Tumor diagnosis

Xem 1-20 trên 135 kết quả Tumor diagnosis
  • a-enolase (ENOA) is a metabolic enzyme involved in the synthesis of pyru-vate. It also acts as a plasminogen receptor and thus mediates activation of plasmin and extracellular matrix degradation. In tumor cells, EMOAis upregulated and supports anaerobic proliferation (Warburg effect), it is expressed at the cell surface, where it promotes cancer invasion

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  • The practicing radiologist is continually challenged to update his/her competencies so as to deliver state-of-the-art radiological care. Nowhere is this truer than in the rapidly evolving world of magnetic resonance imaging, where innovations in both technology and diagnostic pharmaceuticals have dramatically altered the landscape of practice.

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  • Clinical course of CLL is variable. Recently, progress has been made in the identification of biological markers that could predict disease progression. Particularly, the expression of unmutated Ig genes, some cytogenetic abnormalities like 17p and 11q deletions and the expression of the zeta-associated protein 70 (ZAP-70) are associated to a poor prognosis.

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  • Over the past 20 years, technological advances in molecular biology have proven invaluable to the understanding of the pathogenesis of human cancer. The application of molecular technology to the study of cancer has not only led to advances in tumor diagnosis, but has also provided markers for the assessment of prognosis and disease progression. The aim of Molecular Analysis of Cancer is to provide a comprehensive collection of the most up-to-date techniques for the detection of molecular changes in human cancer.

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  • The prognosis for individuals with liver cancer is frequently poor. Cancers include those which have metastasized to the liver from elsewhere, reflecting advanced stage disease where cure is rarely possible. Similarly, primary liver cancer frequently complicates chronic liver disease, which further limits therapeutic options. Despite these dismal facts, there are signs that change is imminent. Not only have imaging modalities and surgical techniques improved, but preventive strategies and medical therapies show promise.

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  • Such an integrative approach in basic and clinical gastroenterology seems to be essential for the pathomechanism, proper diagnosis and management of patients who suffer from gastrointestinal disorders. The potential reader will not only find in this book the recent advances in the physiology and pathomechanism of GI tract disorders, but also the treatment options based on pharmacological and surgical intervention and the recent advances in the biological therapy with probiotics and prebiotics, which nowadays is a rapidly growing area of interest.

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  • Breast cancer remains a leading cause of cancer death among women in the United States. More than 180,000 new cases of invasive breast cancer are diagnosed each year, and more than 40,000 women die of the disease. Recent years, however, have seen improvements in survival attributed to better treatment and earlier diagnosis. Research efforts have been directed toward better treatment, preventive strategies, and early detection.

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  • This book presents the salient features of optic nerve disorders, encompassing optic neuritis, papilledema, ischemic optic neuropathies, compressive and infi ltrative optic neuropathies, traumatic optic neuropathies, nutritional and toxic optic neuropathies, hereditary optic neuropathies, and optic disc tumors. Chapters 1 to 9 outline key clinical aspects of each of these disorders. Chapter 10 illustrates some newer applications of optical coherence tomography (OCT) in monitoring optic nerve-related processes causing retinal nerve fi ber layer loss and in ruling out retinal disorders....

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  • Great advances have been performed in the understanding, diagnosis and treatment of these diseases but the search of specific protective or risk biomarkers is an unsolved field. Since completion of the human genome project a rapid progress in genetics and bioinformatics have enabled the development of multiple tools as well as a large public databases, which include genetic and genomic data linked to clinical health data.

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  • Admission to veterinary programmes around the globe is a highly competitive process, with candidates typically required to attain top grades in science-based subjects to qualify for entry. Owing to the large number of applicants to veterinary schools, interviews often form part of the selection process. Although curricula will vary from provider to provider, veterinary programmes are extremely intensive courses of study and typically include pre- clinical, para-clinical and clinical components.

