Samuel Weissman

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OBJECTIVE The human bone marrow contains mesenchymal stem cells capable of differentiating along multiple mesenchymal cell lineages. Using a non-human primate model, we sought to determine whether the systemic infusion of baboon-derived mesenchymal stem cells was associated with toxicity and whether these cells were capable of homing to and persisting(More)
The effect of overuse and overuse combined with axial peak overloading on the knee joints of living rabbits has been investigated. A specially constructed apparatus was used for this purpose. Physical and biochemical changes are reported and include: 1. Early and progressive damage to the articular cartilage surface shown by the scanning electron(More)
The longterm results of surgical and conservative treatment in two almost identical groups of patients with fractures of the ankle have been analyzed. The results were better after conservative treatment; delayed operation and repeated manipulations were found to be the main reason for the poorer postoperative results, especially in elderly osteoporotic(More)
In a review of the roentgenological files of 22 patients suffering from spastic paraplegia due to neurolathyrism, 3 patients were found to present abnormal skeletal findings. 2 patients showed absence of union of the secondary ossification centres of the iliac crests, the ischial tuberosities and the vertebral bodies. Their age at the time of ingestion of(More)
OBJECTIVE The objective of this study was to report on the prevalence, incidence and prognosis of left ventricular hypertrophy (LVH) on the electrocardiogram (ECG) in a cohort of ambulatory older men and women. DESIGN A prospective, longitudinal study of 10 years duration with ECGs obtained at baseline and on an annual basis. SETTING AND PATIENTS A(More)