Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 99
Filtrar
1.
N Engl J Med ; 386(9): 815-826, 2022 03 03.
Artigo em Inglês | MEDLINE | ID: mdl-35041780

RESUMO

BACKGROUND: Whether the use of balanced multielectrolyte solution (BMES) in preference to 0.9% sodium chloride solution (saline) in critically ill patients reduces the risk of acute kidney injury or death is uncertain. METHODS: In a double-blind, randomized, controlled trial, we assigned critically ill patients to receive BMES (Plasma-Lyte 148) or saline as fluid therapy in the intensive care unit (ICU) for 90 days. The primary outcome was death from any cause within 90 days after randomization. Secondary outcomes were receipt of new renal-replacement therapy and the maximum increase in the creatinine level during ICU stay. RESULTS: A total of 5037 patients were recruited from 53 ICUs in Australia and New Zealand - 2515 patients were assigned to the BMES group and 2522 to the saline group. Death within 90 days after randomization occurred in 530 of 2433 patients (21.8%) in the BMES group and in 530 of 2413 patients (22.0%) in the saline group, for a difference of -0.15 percentage points (95% confidence interval [CI], -3.60 to 3.30; P = 0.90). New renal-replacement therapy was initiated in 306 of 2403 patients (12.7%) in the BMES group and in 310 of 2394 patients (12.9%) in the saline group, for a difference of -0.20 percentage points (95% CI, -2.96 to 2.56). The mean (±SD) maximum increase in serum creatinine level was 0.41±1.06 mg per deciliter (36.6±94.0 µmol per liter) in the BMES group and 0.41±1.02 mg per deciliter (36.1±90.0 µmol per liter) in the saline group, for a difference of 0.01 mg per deciliter (95% CI, -0.05 to 0.06) (0.5 µmol per liter [95% CI, -4.7 to 5.7]). The number of adverse and serious adverse events did not differ meaningfully between the groups. CONCLUSIONS: We found no evidence that the risk of death or acute kidney injury among critically ill adults in the ICU was lower with the use of BMES than with saline. (Funded by the National Health and Medical Research Council of Australia and the Health Research Council of New Zealand; PLUS ClinicalTrials.gov number, NCT02721654.).


Assuntos
Injúria Renal Aguda/prevenção & controle , Estado Terminal/terapia , Solução Salina/uso terapêutico , Injúria Renal Aguda/etiologia , Adulto , Idoso , Cuidados Críticos/métodos , Estado Terminal/mortalidade , Método Duplo-Cego , Feminino , Hidratação , Gluconatos/efeitos adversos , Gluconatos/uso terapêutico , Humanos , Unidades de Terapia Intensiva , Cloreto de Magnésio/efeitos adversos , Cloreto de Magnésio/uso terapêutico , Masculino , Pessoa de Meia-Idade , Cloreto de Potássio/efeitos adversos , Cloreto de Potássio/uso terapêutico , Solução Salina/efeitos adversos , Acetato de Sódio/efeitos adversos , Acetato de Sódio/uso terapêutico , Cloreto de Sódio/efeitos adversos , Cloreto de Sódio/uso terapêutico , Resultado do Tratamento
2.
BMC Cancer ; 21(1): 510, 2021 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-33957901

RESUMO

BACKGROUND: Disulfiram and metals inactivate key oncoproteins resulting in anti-neoplastic activity. The goal of this study was to determine the maximum tolerated dose of copper when administered with disulfiram in patients with advanced solid tumors and liver involvement. METHODS: Disulfiram 250 mg was administered daily in 28-day cycles. Four doses of copper gluconate were tested (2, 4, 6, and 8 mg of elemental copper) in a standard 3 + 3 dose escalation design. Patients were evaluated for dose limiting toxicities and response. Protein S-glutathionylation was evaluated as a pharmacodynamic marker. RESULTS: Twenty-one patients were enrolled and 16 patients were evaluable for dose limiting toxicities. Among the 21 patients, there was a median of 4 lines of prior chemotherapy. Five Grade 3 toxicities were observed (anorexia, elevated aspartate aminotransferase or AST, elevated alkaline phosphatase, fever, and fatigue). Response data was available for 15 patients. Four patients had stable disease with the longest duration of disease control being 116 days. The median duration of treatment for evaluable patients was 55 days (range 28-124). Reasons for discontinuation included functional decline, disease progression, and disease-associated death. Increased S-glutathionylation of serum proteins was observed with treatment. CONCLUSION: Disulfiram 250 mg daily with copper gluconate (8 mg of elemental copper) was well-tolerated in patients with solid tumors involving the liver and was not associated with dose limiting toxicities. While temporary disease stabilization was noted in some patients, no objective responses were observed. Treatment was associated with an increase in S-glutathionylation suggesting that this combination could exert a suppressive effect on cellular growth and protein function. TRIAL REGISTRATION: NCT00742911 , first posted 28/08/2008.


