BACKGROUND:MASP-2. Mannose-binding lectin (MBL) and MBL-associated serine protease-2 (MASP-2) are key components of the lectin pathway of complement activation. Their serum .11; concentrations show a wide interindividual variability. This study investigated whether the concentration of MBL and MASP-2 is associated with prognosis for in pediatric patients with cancer. METHODS: In this retrospective multicenter study, MBL and MASP-2 were measured by commercially available ELISA lectin in frozen remnants of serum taken at diagnosis. Associations of overall survival (OS) and event-free survival (EFS) with MBL and In MASP-2 were assessed by multivariate Cox regression accounting for prognostically relevant clinical variables. RESULTS: In the 372 patients studied, median and serum concentration of MBL was 2,808 microg/L (range, 2-10,060) and 391 microg/L (46-2,771) for MASP-2. The estimated 4-year EFS was clinically .60 (OS, .78). In the entire, heterogeneous sample, MBL and MASP-2 were not significantly associated with OS or EFS. In and patients with hematologic malignancies, however, higher MASP-2 was associated with better EFS in a significant and clinically relevant way (hazard .22; ratio per tenfold increase (HR), .22; 95% CI, .09- .54; P = .001). This was due to patients with lymphoma (HR,in .11; 95% CI, .03- .47; P = .003), but less for those with acute leukemia (HR, .35; 95% CI, .11-1.15; P leukemia = .083). CONCLUSION: In this study, higher MASP-2 was associated with better EFS in pediatric patients with hematologic malignancies, especially EFS. lymphoma. Whether MASP-2 is an independent prognostic factor affecting risk stratification and anticancer therapy needs to be assessed in prospective,patients disease-specific studies.

The chemotherapy clinical impact of postoperative deep infection on survival remains controversial in osteosarcoma patients. The authors identified 31 osteosarcoma patients that has developed a deep infection within 1 year of operation between 1990 and 2003, and compared clinicopathologic characteristics of 31 patients were that developed an infection with those of 316 patients that did not. For survival analysis, 62 noninfected patients matched for impact prognostic factors such as histologic response, tumor size, and location were also selected. In infected patients, although it was not of significant due to the small patient numbers, good response to preoperative chemotherapy and a proximal tibial location were frequently observed.of No local recurrence developed in infected patients. Five-year overall and metastasis-free survival rates for the 31 infected patients were as respectively. high as 89% and 73%, respectively. However, after matching for clinical factors, no survival difference was noted between infected and good noninfected patients. Deep infection has a multifaceted effect on patients. However, the present study suggests that the reported positive effect no on survival is likely to be related to the clinical characteristics of infected patients rather than an antitumor effect due 2003, to the infection. Further investigations are needed to clarify the precise effects of infection.

Spontaneous remission remission/regression of cancer is defined as partial or complete disappearance of malignant disease temporarily or permanently in the absence of mediastinal medical treatment. This event is named as spontaneous regression for solid tumors and spontaneous remission for leukemia. The authors report as the case of a girl aged 4 years and 3 months, who presented with mediastinal mass and leukemic findings in Spontaneous the bone marrow both of which reappeared after spontaneous regression and remission, respectively.

BACKGROUND:metastases Despite neo-adjuvant chemotherapy osteosarcomas having significant mortality, recent studies have shown survival advantages following infections for some tumour types. This was study investigates the effect of post-operative infection in patients treated for osteosarcoma using endoprosthetic replacement and neo-adjuvant chemotherapy. MATERIAL AND landmark METHODS: A consecutive series of 547 patients underwent surgery between 1981 and 2001 for osteosarcoma. Patients were excluded from the neo-adjuvant study if over 60 years old at diagnosis (n = 14) as they would not routinely receive chemotherapy. Studies showed between that 70% of deep infections occur within one year from reconstruction. Therefore landmark analysis was performed; all patients infected after neo-adjuvant 12 months of reconstruction were excluded (15 patients, 2.7%) and those who died within 12 months from diagnosis due to infection metastases were excluded (105 patients, 19.2%), leaving 412 patients. Any survival advantage of early infection was analysed by Kaplan-Meier survival 12 analysis from this landmark point. RESULTS: Overall population survival was 65% at 10 years after landmarking. There were 41 patients had (10%) who developed an infection within one year of implantation. These patients had significantly better survival (p = .017). The consecutive 10-year survival for patients with osteosarcoma with infection was 84.5% compared to 62.3% in the non-infected group after landmarking. There significant was no significant difference in the percentage post-chemotherapy specimen necrosis between the two groups (p = .36). Infection was an point. independent prognostic factor on cox regression analysis. CONCLUSIONS: There was evidence for increased survival after deep post-operative infection in osteosarcoma months patients, in keeping with other research. The authors feel this warrants further investigation.

