Publications by authors named "Amir Yavari"

Background: The aim of the study was to identify health concerns of veterans with high-level lower extremity amputations.

Methods: Through a cross-sectional study, general practitioners, an orthopedic specialist, psychologists, psychiatrists, physiotherapist and prosthetists examined 100 veterans using a short-form health-related quality of life questionnaire (SF-36) that assessed their ability to perform activities of daily living (ADL), instrumental activities of daily living (IADL) and life satisfaction (SWLS) after hip disarticulation or hemi-pelvectomy amputations. The assessment tool was designed to gather statistically useful information about their health needs.

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Objective: The aim of this study was to document long-term symptoms and functional results following war-related knee disarticulation, trans-femoral amputation, and hip disarticulation.

Methods: An observational cross-sectional study was conducted in a 7-day recreational camp in Iran. One thousand patients with unilateral hip disarticulation, trans-femoral amputation and knee disarticulation due to war-related injuries were invited to undergo a thorough physical examination.

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Background: The ankle-foot injuries are among the war-related injuries that cause many serious secondary problems for a lifetime. This nationwide study aimed to assess health-related quality of life and the ability to perform activities of daily living in veterans with ankle-foot injuries due to the Iran-Iraq war.

Methods: A total of 1079 veterans with ankle-foot injuries were enrolled in a cross-sectional study from 2014 to 2016.

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Background: Despite landmine-risk education programs and extensive demining activities on the Western border of Iran, landmines and unexploded ordnance (UXOs) still cause civilian and child casualties three decades after the Iraq-Iran war (1980-1988). The objective of this study was to understand the epidemiological patterns and risk factors of injury in child casualties of landmines and UXOs in Western and Southwestern Iran.

Methods: Children who were 18 years old or younger at the time of study and who sustained injuries from landmines and UXOs were identified through a search at the Iranian National Veterans Registry.

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Adequate quality and quantity of soft tissue plays an integral part in the esthetic outcome of dental implants. Adequate band of attached tissue decreases the incidence of mucositis and improves hygiene around implants. This article discusses a variety of techniques for soft tissue augmentation.

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The binding of Hedgehog (Hh) to its receptor Patched causes derepression of Smoothened (Smo), resulting in the activation of the Hh pathway. Here, we show that Smo activation is dependent on the levels of the phospholipid phosphatidylinositol-4 phosphate (PI4P). Loss of STT4 kinase, which is required for the generation of PI4P, exhibits hh loss-of-function phenotypes, whereas loss of Sac1 phosphatase, which is required for the degradation of PI4P, results in hh gain-of-function phenotypes in multiple settings during Drosophila development.

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Osteomyelitis of the jaws following dental treatment is a rare condition which usually occurs in immuno-compromised patients both locally and generally. A case is presented with the alveolar bone necrosis resulting from leakage of an arsenical devitalizing paste into the periodontium. The treatment procedures and the outcomes are discussed in this article.

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During electron transport, the mitochondrion generates ATP and reactive oxygen species (ROS), a group of partially reduced and highly reactive metabolites of oxygen. In this in vivo genetic analysis in Drosophila melanogaster, we establish that disruption of complex I of the mitochondrial electron transport chain specifically retards the cell cycle during the G1-S transition. The mechanism involves a specific signaling cascade initiated by ROS and transduced by ASK-1, JNK, FOXO and the Drosophila p27 homolog, Dacapo.

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One of the most important aspects in surgery is the healing process after the periapical surgery. Past studies have shown occasional encounters with vital root resection and have noted varying degrees of pulpal response after root resection in periodontal disease. The purpose of this investigation was to observe the pulpal and periapical responses to intentional apical vital root transection in one root of multirooted teeth of German-Canadian dogs over a 6-month postoperative period.

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Using a large consortium of undergraduate students in an organized program at the University of California, Los Angeles (UCLA), we have undertaken a functional genomic screen in the Drosophila eye. In addition to the educational value of discovery-based learning, this article presents the first comprehensive genomewide analysis of essential genes involved in eye development. The data reveal the surprising result that the X chromosome has almost twice the frequency of essential genes involved in eye development as that found on the autosomes.

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The purpose of this study was to compare the biocompatibility of a new experimental root-end filling material, "Cold Ceramic" (CC), with mineral trioxide aggregate (MTA) in rats. After anaesthetising 10 rats and raising tissue flaps, tablets of the material were placed subcutaneously. Five rats were followed for seven days and five for 30 days.

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How can you combine professional-quality research with discovery-based undergraduate education? The UCLA Undergraduate Consortium for Functional Genomics provides the answer

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