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1.
Int J Mol Med ; 52(2)2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37326061

RESUMO

Obesity is associated with high risk of mortality globally because obesity is associated with development of diseases such as diabetes, dyslipidemia, fatty liver disease, hypertension, and cancer. The present study aimed to identify the mechanism of action related to the anti­obesity activity of Paeonia lactiflora root (PLR) based on its effects on lipid droplet accumulation. The inhibitory activity on lipid accumulation was analyzed through Oil­Red O staining, and the changes in levels of lipid accumulation­related proteins were analyzed using Western blot analysis. And the contents of triacylglycerol and free glycerol were analyzed using an ELISA Kit. PLR significantly inhibited the accumulation of lipid droplets and triacylglycerol in differentiating 3T3­L1 cells. PLR increased phosphorylated­hormone sensitive lipase (HSL), HSL and adipose triglyceride lipase (ATGL) and decreases perilipin­1 in differentiating and fully differentiated 3T3­L1 cells. Furthermore, treatment of fully differentiated 3T3­L1 cells with PLR resulted in increased free glycerol levels. PLR treatment increased levels of peroxisome proliferator­activated receptor­gamma coactivator­1 alpha (PGC­1α), PR domain containing 16 (PRDM16) and uncoupling protein 1 (UCP­1) in both differentiating and fully differentiated 3T3­L1 cells. However, the PLR­mediated increase in lipolytic, such as ATGL and HSL, and thermogenic factors, such as PGC­1a and UCP­1, were decreased by inhibition of AMP­activated protein kinase (AMPK) with Compound C. Taken together, these results suggest that PLR exerted anti­obesity effects by regulating lipolytic and thermogenic factors via AMPK activation. Therefore, the present study provided evidence that PLR is a potential natural agent for the development of drugs to control obesity.


Assuntos
Lipólise , Paeonia , Camundongos , Animais , Humanos , Proteínas Quinases Ativadas por AMP/metabolismo , Paeonia/metabolismo , Células 3T3-L1 , Glicerol , Lipase/metabolismo , Esterol Esterase/metabolismo , Triglicerídeos , Obesidade/metabolismo , Termogênese
2.
Oper Neurosurg (Hagerstown) ; 21(5): 277-290, 2021 10 13.
Artigo em Inglês | MEDLINE | ID: mdl-34392372

RESUMO

BACKGROUND: Deep brain stimulation (DBS) was first approved by the United States Food and Drug Administration in 1997. Although the fundamentals of DBS remain the same, hardware, software, and imaging have evolved significantly. OBJECTIVE: To test our hypothesis that the aggregate complication rate in the medical literature in the past 12 years would be lower than what is often cited based on early experience with DBS surgery. METHODS: PubMed, PsycINFO, and EMBASE were queried for studies from 2008 to 2020 that included patients treated with DBS from 2007 to 2019. This yielded 34 articles that evaluated all complications of DBS surgery, totaling 2249 patients. RESULTS: The overall complication rate in this study was 16.7% per patient. There was found to be a systemic complication rate of 0.89%, intracranial complication rate of 2.7%, neurological complication rate of 4.6%, hardware complication rate of 2.2%, and surgical site complication rate of 3.4%. The infection and erosion rate was 3.0%. CONCLUSION: This review suggests that surgical complication rates have decreased since the first decade after DBS was first FDA approved. Understanding how to minimize complications from the inception of a technique should receive more attention.


Assuntos
Estimulação Encefálica Profunda , Humanos , Estados Unidos/epidemiologia
3.
J Craniofac Surg ; 31(3): e245-e247, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31934975

RESUMO

Many methods have been devised to repair cranial defects. Here, we report the use of a simple technique for the repair of a congenital cranial defect associated with aplasia cutis congenita (ACC).A newborn baby at 39 weeks of gestation was consulted with a scalp and cranial defect at the vertex measuring 3 × 1.5 cm. A 3-D CT scan of the skull confirmed the presence of a cranial defect at the sagittal suture and a normal brain structure. On the 13 day of life, the newborn was taken to an operating room. An autologous bone graft was harvested from adjacent normal parietal bone and grafted into the debrided congenital cranial defect. The soft tissue defect was then covered by rotation flaps.The postoperative 3-D CT scan presented a well-positioned autologous bone graft. At 1 month postoperatively, the skull contour was normal and there was no palpable defect.We report a successful surgical outcome for a congenital cranial and soft tissue defect in ACC treated using an autologous bone graft and rotation flaps. Although conservative therapy may be an alternative option, we recommend appropriate surgical reconstruction in patients at risk of potentially fatal complications.


