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Declarations
PMC10731819
Ethics approval and consent to participate
The study protocol was approved by the Service Provider for the Education Sector (SIKT, reference 305866). Study permission was obtained from the head of the nursing study program at the Department of Health and Nursing Sciences at the University of Agder, the Faculty Ethics Committee at the University of Agder, the he...
PMC10731819
Consent for publication
Not applicable.
PMC10731819
Competing interests
The authors declare no competing interests.
PMC10731819
References
PMC10731819
Subject terms
Parkinson’s disease, PD
NEURODEGENERATIVE DISORDERS
Nicotinamide adenine dinucleotide (NAD) replenishment therapy using nicotinamide riboside (NR) shows promise for Parkinson’s disease (PD) and other neurodegenerative disorders. However, the optimal dose of NR remains unknown, and doses exceeding 2000 mg daily have not been tested in humans. To evaluate the safety of hi...
PMC10684646
Introduction
Parkinson’s disease, PD, neurological disorders
ADVERSE EVENTS, ADVERSE EFFECTS, MOVEMENT DISORDER, DISEASES, NEUROLOGICAL DISORDERS
Parkinson’s disease (PD) affects 1–2% of the population over 65 years, and is one of the fastest growing neurological disorders worldwideIncreasing cellular levels of nicotinamide adenine dinucleotide (NAD) has been proposed as a potential neuroprotective therapeutic strategy for neurodegenerationNAD levels decline wit...
PMC10684646
Results
PMC10684646
Study population
PD
In total, 26 individuals with PD were screened, and 20 eligible participants were enrolled, all of whom completed the study (Fig. 
PMC10684646
High dose NR treatment augments the NAD metabolome
Next, we explored the effect of 3000 mg NR daily on the NAD metabolome in blood and urine. First, flash frozen whole blood samples were analyzed for NAD
PMC10684646
High dose NR treatment is not associated with depletion of the methyl group pool
One re-occurring concern in the literature is that NAD precursor supplementation may lead to methyl group depletion due to an increased elimination of Nam by methylation
PMC10684646
Discussion
toxicity, PD, neurological and non-neurological diseases
ADVERSE EVENTS
Our study met its primary outcome and established that orally administered NR at a dose of 3000 mg daily is well tolerated in PD over a course of 4 weeks. NR-recipients developed no moderate or severe adverse events. Furthermore, there were no mild adverse events likely attributed to NR, and no other clinical or bioche...
PMC10684646
Overview of NAD metabolism in interaction with methyl-group metabolism.
PD, SAH, SAH S-adenosyl homocysteine
The figure shows various routes of NAD biosynthesis, and examples of NAD degradation leading to Nam production. If not recycled, Nam is methylated to Me-Nam, in a reaction catalyzed by NNMT and requiring SAM as methyl-group donor. The other product of this reaction, SAH, is further converted to HCy, and subsequently re...
PMC10684646
Methods
PMC10684646
Participants and study design
idiopathic PD
This study design was a phase I, single-center, randomized, double-blinded, placebo-controlled trial, aiming to provide initial evidence of safety and tolerability for NR at a dose of 3000 mg daily. The trial was conducted at the Department of Neurology, Haukeland University Hospital, Norway, from the 29.04.22 to the 0...
PMC10684646
Randomization and masking
20 participants (5 female and 15 male) were randomly allocated to receive either 1500 mg NR twice daily or placebo for 4 weeks (number of blocks: 2, block size 4, allocation: 1:1), using the electronic Case Report Form (
PMC10684646
Primary outcome
ADVERSE EVENTS
The primary outcome was the safety of 3000 mg NR daily for 4 weeks, defined as the absence of clinically significant, NR-associated moderate or severe adverse events.
PMC10684646
Secondary outcomes
PD
ADVERSE EVENTS, SECONDARY
The secondary outcomes were the incidence of treatment-associated mild adverse events, treatment-associated changes in the NAD metabolome in blood and urine, and the change in the overall clinical severity of PD, measured by total MDS-UPDRS.
