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Transient hypogammaglobulinemia of infancy
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Transient hypogammaglobulinemia of infancy is a form of hypogammaglobulinemia appearing after birth, leading to a reduction in the level of IgG, and also sometimes IgA [1] [2] and IgM. [3]

It can result in increased infections, but it can also present without symptoms. [4]

Signs and symptoms

Allergy disorders are the second most common feature, with upper and lower respiratory tract infections accounting for the majority of cases. In addition to developmental delay and cardiac defects, [5] rare manifestations include gastroenteritis, invasive infections, and urinary tract infections. [6] [7] [8]

Causes

It is unknown what specifically causes infantile transient hypogammaglobulinemia. The following are some of the hypothesized mechanisms: 1) defective T cells that prevent B cells from stimulating the proper synthesis of antibodies; 2) maternal IgG suppresses the production of IgG; 3) low levels of vital cytokines; and 4) genetic variations in families predisposed to immunodeficiency. [9] [10] [11]

Mechanism

Normally, a newborn's immunoglobulins come from the mother during pregnancy and wane after birth until 3–6 months of age, when the infant begins to start to produce their own IgG. However, in transient hypogammaglobulinemia of infancy, the IgG synthesis is delayed, and the hypogammaglobulinemia is prolonged beyond age 6 months. [12]

Diagnosis

Transient hypogammaglobulinemia of infancy can be identified if the mean age-specific reference values for serum IgG levels are decreased by more than two standard deviations. [13]

Epidemiology

Transient hypogammaglobulinemia of infancy is thought to affect between 0.061 and 1.1 out of every 1000 live births. [14] [15]

See also

References

  1. ^ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. p. 818. ISBN  978-1-4160-2999-1.
  2. ^ "Transient Hypogammaglobulinemia of Infancy: Immunodeficiency Disorders: Merck Manual Professional". Retrieved 2008-03-01.
  3. ^ Kiliç SS, Tezcan I, Sanal O, Metin A, Ersoy F (2000). "Transient hypogammaglobulinemia of infancy: clinical and immunologic features of 40 new cases". Pediatr Int. 42 (6): 647–50. doi: 10.1046/j.1442-200x.2000.01301.x. PMID  11192522. S2CID  25895833.
  4. ^ Hsueh KC, Chiu HH, Lin HC, Hsu CH, Tsai FJ (2005). "Transient hypogammaglobulinemia of infancy presenting as Staphylococcus aureus sepsis with deep neck infection". J Microbiol Immunol Infect. 38 (2): 141–4. PMID  15843860.
  5. ^ Dorsey, Morna J.; Orange, Jordan S. (2006). "Impaired specific antibody response and increased B-cell population in transient hypogammaglobulinemia of infancy". Annals of Allergy, Asthma & Immunology. 97 (5). Elsevier BV: 590–595. doi: 10.1016/s1081-1206(10)61085-x. ISSN  1081-1206. PMID  17165264.
  6. ^ "Clinical features and follow-up of Chinese patients with symptomatic hypogammaglobulinemia in infancy". doi: 10.3760/cma.j.issn.0366-6999.2009.16.008. {{ cite journal}}: Cite journal requires |journal= ( help)
  7. ^ Kutukculer, Necil; Gulez, Nesrin (November 2009). "The outcome of patients with unclassified hypogammaglobulinemia in early childhood". Pediatric Allergy and Immunology: Official Publication of the European Society of Pediatric Allergy and Immunology. 20 (7): 693–698. doi: 10.1111/j.1399-3038.2008.00845.x. ISSN  1399-3038. PMID  19196447. S2CID  25506883.
  8. ^ Artac, Hasibe; Kara, Reyhan; Gokturk, Bahar; Reisli, Ismail (November 2013). "Reduced CD19 expression and decreased memory B cell numbers in transient hypogammaglobulinemia of infancy". Clinical and Experimental Medicine. 13 (4): 257–263. doi: 10.1007/s10238-012-0200-y. ISSN  1591-9528. PMID  22820757. S2CID  26184302.
  9. ^ Wang, Ling-Jen; Yang, Yao-Hsu; Lin, Yu-Tsan; Chiang, Bor-Luen (March 2004). "Immunological and clinical features of pediatric patients with primary hypogammaglobulinemia in Taiwan" (PDF). Asian Pacific Journal of Allergy and Immunology. 22 (1): 25–31. PMID  15366655. Retrieved 7 February 2024.
  10. ^ Whelan, M. A.; Hwan, W. H.; Beausoleil, J.; Hauck, W. W.; Mcgeady, S. J. (2006). "Infants Presenting with Recurrent Infections and Low Immunoglobulins: Characteristics and Analysis of Normalization". Journal of Clinical Immunology. 26 (1). Springer Science and Business Media LLC: 7–11. doi: 10.1007/s10875-006-8144-1. ISSN  0271-9142. S2CID  24144434.
  11. ^ Wang, Helen C.; Whelan, Meg A.; McGeady, Stephen J.; Yousef, Ejaz (2006). "A 5-month-old boy with recurrent respiratory infections, failure to thrive, and borderline elevated sweat chloride levels". Allergy and Asthma Proceedings. 27 (3): 285–288. doi: 10.2500/aap.2006.27.2847. ISSN  1088-5412. PMID  16913275.
  12. ^ Vaillant, Angel A. Justiz; Wilson, Allecia M. (September 4, 2023). "Transient Hypogammaglobulinemia of Infancy". StatPearls Publishing. PMID  31335076. Retrieved February 7, 2024.
  13. ^ Duse, M.; Iacobini, M.; Leonardi, L.; Smacchia, P.; Antonetti, L.; Giancane, G. (January 1, 2010). "Transient hypogammaglobulinemia of infancy: intravenous immunoglobulin as first line therapy". International Journal of Immunopathology and Pharmacology. 23 (1): 349–353. doi: 10.1177/039463201002300134. ISSN  0394-6320. PMID  20378022. S2CID  31079239.
  14. ^ Walker, A M; Kemp, A S; Hill, D J; Shelton, M J (March 1, 1994). "Features of transient hypogammaglobulinaemia in infants screened for immunological abnormalities". Archives of Disease in Childhood. 70 (3). BMJ: 183–186. doi: 10.1136/adc.70.3.183. ISSN  0003-9888. PMC  1029737. PMID  8135560.
  15. ^ Tiller, Thomas L.; Buckley, Rebecca H. (1978). "Transient hypogammaglobulinemia of infancy: Review of the literature, clinical and immunologic features of 11 new cases, and long-term follow-up". The Journal of Pediatrics. 92 (3). Elsevier BV: 347–353. doi: 10.1016/s0022-3476(78)80417-x. ISSN  0022-3476. PMID  632973.

Further reading

External links