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251.
Background: For more than a decade, a large proportion of research on caffeine use in college students has focused on energy drinks (ED), demonstrating an association between ED consumption and heavy/problem alcohol use. The present study examined the relationship between daily coffee (DC) consumption and varied measures of alcohol use and problems in a sample of college women. Methods: Participants were undergraduate females (N = 360) attending an urban university in 2001–02 and prior to the rise in ED popularity on college campuses. Analyses compared women who reported drinking coffee daily (DC; 16.9%), to women who did not (non-daily coffee [NDC]; 83.1%) on standardized measures of alcohol use and problems. Results: For both past month and year of drinking, DC women generally reported consuming more alcohol and were 2.1–2.6 times more likely to screen at risk for alcohol problems than their NDC counterparts. DC women were also more likely than NDC women to report problems related to drinking (e.g., experiencing blackouts, inability to stop drinking after they had started). Conclusions: Findings support potential benefits of health education and screening that goes beyond EDs, focusing on varied forms of caffeine consumption.  相似文献   
252.
BACKGROUND & AIMS: Nonsteroidal anti-inflammatory drugs (NSAIDs) are strongly associated with gastroduodenal ulceration. How to manage patients with NSAID-associated ulcers is a common clinical dilemma. High-dose famotidine in the healing and maintenance of NSAID-associated gastroduodenal ulceration was therefore evaluated. METHODS: One hundred four patients with rheumatoid or osteoarthritis who had gastroduodenal ulceration received famotidine, 40 mg twice daily. Sixteen patients stopped and 88 continued their NSAID treatment. Ulcer healing was assessed endoscopically at 4 and 12 weeks. Seventy-eight NSAID users with healed ulcers were then randomized to receive 40 mg twice daily famotidine or placebo and underwent endoscopy at 4, 12, and 24 weeks. RESULTS: Cumulative ulcer healing rates at 12 weeks were 89.0% (95% confidence interval [CI], 82.3%-95.7%) for patients who continued NSAID treatment and 100% (95% CI, 82.9%-100.0%) for those who stopped. The subsequent estimated cumulative gastroduodenal ulcer relapse over 6 months for NSAID users who took placebo was 53.5% (95% CI, 36.6%- 70.3%). This was reduced to 26.0% (12.1%-39.9%) in patients taking famotidine (P = 0.011). CONCLUSIONS: High-dose famotidine is effective ulcer healing therapy in patients who stop or continue NSAID treatment and significantly reduced the cumulative incidence of gastroduodenal ulcer recurrence compared with placebo when given as maintenance therapy. (Gastroenterology 1997 Jun;112(6):1817-22)  相似文献   
253.
Plasma interleukin-1 (IL-1) activity is modulated in part through the simultaneous appearance of several inhibitors of IL-1 action, including interleukin-1 receptor antagonist (IL-1ra) and the soluble IL-1 type II receptor (IL-1RII). However, little is known concerning the plasma appearance of these inhibitors in patients following operative trauma or those with sepsis syndrome. In the present report, plasma IL-1beta, IL-1ra, and soluble IL-1RI and IL-1RII concentrations were evaluated in 118 patients with sepsis syndrome or after elective operative trauma. Plasma concentrations of IL-1ra increased significantly following elective operative repair of thoraco-abdominal and abdominal aortic aneurysms, and after bowel resection for inflammatory bowel disease, but did not increase after laparoscopic cholecystectomy. Plasma IL-1ra levels were also elevated in patients with sepsis syndrome. In contrast, soluble IL-1RII levels were only increased in patients after operative repair of thoraco-abdominal aortic aneurysms and in sepsis syndrome, whereas concentrations were unaffected by the other more modest surgical procedures. Plasma IL-1RI concentrations decreased in all postoperative patients in the first 24 hours after surgery. We conclude that both plasma IL-1ra and soluble IL-1RII concentrations often increase in sepsis and following some operative trauma. Less severe operative trauma increases the plasma concentration of only IL- 1ra, whereas both IL-1ra and soluble IL-1RII are increased in patients with sepsis syndrome or following thoraco-abdominal aneurysm repair.  相似文献   
254.
Parker  RI; Gralnick  HR 《Blood》1989,74(6):2016-2021
Platelets contain a pool of endogenous platelet-von Willebrand factor (vWF) that becomes expressed on the platelet surface when platelets are stimulated by a variety of agonists. Maximal platelet-vWF expression occurs in concert with platelet alpha-granule secretion. Aspirin (ASA) is known to impair platelet activation and alpha-granule secretion by irreversible inhibition of platelet cyclo-oxygenase. We studied native and ASA-treated platelets for their ability to mobilize and to express platelet-vWF in response to adenosine diphosphate (ADP) or thrombin. We found that each agonist was effective in promoting increased platelet- vWF surface expression on native and ASA-treated platelets. ASA-treated platelets responded identically to native platelets to low (0.01 U/mL) and high (1.0 U/mL) concentrations of thrombin, while the ADP-induced increase in ASA-treated platelets was only 50% to 60% of that for control platelets. Measurement of secreted platelet-vWF and beta- thromboglobulin indicated that the increase seen with ADP was largely independent of alpha-granule secretion. Using monoclonal antibodies (MoAbs) against the platelet glycoproteins (GP) IIb/IIIa and Ib (MoAbs 10E5 and 6D1, respectively), we demonstrated that the ADP-induced increase in platelet-vWF expression on control platelets primarily involved the binding of secreted platelet-vWF to the platelet GPIIb/IIIa. In contrast, the increase in platelet-vWF that occurred following ADP stimulation of ASA-treated platelets was largely insensitive to GPIIb/IIIa blockade. No effect of GPIb blockade in platelet-vWf expression was noted for either control or ASA-treated platelets. When platelet shape change was prevented by the addition of cytochalasin D, ADP-induced platelet-vWf surface expression on ASA- treated platelets was reduced by more than 80%. Our data indicate that platelets in which the cyclooxygenase pathway is blocked by the action of aspirin can increase surface expression of platelet-vWf as a consequence of platelet shape change. We speculate that this process exposes platelet-vWf bound to GPIIb/IIIa, or possibly GPIb, within the surface connected canalicular system.  相似文献   
255.
Existing strategies for long‐term bovine tuberculosis (bTB) control/eradication campaigns are being reconsidered in many countries because of the development of new testing technologies, increased global trade, continued struggle with wildlife reservoirs of bTB, redistribution of international trading partners/agreements, and emerging financial and animal welfare constraints on herd depopulation. Changes under consideration or newly implemented include additional control measures to limit risks with imported animals, enhanced programs to mitigate wildlife reservoir risks, re‐evaluation of options to manage bTB‐affected herds/regions, modernization of regulatory framework(s) to re‐focus control efforts, and consideration of emerging testing technologies (i.e. improved or new tests) for use in bTB control/eradication programs. Traditional slaughter surveillance and test/removal strategies will likely be augmented by incorporation of new technologies and more targeted control efforts. The present review provides an overview of current and emerging bTB testing strategies/tools and a vision for incorporation of emerging technologies into the current control/eradication programs.  相似文献   
256.

