scholarly journals Metformin and tBHQ Treatment Combined with an Exercise Regime Prevents Osteosarcopenic Obesity in Middle-Aged Wistar Female Rats

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Rafael Toledo-Pérez ◽  
Stefanie Paola Lopéz-Cervantes ◽  
David Hernández-Álvarez ◽  
Beatriz Mena-Montes ◽  
Gibran Pedraza-Vázquez ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Adipose Tissue ◽  
Muscle Mass ◽  
Fiber Quality ◽  
Combined Treatment ◽  
Stress Generation ◽  
Female Rats ◽  
Middle Aged ◽  
Mineral Density ◽  
Osteosarcopenic Obesity

Osteosarcopenic obesity (OSO) is characterized by bone density, mass, and muscle strength loss, in conjunction with adipose tissue increase. OSO impairs physical activity and mobility, provoking autonomy loss; also, it is known that augmenting body fat in the elderly decreases life expectancy. The main factors influencing this health deterioration are the inflammatory environment induced by adipose tissue and its infiltration into muscle tissue, which leads to oxidative stress generation. Currently, there are several treatments to delay OSO, among which exercise training stands out because it improves muscle fiber quality and quantity and decreases adipose tissue. We have recently demonstrated that the combined treatment between moderate exercise and metformin slows sarcopenia’s onset by a mechanism that includes adipose reduction and REDOX regulation. On the other hand, tert-butylhydroquinone (tBHQ) is a well-known antioxidant that counteracts oxidative stress. Therefore, to slow down obesity’s harmful effects on muscle mass and bone mineral density, we performed different interventions, including combining a Fartlek-type exercise routine with metformin and tBHQ administration, in a model of middle-aged female Wistar rats with obesity induced with a hypercaloric diet. Our results showed that the combined exercise-metformin-tBHQ treatment increased muscle mass and strength, decreased body weight, body mass index, and fat percentage, and improved redox status, thus increasing animal survival.

scholarly journals AB0176 PATHOLOGICAL PHENOTYPES OF BODY COMPOSITION IN PATIENTS WITH RHEUMATOID ARTHRITIS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1114.1-1114
Author(s):  
A. Feklistov ◽  
N. Toroptsova ◽  
O. Nikitinskaya ◽  
A. Efremova ◽  
N. Demin
Keyword(s):  
Rheumatoid Arthritis ◽  
Body Composition ◽  
Adipose Tissue ◽  
Muscle Mass ◽  
The Body ◽  
Mineral Density ◽  
X Ray ◽  
Osteosarcopenic Obesity ◽  
Proximal Thigh ◽  
Appendicular Muscle Mass

Background:Inflammation, decreased physical activity, hormonal disorders, and the use of glucocorticoids lead to changes in the composition of the body in rheumatoid arthritis (RA). Various combinations of decreased muscle and bone mass and increased adipose tissue have led to the release of various pathological phenotypes of the composition of the body.Objectives:To determine the frequency of pathological phenotypes of body composition in patients with RA.Methods:The study included 79 women with RA, with a median age of 60 y.o. [55; 65]. 92% of the women were postmenopausal. The median duration of the disease was 9 years [3; 11]. Basic anti-inflammatory therapy was received by 81% of patients. Methotrexate was used most often as the basic therapy – in 52% of cases. 49% of patients were treated with glucocorticoid drugs. All patients underwent dual-energy X-ray absorptiometry. The mineral density of the tissues was determined in the standard measurement areas - the spine and the proximal thigh, and the content of muscle and adipose tissue was analyzed. We calculated appendicular muscle mass (AMM), which is the sum of upper and lower limb muscle mass and appendicular muscle index (AMI), the ratio of appendicular muscle mass to the square of height. AMM< 15 kg, AMI < 6 kg / m2 corresponds to sarcopenia.Results:The average AMM was 17.8±3.0 kg. 18% patients had AMM <15 kg / m2. The average AMI was 6.8±1.0 kg / m2. 25% patients had AMI < 6 kg/m2. The average body mass index (BMI) was 27.6±4.8 kg/m2. 37% patients were overweight (25≤ BMI <29.9 kg/m2), 28% of women had a BMI corresponding to obesity. The average fat content was 28.2 kg. 71% of women had an obesity, according to X-ray absorptiometry, which is 2.5 times higher than the number of cases of obesity detected by BMI. A decrease a bone mineral density (BMD) was found in 73% of women, including osteoporosis in 25%. The most frequent phenotype was osteopenic obesity (Table 1), which was detected in almost 40% of patients. Isolated osteoporosis (16.5%) and obesity (17.7%) and osteosarcopenic obesity (16.5%) were found with approximately the same frequency. Osteosarcopenia was found in 9% of patients. In 4%, no changes in the compositional composition of the human body were detected.Table 1.Pathological phenotypes of body compositionPathological phenotypes of body compositionn=79Osteoporosis, n (%)13 (16,5)Obesity, n (%)14 (17,7)Osteosarcopenia, n (%)7 (8,9)Osteopenic obesity, n (%)29 (36,7)Osteosarcopenic obesity, n (%)13 (16,5)Conclusion:The overall frequency of pathological phenotypes of body composition was high and amounted to 96.2% in women with RA. The most common pathological phenotype was an osteopenic obesity characterized by a decrease in BMD and an increase in fat mass.Disclosure of Interests:None declared