Assuntos
Dissulfiram/administração & dosagem , Gluconatos/administração & dosagem , Glutationa/metabolismo , Neoplasias Hepáticas/secundário , Neoplasias/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Dissulfiram/efeitos adversos , Relação Dose-Resposta a Droga , Feminino , Gluconatos/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/metabolismo
3.
PLoS One ; 16(5): e0251718, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34010324

RESUMO

OBJECTIVES: Saline and Plasma-Lyte have different physiochemical contents; consequently, they may differently affect patients' renal function. We compared the effects of fluid therapy with 0.9% saline and with Plasma-Lyte 148 on renal function as assessed by creatinine concentration among patients undergoing major surgery. METHODS: We conducted a prospective, double-blinded cluster crossover trial comparing the effects of the two fluids on major surgery patients. The primary aim was to establish the pilot feasibility, safety and preliminary efficacy evidence base for a large interventional trial to establish whether saline or Plasma-Lyte is the preferred crystalloid fluid for managing major surgery patients. The primary efficacy outcome was the proportion of patients with changes in renal function as assessed by creatinine concentration during their index hospital admission. We used changes in creatinine to define acute kidney injury (AKI) according to the RIFLE criteria. RESULTS: The study was feasible with 100% patient and clinician acceptance. There were no deviations from the trial protocol. After screening, we allocated 602 patients to saline and 458 to Plasma-Lyte. The median (IQR) volume of intraoperative fluid received was 2000 mL (1000:2000) in both groups. Forty-nine saline patients (8.1%) and 49 Plasma-Lyte patients (10.7%) developed a postoperative AKI (adjusted incidence rate ratio [aIRR]: 1.34; 95% CI: 0.93-1.95; p = 0.120). No differences were observed in the development of postoperative complications (aIRR: 0.98; 95% CI: 0.89-1.08) or the severity of the worst complication (aIRR: 1.00; 95% CI: 0.78-1.30). The median (IQR) length of hospital stay was six days (3:11) for the saline group and five days (3:10) for the Plasma-Lyte group (aIRR: 0.85; 95% CI: 0.73-0.98). There were no serious adverse events relating to the trial fluids, nor were there fluid crossover or contamination events. CONCLUSIONS: The study design was feasible to support a future follow-up larger clinical trial. Patients treated with saline did not demonstrate an increased incidence of postoperative AKI (defined as changes in creatinine) compared to those treated with Plasma-Lyte. Our findings imply that clinicians can reasonably use either solution intraoperatively for adult patients undergoing major surgery. TRIAL REGISTRATION: Registry: Australian New Zealand Clinical Trials Registry; ACTRN12613001042730; URL: https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=364988.


Assuntos
Creatinina/sangue , Rim/metabolismo , Complicações Pós-Operatórias/sangue , Solução Salina/administração & dosagem , Procedimentos Cirúrgicos Operatórios/efeitos adversos , Injúria Renal Aguda/sangue , Injúria Renal Aguda/etiologia , Injúria Renal Aguda/prevenção & controle , Idoso , Austrália , Estudos Cross-Over , Método Duplo-Cego , Feminino , Gluconatos/administração & dosagem , Gluconatos/efeitos adversos , Humanos , Cloreto de Magnésio/administração & dosagem , Cloreto de Magnésio/efeitos adversos , Masculino , Pessoa de Meia-Idade , Cloreto de Potássio/administração & dosagem , Cloreto de Potássio/efeitos adversos , Estudos Prospectivos , Solução Salina/efeitos adversos , Acetato de Sódio/administração & dosagem , Acetato de Sódio/efeitos adversos , Cloreto de Sódio/administração & dosagem , Cloreto de Sódio/efeitos adversos
4.
Eur Rev Med Pharmacol Sci ; 24(14): 7776-7783, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32744704

