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Morphologie: Bulletin de L'Association des Anatomistes

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https://read.qxmd.com/read/30905592/polyhydroxyalkanoate-phbv-fibers-obtained-by-a-wet-spinning-method-good-in-vitro-cytocompatibility-but-absence-of-in-vivo-biocompatibility-when-used-as-a-bone-graft
#1
C N Degeratu, G Mabilleau, E Aguado, R Mallet, D Chappard, C Cincu, I C Stancu
Polyhydroxyalkanoates (PHAs) are biomaterials widely investigated for tissue-engineering applications. In this regard, we describe a method to prepare fibers of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) by a wet-spinning technique. Polymer fibers were used to test the cytocompatibility of the material in vitro. We have investigated their behavior in vitro in presence of the osteoblast-like (SaOs2) and macrophage (J774.2) cell lines. The PHBV fibers used were 100-200μm in diameter and offered a large surface for cell adhesion, similar to that they encounter when apposed onto a bone trabeculae...
March 21, 2019: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30885456/unexpected-phenotype-in-a-patient-with-two-chromosomal-deletions-involving-6pter-and-22q11
#2
Q Salardaine, V Marquet, S Bourthoumieu, B Dauriat, A Dobrescu, C Yardin
The 6p terminal deletions are rare and usually early diagnosed because of their association with eye and cranio-facial anomalies, particularly as part of Axenfeld-Rieger syndrome in relation with the haploinsufficiency of FOXC1 gene. Deletions in the 22q11 region are frequent, highly correlated with DiGeorge syndrome also named CATCH22, and may be associated with many clinical features of various severities. We report a 31-year-old man with an unbalanced 45,XY,der(6)t(6;22)(p25;q11.2),-22 karyotype leading to monosomies in both 6p25 and 22q11 regions, confirmed by FISH and array-CGH...
March 15, 2019: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30853367/external-and-computed-tomography-analysis-of-a-strophocephalic-lamb
#3
M Lejong, N Vanmuylder, S Louryan
CONTEXT: The Museum of Anatomy and Embryology Louis Deroubaix attached to the Laboratory of Anatomy, Biomecanics and Organogenesis, ULB, Brussels, possesses in its liquid collections a cephalic extremity of a lamb suffering from strophocephaly. The origins have not been determined. The trunk and the limbs are resected. MATERIAL AND METHODS: The piece has been studied and photographed. A volumic computed tomography acquisition has been performed with a Siemens Volume Zoom...
March 7, 2019: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30713002/variations-of-the-6-th-cranial-nerve-nervus-abducens-in-the-petroclival-region-a-microsurgical-study
#4
H O Ipsalali, A C Ciftci, D Kilic, G Sendemir, S Seyhan, I Kaya, G Ortug
The aim of this study is to present the variations of nervus abducens in localization and number as it pierces the clival dura mater. The calvaria of 16 cadaveric heads were removed by making horizontal incisions from Glabella to Inion in both sides of the head. The dura mater was dissected. Cerebrum and cerebellum were taken out by obtuse dissection. Dissections of cavernous sinus were made under the stereomicroscope and the findings were photographed. Out of 16 specimens, one of them was excluded. Fifteen heads were bilaterally analyzed...
January 31, 2019: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30642812/mandibular-incisive-canal-and-lingual-foramina-characterization-by-cone-beam-computed-tomography
#5
S Gilis, B Dhaene, D Dequanter, I Loeb
INTRODUCTION: Many patients have haemorrhagic and neurologic complications after surgery at the symphysis region, while this area between the mental foramina is commonly considered to be risk-free because the presence of vasculo-nervous anastomoses found in the mandibular incisive canal (MIC) and lingual foramina (LF). The purpose of our study was to better analyse these anatomical structures to better identify and preserve them during surgery. PATIENTS AND METHODS: This prospective radio-anatomical study evaluated the presence, morphology and topography of MIC and median LF (MLF) and paramedian LF (PLF) by cone-beam computed tomography according to age, gender and dentition of 50 consecutive patients...
January 11, 2019: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30638803/the-red-kangaroo-pericardium-as-a-material-source-for-the-manufacture-of-percutaneous-heart-valves
#6
S Meng, J Mao, E N Rouse, G Le-Bel, J M Bourget, R R Reed, E Philippe, D How, Z Zhang, L Germain, R Guidoin
BACKGROUND: The kangaroo pericardium might be considered to be a good candidate material for use in the manufacture of the leaflets of percutaneous heart valves based upon the unique lifestyle. The diet consists of herbs, forbs and strubs. The kangaroo pericardium holds an undulated structure of collagen. MATERIAL AND METHOD: A Red Kangaroo was obtained after a traffic fatality and the pericardium was dissected. Four compasses were cut from four different sites: auricular (AUR), atrial (ATR), sternoperitoneal (SPL) and phrenopericardial (PPL)...
