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1.
J Gen Intern Med ; 31(3): 282-8, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26311200

RESUMEN

BACKGROUND: Health systems are increasingly implementing remote telephone and Internet refill systems to enhance patient access to medication refills. Remote refill systems may provide an effective approach for improving medication non-adherence, but more research is needed among patients with limited English proficiency with poor access to remote refill systems. OBJECTIVE: To compare the use of remote medication refill systems among limited-English-proficiency (LEP) and English-proficient (EP) patients with chronic conditions. METHODS: Cross-sectional survey in six languages/dialects (English, Cantonese, Mandarin, Korean, Vietnamese, and Spanish) of 509 adults with diabetes, hypertension, or hyperlipidemia. Primary study outcomes were self-reported use of 1) Internet refills, 2) telephone refills, and 3) any remote refill system. LEP was measured by patient self-identification of a primary language other than English and a claims record of use of an interpreter. Other measures were age, gender, education, years in the U.S., insurance, health status, chronic conditions, and number of prescribed medications. Analyses included multivariable logistic regression weighted for survey non-response. RESULTS: Overall, 33.1 % of patients refilled their medications by telephone and 31.6 % by Internet. Among LEP patients (n = 328), 31.5 % refilled by telephone and 21.2 % by Internet, compared with 36.7 % by telephone and 52.7 % by Internet among EP patients (n = 181). Internet refill by language groups were as follows: English (52.7 %), Cantonese (34.9 %), Mandarin (17.4 %), Korean (16.7 %), Vietnamese (24.4 %), and Spanish (12.6 %). Compared to EP patients, LEP patients had lower use of any remote refill system (adjusted odds ratio [AOR] 0.18; p < 0.001), CONCLUSIONS: LEP patients are significantly less likely than EP patients to use any remote medication refill system. Increased reliance on current systems for remote medication refills may increase disparities in health outcomes affecting LEP patients with poor access to telephone and Internet medication refills.


Asunto(s)
Prescripciones de Medicamentos , Disparidades en Atención de Salud/etnología , Internet/estadística & datos numéricos , Cumplimiento de la Medicación/etnología , Multilingüismo , Teléfono/estadística & datos numéricos , Anciano , Barreras de Comunicación , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad
2.
Scand J Immunol ; 81(1): 81-6, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25367031

RESUMEN

Behçet's disease (BD) is a chronic inflammatory autoimmune disease. Although raised levels of proinflammatory cytokines in BD have been reported, the pathogenesis is still unknown. The aim of this study was to investigate the association of NFKB1 and NFKBIA polymorphisms and their single and combined analysis effects on susceptibility of BD in Turkish population. We analysed the distribution of NFKB1 -94 ins/del ATTG (rs28362491) and NFKBIA 3' UTR A→G (rs696) polymorphisms using PCR-RFLP method in 89 patients with BD and 190 controls in this population. Statistical analysis of the results was performed by calculating OR, and 95% CI via χ(2) test and using Bonferroni correction. According to the significant results of both single and combined genotype analysis, the frequencies of ins/ins genotype and ins allele of rs28362491 were significantly higher in patients with BD (Pc = 0.003, 0.004, respectively). Also, higher frequencies of the rs696 variant containing AA genotype was found in patients with BD (Pc = 0.0033), whereas no statistical significant differences in distribution of the alleles of rs696 polymorphism in patients and controls. In addition, according to the combined genotype analysis, the wild type of both rs28362491 and rs696 polymorphisms (ins/ins/AA genotype) was also significantly higher in BD cases (Pc = 0.044). Our findings prove that both single and combined genotype analysis of rs28362491 and rs696 polymorphisms indicate that the wild genotypes of both two SNPs (ins/ins and AA genotypes) and ins/ins/AA combined genotype are strongly associated with enhanced risk of BD in a Turkish population.


