• Korean Journal of Acupuncture
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• 제38권2호
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• pp.75-99
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• 2021

Objectives : The purpose of this study is to analyze animal behavioral changes and related neurobiological mechanisms in recent studies using animal models with pain and depression. Methods : We conducted database search in Pubmed, NDSL, and EMBASE up to January 2021. Included studies were classified as depression-like behavior observed in pain model, pain-like behavior observed in depression model, and pain and depression comorbidity model. The results of pain- and depression-like behaviors, the changes of neurobiological mechanisms, and the treatment methods such as drugs, natural substance-derived chemicals, or acupuncture were analyzed. Results : We included 124 studies (81 studies in depression-like behavior observed in pain model, 19 studies in pain-like behavior observed in depression model, and 24 studies in pain and depression comorbidity model). Pain and depression comorbidity animal models were induced using various methods by drugs or surgery. Von frey test, a method for evaluating mechanical allodynia was the most commonly used for measuring pain-like behavior and the forced swimming test was the most commonly used for measuring depression-likes behavior. The changes of neurobiological factors, such as decrease of 5-hydroxytryptamine and increase of oxidative stress and pro-inflammation cytokines were generally changed in the frontal cortex, hippocampus, thalamus, and spinal cord in all types of models. For treating pain and depression-like behaviors, various types of drugs such as antidepressant, tranquilizer, analgesic, and natural substance-derived chemicals were used. Acupuncture treatment was used in 4 studies. Conclusions : In the future, more diverse studies on the combined model of pain and depression need to be conducted. In addition, it is necessary to establish a mechanistic basis for the development of various treatments by identifying the common mechanisms of pain and depression.

• The Korean Journal of Pain
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• 제37권2호
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• pp.91-106
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• 2024

The mechanisms of the chronic pain and depression comorbidity have gained significant attention in recent years. The complement system, widely involved in central nervous system diseases and mediating non-specific immune mechanisms in the body, remains incompletely understood in its involvement in the comorbidity mechanisms of chronic pain and depression. This review aims to consolidate the findings from recent studies on the complement system in chronic pain and depression, proposing that it may serve as a promising shared therapeutic target for both conditions. Complement proteins C1q, C3, C5, as well as their cleavage products C3a and C5a, along with the associated receptors C3aR, CR3, and C5aR, are believed to have significant implications in the comorbid mechanism. The primary potential mechanisms encompass the involvement of the complement cascade C1q/C3-CR3 in the activation of microglia and synaptic pruning in the amygdala and hippocampus, the role of complement cascade C3/C3a-C3aR in the interaction between astrocytes and microglia, leading to synaptic pruning, and the C3a-C3aR axis and C5a-C5aR axis to trigger inflammation within the central nervous system. We focus on studies on the role of the complement system in the comorbid mechanisms of chronic pain and depression.

• Korean Journal of Acupuncture
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• 제41권3호
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• pp.79-89
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• 2024

Objectives : We aimed to identify the effects of acupuncture treatment on alleviating pain and depression and modulating brain neural activity in the neuropathic pain and depression comorbidity mouse model (PDCM). Methods : We performed partial sciatic nerve ligation on the right hind paw of mice to induce neuropathic pain and injected reserpine (2 mg/kg, intraperitoneal) for 10 days from the day of the surgery to induce pain and depression. Acupuncture treatment was performed for 10 days at the following locations: 1) ST36 and SP6 (Joksamni and Sameumgyo; JS), 2) KI1 and HT7 (Yongcheon and Sinmun; YS), 3) LR1, PC9, KI10, and PC3 (Pericardium tonification; PT), or 4) LR1, HT9, KI10, and HT3 (Heart tonification; HT). Pain-like behavior was measured using the von Frey test and depressive-like behavior was assessed using the open field test. Then, the c-Fos expression was analyzed in the brain regions of neocortex, striatum, hypothalamus, hippocampus, midbrain, and medulla to examine brain neural activity. Results : In PDCM, pain-like behavior was alleviated by acupuncture treatment on the JS, YS, PT, and HT, and depressive-like behavior was improved by acupuncture treatment on the JS and YS. JS and YS were derived as an optimized acupoint combination for improving neuropathic pain and depression comorbidity. Brain neural activities in the neocortex (infralimbic cortex) and hypothalamus (paraventricular hypothalamic nucleus; PVN) were commonly altered by both JS and YS acupuncture treatments. In addition, neural activities in the neocortex (prelimbic cortex; PrL) and midbrain (substantia nigra, lateral part of the dorsal raphe nucleus) were altered exclusively by JS acupuncture treatment, while changes in the area 2 of the anterior cingulate cortex and the cornu ammonis 3 of the hippocampus were specific to YS acupuncture treatment. Brain neural activity in the PrL and PVN regions was significantly correlated with changes in pain behavior. Conclusions : Both JS and YS acupuncture treatments alleviated pain and depressive-like behaviors, which were associated with modulation of neural activities in the neocortex, hypothalamus, hippocampus, and midbrain.

