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Border cell

Karl T Weber
Current dogma suggests patients with advanced systolic heart failure have an irreversible depression in myocardial contractility. Recent experience with improved ventricular function during continuous flow ventricular assist devices used as destination therapy would suggest otherwise. Herein, cellular and molecular signaling involved in reversing depressed myocardial contractility would be addressed. This includes cardiomyocyte thyroid hormone signaling responsible for the reexpression of fetal gene program that preserves cell efficiency (work and energy consumed) and the rescue of an endogenous population of atrophic myocytes bordering on microdomains of fibrosis to improve contractile mass...
October 2016: American Journal of the Medical Sciences
Jen-Fan Hang, Lei-Chi Wang, Chiung-Ru Lai
Here, we present the first cytological report of a primary splenic inflammatory pseudotumor-like follicular dendritic cell sarcoma. The 57 year-old male was incidentally found with a 2.2 cm well-demarcated splenic nodule. A sonography guided fine needle aspiration of the lesion was performed. The cytologic smears revealed loosely cohesive fragments of oval to spindle cells in a background of prominent lymphoplasmacytic infiltration. The cells showed sparse chromatin, distinct nucleoli, syncytial cell borders, and occasional cytoplasmic processes...
October 24, 2016: Diagnostic Cytopathology
Hermann Koepsell
Orally applied SGLT2 (SLC5A2) inhibitors that enter the blood and decrease renal reabsorption of glucose have been approved as antidiabetic drugs. They decrease blood glucose levels, slightly reduce body weight and blood pressure, and decrease the risk for diabetic nephropathy. The SGLT2 inhibitor empagliflozin has been shown to reduce the risk of severe cardiac failure. This review summarizes knowledge about the functions of SGLT2 and the pathophysiology of type 2 diabetes (T2D) and diabetic follow-up diseases...
October 20, 2016: Pharmacology & Therapeutics
Wanting Zhao, Tammam Alama, Kosuke Kusamori, Hidemasa Katsumi, Toshiyasu Sakane, Akira Yamamoto
The purpose of this study was to investigate the effects of polyoxyethylene 10-oleyl ether and polyoxyethylene 9-lauryl ether, 2 polyoxyethylene alkyl ethers, on the transport and absorption of 2 P-glycoprotein (P-gp) substrates, quinidine and prednisolone, across the intestinal membrane and to elucidate the inhibitory mechanisms of intestinal P-gp by these polyoxyethylene alkyl ethers. For in vitro studies, we used a diffusion chamber method and the Caco-2 cell model. An in situ closed-loop method was used for in vivo study...
October 19, 2016: Journal of Pharmaceutical Sciences
Jie Gao, John L Williams, Esra Roan
Growth plate chondrocytes are responsible for bone growth through proliferation and differentiation. However, the way they experience physiological loads and regulate bone formation, especially during the later developmental phase in the mature growth plate, is still under active investigation. In this study, a previously developed multiscale finite element model of the growth plate is utilized to study the stress and strain distributions within the cartilage at the cellular level when rapidly compressed to 20 %...
October 21, 2016: Biomechanics and Modeling in Mechanobiology
Shigemiki Omiya, Yosuke Omori, Manabu Taneike, Andrea Protti, Osamu Yamaguchi, Shizuo Akira, Ajay M Shah, Kazuhiko Nishida, Kinya Otsu
We have reported that the Toll-like receptor 9 (TLR9) signaling pathway plays an important role in the development of pressure overload-induced inflammatory responses and heart failure. However, its role in cardiac remodeling after myocardial infarction has not been elucidated.TLR9-deficient and control C57Bl/6 wild-type mice were subjected to left coronary artery ligation. The survival rate 14 days post-operation was significantly lower in TLR9-deficient mice than that in wild-type mice with evidence of cardiac rupture in all dead mice...
October 21, 2016: American Journal of Physiology. Heart and Circulatory Physiology
Marwa A A Ibrahim, Ebtsam F Okasha
Genetically modified (GM) plants expressing insecticidal traits offer a new strategy for crop protection. GM-corn contains Bacillus thuringiensis (Bt) genes producing delta endotoxins in the whole plant. Diet can influence the characteristics of the gastrointestinal tract altering its function and structure. The aim of this study was to evaluate the effect of GM-corn on the histological structure of jejunal mucosa of adult male albino rat using different histological, immunohistochemical and morphometrical methods...
