• 제목/요약/키워드: Midbrain

검색결과 153건 처리시간 0.024초

Neurobiological Functions of the Period Circadian Clock 2 Gene, Per2

  • Kim, Mikyung;Pena, June Bryan de la;Cheong, Jae Hoon;Kim, Hee Jin
    • Biomolecules & Therapeutics
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    • 제26권4호
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    • pp.358-367
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    • 2018
  • Most organisms have adapted to a circadian rhythm that follows a roughly 24-hour cycle, which is modulated by both internal (clock-related genes) and external (environment) factors. In such organisms, the central nervous system (CNS) is influenced by the circadian rhythm of individual cells. Furthermore, the period circadian clock 2 (Per2) gene is an important component of the circadian clock, which modulates the circadian rhythm. Per2 is mainly expressed in the suprachiasmatic nucleus (SCN) of the hypothalamus as well as other brain areas, including the midbrain and forebrain. This indicates that Per2 may affect various neurobiological activities such as sleeping, depression, and addiction. In this review, we focus on the neurobiological functions of Per2, which could help to better understand its roles in the CNS.

다발성 경화증의 물리치료 (Physical Therapy for Multiple Sclerosis)

  • 김영민
    • 대한물리치료과학회지
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    • 제2권2호
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    • pp.533-544
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    • 1995
  • Multiple sclerosis is a chronic, pregressive, demyelinating, disease of the central nervous system. It is named for the formation of disseminated scarlike lesions primarily in the central white mattrer of the brain and spinal cord. These plaques are commonly found in the regions of the optic tracts, third and fourth ventricles, basal ganglia, midbrain, pons, and spinal cord. Multiple sclerosis is an unpredictable disease, typically presenting with an exacerbating-remitting course, although other clinical courses have been recognized. Common clinical findings include disturbances in sensation, muscle strength, tone, fatigue, coordination, vision, communication, bladder and bowel function, and cognitive and behavioral function. Physical therapy of the patient with multiple sclerosis is centered around decreasing symptoms, improving function, prevention secondary complications, and promoting successful psychological adjustment. It requires the comprehensive efforts of a health care team to provide coordinated and continuing care.

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The Activity of Dopamine $\beta$-Hydroxylase of Central Nervous System in Genetically Epilepsy Prone Rats

  • Park, Youn-Joo;Chung, Hye-Joo;Lee, Kwang-Ho;Ko, Kwang-Ho
    • Archives of Pharmacal Research
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    • 제14권2호
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    • pp.172-175
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    • 1991
  • Abnormality in the central noradrenergic system may be related to the seizure prone state in the genetically epilepsy prone rats (GEPR). The present work deals with the characterization of the deficit in noradrenergic system if susceptitibility and intensity of seizure are dependent on central noradrenregic activities by comparing the activities of dopamine $\beta$-hydroxylase (DBH) which hydroxylates dopamine into noradrenaline. DBH activities were measured in 5 areas of brain of normal rats, native GEPR and severe GEPR. The results suggest that lower DBH activities in the midbrain of GEPRs may positively be coupled to the susceptibility to seizure, whereas the same characteristics of the native or severe GEPR are not neccessarily in parallel with the intensity of seizure.

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STUDY ON THE DEVELOPMENTAL TOXICITY OF THIMEROSAL

  • Kwack, Seung-Jun;Rhee, Gyu-Seek;Kim, Soon-Sun;Kim, So-Hee;Sohn, Kyung-Hee;Chae, Soo-Young;Park, Yo-Woo;Park, Kui-Lea
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2002년도 Current Trends in Toxicological Sciences
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    • pp.71-72
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    • 2002
  • Thimerosal is a mercury-containing compound used in trace amounts to prevent bacteria and other organisms from contaminating vaccines, especially in opened multi-dose vials. The toxicity of mercury is well known and those most at risk are occurred in unborn and newborn babies.(omitted)

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당뇨병이 없는 알코올중독 환자에서 광범위한 뇌병변을 보인 저혈당성 뇌병증 1예 (A Case of Severe Hypoglycemic Encephalopathy with Extensive Brain Lesions in Non-diabetics and Alcoholism)

