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https://www.readbyqxmd.com/read/29691647/ecological-drivers-and-reproductive-consequences-of-non-kin-cooperation-by-ant-queens
#1
Brian R Haney, Jennifer H Fewell
The fitness consequences of joining a group are highly dependent on ecological context, especially for non-kin. To assess the relationships between cooperation and environment, we examined variation in colony reproductive success for a harvester ant species that nests either solitarily or with multiple, unrelated queens, a social strategy known as primary polygyny. We measured the reproductive investment of colonies of solitary versus social nesting types at two sites, one with primarily single-queen colonies, and the other with a majority of polygynous nests...
April 24, 2018: Oecologia
https://www.readbyqxmd.com/read/29691312/effect-of-interactions-among-individuals-on-the-chemotaxis-behaviours-of-caenorhabditis-elegans
#2
Toshiki Yoshimizu, Hisashi Shidara, Keita Ashida, Kohji Hotta, Kotaro Oka
In many species, individual social animals interact with others in their group and change their collective behaviours. Meanwhile, for the solitary nematode Caenorhabditis elegans strain, N2, previous research suggests that individuals can change the behaviour of other worms via pheromones and mechanosensory interactions. Pheromones, especially, affect foraging behaviour, so that the chemotactic behaviours of individuals in a group (population) can be modulated by interactions with other individuals in the population...
April 24, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29690271/phenacorhamdia-cabocla-a-new-heptapterid-from-the-parna%C3%A3-ba-river-basin-northeastern-brazil-siluriformes-heptapteridae
#3
Yuri Gomes Ponce de Carvalho Rocha, Telton Pedro Anselmo Ramos, Robson Tamar da Costa Ramos
Phenacorhamdia Dahl, 1961 comprises 11 valid species of small demersal and solitary catfishes which occur mainly along riverbeds and are widely distributed throughout rivers of South America. The genus is included within the Nemuroglanis subclade, and species of Phenacorhamdia can be separated from other heptapterid catfishes through external and internal characters. Diagnostic characters include a prognathous mouth, first ray of dorsal and pectoral fins flexible, eight or nine branched rays in the lower lobe of caudal fin, and optic foramen reduced...
March 28, 2018: Zootaxa
https://www.readbyqxmd.com/read/29690217/additions-to-the-knowledge-of-solitary-wasps-hymenoptera-vespidae-eumeninae-with-description-of-eight-new-species
#4
Marco Selis
New additions to the knowledge of the subfamily Eumeninae are provided. Eight new species of Eumeninae are described: Antepipona gibbosissima Selis, sp. nov. (Namibia: Warmbad); Antepipona tricolorata Selis, sp. nov. (India: Sikkim); Ectopioglossa luzonica Selis, sp. nov. (Philippines: Luzon); Lissodynerus unicus Selis, sp. nov. (India: Sikkim); Pararrhynchium aurigaster Selis, sp. nov. (Malaysia: Johor); Symmorphus (Symmorphus) incisus Selis, sp. nov. (India: Sikkim); Symmorphus (Symmorphus) palawanensis Selis, sp...
April 5, 2018: Zootaxa
https://www.readbyqxmd.com/read/29689795/taxonomic-review-of-the-subgenus-andrena-poecilandrena-hymenoptera-andrenidae-in-israel-and-the-levant
#5
Gideon Pisanty, Erwin Scheuchl, Netta Dorchin
Andrena (Poecilandrena) Hedicke is a subgenus of small solitary bees, with the greatest diversity in the Eastern Mediterranean Region-an important but understudied biodiversity hotspot for bees. We studied Andrena (Poecilandrena) collected mostly in Israel and the West Bank, and make several additions to the regional fauna. We provide the first comprehensive review of Andrena (Poecilandrena) species currently known from Israel, the West Bank, Jordan, Lebanon and Syria, including diagnostic keys to females and males, descriptions of new species and unknown sexes, and detailed information for each taxon regarding distribution, phenology and flower visitation...