BACKGROUND

After an initial episode of atrial fibrillation (AF), AF may recur and become permanent. AF progression is associated with higher morbidity and mortality. Understanding the risk factors for permanent AF could help identify people who would benefit most from interventions.

OBJECTIVE

To determine whether body mass index (BMI), diabetes, hypertension, and blood pressure levels are associated with permanent AF among people whose initial AF episode terminated.

DESIGN

Population-based inception cohort study.

PARTICIPANTS

Enrollees in Group Health, an integrated health care system, aged 30–84 with newly diagnosed AF in 2001–2004, whose initial AF terminated within 6 months and who had at least 6 months of subsequent follow-up (N?=?1,385).

MAIN MEASURES

Clinical characteristics were determined from medical records. Permanent AF was determined from medical records and ECG and administrative databases. Permanent AF was defined as AF present on two separate occasions 6–36 months apart, without any documented sinus rhythm between the two occasions. Cox proportional hazards models were used to estimate adjusted hazard ratios (HRs).

KEY RESULTS

Five-year cumulative incidence of permanent AF was 24 %. Compared with normal BMI (18.5–24.9 kg/m2), BMI levels of 25.0–29.9 (overweight), 30.0–34.9 (obese 1), 35.0–39.9 (obese 2), and ≥ 40.0 kg/m2 (obese 3) were associated with HRs of permanent AF of 1.26 (95 % CI: 0.92, 1.72); 1.35 (0.96, 1.91); 1.50 (0.97, 2.33); and 1.79 (1.13, 2.84), adjusted for age, sex, diabetes, hypertension, blood pressure, coronary heart disease, valvular heart disease, heart failure, and prior stroke. Diabetes, hypertension, and blood pressure were not associated with permanent AF.

CONCLUSIONS

For people whose initial AF episode terminates, benefits of having lower BMI may include a lower risk of permanent AF. Risk of permanent AF was similar for people with and without diabetes or hypertension and across blood pressure levels.  相似文献   
257.
Individuals with systemic lupus erythematosus (SLE) have a striking increase in premature atherosclerosis of unclear etiology. Accelerated endothelial cell apoptosis occurs in SLE and correlates with endothelial dysfunction. Endothelial progenitor cells (EPCs) and myelomonocytic circulating angiogenic cells (CACs) are crucial in blood vessel repair after vascular damage, and decreased levels or abnormal function of EPCs/CACs are established atherosclerosis risk factors. We investigated if vascular repair is impaired in SLE. We report that SLE patients display abnormal phenotype and function of EPCs/CACs. These abnormalities are characterized by significant decreases in the number of circulating EPCs (310 +/- 50 EPCs/mL of blood in SLE versus 639 +/- 102 in controls) and significant impairments in the capacity of EPCs/CACs to differentiate into mature ECs and synthesize adequate levels of the proangiogenic molecules vascular endothelial growth factor (VEGF) and hepatic growth factor (HGF). These abnormalities are triggered by interferon-alpha (IFN-alpha), which induces EPC and CAC apoptosis and skews myeloid cells toward nonangiogenic phenotypes. Lupus EPCs/CACs have increased IFN-alpha expression and their supernatants promote higher induction of IFN-inducible genes. Importantly, neutralization of IFN pathways restores a normal EPC/CAC phenotype in lupus. SLE is characterized by an imbalance between endothelial cell damage and repair triggered by type I IFNs, which might promote accelerated atherosclerosis.  相似文献   
258.
259.

