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https://www.readbyqxmd.com/read/28796300/apelin-apj-system-a-novel-potential-therapy-target-for-kidney-disease
#1
REVIEW
Zhen Huang, Lele Wu, Linxi Chen
Apelin is an endogenous ligand of seven-transmembrane G protein-coupled receptor APJ. Apelin and APJ are distributed in various tissues, including the heart, lung, kidney, and even in tumor tissues. Studies show that apelin mRNA is highly expressed in the inner stripe of kidney outer medulla, which plays an important role in process of water and sodium balance. Additionally, more studies also indicate that apelin/APJ system exerts a broad range of activities in kidney. Therefore, we review the role of apelin/APJ system in kidney diseases such as renal fibrosis, renal ischemia/reperfusion injury, diabetic nephropathy, polycystic kidney disease and hemodialysis...
August 10, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28758345/does-the-computed-tomographic-appearance-of-the-lung-differ-between-young-and-old-dogs
#2
Natasha L Hornby, Christopher R Lamb
In computed tomographic (CT) images of humans, decreased lung attenuation, bronchial dilation, and/or thickening, air trapping, cysts, and thickened interlobular septa have been associated with increasing age. To determine if there are differences in the CT appearance of the lungs of young and old dogs that could affect interpretation of diagnostic studies, pulmonary CT images of dogs with conditions unrelated to the thorax were reviewed retrospectively in a case-control study. Computed tomography studies of 42 young dogs (range 0...
July 30, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28748193/infliximab-therapy-leading-to-pulmonary-tuberculosis-in-a-patient-with-negative-interferon-%C3%AE-release-assay-igra-based-quantiferon-gold-test
#3
Soni Parita, Kumar Vivek, Kamholz Stephan, Pascal William, Kupfer Yizhak
Infliximab therapy is associated with higher rates of active tuberculosis (TB), particularly extrapulmonary and disseminated forms with unusual symptoms. We report the case of a 66-year-old man with Crohn's disease who developed TB mimicking lung cancer on imaging. He presented with cough and fever of 2 weeks' duration shortly after starting infliximab. Computed tomography of the chest revealed a 7.0 × 3.2 cm(2) pleural-based mass, highly suspicious for malignancy. Histopathological examination confirmed the diagnosis of TB...
July 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28717079/severe-hypocalcemia-in-a-patient-with-recurrent-chondrosarcoma
#4
Jung Nam Eun, Yoo Duk Choi, Jeong Ho Lee, Yun Ah Jeong, Jee Hee Yoon, Hee Kyung Kim, Ho-Cheol Kang
Hypocalcemia is relatively uncommon paraneoplastic syndrome. Only one case of hypocalcemia has been reported in a patient with chondrosarcoma. We herein report a case of a 32-year-old woman with metastatic chondrosarcoma with tetany. Her imaging findings revealed multiple calcific metastatic lesions in the lungs, pancreas, left atrium, and pulmonary vein. A laboratory examination showed hypocalcemia with no evidence of any other disease that could induce hypocalcemia. On the basis of the laboratory and clinical findings, we concluded the etiology of her severe hypocalcemia to be excessive calcium consumption by the tumor itself...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28710871/detection-and-quantification-of-coronary-calcium-from-dual-energy-chest-x-rays-phantom-feasibility-study
#5
Bo Zhou, Di Wen, Katelyn Nye, Robert C Gilkeson, Brendan Eck, David Jordan, David L Wilson
PURPOSE: We have demonstrated the ability to identify coronary calcium, a reliable biomarker of coronary artery disease, using non-gated, 2-shot, dual energy (DE) chest x-ray imaging. Here we will use digital simulations, backed up by measurements, to characterize DE calcium signals and the role of potential confounds such as beam hardening, x-ray scatter, cardiac motion, and pulmonary artery pulsation. For the DE calcium signal, we will consider quantification, as compared to CT calcium score, and visualization...
