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1.
J Sex Med ; 18(10): 1715-1720, 2021 10.
Article in English | MEDLINE | ID: mdl-34511368

ABSTRACT

BACKGROUND: A total of 78 patients aged 11 to 17 years were diagnosed with congenital ventral penile curvature and underwent surgery with the dorsal plication technique between 2005 and 2014. AIM: To investigate the long-term outcomes of 72 patients who underwent dorsal penile plication for the treatment of congenital ventral penile curvature without hypospadias. METHODS: In all cases, the intervascular space between the deep dorsal vein and dorsal artery was dissected, and tunical plication was carried out with non-absorbable 3-0 polyamide sutures and the complication and satisfaction rates of the patients were determined in the postoperative seventh year. OUTCOMES: At the final postoperative follow-up, the patients' satisfaction with the operation was found to be 95.8%. RESULTS: Shortening of the penis (0.5-1 cm) in five cases, recurrence with less than a 20-degree curvature in two cases, palpable sutures in two cases was observed and no patients reported erectile dysfunction. STRENGTHS & LIMITATIONS: The limitations of our study can be considered as the absence of pharmacological erection in the preoperative evaluation, failure to evaluate penile length at the last postoperative follow-up due to the continued development of the penis, inability to evaluate erectile function at the beginning, postoperative erectile capacity being assessed in only some of the operated cases, all operations being performed by a single surgeon in the same center, and the absence of standardized questionnaires for postoperative satisfaction or adverse events. CONCLUSION: According to the results of this study, dorsal plication is a relatively simple method with a low risk and high success rate for the treatment of congenital ventral penile curvatures. Akdemir F, Kayigil Ö, Okulu E. DORSAL Plication Technique for the Treatment of Congenital Ventral Penile Curvature: Long-Term Outcomes of 72 Cases. J Sex Med 2021;18:1715-1720.


Subject(s)
Erectile Dysfunction , Hypospadias , Penile Induration , Humans , Male , Penile Erection , Penis/surgery , Retrospective Studies , Treatment Outcome
2.
Biochem Biophys Res Commun ; 516(1): 163-170, 2019 08 13.
Article in English | MEDLINE | ID: mdl-31204054

ABSTRACT

BACKGROUND: Retina photoreceptor cells are specially adapted for functioning over comprehensive ambient light conditions. Lutein and Zeaxanthin isomers (L/Zi) can protect photoreceptor cells against excessive light degeneration. Efficacy of L/Zi has been assessed on some G protein-coupled receptors (GPCRs), transcription and neurotrophic factors in the retina of rats exposed to incremental intense light emitting diode (LED) illumination conditions. METHODS: Forty-two male rats (age: 8 weeks) were randomly assigned to six treatment groups, 7 rats each. The rats with a 3x2 factorial design were kept under 3 intense light conditions (12hL/12hD, 16hL/8hD, 24hL/0hD) and received two levels of L/Zi (0 or 100 mg/kg BW) for two months. Increased nuclear factor-kappa B (NF-κB), glial fibrillary acid protein (GFAP), and decreased Rhodopsin (Rho), Rod arrestin (Sag), G Protein Subunit Alpha Transducin1 (Gnat1), neural cell adhesion molecule (NCAM), growth-associated protein-43 (GAP43), nuclear factor (erythroid-derived 2)-like 2 (Nrf2), and heme oxygenase 1 (HO-1) were observed in 24 h light intensity adaptation followed by 16 h IL and 8 h D. RESULTS: L/Zi administration significantly improved antioxidant capacity and retinal Rho, Rod-arrestin (Sag), Gnat1, NCAM, GAP43, BDNF, NGF, IGF1, Nrf2, and HO-1 levels. However, the levels of NF-κB and GFAP levels were decreased by administration of L/Zi. CONCLUSIONS: According to these results, L/Zi may be assumed as an adjunct therapy to prevent early photoreceptor cell degeneration and neutralize free radicals derived from oxidative stress.