PMC10684646
Procedures
Parkinson’s disease, movement disorder
ADVERSE EVENT, ADVERSE EVENTS, ADVERSE EVENT, MOVEMENT DISORDER, MOVEMENT DISORDER
At screening for trial entry, candidates underwent physical and neurological examination. Enrolled participants were assessed by physical visits by a movement disorder specialist at baseline (visit 1, V1), day 7 (V4), day 14 (V5), day 21 (V6) and day 28 (V7). At baseline and day 28 participants underwent additional ass...
PMC10684646
Clinical laboratory values
Analysis of clinical laboratory values from blood samples was performed by the Department of Medical Biochemistry and Pharmacology (MBF) at Haukeland University Hospital, Bergen, Norway.
PMC10684646
NAD and glutathione metabolite analysis from frozen blood
Analysis was carried out by NADMed (Helsinki, Finland;
PMC10684646
LC-MS analysis from whole blood and urine
Sample analysis was carried out by MS-Omics (Vedbæk, Denmark).Blood sample extraction was carried out by combining 100 µl whole blood with 900 µl ice-cold extraction solvent (Methanol/Acetonitrile/MQW – 10:6:4 fortified with stable isotope internal standards (Supplementary Data Urine sample extraction was carried out b...
PMC10684646
Statistical analysis
Data normality was tested by the Shapiro–Wilk test. The majority of variables in the dataset were normally distributed (Supplementary Data 
PMC10684646
Reporting summary
Further information on research design is available in the 
PMC10684646
Supplementary information
Peer Review FileDescription of Additional Supplementary FilesSupplementary Data 1Supplementary Data 2Supplementary Data 3Supplementary Data 4Supplementary Data 5Supplementary Data 6Supplementary Data 7Reporting Summary
PMC10684646
Supplementary information
The online version contains supplementary material available at 10.1038/s41467-023-43514-6.
PMC10684646
Acknowledgements
We are deeply grateful to the patients involved in the study. We are grateful to study coordinator Ingunn Anundskås, and thank our technical laboratory staff, Martina Castelli, Sepideh Mostafavi, Yana Mikhaleva, Hanne Linda Nakkestad, and Gry Hilde Nilsen, for excellent technical assistance. We thank Prof Mathias Ziegl...
PMC10684646
Author contributions
H.B.: participated in the study conception and design, recruited and assessed study participants, collected, analyzed and interpreted data, and drafted the manuscript. S.K., G.O.S., K.H., E.S., M.S., S.A.G.: recruited and assessed study participants, and collected and interpreted data. C.D.: participated in study conce...
PMC10684646
Peer review
PMC10684646
Funding
Open access funding provided by University of Bergen.
PMC10684646
Data availability
NADMed
The vital signs, MDS-UPDRS and NADMed analysis data required to reproduce the results presented in this manuscript have been deposited in the Neuromics Group repository
PMC10684646
Code availability
The code required to reproduce the results presented in this manuscript have been deposited in the Neuromics Group repository
PMC10684646
Competing interests
Parkinson’s disease
International patent applications relating to the use of nicotinamide riboside as a treatment for Parkinson’s disease have been filed by the Technology Transfer Office “Vestlandets Innovasjonsselskap As (VIS)” on behalf of Haukeland University Hospital, Bergen, Norway, with publication authors C.T. and C.D. as inventor...
PMC10684646
References
PMC10684646
1. Introduction
Diabetes, vascular complications, diabetes
VASCULAR COMPLICATIONS, METABOLIC DISORDER, DISORDERS, DIABETES, OXIDATIVE STRESS, PATHOGENESIS, DIABETES
Reactive α-dicarbonyls (α-DCs), such as methylglyoxal (MGO), glyoxal (GO), and 3-deoxyglucosone (3-DG), are potent precursors in the formation of advanced glycation end products (AGEs). In particular, MGO and MGO-derived AGEs are thought to be involved in the development of vascular complications in diabetes. Experimen...
PMC10488144
3. Materials and Methods
PMC10488144
3.1. Study Population and Design
The study was conducted from June 2018 to January 2019 and was approved by the local Medical Ethics Committee of the Maastricht University Medical Centre + and performed in accordance with the Declaration of Helsinki of 1975, as amended in 2013, and with the Dutch Regulations on Medical Research involving Human Subject...
