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Marzocca AJ, Mansilla MA. Dynamic mechanical properties in natural rubber/styrene‐butadiene rubber blends: The local strain behavior in the glass transition region. POLYM ENG SCI 2023. [DOI: 10.1002/pen.26298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- A. J. Marzocca
- Laboratorio de Polímeros y Materiales Compuestos, Departamento de Física Universidad de Buenos Aires, Ciudad Universitaria Buenos Aires Argentina
| | - M. A. Mansilla
- INTI, CONICET, Dirección Técnica de Materiales Avanzados San Martín Argentina
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Thomas CP, Mansilla MA, Sompallae R, Mason SO, Nishimura CJ, Kimble MJ, Campbell CA, Kwitek AE, Darbro BW, Stewart ZA, Smith RJH. Screening of Living Kidney Donors for Genetic Diseases Using a Comprehensive Genetic Testing Strategy. Am J Transplant 2017; 17:401-410. [PMID: 27434427 PMCID: PMC5297870 DOI: 10.1111/ajt.13970] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 06/20/2016] [Accepted: 07/12/2016] [Indexed: 01/25/2023]
Abstract
Related living kidney donors (LKDs) are at higher risk of end-stage renal disease (ESRD) compared with unrelated LKDs. A genetic panel was developed to screen 115 genes associated with renal diseases. We used this panel to screen six negative controls, four transplant candidates with presumed genetic renal disease and six related LKDs. After removing common variants, pathogenicity was predicted using six algorithms to score genetic variants based on conservation and function. All variants were evaluated in the context of patient phenotype and clinical data. We identified causal variants in three of the four transplant candidates. Two patients with a family history of autosomal dominant polycystic kidney disease segregated variants in PKD1. These findings excluded genetic risk in three of four relatives accepted as potential LKDs. A third patient with an atypical history for Alport syndrome had a splice site mutation in COL4A5. This pathogenic variant was excluded in a sibling accepted as an LKD. In another patient with a strong family history of ESRD, a negative genetic screen combined with negative comparative genomic hybridization in the recipient facilitated counseling of the related donor. This genetic renal disease panel will allow rapid, efficient and cost-effective evaluation of related LKDs.
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Affiliation(s)
- C. P. Thomas
- Department of Internal MedicineCarver College of MedicineUniversity of IowaIowa CityIA,Department of PediatricsCarver College of MedicineUniversity of IowaIowa CityIA,VA Medical CenterIowa CityIA
| | - M. A. Mansilla
- Iowa Institute of Human GeneticsCarver College of MedicineUniversity of IowaIowa CityIA
| | - R. Sompallae
- Iowa Institute of Human GeneticsCarver College of MedicineUniversity of IowaIowa CityIA
| | - S. O. Mason
- Iowa Institute of Human GeneticsCarver College of MedicineUniversity of IowaIowa CityIA
| | - C. J. Nishimura
- Iowa Institute of Human GeneticsCarver College of MedicineUniversity of IowaIowa CityIA
| | - M. J. Kimble
- Iowa Institute of Human GeneticsCarver College of MedicineUniversity of IowaIowa CityIA
| | - C. A. Campbell
- Department of Internal MedicineCarver College of MedicineUniversity of IowaIowa CityIA,Iowa Institute of Human GeneticsCarver College of MedicineUniversity of IowaIowa CityIA
| | - A. E. Kwitek
- Iowa Institute of Human GeneticsCarver College of MedicineUniversity of IowaIowa CityIA,Department of PharmacologyCarver College of MedicineUniversity of IowaIowa CityIA
| | - B. W. Darbro
- Department of PediatricsCarver College of MedicineUniversity of IowaIowa CityIA,Interdisciplinary Program in GeneticsUniversity of IowaIowa CityIA,The Holden Comprehensive Cancer CenterUniversity of IowaIowa CityIA
| | - Z. A. Stewart
- Department of SurgeryDivision of Transplant SurgeryCarver College of MedicineUniversity of IowaIowa CityIA
| | - R. J. H. Smith
