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Daryl Ramai, Emmanuel Ofori, Sofia Nigar, Madhavi Reddy
Primary hepatic peripheral T-cell lymphoma (H-PTCL) is one of the rarest forms of non-Hodgkin lymphoma. We report a patient who presented with worsening jaundice, abdominal pain, and vomiting. Laboratory values were significant for elevated total bilirubin, alkaline phosphatase, and liver aminotransferases. Following a liver biopsy, histopathology revealed several large dense clusters of atypical T-lymphocytes which were CD2+, CD3+, CD5+, CD7-, CD4+, CD8-, CD56-, CD57-, CD30+ by immunohistochemistry. The proliferation index was approximately 70% by labeling for ki67/mib1...
February 27, 2018: World Journal of Hepatology
Mehmet Demirci, Suat Saribas, Nigar Ozer, Sezer Toprak, Emel Caglar, Gonenc Ortakoylu, Pelin Yuksel, Gulsel Ayaz, Hrisi Bahar Tokman, Omer Uysal, Harika Oyku Dinc, Tevhide Ziver, Bekir Kocazeybek
BACKGROUND: Several nucleic acid amplification techniques (IS6110, 16S rRNA, and 85B mRNA) were developed for the rapid, direct detection of Mycobacterium tuberculosis. We aimed to assess the diagnostic performance of 85B mRNA-based RT-qPCR by comparing with the real-time PCR COBAS TaqMan MTB Kit while using the BACTEC MGIT 960 method as the gold standard. METHODS: 60 patients with confirmed pulmonary TB and 60 individuals without TB were included as the study and control groups, respectively...
March 8, 2018: Journal of Infection and Public Health
Sofia Nigar, Emmanuel Ofori, Daryl Ramai, Mahesh Krishnaiah
No abstract text is available yet for this article.
March 2018: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
Andrea Pavlou, Julien Jacques, Nigar Ahmadova, Fikret Mamedov, Stenbjörn Styring
Charge separation is a key component of the reactions cascade of photosynthesis, by which solar energy is converted to chemical energy. From this photochemical reaction, two radicals of opposite charge are formed, a highly reducing anion and a highly oxidising cation. We have previously proposed that the cation after far-red light excitation is located on a component different from PD1, which is the location of the primary electron hole after visible light excitation. Here, we attempt to provide further insight into the location of the primary charge separation upon far-red light excitation of PS II, using the EPR signal of the spin polarized 3P680 as a probe...
February 12, 2018: Scientific Reports
Rahime Sekerci, Nuray Acar, Filiz Tepekoy, Ismail Ustunel, Nigar Keles-Celik
Hypertension is an important health problem that is manifested by systemic arterial blood pressure being permanently elevated and leading to serious complications. Hypertension is the basis for coronary heart diseases, heart failure, kidney damage, cerebrovascular diseases. Due to ethical concerns, there is no detailed study of the mechanism, side effects and treatment of hypertension in humans. For this reason, specific studies related to the organ of hypertension are performed in experimental animals. The heart and kidney tissue, which are the most important organs that hypertension has damaged, have formed specific organs of our work...
January 29, 2018: Acta Histochemica
Nigar Keles-Celik, Ozkan Kose, Rahime Sekerci, Gunes Aytac, Adil Turan, Ferhat Güler
Accessory ossicles of the foot and ankle are normal variants of bone development that usually remain asymptomatic. However, they may be involved in various disorders and become a source of pain such as in fractures, dislocations, degenerative changes, osteonecrosis, osteoarthritis, osteochondral lesions, avascular necrosis, and irritation or impingement of adjacent soft tissues. Hence, during the assessment of the situations above, knowledge about these little-known ossicles could be very important to reach the correct diagnosis...
November 26, 2017: Curēus
Serdar Kalemci, Fatih Akin, Aydin Sarihan, Cem Sahin, Arife Zeybek, Nigar Yilmaz
INTRODUCTION    Chronic obstructive pulmonary disease (COPD) is the most important lung disease leading to disability and even death. Recent studies have shown that the platelet indices are associated with several cardiovascular diseases; however, there is little data on COPD. OBJECTIVES    We aimed to explore the relationship between platelet indices, together with the platelet-to-lymphocyte ratio (PLR), white blood cell count to mean platelet volume ratio (WMR), and red cell distribution width (RDW) and the severity of COPD...
