1
|
Maridevaru MC, Dube A, Kaimal R, Souwaileh AA, Kannadasan S, Anandan S. An iron metal-organic framework-based electrochemical sensor for identification of Bisphenol-A in groundwater samples. Analyst 2024; 149:3325-3334. [PMID: 38695769 DOI: 10.1039/d4an00499j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Bisphenol A (BPA) is an endocrine disruptor that leaches into food and is significantly employed in food and beverage storage, and source water cycles. To ensure an outstanding and sustainable biosphere while safeguarding human health and well-being, BPA detection is essential, necessitating an efficient detection methodology. Here, we describe an easy-to-use, inexpensive, and overly sensitive electrochemical detector that uses Fe-MOF nanotextures for identifying BPA in groundwater. This sensing electrode device combines the excellent guest interaction potential of organic ligands with the substantial surface area of metal. Using various analytical techniques including scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), and powder X-ray diffraction (XRD), the structural and physicochemical behaviors of the as-synthesized material were evaluated. Electrochemical BPA detection was enabled by a diffusion-controlled oxidation procedure with a comparable number of both protons and electrons. With a 0.1 μM detection limit, the sensor displayed a linear sensitivity of around 0.1 μM and 15 μM. Additionally, the sensors demonstrated an outstanding recovery with actual water samples as well as a repeatable and steady performance over the course of a month exhibiting minimal interference from typical inorganic and organic species. Due to its notable sensitivity, inexpensive cost, robust selectivity, excellent repeatability, and reuse ability, the electroanalytical possibilities of the Fe-MOF-modified GCE suggest that the device can be implemented into real-world applications in its primed condition.
Collapse
Affiliation(s)
- Madappa C Maridevaru
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India.
| | - Aashutosh Dube
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India.
| | - Reshma Kaimal
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India.
| | - Abdullah Al Souwaileh
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sathananthan Kannadasan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
| | - Sambandam Anandan
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India.
| |
Collapse
|
2
|
Dang S, Kumari P. Anti-cancer potential of some commonly used drugs. Curr Pharm Des 2021; 27:4530-4538. [PMID: 34161206 DOI: 10.2174/1381612827666210622104821] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/18/2021] [Indexed: 12/24/2022]
Abstract
Cancer is a global concern leading to millions of deaths every year. A declining trend in new drug discovery and development is becoming one of the major issues among the pharmaceutical, biotechnology industries, and regulatory agencies. New drug development is proven to be a very lengthy and costly process. The launch of a new drug takes 8-12 years and huge investments. The success rate in oncology therapeutics is also low due to toxicities at the pre-clinical and clinical trial levels. Many oncological drugs get rejected at a very promising stage, showing adverse reactions on healthy cells. Thus, exploring new therapeutic benefits of the existing, shelved drugs for their anti-cancerous action could result in a therapeutic approach preventing the toxicities which occur during clinical trials. Drug repurposing has the potential to overcome the challenges faced via conventional way of drug discovery and is becoming an area of interest for researchers and scientists. However, very few in vivo studies are conducted to prove the anti-cancerous activity of the drugs. Insufficient in vivo animal studies and a lack of human clinical trials are the lacunae in the field of drug repurposing. This review focuses on an aspect of drug repurposing for cancer therapeutics. Various studies that show that drugs approved for clinical indications other than cancer have shown promising anti-cancer activities. Some of the commonly used drugs like Benzodiazepines (Diazepam, Midzolam), Antidepressants (Imipramine, Clomipramine, and Citalopram), Antiepileptic (Valporic acid, Phenytoin), Antidiabetics (metformin), etc. have been reported to show potential activity against the cancerous cells.
Collapse
Affiliation(s)
- Shweta Dang
- Department of Biotechnology, Jaypee Institute of Information Technology, NOIDA, U.P, India
| | - Pallavi Kumari
- Department of Biotechnology, Jaypee Institute of Information Technology, NOIDA, U.P, India
| |
Collapse
|
3
|
Abstract
OBJECTIVE Social support has been reported as beneficial for the psychological functioning of people coping with a disease. The objective of this study was to verify whether levels of perceived social support are associated with psychosocial functioning in women who have had a mastectomy and whether specific types of social support are linked to specific indices of functioning. METHOD Seventy women with a history of mastectomy completed questionnaires measuring their psychosocial functioning as related to their health status: Disease-Related Appraisal Scale, Acceptance of Life with the Disease Scale and Beck Depression Inventory. All participants also completed a measure of perceived social support (Disease-Related Social Support Scale). RESULTS Women who reported higher levels of perceived social support revealed statistically significantly lower levels of depressive symptoms, higher appraisals of their disease in terms of challenge and value, and lower appraisals of their disease in terms of obstacle/loss. Women with greater social support also revealed higher levels of acceptance of life with the disease compared to those with less social support. Regression analyses showed that spiritual support was the type of support that significantly accounted for the variance in the majority of functioning indices. Some indices of functioning were also significantly accounted for by emotional and instrumental support. SIGNIFICANCE OF THE RESULTS The process of psychological adjustment to a life-threatening disease such as breast cancer depends on multiple variables; however, social support, including spiritual support, seems to be one significant contributor to this process.
