RESUMEN
Antibiotic abuse resulted in the emergence of multidrug-resistant Gram-positive pathogens, which pose a severe threat to public health. It is urgent to develop antibiotic substitutes to kill multidrug-resistant Gram-positive pathogens effectively. Herein, the antibacterial dialdehyde nanocrystalline cellulose (DNC) was prepared and characterized. The antibacterial activity and biosafety of DNC were studied. With the increasing content of aldehyde groups, DNC exhibited high antibacterial activity against Gram-positive pathogens in vitro. DNC3 significantly reduced the amounts of methicillin-resistant Staphylococcus aureus (MRSA) on the skin of infected mice models, which showed low cytotoxicity, excellent skin compatibility, and no acute oral toxicity. DNC exhibited potentials as antibiotic substitutes to fight against multidrug-resistant bacteria, such as ingredients in salves to treat skin infection and other on-skin applications.
Asunto(s)
Antibacterianos/uso terapéutico , Celulosa/análogos & derivados , Nanopartículas/uso terapéutico , Infecciones Cutáneas Estafilocócicas/tratamiento farmacológico , Animales , Antibacterianos/química , Antibacterianos/toxicidad , Línea Celular , Celulosa/química , Celulosa/uso terapéutico , Celulosa/toxicidad , Farmacorresistencia Bacteriana Múltiple/efectos de los fármacos , Femenino , Humanos , Masculino , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Ratones Endogámicos BALB C , Ratones Endogámicos C57BL , Pruebas de Sensibilidad Microbiana , Nanopartículas/química , Nanopartículas/toxicidad , Piel/efectos de los fármacos , Piel/microbiología , Piel/patología , Infecciones Cutáneas Estafilocócicas/patologíaRESUMEN
OBJECTIVE: A pressure ulcer (PU) is an area of tissue trauma caused by continuous and prolonged pressure, often associated with hospitalised patients immobilised due to neurological problems, negatively affecting their quality of life, and burdening the public budget. The aim of this study was to report the follow-up, for 45 weeks, of three patients with neurological lesions due to trauma who subsequently developed PUs, and who were treated with a combination of photodynamic therapy (PDT), low level laser therapy (LLLT) and cellulose membrane (CM). METHOD: PDT was mediated by the photosensitiser curcumin on a 1.5% emulsion base. Blue LED light at 450 nm was delivered continuously for 12 minutes at an irradiance of 30mW/cm2 and total energy delivered to the tissue was 22J/cm2. LLLT was performed with 660 nm laser, punctuated and continuous, twice a week with parameters: spot size 0.04cm2, power of 40mW, 10 seconds per point, fluence of 10J/cm2 and irradiance of 1000mW/cm2. RESULTS: All PUs had a significant reduction (range: 95.2-100%) of their area after 45 weeks of follow-up and two PUs had complete healing at 20 weeks and 30 weeks. All of the PUs showed a reduction in contamination with the PDT treatments in different proportions. CONCLUSION: From the results obtained, we conclude that the combination of PDT, LLLT and CM is a promising treatment for PU healing.
Asunto(s)
Celulosa/uso terapéutico , Terapia por Luz de Baja Intensidad , Fotoquimioterapia , Úlcera por Presión/terapia , Adulto , Estudios de Seguimiento , Humanos , Masculino , Úlcera por Presión/psicología , Calidad de VidaRESUMEN
Since early times, propolis has been used in folk medicine. The red propolis, collected in the northeast region of Brazil has been highlighted due to its popular use as an antimicrobial, with anti-inflammatory and healing properties, which are associated with its chemical composition. Here, we combine a bacterial membrane with red propolis to treat wounds of diabetic mice. This work aims to evaluate a biocurative from bacterial cellulose associated with red propolis in diabetic mice as wound healing model. Biocuratives from bacterial cellulose membrane and different extracts of red propolis were produced. The qualification and quantification of the presence of propolis chemical compounds in the membrane were investigated through high-resolution mass spectrometry (HRMS). Tests in vivo with biocuratives were performed on Swiss male diabetic mice induced by estroptozotocin. The animals were submitted to a surgical procedure and a single lesion was produced in the dorsal region, which was treated with the biocuratives. Macroscopic assessments were performed at 2, 7 and 14 postoperative days, and biopsies were collected on days 0, 7 and 14 for histological analysis, myeloperoxidase enzyme activity (MPO) and cytokines (TNF-α, IL-1ß, and TGF-ß). Altogether, ten compounds were identified in membranes and five were further quantified. The ethyl acetate extract showed more red propolis markers, and the most prevalent compound was Formononetin with 4423.00-2907.00 µg.g-1. Macroscopic analyses demonstrated that the two groups treated with red propolis (GMEBT and GMEAE) showed significantly greater healing capabilities compared to the control groups (GS and GMS). An increase in leukocyte recruitment was observed, confirmed by the activity of the enzyme myeloperoxidase (MPO) in GMEBT and GMEAE groups. The levels of TNF-α were significantly higher in wounds stimulated with red propolis, as well as in TGF-ß (GMEBT and GMEAE) on day 7. This was different from the IL-1ß levels that were higher in the control groups (GS and GMS). In summary, the biocuratives produced in this work were able to accelerate the wound healing process in a diabetic mouse model. In this way, the traditional knowledge of red propolis activity helped to create a biotechnological product, which can be used for diabetic wound healing purpose.
