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https://www.readbyqxmd.com/read/28441456/genome-wide-association-study-of-facial-morphology-reveals-novel-associations-with-frem1-and-park2
#1
Myoung Keun Lee, John R Shaffer, Elizabeth J Leslie, Ekaterina Orlova, Jenna C Carlson, Eleanor Feingold, Mary L Marazita, Seth M Weinberg
Several studies have now shown evidence of association between common genetic variants and quantitative facial traits in humans. The reported associations generally involve simple univariate measures and likely represent only a small fraction of the genetic loci influencing facial morphology. In this study, we applied factor analysis to a set of 276 facial linear distances derived from 3D facial surface images of 2187 unrelated individuals of European ancestry. We retained 23 facial factors, which we then tested for genetic associations using a genome-wide panel of 10,677,593 single nucleotide polymorphisms (SNPs)...
2017: PloS One
https://www.readbyqxmd.com/read/28441416/ethanol-itself-is-a-holoprosencephaly-inducing-teratogen
#2
Mingi Hong, Robert S Krauss
Ethanol is a teratogen, inducing a variety of structural defects in developing humans and animals that are exposed in utero. Mechanisms of ethanol teratogenicity in specific defects are not well understood. Oxidative metabolism of ethanol by alcohol dehydrogenase or cytochrome P450 2E1 has been implicated in some of ethanol's teratogenic effects, either via production of acetaldehyde or competitive inhibition of retinoic acid synthesis. Generalized oxidative stress in response to ethanol may also play a role in its teratogenicity...
2017: PloS One
https://www.readbyqxmd.com/read/28439158/trigemino-cardiac-reflex-a-phenomenon-neglected-in-maxillofacial-surgery
#3
Udupikrishna M Joshi, Ashwini Munnangi, Kundan Shah, Satishkumar G Patil, Nitin Thakur
BACKGROUND: Trigemino-cardiac reflex is a physiologic response of the body to pressure effects in the region of distribution of the trigeminal nerve. Oral and maxillofacial surgical procedures can induce the development of this reflex, which leads to significant changes in the heart rate and sinus rhythms. This study intends to evaluate the effects of this reflex in patients with facial fractures and its subsequent management. PATIENTS AND METHODS: A total of thirty-seven patients with facial fractures who reported to the Department of Oral and Maxillofacial Surgery at Basaveswar Teaching and General Hospital, Gulbarga during a period from July 2015-March 2016 were considered for the study...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28436605/digeorge-like-syndrome-in-a-child-with-a-3p12-3-deletion-involving-mir4273-gene-born-to-a-mother-with-gestational-diabetes-mellitus
#4
Emilia Cirillo, Giuliana Giardino, Vera Gallo, Giovanni Galasso, Roberta Romano, Roberta D'Assante, Giulia Scalia, Luigi Del Vecchio, Lucio Nitsch, Rita Genesio, Claudio Pignata
Chromosome 22q11.2 deletion is the most common chromosomal alteration associated with DiGeorge syndrome (DGS), even though this is not the only underlying cause of DGS. In rare patients, mutations in a single gene, TBX1, have been described resulting in a DGS phenotype. Recently, it has been reported that at least part of the TBX1 mutant phenotype is due to excessive bone morphogenetic proteins (BMP) signaling. Evidence suggests that miRNA may modulate the expression of critical T-box transcriptional regulators during midface development and Bmp-signaling...
April 24, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28432762/microvascular-replantation-of-head-and-neck-amputated-parts-a-systematic-review
#5
REVIEW
Johnny I Efanov, Ixchel J Montoya, Ke N Huang, Charles Guertin, Patrick G Harris, Joseph Bou-Merhi, Alain M Danino
BACKGROUND: As opposed to upper and lower extremity amputations representing a considerable volume of admissions, the prowess of microsurgeons is seldom solicited in complex cases of head and neck replantation. Our aim was to determine the rate of successful replantation of craniofacial parts in a systematic review of the literature. METHODS: We performed a systematic review of English literature using PubMed/MEDLINE for every replantation of a head and neck parts...
April 22, 2017: Microsurgery
https://www.readbyqxmd.com/read/28430736/vertical-lifting-a-new-optimal-thread-lifting-technique-for-asians
#6
Seung Hoon Kang, Eun Jung Byun, Hei Sung Kim
BACKGROUND: With the evolution of facial rejuvenation methods, thread lifts have gained popularity among patients who seek cosmetic improvement. Absorbable wedge-shaped polydioxanone (PDO) sutures are currently available, and they are extremely popular in the aesthetic clinics in Korea. In case of midface and mandibular jowl lift, threads are most often inserted in an oblique manner with vectors of rejuvenation directed toward the temple. However, specific characteristics of skeletal anatomy should be considered when deciding which technique to use in Asians...
