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  1. Book ; Online ; E-Book: The kappa opioid receptor

    Liu-Chen, Lee-Yuan / Inan, Saadet

    (Handbook of experimental pharmacology ; 271)

    2022  

    Author's details Lee-Yuan Liu-Chen, Saadet Inan editors
    Series title Handbook of experimental pharmacology ; 271
    Collection
    Keywords Electronic books
    Language English
    Size 1 Online-Ressource (xi, 577 Seiten), Illustrationen, Diagramme
    Publisher Springer
    Publishing place Cham
    Publishing country Switzerland
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT021202506
    ISBN 978-3-030-89074-2 ; 9783030890735 ; 3-030-89074-0 ; 3030890732
    DOI 10.1007/978-3-030-89074-2
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article: Kappa Opioid Agonist-Induced Diuresis: Characteristics, Mechanisms, and Beyond.

    Inan, Saadet

    Handbook of experimental pharmacology

    2021  Volume 271, Page(s) 401–417

    Abstract: Activation of the kappa opioid receptor (KOR) induces antinociception, anti-pruritic activity, diuresis, sedation, and dysphoria. KOR agonist-induced diuresis is characterized as water diuresis, in which water excretion with urine is increased without ... ...

    Abstract Activation of the kappa opioid receptor (KOR) induces antinociception, anti-pruritic activity, diuresis, sedation, and dysphoria. KOR agonist-induced diuresis is characterized as water diuresis, in which water excretion with urine is increased without altering electrolyte excretion. Both centrally and peripherally acting KOR agonists promote diuresis. KOR antagonists block KOR agonist-evoked diuresis suggesting that the diuretic effect is through activation of the KOR. Studies in different experimental animal species and in humans indicate that KOR agonists decrease antidiuretic hormone (ADH) secretion and release from the hypothalamus and posterior pituitary; decrease response to ADH in kidneys; increase renal sympathetic nerve activity; and increase adrenaline, noradrenaline, and dopamine release from the adrenal medulla. The therapeutic potentials of KOR agonists as water diuretics have been studied in animal models of cerebral edema due to ischemia and intracranial mass, hypertension, and cirrhosis. This chapter reviews characteristics, possible mechanisms, as well as therapeutic potentials of KOR agonist-induced diuresis.
    MeSH term(s) Analgesics, Opioid/pharmacology ; Animals ; Diuresis ; Dopamine ; Humans ; Narcotic Antagonists ; Receptors, Opioid, kappa
    Chemical Substances Analgesics, Opioid ; Narcotic Antagonists ; Receptors, Opioid, kappa ; Dopamine (VTD58H1Z2X)
    Language English
    Publishing date 2021-01-21
    Publishing country Germany
    Document type Journal Article
    ISSN 0171-2004
    ISSN 0171-2004
    DOI 10.1007/164_2020_399
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Alan Cowan: Buprenorphine from the bench to the bedside-Personal notes.

    Inan, Saadet / Guarnieri, Michael

    Journal of opioid management

    2021  Volume 17, Issue 7, Page(s) 5–7

    MeSH term(s) Analgesics, Opioid/adverse effects ; Buprenorphine/adverse effects ; Humans
    Chemical Substances Analgesics, Opioid ; Buprenorphine (40D3SCR4GZ)
    Language English
    Publishing date 2021-09-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2397614-7
    ISSN 1551-7489
    ISSN 1551-7489
    DOI 10.5055/jom.2021.0637
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Clues from planarians about interleukin-17A and stress that result from light avoidance: IL-17A antagonists reduce defensive responding in flatworms.

    Milton, Mia / Inan, Saadet / Rawls, Scott M

    Cytokine

    2023  Volume 170, Page(s) 156345

    Abstract: Emerging evidence links interleukin-17A (IL-17A) to anxiety and stress. Circulating levels of IL-17A are elevated in patients with anxiety disorders, and pharmacological blockade of IL-17 signaling or genetic deletion of IL-17 reduces anxiety-like ... ...

