Results 11 to 20 of about 30,111 (184)
Gastritis Stages in Monozygotic and Dizygotic Dyspeptic Twins
Background. The progression of Helicobacter pylori-associated gastritis towards atrophic gastritis is modulated by host-related and environmental factors.
Mindaugas Urba+7 more
doaj +1 more source
A Twin Study of Early-Childhood Asthma in Puerto Ricans [PDF]
Background:The relative contributions of genetics and environment to asthma in Hispanics or to asthma in children younger than 3 years are not well understood.Objective:To examine the relative contributions of genetics and environment to early-childhood ...
Bunyavanich, S+6 more
core +8 more sources
Rare spontaneous monochorionic dizygotic twins: a case report and a systematic review
Background Monochorionic dizygotic twins are a rare condition, mostly related to assisted reproductive technology. This type of twinning is burdened by the same risk of pregnancy complications found in monochorionic monozygotic pregnancies.
Giulia Trombetta+5 more
doaj +1 more source
Inheritance in Human Dizygotic Twinning [PDF]
THIS paper is concerned with the question of whether the father plays any part in the occurrence of twins among his children.
White, Colin, Wyshak, Grace
openaire +3 more sources
Confined Blood Chimerism in Monochorionic Dizygotic Twins Conceived Spontaneously
Traditionally, monochorionicity has been regarded as synonymous with monozygosity. However, several recent cases of monochorionic dizygotic twins have shown that monochorionic twins can be dizygous.
Takashi Kanda+2 more
doaj +1 more source
Handedness in twins: meta-analyses
Background In the general population, 10.6% of people favor their left hand over the right for motor tasks. Previous research suggests higher prevalence of atypical (left-, mixed-, or non-right-) handedness in (i) twins compared to singletons, and in (ii)
Lena Sophie Pfeifer+5 more
doaj +1 more source
Protease inhibitor (Pi) locus, fertility and twinning [PDF]
In a sample of 160 Dutch twin pairs and their parents, we found that mothers of dizygotic twins had frequencies of the S and Z alleles at the protease inhibitor (Pi) locus that were 3 times higher than a control sample.
Bank, R.A.+3 more
core +1 more source
A dohányzási szokásokat befolyásoló környezeti tényezők egy- és kétpetéjű ikrek körében [PDF]
Introduction: Smoking habits are influenced by environmental (family, friends) and psychologic factors. Aim: To investigate environmental factors which influence the smoking habits of monozygotic and dizygotic twins.
Bakkne Nagy M,+2 more
core +1 more source
Risk of psychiatric disorders among the surviving twins after a co-twin loss
Losing a co-twin by death is a severely stressful event yet with unknown impact on the surviving twin’s risk of psychiatric disorders. We identified all Swedish-born twins who lost a co-twin by death between 1973 and 2013 (n = 4,528), their 4939 non-twin
Huan Song+6 more
doaj +1 more source
Discordant phenotypes in twins with infantile nystagmus
Infantile nystagmus (IN) may result from aetiologies including albinism and FRMD7 mutations. IN has low prevalence, and twins with IN are rare. Whilst discordant presentation has been previously reported for IN, we present for the first time the ...
Abdullah Aamir+12 more
doaj +1 more source