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Morphologie: Bulletin de L'Association des Anatomistes

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https://www.readbyqxmd.com/read/28964656/-the-dorsoventral-inversion-an-attempt-of-synthesis
#1
REVIEW
S Louryan, N Vanmuylder
The invertebrates, with known exception of echinoderms, are hyponeurian and protostomian. By contrast, echinoderms, chordates and vertebrate are epineurian and deuterostomian. Convinced of the uniqueness origin of all species, Etienne Geoffroy Saint Hilaire (1772-1844), had postulated a complete inversion of body plan to explain this difference. He had to face up to the hostility of the fixist Georges Cuvier (1763-1832). Much later, famous embryologists such as Maurice Caullery still believed that this idea was erroneous...
September 27, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28942348/synthesis-of-%C3%AE-tricalcium-phosphate
#2
H Chaair, H Labjar, O Britel
Ceramics play a key role in several biomedical applications. One of them is bone grafting, which is used for treating bone defects caused by injuries or osteoporosis. Calcium-phosphate based ceramic are preferred as bone graft biomaterials in hard tissue surgery because their chemical composition is close to the composition of human bone. They also have a marked bioresorbability and bioactivity. In this work, we have developed methods for synthesis of β-tricalcium phosphate apatite (β-TCP). These products were characterized by different techniques such as X-ray diffraction, infrared spectroscopy, scanning electron microscopy and chemical analysis...
September 20, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28939266/-a-persistent-sciatic-artery-revealed-by-acute-ischemia-of-the-right-lower-limb-a-case-report
#3
N Benleghib, L Boukabache, B Aziza, L Boudine, A Boulacel, B Boussafsaf
The Persistent Sciatic Artery (PSA) is an unusual anatomical variation due to the persistence of an embryological artery, which should disappear before the 3rd month of intrauterine life. The reported case is that of a woman who developed an acute ischemia of the right lower limb, revealing the presence of persistent sciatic artery. Diagnosis was made only belatedly by means of angio-CT. The amputation was the inevitable choice of treatment.
September 19, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28927574/pronator-teres-accessorius-a-new-variant-in-flexor-antebrachial-musculature
#4
S Kumari, P Chauhan, M Kathole, J Arora, R K Suri, M Kohli
Muscles of flexor compartment of forearm have a common origin from medial epicondyle of humerus. Additional bellies of flexor muscles are commonly reported but presence of supernumerary muscles is an infrequent phenomenon. The present study describes an unusual muscle mass in flexor compartment of forearm simulating pronator teres. During routine dissection the upper limb of a 50 years old male cadaver, a supernumerary muscle was found on left side of the upper limb in the flexor compartment. The origin of the muscle was 2cm wide and aponeurotic in nature and attached to an oblique line extending from the inferior surface of the medial epicondyle and the medial surface of the trochlea...
September 15, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28916231/-malrotated-kidney-causing-prenatal-giant-hydronephrosis
#5
R E Massicot, S Ferracci, A-P Uzel
We report the case of a malrotated right kidney associated with giant prenatal hydronephrosis due to a non vascular extrinsic ureteropelvic compression. The kidney presented an hyper-rotation of 180° in relation to the original fetal position, with the renal hilum backward looking. At neonatal surgery we discover that the inferior pole of the kidney pushes laterally the ureteropelvic junction like a violin bridge. The simple uncrossing of the ureteropelvic junction from the inferior renal pole relieves the extrinsic ureteral obstacle and the giant hydronephrosis...
September 12, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28893491/micro-finite-element-method-to-assess-elastic-properties-of-trabecular-bone-at-micro-and-macroscopic-level
#6
R Rieger, J C Auregan, T Hoc
OBJECTIVE OF THE STUDY: The objective of the present study is to assess the mechanical behavior of trabecular bone based on microCT imaging and micro-finite-element analysis. In this way two methods are detailed: (i) direct determination of macroscopic elastic property of trabecular bone; (ii) inverse approach to assess mechanical properties of trabecular bone tissue. PATIENTS: Thirty-five females and seven males (forty-two subjects) mean aged (±SD) 80±11.7 years from hospitals of Assistance publique-Hôpitaux de Paris (AP-HP) diagnosed with osteoporosis following a femoral neck fracture due to a fall from standing were included in this study...