Collapse
|
4
|
Davies CF, Macefield R, Avery K, Blazeby JM, Potter S. Patient-Reported Outcome Measures for Post-mastectomy Breast Reconstruction: A Systematic Review of Development and Measurement Properties. Ann Surg Oncol 2021; 28:386-404. [PMID: 32602063 PMCID: PMC7752876 DOI: 10.1245/s10434-020-08736-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Breast reconstruction (BR) is performed to improve outcomes for patients undergoing mastectomy. A recently developed core outcome set for BR includes six patient-reported outcomes that should be measured and reported in all future studies. It is vital that any instrument used to measure these outcomes as part of a core measurement set be robustly developed and validated so data are reliable and accurate. The aim of this systematic review is to evaluate the development and measurement properties of existing BR patient-reported outcome measures (PROMs) to inform instrument selection for future studies. METHODS A PRISMA-compliant systematic review of development and validation studies of BR PROMs was conducted to assess their measurement properties. PROMs with adequate content validity were assessed using three steps: (1) the methodological quality of each identified study was assessed using the COSMIN Risk of Bias checklist; (2) criteria were applied for assessing good measurement properties; and (3) evidence was summarized and the quality of evidence assessed using a modified GRADE approach. RESULTS Fourteen articles reported the development and measurement properties of six PROMs. Of these, only three (BREAST-Q, BRECON-31, and EORTC QLQ-BRECON-23) were considered to have adequate content validity and proceeded to full evaluation. This showed that all three PROMs had been robustly developed and validated and demonstrated adequate quality. CONCLUSIONS BREAST-Q, BRECON-31, and EORTC QLQ-BRECON-23 have been well-developed and demonstrate adequate measurement properties. Work with key stakeholders is now needed to generate consensus regarding which PROM should be recommended for inclusion in a core measurement set.
Collapse
Affiliation(s)
- C F Davies
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Bristol, UK.
| | - R Macefield
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Bristol, UK
| | - K Avery
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Bristol, UK
| | - J M Blazeby
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Bristol, UK
- University Hospitals Bristol Foundation NHS Trust, Bristol, UK
| | - S Potter
- Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Bristol, UK
- Bristol Breast Care Centre, North Bristol NHS Trust, Bristol, UK
| |
Collapse
|
5
|
Le NK, Gabrick KS, Chouairi F, Mets EJ, Avraham T, Alperovich M. Impact of socioeconomic status on psychological functioning in survivorship following breast cancer and reconstruction. Breast J 2020; 26:1695-1701. [DOI: 10.1111/tbj.13849] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/03/2020] [Accepted: 04/08/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Nicole K. Le
- Section of Plastic and Reconstructive Surgery Department of Surgery Yale University School of Medicine New Haven CT USA
- Department of Plastic Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Kyle S. Gabrick
- Section of Plastic and Reconstructive Surgery Department of Surgery Yale University School of Medicine New Haven CT USA
| | - Fouad Chouairi
- Section of Plastic and Reconstructive Surgery Department of Surgery Yale University School of Medicine New Haven CT USA
| | - Elbert J. Mets
- Section of Plastic and Reconstructive Surgery Department of Surgery Yale University School of Medicine New Haven CT USA
| | - Tomer Avraham
- Section of Plastic and Reconstructive Surgery Department of Surgery Yale University School of Medicine New Haven CT USA
| | - Michael Alperovich
- Section of Plastic and Reconstructive Surgery Department of Surgery Yale University School of Medicine New Haven CT USA
| |
Collapse
|
6
|
Yang CE, Lee WY, Cheng HW, Chung CH, Mi FL, Lin CW. The antipsychotic chlorpromazine suppresses YAP signaling, stemness properties, and drug resistance in breast cancer cells. Chem Biol Interact 2019; 302:28-35. [DOI: 10.1016/j.cbi.2019.01.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 01/23/2019] [Accepted: 01/26/2019] [Indexed: 01/06/2023]
|
7
|
Fruit and vegetable intake and breast cancer prognosis: a meta-analysis of prospective cohort studies. Br J Nutr 2017; 117:737-749. [DOI: 10.1017/s0007114517000423] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
AbstractThe effect of fruit and vegetable intake on breast cancer prognosis is controversial. Thus, a meta-analysis was carried out to explore their associations. A comprehensive search was conducted in PubMed, Web of Science, OVID, ProQuest and Chinese databases from inception to April 2016. The summary hazard ratios (HR) and 95 % CI were estimated using a random effects model if substantial heterogeneity existed and using a fixed effects model if not. Subgroup analyses and sensitivity analyses were also performed. In total, twelve studies comprising 41 185 participants were included in the meta-analysis. Comparing the highest with the lowest, the summary HR for all-cause mortality were 1·01 (95 % CI 0·72, 1·42) for fruits and vegetables combined, 0·96 (95 % CI 0·83, 1·12) for total vegetable intake, 0·99 (95 % CI 0·89, 1·11) for cruciferous vegetable intake and 0·88 (95 % CI 0·74, 1·05) for fruit intake; those for breast cancer-specific mortality were 1·05 (95 % CI 0·77, 1·43) for total vegetable intake and 0·94 (95 % CI 0·69, 1·26) for fruit intake; and those for breast cancer recurrence were 0·89 (95 % CI 0·53, 1·50) for total vegetable intake and 0·98 (95 % CI 0·76, 1·26) for cruciferous vegetable intake. This meta-analysis found no significant associations between fruit and vegetable intake and breast cancer prognosis.
