Bone Density of the Femur and Fiber Cross-Sectional Area and Oxidative Enzyme Activity of the Tibialis Anterior Muscle in Type II Collagen-Induced Arthritic Mice

Okiura, Tomonori; Nagatomo, Fumiko; Gu, Ning; Taguchi, Yasuki; Morimatsu, Fumiki; Ishihara, Akihiko

doi:10.2170/physiolsci.rp003708

Cited by 6 publications

(10 citation statements)

References 34 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2, B1-6). These arthritic rats may undergo further changes leading to cartilage and bone destruction when studied for a prolonged period; similar results were observed in a previous study using mice with type II collagen-induced arthritis [17].…”

Section: Discussionsupporting

confidence: 88%

Effects of exposure to hyperbaric oxygen on oxidative stress in rats with type II collagen-induced arthritis

Nagatomo

Fujino

et al. 2009

Clin Exp Med

View full text Add to dashboard Cite

Arthritis was induced in 9-week-old female Dark Agouti rats by injecting type II collagen. Serum levels of the derivatives of reactive oxygen metabolites (dROMs), which are oxidative stress markers, and C-reactive protein (CRP) in arthritic rats that were exposed to a pressure of 1.25 atmospheres absolute and an oxygen concentration of 36% for 3 weeks (arthritis + HBO group) were compared to those of control rats (control group) and arthritic rats that were not exposed to hyperbaric oxygen (arthritis group). The body weights of the arthritis and arthritis + HBO groups were lower than that of the control group, whereas no difference in the body weight was observed between the arthritis and arthritis + HBO groups. The serum levels of dROMs and CRP in the arthritis group were higher than those in the control and arthritis + HBO groups. No difference in the serum level of CRP was observed between the control and arthritis + HBO groups. These results indicate that the conditions of hyperbaric oxygen exposure used in this study are effective for reducing the levels of reactive oxygen species, which are overproduced during arthritis.

show abstract

Section: Discussionsupporting

confidence: 88%

Effects of exposure to hyperbaric oxygen on oxidative stress in rats with type II collagen-induced arthritis

Nagatomo

Fujino

et al. 2009

Clin Exp Med

View full text Add to dashboard Cite

show abstract

“…To the best of our knowledge, this is the first study to evaluate the time course of the occurrence of muscle atrophy, defined as decreased muscle fiber cross‐sectional area, during the development of chronic arthritis in an animal model. This muscle wasting caused by chronic disease has been demonstrated in several studies , , , and additional investigations on its molecular mechanisms have been reported , –. There are evidences of the involvement of the ubiquitin–proteasome pathway, as indicated by increased expression of MuRF‐1 and MAFbx , , and downregulation of growth factors .…”

Section: Discussionmentioning

confidence: 89%

Temporal development of muscle atrophy in murine model of arthritis is related to disease severity

Filippin

Teixeira

Viacava

et al. 2013

J cachexia sarcopenia muscle

View full text Add to dashboard Cite

BackgroundRheumatoid arthritis (RA) is an inflammatory autoimmune disease of unknown etiology, affecting mainly the joint but also other tissues. RA patients usually present weakness and muscle atrophy, nonarticular manifestations of the disease. Although causing great impact, the understanding of muscle atrophy, its development, and the mechanisms involved is still very limited. The objective of this study is to evaluate the development of muscle atrophy in skeletal muscle of a murine model of arthritis.MethodsThe experimental murine model of collagen-induced arthritis (CIA) was used. DBA/1J mice were randomly divided into three groups: control (CO, n = 25), sham arthritis (SA, n = 25), and arthritis (CIA, n = 28), analyzed in different time points: 25, 35, and 45 days after the induction of arthritis. The arthritis development was followed by clinical scores and hind paw edema three times a week. The spontaneous exploratory locomotion and weight were evaluated weekly. In all time points, serum was collected before the death of the animals for cytokine analysis, and myofiber cross-sectional areas (CSA) of gastrocnemius (GA) and tibialis anterior (TA) skeletal muscles were evaluated.ResultsThe clinical parameters of arthritis progressively increased in CIA in all experimental times, demonstrating the greatest difference from other groups at 45 days after induction (clinical score: CO, 00 ± 00; SA, 1.00 ± 0.14; CIA, 3.28 ± 0.41 p > 0.05). The CIA animals had lower weights during all the experimentation periods with a difference of 6 % from CO at 45 days (p > 0.05). CIA animals also demonstrated progressive decrease in distance walked, with a reduction of 54 % in 35 and 74 % at 45 days. Cytokine analysis identified significant increase in IL-6 serum levels in CIA than CO and SA in all experimental times. CSA of the myofiber of GA and TA was decreased 26 and 31 % (p > 0.05) in CIA in 45 days after the induction of disease, respectively. There was significant and inverse correlation between the disease clinical score and myofiber CSA in 45 days (GA: r = −0.71; p = 0.021).ConclusionOur results point to a progressive development of muscle wasting, with premature onset arthritis. These observations are relevant to understand the development of muscle loss, as well as for the design of future studies trying to understand the mechanisms involved in muscle wasting. As far as we are concerned, this is the first study to evaluate the relation between disease score and muscle atrophy in a model of arthritis.Electronic supplementary materialThe online version of this article (doi:10.1007/s13539-013-0102-1) contains supplementary material, which is available to authorized users.