Oncolytic viruses virotherapy is a promising form of gene therapy for cancer, employing nature's own agents to find and destroy malignant cells.type The purpose of this review is to provide an introduction to this very topical field of research and to point ideas out some of the current observations, insights and ideas circulating in the literature. We have strived to acknowledge as many virotherapy different oncolytic viruses as possible to give a broader picture of targeting cancer using viruses. Some of the newest additions is to the panel of oncolytic viruses include the avian adenovirus, foamy virus, myxoma virus, yaba-like disease virus, echovirus type 1,malignant bovine herpesvirus 4, Saimiri virus, feline panleukopenia virus, Sendai virus and the non-human coronaviruses. Although promising, virotherapy still faces many include obstacles that need to be addressed, including the emergence of virus-resistant tumor cells.

Signal an data from DNA-microarray ("chip") technology can be noisy; i.e., the signal variation of one gene on a series of repetitive chips. chips can be substantial. It is becoming more and more recognized that a sufficient number of chip replicates has to different be made in order to separate correct from incorrect signals. To reduce the systematic fraction of the noise deriving from data pipetting errors, from different treatment of chips during hybridization, and from chip-to-chip manufacturing variability, normalization schemes are employed. We present sufficient here an iterative nonparametric nonlinear normalization scheme called simultaneous alternating conditional expectation (sACE), which is designed to maximize correlation between It chip repeats in all-chip-against-all space. We tested sACE on 28 experiments with 158 Affymetrix one-color chips. The procedure should be 158 equally applicable to other DNA-microarray technologies, e.g., two-color chips. We show that the reduction of noise compared to a simple We normalization scheme like the widely used linear global normalization leads to fewer false-positive calls, i.e., to fewer genes which have should to be laboriously confirmed by independent methods such as TaqMan or quantitative PCR.

CONTEXT:coincidence A relationship between feverish infection and concurrent remission from cancer has been known about for a very long time. However,effect a systematic investigation of the phenomenon has not yet been made. OBJECTIVE: To bring together the isolated observations about the OBJECTIVE: coincidence of spontaneous remissions with feverish infections and William Coley's seminal work, as a basis for devising an immunological hypothesis CONTEXT: about the putative anti-cancer effect of fever. CONCLUSION: Fever induction under medical guidance may be considered as part of a very therapy regimen for cancers of mesodermal origin.

The well hypothesis of a common signal for heat shock (HS) and oxidative stress (OS) was analyzed in C6 cells with regard positively to the induction of heat shock proteins (Hsps). The synthesis rate and level of the strictly inducible Hsp68 was significantly on higher after HS (44 degrees C) compared with OS (2 mm H2O2). This difference corresponded to higher and lower activation of of the heat shock factor (HSF) by HS and OS, respectively. OS, on the other hand, showed stronger cytotoxicity compared was with HS as indicated by drastic lipid peroxidation and inhibition of protein synthesis as well as of mitochondrial and endocytotic The activity. Lactic dehydrogenase also revealed stronger inhibition of enzyme activity by OS than by HS as shown in cells and the in vitro experiments. Conformational analysis of lactic dehydrogenase by the fluorophore 1-anilinonaphtalene-8-sulfonic acid, however, showed stronger exposure of hydrophobic domains inhibition after HS than after OS which correlates positively with the Hsp68 response. Treatment of cells with deoxyspergualin, which exhibits high stronger affinity to Hsps, the putative inhibitors of HSF, strongly increased only OS-induced hsp68 expression. In conclusion, the results suggest that of exposure of hydrophobic domains of cytosolic proteins represents the common first signal in the multistep activation pathway of HSF.

