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Liu S, Karim N, Rashwan AK, Xie J, Chen W. Carboxymethyl Chitosan-Coated Cyanidin-3- O-Glucoside-Beared Nanonutriosomes Suppress Palmitic Acid-Induced Hepatocytes Injury. J Agric Food Chem 2024; 72:9703-9716. [PMID: 38567751 DOI: 10.1021/acs.jafc.3c07152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Cyanidin-3-O-glucoside (C3G) is classified as an anthocyanin (ACN) and is recognized for its remarkable antioxidant properties. Yet, the inadequate physicochemical stability of C3G restricts its potential for various biological applications. Thus, in this study, carboxymethyl chitosan (CMC)-coated nanonutriosomes (NS) were synthesized as a novel carrier for encapsulating C3G (CMC-C3G-NS) to improve C3G stability. CMC-C3G-NS exhibited a diameter of less than 200 nm along with an encouraging encapsulation efficiency exceeding 90%. Notably, the formulated CMC-C3G-NS possessed better stability under various pH, ionic, and oxygen conditions, improved controlled release properties, and higher hepatocellular uptake than uncoated particles (C3G-NS), indicating a longer retention time of C3G in a physiological environment. Of utmost significance, CMC-C3G-NS demonstrated superior alleviating effects against palmitic acid (PA)-induced oxidative hepatic damage compared to C3G-NS. Our study provided promising nanocarriers with the potential to deliver hydrophilic ACNs and controlled release properties for PA-induced hepatotoxicity alleviation.
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Affiliation(s)
- Shiyu Liu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Naymul Karim
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Ahmed K Rashwan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
- Department of Food and Dairy Sciences, Faculty of Agriculture, South Valley University, Qena 83523, Egypt
| | - Jiahong Xie
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Wei Chen
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
- Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China
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Karim N, Shishir MRI, Rashwan AK, Ke H, Chen W. Corrigendum to "Suppression of palmitic acid-induced hepatic oxidative injury by neohesperidin-loaded pectin-chitosan decorated nanoliposomes" [Int. J. Biol. Macromol. 183 (2021) 908-917]. Int J Biol Macromol 2023; 249:126101. [PMID: 37549477 DOI: 10.1016/j.ijbiomac.2023.126101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Affiliation(s)
- Naymul Karim
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | | | - Ahmed K Rashwan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Huihui Ke
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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Karim N, Liu S, Rashwan AK, Xie J, Mo J, Osman AI, Rooney DW, Chen W. Green synthesis of nanolipo-fibersomes using Nutriose® FB 06 for delphinidin-3-O-sambubioside delivery: Characterization, physicochemical properties, and application. Int J Biol Macromol 2023; 247:125839. [PMID: 37454997 DOI: 10.1016/j.ijbiomac.2023.125839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/27/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
Anthocyanins are potential bioactive compounds with less bioavailability due to instability in physicochemical and physiological harsh environments. This study synthesized a "nanolipo-fibersomes (NLFS)" using Lipoid® S75 and Nutriose® FB 06 (dextrinization of wheat starch) through a self-assembly technique with probe sonication. We aimed to encapsulate delphinidin-3-O-sambubioside (D3S) successfully and evaluate physicochemical and controlled release properties with improved antioxidant activity on palmitic acid (PA)-induced colonic cells (Caco-2 cells). D3S-loaded nanolipo-fibersomes (D3S-NLFS) were nanosized (<150 nm), spherical shaped, and homogenously dispersed in solution with promising encapsulation efficiency (~ 89.31 to 97.31 %). Particles formation was further verified by FTIR. NLFS were well-stable in thermal, storage, and gastrointestinal mimic environments. NLFS exhibited better-controlled release and mucoadhesive properties compared to nanoliposomes (NL). The NLFS showed better cellular uptake than NL, which was correlated to higher mucoadhesive properties. Furthermore, D3S-NLFS exhibited promising protective effects against PA-induced cytotoxicity, O2•- radicals generation, mitochondrial dysfunctions, and GSH depletion, while the free D3S was ineffective. Among D3S-loaded nanoparticles, D3S-NLFS 3 was the most efficient nanocarrier followed by D3S-NLFS 2, D3S-NLFS 1, and D3S-NL, respectively. The above data suggest that nanolipo-fibersomes can be considered as promising nanovesicles for improving colonic delivery of hydrophilic compounds with controlled release properties and greater antioxidant activity.
