• 제목/요약/키워드: neuroscience

검색결과 897건 처리시간 0.022초

한의 복합 치료를 통해 시야결손에 개선을 보인 후대뇌동맥 폐색에 의한 뇌경색증 환자 1례에 대한 증례 보고 (A Case Report of a Homonymous Hemianopsia in a Stroke Patient Treated with Traditional Korean Medical Treatment)

  • 추홍민;김철현;이영웅;김광호;문연주;신혜령;안재윤;성강경;이상관
    • 대한한방내과학회지
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    • 제40권5호
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    • pp.797-803
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    • 2019
  • Introduction: The aim of this study was to report the effect of Korean medicine treatments on a stroke patient with homonymous hemianopsia. Case Presentation: A 50-year-old male with a posterior cerebral artery infarction had continuously deteriorating symptoms of right homonymous hemianopsia, fatigue, dizziness, and light sensitivity. Treatment with Korean medicine therapy, including acupuncture and herbal medicine significantly improved the patient's symptoms. The result of a visual field test (VFI) was also improved after treatment, and no side effects were observed during treatment. Conclusion: Korean medicine treatment can be considered an effective treatment for homonymous hemianopsia in stroke patients.

Kir4.1 is coexpressed with stemness markers in activated astrocytes in the injured brain and a Kir4.1 inhibitor BaCl2 negatively regulates neurosphere formation in culture

  • Kwon, Jae-Kyung;Choi, Dong-Joo;Yang, Haijie;Ko, Dong Wan;Jou, Ilo;Park, Sang Myun;Joe, Eun-Hye
    • The Korean Journal of Physiology and Pharmacology
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    • 제25권6호
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    • pp.565-574
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    • 2021
  • Astrocytes are activated in response to brain damage. Here, we found that expression of Kir4.1, a major potassium channel in astrocytes, is increased in activated astrocytes in the injured brain together with upregulation of the neural stem cell markers, Sox2 and Nestin. Expression of Kir4.1 was also increased together with that of Nestin and Sox2 in neurospheres formed from dissociated P7 mouse brains. Using the Kir4.1 blocker BaCl2 to determine whether Kir4.1 is involved in acquisition of stemness, we found that inhibition of Kir4.1 activity caused a concentration-dependent increase in sphere size and Sox2 levels, but had little effect on Nestin levels. Moreover, induction of differentiation of cultured neural stem cells by withdrawing epidermal growth factor and fibroblast growth factor from the culture medium caused a sharp initial increase in Kir4.1 expression followed by a decrease, whereas Sox2 and Nestin levels continuously decreased. Inhibition of Kir4.1 had no effect on expression levels of Sox2 or Nestin, or the astrocyte and neuron markers glial fibrillary acidic protein and β-tubulin III, respectively. Taken together, these results indicate that Kir4.1 may control gain of stemness but not differentiation of stem cells.

인진오령산 투여가 상승된 간화학 수치에 미치는 영향 : 후향적 차트 리뷰 (Effect of Injinoryung-san Administration on the Elevated Hepatic Function Test Level: Retrospective Chart Review)

  • 추홍민;신혜령;문연주;김철현;김광호;이영웅;류호선;성강경;이상관
    • 대한한방내과학회지
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    • 제40권3호
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    • pp.478-490
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    • 2019
  • Purpose: This work is a retrospective clinical case study evaluating the efficacy of Injinoryung-san granule administration to patients who showed an abnormal hepatic function test level. Methods: We analyzed the chart records of seven patients with elevated levels of the hepatic function test treated with Injinoryung-san granules. Results: The patients who were treated with Injinoryung-san showed a significant improvement in their elevated hepatic function test levels. Conclusion: In patients with elevated hepatic function test levels, Injinoryung-san granules can improve the hepatic level without adverse effects or changes in existing drugs.

Autism-Like Behavioral Phenotypes in Mice Treated with Systemic N-Methyl-D-Aspartate

