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https://www.readbyqxmd.com/read/28648202/a-review-on-autosomal-dominant-tubulointerstitial-kidney-disease
#1
Nadia Ayasreh Fierro, Rosa Miquel Rodríguez, Ana Matamala Gastón, Elisabet Ars Criach, Roser Torra Balcells
In recent years there has been a reclassification of hereditary tubulointerstitial renal diseases. The old concepts of nephronoptisis or medullary cystic disease have been reordered based on the discovery of new genes. The 2015 KDIGO guidelines proposed a unification of terminology, diagnostic criteria and monitoring. So far 4genes causing autosomal dominant tubulointerstitial kidney disease have been described: MUC1, UMOD, HNF1B and REN. Although the mutation in each of them causes distinctive features in how they present, all have in common the progressive tubulointerstitial damage and renal fibrosis...
May 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28622294/hepatocyte-nuclear-factor-1b-is-a-novel-negative-regulator-of-white-adipocyte-differentiation
#2
Xin Wang, Hao Wu, Weihua Yu, Jiangzheng Liu, Jie Peng, Nai Liao, Jieling Zhang, Xiaodi Zhang, Chunxu Hai
Hepatocyte nuclear factor 1b (HNF1b) is a transcription factor belonging to the HNF family. We aimed to investigate the role of HNF1b in white adipocyte differentiation. The expression of HNF1b was reduced in white adipose tissue (WAT) of both diet-induced and genetic obese mice and decreased during the process of 3T3-L1 adipocyte differentiation. Downregulation of HNF1b enhanced 3T3-L1 adipocyte differentiation and upregulation of HNF1b inhibited this process. Upregulation of HNF1b inhibited peroxisome proliferator-activated receptor γ (PPARγ) and its target gene expression, while downregulation of HNF1b increased those genes expression...
June 16, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28618409/identification-of-8-novel-mutations-in-nephrogenesis-related-genes-in-chinese-han-patients-with-unilateral-renal-agenesis
#3
Hangdi Wu, Qian Xu, Jingyuan Xie, Jun Ma, Panpan Qiao, Wen Zhang, Haijin Yu, Weiming Wang, Ying Qian, Qianying Zhang, Yiqing Guo, Yonghua Tang, Xiao-Nong Chen, Zhaohui Wang, Nan Chen
BACKGROUND: Few genetic studies have focused on unilateral renal agenesis (URA), which is a disorder with insidious clinical manifestations and a tendency to result in renal failure. We aimed to detect pathogenic mutations in nephrogenesis-related genes, which were identified by a literature review conducted among a large cohort of Chinese Han patients with URA. METHODS: Totally, 86 unrelated URA patients were included. All URA patients were diagnosed by employing radiological methods...
June 16, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28600106/genetic-analysis-of-mayer-rokitansky-kuster-hauser-syndrome-in-a-large-cohort-of-families
#4
Lacey S Williams, Durkadin Demir Eksi, Yiping Shen, Amy C Lossie, Lynn P Chorich, Megan E Sullivan, John A Phillips, Munire Erman, Hyung-Goo Kim, Ozgul M Alper, Lawrence C Layman
OBJECTIVE: To study the genetic cause of Mayer-Rokitansky-Kuster-Hauser syndrome (MRKH). Although a few candidate genes and genomic domains for have been reported for MRKH, the genetic underpinnings remain largely unknown. Some of the top candidate genes are WNT4, HNF1B, and LHX1. The goals of this study were to: 1) determine the prevalence of WNT4, HNF1B, and LHX1 point mutations, as well as new copy number variants (CNVs) in people with MRKH; and 2) identify and characterize MRKH cohorts...
June 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28597946/comprehensive-screening-for-monogenic-diabetes-in-89-japanese-children-with-insulin-requiring-antibody-negative-type-1-diabetes
#5
Kikumi Ushijima, Maki Fukami, Tadayuki Ayabe, Satoshi Narumi, Misako Okuno, Akie Nakamura, Toshikazu Takahashi, Kenji Ihara, Kazuhiro Ohkubo, Emiko Tachikawa, Shoji Nakayama, Junichi Arai, Nobuyuki Kikuchi, Toru Kikuchi, Tomoyuki Kawamura, Tatsuhiko Urakami, Kenichiro Hata, Kazuhiko Nakabayashi, Yoichi Matsubara, Shin Amemiya, Tsutomu Ogata, Ichiro Yokota, Shigetaka Sugihara
BACKGROUND: Mutations in causative genes for neonatal diabetes or maturity-onset diabetes of the young have been identified in multiple patients with autoantibody-negative type 1 diabetes (T1D). OBJECTIVES: We aimed to clarify the prevalence and phenotypic characteristics of monogenic abnormalities among 89 children with autoantibody-negative insulin-requiring T1D. METHODS: Mutations in 30 genes were screened using next-generation sequencing, and copy-number alterations of 4 major causative genes were examined using multiplex-ligation-dependent probe amplification...