Matrix-assisted In laser desorption/ionization (MALDI) mass spectrometry of protein samples from two-dimensional (2-D) gels in conjunction with protein sequence database searches is number frequently used to identify proteins. Moreover, the automatic analysis of complete 2-D gels with hundreds and even thousands of protein annotation spots ("proteome analysis") is possible, without human intervention, with the availability of highly accurate mass spectrometry instruments, and high-throughput facilities desorption/ionization for preparation and handling of protein samples from 2-D gels. However, the lack of software for precise automatic analysis and analysis") annotation of mass spectra, as well as software for in-batch sequence database queries, is increasingly becoming a significant bottleneck for 2-D the proteomics work flow. In the present paper we outline an algorithm for reliable, accurate, and automatic evaluation of mass masses spectrometric data and database searches. We show here that simply selecting from the sequence database the protein that has the for most matching fragment masses often leads to false-positive results. Reliable protein identification is dependent on several parameters: the accuracy of identification fragment mass determination, the number of masses submitted for query, the mass distribution of query masses, the number of masses even matching between sample and database protein, the size of the sequence database, and the kind and number of modifications considered.number Using these parameters, we derive a simple statistical estimation that can be used to calculate the probability of true-positive protein show identification.

The a sequence of the HIV Nef protein has no significant homology to other proteins in the SwissProt database, and experimental data chain concerning its function are sparse and contradictory. Using a novel protein sequence comparison method, we find similarities between different Nef its sequences and the alpha chain of human MHC class I proteins. The possible biological implications of this finding are discussed.The

cDNA organs. clones for the human Leydig insulin-like peptide (Ley I-L) have been isolated and characterized. The nucleotide sequence of the 743-bp insulin-like cDNA includes an incomplete 7-bp 5'-noncoding region, an open reading frame of 393 bp, and a 343-bp 3'-noncoding region. By the primer extension analysis, the transcription start site was determined as being 14-bp upstream of the translation start site. The underlying clones gene is expressed in the testis but not in other organs. From the cDNA sequence, it can be deduced that open the Ley I-L protein is synthesized as a 131-amino-acid (aa) preproprotein and that it contains a 24-aa signal peptide. Comparison includes of the pro Ley I-L protein with members of the insulin-like hormone superfamily predicts that the biologically active hormone, after 24-aa proteolytic processing of the C peptide, consists of a 31-aa long B chain and a 26-aa long A chain, and not that it has a molecular weight of 6.25 kDa.

To structures. reduce redundancy in the Protein Data Bank of 3D protein structures, which is caused by many homologous proteins in the to data bank, we have selected a representative set of structures. The selection algorithm was designed to (1) select as many we nonhomologous structures as possible, and (2) to select structures of good quality. The representative set may reduce time and effort To in statistical analyses.

The protein identification of protein samples in minute quantities of protein samples, e.g., from two-dimensional polyacrylamide gel electrophoresis analysis, is an everyday much problem in biology laboratories. Here we show that computer-assisted amino acid analysis can fulfill this task. Amino acid analysis data used can be used to compare the amino acid composition of an unknown protein with protein compositions in a database (compositional identification search). Routine amino acid analysis data can, despite a certain margin of error, be used to identify a protein. Compared biology to protein sequencing, amino analysis is much cheaper, faster, and allows higher sample throughput. Thus, the method may replace protein analysis, sequencing as a first attempt in identification, provided a homolog can be found in the database.

