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Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT05861544
Other study ID # 44482-2/12/2020
Secondary ID
Status Enrolling by invitation
Phase N/A
First received
Last updated
Start date March 23, 2023
Est. completion date January 23, 2024

Study information

Verified date May 2023
Source Organization Against Drugs (?????)
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The NUTRIDOPE (NUTRItion-driven Detoxification of OPioid addicted patiEnts) study is a clinical trial that aims to investigate the role of pomegranate juice consumption by opioid-addicted patients under buprenorphine and methadone on craving, which is the primary outcome, and other parameters. In detail, fresh pomegranate juice will be administered for 120 days (250 ml, 7 days/week) to the patients and craving as well as other psychosocial (e.g., depression, mood state, quality of life) and biochemical (i.e., blood redox status and inflammation) parameters will be evaluated. It is hypothesized that pomegranate juice will reduce craving probably through the improvement of blood redox and inflammation status. Pomegranate juice, which is the examined nutritional intervention, will be administered to the participants of the experimental group, whereas their counterparts in the control group will not consume any similar beverage as a placebo due to the objective difficulties of making one that will be identical and not separable with the fresh pomegranate juice.


Description:

Background: Buprenorphine and methadone are considered the "gold standard" medication for addiction treatment (MAT) for patients with opioid use disorders (OUDs). However, they may cause side effects promoting craving (i.e., opioid use relapse). Therefore, the concurrent administration of natural products could be an adjunct intervention to back up opioid MAT. Pomegranate is a natural substance that contains antioxidant polyphenolic compounds, which have been associated with craving reduction. Moreover, pomegranate positively affects psychosocial parameters, such as depression and anxiety that are common feelings for patients with OUDs, probably due to its potent antioxidant and anti-inflammatory properties. Objectives: The NUTRIDOPE (NUTRItion-driven Detoxification of OPioid addicted patiEnts) study aims to investigate the role of pomegranate juice consumption by patients with OUDs under buprenorphine and methadone on craving. Methods: Fresh pomegranate juice will be administered for 120 days (250 ml, 7 days/week) and craving, as the primary outcome, as well as other psychosocial (e.g., depression, mood state, quality of life) and biochemical (i.e., blood redox status and inflammation) parameters will be evaluated. Anticipated Results: It is hypothesized that pomegranate juice will reduce craving probably through the improvement of blood redox and inflammation status. Conclusions: NUTRIDOPE is a hypothesis-driven, evidence-based, multifactorial project that proposes a nutrition-based solution towards craving reduction for patients with OUDs under MAT, potentially assisting towards their successful rehab and societal reintegration.


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 58
Est. completion date January 23, 2024
Est. primary completion date July 23, 2023
Accepts healthy volunteers No
Gender All
Age group 20 Years and older
Eligibility Inclusion Criteria: - Over 20 years of age - Long-term heroin or other opioid drug use - Suffering from physical and mental dependence due to chronic opioid use Exclusion Criteria: - Serious medical problems, such as infection by human immunodeficiency virus or hepatitis B virus - Current use of anti-inflammatory medication - Relapse to other addictive substances (i.e., opioids, methamphetamine, benzodiazepines, cannabis, tetrahydrocannabinol, amphetamine) - To rule out the use of such substances, all participants underwent weekly urine tests during the four-month period of the experiment

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Pomegranate juice
The pomegranate juice that will be used in the experiment is a 100% natural product without conservatives. It will kindly be donated from the company Rodi Hellas SA, Pella, Greece. The product is in line with the quality assurance certificates by the International Organization for Standardization (ISO 22000:2005), Global Gap, Grasp and Kosher.

Locations

Country Name City State
Greece Organization Against Drugs Athens Attiki

Sponsors (2)

Lead Sponsor Collaborator
Organization Against Drugs (?????) University of Thessaly

Country where clinical trial is conducted

Greece, 

References & Publications (31)

Abu-Taweel GM, Al-Mutary MG. Pomegranate juice moderates anxiety- and depression-like behaviors in AlCl3-treated male mice. J Trace Elem Med Biol. 2021 Dec;68:126842. doi: 10.1016/j.jtemb.2021.126842. Epub 2021 Aug 17. — View Citation

Adams LS, Seeram NP, Aggarwal BB, Takada Y, Sand D, Heber D. Pomegranate juice, total pomegranate ellagitannins, and punicalagin suppress inflammatory cell signaling in colon cancer cells. J Agric Food Chem. 2006 Feb 8;54(3):980-5. doi: 10.1021/jf052005r. — View Citation

