Improvement of motor performance in children with cerebral palsy treated with exoskeleton robotic training: A retrospective explorative analysis.

BACKGROUND: Robot-assisted gait training (RAGT) is widely used in children with cerebral palsy (CP), but information about optimal intervention frequency and duration is still lacking and the current evidence about effect of RAGT on motor endurance and fitness is very preliminary. OBJECTIVE: To investigate the effect of RAGT on motor performance and endurance in children affected by CP. METHODS: Data from 14 consecutive children (6 females, age range: 4.6-15.8 years) affected by CP, who underwent a multidisciplinary rehabilitation program during a 18-24 month period, were retrospectively collected. Rehabilitation program included conventional physical therapy and RAGT (60/60 minutes, 20 daily sessions, 5 days/week). CP severity was stratified according to the Gross Motor Function Classification System. Clinical evaluation was performed by means of the six-minute walking test, the modified Ashworth scale, and RAGT measures (total distance, mean distance for session and speed). RESULTS: Clinical outcomes and speed did not improve after treatment, while total distance (p = 0.006) and mean distance for session (p = 0.007) significantly improved. CONCLUSIONS: Our preliminary study suggests that RAGT combined with conventional treatment may improve motor performance and endurance in children with CP. Future randomized controlled trials comparing RAGT to conventional treatment are needed.

Predicting Functional Recovery in Chronic Stroke Rehabilitation Using Event-Related Desynchronization-Synchronization during Robot-Assisted Movement.

Although rehabilitation robotics seems to be a promising therapy in the rehabilitation of the upper limb in stroke patients, consensus is still lacking on its additive effects. Therefore, there is a need for determining the possible success of robotic interventions on selected patients, which in turn determine the necessity for new investigating instruments supporting the treatment decision-making process and customization. The objective of the work presented in this preliminary study was to verify that fully robot assistance would not affect the physiological oscillatory cortical activity related to a functional movement in healthy subjects. Further, the clinical results following the robotic treatment of a chronic stroke patient, who positively reacted to the robotic intervention, were analyzed and discussed. First results show that there is no difference in EEG activation pattern between assisted and no-assisted movement in healthy subjects. Even more importantly, the patient's pretreatment EEG activation pattern in no-assisted movement was completely altered, while it recovered to a quasi-physiological one in robot-assisted movement. The functional improvement following treatment was large. Using pretreatment EEG recording during robot-assisted movement might be a valid approach to assess the potential ability of the patient for recovering.

Ethylene-producing bacteria that ripen fruit.

Ethylene is a plant hormone widely used to ripen fruit. However, the synthesis, handling, and storage of ethylene are environmentally harmful and dangerous. We engineered E. coli to produce ethylene through the activity of the ethylene-forming enzyme (EFE) from Pseudomonas syringae. EFE converts a citric acid cycle intermediate, 2-oxoglutarate, to ethylene in a single step. The production of ethylene was placed under the control of arabinose and blue light responsive regulatory systems. The resulting bacteria were capable of accelerating the ripening of tomatoes, kiwifruit, and apples.