Abstract：
:The present analysis addresses the question of how it has been possible for academic medicine to grow and lose its creative productivity at the same time. A mathematical model is developed to simulate the mechanisms that govern growth of medical systems over time. Time-dependent growth of system size increases the occurrence of statistical deviations of all system parameters. Deviations are correlated with costs and creative output. As deviation-induced costs start to strain the system's tolerance, means become implemented to restrict deviation, which ultimately also reduces its creative output. To maintain growth combined with high levels of creative output, an academic medical system would need to continuously branch off and nurture smaller subsystems, which pursue their own set of goals relatively independently of the overall academic structure.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Sonnenberg Adoi
10.1016/j.mehy.2005.02.028keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
400-4issue
2eissn
0306-9877issn
1532-2777pii
S0306-9877(05)00134-9journal_volume
65pub_type
杂志文章abstract：:The resonator theory claims that light scattering by the melanin granules of the retinal pigment epithelium causes light to be reflected back through the outer segment of the cones, in a direction opposite that of the incident light. These two opposite directed wave motions may produce standing waves inside the cone o...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(92)90046-f
更新日期：1992-02-01 00:00:00
abstract：:The lymphatic system is an important component of human health and is critical in maintaining microcirculatory flow and immune system homeostasis. During septic shock, increased capillary permeability results in excess filtration of intravascular fluid and solutes producing interstitial edema with subsequent hydrostat...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.109748
更新日期：2020-09-01 00:00:00
abstract：:Sixty percent of cases of clinical depression are considered to be treatment-resistant depression (TRD). Magnesium-deficiency causes N-methyl-d-aspartate (NMDA) coupled calcium channels to be biased towards opening, causing neuronal injury and neurological dysfunction, which may appear to humans as major depression. O...
journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/j.mehy.2009.10.051
更新日期：2010-04-01 00:00:00
abstract：:Previous papers of our group have reported that, in the first stages of nutritional recovery, the needs of undernourished infants, in terms of Protein Calories percentage (P%) were higher than normal, and similar to those of other mammals which double their birth weight faster than man. During this period, a high diet...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(85)90045-3
更新日期：1985-10-01 00:00:00
abstract：:An unexpected and novel finding is described and discussed here concerning the synaptic physiology of hippocampal slices during the period of recovery after brain dissection. Contrary to the common notion that the amplitude of synaptic responses recovers in a single exponential rising fashion, we found that synaptic r...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2011.09.010
更新日期：2011-12-01 00:00:00
abstract：:Human papillomavirus (HPV) type 16 is causally associated with a subset of oral cancers, predominantly those cancers arising in the oropharynx (OP). Increased HPV16 E6 and E7 oncogene expressions are responsible for the malignant transmission in these cancers. ErbB-2 is the family member most closely implicated in hum...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2004.03.013
更新日期：2004-01-01 00:00:00
abstract：:A localized graft-versus-host reaction was used to assess the cellular immunity of mice supporting progressive growth of an allogeneic tumor. It was found that early in tumor development anti-tumor-cellular-mediated immunity was hyper-responsive, and that adherent phagocytic cells isolated from the neoplasm would inhi...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(79)90050-1
更新日期：1979-09-01 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：:Carcinoma constitution originates in the hetero-duplication mitoses (4) which divide non-maturable stem cells into two different types of daughter cells: maturable and non-maturable cancerous stem cells. Throughout the progression of such mitoses, the organoid continuity of the cancer depends only on the non-maturable...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.1995.0677
更新日期：1999-06-01 00:00:00
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journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(85)90118-5
更新日期：1985-09-01 00:00:00
abstract：:An observation of sleep improvement with vitamin D supplementation led to a 2 year uncontrolled trial of vitamin D supplementation in 1500 patients with neurologic complaints who also had evidence of abnormal sleep. Most patients had improvement in neurologic symptoms and sleep but only through maintaining a narrow ra...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2012.03.031
更新日期：2012-08-01 00:00:00
abstract：:Exercise-induced hypoalgesia is characterised by a reduction in pain sensitivity following exercise. Recently, low intensity exercise performed with blood flow restriction has been shown to induce hypoalgesia. The purpose of this manuscript is to discuss the mechanisms of exercise-induced hypoalgesia and provide ratio...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109370
更新日期：2019-11-01 00:00:00
abstract：:Studies on receptor stability suggest that functional conversion of adrenoceptors between alpha and beta can occur in mammalian myocardium due to variations in the environment such as temperature changes, pH or hormonal changes. If adrenoceptors of the respiratory system behave similarly, heat and water loss of airway...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(88)90011-4
更新日期：1988-12-01 00:00:00
abstract：:In recent years a male-specific but species non-specific mammalian cell surface antigen, the H-Y antigen, has been demonstrated on somatic cells as well as on sperm. This raises some questions regarding unforeseen risks of certain medical procedures, notably blood transfusion. It is stressed that especially the possib...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(80)90132-2
