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The Helicobacter pylori have ancestral relation with the family of Proteobacteria, order Campylobacterales, family Helicobacteraceae. It is the first and most important cause of gastric carcinoma along with peptic ulcer and dyspepsia carcinoma. H. pylori is also responsible for mucosa associated with lymphoid tissue (MALT) and Known Hodgkin Lymphoma. It is assessed that patients having H. pylori are a 30% to 40% possibility of evolving gastric ulcer and a 10% to 20% possibility of developing distal gastric cancer. It causes chronic inflammation and significantly increases the risk of duodenal, gastric ulcer, and cancer. It is the second leading cause of cancer-related deaths in the world. In the current study, a total of 210 gastric biopsy specimens were collected from the patient with a history of gastritis from Chughtai Lab in 10% NBF. All tissue size was measured and gross examined these samples were processed in an automated tissue processor Tissue-Tek VIP VI (Japan). After processing, the embedding of tissues was done in paraffin wax at Tissue-Tek TEC. 2- 3 µm sections were prepared using rotary microtome Leica 201 USA. A comparison was carried out between H&E and IHC. Helicobacter pylori were detected in 88 cases out of 200 while 09 samples were either poorly preserved or autolyzed that's why further processing and diagnosis were not possible. One case was diagnosed as poorly differentiated adenocarcinoma; the sample was collected from a female patient of 56 years. Out of 88 positive cases, 66 (75%) were initially screened as positive for H.pyloriby H&E staining due to the presence of mild or moderate colonization while the remaining 25% cases were negative by H&E staining but with suspicion of neutrophils and lymphoid aggregates. All 88 cases were further confirmed by IHC. Our findings confirmed that IHC is a batter reliable and more accurate method in the diagnosis of H.pylori and it should be considered the gold standard. [ABSTRACT FROM AUTHOR]

Abstract: Li-excess layered Li[Li0.2Mn0.54Ni0.13Co0.13]O2 (LMNCO) nanoparticles are facilely synthesized using a surfactant-assisted dispersion method. Ultrathin and conformal oxide coatings are deposited on the surface of individual LMNCO nanoparticle via atomic layer deposition (ALD). The effect of oxide ALD coatings on improving electrochemical performance of LMNCO electrodes is evaluated and optimized via tuning the coating thickness and composition. In addition, we synthesize a novel core–shell structure cathode consisting of Li-excess LMNCO as core and Li-stoichiometric material as shell, and its electrochemical property is optimized by tailoring weight content and composition of shell materials. Finally, electrochemical performance of Li-excess cathode material can be maximized by surface modification with hierarch functional layers composed of 10 wt.% LiCoO2 shell (∼10 nm thick) and 6ZrO2 ALD layers (∼1 nm thick), which delivers very high initial discharge capacities of 296.4, 259.8, 156.6 and 104.2 mAh g−1 at 0.1C, 1C, 5C and 10C, and can retain 184.0 mAh g−1 at 1C after 100 electrochemical cycles. Such remarkably improved cycleabilitiy and rate capability of nanoarchitected Li-excess layered cathode material can be attributed to the synergic effect from hierarchical functional coatings to reduce electrochemical polarization, structural degradation and side reactions during electrochemical cycling. [Copyright &y& Elsevier]

Neutrophil extracellular traps (NETs) are incriminated in several immune and inflammatory diseases including ulcerative colitis (UC). Analysis of colonic tissues for NETs-related markers in UC carries prognostic and therapeutic implications. This work aims to evaluate the immunohistochemical (IHC) expression of NETs-associated-protein arginine deaminase 4 (PAD4) in colonic biopsies from UC patients in comparison to normal colon (NC). Association between PAD4 expression level and histopathologic grade, patient's therapeutic response and other clinicopathological prognostic predictors in UC are determined. This cohort study included biopsies from 42 UC patients and 11 NC controls. Clinicopathological data including patient's age at diagnosis, gender, presenting symptoms, anatomical disease extent, extra-intestinal manifestations, type and response to therapy and surgical interventions were recorded and tabulated. Histopathological grading of disease activity and associated epithelial changes were assessed. PAD4 immunostaining was conducted using Horseradish Peroxidase technique and scored semiquantitatively considering intensity and percentage of nuclear staining of lamina propria inflammatory cells. Appropriate statistical tests were applied. Anti-PAD4 was localized mainly in the nuclei of lamina propria infiltrating neutrophils. It was expressed more significantly in UC (95.2 %) compared to NC (p 0.001). Increased PAD4 expression level was significantly associated with increasing histopathologic grade, anatomical disease extent, lacking response to therapy and subjection to radical surgery (p:0.001, = 0.038, 0.046, 0.046 respectively). Age, gender, presenting symptoms, extra-intestinal manifestations and epithelial changes showed insignificant associations. This study characterizes a subset of UC patients with high histopathological grade of activity, pancolonic involvement, strong/moderate PAD4 expression levels and who are unresponsive to routine medical therapeutic regimens rendering them candidates for radical surgery. In conjunction with histopathological grading, IHC evaluation of PAD4 in UC is recommended to guide patient's selection for targeted therapy using the novel-discovered selective PAD4 inhibitors. [ABSTRACT FROM AUTHOR]