abstract：:The measurement of urinary neopterin and biopterin may be an important non-specific diagnostic tool. Urinary biopterin has been found to be decreased in parkinsonian patients, and in hyperphenylalanemia as a variant of phenylketonuria. Urinary neopterin has been found to be elevated in numerous conditions. It has been...

journal_title：Medical hypotheses

authors： Rabinoff M

更新日期：1989-08-01 00:00:00

abstract：:Ligaments are generally viewed as passive structural elements. Virtually all treatments for torn ligaments are based upon a structural paradigm. However, there is considerable evidence to suggest that ligaments function as neural sensors to facilitate supportive reflex contractions of muscles. It is hypothesized that ...

journal_title：Medical hypotheses

authors： Brand RA

更新日期：1989-08-01 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

authors： Di Guardo G

更新日期：1989-07-01 00:00:00

abstract：:It is hypothesized that Alzheimer's disease is a human phylogenetic disease which has a common multifactorial pathogenesis in sporadic and familial cases and in Down syndrome, related to a genomic character function G(x). Increments in G(x) accompanied the increased gene expression that sustained brain growth and diff...

journal_title：Medical hypotheses

authors： Rapoport SI

更新日期：1989-07-01 00:00:00

abstract：:The "Gamma Loop" Part I compared a model of rubber tubing to the architecture of the glomerulus with emphasis placed on the observed relationship between the position of the outflow resistance clamp and the perfusion of the loop (1, 2). Part II describes the pressures observed in the different parts of the loop, as we...

journal_title：Medical hypotheses

authors： Gatzek WJ,Wells SC

更新日期：1989-05-01 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

authors： Del Bigio MR

更新日期：1989-04-01 00:00:00

abstract：:Since forced unilateral nostril breathing activates the contralateral brain hemisphere, an animal analogue of this technique could be provided by methylmethacrylate gluing large plastic pellets in either the right or left nostrils in a group of rats. A large number of physiological, pharmacological, and immunological ...

journal_title：Medical hypotheses

authors： Backon J

更新日期：1989-03-01 00:00:00

abstract：:Characteristics of malignant tumors, including anaerobic metabolism and metastases to lung, liver, bone and brain, may permit the enhanced survival of edited parts of the genome during periods of rapid environmental change. Carcinogenesis may be partially analogous to fossilization. ...

journal_title：Medical hypotheses

authors： Fischer K

更新日期：1989-01-01 00:00:00

abstract：:The possibility that Hematopoiesis is under CNS control has been discussed in the literature; but never been conclusively proved at the molecular level. Evidence in the form of antigenic similarity between murine brain and the Stem Cell, and the decline in the number of Stem Cells following the lesioning of the Locus ...

journal_title：Medical hypotheses

authors： Bhander MS

更新日期：1988-12-01 00:00:00

abstract：:Many of the movement disorders seen in psychiatric patients are determined, in large part, by the dynamic balance of dopamine and acetylcholine in the basal ganglia. Gamma aminobutyric acid has effects on various neurotransmitters in the brain including dopamine and acetylcholine and is therefore relevant to a discuss...

journal_title：Medical hypotheses

authors： Menza M

更新日期：1988-12-01 00:00:00

abstract：:Studies on receptor stability suggest that functional conversion of adrenoceptors between alpha and beta can occur in mammalian myocardium due to variations in the environment such as temperature changes, pH or hormonal changes. If adrenoceptors of the respiratory system behave similarly, heat and water loss of airway...

journal_title：Medical hypotheses

authors： Venugopalan CS,Jenkins HJ,Drazen JM

更新日期：1988-12-01 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

authors： Aderka D,Levo Y

更新日期：1988-11-01 00:00:00

abstract：:Genetic diseases of the skeletal system are difficult to accurately diagnose. Changes in the chemical structure of collagen significantly modify the structure of collagen in bone. The ratio of collagen hydration to hydroxylation reflects specific features of the collagen structure. The hypothesis proposes to use this ...

journal_title：Medical hypotheses

authors： Papatheofanis FJ

更新日期：1988-11-01 00:00:00

abstract：:HIV may induce subclinical neuroendocrine dysfunctions in some seropositive patients and these dysfunctions may be one of the co-factors that determine the pathogenesis of AIDS. ...

journal_title：Medical hypotheses

authors： Salomon JC

更新日期：1988-09-01 00:00:00

abstract：:Although it is well established that components of wheat gluten and structurally-related cereal proteins produce intestinal damage in Coeliac disease (CD), the primary defect which confers upon the host susceptibility to these dietary substances remains a mystery. To date, three main hypotheses have been framed to exp...

