Abstract：
:The endotheliopathy associated with insulin resistance syndrome appears to result largely from excessive free fatty acid (FFA) exposure that boosts endothelial production of diacylglycerol, thereby activating protein kinase C. This endothelial "lipotoxicity" can be alleviated by very-low-fat diets and by appropriate weight loss. In addition, pharmacological activation of endothelial AMP-activated kinase (AMPK), as with the drug metformin, has the potential to decrease the FFA content of endothelial cells by stimulating fat oxidation; AMPK may also suppress endothelial de novo synthesis of diacylglycerol by inhibiting glycerol-3-phosphate acyltransferase. These considerations may rationalize the superior impact of metformin therapy on the macrovascular health of diabetics. More generally, metformin - or, preferably, better tolerated activators of AMPK - may have considerable potential for promoting vascular health in the large proportion of the adult population afflicted with insulin resistance syndrome.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
McCarty MFdoi
10.1016/j.mehy.2004.01.042keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
1211-5issue
6eissn
0306-9877issn
1532-2777pii
S0306987704002956journal_volume
64pub_type
杂志文章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：BACKGROUND:Somatization is a multisomatoform disorder characterized by medically unexplained, functional or psychosomatic symptoms. Similar somatic symptoms are key components of depression and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). METHODS:This paper reviews the evidence that such symptoms are o...
journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/j.mehy.2012.02.023
更新日期：2012-06-01 00:00:00
abstract：:Traumatic iris sphincter tear has been thought to occur secondary to anteroposterior compression of the globe with defined forces lead to equatorial expansion and active pull along the corneoscleral junction and sphincter tear. However, here in this report, we elaborate the additional forces involved in the traumatic ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2018.11.013
更新日期：2019-01-01 00:00:00
abstract：:The mechanism of pathogenesis of idiopathic Parkinson's disease (PD) is unknown. In a study of 200 PD patients and 200 age- and sex-matched controls, Strang noted a marked and statistically significant higher incidence of ulcers (diagnosed by X-ray or surgery) in the PD patients compared to the controls (14% to 4%). T...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.1997.0701
更新日期：1999-07-01 00:00:00
abstract：:Neuromyelitis optica (NMO) is an uncommon, life-threatening demyelinating disease that produces transverse myelitis and optic neuritis. An important pathogenetic mechanism belongs to NMO-IgG autoantibodies directed against the ultrastructure of the water channel aquaporin-4 (AQP4), the so-called orthogonal arrays of p...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.02.036
更新日期：2009-09-01 00:00:00
abstract：:A review of the literature shows that x-ray induced lung adenomas in mice, breast adenomas in rats and thyroid adenomas in rats show the same approximate dependence for number of tumors vs dose. It is hypothesized that these benign tumors are due to cell proliferation. The controls of the G1 stage of the cell cycle ha...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(83)90049-x
更新日期：1983-01-01 00:00:00
abstract：:This hypothesis clearly proposes the true and previously undiscovered cause of male homosexuality or bisexuality and in most cases the predictability in infancy of the development of this sexuality in adulthood. It is based on compelling new evidence which has accumulated over many years. The fetal and neonatal period...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2016.06.006
更新日期：2016-09-01 00:00:00
abstract：:To compensate for the high metabolic costs of lactation, the likelihood of re-impregnation shortly after childbirth is normally reduced due to hormonal changes triggered by breast feeding during the postpartum period. Nowadays, however, bottle feeding as a substitute for breast feeding precludes such changes and leads...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2011.05.010
更新日期：2011-09-01 00:00:00
abstract：:Current paper aims to hypothesize that, oral surgical interventions such as tooth extractions, endosseous implant placement, subgingival curettage, etc. might result in widespread of fungal species via blood stream and can cause fungal contaminations of the cardiac valves. We hereby suggest that, an additional fungal ...