Collapse
|
8
|
Breast Carcinoma; Human Epidermal Growth Factor Receptor-2 (HER-2) and Grading Correlation. INTERNATIONAL JOURNAL OF TRAVEL MEDICINE AND GLOBAL HEALTH 2015. [DOI: 10.20286/ijtmgh-030395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
9
|
Dunham M, Ingleton C, Ryan T, Gott M. A narrative literature review of older people's cancer pain experience. J Clin Nurs 2013; 22:2100-13. [PMID: 23551294 DOI: 10.1111/jocn.12106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2012] [Indexed: 01/18/2023]
Abstract
AIMS AND OBJECTIVES To synthesise current evidence about the experience of older people with cancer pain and consider how exploration of this may inform clinical practice and research. BACKGROUND Cancer is more prevalent in older age. Evidence suggests that older people's pain is generally under-recognised and under treated. Pain is a significant concern for many people living and dying with cancer and may be of particular concern for older people who may have complex biopsychosocial needs. There is mounting evidence that older people and their families experience high level of unmet need generally and suboptimal pain in particular. DESIGN Narrative literature review. METHOD A comprehensive search of five electronic databases was undertaken between the years 1996-2010 inclusive. Inclusion criteria were primary research papers relating older peoples' experiences of cancer pain, incorporating the verbal report or narrative account of experience of cancer. RESULTS Seventeen papers met the criteria for inclusion in the review. Three major themes emerged from the literature: (1) emotional experience identified by older people with cancer pain, (2) effects of pain on life and living, and (3) how communication affects the experience or expression of cancer pain including subthemes of validating, trust and cultural effects on the communication of pain. CONCLUSION There is limited research about older people's cancer pain from the perspective of the person experiencing the pain. This review highlights the need for further research into living and dying with cancer pain which incorporates the unique and individual experience of older people. RELEVANCE TO CLINICAL PRACTICE Understanding the complexity and nature of older people's cancer pain experience should inform appropriate effective care that improves quality of life and promotes independence and dignity. Culturally sensitive training in communication may enhance understanding of the needs of older people with cancer pain.
Collapse
Affiliation(s)
- Margaret Dunham
- Department of Nursing & Midwifery, Sheffield Hallam University, Sheffield, UK.
| | | | | | | |
Collapse
|
10
|
El-Beshbeshi W, Abo-Elnaga EM. Male breast cancer: 10-year experience at mansoura university hospital in egypt. Cancer Biol Med 2012; 9:23-8. [PMID: 23691450 PMCID: PMC3643641 DOI: 10.3969/j.issn.2095-3941.2012.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Accepted: 03/01/2012] [Indexed: 01/21/2023] Open
Abstract
Objective Male breast cancer (MBC) is a rare disease representing less than 1% of all malignancies. The objective of the study is to report clinicopathological characteristics, treatment patterns, and outcomes of MBC in Mansoura University Hospital, Egypt. Methods This retrospective study focused on male breast cancer patients during 10 years (2000-2009). The studied variables were data regarding general characteristics of patients, treatment modalities and survival. Results The series included 37 patients (0.8% of all breast cancer). The median age was 57.7 years (range: 26-86 years). The main clinical complaint was a mass beneath the areola in 94.5% of the cases. Most patients had a locally advanced disease. 94.5% of tumors were invasive duct carcinomas. The treatment was essentially surgery in 91.8%, followed by adjuvant radiotherapy (in 89.2%), hormonal therapy (in 56.7%) and chemotherapy (in 91.8%). Follow-up period ranged from 6-115 months. Local recurrence occurred in 4 cases and metastasis in 11 cases. The 2-year and 5-year overall survival (OS) rates were 81.6% and 60.5%, respectively. The 2-year and 5-year disease-free survival (DFS) rates were 68.4%, and 52.6%, respectively. OS was not significantly affected by any of the studied parameters. Factors influencing DFS were: T stage (P=0.05), positive lymph nodes (P=0.043), metastasis (P=0.004), and chemotherapy (P=0.046). Conclusions MBC is a rare disease and often diagnosed at a locally advanced stage. The management of male and female breast carcinoma is identical. Future research for better understanding of this disease is needed to improve the management and prognosis of male breast cancer patients.