January 18, 2018: Zootaxa
https://www.readbyqxmd.com/read/29689399/primary-focal-intracranial-leptomeningeal-glioma-pfilg-a-case-report-and-review-of-literature
#6
Vinayak Narayan, Amey Savardekar, Nasser Mohammed, Devi Prasad Patra, Maria-Magdalena Georgescu, Anil Nanda
BACKGROUND: Primary focal intracranial leptomeningeal glioma [PFILG] is considered as a rare solitary glial tumor arising from the leptomeninges without brain attachment or evidence of primary neoplasm elsewhere within the neuraxis. We herein report a case of PFILG in left parietal location with a concise review on its clinico-radiological, histopathological and management characteristics. CASE PRESENTATION: A 75 year old lady presented with focal motor seizures involving right upper limb with associated occasional headache...
April 21, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29689243/whole-exome-sequencing-identifies-unique-mutations-and-copy-number-losses-in-calcifying-fibrous-tumor-of-the-pleura-report-of-three-cases-and-review-of-the-literature
#7
Mitra Mehrad, William A LaFramboise, Maureen A Lyons, Humberto E Trejo Bittar, Samuel A Yousem
Calcifying fibrous tumor of the pleura (CFTP) is a rare mesenchymal tumor of unknown pathogenesis. The diagnosis often requires exclusion of other common entities. Our aim was to determine if genomic changes were associated with CFTP that could contribute to mechanisms underlying tumorigenesis. Three cases of CFTP with their corresponding uninvolved control lung tissue were identified. Two patients were male, and one was female (age range: 21-32years). Tumors were multifocal in two cases and solitary in one...
April 21, 2018: Human Pathology
https://www.readbyqxmd.com/read/29688946/lung-metastases-of-intracranial-atypical-meningioma-diagnosed-on-posttherapeutic-imaging-after-177lu-dotatate-therapy
#8
Philipp Backhaus, Sebastian Huss, Volkan Kösek, Matthias Weckesser, Kambiz Rahbar
Meningiomas are typically benign solitary intracranial tumors. Atypical (World Health Organization [WHO] grade II) or malignant/anaplastic (WHO grade III) meningiomas are seldom, and distant metastases occur only in rare exceptions. We present a case of a 54-year-old male patient with atypical (WHO grade II) meningioma who underwent 1 cycle of peptide receptor radionuclide therapy. Previous imaging studies were confined to the head, but posttherapeutic whole-body Lu-DOTATATE scintigraphy revealed thoracic uptake arising from previously undetected pulmonic meningioma metastases...
April 23, 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29688155/radiation-segmentectomy-potential-curative-therapy-for-early-hepatocellular-carcinoma
#9
Robert J Lewandowski, Ahmed Gabr, Nadine Abouchaleh, Rehan Ali, Ali Al Asadi, Ronald A Mora, Laura Kulik, Daniel Ganger, Kush Desai, Bartley Thornburg, Samdeep Mouli, Ryan Hickey, Juan Carlos Caicedo, Michael Abecassis, Ahsun Riaz, Riad Salem
Purpose To report long-term outcomes of radiation segmentectomy (RS) for early hepatocellular carcinoma (HCC). The authors hypothesized that outcomes are comparable to curative treatments for patients with solitary HCC less than or equal to 5 cm and preserved liver function. Materials and Methods This retrospective study included 70 patients (median age, 71 years; range, 22-96 years) with solitary HCC less than or equal to 5 cm not amenable to percutaneous ablation who underwent RS (dose of >190 Gy) between 2003 and 2016...
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29686880/a-rare-manifestation-of-severe-critical-limb-ischemia-caused-by-solitary-aorto-iliac-occlusive-disease
#10
Daisuke Miyawaki, Tetsuya Nomura, Yu Sakaue, Daisuke Ueno, Yusuke Hori, Kenichi Yoshioka, Hiroshi Kubota, Masakazu Kikai, Natsuya Keira, Tetsuya Tatsumi
Currently, there are more opportunities to treat patients complicated with critical limb ischemia (CLI), which is a very dismal medical condition associated with a high risk of major amputation, disability and death. Because CLI is usually caused by multi-level occlusive atherosclerotic disease, the condition of CLI induced by aorto-iliac occlusive disease (AIOD) alone is thought to be a rare pathological entity. We encountered a patient with severe CLI caused by solitary AIOD. Three vascular access routes were established and stiff guidewires retrogradely passed the occluded arteries on both sides...
