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1.
Am J Phys Anthropol ; 174(3): 500-518, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33247981

RESUMEN

OBJECTIVES: Degenerative joint disease in the spine is heavily influenced by genetic, environmental, and epigenetic factors, as well as exacerbated by physical activity and injury. The objective of this study was to investigate the multivariate relationship between known predictors of degenerative joint disease in the spine, such as age and sex, with mortuary indicators of economic access such as grave inclusions, burial location, and burial type. MATERIALS AND METHODS: The presence and severity of vertebral osteophytosis (VO) and vertebral osteoarthritis (VOA) was recorded for the vertebral columns of N = 106 adult individuals from the Late Medieval period at the rural monastery of San Pietro at Villamagna in Lazio, Italy (1300-1450 AD). Multiple skeletal indicators of degenerative joint disease, morphological sex, and age were compared with differences in mortuary treatment across four regions of the spine. RESULTS: There are marked differences in severe joint disease outcome between groups with more and less economic access. Relative risk ratios suggest that males and females with less economic access have elevated risk for VO and VOA in specific spine regions, although this effect is reduced among females. DISCUSSION: Current research on the consequences of economic and social inequality point to the important role of economic inequality in shaping disease outcomes. Our results suggest that biocultural effects of reduced economic access at the intraclass level may increase vulnerability to the downstream effects of risk exposure (e.g., biomechanical injure, physical activity, biochemical imbalance), and ultimately increase the risk and prevalence for severe degenerative disease outcomes in medieval Italy.


Asunto(s)
Entierro/historia , Osteoartritis de la Columna Vertebral , Osteofitosis Vertebral , Adolescente , Adulto , Factores de Edad , Arqueología , Femenino , Historia Medieval , Humanos , Italia , Masculino , Persona de Mediana Edad , Osteoartritis de la Columna Vertebral/economía , Osteoartritis de la Columna Vertebral/etnología , Osteoartritis de la Columna Vertebral/patología , Riesgo , Factores Sexuales , Factores Socioeconómicos , Osteofitosis Vertebral/economía , Osteofitosis Vertebral/etnología , Osteofitosis Vertebral/patología , Columna Vertebral/patología , Adulto Joven
2.
Int J Paleopathol ; 32: 9-16, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33197696

RESUMEN

PURPOSE: To examine a possible case of Paget's disease of bone (PDB) in an Indigenous pre-contact male from Canada, individual D of the Skinner site in Ontario. METHODS: Radiographs, CT scan and histological analysis. RESULTS: The histological analysis revealed the mosaic pattern that characterizes PDB. CT scans show advanced sclerosis of the cranium and a diminished diplÓ§e with osteolytic lesions. CONCLUSIONS: The pathological features that have been identified are collectively characteristic of PDB. SIGNIFICANCE: The Skinner case advances our understanding of the global history and distribution of PDB. LIMITATIONS OF STUDY: Only two New World cases have been identified and neither has been studied in sufficient detail. SUGGESTIONS FOR FUTURE RESEARCH: The older individuals in precolonial New World skeletal series should be given CT scans, which are non-intrusive, to be followed by histological and genetic analyses when indicated.


Asunto(s)
Osteítis Deformante/historia , Entierro , Historia Antigua , Humanos , Masculino , Ontario , Osteítis Deformante/diagnóstico por imagen , Paleopatología , Radiografía , Cráneo
3.
Am J Phys Anthropol ; 169(2): 253-269, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30924143

RESUMEN

OBJECTIVES: Bioarchaeological investigations of sex-based differences in the prevalence of dental pathological lesions, particularly caries, have drawn considerable attention, and out of this work, two dominant models have emerged. Traditionally, the first model interprets sex-related patterns in caries as a product of gendered differences in diet. A more recent model interprets a generally higher propensity for caries prevalence in females in light of reproductive ecology. To test the hypothesis that females have higher risk of caries in accordance with reproductive ecology, we examined and analyzed caries prevalence and other potentially synergistic oral pathological lesions in a late medieval (A.D. 1300-1500) Italian archaeological sample. MATERIALS AND METHODS: We examined sex- and age-related prevalence in caries and other oral pathological lesions in a late medieval Italian skeletal assemblage excavated from Villamagna consisting of 38 females and 37 males (n = 1,534 teeth). We examined age- and sex-related patterns in six dental traits: antemortem tooth loss, caries, calculus, periapical inflammation, tooth wear, and periodontitis. RESULTS: Significant age-related increases in antemortem tooth loss, caries, calculus, and tooth wear were observed in both males and females. However, there was a lack of expected sex differences in oral pathological lesions, with instead older males exhibiting significantly more antemortem tooth loss and corrected caries than females. DISCUSSION: Results are discussed in relation to the ethnohistoric context of medieval rural dietary practices as well as biomedical salivary literature, which suggest that dietary changes throughout the life course may have facilitated trade-offs that buffered females from higher rates of dental pathological lesions.


