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The present article is focused on developing and validating an efficient, credible, minimally invasive technique based on spectral signatures of blood samples of women with recurrent miscarriage vs. those of healthy individuals who were followed in the Department of Obstetrics and Gynecology for 2 years. For this purpose, blood samples from a total of 120 participants, including healthy women (n=60) and women with diagnosed recurrent miscarriage (n=60), were obtained. The lipid profile (high-density lipoprotein, low-density lipoprotein, triglyceride, and total cholesterol levels) and lipid peroxidation (malondialdehyde and glutathione levels) were evaluated with a Beckman Coulter analyzer system for chemical analysis. Biomolecular structure and composition were determined using an attenuated total reflectance sampling methodology with Fourier transform infrared spectroscopy alongside machine learning technology to advance toward clinical translation. Here, we developed and validated instrumentation for the analysis of recurrent miscarriage patient serum that was able to differentiate recurrent miscarriage and control patients with an accuracy of 100% using a Fourier transform infrared region corresponding to lipids. We found that predictors of lipid profile abnormalities in maternal serum could significantly improve this patient pathway. The study also presents preliminary results from the first prospective clinical validation study of its kind. WOS:000867589600001 Q2

Amaç: Multipl Skleroz, merkezi sinir sisteminde inflamatuar infiltrasyonlarla ilerleyen otoimmün demiyelinizan bir hastalıktır. JAK-STAT sinyal yolunun düzensizliği, otoimmün ensefalomiyelit ile indüklenmiş Multipl Skleroz modellerinin patogenezinde önemli bir rol oynar. Bu çalışmanın amacı, sarı kantaron ve çuha çiçeği yağlarının tüketiminin, JAK-STAT sinyal yolu üzerindeki terapötik etkilerini ortaya çıkarmaktır.Gereç ve Yöntemler: Çalışmamızda 42 adet dokuz haftalık C57bl/6 J fareler kullanıldı. Fareler, Multipl Skleroz (MS) (n=32) ve kontrol grubu (n=10) olmak üzere iki ana gruba ayrıldıktan sonra MS grubundaki tüm farelere deneysel otoimmün ensefalomiyelit yöntemi ile Multipl Skleroz hastalığı oluşturuldu. Multipl Skleroz grubu kendi içinde MS (n=7), MS + Çuha çiçeği (n=10) ve MS + Sarı Kantaron (n=15) olacak şekilde üç gruba ayrıldı. Tedavi grupları, 6 hafta boyunca sarı kantaron (20 g/kg) ve çuha çiçeği (20 g/kg) yağları içeren özel üretim yemler ile beslendi. Multipl Skleroz indüksiyonundan iki hafta sonra, hastalığın klinik belirtileri her fare için günlük olarak puanlandı. Çalışmamızın sonunda beyin dokusu örneklerini elde etmek için tüm gruplardaki fareler sakrifiye edildi. Beyin doku homojenatlarında Western Blot yöntemi ile JAK2, p-JAK2, STAT1 ve p-STAT1 protein ekspresyon seviyeleri ölçüldü.Bulgular: Çalışmamızda Multipl Skleroz hastalığı patogenezi ile ilişkili JAK/STAT yolağındaki p-JAK2, JAK2, p-STAT1 ve STAT1 ekspresyon düzeylerinin MS grubunda kontrollere göre anlamlı olarak arttığını, sarı kantaron ve çuha çiçeği yağı ile beslenen gruplarda ise anlamlı olarak azaldığını gösterdik (p

Combined use of a chemotherapeutic agent and an autophagy inhibitor is a novel cancer treatment strategy. We investigated the effects of chloroquine (CQ) on lung pathology caused by both solid Ehrlich ascites carcinoma (EAC) and doxorubicin (DXR). A control group and eight experimental groups of adult female mice were inoculated subcutaneously with 2.5 × 106 EAC cells. DXR (1.5 mg/kg and 3 mg/kg) and CQ (25 mg/kg and 50 mg/kg) alone or in combination were injected intraperitoneally on days 2, 7 and 12 following inoculation with EAC cells. Lung tissue samples were examined using immunohistochemistry (IHC) for endothelial (eNOS), inducible nitric oxide synthase (iNOS) and neutrophil gelatinase-associated lipocalin (NGAL). Serum catalase (CAT), glutathione peroxidase (GPx), superoxide dismutase (SOD) and malondialdehyde (MDA) levels were measured using ELISA. We found decreased levels of iNOS and eNOS in the groups that received 1.5 mg/kg DXR alone and in combination with 25 mg/kg and 50 mg/kg CQ. Combined administration of DXR and CQ partially prevented disruption of alveolar structure. Levels of antioxidant enzymes and MDA were lower in all treated groups; the greatest reduction was observed in mice that received the combination of 25 mg/kg CQ + 1.5 mg/kg DXR. Levels of NGAL were elevated in all treated groups. We found that CQ ameliorated both EAC and DOX induced lung pathology in female mice with solid EAC by reducing oxidative stress. 35240890

The protective effects of thymoquinone on learning and memory abilities and on hippocampal oxidative stress in rats exposed to 900 MHz electromagnetic field radiation at s strength of 6.0 ± 0.5 V/m for 1 h on each of 15 days was studied. Thymoquinone-treatment (10 mg/kg/day) of radiation-exposed rats resulted in better performance than that of radiation-exposed rats not receiving thymoquinone. Electromagnetic field-exposure led to increased hippocampal superoxide dismutase, glutathione peroxidase, and malondialdehyde levels and to lowered brain-derived neurotrophic factor level; thymoquinone treatment ameliorated all four parameters. Also, in the electromagnetic field-exposed group, N-methyl-D-aspartate receptor expression decreased, and gamma-aminobutyric-acid alpha receptor expression increased, which was reversed by thymoquinone treatment. In conclusion, treatment with the thymoquinone ameliorated the impact of the exposure to EMF and provided a hint on the mechanism involving oxidative stress. © 2022 Informa UK Limited, trading as Taylor & Francis Group.

