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Ostrowska M, Kacała P, Onolememen D, Vaughan-Lane K, Sisily Joseph A, Ostrowski A, Pietruszewska W, Banaszewski J, Wróbel MJ. To trust or not to trust: evaluating the reliability and safety of AI responses to laryngeal cancer queries. Eur Arch Otorhinolaryngol 2024:10.1007/s00405-024-08643-8. [PMID: 38652298 DOI: 10.1007/s00405-024-08643-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/26/2024] [Indexed: 04/25/2024]
Abstract
PURPOSE As online health information-seeking surges, concerns mount over the quality and safety of accessible content, potentially leading to patient harm through misinformation. On one hand, the emergence of Artificial Intelligence (AI) in healthcare could prevent it; on the other hand, questions raise regarding the quality and safety of the medical information provided. As laryngeal cancer is a prevalent head and neck malignancy, this study aims to evaluate the utility and safety of three large language models (LLMs) as sources of patient information about laryngeal cancer. METHODS A cross-sectional study was conducted using three LLMs (ChatGPT 3.5, ChatGPT 4.0, and Bard). A questionnaire comprising 36 inquiries about laryngeal cancer was categorised into diagnosis (11 questions), treatment (9 questions), novelties and upcoming treatments (4 questions), controversies (8 questions), and sources of information (4 questions). The population of reviewers consisted of 3 groups, including ENT specialists, junior physicians, and non-medicals, who graded the responses. Each physician evaluated each question twice for each model, while non-medicals only once. Everyone was blinded to the model type, and the question order was shuffled. Outcome evaluations were based on a safety score (1-3) and a Global Quality Score (GQS, 1-5). Results were compared between LLMs. The study included iterative assessments and statistical validations. RESULTS Analysis revealed that ChatGPT 3.5 scored highest in both safety (mean: 2.70) and GQS (mean: 3.95). ChatGPT 4.0 and Bard had lower safety scores of 2.56 and 2.42, respectively, with corresponding quality scores of 3.65 and 3.38. Inter-rater reliability was consistent, with less than 3% discrepancy. About 4.2% of responses fell into the lowest safety category (1), particularly in the novelty category. Non-medical reviewers' quality assessments correlated moderately (r = 0.67) with response length. CONCLUSIONS LLMs can be valuable resources for patients seeking information on laryngeal cancer. ChatGPT 3.5 provided the most reliable and safe responses among the models evaluated.
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Affiliation(s)
- Magdalena Ostrowska
- Department of Otolaryngology and Laryngological Oncology, Collegium Medicum, Nicolaus Copernicus University in Torun, ul.Marie Sklodowskiej-Curie 9, 85-094, Bydgoszcz, Poland
| | - Paulina Kacała
- ENT Scientific Club, Department of Otolaryngology and Laryngological Oncology, Collegium Medicum, Nicolaus Copernicus University in Torun, ul.Marie Sklodowskiej-Curie 9, 85-094, Bydgoszcz, Poland
| | - Deborah Onolememen
- ENT Scientific Club, Department of Otolaryngology and Laryngological Oncology, Collegium Medicum, Nicolaus Copernicus University in Torun, ul.Marie Sklodowskiej-Curie 9, 85-094, Bydgoszcz, Poland
| | - Katie Vaughan-Lane
- ENT Scientific Club, Department of Otolaryngology and Laryngological Oncology, Collegium Medicum, Nicolaus Copernicus University in Torun, ul.Marie Sklodowskiej-Curie 9, 85-094, Bydgoszcz, Poland.
| | - Anitta Sisily Joseph
- ENT Scientific Club, Department of Otolaryngology and Laryngological Oncology, Collegium Medicum, Nicolaus Copernicus University in Torun, ul.Marie Sklodowskiej-Curie 9, 85-094, Bydgoszcz, Poland
| | - Adam Ostrowski
- Department of Urology, Collegium Medicum, Nicolaus Copernicus University in Torun, ul.Marie Sklodowskiej-Curie 9, 85-094, Bydgoszcz, Poland
| | - Wioletta Pietruszewska
- Department of Otolaryngology, Laryngological Oncology, Audiology and Phoniatrics, Medical University of Lodz, ul Żeromskiego 113, 90-549, Lodz, Poland
| | - Jacek Banaszewski
- Department of Otolaryngology, Head and Neck Oncology, Poznan University of Medical Science, ul Przybyszewskiego 49, 60-355, Poznań, Poland
| | - Maciej J Wróbel
- Department of Otolaryngology and Laryngological Oncology, Collegium Medicum, Nicolaus Copernicus University in Torun, ul.Marie Sklodowskiej-Curie 9, 85-094, Bydgoszcz, Poland
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Ostrowska M, Sisily Joseph A, Wróbel MJ. Delayed Hearing Recovery After Transverse Temporal Bone Fracture with Otic Capsule violation - Case Report and Literature Review. Indian J Otolaryngol Head Neck Surg 2024; 76:1114-1117. [PMID: 38440600 PMCID: PMC10908707 DOI: 10.1007/s12070-023-04145-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 03/06/2024] Open
Abstract
We present a patient who suffered a temporal bone fracture (TBF) encompassing the bony labyrinth. Sensorineural hearing loss was confirmed with an unfavorable prognosis for recovery. Thirteen years later, there is regression of the hearing loss.