PMC10488144
3.2. Treatment and Placebo
The treatment was 500 mg
PMC10488144
3.3. Measurement of α-Dicarbonyls in Plasma
Fasting blood samples were collected into Heparin S-Monovette tubes (Sarstedt, Nümbrecht, Germany). Before analysis, all plasma samples stored at −80 °C were thawed and mixed thoroughly. The concentration of α-dicarbonyls in plasma samples was measured with ultra-performance liquid chromatography tandem mass spectromet...
PMC10488144
3.4. Instrumentation
A Waters Acquity I-class system combined with a Xevo TQ-XS mass spectrometer (Waters, Milford, MA, USA) equipped with a reversed-phase C18 column (Acquity UPLC HSS T3, 50 × 2.1 mm, 1.8 μm) was employed for the determination of α-dicarbonyl concentrations.
PMC10488144
3.5. Statistical Analysis
Statistical analyses were carried out according to a method previously described by Dower et al. [
PMC10488144
Author Contributions
Conceptualization, C.G.S.; data curation, J.L.J.M.S. and K.B.; formal analysis, J.L.J.M.S. and K.B.; methodology, C.G.S. and S.A.; supervision, C.G.S., J.L.J.M.S. and I.F.; visualization, K.B., J.L.J.M.S. and I.F.; writing—original draft, K.B.; writing—review and editing, J.L.J.M.S., C.G.S., P.V., S.A. and I.F. All aut...
PMC10488144
Institutional Review Board Statement
The study was conducted in accordance with the Declaration of Helsinki and approved by the Ethics Committee of the Maastricht University Medical Centre+ (protocol code NCT03781999 approved by EC on 14 February 2018).
PMC10488144
Informed Consent Statement
Informed consent was obtained from all subjects involved in the study.
PMC10488144
Data Availability Statement
The data presented in this study are available on request from the corresponding author.
PMC10488144
Conflicts of Interest
S.A. receives a salary from BioActor BV. The other authors declare no conflict of interest.
PMC10488144
Abbreviations
PMC10488144
1. Introduction
brachial plexus block, nausea and vomiting, postoperative pain
ADVERSE EFFECTS, MINOR, POSTOPERATIVE COMPLICATIONS
To explore the early clinical value of enhanced recovery after surgery (ERAS) with interscalene brachial plexus block (ISB) for arthroscopic rotator cuff repair (ARCR). We enrolled 240 patients who underwent arthroscopic rotator cuff repair, randomly divided into 3 groups (n = 80 each). Groups A, B, and C underwent onl...
PMC10637507
2. Materials and methods
PMC10637507
2.1. Patient selection and general information
epilepsy, shoulder fracture, peripheral neurological diseases
GROUP B, EPILEPSY
This study enrolled patients with rotor cuff repair, treated in our joint and sports medicine department between April 2022 and April 2023. The study was conducted in accordance with the Declaration of Helsinki and approved by the Institutional Review Board of Li Huili Hospital affiliated with Ningbo University (KY2023...
PMC10637507
2.2. Treatment modalities
PMC10637507
2.2.1. Surgery.
All ARCR surgeries were performed by a senior chief physician. After achieving anesthesia, thorough disinfection, and draping, the affected limb was abducted and flexed in the anterior direction in preparation for suspension traction using the standard posterior approach for routine repair.
PMC10637507
2.2.2. Routine perioperative management.
pain
Before the operation, patients were routinely instructed not to take pain medications, to fast for 8 hours, and to not drink water for 6 hours prior to surgery in order to ensure accuracy of the experimental study. The lavage fluid was maintained at room temperature, and the volume was not controlled. Interventions wer...
PMC10637507
2.2.3. ERAS perioperative management.
diabetes, blood glucose, insomnia, anxiety, pain
HYPERTENSION, CAVITY, COLD, POSTOPERATIVE COMPLICATIONS
Prior to the operation, the attending physician, anesthesiologist, rehabilitation physician, and the nurse-in-charge communicated with each patient in detail. This team comprehensively assessed physiological, psychological, mental, and nutritional status, and informed the patient about measures specific to ERAS, postop...
