Abstract：
:The polyol pathway consists of two enzymes aldose reductase (AR) and sorbitol dehydrogenase (SDH); the former is the first enzyme in the polyol pathway, that catalyzes the reduction of glucose to sorbitol, the latter is the second one, that converts sorbitol to fructose using by NAD(+) as a cofactor. We along with others have recently found that SDH activity, the second step in the polyol pathway, might make a greater contribution to the etiology of diabetic retinopathy than does the first step involving AR. In this paper, we propose a novel hypothesis that polymorphisms of SDH gene may be correlated with SDH gene expression levels in diabetic retinas, thus being a valuable genetic marker for diabetic retinopathy.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Amano S,Yamagishi S,Koda Y,Tsuneoka M,Soejima M,Okamoto T,Inagaki Y,Yamada K,Kimura Hdoi
10.1016/s0306-9877(03)00013-6keywords:
subject
Has Abstractpub_date
2003-04-01 00:00:00pages
550-1issue
4eissn
0306-9877issn
1532-2777pii
S0306987703000136journal_volume
60pub_type
杂志文章abstract：:The high prevalence of deleterious polygenic type 2 diabetes (T2D) is a paradox requiring explanation beyond food excess, inactivity and the obesity resulting from positive energy balance. Historically, hunting-foraging and later agrarian communities often manifested a converse negative energy balance due to nutrition...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.04.014
更新日期：2019-06-01 00:00:00
abstract：:The modified base 5-methylcytidine has been found in the DNA of a number of different eukaryotic cells where it occurs principally in the dinucleotide sequence -CmpG- which is present as a palindrome in double-strand nucleic acid molecules. There is considerable evidence to indicate and suggest that 5-methylcytosine s...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(84)90117-8
更新日期：1984-10-01 00:00:00
abstract：:Hypoplastic pineal glands and decreased melatonin levels are found in sudden infant death syndrome. Excess oxygen radical production and inadequate radical quenching is suggested to cause oxidative stress in the brain of sudden infant death syndrome victims. Loss of intraventricular cerebrospinal fluid melatonin could...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(97)90091-8
更新日期：1997-11-01 00:00:00
abstract：:Incidental pituitary adenoma is the common finding during brain imaging. According to multistep model of pituitary tumourigenesis genetic alterations provide the initiating event that transforms cells while hormones play a role in promoting cell proliferation. Development of pituitary adenoma in a case of excessive hy...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.11.044
更新日期：2007-01-01 00:00:00
abstract：:The title enzyme, peptidylglycine alpha-hydroxylating monooxygenase (PHM), is essential to the in vivo generation of a wide variety of physiologically significant alpha-amidated peptide hormones from the corresponding C-terminal glycine-extended prohormones. Over a 20-year period of time a massive amount of experiment...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2003.11.012
更新日期：2004-01-01 00:00:00
abstract：:Many theories try to explain the existence and function of paranasal sinuses. This paper is an attempt to correlate process of paranasal sinus development in human with bone pneumatization processes in animals. It is here proposed that this mechanism starts in utero and continues after birth. During endochondral devel...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2003.12.028
更新日期：2004-01-01 00:00:00
abstract：:The accumulation of fibrin/fibrinogen and other coagulation factors in and around solid tumors and metastatic foci has been recognized for a century as an aspect of cancer pathology. On this basis, anticoagulants and fibrinolytic agents have been deployed as adjuvant anticancer therapies, but they have proved clinical...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.06.045
更新日期：2007-01-01 00:00:00
abstract：:The presence of the tumour induces important metabolic changes in the cancer patient which are not merely due to the fact that the tumour acts as a parasite, thus depleting the host of nutrients, but that are mainly the result of both tumoral and humoral mediators. The new metabolic status of the cancer patient may le...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(98)90037-8
更新日期：1998-11-01 00:00:00
abstract：:Dietary animal fat increases the risk of colorectal cancer. A factor in the increased risk is hypothesised to result from the inhibition of isoforms of a colonic epithelial cell enzyme that detoxifies genotoxins, glutathione S-transferase, by one of the major secondary bile acids produced in the colon by fat digestion...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(92)90168-c
更新日期：1992-10-01 00:00:00
abstract：:The terminology relating to 'psychological stress' is so confused and ambiguous that research in this field - and application of its results - must surely be hampered. Relevant words with conflicting usages and scientific definitions include 'stress' itself, 'stressor', 'strain', 'challenge', 'demand', 'threat', 'reso...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.10.043
更新日期：2010-04-01 00:00:00
abstract：:The Sudden Infant Death Syndrome (SIDS) is responsible for the death of 10,000 infants annually in the U.S.A. The cause of these deaths is not known; all SIDS infants studied died during sleep in a silent fashion and there are no specific lesions observable post mortem. It may be of significance, however, that nearly ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(87)90195-2
更新日期：1987-03-01 00:00:00
abstract：:A mechanism of action for Panax ginseng (PG) and Eleutherococcus senticosus (ES) is proposed which explains how they could produce the paradoxical effect of sometimes increasing and sometimes decreasing the stress response. The mechanism suggests that this biphasic effect results from increased occupancy of positive a...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2000.1163
更新日期：2001-05-01 00:00:00
abstract：:The DSM is not brain-related and is thus unable to relate clinical assessments to putative brain disturbances. 'Clinical brain profiling' (CBP) involves the rearrangement of clinical findings to assess the relevant disturbances in brain dynamics. CBP has three major pathological dimensions, (1) disorders of basic brai...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.02.039
更新日期：2009-08-01 00:00:00