Assuntos
Transplante Ósseo , Displasia Ectodérmica/cirurgia , Anormalidades Maxilomandibulares/cirurgia , Suturas Cranianas , Displasia Ectodérmica/diagnóstico por imagem , Humanos , Recém-Nascido , Anormalidades Maxilomandibulares/diagnóstico por imagem , Osso Parietal/anormalidades , Osso Parietal/diagnóstico por imagem , Osso Parietal/cirurgia , Couro Cabeludo/cirurgia , Retalhos Cirúrgicos , Tomografia Computadorizada por Raios X , Transplante Autólogo
4.
J Ethnopharmacol ; 250: 112446, 2020 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-31812646

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Stauntonia hexaphylla (Lardizabalaceae, S. hexaphylla) is traditionally used as a folk remedy for alleviating fever and for its anti- inflammatory and analgesic properties. In Korea and China, S. hexaphylla has been used as a traditional medicine that acts as diuretic and analgesic. S. hexaphylla has also been reported to inhibit osteoporosis and aldose reductase activity. AIM OF THE STUDY: The study aimed to evaluate the therapeutic effects of an extract of S. hexaphylla on testosterone induced benign prostate hyperplasia (BPH) models and to observe its mechanism of action. MATERIALS AND METHODS: To induce a BPH model in vitro and in vivo, a testosterone-treated LNCaP cell line and Sprague Dawley (SD) rats were used, respectively. Androgen receptors (ARs) and prostate-specific antigens (PSA), which are typical BPH-related proteins, were evaluated using western blotting. Prostate weights and dihydrotestosterone (DHT) levels were measured in vivo, and histopathology of the prostate examined using hematoxylin and eosin staining. Proliferating cell nuclear antigen (PCNA) and 5α-reductase type 2 were also evaluated via immunohistochemistry (IHC). In addition, TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) staining and LC3 staining of IHC were performed to evaluate apoptosis and autophagy. RESULTS: S. hexaphylla reduced prostates weights and the thickness of prostate epithelial cells. In vivo and in vitro, PSA and ARs were downregulated following S. hexaphylla treatment. The S. hexaphylla extracts also reduced DHT and 5α-reductase type 2 expression. In addition, the expression of PCNA was reduced, and in the TUNEL staining and IHC of LC3, the number of positive cells was increased in the groups treated with S. hexaphylla. CONCLUSIONS: It was observed that extracts of S. hexaphylla inhibited both 5α -reductase type 2 and ARs. The results indicate that the use of S. hexaphylla extract in BPH is probably beneficial through 5α-reductase inhibition and α-adrenergic receptor blockade. In addition, apoptosis and autophagy were induced, and PCNA was downregulated after S. hexaphylla treatment. Therefore, it can be concluded that S. hexaphylla has a therapeutic effect on BPH.


Assuntos
Extratos Vegetais/uso terapêutico , Hiperplasia Prostática/tratamento farmacológico , Ranunculales , Animais , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Colestenona 5 alfa-Redutase/metabolismo , Di-Hidrotestosterona/metabolismo , Humanos , Masculino , Extratos Vegetais/farmacologia , Próstata/efeitos dos fármacos , Próstata/metabolismo , Próstata/patologia , Hiperplasia Prostática/metabolismo , Hiperplasia Prostática/patologia , Ratos Sprague-Dawley , Receptores Androgênicos/metabolismo
5.
Medicine (Baltimore) ; 98(22): e15803, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31145311

RESUMO

RATIONALE: Barrow type B carotid-cavernous fistulas are dural shunts between the meningeal branches of the internal carotid artery and the cavernous sinus; these types of dural fistulas can produce specific patterns of symptoms based on the pattern of venous drainage. PATIENT CONCERNS AND DIAGNOSES: A 67-year-old man came to our hospital presenting with acute left orbital pain and double vision in the left eye. The diagnosis was carotid-cavernous fistula fed by the meningohypophyseal trunk and drained to the left superior ophthalmic vein. INTERVENTIONS AND OUTCOMES: We planned gamma knife radiosurgery for the left cavernous sinus including fistula point as an alternative treatment. The orbital pain disappeared in 2 weeks, and all signs and symptoms in the left eye completely improved within 2 months. LESSONS: Gamma knife radiosurgery may be an alternative treatment for carotid cavernous fistula. Furthermore, in patients with poor vascular access and no fatal presentation, this may be a reasonable first-line treatment option.


Assuntos
Fístula Carótido-Cavernosa/cirurgia , Radiocirurgia/métodos , Idoso , Humanos , Masculino
6.
J Ginseng Res ; 43(2): 252-260, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30976163

RESUMO

BACKGROUND: Increases in the average global temperature cause heat stress-induced disorders by disrupting homeostasis. Excessive heat stress triggers an imbalance in the immune system; thus protection against heat stress is important to maintain immune homeostasis. Korean ginseng (Panax ginseng Meyer) has been used as a herbal medicine and displays beneficial biological properties. METHODS: We investigated the protective effects of Korean ginseng extracts (KGEs) against heat stress in a rat model. Following acclimatization for 1 week, rats were housed at room temperature for 2 weeks and then exposed to heat stress (40°C/2 h/day) for 4 weeks. Rats were treated with three KGEs from the beginning of the second week to the end of the experiment. RESULTS: Heat stress dramatically increased secretion of inflammatory factors, and this was significantly reduced in the KGE-treated groups. Levels of inflammatory factors such as heat shock protein 70, interleukin 6, inducible nitric oxide synthase, and tumor necrosis factor-alpha were increased in the spleen and muscle upon heat stress. KGEs inhibited these increases by down-regulating heat shock protein 70 and the associated nuclear factor-κB and mitogen-activated protein kinase signaling pathways. Consequently, KGEs suppressed activation of T-cells and B-cells. CONCLUSION: KGEs suppress the immune response upon heat stress and decrease the production of inflammatory cytokines in muscle and spleen. We suggest that KGEs protect against heat stress by inhibiting inflammation and maintaining immune homeostasis.

