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1.
The Korean Journal of Physiology and Pharmacology ; : 585-592, 2021.
Artigo em Inglês | WPRIM | ID: wpr-919325

RESUMO

Cisplatin has been reported to cause side effects such as muscle wasting in humans and rodents. The physiological mechanisms involved in preventing muscle wasting, such as the regulation of AKT, PGC1-α, and autophagy-related factor FOXO3a by MuRF 1 and Atrogin-1,remain unclear following different types of exercise and in various skeletal muscle types. Eight-week-old male Wistar rats (n = 34) were assigned to one of four groups: control (CON, n = 6), cisplatin injection (1 mg/ kg) without exercise (CC, n = 8), cisplatin (1mg/kg) + resistance exercise (CRE, n = 9) group, and cisplatin (1 mg/kg) + aerobic exercise (CAE, n = 11). The CRE group performed progressive ladder exercise (starting with 10% of body weight on a 1-m ladder with 2-cm-interval grids, at 85°) for 8 weeks. The CAE group exercised by treadmill running (20 m/min for 60 min daily, 4 times/week) for 8 weeks. Compared with the CC group, the levels of the autophagy-related factors BNIP3, Beclin 1, LC3-II/ I ratio, p62, and FOXO3a in the gastrocnemius and soleus muscles were significantly decreased in the CRE and CAE groups. The CRE and CAE groups further showed significantly decreased MuRF 1 and Atrogin-1 levels and increased phosphorylation of AKT, FOXO3a, and PGC1-α. These results suggest that both ladder and aerobic exercise directly affected muscle wasting by modulating the AKT/PGC1-α/FOXO3a signaling pathways regardless of the skeletal muscle type.

2.
International Neurourology Journal ; : S47-54, 2021.
Artigo em Inglês | WPRIM | ID: wpr-914712

RESUMO

Purpose@#The effects of aerobic exercise training on soleus muscle morphology, mitochondria-mediated apoptotic signaling, and atrophy/hypertrophy signaling in ovariectomized rat skeletal muscle were investigated. @*Methods@#Female Sprague-Dawley rats were divided into control (CON), ovariectomy (OVX), and ovariectomy plus exercise (OVX+EX) groups. After ovarian excision, exercise training was performed using a rat treadmill at 20 m/min, 50 min/day, 5 days/week for 12 weeks. Protein levels of mitochondria-mediated apoptotic signaling and atrophy/hypertrophy signaling in the skeletal muscle (soleus) were examined through western immunoblot analysis. @*Results@#The number of myocytes and myocyte cross-sectional area (CSA) were increased and the extramyocyte space was decreased in the OVX group compared to those in the CON group. However, aerobic exercise training significantly increased myocyte CSA and decreased extramyocyte space in the OVX+EX group compared to those in the OVX group. The protein levels of proapoptotic signaling and muscle atrophy signaling were significantly increased, whereas the protein levels of muscle hypertrophy signaling were significantly decreased in the OVX group compared to that in the CON group. Aerobic exercise training significantly decreased the protein levels of proapoptotic signaling and increased the protein level of antiapoptotic protein in the OVX+EX group compared to that in the OVX group. Aerobic exercise training significantly increased the protein levels of hypertrophy signaling and decreased protein levels of atrophy signaling in the OVX+EX group compared to those in the OVX group. @*Conclusions@#Treadmill exercise improved estrogen deficiency-induced impairment in skeletal muscle remodeling, mitochondria-mediated apoptotic signaling, and atrophy/hypertrophy signaling in skeletal muscle.

3.
Diabetes & Metabolism Journal ; : 853-865, 2021.
Artigo em Inglês | WPRIM | ID: wpr-914184

RESUMO

Tissues actively involved in energy metabolism are more likely to face metabolic challenges from bioenergetic substrates and are susceptible to mitochondrial dysfunction, leading to metabolic diseases. The mitochondria receive signals regarding the metabolic states in cells and transmit them to the nucleus or endoplasmic reticulum (ER) using calcium (Ca2+) for appropriate responses. Overflux of Ca2+ in the mitochondria or dysregulation of the signaling to the nucleus and ER could increase the incidence of metabolic diseases including insulin resistance and type 2 diabetes mellitus. Mitochondrial transcription factor A (Tfam) may regulate Ca2+ flux via changing the mitochondrial membrane potential and signals to other organelles such as the nucleus and ER. Since Tfam is involved in metabolic function in the mitochondria, here, we discuss the contribution of Tfam in coordinating mitochondria-ER activities for Ca2+ flux and describe the mechanisms by which Tfam affects mitochondrial Ca2+ flux in response to metabolic challenges.