January 31, 2018: Polish Archives of Internal Medicine
Sehar Nigar, Ejaz Ahmed Khan, Tahir Aziz Ahmad
Leukocyte adhesion deficiency (LAD) is a rare primary immunodeficiency disorder with autosomal recessive inheritance which is characterized by presence of a defect of phagocytic function resulting from a lack of leukocyte cell surface expression of b2 integrin molecules (CD11 and CD18) that are essential for chemotaxis. The classic symptoms of the disease are failure of separation of the umbilical cord and recurrent bacterial infections, which continue throughout life. We describe here two cases of infants who presented with characteristic history of recurrent infections, delayed separation of umbilical cord and marked leukocytosis...
January 2018: JPMA. the Journal of the Pakistan Medical Association
Emmanuel Ofori, Daryl Ramai, Sofia Nigar, Philip Xiao, Gullamulah Shahzad, Madhavi Reddy
No abstract text is available yet for this article.
December 27, 2017: Journal of Gastrointestinal Cancer
Zumrut Dogan, Aymelek Cetin, Ebru Elibol, Nigar Vardi, Yusuf Turkoz
PURPOSE: Teratogens cause birth defects and malformations while human development is being completed. In pregnancy, urinary tract infection (UTI) is a common health problem caused by bacteria. The fluoroquinolones such as ciprofloxacin, levofloxacin, moxifloxacin, and gemifloxacin can treat various types of bacterial infections successfully. The aim of this study is to determine whether the use of ciprofloxacin during pregnancy causes oxidative stress on brain tissues of the fetus, and whether quercetin contributes to prevent this damage if stress has already occurred...
January 10, 2018: Journal of Maternal-fetal & Neonatal Medicine
Joseph A Carnevale, Nigar Ahmedli, John F Morrison, Wael F Asaad, Petra Klinge, Albert Telfeian
BACKGROUND AND IMPORTANCE: Cerebrospinal fluid shunt placement is used to treat the various causes of hydrocephalus by redirecting the cerebrospinal fluid to the body, most commonly from the ventricle to the peritoneum. Distal catheter displacement from the peritoneal cavity can occur as a complication, necessitating reoperation. CLINICAL PRESENTATION: We report 2 such cases in obese patients involving retropulsion of the distal tubing. To address this complication, we implanted a T-connector to the distal catheter construct...
December 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
Felix Reyes, Navneet Singh, Nigar Anjuman-Khurram, Jihae Lee, Lillian Chow
Citrobacter koseri is a gram-negative bacillius that belongs to the Enterobacteriaceae family. It is an uncommon pathogen that typically causes meningitis and brain abscesses in children, however central nervous system (CNS) infections are rarely found in adults. We present a case of C. koseri meningitis in an immunocompetent adult secondary to intestinal micro-perforation caused by Strongyloides A 76-year-old man admitted for asthma exacerbation developed septic shock. A lumbar puncture revealed bacterial meningitis...
2017: IDCases
Tuba Talo Yildirim, Güliz Nigar Güncü, Dincer Göksülük, Melek Didem Tözüm, Mehmet Colak, Tolga Fikret Tözüm
OBJECTIVES: The purpose of this study was to evaluate the prevalence of sinus mucosal thickening (MT) and mucosal appearance (MA) in a patient population as detected with cone beam computed tomography (CBCT) and to determine the effects of various disease and demographic factors on MT and MA. STUDY DESIGN: The retrospective study consisted of CBCT images of 1000 maxillary arches in 500 patients. The arches were divided into 3 groups (atrophic, partially atrophic, and nonatrophic) according to the type of the maxillary dental crest...
September 8, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Shireen Nigar, Yoshinari Yamamoto, Takuma Okajima, Suguru Shigemori, Takashi Sato, Tasuku Ogita, Takeshi Shimosato
BACKGROUND: Bacterial genomes span a significant portion of diversity, reflecting their adaptation strategies; these strategies include nucleotide usage biases that affect chromosome configuration. Here, we explore an immuno-synergistic oligodeoxynucleotide (iSN-ODN, named iSN34), derived from Lactobacillus rhamnosus GG (LGG) genomic sequences, that exhibits a synergistic effect on immune response to CpG-induced immune activation. METHODS: The sequence of iSN34 was designed based on the genomic sequences of LGG...