Subject(s)
Antioxidants/pharmacology , Lutein/pharmacology , Oxidative Stress/drug effects , Retina/drug effects , Zeaxanthins/pharmacology , Animals , Antioxidants/chemistry , Intercellular Signaling Peptides and Proteins/metabolism , Isomerism , Light/adverse effects , Lutein/chemistry , Male , Rats , Rats, Wistar , Receptors, G-Protein-Coupled/metabolism , Retina/metabolism , Retina/radiation effects , Retinal Degeneration/etiology , Retinal Degeneration/metabolism , Retinal Degeneration/prevention & control , Zeaxanthins/chemistry
3.
Food Chem Toxicol ; 125: 242-251, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30634014

ABSTRACT

The purpose of this study was to test the effects of arginine-silicate-inositol complex (ASI), compared to a combination of the individual ingredients (A+S+I) of the ASI, on inflammatory markers and joint health in a collagen-induced arthritis (CIA) rat model. A total of 28 Wistar rats were divided into four groups: (i) Control; (ii) Arthritic group, rats subjected to CIA induction by injection of bovine collagen type II (A); (iii) Arthritic group treated with equivalent doses of the separate components of the ASI complex (arginine hydrochloride, silicon, and inositol) (A+S+I); (iv) Arthritic group treated with the ASI complex. The ASI complex treatment showed improved inflammation scores and markers over the arthritic control and the A+S+I group. ASI group had also greater levels of serum and joint-tissue arginine and silicon than the A+S+I group. Joint tissue IL-6, NF-κB, COX-2, TNF-α, p38 MAPK, WISP-1, and ß-Catenin levels were lower in the ASI group compared to the other groups (P < 0.05 for all). In conclusion, these results demonstrate that the ASI complex may be effective in reducing markers of inflammation associated with joint health and that the ASI complex is more effective than a combination of the individual ingredients.


Subject(s)
Arginine/therapeutic use , Arthritis, Experimental/drug therapy , Arthritis, Rheumatoid/drug therapy , Inositol/therapeutic use , Silicates/therapeutic use , Animals , Arginine/blood , Arthritis, Rheumatoid/chemically induced , CCN Intercellular Signaling Proteins/genetics , Collagen Type II , Cyclooxygenase 2/genetics , Cytokines/genetics , Down-Regulation/drug effects , Drug Combinations , Female , Inflammation/drug therapy , Joints/pathology , Mitogen-Activated Protein Kinases/genetics , NF-kappa B/genetics , Proto-Oncogene Proteins/genetics , Rats, Wistar , Up-Regulation/drug effects , beta Catenin/genetics
4.
Cutan Ocul Toxicol ; 38(2): 161-168, 2019 Jun.
Article in English | MEDLINE | ID: mdl-30513212

ABSTRACT

PURPOSE: Zeaxanthin protects the macula from ocular damage due to light or radiation by scavenging harmful reactive oxygen species. In the present study, zeaxanthin product (OmniXan®; OMX), derived from paprika pods (Capsicum annum; Family-Solanaceae), was tested for its efficacy in the rat retina against photooxidation. METHODS: Forty-two male 8-week-old Wistar rats exposed to 12L/12D, 16L/8D and 24L/0D hours of intense light conditions were orally administrated either 0 or 100 mg/kg BW of zeaxanthin concentration. Retinal morphology was analyzed by histopathology, and target gene expressions were detected with real-time polymerase chain reaction methods. RESULTS: OMX treatment significantly increased the serum zeaxanthin concentration (p < 0.001) and ameliorated oxidative damage by increasing the antioxidant enzyme activities in the retina induced by light (p < 0.001). OMX administration significantly upregulated the expression of genes, including Rhodopsin (Rho), Rod arrestin (SAG), Gα Transducin 1 (GNAT-1), neural cell adhesion molecule (NCAM), growth-associated protein 43 (GAP43), nuclear factor-(erythroid-derived 2)-like 2 (Nrf2) and heme oxygenase (HO-1) and decreased the expression of nuclear factor-κB (NF- κB) and GFAP by OMX treatment rats. The histologic findings confirmed the antioxidant and gene expression data. CONCLUSIONS: This study suggests that OMX is a potent substance that can be used to protect photoreceptor cell degeneration in the retina exposed to intense light.


