2,251 results match your criteria Annals of Anatomy Anatomischer Anzeiger [Journal]


Association of Infra-Patellar Fat Pad Size with Age and Body Weight in Children and Adolescents.

Ann Anat 2020 Jul 1:151533. Epub 2020 Jul 1.

Department of Imaging and Functional Musculoskeletal Research, Institute of Anatomy, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria; Department of Orthopedic Surgery & Traumatology, Landesklinik Tamsweg, Paracelsus Medical University, Tamsweg, Austria.

Background: The infra-patellar fat pad (IPFP) represents a potential mediator between obesity, low grade inflammation, and knee osteoarthritis via endocrine pathways. Yet, not only in adults, but also in childhood obesity negatively impacts knee structures.

Objective: The current study therefore investigated the sex-specific growth of the IPFP with age and body weight in healthy children and adolescents. Read More

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Surgical anatomy of the lateral circumflex femoral artery branches: Contribution to the blood loss control during hip arthroplasty.

Ann Anat 2020 Jun 27;232:151566. Epub 2020 Jun 27.

Department of Anatomy and Surgical Anatomy, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Greece; European Interbalkan Medical Center, Thessaloniki, Greece.

Background: The lateral circumflex femoral artery (LCFA) branches encountered during anterior and lateral hip approaches; although vessels' haemostasis is suggested in surgical textbooks, literature is scarce regarding their topography. The current study defines the exact location of the LCFA and its branches, based on osseous landmarks, as well as their size and possible variants, providing helpful information for intraoperative identification and demonstrating the magnitude of potential haemorrhage during hip surgery.

Methods: Twenty-three human cadavers (46 lower limbs) were dissected. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151566DOI Listing

Changes in the number of mast cells, expression of fibroblast growth factor-2 and extent of interstitial fibrosis in established and advanced hypertensive heart disease.

Ann Anat 2020 Jun 27;232:151564. Epub 2020 Jun 27.

Department of Anatomy, Histology and Embryology, Medical University of Sofia, Bulgaria.

Introduction: An increasing number of studies have shed light on the role of cardiac mast cells in the pathogenesis of hypertension-induced myocardial remodeling. Mast cells promote fibroblast activation, myofibroblast differentiation and subsequent collagen accumulation through the action of tryptase, chymase, histamine and fibroblast growth factor-2. The aim of the present study was to report on the changes in the number of mast cells as evaluated through toluidine blue, tryptase and c-kit staining, to assess the extent of interstitial fibrosis and correlate it with the changes in the number of mast cells and to analyze the immunohistochemical expression of fibroblast growth factor-2 in two groups of spontaneously hypertensive rats indicative of established and advanced hypertensive heart disease. Read More

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June 2020
2.075 Impact Factor

Changes in TRPV1 expression in the POA of ovariectomized rats regulated by NE-dependent α2-ADR may be involved in hot flashes.

Ann Anat 2020 Jun 27:151565. Epub 2020 Jun 27.

Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China. Electronic address:

Background: Hot flashes (HF) caused by low estrogen in menopause result from changes in thermoregulatory processes in the hypothalamic preoptic area (POA). In the POA, transient receptor potential vanilloid 1 (TRPV1) participates in heat dissipation processes. Studies suggest that TRPV1 expression may be regulated by norepinephrine (NE)-activated α2-adrenergic receptors (α2-ADR) in the dorsal root ganglia. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151565DOI Listing

Blood supply to the chorda tympani: a review and clinical applications.

Ann Anat 2020 Jun 26:151561. Epub 2020 Jun 26.

Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA; Department of Anatomical Sciences, St. George's University, St. George's, West Indies, Grenada; Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, United States.

The chorda tympani (CT) is important in gustatory sensation from the anterior two-thirds of the tongue and in secretomotor innervation to the submandibular and sublingual glands. Although the blood supply to the CT is not well delineated in the literature, some studies have shown that a posterior tympanic branch of the stylomastoid artery supplies CT at its origin from the mastoid segment of the facial nerve. We review the blood supply to the CT comprehensively. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151561DOI Listing

Development of an ultrasound-capable phantom with patient-specific 3D-printed vascular anatomy to simulate peripheral endovascular interventions.

Ann Anat 2020 Jun 23;232:151563. Epub 2020 Jun 23.

Department of Surgery, Division of Vascular and Endovascular Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany.

