Chen, J., et al. The role of CYP3A4 and p-glycoprotein in food-drug and herb-drug interactions. Pharmacist 25, no. 9 (2006): 732–38.
Chonpathompikunlert, P., et al. Piperine, the main alkaloid of Thai black pepper, protects against neurodegeneration and cognitive impairment in animal model of cognitive deficit like condition of Alzheimer’s disease. Food Chem Toxicol 48, no. 3 (2010): 798–802.
Chun, H., et al. Biochemical properties of polysaccharides from black pepper. Biol Pharm Bull 25, no. 9 (2002): 1203–8.
Dama, M. S., et al. Effect of trikatu pretreatment on the pharmacokinetics of pefloxacin administered orally in mountain Gaddi goats.J Vet Sci 9, no. 1 (2008): 25–29.
Fu, M., et al. Neuroprotective effect of piperine on primarily cultured hippocampal neurons. Biol Pharm Bull 33, no. 4 (2010): 598–603.
Gideon [pseud.]. Piperine multiplies the strength of many supplements and drugs. Delano Report (blog). http://Delano.com/blog/?tag=piperine (accessed 2/27/2011).
Gupta, S. K., et al. Comparative anti-nociceptive, anti-inflammatory and toxicity profile of nimesulide vs nimesulide and piperine combination. Pharmacol Res 41, no. 6 (2002): 657–62.
Horn, J. R., and P. D. Hansten. Get to know an enzyme: CYP3A4. Pharmacy Times, September 2008: 40–42.
Johri, R. K. Piperine-mediated changes in the permeability of rat intestinal epithelial cells. The status of gamma-glutamyl transpeptidase activity, uptake of amino acids and lipid peroxidation. Biochem Pharmacol 43, no. 7 (1992): 1401–7.
Lala, L. G., et al. Pharmacokinetic and pharmacodynamic studies on interaction of “trikatu” with diclofenac sodium. J Ethnopharmacol 91, no. 2–3 (2004): 277–80.
Lee, S. W., et al. Alkamides from the fruits of Piper longum and Piper nigrum displaying potent cell adhesion inhibition. Bioorg Med Chem Lett 18, no. 16 (2008): 4544–46.
Matheny, C., et al. Pharmacokinetic and pharmacodynamic implications of P-glycoprotein modulation. Pharmacotherapy Publications 21, no. 7 (2001): 1–2.
Mehmood, M. H., et al. Pharmacological basis for the medicinal use of black pepper and piperine in gastrointestinal disorders. J Med Food 13, no. 5 (2010): 1086–96.
Mujumdar, A. M., et al. Anti-inflammatory activity of piperine. Jpn J Med Sci Biol 43, no. 3 (1990): 95–100.
Mujumdar, A. M., et al. Effect of piperine on pentobarbitone induced hypnosis in rats. Indian J Exp Biol 28, no. 5 (1990): 486–87.
Najar, I. A., et al. Involvement of P-glycoprotein and CYP 3A4 in the enhancement of eteposide bioavailability by a piperine analogue. Chem Biol Interact 190, no. 2–3 (2011). E-pub (preprint) February 17, 2011.
Nakatani, N., et al. Chemical constituents of peppers (Piper spp.) and application to food preservation: naturally occurring antioxidative compounds. Environ Health Perspect 67 (1986): 135–42.
Oesterheld, Jessica. P-gp (ABCB1) Introduction. On the website of GeneMDRx. http://www.genemedrx.com/PGP_Introduction.php (accessed February 27, 2011).
Pathak, N., et al. Cytoprotective and immunomodulating properties of piperine on murine splenocytes: an in vitro study. Eur J Pharmacol 576, no. 1–3 (2007): 160–70.
Ramakrishnan, Pankajavalli. The role of P-glycoprotein in the blood-brain barrier. Einstein Quart J Biol Med 19 (2003): 160–65.
Rasheed, M., et al. Phytochemical studies on the seed extract of Piper nigrum Linn. Nat Prod Res 19, no. 7 (2005): 703–12.
Reddy, S. V., et al. Antibacterial constituents from the berries of Piper nigrum. Phytomedicine 11, no. 7–8 (2004): 697–700.
Rho, M. C., et al. ACAT inhibition of alkamides identified in the fruits of Piper nigrum. Phytochemistry 68, no. 6 (2007): 899–903.
Sabina, E. P., et al. A role of piperine on monosodium urate crystal-induced inflammation – an experimental model of gouty arthritis. Inflammation 34, no. 3 (2011). E-pub (preprint) 2010.
Sasidharan, I. Comparative chemical composition and antimicrobial activity of berry and leaf essential oils of Piper nigrum L. IJBMR 1, no. 4 (2010): 215–18.
Shingh, I. P., et al. Synthesis and antileishmanial activity of piperoyl-amino acid conjugates. Eur J Med Chem 45, no. 8 (2010): 3439–45.
Shoba, G., et al. Influence of piperine on the pharmacokinetics of curcumin in animals and human volunteers. Planta Med 64, no. 4 (1998): 353–56.
Suresh, D. V, et al. Binding of bioactive phytochemical piperine with human serum albumin: a spectrofluorometric study. Biopolymers 86, no. 4 (2007): 265–75.
Thummel, K. Gut instincts: CYP3A4 and intestinal drug metabolism. J Clin Invest 117, no. 11 (2007): 3173–76.