July 15, 2017: Medical Physics
https://www.readbyqxmd.com/read/28629523/significance-of-erythropoietin-receptor-antagonist-emp9-in-cancers
#6
Yoshiko Yasuda, Mitsugu Fujita
We have clarified that cancer cells express their own erythropoietin (Epo) and its receptor (EpoR) mRNA levels, and the respective proteins, which are under the control of Epo-EpoR signaling. Then we explored to inhibit the Epo-EpoR signaling with an EpoR antagonist Epo mimetic peptide 9 (EMP9) that is a derivative of an Epo-mimicking peptide EMP1. In the study of the cancer cell lines in vitro, rhEpo accelerated the cancer cell growth, whereas the EMP9 inhibited the cell growth along with the inhibition of STAT5 tyrosine phosphorylation...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28615677/associations-between-radiologist-defined-semantic-and-automatically-computed-radiomic-features-in-non-small-cell-lung-cancer
#7
Stephen S F Yip, Ying Liu, Chintan Parmar, Qian Li, Shichang Liu, Fangyuan Qu, Zhaoxiang Ye, Robert J Gillies, Hugo J W L Aerts
Tumor phenotypes captured in computed tomography (CT) images can be described qualitatively and quantitatively using radiologist-defined "semantic" and computer-derived "radiomic" features, respectively. While both types of features have shown to be promising predictors of prognosis, the association between these groups of features remains unclear. We investigated the associations between semantic and radiomic features in CT images of 258 non-small cell lung adenocarcinomas. The tumor imaging phenotypes were described using 9 qualitative semantic features that were scored by radiologists, and 57 quantitative radiomic features that were automatically calculated using mathematical algorithms...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28586348/primary-multidrug-resistant-tuberculosis-versus-drug-sensitive-tuberculosis-in-non-hiv-infected-patients-comparisons-of-ct-findings
#8
Duo Li, Wei He, Budong Chen, Pingxin Lv
BACKGROUND: Multidrug-resistant tuberculosis has emerged as a global threat. The aim of this work was to compare the CT findings of primary multidrug-resistant tuberculosis and drug-sensitive tuberculosis in non-AIDS adults. MATERIAL AND METHODS: From January 2012 to February 2016, 89 patients with primary multidrug-resistant tuberculosis were retrospectively reviewed, and 89 consecutive drug sensitive TB patients with no history of anti-tuberculous chemotherapy from January 2014 to November 2014 were enrolled as control group...
2017: PloS One
https://www.readbyqxmd.com/read/28553186/liver-metastasis-of-lung-cancer-detected-with-similar-uptake-pattern-on-bone-scintigraphy-and-fluorine-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-what-s-the-pathophysiologic-mechanism
#9
Funda Üstün, Salim Aksoy, Burcu Dirlik Serim, Gülay Durmuş Altun
Bone scintigraphy with (99m)Tc diphosphonates may exhibit extraosseous lesions in addition to metastatic lesions. Multiple factors can affect extraosseous (99m)Tc methylene diphosphonate (MDP) uptake. Similar uptake pattern of (99m)Tc MDP and fluorine-18 fluorodeoxyglucose ((18)F FDG) in hepatic metastasis was not already notified. In our case, initial tumor necrosis and subsequent intracellular calcification resulted in similar (99m)Tc MDP and (18)F FDG accumulation in the metastatic area.
April 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28544573/spindle-cell-subtype-of-pulmonary-clear-cell-tumor-with-prominent-calcification-and-malignant-potential
#10
Yinghua Song, Fangfang Chen, Caiqing Zhang, Xiaoyan Lin
Perivascular epithelioid cell tumor of the lung, also known as clear cell "sugar" tumor, is a rare benign tumor arising from perivascular epithelioid cells. Herein, we present a case of spindle cell subtype of pulmonary perivascular epithelioid cell tumor with prominent calcification and malignant potential in a 49-year-old woman. Histologically, the striking feature of this lesion was attributed to the presence of spindle cells arranged in a diffuse pattern, which is a pitfall for diagnosis. However, some of the lesion contained polygonal tumor cells with clear abundant cytoplasm surrounded by thin-walled vascular spaces...
