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1.
Rev. méd. Chile ; 144(10): 1326-1335, oct. 2016. ilus, tab
Artigo em Espanhol | LILACS | ID: biblio-845448

RESUMO

Tamoxifen (Tmf), is a standard of care for women with estrogen receptor positive (ER+) breast cancer. Endoxifen is a Tmf metabolite generated by cytochrome P450 2D6 (CYP2D6). Antidepressive agents (AD) are often prescribed to women with breast cancer not only for depression, but also for anxiety and hot flashes. Some AD are substrates or inhibitors of the Tmf metabolic pathway. Therefore there may be interactions when Tmf and AD are prescribed simultaneously. Oncologic protection afforded by Tmf may become less effective or null when AD are indicated, especially in poor metabolizing patients. We performed an update of the literature about the criteria for choosing AD in women receiving Tmf. Tricyclic AD, paroxetine and fluoxetine should be avoided in patients receiving Tmf, because they are strong inhibitors of CYP2D6. Bupropion, duloxetine and sertraline are only moderate inhibitors of the cytochrome and are not contraindicated. Citalopram, desvenlafaxine, escitalopram, milnacipran and venlafaxine are recommended, because they do not influence the metabolism and clinical efficacy of Tmf and have fewer drug interactions. However, other additional pharmacological and clinical issues should be considered when choosing an antidepressant in women with breast cancer.


Assuntos
Humanos , Feminino , Tamoxifeno/farmacologia , Neoplasias da Mama/tratamento farmacológico , Antineoplásicos Hormonais/farmacologia , Antidepressivos/farmacologia , Tamoxifeno/metabolismo , Neoplasias da Mama/metabolismo , Fatores de Risco , Antineoplásicos Hormonais/metabolismo , Citocromo P-450 CYP2D6/efeitos dos fármacos , Interações Medicamentosas , Genótipo , Antidepressivos/metabolismo
2.
Rev Med Chil ; 144(10): 1326-1335, 2016 Oct.
Artigo em Espanhol | MEDLINE | ID: mdl-28074989

RESUMO

Tamoxifen (Tmf), is a standard of care for women with estrogen receptor positive (ER+) breast cancer. Endoxifen is a Tmf metabolite generated by cytochrome P450 2D6 (CYP2D6). Antidepressive agents (AD) are often prescribed to women with breast cancer not only for depression, but also for anxiety and hot flashes. Some AD are substrates or inhibitors of the Tmf metabolic pathway. Therefore there may be interactions when Tmf and AD are prescribed simultaneously. Oncologic protection afforded by Tmf may become less effective or null when AD are indicated, especially in poor metabolizing patients. We performed an update of the literature about the criteria for choosing AD in women receiving Tmf. Tricyclic AD, paroxetine and fluoxetine should be avoided in patients receiving Tmf, because they are strong inhibitors of CYP2D6. Bupropion, duloxetine and sertraline are only moderate inhibitors of the cytochrome and are not contraindicated. Citalopram, desvenlafaxine, escitalopram, milnacipran and venlafaxine are recommended, because they do not influence the metabolism and clinical efficacy of Tmf and have fewer drug interactions. However, other additional pharmacological and clinical issues should be considered when choosing an antidepressant in women with breast cancer.


Assuntos
Antidepressivos/farmacologia , Antineoplásicos Hormonais/farmacologia , Neoplasias da Mama/tratamento farmacológico , Tamoxifeno/farmacologia , Antidepressivos/metabolismo , Antineoplásicos Hormonais/metabolismo , Neoplasias da Mama/metabolismo , Citocromo P-450 CYP2D6/efeitos dos fármacos , Interações Medicamentosas , Feminino , Genótipo , Humanos , Fatores de Risco , Tamoxifeno/metabolismo
3.
Rev Med Chil ; 139(1): 89-99, 2011 Jan.
Artigo em Espanhol | MEDLINE | ID: mdl-21526323

RESUMO

Tamoxifen is used as an adjuvant therapy to reduce breast cancer recurrence among women with estrogen receptor positive tumors. Antidepressants are also commonly used in such women, to treat depression or to manage hot flushes, a frequent tamoxifen secondary effect. Some antidepressants could potentially inhibit cytochrome P450 2D6, required to activate tamoxifen, interfering with its action. Although there is not a clear cut directive on the subject, it is nowadays recommended to treat women with antidepressants with the lower cytochrome P450 2D6 inhibition potential to avoid a possible antagonism that may reduce tamoxifen s prevention of breast cancer recurrence at least in some patients with CYP2D6 genetic variation. The recommended antidepressants are desvenlafaxine, milnacipran, venlafaxin, escitalopram and citalopram.


