The aim of this study was to assess the impact of environmental factors: cigarette smoking, dental amalgam fillings, eating habits and osteoporosis, on the concentrations of copper (Cu), zinc (Zn), lead (Pb), cadmium (Cd) and mercury (Hg) in the bone of hip joint in patients in the Orthopedics Clinic in Szczecin, Poland. Amalgam dental fillings had an effect on the Cu concentration in the cartilage with the adjacent compact bone, and on Hg concentration in the spongy bone. The highest concentrations of Cu and Hg were found in people with multiple amalgam fillings. Smoking appeared to influence Pb concentration in the cartilage with the adjacent compact bone, and Cd concentration in the spongy bone. Increased Pb was detected in smokers, and increased Cd in non-smokers. Diets rich in fish and seafood correlated with Cd concentration in the cartilage with adjacent compact bone. The greatest concentration was in people who ate fish or seafood at least once a month.
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Adv Healthc Mater
January 2025
Inserm UMR_S 1121, CNRS EMR 7003, Université Strasbourg, Biomaterials and Bioengineering, Centre de Recherche en Biomédecine de Strasbourg, Strasbourg, F-67000, France.
Current biodegradable materials are facing many challenges when used for the design of implantable devices because of shortcomings such as toxicity of crosslinking agents and degradation derivatives, limited cell adhesion, and limited immunological compatibility. Here, a class of materials built entirely of stable protein is designed using a simple protocol based on salt-assisted compaction of albumin, breaking with current crosslinking strategies. Salt-assisted compaction is based on the assembly of albumin in the presence of high concentrations of specific salts such as sodium bromide.
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January 2025
Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Background: Microfracture drilling is a surgical technique that involves creating multiple perforations in areas of cartilage defects to recruit stem cells from the bone marrow, thereby promoting cartilage regeneration in the knee joint. Increasing the exposed bone marrow surface area (more holes in the same area) can enhance stem cell outflow. However, when the exposed area is large, it may affect the mechanical strength of the bone at the site of the cartilage defect.
View Article and Find Full Text PDFCarbohydr Polym
March 2025
Orthopaedic clinic, Mehrad hospital, Tehran, Iran.
The reduction in hyaluronic acid concentration and viscosity in the synovial fluid of patients struggling with osteoarthritis increases the abrasion of articular cartilage. The aim of this study was to design a semi-IPN hydrogel based on genipin-crosslinked carboxymethyl chitosan (CMCh) and glycerol to achieve long-term release of hyaluronic acid. The results showed that hydrogel comprising CMCh (3 % wt.
View Article and Find Full Text PDFFront Bioeng Biotechnol
January 2025
The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
Background: Polydatin (PD), also known as tiger cane glycoside, is a natural compound extracted from the Japanese knotweed plant, which is often referred to as white resveratrol. It exhibits anti-inflammatory, antioxidant, and anti-apoptotic effects in the treatment of various diseases. However, the potential molecular mechanisms of PD in osteoarthritis have not been clearly elucidated.
View Article and Find Full Text PDFACS Biomater Sci Eng
January 2025
The Affiliated Ganzhou Hospital of Nanchang University, Meiguan Avenue No. 16, Ganzhou 341000, China.
Osteoarthritis (OA) is a chronic multifactorial disease characterized by cartilage degeneration, pain, and reduced mobility. Current therapies primarily aim to relieve pain and restore function, but they often have limited effectiveness and side effects. Coixol, a bioactive compound from Coix lacryma-jobi L.
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