journal_title：Medical hypotheses
pub_type： 信件
doi：10.1016/j.mehy.2019.109482
更新日期：2020-02-01 00:00:00
abstract：:Non-invasive molecular analysis of fetal DNA is the diagnostic goal of prenatal medicine. Circulating fetal DNA can be detected in maternal plasma. Recently, it has been detected in the urine of pregnant women. We hypothesize that fetal DNA is present also in maternal saliva and that advances in stabilization and isol...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.09.022
更新日期：2010-02-01 00:00:00
abstract：:Parathyroid hormone (PTH) acts as a controller of bone remodeling and has influence on periodontal tissues. In addition to the well-established catabolic effects (activation of bone resorption) of PTH, it is recognized that the PTH intermittent administration has anabolic effects (promotion of bone formation). However...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2015.12.025
更新日期：2016-03-01 00:00:00
abstract：:Cancer is the second cause of death worldwide, but current therapies are often insufficient or linked with toxicity. Initial evidence in scientific literature seems to support the role of non-pharmacological strategies, including hypoglycemia, in cancer treatment. The biological rationale for hypoglycemia-based treatm...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109276
更新日期：2019-09-01 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：:A meniscal graft extrusion is still an unresolved problem that affects most patients after a meniscal transplantation. Despite the advances in surgical techniques, together with the improved methods for a meniscal allograft sizing, success is only observed in up to 75% of patients after they experience a meniscal allo...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2017.02.003
更新日期：2017-04-01 00:00:00
abstract：:Sudden cardiac death prematurely claims the lives of some 7 million each year worldwide. It occurs primarily in patients with an underlying structural cardiac abnormality, and regardless of the type of the underlying pathology (heart failure, dilated and hypertrophic cardiomyopathies, myocardial infarction and aging),...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2008.02.018
更新日期：2008-08-01 00:00:00
abstract：:The Davson-Danielli model of the cell membrane accounted for nearly all the space within it by suggesting that it was composed of structural proteins and lipids; this would leave virtually no space for the large number of enzymes, carriers, antigens, antibodies, and receptors for hormones, transmitters, drugs and toxi...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(88)90100-4
更新日期：1988-07-01 00:00:00
abstract：:It has been uncovered that expansion of trinucleotide repeats in the human genome are causing a variety of genetic diseases. They are also identified in other loci that are not clearly related to particular diseases, which indicates such repeat expansion is one of the general forms of evolution occurring throughout th...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2000.1140
更新日期：2001-03-01 00:00:00
abstract：:Previous reports of specific patterns of increased fragility at common chromosomal fragile sites (CFS) found in association with certain neurobehavioural disorders did not attract attention at the time due to a shift towards molecular approaches to delineate neuropsychiatric disorder candidate genes. Links with miRNA,...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.05.039
更新日期：2010-05-01 00:00:00
abstract：:S-allylgutimine has immunostimulant and tumor cell inhibitory activities. This complex action may be a result of the stimulation of IL-2 production. The effectiveness of immunotherapy depends on the uncoupling of IL-2 downregulation. This principle can be widely used with those immunological diseases where IL-2 level ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(93)90214-b
更新日期：1993-06-01 00:00:00
abstract：:This paper will show that the fractional difference in the human gender ratio (GR) between the GR(at death) for those born in solar cycle peak years (maxima) and the GR(at death) in those born in solar cycle non-peak years (minima), e.g., 0.023, divided by Pi, yields a reasonable approximation of the quantum mechanica...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.03.028
更新日期：2009-09-01 00:00:00
abstract：:Tubulointerstitial fibrosis is a final common pathway to the eventual structural desolation of kidneys. However, the mechanism involved in this phenomenon is still poorly understood, and current therapies are ineffective or only marginally effective. Mast cell has a variety of physiological and pathological functions ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.10.059
更新日期：2007-01-01 00:00:00
abstract：:Neuroleptic-induced tardive dyskinesia represents a major serious side-effect of chronic therapy with neuroleptic drugs. The pathomechanisms underlying this disorder are not well understood. Although the dopaminergic supersensitivity theory has gained most attention, there is evidence to suggest involvement of other t...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(86)90138-6
更新日期：1986-01-01 00:00:00
abstract：:Exercise is thought to have considerable potential as a preventive for osteoporosis. We critically examined 27 studies that address the prophylactic role of exercise in osteoporosis. The results from both cross-sectional and longitudinal studies showed that differences in bone mass were more pronounced in the axial sk...
journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/0306-9877(89)90118-7
更新日期：1989-09-01 00:00:00
abstract：:Most cancer cells differ from normal cells in that they show higher beta-glucuronidase activity and lower pH of their cytoplasm. Anti-cancer drugs can be designed which take advantage of these gradients to deliver maximal toxicity to tumors and minimal toxicity to normal tissue. Many design criteria are suggested here...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(80)90035-3
更新日期：1980-01-01 00:00:00
abstract：:The clinical syndrome of hypoxic ischemic encephalopathy (HIE) which occurs in association with birth asphyxia, is thought to represent a reperfusion injury consequent upon the generation of cytotoxic oxygen derived free radicals. It has recently been suggested that resuscitation of asphyxiated infants with unrestrict...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(93)90080-a
更新日期：1993-10-01 00:00:00
abstract：:The cancer cell appears to contain two non phosphorylating glycolytic pathways in addition to phosphorylating glycolysis and the aerobic citric acid and phosphogluconate cycles. It is hypothesised that these pathways are all interconnected and in the static adult cell non phosphorylating glycolysis is in a state of co...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(83)90017-8
更新日期：1983-02-01 00:00:00
abstract：:Alzheimer's disease (AD) is the most frequent cause of dementia. Besides cognitive deterioration, patients with AD are prone to seizures - more than 20% of patients diagnosed with AD experience at least one unprovoked seizure and up to 7% have recurrent seizures. Although available antiepileptic drugs (AEDs) may suppr...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2016.12.006
更新日期：2017-02-01 00:00:00
abstract：:Yawning continues to pose as a scientist's conundrum. Evidence is presented of yawning and contagious yawning in a number of different neurological disorders. Explanations are discussed in the context of disparate neurological disorders together with proposals for how theses findings may be linked. Thus, greater under...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2010.08.002
更新日期：2010-12-01 00:00:00
abstract：:Idiopathic intracranial hypertension (IHH or pseudotumor cerebri) is an uncommon but important cause of headache, characterized by raised intracranial pressure (ICP) in the absence of infection and intracranial pathology on neuroimaging. Lumbar puncture (LP) is usually contra-indicated in situations where the ICP is s...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.1998.0756
更新日期：1999-10-01 00:00:00
abstract：:Calcification is the most characteristic pathologic feature of healed meconium peritonitis. Occurrence of calcification in meconium peritonitis has been reported, but its mechanism has not been discussed. According to our studies, the cause of calcification and giant cell reaction is meconium peritonitis is related to...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(84)90062-8
更新日期：1984-05-01 00:00:00
