Colapso del inmunoprivilegio y estrés emocional en Alopecia Areata / Collapse of the immunoprivilege and emotional stress in alopecia areata

Resumen El folículo piloso es una estructura compleja que presenta diversas características morfológicas macroscópicas, microscópicas e inmunológicas especiales que permiten el adecuado funcionamiento de la misma, en algunasenfermedades estos mecanismos de regulación inmunológica se ven alteradose incluso exacerbados por factores como el estrés emocional. El objetivo de esta revisión es conocer los mecanismos inmunobiológicos específicos del folículo pilosoanalizando el papel que juegan diversos factores como la pérdida delinmunoprivilegio y el estrés emocional en el desarrollo de la alopecia areata.

Abstract The hair follicle is a complex structure that presents diverse morphologicaland immunological characteristics that allow the proper functioning of the unit.In some diseases as alopecia areata these mechanisms of immune regulation are disrupted by external factorssuch as emotional stress preventing the growth of the hair shaft. The objective of this review is to recognize the specific immunobiological mechanisms of the hair follicle, analyzing the role played by the loss of immunoprivilege and emotional stress in the development of alopecia areata.

Tratamiento quirúrgico de los adenomas hipofisarios en el Noroeste Argentino / Surgical treatment of pituitary adenomas in the Argentine Northwest

Introducción: Los tumores de hipófisis representan aproximadamente un 10% de los tumores intracraneales. Los adenomas hipofisarios son ampliamente la lesión selar más frecuente. Es fundamental que se conformen equipos capaces de tratar holísticamente esta patología en las distintas regiones de nuestro vasto territorio. El propósito del presente trabajo es presentar nuestra experiencia en el manejo quirúrgico de los adenomas hipofisarios en el Noroeste Argentino. Materiales y métodos: Estudio retrospectivo de pacientes operados por adenomas selares, desde enero de 2013 hasta abril de 2019, en la provincia de Tucumán, por el autor Senior. Resultados: Se analizaron 211 pacientes operados de adenomas pituitarios. En el 75% (n=158) las resecciones fueron totales y en el 25% (n=53) fueron resecciones subtotales. De los 88 pacientes con macroadenomas no funcionantes y déficit visual, el 94% (n=83) presentó mejoría visual en el postoperatorio. De los 52 pacientes con acromegalia, un 75% (n=39) presentó remisión bioquímica completa postquirúrgica. De los 26 pacientes con enfermedad de Cushing, un 81% (n=21) presentó remisión bioquímica completa postquirúrgica. De los 21 pacientes con prolactinomas, un 71% (n=15) normalizaron los niveles de prolactina en el postoperatorio. Conclusión: Los resultados en el tratamiento quirúrgico de los adenomas hipofisarios de la presente serie son comparables a los reportados por centros especializados internacionales. Debemos formar equipos capaces de tratar esta patología en las distintas regiones de la Argentina.

Background: Pituitary tumors account for 10% of intracranial tumors. Pituitary adenomas are the most common selar lesion. It is essential that teams be formed capable of treating this pathology holistically in the different regions of our vast territory. The purpose of this article is to present our experience in the surgical management of pituitary adenomas in the Northwest of Argentine. Materials and methods: A retrospective analysis was done studding patients operated from pituitary adenomas, from January 2013 to April 2019, in Tucumán, by the Senior Author. Results: We analyzed 211 patients operated from pituitary adenomas, of which 75% (n=158) had gross total resections and 25% (n=53) had subtotal resections. Of the 88 patients with non-functioning macroadenomas and visual deficit, 94% (n=83) presented visual improvement after surgery. Of the 52 patients with acromegaly, 75% (n=39) presented complete biochemical remission after surgery. Of the 26 patients with Cushing's disease, 81% (n=21) presented complete biochemical remission after surgery. Of the 21 patients with prolactinomas, 71% (n=15) normalized prolactin levels after surgery. Conclusion: Our results in the surgical treatment of pituitary adenomas are comparable to those reported by international specialized centers. We must form teams capable of treating this pathology in the different regions of Argentina

"In x Out": Revisando o Viés de Grupo através da Perspectiva Biológica / "In x Out": Revisando el Sesgo de Grupo a través de la Perspectiva Biológica / "In x Out": Reviewing the Group Bias through the Biological Perspective