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Affiliation(s)
- Naymul Karim
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Shiyu Liu
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Ahmed K Rashwan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Department of Food and Dairy Sciences, Faculty of Agriculture, South Valley University, Qena 83523, Egypt
| | - Jiahong Xie
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Jianling Mo
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Ahmed I Osman
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast BT9 5AG, Northern Ireland, UK.
| | - David W Rooney
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast BT9 5AG, Northern Ireland, UK
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China.
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Bao T, Karim N, Mo J, Chen W. Ultrasound-assisted ascorbic acid solution pretreated hot-air drying improves drying characteristics and quality of jujube slices. J Sci Food Agric 2023; 103:4803-4812. [PMID: 36905110 DOI: 10.1002/jsfa.12548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND The effective hot-air drying of foods such as jujube requires an effective green pretreatment alternative to chemical pretreatments. Jujube slices were pretreated using 5 and 10 mg mL-1 ultrasound-assisted vitamin C (UVC) for 10, 20, and 30 min, followed by hot-air drying. RESULTS Ultrasound-assisted vitamin C pretreatment for 10, 20, and 30 min modulated the characteristics of fresh jujube slices such as water loss (from -28.25% to -25.52% after 30 min of UVC pretreatment), solid gain (from -31.68% to -26.82% after 30 min of UVC pretreatment), loss of total and reducing sugars (from 200.25 mg and 34.88 mg to 287.14 mg and 4.71 mg, respectively, after 30 min of UVC pretreatment), total soluble solids (from 76.32 o Brix to 82.08 o Brix), and water diffusivity (from 9.01 × 10-10 m2 s-1 to 6.71 × 10-10 m2 s-1 ). These characteristics were associated with altered surface morphology and improved drying characteristics. The UVC pretreatment preserved an acceptable reddish-yellow or orange-like color during hot-air drying and reduced the browning index from 26.3 optical density (OD)/g DM to 23.25 OD/g dry mass basis (DM), which was connected with reduced 5-hydroxymethylfurfural (HMF) content. On the other hand, the proportions of bioactive components such as vitamin C increased from 1.05 mg g-1 DM to 9.02 mg g-1 DM, phenolics increased from 12.8 mg gallic acid equivalent (GAE)/g DM to 17.5 mg GAE/g DM, flavonoids increased from 4.0 mg rutin equivalent (RE)/g DM to 4.4 mg RE/g DM, and procyanidin content increased from 2.0 mg catechin equivalents (CE)/g DM to 2.9 mg CE/g DM in UVC pretreated jujube slices, which had a positive association with increased antioxidant activity - for example, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) increased from IC50 22.5 mg DM/mL to 8.0 mg DM/mL, 2,2-diphenyl-1-picrylhydrazyl (DPPH) changed from IC50 36.5 mg DM/mL to 9.5 mg DM/mL, and ferric reducing antioxidant power (FRAP) increased from 2.0 mg vitamin C equivalent (VCE)/g DM to 11.9 mg VCE/g DM). CONCLUSION The data indicated that UVC can be used as a promising pretreatment method for improving the hot-air drying characteristics and the quality of jujube slices. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Tao Bao
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Naymul Karim
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Jianling Mo
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
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Bao T, Karim N, Ke H, Tangpong J, Chen W. Polysaccharide isolated from wax apple suppresses ethyl carbamate-induced oxidative damage in human hepatocytes. J Zhejiang Univ Sci B 2023; 24:574-586. [PMID: 37455135 PMCID: PMC10350369 DOI: 10.1631/jzus.b2200629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/27/2023] [Indexed: 06/27/2023]
Abstract
Wax apple (Syzygium samarangense) has received growing research interest for its high nutritional and medicinal value due to its constituents such as polysaccharide, organic acids, flavonoids, minerals, and other substances. In this study, wax apple polysaccharide (WAP) was isolated from this plant and its protective effect against ethyl carbamate (EC)-induced oxidative damage was evaluated in human hepatocytes (L02 cells). Firstly, a series of analyses such as high-performance liquid chromatography (HPLC), high-performance gel permeation chromatography (HPGPC), Fourier transform infrared spectroscopy (FT-IR), gas chromatography/mass spectrometry (GC/MS), and 1H and 13C nuclear magnetic resonance (NMR) were conducted to identify the structure of WAP. Thereafter, in vitro cell experiments were performed to verify the protective effects of WAP against EC-induced cytotoxicity, genotoxicity, and oxidative damage in L02 cells. Our results revealed that WAP is composed of mannose, rhamnose, glucuronic acid, galacturonic acid, glucose, galactose, arabinose, and fucose in a molar ratio of 2.20:3.94:4.45:8.56:8.86:30.82:39.78:1.48. Using a combination of methylation and NMR spectroscopic analysis, the primary structure of WAP was identified as Araf-(1→, Glcp-(1→, →2)-Araf-(1→, →3)-Galp-(1→, →3)-Araf-(1→, and →6)-Galp-(1→. Cell experiments indicated that WAP exhibited significant protective effects on EC-treated L02 cells via suppressing cytotoxicity and genotoxicity, reducing reactive oxygen species (ROS) and O2•- formation, as well as improving mitochondrial membrane potential (MMP) and glutathione (GSH). In a nutshell, WAP has the potential as an important therapeutic agent or supplement for hepatic oxidative damage. Meanwhile, further studies are needed to prove the above effects in vivo at the biological and clinical levels.