scholarly journals Agomelatine, A Potential Multi-Target Treatment Alternative for Insomnia, Depression, and Osteoporosis in Postmenopausal Women: A Hypothetical Model

2021 ◽  
Vol 12 ◽  
Author(s):  
Ahmet Yardimci ◽  
Mehmet Ridvan Ozdede ◽  
Haluk Kelestimur
Keyword(s):  
Postmenopausal Osteoporosis ◽  
Combined Treatment ◽  
Common Symptom ◽  
Middle Aged ◽  
Mineral Density ◽  
Novel Treatments ◽  
Prevention Of Osteoporosis ◽  
Common Etiology ◽  
Target Treatment ◽  
Insomnia Treatment

Insomnia, which is associated with menopausal depression, is a common symptom of menopause. Both symptoms have a common etiology, and can affect each other significantly. Pharmacological interventions, including hypnotics and antidepressants, and non-pharmacological therapies are generally administered in clinical practice for insomnia treatment. As another menopausal disorder, osteoporosis is described as a disease of low bone mineral density (BMD), affecting nearly 200 million women worldwide. Postmenopausal osteoporosis is common among middle-aged women. Since postmenopausal osteoporosis mainly results from low estrogen levels, menopausal hormone therapy (HT) is considered the first-line option for the prevention of osteoporosis during the menopausal period. However, almost no study has evaluated novel treatments for the combined prevention of insomnia, depression, and osteoporosis. Hence, it is necessary to develop new multi-target strategies for the treatment of these disorders to improve the quality of life during this vulnerable period. Melatonin is the major regulator of sleep, and it has been suggested to be safe and effective for bone loss therapy by MT-2 receptor activity. As a result, we hypothesize that agomelatine, an MT-1 and MT-2 receptor agonist and 5-HT2C receptor antagonist, holds promise in the combined treatment of insomnia, depression, and osteoporosis in middle-aged women during menopause.

Soy isoflavones protect against oxidative stress and diminish apoptosis in ovary of middle-aged female rats

2019 ◽  
Vol 35 (7) ◽  
pp. 586-590 ◽  
Author(s):  
C. P. Teixeira ◽  
R. Florencio-Silva ◽  
G. R. S. Sasso ◽  
A. A. F. Carbonel ◽  
R. S. Simões ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Soy Isoflavones ◽  
Female Rats ◽  
Middle Aged

scholarly journals Concurrent losses of skeletal muscle mass, adipose tissue and bone mineral density during bevacizumab / cytotoxic chemotherapy treatment for metastatic colorectal cancer

2020 ◽  
Vol 39 (11) ◽  
pp. 3319-3330
Author(s):  
Adeline Dolly ◽  
Thierry Lecomte ◽  
Olivier Bouché ◽  
Christophe Borg ◽  
Eric Terrebonne ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Bone Mineral Density ◽  
Skeletal Muscle ◽  
Adipose Tissue ◽  
Metastatic Colorectal Cancer ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Cytotoxic Chemotherapy ◽  
Chemotherapy Treatment ◽  
Mineral Density

High-impact exercise strengthens bone in osteopenic ovariectomized rats with the same outcome as Sham rats

2003 ◽  
Vol 95 (3) ◽  
pp. 1032-1037 ◽  
Author(s):  
Akiko Honda ◽  
Naota Sogo ◽  
Seigo Nagasawa ◽  
Takuya Shimizu ◽  
Yoshihisa Umemura
Keyword(s):  
Bone Mass ◽  
Female Rats ◽  
Ovariectomized Rats ◽  
Middle Aged ◽  
Mineral Density ◽  
Beneficial Effects ◽  
Ovx Rats ◽  
Jump Exercise ◽  
Body Weights ◽  
The Right