Collapse
Affiliation(s)
- Wafaa El-Beshbeshi
- Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Mansoura University, Mansoura, El-Daklalia 002, Egypt
| | | |
Collapse
|
11
|
Kirsner RS, Ma F, Fleming LE, Federman DG, Trapido E, Duncan R, Rouhani P, Wilkinson JD. Earlier stage at diagnosis and improved survival among Medicare HMO patients with breast cancer. J Womens Health (Larchmt) 2010; 19:1619-24. [PMID: 20815756 DOI: 10.1089/jwh.2009.1768] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE We sought to evaluate differences in the stage at diagnosis and the survival of breast cancer patients enrolled in two different Medicare healthcare delivery systems: fee for service (FFS) and health maintenance organizations (HMO). METHODS We used a linkage of two national databases, the Medicare database from the Centers for Medicare and Medicaid Services (CMS), and the National Cancer Institute's (NCI) Surveillance, Epidemiology, and End Results (SEER) program database, to evaluate differences in demographic data, stage at diagnosis, and survival in patients with breast cancers over the period 1985-2001. RESULTS Medicare patients enrolled in HMOs were diagnosed at an earlier stage of diagnosis than FFS patients. HMO patients diagnosed with breast cancer had improved survival, and these differences remained even after controlling for potential confounders. Specifically, breast cancer patients enrolled in HMOs had 9% increased probability of survival (hazard ratio [HR] 0.91, 95% confidence interval [CI] 0.88-0.93) than their counterparts enrolled in FFS. These findings persisted even when patients had a cancer diagnosis before their breast cancer. CONCLUSIONS Improved survival among breast cancer patients in HMOs compared with FFS is likely due to a combination of factors, including but not limited to earlier stage at the time of diagnosis.
Collapse
Affiliation(s)
- Robert S Kirsner
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Department of Dermatology, Miami, Florida 33136, USA.
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Sinicrope PS, Patten CA, Clark LP, Brockman TA, Rock EE, Frost MH, Petersen LR, Vierkant RA, Vachon CM, Fredericksen ZS, Janney CA, Sellers TA, Cerhan JR. Adult daughters' reports of breast cancer risk reduction and early detection advice received from their mothers: an exploratory study. Psychooncology 2009; 18:169-78. [PMID: 18636437 DOI: 10.1002/pon.1393] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Awareness of cancer family history is dependent upon communication between family members. Communication of this information and related decision-making could be important factors influencing breast cancer risk reduction and early detection behaviors. Using survey data from 2328 women (mean age 62.5 years) from 372 families enrolled in the Minnesota breast cancer family study, we explored adult daughter's reports of breast cancer risk reduction advice received from their mothers. METHODS AND RESULTS Approximately 212 (9%) of respondents reported receiving breast cancer risk reduction advice from their mothers and 130 (89%) reported acting upon such advice. Having a mother or first degree relative (FDR) with a history of breast cancer was significantly correlated with following advice to a higher degree as compared with those not having such family history (p=0.003). Most frequently reported types of advice were to have mammograms (36%) and to have clinical breast exams (35%). Using multivariable logistic regression and after accounting for non-independence of the sample, significant independent correlates of receiving advice included younger age, having an affected mother, and having a higher perceived breast cancer risk. Receiving advice was also correlated with engaging in a higher number of health promoting behaviors and ever having received a mammogram. CONCLUSIONS Our preliminary findings are consistent with social influence theory and suggest that mother-daughter communication about reducing risk, especially among those having a FDR with breast cancer, could be a potential pathway through which breast cancer family history is associated with the adoption of breast cancer screening and risk reduction behaviors.
Collapse
Affiliation(s)
- Pamela S Sinicrope
- Mayo Clinic, College of Medicine, Behavioral Science Research, Rochester, MN 55901, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Kruk J. Leisure-time physical activity in relation to the risk of breast cancer. Eur J Sport Sci 2007. [DOI: 10.1080/17461390701401813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
14
|
Schueller G, Kaindl E, Langenberger H, Stadler A, Schueller-Weidekamm C, Semturs F, Helbich TH. Validation of image quality in full-field digital mammography: Is the replacement of wet by dry laser printers justified? Eur J Radiol 2007; 62:267-72. [PMID: 17188829 DOI: 10.1016/j.ejrad.2006.11.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2006] [Revised: 11/21/2006] [Accepted: 11/24/2006] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Dry laser printers have replaced wet laser printers to produce hard copies of high-resolution digital images, primarily because of environmental concerns. However, no scientific research data have been published that compare the image quality of dry and wet laser printers in full-field digital mammography (FFDM). This study questions the image quality of these printers. MATERIALS AND METHODS Objective image quality parameters of both printers were evaluated using a standardized printer test image, i.e., optical density and detectability of specific image elements (lines, curves, and shapes). Furthermore, mammograms of 129 patients with different breast tissue composition patterns were imaged with both printers. A total of 1806 subjective image quality parameters (brightness, contrast, and detail detection of anatomic structures), the detectability of breast lesions, as well as diagnostic performance according to the BI-RADS classification were evaluated. In addition, the presence of film artifacts was investigated. RESULTS Optical density values were equal for the dry and the wet laser printer. Detection of specific image elements on the printer test image was not different. Ratings of subjective image quality parameters were equal, as were the detectability of breast lesions and the diagnostic performance. Dry laser printer images showed more artifacts (164 versus 27). However, these artifacts did not influence image quality. CONCLUSION Based on the evidence of objective and subjective parameters, a dry laser printer equals the image quality of a wet laser printer in FFDM. Therefore, not only for reasons of environmental preference, the replacement of wet laser printers by dry laser printers in FFDM is justified.