RESUMO

OBJECTIVE: Iron deficiency anemia (IDA) in patients with heart disease is correlated with decreased exercise capacity and poor health-related quality of life, and predicts worse cardiovascular outcomes, especially for elderly patients. IDA can worsen cardiac function that can be monitored with Heart Rate Variability (HRV) analysis, providing important information about cardiac health. In a recent study we explored the effect and the tolerability of the administration of Ferric Sodium EDTA in combination with vitamin C, folic acid, copper gluconate, zinc gluconate and selenomethionine (Ferachel Forte®) in "frailty" patients with secondary anemia and low kidney failure, by analysing the HRV frequency domain. The aim of the present study is the further confirmation of the safety of the already evaluated intervention, by analysing non-linear domain of HRV. PATIENTS AND METHODS: In this pilot study we enrolled 52 "frailty" elderly patients, with a recent diagnosis of secondary anemia due to iron deficiency, with Class II New York Heart Association (NYHA) hypertensive heart disease, low kidney failure, and atherosclerosis. The patients were divided in 2 groups: Group A (N=23 patients) received oral administration of Ferric Sodium EDTA in combination with vitamin C, folic acid, copper gluconate, zinc gluconate and selenomethionine (Ferachel Forte®) 2 tabs/day, containing 60 mg of Fe3+, for 24 days; Group B (N=29 patients) received intravenous administration of ferrous gluconate 63 mg/day added to saline solution, while they were hospitalized (15±5 days). We evaluated laboratory values of hemoglobin (Hb) and sideremia levels. Furthermore, we measured ECG signals before and after treatment, using non-linear analysis techniques. RESULTS: Both intravenous and oral treatments evaluated in this study, were effective and safe about the cardiovascular risk in "frailty" elderly patients, as resulted from non-linear HRV analysis. Efficacy results showed that hemoglobin and sideremia levels after treatments are significantly increased. The HRV non-linear analysis showed that all parameters evaluated, except for the SD1 values in the Group A, were not affected by treatments, confirming the absence of cardiovascular risk of the therapy. CONCLUSIONS: Non-linear HRV evaluation confirmed that oral administration of Ferric Sodium EDTA, in combination with vitamin C, folic acid, copper gluconate, zinc gluconate and selenomethionine (Ferachel forte®) did not impact the cardiovascular risk, without causing adverse events typically reported with other iron supplementation therapies, both oral and intravenous.


Assuntos
Anemia Ferropriva/tratamento farmacológico , Ácido Ascórbico/uso terapêutico , Compostos Férricos/uso terapêutico , Ácido Fólico/uso terapêutico , Fragilidade/complicações , Gluconatos/uso terapêutico , Cardiopatias/complicações , Frequência Cardíaca/efeitos dos fármacos , Quelantes de Ferro/uso terapêutico , Selenometionina/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Anemia Ferropriva/sangue , Anemia Ferropriva/complicações , Anemia Ferropriva/diagnóstico , Ácido Ascórbico/efeitos adversos , Combinação de Medicamentos , Ácido Edético/efeitos adversos , Ácido Edético/uso terapêutico , Feminino , Compostos Férricos/efeitos adversos , Ácido Fólico/efeitos adversos , Idoso Fragilizado , Fragilidade/diagnóstico , Fragilidade/fisiopatologia , Gluconatos/efeitos adversos , Fatores de Risco de Doenças Cardíacas , Cardiopatias/diagnóstico , Cardiopatias/fisiopatologia , Humanos , Quelantes de Ferro/efeitos adversos , Masculino , Projetos Piloto , Insuficiência Renal/complicações , Insuficiência Renal/diagnóstico , Insuficiência Renal/fisiopatologia , Medição de Risco , Selenometionina/efeitos adversos , Fatores de Tempo , Resultado do Tratamento
5.
Nutr Metab Cardiovasc Dis ; 30(8): 1260-1271, 2020 07 24.
Artigo em Inglês | MEDLINE | ID: mdl-32451277

