نتایج جستجو برای: growth plate

تعداد نتایج: 884936  

Journal: :iranian journal of basic medical sciences 0
massood ezzatabadipour neuroscience research centre, kerman university of medical sciences, kerman, iran department of anatomical sciences, afzalipour school of medicine, kerman university of medical sciences, kerman, iran masoud majidi department of anatomical sciences, afzalipour school of medicine, kerman university of medical sciences, kerman, iran reza malekpour-afshar department of pathology, afzalipour school of medicine, kerman university of medical sciences, kerman, iran seyed hasan eftekharvaghefi department of anatomical sciences, afzalipour school of medicine, kerman university of medical sciences, kerman, iran seyed noureddin nematollahi-mahani department of anatomical sciences, afzalipour school of medicine, kerman university of medical sciences, kerman, iran

objective(s) studies have shown that morphine, in addition to its analgesic properties, has several effects on cell proliferation and apoptosis. there is also evidence that opioid receptors are present on chondrocytes. our main objective in the present study was to investigate the effects of morphine on rat femur growth cartilage. materials and methods this research was carried out on 18 4-week...

بزمی, مهدیه , بهنام رسولی, مرتضی , حقایقی, میترا , لاری, رویا , مهدوی شهری, ناصر ,

Background: Bone is a hard and dynamic tissue, which continually undergoes remodeling process. Longitudinal growth of bone is mediated by growth plate that is a cartilage structure at the end of long bones. During puberty, along with the closure (ossification) of growth plate, the longitudinal growth of bone will stop. Diazinon is one of the widely used organophosphorus pesticides that have bee...

2006
Andrei Chagin Lars Hagenäs Lars Sävendahl

The growth plate is a highly organized cartilage structure with a complex cellular biology. Studies have been limited by the relative lack of relevant experimental models. Thanks to new technologies, e.g. targeted deletions of genes, knowledge is rapidly expanding. The first paper selected representing the mechanism of the year describes how estradiol can rescue skeletal growth during GH resist...

2005
SUNEEL S. APTE JOHN KENWRIGHT

We studied the cellular response to physeal distraction in the growth plates of skeletally immature rabbits. We used a new method of labelling and detection of proliferating cells with bromodeoxyuridine (BUdR) and an anti-BUdR antibody. The application of an external fixator but no distraction force produced no changes in the growth plates. After five days of distraction at a maximum force of 2...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1371

the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...

Journal: :Endocrine development 2011
Julian C Lui Ola Nilsson Jeffrey Baron

Longitudinal bone growth is rapid in prenatal and early postnatal life, but then slows with age and eventually ceases. This growth deceleration is caused primarily by a decrease in chondrocyte proliferation, and is associated with other structural, functional, and molecular changes collectively termed growth plate senescence. Current evidence suggests that growth plate senescence occurs because...

Journal: :The Journal of endocrinology 2011
Patricia Forcinito Anenisia C Andrade Gabriela P Finkielstain Jeffrey Baron Ola Nilsson Julian C Lui

The mammalian growth plate undergoes programmed senescence during juvenile life, causing skeletal growth to slow with age. We previously found that hypothyroidism in rats slowed both growth plate chondrocyte proliferation and growth plate senescence, suggesting that senescence is not dependent on age per se but rather on chondrocyte proliferation. However, one alternative explanation is that th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و فرهنگ - دانشکده مهندسی عمران 1393

با توجه به استفاده روزافزون قاب های خمشی مرکب و تاثیر جزییات اتصال تیر و ستون در رفتار اتصالات ستون بتنی و تیر فولادی (rcs)، در این تحقیق به بررسی عملکرد تیر متعامد در این نوع اتصالات پرداخته شده است که بدین منظور از 25 مدل با جزییات مختلف استفاده شده است. در این مطالعه علاوه بر تاثیر تیر متعامد، سایر جزییات موجود در اتصال نیز مورد بررسی قرار گرفته است. در این راستا به بررسی برخی دیگر از جزییات...

Journal: :Frontiers in bioscience 2011
Rosa Chung Bruce K Foster Cory J Xian

The growth plate is responsible for longitudinal growth of children's long bones. However, being a cartilaginous tissue, the growth plate has a limited ability for regeneration and thus injured growth plate is often repaired by bony tissue resulting in bone growth defects of the involved limb. Understanding the pathophysiology of growth plate bony repair and developing preventative treatments r...

Journal: :Journal of cell science 1993
R J Wardale V C Duance

The collagens of growth plate and articular cartilage from 5-6 month old commercial pigs were characterised. Growth plate cartilage was found to contain less total collagen than articular cartilage as a proportion of the dry weight. Collagen types I, II, VI, IX and XI are present in both growth plate and articular cartilage whereas type X is found exclusively in growth plate cartilage. Types II...

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