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Wyszukujesz frazę "salivary glands" wg kryterium: Temat

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Synovial sarcoma of the parotid gland – case report
    Autorzy:
    Zagacki, Dawid
    Niemczyk, Kazimierz
    Bruzgielewicz, Antoni
    Morawiec-Sztandera, Alina
    Braun, Marcin
    Niedźwiecka, Izabela
    Kubiak, Marcin
    Kaczmarczyk, Dariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1399825.pdf
    Data publikacji:
    2018
    Wydawca:
    Index Copernicus International
    Tematy:
    salivary glands
    synovial sarcoma
    parapharyngeal space
    Opis:
    Salivary gland neoplasms represent about 3% of head and neck tumors. The area most affected by tumors is parotid salivary gland (standing for about 80% of all cases). The most common type of the neoplasm is pleomorphic adenoma (which accounts for 80-90% of all diagnoses). One of the rare diagnoses in this region comprises synovial sarcoma, as it mainly occurs in lower extremities. In head and neck region it accounts for about 3% of all diagnoses. About 20 cases have been described in this region, so far. The etiology of the disease remains unknown, but there are reports linking synovial sarcoma with the rearrangement in the gene responsible for chromosomal transcription t(X;18) (p11,q11).
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2018, 7, 3; 1-5
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Labial salivary gland biopsy in the diagnosis of Sjögren’s syndrome
    Autorzy:
    Błochowiak, Katarzyna
    Sokalski, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/454844.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
    Tematy:
    biopsy
    labial glands
    salivary glands
    Sjögren’s syndrome
    Opis:
    Introduction. Labial salivary gland biopsy is used for diagnosis of Sjögren’s syndrome (SS) and lymphoma accompanying SS. Aim. The aim of this study was to present the main techniques used for taking labial salivary gland biopsies in the diagnosis of SS with respect to their advantages, histologic criteria, validation, complications, and their usefulness for diagnostic procedures, monitoring disease progression, and treatment evaluation. Material and methods. This study is based on analysis of literature. Results. The microscopic confirmation of SS is based on the presence of focal lymphocytic sialadenitis (FLS) with a focus score ≥1 per 4 mm2 of glandular tissue. A lymphocytic focus is defined as a dense aggregate of 50 or more lymphocytes adjacent to normal-appearing mucous acini in salivary gland lobules that lacked ductal dilatation. Other histopathological features of SS are lymphoepithelial lesions and a relative decrease of <70% IgA + plasma cells. Labial salivary gland biopsy is characterized by high specificity, a positive predictive value, and an average sensitivity of 79% in SS. Conclusion. It can be also valuable in diagnosing B-cell mucosa-associated lymphoid tissue (MALT) lymphomas but it is not recommended for the monitoring of SS progression and the effectiveness of the treatment. Persistent lower lip hypoesthesia is the most severe complication of labial salivary gland biopsy.
    Źródło:
    European Journal of Clinical and Experimental Medicine; 2019, 2; 162-168
    2544-2406
    2544-1361
    Pojawia się w:
    European Journal of Clinical and Experimental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of lipopolysaccharide on the development of oxidative-nitrosative stress in salivary glands and soft periodontal tissues of rats under conditions of water avoidance stress
    Autorzy:
    Pletnov, Vadym
    Tkachenko, Olexiy
    Akimov, Oleh
    Mykytenko, Andrii
    Powiązania:
    https://bibliotekanauki.pl/articles/40570868.pdf
    Data publikacji:
    2024-06-30
    Wydawca:
    Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
    Tematy:
    bacterial lipopolysaccharide
    nitric oxide
    salivary glands
    soft periodontal tissues
    water avoidance stress
    Opis:
    Introduction and aim. Violation in the salivary glands will inevitably cause changes in periodontium, and periodontitis can disrupt the functioning of the salivary glands. The purpose of the work is to evaluate changes in NO-synthase and arginase activities, pro- and antioxidant balance in rat salivary glands and soft periodontal tissues during administration of bacterial lipopolysaccharide (LPS) and water avoidance stress (WAS) modeling. Material and methods. The experiment was performed on 24 rats. The animals were divided into 4 groups: control, WAS, animals injected intraperitoneally with 0.4 μg/kg of bacterial LPS of Salmonella typhi, WAS+LPS. Results. Water avoidance stress led to decrease of inducible NO-synthase (iNOS) activity in salivary glands by 1.63 times, but decreased arginase activity by 1.15 times, superoxide production increased by 1.53 times, catalase activity decreased by 1.2 times, and malonic dialdehyde (MDA) increased by 1.19 times compared to the control. Lipopolysaccharide led to increase of constitutive NO-synthases (cNOS) activity in salivary glands by 1.48 times, but decreased arginase activity by 6.15 times, catalase activity increased by 2.6 times and superoxide dismutase activity decreased by 2.74 times, and MDA increased by 6.84 times compared to the control. Water avoidance stress + LPS in salivary glands led to decrease of cNOS and arginase activity by 1.09 and 1.19 times, respectively, superoxide production increased by 1.88 times, catalase and superoxide dismutase activity decreased by 1.06 times and 1.34 times, respectively, and MDA increased by 2.44 times compared to the control. Water avoidance stress led to increase of iNOS activity in periodontium by 1.44 times and arginase activity decreased by 1.37 times, superoxide production increased 1.32 times, catalase activity and superoxide dismutase activities decreased by 1.27 times and by 1.53 times, respectively, and MDA increased by 1.31 times compared to the control. Lipopolysaccharide led to increase of iNOS activity in the periodontium by 3.88 times, arginase activity decreased by 2.69 times, superoxide production increased 1.64 times, catalase activity increased by 4.32 times, and MDA increased by 4.51 times compared to the control. Water avoidance stress + LPS in periodontium led to increase of iNOS and cNOS activities by 1.95 times and 1.53, respectively, arginase activity decreased by 1.39 times, superoxide production increased 1.66 times, catalase activity increased by 1.11 times, and MDA increased by 1.53 times compared to the control. Conclusion. The combination of LPS and WAS leads to changes in NO production and oxidative stress in salivary glands and the periodontium.