• 셀메드
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• 제2권2호
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• pp.15.1-15.3
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• 2012

Kampo medicine, a Japanese traditional herbal medicine, has been used in clinical practice in Japan. The most appropriate Kampo formula should be chosen for each individual by the four diagnostic procedures. Fuku shin, the abdominal exam, is one of the most important approaches in the procedures. There are several abdominal conformations (signs) when administering Fuku shin. In Kampo medicine, psychiatric illness-marked by depression and anxiety-has been shown to be related with an abdominal conformation, Shin ka hi koh (Epigastric Obstructive Hardness). The aim was to see the occurrence of abdominal conformations in each level of depression and anxiety symptoms. Two hundred fifteen patients were assigned to high-, moderate-, or low-level psychiatric comorbidity based on the Hospital Anxiety and Depression Scale and were studied regarding the occurrence of major abdominal conformations. Moderate and high psychopathological groups showed the higher occurrence of Shin ka hi koh [Low, 21%; Moderate, 67%; High, 74%] ($p$ < 0.0001). In conclusion, moderate and high psychopathological patients showed the higher occurrence of a specific abdominal sign.

• The Korean Journal of Physiology and Pharmacology
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• 제25권3호
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• pp.217-225
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• 2021

Neuropathic pain (NP) that contributes to the comorbidity between pain and depression is a clinical dilemma. Neuroinflammatory responses are known to have potentially important roles in the initiation of NP and depressive mood. In this study, we aimed to investigate the effects of paeoniflorin (PF) on NP-induced depression-like behaviors by targeting the hippocampal neuroinflammation through the toll-like receptor 4 (TLR4)/nuclear factor-kappa B (NF-κB) signaling pathway. We used a murine model of NP caused by unilateral sciatic nerve cuffing (Cuff). PF was injected intraperitoneally once a day for a total of 14 days. Pain and depression-like behavior changes were evaluated via behavioral tests. Pathological changes in the hippocampus of mice were observed by H&E staining. The levels of proinflammatory cytokines in the hippocampus were detected using ELISA. Activated microglia were measured by immunohistochemical staining. The TLR4/NF-κB signaling pathway-associated protein expression in the hippocampus was detected by western blotting. We found that the PF could significantly alleviate Cuff-induced hyperalgesia and depressive behaviors, lessen the pathological damage to the hippocampal cell, reduce proinflammatory cytokines levels, and inhibit microglial over-activation. Furthermore, PF downregulated the expression levels of TLR4/NF-κB signaling pathway-related proteins in the hippocampus. These results indicate that PF is an effective drug for improving the comorbidity between NP and depression.

• 정신신체의학
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• 제25권1호
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• pp.56-62
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• 2017

Objectives : The objective of this study was to investigate the relationship between psychological distress and pain in cancer patients. Methods : 249 patients with cancer who visited National Health Insurance Service Ilsan Hospital between April 2013 and March 2014 were evaluated with National Cancer Center Psychological Symptom Inventory(NCC-PSI) which consisted of Modified Distress Thermometer(MDT) and Modified Impact Thermometer(MIT). Each scale was divided into 3 subscales targeting separate symptoms: insomnia, anxiety, and depression. Psychological distress was defined as positive for those who scored above the cutoff values in at least one of all six subscales. The Numeric Rating Scale for Pain(NRS-Pain) was used to assess the subjective severity of pain. Logistic regression was performed to investigate the association between psychological distress and pain. Results : Univariate logistic regression analysis showed that pain, gender, compliance, and two subscale scores of Hospital Anxiety and Depression Scale(HADS) were significantly associated with psychological distress. Multivariate logistic regression analysis showed that pain and HADS anxiety subscale score maintained a statistically significant association with psychological distress adjusted for variables including age, gender, years of education, Eastern Cooperative Oncology Group performance status, cancer stage, Charlson Comorbidity Index, compliance, and HADS depression subscale score. One point increase in pain was 1.31 times more likely to cause psychological distress. In secondary analysis, pain was significantly associated with all subscales of NCC-PSI, except MIT-anxiety subscale. Conclusions : This study suggests that NCC-PSI, a screening tool for psychological distress, reflects pain. We recommend that physicians who treat cancer patients consider the examination of psychological distress which provides comprehensive evaluation of various factors regarding quality of life.

