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1.
Breast Cancer Res Treat ; 170(1): 77-87, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29520533

RESUMEN

PURPOSE: Approximately 20% of breast cancer survivors develop breast cancer-related lymphedema (BCRL), and current therapies are limited. We compared acupuncture (AC) to usual care wait-list control (WL) for treatment of persistent BCRL. METHODS: Women with moderate BCRL lasting greater than six months were randomized to AC or WL. AC included twice weekly manual acupuncture over six weeks. We evaluated the difference in circumference and bioimpedance between affected and unaffected arms. Responders were defined as having a decrease in arm circumference difference greater than 30% from baseline. We used analysis of covariance for circumference and bioimpedance measurements and Fisher's exact to determine the proportion of responders. RESULTS: Among 82 patients, 73 (89%) were evaluable for the primary endpoint (36 in AC, 37 in WL). 79 (96%) patients received lymphedema treatment before enrolling in our study; 67 (82%) underwent ongoing treatment during the trial. We found no significant difference between groups for arm circumference difference (0.38 cm greater reduction in AC vs. WL, 95% CI - 0.12 to 0.89, p = 0.14) or bioimpedance difference (1.06 greater reduction in AC vs. WL, 95% CI - 5.72 to 7.85, p = 0.8). There was also no difference in the proportion of responders: 17% AC versus 11% WL (6% difference, 95% CI - 10 to 22%, p = 0.5). No severe adverse events were reported. CONCLUSIONS: Our acupuncture protocol appeared to be safe and well tolerated. However, it did not significantly reduce BCRL in pretreated patients receiving concurrent lymphedema treatment. This regimen does not improve upon conventional lymphedema treatment for breast cancer survivors with persistent BCRL.


Asunto(s)
Terapia por Acupuntura , Linfedema del Cáncer de Mama/terapia , Neoplasias de la Mama/terapia , Anciano , Brazo/patología , Linfedema del Cáncer de Mama/patología , Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/patología , Femenino , Humanos , Persona de Mediana Edad , Calidad de Vida , Resultado del Tratamiento
2.
Support Care Cancer ; 26(2): 657-665, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28920142

RESUMEN

PURPOSE: Hematopoietic stem cell transplantation (HCT) is potentially curative for a number of hematologic malignancies, but is associated with high symptom burden. We conducted a randomized sham-controlled trial (RCT) to evaluate efficacy and safety of acupuncture as an integrative treatment for managing common symptoms during HCT. METHODS: Adult patients with multiple myeloma undergoing high-dose melphalan followed by autologous HCT (AHCT) were randomized to receive either true or sham acupuncture once daily for 5 days starting the day after chemotherapy. Patients and clinical evaluators, but not acupuncturists, were blinded to group assignment. Symptom burden, the primary outcome was assessed with the MD Anderson Symptom Inventory (MDASI) at baseline, during transplantation, and at 15 and 30 days post transplantation. RESULTS: Among 60 participants, true acupuncture produced nonsignificant reductions in overall MDASI core symptom scores and symptom interference scores during transplantation (P = .4 and .3, respectively), at 15 days (P = .10 and .3), and at 30 days posttransplantation (P = .2 and .4) relative to sham. However, true acupuncture was significantly more efficacious in reducing nausea, lack of appetite, and drowsiness at 15 days (P = .042, .025, and .010, respectively). Patients receiving sham acupuncture were more likely to increase pain medication use posttransplantation (odds ratio 5.31, P = .017). CONCLUSIONS: Acupuncture was well tolerated with few attributable adverse events. True acupuncture may prevent escalation of symptoms including nausea, lack of appetite, and drowsiness experienced by patients undergoing AHCT, and reduce the use of pain medications. These findings need to be confirmed in a future definitive study. TRIAL REGISTRATION: NCT01811862.


