During the period 1984-1992, 2 severe cases (1 male, 1 female) of congenital F VII deficiency with intracranial hemorrhage (ICH) were referred to the Department of Pediatrics, Siriraj Hospital Bangkok, Thailand at the ages of 1 and 3 months old. They both responded very well to fresh frozen plasma (FFP) transfusion therapy. Subsequently, both had repeated episodes of ICH (repeated ICH) 5 and 6 times, despite the 10-14 days of replacement therapy for each episode and eventually died at the ages of 11 and 13 months. Since September 1996, another 2 severe cases (2 females) of congenital F VII deficiency who had ICH within their first month of life were referred to us. In order to prevent repeated ICH, we started a prophylactic regime after the second episode of ICH, by giving FFP 10 ml/kg twice a week. The average duration of follow up was 21 months (at 8 and 34 months). All of them (aged 14, and 38 months old) are doing well at this time and free from repeated ICH. From this observation, if there is FFP available, this regime is an effective way to prevent repeated ICH in infants with severe congenital Factor VII deficiency.
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Int J Mol Sci
December 2024
Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland.
Mucopolysaccharidosis (MPS) comprises a group of inherited metabolic diseases. Each MPS type is caused by a deficiency in the activity of one kind of enzymes involved in glycosaminoglycan (GAG) degradation, resulting from the presence of pathogenic variant(s) of the corresponding gene. All types/subtypes of MPS, which are classified on the basis of all kinds of defective enzymes and accumulated GAG(s), are severe diseases.
View Article and Find Full Text PDFLife (Basel)
November 2024
Onco-Hematology, Cell and Gene Therapy and Bone Marrow Transplant Clinic Area, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy.
Inherited factor VII deficiency is the most common rare bleeding disorder, affecting about 1/500,000 individuals without gender predilection. Most of the patients with FVII 20-50% are asymptomatic, but post-traumatic or post-surgical bleeding may often occur since there is not an exact correlation between FVII plasma levels and the bleeding phenotype. We enrolled 19 children and adolescents with FVII levels of 20-35% and 33 controls.
View Article and Find Full Text PDFItal J Pediatr
January 2025
Pediatric Hematology and Oncology, SBU Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey.
Background: Rare bleeding disorders (RBDs) include fibrinogen (Factor I), prothrombin (Factor II), Factor V(FV), combined Factor V and Factor VIII, Factor VII, Factor X, Factor XI, Factor XII, and Factor XIII deficiencies. This group accounts for 3-5% of all factor deficiencies. Different symptoms may occur, ranging from mild or moderate bleeding to serious and life-threatening bleeding, which may not be related to the factor level.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
December 2024
Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan 030000, Shanxi Province, China.
Objective: To investigate the clinical phenotype and molecular pathogenic mechanism of a hereditary coagulation factor V deficiency (FⅤD) family.
Methods: A phase I assay was used to measure coagulation factors II, V, VII, VIII, IX, X, Ⅺ, Ⅻ (FⅡ∶C, FⅤ∶C, FⅦ∶C, FⅧ∶C, FⅨ∶C, FⅩ∶C, FⅪ∶C, FⅫ∶C), activated partial thromboplastin time (APTT) and prothrombin time (PT) to determine the clinical phenotype and molecular pathogenesis of F VD. Prothrombin time (PT) were used for phenotypic identification; high-throughput exome sequencing was applied to screen the whole gene variants, and Sanger sequencing was used to verify the suspected variants in gene; MutationTaster, PolyPhen-2 bioinformatics software was used to predict the pathogenicity of the variants, ClustalX software was used to analyze the amino acid conservatism, and PyMol software was used to simulate the model of the mutant protein.
Front Immunol
December 2024
Department of Academic Affairs, National Jewish Health, Denver, CO, United States.
Granulomas, organized aggregates of immune cells which form in response to (), are characteristic but not exclusive of tuberculosis (TB). Despite existing investigations on TB granulomas, the determinants that differentiate host-protective granulomas from granulomas that contribute to TB pathogenesis are often disputed. Thus, the goal of this narrative review is to help clarify the existing literature on such determinants.
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