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Cytogenetics

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https://www.readbyqxmd.com/read/28721613/comparative-toxicity-of-seven-rare-earth-elements-in-sea-urchin-early-life-stages
#1
Marco Trifuoggi, Giovanni Pagano, Marco Guida, Anna Palumbo, Antonietta Siciliano, Maria Gravina, Daniel M Lyons, Petra Burić, Maja Levak, Philippe J Thomas, Antonella Giarra, Rahime Oral
The widespread use of rare earth elements (REEs) in a number of technological applications raises unanswered questions related to REE-associated adverse effects. We have previously reported on the multiple impact of some REEs on the early life stages of the sea urchin Paracentrotus lividus. The present investigation was to evaluate REE toxicity to early life stages in two unrelated sea urchin species, Sphaerechinus granularis and Arbacia lixula. The comparative toxicities were tested of seven REEs, namely yttrium, lanthanum, cerium, neodymium, samarium, europium and gadolinium as chloride salts at concentrations ranging from 10(-7) to 10(-4) M...
July 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28721056/onset-of-chronic-myeloid-leukemia-with-complex-karyotype-in-a-pregnant-patient-case-report-and-revision-of-literature
#2
Nicola Sgherza, Elisabetta Abruzzese, Gianni Perla, Maria Marta Minervini, Vincenzo Chiello, Natale Sciannamè, Nicola Cascavilla
Approximately 10%-12% of patients in chronic-phase chronic myeloid leukemia (CP-CML) have additional chromosomal aberrations at diagnosis; moreover, CML occurs in up to 10% of pregnancy-associated leukemias, with an annual incidence of 1 per 100,000 pregnancies. In this report we describe the case of a 36-year-old female with CP-CML diagnosed in the 18th week of pregnancy and with a new complex variant translocation t(4;9;22;21)(q24;q34;q11;q22) and an additional chromosomal aberration t(1;20)(p36;p11). In consideration of her pregnancy, the patient strictly monitored her blood cell count without any specific treatment...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28719894/karyotype-evolution-and-phylogenetic-relationships-of-cricetulus-sokolovi-orlov-et-malygin-1988-cricetidae-rodentia-inferred-from-chromosomal-painting-and-molecular-data
#3
Natalia S Poplavskaya, Svetlana A Romanenko, Natalia A Serdyukova, Vladimir A Trifonov, Fengtang Yang, Wenhui Nie, Jinghuan Wang, Anna A Bannikova, Alexey V Surov, Vladimir S Lebedev
Sokolov's dwarf hamster (Cricetulus sokolovi) is the least studied representative of the striped hamsters (Cricetulus barabensis species group), the taxonomy of which remains controversial. The species was described based on chromosome morphology, but neither the details of the karyotype nor the phylogenetic relationships with other Cricetulus are known. In the present study, the karyotype of C. sokolovi was examined using cross-species chromosome painting. Molecular and cytogenetic data were employed to determine the phylogenetic position of Sokolov's hamster and to analyze the potential pathways of chromosome evolution in Cricetulus...
July 19, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28718760/cd25-expression-and-outcomes-in-older-patients-with-acute-myelogenous-leukemia-treated-with-plerixafor-and-decitabine
#4
John N Allan, Gail J Roboz, Gulce Askin, Ellen Ritchie, Joseph Scandura, Paul Christos, Duane C Hassane, Monica L Guzman
We investigated CD25 expression in older (≥60 years) patients with new acute myelogenous leukemia treated with decitabine and plerixafor. Patients resistant to therapy or survival ≤1 year had significantly higher percentages of CD25(pos) myeloid blasts in baseline bone marrow. CD25(pos) patients had an increased odds of resistance compared to CD25(neg) patients (p = .015). In univariate analysis, we found CD25(pos) patients had inferior survival compared to CD25(neg) (p = .002). In patients with intermediate risk cytogenetics, CD25(pos) status stratified patients associating with inferior survival (p = ...
