Results 11 to 20 of about 18,587 (264)

Cytogenetic abnormalities in a sample of females with premature ovarian failure

open access: yesMiddle East Fertility Society Journal, 2022
Background Premature ovarian failure (POF) is a complex heterogeneous disorder characterized by the triad of amenorrhea, hypergonadotropinism, and hypoestrogenism in women before the expected age of menopause.
Noha M. Issa, Ghada M. Elhady
doaj   +1 more source

Prevalence and patterns of chromosomal abnormalities among Egyptian patients with infertility: a single institution’s 5-year experience

open access: yesMiddle East Fertility Society Journal, 2022
Background Chromosomal abnormalities represent an important cause of human infertility. Little is known about the prevalence of chromosomal abnormalities among Egyptian couples with infertility.
Faeza El-Dahtory   +3 more
doaj   +1 more source

Cytogenetic Findings in Mentally Retarded Iranian Patients

open access: yesBalkan Journal of Medical Genetics, 2012
We conducted a cytogenetic study on 865 individuals with idiopathic mental retardation (MR) who were admitted to the Cytogenetics Department of the Iran Blood Transfusion Organisation (IBTO) Research Centre, Tehran, Iran; these were performed on blood ...
Nasiri F.   +5 more
doaj   +1 more source

Insect Sex Determination Manipulated by Their Endosymbionts: Incidences, Mechanisms and Implications

open access: yesInsects, 2012
The sex-determining systems of arthropods are surprisingly diverse. Some species have male or female heterogametic sex chromosomes while other species do not have sex chromosomes.
Masaya Watanabe   +2 more
doaj   +1 more source

Prenatal Diagnosis and Pregnancy Outcome Analysis of High-risk Fetuses Suggested by Noninvasive Prenatal Screening [PDF]

open access: yesZhongguo quanke yixue, 2022
Background Noninvasive prenatal screening is more effective in screening for fetal aneuploidy than does traditional serological screening. We attempted to analyze the real-world data about the positive predictive value (PPV) for chromosome aneuploidy ...
Yan LUO, Bingyi ZHAO, Yanmei SUN, Haishen TIAN, Yali LI, Yanshang ZHANG, Jian GAO, Zhiqiang CUI
doaj   +1 more source

Chromosomal damage among medical staff occupationally exposed to volatile anesthetics, antineoplastic drugs, and formaldehyde

open access: yesScandinavian Journal of Work, Environment & Health, 2013
OBJECTIVES: Structural chromosomal aberrations in blood lymphocytes represent a biomarker for cellular damage caused by genotoxic carcinogens and are an indicator of increased cancer risk.
Ludovit Musak   +9 more
doaj   +1 more source

The effects of biological and life-style factors on baseline frequencies of chromosome aberrations in human lymphocytes

open access: yesArchives of Pharmacy Practice, 2014
Objective: This study investigated the influence of sex and ageing on chromosomal damage and the role of life-style habits on the frequency of chromosomal aberrations (CAs) in peripheral blood lymphocytes (PBLs) of healthy Bosnian subjects. Materials and
Hilada Nefic, Jasmin Musanovic
doaj   +1 more source

Classical and molecular cytogenetic studies in some cattle breeds

open access: yesItalian Journal of Animal Science, 2010
Numerical autosome aberrations have a few importance in the animal breeding since the carriers show generally abnormal body conformation. For this reason, these abnormalities are systematically eliminated from the animal population by the breeders during
G. Succi   +7 more
doaj   +1 more source

Resúmenes de la Literatura Actual

open access: yesRevista Colombiana de Obstetricia y Ginecología, 1971
Intervalo entre la conizacion cervical y la histerectomía Un método enzimático para el diagnostico de la mola hidatidiforme Carcinoma de la vulva Fenotipo de Turner con cromosomas sexuales normales Phenotypic aspects of sex chromosome aberrations La
Federación Colombiana de Obstetricia y Ginecología
doaj   +1 more source

45,X/46,XY Mosaicism in an 18-year-old Girl with Primary Amenorrhea: A Case Report

open access: yesJournal of the ASEAN Federation of Endocrine Societies, 2020
45,X/46,XY mosaicism is a rare disorder with a wide heterogeneity in its manifestations. An 18-year-old girl was referred to the endocrine clinic for investigation of her primary amenorrhea. Clinical examination was unremarkable.
Eunice Yi Chwen Lau, Yin Khet Fung
doaj   +1 more source

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