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Journal of Environmental Pathology, Toxicology and Oncology

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https://www.readbyqxmd.com/read/29773002/clinicopathological-characteristics-and-prognoses-of-elderly-gastric-cancer-patients-after-r0-resection-a-multicenter-study-in-china
#1
MULTICENTER STUDY
Xinfu Ma, Dengfeng Ren, Jie Kan, Fangchao Zheng, Shuisheng Zhang, Yu Zhang, Yuying Li, Zhibo Liu, Linhan Ye, Guoshuang Shen, Ziyi Wang, Fuxing Zhao, Raees Ahmad, Jiuda Zhao
The number of elderly gastric cancer (GC) patients has been rapidly increasing worldwide, but inadequate understanding regarding elderly GC patients has led to the paucity of appropriate treatment decisions. Our study evaluates clinicopathological characteristics and prognoses of elderly GC patients after R0 resection. Overall, 1877 consecutive GC patients who underwent R0 gastrectomy at four centers were enrolled. We divided patients into three groups according to age: young, middle, and elderly. We then analyzed clinicopathological characteristics and prognoses...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29773001/combined-administration-of-monosodium-glutamate-and-high-sucrose-diet-accelerates-the-induction-of-type-2-diabetes-vascular-dysfunction-and-memory-impairment-in-rats
#2
Kaja Saikrishna, Ringu Kumari, Kantamaneni Chaitanya, Subhankar Biswas, Pawan G Nayak, Jayesh Mudgal, Anoop Kishore, Krishnadas Nandakumar
In this study, we aimed to develop an experimental animal model for type 2 diabetes mellitus (T2DM) using a combination of monosodium glutamate (MSG) and high sucrose diet (HSD). Young male Wistar rats (20-30 g) were injected with MSG (2 or 4 mg/g, i.p. for 4 days). These rats were also fed an HSD, while the control group was fed a starch diet (SFD) for 150 days. Parameters assessed periodically were body weight, feed intake, blood glucose level, and oral glucose tolerance test (OGTT), lipid profile, liver and kidney function tests, skeletal muscle glucose uptake, cognitive function tests, and microvascular changes using isolated rat aorta...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29773000/evaluation-of-antiarthritic-activity-of-butanol-fraction-of-punica-granatum-linn-rind-extract-against-freund-s-complete-adjuvant-induced-arthritis-in-rats
#3
Rupesh Kumar Gautam, Sanjay Sharma, Komal Sharma, Gaurav Gupta
Available conventional drugs produce several side effects; thus, a potent herbal drug is urgently required for the management of rheumatoid arthritis. The present investigation was performed to evaluate the antiarthritic activity of butanol fraction of Punica granatum Linn. rind methanolic extract (PGBF) against Freund's complete adjuvant (FCA)-induced arthritis in rats. An acute toxicity study of butanol fraction was conducted, accompanied by a study of its antiarthritic activity. Chromatography (thin layer chromatography and high-performance thin layer chromatography) analyses were also conducted...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772999/pharmacological-evaluation-of-novel-flavone-from-morus-alba-in-pentylenetetrazole-induced-kindling-and-oxidative-stress
#4
Bin Wang, Gaurav Gupta, Mahaveer Singh, Kasturi Vishwanatha Setty Veerabhadrappa, Anurag Mishra, Gopala Krishna Chinnaboina
The present study was designed to explore the effect of chronic administration of a new flavone [morusflavone, 5,7,4'-trihydroxy-8-(γ,γ-dimethylallyl)-2',3'-(10'-hydroxy-9',10'-dimethyl-cyclohex-8-enyl)-flavone (compound 1)] at doses of 25, 50, and 100 mg/kg, orally (p.o.) to pentylenetetrazole-induced kindling in rats (a model of human epilepsy). Compound 1 and four other compounds were isolated from the stem bark of Morus alba. The structure of compound 1 was elucidated and established using standard spectroscopic techniques, and malondialdehyde (MDA) and glutathione (GSH) were estimated as oxidative markers in brain tissues of rodents...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772998/partially-purified-aqueous-fraction-of-desmodium-gyrans-dc-improves-reverse-cholesterol-transport-and-lipoprotein-metabolism-in-wistar-rats-fed-with-high-fat-diet
#5
M S Indu, Jose Padikkala, Achuthan C Raghavamenon