Candida boidinii NAD+-dependent formate dehydrogenase (CbFDH) has gained significant attention for its potential applications in the production of biofuels and various industrial chemicals from inorganic carbon dioxide. In this study, we present an atomic X-ray crystal structure of the apo CbFDH to 1.4 Å resolution determined at cryogenic temperature at the Turkish Light Source, “Turkish DeLight”. This structure offers a comprehensive view of the apo enzyme's dynamics, filling the gaps in our understanding from previous studies. Also, comparison of our high-resolution apo and previously available holo enzyme structures reveals major conformational changes of this dynamic enzyme in the absence and presence of the coenzyme and substrate/inhibitor complexes. Collectively all these information may provide invaluable insights into future protein engineering efforts that could enhance enzymatic activity and stability, potentially increasing its efficiency and effectiveness of CbFDH in industrial processes.

Candida boidiniiNAD+-dependent formate dehydrogenase (CbFDH) has gained significant attention for its potential applications in the production of biofuels and various industrial chemicals from inorganic carbon dioxide. In this study, we present an atomic X-ray crystal structure of the apoCbFDH to 1.4 Å resolution determined at cryogenic temperature at the Turkish Light Source,“Turkish DeLight”. This structure offers a comprehensive view of the apo enzyme’s dynamics, filling the gaps in our understanding from previous studies. Also, comparison of our high-resolution apo and previously available holo enzyme structures reveals major conformational changes of this dynamic enzyme in the absence and presence of the coenzyme and substrate/inhibitor complexes. Collectively all these information may provide invaluable insights into future protein engineering efforts that could enhance enzymatic activity and stability, potentially increasing its efficiency and effectiveness ofCbFDH in industrial processes.

Background:Aside from its pervasiveness, whereby it affects as much as 20% of the world's population, depression continues to be one of the most crucial psychiatric problems due to the loss of power it causes by disrupting daily life functioning, containing economic consequences, and having a high suicidal tendency. Major depression (MD) is a systemic and multifactorial disorder involving complex interactions between genetic predisposition and disturbances of various molecular pathways.Objectives:In our current study, we aimed to identify the proteins obtained from serum samples that change during depression with the MD model.Methods:The MD model was applied through the forced swim test in rats. 14 Winstar Albino male rats were divided into two equal groups as follows: depression and control groups. Serum samples were separated by chromatographic methods and then compared with two-dimensional (2D) electrophoresis.Results:A total of 9 potential diagnostic protein sequences were identified, which were distinguished with computer software. During the last phase of the study, the Matrix-Assisted Laser Desorption/ Ionization – Time of Flight (MALDI-TOF) analysis, the previous expression sequences identified among the groups were determined and classified. By comparing protein expressions, it was concluded that 9 different points could be used together as a potential biomarker.Conclusion:Results can help us identify a new diagnostic system that can be used to diagnose MD.

Background: Corrosive esophageal burns have high morbidity and mortality. The effective treatment is controversial. In our study, we aimed to examine the effects of resveratrol (RSV) and platelet rich plasma (PRP) on healing in the corrosive esophagitis model in rats. Material and methods: A total of 24 rats were randomly divided into 4 groups each as esophagitis, control, PRP and RSV groups. No treatment was administered to the control group. The esophagitis model was induced in the esophagitis and treatment groups. The esophagitis group was not treated. PRP group was treated with PRP, RSV group was treated with RSV. Pathological and biochemical examinations were performed from distal esophagitis. Results: The highest tissue IL-1, IL-6, and TNF-α levels were observed in the esophagitis group. The lowest tissue IL-1, IL-6, and TNF-α levels were noted in the control group. The highest tissue TAS levels were observed in the control group. The lowest tissue TAS levels were noted in the esophagitis group. The other groups had significantly lower mean tissue TOS and OSI levels than the esophagitis group (P

Background/Aim: Tacrolimus is a commonly used agent for immunosuppression in organ transplantation with known nephrotoxic effects. We think that kidney-sparing therapy should be added to current treatment protocols. We aimed to observe the protective effect of resveratrol (RSV) against the adverse effects of tacrolimus (TAC) on rat kidneys. Methods: Twenty-four rats were randomly divided into the following three groups of eight rats each: Control, TAC, and RSV. The control group was not treated in any way. Tacrolimus was administered to the TAC group. In addition to tacrolimus use, resveratrol was administered to the RSV group. At the end of the experiment, one kidney was used for histopathological examination and the other, for biochemical examination. Results were analyzed statistically.Results: IL-1β, IL-6, TNF-Alpha levels in the control group were significantly lower than those in TAC and RSV groups (IL-1; P

In this study, we investigated the protective effects of angiotensin IV (Mg IV) on cognitive function in streptozotocin (STZ)-induced diabetic rats. Male Wistar albino rats, were randomly divided into four groups; control (C), diabetes (Dia, 60 mg/kg, STZ, i.p.), Mg IV (5 mu g/kg, s.c.) and Dia+Ang W. The passive avoidance and Morris water maze (MWM) tests were used to evaluate learning and memory performance. Behavioral tests were carried out between 21 and 30 days after the initial Ang IV injection. Hippocampi were dissected and retained for biochemical and Western blot analysis. The Dia group exhibited the poorest behavioral results, while the Dia+Ang W group performed highest on the MWM task. Superoxide dismutase, glutathione peroxidase, and malondialdehyde levels increased significantly in the Dia group compared to Dia+Ang IV. Brain-derived neurotrophic factor (BDNF) and N-methyl-D-aspartate levels were significantly elevated, while levels of GABA(A) significantly decreased, in the Dia+Ang IV group compared to the Dia group. These findings suggest that peripheral administration of Ang IV ameliorated spatial memory in diabetic rats by decreasing hippocampal oxidative stress and BDNF levels. Research Fund of Istanbul University Cerrahpasa Medical Faculty [33339] This work was supported by the Research Fund of Istanbul University Cerrahpasa Medical Faculty (grant number: 33339).

