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Skin area visit 1
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PMC10734405
Skin area visit 2
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PMC10734405
DET Score
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PMC10734405
Case Report Form (annotated)
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PMC10734405
Baseplate Change scoring
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PMC10734405
Randomisation
SKIN
Click here for additional data file.The authors wish to extend a special thanks to the patients with PSCs and health care professionals who participated in the study and provided valuable insight into their experience of living with/managing patients with PSCs. Moreover, the authors would like to thank the members of t...
PMC10734405
Additional Information and Declarations
PMC10734405
Competing Interests
HANSEN
During the investigation, Nana O. Herschend, Zenia Størling and Helle Doré Hansen were employed by Coloplast A/S, and Amy Findley, Abi Williams and Kate Sully were employed by Adelphi Values.
PMC10734405
Human Ethics
The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):The study was approved by the local ethics committee in each country (UK: 20/LO/0220, Germany: 19-363 and 00012177, the Netherlands: NL71653.068.19, Italy: NP 3841, and Norway: 65025).
PMC10734405
Data Availability
The following information was supplied regarding data availability:The raw measurements and an annotated Case Report Form are available in the
PMC10734405
References
PMC10734405
Abstract
PMC9804082
Aim
schizophrenia
The aim of this study was to explore the effectiveness and safety of pentoxifylline as an adjuvant to risperidone in mitigating the negative symptoms in patients with chronic schizophrenia.
PMC9804082
Methods
schizophrenia
SYNDROME
In this randomized, placebo‐controlled study, eighty outpatients with chronic schizophrenia were given risperidone for 8 weeks along with either pentoxifylline or a placebo. The positive and negative syndrome scale (PANSS) was used to assess patients at the start of the trial, as well as at 2, 4, 6, and 8 weeks. Pre‐ a...
PMC9804082
Results
The pentoxifylline group revealed a significant effect for time‐treatment interaction on PANSS‐negative subscale scores (
PMC9804082
Conclusion
inflammation, schizophrenia, TNF‐α
INFLAMMATION, PATHOPHYSIOLOGY
Pentoxifylline adjunctive therapy with risperidone for 8 weeks was found to be promising in mitigating the negative symptoms in patients with chronic schizophrenia. Trial registration number: NCT04094207.Phosphodiesterases and inflammation play a role in the pathophysiology of schizophrenia negative symptoms. Treatment...
PMC9804082
INTRODUCTION
motivational deficits, Schizophrenia, neuropsychiatric diseases, claudication symptoms
DISORDER, DISEASE, PATHOGENESIS
Schizophrenia is a chronic psychiatric disorder that contributes significantly to the burden of mental disease worldwide.Several attempts have been made to define the distinctive mechanisms responsible for these negative symptoms to introduce new therapeutic agents that could target those mechanisms.Studies over the pa...
PMC9804082
METHODS
PMC9804082
Study design
This study was a prospective, parallel‐group, randomized, double‐blind, 8‐week trial. The Menoufia University Faculty of Medicine's ethical committee granted approval for this study (4/2021NEUR1), and it was carried out in accordance with the Declaration of Helsinki and its subsequent amendments. The study was register...
PMC9804082
Participants
mental disorders, depression, schizophrenia, intellectual disability
DISORDERS, SYNDROME
From September 2019 to January 2022, patients between the ages of 20 and 40 were recruited from the neuropsychiatric department of Menoufia University Hospital. Patients with a confirmed diagnosis of schizophrenia using a structured interview conducted in accordance the Diagnostic and Statistical Manual of Mental Disor...
PMC9804082
Sample size
With an effect size (Cohen's
PMC9804082
Randomization and blinding
Randomization was performed by impartial person using electronic random number generator. (Assignment ratio was 1:1, blocks of two). Blinding of the assignment was achieved by using serially numbered, solid, and stapled wrappers. Placebo tablets were manufactured in Zeta Pharma Company, and they were indistinguishable ...
PMC9804082
Intervention
Pentoxifylline 400 mg SR tablets twice day, or a placebo, were given to participants for 8 weeks. Pentoxifylline dose selection was based on our previous study
PMC9804082
Outcomes
schizophrenia
The PANSS validated 30‐item rating scale, which comprises positive (seven items), negative (seven items), psychopathological symptoms in general (16 items), and PANSS total scores, was used to assess the drug efficacy and severity of symptoms in patients with schizophrenia.
