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Annual Review of Medicine - Volume 55, 2004
Volume 55, 2004
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Recent Advances in the Development of HIV-1 Vaccines Using Replication-Incompetent Adenovirus Vectors
Vol. 55 (2004), pp. 355–372More LessAn increasing body of evidence suggests that a vaccine that elicits anti-HIV-1 cellular immunity could provide the basis for an effective AIDS vaccine. Comparative immunization experiments testing a variety of vaccine approaches have demonstrated that replication-incompetent adenovirus vectors are an effective means for eliciting cytotoxic T-lymphocyte (CTL) immune responses against HIV-1 antigens. These immune responses effectively control viremia in nonhuman primates following challenge with simian AIDS viruses. Such data, coupled with epidemiology studies that identify HIV-1 gag, pol, and nef as the best antigens for broadly directed cellular immune responses, provide guidance for the development of a potential AIDS vaccine.
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Left Ventricular Diastolic Dysfunction and Diastolic Heart Failure
Vol. 55 (2004), pp. 373–394More LessThirty to fifty percent of patients presenting with signs and symptoms of heart failure have a normal left ventricular (LV) systolic ejection fraction. The clinical examination cannot distinguish these patients (diastolic heart failure) from those with a depressed ejection fraction (systolic heart failure), but echocardiography can. The management of diastolic heart failure has two major objectives. The first is to reverse the consequences of diastolic dysfunction (e.g., venous congestion), and the second is to eliminate or reduce the factors responsible for diastolic dysfunction (e.g., myocardial hypertrophy, fibrosis, and ischemia).
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Mechanisms of Pulmonary Fibrosis
Vol. 55 (2004), pp. 395–417More LessTissue injury evokes highly conserved, tightly regulated inflammatory responses and less well-understood host repair responses. Both inflammation and repair involve the recruitment, activation, apoptosis, and eventual clearance of key effector cells. In this review, we propose the concept of pulmonary fibrosis as a dysregulated repair process that is perpetually “turned on” even though classical inflammatory pathways may be dampened or “switched off.” Significant regional heterogeneity, with varied histopathological patterns of inflammation and fibrosis, has been observed in individual patients with idiopathic pulmonary fibrosis. We discuss environmental factors and host response factors, such as genetic susceptibility and age, that may influence these varied manifestations. Better understanding of the mechanisms of lung repair, which include alveolar reepithelialization, myofibroblast differentiation/activation, and apoptosis, should offer more effective therapeutic options for progressive pulmonary fibrosis.
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Systemic Mastocytosis *
Cem Akin, and Dean D. MetcalfeVol. 55 (2004), pp. 419–432More LessSystemic mastocytosis is a clonal disorder of the mast cell and its progenitor. The symptoms of systemic mastocytosis are due to the pathologic accumulation and activation of mast cells in various tissues such as bone marrow, skin, gastrointestinal tract, liver, and spleen. Recent studies revealed striking differences between the molecular and cellular biology of mast cells in patients with mastocytosis and those of healthy individuals. These findings are being used in formulating diagnostic criteria as well as designing novel treatment approaches to the disease.
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The erbB Family: Targets for Therapeutic Development Against Cancer and Therapeutic Strategies Using Monoclonal Antibodies and Tyrosine Kinase Inhibitors
Vol. 55 (2004), pp. 433–457More LessThe overexpression and aberrant function of members of the erbB family of receptors, particularly erbB1 (also known as epidermal growth factor receptor), and its ligands in many human cancers have provided a rationale for targeting this signaling network with novel approaches. erbB1 is a selective target for inhibiting cancers because its activation often confers a proliferative advantage. Activation of the erbB1 tyrosine kinase provides signals that drive dysregulated proliferation, invasion, metastasis, angiogenesis, and cell survival, and its inhibition has potential in both the treatment and prevention of these malignancies. Based on the structure and function of erbB1, two therapeutic strategies have been developed. The first uses human monoclonal antibodies (MAbs) generated against the receptor's ligand-binding extracellular domain. These MAbs block binding of receptor-activating ligands, and, in some cases, can induce receptor endocytosis and downregulation. The second uses small molecules that compete with adenosine triphosphate (ATP) for binding to the receptor's kinase pocket, thereby blocking receptor activation and the transduction of postreceptor signals. Early clinical studies suggest that both approaches are well tolerated and can induce clinical activity in many common malignancies.
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Nonmyeloablative Allogeneic Immunotherapy for Solid Tumors *
Vol. 55 (2004), pp. 459–475More LessOver the past decade, considerable advances have been made in the field of allogeneic hematopoietic stem cell transplantation. Recognition that transplanted donor immune cells can cure patients with leukemia has led to the development of nonmyeloablative or “low-intensity” conditioning regimens, which have expanded the application of allogeneic transplantation to a growing number of hematological malignancies. The improved safety and preliminary success of this transplant approach have justified applying allogeneic immunotherapy to patients with treatment-refractory solid tumors.