NAD-dependent formate dehydrogenase (FDH) enzymes are frequently used in industrial and scientific applications. FDH is a reversible enzyme that reduces the NAD molecule to NADH and produces CO2 by oxidation of the formate ion, whereas it causes CO2 reduction in the reverse reaction. Some transition metal elements - Fe3+, Mo6+ and W6 + - can be found in the FDH structure of anaerobic and archaeal microorganisms, and these enzymes require cations and other redox-active cofactors for their FDH activity. While NAD-dependent FDHs do not necessarily require any metal cations, the presence of various metal cations can still affect FDH activities. To study the effect of 11 different metal ions, NAD-dependent FDH enzymes from ten different microorganisms were tested: Ancylobacter aquaticus (AaFDH), Candida boidinii (CboFDH), Candida methylica (CmFDH), Ceriporiopsis subvermispora (CsFDH), Chaetomium thermophilum (CtFDH), Moraxella sp. (MsFDH), Myceliophthora thermophila (MtFDH), Paracoccus sp. (PsFDH), Saccharomyces cerevisiae (ScFDH) and Thiobacillus sp. (TsFDH). It was found that metal ions (mainly Cu2+ and Zn2+) could have quite strong inhibition effects on several enzymes in the forward reaction, whereas several cations (Li+, Mg2+, Mn2+, Fe3+ and W6+) could increase the forward reaction of two FDHs. The highest activity increase (1.97 fold) was caused by Fe3+ in AaFDH. The effect on the reverse reaction was minimal. The modelled structures of ten FDHs showed that the active site is formed by 15 highly conserved amino acid residues spatially settling around the formate binding site in a conserved way. However, the residue differences at some of the sites close to the substrate do not explain the activity differences. The active site space is very tight, excluding water molecules, as observed in earlier studies. Structural examination indicated that smaller metal ions might be spaced close to the active site to affect the reaction. Metal ion size showed partial correlation to the effect on inhibition or activation. Affinity of the substrate may also affect the sensitivity to the metal's effect. In addition, amino acid differences on the protein surface may also be important for the metal ion effect. WOS:000576745100001 33043425 Q4

The NAD+-dependent formate dehydrogenase (FDH; EC 1.2.1.2) from Candida boidinii (CboFDH) has been extensively used in NAD(H)-dependent industrial biocatalysis as well as in the production of renewable fuels and chemicals from carbon dioxide. In the present work, the effect of amino acid residues Phe285, Gln287, and His311 on structural stability was investigated by site-directed mutagenesis. The wild-type and mutant enzymes (Gln287Glu, His311Gln, and Phe285Thr/His311Gln) were cloned and expressed in Escherichia coli. Circular dichroism (CD) spectroscopy was used to determine the effect of each mutation on thermostability. The results showed the decisive roles of Phe285, Gln287, and His311 on enhancing the enzyme’s thermostability. The melting temperatures for the wild-type and the mutant enzymes Gln287Glu, His311Gln, and Phe285Thr/His311Gln were 64, 70, 77, and 73 °C, respectively. The effects of pH and temperature on catalytic activity of the wild-type and mutant enzymes were also investigated. Interestingly, the mutant enzyme His311Gln exhibits a large shift of pH optimum at the basic pH range (1 pH unit) and substantial increase of the optimum temperature (25 °C). The present work supports the multifunctional role of the conserved residues Phe285, Gln287, and His311 and further underlines their pivotal roles as targets in protein engineering studies. WOS:000572586600001 32974869 Q3

Amaç: Işkın bitkisi (Rheum ribes L.) Çin, Hindistan, İran ve Türkiye’de yabani olarak yetişmekte olup birçok tıbbi amaç için kullanılmaktadır. Bu çalışmanın amacı ışkın bitkisinin kök, gövde ve kabuklarının etanol ekstraktlarının malign melanoma hücrelerine karşı anti-kanser etkinliğini araştırmaktır. Gereç ve Yöntem: Bitkinin oda sıcaklığında kurutulan kök, gövde ve kabuk kısımları mikser ile toz haline getirilip %50 etanol ile 24 saat inkübe edildi. Organik faz rotary evaporatörde uçurulup, su fazı liyofilizatörde ayrıldıktan sonra elde edilen ekstraktlarda; öncelikle total fenol ve total flavanoid içerik düzeyi ile total antioksidan kapasite fotometrik yöntemlerle ölçüldü. Daha sonra kültürize edilen malign melanoma hücreleri (B16F10) bu ekstrelerin farklı konsantrasyonlarında 24 saat inkübe edildi. İnkübasyondan sonra sitotoksisite düzeyi; kolorometrik MTT [3-(4,5-diMetilTiyazol-2-il)-2,5-difenil Tetrazolyum bromür] metodu ile, apoptoz düzeyi ise; Akridin Oranj-Etidyum Bromit (AO-EB) ikili boyama yöntemi ile tespit edildi. Bulgular: Hem sitotoksisite hemde apoptoz sonuçları incelediğinde aynı konsantrasyonlarda en yüksek sitotoksik (%87,57±4,3) ve apoptotik (59,76±3,57) etkinin kök ekstreleri ile sağlandığı görüldü (p

