171 research outputs found

    The Life of the Parties: Activists in Presidential Politics

    Get PDF
    Commentators, especially since the Democratic party reforms following 1968, have expressed serious concerns about the role of party activists in the American political system. Have they become so concerned with ideological purity that they are unable to nominate strong candidates? Are activists loyal only to particular interest groups, with little concern for the parties as institutions? Are the reformed nominating procedures open to takeover by new activists, who exit the party immediately after the presidential nominations fight? With such an unrepresentative set of activists, can parties adjust to changing environments? Based on a survey of more than 17,000 delegates to state presidential nominating conventions in eleven states in 1980, this pathbreaking book addresses these questions in a comprehensive way for the first time. Heretofore most of the generalizations about party activists in the presidential nomination process have been based on studies of national convention delegates, in particular those attending the 1972 conventions. But those delegates were atypical activists, as this book shows. The state of the activist stratum of the parties differs from what many of the critics have suggested. Ronald B. Rapoport and John McGlennon are associate professors of government at the College of William and Mary. Alan I. Abramowitz is an associate professor of political science at the State University of New York, Stony Brook. The research presented here is impressive and sophisticated in its methods. . . The only comprehensive study of caucus delegates that I have seen. —Perspective A significant attempt to bring new and extensive data to the study of party activists and cadres. —Political Science Quarterlyhttps://uknowledge.uky.edu/upk_political_science_american_politics/1028/thumbnail.jp

    Recent advances, patient selection & challenges in managing cancer patients undergoing treatment with immune checkpoint inhibitors

    Get PDF
    This editorial is published on the occasion of World Cancer day - February 4, 2022.Cancer immunotherapy with humanized monoclonal antibodies (mAbs) that target co-inhibitory immune checkpoint molecules (ICMs) is the most meaningful advance in the management of malignant diseases in recent years. This has coincided with the acquisition of eloquent, cutting edge insights into the molecular mechanisms, which regulate cell–cell interactions that are fundamental to maintain a balanced, well-synchronized human immune system. These developments have also revitalized the practice of immunotherapy, especially the realization of novel immunomodulatory therapeutic modalities that have the potential to restore weakened anti-cancer immune responses.The Cancer Association of South Africa and the National Research Foundation of South Africa.https://journals.lww.com/ijmr/pages/default.aspxam2023Immunolog

    Talking Politics on Facebook: Network Centrality and Political Discussion Practices in Social Media

    Get PDF
    This study examines the relationship between political discussion on Facebook and social network location. It uses a survey name generator to map friendship ties between students at a university and to calculate their centralities in that network. Social connectedness in the university network positively predicts more frequent political discussion on Facebook. But in political discussions, better connected individuals do not capitalize equally on the potential influence that stems from their more central network locations. Popular individuals who have more direct connections to other network members discuss politics more often but in politically safer interactions that minimize social risk, preferring more engaged discussion with like-minded others and editing their privacy settings to guard their political disclosures. Gatekeepers who facilitate connections between more pairs of otherwise disconnected network members also discuss politics more frequently, but are more likely to engage in risk-tolerant discussion practices such as posting political updates or attempting political persuasion. These novel findings on social connectedness extend research on offline political discussion into the social media sphere, and suggest that as social network research proliferates, analysts should consider how various types of network location shape political behavior

    Networks of Mobilization: Student Involvement in a Municipal Election

    Get PDF
    An enduring issue in the study of political participation is the extent to which political awareness and engagement are socially or individually motivated. We address these issues in the context of a municipal election which generated a high level of political engagement on the part of college students for whom the election was relevant. An effort was made to interview all these students using an on-line survey, and the students were asked to provide information on their friendship networks. The paper demonstrates that awareness and engagement are not simply a consequence of individually defined interests and awareness, but rather that individuals are informed and engaged based on their locations within structured networks of social interaction

    MASCC 2020 recommendations for the management of immune-related adverse events of patients undergoing treatment with immune checkpoint inhibitors