July 18, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28715941/moderate-anemia-at-diagnosis-is-an-independent-prognostic-marker-of-the-eutos-sokal-and-hasford-scores-for-survival-and-treatment-response-in-chronic-phase-chronic-myeloid-leukemia-patients-with-frontline-imatinib
#5
Po-Shen Ko, Yuan-Bin Yu, Yao-Chung Liu, Yi-Tsui Wu, Man-Hsin Hung, Jyh-Pyng Gau, Chia-Jen Liu, Liang-Tsai Hsiao, Po-Min Chen, Tzeon-Jye Chiou, Chun-Yu Liu, Jin-Hwang Liu
OBJECTIVES: We aimed to examine the prognostic value of anemia for the diagnosis of chronic myeloid leukemia in the chronic phase (CML-CP) receiving imatinib. METHODS: One hundred fifty-four CML-CP patients were enrolled. The influences of moderate anemia with hemoglobin (Hb) < 10 g/dl, four scoring systems and the early molecular response at three months (BCR-ABL ≤ 10%; 3M-EMR) on the achievement of a deep molecular response (DMR, MR4.5), progression-free survival (PFS), event-free survival (EFS) and overall survival (OS) were compared...
July 18, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28714319/protective-effect-of-teucrium-polium-on-carbon-tetrachloride-induced-genotoxicity-and-oxidative-stress-in-rats
#6
Fatma Rahmouni, Mongi Saoudi, Nahed Amri, Abdelfattah El-Feki, Tarek Rebai, Riadh Badraoui
This study aimed to investigate the protective effects of Teucrium polium (TP) on carbon tetrachloride (CCl4) induced spleen, erythrocyte's oxidative stress, and genotoxicity in rats. TP was found to contain large amounts of polyphenols (150 mg GAE/G of dry plant) and flavonoids (60 mg QE/g of quercetin dry plant). The CCl4 (0.5 ml/kg) treated rats exhibited significant reductions in serum vitamin A (VA), vitamin E (VE) and total antioxidant status (TAS). Thiobarbituric acid reactive substances (TBARS) and conjugated dienes (CD) were significantly high in the CCl4 group compared to controls...
July 16, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28714247/-molecular-cytogenetics-to-characterize-mechanisms-of-gene-duplication-in-pesticide-resistance
#7
REVIEW
Mithila Jugulam, Bikram S Gill
Recent advances in molecular cytogenetics empower construction of physical maps to illustrate the precise position of genetic loci on the chromosomes. Such maps provide visible information about the position of DNA sequences, including the distribution of repetitive sequences on the chromosomes. This will be an important step forward toward unraveling the genetic mechanisms implicated in chromosomal aberrations (e.g., gene duplication). In response to stress, such as pesticide selection, the duplicated genes provide an immediate adaptive advantage to organisms that overcome unfavorable conditions...
July 17, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28713994/molecular%C3%A2-cytogenetic-study-of-de-novo-mosaic-karyotype-45-x-46-x-i-yq-46-x-idic-yq-in-an-azoospermic-male-case-report-and-literature-review
#8
Yuting Jiang, Ruixue Wang, Linlin Li, Lintao Xue, Shu Deng, Ruizhi Liu
The present study describes a 36‑year‑old male with the 45,X/46,X,i(Yq)/46,X,idic(Yq) karyotype, who suffered from azoospermia attributed to maturation arrest of the primary spermatocyte. To the best of our knowledge, this rare karyotype has not yet been reported in the literature. The results of detailed molecular‑cytogenetic studies of isodicentric (idic)Y chromosomes and isochromosome (iso)Y, which are identified in patient with complex mosaic karyotypes, are presented. The presence of mosaicism of the three cell lines 45,X, 46,X,i(Yq) and 46,X,idic(Yq) may be a contributing factor for spermatogenic failure, in addition to the instability of iso/idic Y chromosomes to pass the spermatogenesis process...
July 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713819/differential-analysis-of-genetic-epigenetic-and-cytogenetic-abnormalities-in-aml
#9
Mirazul Islam, Zahurin Mohamed, Yassen Assenov
Acute myeloid leukemia (AML) is a haematological malignancy characterized by the excessive proliferation of immature myeloid cells coupled with impaired differentiation. Many AML cases have been reported without any known cytogenetic abnormalities and carry no mutation in known AML-associated driver genes. In this study, 200 AML cases were selected from a publicly available cohort and differentially analyzed for genetic, epigenetic, and cytogenetic abnormalities. Three genes (FLT3, DNMT3A, and NPMc) are found to be predominantly mutated...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28712935/phase-ii-study-of-sequential-infusion-of-dli-and-cytokine-induced-killer-cells-for-patients-relapsed-after-allohsct
#10
Martino Introna, Federico Lussana, Alessandra Algarotti, Elisa Gotti, Rut Valgarsdottir, Caterina Micò, Anna Grassi, Chiara Pavoni, Maria Luisa Ferrari, Federica Delaini, Elisabetta Todisco, Irene Cavattoni, Sara Deola, Ettore Biagi, Adriana Balduzzi, Attilio Rovelli, Matteo Parma, Sara Napolitano, Giusy Sgroi, Emanuela Marrocco, Paolo Perseghin, Daniela Belotti, Benedetta Cabiati, Giuseppe Gaipa, Josée Golay, Andrea Biondi, Alessandro Rambaldi
Seventy-four patients relapsed after allogeneic stem cell transplantation were enrolled in a phase IIA study and treated with the sequential infusion of donor lymphocytes (DLI) followed by cytokine induced killer (CIK) cells. Seventy-three patients were available for the intention to treat analysis. At least one infusion of CIK cells was given to 59 patients, while 43 patients received the complete cell therapy planned (58%). Overall, 12 patients (16%) developed acute GvHD (aGvHD, of grade I-II in 7 cases and grade III-IV in 5)...
