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1.
J Clin Tuberc Other Mycobact Dis ; 36: 100455, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38983442

RESUMEN

Objectives: Nasopharyngeal tuberculosis is a rare form of tuberculosis in which Mycobacterium tuberculosis infects the nasopharyngeal tissue. In this study, we analyzed key clinical features to prevent misdiagnosis and to raise awareness of the condition, while recommending suitable treatments. We also report a case of nasopharyngeal tuberculosis presenting with nasal congestion and intermittent ear fullness, contributing valuable educational insight for diagnosis. Methods: Demographic and clinical data from patients with nasopharyngeal tuberculosis were collected from PubMed, Embase, Web of Science and the Cochrane Central Register of Controlled Trials up to September 2022. In total, 280 patients from 69 studies were analyzed. Results: Reports indicate that the incidence of nasopharyngeal tuberculosis has doubled every decade, particularly in Asia. Most patients are female, presenting with granulomatous pathology and findings such as masses, lymphoid hyperplasia, polypoid formations, or swelling on endoscopic examination. Common symptoms include nasal obstruction, hearing impairment, sore throat, and dysphagia, usually accompanied by cervical lymphadenopathy. The mean duration from symptom onset to diagnosis is ∼2.88 months, and the average time from the start of treatment to resolution of symptoms is âˆ¼ 4.90 months. The antituberculosis treatment regimen and duration are significantly associated with the time to resolution (r = -0.648, p = 0.003 and r = 0.584, p = 0.028, respectively). Conclusion: These results suggest that an extended regimen of antituberculosis drugs may expedite symptom relief. However, there is a need for more standardized data on patient outcomes and treatment efficacy due to the current lack of comprehensive data.

2.
Ann Otol Rhinol Laryngol ; 132(10): 1156-1167, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36433693

RESUMEN

OBJECTIVES: To evaluate the efficacy of topically applied tramadol in peritonsillar area for pain control and induction of perioperative morbidity in children undergoing adenotonsillectomy. METHODS: Two authors independently searched the databases (MEDLINE, SCOPUS, and Cochrane databases) up to April 2022 for randomized controlled trials comparing the efficacy of an intraoperative peritonsillar administered tramadol with placebo or other agents only in pediatric patients. The outcomes were postoperative pain scores, time to take the first pain reducing drugs, and postoperative nausea/vomiting. RESULTS: Our analysis was based on 17 trials. Peritonsillar administered tramadol significantly reduced postoperative pain at less than 20 minutes (SMD -1.5852, 95% CI [-2.3900; -0.7804]), 1 hour (SMD -1.5811, 95% CI [-2.3400; -0.8222]), 8 hours (SMD -1.0258, 95% CI [-1.8792; -0.1724]), 16 hours (SMD -0.8397, 95% CI [-1.4266; -0.2529]), and 1 day (SMD -1.0110, 95% CI [-1.5213; -0.5007]) and the time to take the first analgesic drug (SMD 1.6565, 95% CI [0.2838; 3.0293]) compared with the placebo. However, tramadol showed no significant difference on postoperative pain relief effects and the time to take the first analgesic drug compared to the other topical agents (bupivacaine, lidocaine, ketamine, and dexamethasone). Tramadol did not cause significant postoperative nausea and vomiting. CONCLUSIONS: This study demonstrated that intraoperatively applied topical tramadol could control postoperative pain and reduce the analgesic uptake compared with a control. However, the efficacy of tramadol in pain control was similar to other agents in pediatric adenotonsillectomy.


Asunto(s)
Tonsilectomía , Tramadol , Niño , Humanos , Tramadol/uso terapéutico , Analgésicos Opioides/uso terapéutico , Analgésicos/uso terapéutico , Tonsilectomía/efectos adversos , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/prevención & control , Dolor Postoperatorio/etiología , Náusea y Vómito Posoperatorios/epidemiología , Náusea y Vómito Posoperatorios/prevención & control , Método Doble Ciego
3.
Cancers (Basel) ; 14(17)2022 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-36077768

