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1.
Int J Psychiatry Med ; 56(6): 422-432, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-33327842

RESUMO

Risk factors for attention deficit hyperactivity disorder (ADHD), psychiatric, and classroom academic/behavioral problems were examined in 929 students grades 1-6 in Jeddah, Saudi Arabia. Teachers identified ADHD by completing the Vanderbilt ADHD scale. Compared to controls without ADHD, students with ADHD were more likely to have early parental loss, head trauma, motor/language delay, family psychiatric problems, and high family stress. Among those with ADHD, risk factors for psychiatric comorbidity were older age, family psychiatric history, and motor/language delay. Risk factors for impaired academic/behavioral performance were high family stress, family psychiatric problems, and chronic illness. Identifying risk factors for ADHD and common comorbidities associated with this disorder may help parents, teachers and clinicians detect this condition, increasing effective management.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Comportamento Problema , Idoso , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Comorbidade , Humanos , Fatores de Risco , Arábia Saudita/epidemiologia , Instituições Acadêmicas , Estudantes
2.
HIV Med ; 18(6): 412-418, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28444867

RESUMO

OBJECTIVES: Tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) is approved for pre-exposure prophylaxis (PrEP) against HIV infection. Adherence is critical for the success of PrEP, but current adherence measurements are inadequate for real-time adherence monitoring. We developed and validated a urine assay to measure tenofovir (TFV) to objectively monitor adherence to PrEP. METHODS: We developed a urine assay using high-performance liquid chromatography coupled to tandem mass spectrometry with high sensitivity/specificity for TFV that allowed us to determine TFV concentrations in log10 categories between 0 and 10 000 ng/mL. We validated the assay in three cohorts: (1) HIV-positive subjects with undetectable viral loads on a TDF/FTC-based regimen, (2) healthy HIV-negative subjects who received a single dose of TDF/FTC, and (3) HIV-negative subjects receiving daily TDF/FTC as PrEP for 24 weeks. RESULTS: The urine assay detected TFV with greater sensitivity than plasma-based measures and with a window of measurements within 7 days of the last TDF/FTC dose. Based on the urine log-linear clearance after the last dose and its concordance with all detectable plasma levels, a urine TFV concentration > 1000 ng/mL was identified as highly predictive of the presence of TFV in plasma at > 10 ng/mL. The urine assay was able to distinguish high and low adherence patterns within the last 48 h (> 1000 ng/mL versus 10-1000 ng/mL), as well as nonadherence (< 10 ng/mL) extended over at least 1 week prior to measurement. CONCLUSIONS: We provide proof of concept that a semiquantitative urine assay measuring levels of TFV could be further developed into a point-of-care test and be a useful tool to monitor adherence to PrEP.


Assuntos
Antivirais/administração & dosagem , Emtricitabina/administração & dosagem , Infecções por HIV/prevenção & controle , Tenofovir/administração & dosagem , Tenofovir/urina , Adulto , Antivirais/uso terapêutico , Cromatografia Líquida , Esquema de Medicação , Emtricitabina/uso terapêutico , Feminino , Humanos , Masculino , Adesão à Medicação , Pessoa de Meia-Idade , Projetos Piloto , Profilaxia Pré-Exposição , Espectrometria de Massas em Tandem , Tenofovir/uso terapêutico , Adulto Jovem
3.
J Relig Health ; 54(2): 649-63, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24944165