4.
Annals of Dermatology ; : 82-85, 2021.
Artigo em Inglês | WPRIM | ID: wpr-874114

RESUMO

Paradoxical reactions in patients treated with tumor necrosis factor-alpha inhibitors (TNFis) have an estimated prevalence of 1.5% to 5%. Such reactions usually present as psoriasiform eruptions on the trunk and extremities along with palmar and flexural involvement. When affecting the scalp, new-onset psoriasis induced by TNFi can result in non-scarring or scarring alopecia. Although the paradoxical reaction was first reported in 2003, this TNFi-associated psoriatic alopecia (TiAPA) has been recently reported with increasing frequency. This condition is characteristically reversible and requires clinical and histopathological identification from other diseases for proper treatment. The cessation of TNFi therapy may not be mandatory, and decision to continue TNFi therapy depends on the severity of TiAPA and the riskbenefit ratio of treatment modification on the underlying disease. Herein, we report a case of TiAPA in a patient with inflammatory bowel disease whose alopecia improved following suspension of TNFi. We also describe the clinical and histopathological diagnostic criteria based on review of the literature.

5.
Korean Journal of Dermatology ; : 307-309, 2021.
Artigo em Inglês | WPRIM | ID: wpr-902006

RESUMO

Sebaceous carcinoma is a malignant neoplasm frequently classified as periocular or extraocular. Extraocular sebaceous carcinoma is a relatively rare tumor commonly appearing in the head and neck region. Furthermore, extraocular sebaceous carcinoma limited to the epithelium, which is called ‘extraocular sebaceous carcinoma in situ’ is extremely rare with less than 10 cases reported in the literature. Herein, we present the case of a 93-year-old female who diagnosed as extraocular sebaceous carcinoma in situ occurring concurrently with actinic keratosis. In the present case, extraocular sebaceous carcinoma in situ as identified without any connection to an adnexal component but concurrent with actinic keratosis. This case is evidence that extraocular sebaceous carcinoma can arise from the epidermis and the tumor cells of intraepidermal squamous neoplasia can differentiate toward malignant sebocytes.

6.
Korean Journal of Dermatology ; : 501-506, 2021.
Artigo em Inglês | WPRIM | ID: wpr-901952

RESUMO

Background@#Umbilical skin lesions are rare but diverse and are rarely diagnosed by biopsy. @*Objective@#This study aimed to analyze the clinical and histopathological features of umbilical skin lesions that require histopathological investigation and to aid in the diagnosis of diseases in patients with umbilical skin lesions. @*Methods@#We performed a retrospective analysis of the patients who visited Korea University Medical center for umbilical skin lesions between January 2008 and December 2019. Age, sex, clinical features, etiologies, and histopathological features were obtained from the patients’ medical records. @*Results@#In total, 41 cases of histologically confirmed umbilical lesions were observed. There were 29 female patients (70.73%). The lesions included hypertrophic scars (11/41), epidermal cysts (7/41), verruca (6/41), seborrheic keratosis (4/41), nevus (4/41), steatocystoma (2/41), and one case each of endometriosis, hidrocystoma, neurofibroma, soft fibroma, foreign body granuloma, tick bite, and heterotopic gastric mucosa. @*Conclusion@#The most common umbilical skin lesions were hypertrophic scars, probably because of the increasing number of laparoscopic surgeries. Compared to the known trends in other countries, fewer biopsies were performed on the umbilical lesions for the diagnosis of metastatic cancer in this study, which might have been due to the low incidence of advanced gastric cancer and the early detection of cancer through endoscopy and computed tomography scan in Korea. Clinically, changes in treatment modality and diagnostic development can alter the frequency of the previously well-recognized diseases; therefore, medical personnel should be aware of the changing incidence of related diseases.

