首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   112篇
  免费   6篇
儿科学   4篇
妇产科学   1篇
基础医学   13篇
口腔科学   8篇
临床医学   16篇
内科学   36篇
神经病学   8篇
外科学   6篇
综合类   1篇
预防医学   9篇
眼科学   2篇
药学   2篇
肿瘤学   12篇
  2024年   1篇
  2021年   4篇
  2020年   3篇
  2019年   3篇
  2018年   6篇
  2017年   3篇
  2016年   5篇
  2015年   3篇
  2014年   5篇
  2013年   7篇
  2012年   11篇
  2011年   16篇
  2010年   4篇
  2009年   4篇
  2008年   3篇
  2007年   3篇
  2005年   2篇
  2004年   3篇
  2003年   2篇
  2002年   5篇
  2001年   2篇
  2000年   3篇
  1999年   2篇
  1992年   1篇
  1991年   2篇
  1990年   1篇
  1989年   4篇
  1986年   1篇
  1985年   1篇
  1979年   2篇
  1977年   1篇
  1968年   3篇
  1967年   1篇
  1963年   1篇
排序方式: 共有118条查询结果,搜索用时 15 毫秒
91.
BACKGROUND: Women who receive mammograms may fail to regularly return for repeat mammography. Many mammography facilities send annual patient reminders, but there are no large studies of their impact on overall mammography return rates, or by patient population subgroups. METHODS: Medicare claims data were used to identify New York women with claims for mammograms during a baseline and an 18-month follow-up period (1999-2000). Receipt of a second mammogram was examined in relation to whether the facility sends annual reminders, while controlling for other patient factors. RESULTS: Of 97,506 women studied, 76% attended facilities that send annual reminders. Of these women, 74% received a second mammogram within 18 months compared to 67% for other women. The impact of reminders was significant in all subgroups, but was less for women who were younger, minority, in Medicaid, in New York City or who received a diagnostic mammogram. In multivariate analysis, the adjusted odds ratio for return within 18 months if the facility uses reminders was 1.42 (95% CI 1.37-1.47). CONCLUSIONS: Annual patient reminders from mammography facilities are effective in increasing regular repeat mammography in Medicare women, although their impact is smaller in some groups. Facilities that do not currently send reminders should be encouraged to do so.  相似文献   
92.
Gez E  Rubinov R  Gaitini D  Meretyk S  Best LA  Native O  Stein A  Erlich N  Beny A  Zidan J  Haim N  Kuten A 《Cancer》2002,95(8):1644-1649
BACKGROUND: The current study evaluated the efficacy and toxicity of interleukin-2 (IL-2), interferon-alpha (IFN-alpha), 5-fluorouracil (5-FU), and vinblastine (VBL) in the treatment of metastatic renal cell carcinoma (MRCC). METHODS: Sixty-two MRCC patients, median age 63 years, received immunochemotherapy. Eastern Cooperative Oncology Group performance status was 1 for 45 patients and 2 for 17 patients. Fifty-four patients underwent nephrectomy prior to treatment. Sites of disease were lungs, lymph nodes, bone, kidney, and liver. Treatment consisted of IL-2 10 MIU/m(2) subcutaneous (SC), three times per week, Weeks 1-4; IFN-alpha 6 MIU/m(2) SC, once per week, Weeks 1-4 and 9 MIU/m(2), three times per week, Weeks 5-7; 5-FU 600 mg/m(2) and VBL 6 mg/m(2), intravenous bolus, Day 1 of Weeks 5 and 7. RESULTS: In a median followup of 34 months, 62 patients were evaluated for tumor response. Four patients achieved complete response for 26+, 34+, 51+, and 56+ months, respectively; 14 patients achieved partial response for a median of 14 months; and 20 patients achieved stable disease for a median of 9 months. Seven patients (5 partial response, 2 stable disease) underwent complete resection of residual tumor. Five patients remained alive with no evidence of disease for 27, 32, 36, 42, and 48 months, respectively. Nine patients achieved long-term complete response for a median of 36 months. Three-year survival rate for the entire group and for 11 complete responders was 88%. Common side effects were flu-like symptoms, nausea, headache, and depression. Four patients were excluded because of treatment intolerance, and one patient died after nephrectomy. CONCLUSIONS: Immunochemotherapy is effective and well-tolerated by patients with MRCC. Surgical intervention for resection of residual disease is justified.  相似文献   
93.
94.
Increased nuclear factor kappaB (NF-kappaB) activity is associated with increased tumor cell survival in multiple myeloma. The function of NF-kappaB is inhibited through binding to its inhibitor, IkappaB. Release of activated NF-kappaB follows proteasome-mediated degradation of IkappaB resulting from phosphorylation of the inhibitor and, finally, conjugation with ubiquitin. We report that myeloma cells have enhanced IkappaBalpha phosphorylation and increased NF-kappaB activity compared with normal hematopoietic cells. The proteasome inhibitor PS-341 blocked nuclear translocation of NF-kappaB, blocked NF-kappaB DNA binding, and demonstrated consistent antitumor activity against chemoresistant and chemosensitive myeloma cells. The sensitivity of chemoresistant myeloma cells to chemotherapeutic agents was markedly increased (100,000-1,000,000-fold) when combined with a noncytotoxic dose of PS-341 without affecting normal hematopoietic cells. Similar effects were observed using a dominant negative super-repressor for IkappaBalpha. Thus, these results suggest that inhibition of NF-kappaB with PS-341 may overcome chemoresistance and allow doses of chemotherapeutic agents to be markedly reduced with antitumor effects without significant toxicity.  相似文献   
95.