RESUMO

Religious/spiritual (r/s) characteristics of physicians influence their attitude toward integrative medicine and spiritual care. Indonesia physicians collaborate with traditional, complementary, and alternative medicine (TCAM) professionals within modern healthcare system, while Indian physicians are not reported to do so. The aim of the study was to understand the r/s characteristics and their influence on Indian and Indonesian physicians' acceptance of TCAM/spirituality in modern healthcare system. An exploratory, pilot, cross-cultural, cross-sectional study, using Religion and Spirituality in Medicine, and Physician Perspectives (RSMPP) survey questionnaire, compared r/s characteristics and perspectives on integrative medicine of 169 physicians from two allopathic, Sweekar-Osmania University (Sweekar-OU), India, University of Airlanga (UNAIR), Indonesia, and a TCAM/Central Research Institute of Unani Medicine (CRIUM) institute from India. More physicians from UNAIR and CRIUM (89.1 %) described themselves as "very"/"moderately" religious, compared to 63.5 % Sweekar-OU (p = 0.0000). Greater number of (84.6 %) UNAIR physicians described themselves as "very" spiritual and also significantly high (p < 0.05) in intrinsic religiosity as compared to Sweekar-OU and TCAM physicians; 38.6 % of UNAIR and 32.6 % of CRIUM participants reported life-changing spiritual experiences in clinical settings as against 19.7 % of Sweekar-OU; 92.3 % of UNAIR, compared to CRIUM (78.3 %) and Sweekar-OU (62 %), felt comfortable attending to patients' spiritual needs, (p = 0.0001). Clinical comfort and not r/s characteristics of participants was the significant (p = 0.05) variable in full regression models, predictive of primary outcome criteria; "TCAM or r/s healing as complementary to allopathic treatment." In conclusion, mainstreaming TCAM into healthcare system may be an initial step toward both integrative medicine and also improving r/s care interventions by allopathic physicians.


Assuntos
Atitude do Pessoal de Saúde , Comparação Transcultural , Medicina Integrativa , Médicos/psicologia , Religião e Medicina , Espiritualidade , Adulto , Terapias Complementares/psicologia , Estudos Transversais , Feminino , Humanos , Índia , Indonésia , Masculino , Médicos/estatística & dados numéricos , Projetos Piloto , Inquéritos e Questionários
4.
Spinal Cord ; 52(8): 646-9, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24937696

RESUMO

OBJECTIVES: We assess the prevalence of sexual dysfunction in patients with spinal cord injury (SCI), compare sexual function and sexual distress between female patients with SCI and gender-matched healthy controls, and address risk factors associated with sexual dysfunction among Iranian female patients with SCI. SETTING: Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran. METHODS: Eligible Iranian female patients with SCI were included in this cross-sectional study. They were asked to provide sociodemographic information, and complete the Female Sexual Function Index, Hospital Anxiety and Depression Scale and Female Sexual Distress Scale-Revised questionnaire. RESULTS: Of the 105 patients participated in this study, the average age was 41.0 (s.d.=10.1) years. Women with SCI reported significantly higher levels of sexual dysfunction compared with normal controls. Approximately, 88% of SCI patients reported at least one type of sexual dysfunction, whereas only 37% of healthy controls reported sexual dysfunction. Lack of vaginal lubrication was reported more frequent in SCI patients compared with controls. Women with SCI reported a significantly higher level of sexual distress compared with healthy women. Sexual dysfunction was observed to be significantly higher in older patients, those with less education, patients with complete lesions, those with sexual distress and patients who were anxious and depressed. CONCLUSION: Sexual dysfunction is highly prevalent among Iranian women with SCI. Sexual dysfunction is associated with age, education, symptoms of depression and anxiety and level of injury. Sexual counseling during the rehabilitation period may help to prevent sexual dysfunction following SCI.


Assuntos
Doenças dos Genitais Femininos , Traumatismos da Medula Espinal/complicações , Traumatismos da Medula Espinal/epidemiologia , Adulto , Feminino , Doenças dos Genitais Femininos/epidemiologia , Doenças dos Genitais Femininos/etiologia , Doenças dos Genitais Femininos/psicologia , Humanos , Irã (Geográfico)/epidemiologia , Modelos Logísticos , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica , Índice de Gravidade de Doença , Fatores Socioeconômicos , Estresse Psicológico/epidemiologia , Estresse Psicológico/etiologia , Inquéritos e Questionários , Adulto Jovem
5.
J Relig Health ; 53(4): 1161-75, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23625126