    Get PDF
    Oncoimmunotherapy with immune checkpoint inhibitor–targeted antibodies has developed as the most significant advance in the management of cancer in recent years. The concept that the immune system was unsuccessful in protecting humans against the development of cancer has changed over the last decade. Checkpoint molecules are inhibitory (PD-1, PDL-1, CTLA-4, TIM-3, LAG-3, BTLA, and HEVM) and stimulatory (CD27, CD40, OX40, GITR, ICOS, and CD137) co-receptors expressed mostly by T cells, but also by other immune cells including antigen-presenting dendritic cells. The basic function of these inhibitory co-receptors is to negatively regulate T cell activation, which is critical in the maintenance of peripheral self-tolerance. The co-inhibitory receptor ligands for these immune checkpoint molecules are, however, also significantly upregulated in various types of cancers, resulting in evasion of anticancer immunity.The Cancer Association of South Africa (CANSA) and the National Research Foundation (NRF) of South Africa.http://link.springer.com/journal/5202021-09-04hj2020Immunolog

    Tuberculosis infection in a patient treated with Nivolumab for non-small cell lung cancer : case report and literature review

    Get PDF
    Nivolumab (PD-1 inhibitor) and other immune checkpoint inhibitors are used primarily to promote reactivation of anti-tumor immunity. However, due to their generalized immunorestorative properties, these agents may also trigger an unusual spectrum of side-effects termed immune-related adverse events. In the case of the lung, pulmonary infiltrates in patients treated with the anti-PD-1 inhibitors, nivolumab, or pembrolizumab, especially patients with non-small cell lung cancer, can result from immune-related pneumonitis, which, until fairly recently was believed to be of non-infective origin. This, in turn, may result in progression and pseudo-progression of disease. An increasing body of evidence has, however, identified pulmonary tuberculosis as an additional type of anti-PD-1 therapy-associated, immune-related adverse event, seemingly as a consequence of excessive reactivation of immune responsiveness to latentMycobacteriumtuberculosis infection. The current case report describes a 56-year old Caucasian female who presented with microbiologically-confirmed tuberculosis infection while on nivolumab therapy for non-small cell lung cancer. Notably, the patient, seemingly the first described from the African Continent, had not received immunosuppressive therapy prior to the diagnosis of tuberculosis.http://www.frontiersin.org/Oncologyam2020Immunolog

    Treatment of infections in cancer patients : an update from the neutropenia, infection and myelosuppression study group of the Multinational Association for Supportive Care in Cancer (MASCC)

    Get PDF
    INTRODUCTION : Patients with hematological and advanced solid malignancies have acquired immune dysfunction, often exacerbated by treatment, posing a significant risk for the development of infections. This review evaluates the utility of current clinical and treatment guidelines, in the setting of management of infections in cancer patients. AREAS COVERED : These include causes of infection in cancer patients, management of patients with high-risk and low-risk febrile neutropenia, management of low-risk patients in an outpatient setting, the role of granulocyte colony-stimulating factor (G-CSF) in the prevention and treatment of neutropenia-related infections, management of lung infections in various clinical settings, and emerging challenges surrounding the risk of infection in cancer patients treated with novel treatments. The literature search was performed by accessing PubMed and other databases, focusing on published clinical trials of relevant anti-cancer agents and diseases, primarily covering the recent past, but also including several key studies published during the last decade and, somewhat earlier in a few cases. EXPERT REVIEW : Notwithstanding the promise of gene therapy/gene editing in hematological malignancies and some types of solid cancers, innovations introduced in clinical practice include more discerning clinical management such as the generalized use of biosimilar formulations of G-CSF and the implementation of novel, innovative immunotherapies.The Cancer Association of South Africa (CANSA) and the National Research Foundation (NRF) of South Africa.http://tandfonline.com/toc/ierj20hj2022Immunolog

    Pulmonary toxicities associated with the use of immune checkpoint inhibitors: an update from the Immuno-Oncology Subgroup of the Neutropenia, Infection & Myelosuppression Study Group of the Multinational Association for Supportive Care in Cancer

