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  1. Article: Development of gemcitabine-modified miRNA mimics as cancer therapeutics for pancreatic ductal adenocarcinoma.

    Yuen, John G / Hwang, Ga-Ram / Fesler, Andrew / Intriago, Erick / Pal, Amartya / Ojha, Anushka / Ju, Jingfang

    Molecular therapy. Oncology

    2024  Volume 32, Issue 1, Page(s) 200769

    Abstract: Despite the recent advancement in diagnosis and therapy, pancreatic ductal adenocarcinoma (PDAC), the most common type of pancreatic cancer, is still the most lethal cancer with a low five-year survival rate. There is an urgent need to develop new ... ...

    Abstract Despite the recent advancement in diagnosis and therapy, pancreatic ductal adenocarcinoma (PDAC), the most common type of pancreatic cancer, is still the most lethal cancer with a low five-year survival rate. There is an urgent need to develop new therapies to address this issue. In this study, we developed a treatment strategy by modifying tumor suppressor miRNAs, miR-15a and miR-194, with the chemotherapeutic gemcitabine (Gem) to create Gem-modified mimics, Gem-miR-15a and Gem-miR-194, respectively. In a panel of PDAC cell lines, we found that Gem-miR-15a and Gem-miR-194 induce cell-cycle arrest and apoptosis, and these mimics are potent inhibitors with IC
    Language English
    Publishing date 2024-01-26
    Publishing country United States
    Document type Journal Article
    ISSN 2950-3299
    ISSN 2950-3299
    DOI 10.1016/j.omton.2024.200769
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Treatment Options in Mal de Débarquement Syndrome: A Scoping Review.

    Kinkhabwala, Corin M / Yuen, Erick / Brennan, Emily / Cadena, Angel / Rizk, Habib G

    Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology

    2023  Volume 44, Issue 4, Page(s) e197–e203

    Abstract: Objective: The purpose of this study was to review current treatment options available for mal de debarquement syndrome (MdDS).: Data sources: Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Review ... ...

    Abstract Objective: The purpose of this study was to review current treatment options available for mal de debarquement syndrome (MdDS).
    Data sources: Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Review guidelines, we performed systematic search queries for MdDS-related texts. Documents must have been in the English language, and the time frame was all documents up until May 23, 2022.
    Methods: Studies were selected if they were published in a peer-reviewed journal and if one of the primary objectives was the assessment of treatment for MdDS. The quality and validity of all documents were assessed by two independent co-investigators. Conflicts were resolved by a third investigator.
    Results: One hundred ninety-four unique references were identified and underwent review. Ninety-seven were selected for full-text review, and 32 studies were ultimately included. Data were stratified by treatment methodology for MdDS. The categories used were pharmacologic, physical therapy, and neuromodulating stimulation.
    Conclusions: Improvement in patient-reported outcomes is reported with several treatment modalities including specific protocols of vestibular rehabilitation, neuromodulating stimulation, and pharmacologic management with several types of neurotropic drugs.
    MeSH term(s) Humans ; Travel-Related Illness ; Neurotransmitter Agents/therapeutic use ; Rehabilitation ; Physical Therapy Modalities
    Chemical Substances Neurotransmitter Agents
    Language English
    Publishing date 2023-02-15
    Publishing country United States
    Document type Systematic Review ; Review ; Journal Article
    ZDB-ID 2036790-9
    ISSN 1537-4505 ; 1531-7129
    ISSN (online) 1537-4505
    ISSN 1531-7129
    DOI 10.1097/MAO.0000000000003832
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book ; Online: Energy-Efficient Data Offloading for Earth Observation Satellite Networks

    He, Lijun / Jia, Ziye / Wang, Juncheng / Wang, Feng / Lansard, Erick / Yuen, Chau

    2024  

    Abstract: In Earth Observation Satellite Networks (EOSNs) with a large number of battery-carrying satellites, proper power allocation and task scheduling are crucial to improving the data offloading efficiency. As such, we jointly optimize power allocation and ... ...