Asunto(s)
Acetobacteraceae/química , Celulosa/uso terapéutico , Diabetes Mellitus Experimental/tratamiento farmacológico , Própolis/uso terapéutico , Piel/efectos de los fármacos , Cicatrización de Heridas/efectos de los fármacos , Animales , Membrana Celular/química , Celulosa/administración & dosificación , Celulosa/aislamiento & purificación , Diabetes Mellitus Experimental/complicaciones , Masculino , Própolis/administración & dosificación , Piel/lesiones , Resultado del TratamientoRESUMEN
Burns are injuries caused mainly by thermal trauma, which can progress to unsatisfactory results healing. This study aimed to evaluate the biomaterial (bacterial cellulose membrane) and photobiomodulation, exclusively and associated, in the treatment of third degree burns in rats. Forty male Wistar rats (±280 g) were randomly divided into four groups, with 10 animals each: control group (CG); bacterial cellulose membrane group (MG); laser group (LG) and bacterial cellulose membrane and laser group (MG + L). The burn was caused with a 1 cm2 aluminum plate heated to 150⯰C and pressed on the animal's back for 10â¯s. The treatments were started immediately after induction of injury. For to laser irradiation (660â¯nm, 100â¯mW, 25â¯J/cm2 and energy of 1â¯J) on five distinct application points were used, on alternate days, a total of five sessions. After ten days of treatment the animals were euthanized for collected samples. One-way ANOVA and Tukey's tests (Pâ¯<â¯0.05) were used. Histological analysis revealed differences regarding the healing process phase in each experimental group. MG showed the proliferative phase. The LG demonstrated greater amount of blood vessels and immune expression of VEGF. However, when the treatments were combined, the number of vessels and the immune expression of VEGF factor was lower than LG. Thus, it was concluded that both treatments proposed (biomaterial and LLLT) are good alternatives for third degree burns when applied isolated because they stimulate the healing process by acting on the modulation of the inflammatory phase and promote stimulation of angiogenesis.
Asunto(s)
Quemaduras/terapia , Celulosa/farmacología , Terapia por Luz de Baja Intensidad/normas , Cicatrización de Heridas/efectos de la radiación , Análisis de Varianza , Animales , Celulosa/administración & dosificación , Celulosa/uso terapéutico , Ciclooxigenasa 2/análisis , Modelos Animales de Enfermedad , Terapia por Luz de Baja Intensidad/métodos , Masculino , Ratas , Ratas Wistar , Factor A de Crecimiento Endotelial Vascular/análisisRESUMEN
Infectious ocular disease, such as conjunctivitis, is common in cats and can be caused by several viruses and bacteria, either as a single infection or as co-infections. In this study, povidone-iodine (PVP-I), alone or compounded with hydroxyethyl cellulose (HEC), was investigated for its efficacy against these pathogens in vitro. Whilst PVP-I alone was effective at inhibiting feline herpesvirus type 1 (FHV-1), Chlamydia felis, and Mycoplasma felis, PVP-I with HEC exerted a synergistic inhibitory effect against FHV-1 and C. felis. In contrast, only minimal inhibition of feline calicivirus was observed. These results demonstrate that PVP-I, alone and in combination with HEC, is effective against some feline ocular pathogens when tested in cell lines in vitro. In vivo studies investigating the systemic safety, ocular tolerance, and clinical efficacy of this combination in cats would be necessary before it could be recommended as a therapy in affected cats.