Asunto(s)
Terapia por Acupuntura/métodos , Trasplante de Células Madre Hematopoyéticas/métodos , Mieloma Múltiple/terapia , Trasplante Autólogo/métodos , Femenino , Humanos , Masculino , Estudios Prospectivos
3.
Cancer Immunol Immunother ; 64(2): 237-47, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25351719

RESUMEN

BACKGROUND: Myelodysplastic syndromes (MDS) are characterized by ineffective erythropoiesis with dysplastic bone marrow leading to peripheral cytopenia, risk of infection, and progression to acute myelogenous leukemia. Maitake mushroom beta-glucan, a dietary supplement, stimulates hematopoietic progenitor cell differentiation, granulocyte colony-stimulating factor production, and recovery of peripheral blood leukocytes after bone marrow injury. This phase II trial examined the effects of Maitake on innate immune function in MDS. METHODS: Myelodysplastic syndromes patients with International Prognostic Scoring System Low- and Intermediate-1-risk disease received oral Maitake extract at 3 mg/kg twice daily for 12 weeks. Primary endpoints included neutrophil count and function tested as endogenous or stimulated neutrophil production of reactive oxygen species (ROS) by flow cytometry compared with age-matched healthy controls (HC). ROS activators were Escherichia coli, phorbol ester, and the bacterial peptide N-formylmethionyl-leucyl-phenylalanine (fMLP). Complete blood counts, chemistry panels, iron studies, and monocyte function were evaluated. RESULTS: Of 21 patients enrolled, 18 completed the study and were evaluable. Maitake increased endogenous (basal) neutrophil (p = 0.005) and monocyte function (p = 0.021). Pre-treatment monocyte response to E. coli was reduced in MDS patients compared with HC (p = 0.002) and increased (p = 0.0004) after treatment. fMLP-stimulated ROS production response also increased (p = 0.03). Asymptomatic eosinophilia occurred in 4 patients (p = 0.014). Other changes in albumin, hemoglobin, and total protein were not clinically relevant. CONCLUSIONS: Maitake was well tolerated. Enhanced in vitro neutrophil and monocyte function following treatment demonstrate that Maitake has beneficial immunomodulatory potential in MDS. Further study is warranted.


Asunto(s)
Antineoplásicos/uso terapéutico , Mezclas Complejas/uso terapéutico , Grifola/química , Síndromes Mielodisplásicos/tratamiento farmacológico , Anciano , Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Biomarcadores/sangre , Biomarcadores/metabolismo , Médula Ósea/patología , Células de la Médula Ósea/metabolismo , Estudios de Casos y Controles , Mezclas Complejas/administración & dosificación , Mezclas Complejas/efectos adversos , Femenino , Humanos , Cariotipo , Masculino , Persona de Mediana Edad , Monocitos/inmunología , Monocitos/metabolismo , Síndromes Mielodisplásicos/diagnóstico , Neutrófilos/inmunología , Neutrófilos/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Resultado del Tratamiento
4.
Nutr Cancer ; 67(3): 424-30, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25646565

RESUMEN

Higher serum 25-hydroxy vitamin D [25(OH)D] levels are associated with decreased colorectal cancer (CRC) incidence. In this retrospective study of Stage IV CRC patients, we evaluate whether 25(OH)D levels at diagnosis correlate with survival. Stored sera from carcinoembryonic antigen (CEA) measurements obtained between February 2005 and March 2006 were screened. The first 250 patients with CEA ± 30 days of Stage IV CRC diagnosis were included. Serum 25(OH)D levels were determined and categorized as adequate ≥ 30 ng/mL, or deficient <30 ng/mL. Multivariable Cox regression models controlling for albumin and Eastern Cooperative Oncology Group performance status were used to investigate whether higher 25(OH)D levels were associated with prolonged survival. A total of 207 patients (83%) were vitamin D-deficient (median = 21 ng/mL), with deficiencies significantly more likely among non-Hispanic black patients (P = 0.009). Higher levels were associated with prolonged survival in categorical variable analysis: adequate vs. deficient, hazard ratio = 0.61, 95% confidence interval = 0.38-0.98, P = 0.041. A majority of newly diagnosed Stage IV CRC patients are vitamin D-deficient. Our data suggest that higher 25(OH)D levels are associated with better overall survival. Clinical trials to determine whether aggressive vitamin D repletion would improve outcomes for vitamin D-deficient CRC patients are warranted.


