Suicide is defined as the act of a person attempting to take their own life by causing death.Suicide is a complex phenomenon that is influenced by a multitude of factors,including psychosocial,cultural,and religious a...Suicide is defined as the act of a person attempting to take their own life by causing death.Suicide is a complex phenomenon that is influenced by a multitude of factors,including psychosocial,cultural,and religious aspects,as well as genetic,biochemical,and environmental factors.From a biochemical perspective,it is crucial to consider the communication between the endocrine,immune,and nervous systems when studying the etiology of suicide.Several pathologies involve the bidirectional communication between the peripheral activity and the central nervous system by the action of molecules such as cytokines,hormones,and neurotransmitters.These humoral signals,when present in optimal quantities,are responsible for maintaining physiological homeostasis,including mood states.Stress elevates the cortisol and proinflammatory cytokines levels and alter neurotransmitters balance,thereby increasing the risk of developing a psychiatric disorder and subsequently the risk of suicidal behavior.This review provides an integrative perspective about the neurochemical,immunological,and endocrinological disturbances associated with suicidal behavior,with a particular focus on those alterations that may serve as potential risk markers and/or indicators of the state preceding such a tragic act.展开更多
In order to describe the magnetic resonance imaging (MRI) findings in hypothalamic-pituitary area and its clinical relevance in patients with idiopathic growth hormone deficiency (IGHD), the MR imagings of 26 patients...In order to describe the magnetic resonance imaging (MRI) findings in hypothalamic-pituitary area and its clinical relevance in patients with idiopathic growth hormone deficiency (IGHD), the MR imagings of 26 patients with IGHD were analyzed. On MRI, 24 out of 26 cases (92. 3%) showed apparent pituitary upper margin depression; 8 out of 26 cases (30. 8%) showed definite pituitary stalk transection; 22 out of 26 cases (84. 6%) showed absence of the normal posterior pituitary bright spot. The bright lipidlike signal on T1W1 images at the median eminence distal to the breaking point (so-called ectopic posterior lobe) was found in 4 out of 26 cases (15. 4%). According to the MRI findings of the pituitary stalks, the 26 cases were divided into three groups; group A of 8 cases (31%) characterized by the definite transaction of stalk; group B of 13 cases (50%) defined by the possible stalk transection; and group C of 5 cases (19%) with no definite stalk transection.MRI findings were consistent with the clinical and endocrine tests. The stalk transection was statistically significantly difference in insulin test, L-dopa/p test, and height standard deviation score (P< 0.05). The MRI of hypothalamic-pituitary area may differentiate partial IGHD form stalk-transected, doubtful transection and without transection.展开更多
Hypothalamic-pituitary functions in 26 cases of Turner syndrome were assessed with a combined stimulation test.The results showed that the peak GH levels of 12 cases were less than 10 μg/L; 3 patients were demonstrat...Hypothalamic-pituitary functions in 26 cases of Turner syndrome were assessed with a combined stimulation test.The results showed that the peak GH levels of 12 cases were less than 10 μg/L; 3 patients were demonstrated as having an even TSH response, while another one with a delayed TSH peak, and other 4 had high basal values and consistent exaggerated TSH responses to TRH; all patients showed increased basal and peak LH and FSH levels but 5, whose LH and FSH secretion patterns were similar to normal. 12 cases have been treated with individualized protocols and followed up for 12 months or more, of them the growth velocity all increased, especially those with hypothyroidism or with a BA less than 13. It is suggested that multiple functions of hypothalamic-pituitary axis in Turner patients be evaluated as early as possible, in order that proper treatment could be adopted and their growth and development improved.展开更多
The authors describe the clinical presentation of a 59-year old woman in the emergency room, with agitation, confusion and hypothermia. She was previously diagnosed with hypothalamic-pituitary insufficiency with compl...The authors describe the clinical presentation of a 59-year old woman in the emergency room, with agitation, confusion and hypothermia. She was previously diagnosed with hypothalamic-pituitary insufficiency with complete dysfunction of the pituitary gland, poikilothermia and central diabetes insipidus, treated with hormone supplements. In the emergency room, she showed a dysregulation in temperature, altered mental status and hyponatremia. The differential diagnosis was hypothermia based on infection with the history of poikilothermia, with dysregulation of her diabetes insipidus. Poikilothermia is an extremely rare condition in humans in which the body temperature variates with the surrounding temperature. Dysregulation may develop due to different causes.展开更多
基金Supported by CONAHCYT Project,No.CF-2023-I-2663Instituto Nacional de Psiquiatría Project,No.NC24208.0(to Pérez-Sánchez G,Pavón L,Sánchez-Huerta K,Maldonado-García JL,Chin-Chan JM,Ponce-Regalado MD,Arreola R,Contis-Montes de Oca A,and Moreno-Lafont MC).
