Abstract:
:Alzheimer's disease is a debilitating age-related disorder characterized by distinct pathological hallmarks, such as progressive memory loss and cognitive impairment. During the last few years, several cellular signaling pathways have been associated with the pathogenesis of Alzheimer's disease, such as Notch, mTOR and Wnt. However, the potential factors that modulate these pathways and novel molecular mechanisms that might account for the pathogenesis of Alzheimer's disease or for therapy against this disease are still matters of intense research. Teneurins are members of a unique protein system that has recently been proposed as a novel and highly conserved regulatory signaling system in the vertebrate brain, so far related with neurite outgrowth and neuronal matching. The similitude in structure and function of teneurins with other cellular signaling pathways, suggests that they may play a critical role in Alzheimer's disease, either through the modulation of transcription factors due to the nuclear translocation of the teneurins intracellular domain, or through the activity of the corticotrophin releasing factor (CRF)-like peptide sequence, called teneurin C-terminal associated peptide. Moreover, the presence of Ca(2+)-binding motifs within teneurins structure and the Zic2-mediated Wnt/β-catenin signaling modulation, allows hypothesize a potential crosslink between teneurins and the Wnt signaling pathway, particularly. Herein, we aim to highlight the main characteristics of teneurins and propose, based on current knowledge of this family of proteins, an interesting review of their potential involvement in Alzheimer's disease.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Bastías-Candia S,Braidy N,Zolezzi JM,Inestrosa NCdoi
10.1016/j.mehy.2015.01.026subject
Has Abstractpub_date
2015-04-01 00:00:00pages
402-7issue
4eissn
0306-9877issn
1532-2777pii
S0306-9877(15)00047-Xjournal_volume
84pub_type
杂志文章,评审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::The various neurotransmitter systems postulated to be involved in the pathogenesis of Gilles de la Tourette syndrome(GTS) are described with special reference to the endogenous opioid system(EOS). Malfunction of the opioid system is proposed as the underlying disturbance in this disease causing secondary dysfunction o...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(86)90112-x
更新日期:1986-04-01 00:00:00
abstract::Most cancer cells differ from normal cells in that they show higher beta-glucuronidase activity and lower pH of their cytoplasm. Anti-cancer drugs can be designed which take advantage of these gradients to deliver maximal toxicity to tumors and minimal toxicity to normal tissue. Many design criteria are suggested here...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(80)90035-3
更新日期:1980-01-01 00:00:00
abstract::The aim was to search for periodical fluctuations in daily occurrence of gout attacks during the synodic lunar cycle. 126 gout attacks were recorded between 1972 and 1994 at known calendar dates. The synodic plexogram, displaying the number of attacks for each day of the cycle, was processed by cosinor regression. A p...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.1999.0973
更新日期:2000-07-01 00:00:00
abstract::Organisms release their antigens into the environment. Some antigens are volatile and may pass into the blood of other organisms during respiration. Fetal antigens enter the mother's bloodstream through the placenta. Foreign antigens in the blood can cause various chemical changes and may initiate an immune reaction. ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(95)90211-2
更新日期:1995-07-01 00:00:00
abstract::Ischaemic stroke ranks among the most important causes of death and disability in developed countries. Abnormal lipid metabolism is among the several factors that have a role in the pathogenesis of atherosclerosis. We hypothesize that the decreased resistance of low-density lipoproteins against oxidative stress is an ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.2000.1252
更新日期:2001-06-01 00:00:00
abstract::Rheumatic heart disease (RHD) remains a major cause of cardiac related mortality and morbidity in the developing countries due to poor diagnosis and lack of proper therapeutics. The definite reason of heart valve injury during RHD is poorly understood. Valvular endothelial cells play an important role in pathogenesis ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2016.09.001
更新日期:2016-10-01 00:00:00
abstract::In this work some aspects of carcinogenesis are given. The importance of the emergence of Z or H DNA structure in the gene, or in the flanking gene sequences for the gene deletion and unusual gene recombination, is discussed. Some considerations on the role of selective pressure (of polyamines, of Mg2+, of the various...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(91)90284-6
更新日期:1991-08-01 00:00:00
abstract::In idiopathic scoliosis the convexity of the thoracic curve of the vertebral column is most commonly directed toward the right side. The right lung is normally larger than the left lung. This asymmetry acting through chest wall movement is hypothesized to exert rotatory forces on the vertebral column. The result, in p...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(89)90074-1
更新日期:1989-04-01 00:00:00
abstract::Spinocerebellar ataxia type 2 (SCA2) is caused by a CAG trinucleotide repeat expansion within the coding region of the ataxin-2 gene. Affected individuals typically have between 34 and 57 CAG repeats. Signs of the disorder generally begin in adulthood and include progressive ataxia, dysarthria, tremor, hyporeflexia, a...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2004.03.046
更新日期:2004-01-01 00:00:00
abstract::A bi-directional association between mood disorders and migraine has been consistently reported. Nevertheless, the neurobiological substrate underlying the association between these disorders remains unknown. In the article herein we review evidence for the role of inflammatory cytokines in the neurobiology of bipolar...
journal_title:Medical hypotheses
pub_type: 杂志文章,评审
doi:10.1016/j.mehy.2012.01.036
更新日期:2012-05-01 00:00:00
abstract::There is growing dissatisfaction regarding the available diagnostic systems for psychiatric disorders (DSM, ICD). Psychiatrists acknowledge that though mental disease reflects brain disorders, the descriptive and symptom based nature of psychiatric diagnosis bears no relation to brain functions. According to Helmut's ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2004.02.010
更新日期:2004-01-01 00:00:00
abstract::For American medical historiography, to borrow from Dickens, these are the best of times and the worst of times. These are the times when rigorous scholarship has been brought to bear on the field (with great improvement in the quality of research) and when medicine is disappearing from its own history. These are the ...
