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At least 343 records · Page 19Linked to original sources
PubMed2006

Intratissular lymphaticovenous anastomoses demonstrated by perioperative intramuscular injection of 99mTC-colloids.

BACKGROUND: The existence of intratissular lymphaticovenous anastomoses has often been suggested, but it has never been demonstrated. This study aims at demonstrating the presence of such anastomoses. METHODS AND RESULTS: The free flap model was used to investigate the drainage of radiolabeled colloid particles whose size prevents direct passage to the blood vessels. The tracer was injected into the muscle or the skin during the surgical procedure. Blood samples were sequentially drawn from the venous pedicle over the 30 minutes that followed the tracer injection. The blood samples were counted using a gamma well-counter. In all 14 patients, the venous blood radioactivity steadily increased over time. Radiochemical analyses performed on the blood samples demonstrated that the radioactivity is related to the labeled colloids and not to free pertechnetate. Planar imaging performed 24 hours after the surgical procedure showed a significant liver uptake, and no accumulation in the area of normal lymphatic relays. CONCLUSIONS: As, in the free flap model, there is no lymphatic drainage through the classical pathways whatsoever, and since the size of the radiolabeled particles prevents them from directly entering the blood stream, the results strongly suggest the presence of functional intratissular lymphovenous anastomoses.

Butanones↗
PubMed1997

A randomized study on the effects of intramuscular injections with urinary gonadotrophins (Humegon or Pergonal) on pain, local redness and fever in infertile women opting for in-vitro fertilization.

The objective of this open, multicentre, randomized controlled study in women opting for in-vitro fertilization was to compare the occurrence of pain and redness at the injection site and of post-injection fever after i.m. injection with Humegon (n = 89) or Pergonal (n = 92). Assessments were scoring of pain and redness at the injection site and of post-injection fever during the next 24 h using self-administered questionnaires. Injection site pain was reported in 48.9% of injections with Humegon and in 44.9% with Pergonal (P = 0.45). A trend was seen towards more redness after Pergonal injection (24.0 versus 15.5%; P = 0.08). Post-injection fever was reported in 1.4% with Humegon and in 1.1% with Pergonal (P = 0.80). It was concluded that there are no statistically significant differences between Humegon and Pergonal after i.m. injection with respect to the prevalence of pain and redness at the injection site and of post-injection fever.

Adult↗
PubMed1990

Treatment of gonococcal conjunctivitis with a single intramuscular injection of cefotaxime.

Between 25% and 50% of children in African countries are exposed to Neisseria gonorrhoeae at birth and are at risk of developing gonococcal ophthalmia neonatorum. The problem is aggravated by the emergence of penicillinase-producing strains of N. gonorrhoeae (PPNG). Twenty-one children (9 boys, 12 girls, mean age 13 days) presenting with gonococcal conjunctivitis were identified during a 47-month period. Nineteen children received a single im injection of 100 mg/kg cefotaxime (maximum dose 1 g) without topical antibiotic therapy. One neonate with concurrent otitis media was treated with cefotaxime for five days and a 17-month old girl received two im injections because of the severity of her symptoms. Eight patients (38%) had received previous antibiotic therapy (penicillin im and/or tetracycline eye ointment). Twelve isolates of N. gonorrhoeae were found to be PPNG strains. At three to seven day follow-up examination all 21 patients were clinically cured without residual eye damage. Cefotaxime offers an effective first line treatment for gonococcal ophthalmia neonatorum in areas where there is a high prevalence of PPNG strains. The advantages of a single-dose treatment over multidose regimens in terms of compliance and cost are discussed.

Cefotaxime↗
PubMed1995

Tolerability of intramuscular injections of testosterone ester in oil vehicle.

We undertook a prospective survey of the tolerability of deep i.m. injections of testosterone enanthate in a castor oil vehicle, the most widely used form of androgen replacement therapy. Over a period of 8 months, 26 men received 551 weekly injections into the gluteal, deltoid or thigh muscle and side-effects were recorded immediately and 1 week after each injection by the same nurse using a standardized questionnaire. Most injections caused no complaints [389/551, 70.6% (95% confidence interval 66.6-74.4%)] but minor local side-effects, mostly pain and bleeding, were common [162/551, 29.4% (25.6-33.4%)]; no serious side-effects were observed. Considering all side-effects, the gluteal site had fewer complaints and was less prone to bleeding but was painful more often than deltoid or thigh injection sites. The laterality of injection at any site had no significant effect on side-effects. The only systemic side-effect was episodes of sudden-onset, non-productive cough associated with faintness following eight injections [1.5% (0.6-2.9%)] which we speculate may have been due to pulmonary oil microembolism. We conclude that, when administered by an experienced nurse, deep i.m. injection of testosterone enanthate in a castor oil vehicle is generally safe and well tolerated but causes relatively frequent minor side-effects, including pain and bleeding. An improved depot form of testosterone would be highly desirable for androgen replacement therapy and hormonal male contraception.

Adult↗
PubMed1997

Involvement of interleukin-6 in activation of lysosomal cathepsin and atrophy of muscle fibers induced by intramuscular injection of turpentine oil in mice.