Asunto(s)
Síndrome de Behçet/genética , Proteínas I-kappa B/genética , Subunidad p50 de NF-kappa B/genética , Femenino , Frecuencia de los Genes , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Masculino , Inhibidor NF-kappaB alfa , Reacción en Cadena de la Polimerasa , Polimorfismo de Longitud del Fragmento de Restricción , Polimorfismo de Nucleótido Simple , Turquía
3.
BJOG ; 122(1): 27-37, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25145491

RESUMEN

BACKGROUND: In twin pregnancies, the rates of adverse perinatal outcome and subsequent long-term morbidity are substantial, and mainly result from preterm birth (PTB). OBJECTIVES: To assess the effectiveness of progestogen treatment in the prevention of neonatal morbidity or PTB in twin pregnancies using individual participant data meta-analysis (IPDMA). SEARCH STRATEGY: We searched international scientific databases, trial registration websites, and references of identified articles. SELECTION CRITERIA: Randomised clinical trials (RCTs) of 17-hydroxyprogesterone caproate (17Pc) or vaginally administered natural progesterone, compared with placebo or no treatment. DATA COLLECTION AND ANALYSIS: Investigators of identified RCTs were asked to share their IPD. The primary outcome was a composite of perinatal mortality and severe neonatal morbidity. Prespecified subgroup analyses were performed for chorionicity, cervical length, and prior spontaneous PTB. MAIN RESULTS: Thirteen trials included 3768 women and their 7536 babies. Neither 17Pc nor vaginal progesterone reduced the incidence of adverse perinatal outcome (17Pc relative risk, RR 1.1; 95% confidence interval, 95% CI 0.97-1.4, vaginal progesterone RR 0.97; 95% CI 0.77-1.2). In a subgroup of women with a cervical length of ≤25 mm, vaginal progesterone reduced adverse perinatal outcome when cervical length was measured at randomisation (15/56 versus 22/60; RR 0.57; 95% CI 0.47-0.70) or before 24 weeks of gestation (14/52 versus 21/56; RR 0.56; 95% CI 0.42-0.75). AUTHOR'S CONCLUSIONS: In unselected women with an uncomplicated twin gestation, treatment with progestogens (intramuscular 17Pc or vaginal natural progesterone) does not improve perinatal outcome. Vaginal progesterone may be effective in the reduction of adverse perinatal outcome in women with a cervical length of ≤25 mm; however, further research is warranted to confirm this finding.


Asunto(s)
Hidroxiprogesteronas/uso terapéutico , Enfermedades del Recién Nacido/prevención & control , Muerte Perinatal/prevención & control , Embarazo Gemelar , Nacimiento Prematuro/prevención & control , Progesterona/uso terapéutico , Progestinas/uso terapéutico , Caproato de 17 alfa-Hidroxiprogesterona , Administración Intravaginal , Adulto , Displasia Broncopulmonar/prevención & control , Hemorragia Cerebral/prevención & control , Medición de Longitud Cervical , Cuello del Útero/diagnóstico por imagen , Enterocolitis Necrotizante/prevención & control , Femenino , Humanos , Recién Nacido , Embarazo , Síndrome de Dificultad Respiratoria del Recién Nacido/prevención & control , Resultado del Tratamiento
4.
J Fr Ophtalmol ; 47(2): 103997, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37919151

RESUMEN

OBJECTIVES: To assess dysfunctional personality beliefs associated with specific personality disorders (PD), as well as psychopathological symptoms and psychological distress levels in central serous chorioretinopathy (CSC) patients. MATERIAL AND METHODS: This cross-sectional study included acute and chronic CSC patients and age- and sex-matched healthy volunteers. Dysfunctional personality beliefs and psychopathological symptoms assessed with Personality Belief Questionnaire-Short Form and Symptom Check List-90 Revised (SCL-90-R), respectively, were compared between CSC patients and healthy volunteers and between acute and chronic CSC patients. MAIN RESULTS: Of the 55 CSC patients included in the study analysis, 21 (38.2%) had acute and 34 (61.8%) chronic CSC. Avoidant PD (13.92±3.79 vs. 12.03±3.98, P=0.012) and obsessive-compulsive PD (13.94±3.95 vs. 12.27±3.75, P=0.025) scores on the PBQ-SF were significantly higher in CSC patients than in healthy volunteers. The PBQ-SF scores were similar between acute and chronic CSC patients. CSC patients scored significantly higher on the general severity index (GSI) and all symptom dimensions except phobic anxiety and psychoticism on the SCL-90-R. In addition, scores for obsessive-compulsive, depression, interpersonal sensitivity, paranoid ideation, and GSI were significantly higher in acute than in chronic CSC patients. CONCLUSIONS: This first study investigating the relationship between CSC and dysfunctional personality beliefs indicates that CSC patients have higher levels of dysfunctional beliefs related to avoidant and obsessive-compulsive PD than healthy volunteers. These findings present a new aspect of the personality profile of CSC patients and point to a target for intervention, i.e., dysfunctional beliefs, through a cognitive-psychiatric approach.


