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Detalles Bibliográficos
Autores principales:	Carmen Corciulo, Beatrice Dal Pino, Francesco Sbrana, Federico Bigazzi
Formato:	Artículo Open Access
Publicado:	Wiley 2025
Materias:	Journal of Clinical Apheresis
Acceso en línea:	https://onlinelibrary.wiley.com/doi/10.1002/jca.70018
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

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Lipoprotein(a) Measurement in Lipoprotein Apheresis: Time to Change? Carmen Corciulo Beatrice Dal Pino Francesco Sbrana Federico Bigazzi Journal of Clinical Apheresis ABSTRACTThe question of standardizing the measurement of lipoprotein(a) [Lp(a)] has been discussed for many years, but the unavailability of automated methods insensitive to the structural heterogeneity of Lp(a) and the transition to a new unit of measurement have delayed this process. The aim of this study is to compare, in subjects undergoing regular lipoprotein apheresis (LA) treatment (31 subjects, mean age 62 ± 11 years, female 7/31), Lp(a) measurements performed using routine polyclonal antibodies with a method that recognizes a single copy of apo(a) per molecule. This pilot study for adopting an assay insensitive to apo(a) size polymorphism showed a good match with the traditional method: correlations between pre‐LA and post‐LA measures show an R2 of 0.89 and 0.76, respectively. Despite the interpretative problem caused by adopting different units of measurement, we believe that moving to an assay insensitive to the dimensional variation of apo(a) represents a necessary change to standardize, improve, and extend the accuracy and diagnostic power of Lp(a). 10.1002/jca.70018 http://onlinelibrary.wiley.com/termsAndConditions#vor

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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