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Affiliation(s)
- Magdalena Ostrowska
- Department of Otolaryngology, Collegium Medicum Nicolaus Copernicus University, Ul. Marie Sklodowskiej-Curie 9, Bydgoszcz, 85-094 Poland
| | - Anitta Sisily Joseph
- Department of Otolaryngology, Collegium Medicum Nicolaus Copernicus University, Ul. Marie Sklodowskiej-Curie 9, Bydgoszcz, 85-094 Poland
| | - Maciej J. Wróbel
- Department of Otolaryngology, Collegium Medicum Nicolaus Copernicus University, Ul. Marie Sklodowskiej-Curie 9, Bydgoszcz, 85-094 Poland
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Zgliczyńska M, Ostrowska M, Żebrowska K, Szymusik I, Kowalski K, Leszczyńska D, Kosińska-Kaczyńska K. Determination of vitamin D status in singleton and twin gestations using CLIA and LC-MS/MS. Endocr Connect 2023; 12:e230201. [PMID: 37610766 PMCID: PMC10563645 DOI: 10.1530/ec-23-0201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 08/23/2023] [Indexed: 08/24/2023]
Abstract
Objective Vitamin D plays an important role during pregnancy. The aim was to compare vitamin D status in a group of singleton (SP) and twin pregnancies (TP) using two diagnostic methods: chemiluminescence immunoassay (CLIA) and liquid chromatography with tandem mass spectrometry (LC-MS/MS). Design This is a cross-sectional study. Methods The study was conducted in the population of SP and TP at the gestational age above 20 + 0 at the Bielanski Hospital in Warsaw, Poland, between October 2020 and January 2023. All patients had their venous blood samples collected and were given an original survey containing questions on demography and vitamin D supplementation. Results The study group included 53 Caucasian women with SP and 78 with TP aged from 21 to 47. Considering LC-MS/MS, patients with TP had lower concentrations of 25-hydroxyvitamin D (25(OH)D) than patients with SP. However, no significant difference was observed in the frequency of the occurrence of vitamin D deficiency (25(OH)D < 30 ng/mL). In both groups, the levels obtained with CLIA were significantly lower than in case of LC-MS/MS, however, strongly correlated. The intermethod agreement accounted for 52.4% and the Cohen's kappa coefficient was 0.142. Conclusions The concentration of 25(OH)D in pregnant women depends on the type of gestation (SP/TP) and on the diagnostic methods used (CLIA/LC-MS/MS). Based on LC-MS/MS, the incidence of vitamin D deficiency was low in our group and no differences occurred in its frequency between SP and TP. The intermethod agreement between CLIA and LC-MS/MS on the detection of vitamin D deficiency was low. Significance statement This is the first study to compare the concentration of 25(OH)D levels between SP and TP using two methods: CLIA and the gold standard - LC-MS/MS. Based on LC-MS/MS, a low incidence of vitamin D deficiency was observed in our group, in which the vast majority of patients took cholecalciferol supplements. Moreover, there were no differences in its frequency between SP and TP. However, the 25(OH)D level was significantly lower in TP. The intermethod agreement between CLIA and LC-MS/MS on the detection of vitamin D deficiency was low, which is associated with substantial clinical implications.
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Affiliation(s)
- Magdalena Zgliczyńska
- Department of Obstetrics, Perinatology and Neonatology, Centre of Postgraduate Medical Education, Cegłowska, Warsaw, Poland
| | - Magdalena Ostrowska
- Department of Endocrinology, Centre of Postgraduate Medical Education, Cegłowska, Warsaw, Poland
| | - Kinga Żebrowska
- Department of Obstetrics, Perinatology and Neonatology, Centre of Postgraduate Medical Education, Cegłowska, Warsaw, Poland
| | - Iwona Szymusik
- Department of Obstetrics, Perinatology and Neonatology, Centre of Postgraduate Medical Education, Cegłowska, Warsaw, Poland
| | | | - Dorota Leszczyńska
- Department of Endocrinology, Centre of Postgraduate Medical Education, Cegłowska, Warsaw, Poland
| | - Katarzyna Kosińska-Kaczyńska
- Department of Obstetrics, Perinatology and Neonatology, Centre of Postgraduate Medical Education, Cegłowska, Warsaw, Poland
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Wróbel MJ, Czerniejewska-Wolska H, Madhavan M, Kluczyński Ł, Ostrowska M, Marzec M. Do face masks affect the way we hear? Otolaryngol Pol 2023; 78:31-35. [PMID: 38332708 DOI: 10.5604/01.3001.0053.8592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
<b><br>Aim:</b> The aim of the study was to assess if wearing a face mask, hung from the ears, had an effect on the understanding of speech and the perception of surrounding sounds.</br> <b><br>Materials and Methods:</b> Assessment of auditory perception using verbal noise audiometry in two clinical conditions; without a face mask and with a face mask. To assess the auditory perception ability, two parameters were measured; word recognition score (WRS) and sound intensity at maximal WRS.</br> <b><br>Results:</b> Without wearing facial masks, the maximum values of WRS for the study group ranged from 75% to 100% with 52% of respondents achieved WRS 100%. While wearing face masks, the highest calculated WRS for the study group ranged from 80% to 100%, with 32% of individuals achieved WRS of 100%.</br> <b><br>Conclusion:</b> The wearing of face masks do not change the speech recognition scores. This may indicate a stronger role of psycho-sociological aspects of hearing difficulties during the Covid-19 pandemic.</br>.
