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1.
J Med Food ; 27(4): 330-338, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38387002

RESUMO

Gastric cancer is the fifth most common cancer globally and the third leading cause of cancer-related mortality. Existing treatment strategies for gastric cancer often present numerous side effects. Consequently, recent studies have shifted toward devising new treatments grounded in safer natural substances. α-Pinene, a natural terpene found in the essential oils of various plants, such as Lavender angustifolia and Satureja myrtifolia, displays antioxidant, antibiotic, and anticancer properties. Yet, its impact on gastric cancer remains unexplored. This research assessed the effects of α-pinene in vitro using a human gastric adenocarcinoma cell-line (AGS) human gastric cancer cells and in vivo via a xenograft mouse model. The survival rate of AGS cells treated with α-pinene was notably lower than that of the control group, as revealed by the 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide assay. This decline in cell viability was linked to apoptosis, as verified by 4',6-diamidino-2-phenylindole and annexin V/propidium iodide staining. The α-pinene-treated group exhibited elevated cleaved-poly (ADP-ribose) polymerase and B cell lymphoma 2 (Bcl-2)-associated X (Bax) levels and reduced Bcl-2 levels compared with the control levels. Moreover, α-pinene triggered the activation of extracellular signal-regulated kinase, c-Jun N-terminal kinase, and p38 within the mitogen-activated protein kinase (MAPK) pathway. In the xenograft mouse model, α-pinene induced apoptosis through the MAPK pathway, devoid of toxicity. These findings position α-pinene as a promising natural therapeutic for gastric cancer.


Assuntos
Monoterpenos Bicíclicos , Neoplasias Gástricas , Humanos , Animais , Camundongos , Neoplasias Gástricas/tratamento farmacológico , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/patologia , Linhagem Celular Tumoral , Apoptose , MAP Quinases Reguladas por Sinal Extracelular , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Proliferação de Células
2.
Nat Med ; 29(12): 3162-3174, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38049620

RESUMO

Converging evidence indicates that impairments in executive function and information-processing speed limit quality of life and social reentry after moderate-to-severe traumatic brain injury (msTBI). These deficits reflect dysfunction of frontostriatal networks for which the central lateral (CL) nucleus of the thalamus is a critical node. The primary objective of this feasibility study was to test the safety and efficacy of deep brain stimulation within the CL and the associated medial dorsal tegmental (CL/DTTm) tract.Six participants with msTBI, who were between 3 and 18 years post-injury, underwent surgery with electrode placement guided by imaging and subject-specific biophysical modeling to predict activation of the CL/DTTm tract. The primary efficacy measure was improvement in executive control indexed by processing speed on part B of the trail-making test.All six participants were safely implanted. Five participants completed the study and one was withdrawn for protocol non-compliance. Processing speed on part B of the trail-making test improved 15% to 52% from baseline, exceeding the 10% benchmark for improvement in all five cases.CL/DTTm deep brain stimulation can be safely applied and may improve executive control in patients with msTBI who are in the chronic phase of recovery.ClinicalTrials.gov identifier: NCT02881151 .


Assuntos
Lesões Encefálicas Traumáticas , Estimulação Encefálica Profunda , Humanos , Lesões Encefálicas Traumáticas/terapia , Estimulação Encefálica Profunda/métodos , Estudos de Viabilidade , Qualidade de Vida , Tálamo/fisiologia
3.
Anticancer Res ; 43(7): 3047-3056, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37351981

RESUMO

BACKGROUND/AIM: The toxic side effects of therapies against breast cancer can affect the quality of life of patients, necessitating the use of naturally-derived therapeutics. Here, we investigated the effects of Dendropanax morbiferus H. Lév. leaf (DPL) extract on breast cancer cells in vitro and in vivo to assess its anticancer potential. MATERIALS AND METHODS: MDA-MB-231 breast cancer cells were treated with DPL, and the in vitro effect of DPL on the cells was evaluated through an MTT assay, DAPI staining, annexin V/propidium iodide double staining, and western blotting. The in vivo effects of DPL were measured through the MDA-MB-231 tumor xenograft mouse model. A TUNEL assay and immunohistochemistry were used to determine the extent of apoptosis and p-p38 expression in tumor tissues, respectively. RESULTS: DPL treatment significantly suppressed cell viability in a concentration-dependent manner. Furthermore, DPL treatment resulted in increased apoptotic body formation, apoptosis rate, cleaved poly (ADP-ribose) polymerase and B-cell lymphoma 2 (Bcl-2)-associated X protein levels, phosphorylation of mitogen-activated protein kinase (MAPK) pathway proteins, and decreased Bcl-2 levels. In addition, the antitumor effect in vivo was confirmed through the xenograft model, where decreased tumor volume and weight following DPL administration were observed. Further, apoptosis and increased p-p38 levels in tumor tissues were observed, and no pathological abnormalities were found in the liver or kidney. CONCLUSION: DPL inhibits proliferation through MAPK-mediated apoptosis in breast cancer cells and tumors, suggesting the potential of DPL as a natural therapeutic agent for breast cancer.


