Effects of intraperitoneal injection of phenol, glycerin and acetic acid on neoplastic ascitis in guinea pigs / Efeitos da injeção intraperitoneal de fenol, glicerina e ácido acético na ascite neoplásica em cobaias

PURPOSE: To investigate the histolytic action of a solution composed by phenol, glycerin and acetic acid on neoplastic ascitis in guinea pigs. METHODS: Thirty-two guinea pigs were used. The animals were randomly distributed in experimental and control groups, and the effects of the peritoneal injection of the testing solution were studied. Saline solution was used for the control groups. Biochemical and anatomopathological (heart, lungs, kidneys, spleen and peritoneal serous membrane) were evaluated at 24 hours and 4 weeks of development. RESULTS: It was observed that solution E, when infused into the peritoneal cavity, caused no clinical, histological or laboratory alterations in these animals when compared to those in the control group. CONCLUSION: Given our results, it would be interesting to study the effects of the proposed solution on cases with experimental neoplastic ascites with a later view to treating it in humans.

OBJETIVO: Investigar a ação hìstolítica de uma solução composta de fenol, glicerina e ácido acético na ascite neoplásica em cobaias. MÉTODOS: Foram utilizadas 32 cobaias, distribuídas por sorteio, em grupos experimentais e controles e estudados os efeitos da injeção peritonial da solução teste. Nos grupos controles empregou-se solução fisiológica. Foram estudadas alterações bioquímicas, anatomopatológicas (coração, pulmões, rins, baço e serosa peritonial), com 24 horas e 4 semanas de evolução. RESULTADOS: Verificou-se que a solução E quando instilada na cavidade peritonial não provocou nenhuma alteração clinica, histologica ou laboratorial nestes animais, quando comparados com o grupo controle. CONCLUSÃO: Frente aos resultados obtidos, consideramos interessante estudar os efeitos da solução proposta em casos de ascite neoplásica experimental em animais, com posterior estudo em seres humanos.

Sclerotherapy of idiopathic hydroceles and epididymal cysts: a historical comparison trial of 5% phenol versus tetracycline

Operating time for idiopathic hydroceles and epididymal cysts is scarce as these conditions compete with an increasing caseload of more consequential surgical disease. Therapy is often relegated to repeated aspiration. Sclerotherapy appears to be effective in a majority of published trials, but comparative effectiveness, efficacy and safety of most agents, including phenol versus tetracycline, has not been established A deliberate strategy of re-treatment until cure is not universally practised, with surgery still being offered after single-treatment failures. Two trials, the first consisting of 53 scrotal cysts treated with 5% phenol-in-water and the second, 42 cysts treated with tetracycline, are compared for effectiveness, efficacy and safety of sclerotherapy per se and of re-treatment. Intention-to-treat analysis yields similar cure rates (no re-accumulation three months after last injection) for phenol and tetracycline (83% and 81% respectively, p = 0.8). Per-protocol analysis also yields similar cure rates (100% and 97% respectively, p = 0.26) and mean number of injections to cure (1.34 and 1.12 respectively, p = 0.069), with range 1-4 and 1-3 respectively. Severe pain following tetracycline injection required administration of pre-injection cord block. Other complications occurred equally (25% and 25.7% respectively, p = 0.94) and were trivial except for one case of chronic haematocele treated by orchiectomy in the tetracycline group. Phenol (5%) and tetracycline are equally efficacious sclerosants for idiopathic scrotal cysts, achieving almost 100% cure with re-treatment and matching the efficacy of surgery. Concern about post-treatment fertility applies equally to surgery and demands informed consent for both modalities.

El tiempo de operación para los hidroceles y los quistes epididimales es escaso, ya que estas condiciones triviales compiten con una creciente carga de casos de enfermedades quirúrgicas de mayores consecuencias. La terapia es a menudo relegada a una aspiración repetida. La escleroterapiaparece ser efectiva en la mayoría de los ensayos publicados, pero no se han establecido la seguridad, eficacia y efectividad comparativa de la mayor parte de los agentes, incluyendo el fenol, frente a la tetraciclina. No se practica universalmente una estrategia deliberada de re-tratamiento hasta la cura, ofreciéndose todavía la cirugía, luego de fracasos con tratamientos individuales. Dos ensayos, el primero consistente en 53 quistes escrotales tratados con fenol acuoso al 5%, y el segundo, en 42 quistes tratados con tetraciclina, se comparan en cuanto a efectividad, eficacia y seguridad para laescleroterapia per se y para el re-tratamiento. El análisis de intención de tratamiento produce tasas de curación similares (no hay re-acumulación 3 meses después de la última inyección) para el fenol y la tetraciclina (83% y 81% respectivamente, p = 0.8). El análisis por protocolo también produce tasas de curación similares (100% y 97% respectivamente, p = 0.26) y el número medio de inyecciones paracurar (1.34 y 1.12 respectivamente, p = 0.069), con rangos de 1–4 y 1–3 respectivamente. El dolor severo tras la inyección de tetraciclina requirió hacer un bloqueo espinal de pre-inyec-ción. Asimismo ocurrieron otras complicaciones (25% y 25.7% respectivamente, p = 0.94) y fueron triviales, con excepción de un caso de hematoceles crónicos tratado mediante orquiectomía en el grupo de tetraciclina. El fenol (5%) y la tetraciclina poseen igual eficacia como esclerosantes de los quistes escrotales idiopáticos, ya que logran una curación de casi 100% con el re-tratamiento, e igualan la eficacia de la cirugía...

Effect of phenol on lipid and fatty acid profile of Xanthomonas oryzae pv. oryzae.

Effect of phenol on total lipid and fatty acid composition of Xanthomonas oryzae pv. oryzae, the causal agent of bacterial blight of rice (Oryzae sativa) was studied. Lipid level was low in phenol treated cells. Number of fatty acids detected from phenol treated cells was more than those found in untreated cells as revealed by Gas chromatography. Pentadecanoic acid (C15:0), linolenic acid (C18:3) and behenic acid (C22:0) were present only in the treated cells. Palmitic acid which is usually found in bacteria was not detected both in control and treated cells.

Effect of phenol on protein and amino acid content of Xanthomonas oryzae pv. oryzae.

Leaf blight disease of rice (Oryza sativa) is caused by the bacterium Xanthomonas oryzae pv. oryzae. Phenol (1 to 4 mM) induced changes in protein profiles of X. o. pv. oryzae and a stress protein with a molecular mass of 69,000 appeared. HPLC analysis indicated occurrence of amino acids such as asparagine, alanine, methionine and cystine in phenol treated cells. Proton NMR analysis also revealed variation on the presence of amino acids in the cells treated with phenol.

Pesquisa de puntos gatillo abdominales en pacientes que consultan por algia pelviana / Search of abdominal trigger block points in patients with chronic pelvic pain

En seis pacientes que consultan por dolor pelviano crónico se efectuó el diagnóstico de dolor mioponeurótico. Se procedió a infiltrar los puntos gatillo con lidocaína al 2 por ciento para establecer el diagnóstico y posteriormente con fenol al 10 por ciento para obtener una remisión más duradera del dolor. Tres pacientes obtuvieron excelente respuesta con desaparición del dolor, dos pacientes, aunque mejoraron, hubo persistencia de dolor y en una paciente no hubo respuesta. Se revisa brevemente la fisiología del dolor. El ginecólogo debe tener presente la posibilidad de que la paciente con dolor pelviano crónico sea portadora de puntos gatillo, los que son fácilmente diagnosticados y en algunos casos, definitivamente tratados