Asunto(s)
Neoplasias Colorrectales/sangre , Vitamina D/análogos & derivados , Anciano , Índice de Masa Corporal , Neoplasias Colorrectales/mortalidad , Humanos , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Vitamina D/sangre
5.
Int Rev Psychiatry ; 26(1): 114-27, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24716505

RESUMEN

Integrative oncology uses non-pharmacological adjuncts to mainstream care to manage physical, emotional, and psychological symptoms experienced by cancer survivors. Depression, anxiety, fatigue and pain are among the common, often burdensome symptoms that can occur in clusters, deplete patient morale, interfere with treatment plans, and hamper recovery. Patients already seek various modalities on their own to address a broad range of problems. Legitimate complementary therapies offered at major cancer institutions improve quality of life, speed recovery, and optimize patient support. They also augment the benefits of psychiatric interventions, due to their ability to increase self-awareness and improve physical and psychological conditioning. Further, these integrated therapies provide lifelong tools and develop skills that patients use well after treatment to develop self-care regimens. The active referral of patients to integrative therapies achieves three important objectives: complementary care is received from therapists experienced in working with cancer patients, visits become part of the medical record, allowing treatment teams to guide individuals in maximizing benefit, and patients are diverted from useless or harmful 'alternatives.' We review the reciprocal physical and psychiatric benefits of exercise, mind-body practices, massage, acupuncture, and music therapy for cancer survivors, and suggest how their use can augment mainstream psychiatric interventions.


Asunto(s)
Terapias Complementarias/métodos , Trastornos Mentales/terapia , Neoplasias/psicología , Sobrevivientes/psicología , Terapias Complementarias/normas , Humanos , Trastornos Mentales/etiología
6.
Cancer ; 119(13): 2455-61, 2013 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-23576267

RESUMEN

BACKGROUND: Current treatments for lymphedema after breast cancer treatment are expensive and require ongoing intervention. Clinical experience and our preliminary published results suggest that acupuncture is safe and potentially useful. This study evaluates the safety and potential efficacy of acupuncture on upper-limb circumference in women with lymphedema. METHODS: Women with a clinical diagnosis of breast cancer-related lymphedema (BCRL) for 0.5-5 years and with affected arm circumference ≥2 cm larger than unaffected arm received acupuncture treatment twice weekly for 4 weeks. Affected and unaffected arm circumferences were measured before and after each acupuncture treatment. Response, defined as ≥30% reduction in circumference difference between affected/unaffected arms, was assessed. Monthly follow-up calls for 6 months thereafter were made to document any complications and self-reported lymphedema status. RESULTS: Among 37 enrolled patients, 33 were evaluated; 4 discontinued due to time constraints. Mean reduction in arm circumference difference was 0.90 cm (95% CI, 0.72-1.07; P < .0005). Eleven patients (33%) exhibited a reduction of ≥30% after acupuncture treatment. Seventy-six percent of patients received all treatments; 21% missed 1 treatment, and another patient missed 2 treatments. During the treatment period, 14 of the 33 patients reported minor complaints, including mild local bruising or pain/tingling. There were no serious adverse events and no infections or severe exacerbations after 255 treatment sessions and 6 months of follow-up interviews. CONCLUSIONS: Acupuncture for BCRL appears safe and may reduce arm circumference. Although these results await confirmation in a randomized trial, acupuncture can be considered for women with no other options for sustained arm circumference reduction.


Asunto(s)
Terapia por Acupuntura , Neoplasias de la Mama , Linfedema/etiología , Linfedema/terapia , Extremidad Superior , Terapia por Acupuntura/efectos adversos , Adulto , Anciano , Neoplasias de la Mama/terapia , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Seguridad del Paciente , Proyectos Piloto , Proyectos de Investigación , Encuestas y Cuestionarios , Resultado del Tratamiento
7.
Ann Surg Oncol ; 20(4): 1164-9, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23188543