RESUMEN

BACKGROUND: To assess the safety and effectiveness of transoral robotic thyroidectomy (TORT) in thyroid tumor. METHODS: PubMed, Embase, Web of Science, SCOPUS, Cochrane database, and Google Scholar up to June 2022. Studies comparing outcomes and complications between TORT and control groups (robotic bilateral axillo-breast, trans-axillary, postauricular approach, conventional open thyroidectomy (OT), and transoral endoscopic approach) were analyzed. RESULTS: Ten studies of 1420 individuals. The operative time (SMD 1.15, 95%CI [0.48; 1.89]) was significantly longer and the number of retrieved lymph nodes (LNs) (SMD -0.27, 95%CI [-0.39; -0.16]) was fewer in TORT than in the control group. The postoperative cosmetic satisfaction score (SMD 0.60, 95%CI [0.28; 0.92]) was statistically higher in TORT than in the control group. In subgroup analysis, there was no significant difference between robotic surgeries. However, TORT had significantly longer operative times (SMD 2.08, 95%CI [0.95; 3.20]) and fewer retrieved LNs (SMD -0.32, 95%CI [-0.46; -0.17]) than OT. TORT satisfied significantly more patients in cosmetic view. However, it increased hospitalization days and postoperative pain on the operation day and first day compared to OT. CONCLUSIONS: TORT is not inferior to other robotic-assisted approaches. Its operation time and hospitalization days are longer and postoperative pain is greater than OT, although its cosmetic satisfaction is high.

4.
Radiol Med ; 127(10): 1124-1133, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36018486

RESUMEN

OBJECTIVE: To assess the diagnostic utility of various radiologic criteria such as the lateral margin or dislocation of the retromandibular vein (RMV), Utrecht line, facial nerve line, Conn's arc, lines passing from the lateral margin of the masseter muscle to the facial nerve trunk or RMV, minimum distance from the fascia to the tumor (MDFT), and direct tracing of the intraparotid facial nerve (DT) for differentiating a parotid deep lobe tumor from a superficial lobe tumor. METHODS: Twenty-one studies with 2225 participants from PubMed, Embase, Web of Science, Cochrane Library, SCOPUS, and Google Scholar up to March 2022 were analyzed. Sensitivity, specificity, and negative and positive predictive values of the methods were extracted. RESULTS: The diagnostic odds ratio (DOR) of radiologic criteria compared to surgical findings was 18.9109. The area under the summary receiver operating characteristic curve was 0.879. The sensitivity and specificity were 0.6663 and 0.9190. MDFT (DOR 61.2917) and DT (DOR 91.9883) showed superior results as diagnostic landmarks. For tumors crossing the anatomical criteria line, strict way (any tumor crossing the line) could help differentiate a deep lobe tumor more accurately than conventional way (> 50% of the tumor volume located medial to the line). CONCLUSION: Various radiologic criteria, especially MDFT and DT, showed good diagnostic accuracy for differentiating a parotid deep lobe tumor.


Asunto(s)
Neoplasias de la Parótida , Nervio Facial/patología , Humanos , Glándula Parótida/diagnóstico por imagen , Neoplasias de la Parótida/diagnóstico por imagen , Neoplasias de la Parótida/patología , Neoplasias de la Parótida/cirugía , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Sensibilidad y Especificidad
5.
Histol Histopathol ; 37(9): 839-852, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35634683

RESUMEN

Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by skin barrier dysfunction. Sargassum horneri (S. horneri) is a brown alga that has been widely used in traditional medicine of eastern Asian countries. Recent studies proved that a brown alga S. horneri has anti-inflammatory activity. In this study, we investigated the effect of S. horneri ethanol extract (SHE) against AD in 2,4-dinitrobenzene (DNCB) induced AD in NC/Nga mice. We observed that SHE treatment decreased the epidermal thickness and epidermal hyperplasia that had been worsened through DNCB application. Moreover, SHE significantly inhibited the proliferation of mast cells and decreased the expression of IL-13 on CD4⁺ cells prompted by elevated thymic stromal lymphopoietin (TSLP) expression in DNCB-induced AD in mice. We also demonstrated that SHE directly inhibited the expression of keratinocyte-produced TSLP known to exacerbate skin barrier impairment. Especially, the decrease of filaggrin, an integral component of proper skin barrier function through a function in aggregating keratin filaments, observed in DNCB-induced AD mice was significantly improved when treated with SHE. More importantly, we proved that SHE was able to decrease the serum levels of IgG1 and IgG2ₐ, two crucial factors of AD, indicating the protective effect of SHE. Taken together, our findings suggest that SHE may protect NC/Nga mice against DNCB-induced AD via promoting skin barrier function.