Serum IL-6 level increased after the injection of turpentine oil into the right gastrocnemius muscle in mice. The mRNA level of IL-6 was highest in the injected muscle at 12 h after injection, but was not identified in the opposite muscle. The activities of cathepsins B and B+L started to elevate after 12 h in the injected muscle and markedly increased after day 3. Likewise, the mRNA levels of cathepsins B and L markedly increased from day 1 to day 5 in the injected muscle. However, a very mild increase was also observed in the opposite muscle. Immunohistochemical staining of cathepsins B and L exhibited positive reactions as fine granules in myofibers at 12 h and strong positive reactions in the infiltrating macrophages at 3 days. Atrophy of myofibers type 1 and 2 was evident in a time-dependent manner in the injected muscle. Treatment with rat anti-mouse IL-6 receptor monoclonal antibody inhibited the increase in cathepsin activities in the injected muscle. We conclude that IL-6 produced in the inflamed muscle is involved in the process of muscle degeneration, especially through the activation of lysosomal cathepsins.

Animals↗
PubMed2003

Evaluation of aerosol spray and intramuscular injection of bacteriophage to treat an Escherichia coli respiratory infection.

Two studies were conducted to determine the efficacy of either aerosol or i.m. injection of bacteriophage to treat an Escherichia coli respiratory infection in broiler chickens. An additional two studies were conducted to enumerate the bacteriophage in the blood of birds at 1, 2, 3, 4, 5, 6, 24, and 48 h after being sprayed or injected i.m. with bacteriophage. Five birds were bled at each period. In study 1, there were 10 treatments with three replicate pens of 10 birds. The treatments consisted of an untreated control, heat-killed bacteriophage spray, active bacteriophage spray, E. coli challenge at 7 d of age, and E. coli challenge followed by spraying the birds with heat-killed bacteriophage or active bacteriophage at 2, 24, or 48 h after challenge. In study 2 there were 11 treatments with three replicate pens of 10 birds per pen. The treatments were untreated controls, birds injected i.m. in the thigh with heat-killed or active bacteriophage, E. coli challenge at 7 d of age, PBS challenge, E. coli challenge followed by injection of heat-killed or active bacteriophage immediately after challenge or at 24 or 48 h after challenge. In both studies the E. coli challenge consisted of injecting 10(4) cfu into the thoracic air sac. Treatment of this severe E. coli infection with the bacteriophage aerosol spray significantly reduced mortality from 50 to 20% when given immediately after the challenge but had little treatment efficacy when administered 24 or 48 h after challenge. The i.m. injection of bacteriophage significantly reduced mortality from 53 to 17%, 46 to 10%, and 44 to 20% when given immediately, 24, or 48 h after challenge, respectively. Only a few birds sprayed with bacteriophage had detectable bacteriophage in their blood with an average of 96 pfu/mL 1 h after bacteriophage administration, and no bacteriophage was detected 24 and 48 h after bacteriophage administration. All birds injected i.m. with bacteriophage had detectable levels of bacteriophage in their blood at levels of 10(4) pfu/mL of blood up to 6 h after bacteriophage administration, and four of the five birds had detectable bacteriophage in their blood at an average level of 70 pfu/mL of blood 24 h after bacteriophage administration. The relative inefficiency of the spray treatment to the i.m. injection treatment may be due to the inability to get bacteriophage into the blood at high concentrations when the birds are sprayed versus the consistent high titers achieved with the i.m. injection of bacteriophage. These data provide support to the concept that bacteriophage may be an effective alternative to antibiotics in animal production when they are administered in a way that delivers high titers of the bacteriophage to the critical site of the bacterial infection.

Aerosols↗
PubMed2006

Clinical diagnostic indicators of renal and bone damage in rats intramuscularly injected with depleted uranium.

The toxic effects and changes in biochemical markers related to kidney and bone in depleted uranium (DU)-injected rats were examined in order to clarify the relation between clinical biochemical markers and the degree of damage in these organs. Male Wistar rats received a single injection in the femoral muscles of 0.2, 1.0 or 2.0 mg kg(-1) of DU which was dissolved in nitric acid solution adjusted to pH 3.2, for comparison with the group injected with nitric acid solution, and the control group. Urine and faeces were collected periodically over a 24 h period. Thereafter, the rats were killed at 28 d after DU injection. The body weights of the DU-injected groups decreased dose-dependently for the first 3-7 d, and then began to increase. The DU concentrations in the urine and faeces decreased rapidly within 3-7 d after DU injection. Urinary N-acetyl-beta-D-glucosaminidase (NAG)/creatinine peaked at the third day after DU injection, with a high correlation to the injected DU doses. There were high correlations among the injected DU doses, DU concentrations in the kidney and urinary NAG/creatinine values that were obtained at 28 d, respectively. The blood urea nitrogen (BUN) and creatinine in the serum also showed a high correlation with the DU-injected doses. The results indicated that urinary NAG/creatinine, BUN and creatinine in serum were useful indicators to diagnose the renal damage by DU, as well as to estimate the DU intake and concentration in the kidney when the intake is >2 mg kg(-1) DU. The total bone mineral density of the proximal metaphysis of the tibia decreased in the 2 mg kg(-1) DU group. In addition, alterations of the trabecular bone structure by inhibiting bone formation and promoting bone resorption were observed by bone histomorphometery. The bone biochemical markers osteocalcin, tartrate-resistance acid phosphatase, pyridinoline and rat-parathyroid hormone increased in all the DU injected groups, indicating that these markers were useful as sensitive indicators for diagnosing bone damage, even if the DU dose injected is low.

Animals↗