更新日期：1980-11-01 00:00:00
abstract：:Diabetes is a global public health challenge that imposes heavy burdens on communities and individuals. Metformin, the first-line medication for diabetes, has the superiority of reducing risk of macrovascular diseases, all-cause mortality and even possibly cancers. Recent observational studies, however, have demonstra...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.05.025
更新日期：2013-08-01 00:00:00
abstract：:Despite the fact that antidepressants represent the gold standard for the treatment of depression, not all patients treated with an antidepressant monotherapy achieve complete remission of depressive symptoms and functional recovery. Therefore, further examination of the components that may be involved in the action m...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.11.009
更新日期：2007-01-01 00:00:00
abstract：:Kawasaki disease (KD) is an acute febrile systemic vasculitis of unknown etiology that occurs predominantly in children <5 years of age. For the etiopathogenesis of KD, there is no agreement even as to whether KD is an infectious disease or an immune-mediated disease. The epidemiologic characteristics of KD, including...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.12.051
更新日期：2007-01-01 00:00:00
abstract：:Geographic patterns with diminishing rates from north to south toward the equator have been described for a number of diseases, putatively related largely to "western" lifestyle. Among these the inflammatory bowel diseases; Crohn's (CD) and Ulcerative colitis (UC) have been prominent in sharing distributions with a nu...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2016.10.001
更新日期：2016-11-01 00:00:00
abstract：:Tourette syndrome is a chronic, idiopathic, childhood onset neuropsychiatric disorder with both motor and vocal tics. Tourette syndrome occurs worldwide and the clinical features are similar irrespective of the country of origin, with genetic causes suspected, but to date not proven. A link between red hair colour and...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.03.052
更新日期：2009-11-01 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
abstract：:Inflammation and the genes, molecules, and biological pathways that lead to inflammatory processes influence many important and disparate biological processes and disease states that are quite often not generally considered classical inflammatory or autoimmune disorders. These include development, reproduction, aging,...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2007.02.019
更新日期：2007-01-01 00:00:00
abstract：:There are many published studies about the epigenetic effects of the prenatal and infant periods on health outcomes. However, there is very little knowledge regarding the effects of the intrapartum period (labor and birth) on health and epigenetic remodeling. Although the intrapartum period is relatively short compare...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.01.017
更新日期：2013-05-01 00:00:00
abstract：:Autism is a severe developmental disability believed to have multiple etiologies. This paper outlines the possibility of a subacute, chronic tetanus infection of the intestinal tract as the underlying cause for symptoms of autism observed in some individuals. A significant percentage of individuals with autism have a ...
journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/s0306-9877(98)90107-4
更新日期：1998-08-01 00:00:00
abstract：:I hypothesize that the intermediates of the kynurenine (Kyn) pathway (KP) of tryptophan (Trp) degradation kynurenic acid (KA) and quinolinic acid (QA) play opposite roles in inflammatory diseases, with KA being antiinflammatory and QA being immunosuppressant. Darlington et al. have demonstrated a decrease in the ratio...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2018.06.021
更新日期：2018-09-01 00:00:00
abstract：:Neural tube defect (NTD) is more common among spontaneously aborted fetuses than in infants born in the third trimester, but there is no direct evidence that NTD-affected conceptuses, presenting at these two different gestational ages, are components of a single disease process. Evidence for homology is here presented...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(79)90129-4
更新日期：1979-02-01 00:00:00
abstract：:Review of 18th and 19th century psychiatric therapies raises the possibility that several may have altered the activity of vasopressin or Na-K-ATPase. Bleeding, whirling, nausea created by medicines, and vagus nerve stimulation by application of electricity through the skin all perturb the hypothalamic hormone, argini...
journal_title：Medical hypotheses
pub_type： 历史文章,杂志文章
doi：10.1016/j.mehy.2003.10.007
更新日期：2004-01-01 00:00:00
abstract：:Both epidemiological and experimental studies have shown that impaired growth in utero due to maternal malnutrition, resulting in low birth weight, is associated with a high incidence of glucose intolerance, insulin resistance, and type 2 diabetes in adult life. Maternal malnutrition is a worldwide problem and unavoid...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2005.12.024
更新日期：2006-01-01 00:00:00
abstract：:The visualization of bioprosthesis leaflet morphology might help to better understand the underlying mechanism of dysfunction in degenerated aortic bioprosthesis. Because today such visualization of bioprosthesis leaflet morphology is intricate to impossible with other imaging techniques, we hypothesized that the proc...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.03.032
更新日期：2013-07-01 00:00:00
abstract：:Benign prostatic hyperplasia (BPH) is one of the most common problems faced by aging men and can be associated with bothersome lower urinary tract symptoms that affect quality of life by interfering with normal daily activities and sleep patterns. Despite the clinical importance of BPH, its pathogenesis is still poorl...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2007.07.012
更新日期：2008-01-01 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
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109464
更新日期：2020-02-01 00:00:00
