The pathophysiology of Parkinson's disease is reviewed in light of recent advances in the understanding of the functional organization of the basal ganglia (BG). Current emphasis is placed on the parallel interactions between corticostriatal and corticosubthalamic afferents on the one hand, and internal feedback circuits modulating BG output through the globus pallidus pars interna and substant...

Background Data: Spondylolysis is a stress fracture of the pars interarticularis that occurs in 2–5% population. Surgical techniques spondylolysis repair have been challenging last decades.

Pars planitis is an idiopathic chronic intermediate uveitis which predominantly affects children and adolescents, and accounts for 5-26.7% of pediatric uveitis. Although an autoimmune process with a genetic predisposition has been suggested, its etiology still remains unknown. The most common presenting symptoms are floaters and blurred vision. Diffuse vitreous cells, haze, snowballs and snowba...

The switch between latency and the lytic cycle of Kaposi's sarcoma-associated herpesvirus (KSHV) is controlled by the expression of virally encoded ORF50 protein. Thus far, the regulatory mechanism underlying the protein stability of ORF50 is unknown. Our earlier studies have demonstrated that a protein abundance regulatory signal (PARS) at the ORF50 C-terminal region modulates its protein abun...

Protease-activated receptors (PARs) comprise a family of four G protein-coupled (GPCRs) that have broad functions in health and disease. Unlike most GPCRs, PARs are uniquely activated by proteolytic cleavage their extracellular N termini. To fully understand PAR activation function vivo, it is critical to also study the proteases activate them. As heavily regulated at post-translational level, ...

Programme de l’année 2021-2022 : I. Lecture et commentaire des ?azavât-? Hayr ed-dîn Pa?a (pars secunda). — II. documents d’archives ayant rapport avec ses activités.

This study attempts to specify the contribution of two subregions of Broca's area during syntactic and semantic processing of sentences by examining brain activation in a grammaticality judgment task. The processing of two types of ungrammatical sentences was examined. One type leaves the thematic interpretation generally unaffected, by violating the noun-verb agreement in number, while the oth...

Presently, lumbar spondylolisthesis did not have the indication of direct repair surgery because of the difficulty to reduce the slippage. In this report, we presented a case and described a minimally invasive direct repair surgery to reduce and repair the pars interarticularis defects of lumbar spondylolisthesis. First, curettage and removal of the synovium of the pars interarticularis and dec...

Melanin pigmentation of the vertebrate integument is regulated by melanophore-stimulating hormone (MSH) which originates from the pars intermedia of the pituitary gland (1). Early experiments established that MSH release, as for other pituitary secretions, was under control by the hypothalamus (2). Similar to prolactin release (3), MSH secretion is under an inhibitory control by the hypothalamu...