Abstract:
:It has been proposed that combination of indole-3-acetic acid (IAA) and horseradish peroxidase (HRP) could be useful as the basis for targeted cancer therapy involving antibody-, polymer-, or gene-directed approaches. By circulating IAA in human body, the cells labeled with HRP could be selectively killed since cytotoxic radical species are produced by IAA-HRP reaction. To enable the finely geared controls in selective killing of the cells, the author propose the use of a fungal alkaloid, hypaphorine known to act against IAA in growing plants, in combination with IAA. Previously, the author and colleagues have shown that hypaphorine competitively inhibits the IAA-dependent superoxide generation by HRP. Since hypaphorine is structurally similar to IAA, the effects of hypaphorine against IAA may be due to competitive binding to the IAA-binding domain on HRP. Our in vitro studies on hypaphorine-based control of the IAA-HRP reaction yielding superoxide, must be re-examined in in vivo systems prior to clinical examination.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Kawano Tdoi
10.1016/s0306-9877(03)00012-4keywords:
subject
Has Abstractpub_date
2003-05-01 00:00:00pages
664-6issue
5eissn
0306-9877issn
1532-2777pii
S0306987703000124journal_volume
60pub_type
杂志文章abstract::It has been speculated that the rise of the adaptive immune system in jawed vertebrates some 400 million years ago gave them a superior protection to detect and defend against pathogens that became more elusive and/or virulent to the host that had only innate immune system. First, this line of thought implies that ada...
journal_title:Medical hypotheses
pub_type: 杂志文章,评审
doi:10.1016/j.mehy.2010.02.031
更新日期:2010-08-01 00:00:00
abstract::Preliminary reports have suggested that chronic, intermittent electrical stimulation of the cervical vagus nerve (VNS) is an effective treatment for patients who suffered from medically refractory epilepsy. But the traditional VNS is an invasive and implantable procedure that will bring some injury to the patient. Ana...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2011.04.021
更新日期:2011-08-01 00:00:00
abstract::Vitamins are indispensable nutrients for metabolism. Adequate vitamin intake plays vital role in physiological processes including embryonic development, cellular and immunity proliferation and differentiation, DNA synthesis and oxidative response. In contrast, insufficient vitamin levels usually lead to a large numbe...
journal_title:Medical hypotheses
pub_type: 杂志文章,评审
doi:10.1016/j.mehy.2019.109448
更新日期:2020-02-01 00:00:00
abstract::The per review system for the assessment of research proposals is widely respected by working scientists. Nevertheless two problems associated with the operation of this system by the US National Institutes of Health are identified. First the scientist has no control over which committee will review an application and...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/s0306-9877(76)80019-9
更新日期:1976-01-01 00:00:00
abstract::In addition to classical metastatic pathways, recently gastric cancer was described having an alternative route called "endoluminal exfoliation". Provisional analyses demonstrated, in fact, this kind of shedding is associated with several clinico-pathological features indicative of aggressive behavior and resulted to ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2018.02.023
更新日期:2018-05-01 00:00:00
abstract::Narcolepsy is a disorder characterized by the sudden urge to sleep. The biochemical etiology of this disorder is believed to be due to dopamine abnormalities. Since the precursor of dopamine is L-tyrosine, the administration of this amino acid may prove beneficial in the treatment of narcolepsy. Preliminary research a...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(90)90141-z
更新日期:1990-12-01 00:00:00
abstract::Several hypotheses have been developed to interpret the progression of tubulointerstitial fibrosis (TF), including senescence, epithelial-mesenchymal transition, inflammation, chronic hypoxia, and reactive oxygen species. All of these hypotheses are based on persistent cell injury and localized cell death. Proliferati...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2014.01.014
更新日期:2014-06-01 00:00:00
