1. H. U. MAY:
Facts and hypotheses concerning the causal or symptomatic therapeutic use of currents in oncology - direct and indirect effects upon cells, tissues and the whole organism.
The possibilities to optimize the efficacy of currents by variation or fixation of their parameters in dependence on the intended therapeutic purpose.

2. Introduction concerning the history of therapeutic use of currents
for the treatment of tumor patients

3. Already in the middle of the 18th century the two German physicists HAUSEN & WINKLER tried with their electrical machine, based on friction, to treat tumors.
After the spreading of the inventions of GALVANI ( ) and VOLTA ( ) since the 19th century electricity has been used more frequently to treat tumor patients.
Not only symptomatic treatments for pain relief but even mainly causal treatments consisting in trials to destroy the tumors were usual.

4. electrolytic destruction of tumors
In standard dictionaries and encyclopedias from the second part of the 19th century and the first decades of the 20th century you can find very much more general information and special description of the
electrolytic destruction of tumors
by direct currents
under the catchword “electrotherapy” than in the second part of the 20th century and today.

5. Until today the galvanic current as the primarily preferred current in the causal treatment of tumor patients is used in various clinics and hospitals, for instance in Austria according the recommendations of PEKAR given in his 3 books about the percutaneous galvanotherapy in cases of tumors, published since 1988, basing on experiences since 1977.
Also in Sweden NORDENSTRÖM used direct currents (DC) for the treatment of tumors, basing on his theory of “biologically closed electric circuits” (1983). The DC method requires needles to be placed inside the tumor. It is an invasive method. I know, that in Germany, Denmark, Italy and China in special hospitals this invasive DC method is in use, however in Germany without public advertising.

6. Just before the 1st world war VERAGUTH & SEYDERHELM (1913 and 1914, Zürich and Straßburg) found the tendency of various direct and alternating currents, applied as whole body treatments in a “4 cell bath”, to reduce the number of white blood cells in leukemia patients.
The histories of RIFE’s work in the United States and independently from him of LAKHOVSKY’s work in France concerning cancer treatment using alternating electrical fields of various frequencies are well described in the
“RIFE Report”, written by Barry LYNES and published 1987,
and
in LAKHOVSKY’s “Secret of life”, published the first time 1929.

7. “Tone frequency currents”,
a not very precise term introduced by KOEPPEN 1935 in his paper “Tone frequency currents in medicine”, has been changed 1944 by the German physiologist GILDEMEISTER in Leipzig into the term “middle frequency currents” (MF), defined by the frequency range between 1 kHz and ca. 100 kHz.
GILDEMEISTER and his pupil SCHWARZ, furthermore WYSS in Zürich, investigated the very interesting and special advantageous physiological properties of these MF currents, however
more from the standpoint of physiology as a theoretical field of medicine than with a practical therapeutic view.
Consequently, they did not take into account any thoughts concerning the effects of MF upon tumors.

8. Without any knowledge about the publications concerning MF currents
published mainly in journals of physiology
the electronic engineer Doctor NEMEC
from Austria in the late 40s up to 1952 used
MF currents between 4000 and 4100 Hz
for his invention of “interferential current”,
realized by the company NEMECTRON as the
“Nemectrodyn” machine.

9. Dr. Hanna FRESENIUS, a female general practitioner in Steinau in Hessen (Germany) was one of the first medical doctors, who experienced the wide range of indications of the new equipment including pain relief in cancer patients.
Additionally she observed in the majority of the
patients not only pain relief but additionally a general increase of their condition, of their quality of life, in some of the patients even an inhibition of tumor growth or a shrinking of the tumor.

10. After several years of successful treatments of cancer patients with these interferential currents other medical doctors, competitors which were not familiar with the new treatment, suggested a damning of the new electrotherapeutic method in cancer patients by the regionally responsible professional instance.
Dr. Hanna FRESENIUS was not agree. She moved with her practice to Bavaria and pursued successfully to treat cancer patients but more secretly.

