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https://www.readbyqxmd.com/read/29341902/curcumin-potentiates-the-function-of-human-%C3%AE-7-nicotinic-acetylcholine-receptors-expressed-in-sh-ep1-cells
#1
Eslam El Nebrisi, Lina T Al Kury, Keun-Hang Susan Yang, Petrilla Jayaprakash, Frank C Howarth, Nadine Kabbani, Murat Oz
Effects of curcumin, a biologically active ingredient of turmeric, were tested on the Ca2+ transients induced by the activation of α7 subunit of the human nicotinic acetylcholine (α7 nACh) receptor expressed in SH-EP1 cells. Curcumin caused a significant potentiation of choline (1 mM)-induced Ca2+ transients with an EC50 value of 133 nM. The potentiating effect of curcumin was not observed in Ca2+ transients induced by high K+ (60 mM) containing solutions or activation of α4β2 nACh receptors and the extent of curcumin potentiation was not altered in the presence of Ca2+ channel antagonists nifedipine (1 μM), verapamil (1 μM), ω-conotoxin (1 μM), and bepridil (10 μM)...
January 13, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29327527/role-and-relevance-of-blood-pressure-variability-in-hypertension-related-co-morbidities
#2
Ashok Kumar, B C Kalmath, Georgi Abraham, Johann Christopher, Pln Kaparthi, Louie Fischer, Neeta Deshpande, N K Mishra, Praveen Raj, Rajesh Javerani, Ramesh Goyal, Reefa Dsouza, Shashank R Joshi
Despite maintaining mean blood pressure at optimal levels, cardiovascular complications still occur in hypertensive patients. Blood pressure variability (BPV) has been implicated as a prominent factor responsible for incurring this additional risk. In this review we attempted to generate a consensus on the importance of BPV in the hypertension management and to evaluate different therapeutic options available to reduce BPV. Panel comprising of 11 leading experts from India in different areas of clinical practice (including nephrology, diabetes and endocrinology, cardiology, and critical care medicine) was convened...
December 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29326507/effect-of-calcium-channel-blockers-on-gingival-tissues-in-hypertensive-patients-in-lagos-nigeria-a-pilot-study
#3
Kehinde Adesola Umeizudike, Adetokunbo B Olawuyi, Theophilus I Umeizudike, Akinsanya D Olusegun-Joseph, Babawale T Bello
Background: Long-term treatment of common chronic cardiac conditions such as hypertension with calcium channel blockers (CCBs) has long been associated with gingival hyperplasia. This oral side effect may affect esthetics and function, yet often overlooked and therefore underreported among Nigerians. Aim: This study aimed to determine the association of CCBs with gingival overgrowth (GO) in hypertensive patients. Methods: This was a hospital-based, case-control study conducted among 116 hypertensive patients (58 CCB and 58 non-CCB age-matched controls) attending the medical outpatient clinic of a tertiary health institution in Lagos, Nigeria...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29321112/the-evaluation-and-management-of-urolithiasis-in-the-emergency-department-a-review-of-the-literature
#4
REVIEW
Michael Gottlieb, Brit Long, Alex Koyfman
BACKGROUND: Urolithiasis is a common condition in the U.S. Patients frequently present to the emergency department (ED) for care, including analgesia and treatments to facilitate stone passage. OBJECTIVE: With the new evidence concerning the evaluation and treatment of urolithiasis, this review summarizes current literature regarding the ED management of urolithiasis. DISCUSSION: Urolithiasis occurs primarily through supersaturation of urine and commonly presents with flank pain, hematuria, and nausea/vomiting...