    Źródło:
    European Journal of Clinical and Experimental Medicine; 2024, 22, 2; 404-416
    2544-2406
    2544-1361
    Pojawia się w:
    European Journal of Clinical and Experimental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The spectrum of non-characteristic oral manifestations in COVID-19 – a scoping brief commentary
    Autorzy:
    Hüpsch-Marzec, Hanna
    Dziedzic, Arkadiusz
    Skaba, Dariusz
    Tanasiewicz, Marta
    Powiązania:
    https://bibliotekanauki.pl/articles/2108220.pdf
    Data publikacji:
    2021-12-22
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    SARS-CoV-2
    COVID-19
    oral lesions
    oral manifestations
    oral cavity
    salivary glands
    Opis:
    Virus-induced oral abnormalities, occurring especially in severe COVID-19 cases of hospitalized patients, have various characteristics and clinical features being, either directly or indirectly, related to SARS-CoV-2 infection. Deregulation of the immune system as a result of SARS-CoV-2 infection may lead to the impairment of the normal defense pathway in the SARS-CoV-2 positive patients. This scoping mini-review is aimed to critically appraise the existing evidence concerning the potential link between COVID-19 condition and abnormal manifestations within oral cavity, affecting oral mucosa, salivary glands and sensory elements. COVID-induced oral mucosa manifestations, with various clinical aspects, are likely to occur as coinfections and secondary symptoms, as immune system imbalance is per se a causative factor of secondary manifestations. Oral mucosal lesions related to SARS-CoV-2 infection do not seem to demonstrate gender predilection, with the average reported age around 50 years of age. They include mainly white and erythematous plaques, ulcers, blisters, petechiae. The affected intraoral areas were mainly: tongue, palate, lips, gingiva, and buccal mucosa. The “aggressive” therapies utilized to treat COVID-19, including drug interactions may aggravate or initiate OMLs pathologies. Neglected oral hygiene or partial or complete abandonment of oral hygiene during intensive hospitalization constitutes an independent factor promoting a wide range of oral pathologies. In addition, stress factor indirectly impairs functioning of the immune system. Oral mucosa lesions occurring in COVID-19 cases present with a wide variation of non-characteristic features. These intraoral, soft tissues abnormalities seem to be reversible and transient. A potential impact of severe oral pathologies to systemic health resulting from SARS-CoV-2 infection, along with associated poor oral hygiene should not be ignored, predominantly in seriously ill patients hospitalized in intensive care units.
    Źródło:
    Medycyna Pracy; 2021, 72, 6; 685-692
    0465-5893
    2353-1339
    Pojawia się w:
    Medycyna Pracy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lymphoid tissue neoplasms in the neck region – epidemiological and clinical analysis over 15 years
    Autorzy:
    Rzepakowska, Anna
    Zwierzyńska, Klaudyna
    Osuch-Wójcikiewicz, Ewa
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1398538.pdf
    Data publikacji:
    2017
    Wydawca:
    Index Copernicus International
    Tematy:
    lymphoid tissue neoplasms
    non-Hodgkin's lymphoma
    Hodgkin's lymphoma
    neck lymph nodes
    salivary glands
    Opis:
    Aim: Epidemiological and clinical analysis of lymphoid tissue neoplasms in the neck region over a 15-year period. Material: There was performed retrospective analysis of 97 patients, aged 17 to 88 years, mean age of 60.3 years. The analysis included data from subjective study, physical examination, image and histopathological studies Results: Almost all cases were lymphoid neoplasms - 95 patients (98%). B cell lymphoma was the most commonly diagnosed lymphoma – 74 cases (76%), followed by Hodgkin's lymphoma- 19 cases (20%). Only two patients had T-cell lymphoma (2%). There was observed prevalence among women, K: M ratio for the whole group was 51: 46, while male predominance was reported in Hodgkin's lymphoma patients (K: M = 7: 12). Over the 15-year period, there was an increase in the number of lymphoid tumors. The most common location on the neck were lymph nodes - 71 (73.2%). Extranodal localizations (26.8%) were most often associated with salivary glands: parotid and submandibular involvement and with the dominant lymphoma of the marginal zone MALT (14 cases). In 57% of patients the fine needle aspiration biopsy (FNAB) results were false, with positive results only in 32% of patients. Conclusions: Tumors from lymphoid tissue in the neck region are most commonly B-cell lymphomas or Hodgkin,s lymphomas. Non-specific clinical signs and non-specific radiological images, as well as non-diagnostic results o FNAB, make it difficult to effectively differentiate lymphomas with cancer metastasis in neck lymph nodes. Histopathology results of the excised lymph nodes remains a standard for lymphoma diagnosis.
    Źródło:
    Polish Journal of Otolaryngology; 2017, 71, 3; 1-9
    0030-6657
    2300-8423
    Pojawia się w:
    Polish Journal of Otolaryngology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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