journal_title:Medical hypotheses
pub_type: 历史文章,杂志文章
doi:10.1016/0306-9877(92)90079-r
更新日期:1992-06-01 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
pub_type: 杂志文章
doi:10.1016/j.mehy.2011.05.010
更新日期:2011-09-01 00:00:00
abstract::An unacceptably high incidence of preterm labour is seen in the black and coloured communities of South Africa. This hypothesis proposes that sodium-potassium adenosine triphosphatase activity plays an important role in preterm labour. The impaired activity of the sodium pump leads to increased cytosolic calcium level...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/s0306-9877(96)90081-x
更新日期:1996-09-01 00:00:00
abstract::Neuronal degeneration in the post-menopausal term leads to cognitive symptoms such as anxiety, difficulty in concentrating, overreacting to minor upsets, quickly becoming irritated and forgetfulness in approximately 70-80% of all women around the world. These symptoms, which result from microtubule damage in the axon ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2013.06.013
更新日期:2013-09-01 00:00:00
abstract::Chronic Fatigue Syndrome is a physiological state in which the patient feels high levels of fatigue without an obvious organic cause, which affects around 1 in 400 people in the developed world. A wide range of causes have been suggested, including immune or hormonal dysfunction, viral or bacterial infection, and psyc...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2008.02.022
更新日期:2008-10-01 00:00:00
abstract::Functional, excessive-possibly temporary-deficiencies of the trace element zinc can change immune functions prematurely from predominantly cellular Th1 responses to humoral Th2 responses. T helper (Th1) cells produce cytokines such as interleukin-2 (IL-2) and interferon gamma, thereby controlling viral infections and ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/s0306-9877(97)90244-9
更新日期:1997-07-01 00:00:00
abstract::Postoperative delirium represents a serious complication after major surgery. Patients suffer from anxiety, hallucinations and delusions, and have higher postoperative morbidity and mortality. Generally, the role of acetylcholine deficiency in delirium pathophysiology is widely accepted. How this pathologic state evol...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2006.07.003
更新日期:2007-01-01 00:00:00
abstract::Schizophrenia, if not the most difficult, is one of the most difficult mysterious puzzles for psychiatrists, psychologists, and neuroscientists to solve. In this paper, based on the previously known pathologies of schizophrenia, a new model is proposed for explanation of the formation of positive psychotic symptoms of...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2006.03.054
更新日期:2006-01-01 00:00:00
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:UNLABELLED:Teeth start as bi-layered epithelial soft tissue follicles within bony jaws. Follicles grow into teeth and erupt. Early third molar follicles are detectable 8-9 years (±9 months). Intra-oral dental arches of jaws have finite space accommodating formed crowns. The last teeth to erupt are third molars. When th...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2012.05.031
更新日期:2012-09-01 00:00:00
abstract::Hypertension is the leading cause of cardiovascular diseases, and an estimated 972 million people in the world are suffering from this problem. Indubitably, hypertension is an important worldwide public-health challenge. In recent years many efforts have been made to devise novel therapies involving new targets implic...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2009.03.030
更新日期:2009-09-01 00:00:00
abstract::Most cancer cells would not result in devastating tumours if it were not for their ability to metastasize. The process of cancer metastasis involves significant cell shape, motility, and adhesive changes of pre-cancerous cells, and the remodelling of the extracellular matrix, as well as cognate properties of neighbour...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2007.04.042
更新日期:2008-01-01 00:00:00
abstract::The etiology of sudden-death ischemic heart disease (SDIHD) remains an enigma. Data will be presented which suggest that SDIHD may be due to hypomagnesemia in and around the coronary arterial and arteriolar vessels. We have found that blood vessels (especially arteries and arterioles) deficient with respect to Mg can ...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(79)90074-4
更新日期:1979-08-01 00:00:00
abstract::Physiological levels of estrogen would seem to have a possible protective effect on hearing function and estrogen replacement therapy may delay hearing loss in menopausal women. Treatment of healthy menopausal women with Tibolone for 6 months resulted in improvement in audiometry results at low frequencies which was m...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2010.11.018
更新日期:2011-03-01 00:00:00
abstract::An increase in pro-inflammatory cytokines, decrease in endothelial nitric oxide (eNO) and adiponectin levels and an alteration in hypothalamic peptides and gastrointestinal hormones such as incretins and cholecystokinin that regulate satiety, hunger, and food intake occur in metabolic syndrome. Thus, metabolic syndrom...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2010.11.013
更新日期:2011-03-01 00:00:00
abstract::Most of the body iron is found within hemoglobin in red cells (the erythron), a smaller amount being distributed in other tissues such as muscles and in deposits. Iron homeostasis is a finely tuned process in which the most important regulators are probably the liver-derived hepcidin which blocks iron absorption and d...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2014.09.008
更新日期:2014-11-01 00:00:00
abstract::Foster found areas with the highest incidence of SIDS in USA in 1983-1984 coincided with the highest areas recorded with the highest incidence of goitre in First World War troops (1). Reid compared the two populations described as having the highest incidence of SIDS worldwide. Both were selenium deficient areas (King...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(94)90124-4
更新日期:1994-04-01 00:00:00
abstract::Developmental alcohol exposure adversely influences the developing brain. Alcohol exposure during rapid brain growth causes cell loss, alters connections between brain regions, and lowers the production of biological substances responsible for the communication among neurons. It is reasonable to suggest that alcohol m...
journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2003.12.021
更新日期:2004-01-01 00:00:00