January 5, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29316154/lipid-profile-and-cytokines-in-hypertension-of-pregnancy-a-comparison-of-preeclampsia-therapies
#5
Yong Wang, Dandan Shi, Ling Chen
Hypertensive disorders complicating pregnancy can be classified as gestational hypertension, mild preeclampsia, and severe preeclampsia. It is necessary to evaluate and predict the grade in advance. The first study comprised 40 healthy pregnancies, 40 gestational hypertension, 40 mild preeclampsia, and 40 severe preeclampsia cases. The participants' lipid profile and cytokine levels were statistically compared. The efficacy and safety of oral nifedipine (n = 71) and intravenous labetalol (n = 72) for the treatment of severe preeclampsia were evaluated in the next study according to maternal and neonatal outcomes...
January 6, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29314277/erasmus-syndrome-associated-with-an-immune-thrombocytopenic-purpura
#6
Maxime Fouchard, Brigitte Pan Petesch, Claire Abasq-Thomas, Alain Saraux, Laurent Misery, Emilie Brenaut
We report the observation of a 57-year-old patient followed for an Erasmus syndrome (a systemic sclerosis developing secondary to silica exposure) (1) diagnosed in 2002 after being exposed as a dental technician, for whom a severe thrombocytopenia was discovered. He suffered from a pulmonary fibrosis, polyarthralgia, esophageal dysphagia and cutaneous involvement such as finger ulcerations and sclerodactylia. The treatment was made of nifedipine 30mg/day, esomeprazole 20mg/day and bosentan 25 mg twice a day...
January 5, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29305725/gelatin-nano-coating-for-inhibiting-surface-crystallization-of-amorphous-drugs
#7
Rattavut Teerakapibal, Yue Gui, Lian Yu
PURPOSE: Inhibit the fast surface crystallization of amorphous drugs with gelatin nano-coatings. METHODS: The free surface of amorphous films of indomethacin or nifedipine was coated by a gelatin solution (type A or B) and dried. The coating's effect on surface crystallization was evaluated. Coating thickness was estimated from mass change after coating. RESULTS: For indomethacin (weak acid, pKa = 4.5), a gelatin coating of either type deposited at pH 5 and 10 inhibited its fast surface crystal growth...
January 5, 2018: Pharmaceutical Research
https://www.readbyqxmd.com/read/29305361/blue-toe-syndrome-as-a-first-sign-of-systemic-sclerosis
#8
Rugina Neuman, Marike Wabbijn, Samara Guillen, Adriaan Dees
We describe an unusual case of blue toe syndrome as the primary and solitary manifestation of systemic sclerosis. The possible cause was long-term occupational exposure in construction work. Blue toe syndrome is a small vessel disease, characterised by the sudden development of painful, blue discolouration in one or more toes. The most common aetiology is atheroembolic disease; however, it can also appear in several conditions ranging from hypercoagulability disorders to underlying systemic diseases such as vasculitis or autoimmune diseases...
January 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29301136/assessment-of-the-airway-smooth-muscle-relaxant-effect-of-drotaverine
#9
Zoltán Patai, András Guttman, Endre G Mikus
BACKGROUND: Drotaverine, a type 4 cyclic nucleotide phosphodiesterase (PDE4) inhibitor, blocks the degradation of 3',5'-cyclic adenosine monophosphate. However, published receptor binding data showed that drotaverin also binds to the L-type voltage-operated calcium channel (L-VOCC). Based on these molecular mechanisms of action, a direct and indirect (by blocking the constrictor response) relaxant effect on airway smooth muscle can be predicted, which has not yet been assessed. SUMMARY: Accordingly, drotaverine and reference agents were tested both on the histamine-, methacholine-, or KCl-induced contraction response and on precontracted guinea pig tracheal preparations...
January 4, 2018: Pharmacology
https://www.readbyqxmd.com/read/29290915/deanxit-relieves-symptoms-in-a-patient-with-jackhammer-esophagus-a-case-report
#10
Jin-Ying Li, Wen-Huan Zhang, Chun-Ling Huang, Dang Huang, Guo-Wen Zuo, Lie-Xin Liang
Jackhammer (hypercontractile) esophagus presents with dysphagia and chest pain. Current treatments are limited. We describe a 60-year-old man who presented with dysphagia, chest pain and heartburn for a period of 1 year. His workup showed Barrett's esophagus on endoscopy and high-resolution manometry demonstrated jackhammer esophagus with esophagogastric junction outflow obstruction. The patient was treated with proton pump inhibitor and nifedipine but without resolution of his symptoms. He was followed up to assess the efficacy of treatment with deanxit (flupentixol + melitracen)...