Purpose: Today, ultrasound-guided peripheral endovascular interventions have the potential to be an alternative to conventional interventions that are still X-ray and contrast agent based. For the further development of this approach, a research environment is needed that represents the individual patient-specific endovascular properties as realistically as possible. Aim of the project was the construction of a phantom that combines ultrasound capabilities and the possibility to simulate peripheral endovascular interventions. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151563DOI Listing

Assessing weaning stress - Relations between enamel hypoplasia, δO and δC values in human teeth obtained from early modern cemeteries in Wroclaw, Poland.

Ann Anat 2020 Jun 20;232:151546. Epub 2020 Jun 20.

Institute of Geological Sciences, Polish Academy of Sciences, Research Centre in Warszawa, Wroclaw, Poland.

Objectives: The aim of this paper is to assess linear enamel hypoplasia (LEH) on canines of adults from early modern Wroclaw cemeteries to compare δC and δO values in enamel formed before, during and after LEH formation, and to attempt to find a link between the selected indicators of the weaning process.

Material And Methods: 15 permanent canines with visible LEH were selected for analysis. Age at LEH formation was estimated using the Reid and Dean method. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151546DOI Listing

Distribution and chemical coding of phoenixin-immunoreactive nerve structures in the spinal cord of the pig.

Ann Anat 2020 Jun 20;232:151559. Epub 2020 Jun 20.

Department of Human Physiology and Pathophysiology, School of Medicine, University of Warmia and Mazury in Olsztyn, Warszawska 30, 10-082 Olsztyn, Poland. Electronic address:

Phoenixin (PNX) is a newly described peptide found in both neural and non-neural tissues. Until now, no attempts have been made to investigate the expression of PNX in the nervous system of animals other than laboratory rodents, in which an enzyme immunoassay revealed the highest quantity of the substance in the spinal cord. Since the domestic pig, due to its anatomical and histological resemblance to humans, is often used as an animal model in biomedical investigations, the present study was designed to examine PNX-immunoreactivity in the spinal cords of female pigs (n=5). Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151559DOI Listing

Endoscopic projection of the gastroduodenal artery: Anatomical implications for bleeding management.

Ann Anat 2020 Jun 18;232:151560. Epub 2020 Jun 18.

University Clinic for Visceral, General and Transplant Surgery, University Hospital Tübingen, Tübingen, Germany. Electronic address:

Introduction: Peptic ulcers account for 50% of upper gastrointestinal bleeding incidents. Bleedings from large vessels, such as the gastroduodenal artery, are associated with increased mortality. Ulcers located on the posterior wall of the duodenum show the highest risk for erosion of the gastroduodenal artery. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151560DOI Listing

Using the venous angle as a pressure reservoir to retrogradely fill the subclavian lymphatic trunk with contrast agent for lymphatic mapping.

Ann Anat 2020 Jun 18;232:151562. Epub 2020 Jun 18.

Department of Human Structure and Repair, Ghent University, C. Heymanslaan 10, Radiotherapy Park, Entrance 98, B-9000, Ghent, Belgium.

Background: Visualizing the lymphatic system and recording the spatial relations between the subclavian lymphatic trunk (SLT) and the surrounding anatomical structures will improve radiotherapy treatment planning for breast cancer patients with lymphatic involvement. An experimental approach to retrogradely fill the SLT with contrast agent was explored.

Methods: Six Thiel embalmed specimens were bilaterally dissected in the cervical and clavicular region to optimize the new experimental approach. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151562DOI Listing

Developmental change in the gene expression of transient receptor potential melastatin channel 3 (TRPM3) in murine lacrimal gland.

Ann Anat 2020 Jun 5;231:151551. Epub 2020 Jun 5.

Department of Ophthalmology, National Defense Medical College, Saitama, Japan.

Transient receptor potential (TRP) channels are cation channels with ubiquitous expression. Various TRP channels are functionally active at the ocular surface and are involved in tear secretion and multiple inflammatory processes. So far, the impact of TRP channels regarding the development of the lacrimal gland (LG) is unclear. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151551DOI Listing

Autoradiography and inmmunolabeling suggests that lizard blastema contains arginase-positive M2-like macrophages that may support tail regeneration.

Authors:
Lorenzo Alibardi

Ann Anat 2020 Jun 5;231:151549. Epub 2020 Jun 5.