The effect of jump exercise on middle-aged osteopenic rats was investigated. Forty-two 9-mo-old female rats were either sham-operated (Sham) or ovariectomized (OVX). Three months after surgery, the rats were divided into the following groups: Sham sedentary, Sham exercised, OVX sedentary, and OVX exercised. Rats in the exercise groups jumped 10 times/day, 5 days/wk, for 8 wk, with a jumping height of 40 cm. Less than 1 min was required for the jump training. After the experiment, the right tibia and femur were dissected, and blood was obtained from each rat. OVX rats were observed to have increased body weights and decreased bone mass in their tibiae and femurs. Jump-exercised rats, on the other hand, had significantly increased tibial bone mass, strength, and cortical areas. The bone mass and strength of OVX exercised rats increased to approximately the same extent as Sham exercised rats, despite estrogen deficiency or osteopenia. Our data suggest that jump exercise has beneficial effects on lower limb bone mass, strength, bone mineral density, and morphometry in middle-aged osteopenic rats, as well as in Sham rats.

scholarly journals Muscle mass, strength, bone mineral density and vascular function in middle-aged people living with HIV vs. age-matched and older controls

2021 ◽  
pp. 101654
Author(s):  
Karynne Grutter Lopes ◽  
Paulo Farinatti ◽  
Gabriella de Oliveira Lopes ◽  
Gabriela Andrade Paz ◽  
DanielAlexandre Bottino ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Muscle Mass ◽  
Bone Mineral ◽  
Vascular Function ◽  
People Living With Hiv ◽  
Middle Aged ◽  
Mineral Density ◽  
Aged People ◽  
Living With Hiv

scholarly journals Long-term silk peptide intake promotes skeletal muscle mass, reduces inflammation, and modulates gut microbiota in middle-aged female rats

2021 ◽  
Vol 137 ◽  
pp. 111415
Author(s):  
Sunmin Park ◽  
Heng Yuan ◽  
Ting Zhang ◽  
Xuangao Wu ◽  
Shao Kai Huang ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Gut Microbiota ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Female Rats ◽  
Middle Aged ◽  
Silk Peptide

scholarly journals The Cooccurrence of Obesity, Osteoporosis, and Sarcopenia in the Ovariectomized Rat: A Study for Modeling Osteosarcopenic Obesity in Rodents

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Zahra Ezzat-Zadeh ◽  
Jeong-Su Kim ◽  
P. Bryant Chase ◽  
Bahram H. Arjmandi
Keyword(s):  
Body Composition ◽  
Muscle Mass ◽  
Wheel Running ◽  
Weight Ratio ◽  
Female Rats ◽  
Ovariectomized Rat ◽  
Type I ◽  
Mineral Density ◽  
Age Related ◽  
Wheel Running Activity

Background. Obesity, osteoporosis, and sarcopenia may individually occur due to age-related gradual alterations in body composition. This study investigates the cooccurrence of these age-related diseases in female animals with low levels of ovarian hormone in the absence of complex multifactorial process of chronological aging.Methods. Thirty-six 5- and 10-month-old female rats were chosen to model pre- and postmenopausal women, respectively. Rats were divided into three treatment groups in each age category—sham, ovariectomized (ovx), and ovx + E2(17β-estradiol, 10 μg/kg)—and were pair-fed. Volunteer wheel running activity, body composition, bone microstructure, serum C-telopeptides of type I collagen, bone specific alkaline phosphatase, E2, and gastrocnemius and soleus muscles were analyzed.Results. The cooccurrence of osteoporosis, sarcopenia, and obesity was observed in the older ovx rats associated with a significant (p<0.05) increased fat mass (30%), bone loss (9.6%), decreased normalized muscle mass-to-body-weight ratio (10.5%), and a significant decrease in physical activity (57%). The ratio of tibial bone mineral density to combined muscle mass was significantly decreased in both ovx age categories.Conclusion.Ovariectomized rat could be used as an experimental model to examine the effect of loss of ovarian hormones, while controlling for energy intake and expenditure, to conduct obesity and body composition translational research in females without the confounding effect of genetic background.

scholarly journals Low Dietary n6/n3 Ratio Attenuates Changes in the NRF 2 Gene Expression, Lipid Peroxidation, and Inflammatory Markers Induced by Fructose Overconsumption in the Rat Abdominal Adipose Tissue