• The Korean Journal of Pain
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• 제37권2호
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• pp.107-118
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• 2024

Nociplastic pain by the "International Association for the Study of Pain" is defined as pain that arises from altered nociception despite no clear evidence of nociceptive or neuropathic pain. Augmented central nervous system pain and sensory processing with altered pain modulation are suggested to be the mechanism of nociplastic pain. Clinical criteria for possible nociplastic pain affecting somatic structures include chronic regional pain and evoked pain hypersensitivity including allodynia with after-sensation. In addition to possible nociplastic pain, clinical criteria for probable nociplastic pain are pain hypersensitivity in the region of pain to non-noxious stimuli and presence of comorbidity such as generalized symptoms with sleep disturbance, fatigue, or cognitive problems with hypersensitivity of special senses. Criteria for definitive nociplastic pain is not determined yet. Eight specific disorders related to central sensitization are suggested to be restless leg syndrome, chronic fatigue syndrome, fibromyalgia, temporomandibular disorder, migraine or tension headache, irritable bowel syndrome, multiple chemical sensitivities, and whiplash injury; non-specific emotional disorders related to central sensitization include anxiety or panic attack and depression. These central sensitization pain syndromes are overlapped to previous functional pain syndromes which are unlike organic pain syndromes and have emotional components. Therefore, nociplastic pain can be understood as chronic altered nociception related to central sensitization including both sensory components with nociceptive and/or neuropathic pain and emotional components. Nociplastic pain may be developed to explain unexplained chronic pain beyond tissue damage or pathology regardless of its origin from nociceptive, neuropathic, emotional, or mixed pain components.

• 대한지역사회작업치료학회지
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• 제9권1호
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• pp.35-45
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• 2019

목적 : 본 연구는 지역사회거주 성인에서 뇌졸중에 영향을 미치는 요인을 규명하고자 하였다. 연구방법 : 본 연구는 2016년 지역사회건강조사의 원시자료를 이용하였다. 이 조사에 참여한 대상자 228,452명 중 결측 값을 제거한 225,003명(98.5%)이 본 연구의 분석에 포함되었다. 사회인구학적 특성은 성별, 나이, 지역, 소득, 혼인상태로 설정하였고, 동반질환은 골다공증, 고혈압, 당뇨병, 이상고지혈증, 심근경색, 관절염이 선택되었다. 건강관련 삶의 질은 EuroQol-5 Dimension로 평가되었고 하위영역인 운동능력, 자기관리, 일상활동, 통증/불편, 불안/우울의 수준을 확인하였다. 종속변수는 뇌졸중 여부, 독립변수는 위에 서술한 16개 변수였다. 통계분석은 이분형 로지스틱 회귀분석을 이용하였다. 결과 : 인구사회학적 특성 변수에서는 남성일수록, 나이가 증가할수록, 소득수준이 낮을수록 뇌졸중을 높게 예측하였다. 동반질환 여부에서, 고혈압, 당뇨, 이상고지혈증, 심근경색이 있을수록 뇌졸중을 높게 예측하였다. 건강관련 삶의 질 하위영역에서 뇌졸중을 예측하는 영역은 자기관리, 일상활동, 운동능력, 불안/우울 순서로 나타났다. 결론 : 본 연구의 결과는 지역사회에 거주하는 뇌졸중 성인의 자조관리와 일상생활 능력 증진을 위한 맞춤형 건강증진 프로그램 개발이 필요함을 제안한다.

• 정신신체의학
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• 제25권2호
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• pp.129-135
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• 2017