11. Only the animals of the other group developed liver tumors.
Convinced by the beneficial effects of interferential currents in cancer patients Dr.Hanna FRESENIUS initiated animal experiments together with the University of Freiburg. She fed two groups of rats with the carcinogeneous “butter yellow” (dimethylaminoazobenzol). One group was treated nearly everyday with interferential current.
Only the animals of the other group developed liver tumors.
In this time I was
as a neurologist, physiologist and pharmacologist with long experiences in biomedical engineering and biocybernetics in the University of Karlsruhe
a member of the medical-scientific research and development department of Nemectron in Karlsruhe, responsible for all theoretical and practical medical questions.

13. Prof. Ferdinand SCHMIDT
With monetary, technical and scientific support by Nemectron and with prepared rats from
Prof. Ferdinand SCHMIDT
(Institute for Preventive Oncology of the University Heidelberg-Mannheim) Hanna FRESENIUS started new series in rats suffering from chemically induced subcutaneous tumors.
When the tumors were detected early enough and the diameter of the tumor was not larger than 8 to 10 mm, the treatments with interferential current (carrier frequencies around 4000 Hz) leaded to a shrinking and finally to a disappearance of the tumors:

14. Larger tumors did not disappear
Larger tumors did not disappear. They sustained to grow, partially up to the size of apples, and the tumors seemed to cause intensive itch sensations.
The rats injured the skin in the region of the subcutaneous tumor and finally the tumor itself.
The initially solid tumor had changed to a cyst filled with a fluid. The cyst opened by the teeth of the rat collapsed, was infected, and the rat died within hours or few days.
These kinds of animal experiments could not be continued because of a new law concerning the use of animals for scientific research.

15. Therefore, with financial support by the German Ministry for Research and Technology in the laboratories of Nemectron and 4 institutes of the medical faculties of various universities and scientific centers (Freiburg, Aachen, German Cancer Research Center Heidelberg, German Nuclear Research Center Karlsruhe) investigations concerning the influences of middle frequency currents were carried out with normal and various tumor cells.
In 2 doctor dissertations (M. NOSZVAI-NAGY, Karlsruhe, 1993/94, W. PETROW, Aachen, 1988), in lectures and papers on a symposium in Karlsruhe, 1990, and a German Cancer Congress in Hamburg 1994 the results were presented.

16. The most important results were:
Some kinds of tumor cells in vitro can be killed during the application of middle frequency currents (with frequencies in the lower MF range, mainly Hz); they suddenly disappear by destruction of their cell membrane. Abnormal large cells appear to be more sensitive. However, not all types of the tumor cells had the same sensitivity.
MF currents can facilitate the growth of normal fibroblasts in dependence on the strength of the electric field.

17. MF currents can influence the adenylcyclase resulting in changes of the intracellular cAMP formation, that means MF currents can have hormone-like effects. This corresponds with the results of other authors.
MF currents can cause an increase of the number and the size of mitochondria.
Alternating electric fields within the MF range facilitate and consequently accelerate the diffusion along the lines of the electric fields – in the two opposite directions. This result was predictable due to physical, electrochemical and statistical considerations.

18. The cell culture research program supported by the German government unfortunately could not be continued because of monetary restrictions.
Additional psychological problems between the supervisory board and the leading management of Nemectron caused repetitive changes within the top management team.
Finally the owner of Nemectron, the margrave of Baden, had to sale his company.
After few years the ownership changed again.

19. My own experiences with interferential current (MF between 4000 and 4100 Hz) as a neurologist – not an oncologist – in tumor patients were different. Some examples:
Tumor Result
Astrocytoma No success
Glioblastoma No success
Chordoma Stop of the growth of the tumor for many years, but not destruction
Patient was found dead in his bed in the morning after a long evening of a festival during his vacation in Spain.

