(a.) Of or pertaining to pectin; specifically, designating an acid obtained from ordinary vegetable jelly (pectin) as an amorphous substance, tough and horny when dry, but gelatinous when moist.
Example Sentences:
(1) Pectic substances separation on DEAE-cellulose column.
(2) The mercury-activated enzyme progressively removed the terminal galacturonic acid residues from alpha-(1-->4)-linked galacturonide chains and converted digalacturonic acid, trigalacturonic acid, tetragalacturonic acid and pectic acid into galacturonic acid.
(3) The procedure is shown with pectic substances as an example.
(4) The splitting layer differs from the pectic middle lamella particularly in its insolubility in an incubating medium which removes the wall subunits (EDTA, DMSO, pectinases, cellulases) and its non-reactivity to polysaccharide test involving periodic oxidation (PATAg staining).
(5) This complexity can best be appreciated by considering xyloglucan, a hemicellulose present in the cell wall of both monocots and dicots, and rhamnogalacturonan II (RG-II) and rhamnogalacturonan I (RG-I), two structurally unrelated pectic polysaccharides.
(6) In the primary walls of the various types of cells under study and in the inner part (close to the cytoplasm) of the wall of the epidermal cells, the linkage of the pectic substances would be mainly by covalent bonds.
(7) that cause soft-rot diseases in plants produce a variety of extracellular pectic enzymes.
(8) Past workers have suggested pectic enzyme involvement in the invasion of legumes by Rhizobium.
(9) The main fraction (67%) represents a pectic polysaccharide mainly composed of galacturonic acid besides rhamnose, arabinose and galactose.
(10) Analysis of the resulting mutants, CUCPB5008 (Pel+ Peh-) and CUCPB5009 (Pel- Peh-), indicated that exoPG can contribute significantly to bacterial utilization of polygalacturonate and the induction of pectate lyase in the presence of extracellular pectic polymers.
(11) Serum amyloid P component (SAP), a normal human plasma glycoprotein, was found in a solid phase ELISA to have Ca2+-dependent binding for keyhole limpet haemocyanin (KLH), pectic acid, trinitrophenylated (TNP) macromolecules, and plastic surfaces.
(12) One of the anti-complementary pectic polysaccharides (AR-2IIa) isolated from the root of Angelica acutiloba Kitagawa gives the "ramified" region (PG-1a,rhamnogalacturonan with neutral side-chains) in addition to oligogalacturonides on digestion with endo-alpha-D-(1--4)-polygalacturonase.
(13) High concentrations of phosphate are shown to be necessary for pectic enzyme formation on solid media.
(14) The possible relationship between pectic polysaccharide-xylan-phenolic complexes and the onset of lignification in maturing tissues is discussed.
(15) Contrary to current views, the actual pectic middle lamella does not seem to be directly engaged in the initiation of the aerating system, which conversely appears subordinate to the presence of specialized substructures within the wall.
(16) All pectolytic cultures produced pectin esterase and polygalacturonase but no pectic acid trans-eliminase when grown in nutrient glucose broth.
(17) In this paper, we report the effect of pectic substances and D-galacturonic acid, the main constituent of pectic substances, on activated hyaluronidase and histamine release from mast cells.
(18) In addition to soluble antigens, cellulose subunits and pectic substances, two major plant cell wall components, were found to be highly preserved in microwave-irradiated tobacco plant tissue.
(19) Hydrolysis of substrate occurred in a random fashion and the enzyme was 50% more active towards acid soluble pectic acid (ASPA) than towards sodium polypectate.
(20) The increased synthetic activity was due to the release and increased activity of a glucose oxidase enzyme apparently attached to plant cell-wall material and liberated by the action of pectic enzymes of the bacterium.
Peptic
Definition:
(a.) Relating to digestion; promoting digestion; digestive; as, peptic sauces.
(a.) Able to digest.
(a.) Pertaining to pepsin; resembling pepsin in its power of digesting or dissolving albuminous matter; containing or yielding pepsin, or a body of like properties; as, the peptic glands.
(n.) An agent that promotes digestion.
(n.) The digestive organs.
Example Sentences:
(1) Useful studies on the relationship between these acute lesions and peptic ulceration are rare.
(2) The pathomechanism, how C. pylori facilitates the development of peptic ulcer is since hypothetical.
(3) A prospective randomized trial involving 64 patients with bleeding peptic ulcers was performed to assess the efficacy of two modalities of injection therapy.
(4) The results of a prospective inquiry into the aspirin taking habits of a consecutive series of 118 patients admitted to a large general hospital with acute perforation of peptic ulcer are presented.
(5) All of them had a history of nephrolithiasis and peptic ulcers.
(6) Pain relieved by antacids, age above 40 years, previous peptic ulcer disease, male sex, symptoms provoked by berries, and night pain relieved by antacids and food were found to predict organic dyspepsia with a sensitivity and specificity of approximately 70%, when applied on the observed material.
(7) Prostaglandin analogues, because of their oral effectiveness and duration of action, may have therapeutic value in peptic ulcer disease.
(8) Oral administration of PGE methyl analogues may be an effective mode of therapy in peptic ulcer disease.
(9) Results of medical therapy of reflux oesophagitis are disappointing, especially compared to the success obtained in peptic ulcer disease.
(10) Smoking, which predisposes to peptic ulceration, also appears to reduce mucosal prostaglandin synthesis.
(11) The family physician who sees many children with vague abdominal pain must include peptic ulcer disease in the differential diagnosis.
(12) The tumour produced insulin and gastrin with resulting hypoglycaemia and recurrent peptic ulceration which were unresponsive to other drugs.
(13) The results of 96 simultaneous operations for peptic ulcer are discussed.
(14) Important problems currently under study or requiring investigation for better understanding of the pathophysiology and management are reviewed under three major categories: acute peptic erosions and ulcers, gastric ulcer, and duodenal ulcer.
(15) Although uncommon in children peptic ulcers should be considered in patients with recurrent abdominal pain.
(16) Persistent reflux causing cycles of mucosal damage followed by healing may eventually lead to end-stage disease, with development of peptic stricture.
(17) Omeprazole 40 mg therefore was found to produce rapid healing and symptom relief in Asian patients with H2-antagonist-resistant peptic ulcers.
(18) Evidence is provided for the concept of enlarged spasms (phenomenon of the spastic dominant) common to peptic ulcer.
(19) Peptic ulcers were identified in 14 patients, mostly those with new dyspepsia, during the study period.
(20) The serum hCGLS levels in 54 patients with gastrointestinal cancer were significantly higher, when compared with the findings in 19 healthy volunteers and 10 peptic ulcer patients.