RESUMO

BACKGROUND AND AIM: Findings on the effects of zinc supplementation on the lipid profile in patients with type 2 diabetes mellitus (T2DM) are conflicting. The current comprehensive systematic review and meta-analysis aimed to summarize available evidence in this regard. METHODS AND RESULTS: After a systematic search in the online databases, we included the randomized controlled trials (RCTs) investigating the effect of zinc supplementation on lipid profile [total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglyceride (TG)] in patients with T2DM. Altogether, 9 studies with a total sample size of 424 patients with T2DM were included in the analysis. Combining 9 effect sizes from 9 RCTs, we found a significant lowering effect of zinc supplementation on serum levels of TG (weighted mean difference (WMD): -17.08, 95% CI: -30.59, -3.58 mg/dL, P = 0.01) and TC (WMD: -26.16, 95% CI: -49.69, -2.62 mg/dL, P = 0.02). Although the overall effect of zinc supplementation on LDL-C levels was not significant, a beneficial effect was seen in studies that administered <100 mg/d zinc. Based on the non-linear dose-response analysis, a greater reduction in serum levels of TC and LDL-C following zinc supplementation was seen at <12 weeks' duration of intervention. Unlike the overall effect size, we found a significant increasing effect of zinc supplementation on serum HDL-C concentrations in most subgroups of RCTs according to the subgroup analyses. CONCLUSION: We found that zinc supplementation may beneficially influence lipid profile in patients with T2DM.


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Suplementos Nutricionais , Dislipidemias/tratamento farmacológico , Gluconatos/uso terapêutico , Lipídeos/sangue , Sulfato de Zinco/uso terapêutico , Adulto , Idoso , Biomarcadores/sangue , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiologia , Suplementos Nutricionais/efeitos adversos , Dislipidemias/sangue , Dislipidemias/diagnóstico , Dislipidemias/epidemiologia , Feminino , Gluconatos/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento , Sulfato de Zinco/efeitos adversos
6.
Blood Coagul Fibrinolysis ; 29(5): 446-450, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29846277

RESUMO

: The current study aimed to measure the effects of Plasma-Lyte 148 solution on the blood coagulation profile according to the hemodilution level using rotational thromboelastometry (ROTEM) tests. Venous blood was collected from 12 healthy volunteers and divided into four specimen bottles, which were diluted at different levels with Plasma-Lyte 148 (0, 20, 40, and 60%). Following this, ROTEM tests were performed on the study samples. We found that as the hemodilution level increased, the ROTEM values showed a hypocoagulable pattern. The change rate of the maximum clot firmness (MCF) of INTEM was greater in the 40 (P = 0.015) and 60% (P < 0.001) dilutions than it was in the 20% dilution. Greater lengthening of the clot formation time of EXTEM was observed in the 60% dilution than it was in the 20% dilution (P < 0.001). The alpha-angle of EXTEM showed a greater decrease in the 60% dilution than it did in the 20% dilution (P < 0.001). A larger change rate of the MCF of EXTEM was observed in the 40 (P = 0.003) and 60% (P < 0.001) dilutions than it was in the 20% dilution. A greater decrease in the MCF of FIBTEM was identified in the 40 (P = 0.009) and 60% (P < 0.001) dilutions than in the 20% dilution. All coagulation pathways exhibited hypocoagulable patterns as the hemodilution level increased. However, most of the mean values of ROTEM parameters were within the normal reference range, except for those of the 60% dilution.


Assuntos
Testes de Coagulação Sanguínea/métodos , Coagulação Sanguínea/efeitos dos fármacos , Feminino , Gluconatos/efeitos adversos , Humanos , Cloreto de Magnésio/efeitos adversos , Masculino , Cloreto de Potássio/efeitos adversos , Acetato de Sódio/efeitos adversos , Cloreto de Sódio/efeitos adversos , Tromboelastografia , Voluntários
7.
Dermatol Ther ; 31(1)2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29193602

RESUMO

Acne vulgaris is a chronic disease of the pilosebaceous units presenting as inflammatory or noninflammatory lesions in individuals of all ages. The current standard of treatment includes topical formulations in the forms of washes, gels, lotions, and creams such as antibiotics, antibacterial agents, retinoids, and comedolytics. Additionally, systemic treatments are available for more severe or resistant forms of acne. Nevertheless, these treatments have shown to induce a wide array of adverse effects, including dryness, peeling, erythema, and even fetal defects and embolic events. Zinc is a promising alternative to other acne treatments owing to its low cost, efficacy, and lack of systemic side effects. In this literature review, we evaluate the effectiveness and side-effect profiles of various formulations of zinc used to treat acne.