Asunto(s)
Enfermedades Dentales , Adolescente , Adulto , Arqueología , Femenino , Historia Medieval , Humanos , Italia , Masculino , Persona de Mediana Edad , Paleodontología , Factores Sexuales , Enfermedades Dentales/epidemiología , Enfermedades Dentales/historia , Enfermedades Dentales/patología , Adulto Joven
4.
Oncologist ; 24(4): 521-528, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30266892

RESUMEN

BACKGROUND: We assessed the efficacy and safety of bevacizumab (BEV) through multiple lines in patients with recurrent glioblastoma who had progressed after first-line treatment with radiotherapy, temozolomide, and BEV. PATIENTS AND METHODS: TAMIGA (NCT01860638) was a phase II, randomized, double-blind, placebo-controlled, multicenter trial in adult patients with glioblastoma. Following surgery, patients with newly diagnosed glioblastoma received first-line treatment consisting of radiotherapy plus temozolomide and BEV, followed by six cycles of temozolomide and BEV, then BEV monotherapy until disease progression (PD1). Randomization occurred at PD1 (second line), and patients received lomustine (CCNU) plus BEV (CCNU + BEV) or CCNU plus placebo (CCNU + placebo) until further disease progression (PD2). At PD2 (third line), patients continued BEV or placebo with chemotherapy (investigator's choice). The primary endpoint was survival from randomization. Secondary endpoints were progression-free survival in the second and third lines (PFS2 and PFS3) and safety. RESULTS: Of the 296 patients enrolled, 123 were randomized at PD1 (CCNU + BEV, n = 61; CCNU + placebo, n = 62). The study was terminated prematurely because of the high drop-out rate during first-line treatment, implying underpowered inferential testing. The proportion of patients receiving corticosteroids at randomization was similar (BEV 33%, placebo 31%). For the CCNU + BEV and CCNU + placebo groups, respectively, median survival from randomization was 6.4 versus 5.5 months (stratified hazard ratio [HR], 1.04; 95% confidence interval [CI], 0.69-1.59), median PFS2 was 2.3 versus 1.8 months (stratified HR, 0.70; 95% CI, 0.48-1.00), median PFS3 was 2.0 versus 2.2 months (stratified HR, 0.70; 95% CI, 0.37-1.33), and median time from randomization to a deterioration in health-related quality of life was 1.4 versus 1.3 months (stratified HR, 0.76; 95% CI, 0.52-1.12). The incidence of treatment-related grade 3 to 4 adverse events was 19% (CCNU + BEV) versus 15% (CCNU + placebo). CONCLUSION: There was no survival benefit and no detriment observed with continuing BEV through multiple lines in patients with recurrent glioblastoma. IMPLICATIONS FOR PRACTICE: Previous research suggested that there may be value in continuing bevacizumab (BEV) beyond progression through multiple lines of therapy. No survival benefit was observed with the use of BEV through multiple lines in patients with glioblastoma who had progressed after first-line treatment (radiotherapy + temozolomide + BEV). No new safety concerns arose from the use of BEV through multiple lines of therapy.


Asunto(s)
Antineoplásicos Inmunológicos/uso terapéutico , Bevacizumab/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Glioblastoma/tratamiento farmacológico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Adulto , Anciano , Neoplasias Encefálicas/patología , Método Doble Ciego , Femenino , Estudios de Seguimiento , Glioblastoma/patología , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Pronóstico , Tasa de Supervivencia
5.
Oncologist ; 23(5): 524-e44, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29472310