Asunto(s)
Coriorretinopatía Serosa Central , Humanos , Coriorretinopatía Serosa Central/complicaciones , Coriorretinopatía Serosa Central/diagnóstico , Coriorretinopatía Serosa Central/psicología , Estudios Transversales , Trastornos de la Personalidad/complicaciones , Trastornos de la Personalidad/diagnóstico , Trastornos de la Personalidad/epidemiología , Personalidad , Encuestas y Cuestionarios
5.
Artículo en Inglés | MEDLINE | ID: mdl-37027499

RESUMEN

We examined prevalence of mental health treatment utilization among 447 lesbian, gay, bisexual, transgender, and Two-Spirit (LGBTT-S) American Indian/Alaska Native (AI/AN) adults and the association of mental health treatment utilization with socio-demographic factors, social support, and mental health diagnoses. We derived data from the HONOR Project, a multi-site cross-sectional survey of Native LGBTT-S adults from seven U.S. metropolitan cities. Rates of lifetime mental health treatment utilization were higher for women (87%), those who were college educated (84%), and homeowners (92%). Cisgender women and transgender AI/AN adults had a higher prevalence than cisgender men of major depression, generalized anxiety, and panic disorder. Rates of subthreshold and threshold posttraumatic stress disorder were significantly higher for transgender adults. Lower positive social support and higher emotional social support were associated with greater odds of mental health treatment utilization. Mental health diagnoses and lifetime mental health treatment utilization was positively associated.


Asunto(s)
Indígenas Norteamericanos , Trastornos Mentales , Minorías Sexuales y de Género , Personas Transgénero , Adulto , Femenino , Humanos , Masculino , Estudios Transversales , Trastornos Mentales/epidemiología , Salud Mental , Prevalencia
6.
Eur J Gynaecol Oncol ; 32(3): 283-5, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21797117

RESUMEN

PURPOSE: To investigate the diagnostic accuracy of endometrial curettage in patients with endometrial carcinoma. In this retrospective study, pre- and postoperative histopathologic findings of patients with endometrial cancer were investigated. METHODS: 168 patients with the final diagnosis of endometrial cancer were enrolled in the study. Pre- and postoperative histopathologic diagnoses and grades (according to the 1988 FIGO classification) of the patients were compared retrospectively. RESULTS: 22 patients were diagnosed as having endometrial hyperplasia and the remaining 136 patients had endometrial carcinoma preoperatively. Overall discrepancy rate of grades was 39% (31% upgrade, 8% downgrade; p < 0.05). There was also 9% discrepancy between the pre- and postoperative histopathological types. CONCLUSION: It has been suggested that since endometrial cancer patients with low grades according to the preoperative pathologic diagnosis have a potential to upgrade, the management of these patients if myometrial invasion is less than one-half thickness, simply by hysterectomy plus bilateral salpingo-oophorectomy (without lymph node sampling), might actually miss some patients who actually deserve surgical staging. Further studies are needed to draw a sufficient conclusion.


Asunto(s)
Carcinoma/patología , Hiperplasia Endometrial/patología , Neoplasias Endometriales/patología , Anciano , Carcinoma/cirugía , Legrado , Hiperplasia Endometrial/cirugía , Neoplasias Endometriales/cirugía , Femenino , Humanos , Persona de Mediana Edad , Estudios Retrospectivos , Estadísticas no Paramétricas
7.
Pharmazie ; 64(3): 202-9, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19348344

