Results 41 to 50 of about 2,702 (168)

A comprehensive embryonic staging series of the turtle Trachemys scripta

Developmental Dynamics, Volume 255, Issue 3, Page 260-320, March 2026.
Abstract Background Turtles hold a unique place in vertebrate evolutionary history, making them critical assets in embryology research. Yet, they remain understudied as potential model organisms in the field. Here, to support experimental manipulations with turtle embryos, we have created a complete normal table of development for comprehensive ...
Christina M. Noravian, Perla G. Rand, Amira Mahomed, Annie Rickard, Oscar D. Juvera, Maria Elena de Bellard, Max Ezin   +6 more
wiley   +1 more source

Radiologic Imaging in Meckel Diverticulum Complications

Journal of Medical Ultrasound, 2015
In 1809, Johann Friedrich Meckel the Younger described the most common congenital small bowel anomaly, which was named after him; however, the radiologic manifestations and interventional guidelines related to this entity are still limited to a few large-
Erin Leslee Dames, Ehab Shaban Mahmoud Hamouda   +1 more
doaj   +1 more source

Small bowel segment with Meckel’s diverticulum volvulus related to short mesodiverticular band: a case report

Journal of Medical Case Reports, 2023
Background Meckel’s diverticulum is a remnant of the omphalomesenteric duct and occurs in only about 2% of people. Mesodiverticular band is the congenital remnant of the vitelline artery and is an even less often occurring phenomenon.
Michał Zieliński, Patryk Kaczor, Grzegorz Jarczyk, Marek Jackowski   +3 more
doaj   +1 more source

Clinicopathological profile of paediatric vitellointestinal duct anomalies

Asian Journal of Medical Sciences, 2021
Background: Vitellointestinal duct (VID) or Omphalomesenteric duct (OMD) is the embryonic connection between the yolk sac and the primitive midgut. Anomalies result from failure of the involution of the VID. Normally, it obliterates between the fifth and
Othuluru Hema Radhika Krishna , Srinivas Sriampur , Gaddam Janardhan Vani Padmaja , Ramesh Reddy Kota   +3 more
doaj   +1 more source

Immunostaining of P450c17, Aromatase and Oestrogen Receptor Alpha in Germ and Somatic Cells During Gonadal Development in Greater Rhea

Anatomia, Histologia, Embryologia, Volume 55, Issue 2, March 2026.
ABSTRACT The greater rhea (Rhea americana), the largest bird species in South America, has significant economic value due to its meat, eggs, leather, feathers and oil. However, its lack of external sexual dimorphism poses challenges for reproductive management and breeding programmes.
Marilú Cristofoli, Danielle Cristina Calado de Brito, Mayla Magalhães de Oliveira Alcobaça, Flavia Maria Pia Montenegro Donoso, Fabiana Morse Gosson Jorge, Marco Aurélio Schiavo Novaes, Moacir Franco Oliveira, Antônio Chaves de Assis Neto   +7 more
wiley   +1 more source

Synergistic roles of aquaporin 5 and intra‐ and extracellular carbonic anhydrases in promoting CO2 diffusion across the Xenopus oocyte plasma membrane

The Journal of Physiology, Volume 604, Issue 3, Page 1174-1234, 1 February 2026.
Abstract figure legend Fick's law: JCO2=PM*,CO2±hAQP5·([CO2]os±bCA−[CO2]is±hCAII)TransmembraneCO2gradient${J}_{{\mathrm{CO}}_{2}}=\underset{\pm \mathrm{hAQP}5}{\underset{}{{P}_{\mathrm{M}^\ast ,{\mathrm{CO}}_{2}}}}\, \cdot \underset{\mathrm{Transmembrane}\ {\mathrm{CO}}_{2}\ \mathrm{gradient}}{\underset{}{(\underset{\pm \mathrm{bCA}}{\underset ...
Deng‐Ke Wang, Fraser J. Moss, Walter F. Boron   +2 more
wiley   +1 more source

Littre´s hernia: a case presentation

Mexican Journal of Medical Research ICSA
We report a case of Littre’s hernia in a 64-year old woman, which is a very uncommon condition, consists on an hernia whose content corresponds to a remnant of the omphalomesenteric duct, called Meckel’s diverticulum, that results from incomplete ...
Juan Roberto-Santamaría, María J. Rueda-Medécigo, Mariana P. Carmona Olivares, Alberto Navarrete-Peón   +3 more
doaj   +1 more source

Torsion and inflammation of Meckel's diverticulum: Rare cause of acute abdominal pain

Journal of Pediatric Surgery Case Reports, 2017
Meckel's diverticulum is a remnant of the embryologic vitelline duct. It was named after its anatomical and embryological description, in the early 19th century, by Johann Meckel.
Sofia Morão, Maria Knoblich, Fátima Alves, Rui Alves, João Pascoal   +4 more
doaj   +1 more source

The Early Development of the Blue‐Eye Cichlid, Cryptoheros spilurus (Cichliformes: Cichlidae)

Evolution &Development, Volume 27, Issue 4, December 2025.
We document the early development of Cryptoheros spilurus, highlighting rapid cranial differentiation, sensory organ formation, and fin development. Ontogenetic allometry and ultrastructural traits reveal functional adaptations for early foraging and locomotion, offering insights into ecological success and the developmental basis of cichlid ...
Rubén Alonso Contreras‐Tapia, Jairo Arroyave, Gabriela Garza‐Mouriño, María Elena Castellanos‐Páez, Marcela Ivonne Benítez‐Díaz Mirón, Wilfredo A. Matamoros   +5 more
wiley   +1 more source

A Population‐Based Study of Limb Body Wall Complex With Proposed Features for Prenatal Diagnosis

American Journal of Medical Genetics Part A, Volume 197, Issue 11, November 2025.
ABSTRACT Limb body wall complex (LBWC) is a lethal condition comprising major congenital anomalies. Although currently diagnosed in the early prenatal period, historical diagnostic criteria are based on detailed pathological assessments. Prenatal and postnatal findings of LBWC and their phenotypic overlap with body stalk anomaly (BSA) and recurrent ...
Mary Ann Thomas, Susan Crawford, Tanya Bedard   +2 more
wiley   +1 more source