June 9, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28591938/variants-in-mody-genes-associated-with-maternal-lipids-profiles-in-second-trimester-of-pregnancy
#6
Xiaojing Wang, Wei Li, Liangkun Ma, Fan Ping, Juntao Liu, Xueyan Wu, Jiangfeng Mao, Xi Wang, Min Nie
BACKGROUND: Dyslipidemia during pregnancy increase the risk of pregnancy complications. Lipid profiles has strong genetic determinant and numerous susceptibility loci has been identified. However, very few studies focused on the association of lipid-related loci and maternal serum lipids during pregnancy. We, for the first time, investigated the association of common variants in three MODY genes (HNF1A, HNF4A and HNF1B) with serum lipid concentrations and glucose metabolism related quantitative traits in the second trimester of pregnancy...
June 7, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/28440405/copy-number-variation-analysis-in-familial-nonsyndromic-congenital-anomalies-of-the-kidney-and-urinary-tract-evidence-for-the-causative-role-of-a-transposable-element-associated-genomic-rearrangement
#7
Ekaterini Siomou, Artemis G Mitsioni, Vasileios Giapros, Ioanna Bouba, Dimitrios Noutsopoulos, Ioannis Georgiou
Most congenital anomalies of the kidney and urinary tract (CAKUT) are sporadic, but familial occurrence has been described, suggesting a genetic contribution. Copy‑number variations (CNVs) were detected in patients with CAKUT to identify possible novel genomic regions associated with CAKUT. CNVs were investigated in 7 children with CAKUT from three unrelated families using array comparative genomic hybridization: female monozygotic twins with bilateral duplex collecting system/vesicoureteral reflux (VUR)/unilateral renal hypodyspasia (URHD); two male siblings with VUR/URHD; 3 male second cousins, one with bilateral VUR/URHD, one with bilateral VUR and one with ureterovesical junction obstruction (UVJO)...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28420700/diabetes-associated-clinical-spectrum-long-term-prognosis-and-genotype-phenotype-correlations-in-201-adult-patients-with-hepatocyte-nuclear-factor-1-b-hnf1b-molecular-defects
#8
Danièle Dubois-Laforgue, Erika Cornu, Cécile Saint-Martin, Joël Coste, Christine Bellanné-Chantelot, José Timsit
OBJECTIVE: Molecular defects of hepatocyte nuclear factor 1B (HNF1B) are associated with a multiorgan disease, including diabetes (maturity-onset diabetes of the young 5) and kidney abnormalities. The HNF1B-syndrome is related to HNF1B mutations or to a 17q12 deletion spanning 15 genes, including HNF1B. Here, we described HNF1B-related diabetes and associated phenotypes and assessed genotype/phenotype correlations at diagnosis and in the long-term. RESEARCH DESIGN AND METHODS: This multicenter retrospective cohort study included 201 patients, aged 18 or older at follow-up, with HNF1B mutations (n = 101) or deletion (n = 100)...
April 18, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28409341/zebrafish-pronephros-development
#9
Richard W Naylor, Sarah S Qubisi, Alan J Davidson
The pronephros is the first kidney type to form in vertebrate embryos. The first step of pronephrogenesis in the zebrafish is the formation of the intermediate mesoderm during gastrulation, which occurs in response to secreted morphogens such as BMPs and Nodals. Patterning of the intermediate mesoderm into proximal and distal cell fates is induced by retinoic acid signaling with downstream transcription factors including wt1a, pax2a, pax8, hnf1b, sim1a, mecom, and irx3b. In the anterior intermediate mesoderm, progenitors of the glomerular blood filter migrate and fuse at the midline and recruit a blood supply...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/28387813/whole-exome-sequencing-for-prenatal-diagnosis-of-fetuses-with-congenital-anomalies-of-the-kidney-and-urinary-tract
#10
Ting-Ying Lei, Fang Fu, Ru Li, Dan Wang, Rong-Yue Wang, Xiang-Yi Jing, Qiong Deng, Zhou-Zhou Li, Ze-Qun Liu, Xin Yang, Dong-Zhi Li, Can Liao
Background.: In the absence of cytogenetic abnormality, fetuses with congenital anomalies of the kidney and urinary tract (CAKUT) with/without other structural anomalies show a higher likelihood of monogenic causes; however, defining the underlying pathology can be challenging. Here, we investigate the value of whole-exome sequencing (WES) in fetuses with CAKUT but normal findings upon karyotyping and chromosome microarray analysis. Methods.: WES was performed on DNA from the cord blood of 30 fetuses with unexplained CAKUT with/without other structural anomalies...