  • 빈창훈;박민수;이세진
    • Journal of Yeungnam Medical Science
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    • 제27권1호
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    • pp.37-41
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    • 2010
  • Hypoglycemic encephalopathy is a rare problem among diabetic patients who are receiving treatment with insulin or other glucose-lowering drugs. The MRIs of patients with hypoglycemic encephalopathy commonly show scattered lesions in the cerebral cortex, hippocampus and basal ganglia, but lesions in the cerebellum or brain stem are extremely rare. A 44-year-old alcoholic woman without diabetes was admitted with a semicomatose mentality and seizure with severe hypoglycemic encephalopathy with extensive brain lesions seen on MRI at the middle cerebellar peduncle and midbrain, as well as in the other brain areas.

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Acupuncture를 이용한 하악골 골절수술경험 -증례 보고- (The Experience of Open Reduction and Internal Fixation of Mandible Fracture by Acupuncture Method)

  • 길홍모;곽호성;노식
    • The Korean Journal of Pain
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    • 제9권1호
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    • pp.195-199
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    • 1996
  • Based on points of neuroendocrine physiology, stimulus developed at the acupuncture site can pass to the pituitary gland through somatosensory and activated descending inhibitory mechanism which originated in raphe magnus of midbrain. For the operation of mandible fracture, acupuncture anesthesia was performed at 6 points of both forearm and both feet by method taking point on distant segment. Acupuncture anesthesia deals with central analgesic mechanism and the theory of diffuse noxious inhibitory control.

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경부 경막외 차단을 이용한 연속성 딸꾹질의 치험 3예 -증례 보고- (Persistent Hiccups Treatment with Cervical Epidural Block -Case reports-)

  • 이지향;김종일;민병우
    • The Korean Journal of Pain
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    • 제10권2호
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    • pp.241-245
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    • 1997
  • Persistent hiccup is defined as duration lasting longer than 48 hours. Reflex arc of hiccup is divided into three parts : afferent, central, efferent. Afferent portion of the neural pathway of hiccup formation is composed of vagus nerve, phrenic nerve, and sympathetic chain arising from T6 to T12. Efferent limb is phrenic nerve. Hiccup center is located in brain stem, midbrain, reticular system and hypothalamus. Persistent hiccup is very difficult to treat by conventional methods. We performed cervical epidural block of the phrenic nerve root for three patients suffering from persistent hiccup. The therapeutic effect was perfect. The mechanism of the cervical epidural block is not yet defined however it is thought to block the efferent nerve fibers and suppress the reflex arc of hiccup. We conclude cervical epidural block is relatively safe and very effective for treating persistent hiccup.

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STUDY ON THE DEVELOPMENTAL TOXICITY OF THIMEROSAL

  • Kwack, Seung-Jun;Rhee, Gyu-Seek;Kim, Soon-Sun;Kim, So-Hee;Sohn, Kyung-Hee;Chae, Soo-Young;Choi, Yo-Woo;Park, Kui-Lea
    • 한국환경성돌연변이발암원학회:학술대회논문집
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    • 한국환경성돌연변이발암원학회 2002년도 Current Trends in Toxicological Sciences
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    • pp.71-72
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    • 2002
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Ramsay Hunt Syndrome Complicated by Meningoencephalitis and Radiologic findings: a Rare Case Report

  • Lee, Youdae;Lee, Donghoon
    • Investigative Magnetic Resonance Imaging
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    • 제23권1호
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    • pp.65-69
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    • 2019
  • Ramsay Hunt syndrome with the complication of encephalitis or meningoencephalitis is rarely reported and uncommon in immunocompetent patients. The radiological manifestations of such cases usually involve the cerebellum and brainstem or exhibit the absence of any abnormality. We report a case of a 78-year-old immunocompetent man hospitalized with Ramsay Hunt syndrome, who later developed meningoencephalitis. The cerebrospinal fluid-study excluded other causes of meningoencephalitis, and the clinical diagnosis indicated varicella zoster virus meningoencephalitis. Magnetic resonance imaging revealed increased signal intensities in the bilateral temporal lobe, midbrain, and pons on T2-weighted imaging, and T2 fluid attenuated inversion recovery and contralateral asymmetric pachymeningeal enhancement. Contrast-enhanced T1-weighted imaging revealed ipsilateral facial nerve enhancement.