20. Tumor Result Melanoma with metastases in the central nervous system,
earlier and larger in the spinal
cord resulting in paraplegia, Slowing of growth
later and smaller in the medulla
oblongata causing dizziness
and circulatory disturbances Not treatable
In general: Significant pain relief, reduction of the analgesic drugs, enhancement of the quality of life,
6 months prolongation of the survival time, life at home with his family instead of an immediate death under high dosages of narcotics at the intensive care station of the Dermatological department of the University of Köln

21. Tumor Result
The same patient suffered since All the lipomas disappeared within
his early childhood from multiple few weeks after the begin of the benignant tumors of the fatty daily electrical treatments.
tissue, lipomas, disseminated to
the whole body, rump and limbs.

22. 1981 THIESS & DIETRICH in Heilbronn and 1994 KUKLINSKI in Rostock
also reported conspicuous beneficial however finally not healing effects in tumor patients treated with interferential currents.
In KUKLINSKI’s study a group of 37 patients received interferential current (IFC) treatment twice per day. Modulation frequency was scanned between 0.5 and 150 Hz.
Results:
Partial remissions were observed in patients with superficial cutaneous metastases or ulcerative mammary carcinomas (n=3).
Tumor progression was lowered in 2 patients with pancreatic carcinomas.
Responses of tumors of the pulmonary and bowel tracts were generally poor.
In many cases, a considerable reduction of inconveniencies associated with the disease was noted (e.g. reduction of pain, rapid improvement of physical condition, etc.)
Conclusion: In order to improve the response of malignant tumors, particularly of deep-lying tumors, hitherto existing parameters and strategies of IFC-treatment seem to require revision.

23. Taking into account the fact that
in cell culture experiments and in patients
the desired effects of MF currents
seemed to be dependent
on the type of the tumor,
the question arose:
Is the sensitivity
of the special type of tumor cells
dependent on the frequency of the MF current?

24. This was the origin of my idea to use the modulation of the frequency in a mathematically continual way over a wide range in accordance with the technical and legitimate possibilities, avoiding arbitrary irregular and to large steps and to minimize the differences between the theoretically optimum frequency and the really generated frequency.

25. Additionally, the electrical, neurophysiologic and psychophysical possibilities concerning the intensities of the applied frequency-dependent currents should be optimized. The distance to local and systemic tolerance limits should be as large as possible to maximize the therapeutic width.

26. Since 2000 my idea of simultaneous modulation of frequency and amplitude (SimulFAM®) adaptable to the individual and local frequency-dependent threshold of sensation is realized and available until now in Europe and Asia as HiToP®, High Tone Power Therapy (MAY, 2002 and 2004).

27. The manufacturer is the company gbo, “Gerätebau Odenwald”, in Rimbach, manufacturing and distributing too still traditional low-frequency and interferential electrotherapy units of Siemens.
The frequency is modulated in quarter tone steps between 4096 and Hz.
With 73 frequencies (“tones” in the high tone and low ultrasound ranges) 3 octaves are covered.
The maximum distance to a theoretically optimum frequency or to a frequency in an harmonic relation to this optimum frequency is 1/8 tone step.

28. Facts and hypotheses concerning the causal or symptomatic therapeutic use of currents in oncology – direct and indirect effects upon cells, tissues and the whole organism

29. Causal therapeutic use
Facts:
Some facts as results of experimental studies are already itemized in the introduction under number 1 – 5.

30. Hypotheses
regarding inhibitory effects of un-modulated, amplitude-modulated and simultaneously frequency- and amplitude-modulated middle frequency currents upon tumor growth
Direct effects of currents upon transformed cells
Changes and renormalizations of pathological processes in tumor cells, caused by stimulatory and multi-facilitatory (electro-biochemical, non-stimulatory) effects
induced by electrically triggered molecular conformation changes within the cell membrane, that means a kind of simulation of hormone effects, resulting in the (normalization of) formation of intracellular second messengers, for example cyclic AMP

