It is well known that diabetes causes an increase of serum cholesterol and phospholipids. However, little information has been available regarding serum glycerides levels in diabetics.In this paper, serum lipids levels including triglyceride, diglyceride, monoglyceride, non-esterified fattyacids and total cholesterol of nineteen normal subjects, fifty-one diabetics and nine non-diabetic arteriosclerotics, were determined according to a recently developed reliable chromatographic method.The mean normal serum total glycerides level was 72.9±20.8 mg/dl. An increase of mean total glycerides level of 123.2±53.3 mg/dl in diabetics was statistically significant as compared to normal subjects but not to arteriosclerotics. The level of serum partial glycerides showed an increase in diabetics and in a lesser degree in arteriosclerotics.Diabetics with complications revealed a higher level of serum total glycerides as compared to diabetics without complications.However, no difference in serum total glycerides levels could be detected regarding sex, age at onset, body weight, severity of disease and treatment of diabetics.A long term observation on serum lipids and blood sugar in two cases of alloxanized rabbit showed two phases of lipemia with hyperglycemia. The lipemia of the early phase was regressed in 10 to 20 days without treatment. However, the lipemia of the second phase followed in a case of long duration of hyperglycemia.
The arterial vasculature in the region of the floor of the mouth was studied in the guinea pig by means of the acryl plastic injection method.1. The arteries observed in the region were the sublingual artery of the facial, the alveolingual of the maxillary and the sublingual branches of the lingual.2. The branches of the sublingual were as follows: (1) the mylohyoid branches to the muscle, (2) the muscular branches to the digastric, mylohyoid and geniohyoid muscles, (3) the submandibular lymph node branches to the nodes, skin and muscles in the submental and submandibular regions, (4) the mandibular transversal branches to the muscle, (5) the alveolar branches to the periodontal tissue of the incisors and adjacent bone, (6) the preincisive branch (the terminal) to the labial gingiva and mucosa of the incisors, the symphysis and the adjacent tissues, and (7) the retroincisive branch (the terminal) to the lingual and lateral gingivae of the incisors, the symphysis and the adjacent tissues.3. The alveolingual artery of the maxillary divided below the third molar into superior and inferior branches. They anastomosed with the sublingual branch of the lingual near the minor sublingual gland to form two arterial arches in the alveolingual area, supplying the lingual gingiva of the molar region, the mylohyoid muscle and the lingual nerve.4. The sublingual branches of the lingual supplied the sublingual papilla, the adjacent mucosa, the originating portion of the geniohyoid and genioglossal muscles and the minor sublingual gland.