December 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29284416/preoperative-medication-use-and-postoperative-delirium-a-systematic-review
#11
Gizat M Kassie, Tuan A Nguyen, Lisa M Kalisch Ellett, Nicole L Pratt, Elizabeth E Roughead
BACKGROUND: Medications are frequently reported as both predisposing factors and inducers of delirium. This review evaluated the available evidence and determined the magnitude of risk of postoperative delirium associated with preoperative medication use. METHODS: A systematic search in Medline and EMBASE was conducted using MeSH terms and keywords for postoperative delirium and medication. Studies which included patients 18 years and older who underwent major surgery were included...
December 29, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/29274391/electrophysiological-characteristics-and-pharmacological-sensitivity-of-two-lines-of-human-induced-pluripotent-stem-cell-derived-cardiomyocytes-coming-from-two-different-suppliers
#12
Sonia Goineau, Vincent Castagné
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are increasingly used as preclinical tool for predicting drug-induced QT prolongation and arrhythmias. This study was conducted to assess the electrophysiological characteristics and the pharmacological sensitivity of two commercialized hiPSC-CMs. The baseline electrophysiological characteristics measured with a multi-electrode array (MEA) technology differ between Cor.4U and iCell2: higher beat rate (+32bpm) and shorter field potential duration (FPD, -201ms) for Cor...
December 20, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/29258478/pregnancy-prescription-medicines-and-the-potential-risk-of-herb-drug-interactions-a-cross-sectional-survey
#13
James S McLay, Naila Izzati, Abdul R Pallivalapila, Ashalatha Shetty, Binita Pande, Craig Rore, Moza Al Hail, Derek Stewart
BACKGROUND: Pregnant women are routinely prescribed medicines while self-medicating with herbal natural products to treat predominantly pregnancy related conditions. The aim of this study was to assess the potential for herb-drug interactions (HDIs) in pregnant women and to explore possible herb-drug interactions and their potential clinical significance. METHODS: A cross-sectional survey of women during early pregnancy or immediately postpartum in North-East Scotland...
December 19, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29249113/-delayed-allergic-reaction-to-amlodipine-with-a-positive-lymphocyte-transformation-test
#14
Olga Patricia Monge-Ortega, Javier Domínguez-Ortega, Miguel González-Muñoz, Rosario Cabañas, Magdalena Lluch-Bernal, Ana Fiandor, Luz Yadira Bravo-Gallego, Santiago Quirce
BACKGROUND: Amlodipine is one of the third generation dihydropyridine calcium channel blockers used for hypertension. Mild, moderate and severe reactions have been reported with calcium channel blockers. Cross-reactivity among these drugs has not been established. CLINICAL REPORT: We have presented the case of a patient who developed a delayed pruritic, and erythematous maculopapular skin exanthema after the intake of amlodipine. A positive lymphocyte transformation test (LTT) confirmed the implication of amlodipine in the reaction and showed positivity to another calcium channel blocker, nifedipine, demonstrating cross reactivity...
October 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29243206/ical-and-ito-mediate-rate-dependent-repolarization-in-rabbit-atrial-myocytes
#15
Jian-Wen Hou, Wei Li, Yu-Dong Fei, Yi-He Chen, Qian Wang, Yue-Peng Wang, Yi-Gang Li
Rate-dependent repolarization (RDR) of action potential (AP) in cardiomyocyte plays a critical role in the genesis of arrhythmias and RDR in atrium has been linked with atrial fibrillation. However, detailed studies focusing on the role of RDR in rabbit atrium are scant. In this study, atrial cells were isolated from rabbit heart and rate-dependent property was explored in single atrial cell to elucidate the underlying mechanism. Our results indicated that rate-dependent prolongation was evident at the action potential duration at 20% (APD20) and 50% (APD50) repolarization but not at 90% repolarization (APD90) under control condition...
