Performance of Inaugural Student Cohorts in 1-Year Special Master's Program.

SUNY Upstate Medical University (Upstate) recently revised two 1-year special master's programs (SMPs), designed to enhance academics in preparation for medical school through rigorous graduate science coursework. Upstate SMP program success was measured by graduate performance during the first year of medical school. First-year performance measures included academic deficiencies, exam performance, and participation grades in a longitudinal case-based course on ethics and public health.

Quick and Clean: LCME Scientific Method Training Without a Teaching Laboratory.

This exercise satisfies the Liaison Committee on Medical Education Standard 7.3 for medical student training in the scientific method. The students are challenged, individually and in small groups, to state and test hypotheses based on real patient data concerning risk factors for the development of hepatocellular carcinoma.

Formation of complex AChR aggregates in vitro requires alpha-dystrobrevin.

Efficient function at the neuromuscular junction requires high-density aggregates of acetylcholine receptors (AChRs) to be precisely aligned with the motor nerve terminal. A collaborative effort between the motor neuron and muscle intrinsic factors drives the formation and maintenance of these AChR aggregates. alpha-Dystrobrevin (alpha DB), a cytoplasmic protein found at the postsynaptic membrane, has been implicated in the regulation of AChR aggregate density and patterning.

Mirk/dyrk1B is a Rho-induced kinase active in skeletal muscle differentiation.

The Rho family of small GTPases regulates numerous signaling pathways that control the organization of the cytoskeleton, transcription factor activity, and many aspects of the differentiation of skeletal myoblasts. We now demonstrate that the kinase Mirk (minibrain-related kinase)/dyrk1B is induced by members of the Rho-family in myoblasts and that Mirk is active in skeletal muscle differentiation. Mirk is an arginine-directed serine/threonine kinase which is expressed at elevated levels in skeletal muscle compared with other normal tissues.

Abnormal thalamocortical pathfinding and terminal arbors lead to enlarged barrels in neonatal GAP-43 heterozygous mice.

GAP-43 has been implicated in axonal pathfinding and sprouting, synaptic plasticity, and neurotransmitter release. However, its effect on cortical development in vivo is poorly understood. We have previously shown that GAP-43 knockout (-/-) mice fail to develop whisker-related barrels or an ordered whisker map in the cortex.

Tyrosine-phosphorylated and nonphosphorylated isoforms of alpha-dystrobrevin: roles in skeletal muscle and its neuromuscular and myotendinous junctions.

alpha-Dystrobrevin (DB), a cytoplasmic component of the dystrophin-glycoprotein complex, is found throughout the sarcolemma of muscle cells. Mice lacking alphaDB exhibit muscular dystrophy, defects in maturation of neuromuscular junctions (NMJs) and, as shown here, abnormal myotendinous junctions (MTJs). In normal muscle, alternative splicing produces two main alphaDB isoforms, alphaDB1 and alphaDB2, with common NH2-terminal but distinct COOH-terminal domains.

Rapsyn-mediated clustering of acetylcholine receptor subunits requires the major cytoplasmic loop of the receptor subunits.

During synaptogenesis at the neuromuscular junction, nicotinic acetylcholine receptors (AChRs) are organized into high-density postsynaptic clusters that are critical for efficient synaptic transmission. Rapsyn, an AChR associated cytoplasmic protein, is essential for the aggregation and immobilization of AChRs at the neuromuscular junction. Previous studies have shown that when expressed in nonmuscle cells, both assembled and unassembled AChR subunits are clustered by rapsyn, and the clustering of the alpha subunit is dependent on its major cytoplasmic loop.