Asunto(s)
Dermatitis Atópica , Extractos Vegetales , Sargassum , Enfermedades de la Piel , Animales , Ratones , Antiinflamatorios/uso terapéutico , Citocinas/metabolismo , Dermatitis Atópica/inducido químicamente , Dermatitis Atópica/tratamiento farmacológico , Dinitrobencenos/efectos adversos , Inmunoglobulina G , Interleucina-13/metabolismo , Queratinas/metabolismo , Extractos Vegetales/farmacología , Polifenoles/farmacología , Sargassum/química , Piel/metabolismo , Enfermedades de la Piel/inducido químicamente , Enfermedades de la Piel/tratamiento farmacológico
6.
Pharm Biol ; 59(1): 1464-1472, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34726583

RESUMEN

CONTEXT: Sargassum horneri (Turner) C. Agardh (Sargassaceae) is a brown marine alga used in oriental medicine to treat allergic conditions. OBJECTIVE: This study clarifies the effect of polyphenol-containing S. horneri ethanol extract (SHE) on T-helper type-2 (Th2) polarisation. MATERIALS AND METHODS: All mice (BALB/c mice, n = 12) except in the healthy control group were first sensitised with an intraperitoneal injection of ovalbumin (OVA; 20 µg) and alum (2 mg) on Day 0 and Day 14. Similarly, phosphate-buffered saline (PBS) was injected according to the same schedule into the healthy control mice. After the final administration, splenocytes were obtained. OVA sensitised mice were challenged with OVA (100 µg/mL) in the absence or presence (62.5 and 125 µg/mL) of SHE while healthy control group remained untreated. RESULTS: SHE (0-1000 µg/mL) was not cytotoxic to splenocytes and demonstrated IC50 values of 3.27 and 3.92 mg/mL, respectively, at 24 and 48 h of incubation. SHE suppressed cell proliferation at concentrations ≥62.5 µg/mL. SHE treatment (125 µg/mL) subdued (by 1.8-fold) the population expansion of CD3+CD4+ helper T cells induced by OVA challenge. SHE attenuated the OVA-induced activation of respective transcription factors GATA3 and NLRP3. Simultaneously, highly elevated levels of cytokines interleukin (IL)-4 and IL-5 caused by OVA stimulation were removed completely and IL-13 suppressed by 1.5-fold. CONCLUSIONS: SHE exhibits Th2 immune suppression under OVA stimulation via GATA3- and NLRP3-dependent IL-4, IL-5, and IL-13 suppression. Therefore, SHE could be therapeutically useful for alleviating the symptoms of allergen-mediated immune diseases.


Asunto(s)
Extractos Vegetales/farmacología , Polifenoles/farmacología , Sargassum/química , Células Th2/inmunología , Animales , Citocinas/inmunología , Relación Dosis-Respuesta a Droga , Factor de Transcripción GATA3/metabolismo , Ratones , Ratones Endogámicos BALB C , Proteína con Dominio Pirina 3 de la Familia NLR/metabolismo , Ovalbúmina , Extractos Vegetales/administración & dosificación , Polifenoles/administración & dosificación , Polifenoles/aislamiento & purificación , Factor de Transcripción STAT5/metabolismo , Bazo/citología , Bazo/efectos de los fármacos , Bazo/inmunología
7.
Korean J Fam Med ; 41(5): 306-311, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32450678

RESUMEN

BACKGROUND: Recently, single-person households have increased in Korea and this trend may have potential public health implications and affect various health behaviors. This study investigated the associations between living alone and health behaviors such as smoking and alcohol consumption among Korean adults. METHODS: We used data from the 6th Korea National Health and Nutrition Examination Survey between 2013 and 2015 and a total of 17,088 adults were included. We performed a multivariable logistic regression analysis and calculated odds ratios (ORs) with 95% confidence intervals (CIs). RESULTS: Single-person households accounted for about 10% of the total participants. The proportions of currently smoking and heavy alcohol consumption were higher among individuals living alone than those living together among younger women and middle-aged and elderly men and women. In the multivariable logistic regression analysis, living alone was associated with increased odds of currently smoking compared to living together among middle-aged men and women (OR, 7.37; 95% CI, 2.33-23.32 in men and OR, 2.36; 95% CI, 1.04-5.36 in women) after adjusting for confounding variables. CONCLUSION: From this nationwide, population-based study, we found that living alone is associated with increased odds of currently smoking, especially in middle-aged people. Public health concerns may be warranted for middle-aged single-person households to reduce health risks related to smoking.