Comparative Histolab Padova and Department of Biology University of Bologna, Italy. Electronic address:

Background: The regenerating blastema of the tail in the lizard Podarcis muralis contains numerous macrophages among the prevalent mesenchymal cells. Some macrophages are phagocytic but others are devoid of phagosomes suggesting that they have other roles aside phagocytosis.

Methods: The presence of healing macrophages (M2-like) has been tested using autoradiographic, immunohistochemical and ultrastructural studies. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151549DOI Listing

Anthropometry of the human calcaneus and orientation of the articular facet for the cuboid bone as a basis for anatomically correct positioning of osteosynthetic screws in fracture treatment.

Ann Anat 2020 Jun 5;232:151548. Epub 2020 Jun 5.

Department of Anatomy, Second Faculty of Medicine, Charles University, Plzenska 130/221, Praha 5 - Motol, 150 06, Prague, Czech Republic.

Purpose: Fractures of the calcaneus are reported most commonly in the tarsal region. Their incidence is highest among active people in productive age. As such, optimal treatment can have vast implications for patients. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151548DOI Listing

Structural topography of the interosseous membrane of the human forearm.

Ann Anat 2020 Jun 5;231:151547. Epub 2020 Jun 5.

Department of Plastic and Hand Surgery, Burn Unit, Klinikum Sankt Georg, Delitzscher Straße 141, 04129 Leipzig, Germany.

The aim of this study was to evaluate the morphology of the six different parts of the interosseous membrane (IOM) in 11 human cadaver forearms, including the distal oblique bundle (DOB), the distal accessory band (DAB), the central band (CB), the proximal accessory band (PAB), the dorsal oblique accessory cord (DOAC), and the proximal oblique cord (POC). Hematoxylin-eosin and Elastica van Gieson stained slices were used to investigate the tissue morphology. The DOB and DOAC were absent in one IOM and the POB in two IOMs, respectively. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151547DOI Listing

Flexor tendon grafts for pulley reconstruction - Morphological aspects.

Ann Anat 2020 Jun 5;231:151550. Epub 2020 Jun 5.

Institute for Clinic al and Experimental Surgery, Saarland University, Homburg/Saar, Germany; Department of Plastic Surgery and Hand Surgery, University Hospital Zürich, University of Zürich, Zürich, Switzerland. Electronic address:

Background: Pulleys are crucial to convert flexor tendon excursion into angular motion at the metacarpophalangeal and interphalangeal joints. Loss of pulley function can lead to significant impairment of hand function and may require surgical reconstruction. This reconstruction can be achieved using different flexor tendons grafts, such as the intrasynovial flexor digitorum superficialis (FDS) or the extrasynovial palmaris longus (PL). Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151550DOI Listing

Reprint of Corrosion casting of the temporal bone: Review of the technique.

Ann Anat 2020 Jul 27;230:151518. Epub 2020 May 27.

Department for Otorhinolaryngology, Hannover Medical School, Hannover, Germany.

The temporal bone has the most sophisticated anatomy of the whole skeleton. Its study is a challenge for students and surgeons. An inverse model of the visually obscured cavities and canals can facilitate better three-dimensional orientation and investigation. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151518DOI Listing

An interprofessional teaching approach for medical and physical therapy students to learn functional anatomy and clinical examination of the lower spine and hip.

Ann Anat 2020 May 23;231:151534. Epub 2020 May 23.

Institute for Anatomy and Cell Biology, Department of Molecular Embryology, Faculty of Medicine, University of Freiburg, Albertstraße 17, 79104 Freiburg, Germany. Electronic address:

Introduction: Pain of the lower back is a frequent symptom and is treated by different health professions. Anatomical as well as clinical knowledge is utmost important for all professions involved in this field. Here, we present a model that brings together an interprofessional team of experts to teach functional and clinical anatomy of the lower spine and hip area to medical and physical therapy students. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151534DOI Listing

Localization of the center of the intramuscular nerve dense region of the medial femoral muscles and the significance for blocking spasticity.

Ann Anat 2020 May 11;231:151529. Epub 2020 May 11.

Department of Anatomy, Zunyi Medical University, Zunyi, 563099, People's Republic of China. Electronic address:

Purpose: To identify the body surface position and depth of the center of the intramuscular nerves dense region (CINDR) of the medial femoral muscles.

