NOR Phenotype of Cyprinion macrostomus (Osteichthyes, Cyprinidae)

2008 ◽  
Author(s):  
Esref Yuksel
Keyword(s):  
Nor Phenotype

Peripheral T-cell lymphomas unspecified presenting in the skin: analysis of prognostic factors in a group of 82 patients

Blood ◽  
2003 ◽  
Vol 102 (6) ◽  
pp. 2213-2219 ◽  
Author(s):  
Marcel W. Bekkenk ◽  
Maarten H. Vermeer ◽  
Patty M. Jansen ◽  
Ariënne M. W. van Marion ◽  
Marijke R. Canninga-van Dijk ◽  
...  
Keyword(s):  
T Cell ◽  
Cell Size ◽  
Cell Lymphoma ◽  
Large Cell ◽  
Skin Lesions ◽  
T Cell Lymphoma ◽  
Peripheral T Cell Lymphoma ◽  
T Cell Lymphomas ◽  
Nor Phenotype ◽  
Peripheral T Cell Lymphomas

Abstract In the present study the clinicopathologic and immunophenotypic features of 82 patients with a CD30– peripheral T-cell lymphoma, unspecified, presenting in the skin were evaluated. The purpose of this study was to find out whether subdivision of these lymphomas on the basis of cell size, phenotype, or presentation with only skin lesions is clinically relevant. The study group included 46 primary cutaneous CD30– large cell lymphomas and 17 small/medium-sized T-cell lymphomas as well as 17 peripheral T-cell lymphomas with both skin and extracutaneous disease at the time of diagnosis. Patients with primary cutaneous small- or medium-sized T-cell lymphomas had a significantly better prognosis (5-year-overall survival, 45%) than patients with primary cutaneous CD30– large T-cell lymphomas (12%) and patients presenting with concurrent extracutaneous disease (12%). The favorable prognosis in this group with primary cutaneous small- or medium-sized T-cell lymphomas was particularly found in patients presenting with localized skin lesions expressing a CD3+CD4+CD8– phenotype. In the primary cutaneous T-cell lymphoma (CTCL) group and in the concurrent group, neither extent of skin lesions nor phenotype had any effect on survival. Our results indicate that peripheral T-cell lymphomas, unspecified, presenting in the skin have an unfavorable prognosis, irrespective of the presence or absence of extracutaneous disease at the time of diagnosis, cell size, and expression of a CD4+ or CD8+ phenotype. The only exception was a group of primary cutaneous small- or medium-sized pleomorphic CTCLs with a CD3+CD4+CD8– phenotype and presenting with localized skin lesions.

scholarly journals Structures of unique globoside elongation products present in erythrocytes with a rare NOR phenotype

Glycobiology ◽  
2006 ◽  
Vol 17 (3) ◽  
pp. 304-312 ◽  
Author(s):  
Maria Duk ◽  
Suddham Singh ◽  
Vernon N. Reinhold ◽  
Hubert Krotkiewski ◽  
Ewa Kurowska ◽  
...  
Keyword(s):  
Nor Phenotype

The karyotype and NOR phenotype ofTelestes ukliva(Cyprinidae)

2010 ◽  
Vol 59 (2) ◽  
pp. 169-173 ◽  
Author(s):  
Damir Valić ◽  
Damir Kapetanović ◽  
Davor Zanella ◽  
Milorad Mrakovčić ◽  
Emin Teskeredžić ◽  
...  
Keyword(s):  
Nor Phenotype

scholarly journals Structure of a Neutral Glycosphingolipid Recognized by Human Antibodies in Polyagglutinable Erythrocytes from the Rare NOR Phenotype

2001 ◽  
Vol 276 (44) ◽  
pp. 40574-40582 ◽  
Author(s):  
Maria Duk ◽  
Bruce B. Reinhold ◽  
Vernon N. Reinhold ◽  
Grazyna Kusnierz-Alejska ◽  
Elwira Lisowska
Keyword(s):  
Human Antibodies ◽  
Nor Phenotype

Note on the karyotype and NOR phenotype of leuciscine fish Acanthobrama marmid (Osteichthyes, Cyprinidae)