RESUMEN

LESSONS LEARNED: Results suggest that the combination of bevacizumab plus temozolomide is active in terms of response rate, survival, performance, quality of life, and cognition in elderly patients with glioblastoma multiforme with poor performance status.Whether this combination is superior to temozolomide alone remains to be demonstrated by a randomized study. BACKGROUND: The optimal treatment of glioblastoma multiforme (GBM) in patients aged ≥70 years with a Karnofsky performance status (KPS) <70 is not established. This clinical trial evaluated the efficacy and safety of upfront temozolomide (TMZ) and bevacizumab (Bev) in patients aged ≥70 years and a KPS <70. MATERIALS AND METHODS: Patients aged ≥70 years with a KPS <70 and biopsy-proven GBM were eligible for this multicenter, prospective, nonrandomized, phase II trial of older patients with impaired performance status. Treatment consisted of TMZ administered at 130-150 mg/m2 per day for 5 days every 4 weeks plus Bev administered at 10 mg/kg every 2 weeks. RESULTS: The trial included 66 patients (median age of 76 years; median KPS of 60). The median overall survival (OS) was 23.9 weeks (95% confidence interval [CI], 19-27.6), and the median progression-free survival (PFS) was 15.3 weeks (95% CI, 12.9-19.3). Twenty-two (33%) patients became transiently capable of self-care (i.e., KPS >70). Cognition and quality of life significantly improved over time during treatment. Grade ≥3 hematological adverse events occurred in 13 (20%) patients, high blood pressure in 16 (24%), venous thromboembolism in 3 (4.5%), cerebral hemorrhage in 2 (3%), and intestinal perforation in 2 (3%). CONCLUSION: This study suggests that TMZ + Bev treatment is active in elderly patients with GBM with low KPS and has an acceptable tolerance level.


Asunto(s)
Bevacizumab/uso terapéutico , Glioblastoma/tratamiento farmacológico , Temozolomida/uso terapéutico , Anciano , Anciano de 80 o más Años , Bevacizumab/farmacología , Femenino , Humanos , Masculino , Temozolomida/farmacología
6.
J Neurosurg ; 128(1): 3-13, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-28298039

RESUMEN

OBJECTIVE The goal of this study was to provide insight into the influence of gliomas on gestational outcomes, the impact of pregnancy on gliomas, and the identification of patients at risk. METHODS In this multiinstitutional retrospective study, the authors identified 52 pregnancies in 50 women diagnosed with a glioma. RESULTS For gliomas known prior to pregnancy (n = 24), we found the following: 1) An increase in the quantified imaging growth rates occurred during pregnancy in 87% of cases. 2) Clinical deterioration occurred in 38% of cases, with seizures alone resolving after delivery in 57.2% of cases. 3) Oncological treatments were immediately performed after delivery in 25% of cases. For gliomas diagnosed during pregnancy (n = 28), we demonstrated the following: 1) The tumor was discovered during the second and third trimesters in 29% and 54% of cases, respectively, with seizures being the presenting symptom in 68% of cases. 2) The quantified imaging growth rates did not significantly decrease after delivery and before oncological treatment. 3) Clinical deterioration resolved after delivery in 21.4% of cases. 4) Oncological treatments were immediately performed after delivery in 70% of cases. Gliomas with a high grade of malignancy, negative immunoexpression of alpha-internexin, or positive immunoexpression for p53 were more likely to be associated with tumor progression during pregnancy. Deliveries were all uneventful (cesarean section in 54.5% of cases and vaginal delivery in 45.5%), and the infants were developmentally normal. CONCLUSIONS When a woman harboring a glioma envisions a pregnancy, or when a glioma is discovered in a pregnant patient, the authors suggest informing her and her partner that pregnancy may impact the evolution of the glioma clinically and radiologically. They strongly advise a multidisciplinary approach to management. ■ CLASSIFICATION OF EVIDENCE Type of question: association; study design: case series; evidence: Class IV.


Asunto(s)
Neoplasias Encefálicas/epidemiología , Glioma/epidemiología , Complicaciones Neoplásicas del Embarazo/epidemiología , Adulto , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/terapia , Progresión de la Enfermedad , Femenino , Estudios de Seguimiento , Glioma/diagnóstico , Glioma/terapia , Humanos , Embarazo , Complicaciones Neoplásicas del Embarazo/diagnóstico , Complicaciones Neoplásicas del Embarazo/terapia , Resultado del Embarazo , Estudios Retrospectivos , Análisis de Supervivencia , Adulto Joven
7.
Am J Phys Anthropol ; 164(1): 41-61, 2017 09.
Artículo en Inglés | MEDLINE | ID: mdl-28581022