    Abstract Emerging evidence links interleukin-17A (IL-17A) to anxiety and stress. Circulating levels of IL-17A are elevated in patients with anxiety disorders, and pharmacological blockade of IL-17 signaling or genetic deletion of IL-17 reduces anxiety-like behaviors in mice. Given that IL-17 is one of the most conserved cytokines among animal phyla, we tested the hypothesis that anti-IL-17 treatments reduce defensive responding in planarians, the simplest animal with bilateral symmetry and a CNS with cephalization. The endpoint selected was light avoidance, which is a common phenotype of planarians and rodents and an index of defensive responding that is reduced by anxiolytic compounds in both species. Planarians were placed at the midline of a Petri dish containing water or test solution that was equally split into light and dark halves. Planarians exposed to a selective IL-17A antibody (0.1, 1, 10 pM) over a 5-min interval spent more time in the light than water-exposed planarians. Cyanidin (0.01, 0.1 1, 10 µM), an anti-inflammatory flavonoid and non-selective IL-17A inhibitor, also increased time spent in the light. Motility was not affected by IL-17A antibody or cyanidin at concentrations that reduced light avoidance, although higher concentrations reduced motility (>10 µM). Our results show that IL-17A antagonists reduce defensive responding in planarians and suggest conservation of IL-17A effects on aspects of anxiety-related behaviors.
    MeSH term(s) Animals ; Mice ; Antibodies ; Anxiety/drug therapy ; Interleukin-17/antagonists & inhibitors ; Planarians ; Water ; Stress, Psychological
    Chemical Substances Antibodies ; Interleukin-17 ; Water (059QF0KO0R)
    Language English
    Publishing date 2023-08-23
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1018055-2
    ISSN 1096-0023 ; 1043-4666
    ISSN (online) 1096-0023
    ISSN 1043-4666
    DOI 10.1016/j.cyto.2023.156345
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Oxycodone: A Current Perspective on Its Pharmacology, Abuse, and Pharmacotherapeutic Developments.

    Barrett, James E / Shekarabi, Aryan / Inan, Saadet

    Pharmacological reviews

    2023  Volume 75, Issue 6, Page(s) 1062–1118

    Abstract: Oxycodone, a semisynthetic derivative of naturally occurring thebaine, an opioid alkaloid, has been available for more than 100 years. Although thebaine cannot be used therapeutically due to the occurrence of convulsions at higher doses, it has been ... ...

    Abstract Oxycodone, a semisynthetic derivative of naturally occurring thebaine, an opioid alkaloid, has been available for more than 100 years. Although thebaine cannot be used therapeutically due to the occurrence of convulsions at higher doses, it has been converted to a number of other widely used compounds that include naloxone, naltrexone, buprenorphine, and oxycodone. Despite the early identification of oxycodone, it was not until the 1990s that clinical studies began to explore its analgesic efficacy. These studies were followed by the pursuit of several preclinical studies to examine the analgesic effects and abuse liability of oxycodone in laboratory animals and the subjective effects in human volunteers. For a number of years oxycodone was at the forefront of the opioid crisis, playing a significant role in contributing to opioid misuse and abuse, with suggestions that it led to transitioning to other opioids. Several concerns were expressed as early as the 1940s that oxycodone had significant abuse potential similar to heroin and morphine. Both animal and human abuse liability studies have confirmed, and in some cases amplified, these early warnings. Despite sharing a similar structure with morphine and pharmacological actions also mediated by the
    MeSH term(s) Animals ; Humans ; Oxycodone/adverse effects ; Thebaine/therapeutic use ; Analgesics, Opioid/adverse effects ; Opioid-Related Disorders/drug therapy ; Morphine/therapeutic use ; Receptors, Opioid/therapeutic use
    Chemical Substances Oxycodone (CD35PMG570) ; Thebaine (2P9MKG8GX7) ; Analgesics, Opioid ; Morphine (76I7G6D29C) ; Receptors, Opioid
    Language English
    Publishing date 2023-06-15
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 209898-2
    ISSN 1521-0081 ; 0031-6997
    ISSN (online) 1521-0081
    ISSN 0031-6997
    DOI 10.1124/pharmrev.121.000506
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Antipruritic Effects of Kappa Opioid Receptor Agonists: Evidence from Rodents to Humans.

    Inan, Saadet / Cowan, Alan

    Handbook of experimental pharmacology

    2020  Volume 271, Page(s) 275–292

    Abstract: Centrally administered bombesin induces scratching and grooming in rats. These behaviors were blocked by early benzomorphan kappa opioid receptor (KOR) agonists as reported by Gmerek and Cowan in 1984. This was the first evidence that KORs may be ... ...