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Affiliation(s)
- Tao Bao
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Naymul Karim
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Huihui Ke
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Jitbanjong Tangpong
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China.
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China.
- Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China.
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Ge H, Li J, Xu Y, Xie J, Karim N, Yan F, Mo J, Chen W. Curcumin alleviates lipid deposition in hepatocytes through miR-3666/AMPK axis regulation. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Vega J, Carrasco A, Karim N, Stewart M, Bell W. Recurrent cerebellar ischemic infarctions and stereotyped peri-ictal sympathetic responses in a near-SUDEP patient with cardiovascular risk factors. Epilepsy Behav Rep 2023; 23:100605. [PMID: 37332897 PMCID: PMC10276251 DOI: 10.1016/j.ebr.2023.100605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 06/20/2023] Open
Abstract
We report a 60-year-old woman who presented to the emergency department after experiencing a witnessed unknown onset bilateral tonic clonic seizure (GTCS) that culminated in cardiac arrest. A neurology consultant uncovered a years-long history of frequent episodic staring followed by confusion and expressive aphasia, which strongly suggested that she suffered from epilepsy. Thus, her cardiac arrest and subsequent resuscitation met criteria for a near-sudden unexpected death in epilepsy (SUDEP) diagnosis. Serial bloodwork demonstrated transient troponin I elevations and leukocytoses, while a brain MRI revealed global cerebral anoxic injury and a small acute right cerebellar ischemic infarction. A review of her medical record uncovered a hospitalization sixteen months earlier for a likely GTCS whose workup showed similar troponin I elevations and leukocytoses, and surprisingly, a different small acute right cerebellar ischemic infarction in the same vascular territory. To our knowledge, this is the first report of subcortical ischemic infarctions occurring concurrently with GTCSs in a near-SUDEP patient. Aside from illustrating the key role of inpatient neurologists in the diagnosis of near-SUDEP, this manuscript discusses the potential significance of postictal ischemic infarctions, transient asymptomatic troponin elevations, and transient non-infectious leukocytoses in epilepsy patients with cardiovascular risk factors.
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Affiliation(s)
- J.L. Vega
- East Carolina University Medical Center, Greenville, NC, United States
- TeleNeurologia SAS, Medellin, Colombia
| | - A. Carrasco
- Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - N. Karim
- East Carolina University Medical Center, Greenville, NC, United States
| | - M. Stewart
- Departments of Neurology, State University of New York Health Sciences University, Brooklyn, NY, United States
- Physiology and Pharmacology, State University of New York Health Sciences University, Brooklyn, NY, United States
| | - W. Bell
- Brody School of Medicine, East Carolina University, Greenville, NC, United States
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Ge H, Li J, Xu Y, Xie J, Karim N, Yan F, Mo J, Chen W. Ameliorative effect of Fructus Gardeniae against lipotoxicity associated hepatocytes injury through activating Nrf2 signaling pathway. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Li J, Ge H, Xu Y, Xie J, Karim N, Yan F, Mo J, Chen W. Chlorogenic acid alleviates oxidative damage in hepatocytes by regulating miR-199a-5p/GRP78 axis. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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10
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Cui H, Karim N, Jiang F, Hu H, Chen W. Assessment of quality deviation of pork and salmon due to temperature fluctuations during superchilling. J Zhejiang Univ Sci B 2022; 23:578-586. [PMID: 35794687 DOI: 10.1631/jzus.b2200030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Superchilling is an emerging technology for meat preservation; however, the temperature changes during the process have been commonly ignored. Thus, the effects of temperature fluctuations on meat quality during superchilling are yet to be evaluated. In our study, pork loins and salmon fillets were stored for several days (0, 8, 15, 23, and 30 d) under different temperature fluctuations based on -3.5 ℃ as the target temperature. The results showed that after 15 d of superchilling storage, the values of total volatile basic nitrogen, total viable count, and lipid oxidation were significantly (P<0.05) altered in the ±2.0 ℃ fluctuation group compared with the constant temperature group. On the contrary, there was no significant difference in these parameters between the ±1.0 ℃ fluctuation group and the constant temperature group after 30 d of storage. In addition, irregular temperature changes significantly accelerated the modulation of various indicators. In brief, temperature fluctuations and irregular temperature changes accelerated the destruction of muscle structural integrity, increased the water loss, gradually widened the water loss channels, and thereby reduced the edibility by accelerating the spoilage of meat.