PMC9804082
Safety
ADVERSE EFFECTS
Patients were advised to notify the study team if they experienced any unusual symptoms during the trial. At each appointment, adverse effects (AEs) were meticulously recorded using a checklist. Physical examinations were also performed, and the participants' vital signs and body weight were listed during the screening...
PMC9804082
Measurements
Fasting morning blood samples
Fasting morning blood samples (10 a.m.) were collected at the same time for all patients in vacutainers. The samples were then centrifuged at 4500 
PMC9804082
Statistical analysis
®
Data analysis was done using IBM® SPSS® Statistics version 22 software (USA). Shapiro–Wilk and Kolmogorov–Smirnov tests were used to examine the normal distribution of continuous variables. Student's
PMC9804082
RESULTS
Depression, Extrapyramidal Symptoms
SYNDROME, POSITIVE
According to the inclusion and exclusion criteria, 116 patients were assessed for their eligibility. Eighty outpatients were randomized to receive either pentoxifylline or placebo (Flow chart of the study participantsParticipants' demographics and baseline characteristics Abbreviations: BMI, body mass index; CRP, C‐Rea...
PMC9804082
Outcomes
PMC9804082
SD
SYNDROME, SYNDROME, POSITIVE
No significant differences were found between the two groups' baseline PANSS‐negative subscale scores (The two therapies' effects on the Positive and Negative Syndrome Scale (PANSS). Data presented as means ± SD: (A) Negative, (B) Positive, (C) General psychopathology, and (D) Total scores. NS, non‐significantBaseline‐...
PMC9804082
When comparing the two groups, the baseline PANSS‐positive subscale scores were not substantially different (
PMC9804082
When the two groups' baseline PANSS general psychopathology subscale scores were compared, there was no significant difference (
PMC9804082
When the two groups' baseline PANSS total scores were compared, there was no significant difference (
PMC9804082
Hamilton depression rating scale
The baseline HDRS total score in the pentoxifylline group was 7.35 ± 0.95, whereas in the placebo group it was 7.55 ± 0.85, with no statistically significant difference between the two groups (
PMC9804082
Extrapyramidal symptoms rating scale
The baseline ESRS total score in pentoxifylline group was 1.78 ± 0.42 and 1.73 ± 0.45 in the placebo group, with no statistically significant difference between the two groups (
PMC9804082
Effect on
There was no statistically significant difference in baseline cAMP, TNF‐α, and IL‐6 serum levels between the pentoxifylline and placebo groups. (Changes in cAMP and inflammatory markers Baseline and 8‐week comparisons between groups.Within group comparison.Furthermore, cAMP serum level in the pentoxifylline group was s...
PMC9804082
Clinical side effects
diarrhea, heartburn, abdominal pain, extrapyramidal symptoms, dizziness, sexual dysfunction, insomnia, headache
The frequency of side effects was not substantially different between the two groups. In pentoxifylline group, five patients suffered from headache, three from dizziness, five from insomnia, six from abdominal pain, five from heartburn, seven from diarrhea, six from decrease appetite, two from increase appetite, and fi...
PMC9804082
DISCUSSION
deficit syndrome, schizophrenia, cognitive dysfunction
DISEASES, CORTEX
As far as we know, our study is the first randomized, double‐blind, placebo‐controlled trial that assessing the efficacy and safety of pentoxifylline as PDE inhibitor in alleviating the negative symptoms in chronic schizophrenia. Patients received pentoxifylline showed significant enhancement in PANSS negative, general...
PMC9804082
CONCLUSION
inflammation, schizophrenia
INFLAMMATION, PATHOPHYSIOLOGY
Pentoxifylline adjuvant to risperidone enhanced the negative symptoms in chronic schizophrenia patients without remarkable side effects. These effects could be attributed to inhibition of PDEs and inflammatory cytokines. Our findings could indirectly support the role of PDEs and inflammation in the schizophrenia‐negati...
PMC9804082
CONFLICT OF INTEREST
The authors state they have no competing or financial interests.
PMC9804082
ACKNOWLEDGMENTS
Zeta Pharma is acknowledged by the authors for producing the placebo.
PMC9804082
DATA AVAILABILITY STATEMENT
On reasonable request, the corresponding author will provide the data that underpin the study's conclusions.
PMC9804082
REFERENCES
PMC9804082
Aims/hypothesis
hyperglycaemia, glucometabolic
HYPERGLYCAEMIA, TYPE 2 DIABETES
Hyperbaric oxygen (HBO) therapy may improve hyperglycaemia in humans with type 2 diabetes, but underlying mechanisms are unclear. Our objective was to examine the glucometabolic effects of HBO on whole-body glucose disposal in humans with type 2 diabetes.