Subject(s)
Anti-Inflammatory Agents/therapeutic use , Antioxidants/therapeutic use , Light/adverse effects , Retinal Degeneration/drug therapy , Zeaxanthins/therapeutic use , Animals , Anti-Inflammatory Agents/blood , Anti-Inflammatory Agents/pharmacology , Antioxidants/pharmacology , Biomarkers/metabolism , Eye Proteins/genetics , Gene Expression Regulation/drug effects , Gene Expression Regulation/radiation effects , Male , Malondialdehyde/metabolism , Rats, Wistar , Retina/drug effects , Retina/metabolism , Retina/pathology , Retina/radiation effects , Retinal Degeneration/genetics , Retinal Degeneration/metabolism , Retinal Degeneration/pathology , Zeaxanthins/blood , Zeaxanthins/pharmacology
5.
Commun Biol ; 1: 110, 2018.
Article in English | MEDLINE | ID: mdl-30271990

ABSTRACT

In mammals, blood glucose levels likely play a role in appetite regulation yet the mechanisms underlying this phenomenon remain opaque. Mechanisms can often be explored from Drosophila genetic approaches. To determine if circulating sugars might be involved in Drosophila feeding behaviors, we scored hemolymph glucose and trehalose, and food ingestion in larvae subjected to various diets, genetic mutations, or RNAi. We found that larvae with glucose elevations, hyperglycemia, have an aversion to feeding; however, trehalose levels do not track with feeding behavior. We further discovered that insulins and SLC5A11 may participate in glucose-regulated feeding. To see if food aversion might be an appropriate screening method for hyperglycemia candidates, we developed a food aversion screen to score larvae with abnormal feeding for glucose. We found that many feeding defective larvae have glucose elevations. These findings highlight intriguing roles for glucose in fly biology as a potential cue and regulator of appetite.

6.
Article in English | MEDLINE | ID: mdl-29853975

ABSTRACT

Mucuna pruriens, Ashwagandha, and Tribulus terrestris are known as the enhancers for sexual health, functional activities, vitality, and longevity. These herbs had been widely used in the Ayurveda medicine as aphrodisiacs through the ages, and their efficacy was also verified separately in our previous publication. Therefore, the aim of this study was to determine the effects of Mucuna, Ashwagandha, and Tribulus complexes on sexual function in rats. Twenty-eight male rats allocated to four groups as follows: (i) negative control (C); (ii) positive control or sildenafil citrate treated group (5 mg/kg) (S); (iii) MAT1 (combination of 10 mg Mucuna (M) + 10 mg Ashwagandha (A) + 10 mg Tribulus (T)/kg BW); (iv) MAT 2 (20 mg Mucuna + 20 mg Ashwagandha + 20 mg Tribulus/kg BW). There was no significant difference found between the MAT1 and MAT2 groups while they showed significantly increased testosterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) levels when compared to the negative control. Significant increases in Nrf2/HO1 levels and decreases in NF-κB were detected in MAT groups similar to the decrease in serum and testis malondialdehyde (MDA) levels as compared to both controls. The sperm motility, count, and rate also significantly improved in both MAT groups, while ALT, AST, creatinine, ALP, and urea levels did not change in any of the groups. Oral consumption of MATs combination in male rats resulted in inhibition of NF-κB and MDA and also increased sex hormones with Nrf2-mediated HO-1 induction. MAT combinations may improve sexual functions by increasing levels of sexual hormones and regulation of NF-κB and Nrf2/HO-1 signaling pathways.

7.
Int J Impot Res ; 30(2): 71-78, 2018 Apr.
Article in English | MEDLINE | ID: mdl-29255189

ABSTRACT

This study aimed to investigate the long-term outcomes of the surgical combination of revascularization and penile corrective techniques after having obtained promising preliminary results from a previous study. Between 2008 and 2015, the combined treatment was undertaken for 60 patients with Peyronie's disease and erectile dysfunction. A preoperative urological evaluation was performed with penile color Doppler ultrasonography, electromyography of the corpus cavernosum and cavernosometry. All the patients completed 15-item and 5-item IIEFs preoperatively and at postoperative follow-up. The mean age of the patients was 53.78 ± 6.48 years ranging from 47 to 63. The mean follow-up period was 48 (14-68) months. The degree of penile angulation was >40 in all the patients. Urethra dissection was required in five patients. Penile disassembly was performed on one patient due to distal complex corporeal deformity. None of the patients reported complications after surgery. The mean total IIEF score was reported to be 25.4 ± 2.8 before the operation and 52.23 ± 1.2 at the end of the follow-up (p < 0.05). The mean IIEF-5 score was 7.3 ± 1.3 preoperatively and 20.9 ± 1.9 at the end of follow-up (p < 0.05). The results of IIEF-15 for erectile function demonstrated that 32 patients had a cutoff value of >26, indicating no ED. Although all patients had complete penile straightening, 7 (11.66%) reported shortening of the penis but was not dissatisfied with the treatment. The number of patients satisfied with the outcomes of the operation was 53. The statistically significant improvement and satisfactory results achieved with the IIEF questionnaires suggest that the proposed combined treatment could be an alternative to penile prosthesis in highly selected patients with Peyronie's disease, particularly those with erectile dysfunction; however, more studies are needed to confirm these results.