Asunto(s)
Antiinfecciosos Locales/uso terapéutico , Enfermedades de los Gatos/tratamiento farmacológico , Celulosa/análogos & derivados , Conjuntivitis/veterinaria , Soluciones Oftálmicas/uso terapéutico , Povidona Yodada/uso terapéutico , Animales , Antiinfecciosos Locales/administración & dosificación , Antiinfecciosos Locales/farmacología , Calicivirus Felino/efectos de los fármacos , Enfermedades de los Gatos/microbiología , Gatos , Celulosa/administración & dosificación , Celulosa/uso terapéutico , Chlamydia/efectos de los fármacos , Infecciones por Chlamydophila/tratamiento farmacológico , Infecciones por Chlamydophila/veterinaria , Conjuntivitis/tratamiento farmacológico , Quimioterapia Combinada , Femenino , Infecciones por Herpesviridae/tratamiento farmacológico , Infecciones por Herpesviridae/veterinaria , Masculino , Pruebas de Sensibilidad Microbiana/veterinaria , Mycoplasma/efectos de los fármacos , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/veterinaria , Soluciones Oftálmicas/administración & dosificación , Povidona Yodada/administración & dosificación , Povidona Yodada/farmacología , Resultado del TratamientoRESUMEN
OBJECTIVE: To evaluate the efficacy and safety of wheat cellulose particles (testa triticum tricum purify, Fiberform) in the treatment of internal hemorrhoid. METHODS: A multicenter randomized controlled clinical trial was adopted. From October 2015 to July 2016, 60 patients with internal hemorrhoid were enrolled from three medical centers, including Department of Anorectum, Shuguang Hospital of Shanghai University of Traditional Chinese Medicine, Department of Anorectum, The Third Affiliated Hospital of Nanjing University of Chinese Medicine, Department of Anorectum, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine. Enrollment criteria: Patients aging from 18 to 65 years old; being diagnosed with the second or third grade internal hemorrhoid; having good communication skills and being able to complete the records and follow-ups according to the research program requirements. EXCLUSION CRITERIA: Patients combined with other anal diseases, or whose anus tube or rectum suffering occupying lesions; patients currently using other methods and defecation drugs in the treatment of their hemorrhoids; patients in pregnancy or with diseases of heart, liver, kidney or metabolic disorders; patients suffering from constipation due to other diseases and drugs, and long-term laxatives abusers. According to the random number table method, 60 patients were randomly divided into the combined treatment group [30 cases, wheat cellulose particles 1 bag each time, 2 times per day; Diosmin tablet 2 pills, 2 times per day] and the single treatment group [30 cases, Diosmin tablet 2 pills, 2 times per day]. The treatment courses for both groups were 7 days. According to the four-grade scoring method, the efficacy evaluation would be made on six indicators, which were the degree of hematochezia or bleeding, the degree of pain, hemorrhoid prolapse, the shapes and properties of stool, the defecation frequency and the defecation duration. The higher the score a participant got, the more severe the symptom was. The effectiveness was evaluated by the scoring reduction rate, and marked effectiveness and effectiveness were both found to be effective. Incidence of adverse events was compared between two groups before the treatment, and on postoperative 3-day and 7-day respectively. RESULTS: There were no significant differences between two groups in gender, age, internal hemorrhoids gradings, disease course, and onset time as well as the baseline data, such as the degree of hematochezia or bleeding before the treatment, the degree of pain, hemorrhoid prolapse, the shapes and properties of stool, the defecation frequency and the defecation duration (all P>0.05). After the seven-day treatment, there was significant difference in effective rate between combination group and single group [96.7%(29/30) vs. 66.7%(20/30), Z=-4.376, P=0.000]. Meanwhile, the scores of combined group and single group in hematochezia or bleeding were 0(0, 1) and 0(0, 2) (Z=9.241, P=0.002); in shapes and properties of stool were 0(0, 1) and 0(0, 1) (Z=5.364, P=0.021); in defecation frequency were 0(0, 1) and 0(0, 2) (Z=7.552, P=0.006); and in defecation duration were 0(0, 1) and 0(0, 2) (Z=4.425, P=0.035), whose differences were all significant. The scores of pain degree and hemorrhoid prolapse of two groups also decreased, but the difference was not statistically significant (P>0.05). During the treatment, abdominal pain, diarrhea and other adverse reactions were not observed in participants of two groups. CONCLUSION: Combination therapy of wheat cellulose particles (testa triticum tricum purify, Fiberform) can significantly improve the efficacy of internal hemorrhoid with safety and tolerance.
Asunto(s)
Celulosa/uso terapéutico , Hemorroides/terapia , Triticum , Adolescente , Adulto , Anciano , China , Defecación , Humanos , Persona de Mediana Edad , Resultado del Tratamiento , Adulto JovenRESUMEN
The development of new hetero-nanostructures for multifunctional applications in cancer therapy has attracted widespread attention. In this work, we put forward a facile approach to synthesize multifunctional hetero-nanostructures of cellulose nanocrystal (CNC)-gold nanoparticle hybrids wrapped with low-toxic hydroxyl-rich polycations to integrate versatile functions for effective cancer therapy. Biocompatible CNCs with the superior rod-like morphology for high cellular uptake were employed as substrates to flexibly load spherical gold nanoparticles (Au NPs) or gold nanorods (Au NRs) through gold-thiolate bonds, producing hetero-layered nanohybrids of CNC-Au NPs or CNC-Au NRs. Profound hydroxyl-rich cationic gene carrier, CD-PGEA (comprising ß-cyclodextrin cores and ethanolamine-functionalized poly(glycidyl methacrylate) arms), was then assembled onto the surface of CNC-Au nanohybrids through host-guest interaction and gold-thiolate bonds, where PEG was employed as the intermediate and spacer. The resultant CNC-Au-PGEA hetero-nanostructures exhibited excellent performances as gene carriers. Furthermore, CNC-Au NR-PGEA comprising Au NRs demonstrated favorable optical absorption properties and were validated for photoacoustic imaging and combined photothermal/gene therapy with considerable antitumor effects. The present work provided a flexible strategy for the construction of new multifunctional hetero-nanostructures with high antitumor efficacy.