- Department of Internal MedicineCarver College of MedicineUniversity of IowaIowa CityIA,Department of PediatricsCarver College of MedicineUniversity of IowaIowa CityIA,Iowa Institute of Human GeneticsCarver College of MedicineUniversity of IowaIowa CityIA,Interdisciplinary Program in GeneticsUniversity of IowaIowa CityIA,Department of OtorhinolaryngologyCarver College of MedicineUniversity of IowaIowa CityIA
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Mansilla MA, Merino O, Risopatrón J, Isachenko V, Isachenko E, Sánchez R. High temperature is essential for preserved human sperm function during the devitrification process. Andrologia 2015; 48:111-3. [DOI: 10.1111/and.12406] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2014] [Indexed: 11/29/2022] Open
Affiliation(s)
- M. A. Mansilla
- Center for Reproductive Biotechnology (CEBIOR-BIOREN); Faculty of Medicine; La Frontera University; Temuco Chile
| | - O. Merino
- Center for Reproductive Biotechnology (CEBIOR-BIOREN); Faculty of Medicine; La Frontera University; Temuco Chile
| | - J. Risopatrón
- Center for Reproductive Biotechnology (CEBIOR-BIOREN); Faculty of Medicine; La Frontera University; Temuco Chile
- Department of Basic Sciences; Faculty of Medicine; La Frontera University; Temuco Chile
| | - V. Isachenko
- Department of Obstetrics and Gynecology; University of Cologne; Cologne Germany
| | - E. Isachenko
- Department of Obstetrics and Gynecology; University of Cologne; Cologne Germany
| | - R. Sánchez
- Center for Reproductive Biotechnology (CEBIOR-BIOREN); Faculty of Medicine; La Frontera University; Temuco Chile
- Department of Basic Sciences; Faculty of Medicine; La Frontera University; Temuco Chile
- Department of Obstetrics and Gynecology; University of Cologne; Cologne Germany
- Department of Preclinical Sciences; Faculty of Medicine; La Frontera University; Temuco Chile
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Beaty TH, Taub MA, Scott AF, Murray JC, Marazita ML, Schwender H, Parker MM, Hetmanski JB, Balakrishnan P, Mansilla MA, Mangold E, Ludwig KU, Noethen MM, Rubini M, Elcioglu N, Ruczinski I. Confirming genes influencing risk to cleft lip with/without cleft palate in a case-parent trio study. Hum Genet 2013; 132:771-81. [PMID: 23512105 DOI: 10.1007/s00439-013-1283-6] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 02/27/2013] [Indexed: 10/27/2022]
Abstract
A collection of 1,108 case-parent trios ascertained through an isolated, nonsyndromic cleft lip with or without cleft palate (CL/P) was used to replicate the findings from a genome-wide association study (GWAS) conducted by Beaty et al. (Nat Genet 42:525-529, 2010), where four different genes/regions were identified as influencing risk to CL/P. Tagging SNPs for 33 different genes were genotyped (1,269 SNPs). All four of the genes originally identified as showing genome-wide significance (IRF6, ABCA4 and MAF, plus the 8q24 region) were confirmed in this independent sample of trios (who were primarily of European and Southeast Asian ancestry). In addition, eight genes classified as 'second tier' hits in the original study (PAX7, THADA, COL8A1/FILIP1L, DCAF4L2, GADD45G, NTN1, RBFOX3 and FOXE1) showed evidence of linkage and association in this replication sample. Meta-analysis between the original GWAS trios and these replication trios showed PAX7, COL8A1/FILIP1L and NTN1 achieved genome-wide significance. Tests for gene-environment interaction between these 33 genes and maternal smoking found evidence for interaction with two additional genes: GRID2 and ELAVL2 among European mothers (who had a higher rate of smoking than Asian mothers). Formal tests for gene-gene interaction (epistasis) failed to show evidence of statistical interaction in any simple fashion. This study confirms that many different genes influence risk to CL/P.
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Affiliation(s)
- T H Beaty
- Department of Epidemiology, School of Public Health, Johns Hopkins University, 615N Wolfe St., Baltimore, MD 21205, USA.