Subject(s)
Erectile Dysfunction/surgery , Penile Induration/surgery , Penis/surgery , Urologic Surgical Procedures, Male , Erectile Dysfunction/complications , Erectile Dysfunction/diagnostic imaging , Humans , Male , Middle Aged , Patient Satisfaction , Penile Erection , Penile Induration/complications , Penile Induration/diagnostic imaging , Penis/diagnostic imaging , Treatment Outcome , Ultrasonography, Doppler, Color
8.
Turk J Urol ; 43(4): 563-565, 2017 Dec.
Article in English | MEDLINE | ID: mdl-29201527

ABSTRACT

Since calcified nodule of the testis is seen very rarely, its etiology and diagnostic approach are not fully known. There have been a few cases reported in the literature. The objective of this study was to review the literature and report the case of a 30-year-old patient, who applied to our clinic due to a suspicious stiffness in his testis and underwent partial orchiectomy.

9.
Food Nutr Res ; 61(1): 1353360, 2017.
Article in English | MEDLINE | ID: mdl-28804442

ABSTRACT

Background: Mesozeaxanthin (MZ) is a macular carotenoid which has been reported to have a number of pharmacological properties, including the antioxidant, and anticarcinogenic property, and has been stated to decrease the hepatocyte lipid content. Objective: In this study, we investigated the effect of MZ on cardio-metabolic health risk (CMHR) and its probable mechanisms of action in rats fed a high-fat diet (HFD). Design: Rats were randomly divided into four groups consisting of (i) Control, (ii) MZ, (iii) HFD, and (iv) HFD+MZ. Results: MZ treatment increased the antioxidant enzyme activities and helped improve the liver function. The treatment alleviated CMHR and decreased the level of nuclear factor kappa B (NF-κB p65) and tumor necrosis factor-alpha (TNF-α). The levels of hepatic peroxisome proliferator-activated receptor gamma (PPAR-γ), phosphorylated insulin receptor substrate 1 (p-IRS-1), ß,ß-carotene 9',10'-oxygenase 2 (BCO2) and nuclear factor erythroid 2-related factor 2 (Nrf2), which decrease in HFD rats, were found to be significantly higher in MZ supplemented animals. Conclusion: MZ has antioxidant and anti-inflammatory properties and can is reported in this study toprotect against fatty liver and cardio-metabolic syndrome, possibly through regulation of PPAR-γ, IRS-1, Nrf2 and NF-κB proteins, in an insulin-resistant rodent model.

10.
Food Chem Toxicol ; 107(Pt A): 270-279, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28689061

ABSTRACT

The aim of this experiment was to determine the effects of ß-cryptoxanthin (BCX) on the cardiometabolic health risk factors and NF-κB and Nrf2 pathway in insulin resistance induced by high-fat diet (HFD) in rodents. Twenty-eight Sprague-Dawley rats were allocated into four groups: (1) Control, rats fed a standard diet for 12 weeks; (2) BCX, rats fed a standard diet and supplemented with BCX (2.5 mg/kg BW) for 12 weeks; (3) HFD, rats fed a HFD for 12 weeks, (4) HFD + BCX, rats fed a HFD and supplemented with BCX for 12 weeks. BCX reduced cardio-metabolic health markers and decreased inflammatory markers (P < 0.001). Rats fed a HFD had the lower total antioxidant capacity and antioxidant enzymes activities and higher MDA concentration than control rats (P < 0.001 for all). Comparing with the HFD group, BCX in combination with HFD inhibited liver NF-κB and TNF-α expression by 22% and 14% and enhanced liver Nrf2, HO-1, PPAR-α, and p-IRS-1 by 1.43, 1.41, 3.53, and 1.33 fold, respectively (P < 0.001). Furthermore, in adipose tissue, BCX up-regulated Nrf2, HO-1, PPAR-α, and p-IRS-1 expression, whereas, down-regulated NF-κB and TNF-α expression. In conclusion, BCX decreased visceral fat and cardiometabolic health risk factors through modulating expressions of nuclear transcription factors.


