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1.
Curr Oncol ; 24(6): e446-e465, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-29270054

RESUMEN

AIM: The overall goal of the present study was to contribute to consistency in the provincial approach to survivorship care planning through knowledge synthesis and exchange. Our review focused on the research concerning the physical and emotional challenges of breast cancer (bca) patients and survivors and the effects of the interventions that have been used for lessening those challenges. METHODS: The psychosocial topics identified in bca survivorship care plans created by two different initiatives in our province provided the platform for our search criteria: quality of life (qol), sexual function, fatigue, and lifestyle behaviours. We conducted an umbrella review to retrieve the best possible evidence, and only reviews investigating the intended outcomes in bca survivors and having moderate-to-high methodologic quality scores were included. RESULTS: Of 486 reports retrieved, 51 reviews met the inclusion criteria and form part of the synthesis. Our results indicate that bca patients and survivors experience numerous physical and emotional challenges and that interventions such as physical activity, psychoeducation, yoga, and mindfulness-based stress reduction are beneficial in alleviating those challenges. CONCLUSIONS: Our study findings support the existing survivorship care plans in our province with respect to the physical and emotional challenges that bca survivors often face. However, the literature concerning cancer risks specific to bca survivors is scant. Although systematic reviews are considered to be the "gold standard" in knowledge synthesis, our findings suggest that much remains to be done in the area of synthesis research to better guide practice in cancer survivorship.

2.
Curr Oncol ; 23(5): e488-e498, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27803610

RESUMEN

AIM: In the present study, we synthesized the published literature about the psychosocial aspects of colorectal cancer (crc) survivorship to support an update of the evidentiary base of the survivorship care plans (scps) created in our jurisdiction. METHODS: The psychosocial topics identified in the crc scps created by two different initiatives in our province were used as search criteria: quality of life (qol), sexual function, fatigue, and lifestyle behaviors. An umbrella review was conducted to retrieve the best possible evidence. Only reviews that investigated the intended outcomes in crc survivors and those with moderate-to-high methodologic quality scores were included. RESULTS: Of 462 retrieved reports, eight reviews met the inclusion criteria for the synthesis. Of those eight, six investigated the challenges of crc survivors and two investigated the effect of physical activity on survivor well-being. Our results indicate that emotional and physical challenges are common in crc survivors and that physical activity is associated with clinically important benefits for the fatigue and physical functioning of crc survivors. CONCLUSIONS: Our study findings update the evidence and indicate that existing scps in our province concerning the physical and emotional challenges of crc survivors reflect the evidence at the time of their issue. However, the literature concerning cancer risks specific to crc survivors is lacking. Although systematic reviews are considered to be the "gold standard" in knowledge synthesis, our findings suggest that much remains to be done in the area of synthesis research to better guide practice in cancer survivorship.

3.
Curr Oncol ; 21(3): e466-79, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24940107

RESUMEN

BACKGROUND: Health agencies across the world have echoed the recommendation of the U.S. Institute of Medicine (iom) that survivorship care plans (scps) should be provided to patients upon completion of treatment. To date, reviews of scps have been limited to the United States. The present review offers an expanded scope and describes how scps are being designed, delivered, and evaluated in various countries. METHODS: We collected scps from Canada, the United States, Europe, the United Kingdom, Australia, and New Zealand. We selected for analysis the scps for which we could obtain the actual scp, information about the delivery approach, and evaluation data. We conducted a content analysis and compared the scps with the iom guidelines. RESULTS: Of 47 scps initially identified, 16 were analyzed. The scps incorporated several of the iom's guidelines, but many did not include psychosocial services, identification of a key point of contact, genetic testing, and financial concerns. The model of delivery instituted by the U.K. National Cancer Survivorship Initiative stands out because of its unique approach that initiates care planning at diagnosis and stratifies patients into a follow-up program based on self-management capacities. SUMMARY: There is considerable variation in the approach to delivery and the extent to which scps follow the original recommendations from the iom. We discuss the implications of this review for future care-planning programs and prospective research. A holistic approach to care that goes beyond the iom recommendations and that incorporates care planning from the point of diagnosis to beyond completion of treatment might improve people's experience of cancer care.

