keyword
MENU ▼
Read by QxMD icon Read
search

Embryology

keyword
https://www.readbyqxmd.com/read/29346594/the-heart-in-embryology
#1
Narges Tajik, Arman Zargaran, Mohammad Kermani-Alghoraishi
No abstract text is available yet for this article.
January 14, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29345006/embryology-of-the-craniocervical-junction-and-posterior-cranial-fossa-part-i-development-of-the-upper-vertebrae-and-skull
#2
Mohammadali M Shoja, Rebecca Ramdhan, Chad J Jensen, Joshua Chern, W Jerry Oakes, R Shane Tubbs
Although the embryology of the posterior cranial fossa can have life altering effects on a patient, a comprehensive review on this topic is difficult to find in the peer-reviewed medical literature. Therefore, this review paper, using standard search engines, seemed timely. The embryology of the posterior cranial fossa is complex and relies on a unique timing of various neurovascular and bony elements. Derailment of these developmental processes can lead to a wide range of malformations such as the Chiari malformations...
January 18, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29344994/embryology-of-the-craniocervical-junction-and-posterior-cranial-fossa-part-ii-embryogenesis-of-the-hindbrain
#3
Mohammadali M Shoja, Chad J Jensen, Rebecca Ramdhan, Joshua Chern, W Jerry Oakes, R Shane Tubbs
Although pathology of the hindbrain and its derivatives can have life altering effects on a patient, a comprehensive review on its embryology is difficult to find in the peer-reviewed medical literature. Therefore, this review paper, using standard search engines, seemed timely. The embryology of the hindbrain is complex and relies on a unique timing of various neurovascular and bony elements. Derailment of these developmental processes can lead to a wide range of malformations such as the Chiari malformations...
January 18, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29343922/periureteral-inferior-vena-caval-venous-ring-presenting-as-urinary-obstruction
#4
Suprava Naik, Arashdeep Singh, Sudipta Mohakud, Nerbadyswari Deep
The embryological development of the inferior vena cava (IVC) is complex, and thus the vena cava may undergo a large number of congenital anomalies. Periureteric venous ring is a rare developmental anomaly of IVC where the right ureter passes through a slit-like opening in a partially duplicated infrarenal IVC, resulting in dilatation of upper urinary tract. Split-bolus multidetector computed tomography technique is useful in detecting such vascular anomaly causing ureteric obstruction as it can clearly show the vascular and ureteric phase in a single acquisition...
January 2018: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/29338279/the-chondrocoracoideus-muscle-a-rare-anatomical-variant-of-the-pectoral-area
#5
Dionysios Venieratos, Alexandros Samolis, Maria Piagkou, Stergios Douvetzemis, Alexandrina Kourotzoglou, Kontantinos Natsis
OBJECTIVE: The study adds important information regarding the descriptive anatomy of a very rarely reported unilateral chondrocoracoideus muscle (of Wood). Additionally it highlights the concomitant muscular and neural alterations. CASE REPORT: The current case presents the occurrence of a chondrocoracoideus muscle situated left-sided, as an extension of the abdominal portion of the pectoralis major muscle (PM). The chondrocoracoideus coexisted with a contralateral atypical PM, partially blended with the clavicular fibers of the deltoid muscle...
November 2017: Acta Medica Academica
https://www.readbyqxmd.com/read/29338139/occurrence-of-ovarian-follicular-dominance-during-stimulation-for-ivm-impacts-usable-blastocyst-yield
#6
Sergio Romero, Ricardo Pella, Francisco Escudero, Ygor Pérez, Mario García, Patricia Orihuela
OBJECTIVE: To evaluate the influence of ovarian follicular dominance on the outcome of oocyte in-vitro maturation. METHODS: This retrospective cohort study included 21 patients with polycystic ovaries or polycystic ovary syndrome (Rotterdam criteria, 2004) subjected to 24 in-vitro maturation (IVM) cycles between October 2015 and January 2017. Patients undergoing IVM received minimal gonadotropin stimulation starting on day 2 or 3 of the cycle; ovum pick-up typically occurred on days 6 to 8...
January 17, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29337984/anteroposterior-axis-patterning-by-early-canonical-wnt-signaling-during-hemichordate-development
#7
Sébastien Darras, Jens H Fritzenwanker, Kevin R Uhlinger, Ellyn Farrelly, Ariel M Pani, Imogen A Hurley, Rachael P Norris, Michelle Osovitz, Mark Terasaki, Mike Wu, Jochanan Aronowicz, Marc Kirschner, John C Gerhart, Christopher J Lowe
The Wnt family of secreted proteins has been proposed to play a conserved role in early specification of the bilaterian anteroposterior (A/P) axis. This hypothesis is based predominantly on data from vertebrate embryogenesis as well as planarian regeneration and homeostasis, indicating that canonical Wnt (cWnt) signaling endows cells with positional information along the A/P axis. Outside of these phyla, there is strong support for a conserved role of cWnt signaling in the repression of anterior fates, but little comparative support for a conserved role in promotion of posterior fates...