Volak, L. P., et al. Curcuminoids inhibit multiple human cytochromes P450, UDP-glucuronosyltransferase, and sulfotransferaseenzymes, whereas piperine is a relatively selective CYP3A4 inhibitor. Drug Metab Dispos 36, no. 8 (2008): 1594–605.
Zhang, W., et al. Dietary regulation of P-gp function and expression. Expert Opin Drug Metab Toxicol 5, no. 7 (2009): 789–801.
Zhou, S., et al. Herbal modulation of P-glycoprotein. Drug Metab Rev 36, no. 1 (2004): 57–104.
Anonymous. Chemicals in: Eupatorium perfoliatum L. (Asteraceae). Entry in Dr. Duke’s Phytochemical and Ethnobotanical Databases. http://ars-grin.gov/duke (accessed December 9, 2010).
Elsässer-Beile, U., et al. Cytokine production in leukocyte cultures during therapy with echinacea extract. J Clin Lab Anal 10, no. 6 (1996): 441–45.
Gassinger, C. A. A controlled clinical trial for testing of efficacy of the homeopathic drug Eupatorium perfoliatum D2 in the treatment of common cold (author’s transl). Arzneimittelforschung 31, no. 4 (1981): 732–36.
Habtemariam, S., et al. Cytotoxicity and antibacterial activity of ethanol extract from leaves of a herbal drug, boneset (Eupatorium perfoliatum). Phytother Res 14, no. 7 (2000): 575–77.
Herz, W., et al. Sesquiterpene lactones of Eupatorium perfoliatum. J Org Chem 42, no. 13 (1977): 2264–71.
Lang, G., et al. Antiplasmodial activities of sesquiterpene lactones from Eupatorium semialatum, Z Naturforsch C 57, no. 3–4 (2002): 282–86.
Lira-Salazar, G., et al. Effects of homeopathic medications Eupatorium perfoliatum and Arsenicum album on parasitemia of Plasmodium berghei-infected mice. Homeopathy 95, no. 4 (2006): 223–28.
Maas, M., et al. Caffeic acid derivatives from Eupatorium perfoliatum L. Molecules 14, no. 1 (2008): 36–45.
Robinson, G., et al. Medical attributes of Eupatorium perfoliatum – boneset. Paper developed for a course in medical botany at Wilkes University, Wilkes-Barre, Penn., July 2007. http://klemow.wilkes.edu/Eupatorium.html.
Wagner, H., et al. Immunological studies of plant combination preparations. In-vitro and in-vivo studies on the stimulation of phagocytosis. Arzneimittelforschung 41, no. 10 (1991): 1072–76.
Woerdenbag, H. J. Enhanced cytostatic of the sesquiterpene lactone eupatoriopicrin by glutathione depletion. Br J Cancer 59, no. 1 (1989): 68–75.
Ameyaw, Y., et al. Quality and harvesting specifications of some herbalists in the eastern region of Ghana. Ethnobotanical Leaflets (2005). http://ethnoleaflets.com/leaflets/eghana.htm.
Ameyaw, Y., et al. The impact of pH and soil nutrients on the total alkaloid content of Cryptolepis sanguinolenta (Lindl.) Schtr. Biosci Biotech Res Asia 4, no. 2 (2007): 1.
Amponsah, K., et al. Manual for the propagation and cultivation of medicinal plants of Ghana.
Accra, Ghana: Aburi Botanic Garden (University of Ghana), 2002. Available from CabDirect at http://cabdirect.org/abstracts/20073006217.html.
Anasah, C., et al. In vitro genotoxicity of the West African anti-malarial herbal Cryptolepis sanguinolenta and its major alkaloid cryptolepine. Toxicology 208, no. 1 (2005): 141–47.
Anonymous. Antimicrobial properties of some West African medicinal plants II. Antimicrobial activity of aqueous extracts of Cryptolepis sanguinolenta (Lindl.) Schlechter. Quart. J. Crude Du Res 17, no. 2 (1979): 78–80.
Anonymous. Cryptolepis: An African traditional medicine that provides hope for malaria victims. Herbal Gram 60 (2003): 54–59, 67.
Anonymous. Cryptolepis buchanani. Brief profile on the website of Ayurvedic Community at http://ayurvediccommunity.com/Botany.asp?Botname=Cryptolepis%20buchanani (accessed December 28, 2010).
Anonymous. Review of cryptoline. On the website of EurekaMag.com at http://eurekamag.com/review/c/427/cryptolepine.php (accessed November 20, 2010).
Anonymous. Selected African botanical remedies. http://academic.cengage.com/resource_uploads/downloads/049511541X_122179.pdf.
Anonymous. Shyamlata. On the website of AyurvedaConsultants.com at http://ayurvedaconsultants.com/images/doctor/ayurveda/ayurvedic-herb-shyamlata.aspx (accessed December 28, 2010).
Ansah, C., et al. Anxiogenic effects of an aqueous crude extract of Cryptolepis sanguinolenta (Periploceae) in mice. Int J Pharmacol 4, no. 1 (2008): 20–26.
Ansah, C., et al. Cryptolepine provokes changes in the expression of cell cycle proteins in growing cells. Am J Pharmacol Tox 4, no. 4 (2009): 177–85.
Ansah, C., et al. The popular herbal antimalarial, extract of Cryptolepis sanguinolenta, is potently cytotoxic. Oxford J Life Sci Med Tox Sci 70, no. 2 (2002): 245–51.
Ansah, C., et al. Reproductive and developmental toxicity of