文摘Suicide is defined as the act of a person attempting to take their own life by causing death.Suicide is a complex phenomenon that is influenced by a multitude of factors,including psychosocial,cultural,and religious aspects,as well as genetic,biochemical,and environmental factors.From a biochemical perspective,it is crucial to consider the communication between the endocrine,immune,and nervous systems when studying the etiology of suicide.Several pathologies involve the bidirectional communication between the peripheral activity and the central nervous system by the action of molecules such as cytokines,hormones,and neurotransmitters.These humoral signals,when present in optimal quantities,are responsible for maintaining physiological homeostasis,including mood states.Stress elevates the cortisol and proinflammatory cytokines levels and alter neurotransmitters balance,thereby increasing the risk of developing a psychiatric disorder and subsequently the risk of suicidal behavior.This review provides an integrative perspective about the neurochemical,immunological,and endocrinological disturbances associated with suicidal behavior,with a particular focus on those alterations that may serve as potential risk markers and/or indicators of the state preceding such a tragic act.
文摘In order to describe the magnetic resonance imaging (MRI) findings in hypothalamic-pituitary area and its clinical relevance in patients with idiopathic growth hormone deficiency (IGHD), the MR imagings of 26 patients with IGHD were analyzed. On MRI, 24 out of 26 cases (92. 3%) showed apparent pituitary upper margin depression; 8 out of 26 cases (30. 8%) showed definite pituitary stalk transection; 22 out of 26 cases (84. 6%) showed absence of the normal posterior pituitary bright spot. The bright lipidlike signal on T1W1 images at the median eminence distal to the breaking point (so-called ectopic posterior lobe) was found in 4 out of 26 cases (15. 4%). According to the MRI findings of the pituitary stalks, the 26 cases were divided into three groups; group A of 8 cases (31%) characterized by the definite transaction of stalk; group B of 13 cases (50%) defined by the possible stalk transection; and group C of 5 cases (19%) with no definite stalk transection.MRI findings were consistent with the clinical and endocrine tests. The stalk transection was statistically significantly difference in insulin test, L-dopa/p test, and height standard deviation score (P< 0.05). The MRI of hypothalamic-pituitary area may differentiate partial IGHD form stalk-transected, doubtful transection and without transection.
文摘Hypothalamic-pituitary functions in 26 cases of Turner syndrome were assessed with a combined stimulation test.The results showed that the peak GH levels of 12 cases were less than 10 μg/L; 3 patients were demonstrated as having an even TSH response, while another one with a delayed TSH peak, and other 4 had high basal values and consistent exaggerated TSH responses to TRH; all patients showed increased basal and peak LH and FSH levels but 5, whose LH and FSH secretion patterns were similar to normal. 12 cases have been treated with individualized protocols and followed up for 12 months or more, of them the growth velocity all increased, especially those with hypothyroidism or with a BA less than 13. It is suggested that multiple functions of hypothalamic-pituitary axis in Turner patients be evaluated as early as possible, in order that proper treatment could be adopted and their growth and development improved.
文摘The authors describe the clinical presentation of a 59-year old woman in the emergency room, with agitation, confusion and hypothermia. She was previously diagnosed with hypothalamic-pituitary insufficiency with complete dysfunction of the pituitary gland, poikilothermia and central diabetes insipidus, treated with hormone supplements. In the emergency room, she showed a dysregulation in temperature, altered mental status and hyponatremia. The differential diagnosis was hypothermia based on infection with the history of poikilothermia, with dysregulation of her diabetes insipidus. Poikilothermia is an extremely rare condition in humans in which the body temperature variates with the surrounding temperature. Dysregulation may develop due to different causes.
