A hypothesis for the molecular mechanism of tumor killing by porphyrins and light.

abstract：:Duchenne muscular dystrophy (DMD) is a lethal muscle wasting disease caused by a lack of dystrophin, which eventually leads to apoptosis of muscle cells and impaired muscle contractility. Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR associated protein 9 (CRISPR/Cas9) gene editing of induced pluripo...

journal_title：Medical hypotheses

authors： Hagan M,Ashraf M,Kim IM,Weintraub NL,Tang Y

更新日期：2018-01-01 00:00:00

abstract：:Hepatic encephalopathy (HE) is a common neuropsychiatric complication of liver disease affecting about 20-30% patients with cirrhosis. HE may only affect quality of life (e.g. impairments in attention; coordination; driving ability), but in some patients this progresses to coma and death; defining mortality in those w...

journal_title：Medical hypotheses

authors： Jalan R,Wright G,Davies NA,Hodges SJ

更新日期：2007-01-01 00:00:00

abstract：:An aldehyde-dehydrogenase (ALDH2) deficiency is a biological curb on excess alcohol-drinking. This enzyme deficiency is very common amongst Oriental people while it is relatively rare for most other populations. We observe that there is good geographical correlation between the prevalence of the mutant ALDH2*2 alleles...

journal_title：Medical hypotheses

authors： Lin YP,Cheng TJ

更新日期：2002-08-01 00:00:00

abstract：:Synthetic ligands of the retinoid X receptor (RXR) have shown antidiabetic activity in mice, apparently owing to the fact that they stimulate the transcriptional activity of PPAR-gamma/RXR heterodimers, much like thiazolidinedione drugs. The chlorophyll metabolite phytanic acid has been shown to be a natural ligand fo...

journal_title：Medical hypotheses

authors： McCarty MF

更新日期：2001-02-01 00:00:00

abstract：:Curvilinear distraction is currently under investigation to reconstruct curved maxillofacial bone defects. However, previous studies have revealed the discrepancy between the contour of the regenerated bone in the distraction gap and the curvilinear pathway of the transport disc. We hypothesize that the discrepancy is...

journal_title：Medical hypotheses

authors： Zhou L,Shang H,Feng Z,Liu C,Ye W,Ma Q,Wu W,Liu Y

更新日期：2012-10-01 00:00:00

abstract：:For a virus to survive and replicate in an organism, it must employ strategies to evade and misdirect the host's immune response. There is compelling evidence that the primary immunoevasive strategy utilized by the SARS virus, like influenza, is to inhibit its host's corticosteroid stress response. This is accomplishe...

journal_title：Medical hypotheses

authors： Wheatland R

更新日期：2004-01-01 00:00:00

abstract：:The paper based on the hypothesis that mechanical impulses cause the transmission of excitement in the peripheral and central nervous system. Possible connections between changes in the tubular neuronal network and the morphological findings of Alzheimer's disease are presented. Additionally, changes in the viscosity ...

journal_title：Medical hypotheses

authors： Barz H,Barz U

更新日期：2014-05-01 00:00:00

abstract：:The hypothesis is put forward that coronary heart disease (CHD) arises from a chronic imbalance between anabolism and catabolism in the body, induced by the psychosocial environment and mediated through the central nervous system (CNS) and neuroendocrine system. Psychosocial demands increase periods of waking arousal ...

journal_title：Medical hypotheses

authors： StGeorge DP

更新日期：1983-11-01 00:00:00

abstract：:Stress, in its many forms, is long associated with the etiology and course of schizophrenia. The mechanisms mediating the impacts of stress are not fully elucidated. Here it is proposed that stress induced cortisol alters kynurenic acid (KA) and quinolinic acid (QA) in the cortex and amygdala/striatum, respectively. T...

journal_title：Medical hypotheses

authors： Anderson G

更新日期：2011-01-01 00:00:00

abstract：:The inverse association between maternal folate status and incidence of infants born with neural tube defects (NTD's) was recognized over twenty years ago and led the US health agencies in the early 1990s to recommend that women of childbearing age consume 400 microg of folic acid each day. The FDA followed by mandati...

journal_title：Medical hypotheses

authors： Rogers EJ

更新日期：2008-09-01 00:00:00

abstract：:Contrast-induced nephropathy (CIN) is regarded as acute tubular necrosis resulting from the cytotoxicity of contrast media and the medullary hypoxia linking to the interplay of vasoconstriction and vasodilatation. Saline infusion may prevent CIN by inhibiting renin release and thus production of angiotensin II (ANG II...

journal_title：Medical hypotheses

authors： Wong PC,Guo J,Zhang A

更新日期：2015-12-01 00:00:00

abstract：:The accepted paradigms of mainstream neuropsychiatry appear to be incompletely adequate and in various cases offer equivocal analyses. However, a growing number of new approaches are being proposed that suggest the emergence of paradigm shifts in this area. In particular, quantum theories of mind, brain and consciousn...

journal_title：Medical hypotheses

authors： Tonello L,Cocchi M,Gabrielli F,Tuszynski JA

更新日期：2017-04-01 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

authors： Sandyk R

更新日期：1986-01-01 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

authors： Anderson G,Maes M,Berk M

更新日期：2012-06-01 00:00:00

abstract：:On March 11, 2020, the World Health Organization declared the coronavirus outbreak a pandemic. Since December 2019, the world has experienced an outbreak of coronavirus disease 2019 (COVID-19). Epidemiology, risk factors, and clinical characteristics of patients with COVID-19 have been reported but the factors affecti...

journal_title：Medical hypotheses

authors： Taghizadeh-Hesary F,Akbari H

更新日期：2020-07-01 00:00:00

abstract：:NETosis, being an alternative form of cell death is the creation of web-like chromatin decondensates by suitably primed neutrophils as a response to stimulus aimed at containing and eliminating the same. In certain situations, it causes more harm than benefit in the form of bystander damage directly or via activation ...