31. induced by capacitively coupled effects through the cell membrane into the intracellular space (cytosol), through the outer mitochondrial membrane into the intermembrane space and through the inner mitochondrial membrane into the mitochondrial matrix, for instance
multi-facilitatory effects upon the metabolism:
facilitation of diffusion processes
facilitation of enzymatically mediated processes of the intracellular metabolism

32. facilitation of enzymatically mediated processes of the intracellular metabolism, basing on the increase of the kinetic energy of molecules involved in metabolic processes, lowering the differences to the required activation energy, the increase of the probability of the events of the important accidental meetings between enzyme and substrate, the increase of the probability of the events of the important accidental meetings between enzyme and substrate in the correct position (according to DAFFORN & KOSHLAND: A. DAFFORN & D. E. KOSHLAND jr., Biochem. Biophys. Res. Commun. 52, 780, (1973) )

33. direct influences upon the transport mechanisms of protons and electrons within the inner membrane of the mitochondria
preference of the aerobic metabolic pathways instead of the anaerobic glycolysis

34. induced by direct influence upon the intercellular communication ("cleaning effect" concerning ion channels including gap junctions), resulting in
partial or total recovery of the disturbed electrical and chemical communication between tumor cells mutually and between tumor cells and the cells in the adjacent tissue (one step to a redifferentiation)
partial or total recovery of the disturbed metabolic cooperation between tumor cells mutually and between tumor cells and the cells in the adjacent tissue (a second step to a redifferentiation)
partial or total recovery of the disturbed functional coordination between tumor cells mutually and between tumor cells and the cells in the adjacent tissue (a third step to a redifferentiation)

35. partial or total recovery of the disturbed probably electrically mediated control of the target of the normal topographic-anatomical and histological structure of the referred body region
(last step and desired main goal of redifferentiation)

36. Over-stress of the pathologically changed metabolism of the tumor cell,
caused by frequently generated depolarization and the required repolarisation
(stimulatory effect, possible with supra-threshold intensities only)

37. Indirect effects
Primary effects:
Activation of cells of the immune system
by means of sustained depolarization (non-stimulatory effect) of the involved cells of the immune system, causing an increase of cell division rates of normal cells which are able to increase their mitotic activity if such increase is required,
by means of cyclic AMP formation (non-stimulatory multi-facilitatory and stimulatory effect) within the involved cells of the immune system,
by facilitation of intercellular communication (non-stimulatory multi-facilitatory effect)

38. by an increase of generation of natural killer cells (NKC), observed by KUKLINSKI as a result of stimulatory effects, probably possible with non-stimulating currents too.

39. Enhancement of the efficacy of the activity of the cells of the immune system in the neighborhood of the tumor by means of the equilibration effect upon concentration differences normalizing the pH values. Due to the preference of the anaerobic metabolism in tumor cells with an increase of lactic acid production the pH is lowered in the extracellular space within the tumor and in it’s neighborhood; the lowered pH is impairing the function of the cells of the immune system.

40. Partial or total recovery of the disturbed communication between the “asocial” cells of the tumor takes place by means of the electrochemical shaking effect.
Stimulation of the sympathetic nervous system (by stimulatory effects) o release of transmitters (mainly nor-epinephrine) from the varicosities of the sympathetic nerve endings o reduction of inflammatory tissue changes in the neighborhood of the tumor o activation of receptors within the cell membranes involved in the tumor growth inhibiting processes

41. Secondary effects:
The activation of cells of the immune system could result in the following secondary effects:
Increase of phagocytosis Increase of the release of mediators acting as inhibitors of tumor growth or even as tumor cell destroying agents (for instance tumor necrosis factor)

42. Symptomatic therapeutic use
The symptomatic therapeutic use concerns mainly
1. pain relief
edema reduction
prevention of venous thromboses
4. reduction of the required dosage of pain relieving and other drugs with reduction of their side effects
5. inhibition of cachexia by b-mimetic effects
6. general enhancement of the quality of life