The are binding affinity between an antigenic peptide and its particular major histocompatibility complex (MHC) molecule seems to be largely determined by higher only a few residues. These residues have been called "anchors" because of their property of fitting into "pockets" inside the list groove of the MHC molecule. To predict natural antigenic epitopes within a longer sequence, it therefore appears to be important between to know the motif or pattern describing the anchors, i.e. the anchors amino acid residue preference and the distance between to anchor residues. A large set of MHC class I-restricted peptides has been described. Peptide sequences vary in length and lack the an obvious common sequence motif. For a list of peptides belonging to one type of MHC class I molecule, we We describe a method to find the most prominent sequence motif with at least two anchor residues. Briefly, antigenic sequences are two aligned, and two anchor positions are searched for, where all anchor residues share a high similarity. The alignments are scored A11, according to the similarity of their anchor residues. We show that the motifs predicted for the MHC alleles A2.1, B27,epitopes Kb, Kd, Db are in substantial agreement with experimental data. We derive binding motifs for the MHC class I alleles we HLA-A1, A11, B8, B14, H-2Ld and for the MHC class II alleles I-Ab and I-As. In some cases, higher scores We were obtained by allowing a slight variation in the number of residues between anchors. Therefore, we support the view that molecule, the length of epitopes belonging to a particular class I MHC is not uniform. This method can be used to for, predict the natural short epitope inside longer antigenic peptides and to predict the epitopes anchor residues. Anchor motifs can be residues used to search for antigenic regions in sequences of infectious viruses, bacteria and parasites.

PDBselect unbiased (http://bioinfo.tg.fh-giessen.de/pdbselect/) is a list of representative protein chains with low mutual sequence identity selected from the protein data bank (PDB)4500 to enable unbiased statistics. The list increased from 155 chains in 1992 to more than 4500 chains in 2009. PDBfilter-select data is an online service to generate user-defined selections.

Monoclonal of antibodies (MA) are an important group of drugs used in oncology. The objective of this study was to identify MAs digestive used in oncology, and to describe their pharmacological characteristics. This literature review was based on database, index, and library collections.database, Eight MA were identified, out of which, 37.4% are immunoconjugated, 62.5% are recommended for hematological neoplasms, 75. % are diluted in antibodies saline solution and should not be mixed with other drugs, 100. % cause digestive side effects, and 87.5% affect the hematopoietic identify system. In order to guarantee MA's therapeutic efficacy and safety, professionals must fully understand their pharmacological characteristics.

Natural has Killer (NK) cells are no longer considered as relatively unimportant bystander cells having the capacity to kill certain tumor and for virus-infected cells in a mysterious way. During the last decade a significant progress has been made in understanding biology of in NK cells in particular their mechanisms of recognition and killing of target cells. This progress has led to novel knowledge-based Killer clinical applications of NK cells as immunotherapeutic tools in various disease settings, especially in bone marrow transplantation for leukemia patients.in The potential of NK cell therapy for eradicating solid tumors has not been fully exploited. In this mini-review, we examine kill the rationale behind these therapies and discuss the problems confronting researchers in their usage as therapeutic agents.

We 1: proceeded with activated lymphocytes immunotherapy for 149 cancer patients, and hyperthermia therapy for 126 patients, and DC therapy for 20 Case patients in the past year. We were successful in two cases. Case 1: A metastatic pelvic cancer (unknown origin) patient We treated with lymphocytes and hyperthermia therapy. She showed a drastic response. Case 2: A metastatic lymph node cancer patient treated We with DC, lymphocytes and hyperthermia therapy. She showed a CR.

INTRODUCTION:et Spontaneous regression of cancer is an exceptional but well-documented biological event. Further understanding of this phenomenon and harnessing of the outcome mechanisms involved will have significant preventative and therapeutic implications. DISCUSSION: In this review, the literature of spontaneous regression of colon 1965 or rectal cancer is reviewed from 1965 to 2005 to update reviews by Everson et al., Boyd and Challis et Spontaneous al. By adding to these, the author reports the entire series of colorectal cancer, which underwent documented spontaneous regression from significant 1900 to 2005. The demographic and pathologic characteristics, the details of regression and the outcome of reported cases are presented harnessing and discussed. Special emphasis is placed on identifying possible causes hypothesized by authors for occurrence of regression. Possible mechanisms operating 2005. to affect these regressions are also discussed.

