Y Chromosome
Mostrando 1-12 de 1217 artigos, teses e dissertações.
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1. How history and geography may explain the distribution in the Comorian archipelago of a novel mutation in DNA repair-deficient xeroderma pigmentosum patients
Abstract Xeroderma pigmentosum (XP) is a rare, genetic, autosomal nucleotide excision repair-deficient disease characterized by sun-sensitivity and early appearance of skin and ocular tumors. Thirty-two black-skinned XP from Comoros, located in the Indian Ocean, were counted, rendering this area the highest world prevalence of XP. These patients exhibited a
Genet. Mol. Biol.. Publicado em: 13/12/2019
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2. Germ Cell Tumors in Dysgenetic Gonads
This review describes the germ cell neoplasms that are malignant and most commonly associated with several types of gonadal dysgenesis. The most common neoplasm is gonadoblastoma, while others including dysgerminomas, yolk-sac tumors and teratomas are rare but can occur. The purpose of this review is to evaluate the incidences of these abnormalities and th
Clinics. Publicado em: 11/11/2019
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3. Cytotaxonomy of Dipetalogaster maxima Uhler, 1894 (Hemiptera, Reduviidae, Triatominae)
Resumo A tribo Triatomini consiste em dez gêneros e é considerada uma das tribos mais importantes do ponto de vista epidemiológico. O gênero Dipetalogaster Usinger, 1939 é composto apenas pela espécie Dipetalogaster maxima Uhler, 1894. Este triatomíneo é exclusivo do México e é um vetor potencial da doença de Chagas. Além da importância epidemio
Braz. J. Biol.. Publicado em: 11/11/2019
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4. Development of an Extraction Protocol for Fetal Sexing from the Fourth Week of Gestation by Real Time PCR
Abstract Low number of fetal cells in maternal blood limited the use of fetal materials in diagnostic and clinical applications. This research developed a technology which allowed the extraction of fetal DNA by a non-invasive method that offers no risk to the mother or fetus. A total of 132 pregnant women participated in this inquiry. The DNA extraction was
Braz. arch. biol. technol.. Publicado em: 24/10/2019
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5. Sexagem em tamanduá-bandeira (Myrmecophaga tridactyla) por meio do teste da reação em cadeia da polimerase
RESUMO Em tamanduá-bandeira (Myrmecophaga tridactyla) não há dimorfismo sexual, tornando-se necessária a diferenciação entre machos e fêmeas, em especial naqueles indivíduos com finalidade reprodutiva. Entre as diversas técnicas empregadas para a caracterização sexual, a reação em cadeia da polimerase (PCR) é utilizada em mamíferos para identi
Arq. Bras. Med. Vet. Zootec.. Publicado em: 06/06/2019
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6. The role of fetal-maternal microchimerism as a natural-born healer in integrity improvement of maternal damaged kidney
ABSTRACT Purpose: To identify the fetal stem cell (FSC) response to maternal renal injury with emphasis on renal integrity improvement and Y chromosome detection in damaged maternal kidney. Materials and Methods: Eight non-green fluorescent protein (GFP) transgenic Sprague-Dawley rats were mated with GFP-positive transgenic male rats. Renal damage was indu
Int. braz j urol.. Publicado em: 2018-06
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7. Yersinia pestis detection by loop-mediated isothermal amplification combined with magnetic bead capture of DNA
ABSTRACT We developed a loop-mediated isothermal amplification (LAMP) assay for the detection of Y. pestis by targeting the 3a sequence on chromosome. All 11 species of the genus Yersinia were used to evaluate the specificity of LAMP and PCR, demonstrating that the primers had a high level of specificity. The sensitivity of LAMP or PCR was 2.3 or 23 CFU for
Braz. J. Microbiol.. Publicado em: 2018-03
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8. Cytogenetics and Molecular Genetic Analysis of Chimerism in Marmosets (Callithrix: Primates)
ABSTRACT The birth of fraternal twins is a characteristic frequently observed in callitrichids. Cytogenetic studies have demonstrated hematopoietic chimerism in marmosets with the occurrence of two cell lines 2n=46,XX/46,XY in females and males co-twins, without phenotypic changes. Amplification by PCR have also been used to verify the presence of the SRY ge
An. Acad. Bras. Ciênc.. Publicado em: 2017-12
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9. Description of the karyotypes of Stejneger's beaked whale (Mesoplodon stejnegeri) and Hubbs’ beaked whale (M. carlhubbsi)
Abstract The genus Mesoplodon (Cetacea: Odontoceti: Ziphiidae) is one of the few cetacean genera with the karyotype 2n = 42. The 2n = 42 karyotype of M. europaeus and M. carlhubbsi is largely consistent with the general cetacean karyotype 2n = 44, although other 2n = 42 karyotypes do not exhibit clear homologies with the general cetacean karyotype. Therefore
Genet. Mol. Biol.. Publicado em: 02/10/2017
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10. Análisis del cariotipo del híbrido natural Aloe x spinosissima y de sus parentales Aloe arborescens y Aloe humilis, mediante bandeo cromosómico C, CMA y DAPI
Abstract The karyotype of three species of Aloe was studied with C-Giemsa, CMA (Chromomycin A3) and DAPI (4'-6-diamino-2.fenildol) chromosome banding in order to make contributions in their cariomorfometría, location, size studied bands, and discuss cytogenetic evidence of hybrid origin reported in A. x spinossisima. The entities studied have a 2n = 2x = 14
Rodriguésia. Publicado em: 2017-09
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11. Growth hormone insensitivity with immune dysfunction caused by a STAT5B mutation in the south of Brazil: evidence for a founder effect
ABSTRACT Homozygous STAT5B mutations causing growth hormone insensitivity with immune dysfunction were described in 10 patients since 2003, including two Brazilian brothers from the south of Brazil. Our objectives were to evaluate the prevalence of their STAT5B mutation in this region and to analyze the presence of a founder effect. We obtained DNA samples f
Genet. Mol. Biol.. Publicado em: 05/06/2017
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12. Hippocampal overexpression of Down syndrome cell adhesion molecule in amyloid precursor protein transgenic mice
Down syndrome cell adhesion molecule (DSCAM) is located within the Down syndrome critical region of chromosome 21. DSCAM is a broadly expressed neurodevelopmental protein involved in synaptogenesis, neurite outgrowth, and axon guidance. We previously demonstrated DSCAM overexpression in the cortex of amyloid precursor protein (APP) transgenic mice, suggestin
Braz J Med Biol Res. Publicado em: 15/05/2017