Jakub Kucharz

Prof. Jakub Kucharz

orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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9 August 2018 in Mediators of Inflammation
Verified
Journal Article
Open access
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AŻAgnieszka Żyłka
Agnieszka Żyłka
Paulina DumnickaPaulina Dumnicka
Paulina Dumnicka
Beata Kuśnierz-CabalaBeata Kuśnierz-Cabala
Beata Kuśnierz-Cabala
AGAgnieszka Gala-Błądzińska
Agnieszka Gala-Błądzińska
Piotr CeranowiczPiotr Ceranowicz
Piotr Ceranowicz
MKMarek Kuźniewski
Marek Kuźniewski
Diabetic kidney disease develops in half of genetically predisposed patients with type 2 diabetes (T2DM). Early diagnosis of kidney damage and nephroprotective treatment are the ways of preventing the disease progression. Our aim was to evaluate selected laboratory markers of glomerular and tubular damage in T2DM patients with early stages of chronic kidney disease (G1/G2, A1/A2) for their associations with A2 albuminuria and early decline in the estimated glomerular filtration rate (eGFR). Among 80 T2DM patients with median eGFR of 92.4 ml/min/1.73 m2and median urinary albumin to creatinine ratio (uACR) of 4.69 mg/g, 19 had uACR > 30 mg/g (A2). Higher serum cystatin C, serum and urine neutrophil gelatinase associated lipocalin (NGAL), urine kidney injury molecule 1 (KIM-1), detectable urine transferrin and IgG, and lower serum uromodulin significantly predicted A2 albuminuria, urine KIM-1/creatinine ratio, and IgG being the best predictors. Albuminuria, urine NGAL/creatinine, and IgG correlated with diabetes duration. Albuminuria, urine NGAL, transferrin, IgG, and uromodulin correlated with diabetes control. In a subgroup of 29 patients, retrospective data were available on changes in eGFR and uACR over one year. Decline in eGFR was observed in 17 patients and increase in uACR in 10 patients. Serum and urine NGAL correlated with eGFR changes. Higher urine NGAL, KIM-1/creatinine ratio, and detectable IgG were significantly associated with the increase in uACR. Widely available markers, serum cystatin C, urine IgG, transferrin, and NGAL, may help in early assessment of kidney disease in T2DM patients; however, large prospective studies are needed to confirm the conclusion.

1 February 2019 in Clinical Breast Cancer
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Journal Article
Closed access
WKWeronika Klon
Weronika Klon
KNKrzysztof Nowosielski
Krzysztof Nowosielski
ICIda Cedrych
Ida Cedrych
Marek KrzystanekMarek Krzystanek
Marek Krzystanek
IGIwona Glogowska
Iwona Glogowska
ZLZbigniew Lew-Starowicz
Zbigniew Lew-Starowicz

27 October 2018 in Medical Oncology
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Journal Article
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PWPawel Wiechno
Pawel Wiechno
JKJakub Kucharz
Jakub Kucharz
MSMalgorzata Sadowska
Malgorzata Sadowska
WMWojciech Michalski
Wojciech Michalski
BSBozena Sikora-Kupis
Bozena Sikora-Kupis
TDTomasz Demkow
Tomasz Demkow

17 August 2017 in Medical Oncology
Verified
Journal Article
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IFIwona Filipczak-Bryniarska
Iwona Filipczak-Bryniarska
RKRoger M. Krzyzewski
Roger M. Krzyzewski
JKJakub Kucharz
Jakub Kucharz
AMAnna Michalowska-Kaczmarczyk
Anna Michalowska-Kaczmarczyk
JKJustyna Kleja
Justyna Kleja
KKKrzysztof Krzemieniecki
Krzysztof Krzemieniecki
High-dose capsaicin patch is effective in treatment of neuropathic pain in HIV-associated neuropathy and diabetic neuropathy. There are no studies assessing effectiveness of high-dose capsaicin patch in treatment of chemotherapy-induced peripheral neuropathy. We sought to determine the effectiveness of treatment of pain associated with chemotherapy-induced peripheral neuropathy with high-dose capsaicin patch. Our study group consisted of 18 patients with clinically confirmed oxaliplatin-induced neuropathy. Baseline characteristic including underling disease, received cumulative dose of neurotoxic agent, neuropathic symptoms, prior treatment and initial pain level were recorded. Pain was evaluated with Numeric Rating Scale prior to treatment with high-dose capsaicin and after 1.8 day and after 8 and 12 weeks after introducing treatment. Patients were divided into two groups accordingly to the amount of neurotoxic agent that caused neuropathy (high sensitivity and low sensitivity group). Most frequent symptoms of chemotherapy-induced neuropathy were: pain (88.89%), paresthesis (100%), sock and gloves sensation (100%) and hypoesthesis (100%). Initial pain level was 7.45 ± 1.14. Mean cumulative dose of oxaliplatin after which patients developed symptoms was 648.07 mg/m2. Mean pain level after 12 weeks of treatment was 0.20 ± 0.41. When examined according to high and low sensitivity to neurotoxic agent patients with low sensitivity had higher pain reduction, especially after 8 days after introducing treatment (69.55 ± 12.09 vs. 49.40 ± 20.34%; p = 0.02) and after 12 weeks (96.96 ± 5.56 vs. 83.93 ± 18.59%; p = 0.04). High-dose capsaicin patch is an effective treatment for pain associated with chemotherapy-induced neuropathy in patients treated with oxaliplatin. Patients with lower sensitivity to neurotoxic agents have better response to treatment and pain reduction.