Assuntos
Neoplasias da Mama , Proteínas Quinases Ativadas por Mitógeno , Humanos , Animais , Camundongos , Feminino , Qualidade de Vida , Proliferação de Células , Neoplasias da Mama/patologia , Apoptose , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Proteínas Proto-Oncogênicas c-bcl-2 , Linhagem Celular Tumoral
4.
Neuroimage ; 262: 119584, 2022 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-36007822

RESUMO

The thalamus is a central integration structure in the brain, receiving and distributing information among the cerebral cortex, subcortical structures, and the peripheral nervous system. Prior studies clearly show that the thalamus atrophies in cognitively unimpaired aging. However, the thalamus is comprised of multiple nuclei involved in a wide range of functions, and the age-related atrophy of individual thalamic nuclei remains unknown. Using a recently developed automated method of identifying thalamic nuclei (3T or 7T MRI with white-matter-nulled MPRAGE contrast and THOMAS segmentation) and a cross-sectional design, we evaluated the age-related atrophy rate for 10 thalamic nuclei (AV, CM, VA, VLA, VLP, VPL, pulvinar, LGN, MGN, MD) and an epithalamic nucleus (habenula). We also used T1-weighted images with the FreeSurfer SAMSEG segmentation method to identify and measure age-related atrophy for 11 extra-thalamic structures (cerebral cortex, cerebral white matter, cerebellar cortex, cerebellar white matter, amygdala, hippocampus, caudate, putamen, nucleus accumbens, pallidum, and lateral ventricle). In 198 cognitively unimpaired participants with ages spanning 20-88 years, we found that the whole thalamus atrophied at a rate of 0.45% per year, and that thalamic nuclei had widely varying age-related atrophy rates, ranging from 0.06% to 1.18% per year. A functional grouping analysis revealed that the thalamic nuclei involved in cognitive (AV, MD; 0.53% atrophy per year), visual (LGN, pulvinar; 0.62% atrophy per year), and auditory/vestibular (MGN; 0.64% atrophy per year) functions atrophied at significantly higher rates than those involved in motor (VA, VLA, VLP, and CM; 0.37% atrophy per year) and somatosensory (VPL; 0.32% atrophy per year) functions. A proximity-to-CSF analysis showed that the group of thalamic nuclei situated immediately adjacent to CSF atrophied at a significantly greater atrophy rate (0.59% atrophy per year) than that of the group of nuclei located farther from CSF (0.36% atrophy per year), supporting a growing hypothesis that CSF-mediated factors contribute to neurodegeneration. We did not find any significant hemispheric differences in these rates of change for thalamic nuclei. Only the CM thalamic nucleus showed a sex-specific difference in atrophy rates, atrophying at a greater rate in male versus female participants. Roughly half of the thalamic nuclei showed greater atrophy than all extra-thalamic structures examined (0% to 0.54% per year). These results show the value of white-matter-nulled MPRAGE imaging and THOMAS segmentation for measuring distinct thalamic nuclei and for characterizing the high and heterogeneous atrophy rates of the thalamus and its nuclei across the adult lifespan. Collectively, these methods and results advance our understanding of the role of thalamic substructures in neurocognitive and disease-related changes that occur with aging.