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Affiliation(s)
- Haoxin Cui
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Naymul Karim
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Feng Jiang
- Changhong Meiling Co. Ltd., Hefei 230000, China
| | - Haimei Hu
- Changhong Meiling Co. Ltd., Hefei 230000, China
| | - Wei Chen
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China. .,Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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Rashwan AK, Karim N, Xu Y, Hanafy NAN, Li B, Mehanni AHE, Taha EM, Chen W. An updated and comprehensive review on the potential health effects of curcumin-encapsulated micro/nanoparticles. Crit Rev Food Sci Nutr 2022; 63:9731-9751. [PMID: 35522080 DOI: 10.1080/10408398.2022.2070906] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Curcumin (CUR) is a natural hydrophobic compound, which is available in turmeric rhizome. It has several bioactivities including antioxidant, anti-obesity, anti-diabetic, cardioprotective, anti-inflammatory, antimicrobial, anticancer, and other activities. Despite its medical and biological benefits, it is using in limitations because of its hydrophobicity and sensitivity. These unfavorable conditions further reduced the bioavailability (BA) and biological efficacy of CUR. This review summarizes the stability and BA of free- and encapsulated-CUR, as well as comprehensively discusses the potential biological activity of CUR-loaded various micro-/nano-encapsulation systems. The stability and BA of CUR can be improved via loading in different encapsulation systems, including nanoemulsions, liposomes, niosomes, biopolymer-based nanoparticles, nano-hydrogel, and others. Biopolymer-based nanoparticles (especially poly lactic-co-glycolic acid (PLGA), zein, and chitosan) and nano-gels are the best carriers for encapsulating and delivering CUR. Both delivery systems are suitable because of their excellent functional properties such as high encapsulation efficiency, well-stability against unfavorable conditions, and can be coated using other encapsulation systems. Based on available evidences, encapsulated-CUR exerted greater biological activities especially anticancer (breast cancer), antioxidant, antidiabetic, and neuroprotective effects.
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Affiliation(s)
- Ahmed K Rashwan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Department of Food and Dairy Sciences, Faculty of Agriculture, South Valley University, Qena, Egypt
| | - Naymul Karim
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yang Xu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Nemany A N Hanafy
- Nanomedicine Group, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Bin Li
- College of Food Science, Shenyang Agricultural University, Shenyang, China
| | - Abul-Hamd E Mehanni
- Department of Food Science and Nutrition, Faculty of Agriculture, Sohag University, Sohag, Egypt
| | - Eman M Taha
- Department of Food and Dairy Sciences, Faculty of Agriculture, South Valley University, Qena, Egypt
| | - Wei Chen
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Ningbo Research Institute, Zhejiang University, Ningbo, China
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12
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Bao T, Karim N, Xie L, Xie J, Chen W. Simulated gastrointestinal digestion and colonic fermentation of blue honeysuckle: Phenolic profile and protectivity on ethyl carbamate-induced oxidative damage. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zineb OY, Rashwan AK, Karim N, Lu Y, Tangpong J, Chen W. Recent Developments in Procyanidins on Metabolic Diseases, Their Possible Sources, Pharmacokinetic Profile, and Clinical Outcomes. Food Reviews International 2022. [DOI: 10.1080/87559129.2022.2062770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ould Yahia Zineb
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China
| | - Ahmed K. Rashwan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
- Department of Food and Dairy Sciences, Faculty of Agriculture, South Valley University, Qena 83523, Egypt
| | - Naymul Karim
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yang Lu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Jitbanjong Tangpong
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
| | - Wei Chen
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand
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14
