Database: Ovid MEDLINE(R) <2006 to May Week 3 2010> Search Strategy: ------------------------------------------------------------------------------1 glomerulonephritis/ (1225) 2 post streptococcal.tw. (67) 3 1 and 2 (30) 4 acute disease/ (21840) 5 acute.tw. or 4 (128523) 6 3 and 5 (27) 7 limit 6 to (english language and "all child (0 to 18 years)") (22) 8 from 7 keep 1-22 (22) *************************** <1> Unique Identifier 18510827 Status MEDLINE Authors Dursun I. Gunduz Z. Poyrazoglu HM. Gumus H. Yikilmaz A. Dusunsel R. Authors Full Name Dursun, Ismail. Gunduz, Zubeyde. Poyrazoglu, Hakan M. Gumus, Hakan. Yikilmaz, Ali. Dusunsel, Ruhan. Institution Department of Paediatric Nephrology, Erciyes University, Kayseri, Turkey. drdursun@hotmail.com Title Cerebral vasculitis and unilateral sixth-nerve palsy in acute poststreptococcal glomerulonephritis. Source Annals of Tropical Paediatrics. 28(2):155-9, 2008 Jun. Abstract Cerebral vasculitis associated with acute post-streptococcal glomerulonephritis (APSGN) is rare. A 13-year-old girl presented with severe headache, vomiting, oedema and macroscopic haematuria. There was a history of upper respiratory infection 2 weeks previously. A diagnosis of APSGN was made. On admission, she was normotensive and biochemically well balanced. She experienced a tonic-clonic seizure 2 hours later. An MRI brain scan demonstrated multiple areas of abnormal signal intensity in the cerebral and cerebellar white matter, and subarachnoid haemorrhage consistent with vasculitis was diagnosed. A sixth-nerve palsy developed on the 6th day of admission. An elevated anti-streptolysin titre and low serum C3 complement level together with typical features on renal biopsy supported the diagnosis of APSGN. All clinical and laboratory abnormalities improved with corticosteroid therapy, pulse methylprednisolone. APSGN can present with central nervous system abnormalities without hypertension, uraemia and electrolyte disturbance. Publication Type Case Reports. Journal Article. <2> Unique Identifier 16911165 Status MEDLINE Authors Scrace M. Koko K. Authors Full Name Scrace, Melania. Koko, Karen. Institution Royal Flying Doctor Service of Australia, Cairns, Australia. mscrace@rfdsqld.com.au Title An outbreak of acute post-streptococcal glomerulonephritis in remote Far North Queensland. Source Australian Journal of Rural Health. 14(4):160-3, 2006 Aug. Abstract BACKGROUND: To observe and record an outbreak of acute poststreptococcal glomerulonephritis (APSGN) in the Lockhart River community in 2005 and the steps taken by health workers to contain the epidemic. METHODS: A descriptive study of cases of APSGN and children aged from 2 to 12 years involved in the screening program. SETTING: A remote indigenous community in Far North Queensland. PARTICIPANTS: All children aged from 2 to 12 years in the Lockhart River community. RESULTS: Eightyseven children were screened. And 46% were found to have infected scabies. CONCLUSIONS: There were 11 confirmed cases of APSGN over four months from February to May. Infected scabies was the main preceding finding in these children. Publication Type Journal Article. <3> Unique Identifier 16791408 Status MEDLINE Authors Wiwanitkit V. Authors Full Name Wiwanitkit, Viroj. Title Why is acute post-streptococcal glomerulonephritis more common in the pediatric population?. Source Clinical & Experimental Nephrology. 10(2):164, 2006 Jun. Publication Type Letter. <4> Unique Identifier 18544473 Status MEDLINE Authors Kozyro I. Korosteleva L. Chernoshej D. Danner D. Sukalo A. Trendelenburg M. Authors Full Name Kozyro, Ina. Korosteleva, Ludmila. Chernoshej, Dmitryj. Danner, Doris. Sukalo, Alexander. Trendelenburg, Marten. Institution Department of Pediatrics, 2nd Children's Hospital, Belarus State University, Minsk, Belarus. Title Autoantibodies against complement C1q in acute post-streptococcal glomerulonephritis. Source Clinical Immunology. 