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	41.	Lighting conditions affect testosterone feedback sensitivity in castrated rats. [electronic resource] by Porkka-Heiskanen, T Laakso, M L Stenberg, D Johansson, G Peder, M Producer: 19891117 In: Hormone research vol. 31 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	42.	Effect of neonatal androgenization on the testosterone feedback sensitivity in adult rats in two lighting conditions. [electronic resource] by Porkka-Heiskanen, T Laakso, M L Johansson, G Stenberg, D Peder, M Producer: 19900306 In: Hormone research vol. 31 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	43.	Increase in testosterone sensitivity induced by constant light in relation to melatonin injections in rats. [electronic resource] by Porkka-Heiskanen, T Laakso, M L Stenberg, D Alila, A Johansson, G Producer: 19921218 In: Journal of reproduction and fertility vol. 96 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	44.	Correlation between salivary and serum melatonin: dependence on serum melatonin levels. [electronic resource] by Laakso, M L Porkka-Heiskanen, T Alila, A Stenberg, D Johansson, G Producer: 19901204 In: Journal of pineal research vol. 9 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	45.	Testosterone elevates pituitary prolactin content of long-term castrated rats under constant but not under periodic light. [electronic resource] by Porkka-Heiskanen, T Laakso, M L Stenberg, D Peder, M Johansson, G Producer: 19910213 In: Acta physiologica Scandinavica vol. 140 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	46.	Nitric oxide production in the basal forebrain is required for recovery sleep. [electronic resource] by Kalinchuk, A V Lu, Y Stenberg, D Rosenberg, P A Porkka-Heiskanen, T Producer: 20070108 In: Journal of neurochemistry vol. 99 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	47.	Sleep deprivation increases somatostatin and growth hormone-releasing hormone messenger RNA in the rat hypothalamus. [electronic resource] by Toppila, J Alanko, L Asikainen, M Tobler, I Stenberg, D Porkka-Heiskanen, T Producer: 19980112 In: Journal of sleep research vol. 6 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	48.	Pineal melatonin and locomotor activity of rats under gradual illuminance transitions. [electronic resource] by Laakso, M L Leinonen, L Joutsiniemi, S L Porkka-Heiskanen, T Stenberg, D Producer: 19921123 In: Physiology & behavior vol. 52 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	49.	The role of cholinergic basal forebrain neurons in adenosine-mediated homeostatic control of sleep: lessons from 192 IgG-saporin lesions. [electronic resource] by Kalinchuk, A V McCarley, R W Stenberg, D Porkka-Heiskanen, T Basheer, R Producer: 20090105 In: Neuroscience vol. 157 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	50.	Lighting conditions affect serum and pituitary TSH in male rats. [electronic resource] by Laakso, M L Porkka-Heiskanen, T Stenberg, D Johansson, G Männistö, P T Producer: 19900911 In: The American journal of physiology vol. 259 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	51.	Effect of different nocturnal illuminances on melatonin, prolactin, and gonadotropins in male rats. [electronic resource] by Laakso, M L Porkka-Heiskanen, T Alila, A Kajander, S Stenberg, D Johansson, G Producer: 19900208 In: Journal of pineal research vol. 7 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	52.	The effect of REM sleep deprivation on somatostatin and growth hormone-releasing hormone gene expression in the rat hypothalamus. [electronic resource] by Toppila, J Asikainen, M Alanko, L Turek, F W Stenberg, D Porkka-Heiskanen, T Producer: 19961023 In: Journal of sleep research vol. 5 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	53.	Daily illuminance levels affect pituitary prolactin in male rats. [electronic resource] by Laakso, M L Porkka-Heiskanen, T Alila, A Kajander, S Stenberg, D Johansson, G Producer: 19890619 In: Acta endocrinologica vol. 120 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	54.	Sleep deprivation increases brain serotonin turnover in the rat. [electronic resource] by Asikainen, M Toppila, J Alanko, L Ward, D J Stenberg, D Porkka-Heiskanen, T Producer: 19970731 In: Neuroreport vol. 8 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	55.	REM sleep deprivation induces galanin gene expression in the rat brain. [electronic resource] by Toppila, J Stenberg, D Alanko, L Asikainen, M Urban, J H Turek, F W Porkka-Heiskanen, T Producer: 19950606 In: Neuroscience letters vol. 183 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	56.	Noradrenergic activity in rat brain during rapid eye movement sleep deprivation and rebound sleep. [electronic resource] by Porkka-Heiskanen, T Smith, S E Taira, T Urban, J H Levine, J E Turek, F W Stenberg, D Producer: 19950814 In: The American journal of physiology vol. 268 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)