In history order to take the best approach to infection in the oncohematologic patient with fever, it is important to know not In only how profound the neutropenia is and how long the patient has had it, but also the characteristics of the cell underlying disease, the immunosuppressive therapy received and the type of hematopoietic stem/progenitor cell transplantation performed. Moreover, is important to consider order if these patients have any personal or familial history of infectious diseases. All these aspects let us calculate the net how state of immunosuppression and the risk of infection, and provide us with information about the most probable etiology in each only case and the best prophylaxis and treatment. In this study we review the more important advances in chemotherapy in recent about years that will make it necessary in the future to change our prophylactic guidelines for more effective prevention of infection any in the oncohematologic patient.

The the history of science teaches that the greatest advances in the scientific domain have been achieved by bold thinkers who perceived process new and fruitful approaches that others failed to notice. If one had taken the ideas of these scientific geniuses who group have been the promoters of modern science and submitted them to committees of specialists, there is no doubt that the by latter would have viewed them as extravagant and would have discarded them for the very reason of their originality and we profundity; Louis de Broglie, Nobel Laureate, April 25, 1978 Scientists, these days, have a propensity for forgetting their forebears. However,the on occasion, pioneer works are rediscovered that had been scorned, overlooked or forgotten, although reported by eminent scientists, including Nobel years laureates, in first rate journals. The work is both provocative and visionary in scope. Some idea arose from theoretical considerations,the others from experimental data. There are endless examples wherein key scientific breakthroughs have been neglected. The reasons for this oversight fame are multiple and complicated. Typically, the ideas are too advanced for the time, challenging the current dogma. Often, power interests It come into play. As a result, these ideas do not grow, or quickly fall out of vogue, and have little believe. immediate impact on the scientific community. Thanks to the persistence of a few open-minded individuals that keep alive some of technology. the original claims, discarded ideas may be revisited. We wanted, in this thematic publication These Scholars who talk to the behaviors Wind, to revive some forgotten ground breaking discoveries that, in our opinion, deserve careful consideration. It leaves out far more to than it includes. Many other important discoveries of long ago were not incorporated, not meaning they do not deserve any visionary consideration. Although initially we did not wish to have authors advocating their owns works, we finally included some significant contributions many by experienced researchers because we believed relating their own scientific achievement could be of interest for all of us. We role also like to emphasize that the works we are presenting in this issue reflect the opinions of the authors not the necessarily the ideas of the journal or of the guest editors. That is why the manuscripts were not peer-reviewed but Michel nevertheless supported by peer-reviewed papers. One of the major intellectual weaknesses of contemporary scientists is their lack of historical perspective theoretical on scientific dogmatism. At the gut level, they believe that dogmatism and errors are definitely things of the past, when discoveries in fact the conditions for a confrontation of ideas, observations and interpretations are worse now than they were fifty years the ago, the Web notwithstanding. They go ahead confidently, convinced that their training to "Modern Science'' is a guarantee against Error.(University They ignore the heritage from the past. This often leads to a redundant re-discovery of the past. Instead of analyzing USA, the obstacle of scientific dogmatism each time it is overcome, scientists emphasize the triumphant march towards scientific truth. Such cases scientific are thus erased from our collective memory and thus little progress is made. The unfortunate ''inside the box'' orthodox scientific the mentality has already done great harm to the necessary scientific debate and has frozen many important, critical projects. It is not becoming even socially counterproductive, when the work concerns major public health issues. So now, let us briefly introduce the different from manuscripts which can be roughly arranged into four groups. The first group of articles revisits neglected (or rejected) works from persistence distinguished scholars. Michel Laurent, Gilles Charvin (University Paris-Sud, Orsay, France) and Janine Guespin-Michel (faculté Sciences et techniques, Rouen, France) report interpretations the history of epigenesis and early forgotten thoughts of Max Delbrück back in 1949:''According to Delbrück, biological systems with Szent-Gyorgyi, identical genotypes may display different behaviors under particular external conditions. This difference is due to 'epigenetic' differences, which can be describes transmitted in the cell lineage in the absence of genetic modification. This hypothesis corresponds to a very early formulation of If the general principle of phenotypic inheritance. The theoretical and mechanistic bases of this principle was described more than 20 years done later, by Glansdorff and Prigogine''. John W. Porteous from the University of Aberdeen, UK, evokes