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Wyszukujesz frazę "parathyroid adenoma" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Primary hyperparathyroidism on the example of a 33-year-old female patient with parathyroid adenoma
Autorzy:
Łach, Jarosław
Dyaczyński, Michał
Buczkowski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1391700.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
parathyroid hyperactivity
parathyroid adenoma
kidney stones
Opis:
Parathyroid hyperactivity is the state of over-production and PTH secretion [1]. The most common cause of primary hyperparathyroidism is parathyriod adenoma - about 80% of cases, the remaining are parathyroid hyperplasia around 15%cases [2] [3], and in 1-5% of cases, cancer [2] [3] [4] [5]. The disease is diagnosed inabout 40 people in 100,000 [5] [6] [3] [7]. The most common cause of adenoma is the mutation in gene MEN 1. Less than 5% of cases are chronichyperparathyroidism, which is a component of the MEN 1 MEN 2a endocrine adenocarcinoma syndrome [1]. Excess PTH in the body leads to increased mobilization of calcium from the bones, and henceincreased osteolysis, what also increases the absorption of calcium from thedigestive system, as well as an increased amount of phosphate excretion in the urine. Clinical picture of the disease is multiform and often runs in a latent form. Most often the diseaseoccurs in the form of osteoporosis, chronic recurrent kidney stones, and is also commonpyelonephritis on the basis of urolithiasis. The disease may be accompanied by: dysphagia, abdominal pain, metallic taste in the mouth, persistent constipation. In addition, from the systemnervous: dizziness and headaches, disturbances of consciousness. Arrhythmia the form of additional contractions and paroxysmal tachycardia. Osteolysis, osteoporosis and pathological fractures [1]. The purpose of this article is to bring closer to the reader case of 33 years old woman with primary hyperparathyroidism on the adenoma.
Źródło:
Polish Journal of Surgery; 2020, 92, 3; 55-61
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The comorbidity of papillary thyroid carcinoma and the primary hyperparathyroidism
Autorzy:
Podlasek, Robert
Bednarczyk, Grzegorz
Świder, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/454749.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
thyroid carcinoma
primary hyperparathyroidism parathyroid adenoma
Opis:
Introduction. The prevalence of papillary thyroid carcinoma (PTC) in patients with primary hyperparathyroidism (PHPT) is low, it can be estimated around 2 to 4%. For unknown reasons it is higher than the prevalence of PTC in the overall population. The authors analyse the comorbidity of PTC with PHPT on patients treated in their institution. Material and method. The analysis covered medical records of 885 patients subject to the thyroid resection procedure and 95 patients operated for PHPT, the procedures were performed in years 2005-2014. Results. In the above-mentioned period there were 121 patients operated due to a malignant thyroid tumour and there were 95 patients that had surgery for PHPT. There were 4 cases of comorbidity of PHPT with papillary thyroid cancer. Prevalence of PTC at the patients with PHPT was 4.2%. In two out of the four cases, both diseases were diagnosed prior to the procedure and the single appropriate surgery i.e. total thyroidectomy and excision of parathyroid adenoma was performed. In the other two cases false positive localisation of parathyroid adenoma occurred due to metastatic cancerous lesions in cervical lymph nodes. The diagnosis of PTC was made postoperatively based on surgical specimen examination. Second surgical procedure appropriate for this diagnosis was necessary in both cases. Conclusions. The comorbidity of PHPT and PTC is clinically important and should be taken into account in the case of patients with PHPT and thyroid tumours. There is the possibility of false positive localization of parathyroid adenoma in the case of metastatic cancerous lesions in cervical lymph nodes
Źródło:
European Journal of Clinical and Experimental Medicine; 2018, 2; 103-108
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oxidative stress in proliferative lesions of parathyroid gland
Autorzy:
Deska, Mariusz
Romuk, Ewa
Segiet, Oliwia
Polczyk, Joanna
Buła, Grzegorz
Gawrychowski, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/1392364.pdf
Data publikacji:
2019
Wydawca:
Index Copernicus International