    Get PDF
    The development of immune checkpoint inhibitors (ICIs) has revolutionized cancer treatment, with agents such as nivolumab, pembrolizumab, and cemiplimab targeting programmed cell death protein-1 (PD-1) and durvalumab, avelumab, and atezolizumab targeting PD-ligand 1 (PD-L1). Ipilimumab targets cytotoxic T lymphocyte-associated antigen-4 (CTLA-4). These inhibitors have shown remarkable efficacy in melanoma, lung cancer, urothelial cancer, and a variety of solid tumors, either as single agents or in combination with other anticancer modalities. Additional indications are continuing to evolve. Checkpoint inhibitors are associated with less toxicity when compared to chemotherapy. These agents enhance the antitumor immune response and produce side- effects known as immune-related adverse events (irAEs). Although the incidence of immune checkpoint inhibitor pneumonitis (ICI-Pneumonitis) is relatively low, this complication is likely to cause the delay or cessation of immunotherapy and, in severe cases, may be associated with treatment-related mortality. The primary mechanism of ICIPneumonitis remains unclear, but it is believed to be associated with the immune dysregulation caused by ICIs. The development of irAEs may be related to increased T cell activity against cross-antigens expressed in tumor and normal tissues. Treatment with ICIs is associated with an increased number of activated alveolar T cells and reduced activity of the anti-inflammatory Treg phenotype, leading to dysregulation of T cell activity. This review discusses the pathogenesis of alveolar pneumonitis and the incidence, diagnosis, and clinical management of pulmonary toxicity, as well as the pulmonary complications of ICIs, either as monotherapy or in combination with other anticancer modalities, such as thoracic radiotherapy.http://www.frontiersin.org/Pharmacologyam2022ImmunologyInternal Medicin

    Emerging challenges in the evaluation of fever in cancer patients at risk of febrile neutropenia in the era of COVID-19 : a MASCC position paper

    Get PDF
    Patients with cancer are at higher risk of more severe COVID-19 infection and have more associated complications. The position paper describes the management of cancer patients, especially those receiving anticancer treatment, during the COVID-19 pandemic. Dyspnea is a common emergency presentation in patients with cancer with a wide range of differential diagnoses, including pulmonary embolism, pleural disease, lymphangitis, and infection, of which SARS-CoV-2 is now a pathogen to be considered. Screening interviews to determine whether patients may be infected with COVID-19 are imperative to prevent the spread of infection, especially within healthcare facilities. Cancer patients testing positive with no or minimal symptoms may be monitored from home. Telemedicine is an option to aid in following patients without potential exposure. Management of complications of systemic anticancer treatment, such as febrile neutropenia (FN), is of particular importance during the COVID-19 pandemic where clinicians aim to minimize patients’ risk of infection and need for hospital visits. Outpatient management of patients with low-risk FN is a safe and effective strategy. Although the MASCC score has not been validated in patients with suspected or confirmed SARS-CoV-2, it has nevertheless performed well in patients with a range of infective illnesses and, accordingly, it is reasonable to expect efficacy in the clinical setting of COVID-19. Risk stratification of patients presenting with FN is a vital tenet of the evolving sepsis and pandemic strategy, necessitating access to locally formulated services based on MASCC and other national and international guidelines. Innovative oncology services will need to utilize telemedicine, hospital at home, and ambulatory care services approaches not only to limit the number of hospital visits but also to anticipate the complications of the anticancer treatments.http://link.springer.com/journal/520hj2022Immunolog

    Evaluation of circulating soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) to predict risk profile, response to antimicrobial therapy, and development of complications in patients with chemotherapy-associated febrile neutropenia : a pilot

    Get PDF
    The soluble Triggering Receptor Expressed on Myeloid cells 1 (sTREM-1) is a useful marker of infection in patients with sepsis, but has not been adequately evaluated in patients with chemotherapy-associated febrile neutropenia (FN). The value of sTREM-1 in this setting has been tested in a retrospective, pilot study using stored serum from 48 cancer patients with documented FN. On presentation, patients were categorized according to the Talcott risk-index clinical score. Circulating soluble sTREM-1 was measured using an ELISA procedure, while procalcitonin (PCT) or interleukins 6 (IL-6) and 8 (IL-8), included for comparison, were measured using an immunoluminescence-based assay and Bio-Plex suspension bead array system, respectively. Circulating concentrations of both sTREM-1 and PCT were significantly (P < 0.05) elevated in patients at high risk for complications or death, as predicted by the Talcott score and were significantly lower in patients who responded to empiric antimicrobial agents. Neither IL-6 nor IL-8 accurately predicted serious complications in patients with FN. These observations, albeit from a pilot study, demonstrate that sTREM-1 is indeed elevated in high-risk patients with FN and is potentially useful to predict their clinical course, either together with, or as an alternative to PCT.http://www.springerlink.com/content/0939-555
    • …
    corecore