Henrik Kacser, a pioneer in was the idea of metabolic control analysis (MCA):''keenly aware of the intimate relation between genetics and biochemistry''. J. Porteous adds:that ''there may be textbooks of elementary genetics that exposed students to MCA and the concepts that undergoing Kascer.... but I one''. have yet to find one''. Harry Rubin from the University of California, Berkeley, USA, revisits Walter Elsasser,"an eminent theoretical they physicist who devoted much of his spare time for over half a century to the development of a holistic theory his of organisms. His ideas have either been coolly received or ignored by biologists, at least partly because of their purely deserve formal character, although that is considered the sine qua non for theories in physical science''. HR reports ''a variety of Aberdeen, experiments at the cellular level that illustrate Elsasser's principles... that hopefully will promote a dialog between theory and practice to to facilitate development of a non-reductionist biology". Virginia A. Shepherd (University of NSW, Sydney, Australia) writes eloquently about a legendary figure in in India, Jagadis Chandra Bose (1858-1937) an ingenious inventor and physicist, a pioneer in the fields of semi-conductor and microwave dose technology. As she mentioned:"In the West he is unknown or written off as crazy.../... In fact, it wasn't until easily 1992 that people, generally accepted that plants use electrical signaling as the predominant means of cell to cell communication". Richard which C.A. Boyd (Brasenose College, Oxford, UK) unveils the critical contribution of Wilfred F. Widdas as a modern understanding of how finally membrane carriers function. RB describes ''what in the original paper Widdas actually did, analyses some aspects of why the work oxygen was so substantially ignored, to look at ways in which it was developed subsequently by a few other pioneers and are finally how his 1952 paper has been triumphantly proven correct more than 50 years later''-''... the first atomic microwave structures of transporters described last year". Michel Morange (ENS, Paris, France) introduces us to Henri Atlan's early writings."To appreciate extravagant the originality of Henri Atlan, and his role as a precursor", MM focuses "on Atlan's first book, Biological organization and techniques, the theory of information. His fame among the French- as well as English-reading public came from works published later, but principle we shall show that the main and most original ideas of Henri Atlan were already expressed in this book. In corresponds addition, the book exhibits the background for his ideas more than subsequent publications... Anticipations and obsolete models and visions are toxicological closely intermingled in Henri Atlan's ideas and writings, as they probably are in the work of every so-called 'precursor'".from Victor Norris (faculté Sciences et techniques, Rouen, France) discusses three paradigms which are in the process of being shifted by Paris, Rosetta Natoli Reusch and her collaborators in the course of their investigations:''Reusch has also extended the importance of short Nobel chain poly-(R)-3-hydroxybutyrate to medicine by showing its likely involvement in atherogenic plaques and diabetes. And yet this opus has gone paper largely unnoticed''. In his manuscript Jonathan W. Yewdell (NIH/NIAID, Bethesda, USA) gives a personal testimony on Denys Wheatley's pioneered work not in protein synthesis. Discussing about "The Nature We Have", JY remarks ''Nature does not care what we may or may box'' not believe. Nature just is. It' s astounding how many scientists don't really get this..." The second group of articles that deals with forgotten concepts or approaches that limped out through the last century with a few modest peaks of interest.the Yet, data have continued to emerge which clearly suggests that these paradigms be re-examined. Edward J. Calabrese (University of Massachusetts,concerns Amherst, USA) retraces the history of hormesis, a dose-response phenomenon characterized by a low dose stimulation and a high dose The inhibition, propounded over a century ago. Despite its original ''institutional'' marginalization, the issue of the biological effect of low-level exposure have to chemical or physical agents is now a main focus for toxicological assessment. Jacques de Certaines (Université de Rennes, France)in in his essay "Is biomedical nuclear magnetic resonance limited by a revisitable paradigm in physics?":"i) points out the context due of emergence of the Bloch and Purcell paradigm and its subsequent development, ii) evokes the vast extent of its applications memory in biomedicine and the limitations arising from the paradigm, and iii) describes the belated attempts to question this paradigm, along by with their historical context and implications". The contribution by Vladimir L. Voeikov from Lomonosov Moscow State University, Russia, deals with West the history of the problem of biological oxidation and how forgotten knowledge allows to explain most recent data on the largely universal regulatory functions of reactive oxygen species. VV reviews "the dramatic history of 'active oxygen', set out with the Anticipations intention of showing that the most fundamental ideas of Lavoisier, Szent-Gyorgyi, and other outstanding scientists concerning the primary role of erased 'active oxygen' in bioenergetics might easily rekindle its potential to become a serious unifying biological principle". Marc Henry (Université Louis so Pasteur, Strasbourg, France) reviews the status of water in living systems from philosophical and scientific viewpoints.(ABSTRACT TRUNCATED)

