Smooth muscle cells in the testicular capsule of the horse, pig and sheep.
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Smooth muscle cells are present in the tunica albuginea testis of the horse, pig and sheep. typical fusiform muscle cells constitute a distinct layer up to 0.3 micrometer thick in the horse; there are fewer muscle cells, mainly of the branched form, in the pig; whereas in the sheep the muscle component is least well developed, with some cells intermediate in form between smooth muscle cells and fibroblasts (myofibroblasts). Attention is drawn to the continuity of this capsular muscle with the smooth muscle associated with the vasculature of the spermatic cord in the horse. This association suggests that the capsular muscle is unlikely to have a primary role in sperm transport from the testis. (+info)
Complex replication error causes p53 mutation in a Li-Fraumeni family.
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We demonstrated a germline p53 replication error in two generations of a Li-Fraumeni family affected with liposarcoma, adrenocortical carcinoma, and osteosarcoma. The trinucleotide repeat mutation changed 5'-AGT GTG GTG GTG-3' at codons 215-218 to 5'-AGT TGG TTG GTG GTG-3'. The predicted protein would be elongated by one amino acid (val216-->trp leu) without a change in charge. Detection of p53 in the adrenal tumor by immunostaining suggested that the mutant protein was expressed. Persistence of the mutation in the germline may suggest a defect in DNA repair in the family member first affected. This is the first report where germline transmission of replication-damaged p53 trinucleotide repeats is associated with the Li-Fraumeni syndrome. (+info)
Spermatic cord block: a safe technique for intrascrotal surgery.
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In a prospective study, 103 patients underwent operative procedures on the testis, epidydimis or spermatic cord using the technique of spermatic cord block anaesthesia. The procedures were tolerated well and all patients were treated on a day case basis. There were no complications attributable to the technique. We consider cord block anaesthesia to be a safe and cost-effective technique suitable for intrascrotal surgery. (+info)
Evaluation of a polymerase chain reaction-based assay for diagnosis of Wuchereria bancrofti infection.
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To assess the utility of a polymerase chain reaction (PCR)-based method for diagnosis of Wuchereria bancrofti infection, blood, plasma, and paraffin-embedded tissue samples were tested using a PCR-based assay that detects a W. bancrofti-specific repetitive DNA sequence. The assay was positive in 100 microL of blood from 40 of 42 microfilaria-positive subjects, the 2 subjects with negative assays having microfilarial counts of 1. Samples from 127 uninfected subjects were PCR-negative. The assay was also positive in 7 of 10 daytime samples in regions where infection is nocturnally periodic; PCR amplification from paraffin-embedded sections established the diagnosis of W. bancrofti infection in another 2 cases. A microtiter ELISA plate-based method was developed for rapid evaluation of large numbers of samples. These results suggest that this PCR-based assay will be useful in diagnosis of W. bancrofti infection in a variety of clinical settings. (+info)
Pseudocyst of the spermatic cord of a gelding.
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Clinical, echographic, and histopathological features of an unusual enlarging scrotal mass in a 5-year-old gelding are described. Echography of the scrotal mass in this case provided valuable information concerning the nature of the tissue present, and assisted in narrowing the differential diagnosis. (+info)
Ultrasonographic detection of living adult Wuchereria bancrofti using a 3.5-MHz transducer.
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Adult Wuchereria bancrofti can be readily detected by ultrasound in the lymphatic vessels of the spermatic cord with a 7.5-MHz transducer, but most ultrasound machines in developing countries are equipped with 3.5-MHz transducers. To assess the potential for ultrasound as a tool for diagnosis and epidemiologic assessment in lymphatic filariasis, we compared the performance of 3.5-MHz and 7.5-MHz transducers in 61 men in Recife, Brazil. All men had three ultrasound examinations using a 3.5 MHz transducer and an examination with a 7.5-MHz probe. Using the 7.5-MHz transducer, adult W. bancrofti were detected in 41 men; 81 adult worm nests were detected. Sixty-four (79%) nests were detected with the 3.5-MHz probe, each on all three examinations. The 3.5-MHz probe correctly identified 35 (85.4%) of 41 men as infected; sensitivity increased with lymphatic vessel diameter. Ultrasonographic examination with a 3.5-MHz transducer is a sensitive method for detection of adult W. bancrofti in men and merits consideration as a tool for rapid epidemiologic assessment. (+info)
Update on treatment of varicocele: counselling as effective as occlusion of the vena spermatica.
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This prospective randomized study was performed in order to investigate the effects of interventive treatment or counselling on pregnancy rates in infertile couples in whose male partners a varicocele was diagnosed. The present report extends a previous study using the same design. A total of 125 couples were included in the current study while the previous report comprised 95 couples. Couples fulfilling the inclusion criteria were allocated randomly either to interventive treatment (surgical ligation or angiographic embolization of the spermatic vein) (n = 62) or to counselling as the sole treatment (n = 63). Couples were followed over the subsequent 12 months and seen at 3-monthly intervals. At the end of the 12 month period pregnancy rates, as the main outcome measure, were 29% in the group given interventive treatment and 25.4% in the counselled group and were not significantly different. The only significant difference found, regardless of treatment modality, was the wives' age at admittance: the 34 wives achieving a pregnancy were 28.8 +/- 0.6 years (mean +/- SE) old while the 91 non-pregnant wives were 31.2 +/- 0.3 years old (P < 0.05). The study suggests that regular counselling of the infertile couples is as effective as interventive treatment of varicoceles in achieving pregnancies. (+info)