RESUMO

Allopathic medical professionals in developed nations have started to collaborate with traditional, complementary, and alternative medicine (TCAM) to enquire on the role of religion/spirituality (r/s) in patient care. There is scant evidence of such movement in the Indian medical community. We aim to understand the perspectives of Indian TCAM and allopathic professionals on the influence of r/s in health. Using RSMPP (Religion, Spirituality and Medicine, Physician Perspectives) questionnaire, a cross-sectional survey was conducted at seven (five TCAM and two allopathic) pre-selected tertiary care medical institutes in India. Findings of TCAM and allopathic groups were compared. Majority in both groups (75% of TCAM and 84.6% of allopathic practitioners) believed that patients' spiritual focus increases with illness. Up to 58% of TCAM and allopathic respondents report patients receiving support from their religious communities; 87% of TCAM and 73% of allopaths believed spiritual healing to be beneficial and complementary to allopathic medical care. Only 11% of allopaths, as against 40% of TCAM, had reportedly received 'formal' training in r/s. Both TCAM (81.8%) and allopathic (63.7%) professionals agree that spirituality as an academic subject merits inclusion in health education programs (p = 0.0003). Inclusion of spirituality in the health care system is a need for Indian medical professionals as well as their patients, and it could form the basis for integrating TCAM and allopathic medical systems in India.


Assuntos
Atitude do Pessoal de Saúde , Terapias Complementares , Medicina Integrativa/métodos , Medicina Tradicional , Religião e Medicina , Espiritualidade , Adulto , Estudos Transversais , Feminino , Humanos , Índia , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto Jovem
6.
J Relig Health ; 53(6): 1800-14, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24430129

RESUMO

Persons with mental illnesses in India and rest of developing world continue to consult religious/spiritual (R/S) healers or traditional, complementary and alternative medicine (TCAM) professionals prior to seeking psychiatric services that are devoid of spiritual components of care. We aim to understand TCAM and allopathic professionals' perspectives on patients' R/S needs within mental health services, cross-sectional study was conducted at five TCAM and two allopathic tertiary care hospitals in three different Indian states; 393 participants completed RSMPP, a self-administered, semi-structured survey questionnaire. Perspectives of TCAM and allopathic health professionals on role of spirituality in mental health care were compared. Substantial percentage, 43.7 % TCAM and 41.3 % allopathic, of participants believe that their patients approach R/S or TCAM practitioners for severe mental illness; 91.2 % of TCAM and 69.7 % of allopaths were satisfied with R/S healers (p = 0.0019). Furthermore, 91.1 % TCAM and 73.1 % allopaths (p = 0.000) believe that mental health stigma can be minimized by integrating with spiritual care services. Overall, 87 % of TCAM and 73 % of allopaths agreed to primary criterion variable: 'spiritual healing is beneficial and complementary to psychiatric care.' A quarter of allopaths (24.4 %) and 38 % of TCAM physicians reportedly cross-refer their grieving patients to religious/TCAM healer and psychiatrist/psychologist, respectively; on logistic regression, significant (p < 0.05) predictors were clinical interactions/references to r/s healers. Providing spiritual care within the setup of psychiatric institution will not only complement psychiatric care but also alleviate stigma against mental health services. Implications on developing spiritual care services like clinical chaplaincy are discussed.


Assuntos
Atitude do Pessoal de Saúde , Serviços de Saúde Mental , Terapias Espirituais , Estereotipagem , Adulto , Estudos Transversais , Feminino , Humanos , Índia , Masculino , Centros de Atenção Terciária
8.
Acta Psychiatr Scand ; 126(5): 385-92, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22616640

RESUMO

OBJECTIVE: To measure how primary care physicians (PCPs) and psychiatrists treat mild depression. METHOD: We surveyed a national sample of US PCPs and psychiatrists using a vignette of a 52-year-old man with depressive symptoms not meeting Major Depressive Episode criteria. Physicians were asked how likely they were to recommend an antidepressant counseling, combined medication, and counseling or to make a psychiatric referral. RESULTS: Response rate was 896/1427 PCPs and 312/487 for psychiatrists. Compared with PCPs, psychiatrists were more likely to recommend an antidepressant (70% vs. 56%), counseling (86% vs. 54%), or the combination of medication and counseling (61% vs. 30%). More psychiatrists (44%) than PCPs (15%) were 'very likely' to promote psychiatric referral. PCPs who frequently attended religious services were less likely (than infrequent attenders) to refer the patient to a psychiatrist (12% vs. 18%); and more likely to recommend increased involvement in meaningful relationships/activities (50% vs. 41%) and religious community (33% vs. 17%). CONCLUSION: Psychiatrists treat mild depression more aggressively than PCPs. Both are inclined to use antidepressants for patients with mild depression.


