INTRODUCTION: The use of signal dogs for cancer detection is not yet routinely performed,but dogs and their powerful olfactory system have proven to be a unique and valuable tool for many lineages and are beginning to be incorporated into medical practice. This method has great advantages; the dog can detect a tumour in the human body already in preclinical stages, when the patient has no symptoms yet. The identification of cancer biomarkers to enable early diagnosis is a need for many types of cancer, whose prognosis is strongly dependent on the stage of the disease. However, this method also has its various pitfalls that must be taken into account. AIM: The aim of the study was to identify and highlight the factors that affect the level of detection accuracy, but also the conditions associated with olfactometric diagnosis. METHODS: The study included 48 dogs and 48 handlers, that were part of the training between 2016 and 2023.All those who started olfactometry training and remained in training for at least one year were included in the study. The dogs ranged in age from 8 months to 12 years and were of different races and sexes. After long-term observation, a qualitative analysis was performed and factors that may play a role in the early detection of the disease were listed. RESULTS: The results of the search for the different factors have been compiled into two groups, focussing on the actual handling of the patient biological sample from collection, processing, storage until transport, preparation of the sample,and detection. Focus on the actual work and behaviour of the dog and handler. CONCLUSION: There are many factors; however, it is worth addressing them because the canine sense of smell is one of the possible uses as a diagnostic method.

• Publikační typ
• časopisecké články MeSH

Due to methodological reasons, the X-chromosome has not been featured in the major genome-wide association studies on Alzheimer's Disease (AD). To address this and better characterize the genetic landscape of AD, we performed an in-depth X-Chromosome-Wide Association Study (XWAS) in 115,841 AD cases or AD proxy cases, including 52,214 clinically-diagnosed AD cases, and 613,671 controls. We considered three approaches to account for the different X-chromosome inactivation (XCI) states in females, i.e. random XCI, skewed XCI, and escape XCI. We did not detect any genome-wide significant signals (P ≤ 5 × 10-8) but identified seven X-chromosome-wide significant loci (P ≤ 1.6 × 10-6). The index variants were common for the Xp22.32, FRMPD4, DMD and Xq25 loci, and rare for the WNK3, PJA1, and DACH2 loci. Overall, this well-powered XWAS found no genetic risk factors for AD on the non-pseudoautosomal region of the X-chromosome, but it identified suggestive signals warranting further investigations.

• MeSH
• Alzheimerova nemoc * genetika   MeSH
• celogenomová asociační studie metody   MeSH
• genetická predispozice k nemoci genetika   MeSH
• inaktivace chromozomu X genetika   MeSH
• jednonukleotidový polymorfismus genetika   MeSH
• lidé MeSH
• lidské chromozomy X * genetika   MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• studie případů a kontrol MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

PURPOSE: High-dose intravenous glucocorticoids are the standard first-line treatment in active, moderate to severe and severe thyroid eye disease (TED). We evaluate the usefulness of clinical activity score (CAS) and thyroid-stimulating immunoglobulin (TSI) as predictors and/or post-treatment markers of corticoresistance in patients with TED and the effect of rituximab in second-line treatment. METHODS: We enrolled 236 patients with an active TED into this retrospective single-tertiary-center cohort study. All patients were initially treated with high-dose systemic glucocorticoids. Rituximab was later administered to 29 of 42 corticoresistant patients. RESULTS: The CAS of the corticoresistant patients was significantly higher both before (p = 0.0001) and after (p = <0.0001) first-line treatment compared to the corticosensitive group. ROC analysis established the cut-point value as CAS ≥ 2.5 with a sensitivity of 96.3%, specificity of 57.5% and area under the curve of 82.8%. In 22 patients treated with rituximab, CAS gradually decreased to zero values without reactivation during extended follow-up. There was no difference in the TSI of corticosensitive and corticoresistant patients before or after first-line therapy. CONCLUSION: CAS ≥ 2, after first-line treatment, could be used as a corticoresistance marker. Corticoresistant patients should be subject to long-term follow-up for early detection of reactivation to reduce the delay to second-line treatment. Rituximab is a well-tolerated choice of second-line treatment and has a long-lasting effect on disease activity. Although TSI is a valuable biomarker of Graves' disease and TED activity, according to our results, TSI cannot be used as a marker of corticoresistance.

