Prevalence and factors associated with sarcopenia among Brazilian older adults: An exploratory network analysis.

Objectives: This study aimed to verify the prevalence of sarcopenia and its associations with sociodemographic, clinical and psychological factors in community-dwelling older adults.

Study Design: A randomized cross-sectional study was extracted from a probabilistic cluster conducted on individuals aged 65 years or older residing in the community.

Methods: Sarcopenia was defined according to the criteria of the European Working Group on Sarcopenia in Older People (EWGSOP2).

The Influence of Time on the Epidemiology and Clinical Manifestations of Behçet's Disease in Brazil.

Objective: Modifications in the severity and clinical expression of Behçet's disease (BD) have been described in some areas that are considered endemic for the disease. This study aims to evaluate the chronological changes in epidemiology and clinical characteristics of BD patients in a referral center in Brazil, which is considered a non-endemic area for the disease.

Methods: A descriptive and cross-sectional study involving BD patients divided into two groups: group 1 patients were diagnosed and followed between 1988 and 2010, and group 2 were diagnosed and followed between 2011 and 2022.

Chondrogenesis of human amniotic fluid stem cells in Chitosan-Xanthan scaffold for cartilage tissue engineering.

Articular chondral lesions, caused either by trauma or chronic cartilage diseases such as osteoarthritis, present very low ability to self-regenerate. Thus, their current management is basically symptomatic, progressing very often to invasive procedures or even arthroplasties. The use of amniotic fluid stem cells (AFSCs), due to their multipotentiality and plasticity, associated with scaffolds, is a promising alternative for the reconstruction of articular cartilage.

Relationship between radiological severity and physical and mental health in elderly individuals with knee osteoarthritis.

Background: This study aimed to investigate the relationship between radiological severity, as assessed by the individual grades and grouped grades (grades "0 and 1" and "2 to 4") of the Kellgren-Lawrence scale (K&Ls), and depression symptoms, cognitive loss, risk of falls, and quality of life in relation to knee osteoarthritis, as assessed by other instruments.

Methods: Data recorded between 2013 and 2014 in Amparo (São Paulo, Brazil) were retrieved for analysis. A total of 181 elderly patients who had knee osteoarthritis and underwent a radiologic exam were evaluated for depressive symptoms, cognitive loss, quality of life, and risk of falls by the Geriatric Depression Scale (GDS), Mini-Mental State Examination (MMSE), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), timed up and go test (TUG), and Berg balance scale (BBS).

Association between Knee Osteoarthritis and Metabolic Syndrome in Non-Institutionalized Elderly Patients.

 This study aimed to analyze the association between knee osteoarthritis (OA) and metabolic syndrome (MS) in non-institutionalized elderly patients.  A cross-sectional, randomized study, drawn from a probabilistic cluster study conducted with 416 elderly people from a Family Health Unit (USF, in the Portuguese acronym) of our municipality. Metabolic syndrome was defined according to the National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP III), and OA according to the Kellgren-Lawrence (KL) scale (≥ 2).

Generating evidence and understanding the treatment of osteoarthritis in Brazil: a study through Delphi methodology.

Objectives: This study aimed to provide evidence for understanding how to treat osteoarthritis (OA) in our country. Therefore, it was necessary to match information and investigations related to the treatment of the disease from the three main types of specialists involved: physiatrists, orthopedists and rheumatologists.

Methods: The authors acted as a scientific advisory committee.

Micromass cultures are effective for differentiation of human amniotic fluid stem cells into chondrocytes.

Objectives: Articular cartilage is vulnerable to injuries and undergoes an irreversible degenerative process. The use of amniotic fluid mesenchymal stromal stem cells for the reconstruction of articular cartilage is a promising therapeutic alternative. The aim of this study was to investigate the chondrogenic potential of amniotic fluid mesenchymal stromal stem cells from human amniotic fluid from second trimester pregnant women in a micromass system (high-density cell culture) with TGF-β3 for 21 days.

