Inferred network

R(Retina) → PVH(Paraventricular nucleus of the hypothalamus)
PVH(Paraventricular nucleus of the hypothalamus) → ARH(Arcuate nucleus of the hypothalamus)
ARH(Arcuate nucleus of the hypothalamus) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Paraventricular nucleus of the hypothalamus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaParaventricular nucleus of the hypothalamus moderatenot knownCholera toxin conjugated to HRP
Case pg348, fig2. 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: a few fibres were seen in the PVN in some rats but this label was not consistently evident.
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Paraventricular nucleus of the hypothalamus to Arcuate nucleus of the hypothalamus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Paraventricular nucleus of the hypothalamusArcuate nucleus of the hypothalamus existsnot knownfluorescent tracers
Case pg239-40. Soma notes true blue labeled neurons were seen in the anterior magnocellular, posterior magnocellular and periventricular parts of the paraventricular nucleus of the hypothalamus, as well as in the anterior hypothalamic area.. Terminal notes Expt E9 had a small crystal centred more caudally (than E38) in the area lateral to the arcuate nucleus & median eminence..
Watts AG, Swanson LW., 1987

Support information about direct projections from Arcuate nucleus of the hypothalamus to Medial preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Arcuate nucleus of the hypothalamusMedial preoptic nucleus existsnot knownTrue Blue/SITS/WGA
ipsilateral, after excluding projections described in Simerly, Swanson, & Gorski Brain Res. 324: 185-189, 1984
Simerly RB, Swanson LW., 1986

Support information about direct projections from Medial preoptic nucleus to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusLateral hypothalamic area moderatenot knownHRP/WGA
Case table1. Soma notes WGA-HRP inj. Terminal notes lateral hypothalamic nucleus.
Chiba T, Murata Y., 1985
Medial preoptic nucleusLateral hypothalamic area existsnot knownautoradiography
none provided
Swanson L.W., 1976
Medial preoptic nucleusLateral hypothalamic area existsnot knownPHAL
earlier: Swanson JCN 167:227, 1976. 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