7.
Nutrients ; 10(6)2018 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-29865208

RESUMO

Obesity predisposes animals towards the metabolic syndrome and diseases such as type 2 diabetes, atherosclerosis, and cardiovascular disease. Spirulina maxima is a microalga with anti-oxidant, anti-cancer, and neuroprotective activities, but the anti-obesity effect of Spirulina maxima 70% ethanol extract (SM70EE) has not yet been fully established. We investigated the effect of SM70EE on adipogenesis, lipogenesis, and browning using in vitro and in vivo obesity models. SM70EE treatment reduced lipid droplet accumulation by the oil red O staining method and downregulated the adipogenic proteins C/EBPα, PPARγ, and aP2, and the lipogenic proteins SREBP1, ACC, FAS, LPAATß, Lipin1, and DGAT1 by western blot analysis. In addition, the index components of SM70EE, chlorophyll a, and C-phycocyanin, reduced adipogenesis and lipogenesis protein levels in 3T3-L1 and C3H10T1/2 cells. High-fat diet (HFD)-fed mice administered with SM70EE demonstrated smaller adipose depots and lower blood lipid concentrations than control HFD-fed mice. The lower body mass gain in treated SM70EE-administrated mice was associated with lower protein expression of adipogenesis factors and higher expression of AMPKα-induced adipose browning proteins PRDM16, PGC1α, and UCP1. SM70EE administration ameliorates obesity, likely by reducing adipogenesis and activating the thermogenic program, in 3T3-L1 cells and HFD-induced obese mice.


Assuntos
Adipócitos Marrons/efeitos dos fármacos , Adipócitos Brancos/efeitos dos fármacos , Adipogenia/efeitos dos fármacos , Adiposidade/efeitos dos fármacos , Fármacos Antiobesidade/farmacologia , Dieta Hiperlipídica , Obesidade/prevenção & controle , Spirulina/química , Células 3T3-L1 , Adipócitos Marrons/metabolismo , Adipócitos Marrons/patologia , Adipócitos Brancos/metabolismo , Adipócitos Brancos/patologia , Animais , Fármacos Antiobesidade/isolamento & purificação , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Metabolismo Energético/efeitos dos fármacos , Gotículas Lipídicas/efeitos dos fármacos , Gotículas Lipídicas/metabolismo , Gotículas Lipídicas/patologia , Lipídeos/sangue , Lipogênese/efeitos dos fármacos , Masculino , Camundongos , Camundongos Endogâmicos ICR , Obesidade/sangue , Obesidade/patologia , Obesidade/fisiopatologia , Termogênese/efeitos dos fármacos , Fatores de Tempo , Aumento de Peso/efeitos dos fármacos
8.
Neurosci Lett ; 673: 33-38, 2018 04 23.
Artigo em Inglês | MEDLINE | ID: mdl-29499310

RESUMO

Spirulina maxima is a blue-green micro alga that contains abundant amounts of proteins (60-70%), vitamins, chlorophyll a, and C-phycocyanin (C-PC). It has been shown to reduce oxidative stress, and prevent diabetes and non-alcoholic fatty liver disease. However, it is unclear whether Spirulina maxima 70% ethanol extract (SM70EE), chlorophyll a, and C-PC prevent Aß1-42-induced neurotoxicity in PC12 cells. The aim of this study was to investigate whether SM70EE, chlorophyll a, and C-PC prevent Aß1-42-induced cell death. SM70EE, chlorophyll a, and C-PC suppressed the Aß1-42-induced increase in poly-ADP ribose polymerase-1 (PARP-1) cleavage and reduced Aß1-42-induced decreases in glutathione and its associated factors. The level of brain-derived neurotrophic factor (BDNF), which plays a critical role in neuronal survival and neuroprotection, was increased by SM70EE, chlorophyll a, and C-PC in Aß1-42-treated cells. SM70EE treatment decreased oxidative stress and cell death in response to Aß1-42 treatment, while simultaneously suppressing PARP cleavage and increasing the levels of glutathione (GSH) and its associated factors. Moreover, SM70EE lowered the levels of APP and BACE1, two major factors involved in APP processing, and increased BDNF expression during Aß1-42-induced neurotoxicity in PC12 cells. We suggest that SM70EE prevents cell death caused by Aß1-42 -induced neurotoxicity via the activation of BDNF signaling.