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Affiliation(s)
- Maciej J Wróbel
- Department of Otolaryngology and Laryngological Oncology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Poland
| | - Hanna Czerniejewska-Wolska
- Department of Otolaryngology and Laryngological Oncology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Poland
| | - Maya Madhavan
- Department of Otolaryngology and Laryngological Oncology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, ENT Scientific Club at the Department of Otolaryngology and Laryngological Oncology, Collegium Medicum, Bydgoszcz, Poland
| | - Łukasz Kluczyński
- Department of Otolaryngology and Laryngological Oncology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Poland
| | - Magdalena Ostrowska
- Department of Otolaryngology and Laryngological Oncology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Poland
| | - Maria Marzec
- Department of Otolaryngology and Laryngological Oncology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Poland
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Ostrowska M, Wróbel MJ. Cerebrospinal Fluid Rhinorrhea as the First Symptom of Metastatic Prostate Adenocarcinoma. Ear Nose Throat J 2023; 102:NP466-NP469. [PMID: 34037491 DOI: 10.1177/01455613211016710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The most common cause of cerebrospinal fluid (CSF) rhinorrhoea is damage to the skull base with a dura mater's rupture due to an accident or an iatrogenic injury. This applies to over 96% of cases. Other possibilities that can lead to CSF leakage are neoplasms of the nasal cavity, paranasal sinuses, and nasopharynx. Although prostate cancer spreads to bones, cranial metastases to paranasal sinuses are extremely rare. We present a case of an 83-year-old patient with CSF leakage due to infiltrating metastatic prostate cancer. Cerebrospinal fluid rhinorrhea turned out to be the first symptom of prostate cancer metastasis. Diagnostic and treatment strategies are presented in the discussion.
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Affiliation(s)
- Magdalena Ostrowska
- Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Maciej J Wróbel
- Department of Otolaryngology and Laryngological Oncology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
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Stelmachowska-Banaś M, Ostrowska M, Goszczyński T, Kowalski K, Korbonits M, Kapuścińska R, Zgliczyński W, Glinicki P. Macro-GH - a clinical entity causing a diagnostic challenge - a case report. Clin Chim Acta 2023; 546:117392. [PMID: 37187223 DOI: 10.1016/j.cca.2023.117392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 05/17/2023]
Abstract
AIM Presentation of a new case of a patient with macro-GH, that may interfere with different GH assays leading to false-positive results in serum samples. CASE PRESENTATION A 61-year-old female was referred with a pituitary macroadenoma and elevated growth hormone levels The laboratory tests showed increased fasting GH level, measured by a sandwich chemiluminescence immunoassay (LIAISON® XL) without suppression on oral glucose tolerance test and normal IGF-1. The patient did not have the typical signs and symptoms of acromegaly. The patient underwent a transsphenoidal resection of a pituitary tumor, showing only α-subunit immunostaining. Postoperative GH levels remained elevated. An interference in the determination of GH level was suspected. GH was analyzed by three different immunoassays, UniCel DxI 600, Cobas e411 and hGH-IRMA. Heterophilic antibodies and rheumatoid factor were not detected in serum sample. GH recovery after precipitation with 25% polyethylene glycol (PEG) was 12%. Size-exclusion chromatography confirmed the presence of macro-GH in serum sample. CONCLUSION If results of laboratory tests are not consistent with the clinical findings, the presence of an interference within immunochemical assays could be suspected. To identify interference caused by the macro-GH, the PEG method and size-exclusion chromatography should be used.
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Affiliation(s)
| | - Magdalena Ostrowska
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland.
| | - Tomasz Goszczyński
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, Wrocław, Poland.
| | | | - Márta Korbonits
- Department of Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine, Queen Mary University of London, London, UK.
| | - Renata Kapuścińska
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland.
| | - Wojciech Zgliczyński
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland.
| | - Piotr Glinicki
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland.
