Publications by authors named "O Nathalang"

Serological typing of MNS polymorphic antigens - M, N, S and s - remains a fundamental technique in transfusion medicine and prenatal care, providing essential information for matching blood donors and recipients and managing haemolytic disease. Although this method is well proven and routinely used, it is not a comprehensive solution, as it has several weaknesses. Alternatively, multiplex polymerase chain reaction (PCR) is a commonly used genotyping tool due to its potency and ability to amplify several DNA targets simultaneously in a single reaction.

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Article Synopsis
  • The study aimed to evaluate how red blood cells (RBCs) can be coated with penicillin and to analyze the immune reactions in Thai patients' blood samples against these coated RBCs.
  • It was found that penicillin-induced immunologic hemolytic anemia (IHA) may be linked to antibodies (IgG) that attack penicillin-coated RBCs, with evidence of some donors also having low levels of penicillin antibodies (often IgM).
  • Results showed that out of 304 patients, 17 (5.59%) tested positive for antipenicillin using coated RBCs, while only 3 (1.22%) of 246 blood donors showed positive reactions; importantly, no links were found between patient characteristics
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Background: Reduced or absent H antigens on red cells with the (para-)Bombay phenotype can arise from FUT1 gene mutations, impacting the structure and function of 1,2-L-fucosyltransferase 1 (1,2-L-FucT1). Here, we identified the novel mutations in one patient displaying the para-Bombay phenotype and examined the potential molecular mechanisms underlying this phenotype.

Materials And Methods: ABH antigens and antibodies were detected in patient's blood and saliva using serological methods.

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Background: The Kell blood group system is clinically important in transfusion medicine, particularly in patients with antibodies specific to Kell antigens. To date, genetic variations of the Kell metallo-endopeptidase () gene among Thai populations remain unknown.

Objective: This study aimed to determine the frequencies of and alleles among Thai blood donors using an in-house polymerase chain reaction-sequence-specific primer (PCR-SSP) method.

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(1) Background: Understanding how advanced cancers evade host innate and adaptive immune opponents has led to cancer immunotherapy. Among several immunotherapeutic strategies, the reversal of immunosuppression mediated by regulatory T cells in the tumor microenvironment (TME) using blockers of immune-checkpoint signaling in effector T cells is the most successful treatment measure. Furthermore, agonists of T cell costimulatory molecules (CD40, 4-1BB, OX40) play an additional anti-cancer role to that of checkpoint blocking in combined therapy and serve also as adjuvant/neoadjuvant/induction therapy to conventional cancer treatments, such as tumor resection and radio- and chemo- therapies.

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