RESUMEN

OBJECTIVES: One of the hallmarks of contemporary osteoporosis and bone loss is dramatically higher prevalence of loss and fragility in females post-menopause. In contrast, bioarchaeological studies of bone loss have found a greater diversity of age- and sex-related patterns of bone loss in past populations. We argue that the differing findings may relate to the fact that most studies use only a single methodology to quantify bone loss and do not account for the heterogeneity and complexity of bone maintenance across the skeleton and over the life course. METHODS: We test the hypothesis that bone mass and maintenance in trabecular bone sites versus cortical bone sites will show differing patterns of age-related bone loss, with cortical bone sites showing sex difference in bone loss that are similar to contemporary Western populations, and trabecular bone loss at earlier ages. We investigated this hypothesis in the Imperial Roman population of Velia using three methods: radiogrammetry of the second metacarpal (N = 71), bone histology of ribs (N = 70), and computerized tomography of trabecular bone architecture (N = 47). All three methods were used to explore sex and age differences in patterns of bone loss. RESULTS: The suite of methods utilized reveal differences in the timing of bone loss with age, but all methods found no statistically significant differences in age-related bone loss. DISCUSSION: We argue that a multi-method approach reduces the influence of confounding factors by building a reconstruction of bone turnover over the life cycle that a limited single-method project cannot provide. The implications of using multiple methods beyond studies of bone loss are also discussed.


Asunto(s)
Antropometría/métodos , Densidad Ósea/fisiología , Remodelación Ósea/fisiología , Osteoporosis/patología , Adolescente , Adulto , Anatomía Transversal , Femenino , Historia Antigua , Humanos , Italia , Masculino , Huesos del Metacarpo/diagnóstico por imagen , Huesos del Metacarpo/patología , Persona de Mediana Edad , Osteoporosis/diagnóstico por imagen , Osteoporosis/historia , Paleopatología , Costillas/diagnóstico por imagen , Costillas/patología , Mundo Romano/historia , Tomografía Computarizada por Rayos X , Adulto Joven
8.
Neurology ; 85(15): 1325-31, 2015 Oct 13.
Artículo en Inglés | MEDLINE | ID: mdl-26385879

RESUMEN

OBJECTIVES: We aimed to study the potential clinical relevance of 9p allelic loss, with or without copy number variation, in 1p/19q codeleted anaplastic oligodendroglial tumors (AOTs). METHODS: This study enrolled 216 patients with 1p/19q codeleted AOT. The prognostic value of 9p allelic loss was investigated using a French nation-wide prospective registry, POLA (prise en charge des tumeurs oligodendrogliales anaplasiques) and high-density single nucleotide polymorphism arrays. We validated our results using the Repository of Molecular Brain Neoplasia Data (REMBRANDT) dataset. RESULTS: The minimal common region of allelic loss in chromosome arm 9p was 9p21.3. Allelic loss of 9p21.3, detected in 41.7% of tumors, was associated with shorter progression-free and overall survival rates in univariate (p = 0.008 and p < 0.001, respectively) and multivariate analyses (p = 0.009 and p = 0.009, respectively). This finding was validated in the REMBRANDT dataset in univariate and multivariate analysis (p = 0.01 and p = 0.01, respectively). CONCLUSION: Our study highlights a novel potential prognostic biomarker in 1p/19q codeleted AOT. Further prospective studies are warranted to investigate our finding.


Asunto(s)
Neoplasias Encefálicas/genética , Cromosomas Humanos Par 1/genética , Cromosomas Humanos Par 9/genética , Variaciones en el Número de Copia de ADN/genética , Glioma/diagnóstico , Glioma/epidemiología , Pérdida de Heterocigocidad/genética , Adulto , Anciano , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/patología , Deleción Cromosómica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos
9.
Cancers (Basel) ; 5(4): 1199-211, 2013 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-24202441

RESUMEN

Glioblastomas are considered to be one of the most radio resistant tumors. Despite new therapies, the prognosis of this disease remains dismal. Also, the mechanisms of radiation resistance in mammalian cells are more complex than once believed. Experimental studies have indicated that some human cell lines are sensitive to low radiation doses of <1 Gy. This phenomenon has been termed low-dose hyper-radio-sensitivity (HRS), and is more apparent in radio resistant cell lines, such as glioblastoma cells. Sensitivity may result from the inability of low dose radiation to efficiently induce repair mechanisms, whereas higher doses cause enough damage to trigger repair responses for radio resistance. In vitro studies have demonstrated this phenomenon using various human malignant glioma cell lines: (1) daily repeated irradiation of cells with low doses compared to irradiation using a single biologically equivalent dose resulted in significantly higher cell killing; (2) experiments conducted on glioma xenografts demonstrated that repeated irradiation with low doses was more effective for inhibiting tumor growth than a single dose. In order to confirm and validate these promising studies on HRS, a few phase II trials were developed. For translating the experimental observations into the clinic, ultra fractionation protocols (with three daily doses) were tested in glioblastoma patients. Tolerance and toxicity were the primary endpoints, with overall survival as a secondary endpoint. These protocols were initiated before concomitant radio chemotherapy became the standard of care. For these trials, patients with an unfavorable clinical prognostic factor of newly unresectable GBM were included. When comparing the results of these trials with international literature using multivariate analysis for both progression free survival and overall survival, ultra fractionated irradiation showed superiority over radiotherapy alone. In addition, it was found to be equivalent to treatment using radiotherapy and temozolomide. Therefore, ultra fractionated protocols may prolong survival of glioblastoma patients. In this review, we describe the main experimental data regarding low-dose hypersensitivity as well as the findings of clinical trials that have investigated this new radiotherapy regimen.