    Abstract In Earth Observation Satellite Networks (EOSNs) with a large number of battery-carrying satellites, proper power allocation and task scheduling are crucial to improving the data offloading efficiency. As such, we jointly optimize power allocation and task scheduling to achieve energy-efficient data offloading in EOSNs, aiming to balance the objectives of reducing the total energy consumption and increasing the sum weights of tasks. First, we derive the optimal power allocation solution to the joint optimization problem when the task scheduling policy is given. Second, leveraging the conflict graph model, we transform the original joint optimization problem into a maximum weight independent set problem when the power allocation strategy is given. Finally, we utilize the genetic framework to combine the above special solutions as a two-layer solution for the joint optimization problem. Simulation results demonstrate that our proposed solution can properly balance the sum weights of tasks and the total energy consumption, achieving superior system performance over the current best alternatives.
    Keywords Mathematics - Optimization and Control ; Electrical Engineering and Systems Science - Signal Processing
    Subject code 006 ; 510
    Publishing date 2024-01-12
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Development of Gemcitabine-Modified miRNA Mimics as Cancer Therapeutics for Pancreatic Ductal Adenocarcinoma.

    Yuen, John G / Hwang, Ga-Ram / Fesler, Andrew / Intriago, Erick / Pal, Amartya / Ojha, Anushka / Ju, Jingfang

    bioRxiv : the preprint server for biology

    2023  

    Abstract: ... a treatment strategy by modifying tumor suppressor miRNAs, : One sentence summary: Yuen and Hwang ...

    Abstract Pancreatic cancer, including its most common subtype, pancreatic adenocarcinoma (PDAC), has the lowest five-year survival rate among patients with pancreatic cancer in the United States. Despite advancements in anticancer treatment, the overall median survival for patients with PDAC has not dramatically improved. Therefore, there is an urgent need to develop new strategies of treatment to address this issue. Non-coding RNAs, including microRNAs (miRNAs), have been found to have major roles in carcinogenesis and the subsequent treatment of various cancer types like PDAC. In this study, we developed a treatment strategy by modifying tumor suppressor miRNAs,
    One sentence summary: Yuen and Hwang
    Language English
    Publishing date 2023-08-15
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.08.14.553255
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Impact of Patient Frailty on Speech Recognition and Quality of Life Outcomes in Adult Cochlear Implant Users.

    Yuen, Erick / Nguyen, Shaun A / Babb, Emily / Wilkinson, Rachel / Meyer, Ted A / McRackan, Theodore R

    Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology

    2023  Volume 44, Issue 7, Page(s) 684–687

    Abstract: Objective: The process of cochlear implantation (CI) and subsequent post-cochlear implant care is extensive and can be difficult to navigate for patients considered medically frail. This study investigates potential impact of patient frailty on speech ... ...

    Abstract Objective: The process of cochlear implantation (CI) and subsequent post-cochlear implant care is extensive and can be difficult to navigate for patients considered medically frail. This study investigates potential impact of patient frailty on speech recognition and quality of life outcomes after CI.
    Study design: Retrospective review of a prospectively maintained database.
    Setting: Tertiary cochlear implant center.
    Patients: Three hundred seventy adults undergoing CI for traditional bilateral hearing loss indication.
    Interventions: None.
    Main outcome measures: Comparison of pre-CI to 12-month post-CI change in consonant-nucleus-consonant phoneme/words, AzBio sentences in quiet/+10SNR, and Cochlear Implant Quality of Life (CIQOL)-35 Profile domain and global scores based on degree of patient frailty as assessed using the five-factor modified frailty index and Charlson Comorbidity Index.
    Results: The average age at implantation was 65.4 years (±SD, 15.7; 19-94 years). Overall, there were minimal to absent and nonsignificant differences in speech recognition outcomes (consonant-nucleus-consonant phoneme/words, and AzBio sentences +10SNR) based on pre-CI patient frailty. The exception was less improvement in AzBio quiet sentence score in patients noted to be severely frail based on Charlson Comorbidity Index (57.1% vs. 35.2%, d = 0.7 [0.3, 1]). Similar findings were observed for CIQOL-35 Profile domain and global scores where no associations were found other than decreased improvement in the social domain in patients noted to be severely frail (21.7 vs. -0.3, d = 1 [0.4, 1.7]).
    Conclusions: Although some differences in outcomes were noted based on cochlear implant user frailty, these were small and isolated to only a few outcome measures. Therefore, assuming the patient is medically safe for surgery, preoperative frailty should not dissuade clinicians from recommending CI.
    MeSH term(s) Adult ; Humans ; Aged ; Cochlear Implants ; Cochlear Implantation ; Quality of Life ; Speech Perception ; Frailty/complications ; Treatment Outcome
    Language English
    Publishing date 2023-06-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2036790-9
    ISSN 1537-4505 ; 1531-7129
    ISSN (online) 1537-4505
    ISSN 1531-7129
    DOI 10.1097/MAO.0000000000003933
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Laryngeal Electromyographic Findings in a Cohort of Recalcitrant Chronic Neurogenic Cough Patients.