9.
J Korean Med Sci ; 33(52): e336, 2018 Dec 24.
Artículo en Inglés | MEDLINE | ID: mdl-30584414

RESUMEN

BACKGROUND: We aimed to investigate mucosal immunity related to forkhead box P3 (FOXP3+) regulatory T (Treg) cells, T helper 17 (Th17) cells and cytokines in pediatric inflammatory bowel disease (IBD). METHODS: Mucosal tissues from terminal ileum and colon and serum samples were collected from twelve children with IBD and seven control children. Immunohistochemical staining was done using anti-human FOXP3 and anti-RORγt antibodies. Serum levels of cytokines were analyzed using a multiplex assay covering interleukin (IL)-1ß, IL-4, IL-6, IL-10, IL-17A/F, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, interferon (IFN)-γ, soluble CD40L, and tumor necrosis factor-α. RESULTS: FOXP3+ Treg cells in the lamina propria (LP) of terminal ileum of patients with Crohn's disease were significantly (P < 0.05) higher than those in the healthy controls. RORγt+ T cells of terminal ileum tended to be higher in Crohn's disease than those in the control. In the multiplex assay, serum concentrations (pg/mL) of IL-4 (9.6 ± 1.5 vs. 12.7 ± 3.0), IL-21 (14.9 ± 1.5 vs. 26.4 ± 9.1), IL-33 (14.3 ± 0.9 vs. 19.1 ± 5.3), and IFN-γ (15.2 ± 5.9 vs. 50.2 ± 42.4) were significantly lower in Crohn's disease than those in the control group. However, serum concentration of IL-6 (119.1 ± 79.6 vs. 52.9 ± 39.1) was higher in Crohn's disease than that in the control. Serum concentrations of IL-17A (64.2 ± 17.2 vs. 28.3 ± 10.0) and IL-22 (37.5 ± 8.8 vs. 27.2 ± 3.7) were significantly higher in ulcerative colitis than those in Crohn's disease. CONCLUSION: Mucosal immunity analysis showed increased FOXP3+ T reg cells in the LP with Crohn's disease while Th17 cell polarizing and signature cytokines were decreased in the serum samples of Crohn's disease but increased in ulcerative colitis.


Asunto(s)
Citocinas/metabolismo , Inmunidad Mucosa , Enfermedades Inflamatorias del Intestino/patología , Linfocitos T Reguladores/metabolismo , Células Th17/metabolismo , Adolescente , Estudios de Casos y Controles , Ciego/patología , Niño , Colitis Ulcerosa/inmunología , Colitis Ulcerosa/patología , Enfermedad de Crohn/inmunología , Enfermedad de Crohn/patología , Citocinas/sangre , Femenino , Factores de Transcripción Forkhead/metabolismo , Humanos , Íleon/patología , Enfermedades Inflamatorias del Intestino/inmunología , Interleucina-17/sangre , Interleucina-6/sangre , Interleucinas/sangre , Masculino , Linfocitos T Reguladores/citología , Linfocitos T Reguladores/inmunología , Células Th17/citología , Células Th17/inmunología , Interleucina-22
10.
Acta Histochem ; 120(5): 477-489, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29853304

RESUMEN

Oxidative stress plays a crucial role in the progression of alcoholic liver diseases and substances of antioxidant property are of special interest for therapeutic purposes. We investigated the hepatoprotective effect of leaf extracts of Sasa quelpaertensis, an edible bamboo mainly cultivated in Jeju Island, South Korea. We examined the cytotoxicity of different extracts (distilled water, 20-80% EtOH) of S. quelpaertensis on HepG2 cells and their hepatoprotective effect on HepG2 cells stimulated by ethanol (800 mM, 24 h). Furthermore, we measured reactive oxygen species (ROS) production, ethanol toxicity induced cell death, and the activity of antioxidant enzymes. In in vivo experiments, liver damage was induced by oral administration of 5 g/kg ethanol with or without potent ethanol extract of S. quelpaertensis (10 or 100 mg/kg) 12 h interval for a total of 3 doses. Only 80% ethanol extract of S. quelpaertensis (SQEE80) exhibited cytoprotective effect on HepG2 cells against alcohol-induced toxicity. SQEE80 treatment (250, 500 µg/mL) in ethanol exposed HepG2 cells showed significant attenuation of ROS production and ethanol toxicity induced cell death. Furthermore, SQEE80 markedly increased the activity of antioxidant enzyme glutathione peroxidase 1 in ethanol exposed HepG2 cells compared to ethanol stimulated cells. In in vivo experiments, SQEE80 treatment evidently suppressed the alcohol-induced histopathological changes in liver, serum ethanol content, and expression of cytochrome P450 2E1. Furthermore, SQEE80 significantly reversed the reduction of glutathione level in the ethanol challenged liver. Taken together, we suggest the possibility of developing SQEE80 as a natural hepatoprotective substance in attenuating alcohol-induced oxidative stress.


