Abstract：
:A case-control study was conducted in order to test the hypothesis that a reduced exposure to human seminal factors in the early reproductive life of women is a risk factor in breast cancer. The relative risk of exposure to the hypothetical semen-factor deficiency is 4.7 times greater for breast-cancer patients than for the controls. When the contraceptive methods alone are taken into account, the relative risk increases up to 5.3. About 16 percent of the women using barrier methods (condom, and other) and 3.4 percent of women using non-barrier contraceptive methods (diaphragm, pill, IUDs, rhythm, tubal ligation, and other) would develop breast cancer. The risk of developing breast cancer within the same population in the U.S. is 5 times greater in women who use barrier methods than in women who use non-barrier contraceptive methods. The reduction in the incidence of breast cancer by eliminating the barrier contraceptive techniques would be not less than 50 percent in married women in the entire population. The possibility of preventive measures within an adequate family planning program is emphasized.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Gjorgov ANdoi
10.1016/0306-9877(78)90051-8subject
Has Abstractpub_date
1978-03-01 00:00:00pages
79-88issue
2eissn
0306-9877issn
1532-2777pii
0306-9877(78)90051-8journal_volume
4pub_type
杂志文章abstract：:Immune competence is considered as a state of equilibrium between humoral and cellular immunity. This notion fits well with the functionally antagonistic cytokine profiles in cell groups of CD4(+)-helper cells as described by Mosmann and Coffman. The Th-1 cells release mainly IL-2, IL-12 and IFN gamma and thereby stim...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(96)90130-9
更新日期：1996-06-01 00:00:00
abstract：BACKGROUND:No method is currently available for preoperative approximation of the patient's situation to the one existing during pneumonectomy in general anesthesia with alternations of single and double-lung ventilation in the lateral position. We hypothesized that a patient breathing the room air in the sitting posit...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2011.07.003
更新日期：2011-10-01 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：:Except for immunization programs our warfare with bacteria has always been a frontal assault with antibiotics. In this warfare we win battles, but with every new battle the enemy gets stronger. We need other options. Recent experience suggests two alternatives. First, public health measures designed to control the spr...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(02)00352-3
更新日期：2003-02-01 00:00:00
abstract：:Hypnosis and music interventions (HMIs) have shown positive influence on cancers for nearly 200years, but the underlying mechanisms were rarely explored systematically. The hypothesis suggests a potential curative efficacy of HMIs on cancers by inhibiting hypoxia inducible factor-1 (HIF-1), which is a key mediator of ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2015.07.008
更新日期：2015-11-01 00:00:00
abstract：:Hypotheses generally conform to paradigms which, over time, change, usually tardily, after they have become increasingly difficult to sustain under the impact of non-conforming evidence and alternative hypotheses, but more important, when they no longer are comfortably ensconced in the surrounding social-economic-poli...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2005.07.030
更新日期：2006-01-01 00:00:00
abstract：:Breast and ovarian cancer rates in Pakistan are significantly higher than in neighboring countries. The cancer rate discrepancies cannot be explained with discrepancies of their risk factors. We propose that observed cancer excess in Pakistan is due to cancer development by negative heterosis. Heterosis occurs when a ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2004.10.013
更新日期：2005-01-01 00:00:00
abstract：:There are differences in male and female height throughout the growth period. Utilising reference standard height charts we calculated the difference in male and female height as a function of age. A triphasic relationship was observed with statistically significant peaks (males greater than females) at 8 months and 1...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(87)90122-8
更新日期：1984-07-01 00:00:00
abstract：:The structural rearrangement of human sheathed capillaries in congestive splenomegaly has been considered. In abnormal spleens the external diameter and wall thickness were decreased, while the internal diameter was increased. Moreover, the total length and the absolute number of sheathed capillaries were increased, t...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(95)90266-x
更新日期：1995-05-01 00:00:00
abstract：:I have previously assumed that stem tumour cells are 'para-embryonal cells' (PECs) poor or missing in major histocompatibility complex (MHC) antigens. PECs might induce adjoining differentiated hyperplastic cells to also express tumoral phenotype and properties, thus transforming them into 'differentiated para-embryon...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/s0306-9877(98)90213-4
更新日期：1998-05-01 00:00:00
abstract：:Non-invasive molecular analysis of fetal DNA is the diagnostic goal of prenatal medicine. Circulating fetal DNA can be detected in maternal plasma. Recently, it has been detected in the urine of pregnant women. We hypothesize that fetal DNA is present also in maternal saliva and that advances in stabilization and isol...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.09.022
更新日期：2010-02-01 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：: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：:The major thesis of the proposed hypothesis is that in the absence of microbial material synovial macrophages in rheumatoid arthritis patients continue to release interleukin 1, which perpetuates the inflammation so characteristic of the disease. Its release is suggested to result from an altered synovial macrophage g...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(82)90084-6
更新日期：1982-10-01 00:00:00
abstract：:Insulin resistance (IR) is a common denominator of metabolic and hemodynamic disorders simultaneously present in one person and responsible for elevated risk of developing type 2 diabetes (T2DM) and cardiovascular incidents. According to the latest research, IR is present in 25-45% of the general population. Therefore...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2018.02.032