Assuntos
Transtorno Depressivo/terapia , Médicos de Atenção Primária/estatística & dados numéricos , Padrões de Prática Médica/estatística & dados numéricos , Psiquiatria/estatística & dados numéricos , Adulto , Idoso , Antidepressivos/uso terapêutico , Terapia Combinada/estatística & dados numéricos , Aconselhamento/estatística & dados numéricos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Encaminhamento e Consulta/estatística & dados numéricos , Inquéritos e Questionários
9.
J Relig Health ; 50(4): 901-10, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21861239

RESUMO

Women (n = 15) who were pregnant after a traumatic late pregnancy loss (termination because of fetal death or serious anomalies) completed psychometric screening tests and scales, including the Perinatal Grief Scale (PGS), the Impact of Event Scale (IES), the Duke Depression Inventory (DDI), the Generalized Anxiety Disorder-7 (GAD), and the Hoge Scale for Intrinsic Religiosity (IR). Despite a mean elapsed time since the prior loss of 27 (range, 7-47) months, half (7/15, 47%) of the combined groups had high levels of grief on the PGS. Multiple positive scores on psychometric tests were frequent: Sixty percent (9/15) had high scores on the PGS Active Grief subscale or on the IES. Forty percent (6/15) had a high score on the DDI, and 17% (3/15) on the GAD. IR scores significantly and negatively correlated with scores on the Despair subscale of the PGS. The results from this pilot study suggest that high levels of grief and PTS symptoms are significant problems for pregnant women who have suffered late loss of a wanted pregnancy. Religiosity may play an important part in maternal coping during these stressful pregnancies.


Assuntos
Aborto Espontâneo/psicologia , Anormalidades Congênitas/psicologia , Pesar , Segundo Trimestre da Gravidez/psicologia , Religião e Psicologia , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Aborto Terapêutico/psicologia , Adaptação Psicológica , Adulto , Feminino , Morte Fetal , Humanos , Acontecimentos que Mudam a Vida , Projetos Piloto , Gravidez , Gestantes/psicologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Adulto Jovem
10.
J Relig Health ; 49(4): 485-97, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19690963

RESUMO

Religious beliefs and practices may aid in coping with bereavement and grief after pregnancy loss. Data from 103 women enrolled in the original Lehigh Valley Perinatal Loss Project, and who were followed-up for at least 1 year, were evaluated for the impact of initial religious practices and beliefs on the course and severity of grief. Religious practices corresponding to standard scales of religiosity and agreement with specific beliefs were rated by the women on a Likert scale of 1-5. Neither agreement with statements corresponding to extrinsic and intrinsic religiosity or to positive religious coping, nor frequency of religious service attendance was predictive of follow-up scores on the Perinatal Grief Scale. Religious struggle, agreement with statements classified as negative religious coping, and continued attachment to the baby were all associated with more severe grief.


Assuntos
Aborto Espontâneo/psicologia , Adaptação Psicológica , Luto , Mães/psicologia , Espiritualidade , Adulto , Atitude Frente a Saúde , Feminino , Morte Fetal , Humanos , Apego ao Objeto , Gravidez , Primeiro Trimestre da Gravidez/psicologia , Apoio Social , Inquéritos e Questionários , Adulto Jovem
11.
J Cell Biol ; 40(1): 225-35, 1969 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-5782447

RESUMO

A method is described for isolation of relatively large quantities of large and small hormone storage granules from the beef adenohypophysis. The hormone storage granules are highly purified, as indicated by ultrastructural and biochemical criteria. The average size of large granules is 400 mmicro and of small granules is 220 mmicro. The large granules contain growth hormone and prolactin; the small granules contain high concentrations of follicle-stimulating, luteinizing, and thyroid-stimulating hormones. An alkaline protease with a pH optimum of 8.3 is associated with the small granule fraction.