May 25, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28533650/extensive-visceral-calcification-demonstrated-on-99m-tc-mdp-bone-scan-in-patient-with-carcinoma-penis-and-hypercalcemia-of-malignancy
#11
Sunny J Gandhi, Bhavdeep Rabadiya
Hypercalcemia is a common life-threatening complication associated with several malignancies. Parathyroid-related peptide has been shown to cause hypercalcemia in several solid tumors but rarely in penile cancer. We report a case of penile cancer with hypercalcemia causing metastatic visceral calcification in lungs, liver, and stomach detected on bone scan without significant abnormalities on CT scan.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533647/f-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-appearance-of-extramedullary-hematopoesis-in-a-case-of-primary-myelofibrosis
#12
Anirban Mukherjee, Chandrasekhar Bal, Madhavi Tripathi, Chandan Jyoti Das, Shamim Ahmed Shamim
A 44-year-old female with known primary myelofibrosis presented with shortness of breath. High Resolution Computed Tomography thorax revealed large heterogeneously enhancing extraparenchymal soft tissue density mass involving bilateral lung fields. F-18-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography revealed mildly FDG avid soft tissue density mass with specks of calcification involving bilateral lung fields, liver, and spleen. Subsequent histopathologic evaluation from the right lung mass was suggestive of extramedullary hematopoesis...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28515585/calcification-of-the-submandibular-gland-in-a-patient-with-chickenpox
#13
Cetin Celenk, Peruze Celenk
The pneumonia virus of chickenpox is now known to cause scattered calcified foci in the lungs, however to our knowledge, recent literature has not discussed calcification in the salivary glands. A 15-year-old boy consulted the department of radiology because of a swelling on the right side of the submandibular area. Radiological assessment included an ultrasonography and computerized tomography scan of the neck area, which demonstrated intraparenchymal amorph calcification, with approximately 13 mm diameter in the right submandibular gland...
January 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28505611/novel-insights-in-fetal-cardiomyopathy-due-to-in-utero-herpes-simplex-virus-infection
#14
Tamara Margit Jutta Pahlitzsch, Elisa Theresa Helbig, Nanette Sarioglu, Larry Hinkson, Katharina von Weizsäcker, Wolfgang Henrich
This is a case report of fatal cardiomyopathy in a fetus following maternal intrauterine infection with herpes simplex virus (HSV), despite the mother having no symptoms of an infection. The fetus showed signs of a disseminated infection affecting the heart, brain, lungs, liver, adrenal glands, and skin. HSV cardiomyopathy, characterized by vast necrosis, extensive calcifications, and inflammatory infiltration, was found to be the cause of intrauterine fetal death. To our knowledge, this is a unique report of an asymptomatic maternal nonprimary or recurrent HSV infection that induced a transmission of HSV resulting in extensive and fatal changes in the fetal heart...
May 16, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28485985/breast-metastases-from-extramammary-malignancies-multimodality-imaging-aspects
#15
Almir G V Bitencourt, Roberta R M Gama, Luciana Graziano, Erika M S Negrão, Silvia M P S Sabino, Anapaula H U Watanabe, Camila S Guatelli, Juliana A Souza, Edmundo C Mauad, Elvira F Marques
Breast metastases from extramammary cancers are rare and usually related to poor prognosis. The extramammary tumors most frequently exhibiting breast metastases are melanoma, lymphomas, ovarian cancer, lung, neuroendocrine tumors, and sarcomas. Due to the lack of reliable and specific clinical or radiological signs for the diagnosis of breast metastases, a combination of techniques is needed to differentiate these lesions from primary breast carcinoma or even benign breast lesions. Multiple imaging methods may be used to evaluate these patients, including mammography, ultrasound, magnetic resonance imaging (MRI), computed tomography (CT) and positron emission tomography (PET/CT)...
May 9, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28482911/rapid-development-of-metastatic-pulmonary-calcifications-in-primary-hyperparathyroidism-a-case-report-and-literature-review
#16
Hui-Ming Sun, Fei Chen, Hong-Lin Yin, Xiao-Yong Xu, Hong-Bing Liu, Bei-Lei Zhao
BACKGROUND: Metastatic pulmonary calcification (MPC) is rarely reported in primary hyperparathyroidism, especially MPC develops quickly. We report such a case here with a literature review. CASE PRESENTATION: A 41-year-old woman presented with cough and dyspnea. Data from clinical, radiological, pathological, technetium ((99m)Tc)-methylene diphosphonate (MDP) bone scintillation imaging, and (99m)Tc-methoxy isobutyl isonitrile (MIBI) thyroid imaging were studied...