RESUMEN

PURPOSE: Postoperative ileus (POI) prolongs hospital stay and increases risk of postoperative complications. We conducted a randomized, sham-controlled trial to evaluate whether acupuncture reduces POI more effectively than sham acupuncture. METHODS: Colon cancer patients undergoing elective colectomy were randomized to receive 30 min of true or sham acupuncture twice daily during their first 3 postoperative days. GI-3 (the later of the following two events: time that the patient first tolerated solid food, AND time that the patient first passed flatus OR a bowel movement) and GI-2 (the later of the following two events: time patient first tolerated solid food AND time patient first passed a bowel movement) were determined. Pain, nausea, vomiting, and use of pain medications were evaluated daily for the first 3 postoperative days. RESULTS: Ninety patients were randomized. Eighty-one received the allocated intervention: 39 in the true acupuncture group and 42 in the sham acupuncture group, all evaluated for the primary endpoint. The mean time to GI-3 was 149 h [standard deviation (SD) 71 h] and 146 (SD 62 h) after surgery for the acupuncture group and the sham acupuncture group (difference between means -2 h; 95 % confidence interval -31, 26; p = 0.9). No significant differences were found between groups for secondary endpoints. CONCLUSIONS: True acupuncture as provided in this study did not reduce POI more significantly than sham acupuncture. The study was limited by a standard deviation much larger than expected, suggesting that a study with a larger sample size might be required.


Asunto(s)
Acupuntura , Colectomía/efectos adversos , Ileus/prevención & control , Complicaciones Posoperatorias , Neoplasias del Colon/cirugía , Femenino , Estudios de Seguimiento , Humanos , Ileus/etiología , Tiempo de Internación , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Pronóstico , Estudios Prospectivos , Tasa de Supervivencia
8.
Oncology (Williston Park) ; 27(6): 580-5, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23909073

RESUMEN

An informal review of literature on exercise and cancer was undertaken in order to examine the role of exercise in cancer prevention, treatment, rehabilitation, and late survivorship. Population-wide studies show that cancer incidence decreases with increasing physical activity levels. Exercise can decrease the side effects of anticancer therapy, and can aid in recovery and rehabilitation following chemotherapy, radiation, and surgery. Observational studies of breast, colon, and prostate cancer survivors show robust associations between post-diagnosis exercise and decreased cancer-specific mortality. In addition, all-cause mortality in cancer survivors decreases with increasing amounts of exercise. The amount and intensity of exercise required to measure a survival benefit appear to vary by primary tumor type. Decreased breast cancer mortality is seen with the equivalent of 3 hours of walking per week, and decreased colon cancer mortality with 6 hours of walking per week. For these tumors, more vigorous exercise may not improve survival. However, after a prostate cancer diagnosis, more intense exercise is associated with superior survival when compared with walking. The mechanisms behind these differences remain to be elucidated. Further research is also needed to determine the various amounts and intensities of exercise required for optimum cancer prevention, recovery, and survival.


Asunto(s)
Ejercicio Físico , Neoplasias/prevención & control , Humanos , Resistencia a la Insulina , Neoplasias/mortalidad , Neoplasias/terapia , Tasa de Supervivencia , Pérdida de Peso
9.
Support Care Cancer ; 21(6): 1735-41, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23334562

RESUMEN

PURPOSE: Many cancer patients experience persistent fatigue after the completion of chemotherapy. A previous single-arm study provided evidence for an effect of acupuncture in this population. We conducted a randomized controlled trial to determine whether acupuncture reduces post-chemotherapy chronic fatigue more effectively than sham acupuncture. METHODS: Cancer patients reporting significant fatigue persisting for at least 2 months following the completion of chemotherapy were randomized to receive once weekly true or sham acupuncture for 6 weeks. Fatigue was evaluated before and after treatment using the Brief Fatigue Inventory (BFI, the primary endpoint). Secondary endpoints included the Hospital Anxiety and Depression Scale (HADS) and Functional Assessment of Cancer Treatment-General (FACT-G) scores. RESULTS: One hundred one patients were randomized with 74 (34 true acupuncture; 40 sham control) evaluated for the primary endpoint. BFI scores fell by about one point between baseline and follow-up in both groups with no statistically significant difference between groups. HADS and FACT-G scores also improved in both groups, but there was no significant difference between groups. Patients in the sham acupuncture group crossed over to receive true acupuncture in week 7. No long-term reduction of fatigue scores was observed at the 6-month evaluation. CONCLUSIONS: True acupuncture as provided in this study did not reduce post-chemotherapy chronic fatigue more than did sham acupuncture. The study is limited by the number of patients lost to follow-up. We also cannot exclude the possibility that a more intensive treatment regimen may be more effective.