PMC10637507
2.2.4. Interscalene brachial plexus block.
ISB was performed under ultrasound guidance. After the puncture needle reached the target location under ultrasound guidance, 0.5 µg/kg dexmedetomidine compounded with 0.5% ropivacaine 15 to 20 mL was injected. The efficacy of the block was tested, and general anesthesia was induced after successful completion of the b...
PMC10637507
2.3. Outcome indicators
postoperative joint stiffness, pain
SECONDARY, HAND SWELLING
The primary outcome was pain intensity, measured using the VAS score, measured at 0–6, 6–24, and 24–48 hours postoperatively. LOS, 1- and 3-month Constant-Murley shoulder scores (CMS), University of California-Los Angeles (UCLA) shoulder scores, and incidence of postoperative joint stiffness and swelling in the 3 group...
PMC10637507
2.4. Statistical analysis
Data were analyzed using SPSS v. 25.0 (IBM, Armonk, NY). Continuous variables were expressed as the mean ± standard deviation and categorical variables were expressed as number of cases. After determining whether the data conformed to a normal distribution, normally distributed continuous variables were analyzed by one...
PMC10637507
3. Results
PMC10637507
3.1. Primary outcome
VAS scores were compared as the primary outcome. Results at 0–6 and 6–24 hours postoperatively exhibited differences between the 3 groups (Comparison of VAS scores among the 3 groups at different time points. VAS = Visual Analog Scale.
PMC10637507
3.2. Secondary outcomes
PMC10637507
3.2.1. Length of hospital stay.
A significant difference in the LOS was found among the 3 groups (Comparison of LOS among the 3 groups. LOS = length of hospital stay.
PMC10637507
3.2.2. CMS and UCLA scores.
The preoperative shoulder function scores did not significantly differ among the 3 groups. However, at 6 weeks and 3 months postoperatively, the scores of Groups B and C were better than those of Group A (Comparison of CMS among the 3 groups at different time points. CMS = Constant-Murley shoulder score.Comparison of U...
PMC10637507
3.2.3. Postoperative complications.
postoperative stiffness
POSTOPERATIVE COMPLICATIONS
The incidence of postoperative stiffness did not significantly differ among the 3 groups (Comparison of incidence of postoperative complications among the 3 groups.
PMC10637507
4. Discussion
Postoperative pain, shoulder stiffness, Shoulder swelling, pain
COMPLICATIONS
Shoulder surgery involves multiple muscles and ligaments. Patients undergoing ARCR experience more pain after surgery than those who undergo other shoulder arthroscopy procedures.The concept of perioperative ERAS was introduced by Danish surgeon Henrik Kehlet in 1990.Nerve block techniques modify the generation of resp...
PMC10637507
5. Conclusion
postoperative shoulder swelling, pain
We found that the combination of ERAS and ISB eliminates pain in the early postoperative period following ARCR, reduces LOS, and decreases the incidence of postoperative shoulder swelling. However, the effect on early postoperative functional recovery is similar.
PMC10637507
Acknowledgments
We would like to thank Editage (
PMC10637507
Abbreviations:
arthroscopic rotator cuff repairConstant-Murley shoulder scoreenhanced recovery after surgerygeneral anesthesiainterscalene brachial plexus blocklength of hospital stayUniversity of California-Los Angeles scoresVisual Analog ScaleThe study was conducted in accordance with the Declaration of Helsinki, and approved by th...
PMC10637507
References
PMC10637507
Abstract
PMC10626224
Background
As the outcome of immunotherapy can be improved when concurrently or sequentially combined with cytotoxic chemotherapy or radiotherapy, we investigated the efficacy of immunotherapy maintenance following platinum‐based chemotherapy in epidermal growth factor receptor (
PMC10626224
Methods
In this prospective, open‐label, single arm phase 2 trial, we enrolled patients aged 18 years or older with
PMC10626224
Results
tumor
MAY, DISEASE, TUMOR
We enrolled 26 patients between May 2020 and July 2021. The median PFS was 1.7 months (95% CI: 0.401–2.999 months). The median OS was 21.4 months (95% CI: 18.790–24.010 months) with 6‐ and 12‐month OS rates of 96.2% and 76.9%, respectively. The objective response rate was 7.7% (2/26) and disease control rate, 11.5% (3/...