7.
Korean Journal of Dermatology ; : 307-309, 2021.
Artigo em Inglês | WPRIM | ID: wpr-894302

RESUMO

Sebaceous carcinoma is a malignant neoplasm frequently classified as periocular or extraocular. Extraocular sebaceous carcinoma is a relatively rare tumor commonly appearing in the head and neck region. Furthermore, extraocular sebaceous carcinoma limited to the epithelium, which is called ‘extraocular sebaceous carcinoma in situ’ is extremely rare with less than 10 cases reported in the literature. Herein, we present the case of a 93-year-old female who diagnosed as extraocular sebaceous carcinoma in situ occurring concurrently with actinic keratosis. In the present case, extraocular sebaceous carcinoma in situ as identified without any connection to an adnexal component but concurrent with actinic keratosis. This case is evidence that extraocular sebaceous carcinoma can arise from the epidermis and the tumor cells of intraepidermal squamous neoplasia can differentiate toward malignant sebocytes.

8.
Korean Journal of Dermatology ; : 501-506, 2021.
Artigo em Inglês | WPRIM | ID: wpr-894248

RESUMO

Background@#Umbilical skin lesions are rare but diverse and are rarely diagnosed by biopsy. @*Objective@#This study aimed to analyze the clinical and histopathological features of umbilical skin lesions that require histopathological investigation and to aid in the diagnosis of diseases in patients with umbilical skin lesions. @*Methods@#We performed a retrospective analysis of the patients who visited Korea University Medical center for umbilical skin lesions between January 2008 and December 2019. Age, sex, clinical features, etiologies, and histopathological features were obtained from the patients’ medical records. @*Results@#In total, 41 cases of histologically confirmed umbilical lesions were observed. There were 29 female patients (70.73%). The lesions included hypertrophic scars (11/41), epidermal cysts (7/41), verruca (6/41), seborrheic keratosis (4/41), nevus (4/41), steatocystoma (2/41), and one case each of endometriosis, hidrocystoma, neurofibroma, soft fibroma, foreign body granuloma, tick bite, and heterotopic gastric mucosa. @*Conclusion@#The most common umbilical skin lesions were hypertrophic scars, probably because of the increasing number of laparoscopic surgeries. Compared to the known trends in other countries, fewer biopsies were performed on the umbilical lesions for the diagnosis of metastatic cancer in this study, which might have been due to the low incidence of advanced gastric cancer and the early detection of cancer through endoscopy and computed tomography scan in Korea. Clinically, changes in treatment modality and diagnostic development can alter the frequency of the previously well-recognized diseases; therefore, medical personnel should be aware of the changing incidence of related diseases.

9.
Journal of Korean Academy of Fundamental Nursing ; : 64-72, 2020.
Artigo em Coreano | WPRIM | ID: wpr-919732

RESUMO

Purpose@#The purpose of this study was to identify the factors relating to commitment to a plan for exercise in the breast cancer patient following a mastectomy and to examine the relationship between these factors. @*Methods@#This study was a correlational research and the participants were 152 patients with breast cancer. Data were collected using a structured questionnaire from June to October, 2015. @*Results@#The final regression model showed that income, experience of exercise and current exercise were significant predictors related to commitment to a plan for exercise in patients with breast cancer and explained for 65.9% of the variance in commitment to a plan for exercise. @*Conclusion@#The findings indicate that patients in breast cancer-oriented intervention programs have an enhancing experience of exercise. Current exercise should be provided for patients with breast cancer in order to promote health and quality of life.

10.
Obstetrics & Gynecology Science ; : 258-263, 2019.
Artigo em Inglês | WPRIM | ID: wpr-760649

RESUMO

OBJECTIVE: We evaluated the clinical characteristics of patients who underwent surgery after high intensity focused ultrasound (HIFU) to treat uterine leiomyoma. METHODS: From June 2016 to September 2017, patients at our hospital who underwent HIFU to treat uterine leiomyoma prior to surgery were enrolled. All patients underwent pelvic magnetic resonance imaging (MRI) before and after HIFU. If 6 months had passed since the last pelvic MRI was performed, imaging was performed again before the operation. RESULTS: A total of 12 patients were analyzed. The median age was 45 (range, 28–51) years. The median body mass index was 24.9 (range, 18.1–29.2) kg/m2. The median size of the leiomyoma was 10.1 (range, 7.8–14.0) cm before HIFU, which changed to 8.75 (range, 5.9–14.8) cm after HIFU. The median size increased to 9.1 (range, 5.9–18.0) cm before the operation. Surgery was planned for several reasons, including an increase in the leiomyoma size (n=6), persistent symptoms (n=4), and newly developed lesion (n=2). The median interval between HIFU and surgery was 7 (range, 3–32) months. Ten of the 12 patients underwent laparoscopic surgery, while the others underwent laparotomy; 6 patients also underwent laparoscopic myomectomy, and 4 underwent hysterectomy. Histopathologic findings showed infarction-type necrosis surrounded by granulation tissue with the infiltration of lymphocytes and macrophages in all patients. CONCLUSION: Treatment of leiomyoma with operative procedures should be considered in selected patients with tumor size greater than 10 cm, multiple tumors, and persistent symptoms after HIFU treatment.


