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morphology AND histology AND vessels

K A Rogov, L V Kaktursky, L P Mikhailova
OBJECTIVE: to investigate the morphological and phenotypic features of cardiac myxoma (CM), to discuss argumentative issues on the sources of its growth. SUBJECTS AND METHODS: The investigation included 176 sporadic and familial myxomas originating from different cardiac chambers (96% from the atria). The histological, ultrastructural, and immunohistochemical features of the cells and vessels of this tumor were studied. RESULTS: The morphological and phenotypic features of the embryonic endothelium resembling the cells of the primary cardiovascular network were found in the cells and vessels of CM...
2018: Arkhiv Patologii
Kumiko Matsumoto, Jun Kosaka, Hiroo Suami, Yoshihiro Kimata
Background: The morphologic and histologic behavior of lymphatic vessels in lymphedema has not been well analyzed using laboratory animals. The purpose of the present study was to elucidate the regeneration process of lymphatic vessels after acute lymphedema in a rat model. Methods: The acute lymphedema was induced by an amputation and a replantation surgery on a rat hind limb. Recovery of lymphatic flow was traced using fluorescent lymphography with dye injection...
May 2018: Plastic and Reconstructive Surgery. Global Open
Peijun Gong, Dao-Yi Yu, Qiang Wang, Paula Yu, Karol Karnowski, Morgan Heisler, Ashley Francke, Dong An, Marinko V Sarunic, David D Sampson
We employ optical coherence tomography (OCT) and optical coherence microscopy (OCM) to study conjunctival lymphatics in porcine eyes ex vivo. This study is a precursor to the development of in vivo imaging of the collecting lymphatics for potentially guiding and monitoring glaucoma filtration surgery. OCT scans at 1300 nm and higher-resolution OCM scans at 785 nm reveal the lymphatic vessels via their optical transparency. Equivalent signal characteristics are also observed from blood vessels largely free of blood (and devoid of flow) in the ex vivo conjunctiva...
June 19, 2018: Journal of Biophotonics
Oleksandr V Kravets, Ihor A Danilenko, Olga M Smorodska, Artem M Piddubnyi, Inna-Margaryta S Zakorko, Sergei N Danilchenko, Roman A Moskalenko, Mykola G Kononenko, Anatolii M Romaniuk
OBJECTIVE: Introduction: Information on chemical and phase composition of pancreoliths is limited and discrepant. There are reports, that pancreoliths are composed by calcium, phosphate, calcium carbonate or combination of calcium with fatty acids The aim of the work is studying of structural characteristics of pancreatoliths in 5 clinical cases. PATIENTS AND METHODS: Materials and methods: Morphological and crystal-chemical study of five cases of pathological biomineralization in the pancreas were conducted in the work...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
Nabila Yousef Abdelhalim, Mohammed Hany Shehata, Hanan Nabih Gadallah, Walaa Mohamed Sayed, Aref Ali Othman
Diabetes mellitus (DM) is a chronic metabolic disease in which the body fails to produce enough insulin or increased tissue resistance to insulin. The diabetes may have profound effects on placental development and function. This study was designed to detect the placental changes in pregnancy associated with DM comparing these changes with normal placenta. The study was carried out on sixty full-term placentae; divided into three equal groups; control group (group I): placentae of normal pregnancy, uncontrolled diabetes (group II): placentae from pregnant women whose blood glucose is poorly controlled during pregnancy...
June 2, 2018: Acta Histochemica
William M Harris, Michael Plastini, Nikolas Kappy, Telisha Ortiz, Shaohua Chang, Spencer Brown, Jeffrey P Carpenter, Ping Zhang
Background: Adipose-derived stem cells (ASCs) assisted lipotransfer have been considered to facilitate the survival of fat grafts. However, emerging evidence of insufficient vascularization is another obstacle for fat graft survival in cell-assisted lipotransfer. Objectives: This study evaluated whether supplementation of differentiated toward an endothelial phenotype ASCs with fat lipoaspirate improves survival and neovascularization in fat transplantation. Methods: ASCs were isolated from human periumbilical fat tissue and cultured in Endothelial Growth Medium for 2wk...
May 28, 2018: Aesthetic Surgery Journal
Liangjun Xia, Youbing Xia
OBJECTIVE: To review and collect the study achievements and the effect mechanism of acupuncture in the treatment of premature ovarian failure (POF) in recent 20 years so as to provide more references for the clinical treatment of POF with acupuncture. METHODS: Through retrieving PubMed, CNKI and VIP, the literature on acupuncture for POF was collected from January 1, 1998 through March 31, 2017 regarding the rule of acupoint selection and the therapeutic method...
