No abstract available.
Adult ; Anti-Bacterial Agents/therapeutic use ; Bacterial Proteins/chemistry/genetics/metabolism ; Brucella melitensis/classification/genetics/*isolation & purification ; Brucellosis/*diagnosis/drug therapy/microbiology ; Doxycycline/therapeutic use ; Humans ; Magnetic Resonance Imaging ; Male ; Phylogeny ; Polymerase Chain Reaction ; Republic of Korea ; Rifampin/therapeutic use ; Sequence Analysis, DNA ; Spondylitis/diagnostic imaging

Ael is a rare blood type which has the least amount of A antigen among A subgroups. It can be detected by special tests performed to resolve the discrepancy between red cell and serum typing in routine serological typing. The presence of A antigen on Ael red cell is demonstrable only by adsorption and elution tests. An Ael individual does not secret A substance in the saliva and may have anti-A antibody in the serum which is usually less reactive with the reagent red cells than anti-B antibody. In Korea, Ael02 has been reported more frequently than other Ael alleles. We report a case of Ael02/O04 who presented as typical phenotype O with strong anti-A and anti-B antibodies and no A antigen detected even by adsorption and elution tests. The case has been proved to be Ael02/O04 by direct sequencing analysis. In individuals with history of discrepancies in the results of ABO phenotyping, ABO genotyping is needed for an accurate evaluation of their blood type.
ABO Blood-Group System/classification/*genetics ; Alleles ; Child ; Genotype ; Heterozygote ; Humans ; Male ; Pedigree ; Phenotype ; Sequence Analysis, DNA

BACKGROUND: Blood loss due to laboratory phlebotomy among neonates is correlated with anemia as well as transfusion. In this study, microcolumn agglutination cards for performing ABO & RhD blood typing and direct antiglobulin tests in neonates were evaluated and compared with other established systems. Also, the blood group antibody production rates according to the age were calculated to determine the upper age limit for the new method. METHODS: Eighty subjects were tested by using the DianaGel Neonatal cards (Diagnostic Grifols, Barcelona, Spain), and the results were compared with those of the slide methods for ABO and RhD blood typing, and the DiaMed-ID DC-Screening I test (DiaMed, Morat, Switzerland) for direct antiglobulin tests. A total of 546 subjects who were under 12 months old were tested for the ABO back-typing, and 58 subjects with the AB blood type were excluded. RESULTS: The results of the DianaGel Neonatal card were in agreement with those of the conventional methods for all the subjects. Only one subject showed a discrepant result for the DAT between the DianaGel and DiaMed methods. Blood group antibodies were detected in 29 out of 169 (17.2%) one-day-old neonates, in eight out of 34 (23.5%) infants between one and three months of age and in 81 out of 96 (84.4%) infants between six and twelve months of age. CONCLUSION: The DianaGel Neonatal card showed at least equivalent performance as compared to that of the conventional methods, and it showed advantages for a low blood volume requirement and stronger agglutination grades. The DianaGel card is a suitable alternative for blood typing and DAT in infants under the age of 3 months and who do not necessarily need back-typing of the blood groups due to the low production rate of antibodies.
Agglutination ; Anemia ; Antibodies ; Antibody Formation ; Blood Group Antigens ; Blood Grouping and Crossmatching ; Blood Volume ; Coombs Test ; Humans ; Infant ; Infant, Newborn ; Phlebotomy

Sodium-glucose cotransporter 2 (SGLT2) inhibitors are a new class of oral antihyperglycemic drugs; inhibition of the cotransporter allows for increased renal glucose excretion that consequently leads to reduced plasma glucose level. We report a rare case of a 73-year-old woman with type 2 diabetes mellitus who developed severe ketoacidosis caused by an SGLT2 inhibitor. At admission, severe ketoacidosis with arterial PH 6.99 was observed, though her serum glucose level of 232 mg/dL was not excessively high. It is necessary to pay attention to patients with type 2 diabetes being treated with an SGLT2 inhibitor, as anorexia, diarrhea, dehydration, and weight loss can develop in conjunction with a high fat/protein diet.
Aged ; Anorexia ; Blood Glucose ; Dehydration ; Diabetes Mellitus ; Diabetes Mellitus, Type 2 ; Diabetic Ketoacidosis* ; Diarrhea ; Diet ; Female ; Glucose ; Humans ; Hydrogen-Ion Concentration ; Ketosis ; Weight Loss