In this study, we evaluated the value of the uterocervical angle (UCA), myometrial thickness (MT), sICAM-1, sVCAM-1, soluble E-selectin (sE-selectin) and pentraxin 3 (PTX3) levels in women with threatened preterm labour (TPL) in predicting spontaneous preterm birth (sPTB) within 14 days in symptomatic women with cervical length (CL) measurements between 10 and 25 mm. Forty-six patients diagnosed with TPL, 47 healthy pregnant women were evaluated in a case-control study. sE-selectin (AUC = 0.744, p = .007) and PTX3 (AUC = 0.711, p = .019) were found to be effective in predicting preterm delivery within 14 days. In conclusion, maternal sE-selectin and PTX3 levels may be helpful in identifying pregnancies that will deliver within 14 days in symptomatic women with CL measurements between 10 and 25 mm. However, maternal sICAM-1 and sVCAM-1 levels, MT and UCA are not effective in the prediction of sPTB in TPL pregnancies. Impact StatementWhat is already known on this subject? Aetiology of spontaneous preterm birth (sPTB) is unclear and believed to be multifactorial, infection, inflammation, vascular endothelial dysfunction and uteroplacental ischaemia are all considered to be related to preterm delivery syndrome. Transvaginal cervical length (CL) measurement is a good indicator of increased risk of sPTB. Inflammation is accepted to have a central role in the process of labour.What do the results of this study add? soluble E-selectin (sE-selectin) and pentraxin 3 (PTX3) levels may be helpful in identifying pregnancies that will deliver within 14 days in symptomatic women with CL measurements between 10 and 25 mm.What are the implications of these findings for clinical practice and/or further research? This study will help understand the important role of the inflammatory process in predicting spontaneous preterm birth. 35603552

No Abstract Available 35240718

Cholangiocarcinoma (CCA) is a type of cancer, which 5-year survival is lower than 20 %, and which is detected mostly in advanced stage of the disease. Unfortunately, there are no diagnostic tools, which could show changes in the body indicating the development of the disease. Therefore, in this study, we investigate Raman spectroscopy as a promising analytical tool in medical diagnostics and as a method, which would allow to distinguish between healthy patients and patients suffering from cholangiocarcinoma. The obtained Raman spectra showed, that lower intensities of peaks corresponding to amino acids and proteins, as well as higher intensities of peaks originating from lipids vibrations were observed in healthy individuals in comparison with cancer patients. Moreover, Partial Last Square (PLS), Principal Component Analysis (PCA) and Hierarchical Component Analysis (HCA) of Raman spectra indicate that the ranges between 800 cm-1 and 1800 cm-1, 3477 cm-1 -3322 cm-1 and 1394 cm-1 -1297 cm-1 allow to distinguish cancer patients from healthy ones. The obtained results showed, that Raman spectroscopy is a good candidate, to become in future one of the diagnostic tools of Cholangiocarcinoma.

Herein, we show differences in blood serum of asymptomatic and symptomatic pregnant women infected with COVID-19 and correlate them with laboratory indexes, ATR FTIR and multivariate machine learning methods. We collected the sera of COVID-19 diagnosed pregnant women, in the second trimester (n = 12), third-trimester (n = 7), and second-trimester with severe symptoms (n = 7) compared to the healthy pregnant (n = 11) women, which makes a total of 37 participants. To assign the accuracy of FTIR spectra regions where peak shifts occurred, the Random Forest algorithm, traditional C5.0 single decision tree algorithm and deep neural network approach were used. We verified the correspondence between the FTIR results and the laboratory indexes such as: the count of peripheral blood cells, biochemical parameters, and coagulation indicators of pregnant women. CH2 scissoring, amide II, amide I vibrations could be used to differentiate the groups. The accuracy calculated by machine learning methods was higher than 90%. We also developed a method based on the dynamics of the absorbance spectra allowing to determine the differences between the spectra of healthy and COVID-19 patients. Laboratory indexes of biochemical parameters associated with COVID-19 validate changes in the total amount of proteins, albumin and lipase., Graphical abstract Image 1

Polycystic ovarian syndrome (PCOS) is a disease, which causes infertility in women. The factors for the development of the disease are still not well understood and diagnostic methods need to be improved. Therefore, in this study, Raman spectroscopy as a potential diagnostic tool, was investigated and spectra of blood serum were collected from PCOS and healthy women. The obtained spectra showed distinct changes in intensities as well as shift of peaks for the blood serum collected from PCOS compared to healthy individuals. Partial Last Square (PLS) analysis and Principal Component Analysis (PCA) allowed to determine that Raman shifts of amides (1500 – 1700 cm−1) and CH2, CH3 lipid groups (2700 – 3000 cm−1), could be thus used as potential PCOS markers. Furthermore, the Pearson correlation test showed a strong correlation between hormones (lutropin (LH), prolactin (PRL), follicle-stimulating (FSH), dehydroepiandrosterone (DHEAS), thyroid-stimulating (TSH), Estradiol) and lipids, as well as between hormones and protein functional groups in PCOS women, compared to the control. These results show, that the lipid and protein balance could be potentially applied as a helpful PCOS marker in Raman spectra. © 2022 Elsevier B.V. 2-s2.0-85124979605

Objective: Some studies have shown that keto amino acids (KA) reduce proteinuria and improve renal function as well as nutritional status in patients with diabetic nephropathy. We aimed to compare the pathologic findings of kidneys of rats that were given protein-restricted diets enriched with KA with those of rats given protein-restricted diet alone.

Objective: Sepsis leads to conditions such as inflammatory and anti-inflammatory process, circulatory abnormalities, cellular and humoral reactions. Endotoxin-induced oxidative stress causes injury in the liver. The aim of this study was to evaluate the effects of a radical scavenger Tempol in lipopolysaccharide (LPS)-induced liver injury in rats. Materials and Methods: Male Wistar rats were divided into four groups: Control, LPS (15 mg/kg), LPS + Tempol group (100 mg/kg Tempol, three hours after LPS administration) and Tempol (100 mg/kg). Blood glucose and body temperature were measured during the experiment. Superoxide dismutase (SOD), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and C-reactive protein (CRP) levels were measured in plasma or liver tissue. Furthermore, histopathological changes and myeloperoxidase-stained leukocytes infiltration were assessed in liver tissue. Results: LPS caused tissue damage and leukocytes infiltration, increased AST, ALT and CRP levels, and decreased body temperature, blood glucose and SOD levels. Tempol reduced AST and ALT levels and increased SOD levels. Tempol did not prevent tissue damage, leukocytes infiltration and increment of CRP levels. There were no changes in body temperature and blood glucose levels. Conclusion: The present study suggests that tempol may have antioxidant properties in LPS-induced liver injury. These results may contribute to a better understanding of the role of tempol and basic mechanisms of underlying oxidative stressrelated liver injury for further investigations.

