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Fanconi syndrome

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https://www.readbyqxmd.com/read/27904113/fanconi-syndrome-associated-with-hyponatremia-in-two-patients-with-legionella-pneumonia
#1
Akihiro Ryuge, Yasuhiko Ito, Taishi Yamakawa, Hitoshi Tanaka, Hirotoshi Yasui, Shuko Mashimo, Kenshi Watanabe, Rie Nomura, Nobukazu Suganuma, Shoichi Maruyama
Legionella pneumophila is a cause of community-acquired pneumonia that is reported to induce electrolyte disorders, including hyponatremia, hypokalemia, and hypophosphatemia. We herein report two Japanese men with Legionella pneumonia and hyponatremia and hypophosphatemia. These findings were associated with an elevation of urinary low-molecular-weight tubular protein, including urinary β2-microglobulin, N-acetyl-β-D-glucosaminidase, the fractional excretion of phosphate and uric acid, and the presence of glycosuria and panaminoaciduria, suggesting that their electrolyte disorders had been caused by Fanconi syndrome...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27889724/phenotype-of-dent-disease-in-a-cohort-of-indian-children
#2
Swati Bhardwaj, Ranjeet Thergaonkar, Aditi Sinha, Pankaj Hari, Cheong Hi, Arvind Bagga
OBJECTIVE: To describe the clinical and genotypic features of Dent disease in children diagnosed at our center over a period of 10 years. DESIGN: Case series. SETTING: Pediatric Nephrology Clinic at a referral center in Northern India. METHODS: The medical records of patients with Dent disease diagnosed and followed up at this hospital from June 2005 to April 2015 were reviewed. The diagnosis of Dent disease was based on presence of all three of the following: (i) low molecular weight proteinuria, (ii) hypercalciuria and (iii) one of the following: nephrolithiasis, hematuria, hypophosphatemia or renal insufficiency, with or without mutation in CLCN5 or OCRL1 genes...
November 15, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27883081/v-d-j-recombination-process-and-the-pre-b-to-immature-b-cells-transition-are-altered-in-fanca-mice
#3
Thuy Vy Nguyen, Patrycja Pawlikowska, Virginie Firlej, Filippo Rosselli, Saïd Aoufouchi
B-lymphocytes in the bone marrow (BM) must generate a functional B-cell receptor and overcome the negative selection induced by reactivity with autoantigens. Two rounds of DNA recombination are required for the production of functional immunoglobulin heavy (Ig-HCs) and light (LCs) chains necessary for the continuation of B-lymphocyte development in the BM. Both rounds depend on the joint action of recombination activating gene-1 (RAG-1) and RAG-2 endonucleases with the DNA non-homologous end-joining pathway...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27867521/exome-first-approach-identified-a-novel-gloss-deletion-associated-with-lowe-syndrome
#4
Miki Watanabe, Ryuji Nakagawa, Tomohiro Kohmoto, Takuya Naruto, Ken-Ichi Suga, Aya Goji, Hideaki Horikawa, Kiyoshi Masuda, Shoji Kagami, Issei Imoto
Lowe syndrome (LS) is an X-linked disorder affecting the eyes, nervous system and kidneys, typically caused by missense or nonsense/frameshift OCRL mutations. We report a 6-month-old male clinically suspected to have LS, but without the Fanconi-type renal dysfunction. Using a targeted-exome sequencing-first approach, LS was diagnosed by the identification of a deletion involving 1.7 Mb at Xq25-q26.1, encompassing the entire OCRL gene and neighboring loci.
2016: Human Genome Variation
https://www.readbyqxmd.com/read/27866471/distal-renal-tubular-acidosis-without-renal-impairment-after-use-of-tenofovir-a-case-report
#5
Kentaro Iwata, Manabu Nagata, Shuhei Watanabe, Shinichi Nishi
BACKGROUND: Tenofovir, one of antiretroviral medication to treat human immunodeficiency virus (HIV) infection, is known to cause proximal renal tubular acidosis such as Fanconi syndrome, but cases of distal renal tubular acidosis had never been reported. CASE PRESENTATION: A 20-year-old man with HIV infection developed nausea and vomiting without diarrhea after starting antiretroviral therapy. Arterial blood gas revealed non-anion-gap metabolic acidosis and urine test showed positive urine anion gap...