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Mansilla MA, Silva L, Salgueiro W, Marzocca AJ, Somoza A. A study about the structure of vulcanized natural rubber/styrene butadiene rubber blends and the glass transition behavior. J Appl Polym Sci 2011. [DOI: 10.1002/app.36321] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Butali A, Mossey PA, Adeyemo WL, Jezewski PA, Onwuamah CK, Ogunlewe MO, Ugboko VI, Adejuyigbe O, Adigun AI, Abdur-Rahman LO, Onah II, Audu RA, Idigbe EO, Mansilla MA, Dragan EA, Petrin AL, Bullard SA, Uduezue AO, Akpata O, Osaguona AO, Olasoji HO, Ligali TO, Kejeh BM, Iseh KR, Olaitan PB, Adebola AR, Efunkoya E, Adesina OA, Oluwatosin OM, Murray JC. Genetic studies in the Nigerian population implicate an MSX1 mutation in complex oral facial clefting disorders. Cleft Palate Craniofac J 2011; 48:646-53. [PMID: 21740177 DOI: 10.1597/10-133] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Orofacial clefts are the most common malformations of the head and neck, with a worldwide prevalence of 1 in 700 births. They are commonly divided into CL(P) and CP based on anatomic, genetic, and embryologic findings. A Nigerian craniofacial anomalies study (NigeriaCRAN) was set up in 2006 to investigate the role of gene-environment interaction in the origin of orofacial clefts in Nigeria. SUBJECTS AND METHODS DNA isolated from saliva from Nigerian probands was used for genotype association studies and direct sequencing of cleft candidate genes: MSX1 , IRF6 , FOXE1, FGFR1 , FGFR2 , BMP4 , MAFB, ABCA4 , PAX7, and VAX1 , and the chromosome 8q region. RESULTS A missense mutation A34G in MSX1 was observed in nine cases and four HapMap controls. No other apparent causative variations were identified. Deviation from Hardy Weinberg equilibrium (HWE) was observed in these cases (p = .00002). A significant difference was noted between the affected side for unilateral CL (p = .03) and bilateral clefts and between clefts on either side (p = .02). A significant gender difference was also observed for CP (p = .008). CONCLUSIONS Replication of a mutation previously implicated in other populations suggests a role for the MSX1 A34G variant in the development of CL(P).
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Salgueiro W, Somoza A, Silva L, Consolati G, Quasso F, Mansilla MA, Marzocca AJ. Temperature dependence on free volume in cured natural rubber and styrene-butadiene rubber blends. Phys Rev E Stat Nonlin Soft Matter Phys 2011; 83:051805. [PMID: 21728565 DOI: 10.1103/physreve.83.051805] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2010] [Revised: 04/07/2011] [Indexed: 05/31/2023]
Abstract
A systematic study on the evolution of free volume as a function of the temperature in vulcanized at 433 K natural rubber (NR) and styrene butadiene rubber (SBR) in 25-75, 50-50, 75-25 NR-SBR (percent content of pure NR and SBR, respectively) blends was studied by positron annihilation lifetime spectroscopy. All samples were prepared with sulfur and TBBS (n-t-butyl-2-benzothiazole sulfenamide) as accelerator. The glass transition temperatures of the samples studied were determined by differential scanning calorimetry (DSC) and from lifetime data. In general, a sigmoidal-like complex behavior of the long-lived lifetime component, linked to the nanohole free volume, as a function of the temperature was found. For SBR, the slope of the ortho-positronium lifetime against temperature curves could be well-fitted using a linear function. For blends and also for NR, two different linear functions were necessary. This last behavior is explained in terms of the supercooled process involving a reconfiguration of the elastomeric chains. In the case of blends, the state of cure of NR and SBR in each NR-SBR sample was also taken into account in the discussion of the results obtained. Besides, thermal expansion coefficients of the free volumes in the transition and glassy region of all compounds were estimated. The differences observed in the values of this parameter are discussed by taking into account the morphology and formulation of each blend, the crosslink densities, and the role of the interphases formed between both NR and SBR elastomers.
