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The effect of topical application of black seed oil on 7,12-dimethylbenz(a)anthracene (DMBA)-induced skin tumors in BALB/c mice was investigated. Topical application of chemically extracted oil (C.O.) and naturally extracted oil (N.O.) highly prevented the appearance of skin tumors in experimental animals. Skin tumors (papillomas and carcinomas) were initiated by application of 300 mu g DMBA (on days 1,8) followed by applying 0.5 mg croton oil, biweekly until the end of the experiment (25 weeks). The application of N.O. completely prevented the appearance of skin tumors in mice of group 3 versus a tumor incidence of 78.9% in animals of group 1 (carcinogenic control) (cc). Painting the skin of mice with C.O. (group 2) significantly reduced the tumor incidence to 14.2%. Moreover, a significant decrease was observed in number of mice bearing tumors, and number of tumors per mouse in group 2. Multiplicity was also decreased but insignificantly in the same group. The treatment with C.O. and N.O. insignificantly increased the rate of mice survival as compared to that of animals of group 1.  相似文献   
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Purpose

Coronary microvascular dysfunction (CMD) is a common but underdiagnosed cause of chest pain. Literature is scant regarding effective treatments. We explored the effect of ranolazine on coronary flow reserve (CFR) among symptomatic patients with CMD.

Methods

This pilot double-blinded randomized controlled trial included emergency department patients with chest pain and CMD admitted to an observation unit between June 2014 and November 2015. Participants were assessed by cardiac Rb-82 positron emission tomography and computed tomography imaging at baseline and 30 days. CMD was defined as CFR <2 corrected for rate pressure product or <2.5 uncorrected, with no evidence of obstructive or nonobstructive coronary artery disease or calcification. Patients with infarction, hypertensive urgency, heart failure, or prescribed QTc-prolonging drugs were excluded. Participants were assigned to ranolazine or placebo in a 2:1 ratio. Primary outcome was change in CFR at 30 days.

Findings

We enrolled 31 patients (71% female, mean [SD] age 50 [6] years) with CMD (mean [SD] corrected CFR 1.6 [0.3]). Ranolazine improved CFR at 30 days by 17% (P = 0.005) compared with 0% with placebo (P = 0.67). However, there was no significant difference in the primary outcome as measured by mean change in CFR (0.27 ranolazine compared with 0.06 placebo; 95% CI, ?0.08 to 0.62).