Tematy:
oxidative stress
primary hyperparathyroidism
parathyroid hyperplasia
parathyroid adenoma
Opis:
Background: Primary hyperparathyroidism (PHPT) is one of the most common endocrine disorders and defined as excessive secretion of parathormone. PHPT is a risk factor of several cardiovascular diseases, which could be caused by alterations in oxidant-antioxidant balance. Materials and methods: Blood serum collected from 52 consecutive patients with PHPT treated surgically constituted our study material, whereas 36 healthy volunteers were our control group. Oxidative stress was evaluated in both patients and control subjects by assessment of malondialdehyde (MDA) and lipid hydroperoxides (LHP). Antioxidants were evaluated by the measurement of superoxide dismutase (SOD), ceruloplasmin (CER), catalase (CAT), sulfhydryl (SH) groups, glutathione (GSH), glutathione peroxidase (GSH-Px), glutathione transferase activity (GST) and glutathione reductase (GR). Moreover, total antioxidant capacity (TAC) and total oxidative status (TOS) were measured and oxidative stress index (OSI) was calculated. Results: OSI was increased in patients with PHPT when compared to normal controls, whereas TAC was lower in PHPT. The levels of CER, MnSOD, GR, SH groups and MDA were significantly decreased in PHPT. The levels of serum LHP, catalase and SOD were significantly higher in patients with PHPT than in healthy patients. The erythrocyte CAT activity and GST were significantly increased in patients after parathyroidectomy. The erythrocyte GR and GPx were up-regulated postoperatively, whereas SOD activity decreased. Conclusions: In PHPT there are several alterations in the balance between the production of reactive oxygen species and antioxidant defense system.
Źródło:
Polish Journal of Surgery; 2019, 91, 1; 29-34
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The profile of ErbB/Her family genes copy number assessed by real-time PCR in parathyroid adenoma and hyperplasia associated with sporadic primary hyperparathyroidism
Autorzy:
Bednarz, Natalia
Błaut, Krzysztof
Sworczak, Krzysztof
Osęka, Tomasz
Bielawski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1040637.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
parathyroid hyperplasia
hyperparathyroidism
parathyroid adenoma
ErbB/Her
quantitative real-time PCR
Opis:
Hyperparathyroidism (pHPT) is a relatively frequent endocrinopathy, however, the molecular mechanisms of its etiology remain poorly understood. This disorder is mainly associated with benign tumours (adenoma) and hyperplasia of the parathyroid, hence, the focus is directed also to genes that are likely to be involved in carcinogenesis. Among such genes are ErbB/Her family genes already used in diagnosis of other tumours (e.g., breast carcinoma) and reported also to play a role in development of endocrine lesions. So far, ErbB-1/Her-1/EGFR expression has been detected in pHPT-associated adenomas and hyperplasia as opposed to no expression in normal parathyroid tissue. Moreover, losses or gains of the fragments of chromosomes where ErbB/Her genes are located have been reported. In this study, the gene dosage of ErbB/Her family genes were determined for the first time in parathyroid adenomas, hyperplasia and morphologically unchanged tissue in order to establish their putative role in the development of the disease. Genomic DNA was isolated from 33 patients with sporadic hyperparathyroidism and the gene copy numbers were assessed using real-time PCR. The ErbB/Her genes' profile was unaltered in most of the examined samples. Two low-level amplifications of ErbB-1/Her-1/EGFR gene, two deletions of ErbB-2/Her-2, and six deletions of ErbB-4/Her-4 were found. The ErbB-3/Her-3 gene remained unaffected. No correlation with clinical parameters was found for any gene. Both the low number of alterations and a lack of their associations with clinical parameters exclude the prognostic value of the ErbB/Her genes family in parathyroid tumourigenesis. Nevertheless, the ErbB-4/Her-4 deletions seem to be interesting for further investigations, especially in the context of PTH secretion.
Źródło:
Acta Biochimica Polonica; 2009, 56, 1; 83-88
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ śródoperacyjnego radiomapowania nuklearnego na czas trwania zabiegu w paratyreoidektomii
The influence of intraoperative nuclear radio-mapping on the duration of the surgical procedure in parathyroidectomy
Autorzy:
Sagan, D.
Rejdak, K.