Os fatores subjacentes ao favorecimento do endogrupo e de indiferença/hostilidade ao exogrupo são amplamente estudados pela psicologia social, onde estudos reportam que, por exemplo, indivíduos confiam mais e associam palavras positivas aos membros do mesmo grupo. O estudo desses fatores pode ajudar na compreensão de fenômenos tais como preconceito e etnocentrismo. As perspectivas evolucionista e neuroendócrina vêm sendo extremamente relevantes nos últimos anos para o estudo do favoritismo ingroup. Todavia, uma busca sistemática nas bases de dados Lilacs, Scielo, Google Scholar e Web of Science por palavras-chave relacionadas ao viés de grupo demonstrou uma carência por publicações nesse tema no Brasil. Dos trabalhos recuperados, apenas um se enquadrava na perspectiva evolucionista e nenhum abordava os mecanismos neuroendócrinos do viés de grupo. Dessa forma, o objetivo do presente estudo é discutir o viés de grupo através de uma perspectiva biológica, explicitando as hipóteses para a evolução desses comportamentos, os métodos empregados para o estudo dos mesmos e as bases neuroendócrinas e os substratos neurais que os medeiam.

Los factores subyacentes al favorecimiento del endogrupo y a la indiferencia/hostilidad al exogrupo son ampliamente estudiados por la psicología social, donde estudios informan, por ejemplo, que los indivíduos confian más y asocian palabras positivas a los miembros del mismo grupo. El estúdio de esos factores puede ayudar en la comprensíon de fenómenos tales como el prejuicio y el etnocentrismo. Las perspectivas evolucionista y neuroendócrina han sido extremadamente relevantes en los últimos años para el estúdio del favoritismo ingroup. Sin embargo, una búsqueda sistemática en las bases de datos Lilacs, Scielo, Web of Science y Google Scholar por palabras claves relacionadas al sesgo de grupo demostró una carencia de publicaciones sobre ese tema en Brasil. De los trabajos recuperados sólo uno se ajustaba a la perspectiva evolucionista y ninguno abordaba los mecanismos neuroendocrino del sesgo de grupo. De esta manera, el objetivo del presente estudio es discutir el sesgo de grupo a través de una perspectiva biológica, explicando las hipótesis para la evolución de esos comportamientos, los métodos utilizados para el estúdio de ellos, las bases neuroendocrinas y los sustratos neurales que los median.

The factors underlying to the ingroup favoritism and outgroup indifference/hostility are broadly studied by social psychology, where studies report that, for example, individuals trust more and associate positive words to members of the same group. The study of these factors can help in understand phenomena such as prejudice and ethonocentrism. However, a systematic search in the databases Web of Science, Google Scholar, Scielo, and Lilacs for the keywords related to group bias showed a studies shortage for this topic in Brazil. Besides, in the studies retrieved, just one fitted into evolutionary perspective and no study has approached the neuroendocrine mechanisms of the group bias. Therefore, the objective of this study was to discuss the group bias through the biological perspective, explaining the evolutionary hypothesis to the evolution of these behaviors, the methods applied to study this topic, and the neuroendocrine basis and neural substrates mediating them.

Comparison of CT Features of Hepatic Metastases of Gastro-entero-pancreatic Adenocarcinomas with and Without Neuroendocrine Differentiation / 中国医学影像学杂志

Purpose To compare the CT features of hepatic metastases of gastro-entero-pancreatic adenocarcinomas with and without neuroendocrine differentiation [NED(+) and NED(-)] and to explore the value of CT features in differentiation of the two groups.Material and Methods From January 2009 to December 2015,abdominal CT scans of 17 pathologically proved cases of NED(+) gastro-entero-pancreatic adenocarcinomas with hepatic metastases and 34 pathologically proved cases of NED(-) hepatic metastases with sex,age and primary site matched were retrospectively reviewed.CT features including hepatic metastases number,size,distribution,shape and enhancement were assessed,as well as presence of lymphadenopathy or ascites.Differences of CT features between the two groups were analyzed.Results Compared with NED(-) group,hepatic metastases of NED(+) group more frequently demonstrated a peripheral enhancement on artery phase (94.1％ vs.44.1％,P＜0.05),and more washout on portal venous phase (41.2％ vs.5.9％,P＜0.05),while hepatic metastases of NED(--) group showed more plateau type (91.2％ vs.58.8％).There was no significant difference of other findings between the two groups (P＞0.05).Logistic regression revealed that enhancement area in hepatic artery phase and enhancement changes in portal venous phase were independent factors for differential diagnosis (P＜0.05).The area under the ROC curve of combining the two features was 0.811 (P＜0.05).Conclusion There are some different CT enhancement features between NED(+) and NED(-) hepatic metastases of gastro-entero-pancreatic adenocarcinomas,which are helpful in differential diagnosis.