Asunto(s)
ADN/administración & dosificación , Nanoestructuras/administración & dosificación , Animales , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Celulosa/administración & dosificación , Celulosa/química , Celulosa/uso terapéutico , Terapia Combinada , ADN/uso terapéutico , Femenino , Oro/administración & dosificación , Oro/química , Oro/uso terapéutico , Proteínas Fluorescentes Verdes/genética , Radical Hidroxilo/administración & dosificación , Radical Hidroxilo/química , Radical Hidroxilo/uso terapéutico , Metacrilatos/administración & dosificación , Metacrilatos/química , Metacrilatos/uso terapéutico , Ratones Endogámicos BALB C , Ratones Desnudos , Nanoestructuras/química , Nanoestructuras/uso terapéutico , Neoplasias/tratamiento farmacológico , Neoplasias/terapia , Técnicas Fotoacústicas , Fototerapia , Poliaminas/administración & dosificación , Poliaminas/química , Poliaminas/uso terapéutico , Polielectrolitos , Ratas , Proteína p53 Supresora de Tumor/genética , beta-Ciclodextrinas/administración & dosificación , beta-Ciclodextrinas/química , beta-Ciclodextrinas/uso terapéuticoRESUMEN
The aim of this study was to explore the therapeutic effect of Pleurotus eryngii cellulose on experimental fatty liver in rats. Rats were fed high-fat fodder to establish a rat fatty liver model, and were then fed different concentrations of Pleurotus eryngii cellulose for six weeks. Lipitor was used as a positive control. Measured levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), total cholesterol (TC), and total triglyceride (TG); the activity of malondialdehyde (MDA), superoxide dismutase (SOD), hepatic lipase (HL), and lipoprotein lipase; and liver histopathological changes. Successfully established rat fatty liver model after feeding high-fat fodder for one week. A diet of P. eryngii cellulose for six weeks significantly reduced ALT, AST, TC, and TG levels in rat serum (P < 0.01); TC and AST levels in P. eryngii cellulose high-dose group and Lipitor group were not significantly different from those of the control (P > 0.05). SOD activity increased significantly, while MDA and HL activity decreased (P < 0.05); fatty degeneration and fat accumulation both decreased in hepatic tissue. Hepatic protection of P. eryngii cellulose showed dose-related effect. P. eryngii cellulose can affect lipid metabolism, having therapeutic effects on fatty liver in rats.
Asunto(s)
Celulosa/farmacología , Hígado Graso/tratamiento farmacológico , Metabolismo de los Lípidos/efectos de los fármacos , Pleurotus , Alanina Transaminasa/sangre , Animales , Aspartato Aminotransferasas/sangre , Celulosa/uso terapéutico , Colesterol/sangre , Modelos Animales de Enfermedad , Hígado Graso/sangre , Hígado/efectos de los fármacos , Masculino , Ratas , Triglicéridos/sangreRESUMEN
In literature, contradictory effects of dietary fibers and their fermentation products, short-chain fatty acids (SCFA), are described: On one hand, they increase satiety, but on the other hand, they provide additional energy and promote obesity development. We aimed to answer this paradox by investigating the effects of fermentable and non-fermentable fibers on obesity induced by high-fat diet in gnotobiotic C3H/HeOuJ mice colonized with a simplified human microbiota. Mice were fed a high-fat diet supplemented either with 10% cellulose (non-fermentable) or inulin (fermentable) for 6 weeks. Feeding the inulin diet resulted in an increased diet digestibility and reduced feces energy, compared to the cellulose diet with no differences in food intake, suggesting an increased intestinal energy extraction from inulin. However, we observed no increase in body fat/weight. The additional energy provided by the inulin diet led to an increased bacterial proliferation in this group. Supplementation of inulin resulted further in significantly elevated concentrations of total SCFA in cecum and portal vein plasma, with a reduced cecal acetate:propionate ratio. Hepatic expression of genes involved in lipogenesis (Fasn, Gpam) and fatty acid elongation/desaturation (Scd1, Elovl3, Elovl6, Elovl5, Fads1 and Fads2) were decreased in inulin-fed animals. Accordingly, plasma and liver phospholipid composition were changed between the different feeding groups. Concentrations of omega-3 and odd-chain fatty acids were increased in inulin-fed mice, whereas omega-6 fatty acids were reduced. Taken together, these data indicate that, during this short-term feeding, inulin has mainly positive effects on the lipid metabolism, which could cause beneficial effects during obesity development in long-term studies.