Assuntos
Peptídeos beta-Amiloides/metabolismo , Peptídeos beta-Amiloides/toxicidade , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Morte Celular/efeitos dos fármacos , Fragmentos de Peptídeos/metabolismo , Fragmentos de Peptídeos/toxicidade , Spirulina/química , Animais , Estresse Oxidativo , Células PC12 , Ficocianina/administração & dosagem , Poli(ADP-Ribose) Polimerase-1/metabolismo , Ratos , Sesquiterpenos/administração & dosagem , Transdução de Sinais/efeitos dos fármacos
9.
J Neurointerv Surg ; 10(6): e13, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29444960

RESUMO

Herein, we describe a technique for stent-assisted coil embolization with a spring-shaped microcatheter in a patient with an M1 ultrawide-necked circumferential aneurysm in the middle cerebral artery (MCA). A 49-year-old man was referred for treatment of an incidentally detected M1 large-circumference aneurysm on magnetic resonance angiography. Subsequent digital subtraction angiography revealed an 18.2×16.5 mm ultrawide-necked circumferential aneurysm on the distal M1 portion of the left MCA, and we planned stent-assisted coil embolization using a spring-shaped microcatheter. After we deployed the stent, we performed coil embolization under the down-the-barrel view by pulling out the microcatheter little by little. Using this technique, we could fill the coil mass evenly into the aneurysmal sac around the stent. And there were no immediate or delayed complications after the procedure. Stent-assisted coiling using a spring-shaped microcatheter is a useful and safe technique for treating ultrawide-necked circumferential aneurysm or fusiform aneurysms.


Assuntos
Embolização Terapêutica/métodos , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/terapia , Stents , Angiografia Digital/métodos , Prótese Vascular , Angiografia Cerebral/métodos , Embolização Terapêutica/instrumentação , Procedimentos Endovasculares/instrumentação , Procedimentos Endovasculares/métodos , Humanos , Angiografia por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
10.
Nutrients ; 10(1)2018 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-29316644

RESUMO

Gelidium elegans, a red alga native to the Asia Pacific region, contains biologically active polyphenols. We conducted a molecular biological study of the anti-diabetic effect of Gelidium elegans extract (GEE) in C57BL/KsJ-db/db mice. Mice that had been administered GEE had significantly lower body mass, water consumption, and fasting blood glucose than db/db controls. Moreover, hemoglobin A1c (HbA1c), an indicator of the glycemic status of people with diabetes, was significantly lower in mice that had been administered GEE. We also found that 200 mg/kg/day GEE upregulates the insulin signaling pathway by activating insulin receptor substrate-1 (IRS-1) and phosphoinositide 3-kinase (PI3K), and increasing the expression of glucose transporter type 4 (GLUT4). In parallel, mitogen-activated protein kinase (MAPK) activity was lower in GEE-treated groups. In summary, these findings indicate that GEE regulates glucose metabolism by activating the insulin signaling pathway and downregulating the MAPK signaling pathway.


Assuntos
Glicemia/efeitos dos fármacos , Diabetes Mellitus Tipo 2/prevenção & controle , Hipoglicemiantes/farmacologia , Proteínas Quinases Ativadas por Mitógeno/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Extratos Vegetais/farmacologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Rodófitas , Transdução de Sinais/efeitos dos fármacos , Animais , Biomarcadores/sangue , Glicemia/metabolismo , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/enzimologia , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Transportador de Glucose Tipo 4/metabolismo , Hemoglobinas Glicadas/metabolismo , Hipoglicemiantes/isolamento & purificação , Proteínas Substratos do Receptor de Insulina/metabolismo , Masculino , Camundongos Endogâmicos C57BL , Fosforilação , Extratos Vegetais/isolamento & purificação , Rodófitas/química , Fatores de Tempo
11.
Int J Mol Sci ; 18(11)2017 Nov 13.
Artigo em Inglês | MEDLINE | ID: mdl-29137190

RESUMO

Spirulina maxima, a microalga containing high levels of protein and many polyphenols, including chlorophyll a and C-phycocyanin, has antioxidant and anti-inflammatory therapeutic effects. However, the mechanisms where by Spirulina maxima ameliorates cognitive disorders induced by amyloid-ß 1-42 (Aß1-42) are not fully understood. In this study, we investigated whether a 70% ethanol extract of Spirulina maxima (SM70EE) ameliorated cognitive impairments induced by an intracerebroventricular injection of Aß1-42 in mice. SM70EE increased the step-through latency time in the passive avoidance test and decreased the escape latency time in the Morris water maze test in Aß1-42-injected mice. SM70EE reduced hippocampal Aß1-42 levels and inhibited amyloid precursor protein processing-associated factors in Aß1-42-injected mice. Additionally, acetylcholinesterase activity was suppressed by SM70EE in Aß1-42-injected mice. Hippocampal glutathione levels were examined to determine the effects of SM70EE on oxidative stress in Aß1-42-injected mice. SM70EE increased the levels of glutathione and its associated factors that were reduced in Aß1-42-injected mice. SM70EE also promoted activation of the brain-derived neurotrophic factor/phosphatidylinositol-3 kinase/serine/threonine protein kinase signaling pathway and inhibited glycogen synthase kinase-3ß phosphorylation. These findings suggested that SM70EE ameliorated Aß1-42-induced cognitive impairments by inhibiting the increased phosphorylation of glycogen synthase kinase-3ß caused by intracerebroventricular injection of Aß1-42 in mice.