Dehydroepiandrosterone Sulfate Level Varies Nonlinearly with Symptom Severity in Major Depressive Disorder

OBJECTIVE: The pathophysiology of major depressive disorder (MDD) is still not well understood. Conflicting results for surrogate biomarkers in MDD have been reported, which might be a consequence of the heterogeneity of MDD patients. Therefore, we aim to investigate how the severity of depression and various symptom domains are related to the levels of dehydroepiandrosterone sulfate (DHEA-s) in MDD patients. METHODS: We recruited 117 subjects from a general practice. Depressive symptoms were assessed using the Beck Depression Inventory (BDI). Depressive symptoms were divided into three subdomains according to BDI items; somatic symptoms, guilt and failure, and mood and inhibition. RESULTS: In subjects with very-mild-to-moderate depression, the DHEA-s level increased as BDI score did. However, the DHEA-s levels in the subjects with severe depression were significantly lower than in subjects with moderate depression (p=0.003). DHEA-s level was correlated with the BDI subscore for guilt and failure in very-mild-to-moderate depression (r=0.365, p=0.006). CONCLUSION: The DHEA-s level appears to be indicative of MDD severity with respect to depressive symptoms, especially regarding guilt and failure. Our findings suggest that the upregulation of DHEA-s may be a part of a compensatory process in very-mild-to-moderate depression, and the failure of this compensation mechanism may underlie the development of severe depression.

Factors Associated with Postoperative Diabetes Insipidus after Pituitary Surgery

BACKGROUND: Determining risk factors for diabetes insipidus (DI) after pituitary surgery is important in improving patient care. Our objective is to determine the factors associated with DI after pituitary surgery. METHODS: We reviewed records of patients who underwent pituitary surgery from 2011 to 2015 at Philippine General Hospital. Patients with preoperative DI were excluded. Multiple logistic regression analysis was performed and a predictive model was generated. The discrimination abilities of the predictive model and individual variables were assessed using the receiving operator characteristic curve. RESULTS: A total of 230 patients were included. The rate of postoperative DI was 27.8%. Percent change in serum Na (odds ratio [OR], 1.39; 95% confidence interval [CI], 1.15 to 1.69); preoperative serum Na (OR, 1.19; 95% CI, 1.02 to 1.40); and performance of craniotomy (OR, 5.48; 95% CI, 1.60 to 18.80) remained significantly associated with an increased incidence of postoperative DI, while percent change in urine specific gravity (USG) (OR, 0.53; 95% CI, 0.33 to 0.87) and meningioma on histopathology (OR, 0.05; 95% CI, 0.04 to 0.70) were significantly associated with a decreased incidence. The predictive model generated has good diagnostic accuracy in predicting postoperative DI with an area under curve of 0.83. CONCLUSION: Greater percent change in serum Na, preoperative serum Na, and performance of craniotomy significantly increased the likelihood of postoperative DI while percent change in USG and meningioma on histopathology were significantly associated with a decreased incidence. The predictive model can be used to generate a scoring system in estimating the risk of postoperative DI.

A review on the evidence of transgenerational transmission of posttraumatic stress disorder vulnerability

Objective: To understand the risks of posttraumatic stress disorder (PTSD) development in the next generation of PTSD patients, we conducted a review on the biological, but not genetic, evidence of transgenerational transmission of PTSD vulnerability. Methods: Pertinent articles published from 1985 to September 2011 were searched using online academic search engines, including MEDLINE, EMBASE, ScienceDirect, OVID, PsycLIT, and SCOPUS, and a non-systematic review was conducted. Results: There is paradoxical evidence that hypothalamic-pituitary-adrenal axis changes in PTSD patients may also be evident in their offspring. This effect and biological vulnerability to PTSD may be transmitted across generations through maternal epigenetic programming during pregnancy. The samples of most studies, which were not large enough and represented the outcome of few research groups, consisted of a specific type of patients with a particular trauma. Conclusions: There is still a need to conduct studies in other geographical areas with different genetic background and larger samples considering different types of trauma other than those specified in the current literature, so as to strengthen the evidence of transgenerational transmission of PTSD vulnerability. .