    Zalvan, Craig H / Yuen, Erick / Thomas, Anila M / Benson, Brian E

    Journal of voice : official journal of the Voice Foundation

    2020  Volume 35, Issue 6, Page(s) 901–905

    Abstract: Objectives: To evaluate the laryngeal electromyography findings of bilateral thyroarytenoid muscles in 10 patients with chronic, intractable coughing.: Methods: This is a retrospective cohort case series. Clinical records were reviewed for ... ...

    Abstract Objectives: To evaluate the laryngeal electromyography findings of bilateral thyroarytenoid muscles in 10 patients with chronic, intractable coughing.
    Methods: This is a retrospective cohort case series. Clinical records were reviewed for demographic information, symptoms, and findings on bilateral laryngeal EMG for 10 patients referred for chronic coughing.
    Results: All thyroarytenoid muscles tested demonstrated electromyographic evidence of neuropathy, with signs of denervation and reinnervation. There was reduced recruitment in all 20 thyroarytenoid muscles studied. In addition, polyphasic motor units were seen in all thyroarytenoid muscles, with increased amplitude in 18 of 20 thyroarytenoid muscles and increased duration in 17 of 20 thyroarytenoid muscles. Additionally, there was electromyographic evidence of synkinesis in 19 of 20 thyroarytenoid muscles studied, a sign of aberrant reinnervation.
    Conclusion: Patients with intractable coughing, despite numerous modalities of treatment, potentially have bilateral neuropathy of the recurrent laryngeal nerves suggesting the potential peripheral as well as central neuropathic changes as the etiology.
    MeSH term(s) Cough/diagnosis ; Cough/etiology ; Electromyography ; Humans ; Laryngeal Muscles ; Recurrent Laryngeal Nerve ; Retrospective Studies
    Language English
    Publishing date 2020-03-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 17459-2
    ISSN 1873-4588 ; 1557-8658 ; 0892-1997
    ISSN (online) 1873-4588 ; 1557-8658
    ISSN 0892-1997
    DOI 10.1016/j.jvoice.2020.01.024
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Transoral Penetrating Trauma to the Skull Base.

    Klimczak, Jaclyn / Kelley, Ashley / Guthrie, Ashley / Yuen, Erick / Lando, Tali

    Ear, nose, & throat journal

    2019  Volume 99, Issue 2, Page(s) 114–116

    MeSH term(s) Cerebrovascular Trauma/complications ; Cerebrovascular Trauma/diagnostic imaging ; Female ; Foreign Bodies/complications ; Foreign Bodies/diagnostic imaging ; Humans ; Infant ; Medical Illustration ; Skull Base/injuries ; Wounds, Nonpenetrating/complications ; Wounds, Nonpenetrating/diagnostic imaging
    Language English
    Publishing date 2019-04-04
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 750153-5
    ISSN 1942-7522 ; 0145-5613
    ISSN (online) 1942-7522
    ISSN 0145-5613
    DOI 10.1177/0145561319834909
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Hearing loss in patients with systemic lupus erythematosus: A systematic review and meta-analysis.

    Yuen, Erick / Fried, Jacob / Nguyen, Shaun A / Rizk, Habib G / Ward, Celine / Meyer, Ted A

    Lupus

    2021  Volume 30, Issue 6, Page(s) 937–945

    Abstract: Objective: To determine the prevalence of hearing loss (HL) in patients with systemic lupus erythematosus (SLE), describe frequency-specific hearing threshold changes in this patient population as compared to age-matched control, and compare the ... ...