Methods: Utilizing twelve Chinese adult cadavers (six men and six women), with an age range from 35 to 75 (66.5±5. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151529DOI Listing

Expression of Toll-like receptors 4 and 7 in murine peripheral nervous system development.

Ann Anat 2020 May 4;231:151526. Epub 2020 May 4.

Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milano, Italy.

Background: Toll-Like Receptors (TLRs) play a critical role in the innate and adaptive immune system. They are the mammalian orthologs of Drosophila melanogaster protein Toll, which has been proved to have an early morphogenetic role in invertebrate embryogenesis that in the adult switches to an immune function.

Aim: The aim of this study was to evaluate the expression of TLR4 and TLR7 during dorsal root ganglia (DRG), paravertebral ganglia (PVG), and enteric nervous system (ENS) murine development. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151526DOI Listing

Marginal bone loss around bone-level and tissue-level implants: A systematic review and meta-analysis.

Ann Anat 2020 May 4;231:151525. Epub 2020 May 4.

Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:

Purpose: To review the scientific evidence regarding the marginal bone loss around the tissue-level and bone-level implants.

Methods: MEDLINE-PubMed and EMBASE databases were searched for the relevant English articles (up to February 2019) assessing the marginal bone loss (MBL) as the primary outcome. To be selected, studies were supposed to directly mention "tissue-level" and "bone-level" implants or implants with and without a smooth neck. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151525DOI Listing

Osteogenic inducer sustained-release system promotes the adhesion, proliferation, and differentiation of osteoblasts on titanium surface.

Ann Anat 2020 May 4;231:151523. Epub 2020 May 4.

Oral and Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou 646000, China; Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China. Electronic address:

Objective: Biomaterial can be locally applied to promote the osseointegration of dental implants. This study aimed to fabricate an osteogenic inducer (OI) sustained-release system and to evaluate its effects on the adhesion, proliferation, and differentiation of osteoblasts on titanium surfaces.

Methods: First of all, different contents of OI solution were added to the poly (lactic-co-glycolic acid) (PLGA) gel individually to investigate the best physical properties and drug-release rate. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151523DOI Listing

Ecomorphological associations of scapulocoracoid form in Greater Antillean Anolis lizards.

Ann Anat 2020 May 4;231:151527. Epub 2020 May 4.

Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.

External morphological metrics have featured prominently in comparative studies examining the morphological convergence that characterizes anoline ecomorphs. To what degree the appendicular-skeletal morphology of Greater Antillean island Anolis lizards tracks their diversity and ecological adaptation, however, remains relatively unexplored. Here we employ computed tomographic scanning techniques to visualize in situ the scapulocoracoid of ecomorph representatives (trunk-ground, trunk-crown, crown-giant, twig) from three islands (Jamaica, Hispaniola, and Puerto Rico), and compare its three-dimensional geometry using qualitative-descriptive and quantitative-morphometric techniques. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151527DOI Listing

Ridge preservation of compromised extraction sockets applying a soft cortical membrane: A canine proof-of-principle evaluation.

Ann Anat 2020 May 4;231:151524. Epub 2020 May 4.

Department for Periodontology, Faculty of Health, Witten/Herdecke University, Witten, Germany.

Objectives: To explore whether placement of a soft cortical membrane can restore and regenerate the original alveolar ridge contour in deficient sockets.

Materials And Methods: One Beagle dog was used in this proof-of-principle evaluation. In a first intervention, a standardized buccal dehiscence defect was artificially created at the distal roots of the 3rd and 4th mandibular premolars. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151524DOI Listing

The use of plasma rich in growth factors (PRGF) in guided tissue regeneration and guided bone regeneration. A review of histological, immunohistochemical, histomorphometrical, radiological and clinical results in humans.

Ann Anat 2020 May 4;231:151528. Epub 2020 May 4.

University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain; BTI Biotechnology Institute, Vitoria, Spain.

Background: Modern surgeries have advanced toward personalized minimal-invasive treatments with a high rate of clinical healing that facilitates the regeneration of tissues. One of the leading approaches to deliver endogenous plasma- and platelet-derived growth factors is the plasma rich in growth factors (PRGF). This narrative review determines the effects of using PRGF in different oral surgical procedures including alveolar ridge augmentation, socket preservation, sinus floor augmentation and periodontal regeneration. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151528DOI Listing

Anatomical variations and innervation patterns of the superior oblique muscle.

