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At least 991 records · Page 55Linked to original sources
PubMed2003

Associational sprouting in the mouse fascia dentata after entorhinal lesion in vitro.

Collateral sprouting is a form of neuronal plasticity observed in brain following injury. In order to establish an in vitro model of collateral sprouting, entorhino-hippocampal slice cultures were prepared from brain of C57BL/6 mouse pups (P1-4) and incubated for 14-16 days in vitro. Thereafter, entorhino-hippocampal fibers were cut and the outer molecular layer of the fascia dentata was denervated. At this age, entorhino-hippocampal fibers do not regenerate, as could be shown using anterograde tracing with Miniruby. Sprouting of associational mossy cell axons was monitored using calretinin-immunocytochemistry. Control and lesioned entorhino-hippocampal slices were studied at 1, 5, and 10 days postlesion. Whereas only the inner portion of the molecular layer was occupied by calretinin-positive mossy cell axons in controls and after 1 and 5 days postlesion, the entire width of the molecular layer was occupied by associational fibers by 10 days postlesion. Thus, robust sprouting of associational mossy cell axons occurs in response to entorhinal denervation in vitro. Using organotypic entorhino-hippocampal slices of genetically engineered mice, this sprouting model can be used to identify molecules involved in the regulation of sprouting following brain injury.

Animals↗
PubMed1998

Pedicled external spermatic fascia flap for urethroplasty in hypospadias and closure of urethrocutaneous fistula.

PURPOSE: To prevent the development of urethrocutaneous fistula after urethroplasty for hypospadias or recurrence after closure of a urethrocutaneous fistula, the authors developed a new simple technique wherein the readily available external spermatic fascia (ESF) surrounding the testis and cord is used as a pedicled blanket flap to cover the neourethra or the site of closure of a urethrocutaneous fistula. RESULTS: In three patients who had urethroplasty for hypospadias incorporating our ESF flap procedure, no urethrocutaneous fistula developed. It was also effective for closure of urethrocutaneous fistula in five patients, some of whom had had recurrent fistula formation.

Adult↗
PubMed1991

Bilateral excision of perinephric fat and fascia (Gerota's fasciectomy) in the treatment of intractable chyluria.

A case is described of a 59-year-old black man with massive chyluria, probably due to previous infection with Wuchereria bancrofti. Notably, no edema was present despite a urinary protein loss of 40 gm. per day resulting in a serum albumin level of 13 gm./l. Conservative treatment after lymphography, including prolonged bedrest and a medium chain triglyceride diet, was unsuccessful. Bilateral excision of the perinephric fascia and fat (Gerota's fasciectomy) in 2 separate operative sessions finally resulted in complete resolution of the chyluria.

Adipose Tissue↗
PubMed1989

The use of rectus fascia to manage urinary incontinence.

The surgical management of urinary incontinence in children is one of the most difficult challenges facing pediatric urologists today. We have critically looked at our experience using a rectus fascial sling to prevent incontinence. Eleven girls (6 to 22 years old) with urinary incontinence from neurogenic bladder dysfunction (9), surgical injury to the bladder (1) or urogenital sinus abnormality (1) comprise this study. All had failed regimens of pharmacological therapy and intermittent catheterization. Three patients had undergone prior bladder neck reconstruction and 2 an augmentation cystoplasty in an attempt to control the incontinence. Urodynamic studies revealed several reasons for the continued wetting in these individuals: a changing neurological lesion leading to a loss of innervation and concomitantly lowered urethral resistance in 2 patients, adequate urethral resistance at rest but decreasing resistance with bladder filling in 4, no increase in urethral resistance with increases in abdominal pressure in 4 and urethral instability (a decrease in resistance following a cough or Valsalva's maneuver) in 1 apparently neurologically normal girl. Eight patients are dry 3 to 24 months postoperatively on intermittent catheterization. All have demonstrated either an increase in urethral resistance at rest or an adequate level of resistance during filling of the bladder or a sudden increase in abdominal pressure. Of the remaining 3 patients 1 is dry for 2 to 3 hours but then leakage occurs, 1 is improved but damp and 1 patient is wet 3 months postoperatively. The use of rectus fascia to improve outlet resistance seems to be a viable alternative in the management of incontinence in selected female subjects.

Adolescent↗
PubMed2003

Complete resection of synovial sarcoma of prostatic fascia.