128(3):409-14, 2008 Sep. Abstract Autoantibodies against complement C1q (anti-C1q) strongly correlate with the occurrence of severe lupus nephritis. Recent data suggest that anti-C1q might also correlate with more severe forms of acute poststreptococcal glomerulonephritis (APSGN). Therefore, we prospectively investigated the role of anti-C1q in 50 children with newly diagnosed APSGN. Associations between anti-C1q and disease manifestations as well as serum complement concentrations were analyzed. Nineteen of the 50 children (38%) with APSGN were positive for anti-C1q compared to 0/40 healthy controls. Levels of anti-C1q correlated negatively with serum C1q and C3 concentrations. Anti-C1q positive patients had significantly higher proteinuria and serum creatinine as well as more often oliguria, hypertension and delayed resolution of the disease than patients without anti-C1q. The data point to a potential pathogenic role of anti-C1q in APSGN. Determination of anti-C1q might help to identify patients at risk for prolonged courses of the disease. Publication Type Journal Article. Research Support, Non-U.S. Gov't. <5> Unique Identifier 19441614 Status MEDLINE Authors Guerrero AP. Musgrave JE. Lee EK. Authors Full Name Guerrero, Anthony P S. Musgrave, James E. Lee, Eric K W. Institution University of Hawai'i John A Burns School of Medicine, Honolulu, HI 96813, USA. GuerreroA@dop.hawaii.edu Title Immune globulin-responsive thrombocytopenia in acute post-streptococcal glomerulonephritis: report of a case in Hawai'i. [Review] [9 refs] Source Hawaii Medical Journal. 68(3):56-8, 2009 Apr. Abstract A 9-year-old boy in Hawai'i presented with bleeding and thrombocytopenia and was subsequently found to have post-streptococcal glomerulonephritis. He recovered completely with intravenous immune globulin, antibiotics, short-term antihypertensive therapy, and supportive management. This case was similar to the 5 cases previously reported in the literature, with the exception that steroids were not used as the primary immune-modulating therapy. [References: 9] Publication Type Case Reports. Journal Article. Review. <6> Unique Identifier 16901429 Status MEDLINE Authors Aeby A. David P. Fricx C. Jissendi P. Blecic S. Van Bogaert P. Authors Full Name Aeby, Alec. David, Philippe. Fricx, Christophe. Jissendi, Patrice. Blecic, Serge. Van Bogaert, Patrick. Institution Department of Pediatric Neurology, Erasme Hospital, Universite Libre de Bruxelles, Brussels, Belgium. alec.aeby@ulb.ac.be Title Posterior reversible encephalopathy syndrome revealing acute poststreptococcal glomerulonephritis. Source Journal of Child Neurology. 21(3):250-1, 2006 Mar. Abstract A case of acute encephalopathy with posterior corticosubcortical vasogenic edema on magnetic resonance imaging is reported. Angiography showed cerebral arterial vasospasm. A diagnosis of acute poststreptococcal glomerulonephritis was made 2 days after admission. This report highlights the fact that acute post-streptococcal glomerulonephritis can be revealed by a posterior reversible encephalopathy syndrome and that cerebral vasospasm can concur with vasogenic edema in this condition. Publication Type Case Reports. Journal Article. <7> Unique Identifier 18820103 Status MEDLINE Authors Payne D. Houtman P. Browning M. Authors Full Name Payne, D. Houtman, P. Browning, M. Institution Department of Immunology, Leicester Royal Infirmary, Leicester, UK. daniel.payne@uhl-tr.nhs.uk Title Acute post-streptococcal glomerulonephritis associated with prolonged hypocomplementaemia. Source Journal of Clinical Pathology. 