Abstract：
:The menstrual cycle appears to have evolved in humans and some other species to improve reproductive efficiency by enabling progesterone production without the presence of the fetus. This phenomenon is termed spontaneous decidualization. Repeated menstruation is produced in modern women because of better general health and having fewer pregnancies later in life and limiting breast feeding. The repeated breakdown of a progesterone primed endometrium releases an inflammatory cascade which appears to have short and long term adverse consequences. Repetitive modern menstruation is no longer a sign of good general and reproductive health but a harbinger of possible future health problems. Cyclical menstruation has no intrinsic biological value or necessity in modern life. Spontaneous decidualization can be prevented by using estrogen-progestin combinations or progestins on their own. Newer and safer hormonal products are now available and should become even safer in the future. Hormonal suppression of spontaneous decidualization should be encouraged in adolescent and young women as a health promotional option.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Goldstuck NDdoi
10.1016/j.mehy.2020.109955subject
Has Abstractpub_date
2020-11-01 00:00:00pages
109955eissn
0306-9877issn
1532-2777pii
S0306-9877(20)31244-5journal_volume
144pub_type
杂志文章abstract：:The aetiology of multiple sclerosis suggests that its occurrence depends on a combination of factors, including viral infection in early childhood, genotype and an initiating event within the central nervous system. The resulting damage may be caused by events initiated by free radicals. Free radicals themselves may c...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(97)90196-1
更新日期：1997-10-01 00:00:00
abstract：:Articles dealing with the epidemiological aspects of asthma were carefully reviewed in order to support or reject our clinical impression of increased rate of asthma among immigrants. Particular emphasis was put on data on very high or very low rates of asthma. The proposed theories to explain these differences were c...
journal_title：Medical hypotheses
pub_type： 杂志文章,meta分析
doi：10.1016/s0306-9877(98)90047-0
更新日期：1998-10-01 00:00:00
abstract：:Hepatopulmonary syndrome (HPS) is a severe pulmonary sequela which can affect up to 15% of patients with cirrhotic liver disease. There is no treatment for HPS other than liver transplantation. The cause of HPS is incompletely understood, but the pulmonary vasodilation in HPS is thought to be related to increased leve...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2003.10.017
更新日期：2004-01-01 00:00:00
abstract：:Anemia of chronic disease (ACD) is a condition of decreased red cell mass secondary to some other chronic inflammatory condition. In ACD total body iron stores are normal, though serum iron is typically low secondary to iron sequestration by macrophages, and often iron supplementation is not an effective treatment for...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2005.01.036
更新日期：2005-01-01 00:00:00
abstract：:Fulminant hepatitis is associated with an 80% mortality rate. Surviving patients do not develop chronic liver disease. Failure to produce adequate amounts of interferon and to achieve an antiviral state seem to be the basic defects in this condition. Tumor necrosis factor (TNF) has been shown to be induced by viruses....
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(88)90140-5
更新日期：1988-11-01 00:00:00
abstract：:Muscle spindles are increasingly recognized as playing a pivotal role in the cause of dystonia. This development and own laryngeal observations that support the idea of causally "well-intentioned" stuttering motivated us to present the following hypothesis: stuttering events compensate for a sensory problem that arise...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2012.03.025
更新日期：2012-07-01 00:00:00
abstract：:Dental caries, a bacterial process that results in the acidic destruction of tooth structure, has historically been managed by the mechanical excavation of diseased tooth structure and then restoration with a synthetic material. The mechanical excavation of the infected site is most commonly achieved by a dental handp...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2011.05.002
更新日期：2011-09-01 00:00:00
abstract：:A neural network approach to modeling the development of personality traits through social learning is presented. From the more general model the special case of a network mapping four situation dimensions (input neurons) into seven dimensional personality traits (output neurons) is described. This network is allowed ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(93)90057-w
更新日期：1993-08-01 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：:It is proposed that there is biological regulation of the low molecular weight antioxidant (LMWA) status of the body, and that these different antioxidants work in concert and in homeostasis as a system analogous to the regulation of acid-base status (pH). The theoretical design characteristics for such a system inclu...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1054/mehy.1998.0786
更新日期：1999-11-01 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：:The theory presented herewith provides a unified explanation for neoplasia and teratogenesis, both regarded here as stem cell disorders. Proliferating cells in the organism form two mutually exclusive classes, immortal stem cells and transitional cells whose life span is limited. Any lasting change in the organism e.g...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(85)90013-1
更新日期：1985-03-01 00:00:00
abstract：:Oxidative stress plays a crucial role in a variety of clinical settings of atherogenesis, and mediates many pathways linked to atherosclerosis and inflammation. gamma-Glutamyltransferase (GGT), an enzyme responsible for the extracellular catabolism of antioxidant glutathione, may directly take part in atherogenesis an...