Ann Anat 2020 Jul 25;230:151522. Epub 2020 Apr 25.

Department of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of Lodz, Poland.

Goal: The location and anatomical relationships of the superior oblique muscle make surgical intervention difficult. The aim of the present paper was therefore to supplement existing anatomical descriptions of this muscle. Its anatomical variability is particularly emphasized, including variations in muscle and tendon size and details of the innervation pattern. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151522DOI Listing

Supporting early career anatomists: An international challenge.

Ann Anat 2020 Apr 25;231:151520. Epub 2020 Apr 25.

Department of Anatomy, School of Medical Sciences, University of New South Wales- Sydney, Wallace Wurth Building, Kensington, NSW, Australia.

Introduction: The formative years in academia are difficult for early career academics as they transition into their new roles in teaching and research. Ubiquitous changes in health sciences education have compounded this transition for early career anatomists (ECA), who must balance curriculum transformations, research imperatives and administrative responsibilities as they navigate their transition. Support for ECAs is thus important in order to provide a strong pipeline of anatomists for the future of the discipline and its foundational role in the health sciences. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151520DOI Listing

Innominate variant artery in the first web space.

Ann Anat 2020 Jul 25;230:151521. Epub 2020 Apr 25.

Department of Anatomy, Second Faculty of Medicine, Charles University, Prague 150 06, Czech Republic; Department of Health Care Studies, College of Polytechnics Jihlava, Jihlava 586 01, Czech Republic. Electronic address:

Introduction: Numerous variations are characteristic for hand anatomy. Although a lot of work has been done in the field, a detailed description of the branches of the radial artery is still missing. The aim of this study is to determine the incidence and diameter of the accessory artery, which can be found running on the dorsal surface of the interosseus dorsalis primus muscle, to deliver the detailed description of this arterial variation and based on that to suggest a systematic name of the artery which would be in line with Terminologia Anatomica. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151521DOI Listing

Feasibility of an endovascular training and research environment with exchangeable patient specific 3D printed vascular anatomy: Simulator with exchangeable patient-specific 3D-printed vascular anatomy for endovascular training and research.

Ann Anat 2020 Apr 17;231:151519. Epub 2020 Apr 17.

Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, Lübeck, Germany.

Purpose: Endovascular interventions have become standard procedures for the therapy of abdominal aortic aneurysms. Therefore, endovascular surgeons need special skills which have to be learned and trained. Additionally, authentic simulators are needed for further development of new endovascular devices and procedures. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151519DOI Listing

Definition of a drilling protocol for mini dental implants in different bone qualities.

Ann Anat 2020 Apr 15;231:151511. Epub 2020 Apr 15.

Department of Prosthodontics, Gerodontology and Biomaterials, University of Greifswald, Greifswald, Germany.

Mini dental implants (MDI) have proven to be a good alternative of the conventional implants to support lower overdentures in elderly edentulous patients with narrow residual ridge. The aim of the present study was to define drilling protocols for each diameter of the MDI in each bone quality. The number and the diameter of the drilling bur and the drilling depth was investigated. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151511DOI Listing

Corrigendum to "The osteocyte: A multifunctional cell within the bone" [Ann. Anat. 227 (2020) PMID: 31563568].

Ann Anat 2020 07 13;230:151510. Epub 2020 Apr 13.

Dental Clinical Specialities Department, Faculty of Dentistry, Complutense University, Madrid, Spain. Electronic address:

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http://dx.doi.org/10.1016/j.aanat.2020.151510DOI Listing

Impact of the endocannabinoid system on murine cranial and alveolar bone phenotype.

Ann Anat 2020 Jul 30;230:151516. Epub 2020 Mar 30.

Department of Orthodontics, Medical Faculty, University of Bonn, Welschnonnenstr.17, D-53111 Bonn, Germany. Electronic address:

Purpose: The endocannabionoid signaling system has been demonstrated to be present in the skeleton, with involvement in the regulation of skeletal homeostasis. However, investigations substantiating these findings in cranial and alveolar bones are missing to date. The aim of our study was to investigate a potential impact of the endocannabinoid system on cranial and alveolar bone structures and phenotypes. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151516DOI Listing

Anatomical and radiological features of the bone organization of the anterior part of the mandible.

Ann Anat 2020 Mar 30;231:151512. Epub 2020 Mar 30.