4.
Curr Oncol ; 20(6): e493-511, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24311950

RESUMEN

BACKGROUND: Healthy lifestyle behaviours may improve outcomes for people with colorectal cancer (crc), but the intention to take action and to change those behaviours may vary with time and resource availability. We aimed to estimate the prevalence of current lifestyle behaviours in people with and without crc in our community, and to identify their desire to change and their resource preferences. METHODS: A mixed-methods survey was completed by people diagnosed with crc who were pre-treatment (n = 54), undergoing treatment (n = 62), or done with treatment for less than 6 months (n = 67) or for more than 6 months (n = 178), and by people without cancer (n = 83). RESULTS: Current lifestyle behaviours were similar in all groups, with the exception of vigorous physical activity levels, which were significantly lower in the pre-treatment and ongoing treatment respondents than in cancer-free respondents. Significantly more crc respondents than respondents without cancer had made lifestyle changes. Among the crc respondents, dietary change was the change most frequently made (39.3%), and increased physical activity was the change most frequently desired (39.1%). Respondents wanted to use complementary and alternative medicine (cam), reading materials, self-efficacy, and group activities to make future changes. CONCLUSIONS: Resources for lifestyle change should be made available for people diagnosed with crc, and should be tailored to address physical activity, cam, and diet. Lifestyle programs offered throughout the cancer trajectory and beyond treatment completion might be well received by people with crc.

5.
Eur J Cancer Care (Engl) ; 21(3): 296-320, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22416737

RESUMEN

Because cancer care requires a multifaceted approach, providing useful and timely information to people with colorectal cancer may be fragmented and inconsistent. Our interest was in examining what has and has not captured the attention of researchers speaking to the information needs of people with colorectal cancer. We followed Arksey and O'Malley's framework for the methodology of scoping review. Focusing solely on colorectal cancer, we analysed 239 articles to get a picture of which information needs and sources of information, as well as the timing of providing information, were attended to. Treatment-related information received the most mentions (26%). Healthcare professionals (49%) were mentioned as the most likely source of information. Among articles focused on one stage of the care continuum, post-treatment (survivorship) received the most attention (16%). Only 27% of the articles consulted people with colorectal cancer and few attended to diet/nutrition and bowel management. This study examined the numerical representation of issues to which researchers attend, not the quality of the mentions. We ponder, however, on the relationship between the in/frequency of mentions and the actual information needs of people with colorectal cancer as well as the availability, sources and timing of information.


Asunto(s)
Neoplasias Colorrectales , Necesidades y Demandas de Servicios de Salud , Servicios de Información , Educación del Paciente como Asunto , Humanos
6.
Braz. j. biol ; 68(4): 889-895, Nov. 2008. ilus
Artículo en Inglés | LILACS | ID: lil-504510

RESUMEN

The embryonic development of freshwater triclads is mainly known from studies of species of Dendrocoelum, Planaria, Polycelis, and, more recently, Schmidtea. The present study characterizes the development of Girardia tigrina (Girard, 1850) by means of optical microcopy using glycol methacrylate semi-thin sections. 94 cocoons were collected in the period from laying to hatching, with intervals of up to twenty-four hours. The sequence of morphological changes occurring in the embryo permitted the identification of nine embryonic stages. At the time of cocoon laying, numerous embryos were dispersed among many yolk cells, with a rigid capsule covering the entire cocoon. In the first stage (approx. up to 6 hours after cocoon laying), yolk cells and embryonic cells showed random distribution. Stage II (between 12 and 24 hours after cocoon laying) is characterized by aggregates of blastomeres, which later aggregate forming an enteroblastula. Approximately 2 days after cocoon laying (stage III), formation of the embryonic epidermis and embryonic digestive system took place, the latter degenerating during the subsequent stage. Stage V (until the fourth day) is characterized by the formation of the definitive epidermis. Between 4 and 6 days after laying, organogenesis of the definitive inner organs starts (stage VI). Approximately 14 days after laying (stage IX), formation of the nervous system is completed. At this stage, the embryo shows similar characteristics to those of newly hatched juveniles. The hatching of Girardia tigrina occurs in the period between twelve to twenty-two days after cocoon laying.