Adel-Mehraban MS, Tansaz M, Mohammadi M, Yavari M. Effects of pomegranate supplement on menopausal symptoms and quality of life in menopausal women: A double-blind randomized placebo-controlled trial. Complement Ther Clin Pract. 2022 Feb;46:101544. doi: 10.1016/j.ctcp.2022.101544. Epub 2022 Feb 2. — View Citation

Ahmadi J, Jahromi MS, Ghahremani D, London ED. Single high-dose buprenorphine for opioid craving during withdrawal. Trials. 2018 Dec 10;19(1):675. doi: 10.1186/s13063-018-3055-z. — View Citation

Aliyu IM, Danladi S, Ibrahim UI, Al-kassim Hassan M, Rohin MAK and Mohamad N (2018) Therapeutic potential of pomegranate antioxidant compounds in ameliorating opiate addiction. The Pharma Innovation Journal 7(5): 668-672.

Brown R, Kraus C, Fleming M, Reddy S. Methadone: applied pharmacology and use as adjunctive treatment in chronic pain. Postgrad Med J. 2004 Nov;80(949):654-9. doi: 10.1136/pgmj.2004.022988. — View Citation

Browne CJ, Godino A, Salery M, Nestler EJ. Epigenetic Mechanisms of Opioid Addiction. Biol Psychiatry. 2020 Jan 1;87(1):22-33. doi: 10.1016/j.biopsych.2019.06.027. Epub 2019 Jul 8. — View Citation

Cambay Z, Baydas G, Tuzcu M, Bal R. Pomegranate (Punica granatum L.) flower improves learning and memory performances impaired by diabetes mellitus in rats. Acta Physiol Hung. 2011 Dec;98(4):409-20. doi: 10.1556/APhysiol.98.2011.4.4. — View Citation

Chen SL, Lee SY, Tao PL, Chang YH, Chen SH, Chu CH, Chen PS, Lee IH, Yeh TL, Yang YK, Hong JS, Lu RB. Dextromethorphan attenuated inflammation and combined opioid use in humans undergoing methadone maintenance treatment. J Neuroimmune Pharmacol. 2012 Dec;7(4):1025-33. doi: 10.1007/s11481-012-9400-1. Epub 2012 Sep 19. — View Citation

Dunn KE, Finan PH, Andrew Tompkins D, Strain EC. Frequency and correlates of sleep disturbance in methadone and buprenorphine-maintained patients. Addict Behav. 2018 Jan;76:8-14. doi: 10.1016/j.addbeh.2017.07.016. Epub 2017 Jul 14. — View Citation

Estrada-Camarena EM, Lopez-Rubalcava C, Ramirez-Rodriguez GB, Pulido D, Cervantes-Anaya N, Azpilcueta-Morales G, Granados-Juarez A, Vega-Rivera NM, Islas-Preciado D, Trevino S, de Gortari P, Gonzalez-Trujano ME, Garcia-Viguera C. Aqueous extract of pomegranate enriched in ellagitannins prevents anxiety-like behavior and metabolic changes induced by cafeteria diet in an animal model of menopause. Neurochem Int. 2020 Dec;141:104876. doi: 10.1016/j.neuint.2020.104876. Epub 2020 Oct 10. — View Citation

Fahmy HA, Farag MA. Ongoing and potential novel trends of pomegranate fruit peel; a comprehensive review of its health benefits and future perspectives as nutraceutical. J Food Biochem. 2022 Jan;46(1):e14024. doi: 10.1111/jfbc.14024. Epub 2021 Dec 19. — View Citation

Garratt M, Brooks RC. A genetic reduction in antioxidant function causes elevated aggression in mice. J Exp Biol. 2015 Jan 15;218(Pt 2):223-7. doi: 10.1242/jeb.112011. Epub 2014 Dec 18. — View Citation

Guerrero-Solano JA, Jaramillo-Morales OA, Velazquez-Gonzalez C, De la O-Arciniega M, Castaneda-Ovando A, Betanzos-Cabrera G, Bautista M. Pomegranate as a Potential Alternative of Pain Management: A Review. Plants (Basel). 2020 Mar 30;9(4):419. doi: 10.3390/plants9040419. — View Citation

Hajipour S, Sarkaki A, Mohammad S, Mansouri T, Pilevarian A, RafieiRad M. Motor and cognitive deficits due to permanent cerebral hypoperfusion/ischemia improve by pomegranate seed extract in rats. Pak J Biol Sci. 2014 Aug;17(8):991-8. doi: 10.3923/pjbs.2014.991.998. — View Citation