PMC10626224
Conclusion
Nivolumab maintenance following platinum‐based chemotherapy did not show clinical benefits after EGFR‐TKI failure in patients with Immunotherapy in patients with
PMC10626224
INTRODUCTION
cancer death, Lung cancer
LUNG CANCER
Lung cancer is the leading cause of cancer death worldwide,Several studies have shown that the response rate can be improved when immunotherapy is administered concurrently or sequentially with cytotoxic chemotherapy or radiotherapy.Recently, we encountered some
PMC10626224
METHODS
PMC10626224
Study design and participants
This was a prospective, open‐label, single center, single‐arm, phase 2 trial performed at Asan Medical Center, Seoul, Republic of Korea. Eligible patients were aged at least 18 years with a pathologically proven diagnosis of The study was conducted in accordance with the principles of the Declaration of Helsinki and th...
PMC10626224
Procedures
EGFR‐TKI failure, tumor, Tumor, Cancer
DISEASE PROGRESSION, ADVERSE EVENT, TUMOR, TUMOR, BLOOD, CANCER
The patients received platinum‐based chemotherapy followed by nivolumab maintenance therapy after EGFR‐TKI failure (Figure Imaging assessments, including computed tomography or magnetic resonance imaging, of the brain were performed every 6 weeks (±7 days) for 6 months, and then every 12 weeks (±14 days) until disease ...
PMC10626224
Outcomes
death
TUMOR PROGRESSION
The primary endpoint was progression‐free survival (PFS), which was defined as the time from the day nivolumab was initiated until objective tumor progression or death. Secondary endpoints were the objective response rate (ORR) and overall survival (OS), which were also calculated from the initiation of nivolumab. The ...
PMC10626224
Statistical analysis
tumor
DISEASE, TUMOR
Continuous variables are described in mean (standard deviation) and median (IQR) values. Categorical variables are described as frequencies using counts and percentages. We used the Kaplan–Meier method to estimate PFS and OS and corresponding 95% CIs. For PFS, patients whose disease condition did not progress were cens...
PMC10626224
RESULTS
PMC10626224
Patient characteristics
death, tumor
ONCOLOGY, TUMOR, DISEASE CHARACTERISTIC
We enrolled 26 patients between January 2020 and December 2021, of whom one withdrew their consent during the study. The patient demographics and characteristics are shown in Table Baseline patient demographics and disease characteristics.Abbreviations: CCRT, concurrent chemoradiation therapy; ECOG PS, Eastern Cooperat...
PMC10626224
Efficacy
death, SD, tumor
LUNG CANCER, DISEASE, SOLID TUMORS, TUMOR
The median follow‐up duration was 1.9 months (range, 1.3–4.3 months). According to the investigator assessment, partial response (PR) was achieved in two patients (7.7%), and stable disease (SD) was exhibited in one (3.8%), with no complete response (Table Overall efficacy of nivolumab maintenance therapy following pla...
PMC10626224
Safety
ADVERSE EVENTS
AEs were reported by 13 (50.0%) patients. Treatment‐related AEs were mainly grade 1 or 2. Five (19.2%) patients had grade 3–4 AEs and two (7.7%), serious AEs (SAEs). The most common grade 3–4 AEs were laboratory abnormalities, especially increased alanine aminotransferase (7.7%) (Table Treatment‐related adverse events ...
PMC10626224
DISCUSSION
nonsquamous NSCLC
ADVERSE EVENTS
It is well‐known that immunotherapy in Despite the negative impact of However, this phase 2 study failed to show any improvement in outcomes compared with previous studies on second‐line cytotoxic chemotherapy following EGFR‐TKI. In an open‐label phase 3 study called CheckMate‐057, patients with nonsquamous NSCLC that ...