    Abstract Centrally administered bombesin induces scratching and grooming in rats. These behaviors were blocked by early benzomorphan kappa opioid receptor (KOR) agonists as reported by Gmerek and Cowan in 1984. This was the first evidence that KORs may be involved in the sensation of itch-like behaviors. Subsequent development of additional animal models for acute and chronic itch has led to important discoveries since then. For example, it was found that (a) gastrin-releasing peptide (GRP), natriuretic polypeptide b and their cognate receptors are keys for the transmission of itch sensation at the spinal cord level, (b) dynorphins (Dyns), the endogenous KOR agonists, work as inhibitory neuromodulators of itch at the spinal cord level, (c) in a mouse model for acute itch, certain KOR antagonists elicit scratching, (d) in mouse models of acute or chronic itch, KOR agonists (e.g., U50,488, nalfurafine, CR 845, nalbuphine) suppress scratching induced by different pruritogens, and (e) nalfurafine, CR 845, and nalbuphine are in the clinic or in clinical trials for pruritus associated with chronic kidney disease and chronic liver disease, as well as pruritus in chronic skin diseases.
    MeSH term(s) Animals ; Antipruritics/pharmacology ; Humans ; Mice ; Narcotic Antagonists/pharmacology ; Pruritus/drug therapy ; Rats ; Receptors, Opioid, kappa/agonists ; Rodentia
    Chemical Substances Antipruritics ; Narcotic Antagonists ; Receptors, Opioid, kappa
    Language English
    Publishing date 2020-12-09
    Publishing country Germany
    Document type Journal Article
    ISSN 0171-2004
    ISSN 0171-2004
    DOI 10.1007/164_2020_420
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Blocking IL-17A prevents oxycodone-induced depression-like effects and elevation of IL-6 levels in the ventral tegmental area and reduces oxycodone-derived physical dependence in rats.

    Inan, Saadet / Meissler, Joseph J / Bessho, Shingo / Wiah, Sonita / Tukel, Cagla / Eisenstein, Toby K / Rawls, Scott M

    Brain, behavior, and immunity

    2024  Volume 117, Page(s) 100–111

    Abstract: Oxycodone is the most prescribed opioid for pain management and has been available in clinics for almost a century, but effects of chronic oxycodone have been studied less than morphine in preclinical and clinical studies. Newly developed depression has ... ...

    Abstract Oxycodone is the most prescribed opioid for pain management and has been available in clinics for almost a century, but effects of chronic oxycodone have been studied less than morphine in preclinical and clinical studies. Newly developed depression has been coupled with chronic oxycodone use in a few clinical studies, but no preclinical studies have investigated the pathogenesis of oxycodone-induced depression. Gut microbiome changes following oxycodone use is an understudied area, and interleukin-17A (IL-17A) is linked to both the development of mood disorders and regulation of gut microbiome. The present study investigated effects of chronic oxycodone exposure on mood-related behaviors (depression and anxiety), pain hypersensitivity, physical dependence, immune markers, and the gut microbiome and tested the hypothesis that blocking IL-17A with a systemically administered monoclonal antibody reduces oxycodone-derived effects. Oxycodone (using an incremental dosing regimen) or saline was injected twice a day for 12 days. IL-17A Ab (200 µg/100 µl) or saline was administered every 3rd day during the 12-day interval. Chronic oxycodone induced a depression-like effect, but not anxiogenic- or anxiolytic-like effects; promoted hyperalgesia; increased IL-17A and IL-6 levels in the ventral tegmental area (VTA); and induced physical dependence. IL-17A Ab co-administration with oxycodone prevented the depression-like effect and hyperalgesia, reduced naloxone-precipitated withdrawal signs, and normalized the increase in cytokine levels. Chronic oxycodone exposure did not affect gut microbiome and integrity. Our results identify a role for IL-17A in oxycodone-related behavioral and neuroimmune effects and show that IL-17A Ab has potential therapeutic value in blocking these effects. Given that humanized IL-17A Ab is approved for treatment of psoriasis and psoriatic arthritis, our findings point toward studying it for use in the treatment of oxycodone use disorder.
    MeSH term(s) Rats ; Animals ; Oxycodone/pharmacology ; Ventral Tegmental Area ; Interleukin-17/metabolism ; Interleukin-6/pharmacology ; Depression/drug therapy ; Hyperalgesia/drug therapy ; Substance-Related Disorders
    Chemical Substances Oxycodone (CD35PMG570) ; Interleukin-17 ; Interleukin-6
    Language English
    Publishing date 2024-01-08
    Publishing country Netherlands
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 639219-2
    ISSN 1090-2139 ; 0889-1591
    ISSN (online) 1090-2139
    ISSN 0889-1591
    DOI 10.1016/j.bbi.2024.01.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Epicutaneous Sensitization to the Phytocannabinoid β-Caryophyllene Induces Pruritic Inflammation.

