SAMIR OMAR SALEH
Projetos de Pesquisa
Unidades Organizacionais
LIM/02 - Laboratório de Anatomia Médico-Cirúrgica, Hospital das Clínicas, Faculdade de Medicina
33 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 33
conferenceObject Histopathologic changes in gastric mucosa after experimental gastric restriction(2017) MOTA FILHO, Guilherme; ITEZEROTE, Ana Maria; SALEH, Samir; HOJAIJ, Flavio; ANDRADE, Mauro; MARTINEZ, Carlos Augusto Real; AKAMATSU, Flavia Emi; JACOMO, Alfredo LuizconferenceObject Non-ablative radiofrequency enhance collagen content on the injured Achilles tendon after one year in rats(2017) AKAMATSU, Flavia Emi; ITEZEROTE, Ana Maria; SALEH, Samir; HOJAIJ, Flavio; ANDRADE, Mauro; TEODORO, WalcyconferenceObject Colonic mucosa is affected by gastric restriction in an animal model(2017) FONTES, Luiz Gustavo; ITEZEROTE, Ana; SALEH, Samir; HOJAIJ, Flavio; ANDRADE, Mauro; MARTINEZ, Carlos Augusto Real; AKAMATSU, Flavia Emi; JACOMO, Alfredo Luiz- Anatomical Study of the Innervation of the Masseter Muscle and Its Correlation with Myofascial Trigger Points(2020) PINHEIRO, Roberto Procopio; GAUBEUR, Matheus Aquesta; ITEZEROTE, Ana Maria; SALEH, Samir Omar; HOJAIJ, Flavio; ANDRADE, Mauro; JACOMO, Alfredo Luiz; AKAMATSU, Flavia EmiBackground and Purpose: Myofascial pain syndrome (MPS) is widely prevalent in the general population; some reports estimate its prevalence ranges from 9 to 85%. Among the different locations where MPS may arise, pain related to the masseter muscle is referred as masticatory myofascial pain. MPS is characterized by myofascial trigger points (MTPs), which represent tender anatomical areas of a muscle where painful symptoms are elicited whenever stimulated. Previous publications have found MTPs to coincide with neuromuscular junctions at the motor end plate, at the innervation zone (IZ). Our study aimed to describe the innervation of the masseter muscle and relate it to clinically described myofascial trigger points (MTPs). Materials and Methods: We mapped the nerve fiber distribution into the masseter muscles from 16 cadavers by anatomical dissection. We divided the muscle into six regions, three superior (I-III) and three inferior (IV-VI), and classified the nerve's branches distribution according to these predetermined areas. Statistical analyses was made by Poisson distribution and logarithm link function followed by Bonferroni multiple comparisons (P<0.05). Results: All six areas received branches from the masseteric nerve. Areas I and II (upper posterior and upper intermediate, respectively) had a significant higher number of nerve entries as compared to the remaining areas. Conclusion: The penetration areas of the masseteric nerve have been established and MTPs are found in the innervation zones, clinicians should focus initially on the regions of the penetration points, for diagnostics and therapeutic measures, such as injections, dry needling and soft tissue interventions. Anatomical study of nerve supply to the masseter muscle can provide useful additional knowledge to further understanding masticatory myofascial pain and to direct therapeutic interventions and diagnostic studies of temporomandibular junction dysfunction.