43. The possibilities to optimize the efficacy of currents by variation or fixation of their parameters in dependence on the intended therapeutic purpose
Pain relief Five pain relieving effects are available: Distribution and thinning of mediators of pain and inflammation “Real nerve block” by reversible sustained partial depolarization, “plateau effect” ”Pseudo block” associated with “tea”, transient excitatory activity Counter-irritation (GAMMON & STARR, 1941) and b -endorphin release In cases of painful swellings indirect causal pain relief by edema reduction

44. The following parameters should be preferred: 1
The following parameters should be preferred: 1. High intensities during blocks with higher fixed frequencies (max Hz) or SimulFAM along the threshold curve, SimulFAMi 2. Maximum tolerable intensity with higher fixed frequencies (max Hz) 3. High intensity with higher fixed frequencies (max Hz) 4. SimulFAMX with crossing of the threshold curve, frequency of modulation: 100 Hz 5. SimulFAMX with crossing of the threshold curve, frequency of modulation: 10 Hz

45. 2. Edema reduction (in general) and prevention of venous thromboses a
2. Edema reduction (in general) and prevention of venous thromboses a. caused by stimulation of sympathetic fibers b. (in lower legs an feet) caused by activation of the “muscle pump” c. caused by reversible sustained partial depolarization of the smooth muscles of the lymphatic vessels and the blood vessels, “plateau effect” The following parameters should be preferred: a. SimulFAMX with crossing of the threshold curve, frequency of modulation 10 Hz b. SimulFAMX with crossing of the threshold curve, frequency of modulation 0.3 Hz c. High intensity with higher fixed frequencies (max Hz)

46. The therapeutically desired effects mentioned above concerning reduction of drugs and their side effects, inhibition of cachexia and general enhancement of the quality of life
are present in all cases of parameter selection.
They do not require special parameters.

47. Selected Literature: d‘ARSONVAL, A.:
Action physiologique des courants alternatifs.
C. R. Soc. Biol. Paris 43, 453 (1891)
Recherches d‘ électrothérapie. La voltaisation sinusoidale.
Arch. Physiol. norm. pathol. 24, 69 (1892)
Effects physiologiques de la voltaisation sinusoidale.
Arch. Physiol. norm. pathol. 25, 387 – 391 (1893)
Action physiologique des courants alternatitifs à grande fréquence.
Arch. Physiol. norm. pathol. 25, 401 – 408 (1893)

48. d‘ARSONVAL, A.:
Production des courants de haute fréquence et de grande intensité: leurs effects physiologiques.
Comptes Rendus de séances et memoires de la. Société de Biologie et de ses filiales. Paris 45, (1893)
Influence de la fréquence sur les effect physiologiques des courants alternatifs.
L’industrie électrique 2, (1893)
Action physiologique et thérapeutique des courants à haute fréquence.
Ann. Electrobiol. 1, 1 (1898)

49. BOWMAN, B. R.:
Electrical block of peripheral motor activity.
A dissertation submitted to the Faculty of Electrical Engineering
Edvard Kardelj University of Ljubljana, Yugoslavia
In partial fulfilment of the requirements for the degree
Doctor of Science (Electrical Engineering)
May 1981
Conducted at Rancho Los Amigos Rehabilitation Engineering Center,
Rancho Los Amigos Hospital, Downey, California
BRIGHTON, C. T., & P. F. TOWNSEND:
Increased cAMP production after short term capacitively coupled stimulation of bovine growth plate chondrocytes.
Transactions of the 6th annual meeting of the Bioelectrical Repair and Growth Society (BRAGS), vol.VI, p. 43, Oct. 19th – 22nd 1986

50. BROMM, B., & H. LULLIES:
Über den Mechanismus der Reizwirkung mittelfrequenter Wechselströme auf die Nervenmembran.
Pflügers Arch. 289, 215 – 226 (1966)
CLARK, H. R.:
The cure of all cancers
San Diego, CA, USA: New Century Press 1993
The cure for all diseases
San Diego, CA, USA: New Century Press 1995

