scholarly journals The diving mouthpiece and the conditions of the temporomandibular joints. Preliminary study

2016 ◽  
Vol 55 (2) ◽  
Author(s):  
Karolina Walczyńska – Dragon ◽  
Janina Walczyńska ◽  
Piotr Siermontowski
Keyword(s):  
Cervical Spine ◽  
Temporomandibular Joints ◽  
Preliminary Study ◽  
Masticatory Organ

AbstractThe article presents the results of research on the effects of a long-term exposure to non-physiological location of anatomical elements of the masticatory organ in the course of diving. The said exposure is connected with the utilisation of various types of diving mouthpieces.The study was conducted on 186 professional divers manifesting various conditions occurring immediately upon diving completion and connected with the temporomandibular joints and muscles lifting the mandible. The most frequently reported pain affected the areas of cervical spine and shoulder ring, earache and reflex pain, an exhausting gritting of teeth.

Ultrastructural observations of the aorta of calves implanted with a mechanical left ventricular assist device

1990 ◽  
Vol 48 (3) ◽  
pp. 834-835
Author(s):  
J P Cassella ◽  
V Salih ◽  
T R Graham
Keyword(s):  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Left Ventricular ◽  
Aortic Tissue ◽  
Assist Device ◽  
Ventricular Assist ◽  
Transmission Electron ◽  
Left Ventricular Assist ◽  
Preliminary Study

Left ventricular assist systems are being developed for eventual long term or permanent implantation as an alternative to heart transplantation in patients unsuitable for or denied the transplant option. Evaluation of the effects of these devices upon normal physiology is required. A preliminary study was conducted to evaluate the morphology of aortic tissue from calves implanted with a pneumatic Left Ventricular Assist device-LVAD. Two 3 month old heifer calves (calf 1 and calf 2) were electively explanted after 128 days and 47 days respectively. Descending thoracic aortic tissue from both animals was removed immediately post mortem and placed into karnovsky’s fixative. The tissue was subsequently processed for transmission electron microscopy (TEM). Some aortic tissue was fixed in neutral buffered formalin and processed for routine light microscopy.

scholarly journals Partial Decellularization for Segmental Tracheal Scaffold Tissue Engineering: A Preliminary Study in Rabbits

Biomolecules ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 866
Author(s):  
Luong Huu Dang ◽  
Yuan Tseng ◽  
How Tseng ◽  
Shih-Han Hung
Keyword(s):  
Mechanical Stability ◽  
Vital Staining ◽  
Potential Method ◽  
Term Survival ◽  
Long Term Survival ◽  
Cartilage Cells ◽  
Preliminary Study ◽  
Epithelial Layers

In this study, we developed a new procedure for the rapid partial decellularization of the harvested trachea. Partial decellularization was performed using a combination of detergent and sonication to completely remove the epithelial layers outside of the cartilage ring. The post-decellularized tracheal segments were assessed with vital staining, which showed that the core cartilage cells remarkably remained intact while the cells outside of the cartilage were no longer viable. The ability of the decellularized tracheal segments to evade immune rejection was evaluated through heterotopic implantation of the segments into the chest muscle of rabbits without any immunosuppressive therapy, which demonstrated no evidence of severe rejection or tissue necrosis under H&E staining, as well as the mechanical stability under stress-pressure testing. Finally, orthotopic transplantation of partially decellularized trachea with no immunosuppression treatment resulted in 2 months of survival in two rabbits and one long-term survival (2 years) in one rabbit. Through evaluations of posttransplantation histology and endoscopy, we confirmed that our partial decellularization method could be a potential method of producing low-immunogenic cartilage scaffolds with viable, functional core cartilage cells that can achieve long-term survival after in vivo transplantation.

Long term effect of bilateral anterior elevation of occlusion on the temporomandibular joints

Oral Diseases ◽  
2021 ◽  
Author(s):  
Yuejiao Zhang ◽  
Qian Liu ◽  
Xiaojie Xu ◽  
Peng Zhou ◽  
Hongyun Zhang ◽  
...  
Keyword(s):  
Term Effect ◽  
Temporomandibular Joints ◽  
Long Term Effect

Destructive spondyloarthropathy of the cervical spine in long-term hemodialyzed patients: a five-year clinical radiological prospective study

2001 ◽  
Vol 30 (8) ◽  
pp. 431-441 ◽  
Author(s):  
A. Leone ◽  
Murali Sundaram ◽  
Alfonso Cerase ◽  
Nicola Magnavita ◽  
Luigi Tazza ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Prospective Study ◽  
Destructive Spondyloarthropathy

Combination of Methotrexate and Leflunomide Is Safe and Has Good Drug Retention Among Patients With Psoriatic Arthritis

2021 ◽  
pp. jrheum.201408
Author(s):  
Muhammad Haroon ◽  
Shabnam Batool ◽  
Sadia Asif ◽  
Farzana Hashmi ◽  
Saadat Ullah
Keyword(s):  
Cervical Spine ◽  
Psoriatic Arthritis ◽  
Musculoskeletal Disease ◽  
Sacroiliac Joints ◽  
Antirheumatic Therapy ◽  
Short Delay ◽  
Drug Retention ◽  
Immune Mediated

Psoriatic arthritis (PsA) is a potentially progressive immune-mediated musculoskeletal disease with the involvement of synovium, enthesis, and axial structures (especially the cervical spine and sacroiliac joints), along with the involvement of skin and nails. Even a short delay in the diagnosis and commencement of antirheumatic therapy can cause long-term damage and disabilities.1

scholarly journals Virtual Reality In Paraplegia: A Test Bed Applicationn

2001 ◽  
Vol 5 (1) ◽  
pp. 146-156
Author(s):  
Giuseppe Riva
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Virtual Reality ◽  
Nervous System ◽  
Design Issues ◽  
Test Bed ◽  
Design Considerations ◽  
Cord Injury ◽  
Preliminary Study

The paper presents an overview of the ergonomic/design issues of a VR-enhanced orthopaedic appliance to be used in rehabilitation of patients with Spinal Cord Injury. First, some design considerations are described and an outline of aims which the tool should pursue are given. Finally, the design issues are described focusing both on the development of a test-bed rehabilitation device and on the description of a preliminary study detailing the use of the device with a long-term SCI patient. The basis for this approach is that physical therapy and motivation are crucial for maintaining flexibility and muscle strength and for reorganizing the nervous system after SCIs.

Long-term follow-up of the progression of ossification of the posterior longitudinal ligament

2010 ◽  
Vol 12 (5) ◽  
pp. 577-579 ◽  
Author(s):  
Motoaki Murakami ◽  
Atsushi Seichi ◽  
Hirotaka Chikuda ◽  
Katsushi Takeshita ◽  
Kozo Nakamura ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Mixed Type ◽  
Posterior Longitudinal Ligament ◽  
Maturation Process ◽  
Initial Stage ◽  
Initial Symptoms ◽  
Long Term Follow Up

The authors report the case of a man with cervical ossification of the posterior longitudinal ligament (OPLL) who was observed for more than 26 years. Initial symptoms consisted of subtle numbness of the hands, and initial radiography showed small, segmental-type OPLL in the cervical spine. Lateral radiography of the cervical spine was performed every few years. Ossification accelerated for about 4 years during the follow-up. Segmental-type OPLL developed into mixed-type extensive OPLL. This case shows an accelerating maturation process of OPLL over the course of a few years. Segmental-type OPLL appears to represent an initial stage of extensive OPLL.

Sign in / Sign up

Export Citation Format

Share Document