    Abstract Objective: To determine the prevalence of hearing loss (HL) in patients with systemic lupus erythematosus (SLE), describe frequency-specific hearing threshold changes in this patient population as compared to age-matched control, and compare the clinical and serological profiles of patients with SLE with and without HL.
    Methods: A systematic review querying four databases (PubMed, Web of Science, Scopus, and Cochrane) was performed. Meta-analysis of available data was performed to determine the overall prevalence and odds ratio (OR) of HL, and compare mean differences in frequency-specific hearing thresholds between patients with SLE and control. Additionally, meta-analysis of proportions allowed for comparison of disease features present in patients with SLE with and without sensorineural HL.
    Results: This review included 17 studies reporting on 1326 patients (635 with SLE and 691 control). The pooled prevalence of HL in patients with SLE was 27%. In comparison to control, patients with SLE had a significantly higher odds of HL (OR 14.6, 95% CI: 8.5 to 25.0). Mean air-conduction hearing thresholds in patients with SLE were significantly elevated relative to control at 125 and 250 Hz. Mean bone-conduction hearing thresholds were significantly elevated in patients with SLE across all measured frequencies except at 3000 and 6000 Hz compared to control. Disease features did not significantly differ between patients with SLE with and without HL.
    Conclusion: Compared to age-matched control, patients with SLE have increased odds of HL, which primarily manifests at low frequencies. Therefore, this patient population requires greater audiologic attention.
    MeSH term(s) Hearing Loss/epidemiology ; Hearing Loss/etiology ; Humans ; Lupus Erythematosus, Systemic/complications ; Lupus Erythematosus, Systemic/epidemiology ; Prevalence
    Language English
    Publishing date 2021-02-27
    Publishing country England
    Document type Journal Article ; Meta-Analysis ; Systematic Review
    ZDB-ID 1154407-7
    ISSN 1477-0962 ; 0961-2033
    ISSN (online) 1477-0962
    ISSN 0961-2033
    DOI 10.1177/0961203321997919
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: A Trigger Reduction Approach to Treatment of Paradoxical Vocal Fold Motion Disorder in the Pediatric Population.

    Zalvan, Craig / Yuen, Erick / Geliebter, Jan / Tiwari, Raj

    Journal of voice : official journal of the Voice Foundation

    2019  Volume 35, Issue 2, Page(s) 323.e9–323.e15

    Abstract: Objectives: Paradoxical vocal fold motion disorder (PVFMD), or induced laryngeal obstruction (ILO), is a clinical phenomenon characterized by inappropriate adduction of the true vocal folds during inspiration. The resultant episodes of acute respiratory ...

    Abstract Objectives: Paradoxical vocal fold motion disorder (PVFMD), or induced laryngeal obstruction (ILO), is a clinical phenomenon characterized by inappropriate adduction of the true vocal folds during inspiration. The resultant episodes of acute respiratory distress marked by exercise-induced cough, inspiratory stridor, throat tightness, and shortness of breath are often misattributed to asthma despite normal pulmonary function testing results. Although the pathogenesis of the disease remains unclear, the etiology is likely multifactorial with an inflammatory, neurological, and psychiatric basis. Our trigger reduction approach, consisting of a plant-based, Mediterranean-style diet to treat laryngopharyngeal reflux and sinus toilet, aims to dampen the peripheral neuronal hyperexcitability of the laryngopharyngeal tissues that is hypothesized to contribute to this disorder. The primary objective of the present study was to assess for therapeutic efficacy by analyzing pre- and post-treatment subjective scores using four validated indices: Voice Handicap Index (VHI), Reflux Symptom Index (RSI), Dyspnea Index (DI), and Cough Severity Index (CSI).
    Methods: A retrospective chart review of all patients age ≤18 years seen by the senior author between 2012 and 2018 who reported laryngeal spasm (J35.5) as a presenting complaint with no underlying organic diagnosis that otherwise explained the symptom identified the study cohort. Patients were excluded if another cause of their laryngeal spasm was identified or their medical records were incomplete.
    Results: Of 80 patients, 24 met the criteria. The most frequent presenting symptom was exercise-induced dyspnea (79%). Of the four measured indices, only a change in DI (P = 0.024) met statistical significance. Of 24 patients, 18 (75%) demonstrated a reduction in DI following our treatment protocol. Using reduction in DI as a continuous variable to assess response, the patient cohort experienced a 4.62 (95% confidence interval [CI]: 0.65-8.6) mean point reduction. Using the eight-point reduction (improvement) in DI as an accepted clinical response to treatment, 8 of 24 patients (33%) experienced a clinically relevant response. Changes in CSI (P = 0.059), RSI (P = 0.27), and VHI (P = 0.25) did not meet statistical significance. Of 24 patients, 8 (33%), 11 (46%), and 7 (29%) demonstrated a reduction in CSI, RSI, and VHI following our trigger reduction protocol, respectively. The patient cohort experienced a mean point reduction of 1.8 (95% CI: -0.1 to 3.7), 1.3 (95% CI: -1.1 to 3.7), and 1.3 (95% CI: -1.0 to 3.6) in CSI, RSI, and VHI, respectively.
    Conclusions: Paradoxical vocal fold motion disorder is a multifactorial disease that poses diagnostic and therapeutic challenges. Early diagnosis and treatment are critical to ensure patient safety, satisfaction, and reduction in health care costs, as mistreatment with asthma pharmacotherapy, intubation, or tracheostomy may exacerbate their dyspnea and lead to preventable hospitalizations. Our results demonstrate that a trigger reduction approach consisting of a plant-based, Mediterranean-style diet and sinus toilet alone may not achieve a clinically meaningful response in the majority of patients. However, given their favorable safety profile, our therapeutic regimen, along with respiratory retraining therapy, may provide symptom relief for selected patients who would otherwise continue to suffer.
    MeSH term(s) Adolescent ; Child ; Humans ; Laryngeal Diseases/diagnosis ; Laryngeal Diseases/therapy ; Laryngopharyngeal Reflux ; Laryngoscopy ; Retrospective Studies ; Vocal Cord Dysfunction/diagnosis ; Vocal Cord Dysfunction/etiology ; Vocal Cord Dysfunction/therapy ; Vocal Cords
    Language English
    Publishing date 2019-09-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 17459-2
    ISSN 1873-4588 ; 1557-8658 ; 0892-1997
    ISSN (online) 1873-4588 ; 1557-8658
    ISSN 0892-1997
    DOI 10.1016/j.jvoice.2019.08.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The Effect of CPAP on Middle Ear Pressure: A Systematic Review and Meta-analysis.

