| | Animals (subjects) |  | Sex: M |  | Number of animals: 10 |  | Age: not specified |  | Mass: 250-300 |  | Unit of mass: |  | Housing conditions: normal housing |  | Annotation: Male Sprague-Dawley rats (n = 10, 250–300 g; B&K Universal, Stockholm, Sweden) and male C57B1mice (n = 5, 20–40 g; B&K Universal) were used. The animals were kept under regular lighting conditions (lights on at 6.00 and off at 18.00) in a temperature-controlled environment and had free access to standard rodent chow and tap water. | 
 | | Experimental method |  | Experiment type: in situ hybridization |  | Neuron/glia identification method: stain specific |  | Staining frequency: 1:10 |  | Experimental details:
 
 |  | Measured nucleic acid: mRNA Source (producer): Scandinavian Gene Synthesis, Koping, Sweden).
 Probe sequence: 479-527 MCH nucleotides
 Sequence species: rat
 Probe sequence orientation: antisense
 Control: sense
 Labelling method: radiolabelling
 Visualization method:  autoradiogram
 Visualization medium: slide
 Annotation: Probes complementary to nucleotides 479-527 of the rat MCH mRNA(Nahon et al., 1989) and to nucleotides 2-49 of the rat H/O mRNA(Sakurai et al., 1998) were synthesized (Scandinavian Gene Synthesis, Ko¨ping, Sweden). Probe sequences were controlled against other sequences in the GenBank database, and no homologies exceeding 75% were found.
 
 |  |  |  | Measured nucleic acid: mRNA Source (producer): Scandinavian Gene Synthesis, Koping, Sweden).
 Probe sequence:  2-49 H/O nucleotides
 Sequence species: rat
 Probe sequence orientation: antisense
 Control: sense
 Labelling method: radiolabelling
 Visualization method:  autoradiogram
 Visualization medium: slide
 Annotation: Probes complementary to nucleotides 479-527 of the rat MCH mRNA(Nahon et al., 1989) and to nucleotides 2-49 of the rat H/O mRNA(Sakurai et al., 1998) were synthesized (Scandinavian Gene Synthesis, Ko¨ping, Sweden). Probe sequences were controlled against other sequences in the GenBank database, and no homologies exceeding 75% were found.
 
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