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Morphologie: Bulletin de L'Association des Anatomistes

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https://www.readbyqxmd.com/read/30348489/intraosseous-metal-implants-in-orthopedics-a-review
#1
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...
October 19, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/30268353/hox-a2-protein-expression-in-mouse-embryo-middle-ear-ossicles
#2
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 26, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.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
#3
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://www.readbyqxmd.com/read/30249474/unusual-array-of-neural-communications-in-the-infratemporal-fossa-useful-for-skull-base-surgery
#4
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://www.readbyqxmd.com/read/30245167/microcomputed-tomography-microct-and-histology-of-the-mandibular-canal-in-human-and-laboratory-animals
#5
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://www.readbyqxmd.com/read/30219545/characteristics-of-lingual-papillae-in-diabetic-rats
#6
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://www.readbyqxmd.com/read/30197034/a-3d-characterization-method-of-geometric-variation-in-edentulous-mandibles
#7
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
https://www.readbyqxmd.com/read/30197033/variant-morphology-and-arterial-supply-of-diaphragmatic-crura-with-probe-patent-foramen-ovale
#8
D Poonia, P Goswami, S Mishra
Crura are the posterior pillars of the tendino-muscular partition between thoracic and abdominal cavity. This study highlights bilaterally an unfamiliar morphology of diaphragmatic crura with uncommon origin of inferior phrenic artery and accompanying atrial septal defect in a 63-years-old female cadaver with scoliosis. An attempt is made to portray the clinical implications of these variations. In addition authors have discussed the embryological and genetic basis of these variations. In the recent few decades, surgical correction of scoliosis involving intervention with the crura has gained pace...
September 6, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/30195667/ethanol-extract-of-curcuma-longa-rhizome-mitigates-potassium-bromate-induced-liver-changes-in-the-wistar-rat-histological-histochemical-and-immunohistochemical-assessments
#9
P O Awoniran, D O Adeyemi
The effects of Curcuma longa rhizome on hepatic cells, glycogen, connective tissue fibres and filamentous cytoskeleton were evaluated following KBrO3 -induced liver injury in Wistar rats. Thirty-five male rats were randomly divided into seven groups (n=5). Group 1 were normal saline treated rats. Hepatic injury was induced in groups 2 to 7 by oral administration of 100mg/kg KBrO3 for 2 weeks. Following induction, rats in group 2 were sacrificed while groups 3, 4, 5 were given oral dose of EECLOR at 100, 200, 400mg/kg respectively...
September 5, 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/30078469/a-histological-assessment-of-effects-of-sucralose-on-liver-of-albino-rats
#10
D Dhurandhar, V Bharihoke, S Kalra
OBJECTIVE OF THE STUDY: Sucralose is an artificial sweetener freely available under different brand names over the counter. This study is aimed at evaluating the histopathological changes in the liver after administration of sub lethal dose of pure sucralose. MATERIALS AND METHODS: Inbred adult Wistar albino rats weighing about 150-200g of either sex, were divided into 6 control rats and 6 experimental rats. Experimental rats were given sucralose orally by gavage in the dose of 3g/kg/day dissolved in distilled water for 30 days whereas Control rats received equal quantity of distilled water by the same route...
September 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/30075941/synergism-between-phorbol-12-myristate-13-acetate-and-vitamin-d3-in-the-differentiation-of-u937-cells-to-monocytes-and-macrophages
#11
J F Valdés López, S Urcuqui-Inchima
Phorbol-12-myristate-13-acetate (PMA) and 1,25-dihydroxyvitamin D3 (VD3) are stimuli commonly used to induce macrophage differentiation in monocytic cell lines, but the extent of differentiation in comparison to primary tissue macrophages is unclear. Here, we examine the morphological/phenotypic markers associated with differentiation of U937 cells into monocytes/macrophages, in response to PMA or VD3 treatment. PMA stimulus but not with VD3, induced changes in cell morphology indicative of differentiation, but did not show differentiation comparable to monocyte-derive macrophage (MDM)...
September 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29861379/revisiting-avicenna-s-980-1037-ad-anatomy-of-the-abdominal-viscera-from-the-canon-of-medicine
#12
P Mazengenya, R Bhikha
Avicenna (980-1037 A.D) was the most influential Iranian physician and philosopher in the medieval era. Avicenna composed and compiled treaties on various aspects of medicine in his famous book the Canon of Medicine. Avicenna's treaties have inspired countless debates in all fields of medicine including basic medical sciences. In his treaties, Avicenna adopted the practical approach to the descriptions of the human body and the diseases associated. He made substantial contribution to the medical literature and medical education through his observations and clinical studies...
September 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29807855/geldanamycin-administration-reduces-the-amount-of-primordial-germ-cells-in-the-mouse-embryo
#13
M Lejong, M Choa-Duterre, N Vanmuylder, S Louryan
INTRODUCTION: Heat shock proteins (HSPs) are expressed or overexpressed in response to exposure to stress. They act as molecular chaperones, ensuring the correct folding of numerous client proteins. HSP90 is one of the most conserved HSPs. Its role extends beyond stress tolerance. HSP90 also contributes to development, differenciation, apoptosis and oncogenesis. Numerous tumors are associated with an overexpression of HSP90 and this expression can be used to evaluate its metastatic capacity...