journal_title：Medical hypotheses

authors： Gupta S,Sahni V

更新日期：2020-11-01 00:00:00

abstract：:ATP sensitive (K(+)(ATP)) potassium cardiac channels are recruited when ATP levels are low as in ischemic injury and acute trauma. Such activation results in ECG-ST elevation and cardiac arrhythmias. K(+)(ATP) channel recruitment may be blocked by the sulfonylurea glibenclamide, permitting a wide variety of animal exp...

journal_title：Medical hypotheses

authors： Hoffman I,Saltzman B

更新日期：2003-04-01 00:00:00

abstract：:The present study developed a feature selection (FS)-based decision support system using the electroencephalography (EEG) signals recorded from neonates with and without seizures. The study employed 10 different FS algorithms to reduce the classification cost by using fewer features and to improve the classification p...

journal_title：Medical hypotheses

authors： Açıkoğlu M,Tuncer SA

更新日期：2020-02-01 00:00:00

abstract：:Researchers have recently reported a possible inverse relationship between taking steroids or non-steroidal anti-inflammatory drugs, or both, and the development of Alzheimer's disease. In this article it is hypothesized that the reduction in the human body of the amount of available arachidonic acid, the precursor of...

journal_title：Medical hypotheses

authors： Newman PE

更新日期：1998-04-01 00:00:00

abstract：:The prevalence of atopic diseases (atopic dermatitis, bronchial asthma, allergic rhinitis) has considerably increased for the last 40 years. This tendency has coincided with the beginning of the epoch of the use of the topical corticosteroids, which have a potent immunomodulation action. This fact itself as well as a ...

journal_title：Medical hypotheses

authors： Pampura AN

更新日期：2005-01-01 00:00:00

abstract：:No single dietary factor or ingested substance has been implicated in the aetiology of oesophageal carcinoma especially in high-risk areas of the world. Although not well defined, there is heavy consumption of tannin-rich foods, particularly sorghum, by populations at high risk for carcinoma. The carcinogenic properti...

journal_title：Medical hypotheses

authors： Warner TF,Azen EA

更新日期：1988-06-01 00:00:00

abstract：:Interleukin (IL)-17 is a pro-inflammatory cytokine originally described in T lymphocytes. Increased production of IL-17 has been linked to the induction of cytokines, chemokines and adhesion molecules in various cell types, effects that likely contribute to a number of inflammatory diseases including rheumatoid arthri...

journal_title：Medical hypotheses

authors： Csiszar A,Ungvari Z

更新日期：2004-01-01 00:00:00

abstract：:The epidemiologic findings of Kaposi's sarcoma (KS) among patients with the acquired immunodeficiency syndrome (AIDS) suggest that human immunodeficiency virus (HIV) infection is insufficient for the development of KS. It was speculated that another sexually transmitted infection is responsible for the markedly increa...

journal_title：Medical hypotheses

authors： Rechavi G,Katzir N,Ramot B

更新日期：1991-04-01 00:00:00

abstract：:The possibility that Hematopoiesis is under CNS control has been discussed in the literature; but never been conclusively proved at the molecular level. Evidence in the form of antigenic similarity between murine brain and the Stem Cell, and the decline in the number of Stem Cells following the lesioning of the Locus ...

journal_title：Medical hypotheses

authors： Bhander MS

更新日期：1988-12-01 00:00:00

abstract：:Chronic idiopathic axonal polyneuropathy (CIAP) is referred to as axonal neuropathy after an adequate workup fails to determine a cause. A subgroup of patients with CIAP has impaired glucose tolerance (IGT). These patients have been considered by some investigators to have a neuropathy as a result of IGT and/or metabo...

journal_title：Medical hypotheses

authors： Rezania K,Soliven B,Rezai KA,Roos RP

更新日期：2011-04-01 00:00:00

abstract：:Physical inactivity and a low maximal aerobic capacity (VO2max) strongly predict morbidity and mortality in patients with type 2 diabetes (T2D). Patients with T2D have a reduced VO2max when compared with healthy individuals of similar age, weight, and physical activity levels, and this lower aerobic capacity is usuall...

journal_title：Medical hypotheses

authors： Leone RJ,Lalande S

更新日期：2017-03-01 00:00:00

abstract：:In humans, the nasal retina projects to the contralateral hemisphere, whereas the temporal retina projects ipsilaterally. The nasotemporal line that divides the retina into crossed and uncrossed parts coincides with the vertical meridian through the fovea. This normal projection of the retina is severely altered in al...

journal_title：Medical hypotheses

authors： Banihani SM

更新日期：2015-10-01 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

authors： Gallup GG Jr,Hobbs DR

更新日期：2011-09-01 00:00:00

abstract：:The nasal mucosa is very vascular, receiving more blood flow per cubic centimeter of tissue than does muscle, brain or liver (Drettner and Aust, 1974; [1]). This vascularity can present a major problem during sinus surgery. Surgeons routinely use topical vasoconstrictors in endoscopic sinus surgery however, the optima...

journal_title：Medical hypotheses

authors： Campbell RG,Nair S,Sacks R,Douglas RG

更新日期：2014-06-01 00:00:00

abstract：:Surgery for intractable affective illnesses has generated considerable controversy over the last century. Deep brain stimulation (DBS) has revolutionized neurosurgical practice, especially in the field of advanced Parkinson's disease and, more recently, in selected medical-refractory cases of obsessive-compulsive diso...

journal_title：Medical hypotheses

authors： Sakas DE,Panourias IG

更新日期：2006-01-01 00:00:00