Differentiation of dental pulp stem cells into chondrocytes upon culture on porous chitosan-xanthan scaffolds in the presence of kartogenin.

Adhesion, proliferation and differentiation of dental pulp stem cells (DPSCs) into chondrocytes were investigated in this work with the purpose of broadening the array of cell alternatives to the therapy of cartilage lesions related to tissue engineering approaches. A porous chitosan-xanthan (C-X) matrix was used as scaffold and kartogenin was used as a selective chondrogenic differentiation promoter. The scaffold was characterized regarding aspect and surface morphology, absorption and stability in culture medium, thickness, porosity, thermogravimetric behavior, X-ray diffraction, mechanical properties and indirect cytocompatibility.

Body composition as a frailty marker for the elderly community.

Background: Body composition (BC) in the elderly has been associated with diseases and mortality; however, there is a shortage of data on frailty in the elderly.

Objective: To investigate the association between BC and frailty, and identify BC profiles in nonfrail, prefrail, and frail elderly people.

Methods: A cross-sectional study comprising 235 elderly (142 females and 93 males) aged ≥65 years, from the city of Amparo, State of São Paulo, Brazil, was undertaken.

Mortality in Brazilian community-dwelling older adults: 7 years of follow up in primary care.

Aim: To describe the main causes and factors associated with mortality in community-dwelling older adults in a county where the public health system covers most of the population.

Methods: We analyzed data from an existing cross-sectional study of 2209 participants (age ≥60 years) in a city in southeast Brazil where 92% of the population is served by a public system of primary care. Over a period of 7 years, 386 participants died and were included in the sample.

Influence of muscle mass and bone mass on the mobility of elderly women: an observational study.

Background: The purpose of this study was to investigate the influence of muscle mass and bone mineral density on markers of mobility in dwelling elderly women.

Methods: This cross-sectional study included 99 elderly women, who were 65 years old or above, in Campinas-SP, Brazil. To collect data, we used sociodemographic data, the body mass index (BMI), health status, comorbidities, use of medications, mobility tests (TUG and gait speed) and examinations of the body composition (densitometry with dual-emission X-ray absorptiometry "DXA").

Prevalence and factors associated with rheumatic diseases and chronic joint symptoms in the elderly.

Aim: In the elderly population, rheumatic conditions are major causes of pain that restrict participation in activities and mobility, and cause difficulties in the execution of self-care tasks. The present study aimed to analyze the prevalence and factors associated with the self-reported rheumatic diseases and chronic joint symptoms of the elderly.

Methods: This transversal epidemiological survey involved 2209 older adults (aged ≥ 60 years).

Effects of kinesiotherapy, ultrasound and electrotherapy in management of bilateral knee osteoarthritis: prospective clinical trial.

Background: Although recent advances in knee osteoarthritis (OA) treatment and evaluation were achieved, to the best of our knowledge, few studies have evaluated the longitudinal effect of therapeutic modalities on the functional exercise capacity of patients with knee OA. The purpose was to investigate the effects of kinesiotherapy and electrotherapy on functional exercise capacity, evaluated using the six-minute walk test (6-MWT) in patients with bilateral knee OA. Secondary measurements included range of motion (ROM), severity of knee pain (VAS), and a measure of perceived health and physical function, evaluated using the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index.

Regulation of hypoxia-inducible factor-1α (HIF-1α) expression by interleukin-1β (IL-1 β), insulin-like growth factors I (IGF-I) and II (IGF-II) in human osteoarthritic chondrocytes.

Objective: Hypoxia-inducible factor 1 alpha regulates genes related to cellular survival under hypoxia. This factor is present in osteroarthritic chondrocytes, and cytokines, such as interleukin-1 beta, participate in the pathogenesis of osteoarthritis, thereby increasing the activities of proteolytic enzymes, such as matrix metalloproteinases, and accelerating cartilage destruction. We hypothesize that Hypoxia Inducible Factor-1 alpha (HIF-1α) can regulate cytokines (catabolic action) and/or growth factors (anabolic action) in osteoarthritis.

