Abstract:
INTRODUCTION:Nicotinic acetylcholine receptors are present in the cerebral white matter (WM). We hypothesized that WM response to nicotine can be detected by diffusion tensor imaging (DTI); and that such responses may be associated with nicotine-led cognitive enhancement in sustained attention. METHODS:A randomized, nicotine-placebo patch, crossover, double-blind clinical trial in two non-overlapping cohorts of smokers was used to test the hypothesis. The discovery cohort consisted of 39 subjects (N = 20/19 controls/schizophrenic patients, age = 36.8 ± 10.1 years) and the replication cohorts consisted of 38 healthy smokers (31.7 ± 10.5 years). WM integrity was measured by fractional anisotropy (FA) values for the whole brain and nine preselected WM tracts using tract-based-spatial-statistics. RESULTS:Nicotine significantly enhanced FA values for the genu of corpus callosum compared with placebo (ΔFAgenu) (p = 0.01) in smokers with low recent smoking exposure as measured by low average cotinine level. This finding was replicated in the second cohort (p = 0.02). ΔFAgenu values explained 22% of variance in performance of a sustained attention task during the nicotine session (p = 0.006). However, this effect was limited to schizophrenia patients (r = 0.62 and 0.09; p = 0.003 and 0.7 for patients and controls, respectively). CONCLUSION:Acute pharmacological influence of nicotine patch on WM integrity appeared present, but was dependent on nicotine intake from recent smoking. Change in the WM integrity in the genu of corpus callosum was associated with a significant proportion of variability of nicotine-led changes in sustained attention/working memory of the smokers. Further studies will be necessary to understand biophysical underpinning of the nicotine-related changes in FA.
journal_name
Front Pharmacoljournal_title
Frontiers in pharmacologyauthors
Kochunov P,Du X,Moran LV,Sampath H,Wijtenburg SA,Yang Y,Rowland LM,Stein EA,Hong LEdoi
10.3389/fphar.2013.00117subject
Has Abstractpub_date
2013-09-18 00:00:00pages
117issn
1663-9812journal_volume
4pub_type
杂志文章abstract::Background: D-dimer is a small protein fragment and high levels of D-dimer have been associated with increased mortality in patients presenting to emergency departments with infection. Previous studies have reported increased levels of D-dimer in COVID-19; however, it is unclear whether an increased D-dimer level prov...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.600592
更新日期:2020-12-21 00:00:00
abstract::Biopeptides derived from marine species have garnered significant research interest owing to their anti-inflammatory, antibacterial, and anticancer activities. In our previous study, Hydrostatin-SN1, a bioactive peptide extracted from the Hydrophis cyanocinctus venom gland T7 phage display library, demonstrated anti-i...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.00930
更新日期:2020-06-19 00:00:00
abstract:Background:Model-informed precision dosing (MIPD) can serve as a powerful tool during therapeutic drug monitoring (TDM) to help individualize dosing in populations with large pharmacokinetic variation. Yet, adoption of MIPD in the clinical setting has been limited. Overcoming technologic hurdles that allow access to MI...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.00551
更新日期:2020-04-29 00:00:00
abstract:BACKGROUND:Abiraterone Acetate (AA) is approved for the treatment of mCRPC after failure of androgen deprivation therapy in whom chemotherapy is not yet clinically indicated and for treatment of mCRPC progressed during or after docetaxel-based chemotherapy regimen. The aim of this study is to evaluate the role of early...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2016.00123
更新日期:2016-05-18 00:00:00
abstract::Non-resolving inflammation is the main mechanism of morbidity and mortality among patients suffering from cystic fibrosis (CF), the most common life-threatening human genetic disease. Resolution of inflammation is an active process timely controlled by endogenous specialized pro-resolving lipid mediators (SPMs) produc...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2019.00252
更新日期:2019-04-02 00:00:00
abstract::Osteosarcoma (OS) is the most common bone cancer worldwide. There is evidence that microRNA-409 (miR-409-3p) is involved in tumorigenesis and cancer progression, however, its possible role in OS requires clarification. In the present study, we evaluated the expression level, clinical significance, and mode of action o...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.00137
更新日期:2019-02-21 00:00:00
abstract::A large and growing body of literature has focused on the association between "white coat hypertension" (WCH) and the underlying target organ damage. The evidence suggests that WCH is may not an entirely benign phenomenon. However, whether patients with WCH should receive antihypertensive drugs is unresolved. Therefor...