61(10):1133-5, 2008 Oct. Abstract The case of a 6-year-old boy who presented with acute poststreptococcal glomerulonephritis is reported. C3 levels and complement alternative pathway activity remained low for at least 10 months after presentation, before returning to normal. There was no evidence of other renal disease. This case highlights that hypocomplementaemia in acute post-streptococcal glomerulonephritis may persist for several months, and that prolonged hypocomplementaemia does not exclude this diagnosis. Publication Type Case Reports. Journal Article. <8> Unique Identifier 17535174 Status MEDLINE Authors Blyth CC. Robertson PW. Rosenberg AR. Authors Full Name Blyth, Christopher C. Robertson, Peter W. Rosenberg, Andrew R. Institution Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Randwick, Australia. christopher.blyth@sesiahs.health.nsw.gov.au Title Post-streptococcal glomerulonephritis in Sydney: a 16-year retrospective review. Source Journal of Paediatrics & Child Health. 43(6):446-50, 2007 Jun. Abstract AIM: Post-streptococcal glomerulonephritis (PSGN) is a frequent cause of acute nephritis in children. Numerous studies have described PSGN in high-risk populations yet few data describing PSGN in a low-incidence population exist. This study aimed to describe the epidemiology, clinical manifestations, diagnosis, complications and outcomes of PSGN in an urban Australian population. METHODS: A 16-year retrospective review of case notes and laboratory data was conducted at a tertiary Sydney paediatric hospital. RESULTS: Thirty-seven children were treated for PSGN with a mean age of 8.1 years (range 2.6-14.1 years). Twenty-eight subjects (75.7%) had a history of a recent upper respiratory tract or skin infection. Hypertension and/or oedema was present in 29 subjects (78.4%). Streptococcal pharyngitis was identified as the likely source in 17 subjects (45.9%). Skin infections occurred less frequently. Antibodies against streptolysin O, streptokinase or deoxyribonuclease B were elevated when a single titre was measured in 35 subjects (94.6%). Thirty subjects (81.1%) developed renal impairment (median peak creatinine, 95 micromol/L, range 39-880 micromol/L). No correlation was demonstrated between peak creatinine, age, ethnicity, streptococcal titres and serum complement levels. The mean length of admission was 8.2 days. Seven subjects (18.9%) had a complicated course with three subjects requiring dialysis. Only one subject has ongoing renal dysfunction. CONCLUSION: Significant differences are seen in a low-incidence urban Australian population with PSGN when compared with endemic or epidemic disease in high-risk populations. The higher rates of complications that were seen compared with previously studied populations need further clarification. Publication Type Journal Article. <9> Unique Identifier 17444820 Status MEDLINE Authors Steer AC. Danchin MH. Carapetis JR. Authors Full Name Steer, Andrew C. Danchin, Margaret H. Institution Carapetis, Jonathan R. Centre for International Child Health, University of Melbourne, Department of Paediatrics, Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia. Title Group A streptococcal infections in children. Source Journal of Paediatrics & Child Health. 43(4):203-13, 2007 Apr. Abstract The group A streptococcus causes the widest range of disease in humans of all bacterial pathogens. Group A streptococcal diseases are more common in children than adults with diseases ranging from pharyngitis and impetigo to invasive infections and the post-streptococcal sequelae-acute rheumatic fever and acute post-streptococcal glomerulonephritis. The global burden of severe group A streptococcal disease is concentrated largely in developing countries and Indigenous populations such as Aboriginal Australians. Control of group A streptococcal disease is poor in these settings and the need for a vaccine has been argued. With an ever-increasing understanding of the group A streptococcus at a molecular level, new and sophisticated vaccines are currently in human trials and the next decade holds exciting prospects for curbing group A streptococcal diseases. Publication Type Journal Article. <10> Unique Identifier 19364571 Status MEDLINE Authors Zaffanello M. Fedrizzi M. Authors Full Name Zaffanello, Marco. Fedrizzi, Michela. Title Delayed diagnosis of post-streptococcal glomerulonephritis. Comments Comment on: J Pediatr. 