    Ma, Cheng / Yuen, Erick / Nguyen, Shaun A / Meyer, Ted A / Lambert, Paul R

    Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology

    2021  Volume 42, Issue 9, Page(s) 1300–1307

    Abstract: Objective: To assess the effect of short-term and long-term continuous positive airway pressure (CPAP) use on middle ear pressure (MEP) in adult ears.: Databases reviewed: PubMed, Scopus, and Embase were searched through October 2020. Search ... ...

    Abstract Objective: To assess the effect of short-term and long-term continuous positive airway pressure (CPAP) use on middle ear pressure (MEP) in adult ears.
    Databases reviewed: PubMed, Scopus, and Embase were searched through October 2020. Search strategies used a combination of subject headings (e.g., MeSH in PubMed) and keywords for CPAP and middle ear pressure.
    Methods: English-language articles studying changes in MEP as measured by tympanometry or tympanograms in patients using CPAP were selected for inclusion. Data extraction from included articles included demographics, baseline, and follow-up data.
    Results: A total of 7 articles representing 664 patients with weighted mean age of 42.5 years (range 34.9-57.8 yrs) were included. Meta-analysis of three qualifying studies demonstrated a positive correlation between higher CPAP pressures and degree of MEP rise during CPAP use compared to baseline with mean difference of 25.1 daPa (95% confidence interval [18.7, 31.4]) at 5 cm H2O and 81.9 daPa (95% confidence interval [60.2, 103.5]) at 10 cm H2O. Short-term effects of CPAP use were reviewed in four studies that showed a transient rise in MEP. Three separate studies examining the long-term effects of CPAP use showed resting MEP was higher in patients with severe obstructive sleep apnea (OSA), which might be related to progressive eustachian tube dysfunction as a complication of severe OSA.
    Conclusion: Short-term CPAP use is associated with transient elevations of MEP in adult ears. Long-term CPAP use might produce beneficial MEP changes, especially in patients with OSA and eustachian tube dysfunction.
    MeSH term(s) Acoustic Impedance Tests ; Adult ; Continuous Positive Airway Pressure ; Ear, Middle ; Humans ; Middle Aged ; Pressure ; Sleep Apnea, Obstructive/therapy
    Language English
    Publishing date 2021-07-16
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Systematic Review
    ZDB-ID 2036790-9
    ISSN 1537-4505 ; 1531-7129
    ISSN (online) 1537-4505
    ISSN 1531-7129
    DOI 10.1097/MAO.0000000000003276
    Database MEDical Literature Analysis and Retrieval System OnLINE

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