Assuntos
Núcleos Talâmicos , Tálamo , Adulto , Idoso , Idoso de 80 Anos ou mais , Envelhecimento , Atrofia/patologia , Estudos Transversais , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Núcleos Talâmicos/diagnóstico por imagem , Tálamo/diagnóstico por imagem , Tálamo/patologia , Adulto Jovem
5.
J AOAC Int ; 104(6): 1514-1525, 2021 Dec 11.
Artigo em Inglês | MEDLINE | ID: mdl-34297098

RESUMO

BACKGROUND: Pyrrolizidine alkaloids (PAs) are naturally occurring plant toxins associated with potential hepatic and carcinogenic diseases in humans and animals. The concern over PAs has increased as the consumption of herbal medicines has increased. OBJECTIVE: This study aimed to develop and validate a sensitive analytical method to determine 28 PAs in five herbal medicines using liquid chromatography (LC)-electrospray ionization (ESI)-tandem mass spectrometry (MS/MS). Additionally, this study identified and quantified the amount of PAs in 10 samples of each herbal medicine. METHODS: The pretreatment in the proposed LC-MS/MS analysis comprised solvent extraction using 0.05M H2SO4 in 50% methanol and clean-up step using an mixed-mode cationic exchange (MCX)-solid-phase extraction (SPE) cartridge. The PA contents in herbal medicines were measured by using the developed method. RESULTS: The proposed method had recoveries ranging from 72.5-123.7% for the Atractylodis Rhizoma Alba, 70.6-151.7% for Alba Chrysanthmi Flos, 80.6-130.9% for Leonuri Herba, 70.3-122.9% for Gastrodiae Rhizoma, and 67.1-106.9% for Glycyrrhizae Radix. Even though a few samples showed recoveries in unsatisfactory values, the proposed method indicated entirely sufficient recoveries and precision in most samples. In monitoring results, only Leonuri Herba contained two PAs, which indicated Retrorsine (4/10) of 84.7-120.9 µg/kg and Senkirkine (10/10) of 60.9-170.7 µg/kg. CONCLUSION: The results obtained from this study demonstrate that the proposed method is fit for purpose to determine 28 PAs in herbal medicines. Therefore it could serve as a regulatory method capable of being used for controlling the risks of PAs in certain medicinal plants and dietary supplements. HIGHLIGHTS: An LC-MS/MS method for the determination of 28 pyrrolizidine alkaloids in herbal medicines was developed and validated through this study. The proposed method is considered as an useful method for monitoring pyroolizidine alkaloids in herbal medicines.


Assuntos
Plantas Medicinais , Alcaloides de Pirrolizidina , Cátions , Cromatografia Líquida de Alta Pressão , Cromatografia Líquida , Humanos , Alcaloides de Pirrolizidina/análise , Extração em Fase Sólida , Espectrometria de Massas por Ionização por Electrospray , Espectrometria de Massas em Tandem
6.
J Immigr Minor Health ; 23(4): 689-698, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32996048

RESUMO

Guided by the models of health assessment and social determinants of health, we examined predictors of self-rated physical, mental, oral, and cognitive health of older Korean immigrants. Data came from the Study of Older Korean Americans (SOKA; N = 2,061, Mean age = 73.2). Multivariate regression models of self-ratings of health were tested with health indicators (both domain-specific and other health indicators including chronic disease, functional disability, mental distress, problems with teeth or gums, and cognitive function) and sociocultural factors (acculturation, social network, and ethnic community social cohesion). For self-rated physical, mental, and oral health, indicators specific to the targeted domain played a primary role, with those of other health domains playing a secondary role. Acculturation and social network were significant predictors of all four measures. Findings highlight the importance of holistic health assessment that considers a wide range of health domains as well as sociocultural contexts.


Assuntos
Emigrantes e Imigrantes , Aculturação , Idoso , Asiático , Cognição , Humanos , República da Coreia
7.
Front Immunol ; 11: 68, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32117240

RESUMO

Uncontrolled activation of transforming growth factor (TGF)-ß results in a wide range of pathologic conditions. Therapeutic interventions to regulate TGF-ß signaling during fibrosis have been developed but the effectiveness is still limited. Here, we show that developmental endothelial locus-1 (Del-1) ameliorates fibrosis in mice by inhibiting αv integrin-mediated activation of TGF-ß. Del-1 bound to αvß6 integrin, an important activator of TGF-ß, and inhibited the binding of αvß6 integrin to the latency-associated peptide (LAP), thereby suppressing αv integrin-mediated activation of TGF-ß. Lack of Del-1 increased colocalization of αv integrin and LAP in the lungs, which was reversed by Del-1 supplementation. The crucial role of Del-1 in regulating TGF-ß activity was recapitulated in a mouse model of fibrosis using an adenovirus expressing inactive TGF-ß1. Del-1 supplementation improved the pathological characteristics of the mice and reduced mortality. Thus, we propose that Del-1 is a negative regulator of TGF-ß activation and a potential anti-fibrotic factor.