Asunto(s)
Antioxidantes/química , Hepatopatías Alcohólicas/tratamiento farmacológico , Extractos Vegetales/química , Hojas de la Planta/química , Sasa/química , Animales , Antioxidantes/uso terapéutico , Western Blotting , Supervivencia Celular/efectos de los fármacos , Células Hep G2/efectos de los fármacos , Humanos , Inmunohistoquímica , Ratones , Estrés Oxidativo/efectos de los fármacos , Extractos Vegetales/uso terapéutico
11.
J Ethnopharmacol ; 224: 335-348, 2018 Oct 05.
Artículo en Inglés | MEDLINE | ID: mdl-29906537

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Sasa quelpaertensis Nakai is an edible dwarf bamboo cultivated mainly in Jeju Island, South Korea and its leaf displays various health-promoting properties including antioxidant scavenging. AIM OF THE STUDY: In this study, we aimed at elucidating its hepatoprotective effect against alcohol-induced fatty liver. METHODS: In in vitro study, we evaluated the cytotoxicity and hepatoprotective effect of different solvent fractions (aqua, butanol, chloroform, ethyl acetate and hexane) of 80% EtOH extract of S. quelpaertensis Nakai leaf. In vivo experiment performed using binge alcohol consumption model. RESULTS: Although all five fractions (0-1000 µg/mL) were non-cytotoxic to HepG2 cells, only ethyl acetate fraction (SQEA), rich in phenolic acids such as p-coumaric acid and flavonoids particularly myristin, showed hepatoprotective effect against EtOH (400 mM) in HepG2 cells. Furthermore, SQEA significantly decreased the ethanol induced cell death and enhanced the cell proliferation. In in vivo experiment using binge consumption model (5 g of EtOH/kg body weight in every 12 h for 3 times), SQEA treatment (10, 50 and 100 mg/kg) markedly reduced the alcohol induced histopathological changes and serum EtOH content, and reversed the reduction of glutathione level in ethanol challenged livers. Further, it suppressed the expression of cytochrome P450 2E1 (CYP2E1). In particular, SQEA activated AMP activated protein kinase (AMPK) pathway, and decreased the expression of tumor necrosis factor receptor-1 (TNFR1), which attenuated lipogenesis via decreased expression of fatty acid synthase (FAS). Inhibited lipogenesis due to SQEA treatment directed towards decreased perilipin-2 expression. These results indicate that SQEA has hypolipidemic effect which is mediated by decreased oxidative stress, increased fatty acid oxidation response and decreased lipogenesis. CONCLUSION: Our results suggest the possibility of developing SQEA as a natural hepatoprotective agent potent in attenuating alcohol-induced fatty liver.


Asunto(s)
Proteínas Quinasas Activadas por AMP/metabolismo , Hígado Graso Alcohólico/tratamiento farmacológico , Flavonoides , Hidroxibenzoatos , Sustancias Protectoras , Sasa , Animales , Apoptosis/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Citocromo P-450 CYP2E1/metabolismo , Hígado Graso Alcohólico/metabolismo , Flavonoides/farmacología , Flavonoides/uso terapéutico , Glutatión/metabolismo , Células Hep G2 , Humanos , Hidroxibenzoatos/farmacología , Hidroxibenzoatos/uso terapéutico , Hígado/efectos de los fármacos , Hígado/patología , Ratones Endogámicos C57BL , Perilipina-2/metabolismo , Fitoterapia , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Hojas de la Planta , Sustancias Protectoras/farmacología , Sustancias Protectoras/uso terapéutico , Sustancias Reactivas al Ácido Tiobarbitúrico/metabolismo , Triglicéridos/metabolismo
12.
J Sci Food Agric ; 98(9): 3400-3408, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29280143

