1
|
Ma Y, Zhu Y, Hong D, Zhao H, Li L. Association between tea drinking and disability levels in older Chinese adults: a longitudinal analysis. Front Nutr 2023; 10:1233664. [PMID: 38024372 PMCID: PMC10644393 DOI: 10.3389/fnut.2023.1233664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023] Open
Abstract
Objective As the global population ages, disability among the elderly presents unprecedented challenges for healthcare systems. However, limited research has examined whether dietary interventions like tea consumption may alleviate and prevent disability in older adults. As an important dietary therapy, the health benefits of tea drinking have gained recognition across research disciplines. Therefore, this study aimed to investigate the association between tea drinking habits and disability levels in the elderly Chinese population. Methods Leveraging data from the 2008 to 2018 waves of the Chinese Longitudinal Healthy Longevity Survey, we disaggregated tea drinking frequency and activities of daily living (ADL) measures and deployed fixed-effect ordered logit models to examine the tea-disability association for the first time. We statistically adjusted for potential confounders and conducted stratified analyses to assess heterogeneity across subpopulations. Results Multivariable fixed-effect ordered logistic regression suggested tea drinking has protective effects against ADL disability. However, only daily tea drinking was associated with lower risks of basic activities of daily living (BADL) disability [odds ratio (OR) = 0.61; 95% confidence interval (CI), 0.41-0.92] and lower levels of instrumental activities of daily living (IADL) disability (OR = 0.78; 95% CI, 0.64-0.95). Stratified analyses indicated heterogeneous effects across age and income groups. Daily tea drinking protected against BADL (OR = 0.26 and OR = 0.28) and IADL disability (OR = 0.48 and OR = 0.45) for adults over 83 years old and high-income households, respectively. Conclusion We found that drinking tea almost daily was protective against disability in elderly people, warranting further research into optimal dosages. Future studies should utilize more rigorous causal inference methods and control for confounders.
Collapse
Affiliation(s)
- Yinghui Ma
- School of Economics and Management, Jiangsu University of Science and Technology, Zhenjiang, China
- School of Economics and Management, Beijing Forestry University, Beijing, China
| | - Yuying Zhu
- School of Economics and Management, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Dandan Hong
- School of Economics and Management, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Haiyue Zhao
- School of Economics and Management, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Lei Li
- College of Economics and Management, Zhejiang A & F University, Hangzhou, China
- Research Academy for Rural Revitalization of Zhejiang, Zhejiang A & F University, Hangzhou, China
| |
Collapse
|
2
|
Zhu L, Smith PP, Boyes SG. pH-responsive polymers for imaging acidic biological environments in tumors. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/polb.23302] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Liping Zhu
- Department of Chemistry and Geochemistry; Colorado School of Mines, Golden; Colorado 80401
| | - Patrizia P. Smith
- Department of Chemistry and Geochemistry; Colorado School of Mines, Golden; Colorado 80401
| | - Stephen G. Boyes
- Department of Chemistry and Geochemistry; Colorado School of Mines, Golden; Colorado 80401
| |
Collapse
|
3
|
Das SK, Ten Haken RK. Functional and molecular image guidance in radiotherapy treatment planning optimization. Semin Radiat Oncol 2011; 21:111-8. [PMID: 21356479 DOI: 10.1016/j.semradonc.2010.10.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Functional and molecular imaging techniques are increasingly being developed and used to quantitatively map the spatial distribution of parameters, such as metabolism, proliferation, hypoxia, perfusion, and ventilation, onto anatomically imaged normal organs and tumor. In radiotherapy optimization, these imaging modalities offer the promise of increased dose sparing to high-functioning subregions of normal organs or dose escalation to selected subregions of the tumor as well as the potential to adapt radiotherapy to functional changes that occur during the course of treatment. The practical use of functional/molecular imaging in radiotherapy optimization must take into cautious consideration several factors whose influences are still not clearly quantified or well understood including patient positioning differences between the planning computed tomography and functional/molecular imaging sessions, image reconstruction parameters and techniques, image registration, target/normal organ functional segmentation, the relationship governing the dose escalation/sparing warranted by the functional/molecular image intensity map, and radiotherapy-induced changes in the image intensity map over the course of treatment. The clinical benefit of functional/molecular image guidance in the form of improved local control or decreased normal organ toxicity has yet to be shown and awaits prospective clinical trials addressing this issue.