O desenvolvimento embrionário dos tricladidos é conhecido, fundamentalmente, por estudos realizados em espécies de Dendrocoelum, Planaria, Polycelis e, mais recentemente, Schmidtea. O presente estudo descreve o desenvolvimento embrionário de Girardia tigrina (Girard, 1850), a partir de análises realizadas em cortes histológicos seriados e semifinos de glicol-metacrilato, ao microscópio óptico. Noventa e quatro casulos foram coletados no período entre a postura e a eclosão, em intervalos de até vinte e quatro horas. A seqüência das modificações morfológicas no embrião permitiu a identificação de nove estágios embrionários. Na postura dos casulos, envoltos por uma cápsula rígida, observam-se numerosos embriões dispersos entre grande quantidade de células vitelinas. No estágio I (aproximadamente até 6 horas após a postura), as células vitelinas e as embrionárias mostram uma distribuição aleatória. O estágio II (entre 12 e 24 horas após a postura) caracteriza-se pela formação de agrupamentos de blastômeros, os quais posteriormente formam uma enteroblástula. Aproximadamente dois dias após a postura (estágio III), ocorre a formação da epiderme e do sistema digestivo embrionário, sendo que este último degenera no estágio seguinte. O estágio V (até o quarto dia após a postura) caracteriza-se pela formação da epiderme definitiva. Entre o quarto e o sexto dia posteriores à postura, começa a organogênese dos órgãos internos definitivos (estágio VI). Aproximadamente catorze dias após a postura (estágio IX), completa-se a formação do sistema nervoso. Neste estágio, o embrião já apresenta características similares aos espécimes juvenis. A eclosão de Girardia tigrina ocorre entre doze e vinte e dois dias após a postura dos casulos.


Asunto(s)
Animales , Embrión no Mamífero/embriología , Platelmintos/embriología , Desarrollo Embrionario , Embrión no Mamífero/anatomía & histología , Platelmintos/anatomía & histología , Factores de Tiempo
7.
Braz J Biol ; 68(4): 889-95, 2008 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19197510

RESUMEN

The embryonic development of freshwater triclads is mainly known from studies of species of Dendrocoelum, Planaria, Polycelis, and, more recently, Schmidtea. The present study characterizes the development of Girardia tigrina (Girard, 1850) by means of optical microcopy using glycol methacrylate semi-thin sections. 94 cocoons were collected in the period from laying to hatching, with intervals of up to twenty-four hours. The sequence of morphological changes occurring in the embryo permitted the identification of nine embryonic stages. At the time of cocoon laying, numerous embryos were dispersed among many yolk cells, with a rigid capsule covering the entire cocoon. In the first stage (approx. up to 6 hours after cocoon laying), yolk cells and embryonic cells showed random distribution. Stage II (between 12 and 24 hours after cocoon laying) is characterized by aggregates of blastomeres, which later aggregate forming an enteroblastula. Approximately 2 days after cocoon laying (stage III), formation of the embryonic epidermis and embryonic digestive system took place, the latter degenerating during the subsequent stage. Stage V (until the fourth day) is characterized by the formation of the definitive epidermis. Between 4 and 6 days after laying, organogenesis of the definitive inner organs starts (stage VI). Approximately 14 days after laying (stage IX), formation of the nervous system is completed. At this stage, the embryo shows similar characteristics to those of newly hatched juveniles. The hatching of Girardia tigrina occurs in the period between twelve to twenty-two days after cocoon laying.


Asunto(s)
Embrión no Mamífero/embriología , Platelmintos/embriología , Animales , Embrión no Mamífero/anatomía & histología , Desarrollo Embrionario , Platelmintos/anatomía & histología , Factores de Tiempo
8.
Arch Environ Contam Toxicol ; 52(1): 90-6, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17031756

RESUMEN

The disruption of endocrine system function in wildlife species, including teleosts, by contaminants such as metals is presently of major environmental concern. Recently, it has been shown that cadmium (Cd) exposure results in significant reductions in corticosteroid secretion by fish interrenal steroidogenic cells, likely through an inhibition of intracellular cortisol synthesis. In the present study, the effects of CdCl(2) on unstimulated and stimulated interrenal steroidogenesis in rainbow trout were examined with the intention of furthering an understanding of the site(s) of Cd toxic action. CdCl(2) alone reduced cortisol secretion in minced interrenal tissues to 59% and 55% of control values when exposed to 10 and 100 microM, respectively. Incubation of interrenal tissues with 0.01 IU/mL adrenocorticotropic hormone (ACTH), which activates rate-limiting steps in steroid synthesis, resulted in significant stimulation of steroidogenesis in controls. However, ACTH-stimulated steroidogenesis was reduced when tissues were previously incubated with Cd. Maximal rates of unstimulated cortisol secretion were achieved by augmentation using 5 microM 25-hydroxycholesterol (25-OHC) or 0.8 microL/mL synthetic cholesterol [SyntheChol(SC)]. Steroidogenesis augmentation by 25-OHC was significantly reduced in tissues incubated with Cd. Interestingly, cortisol secretion was significantly higher in SC-augmented tissue exposed to 1 and 10 microM Cd when compared to augmented control tissues. The results of this study show that Cd affects both stimulated and unstimulated steroidogenesis in rainbow trout, and that one major site(s) of action of Cd in the cortisol synthesis pathway is likely prior to cytochrome P450 side chain cleavage.