Assuntos
Proteínas de Ligação ao Cálcio/metabolismo , Moléculas de Adesão Celular/metabolismo , Fibrose Pulmonar/metabolismo , Fator de Crescimento Transformador beta/antagonistas & inibidores , Animais , Camundongos , Camundongos Endogâmicos C57BL , Transdução de Sinais/fisiologia
8.
Cell Rep ; 25(4): 934-946.e5, 2018 10 23.
Artigo em Inglês | MEDLINE | ID: mdl-30355499

RESUMO

Obesity-associated metabolic alterations are closely linked to low-grade inflammation in peripheral organs, in which macrophages play a central role. Using genetic labeling of myeloid lineage cells, we show that hypothalamic macrophages normally reside in the perivascular area and circumventricular organ median eminence. Chronic consumption of a high-fat diet (HFD) induces expansion of the monocyte-derived macrophage pool in the hypothalamic arcuate nucleus (ARC), which is significantly attributed to enhanced proliferation of macrophages. Notably, inducible nitric oxide synthase (iNOS) is robustly activated in ARC macrophages of HFD-fed obese mice. Hypothalamic macrophage iNOS inhibition completely abrogates macrophage accumulation and activation, proinflammatory cytokine overproduction, reactive astrogliosis, blood-brain-barrier permeability, and lipid accumulation in the ARC of obese mice. Moreover, central iNOS inhibition improves obesity-induced alterations in systemic glucose metabolism without affecting adiposity. Our findings suggest a critical role for hypothalamic macrophage-expressed iNOS in hypothalamic inflammation and abnormal glucose metabolism in cases of overnutrition-induced obesity.


Assuntos
Hipotálamo/patologia , Inflamação/enzimologia , Macrófagos/enzimologia , Óxido Nítrico Sintase Tipo II/metabolismo , Obesidade/enzimologia , Animais , Núcleo Arqueado do Hipotálamo/patologia , Barreira Hematoencefálica/patologia , Proliferação de Células , Dieta Hiperlipídica , Glucose/metabolismo , Inflamação/patologia , Ativação de Macrófagos , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Obesos , Óxido Nítrico Sintase Tipo II/antagonistas & inibidores , Obesidade/patologia , Células RAW 264.7
9.
Surgery ; 164(5): 1100-1108, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30172565

RESUMO

BACKGROUND: EW-7197 is an oral transforming growth factor ß type I receptor kinase inhibitor currently undergoing phase I clinical trials for cancer treatment in the United States. This study evaluates whether EW-7197 prevents peritoneal adhesion formation in a rat model. METHODS: Forty-eight female Wistar rats underwent peritoneal adhesion induction by the creation of peritoneal ischemic buttons and were randomly divided into 4 groups of 12 each. The control group received 0.3 mL vehicle by oral gavage once daily for 7 days after adhesion induction. The 10 mg and 20 mg groups received 10 or 20 mg/kg EW-7197 phosphate dissolved in 0.3 mL vehicle by oral gavage once daily for 7 days after adhesion induction. The rebound group received 20 mg/kg EW-7197 phosphate dissolved in 0.3 mL vehicle by oral gavage once daily for 7 days after adhesion induction followed by 0.3 mL vehicle only by gavage once daily for an additional 21 days. After the respective treatments were completed, the animals were euthanized. RESULTS: All rats survived until the end of the study without complications. EW-7197 reduced the incidence, quality, and tenacity of peritoneal adhesions in a dose-dependent manner. Fibrosis and collagen production were reduced in EW-7197-treated peritoneal ischemic buttons. Transforming growth factor ß/Smad2/3 signaling and mesothelial-to-mesenchymal transition were inhibited in EW-7197-treated peritoneal ischemic buttons. Discontinuation of EW-7197 was not associated with rebound effects. CONCLUSION: EW-7197 prevented peritoneal adhesion formation potentially via inhibition of transforming growth factor ß1/Smad2/3-induced mesothelial-to-mesenchymal transition in a rat model.