Assuntos
Glicogênio Sintase Quinase 3 beta/metabolismo , Aprendizagem em Labirinto , Transtornos da Memória/tratamento farmacológico , Extratos Vegetais/uso terapêutico , Spirulina/química , Acetilcolinesterase/metabolismo , Peptídeos beta-Amiloides/administração & dosagem , Peptídeos beta-Amiloides/toxicidade , Animais , Glutationa/metabolismo , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Injeções Intraventriculares , Masculino , Transtornos da Memória/etiologia , Camundongos , Camundongos Endogâmicos ICR , Fragmentos de Peptídeos/administração & dosagem , Fragmentos de Peptídeos/toxicidade , Fosforilação , Extratos Vegetais/farmacologia , Processamento de Proteína Pós-Traducional
12.
Phytomedicine ; 33: 7-13, 2017 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-28887923

RESUMO

BACKGROUND: Pterostilbene is a stilbenoid and major compound and has diverse biological activities, such as antioxidant, anti-cancer, and anti-inflammatory. However, it has not been shown whether pterostilbene affects the mitotic clonal expansion during adipogenesis in 3T3-L1 cells. PURPOSE: In the present study, we aimed to demonstrate the detailed mechanism of pterostilbene on anti-adipogenesis in 3T3-L1 cells. METHODS: Preadipocytes were converted to adipocytes through treatment with MDI (IBMX; 3-isobutyl-1-methylxanthine, DEX; dexamethasone, insulin) in 3T3-L1 cells. Oil Red O staining was performed to measure intracellular lipid accumulation. Western blot analysis was conducted to analyze protein expressions. RESULTS: Our results showed that pterostilbene decreased the lipid accumulation compared to MDI-induced differentiation, using Oil Red O staining. Next, we found that pterostilbene suppressed the expression of C/EBPα, PPARγ, and aP2 as well as the mitotic clonal expansion-associated proteins CHOP10 and C/EBPß, by western blot analysis. Our results indicated that pterostilbene may repress adipocyte differentiation through the activation of HO-1 expression prior to entering into the mitotic clonal expansion in 3T3-L1 cells. RNA interference was used to determine whether HO-1 acts as a regulator of CHOP10. CONCLUSION: Our results revealed that pterostilbene induced HO-1 expression which acts as a regulator of CHOP10. Together, we demonstrated that pterostilbene suppresses the initiation of mitotic clonal expansion via up-regulation of HO-1 expression during adipocyte differentiation of 3T3-L1 cells.


Assuntos
Adipócitos/efeitos dos fármacos , Adipogenia/efeitos dos fármacos , Heme Oxigenase-1/metabolismo , Proteínas de Membrana/metabolismo , Estilbenos/farmacologia , Células 3T3-L1 , Adipócitos/citologia , Animais , Proteína alfa Estimuladora de Ligação a CCAAT/metabolismo , Proteína beta Intensificadora de Ligação a CCAAT/metabolismo , Diferenciação Celular , Camundongos , PPAR gama/metabolismo , Fator de Transcrição CHOP/metabolismo , Regulação para Cima
13.
Molecules ; 22(8)2017 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-28817076

RESUMO

Spirulina maxima is a microalgae which contains flavonoids and other polyphenols. Although Spirulina maxima 70% ethanol extract (SM70EE) has diverse beneficial effects, its effects on neurotoxicity have not been fully understood. In this study, we investigated the neuroprotective effects of SM70EE against trimethyltin (TMT)-induced neurotoxicity in HT-22 cells. SM70EE inhibited the cleavage of poly-ADP ribose polymerase (PARP). Besides, ROS production was decreased by down-regulating oxidative stress-associated enzymes. SM70EE increased the factors of brain-derived neurotrophic factor (BDNF)/cyclic AMPresponsive elementbinding protein (CREB) signalling pathways. Additionally, acetylcholinesterase (AChE) was suppressed by SM70EE. Furthermore, we investigated whether SM70EE prevents cognitive deficits against scopolamine-induced neurotoxicity in mice by applying behavioral tests. SM70EE increased step-through latency time and decreased the escape latency time. Therefore, our data suggest that SM70EE may prevent TMT neurotoxicity through promoting activation of BDNF/CREB neuroprotective signaling pathways in neuronal cells. In vivo study, SM70EE would prevent cognitive deficits against scopolamine-induced neurotoxicity in mice.


