Abstract:
:High doses of oestrogens in the dog and ferret cause myeloid hyperplasia in the bone marrow superseded by hypoplasia affecting all cell lines. In the peripheral blood after an initial leucocytosis, there is thrombocytopenia, anaemia and leucopenia. These effects, which are ultimately lethal, do not occur in cats, rats and monkeys, and their cause is unknown. It is speculated that they may be due to endocrine derangements possibly affecting the pituitary-adrenal axis and that species differences in oestrogen toxicity may be due to species differences in endocrinology.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Hart JEdoi
10.1016/0306-9877(85)90070-2subject
Has Abstractpub_date
1985-02-01 00:00:00pages
159-63issue
2eissn
0306-9877issn
1532-2777pii
0306-9877(85)90070-2journal_volume
16pub_type
杂志文章abstract::Pre-implantation genetic diagnosis (PGD) is a powerful clinical tool to identify embryos with or at risk of specific genetic diseases before implantation in utero after in vitro fertilization (IVF). PGD is performed on embryo biopsies that are obtained by aspiration of one or two cells from pre-implantation embryos at...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2014.08.019
更新日期:2014-10-01 00:00:00
abstract::Toll-like receptor 7 is critical in recognition of single strand RNA viruses, including SARS CoV-2, and generation of anti-viral immunity. Coronaviruses evolved strategies to dampen the host immunity. Herein, we discuss the potential use of TLR7 agonists in the early stages of COVID-19 treatment. ...
journal_title:Medical hypotheses
pub_type: 信件
doi:10.1016/j.mehy.2020.110202
更新日期:2020-11-01 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::Through the analysis of accumulated experimental data of cell growth, a model of unrestricted cell growth is presented here. This model is based hypothetically on the cellular commitment to senescence as in the previously presented commitment theory. Cells are divided into 3 types, namely uncommitted cells, committed ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(92)90034-a
更新日期:1992-08-01 00:00:00
abstract::Exercise induced bronchospasm (EIB) affects approximately 10% of normal individuals with higher prevalence rates among children, obese adults, and competitive athletes. Although hyperpnea with dry air is the best known cause, the problem is multifactorial with atopy, asthma and chlorine all playing established roles. ...
journal_title:Medical hypotheses
pub_type: 杂志文章,评审
doi:10.1016/j.mehy.2015.08.014
更新日期:2015-11-01 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::Preliminary but increasing evidence suggests that attention-deficit/hyperactivity disorder (ADHD), Tourette's syndrome (TS), and restless legs syndrome (RLS) may be comorbid. In the present article, we hypothesize that ADHD, TS, and RLS may be part of a spectrum, and that iron deficiency contributes to the pathophysio...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2007.10.013
更新日期:2008-01-01 00:00:00
abstract::Dental implants have been widely used in clinic for the restoration of lost teeth in recent decades, but there still remains a great challenge for even a higher success rate and a shorter rehabilitation time. The osseointegration between dental implant and alveolar bone tissue is crucial for a successful implantation....
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2008.05.013
更新日期:2008-10-01 00:00:00
abstract::In endemic pemphigus foliaceus (EPF) or "fogo selvagem" the epidemiological evidence shows that all the described outbreaks occur on the banks of rivers where there is mercury contamination from alluvium gold mining and deforestation. Pathophysiological evidence shows a similarity to pemphigus induced by sulphydryl (S...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2011.09.041
更新日期:2012-01-01 00:00:00
abstract::Extracellular nucleotide-induced stimulation and activation of peripheral blood leukocytes and subsequent degranulation play a critical role in immediate-type hypersensitivity reaction and other inflammatory diseases. The extracellular nucleotides stimulate a P2Y receptor(s) on human PMN with the pharmacological profi...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/s0306-9877(02)00213-x
更新日期:2002-09-01 00:00:00
abstract::Recently, the concept of drug delivery requires that the release of encapsulated drug be produced only at the diseased site with controllable rates. Given that thermosensitive hydrogels have been widely investigated for controlled delivery based on their phase transition, we speculate that nanoparticles with the novel...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2008.03.023
更新日期:2008-08-01 00:00:00
abstract::Styrene is one of the most important plastic monomers worldwide. Styrene-7,8-oxide (SO), the major in-vivo metabolite of styrene, is classified as probably carcinogenic to humans and carcinogenic in rodents. Biological monitoring of exposure to styrene is usually carried out by determination of mandelic acid and pheny...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.1999.0907
更新日期:2000-04-01 00:00:00
abstract::Reconciling the early promising results of radiation therapy in the treatment of epilepsy with the recent theory concerning the role of nonsynaptic mechanisms in focal epileptogenesis, it is suggested that the potential of irradiation as an alternative to temporal lobe resection in intractable epilepsy should be re-ev...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(80)90102-4
更新日期:1980-05-01 00:00:00
