Tıp Fakültesi / Faculty of Medicine

Permanent URI for this collectionhttps://hdl.handle.net/11727/1403

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    Efficacy of Acupuncture on Pain Mechanisms, Inflammatory Responses, and Wound Healing in the Acute Phase of Major Burns: An Experimental Study on Rats
    (2021) Abali, Ayse Ebru; Cabioglu, Tugrul; Bayraktar, Nilufer; Ozdemir, Binnaz Handan; Moray, Gokhan; Haberal, Mehmet; 0000-0002-3462-7632; 0000-0002-1298-7944; 34309681; AAJ-8097-2021; AAE-8704-2021
    We investigated acupuncture, a potential contributor for burn care, on physiological and pathological pain mechanisms and systemic and local inflammatory responses in a rat experimental burn model. Forty male Sprague-Dawley rats were divided into two groups. One-hour groups (five rats/group) were observed for 1 hour and included Sh1 (sham/observation), ShA1 (sham + acupuncture/observation), Brn1 (burn/observation), and BrnA1 (burn + acupuncture/ observation). Seven-day groups (five rats/group) were observed for 7 days and included Sh7 (sham/observation), ShA7 (sham + acupuncture/observation), Brn7 (burn/observation), and BrnA7 (burn + acupuncture/observation). "Pain-distress scores" were noted daily, and acupuncture was repeated within every wound-dressing change on alternate days. After observation periods, blood samples for interleukin 6 and beta-endorphin and skin biopsies for inflammatory changes and immunohistochemical staining of interleukin 6 were collected for analysis(P <.05). In 1-hour groups, interleukin 6 accumulation in burn wounds of BrnA1 was less than Brn1, with Brn1 having the highest mean blood level (P <.05). Mean beta-endorphin levels were higher in ShA1, Brn1, and BrnA1 than in Sh1 (P <.05). In all 7-day groups, the agonizing period was 48 to 72 hours after burn, with Brn7 most affected (P <.05). Microvessels were multiplied in the Brn7 group, with significantly higher numbers in burn wounds of BrnA7 (P<.05). Burn wounds of BrnA7 had less accumulation of interleukin 6 than Brn7 with the Brn7 group having the highest mean blood level and Sh7, ShA7, and BrnA7 having similarly low levels (P>.05). Beta-endorphin levels in ShA7, Brn7, and BrnA7 were lower than in Sh7 (P <.05). Acupuncture contributed to the management of physiological and pathological pain, modulation of inflammatory responses, and associated enhancement of angiogenesis in the acute phase of burn injury in rats.
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    Single-Nucleotide Polymorphisms on the RYD5 Gene in Nasal Polyposis
    (2015) Ozdas, Sibel; Izbirak, Afife; Ozdas, Talih; Ozcan, Kursat Murat; Erbek, Selim S.; Koseoglu, Sabri; Dere, Huseyin; 26204469
    Nasal polyposis (NP) is a chronic inflammatory disease. Several genes play major roles in the pathophysiology of the disease. We analyzed RYD5 gene polymorphisms to determine the effect of these variants or their genetic combinations on NP. We genotyped the RYD5 gene in 434 participants (196 patients with NP and 238 controls). Data were analyzed with SPSS, SNPStats, and multifactor dimensionality reduction (MDR) software. We genotyped 10 single-nucleotide polymorphisms (SNPs) in the RYD5 gene. RYD5 (+152G>T) (p.Gly51Va) has not been reported previously. The PolyPhen and PROVEAN predicted the missense mutation as deleterious, but sorting intolerant from tolerant (SIFT) did not. In the genotype analysis, we found that four SNPs (RYD5 [-264A>G], [-103G>A], [+57-14C>T], and [+66A>G]) were significantly associated with NP. The individuals with combined genotypes of six risk alleles (RYD5-264G, -103A, +13C, +57-14T, +66G, and +279T) had significantly higher risks for NP compared with the ones with one or four risk alleles. Haplotype analysis revealed that the two haplotypes were associated with risk of NP. As indicated by MDR analysis, RYD5 (-264A>G and -103G>A) and RYD5 (-264A>G, -177C>A, and -103G>A) were the best predictive combinations and they had the highest synergistic interaction on NP. In addition, RYD5 (+13C>T) was significantly associated with increased risk of both NP with asthma and NP with allergy and asthma. Some SNPs and their combinations in the RYD5 gene are associated with increased probability for developing NP. We emphasize the importance of genetic factors on NP and NP-related clinical phenotypes.