10.
Anticancer Res ; 33(8): 3467-74, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23898121

RESUMEN

BACKGROUND: Radiotherapy with concomitant and adjuvant temozolomide (six cycles) is the standard treatment after surgery in glioblastoma patients. Few studies have assessed the impact of additional cycles of temozolomide on survival. PATIENTS AND METHODS: We conducted a bi-centric retrospective study comparing survival and toxicity according to the number of cycles of adjuvant temozolomide. RESULTS: Fifty-eight patients were included. All patients received radiotherapy with concomitant temozolomide. Thirty-eight patients received six cycles, while 20 received nine or more (median=14) cycles. The risk of recurrence was significantly higher in the group receiving six cycles compared to the other group. Prolonged treatment improved progression-free survival (p=0.03) and overall survival (p=0.01) in multivariate analysis without a significant increase in toxicity. CONCLUSION: Prolonged administration of temozolomide seems to improve progression-free and overall survival, without increased toxicity. Prospective studies in larger populations are needed to better-define the population to whom it can be proposed and its optimal duration.


Asunto(s)
Antineoplásicos Alquilantes/administración & dosificación , Antineoplásicos Alquilantes/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Dacarbazina/análogos & derivados , Glioblastoma/tratamiento farmacológico , Adolescente , Corticoesteroides/uso terapéutico , Adulto , Anciano , Antineoplásicos Alquilantes/efectos adversos , Quimioterapia Adyuvante , Dacarbazina/administración & dosificación , Dacarbazina/efectos adversos , Dacarbazina/uso terapéutico , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia , Temozolomida , Resultado del Tratamiento , Adulto Joven
11.
J Neurooncol ; 113(2): 267-75, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23479036

RESUMEN

The involvement of eloquent brain areas may preclude the total/subtotal surgical resection of diffuse low-grade gliomas (DLGGs). The feasibility and functional tolerance of neoadjuvant chemotherapy have been demonstrated in such cases. The present study assesses the clinical and radiological impact of neoadjuvant chemotherapy on the natural course of DLGG. Seventeen patients without feasible surgical resection (infiltration of functional areas and/or large contralateral extension) were retrospectively selected. Temozolomide based neoadjuvant chemotherapy was initiated, inducing a tumor volume decrease and allowing a functional based maximal surgical resection. The median follow-up since initial radiological diagnosis was 5.9 years (range, 1.4-11). The median time to malignant transformation was 5.9 years. Six patients (35 %) had 1p19q codeletion, 12 patients (70 %) with IDH mutation and MGMT promoter methylation, and eight patients (47 %) had p53 overexpression. Chemotherapy reduced tumor volume (median -35.6 %, range -61.6 to -5.1 %) in contralateral hemisphere through the corpus callosum in seven cases (41 %) and in ipsi-lesional functional areas in ten cases (59 %). Chemotherapy significantly decreased the imaging tumor growth (measured by the velocity of diametric expansion VDE) with a median of -3.2 mm/year (range, -29.8 to -0.9 mm/year) (p < 0.001). A tumor volume decrease of more than 20 % was correlated with a lower postoperative residual tumor (median 2 cc, p = 0.04), a greater extent of resection (93.1 vs. 89.5 %), a higher probability of total/subtotal removal. Neoadjuvant chemotherapy with Temozolomide could optimize the surgical resection of DLGGs and could impact their natural history. Further large prospective studies with long-term follow-up are needed.