September 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29858141/-contributions-of-embryology-and-comparative-anatomy-for-teaching-of-cranial-nerves
#14
REVIEW
S Louryan, N Vanmuylder
Some authors propose a global approach, including imaging, to describe cranial nerves from a clinical point of view. If we can agree to a certain extent with this proposal, we consider that the use of a medical point of view can neglect histological and embryological features which contribute to a better understanding of nerve function. For example, it is false to consider totally "nerves" I and II as "sensory cranial nerves". They are not true nerves, but derive manly from direct expansions of the central nervous system...
June 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29778635/a-critical-appraisal-of-11-th-century-treatise-by-ibn-sina-avicenna-on-the-anatomy-of-the-vascular-system-comparison-with-modern-anatomic-descriptions
#15
COMPARATIVE STUDY
P Mazengenya, R Bhikha
Ibn Sina (also known as Avicenna in the West) was the most famous physician and medical scientist of the medieval era. His book, the Canon of Medicine comprised a vast collection of medical information ranging from basic medical sciences to specialised medical fields. Herein, we present an analysis of the cardiovascular system, particularly giving an in-depth comparison of the structural and functional anatomy of the arteries and veins of the body as described by Avicenna in the Canon of Medicine and comparing them to modern extant anatomical literature...
June 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29731327/the-round-ligament-of-the-uterus-questioning-its-distal-insertion
#16
A Bellier, G Cavalié, G Marnas, P Chaffanjon
PURPOSE: Classically, the round ligament of the uterus (RLU) attaches distally in the ipsilateral labia majora. This attachment has rarely been described in adults. That is why we have performed an anatomical study focused on this distal ending. PATIENTS: We performed in 2015 the cadaveric dissection of 19 RLU. METHODS: In all cases, the RLU was individualized on its entire length from its uterine origin to the inguinal canal. Then this canal was open from its internal orifice to its external orifice...
June 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29625795/the-venous-patterns-of-the-cubital-fossa-in-subjects-from-brazil
#17
L Pires, A L Ráfare, B U Peixoto, T O J S Pereira, D M M Pinheiro, M E B Siqueira, R D Vaqueiro, R C de Paula, M A Babinski, C A A Chagas
Venous punctures are among the most common procedures performed by healthcare professionals. In particular, the cubital fossa is the site where the venous accesses are frequently made due to the number of superficial veins and the numerous anastomoses in this region. The arrangement of these venous connections is of particular interest for clinical application in several areas, thus, the healthcare professional must possess knowledge about these vessels and their anatomical relationships. The present study aims to analyze the venous pattern of the cubital fossa among individuals from Brazil...
June 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29615313/-aberrant-birth-of-a-radial-artery-in-the-upper-third-of-the-forearm-a-case-report
#18
M Barry, J Nader, Y Hun, E Havet, F Barry, M Laude, B Bonnaire, T Caus
We report the case of a 68-year-old patient, operated on in our department of a quadruple coronary bypass grafting. The grafting strategy consisted initially on harvesting the left internal thoracic artery and the left radial artery. The harvest of this latter failed because of a rare anatomical variation of the radial artery, which rose from the confluence of two branches: a superficial and a deep radial artery at the proximal third of the forearm approximately 10cm below the elbow.
June 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29530649/metaplastic-woven-bone-in-bone-metastases-a-fourier-transform-infrared-analysis-and-imaging-of-bone-quality-ftir
#19
COMPARATIVE STUDY
D Chappard, G Mabilleau, C Masson, A Tahla, E Legrand
Most osteolytic tumors are in fact mixed and contain an osteoblastic component associated with the predominant osteolytic areas. This metaplastic woven bone is always evidenced by histological analysis even in the absence of radiological expression. Metaplastic bone formation reflects the activation of new osteoblasts coming from the stimulation of the dormant lining cells. Twelve patients with secondary metastases of the iliac crest evidenced by hot spots on a 99 Tc-MBP san were diagnosed by histomorphometry on bone biopsies...
June 2018: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29496384/unilateral-asymmetrical-anterior-bellies-of-the-digastric-muscle-in-coexistence-with-accessory-muscle-bundles-in-the-submental-triangle-a-rare-case-report
#20
K Natsis, M Piagkou, P Vrochidis, E Papadopoulou, N Lazaridis
A three-headed anterior belly of the digastric muscle (ABDM) on the right side of a 54-year old Greek male cadaver coexisted with two accessory muscle bundles (AMB) in the submental region. The left ABDM was typical. Typical ABDM was attached to the digastric fossa, while the accessory right anterior bellies to the lower border of the mandible. A muscle bundle arising from the attachment of the left ABDM to the hyoid bone was also observed fusing with the AMB of the ipsilateral side. It is of extreme importance to be aware of the submental region anatomical variations during surgery, imaging interpretation or differential diagnosis of neck masses...
June 2018: Morphologie: Bulletin de L'Association des Anatomistes
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