Asunto(s)
Fibras de la Dieta/uso terapéutico , Suplementos Dietéticos , Ácidos Grasos Volátiles/metabolismo , Microbioma Gastrointestinal , Regulación Enzimológica de la Expresión Génica , Inulina/uso terapéutico , Hígado/enzimología , Animales , Fármacos Antiobesidad/metabolismo , Fármacos Antiobesidad/uso terapéutico , Celulosa/metabolismo , Celulosa/uso terapéutico , delta-5 Desaturasa de Ácido Graso , Dieta Alta en Grasa/efectos adversos , Fibras de la Dieta/metabolismo , Digestión , Ácidos Grasos Volátiles/sangre , Heces/microbiología , Fermentación , Vida Libre de Gérmenes , Inulina/metabolismo , Metabolismo de los Lípidos , Hígado/metabolismo , Masculino , Ratones Endogámicos C3H , Obesidad/etiología , Obesidad/metabolismo , Obesidad/microbiología , Obesidad/prevención & control , Probióticos/administración & dosificación , Probióticos/metabolismoRESUMEN
INTRODUCTION: Facial aging is a gradual process that involves a complex interaction of multiple factors including cutaneous photodamage and laxity, subcutaneous tissue volume loss, and bony resorption. These features have all been show to significantly improve with intense pulsed light (IPL), microfocused ultrasound (MFUS, Ultherapy), and poly-L-lactic acid (PLLA). METHODS: To review the use of IPL, MFUS, and PLLA in combination with the treatment of facial aging. RESULTS: Despite their extensive individual safety record, there is little data regarding combination therapy with these minimally invasive modalities. CONCLUSIONS: IPL, MFUS, and PLLA may be safely performed in a single treatment session to target multiple tissue planes concurrently without increased adverse events.
Asunto(s)
Celulosa/uso terapéutico , Fármacos Dermatológicos/uso terapéutico , Tratamiento de Luz Pulsada Intensa , Ácido Láctico/uso terapéutico , Manitol/uso terapéutico , Envejecimiento de la Piel , Terapia por Ultrasonido , Terapia Combinada/efectos adversos , Cara , Humanos , RejuvenecimientoRESUMEN
BACKGROUND: A nasally applied cellulose powder is increasingly used in many countries as a remedy for allergic rhinitis. In 2009, a 4-week study in birch pollen-allergic children showed a reduction in nasal symptoms. The best effect occurred on days with lower pollen counts. The present study in grass pollen-allergic adults used the same basic design. METHODS: In May 2013, a double-blind, placebo-controlled study was conducted in 108 patients with allergic rhinitis due to grass pollen (18-40 years of age). SMS on mobile phones were used as reminders of treatment and reporting of symptom scores. RESULTS: We found significant reductions in severity scores for sneezing, runny nose, stuffy nose and symptoms from eyes and lower airways, both separately and together (all p < 0.001). Reflective opinion of effect and guess on treatment at follow-up visits (both p < 0.001) confirmed a high efficacy. No clinically significant adverse effects were reported. CONCLUSIONS: The product provided significant protection against all seasonal allergic rhinitis symptoms from both upper and lower airways during the grass pollen season in an adult population. The magnitude and scope of efficacy support the use of the product as an early choice in the treatment of allergic rhinitis.
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Celulosa/uso terapéutico , Poaceae/inmunología , Polen/inmunología , Polvos/uso terapéutico , Rinitis Alérgica Estacional/tratamiento farmacológico , Administración por Inhalación , Adolescente , Adulto , Celulosa/administración & dosificación , Desensibilización Inmunológica , Método Doble Ciego , Femenino , Humanos , Masculino , Placebos , Rinitis Alérgica Estacional/inmunología , Encuestas y Cuestionarios , Adulto JovenRESUMEN
Many functional foods and dietary supplements have been reported to be beneficial for the management of dyslipidaemia, one of the major risk factors for CVD. Soluble fibres and legume proteins are known to be a safe and practical approach for cholesterol reduction. The present study aimed at investigating the hypocholesterolaemic effect of the combinations of these bioactive vegetable ingredients and their possible effects on the expression of genes regulating cholesterol homeostasis. A total of six groups of twelve rats each were fed, for 28 d, Nath's hypercholesterolaemic diets, differing in protein and fibre sources, being, respectively, casein and cellulose (control), pea proteins and cellulose (pea), casein and oat fibres (oat), casein and apple pectin (pectin), pea proteins and oat fibres (pea+oat) and pea proteins and apple pectin (pea+pectin). Administration of each vegetable-containing diet was associated with lower total cholesterol concentrations compared with the control. The combinations (pea+oat and pea+pectin) were more efficacious than fibres alone in modulating cholesterolaemia ( - 53 and - 54%, respectively, at 28 d; P< 0·005). In rats fed the diets containing oat fibres or apple pectin, alone or in combination with pea proteins, a lower hepatic cholesterol content (P< 0·005) and higher hepatic mRNA concentrations of CYP7A1 and NTCP were found when compared with the control rats (P< 0·05). In summary, the dietary combinations of pea proteins and oat fibres or apple pectin are extremely effective in lowering plasma cholesterol concentrations in rats and affect cellular cholesterol homeostasis by up-regulating genes involved in hepatic cholesterol turnover.