2008 Oct;153(4):560-4; PMID: 18534213] Source Journal of Pediatrics. 154(5):777; author reply 777, 2009 May. Publication Type Comment. Letter. <11> Unique Identifier 17044468 Status MEDLINE Authors Srisawat N. Aroonpoonsub L. Lewsuwan S. Kanjanabuch T. Avihingsanon Y. Praditpornsilpa K. Tungsanga K. Chusil S. Eiam-Ong S. Authors Full Name Srisawat, Nattachai. Aroonpoonsub, Laor. Lewsuwan, Songkiat. Kanjanabuch, Talengsak. Avihingsanon, Yingyos. Praditpornsilpa, Kearkiat. Tungsanga, Kraing. Chusil, Sawaluk. Eiam-Ong, Somchai. Institution Department of Medicine, Faculty of Medicine, Chulalongkorn University Hospital, Bangkok, Thailand. Title The clinicopathology and outcome of post-infectious glomerulonephritis: experience in 36 adults. Source Journal of the Medical Association of Thailand. 89 Suppl 2:S157-62, 2006 Aug. Abstract Post-infectious glomerulonephritis is one of the most common causes of acute glomerulonephritis. A retrospective study of post-infectious glomerulonephritis at King Chulalongkorn Memorial Hospital, Thailand was performed from January 1999 to December 2005. Among thirty six patients, eight cases were post-streptococcal glomerulonephritis and twenty eight cases were post non-streptococcal Glomerulo Nephritis (GN). Most cases present with edema, hypertension, gross hematuria and nephrotic-range proteinuria. C3 and CH50 commonly were low. Post-streptococcal glomerulonephritis had more aggressive pathology compared to the others. However the long term outcome was excellent. In the present study the authors found ESRD in only 14.3% (4 out of 28 cases) that reflects the excellent prognosis of post-infectious glomerulonephritis. Of interest, all of the ESRD patients were caused by post non-Streptococcal GN. Even though, no statistic was achieved; it might reflect the aggressiveness of non-Streptococcal pathogen. Publication Type Journal Article. <12> Unique Identifier 17205964 Status MEDLINE Authors Oda T. Yoshizawa N. Yamakami K. Ishida A. Hotta O. Suzuki S. Miura S. Authors Full Name Oda, Takashi. Yoshizawa, Nobuyuki. Yamakami, Kazuo. Ishida, Aki. Hotta, Osamu. Suzuki, Shigenobu. Miura, Soichiro. Institution Department of Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa-shi, Saitama 359-8513, Japan. takashio@ndmc.ac.jp Title Significance of glomerular cell apoptosis in the resolution of acute post-streptococcal glomerulonephritis. Source Nephrology Dialysis Transplantation. 22(3):740-8, 2007 Mar. Abstract BACKGROUND: Glomerular hypercellularity due to resident glomerular cell proliferation and leucocyte infiltration has been described in acute post-streptococcal glomerulonephritis (APSGN). APSGN usually resolves without progression. However, the mechanism of resolution remains to be determined. METHODS: Renal biopsy tissues from 15 patients with APSGN (obtained 1-31 days after disease onset) and five control patients with minor glomerular abnormality were evaluated with respect to glomerular resolution. Apoptotic cells were assessed by terminal deoxynucleotidyl transferase-mediated dUTP nick end-labelling (TUNEL) as well as by immunostaining of single-stranded DNA (ssDNA). RESULTS: The number of glomerular cells was high in the early-phase of APSGN and decreased over time. No TUNEL+ glomerular cells were found in control subjects, whereas prominent glomerular TUNEL+ cells were observed in APSGN patients, particularly in the early phase of the disease. The number of glomerular TUNEL+ cells decreased exponentially but was still prominent in renal tissue biopsied at 31 days after disease onset. Double staining for ssDNA and glomerular cell markers showed that glomerular apoptotic cells were predominantly mesangium and endothelial cells, with some neutrophils and macrophages. CONCLUSIONS: These results suggest that apoptosis exists in the glomerulus in patients with