The aim of this study was to evaluate the effects of the addition of antioxidants (vitamin E, β- mercaptoethanol and their combination) to semen extender.  Progressive motility, viability and pH of fresh ram semen were examined. Ejaculate samples were collected with artificial vagina from three Ghezel-Merinose rams (3 years old) during non- breeding reproduction season. Semen was diluted with a...

objective: as effectiveness of the autologous graft in the repair of long nerve defects is very limited an effective substitute is needed. this study was conducted to determine the poled polyvinylidene fluoride (pvdf) tube as an alternative to nerve autograft. materials and methods: the left sciatic nerve was transected in 45 male wistar rats. the animals were then divided randomly into three g...

Development of the segmented central nerve cords of vertebrates and invertebrates requires connecting successive neuromeres. Here, we show both how a pathway is constructed to guide pioneer axons between segments of the Drosophila CNS, and how motility of the pioneers along that pathway is promoted. First, canonical Notch signaling in specialized glial cells causes nearby differentiating neuron...

Abnormalities of ocular motility serve as valuable signposts for the localization of lesions of the cerebral hemispheres, brainstem, cranial nerves, and even striated muscle. Ocular symptoms and signs are particularly helpful when examining the patient in coma (see Chapter 22). In this chapter, the term ocular motor refers to cranial nerves III (oculomotor), IV (trochlear), and VI (abducens), c...

conclusions our results support the use of pns in some patients with refractory chronic headaches. appropriate surgical planning and technique are important to achieve good clinical outcome and to minimize complications. background subcutaneous peripheral nerve stimulation (pns) has emerged as a useful tool in the treatment of intractable headaches. however, complications such as skin erosion, ...

background: two main muscles studied in the hand for evaluation of median nerve injuries are opponens pollicis (op) and abductor pollicis brevis (apb). however, riché-cannieu communicating branch (rccb) may limit the use of these muscles in electrodiagnosis. this condition is confusing in the case of median nerve injuries. this study was conducted to evaluate the prevalence of rccb.   methods: ...

Introduction: Repair of peripheral nerve injuries is an intensive area of challenge and research in modern reconstructive microsurgery. Intensive research is being carried out to develop effective alternatives to the standard nerve autografting, avoiding its drawbacks. The aim of the study was to evaluate the effectiveness of a newly designed mechanical device for the reconstruction of the...

Monosodium l-glutamate (MSG) is a substance known to produce the umami taste. Recent studies indicate that MSG also stimulates a variety of activities in the gastrointestinal tract through its receptor in the gut, but no study has reported the activity in conscious large experimental animals. The aim of our study was to investigate whether direct intragastric MSG stimulates gut motility and to ...