Abstract：
:Cancer cells proliferate and metastasize against the body's defense mechanisms due to their ability to change in response to challenges, both from the body's internal defenses as well as those from external sources, such as radiation and chemotherapy. This ability of tumor cell populations to change and grow in response to these stresses as well as to hold populations of cells with diverse abilities has been termed 'tumor cell heterogeneity'. Tumor cell heterogeneity is thought to arise in cancer cell populations as a result of genetic instability, an undefined process by which the genetic material of the cell is rendered more labile and more likely to undergo changes in structure, conformation, and function. DNA is structurally and functionally organized by the nuclear matrix, the dynamic RNA-protein skeleton of the nucleus. We provide here a proposal that provides a framework for understanding genetic instability in terms of an unstable nuclear matrix.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Pienta KJ,Ward WSdoi
10.1016/0306-9877(94)90035-3subject
Has Abstractpub_date
1994-01-01 00:00:00pages
45-52issue
1eissn
0306-9877issn
1532-2777pii
0306-9877(94)90035-3journal_volume
42pub_type
杂志文章abstract：:In this paper it is proposed to extend the classical models of sleepiness in two ways. Firstly, the role of a wake drive, besides a sleep drive, in determining sleepiness is emphasised. Although this has already been suggested in literature and convincing arguments can be found, it is not generally accepted. Secondly,...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(02)00444-9
更新日期：2003-04-01 00:00:00
abstract：:Obstructive sleep apnea (OSA) is a common and underdiagnosed medical disorder. OSA is associated with the symptoms of excessive daytime sleepiness (EDS). These patients typically follow a sedentary lifestyle, and sedentary behavior is related to impaired fluid dynamics in the lower body, particularly the legs. In a su...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2012.11.007
更新日期：2013-02-01 00:00:00
abstract：:Lymphocytes of the CD8 phenotype play an important role in controlling viral burden in HIV-1 infection. Cytotoxic CD8+ T lymphocytes (CTL) can kill HIV-infected cells and in addition, are able to secrete a soluble factor that inhibits HIV replication. In most cases, HIV-infected individuals experience an unexplained C...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(94)90093-0
更新日期：1994-03-01 00:00:00
abstract：:Cannabis use has often been associated with various forms of psychosis. Today it is well established that everyone produces marijuana-like compounds known as endocannabinoids. The endocannabinoid system is a homeostatic regulator of all body systems including the nervous system. As a result, imbalances in the endocann...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2008.08.025
更新日期：2009-02-01 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：:Breast cancer associated with pregnancy is defined as the one in which the diagnosis is made in a pregnancy or within one year of delivery. Breast cancer is the second most common malignancy during pregnancy and it is generally considered to have a worse prognosis than the one that is not associated with pregnancy. Th...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.05.072
更新日期：2007-01-01 00:00:00
abstract：:The terminology relating to 'psychological stress' is so confused and ambiguous that research in this field - and application of its results - must surely be hampered. Relevant words with conflicting usages and scientific definitions include 'stress' itself, 'stressor', 'strain', 'challenge', 'demand', 'threat', 'reso...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.10.043
更新日期：2010-04-01 00:00:00
abstract：:This paper discusses a mechanism for converting heterochromatin into the more relaxed state of euchromatin. Actuation of such state conversion stems from disassembly of internal vesicles that are incapable of surviving when trapped within the inner chamber of mammalian nuclei. ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(02)00233-5
更新日期：2002-11-01 00:00:00
abstract：:Intra-peritoneal adhesions ensuing from surgery or infection may lead to chronic pelvic pain, bowel obstruction, infertility and additional invasive surgery to resolve adhesion-related complications. As a result adhesions are a major clinical, social and economic concern. The cumulative year-on-year direct costs of ad...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2010.11.020
更新日期：2011-03-01 00:00:00
abstract：:Despite all improvements in transplant medicine, renal transplant recipients have a high risk for cardiovascular mortality. A high prevalence of cardiovascular complications in renal transplant recipients (RTR) is explained by cardiovascular risk factors present before transplantation, in addition to the development o...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.10.030
更新日期：2014-01-01 00:00:00
abstract：BACKGROUND:In smoking cessation trials, placebo response rates are reported to be rather low, and they are lowest when compared to the placebo response rates of treatment of other addictions. We hypothesized that high placebo response rates in trials outside of cessation treatment may predict low participation of smoke...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2014.06.012
更新日期：2014-09-01 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：:An unconventional interaction between a patient and parasites was recently reported, in which parasitic cells invaded host's tissues, establishing several tumors. This finding raises various intriguing hypotheses on unpredicted forms of interplay between a patient and infecting parasites. Here we present four unusual ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2016.06.012
更新日期：2016-09-01 00:00:00
abstract：:MS risk is associated with low vitamin D status prior to disease, and Epstein Barr virus (EBV) infection seems to be a prerequisite for MS. EBV could activate autoreactive T cells by several mechanisms, but it is not clear why this leads to MS. Only a small proportion of those infected with EBV develops MS, whereas au...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2007.04.030
更新日期：2008-01-01 00:00:00