abstract：:The concept of local pathology has long served neurology admirably. Relevant models include self-organizing nonlinear brain dynamics, global workspace and dynamic core theories. However such models are inconsistent with certain clinical phenomena found in Charles Bonnet syndrome, disjunctive agnosia and schizophrenia,...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2010.04.012
更新日期：2010-11-01 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：:Recently, the metabolic routes for acetone metabolism have been described. Therefore, acetone cannot further be regarded as a waste product of metabolism. However, its physiological role in biochemical machinery is not clear. Here, an integrative model for the role of acetone metabolism is presented that orders the ev...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.1998.0752
更新日期：1999-09-01 00:00:00
abstract：:Oral submucous fibrosis (OSMF) is a potentially malignant disorder of the oral cavity. Most of the people affected by OSMF are betel quid chewers. It is characterized by epithelial atrophy and progressive accumulation of collagen fibers in lamina propria and submucosa of the oral mucosa. 7.6% of OSMF cases undergo ora...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.07.001
更新日期：2013-10-01 00:00:00
abstract：:Oxygen therapy, usually administered by a facemask or nasal cannulae, is the current default treatment of respiratory failure. Since respiration entails intake of oxygen and release of carbon dioxide from tissues as waste product, the notion of administering carbon dioxide in respiratory failure appears counter-intuit...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2017.11.010
更新日期：2018-01-01 00:00:00
abstract：:The thickness of the choroid is measured on the optical coherence tomography (OCT) as the distance between the hyperreflective retinal pigment epithelium and the hyperreflective chorio-scleral junction, contributed by the choroidal vessels and choroidal melanocytes. Our hypothesis is that the amount of absorption and ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.110408
更新日期：2021-01-01 00:00:00
abstract：:The article introduces the hypothesis that aquaporin 1 of intramuscular capillary endothelial cells may enhance the capability of the skeletal myofiber regeneration. Evidence for the hypothesis is based on the indication obtained from our previous muscle xenograft study into athymic nude mice, and the indications prop...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.07.056
更新日期：2007-01-01 00:00:00
abstract：:We recently demonstrated that amyloid beta peptide (Abeta) is catabolized primarily by a neutral endopeptidase, neprilysin, in the brain and that a neuropeptide, somatostatin (SST), regulates brain Abeta level via modulation of neprilysin activity. Because SST expression in the brain declines upon aging in various mam...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2005.02.045
更新日期：2005-01-01 00:00:00
abstract：:The science of osteoimmunology, a relatively new field of research, reveals the important interactions between the immune system and skeletal system. Interactions occur between prostaglandin metabolism, inflammatory proteins and bone metabolism. Systemic as well as local sources of inflammation appear to be actively i...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.03.042
更新日期：2013-08-01 00:00:00
abstract：:Supercritical carbon dioxide (CO(2)) possesses germicide (bactericide and sporicide) effect. Despite of the fact, that this effect is used in industrial sterilization processes, the sterilization mechanism at molecular level is unclear. Our hypotheses can provide a molecular-biological explanation for the phenomenon. ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.08.043
更新日期：2010-02-01 00:00:00
abstract：:CML, a myeloproliferative clonal disorder of myeloid stem cells, is characterized by the consistent presence of a bcr-c-abl fusion gene which is formed as a result of a translocation of the c-abl gene from chromosome 9 to downstream of the bcr gene on chromosome 22 (ph'). Current approaches to the treatment of CML are...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(91)90273-2
更新日期：1991-08-01 00:00:00
abstract：:Recent findings indicate a principal role for Hepcidin in iron homeostasis. Hepcidin is also thought to play a vital role in the pathogenic mechanism of anaemia in patients with inflammation or chronic disease. Under normal conditions influx and efflux of iron from duodenal enterocytes is regulated by Ferroportin. Fer...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2007.10.007
更新日期：2008-01-01 00:00:00
abstract：:Infection of the lymphatic system by Wuchereria bancrofti microfilaria is the most common cause of elephantiasis, a disease that affects over 100 million people. The nightly release of microfilaria into the circulation coincides with the feeding activity of its mosquito vector, a synchronization that is presumably an ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.02.034
更新日期：2009-08-01 00:00:00
abstract：:Several studies have demonstrated the existence of morphological, biological, genetic and antigenic correlations between human and animal retroviruses. Furthermore, some agents of bovine and feline origin can also be considered useful comparative models for the pathogenetic study of human diseases such as leukaemia, a...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(89)90194-1
更新日期：1989-07-01 00:00:00
abstract：:Recent articles about the roles and relationships of tissue inhibitor of metalloproteinase-1 and transforming growth factor-beta 1 in various types of normal tissues and malignancies give rise to the question: 'Is there a relationship between them with regard to malignant melanoma progression?' In the light of many re...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.2001.1270
更新日期：2001-08-01 00:00:00
abstract：:Hypotheses regarding the factors that predispose individuals to developing AIDS after exposure to HTLV-III/LAV are beginning to emerge. It is suggested here that surgical removal of tonsils in childhood may increase the risk of developing opportunistic infections after infection with this newly discovered retrovirus. ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(86)90076-9
更新日期：1986-03-01 00:00:00
abstract：:In literature, the cerebellum is given a substantial role in cognitive processes, in addition to traditional views on cerebellar function of regulating motor behaviour. The phenomenon of cerebellar damage causing impairments in memory and executive functioning was observed in various cerebellar disorders. Cerebellar c...
journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/j.mehy.2010.02.035
更新日期：2010-08-01 00:00:00