April 19, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28429855/coincidence-of-mandibular-fractures-with-isolated-posterior-maxillary-sinus-fractures
#7
Sebastian Blatt, Roman Rahimi-Nedjat, Keyvan Sagheb, Lisa Piechowiak, Christian Walter, Dan Brüllmann
BACKGROUND/AIM: There is no data available to show whether there is a relationship between mandibular fractures and isolated fractures of the posterior and/or latera wals of the maxillary sinus. The aim of this study was to determine whether there is a coincidence between these fracture patterns. METHODS: Four hundred large volume cone beam computed tomography scans (CBCT) of patients with a fracture of the mandible between 2008 and 2013 were analyzed retrospectively...
April 21, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28429472/transoral-orthodromic-temporalis-muscle-transfer-technique-for-the-paralysed-midface-our-learning-curve-experience-from-the-first-10-cases
#8
Lepa Lazarova, Tristram H Lesser, Samuel C Leong
Sir Harold Gillies first described rotating a band of temporalis muscle over the zygoma where the muscle sling was augmented with strips of fascia lata to rehabilitate facial paralysis (1) . McLaughlin later modified this technique in the 1950s without inversion of the temporal muscle but in an orthodromic manner thus avoiding the soft tissue fullness over the zygomatic arch area and depression of the donor site (2) . Although several refinements of this technique have been described, all required skin incisions on the face until a transoral technique was described recently by this clinical group (3) ...
April 21, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28419841/buffered-1-lidocaine-with-epinephrine-can-be-as-effective-as-nonbuffered-2-lidocaine-with-epinephrine-for-maxillary-field-block
#9
James A Phero, Victor T Warren, Anson G Fisher, Eric M Rivera, Pooja T Saha, Glenn Reside, Ceib Phillips, Raymond P White
PURPOSE: Buffering local anesthetics with epinephrine (Epi) offers clinicians options not often considered. This study assessed outcomes for pulpal anesthesia, pain on injection, and time to midface numbness for buffered 1% lidocaine with 1:100,000 Epi versus nonbuffered 2% lidocaine with 1:100,000 Epi. MATERIALS AND METHODS: In this trial with a randomized, crossover design, buffered 1% lidocaine was compared with nonbuffered 2% lidocaine. Participants were adult volunteers who served as their own controls...
March 25, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28397327/comparison-of-self-reported-signs-of-facial-ageing-among-caucasian-women-in-australia-versus-those-in-the-usa-the-uk-and-canada
#10
Greg J Goodman, Katherine S Armour, Julia K Kolodziejczyk, Samantha Santangelo, Conor J Gallagher
BACKGROUND/OBJECTIVES: Australians are more exposed to higher solar UV radiation levels that accelerate signs of facial ageing than individuals who live in temperate northern countries. The severity and course of self-reported facial ageing among fair-skinned Australian women were compared with those living in Canada, the UK and the USA. METHODS: Women voluntarily recruited into a proprietary opt-in survey panel completed an internet-based questionnaire about their facial ageing...
April 10, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28392030/an-unusual-exit-wound-as-a-result-of-a-shotgun-suicide-to-the-head
#11
S N Kunz
The location of a gunshot entrance wound as well as the wound path trajectory are the main findings that help to determine the position from which a weapon was fired and thus distinguish firearm suicides from homicides and accidents. We present a case of a 28-year old man, who was found dead in his car. Because of an unusual position of the firearm, which was clamped into the steering wheel, and an unclear entrance/exit wound, an autopsy was performed. The deceased showed typical signs of a contact shotgun wound to the head with an entrance wound in the right temporal region and an exit wound in the midface...
March 30, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28376635/intraosseous-venous-malformations-of-the-zygoma-report-of-4-cases-and-literature-review
#12
Xiuling Huang, Jingang An, Yi Zhang, Zhigang Cai
OBJECTIVES: As intraosseous venous malformations (IVMs) of the zygoma are very rare and clinical features are not typical, a correct preoperative diagnosis may be difficult to make. This study presents 4 cases of IVM of the zygoma and gives a review of their clinical manifestations, radiographic features, preoperative diagnosis, and differentials. METHODS: The report of 4 cases was performed with an average 6-year follow-up. Medical records including clinical, radiographic, and histopathological information were reviewed...
June 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28367260/a-single-blind-split-face-randomized-pilot-study-comparing-the-effects-of-intradermal-and-intramuscular-injection-of-two-commercially-available-botulinum-toxin-a-formulas-to-reduce-signs-of-facial-aging
#13
Priya Sapra, Shantel Demay, Sheetal Sapra, Julie Khanna, Kelli Mraud, Jennifer Bonadonna
Objective: To examine the effectiveness of intradermal botulinum toxin type A injection in improving skin texture and midface lift while reducing pore size and sebum production, as well as investigate the differences in effectiveness between onabotulinumtoxinA and abobotulinumtoxinA using intradermal and intramuscular injection methods. Design: A 16-week, single-blind, split-face, randomized study. Each patient served as their own control, receiving onabotulinumtoxinA and abobotulinumtoxinA randomized to either the left or right side of the face...