conferenceObject Experimental model of Achilles tendon injury in rats(2014) AKAMATSU, Flavia; TEODORO, Walcy; SALEH, Samir; SILVA, Alexandre; HOJAIJ, Flavio; MARTINEZ, Carlos; ANDRADE, Mauro; JACOMO, Alfredo- Photobiomodulation therapy increases collagen II after tendon experimental injury(2021) AKAMATSU, Flayia Emi; TEODORO, Walcy Rosolia; ITEZEROTE, Ana Maria; SILVEIRA, Lizandre Keren Ramos da; SALEH, Samir; MARTINEZ, Carlos Augusto Real; RIBEIRO, Marcelo Lima; PEREIRA, Jose Aires; HOJAIJ, Flavio; ANDRADE, Mauro; JACOMO, Alfredo LuizA tendon is a mechanosensitive tissue that transmits muscle-derived forces to bones. Photobiomodulation (PBM), also known as low-level laser therapy (LLLT), has been used in therapeutic approaches in tendon lesions, but uncertainties regarding its mechanisms of action have prevented its widespread use. We investigated the response of PBM therapy in experimental lesions of the Achilles tendon in rats. Thirty adult male Wistar rats weighing 250 to 300 g were surgically submitted to bilateral partial transverse section of the Achilles tendon. The right tendon was treated with PBM, whereas the left tendon served as a control. On the third postoperative day, the rats were divided into three experimental groups consisting of ten rats each, which were treated with PBM (Konf, Aculas HB 750), 780 nm and 80 mW for 20 seconds, three times/week for 7, 14 and 28 days. The rats were sacrificed at the end of the therapeutic time period. The Sca-1 was examined by immunohistochemistry and histomorphometry, and COLA1, COLA2 and COLA3 gene expression was examined by qRT-PCR. COLA2 gene expression was higher in PBM treated tendons than in the control group. The histomorphometric analysis coincided with increased number of mesenchymal cells, characterized by Sca-1 expression in the lesion region (p<0.001). PBM effectively interferes in tendon tissue repair after injury by stimulating mesenchymal cell proliferation and the synthesis of collagen type II, which is suggested to provide structural support to the interstitial tissues during the healing process of the Achilles tendon. Further studies are needed to confirm the role of PBM in tendon healing.
- Is there something new regarding triceps brachii muscle insertion?(2020) AKAMATSU, Flavia Emi; NEGRAO, Jose Renato; RODRIGUES, Marcelo Bordalo; ITEZEROTE, Ana Maria; SALEH, Samir Omar; HOJAIJ, Flavio; ANDRADE, Mauro; JACOMO, Alfredo LuizPurpose: Previous studies have questioned whether the triceps brachii muscle tendon (TBMT) has a double or single insertion on the ulna. Aiming to provide an answer, we describe the anatomy of the TBMT and review a magnetic resonance imaging (MRI) series of the elbow. Methods: Forty-one elbows were dissected to assess the details of the triceps brachii insertion. Elbow plastination slices were analyzed to determine whether there was a space on the TBMT. Magnetic resonance imaging from the records of the authors were also obtained to demonstrate the appearance of the pre-tricipital space on MRI. Results: A virtual space on the medial aspect near the TBTM insertion site in the olecranon was consistently found on anatomic dissections. It was a distal pre-tricipital space. Magnetic resonance imaging demonstrated the appearance of the pre-tricipital space on MRI, and its extension was measured longitudinally either in elbow flexion or extension. There was no statistically significant difference between the measurements of this space in the right and left elbows or between flexion and extension (p > 0.05). The coefficient of variation was <10% for all measurements. Conclusion: Knowledge of this structure may be essential to avoid incorrect diagnosis and unnecessary therapeutic interventions.
- Evaluation of the Number of Goblet Cells in Crypt of Colonic Mucosa Submitted to Experimental Gastric Restriction(2022) AKAMATSU, Flavia E.; NUNES, Camila; FONTES, Luiz G.; ITEZEROTE, Ana M.; SALEH, Samir O.; HOJAIJ, Flavio; ANDRADE, Mauro; PEREIRA, Jose A.; MARTINEZ, Carlos A. R.; JACOMO, Alfredo L.
conferenceObject Radiofrequency promotes more collagen synthesis than low level laser in experimental tendineous lesion(2014) AKAMATSU, Flavia; TEODORO, Walcy; SALEH, Samir; HOJAIJ, Flavio; CAMILLO, Gina; MARTINEZ, Carlos; ANDRADE, Mauro; JACOMO, AlfredoconferenceObject Weight losing on gastric restriction in an animal model(2019) AKAMATSU, Flavia Emi; ITEZEROTE, Ana Maria; SALEH, Samir; HOJAIJ, Flavio; ANDRADE, Mauro; MARTINEZ, Carlos Augusto Real; JACOMO, Alfredo Luiz