RESUMEN

This study has examined the effects of type of dairy product (whole milk, skim milk, heavy cream) and chocolate matrix (baking, dark, dairy milk, white) on the oral absorption of the chocolate flavanols (+)-catechin and (-)-epicatechin in a small animal model. In the study, each flavanol compound, as a solution in water or a dairy product or as a chocolate dispersion in water, was administered intragastrically to male Sprague-Dawley rats in an amount equal to or equivalent to 350 mg/kg. In each instance, blood samples were collected over a 5 h period, and used to measure plasma total catechin concentrations by HPLC after enzymatic hydrolysis of flavanol conjugates. Pharmacokinetic data were evaluated using a one compartment approach. Whole milk and heavy cream, and to a much lesser extent skim milk, lowered the oral absorption of both (+)-catechin and (-)-epicatechin and altered the AUC, C(max), k(a), k(e) and t1/2 values in direct proportion to their fat, but not to their protein, content. In addition, the t(max) for solutions of (-)-epicatechin in water and skim milk occurred 2 h earlier than from solutions in whole milk and heavy cream. Similarly, dispersions of baking chocolate in water and in whole milk yielded plasma levels of monomeric catechins that were, respectively, about equal to and much lower than those from aqueous solutions of authentic flavanols. A determining role for a chocolate matrix (dark, dairy milk or white chocolate) on the oral absorption of its constitutive monomeric flavanols was suggested by the apparent variability in plasma total catechins levels that existed among them both before and after their spiking with equal amounts of exogenous (+)-catechin and (-)-epicatechin. Such a variability could reflect differences among different chocolates in terms of their physical properties, matrix components, and matrix characteristics imposed by the manufacturing process used for each type of chocolate. In all the experiments, (+)-catechin demonstrated a higher oral absorption than (-)-epicatechin.


Asunto(s)
Cacao/química , Cacao/metabolismo , Productos Lácteos/análisis , Flavonoles/química , Flavonoles/metabolismo , Animales , Área Bajo la Curva , Catequina/sangre , Catequina/metabolismo , Catequina/farmacocinética , Bovinos , Cromatografía Líquida de Alta Presión , Flavonoles/farmacocinética , Fluorometría , Masculino , Leche/química , Proteínas de la Leche/análisis , Ratas , Ratas Sprague-Dawley
8.
Eur J Gynaecol Oncol ; 27(5): 528-30, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17139994

RESUMEN

Primary cancer of the vagina constitutes 1-2% of all malignant genital tract tumors in women. As one of the most complicated therapeutic problems in gynecological oncology, this disease had been deemed to be untreatable until the end of 1930s. Presently, as a result of technological improvements in radiotherapy and radical surgery, more favorable prognoses are known to be achieved even in advanced cases. In the present case, a woman with vaginal cancer and Stage IV massive uterovaginal prolapsus, which could not be repositioned under general anesthesia, was repositioned by surgical intervention prior to radiotherapy to avoid any potential vesicovaginal fistula formation. The cervix was bilaterally suspended to the pectineal ligaments by polypropylene mesh.


Asunto(s)
Carcinoma de Células Escamosas/radioterapia , Prolapso Uterino/cirugía , Neoplasias Vaginales/radioterapia , Fístula Vesicovaginal/prevención & control , Anciano , Carcinoma de Células Escamosas/complicaciones , Femenino , Humanos , Histerectomía/métodos , Estadificación de Neoplasias , Prolapso Uterino/complicaciones , Neoplasias Vaginales/complicaciones
9.
J Int Med Res ; 34(1): 73-6, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16604826

RESUMEN

Letrozole was compared with clomiphene citrate (CC) as a first-line treatment for ovulation induction in women with polycystic ovaries (PCOs). A total of 106 women with primary infertility and a diagnosis of PCOs were randomized to receive either 100 mg CC (n = 55) or 2.5 mg letrozole (n = 51) daily for 5 days. Human chorionic gonadotrophin (hCG) at a dose of 10000 IU was administered when at least one follicle with a mean diameter > or = 18 mm was observed using transvaginal ultrasound. The number of mature follicles was significantly lower, but endometrial thickness and ovulation and pregnancy rates were significantly higher in the letrozole group than in the CC group. In conclusion, letrozole is associated with a higher pregnancy rate than CC in PCO patients and may have a role as a first-line treatment for anovulatory patients with PCOs.


