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Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
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Infective endocarditis (IE) is a chronic infection of the heart's endocardium, primarily affecting the heart valves. A detailed nursing assessment for a patient with IE involves collecting subjective and objective data to ensure an accurate diagnosis and timely intervention.Subjective DataThe nurse gathers information about the patient's symptoms and complaints during the subjective assessment. Patients with infective endocarditis often report non-specific symptoms that can mimic other...
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Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...
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A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
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The signs and symptoms of fever include hot and dry skin, flushed face, thirst, muscle aches, anorexia, headache, tachycardia, tachypnea, and fatigue. Elevated body temperature is reduced using two methods: pharmacological and nonpharmacological. Proper identification and treatment of the root cause of a fever is of utmost importance.
Pharmacological Methods of Reducing Fever:
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Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
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La percepción olfativa: receptores, células y circuitos.

Chih-Ying Su1, Karen Menuz, John R Carlson

  • 1Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06520, USA.

Cell
|October 7, 2009
PubMed
Resumen

Descubrimientos recientes revelan nuevos mecanismos y principios en la percepción olfativa. Esta discusión cubre ideas clave sobre los receptores, las células y los circuitos que rigen el sentido del olfato.

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Área de la Ciencia:

  • La neurociencia es la neurociencia.
  • Biología Sensorial Biología Sensorial

Sus antecedentes:

  • La percepción olfativa es un proceso sensorial complejo.
  • Comprender el sentido del olfato es crucial para varias funciones biológicas.

Objetivo del estudio:

  • Para resumir los avances recientes en la percepción olfativa.
  • Para proporcionar una visión de las bases moleculares y neuronales del olfato.

Principales métodos:

  • Revisión de la literatura de la investigación reciente en la señalización y el procesamiento olfativo.
  • Síntesis de los hallazgos sobre los receptores olfativos, las células y los circuitos neuronales.

Principales resultados:

  • Identificación de nuevas vías de señalización olfativa.
  • Elucidación de los nuevos principios que rigen el procesamiento de la información olfativa.
  • Caracterización de los receptores, células y circuitos involucrados en el olfato.

Conclusiones:

  • Se han logrado avances significativos en la comprensión de la percepción olfativa.
  • La investigación futura probablemente se basará en estos mecanismos y principios recién descubiertos.