Recent evidence and potential mechanisms underlying weight gain and insulin resistance due to atypical antipsychotics

Objective: Atypical antipsychotics (AAPs) promote obesity and insulin resistance. In this regard, the main objective of this study was to present potential mechanisms and evidence concerning side effects of atypical antipsychotics in humans and rodents. Method: A systematic review of the literature was performed using the MEDLINE database. We checked the references of selected articles, review articles, and books on the subject. Results: This review provides consistent results concerning the side effects of olanzapine (OL) and clozapine (CLZ), whereas we found conflicting results related to other AAPs. Most studies involving humans describe the effects on body weight, adiposity, lipid profile, and blood glucose levels. However, it seems difficult to identify an animal model replicating the wide range of changes observed in humans. Animal lineage, route of administration, dose, and duration of treatment should be carefully chosen for the replication of the findings in humans. Conclusions: Patients undergoing treatment with AAPs are at higher risk of developing adverse metabolic changes. This increased risk must be taken into account when making decisions about treatment. The influence of AAPs on multiple systems is certainly the cause of such effects. Specifically, muscarinic and histaminergic pathways seem to play important roles. .

Obesidade e o hipotálamo / Obesity and the hypothalamus

A obesidade é hoje um grande problema de saúde pública. Este artigo revisa o papel do hipotálamo na obesidade, em especial a dos neurônios NPY/AGRP, POMC/ CART, da área lateral e dos núcleos paraventricular e ventromedial do hipotálamo, e as conexões com a via corticolímbica (AU)

Obesity is currently a major public health problem. This article reviews the role of the hypothalamus in obesity, with special reference to the NPY/AGRP and POMC/ CART neurons, located in the lateral hypothalamic area and in the paraventricular and ventromedial nuclei. We also review these neurons' connections to the corticallimbic pathway (AU)

Reproducción Estacional en el Macho / Seasonal Reproduction in the Male

Hay una sorprendente relación entre el ambiente y adaptaciones de la conducta reproductiva, muy evidente en los reproductores estacionales que pueden reproducirse en días cortos o largos, de acuerdo a factores proximales, especialmente el fotoperiodo luminoso que provoca cambios fotoneuroendocrinos. Estos, involucran fotoreceptores, un reloj biológico y el aparato neuroendocrino. Las gonadotrofinas (GT), el desarrollo gonadal, la retroalimentación negativa de las GT por los esteroides sexuales, la intervención de las fibras retino-hipotalámico y los núcleos supraquiasmáticos así como la secreción de melatonina, intervienen en esta regulación. El pulso generador del hipotálamo (eminencia media) es importante en el control de la adenohipófisis respecto de la secreción de LH y FSH. En el testículo, las endocrinocitos intersticiales (de Leydig) (que secretan testosterona y también estrógenos), establecen un asa de retroalimentación con la adenohipófisis y el hipotálamo en un circuito de asa larga, corta y ultracorta, donde neuronas neuroendocrinas tienen un rol importante. Los sustentocitos (células de Sertoli) (intratubulares) son importantes por su rol mecánico, trófico y metabólico respecto a las células germinales y la secreción de activina e inhibina, que provoca o inhibe la secreción de FSH respectivamente. Los sustentocitos también secretan muchas proteínas específicas entre las cuales se encuentra la proteína que liga andrógenos (ABP), importante porque concentra 100 veces la testosterona en el parénquima testicular. La secreción tónica, por pulsos de GT, especialmente LH, es debida a actividad hipotalámica a través del control de generación de estos pulsos que se inicia en la pubertad. La reproducción en el potro y el toro se presentan como ejemplos.

