Inferred network

R(Retina) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → MRN(Mesencephalic reticular nucleus)
MRN(Mesencephalic reticular nucleus) → AVP(Anteroventral preoptic nucleus)
AVP(Anteroventral preoptic nucleus) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Medial preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaMedial preoptic nucleus light/moderatenot knownCholera toxin conjugated to HRP
Case pg348,349, fig5a-f. Soma notes 36 female Sprague-Dawley rats weighing 200-350g. 10 microliters of CT-HRP(.20%-.40%) were injected into one eye ?behind the lens into the vitreous chamber of the eye. pressure injection over 1 min. Terminal notes Medial component of the RHT included labeled fibres and terminals found near the midline involved the medial half of the medial preoptic area terminals evident in the ventral part of the medial preoptic nucleus.
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Medial preoptic nucleus to Mesencephalic reticular nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusMesencephalic reticular nucleus existsnot knownPHAL
caudolaterodorsal. Collator note: repeats not included from Swanson, Mogenson, Gerfen, & Robinson Brain Res. 295:161-178, 1984.
Swanson L.W., Mogenson G.J., Simerly R.B., Wu M., 1987

Support information about direct projections from Mesencephalic reticular nucleus to Anteroventral preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Mesencephalic reticular nucleusAnteroventral preoptic nucleus lightnot knownfluorescent tracers
Case pg376, fig9. Soma notes Along the midlaine scattered label were present in the medial septum & in POSC. Preoptic suprachiasmatic region is an ill defined area containing several distinct cell groups in periventricular zone around optic recess & rostral 3rd ventricle.. Terminal notes B2.7 case features bilateral injs of 10% true blue in lateral without incursion into either the MCG or VTA.
Faye-Lund H., 1985

Support information about direct projections from Anteroventral preoptic nucleus to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Anteroventral preoptic nucleusLateral hypothalamic area existsnot knownPHAL
none provided
Thompson R.H., Swanson L.W., 2003