Inferred network

R(Retina) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → PMv(Ventral premammillary nucleus)
PMv(Ventral premammillary nucleus) → PMd(Dorsal premammillary nucleus)
PMd(Dorsal premammillary 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 Ventral premammillary nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusVentral premammillary nucleus moderatenot knownHRP/WGA
Case table1. Soma notes WGA-HRP inj. Terminal notes not specified..
 Chiba T, Murata Y., 1985
Medial preoptic nucleusVentral premammillary nucleus moderatenot knownHRP/WGA
Case table1. Soma notes not specified.. Terminal notes WGA-HRP inj.
 Chiba T, Murata Y., 1985

Support information about direct projections from Ventral premammillary nucleus to Dorsal premammillary nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Ventral premammillary nucleusDorsal premammillary nucleus lightnot knownCTB
At mammillary levels, a few retrogradely labeled cells were reliably observed in the ventral premammillary and posterior nuclei (Fig. 3L).
 Comoli E., Ribeiro-Barbosa E.R. & Canteras N.S., 2000

Support information about direct projections from Dorsal premammillary nucleus to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Dorsal premammillary nucleusLateral hypothalamic area existsnot knownPHAL
perifornical
 Canteras N.S., Swanson L.W., 1992