Collapse
Affiliation(s)
- Gerd Schueller
- Department of Radiology, Medical University of Vienna, Waehringer Guertel 18-20/7F, A-1090 Vienna, Austria.
| | | | | | | | | | | | | |
Collapse
|
15
|
Lewis SJ, Harbord RM, Harris R, Smith GD. Meta-analyses of Observational and Genetic Association Studies of Folate Intakes or Levels and Breast Cancer Risk. ACTA ACUST UNITED AC 2006; 98:1607-22. [PMID: 17105984 DOI: 10.1093/jnci/djj440] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Evidence from case-control studies suggests that increasing dietary folate intake is associated with a reduced risk of breast cancer. However, large cohort studies have found no such association, and animal studies suggest that folate supplementation may promote tumorigenesis. We conducted a meta-analysis to summarize the available evidence from observational studies on this issue and a meta-analysis of the association between a common polymorphism in the 5,10-methylenetetrahydrofolate reductase (MTHFR) gene, a key enzyme in folate metabolism, and breast cancer risk. METHODS We searched Medline and ISI Web of Knowledge databases for relevant studies that were published through May 31, 2006. We used random-effects analysis to calculate odds ratios (ORs) for case-control studies or relative risks (RRs) for cohort studies for a 100-microg/d increase in folate intake. Unadjusted odds ratios were calculated for the studies of MTHFR genotype based on published genotype frequencies. RESULTS A total of 13 case-control studies and nine cohort studies were included in the meta-analysis of folate intake and breast cancer risk. We found a summary OR of 0.91 (95% confidence interval [CI] = 0.87 to 0.96) from the case-control studies and a summary RR of 0.99 (95% CI = 0.98 to 1.01) from the cohort studies for a 100-microg/d increase in folate intake. We found evidence that the case-control studies may have suffered from substantial publication bias. The case-control and cohort studies may have been subject to measurement error, confounding, and possibly spurious associations arising from subgroup analyses; in addition, the case-control studies were potentially subject to recall bias and publication bias. Seventeen studies were included in the meta-analysis of MTHFR C677T genotype and breast cancer risk. We found no difference in breast cancer risk between MTHFR 677 TT homozygotes and CC homozygotes (OR = 1.05, 95% CI = 0.88 to 1.25), and there was no evidence of an interaction between folate intake and MTHFR genotype on breast cancer risk. CONCLUSION A lack of dietary folate intake is not associated with the risk of breast cancer.
Collapse
Affiliation(s)
- Sarah J Lewis
- Department of Social Medicine, University of Bristol, Canynge Hall, Whiteladies Road, Bristol BS8 2PR, UK.
| | | | | | | |
Collapse
|
16
|
Kirsner RS, Ma F, Fleming L, Federman DG, Trapido E, Duncan R, Wilkinson JD. The effect of medicare health care delivery systems on survival for patients with breast and colorectal cancer. Cancer Epidemiol Biomarkers Prev 2006; 15:769-73. [PMID: 16614122 DOI: 10.1158/1055-9965.epi-05-0838] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Two of the most common types of health care delivery systems in the U.S. are fee-for-service (FFS) and managed care systems such as health maintenance organizations (HMO). Differences may exist in patient outcomes depending on the health care delivery system in which they are enrolled. We evaluated differences in the survival of patients with breast and colorectal cancer at diagnosis between the two Medicare health care delivery systems (FFS and HMO). METHODS We used a linkage of two national databases, the Medicare database from the Centers for Medicare and Medicaid Services, and the National Cancer Institute's Surveillance, Epidemiology, and End Results program database, to evaluate differences in demographic data, stage at diagnosis, and survival between breast and colorectal cancer over the period 1985 to 2001. RESULTS Medicare patients enrolled in HMOs were diagnosed at an earlier stage of diagnosis than FFS patients. HMO patients diagnosed with breast and colorectal cancer had improved survival, and these differences remained even after controlling for potential confounders (such as stage at diagnosis, age, race, socioeconomic status, and marital status). Specifically, patients enrolled in HMOs had 9% greater survival in hazards ratio if they had breast cancer, and 6% if they had colorectal cancer. CONCLUSIONS Differences exist in survival among patients in HMOs compared with FFS. This is likely due to a combination of factors, including but not limited to, earlier stage at the time of diagnoses.
Collapse
|
17
|
Ceber E, Soyer MT, Ciceklioglu M, Cimat S. Breast cancer risk assessment and risk perception on nurses and midwives in Bornova Health District in Turkey. Cancer Nurs 2006; 29:244-9. [PMID: 16783126 DOI: 10.1097/00002820-200605000-00013] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Risk perception is a significant component of awareness of breast cancer risks. It can be helpful to reduce deaths of breast cancer via increasing awareness risk level. This study aimed to discuss the level of perceived and calculated breast cancer risk and to provide data on the practice of breast self-examination and use of mammography among 215 nurses and midwives working in the 23 primary healthcare centers in Turkey. Participants were asked to assess their personal lifetime breast cancer risk by a 4-item Likert scale ("no risk," "usual," "moderate," and "strong" risk), which determined "perceived breast cancer risk." Gail model was used to assess the "calculated breast cancer risk," which was calculated by the tool provided by the National Cancer Institute, version 7. Perceived and calculated risk levels were compared. The relation between sociodemographic and risk factors with "perceived risk" was examined. In addition, the influence of perceived risk on breast cancer screening practice was also assessed. The level of perceived risk of nurses and midwives was higher than that of calculated risk. Considering the fact that participants were healthcare professionals, the use of breast self-examination and mammography practices as a preventive behavior by nurses and midwives was lower than expected. Implications are discussed with regard to breast cancer risk and preventive behavior.