Collapse
Affiliation(s)
- Shiva K Das
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | | |
Collapse
|
4
|
The role of PET/CT in the management of head and neck squamous cell carcinoma. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2011. [DOI: 10.1016/j.ejrnm.2011.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
|
5
|
Bayouth JE, Casavant TL, Graham MM, Sonka M, Muruganandham M, Buatti JM. Image-based biomarkers in clinical practice. Semin Radiat Oncol 2011; 21:157-66. [PMID: 21356483 PMCID: PMC4270476 DOI: 10.1016/j.semradonc.2010.11.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The growth of functional and metabolically informative imaging is eclipsing anatomic imaging alone in clinical practice. The recognition that magnetic resonance (MR) and positron emission tomography (PET)-based treatment planning and response assessment are essential components of clinical practice and furthermore offer the potential of quantitative analysis being important. Extracting the greatest benefit from these imaging techniques will require refining the best combinations of multimodality imaging through well-designed clinical trials that use robust image-analysis tools and require substantial computer based infrastructure. Through these changes and enhancements, image-based biomarkers will enhance clinical decision making and accelerate the progress that is made through clinical trial research.
Collapse
Affiliation(s)
- John E Bayouth
- Department of Radiation Oncology, University of Iowa, Iowa City, IA 52242, USA.
| | | | | | | | | | | |
Collapse
|
6
|
Sandhu GS, Solorio L, Broome AM, Salem N, Kolthammer J, Shah T, Flask C, Duerk JL. Whole animal imaging. WILEY INTERDISCIPLINARY REVIEWS-SYSTEMS BIOLOGY AND MEDICINE 2010; 2:398-421. [PMID: 20836038 DOI: 10.1002/wsbm.71] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Translational research plays a vital role in understanding the underlying pathophysiology of human diseases, and hence development of new diagnostic and therapeutic options for their management. After creating an animal disease model, pathophysiologic changes and effects of a therapeutic intervention on them are often evaluated on the animals using immunohistologic or imaging techniques. In contrast to the immunohistologic techniques, the imaging techniques are noninvasive and hence can be used to investigate the whole animal, oftentimes in a single exam which provides opportunities to perform longitudinal studies and dynamic imaging of the same subject, and hence minimizes the experimental variability, requirement for the number of animals, and the time to perform a given experiment. Whole animal imaging can be performed by a number of techniques including x-ray computed tomography, magnetic resonance imaging, ultrasound imaging, positron emission tomography, single photon emission computed tomography, fluorescence imaging, and bioluminescence imaging, among others. Individual imaging techniques provide different kinds of information regarding the structure, metabolism, and physiology of the animal. Each technique has its own strengths and weaknesses, and none serves every purpose of image acquisition from all regions of an animal. In this review, a broad overview of basic principles, available contrast mechanisms, applications, challenges, and future prospects of many imaging techniques employed for whole animal imaging is provided. Our main goal is to briefly describe the current state of art to researchers and advanced students with a strong background in the field of animal research.
