Inferred network

R(Retina) → MPO(Medial preoptic area)
MPO(Medial preoptic area) → PVH(Paraventricular nucleus of the hypothalamus)
PVH(Paraventricular nucleus of the hypothalamus) → NDB(Nucleus of the diagonal band)
NDB(Nucleus of the diagonal band) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Medial preoptic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaMedial preoptic area light/moderatenot knownCholera toxin conjugated to HRP
Case pg348,349, fig5d-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 anterior medial preoptic area Paper describes a.m.p.a. as separate region .
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991
RetinaMedial preoptic area existsnot knownCholera toxin conjugated to HRP
Case pg351,352, 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 in preoptic region ros. to SCN. lat. component of RHT labeled terminals and fibres within or lateral to the lateral haf of the medial preoptic area. Terminal label evident in ven. 1/2 of the lateral part of the medial preoptic area.
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Medial preoptic area to Paraventricular nucleus of the hypothalamus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic areaParaventricular nucleus of the hypothalamus moderatenot knownfluorescent tracers
Case pg236, fig4. Soma notes true blue filled cells were seen throughout the medial preoptic and anterior hypothalamic areas, but greatest concentration was found in SCH, across whole nucleus but max in dorsal part.. Terminal notes In an attempt to obtain maximal retro label in SCh, a large crystal implant of true blue (E24) was placed at lvl of paraventricular nucleus of the hypothalamus.
Watts AG, Swanson LW., 1987

Support information about direct projections from Paraventricular nucleus of the hypothalamus to Nucleus of the diagonal band:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Paraventricular nucleus of the hypothalamusNucleus of the diagonal band existsnot knownneurophysinI
earlier: Conrad & Pfaff, JCN 169:221-261, 1976, rat, autoradiography, not subsequently confirmed with axonal transport methods
Swanson L.W, 1977

Support information about direct projections from Nucleus of the diagonal band to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Nucleus of the diagonal bandLateral hypothalamic area existsnot knownautoradiography
earlier: Conrad & Pfaff JCN 169:185, 1976, rat, autoradiography
Swanson L.W., Cowan W.M., 1979