show abstract

“…Similar findings have been observed in animal models with unloading-and disuse-induced muscle atrophy. For example, a previous study 28) observed that the decreased tibialis anterior muscle weight, muscle fiber atrophy, and lower femur bone density found in type collagen-induced arthritic mice were related to their low motor activities.…”

Section: Discussionmentioning

confidence: 99%

Skeletal Muscle Characteristics of Rats with Obesity, Diabetes, Hypertension, and Hyperlipidemia

Nagatomo

Fujino

et al. 2009

JAT

Self Cite

View full text Add to dashboard Cite

Aim: Data on the skeletal muscle characteristics of patients and animals with lifestyle-related diseases are limited. We investigated mRNA expression levels and fiber profiles in the skeletal muscles of rats with obesity, diabetes, hypertension, and/or hyperlipidemia. Methods: The mRNA expression levels of peroxisome proliferator-activated receptors (PPAR and PPAR / ), PPAR coactivator-1 (PGC-1 ), stearoyl-CoA desaturase-1 (SCD-1), carnitine palmitoyl-transferase (CPT ), medium-chain acyl-CoA dehydrogenase (MCAD), and mitochondrial transcriptional factor A (TFAM) in the soleus muscles were compared among 15-week-old control (WR), type 2 diabetic (GK), hypertensive (SHR), and hyperlipidemic (CP) rats. The fiber profiles in the soleus muscles of these rats were also determined. Results: GK rats showed lower PPAR / , PGC-1 , and MCAD expression levels than WR rats. SHR rats showed higher PPAR and MCAD and lower PPAR / expression levels than WR rats. CP rats showed lower PPAR / and higher SCD-1 expression levels than WR rats. The muscles of WR, SHR, and CP rats had low-oxidative type and high-oxidative type A and type C fibers, whereas the muscle of GK rats had only low-oxidative type fibers. Conclusions:The skeletal muscles of rats with lifestyle-related diseases have unique mRNA expression patterns and fiber profiles depending on the type of disease. For example, the lower PGC-1 and MCAD mRNA expression levels in the soleus muscles of type 2 diabetic rats are associated with the presence of only low-oxidative type fibers in the muscle. J Atheroscler Thromb, 2009; 16:576-585.Key words; Lifestyle-related disease, mRNA expression level, Muscle fiber type bility of ATPase at acidic pH. Type A fibers become ATPase negative at a faster rate than type B fibers when the acidity of the preincubation medium increases. Type C fibers have been identified in skeletal muscles, particularly in the soleus muscle of rats; these fibers are ATPase positive, irrespective of the pH of the preincubation medium. Glycolytic enzyme activity is higher in type A, type B, and type C fibers than in type fibers, whereas oxidative enzyme activity is higher in type , type A, and type C fibers than in type B fibers; therefore, the presence of different types of fibers correlates with the metabolic properties of individual skeletal muscles. Skeletal muscles exhibit plasticity and undergo fiber type transitions under various conditions, such as growth, aging,

show abstract

Bone Density of the Femur and Fiber Cross-Sectional Area and Oxidative Enzyme Activity of the Tibialis Anterior Muscle in Type II Collagen-Induced Arthritic Mice

Cited by 6 publications

References 34 publications

Effects of exposure to hyperbaric oxygen on oxidative stress in rats with type II collagen-induced arthritis

Effects of exposure to hyperbaric oxygen on oxidative stress in rats with type II collagen-induced arthritis

Temporal development of muscle atrophy in murine model of arthritis is related to disease severity

Skeletal Muscle Characteristics of Rats with Obesity, Diabetes, Hypertension, and Hyperlipidemia

Contact Info

Product

Resources

About