April 2018: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29686820/biofeedback-efficacy-to-improve-clinical-symptoms-and-endoscopic-signs-of-solitary-rectal-ulcer-syndrome
#11
Mojgan Forootan, Masood Shekarchizadeh, Hamedreza Farmanara, Ahmad Reza Shekarchizadeh Esfahani, Mansooreh Shekarchizadeh Esfahani
Solitary rectal ulcer syndrome (SRUS) is often resistant to medical and surgical treatment. This study assessed the effect of biofeedback in decreasing the symptoms and the healing of endoscopic signs in SRUS patients. Before starting the treatment, endoscopy and colorectal manometry was performed to evaluate dyssynergic defecation. Patients were followed every four weeks, and during each visit their response to treatment was evaluated regarding to manometry pattern. After at least 50% improvement in manometry parameters, recipients underwent rectosigmoidoscopy...
January 12, 2018: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29684947/-a-case-of-solitary-metastasis-of-renal-cell-carcinoma-to-the-thyroid-gland
#12
Yuki Yokoi, Kengo Yasuda, Hideyuki Terao, Shinpei Sugiura, Kazuo Kitami, Yuzo Minegishi, Shunichi Gondo
A case of solitary metastasis of renal cell carcinoma to the thyroid gland is presented. The patient was a 82-year-old man found to have an abnormal mass in his neck. He had a past history of renal clear cell carcinoma of the left kidney (pT1aN0M0, G1>2, alveolar type, clear cell subtype), which had been resected 12 years previously. Ultrasonography revealed a tumor mass in the right hemithyroid gland. This time fine needle biopsy of the thyroid tumor suggested metastatic thyroid carcinoma. Right hemithyroidectomy was performed last year...
February 2018: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/29682811/upregulation-of-hypothalamic-arginine-vasopressin-by-peripherally-administered-furosemide-in-transgenic-rats-expressing-arginine-vasopressin-enhanced-green-fluorescent-protein
#13
Hiromichi Ueno, Mitsuhiro Yoshimura, Kentaro Tanaka, Haruki Nishimura, Kazuaki Nishimura, Satomi Sonoda, Yasuhito Motojima, Reiko Saito, Takashi Maruyama, Tetsu Miyamoto, Ryota Serino, Masahito Tamura, Tatsushi Onaka, Yutaka Otsuji, Yoichi Ueta
Furosemide, which is used worldwide as a diuretic agent, inhibits sodium reabsorption in the Henle's loop, resulting in diuresis and natriuresis. Arginine vasopressin (AVP) is synthesized in the supraoptic nucleus (SON), paraventricular nucleus (PVN), and suprachiasmatic nucleus (SCN) of the hypothalamus. The synthesis AVP in the magnocellular neurons of SON and PVN physiologically regulated by plasma osmolality and blood volume and contributed water homeostasis by increasing water reabsorption in the collecting duct...
April 22, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29682612/salvage-pelvic-lymph-node-dissection-after-fluciclovine-positron-emission-tomography-computed-tomography-detected-prostate-cancer-recurrence
#14
Madeline Cancian, Jorge Pereira, Joseph F Renzulli
Background: Multiple new systemic agents have been targeted to metastatic prostate cancer, with decreased progression of disease but no cure. Surgical management of metastatic disease has been gaining interest, primarily in the setting of high-risk prostatectomies. However, metastasis-directed surgical intervention has been employed in rare scenarios, especially in oligometastatic disease. We report here on a salvage robot-assisted pelvic lymph node dissection for a solitary metastatic site. Case Presentation: A 63-year-old Hispanic man who was initially treated with prostatectomy for intermediate risk cancer developed rapid biochemical recurrence...