abstract::Gender differences in stem cell population have recently been identified. Blood and tissue samples from women showed consistent elevation of hematopoietic stem cell populations, mesenchymal stem cell populations and endothelial progenitor cells compared to men of similar ages. We and others have shown an increase in h...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2012.06.029
更新日期:2012-10-01 00:00:00
abstract::Many embryonic genes may be sets of repeated genes. Processes of differentiation where the quantity of gene activity changes during embryogenesis may not reflect the transcription rate per se but instead be a result of the state of expression of constitutive repeated genes. Such repeated genes (in fact or theory) is d...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(91)90220-s
更新日期:1991-03-01 00:00:00
abstract::The hypothesis proposed in this article is that a haemodynamic mechanism may cause amyotrophic lateral sclerosis (ALS). The hypothesis is synthesized from three separate streams of medical research: (1) multiple sclerosis (MS) research; (2) ALS research; (3) atherosclerosis research. Each research stream was reviewed ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2010.03.017
更新日期:2010-10-01 00:00:00
abstract::Homocysteinemia, first identified as a genetic disease in children in the 1960s, is associated with severe widespread atherosclerosis which causes death (in untreated cases) before the age of 10 years. Elevated blood homocysteine is now recognized as a risk factor for heart disease in the general population. The mecha...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.2000.1209
更新日期:2001-02-01 00:00:00
abstract::Recent studies confirm that dietary methionine restriction increases both mean and maximal lifespan in rats and mice, achieving "aging retardant" effects very similar to those of caloric restriction, including a suppression of mitochondrial superoxide generation. Although voluntary caloric restriction is never likely ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2008.07.044
更新日期:2009-02-01 00:00:00
abstract::The first conjugate vaccine was approved for use in the US in 1988 to protect infants and young children against the capsular bacteria Haemophilus influenzae type b (Hib). Since its introduction in the US, this vaccine has been approved in most developed countries, including Denmark and Israel where the vaccine was ad...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2011.08.019
更新日期:2011-12-01 00:00:00
abstract::Foster found areas with the highest incidence of SIDS in USA in 1983-1984 coincided with the highest areas recorded with the highest incidence of goitre in First World War troops (1). Reid compared the two populations described as having the highest incidence of SIDS worldwide. Both were selenium deficient areas (King...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(94)90124-4
更新日期:1994-04-01 00:00:00
abstract::Despite aggressive intervention, patients who survive an out-of-hospital cardiac arrest (OHCA) generally have very poor prognoses, with nationwide survival rates of approximately 10-20%. Approximately 90% of survivors will have moderate to severe neurological injury ranging from moderate cognitive impairment to brain ...
journal_title:Medical hypotheses
pub_type: 杂志文章,评审
doi:10.1016/j.mehy.2017.06.016
更新日期:2017-08-01 00:00:00
abstract::Given the reports made about dogs detecting cancer on the basis of odour, our hypothesis is that the volatile organic compounds produced by tumours, and detected by dogs, are products of MHC genes. Two lines of evidences support this hypothesis: (1) human body odour is genetically determined by MHC. These antigen mole...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2005.08.027
更新日期:2006-01-01 00:00:00
abstract::Apoptosis is defined as the process of ''programmed cell death'' (PCD), during which many cells simultaneously die from within along a very orderly pattern. PCD is as intrinsic for cells as mitosis and is involved in both degenerative and developmental processes of organs and organisms. The pattern of apoptotic cell d...
journal_title:Medical hypotheses
pub_type: 社论
doi:10.1016/j.mehy.2007.07.006
更新日期:2008-01-01 00:00:00
abstract::The disturbances of the 11p15.5 chromosomal region are associated with Beckwith-Wiedemann syndrome, Russell-Silver syndrome, Wilms tumor, IMAGe syndrome, and idiopathic hemihyperplasia. The aim of this research was to examine the hypothesis that 11p15.5 initially became unstable in the European population about 200 ye...
