Východisko a cíl: Prognóza inoperabilního karcinomu jícnu je velmi závažná, léčba těchto pacientů je paliativní. Cílem sdělení je retrospektivní hodnocení intraluminální brachyterapie vysokým dávkovým příkonem nádorové stenózy inoperabilního karcinomu jícnu. Pacienti a metody: Od února 1996 do června 2011 bylo intraluminální brachyterapií léčeno 41 pacientů s karcinomem jícnu, z toho v 19 případech se jednalo o dlaždicobuněčný karcinom a ve 22 případech o adenokarcinom. U všech pacientů byla před zahájením brachyterapie přítomna dysfagie. Výsledky: U většiny pacientů došlo po brachyterapii k úlevě polykacích obtíží. Medián doby přežití činil 396 dní (95 % CI: 270–492 dní). Nebyla pozorována mechanická komplikace zavedení brachyterapeutického aplikátoru. Závěr: Intraluminální brachyterapie je účinná a bezpečná paliativní metoda léčby dysfagie způsobené nádorovou stenózou jícnu. Background and purpose: The prognosis of inoperable carcinomas of esophagus is poor, and therapeutic efforts are generally limited to palliation. The aim of this study is to retrospectively evaluate the effectiveness of intraluminal high dose rate brachytherapy in the palliative treatment of tumorous esophageal stenoses. Patients and methods: Between February 1996 and June 2011 intraluminal brachytherapy was performed in 41 patients with esophageal carcinoma (squamous cell carcinoma in 19 cases and adenocarcinoma in 22 cases). All patients had dysphagia at presentation. Brachytherapy was performed using high dose rate afterloading system. Results: Dysphagia was improved in majority of patients. The median survival was 396 days (95 % CI: 270–492 days). No mechanical complication was observed during introduction of the applicator. Conclusion: Our experience indicates that intraluminal brachytherapy is an effective and safe method of palliation of dysphagia caused by malignant esophageal stenosis., Background and purpose: The prognosis of inoperable carcinomas of esophagus is poor, and therapeutic efforts are generally limited to palliation. The aim of this study is to retrospectively evaluate the effectiveness of intraluminal high dose rate brachytherapy in the palliative treatment of tumorous esophageal stenoses. Patients and methods: Between February 1996 and June 2011 intraluminal brachytherapy was performed in 41 patients with esophageal carcinoma (squamous cell carcinoma in 19 cases and adenocarcinoma in 22 cases). All patients had dysphagia at presentation. Brachytherapy was performed using high dose rate afterloading system. Results: Dysphagia was improved in majority of patients. The median survival was 396 days (95 % CI: 270–492 days). No mechanical complication was observed during introduction of the applicator. Conclusion: Our experience indicates that intraluminal brachytherapy is an effective and safe method of palliation of dysphagia caused by malignant esophageal stenosis., David Buka, Josef Dvořák, Jiří Petera, Linda Kašaová, Jana Bedrošová, Milan Zouhar, Petr Paluska, Igor Sirák, Igor Richter, Milan Vošmik, Zdeněk Zoul, and Literatura
Dideoxynucleotide DNA sequencing is one of the principal procedures in molecular biology. Loss of an initial part of nucleotides behind the 3' end of the sequencing primer limits the readability of sequenced amplicons. We present a method which extends the readability by using sequencing primers modified by polyadenylated tails attached to their 5' ends. Performing a polymerase chain reaction, we amplified eight amplicons of six human genes (AMELX, APOE, HFE, MBL2, SERPINA1 and TGFB1) ranging from 106 bp to 680 bp. Polyadenylation of the sequencing primers minimized the loss of bases in all amplicons. Complete sequences of shorter products (AMELX 106 bp, SERPINA1 121 bp, HFE 208 bp, APOE 244 bp, MBL2 317 bp) were obtained. In addition, in the case of TGFB1 products (366 bp, 432 bp, and 680 bp, respectively), the lengths of sequencing readings were significantly longer if adenylated primers were used. Thus, single strand dideoxynucleotide sequencing with adenylated primers enables complete or near complete readability of short PCR amplicons. and M. Beránek, M. Drastíková, J. Petera