Apart from the conventional hypolipidemic therapy, plaque regression through enhanced reverse cholesterol transport (RCT) has emerged as novel approach in atherosclerotic drug development. High-density lipoprotein (HDL) mimetics as well as agents that augment the functional HDL and RCT pathways are under intense exploration. Desmodium gyrans (Fabacea) has been shown to have hypolipidemic efficacy, with an HDL-enhancing property. In this study, a chromatographically purified active fraction of D. gyrans (DGMAF) significantly decreased the serum and lipid profiles as well as lipotoxicity in liver in Wistar rats fed with high-fat diet (HFD)...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772997/noncoding-rnas-ncrna-in-hepato-cancer-a-review
#6
REVIEW
Xiujuan Sun, Anshoo Malhotra
Hepatocellular carcinoma (HCC) has emerged as a prominent cancer in both developing and developed countries. Due to the increasing burden of HCC patients, massive resources are expended in their management. Furthermore, there is an urgent need to identify new molecular players that could be targeted to halt cancer development in the early phases. Noncoding RNAs (ncRNAs), which were previously thought to lack value, have the potential to play a pivotal role in the present era of personalized and translational research...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772996/beneficial-protective-effect-of-troxerutin-on-nickel-induced-renal-dysfunction-in-wistar-rats
#7
Perumal Elangovan, Ramalingam Ramakrishnan, Kasinathan Amudha, Abdulkadhar Mohamed Jalaludeen, Gunasekaran Karuna Sagaran, Frankline Rajan Babu, Leelavinothan Pari
Nickel (Ni) is an important environmental toxicant that can cause cancer and cardiovascular disease. The aim of this study was to examine the protective effects of troxerutin (Txn) Ni-induced renal dysfunction in rats using biochemical and histopathological approaches. Nickel (20 mg/kg body weight [b.w.]/day) was administered intraperitoneally (i.p.) for 20 days. Renal damage from Ni toxicity was evident from the changed levels of serum and urinary markers in Ni-treated rats. The levels of lipid peroxidation markers also significantly increased, while the levels of nonenzymatic and enzymatic antioxidants significantly decreased in the kidney of Ni-intoxicated rats...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29431065/dual-roles-of-oxidative-stress-in-metal-carcinogenesis
#8
REVIEW
Jie Xu, James T F Wise, Lei Wang, Kortney Schumann, Zhuo Zhang, Xianglin Shi
It has been well established that environmental and occupational exposure to heavy metal causes cancer in several organs. Although the exact mechanism of heavy metal carcinogenesis remains elusive, metal-generated reactive oxygen species (ROS) are essential. ROS can play two roles in metal carcinogenesis; two stages in the process of metal carcinogenesis differ in the amounts of ROS activating a dual redox-mediated mechanism. In the early stage of metal carcinogenesis, ROS acts in an oncogenic role. However, in the late stage of metal carcinogenesis, ROS plays an antioncogenic role...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29431064/correlative-studies-unravelling-the-possible-mechanism-of-cell-death-in-tideglusib-treated-human-ovarian-teratocarcinoma-derived-pa-1-cells
#9
Theodore Lemuel Mathuram, Vilwanathan Ravikumar, Lisa M Reece, Changam Sheela Sasikumar, Kotturathu Mammen Cherian
This study aims to unravel the use of GSK-3 inhibitors as viable apoptotic inducers for teratocarcinoma-derived ovarian PA-1 cells. MTT assay was carried out to assess inhibitory concentrations of LiCl and TDG. AO/EB staining and Hoechst 33258 staining were employed to assess the damage. Mitochondrial membrane potential (ΔΨm) and ROS generation were assessed with IC50 concentrations of LiCl and TDG. Tumor-related genes (p53, p21, IL-8, TNF-α, MMP-2, Fas-L, Cox-2, and caspase-3) were assessed with 1/4 IC50, 1/2 IC50, IC50 concentrations by semi-quantitative RT- PCR...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29431063/is-it-a-protective-factor-of-helicobacter-pylori-infection-in-overall-survival-of-all-gastric-cancer-evidence-from-meta-analysis
#10
Fangchao Zheng, Zhihua Sun, Jie Kan, Jiangxia Yin, Feng Du, Guoshuang Shen, Ziyi Wang, Dengfeng Ren, Xiaqing Bao, Jiuda Zhao