2018: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29682464/gastric-inflammatory-fibroid-polyp-tumor-with-acute-intestinal-obstruction-vanek-s-tumor-can-mimick-a-giant-gastrointestinal-stromal-tumor-or-a-gastric-lymphoma
#15
Francesco Fleres, Carmelo Mazzeo, Antonio Ieni, Maurizio Rossitto, Eugenio Cucinotta
An inflammatory fibroid polyp (IFP) is a solitary rare benign neoplasm of the gastrointestinal tract, frequently located in the gastric antrum. IFPs account for about 0.1% of all gastric polyps. We report a case of a giant gastric inflammatory polyp of 2.5 cm × 7 cm that determines a gastric outlet obstruction called "ball valve syndrome" mimicking a gastrointestinal stromal tumor (GIST) and a gastric lymphoma, with an intestinal obstruction of high origin. Therefore, due to acute presentation we have decided to submit the patient to a subtotal gastrectomy...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29682391/a-case-of-prostatic-carcinoma-manifesting-as-cutaneous-facial-nodule
#16
Israel Antonio Esquivel-Pinto, Bertha Torres-Alvarez, Ramiro Jetzabel Gómez-Villa, Juan Pablo Castanedo-Cázares
Prostate cancer is the second most frequently diagnosed cancer worldwide and the fifth most common cause of cancer deaths among men. Cutaneous metastasis is an uncommon phenomenon in prostatic cancer, occurring in 0.06-0.3% of cases. Case Presentation. A 56-year-old man presented to our outpatient clinic with a one-month history of a 1.5 cm in diameter, solitary, asymptomatic, purple nodule located on his upper right cheek. After biopsy, prostatic cancer metastasis was diagnosed. Discussion. A literature review revealed 59 articles documenting 71 cases of this diagnosis...
2018: Case Reports in Urology
https://www.readbyqxmd.com/read/29682137/solitary-fibrous-tumor-of-the-ischioanal-fossa-a-multidisciplinary-approach-to-management-with-radiologic-pathologic-correlation
#17
A Bhat, L J Layfield, S O Tewari, A H Gaballah, R Davis, Z Wu
Solitary fibrous tumors are primary mesenchymal tumors, which may occur in any part of the body. Overall, these tumors are considered to have intermediate malignant potential with 5- and 10-year metastasis-free and overall disease-specific survival rates of 74% and 55%, and 89% and 73%, respectively (Demicco et al, 2012). Herein we present an unusual case of solitary fibrous tumors involving the ischioanal fossa in a 19-year-old woman with radiologic-pathologic correlation. This case was complicated by extensive tumor vascularity and was thus managed with preoperative embolization followed by en bloc surgical resection...
April 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29682136/metastatic-cervical-paravertebral-solitary-fibrous-tumor-detected-by-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#18
Hoiwan Cheung, Courtney Lawhn-Heath, Giselle Lopez, Maya Vella, Carina Mari Aparici
Solitary fibrous tumor/hemangiopericytomas (SFT/HPC) are soft tissue tumors that can arising from the abomen, pleura, head and neck, or extremities. We report an unusual case of recurrent hemangiopericytoma in a 67-year-old female presenting with a painless and palpable mass within her right posterior neck. Eight years after initial resection of the mass, a follow-up MRI showed multiple enlarging calvarial lesions. A whole body FDG-PET/CT revealed not only hypermetabolic calvarial lesions but also numerous hypermetabolic axillary node and osseous metastases...
April 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29682031/solitary-fibrous-tumors-of-the-orbit-and-central-nervous-system-a-case-series-analysis
#19
Marisa Brum, Hipólito Nzwalo, Edson Oliveira, Maria Rita Pelejão, Pedro Pereira, João Paulo Farias, José Pimentel
Introduction: Solitary fibrous tumor (SFT) is rarely diagnosed in clinical practice. Since its initial descriptions in the central nervous system (CNS) and the orbits, very few case reports and small case series have expanded their clinical and pathological characterization. We sought to describe a cases series of SFT from a single laboratory of neuropathology belonging to a tertiary university hospital. Methods: Retrospective clinical and histopathological description of eight cases of CNS and orbital SFT diagnosed over a 21-year period of time...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29681701/congenital-benign-intrahepatic-cyst-with-cystobiliary-communication-an-intraoperative-diagnostic-enigma
#20
J S Kishore, Richa Lal, Abhishek Chinya, J B Nijagal Mutt
This manuscript reports a 15-month-old male presenting with a congenital solitary benign intrahepatic cyst, wherein the presence of a cyst with frank bile and a large cystobiliary communication came as an intraoperative enigma. The stepwise approach to diagnosis, management, and review of relevant literature carry a useful message.
April 2018: Journal of Indian Association of Pediatric Surgeons
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