For the past fifteen years, our laboratory has carried out metabolic studies in the field of nutritional biochemistry. Using animal models of diabetes, breast cancer and colon cancer, we have investigated the therapeutic properties of numerous compounds for use as nutraceuticals. In addition, our work has focused on the mechanisms by which these compounds induce physiological and morphological changes in the body.
Our most recent research has beenin the following areas: Evaluating dietary models of oxidative stress in animal models and the effect of quercetin on rats fed high fat or high fructose diet. Investigating the influence of dietary interventions on carbohydrate metabolism and glycogen synthase.
Determining the effects of diets on nitric oxide synthase activity and expression in hepatocytes and cultured endothelial cells in the presence of glucose and antioxidants. The effects of dietary fat and antioxidants on mammary cancer in adult female rats and their offspring.
The role of lipoic acid as an inhibitory treatment in the developmentof dietary induced cataracts in sand rats and galactosemic rats.
Sand rats as a model for NIDDM
Sand rats (Psammomys obesus) have been used as a model for mild diabetes. In its natural environment, the sand rat feeds exclusively on succulent plants with low energy value and high salt content, and demonstrates normal blood–glucose levels. However, long–term feeding of a "high–energy" diet results in obesity and a diabetes syndrome (type 2) which includes insulin resistance, hyperinsulinemia, markedly decreased glucose tolerance and hyperglycemia .
A specially defined diabetic (type 2) line that was developed at the Hebrew University of Jerusalem, Israel is available.
Sprague Dawley rats fed a high galactose diet
Healthy rats fed a diet rich in galactose develop spontaneous cataracts within weeks.
This model has been used in our laboratory to investigate the inhibitory and therapeutic properties of natural compounds and diabetic drugs in prevention of late onset complications of diabetes.
DMBA (dimethyl–1,2–benzanthracene) induced rat mammary tumorigenesis
This model of chemically induced breast cancer in rats has been used in our laboratory in experiments to elucidate the role of dietary fats in inhibition or promotion of cancer development.
DMH (1,2 dimethylhydrazine) induced rat colon cancer
The role of dietary factors in colon cancer development has been investigated using this animal model.
How diet can effect apoptosis, p53 protein expression and many other factors involved in carcinogenesis.
Born 1943, Yemen; immigrated to Israel (Operation Magic Carpet, 1949); Military
Service; (1963 – 1966); Married (1967); Three children (1969, 1972, 1979).
Prevention of cancer and diabetes by dietary fibers and functional foods. Dietary manipulations and their effects on transcription factors, protein activity and expression. Effect of antioxidants and phytochemical rich plant extracts in diabetes. Nitric oxide synthase in various metabolic disorders (diabetes, asthma). Effect of olive oil on breast cancer development in mothers and offspring. Diet and insulin signaling pathways. Lipotoxicity and redox balance in the liver (hepatocytes) and macrophages. Diet and adiponectin signaling pathways (AMPK).
B.Sc.(1971); M.Sc.in Biochemistry (with honors, 1973); Ph.D. in Biochemistry
(1978). All three degrees were granted by The Hebrew University of Jerusalem.
The Hebrew University of Jerusalem:
Lecturer (School of Nutritional Sciences) of Physiology and Biochemistry of Human Nutrition; Senior lecturer of Biochemistry and Nutrition (1984),
Associate Professor of Biochemistry and Nutrition (1990),
Full Professor (1994);
Director – School of Nutritional Sciences (1987 – 1993 and 1997– 2001);
Chairman (2002–present) Institute of Biochemistry, Food Science and Nutrition.
Universities and Research Institutes Overseas:
Post doctorate, Internal Medicine, Yale University, Medical School, New Haven, Connecticut (1978 – 1980);
Visiting Scientist in Stehilin Foundation, Houston, Texas (1980);
National Institutes of Health, Section of Intermediary NIAMDD, Bethesda, Maryland (1980).
Visiting Associate Research Endocrinologist, University of California, San Diego Medical Center with Prof. J.M. Olefsky, Department of Medicine (1984 – 1985);
Visiting Associate Research Endocrinologist, University of California San Diego Medical Center with Prof. J.M. Olefsky, Department of Medicine (1986).
Visiting Associate Research Scientist, The Eye & Ear Institute of Pittsburgh, Pittsburgh, Pennsylvania (1987).
Visiting Prof. Department of Medicine, Medical Center UC San Diego. (1990 – 1991).
Visiting Prof.– Karolinska Hospital Department of Clinical Physiology (1996),Sweden.
Scientific Consultant, Amylin Company, San Diego, California (2001 – 2002).
Visiting professor. Faculty of Medicine, University of Toronto, Department of Nutritional Science 2007; 6 months).
Awarded prize in excellence from the "Geura Yashensky” Foundation of the Hebrew University (1978).
Lady Davis Fellow (1978). Israel Endocrine Society Prize;
best Abstract for Clinical Research (1991). Honorary award from the Israeli Cardiology.
Association (1994). The Karl Bach Chair in Agricultural Biochemistry (2004).
Editor–in–Chief, Nutritional Section "HRAREFUAH" Journal of the Israel Medical Association. Member of the editorial board of the “Journal of Food and Nutrition” (1999–)
PhD Thesis: Effect of Soybean Meal and Trypsin Inhibitors on Biosynthesis and Secretion of Pancreatic enzymes in Chick.
The Hebrew University of Jerusalem
Supervisors: Professor Yehudith Birk and Professor Arieh Gertler
Madar Z., Odes, H.S. 1990 Dietary Fiber Research. In: Progress in Biochemical Pharmacology (R. Paoletti, ed.). Karger, Basal. (24)
Madar Z., Raiany, Y. 2004 Nutrition and Popular Remedies– The Yemenite Tradition.(Hebrew)
Madar, Z, and Levin A. Diabetes book (published in Hebrew). Nutritional Outlines for diabetes treatment 2007, Chapter 5 Page 127–130.
Madar, Z., Stark, A., 2000. The quest for the perfect infant formula. Isr Med Assoc J2:760–761.
Faculty of 1000 Medicine www.f1000medicine.com
Madar, Z., Gertler, A., Dror, Y., 1989
Laboratory manual in human Nutrition. The Hebrew University, Rehovot. Publication in Hebrew