Assuntos
Grânulos Citoplasmáticos/análise , Hipófise/citologia , Hormônios Adeno-Hipofisários/isolamento & purificação , Animais , Bovinos , Grânulos Citoplasmáticos/enzimologia , Hormônio Foliculoestimulante/isolamento & purificação , Hormônio do Crescimento/isolamento & purificação , Hormônio Luteinizante/isolamento & purificação , Microscopia Eletrônica , Peptídeo Hidrolases , Hipófise/enzimologia , Prolactina/isolamento & purificação , Tireotropina/isolamento & purificação
12.
Science ; 164(3877): 310-2, 1969 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-4180472

RESUMO

Fluorocitrate, a Krebs cycle inhibitor, induices neurons to rapidly expel multitudinous lysosomes, mitochondria, and other cytoplasmic constituents into their axons. After convulsive seizures commence, spectacular axonal balloons develop owing to obstruction of axonal flow by "log jams" of extruded organelles. A swelling of neuronal mitochondria is apparently responsible for the disgorgement of cytoplasmic material into axons.


Assuntos
Axônios/patologia , Ciclo do Ácido Cítrico/efeitos dos fármacos , Fluoracetatos/farmacologia , Mitocôndrias/metabolismo , Medula Espinal/patologia , Fosfatase Ácida/análise , Animais , Transporte Axonal , Axônios/citologia , Axônios/efeitos dos fármacos , Gatos , Depressão Química , Histocitoquímica , Região Lombossacral , Lisossomos/enzimologia , Microscopia Eletrônica , Mitocôndrias/efeitos dos fármacos , Convulsões/induzido quimicamente , Medula Espinal/efeitos dos fármacos
13.
Science ; 209(4460): 1023-6, 1980 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-7403864

RESUMO

In kidney proximal tubules of male mice the mitochondria are larger and more electron-lucent, autophagic vacuoles and lysosomes (predominantly myeloid bodies) more numerous and voluminous, and exocytosed intraluminal myeloid bodies more common than in females. Males also have higher kidney activities of mitochondrial cytochrome c oxidase and lysosomal hydrolases, and excrete larger quantities of hydrolases and protein in the urine. Orchiectomy evokes the feminine pattern whereas testosterone administration induces the male pattern. Endogenous testosterone modulates mitochondrial structure and function and enhances the activity of the lysosomal-vacuolar system in proximal tubule cells.


Assuntos
Túbulos Renais Proximais/ultraestrutura , Diferenciação Sexual/efeitos dos fármacos , Testosterona/farmacologia , Animais , Castração , Enzimas/urina , Feminino , Rim/efeitos dos fármacos , Lisossomos/efeitos dos fármacos , Lisossomos/enzimologia , Masculino , Camundongos , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/enzimologia , Tamanho do Órgão/efeitos dos fármacos
14.
Science ; 268(5216): 1500-3, 1995 Jun 09.
Artigo em Inglês | MEDLINE | ID: mdl-7770777

RESUMO

Progesterone is shown here to be produced from pregnenolone by Schwann cells in peripheral nerves. After cryolesion of the sciatic nerve in male mice, axons regenerate and become myelinated. Blocking either the local synthesis or the receptor-mediated action of progesterone impaired remyelination. Administration of progesterone or its precursor, pregnenolone, to the lesion site increased the extent of myelin sheath formation. Myelination of axons was also increased when progesterone was added to cultures of rat dorsal root ganglia. These observations indicate a role for locally produced progesterone in myelination, demonstrate that progesterone is not simply a sex steroid, and suggest a new therapeutic approach to promote myelin repair.