PMC9729133
Methods
Diabetes
TYPE 2 DIABETES, DIABETES
In a randomised placebo-controlled crossover trial located at the German Diabetes Center, 12 male individuals with type 2 diabetes (age 18–75 years, BMI <35 kg/m
PMC9729133
Results
INSULIN SENSITIVITY
HBO decreased fasting blood glucose by 19% and increased whole-body, hepatic and WAT insulin sensitivity about one-third (
PMC9729133
Conclusions/interpretation
TYPE 2 DIABETES, INSULIN SENSITIVITY
HBO-mediated improvement of insulin sensitivity likely results from decreased endoplasmic reticulum stress and increased mitochondrial capacity, possibly leading to low-dose reactive oxygen species-mediated mitohormesis in humans with type 2 diabetes.
PMC9729133
Funding
German Federal Ministry of Health, German Federal Ministry of Education and Research, North-Rhine Westfalia Ministry of Culture and Science, European-Regional-Development-Fund, German-Research-Foundation (DFG), Schmutzler Stiftung
PMC9729133
Graphical abstract
PMC9729133
Supplementary Information
The online version of this article (10.1007/s00125-022-05797-0) contains peer-reviewed but unedited supplementary material..
PMC9729133
Keywords
PMC9729133
Introduction
type 2 diabetes
OXIDATIVE STRESS, TYPE 2 DIABETES
Various studies have suggested a causal relationship between oxidative stress and insulin resistance [Hyperbaric oxygen (HBO) treatment provides for 100% oxygen (OThis study compared the acute effects of one single session of 100% OStudy design. Participants with type 2 diabetes (
PMC9729133
Methods
PMC9729133
Volunteers
TYPE 2 DIABETES
Fifteen male volunteers with type 2 diabetes were enrolled in this randomised, placebo-controlled, crossover clinical trial (
PMC9729133
Randomisation
Diabetes
DIABETES
The random allocation sequence (1:1) was generated by an experienced statistician at the German Diabetes Center (DDZ) (PB) using SAS software, version 9.3 (SAS Institute, Cary, NC, USA). Participants were randomly assigned to their treatment sequence by a person at the DDZ who was not involved in the conduct of the stu...
PMC9729133
Experimental protocol
The visits took place at an interval of 3 weeks. Each visit covered a period of 31 h, divided into four time periods (Fig.
PMC9729133
Indirect calorimetry
Indirect calorimetry was performed in the canopy mode with Vmax Encore 29n (CareFusion, Höchberg, Germany) during the last 30 min of the basal, pre-clamp and clamp periods [
PMC9729133
Skeletal muscle and WAT biopsy
Skeletal muscle and WAT biopsy samples were taken from the vastus lateralis muscle and subcutaneous adipose tissue of the lower abdomen, respectively, as described before [
PMC9729133
MRI and MRS
BEST
All MRI/MRS measurements were conducted on a 3.0-T MR scanner (Achieva X-series; Philips Healthcare, Best, the Netherlands). Intrahepatic lipid (IHL) and intramyocellular lipid (IMCL) contents were quantified by
PMC9729133
High-resolution respirometry
Ex vivo analysis of mitochondrial respiration was performed in permeabilised muscle fibres and WAT using high-resolution respirometry (Oxygraph-2k; Oroboros, Innsbruck, Austria), as previously described [
PMC9729133
Analyses of lipid peroxidation, antioxidative capacity and oxidative stress
In skeletal muscle
Concentrations of thiobarbituric acid reactive substances (TBARS) were assessed fluorometrically in serum and biopsy samples from subcutaneous fat and skeletal muscle according to the manufacturer’s instructions (BioTek, Bad Friedrichshall, Germany) [In skeletal muscle and WAT samples, total glutathione and oxidised gl...