Assuntos
Humanos , Índice de Massa Corporal , Tecido de Granulação , Ablação por Ultrassom Focalizado de Alta Intensidade , Histerectomia , Laparoscopia , Laparotomia , Leiomioma , Linfócitos , Macrófagos , Imageamento por Ressonância Magnética , Necrose , Procedimentos Cirúrgicos Operatórios , Ultrassonografia
11.
12.
Korean Journal of Dermatology ; : 488-491, 2019.
Artigo em Coreano | WPRIM | ID: wpr-759782

RESUMO

Subcorneal pustular dermatosis (SPD), also known as Sneddon-Wilkinson's disease, is a rare pustular eruption that occurs mainly in middle-aged women and rarely during childhood. Clinically, the pustules are distributed on the trunk and proximal region of the limbs, and cultures of the pustules consistently do not reveal bacterial growth. Histopathology shows subcorneal pustules containing polymorphonuclear leukocytes and chronic progression. SPD is a rare condition, especially in children, and only one case has been reported in Korea. Here, we report a case of 4-year-old girl as an educational case for the diagnosis and treatment of pediatric SPD.


Assuntos
Criança , Pré-Escolar , Feminino , Humanos , Diagnóstico , Extremidades , Coreia (Geográfico) , Neutrófilos , Dermatopatias Vesiculobolhosas
13.
Journal of Korean Society of Spine Surgery ; : 178-190, 2019.
Artigo em Coreano | WPRIM | ID: wpr-786061

RESUMO

STUDY DESIGN: Review article.OBJECTIVES: To assess the evidence for nonoperative treatment of various degenerative spinal degenerative diseases.SUMMARY OF LITERATURE REVIEW: No study has yet evaluated the evidence for preoperative nonoperative treatment of lumbar spinal diseases.METHODS: The evidence regarding nonoperative treatment for each disease was reviewed through NASS guidelines, and the treatment effect compared to surgical treatment was reviewed through the SPORT series. The efficacy of nonoperative treatment according to disease severity and certain special conditions was investigated through corresponding individual articles.RESULTS: No kind of nonoperative treatment could change the fundamental progression of degenerative spinal disease. The natural course of lumbar disc herniation is favorable regardless of treatment. More than 70% of routine cases improve within 6 weeks. However, it does not take a full 6 weeks to decide whether to perform surgery or not. The evidence for transforaminal epidural steroid injections for short-term pain control is grade A. There is grade B evidence for nonoperative treatment with the goal of mid- to long-term pain control. However, we cannot say that those outcomes are better than the natural course of the disease itself. In cases of radicular weakness, the degree of weakness is correlated with the final outcomes, but it is not evident whether the duration of weakness is correlated with surgical outcomes. Early surgery is usually necessary due to intolerable pain, rather than stable motor weakness. The social cost of herniated discs arises from the loss of patients’ productivity, rather than from direct medical expenses. The natural course of spinal stenosis involves provoked pain and the need for palliative care. Unlike disc herniation, rapid deterioration and marked improvement do not occur. The symptoms of mild to moderate lumbar stenosis are unchanged in 70% of cases, improve in 15%, and worsen in 15%. No study has compared nonoperative treatment with the natural course of the disease. There is no evidence for nonoperative treatment of severe stenosis. Epidural spinal injections are effective for controlling short-term pain. Spontaneous recovery of radicular weakness does not occur, and urgent surgery is necessary in such cases. There is no evidence regarding the natural course and nonoperative treatment of degenerative spondylolisthesis. The working group consensus recommends that it should follow the pattern of nonoperative treatment of spinal stenosis when radicular stenosis symptoms are predominant. Overall, 40%–66% of cases of adult bilateral isthmic spondylolysis progress to symptomatic spondylolisthesis. No studies have investigated nonoperative treatment except physical exercise.CONCLUSIONS: Although short-term symptom amelioration can be achieved by nonoperative treatment, the fundamental progression of the disease is not affected. For conditions excluded from most studies, such as prior spine surgery, cauda equina syndrome, progressive neurological deficit, and uncontrollable severe pain associated with instability, deformity, or vertebral fractures, there were not enough studies to reach informed conclusions. Our review found no evidence regarding nonoperative treatment for such conditions. Furthermore, the treatment methods for each disease are not clearly distinguished from each other, and the techniques used for disc herniation have been applied to other diseases without any evidence.


