The Tohoku journal of experimental medicine
-
Tohoku J. Exp. Med. · Jul 2023
ReviewImpact of Octacalcium Phosphate/Gelatin (OCP/Gel) Composite on Bone Repair in Refractory Bone Defects.
In clinical settings, bone grafting is frequently used to treat bone defects. Therefore, the development of bone graft substitutes with superior bone formation ability is expected, instead of autogenous bone grafting. ⋯ This review describes the development and preclinical results of OCP and OCP/gelatin (OCP/Gel) composites and prospects for future applications in orthopedics. The development of bone graft substitutes that achieve a high degree of biodegradability and strength will be needed for the clinical application of OCP composites in orthopedics in the future.
-
Tohoku J. Exp. Med. · Apr 2023
Review Case ReportsAnti-glutamic Acid Decarboxylase Antibody-Positive Gestational Diabetes Mellitus with Autoimmune Type 1 Diabetes Mellitus in the Early Postpartum Period: A Case Report and Literature Review.
Gestational diabetes mellitus (GDM) is a state of pre-diabetic impaired glucose tolerance initially occurring during pregnancy. Although abnormalities in glucose metabolism normally resolve rapidly after delivery, women with GDM have a higher lifetime risk of developing diabetes mellitus than those without GDM; thus, postpartum healthcare is essential. Of all GDM patients, 5%-10% test positive for diabetes-related autoantibodies, which increase the risk of developing type 1 diabetes mellitus (T1DM). ⋯ Her insulin secretory capacity was preserved at 1 year after parturition, suggesting either slowly progressive insulin-dependent T1DM or latent autoimmune diabetes in adults. This was a rare case of slowly progressive insulin-dependent T1DM or latent autoimmune diabetes in adults in the early postpartum period, but the fact that GADA was positive during pregnancy enabled early treatment without overlooking it. Measuring diabetes-related autoantibodies in patients considered to be at a high risk for T1DM, such as those who are of slim build, young, or suffering from autoimmune thyroid disorders, may be important for appropriate individualized follow-up.
-
Tohoku J. Exp. Med. · Nov 2022
ReviewContribution of Inherited Variants to Hereditary Cancer Syndrome Predisposition.
Cancer is a clonal disease that develops as a result of the changes on the genetic material by various factors in micro/macro environment. It has a multi-step development process. In some cancer types, genetic factors allow this multi-step process to proceed easily. ⋯ In our study, targeted multi-gene panel was diagnostic in nearly one third of the patients with personal/familial cancer syndromes. Molecular diagnosis in familial cancer syndromes is important in terms of predictive diagnosis and family screening, as well as patient follow-up and early prophylactic surgery. The predisposition for hereditary cancer syndromes can be determined according to pre-test evaluation, figuring out the inheritance type with pedigree analysis, cancer type and the genetic analysis for appropriate susceptibility genes.
-
Tohoku J. Exp. Med. · Nov 2022
ReviewThe Historical Epidemiology of Human Monkeypox: A Review of Evidence from the 1970 Emergence to the 2022 Outbreak.
Human Monkeypox (HMPX) outbreak in the year 2022 occurs in many countries outside of the African regions, a common location of such outbreaks, with a considerable rate of human-to-human transmission, which was an uncommon route of infection before. The epidemiological reports also represent a sharping pace of infection spreading between communities rather than in previous outbreaks as the following pace of afflictions is unpredictable. Also, the cautions regarding the sexually transmitted infection of the such virus have been raised in this outbreak. ⋯ As a consequence, the World Health Organization (WHO) has declared the 2022 HMPX outbreak as an "Atypical" phenomenon compared to its previous characteristics. To better recognize the properties of this outbreak, herein we systematically described and compared the historical evidence of monkeypox virus outbreaks in the aspects of epidemiological, clinical, and molecular evolutions since its emergence, as well as an explanation of the previous investigations and considerations of WHO and other international health societies over time. The history of human and monkeypox virus interaction during the past 64 years provides viewpoints on preventing strategies and assessing the present and potential future hazards of health implications.
-
Tohoku J. Exp. Med. · Oct 2022
Review Case ReportsTelitacicept for Recalcitrant Cutaneous Manifestations of Systemic Lupus Erythematosus: A Case Report and Review of the Literature.
Telitacicept is a novel humanized, recombinant transmembrane activator and calcium modulator and cyclophilin ligand interactor and the Fc portion (TACI-Fc) fusion protein, designed to neutralize the activity of both B-cell lymphocyte stimulator (BLyS) and a proliferation-inducing ligand (APRIL). On March 9, 2021, telitacicept received its first approval in China for the treatment of adult patients with active, autoantibody-positive systemic lupus erythematosus (SLE). Additionally, on April 15, 2020, the U. ⋯ This is the first case that reports telitacicept successfully treated a SLE patient with refractory cutaneous involvement, which provides a potential therapeutic option for recalcitrant cutaneous manifestations of SLE. Furthermore, we review reported studies of BLyS targeted treatments for mucocutaneous lupus. Telitacicept appears to have activity in refractory cutaneous involvement of SLE and clinical trials are warranted to further assess this potential therapy.