PMC9729133
GC-MS
Determination of atom per cent enrichment of blood [
PMC9729133
Western blotting
Expression levels of proteins of interest were assessed by western blot analysis, as described before [
PMC9729133
Measurement of circulating metabolites and hormones
Plasma concentrations of insulin, glycerol, NEFA, alanine aminotransferase, aspartate aminotransferase, triacylglycerol and chylomicrons, as well as whole-blood measurements of glucose and HbA
PMC9729133
Calculations
During pre-clamp and clamp periods, whole-body glucose disposal rate (
PMC9729133
Statistics
The power calculation was based on a previous study on HBO-induced glucose lowering, using two simultaneous two-sided paired
PMC9729133
Results
PMC9729133
HBO raises tissue oxygen pressure
During HBO treatment, tissue oxygen pressure as measured by tcpO
PMC9729133
HBO rapidly improves hyperglycaemia
fasting blood glucose
TYPE 2 DIABETES
After HBO treatment, blood glucose decreased by 19% from baseline compared with CON (iAUC Time course of circulating metabolites and hormones in humans with type 2 diabetes before and after HBO or CON treatment. Concentrations (means ± SEM) of fasting blood glucose (
PMC9729133
HBO leads to improvement of hepatic, skeletal muscle and WAT insulin sensitivity
TYPE 2 DIABETES
During the pre-clamp period, REE (Whole-body and tissue-specific glucose and lipid metabolism after HBO or CON treatment in humans with type 2 diabetes. (
PMC9729133
HBO acutely stimulates energy metabolism but also increases oxidative stress and antioxidative defence
TYPE 2 DIABETES
Changes were analysed by comparing the difference (Δ) between pre-clamp and basal periods for each intervention. Non-invasive Variables of tissue-specific energy metabolism and antioxidative capacity after HBO or CON treatment in humans with type 2 diabetes. Difference (Δ) between pre-clamp and basal periods for hepati...
PMC9729133
HBO acutely improves myocellular insulin signalling while reducing endoplasmic reticulum stress
TYPE 2 DIABETES
First, changes were analysed by comparing the difference (Δ) between pre-clamp and basal periods. During the pre-clamp period, expression of biomarkers of endoplasmic reticulum (ER) stress was measured in skeletal muscle. Expression levels of eIF2α were comparable between the interventions (ΔeIF2α, Myocellular ER stres...
PMC9729133
HBO does not immediately affect biomarkers of systemic low-grade inflammation
Serum IL-6, IL-1ra, TNF-α, FGF-21, MPO, SOD3, and total and high-molecular-weight adiponectin were not different between interventions (iAUCs
PMC9729133
Discussion
generalised, skeletal muscle, inflammation, beta cell loss, diabetes endotypes, hyperglycaemia, normoglycaemia, mitochondrial damage
INFLAMMATION, DISEASE, IMPAIRED GLUCOSE TOLERANCE, INSULIN RESISTANCE, HYPERGLYCAEMIA, TYPE 2 DIABETES, PATHOGENESIS, INSULIN SENSITIVITY
This study demonstrates that a single HBO treatment with 100% OThe observation of a clinically meaningful reduction in fasting hyperglycaemia in humans with type 2 diabetes extends previous data [The novelty resides in the investigation of the initial tissue-specific cellular mechanisms underlying the beneficial metabo...
PMC9729133
Supplementary information
(PDF 531 kb)
PMC9729133
Acknowledgements
A. Shokouhmehr, Diabetes
DIABETES
We would like to thank F. Ziehve, M. Eßer, D. Höhn, D. F. Markgraf, U. Partke, A. Shokouhmehr, J. Leonhard and A. Sparla, all co-workers at the German Diabetes Center (DDZ), for their excellent support.
PMC9729133
Authors’ relationships and activities
MR
MR received personal fees from Allergan, Eli Lilly, Fishawack Group, Gilead Sciences, Novo Nordisk, Pfizer, Prosciento and Target RWE and investigator-initiated research support from Boehringer-Ingelheim, Nutricia/Danone and Sanofi-Aventis. CH received research support from Sanofi-Aventis and is a member of the Editori...
PMC9729133
Contribution statement
MR
MR initiated the study, led the clinical experiments, and wrote, reviewed and edited the manuscript. TS led the clinical experiments, obtained and analysed the data, and wrote, edited and reviewed the manuscript. SK, HK, GB, SD, RG, SGM, PB, LM, CH and MW made significant contributions to data collection or analysis an...
PMC9729133
Funding
Diabetes
DIABETES
Open Access funding enabled and organized by Projekt DEAL. This study was supported by grants to the German Diabetes Center, which is funded by the German Federal Ministry of Health and Ministry of Culture and Science of the State North Rhine-Westphalia, and to the German Center for Diabetes Research by the German Fede...