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Kulik K, Brzóska R, Mazurek E, Ostrowska M, Ostrowski A, Kowalski F, Wilamowski J, Drewa T, Adamowicz J, Juszczak K. Feasibility and accuracy of prostate cancer risk calculators in prediction of prostate cancer, extraprostatic extension as well as the risk of lymph nodes metastasis. Cent European J Urol 2023; 76:20-24. [PMID: 37064260 PMCID: PMC10091896 DOI: 10.5173/ceju.2023.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/22/2022] [Accepted: 01/01/2023] [Indexed: 03/08/2023] Open
Abstract
Introduction The aim of this article was to evaluate the accuracy of European Randomized study of Screening for Prostate Cancer (ERSPC 4) and Prostate Cancer Prevention Trial (PCPT 2.0) risk calculator on predicting high-grade prostate cancer (HGPCa) and accuracy of Partin and Briganti nomograms on organ confined (OC) or extraprostatic cancer (EXP), seminal vesicles invasion (SVI) and risk of lymph nodes metastasis. Material and methods A cohort of 269 men aged between 44-84 years, who underwent radical prostatectomy was retrospectively analysed. Based on estimated calculator risk, patients were divided into risk groups: low (LR), medium (MR) and high (HR). Results obtained with calculators were compared to post-surgical final pathology outcome. Results In ERPSC4, the average risk for HGPC was LR = 5%, MR = 21%, and HR = 64%. In PCPT 2.0, the average risk for HG was: LR - 8%, MR - 14%, and HR - 30%. In the final results, HGPC was observed in: LR = 29%, MR = 67%, and HR = 81%. In Partin, LNI was estimated to occur in: LR = 1%, MR = 2%, and HR = 7.5% and in Briganti: LR = 1.8%, MR = 11.4%, and HR = 44.2% while finally it was found in: LR = 1.3%, MR = 0%, and HR = 11.6%. Conclusions ERPSC 4 and PCPT 2.0 corresponded well with each other as well as Partin and Briganti. ERPSC 4 was more accurate in predicting HGPC than PCPT 2.0. Partin was more accurate as for LNI than Briganti. In this study group a large underestimation was observed in reference to Gleason grade.
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Affiliation(s)
- Kacper Kulik
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Rafał Brzóska
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Ewelina Mazurek
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Magdalena Ostrowska
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Adam Ostrowski
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Filip Kowalski
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Jacek Wilamowski
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Tomasz Drewa
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Jan Adamowicz
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Kajetan Juszczak
- Department of Urology and Andrology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
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Leszczyńska D, Szatko A, Kowalski K, Raczkiewicz D, Ostrowska M, Misiorowski W, Zgliczyński W, Glinicki P. The Effect of a Single High Dose of Vitamin D on Serum Levels of Its Metabolites in the Elderly. Front Biosci (Landmark Ed) 2022; 27:289. [PMID: 36336861 DOI: 10.31083/j.fbl2710289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/24/2022] [Accepted: 09/14/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Vitamin D is a dietary micronutrient responsible for calcium and phosphorus metabolism and multiple extraskeletal actions. The assessment of vitamin D status is commonly based on measurement of 25(OH)D total concentration in serum. However, the usage of liquid chromatography with tandem mass spectrometry (LC-MS/MS) technique allows to reliably assess a panel of vitamin D metabolites in serum or plasma, which may help to investigate the metabolic paths of vitamin D, especially in populations at risk of deficiency. METHODS A randomized, two-arms, open study was conducted on 58 patients (28 female and 30 male; aged from 61 to 96 years old). The primary aim was to assess the effects of a single, high, oral dose of vitamin D3 (120,000 IU) on serum 25(OH)D3, 25(OH)D2, 24,25(OH)2D3, 3-epi-25(OH)D3, 1,25(OH)2D3, 24,25(OH)2D3/25(OH)D3 ratio, and 25(OH)D3/3-epi-25(OH)D3 ratio concentration (measured by LC-MS/MS) at baseline, 3 days and 7 days after administration, compared to control group. The secondary aim was assessment of influence of percentage of fat tissue on serum metabolites of vitamin D and their changes after bolus dose. RESULTS 56.6% study group attained a serum 25(OH)D3 concentration >30 ng/mL. All subjects, except for one patient achieved a serum 25(OH)D3 concentration >20 ng/mL after administration. No one exceed reference value of vitamin D (30-50 ng/mL). Among participants who received vitamin D3 there were significant increase in 25(OH)D3, 3-epi-25(OH)D3, 1,25(OH)2D3, 24,25(OH)2D3 on 3rd day after administration. 24,25(OH)2D3 concentration gradually grew, achieving the highest concentration on 7th day. The percentage increase of 25(OH)D3 was negatively correlated with baseline 25(OH)D3 (r = -0.688, p = 0.001). Positive correlation between percentage increase in 25(OH)D3 and a percentage increase serum concentration of 24,25(OH)2D3 (r = 0.954, p < 0.001), 3-epi-25(OH)D3 (r = 8.03, p < 0.001) and 1,25(OH)2D3 (r = 0.789, p <0.001) were found. None of the study participants developed hypercalcemia. The baseline concentration of analyzed metabolites of vitamin D in serum and their percentage increase were neither dependent on BMI nor percentage of fat tissue. CONCLUSIONS High dose of vitamin D rapidly increases 25(OH)D3 concentration in the elderly patients. The response to the bolus of vitamin D includes activation of 3-epimerase, followed by production of 24,25(OH)2D3, which protects from excessive increase of active form of vitamin D.