    Inan, Saadet / Ward, Sara J / Baltazar, Citlalli T / Peruggia, Gabrielle A / Javed, Elham / Nayak, Ajay P

    International journal of molecular sciences

    2023  Volume 24, Issue 18

    Abstract: In recent years, there has been increased accessibility to cannabis for recreational and medicinal use. Incidentally, there has been an increase in reports describing allergic reactions to cannabis including exacerbation of underlying asthma. Recently, ... ...

    Abstract In recent years, there has been increased accessibility to cannabis for recreational and medicinal use. Incidentally, there has been an increase in reports describing allergic reactions to cannabis including exacerbation of underlying asthma. Recently, multiple protein allergens were discovered in cannabis, yet these fail to explain allergic sensitization in many patients, particularly urticaria and angioedema. Cannabis has a rich chemical profile including cannabinoids and terpenes that possess immunomodulatory potential. We examined whether major cannabinoids of cannabis such as cannabidiol (CBD) and the bicyclic sesquiterpene beta-caryophyllene (β-CP) act as contact sensitizers. The repeated topical application of mice skin with β-CP at 10 mg/mL (50 µL) induced an itch response and dermatitis at 2 weeks in mice, which were sustained for the period of study. Histopathological analysis of skin tissues revealed significant edema and desquamation for β-CP at 10 mg/mL. For CBD and β-CP, we observed a dose-dependent increase in epidermal thickening with profound thickening observed for β-CP at 10 mg/mL. Significant trafficking of CD11b cells was observed in various compartments of the skin in response to treatment with β-CP in a concentration-dependent manner. Mast cell trafficking was restricted to β-CP (10 mg/mL). Mouse proteome profiler cytokine/chemokine array revealed upregulation of complement C5/5a (anaphylatoxin), soluble intracellular adhesion molecule-1 (sICAM-1) and IL-1 receptor antagonist (IL-1RA) in animals dosed with β-CP (10 mg/mL). Moreover, we observed a dose-dependent increase in serum IgE in animals dosed with β-CP. Treatment with β-CP (10 mg/mL) significantly reduced filaggrin expression, an indicator of barrier disruption. In contrast, treatment with CBD at all concentrations failed to evoke scratching and dermatitis in mice and did not result in increased serum IgE. Further, skin tissues were devoid of any remarkable features, although at 10 mg/mL CBD we did observe the accumulation of dermal CD11b cells in skin tissue sections. We also observed increased filaggrin staining in mice repeatedly dosed with CBD (10 mg/mL). Collectively, our studies indicate that repeated exposure to high concentrations of β-CP can induce dermatitis-like pathological outcomes in mice.
    MeSH term(s) Humans ; Animals ; Mice ; Filaggrin Proteins ; Inflammation/chemically induced ; Hallucinogens ; Cannabis ; Angioedema ; Cannabidiol ; Cannabinoid Receptor Agonists ; Pruritus ; Complement C5 ; Complement C5a ; Dermatitis ; Immunoglobulin E
    Chemical Substances caryophyllene (BHW853AU9H) ; Filaggrin Proteins ; Hallucinogens ; Cannabidiol (19GBJ60SN5) ; Cannabinoid Receptor Agonists ; Complement C5 ; Complement C5a (80295-54-1) ; Immunoglobulin E (37341-29-0)
    Language English
    Publishing date 2023-09-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms241814328
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Antipruritic Effect of Nalbuphine, a Kappa Opioid Receptor Agonist, in Mice: A Pan Antipruritic.

    Inan, Saadet / Dun, Nae J / Cowan, Alan

    Molecules (Basel, Switzerland)

    2021  Volume 26, Issue 18

    Abstract: Antipruritic effects of kappa opioid receptor (KOR) agonists have been shown in rodent models of acute and chronic scratching (itchlike behavior). Three KOR agonists, nalfurafine, difelikefalin, and nalbuphine, are in clinical studies for antipruritic ... ...