November 21, 2016: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27843372/wissler-fanconi-syndrome-and-related-diagnoses-a-case-report
#6
Mustafa Q Albustani, Robert F Howard
INTRODUCTION: Wissler-Fanconi syndrome is a rare rheumatic syndrome that was first described during the 1940s in Europe. Since then, many papers have been written that cover all aspects of this syndrome, most of which are in French and German language, with only a very few in English (none of them recent). We report here a case that fulfils the criteria for Wissler-Fanconi syndrome. Under the more general descriptive umbrella of Wissler-Fanconi syndrome, our patient also fulfils the Modified Jones criteria, and the 2010 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) classification criteria for rheumatoid arthritis, and was interpreted by other internists and another rheumatologist as fulfilling the Yamaguchi criteria for adult onset Still's disease...
2016: Open Access Rheumatol
https://www.readbyqxmd.com/read/27831662/loss-of-the-tgf-%C3%AE-effector-%C3%AE-2sp-promotes-genomic-instability
#7
Jian Chen, Vivek Shukla, Patrizia Farci, Jaclyn Andricovich, Wilma Jogunoori, Lawrence N Kwong, Lior H Katz, Kirti Shetty, Asif Rashid, Xiaoping Su, Jon White, Lei Li, Alan Yaoqi Wang, Boris Blechacz, Gottumukkala S Raju, Marta Davila, Bao-Ngoc Nguyen, John R Stroehlein, Junjie Chen, Sang Soo Kim, Heather Levin, Keigo Machida, Hidekazu Tsukamoto, Peter Michaely, Alexandros Tzatsos, Lopa Mishra
Exposure to genotoxins such as ethanol-derived acetaldehyde leads to DNA damage and liver injury, and promotes the development of cancer. We report here a major role for the TGF-β/Smad3 adaptor β2-Spectrin (β2SP, gene Sptbn1) in maintaining genomic stability following alcohol-induced DNA damage. β2SP supports DNA repair through β2SP-dependent activation of Fancd2, a core component of the Fanconi anemia complex. Loss of β2SP leads to decreased Fancd2 levels and sensitizes β2SP mutants to DNA damage by ethanol treatment, leading to phenotypes that closely resemble those observed in animals lacking both Aldh2 and Fancd2, and resemble human fetal alcohol syndrome...
November 5, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27799484/renal-fanconi-syndrome-and-hypophosphatemic-rickets-in-the-absence-of-xenotropic-and-polytropic-retroviral-receptor-in-the-nephron
#8
Camille Ansermet, Matthias B Moor, Gabriel Centeno, Muriel Auberson, Dorothy Zhang Hu, Roland Baron, Svetlana Nikolaeva, Barbara Haenzi, Natalya Katanaeva, Ivan Gautschi, Vladimir Katanaev, Samuel Rotman, Robert Koesters, Laurent Schild, Sylvain Pradervand, Olivier Bonny, Dmitri Firsov
Tight control of extracellular and intracellular inorganic phosphate (Pi) levels is critical to most biochemical and physiologic processes. Urinary Pi is freely filtered at the kidney glomerulus and is reabsorbed in the renal tubule by the action of the apical sodium-dependent phosphate transporters, NaPi-IIa/NaPi-IIc/Pit2. However, the molecular identity of the protein(s) participating in the basolateral Pi efflux remains unknown. Evidence has suggested that xenotropic and polytropic retroviral receptor 1 (XPR1) might be involved in this process...
October 31, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27790753/renal-dysfunction-in-patients-taking-fumaric-acid-esters-a-retrospective-cross-sectional-study
#9
S Menzies, N Ismail, A Abdalla, P Collins, B Kirby, J Holian, A Lally
BACKGROUND: Fumaric acid esters (FAE) have been used for over 30 years in the management of psoriasis. There have been a number of case reports linking the use of FAE with nephrotoxicity, including acute renal injury and Fanconi syndrome. However, one large multicentre retrospective trial showed no evidence of renal dysfunction with FAE. OBJECTIVES/AIMS: The aim of this study was to determine the number of patients in our institution being treated with FAE who developed significant proteinuria or renal dysfunction...