Asunto(s)
Terapia por Acupuntura/métodos , Antineoplásicos/efectos adversos , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias del Colon/tratamiento farmacológico , Fatiga/terapia , Anciano , Enfermedad Crónica , Fatiga/inducido químicamente , Femenino , Estudios de Seguimiento , Neoplasias de los Genitales Femeninos/tratamiento farmacológico , Neoplasias Hematológicas/tratamiento farmacológico , Humanos , Masculino , Persona de Mediana Edad , Método Simple Ciego , Neoplasias Testiculares/tratamiento farmacológico , Insuficiencia del Tratamiento
10.
Oncology (Williston Park) ; 26(8): 754-8, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22957409

RESUMEN

At a time when many readily believe that vaccines cause autism, or that government scientists created AIDS as a weapon of black genocide, it is not surprising that medical quackery, especially cancer quackery, remains a flourishing and lucrative business throughout the developed world. This review provides a brief recap of its history and an overview of the various types of unproven or disproved cancer therapies popular now in the United States and elsewhere.


Asunto(s)
Terapias Complementarias/psicología , Neoplasias/psicología , Neoplasias/terapia , Charlatanería/psicología , Humanos , Estados Unidos
11.
Planta Med ; 77(8): 817-24, 2011 May.
Artículo en Inglés | MEDLINE | ID: mdl-21128203

RESUMEN

The 95 % ethanol extract of Astragalus has been demonstrated to have potent activity as an immunological adjuvant when administered with vaccines of various types. We endeavor here to identify the components of this extract that are responsible for this adjuvant activity. Mice were immunized with KLH conjugated to cancer carbohydrate antigens globo H and GD3 and cancer peptide antigen MUC1 combined with different Astragalus fractions or with commercially available Astragalus saponins and flavonoids. The antibody responses against cancer antigens and KLH were quantitated in ELISA assays, and toxicity was calculated by weight loss. Astragalosides II and IV were the most active components, but the toxicity of these two differed dramatically. Astragaloside II was the most toxic Astragalus component with 5-10 % weight loss at a dose of 500 µg while astragaloside IV showed no weight loss at all at this dose, suggesting that astragaloside IV might be utilized as an immunological adjuvant in future studies. Several flavonoids also had significant adjuvant activity. However, when the activities of these known immunologically active components of Astragalus (and of endotoxin) are calculated based on the extent of their presence in the 95 % ethanol extract, they provide only a small proportion of the immunological activity. This raises the possibility that additional uniquely active components of Astragalus may contribute to adjuvant activity, or that the adjuvant activity of Astragalus is greater than the activity of the sum of its parts.


Asunto(s)
Adyuvantes Inmunológicos/farmacología , Astragalus propinquus/inmunología , Vacunas contra el Cáncer/farmacología , Flavonoides/farmacología , Extractos Vegetales/farmacología , Saponinas/farmacología , Adyuvantes Inmunológicos/toxicidad , Animales , Anticuerpos Antineoplásicos/biosíntesis , Anticuerpos Antineoplásicos/inmunología , Formación de Anticuerpos/efectos de los fármacos , Formación de Anticuerpos/inmunología , Astragalus propinquus/química , Vacunas contra el Cáncer/inmunología , Ensayo de Inmunoadsorción Enzimática , Femenino , Flavonoides/química , Flavonoides/inmunología , Flavonoides/toxicidad , Ratones , Ratones Endogámicos BALB C , Ratones Endogámicos C57BL , Extractos Vegetales/química , Extractos Vegetales/toxicidad , Saponinas/química , Saponinas/inmunología , Saponinas/toxicidad , Triterpenos/química , Triterpenos/inmunología , Triterpenos/farmacología , Triterpenos/toxicidad , Vacunas Conjugadas/inmunología , Vacunas Conjugadas/farmacología
12.
Oncologist ; 15 Suppl 2: 19-23, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20489193

RESUMEN

Integrative oncology is the synthesis of mainstream cancer care and evidence-based complementary therapies. Complementary strategies include massage therapies, acupuncture, fitness, and mind-body techniques, which take advantage of the reciprocal relationship between the mind and body. Neuropathic pain--and pain more generally--is part of a complex process involving the whole physical and psychosocial being, therefore requiring an integrative management approach. Several studies have demonstrated, for example, that social context plays an important role in the perception of pain and that a patient's coping strategies can influence the persistence of pain. In this article, we briefly describe research illustrating the promise of integrative approaches for the treatment of cancer-related neuropathic pain.