July 13, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28712742/analyses-of-treatment-outcome-according-to-age-in-patients-with-chronic-myeloid-leukemia-receiving-front-line-imatinib-therapy
#11
Irena Ćojbašić, Lana Mačukanović-Golubović, Miodrag Vučić, Ivan Tijanić
BACKGROUND: Previous studies have indicated that the effect of age at the diagnosis of chronic myeloid leukemia (CML) is minimized in patients treated with imatinib. The treatment response and survival rates were similar for younger and elderly patients. The aim of the present study was to evaluate the effect of age on the treatment outcomes in patients with CML receiving front-line imatinib therapy. PATIENTS AND METHODS: Using age, 101 patients were divided into 3 groups: young (age, 18-44 years; YP), middle-age (age, 45-64 years; MP), and elderly (age, ≥ 65 years; EP)...
June 24, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28711728/allogeneic-blood-or-marrow-transplantation-with-post-transplantation-cyclophosphamide-as-graft-versus-host-disease-prophylaxis-in-multiple-myeloma
#12
Nilanjan Ghosh, Xiaobu Ye, Hua-Ling Tsai, Javier Bolaños-Meade, Ephraim J Fuchs, Leo Luznik, Lode J Swinnen, Douglas E Gladstone, Richard F Ambinder, Ravi Varadhan, Satish Shanbhag, Robert A Brodsky, Ivan M Borrello, Richard J Jones, William Matsui, Carol Ann Huff
Allogeneic blood or marrow transplantation (alloBMT) may lead to long-term disease control in patients with multiple myeloma (MM). However, historically, the use of alloBMT in MM has been limited by its high non-relapse mortality (NRM) rates primarily from graft versus host disease (GVHD). We previously demonstrated that post-transplantation cyclophosphamide (PTCy) decreases the toxicities of both acute and chronic GVHD rates following alloBMT. Here we examine the impact of PTCy in MM patients undergoing alloBMT at Johns Hopkins Hospital...
July 12, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28711366/-contribution-of-chromosomal-microarray-analysis-by-a-multidisciplinary-prenatal-diagnosis-center
#13
C Bartholmot, E Mousty, F Grosjean, Y Petrov, P Khau Van Kien, J Chiesa, V Letouzey
OBJECTIVE: Chromosomal analysis by array CGH is a cytogenetic technique that has opened its application to prenatal diagnosis in recent years. The main objective of the study was to analyze the contribution for couples using chromosomal analysis by array CGH in a CPDPN. METHODS: A retrospective cohort study was conducted in 2015 in a CPDPN. All the patients with array CGH analysis were included in the study. The analysis indications were CN≥3.5mm, ultrasound signs, intra-uterine growth retardation and fetal deaths...
July 12, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28710806/clinical-features-and-prognostic-impact-of-prdm16-expression-in-adult-acute-myeloid-leukemia
#14
Genki Yamato, Hiroki Yamaguchi, Hiroshi Handa, Norio Shiba, Machiko Kawamura, Satoshi Wakita, Koiti Inokuchi, Yusuke Hara, Kentaro Ohki, Jun Okubo, Myoung-Ja Park, Manabu Sotomatsu, Hirokazu Arakawa, Yasuhide Hayashi
High PRDM16 (also known as MEL1) expression is a representative marker of acute myeloid leukemia (AML) with NUP98-NSD1 and is a significant predictive marker for poor prognosis in pediatric AML. However, the clinical features of adult AML with PRDM16 expression remain unclear. PRDM16 is highly homologous to MDS1/EVI1, which is an alternatively spliced transcript of MECOM (also known as EVI1). We investigated PRDM16 expression in 151 AML patients, with 47 (31%) exhibiting high PRDM16 expression (PRDM16/ABL1 ratio ≥ 0...