Powiązania:
https://bibliotekanauki.pl/articles/262042.pdf
Data publikacji:
2010
Wydawca:
Politechnika Wrocławska. Wydział Podstawowych Problemów Techniki. Katedra Inżynierii Biomedycznej
Tematy:
chirurgia
gruczolak przytarczyc
nadczynność przytarczyc
przytarczyce
paratyreoidektomia
radiomapowanie nuklearne
surgery
parathyroid adenoma
hyperparathyroidism
parathyroid glands
parathyroidectomy
nuclear radio-mapping
Opis:
Śródoperacyjna identyfikacja nadczynnej tkanki przytarczyc stanowi jedno z największych wyzwań dla chirurgów wykonujących paratyreoidektomie. Przełomem w chirurgii przytarczyc może stać się nowa metoda śródoperacyjnego radiomapowania nuklearnego. Jest ona oparta na pomiarze emisji promieniowania gamma w czasie rzeczywistym przez tkanki w polu operacyjnym po uprzednim podaniu 99mTc MIBI (99mTc-methoxyisobutylisonitrile - 99mTc-metoksyizobutylizonitryl), wychwytywanego i akumulowanego wybiórczo przez tkankę przytarczyc. Celem artykułu była analiza wpływu zastosowania śródoperacyjnego radiomapowania nuklearnego na czas trwania zabiegu paratyreoidektomii. Badania przeprowadzono metodą analizy retrospektywnej jedno- i wieloczynnikowej w grupie 20 chorych poddanych zabiegom paratyreoidektomii, uwzględniając potencjalne czynniki kliniczne wpływające na czas zabiegu jako wejściowe zmienne niezależne. Jednoczynnikowa analiza statystyczna wykazała, że zastosowanie śródoperacyjnego radiomapowania nuklearnego skraca czas trwania zabiegu o średnio 60,38±7,47 min (p = 0,0459). Natomiast nadczynność wtórna, konieczność wykonania częściowej sternotomii oraz reoperacja przedłużały średni czas trwania zabiegu o odpowiednio: 88,44±40,21 min; 98,06±57,91 min oraz 74,33±33,92 min (p = 0,0112; p = 0,0409 oraz p = 0,0234; odpowiednio). Analiza wieloczynnikowa z zastosowaniem modelu regresji wielorakiej zidentyfikowała radiomapowanie nuklearne, sternotomię oraz reoperację jako zmienne niezależne istotnie statystycznie wpływające na czas trwania paratyreoidektomii. Uzyskane wyniki badań wykazały, że śródoperacyjne radiomapowanie nuklearne jest skuteczną metodą wspomagającą postępowanie chirurgiczne w zabiegach paratyreoidektomii. Dzięki ukierunkowaniu działania operacyjnego in vivo oraz zapewnieniu potwierdzenia tożsamości nadczynnej tkanki gruczolaka ex vivo natychmiast po jego resekcji metoda ta pozwala znacznie skrócić czas trwania paratyreoidektomii.
Thorough localization and confirmation of hyperactive parathyroid tissue is one of the most difficult tasks for surgeons performing parathyroidectomies. Therefore, the need for an intraoperative aid during parathyroidectomy is currently widely accepted. An instant detection of radioactivity after 99mTc MIBI injection, which is accumulated in parathyroid glands, called nuclear radio-mapping, has become a novel technique applied in these operations. We aimed to assess the utility of this new technique as one of potential factors influencing the duration of parathyroidectomy. We retrospectively analyzed the influence of chosen clinical factors on the duration of the surgical procedure, using univariate and multivariate statistical methods in a group of 20 patients who underwent parathyroidectomy. The results of univariate analysis showed that using nuclear radio-mapping decreased the mean duration of parathyroidectomy by mean 60.38±7.47 min (p = 0.0459). However, in patients with secondary hyperparathyroidism, sternotomy and reoperation, the mean procedure duration increased by mean 88.44±40.21 min; 98.06±57.91 min and 74.33±33.92 min (p = 0.0112; p = 0.0409 and p = 0.0234) respectively. Multivariate analysis showed that nuclear radio-mapping, sternotomy and reoperation independently influenced the duration of parathyroidectomy. Concluding, nuclear radio-mapping not only guides the resection in vivo, but also allows to confirm the identity of removed parathyroid ex vivo and to decrease the duration of parathyroidectomy. This technique is a useful and efficient intraoperative adjunct in parathyroid surgery.
Źródło:
Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna; 2010, 16, 3; 280-284
1234-5563
Pojawia się w:
Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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