PMC10626224
AUTHOR CONTRIBUTIONS
Conceptualization: Chang‐Min Choi, Wonjun Ji, Jae Cheol Lee. Data curation: Jiwon Kim, Chang‐Min Choi, Wonjun Ji, Jae Cheol Lee. Formal analysis: Jiwon Kim, Wonjun Ji. Funding acquisition: Jae Cheol Lee. Investigation: Chang‐Min Choi, Wonjun Ji, Jae Cheol Lee. Methodology: Wonjun Ji, Jae Cheol Lee. Validation: Chang‐Mi...
PMC10626224
CONFLICT OF INTEREST STATEMENT
The authors have no conflicts of interest to declare. The funders had no role in the design of this study, data collection, data analyses, data interpretation, writing of the manuscript, or the decision to publish the results.
PMC10626224
Supporting information
Click here for additional data file. Click here for additional data file. Click here for additional data file.
PMC10626224
ACKNOWLEDGMENTS
This research was supported by the Ono pharmaceutical company.
PMC10626224
REFERENCES
PMC10626224
1. Introduction
oral cancer, Cancer
CANCER, ORAL CANCER, ORAL SQUAMOUS CELL CARCINOMA
Background: Areca nut and betel quid (ANBQ) chewing is a widespread carcinogenic habit. The BENIT (ClinicalTrials—NCT02942745) is the first known randomized trial designed for ANBQ chewers. Methods: We compared the intensive behavioral treatment intervention condition (IC) with the control condition (CC) in the BENIT a...
PMC10454381
2. Materials and Methods
PMC10454381
2.1. Study Design
The study design of BENIT was described in detail previously [
PMC10454381
2.2. Target Population, Inclusion/Exclusion Criteria, and Recruitment
Cancer
EVENTS, RECRUITMENT, CANCER
BENIT was conducted exclusively with Class 2 chewers residing in Guam and Saipan. Thus, all participants added tobacco to their BQ. This inclusion criterion was due to: (1) previous research that revealed a preponderance of Class 2 chewers in these locations [Inclusion criteria were: (1) self-identified chewer of ANBQ ...
PMC10454381
2.3. Sample Size and Early Termination Plan
The target sample size for BENIT was 324, which was based on a difference of 13 percentage points between intervention and control for ANBQ chewing cessation prevalence at 22 days with α = 0.05 (2-sided) and β = 0.20. However, an early termination plan was developed to accommodate the possibility of stronger-than-expec...
PMC10454381
2.4. Randomization
BENIT participants were randomized to each treatment condition within each island [
PMC10454381
2.5. Control Condition Procedures
Participants in the control condition received a single booklet created specifically for BENIT and designed to encourage and facilitate ANBQ cessation. The booklet, entitled “Quitting Betel Nut”, included information about the health risks associated with ANBQ chewing as well as advice and strategies for quitting and m...
PMC10454381
2.6. Intervention Condition Procedures
SESSION
The BENIT intervention followed the general framework of intensive cognitive-behavioral therapy [The intervention was comprised of five in-person sessions over a 22-day period. The BENIT program’s structure was such that participants were expected to attempt to quit chewing ANBQ at Session 3 (Day 15). Thus, Sessions 1 ...
PMC10454381
2.7. Baseline Assessments
Baseline survey assessments included questions on demographics, current chewing behavior, chewing history, ANBQ dependence measured by the Betel Quid Dependence Scale (BQDS) [
PMC10454381
2.8. Follow-Up Assessments
Betel quid chewer”
SESSION
The first follow-up assessment was administered at the final intervention session (Session 5). This assessment was scheduled for approximately 22 days after the first intervention session. Participants in this assessment provided data regarding their experience with the BENIT program and their chewing and quitting beha...
PMC10454381
2.9. Statistical Analysis
REGRESSION
Participant characteristics were compared between randomization groups. A proportional hazards regression model of the time until cessation was fit using the randomization group as the independent variable, with and without adjustment for factors found to be out of balance between groups. The Wald test using a robust v...
PMC10454381