October 4, 2017: BMC Immunology
Lokman H Tanriverdi, Hakan Parlakpinar, Onural Ozhan, Necip Ermis, Alaadin Polat, Nigar Vardi, Kevser Tanbek, Azibe Yildiz, Ahmet Acet
Preventive and/or therapeutic interventions for ischemic heart disease have gained considerable attention worldwide. We investigated the mechanism(s) underlying cardioprotection of apocynin (APO) and whether it attenuates isoproterenol (ISO)-induced myocardial damage in vivo. Thirty-two male Wistar Albino rats were randomised into four groups (n = 8 for each group): Group I (Control); Group II (ISO), ISO was given intraperitoneally (ip) (150 mg/kg/d) daily for 2 consecutive days; Group III (APO + ISO), APO was applied ip 20 mg/kg 30 min before the first ISO administration and continued for the next 2 d after the second ISO administration; Group IV (ISO + APO), after the ISO treatment on days 1 and 2, 20 mg/kg APO was given ip on days 3 and 4...
October 2017: Free Radical Research
Ayse Esra Karakoc, Rukiye Berkem, Hasan Irmak, Ali Pekcan Demiroz, Idil Yenicesu, Nigar Ertugrul, Önder Arslan, Sabri Kemahli, Sevinc Yilmaz, Osman Ozcebe, Abdurrahman Kara, Gulsum Ozet, Ziya Cibali Acikgoz, Tulin Acikgoz
PURPOSE: In this study we aimed to propose an algorithm for initial anti HCV EIA reactive blood donations in Turkey where nucleic acid amplification tests are not yet obligatory for donor screening. METHODS: A total of 416 anti HCV screening test reactive donor samples collected from 13 blood centers from three cities in Turkey were tested in duplicate by Ortho HCV Ab Version 3.0 and Radim HCV Ab. All the repeat reactive samples were tested by INNO-LIA HCV Ab 3...
September 8, 2017: Transfusion and Apheresis Science
Nigar Ahmadova, Fikret Mamedov
Photosystem II (PS II) contains two redox-active tyrosine residues on the donor side at symmetrical positions to the primary donor, P680. TyrZ, part of the water-oxidizing complex, is a preferential fast electron donor while TyrD is a slow auxiliary donor to P680(+). We used PS II membranes from spinach which were depleted of the water oxidation complex (Mn-depleted PS II) to study electron donation from both tyrosines by time-resolved EPR spectroscopy under visible and far-red continuous light and laser flash illumination...
September 18, 2017: Photosynthesis Research
Yoshinari Yamamoto, Ryu Sugimura, Takafumi Watanabe, Suguru Shigemori, Takuma Okajima, Shireen Nigar, Fu Namai, Takashi Sato, Tasuku Ogita, Takeshi Shimosato
Sepsis is a life-threatening, overwhelming immune response to infection with high morbidity and mortality. Inflammatory response and blood clotting are caused by sepsis, which induces serious organ damage and death from shock. As a mechanism of pathogenesis, platelet-activating factor (PAF) induces excessive inflammatory responses and blood clotting. In this study, we demonstrate that a Class A CpG oligodeoxynucleotide (CpG-A1585) strongly induced PAF acetylhydrolase, which generates lyso-PAF. CpG-A1585 rescued mice from acute lethal shock and decreased fibrin deposition, a hallmark of PAF-induced disseminated intravascular coagulation...
2017: Frontiers in Immunology
Fu Namai, Suguru Shigemori, Koichi Sudo, Takashi Sato, Yoshinari Yamamoto, Shireen Nigar, Tasuku Ogita, Takeshi Shimosato
An osteoblastic protein, osteocalcin (OC), exists in vivo in two forms: carboxylated OC, and uncarboxylated or low-carboxylated OC (ucOC). ucOC acts as a hormone to regulate carbon and energy metabolism. Recent studies demonstrated that ucOC exerts insulinotropic effects, mainly through the glucagon-like peptide 1 (GLP-1) pathway. GLP-1 is an insulinotropic hormone secreted by enteroendocrine L cells in the small intestine. Thus, efficient delivery of ucOC to the small intestine may be a new therapeutic option for metabolic diseases such as diabetes and obesity...
September 13, 2017: Current Microbiology
Pınar Cakan, Sedat Yildiz, Tuba Ozgocer, Azibe Yildiz, Nigar Vardi
This study aimed to investigate the effects of maternal viral infection during a critical time window of fetal hypothalamic development on timing of puberty in the female offspring. For that purpose, a viral mimetic (i.e. synthetic double strand RNA, namely, polyinosinic:polycytidylic acid, Poly (I:C)) or saline was injected (i.p.) to the pregnant rats during the beginning (day 12 of pregnancy, n=5 for each group) or at the end of this time window (day 14 of pregnancy, n=5 for each group). Four study groups were formed from the female pups (n=9 or 10 pups/group)...
August 21, 2017: Canadian Journal of Physiology and Pharmacology
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