Biologia ◽  
2006 ◽  
Vol 61 (2) ◽  
Author(s):  
Muhammet Gaffaroglu ◽  
Esref Yuksel ◽  
Petr Ráb
Keyword(s):  
Chromosome Number ◽  
Sex Chromosomes ◽  
Silver Staining ◽  
Chromosome Pair ◽  
Nucleolar Organizer ◽  
Cyprinid Fish ◽  
Nucleolar Organizer Regions ◽  
Heteromorphic Sex Chromosomes ◽  
Nor Phenotype ◽  
Acrocentric Chromosomes

AbstractThe karyotype and major ribosomal sites as revealed using silver staining of Anatolian leuciscine cyprinid fish Acanthobrama marmid were studied. The diploid chromosome number was invariably 2n = 50. Karyotype consisted of eight pairs of metacentric, 13 pairs of submetacentric and four pairs of subtelocentric to acrocentric chromosomes. The largest chromosome pair of the complement was subtelo-to acrocentric characteristically, which is a characteristic cytotaxonomic marker for representatives of the cyprinid lineage Leuciscinae. The nucleolar organizer regions (NORs) were detected in the telomeres of two pairs of medium sized submeta-to subtelocentric chromosomes. No heteromorphic sex chromosomes were found. The karyotype pattern of A. marmid is nearly identical to that found in most other representatives of the Eurasian leuciscine cyprinids, while the multiple NOR phenotype appears to be more derived as opposed to a uniform one, ubiquitous in this group.

Chromosomal NOR phenotypes in North American pikes and pickerels, genus Esox, with notes on the Umbridae (Euteleostei: Esocae)

1994 ◽  
Vol 72 (11) ◽  
pp. 1951-1956 ◽  
Author(s):  
P. Ráb ◽  
E. J. Crossman
Keyword(s):  
North American ◽  
Chromosome Pair ◽  
Organizer Region ◽  
Nucleolar Organizer Region ◽  
Nucleolar Organizer ◽  
Pericentromeric Region ◽  
European Species ◽  
The North ◽  
Nor Phenotype ◽  
Umbra Krameri

A comparison was made of the localization of nucleolar organizer region (NOR) sites in the karyotypes of the North American pikes and pickerels Esox lucius, E. masquinongy, E. niger, and the two subspecies of E. americanus (Esocidae). NORs were located by silver staining or chromomycin A3 fluorescence. The study revealed that the position of chromosomal NORs in all Esox taxa examined was the same: the pericentromeric region of one middle-sized chromosome pair. The same NOR phenotype was found previously in a related European species, Umbra krameri (Umbridae), and in U. pygmaea, one of the two North American representatives of the genus. The NOR phenotype of the remaining North American species (U. limi) is different. It is hypothesized that this kind of NOR phenotype, shared by two phyletic lineages in the Esocae, represents an ancestral character for the members of that group.

scholarly journals Karyotype, C-band and NOR phenotype of Anatolian endemic fish Squalius anatolicus (Bogutskaya, 1997) (Teleostei, Leuciscidae)

2021 ◽  
Vol 38 (3) ◽  
pp. 311-315
Author(s):  
Sevgi Ünal Karakuş ◽  
Muhammet Gaffaroğlu
Keyword(s):  
Chromosome Pair ◽  
Constitutive Heterochromatin ◽  
Nucleolus Organizer ◽  
Submetacentric Chromosome ◽  
Nucleolus Organizer Regions ◽  
C Banding ◽  
Nor Phenotype ◽  
Acrocentric Chromosomes ◽  
Endemic Fish ◽  
Lake Beysehir

The karyotype and distribution of constitutive heterochromatin and nucleolus organizer regions (NORs) of Anatolian leuciscine endemic to Lake Beysehir, Squalius anatolicus (Bogutskaya, 1997) were analyzed respectively using conventional Giemsa-staining, C-banding and Ag-impregnation. Diploid chromosome number was 2n = 50 and karyotype consisted of 7 pairs of metacentric, 13 pairs of submetacentric, 5 pairs of subtelo- to acrocentric chromosomes, NF value equaled 90. Heteromorphic elements indicating sex chromosomes were not detected. C-banding revealed clear pericentromeric constitutive heterochromatin blocks in several chromosomes. Ag-impregnation revealed the size heteromorphism of NORs that covered almost the entire short arms of the middle-sized submetacentric chromosome pair. The karyotype pattern and simple NOR phenotype of S. anatolicus are nearly identical with that found not only in Squalius species analyzed to date but also in many other representatives of the Eurasian leuciscine cyprinids, which indicates remarkable chromosome stasis in this leuciscid lineage.

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