Search PubMed⌕ Search

Biomedical subjects

J Newman

Publications and source records attributed to J Newman.

At least 271 records · Page 15Linked to original sources
PubMed1978

Injury to the brachial plexus as a result of diagnostic arteriography.

Six cases of brachial plexus injury within the brachial sheath are reported following axillary-brachial arteriography. Direct compression resulted from leakage of arterial blood into the space formed by the fascial sheath. In one, hemorrhage occurred several days after arteriotomy. Early decompression and arteriorrhaphy resulted in restoration of normal function. Permanent nerve damage resulted when surgical decompression was delayed.

Aged↗
PubMed1978

Treatment of hepatic metastases with a combination of hepatic artery infusion chemotherapy and external radiotherapy.

Systemic chemotherapy has given good results when compared with that of patients who received no chemotherapy. When resection was performed, the results are slightly better. The group of patients who underwent combined therapy, using infusion chemotherapy, radiation and systemic chemotherapy, had the best results. It appears that infusion chemotherapy and radiotherapy can improve the palliation available for patients with metastases in the liver from carcinoma of the colon and rectum and warrants further investigation.

Adult↗
PubMed1978

Giving and getting surgery in Utah: an urban-rural comparison.

Using the Blue Cross/Blue Shield and Medicare records for 1 year in Utah, we examined the pattern of surgical performance for 15 selected procedures. Only 60% of those identifying themselves as general surgeons had their specialty boards. General practitioners performed 24% of the procedures. Urban general practitioners performed proportionately more surgery than did their rural counterparts. There was no clear pattern of difference in fees or length of stay by specialty or board certification status. For most procedures studied, at least a third of the rural patients had their operations in urban hospitals. In only 3% of the cases did an urban physician operate in a rural hospital. The pattern of surgery for rural and urban residents was strikingly similar.

Certification↗
PubMed1977

The surface structure of the tegument of Schistosoma haematobium.

The surface structure of the tegument of adult S. haematobium (Egyptian strain) was studied by scanning electron microscopy. Most of the dorsal surface of the male is studded by prominent, spine-covered tubercles, or bosses, not found in the female. Structural details of the oral and ventral suckers and sensory organelles, and local variations in the tegument are described.

Animals↗
PubMed1977

Detection of neoplastic and preneoplastic urothelia by combined scanning and transmission electron microscopy of urinary surface of human and rat bladders.

Scanning and transmission electron microscopy reveal distinct differences between the appearance of the luminal surface membrane of normal urothelium and those of transitional cell tumours of both human and rat bladder. The luminal surface membrane of the preneoplastic rat urothelium shows features similar to those seen in the fully developed tumour. In human tumour-bearing bladders the urothelium away from the transitional cell tumour is not recognizable as being preneoplastic by light microscopy. However, by scanning or transmission electron microscopy, the luminal membrane in some areas shows changes identical to those in the preneoplastic rat bladder. These observations are in accordance with the clinical behaviour of the urothelium in patients with vesical transitional cell tumours which tend to recur in disparate site. We suggest that scanning electron microscopy of the bladder urothelium away from the tumour may be of prognostic value for indicating the subsequent biological behaviour of the urothelium.

Animals↗
PubMed1977

Why morality?

Explore the source record for details and available documents.

Morals↗
PubMed1976

Removal of hepatitis B surface antigen (HBsAg) from plasma fractions.

Endogenous or deliberately added hepatitis B antigen was removed and concentrated for assay from albumin, and from coagulation factor II, VII, IX, and X concentrates as model plasma fractions. The concentrates carry considerable risk of causing hepatitis in transfused patients. The amount of antigen remaining in the fraction was estimated to be less than 1/10,000 of that detectable by the Ausria II radioimmunoassay and 1/100 of that found to be infectious when highly contaminated human sera were diluted and injected in chimpanzees. Batch fractionation methods with polyethylene glycol were used. The yield of albumin was 96 per cent and of the coagulation factors about 90 per cent.

Blood Proteins↗
PubMed1975

Vascular injuries associated with fractures of the femur.

Over a five-year period, 21 patients were seen with vascular injuries associated with fractures of the femur. In 19, vascular repair was performed at the time of the acute injury. The average interval from injury to repair was 15 hours. Arterial injuries included transection, intimal flap, laceration, avulsion, and false aneurysm. End-to-end repair was done in 11 cases, and autogenous vein grafting in nine. One artery was ligated for false aneurysm. In the 19 acute cases, internal fixation was used in eight; this method of immobilization resulted in two major amputations and three cases of anterior tibial compartment necrosis. Of 11 patients who had external immobilization, two eventually required amputation because of massive soft tissue injury. Internal bone fixation is not necessary for successful vascular repair and seemed to cause greater limb and tissue loss, probably due to prolonged ischemia time. If internal bone fixation is used, the artery should be repaired before the bone.

Adolescent↗
PubMed1975

Temperature-sensitive mutants of foot-and-mouth disease virus: the isolation of mutants and observations on their properties and genetic recombination.

A number of temperature-sensitive mutants were isolated from two strains of foot-and-mouth disease virus (FMDV). Various properties of the mutants were examined including comparative growth curves at permissive and restrictive temperatures, cut-off temperatures, thermal lability and pH sensitivity. Recombination was observed between various pairs of mutants of FMDV strain Pacheco. It occurred early in the growth cycle and the proportion of recombinants remained constant thereafter. Maximum recombination was achieved if the input multiplicity of each virus was 6 p.f.u./cell or greater, provided the ratio of the input multiplicities did not vary by more than a factor of two. Day-to-day variations could be substantially reduced by normalizing recombination frequencies in terms of a standard cross. The results suggested that genetic mapping was possible with two-or three-factor crosses.

Animals↗