Ravi S. Singh

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PURPOSE To identify amacrine cells that are vulnerable to degeneration during the early stages of diabetes. METHODS Whole retinas from streptozotocin (STZ)-diabetic rats and Ins2(Akita) mice were fixed in paraformaldehyde. Apoptotic cells in the retina were quantified using terminal dUTP nick-end labeling (TUNEL) and active caspase-3 (CM-1)(More)
PURPOSE To evaluate outer retinal structural abnormalities in patients with visual deficits after closed-globe blunt ocular trauma. METHODS Nine subjects with visual complaints after closed-globe blunt ocular trauma were examined between 1 month after trauma and 6 years after trauma. Spectral domain optical coherence tomography was used to assess the(More)
Diabetes pathology derives from the combination of hyperglycemia and hypoinsulinemia or insulin resistance leading to diabetic complications including diabetic neuropathy, nephropathy and retinopathy. Diabetic retinopathy is characterized by numerous retinal defects affecting the vasculature and the neuro-retina, but the relative contributions of the loss(More)
The treatment of distal humeral periprosthetic fractures is not widely described in the literature. We present a difficult clinical scenario of a 72-year-old man who sustained a displaced distal humeral periprosthetic fracture about a Polarus Plus intramedullary nail. In this case, stable fixation was achieved using bicondylar Acumed Mayo congruent Plates(More)
Simultaneous dorsal dislocation of both interphalangeal joints (IPJs) in one finger is an uncommon injury. This injury usually occurs on the ulnar side of the hand involving ring and little fingers. We report a case of simultaneous dislocation of both IPJs in the middle finger. Closed reduction and splinting with the IPJs in extension provided a good result(More)
Osteoid osteoma occurs most commonly in children, adolescents, and young adults between the ages of 5 and 30 years. In the preschool age group, it is quite uncommon, accounting for only 3-8% of all osteoid osteoma cases. We report a case of osteoid osteoma in a 7-month-old infant, who presented with decreased use of the right lower extremity due to pain.(More)
  • Laura Bottazzi, Marco Da, Rin, Thomas Hellmann, Manuel Arellano, Jim Brander +20 others
  • 2006
This paper examines the effect of trust in a micro-economic environment, where trust is clearly exogenous. Using a hand-collected data on European venture capital, we show that the Eurobarometer measure of trust among nations significantly affects investment decisions. This holds even after controlling for investor and company fixed effects, geographic(More)
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