APSGN from the early to the late stages of the disease and contributes to the resolution of glomerular hypercellularity. Publication Type Journal Article. <13> Unique Identifier 17539966 Status MEDLINE Authors Hisano S. Matsushita M. Fujita T. Takeshita M. Iwasaki H. Authors Full Name Hisano, Satoshi. Matsushita, Misao. Fujita, Teizo. Takeshita, Morishige. Iwasaki, Hiroshi. Institution Department of Pathology, Faculty of Medicine, Fukuoka University, Nanakuma, Fukuoka, Japan. hisanos1@cis.fukuoka-u.ac.jp Title Activation of the lectin complement pathway in post-streptococcal acute glomerulonephritis. Source Pathology International. 57(6):351-7, 2007 Jun. Abstract The aim of the present study was to elucidate the correlation between complement pathways and clinicopathological findings in poststreptococcal acute glomerulonephritis (PSAGN). Immunohistological staining was performed on renal specimens obtained from 18 patients with PSAGN and 20 controls, using antibodies against IgG, IgA, IgM, C1q, C3c, C4, fibrinogen, factor B, C4-binding protein (C4-bp), C5b-9, CD59, mannose-binding lectin (MBL) and MBL-associated serine protease-1 (MASP1). Controls showed no deposition of any antibody. In seven patients, glomerular deposits of C3c, C4, factor B, C4-bp, C5b-9, CD59, MBL and MASP-1 were found. In the remaining 11 patients, glomerular deposits of neither C4 nor MBL/MASP-1 were found, and glomerular deposits of C3c, factor B, C5b-9 and CD59 were evident. C4-bp was detected in seven of these 11 patients. Glomerular deposits of fibrinogen were detected in five of seven patients with MBL/MASP-1 deposits and in only two of 11 patients without MBL/MASP-1 deposits. Hematuria was prolonged in three of seven patients with MBL/MASP-1 deposits through follow up, whereas urinalysis was normal in all patients without MBL/MASP-1 deposits. However, the histological indicators were not different between the two groups. To the authors' knowledge this is the first report to show that complement activation through both the alternative and lectin pathways is evident in some patients with PSAGN. Complement activation is promoted in situ in the glomerulus. Publication Type Journal Article. <14> Unique Identifier 17973321 Status MEDLINE Authors Pashankar FD. Ment LR. Pearson HA. Authors Full Name Pashankar, Farzana D. Ment, Laura R. Pearson, Howard A. Institution Department of Pediatrics and Neurology, Yale University School of Medicine, New Haven, Connecticut, USA. Farzana.Pashankar@yale.edu Title Sickle cell disease complicated by post-streptococcal glomerulonephritis, cerebral hemorrhage and reversible posterior leucoencephalopathy syndrome. Source Pediatric Blood & Cancer. 50(4):864-6, 2008 Apr. Abstract A patient with homozygous hemoglobin SS disease presented with an intracerebral hemorrhage complicating reversible posterior leucoencephalopathy syndrome (RPLS), secondary to hypertension associated with acute post-streptococcal glomerulonephritis (APSGN). Distinguishing potentially reversible causes of central nervous system events from primary cerebral infarction or hemorrhage in patients with sickle cell disease is important because the management and prognosis of these complications is very different. Similarly, because of the difference in prognosis between APSGN and other forms of sickle cell nephropathy, it is also important to differentiate these conditions. (c) 2008 Wiley-Liss, Inc. Publication Type Case Reports. Journal Article. <15> Unique Identifier 16395114 Status MEDLINE Authors Fux CA. Bianchetti MG. Jakob SM. Remonda L. Authors Full Name Fux, Christoph A. Bianchetti, Mario G. Jakob, Stephan M. Remonda, Luca. Institution Institute of Infectious Diseases, University of Bern, Bern, Switzerland. christoph.fux@insel.ch Title Reversible encephalopathy complicating post-streptococcal glomerulonephritis. Source Pediatric Infectious Disease Journal. 