abstract：:By influencing fetal brain development pregnancy may be prolonged beyond term for an unknown time period. In late gestation the mother animal (host) is nephrectomized. The urine of the fetus (transplant) is guided to the outside so that the fetal kidneys excrete the host's urinary secretory substances and eventually h...

journal_title：Medical hypotheses

authors： Metka W

更新日期：1982-10-01 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

authors： Rafter GW

更新日期：1982-10-01 00:00:00

abstract：:We have observed a distinct difference in the alpha-fetoprotein production of Sprague-Dawley rats and Swiss white mice. When both animals are fed a 1% D/L-ethionine diet, only the rat responds with increased levels of hepatic alpha-fetoprotein synthesis as shown by radioimmunoassay studies. Also, hybridization studies...

journal_title：Medical hypotheses

authors： Payette R,Hancock RL

更新日期：1982-10-01 00:00:00

abstract：:Ergothioneine is believed not to be synthesized by man but it accumulates to high concentrations in some mammalian cells as a result of dietary intake. Ergothioneine is known to chelate divalent metal ions with high affinity. Other substances which are potent chelators of divalent metal ions such as diphenylthiocarbaz...

journal_title：Medical hypotheses

authors： Epand RM

更新日期：1982-08-01 00:00:00

abstract：:In early synovitides the tissue inflammatory cell reaction is often weak and sometimes absent, many alterations being consistent with nonvasculitic exudation (I). Increased permeability to protein may require little, if any, endothelial damage. In rheumatoid arthritis (RA) increased transfer of fluid and protein from ...

journal_title：Medical hypotheses

authors： Ahlqvist J

更新日期：1982-07-01 00:00:00

abstract：:Learning disability, attentional disorder and childhood major depression are frequent diagnoses in children with behavioral disturbances and impaired school performance. All three disorders are associated with right cerebral hemisphere dysfunction. Anatomical disturbance of right hemisphere function results in learnin...

journal_title：Medical hypotheses

authors： Brumback RA,Staton RD

更新日期：1982-05-01 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

authors： Thong YH

更新日期：1982-04-01 00:00:00

abstract：:In attempts to develop a rational anticancer strategy the same homologous tissue in 3 conditions were used side by side as targets: normal epidermis of the mouse back. Tween 60R-provoked benign epidermal hyperplasia, and carcinogen-provoked malignant condition. In contrast to the highest tolerated doses of the cytosta...

journal_title：Medical hypotheses

authors： Setälä K

更新日期：1982-03-01 00:00:00

abstract：:About 1900, modern food selection and processing caused widespread epidemics of the B vitamin deficiency diseases of beriberi and pellagra which, for genetic reasons, often expressed as different diseases ranging from bowel and heart disease to dermatoses and psychoses. But the B vitamins merely help convert essential...

journal_title：Medical hypotheses

authors： Rudin DO

更新日期：1982-01-01 00:00:00

abstract：:Cameron and Pauling have reported large survival increases in terminal cancer patients treated with Vitamin C. Their trials, which have been criticised because not based on random, double-blind principles, are reviewed here using a broad inductive method that relies on diverse data of varying quality. Conclusions are ...

journal_title：Medical hypotheses

authors： Jaffey M

更新日期：1982-01-01 00:00:00

abstract：:It has been shown previously that the precipitator hypothesis of causation is able to account for certain key features of the epidemiological evidence that conflict with initiator and promoter hypotheses. The precipitator hypothesis states that the carcinogenic risk depends linearly in the average rate of smoking at a...

journal_title：Medical hypotheses

authors： Burch PR

更新日期：1981-12-01 00:00:00

abstract：:Body size and body composition have been suggested as the best explanation for the temporal trend toward early menarche over the last 100 years. There is evidence from human and animal studies that indicates that body size is not the primary factor in influencing the occurrence of menarche. The data actually show that...

journal_title：Medical hypotheses

authors： Sanchez A,Kissinger DG,Phillips RI

更新日期：1981-11-01 00:00:00

abstract：:Data on lymphocyte biology indicate that the humoral system of B-cells is specifically active with precise analogies at all mucosal levels. Might there be a corresponding function for T-lymphocytes at the cutaneous structure level? Certain physiological findings appear to suggest that the two main lymphocyte populatio...

journal_title：Medical hypotheses

authors： Franchi F,Seminara P,Montella F

更新日期：1981-09-01 00:00:00

abstract：:We suggest that polymyalgia rheumatica with giant cell arteritis (PR-GCA) is an arachidonic acid metabolites mediated disease which can be diagnosed more accurately and monitored more precisely for therapeutic benefits by the serial determinations of the major urinary prostaglandin F, serum urinary lysozymes, serum ac...