Asunto(s)
Cadmio/toxicidad , Glándula Interrenal/efectos de los fármacos , Oncorhynchus mykiss , Contaminantes Químicos del Agua/toxicidad , Hormona Adrenocorticotrópica/farmacología , Animales , Supervivencia Celular/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Combinación de Medicamentos , Femenino , Hidrocortisona/metabolismo , Hidroxicolesteroles/farmacología , Técnicas In Vitro , Glándula Interrenal/metabolismo , Glándula Interrenal/patología , Masculino
9.
Braz J Biol ; 61(2): 341-5, 2001 May.
Artículo en Inglés | MEDLINE | ID: mdl-11514904

RESUMEN

The objective of the present study was to adapt techniques for the histological processing of Dugesiidae cocoons for the study of embryo development. The cocoons were fixed with formalin, SUSA, Bouin or paraformaldehyde/glutaraldehyde and subsequently embedded in Paraplast or glycol methacrylate (Historesin). Paraplast embedding yielded reasonable results only after the cocoon was perforated or fixed for a prolonged period of time using softening techniques with acid solutions. When the SUSA or Bouin fixative and Historesin embedding techniques were used the results were good for light microscopical analysis. Fixation with paraformaldehyde/glutaraldehyde and glycol methacrylate embedding resulted in better tissue preservation, and did not require prolonged fixation or softening techniques. Thus, we suggest this technique for light microscopical analysis of embryo development in Dugesiidae.


Asunto(s)
Platelmintos/embriología , Fijación del Tejido/métodos , Animales , Fijadores , Formaldehído , Técnicas Histológicas/métodos , Metacrilatos
10.
Rev. bras. biol ; 61(2): 341-345, May 2001. ilus, tab
Artículo en Inglés | LILACS | ID: lil-298652

RESUMEN

The objective of the present study was to adapt techniques for the histological processing of Dugesiidae cocoons for the study of embryo development. The cocoons were fixed with formalin, SUSA, Bouin or paraformaldehyde/glutaraldehyde and subsequently embedded in Paraplast or glycol methacrylate (Historesin). Paraplast embedding yielded reasonable results only after the cocoon was perforated or fixed for a prolonged period of time using softening techniques with acid solutions. When the SUSA or Bouin fixative and Historesin embedding techniques were used the results were good for light microscopical analysis. Fixation with paraformaldehyde/glutaraldehyde and glycol methacrylate embedding resulted in better tissue preservation, and did not require prolonged fixation or softening techniques. Thus, we suggest this technique for light microscopical analysis of embryo development in Dugesiidae


Asunto(s)
Animales , Fijadores , Formaldehído , Platelmintos/anatomía & histología , Fijación del Tejido/métodos , Platelmintos/crecimiento & desarrollo
11.
Bol Chil Parasitol ; 53(3-4): 52-7, 1998.
Artículo en Inglés | MEDLINE | ID: mdl-10413879

RESUMEN

In the present study we investigated the ultrastructural alterations occurring in the renal glomeruli of sheep with hydatidosis. Renal samples from 39 sheep, 34 with hydatidosis and 5 without parasitosis, were examined by transmission electron microscopy. Additionally, biochemical analysis was performed by determining serum concentrations of creatinine, urea, total protein and albumin. The ultrastructural alterations identified were the presence of dense mesangial, subendothelial and intra-membranous deposits, mesangial cell proliferation with areas showing segmental sclerosis and interposition of mesangial cells with the formation of a neomembrane. Biochemical analysis revealed a significant increase in total serum protein in the experimental group compared with the control. Our results demonstrated that glomerulonephritis associated with hydatidosis in sheep can be classified into four categories: minimal lesions, mesangial glomerulonephritis, segmental and focal glomerulonephritis and membranoproliferative glomerulonephritis, being membranoproliferative and mesangial glomerulonephritis the most predominant categories.