Assuntos
Bainha de Mielina/fisiologia , Progesterona/biossíntese , Células de Schwann/metabolismo , Animais , Axônios/ultraestrutura , Células Cultivadas , Di-Hidrotestosterona/análogos & derivados , Di-Hidrotestosterona/farmacologia , Gânglios Espinais , Masculino , Camundongos , Mifepristona/farmacologia , Bainha de Mielina/ultraestrutura , Regeneração Nervosa , Pregnenolona/metabolismo , Pregnenolona/farmacologia , Progesterona/farmacologia , Progesterona/fisiologia , Nervo Isquiático/metabolismo
15.
J Clin Invest ; 80(5): 1322-31, 1987 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-3119663

RESUMO

Brief perfusion of heart with calcium-free medium renders myocardial cells calcium-sensitive so that readmission of calcium results in uncontrolled Ca2+ entry and acute massive cell injury (calcium paradox). We investigated the hypothesis that polyamines may be involved in the mediation of abnormal Ca2+ influx and cell damage in the calcium paradox. The isolated perfused rat heart was used for these studies. Calcium-free perfusion promptly (less than 5 min) decreased the levels of polyamines and the activity of their rate-regulating synthetic enzyme, ornithine decarboxylase (ODC), and calcium reperfusion abruptly (less than 15-180 s) increased these components. alpha-Difluoromethylornithine (DFMO), a specific suicide inhibitor of ODC, suppressed the calcium reperfusion-induced increase in polyamines and the concomitant increase in myocardial cellular 45Ca influx, loss of contractility, release of cytosolic enzymes, myoglobin, and protein, and structural lesions. Putrescine, the product of ODC activity, nullified DFMO inhibition and restored the calcium reperfusion-induced increment in polyamines and the full expression of the calcium paradox. Putrescine itself enhanced the reperfusion-evoked release of myoglobin and protein in the absence of DFMO. Hypothermia blocked the changes in heart ODC and polyamines induced by calcium-free perfusion and calcium reperfusion and prevented the calcium paradox. These results indicate that rapid Ca2+-directed changes in ODC activity and polyamine levels are essential for triggering excessive transsarcolemmal transport of Ca2+ and explosive myocardial cell injury in the calcium paradox.


Assuntos
Cálcio/toxicidade , Cardiopatias/induzido quimicamente , Poliaminas/fisiologia , Animais , Cálcio/administração & dosagem , Cálcio/metabolismo , Citosol/metabolismo , Eflornitina/farmacologia , Feminino , Cardiopatias/patologia , Cardiopatias/fisiopatologia , Hipotermia Induzida , Microscopia Eletrônica , Contração Miocárdica , Miocárdio/patologia , Mioglobina/metabolismo , Ornitina Descarboxilase/metabolismo , Perfusão , Putrescina/fisiologia , Ratos , Ratos Endogâmicos , Espermidina/fisiologia , Espermina/fisiologia
16.
MMW Fortschr Med ; 149(51-52): 31-2, 34, 2007 Dec 13.
Artigo em Alemão | MEDLINE | ID: mdl-18246826

RESUMO

Previous intercessory prayer studies showed symptom improvement and lower rates of complications in patients who were prayed for, whether it was a direct prayer or a distant intercessory prayer. The effect of intercessory prayer was not observed in cardiology patients during two new multicentre studies (MANTRA, STEP). The STEP study actually showed an unfavourable effect when the patient knew of distant prayers made on his/her behalf. Thus, prayer as an "applicable therapeutic method" could not be empirically verified. However, active prayer within the framework of a doctor-patient relationship can strengthen the patient's optimism and activate the body's healing resources.


Assuntos
Artrite Reumatoide/terapia , Ponte de Artéria Coronária/psicologia , Cura pela Fé , Infarto do Miocárdio/terapia , Complicações Pós-Operatórias/terapia , Religião e Medicina , Artrite Reumatoide/psicologia , Unidades de Cuidados Coronarianos , Humanos , Infarto do Miocárdio/psicologia , Papel do Médico/psicologia , Relações Médico-Paciente , Complicações Pós-Operatórias/psicologia , Ensaios Clínicos Controlados Aleatórios como Assunto , Espiritualidade
17.
Acta Gastroenterol Belg ; 80(2): 229-236, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29560687