April 6, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28324003/biliary-anomalies-in-patients-with-hnf1b-diabetes
#11
Jarno L T Kettunen, Helka Parviainen, Päivi J Miettinen, Martti Färkkilä, Marjo Tamminen, Pia Salonen, Eila Lantto, Tiinamaija Tuomi
Context: The clinical spectrum of organogenetic anomalies associated with HNF1B mutations is heterogeneous. Besides cystic kidney disease, diabetes, and various other manifestations, odd cases of mainly neonatal and posttransplantation cholestasis have been described. The biliary phenotype is incompletely defined. Objective: To systematically characterize HNF1B-related anomalies in the bile ducts by imaging with magnetic resonance imaging (MRI) or magnetic resonance cholangiopancreatography (MRCP)...
June 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28285191/polychlorinated-biphenyls-153-induces-metabolic-dysfunction-through-activation-of-ros-nf-%C3%AE%C2%BAb-signaling-via-downregulation-of-hnf1b
#12
Hao Wu, Weihua Yu, Fansen Meng, Jie Mi, Jie Peng, Jiangzheng Liu, Xiaodi Zhang, Chunxu Hai, Xin Wang
Polychlorinated biphenyls (PCB) is a major type of persistent organic pollutants (POPs) that act as endocrine-disrupting chemicals. In the current study, we examined the mechanism underlying the effect of PCB-153 on glucose and lipid metabolism in vivo and in vitro. We found that PCB-153 induced per se and worsened high fat diet (HFD)-resulted increase of blood glucose level and glucose and insulin intolerance. In addition, PCB-153 induced per se and worsened HFD-resulted increase of triglyceride content and adipose mass...
August 2017: Redox Biology
https://www.readbyqxmd.com/read/28274157/hnf1b-tspan8-and-notch2-gene-polymorphisms-in-women-with-gestational-diabetes
#13
Maciej Tarnowski, Damian Malinowski, Krzysztof Safranow, Violetta Dziedziejko, Andrzej Pawlik
PURPOSE: To investigate genes involved in pancreatic beta cell function, insulin production and glucose metabolism that may predispose to gestational diabetes mellitus (GDM). METHODS: The study group consisted of 204 women with GDM and 207 women with normal glucose tolerance (NGT). The following polymorphisms were genotyped for each patient: HNF1B rs4430796, TSPAN8 rs7961581 and NOTCH2 rs10923931. A p value of <.05 was considered to indicate a statistically significant result...
March 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28251383/diagnostic-strategy-for-inherited-hypomagnesemia
#14
Tomoko Horinouchi, Kandai Nozu, Naohiro Kamiyoshi, Koichi Kamei, Hiroko Togawa, Yuko Shima, Yoshimichi Urahama, Tomohiko Yamamura, Shogo Minamikawa, Keita Nakanishi, Junya Fujimura, Ichiro Morioka, Takeshi Ninchoji, Hiroshi Kaito, Koichi Nakanishi, Kazumoto Iijima
BACKGROUND: Hereditary hypomagnesemia is difficult to diagnose accurately because of its rarity and the variety of causative genes. We established a flowchart for identifying responsible genes for hypomagnesemia, and we confirmed its diagnostic efficacy in patients with suspected inherited hypomagnesemia. METHODS: We established a flowchart and applied it to five index cases with suspected inherited hypomagnesemia. Direct sequence analysis was used to detect the causative gene variants in four cases, and targeted sequencing analysis using next-generation sequencing (NGS) of all causative genes for hypomagnesemia was used in one...
March 1, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28241454/next-generation-sequencing-approach-in-methylation-analysis-of-hnf1b-and-gata4-genes-searching-for-biomarkers-in-ovarian-cancer
#15
Ivana Bubancova, Helena Kovarikova, Jan Laco, Ema Ruszova, Ondrej Dvorak, Vladimir Palicka, Marcela Chmelarova
DNA methylation is well-known to be associated with ovarian cancer (OC) and has great potential to serve as a biomarker in monitoring response to therapy and for disease screening. The purpose of this study was to investigate methylation of HNF1B and GATA4 and correlate detected methylation with clinicopathological characteristic of OC patients. The study group consisted of 64 patients with OC and 35 control patients. To determine the most important sites of HNF1B and GATA4, we used next-generation sequencing...