Subject(s)
Beta-Cryptoxanthin/administration & dosage , Diet, High-Fat/adverse effects , Insulin Resistance , NF-kappa B/metabolism , Adipose Tissue/metabolism , Animals , Beta-Cryptoxanthin/metabolism , Blood Glucose/metabolism , Humans , Insulin/metabolism , Liver/drug effects , Liver/metabolism , Male , Malondialdehyde/metabolism , NF-E2-Related Factor 2 , NF-kappa B/genetics , Oxidative Stress/drug effects , Rats , Rats, Sprague-Dawley
11.
Turk J Urol ; 42(4): 299-302, 2016 Dec.
Article in English | MEDLINE | ID: mdl-27909626

ABSTRACT

Intracranial metastasis of prostate cancer is rarely seen, and there are few studies in this regard in the literature. Most of these studies in the literature comprise the metastasis of prostate cancer to the sphenoid sinus, and metastasis to the frontal and ethmoid sinus is a much rare entity. Association of visual symptoms, epistaxis, headache, and hematuria may indicate a urologic malignancy in terms of the origin of the primary tumor. This study was aimed to present the prostate cancer case of a 73-year-old patient whose paranasal sinus tomograms revealed the presence of frontal and ethmoid sinus metastasis.

12.
Drug Des Devel Ther ; 10: 3771-3778, 2016.
Article in English | MEDLINE | ID: mdl-27895467

ABSTRACT

The purpose of this study was to induce experimental periodontitis in rats previously fed diets containing arginine silicate inositol (ASI) complex and examine the biochemical, immunological, and radiological effects. Fifty two 8-week-old female Sprague Dawley rats were equally divided into four groups. The control group included those fed a standard rat diet with no operation performed during the experiment. The periodontitis, ASI I, and ASI II groups were subjected to experimental periodontitis induction for 11 days after being fed a standard rat diet alone, a diet containing 1.81 g/kg ASI complex, or a diet containing 3.62 g/kg ASI complex, respectively, for 8 weeks. Throughout the 11-day duration of periodontitis induction, all rats were fed standard feed. The rats were euthanized on the eleventh day, and their tissue and blood samples were collected. In the periodontitis group, elevated tissue destruction parameters and reduced tissue formation parameters were found, as compared to the ASI groups. Levels of enzymes, cytokines, and mediators associated with periodontal tissue destruction were lower in rats fed a diet containing ASI complex after experimental periodontitis. These results indicate that ASI complex could be an alternative agent for host modulation.


Subject(s)
Arginine/pharmacology , Inositol/pharmacology , Periodontitis/drug therapy , Silicates/pharmacology , Animals , Arginine/administration & dosage , Arginine/therapeutic use , Diet , Disease Models, Animal , Drug Combinations , Female , Gingiva/diagnostic imaging , Gingiva/drug effects , Gingiva/pathology , Inositol/administration & dosage , Inositol/therapeutic use , Ligation , Periodontitis/metabolism , Periodontitis/physiopathology , Rats , Rats, Sprague-Dawley , Silicates/administration & dosage , Silicates/therapeutic use
13.
BMC Complement Altern Med ; 16(1): 318, 2016 Aug 26.
Article in English | MEDLINE | ID: mdl-27561457

ABSTRACT

BACKGROUND: Mucuna pruriens, Tribulus terrestris and Ashwagandha (Withania somnifera) are widely known as antioxidant effective herbals and have been reported to possess aphrodisiac activities in traditional usages. In this study, we determined the effects of these herbals on sexual functions, serum biochemical parameters, oxidative stress and levels of NF-κB, Nrf2, and HO-1 in reproductive tissues. METHODS: Thirty-five male rats were divided into five groups: the control group, sildenafil-treated group (5 mg/kg/d), Mucuna, Tribulus and Ashwagandha groups. The extract groups were treated orally either with Mucuna, Tribulus or Ashwagandha (300 mg/kg b.w.) for 8 weeks. RESULTS: All of the extracts were found to be significantly effective in sexual functioning and antioxidant capacity and Tribulus showed the highest effectiveness. Serum testosterone levels significantly increased in Tribulus and Ashwagandha groups in comparison to control group. Tribulus was able to reduce the levels of NF-κB and increase the levels of Nrf2 and HO-1 to a much greater extent than Mucuna and Ashwagandha. CONCLUSIONS: These results demonstrate for the first time that Mucuna, Tribulus and Ashwagandha supplementation improves sexual function in male rats via activating Nrf2/ HO-1 pathway while inhibiting the NF-κB levels. Moreover, Tribulus terrestris extract was found to be more bioavailable from Ashwagandha extract followed by Mucuna extract. Schematic representation of the mode of action of some aphrodisiac herbal extracts to improve sexual functions.