更新日期：2018-05-01 00:00:00
abstract：:The secretion of Follicle Stimulating Hormone by the pituitary gland is not regulated entirely by the negative feedback from gonadal steroids. There is ample evidence that the secretion of FSH is regulated by a non-steroidal hormone of gonadal origin termed "inhibin". Using a radioimmunoassay procedure, immunoreactive...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(84)90119-1
更新日期：1984-10-01 00:00:00
abstract：:Circulating tumor cells (CTCs) have the potential to provide a surrogate for "real-time biopsy" of tumor biological activity. Enumeration and molecular characterization of CTCs in pancreatic cancer could play an important role in diagnosis, predicting the risk for tumor recurrence, and providing novel target therapy b...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2013.03.027
更新日期：2013-06-01 00:00:00
abstract：:Chemo- and radio-resistant cancer cells within solid tumors undermine the effectiveness of these approaches to achieving oncolysis. These resistant cells and clusters of cells typically thrive at low oxygen tensions and are reliant on anaerobic metabolic pathways that churn out lactate. This hypoxic state is one that ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2006.09.013
更新日期：2007-01-01 00:00:00
abstract：:Epidemiological studies highlight the negative correlation between vitamin D levels and the incidence of many non-skeletal diseases including inflammatory diseases, cancer, and metabolic and neurological disorders. However, most randomized controlled trials (RCTs) with oral vitamin D supplementation give mixed results...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2019.109417
更新日期：2020-01-01 00:00:00
abstract：:Glaucoma is the leading cause of irreversible blindness worldwide, which is now viewed as a disease of brain with pathogenesis not fully understood. The main diagnostic methods are examining the retinal nerve fiber layer through optical coherence tomography and investigating visual field defect, but these methods pres...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2018.12.020
更新日期：2019-02-01 00:00:00
abstract：:Autism is a neurodevelopmental disorder that according to the Centers for Disease Control and Prevention (CDC) affects 1 in 150 children in the United States. Autism is characterized by impairments in social relatedness and communication, repetitive behaviors, abnormal movements, and sensory dysfunction. Recently emer...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2004.11.018
更新日期：2005-01-01 00:00:00
abstract：:The reluctance of physicians to get involved with child abuse can be attributed to the problem of role conflict. Physicians derive their social authority from the Aesculapian tradition. This form of social authority is fragile and easily subverted, yet of utmost importance if physicians are to retain their effectivene...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(82)90028-7
更新日期：1982-04-01 00:00:00
abstract：:Bacterial biofilms have been found in many human bacterial infectious processes including chronic rhinosinusitis. It was found also at the surface of nasal polyps, and both at the surface of the nasal part and the stalk of the antrochoanal polyp. However, our recent research clearly demonstrated the presence of the bi...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2010.04.005
更新日期：2010-10-01 00:00:00
abstract：:Recurrent aphthous ulcer (RAU) is the most common ulcer of oral non-keratinized mucosa, but the treatment is always limited at present. Considering the multifactorial etiology of RAU, a novel therapeutic agent with multi-bioactivties should be presented. Garlic has been recognized as a favorable natural medicine again...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2008.07.028
更新日期：2008-12-01 00:00:00
abstract：:Thrombotic thrombocytopenic purpura (TTP) is a severe, occlusive, thrombotic microangiopathy characterized by a systemic platelet aggregation, organ ischemia, profound thrombocytopenia and erythrocyte fragmentation. Recent observations have documented that a deficiency of a von Willebrand factor (VWF)-cleaving proteas...
journal_title：Medical hypotheses
pub_type： 临床试验,杂志文章
doi：10.1016/j.mehy.2005.06.015
更新日期：2005-01-01 00:00:00
abstract：:Temporomandibular joint (TMJ) ankylosis is a disease that severely affects the human health. Although it is well known that trauma is the most common cause of TMJ ankylosis, the mechanisms by which the traumatic TMJ ankylosis develops are unclear. The existing hypothesis is not convincing in explaining the genesis of ...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2009.01.024
更新日期：2009-07-01 00:00:00
abstract：:Einstein is often quoted to have said that without the bee, mankind would have but 4years to live. It is highly unlikely that he made this comment, which was even mentioned in a Lancet article on honey bees. However, the current vanishing of the bees can have serious consequences for human health, because 35% of the h...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2010.04.003
更新日期：2010-10-01 00:00:00
abstract：:Condylar cartilage is absolutely necessary for the normal function of temporomandibular joint (TMJ). Unfortunately, condylar cartilage defect or missing is also one of the common clinical problems. Repair or reconstruction of cartilage is always a hot topic. Cell based cartilage regeneration is suggested as novel ther...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2011.03.045
更新日期：2011-07-01 00:00:00
abstract：:In observing the phenomenon of alterations of tumor cell phenotypes, one may envision a mechanism that induces the change in tumor cell characteristics and the appearance of metastasis. Schirrmacher (1) has suggested that the effect of the microenvironment on tumor cells influences the control of gene expression and t...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/0306-9877(81)90010-4
更新日期：1981-05-01 00:00:00
abstract：:Chimeras are the result of fusion of two zygotes to form a single embryo, producing an individual with genetically different kinds of tissue. If the fused zygotes are of different sex, the individual develops both ovarian and testicular tissues. The majority of these people are best reared as females and many pregnanc...
journal_title：Medical hypotheses
pub_type： 杂志文章
doi：10.1016/j.mehy.2010.04.021
更新日期：2010-11-01 00:00:00