May 12, 2018: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
Raul S Gonzalez, Justin M M Cates, Chanjuan Shi
Mesenteric tumor deposits are an adverse prognostic factor for small intestinal well-differentiated neuroendocrine tumors. Per the American Joint Committee on Cancer (AJCC) Cancer Staging Manual (eighth edition), any mesenteric tumor deposit larger than 2 cm signifies pN2 disease. This criterion has not been critically evaluated as a prognostic factor for small intestinal neuroendocrine tumors, nor have multifocality or histologic features of mesenteric tumor deposits. We evaluated 70 small intestinal neuroendocrine tumors with mesenteric tumor deposits for lesional contour, sclerosis, inflammation, calcification, entrapped blood vessels, and perineural invasion...
May 24, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
Sielte Maes, Rehan Haidry, Raf Bisschops
INTRODUCTION: Esophageal cancer is one of the leading causes of cancer-related death worldwide. Its poor prognosis is related to an often late diagnosis. An earlier diagnosis and treatment however, is related to a better outcome. Early stage esophageal cancer can be diagnosed and treated endoscopically with minimally invasive techniques, which is associated with lower mortality and morbidity than surgery. Whether esophageal carcinoma can be treated endoscopically depends mainly on the risk of lymph node metastasis, which itself correlates to the invasion depth of the tumour...
May 24, 2018: Minerva Chirurgica
Volodymyr H Hryn, Tamara F Deineha, Аndrij V Piliuhin, Anna V Lavrenko, Dmytro O Lavrenko
OBJECTIVE: Introduction: Salivary glands have a significant impact on the state of the homeostasis of the human body, oral cavity in particular, sensitively responding to pathological processes. The reactivity of the salivary glands in response to pathological processes that are organically linked to morphology and functions of the organ's structures, and particularly the excretory ducts of the glands and their microcirculatory blood flow, is one of the problems which have not been solved to date...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
Aleksandra Wilk, Dagmara Szypulska-Koziarska, Karolina Kędzierska-Kapuza, Agnieszka Kolasa-Wołosiuk, Kamila Misiakiewicz-Has, Kazimierz Ciechanowski, Barbara Wiszniewska
A negative result of therapy based on immunosuppressive drugs is its leading to pathological alterations in the organ, including liver. Use of immunosuppressive medication may also lead to organized and genetically controlled cell death - apoptosis. The aim of this study was to examine histopathological changes in the livers of rats treated with immunosuppressive drugs, and also to determine the effects of different groups of immunosuppressive drugs on apoptosis activity in the hepatocytes of rat livers. The study was conducted on archival material obtained from Department of Nephrology, Transplantology and Internal Medicine of the Independent Public Clinical Hospital No...
May 16, 2018: Transplant Immunology
Fan Yang, Feng Xue, Junjie Guan, Zeng Zhang, Jimin Yin, Qingling Kang
BACKGROUND/AIMS: Osteonecrosis of the femoral head (ONFH) is a devastating orthopedic disease. Previous studies suggested that stromal-cell-derived factor (SDF)-1 was involved in osteogenesis and angiogenesis. However, whether SDF-1 potentiates the angiogenesis and osteogenesis of bone marrow-derived stromal stem cells (BMSCs) in ONFH is not clear. METHODS: BMSCs were transfected with green fluorescent protein (GFP) or the fusion gene encoding GFP and SDF-1α, and transgenic efficacy was monitored by immunofluorescence...
May 7, 2018: Cellular Physiology and Biochemistry
Andrea J R Balthasar, Torre M Bydlon, Hans Ippel, Marjolein van der Voort, Benno H W Hendriks, Gerald W Lucassen, Geert-Jan van Geffen, Maarten van Kleef, Paul van Dijk, Arno Lataster
BACKGROUND: During several anesthesiological procedures, needles are inserted through the skin of a patient to target nerves. In most cases, the needle traverses several tissues-skin, subcutaneous adipose tissue, muscles, nerves, and blood vessels-to reach the target nerve. A clear identification of the target nerve can improve the success of the nerve block and reduce the rate of complications. This may be accomplished with diffuse reflectance spectroscopy (DRS) which can provide a quantitative measure of the tissue composition...
May 14, 2018: Lasers in Surgery and Medicine
Monika Gupta, Parmod Kumar Goyal, Poonam Singh, Anu Sharma
Introduction: Menisci and cruciate ligaments are intra-articular structures of knee, and injury to these structures is common. Morphometric data gained in the study will help in analyzing the variations among humans and correlating it with the possibility, location, and type of injuries as well as better interpretation of structures during magnetic resonance imaging and arthroscopy which will further help in reconstructive surgeries of knee. Materials and Methods: Width and thickness of the medial menisci (MM), lateral menisci (LM), and maximum length and width of anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) were taken on twenty knees...