Leventelis C, Goutzourelas N, Kortsinidou A, Spanidis Y, Toulia G, Kampitsi A, Tsitsimpikou C, Stagos D, Veskoukis AS, Kouretas D. Buprenorphine and Methadone as Opioid Maintenance Treatments for Heroin-Addicted Patients Induce Oxidative Stress in Blood. Oxid Med Cell Longev. 2019 Apr 9;2019:9417048. doi: 10.1155/2019/9417048. eCollection 2019. — View Citation

Lu RB, Wang TY, Lee SY, Chen SL, Chang YH, See Chen P, Lin SH, Chu CH, Huang SY, Tzeng NS, Lee IH, Chin Chen K, Kuang Yang Y, Chen P, Chen SH, Hong JS. Correlation between interleukin-6 levels and methadone maintenance therapy outcomes. Drug Alcohol Depend. 2019 Nov 1;204:107516. doi: 10.1016/j.drugalcdep.2019.06.018. Epub 2019 Aug 30. — View Citation

Luvian-Morales J, Varela-Castillo FO, Flores-Cisneros L, Cetina-Perez L, Castro-Eguiluz D. Functional foods modulating inflammation and metabolism in chronic diseases: a systematic review. Crit Rev Food Sci Nutr. 2022;62(16):4371-4392. doi: 10.1080/10408398.2021.1875189. Epub 2021 Jan 28. — View Citation

Mansouri MT, Naghizadeh B, Ghorbanzadeh B. Ellagic acid enhances morphine analgesia and attenuates the development of morphine tolerance and dependence in mice. Eur J Pharmacol. 2014 Oct 15;741:272-80. doi: 10.1016/j.ejphar.2014.08.024. Epub 2014 Aug 30. — View Citation

Mohd Adnan LH, Mohamad N, Che Mat K, Abu Bakar NH, Hashim SN and Mohd Shariff MH (2018) Attenuation of morphine-induced cAMP overshoot by thymoquinone in opioid receptor expressing cells (U87 MG) mediated by chronic morphine treatment. Journal of Engineering and Applied Sciences.13: 8906-8911.

Morvaridzadeh M, Sepidarkish M, Daneshzad E, Akbari A, Mobini GR, Heshmati J. The effect of pomegranate on oxidative stress parameters: A systematic review and meta-analysis. Complement Ther Med. 2020 Jan;48:102252. doi: 10.1016/j.ctim.2019.102252. Epub 2019 Nov 22. — View Citation

Paur R, Wallner C, Hermann P, Stollberger C, Finsterer J. Neurological abnormalities in opiate addicts with and without substitution therapy. Am J Drug Alcohol Abuse. 2012 May;38(3):239-45. doi: 10.3109/00952990.2011.644001. Epub 2012 Jan 20. — View Citation

Perrotti LI, Weaver RR, Robison B, Renthal W, Maze I, Yazdani S, Elmore RG, Knapp DJ, Selley DE, Martin BR, Sim-Selley L, Bachtell RK, Self DW, Nestler EJ. Distinct patterns of DeltaFosB induction in brain by drugs of abuse. Synapse. 2008 May;62(5):358-69. doi: 10.1002/syn.20500. — View Citation

Pujol CN, Paasche C, Laprevote V, Trojak B, Vidailhet P, Bacon E, Lalanne L. Cognitive effects of labeled addictolytic medications. Prog Neuropsychopharmacol Biol Psychiatry. 2018 Feb 2;81:306-332. doi: 10.1016/j.pnpbp.2017.09.008. Epub 2017 Sep 14. — View Citation

Ridzwan N, Jumli MN, Baig AA, Rohin MAK. Pomegranate-derived anthocyanin regulates MORs-cAMP/CREB-BDNF pathways in opioid-dependent models and improves cognitive impairments. J Ayurveda Integr Med. 2020 Oct-Dec;11(4):478-488. doi: 10.1016/j.jaim.2019.12.001. Epub 2020 May 16. — View Citation

Salarian A, Kadkhodaee M, Zahmatkesh M, Seifi B, Bakhshi E, Akhondzadeh S, Adeli S, Askari H, Arbabi M. Opioid Use Disorder Induces Oxidative Stress and Inflammation: The Attenuating Effect of Methadone Maintenance Treatment. Iran J Psychiatry. 2018 Jan;13(1):46-54. — View Citation

Sangi S, Ahmed SP, Channa MA, Ashfaq M, Mastoi SM. A new and novel treatment of opioid dependence: Nigella sativa 500 mg. J Ayub Med Coll Abbottabad. 2008 Apr-Jun;20(2):118-24. — View Citation

Sani IH, Sulaiman I, Zubairu I, Abdussalam US and Adzim MKR (2018) Antioxidant Potential of Phoenix dactylifera Linn Extract and its Effects on Calcium Channel Antagonist in the Treatment of Withdrawal Syndrome in Morphine Dependent Rats. Tropical Journal of Natural Product Research. 2(7): 309-313.