연구목적 요실금과 우울증 간의 연관성에 대해 여러 연구가 진행되었으나 두 질환 발생의 시간적 관계나 인과 관계가 명확히 규명되지 못한 한계가 있어왔다. 또한 두 질환이 삶의 질에 미치는 영향에 대해 소수의 연구만 이뤄진 실정이다. 본 연구는 요실금과 우울증이 실제 삶에 끼치는 영향은 물론, 두 질환 간의 상호작용에 대해 파악해 보고자 하였다. 방 법 국내 C시에 거주하는 60세 이상의 노인 1262명을 분석 대상으로 삼았으며, 한국형 단축형 노인우울척도(SGDS-K)를 통해 우울 증상 정도를 평가하였고, 국제요실금학회의 요실금 정의에 기초하여 고안된 질문을 통해 참여자들의 요실금 유무를 파악하였다. 또한 참여자들의 삶의 질은 EuroQol-5 Dimension(EQ-5D)을 통해 각 세부 영역별로 측정하였다. 우울 정도와 요실금 유무에 따른 삶의 질의 차이 비교를 위해 t-test, ANOVA, Scheffe 사후 검정 방식을 이용하였고, 우울증과 요실금 간 상호작용이 삶의 질의 각 세부 영역에 미치는 영향을 비교하고자 다중 회귀 분석을 사용하였다. 결 과 요실금과 우울증 모두를 앓고 있는 참여자들은 모든 세부 영역[운동 능력, 자기 관리 능력, 일상적 활동, 통증, 불안감, 삶의 질에 대한 시각적 상사척도(VAS)]에 걸쳐 다른 모든 참여자들에 비해 유의하게 낮은 삶의 질을 보였다. 요실금 없이 우울증만 호소했던 참여자들은 특히 일상적 활동, 불안감, VAS 영역에서 유의하게 낮은 삶의 질을 보고하였고, 우울증 없이 요실금만 호소했던 참여자들은 운동 능력, 일상적 활동, 통증 영역에서 삶의 저하가 두드러졌다. 요실금과 우울증 간 상호작용은 VAS와 자기 관리 능력, 불안감 항목에서 유의한 영향력이 관찰되었다. 결 론 본 연구는 삶의 질을 저하시킨다고 알려진 요실금과 우울증이 공존할 때 이들의 상호작용이 삶의 질을 더욱 악화시킴을 밝혔으며, 세부 영역별로 삶의 질 악화 정도를 측정 비교하였다. 요실금을 앓는 환자들의 우울증 동반 여부에 대한 적절한 진단과 그에 대한 치료가 중요하다고 여겨진다.

• 정신신체의학
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• 제24권2호
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• pp.174-183
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• 2016

연구목적 본 연구에서는 불안장애와 주요우울장애 및 불안장애와 우울장애가 동반된 중복 진단군의 신체 증상의 빈도와 특성의 차이를 알아보고 여러 신체 증상군과 자살 사고, 자살 계획, 자살 시도와의 관련성에 대해 분석하고자 한다. 방 법 본 연구는 국가적 역학조사연구인 2011년 정신질환 실태 역학 조사 연구(Korean Epidemiologic Catchment Area Study-2011, KECA-2011)에 참여한 만 18세 이상에서 74세 이하의 참여자 6027명 중 지난 1 년 동안 주요우울장애 또는 불안장애의 진단 기준을 만족 하면서, 같은 시기에 최소 1가지 이상의 신체증상을 호소한 378명을 대상으로 하였다. 이후 조사된 신체 증상을 통증 증상군, 소화기 증상군, 가성신경학적 증상군의 세군으로 분류하여, 각 증상군에 따른 자살 사고, 자살 계획 및 자살 시도의 정도를 비교하였다. 면담 도구로는 한국어판 CIDI를 사용하였으며, 이 중 신체 증상에 대한 항목이 포함된 C장과 자살관련 항목이 포함된 S장의 일부 질문을 연구에 사용하였다. 결 과 진단별로 신체 증상의 차이를 비교하였을 때, 주요우울장애에서는 흉통(p=0.016, 95%CI)이, 불안장애에서는 두통(p=0.004, 95%CI)과 묽은 변이나 설사를 나타내는 증상(p=0.018, 95%CI)이, 주요우울장애와 불안 장애의 중복진단군에서는 균형을 잡기 힘든 것(p=0.006), 기절할 것 같은 느낌(p=0.020, 95%CI), 기억을 잃음(p=0.034, 95%CI)의 증상이 유의하게 많았다. 자살 계획의 경우 통증 증상군에서 자살 계획이 있었던 군의 증상의 평균 개수가 계획이 없는 군에 비해 유의하게 높았다(p=0.026, 95%CI). 자살 시도의 경우 소화기 증상군(p=0.004, 95%CI) 및 가성신경학적 증상군(p=0.013, 95%CI) 에서 자살 시도가 있었던 군의 증상의 개수가 시도가 없었던 군에 비해 유의하게 높았다. 자살 사고, 자살 계획, 자살 시도로 갈수록 각 증상군의 신체 증상의 평균의 개수는 증가하는 경향성을 보였다. 결 론 본 연구는 불안장애와 주요우울장애의 신체증상의 특성에 차이가 있음을 보여주었으며, 증상의 개수가 자살 사고에서 자살 계획, 자살 시도로 진행되는 단계로 갈수록 증가하며 일부 증상군에서는 자살 계획과 자살 시도의 유무의 유의한 차이를 보여주는 것으로 나타났다. 이 결과는 비 정신과적 임상 현장에서 다양하고 많은 숫자의 신체 증상을 호소하는 환자의 경우 정신과적인 적극적인 평가 및 자살 위험도에 대한 적극적인 평가가 필요함을 시사한다.