Asunto(s)
Neoplasias/complicaciones , Neuralgia/etiología , Neuralgia/terapia , Terapia por Acupuntura , Terapia Cognitivo-Conductual , Humanos , Hipnosis , Masaje , Neuralgia/psicología
13.
Cancer Immunol Immunother ; 59(6): 885-97, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20140432

RESUMEN

Bone marrow myelotoxicity is a major limitation of chemotherapy. While granulocyte colony stimulating factor (G-CSF) treatment is effective, alternative approaches to support hematopoietic recovery are sought. We previously found that a beta-glucan extract from maitake mushroom Grifola frondosa (MBG) enhanced colony forming unit-granulocyte monocyte (CFU-GM) activity of mouse bone marrow and human hematopoietic progenitor cells (HPC), stimulated G-CSF production and spared HPC from doxorubicin toxicity in vitro. This investigation assessed the effects of MBG on leukocyte recovery and granulocyte/monocyte function in vivo after dose intensive paclitaxel (Ptx) in a normal mouse. After a cumulative dose of Ptx (90-120 mg/kg) given to B6D2F1mice, daily oral MBG (4 or 6 mg/kg), intravenous G-CSF (80 microg/kg) or Ptx alone were compared for effects on the dynamics of leukocyte recovery in blood, CFU-GM activity in bone marrow and spleen, and granulocyte/monocyte production of reactive oxygen species (ROS). Leukocyte counts declined less in Ptx + MBG mice compared to Ptx-alone (p = 0.024) or Ptx + G-CSF treatment (p = 0.031). Lymphocyte levels were higher after Ptx + MBG but not Ptx + G-CSF treatment compared to Ptx alone (p < 0.01). MBG increased CFU-GM activity in bone marrow and spleen (p < 0.001, p = 0.002) 2 days after Ptx. After two additional days (Ptx post-day 4), MBG restored granulocyte/monocyte ROS response to normal levels compared to Ptx-alone and increased ROS response compared to Ptx-alone or Ptx + G-CSF (p < 0.01, both). The studies indicate that oral MBG promoted maturation of HPC to become functionally active myeloid cells and enhanced peripheral blood leukocyte recovery after chemotoxic bone marrow injury.


Asunto(s)
Factor Estimulante de Colonias de Granulocitos y Macrófagos/administración & dosificación , Células Progenitoras de Granulocitos y Macrófagos/metabolismo , Grifola , Leucocitos/metabolismo , Paclitaxel/administración & dosificación , beta-Glucanos/administración & dosificación , Animales , Médula Ósea/efectos de los fármacos , Médula Ósea/patología , Línea Celular Tumoral , Carbohidratos de la Dieta/administración & dosificación , Antagonismo de Drogas , Quimioterapia Combinada , Células Progenitoras de Granulocitos y Macrófagos/efectos de los fármacos , Células Progenitoras de Granulocitos y Macrófagos/inmunología , Células Progenitoras de Granulocitos y Macrófagos/patología , Humanos , Leucocitos/efectos de los fármacos , Leucocitos/inmunología , Leucocitos/patología , Leucopoyesis/efectos de los fármacos , Ratones , Oxidación-Reducción/efectos de los fármacos , Paclitaxel/efectos adversos , Especies Reactivas de Oxígeno/metabolismo
14.
Oncology (Williston Park) ; 24(3): 296, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20394143

RESUMEN

Lycopene is a carotenoid found in grapefruit, watermelons, and papaya in addition to tomatoes. It is obtained only through diet. Lycopene exhibits antioxidant and anticancer properties. Results from several epidemiologic studies suggest a strong association between high intake of lycopene-rich foods and reduced risk of several cancers, notably prostate cancer. However, few well designed clinical trials have been conducted, and data remain inconclusive. Because lycopene supplementation is associated with strong antioxidant effects, it has the potential to interfere with chemotherapy and radiation therapy. Cancer patients should use caution if considering an increase in their lycopene intake.