Assuntos
Compostos de Anilina/farmacologia , Doenças Peritoneais/prevenção & controle , Complicações Pós-Operatórias/prevenção & controle , Inibidores de Proteínas Quinases/farmacologia , Aderências Teciduais/prevenção & controle , Triazóis/farmacologia , Administração Oral , Compostos de Anilina/uso terapêutico , Animais , Modelos Animais de Doenças , Avaliação Pré-Clínica de Medicamentos , Transição Epitelial-Mesenquimal/efeitos dos fármacos , Feminino , Fibrose , Humanos , Doenças Peritoneais/etiologia , Doenças Peritoneais/patologia , Peritônio/efeitos dos fármacos , Peritônio/patologia , Peritônio/cirurgia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/patologia , Inibidores de Proteínas Quinases/uso terapêutico , Ratos , Ratos Wistar , Receptor do Fator de Crescimento Transformador beta Tipo I/antagonistas & inibidores , Transdução de Sinais/efeitos dos fármacos , Procedimentos Cirúrgicos Operatórios/efeitos adversos , Aderências Teciduais/etiologia , Aderências Teciduais/patologia , Resultado do Tratamento , Triazóis/uso terapêutico
10.
Mol Ther Methods Clin Dev ; 10: 165-178, 2018 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-30090842

RESUMO

Menkes disease is a lethal neurodegenerative disorder of copper metabolism caused by mutations in an evolutionarily conserved copper transporter, ATP7A. Based on our prior clinical and animal studies, we seek to develop a therapeutic approach suitable for application in affected human subjects, using the mottled-brindled (mo-br) mouse model that closely mimics the Menkes disease biochemical and clinical phenotypes. Here, we evaluate the efficacy of low-, intermediate-, and high-dose recombinant adeno-associated virus serotype 9 (rAAV9)-ATP7A delivered to the cerebrospinal fluid (CSF), in combination with subcutaneous administration of clinical-grade copper histidinate (sc CuHis, IND #34,166). Mutant mice that received high-dose (1.6 × 1010 vg) cerebrospinal fluid-directed rAAV9-rsATP7A plus sc copper histidinate showed 53.3% long-term (≥300-day) survival compared to 0% without treatment or with either treatment alone. The high-dose rAAV9-rsATP7A plus sc copper histidinate-treated mutant mice showed increased brain copper levels, normalized brain neurochemical levels, improvement of brain mitochondrial abnormalities, and normal growth and neurobehavioral outcomes. This synergistic treatment effect represents the most successful rescue to date of the mo-br mouse model. Based on these findings, and the absence of a large animal model, we propose cerebrospinal fluid-directed rAAV9-rsATP7A gene therapy plus subcutaneous copper histidinate as a potential therapeutic approach to cure or ameliorate Menkes disease.

11.
Biochem Biophys Res Commun ; 500(3): 783-789, 2018 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-29684347

RESUMO

Postoperative peritoneal adhesions, fibrous bands formed in the peritoneal cavity following surgery, represent a common, challenging and costly problem faced by surgeons and patients, for which effective therapeutic options are lacking. Since aberrant inflammation is one of the key mechanisms underlying peritoneal adhesion formation, here we set out to study the role of developmental endothelial locus-1 (Del-1), which has been recently identified as an endogenous inhibitor of inflammation, in the formation of postoperative peritoneal adhesions using a mouse model of peritoneal adhesions induced by ischemic buttons. Del-1-deficient mice had a higher incidence of adhesions, and their adhesions had higher quality and tenacity scores. Del-1 deficiency also led to enhanced inflammation mediators and collagen production. Finally, Del-1 supplementation decreased the incidence and severity of postoperative peritoneal adhesions. Taken together, these results indicate a protective role for Del-1 in postoperative peritoneal adhesion formation.