Sason A, Adelson M, Schreiber S, Peles E. The prevalence of constipation and its relation to sweet taste preference among patients receiving methadone maintenance treatment. Drug Alcohol Depend. 2021 Aug 1;225:108836. doi: 10.1016/j.drugalcdep.2021.108836. Epub 2021 Jun 24. — View Citation

Veskoukis AS, Kerasioti E, Priftis A, Kouka P, Spanidis Y, Makri S and Kouretas D (2019) A battery of translational biomarkers for the assessment of the in vitro and in vivo antioxidant action of plant polyphenolic compounds: the biomarker issue. Current Opinion in Toxicology 13: 99-109.

Wang P, Zhang Q, Hou H, Liu Z, Wang L, Rasekhmagham R, Kord-Varkaneh H, Santos HO, Yao G. The effects of pomegranate supplementation on biomarkers of inflammation and endothelial dysfunction: A meta-analysis and systematic review. Complement Ther Med. 2020 Mar;49:102358. doi: 10.1016/j.ctim.2020.102358. Epub 2020 Feb 26. — View Citation

* Note: There are 31 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Other Sleep evaluation Pittsburgh Sleep Quality Index (PSQI) self-reported questionnaire assesses through a Likert scale from 0-3 sleep quality and quantity, sleep habits related to quality and occurrence of sleep disturbances in adults consisting of seven components: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleep medication, and daytime dysfunction. A score is calculated by the sum of the 7 components ranging between 0 and 21. The quality of sleep will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Other Fatigue evaluation Fatigue Severity Scale (FSS) is a 9-item, self-administered questionnaire which assesses the magnitude of fatigue that the patients have experienced throughout the past weeks. Fatigue levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Other Mood Profile of Mood States (POMS-short version) questionnaire consists of 37 self-administered items and assesses current mood states in 6 dimensions, namely tension, depression, anger, vigour, fatigue, and confusion. Mood levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Other Evaluation of constipation Patient Assessment of Constipation - Quality of Life (PAC-QOL) questionnaire consists of 28 self-reported items that assess the effects of constipation on the patient QOL during the last two weeks. It comprises four dimensions referring to physical discomfort, psychosocial discomfort, treatment satisfaction and worries discomfort. The responses are scored on a Likert scale ranging from 0 to 5. Higher score indicates increase of severity of the negative effects of the intervention in question on QOL. Constipation levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Other Faecal evaluation Bristol Stool Form Scale (BSFS) will be used as a pictorial representation of each stool type ranging from the hardest (i.e., type 1) to the softest (i.e., type 7) related to specific bowel symptoms, such as constipation. Faecal evaluation will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Primary Craving Heroin Craving Questionnaire (HCQ), which is a validated instrument, will be used for the assessment of the effects of pomegranate juice on craving. It is consisted of 45 questions divided in 5 dimensions, namely desire to use heroin, intentions and planning to use heroin, anticipation of positive outcome, relief from withdrawal or dysphoria, and lack of control overuse. HCQ will be completed by the volunteers of both the experimental and control groups at four timepoints in order to assess the change on craving as follows: Before the start of the experiment (i.e., day 1 or baseline), in the middle of the experiment (i.e., day 60), at the end of the experiment (i.e., day 120), and 6 months after the end of the experiment (i.e., follow-up measurement). Changes between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement) will be assessed.
Secondary Quality of Life (QoL) The Nottingham Health Profile (NHP) questionnaire will be used for the assessment of the pomegranate juice effects on the QoL of the patients. The questionnaire consists of two parts; the first part assesses parameters such as activity, pain, emotional reaction, sleep, social isolation, and mobility, whereas the second part evaluates the effects of health or disease on the activities of daily living. Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Determination of antioxidant enzyme Catalase (CAT) Spectrophotometric evaluation of the activity of the antioxidant enzyme CAT expressed in U/gr Hb (haemoglobin) in red blood cell lysate (RBCL). The enzyme activity will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the total antioxidant capacity (TAC) of plasma TAC will be evaluated spectrophotometrically in plasma expressed as mmol DPPH•/ml. TAC levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary In vitro evaluation of antioxidant and reducing properties of the administered pomegranate juice The antioxidant and reducing properties of pomegranate juice will be evaluated using specific in vitro tests: 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), hydroxyl radical, superoxide radical, Fe+3 to Fe2+ reduction) expressed in half maximal inhibitory concentration (IC50) (µl). Day 1
