scholarly journals Human Dizygotic Twinning: Evolutionary-Based Explanations/Twin Research Reviews: Conjoined Twins in a Triplet Pregnancy; Double Embryo Transfer; Health Anxiety; Delayed Delivery of the Second Twin/In the Media: Digital Marketing Twins; Bereaved Twin at March for Our Lives; Exchange of Places; Football Players Reunite as Patriots

2018 ◽  
Vol 21 (4) ◽  
pp. 325-329
Author(s):  
Nancy L. Segal
Keyword(s):  
Embryo Transfer ◽  
Health Anxiety ◽  
Conjoined Twins ◽  
Digital Marketing ◽  
Football Players ◽  
Triplet Pregnancy ◽  
Twin Research ◽  
The Media ◽  
Second Twin ◽  
Double Embryo Transfer

Human twinning poses a conundrum for researchers, given that the female uterus is optimally designed to carry a single fetus. Evolutionary explanations of dizygotic (DZ or fraternal) twinning provide insight and understanding of this reproductive event. This review is followed by summaries of recent twin research and reports concerning twins in a triplet pregnancy, double embryo transfer; a twin study of health anxiety, and delayed delivery of the second twin. Twin events reported in the media include a pair of digital marketing twins, a speech by a bereaved twin at the March for Our Lives in Washington, D.C., twins who exchanged places, and a same-team reunion of twin football players.

scholarly journals Rare Conjoined Twins / Twin Research Reviews / Twins in the News

2011 ◽  
Vol 14 (5) ◽  
pp. 490-493
Author(s):  
Nancy L. Segal
Keyword(s):  
Brain Structure ◽  
Conjoined Twins ◽  
Twin Research ◽  
Brain Functions ◽  
Parallel Lives ◽  
The Media ◽  
Twin Delivery ◽  
Delivery Options ◽  
The Brain ◽  
A Performance

Conjoined twins are rare, but craniopagus conjoined twins are rarer still. A pair of four-year-old craniopagus female twins with an unusual brain structure may offer new clues as to how the brain functions. This overview is followed by reviews of recent twin research on mothers of twins, twin transfusion syndrome, twin delivery options and twin literary themes. Relevant topics appearing in the media include twin tennis champions, twins' parallel lives and deaths, a new book for families with twins and a performance about a twin musical legend.

scholarly journals Stolen Twin: Fascination and Curiosity/Twin Research Reports: Evolution of Sleep Length; Dental Treatment of Craniopagus Twins; Cryopreserved Double Embryo Transfer; Gender Options in Multiple Pregnancy/Current Events: Appendectomy in One Twin; Autistic Twin Marathon Runners; 3D Facial Recognition; Twin Biathletes

2014 ◽  
Vol 17 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Nancy L. Segal
Keyword(s):  
Embryo Transfer ◽  
Dental Treatment ◽  
Facial Recognition ◽  
Multiple Pregnancy ◽  
Societal Implications ◽  
Marathon Runners ◽  
Twin Research ◽  
Current Events ◽  
Sleep Length ◽  
Double Embryo Transfer

The story of her allegedly stolen twin brother in Armenia is recounted by a ‘singleton twin’ living in the United States. The behavioral consequences and societal implications of this loss are considered. This case is followed by twin research reports on the evolution of sleep length, dental treatment of craniopagus conjoined twins, cryopreserved double embryo transfer (DET), and gender options in multiple pregnancy. Current events include the diagnosis of appendectomy in one identical twin, the accomplishments of autistic twin marathon runners, the power of three-dimensional (3D) facial recognition, and the goals of twin biathletes heading to the 2014 Sochi Olympics in Russia.

scholarly journals A Possible Twin: The 1960s Twin Study Revisited/Twin Research: Twin-to-Twin Heart Transplantation; Distinguishing Monozygotic Twins; Twin Conceptions via Oocyte Donation; Factors Affecting Craniofacial Traits/In the Media: Triplet Delivery in the UK; Conjoined Twins and the Concept of Self; Colombian Twin Trainers; Skin Grafting to Save an Identical Co-Twin; Lack of Physical Flaws in Dolly the Cloned Sheep; Possible Conjoined Twins of Opposite-Sex; Passing of the Remaining Twin From the World's Longest Separated Pair

2018 ◽  
Vol 21 (2) ◽  
pp. 155-162 ◽  
Author(s):  
Nancy L. Segal
Keyword(s):  
Los Angeles ◽  
Heart Transplantation ◽  
Skin Grafting ◽  
Oocyte Donation ◽  
Conjoined Twins ◽  
Unwed Mother ◽  
Factors Affecting ◽  
Twin Research ◽  
Opposite Sex ◽  
The Media