journal_title：Medical hypotheses

authors： Davidson AG,Bridges MA

更新日期：1988-07-01 00:00:00

abstract：:The Davson-Danielli model of the cell membrane accounted for nearly all the space within it by suggesting that it was composed of structural proteins and lipids; this would leave virtually no space for the large number of enzymes, carriers, antigens, antibodies, and receptors for hormones, transmitters, drugs and toxi...

journal_title：Medical hypotheses

authors： Hillman H

更新日期：1988-07-01 00:00:00

abstract：:The author presents evidence from published papers of research done by numerous investigators that Multiple Sclerosis (MS) is an autoimmune disease, that the target tissue is the myelin sheath which covers the nerve fibers in the brain and spinal cord, that Myelin Basic Protein (MBP) is the antigen or one of the antig...

journal_title：Medical hypotheses

authors： Eidinoff H

更新日期：1988-06-01 00:00:00

abstract：:Keratoacanthomas have many characteristics of squamous cell carcinoma and in the past were interpreted as squamous cell carcinomas. It is now known that these lesions spontaneously resolve if left untreated. In man the lesions occur on sunlight damaged areas or areas exposed to tar. Many of the experimental cancers of...

journal_title：Medical hypotheses

authors： Stone OJ

更新日期：1988-06-01 00:00:00

abstract：:No single dietary factor or ingested substance has been implicated in the aetiology of oesophageal carcinoma especially in high-risk areas of the world. Although not well defined, there is heavy consumption of tannin-rich foods, particularly sorghum, by populations at high risk for carcinoma. The carcinogenic properti...

journal_title：Medical hypotheses

authors： Warner TF,Azen EA

更新日期：1988-06-01 00:00:00

abstract：:A high incidence of sudden unexplained nocturnal deaths has been reported among young Asian males. These deaths are known as Pokkuri in Japan, Bangungut in the Philippines and Sudden Unexplained Nocturnal Death in the United States. Post mortem analysis has demonstrated cardiac conduction defects in many of the victim...

journal_title：Medical hypotheses

authors： Melles RB,Katz B

更新日期：1988-06-01 00:00:00

abstract：:Vasogenic brain edema occurs as a result of a diverse spectrum of central nervous system pathology. The fundamental physiologic abnormality of vasogenic brain edema is an increase in cerebral capillary permeability. It is hypothesized that the recent development of new, potent, synthetic vasopressin antagonists will m...

journal_title：Medical hypotheses

authors： Weinand ME

更新日期：1988-05-01 00:00:00

abstract：:In this study, after having formed the hypothesis of the existence of a "Compensating Center" (cerebral?) that orders the increase in the function of one kidney in case of deterioration of its congener, we propose two mechanisms that may lead to the activation of this Center. The first may be the difference between th...

journal_title：Medical hypotheses

authors： Collard M

更新日期：1988-03-01 00:00:00

abstract：:Evidence exists for the presence of a neuro-anatomy that can produce cardiac vasospasm. Recent experimental and clinical data suggest that this neuro-anatomic mechanism can be activated by behavioral events in the psycho-social surround of the patient with coronary artery disease. I hypothesize that this mechanism can...

journal_title：Medical hypotheses

authors： Natelson BH

更新日期：1987-12-01 00:00:00

abstract：:The Aquatic Ape Theory claims that human ancestors once lived in a semi-aquatic habitat. Some human diseases might be explained by our aquatic past. Such problems include hyperventilation, periodic breathing, laryngo- and bronchospasm, vasomotor rhinopathy, seborrhea, dandruff, male pattern alopecia, rhinophyma, osteo...

journal_title：Medical hypotheses

authors： Verhaegen MJ

更新日期：1987-11-01 00:00:00

abstract：:The essential trace element selenium is known to be capable of reducing the toxicity of heavy metals like cadmium(II), mercury(II) and silver(I). One mechanism by which this occurs is through the formation of an inert metal selenide like silver selenide. It is not clear why selenide should react in the body preferenti...

journal_title：Medical hypotheses

authors： Nuttall KL

更新日期：1987-10-01 00:00:00

abstract：:Bovine serum albumin and human serum transferrin modified by the water soluble carbodiimides N-ethyl-N'-(3-dimethyl propylamino) carbodiimide (CDI) or N-ethyl-N'-(3-trimethyl propylammonium) carbodiimide (Me+CDI) to yield N-acylurea proteins bind pBR322 DNA reversibly showing electrostatic and non-electrostatic compon...

journal_title：Medical hypotheses

authors： Ariatti M,Hawtrey AO

更新日期：1987-09-01 00:00:00

abstract：:The results described in this paper partially agree with the hypothesis that mesenteric lymph nodes (MLN) of depleted growing rats recover their antigen specific determinants after the oral administration of 20% casein for 5-9 days following the time course of antigen dependent changes observed in virgin lymph nodes. ...