Asunto(s)
Clomifeno/administración & dosificación , Fármacos para la Fertilidad Femenina/administración & dosificación , Nitrilos/administración & dosificación , Inducción de la Ovulación/métodos , Síndrome del Ovario Poliquístico/tratamiento farmacológico , Triazoles/administración & dosificación , Adulto , Clomifeno/uso terapéutico , Femenino , Humanos , Infertilidad Femenina/tratamiento farmacológico , Infertilidad Femenina/terapia , Letrozol , Nitrilos/uso terapéutico , Síndrome del Ovario Poliquístico/complicaciones , Embarazo , Triazoles/uso terapéutico
10.
Cancer Chemother Pharmacol ; 14(1): 63-9, 1985.
Artículo en Inglés | MEDLINE | ID: mdl-3965161

RESUMEN

Chronic weekly administration of FUra to CD8F1 female mice bearing spontaneous mammary tumors produced body weight loss during the first 2 weeks of treatment, which became less severe during subsequent weeks of therapy. To our knowledge, the development of such a decrease in FUra toxicity in vivo during chronic treatment with the drug has not been described previously, and a study of this phenomenon was therefore undertaken in tumor-free CD8F1 female mice. Weekly administration of FUra at 85 mg/kg resulted in toxicity expressed in body weight loss and in depressed peripheral WBC levels; however, the magnitude of these toxic effects decreased significantly by the 5th week of treatment. Pretreatment of normal mice with FUra for 7 weeks resulted in a dose-related shift in the LD50 of FUra administered as a subsequent challenge. Compared with an LD50 of 240 mg/kg for FUra in normal mice, the LD50 in mice pretreated with FUra at 50 or 85 mg/kg per week was found to be significantly elevated to 370 and 460 mg/kg, respectively. Pretreatment with FUra at 85 mg/kg for 7 weeks did not alter the activity of the enzymes responsible for the activation of FUra, namely uridine kinase or orotate phosphoribosyltransferase, in the intestinal epithelium or bone marrow, but it did decrease the 24-h urinary excretion of intact [3H]FUra by almost 40% (P less than 0.01). In addition, the FUra pretreatment schedule resulted in a 31% (P = 0.14) increase in the activity of dihydrouracil dehydrogenase in the liver. These results suggest that increased degradation of FUra can be induced by chronic treatment with the drug. Finally, knowledge of the development of increased drug catabolism was used to increase the therapeutic effectiveness of FUra by its incorporation into an increasing-dose regimen. Mice bearing 24-h transplants of the murine breast tumor were treated with a constant dose of FUra for 12 weeks or with a dose that was increased, after 7 weeks, to a dose normally causing a high degree of drug-related mortality. The group receiving the incremented FUra dose had a significantly slower tumor growth rate without an increase in drug-related toxicity. These results are discussed in light of their obvious clinical implications.


Asunto(s)
Fluorouracilo/toxicidad , Oxidorreductasas actuantes sobre Donantes de Grupo CH-CH , Animales , Peso Corporal/efectos de los fármacos , Dihidrouracilo-Deshidrogenasa (NAD+) , Esquema de Medicación , Resistencia a Medicamentos , Femenino , Fluorouracilo/orina , Dosificación Letal Mediana , Recuento de Leucocitos , Hígado/enzimología , Neoplasias Mamarias Experimentales/tratamiento farmacológico , Ratones , Ratones Endogámicos , Orotato Fosforribosiltransferasa/análisis , Oxidorreductasas/análisis , Uridina Quinasa/análisis
11.
Trans R Soc Trop Med Hyg ; 89(3): 266-8, 1995.
Artículo en Inglés | MEDLINE | ID: mdl-7660428

RESUMEN

In this report we attempt to evaluate the prevalence of antibodies against Rickettsia conorii, R. typhi, Coxiella burnettii, and Ehrlichia chaffeensis in central Tunisia. Five hundred sera from blood donors, collected between March and June 1993, were tested for these 4 antibodies using an indirect immunofluorescence antibody assay (IFA). Nine percent of the sera had antibodies against R. conorii (IgG > 1:32) by IFA, and 8% by Western blotting; with IFA, 3.6% had antibodies to R. typhi, 26% to C. burnetii (> 1:50), and none to E. chaffeensis. Infection rates with R. conorii and R. typhi did not differ significantly between the sexes, but fewer young people had antibodies to R. typhi. A significantly higher prevalence of antibodies to C. burnetii was noted for males with no difference between age classes. No significant difference was detected between urban and rural areas. This study confirmed the endemicity of rickettsioses, and revealed a high seroprevalence of Q fever, in central Tunisia.