Synovial sarcomas primarily occur chiefly in the para-articular regions of the extremities and extremely rarely in the prostatic region. We report a patient with synovial sarcoma of the prostatic fascia. The patient underwent retropubic radical prostatectomy and at 6 months of follow-up, no evidence of another lesion or local recurrence was found.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1997

Fine structure of hippocampal dendrites in the dentate fascia of LS/SS-mice after chronic ethanol treatment.

1. The effect of ethanol and its withdrawal on the dendritic microtubules in the dentate fascia of male mice was studied in the ethanol-sensitive, long-sleep (LS) line and the ethanol-insensitive, short-sleep (SS) line. 2. Both mouse lines were treated with a liquid ethanol diet. Dendrites in the dentate molecular layer (DML) of the right hippocampus were examined. 3. They revealed marked changes in microtubule density as compared with the controls. While the microtubule density in LS mice was significantly reduced by 15% and 18% in the middle and distal third of the DML, respectively, in SS mice the reduction (by 12%) took place in the distal third only. During withdrawal a recovery of the microtubule density has been observed in both lines.

Alcoholism↗
PubMed1986

Nodular fasciitis of the upper labial fascia: cytometric and ultrastructural studies.

The rare case of nodular fasciitis in the upper labial fascia is reported. Light microscopic, electron microscopic and cytometric studies were performed. The histopathology corresponded to intermediate and reactive types in the Price and Bernstein classification. Cytometric study of evaluating DNA of fibroblasts revealed a high distinct peak in myxoid and inflammatory areas. Ultrastructurally, fibroblasts and myofibroblasts were identified in the lesion. Reported Japanese cases of orofacial nodular fasciitis are reviewed and compared with the European-American literature.

Adult↗
PubMed1997

Neuronal inclusions in the dentate fascia in patients with multiple system atrophy.

Ubiquitin-immunoreactive neuronal inclusions in the granular cells in the dentate fascia (UNIDs) of patients with multiple system atrophy (MSA) were examined for immunohistochemical and ultrastructural characterization especially in comparison with those which were recently reported for amyotrophic lateral sclerosis with dementia (ALS-D). Eight of 23 MSA patients had UNIDs which were also identified by Gallyas-Braak impregnation but immunonegative for other antibodies including against tau, neurofilaments, and alphaB crystallin. Ultrastructurally, loosely aggregated fibrils without limiting membrane located around the nucleus, which was confirmed by the results of ubiquitin-immunoelectron microscopy. The formation of UNIDs in MSA and ALS-D was suggested to be caused by different types of degeneration because UNIDs in MSA differ from these in ALS-D in terms of their stainability by Gallyas-Braak impregnation and ultrastructurally. In this study hippocampal involvement in MSA differing from ALS-D was clarified.

Aged↗
PubMed1997

Cholinergic sprouting in the rat fascia dentata after entorhinal lesion is not linked to early changes in neurotrophin messenger RNA expression.

After unilateral entorhinal cortex lesion cholinergic septohippocampal fibres sprout in the denervated fascia dentata. This process is dependent on neurotrophin changes following the lesion. Thus, there is an up-regulation of nerve growth factor and brain-derived neurotrophic factor messenger RNA expression in the denervated granule cells which is detectable 4 h postlesion and returns to control levels by 24 h. Here, using a competitive polymerase chain reaction and in situ hybridization, a transient neurotropin messenger RNA increase could be demonstrated bilaterally following unilateral electrolytic entorhinal cortex lesion. Treatment of the animals with the N-methyl-D-aspartate receptor antagonist dizocilpine maleate blocked this messenger RNA increase, suggesting an involvement of this receptor type in the neurotrophin changes. However, in spite of this blockade, the typical cholinergic sprouting response as visualized with acetylcholinesterase histochemistry was present in animals four weeks after entorhinal cortex lesion. These data suggest that brief initial changes in neurotrophin messenger RNA expression in dentate granule cells are not responsible for the induction of the cholinergic sprouting. Changes in neurotrophin messenger RNA expression occurring immediately postlesion may be linked to glutamate release from entorhinal terminals resulting from the electrolytic lesion of the projection cells in the entorhinal cortex. We hypothesize that later changes in neurotrophin expression, for example in glial cells, are more likely to be related to the cholinergic sprouting process.

Acetylcholinesterase↗
PubMed2002

Photomovement of the swarmers of the brown algae Scytosiphon lomentaria and Petalonia fascia: effect of photon irradiance, spectral composition and UV dose.

