Results 11 to 20 of about 15,616 (182)

Turner Syndrome with Mosaicism of X Chromosome: A Case Report

open access: yesJournal of Nepal Medical Association, 2023
Turners’ syndrome, although common, is a complex syndrome that requires a multidisciplinary team to manage it. If undiagnosed prenatally or in childhood, Turners’ syndrome females often present later to gynaecologists with premature ovarian ...
Priyanka Vaidya, Achala Vaidya
doaj   +1 more source

Analysis of Y chromosome microdeletions and CFTR gene mutations as genetic markers of infertility in Serbian men [PDF]

open access: yesVojnosanitetski Pregled, 2007
Background/Aim. Impaired fertility of a male partner is the main cause of infertility in up to one half of all infertile couples. At the genetic level, male infertility can be caused by chromosome aberrations or gene mutations.
Dinić Jelena   +5 more
doaj   +1 more source

Horse Clinical Cytogenetics: Recurrent Themes and Novel Findings

open access: yesAnimals, 2021
Clinical cytogenetic studies in horses have been ongoing for over half a century and clearly demonstrate that chromosomal disorders are among the most common non-infectious causes of decreased fertility, infertility, and congenital defects.
Monika Bugno-Poniewierska   +1 more
doaj   +1 more source

Detection of Chromosome Aberrations in the Second Trimester Using Genetic Amniocentesis: Experience During 1995-2004

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2006
Objective: To retrospectively investigate the 10-year experience of prenatal diagnosis of fetal chromosome aberrations by second-trimester amniocentesis.
Jenn-Jhy Tseng   +5 more
doaj   +1 more source

Clinical cytogenetics in river buffalo

open access: yesItalian Journal of Animal Science, 2011
While autosomal numeric chromosome abnormalities are phenotipically visible (abnormal body conformation) and easily eliminated during the normal breeding selection, sex numeric abnormalities (including the cases of free-martinism), as well as the ...
L. Zicarelli   +3 more
doaj   +1 more source

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

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

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

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

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