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Colesterol/metabolismo , Fibras de la Dieta/metabolismo , Dislipidemias/dietoterapia , Dislipidemias/metabolismo , Pisum sativum/química , Proteínas de Plantas/metabolismo , Animales , Avena/química , Ácidos y Sales Biliares/metabolismo , Enfermedades Cardiovasculares/prevención & control , Caseínas/uso terapéutico , Celulosa/uso terapéutico , Homeostasis , Hígado/metabolismo , Masculino , Malus/química , Pectinas/uso terapéutico , Ratas , Ratas Sprague-Dawley , Factores de Riesgo , Factores de TiempoRESUMEN
Loss of volume in the temples is an early sign of aging that is often overlooked by both the physician and the patient. Augmentation of the temple using soft tissue fillers improves the contours of the upper face with the secondary effect of lengthening and lifting the lateral brow. After replacement of volume, treatment of the overlying skin with skin-tightening devices or laser resurfacing help to complete a comprehensive rejuvenation of the temple and upper one-third of the face.
Asunto(s)
Técnicas Cosméticas , Estética , Frente/anatomía & histología , Rejuvenecimiento , Celulosa/uso terapéutico , Durapatita/uso terapéutico , Humanos , Ácido Hialurónico/análogos & derivados , Ácido Hialurónico/uso terapéutico , Ácido Láctico/uso terapéutico , Terapia por Láser , Manitol/uso terapéutico , Poliésteres , Polímeros/uso terapéutico , Siliconas/uso terapéutico , Envejecimiento de la Piel/efectos de los fármacos , Viscosuplementos/uso terapéuticoRESUMEN
OBJECTIVE: To compare the treatment outcome of scaling and root planing (SRP) in combination with systemic antibiotics, local antibiotic therapy and/or periodontal surgery. MATERIAL AND METHODS: One hundred and eighty-seven patients were assigned to eight groups treated by SRP plus none, one, two or three adjunctive treatments and monitored for 24 months in a randomized controlled clinical trial using a 2 × 2 × 2 factorial design. Systemic amoxicillin + metronidazole (SMA), local tetracycline delivery (LTC) and periodontal surgery (SURG) were evaluated as adjuncts. Changes in clinical attachment level (CAL) and probing pocket depth (PPD) were statistically evaluated by ancova of main effects. RESULTS: Effects of adjunctive therapy to SRP were minimal at 3 months. Between 3 and 6 months PPD reduction occurred particularly in patients receiving periodontal surgery. After 6 months, both CAL gain and PPD reduction reached a plateau that was maintained at 24 months in all groups. The 24-month CAL gain was improved by SMA (0.50 mm) while PPD was reduced by SMA (0.51 mm) and SURG (0.36 mm). Smoking reduced CAL gain and PPD reduction. CONCLUSION: Patients receiving adjunctive therapies generally exhibited improved CAL gain and/or PPD reduction when compared with the outcome of SRP alone. Only additive, not synergistic effects of the various adjunctive therapies were observed.
Asunto(s)
Amoxicilina/uso terapéutico , Antiinfecciosos/uso terapéutico , Metronidazol/uso terapéutico , Enfermedades Periodontales/terapia , Análisis de Varianza , Celulosa/uso terapéutico , Quimioterapia Adyuvante , Clorhexidina/uso terapéutico , Raspado Dental , Combinación de Medicamentos , Sistemas de Liberación de Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Procedimientos Quirúrgicos Orales , Pérdida de la Inserción Periodontal/terapia , Enfermedades Periodontales/tratamiento farmacológico , Enfermedades Periodontales/cirugía , Índice Periodontal , Bolsa Periodontal/terapia , Fumar/efectos adversos , Tetraciclina/uso terapéutico , Resultado del TratamientoRESUMEN
AIM: To investigate the effect of dietary fiber intake on constipation by a meta-analysis of randomized controlled trials (RCTs). METHODS: We searched Ovid MEDLINE (from 1946 to October 2011), Cochrane Library (2011), PubMed for articles on dietary fiber intake and constipation using the terms: constipation, fiber, cellulose, plant extracts, cereals, bran, psyllium, or plantago. References of important articles were searched manually for relevant studies. Articles were eligible for the meta-analysis if they were high-quality RCTs and reported data on stool frequency, stool consistency, treatment success, laxative use and gastrointestinal symptoms. The data were extracted independently by two researchers (Yang J and Wang HP) according to the described selection criteria. Review manager version 5 software was used for analysis and test. Weighted mean difference with 95%CI was used for quantitative data, odds ratio (OR) with 95%CI was used for dichotomous data. Both I(2) statistic with a cut-off of ≥ 50% and the χ(2) test with a P value < 0.10 were used to deï¬ne a signiï¬cant degree of heterogeneity. RESULTS: We searched 1322 potential relevant articles, 19 of which were retrieved for further assessment, 14 studies were excluded for various reasons, five studies were included in the analysis. Dietary fiber showed significant advantage over placebo in stool frequency (OR = 1.19; 95%CI: 0.58-1.80, P < 0.05). There was no significant difference in stool consistency, treatment success, laxative use and painful defecation between the two groups. Stool frequency were reported by five RCTs, all results showed either a trend or a significant difference in favor of the treatment group, number of stools per week increased in treatment group than in placebo group (OR = 1.19; 95%CI: 0.58-1.80, P < 0.05), with no significant heterogeneity among studies (I(2)= 0, P = 0.77). Four studies evaluated stool consistency, one of them presented outcome in terms of percentage of hard stool, which was different from others, so we included the other three studies for analysis. Two studies reported treatment success. There was significant heterogeneity between the studies (P < 0.1, I(2) > 50%). Three studies reported laxative use, quantitative data was shown in one study, and the pooled analysis of the other two studies showed no significant difference between treatment and placebo groups in laxative use (OR = 1.07; 95%CI 0.51-2.25), and no heterogeneity was found (P = 0.84, I(2)= 0). Three studies evaluated painful defecation: one study presented both quantitative and dichotomous data, the other two studies reported quantitative and dichotomous data separately. We used dichotomous data for analysis. CONCLUSION: Dietary fiber intake can obviously increase stool frequency in patients with constipation. It does not obviously improve stool consistency, treatment success, laxative use and painful defecation.