Background Psoriasis is a chronic dermatologic disease affecting 2% of the general population. Tumour necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) is a newly defined member of the TNF family. Increased serum levels of TWEAK were reported in inflammatory diseases. The relationship between serum TWEAK levels and severity of psoriasis has not yet been proven. Our aim was to clarify the change in serum TWEAK levels in response to conventional and anti-TNF treatments. Material and methods Blood samples were collected from 103 moderate or severe chronic plaque psoriasis patients with or without arthritis who were referred to the Department of Dermatology, Istanbul University Cerrahpasa Medical Faculty between the years 2016 and 2018. Psoriasis Area and Severity Index (PASI) scores were calculated, and serum TWEAK levels were assessed with TWEAK ELISA kit. SPSS 20 was used for statistics. Results Serum TWEAK levels increased significantly and PASI scores decreased significantly after both conventional and anti-TNF treatments, but the two variables were not correlated. There was no significant difference between conventional and anti-TNF treatments, between patients with or without comorbid arthritis and between genders. Conclusions Lower serum TWEAK levels induce psoriasis and higher levels of TWEAK are observed after treatment. It is important to determine a threshold value. Such a cutoff value of serum TWEAK levels could not be calculated in our study similar to previous studies. If its serum levels were to be standardized in further studies, TWEAK can be used as a follow-up marker in psoriasis patients with the PASI score.

Electrical stimulation is proposed to exert an antimicrobial effect according to studies performed using bacterial and cell cultures. Therefore, we investigated the effects of electrification on inflammation in septic rats. Twenty-eight male Wistar albino rats were divided into 4 groups: healthy control (C), electrified healthy (E), sepsis (S), and electrified sepsis (SE) groups. Staphylococcus aureus (1 x 109 colonies) in 1 ml of medium was intraperitoneally injected into rats to produce a sepsis model. The rats in the E and SE groups were exposed to a low direct electrical signal (300 Hz and 2.5 volts) for 40 min and 1 and 6 h after bacterial infection. Immediately after the second electrical signal application, blood and tissue samples of the heart, lung, and liver were collected. An antibacterial effect of a low direct electrical signal was observed in the blood of rats. The effects of electrical signals on ameliorating changes in the histological structure of tissues, blood pH, gases, viscosity and cell count, activities of some important enzymes, oxidative stress parameters, inflammation and tissue apoptosis were observed in the SE group compared to the S group. Low direct electrical signal application exerts antibacterial, antioxidant, anti-inflammatory and antiapoptotic effects on septic rats due to the induction of electrolysis in body fluids without producing any tissue damage.

In this study, we investigated the protective effects of angiotensin IV (Ang IV) on cognitive function in streptozotocin (STZ)‑induced diabetic rats. Male Wistar albino rats, were randomly divided into four groups; control (C), diabetes (Dia, 60 mg/kg, STZ, i.p.), Ang IV (5 μg/kg, s.c.) and Dia+Ang IV. The passive avoidance and Morris water maze (MWM) tests were used to evaluate learning and memory performance. Behavioral tests were carried out between 21 and 30 days after the initial Ang IV injection. Hippocampi were dissected and retained for biochemical and Western blot analysis. The Dia group exhibited the poorest behavioral results, while the Dia+Ang IV group performed highest on the MWM task. Superoxide dismutase, glutathione peroxidase, and malondialdehyde levels increased significantly in the Dia group compared to Dia+Ang IV. Brain‑derived neurotrophic factor (BDNF) and N‑methyl‑D‑aspartate levels were significantly elevated, while levels of GABAA significantly decreased, in the Dia+Ang IV group compared to the Dia group. These findings suggest that peripheral administration of Ang IV ameliorated spatial memory in diabetic rats by decreasing hippocampal oxidative stress and BDNF levels.

Objective To investigate the blood levels of adipokines in obese patients with endometrial cancer who have and have not undergone omentectomy. Methods Between September 2017 and September 2019, the study recruited 54 patients with endometrial cancer. Measurements were taken of blood levels of human leptin, perilipin-1, adiponectin, adipolin, resistin, visfatin, and estrone preoperatively and postoperatively before adjuvant therapy or at the end of one month. The serum samples were separated by centrifugation for 10 mins at 3,000 revolutions/min, then stored at −80 °C until assay. Results In this prospective study, a total of 54 endometrial cancer patients were analyzed in two separate groups according to the omentectomy status. Comprehensive staging surgery with omentectomy and without omentectomy was performed in 26 patients and 28 patients, respectively. The age, body mass index, body fat index, waist circumference, and skin thickness values of the patients with and without omentectomy were found to be similar. No statistically significant difference was determined between the patients with and without omentectomy in respect of the blood level of the adipokines measured preoperatively. A strong statistically significant correlation was determined between the pre and postoperative levels of Human Leptin (p = 0.002), perilipin-1(p = 0.001), adipolin (p < 0.001), adiponectin (p < 0.001), resistin (p = 0.001), visfatin (p < 0.001), and estrone (p = 0.004) (r = −0.43, −0.47, 0.75, 0.84, −0.47, - 0.58, −0.41, respectively) Conclusions Omentectomy affected the postoperative blood levels of adipokines in obese patients with endometrial cancer. As omentectomy may have some positive effects on metabolism in these patients, it may be considered during endometrial cancer surgery due to the possible positive metabolic effects. 2-s2.0-85132220540