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Affiliation(s)
- Dorota Leszczyńska
- Department of Internal Medicine and Endocrinology, Centre of Postgraduate Medical Education, 01-809 Warsaw, Poland
| | - Alicja Szatko
- Department of Internal Medicine and Endocrinology, Centre of Postgraduate Medical Education, 01-809 Warsaw, Poland
| | | | - Dorota Raczkiewicz
- Department of Medical Statistics, School of Public Health, Centre of Postgraduate Medical Education, 01-826 Warsaw, Poland
| | - Magdalena Ostrowska
- Department of Internal Medicine and Endocrinology, Centre of Postgraduate Medical Education, 01-809 Warsaw, Poland
| | - Waldemar Misiorowski
- Department of Internal Medicine and Endocrinology, Centre of Postgraduate Medical Education, 01-809 Warsaw, Poland
| | - Wojciech Zgliczyński
- Department of Internal Medicine and Endocrinology, Centre of Postgraduate Medical Education, 01-809 Warsaw, Poland
| | - Piotr Glinicki
- Department of Internal Medicine and Endocrinology, Centre of Postgraduate Medical Education, 01-809 Warsaw, Poland
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Ostrowska M, Świniarski P, Ostrowski A, Kowalski FR, Adamowicz J, Grzanka D, Drewa TA, Juszczak K. Sarcoidosis of the spermatic cord - case report and literature review. Basic Clin Androl 2022; 32:7. [PMID: 35590251 PMCID: PMC9118738 DOI: 10.1186/s12610-022-00158-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/05/2022] [Indexed: 12/02/2022] Open
Abstract
Background Sarcoidosis is a multi-system disease characterized by the formation of non-caseating granulomas in various organs. The lungs remain the most frequently affected organ, whereas lesions in the genitourinary system affect around 0.2% of patients. The primary site found in the spermatic cord is extremely rare. Case presentation We present a patient’s case where the spermatic cord involvement was the first manifestation of sarcoidosis. For several months, a number of tests had been performed, which showed, among others, non-caseating granulomas in pathomorphological material, bilateral hilar lymphadenopathy, and leukopenia with lymphopenia. Tumor markers were normal. Infection with urogenital pathogens (including Chlamydia Trachomatis, Neisseria gonorrhea, Mycoplasma hominis) was excluded. The patient did not report any general symptoms such as fever, excessive fatigue, weight loss. He denied swelling, shortness of breath. At the same time, a complete differential diagnosis was carried out, and the extent of the disease was assessed. Due to interdisciplinary management, the patient’s quality of life and fertility is preserved. In the discussion, we present the diagnosis, treatment, and prognosis of such patients. Conclusion Sarcoidosis is a multi-system disease, which should not be omitted in the differential diagnosis. Selective excision of the lesion with intraoperative examination plays a significant role while establishing a diagnosis. However, in the primary site in the genitourinary system, the diagnosis is challenging.
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Affiliation(s)
- Magdalena Ostrowska
- Department of Urology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Piotr Świniarski
- Department of Urology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Adam Ostrowski
- Department of Urology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland.
| | - Filip Ryszard Kowalski
- Department of Urology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Jan Adamowicz
- Department of Urology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Dariusz Grzanka
- Department of Clinical Pathomorphology, Faculty of Medicine, Nicolaus Copernicus University in Torun, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Tomasz Adam Drewa
- Department of Urology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Kajetan Juszczak
- Department of Urology, Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
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Glinicki P, Ostrowska M, Papierska L, Zgliczyński W. ProSAAS peptide of the granin protein family in biochemical diagnostics of pheochromocytoma. Endokrynol Pol 2022; 73:330-335. [PMID: 35381093 DOI: 10.5603/ep.a2022.0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Pheochromocytoma is a hormonally active tumour originating from neuroendocrine cells of the adrenal medulla. Chromogranin A (CgA) and peptide proSAAS belong to the family of granins and are present in neuroendocrine cells of adrenal medulla, from where they are released to circulation, along with catecholamines. The aim of this study was to assess the usability of proSAAS peptide assay in patients with adrenal pheochromocytoma. MATERIAL AND METHODS 23 patients (13 females and 10 males) with adrenal pheochromocytoma (benign in 18 patients and malignant in 5) confirmed by histopathology examination, and 35 blood donors as a control group. Plasma free metanephrines, CgA, and proSAAS peptide levels were measured in all participants. RESULTS CgA and proSAAS levels in the group of pheochromocytoma patients vs. the control were: 209 ng/mL and 0.8 ng/mL vs. 59 ng/mL and 0.3 ng/mL (p < 0.001), respectively. The following sensitivity and specificity indexes were obtained from ROC curves for CgA: 83% and 92%, respectively, and for the proSAAS peptide: 39% and 88%, respectively. The combination of 2 parameters: normetanephrine and proSAAS (96% and 100%) had a high diagnostic value, and the value of all determined parameters together (metanephrine, normetanephrine, CgA, and proSAAS) was 100%. CONCLUSION A single determination of the proSAAS peptide level is associated with a rather low diagnostic value. But collective determination of CgA and proSAAS may be an additional, valuable tool in biochemical diagnostics of pheochromocytoma.