Collapse
Affiliation(s)
- Esin Ceber
- Izmir Ataturk School of Health, Ege University, Izmir, Turkey.
| | | | | | | |
Collapse
|
18
|
Franco-Molina MA, Mendoza-Gamboa E, Miranda-Hernández D, Zapata-Benavides P, Castillo-León L, Isaza-Brando C, Tamez-Guerra RS, Rodríguez-Padilla C. In vitro effects of bovine dialyzable leukocyte extract (bDLE) in cancer cells. Cytotherapy 2006; 8:408-14. [PMID: 16923617 DOI: 10.1080/14653240600847266] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND Bovine dialyzable leukocyte extract (bDLE) is a dialyzate of a heterogeneous mixture of low molecular weight substances released from disintegrated blood leukocytes or lymphoid tissue obtained from homogenized bovine spleen. The purpose of this study was to determine if bDLE had cytotoxic effects and modulated apoptosis gene expression in breast cancer cells. METHODS The MCF-7, BT-474, MDA-MB-453, A-427, Calu-1, U937 and L5178Y cancer cell lines and PBMC human cells were treated with bDLE (0-0.66 U/mL) for 72 h. The bDLE effect on cell growth proliferation was evaluated by MTT assay, and the MCF-7 was evaluated by ethidium bromide-acridine orange staining; total DNA was evaluated for DNA fragmentation, and total RNA was isolated for p53, bag-1, c-myc, bim, bax, bcl-2 and bad mRNA expression. RESULTS The bDLE had dose-dependent cytotoxic effects and demonstrated an IC50 at a dosage of 0.06 U/mL (P<0.05). The bDLE did not affect the viability of normal human PBMC. The bDLE induced DNA fragmentation at doses of 0.06 and 0.13 U/mL in MCF-7 breast cancer cells. The bDLE induced cytotoxic effects and suppressed the p53, bag-1, c-myc, bax, bcl-2, and bad mRNA expression that influences apoptosis in MCF-7 breast cancer cells. Bim mRNA expression was not detected. DISCUSSION This may open up interesting prospects for the treatment of human breast cancer.
Collapse
Affiliation(s)
- M A Franco-Molina
- Departamento de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Schueller G, Kaindl E, Matzek WK, Semturs F, Schueller-Weidekamm C, Helbich TH. Image Quality of a Wet Laser Printer Versus a Paper Printer for Full-Field Digital Mammograms. AJR Am J Roentgenol 2006; 186:38-43. [PMID: 16357374 DOI: 10.2214/ajr.04.1583] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of our study was to compare the image quality of a wet laser printer with that of a paper printer for full-field digital mammography (FFDM). MATERIALS AND METHODS For both a wet laser printer and a paper printer connected to an FFDM system, image quality parameters were evaluated using a standardized printer test image (luminance density, dynamic range). The detectability of standardized objects on a phantom was also evaluated. Furthermore, 640 mammograms of 80 patients with different breast tissue composition patterns were imaged with both printers. Subjective image quality parameters (brightness, contrast, and detection of details of anatomic structures-that is, skin, subcutis, musculature, glandular tissue, and fat), the detectability of breast lesions (mass, calcifications), and the diagnostic performance according to the BI-RADS classification were evaluated. RESULTS Both the luminance density and the dynamic range were superior for the wet laser printer. More standardized objects were visible on the phantom imaged with the wet laser printer than with the paper printer (13/16 vs 11/16). Each subjective image quality parameter of the mammograms from the wet laser printer was rated superior to those of the paper printer. Significantly more breast lesions were detected on the wet laser printer images than on the paper printer images (masses, 13 vs 10; calcifications, 65 vs 48; p < 0.05). With the paper printer images, BI-RADS 4 and 5 categories were underestimated for 10 (43.5%) of 23 patients. CONCLUSION For FFDM, images obtained from a wet laser printer show superior objective and subjective image quality compared with a paper printer. As a consequence, the paper printer should not be used for FFDM.
Collapse
Affiliation(s)
- Gerd Schueller
- Department of Radiology, University Hospital Vienna and Medical University of Vienna, Austria, Waehringer Guertel 18-20/7F, A-1090 Vienna, Austria
| | | | | | | | | | | |
Collapse
|
20
|
Kirsner RS, Ma F, Fleming L, Trapido E, Duncan R, Federman DG, Wilkinson JD. The Effect of Medicare Health Care Systems on Women With Breast and Cervical Cancer. Obstet Gynecol 2005; 105:1381-8. [PMID: 15932833 DOI: 10.1097/01.aog.0000161326.15602.fb] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Two common health care delivery systems in the United States are fee-for-service and managed care systems, including health maintenance organizations (HMOs). Differences may exist in patient outcomes depending upon the health care delivery system in which they are enrolled. We evaluated possible differences in the stage at diagnosis for breast and cervical cancer between 2 Medicare health care delivery systems (ie, fee for service and HMO) over the period 1985-2001. METHODS We used a linkage of 2 national databases: the Medicare database from the Centers for Medicare and Medicaid Services and the National Cancer Institute's Surveillance, Epidemiology, and End Results program database to evaluate differences in stage at diagnosis between HMO and fee for service for breast and cervical cancer. RESULTS We studied 130,336 Medicare-aged women with breast cancer (83% Medicare fee for service) and 6,758 women with cervical cancer (87% Medicare fee for service). We found an earlier stage of diagnosis for HMO patients, which remained significant after adjusting for potential confounding variables. Women enrolled in HMOs with breast cancer were 17% more likely and those with cervical cancer 35% more likely to be diagnosed at an in situ stage of diagnosis than fee-for-service patients. It is of note that when women had other cancer diagnoses, no statistically significant differences were seen in stage at diagnosis for either cancer between fee-for-service and HMO patients. CONCLUSION Differences exist in stage at diagnosis between Medicare patients enrolled in HMOs compared with fee for service. This is likely due in part to use of or access to care.