Asunto(s)
Donantes de Sangre , Infecciones por Rickettsiaceae/epidemiología , Rickettsiaceae/aislamiento & purificación , Adolescente , Adulto , Antígenos Bacterianos/análisis , Western Blotting , Niño , Coxiella burnetii/aislamiento & purificación , Ehrlichia chaffeensis/aislamiento & purificación , Femenino , Humanos , Inmunoglobulina G/análisis , Masculino , Persona de Mediana Edad , Rickettsia typhi/aislamiento & purificación , Salud Rural , Estudios Seroepidemiológicos , Túnez/epidemiología , Salud Urbana
12.
J Am Diet Assoc ; 104(1): 51-7, 2004 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-14702584

RESUMEN

OBJECTIVE: To examine associations of diet with acculturation among Hispanic immigrants from Mexico to Washington state and to compare dietary patterns of Hispanic with non-Hispanic white residents. DESIGN: Data are part of the baseline assessment for a community-randomized cancer prevention trial. The Fat-Related Diet Habits questionnaire and the National 5-A-Day for Better Health program dietary assessment instruments were used to collect data on fat and fruit and vegetable intake, respectively. Data were also collected on demographic characteristics and acculturation status. SUBJECTS/SETTING: A total of 1,689 adult Hispanic and non-Hispanic white residents of 20 communities in the Yakima Valley, WA, completed in-person interviews. STATISTICAL ANALYSES PERFORMED: Mixed model regression analyses tested associations of acculturation with diet. These models compared the fat and the fruit and vegetable intake of Hispanics vs non-Hispanic white residents. Additional analyses compared the diets of highly acculturated Hispanics with low-acculturated Hispanics. All models included age, sex, income, and education and were also adjusted for the random effect of community. RESULTS: Dietary patterns varied by ethnicity and acculturation status. On average, compared with non-Hispanic white residents, Hispanics consumed one more serving of fruits and vegetables per day (P<.001). Dietary habits changed as Hispanics acculturated to the United States. Highly acculturated Hispanics ate fewer servings of fruits and vegetables per day compared with those not highly acculturated (P<.05). Highly acculturated Hispanics had slightly higher, but not statistically significant, scores on the Fat-Related Diet Habits questionnaire, which corresponds to a higher fat intake, compared with low-acculturated Hispanics. The early dietary changes made on acculturation included adding fat at the table to breads and potatoes. APPLICATIONS/CONCLUSIONS: Nutrition professionals should encourage their Hispanic clients to maintain their traditional dietary practices, such as a high intake of fruits and vegetables and eating bread and potatoes without added fat.


Asunto(s)
Aculturación , Grasas de la Dieta/administración & dosificación , Frutas , Americanos Mexicanos/etnología , Verduras , Adolescente , Adulto , Culinaria , Encuestas sobre Dietas , Conducta Alimentaria , Femenino , Humanos , Masculino , México/etnología , Persona de Mediana Edad , Evaluación Nutricional , Análisis de Regresión , Washingtón , Población Blanca
13.
J Pharm Sci ; 67(11): 1643-5, 1978 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-712614

RESUMEN

Several therapeutic agents that alter infarct size were administered to rats with myocardial infarcts induced by electrocauterization. The myocardial tissue damage and infarct size correlated well with the creatine phosphokinase myocardial band activity, and these markers were utilized to assess the action of the therapeutic agents on myocardial tissue damage. Hyaluronidase, insulin, potassium chloride, and isoproterenol increased myocardial tissue damage whereas heparin and prednisolone administration resulted in decreased myocardial tissue damage after induced myocardial infarction in rats.