51. American Cancer Society
CONE, C. D, Jr.:
Control of cell division by the electrical voltage of the surface membrane
Molecular Biophysics Laboratory, Langley Research Center, National Aeronautics and Space Administration, Hampton, Virginia 23365
Presentation to
The 12th Annual Science Writers Seminar, San Antonio, Texas, March ,
American Cancer Society
Unified theory on the basic mechanism of normal mitotic control and oncogenesis.
J. theor. Biol. 30, 151 – 181 (1971)

52. CONE, C. D., Jr.:
The role of the surface electrical transmembrane potential in normal and malignant mitogenesis.
Annals of the New York Academy of Sciences 238, 420 – 435 (1974)
CONE, C. D. Jr., & C. M. CONE:
Induction of mitosis in mature neurons in central nervous system by sustained depolarization.
Science 192, (1976)
CONE, C. D. Jr. & M. TONGIER:
Contact inhibition of division: Involvement of the electrical transmembrane potential.
Cell Pysiology 82, 373 – 386 (1973)
DAFFORN, A. & D. E. KOSHLAND jr.: Biochem. Biophys. Res. Commun. 52, 780, (1973)

53. DALZIEL, C. F.:
Electric shock.
Advances in Biomed. Engineering 3, 223 –248 (1973)
Dangerous electric currents
AIEE Transactions 65, 579 – 584 (1946)
The threshold of perception currents.
AIEE Transactions 73, 990 – 995 (1954)
DALZIEL, C. F., J. B. LAGEN & J. L. THURSTON:
Electric shock
AIEE Transactions 60, 1073 – 1078 (1941)

54. DALZIEL, C. F., E. OGDEN & C. E. ABBOTT:
Effect of frequency on let-go currents.
AIEE Transactions 62, 745 – 749 (1943)
DUDEK, J.:
Terapia energotonowa.
Ogólnopolski Przeglad Medyczny (OPM) 11/2002, 22
Katowice: Elamed® Wydawnictwo 2002
EHMEN,G.:
Diffusionsbeeinflussung im Knochengewebe durch Interferenzstromverfahren.
Diplomarbeit, Fachhochschule Wilhelmshaven, 1990

55. FRESENIUS, Hanna:
Krebsfürsorge (Letter to th editors)
Selecta 22, 329 – 331 (1980)
(Heft 4, 28. Jan. 1980)
Niederfrequenter Interferenzstrom gegen maligne Entartung
Ärztliche Praxis 37, 2529 (1985)
Was das Leben lebendig macht.
Erzählungen aus Steinau an der Straße
pp. 266 – 269: Experiences with interferential therapy in cancer patients.
Marquartstein, Bavaria, Germany: Th. Breit 1986

56. GAMMON, G. D., & I. STARR:
Studies on the relief of pain by counter-irritation.
J. clin. Invest. 20, 13 – 21 (1941)
GEDDES, L. A., L. E. BAKER, A. G. MOORE & T. W. COULTER:
Hazards in the use of low frequencies for the measurement of physiological events by impedance.
Med. & biol. Engineering 7, 289 – 296 (1969)
GILDEMEISTER, M.:
Untersuchungen über die Wirkung von Mittelfrequenzströmen auf den Menschen.
Pflügers Arch. 247, 366 –404 (1944)
GREEN, R. T.:
The absolute threshold of electric shock.
Brit. J. Psychol. 53, 107 – 115 (1962)

57. HANSJÜRGENS, A., & H. U. MAY:
Elektrische Differentialtherapie - EDiT®
Karlsruhe: Nemectron 1990
HAUSER-TILLMANN, Hildegard
Dr. med., M. D., Frauenärztin, Gynecologist, in D Markdorf, Gutenbergstr. 1a):
Personal communication:
Arzt-Bericht vom 21. Oktober 1997 über eine von März bis September 1997 durchgeführte erfolgreiche Hochton-Behandlung einer Patientin mit Gallensteinen und häufigen Koliken.
Clinical report, dated from October 21st 1997 concerning a successful high tone therapy treatment of a female patient with gall-stones and frequent bilious colics over a period of seven months (March – September 1997)
HÖNES, R. D.:
Der Einfluß von Interferenzstrom auf das Wachstumsverhalten von Zellkulturen.
Inauguraldissertation. Freiburg i. Br. 1983