Assuntos
Acne Vulgar/tratamento farmacológico , Fármacos Dermatológicos/administração & dosagem , Gluconatos/administração & dosagem , Pele/efeitos dos fármacos , Acetato de Zinco/administração & dosagem , Sulfato de Zinco/administração & dosagem , Acne Vulgar/diagnóstico , Administração Cutânea , Administração Oral , Fármacos Dermatológicos/efeitos adversos , Combinação de Medicamentos , Feminino , Gluconatos/efeitos adversos , Humanos , Masculino , Pele/patologia , Resultado do Tratamento , Acetato de Zinco/efeitos adversos , Óxido de Zinco/administração & dosagem , Sulfato de Zinco/efeitos adversos
11.
JAMA ; 314(19): 2062-8, 2015 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-26575062

RESUMO

IMPORTANCE: All intravenous (IV) iron products are associated with anaphylaxis, but the comparative safety of each product has not been well established. OBJECTIVE: To compare the risk of anaphylaxis among marketed IV iron products. DESIGN, SETTING, AND PARTICIPANTS: Retrospective new user cohort study of IV iron recipients (n = 688,183) enrolled in the US fee-for-service Medicare program from January 2003 to December 2013. Analyses involving ferumoxytol were limited to the period January 2010 to December 2013. EXPOSURES: Administrations of IV iron dextran, gluconate, sucrose, or ferumoxytol as reported in outpatient Medicare claims data. MAIN OUTCOMES AND MEASURES: Anaphylaxis was identified using a prespecified and validated algorithm defined with standard diagnosis and procedure codes and applied to both inpatient and outpatient Medicare claims. The absolute and relative risks of anaphylaxis were estimated, adjusting for imbalances among treatment groups. RESULTS: A total of 274 anaphylaxis cases were identified at first exposure, with an additional 170 incident anaphylaxis cases identified during subsequent IV iron administrations. The risk for anaphylaxis at first exposure was 68 per 100,000 persons for iron dextran (95% CI, 57.8-78.7 per 100,000) and 24 per 100,000 persons for all nondextran IV iron products combined (iron sucrose, gluconate, and ferumoxytol) (95% CI, 20.0-29.5 per 100,000) , with an adjusted odds ratio (OR) of 2.6 (95% CI, 2.0-3.3; P < .001). At first exposure, when compared with iron sucrose, the adjusted OR of anaphylaxis for iron dextran was 3.6 (95% CI, 2.4-5.4); for iron gluconate, 2.0 (95% CI 1.2, 3.5); and for ferumoxytol, 2.2 (95% CI, 1.1-4.3). The estimated cumulative anaphylaxis risk following total iron repletion of 1000 mg administered within a 12-week period was highest with iron dextran (82 per 100,000 persons, 95% CI, 70.5- 93.1) and lowest with iron sucrose (21 per 100,000 persons, 95% CI, 15.3- 26.4). CONCLUSIONS AND RELEVANCE: Among patients in the US Medicare nondialysis population with first exposure to IV iron, the risk of anaphylaxis was highest for iron dextran and lowest for iron sucrose.


Assuntos
Anafilaxia/etiologia , Compostos Férricos/efeitos adversos , Óxido Ferroso-Férrico/efeitos adversos , Ácido Glucárico/efeitos adversos , Gluconatos/efeitos adversos , Complexo Ferro-Dextran/efeitos adversos , Idoso , Anafilaxia/epidemiologia , Feminino , Compostos Férricos/administração & dosagem , Óxido de Ferro Sacarado , Óxido Ferroso-Férrico/administração & dosagem , Ácido Glucárico/administração & dosagem , Gluconatos/administração & dosagem , Humanos , Incidência , Injeções Intravenosas , Complexo Ferro-Dextran/administração & dosagem , Masculino , Medicare Part A/estatística & dados numéricos , Estudos Retrospectivos , Risco , Estados Unidos/epidemiologia
13.
Vet Pathol ; 51(4): 820-3, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24078007

RESUMO

Intratesticular injection of EsterilSol (zinc gluconate neutralized with arginine) is a chemical sterilant for male dogs sometimes used in population control campaigns. Adverse reactions have been reported in 1% to 4% of treated dogs, but detailed histomorphologic descriptions are lacking. During a behavioral study conducted in the Chilean Patagonia in 2012, severe necrosuppurative orchitis and ulcerative dermatitis were observed in 2 of 36 (6%) dogs sterilized with EsterilSol according to the manufacturer's instructions. Reactions were noted on days 8 and 7 postinjection and required scrotal ablation on days 8 and 13, respectively; neither reaction was associated with the injection site. Although self-trauma following administration may have contributed, the cause of the adverse reactions is uncertain. EsterilSol is a relatively uncomplicated method to sterilize male dogs, but the occurrence of severe adverse reactions several days after administration emphasizes the need for the provision of long-term monitoring and veterinary care during sterilization campaigns using this product.