October 28, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27771652/fanconi-bickel-syndrome-with-hypercalciuria-due-to-glut-2-mutation
#10
Ruchi Shah, Sudha Rao, Ruchi Parikh, Tahir Sophia, Hussain Khalid
BACKGROUND: Fanconi Bickel Syndrome is a rare, autosomal recessive, disorder of carbohydrate metabolism. Presence of hypercalciuria is rare. CASE CHARACTERISTICS: 4.5-years-old boy presented with growth failure, hepatomegaly, rickets, fasting hypoglycemia with postprandial hyperglycemia, fanconi syndrome and hypercalciuria. OUTCOME: A rare mutation in GLUT-2 gene suggestive of Fanconi Bickel Syndrome. MESSAGE: Fanconi Bickel Syndrome may present with hypercalciuria with proximal renal tubulopathy along with fasting hypoglycemia and postprandial hyperglycemia...
September 8, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27760710/recent-discoveries-in-the-molecular-pathogenesis-of-the-inherited-bone-marrow-failure-syndrome-fanconi-anemia
#11
REVIEW
Nicholas E Mamrak, Akiko Shimamura, Niall G Howlett
Fanconi anemia (FA) is a rare autosomal and X-linked genetic disease characterized by congenital abnormalities, progressive bone marrow failure (BMF), and increased cancer risk during early adulthood. The median lifespan for FA patients is approximately 33years. The proteins encoded by the FA genes function together in the FA-BRCA pathway to repair DNA damage and to maintain genome stability. Within the past two years, five new FA genes have been identified-RAD51/FANCR, BRCA1/FANCS, UBE2T/FANCT, XRCC2/FANCU, and REV7/FANCV-bringing the total number of disease-causing genes to 21...
October 13, 2016: Blood Reviews
https://www.readbyqxmd.com/read/27746441/bone-histology-of-two-cases-with-osteomalacia-related-to-low-dose-adefovir
#12
Rikako Hiramatsu, Yoshifumi Ubara, Naoki Sawa, Eiko Hasegawa, Masahiro Kawada, Aya Imafuku, Keiichi Sumida, Junichi Hoshino, Kenmei Takaichi
We performed a bone histomorphometric analysis in two patients demonstrating Fanconi syndrome with hypophosphatemia, adefovir-related bone disease and chronic hepatitis B infection. Both patients had osteomalacia, but showed two different histological patterns. The osteoid volume of the patient without risedronate increased with [(osteoid volume/ bone volume)×100=18.6%]. However, the osteoid volume of the patient receiving risedronate without vitamin D analogue showed a greater increase of 53.8%. In both patients bone pain and hypophosphatemia subsided soon after the discontinuation of adefovir and the administration of phosphate derivative...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27728607/fanconi-syndrome-in-paraquat-poisoning
#13
Narendran Krishnamoorthi, Christopher C Pais, Muralidhara Yadiyal B, Pradeep Kumar Shenoy, Riffat Abdulaziz
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27707682/detection-of-candidatus-neoehrlichia-mikurensis-and-other-anaplasmataceae-and-rickettsiaceae-in-canidae-in-switzerland-and-mediterranean-countries
#14
R Hofmann-Lehmann, N Wagmann, M L Meli, B Riond, M Novacco, D Joekel, F Gentilini, F Marsilio, M G Pennisi, A Lloret, T Carrapiço, F S Boretti
'Candidatus Neoehrlichia mikurensis' is an emerging tick-borne zoonotic agent that primarily affects immunocompromised human patients. Dogs and foxes are frequently exposed to ticks, and both species are in close proximity to humans. This is the first study to systematically investigate the occurrence of 'Candidatus Neoehrlichia mikurensis' in Canidae in Europa. We analyzed 1'739 blood samples from dogs in Switzerland, Italy, Spain and Portugal and 162 blood samples from free-ranging red foxes (Vulpes vulpes) in Switzerland...
October 2016: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/27683045/melas-syndrome-and-kidney-disease-without-fanconi-syndrome-or-proteinuria-a-case-report
#15
Michael Rudnicki, Johannes A Mayr, Johannes Zschocke, Herwig Antretter, Heinz Regele, René G Feichtinger, Martin Windpessl, Gert Mayer, Gerhard Pölzl
Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS syndrome) represents one of the most frequent mitochondrial disorders. The majority of MELAS cases are caused by m.3243A>G mutation in the mitochondrial MT-TL1 gene, which encodes the mitochondrial tRNA(Leu(UUR)). Kidney involvement usually manifests as Fanconi syndrome or focal segmental glomerulosclerosis. We describe a patient with MELAS mutation, cardiomyopathy, and chronic kidney disease without Fanconi syndrome, proteinuria, or hematuria...