  • Adil, Keremkleroo Jym;Gonzales, Edson Luck;Remonde, Chilly Gay;Boo, Kyung-Jun;Jeon, Se Jin;Shin, Chan Young
    • Biomolecules & Therapeutics
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    • 제30권3호
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    • pp.232-237
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    • 2022
  • Autism spectrum disorder (ASD) having core characteristics of social interaction problems and repetitive behaviors and interests affects individuals at varying degrees and comorbidities, making it difficult to determine the precise etiology underlying the symptoms. Given its heterogeneity, ASD is difficult to treat and the development of therapeutics is slow due to the scarcity of animal models that are easy to produce and screen with. Based on the theory of excitation/inhibition imbalance in the brain with ASD which involves glutamatergic and/or GABAergic neurotransmission, a pharmacologic agent to modulate these receptors might be a good starting point for modeling. N-methyl-D-aspartic acid (NMDA) is an amino acid derivative acting as a specific agonist at the NMDA receptor and therefore imitates the action of the neurotransmitter glutamate on that receptor. In contrast to glutamate, NMDA selectively binds to and regulates the NMDA receptor, but not other glutamate receptors such as AMPA and kainite receptors. Given this role, we aimed to determine whether NMDA administration could result in autistic-like behavior in adolescent mice. Both male and female mice were treated with saline or NMDA (50 and 75 mg/kg) and were tested on various behavior experiments. Interestingly, acute NMDA-treated mice showed social deficits and repetitive behavior similar to ASD phenotypes. These results support the excitation/inhibition imbalance theory of ASD and that NMDA injection can be used as a pharmacologic model of ASD-like behaviors.

Four Case Reports on Treatment of elevated aminotransferase levels with Herbal medicine containing Artemisia capillaris as Principal Component

  • Chu, Hongmin;Kim, Cheol-Hyun;Kim, Kwang-ho;Lee, Young-ung;Sung, Kang-keyng;Lee, Sang-kwan
    • 대한한의학회지
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    • 제42권3호
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    • pp.165-175
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    • 2021
  • Background: Many herbal medications have been used to treat various liver diseases. But the concerns of herbal medicine induced liver injury also existed. In this respect, we would like to report several cases with imporved elevated liver aminotransferase after treating herbal medicine including Artemisia capillaris. Case Reports: We report four patients with elevated aminotransferase levels (ATLs), which indicate hepatocellular damages. After receiving herbal medicines therapy containing Artemisia capillaris as principal component (HMA), the patients' ATLs were improved. In the first case, the patient's ATLs decreased into normal range after administration of HMA, although they have not been improved with hepatotonics for a long period. In the second case, the patient's ATLs have been elevated after taking anticoagulants. The ATLs were improved with HMA without stopping anticoagulants. In the other two cases, the patients' ATLs were also improved after taking HMA. In addition, there were no changes of previous drugs for treating the corresponding underlying diseases and no adverse events during HMA applications. Result and Conclusion: The four patients received the herbal medicine containing Artemisia capillaris as principal component and showed improvement of ATLs. These cases suggest that HMA can be considered as alternative or complementary remedies to improve various liver diseases.

Standardized Extract (HemoHIM) Ameliorated High Intensity Exercise Induced Fatigue in Mice

  • Lee, Hyun Jun;Kim, Sang Back;Boo, Kyung Jun;Ortiz, Darlene Mae;Sayson, Leandro Val;Custodio, Raly James Perez;Cheong, Jae Hoon;Kim, Seul Ki;Kim, Mikyung;Kim, Hee Jin
    • Natural Product Sciences
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    • 제28권2호
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    • pp.68-74
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    • 2022
  • HemoHIM was used as a Korean traditional medicine for anti-inflammatory and antioxidant effects. However, there is no study on the effect of HemoHIM on fatigue. We examined the potential use of HemoHIM to determine whether it can induce anti-fatigue effects. Mice were administered with HemoHIM and VEH for 14 days. On the last day of treatment, mice were subjected to behavioral tests. Subsequently, their plasma and muscle were collected after the treadmill test to measure lactate, lactate dehydrogenase (LDH), ammonia, corticosterone, glycogen, and creatine kinase (CK). We found that HemoHIM moderately increased the running time (s) in the treadmill and mobility duration in the cold swimming tests. In addition, the VEH group showed a significant increase in lactate, LDH, and corticosterone levels in the plasma compared to the group that did not perform the test. However, this was moderately reduced in HemoHIM treatment. Moreover, the HemoHIM-treated group showed significant differences in LDH and glycogen levels, and showed significantly different CK levels in the muscle. HemoHIM is considered to be effective in improving fatigue, given the duration of cold swimming or running time on a treadmill. Also, HemoHIM treatment resulted in reduced concentrations of blood and muscle parameter analysis.

