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PURPOSE OF REVIEW: To provide a comprehensive review of hypertension among patients with cancer. Several cancer therapies cause hypertension which has resulted in a growing and vulnerable population of patients with difficult to control hypertension which has significant downstream effects. RECENT FINDINGS: Hypertension affects up to 50% of cancer patients and higher comorbidity when compared to the general population. Many anticancer therapies can cause hypertension through their treatment effect. Antihypertensive treatment is crucial given cardiovascular mortality is a leading cause of death among cancer patients. It is already known that hypertension is poorly controlled in the general population, and there are additional challenges in management among patients with cancer. Patients with cancer suffer from multimorbidity, are on multiple medications creating concern for drug interactions, and often have blood pressure lability, which can worsen clinical inertia among patients and their providers. It is crucial to effectively treat hypertension in cancer patients to mitigate downstream adverse cardiovascular events. SUMMARY: In recent years, there have been significant changes in management guidelines of hypertension and simultaneously as influx of new cancer therapeutics. We provide an update on hypertension treatment among patients with cancer on different chemotherapeutic agents.
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Antihipertensivos , Antineoplásicos , Hipertensión , Neoplasias , Humanos , Hipertensión/inducido químicamente , Hipertensión/tratamiento farmacológico , Neoplasias/tratamiento farmacológico , Neoplasias/complicaciones , Antihipertensivos/uso terapéutico , Antihipertensivos/efectos adversos , Antineoplásicos/efectos adversos , Antineoplásicos/uso terapéutico , Manejo de la Enfermedad , Presión Sanguínea/efectos de los fármacosRESUMEN
Importance: Many patients with coronary artery disease (CAD) do not achieve the guideline-directed goals for low-density lipoprotein cholesterol (LDL-C) levels. Objective: To estimate reductions in the rates of adverse events associated with CAD in a large US military veteran population that may be achieved through use of optimized statin therapy alone or with ezetimibe compared with the prevailing lipid-lowering therapy (LLT). Design, Setting, and Participants: In this observational cohort study, US military veterans with CAD were identified by coronary angiography between June 2015 and September 2020 across 82 US Department of Veterans Affairs health care facilities. Exposures: The exposures were observed LLT, LLT with an optimized statin regimen, and LLT with optimized statin and ezetimibe. Main Outcomes and Measures: Observed rates of death, myocardial infarction, stroke, and coronary revascularization, and potential reductions in those outcomes with optimized LLT based on expected further reductions in LDL-C levels and application of formulas from The Cholesterol Treatment Trialists' Collaboration. Results: The analysis cohort comprised 111â¯954 veterans (mean [SD] age, 68.4 [8.8] years; 109â¯390 men [97.7%]; 91â¯589 White patients [81.8%]; 17â¯592 Black patients [15.7%]). The median (IQR) observation period for this study was 3.4 (2.1-4.0) years. At the time of index angiography, 66â¯877 patients (59.7%) were treated with statin therapy, and 623 patients (0.6%) were treated with ezetimibe. At 6 months, the number of patients with statin prescriptions increased to 74â¯400 (68.7%), but the number of patients with high-intensity statin prescriptions was only 57â¯297 (52.9%). At 6 months, ezetimibe use remained low (n = 1168 [1.1%]), and LDL-C levels were 70 mg/dL or more in 56â¯405 patients (52.1%). At 4 years, observed incidences of death, myocardial infarction, stroke, and coronary revascularization were 21.6% (95% CI, 21.3%-21.8%), 5.0% (95% CI, 4.9%-5.2%), 2.2% (95% CI, 2.1%-2.3%), and 15.4% (95% CI, 15.2%-15.7%), respectively. With optimized statin treatment, projected absolute reductions in these incidences were 1.3% (95% CI, 0.9%-1.7%), 0.8% (95% CI, 0.7%-1.0%), 0.2% (95% CI, 0.1%-0.3%), and 2.3% (95% CI, 2.0%-2.7%), respectively. With optimized statin and ezetimibe treatment, projected absolute reductions were 1.8% (95% CI, 1.2%-2.4%), 1.1% (95% CI, 0.9%-1.3%), 0.3% (95% CI, 0.2%-0.4%), and 3.1% (95% CI, 2.6%-3.6%), respectively. Conclusions and Relevance: In this cohort study of veterans with CAD, suboptimal LLT was prevalent in the clinical setting. Optimization of statin therapy was projected to produce clinically relevant reductions in the risks of death and cardiovascular events. Despite a lesser lipid-lowering efficacy of ezetimibe, its widespread use on a population level in conjunction with optimized statin therapy may be associated with further meaningful reductions in cardiovascular risk.