journal_title：Medical hypotheses

authors： Nalbandian RM,Henry RL,Williams GA,Fleischman JA,O'Donnell FE Jr,Reeser FH

更新日期：1981-09-01 00:00:00

abstract：:The apparent association of laryngeal cancer with asbestos and possibly other occupational exposures can be accounted for by the hypothesis that chronic vocal abuse peculiar to certain working conditions will act as a promoting factor for active carcinogens found mainly in tobacco smoke. ...

journal_title：Medical hypotheses

authors： Chovil A

更新日期：1981-07-01 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

authors： Klein BY

更新日期：1981-05-01 00:00:00

abstract：:Based on a consideration of biochemical mechanisms, rational methods for the prevention of cancer and for its positive regression are presented. It is demonstrated that the means employed are fundamentally opposed so that if the preventive method were to be used after the onset of cancer, it would only accelerate its ...

journal_title：Medical hypotheses

authors： Duchesne J

更新日期：1981-04-01 00:00:00

abstract：:Tumor cells have an absence or deficiency of mitochondrial superoxide dismutase. Superoxide is produced when hematoporphyrin derivative is exposed to visible light. A significant portion of the antitumor effect of porphyrin:light therapy is hypothesized to be mediated by superoxide. ...

journal_title：Medical hypotheses

authors： Peterson DA,McKelvey S,Edmondson PR

更新日期：1981-02-01 00:00:00

abstract：:It has been hypothesized that sulfite oxidase deficient persons may be at increased risk to toxicity from SO2 and dietary sulfites widely used for food preservation. Sulfite oxidase is believed to be responsible for the detoxification of SO2 and/or sulfite to sulfate for excretion. Human and animal studies have shown ...

journal_title：Medical hypotheses

authors： Calabrese E,Sacco C,Moore G,DiNardi S

更新日期：1981-02-01 00:00:00

abstract：:Increased chemotactic activity of peripheral polymorphonuclear (PMN) cells has been described in disease states of different etiology and may represent a common pathway in the generation of an inflammatory reaction. The suppressive effect of colchicine on PMN chemotaxis may explain its effect in apparently unrelated d...

journal_title：Medical hypotheses

authors： Levy M,Ehrenfeld M,Gallily R,Eliakim M

更新日期：1981-01-01 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

authors： Nørby S

更新日期：1980-11-01 00:00:00

abstract：:The materno-fetal relationship is governed by critical levels of progesterone (P) and prostaglandin F2 alpha (PGF2 alpha). The 'see-saw' in concentration of these molecules maintain and terminate pregnancy in placental mammals. Apart from the enhancement or suppression of uterine contractility by PGF2 alpha and P resp...

journal_title：Medical hypotheses

authors： Pearson RD

更新日期：1980-10-01 00:00:00

abstract：:The interstitial space (ISS) can be thought of as an organ of translocation. Defined in this way the concentration of any substance in the ISS is equal to the ratio of an input to a clearance function. When substances accumulate, there is a disturbance of one or both functions. The three phase anatomy of the ISS give ...

journal_title：Medical hypotheses

authors： Katz MA

更新日期：1980-09-01 00:00:00

abstract：:Evidence is reviewed supporting a hypothesis of an anticarcinogenic effect of magnesium. Animal studies reported increased cancer in rodents maintained on magnesium deficient diets and a preventive effect for rodents fed excess levels of magnesium. Epidemiologic evidence is presented that magnesium levels in water, fo...

journal_title：Medical hypotheses

authors： Blondell JM

更新日期：1980-08-01 00:00:00

abstract：:The author reviews the criticism aimed at medical education and suggests that its shortcomings could be corrected by modifying the curriculum so that irrelevant material is eliminated and replaced in part with the humanities. ...

journal_title：Medical hypotheses

authors： Prioreschi P

更新日期：1980-05-01 00:00:00

abstract：:Reconciling the early promising results of radiation therapy in the treatment of epilepsy with the recent theory concerning the role of nonsynaptic mechanisms in focal epileptogenesis, it is suggested that the potential of irradiation as an alternative to temporal lobe resection in intractable epilepsy should be re-ev...

journal_title：Medical hypotheses

authors： Elomaa E

更新日期：1980-05-01 00:00:00

abstract：:Following the rate of proteoglycan synthesis as the metabolic parameter of the growth of cartilage cells, indicates that hormonal and local agents are two distinct types of extracellular regulators responsible for altering the basic metabolic rates of cells. Such changes in growth rate occur regularly at physiological...