58. HUMPERT, P. M., G. RUDOFSKY, M. MORCOS, A. BIERHAUS & P. P. NAWROTH:
Hochtontherapie zu Behandlung schmerzhafter Neuropathie bei Typ 2 Diabetikern verbessert die mikrovaskuläre Endothelzellfunktion
High tone therapy for the treatment of painful neuropathy in type 2 diabetic patients improves the microvascular endothelial function. Poster and Abstract.
41. Jahrestagung der Deutschen Diabetes-Gesellschaft, Leipzig, 24. – 27. Mai 2006, Diabetologie und Stoffwechsel 2006, DOI: /s
JAMAKOSMANOVIC, A., & W. LOEWENSTEIN:.
Intercellular communication and tissue growth III. Thyreoid cancer.
J. Cell Biology 38, (1968)

59. JOOS, U., H. U. MAY & C. MITTERMAYER:
Stimulation of fibroblast proliferation by means of electrical current.
8th Int. Conf. Oral Surg., Berlin, June 25 – 30, 1983
KEILHOLZ, L., U. RANDOLL, R. SAUER & E. STEINHÄUSER:
Supportive interferential current therapy in the treatment of advanced head and neck tumors.
21. Deutscher Krebskongreß, Hamburg, März 1994
21th National Cancer Congress of the German Cancer Society
Supplement to Journal of Cancer Research and Clinical Oncology Vol. 120, (1994)
KNEDLITSCHEK, G., K. F. WEIBEZAHN & H. DERTINGER:
Zelluläre Wirkungen des Interferenzstromes
Supplement to Journal of Cancer Research and Clinical Oncology Vol. 120, (1994)

60. KOEPPEN, S.:
Über die Anwendung von Tonfrequenzströmen in der Medizin.
Verhandlungen der Deutschen Gesellschaft für innere Medizin, München, 47, 458 – 460 (1935)
KOMITOWSKI, D., & V. EHEMANN:
Der Einfluß von elektrischen Mittelfequenz-Wechselfeldern auf normale Fibroblasten, normale und transformierte Hepatocyten sowie normale Nierenepithelzellen des Rattenkänguruhs.
The influence of alternating middle-frequency electric fields upon fibroblasts, normal and transformed hepatocytes and normal epithelial kidney cells of the rat kangaroo
Vorträge, gehalten über am Deutschen Krebsforschungszentrum in Heidelberg durchgeführte Untersuchungen auf einem Symposion zum Thema „Tumoren und Ströme“ am 16. Mai 1990 in Karlsruhe
Lectures about the results of a study carried out in the German Cancer Research Center Heidelberg, presented during a Symposion “Tumors and Currents” in Karlsruhe, Germany, May 16th 1990

61. KORENSTEIN, R., D. SOMJEN, H. FISCHLER & I. BINDERMAN:
Capacitively pulsed electric stimulation of bone cells. Induction of cyclic-AMP changes and DNA synthesis.
Biochimica et Biophysica Acta 803, 302 – 307 (1984), Elsevier Science Publishers
LAABS, W. A., E. MAY,
K. D. RICHTER, H. J. HÖHLING, J. ALTHOFF, P. QUINT & A. HANSJÜRGENS:
Knochenheilung und dynamischer Interferenzstrom (DIC) –
Erste vergleichende tierexperimentelle Studie an Schafen.
Teil I: Experimentelles Vorgehen und histologische Ergebnisse.
Teil II: Physikalische und chemische Ergebnisse.
Langenbecks Arch. Chir. 356, 219 – 229 u. 231 – 241 (1982)
LANGMAN, L., & H. S. BURR:
A technique to aid in the detection of malignancy of the female genitale tract.
Am. J. Obst. & Gynec 57, 274 – 281 (1949)