25(1):85-7, 2006 Jan. Abstract We describe a 15-year-old boy with acute transient encephalopathy complicating poststreptococcal glomerulonephritis. Based on advanced magnetic resonance imaging, cerebral alterations were related to cerebrovascular autoregulatory dysfunction (ie, a vasogenic edema) and vasculitis was excluded. These insights into the pathophysiology improve patient management and argue against the therapeutic immunosuppression postulated by some authors. Publication Type Case Reports. Journal Article. <16> Unique Identifier 19876655 Status MEDLINE Authors Becquet O. Pasche J. Gatti H. Chenel C. Abely M. Morville P. Pietrement C. Authors Full Name Becquet, Odile. Pasche, Jerome. Gatti, Helene. Chenel, Claude. Abely, Michel. Morville, Patrice. Pietrement, Christine. Institution Department of Pediatrics, American Memorial Hospital, 51 rue Cognacq Jay, 51100 Reims, France. Title Acute post-streptococcal glomerulonephritis in children of French Polynesia: a 3-year retrospective study. Source Pediatric Nephrology. 25(2):275-80, 2010 Feb. Abstract The aim of this study was to define the current demographic, clinical and prognostic characteristics of acute post-streptococcal glomerulonephritis (APSGN) in French Polynesia and to compare these features with those of other populations. Fifty children, all of whom were <15 years old and had been admitted to the Territorial Hospital of Papeete for APSGN between January 2005 and December 2007, were retrospectively enrolled in the study. Diagnostic criteria were microscopic or macroscopic haematuria, decreased C3 fraction of the complement and evidence of recent streptococcal infection. The annual incidence was 18 cases per 100,000 children <15 years of age in 2007. Most of the children (98%) enrolled in the study were of Polynesian ethnic origin, 27 were male (54%), and the average age at presentation was 6.7 years. Signs of previous respiratory infections were clearly evident in 40% of the children. Most of the patients presented during the rainy season, correlating with the relatively high incidence of skin infections at this time. The majority of patients had proteinuria (98%), with 25% having proteinuria in the nephrotic range (proteinuria/urinary creatinine >3 g/g). The presentation was severe in 22% of the children (congestive cardiac failure, severe hypertension and/or encephalopathy), and renal failure was an initial presenting symptom in 43.7%. The C3 fraction was lower in severe presentations, but the type of haematuria, level of proteinuria and inflammatory syndrome were not correlated with immediate severe forms or with initial renal failure. Haematuria resolved in a mean of 7.7 months and proteinuria in a mean of 3.9 months. None of the children had hypocomplementemia for more than 8 weeks. Acute poststreptococcal glomerulonephritis is endemic among French Polynesians, and they can be considered to be a high-risk population. Despite a high incidence of skin infections, however, the predominance of respiratory infections potentially indicates that French Polynesia is on the way to become a low-incidence area. Systematic detection and treatment of group A Streptococcus should be intensified. Publication Type Journal Article. <17> Unique Identifier 18373105 Status MEDLINE Authors Ilyas M. Tolaymat A. Authors Full Name Ilyas, Mohammad. Tolaymat, Asad. Institution Pediatric Nephrology, University of Florida/Jacksonville, Jacksonville, FL, USA. mohammad.ilyas@jax.ufl.edu Title Changing epidemiology of acute post-streptococcal glomerulonephritis in Northeast Florida: a comparative study. Source Pediatric Nephrology. 