Secondary Measurement of the concentration of protein carbonyls Protein carbonyls, as a biomarker of protein oxidation, will be evaluated in plasma spectrophotometrically expressed in nmol/mg protein. The levels of protein carbonyls will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of thiobarbituric acid reactive substances (TBARS) TBARS, a biomarker of lipid peroxidation, will be evaluated in plasma spectrophotometrically expressed in µmol/l. The levels of TBARS will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the capacity of plasma to reduce hydroxyl radical (OH•) Spectrophotometric evaluation of the ability of plasma to reduce hydroxyl radical expressed in mmol deoxyribose/ml. The reducing capacity of plasma will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the capacity of plasma to reduce superoxide radical (O2•-) Spectrophotometric evaluation of the ability of plasma to reduce superoxide radical expressed in % scavenging capacity. The reducing capacity of plasma will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the reducing power Spectrophotometric evaluation of the ability of plasma to reduce Fe+3 to Fe+2 expressed in mmol potassium ferricyanide/ml. The reducing capacity of plasma will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of GSH concentration The reduced form of glutathione (GSH) as a crucial antioxidant molecule will be measured spectrophotometrically and its levels will be expressed in µmol/g Hb. GSH levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the activity of the antioxidant enzyme superoxide dismutase (SOD) The activity of the antioxidant enzyme SOD expressed in U/gr Hb (haemoglobin) will be measured in red blood cell lysate (RBCL). SOD activity levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the activity of the antioxidant enzyme glutathione peroxidase (GPx) The activity of the antioxidant enzyme GPx expressed in U/gr Hb (haemoglobin) will be measured in red blood cell lysate (RBCL). GPx activity levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the activity of the antioxidant enzyme glutathione reductase (GR) The activity of the antioxidant enzyme GR expressed in U/gr Hb (haemoglobin) will be measured in red blood cell lysate (RBCL). GR activity levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of interferon gamma (IFN-?) IFN-?, expressed in pg/ml, is a cytokine that recruits macrophages at the site of inflammation. Its concentration will be assessed through immunofluorescence. IFN-? levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of interferon alpha-2 (IFN-a2) IFN-a2, expressed in pg/ml, regulates the activation of the immune system and inhibits cell proliferation. Its concentration will be assessed through immunofluorescence. IFN-a2 levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of interleukin-1 betta (IL-1b) IL-1b, expressed in pg/ml, is activated by macrophages and neutrophils and regulate immune response. Its concentration will be assessed through immunofluorescence. IL-1b levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of interleukin-8 (IL-8) Chemokine IL-8, expressed in pg/ml, induces chemotaxis of neutrophils and other granulocytes in an inflammation site. Its concentration will be assessed through immunofluorescence. IL-8 levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of monocyte chemoattractant protein-1 (MCP-1) MCP-1,expressed in pg/ml, recruits monocytes, lymphocytes, and neutrophils at the site of inflammation. Its concentration will be assessed through immunofluorescence. MCP-1 levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of interleukin-1 alpha (IL-1a) IL-1a, expressed in pg/m, regulates immune response after its activation by macrophages and neutrophils. Its concentration will be assessed through immunofluorescence. IL-1a levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of tumor necrosis factor alpha (TNF-a) TNF-a, expressed in pg/ml, is realised by macrophages for cell signaling as part of the immune response. Its concentration will be assessed through immunofluorescence. TNF-a levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of melatonin Melatonin is involved in circadian regulation through sleep-wake timing. Saliva samples will be taken at 22.00 in dim light by patients themselves under oral and typed guidelines. Dim light melatonin onset (DLMO) concentration will be measured using enzyme-linked immunosorbent assay (ELISA) and will be expressed in pg/ml. Melatonin levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
Secondary Measurement of the concentration of cortisol Cortisol belongs to glycocorticoid class of hormones related with stress system and can weaken the activity of immune system through the releasing of cytokines in inflammation site. Plasma samples will be collected early in the morning and cortisol concentration will be expressed in pg/ml and be measured using enzyme-linked immunosorbent assay (ELISA). Cortisol levels will be compared between Day 1 (baseline) and the following time points: Day 60, Day 120, six months following the end of the experiment (follow-up measurement). Day 1; Day 60; Day 120, six months following the end of the experiment (follow-up measurement)
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