Assuntos
Extratos Celulares/química , Neurônios/efeitos dos fármacos , Síndromes Neurotóxicas/tratamento farmacológico , Spirulina/química , Animais , Fator Neurotrófico Derivado do Encéfalo/genética , Proteína de Ligação a CREB/genética , Extratos Celulares/farmacologia , Linhagem Celular , Flavonoides/química , Flavonoides/farmacologia , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Camundongos , Neurônios/patologia , Fármacos Neuroprotetores/farmacologia , Síndromes Neurotóxicas/patologia , Poli(ADP-Ribose) Polimerases/genética , Polifenóis/química , Polifenóis/farmacologia , Transdução de Sinais/efeitos dos fármacos
14.
Nutrients ; 9(4)2017 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-28358328

RESUMO

The incidence of obesity is rising at an alarming rate throughout the world and is becoming a major public health concern with incalculable social and economic costs. Gelidium elegans (GENS), also previously known as Gelidium amansii, has been shown to exhibit anti-obesity effects. Nevertheless, the mechanism by which GENS is able to do this remains unclear. In the present study, our results showed that GENS prevents high-fat diet (HFD)-induced weight gain through modulation of the adenosine monophosphate-activated protein kinase (AMPK)-PR domain-containing16 (PRDM16)-uncoupling protein-1 (UCP-1) pathway in a mice model. We also found that GENS decreased hyperglycemia in mice that had been fed a HFD compared to corresponding controls. We also assessed the beneficial effect of the combined treatment with GENS and orlistat (a Food and Drug Administration-approved obesity drug) on obesity characteristics in HFD-fed mice. We found that in HFD-fed mice, the combination of GENS and orlistat is associated with more significant weight loss than orlistat treatment alone. Moreover, our results demonstrated a positive synergistic effect of GENS and orlistat on hyperglycemia and plasma triglyceride level in these animals. Thus, we suggest that a combination therapy of GENS and orlistat may positively influence obesity-related health outcomes in a diet-induced obese population.


Assuntos
Proteínas Quinases Ativadas por AMP/metabolismo , Fármacos Antiobesidade/farmacologia , Proteínas de Ligação a DNA/metabolismo , Lactonas/farmacologia , Obesidade/tratamento farmacológico , Rodófitas/química , Fatores de Transcrição/metabolismo , Proteína Desacopladora 1/metabolismo , Proteínas Quinases Ativadas por AMP/genética , Adiposidade/efeitos dos fármacos , Animais , Glicemia/metabolismo , Proteínas de Ligação a DNA/genética , Dieta Hiperlipídica , Modelos Animais de Doenças , Regulação da Expressão Gênica , Teste de Tolerância a Glucose , Insulina/sangue , Masculino , Camundongos , Camundongos Endogâmicos ICR , Tamanho do Órgão/efeitos dos fármacos , Orlistate , Extratos Vegetais/farmacologia , Transdução de Sinais , Fatores de Transcrição/genética , Proteína Desacopladora 1/genética , Aumento de Peso
15.
Medicine (Baltimore) ; 96(4): e5938, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28121936

RESUMO

RATIONALE: Remote cerebellar hemorrhage (RCH) is a rare complication of supratentorial and spinal surgeries, seldom requiring intervention but occasionally causing significant morbidity or even mortality. Although a number of theories have been proposed, the exact pathophysiology of RCH remains incompletely understood. PATIENT CONCERNS: We present a 62-year-old patient with RCH encountered following surgical clipping of an unruptured middle cerebral artery bifurcation aneurysm in a patient with previous cerebellar infarction. LESSONS: It is extremely rare, but sometimes, RCH can be life-threatening. It is necessary to check the patient's general condition, underlying diseases and medical history. And controlled drainage of the CSF seems to be most important. Arachnoidplasty may be a consideration and the position of the drain string might have to be carefully determined.


Assuntos
Doenças Cerebelares/etiologia , Aneurisma Intracraniano/cirurgia , Hemorragias Intracranianas/etiologia , Complicações Pós-Operatórias/etiologia , Evolução Fatal , Humanos , Masculino , Pessoa de Meia-Idade
16.
Planta Med ; 83(3-04): 245-253, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27525509