RESUMO

BACKGROUND: Chronic hepatitis B (CHB) is a serious and prevalent disease which may negatively influence health related quality of life (HRQOL) and fatigue. The aim of the present study was to examine the relationship between demographic variables, HRQOL, and fatigue. METHODS: A cross-sectional study was conducted involving 418 Iranian patients with CHB (average age 44.1 years, majority males). Participants completed a multidimensional fatigue inventory, chronic liver disease questionnaire, Euro quality of life-five dimensions questionnaire, and demographic information. Bivariate analyses were conducted using the Spearman correlation and Mann-Whitney U test. Hierarchical logistic regression modeling identified independent predictors of fatigue. RESULTS: The most prevalent problems related to HRQOL were anxiety/depression and pain/discomfort. Except for reduced motivation other dimensions of fatigue were significantly higher among those with CHB compared to healthy controls (p<0.05). Age, sex, education, employment, disease stage and all HRQOL subscales were significantly related to fatigue level. The Nagelkerke R Square for the logistic regression model was 0.542. CONCLUSIONS: Poor HRQOL and fatigue are widespread among patients with CHB. Given these associations between demographic, psychological, and other HRQOL dimensions and fatigue, interventions that address these factors may help to reduce fatigue in patients with CHB.


Assuntos
Ansiedade , Depressão , Fadiga , Hepatite B Crônica , Dor , Qualidade de Vida , Adulto , Ansiedade/epidemiologia , Ansiedade/fisiopatologia , Estudos Transversais , Depressão/epidemiologia , Depressão/fisiopatologia , Fadiga/epidemiologia , Fadiga/etiologia , Fadiga/psicologia , Feminino , Hepatite B Crônica/complicações , Hepatite B Crônica/epidemiologia , Hepatite B Crônica/fisiopatologia , Hepatite B Crônica/psicologia , Humanos , Irã (Geográfico)/epidemiologia , Masculino , Dor/epidemiologia , Dor/etiologia , Prevalência , Inquéritos e Questionários
18.
J Neurosci ; 21(23): RC184, 2001 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-11717387

RESUMO

Numerous studies have demonstrated that drugs of abuse activate the mesolimbic dopamine reward pathway, and it is widely held that this activation contributes to the motivational and positive reinforcing properties of these substances. However, there is evidence that endogenous opioid systems within this brain reward circuit also play a role in drug reinforcement and drug-seeking behavior. Using microdialysis in freely moving rats, we sought to determine whether various drugs of abuse (i.e., ethanol, cocaine, d-amphetamine, and nicotine) would increase neurotransmission of endogenous opioid peptides (i.e., endorphins) in the nucleus accumbens. Drugs were administered intraperitoneally twice at 3 h intervals, and the endorphin content of microdialysates was analyzed by a solid-phase radioimmunoassay. Acute administration of ethanol, cocaine, and d-amphetamine transiently elevated extracellular levels of endorphins in the nucleus accumbens, whereas nicotine and saline were without effect. We hypothesize that this drug-induced release of endorphins may contribute to the positive reinforcing and motivating properties of ethanol and psychostimulants.


Assuntos
Anfetamina/farmacologia , Cocaína/farmacologia , Endorfinas/metabolismo , Etanol/farmacologia , Núcleo Accumbens/efeitos dos fármacos , Transmissão Sináptica/efeitos dos fármacos , Animais , Endorfinas/análise , Espaço Extracelular/química , Espaço Extracelular/metabolismo , Masculino , Microdiálise , Motivação , Nicotina/farmacologia , Núcleo Accumbens/metabolismo , Radioimunoensaio , Ratos , Ratos Long-Evans , Recompensa , Transmissão Sináptica/fisiologia
19.
Biochim Biophys Acta ; 379(1): 43-56, 1975 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-234755