PMC9729133
Data availability
All data generated or analysed during this study are included in the published article (and its
PMC9729133
References
PMC9729133
Key Points
PMC10445201
Question
digestive tract cancer, cancer, death
CANCER
Can vitamin D supplementation reduce the risk of relapse or death in a subgroup of patients with digestive tract cancer who were p53 immunoreactive, defined by positivity for anti-p53 antibodies in serum and p53 protein in more than 99% of cancer cells?
PMC10445201
Findings
digestive tract cancer
In this post hoc analysis of a randomized clinical trial including 392 patients with digestive tract cancer, 5-year relapse-free survival was significantly higher in the vitamin D group (80.9%) than the placebo group (30.6%) among patients in the p53-immunoreactive subgroup but not in the non–p53-immunoreactive subgrou...
PMC10445201
Meaning
death
These findings suggest that vitamin D supplementation may reduce the risk of relapse or death in this subgroup of patients.
PMC10445201
Importance
cancer
CANCER
Recent meta-analyses of randomized clinical trials found that daily vitamin D3 supplementation had beneficial effects on cancer mortality, although the results are still controversial.
PMC10445201
Objective
digestive tract cancer, death
To examine whether vitamin D supplementation reduces the risk of relapse or death in a supgroup of patients with digestive tract cancer who were p53 immunoreactive.
PMC10445201
Design, Setting, and Participants
digestive tract cancers
This was a post hoc subgroup analysis of the AMATERASU randomized, double-blind, placebo-controlled clinical trial. This trial included patients at a single university hospital in Japan with digestive tract cancers between January 2010 and February 2018 followed up for a median (IQR) of 3.5 (2.5-5.3) years to compare t...
PMC10445201
Interventions
Vitamin D3 (2000 IU/d) supplementation or placebo.
PMC10445201
Main Outcomes and Measures
cancer, death
CANCER
The primary outcome was 5-year relapse or death. The subgroup of patients who were p53 immunoreactive was defined by positivity for anti-p53 antibodies in serum and nuclear accumulation of p53 oncosuppressor protein in more than 99% of cancer cells, which is considered a biomarker for
PMC10445201
Results
esophageal cancer, colorectal cancer, small bowel cancer, digestive tract cancer, gastric cancer
SMALL BOWEL CANCER, COLORECTAL CANCER, OESOPHAGEAL CANCER, GASTRIC CANCER
Among 392 patients with digestive tract cancer (mean [SD] age, 66 [10.7] years; 260 males [66.3%]), there were 37 patients with esophageal cancer (9.4%), 170 patients with gastric cancer (43.4%), 2 patients with small bowel cancer (0.5%), and 183 patients with colorectal cancer (46.7%). Serum anti-p53 antibody was dete...
PMC10445201
Conclusions and Relevance
digestive tract cancer, death
This study found that vitamin D supplementation reduced the risk of relapse or death in the subgroup of patients with digestive tract cancer who were p53 immunoreactive.
PMC10445201
Trial Registration
Identifier:
PMC10445201
Introduction
cancer deaths
Worldwide, an estimated 10.0 million cancer deaths occurred in 2020,Vitamin D was previously demonstrated to upregulate innate and adaptive immunity.
PMC10445201
Methods
The trial protocol (
PMC10445201
Trial Design
This was a post hoc analysis of parent trial participants from the AMATERASU RCT
PMC10445201
Participants
digestive tract cancers
Of 417 patients with digestive tract cancers who were randomly assigned to receive vitamin D supplements (251 patients [60.2%]) or placebo (166 patients [39.8%]) and who were followed up for a median (IQR; maximum) period of 3.5 (2.5-5.3; 7.6) years, 392 participants (94.0%) had available serum samples and were eligibl...
PMC10445201
Outcome
death
The outcome was prespecified as relapse or all-cause death. Elapsed time was defined as the time from starting the supplement to the date the outcome occurred or the patient was censored.
PMC10445201
Detection of p53 Protein in Pathological Specimens
cancer
CANCER, PATHOLOGY
Immunohistochemical staining data of p53 in cancer tissue in pathology specimens was obtained from our previous study.
PMC10445201
Serum Anti-p53 Antibody Level Measurement
Patient serum p53-Ab levels at approximately 2 weeks after operation and just before starting trial vitamin D supplementation (ie, at randomization), were measured by SRL, Inc (Shinjuku, Tokyo, Japan) using chemiluminescent enzyme immune assay (CLEIA). The lowest measurable serum p53-Ab level is 0.4 U/mL. The study pop...
PMC10445201