Sechenov University, Department of Operative Surgery and Topographic Anatomy, Moscow, Russia. Electronic address:

Background: The classical anatomical representation of the lingual relief of the mental region of the mandible reflects the presence of geniohyoid as well as genioglossus attachment areas, which are divided into two or single areas. The International Anatomical Terminology (contains references to the presence of upper and lower spinae mentales, but the terminology does not reflect the content of these structures. The aim of this study was to examine and classify the lingual canals of the mental region. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151512DOI Listing

Immunolocalization of corneous beta proteins of the Epidermal Differentiation Complex in the developing claw of the alligator.

Authors:
Lorenzo Alibardi

Ann Anat 2020 Mar 27;231:151513. Epub 2020 Mar 27.

Comparative Histolab Padova and Department of Biology, University of Bologna, Italy. Electronic address:

Knowledge on the sharpness, mechanical and hydration resistance of the corneous material of claws requires information on its constituent proteins. The present immunohistochemical study has localized some of the main corneous beta proteins (CBPs, formerly termed beta-keratins) indicated to be present in alligator claws only by genomic data. Using specific antibodies we show the immunolocalization of representative claws CBPs of the Epidermal Differentiation Complex (Beta A1 group) during late stages of claw development in alligator. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151513DOI Listing

The lingual foramina, a potential risk in oral surgery. A retrospective analysis of location and anatomic variability.

Ann Anat 2020 Mar 27;231:151515. Epub 2020 Mar 27.

University of Greifswald, Rotgerberstraße 8, 17475 Greifswald, Germany; Private Practice, Im Hainsfeld 29, 51597 Morsbach, Germany. Electronic address:

Objective: This study evaluates the mandibular lingual foramina (LF) using computed tomographic imaging data from a large Central European cohort, focusing on the most relevant anatomical parameters. We aimed to examine whether there are differences in key parameters between ethnic groups, or based on age and gender. Additionally, we analyze the potential effect of tooth loss on the LF and discuss risk management options before and during surgery. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151515DOI Listing

A novel serum-free medium for the isolation, expansion and maintenance of stemness and tissue-specific markers of primary human periodontal ligament cells.

Ann Anat 2020 Mar 27;231:151517. Epub 2020 Mar 27.

Department of Orthodontics, Medical Faculty, University of Bonn, 53111 Bonn, Germany. Electronic address:

Purpose: Periodontal ligament (PDL) cell cultures are classically maintained in serum-containing media. However, unwanted side-effects of these conditions on cellular and molecular characteristics demand a serum-free alternative. Even though these limitations are well known and efforts for the development of adequate serum-free alternatives have been made, these approaches for replacement remained unsuccessful so far. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151517DOI Listing

Replantation of two avulsed teeth after 1 h of storage in adverse extraoral dry conditions: A thought-provoking outcome after a 15-month follow-up.

Ann Anat 2020 Mar 27;231:151514. Epub 2020 Mar 27.

Dental Clinic of Minhang District, Shanghai, 201107, China; Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200031, China. Electronic address:

This article reports a clinical case of an 8-year-old boy who sustained avulsion of the maxillary right central incisor and the maxillary left lateral incisor. The avulsed teeth were kept in adverse extraoral dry conditions for 1 h from the moment of trauma until their replantation. The prognosis of tooth replantation is dependent on multiple factors such as methods of teeth storage in vitro, endodontic intervention, extra-oral time, and type of retention employed. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151514DOI Listing

Soft tissue augmentation around dental implants with connective tissue graft (CTG) and xenogenic collagen matrix (XCM). 1-year randomized control trail.

Ann Anat 2020 Jul 20;230:151484. Epub 2020 Mar 20.

Dental Surgery Department, Uniwersytet Medyczny im Piastow Slaskich we Wroclawiu, ul. Krakowska 26, 50-425 Wroclaw, 50413 Wroclaw, Poland.

Background: The anatomy of soft tissues around dental implants is extremely important to prevent inflammatory periimplant diseases and ensure healthy, stable and long-term survival of a dental implant. Various methods and materials for increasing the physiological thickness of tissues have been described including connective tissue graft (CTG) and xenogenic collagen matrix (XCM). While assessing various materials it is necessary to establish objective measurement method to determine the minimum amount of tissue thickness to maintain a stable level of bone around the implant. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151484DOI Listing

Quantitative shape analysis of the deltoid tuberosity of modern humans (Homo sapiens) and common chimpanzees (Pan troglodytes).

