Femur/innervation; Femur/metabolism; Mandible/innervation; Mandible/metabolism; Sympathetic Nervous System/metabolism; Animals; Cholinergic Fibers/drug effects; Cholinergic Fibers/metabolism; Femur/cytology; Femur/drug effects; Gene Expression Regulation/drug effects; Guanethidine/pharmacology; Isoproterenol/pharmacology; Macrophage Colony-Stimulating Factor/genetics; Macrophage Colony-Stimulating Factor/metabolism; Male; Mandible/cytology; Mandible/drug effects; Osteogenesis/drug effects; Osteogenesis/genetics; Osteoprotegerin/genetics; Osteoprotegerin/metabolism; Periosteum/cytology; Periosteum/drug effects; Periosteum/innervation; Periosteum/metabolism; Propranolol/pharmacology; RANK Ligand/genetics; RANK Ligand/metabolism; RNA, Messenger/genetics; RNA, Messenger/metabolism; Rats; Rats, Wistar; Receptors, Adrenergic, beta-2/metabolism; Receptors, Vasoactive Intestinal Peptide/metabolism; Sympathectomy; Sympathetic Nervous System/drug effects; Sympathetic Nervous System/surgery; Time Factors; Tyrosine 3-Monooxygenase/metabolism; Vasoactive Intestinal Peptide/pharmacology