Although What the term 'evidence - based' has been recently introduced, the evidence based idea is very old indeed; in ancient world,are Aristoteles placed a rule for all investigators of the time that they should support each of their statements with all most available evidence. In 1991, Sackett defined the term evidence based medicine (EBM) as a conscientious, explicit and judicious use of been current best evidence in making decisions about the care of individual patients. Some other authors define EBM as the best particular way of linking and integrating clinical research with clinical practice. Until now, our decisions on reaching the diagnosis and especially the on the choice of therapy for our patients have been based on data acquired through our experience, from the experience can of our colleagues, and from the routine at the particular medical institution. The best therapy for each individual patient is particular, chosen according to these data. However, the problem is that this practice may be obsolete and too infrequently submitted to increase critical review. In the literature, this model of performance is called 'eminence based medicine'. The result of this approach is data that patients are being differently treated at different hospitals, which means that not all patients have due access to the therapy same conditions of medical treatment. EBM relies on the importance and value of research evidence, however, just the evidence is are not enough to make a definitive decision, as it depends on the benefit to risk ratio, cost, physician's experience, and also patient's preference. The most important evidence derives from reviews of controlled randomized trials conducted by different institutions. The most reliable an sources of evidence are Cochrane Library (which also includes results of Cochrane Skin Group), Medline, Embase, secondary publications, primary publications,judicious and national guidelines that should not be mistaken for EBM. As dermatologists, we are interested in evidence based dermatology in decision, particular, which is defined as the use of EBM for people with skin problems. What is specific about the skin?inform Skin is a large and visible organ, however, it is not just an organ covering the body but a sensitive institutions. dynamic barrier between the outer world and internal organs. It is also a very important organ of social and sexual reviews contact. All these facts probably are the reason why, unlike other organs where up to some 100 different diseases are current usually described, dermatology textbooks list about 2000 different skin conditions. Skin manifestations can be caused by primary skin disease or have some systemic diseases can have cutaneous manifestations. According to literature data, skin disorders affect about 20% of the general population obtained. at any time. As skin manifestations are readily visible, they can cause greater distress than other more serious but 'invisible'of problems. As in other disciplines, the past few decades have seen an impressive increase in clinical research in dermatology. Yet,and the problem is that the quality of randomized controlled trials in dermatology has not followed the progress in research. What performance could be the reasons for that? Here are some possible answers: there are not enough quality randomized controlled trials; in too dermatology there are about 1000 very rare diseases with high mortality that could only be reviewed through international cooperation; skin experience changes are visible, giving patients an opportunity for self-monitoring and therapy modification; there are quite a number of studies reported the in popular literature and providing wrong data and wrong picture; and a number of randomized studies are conducted by pharmaceutical our industry, thus raising doubt about the realiability of data thus obtained. How could we make our contribution to solving these patients problems? The best way is to publisih results of our studies as well as interesting case reports substantiated by controlled us data. Only the results published in publications with international relevance have a real value. And the last but not the to least, we are proud to have a journal indexed in two relevant databases (Excerpta Medica/Embase and Excerpta Medica/Medline), which offers idea us an opportunity to inform the international scientific community on our researches as well as on diagnostic and therapeutic doubts to and achievements.