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1.
JAMA ; 319(13): 1331-1340, Apr. 2018. graf, ilus, tab
Article in English | Sec. Est. Saúde SP, CONASS, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1152246

ABSTRACT

IMPORTANCE The effects of loading doses of statins on clinical outcomes in patients with acute coronary syndrome (ACS) and planned invasive management remain uncertain. OBJECTIVE To determine if periprocedural loading doses of atorvastatin decrease 30-day major adverse cardiovascular events (MACE) in patients with ACS and planned invasive management. DESIGN, SETTING, AND PARTICIPANTS Multicenter, double-blind, placebo-controlled, randomized clinical trial conducted at 53 sites in Brazil among 4191 patients with ACS evaluated with coronary angiography to proceed with a percutaneous coronary intervention (PCI) if anatomically feasible. Enrollment occurred between April 18, 2012, and October 6, 2017. Final follow-up for 30-day outcomes was on November 6, 2017. INTERVENTIONS Patients were randomized to receive 2 loading doses of 80 mg of atorvastatin (n = 2087) or matching placebo (n = 2104) before and 24 hours after a planned PCI. All patients received 40 mg of atorvastatin for 30 days starting 24 hours after the second dose of study medication. MAIN OUTCOMES AND MEASURES The primary outcome was MACE, defined as a composite of all-cause mortality, myocardial infarction, stroke, and unplanned coronary revascularization through 30 days. RESULTS Among the 4191 patients (mean age, 61.8 [SD, 11.5] years; 1085 women [25.9%]) enrolled, 4163 (99.3%) completed 30-day follow-up. A total of 2710 (64.7%) underwent PCI, 333 (8%) underwent coronary artery bypass graft surgery, and 1144 (27.3%) had exclusively medical management. At 30 days, 130 patients in the atorvastatin group (6.2%) and 149 in the placebo group (7.1%) had a MACE (absolute difference, 0.85% [95% CI, −0.70% to 2.41%]; hazard ratio, 0.88; 95% CI, 0.69-1.11; P = .27). No cases of hepatic failure were reported; 3 cases of rhabdomyolysis were reported in the placebo group (0.1%) and 0 in the atorvastatin group. CONCLUSIONS AND RELEVANCE Among patients with ACS and planned invasive management with PCI, periprocedural loading doses of atorvastatin did not reduce the rate of MACE at 30 days. These findings do not support the routine use of loading doses of atorvastatin among unselected patients with ACS and intended invasive management.


Subject(s)
Humans , Female , Coronary Angiography , Acute Coronary Syndrome , Atorvastatin
2.
JAMA ; 319(13): 1331-1340, 2018 04 03.
Article in English | MEDLINE | ID: mdl-29525821

ABSTRACT

Importance: The effects of loading doses of statins on clinical outcomes in patients with acute coronary syndrome (ACS) and planned invasive management remain uncertain. Objective: To determine if periprocedural loading doses of atorvastatin decrease 30-day major adverse cardiovascular events (MACE) in patients with ACS and planned invasive management. Design, Setting, and Participants: Multicenter, double-blind, placebo-controlled, randomized clinical trial conducted at 53 sites in Brazil among 4191 patients with ACS evaluated with coronary angiography to proceed with a percutaneous coronary intervention (PCI) if anatomically feasible. Enrollment occurred between April 18, 2012, and October 6, 2017. Final follow-up for 30-day outcomes was on November 6, 2017. Interventions: Patients were randomized to receive 2 loading doses of 80 mg of atorvastatin (n = 2087) or matching placebo (n = 2104) before and 24 hours after a planned PCI. All patients received 40 mg of atorvastatin for 30 days starting 24 hours after the second dose of study medication. Main Outcomes and Measures: The primary outcome was MACE, defined as a composite of all-cause mortality, myocardial infarction, stroke, and unplanned coronary revascularization through 30 days. Results: Among the 4191 patients (mean age, 61.8 [SD, 11.5] years; 1085 women [25.9%]) enrolled, 4163 (99.3%) completed 30-day follow-up. A total of 2710 (64.7%) underwent PCI, 333 (8%) underwent coronary artery bypass graft surgery, and 1144 (27.3%) had exclusively medical management. At 30 days, 130 patients in the atorvastatin group (6.2%) and 149 in the placebo group (7.1%) had a MACE (absolute difference, 0.85% [95% CI, -0.70% to 2.41%]; hazard ratio, 0.88; 95% CI, 0.69-1.11; P = .27). No cases of hepatic failure were reported; 3 cases of rhabdomyolysis were reported in the placebo group (0.1%) and 0 in the atorvastatin group. Conclusions and Relevance: Among patients with ACS and planned invasive management with PCI, periprocedural loading doses of atorvastatin did not reduce the rate of MACE at 30 days. These findings do not support the routine use of loading doses of atorvastatin among unselected patients with ACS and intended invasive management. Trial Registration: clinicaltrials.gov Identifier: NCT01448642.