January 9, 2019: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30638802/gain-of-exposure-provided-by-extended-incision-in-lateral-rhinotomy-approach-a-cadaveric-study
#7
A Dinnoo, C Vacher, P Herman, B Verillaud
OBJECTIVE: To assess the gain of exposure provided by extensions of the lateral rhinotomy (LR) incision, including subciliary extension, lip-splitting extension, or both (Weber-Fergusson incision), by comparing the surgical field obtained with every incision. The final goal is to better delineate the indications of each approach. MATERIALS AND METHODS: Prospective study on fresh frozen specimens. A LR incision was first performed, and then extended by subciliary and/or lip-splitting incisions...
January 9, 2019: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30598359/multiple-variations-of-collateral-branches-of-the-abdominal-aorta-associated-with-pyelic-duplication-a-case-report
#8
S E D Hounton, C M Lalèyè, S B Adjadohoun, B L Vidégla, A C Agossou, G M Hounnou, O Biaou
PURPOSE: We describe a rare case of anatomical variation of the collaterals of the abdominal aorta associated with a duplication of the pyelic. MATERIAL AND METHOD: A 51-year-old patient in whom an abdominal CT scan was performed as part of the exploration of a cystic left renal mass objectified on ultrasound. RESULTS: A celiomesenteric trunk with two left renal arteries and a duplication of the left pyelon were found. CONCLUSION: The reported case is of interest in the rare association of these anatomical variants...
December 28, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30595337/a-cadaveric-study-of-variations-of-external-iliac-artery-and-its-implication-in-trauma-and-radiology
#9
S B Badagabettu Nayak, A Padur Aithal, N Kumar, D Regunathan, P Shetty, P Alathady Maloor
OBJECTIVES: A severe and potentially lethal complication in pelvic injuries is arterial bleeding commonly involving the iliac arteries. Hence, the objective of our study was to systematically document the morphology and variations of the external iliac artery in human cadaveric pelvises. MATERIALS AND METHODS: Study was conducted on 48 pelvic halves which were obtained by making mid-line saw cuts through formalin embalmed adult human male cadaveric pelvises. The external iliac artery was cleaned, its length and diameter were measured using a scale...
December 27, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30583925/rare-anatomic-variation-giant-unilateral-concha-bullosa-superior
#10
M C Rusu, N Măru, C J Sava, M Săndulescu, D Dincă
The lateral nasal wall attaches the nasal turbinates, which could be, either pneumatized, or paradoxically curved. The turbinate pneumatization-concha bullosausually indicates the pneumatization of the middle turbinate. However, concha bullosasuperior (CBS) is also, although rare, anatomic possibility of variation. We report here a case of unilateral giant septated CBS, which was not, to our knowledge, previously reported. The case was documented in Cone Beam Computed Tomography (CBCT). Subtle pneumatizations of inferior turbinates were found bilateral, as also were the middle conchae bullosae...
December 21, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30579682/confocal-raman-microscopy-in-life-sciences
#11
REVIEW
S Gomes da Costa, A Richter, U Schmidt, S Breuninger, O Hollricher
Microscopy techniques are widely used in life sciences to study cells and tissues. Fluorescence microscopy, for example, is a very common method in many laboratories. While reliable and strong fluorescence signals are a clear advantage of this method, the labelling procedure with fluorescent dyes, the availability of required antibodies or the potentially necessary genetic modifications of the studied organism all introduce potential complications. By contrast, confocal Raman microscopy is a label-free and non-destructive imaging technique...
December 19, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30528305/update-on-the-cellular-and-molecular-aspects-of-cystic-fibrosis-transmembrane-conductance-regulator-cftr-and-male-fertility
#12
REVIEW
M Yefimova, N Bourmeyster, F Becq, A Burel, M-T Lavault, G Jouve, S Veau, C Pimentel, B Jégou, C Ravel
CFTR protein regulates electrolyte and fluid transport in almost all tissues with exocrine function, including male reproductive tract. Mutation of CFTR gene causes cystic fibrosis (CF), which affects the function of several organs, and impairs male fertility. The role of CFTR protein in different compartments of male reproductive tract (testis, epididymis, sperm) as well as an impact of CFTR mutation(s) on male fertility phenotype is discussed in relation with the choice of optimal technique for Assisted Reproductive Techniques (ART) management...
December 4, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30348489/intraosseous-metal-implants-in-orthopedics-a-review
#13
REVIEW
L Rony, R Lancigu, L Hubert
Metal implants are biomaterials widely used in orthopedics. They are both used in osteosynthesis and arthroplasty. Their mechanical properties, biocompatibility and resistance to corrosion make them a widely used option in orthopedics. Alloys are the most commonly used metals in orthopedics. As far as physical traumas are concerned, implants such as screws, plates and/or nails are used for osteosynthesis as they ensure the stability of the fractured area and contribute to bone healing. Prostheses are used in arthroplasty to restore joint function for as long as possible...