journal_title：Medical hypotheses

authors： Nevo Z,Laron Z

更新日期：1980-04-01 00:00:00

abstract：:There are large amounts of zinc in muscle and zinc ions can enhance the degree of muscle contraction in response to direct stimulation while at the same time inhibiting neuromuscular transmission. The opposites of these effects would lead to myotonia and muscle weakness. There are many parallels between the non-muscul...

journal_title：Medical hypotheses

authors： Horrobin DF,Morgan RO

更新日期：1980-04-01 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

authors： Rubin DM,Rubin EJ

更新日期：1980-01-01 00:00:00

abstract：:At present no good method of assisting the right ventricle of the heart exists. This paper presents a new and effective approach to assisting the right ventricle of the heart which can be utilized independently or during cardiac surgery. Through implementation of this method, and timed inflation and deflation of sever...

journal_title：Medical hypotheses

authors： Gordon RT,Gordon D

更新日期：1979-11-01 00:00:00

abstract：:A mechanism is proposed for the formation of Ebg-evolved beta galactosidase-of E. coli based on the following assumptions: 1. In the presence of lactose, certain proteins being translated bind to their m-RNA-ribosome complexes; 2. This binding interferes with the release of m-RNA from the bacterial chromosome, marking...

journal_title：Medical hypotheses

authors： Erhan S

更新日期：1979-11-01 00:00:00

abstract：:The mitogenic action of the estrogen-receptor complex is supposedly similar in both normal and malignant target tissues. As receptors are present in several types of non-target tissues, in the case of lesions at the nuclear acceptor sites, the complex in those might be able to cause successive mitoses. Estrogen-depend...

journal_title：Medical hypotheses

authors： Litvay M

更新日期：1979-09-01 00:00:00

abstract：:The hypothesis is proposed that: 1. Aflatoxin B1 and polycyclic hydrocarbon carcinogens cause the deletion of genes necessary for the production of a substance required for differentiation of the cell and activated by a steroid hormone possibly a corticosteroid. 2. Such genes could include genes for production of: glu...

journal_title：Medical hypotheses

authors： Money-Kyrle AF

更新日期：1979-09-01 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

authors： Parks RC

更新日期：1979-09-01 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

authors： Altura BM

更新日期：1979-08-01 00:00:00

abstract：:Immunoreactive prolactin in high concentration was detected in the human semen. Therefore, the effect of prolactin on the various metabolic parameters of the human spermatozoa was studied. It was found that prolactin brought about many of the biochemical changes in the spermatozoa which are known to be associated with...

journal_title：Medical hypotheses

authors： Shah GV,Sheth AR

更新日期：1979-08-01 00:00:00

abstract：:Consideration of nine major factors predisposing to cerebral thrombosis, coronary thrombosis or thrombosis in the deep veins of the calf, reveals that these factors all have one thing in common. Estrogen administration, pregnancy, ageing, smoking, infection, trauma, surgery, soft water and winter season are all associ...

journal_title：Medical hypotheses

authors： Clemetson CA

更新日期：1979-08-01 00:00:00

abstract：:Recent investigations on protease inhibitors in articular cartilage have provided new insights into the possible initial lesions of osteoarthrosis. A hypothesis has been formulated based upon an impaired ability of chondrocytes to synthesize protease inhibitors, which leads to loss of matrix integrity and vascular inv...

journal_title：Medical hypotheses

authors： Stephens RW,Ghosh P,Taylor TK

更新日期：1979-07-01 00:00:00

abstract：:For reasons that are not known, the incidence of stomach cancer is declining in most countries. In contrast, cancer of the gastric remnant after partial gastrectomy for peptic ulcer disease seems to be increasing. "Stump cancer" has been claimed to be a separate disease entity and has recently been mentioned as an iat...

journal_title：Medical hypotheses

authors： Domellöf L

更新日期：1979-04-01 00:00:00

abstract：:Pinealectomy leads to increased formation of fibrous tissue in the abdominal cavity, increased skin pigmentation and elevated cholesterol and alkaline phosphatase levels. It also leads to reduced formation and/or action of prostaglandin (PG) E1 and thromboxane (TX) A2. PGE1 plays an important role in enhancing functio...

journal_title：Medical hypotheses

authors： Cunnane SC,Manku MS,Horrobin DF

更新日期：1979-04-01 00:00:00