Implications

The emergency department offers a unique venue to diagnose CMD with acute symptoms. In an exploratory randomized controlled trial of symptomatic patients with CMD and no coronary artery disease, promising results were seem with ranolazine and CFR improving at 30 days. Large robust clinical trials are needed to verify improvement of CMD in a sex-specific model. ClinicalTrials.gov identifier NCT02052011.  相似文献   
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As part of the 2014 Academic Emergency Medicine (AEM) consensus conference “Gender‐Specific Research in Emergency Care: Investigate, Understand, and Translate How Gender Affects Patient Outcomes,” we assembled a diverse panel of representatives from federal and nonfederal funding agencies to discuss future opportunities for sex‐ and gender‐specific research. The discussion revolved around the mission and priorities of each organization, as well as its interest in promoting sex‐ and gender‐specific research. The panelists were asked to provide specific examples of funding lines generated or planned for as pertinent to emergency care. Training opportunities for future researchers in this area were also discussed.  相似文献   
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Pain is a leading public health problem in the United States, with an annual economic burden of more than $630 billion, and is one of the most common reasons that individuals seek emergency department (ED) care. There is a paucity of data regarding sex differences in the assessment and treatment of acute and chronic pain conditions in the ED. The Academic Emergency Medicine consensus conference convened in Dallas, Texas, in May 2014 to develop a research agenda to address this issue among others related to sex differences in the ED. Prior to the conference, experts and stakeholders from emergency medicine and the pain research field reviewed the current literature and identified eight candidate priority areas. At the conference, these eight areas were reviewed and all eight were ratified using a nominal group technique to build consensus. These priority areas were: 1) gender differences in the pharmacological and nonpharmacological interventions for pain, including differences in opioid tolerance, side effects, or misuse; 2) gender differences in pain severity perceptions, clinically meaningful differences in acute pain, and pain treatment preferences; 3) gender differences in pain outcomes of ED patients across the life span; 4) gender differences in the relationship between acute pain and acute psychological responses; 5) the influence of physician–patient gender differences and characteristics on the assessment and treatment of pain; 6) gender differences in the influence of acute stress and chronic stress on acute pain responses; 7) gender differences in biological mechanisms and molecular pathways mediating acute pain in ED populations; and 8) gender differences in biological mechanisms and molecular pathways mediating chronic pain development after trauma, stress, or acute illness exposure. These areas represent priority areas for future scientific inquiry, and gaining understanding in these will be essential to improving our understanding of sex and gender differences in the assessment and treatment of pain conditions in emergency care settings.  相似文献   
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With the goal of reducing inequalities in patient care, the 2014 Academic Emergency Medicine (AEM) consensus conference, “Gender‐Specific Research in Emergency Care: Investigate, Understand, and Translate How Gender Affects Patient Outcomes,” convened a diverse group of researchers, clinicians, health care providers, patients, and representatives of federal agencies and policy‐makers in Dallas, Texas, in May 2014. The executive and steering committees identified seven clinical domains as key to gender‐specific emergency care: cardiovascular, neurological, trauma/injury, substance abuse, pain, mental health, and diagnostic imaging. The main aims of the conference were to: 1) summarize and consolidate current data related to sex‐ and gender‐specific research for acute care and identify critical gender‐related gaps in knowledge to inform an EM research agenda; 2) create a consensus‐driven research agenda that advances sex‐ and gender‐specific research in the prevention, diagnosis, and management of acute diseases and identify strategies to investigate them; and 3) build a multinational interdisciplinary consortium to disseminate and study the sex and gender medicine of acute conditions. Over a 2‐year period, this collaborative network of stakeholders identified key areas where sex‐ and gender‐specific research is most likely to improve clinical care and ultimately patient outcomes. The iterative consensus process culminated in a daylong conference on May 13, 2014, with a total of 133 registrants, with the majority being between ages 31 and 50 years (57%), females (71%), and whites (79%). Content experts led the consensus‐building workshops at the conference and used the nominal group technique to consolidate consensus recommendations for priority research. In addition, panel sessions addressed funding mechanisms for gender‐specific research as well as gender‐specific regulatory challenges to product development and approval. This special issue of AEM reports the results of the 2014 consensus conference as well as related original research with the goal of bringing high‐quality equitable care to male and female emergency patients.  相似文献   
8.
On May 13, 2014, a 1‐hour panel discussion session titled “Gender‐specific Regulatory Challenges to Product Approval” was held during the Academic Emergency Medicine consensus conference, “Gender‐specific Research in Emergency Medicine: Investigate, Understand, and Translate How Gender Affects Patient Outcomes.” The session sought to bring together leaders in emergency medicine (EM) research, authors, and reviewers in EM research publications, as well as faculty, fellows, residents, and students engaged in research and clinical practice. A panel was convened involving a representative from the Office of Women's Health of the U.S. Food and Drug Administration, two pharmaceutical executives, and a clinical EM researcher. The moderated discussion also involved audience members who contributed significantly to the dialogue. Historical background leading up to the session along with the main themes of the discussion are reproduced in this article. These revolve around sex‐ and gender‐specific research, statistical analysis of sex and gender, clinical practice, financial costs associated with pharmaceutical development, adaptive design, and specific recommendations on the regulatory process as it affects the specialty of EM.  相似文献   
9.
Significant sex and gender differences in both physiology and psychology are readily acknowledged between men and women; however, data are lacking regarding differences in their responses to injury and treatment and in their ultimate recovery and survival. These variations remain particularly poorly defined within the field of cardiovascular resuscitation. A better understanding of the interaction between these important factors may soon allow us to dramatically improve outcomes in disease processes that currently carry a dismal prognosis, such as sudden cardiac arrest. As part of the 2014 Academic Emergency Medicine consensus conference “Gender‐Specific Research in Emergency Medicine: Investigate, Understand, and Translate How Gender Affects Patient Outcomes,” our group sought to identify key research questions and knowledge gaps pertaining to both sex and gender in cardiac resuscitation that could be answered in the near future to inform our understanding of these important issues. We combined a monthly teleconference meeting of interdisciplinary stakeholders from largely academic institutions with a focused interest in cardiovascular outcomes research, an extensive review of the existing literature, and an open breakout session discussion on the recommendations at the consensus conference to establish a prioritization of the knowledge gaps and relevant research questions in this area. We identified six priority research areas: 1) out‐of‐hospital cardiac arrest epidemiology and outcome, 2) customized resuscitation drugs, 3) treatment role for sex steroids, 4) targeted temperature management and hypothermia, 5) withdrawal of care after cardiac arrest, and 6) cardiopulmonary resuscitation training and implementation. We believe that exploring these key topics and identifying relevant questions may directly lead to improved understanding of sex‐ and gender‐specific issues seen in cardiac resuscitation and ultimately improved patient outcomes.  相似文献   
10.
This review describes the sex and gender differences in COVID-19 presentation, treatment, and outcomes. We discuss the differences between the sexes in susceptibility to infection, the role of sex chromosomes on the body's immunologic response and the influence of hormones on the body's response to the virus. Additionally, the sex differences in clinical and laboratory presentation, complications of infection and outcomes, as well as differences in response to treatment and prevention are reviewed.  相似文献   
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