journal_title：Medical hypotheses

authors： Langini SH,López MC,Slobodianik NH,Sanahuja JC,Rio ME,Roux ME

更新日期：1987-08-01 00:00:00

abstract：:A consistent accumulation of experimental evidence, most of it published long ago, clearly shows that a constant consequence of the immune response elicited by the Koch bacillus is that the individual becomes susceptible to be injured or killed by the tuberculous antigen, which is totally innocuous to the virgin subje...

journal_title：Medical hypotheses

authors： Rivarola AJ

更新日期：1987-08-01 00:00:00

abstract：:In normal and hypertensive subjects, many stimuli which increase ACTH secretion also increase blood pressure and conversely, many drugs which decrease ACTH secretion also decrease blood pressure. We postulate that the hypothalamopituitary adrenal axis plays a role in blood pressure regulation in normal and hypertensiv...

journal_title：Medical hypotheses

authors： Whitworth JA,McLachlan-Troup N,Scoggins BA

更新日期：1987-07-01 00:00:00

abstract：:Cell-mediated immunity is generally regarded as the essential factor in recovery from measles infection. In other viral infections humoral immunity has been considered a critical factor when antibody titres were correlated with outcome or when serum therapy proved protective. A review of available studies of severe-to...

journal_title：Medical hypotheses

authors： Aaby P,Bukh J,Hoff G,Lisse IM,Smits AJ

更新日期：1987-07-01 00:00:00

abstract：:The activity of the lithium ion against DNA type viruses is explained by its competition with magnesium ions. Magnesium acts as the cofactor of the enzymes responsible for the replicative building of viral proteins and nucleosides. When lithium replaces magnesium, it appears to render the polymerase enzymes impotent. ...

journal_title：Medical hypotheses

authors： Bach RO

更新日期：1987-06-01 00:00:00

abstract：:Cancer's random, reversible, unstable transitions to "normal" structures imply their functional relation. Similar random, continuous, reversible oncogene "mutational transformation" also lacks a consistent hybrid. Positing cancer's "mutationally altered genotype" leads to medically foreign causes, qualities, inducers,...

journal_title：Medical hypotheses

authors： Kharasch JA

更新日期：1987-06-01 00:00:00

abstract：:To explain why subjects vary in body fat content despite similar nutrient intake and physical activity, a hypothesis is proposed invoking individual variability in the potentially vast quantities of energy utilizable for such biomechanical functions as cellular motility processes, and for protein mobility. The collect...

journal_title：Medical hypotheses

authors： Roncari DA

更新日期：1987-05-01 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

authors： Reid GM

更新日期：1987-03-01 00:00:00

abstract：:The weight of available evidence suggests that leukaemogenesis is a multi-step, complex process. Since there are different types of leukaemia, it seems likely that a variety of distinct molecular mechanisms are involved, arising from different combinations of genetic defects. It is not therefore surprising that studie...

journal_title：Medical hypotheses

authors： Francis GE

更新日期：1987-03-01 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

authors： Raikov ZD,Christova-Georgieva NI,Raikova ET

更新日期：1987-01-01 00:00:00

abstract：:In both African AIDS populations and homosexual populations outside of Africa, a high incidence of syphilis and multiple exposures to infectious diseases results in frequent, often abusive use of antibiotics. Epidemiological evidence exists for chemical immunosuppression resulting from antibiotics and other prescribed...

journal_title：Medical hypotheses

authors： McKenna JJ,Miles R,Lemen D,Dunford SA,Renirie R

更新日期：1986-12-01 00:00:00

abstract：:The function of the gallbladder is questioned in a hypothesis postulating that all bile which enters this reservoir is totally absorbed to the liver and none of it flows back to the cystic duct and duodenum. Cholecystokinesis is believed to increase and maintain a gradient of intravesical pressure which increases the ...

journal_title：Medical hypotheses

authors： Al-Hilli F

更新日期：1986-10-01 00:00:00

abstract：:In this paper I hypothesize that a woman through her vagina absorbs sufficient quantities of the prostaglandins from her partner's semen, to affect her mood. The vagina appears to have an active transport mechanism which readily absorbs the hormones found in seminal plasma. The seminal secretions include estrogens, F....

journal_title：Medical hypotheses

authors： Ney PG

更新日期：1986-06-01 00:00:00

abstract：:Analysis of the age distribution of cancers of the uterus reveals three clearly distinctive types: early- and late-onset cancers of the cervix and one form of cancer of the corpus. England and Wales mortality data are available for the three types combined from 1911; cancers of the cervix and corpus have been listed s...

journal_title：Medical hypotheses

authors： Burch PR

更新日期：1986-05-01 00:00:00