A boy with bilateral duplication of his patellae was radiographically examined between 8 and 11 years of age. the duplication was probably caused by a disrupted fusion of two ossification centra.

Background: Artisanal small-scale gold miners have high levels of mercury in human specimens often above recommended threshold values. There are differences reported in the manifestation of neurological symptoms of individuals with a comparable level of exposure to mercury, suggesting a genetic component influencing the susceptibility to mercury neurotoxicity. Objective: To investigate association

The effects of central cholinergic blockade on spatial memory were tested in aged and basal forebrain-lesioned rats using the Morris Water Maze. In Experiment 1, aged rats (18-21 months old) were characterized as behaviorally impaired or nonimpaired based on water maze performance prior to an atropine sulfate challenge. In the atropine test (50 mg/kg, IP), both the impaired and the nonimpaired rat

A 9-year-old boy sustained a Salter-Harris Type IV fracture in the proximal tibia. the injury resulted in a progressive valgus deformity, detected already after 3 months by roentgen stereophotogrammetry. After temporary stapling medially, the growth rate increased laterally and the deformity was corrected. Unilateral stapling is an alternative procedure for correcting angular deformity following a

At birth a girl sustained a displaced femoral fracture that healed with considerable shortening and angulation. the correction by growth of the deformity was followed radiographically during the entire 16-year growth period.

Previous microdialysis experiments have shown that acetylcholine (ACh) release from septal grafts in the hippocampus of awake rats is influenced by the behaviour of the animals, which strongly suggests that the host brain can exert a regulatory control over the activity of the grafted neurons. Since the activity of the normal septo-hippocampal cholinergic system is likely to be regulated, in part,

The position of the femoral head in relation to the calcar femorale was analyzed from 120 radiographs of normal hips. A constant relationship was found, providing a method of calculating the normal position of the femoral head. the method was tested in 56 cases with physiolysis of the hip and was found to be useful in determining the degree of slipping in both adolescents and adults.

The frequency of slipping and osteoarthritis of the contralateral hip was recorded in 260 patients with slipped upper femoral epiphysis between 1910 and 1960. Twenty-three of these patients (9%) had primary bilateral slipping, 32 (12%) had a contralateral slip diagnosed later during adolescence and a further 104 (40%) had signs of contralateral slipping at follow-up 16 to 66 years later, giving a

Acetylcholine release in the frontal cortex of awake rats after acute or chronic lesions of the nucleus basalis magnocellularis and grafting of cholinergic-rich basal forebrain tissue was studied by in vivo microdialysis. Three to four weeks and five months after a unilateral quisqualic acid lesion of the nucleus basalis, and five months after lesion and cortical implantation of a basal forebrain

Early closure of the growth plate after fixing a slipped upper femoral epiphysis is often regarded as favourable since, if growth of the femoral neck continues, the metal may lose its grip on the epiphysis with the possibility of further slipping. However, in the young child early fusion may result in leg length discrepancy and limited motion. The hook-pin (Hansson 1982) permits continued growth o

One hundred seventy-two patients with 204 slipped capital femoral epiphyses treated with nailing or pinning were evaluated an average of 28 years after surgery. Follow-up evaluation was obtained by questionnaire in 153 cases (181 hips) and by clinical and radiographic reexamination in 132 cases (157 hips). Segmental collapse was seen in four of 179 hips nailed/pinned in situ and in four of 25 hips

Solid grafts of autologous superior cervical ganglia (SCG) or fetal locus coeruleus (LC) were implanted unilaterally into a fimbria-fornix lesion cavity adjacent to the hippocampal formation after a 6-hydroxydopamine lesion of the intrinsic noradrenergic system. Twelve to 15 months after transplantation, one microdialysis probe was implanted in the dorsal hippocampus ipsilateral to the graft, and

Growth during adolescence was analyzed in 40 children with slipped capital femoral epiphysis using the Infancy Childhood Puberty growth model. the advantage of this model is that reference values for height can be adjusted for the individual age at pubertal maturation. In both sexes an above average height was found before the onset of the pubertal growth spurt. However, the pubertal gain in heigh

The signal level and shape of induced polarization responses are significantly affected by the current pulse duration and waveform. If not accounted for, this data dependency on the current will propagate trough the inversion to results rendering unquantifiable subsurface models. While this problem has been addressed in full-response induced polarization modelling, questions remain as to how to ac

In 50 consecutive cases of slipped capital femoral epiphysis (SCFE) from 49 families, the heredity was analyzed by radiographic examination of the first-degree relatives and by interview regarding the second-degree relatives. In four of the 49 families, SCFE was obvious in one or more first-degree relatives; and in another 13 families (14 relatives), radiographic signs of SCFE were found besides t

Lesions of the fimbria-fornix pathways are known to induce a partial cholinergic and noradrenergic denervation of the hippocampal formation, which is followed by a slow and protracted collateral sprouting by the spared afferents. Using the intracerebral microdialysis technique, compensatory changes in extracellular levels of acetylcholine (ACh) and noradrenaline (NA) have been monitored over time

Opinions differ concerning the treatment of choice for severe slipped capital femoral epiphysis, probably due to the lack of long-term follow-up evaluations on the different methods of treatment. A series of 33 patients with severe slipped capital femoral epiphysis, treated per primam with wedge osteotomy of the femoral neck, were radiographically and clinically reexamined an average of 28 years (

Levels of messenger RNA for nerve growth factor, brain-derived neurotrophic factor, neurotrophin-3, and the tyrosine kinase receptors trkA, trkB and trkC have been studied using in situ hybridization in the rat brain 2 h and four weeks after kindling-induced seizures. Epileptiform activity evoked by hippocampal stimulation and exceeding 70 s lead to a concomitant and transient increase of brain- d

Summary: The longitudinal growth rates of the distal fibula were measured, using a roentgen stereophotogrammetric method, in 32 children treated for slipped capital femoral epiphysis and compared with growth rates in a series of normal children. The growth rates in patients were similar to the growth rates in normal children, in both boys and girls. However, at the time of slippage, 13 patients ha