Results 51 to 60 of about 9,430 (216)

H2‐dependent modulation of tetrahydromethanopterin S‐methyltransferase (Mtr complex) activity by the small protein MtrR in Methanosarcina mazei

The FEBS Journal, EarlyView.
Small protein MtrR is a regulator of the Mtr methyltransferase complex in Methanosarcina mazei. It binds specifically to the MtrA subunit and modulates Mtr activity in response to hydrogen (H2) availability. Deleting mtrR impairs growth in the presence but not absence of H2, indicating its role in directing methyl transfer toward an energy‐conserving ...
Tim Habenicht, Bjarne Hastedt, Liam Cassidy, Claudia Kießling, Andreas Tholey, Jan M. Schuller, Ruth A. Schmitz   +6 more
wiley   +1 more source

Heme ligation and redox chemistry in two bacterial thiosulfate dehydrogenase (TsdA) enzyme [PDF]

, 2019
Thiosulfate dehydrogenases (TsdA) are bidirectional bacterial di-heme enzymes that catalyze the interconversion of tetrathionate and thiosulfate at measurable rates in both directions.
Bradley, Justin M., Butt, Julea N., Cheesman, Myles, Dahl, Christiane, Jenner, Leon P., Kurth, Julia M., Reisner, Erwin, Sokol, Katarzyna P., van Helmont, Sebastian   +8 more
core   +1 more source

Poplar miR1447 Is a Negative Regulator of Disease Resistance Through the SA‐Dependent Pathway

Plant Biotechnology Journal, EarlyView.
ABSTRACT Although microRNA1447 (miR1447) regulates poplar responses to abiotic stress and pest infestation, how miR1447 regulates poplar immunity against pathogens and its underlying molecular mechanisms remain to be elucidated. Here, we revealed that miR1447 functioned as a negative regulator of poplar disease resistance against fungal and bacterial ...
Dandan Xiao, Kaijing Rong, Tiantian Fu, Yicheng Li, Chun Wang, Ke Zhou, Ruen Yu, Xiaoqian Yang, Yuzhang Yang, Yuanyuan Wang, Yanwei Wang, Yonglin Wang   +11 more
wiley   +1 more source

Recurrent hemorrhoidal disease after stapled prolassectomy: hypothesis on predictive factors and surgical management [PDF]

, 2013
INTRODUCTION The surgical procedure of stapled haemorrhoidopexy is now considered safe and its safety is improving with experience and technical upgrading.
Panarese, Alessandra
core  

Bilateral Deep Peroneal Nerve Paralysis Following Kerosene Self-Injection into External Hemorrhoids [PDF]

Hemorrhoids tissues containing veins were located in the wall of the rectum and anus and may develop inflammation, bleeding, or thrombosis or may become enlarged and protrude outside the canal which, in this case, are called external hemorrhoids [1].
ابوالحسنی, حسن, رستمی, خلیل, فرزانه, اسماعیل   +2 more
core   +1 more source

Microglial Fkbp5 Impairs Post‐Stroke Vascular Integrity and Regeneration by Promoting Yap1‐Mediated Glycolysis and Oxidative Phosphorylation

Advanced Science, Volume 13, Issue 16, 18 March 2026.
A post‐stroke perivascular niche of microglia characterized by low expression of M2 markers and elevated glycolysis, oxidative phosphorylation (OXPHOS), and phagocytic activity is identified, which is termed stroke‐activated vascular‐associated microglia (stroke‐VAM).
Yanan Li, Yanmei Qiu, Yunlei Yang, Yanhao Wei, Haokun Peng, Longhai Zeng, Pengcheng Li, Rentang Bi, Bo Hu   +8 more
wiley   +1 more source

Efficacy, cure rate, recurrence rate and complications of Rubber band ligation for treatment of different grades of hemorrhoids in Koya - Erbil - Kurdistan Iraq, Retrospective Study

Zanco Journal of Medical Sciences
Background and objective: Hemorrhoids defined as lax fibrovascular cushions which are prolapsed, two main types of hemorrhoids are available, internal and external types, Dietary fiber deficiency, prolonged straining and prolonged use of the toilet ...
Saman Taher Barzinjy, Waleed Bakir, Ameer Mohammed ameen Saleh   +2 more
doaj   +1 more source

Comparative Study of Sulfated Polysaccharides From Ulva Lactuca Grown in Tunisia and Morocco: in Vitro Antioxidant Activity and in Vivo Anti‐Inflammatory and Anti‐Ulcer Effects

Chemistry &Biodiversity, Volume 23, Issue 3, March 2026.
ABSTRACT This study presents a comparative analysis of sulfated polysaccharides extracted from Ulva lactuca collected in Tunisia (PSUT) and Morocco (PSUM). FTIR confirmed the presence of sulfate groups, while GC‐MS identified diverse sugar components. Both polysaccharides showed strong antioxidant activity, with DPPH and ABTS radical scavenging rates ...
Nourhene Kharrat, Yasmine Touhamia, Rihab Ben Abdallah kolsi, Khaled Hamden, Rafik Ben Said, Touria Ould Bel Lahcen, Hichem Ben Salah, Noureddine Allouche   +7 more
wiley   +1 more source

Haemorrhoids [PDF]

, 2016
Clinical information monographHaemorrhoids are vascular-rich connective tissue cushions located within the anal canal. Internal haemorrhoids lie proximal to the dentate line in the anal canal, whereas external haemorrhoids are located distal to the ...
Steele, RJC, THAHA, MA
core  

Vacuum inversion and securing of distal colonic pseudodiverticula with novel spiked O-rings [PDF]

, 2015
Diverticular disease is increasingly prevalent in Western societies and is associated with significant morbidity. OBJECTIVE: Two-stage endoscopic device development for inversion and secured ligation of colonic diverticula; first, human cadaver studies
AGRUSA, Antonino, Amato, G, Birsan, T, CASSATA, Giovanni, Gasche C., Granic, E, Lang, S, Noda, W, Puleio, R, ROMANO, Giorgio, Silberhumer, G   +10 more
core   +1 more source