Asunto(s)
Antineoplásicos Alquilantes/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Dacarbazina/análogos & derivados , Glioma/tratamiento farmacológico , Terapia Neoadyuvante , Procedimientos Neuroquirúrgicos , Adolescente , Adulto , Anciano , Biomarcadores de Tumor/análisis , Neoplasias Encefálicas/patología , Neoplasias Encefálicas/cirugía , Terapia Combinada , Dacarbazina/uso terapéutico , Femenino , Estudios de Seguimiento , Glioma/patología , Glioma/cirugía , Humanos , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Pronóstico , Estudios Prospectivos , Estudios Retrospectivos , Tasa de Supervivencia , Temozolomida , Carga Tumoral , Organización Mundial de la Salud , Adulto Joven
12.
Int J Paleopathol ; 3(2): 71-82, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29539314

RESUMEN

Much can be learned about cultural attitudes of violence towards children from the analyses of their skeletal remains and mortuary patterns of the communities in which they lived and died. A bioarchaeological approach integrating biological, socio-cultural, and physical environments is used in analyzing the remains of a 2-3-year-old child from Kellis 2, a Romano-Christian period cemetery in the Dakhleh Oasis, Egypt. The skeletal remains of this individual show an unusual pattern of trauma and healing events, possibly indicating multiple episodes of non-accidental trauma. Macroscopic, radiographic, and histologic analyses show the extent of the skeletal trauma and healing, while stable carbon and nitrogen analyses of bone and hair reveal metabolic disturbances and changes in diet correlated with these traumatic events. Results from the differential diagnosis demonstrate that this individual exhibits skeletal fracture and healing patterns consistent with repeated non-accidental trauma, which may or may not have resulted in death. In addition, this individual may also represent the earliest documented case of violence against children from an archaeological context.

13.
Case Rep Oncol ; 5(3): 530-6, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23139667

RESUMEN

Unresectable glioblastomas with severe neurological impairment at diagnosis have a poor prognosis. The conventional approach using a temozolomide-based chemoradiotherapy has limited efficiency on patients in the RTOG RPA V-VI classes. The activity of the antiangiogenic monoclonal antibody bevacizumab is well defined in recurrent glioblastoma, despite the fact that its impact on survival is not yet established. We wondered if neoadjuvant bevacizumab, used as upfront treatment in combination with a cytotoxic agent, was tolerable and active on neurological signs in patients with severe alteration of the neurological status due to the tumor being located in functional areas. Eight patients received intravenous bevacizumab, 10 mg/kg every 2 weeks, and either oral temozolomide (150-200 mg/m(2)/day for 5 days every 4 weeks) or intravenous fotemustine (80 mg/m(2) every 2 weeks). After an average of 5 cycles of bevacizumab, a clinical improvement of neurological functions was recorded in 8/8 patients who could then receive radiotherapy at a conventional dose (60 Gy in 30 fractions) with continuation of bevacizumab and the cytotoxic agent. Four out of the 8 patients benefited from a durable stabilization and experienced an unusually long survival in such a bad situation at diagnosis. In conclusion, neoadjuvant bevacizumab with chemotherapy appears to be feasible and efficient in a category of patients from the RTOG RPA V-VI classes, by allowing the completion of full-dose radiotherapy. A clinical trial is planned to confirm these retrospective observations.

14.
PLoS One ; 7(10): e45950, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23071531

RESUMEN

Anaplastic oligodendrogliomas (AOD) are rare glial tumors in adults with relative homogeneous clinical, radiological and histological features at the time of diagnosis but dramatically various clinical courses. Studies have identified several molecular abnormalities with clinical or biological relevance to AOD (e.g. t(1;19)(q10;p10), IDH1, IDH2, CIC and FUBP1 mutations).To better characterize the clinical and biological behavior of this tumor type, the creation of a national multicentric network, named "Prise en charge des OLigodendrogliomes Anaplasiques (POLA)," has been supported by the Institut National du Cancer (InCA). Newly diagnosed and centrally validated AOD patients and their related biological material (tumor and blood samples) were prospectively included in the POLA clinical database and tissue bank, respectively.At the molecular level, we have conducted a high-resolution single nucleotide polymorphism array analysis, which included 83 patients. Despite a careful central pathological review, AOD have been found to exhibit heterogeneous genomic features. A total of 82% of the tumors exhibited a 1p/19q-co-deletion, while 18% harbor a distinct chromosome pattern. Novel focal abnormalities, including homozygously deleted, amplified and disrupted regions, have been identified. Recurring copy neutral losses of heterozygosity (CNLOH) inducing the modulation of gene expression have also been discovered. CNLOH in the CDKN2A locus was associated with protein silencing in 1/3 of the cases. In addition, FUBP1 homozygous deletion was detected in one case suggesting a putative tumor suppressor role of FUBP1 in AOD.Our study showed that the genomic and pathological analyses of AOD are synergistic in detecting relevant clinical and biological subgroups of AOD.