Asunto(s)
Equinococosis/veterinaria , Glomerulonefritis/veterinaria , Glomérulos Renales/ultraestructura , Enfermedades de las Ovejas/patología , Animales , Proteínas Sanguíneas/análisis , Creatinina/sangre , Equinococosis/sangre , Equinococosis/complicaciones , Equinococosis/patología , Glomerulonefritis/complicaciones , Microscopía Electrónica , Albúmina Sérica/análisis , Índice de Severidad de la Enfermedad , Ovinos , Urea/sangre
12.
Braz J Med Biol Res ; 28(6): 679-83, 1995 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-8547852

RESUMEN

The clastogenic effect of the drug cis-diamminedichloroplatinum II (cisplatin, CDDP) was investigated in Wistar rat bone marrow cells. Male rats, 3 per treatment time, aged 4 months and weighing 250-350 g were injected intraperitoneally with 6.0 mg/kg CDDP solution, and the control group received isotonic saline. The animals were sacrificed 6, 12, 18, 24 and 48 h after the injection. The chromosome preparation was obtained from bone marrow cells. Chromatid and chromosome aberrations were investigated in 300 metaphases per animal. A significant increase in number of chromosome aberrations was observed from 6 to 24 h, the majority being of the break and gap type. After 48 h a progressive reduction was observed, without differences from the negative control. These data confirm the mutagenic effect of CDDP in rats demonstrated for mice bone marrow by micronuclei assay, for murine ovary cells and mice spermatocytes.


Asunto(s)
Células de la Médula Ósea , Aberraciones Cromosómicas/genética , Cisplatino/farmacología , Mutágenos/farmacología , Animales , Médula Ósea/efectos de los fármacos , Masculino , Pruebas de Mutagenicidad , Ratas , Ratas Wistar
13.
Braz. j. med. biol. res ; 28(6): 679-83, Jun. 1995. ilus, tab
Artículo en Inglés | LILACS | ID: lil-154938

RESUMEN

The clastogenic effect of the drug cis-diamminedichloroplatinum II (cisplatin, CDDP) was investigated in Wistar rat bone marrow cells. Male rats, 3 per treatment time, aged months and weighing 250-350 g were injected intraperitoneally with 6.0 mg/Kg CDDP solution, and the control group received isotonic saline. The animals were sacrificed 6, 12, 18, 24 and 48h after the injection. the chromosome preparation was obtained from bone marrow cells. Chromatid and chromosome aberrations were investigated in 300 metaphases per animal. A significant increase in number of chromosome aberration was observed from 6 to 24h, the majority being of the break and gap type. After 48 h a progressive reduction was observed, without differences from the negative control. These date confirm the mutagenic effect of CDDP in rats demonstrated for mice bone marrow by micronuclei assay, for murine ovary cells and mice spermatocytes


Asunto(s)
Animales , Masculino , Ratas , Aberraciones Cromosómicas/genética , Cisplatino/administración & dosificación , Médula Ósea/citología , Cisplatino/farmacología , Médula Ósea , Ratas Wistar
14.
Bol Chil Parasitol ; 47(3-4): 61-3, 1992.
Artículo en Inglés | MEDLINE | ID: mdl-1306999

RESUMEN

Fifteen male Wistar rats were inoculated intra peritoneally with material obtained from a human hepatic hydatid cyst with 20% viability and previously inactivated with 20% NaCl. When the animals were sacrificed six months later, hydatid granulomas surrounding parasitic remains were detected in the peritoneum.


Asunto(s)
Equinococosis/patología , Animales , Equinococosis/prevención & control , Masculino , Ratas , Ratas Wistar , Cloruro de Sodio/uso terapéutico
15.
Rev Assoc Med Bras (1992) ; 38(1): 31-2, 1992.
Artículo en Portugués | MEDLINE | ID: mdl-1307057

RESUMEN

A patient with hydatid cyst of the presented stunted growth, normal renal function and no significant proteinuria. The radiological abdominal investigation disclosed, besides the hydatid cyst, horseshoe kidneys. Renal biopsy was performed during surgery. Immunofluorescence (direct and indirect) and immunoperoxidase studies revealed glomerular deposits of hydatid antigen and its corresponding antibody. A grade I immune complex type of membranous glomerulonephritis, without significant clinical signs, was diagnosed in association with the hepatic hydatid disease.


Asunto(s)
Equinococosis Hepática/complicaciones , Glomerulonefritis Membranosa/complicaciones , Niño , Equinococosis Hepática/patología , Glomerulonefritis Membranosa/patología , Humanos , Riñón/anomalías , Masculino
16.
Bol Chil Parasitol ; 46(3-4): 79-81, 1991.
Artículo en Inglés | MEDLINE | ID: mdl-1726920

RESUMEN

Thirty specimens of Echinococcus sp. obtained by anti-helminthic treatment using arecoline hydrobromide from a dog from an Echinococcosis endemic region were fixed in 10% formalin. The material was processed histologically by a rapid manual method and stained using eleven different techniques. Green Trichrome staining as modified in the present study permitted the observation of large structures of Echinococcus sp. tapeworms.


Asunto(s)
Echinococcus/anatomía & histología , Coloración y Etiquetado/métodos , Animales
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