• MeSH
• dospělí MeSH
• glukokortikoidy terapeutické užití   MeSH
• Gravesova oftalmopatie * farmakoterapie   krev   MeSH
• imunoglobuliny stimulující tyreoideu krev   MeSH
• imunologické faktory terapeutické užití   MeSH
• léková rezistence * MeSH
• lidé středního věku MeSH
• lidé MeSH
• retrospektivní studie MeSH
• rituximab * terapeutické užití   MeSH
• senioři MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

Poly(ɛ-caprolactone) (PCL) is a biocompatible, biodegradable, and highly mechanically resilient FDA-approved material (for specific biomedical applications, e.g. as drug delivery devices, in sutures, or as an adhesion barrier), rendering it a promising candidate to serve bone tissue engineering. However, in vivo monitoring of PCL-based implants, as well as biodegradable implants in general, and their degradation profiles pose a significant challenge, hindering further development in the tissue engineering field and subsequent clinical adoption. To address this, photo-cross-linkable mechanically resilient PCL networks are developed and functionalized with a radiopaque monomer, 5-acrylamido-2,4,6-triiodoisophthalic acid (AATIPA), to enable non-destructive in vivo monitoring of PCL-based implants. The covalent incorporation of AATIPA into the crosslinked PCL networks does not significantly affect their crosslinking kinetics, mechanical properties, or thermal properties, but it increases their hydrolysis rate and radiopacity. Complex and porous 3D designs of radiopaque PCL networks can be effectively monitored in vivo. This work paves the way toward non-invasive monitoring of in vivo degradation profiles and early detection of potential implant malfunctions.

• MeSH
• biokompatibilní materiály chemie   MeSH
• myši MeSH
• polyestery * chemie   MeSH
• poréznost MeSH
• testování materiálů MeSH
• tkáňové inženýrství metody   MeSH
• tkáňové podpůrné struktury * chemie   MeSH
• vstřebatelné implantáty MeSH
• zvířata MeSH
• Check Tag
• myši MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

Minimal residual disease (MRD) is one of the most important prognostic factors in multiple myeloma (MM) and a valid surrogate for progression-free survival (PFS) and overall survival (OS). Recently, MRD negativity was approved as an early clinical endpoint for accelerated drug approval in MM. Nevertheless, there is limited evidence of MRD utility in real-world setting. In this retrospective multicenter study, we report outcomes of 331 newly diagnosed MM patients with MRD evaluation at Day+100 after autologous stem cell transplantation using flow cytometry with a median limit of detection of 0.001%. MRD negativity was reached in 47% of patients and was associated with significantly prolonged median PFS (49.2 months vs. 18.4 months; hazard ratios (HR) = 0.37; p < 0.001) and OS (not reached vs. 74.9 months; HR = 0.50; p = 0.007). Achieving MRD negativity was associated with PFS improvements regardless of age, International Staging System (ISS) stage, lactate dedydrogenase (LDH) level, or cytogenetic risk. Importantly, MRD positive patients benefited from lenalidomide maintenance versus no maintenance (18-months PFS: 81% vs. 46%; HR = 0.24; p = 0.002) while in MRD negative patients such benefit was not observed (p = 0.747). The outcomes of our real-world study recapitulate results from clinical trials including meta-analyses and support the idea that MRD positive patients profit more from lenalidomide maintenance than MRD negative ones.

• MeSH
• autologní transplantace MeSH
• dospělí MeSH
• lenalidomid aplikace a dávkování   terapeutické užití   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mnohočetný myelom * diagnóza   mortalita   terapie   patologie   MeSH
• prognóza MeSH
• průtoková cytometrie * metody   MeSH
• retrospektivní studie MeSH
• reziduální nádor * diagnóza   MeSH
• senioři MeSH
• staging nádorů MeSH
• transplantace hematopoetických kmenových buněk metody   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• multicentrická studie MeSH

Acute kidney injury (AKI) due to gentamicin nephrotoxicity is a significant concern in clinical medicine, particularly in patients receiving prolonged or high-dose gentamicin therapy. Gentamicin is an aminoglycoside antibiotic frequently used in the treatment of a range of bacterial infections. However, its use is associated with nephrotoxicity which can manifest as AKI. Due to this, it is crucial to diagnose promptly and manage treatment effectively. Ongoing studies are therefore focusing on non-protein-coding RNAs as potential biomarkers for AKI. Numerous microRNAs (miRNAs) have been implicated in gentamicin-induced nephrotoxicity and AKI. They participate in pathways associated with inflammation, cell death, and oxidative stress and each of these factors play critical roles in the development of gentamicin-induced kidney injury. Research studies have demonstrated changes in the expression levels of these miRNAs in response to gentamicin exposure both in vitro and in in vivo models, as well as in human clinical trials involving patients receiving gentamicin therapy. The dysregulation of these miRNAs correlates with the severity of kidney injury and may serve as sensitive biomarkers for early detection and monitoring of AKI induced by gentamicin.