July 14, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28709395/karyotype-differentiation-in-tellin-shells-bivalvia-tellinidae
#15
Daniel García-Souto, Gonzalo Ríos, Juan J Pasantes
BACKGROUND: Although Tellinidae is one of the largest and most diverse families of bivalves, its taxonomy is utterly chaotic. This is mainly due to the morphological diversity and homoplasy displayed by their shells and to the scarcity of the molecular phylogenetic studies performed on them. A molecular cytogenetic analysis of four tellin shell species, Bosemprella incarnata, Macomangulus tenuis, Moerella donacina and Serratina serrata, was performed. To molecularly characterize the analyzed specimens, the sequence of a fragment of the mitochondrial cytochrome c oxidase subunit I (COI) was also studied...
July 14, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28708320/monosomy-7-del-7q-in-inherited-bone-marrow-failure-syndromes-a-systematic-review
#16
REVIEW
Alex Pezeshki, Shreya Podder, Ralph Kamel, Seth J Corey
Inherited bone marrow failure syndromes (IBMFS) are rare cancer predisposition syndromes with an especially high risk of transformation to myelodysplastic syndrome (MDS) and/or acute myeloid leukemia (AML). We performed a retrospective systematic review of reported MDS/AML arising in the eight most common IBMFS to determine the frequency and outcome of chromosome 7 abnormalities. We identified 738 MDS/AML cases of 4,293 individuals. Monosomy 7 or del (7q) occurred in ∼17%. Greater understanding of the roles played by sequential acquisition of genetic and cytogenetic changes will provide insights into myeloid leukemogenesis and improve the surveillance and hopefully outcomes for individuals with IBMFS...
July 14, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28707225/establishment-and-characterization-of-a-brain-cell-line-from-sea-perch-lateolabrax-japonicus
#17
Yao Le, Yunlong Li, Yilin Jin, Peng Jia, Kuntong Jia, Meisheng Yi
A continuous cell line, designated LJB, derived from the brain of sea perch (Lateolabrax japonicus) was established. LJB cells have been subcultured for more than 60 times in Dulbecco's modified Eagle's medium (DMEM) supplemented with 15% fetal bovine serum (FBS) since the initial primary culture. LJB cells exhibited maximum growth rate at 28°C in DMEM supplemented with 20% FBS. Cytogenetic analysis indicated that the modal chromosome number was 48, which was identical with the chromosome number of embryonic stem-like cells of sea perch...
July 13, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28706392/acquired-aplastic-anemia-associated-with-trisomy-eight-converting-into-acute-myeloid-leukemia
#18
Sumit Grover, Amit Kumar Dhiman, Bhavna Garg, Neena Sood, Vikram Narang
Aplastic anemia (AA) is nowadays considered to be a clonal disorder arising from a defective hematopoietic stem cell developing after a generalized insult to bone marrow. Immunosuppressive treatment (IST) of AA causes suppression of the target dominant population of haematopoietic cells allowing the defective non targeted clones to expand. This may give rise to acute leukemia. Cytogenetic studies for chromosomal aberrations such as trisomy and monosomy may help in detecting such conversions. We present a case of acquired AA in a 60-year-old male presenting with pancytopenia and hypoplastic marrow treated with antithymocyte globulin, converting into myelodysplastic syndrome and later on acute promyelocytic leukemia after being in remission for 4 years...
July 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28702402/in-the-era-of-next-generation-sequencing-is-the-cytogenetic-analysis-still-important-in-polycythemia-vera
#19
Prakas Kumar Mandal, S Kartthik
No abstract text is available yet for this article.
April 2017: South Asian Journal of Cancer
https://www.readbyqxmd.com/read/28702048/aegilops-tauschii-accessions-with-geographically-diverse-origin-show-differences-in-chromosome-organization-and-polymorphism-of-molecular-markers-linked-to-leaf-rust-and-powdery-mildew-resistance-genes
#20
Maciej Majka, Michał T Kwiatek, Joanna Majka, Halina Wiśniewska
Aegilops tauschii (2n = 2x = 14) is a diploid wild species which is reported as a donor of the D-genome of cultivated bread wheat. The main goal of this study was to examine the differences and similarities in chromosomes organization among accessions of Ae. tauschii with geographically diversed origin, which is believed as a potential source of genes, especially determining resistance to fungal diseases (i.e., leaf rust and powdery mildew) for breeding of cereals. We established and compared the fluorescence in situ hybridization patterns of 21 accessions of Ae...
2017: Frontiers in Plant Science
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