Mediating Role of Myokines in the Dialogue Between Muscle and Bone Tissue in a Population of Healthy Women Aged 20-89 Years
Analysis of the Mediating Role of Myokines in the Dialogue Between Muscle and Bone Tissue in a Population of Healthy Women Aged 20-89 Years
Centre Hospitalier Universitaire de Nīmes
280 participants
Nov 6, 2024
INTERVENTIONAL
Conditions
Summary
The main hypothesis is that muscle acts on bone tissue via the secretion of myokines (myostatin, follistatin, irisin). This is based on previous results showing that muscle mass in different patient populations with very different body mass indexes (anorexic or obese patients) is significantly and independently associated with bone mineral density.
Eligibility
Inclusion Criteria3
- Self-reported Caucasian ethnicity (Europe, Middle East, North Africa) only as there is a difference in BMD by ethnicity.
- Person affiliated with or benefiting from a social security scheme.
- Free, informed consent signed by the participant and the investigator (at the latest on the day of inclusion and before any examination required by the research).
Exclusion Criteria45
- Fragility fracture defined as a spontaneous or low-kinetic fracture (≤ one fall from height).
- Early menopause (\< 40 years), hysterectomy (complete \< 40 years), primary amenorrhea (absence of menstruation before 15 years), current amenorrhea of more than 3 months without contraceptive if the patient is less than 40 years old.
- Patients on treatments: prolonged corticosteroid therapy \> 3 months or \> 1 g (cumulative dose).
- Immobilization of more than 3 months, less than 12 months old.
- Hip fracture in a first-degree relative.
- Patients with any of the following pathologies affecting bone, muscle or adipose tissue:
- Inflammatory bowel disease (IBD: Crohn's disease, ulcerative colitis) and untreated celiac disease.
- Renal insufficiency on dialysis or patients with nephrology follow-up.
- Known hypercalciuria.
- Osteomalacia, rickets, osteogenesis imperfecta.
- Osteopathy (Paget's disease, osteopetrosis, etc.).
- Chronic inflammatory rheumatism.
- Hemopathy, neoplasia.
- Hepatic insufficiency or chronic hepatitis.
- Endocrinopathy: diabetes, dysthyroidism, hypogonadism, hypercorticism, untreated acromegaly.
- Anorexia nervosa.
- Hyperparathyroidism (even controlled).
- History of digestive surgery (bariatric, gastrectomy, digestive resection other than appendectomy, etc.).
- History of organ transplantation.
- Chronic infectious disease (HIV, etc.).
- Weight loss of more than 10 kg within 6 months.
- Paresis, marked lameness or unloading of a limb, or prolonged immobilization of more than one month in the last 12 months.
- Patients on treatments that may affect bone mass or body composition:
- Biphosphonates (Alendronate (Fosamax® and generics), Risedronate (Actonel® and generics), Zoledronate (Aclasta® and generics).
- Teriparatide (Forsteo®).
- Denosumab (Prolia®)
- Selective estrogen receptor modulators (Clomifene, Tamoxifene, Toremifene, Raloxifene).
- Anabolic steroids.
- Strontium ranelate.
- Carbamazepine.
- Phenobarbital.
- Immunosuppressants.
- Patients on anti-epileptics.
- Patients with any of the following abnormalities in the measurement area:
- Major deformities of the wrist, hip or vertebrae.
- Compression of vertebral bodies, cementoplasty.
- Prosthesis, implant (breast, buttock, etc.), foreign body.
- Hip paraosteoarthropathy.
- Injection of radiological contrast medium, barium enema, nuclear medicine examination within 10 days.
- Intensive sport (more than 10 h/week).
- Extreme BMI (BMI \< 18, BMI \> 35 kg/m²).
- Loss of autonomy.
- People with neurodegenerative disorders affecting their ability to give consent.
- Pregnant, parturient or breast-feeding women.
- Participation in an interventional study involving a drug or medical device or a category 1 RIPH within 3 months prior to inclusion.
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Interventions
36 ml of blood in 3 x 7 ml dry tubes, 1 x 5 ml EDTA tube, 1 x 5 ml heparinized tube, 1 x 5 ml anti-protease tube)
5 ml of saliva will be taken.
The grip strength of the dominant arm will be measured with the participant in a standing position, with the arm close to the body and the elbow at 90◦ flexion, while the non-dominant arm will be positioned alongside the body. Three measurements will be taken for the dominant hand, and the mean value will be calculated and used for analysis. One minute is allowed between each repetition, to avoid muscle fatigue. Dynamometer quality control is ensured by regularly checking known resistance values.
The microFET2 device is used to test isometric force. The microFET2 dynamometer is battery-powered and ergonomically designed to fit in the palm of the hand. The system is microprocessor-controlled to provide accurate, repeatable muscle force readings. The microFET Clinical software automatically performs calculations and validity tests, and allows graphs to be generated from the data, enabling reports of different patient tests to be compared
The maximal isometric knee extension strength test on a specially-adapted strength bench consists in performing 3 maximal contractions with 1 minute's rest between each test.
Battery of tests comprising a balance test, a walking speed test and a chair-lift test
Muscular function will be determined by the 6-minute walk test to assess aerobic endurance. Participants will be asked to walk for 6 min as fast as possible on a shuttle track. The distance (m) covered in 6 min will be measured. Walking speed (m/s) will be calculated as the distance (m) covered in 6 min. A walking speed \<0.8 m/s has been defined as a low value.
Segmental impedancemetry involves measuring body composition using the body's resistance to the passage of a low-intensity electric current. This test is harmless to the body.
An Indirect calorimetry is the standard method for measuring energy expenditure at rest. It is based on the principle that the human body burns nutrients using O2 and producing CO2.
Completion of a questionnaires on calcium intake (Fardellone)
The ONAPS questionnaire contains questions on physical activity and sedentariness
The dietary intake questionnaire contains questions regarding the person's eating habits - how many meals a day, where they eat, whether they eat alone, what foods they eat/drink and whether they are following a particular diet and, if so, the reasons why.
Locations(2)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT06683222