Asunto(s)
Neoplasias Encefálicas/genética , Eliminación de Gen , Pérdida de Heterocigocidad , Oligodendroglioma/genética , Adulto , Anciano , Femenino , Genes p16/fisiología , Humanos , Masculino , Persona de Mediana Edad , Mutación , Polimorfismo de Nucleótido Simple
16.
J Neurooncol ; 106(2): 353-66, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21785913

RESUMEN

Diffuse WHO grade II (GIIG) may be unresectable when involving critical structures. To assess the feasibility and functional tolerance (cognition and quality of life) of an original therapeutic strategy combining neoadjuvant chemotherapy followed by surgical resection for initially inoperable GIIG. Ten patients underwent Temozolomide for unresectable GIIG, as initial treatment or at recurrence after previous partial resection, due to invasion of eloquent areas or bi-hemispheric diffusion preventing a total/subtotal removal. Functional outcome after both treatments was assessed, with evaluation of seven cognitive domains. Chemotherapy induced tumor shrinkage (median volume decrease 38.9%) in ipsilateral functional areas in six patients and in the contralateral hemisphere in four. Only four patients had a 1p19q codeletion. The tumor shrinkage made possible the resection (mean extent of resection 93.3%, 9 total or subtotal removals) of initially inoperable tumors. Postoperatively, three patients had no deficits, while verbal episodic memory and executive functions were slightly impaired in seven patients. However, global quality of life was roughly preserved on the EORTC QLQ C30 + BN 20 (median score: 66.7%). Role functioning score was relatively reduced (median score: 66.7%) whereas KPS was preserved (median score: 90, range 80-100). Seven patients became seizure-free while three improved. This combined treatment is feasible, efficient (surgery made possible by neoadjuvant chemotherapy) and well-tolerated (preservation of quality of life, no serious cognitive disturbances). Cognitive deficits seem mostly related to tumor location. Because KPS is not reliable enough, a detailed neuropsychological assessment should be systematically performed in GIIG.


Asunto(s)
Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/cirugía , Cognición , Glioma/tratamiento farmacológico , Glioma/cirugía , Terapia Neoadyuvante , Calidad de Vida , Adulto , Antineoplásicos/uso terapéutico , Neoplasias Encefálicas/patología , Quimioterapia Adyuvante/efectos adversos , Quimioterapia Adyuvante/métodos , Cognición/efectos de los fármacos , Dacarbazina/análogos & derivados , Dacarbazina/uso terapéutico , Femenino , Glioma/patología , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante/efectos adversos , Terapia Neoadyuvante/métodos , Clasificación del Tumor , Pruebas Neuropsicológicas , Procedimientos Neuroquirúrgicos , Estudios Retrospectivos , Temozolomida , Resultado del Tratamiento , Adulto Joven
17.
Cancers (Basel) ; 4(1): 77-87, 2012 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-24213227

RESUMEN

Malignant gliomas account for approximately 60% of all primary brain tumors in adults. The prognosis for patients with malignant glioma has not changed significantly in recent years. Despite debulking surgery, radiotherapy and cytotoxic chemotherapy, the median survival time is nine to 12 months, and very few, if any, patients are cured from this illness. Fotemustine is an alkylating agent characterized by the grafting of a phosphonoalanine group onto the nitrosourea radical with consequent high lipophilicity and improved diffusion through the cell membrane and the blood-brain barrier. Fotemustine has been registered for use in two indications: disseminated malignant melanoma, including cerebral metastases, and primary brain tumors. Fotemustine is currently used in Europe, particularly in France and Italy, as a salvage therapy for recurrent malignant gliomas. Myelosuppression, leucopenia and thrombocytopenia are the most frequent side effects of treatment with fotemustine. The objective response to this treatment is between 26% and 70%, and the reported median survival time is 10 months. New drug combinations containing fotemustine and angiogenesis inhibitors, such as bevacizumab, are currently under development. In this review, we describe all the combinations of fotemustine currently used in clinical practice for recurrent malignant gliomas.