Ann Anat 2020 Jul 12;230:151505. Epub 2020 Mar 12.

Unit of Human Anatomy and Embryology, University of Barcelona, C/Casanova 143, 08036 Barcelona, Spain. Electronic address:

Purpose: To identify anatomical differences in the deltoid tuberosity of Homo sapiens and Pan troglodytes, potentially relating to the different uses of the forelimb in these two phylogenetically related species.

Basic Procedures: We have used three-dimensional geometric morphometrics (3D GM) to analyze the deltoid tuberosity of scanned humeri from 30 H. sapiens and 27 P. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151505DOI Listing

Comparative anatomy of the fin muscles of non-sarcopterygian fishes, with notes on homology and evolution.

Ann Anat 2020 Jul 12;230:151507. Epub 2020 Mar 12.

Department of Anatomy, Howard University College of Medicine, 520 W Street NW, 20059 Washington, DC, USA. Electronic address:

Limited gross anatomical information about the muscles of fins, in particular those of the median fins, creates substantial gaps in the comparative anatomy, homologies, and evolution of these muscles across fishes. The scarcity of data also makes it difficult to interpret results obtained in developmental studies done in model organisms, such as zebrafish. To overcome these gaps, we provide descriptions of the configuration of all appendicular muscles of Amia, median fins of Polypterus, and the dorsal and anal fins of Lepisosteus and Chondrostei. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151507DOI Listing

Proposal for a new classification of plantaris muscle origin and its potential effect on the knee joint.

Ann Anat 2020 Mar 12;231:151506. Epub 2020 Mar 12.

Department of Normal and Clinical Anatomy, Medical University of Lodz, Poland.

Purpose: The plantaris muscle (PM) is typically characterized by a short, slim and spindle-shaped muscle belly and long, thin tendon. It is situated posterior to the popliteal muscle, and anterior to the lateral head of the gastrocnemius muscle (GM). Little information exists regarding the high variability of origin of the PM. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151506DOI Listing

Stereological study of the placental structure in abortion-prone mice model (CBA/J×DBA/2J).

Ann Anat 2020 Jul 12;230:151508. Epub 2020 Mar 12.

Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran; Infertility Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. Electronic address:

Recurrent spontaneous abortion (RSA) is an important reproductive health issue defined as the loss of two or more consecutive pregnancies before the 20th week of gestation, affecting 2-5% of couples. This study aimed to evaluate the volume, number of cells, and length of the vessels in the placenta in normal and abortion-prone (AP) pregnant mice on gestational day (gd) 13.5. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151508DOI Listing

Intramuscular innervation of plantaris muscle evaluated using a modified Sihler's staining protocol - Proposal for a new classification.

Ann Anat 2020 Jul 12;230:151504. Epub 2020 Mar 12.

Department of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of Lodz, Poland.

Purpose: The plantaris muscle is a morphologically variable structure with regard to both its origin and insertion, and the course of the tendon. We here determined the pattern of branching and distribution of intramuscular nerves of the plantaris muscle to determine its usability for autologous transplantation. No information exists on the innervation of the plantaris muscle using Sihler's staining technique, and hence its intramuscular nerves. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151504DOI Listing

Surface bio-functionalization using plasma of argon could alter microbiological and topographic surface analysis of dental implants?

Ann Anat 2020 Jul 9;230:151489. Epub 2020 Mar 9.

University of Turin, Italy. Electronic address:

Background: Plasma of argon was demonstrated to improve protein and cell adhesion on implant surface. On the other hand, increased surface energy and hydrophilicity could potentially amplify the risks of implant surface contamination during clinical phases, risks that have not yet been evaluated in Literature. The aim of the present in vitro study was to verify if Plasma treatment could alter the implant surface characteristics and its ability to remain sterile. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151489DOI Listing
July 2020
2.075 Impact Factor

Effect of thyroxin on cell morphology and hormone secretion of pituitary grafts in rats.

Ann Anat 2020 Jul 4;230:151486. Epub 2020 Mar 4.

Department of Laboratory Medicine, Division of Pathology, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada. Electronic address:

Introduction: Growth hormone and prolactin secretion is affected by thyroid hormones. To see if this influence is subsidiary to the hyptothalamus, we investigated the effects of thyroxin (T4) on hormone secretion and histology of sellar pituitaries and pituitary grafts detached from the hypothalamus (autografted or allografted under the kidney capsule).