Assuntos
Dermatite/veterinária , Doenças do Cão/induzido quimicamente , Doenças do Cão/patologia , Gluconatos/efeitos adversos , Necrose/veterinária , Orquite/veterinária , Escroto/patologia , Animais , Castração/efeitos adversos , Castração/veterinária , Dermatite/patologia , Cães , Gluconatos/metabolismo , Técnicas Histológicas/veterinária , Masculino , Necrose/induzido quimicamente , Necrose/patologia , Orquite/induzido quimicamente , Orquite/patologia , Testículo/metabolismo
14.
Theriogenology ; 81(2): 230-6, 2014 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-24238399

RESUMO

Male sterilization by chemical agents is a nonsurgical contraceptive approach designed to induce azoospermia and, therefore, infertility. Intratesticular injection of zinc gluconate for sterilization of dogs has been described, but its use in cats remains limited. The objective of the present study was to evaluate, by light and transmission electron microscopy, the efficacy of a single intratesticular injection of a zinc gluconate solution (Testoblock) as a sterilant for male cats. Twelve sexually mature mixed breed cats were allocated at random into two groups (control = 6; treated = 6) and given a single injection into each testis of either isotonic saline or zinc gluconate, respectively. Histopathologic and ultrastructural evaluation was assessed at 120 days postinjection. Histopathologic changes were not detected in the testes from the control group. However, histologic evaluation of the treated group revealed atrophic and dilated seminiferous tubules, a decrease in the number of germ cells, and incomplete spermatogenesis. Sertoli cells had various degrees of cytoplasmic vacuolization. Intertubular tissue revealed active fibroblasts, collagen deposition, and inflammatory cells. The diameter of seminiferous tubules, epithelial height and tubular area were reduced (P < 0.05) in the treated group compared with controls. Azoospermia occurred in 8 of the 11 treated cats (73%). Ultrastructural evaluation of Leydig cells revealed loss of nuclear chromatin, increased smooth endoplasmatic reticulum, and mitochondria degeneration. Intratesticular injection of zinc gluconate solution impaired spermatogenesis in cats and has great potential as a permanent sterilant in this species.


Assuntos
Castração/veterinária , Gatos/fisiologia , Anticoncepção/veterinária , Anticoncepcionais Masculinos/uso terapêutico , Gluconatos/uso terapêutico , Espermatogênese/efeitos dos fármacos , Testículo/efeitos dos fármacos , Animais , Castração/métodos , Anticoncepção/métodos , Anticoncepcionais Masculinos/efeitos adversos , Gluconatos/efeitos adversos , Masculino , Microscopia Eletrônica de Transmissão , Testículo/ultraestrutura , Testosterona/sangue
15.
Cochrane Database Syst Rev ; (6): CD001364, 2013 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-23775705