Objective

To report the experience of a tertiary care orbital service in treating severe active thyroid related orbitopathy with methotrexate (MTX) managed by the Ophthalmologist.

Design

Retrospective consecutive case series.

Participants

Nineteen consecutive patients (5 males and 14 females) with severe active thyroid related orbitopathy.

Methods

Severe active thyroid orbitopathy patients with partial or no response to intravenous glucocorticoids were treated with MTX and observed for inflammatory scale reduction and treatment complications.

Results

Nineteen consecutive patients (5 males and 14 females) with severe active thyroid related orbitopathy were evaluated. Mean follow-up time was 1206 days (standard deviation (SD) 576). Months passed from beginning of TRO symptoms to initiation of MTX therapy showed a mean of 12 (SD 9). After the initiation of MTX 91% of eyes demonstrated a clinically significant improvement to a VISA inflammatory scale of <3 within a mean of 189 days (SD 119); A subset of patients (29%) demonstrated a rapid response, reaching a VISA inflammatory score of <3 within 90 days. One patient (5%) discontinued the medication secondary to an adverse event (elevated liver enzymes) which normalized after discontinuation of MTX. During the follow up period 12 patients (63%) have ended their MTX treatment due to TRO inactivity; One patient (8%) developed a recurrence of inflammation after discontinuing MTX which resolved with the re-initiation of MTX treatment. Adjunctive treatments including glucocorticoids and/or external beam radiotherapy were administered to 21% of patients.

Conclusion

Our experience suggests that methotrexate managed by an Ophthalmologist is a safe and effective treatment for severe active thyroid related orbitopathy.  相似文献   
96.
97.
98.
99.
Depending on the community-acquired pneumonia (CAP) pathogen, host factors, and immune status, CAPs resolve on chest x-rays at different rates. CAPs that resolve more slowly than expected, or not at all, are termed “slowly or non-resolving CAPs.” In contrast, recurrent CAPs may be due to host defense defects (eg, multiple myelomas) or post-obstructive bronchogenic carcinomas. There are a variety of noninfectious disorders that may mimic CAPs on chest x-ray: alveolar hemorrhage, pulmonary drug reactions, radiation pneumonitis, Wegener’s granulomatosis, bronchiolitis obliterans organizing pneumonia, bronchogenic carcinomas, and lymphomas. Noninfectious mimics of recurrent CAPs include congestive heart failure, pulmonary emboli, infarctions, sarcoidosis, and systemic lupus erythematosus pneumonitis. We present the case of a middle-aged man who presented with recurrent right middle lobe and right lower lobe CAPs. Diagnostic bronchoscopy showed no bronchial obstruction, but open lung biopsy showed bronchoalveolar carcinoma (well-differentiated adenocarcinoma). Bronchoalveolar carcinomas presenting as post-obstructive or recurrent CAPs are rare because the spread is along tissue planes and not endobronchially. The case described demonstrates a rare cause of bronchogenic carcinoma mimicking recurrent CAP.  相似文献   
100.

Background:

An experimental study showed that nebivolol is an effective agent in contrast‐induced nephropathy (CIN) prophylaxis.

Hypothesis:

We hypothesized that prophylactic nebivolol use had protective effects on renal function in human beings subjected to iodinated contrast agent since it has vasodilatory effect and antioxidant properties.

Methods:

The present study enrolled 120 patients scheduled for coronary angiography and ventriculography. All patients were hydrated with intravenous isotonic saline. The patients in group I received 600 mg N‐acetylcysteine every 12 hours for 4 days. The patients in group II received 5 mg nebivolol every 24 hours for 4 days. The patients in group III were only hydrated. The primary endpoint was the occurrence of CIN. The secondary endpoint was the change in serum creatinine (Cr) levels at 2 days and 5 days after the contrast exposure.

Results:

Nine (22.5%) patients in group I developed CIN, as did 8 patients (20.0%) in group II and 11 patients (27.5%) in group III (P = 0.72). Changes in mean Cr level from baseline to day 2 were not statistically significant in all groups. However, we detected a statistically significant increase in mean Cr levels at day 5 compared with baseline levels in group I and group III (from 1.42 ± 0.13 to 1.52 ± 0.26, p2 = 0.02; and from 1.43 ± 0.14 to 1.55 ± 0.30, p2 = 0.01, respectively). Although an increase was detected in mean Cr level from baseline to the 5‐day Cr level in group II, this did not reach statistical significance (from 1.40 ± 0.12 to 1.48 ± 0.23, P = 0.06).

Conclusions:

Pretreatment with nebivolol is protective against nephrotoxic effects of contrast media. © 2012 Wiley Periodicals, Inc. The authors have no funding, financial relationships, or conflicts of interest to disclose.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号