Asunto(s)
Infarto del Miocardio/patología , Animales , Creatina Quinasa/metabolismo , Hialuronoglucosaminidasa/uso terapéutico , Insulina/uso terapéutico , Isoproterenol/uso terapéutico , Masculino , Infarto del Miocardio/tratamiento farmacológico , Infarto del Miocardio/enzimología , Necrosis , Potasio/uso terapéutico , Prednisolona/uso terapéutico , Ratas
14.
J Pharm Sci ; 68(8): 976-8, 1979 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-480177

RESUMEN

A simple, rapid, sensitive, and specific field test for marijuana and its products is described. The test employs an extracting-eluting ssolvent and an inert adsorbent microcolumn coated with Fast Blue B salt as the reagent. One milligram or less of the suspect material can be tested within 1 min. Of greater than nonmarijuana plant samples tested, only nutmeg and its mace responded similarly to marijuana initially. A differentiation was possible by careful evaluation of the colored microcolumn and the elution behavior of the colored products. The test also provides for a confirmatory step, based on spectrophotometric analysis of the colored eluates. The reagent microcolumn was very stable to environmental factors such as moisture, light, and air.


Asunto(s)
Cannabis/análisis , Cromatografía Liquida/métodos , Colorantes , Compuestos de Diazonio , Indicadores y Reactivos , Plantas/análisis
15.
J Pharm Sci ; 74(2): 201-4, 1985 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-3989693

RESUMEN

A high-performance liquid chromatographic (HPLC) method was developed for the analysis of conjugated and esterified estrogens in tablets. The 3-sulfate estrogen derivatives were hydrolyzed with acid, mixed with ethinyl estradiol (the internal standard), and extracted into benzene. The liberated 3-phenolic estrogens were converted to dansyl derivatives, separated on an adsorption column, and detected fluorometrically. Estrogens with a 17-keto functional group required a prior reduction to the corresponding 17 beta-hydroxyl derivatives with sodium borohydride in order to be chromatographically resolved. The validity of the proposed method was demonstrated by analyzing samples of commercial tablets of conjugated and esterified estrogens of various strengths.


Asunto(s)
Cromatografía Líquida de Alta Presión/métodos , Estrógenos/análisis , Borohidruros , Compuestos de Dansilo/análisis , Estrógenos/aislamiento & purificación , Oxidación-Reducción , Soluciones , Comprimidos/análisis
16.
J Pharm Sci ; 68(9): 1179-81, 1979 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-501547

RESUMEN

To investigate if vitamin B6 inhibits prolactin release and to compare this effect to that of bromocriptine, a known suppressor of prolactin release, a study was conducted in male rats. Animals were pretreated with pyridoxine hydrochloride, pyridoxal hydrochloride, saline, or bromocriptine 30 min prior to receiving varying doses of chlorpromazine hydrochloride. Blood samples were obtained 90 min later and analyzed for serum prolactin by a double-antibody radioimmunoassay. Another study involved pyridoxal hydrochloride and saline pretreatments 30 min prior to doses of chlorpromazine hydrochloride. Blood samples collected 60 min later were also analyzed for serum prolactin. Pyridoxine hydrochloride significantly suppressed the chlorpromazine-induced prolactin rise (p less than 0.01). However, the suppression was significantly less than that produced by bromocriptine (p less than 0.01). Pyridoxal hydrochloride, another natural form of vitamin B6, failed to suppress prolactin under the conditions of both studies. This investigation may lend support to the concept that pyridoxine hydrochloride partially inhibits prolactin by a mechanism not involving dopamine.


Asunto(s)
Clorpromazina/farmacología , Prolactina/sangre , Piridoxina/farmacología , Animales , Bromocriptina/farmacología , Relación Dosis-Respuesta a Droga , Interacciones Farmacológicas , Masculino , Piridoxal/farmacología , Ratas
17.
J Pharm Sci ; 66(10): 1483-5, 1977 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-925909

RESUMEN

Myocardial infarctions were produced in rats by electro-cauterization of the left anterior descending artery, and the extent of myocardial damage was measured by serial serum levels of creatine phosphokinase activity utilizing spectrophotometric analysis. All animals were also evaluated for myocardial damage by electrocardiographic wave alterations. A correlation between myocardial infarct size and serum creatine phosphokinase was demonstrated. Significant arrhythmias and death occurred only in experimental groups where myocardial infarction had been produced. This small animal model offers a quick, inexpensive, and simple method for screening therapeutic agents that alter infarct size.