September 24, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27679714/serum-fgf23-levels-may-not-be-associated-with-serum-phosphate-and-1-25-dihydroxyvitamin-d-levels-in-patients-with-fanconi-syndrome-induced-hypophosphatemia
#16
Shunsuke Goto, Hideki Fujii, Keiji Kono, Kentaro Watanabe, Kentaro Nakai, Shinichi Nishi
Fibroblast growth factor 23 (FGF23) is regulated by sustained phosphate supplementation and restriction. However, few studies have investigated FGF23 levels in patients with Fanconi syndrome. Therefore, we evaluated intact and C-terminal FGF23 and FGF23-associated parameters in four patients with Fanconi syndrome. Serum intact and C-terminal FGF23 levels were extremely low. Although serum phosphate and 1,25-dihydroxyvitamin D levels improved to or above the normal range within 1 year of treatment with oral phosphate and calcitriol, serum FGF23 levels remained low...
October 2016: Clinical Kidney Journal
https://www.readbyqxmd.com/read/27650066/aldehyde-dehydrogenase-2-in-aplastic-anemia-fanconi-anemia-and-hematopoietic-stem-cells
#17
REVIEW
Lauren D Van Wassenhove, Daria Mochly-Rosen, Kenneth I Weinberg
Maintenance of the hematopoietic stem cell (HSC) compartment depends on the ability to metabolize exogenously and endogenously generated toxins, and to repair cellular damage caused by such toxins. Reactive aldehydes have been demonstrated to cause specific genotoxic injury, namely DNA interstrand cross-links. Aldehyde dehydrogenase 2 (ALDH2) is a member of a 19 isoenzyme ALDH family with different substrate specificities, subcellular localization, and patterns of expression. ALDH2 is localized in mitochondria and is essential for the metabolism of acetaldehyde, thereby placing it directly downstream of ethanol metabolism...
September 2016: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/27625703/first-molecular-cytogenetic-characterization-of-fanconi-anemia-fragile-sites-in-primary-lymphocytes-of-fa-d2-patients-in-different-stages-of-the-disease
#18
Jelena Filipović, Gordana Joksić, Dragana Vujić, Ivana Joksić, Kristin Mrasek, Anja Weise, Thomas Liehr
BACKGROUND: Fanconi anemia (FA) is a chromosomal instability syndrome characterized by increased frequency of chromosomal breakages, chromosomal radial figures and accelerated telomere shortening. In this work we performed detailed molecular-cytogenetic characterization of breakpoints in primary lymphocytes of FA-D2 patients in different stages of the disease using fluorescent in situ hybridization. RESULTS: We found that chromosomal breakpoints co-localize on the molecular level with common fragile sites, whereas their distribution pattern depends on the severity of the disease...
2016: Molecular Cytogenetics
https://www.readbyqxmd.com/read/27623519/-tenofovir-associated-fanconi-s-syndrome-and-rickets-in-a-hiv-infected-girl
#19
Marcela Zúñiga, Armando Galindo, María Isabel Galaz, Maritza Vivanco, Patricio Romero, Paulina Balboa, Claudia Torrejón
INTRODUCTION: Tenofovir (TDF) is an inhibitor of reverse transcriptase nucleotide analogue, although it has good tolerability and high anti-retroviral activity, its effect on the kidney has been a concern. OBJECTIVE: To describe a girl infected with HIV who presented Fanconi syndrome during antiretroviral therapy with TDF. CLINICAL CASE: We describe a HIV-1-infected girl, who after 18 months treatment with TDF presented loss of strength and pain of the lower extremities with functional impairment...
September 9, 2016: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/27617158/fanconi-bickel-syndrome-two-pakistani-patients-presenting-with-hypophosphatemic-rickets
#20
Bushra Afroze, Margaret Chen
Fanconi-Bickel syndrome is a rare inherited disorder characterized by hepatorenal glycogen accumulation, renal tubular dysfunction, growth failure, and impaired utilization of glucose and galactose. We report the first two children with Fanconi-Bickel syndrome from Pakistan who presented with classical features of Fanconi-Bickel Syndrome. Both patients were found to be homozygous for a single nucleotide deletion in the SLC2A2 gene defined as c.339delC. This mutation was previously described in an Arab patient who was initially presented as permanent neonatal diabetes mellitus before developing classical features of Fanconi-Bickel syndrome...
September 2016: Journal of Pediatric Genetics
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