Results 41 to 50 of about 638,215 (311)

Chromosomal instability in Streptomyces avermitilis: major deletion in the central region and stable circularized chromosome

BMC Microbiology, 2010
Background The chromosome of Streptomyces has been shown to be unstable, frequently undergoing gross chromosomal rearrangements. However, the mechanisms underlying this phenomenon remain unclear, with previous studies focused on two chromosomal ends as ...
Wen Ying, Chen Zhi, Zhang Xiaojuan, He Fei, Chen Wei, Li Jilun   +5 more
doaj   +1 more source

Antenatal screening for chromosomal and genetic abnormalities:Cost effectiveness and outcome [PDF]

Journal of Analytical Research in Clinical Medicine, 2018
Introduction: As an essential part of antenatal care, pregnant women of all ages should be offered screening for chromosomal abnormalities before 20 weeks of gestation.
Simin Tagavi, Hossein Alikhah, Sharareh Barband, Fereshteh Farhadi, Mohammad Naghavi-Behzad, Saeed Jodi-Khajeh, Sahar Mohammadi, Reza Piri   +7 more
doaj   +1 more source

Optical genome mapping for detection of chromosomal aberrations in prenatal diagnosis

Acta Obstetricia et Gynecologica Scandinavica, 2023
Introduction Chromosomal aberrations are the most important etiological factors for birth defects. Optical genome mapping is a novel cytogenetic tool for detecting a broad range of chromosomal aberrations in a single assay, but relevant clinical ...
Qinxin Zhang, Yan Wang, Yiyun Xu, Ran Zhou, Mingtao Huang, Fengchang Qiao, Lulu Meng, An Liu, Jing Zhou, Li Li, Xiuqing Ji, Zhengfeng Xu, Ping Hu   +12 more
doaj   +1 more source

Could the mosaic pattern of chromosomal abnormality predict overall survival of patients with myelodysplastic syndrome?

Hematology/Oncology and Stem Cell Therapy, 2016
Objective/background: Myelodysplastic syndromes (MDSs) are a group of monoclonal hematopoietic diseases consisting of a number of various entities.
Mehmet Sevki Uyanik, Ahmet Muzaffer Demir, Idris Kurt, Muhammet Maden, Fulya Oz Puyan, Hakan Gurkan, Elif Gulsum Umit, Gulsum Emel Pamuk   +7 more
doaj   +1 more source

How does DNA break during chromosomal translocations?

, 2011
Chromosomal translocations are one of the most common types of genetic rearrangements and are molecular signatures for many types of cancers. They are considered as primary causes for cancers, especially lymphoma and leukemia.
M. Nambiar, Raghavan, Sathees C., S. C. Raghavan, Nambiar, Mridula   +3 more
core   +1 more source

Bcr/Abl Interferes with the Fanconi Anemia/BRCA Pathway: Implications in the Chromosomal Instability of Chronic Myeloid Leukemia Cells [PDF]

, 2010
Chronic myeloid leukemia (CML) is a malignant clonal disorder of the hematopoietic system caused by the expression of the BCR/ABL fusion oncogene. Although it is well known that CML cells are genetically unstable, the mechanisms accounting for this ...
Valeri, Antonio, Beatriz Albella, Agirre, Xabier, Casado, José A., Pujol, MR, Rio, P, Bueren, Juan, Ariana Jacome, Albella Beatriz, Maria Eugenia Alonso-Ferrero, Juan A Bueren, Alonso-Ferrero, Maria Eugenia, María Roser Pujol, Hanenberg, H. (H.), Jacome Ariana, Alonso-Ferrero, ME, Hanenberg, H, Perez, L, Pérez-Fuentes, L. (Laura), Agirre, X, Jacome, A, Juan A. Bueren, Jacome, Ariana, Río Paula, Pujol María Roser, Surrallés Jordi, Prosper-Cardoso, F. (Felipe), Pérez Laura, Maria José Calasanz, Surralles, J. (Jordi), Hanenberg, Helmut, Prosper Felipe, Helmut Hanenberg, Pérez, Laura, Casado, J. (J.A.), Jacome, A. (Ariana), Albella, Beatriz, Bueren, JA, Hanenberg Helmut, Agirre Xabier, Bueren, J.A. (Juan A.), Valeri, A. (Antonio), Rio, P. (Paula), Calasanz-Abinzano, M.J. (Maria Jose), Prosper, F, José A Casado, Laura Pérez, Paula Río, Río, Paula, Antonio Valeri, Casado José A., Valeri Antonio, Jordi Surrallés, Casado, JA, Calasanz Maria José, Felipe Prosper, Surralles, J, José A. Casado, Calasanz, MJ, Albella, B, Albella, B. (B.), Alonso-Ferrero Maria Eugenia, Valeri, A, Alonso-Ferrero, M. (M.E.), Pujol, M.R. (María Roser), Bueren Juan A., Aguirre-Ena, X. (Xabier), Xabier Agirre, Prosper, Felipe, Calasanz, M.J., Pujol Calvet, Maria Roser, Surralles, Jordi   +71 more
core   +2 more sources

A case–control study identifying the frequency and spectrum of chromosomal anomalies and variants in a cohort of 1000 couples with a known history of recurrent pregnancy loss in the Eastern region of India

Journal of Human Reproductive Sciences, 2021
Background: Recurrent pregnancy loss (RPL) is a common occurrence that affects up to 15% of couples in their reproductive years. In both males and females with RPL and infertility, chromosomal abnormalities play a significant impact.
Abhik Chakraborty, Sujata Kar, Purna Chandra Mohapatra, Birendranath Banerjee   +3 more
doaj   +1 more source

Supercoiling Theory and Model of Chromosomal Structures in Eukaryotic Cells [PDF]

, 2019
About six billion base pairs of DNA reside highly orderly in each human cell’s nucleus through their manifestation as twenty-three pairs of chromosomes.
Tianhu, Li, Hao, Zhang
core   +1 more source

Chromosomal deletions detected at amniocentesis

Taiwanese Journal of Obstetrics & Gynecology, 2014
Objective: The aim of this study is to present the incidence, prenatal and postnatal findings, and modes of ascertainment in chromosomal deletions detected at amniocentesis.
Chen-Ju Lin, Chih-Ping Chen, Shu-Chin Chien, Chen-Chi Lee, Dai-Dyi Town, Wen-Lin Chen, Li-Feng Chen, Meng-Shan Lee, Chen-Wen Pan, Ku-Chien Lin, Tze-Tien Yeh   +10 more
doaj   +1 more source

Cytogenetic findings in patients with intellectual disability and/or multiple congenital anomalies [PDF]

Journal of Analytical Research in Clinical Medicine, 2016
Introduction: Chromosomal abnormalities are a major etiology of intellectual disability (ID) and multiple congenital anomalies (MCAs). Screening for chromosomal aberrations by clinical diagnostic techniques has been primarily performed ...
Sima Derakhshan, Mahmoud Khaniani
doaj   +1 more source