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Affiliation(s)
- W Salgueiro
- IFIMAT-UNCentro, Pinto 399, B7000GHG Tandil, Argentina
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Salgueiro W, Somoza A, Marzocca AJ, Torriani I, Mansilla MA. A SAXS and swelling study of cured natural rubber/styrene-butadiene rubber blends. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/polb.21828] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Osoegawa K, Vessere GM, Utami KH, Mansilla MA, Johnson MK, Riley BM, L'Heureux J, Pfundt R, Staaf J, van der Vliet WA, Lidral AC, Schoenmakers EFPM, Borg A, Schutte BC, Lammer EJ, Murray JC, de Jong PJ. Identification of novel candidate genes associated with cleft lip and palate using array comparative genomic hybridisation. J Med Genet 2007; 45:81-6. [PMID: 17873121 PMCID: PMC3732463 DOI: 10.1136/jmg.2007.052191] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM AND METHOD We analysed DNA samples isolated from individuals born with cleft lip and cleft palate to identify deletions and duplications of candidate gene loci using array comparative genomic hybridisation (array-CGH). RESULTS Of 83 syndromic cases analysed we identified one subject with a previously unknown 2.7 Mb deletion at 22q11.21 coinciding with the DiGeorge syndrome region. Eighteen of the syndromic cases had clinical features of Van der Woude syndrome and deletions were identified in five of these, all of which encompassed the interferon regulatory factor 6 (IRF6) gene. In a series of 104 non-syndromic cases we found one subject with a 3.2 Mb deletion at chromosome 6q25.1-25.2 and another with a 2.2 Mb deletion at 10q26.11-26.13. Analyses of parental DNA demonstrated that the two deletion cases at 22q11.21 and 6q25.1-25.2 were de novo, while the deletion of 10q26.11-26.13 was inherited from the mother, who also has a cleft lip. These deletions appear likely to be causally associated with the phenotypes of the subjects. Estrogen receptor 1 (ESR1) and fibroblast growth factor receptor 2 (FGFR2) genes from the 6q25.1-25.2 and 10q26.11-26.13, respectively, were identified as likely causative genes using a gene prioritization software. CONCLUSION We have shown that array-CGH analysis of DNA samples derived from cleft lip and palate subjects is an efficient and productive method for identifying candidate chromosomal loci and genes, complementing traditional genetic mapping strategies.
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Affiliation(s)
- K Osoegawa
- Center for Genetics, Children's Hospital Oakland Research Institute (CHORI), 5700 Martin Luther King Jr. Way Oakland, CA 94609, USA.
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Mansilla MA, Cooper ME, Goldstein T, Castilla EE, Lopez Camelo JS, Marazita ML, Murray JC. Contributions of PTCH gene variants to isolated cleft lip and palate. Cleft Palate Craniofac J 2006; 43:21-9. [PMID: 16405370 PMCID: PMC2151847 DOI: 10.1597/04-169r.1] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Mutations in patched (PTCH) cause the nevoid basal cell carcinoma syndrome (NBCCS), or Gorlin syndrome. Nevoid basal cell carcinoma syndrome may present with developmental anomalies, including rib and craniofacial abnormalities, and predisposes to several tumor types, including basal cell carcinoma and medulloblastoma. Cleft palate is found in 4% of individuals with nevoid basal cell carcinoma syndrome. Because there might be specific sequence alterations in PTCH that limit expression to orofacial clefting, a genetic study of PTCH was undertaken in cases with cleft lip and/or palate (CL/P) known not to have nevoid basal cell carcinoma syndrome. RESULTS Seven new normal variants spread along the entire gene and three missense mutations were found among cases with cleft lip and/or palate. One of these variants (P295S) was not found in any of 1188 control samples. A second variant was found in a case and also in 1 of 1119 controls. The third missense (S827G) was found in 5 of 1369 cases and in 5 of 1104 controls and is likely a rare normal variant. Linkage and linkage desequilibrium also was assessed using normal variants in and adjacent to the PTCH gene in 220 families (1776 individuals), each with two or more individuals with isolated clefting. Although no statistically significant evidence of linkage (multipoint HLOD peak = 2.36) was uncovered, there was borderline evidence of significant transmission distortion for one haplotype of two single nucleotide polymorphisms located within the PTCH gene (p = .08). CONCLUSION Missense mutations in PTCH may be rare causes of isolated cleft lip and/or palate. An as yet unidentified variant near PTCH may act as a modifier of cleft lip and/or palate.
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Affiliation(s)
- M A Mansilla
- Department of Pediatrics, University of Iowa, Iowa City, Iowa 52242, USA
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