23(7):1101-6, 2008 Jul. Abstract The objective of this study was to review the epidemiological patterns of acute post-streptococcal glomerulonephritis (APSGN) in a pediatric population. We compared incidence, pathogenesis, clinical presentation and outcomes in two APSGN pediatric patient cohorts in northeastern Florida. Retrospective medical records were reviewed of children who were admitted to our institution with a diagnosis of APSGN. Patients admitted between 1999 and 2006 (recent cohort) were compared with a previously reported cohort of patients admitted between 1957 and 1973 (earlier cohort). The recent cohort comprised 45 children with APSGN of whom 87% were male and 13% were female; the median age was 7 years, and there was an average incidence of 6.4 patients per year. The earlier cohort comprised 153 children with APSGN of whom 62% were male and 38% were female; the median age 4.25 years, and there was an average incidence of 10.9 patients per year. The recent cohort was predominantly WhiteAmerican (62%) and the earlier cohort predominately African American (87%). In the recent cohort, 64% of patients had antecedent pharyngitis, and in the earlier cohort, 66% of patients had antecedent pyoderma. In the recent cohort, 11% of APSGN cases occurred between August to October, and in the earlier cohort, 50% occurred during these months. In the recent cohort, symptoms of APSGN at presentation were milder and all cases recovered, but in the earlier cohort two deaths (1.3% mortality) were reported. In conclusion, there has been a decline in the incidence and severity of APSGN at our institute in recent decades. Pharyngitis has replaced impetigo as the predominant cause of APSGN. The etiological agent for impetigo has changed over the last decade, which has impacted the incidence, racial distribution, seasonal variation and severity of APSGN. Publication Type Comparative Study. Journal Article. <18> Unique Identifier 17294226 Status MEDLINE Authors Daskas N. Farmer K. Coward R. Erlewyn-Lajeunesse M. Authors Full Name Daskas, Nikolaos. Farmer, Katie. Coward, Richard. ErlewynLajeunesse, Michel. Institution Bristol Royal Hospital for Children, Bristol, UK. Title Meningococcal disease associated with an acute post-streptococcal complement deficiency. Source Pediatric Nephrology. 22(5):747-9, 2007 May. Abstract Chronic deficiencies in the complement pathway proteins are associated with an increased risk of meningococcal disease. Such deficiencies are caused by primary congenital immunodeficiency of a complement protein, properdin or mannose binding lectin, or are secondary to consumption of complement by systemic lupus erythematosus (SLE) or membranoproliferative glomerulonephritis (MPGN). Whatever the cause, the complement deficiency is always chronic. Here we report a case of meningococcal disease (MCD) in a child with a transient complement deficiency (CD), caused by poststreptococcal glomerulonephritis (PSGN). Publication Type Case Reports. Journal Article. <19> Unique Identifier 17109135 Status MEDLINE Authors Thorley AM. Campbell D. Moghal NE. Hudson S. Authors Full Name Thorley, Anna M. Campbell, David. Moghal, Nadeem E. Hudson, Sue. Institution Department of Paediatrics, Queen Elizabeth Hospital, Sheriff Hill, NE9 6SX, Gateshead, Tyne and Wear, UK. annamcocker@hotmail.com Title Post streptococcal acute glomerulonephritis secondary to sporadic Streptococcus equi infection. Source Pediatric Nephrology. 22(4):597-9, 2007 Apr. Abstract Streptococcus equi subspecies zooepidemicus infection is rare in humans, but a well-known cause of pyogenic disease in cows and horses. S. zooepidemicus uncommonly causes post-strep glomerulonephritis (PSGN) in humans via epidemic outbreaks. We present a sporadic case of post S. zooepidemicus glomerulonephritis in a child most probably contracted from a horse. The 14-year-old girl presented with the typical signs of PSGN, with S. equi zooepidemicus isolated from a blood culture, together with a low C3 and raised anti-DNAse B. This is the first known report of a sporadic case of PSGN in a child caused by this organism. Publication Type Case Reports. Journal Article. <20> Unique Identifier 17106689 Status MEDLINE Authors Bakr A. Mahmoud LA. Al-Chenawi F. Salah A. Authors Full Name Bakr, Ashraf. Mahmoud, Lotfi Abdel-Naby. Al-Chenawi, Farha. Salah, Amany. Institution Pediatric Nephrology, Mansoura University Children's Hospital, Goumhoria Street, Mansoura, 35516, Egypt. ashbakr@mans.edu.eg Title HLA-DRB1* alleles in Egyptian children with post-streptococcal acute glomerulonephritis. Source Pediatric Nephrology. 