Asunto(s)
Estreñimiento/dietoterapia , Dieta , Fibras de la Dieta/uso terapéutico , Celulosa/uso terapéutico , Grano Comestible , Heces , Humanos , Laxativos , Extractos Vegetales/uso terapéutico , Plantago , Psyllium/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del TratamientoRESUMEN
Determination of antimicrobic activity of the preparations of Metrogyl denta, Cholisal and Solcoseryl on the complex culture of microorganisms employing the developed procedure was carried out. Degree of the antimicrobic action manifestation of each preparation was revealed.
Asunto(s)
Actiemil/farmacología , Antiinfecciosos/farmacología , Celulosa/análogos & derivados , Colina/análogos & derivados , Glicerol/análogos & derivados , Metronidazol/farmacología , Periodontitis/tratamiento farmacológico , Salicilatos/farmacología , Actiemil/uso terapéutico , Antiinfecciosos/uso terapéutico , Celulosa/farmacología , Celulosa/uso terapéutico , Colina/farmacología , Colina/uso terapéutico , Fluorescencia , Glicerol/farmacología , Glicerol/uso terapéutico , Humanos , Rayos Láser , Pruebas de Sensibilidad Microbiana , Boca/microbiología , Periodontitis/microbiología , Salicilatos/uso terapéuticoRESUMEN
Studies in our laboratory have previously demonstrated in hamsters a superior cholesterol-lowering ability of plant sterol (PS) esters enriched in stearate compared with linoleate. We therefore conducted a randomized, double-blind, 2-group parallel, placebo-controlled study to test the cholesterol-lowering properties of stearate-enriched PS esters in normo- and hypercholesterolemic adults. Thirty-two adults, 16 per group with equal number of males and females in each group, participated in the 4-wk study. Participants consumed 3 g/d (1 g three times per day with meals) of either PS esters or placebo delivered in capsules. Serum LDL cholesterol concentration significantly decreased 0.42 mmol/L (11%) and the LDL:HDL cholesterol ratio decreased 10% with PS ester supplementation, whereas LDL particle size and lipoprotein subclass particle concentrations (as measured by NMR) were not affected. The percent change in LDL cholesterol was positively correlated with baseline lathosterol concentration (r = 0.729; P = 0.0014), indicating an association between the magnitude of LDL change and the rate of whole-body cholesterol synthesis. Serum campesterol (but not sitosterol) concentration significantly increased in the PS ester group. Serum tocopherol, retinol, and beta-carotene concentrations were not affected by PS ester supplementation. Thus, our findings demonstrate the usefulness of a novel stearate-enriched PS ester compound in decreasing LDL cholesterol in both normo- and hypercholesterolemic adults. The extent to which PS ester fatty acid composition affects intestinal micelle formation and cholesterol absorption in humans requires further study.
Asunto(s)
Anticolesterolemiantes/uso terapéutico , LDL-Colesterol/sangre , Hipercolesterolemia/tratamiento farmacológico , Fitosteroles/uso terapéutico , Estearatos/uso terapéutico , Adulto , Anciano , Anticolesterolemiantes/farmacología , Celulosa/farmacología , Celulosa/uso terapéutico , Colesterol/biosíntesis , Colesterol/sangre , HDL-Colesterol/sangre , Método Doble Ciego , Femenino , Humanos , Hipercolesterolemia/sangre , Masculino , Persona de Mediana Edad , Fitosteroles/farmacología , Estearatos/farmacologíaRESUMEN
OBJECTIVE: This study evaluated the short-term effect of bamboo shoot consumption as a dietary fiber source on blood glucose, lipid profiles, hepatic function, and constipation symptoms in healthy women. METHODS: Eight subjects, 21- to 23-y-old women, with normal health status received a dietary fiber-free diet (control), a diet containing 25 g of cellulose, and a diet containing 360 g of bamboo shoots, with each diet segment lasting 6 d. At the end of each diet, blood biochemical parameters, such as glucose, triacylglycerols, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, glutamic pyruvic transaminase, glutamic oxaloacetic transaminase, and atherogenic index were measured and a questionnaire test for the evaluation of fecal excretion was taken. For statistical analysis, analysis of variance was performed. RESULTS: Serum total cholesterol, low-density lipoprotein cholesterol, and the atherogenic index were decreased with the bamboo shoot diet feeding compared with the dietary fiber-free diet. There were no differences in serum glucose levels among the tested diets. Fecal volume and bowel movement frequency in subjects fed the bamboo shoot diet were significantly increased. CONCLUSION: Bamboo shoots as a dietary fiber source has beneficial effects on lipid profile and bowel function.