journal_title：Medical hypotheses
pub_type： 杂志文章,评审
doi：10.1016/j.mehy.2006.04.010
更新日期：2006-01-01 00:00:00
abstract：:The available epidemiological data for amyotrophic lateral sclerosis (ALS) support an infectious etiology and lead us to propose a new hypothesis. We examined older epidemiological data concerning categories of the population with increased incidence (aged people, people living in rural areas, farmers, breeders), more...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.04.070
更新日期：2006-01-01 00:00:00
abstract：:Several studies have described unusually high incidence of vascular thrombosis in coronavirus disease-2019 (COVID-19) patients. Pathogenesis of the vascular thrombosis in COVID-19 is least understood for now and presents a challenge to the treating physicians. Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.110320
更新日期：2020-12-01 00:00:00
abstract：:The prevalence of adult and childhood obesity are increasing. Most of the human newborn's body fat accumulates in the last half of intrauterine life. Fat in the fetus was thought to be mostly synthesized from glucose, but now it is commonly accepted that the bulk of it is the product of placental transfer of maternal ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2018.10.022
更新日期：2019-01-01 00:00:00
abstract：:Maintaining a body temperature within a narrow range is vital for the survival of all mammals, including humans. With the help of optogenetics, a better understanding of the thermoregulatory organs and pathways is achieved. Optogenetic activation of the GABAergic neurons in the ventral part of the lateral preoptic nuc...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2020.109704
更新日期：2020-06-01 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
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：:Atrial fibrillation (Af) is the most common disorder of cardiac rhythm and is responsible for substantial morbidity and mortality in the general population. A recent community-based observational study revealed that diabetes and hypertension were associated with the development of Af. Since there is no definite eviden...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2005.07.018
更新日期：2006-01-01 00:00:00
abstract：:Osteoarthritis (OA) is a chronic, degenerative disorder of multifactorial aetiology, characterized by loss of articular cartilage and periarticular bone remodelling. Goals of managing OA include controlling pain, maintaining and improving function and health-related quality of life, and limiting functional impairment....
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2007.01.084
更新日期：2007-01-01 00:00:00
abstract：:Chloroquine is one of the antimalaria drugs, also used to treat rheumatoid arthritis and systemic lupus erythematosus (SLE). Although well tolerated in most individuals, it was suggested that chloroquine can exert a profound influence on renal function, especially in individuals with compromised body fluid status. How...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.06.012
更新日期：2007-01-01 00:00:00
abstract：:Antisense oligonucleotides (oligos) have demonstrated efficacy for the treatment of various cancers, infectious diseases and metabolic disorders. While most studies have utilized single oligos either administered alone, or more recently in combination therapy with other drugs, some investigators have administered more...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2004.12.032
更新日期：2005-01-01 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：:The paper discusses certain dynamic processes leading to meiotic (haploid) partition of chromatids via the chiasmatic mode in mammalian spermatic cells. The achiasmatic case is also reviewed briefly and only in the context of homologs with centromeric braids arrayed in the Para configuration. ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(94)90013-2
更新日期：1994-12-01 00:00:00
abstract：:Limbic associated pelvic pain is a proposed pathophysiology designed to explain features commonly encountered in patients with chronic pelvic pain, including the presence of multiple pain diagnoses, the frequency of previous abuse, the minimal or discordant pathologic changes of the involved organs, the paradoxical ef...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.12.025
更新日期：2007-01-01 00:00:00
abstract：BACKGROUND:There is widespread loss of acetylcholine and other neurotransmitters in Alzheimer's disease and vascular dementia. It has generally been assumed that death of neurons causes neurotransmitter loss, but alternatively neurotransmitter depletion itself may at least contribute to neurodegeneration. PRESENTATION...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.02.043
更新日期：2006-01-01 00:00:00
abstract：:A hypothesis is suggested, which emphasizes the role in carcinogenesis of the attack on low molecular nucleophilic substances (LMN) by electrophilic agents - chemical carcinogens, phisical factors, and antitumor alkylating agents. The significance of the degree of nucleophilicity (electronic charge, order of bonds, in...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(87)90003-x
更新日期：1987-01-01 00:00:00
abstract：:Helical bundles are found in all the known structures of peanut allergens. The peptide fragments, which survive gastrointestinal digestion of the allergens and are absorbed intact, are hypothesized to reassociate and form stable helical bundles in the circulation, which could elicit a specific IgE response resulting i...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2012.07.024
更新日期：2012-11-01 00:00:00
abstract：:Plasticity of adult cells has been identified in several post-natal tissues in the past few years and has attracted special attention in regenerative medicine. Skin is the biggest organ in the body. Adult skin consists of epidermis, dermis and appendages such as hairs and glands which are linked to the epidermis but p...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2003.12.022
更新日期：2004-01-01 00:00:00
