scholarly journals New trends in diagnostics and therapy of urinary stones - the role of CT examination

2020 ◽  
Vol 21 (2) ◽  
pp. 57-61
Author(s):  
Milan Král ◽  
Filip Čtvrtlík ◽  
Jaromír Ptáček ◽  
František Hruška ◽  
Michaela Motolová
Keyword(s):  
Urinary Stones ◽  
Ct Examination ◽  
Diagnostics And Therapy

Hybrid Imaging in Evaluation of Abdominal Sarcoidosis

2018 ◽  
Vol 15 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Isidora Grozdic Milojevic ◽  
Dragana Sobic-Saranovic ◽  
Nebojsa Petrovic ◽  
Slobodanka Beatovic ◽  
Marijana Tadic ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Therapy Response ◽  
Ct Examination ◽  
Abdominal Disease ◽  
Pet Ct ◽  
Fdg Pet Ct ◽  
Total Remission ◽  
Active Disease

Objective: To determine the prevalence of abdominal involvement, distribution pattern and evaluate role of hybrid molecular imaging in patients with abdominal sarcoidosis. Methods: Between January 2010 and December 2011, 98 patients with chronic sarcoidosis and presence of prolonged symptoms or other findings suggestive of active disease were referred to FDG PET/CT examination. Active disease was found in 82 patients, and they all were screened for the presence of abdominal sarcoidosis on FDG PET/CT. All patients also underwent MDCT and assessment of serum ACE level. Follow up FDG PET/CT examination was done 12.3±5.4 months after the baseline. Results: Abdominal sarcoidosis was present in 31/82 patients with active sarcoidosis. FDG uptake was present in: retroperitoneal lymph nodes (77%), liver (26%), spleen (23%), adrenal gland (3%). Majority of patients had more than two locations of disease. Usually thoracic disease was spread into the extrathoracic localizations, while isolated abdominal sarcoidosis was present in 10% of patients. After first FDG PET/CT examination therapy was changed in all patients. Eleven patients came to the follow up examination where SUVmax significantly decreased in the majority of them. Three patients had total remission, three had absence of abdominal disease but discrete findings in thorax and others had less spread disease. ACE levels did not correlate with SUVmax level. Conclusion: FDG PET/CT can be a useful tool for detection of abdominal sarcoidosis and in the evaluation of therapy response in these patients. Awareness of the presence of intra-abdominal sarcoidosis is important in order to prevent long-standing unrecognized disease.

scholarly journals Erectile dysfunction – overview from a cardiovascular perspective

VASA ◽  
2017 ◽  
Vol 46 (5) ◽  
pp. 347-353 ◽  
Author(s):  
Frederic Baumann ◽  
Deborah Hehli ◽  
Vladimir Makaloski ◽  
Martin Schumacher ◽  
Heinz Schönhofen ◽  
...  
Keyword(s):  
Risk Factors ◽  
Erectile Dysfunction ◽  
Cardiovascular Risk ◽  
Endovascular Therapy ◽  
Minimal Invasive ◽  
Male Population ◽  
Ageing Male ◽  
The Common ◽  
Diagnostics And Therapy

Abstract. Erectile dysfunction (ED) is an evolving health problem with growing incidence in the ageing male population with potentially predictive value for cardiovascular and other chronic diseases. ED shares the common cardiovascular risk factors. The aetiology of ED is numerous including neurogenic, psychogenic, arteriogenic, and venogenic reasons. The origin of arteriogenic ED is frequently atherosclerosis. Patients not adequately responding to conservative measures including oral medication are often referred to further vascular diagnostics and therapy. At present, the refinements in endovascular therapy allow for minimal-invasive revascularization of erection-related arteries. The role of endovascular therapy in the complex framework of the multifactorial causes of ED requires further scientific scrutiny.

Role of miRNAs In Cancer Diagnostics And Therapy: A Recent Update

2021 ◽  
Vol 27 ◽  
Author(s):  
Adil A. Sayyed ◽  
Piyush Gondaliya ◽  
Palak Bhat ◽  
Mukund Mali ◽  
Neha Arya ◽  
...  
Keyword(s):  
Targeted Delivery ◽  
Tumor Invasion ◽  
Cancer Metastasis ◽  
Critical Role ◽  
Delivery Systems ◽  
Cancer Diagnostics ◽  
Disease Monitoring ◽  
The Stability ◽  
Diagnostics And Therapy