Asunto(s)
Anticarcinógenos/farmacología , Carotenoides/farmacología , Antioxidantes/farmacología , Humanos , Licopeno , Neoplasias/prevención & control
15.
Oncology (Williston Park) ; 24(2): 201, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20361473

RESUMEN

The Gerson regimen, developed by Max Gerson in the 1930s, is promoted as an alternative cancer treatment. It involves consuming fresh, raw fruit and vegetable juices, eliminating salt from the diet, taking supplements such as potassium, vitamin B12, thyroid hormone, pancreatic enzymes, and detoxifying liver with coffee enemas to stimulate metabolism. Gerson therapy is based on the theory that cancer is caused by alteration of cell metabolism by toxic environmental substances and processed food, which changes its sodium and potassium content. It emphasizes increasing potassium intake and minimizing sodium consumption in an effort to correct the electrolyte imbalance, repair tissue, and detoxify the liver. The coffee enemas are believed to cause dilation of bile ducts and excretion of toxic breakdown products by the liver and through the colon wall. None of these theories has been substantiated by scientific research. Despite proponents' claims of recovery rates as high as 70% to 90%, case reviews by the National Cancer Institute (NCI) and the New York County Medical Society found no evidence of usefulness for the Gerson diet. An NCI-sponsored study of Gonzalez therapy, which is similar to the Gerson diet, showed that patients with inoperable pancreatic adenocarcinoma who underwent standard chemotherapy with gemcitabine (Gemzar) survived three times longer and had better quality of life than those who chose enzyme treatment, which included pancreatic enzymes, nutritional supplements, detoxification, and an organic diet.


Asunto(s)
Terapias Complementarias , Hepatopatías/prevención & control , Neoplasias/dietoterapia , Fenómenos Fisiológicos de la Nutrición , Café , Enema , Humanos
16.
Oncology (Williston Park) ; 24(1): 106, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20187330

RESUMEN

Omega-3 fatty acids are essential compounds involved in several important physiologic processes. They are not synthesized in the body but can be obtained through diet or by taking dietary supplements. Fatty fish and nuts are excellent sources of omega-3.


Asunto(s)
Ácidos Grasos Omega-3/farmacología , Dieta , Grasas de la Dieta/farmacología , Humanos , Alimentos Marinos
17.
Oncology (Williston Park) ; 24(14): 1353, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21294484

RESUMEN

The berries of Lycium barbarum, a perennial plant native to Asia and southeastern Europe, have been used for centuries in traditional Chinese medicine to treat poor vision, anemia, inflammation, and cough. They are also consumed as food and used in soup recipes. Lycium has gained immense popularity in the United States over the past decade because of its antioxidant properties. It is available in health food stores and is marketed via the Internet in juice form, typically blended with the juices of other berries and fruits. A wide range of health benefits, including cancer prevention and treatment, have been claimed for lycium.


Asunto(s)
Lycium , Neoplasias/tratamiento farmacológico , Fitoterapia , Interacciones de Hierba-Droga , Humanos
18.
Exp Biol Med (Maywood) ; 234(3): 342-53, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19144872