Subject(s)
Aphrodisiacs/pharmacology , NF-E2-Related Factor 2/metabolism , NF-kappa B/metabolism , Plant Extracts/pharmacology , Sexual Behavior, Animal/drug effects , Animals , Aphrodisiacs/chemistry , Fertility/drug effects , Genitalia, Male/chemistry , Genitalia, Male/drug effects , Male , Plant Extracts/chemistry , Rats , Signal Transduction/drug effects , Spermatozoa/drug effects
14.
J Ocul Pharmacol Ther ; 32(9): 631-637, 2016 11.
Article in English | MEDLINE | ID: mdl-27463036

ABSTRACT

PURPOSE: Mesozeaxanthin (MZ) is able to protect against chronic and cumulative eye damage and neutralize free radicals produced by oxidative stress. The objective of the present study was to evaluate the protective potential of MZ against retinal oxidative damage and growth and transcription factors of the retina in rats fed with high-fat diet (HFD). METHODS: Twenty-eight Sprague Dawley rats were randomly divided into the following 4 groups: (1) Control, (2) MZ (100 mg/kg bw/d), (3) HFD (42% of calories as fat), and (4) HFD+MZ (100 mg/kg bw/d) group rats were administered daily as supplement for 12 weeks. RESULTS: Consumption of HFD was associated with hyperglycemia and oxidative stress as reflected by increased serum MDA concentration (P < 0.001). No measurable zeaxanthin (Z)+MZ and lutein (L) could be detected in the serum of control and HFD rats, whereas they were observed in the serum of MZ-administered rats. Retinal antioxidant enzyme [superoxide dismutase (SOD) and catalase (CAT)] activities were significantly decreased in the HFD group compared to the normal group (P < 0.01). However, retinal antioxidant enzymes were restored close to normal levels in HFD+MZ-treated rats (P < 0.05). The retina of rats fed with HFD had increased levels of vascular endothelial growth factor (VEGF), inducible nitric oxide (iNOS), intercellular adhesion molecule-1 (ICAM-1), and nuclear factor-kappa B (NF-κB) levels and decreased nuclear factor erythroid 2-related factor 2 (Nrf2) and heme-oxygenase 1(HO-1) levels compared to the healthy rat retina (P < 0.001). Rats treated with MZ partially alleviated the inflammation as reflected by suppressed VEGF, iNOS, ICAM, and NF-κB levels and increased Nrf2 and HO-1 levels in the retina of rats fed (P < 0.05). CONCLUSIONS: Results from the present study suggest that MZ has protective effects on the retina and the ability to modulate oxidative stress of retina in rats fed an HFD by suppressing retinal lipid peroxidation and regulating growth and transcription factors.


Subject(s)
Antioxidants/pharmacology , Oxidative Stress/drug effects , Retina/drug effects , Zeaxanthins/pharmacology , Animals , Antioxidants/administration & dosage , Dietary Supplements , Male , Models, Animal , Rats , Rats, Sprague-Dawley , Stereoisomerism , Zeaxanthins/administration & dosage
15.
Nat Commun ; 6: 7102, 2015 May 21.
Article in English | MEDLINE | ID: mdl-25994086

ABSTRACT

Circulating carbohydrates are an essential energy source, perturbations in which are pathognomonic of various diseases, diabetes being the most prevalent. Yet many of the genes underlying diabetes and its characteristic hyperglycaemia remain elusive. Here we use physiological and genetic interrogations in D. melanogaster to uncover the 'glucome', the complete set of genes involved in glucose regulation in flies. Partial genomic screens of ∼1,000 genes yield ∼160 hyperglycaemia 'flyabetes' candidates that we classify using fat body- and muscle-specific knockdown and biochemical assays. The results highlight the minor glucose fraction as a physiological indicator of metabolism in Drosophila. The hits uncovered in our screen may have conserved functions in mammalian glucose homeostasis, as heterozygous and homozygous mutants of Ck1alpha in the murine adipose lineage, develop diabetes. Our findings demonstrate that glucose has a role in fly biology and that genetic screenings carried out in flies may increase our understanding of mammalian pathophysiology.