Collapse
Affiliation(s)
- Gurpreet Singh Sandhu
- Department of Biomedical Engineering, Case Center of Imaging Research, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Luis Solorio
- Department of Biomedical Engineering, Case Center of Imaging Research, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Ann-Marie Broome
- Department of Biomedical Engineering, Case Center of Imaging Research, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Nicolas Salem
- Department of Biomedical Engineering, Case Center of Imaging Research, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Jeff Kolthammer
- Department of Biomedical Engineering, Case Center of Imaging Research, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Tejas Shah
- Department of Biomedical Engineering, Case Center of Imaging Research, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Chris Flask
- Department of Biomedical Engineering, Case Center of Imaging Research, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Jeffrey L Duerk
- Department of Biomedical Engineering, Case Center of Imaging Research, Case Western Reserve University, Cleveland, OH 44106, USA
| |
Collapse
|
7
|
Papathanassiou D, Bruna-Muraille C, Liehn JC, Nguyen TD, Curé H. Positron Emission Tomography in oncology: Present and future of PET and PET/CT. Crit Rev Oncol Hematol 2009; 72:239-54. [DOI: 10.1016/j.critrevonc.2008.10.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Revised: 09/30/2008] [Accepted: 10/14/2008] [Indexed: 01/01/2023] Open
|
8
|
South CP, Partridge M, Evans PM. A theoretical framework for prescribing radiotherapy dose distributions using patient-specific biological information. Med Phys 2008; 35:4599-611. [PMID: 18975706 DOI: 10.1118/1.2975229] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
We present a formalism for using functional imaging both to derive patient-specific radiobiological properties and consequently to prescribe optimal nonuniform radiotherapy dose distributions. The ability to quantitatively assess the response to an initial course of radiotherapy would allow the derivation of radiobiological parameters for individual patients. Both an iterative optimization and an analytical approach to this problem were investigated and illustrated by application to the linear-quadratic model of cell killing using simulated parametric data for a modeled tumor. Potential gains in local control were assessed by comparing uniform dose distributions with optimized dose distributions of equal integral dose. The effect on local prescribed dose of variations in effective radiosensitivity, tumor burden, and proliferation rate was investigated, with results suggesting that dose variations would be significant but clinically achievable. The sensitivity of derived parameters to image noise and the effect of varying the initial fractionation and imaging schedule were assessed. The analytical approach proved remarkably robust, with 10% image noise resulting in dose errors of approximately 1% for a clinically relevant set of parameters. Potential benefits were demonstrated by using this formalism to prescribe nonuniform dose distributions for model tumors using a range of literature-derived parameters. The redistribution of dose improved tumor control probability by factors between 1.03 and 4.27 for a range of model tumors.
Collapse
Affiliation(s)
- C P South
- Joint Department of Physics, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, SM2 5PT, UK.
| | | | | |
Collapse
|
9
|
Dietl B, Marienhagen J, Kühnel T, Schreyer A, Kölbl O. The impact of FDG-PET/CT on the management of head and neck tumours: The radiotherapist’s perspective. Oral Oncol 2008; 44:504-8. [DOI: 10.1016/j.oraloncology.2007.06.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2007] [Revised: 06/26/2007] [Accepted: 06/30/2007] [Indexed: 01/08/2023]
|
10
|
McKeown SR, Cowen RL, Williams KJ. Bioreductive drugs: from concept to clinic. Clin Oncol (R Coll Radiol) 2007; 19:427-42. [PMID: 17482438 DOI: 10.1016/j.clon.2007.03.006] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Revised: 02/20/2007] [Accepted: 03/09/2007] [Indexed: 11/19/2022]
Abstract
One of the key issues for radiobiologists is the importance of hypoxia to the radiotherapy response. This review addresses the reasons for this and primarily focuses on one aspect, the development of bioreductive drugs that are specifically designed to target hypoxic tumour cells. Four classes of compound have been developed since this concept was first proposed: quinones, nitroaromatics, aliphatic and heteroaromatic N-oxides. All share two characteristics: (1) they require hypoxia for activation and (2) this activation is dependent on the presence of specific reductases. The most effective compounds have shown the ability to enhance the anti-tumour efficacy of agents that kill better-oxygenated cells, i.e. radiation and standard cytotoxic chemotherapy agents such as cisplatin and cyclophosphamide. Tirapazamine (TPZ) is the most widely studied of the lead compounds. After successful pre-clinical in vivo combination studies it entered clinical trial; over 20 trials have now been reported. Although TPZ has enhanced some standard regimens, the results are variable and in some combinations toxicity was enhanced. Banoxantrone (AQ4N) is another agent that is showing promise in early phase I/II clinical trials; the drug is well tolerated, is known to locate in the tumour and can be given in high doses without major toxicities. Mitomycin C (MMC), which shows some bioreductive activation in vitro, has been tested in combination trials. However, it is difficult to assign the enhancement of its effects to targeting of the hypoxic cells because of the significant level of its hypoxia-independent toxicity. More specific analogues of MMC, e.g. porfiromycin and apaziquone (EO9), have had variable success in the clinic. Other new drugs that have good pre-clinical profiles are PR 104 and NLCQ-1; data on their clinical safety/efficacy are not yet available. This paper reviews the pre-clinical data and discusses the clinical studies that have been reported.
Collapse
Affiliation(s)
- S R McKeown
- Institute of Biomedical Sciences, University of Ulster, Coleraine, Northern Ireland BT52 1SA, UK.
| | | | | |
Collapse
|