January 16, 2018: PLoS Biology
https://www.readbyqxmd.com/read/29330274/cerebrofacial-arteriovenous-metameric-syndrome-with-hypopituitarism-a-rare-association
#8
Justin Christopher Ng, Chinthaka Appuhamy, Wickly Lee
Case of cerebrofacial arteriovenous metameric syndrome (CAMS) in a 9-year-old boy is described with arteriovenous malformation simultaneously involving the brain and face, with characteristic CAMS type 1 and 2 involvement. This patient demonstrates the wide spectrum of clinical manifestations of CAMS, and in this particular case, the patient exhibits features of hypopituitarism-an association that was not previously described in the literature to our knowledge. Awareness of the underlying embryological abnormality and recognition of resultant clinical and radiological presentations are paramount for diagnosis and treatment...
January 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29326429/responsible-innovation-in-human-germline-gene-editing-background-document-to-the-recommendations-of-eshg-and-eshre
#9
Guido De Wert, Björn Heindryckx, Guido Pennings, Angus Clarke, Ursula Eichenlaub-Ritter, Carla G van El, Francesca Forzano, Mariëtte Goddijn, Heidi C Howard, Dragica Radojkovic, Emmanuelle Rial-Sebbag, Wybo Dondorp, Basil C Tarlatzis, Martina C Cornel
Technological developments in gene editing raise high expectations for clinical applications, including editing of the germline. The European Society of Human Reproduction and Embryology (ESHRE) and the European Society of Human Genetics (ESHG) together developed a Background document and Recommendations to inform and stimulate ongoing societal debates. This document provides the background to the Recommendations. Germline gene editing is currently not allowed in many countries. This makes clinical applications in these countries impossible now, even if germline gene editing would become safe and effective...
January 12, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29326428/human-germline-gene-editing-recommendations-of-eshg-and-eshre
#10
Guido de Wert, Guido Pennings, Angus Clarke, Ursula Eichenlaub-Ritter, Carla G van El, Francesca Forzano, Mariëtte Goddijn, Björn Heindryckx, Heidi C Howard, Dragica Radojkovic, Emmanuelle Rial-Sebbag, Basil C Tarlatzis, Martina C Cornel
Technological developments in gene editing raise high expectations for clinical applications, first of all for somatic gene editing but in theory also for germline gene editing (GLGE). GLGE is currently not allowed in many countries. This makes clinical applications in these countries impossible now, even if GLGE would become safe and effective. What were the arguments behind this legislation, and are they still convincing? If a technique can help to avoid serious genetic disorders, in a safe and effective way, would this be a reason to reconsider earlier standpoints? The European Society of Human Reproduction and Embryology (ESHRE) and the European Society of Human Genetics (ESHG) together developed a Background document and Recommendations to inform and stimulate ongoing societal debates...
January 12, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29318938/pitt-hopkins-syndrome-a-review-of-current-literature-clinical-approach-and-23-patient-case-series
#11
Kimberly Goodspeed, Cassandra Newsom, Mary Ann Morris, Craig Powell, Patricia Evans, Sailaja Golla
Pitt-Hopkins syndrome (PTHS) is a rare, genetic disorder caused by a molecular variant of TCF4 which is involved in embryologic neuronal differentiation. PTHS is characterized by syndromic facies, psychomotor delay, and intellectual disability. Other associated features include early-onset myopia, seizures, constipation, and hyperventilation-apneic spells. Many also meet criteria for autism spectrum disorder. Here the authors present a series of 23 PTHS patients with molecularly confirmed TCF4 variants and describe 3 unique individuals...
January 1, 2018: Journal of Child Neurology
https://www.readbyqxmd.com/read/29304994/the-trileaflet-mitral-valve
#12
REVIEW
Jason Chui, Robert H Anderson, Roberto M Lang, Wendy Tsang
With the advent of 3-dimensional echocardiography, visualization of the mitral valve has greatly improved. Recently, there has been an increase in reporting of a distinct entity called the "trileaflet mitral valve" using 3-dimensional echocardiography. It is controversial whether this is a new entity or an improved visualization of isolated mitral valve clefts or trifoliate left atrioventricular valve in the setting of an atrioventricular septal defect (AVSD) with intact septum. We present a case of a trifoliate valve, interpreting our findings based on a systematic review of previous publication on trileaflet mitral valves, isolated clefts in the mural (posterior) leaflet of the mitral valve, and trifoliate left atrioventricular valves with AVSD and intact septal structures...
November 28, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29300975/new-application-of-dydrogesterone-as-a-part-of-a-progestin-primed-ovarian-stimulation-protocol-for-ivf-a-randomized-controlled-trial-including-516-first-ivf-icsi-cycles
#13
Sha Yu, Hui Long, Hannah Ya-Ning Chang, Yali Liu, Hongyuan Gao, Jing Zhu, Xinxin Quan, Qifeng Lyu, Yanping Kuang, Ai Ai
STUDY QUESTION: Can dydrogesterone (DYG) be used as an alternative progestin in a progesterone primed ovarian stimulation (PPOS) protocol? SUMMARY ANSWER: DYG can be used as an appropriate alternative progestin in a PPOS protocol. WHAT IS KNOWN ALREADY: PPOS is a new ovarian stimulation regimen based on a freeze-all strategy that uses progestin as an alternative to a GnRH analog for suppressing a premature LH surge during the follicular phase...