Subject(s)
Acute Coronary Syndrome/drug therapy , Atorvastatin/administration & dosage , Cardiovascular Diseases/prevention & control , Hydroxymethylglutaryl-CoA Reductase Inhibitors/administration & dosage , Percutaneous Coronary Intervention , Acute Coronary Syndrome/therapy , Aged , Atorvastatin/adverse effects , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/mortality , Double-Blind Method , Female , Humans , Hydroxymethylglutaryl-CoA Reductase Inhibitors/adverse effects , Male , Middle Aged , Preoperative Care , ST Elevation Myocardial Infarction/drug therapy , ST Elevation Myocardial Infarction/therapy
3.
J Neuroimmunol ; 290: 9-14, 2016 Jan 15.
Article in English | MEDLINE | ID: mdl-26711562

ABSTRACT

We aimed to evaluate the effect of paradoxical sleep deprivation on the cellular migration during inflammation, the peritoneal macrophage phenotype and the infectious stimulus outcomes. A/J mice were inoculated with thioglycollate and exposed to paradoxical sleep deprivation. Sleep-deprived animals presented decreased cell migration compared to controls. Nitric oxide production was reduced in macrophages from sleep-deprived mice compared to controls. Cell surface analysis showed that sleep deprivation reduced F4/80(+)/CD80(low) peritoneal cell population induced by thioglycollate injection. Sleep-deprived mice were not more susceptible to infection than control mice. Our findings challenge the general perception that sleep loss always increases infection susceptibility.


Subject(s)
Cell Movement/immunology , Macrophages, Peritoneal/immunology , Sleep Deprivation/immunology , Animals , Corticosterone/blood , Corticosterone/immunology , Macrophages, Peritoneal/metabolism , Male , Mice , Sleep Deprivation/blood
4.
Clinics (Sao Paulo) ; 67(7): 827-30, 2012 Jul.
Article in English | MEDLINE | ID: mdl-22892930

ABSTRACT

Patients who have suffered burns frequently experience psychological consequences, among which anxiety disorders are prominent. Benzodiazepines are commonly administered to treat these symptoms. The effects of benzodiazepines on healing may not be direct but rather are modulated by alterations of the sleep architecture. This hypothesis is supported by studies that demonstrate the effects of benzodiazepines on the immune system and the inflammatory profile under both normal sleep conditions and during sleep deprivation, particularly rapid eye movement sleep deprivation.


Subject(s)
Anti-Anxiety Agents/adverse effects , Burns/psychology , Midazolam/adverse effects , Wound Healing/drug effects , Animals , Anxiety Disorders/drug therapy , Anxiety Disorders/immunology , Burns/immunology , Humans , Mice , Rats , Sleep Deprivation/drug therapy , Sleep Deprivation/immunology , Stress, Psychological/drug therapy , Stress, Psychological/immunology , Wound Healing/immunology , Wound Healing/physiology
5.
Clinics ; 67(7): 827-830, July 2012. ilus
Article in English | LILACS | ID: lil-645458

ABSTRACT

Patients who have suffered burns frequently experience psychological consequences, among which anxiety disorders are prominent. Benzodiazepines are commonly administered to treat these symptoms. The effects of benzodiazepines on healing may not be direct but rather are modulated by alterations of the sleep architecture. This hypothesis is supported by studies that demonstrate the effects of benzodiazepines on the immune system and the inflammatory profile under both normal sleep conditions and during sleep deprivation, particularly rapid eye movement sleep deprivation.


Subject(s)
Animals , Humans , Mice , Rats , Anti-Anxiety Agents/adverse effects , Burns/psychology , Midazolam/adverse effects , Wound Healing/drug effects , Anxiety Disorders/drug therapy , Anxiety Disorders/immunology , Burns/immunology , Sleep Deprivation/drug therapy , Sleep Deprivation/immunology , Stress, Psychological/drug therapy , Stress, Psychological/immunology , Wound Healing/immunology , Wound Healing/physiology
6.
Toxicol Mech Methods ; 22(8): 577-83, 2012 Oct.
Article in English | MEDLINE | ID: mdl-22694732

ABSTRACT

Skin performs a host of primordial functions that keep the body alive. Morphine is a drug with immunosuppressant properties whose chronic use may lead to increased infection and delayed wound healing. Sleep is a fundamental biological phenomenon that promotes the integrity of several bodily functions. Sleep deprivation adversely affects several systems, particularly the immune system. The aim of this study was to perform an immunohistochemical evaluation on the expression of inducible nitric oxide synthase and cyclooxygenase-2 in skin of sleep-deprived mice and mice chronically treated with morphine. Adult hairless male mice were distributed into the following groups: Control, morphine, sleep-deprived, and morphine + SD. Morphine (10 mg/kg, subcutaneous) was injected every 12 h for 9 days. Morphine induced immunoexpression of cyclooxygenase-2 and nitric oxide synthase. Sleep deprivation did not modulate outcomes induced by morphine. Morphine, not sleep loss, induces cyclooxygenase-2 and nitric oxide synthase immunoexpression in the skin of hairless mice.


Subject(s)
Cyclooxygenase 2/metabolism , Morphine/toxicity , Narcotics/toxicity , Nitric Oxide Synthase Type II/metabolism , Skin/drug effects , Sleep Deprivation/drug therapy , Animals , Biopsy , Disease Models, Animal , Immunohistochemistry/methods , Injections, Subcutaneous , Male , Mice , Mice, Nude , Morphine/administration & dosage , Narcotics/administration & dosage , Skin/enzymology , Sleep Deprivation/physiopathology
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