뇌졸중 환자의 단하지 보조기 착용 유무에 따른 보행 양상의 변화 (Change of gait pattern by ankle foot orthosis in stroke patients with foot drop)

  • 오재건;박기언;정병준;이일석;최산호;이상관;성강경
    • 대한중풍순환신경학회지
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    • 제14권1호
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    • pp.40-48
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    • 2013
  • ■ Objectives This study was designed to investigate the effects of an ankle foot orthosis(AFO) on gait of two hemiparetic stroke patients with foot drop. ■ Methods Gait of two hemiparetic stroke patients were analyzed during walking on the treadmill without or with AFO application. The spatiotemporal and center of pressure(CoP) intersection parameters of gait analysis were measured using a treadmill gait analysis system. ■ Results The AFO had positive effects on hemiparetic gait parameters; increasing cadence, increasing step length, decreasing step time, stride time, and lateral symmetry. ■ Conclusion Hemiparetic gait was improved by ankle foot orthosis.

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뇌졸중 환자에서 보행의 시공간적 특징 (Spatiotemporal characteristics of stroke patients gait)

  • 이상관;최산호;오재건;이일석;박기언;홍해진;성강경
    • 대한중풍순환신경학회지
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    • 제14권1호
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    • pp.1-7
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    • 2013
  • The following study reviewed the walking patterns of stroke patients with hemiplegia, which is called hemiplegic gait of stroke patients. Focusing is given to the changes in the distance and temporal factors of walking, which is called spatiotemporal characteristics, throughout the walking cycle. First, we introduced the definitions of essential terms related to gait and its measure. Second, we reviewed the spatiotemporal characteristics of hemiplegic gait. A main issue was that hemiplegic gait showed significant deviations from normal healthy gait. Although hemiplegia is primarily associated with unilateral motor disorder, changes in almost all spatiotemporal parameters used to assess walking were evident on both the involved and uninvolved sides of the body. Last, we reviewed the changes of spatiotemporal parameters of hemiplegic gait according to the prognosis or status of stroke patients, which may help to give a specific intervention for rehabilitation of stroke.

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파킨슨환자의 보행 속도에 따른 보행 양상 변화 (The change of gait pattern according to different walking speeds in a patient with Parkinson disease)

  • 오재건;박기언;정병준;이일석;최산호;이상관;성강경
    • 대한중풍순환신경학회지
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    • 제14권1호
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    • pp.90-101
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    • 2013
  • ■ Objectives The goal of this study was to observe the gait patterns from a patient with Parkinson disease under three different walking speeds. ■ Methods The patient walked on a treadmill and we measured gait parameters using a treadmill gait analysis system for 2 minutes. The Parkinson patients walked under three different conditions, first, at the preferred walking speed, second, at slower speed than the preferred walking speed, and, third, at faster speed than the preferred walking speed. ■ Results In terms of temporal gait parameters, as speed of treadmill increased, stance phase and total double support decreased, and swing phase increased. In terms of spatial parameters, as speed of treadmill increased, step and stride length increased. In terms of kinetic parameters, max pressure increased as speed of treadmill increased. ■ Conclusion According to different walking speeds, some gait parameters of spatiotemporal and kinetic was changed.

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편두통 환자의 임상 양상 및 생체전기 자율반응과의 상관성 고찰 (The clinical manifestation of migraine and correlation study with autonomic bioelectric response)

  • 이현종;정인태;김수영;이두익;김건식;이재동;이윤호;최도영
    • Journal of Acupuncture Research
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    • 제21권3호
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    • pp.215-229
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    • 2004
  • Objective : We had a clinical report in headache but didn't in migraine. We have planned this study in order to get the basic data of migraine in oriental medicine. Methods : The patient of 36 in migraine checked sex, age, onset, family history, severity of pain, influences of life, induced cause, clinical pain characteristics, associated symptom, treatment style, and prescription, frequency, using period of analgesics by a questionnaire and differentiated syndromes in migraine and evaluated autonomic bioelectric response recorder(ABR-2000). Results : There are 23.4% in prevalence rate of migraine. The ratio of sex is M:F=1:17. The age of an attack is the highest in thirties. The patient are the most in forties. The mean duration of illness is $12.0{\pm}9.9$ years. 83.4% had a family history. 61.1% had a moderate grade in severity of pain. 77.8% selected fatigue in induced cause of migraine. 69.4% had tingling sense, nausea and vomiting in the associated symptoms. 91.7% used analgesics for treatment and 51.5% of them used analgesics voluntarily. 61.9% of them take analgesics less than once in a week. 33.6% had the phlegm syncope headache in differentiation of syndrome. In ABR-2000 results, item of graph showed low tendency mostly. Conclusions : We expected that this report of clinical progress, differentiation of syndromes and ABR-2000 results in migraine would be used basic data by oriental medicine to treat migraine.

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