Materials And Methods: Male Wistar rats were divided into eight groups: control, thyroidectomised, pituitary autografted, pituitary allografted, and four additional groups that were injected with T4 for two weeks, starting four weeks after surgery. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151486DOI Listing

The lymphangiogenic and hemangiogenic privilege of the human sclera.

Ann Anat 2020 Jul 28;230:151485. Epub 2020 Feb 28.

Department of Ophthalmology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Center for Integrated Oncology (CIO) Aachen - Bonn - Cologne - Düsseldorf, Cologne, Germany. Electronic address:

Purpose: Most organs of the human body are supplied with a dense network of blood and lymphatic vessels. However, some tissues are either hypovascular or completely devoid of vessels for proper function, such as the ocular tissues sclera and cornea, cartilage and tendons. Since many pathological conditions are affecting the human sclera, this review is focussing on the lymphangiogenic and hemangiogenic privilege in the human sclera. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151485DOI Listing

The adrenal cortex after estradiol or daidzein application in a rat model of the andropause: Structural and hormonal study.

Ann Anat 2020 Jul 28;230:151487. Epub 2020 Feb 28.

Department of Cytology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia.

Introduction And Aim: Daidzein application may represent an effective and less harmful alternative to indicated, classical estrogenization of ageing men. The aim of this study was to perform structural and hormonal analysis of the adrenal cortex, after estradiol or daidzein supplementation in a rat model of the andropause.

Material And Methods: Middle-aged Wistar rats were divided into sham operated (SO; n = 8), orchidectomized (Orx; n = 8), estradiol treated orchidectomized (Orx + E; n = 8) and daidzein treated orchidectomized (Orx + D; n = 8) groups. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151487DOI Listing

Nameless in anatomy, but famous among surgeons: The so called "deltotrapezoid fascia".

Ann Anat 2020 Feb 28;231:151488. Epub 2020 Feb 28.

Institute of Anatomy, University of Leipzig, Leipzig, Germany. Electronic address:

Acute dislocation of the acromioclavicular joint (AC-joint) often leads to disruption of the "deltotrapezoid fascia", a common aponeurosis of the deltoid and the trapezoid muscles. Various studies demonstrated that its reconstruction is crucial for functional recovery. Textbooks of anatomy, however, fail to mention this prominent structure that is also not listed in the Terminologia Anatomica provided by the Federative Committee on Anatomical Terminology (FCAT). Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151488DOI Listing
February 2020

Morphogenesis of the ventral pancreas anlagen is influenced by the SMA branching pattern.

Ann Anat 2020 May 14;229:151481. Epub 2020 Feb 14.

Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan. Electronic address:

Developmentally, the uncinate process of the pancreas is derived from the ventral pancreatic anlagen, supplied by the superior mesenteric artery (SMA), and contains pancreatic polypeptide (PP)-rich islets of Langerhans. In contrast, the other parts of the pancreas originate from the dorsal anlagen supplied by the celiac system and contain PP-poor islets. This study was performed to investigate whether morphogenesis of the ventral pancreas anlagen is associated with the pattern of SMA branching. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151481DOI Listing
May 2020
2.075 Impact Factor

Who is willing to donate their bodies in China? Perceptions, attitudes and influencing factors among citizens of Changsha.

Ann Anat 2020 May 13;229:151483. Epub 2020 Feb 13.

Department of Human Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan, China. Electronic address:

Body donation has far-reaching significance for modern medical research and education. However, body donation in China lags far behind the demand. To assess the perception and attitude toward body donation, a survey of 2535 community residents was conducted in Changsha. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151483DOI Listing
May 2020
2.075 Impact Factor

Morphological differences between regenerating salivary glands after salivary gland duct ligation and embryonic salivary glands.

Ann Anat 2020 May 13;229:151482. Epub 2020 Feb 13.

Department of Oral-facial Disorders, Osaka University Graduate School of Dentistry, Osaka, Japan. Electronic address:

Background: Most animals and organs have regenerative capabilities. Whether regeneration is a developmental process or a distinct phenomenon that is independent of development is debatable.

Method: We examined the differences between developing and regenerating salivary glands using duct-ligation models. Read More

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http://dx.doi.org/10.1016/j.aanat.2020.151482DOI Listing