RESUMEN

BACKGROUND: Porphyra yezoensis is a red alga consumed mainly in Korea, Japan, and China for food. This study researches the immunological effect of pepsin extract of P. yezoensis (PPEE) on murine splenocytes. RESULTS: PPEE was not toxic on murine splenocytes and dramatically increased the proliferation of splenocytes compared with untreated control. Flow cytometry assay performed to sum up the effect of PPEE (31.3 and 62.5 µg mL-1 ) on major immune cells revealed that PPEE had no effect on the function of CD3e+ CD4+ T-helper cells, CD3e+ CD8+ T-cytotoxic cells, or CD44+ CD62L- effector T cells in splenocytes compared with untreated control. More importantly, CD45+ CD11b+ macrophage and dendritic cell populations and Ly-6C+ Ly-6G+ macrophages/monocytes in splenocytes were activated by PPEE treatment compared with untreated control. Further experiments showed that PPEE treatment increased the secretion of macrophage-derived cytokines such as interleukin-1ß, tumor necrosis factor-α, and interleukin-12, and macrophage-activating cytokines interferon-γ and interleukin-10 compared with untreated control. CONCLUSION: Taken together, these results suggest that PPEE has an immune stimulatory effect on macrophages, dendritic cells, and memory T cells. This property signifies the potential medicinal value of PPEE in clinical implications for immune-compromised diseases. © 2017 Society of Chemical Industry.


Asunto(s)
Pepsina A/metabolismo , Porphyra/química , Bazo/efectos de los fármacos , Bazo/inmunología , Animales , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , China , Citocinas/metabolismo , Células Dendríticas/efectos de los fármacos , Células Dendríticas/inmunología , Japón , Activación de Macrófagos/efectos de los fármacos , Macrófagos/efectos de los fármacos , Macrófagos/inmunología , Ratones , Ratones Endogámicos C57BL , República de Corea , Bazo/citología , Linfocitos T/efectos de los fármacos , Linfocitos T/inmunología
13.
Am J Chin Med ; 45(5): 1003-1016, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28659035

RESUMEN

Cells of the hematopoietic system are uniquely radiosensitive due to their rapid proliferation. Consequently, immune suppression readily and undesirably results from irradiation. Our previous studies demonstrated that geraniin isolated from Nymphaea tetragona var. angusta (water lily) had a protective effect on the splenocytes and intestinal tract of irradiated mice. This study was designed to assess the effectiveness of geraniin, an ellagitannin isolated from the water lily, in decreasing gamma ray irradiation-induced destruction of the hematopoietic system in mice. Geraniin treatment improved the survival time of bone marrow cells and maintained bone marrow integrity and also up-regulated the expression of stem cell receptors and the extent of cell mitosis. Geraniin also enhanced the proliferation and differentiation of immune cells that had been suppressed by irradiation. These results suggest geraniin is a promising agent for reconstituting hematopoietic cells after exposure to irradiation.


Asunto(s)
Diferenciación Celular/efectos de los fármacos , Diferenciación Celular/efectos de la radiación , Proliferación Celular/efectos de los fármacos , Proliferación Celular/efectos de la radiación , Glucósidos/farmacología , Células Madre Hematopoyéticas/citología , Taninos Hidrolizables/farmacología , Traumatismos Experimentales por Radiación/tratamiento farmacológico , Protectores contra Radiación/farmacología , Animales , Células de la Médula Ósea , Células Cultivadas , Rayos gamma/efectos adversos , Glucósidos/administración & dosificación , Glucósidos/aislamiento & purificación , Glucósidos/uso terapéutico , Células Madre Hematopoyéticas/efectos de la radiación , Taninos Hidrolizables/administración & dosificación , Taninos Hidrolizables/aislamiento & purificación , Taninos Hidrolizables/uso terapéutico , Inyecciones Intraperitoneales , Ratones Endogámicos C57BL , Nymphaea/química , Fitoterapia , Traumatismos Experimentales por Radiación/patología , Protectores contra Radiación/uso terapéutico , Bazo/citología
14.
Anat Cell Biol ; 50(1): 48-59, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28417055

RESUMEN

Glycogen synthase kinase (GSK)-3ß has been known as a pro-inflammatory molecule in neuroinflammation. The involvement of GSK-3ß remains unsolved in acute monophasic rat experimental autoimmune encephalomyelitis (EAE). The aim of this study was to evaluate a potential role of GSK-3ß in central nervous system (CNS) autoimmunity through its inhibition by lithium. Lithium treatment significantly delayed the onset of EAE paralysis and ameliorated its severity. Lithium treatment reduced the serum level of pro-inflammatory tumor necrosis factor a but not that of interleukin 10. Western blot analysis showed that the phosphorylation of GSK-3ß (p-GSK-3ß) and its upstream factor Akt was significantly increased in the lithium-treated group. Immunohistochemical examination revealed that lithium treatment also suppressed the activation of ionized calcium binding protein-1-positive microglial cells and vascular cell adhesion molecule-1 expression in the spinal cords of lithium-treated EAE rats. These results demonstrate that lithium ameliorates clinical symptom of acute monophasic rat EAE, and GSK-3 is a target for the suppression of acute neuroinflammation as far as rat model of human CNS disease is involved.