February 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28353305/anatomical-changes-in-the-east-asian-midface-skeleton-with-aging
#14
Ki Hyuk Sung, Anna Jeon, Sang Duck Kim, U-Young Lee, Je-Hun Lee, Seung-Ho Han, Hong-Jin Sui
PURPOSE: Understanding the aging process of the midface skeleton is considered crucial for correct facial rejuvenation. However, the canine fossa, an important morphological feature of the midface skeleton, has not yet been observed in connection with aging, despite the fact that it is the most main part of the maxillary bone. Here, the authors focus on the depression of the canine fossa to evaluate the Asian midface skeleton. METHODS: Computed tomography (CT) scans of the facial skeleton of 114 Koreans (59 males and 55 females) were reconstructed to three-dimensional (3-D) images using a 3-D analysis software program...
March 29, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28348991/myths-and-misconceptions-in-general-public-toward-ocular-complications-followed-by-the-removal-of-upper-teeth
#15
Ujwala Rohan Newadkar, Lalit Chaudhari, Yogita Khalekar
INTRODUCTION: The upper jaw forms the floor of the maxillary sinus and the upper teeth are continuous with the whole midface and cranium, therefore while treating these teeth, it is important for the practitioner to consider the possibility of ocular complications. Ocular disturbances such as blurring of vision, mydriasis, ptosis, diplopia, enophthalmos, miosis, and blindness are rare complications due to intraoral local anesthesia. So far at present, the general population is having myths and misconceptions regarding the extraction of teeth and vision loss; hence, we evaluated the same...
October 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28338588/-vertical-midface-lifting-with-periorbital-anchoring-in-the-management-of-lower-eyelid-retraction-a-ten-year-clinical-retrospective-study
#16
Michele Pascali, Chiara Botti, Valerio Cervelli, Giovanni Botti
BACKGROUND: Lower eyelid retraction can be the unfortunate result of aesthetic surgery, trauma, disease or simply aging processes. The purpose of this article is to assess whether midface lifting based on purely vertical repositioning constitutes an effective procedure for its correction. METHODS: A retrospective study was carried out on 199 patients (311 eyelids) operated on between January 2004 and January 2014. The various causes of eyelid retraction in this population comprised cosmetic blepharoplasty (56...
March 3, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28338586/towards-microsurgical-correction-of-cleft-lip-ex-utero-via-restoration-of-craniofacial-developmental-programs
#17
Xue Dong, Wilmina N Landford, James Hart, Maurizio Risolino, Omer Kaymakcalan, Julia Jin, Yoshiko Toyoda, Elisabetta Ferretti, Licia Selleri, Jason A Spector
BACKGROUND: Cleft Lip with or without Palate (CL/P) is present in approximately 1 in 500-700 live births, representing the most common congenital craniofacial anomaly. Previously, we developed a unique murine model with compound Pbx deficiency that exhibits fully penetrant CL/P. To investigate the possibility of tissue repair at an early gestational stage, we designed a minimally invasive surgical approach suitable for intrauterine repair using Wnt9b-soaked collagen microspheres to restore craniofacial developmental programs for cleft correction...
March 3, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28329435/face-shield-design-against-blast-induced-head-injuries
#18
Long Bin Tan, Kwong Ming Tse, Yuan Hong Tan, Mohamad Ali Bin Sapingi, Vincent Beng Chye Tan, Heow Pueh Lee
Blast-induced traumatic brain injury (TBI) has been on the rise in recent years due to the increasing use of improvised explosive devices (IEDs) in conflict zones. Our study investigates the response of a helmeted human head subjected to a blast of 1 atm peak overpressure, for cases with and without a standard polycarbonate (PC) face shield and for face shields comprising of composite PC and aerogel materials and with lateral edge extension. The novel introduction of aerogel into the laminate face shield is explored and its wave-structure interaction mechanics and performance in blast mitigation is analysed...
March 22, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28317252/oculo-facio-cardio-dental-syndrome-with-craniosynostosis-temporal-hypertrichosis-and-deafness
#19
James J O'Byrne, Eoghan Laffan, Dylan J Murray, William Reardon
We report the case of a 7-month-old girl with atypical oculo-facio-cardio-dental syndrome (OFCD). A novel de novo pathogenic mutation in the BCL6 interacting co-repressor gene (BCOR) (c.4540C>T; p.Arg1514*), was identified on the X chromosome. This case expands the phenotype of OFCD as it is the first report of a case presenting with craniosynostois, temporal hypertrichosis, supraorbital grooving, and underdevelopment of the midface.
March 20, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28291860/virtual-preoperative-planning-and-intraoperative-navigation-in-facial-prosthetic-reconstruction-a-technical-note
#20
Suzanne Verma, Marianela Gonzalez, Sterling R Schow, R Gilbert Triplett
This technical protocol outlines the use of computer-assisted image-guided technology for the preoperative planning and intraoperative procedures involved in implant-retained facial prosthetic treatment. A contributing factor for a successful prosthetic restoration is accurate preoperative planning to identify prosthetically driven implant locations that maximize bone contact and enhance cosmetic outcomes. Navigational systems virtually transfer precise digital planning into the operative field for placing implants to support prosthetic restorations...
March 2017: International Journal of Oral & Maxillofacial Implants
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