September 8, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28890314/bilateral-clavicular-attachment-of-omohyoid-muscle
#7
N Singh, M Kathole, J Kaur, V Mehta, R K Suri, G Rath, M Kohli
Omohyoid muscle present in cervical region is of particular importance to anatomists as it defines anteriorly the carotid triangle and divides the posterior cervical triangle. It has superior and inferior bellies and an intermediate common tendon. Like sternohyoid, sternothyroid and thyrohyoid muscles, omohyoid is also an infrahyoid muscle, but it differs from them in its course. The infrahyoid muscles are formed from a muscle primordium occurring in the anterior cervical area. Anderson (Anderson, 1881) theorized that the superior belly of the omohyoid muscle is a true infrahyoid muscle, whereas the inferior belly most likely shares a common embryology with the subclavius muscle...
September 7, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28781145/-duplication-of-the-acromioclavicular-joint-a-case-dating-from-the-end-of-the-19th-century
#8
E Verna, S Parmentier, A Richier, K Chaumoitre, M Panuel, Y Ardagna
The duplication of the acromioclavicular joint is a very rare anomaly of shoulder girdle. Here, we present a new case of unilateral duplication of the acromioclavicular joint observed on an individual from the 19th century. In the literature, two hypotheses are proposed to explain the origin of this anomaly. The first is a congenital origin that could be explained by in utero displacement of one of the clavicle's primary ossification centers, or the existence of an additional ossification center. The second is a traumatic origin resulting from an acromioclavicular fracture that occurred during the growth period of the individual...
August 3, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28992852/beta-tricalcium-phosphate-and-bone-surgery-editorial
#9
EDITORIAL
D Chappard
No abstract text is available yet for this article.
September 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28732678/ultrasound-guided-fine-needle-capillary-cytology-of-parotid-gland-masses-coupled-with-a-rapid-on-site-evaluation-improves-results
#10
R Barats, S Evrard, L Collin, S Vergez, S Gellée, M Courtade-Saïdi
OBJECTIVE OF THE STUDY: To test whether a direct-on-site microscopic examination of fresh, unstained puncture slides by the radiologist decreases the rate of false-negative cases on ultrasound-guided fine-needle cytology of parotid gland masses. PATIENTS: Thirty parotid gland masses from 28 patients were punctured under ultrasound guidance. The same group was used as its control group. METHODS: After one or two passes, the material was spread on slides and air-dried (control group, without microscopic examination)...
July 18, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28595833/a-history-of-calcium-orthophosphates-capo4-and-their-biomedical-applications
#11
REVIEW
S V Dorozhkin
The historical development of a scientific knowledge on calcium orthophosphates (CaPO4) from 1770-s till 1950 is described. Many forgotten and poorly known historical facts and approaches have been extracted from old publications and then they have been analyzed, systematized and reconsidered from the modern point of view. The chosen time scale starts with the earliest available studies of 1770-s (to the best of my findings, CaPO4 had been unknown before), passes through the entire 19th century and finishes in 1950, because since then the amount of publications on CaPO4 rapidly increases and the subject becomes too broad...
June 5, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28622773/a-new-editorial-project-for-morphologie
#12
EDITORIAL
D Chappard, S Louryan
No abstract text is available yet for this article.
June 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28506708/electron-microscopy-approach-for-the-visualization-of-the-epithelial-and-endothelial-glycocalyx
#13
L Chevalier, J Selim, D Genty, J M Baste, N Piton, I Boukhalfa, M Hamzaoui, P Pareige, V Richard
This study presents a methodological approach for the visualization of the glycocalyx by electron microscopy. The glycocalyx is a three dimensional network mainly composed of glycolipids, glycoproteins and proteoglycans associated with the plasma membrane. Since less than a decade, the epithelial and endothelial glycocalyx proved to play an important role in physiology and pathology, increasing its research interest especially in vascular functions. Therefore, visualization of the glycocalyx requires reliable techniques and its preservation remains challenging due to its fragile and dynamic organization, which is highly sensitive to the different process steps for electron microscopy sampling...
June 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28442174/microstructural-alterations-owing-to-handling-of-bovine-pericardium-to-manufacture-bioprosthetic-heart-valves-a-potential-risk-for-cusp-dehiscence
#14
J Mao, Y Wang, E Philippe, T Cianciulli, I Vesely, D How, J-M Bourget, L Germain, Z Zhang, R Guidoin
INTRODUCTION: Cross-linking and anti-calcification of prosthetic heart valves have been continuously improved to prevent degeneration and calcification. However, non-calcific structural deteriorations such as cuspal dehiscences along the stent still require further analysis. MATERIAL AND METHOD: Based upon the previous analysis of an explanted valve after 7 years, a fresh commercial aortic valve was embedded in poly(methyl methacrylate) (PMMA) and cut into slices to ensure the detailed observation of the assembly and material structures...
