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 endocannabinoid system have been considered as possible causes of various forms of mental illness and abnormal behavior. In this paper, a novel hypothesis is presented that suggests that an as yet undefined subset of schizophrenia is caused by an excess of endocannabinoids that are produced to protect the brain in response to infections by agents such as Toxoplasma gondii.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Melamede Rdoi
10.1016/j.mehy.2008.08.025subject
Has Abstractpub_date
2009-02-01 00:00:00pages
220-2issue
2eissn
0306-9877issn
1532-2777pii
S0306-9877(08)00491-Xjournal_volume
72pub_type
杂志文章abstract：:Sperm production is regulated by inhibin. Inhibin secretion may be controlled by the number of ejaculations. The more the number of ejaculations, the less the inhibin in blood and the more the production of spermatozoa. ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(89)90089-3
更新日期：1989-10-01 00:00:00
abstract：:The angiotensin-converting enzyme 2(ACE-2) receptors with approx. 0.8% congestion in conjunctival surface, leads to increase susceptibility of Covid-19 transmission through ocular surface. It has been observed that prophylactic measures such as goggle or face shield are unable to offer complete protection against ocul...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.110288
更新日期：2020-11-01 00:00:00
abstract：:Numerous studies have shown that opioids and cannabinoids share some pharmacological properties. Accordingly, similarly to opioids, tolerance and dependence develops after chronic use of cannabinoids. Nitric oxide (NO) has been shown to play important roles both in opioid- and cannabinoid-induced tolerance and depende...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.02.013
更新日期：2009-08-01 00:00:00
abstract：:While cigarette smoking is recognized as an important risk factor in human oral cancers, the effect of water pipe smoking (WPS) on these cancers is not known. WPS is very common in the young adult population, especially in the Middle East, and has been associated with several respiratory problems. However, to date, th...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.10.013
更新日期：2010-03-01 00:00:00
abstract：:Alzheimer's disease (AD) may be related to nutritional deficiencies from exocrine pancreatic insufficiency (EPI) with mal-absorption of essential nutrients, vitamins and minerals. EPI occurs in about twenty percent of the elderly population, sometimes without obvious symptoms, a number similar to the incidence of AD. ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2017.03.020
更新日期：2017-05-01 00:00:00
abstract：:The artificial pancreas requires fast and reliable glucose measurements. The peritoneal space has shown promising results, and in one of our studies we detected glucose changes in the peritoneal space already at the same time as in the femoral artery. The peritoneal lining is highly vascularised, covered by a single l...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109318
更新日期：2019-11-01 00:00:00
abstract：:Jet lag is a travel-induced circadian rhythm phenomenon that afflicts healthy individuals following long- distance flights through several time zones. The typical jet-lag manifestations - insomnia during local sleep time, day fatigue, reduced concentration, irritability, and exhaustion with mild depression - are attri...
journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1054/mehy.2000.1094
更新日期：2001-01-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2017.01.008
更新日期：2017-03-01 00:00:00
abstract：:Lithium is a naturally occurring alkali metal, which living organisms ingest from dietary sources and which is also present in trace amounts in the human body. In much higher concentrations, lithium is effective as a medication for mania and mood swings including manic depressive disorders. Many studies have shown tha...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2001.1375
更新日期：2001-10-01 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：:This hypothesis named Salerian Addictive Potential (SAP) suggests that the addictive potency of any substance may be calculated with an algebraic equation of A=E/T(max)xt(1/2), where A is the addictive potency, E represents the euphoric potency, T(max) is the time to reach peak plasma concentration, and t(1/2) is the ...
journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/j.mehy.2010.01.008
更新日期：2010-06-01 00:00:00
abstract：:The efficiency of anti-tumour drug strongly depends on its dose. Higher drug doses and exposure times usually result in better treatment. It is why the implementation of high-dose treatment is always attractive. However, most of the drug delivery techniques meet essential limitations. In isolated regional perfusion a ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2017.05.025
更新日期：2017-07-01 00:00:00
abstract：:Immunology has many effects on atherogenesis. In addition to their usual action risk factors for atherosclerosis have an immunomodulating effect and immunomodulation may be a new treatment of atherosclerosis. ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(91)90159-v
更新日期：1991-09-01 00:00:00
abstract：:Neandertals were an anatomically distinct hominoid species inhabiting a vast geographical area ranging from Portugal to western Siberia and from northern Europe to the Middle East. The species became extinct 28,000 years ago, coinciding with the arrival of anatomically modern humans (AMHs) in Europe 40,000 years ago. ...