Assuntos
Adulto , Humanos , Anormalidades Congênitas , Consenso , Constrição Patológica , Eficiência , Exercício Físico , Injeções Espinhais , Deslocamento do Disco Intervertebral , Cuidados Paliativos , Polirradiculopatia , Doenças da Coluna Vertebral , Estenose Espinal , Coluna Vertebral , Espondilolistese , Espondilólise , Esportes
14.
Journal of Korean Academy of Nursing Administration ; : 424-436, 2019.
Artigo em Coreano | WPRIM | ID: wpr-786001

RESUMO

PURPOSE: This study was aimed to explore the work experience of nurses who transitioned from the patient nursing department to administrative departments.METHODS: The participants were 11 nurses who had worked in departments of human resources, education and training, medical insurance review, information technology, and quality improvement. Data were collected through in-depth individual interviews done between December 2017 and July 2018 and were analyzed in terms of Giorgi's phenomenological methodology. The research question was ‘What kind of experience did you have as you transition to a new role from a nurse to a hospital administrative nurse? What are the challenges in carrying out a new role? How do you overcome obstacles and adjust to being a hospital administrative nurse?’RESULTS: The main essence of the administrative nurses' work adjustment experience is represented by six components; 1) Beginning of a new challenge in conflict, 2) Running into barriers, 3) Struggling to take root, 4) Recognizing changes in the hospital, 5) Gradually adjusting to change, 6) Becoming a proficient hospital administrative nurse.CONCLUSION: Based on these findings, it is essential to create systems that enable administrative nurses to adjust to their work without confusion, and continuously develop programs to enhance their competence.


Assuntos
Humanos , Educação , Seguro , Competência Mental , Enfermagem , Pesquisa Qualitativa , Melhoria de Qualidade , Corrida
15.
Journal of Korean Society of Spine Surgery ; : 178-190, 2019.
Artigo em Coreano | WPRIM | ID: wpr-915668

RESUMO

OBJECTIVES@#To assess the evidence for nonoperative treatment of various degenerative spinal degenerative diseases.SUMMARY OF LITERATURE REVIEW: No study has yet evaluated the evidence for preoperative nonoperative treatment of lumbar spinal diseases.@*METHODS@#The evidence regarding nonoperative treatment for each disease was reviewed through NASS guidelines, and the treatment effect compared to surgical treatment was reviewed through the SPORT series. The efficacy of nonoperative treatment according to disease severity and certain special conditions was investigated through corresponding individual articles.@*RESULTS@#No kind of nonoperative treatment could change the fundamental progression of degenerative spinal disease. The natural course of lumbar disc herniation is favorable regardless of treatment. More than 70% of routine cases improve within 6 weeks. However, it does not take a full 6 weeks to decide whether to perform surgery or not. The evidence for transforaminal epidural steroid injections for short-term pain control is grade A. There is grade B evidence for nonoperative treatment with the goal of mid- to long-term pain control. However, we cannot say that those outcomes are better than the natural course of the disease itself. In cases of radicular weakness, the degree of weakness is correlated with the final outcomes, but it is not evident whether the duration of weakness is correlated with surgical outcomes. Early surgery is usually necessary due to intolerable pain, rather than stable motor weakness. The social cost of herniated discs arises from the loss of patients’ productivity, rather than from direct medical expenses. The natural course of spinal stenosis involves provoked pain and the need for palliative care. Unlike disc herniation, rapid deterioration and marked improvement do not occur. The symptoms of mild to moderate lumbar stenosis are unchanged in 70% of cases, improve in 15%, and worsen in 15%. No study has compared nonoperative treatment with the natural course of the disease. There is no evidence for nonoperative treatment of severe stenosis. Epidural spinal injections are effective for controlling short-term pain. Spontaneous recovery of radicular weakness does not occur, and urgent surgery is necessary in such cases. There is no evidence regarding the natural course and nonoperative treatment of degenerative spondylolisthesis. The working group consensus recommends that it should follow the pattern of nonoperative treatment of spinal stenosis when radicular stenosis symptoms are predominant. Overall, 40%–66% of cases of adult bilateral isthmic spondylolysis progress to symptomatic spondylolisthesis. No studies have investigated nonoperative treatment except physical exercise.@*CONCLUSIONS@#Although short-term symptom amelioration can be achieved by nonoperative treatment, the fundamental progression of the disease is not affected. For conditions excluded from most studies, such as prior spine surgery, cauda equina syndrome, progressive neurological deficit, and uncontrollable severe pain associated with instability, deformity, or vertebral fractures, there were not enough studies to reach informed conclusions. Our review found no evidence regarding nonoperative treatment for such conditions. Furthermore, the treatment methods for each disease are not clearly distinguished from each other, and the techniques used for disc herniation have been applied to other diseases without any evidence.