June 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28571762/filling-bone-defects-with-%C3%AE-tcp-in-maxillofacial-surgery-a-review
#15
REVIEW
B Guillaume
Reconstruction of bone defects prior to implant placement now involves synthetic substitutes such as β-TCP because of its ability to promote bone remodeling. Its capacity to be progressively substituted by the patient's bone allows to regenerate a dense bone volume. In addition, its availability in large quantities, avoiding the morbidity observed with harvesting autogenous bone, widens the operative indications. In this paper, the main indications of β-TCP in maxillofacial surgery (dentistry, parodontology and dental implant surgery) are reviewed...
May 29, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28528795/-original-three-dimensional-reconstruction-of-a-case-of-metopism-associated-with-a-unilateral-complete-absence-of-the-left-frontal-sinus-clinical-interest-and-review-of-the-literature
#16
M Eliezer, F Crampon, J Adnot, F Duparc, O Trost
Metopism (complete persistence of the metopic suture in adults) is a rare but not exceptional variation of the calvaria. Hypoplasia or aplasia of the frontal sinus may be associated without evident correlation. Nevertheless, a misdiagnosis of these variations may have clinical consequences, especially in a traumatic context. The aim of this paper was to report a case of metopism associated with a unilateral aplasia of the left frontal sinus, originally illustrated with 3D image fusion volume rendering reconstructions...
May 18, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28528186/the-pouch-of-the-douglas-s-pouch
#17
I Sall, E Diémé, M Diallo, E Bénadji, M Diouf, B Ndiaye, O Fall, A Sow, I C Diakhaté, M Ogougbémy
Hernia is described as the protrusion of an organ into the wall of its normal containing cavity. Internal hernia (IH) involves protrusion of viscera through: a peritoneal or mesentery defect, a normal or abnormal compartment of the peritoneal cavity. Hernias occurring in the pelvis cavity are usually classified according to the fascial margins breached and include sciatic, obturator and those through the rectouterin pouch: elytrocele and enterocele. Those hernias are defined by the protrusion of a viscus through the wall of the pelvis due to weakness of the pelvic fascia and/or muscles...
May 17, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28522228/accessory-subscapularis-muscle%C3%A2-%C3%A2-a-forgotten-variation
#18
L A S Pires, C F C Souza, A R Teixeira, T F O Leite, M A Babinski, C A A Chagas
The quadrangular space is a space in the axilla bounded by the inferior margin of the teres minor muscle, the superior margin of the teres major muscle, the lateral margin of the long head of the triceps brachii muscle and the surgical neck of the humerus, medially. The axillary nerve (C5-C6) and the posterior circumflex humeral artery and veins pass through this space in order to supply their territories. The subscapularis muscle is situated into the scapular fossa and inserts itself into the lesser tubercle of the humerus, thus helping stabilize the shoulder joint...
May 15, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28506709/behavior-of-macrophage-and-osteoblast-cell-lines-in-contact-with-the-%C3%AE-tcp-biomaterial-beta-tricalcium-phosphate
#19
B Arbez, H Libouban
Beta-tricalcium phosphate (β-TCP) is a synthetic ceramic used for filling bone defects. It is a good alternative to autologous grafts since it is biocompatible, resorbable and osteoconductive. Previous in vivo studies have shown that macrophages are one of the first cells coming in contact with the biomaterial followed by osteoclasts and osteoblasts that will elaborate new bone packets. Studies have focused on osteoclast morphology and very few of them have investigated the role of macrophages. The aims of this study were to characterize (i) the biomaterial surface; (ii) the in vitro behavior of macrophages (J774...
May 12, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28501354/calcium-orthophosphates-capo4-occurrence-and-properties
#20
REVIEW
S V Dorozhkin
The present overview is intended to point the readers' attention to the important subject of calcium orthophosphates (CaPO4). This type of materials is of the special significance for the human beings because they represent the inorganic part of major normal (bones, teeth and antlers) and pathological (those appearing due to various diseases) calcified tissues of mammals. For example, atherosclerosis results in blood vessel blockage caused by a solid composite of cholesterol with CaPO4, while dental caries (tooth decay) and osteoporosis (a low bone mass with microarchitectural changes) mean a partial decalcification of teeth and bones, respectively, that results in replacement of a less soluble and harder biological apatite by more soluble and softer calcium hydrogenorthophosphates...
May 10, 2017: Morphologie: Bulletin de L'Association des Anatomistes
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