Assuntos
Proteínas de Transporte/metabolismo , Doenças Peritoneais/metabolismo , Doenças Peritoneais/prevenção & controle , Peritônio/patologia , Aderências Teciduais/metabolismo , Aderências Teciduais/prevenção & controle , Animais , Proteínas de Ligação ao Cálcio , Moléculas de Adesão Celular , Matriz Extracelular/metabolismo , Proteínas da Matriz Extracelular/metabolismo , Inflamação/patologia , Peptídeos e Proteínas de Sinalização Intercelular , Masculino , Camundongos Endogâmicos C57BL , Inibidor 1 de Ativador de Plasminogênio/metabolismo , Complicações Pós-Operatórias/etiologia , Receptores Fc/metabolismo , Índice de Gravidade de Doença , Aderências Teciduais/etiologia
12.
J Altern Complement Med ; 23(10): 787-793, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28714769

RESUMO

OBJECTIVES: This study aims to investigate the effects of meridian acupressure massage on body composition, edema, stress, and fatigue in postpartum women. DESIGN: A quasi-experimental design with a nonequivalent control group was utilized. SETTINGS/LOCATION: The Postpartum Care Center of Women's Hospital in Gwangju City, Republic of Korea. SUBJECTS: The study group consisted of 39 postpartum women, 19 in the experimental group and 20 in the control group, recruited from the postpartum care center of Women's Hospital in Gwangju city, South Korea. INTERVENTIONS: The experimental group was provided with meridian acupressure massage for 90 min daily over 5 days as an experimental therapy. OUTCOME MEASURES: Body composition (body weight, BMI, total body water, ECW ratio, LBM, and body fat) Edema (subjective edema, average girth of the upper limbs, and average girth of the lower limbs), Stress (psychological stress and physical stress), and Fatigue. RESULTS: The experimental group demonstrated a significantly larger decrease compared with the control group in measures of body composition, edema, total subjective stress, psychological stress, and subjective fatigue. CONCLUSIONS: Meridian acupressure massage can hasten the return to original body composition after childbirth.


Assuntos
Acupressão , Composição Corporal/fisiologia , Edema/terapia , Fadiga/terapia , Massagem , Período Pós-Parto/fisiologia , Adulto , Peso Corporal , Feminino , Humanos , Meridianos
13.
PLoS One ; 11(3): e0150952, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26959360

RESUMO

Atopic dermatitis (AD) is a complex disease that is caused by various factors, including environmental change, genetic defects, and immune imbalance. We previously showed that p-hydroxycinnamic acid (HCA) isolated from the roots of Curcuma longa inhibits T-cell activation without inducing cell death. Here, we demonstrated that oral administration of HCA in a mouse model of ear AD attenuates the following local and systemic AD manifestations: ear thickening, immune-cell infiltration, production of AD-promoting immunoregulatory cytokines in ear tissues, increased spleen and draining lymph node size and weight, increased pro-inflammatory cytokine production by draining lymph nodes, and elevated serum immunoglobulin production. HCA treatment of CD4+ T cells in vitro suppressed their proliferation and differentiation into Th1 or Th2 and their Th1 and Th2 cytokine production. HCA treatment of keratinocytes lowered their production of the pro-inflammatory cytokines that drive either Th1 or Th2 responses in AD. Thus, HCA may be of therapeutic potential for AD as it acts by suppressing keratinocyte activation and downregulating T-cell differentiation and cytokine production.


Assuntos
Ácidos Cumáricos/uso terapêutico , Dermatite Atópica/tratamento farmacológico , Dermatite Atópica/metabolismo , Queratinócitos/efeitos dos fármacos , Queratinócitos/metabolismo , Células Th1/metabolismo , Células Th2/metabolismo , Administração Oral , Animais , Diferenciação Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Ácidos Cumáricos/farmacologia , Dermatite Atópica/imunologia , Ensaio de Imunoadsorção Enzimática , Feminino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos C57BL , Propionatos , Reação em Cadeia da Polimerase em Tempo Real
14.
J Clin Nurs ; 24(23-24): 3459-68, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26333111