Purpose - We aimed to assess whether Helicobacter pylori infection influences prognosis in gastric cancer patients (GC). Methods - We systematically searched MEDLINE, PubMed, EBSCO, EMBASE, and the Cochrane Library (CENTRAL) Register from inception to June 1, 2017. Overall survival (mean OS) or disease-free survival (mean DFS) in GC patients were calculated using the hazard ratio (HR) and 95% confidence intervals (95% CIs). Results - In total, 19 articles with 4,321 GC patients were enrolled. Helicobacter pylori infection is associated with longer OS (HR 0...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29431062/the-hepatoprotective-effect-of-clidemia-hirta-against-carbon-tetrachloride-ccl4-induced-oxidative-stress-and-hepatic-damage-in-mice
#11
Nurul Amzar, Mohammad Iqbal
Liver diseases still represents a major health burden worldwide. Moreover, medicinal plants have gained popularity in the treatment of several diseases, including liver disease. Clidemia hirta possesses many medicinal properties for healing several diseases and for health maintenance. However, the hepatoprotective effects and antioxidative potential of C. hirta have not been fully investigated. In the present study, we evaluated the hepatoprotective and antioxidative potential of C. hirta against carbon tetrachloride (CCl4)-induced liver injuries and oxidative damage in a murine model...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29431061/oral-insulin-current-status-challenges-and-future-perspectives
#12
Dinesh Kumar Chellappan, Yap Yenese, Chew Chian Wei, Jestin Chellian, Gaurav Gupta
Oral delivery of insulin is one of the most promising and anticipated areas in the treatment of diabetes, primarily because it may significantly improve the quality of life of diabetics who receive insulin regularly. Several problems have been reported regarding the subcutaneous delivery of insulin, ranging from cardiovascular complications to weight gain. One of the approaches to overcoming these issues is to administer insulin through the oral route. However, there are several challenges in developing an oral route for insulin delivery; insulin has extremely poor bioavailability and a low diffusion rate through the mucus layer...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29431060/dna-damage-in-wistar-rats-exposed-to-organophosphate-pesticide-fenthion
#13
Angélica Goldoni, Cláudia Regina Klauck, Julia Puffal, Patricia Grolli Ardenghi, Luciano Basso da Silva
In the last several decades, exposure to pesticides has become a concern to environmental and human health. Many pesticides are environmentally persistent and are characterized by varying degrees of toxicity and adverse effects, including DNA damage. The present study was undertaken to evaluate the genotoxic potential of organophosphate pesticide fenthion in Wistar rats, as assessed by the comet assay. Adult male Wistar rats were treated with a solution of fenthion at a concentration of 40 mg/kg/day, administered intraperitoneally for 18 consecutive days...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29283339/kai1-cd82-metastasis-suppressor-gene-as-a-therapeutic-target-for-non-small-cell-lung-carcinoma
#14
REVIEW
Venugopal Vinod Prabhu, S Niranjali Devaraj
Lung cancer is the most frequent malignancy and the leading cause of cancer-related death worldwide; it is the second most common cancer, comprising 1.69 million deaths worldwide per year. Among these, 85% of lung cancers are non-small-cell lung carcinoma (NSCLC). Metastasis is common in NSCLC patients and are responsible for most deaths. Kang-Ai 1 (KAI1), a tumor metastasis suppressor gene also known as Cluster of Differentiation 82 (CD82), is a member of the membrane tetraspanin protein family, which are capable of inhibiting the metastatic process in NSCLC...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29283338/aqueous-extract-of-smokeless-tobacco-gutkha-deregulates-tumor-suppressor-and-dna-repair-response-in-a-murine-model-of-smokeless-tobacco-use
#15
Angom Ranjana Devi, Mahuya Sengupta, Yashmin Choudhury
The effect of smokeless tobacco (gutkha) was investigated by treating male and female Swiss Albino mice with an aqueous extract of smokeless tobacco (AEST). AEST was administered at a dose of 25 mg kg-1 body weight per day for different time periods (6, 12, 16, and 24 weeks), and control animals were provided only drinking water without AEST for the same period. Control and AEST-treated mice were observed for different oxidative stress parameters, nitric oxide (NO) release, and myeloperoxidase (MPO) release, and they were evaluated for alterations in tumor suppressor and DNA repair responses in the liver and spleen...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29283337/oncocytic-adreno-cortical-tumors-pathological-features-of-16-cases-and-review-of-the-literature