April 2018: International Journal of Applied and Basic Medical Research
Yi-Ju Ho, Tzu-Chia Wang, Ching-Hsiang Fan, Chih-Kuang Yeh
Tumor microenvironment has different morphologies of vessels in the core and rim regions, which influences the efficacy of tumor therapy. Our study purposed to improve the spatial uniformity of the anti-vascular effect and drug penetration within the tumor core and rim in combination therapies by regulating ultrasound-stimulated microbubble destruction (USMD). Focused ultrasound at 2 MHz and lipid-shell microbubbles (1.12±0.08 μm, mean±standard deviation) were used to perform USMD. The efficiency of the anti-vascular effect was evaluated by intravital imaging in order to determine the optimal USMD parameters...
May 4, 2018: ACS Applied Materials & Interfaces
Amrut V Ambardekar, Mary C M Weiser-Evans, Marcella Li, Suneet N Purohit, Muhammad Aftab, T Brett Reece, Karen S Moulton
BACKGROUND: Coronary artery fluid dynamics may be altered because of the nonphysiological flow seen in continuous-flow left ventricular assist devices (CF-LVADs). Our aim was to study the structure and composition of coronary vessels after CF-LVAD. METHODS AND RESULTS: Coronary arteries were collected from patients with heart failure (HF) at the time of transplantation, of whom 15 were supported with a CF-LVAD before transplant (HF+LVAD group) and 9 were not (HF non-LVAD group)...
May 2018: Circulation. Heart Failure
Petri Elo, Sina Tadayon, Heidi Liljenbäck, Jarmo Teuho, Meeri Käkelä, Kalle Koskensalo, Virva Saunavaara, Jenni Virta, Tibor Z Veres, Aida Kiviniemi, Antti Saraste, Päivi Marjamäki, Laura Airas, Sirpa Jalkanen, Anne Roivainen
BACKGROUND: Vascular adhesion protein-1 (VAP-1) is an inflammation-inducible endothelial cell molecule and primary amine oxidase that mediates leukocyte entry to sites of inflammation. However, there is limited knowledge of the inflammation-related expression of VAP-1 in the central nervous system (CNS). Therefore, we investigated the expression of VAP-1 within the CNS vasculature in two focal rat models of experimental autoimmune encephalomyelitis (EAE) mimicking multiple sclerosis (MS)...
May 1, 2018: Journal of Neuroinflammation
A Dossanova, V Lozovoy, K Manekenova, Y Lozovaya, M Seidakhmetov, B Dossanov, T Omarov, A Botabaeva, A Shakeeva, Z Baubekov
BACKGROUND: Hypospadias is one of the most common congenital abnormalities in childhood. The number of cases has rapidly grown in recent years. OBJECTIVES: The purpose of this research was to analyze the histological and morphological differences of the foreskin samples taken from boys in three age groups. STUDY DESIGN: A total of 30 Asian patients participated in the research. Clinical materials obtained via biopsy were divided into three age groups...
March 23, 2018: Journal of Pediatric Urology
I V Barinova, N I Kondrikov, I N Voloshchuk, M A Chechneva, N A Shchukina, V A Petrukhin
OBJECTIVE: to investigate the structural and pathogenetic features of pathological placental attachment in the scar after cesarean section. MATERIAL AND METHODS: The investigators explored 12 uteri; 11 of which were removed with placentas at 9 to 38 weeks' gestation (one in the first trimester, three at 18-22 weeks, two at 32-35 weeks, and five at 37-38 weeks); one uterus was removed after an artificial abortion at 12 weeks' gestation in the scar, as well as the scars excised in the first trimester in non-developing (n=4) and progressive (n=2) pregnancies...
2018: Arkhiv Patologii
Koichiro Kamio, Arata Azuma, Kuniko Matsuda, Jiro Usuki, Minoru Inomata, Akemi Morinaga, Takeru Kashiwada, Nobuhiko Nishijima, Shioto Itakura, Nariaki Kokuho, Kenichiro Atsumi, Hiroki Hayashi, Tomoyoshi Yamaguchi, Kazue Fujita, Yoshinobu Saito, Shinji Abe, Kaoru Kubota, Akihiko Gemma
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive disease with high mortality, and the pathogenesis of the disease is still incompletely understood. Although lymphocytes, especially CD4+ CD25+ FoxP3+ regulatory T cells (Tregs), have been implicated in the development of IPF, contradictory results have been reported regarding the contribution of Tregs to fibrosis both in animals and humans. The aim of this study was to investigate whether a specific T cell subset has therapeutic potential in inhibiting bleomycin (BLM)-induced murine pulmonary fibrosis...
April 24, 2018: Respiratory Research
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