journal_title:Frontiers in pharmacology
pub_type:
doi:10.3389/fphar.2020.570101
更新日期:2020-09-17 00:00:00
abstract:Background:Depression and dementia are common incapacitating diseases in old age. The exact nature of the relationship between these conditions remains unclear, and multiple explanations have been suggested: depressive symptoms may be a risk factor for, a prodromal symptom of, or a coincidental finding in dementia. The...
journal_title:Frontiers in pharmacology
pub_type:
doi:10.3389/fphar.2020.00034
更新日期:2020-02-07 00:00:00
abstract::Lapatinib and capecitabine have been widely used in the therapy of breast cancer. However, long-term use of lapatinib and capecitabine often causes the most common side effect diarrhea, which limit the medicine use. Fructus mume (F. mume) has been proved to be effective to treat chronic diarrhea with few side effects....
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00516
更新日期:2018-05-23 00:00:00
abstract::Background: New treatment platforms that can prevent acute respiratory distress syndrome (ARDS) or reduce its mortality rate in high-risk coronavirus disease 2019 (COVID-19) patients, such as those with an underlying cancer, are urgently needed. Rejuveinix (RJX) is an intravenous formulation of anti-oxidants and anti-...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.594321
更新日期:2020-11-10 00:00:00
abstract::Despite an improved understanding of the genetic background and the pathomechanisms of amyotrophic lateral sclerosis (ALS) no novel disease-modifying therapies have been successfully implemented in clinical routine. Riluzole still remains the only clinically approved substance in human ALS treatment with limited effic...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00017
更新日期:2017-01-31 00:00:00
abstract::Drug scheduling within the international system of drug control and national legislation has been recently criticized as having insufficient footing in scientific evidence. The legal harms related to non-medical uses of certain drugs (e.g., cannabis) have arguably exceeded their physiological and social harmfulness co...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00898
更新日期:2018-08-20 00:00:00
abstract::The ecto-5'-nucleotidase (ecto-5'NT/CD73) represents a crucial enzyme for endogenous adenosine generation. Several findings have shown that CD73 plays an important role in regulating vascular permeability and immune cell function. Adenosine 5'-(α,β-methylene)diphosphate (APCP) is a CD73 inhibitor, widely used as pharm...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.00775
更新日期:2019-07-11 00:00:00
abstract::The hepatotoxicity induced by Polygoni Multiflori Radix Praeparata (PM) has aroused great concern throughout the world. Hence, it is worthwhile to perform studies on the detoxification with the combined use of medicinal herbs based on the compatibility theory of traditional Chinese medicine. In this work, the rat mode...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2016.00386
更新日期:2016-10-18 00:00:00
abstract::Chemotherapy-induced peripheral neuropathy (CIPN) is a severe, toxic side effect that frequently occurs in anticancer treatment and may result in discontinuation of treatment as well as a serious reduction in life quality. The CIPN incidence rate is as high as 85-90%. Unfortunately, there is currently no standard evid...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.00365
更新日期:2019-04-09 00:00:00
abstract::Metabotropic glutamate (mGlu) receptor 5 is involved in neuroinflammation and has been shown to mediate reduced inflammation and neurotoxicity and to modify microglia polarization. On the other hand, blockade of mGlu5 receptor results in inhibition of microglia activation. To dissect this controversy, we investigated ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00812
更新日期:2017-11-09 00:00:00
abstract:Background:Among factors influencing the higher risk of developing unknown or rare adverse drug reactions (ADRs) among children and adolescents, there is the frequent off-label use of drugs that seems to be very common in pediatric oncological patients. Our study aim to collect and evaluate data on the safety profile o...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.00621
更新日期:2020-05-07 00:00:00
abstract:Background:As the original compound of many podophyllotoxin derivatives, podophyllotoxin has a beneficial antitumor effect. The mechanism of podophyllotoxin activity in triple-negative breast cancer still needs to be explored. Methods:We used cell proliferation assay, scratch and transwell experiments, and cell cycle ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.01211
更新日期:2020-08-07 00:00:00