December 29, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29291277/ectopic-thymic-cyst-of-the-subglottis-considerations-for-diagnosis-and-management
#14
Iram Ahmad, Patricia Kirby, Bryan Liming
OBJECTIVES: To share the diagnostic and management challenges created by an extremely rare airway lesion-the subglottic ectopic thymic cyst. STUDY DESIGN: Case report and literature review. METHODS: We review the presentation, management, and clinical course of an infant who presented with a subglottic mass that was histologically confirmed as a thymic cyst. A brief literature review supplements the case presentation Results: We present the third described case of an ectopic thymic cyst presenting as a subglottic mass...
December 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29287852/low-set-ears-and-associated-anomalies-in-human-foetuses
#15
Alfredo Nuñez-Castruita, Norberto López-Serna
OBJECTIVES: To determine the prevalence of low-set ears (LSE) in a group of human foetuses, to analyse the associated anomalies, and to review the development mechanisms possibly involved. METHODS: A total of 1759 human foetuses from spontaneous abortion were evaluated. Foetuses were obtained from the Foetuses and Embryos Collection of the Embryology Department of the Faculty of Medicine of the Autonomous University of Nuevo León. The Ethics Committee gave its approval for this study (EH-230-16)...
January 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29285061/wnt6-influences-the-viability-of-mouse-embryonic-palatal-mesenchymal-cells-via-the-%C3%AE-catenin-pathway
#16
Zheng Jiang, Lin Pan, Xiaoling Chen, Zhiqun Chen, Dongwei Xu
The embryological stages of palatal shelf elongation and elevation, mainly induced by the proliferation and extracellular matrix secretion of embryonic palatal mesenchymal (MEPM) cells, are essential for normal palatal development. Wingless-related MMTV integration site gene family (Wnt) signaling pathways serve key roles in craniofacial development and palate formation. Recent studies have indicated that Wnt6 participates in embryonic development of the palate, though its exact role in palate development remains unclear...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29284160/developmental-biology-the-stem-cell-of-biological-disciplines
#17
Scott F Gilbert
Developmental biology (including embryology) is proposed as "the stem cell of biological disciplines." Genetics, cell biology, oncology, immunology, evolutionary mechanisms, neurobiology, and systems biology each has its ancestry in developmental biology. Moreover, developmental biology continues to roll on, budding off more disciplines, while retaining its own identity. While its descendant disciplines differentiate into sciences with a restricted set of paradigms, examples, and techniques, developmental biology remains vigorous, pluripotent, and relatively undifferentiated...
December 2017: PLoS Biology
https://www.readbyqxmd.com/read/29280877/choanal-atresia-and-craniosynostosis-development-and-disease
#18
Kate M Lesciotto, Yann Heuzé, Ethylin Wang Jabs, Joseph M Bernstein, Joan T Richtsmeier
A number of textbooks, review articles, and case reports highlight the potential comorbidity of choanal atresia in craniosynostosis patients. However, the lack of a precise definition of choanal atresia within the current craniosynostosis literature and widely varying methods of detection and diagnosis have produced uncertainty regarding the true coincidence of these conditions. The authors review the anatomy and embryologic basis of the human choanae, provide an overview of choanal atresia, and analyze the available literature that links choanal atresia and craniosynostosis...
January 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29279945/dysplasia-and-overgrowth-magnetic-resonance-imaging-of-pediatric-brain-abnormalities-secondary-to-alterations-in-the-mechanistic-target-of-rapamycin-pathway
#19
REVIEW
Shai Shrot, Misun Hwang, Carl E Stafstrom, Thierry A G M Huisman, Bruno P Soares
The current classification of malformations of cortical development is based on the type of disrupted embryological process (cell proliferation, migration, or cortical organization/post-migrational development) and the resulting morphological anomalous pattern of findings. An ideal classification would include knowledge of biological pathways. It has recently been demonstrated that alterations affecting the mechanistic target of rapamycin (mTOR) signaling pathway result in diverse abnormalities such as dysplastic megalencephaly, hemimegalencephaly, ganglioglioma, dysplastic cerebellar gangliocytoma, focal cortical dysplasia type IIb, and brain lesions associated with tuberous sclerosis...
December 26, 2017: Neuroradiology
https://www.readbyqxmd.com/read/29278270/historical-review-of-the-discovery-of-cadherin-in-memory-of-tokindo-okada
#20
REVIEW
Masatoshi Takeichi
The cadherin family of cell-cell adhesion molecules plays a pivotal role in animal tissue formation. Discovery of this molecular family can be traced back to some unexpected observations of strange cell behavior that were made around 1970 in the Kyoto University laboratory of Tokindo Okada, and then in the Department of Embryology at the Carnegie Institution of Washington (currently the Carnegie Institution for Science). This article looks back on these discoveries, and recalls how these observations led to the identification of important cell-cell adhesion molecules known as cadherins...
December 26, 2017: Development, Growth & Differentiation
keyword
keyword
49363
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"