There is a surprising interrelationship between environments and adaptation of reproductive behaviour, very evident in seasonal breeders; which may reproduce in long or short days, according to proximal factors, mainly the light photoperiod which triggers photoneuroendocrine changes. These involve photoreceptors, a clock and the neuroendocrine apparatus. Gonadotropins (GT), gonadal development, negative feed back of GT done by sexual steroid, the intervention of the retino-hypothalamic fibers, and suprachiasmatics nucleus as well as melatonine secretion, intervene in this regulation. Of importance is the pulse generator of the hypothalamus (medial eminence) and its control of adenohypofisis for the secretion of LH and FSH. In the testis interstitial endocrine cells (Leydig)(secreting testosterone and also estrogens), establish a feed back loop with the adenohypofisis and hypothalamus in a circuit of long, short and ultra short circuit with neuroendocrine neurons playing a key role. Sustentocyte intratubular (Sertoli)are also important for their trophic, mechanic and metabolic relationships with the germ cells, and the secretions of activine and inhibine, which triggers or inhibits FSH secretions respectively. Sustentocyte also secrete many specifics proteins among which ABP (Androgen Binding Protein) is important because it concentrates 100 fold testosterone in the testicular parenchyme. Tonic secretion by pulses of GT, mainly LH, is due to hypothalamic activity with the control generation of these pulses by puberty. Reproduction in the stallion and the bull are presented as examples.

Neuroendocrinology of adrenalcortical tumors: A primary study / 第二军医大学学报

Objective: To investigate the neuroendocrine properties of adrenalcortical tumors. Methods: We retrospectively reviewed the clinical data of 99 adrenalcortical tumor patients, who were treated in Changzheng Hospital form June 1999 to June 2005. Expression of neuron specific enolase (NSE), chromogranin A (CgA) and synaptophysin (Syn) proteins were examined by immunohistochemistry (S-P method) using monoclonal antibodies. The general data of patients, including the age, symptoms, laboratory findings, and pathological types, were collected and subjected to statistical analysis with SAS v6. 12 software. Results: The expression of all the above 3 proteins was found in adrenalcortical adenoma tissues, with the positive rate of NSE being 80%, the positive rate of CgA being 48.9%, and the positive rate of Syn being 75.6%; the positive rates in the adrenalcortical carcinoma tissues were 77.8%, 22.2%, and 77.8%, respectively; and those in the normal adrenal tissues was 20%, 0%, and 10%, respectively. The positive rates of 3 proteins in adrenalcortical tumors was significantly higher than those in the normal adrenal tissues (P

Depressão, cortisol urinário e perfil sócio-demográfico de portadores de diabetes mellitus tipo 2 / Depresion, el cortisol urinario y perfil sociodemografico em portadores de diabetes mellitus tipo 2 / Depression, urinary cortisol and social demographics characteristics in subjects with type 2 diabetes mellitus

O objetivo deste estudo foi investigar a relação entre indicadores de depressão e perfil sócio-demográfico de portadores de Diabetes Mellitus tipo 2 (DM2).A avaliação sócio-demográfica foi conduzida em amostra composta por 40 pacientes na Liga de Diabetes (HC-FMUSP).Os indicadores de depressão foram investigados a partir do Inventário de Depressão de Beck (IBD) em associação com cortisol urinário (CORT).Os resultados mostraram que indivíduos portadores de DM2 com alta escolaridade, baixo poder aquisitivo individual e familiar e com história de rompimento de relação conjugal estável estão mais propensos a sintomas de depressão.

The objective this study was investigate the relationship between depression indicators and social-demographics characteristics in subjects with Type 2 Diabetes Mellitus (DM2). The socio-demographic evaluation was conducted in a sample composed of 40 patients with DM2 from Diabetes League (HCFM-USP).Depression indicators were evaluated through the Beck Depression Inventory (BDI) in addition to urinary cortisol (CORT).The results showed that individuals with high education level,poor individual and familiar economic status in addition to history of broken stable relationship are more likely to depressive symptoms.

Lo objective deste estudo fue investigar la relación entre la depresión y los indicadores de perfil socio-demográfico de los pacientes con diabetes mellitus tipo 2 (DM2). Evaluación socio-demográficos se llevó a cabo en una muestra de 40 pacientes en la Liga de la Diabetes (HC-FMUSP). Indicadores de la depresión se han investigado en el Beck Depression Inventory (BDI),en asociación con el cortisol urinario (CORT).Resultados muestraron que los pacientes con DM2 con alto nivel de educación,las personas de bajos ingresos y familias con historia de interrupción de los matrimonios estables son más propensos a tener síntomas de la depresión.