    Abstract Antipruritic effects of kappa opioid receptor (KOR) agonists have been shown in rodent models of acute and chronic scratching (itchlike behavior). Three KOR agonists, nalfurafine, difelikefalin, and nalbuphine, are in clinical studies for antipruritic effects in chronic itch of systemic and skin diseases. Nalfurafine (in Japan) and difelikefalin (in the USA) were approved to be used in the treatment of chronic itch in hemodialysis patients. The FDA-approved nalbuphine has been used in clinic for over 40 years, and it is the only narcotic agonist that is not scheduled. We aimed to study (a) antiscratch activity of nalbuphine against TAT-HIV-1 protein (controls HIV transcription)-, deoxycholic acid (DCA, bile acid)-, and chloroquine (CQ)-induced scratching in a mouse model of acute itch; and (b) whether the effect of nalbuphine is produced via KORs. First, dose-responses were developed for pruritogens. Mice were pretreated with nalbuphine (0.3-10 mg/kg) and then a submaximal dose of pruritogens were administered and the number of scratching bouts was counted. To study if the antiscratch effect of nalbuphine is produced via KOR, we used KOR knock out mice and pharmacologic inhibition of KORs using nor-binaltorphimine, a KOR antagonist. For this aim, we used CQ as a pruritogen. We found that: (a) TAT-HIV-1 protein elicits scratching in a dose-dependent manner; (b) nalbuphine inhibits scratching induced by TAT-HIV-1, DCA, and CQ dose-dependently; and (c) nalbuphine inhibits scratching induced by CQ through KORs. In conclusion, nalbuphine inhibits scratching elicited by multiple pruritogens.
    MeSH term(s) Animals ; Antipruritics/pharmacology ; Antipruritics/therapeutic use ; Behavior, Animal/drug effects ; Chloroquine/toxicity ; Deoxycholic Acid/toxicity ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Male ; Mice ; Nalbuphine/pharmacology ; Nalbuphine/therapeutic use ; Naltrexone/analogs & derivatives ; Naltrexone/pharmacology ; Naltrexone/therapeutic use ; Narcotic Antagonists/pharmacology ; Narcotic Antagonists/therapeutic use ; Pruritus/chemically induced ; Pruritus/prevention & control ; Receptors, Opioid, kappa/agonists ; Receptors, Opioid, kappa/antagonists & inhibitors ; Receptors, Opioid, kappa/genetics ; Receptors, Opioid, kappa/metabolism ; tat Gene Products, Human Immunodeficiency Virus/toxicity
    Chemical Substances Antipruritics ; Narcotic Antagonists ; Receptors, Opioid, kappa ; tat Gene Products, Human Immunodeficiency Virus ; Deoxycholic Acid (005990WHZZ) ; norbinaltorphimine (36OOQ86QM1) ; Naltrexone (5S6W795CQM) ; Chloroquine (886U3H6UFF) ; Nalbuphine (L2T84IQI2K)
    Language English
    Publishing date 2021-09-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules26185517
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Antipruritic Effect of Nalbuphine, a Kappa Opioid Receptor Agonist, in Mice

    Saadet Inan / Nae J. Dun / Alan Cowan

    Molecules, Vol 26, Iss 5517, p

    A Pan Antipruritic

    2021  Volume 5517

    Abstract: Antipruritic effects of kappa opioid receptor (KOR) agonists have been shown in rodent models of acute and chronic scratching (itchlike behavior). Three KOR agonists, nalfurafine, difelikefalin, and nalbuphine, are in clinical studies for antipruritic ... ...

    Abstract Antipruritic effects of kappa opioid receptor (KOR) agonists have been shown in rodent models of acute and chronic scratching (itchlike behavior). Three KOR agonists, nalfurafine, difelikefalin, and nalbuphine, are in clinical studies for antipruritic effects in chronic itch of systemic and skin diseases. Nalfurafine (in Japan) and difelikefalin (in the USA) were approved to be used in the treatment of chronic itch in hemodialysis patients. The FDA-approved nalbuphine has been used in clinic for over 40 years, and it is the only narcotic agonist that is not scheduled. We aimed to study (a) antiscratch activity of nalbuphine against TAT-HIV-1 protein (controls HIV transcription)-, deoxycholic acid (DCA, bile acid)-, and chloroquine (CQ)-induced scratching in a mouse model of acute itch; and (b) whether the effect of nalbuphine is produced via KORs. First, dose–responses were developed for pruritogens. Mice were pretreated with nalbuphine (0.3–10 mg/kg) and then a submaximal dose of pruritogens were administered and the number of scratching bouts was counted. To study if the antiscratch effect of nalbuphine is produced via KOR, we used KOR knock out mice and pharmacologic inhibition of KORs using nor-binaltorphimine, a KOR antagonist. For this aim, we used CQ as a pruritogen. We found that: (a) TAT-HIV-1 protein elicits scratching in a dose-dependent manner; (b) nalbuphine inhibits scratching induced by TAT-HIV-1, DCA, and CQ dose-dependently; and (c) nalbuphine inhibits scratching induced by CQ through KORs. In conclusion, nalbuphine inhibits scratching elicited by multiple pruritogens.
    Keywords nalbuphine ; kappa opioid receptor agonist ; pruritis ; scratching ; mice ; TAT-HIV ; Organic chemistry ; QD241-441
    Subject code 616
    Language English
    Publishing date 2021-09-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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