RESUMO

AIMS AND OBJECTIVES: This study evaluated the effects of handholding and spoken information provided on the anxiety of patients undergoing percutaneous vertebroplasty under local anaesthesia. BACKGROUND: A surgical intervention usually entails physical discomfort and psychological burden. Furthermore, patients under local anaesthesia are conscious during the surgical intervention, which leads to more anxiety, as patients are aware of their surroundings in the operating theatre. DESIGN: A quasi-experimental design with a nonequivalent control group was utilised. METHODS: Amsterdam preoperative anxiety scale assessed psychological anxiety, while blood pressure and pulse were measured to evaluate physiological anxiety. Participants were 94 patients undergoing percutaneous vertebroplasty in a spine hospital in Gwangju Metropolitan City, South Korea. Thirty patients were assigned to Experimental Group I, 34 to the Experimental Group II and 30 to the control group. During a surgical intervention, nurses held the hands of those in Experimental Group I and provided them with spoken information. Patients in Experimental Group II experienced only handholding. RESULTS: Psychological anxiety in Experimental Group I was low compared to those in Experimental Group II and the control group. In addition, there were significant decreases in systolic blood pressure in both Experimental Groups compared to the control group. CONCLUSIONS: Handholding and spoken information provided during a surgical intervention to mitigate psychological anxiety, and handholding to mitigate physiological anxiety can be used in nursing interventions with patients undergoing percutaneous vertebroplasty. RELEVANCE TO CLINICAL PRACTICE: Handholding and providing nursing information are possibly very useful interventions that are easily implemented by circulating nurses during a surgical intervention. In particular, handholding is a simple, economical and appropriate way to help patient in the operating theatre.


Assuntos
Ansiedade/etiologia , Ansiedade/prevenção & controle , Mãos , Educação de Pacientes como Assunto , Tato , Vertebroplastia/psicologia , Idoso , Idoso de 80 Anos ou mais , Anestesia Local , Ansiedade/psicologia , Pressão Sanguínea/fisiologia , Feminino , Frequência Cardíaca/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Salas Cirúrgicas , República da Coreia , Vertebroplastia/efeitos adversos
15.
Exp Hematol ; 42(10): 862-6.e3, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24971697

RESUMO

Indoleamine 2,3-dioxygenase (IDO) is a rate-limiting enzyme in tryptophan catabolism that plays an important role in the induction of immune tolerance. Its role in graft-versus-tumor effect after allogeneic stem cell transplantation (allo-SCT) remains unclear. Using a murine graft-versus-tumor model of reduced-intensity allo-HSCT followed by donor leukocyte infusion (DLI), we examined the role of IDO inhibition. Two stereoisomers of 1-methyl tryptophan (1-MT), a small-molecule inhibitor of IDO, reduced the growth of inoculated tumor in the mice that received DLI and had higher expression of IDO1 and IFNγ. However, L-1MT, but not D-1MT, mitigated tumor growth in mice that did not receive DLI and did not express IDO1 and IFNγ. Accordingly, both stereoisomers reduced plasma kynurenine concentrations early after DLI and enhanced in vitro cytotoxic lymphocyte function after allogeneic mixed lymphocyte reaction. Furthermore, L-1MT was more efficient in causing direct cytotoxic effects than D-1MT. Our results suggest that IDO inhibition can benefit anti-tumor therapy in the setting of reduced-intensity allo-SCT using DLI.


Assuntos
Efeito Enxerto vs Tumor/fisiologia , Fatores Imunológicos/farmacologia , Indolamina-Pirrol 2,3,-Dioxigenase/antagonistas & inibidores , Mastocitoma/terapia , Proteínas de Neoplasias/antagonistas & inibidores , Triptofano/análogos & derivados , Aloenxertos , Animais , Transplante de Medula Óssea , Linhagem Celular Tumoral , Citotoxicidade Imunológica , Avaliação Pré-Clínica de Medicamentos , Indução Enzimática , Efeito Enxerto vs Tumor/efeitos dos fármacos , Fatores Imunológicos/uso terapêutico , Indolamina-Pirrol 2,3,-Dioxigenase/genética , Indolamina-Pirrol 2,3,-Dioxigenase/fisiologia , Interferon gama/biossíntese , Cinurenina/biossíntese , Cinurenina/sangue , Transfusão de Leucócitos , Linfonodos/enzimologia , Teste de Cultura Mista de Linfócitos , Mastocitoma/tratamento farmacológico , Mastocitoma/enzimologia , Mastocitoma/imunologia , Camundongos , Camundongos Endogâmicos C57BL , Proteínas de Neoplasias/fisiologia , Quimera por Radiação , Baço/enzimologia , Estereoisomerismo , Fatores de Tempo , Quimeras de Transplante , Triptofano/química , Triptofano/metabolismo , Triptofano/farmacologia , Triptofano/uso terapêutico
16.
Asia Pac J Clin Nutr ; 21(4): 526-35, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23017311