Assuntos
Antidepressivos/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Inibidores do Citocromo P-450 CYP2D6 , Antagonistas de Estrogênios/metabolismo , Tamoxifeno/metabolismo , Antidepressivos/farmacologia , Citocromo P-450 CYP2D6/genética , Interações Medicamentosas , Feminino , Humanos
4.
Rev. méd. Chile ; 139(1): 89-99, ene. 2011. ilus
Artigo em Espanhol | LILACS | ID: lil-595271

RESUMO

Tamoxifen is used as an adjuvant therapy to reduce breast cáncer recurrence among women with estrogenreceptor positive tumors. Antidepressants are also com-monly used in such women, to treat depression or to manage hotflush.es, afrequent tamoxifen secondary effect. Some antidepressants couldpotentially inhibit cytochrome P450 2D6, required to actívate tamoxifen, interfering with its action. Although there is not a clear cut directive on the subject, it is nowadays recommended to treat women with antidepressants with the lower cytochrome P450 2D6 inhibition potential to avoid apossible antagonism that may reduce tamoxifen s prevention of breast cáncer recurrence at least in some patients with CYP2D6 genetic variation. The recommended antidepressants are desvenlafaxine, milnacipran, venlafaxin, escitalopram and citalopram.


Assuntos
Feminino , Humanos , Antidepressivos/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , /antagonistas & inibidores , Antagonistas de Estrogênios/metabolismo , Tamoxifeno/metabolismo , Antidepressivos/farmacologia , /genética , Interações Medicamentosas
5.
Rev. chil. neuro-psiquiatr ; 43(1): 51-60, 2005. tab
Artigo em Espanhol | LILACS | ID: lil-498175

RESUMO

Los Trastornos del Espectro Autista (TEA) agrupan diversos cuadros clínicos que se caracterizan por presentar alteraciones del desarrollo con deficiencias en las áreas de comunicación, conducta e interacción social. Su prevalencia ha presentado un importante aumento desde 4 a 5 por 10.000 hasta 10 por 10.000 niños. Las manifestaciones clínicas son características según cada etapa evolutiva y, tanto la adaptabilidad al medio, como el pronóstico final van a depender del desarrollo intelectual alcanzado y de la rehabilitación psicosocial temprana. El pronóstico de vida es igual al de la población general y los autistas adultos presentan generalmente cuadros de agitación psicomotora y de adaptación, tanto depresivos como ansiosos. El origen de las TEA es neurobiológico, se remonta a etapas tempranas del desarrollo fetal o infantil y está relacionado con factores genéticos complejos. El abordaje psicofarmacológico es inespecífico y va dirigido a corregir las alteraciones conductuales que priman en cada caso.


Autism Spectrum Disorders (ASD) are severe developmental diseases marked by significant impairment in social, behavioral, and communicative functioning. Their prevalence has increased from earlier estimates of 4 to 5 per 10.000 to about 10 per 10.000. Symptoms are age specific. Intellectual development and early psychosocial rehabilitation are the most important prognostic factors. Life expectancy is similar to that of the general population. In adult life, comorbidity with anxiety disorders or depression and aggression toward self and others may appear. The assumption is that ASDs are of neurobiological origin beginning before birth or in very early child development and involve complex genetic factors. The psychopharmacotherapy of autistic disorders involves treating behavioral symptoms.


Assuntos
Humanos , Masculino , Feminino , Criança , Adulto , Transtorno Autístico/diagnóstico , Transtorno Autístico/tratamento farmacológico , Neurobiologia , Prognóstico , Psicofarmacologia
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