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Enfermedad de la Arteria Coronaria , Inhibidores de Hidroximetilglutaril-CoA Reductasas , Infarto del Miocardio , Veteranos , Estados Unidos/epidemiología , Masculino , Humanos , Anciano , Enfermedad de la Arteria Coronaria/tratamiento farmacológico , Enfermedad de la Arteria Coronaria/epidemiología , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , LDL-Colesterol , Estudios de Cohortes , Ezetimiba/uso terapéuticoRESUMEN
Microorganisms create various health issues; semiconductor nanostructures have raised interest because of antimicrobial properties for suppressing microbial growth. Herein, we report the synthesis of ZnSe nanostructures (NSs) using a green coprecipitation method, and the as-synthesized samples were annealed at 100, 150, and 200 °C temperatures. The synthesized samples were analyzed for structural, morphological, optical, and antibacterial properties. The growth of nanorods was confirmed by TEM micrographs and that of nanoparticles by FESEM and TEM micrographs. The cubic zinc blender phase of samples was confirmed by XRD. The high-intensity electron-phonon (e-ph) interactions and LO modes were confirmed by the Raman spectra. The UV-visible absorption spectra predicted the blue shift in optical band gaps of ZnSe NSs from their bulk counterparts. The PL spectra and associated CIE diagram indicated that the as-synthesized and annealed NSs produce blue color. The investigated antimicrobial activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus implies the superior biological activity of the as-synthesized and annealed samples at 200 °C. The annealing enhances photoluminescence and antimicrobial activities of ZnSe NSs. The enhanced luminscence properties of ZnSe NSs make them suitable for preparing more efficient blue LEDs and lasers for medical applications. The as-synthesized and annealed ZnSe NSs are found effective against the growth of microorganisms, and sustaining this tendency for 1 week provides a strong basis for the development of new drugs against bacterial infections for supporting the pharmaceutical industry.
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We conducted a multi-center pragmatic trial of a low-risk intervention focused on medication adherence using an opt-out consent approach, where patients could opt out by letter and then electronically. We focus on the cohort after opt-out by mail. Here, we describe that 8% of patients opted out electronically, resulting in a 92% participation rate. Patients who self-identify as Black or Hispanic were less likely to opt out in the study, and half the study cohort was female. This demographic data is useful for planning future trials employing this approach.
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Consentimiento Informado , Proyectos de Investigación , Humanos , FemeninoRESUMEN
To preserve the environment and to prevent the damage caused by packaging materials, the development of biodegradable, organic, and nano-active films for packaging is progressively being accentuated. As the demand for getting fresh and preservative-free food is increasing, an improved level of clarity and stability for consumers about the packaging is required. Presently, oxygen scavengers are used in the form of films, sachets, powders, or as part of the packaging material itself along with other means of preservation such as the use of chemicals, reduced water activity, pH, multilayer composite material, and or vacuum or modified packaging. Today's current demand increases their incorporation directly into the packaging material rather than being a part of the food itself. The present review, therefore, is based on the availability of types of natural sources of oxygen scavenging systems like antioxidants, and nano iron, and their possible scope of use in the food packaging industry.