25 March 2017 in Medical Oncology
Verified
Journal Article
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ABAnna Buda-Nowak
Anna Buda-Nowak
JKJakub Kucharz
Jakub Kucharz
Paulina DumnickaPaulina Dumnicka
Paulina Dumnicka
MKMarek Kuzniewski
Marek Kuzniewski
RHRoman Maria Herman
Roman Maria Herman
BKBeata Kusnierz-Cabala
Beata Kusnierz-Cabala
Sunitinib is a tyrosine kinase inhibitor (TKI) used in treatment of metastatic renal cell carcinoma (mRCC), gastrointestinal stromal tumors and pancreatic neuroendocrine tumors. One of the most common side effects related to sunitinib is hypothyroidism. Recent trials suggest correlation between the incidence of hypothyroidism and treatment outcome in patients treated with TKI. This study evaluates whether development of hypothyroidism is a predictive marker of progression-free survival (PFS) in patients with mRCC treated with sunitinib. Twenty-seven patients diagnosed with clear cell mRCC, after nephrectomy and in ‘good’ or ‘intermediate’ MSKCC risk prognostic group, were included in the study. All patients received sunitinib as a first-line treatment on a standard schedule (initial dose 50 mg/day, 4 weeks on, 2 weeks off). The thyroid-stimulating hormone serum levels were obtained at the baseline and every 12 weeks of treatment. In statistic analyses, we used Kaplan–Meier method for assessment of progression-free survival; for comparison of survival, we used log-rank test. In our study, the incidence of hypothyroidism was 44%. The patients who had developed hypothyroidism had better median PFS to patients with normal thyroid function 28,3 months [95% (CI) 20.4–36.2 months] versus 9.8 months (6.4–13.1 months). In survival analysis, we perceive that thyroid dysfunction is a predictive factor of a progression-free survival (PFS). In the unified group of patients, the development of hypothyroidism during treatment with sunitinib is a positive marker for PFS. During that treatment, thyroid function should be evaluated regularly.

3 July 2020 in Strahlentherapie und Onkologie
Verified
Journal Article
Open access
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ŁKŁukasz Kuncman
Łukasz Kuncman
Konrad StawiskiKonrad Stawiski
Konrad Stawiski
MMMichał Masłowski
Michał Masłowski
JKJakub Kucharz
Jakub Kucharz
JFJacek Fijuth
Jacek Fijuth
Purpose: Magnetic resonance imaging (MRI) is routinely used for locoregional staging of rectal cancer and offers promise for the prediction of hematologic toxicity. The present study compares the clinical utility of MRI-based active bone marrow (BMact) delineation with that of CT-based bone marrow total (BMtot) delineation for predicting hematologic toxicity. Methods: A prospective cohort study was performed. Eligible patients had stage II/III rectal cancer and qualified for preoperative chemoradiotherapy. The BMact areas on T1-weighted MRI were contoured. The impact of the dose–volume parameters of BMact/BMtot and clinical data on hematologic toxicity were assessed. Basic endpoints were the occurrence of grade 3/4 hematologic toxicity and peripheral blood parameters reaching a nadir. Linear regression models were generated for the nadirs and receiver operating characteristic (ROC) curves for the occurrence of grade 3/4 hematologic toxicity. Results: Thirty-five patients were enrolled. Women presented higher dose–volume parameters of BMact, BMtot, and lymphocyte nadir (ALCnadir%) than men. Models for the prediction of ALCnadir% (V5-V20BMtot, V5-V30BMact) and platelet nadir (PLTnadir%; V5-V10BMtot, V5-V20BMact) were statistically significant. In the ROC curves, a baseline lymphocyte level of 1.81 × 103/ml was adopted as the cutoff for predicting grade 3/4 lymphopenia, with specificity of 77.8% and sensitivity of 73.1%. The multivariate linear regression model for ALCnadir% had R2 = 0.53, p = 0.038. In the tenth step of selection, V5BMact (p = 0.002) and gender (p = 0.019) remained. The multivariate linear regression model for PLTnadir% had R2 = 0.20, p = 0.34. In the sixth step of selection, V15BMact remained (p = 0.026). Conclusion: The dose–volume parameters of BMact serve as better predictors of ALCnadir% and PLTnadir% than BMtot.