Asunto(s)
Infarto del Miocardio/fisiopatología , Animales , Creatina Quinasa/sangre , Modelos Animales de Enfermedad , Electrocardiografía , Frecuencia Cardíaca , Masculino , Métodos , Infarto del Miocardio/enzimología , Ratas , Factores de Tiempo
18.
J Occup Environ Med ; 45(1): 42-53, 2003 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-12553178

RESUMEN

Farmworkers are exposed to pesticides and may take home pesticide residues to their families. In this paper, self-reported pesticide exposure and home practices to reduce the amount of pesticide residues taken home were examined among 571 farmworkers. Urine samples from a subsample of farmworkers and children and dust samples from households and vehicles also assessed pesticide exposure. Overall, 96% of respondents reported exposure to pesticides at work. Many employers did not provide resources for hand washing. Farmworkers' protective practices to keep pesticide residues out of the home were at a low level. In a subset of respondents, pesticide levels above the limit of quantitation were seen in the urine of children and adults and in house and vehicle dust. The results support the take-home pathway of pesticide exposure. Ways must be found to reduce this pesticide exposure among children of farmworkers.


Asunto(s)
Agricultura , Salud de la Familia , Salud Laboral , Residuos de Plaguicidas , Adolescente , Adulto , Niño , Femenino , Desinfección de las Manos , Humanos , Masculino , Persona de Mediana Edad , Padres , Proyectos de Investigación , Factores Socioeconómicos
19.
Int J Pharm ; 212(2): 153-60, 2001 Jan 16.
Artículo en Inglés | MEDLINE | ID: mdl-11165072

RESUMEN

The effects of cis-9-octadecenoic acid (oleic acid) and of a group of chemically related cis- (ricinoleic acid) and trans- (ricinelaidic acid) 12-monohydroxylated derivatives and their corresponding ethyl and methyl esters on the skin permeation of model hydrophobic (hydrocortisone, log K=1.61) and hydrophilic (5-fluorouracil, log K=-0.89) drugs was investigated in vitro using excised hairless mouse skin. Drug solutions were prepared in propylene glycol, with and without the addition of a fatty acid to a level of 5%. Whereas the addition of oleic acid markedly enhanced the transdermal flux of both drugs relative to a sample in propylene glycol alone (hydrocortisone approximately 1800-fold; 5-fluorouracil approximately 330-fold), that of a cis- or trans-12-monohydroxylated analog of oleic acid resulted in only a small increase (1.4-2.7-fold for hydrocortisone; 4.4-6.6-fold for 5-fluorouracil). On the other hand, the methyl and ethyl esters of cis- and trans-12-hydroxy-9-octadecenoic acid exerted a much greater enhancing effect (327-720-fold for hydrocortisone, 42-74-fold for 5-fluorouracil) than the corresponding parent fatty acids. Furthermore, whereas the ethyl esters were found to have a greater effect on the skin permeation of hydrocortisone than the methyl esters, the reverse was true with regards to 5-fluorouracil. Additionally, the esters of trans-12-hydroxy-9-octadecenoic acid promoted permeation to an extent comparable to that achieved with their cis-counterparts.


Asunto(s)
Fluorouracilo/farmacocinética , Hidrocortisona/farmacocinética , Ácido Oléico/farmacología , Ácidos Ricinoleicos/farmacología , Piel/metabolismo , Animales , Ésteres/farmacología , Femenino , Técnicas In Vitro , Ratones , Ratones Pelados , Permeabilidad
20.
Talanta ; 36(9): 883-7, 1989 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18964827

RESUMEN

The enantiomeric composition of carprofen has been determined in a rapid and reliable manner by proton nuclear magnetic resonance spectroscopy with a chiral lanthanide-shift chelate. Carprofen was converted into a mixture of enantiomeric methyl ester derivatives which were then complexed with tris[3-(heptafluoropropylhydroxymethylene)-(+)-camphorato]europium(III) in CDCl(3). The concentration of substrate in the test sample was 0.15M and the chiral-shift reagent:substrate molar ratio was 0.453. Determination of the enantiomers was based on the relative intensities of the signals for the alpha-methyl protons. The mean recovery +/-SD for six determinations of S(+)-carprofen from synthetic enantiomeric mixtures was 99.3 +/- 1.7%.

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