RESUMEN

Beta glucans are cell wall constituents of yeast, fungi and bacteria, as well as mushrooms and barley. Glucans are not expressed on mammalian cells and are recognized as pathogen-associated molecular patterns (PAMPS) by pattern recognition receptors (PRR). Beta glucans have potential activity as biological response modifiers for hematopoiesis and enhancement of bone marrow recovery after injury. We have reported that Maitake beta glucan (MBG) enhanced mouse bone marrow (BMC) and human umbilical cord blood (CB) cell granulocyte-monocyte colony forming unit (GM-CFU) activity in vitro and protected GM-CFU forming stem cells from doxorubicin (DOX) toxicity. The objective of this study was to determine the effects of MBG on expansion of phenotypically distinct subpopulations of progenitor and stem cells in CB from full-term infants cultured ex vivo and on homing and engraftment in vivo in the nonobese diabetic/severe combined immunodeficient (NOD/SCID) mouse. MBG promoted a greater expansion of CD34+CD33+CD38- human committed hematopoietic progenitor (HPC) cells compared to the conventional stem cell culture medium (P = 0.002 by ANOVA). CD34+CXCR4+CD38- early, uncommitted human hematopoietic stem cell (HSC) numbers showed a trend towards increase in response to MBG. The fate of CD34+ enriched CB cells after injection into the sublethally irradiated NOS/SCID mouse was evaluated after retrieval of xenografted human CB from marrow and spleen by flow cytometric analysis. Oral administration of MBG to recipient NOS/SCID mice led to enhanced homing at 3 days and engraftment at 6 days in mouse bone marrow (P = 0.002 and P = 0.0005, respectively) compared to control mice. More CD34+ human CB cells were also retrieved from mouse spleen in MBG treated mice at 6 days after transplantation. The studies suggest that MBG promotes hematopoiesis through effects on CD34+ progenitor cell expansion ex vivo and when given to the transplant recipient could enhance CD34+ precursor cell homing and support engraftment.


Asunto(s)
Trasplante de Células Madre de Sangre del Cordón Umbilical , Grifola/química , beta-Glucanos/farmacología , Animales , Antígenos CD34/metabolismo , Movimiento Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Sangre Fetal/citología , Células Madre Hematopoyéticas/citología , Células Madre Hematopoyéticas/efectos de los fármacos , Lectinas Tipo C , Proteínas de la Membrana/metabolismo , Ratones , Ratones Endogámicos NOD , Ratones SCID , Proteínas del Tejido Nervioso/metabolismo
19.
Oncology (Williston Park) ; 23(13): 1182, 2009 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-20043470

RESUMEN

Oxygen therapies are unproven alternatives promoted as a cure for cancer, acquired immune deficiency syndrome (AIDS), and other degenerative diseases. These "therapies" are offered at clinics in Mexico, the United States, and Europe. Proponents claim that many diseases, including cancer, are caused by oxygen deficiency and that oxygenation can restore health by destroying cancer cells, eliminating pathogens, stimulating metabolism, and by producing "oxidative detoxification." There is no scientific evidence to support any of these claims. Oxygen therapies include: (1) hydrogen peroxide therapy involving intravenous infusion, ingestion, colonic administration, or soaking in hydrogen peroxide solution; (2) ozone colonies and ozone autohemotherapy, in which blood is withdrawn and treated with ozone before reinfusion, and (3) "oxygenated" water, pills, and solutions. The use of oxygen therapies has resulted in serious adverse events and several deaths. Oxygen therapies should not be confused with those commonly used in respiratory care.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Terapias Complementarias , Peróxido de Hidrógeno/efectos adversos , Neoplasias/tratamiento farmacológico , Humanos , Peróxido de Hidrógeno/uso terapéutico , Persona de Mediana Edad
20.
Pharm Biol ; 47(8): 761-767, 2009 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-19890479

RESUMEN

Dietary supplement use has increased exponentially in recent years despite the lack of regulatory oversight and in the face of growing safety concerns. This paper provides an overview of the public health implications and safety concerns associated with dietary supplement use, especially by cancer patients. Botanical research is actively pursued at the Memorial Sloan-Kettering Cancer Center (MSKCC) Integrative Medicine department. Work of the MSKCC Center for the Study of Botanical Immunomodulators is described, and guidelines for cancer patients' use of dietary supplements outlined. Herbs and other botanicals are complex, physiologically active agents, but little is known about most of the popular, widely available dietary supplements. Herb-drug interactions, a major concern, are exacerbated in the cancer setting. Biologically active agents may interfere with chemotherapy and other prescription medications. They may exert anti-coagulant activity at rather inconvenient times such as during surgery, and create other serious problems. Research on the bioavailability, effective dosage, safety and benefits of these complex agents is sorely needed. Oncology professionals and other healthcare providers should educate themselves and their patients about these issues. Probably the largest, continuously-updated free information resource is MSKCC's AboutHerbs website (www.mskcc.org/AboutHerbs).

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