Endometriomas are typically an advanced form of endometriosis that leads to the formation of scar tissue, adhesions, and an inflammatory reaction. There is no certain serum marker for the diagnosis of endometriosis. This study aims to research the correlation between the amount of peaks corresponding to proteins and lipids with the volume of endometrioma and determine the chemical structure of blood serum collected from women suffering from endometriosis patients with endometrioma and healthy subjects using Fourier Transform Infrared (FTIR) spectroscopy. FTIR spectroscopy is used as a non-invasive diagnostic technique for the discrimination of endometriosis women with endometrioma and control blood sera. The FTIR spectra of 100 serum samples acquired from 50 patients and 50 healthy individuals were used for this study. For this purpose, multivariate analyses such as Principal Component Analysis (PCA), Partial Last Square analysis (PLS) with Variables Importance in Projection (VIP), and probability models, were performed. Our results showed that FTIR range 1500 cm-1 and 1700 cm-1 and around 2700 cm-1 - 3000 cm-1, regions may be used for the diagnosis of endometriosis. Also, we find that proteins and lipids fraction increase with the volume of endometrioma. Moreover, PLS and VIP analysis suggested that lipids could be helpful in the diagnosis of endometriosis women with endometrioma. WOS:000701842600018 34371315 Q1

Catestatin can inhibit catecholamine release from chromaffin cells and adrenergic neurons. Catestatin can also have a strong vasodilator effect. This may be useful in understanding the pathophysiology of preeclampsia and its treatment. In this study, we investigated the serum catestatin levels in pregnant women with and without preeclampsia. Fifty consecutive women with mild preeclampsia, 50 consecutive women with severe preeclampsia, and 100 consecutive pregnant women with a gestational age-matched (±1 week) uncomplicated pregnancy were evaluated in a cross-sectional study. Mean serum catestatin was significantly increased in the preeclampsia group compared to the control group (290.7 ± 95.5 pg/mL vs. 182.8 ± 72.0 pg/mL). Mean serum catestatin was comparable in mild and severe preeclampsia groups (282.7 ± 97.9 pg/mL vs. 298.7 ± 93.4 pg/mL, p = .431). Serum catestatin levels had positive correlations with systolic and diastolic blood pressure, urea, uric acid, and creatinine. In conclusion, serum catestatin levels are increased in preeclamptic pregnancies compared to gestational age-matched controls.IMPACT STATEMENTWhat is already known on this subject? The role of autonomic nervous system dysregulation in the pathophysiology of preeclampsia is known. The most obvious part of this dysregulation is the sympathetic nervous system activation. The adrenal medulla is one of the locations of the sympathetic nervous system in the body.What do the results of this study add? Serum catestatin levels were found to be correlated with clinical and laboratory data of preeclampsia. This highlights the importance of chromaffin cell secretions in the adrenal medulla in preeclampsia.What are the implications of these findings for clinical practice and/or further research? This study will help understand the role of the adrenal medulla in the autonomic nervous system dysregulation in preeclampsia. Also, control of serum catestatin levels may support the treatment of hypertension in preeclampsia. WOS:000646463100001 33938370 Q4

Polycystic ovary syndrome (PCOS) is a common endocrinopathy associated with metabolic disturbances.Both in the development and improvement of the disease, the structure of phospholipids and proteinsin the blood serum plays important role in the treatment of these disease. Herein, to investigate themetabolic process and the variations of biomacromolecules and lipids between young PCOS women andhealthy subjects, biochemistry and Fourier Transform InfraRed spectroscopy (FTIR) methods, were used.Moreover, partial least squares regression (PLS) and Principal component analysis (PCA) to researchdifferentiation of biomacromolecules, were performed. We obtained blood serum of of 100 individ-uals including 57 with PCOS and 43 healthy controls. The biochemical blood profile of PCOS womenwas presented by spectroscopic measurements, which is an analytical technique, as well as by labora-tory indexes and oxidative stress status measurements. There was a significant structural differentiationbetween studied groups in the number of functional groups and biomolecules differentiation dependingon the protein expression and oxidative stress status. Hence, FTIR spectroscopy and oxidative load can beeffectively utilized as tools for classifying quantitative and qualitative changes of biomolecules in PCOSsamples. PCOS samples did not correlate with luteinizing hormone (LH) level and proteins but had anegative correlation between carbohydrates and fatty acids, compared with control group. WOS:000686903700020 34274594 Q2

Background: Psoriasis is a chronic inflammatory disease associated with obesity and metabolic syndrome. Adipokines are thought to be a link between psoriasis and obesity. Leptin, adiponectin, and omentin are bioactive adipokines thought to play a role in both metabolic comorbidities and inflammation. Anti-tumour necrosis factor alfa (anti-TNF-α) agents are effective for psoriasis treatment, although significant weight gain has been reported during anti-TNF-α therapy. The interleukin 12/23 (IL 12/23) inhibitor ustekinumab is also effective for psoriasis treatment. We compared the effects of three anti-TNF-α drugs and an IL-12/23 inhibitor on adipokines and weight gain during treatment. Patients and methods: This prospective study included 80 patients (37 women, 43 men) with moderate to severe plaque psoriasis whose age and weight were matched. The patients were divided into four equal groups: etanercept, infliximab, adalimumab, and ustekinumab treatment groups. Psoriasis Area Severity Index (PASI) score, body weight (muscle and fat compartments), and leptin, adiponectin, and omentin levels were evaluated at baseline and weeks 4, 12, 24, and 48 of treatment. Results: There were no differences between drug groups in terms of weight parameters or biochemical parameters at baseline. At the end of 48 weeks, there was significant weight gain in the adalimumab group. Patients who received infliximab showed significant weight gain by week 12, but in the following weeks they returned to their initial weight. Body weight reached a maximum level by week 12 in patients using etanercept, but they lost weight in the following weeks and finished the study below their initial weight. Patients using ustekinumab did not demonstrate significant weight change during the 48 weeks except at week 12. At the end of week 48, PASI75 (improvement in PASI ≥75%) response rates were approximately 85% for the ustekinumab group, 80% for the adalimumab group, 75% for the infliximab group, and 50% for the etanercept group. Leptin, adiponectin, and omentin levels were higher in the ustekinumab group at all weeks except baseline. The lowest levels were observed in the etanercept group. The treatment response rate was also lower in the etanercept group. Limitations: We did not evaluate visfatin and resistin levels, insulin sensitivity, and cardiovascular risk that may be associated with weight gain and adipokine levels. Conclusions: Unlike TNF inhibitors, ustekinumab does not cause significant weight changes and it increases adipokine levels more than TNF inhibitors. Adipokine levels seem to be related to the treatment response. 33704001