Impact of rheumatic diseases and chronic joint symptoms on quality of life in the elderly.

Musculoskeletal disorders are the major causes of the pain in the elderly population. Rheumatic conditions restrict participation in activities and mobility, as well as cause difficulties in the execution of self-care tasks. The assessment of health related quality of life (HRQOL) is an important indicator of the impact of rheumatic diseases on the physical, mental and social aspects.

Periosteum as a source of mesenchymal stem cells: the effects of TGF-β3 on chondrogenesis.

Introduction: Numerous experimental efforts have been undertaken to induce the healing of lesions within articular cartilage by re-establishing competent repair tissue. Adult mesenchymal stem cells have attracted attention as a source of cells for cartilage tissue engineering. The purpose of this study was to investigate chondrogenesis employing periosteal mesenchymal cells.

Regulation of chondrogenesis by transforming growth factor-beta 3 and insulin-like growth factor-1 from human mesenchymal umbilical cord blood cells.

Objective: Mature articular cartilage is vulnerable to injuries and disease processes that cause irreversible tissue damage because of its limited capacity for self-repair. Umbilical cord blood is a source of mesenchymal stem cells, which can give rise to cells of different lineages, including cartilage, bone, and fat. Cellular condensation is a required step in the initiation of mesenchymal chondrogenesis.

Falls in the elderly of the Family Health Program.

This study aims to determine the factors that may be related to falls in the elderly assisted by the Family Health Program (FHP). Elderly individuals aged 60 years or over, who were assisted by the FHP primary care system (n=2209), responded to a sociodemographic and health questionnaire. Mental health was evaluated using the Geriatric Depression Scale (GDS) and quality of life was assessed by the Medical Outcome Study Short-Form Health Survey (SF-36).

Systemic lupus erythematosus associated with vasculitic syndrome (Takayasu's arteritis).

A 43-year-old woman reported pain in the right hypochondrium, which had started 3 years before and had been worsening for the past few days. Claudication in the superior and inferior limbs, diffuse myalgia, dyspnea, precordialgia followed by dizziness and visual turbidity were added to the clinical picture. In the physical examination bilateral carotid bruit was observed, abdominal aorta murmur and the decrease of the right radial and left pedis pulses and arterial hypertension with difference in the diastolic pressure between limbs >10 mmHg was also observed.

Factors of high impacts on the life of caregivers of disabled elderly.

Elderly caregivers suffer physical and psychological consequences of the act of caring. The objective of this study was to characterize primary caregivers of elderly people in the community and identify the higher impacts of this activity on their life. We interviewed 127 caregivers about sociodemographic characteristics, presence of anxiety/depression (self-reporting questionnaire=SRQ), burden of care (caregiver burden scale=CBS); while their dependents were evaluated using sociodemographic questionnaires, health history, activities of daily living (ADL) scale and geriatric depression scale (GDS-15).

Sensory interaction on static balance: a comparison concerning the history of falls of community-dwelling elderly.

Aim: To determine whether elderly subjects with distinct histories of falls presented differences concerning the influence of sensory interaction on balance.

Methods: Cross-sectional research. Ninety-six community-dwelling elderly subjects were divided into three groups, according to the history of falls within the past year (group 1, no falls; group 2, one fall; and group 3, recurrent falls).

Childhood systemic lupus erythematosus in Latin America. The GLADEL experience in 230 children.

To evaluate disease characteristics of childhood onset SLE in Latin America and to compare this information with an adult population in the same cohort of GLADEL. A protocol was designed as a multicenter, multinational, inception cohort of lupus patients to evaluate demographic, clinical, laboratory and serological variables, as well as classification criteria, disease activity, organ damage and mortality. Descriptive statistics, chi square, Fisher's exact test, Student's t test and multiple logistic regression were used to compare childhood and adult onset SLE.