: The discovery of miRNAs has been one of the revolutionary developments and has led to the advent of new diagnostic and therapeutic opportunities for the management of cancer. In this regard, miRNA dysregulation has been shown to play a critical role in various stages of tumorigenesis, including tumor invasion, metastasis as well as angiogenesis. Therefore, miRNA profiling can provide accurate fingerprints for the development of diagnostic and therapeutic platforms. This review discusses the recent discoveries of miRNA-based tools for early detection of cancer as well as disease monitoring in cancers that are common, like breast, lung, hepatic, colorectal, oral and brain cancer. Based on the involvement of miRNA in different cancers as oncogenic miRNA or tumor suppressor miRNA, the treatment with miRNA inhibitors or mimics is recommended. However, the stability and targeted delivery of miRNA remain the major limitations of miRNA delivery. In relation to this, several nanoparticle-based delivery systems have been reported which have effectively delivered the miRNA mimics or inhibitors and showed the potential for transforming these advanced delivery systems from bench to bedside in the treatment of cancer metastasis and chemoresistance. Based on this, we attempted to uncover recently reported advanced nanotherapeutic approaches to deliver the miRNAs in the management of different cancers.

Role of extracellular vesicles in nephrology. Prospective use in therapy of kidneys and urinary tract diseases

2020 ◽  
Vol 18 (2) ◽  
pp. 91-114
Author(s):  
Vladimir I. Vashchenko ◽  
Petr D. Shabanov
Keyword(s):  
Urinary Tract ◽  
Extracellular Vesicles ◽  
Coagulation Factors ◽  
Heterogeneous Population ◽  
Cellular Communications ◽  
Alarm System ◽  
Biological Processes ◽  
Almost All ◽  
Diagnostics And Therapy

Extracellular vesicles (EVs) represent heterogeneous population of the microparticles liberated by almost all live cages which are widely investigated recently in various biological and medical areas. They usually consist of two basic types (exosomes and microvesicles) and recently draw the increasing attention in quality mesenges of the cellular alarm system. Really, these vesicles can influence on cages-recipients, transferring and delivering difficult complexes of biomolecules (the lipids, proteins, coagulation factors, antigene, nucleinic acids), protected from enzymatic to degradation in environment. Importance EVs has been shown in pathophysiology several bodies, in particular, in kidneys where various types of cages нефрона allocate EVs which mediate their communication with underlaying cages urinogenous ways. By numerous researches it is established that EVs are involved in cellular communications during the regenerative and pathological processes occurring in a kidney. During the last years also it has been proved that vesicles play an important role in normal physiology of kidneys. Though many mechanisms EVs at illnesses are still studied insufficiently, in particular, in kidneys, opening of a role of additional mechanisms can help to throw light on the biological processes proceeding in kidneys. Eventually, extracellular vesicles, allocated with nephritic cages, collect in urine, becoming, thus, the big resource as markers of illnesses urinogenous a path and the perspective noninvasive diagnostic tool at nephritic illnesses. In the present review we discuss the latest data about a role EVs in pathophysiology of kidneys and their potential prospects in diagnostics and therapy of nephritic illness.

scholarly journals Proteus sp. – an opportunistic bacterial pathogen – classification, swarming growth, clinical significance and virulence factors

2012 ◽  
Vol 8 ◽  
pp. 1-17 ◽  
Author(s):  
Antoni Różalski ◽  
Agnieszka Torzewska ◽  
Magdalena Moryl ◽  
Iwona Kwil ◽  
Agnieszka Maszewska ◽  
...  
Keyword(s):  
Bacterial Pathogen ◽  
Opportunistic Pathogen ◽  
Matrix Proteins ◽  
Urinary Stones ◽  
Carbonate Apatite ◽  
Tract Infections ◽  
Favorable Conditions ◽  
Tissue Matrix ◽  
The Complement System