Background

Current clinical guidelines recognize that the use of more than one agent is necessary to achieve target BP in the majority of patients. The ASCOT-BPLA trial demonstrated that the free combination of amlodipine and perindopril effectively controlled BP and was better than a β-adrenoceptor antagonist (β-blocker)/diuretic combination in reducing total mortality and cardiovascular outcomes.

Objective

To evaluate the efficacy and tolerability of a fixed combination of perindopril and amlodipine in the clinical setting.

Study design

The STRONG (SafeTy & efficacy analysis of coveRsyl amlodipine in uncOntrolled and Newly diaGnosed hypertension) study was a prospective, observational, multicenter trial.

Setting

This was a naturalistic, real-world, clinic-based, outpatient study involving 336 general practitioners/ primary care physicians in 65 cities in India.

Patients

Adults aged 40–70 years with newly diagnosed/untreated stage 2 hypertension (BP ≥ 160/100 mmHg), hypertension uncontrolled with monotherapy (BP > 140/90 mmHg), or hypertension inadequately managed with another combination therapy.

Intervention

Fixed combination perindopril 4 mg/amlodipine 5 mg once daily for 60 days.

Main outcomes measure

The primary outcomes were the mean change in BP from baseline and the proportion of patients achieving adequate BP control (≤ 140/90 mmHg, or ≤ 130/80 mmHg in patients with diabetes mellitus) in the intent-to-treat (ITT) population. Secondary analyses included incidence of adverse events (ITT) and treatment adherence rate (completers).

Results

In total, 1250 patients comprised the ITT population: 32.6% with newly diagnosed hypertension; 40.5% with hypertension uncontrolled with monotherapy; and 26.9% with hypertension inadequately managed with another combination therapy. Mean SBP/DBP decreased significantly from baseline (167.4±15.2/101.4±9.1 mmHg) over 60 days (?41.9 ± 34.8/?23.2 ± 21.8 mmHg; p<0.0001). Target BP was achieved in 66.1% of patients in the total population, 68.3% of untreated patients, 68.4% of patients uncontrolled with monotherapy, and 59.9% of patients inadequately managed with combination therapy. In 161 patients with SBP >180 mmHg at baseline (newly diagnosed: n = 50; uncontrolled on monotherapy: n = 53; inadequately managed on combination therapy: n = 58), BP was reduced by 63.2 ± 32.5/29.0 ± 21.9 mmHg (p<0.0001) at day 60. The fixed combination was safe and well tolerated. All 1175 patients completing the 60-day study (94%) adhered to their treatment regimen.

Conclusion

Fixed combination perindopril/amlodipine was found to be an effective and well tolerated antihypertensive treatment, with an excellent rate of treatment adherence in the clinical setting. Fixed combination perindopril/amlodipine is expected to be useful in the management of hypertension in primary healthcare, with a positive impact on treatment adherence.  相似文献   
260.
目的:比较经腹膜后精索静脉高位结扎术与腹腔镜下改良Palomo术两种方法治疗精索静脉曲张的效果。方法:收集我院1994年1月~2008年11月行手术治疗并获得随访的Ⅱ度及以上的精索静脉曲张患者305例,根据手术分为两组:A组263例行经腹膜后精索静脉高位结扎术;B组42例行腹腔镜下改良palomo术。对比观察两组术后阴囊水肿、辜丸萎缩、复发等,近、远期并发症及精液质量改善和生育情况。结果:术后阴囊水肿发生率B组为16.7%,A组为2.3%,两组比较差异有统计学意义(P〈0.05);术后3个月睾丸萎缩发生率B组为9.5%,A组为1.1%,两组比较差异有统计学意义(P〈0.05);≤30岁患者A组术后6个月精液质量提高率为82%,高于B组术后6个月的74.2%(P〈0.05);两组≤30岁患者术后1~2年内配偶自然怀孕率为69.5%、55.6%,A组高于B组(P〈0.05)。结论:经腹膜后精索静脉高位结扎术术式简单易掌握且术后阴囊水肿和睾丸萎缩发生率低,术后精液质量提高率和术后1~2年内配偶自然怀孕率高,值得广泛推广。  相似文献   
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