abstract::Parkinson's disease is a neurodegenerative condition characterized by tremor, rigidity, bradykinesia, and postural instability. Smoking is an inverse risk factor for Parkinson's disease, although the mechanism for this apparent neuroprotection is not definitively established. Smoking consistently upregulates nicotinic...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2009.03.053
更新日期:2009-12-01 00:00:00
abstract::Synthetic and semisynthetic fabrics generate electrostatic potentials on the surface of the skin. The author suggests that the effects of electrostatic potentials on physical and psychological condition are mediated by acupuncture points. The author further suggests that electrostatic charges on the surface of the ski...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.1999.0854
更新日期:2000-03-01 00:00:00
abstract::Depression is often associated with insulin resistance, owing to cortisol overproduction; conversely, many studies suggest that diabetics are at increased risk for depression. Recent evidence indicates that insulin is transported through the blood-brain barrier and influences brain function via widely distributed insu...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(94)90075-2
更新日期:1994-10-01 00:00:00
abstract::The origin and initiating features of PBC remain obscure despite decades of study. However, recent papers have demonstrated loss of canals of Hering (CoH) to be the earliest histologic change in liver biopsy specimens from patients with primary biliary cholangitis (PBC). We posit that CoH loss prior to significant inf...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2020.109680
更新日期:2020-03-16 00:00:00
abstract::The rigid gas permeable contact lens (RGPCL) is an ideal choice to improve the corrective vision of patients with a high degree of refractive error, keratoconus and corneal transplantation. However, RGPCL fitting is not an easy work for those patients with extremely irregular corneal surface. Technicians or doctors of...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2018.02.028
更新日期:2018-04-01 00:00:00
abstract::With spinal anesthesia the level of surgical analgesia is mostly reported without reference to the neuroanatomic map of spinal nerves. The classical maps are variably and inconsistently reported in many textbooks. Because of the differences between the classical maps of Keegan and Garrett and of Foerster, and also bec...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/s0306-9877(97)90116-x
更新日期:1997-06-01 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::A novel substance-attributed biophysical theory of brain-mind unity is presented. We separate spiritualism and matters of the soul from the medical sphere. Biophysical principles are responsible for the body's operational regimen (BOR) in the homeostatic state which allows for materialization and emergence of the mind...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.1999.0852
更新日期:2000-03-01 00:00:00
abstract::Bipedal locomotion and fine motility of hand and larynx of humans introduced musculoskeletal adaptations, new pyramidal, corticostriatal, corticobulbar, nigrostriatal, and cerebellar pathways and expansions of prefrontal, cingular, parieto-temporal and occipital cortices with derived new brain capabilities. All select...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2008.05.034
更新日期:2008-11-01 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::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::Current tuberculosis control measures are focused on the prompt detection and treatment of active tuberculosis. Despite the measured success of this strategy, tuberculosis continues to be a public health issue of major significance around the world. This unwanted situation suggests the need to expand our control effor...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2011.03.025
更新日期:2011-07-01 00:00:00
abstract::The rise of anatomical realism in sculpture with the Classical Greeks puzzles art historians. Recently, it has been discovered that the motor cortex perceives motor actions. I argue that Classical artists discovered a new aesthetic based on using art to stimulate not just, as previously, the visual cortex, but also th...
journal_title:Medical hypotheses
pub_type: 历史文章,杂志文章
doi:10.1016/s0306-9877(98)90257-2
更新日期:1998-07-01 00:00:00
abstract::Insufficient attention has been given to reports in the literature describing patients with symptomatic migraine who, in addition to, or instead of, the well-recognized zones of hypofusion, have zones of hyperperfusion, which can be interpreted as hypermetabolism due to neuronal activation. A new neural theory of migr...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.2000.1214
更新日期:2001-03-01 00:00:00
abstract::By influencing fetal brain development pregnancy may be prolonged beyond term for an unknown time period. In late gestation the mother animal (host) is nephrectomized. The urine of the fetus (transplant) is guided to the outside so that the fetal kidneys excrete the host's urinary secretory substances and eventually h...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(82)90078-0
更新日期:1982-10-01 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::It is suggested that apart from aflatoxins, plant medicinal preparations containing active compounds imperatorin, dictamine, marmesin and heraclenin may be responsible for some human cancers in Nigeria and perhaps other parts of Africa. Therefore, in this paper, a hypothesis is put forward that these compounds or thei...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(83)90096-8
更新日期:1983-07-01 00:00:00