journal_title:Medical hypotheses
pub_type: 历史文章,杂志文章
doi:10.1016/j.mehy.2018.09.008
更新日期:2018-12-01 00:00:00
abstract::Gastroesophageal reflux (GER) and asthma have been linked, but the true nature of this relationship is incompletely understood. Most of the literature examining this association has implicated GER as the factor contributing to asthma. GER has also been linked to conditions of the upper airway like sinusitis and obstru...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2009.12.030
更新日期:2010-06-01 00:00:00
abstract::Following allegations that Hepatitis B vaccination causes or triggers multiple sclerosis (MS), several epidemiological studies have been conducted to evaluate the association between MS and vaccination. In one study conducted in the US, a significant protective effect on the development of MS was observed for tetanus ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2005.05.009
更新日期:2005-01-01 00:00:00
abstract::The hyponatremia found in multiple myeloma and which is associated with a reduced anion gap (ag) is considered to be pseudohyponatremia due to the displacement of water by the high globulin content in the blood. Serum proteins participate in acid-base balance. Stewart and other authors in their approach to acid-base i...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2006.02.051
更新日期:2006-01-01 00:00:00
abstract::A new approach to antiviral therapy is proposed, taking advantage of the recently investigated innervation of immune tissues by the sympathetic nervous system, which establishes a functional connection between the nervous and the immune system, where the sympathetic nervous system exerts a varying tonic inhibitory inf...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(95)90097-7
更新日期:1995-10-01 00:00:00
abstract::Pulmonary hypertension (PH) is defined as elevated mean pulmonary artery pressure secondary to e.g. congenital heart disease and chronic obstructive pulmonary disease. It elevates right ventricular afterload that eventually leads to cor pulmonale and right heart failure. Experimental research has shown that cardioprot...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2020.109572
更新日期:2020-04-01 00:00:00
abstract::This article reviews the biochemical and physiological observations underpinning the synergism between ghrelin and ghrelin agonists with exercise, especially progressive resistance training that has been shown to increase muscle mass. The synergy of ghrelin agonists and physical exercise could be beneficial in conditi...
journal_title:Medical hypotheses
pub_type: 杂志文章,评审
doi:10.1016/j.mehy.2015.09.008
更新日期:2015-12-01 00:00:00
abstract::Although once considered by biologists almost exclusively for their toxicity, reactive oxygen (ROS) and nitrogen (RNS) species produced within normal cells under baseline physiological conditions are now appreciated as redox regulators of a wide range of protein functions. Two families of enzymes, the NADPH oxidases (...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2019.109249
更新日期:2019-08-01 00:00:00
abstract::A high incidence of sudden unexplained nocturnal deaths has been reported among young Asian males. These deaths are known as Pokkuri in Japan, Bangungut in the Philippines and Sudden Unexplained Nocturnal Death in the United States. Post mortem analysis has demonstrated cardiac conduction defects in many of the victim...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(88)90071-0
更新日期:1988-06-01 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::In idiopathic scoliosis the convexity of the thoracic curve of the vertebral column is most commonly directed toward the right side. The right lung is normally larger than the left lung. This asymmetry acting through chest wall movement is hypothesized to exert rotatory forces on the vertebral column. The result, in p...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(89)90074-1
更新日期:1989-04-01 00:00:00
abstract::Reversing chronic conditions remains an elusive goal of medicine. The modern medical paradigm based on blocking overactive pathways or augmenting deficient pathways offers symptomatic benefit, but tolerance to therapy can develop and treatment cessation can produce rebound symptoms due to compensatory mechanisms. We p...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2004.09.007
更新日期:2005-01-01 00:00:00
abstract::Cancer is caused by a combination of factors, genetic, epigenetics and environmental. Among the latter, environmental pollutants absorbed by contact, inhalation, or ingestion are major proven or suspected culprits. Depleted uranium (DU) is one of them directly pertinent to the military and civilians working in militar...
journal_title:Medical hypotheses
pub_type: 信件
doi:10.1016/j.mehy.2019.01.018
更新日期:2019-03-01 00:00:00