This article begins with the story of a 51-year-old Los Angeles, California man, Justin Goldberg, whose daughter caught a glimpse of his striking look-alike at a popular market. Many people have so-called doppelgängers, but this occurrence is especially intriguing — the individual in question, born in New York City in the mid-1960s to an unwed mother, was an adoptee placed by the Louise Wise Adoption Agency. This agency, under the guidance of a prominent psychiatrist, decided to place twins in separate homes. Some of these twin children were part of a controversial child development study that was hidden from them and their parents. Next, recent and current twin research on heart transplantation, distinguishing monozygotic co-twins, twin conceptions via oocyte donation and factors affecting craniofacial traits are summarized. The article concludes with highlights on twins in the media, specifically, a triplet delivery in the United Kingdom, self-concept and consciousness in conjoined twins, Colombian twin trainers, skin grafting to save an identical co-twin, lack of physical flaws in Dolly the cloned sheep, possible opposite-sex conjoined twins, and the passing of the remaining twin from the world's longest separated pair.

scholarly journals Twins and Transsexualism: An Update and a Preview; Research Reviews: Conjoined Twins, Angiographic Lesions, Single Versus Double Embryo Transfer; Headlines: School Placement Legislation, Junior Taekwondo Olympics, Prosthetic Ears, Murder Victim

2007 ◽  
Vol 10 (6) ◽  
pp. 894-897 ◽  
Author(s):  
Nancy L. Segal
Keyword(s):  
Gender Identity ◽  
Embryo Transfer ◽  
Twin Study ◽  
Conjoined Twins ◽  
Behavioral Difference ◽  
New Information ◽  
School Placement ◽  
Mz Twins ◽  
Single Versus ◽  
Double Embryo Transfer

AbstractIn recent years, there has been growing appreciation for the complexity of gender identity. Focusing on monozygotic (MZ) twins discordant for transsexualism can offer clues to events that may trigger this behavioral difference, offering new information about critical underlying factors. An update of twin research in this area is provided, together with a preview of a compelling new film, ‘Red Without Blue.’ Next, twin study findings on the topics of conjoined twinning, angiographic lesions and embryo transfer are provided. This is followed by a survey of newsworthy twins and twin-related events.

scholarly journals Switched-at-Birth Twins in the Canary Islands: Revisited / Research Reports: Parkinson's Disease Discordance, Assisted Reproductive Technology and Neonatal Surgery, Double Embryo Transfer in a Cynomolgus Monkey, Mathematical Analysis of a Twin Convention Conundrum / Media Highlights: Twin Inventors, Basketball Duo, Two Comedians, Paired Designers, Two Musicians, Two Comedians, Twins’ Birth Interval

2013 ◽  
Vol 16 (4) ◽  
pp. 916-921 ◽  
Author(s):  
Nancy L. Segal
Keyword(s):  
Parkinson’S Disease ◽  
New York ◽  
Parkinson's Disease ◽  
Embryo Transfer ◽  
Cynomolgus Monkey ◽  
Human Genetics ◽  
Neonatal Surgery ◽  
Twin Research ◽  
True Story ◽  
Double Embryo Transfer

Switched-at-birth twins from Las Palmas, Gran Canaria in Spain drew international attention in May 2008 following news reports of their unexpected reunion. I visited Las Palmas in September 2009 to research this case and presented the findings in Segal and Blandón-Gitlin (Twin Research and Human Genetics, Vol. 13, 2010, pp. 115–119) and in a book, Someone Else's Twin: The True Story of Babies Switched at Birth (Segal, Prometheus Books, Amherst, New York, 2011). I traveled again to Las Palmas in November 2012 to meet with the twins, their families, and their attorneys and have updated my findings in this article. Next, new twin research on Parkinson's disease discordance, neonatal surgery, double embryo transfer in a cynomolgus monkey, and a convention conundrum are presented. Media highlights concerning twin inventors, basketball players, rappers, designers, musicians, and birth intervals are also summarized.

02 / Single and double embryo transfer provide similar live birth rates in frozen cycles

2018 ◽  
Author(s):  
Racca Annalisa ◽  
Panagiotis Drakopoulos ◽  
Samuel dos Santos Ribeiro ◽  
Christophe Blockeel
Keyword(s):  
Embryo Transfer ◽  
Live Birth ◽  
Birth Rates ◽  
Live Birth Rates ◽  
Double Embryo Transfer

Comparison of pregnancy rates in favorable prognosis women receiving an elective single or double embryo transfer

2009 ◽  
Vol 92 (3) ◽  
pp. S246-S247
Author(s):  
A.A. Shitta-Bey ◽  
G. Kovalevsky ◽  
S.M. Carney ◽  
M.P. Portman ◽  
L.S. Morrison ◽  
...  
Keyword(s):  
Embryo Transfer ◽  
Pregnancy Rates ◽  
Favorable Prognosis ◽  
Double Embryo Transfer

Prospective evaluation of simple morphological criteria for embryo selection in double embryo transfer cycles

1995 ◽  
Vol 10 (11) ◽  
pp. 2999-3003 ◽  
Author(s):  
Hideya Kodama ◽  
Jun Fukuda ◽  
Hiroko Karube ◽  
Toshihiko Matsui ◽  
Yasushi Shimizu ◽  
...  
Keyword(s):  
Embryo Transfer ◽  
Embryo Selection ◽  
Prospective Evaluation ◽  
Morphological Criteria ◽  
Double Embryo Transfer
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