrant RAS signaling activation.

Survey of Transitional Care Between Pediatrics and Obstetrics/Gynecology in Japan.

This study's aim was to determine the actual status of transitional care for patients with pediatric cancer (PPCs) in Japan by surveying obstetricians/gynecologists. A questionnaire survey on transitional medicine was conducted in the form of an online questionnaire at 579 major training facilities nationwide, which were registered with the Japanese Society of Obstetrics and Gynecology. While 40% of the facilities had received referrals for PPCs, only 13% provided transitional care specifically for PPCs.

Mouse Cloning Using Outbred Oocyte Donors and Nontoxic Reagents.

Somatic cell nuclear transfer (SCNT) technology has become a useful tool for animal cloning, gene manipulation, and genomic reprogramming research. However, the standard mouse SCNT protocol remains expensive, labor-intensive, and requires hard work for many hours. Therefore, we have been trying to reduce the cost and simplify the mouse SCNT protocol.