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Introduction: Morphometric studies of the auricle find its place in many areas, such as esthetics, forensic medicine, biology, anthropology, mythology, arts, and acupuncture. Aims and Objective: This study aims at establishing the anatomical variations in the auricular dimensions in North Indian population. The objectives of this study were to measure auricle height in males and females, to measure auricle width in both sexes, to measure lobular height (LH) in both sexes, to measure lobular width (LW) in both sexes, to calculate the auricle index in both sexes, and to calculate lobular index in both sexes. Materials and Methods: This study was conducted on 130 subjects (78 males and 52 females), in the age group of 18-25 years, without history of genetic disorders, injuries, or any disease of the auricle. Results: The average length of the auricle was 6.28 cm (right) and 6.23 cm (left), and the average width was 3.21 cm (right) and 3.28 cm (left). The average height of the lobule was 1.76 cm and 1.77 cm on the right and left sides, respectively, while the lobule width was 1.90 cm on the right side and 2.01 cm on the left side. Conclusion: Total right auricle height and total auricle width of both the right and left ears are more in males as compared to females, and the difference between both the sides was significant. Both right- and left-side LH and LW were higher in males as compared to females.
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Circadian alignment of rest-activity rhythms is an essential biological process that may be vulnerable to misalignment in critically ill patients. We evaluated circadian rest-activity rhythms in critically ill patients and their association with baseline (e.g. age) and clinical (e.g. mechanical ventilation status) variables, along with intensive care unit light-dark cycles. Using wrist actigraphy, we collected 48-hr activity and light exposure data from critically ill patients in a tertiary care medical intensive care unit. We evaluated circadian rest-activity rhythms using COSINOR and non-parametric circadian rhythm analysis models, and stratified these data across baseline and clinical variables. We used linear regression to evaluate the association of circadian rest-activity and light-dark exposure rhythms. In COSINOR and non-parametric circadian rhythm analysis analyses, the 34 medical intensive care unit patients completing 48-hr actigraphy recordings exhibited mean MESOR (mean activity levels of a fitted curve) and amplitudes of 0.50 ± 0.32 and 0.20 ± 0.19 movements per 30-s epoch, with high interdaily variability. Patients who were older, mechanically ventilated, sedated, restrained and with higher organ failure scores tended to exhibit greater circadian rest-activity misalignment, with three of 34 (9%) patients exhibiting no circadian rhythmicity. Circadian light-dark exposure misalignment was observed as well and was associated with rest-activity misalignment (p = 0.03). Critically ill patients in our MICU experienced profound circadian rest-activity misalignment, with mostly weak or absent rhythms, along with circadian light-dark exposure misalignment. Potentially modifiable factors contributing to rest-activity misalignment (i.e. mechanical ventilation, restraints, low daytime light levels) highlight possible targets for future improvement efforts.
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Actigrafía , Enfermedad Crítica , Ritmo Circadiano , Humanos , Unidades de Cuidados Intensivos , FotoperiodoRESUMEN
AIMS: Special drive campaigns on substance use disorders (SUDs) in India are usually organized in educational institutes, non-governmental organizations, or few selected localities. Hard to reach communities of construction, prison, and industrial sites quite often remain uncovered. MATERIALS AND METHODS: During a month-long special drive in 2019, under a cross-sectional study, we reached these communities of Solan town through awareness camps and incorporated standardized screening tools for evaluating morbidity patterns of SUDs. RESULTS: Statistically significant relationship existed between 360 participants (90.8% males, 9.2% females; mean age of 33 years) and their educational levels with χ2 (1, n = 360) =130.59, P = 0.000. Fagerstrom's scale inferred very high nicotine dependence in 10.6%, 7.9%, and 2.4% of prisoners, industrial workers, and laborers, respectively. Whereas, Fagerstrom scale for smokeless tobacco revealed 31% of significant dependence potential amongst laborers. Alcohol use disorder identification test revealed 28 persons with harmful alcohol dependence. Drug abuse screening test revealed 13.6% of prisoners having moderate level drug abuse potential. The Kruskal-Wallis test showed a statistically significant difference, in levels and potential of substance use in construction, prison, and industrial sites. CONCLUSION: The study proved the utility of special drives in evaluating SUDs morbidity patterns in hard-to-reach communities.