• MeSH
• akutní poškození ledvin * chemicky indukované   diagnóza   MeSH
• antibakteriální látky * škodlivé účinky   MeSH
• biologické markery * MeSH
• gentamiciny * škodlivé účinky   MeSH
• lidé MeSH
• mikro RNA * MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH

Srdeční selhání patří mezi nejzávažnější zdravotní problémy současnosti. I přesto, že celoživotní riziko srdečního selhání je u mužů a žen podobné, existují výrazné rozdíly mezi oběma pohlavími. Muži jsou predisponováni k srdečnímu selhání se sníženou ejekční frakcí, zatímco u žen převažuje srdeční selhání se zachovanou ejekční frakcí (HFpEF). HFpEF je velmi heterogenní skupinou poruch a pochopení rozdílů mezi muži a ženy může přinést užitečné informace o možnostech prevence a léčby tohoto onemocnění. Například v etiologii a progresi HFpEF mohou hrát výraznou úlohu ženské pohlavní hormony, jmenovitě estradiol. Dalším faktorem může být fakt, že u žen může být cévní systém, a to především poruchy mikrocirkulace, predisponujícím faktorem k HFpEF. Proto včasný záchyt a léčba poruch periferní cirkulace může výrazně přispět i k prevenci HFpEF, především u žen.

Heart failure is one of the most serious problems of recent medicine. Despite the lifetime risk of heart failure is similar in men and women, significant sex differences were described. Men are more predisposed to heart failure with reduced ejection fraction, while women are predisposed to heart failure with preserved ejection fraction (HFpEF). HFpEF is a very heterogeneous group of disorders, and the research of sex differences might substantially improve preventive and treatment approaches. For example, female sex hormones, namely estradiol, might play prominent role in development and progression of HFpEF. Very common factor associated with HFpEF is vascular and microvascular system, which is more pronounced in women and might be cause and accelerating factor for HFpEF. Therefore, also early detection and manage- ment of disorders of vascular system might substantially add to prevention of HFpEF, especially in women.

Psoriatická artritida (PsA) je zánětlivá séronegativní artritida silně asociovaná s psoriázou. Rozpoznání klinických příznaků PsA je stěžejní, neboť neléčené onemocnění může vést k destruktivním a nevratným změnám kloubů, zhoršení fyzických funkcí a výraznému snížení kvality života. Dermatologové by měli být připraveni na včasné odhalení PsA, protože kožní projevy obvykle (až u 80 % pacientů) předcházejí rozvoji kloubního postižení. Rozpoznání PsA u pacientů s psoriázou zůstává pro dermatology výzvou. Diagnostické zpoždění ≥ 6 měsíců od nástupu symptomů může mít za následek poškození kloubu a pokles funkčních schopností. Guselkumab je indikován nejen k léčbě psoriázy, ale také k léčbě psoriatické artritidy. Ve studiích prokázal přijatelný dlouhodobý bezpečnostní profil a přetrvávající účinnost, což potvrzují i naše zkušenosti prezentované v kazuistice 47leté pacientky s psoriázou a aktivní psoriatickou artritidou úspěšně léčené guselkumabem.

Psoriatic arthritis (PsA) is an inflammatory seronegative arthritis strongly associated with psoriasis. Recognition of the clinical signs of PsA is crucial, as untreated disease can lead to destructive and irreversible joint changes, impaired physical function and a significant reduction in quality of life. Dermatologists should be alert to the early detection of PsA, as skin manifestations usually (up to 80% of patients) precede the development of joint involvement. Recognition of PsA in patients with psoriasis remains a challenge for dermatologists. A diagnostic delay of ≥ 6 months from the onset of symptoms can result in joint damage and functional decline. Guselkumab is indicated not only for the treatment of psoriasis but also for the treatment of psoriatic arthritis. In studies, it has demonstrated an acceptable long-term safety profile and persistent efficacy, which is confirmed by our experience presented in a case report of a 47-year-old patient with psoriasis and active psoriatic arthritis successfully treated with guselkumab.