October 18, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
Ch Kähling, T Langguth, F Roller, T Kroll, G Krombach, M Knitschke, Ph Streckbein, H P Howaldt, J-F Wilbrand
BACKGROUND: An accurate preoperative assessment of cervical lymph node status is a prerequisite for individually tailored cancer therapies in patients with oral squamous cell carcinoma. The detection of malignant spread and its treatment crucially influence the prognosis. The aim of the present study was to analyze the different staging modalities used among patients with a diagnosis of primary oral squamous cell carcinoma between 2008 and 2015. MATERIAL AND METHODS: An analysis of preoperative staging findings, collected by clinical palpation, ultrasound, and computed tomography (CT), was performed...
September 23, 2016: Journal of Cranio-maxillo-facial Surgery
Al Shaimaa Hasan, Lan Luo, Chen Yan, Tian-Xia Zhang, Yoshishige Urata, Shinji Goto, Safwat A Mangoura, Mahmoud H Abdel-Raheem, Shouhua Zhang, Tao-Sheng Li
Cardiosphere-derived cells (CDCs), one of the promising stem cell sources for myocardial repair, have been tested in clinical trials and resulted in beneficial effects; however, the relevant mechanisms are not fully understood. In this study, we examined the hypothesis that CDCs favor heart repair by switching the macrophages from a pro-inflammatory phenotype (M1) into a regulatory anti-inflammatory phenotype (M2). Macrophages from mice were cultured with CDCs-conditioned medium or with fibroblasts-conditioned medium as a control...
2016: PloS One
Grazyna Nowak, Diana Takacsova Bakajsova, Judit Megyesi
Previously, we documented that activation of protein kinase C-ε (PKC-ε) mediates mitochondrial dysfunction in cultured renal proximal tubule cells (RPTC). This study tested whether deletion of the PKC-ε decreases dysfunction of renal cortical mitochondria and improves kidney function after renal ischemia. PKC-ε levels in mitochondria of ischemic kidneys increased 24h after ischemia. Complex I- and complex II-coupled state 3 respirations were reduced 44% and 27%, respectively, in wild-type (WT) but unchanged and increased in PKC-ε-deficient (KO) mice after ischemia...
October 19, 2016: American Journal of Physiology. Renal Physiology
Meysam Keshavarz, Bo Tan, Krishnan Venkatakrishnan
This in-vitro study introduces residual stress as a third dimension of cell stimulus to modulate the interaction between cells and bio-template, without the addition of either chemical or physical stimuli onto the bio-template surface. Ultrashort Pulsed Laser (USPL) irradiation of silicon-based bio-template causes recrystallization of silicon, which mismatches the original crystal orientation of the virgin silicon. Consequently, subsurface Induced Residual Stress (IRS) is generated. The IRS components demonstrated a strong cytocompatibility, whereas the peripheral of IRS, which is the interface between the IRS component and the virgin silicon surface, a significant directional cell alignment was observed...
October 19, 2016: Scientific Reports
Zied Moatemri, Ghassen Soussi, Salsabil Dabboussi, Samira Mhamdi, Chiraz Aichaouia, Mohsen Khadraoui, Rezaik Cheikh
We report a case of thoracic sarcoidosis in a 72-year-old female, snuff taker, who presented with multinodular pulmonary lesions on chest x-ray. Clinical and biological findings were poor. Thoracic imaging showed soft tissue density nodules with irregular borders. The diagnosis of 'cannon ball' metastases was suspected. A thorough investigation strategy could not prove malignancy. A complete radiologic clearing was obtained spontaneously within three months. A rereading of pathology slides performed afterwards showed multinucleated giant cells on hemorrhagic background with a lymphocytic alveolitis...
October 7, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
Tadashi Kawai, Yuji Tanuma, Keiko Matsui, Osamu Suzuki, Tetsu Takahashi, Shinji Kamakura
It was demonstrated that octacalcium phosphate collagen composite achieved notable bone regeneration in bone defects in preclinical studies. On the basis of the research results, an investigator-initiated exploratory clinical trial was conducted after approval from a local Institutional Review Board. This clinical study was performed as a single-arm non-randomized intervention study. Octacalcium phosphate collagen composite was implanted into a total of 10 cases of alveolar bone defects after tooth extractions and cystectomy...