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BACKGROUND: In the intensive care unit (ICU), inactivity is common, contributing to ICU-acquired weakness and poor outcomes. Actigraphy may be useful for measuring activity in the ICU. OBJECTIVES: To use actigraphy to characterize inactivity and activity in critically ill patients. METHODS: This prospective observational study involved 48-h wrist actigraphy in medical ICU (MICU) patients, with activity data captured across 30-s epochs. Inactivity (zero-activity epochs) and activity (levels of non-zero activity) were summarized across key patient (e.g., age) and clinical (e.g., mechanical ventilation status) variables, and compared using multivariable regression. RESULTS: Overall, 189,595 30-s epochs were collected in 34 MICU patients. Zero-activity (inactivity) comprised 122,865 (65%) of epochs; these epochs were 24% and 13% more prevalent, respectively, in patients receiving mechanical ventilation (versus none, p < 0.001) and in the highest (versus lowest) organ failure score tertile (p = 0.03). Ambulatory (versus non-ambulatory) patients exhibited more non-zero activity (35 more movements per epoch, p < 0.001), while those in the highest (versus lowest) organ failure score tertile exhibited less activity (22 fewer movements per epoch, p = 0.03). Significant inactivity/activity differences were not observed when evaluated based on age, sedation, or restraint status. CONCLUSIONS: Actigraphy demonstrated that MICU patients are profoundly inactive, including those who are young, non-sedated and non-restrained. Hence, ICU-specific, non-patient-related factors may contribute to inactivity, an issue requiring further investigation.
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Actigrafía , Unidades de Cuidados Intensivos , Cuidados Críticos , Enfermedad Crítica , Humanos , Tiempo de Internación , Respiración ArtificialRESUMEN
Nocardiosis is an uncommon gram-positive bacterial infection caused by aerobic actinomycetes of the genus Nocardia. It can be localized or systemic and is regarded as an opportunistic infection that is commonly seen in immunocompromised hosts. We report a case of disseminated nocardiosis caused by Nocardia cyriacigeorgica in a patient with underlying malignancy in whom the clinical presentation was highly suggestive of a metastatic disease.
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OBJECTIVE: Evaluate the role of baseline serum luteinizing hormone (LH) in predicting the success of in-vitro fertilization (IVF) in terms of clinical pregnancy and live birth rate. METHODS: Women who underwent IVF and/or intracytoplasmic sperm injection (ICSI), following either the agonist or the antagonist protocol, were retrospectively evaluated over a period of two years at the All India Institute of Medical Sciences, New Delhi. We investigated the correlation of serum LH levels in the follicular phase with pregnancy outcomes. A P-value lower than 0.05 was considered as statistically significant. RESULTS: The individuals (351) were divided into four groups based on LH and FSH baseline values, and the levels were correlated with clinical pregnancy and live births. The highest clinical pregnancy rate (25%) was achieved in women with low LH (< 2IU/l); whereas the miscarriage rate was almost similar in all the groups. The pregnancy rate was the lowest (16%) in women with high LH levels (> 8IU/L). Pregnancy rates were intermediate (20%) if LH was intermediate (2-8IU/L). However, none of the results had statistical significance. CONCLUSIONS: Early follicular serum LH levels before an IVF/ICSI treatment cycle did not have any clear relationship with clinical pregnancy or live birth rates.