RESUMO

BACKGROUND: The common cold is one of the most widespread illnesses and is a leading cause of visits to the doctor and absenteeism from school and work. Trials conducted in high-income countries since 1984 investigating the role of zinc for the common cold symptoms have had mixed results. Inadequate treatment masking and reduced bioavailability of zinc from some formulations have been cited as influencing results. OBJECTIVES: To assess whether zinc (irrespective of the zinc salt or formulation used) is efficacious in reducing the incidence, severity and duration of common cold symptoms. In addition, we aimed to identify potential sources of heterogeneity in results obtained and to assess their clinical significance. SEARCH METHODS: In this updated review, we searched CENTRAL (2012, Issue 12), MEDLINE (1966 to January week 2, 2013), EMBASE (1974 to January 2013), CINAHL (1981 to January 2013), Web of Science (1985 to January 2013), LILACS (1982 to January 2013), WHO ICTRP and clinicaltrials.gov. SELECTION CRITERIA: Randomised, double-blind, placebo-controlled trials using zinc for at least five consecutive days to treat, or for at least five months to prevent the common cold. DATA COLLECTION AND ANALYSIS: Two review authors independently extracted data and assessed trial quality. MAIN RESULTS: Five trials were identified in the updated searches in January 2013 and two of them did not meet our inclusion criteria. We included 16 therapeutic trials (1387 participants) and two preventive trials (394 participants). Intake of zinc was associated with a significant reduction in the duration (days) (mean difference (MD) -1.03, 95% confidence interval (CI) -1.72 to -0.34) (P = 0.003) (I(2) statistic = 89%) but not the severity of common cold symptoms (MD -1.06, 95% CI -2.36 to 0.23) (P = 0.11) (I(2) statistic = 84%). The proportion of participants who were symptomatic after seven days of treatment was significantly smaller (odds ratio (OR) 0.45, 95% CI 0.20 to 1.00) (P = 0.05) than those in the control, (I(2 )statistic = 75%). The incidence rate ratio (IRR) of developing a cold (IRR 0.64, 95% CI 0.47 to 0.88) (P = 0.006) (I(2) statistic = 88%), school absence (P = 0.0003) and prescription of antibiotics (P < 0.00001) was lower in the zinc group. Overall adverse events (OR 1.58, 95% CI 1.19 to 2.09) (P = 0.002), bad taste (OR 2.31, 95% CI 1.71 to 3.11) (P < 0.00001) and nausea (OR 2.15, 95% CI 1.44 to 3.23) (P = 0.002) were higher in the zinc group. The very high heterogeneity means that the averaged estimates must be viewed with caution. AUTHORS' CONCLUSIONS: Zinc administered within 24 hours of onset of symptoms reduces the duration of common cold symptoms in healthy people but some caution is needed due to the heterogeneity of the data. As the zinc lozenges formulation has been widely studied and there is a significant reduction in the duration of cold at a dose of ≥ 75 mg/day, for those considering using zinc it would be best to use it at this dose throughout the cold. Regarding prophylactic zinc supplementation, currently no firm recommendation can be made because of insufficient data. When using zinc lozenges (not as syrup or tablets) the likely benefit has to be balanced against side effects, notably a bad taste and nausea.


Assuntos
Resfriado Comum/tratamento farmacológico , Compostos de Zinco/uso terapêutico , Resfriado Comum/prevenção & controle , Formas de Dosagem , Gluconatos/efeitos adversos , Gluconatos/uso terapêutico , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Índice de Gravidade de Doença , Zinco/efeitos adversos , Zinco/uso terapêutico , Acetato de Zinco/efeitos adversos , Acetato de Zinco/uso terapêutico , Compostos de Zinco/efeitos adversos , Sulfato de Zinco/efeitos adversos , Sulfato de Zinco/uso terapêutico
16.
Anesthesiology ; 119(3): 569-75, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23598288

RESUMO

BACKGROUND: In an incidental finding, during a study of plasma chemistry after crystalloid infusion, participants reported subjective cognitive changes, particularly slower thinking, after saline but not Hartmann's (Ringer's lactate) solution. The authors tested the hypothesis that saline infusion would produce greater adverse cognitive changes than Plasmalyte infusion. METHODS: The authors conducted a randomized, cross-over, multiple blinded study of healthy adult volunteers. On separate days, participants received 30 ml/kg over 1 h of either 0.9% saline or Plasmalyte with the order randomly allocated. Plasma chemistry was tested on venous samples. As part of a battery of cognitive tests our primary endpoint was the reaction time index after infusion. RESULTS: The authors studied 25 participants. Plasma chloride was greater after saline than after Plasmalyte: mean difference 5.4 mM (95% CI, 4.1-6.6 mM; P < 0.001). Saline was also associated with greater metabolic acidosis: base-excess 2.5 mM more negative (95% CI, 1.9-3.0 mM more negative; P < 0.001). There was no evidence of a difference in the reaction time index between the two interventions: mean reaction time index 394 ms (SD, 72) after saline versus 385 ms (SD, 55) after Plasmalyte. Difference: saline 9 ms slower (95% CI, 30 ms slower to 12 ms faster; P = 0.39). There were minimal differences in the other cognitive and mood tests. CONCLUSIONS: Despite expected differences in plasma chemistry, the authors found that measures of cognition did not differ after infusions of Plasmalyte or saline.


Assuntos
Cognição/efeitos dos fármacos , Cloreto de Sódio/efeitos adversos , Acidose/induzido quimicamente , Adulto , Estudos Cross-Over , Feminino , Gluconatos/efeitos adversos , Humanos , Cloreto de Magnésio/efeitos adversos , Masculino , Pessoa de Meia-Idade , Cloreto de Potássio/efeitos adversos , Tempo de Reação/efeitos dos fármacos , Acetato de Sódio/efeitos adversos
17.
Ann Surg ; 255(5): 821-9, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22470070