62. Permeability of membrane junctions
LOEWENSTEIN, W.:
Permeability of membrane junctions
In: Conferenc on biological membranes: recent Progress.
Annales New York Academy of Sciences 137, 441 – 472 (1966) LOEWENSTEIN, W., & Y. KANNO:
Intercellular communication and the control of tissue growth:
Lack of communication between cancer cells
Nature 209, 1248 – 1249 (1966)
LOEWENSTEIN, W., & Y. KANNO:
Intercellular communication and tissue growth I. Cancerous growth.
J. Cell Biology 33, 225 – 234 (1967)
LOEWENSTEIN, W., & R. D. PENN:
Intercellular communication and tissue growth II. Tissue regeneration.
J. Cell Biology 33, (1967)

63. JAMAKOSMANOVIC, A., & W. LOEWENSTEIN:.
Intercellular communication and tissue growth III. Thyreoid cancer.
J. Cell Biology 38, (1968)
JOOS, U., H. U. MAY & Ch. MITTERMAYER:
Stimulation of Fibroblast proliferation by mean of electrical current
Presentation (Poster) to the 8th International Conference on Oral Surgery,
Berlin, June 1983
KUKLINSKI, B.:
Interferential current therapy of tumors: Preliminary results
21. Deutscher Krebskongreß, Hamburg, März 1994
21th National Cancer Congress of the German Cancer Society
Supplement to Journal of Cancer Research and Clinical Oncology Vol. 120, (1994)
LAKHOVSKY, Georges:
The secret of life.
London, 152, Landor road, Stockwell, S.W.9.: 1951

64. LYNES, B.:
The cancer cure that worked! Fifty years of suppression. The RIFE report.
Queensville, Ontario, Canada, Marcus Books, 1st printing March 1987, 6th pr. October 1997
MAY, H. U.:
Simultaneous modulation of frequency and amplitude of middle frequency currents between high tone and low ultrasound range – applied physiology for differentiated electrotherapy concerning the distinction and specific proportional mixture of stimulatory and non-stimulatory (metabolic and/or blocking) effects.
In: Abstracts of the Joint Meeting of
The Physiological Society, Scandinavian Physiological Society and
Deutsche Physiologische Gesellschaft (81st Annual Meeting)
15-19 March 2002, Tübingen, Germany
Europ. J. Physiol. 443, Suppl., (P 53-9) 363 (2002)

65. MAY, H. U.:
Extremely comfortable trancutaneous electrical stimulation of nerves – including motor and sympathetic fibres – by simultaneous modulation of frequency and amplitude of middle frequency currents.
In: Abstracts of the 83rd Annual Meeting
Deutsche Physiologische Gesellschaft
14-17 March 2004, Leipzig, Germany
Europ. J. Physiol. 447, Suppl.1, (P 35-11) S156 (2004)
High Tone Frequency Power Therapy with HiToP® in general and particularly in cases of painful conditions of the musculo-skeletal system in special consideration of low back pain,
including a part of the results of a clinical study carried out and evaluated by E. RHADES & B. SCHNEIDER
Paper presented at the
4th Annual International Congress of Egyptian Society of Back Pain, Cairo, Egypt, April 2004

66. MAY, H. U.:
High Tone Power Therapy
Scientific development to optimise the physical, physiological and therapeutic effects of middle frequency currents
Paper presented at the
6th Annual International Congress of Egyptian Society of Back Pain, Cairo, Egypt, 19 – 20 April 2006
MAY, H. U., & A. HANSJÜRGENS:
Elektrische Differentialtherapie1
Electric Differential Therapy1
3 Posters (56 cm x 43 cm - in four languages), prepared for the
Medical center of the Olympic Village during the Olympic Games in Seoul 1988:
1) Electric Differential Therapy (in general),
2) Pain Management with EDiT
3) Treatment of edema usin EDiT
Karlsruhe, Nemectron 1988

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