Amaç: Kanser tahrip edici, ölümcül bir hastalıktır ve dünya çapındaki ölüm nedenleri arasında ikinci sırada yer almaktadır. Mide kanseri gibi kanser türleri için farklı tedavi yöntemleri mevcut olsa da çoğu tedavi yöntemleri birçok yan etkiye sahiptir. Çeşitli iyileştirici özelliklere sahip Cuscuta campestris' in kanser hücreleri üzerindeki etkilerinin araştırılması yeni bir alandır ve etkileri tam olarak çalışılmamış ve aydınlatılmamıştır. Bu çalışmada, C. campestris özütünün farklı konsantrasyonlarının mide kanseri hücreleri üzerindeki sitotoksik, genotoksik, apoptotik ve reaktif oksijen türlerinin üretimindeki etkilerini araştırdık. Gereç ve yöntem: Araştırmamızda, C. campestris için antioksidan, pro-oksidan ve radikal temizleyici aktiviteleri değerlendirildi ve miktar tayini LC-MS / MS yöntemi ile analiz edildi. C. Campestris’ in normal hücrelere kıyasla mide kanseri (AGC) hücreleri üzerindeki seçiciliğini göstermek için insan normal deri fibroblastik (CCD-1079Sk) hücre hattı kullanıldı. Apoptoz belirteçlerinin tayininde akridin oranj / etidyum bromür çift boyama, akış sitometrisi ve western blot metotlarından faydalanıldı. Genotoksik aktivite tayini, Comet analizi ile gerçekleştirildi. Bulgular: Sonuçlarımız, C. Campestris etanolik özütünün doza bağlı bir şekilde, mide kanseri hücre hattı üzerinde normal hücrelere kıyasla önemli ölçüde daha yüksek sitotoksik etkilere sahip olduğunu göstermiştir. Ayrıca, elde ettiğimiz veriler C. campestris'in mide kanseri hücre hatlarında reaktif oksijen türlerinin oluşumunu arttırdığını ve DNA hasarına neden olduğunu açıkça göstermiştir. Yapılan apoptoz tayin ölçümleri C. campestris' in bölünmüş kaspaz-3, bölünmüş kaspaz-9, bölünmüş PARP ve P-53'ü aktive etmesiyle kanser hücreleri üzerinde apoptotik bir etkiye sahip olduğunu da doğrulamıştır. Sonuç: Bu çalışmanın sonucu olarak, C. Campestris’in mide karsinomu tedavisinde umut vadeden bir antikanser ajanı olabileceği düşünülmektedir. Cancer is a destructive disease and second most common cause of death worldwide. Although there are different therapeutic methods for cancers such as gastric cancer, most of them possess many adverse effects. Investigating the effects of Cuscuta campestris, which has various medicinal properties, on cancer cells is a new field and has not been fully elucidated. In this study, we investigated the effects of cytotoxic, genotoxic, apoptotic and reactive oxygen species production on gastric cancer cells with various concentrations of C. campestris extract.MATERIAL AND METHOD: Content analysis of C. campestris was measured by LC-MS/MS method. Selectivity on gastric cancer cell line (AGC cell line) was compared to normal cells, human normal skin fibroblastic cells (CCD-1079Sk) for all experiments. Antioxidant, pro-oxidant and radical scavenging activities were evaluated, and apoptosis indicators were measured via acridine orange/ ethidium bromide double staining, flow cytometer and western blotting assays. Genotoxic activity assay was carried out by using Comet assay. RESULTS: Our results demonstrated that ethanolic extract of C. campestris has significantly higher cytotoxic effects on gastric cancer cell line than normal cells in a dose dependent manner. We also observed that C. campestris increased the generation of reactive oxygen species in gastric cancer cell lines and caused DNA damage. Apoptosis detection assays further confirmed that C. campestris has an apoptotic effect by activated of cleaved caspase-3, cleaved caspase-9, cleaved PARP and P-53. CONCLUSION: Hence, C. campestris might represent a promising anticancer agent for gastric carcinoma treatment.

The formation of the uterus lining, i.e. the endometrium, outside the uterus (ex. in the abdominal cavity, ovaries, or anywhere in the body) is called endometriosis. The presence of endometrial tissue present in the ovaries, thickens after menstruation, leading to menstrual-like bleeding and to the formation of chocolate cyst (Endometrioma) because of the accumulation of old, brown blood in the ovary. It is still unknown, what triggers the development of endometrioma. However, it leads to excessive bleeding during menstrual periods or abnormal bleeding between periods and infertility. Endometriosis is often first diagnosed in those who seek medical attention for infertility. Therefore, new markers of endometrioma as well as new methods of its diagnosis are sought. In this study we used Raman spectra of serum collected from 50 healthy women and 50 women suffering from endometriosis. The obtained Raman data were used in multivariate analysis to determine the Raman range, which can be used for endometrioma diagnostics. Partial Least Square (PLS), Principal Component Analysis (PCA) and Hierarchical Component Analysis (HCA) showed, that it is possible to distinguish between the serum collected from healthy and un-healthy women using the Raman range between 800 cm−1 and 1800 cm−1 and between 2956 cm−1 and 2840 cm−1, while the first range corresponds to the fingerprint region and the second one to lipids vibrations. Consequently, the Pearson correlation test showed a significant positive correlation between values of lipid intensity in Raman spectra and volume of endometriomas. Summarizing, Raman spectroscopy can be a helpful tool in endometrioma diagnosis and the lipid vibrations are candidates for being a spectroscopic marker of the disease being studied. © 2022 Elsevier B.V. 35305519