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Fertilización In Vitro/estadística & datos numéricos , Nacimiento Vivo/epidemiología , Hormona Luteinizante/sangre , Adulto , Femenino , Humanos , India , Masculino , Embarazo , Estudios Retrospectivos , Inyecciones de Esperma Intracitoplasmáticas , Adulto JovenRESUMEN
Background: Vegetative transjugular intrahepatic portosystemic shunt (TIPS) infections are a rare complication of TIPS placement. Cases have been reported in the literature and one study estimated incidence to be 1%.1 The vast majority of cases were reported in the setting of cirrhosis. Here, we report a case of vegetative polymicrobial TIPS infection refractory to broad spectrum antibiotics in a patient with a prior hepaticojejunostomy anastomosis as part of a Whipple procedure for a pancreatic neuroendocrine tumor. Case Presentation: A 40-year-old gentleman with pancreatic neuroendocrine tumor underwent neoadjuvant chemoradiation therapy and became eligible for tumor resection. A pancreaticoduodenectomy (Whipple resection) with en bloc superior mesenteric vein (SMV) and portal vein-splenic vein confluence resection was performed. The patient developed SMV stenosis, and a TIPS was placed to access the SMV for stent placement. The patient eventually developed recurrent fevers because of Escherichia coli and Enterococcal bacteremia that did not resolve with extended courses of various antibiotics, including meropenem, vancomycin, daptomycin, ertapenem, caspofungin, and piperacillin-tazobactam. The TIPS was eventually removed with an interventional radiology procedure; however, the patient ultimately succumbed to sepsis from antibiotic-resistant bacteria. Conclusion: Here we present a case of endotipsitis in a patient with a biliary enteric anastomosis who did not respond to antibiotic therapy. We caution the use of TIPS in patients with this anatomy, as the biliary tree is inevitably colonized with enteric bacteria and in contact with the intraparenchymal hardware of the TIPS.
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BACKGROUND: Molecular methods which allow for rapid and reliable detection of drug resistance have yet not been sufficiently evaluated for timely management of patients with tuberculous meningitis. AIMS: We aimed to evaluate Geno Type MTBDRplus line probe assay for early detection of drug resistance in Mycobacterium tuberculosis isolates and CSF samples of confirmed tuberculous meningitis patients. SETTINGS AND DESIGN: This was a multicentric prospective study carried out from July 2011 to December 2013 in tertiary care hospitals of Delhi. MATERIALS AND METHODS: The assay was performed on 89 M. tuberculosis isolates and 31 direct CSF samples from microbiologically confirmed tuberculous meningitis patients. The sensitivity and specificity of this assay was calculated in comparison to drug susceptibility testing by BACTEC MGIT 960 system. RESULTS: The sensitivity, specificity for detection of resistance to Isoniazid was 93%, 97% and to Rifampicin was 80%, 98.8%, respectively by this assay in comparison with the phenotypic drug susceptibility testing. The line probe assay could detect M. tuberculosis in 55% of CSF samples from patients with microbiologically confirmed tuberculous meningitis. Only 5/89 isolates (5.6%) were resistant to both Isoniazid and Rifampicin while 9/89 (10%) isolates were additionally resistant to Isoniazid. Resistance to any of the drugs, namely Isoniazid, Rifampicin, Streptomycin or Ethambutol, was seen in 24.7% of strains. CONCLUSION: The line probe assay has a good sensitivity and specificity for detection of drug resistance to Isoniazid and Rifampicin in M. tuberculosis culture isolates. However, this assay has limited role in detection of M. tuberculosis and drug resistance from direct samples with confirmed diagnosis of tuberculous meningitis.
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Malassezia, a skin colonizer, is associated with multiple skin disorders in adults, and cephalic pustulosis and folliculitis in children. It can cause fungemia in infants and neonates. The time and pattern of colonization, risk factors associated with colonization and causing fungemia in children, are not well understood. The prospective cohort study was conducted to determine the rate of Malassezia species colonization and associated factors in hospitalized neonates and infants. Consecutive 50 neonates and infants admitted in neonatal and pediatric intensive care units were studied. The skin swabs were collected on the day of admission and every fifth day, thereafter, till the patient was discharged or died. Putative risk factors for the colonization of Malassezia species were recorded. Isolates were identified by phenotypic methods and sequencing of the D1 and D2 region of rDNA. Neonates were not colonized at the time of entry in neonatal ICU or at birth. Nineteen (38 %) neonates were colonized with Malassezia species during their hospital stay. Among the infants, three (6 %) came to ICU with Malassezia colonization and 26 (52 %) acquired Malassezia during ICU stay. Mechanical ventilation, duration of hospital stay, central venous catheterization, and antifungal therapy were the significantly associated factors for colonization. Malassezia furfur was the most common species isolated from the skin of infants and neonates. Colonization by Malassezia species in infants and neonates in a hospital is not uncommon and can be a potential source of nosocomial infection.