16.
International Neurourology Journal ; : S82-S92, 2019.
Artigo em Inglês | WPRIM | ID: wpr-914680

RESUMO

Neuroinflammation is a central pathological feature of several acute and chronic brain diseases, including Alzheimer disease (AD), Parkinson disease (PD), amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS). It induces microglia activation, mitochondrial dysfunction, the production of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), pro-inflammatory cytokines, and reactive oxygen species. Exercise, which plays an important role in maintaining and improving brain health, might be a highly effective intervention for preventing neuroinflammation-related diseases. Thus, since exercise can improve the neuroimmune response, we hypothesized that exercise would attenuate neuroinflammation-related diseases. In this review, we will highlight (1) the biological mechanisms that underlie AD, PD, ALS, and MS, including the neuroinflammation pathways associated with microglia activation, NF-κB, pro-inflammatory cytokines, mitochondrial dysfunction, and reactive oxygen species, and (2) the role of exercise in neuroinflammation-related neurodegenerative diseases.

17.
International Neurourology Journal ; : S22-S31, 2019.
Artigo em Inglês | WPRIM | ID: wpr-914672

RESUMO

PURPOSE@#This study aimed to investigate the effects of single-bout exercise on mitochondrial function, dynamics (fusion, fission), and mitophagy in cardiac and skeletal muscles.@*METHODS@#Fischer 344 rats (4 months old) were randomly divided into the control (CON) or acute exercise (EX) group (n=10 each). The rats performed a single bout of treadmill exercise for 60 minutes. Mitochondrial function (e.g., O₂ respiration, H₂O₂ emission, Ca²⁺ retention capacity), mitochondrial fusion (e.g., Mfn1, Mfn2, Opa1), mitochondrial fission (e.g., Drp1, Fis1), and mitophagy (e.g., Parkin, Pink1, LC3II, Bnip3) were measured in permeabilized cardiac (e.g., left ventricle) and skeletal (e.g., soleus, white gastrocnemius) muscles.@*RESULTS@#Mitochondrial O₂ respiration and Ca²⁺ retention capacity were significantly increased in all tissues of the EX group compared with the CON group. Mitochondrial H₂O₂ emissions showed tissue-specific results; the emissions showed no significant differences in the left ventricle or soleus (type I fibers) but was significantly increased in the white gastrocnemius (type II fibers) after acute exercise. Mitochondrial fusion and fission were not altered in any tissues of the EX group. Mitophagy showed tissue-specific differences: It was not changed in the left ventricle or white gastrocnemius, whereas Parkin and LC3II were significantly elevated in the soleus muscle.@*CONCLUSIONS@#A single bout of aerobic exercise may improve mitochondrial function (e.g., O₂ respiration and Ca²⁺ retention capacity) in the heart and skeletal muscles without changes in mitochondrial dynamics or mitophagy.