The genus Proteus belongs to the Enterobacteriaceae family, where it is placed in the tribe Proteeae, together with the genera Morganella and Providencia. Currently, the genus Proteus consists of five species: P. mirabilis, P. vulgaris, P. penneri, P. hauseri and P. myxofaciens, as well as three unnamed Proteus genomospecies. The most defining characteristic of Proteus bacteria is a swarming phenomenon, a multicellular differentiation process of short rods to elongated swarmer cells. It allows population of bacteria to migrate on solid surface. Proteus bacteria inhabit the environment and are also present in the intestines of humans and animals. These microorganisms under favorable conditions cause a number of infections including urinary tract infections (UTIs), wound infections, meningitis in neonates or infants and rheumatoid arthritis. Therefore, Proteus is known as a bacterial opportunistic pathogen. It causes complicated UTIs with a higher frequency, compared to other uropathogens. Proteus infections are accompanied by a formation of urinary stones, containing struvite and carbonate apatite. The virulence of Proteus rods has been related to several factors including fimbriae, flagella, enzymes (urease - hydrolyzing urea to CO2 and NH3, proteases degrading antibodies, tissue matrix proteins and proteins of the complement system), iron acqusition systems and toxins: hemolysins, Proteus toxin agglutinin (Pta), as well as an endotoxin - lipopolysaccharide (LPS). Proteus rods form biofilm, particularly on the surface of urinary catheters, which can lead to serious consequences for patients. In this review we present factors involved in the regulation of swarming phenomenon, discuss the role of particular pathogenic features of Proteus spp., and characterize biofilm formation by these bacteria.

scholarly journals The Role of Indoleamine-2,3-Dioxygenase in Cancer Development, Diagnostics, and Therapy

2018 ◽  
Vol 9 ◽  
Author(s):  
Lilla Hornyák ◽  
Nikoletta Dobos ◽  
Gábor Koncz ◽  
Zsolt Karányi ◽  
Dénes Páll ◽  
...  
Keyword(s):  
Cancer Development ◽  
Indoleamine 2,3 Dioxygenase ◽  
Diagnostics And Therapy

scholarly journals Pathological processes and therapeutic advances in radioiodide refractory thyroid cancer

2017 ◽  
Vol 59 (4) ◽  
pp. R141-R154 ◽  
Author(s):  
Marika H Tesselaar ◽  
Johannes W Smit ◽  
James Nagarajah ◽  
Romana T Netea-Maier ◽  
Theo S Plantinga
Keyword(s):  
Thyroid Cancer ◽  
Signaling Pathways ◽  
Intracellular Signaling ◽  
Medullary Thyroid Cancer ◽  
Disease Remission ◽  
Intracellular Signaling Pathways ◽  
Oncogenic Mutations ◽  
Diagnostics And Therapy ◽  
Disease Present

While in most patients with non-medullary thyroid cancer (TC), disease remission is achieved by thyroidectomy and ablation of tumor remnants by radioactive iodide (RAI), a substantial subgroup of patients with metastatic disease present tumor lesions that have acquired RAI resistance as a result of dedifferentiation. Although oncogenic mutations inBRAF,TERTpromoter andTP53are associated with an increased propensity for induction of dedifferentiation, the role of genetic and epigenetic aberrations and their effects on important intracellular signaling pathways is not yet fully elucidated. Also immune, metabolic, stemness and microRNA pathways have emerged as important determinants of TC dedifferentiation and RAI resistance. These signaling pathways have major clinical implications since their targeting could inhibit TC progression and could enable redifferentiation to restore RAI sensitivity. In this review, we discuss the current insights into the pathological processes conferring dedifferentiation and RAI resistance in TC and elaborate on novel advances in diagnostics and therapy to improve the clinical outcome of RAI-refractory TC patients.

scholarly journals Role of angiostatins in diabetic complications

2015 ◽  
Vol 61 (1) ◽  
pp. 41-56 ◽  
Author(s):  
A.A. Tykhomyrov ◽  
S.I. Shram ◽  
T.V. Grinenko
Keyword(s):  
Diabetes Mellitus ◽  
Cardiovascular Diseases ◽  
Diabetic Complications ◽  
Causative Factor ◽  
Vascular Abnormalities ◽  
Number Of Factors ◽  
First Time ◽  
Review Current ◽  
Diagnostics And Therapy

Angiogenesis is a process through which new blood vessels form from pre-existing vessels. Angiogenesis is regulated by a number of factors of peptide nature. Disbalance of angiogenic system appears to be the major causative factor contributing vascular abnormalities in diabetes mellitus, resulting in various complications. Angiostatins, which are kringle-containing fragments of plasminogen/plasmin, are known to be powerful physiological inhibitors of neovascularization. In the present review, current literature data on peculiarities of production of angiostatins and their functioning at diabetes mellitus are summarized and analyzed for the first time. Also, role of angiostatins in the pathogenesis of typical diabetic complications, including retinopathies, nephropathies and cardiovascular diseases, is discussed. Data presented in this review may be useful for elaboration of novel effective approaches for diagnostics and therapy of vascular abnormalities in diabetes mellitus.

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