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Calcitriol [1,25(OH)2D3], the hormonal derivative of vitamin D3, is an antiproliferative and prodifferentiation factor for several cell types, including cultured melanocytes and malignant melanoma (MM) cells. Several polymorphisms of the vitamin D receptor (VDR) gene have been described including a FokI RFLP in exon 2, BsmI, and ApaI polymorphisms in intron(More)
We report an unusual etiology for third-trimester bleeding. A pregnant patient underwent sonographic evaluation after presenting in the third trimester with uterine contractions and bleeding per the vagina. Massive cervical varices were identified on prenatal sonography as the cause of the bleeding and resulted in cesarean delivery and gravid hysterectomy.(More)
We examine the anatomic basis for abstract and concrete lexical representations in semantic memory by assessing patients with focal neurodegenerative disease. Prior evidence from healthy adult studies suggests that there may be an anatomical dissociation between abstract and concrete representations: abstract words more strongly activate the left inferior(More)
In 1971 and again in 1977, Costello reported on two unrelated children with multiple congenital malformations associated with growth and developmental retardation and nasal papillomata (Costello, NZ Med J 74:397, 1971; Costello, Aust Paediatr J 13:114-118, 1977). Subsequently, two similar cases were described (Der Kaloustian et al., Am J Med Genet 41:69-73,(More)
After creating "fontanelles" in infant rhesus monkeys, we measured intracranial pressure of these monkeys directly with an indwelling cannula and indirectly with a Ladd 1700 sensor. Values obtained with the Ladd sensor placed over the shaven fontanelle closely approximate directly measured pressure in acute experiments in these animals and in human(More)
Patients with amyotrophic lateral sclerosis (ALS) have a motor disorder and cognitive difficulties, including difficulty with action verbs. However, the basis for the action verb impairment is unknown. Thirty-six participants with ALS and 22 with Parkinson’s disease (PD) were assessed on a simple, two-alternative forced-choice associativity judgment task,(More)
Quantifiers such as many and some are thought to depend in part on the conceptual representation of number knowledge, while object nouns such as cookie and boy appear to depend in part on visual feature knowledge associated with object concepts. Further, number knowledge is associated with a frontal-parietal network while object knowledge is related in part(More)
We examined narrative speech production longitudinally in non-demented (n=15) and mildly demented (n=8) patients with Parkinson's disease spectrum disorder (PDSD), and we related increasing impairment to structural brain changes in specific language and motor regions. Patients provided semi-structured speech samples, describing a standardized picture at two(More)
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