Photomovement measurements were carried out with swarmers of the brown algae Scytosiphon lomentaria (Lyngb.) Link and Petalonia fascia (O. F. Müll.) as a function of irradiance direction, photon irradiance, spectral composition and ultraviolet radiation (UVR, lambda=280-400 nm) dose. Swarmers from both species showed similar photomovement patterns: negative phototaxis occurred under photon irradiances of 10-90 micromol photons m(-2) s(-1), and no movement was observed at 190 micromol photons m(-2) s(-1). The translocational velocity measured between 10 and 90 micromol m(-2) s(-1) ranged from 100 to 200 microm s(-1). The accumulation of swarmers presented a peak at 450 nm (waveband of 50 nm), and smaller peaks at 400 and 500 nm; no effect was observed at wavelengths of 550 nm and above. The decline in phototactic index (an estimator of photomovement response) of swarmers was linearly correlated with the logarithm of UVR doses. These data were correlated with levels of natural solar radiation in the field. It is hypothesized that motility of swarmers could be a critical factor in the survival of these species under a scenario of increased UVR.

Phaeophyceae↗
PubMed1991

Mastoid obliteration with the temporoparietal fascia flap.

Obliteration of persistently discharging open mastoid cavities is one surgical option to achieve a dry ear. All the currently described techniques involve the use of random pattern local tissue flaps or free grafts. Ten patients have undergone obliteration procedures using the vascularized temporoparietal fascia flap. This resulted in rapid epithelialization by six weeks in seven out of 10 cases. The remaining three patients have persistent non healed areas over the medial attic wall, but are not troubled by otorrhoea. The indications, technique and complications of mastoid obliteration by this axial pattern flap are described.

Adolescent↗
PubMed1997

Modified tragal cartilage--temporoparietal and deep temporal fascia sandwich graft technique for repair of nasal septal perforations.

Fifteen cases of nasal septal perforation were repaired with a tragal cartilage--temporoparietal and deep temporal fascia sandwich technique using a modification of the approach previously described (Hussain and Kay, 1992). Successful closure was achieved in 14 patients (100 per cent) after an observation time of up to two years. The operative technique and advantages of the modified approach are described.

Adult↗
PubMed2001

The fascia iliaca block for postoperative pain relief after knee surgery.

The fascia iliaca nerve block provides excellent postoperative pain relief after knee surgery. It is easy to perform, needle insertion is not directly next to nerves or vessels, and it is associated with minimal side effects. Instructive case reports as well as a description and discussion of the technique are presented.

Journal Article↗
PubMed2001

Histologic analysis of the tibial bone tunnel after anterior cruciate ligament reconstruction using solvent-dried and gamma-irradiated fascia lata allograft.

Anterior cruciate ligament (ACL) reconstruction using free tendon graft requires biologic fixation in the bone tunnel. This report describes the intratunnel histology retrieved from a 47-year-old woman who underwent high tibial osteotomy 17 months after ACL reconstruction using a hybrid graft (a solvent-dried and gamma-irradiated fascia lata allograft as a core wrapped with iliotibial autograft). The patient underwent revision because of pain resulting from osteoarthrotic change, and the graft appeared to be taut and healthy on second-look arthroscopy. The sample was taken from the site of the metaphyseal osteotomy site. Histologic examination of the samples was performed with a light microscope (H&E and Masson trichrome stain). Biologic fixation of the graft to the bone was evident from observation of collagen fiber continuities, resembling Sharpey fibers. Integration of the autograft and allograft seemed to have occurred; the junction between the allograft and the autograft could not be determined. However, there was a difference in ligamentization depending on location. In the peripheral region of the graft (the autograft region), the collagen fibers showed a distinct crimped pattern; the fibroblasts were arranged regularly along the major axis of the collagen fiber bundle. In the central part of the graft (the allograft region), remodeling seemed to be delayed. There were acellular, bubbly or myxoid degeneration areas in which the fiber bundles were less oriented and there was increased vascularity.

Anterior Cruciate Ligament↗
PubMed2001

Entrapment of the lateral antebrachial cutaneous nerve exiting through the forearm fascia.

Isolated lateral antebrachial cutaneous nerve entrapment syndromes are uncommon. This report describes the compression of the lateral antebrachial cutaneous nerve of the forearm at the level of its passage through the superficial antebrachial fascia, distal to the elbow crease. Numbness and a painful dysesthesia over the radial aspect of the volar forearm were documented. Failure of conservative treatment necessitated surgical decompression.

Adult↗