Collapse
Affiliation(s)
- Robert S Kirsner
- Department of Dermatology and Cutaneous Surgery, Department of Epidemiology and Public Health, University of Miami School of Medicine, Miami, Florida 33125, USA.
| | | | | | | | | | | | | |
Collapse
|
21
|
Abstract
One out of four deaths in the USA is due to cancer. Identification of populations at risk of developing cancer is important as it provides opportunities for prevention and treatment of cancer. Biomarkers are measurable indicators of exposure effects and susceptibility or disease state, and are used to understand the mechanisms of cancer progression. In recent molecular epidemiology studies genomic, proteomic, and epigenomic markers have been utilized which exhibit high sensitivity and specificity for different tumor types and can be assayed in biofluids and other specimens collected by non-invasive technologies. The current challenges and future directions in the field are discussed in this article.
Collapse
Affiliation(s)
- M Verma
- Analytical Epidemiology Research Branch, Epidemiology and Genetics, Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD 20892, USA.
| |
Collapse
|
22
|
Abstract
Abstract
Breast cancer in men is a rare disease, accounting for ∼1% of all breast cancer cases. Although the epidemiologic literature regarding female breast cancer is extensive, relatively little is known about the etiology of male breast cancer (MBC). This review is intended to summarize the existing body of evidence on genetic and epidemiologic risk factors for breast cancer in men. Overall, the epidemiology of MBC presents similarities with the epidemiology of female breast cancer. Major genetic factors associated with an increased risk of breast cancer for men include BRCA2 mutations, which are believed to account for the majority of inherited breast cancer in men, Klinefelter syndrome, and a positive family history. Suspected genetic factors include AR gene mutations, CYP17 polymorphism, Cowden syndrome, and CHEK2. Epidemiologic risk factors for MBC include disorders relating to hormonal imbalances, such as obesity, testicular disorders (e.g., cryptorchidism, mumps orchitis, and orchiectomy), and radiation exposure. Suspected epidemiologic risk factors include prostate cancer,prostate cancer treatment, gynecomastia, occupational exposures (e.g., electromagnetic fields, polycyclic aromatic hydrocarbons, and high temperatures), dietary factors (e.g., meat intake and fruit and vegetable consumption), and alcohol intake.
Collapse
Affiliation(s)
- Joli R. Weiss
- 1Department of Epidemiology, Roswell Park Cancer Institute, Buffalo, New York and
| | - Kirsten B. Moysich
- 1Department of Epidemiology, Roswell Park Cancer Institute, Buffalo, New York and
| | - Helen Swede
- 2Connecticut Tumor Registry, Hartford, Connecticut
| |
Collapse
|
23
|
De Cicco C, Baio SM, Veronesi P, Trifirò G, Ciprian A, Vento A, Rososchansky J, Viale G, Paganelli G. Sentinel node biopsy in male breast cancer. Nucl Med Commun 2004; 25:139-43. [PMID: 15154702 DOI: 10.1097/00006231-200402000-00008] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Male breast cancer is a rare disease and axillary status is the most important prognostic indicator. Lymphoscintigraphy associated with gamma-probe guided surgery has been proved to reliably detect sentinel nodes in female patients with breast cancer. This study evaluates the feasibility of the surgical identification of sentinel node by using lymphoscintigraphy and a gamma-detecting probe in male patients, in order to select subjects who would be suitable for complete axillary lymphadenectomy. METHODS Colloid human albumin labelled with 99Tc was administered to 18 male patients with breast cancer and clinically negative axillary lymph nodes. Lymphoscintigraphy was performed the day before surgery. An intraoperative gamma-detecting probe was used to identify sentinel nodes during surgery. RESULTS Lymphoscintigraphy and biopsy of the sentinel node were successful in all cases. A total of 20 sentinel nodes were removed. Pathological examinations showed 11 infiltrating ductal carcinomas, two intraductal carcinomas and five intracystic papillary carcinomas. Six patients (33%) had positive sentinel node (micrometastases were found in three patients). These patients underwent axillary dissection; in five of them (83%) the sentinel node was the only positive node. Twelve patients (67%) showed negative sentinel nodes; in all of them no further surgical treatments were planned. CONCLUSIONS As in women, lymphoscintigraphy and sentinel node biopsy under the guidance of a gamma-detecting probe proved to be an easy method for the detection of sentinel nodes in male breast carcinoma. In male patients with early stage cancer, sentinel node biopsy might represent the standard surgical procedure in order to avoid unnecessary morbidity after surgery, preserving accurate staging of the disease in the axilla.