22(3):376-9, 2007 Mar. Abstract To investigate the association between HLA-DRB1* alleles and poststreptococcal acute glomerulonephritis (PSAGN) in Egyptian children, 32 unrelated patients with PSAGN and 380 healthy individuals from the same locality were typed for DRB1* alleles using the polymerase chain-reverse hybridization technique. Patients with PSAGN had significantly increased frequency of both DRB1* 03011 (46.9 vs. 19.2% in controls, P=0.00025) and DRB1* 1105 (31.1 vs. 15.6% in controls, P=0.0097) alleles. However, after correction of P values, only the difference for DRB1* 03011 allele remained significant (Pc=0.025). Their relative risks were significantly high (3.71, confidence interval [CI]=1.8-7.8, and 3.57, CI=1.4-8.9 respectively). No significant differences in the frequency of the two alleles were observed among patients with different grades of hypertension or proteinuria. In conclusion, DRB1* 03011, and possibly 1105, alleles confer susceptibility to PSAGN. However, the severity of the disease is not determined by these two alleles. Publication Type Journal Article. <21> Unique Identifier 17043882 Status MEDLINE Authors Bingler MA. Ellis D. Moritz ML. Authors Full Name Bingler, Michael A. Ellis, Demetrius. Moritz, Michael L. Institution Department of Pediatrics, Children's Hospital of Pittsburgh, The University of Pittsburgh School of Medicine, Pittsburgh, PA 15213-2538, USA. Title Acute post-streptococcal glomerulonephritis in a 14-month-old boy: why is this uncommon?. Source Pediatric Nephrology. 22(3):448-50, 2007 Mar. Abstract Acute post-streptococcal glomerulonephritis (APSGN) is rare in children under 2 years of age. This is related in part to the disease patterns of group A streptococcus (GAS) and in part to impaired immunogenicity in infants. We report the case of a 14-month-old child with APSGN following GAS pharyngitis. This case illustrates that APSGN needs to be considered in the evaluation of both gross and microscopic hematuria in this age group. We review the literature of both GAS and APSGN and discuss the pathogenesis and epidemiologic reasons for this association. Publication Type Case Reports. Journal Article. <22> Unique Identifier 16934708 Status MEDLINE Authors Martin JM. Green M. Authors Full Name Martin, Judith M. Green, Michael. Institution Department of Pediatrics, University of Pittsburgh School of Medicine, Division of Infectious Diseases, Children's Hospital of Pittsburgh, Pittsburgh, PA 15213, USA. Judy.martin@chp.edu Title Group A streptococcus. Source Seminars in Pediatric Infectious Diseases. 17(3):140-8, 2006 Jul. Abstract Group A streptococci (GAS) are gram positive cocci that can be divided into more than 100 M-serotypes or emm types based on their M proteins. Their virulence is related directly to the M protein on the cell surface that inhibits phagocytosis. Although it is more commonly thought of in the context of causing clinical illness, Streptococcus pyogenes can colonize the pharynx and skin. Infections due to GAS include pharyngitis, impetigo, ecthyma, erysipelas, and cellulitis. These infections, as well as the manifestations of invasive disease including streptococcal toxic shock syndrome and necrotizing fasciitis, will be reviewed in this article. Also included will be the nonsuppurative complications of GAS infections, acute rheumatic fever and post streptococcal glomerular nephritis. GAS is an important cause of infections in children in both the ambulatory and hospital settings. Current efforts aimed at the development of a vaccine are warranted but remain in preliminary stages at this time. Publication Type Journal Article.