February 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28215227/elucidating-the-mutational-landscape-in-hepatocyte-nuclear-factor-1%C3%AE-hnf1b-by-computational-approach
#16
REVIEW
P Sneha, C G P Doss
Transcription factors are the major gene-regulatory proteins that recognize specific nucleotide sequences and bind to them. Missense mutations in transcription factors play a significant role in misregulation of gene expression contributing to various diseases and disorders. Understanding their structural and functional impact of the disease-causing mutations becomes prime importance in treating a disease. Commonly associated defect with the mutations of hepatocyte nuclear factor 1 beta (HNF1B) protein, a transcription factor results in maturity-onset diabetes of the young-5 (MODY-5) leading to loss of function...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28214017/genetic-risk-factors-for-ovarian-cancer-and-their-role-for-endometriosis-risk
#17
Stefanie Burghaus, Peter A Fasching, Lothar Häberle, Matthias Rübner, Kathrin Büchner, Simon Blum, Anne Engel, Arif B Ekici, Arndt Hartmann, Alexander Hein, Matthias W Beckmann, Stefan P Renner
OBJECTIVE: Several genetic variants have been validated as risk factors for ovarian cancer. Endometriosis has also been described as a risk factor for ovarian cancer. Identifying genetic risk factors that are common to the two diseases might help improve our understanding of the molecular pathogenesis potentially linking the two conditions. METHODS: In a hospital-based case-control analysis, 12 single nucleotide polymorphisms (SNPs), validated by the Ovarian Cancer Association Consortium (OCAC) and the Collaborative Oncological Gene-environment Study (COGS) project, were genotyped using TaqMan® OpenArray™ analysis...
April 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28152181/purification-of-definitive-endoderm-generated-from-pluripotent-stem-cells-by-magnetic-cell-sorting
#18
Ulf Diekmann, Claudia Davenport, Jasmin Kresse, Ortwin Naujok
Pluripotent stem cells have the capability to differentiate into any somatic cell type of the human body. The generation of surrogate cells for the treatment of liver, lung, and pancreatic diseases is of great medical interest. First, the in vitro formation into cells of the definitive endoderm is required. Upon commitment into this lineage, the cells express transcription factors such as FOXA2, SOX17, HNF1B; GATA family members; and the surface protein CXCR4. Unfortunately, some pluripotent stem cells resist the differentiation and contaminate the culture...
February 2, 2017: Current Protocols in Stem Cell Biology
https://www.readbyqxmd.com/read/28040137/prenatal-diagnosis-of-familial-transmission-of-17q12-microduplication-associated-with-no-apparent-phenotypic-abnormality
#19
Chih-Ping Chen, Chung-Hu Fu, Yi-Hui Lin, Schu-Rern Chern, Peih-Shan Wu, Yen-Ni Chen, Shin-Wen Chen, Wayseen Wang
OBJECTIVE: We present prenatal diagnosis of familial transmission of 17q12 duplication associated with no apparent phenotypic abnormality. CASE REPORT: A 36-year-old woman underwent amniocentesis at 17 weeks of gestation because of advanced maternal age. Cytogenetic analysis revealed a karyotype of 46,XY. Array comparative genomic hybridization of uncultured amniocytes revealed a 1.42-Mb duplication of 17q12 or arr 17q12 (34,822,465-36,243,365) × 3 encompassing 12 Online Mendelian Inheritance in Man (OMIM) genes including LHX1, ACACA, and HNF1B...
December 2016: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27913849/targeted-next-generation-sequencing-reveals-mody-in-up-to-6-5-of-antibody-negative-diabetes-cases-listed-in-the-norwegian-childhood-diabetes-registry
#20
Bente B Johansson, Henrik U Irgens, Janne Molnes, Paweł Sztromwasser, Ingvild Aukrust, Petur B Juliusson, Oddmund Søvik, Shawn Levy, Torild Skrivarhaug, Geir Joner, Anders Molven, Stefan Johansson, Pål R Njølstad
AIMS/HYPOTHESIS: MODY can be wrongly diagnosed as type 1 diabetes in children. We aimed to find the prevalence of MODY in a nationwide population-based registry of childhood diabetes. METHODS: Using next-generation sequencing, we screened the HNF1A, HNF4A, HNF1B, GCK and INS genes in all 469 children (12.1%) negative for both GAD and IA-2 autoantibodies and 469 antibody-positive matched controls selected from the Norwegian Childhood Diabetes Registry (3882 children)...
December 2, 2016: Diabetologia
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