Collapse
Affiliation(s)
- Concetta De Cicco
- Nuclear Medicine Division, European Institute of Oncology, University of Milan, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Kruk J, Aboul-Enein HY. Occupational physical activity and the risk of breast cancer. CANCER DETECTION AND PREVENTION 2003; 27:187-92. [PMID: 12787725 DOI: 10.1016/s0361-090x(03)00032-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The association between occupational and the risk of breast cancer was analyzed using data from a case-control study of 257 women with breast cancer and 565 control women. Logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for occupations having light and medium activity compared with sedentary ones. After adjusted for potential confounders, women in sedentary occupations had a 29% higher risk, compared to those with the physically medium demanding jobs. For women at age > or =55 years higher occupational physical levels were associated with 53-60% reduction in the risk. There was a significant decreasing trend in the ORs from sedentary to medium work (P=0.001); while no association emerged in younger women. These findings demonstrate that the protective effect of higher levels activity in occupations on breast cancer appears to be confined to older women.
Collapse
Affiliation(s)
- Joanna Kruk
- Department of Ecology and Tourism, Faculty of Natural Sciences, University of Szczecin, Al. Piastów 40 b/6, Szczecin 71-065, Poland
| | | |
Collapse
|
25
|
Affiliation(s)
- Gregory J Tsongalis
- Department of Pathology and Laboratory Medicine, Hartford Hospital, Hartford, CT, USA.
| | | |
Collapse
|
26
|
Kurdyak PA, Gnam WH, Streiner DL. Antidepressants and the risk of breast cancer. CANADIAN JOURNAL OF PSYCHIATRY. REVUE CANADIENNE DE PSYCHIATRIE 2002; 47:966-70. [PMID: 12553133 DOI: 10.1177/070674370204701009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND A recent national newspaper article highlighted 2 published research papers that suggest an association between antidepressants and an increased risk of breast cancer. The authors of the 2 papers recommend switching or avoiding the antidepressants implicated in their studies. METHOD We critically review these papers and, based on our review, consider what clinical practices, if any, should be modified as a result of their findings. RESULTS Both articles are based upon case-control studies. In the first paper, the authors examine the relation between tricyclic antidepressants (TCAs) and an increased risk of breast cancer. The study upon which the paper is based has several design strengths, and the paper presents findings that have biological plausibility. However, the conclusions are weakened by the lack of accounting for potential confounding factors and multiple statistical comparisons. In the second paper, the authors combined survey and administrative data to examine the association between antidepressant use and breast cancer risk. The press article notwithstanding, the second paper does not find a significant association between specific antidepressants and an increased risk of breast cancer, after adjusting for potential confounders. There are significant methodological limitations to the research upon which the paper is based. CONCLUSIONS The finding of an association between TCA use and increased risk of breast cancer merits further testing using stronger research designs. However, because of the methodological concerns described, the 2 papers we review provide insufficient evidence to guide practitioners to change clinical practice.
Collapse
Affiliation(s)
- Paul A Kurdyak
- Department of Psychiatry, University of Toronto, Toronto, Ontario.
| | | | | |
Collapse
|
27
|
Ikezuki Y, Tsutsumi O, Takai Y, Kamei Y, Taketani Y. Determination of bisphenol A concentrations in human biological fluids reveals significant early prenatal exposure. Hum Reprod 2002; 17:2839-41. [PMID: 12407035 DOI: 10.1093/humrep/17.11.2839] [Citation(s) in RCA: 622] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND There is broad human exposure to bisphenol A (BPA), an estrogenic endocrine-disrupting chemical widely used for the production of plastic products. BPA is reported to affect preimplantation embryos or fetuses and alter their postnatal development at doses typically found in the environment. We measured contamination of BPA in various kinds of human biological fluids by a novel enzyme-linked immunosorbent assay. METHODS Blood samples were obtained from healthy premenopausal women, women with early and full-term pregnancy, and umbilical cord at full-term delivery. Ovarian follicular fluids obtained during IVF procedures and amniotic fluids obtained at mid-term and full-term pregnancy were also subject to BPA measurements. RESULTS BPA was present in serum and follicular fluid at approximately 1-2 ng/ml, as well as in fetal serum and full-term amniotic fluid, confirming passage through the placenta. Surprisingly, an approximately 5-fold higher concentration, 8.3 +/- 8.7 ng/ml, was revealed in amniotic fluid at 15-18 weeks gestation, compared with other fluids. CONCLUSION These results suggest accumulation of BPA in early fetuses and significant exposure during the prenatal period, which must be considered in evaluating the potential for human exposure to endocrine-disrupting chemicals.
Collapse
Affiliation(s)
- Yumiko Ikezuki
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | | | | | | | | |
Collapse
|
28
|
Women's health literaturewatch. JOURNAL OF WOMEN'S HEALTH & GENDER-BASED MEDICINE 2002; 11:89-93. [PMID: 11860729 DOI: 10.1089/152460902753473507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|