January 2016: Journal of Tissue Engineering
Urmila Udayashankar, Vijay Srinivas Guduru, Anuradha Ananthaneni, Sabitha Devi Ramisetty, Puneeth Horatti Kuberappa, Srilekha Namala
AIMS: To determine the cellular and nuclear area of keratinocytes in smears obtained from the oral mucosa of tobacco users, those with oral squamous cell carcinoma (OSCC), and from normal healthy persons and resolve if any significant difference exists in these three groups. MATERIALS AND METHODS: The study group comprised 100 subjects 20 controls, (40 OSCC patients-20 from lesional sites and 20 from nonlesional sites, 20 tobacco smokers and 20 tobacco chewers) in the age group of 25-75 years...
July 2016: Journal of Cytology
Maral Mokhtari, Perikala Vijayananda Kumar, Kamran Hayati
BACKGROUND: Cystic papillary thyroid carcinoma (CPTC) is a variant of papillary carcinoma that has many mimickers in cytological grounds. AIM: To study the cytomorphologic features of CPTC and compare them to those of other cystic thyroid lesions using fine-needle aspiration cytology (FNAC). We also aimed to identify the cytomorphologic features that distinguish CPTC from other cystic thyroid lesions. MATERIALS AND METHODS: Seventy-three cases of CPTC were included in the study...
July 2016: Journal of Cytology
Joaquín Gomis-Cebolla, Iñigo Ruiz de Escudero, Natalia Mara Vera-Velasco, Patricia Hernández-Martínez, Carmen Sara Hernández-Rodríguez, Tomás Ceballos, Leopoldo Palma, Baltasar Escriche, Primitivo Caballero, Juan Ferré
The Vip3Ca protein, discovered in a screening of Spanish collections of Bacillus thuringiensis, was known to be toxic to Chrysodeixis chalcites, Mamestra brassicae and Trichoplusia ni. In the present study, its activity has been tested with additional insect species and we found that Cydia pomonella is moderately susceptible to this protein. Vip3Ca (of approximately 90 kDa) was processed to an approximately 70 kDa protein when incubated with midgut juice in all tested species. The kinetics of proteolysis correlated with the susceptibility of the insect species to Vip3Ca...
October 15, 2016: Journal of Invertebrate Pathology
Melanie Hakar, James P Chandler, Eileen H Bigio, Qinwen Mao
We report a case of a 35-year-old female patient who presented with worsening headaches, vertigo, and vision changes. MRI of the brain showed an enhancing lesion in the pineal region. The patient was taken for resection of the lesion which was classified as neuroendocrine carcinoma of the pineal parenchyma, intermediate grade. Histologically, the neoplasm was cellular, mitotically active, and composed of tightly packed cells with high nuclear cytoplasmic ratio, scant cytoplasm, and ill-defined cell borders...
October 11, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Juan Xing, Somak Roy, Sara E Monaco, Liron Pantanowitz
BACKGROUND: Urinary diversion specimens from patients who undergo radical cystectomy are often submitted for urine cytology to screen for recurrent urothelial carcinoma. The objective of the current study was to investigate the frequency and cytohistologic features of cancer recurrence in diversion urine specimens. METHODS: A 10-year retrospective review of archival urinary diversion specimens was conducted. For abnormal cytology cases, cytology slides were reviewed, and their cytomorphology and available corresponding histopathology were documented...
October 14, 2016: Cancer
Amy S Joehlin-Price, Kelsey E McHugh, Julie A Stephens, Zaibo Li, Floor J Backes, David E Cohn, David W Cohen, Adrian A Suarez
MELF invasion has been associated with nonvaginal recurrences and lymph node (LN) metastases in multi-institutional case control studies but has not been well examined in large single-institution cohorts. Hysterectomy specimens with FIGO 1 endometrioid endometrial carcinoma and lymphadenectomies from 2007 to 2012 were identified. Electronic medical records and histologic slides were reviewed. Of 464 identified cases, 163 (35.1%) were noninvasive, 60 (12.9%) had MELF, 222 (47.8%) had a component of the infiltrative invasion pattern without MELF, 13 (2...
October 12, 2016: American Journal of Surgical Pathology
Patrick Pöschke, Igor M Sokolov, Alexander A Nepomnyashchy, Michael A Zaks
We consider the diffusion-advection problem in two simple cellular flow models (often invoked as examples of subdiffusive tracer motion) and concentrate on the intermediate time range, in which the tracer motion indeed may show subdiffusion. We perform extensive numerical simulations of the systems under different initial conditions and show that the pure intermediate-time subdiffusion regime is only evident when the particles start at the border between different cells, i.e., at the separatrix, and is less pronounced or absent for other initial conditions...
September 2016: Physical Review. E
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