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Affiliation(s)
- Piotr Glinicki
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland.
| | - Magdalena Ostrowska
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Lucyna Papierska
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Wojciech Zgliczyński
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland
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11
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Grześk M, Rogowicz D, Ostrowska M, Skwara D, Denisiuk P, Kaczyński S. Subacute thyroiditis after SARS-CoV2 vaccines- a systematic review. Farm Pol 2022. [DOI: 10.32383/farmpol/146836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Zgliczynska M, Ostrowska M, Szymusik I, Ciebiera M, Kosinska-Kaczynska K. Maternal thyroid function in multiple pregnancies - a systematic review. Front Endocrinol (Lausanne) 2022; 13:1044655. [PMID: 36733802 PMCID: PMC9887021 DOI: 10.3389/fendo.2022.1044655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The function of the thyroid gland during pregnancy undergoes physiological changes to ensure the proper amount of thyroid hormones for both the pregnant woman and the fetus. Multiple pregnancies (MP) are characterized by specific differences compared to single pregnancies, e.g., higher concentrations of human chorionic gonadotropin, which also affect thyroid function. The aim was to collect available knowledge on maternal thyroid function in MP. METHODS We have systematically searched three databases: the PubMed/MEDLINE, Scopus and the Cochrane Library. The last search was run on the 4th of August 2022. We included full-text original observational and experimental studies written in English. Case reports, editorials, letters, conference abstracts, reviews and meta-analyses were excluded. No time criterion was established. Studies were considered eligible if at least one maternal thyroid function test was performed and reported. Studies on MP with a co-existing mole were excluded. The risk of bias was assessed with the use of the AXIS tool. The qualitative synthesis of evidence was applied. RESULTS The search strategy resulted in the identification of 821 manuscripts. After removing duplicates, we screened the titles and abstracts of 552 articles, out of which 57 were selected for full-text analysis. Finally, 12 articles were included in the review. They were conducted in 6 different countries and published between the years 1997 and 2022. The number of examined women with MP ranged from 9 to 1 626. DISCUSSION AND CONCLUSIONS Thyroid function differs between women with MP and SP. Scarce data are available on the topic, but MPs are most likely characterized by higher HCG levels, which influences thyroid-stimulating hormone and free thyroid hormone levels. These differences are mainly expressed in the 1st trimester of pregnancy. Separate population-based reference ranges are needed to correctly diagnose thyroid diseases in MP and to avoid unnecessary treatment. Further research is needed to fill the knowledge gaps.
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Affiliation(s)
- Magdalena Zgliczynska
- Department of Obstetrics, Perinatology and Neonatology, Centre of Postgraduate Medical Education, Warsaw, Poland
- *Correspondence: Magdalena Zgliczynska,
| | - Magdalena Ostrowska
- Department of Endocrinology, Centre of Postgraduate Medical Education, Warsaw, Warsaw, Poland
| | - Iwona Szymusik
- Department of Obstetrics, Perinatology and Neonatology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Michal Ciebiera
- Second Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Katarzyna Kosinska-Kaczynska
- Department of Obstetrics, Perinatology and Neonatology, Centre of Postgraduate Medical Education, Warsaw, Poland
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Ostrowski A, Skrudlik P, Kowalski F, Lipowski P, Ostrowska M, Adamczyk P, Adamowicz J, Drewa T, Juszczak K. Current thromboprophylaxis in urological cancer patients during COVID pandemic. Cent European J Urol 2022; 75:128-134. [PMID: 35937655 PMCID: PMC9326695 DOI: 10.5173/ceju.2022.0047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 11/22/2022] Open
Abstract
Introduction Venous thrombosis is a well-known complication of cancer disease, especially in Urology. However, even though proper antithrombotic prophylaxis is crucial in most urological procedures, we have insufficient high-quality studies on this topic. The European Association of Urology (EAU) Guidelines are outdated and lack data on COVID-19 increased risk of thrombosis. This review aimed to summarize data on thromboprophylaxis after radical prostatectomy, cystectomy, and nephrectomy during COVID-19 pandemic. Material and methods A thorough analysis of the EAU Guidelines of Thromboprophylaxis was performed and compared to PubMed search, considering updated literature on thromboprophylaxis of radical prostatectomy, cystectomy, nephrectomy, as well as COVID-19 influence on venous thrombosis and urological practice. Results Each patient should be evaluated individually to balance bleeding and venous thromboembolism (VTE) risk. There is still much uncertainty in low and medium-risk patients and all endoscopic procedures, where thromboprophylaxis could be omitted. Patients with COVID infection bear a significantly higher risk of VTE. All patients should be tested for COVID infection prior to a planned surgery during bursts of infections, undependably of vaccination status. Efforts to maintain early cancer diagnosis and treatment during the pandemic should be maintained. Conclusions The quality of evidence is inadequate, and when deciding on thromboprophylaxis, we need to base it on individual risk, cancer advancement, procedure type, and our own experience.