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Dermatomicosis/epidemiología , Malassezia/aislamiento & purificación , Piel/microbiología , Estudios de Cohortes , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , ADN de Hongos/química , ADN de Hongos/genética , ADN Ribosómico/química , ADN Ribosómico/genética , Dermatomicosis/microbiología , Femenino , Humanos , India/epidemiología , Lactante , Recién Nacido , Malassezia/clasificación , Malassezia/genética , Masculino , Datos de Secuencia Molecular , Prevalencia , Estudios Prospectivos , Factores de Riesgo , Análisis de Secuencia de ADN , Centros de Atención TerciariaRESUMEN
AIM: The aim of this study was to assess the role of total serum estradiol on the day of injection HCG, estradiol per mature follicle, and estradiol per oocytes retrieved (OR) on clinical pregnancy rate (CPR) and oocyte/embryo quality in assisted reproduction. MATERIALS AND METHODS: A retrospective review of 342 in vitro fertilization cycles with normal ovarian reserve in women who underwent long GnRH agonist protocol was included. The outcomes assessed are number of OR, number of mature oocytes (MO), number of oocytes fertilized (FO), fertilization rate, number of embryos cleaved (EC), cleavage rate (CR), number of Grade I embryos (E), number of cryopreserved embryos (CPE), and CPR. The Estradiol/follicle ratio (E2/fol) was defined as estradiol level per mature follicle >14 mm in diameter. Estradiol/oocyte (E2/O) ratio was defined as estradiol level per OR. These two ratios were categorized by the 25th percentile into four groups. RESULTS: A positive correlation was seen between E2/fol and OR (r = .334, p value = .0001), MO (r = .335, p value = .0001), FO (r = .222, p value = .002), and CPE (r = .289, p value = .0001). Increased CPR was seen in Group C (E2/fol = 200-299.99) compared to Group A, B, and D (p value = .033). With E2/O ratio, negative correlation was seen between E2/O and OR (r = -.281, p value = .002), MO (r = -.296, p value = .008), FO (r = -.220, p value = .003), EC (r = -.211, p value = .004), Grade 1 embryo (r = -.216, p value = .001), and CPE (r = -.206, p value = .005). No difference in FR, CR, or CPR was seen. No difference was seen in CPR with total serum estradiol. CONCLUSIONS: In conclusion, serum estradiol is an important determinant of IVF success. While total serum estradiol does not exert any positive or negative influence on IVF outcome, estradiol per mature follicle and retrieved oocytes do have an impact. Pregnancy rate is better when E2/fol is between 200 and 299.99 pg/ml. Also, increasing serum E2/fol positively correlates with better oocytes and embryo quality. In contrast, E2/O negatively correlates with oocytes and embryo quality parameters.
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Paraneoplastic cerebellar degeneration (PCD) is an immune-mediated paraneoplastic disorder affecting the cerebellum. PCD associated with ovarian malignancy is a rare occurrence with fewer than 100 cases reported in published work. PCD patients express anti-Yo antibody, one of the anti-onconeuronal antibodies which is most likely associated with gynecologic or breast malignancies. In this report, we present the case of a 65-year-old postmenopausal woman presenting with acute symptoms of PCD as a first sign of ovarian malignancy.
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Neoplasias Ováricas/complicaciones , Degeneración Cerebelosa Paraneoplásica/etiología , Anciano , Femenino , Humanos , Degeneración Cerebelosa Paraneoplásica/terapiaRESUMEN
Sister Mary Joseph's nodule, a term coined by Sir Hamilton Bailey, describes the umbilical nodule associated with advanced intra-abdominal malignancy. It signifies extensive intra-abdominal disease with a poor prognosis and a median survival of 4-14 months. We describe a case in which discharge from umbilical nodule was the first sign of recurrence in carcinoma ovary. On laparotomy, besides extra-abdominal umbilical deposit there was no peritoneal disease.