journal_title：Medical hypotheses
pub_type： 历史文章,杂志文章
doi：10.1016/j.mehy.2010.01.048
更新日期：2010-07-01 00:00:00
abstract：:The amino acid threonine contains two chiral carbons and thus can exist in four possible conformations. However, only a single conformation (2S, 3R) of threonine is incorporated in proteins by the cellular translation material. The conformation at the alpha carbon (carbon 2) is the same as that of the other amino acid...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2000.1231
更新日期：2001-04-01 00:00:00
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：:We propose that in any acid-base disturbance there is a predictable mathematical relationship between the changes in the individual serum anionic concentrations of chloride, bicarbonate and the unmeasured anion gap. Two indices were developed, from the ratios of the changes in these anionic concentrations, that are us...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(89)90063-7
更新日期：1989-11-01 00:00:00
abstract：:This paper outlines a method of demonstrating hepatitis B virus (HBV)-related transcriptional activity based on the random amplification of cDNA ends (RACE) protocol. Following RNA extraction from the appropriate tissue, cDNA is synthesized using a long oligo d(T) based primer containing unique 5' oligonucleotide sequ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(95)90056-x
更新日期：1995-08-01 00:00:00
abstract：:Postoperative cognitive dysfunction (POCD) is reported to occur frequently after all types especially cardiac surgery in elderly patients. It can be short-term or long-term and some cases even develop into Alzheimer's disease (AD). Although multi-risk factors associated with POCD have been identified, the etiology and...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2011.02.010
更新日期：2011-05-01 00:00:00
abstract：:Superficial fraying, splitting and fibrillation of articular cartilage as a consequence of ageing or mechanical injury is not always associated with joint pain. However, similar cartilage lesions accompanied by synovitis and engorgement of the subchondral vasculature generally is; the disorder being known as osteoarth...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(93)90068-2
更新日期：1993-08-01 00:00:00
abstract：:Oxidative stress-mediated neurodegeneration is responsible for 12% mortality around the globe. Alzheimer's Disease (AD) and Parkinson's Disease (PD) are the most prevalent neurodegenerative diseases, associated with modulation of acetylcholine levels and amyloid beta accumulation & dopamine level and alpha-synuclein o...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.109872
更新日期：2020-10-01 00:00:00
abstract：:Lack of vascularization results in increased demand for oxygen and creates a defined feature of the tumor microenvironment known as tumor hypoxia. It is well established that in response to hypoxia, hypoxia-inducible factor-1 α (HIF-1α) is induced which is an important factor in angiogenesis, invasion and metastasis. ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.110357
更新日期：2021-01-01 00:00:00
abstract：:The comorbidity of eating disorders and reflex sympathetic dystrophy syndrome in the same patients raises the possibility of a common pathway for both conditions. Reflex sympathetic dystrophy syndrome may be manifesting itself in those individuals who have sympathetic overdrive. Microtrauma, often induced by compulsiv...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(97)90305-4
更新日期：1997-03-01 00:00:00
abstract：:It is suggested here that a Hemoglobin S (HbS)-mediated membrane oxidant injury is responsible for both the protection from malaria infection in the heterozygous sickle cell state, and for a critical pathologic process in homozygous sickle cell disease. This suggestion is arrived at by applying to the HbS condition th...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(87)90135-6
更新日期：1984-07-01 00:00:00
abstract：:It is suggested that the Persian Gulf Syndrome (PGS) is caused by beef allergy. In the first symptomless phase, as a result of an energetic US Army immunizing program, using sera with adjuvants to produce detectable antibody levels, the subjects not only developed immunity to the targeted substances, but also became s...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(95)90106-x
更新日期：1995-09-01 00:00:00
abstract：:Solutes concentration in the aqueous humor of the eye is highest near the ciliary processes in the posterior chamber (p.c.) and lowest near the trabecular meshwork in the anterior chamber (a.c.). The high osmotic gradient across the semipermeable iris causes it to easily move forward at this location and occasionally ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(02)00338-9
更新日期：2003-03-01 00:00:00
abstract：BACKGROUND:The hypotheses of autoimmune, allergic or infectious etiology of severe mental illness have been reported in the scientific literature repeatedly. The main objective of this work is to study the relationship of inflammatory, autoimmunity or recent infection markers with the fact of suffering Severe Mental Di...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109279
更新日期：2019-09-01 00:00:00
abstract：:P53 is an oncosuppressor protein which acts via transcriptional and non-transcriptional mechanisms. The transcriptional function of p53 is mediated by specific responsive elements (RE). In the present study we found one perfect p53 RE located in the first intron of the gene encoding for CD58 (lymphocyte function Antig...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2001.1476
更新日期：2002-02-01 00:00:00
abstract：:It has been suggested that dopamine may play an important role in human evolution and adaptive behaviors. Recent studies have revealed an association between the dopamine system and social support among healthy individuals. However, the underlying mechanism remains unclear. In the present study, we propose a dopamine ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2011.07.030
更新日期：2011-11-01 00:00:00
abstract：:A novel virus named 2019 novel coronavirus (2019-nCoV/SARS-CoV-2) causes symptoms that are classified as coronavirus disease (COVID-19). Respiratory conditions are extensively described among more serious cases of COVID-19, and the onset of acute respiratory distress syndrome (ARDS) is one of the hallmark features of ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.109760
更新日期：2020-07-01 00:00:00