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  • This book deals with problems which are sufficiently important to become the subject of studies. Cancer of the stomach remains one of the most pressing medical problems. Meanwhile, scientific and practical interest in this problem has markedly diminished during recent years. According to some experts, this can be explained first by the decreasing incidence of gastric cancer. But this concerns only some developed countries, where effective measures are taken for the prevention and early diagnosis of malignant tumors.

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  • Although in many trials haloperidol has been used as the standard comparator, the clinical trial evidence for haloperidol itself is much less impressive than one might expect (Barry et al 2012). By their very nature systematic reviews and RCTs provide only average indices of probable efficacy in groups of individuals recruited to the study in question. Although many RCTs attempt to limit inclusion criteria to a single category of diagnosis from DSM4 or ICD10, many studies include individuals with different types of schizophrenic diagnosis such as schizoaffective disorder.

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  • One unsolved issue concerns the role of the clonal B-cell receptor (BCR) in disease progression. Despite the fact that low expression of the BCR correlates with reduced induction of protein tyrosine kinase activity and defective intracellular calcium mobilization and tyrosine phosphorylation [66] this receptor conserves the capacity of antigen recognition and signaling, controlling thereby key behaviors of tumor cell, like proliferation and cell survival. Individual patients have different responses to IgM ligation which are related to VH gene status.

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  • The tendinous chords, as functional extensions of the papillary muscles, perform the dual function of maintaining valvular competence by preventing leaflet prolapse and maintaining ventricular geometry by providing cross-ventricular support. The chords originate from the apical portions of the papillary muscles or directly from the posterior ventricular wall. They insert either into the free edge of the leaflets or on their ventricular surface. Chords have been characterized a number of ways.

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  • With a gloved index finger inserted into the rectum with a Silverman biopsy needle applied close to the finger with the tip of the needle in line with the tip of the finger and the bevel edge facing away from the finger. The needle is then rotated half a turn so that the beveled edge is against the finger. This avoided an inadvertent needlestick injury. The abnormal area was palpated and the needle directed through the rectal mucosa and towards the area, but not into it.

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  • We especially paid attention not to distend the bladder too much to prevent a high irrigation pressure and a resultant TUR syndrome. Special attention was paid to avoid the injury to Santorini’s plexus and the rectum. The procedure was started from the 12 o’clock position, dividing the prostate into 6 parts, and resected specimens were collected separately to examine the distribution of cancer. The seminal vesicle was partially resected at its attached part to the prostate between the 4 and 8 o’clock positions to determine the invasion of cancer.

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  • The terms selectivity and specificity are often used interchangeably, the term specific generally refers to a method that produces a response for a single analyte only, while the term selective refers to a method that provides responses for a number of chemical entities that may or may not be distinguished from each other. If the response is distinguished from all other responses, the method is said to be selective.

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  • Some urinary tract disorders rarely cause symptoms until the problem is very advanced; these include kidney failure, tumors and stones that do not block urine flow, and some low-grade infections. Sometimes, symptoms occur but are very general and difficult for the doctor to connect to the kidney. For example, a general feeling of illness (malaise), loss of appetite, nausea, or generalized itching may be the only symptoms of chronic kidney failure. In older people, mental confusion may be the first recognized symptom of infection or kidney failure. ...

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  • Today, computed tomography (CT) is the most commonly used imaging method in the assessment of pancreatic tumors. The sensitivity of CT in detection of pancreatic tumors is more than 90% when direct and indirect signs are used for diagnosis. However, the potential to differentiate exocrine (non-endocrine) tumors of the pancreas is limited. CT is used in these lesions to perform an adequate staging, especially for surgical purposes. The operative resectability, primarily in regard to vessels, lymph node metastasis and hepatic metastasis, has to be assessed....

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  • Electronic Medical Records now act as main repositories for patient data. As we con- tinue to explore the intricate relationship between phenotype and genotype, these records become a vital source for monitoring patients’ progression of disease. The pre- sence of a given variation, as it relates to the appearance or absence of disease over time, can be mapped as encounters are recorded by clinicians. Every result, encounter, event, or diagnosis is recorded as a data item and includes a date.

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