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Adenocarcinoma Papilar/diagnóstico , Adenocarcinoma Papilar/patología , Recurrencia Local de Neoplasia/diagnóstico , Recurrencia Local de Neoplasia/patología , Neoplasias Ováricas/diagnóstico , Neoplasias Ováricas/patología , Nódulo de la Hermana María José/diagnóstico , Nódulo de la Hermana María José/patología , Adenocarcinoma Papilar/cirugía , Femenino , Humanos , Histerectomía , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Ováricas/cirugía , Ovariectomía , Reoperación , Salpingectomía , Ombligo/patología , Ombligo/cirugíaRESUMEN
CONTEXT: Aberrant expression of miRNAs has emerged as an important hallmark of cancer. OBJECTIVES: We evaluated the clinical significance of circulating and tissue miR-107 expression in esophageal squamous cell carcinoma (ESCC) patients. MATERIALS AND METHODS: Quantitative real-time PCR was used to analyze the expression of miR-107 and its bioinformatically identified targets, PIM-1 and CDC42. RESULTS: Significant downregulation of miR-107 was observed in neoplastic and preneoplastic esophageal tissues (p = 0.004). Relative levels of circulating miR-107 significantly distinguished ESCC patients from normal subjects (p = 0.007). Significant inverse correlation was observed between miR-107 and PIM1 expression (r = -0.398; p = 0.015) suggesting PIM1 to be the downstream target of miR-107. DISCUSSION AND CONCLUSION: Our results, for the first time, document that the miR-107 levels may discriminate ESCC patients from healthy individuals emphasizing its diagnostic potential.
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Biomarcadores de Tumor/metabolismo , Carcinoma de Células Escamosas/metabolismo , Neoplasias Esofágicas/metabolismo , MicroARNs/metabolismo , Adulto , Anciano , Biomarcadores de Tumor/sangre , Carcinoma de Células Escamosas/sangre , Regulación hacia Abajo , Neoplasias Esofágicas/sangre , Neoplasias Esofágicas/genética , Femenino , Humanos , Masculino , MicroARNs/sangre , MicroARNs/genética , Persona de Mediana Edad , Reacción en Cadena en Tiempo Real de la PolimerasaRESUMEN
RATIONALE: Central CB1 cannabinoid receptors regulate anxiety-like and appetitive consummatory behaviors. Pharmacological antagonism/inverse-agonism of CB1 receptors increases anxiety and decreases appetitive behaviors; however, neither well-defined dose nor context dependence of these effects has been simultaneously assessed in one behavioral assay. OBJECTIVES: We sought to determine the context and dose dependence of the effects of CB1 receptor blockade on anxiety-like and consummatory behaviors in a model that allowed for simultaneous detection of anxiety-like and consummatory-related behaviors. METHODS: We determined the effects of the CB1 receptor antagonist/inverse-agonist, rimonabant, in the novelty-induced hypophagia (NIH) assay in juvenile male ICR mice. RESULTS: Rimonabant dose-dependently decreased consumption of a palatable reward solution completely independent of contextual novelty. Grooming and scratching behavior was also increased by rimonabant in a context-independent manner. In contrast, rimonabant increased feeding latency, a measure of anxiety-like behaviors, only in a novel, mildly anxiogenic context. The effects of rimonabant were specific since no effects of rimonabant on despair-like behavior were observed in the tail suspension assay. Blockade of CB2 receptors had no effect on novelty-induced increases in feeding latency or palatable food consumption. CONCLUSIONS: Our findings indicate that CB1 receptor blockade decreases the hedonic value of palatable food irrespective of environmental novelty, whereas the anxiogenic-like effects are highly context-dependent. Blockade of CB2 receptors does not regulate either anxiety-like or consummatory behaviors in the NIH assay. These findings suggest that rimonabant modulates distinct and dissociable neural processes regulating anxiety and consummatory behavior to sculpt complex and context-dependent behavioral repertories.