RESUMO

OBJECTIVE: To assess the association of 0.9% saline use versus a calcium-free physiologically balanced crystalloid solution with major morbidity and clinical resource use after abdominal surgery. BACKGROUND: 0.9% saline, which results in a hyperchloremic acidosis after infusion, is frequently used to replace volume losses after major surgery. METHODS: An observational study using the Premier Perspective Comparative Database was performed to evaluate adult patients undergoing major open abdominal surgery who received either 0.9% saline (30,994 patients) or a balanced crystalloid solution (926 patients) on the day of surgery. The primary outcome was major morbidity and secondary outcomes included minor complications and acidosis-related interventions. Outcomes were evaluated using multivariable logistic regression and propensity scoring models. RESULTS: For the entire cohort, the in-hospital mortality was 5.6% in the saline group and 2.9% in the balanced group (P < 0.001). One or more major complications occurred in 33.7% of the saline group and 23% of the balanced group (P < 0.001). In the 3:1 propensity-matched sample, treatment with balanced fluid was associated with fewer complications (odds ratio 0.79; 95% confidence interval 0.66-0.97). Postoperative infection (P = 0.006), renal failure requiring dialysis (P < 0.001), blood transfusion (P < 0.001), electrolyte disturbance (P = 0.046), acidosis investigation (P < 0.001), and intervention (P = 0.02) were all more frequent in patients receiving 0.9% saline. CONCLUSIONS: Among hospitals in the Premier Perspective Database, the use of a calcium-free balanced crystalloid for replacement of fluid losses on the day of major surgery was associated with less postoperative morbidity than 0.9% saline.


Assuntos
Soluções Cardioplégicas/efeitos adversos , Procedimentos Cirúrgicos do Sistema Digestório , Cloreto de Sódio/efeitos adversos , Abdome/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Comorbidade , Serviços Médicos de Emergência , Gluconatos/efeitos adversos , Mortalidade Hospitalar , Humanos , Modelos Logísticos , Cloreto de Magnésio/efeitos adversos , Pessoa de Meia-Idade , Análise Multivariada , Cloreto de Potássio/efeitos adversos , Pontuação de Propensão , Estudos Retrospectivos , Acetato de Sódio/efeitos adversos , Equilíbrio Hidroeletrolítico , Adulto Jovem
20.
J Crit Care ; 27(2): 138-45, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22440386

RESUMO

PURPOSE: The purpose of the study was to determine the effects of Plasma-Lyte 148 (PL) vs 0.9% saline (NS) fluid resuscitation in diabetic ketoacidosis (DKA). METHODS: A multicenter retrospective analysis of adults admitted for DKA to the intensive care unit, who received almost exclusively PL or NS infusion up until 12 hours, was performed. RESULTS: Nine patients with PL and 14 patients with NS were studied. Median serum bicarbonate correction was higher in the PL vs NS groups at 4 to 6 hours (8.4 vs 1.7 mEq/L) and 6 to 12 hours (12.8 vs 6.2 mEq/L) from baseline (P < .05). Median standard base excess improved by 10.5 vs 4.2 mEq/L at 4 to 6 hours and by 16.0 vs 9.1 mEq/L at 6 to 12 hours in the PL and NS groups, respectively (P < .05). Chloride levels increased significantly in the NS vs PL groups over 24 hours. Potassium levels were lower at 6 to 12 hours in the PL group. Mean arterial blood pressure was higher at 2 to 4 hours in the PL group, whereas cumulative urine output was lower at 4 to 6 hours in the NS group. There were no differences in glycemic control or duration of intensive care unit stay. CONCLUSION: Patients with DKA resuscitated with PL instead of NS had faster initial resolution of metabolic acidosis and less hyperchloremia, with a transiently improved blood pressure profile and urine output.


Assuntos
Cetoacidose Diabética/terapia , Hidratação/métodos , Ressuscitação/métodos , Cloreto de Sódio/uso terapêutico , Adulto , Feminino , Gluconatos/efeitos adversos , Gluconatos/uso terapêutico , Humanos , Unidades de Terapia Intensiva , Cloreto de Magnésio/efeitos adversos , Cloreto de Magnésio/uso terapêutico , Masculino , Pessoa de Meia-Idade , Cloreto de Potássio/efeitos adversos , Cloreto de Potássio/uso terapêutico , Estudos Retrospectivos , Acetato de Sódio/efeitos adversos , Acetato de Sódio/uso terapêutico , Cloreto de Sódio/efeitos adversos , Cloreto de Sódio/química , Resultado do Tratamento , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...