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Ni, Dalong,Jiang, Dawei,Im, Hyung-Jun,Valdovinos, Hector F.,Yu, Bo,Goel, Shreya,Barnhart, Todd E.,Huang, Peng,Cai, Weibo Elsevier 2018 Biomaterials Vol.171 No.-
<P><B>Abstract</B></P> <P>Radiolabeled nanoprobes for positron emission tomography (PET) imaging has received special attention over the past decade, allowing for sensitive, non-invasive, and quantitative detection of different diseases. The rapidly renal clearable nanomaterials normally suffer from a low accumulation in the tumor through the enhanced permeability and retention (EPR) effect due to the rapidly reduced concentration in the blood circulation after renal clearance. It is highly important to design radiolabeled nanomaterials which can meet the balance between the rapid renal clearance and strong EPR effect within a suitable timescale. Herein, renal clearable polyoxometalate (POM) clusters of ultra-small size (∼1 nm in diameter) were readily radiolabeled with the oxophilic <SUP>89</SUP>Zr to obtain <SUP>89</SUP>Zr-POM clusters, which may allow for efficient staging of kidney dysfunction in a murine model of unilateral ureteral obstruction (UUO). Furthermore, the as-synthesized clusters can accumulate in the tumor through EPR effect and self-assemble into larger nanostructures in the acidic tumor microenvironment for enhanced tumor accumulation, offering an excellent balance between renal clearance and EPR effect.</P> <P><B>Graphical abstract</B></P> <P>Herein, renal clearable polyoxometalate clusters (POM) were readily radiolabeled with the oxophilic <SUP>89</SUP>Zr to allow for efficient staging of kidney dysfunction in a murine model. Furthermore, the as-synthesized clusters can accumulate in the tumor through enhanced permeability and retention (EPR) effect and self-assemble into larger nanostructures in the acidic tumor microenvironment for enhanced tumor accumulation, offering an excellent balance between renal clearance and EPR effect.</P> <P>[DISPLAY OMISSION]</P>
Enrique Coss-Adame,Janette Furuzawa-Carballeda,Andric C Perez-Ortiz,Ana López-Ruiz,Miguel A Valdovinos,Josué Sánchez-Gómez,José Peralta-Figueroa,Héctor Olvera-Prado,Fidel López-Verdugo,Sofía Narváez-C 대한소화기 기능성질환∙운동학회 2023 Journal of Neurogastroenterology and Motility (JNM Vol.29 No.4
Background/AimsThe evidence suggests that a shorter esophageal length (EL) in gastroesophageal reflux disease (GERD) patients is associated with the presence of hiatal hernia (HH). However, there are no reports of this association in patients with achalasia. The aim is to (1) determine the prevalence of hiatal hernia in achalasia patients, (2) compare achalasia EL with GERD patients and healthy volunteers (HV), (3) measure achalasia manometric esophageal length to height (MELH) ratio, and (4) determine if there are differences in symptoms between patients with and without hiatal hernia. MethodsThis retrospective and cross-sectional study consist of 87 pre-surgical achalasia patients, 22 GERD patients, and 30 HV. High-resolution manometry (HRM), barium swallow, and upper endoscopy were performed to diagnose HH. The EL and MELH ratio were measured by HRM. Symptoms were assessed with Eckardt, Eating Assessment Tool, and GERD–health-related quality of life questionnaires. ResultsThe HH in GERD’s prevalence was 73% vs 3% in achalasia patients (P < 0.001). Achalasia patients had a longer esophagus and a higher MELH ratio than HV and GERD patients (P < 0.001). GERD patients had a lower MELH ratio than HV (P < 0.05). EAT-10 (P < 0.0001) and Eckardt (P < 0.05) scores were higher in achalasia without HH vs HH. ConclusionsThe prevalence of HH in achalasia is significantly lower than in GERD. The longer EL and the higher MELH ratio in achalasia could explain the lower prevalence of HH. Despite the low prevalence of HH in achalasia patients, the surgeon should be encouraged not to rule out HH since the risk of postoperative reflux may increase if this condition is not identified and corrected.
An Unusual Case of Extra-Enteric Blastocystosis in the Uterine Cervix
Yolanda Escutia-Guzman,Williams Arony Martinez-Flores,Joel Martinez-Ocana,Ramon Martinez-Pimentel,Marisol Benitez-Ramirez,Fernando Martinez-Hernandez,Sara Arroyo-Escalante,Mirza Romero-Valdovinos,Guad 대한기생충학열대의학회 2020 The Korean Journal of Parasitology Vol.58 No.5
Villalobos, Guiehdani,Sanchez-Aguillon, Fabiola,Carmona-Maldonado, Marcia Veronica,Gonzalez-Arenas, Nelly Raquel,Lopez-Escamilla, Eduardo,Hernandez-Castro, Rigoberto,Romero-Valdovinos, Mirza,Martinez- The Korea Society for Parasitology and Tropical Me 2022 The Korean Journal of Parasitology Vol.60 No.3
There have been few reports on extra-enteric infections by Blastocystis STs and none have been molecularly identified in samples from human reproductive organs. We report for the first time the identification of 3 different subtypes of Blastocystis (ST1-3) in vaginal and sperm samples, from patients infected with Trichomonas vaginalis. Blastocystis STs were identified by PCR-sequencing and by phylogenetic inferences using 28 vaginal swab samples and 7 sperm samples from patients trichomoniasis. Blastocystis STs were identified in 6 of 28 vaginal swabs (21.4%) and in 3 of 7 sperm samples (42.8%). In both biological samples, STs 1-3 were found; one vaginal sample showed subtype co-infection with ST1 and ST3. High genetic variation was observed in the sequences obtained and no specific clustering in the phylogenetic trees was detected. Most of the haplotypes identified were placed far from the main dispersal centers. Our finding suggested that incorrect cleaning of the genital area or a contamination by combination of anal and vaginal intercourse.
( Alejandro Garza Alpirez ),( Ana Fernanda Alvarado Villalobos ),( Luis Gonzalo Gomez Sanchez ),( Luis Alonso Morales Garza ),( Maria Teresa Sanchez Avila ),( Salvador Bruno Valdovinos Chavez ),( Mons 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
Background: Prompt treatment of pancreatitis aims to identify using established scales, which patients will develop a complicated course and therefore, would benefit from a more aggressive treatment and closer monitoring. Objective: To assess the reproducibility of the HAPS score (normal creatinine and hemoglobin without presence of peritoneal irritation) in patients with acute pancreatitis and then compare the results of Ranson, APACHE II, CTSI and BISAP scales to determine their ability to predict non severe evolution. Methods: 62 patients with acute pancreatitis were evaluated. The most common etiology was biliary, with 36 cases (22 females [F] and 14 men [M]), followed by alcoholic with 12 cases (0F:12M), lipidic 10 cases (2F:8M) and idiopathic cases with 4 (4F:0M) and biochemical measurements were made to calculate the prognostic scales Ranson, APACHE II and BISAP (at income, 24 and 48 hours). An abdominal CT scan was also made in order to complete the CTSI scale. Results: HAPS correlated with Ranson and APACHE II, the two most used scales to assess patients with acute pancreatitis. 14 (22.5%) patients met the 3 parameters of HAPS score for the prediction of a non-severe evolution, of which only 1 had severe evolution. For necrosis, scales with better sensitivity and specificity were BISAP HAPS, CTSI and Ranson. While to organic failure the scale with better sensitivity was BISAP and with better specificity were HAPS and Ranson. Conclusions: The HAPS scale is a suitable tool for initial assessment of Mexican patients with acute pancreatitis of any etiology because of its ability to predict a non-severe evolution.