#16
REVIEW
Yesim Ertan, Asuman Argon, Murat Özdemir, Banu Pınar Sarer Yürekli, Zafer Dökümcü, Özer Makay
Oncocytic neoplasms of the adrenal gland are extremely rare tumors. These tumors differ from their nononcocytic counterparts in some respects. The aim of this study was to review and discuss the clinical, histological, and immunohistochemical features of as well as the prognosis for these rare tumors. In total, 16 cases diagnosed as adrenocortical oncocytic neoplasms between January 2011 and December 2016 were included in the study. The demographic data, gross characteristics, histological data, and immunohistochemical data (Chromogranin-A, Synaptophysin, α-Inhibin, Melan-A, Ki67, PHH3) were reevaluated...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29283336/photothermal-therapy-employing-gold-nanoparticle-loaded-macrophages-as-delivery-vehicles-comparing-the-efficiency-of-nanoshells-versus-nanorods
#17
COMPARATIVE STUDY
Catherine Christie, Steen J Madsen, Qian Peng, Henry Hirschberg
Macrophages (Ma) loaded with gold based nanoparticles, which convert near infrared light to heat, have been studied as targeted transport vectors for photothermal therapy (PTT) of tumors. The purpose of the experiments reported here was to compare the efficacy of gold-silica nanoshells (AuNS) and gold nanorods (AuNR) in macrophage mediated PTT. PTT efficacy was evaluated in hybrid glioma spheroids consisting of human glioma cells and either AuNS or AuNR loaded Ma, designated MaNS and MaNR respectivly. Spheroids were irradiated for 10 min...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29283335/molecular-mechanisms-of-uva-induced-melanoma
#18
REVIEW
Xiao Pudroma, Gongsang Duoji, Mantas Grigalavicius, Duan Jie, Asta Juzeniene
Cutaneous melanoma is a deadly skin cancer, resulting from malignant transformation of melanocytes. Long-wave ultraviolet radiation (315-400 nm) is able to damage DNA, cause mutations, and induce melanoma. However, the exact mechanisms of UVA-induced cutaneous melanoma remain a matter of debate. In this review, we give a brief characterization of the most important elements in the photobiology of UVA in melanomagenesis.
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29283334/relationship-between-topoisomerase-ii-alpha-overexpression-and-prognosis-in-chinese-gastric-cancer-patients
#19
Fangchao Zheng, Jiuda Zhao, Feng Du, Junhui Zhao, Guoshuang Shen, Fei Ma, Xinfu Ma, Li Dong, Wei Ma, Cunfang Shen, Shuyan Wang, Jinhua Ma, Yang Luo, Ziyi Wang, Binghe Xu
The aim of this study was to investigate topoisomerase II alpha (TOP2α) overexpression and its association with clinicopathological features and prognosis in gastric cancer (GC) patients. All selected GC patients at Affiliated Hospital of Qinghai University and Cancer Hospital, Chinese Academy of Medical Sciences, between December 2009 and December 2011, had formalin-fixed and paraffin-embedded tumor tissues. The patients received a telephone follow-up or in-/outpatient review, and their clinicopathological features and prognoses were analyzed...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29283333/neurosteroids-and-ischemic-stroke-progesterone-a-promising-agent-in-reducing-the-brain-injury-in-ischemic-stroke
#20
REVIEW
Syed Suhail Andrabi, Suhel Parvez, Heena Tabassum
Progesterone (P4), a well-known neurosteroid, is produced by ovaries and placenta in females and by adrenal glands in both sexes. Progesterone is also synthesized by central nervous system (CNS) tissues to perform various vital neurological functions in the brain. Apart from performing crucial reproductive functions, it also plays a pivotal role in neurogenesis, regeneration, cognition, mood, inflammation, and myelination in the CNS. A substantial body of experimental evidence from animal models documents the neuroprotective role of P4 in various CNS injury models, including ischemic stroke...
2017: Journal of Environmental Pathology, Toxicology and Oncology
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