15.
Pharm Biol ; 55(1): 306-319, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27927068

RESUMEN

CONTEXT: Beetroot [Beta vulgaris Linné (Chenopodiaceae)], a vegetable usually consumed as a food or a medicinal plant in Europe, has been reported to have antioxidant and anti-inflammatory properties. Since the lymphohematopoietic system is the most sensitive tissue to ionizing radiation, protecting it from radiation damage is one of the best ways to decrease detrimental effects from radiation exposure. OBJECTIVE: In this study, we evaluated the radio-protective effects of beetroot in hematopoietic stem cells (HSCs) and progenitor cells. MATERIALS AND METHODS: Beetroot extract was administered at a dose of 400 mg/mouse per os (p.o.) three times into C57BL/6 mice and, at day 10 after γ-ray irradiation, diverse molecular presentations were measured and compared against non-irradiated and irradiated mice with PBS treatments. Survival of beetroot-fed and unfed irradiated animal was also compared. RESULTS: Beetroot not only stimulated cell proliferation, but also minimized DNA damage of splenocytes. Beetroot also repopulated S-phase cells and increased Ki-67 or c-Kit positive cells in bone marrow. Moreover, beetroot-treated mice showed notable boosting of differentiation of HSCs into burst-forming units-erythroid along with increased production of IL-3. Also, beetroot-treated mice displayed enhancement in the level of hematocrit and hemoglobin as well as the number of red blood cell in peripheral blood. Beetroot diet improved survival rate of lethally exposed mice with a dose reduction factor (DRF) of 1.1. DISCUSSION AND CONCLUSION: These results suggest that beetroot has the potency to preserve bone marrow integrity and stimulate the differentiation of HSCs against ionizing radiation.


Asunto(s)
Beta vulgaris/química , Médula Ósea/efectos de los fármacos , Rayos gamma/efectos adversos , Hematínicos/farmacología , Hematopoyesis/efectos de los fármacos , Células Madre Hematopoyéticas/efectos de los fármacos , Tolerancia Inmunológica/efectos de los fármacos , Factores Inmunológicos/farmacología , Protectores contra Radiación/farmacología , Animales , Apoptosis/efectos de los fármacos , Apoptosis/efectos de la radiación , Médula Ósea/inmunología , Médula Ósea/patología , Médula Ósea/efectos de la radiación , Proliferación Celular/efectos de los fármacos , Proliferación Celular/efectos de la radiación , Células Cultivadas , Daño del ADN/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Hematínicos/aislamiento & purificación , Hematopoyesis/efectos de la radiación , Células Madre Hematopoyéticas/inmunología , Células Madre Hematopoyéticas/patología , Células Madre Hematopoyéticas/efectos de la radiación , Tolerancia Inmunológica/efectos de la radiación , Factores Inmunológicos/aislamiento & purificación , Interleucina-3/metabolismo , Ratones Endogámicos C57BL , Fitoterapia , Raíces de Plantas , Plantas Medicinales , Protectores contra Radiación/aislamiento & purificación , Bazo/efectos de los fármacos , Bazo/inmunología , Bazo/efectos de la radiación , Factores de Tiempo , Irradiación Corporal Total/efectos adversos
16.
Food Sci Biotechnol ; 25(6): 1693-1700, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-30263464

RESUMEN

Emodin, one of the major compounds in the herb Reynoutria elliptica, is known to maintain immunosuppressive, anti-allergic, anti-cancer, and anti-inflammatory effects. In this study, we assessed the possibility of using emodin to induce apoptosis in stimulated immune cells in vitro. After treatment with emodin and concanavalin A (Con A), we observed DNA damage-induced apoptosis in splenocytes. Moreover, treatment with emodin and Con A increased the number of apoptotic splenocytes compared with untreated controls. Emodin also diminished the size of CD45R/B220+ cells, CD19+CD69+ cells, and cDC populations. These results indicate that emodin-induced apoptosis was involved in attenuating the immune activity promoted by DNA damage and in decreasing the number of CD45R/B220+ B cells and CD19+CD69+ activating B cells. This demonstration of emodin inducing apoptosis of Con A-stimulated immune cells indicates its potential utility as a therapy for diseases caused by abnormally activated immune cells.