Asunto(s)
Aterosclerosis/prevención & control , Colesterol/sangre , Defecación/efectos de los fármacos , Fibras de la Dieta/uso terapéutico , Preparaciones de Plantas/uso terapéutico , Poaceae , Alanina Transaminasa/sangre , Aspartato Aminotransferasas/sangre , Celulosa/farmacología , Celulosa/uso terapéutico , LDL-Colesterol/sangre , Fibras de la Dieta/farmacología , Femenino , Humanos , Preparaciones de Plantas/farmacología , Brotes de la Planta , Adulto JovenRESUMEN
The influence of a proprietary blend of modified cellulose and cetylated fatty acids (Trisynextrade mark, Imagenetix, Inc., San Diego, CA 92127, USA) on adipocytokine and regional body composition responses to a weight loss program was examined. Twenty-two women (Supplement group (S) (n = 11): age = 36.8 +/- 7.2 years; weight = 87.1 +/- 6.2 kg; % body fat = 43.4 +/- 4.1; Placebo group (P) (n = 11): age = 38.3 +/- 6.8 years; weight = 86.9 +/- 4.7 kg; % body fat = 44.3 +/- 2.0) completed an 8-week placebo-controlled, double-blind study consisting of a caloric restricted diet and cardiovascular exercise. Body composition and serum insulin, leptin, and adiponectin were assessed at pre-, mid-, and post-intervention. From pre- to post-intervention, significant decreases (P < 0.05) were observed for body weight (S: 87.1 +/- 6.2-77.9 +/- 5.1 kg; P: 86.9 +/- 4.7-82.7 +/- 3.8 kg) (P < 0.05 S vs. P), % body fat (S: 43.4 +/- 4.1-36.1 +/- 3.6; P: 44.3 +/- 2.0-40.6 +/- 1.2) (P < 0.05 S vs. P), leptin (S: 28.3 +/- 3.5-16.2 +/- 2.6 ng ml(-1); P: 29.4 +/- 3.2-19.9 +/- 1.1 ng ml(-1)) (P < 0.05 S vs. P), and insulin (S: 7.3 +/- 0.8-5.1 +/- 0.2 mU l(-1); P: 7.7 +/- 0.9-5.1 +/- 0.3 mU l(-1)). Serum adiponectin increased (P < 0.05) (S: 12.2 +/- 2.4-26.3 +/- 3.0 microg ml(-1): 12.6 +/- 2.0-21.8 +/- 3.1 microg ml(-1)) (P < 0.05 for S vs. P). Supplementation with a proprietary blend of modified cellulose and cetylated fatty acids during an 8-week weight loss program exhibited favorable effects on adipocytokines and regional body composition.
Asunto(s)
Adipoquinas/sangre , Adiposidad/fisiología , Celulosa/uso terapéutico , Suplementos Dietéticos , Terapia por Ejercicio , Ácidos Grasos/uso terapéutico , Sobrepeso/terapia , Adulto , Composición Corporal/fisiología , Terapia Combinada , Método Doble Ciego , Femenino , Humanos , Obesidad/terapia , Sobrepeso/sangre , Sobrepeso/dietoterapiaRESUMEN
CM3, a highly cross-linked cellulose in capsule form, expands in the stomach to a size several fold of its original volume. It is purported to induce a prolonged feeling of satiation and a delay in gastric emptying, thus promoting weight loss. We examined whether CM3 delays gastric emptying (using the stable isotope (13)C-octanoic breath test) and whether it influences subjective feelings of appetite sensations (using visual analog scales, VASs). We performed a double-blind randomized placebo-controlled crossover trial in 19 moderately obese but otherwise healthy subjects (mean age 55 +/- 9 years, BMI 31.1 +/- 4.6 kg/m(2)). The subjects were treated with six capsules of CM3 or matching placebo 30 min before a standardized solid meal. Breath collection and VASs were performed over 4 h every 15 min and 30 min, respectively. Half-excretion time of (13)CO(2) in breath, indicating gastric emptying half time, was the primary outcome parameter. The study was powered to detect a change in gastric emptying of 20-30 min. Mean (13)CO(2) half-excretion time changed from 2.3 +/- 0.4 to 2.4 +/- 0.33 h (mean difference +6 min, 95% confidence interval (CI) -3 to +15 min; P = 0.17). Appetite sensations (hunger, satiation, fullness, prospective food consumption, desire to eat something sweet, salty, savory, or fatty) changed over time during the course of the postprandial phase but were not influenced by CM3 (repeated measures ANOVA). In obese subjects, acute administration of the weight-loss supplement CM3 does not delay gastric emptying and does not influence subjective appetite sensations.