December 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30447885/anatomical-study-of-length-and-branching-pattern-of-main-trunk-of-the-left-coronary-artery
#14
O Pereira da Costa Sobrinho, J Dantas de Lucena, R Silva Pessoa, N Andrade Veríssimo, L Martins Nunes, P Karline Rojas, Ê Simas Macedo, J Erivan Façanha Barreto, H Lopes Ribeiro Junior, D Viana Gondim, G Santos Cerqueira, H Freitas da Silveira
The left coronary artery is responsible for the irrigation of important heart structures. The objective of this study was to analyze the morphological characteristics of the main trunk of left coronary artery in the Brazilian population and its clinical implications. The study was carried out by using 63 adult human hearts of the human anatomy laboratory of the Federal university of Ceará, Brazil. The hearts were dissected for exposure and analysis of the left coronary artery and its branches. The data collected were statistically analyzed...
November 14, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30268353/hox-a2-protein-expression-in-mouse-embryo-middle-ear-ossicles
#15
S Louryan, Marie Lejong, Myriam Choa-Duterre, Nathalie Vanmuylder
The origin of the mammalian middle ear ossicles from mandibular and hyoid pharyngeal arches remains controversial and discussed. Two adverse theories are proposed. The first claims that malleus and incus derive from the Meckel's cartilage of the mandibular arch, and stapes from Reichert's cartilage of the hyoid arch. The second postulates that handle of malleus and long process of the incus are derived from the second arch as well as the stapes. Contradictory analyses support alternatively each theory without any experimental evidence...
September 27, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30266563/a-rare-variation-of-intrinsic-and-extrinsic-hand-muscles-represented-by-a-bi-ventered-first-lumbrical-extending-into-the-carpal-tunnel-combined-with-bilateral-fifth-superficial-flexor-digitorum-tendon-regression
#16
Sandeep Silawal, Karim Rayan Galal, Gundula Schulze-Tanzil
A rare unilateral variation of the first left lumbrical muscle was discovered in a female Caucasian cadaver dissected during a first year anatomy course at the Paracelsus Medical University - Nuremberg, Germany. The muscle possessed two venters with the first originating near the medial epicondyle of the humerus together with the intramuscular tendon of the superficial flexor digitorum tendon, and the second presenting as a regular first lumbrical muscle with radial palmar origin from first tendon of the deep flexor digitorum muscle...
September 25, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30249474/unusual-array-of-neural-communications-in-the-infratemporal-fossa-useful-for-skull-base-surgery
#17
S Gandhi, V Mehta, R K Suri
Variations in the branching pattern of the mandibular nerve frequently accounts for failure to obtain adequate local anesthesia in routine oral and dental procedures, and also for unexpected injury to the nerves during surgery. The knowledge of the neurovascular relationships of the infratemporal region is relevant in odontostomatology practice. In this article we present a rare case of atypical communication between the inferior alveolar nerve and lingual nerve and the mylohyoid and lingual nerves. Further, the clinical implications of these communications on the development of the supplementary innervation and their possible role in anesthesia is discussed in detail...
September 21, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30245167/microcomputed-tomography-microct-and-histology-of-the-mandibular-canal-in-human-and-laboratory-animals
#18
D Chappard, J-D Kün-Darbois, P Mercier, B Guillaume, E Aguado
The inferior alveolar nerve (IAN) is a sensitive branch of the trigeminal nerve. It has an intra-bone path in the mandible, inside the mandibular canal, where it is accompanied by lymph, venous and arterial vessels. We have studied the mandibular canal in human mandibles and in some laboratory animals (mice, rats, rabbits and cats). Microcomputed tomography evidenced that the walls of the canal are made with thin plates of trabecular bone with numerous fenestrations. This aspect is evidenced in dentate subjects and become more evident in edentulous subjects with atrophy of the alveolar bone...
September 20, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30219545/characteristics-of-lingual-papillae-in-diabetic-rats
#19
G Ortug, S Ignak, A Ortug
Diabetes mellitus (DM) is a metabolic disorder resulting with many different complications including soft tissue abnormalities in the oral cavity such as periodontitis and salivary and taste dysfunction. Previous studies also reported fungal and bacterial infections in oral cavity in these patients. This study aims to represent three dimentional morphologic ultrastructural changes of the diabetic rat tongue via scanning electron microscopy. Twenty-four (24) adult male Spraque-Dawley rats, (weight ranging between 200-250g) included in the study were randomly assigned into two groups: control rats were injected with intraperitoneally saline alone, experimental diabetes group received streptozotocin (STZ) (80mg/kg) administrated intraperitoneally...
September 12, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://read.qxmd.com/read/30197034/a-3d-characterization-method-of-geometric-variation-in-edentulous-mandibles
#20
S V Guevara Perez, G de la Rosa Castolo, L Thollon, M Behr
PURPOSE: The aim of this study was to perform an exploratory analysis of the morphological variations of mandibles at diverse states of edentulousness using tridimensional geometric morphometrics. METHODS: Twelve cadaveric mandibles were selected and divided in three groups: dentate (G1), partially edentate (G2) and totally edentate (G3). CT scans, segmentation and digital reconstruction of 3D surfaces of each specimen was made. Thirteen landmarks were defined; the measurement error was determined and 3D morphometrics exploratory analysis by principal components (PCs) and PC scores was performed...
September 6, 2018: Morphologie: Bulletin de L'Association des Anatomistes
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