18.
Journal of Clinical Neurology ; : 310-319, 2018.
Artigo em Inglês | WPRIM | ID: wpr-715694

RESUMO

BACKGROUND AND PURPOSE: Obstructive sleep apnea (OSA) is associated with cerebral white-matter changes (WMC), but the underlying mechanisms are not completely understood. Our aim was to identify the cardiovascular autonomic characteristics during sleep that are associated with cerebral WMC in OSA patients. METHODS: We recruited subjects from our sleep-center database who underwent both polysomnography and brain MRI within a 1-year period. Sixty patients who had OSA with WMC (OSA+WMC), 44 patients who had OSA without WMC (OSA−WMC), and 31 control subjects who had neither OSA nor WMC were analyzed. Linear and nonlinear indices of heart-rate variability (HRV) were analyzed in each group according to different sleep stages and also over the entire sleeping period. RESULTS: Among the nonlinear HRV indices, the Poincaré ratio (SD12) during the entire sleep period was significantly increased in the OSA+WMC group, even after age adjustment. Meanwhile, detrended fluctuation analysis 1 during non-rapid-eye-movement sleep tended to be lowest in the OSA+WMC group. These indices were altered regardless of the presence of hypertension or diabetes. In the subgroup analysis of middle-aged OSA patients, approximate entropy during rapid-eye-movement sleep was significantly lower in OSA+WMC patients than in OSA−WMC patients. Overall, the nonlinear HRV indices suggest that sympathetic activity was higher in the OSA+WMC group than in the OSA−WMC and control groups. CONCLUSIONS: Our findings suggest that dysregulation of HRV, especially overactivation of sympathetic tone, could be a pathophysiologic mechanism underlying the development of WMC in OSA patients.


Assuntos
Humanos , Encéfalo , Entropia , Hipertensão , Imageamento por Ressonância Magnética , Polissonografia , Apneia Obstrutiva do Sono , Fases do Sono
19.
Korean Journal of Family Medicine ; : 300-306, 2018.
Artigo em Inglês | WPRIM | ID: wpr-717106

RESUMO

BACKGROUND: Early menarche may be associated with increased risk of cardiovascular disease. The aim of this study was to evaluate the relationship between age at menarche and metabolic syndrome (MetS) in Korean premenopausal women. METHODS: We used nationally representative data from the Korea National Health and Nutrition Examination Survey from 2013 to 2014, and 3,023 premenopausal women aged 20–55 years were our subjects. We defined early menarche as age at first menstrual period less than 12 years. Multivariable logistic regression analysis was used to evaluate the relationship between age at menarche and MetS after adjusting for current age, and socioeconomic, lifestyle, and reproductive variables. RESULTS: MetS was much more common in women aged 40–55 years than in women aged 20–39 years (4.1% vs. 15.1%). Compared with women who experienced menarche at age 12–15 years, the risk of MetS in the early menarche group was not higher in either age group, after adjusting for current age, and socioeconomic, lifestyle, and reproductive variables (odds ratio [OR], 1.767; 95% confidence interval [CI], 0.718–4.351 in those aged 20–39 years; OR, 1.780; 95% CI, 0.775–4.085 in those aged 40–55 years). The risk of MetS in women with menarche at age ≥16 years was not higher than in women with menarche at age 12–15 years. CONCLUSION: Early or late menarche was not associated with an increased risk of MetS in premenopausal Korean women. Even before menopause, current age has a major influence on the development of MetS.


Assuntos
Feminino , Humanos , Doenças Cardiovasculares , Coreia (Geográfico) , Estilo de Vida , Modelos Logísticos , Menarca , Menopausa , Inquéritos Nutricionais , Obesidade , Pré-Menopausa
20.
The Korean Journal of Physiology and Pharmacology ; : 235-248, 2018.
Artigo em Inglês | WPRIM | ID: wpr-728618

RESUMO

Ursolic acid (UA) is a natural triterpene compound found in various fruits and vegetables. There is a growing interest in UA because of its beneficial effects, which include anti-inflammatory, anti-oxidant, anti-apoptotic, and anti-carcinogenic effects. It exerts these effects in various tissues and organs: by suppressing nuclear factor-kappa B signaling in cancer cells, improving insulin signaling in adipose tissues, reducing the expression of markers of cardiac damage in the heart, decreasing inflammation and increasing the level of anti-oxidants in the brain, reducing apoptotic signaling and the level of oxidants in the liver, and reducing atrophy and increasing the expression levels of adenosine monophosphate-activated protein kinase and irisin in skeletal muscles. Moreover, UA can be used as an alternative medicine for the treatment and prevention of cancer, obesity/diabetes, cardiovascular disease, brain disease, liver disease, and muscle wasting (sarcopenia). In this review, we have summarized recent data on the beneficial effects and possible uses of UA in health and disease managements.


Assuntos
Adenosina , Anticarcinógenos , Atrofia , Encéfalo , Encefalopatias , Doenças Cardiovasculares , Terapias Complementares , Gerenciamento Clínico , Frutas , Coração , Inflamação , Insulina , Fígado , Hepatopatias , Músculo Esquelético , Oxidantes , Proteínas Quinases , Verduras
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