RESUMO

The present study was performed to investigate the molecular mechanism of 6-gingerol on adipocyte-mediated systemic inflammation in vitro and in high-fat diet-induced obese zebra fish. 6-Gingerol decreased adipogenesis due to the suppression of adipocyte differentiation markers, including peroxisome proliferator-activated receptor gamma, CCAATT enhancer binding protein α, and adipocyte protein 2, and triglyceride synthesis enzymes, including sterol regulatory element-binding protein-1, fatty acid synthase, lysophosphatidic acid acyltransferase, and acyl-coA : diacylglycerol acyltransferase 1, in 3T3-L1. A coculture insert system using 3T3-L1 with RAW 264.7 (coculture insert system using fully differentiated 3T3-L1 cells with RAW 264.7 macrophages) revealed that 6-gingerol increased anti-inflammatory cytokine interleukin-10. The expression of TNFα, monocyte chemotactic protein-1, interleukin-1ß, and interleukin-6 were decreased in the coculture insert system using fully differentiated 3T3-L1 cells with RAW 264.7 macrophages treated with 6-gingerol. Moreover, the coculture insert system using fully differentiated 3T3-L1 cells with RAW 264.7 macrophages treated with 6-gingerol inhibited the protein expression of TNFα and monocyte chemotactic protein-1 in RAW 264.7. 6-Gingerol decreased c-JUN N-terminal kinase and I kappa B kinase beta and its downstream target AP-1 expression in the coculture insert system using fully differentiated 3T3-L1 cells with RAW 264.7 macrophages. Furthermore, 6-gingerol decreased the expression of inducible nitric oxide synthase stimulated by the coculture insert system using fully differentiated 3T3-L1 cells with RAW 264.7 macrophages in RAW 264.7 and attenuated nitric oxide production in diet-induced obese zebra fish. Our results suggest that 6-gingerol suppresses inflammation through the regulation of the c-JUN N-terminal kinase-I kappa B kinase beta and its downstream targets.


Assuntos
Adipócitos/efeitos dos fármacos , Catecóis/farmacologia , Álcoois Graxos/farmacologia , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Obesidade/tratamento farmacológico , Obesidade/metabolismo , Células 3T3-L1 , Aciltransferases/metabolismo , Adipócitos/citologia , Adipócitos/metabolismo , Adipogenia/efeitos dos fármacos , Animais , Citocinas/metabolismo , Diacilglicerol O-Aciltransferase/metabolismo , Dieta Hiperlipídica , Regulação para Baixo/efeitos dos fármacos , Ácido Graxo Sintases/metabolismo , Proteínas de Ligação a Ácido Graxo/metabolismo , Quinase I-kappa B/metabolismo , Técnicas In Vitro , Inflamação/patologia , Proteínas Quinases JNK Ativadas por Mitógeno/metabolismo , Macrófagos/efeitos dos fármacos , Macrófagos/metabolismo , Camundongos , Óxido Nítrico/metabolismo , Obesidade/patologia , PPAR gama/efeitos dos fármacos , Células RAW 264.7 , Proteína de Ligação a Elemento Regulador de Esterol 1/metabolismo , Fator de Transcrição AP-1/metabolismo , Triglicerídeos/metabolismo , Peixe-Zebra
17.
Acta Neurochir (Wien) ; 158(1): 143-5, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26611689

RESUMO

Tolosa-Hunt syndrome is a rare cause of painful ophthalmoplegia due to idiopathic chronic granulomatous inflammation in the cavernous sinus. Usually clinical manifestations are well controlled by corticosteroid therapy, but steroid dependency or resistance is common. We report a case of marked improvement of Tolosa-Hunt syndrome without symptom relapse after Gamma Knife radiosurgery in a patient with steroid intolerance.


Assuntos
Radiocirurgia/métodos , Síndrome de Tolosa-Hunt/cirurgia , Corticosteroides/efeitos adversos , Resistência a Medicamentos , Feminino , Humanos , Pessoa de Meia-Idade
18.
J Korean Neurosurg Soc ; 58(4): 309-15, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26587182

RESUMO

OBJECTIVE: An advantage of surgical treatment over conservative treatment of spontaneous intracerebral hemorrhage (ICH) is controversial. Recent reports suggest that contrast extravasations on CT angiography (CTA) might serve as a crucial predictor of hematoma expansion and mortality. The purpose of this study was aimed at investigating the efficacy of surgical treatment in patients with spot sign positive ICH. METHODS: We used our institutional medical data search system to identify all adult patients who admitted for treatment of ICH between January 1, 2007 and January 31, 2012. Patients were classified two groups into a surgical group (n=27) and a conservative treatment group (n=28). Admission criteria were the following: age 20-79 years, spontaneous supratentorial ICH, Glasgow Coma Score Ranging from 9 to 14, ICH volume ≥20 mL, and treatment within 24 hours. RESULTS: Fifty-five patients were analyzed. There was no significant difference in the ICU stay between the conservative treatment group (7.36±3.66 days) and the surgical treatment group (6.93±2.20 days; p=0.950). There was a significant difference in the in-hospital stay between the conservative treatment group (13.93±8.87 days) and the surgical treatment group (20.33±6.37 days; p=0.001). Overall mortality at day 90 after ICH was 36.4%; this included 16 of 28 patients (57.1%) in the conservative group and 4 of 27 patients (14.8%) in the surgical group. In univariate analysis, there was a positive effect of the surgical treatment in reducing mortality at 90 days (p=0.002), Glasgow Outcome Scale (GOS) at 90-day (p=0.006), and modified Rankin Scale (mRS) at 90-day (p=0.023). In multivariate logistic analysis, there was a significant difference in mortality (odds ratio, 0.211; 95% confidence interval, 0.049-0.906; p=0.036) between the groups at 90-day follow-up. However, there was no significant difference in GOS (odds ratio, 0.371; 95% confidence interval, 0.031-4.446; p=0.434) and mRS (odds ratio, 1.041; 95% confidence interval, 0.086-12.637; p=0.975) between the groups at 90-day follow-up. CONCLUSION: In this study of surgical treatment of supratentorial ICH in patients with spot sign positive in CTA was associated with less mortality despite of long duration of in-hospital stay. We failed to show that clinical outcome benefit of surgical treatment compared with conservative treatment in patients with spot sign positive ICH.