18.
J Clin Oncol ; 29(22): 3050-5, 2011 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-21709196

RESUMEN

PURPOSE: The management of glioblastoma multiforme (GBM) in elderly patients with poor performance status is not well established. A trial evaluating the efficacy and safety of temozolomide alone in this population was undertaken. PATIENTS AND METHODS: Patients age 70 years or older with newly diagnosed GBM and postoperative Karnofsky performance score (KPS) less than 70 were eligible for this nonrandomized phase II trial. Treatment consisted of 150 to 200 mg/m(2)/d temozolomide for 5 days every 4 weeks until disease progression. Radiotherapy was not administered. The primary end point was overall survival (OS); secondary end points included progression-free survival (PFS), safety, quality of life, and cognition. RESULTS: Seventy patients (median age, 77 years; median KPS, 60) were enrolled between July 2007 and February 2009. Grade 3 to 4 neutropenia and thrombocytopenia occurred in 13% and 14% of patients, respectively. Median PFS was 16 weeks (95% CI, 10 to 20 weeks), and median OS was 25 weeks (95% CI, 19 to 28 weeks), comparing favorably with a 12- to 16-week OS expected from a purely supportive approach. Twenty-three patients (33%) improved their KPS by 10 or more points, and 18 (26%) became capable of self-care (KPS ≥ 70). Overall quality of life and cognition improved over time before disease progression. In the 31 tumors evaluated for O(6)-methylguanine-DNA methyltransferase (MGMT) promoter methylation, a methylated status indicated longer PFS (26 v 11 weeks; P = .03) and OS (31 v 19 weeks; P = .03). CONCLUSION: Temozolomide has an acceptable tolerance in elderly patients with GBM and KPS less than 70. It is associated with improvement of functional status in 33% of patients and appears to increase survival compared with supportive care alone, especially in patients with methylated MGMT promoter.


Asunto(s)
Antineoplásicos Alquilantes/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Dacarbazina/análogos & derivados , Glioblastoma/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Antineoplásicos Alquilantes/administración & dosificación , Antineoplásicos Alquilantes/efectos adversos , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/metabolismo , Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/cirugía , Cognición , Metilación de ADN/efectos de los fármacos , Metilasas de Modificación del ADN/metabolismo , Enzimas Reparadoras del ADN/metabolismo , Dacarbazina/administración & dosificación , Dacarbazina/efectos adversos , Dacarbazina/uso terapéutico , Supervivencia sin Enfermedad , Esquema de Medicación , Femenino , Francia/epidemiología , Glioblastoma/diagnóstico , Glioblastoma/metabolismo , Glioblastoma/mortalidad , Glioblastoma/cirugía , Humanos , Estimación de Kaplan-Meier , Estado de Ejecución de Karnofsky , Masculino , Reacción en Cadena de la Polimerasa , Estudios Prospectivos , Calidad de Vida , Encuestas y Cuestionarios , Temozolomida , Resultado del Tratamiento , Proteínas Supresoras de Tumor/metabolismo
19.
Cancers (Basel) ; 3(1): 461-77, 2011 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-24212625

RESUMEN

Malignant gliomas account for approximately 60% of all primary brain tumors in adults. Prognosis for these patients has not significantly changed in recent years-despite debulking surgery, radiotherapy and cytotoxic chemotherapy-with a median survival of 9-12 months. Virtually no patients are cured of their illness. Malignant gliomas are usually locally invasive tumors, though extra-neural metastases can sometimes occur late in the course of the disease (median of two years). They generally appear after craniotomy although spontaneous metastases have also been reported. The incidence of these metastases from primary intra-cranial malignant gliomas is low; it is estimated at less than 2% of all cases. Extra-neural metastases from gliomas frequently occur late in the course of the disease (median of two years), and generally appear after craniotomy, but spontaneous metastases have also been reported. Malignant glioma metastases usually involve the regional lymph nodes, lungs and pleural cavity, and occasionally the bone and liver. In this review, we present three cases of extra-neural metastasis of malignant gliomas from our department, summarize the main reported cases in literature, and try to understand the mechanisms underlying these systemic metastases.

20.
Lancet Oncol ; 11(9): 871-9, 2010 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-20598636

RESUMEN

Neoplastic meningitis consists of diffuse involvement of the leptomeninges by infiltrating cancer cells, and can be caused by systemic or primary CNS tumours, such as solid cancers or lymphoproliferative malignant disease. Neoplastic meningitis is characterised by multifocal neurological signs and symptoms. Thus, careful neurological examination is needed for diagnosis of secondary diffuse involvement. Survival of patients with neoplastic meningitis is short (3-4 months), although some patients have long-lasting remission. Because most patients with neoplastic meningitis have diffuse systemic disease, treatment is typically palliative. However, more aggressive treatments are available to low-risk patients, which could increase survival. Therefore, identification of low-risk patients is important. Intrathecal chemotherapy is currently the main treatment for patients with neoplastic meningitis, but optimum anticancer chemotherapy is being studied.


Asunto(s)
Antineoplásicos/administración & dosificación , Carcinomatosis Meníngea/tratamiento farmacológico , Carcinomatosis Meníngea/secundario , Metástasis de la Neoplasia/tratamiento farmacológico , Humanos , Inyecciones Espinales , Meningitis/etiología , Neoplasias/complicaciones , Neoplasias/tratamiento farmacológico , Neoplasias/patología
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