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Affiliation(s)
- Adam Ostrowski
- Department of Urology and Andrology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
| | | | - Filip Kowalski
- Department of Urology and Andrology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
| | - Paweł Lipowski
- Department of Urology and Andrology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
| | - Magdalena Ostrowska
- Department of Urology and Andrology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
| | - Przemysław Adamczyk
- Department of Urology, Department of General and Oncologic Urology, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Jan Adamowicz
- Department of Urology and Andrology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
| | - Tomasz Drewa
- Department of Urology and Andrology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
| | - Kajetan Juszczak
- Department of Urology and Andrology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
- Department of Urology, Ludwik Rydygier Hospital, Cracow, Poland
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Ostrowska M, Bartoszewicz Z, Bednarczuk T, Walczak K, Zgliczyński W, Glinicki P. The effect of biotin interference on the results of blood hormone assays. Endokrynol Pol 2019; 70:102-121. [PMID: 30855699 DOI: 10.5603/ep.a2018.0084] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 10/16/2018] [Indexed: 11/25/2022]
Abstract
Approximately 70% of medical decisions are made based on results of laboratory investigations. Immunochemical methods are used most commonly in routine laboratory diagnostics of endocrine disorders. Those methods are limited by susceptibility of the immunochemical reaction to various interferences. Interference may be caused by the presence of autologous antibodies, heterophilic antibodies, or paraproteins in the blood serum, by cross-reactions with similar reagents, haemolysis, significant lipidaemia, or hyperbilirubinaemia. Some recent reports have indicated a significant effect of biotin on the reliability of laboratory investigations. Biotin is a water-soluble vitamin belonging to the B group. It is present in popular dietary supplements - alone or as a component of multi-vitamin formulas - and it is advertised as a remedy to falling out and fragility of hair and nails. Due to its low molecular weight and a strong affinity to streptavidin, biotin is used in many immunochemical tests. Due to a strong and stable bond of streptavidin and biotin, analytical methods using the streptavidin (avidin)-biotin system are characterised by superior sensitivity, and they allow determination of very low levels of the tested substance in biological material. The presence of exogenous biotin in a sample may cause interference when using tests that utilise the streptavidin (avidin)-biotin system. Interference of biotin with immunochemical tests depends on several factors: the construction of the immunochemical test, the dose used by the patient, the biotin concentration in the sample, and most of all - the time from the last dose to the collection of biological material for laboratory testing. In this paper we present some practical recommendations and a procedure to be followed in the case of suspected interference of biotin in immunochemical assays, for clinicians and laboratory diagnosticians.
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Affiliation(s)
- Magdalena Ostrowska
- Department of Endocrinology, Centre of Postgraduate Medical Education Bielański Hospital, Warsaw, Poland
| | - Zbigniew Bartoszewicz
- Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Tomasz Bednarczuk
- Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Klaudia Walczak
- Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Wojciech Zgliczyński
- Department of Endocrinology, Centre of Postgraduate Medical Education Bielański Hospital, Warsaw, Poland
| | - Piotr Glinicki
- Department of Endocrinology, Centre of Postgraduate Medical Education Bielański Hospital, Warsaw, Poland.
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Kułaga A, Ostrowska M, Szczudlik A. O40: Inter- and intrahemispheric inhibition and their role in mirror movements pathophysiology. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50145-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Adamski P, Koziński M, Ostrowska M, Fabiszak T, Navarese EP, Paciorek P, Grześk G, Kubica J. Overview of pleiotropic effects of platelet P2Y12 receptor inhibitors. Thromb Haemost 2014; 112:224-42. [PMID: 24763899 DOI: 10.1160/th13-11-0915] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 02/21/2014] [Indexed: 12/20/2022]
Abstract
Dual antiplatelet therapy consisting of one of the P2Y12 receptor inhibitors in conjunction with aspirin is the mainstay of treatment for patients with acute coronary syndromes (ACS) and those undergoing percutaneous coronary interventions (PCI). In recent years, multiple extra-platelet features of P2Y12 receptor antagonists have been reported in numerous clinical trials. The aim of this review is to summarise reported pleiotropic effects of clopidogrel, prasugrel, ticagrelor and other P2Y12 receptor blockers. We included observations made both in human and in animal models, together with proposed mechanisms of action for described features. If confirmed in randomised studies and properly applied to everyday practice, the observed extra-platelet actions could enable us to improve efficacy of ACS and post-PCI treatment, as well as to confine mortality and occurrence rate of cardiovascular events.
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Affiliation(s)
- P Adamski
- Piotr Adamski, MD, Department of Principles of Clinical Medicine, Collegium Medicum, Nicolaus Copernicus University, 9 Sklodowskiej-Curie Street, 85-094 Bydgoszcz, Poland, Tel.: +48 52 5854023, Fax: +48 52 5854024, E-mail:
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Ostrowska M, Żelazowska B, Słoniewski K, Kowalski Z, Zwierzchowski L. Technical note: Selecting the best references in gene expression experiments in liver of cows receiving glucogenic supplements during the transition period. J Dairy Sci 2014; 97:911-6. [DOI: 10.3168/jds.2013-7220] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 10/16/2013] [Indexed: 11/19/2022]
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Jablonska O, Piasecka J, Ostrowska M, Sobocinska N, Wasowska B, Wasowka B, Ciereszko RE. The expression of the aryl hydrocarbon receptor in reproductive and neuroendocrine tissues during the estrous cycle in the pig. Anim Reprod Sci 2011; 126:221-8. [PMID: 21715111 DOI: 10.1016/j.anireprosci.2011.05.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Revised: 04/30/2011] [Accepted: 05/19/2011] [Indexed: 10/18/2022]
Abstract
The aryl hydrocarbon receptor (AhR) has been recognized as a mediator of xenobiotic-induced toxicity. In addition, it was demonstrated that the AhR is able to influence the regulation of reproductive processes in females. The aim of this study was to examine AhR mRNA (real-time PCR) and protein (Western-blot) expression in ovarian follicles and stroma, corpora lutea (CL), oviducts, endometrium, myometrium as well as in medial basal hypothalami (MBH), and anterior (AP) and posterior (PP) pituitaries harvested during the follicular (days 17-19) and luteal (days 8-10) phase of the porcine estrous cycle. The AhR transcript and protein were found in all structures collected during both phases. AhR mRNA expression tended (p=0.06) to be higher in the CL than in follicles. The AhR protein expression in ovarian stroma was higher (p≤0.01) during the follicular than in the luteal phase. Endometrial expression of AhR mRNA was higher (p≤0.01), while AhR protein was lower (p≤0.01) during the follicular phase in comparison to the luteal phase. Within neuroendocrine tissues, AhR mRNA and protein content in hypothalamus were relatively low and did not differ (p>0.05) between phases. In contrast, higher AhR mRNA expression in AP (p≤0.001) and protein expression in PP (p≤0.01) were found during the luteal phase compared to the follicular phase. Differences in AhR expression observed in reproductive and neuroendocrine tissues during the follicular and luteal phase of the estrous cycle indicate the involvement of AhR in the regulation of reproductive function in pigs.