abstract::Background: Total flavonoids of Rhizoma Drynariae (TFRD), extracted from the kidney-tonifying traditional Chinese medicine Rhizoma Rrynariae, has been proved to be effective in treating osteoporosis, bone fractures and defects. However, pharmacological effects of TFRD on type H vessels, angiogenic-osteogenic coupling ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.503524
更新日期:2020-11-27 00:00:00
abstract::Natural brain repair after stroke is extremely limited, and current therapeutic options are even more scarce with no clinical break-through in sight. Despite restricted regeneration in the central nervous system, we have previously proved that human umbilical cord blood mono-nuclear cells (UCB-MC) transduced with aden...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00111
更新日期:2018-02-15 00:00:00
abstract::Over the years chemotherapy failure has been a vital research topic as researchers have been striving to discover reasons behind it. The extensive studies carried out on chemotherapeutic agents confirm that resistance to chemotherapy is a major reason for treatment failure. "Resistance to chemotherapy," however, is a ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2016.00535
更新日期:2017-01-10 00:00:00
abstract::The immunotherapy agent pembrolizumab has been approved for gastric cancer (GC) patients with recurrent or advanced disease who are PD-L1 positive. Mutations in the primary lesion may drive the expression of immune targets thereby priming the tumor to therapeutic sensitivity. In this study, we aimed to uncover mutatio...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.01522
更新日期:2019-01-08 00:00:00
abstract::There is a growing interest in the pharmaceutical industry to design novel tailored drugs for RNA targeting. The vertebrate-specific RNase A superfamily is nowadays one of the best characterized family of enzymes and comprises proteins involved in host defense with specific cytotoxic and immune-modulatory properties. ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.01170
更新日期:2019-10-09 00:00:00
abstract::Background and Aims:Kickxia ramosissima (Wall.) Janch (or Nanorrhinum ramosissimum (Wall.) Betsche is a well-known medicinal plant in Pakistan that is traditionally used in diabetic and inflammatory conditions. Because little information is available on its phytochemical composition, a range of constituents were isola...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00232
更新日期:2017-05-01 00:00:00
abstract::The assessment report formats of four major regulatory reference agencies, US Food and Drug Administration, European Medicines Agency, Health Canada, and Australia's Therapeutic Goods Administration were compared to a benefit-risk (BR) documentation template developed by the Centre for Innovation in Regulatory Science...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2014.00269
更新日期:2014-12-04 00:00:00
abstract::Patient-derived cell lines and animal models have proven invaluable for the understanding of human intestinal diseases and for drug development although both inherently comprise disadvantages and caveats. Many genetically determined intestinal diseases occur in specific tissue microenvironments that are not adequately...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2016.00334
更新日期:2016-09-22 00:00:00
abstract::Dizocilpine (MK-801) is a non-competitive NMDA antagonist that induces schizophreniclike effects. It is therefore widely used in experimental models of schizophrenia including prepulse inhibition (PPI) impairments in rodents. Nevertheless, MK-801 has never been tested in monkeys on a PPI paradigm. In order to evaluate...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2015.00204
更新日期:2015-09-22 00:00:00
abstract::Positive links have been found between periodontitis and numerous diseases in humans via persistent inflammation throughout the body. However, the main factors responsible for maintaining this pro-inflammatory condition are poorly understood. The spleen, the largest secondary immune organ, is a central hub regulating ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00470
更新日期:2017-07-17 00:00:00
abstract::Background: Inhibiting proliferation and inducing apoptosis of myofibroblasts is becoming one of the promising and effective ways to treat hypertrophic scar. ABT-263, as an orally bioavailable BCL-2 family inhibitor, has showed great antitumor characteristics by targeting tumor cell apoptosis. The objective of this st...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.615505
更新日期:2021-01-14 00:00:00
abstract::The interplay between drugs and cell metabolism is a key factor in determining both compound potency and toxicity. In particular, how and to what extent transmembrane transporters affect drug uptake and disposition is currently only partially understood. Most transporter proteins belong to two protein families: the AT...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.01011
更新日期:2018-09-07 00:00:00