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3 results on '"živac"'

1. Successful outcome in the treatment of a rare brachial plexus schwannoma: a case report with literature review.

Author

Sefo, Haso, Bečulić, Hakija, Begagić, Emir, Skomorac, Rasim, Jusić, Aldin, Salković, Naida, Mašović, Anes, and Juković-Bihorac, Fatima

Subjects
*BRACHIAL plexus, *TUMORS, *SCHWANN cells, *NERVES, *SCHWANNOMAS
Abstract

Introduction: plexus brachialis is a network of nerves, which is responsible for the transmission of nerve impulses from the brain to the muscles of the upper extremities Aim: to present a very rare case of schwannoma of brachial plexus. Case report: a 29-year-old female patient was presented with a mass on the posteromedial side of the left upper arm. It was a localized mass with distal paresthesia of the upper arm, firm on palpation. MRI scan showed an expansive mass along with the medial head of the triceps brachial muscle, measuring 25x48x31mm. This mass radiologically showed as Schwannoma which affected the ulnar, radial, and musculocutaneous nerve. During resection, firstly brachial artery and vein were detached from a tumor. Musculo-cutaneal and ulnar nerves were completely separated. The radial nerve was infiltrated with a clear origin and preserved fibers were successfully dissected. Implantation of a sural graft wasn't used, because more than 50% of the radial nerve fibers were preserved. Results: postoperatively, the patient had limited dorsiflexion of the left palm. After physical treatment, the patient made full recovery. Conclusion: schwannoma is a rare tumor that can successfully be removed, and it has a very good prognosis with the possibility of full recovery from neurological deficiency. [ABSTRACT FROM AUTHOR]

Published
2024

2. Regeneracija skeletnog mišića i uloga regeneracijskih gena

Author

Starčević-Klasan, Gordana, Martinčić, Tina, Nikolić, Marina, Josipović, Orijana, Peharec, Stanislav, and Bobinac, Dragica

Subjects
satellite cells, skeletni mišić, denervacija, živac, Denervacija, Regeneracija, Satelitske stanice, Skeletni mišić, Živac, denervation, regeneracija, regeneration, BIOMEDICINE AND HEALTHCARE. Basic Medical Sciences. Anatomy, nerve, skeletal muscle, BIOMEDICINA I ZDRAVSTVO. Temeljne medicinske znanosti. Anatomija, satelitske stanice
Abstract

Skeletni mišić odraslog organizma je dinamično tkivo koje ima iznimnu sposobnost regeneracije nakon ozljede. Radi se o sinkroniziranim procesima koji uključuju aktivaciju populacije mišićnih prekursora koje nazivamo satelitskim stanicama. Nakon povrede skeletni mišić vrlo brzo započinje s opsežnim procesima reparacije s ciljem prevencije gubitka mišićne mase. Inicijalna faza mišićne regeneracije i reparacije karakterizirana je nekrozom oštećenog tkiva i upalom. Gotovo istodobno aktiviraju se do tada mirne satelitske stanice, proliferiraju, diferenciraju i spajaju se kako bi nastalo multinuklearno mišićno vlakno. U procesu mišićne regeneracije značajnu funkciju imaju i proteini regeneracijske (Reg) genske obitelji. Obitelj Reg gena uključena je u proces regeneracije tkiva, rast i proliferaciju različitih stanica, staničnu adheziju i otpornost na apoptozu. Reg geni očituju se u ranim fazama ozljede, što upućuje na njihovu ulogu reaktanta akutne faze upale i faktora rasta koji uzrokuje proliferaciju i rast satelitskih stanica u skeletnom mišiću, odnosno proliferaciju i rast Schwannovih stanica u ozlijeđenom perifernom živcu. Budući da se Reg 3G pojavljuje odmah nakon ozljede mišića i živca, pretpostavlja se da ima ulogu posrednika u signaliranju između ozlijeđenog živca i mišića, a moguće i makrofaga., Adult skeletal muscle is an extremely dynamic tissue which has a tremendous ability of regeneration after muscle injury. These processes are highly synchronized involving the activation of well-defined population of muscle stem cells called satellite cells. After injury skeletal muscle initiate a rapid and extensive repair process preventing the loss of muscle mass. The initial phase of muscle regeneration and repair is characterized by necrosis of the damaged tissue and inflammation. Almost simultaneously previous quiescent satellite cells are activated, proliferate, differentiate and fuse to form multinucleated myofibers. The regenerating (Reg) protein family has important role in the process of muscle regeneration. Reg proteins play important roles in tissue regeneration, cell growth and proliferation, cell adhesion and resistance to apoptosis. A Reg3G gene is upregulated in the early phase of muscle injury and acts as acute phase reactants and growth factor for muscle satellite cells and injured Schwann cells. Since the induction and release of Reg3G appeared to readily respond to muscle and nerve injury, Reg3G may function as mediators of the injury signal among the injured nerve and muscle, and possibly macrophages.