abstract：:Late luteal phase dysphoric disorder is described as a classic biopsychosocial disorder resulting from complex interactions of biological, psychological, socioeconomic and cultural forces on women. To understand women suffering from the disorder, one must understand how the genetically designed female brain and body i...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(93)90236-j
更新日期：1993-09-01 00:00:00
abstract：:Focal epilepsy secondary esp to scar or injured cortical tissue forms a source of constant depolarisation site with or without emitting negative charges (current of injury) into the surrounding area. This focal site is localised by EEG, MRI and if required, by PET and/or SPECT studies. The author postulates to implant...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(02)00266-9
更新日期：2002-11-01 00:00:00
abstract：:Consideration of nine major factors predisposing to cerebral thrombosis, coronary thrombosis or thrombosis in the deep veins of the calf, reveals that these factors all have one thing in common. Estrogen administration, pregnancy, ageing, smoking, infection, trauma, surgery, soft water and winter season are all associ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(79)90072-0
更新日期：1979-08-01 00:00:00
abstract：:Based on a logic of balance mechanisms influencing information processing in tripartite synapses are proposed. It is hypothesized that the number of expressed astrocytic receptors determines balanced and imbalanced synaptic states. Synaptic information processing in mental disorders is underbalanced in depression, ove...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2015.01.025
更新日期：2015-04-01 00:00:00
abstract：:Hypoplastic pineal glands and decreased melatonin levels are found in sudden infant death syndrome. Excess oxygen radical production and inadequate radical quenching is suggested to cause oxidative stress in the brain of sudden infant death syndrome victims. Loss of intraventricular cerebrospinal fluid melatonin could...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(97)90091-8
更新日期：1997-11-01 00:00:00
abstract：:A role for lipopolysaccharides (endotoxins, LPS) in 7 the pathogenesis of Reye's syndrome (RS) has previously been suggested. Impairment of hepatic LPS clearance can lead to systemic endotoxemia as previous studies by this and other laboratories have suggested for several hepatic disorders including RS. Systemic LPS m...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(92)90115-s
更新日期：1992-11-01 00:00:00
abstract：:Glaucoma is the leading cause of irreversible blindness worldwide, which is now viewed as a disease of brain with pathogenesis not fully understood. The main diagnostic methods are examining the retinal nerve fiber layer through optical coherence tomography and investigating visual field defect, but these methods pres...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2018.12.020
更新日期：2019-02-01 00:00:00
abstract：:Women with polycystic ovary syndrome (PCOS) have been shown to have a higher incidence of cancer. It is suggested that several factors, including hyperinsulinemia, dyslipidemia, raised estrogen levels, chronic inflammation, and reduced apoptosis are responsible for this association. However, in this paper we propose t...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109437
更新日期：2020-01-01 00:00:00
abstract：:Essential hypertension is a heterogeneous multifactorial syndrome associated with a high cardiovascular risk. A multiple choice of antihypertensive drugs is available; however, a high individual variability to the antihypertensive therapy is still responsible for a modest reduction of the CV risk and not satisfactory ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.07.058
更新日期：2007-01-01 00:00:00
abstract：:Ergothioneine is believed not to be synthesized by man but it accumulates to high concentrations in some mammalian cells as a result of dietary intake. Ergothioneine is known to chelate divalent metal ions with high affinity. Other substances which are potent chelators of divalent metal ions such as diphenylthiocarbaz...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(82)90137-2
更新日期：1982-08-01 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：:Micelle is a stable, passively targetable and solubilizing minute particle, and plays a key role to anticancer drug delivery for chemotherapy. With an increasing number of novel polymeric micelles synthesized, many anticancer drugs have been core-encapsulated in the micelles. However, only single drug was studied as t...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2008.05.002
更新日期：2008-09-01 00:00:00
abstract：:The pancreatic leakage is a lethal postoperative complication to the patients after duodenopancreatectomy for carcinoma of head of pancreas. However, we found that the patients who survived this lethal postoperative complication could potentially acquire a longer survival time comparing with those without postoperativ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.02.024
更新日期：2009-08-01 00:00:00
abstract：:Melatonin is well recognized for its role as a potent antioxidant and is directly implicated in the free radical theory of aging [1] [Reiter RJ, Pablos MI, Agapito TT, Guerrero JM. Melatonin in the context of the free radical theory of aging. Ann N Y Acad Sci 1996;786:362-78]. Moreover, melatonin has been shown to ret...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.12.041
更新日期：2007-01-01 00:00:00
abstract：:Burnout is a state of physical or mental collapse caused by overwork or stress. Burnout during residency training has gained significant attention secondary to concerns regarding job performance and patient care. The new COVID-19 pandemic has raised public health problems around the world and required a reorganization...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.109972
更新日期：2020-11-01 00:00:00
abstract：:The Aquatic Ape Theory claims that human ancestors once lived in a semi-aquatic habitat. Some human diseases might be explained by our aquatic past. Such problems include hyperventilation, periodic breathing, laryngo- and bronchospasm, vasomotor rhinopathy, seborrhea, dandruff, male pattern alopecia, rhinophyma, osteo...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(87)90076-4
更新日期：1987-11-01 00:00:00