19.
Eur J Med Chem ; 70: 10-21, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24128410

RESUMO

Synthesis of a new series of diarylureas and diarylamides possessing 4-aryl-8-amino(acetamido)quinoline scaffold is described. Their in vitro antiproliferative activities against ten melanoma cell lines were tested. Compounds 1l, 2l, 3c, and 4c showed the highest potency against A375P cell line with IC50 values in sub-micromolar scale. Compound 4c was equipotent to Vemurafenib against A375P. In addition, compounds 1l, 2a, and 2l showed high potency over the NCI-9 tested melanoma cell line panel. The IC50 values of compounds 1l and 2l were in 2-digit nanomolar scale over four and five cell lines, respectively. Compound 2l showed high, dose-dependent inhibition of ERK kinase. ADME profiling showed that compounds 1l, 2l, 3c, 4c, and 5b are estimated to be orally bioavailable.


Assuntos
Acetamidas/farmacologia , Amidas/química , Antineoplásicos/química , Antineoplásicos/farmacologia , Melanoma/tratamento farmacológico , Inibidores de Proteínas Quinases/farmacologia , Quinolinas/farmacologia , Ureia/química , Acetamidas/síntese química , Acetamidas/química , Antineoplásicos/síntese química , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Simulação por Computador , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , MAP Quinases Reguladas por Sinal Extracelular/antagonistas & inibidores , MAP Quinases Reguladas por Sinal Extracelular/metabolismo , Humanos , Melanoma/enzimologia , Melanoma/patologia , Quinases de Proteína Quinase Ativadas por Mitógeno/antagonistas & inibidores , Quinases de Proteína Quinase Ativadas por Mitógeno/metabolismo , Estrutura Molecular , Inibidores de Proteínas Quinases/síntese química , Inibidores de Proteínas Quinases/química , Quinolinas/síntese química , Quinolinas/química , Relação Estrutura-Atividade , Ureia/análogos & derivados
20.
Acta Neurochir (Wien) ; 155(9): 1717-24, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23793966

RESUMO

BACKGROUND: Schizencephaly is a developmental anomaly of the brain that is sometimes associated with intractable seizures. Patients that suffer from medically refractory seizures may be considered for surgical treatment. METHOD: Five patients with intractable epilepsy associated with schizencephaly were studied. Evaluation methods included medical history assessment, neurological examination, magnetic resonance imaging (MRI) with three-dimensional (3D) surface rendering, positron emission tomography (PET), video-electroencephalogram (EEG) monitoring with surface electrodes and subdural grid electrodes, sodium amobarbital test, and neuropsychological assessments. Topectomy was performed close to the schizencephalic cleft in two patients, and at an area distant from the cleft in one under the guidance of electrocorticography (ECoG). Temporal lobectomy was performed in two patients. RESULTS: MRI revealed unilateral schizencephaly in all five patients. Video-EEG monitoring recorded simple partial seizures in two patients and complex partial seizures in three patients. The epileptogenic zone was localized close to the schizencephalic cleft in two patients, distant to the cleft in one patient, and in the temporal lobe in two patients. Postoperatively, one of two patients with temporal lobectomy and one of three patients with topectomy were seizure-free at 1-year follow-up. Three patients experienced marked seizure reduction but were not seizure-free at 1 year; however, at the follow-up periods of 2.5 years and 6.5 years, two of these three patients were seizure free. One patient who underwent temporal lobectomy began to have very brief losses of consciousness lasting 1-3 s (3-4 times per year). Neurological complications included temporary upper monoparesis in one and hemiparesis in one. CONCLUSIONS: The abnormal cortex lining schizencephalic clefts and cortical tissues near the cleft may be epileptogenic. Areas distant to the cleft may also be the source of seizures. Careful evaluation should be performed to define the epileptogenic zone in patients with intractable epilepsy associated with schizencephaly, and meticulous resection of the epileptogenic zone can lead to good seizure control.


Assuntos
Epilepsia/cirurgia , Malformações do Desenvolvimento Cortical/cirurgia , Lobo Temporal/cirurgia , Adulto , Eletroencefalografia/métodos , Epilepsia/complicações , Epilepsia/patologia , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Malformações do Desenvolvimento Cortical/complicações , Testes Neuropsicológicos , Lobo Temporal/patologia , Tempo , Resultado do Tratamento , Adulto Jovem
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