Subject(s)
Adipose Tissue/metabolism , Casein Kinase I/metabolism , Drosophila melanogaster/genetics , Glucose/metabolism , Hyperglycemia/genetics , Animals , Carbohydrate Metabolism , Casein Kinase I/genetics , Fat Body/metabolism , Female , Gene-Environment Interaction , Hemolymph/metabolism , Male , Metabolome , Mice , Muscles/enzymology , Mutation , Receptors, Cytoplasmic and Nuclear/metabolism , Transcription Factors/metabolism , Trehalose/metabolism
16.
Ecotoxicol Environ Saf ; 111: 206-14, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25450935

ABSTRACT

This study aims to determine the effect of glyphosate on the transcriptional and enzymatic activity of antioxidant metabolism enzymes of juvenile rainbow trout with short term (6, 12, 24, 48 and 96 h) and long term (21 days) exposures followed by a recovery treatment. This study also aims to determine the effects of glyphosate exposure on liver tissue damage and swimming performance due to short term (2.5, 5 and 10 mg/L) and long term (2.5 and 5 mg/L) exposures. Following pesticide administration, ten fish, each as a sample, were caught at 6th, 12th, 24th, 48th and 96th -h for the short term, and at 21st day for the long term exposure study. GPx activity was found to be significantly induced 12 h after the exposure to 2.5 mg/L of glyphosate as compared with the control group. A similar degree of induction was also observed for CAT activity but not for SOD. For long term exposure, except for the GPx activity after exposure to 5 mg/L of glyphosate, the activities of all other enzymes remained on a par with the control group. It was also observed that the levels of gene expression of these enzymes were not comparable with each other. It is assumed that these differences might result from the effect of glyphosate before translation and the possible reasons for this scenario are also discussed. The results of swimming performance are found to be consistent with responses of the antioxidant system, and they are attributed to the energy metabolism. The data are also supported with liver histopathology analysis.


Subject(s)
Chemical and Drug Induced Liver Injury/veterinary , Fish Diseases/chemically induced , Glycine/analogs & derivatives , Liver/pathology , Oncorhynchus mykiss/physiology , Pesticides/toxicity , Swimming , Water Pollutants, Chemical/toxicity , Animals , Catalase/metabolism , Chemical and Drug Induced Liver Injury/enzymology , Chemical and Drug Induced Liver Injury/pathology , Energy Metabolism/drug effects , Fish Diseases/enzymology , Fish Diseases/pathology , Glutathione Peroxidase/metabolism , Glutathione Reductase/metabolism , Glycine/toxicity , Liver/drug effects , Liver/enzymology , Metabolic Networks and Pathways/drug effects , Superoxide Dismutase/metabolism , Glyphosate
17.
BMC Med Genet ; 15: 74, 2014 Jul 01.
Article in English | MEDLINE | ID: mdl-24980720

ABSTRACT

BACKGROUND: Familial Mediterranean Fever (FMF), characterized by recurrent fever and inflammation of serous membranes, is an autosomal recessive disease caused by mutations in the Mediterranean fever (MEFV) gene. Around 296 mutations have been reported to date. METHODS: Two two-generation Turkish families with a total of four members diagnosed with FMF clinically were screened with DNA sequencing performed on exon 2 and exon 10 of the MEFV genes. Then, complete exome sequencing analysis of MEFV gene was done for four patients in whom novel mutation was detected. RESULTS: A novel single base Guanine (G) insertion mutation in the coding region of MEFV gene, named c.2330dupG (p.Gln778Serfs*4 or Q778SfsX4) resulting in a mutated Pyrin/Marenostrin protein was identified. CONCLUSIONS: This is the first report of a new mutation in exon 10 of the MEFV gene in two Turkish families. This novel pattern of insertion mutation may provide important information for further studies on FMF pathogenesis.


Subject(s)
Cytoskeletal Proteins/genetics , Familial Mediterranean Fever/genetics , Guanine/metabolism , Mutagenesis, Insertional , Adolescent , Child , Cytoskeletal Proteins/metabolism , Exons , Female , Humans , Male , Pedigree , Pyrin , Sequence Analysis, DNA , Turkey
18.
Multidiscip Respir Med ; 9(1): 17, 2014 Mar 19.
Article in English | MEDLINE | ID: mdl-24646632