RESUMO

PURPOSE: Vitamin D deficiency is a global health problem that is associated with increased risks of major diseases. This study investigated the status of 25-hydroxyvitamin D [25(OH)D] and its demographic and lifestyle determinants among Korean adults. METHODS: A total of 5,847 adults who had participated in the Korean National Health and Nutrition Examination Survey of 2008 (KNHANES) were included in the present study. Stepwise linear regression analysis was performed to determine the demographic and lifestyle determinants of 25(OH)D concentration. RESULTS: The weighted prevalence (standard error) of 25(OH)D deficiency (<20 ng/mL) was 49.9 (2.1)% among the males and 67.4 (1.7)% among the females. Severe 25(OH)D deficiencies (<10 ng/mL) were found in 5.7 (0.8)% of the males and 11.1 (1.0)% of the females. These peaked in spring and winter. Only 12.2 (1.1)% of the males and 6.4 (0.6)% of the females exhibited 25(OH)D sufficiency (>=30 ng/mL). The correlates with higher 25(OH)D concentration for both genders included summer, fall (vs spring), the 60s age group (vs 20s), rural residence (vs urban), moderate and vigorous physical activity (vs sedentary), alcohol consumption, and multivitamin supplementation. Higher education and unmarried status were inversely associated with 25(OH)D concentration for both genders. The strongest predictors of 25(OH)D concentration were season and residential area. CONCLUSIONS: 25(OH)D deficiency is a prevalent condition in Korea. Understanding the determinants of 25(OH)D can facilitate identification of persons at risk of 25(OH)D deficiency.


Assuntos
25-Hidroxivitamina D 2/sangue , Envelhecimento , Calcifediol/sangue , Estilo de Vida , Saúde da População Rural , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/etiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/etnologia , Estudos Transversais , Feminino , Humanos , Estilo de Vida/etnologia , Masculino , Pessoa de Meia-Idade , Inquéritos Nutricionais , Prevalência , República da Coreia/epidemiologia , Fatores de Risco , Saúde da População Rural/etnologia , Estações do Ano , Índice de Gravidade de Doença , Caracteres Sexuais , Deficiência de Vitamina D/epidemiologia , Deficiência de Vitamina D/fisiopatologia , Adulto Jovem
17.
Nutrition ; 27(11-12): 1202-5, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21621391

RESUMO

OBJECTIVE: This study investigated the effect of instant coffee on antioxidant enzyme activity and plasma cholesterol profile during exercise in rats. METHODS: Forty eight rats were fed a control diet with water (C) or a control diet with a coffee solution (CF). At the end of week 4, animals in each dietary group were subdivided into three exercise groups: before exercise (BE), during exercise (DE), and after exercise (AE). DE groups were exercised on a treadmill for 1 h immediately before being sacrificed. Animals in the AE groups were allowed to take a rest for 1 h after exercise. Antioxidant enzyme activities of the C and CF groups were evaluated with activities of catalase in plasma and superoxide dismutase, the ratio of reduced glutathione to oxidized glutathione, and the level of malondialdehyde in the liver. Plasma concentrations of triacylglycerol, total cholesterol, and high-density lipoprotein cholesterol were also compared. RESULTS: Final body weights and food intakes of the CF group were significantly lower than those of the C group. Catalase activities of the CF group were higher than those of the C group BE and AE. Reduced glutathione/oxidized glutathione of the CF group was significantly higher than that of the C group BE and DE. Superoxide dismutase activities of the CF group were higher than those of the C group regardless of exercise. Compared with the C group, there was an increase of total cholesterol and a decrease of high-density lipoprotein cholesterol levels in the CF group. Malondialdehyde levels in the CF group were higher than those in the C group BE and AE. CONCLUSION: It is suggested that freeze-dried instant coffee can promote activities of antioxidant enzymes and induce weight loss but also aggravate the plasma cholesterol profile in rats.


Assuntos
Antioxidantes/farmacologia , Colesterol/sangue , Café/química , Manipulação de Alimentos/métodos , Liofilização/métodos , Redução de Peso/efeitos dos fármacos , Animais , Catalase/metabolismo , Glutationa/análise , Dissulfeto de Glutationa/análise , Masculino , Malondialdeído/análise , Ratos , Ratos Sprague-Dawley , Superóxido Dismutase/metabolismo , Triglicerídeos/sangue
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