Abstract：
:Radiotherapy (RT) has been established to improve both local control as well as overall survival rates in breast cancer. However, RT especially in left-sided breast cancer also irradiates a portion of the heart. Radiation associated toxicity to the heart assumes significance because of improval in survival of breast cancer patients. A circadian pattern has been reported in the myocardial oxygen demand and myocardial ischaemia with the cardiac tissue being more susceptible to injury between 6 am and noon. Radiation damages blood vessels of all sizes causing an increase in capillary wall permeability and dilatation of vessels leading to the characteristic radiation erythema followed by an inflammatory cell infiltrate. Coronary artery spasm may be the reason behind some cases of sudden death occurring in patients after radiation therapy. Endothelial behaviour also has a circadian variation and vasodilation is significantly attenuated in the morning. Critical coronary artery disease occurs 10-15 years after radiotherapy. Radiation in the morning hours may be one of the associated risk factor. The application of chrono-therapeutics with radiation therapy in carcinoma breast and in other chest wall irradiation, could possibly decrease the radiation associated cardiac toxicity.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Gupta D,Shukla P,Munshi A,Aggarwal JPdoi
10.1016/j.mehy.2011.12.009subject
Has Abstractpub_date
2012-03-01 00:00:00pages
353-5issue
3eissn
0306-9877issn
1532-2777pii
S0306-9877(11)00624-4journal_volume
78pub_type
杂志文章abstract：:Narcolepsy type 1 is a lifelong sleep disorder characterized by the loss of hypocretin-producing neurons in the brain. Environmental agents, including influenza, neurotoxic metals, and combustion smoke, have been implicated in the pathogenesis, especially in carriers of the human leukocyte antigen class II DQB1*06:02 ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109294
更新日期：2019-10-01 00:00:00
abstract：:Down-regulation of hormonal effects is in the presented simulation related to the number of functional receptors and quantity of available hormonal stimulation. The former is in the model substituted with the quantity of stimulation able to produce a full down-regulation (Hs100) of target cells. The halftime (t1/2) of...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(96)90239-x
更新日期：1996-03-01 00:00:00
abstract：:Vagus nerve stimulation (VNS) and electroacupuncture (EA) at specific acupoints have both shown promising anticonvulsant effects in intractable epilepsy patients. The differences between these therapies are target selection and stimulation parameter modulation. It has been demonstrated that EA of the extremities resul...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.10.005
更新日期：2013-12-01 00:00:00
abstract：:The rise of anatomical realism in sculpture with the Classical Greeks puzzles art historians. Recently, it has been discovered that the motor cortex perceives motor actions. I argue that Classical artists discovered a new aesthetic based on using art to stimulate not just, as previously, the visual cortex, but also th...
journal_title：Medical hypotheses
pub_type： 历史文章,杂志文章
doi：10.1016/s0306-9877(98)90257-2
更新日期：1998-07-01 00:00:00
abstract：:This article reviews the significance of changes in the level of cerebrospinal fluid acetylcholinesterase or cholinesterase in patients with Alzheimer's disease or other dementias. Evidence has shown that the methodology of assaying cerebrospinal fluid acetylcholinesterase or cholinesterase is reliable and the activit...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(96)90216-9
更新日期：1996-11-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.01.002
更新日期：2013-04-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2012.01.038
更新日期：2012-05-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(87)90175-7
更新日期：1987-05-01 00:00:00
abstract：HYPOTHESIS:The delayed lung damage after SARS-CoV-2 infection may be caused by an autoimmune response to ACE2 induced by forced presentation of the ACE2 protein in a complex with CoV Spike in Fc Receptor positive Antigen Presenting Cells in the lung. The likelihood that this hypothesis is valid is low, but it is easily...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.110043
更新日期：2020-11-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2017.04.013
更新日期：2017-06-01 00:00:00
abstract：:Organogenesis is the result of cell allocation followed by cell differentiation, and the processes involved are still to be elucidated. Present-day teaching suggests that the cytoplasmic membrane, the extracellular matrix and the cytoskeleton, in combination, are responsible, but the literature also suggests that othe...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(96)90249-2
更新日期：1996-03-01 00:00:00
abstract：:Ampligen, a mismatched double stranded RNA, is hypothesized to be an ideal base therapy for HIV disease to which other agents, such as the nucleoside analogue, AZT, can be advantageously added. The unique properties of Ampligen which support this hypothesis include activation of immune cells, inhibition of virus repli...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(92)90002-t
更新日期：1992-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(03)00029-x
更新日期：2003-06-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.01.015
更新日期：2013-05-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2012.06.022
更新日期：2012-10-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.11.025
更新日期：2007-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2014.04.016
更新日期：2014-07-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.11.044
更新日期：2007-01-01 00:00:00
abstract：:Positive cancer patient outcomes, including increased time to recurrent events, have been associated with increased counts and function of natural killer (NK) cells. NK cell counts and function are elevated following acute exercise, and the generally accepted mechanism of increased recruitment suggests that binding of...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2017.10.015
更新日期：2017-11-01 00:00:00
abstract：:Alpha-fetoprotein (AFP) serum levels in man have long been utilized as a tumor marker and as a birth defect screening agent in the clinical laboratory. Although the physiological role of AFP has remained obscure, the stereotypic carrier/transport function of a fetal counterpart to albumin has been attributed to this o...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2001.1445
更新日期：2002-06-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/j.mehy.2013.05.031
更新日期：2013-11-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.08.048
更新日期：2007-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2014.03.011
更新日期：2014-06-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/j.mehy.2007.10.016
更新日期：2008-01-01 00:00:00
abstract：:Recent articles about the roles and relationships of tissue inhibitor of metalloproteinase-1 and transforming growth factor-beta 1 in various types of normal tissues and malignancies give rise to the question: 'Is there a relationship between them with regard to malignant melanoma progression?' In the light of many re...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2001.1270
更新日期：2001-08-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.12.061
更新日期：2007-01-01 00:00:00
abstract：:Nitrosamines have been identified in vaginal secretions of women with trichomoniasis. Both nitrites and amines the elements for nitrosamine synthesis are produced by the abnormal-predominantly anaerobic-vaginal flora of patients with bacterial vaginosis/trichomoniasis. The final formation of nitrosamines could also de...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(84)90159-2
更新日期：1984-12-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(81)90017-7
更新日期：1981-01-01 00:00:00
abstract：:Recent investigations on protease inhibitors in articular cartilage have provided new insights into the possible initial lesions of osteoarthrosis. A hypothesis has been formulated based upon an impaired ability of chondrocytes to synthesize protease inhibitors, which leads to loss of matrix integrity and vascular inv...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(79)90041-0
更新日期：1979-07-01 00:00:00
abstract：:Obesity is a major risk-factor for the development of insulin resistance, type 2 diabetes, and cardiovascular disease. Circulating molecules associated with obesity, such as saturated fatty acids and cholesterol crystals, stimulate the innate immune system to incite a chronic inflammatory state. Studies in mouse model...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2016.04.039
更新日期：2016-07-01 00:00:00