BACKGROUND AND OBJECTIVE: While prostate cancer (PCa) incidence and mortality rates continue to rise, early detection of PCa remains highly controversial, and the research landscape is rapidly evolving. Existing systematic reviews (SRs) and meta-analyses (MAs) provide valuable insights, but often focus on single aspects of early detection, hindering a comprehensive understanding of the topic. We aim to fill this gap by providing a comprehensive SR of contemporary SRs covering different aspects of early detection of PCa in the European Union (EU) and the UK. METHODS: On June 1, 2023, we searched four databases (Medline ALL via Ovid, Embase, Web of Science, and Cochrane Central Register of Controlled Trials) and Google Scholar. To avoid repetition of previous studies, only SRs (qualitative, quantitative, and/or MAs) were considered eligible. In the data, common themes were identified to present the evidence systematically. KEY FINDINGS AND LIMITATIONS: We identified 1358 citations, resulting in 26 SRs eligible for inclusion. Six themes were identified: (1) invitation: men at general risk should be invited at >50 yr of age, and testing should be discontinued at >70 yr or with <10 yr of life expectancy; (2) decision-making: most health authorities discourage population-based screening and instead recommend a shared decision-making (SDM) approach, but implementation of SDM in clinical practice varies widely; decision aids help men make more informed and value-consistent screening decisions and decrease men's intention to attempt screening, but these do not affect screening uptake; (3) acceptance: facilitators for men considering screening include social prompting by partners and clinician recommendations, while barriers include a lack of knowledge, low-risk perception, and masculinity attributes; (4) screening test and algorithm: prostate-specific antigen-based screening reduces PCa-specific mortality and metastatic disease in men aged 55-69 yr at randomisation if screened at least twice; (5) harms and benefits: these benefits come at the cost of unnecessary biopsies, overdiagnosis, and subsequent overtreatment; and (6) future of screening: risk-adapted screening including (prebiopsy) risk calculators, magnetic resonance imaging, and blood- and urine-based biomarkers could reduce these harms. To enable a comprehensive overview, we focused on SRs. These do not include the most recent prospective studies, which were therefore incorporated in the discussion. CONCLUSIONS AND CLINICAL IMPLICATIONS: By identifying consistent and conflicting evidence, this review highlights the evidence-based foundations that can be built upon, as well as areas requiring further research and improvement to reduce the burden of PCa in the EU and UK. PATIENT SUMMARY: This review of 26 reviews covers various aspects of prostate cancer screening such as invitation, decision-making, screening tests, harms, and benefits. This review provides insights into existing evidence, highlighting the areas of consensus and discrepancies, to guide future research and improve prostate cancer screening strategies in Europe.

• MeSH
• časná detekce nádoru * MeSH
• Evropská unie * MeSH
• lidé MeSH
• nádory prostaty * diagnóza   MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH
• Geografické názvy
• Spojené království MeSH

Mnohočetný myelom je druhým nejčastějším nádorovým onemocněním krve v České republice a jeho incidence stále stoupá. Ze zkušeností z každodenní klinické praxe vyplývá, že až polovina pacientů s mnohočetným myelomem se začíná léčit pozdě v důsledku pozdního stanovení diagnózy. Na zlepšení této skutečnosti byl zaměřen již původní projekt CRAB České myelomové skupiny. Aktuální článek shrnuje výsledky dotazníkové části projektu CRAB II, na kterou by měla navázat rozsáhlá informační kampaň o příznacích nemoci včetně doporučeného vyšetřovacího postupu při podezření na jejich možnou souvislost s tímto závažným onemocněním. Zlepšení diagnostiky mnohočetného myelomu, zejména co se týče časného stanovení diagnózy, a posun moderních léčebných postupů do první léčebné linie by měly do budoucna vést k dalšímu prodloužení a současně zlepšení kvality života nemocných.

Multiple myeloma is the second most common hematologic malignancy in the Czech Republic, and its incidence continues to rise. Clinical experience shows that up to half of patients with multiple myeloma begin treatment late due to delayed diagnosis. The original CRAB project by the Czech Myeloma Group was aimed at addressing this issue. The current article summarizes the results of the questionnaire phase of the CRAB II project, which is intended to be followed by a large-scale information campaign about the symptoms of the disease, including recommended diagnostic procedures when a possible connection to this serious condition is suspected. Improving the diagnosis of multiple myeloma – especially in terms of early detection – and advancing modern treatment approaches to first-line therapy should, in the future, lead to further prolongation and simultaneous improvement of patients’ quality of life.