Correlação entre Inventário de Depressão de Beck e cortisol urinário em diabéticos tipo 2 / Correlación entre el inventario de Depresión de Beck y el cortisol urinario en diabeticos tipo 2 / Correlation between urine cortisol and scores on the Beck Depression inventory in patients with type 2 diabetes

OBJETIVO: Verificar a correlação entre o cortisol urinário e o Inventário de Depressão de Beck em diabéticos do tipo 2. MÉTODOS: O cortisol urinário foi avaliado em uma amostra composta por 40 pacientes da Liga de Controle de Diabetes da Disciplina de Endocrinologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo e para a avaliação dos sintomas de depressão foi aplicado o Inventário de Depressão de Beck. RESULTADOS: Alta confiabilidade para o Inventário de Depressão de Beck(Alfa de Cronbach=0,920)e correlação significativa foi observada entre cortisol urinário e Inventário de Depressão de Beck(Spearman,r=0.523,p<0.001). CONCLUSÕES: Houve correlação entre cortisol urinário e Inventário de Depressão de Beck, demonstrando que estes indicadores são confiáveis na detecção de sintomas de depressão em diabéticos do tipo 2.

OBJECTIVE: To determine the relationship between urinary cortisol and scores on the Beck Depression Inventory in type 2 diabetics. METHODS: The sample consisted of 40 patients with type 2 diabetes from the diabetes control league of the discipline of endocrinology of the HCFM-USP. Measures consisted of urinary cortisol and depression symptoms using the Beck Depression Inventory. RESULTS: The Beck Depression Inventory had a Cronbach's alpha of 0.92. There was a statistically significant correlation between urinary cortisol and scores on the Beck Depression Inventory (Spearman r = 0.52, p < .001). CONCLUSIONS: The Beck Depression Inventory was found to be a reliable indicator of depressive symptoms in patients with type 2 diabetes. Urine cortisol is associated with the presence of depressive symptoms.

OBJETIVO: Verificar la correlación entre el cortisol urinario y el Inventario de Depresión de Beck en diabéticos del tipo 2. MÉTODOS: El cortisol urinario fue evaluado en una muestra compuesta por 40 pacientes de la Liga de Control de Diabetes de la Disciplina de Endocrinología del Hospital de las Clínicas de la Facultad de Medicina de la Universidad de Sao Paulo y para la evaluación de los síntomas de depresión fue aplicado el Inventario de Depresión de Beck. RESULTADOS: Alta confiabilidad para el Inventario de Depresión de Beck(Alfa de Cronbach=0,920) y correlación significativa observada entre el cortisol urinario e Inventario de Depresión de Beck (Spearman,r=0.523,p<0.001). CONCLUSIONES: Hubo correlación entre el cortisol urinario e Inventario de Depresión de Beck, demostrando que estos indicadores son confiables en la detección de síntomas de depresión en diabéticos del tipo 2.

Fatores ambientais, comportamentais e neuroendocrinológicos envolvidos na gênese da epidemia da obesidade: [revisão] / Environmental, comportamental and neuroendocrinological factors involved in obesity epidemic genesis: [review]

A obesidade constitui hoje um preocupante problema de saúde mundial, pois, além de prejudicar o bem estar físico de seu portador, traz consigo comorbidades associadas que aumentam as taxa de morbi-mortalidade. Entre elas incluem-se hipertensão arterial, diabetes mellitus, síndrome da apnéia obstrutiva do sono, osteoartrose, síndrome metabólica e outras. Os recentes avanços alcançados por importantes pesquisas na área molecular conseguiram elucidar grande parte dos mecanismos de controle central do peso corporal, expondo mais um possível sítio para a ação de drogas antiobesidade. A despeito dessas atualidades, o ambiente em que vivemos e determinados comportamentos que seguimos também apresentam forte influência sobre nosso balanço energético e peso corporal, tornando impossível tratar a obesidade por apenas uma frente de ataque. A atividade física e as mudanças no estilo de vida continuam sendo as medidas iniciais da terapêutica e, após estabelecerem-se estas condutas, as recentes descobertas na terapêutica medicamentosa passam a ter valia na tentativa de conter esta epidemia.