December 14, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29241781/nifedipine-cream-versus-sildenafil-cream-for-patients-with-secondary-raynaud-phenomenon-a-randomized-double-blind-controlled-pilot-study
#16
Ximena Wortsman, Pablo Del Barrio-Díaz, Rodrigo Meza-Romero, Christine Poehls-Risco, Cristián Vera-Kellet
No abstract text is available yet for this article.
January 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29238009/segmental-difference-in-vasoreactivity-of-the-human-right-gastroepiploic-artery
#17
Takeshi Kinoshita, Masashi Tawa, Tomoaki Suzuki, Tohru Asai, Tomio Okamura
BACKGROUND: The gastroepiploic artery (GEA) plays an important role in the era of multiple arterial revascularization, but spasm is a major matter of concern. The internal thoracic artery has been shown to have a strong tendency to spasm in its distal bifurcating part, whereas the segmental difference in vasoreactivity of the GEA has never been performed.Methods and Results:The full length of the GEA obtained from 21 patients undergoing a total gastrectomy was divided into 3 sections: proximal (5 cm from the origin), middle, and distal (5 cm from the end)...
December 13, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29237099/calcium-channel-blockers-for-primary-and-secondary-raynaud-s-phenomenon
#18
REVIEW
Fadumo Rirash, Paul C Tingey, Sarah E Harding, Lara J Maxwell, Elizabeth Tanjong Ghogomu, George A Wells, Peter Tugwell, Janet Pope
BACKGROUND: Raynaud's phenomenon is a vasospastic disease characterized by digital pallor, cyanosis, and extremity pain. Primary Raynaud's phenomenon is not associated with underlying disease, but secondary Raynaud's phenomenon is associated with connective tissue disorders such as systemic sclerosis, systemic lupus erythematosus, and mixed connective tissue disease. Calcium channel blockers promote vasodilation and are commonly used when drug treatment for Raynaud's phenomenon is required...
December 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29233021/amitriptyline-modulated-ca2-signaling-and-induced-ca2-independent-cell-viability-in-human-osteosarcoma-cells
#19
T Lu, C-T Chou, W-Z Liang, C-C Kuo, I-L Chen, J-L Wang, C-R Jan
Amitriptyline is a widely used tricyclic antidepressant, which acts primarily as a serotonin-norepinephrine reuptake inhibitor. This study examined the effect of amitriptyline on Ca2+ homeostasis and its related mechanism in MG63 human osteosarcoma cells. Amitriptyline evoked cytosolic-free Ca2+ concentrations ([Ca2+]i) rises concentration dependently. Amitriptyline-evoked Ca2+ entry was confirmed by Mn2+-induced quench of fura-2 fluorescence. This entry was inhibited by Ca2+ entry modulators nifedipine, econazole, SKF96365, the protein kinase C (PKC) activator phorbol 12-myristate 13 acetate but was not affected by the PKC inhibitor GF109203X...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29232282/selected-food-herb-drug-interactions-mechanisms-and-clinical-relevance
#20
Cecilia N Amadi, Amaka A Mgbahurike
BACKGROUND: Food/Herb-drug interactions have become a major problem in health care. These interactions can lead to loss of therapeutic efficacy or toxic effects of drugs. AREAS OF UNCERTAINTY: To probe the clinical relevance of such interactions, the impact of food/herb intake on the clinical effects of drug administration has to be evaluated. Failure to identify and efficiently manage food-drug interactions can lead to serious consequences. A comprehensive knowledge of the mechanisms that underpin variability in disposition will help optimize therapy...
November 22, 2017: American Journal of Therapeutics
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