Published
2015

3. Regeneracija skeletnog mišića i uloga regeneracijskih gena

Author

Gordana Starčević-Klasan, Tina Martinčić, Marina Nikolić, Orijana Josipović, Stanislav Peharec, and Dragica Bobinac

Subjects
denervation, nerve, regeneration, satellite cells, skeletal muscle, denervacija, regeneracija, satelitske stanice, skeletni mišić, živac
Abstract

Skeletni mišić odraslog organizma je dinamično tkivo koje ima iznimnu sposobnost regeneracije nakon ozljede. Radi se o sinkroniziranim procesima koji uključuju aktivaciju populacije mišićnih prekursora koje nazivamo satelitskim stanicama. Nakon povrede skeletni mišić vrlo brzo započinje s opsežnim procesima reparacije s ciljem prevencije gubitka mišićne mase. Inicijalna faza mišićne regeneracije i reparacije karakterizirana je nekrozom oštećenog tkiva i upalom. Gotovo istodobno aktiviraju se do tada mirne satelitske stanice, proliferiraju, diferenciraju i spajaju se kako bi nastalo multinuklearno mišićno vlakno. U procesu mišićne regeneracije značajnu funkciju imaju i proteini regeneracijske (Reg) genske obitelji. Obitelj Reg gena uključena je u proces regeneracije tkiva, rast i proliferaciju različitih stanica, staničnu adheziju i otpornost na apoptozu. Reg geni očituju se u ranim fazama ozljede, što upućuje na njihovu ulogu reaktanta akutne faze upale i faktora rasta koji uzrokuje proliferaciju i rast satelitskih stanica u skeletnom mišiću, odnosno proliferaciju i rast Schwannovih stanica u ozlijeđenom perifernom živcu. Budući da se Reg 3G pojavljuje odmah nakon ozljede mišića i živca, pretpostavlja se da ima ulogu posrednika u signaliranju između ozlijeđenog živca i mišića, a moguće i makrofaga., Adult skeletal muscle is an extremely dynamic tissue which has a tremendous ability of regeneration after muscle injury. These processes are highly synchronized involving the activation of well-defined population of muscle stem cells called satellite cells. After injury skeletal muscle initiate a rapid and extensive repair process preventing the loss of muscle mass. The initial phase of muscle regeneration and repair is characterized by necrosis of the damaged tissue and inflammation. Almost simultaneously previous quiescent satellite cells are activated, proliferate, differentiate and fuse to form multinucleated myofibers. The regenerating (Reg) protein family has important role in the process of muscle regeneration. Reg proteins play important roles in tissue regeneration, cell growth and proliferation, cell adhesion and resistance to apoptosis. A Reg3G gene is upregulated in the early phase of muscle injury and acts as acute phase reactants and growth factor for muscle satellite cells and injured Schwann cells. Since the induction and release of Reg3G appeared to readily respond to muscle and nerve injury, Reg3G may function as mediators of the injury signal among the injured nerve and muscle, and possibly macrophages.

Published
2015

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