RESUMO

Isoelectric focusing was used to study the multiple forms of acid phosphatase, arylsulfatase, beta-glucuronidase and beta-N-acetylhexosaminidase in lysosomes isolated from rat kidney. The isoelectric points of the main protein and hydrolase peaks were 1-1.5 units lower when electrofocusing was done in a pH 3-10 gradient than in a pH 10-3 gradient, apparently because the lysosomal constituents aggregated strongly at their isoelectric points and tended to settle somewhat in the gradient due to gravity. In the extended pH gradient the acidic form of each hydrolase occurred as asingle, relatively discrete peak. However, when pooled acidic fractions were refocused in a restricted pH gradient (pH 6-3 or 3-5) multiple acidic enzyme and protein components were resolved with isoelectric points between 2.7 and 5.1. When autolysis was minimized by extracting lysosomal fractions at alkaline pH (0.2% Triton X-100, 0.1%p-nitrophenyloxamic acid, 0.1 M glycine buffer, pH9) and including 0.1%p-NITROPHENYLOXAMIC ACID, AN INHIBITOR OF LYSOSOMAL NEURAMINIDASE AND CATHEPSIN D, in the pH gradient, arylsulfatase, beta-glucuronidase and beta-N-acetylhexosaminidase occurred in two forms, an acidic form with an isoelectric point of about 4.4, and a basic form with an isoelectric point close to 6.2, 6.7 and 8.0, respectively. Acid phosphatase occurred in three forms with isoelectric points of 4.1, 5.6 and 7.4. When some autolytic digestion was permitted by extracting lysosomal fractions in an acidic medium (0.2% Triton X-100, 0.1 M sodium acetate buffer, pH 5.2) AT 0-4DEGREES C and omitting p-nitrophenyloxamic acid from the gradient, the acidic form of beta-glucuronidase and the intermediate form of acid phosphatase were lost, the isoelectric points of the acidic forms of acid phosphatase, arylsulfatase and beta-N-acetylhexosaminidase were increased 0.6-1.2 units, and the isoelectric point of the basic forms of acid phosphatase, arylsulfatase and beta-glucuronidase was increased 0.5 unit. When lysosomal extracts were incubated with bacterial neuraminidase before electrofocusing, the acidic forms of acid phosphatase, arylsulfatase and beta-glucuronidase were largely lost, the isoelectric point of the acidic form of beta-N-acetylhexosaminidase was increased from 4.5 to 6.4, and the isoelectric points of the basic forms of all four hydrolases were increased 0.5-1.5 units. Autoincubation of lysosomal extracts in vitro at pH 5.2 PRODUCED SIMILAR, THOUGH LESS MARKED, effects. cont'd


Assuntos
Hidrolases/análise , Rim/enzimologia , Lisossomos/enzimologia , Neuraminidase , Fosfatase Ácida/análise , Aminoácidos , Animais , Glucuronidase/análise , Glioxilatos , Hexosaminidases/análise , Concentração de Íons de Hidrogênio , Hidrólise , Focalização Isoelétrica , Nitrobenzenos , Ácido Oxâmico/análogos & derivados , Conformação Proteica , Ratos , Sulfatases/análise
20.
Biochim Biophys Acta ; 762(2): 366-71, 1983 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-6403052

RESUMO

Testosterone was previously shown to induce an early (less than 1 min) receptor-dependent stimulation of endocytosis, hexose and amino acid transport in mouse kidney cortex (Koenig, H., Goldstone, A. and Lu, C.Y. (1982) Biochem. Biophys. Res. Commun. 104, 165-172). Testosterone (10(-8) M) has now been found to stimulate rapidly (less than 30 s) the influx and efflux of 45Ca2+ in cortex slices. Testosterone also decreased mitochondrial 45Ca and augmented soluble 45Ca, indicating a mobilization of intracellular calcium. Incubation of cortex slices in calcium-free medium without or with 2.5 mM EGTA decreased basal endocytosis, hexose and amino acid transport and blocked the hormonal response. 100 microM verapamil blocked the hormonal response without affecting basal transport. The calcium ionophore A23187 rapidly stimulated endocytosis, hexose and amino acid transport. These data indicate that androgenic stimulation of membrane transport functions involves an increased influx of extracellular calcium and a mobilization of intracellular calcium. Increased cytosolic Ca2+ is probably the regulatory signal for these transport processes.


Assuntos
Aminoácidos/metabolismo , Cálcio/metabolismo , Endocitose/efeitos dos fármacos , Hexoses/metabolismo , Córtex Renal/metabolismo , Testosterona/farmacologia , Animais , Transporte Biológico/efeitos dos fármacos , Calcimicina/farmacologia , Ácido Egtázico/farmacologia , Córtex Renal/efeitos dos fármacos , Camundongos , Verapamil/farmacologia
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