May 8, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28473439/implication-of-inflammation-and-epigenetic-readers-in-coronary-artery-remodeling-in-patients-with-pulmonary-arterial-hypertension
#17
Jolyane Meloche, Marie-Claude Lampron, Valérie Nadeau, Mélanie Maltais, François Potus, Caroline Lambert, Eve Tremblay, Géraldine Vitry, Sandra Breuils-Bonnet, Olivier Boucherat, Eric Charbonneau, Steeve Provencher, Roxane Paulin, Sébastien Bonnet
OBJECTIVE: Pulmonary arterial hypertension (PAH) is a vascular disease not restricted to the lungs. Many signaling pathways described in PAH are also of importance in other vascular remodeling diseases, such as coronary artery disease (CAD). Intriguingly, CAD is 4× more prevalent in PAH compared with the global population, suggesting a link between these 2 diseases. Both PAH and CAD are associated with sustained inflammation and smooth muscle cell proliferation/apoptosis imbalance and we demonstrated in PAH that this phenotype is, in part, because of the miR-223/DNA damage/Poly[ADP-ribose] polymerase 1/miR-204 axis activation and subsequent bromodomain protein 4 (BRD4) overexpression...
August 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28464914/efficacy-of-radiotherapy-for-the-treatment-of-cystic-echinococcosis-in-naturally-infected-sheep
#18
Rui Mao, Wen-Bao Zhang, Hong-Zhi Qi, Tao Jiang, Ge Wu, Peng-Fei Lu, Abudula Ainiwaer, Ge Shang, Lin Xu, Jie Hao, Xi Shou, Hai-Tao Li, Jun Li, Song-An Zhang, Yong-Xing Bao, Hao Wen
BACKGROUND: Radiotherapy is commonly used to treat cancers. To date, there has been no study focusing on the effects of radiotherapy on hydatid disease in large animals. In this study, we aim to investigate the efficiency and safety of radiotherapy for treating hydatid disease caused by Echinococcus granulosus in naturally infected sheep. METHODS: Ultrasound was used to screen naturally infected sheep in an echinococcosis endemic area in Xinjiang, China. A computer tomography (CT) scan confirmed the presence of hydatid cysts...
May 3, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28459414/postmortem-findings-for-7-neonates-with-congenital-zika-virus-infection
#19
Anastácio Q Sousa, Diane I M Cavalcante, Luciano M Franco, Fernanda M C Araújo, Emília T Sousa, José Telmo Valença-Junior, Dionne B Rolim, Maria E L Melo, Pedro D T Sindeaux, Marialva T F Araújo, Richard D Pearson, Mary E Wilson, Margarida M L Pompeu
Postmortem examination of 7 neonates with congenital Zika virus infection in Brazil revealed microcephaly, ventriculomegaly, dystrophic calcifications, and severe cortical neuronal depletion in all and arthrogryposis in 6. Other findings were leptomeningeal and brain parenchymal inflammation and pulmonary hypoplasia and lymphocytic infiltration in liver and lungs. Findings confirmed virus neurotropism and multiple organ infection.
July 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28457048/asymptomatic-presentation-of-large-cardiac-hydatid
#20
Amey Beedkar, Rohan Parikh, Pradeep Deshmukh
Hydatid cyst is a tissue parasitic infection caused by tapeworm Echinococcus granulosus. Common location for hydatid cysts are the liver (65%) and the lungs (25%). Cardiac hydatid cyst is seen rarely, occurring in about 0.5-2% of all cases of hydatid disease. We present this case of 45 years female who presented with short duration of dry cough and atypical chest pain. Chest X ray showed cardiomegaly with round bulge at the right heart border and curvilinear calcification in left upper abdomen in the region of spleen...
February 2017: Journal of the Association of Physicians of India
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