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Rituximab: Expanding Role in Therapy for Lymphomas and Autoimmune Diseases
Vol. 55 (2004), pp. 477–503More LessRituximab (Rituxan®) is a human-mouse chimeric monoclonal antibody that targets the B-cell CD20 antigen and causes rapid and specific B-cell depletion. Rituximab was approved in the United States in 1997 to treat low-grade or follicular, relapsed or refractory, CD20-positive B-cell non-Hodgkin's lymphoma (NHL). Since then, further clinical experience with rituximab has been incorporated into the prescribing information, which now stipulates an extended eight-week schedule, treatment of patients with refractory or relapsed bulky disease measuring >10 cm, and retreatment of patients who responded to rituximab previously. In 1998, the European Union approved rituximab (MabThera®) to treat stage III/IV, follicular, chemotherapy-resistant, or relapsed NHL. Recently, the European Union also approved the use of rituximab in combination with standard chemotherapy for aggressive NHL. Many clinical trials have evaluated rituximab, alone or with other therapies, in indolent and aggressive NHL as well as other B-cell lymphoproliferative disorders. New studies are evaluating rituximab's role in first-line therapy, maintenance therapy, and stem-cell transplantation procedures. The use of rituximab against autoimmune disorders, such as rheumatoid arthritis, immune thrombocytopenic purpura, autoimmune hemolytic anemia, systemic lupus erythematosus, and multiple sclerosis, is also under investigation.
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Botulinum Toxin and Other New Approaches to Migraine Therapy
Vol. 55 (2004), pp. 505–518More LessThe number of migraine treatments and our understanding of migraine pathophysiology are both increasing. Newer treatments focus on migraine prevention. Botulinum toxin (BTX) is a potent neurotoxin used primarily to treat diseases associated with increased muscle activity. Recently, BTX was found to have antinociceptive effects that are probably independent of its muscle-relaxant action. Clinical trials support the efficacy of BTX type A (and possibly also type B) in the treatment of migraine. The anticonvulsant topiramate was recently shown to be effective for migraine prevention. At the low doses used for this indication, cognitive side effects are not a major concern. Another new approach to migraine prevention is angiotensin type 1 (AT1) receptor blockade. The high tolerability of the AT1 receptor blocker candesartan warrants further studies to assess its role in migraine prevention.
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Management of Infections in the Neutropenic Patient
Vol. 55 (2004), pp. 519–526More LessNeutropenic patients continue to be at increased risk for developing serious infections despite substantial advances in supportive care. Epidemiologic shifts occur periodically and need to be detected early because they influence prophylactic, empiric, and specific therapy strategies. Although effective in preventing bacterial and some fungal infections, prophylaxis must be used with caution because it is associated with the emergence of resistance. The choices for empiric therapy include combination regimens and monotherapy. Specific choices depend on local factors (epidemiology, susceptibility/resistance patterns, availability). Various treatment settings (hospital-based, early discharge, outpatient) are also available, and the choice depends on the patient's risk category. Early diagnosis and treatment of many fungal and viral infections remains suboptimal. Infection control and prevention are important strategies, especially with the emergence of multidrug-resistant organisms.
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Previous Volumes
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Volume 76 (2025)
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Volume 75 (2024)
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Volume 74 (2023)
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Volume 73 (2022)
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Volume 72 (2021)
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Volume 71 (2020)
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Volume 70 (2019)
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Volume 69 (2018)
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Volume 68 (2017)
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Volume 67 (2016)
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Volume 66 (2015)
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Volume 65 (2014)
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Volume 64 (2013)
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Volume 63 (2012)
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Volume 62 (2011)
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Volume 61 (2010)
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Volume 60 (2009)
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Volume 59 (2008)
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Volume 58 (2007)
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Volume 57 (2006)
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Volume 56 (2005)
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Volume 55 (2004)
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Volume 54 (2003)
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Volume 53 (2002)
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Volume 52 (2001)
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Volume 51 (2000)
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Volume 50 (1999)
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Volume 49 (1998)
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Volume 48 (1997)
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Volume 47 (1996)
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Volume 46 (1995)
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Volume 45 (1994)
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Volume 44 (1993)
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Volume 43 (1992)
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Volume 42 (1991)
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Volume 41 (1990)
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Volume 40 (1989)
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Volume 39 (1988)
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Volume 38 (1987)
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Volume 37 (1986)
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Volume 36 (1985)
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Volume 35 (1984)
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Volume 34 (1983)
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Volume 33 (1982)
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Volume 32 (1981)
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Volume 31 (1980)
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Volume 30 (1979)
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Volume 29 (1978)
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Volume 28 (1977)
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Volume 27 (1976)
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Volume 26 (1975)
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Volume 25 (1974)
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Volume 24 (1973)
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Volume 23 (1972)
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Volume 22 (1971)
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Volume 21 (1970)
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Volume 20 (1969)
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Volume 19 (1968)
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Volume 18 (1967)
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Volume 17 (1966)
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Volume 16 (1965)
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Volume 15 (1964)
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Volume 14 (1963)
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Volume 13 (1962)
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Volume 12 (1961)
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Volume 11 (1960)
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Volume 10 (1959)
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Volume 9 (1958)
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Volume 8 (1957)
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Volume 7 (1956)
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Volume 6 (1955)
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Volume 5 (1954)
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Volume 4 (1953)
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Volume 3 (1952)
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Volume 2 (1951)
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Volume 1 (1950)
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Volume 0 (1932)