Antioxidants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2005
Author(s):  
Petra Roškarić ◽  
Marcela Šperanda ◽  
Tomislav Mašek ◽  
Donatella Verbanac ◽  
Kristina Starčević
Keyword(s):  
Oxidative Stress ◽  
Gene Expression ◽  
Adipose Tissue ◽  
Fatty Acid ◽  
Female Rats ◽  
Control Group ◽  
Plain Water ◽  
Low Grade ◽  
Male And Female Rats ◽  
High Fructose

The objective of this study was to examine the benefits of different n6/n3 polyunsaturated fatty acid ratios on the lipid metabolism, insulin resistance, and oxidative stress in the adipose tissue of rats fed a high-fructose diet. Male and female rats were divided into four groups: a control group (CON) (n6/n3 ratio ~7), a high-fructose group (HF) (n6/n3 ratio ~7), an N6-HF group (n6/n3 ratio ~50), and the DHA-HF group (n6/n3 ratio ~1, with the addition of docosahexaenoic (DHA) and eicosapentaenoic (EPA) acid). The CON group received plain water and the HF group received 15% fructose in their drinking water. Fructose induced an increase in the content of serum triglycerides, serum cholesterol, and HOMA-IR index. Among the fatty acids, elevated proportions of C18:1n9 and C16:1n7, as well as an increase in total monounsaturated fatty acid (MUFA), were found in the adipose tissue of the HF group. Fructose treatment also changed oxidative parameters, including a marked increase in the serum malondialdehyde (MDA) content. Meanwhile, DHA supplementation caused a significant decrease in the serum MDA concentration in comparison with the HF group. In addition, DHA/EPA supplementation attenuated oxidative stress by increasing NRF 2 gene expression. Fructose treatment also significantly decreased the adiponectin level, while DHA supplementation ameliorated it. The changes observed in this trial, including the decrease in the content of DHA and EPA, the decreased EPA/ARA ratio, and the increase in the expression of inflammatory genes, are characteristics of the low-grade inflammation caused by fructose treatment. These changes in the rat adipose tissue could be prevented by dietary intervention consisting of DHA supplementation and a low n6/n3 ratio.

Sex differences in subcutaneous adipose tissue redox homeostasis and inflammation markers in control and high-fat diet fed rats

2019 ◽  
Vol 44 (7) ◽  
pp. 720-726 ◽  
Author(s):  
Renata Prado Vasconcelos ◽  
Milena Simões Peixoto ◽  
Keciany Alves de Oliveira ◽  
Andrea Claudia Freitas Ferreira ◽  
Andrelina Noronha Coelho-de-Souza ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Adipose Tissue ◽  
High Fat Diet ◽  
Subcutaneous Adipose Tissue ◽  
Redox Homeostasis ◽  
Female Rats ◽  
Mrna Levels ◽  
High Fat ◽  
Tnf Α ◽  
Subcutaneous Adipose

The development of obesity-related metabolic disorders is more evident in male in comparison with female subjects, but the mechanisms are unknown. Several studies have shown that oxidative stress is involved in the pathophysiology of obesity, but the majority of these studies were performed with male animals. The aim of this study was to evaluate the sex-related differences in subcutaneous adipose tissue redox homeostasis and inflammation of rats chronically fed a high-fat diet. NADPH oxidase (NOX), glutathione peroxidase (GPx), superoxide dismutase (SOD), and catalase activities were evaluated in the subcutaneous adipose tissue (SC) of adult male and female rats fed either a standard chow (SCD) or a high-fat diet (HFD) for 11 weeks. NOX2 and NOX4 messenger RNA (mRNA) levels, total reduced thiols, interleukin (IL)-1β, tumor necrosis factor α (TNF-α), and IL-6 were also determined. Higher antioxidant enzyme activities and total reduced thiol levels were detected in SC of control male compared with female rats. Chronic HFD administration increased NOX activity and NOX2 and NOX4 mRNA levels and decreased SOD and GPx activities only in male animals. IL-1β, TNF-α, and IL-6 levels, as well as Adgre1, CD11b, and CD68 mRNA levels, were also higher in SC of males after HFD feeding. In SC of females, catalase activity was higher after HFD feeding. Taken together, our results show that redox homeostasis and inflammation of SC is sexually dimorphic. Furthermore, males show higher oxidative stress in SC after 11 weeks of HFD feeding owing to both increased reactive oxygen species (ROS) production through NOX2 and NOX4 and decreased ROS detoxification.

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