18.
J Clin Sleep Med ; 10(5): 559-66, 2014 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-24812542

RESUMEN

STUDY OBJECTIVES: Obstructive sleep apnea syndrome (OSAS) and sleep disordered breathing (SDB) can affect the sympathetic adrenomedullary system (SAM). As a biomarker of SAM activity, salivary α-amylase (sAA) in pediatric subjects was evaluated whether it has any correlation with polysomnographic (PSG) parameters related to SDB. METHODS: Sixty-seven children who attended our clinic during 1 year were enrolled prospectively and underwent clinical examinations and in-lab polysomnography. The sAA was measured at 2 points--at night before PSG and in the early morning after PSG. RESULTS: Subjects were divided into control (n = 26, apneahypopnea index [AHI] < 1) and OSAS (n = 41, AHI ≥ 1) groups. The OSAS group was subdivided according to AHI (mild-moderate, 1 ≤ AHI < 10; severe, AHI ≥ 10). The sAA subtraction and ratio (p = 0.014 and p < 0.001, respectively) were significantly higher in severe OSAS than in the mild-moderate and control groups. Although oxygen desaturation index (ODI) and AHI were significantly associated with sAA, sAA in the OSAS group was not related to lowest oxygen saturation or adenotonsillar hypertrophy. CONCLUSION: sAA was well related to polysomnographic (PSG) parameters related to SDB, such as AHI and ODI. Therefore, screening test for sAA in children suspected to have SBD may help to identify OSAS patients from control.


Asunto(s)
Tonsila Faríngea/patología , Tonsila Palatina/patología , Saliva/enzimología , Síndromes de la Apnea del Sueño/patología , alfa-Amilasas/análisis , Adolescente , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Humanos , Hipertrofia , Masculino , Polisomnografía , Estudios Prospectivos , Síndromes de la Apnea del Sueño/enzimología
19.
Ear Nose Throat J ; 93(4-5): E16-20, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24817236

RESUMEN

We conducted a retrospective study to evaluate outcomes in patients with a craniopharyngioma who were managed via a transnasal transsphenoidal approach. Craniopharyngiomas exhibit histologically benign but "clinically malignant" features. Our study group was made up of 5 patients who underwent a total of 6 operations. The study population included 1 female and 5 males, aged 14 to 50 years (mean: 29.2). The overall rate of near-total tumor removal was 67%, but all patients eventually experienced a recurrence. Revision surgery to correct any severe postoperative complications was not required in any case. We found that the endoscopic transnasal transsphenoidal approach could be a safe and less invasive surgical option for the removal of craniopharyngiomas, although we were unable to remove all tumor or prevent recurrences.


Asunto(s)
Craneofaringioma/cirugía , Endoscopía/métodos , Neoplasias Hipofisarias/cirugía , Adolescente , Adulto , Craneofaringioma/patología , Femenino , Gadolinio , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/cirugía , Nariz , Neoplasias Hipofisarias/patología , Radioisótopos , Reoperación , Estudios Retrospectivos , Seno Esfenoidal , Resultado del Tratamiento
20.
Clin Exp Otorhinolaryngol ; 7(1): 30-5, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24587878

RESUMEN

OBJECTIVES: Recurrent mucosal disease and anatomic obstruction are commonly cited causes of failed endoscopic sinus surgery (ESS). Hyaluronic acid (HA) has been reported to reduce scarring and to promote wound healing in sinonasal surgery. HyFence is HA stabilized by 1, 4-butandiol diglycidyl ether, which makes it less-water-soluble and highly viscoelastic. The purpose of this study is to examine the anti-adhesion effect of HyFence after ESS compared to that of HA-CMC (Guardix-Sol). METHODS: Seventy-four patients with chronic rhinosinusitis who underwent ESS were included in the study. After the ESS procedure, Merocel was placed in the ethmoidectomized areas of the both sides. Five milliliters of Guardix-Sol was then applied to the Merocel of one side and HyFence LV was applied to the other side. The effect of the agents was evaluated at one, two, and four weeks after surgery by endoscopic examination. The severity of adhesion, edema, infection and complications were evaluated. RESULTS: There was no significant difference in the incidence of postoperative adhesion between the HyFence group and the Guardix-Sol group (P>0.05). Mean postoperative grades of edema and infection showed no significant difference between groups (P>0.05). There was no significant postoperative complications associated with either anti-adhesion agent (P>0.05). CONCLUSION: HyFence has equivalent anti-adhesion effect compared to Guardix-Sol following ESS.

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