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Affiliation(s)
- Olga Jablonska
- Department of Animal Physiology, University of Warmia and Mazury in Olsztyn, Oczapowski 1A, Olsztyn, Poland
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Górecki T, Kaszuba B, Ostrowska M, Mazurczyk K, Spliter L. Giant Spermatocytic Seminoma with Massive Hemorrhage into Accompanying Hydrocele: Case Report. Int Urol Nephrol 2005; 37:529-31. [PMID: 16307336 DOI: 10.1007/s11255-005-2085-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A 59-year-old man was admitted with giant tumor of testis and massive hemorrhage into accompanying hydrocele. His clinical status had become worse quickly. The emergency resection of tumor with hematocele was performed. The diagnosis was made upon histological examination of the postoperative tissue and was confirmed by immunohistochemistry. Spermatocytic seminoma was recognized. The surgical specimen comprised a tumor (26 cm x 28 cm x 17 cm) in size, weighed 2150 g. Tumor with hematocele achieved about 40 cm in diameter.
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Affiliation(s)
- Tomasz Górecki
- Department of Pathomorphology, District Hospital, Konin, Poland.
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Górecki T, Ostrowska M, Kaszuba B, Nowicki P, Dudzik T, Wojnowski S. Malignant peripheral nerve sheath tumor originating in neurofibroma of the mesentery. Case report. POL J PATHOL 2005; 56:145-7. [PMID: 16334983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
An 83-year-old woman was admitted to our hospital because of colicky pain under the right costal arch suggesting cholecystitis. Physical examination confirmed by ultrasound scan indicated a palpable tumor in that location. Laparotomy was performed and the tumor was removed. Histopathological examination revealed malignant peripheral nerve sheath tumor (MPNST) originating in neurofibroma of the mesentery. Macroscopic, histological and cytological features were typical for MPNST. High nuclear pleomorphism, hyperchromasia were observed but on average only two mitotic figures per high power field were seen. The growth fraction determined by Ki-67 immunoreactivity was about 30%. Immunohistochemical stains revealed positivity of individual cells for NK-1(CD57), S-100 protein and NSE. It was lack of positivity for cytokeratin, EMA, vimentin, desmin, SMA, CD34. We report a well documented case of MPNST originating in preexisting neurofibroma of the mesentery. To our knowledge, is the first case in the Polish literature.
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Szwed G, Lopatniuk M, Zukowska I, Ostrowska M, Zarzeczna T. [CRT test used for the evaluation of enamel solubility in permanent teeth caries]. Czas Stomatol 1989; 42:317-21. [PMID: 2487855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The aim of the study was determination of the microsolubility of permanent teeth enamel by the CRT test depending on the degree of caries intensity. Indirectly, it was tried to obtain an answer to the question whether the test could be used for the assessment of caries susceptibility. Forty-six patients of either sex aged 18 to 30 years were studied. The state of caries was determined by the CDF index. Enamel solubility was determined by the CRT test on the surface of permanent teeth--incisors, canine teeth, second premolars and first molars. In all, 460 surface were examined. After the test 75% fluoride paste was rubbed into the surface. The obtained results of the CRT test were collected in two groups depending on the increasing value of the CDF index. The statistical analysis was done using the correlation coefficient and Student's t test. No statistically significant correlation was found between enamel microsolubility expressed by the CRT test and the degree of caries intensity determined by the CDF index. The results obtained by this method could not confirm the view that the CRT test is useful for determination of enamel susceptibility to caries development.
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Piskorska D, Jerzykowski T, Ostrowska M. Synthesis of S-lactoyl-glutathione using glyoxalase I bound to sepharose 4B. Experientia 1976; 32:1382-3. [PMID: 991975 DOI: 10.1007/bf01937387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Glyoxalase I bound to Sepharose 4B was used for synthesis of S-lactoyl-glutathione. The bound enzyme does not lose its activity during several months storing and can be used many times for synthesis of S-lactoyl-glutathione. This reaction product can be used as a substrate for glyoxalase II without any further purification.
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Ostrowska M, Poniatowska E, Zimnoch L. [A rare case of developmental anomalies of the teeth]. Czas Stomatol 1970; 23:803-8. [PMID: 5272420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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