Presently the obesity is a serious health problem in the world because, in addition to the damage to the patients, cause co morbidities like hypertension, diabetes mellitus, osteoartrosis, metabolic syndrome, sleep obstructive apnéia syndrome and others increasing the morbid-mortality taxes. The recent findings achieve by important studies in the molecular area obtained succeed in expose a big part of neural control mechanism of body weight, showing another possible place for antiobesity drugs. In the spite of this, some behaviors that we have and the environment where we live also have a big importance in our energy balance and body weight, making impossible to treat the obesity only by one focus. The physical activity and changes in life style are the first step in the therapeutic and, after this, the recent findings in drugs therapeutic start to have value in the tentative of stopping the epidemic of obesity.

Study on the serum concentration changes of hypothalamic-pituitary hormones of patients with acute cerebral hemorrhage / 中国中西医结合急救杂志

Objective: To investigate the high risk factors of occurring the syndrome of cerebral-internal organs in the patients with acute cerebral hemorrhage(ACH).Methods: The serum concentrations of follicle-stimulating hormone(FSH),thyroid-stimulating hormone(TSH) and adrenocorticotrophic hormone(ACTH) were measured by electrochemical radiation in acute period of 37 cases with ACH and 24 cases with cerebral infarction,and compared to those of the 30 healthy controls.The correlations among levels of serum FSH,TSH,ACTH and condition of illness,amount of hemorrhage,critical chamber hemorrhage and the displacement of cerebral mid-line structures were observed.Results: The levels of FSH and TSH were significantly lower,and the levels of ACTH were obviously higher in cases with ACH and cerebral infarction than those of healthy volunteers,and their changes in levels were more obvious in patients with ACH than in patients with cerebral infarction (all P

Neurobiology of Anxiety

The current understanding of the neurobioloby of anxiety is generally based on experimental animal model, empirical effective psychopharmacological agents, chemical and naturalistic challenge paradigms, and psychoendocinological assessment. This article focuses on reviewing neuroanantomical, neuroendocinological and neurofunctional research of anxiety disorder. In the decade ahead, we anticipate that extension of current research and the new integrated approach promise novel insight into mechanism of anxiety.

Circulatory levels of hormones and cytokines in the patients with chronic heart failure and the effect of naftopidil / 中国实用内科杂志

Objective To investigate the circulatory levels of hormones and cytokines in the patients with the chronic heart failure(CHF)and the effect of naftopidil.Methods The levels of tumor necrosis factor-?(TNF-?),interleukin-1(IL-1),interleukin-6(IL-6),endothelin-1(ET-1),adrenomedullin(Adm),neuropeptide Y(NPY),calcitonin gene-related peptide(CGRP),atrial natriuretic peptide(ANP),brain natriuretic peptide(BNP)and C-type natriuretic peptide(CNP),and left ventricular fraction(LVEF)of 47 patients with CHF(CHF group)and 24 healthy subjects(control group)were measured by radioimmunoassay or echocardiography respectively.The patients were randomized to receive naftopidil(50mg Bid)in addition to routine therapy(B group,n=23)or routine therapy only(A group,n=24)for one-month.Results (1)The levels of TNF-?,IL-1,IL-6,ET-1,Adm,NPY,ANP,BNP and CNP of the CHF group were higher(P 0.05)in the levels of IL-1,IL-6,Adm,CNP and LVEF.(4)There were significantly inverse correlations between LVEF and TNF-?,ET-1,IL-6 or BNP(P

Neuroendocrinology of adrenalcortical tumors:a primary study / 第二军医大学学报

Objective:To investigate the neuroendocrine properties of adrenalcortical tumors.Methods: We retrospectively reviewed the clinical data of 99 adrenalcortical tumor patients,who were treated in Changzheng Hospital form June 1999 to June 2005.Expression of neuron specific enolase(NSE),chromogranin A(CgA) and synaptophysin(Syn) proteins were examined by immunohistochemistry(S-P method) using monoclonal antibodies.The general data of patients,including the age,symptoms,laboratory findings,and pathological types,were collected and subjected to statistical analysis with SAS v6.12 software.Results: The expression of all the above 3 proteins was found in adrenalcortical adenoma tissues,with the positive rate of NSE being 80%,the positive rate of CgA being 48.9%,and the positive rate of Syn being 75.6%;the positive rates in the adrenalcortical carcinoma tissues were 77.8%,22.2%,and 77.8%,respectively;and those in the normal adrenal tissues was 20%,0%,and 10%,respectively.The positive rates of 3 proteins in adrenalcortical tumors was significantly higher than those in the normal adrenal tissues(P