Colon and gastric cancers are the widespread benign types of cancers which are synchronous and metachronous neoplasms. In terms of the progression and progress of the disease, metabolic processes and differentiation in protein structures have an important role in for treatment of the disease. In this study we proposed to investigate the metabolic process and the differentiation of protein secondary structure among colon and gastric cancer as well as healthy controls using biochemistry and Fourier Transform InfraRed spectroscopy (FTIR) methods. For this purpose, we measured blood serum of 133 patients, which were conducted upon oncology department (45 colon cancer, 45 gastric cancer and 43 control individuals). The obtained spectroscopic results and biochemical assays showed significant reduction in the amount of functional groups in cancer groups contrary with total protein measurements and structure of protein differences between colon and gastric cancers. Differentiations were visible in serum levels of CEA, CA-125, CA-15-3, CA-19-9 AFP (Alpha fetoprotein) of gastric and colon cancer patients as well as in amide III and secondly described amide I regions. Our findings suggest that amide I bonds in colon cancer cells can be helpful in diagnosis of colon cancer. Indeed, our results showed that metabolic processes were higher in gastric cancer group than in colon cancer. Hence, FTIR spectroscopy and curve-fitting analysis of amide I profile can be successfully applied as tools for identifying quantitative and qualitative changes of proteins in human cancerous blood serum. However, what is very important, in PCA analysis we see, that the scatter plot of PC1 (variability 80%) and PC2 (variability 15%) show that the data related to the control and two cancer groups are clustered together with different magnitudes and directions. WOS:000658306800013 33965021 Q1

Diabetic wounds have a slow healing process and easy to be infected. In addition to current drug treatments, supportive approaches are needed for diabetic wound treatment. In this study, we aimed to load Aloe Vera (AV) and Hypericum perforatum oil (HPO) with PCL/Ge (Poly (ɛ-caprolactone)/Gelatine) polymeric biodegradable by electrospinning method into nanofiber dressings on an experimental diabetic wound model to compare the diabetic wound healing effect. Changes in the amount and chemical structure of phospholipids, proteins, and lipids were investigated in the blood and serum samples of the animals using Fourier transform infrared (FTIR) analysis. To evaluate biological events associated with the wound repair process in inflammatory phase we used oxidant and antioxidant status to determine the healing status of wounds such as Total antioxidant status (TAS), Total oxidant level (TOS) and tumor necrosis factor alpha (TNF-α) levels. TOS level increased in DM groups and decreased in the AV and HPO group. Oxidative stress index decreased and TNF-α level increased in the HPO group. FTIR spectra showed changes in the phospholipids, proteins, and carbon chain of lipids in the whole blood as well as serum of DM rats. FTIR spectra combined with Principal component analysis (PCA) showed, that treated DM rats by AV and HPO caused return chemical structure of blood and serum to this observed in control group. Higher similarity with control group for HPO rats was observed. HPO is better than AV in the alternative for healing on diabetic wound. Thus, we have demonstrated that IR spectroscopy and multivariate data analysis and biochemical assays are consistent and correlative with each other. WOS:000639680900001 33743307 Q1

Objectives To evaluate the serum levels of the serine proteinase inhibitor kallistatin in women with preeclampsia (PE). Methods The clinical and laboratory parameters of 55 consecutive women with early-onset PE (EOPE) and 55 consecutive women with late-onset PE (LOPE) were compared with 110 consecutive gestational age (GA)-matched (±1 week) pregnant women with an uncomplicated pregnancy and an appropriate for gestational age fetus. Results Mean serum kallistatin was significantly lower in women with PE compared to the GA-matched-controls (27.74±8.29 ng/mL vs. 37.86±20.64 ng/mL, p Conclusions Serum kallistatin levels are decreased in preeclamptic pregnancies compared to the GA-matched-controls. This decrease was also significant in women with EOPE compared to LOPE. Serum kallistatin had negative correlation with systolic and diastolic blood pressure, creatinine and positive correlation with GA at sampling and GA at birth.

Altindirek, Didem/0000-0001-5068-2968; Armutak, Elif Ilkay/0000-0002-7359-6568 WOS:000574979000007 PubMed ID: 32871779 Background/Aim: This study was designed to provide further evidence for the interactions between hydrogen sulfide (H2S) and nitric oxide (NO) in ischemia/reperfiision (I/R) injury. Materials and Methods: Rat hearts were studied with the Langendorff technique using the H2S donor sodium hydrosulfide (NaHS, 40 mu M) and the cystathionine gamma-lyase (CTH or CSE) inhibitor DL-propargylglycine (PAG, 1 mM). NO synthase inhibitor L-NG-nitroarginine methyl ester (L-NAME, 30 mg/kg, 7 days) was administered before the isolation. The hearts were homogenized for biochemical and molecular analysis. Results: NaHS reversed I/R-induced cardiac performance impairment, increased tissue nitric oxide production and decreased tissue markers for cardiac injury, while L-NAME inhibited these effects. The expression of CTH was increased with PAG, which was suppressed by L-NAME. Conclusion: H2S and NO increase each other's production suggesting their interaction and cooperation in cardioprotection against I/R injury. Scientific Research Projects Coordination Unit of Istanbul UniversityIstanbul University [31508, 55736, 47109] This work was supported by Scientific Research Projects Coordination Unit of Istanbul University [grant numbers; 31508, 55736 and 47109].