ABSTRACT

BACKGROUND: Denim sandblasting may cause silicosis as a result of free crystalline silica inhalation. Its pathogenesis remains unclear, but autoimmunity may play a role in the development of silicosis. The present study aimed to investigate the relationships between human leukocyte antigen (HLA) and the severity and latency period of silicosis. METHODS: 48 silicotic patients in the Eastern part of Turkey were classified according to their latency period and disease severity. The distribution of HLAs according to disease severity and latency period was assessed. RESULTS: A23 (7.5%), B49 (7.5%), and B51 (25%) were more common in the mild group than in the severe group, and B55 (8.9%) and DR4 (17.9%) were more common in the severe group than in the mild one. Only B51 was significantly more common in the mild group than in the severe one (25%, n = 10 vs. 7.1%, n = 4; p = 0.016). CONCLUSIONS: This study suggests that HLA antigens may play a particular role in the severity of silica-induced lung disease, but there was no association between HLA and progression time of the disease.

19.
Gynecol Obstet Invest ; 76(2): 100-6, 2013.
Article in English | MEDLINE | ID: mdl-23886769

ABSTRACT

BACKGROUND: The aim of this study was to investigate the protective effects of coenzyme Q10 (CoQ10) on ovarian ischemia/reperfusion injury in an experimental rat adnexal torsion model. METHODS: 48 female adult Wistar albino rats, weighing 220-250 g, were randomly equally divided into six groups (n = 8): sham, torsion, detorsion, sham+CoQ10, torsion+CoQ10, and detorsion+CoQ10 groups. Bilateral adnexal torsion was performed for 3 h in all groups, except the sham and sham+CoQ10 groups. Bilateral adnexal detorsion was performed on the detorsion and detorsion+CoQ10 groups. CoQ10 was injected intraperitoneally 30 min before the sham operation, torsion, and detorsion. RESULTS: The torsion and detorsion groups had significantly higher histologic evaluation scores, as well as higher MDA levels, TOS values, and oxidative stress index values than the sham group. A strong correlation between total histologic evaluation scores for ischemia/reperfusion injury and the oxidative stress index was found. The mean oxidant marker levels and histopathologic scores for the ovarian tissue significantly decreased after using CoQ10, which is a potent antioxidant. CONCLUSIONS: Conservative surgery (detorsion) was found to provide inadequate protection to ovarian tissue. The results of this study suggest that CoQ10 could be useful for the protection of ovarian tissue before conservative surgery.


Subject(s)
Ovary/blood supply , Oxidative Stress , Reperfusion Injury/prevention & control , Torsion Abnormality/surgery , Ubiquinone/analogs & derivatives , Animals , Aryldialkylphosphatase/metabolism , Female , Malondialdehyde/metabolism , Rats , Rats, Wistar , Reperfusion Injury/etiology , Reperfusion Injury/pathology , Torsion Abnormality/complications , Ubiquinone/therapeutic use
20.
Int J Surg ; 11(9): 967-70, 2013.
Article in English | MEDLINE | ID: mdl-23796447

ABSTRACT

BACKGROUND: To evaluate the protective effects of curcumin in experimental ischemia and ischemia/reperfusion (I/R) injury of rat ovaries. METHODS: Forty-eight female adult Wistar Albino rats were used. Rats divided into six groups and designed: Sham, Torsion, Detorsion, Sham + Curcumin, Torsion + Curcumin, and Detorsion + Curcumin. Except for the Sham and Sham + Curcumin group, all groups were performed to bilateral adnexal torsion for 3 h. Bilateral adnexal detorsion was implemented in the Detorsion and Detorsion + Curcumin groups. The injection of curcumin was intraperitoneally achieved 30 min before the sham, torsion and detorsion. RESULTS: Total oxidant status levels (TOS), oxidative stress index (OSI) and histologic scores values of ovarian tissue were higher in the torsion and detorsion groups than the sham group (p < 0.05). There was a strong correlation between the total histologic scores of I/R injury and the OSI (r = 0.809, p < 0.001). By the use of curcumin, a significant decrease was established in the mean levels of oxidant markers and histopathologic scores of the ovarian tissues. CONCLUSIONS: Administration of curcumin is effective in reversing tissue damage induced by ischemia-reperfusion injury in ovarian torsion.


Subject(s)
Antioxidants/pharmacology , Curcumin/pharmacology , Ovarian Diseases/drug therapy , Ovary/blood supply , Ovary/drug effects , Reperfusion Injury/drug therapy , Animals , Female , Oxidative Stress/drug effects , Random Allocation , Rats , Rats, Wistar
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