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Bao T, Hao X, Shishir MRI, Karim N, Chen W. Green alternative methods for pretreatment of whole jujube before the drying process. J Sci Food Agric 2022; 102:1030-1039. [PMID: 34312880 DOI: 10.1002/jsfa.11438] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/20/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Jujube contains a waxy cuticle that acts as a barrier against fungal pathogens, prevents nutrition damage and leakage due to mechanical damage, and maintains water content. Chemical treatment before drying is the most commonly used method for whole jujube. Although chemical pretreatment can effectively enhance drying kinetics, it can lead to the loss of soluble nutrients and cause food safety issues due to chemical residues. Therefore, this study aimed to explore the effect of various pretreatments (cold plasma, cold plasma activated water, ultrasonics, thermosonication, and blanching) on the drying process and quality properties of whole jujube so as to find effective green alternatives to chemical pretreatment. RESULTS The application of chemical, cold plasma, and thermosonication significantly altered the surface morphology of jujube by etching larger cracks and holes, which can facilitate the transfer of moisture, thereby improving the drying rate and the effective diffusivity. Chemical, cold plasma, and thermosonication pretreatment reduced drying time by 18%, 12%, and 7% respectively, thereby increasing the content of total phenolics by 13%, 12%, and 6% respectively, and enhancing antioxidant capacity (ferric reducing antioxidant power) by 13%, 11%, and 3% respectively. In addition, chemical and cold plasma pretreatment reduced the generation of 5-hydroxymethylfurfural by 25% and 15% respectively. CONCLUSION Cold plasma is a promising green alternative method to chemical pretreatment for drying processes of whole jujube. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Tao Bao
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Xin Hao
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | | | - Naymul Karim
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
- Ningbo Research Institute, Zhejiang University, Ningbo, China
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Rashwan AK, Karim N, Xu Y, Cui H, Fang J, Cheng K, Mo J, Chen W. Chemical composition, quality attributes and antioxidant activity of stirred-type yogurt enriched with Melastoma dodecandrum Lour fruit powder. Food Funct 2022; 13:1579-1592. [PMID: 35073395 DOI: 10.1039/d1fo03448k] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Incorporation of Melastoma dodecandrum Lour fruit powder as a promising functional ingredient for stirred-type yogurt (STY) improved physicochemical properties, polyphenol contents, antioxidant activity, microstructure, and texture of STY.
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Affiliation(s)
- Ahmed K. Rashwan
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
- Department of Food and Dairy Sciences, Faculty of Agriculture, South Valley University, Qena 83523, Egypt
| | - Naymul Karim
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Yang Xu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Haoxin Cui
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Jie Fang
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui 323000, China
| | - Kejun Cheng
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui 323000, China
| | - Jianling Mo
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
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16
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Karim N, Shishir MRI, Bao T, Chen W. Effect of cold plasma pretreated hot-air drying on the physicochemical characteristics, nutritional values and antioxidant activity of shiitake mushroom. J Sci Food Agric 2021; 101:6271-6280. [PMID: 33949697 DOI: 10.1002/jsfa.11296] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/19/2021] [Accepted: 05/05/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Shiitake mushroom is one of the most popular delicious vegetables, although fresh shiitake mushroom has short shelf life as a result of biochemical degradation. Drying can prolong the shelf life of mushroom. Additionally, application of cold plasma pretreatments (CPT) before drying can preserve the product quality, processing costs and nutritional values. Therefore, we aimed to explore the effect of cold plasma pretreated hot-air drying at 50, 60 and 70 °C on the physicochemical characteristics, nutritional values and antioxidant activity of shiitake mushroom. RESULTS Scanning electron microscopy micrographs showed that CPT induced the surface modification of fresh shiitake (such as cellular disarrangement, cellular shrinkages, disruption or break down of cell walls, and intracellular spaces and cavities) and facilitate the rapid drying than control samples. Furthermore, CPT improved the powder qualities (bulk density, water retention and swelling index) and preserved higher nutritional attributes (sugars, vitamins, phenolic acids contents and antioxidant activity) compared to the control groups. CONCLUSION Conclusively, CPT could be a suitable alternative technique for improving drying characteristics and preserving nutritional attributes of agro-based products. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Naymul Karim
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | | | - Tao Bao
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
- Ningbo Research Institute, Zhejiang University, Ningbo, China
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17
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Rashwan AK, Karim N, Xu Y, Xie J, Cui H, Mozafari MR, Chen W. Potential micro-/nano-encapsulation systems for improving stability and bioavailability of anthocyanins: An updated review. Crit Rev Food Sci Nutr 2021:1-24. [PMID: 34661483 DOI: 10.1080/10408398.2021.1987858] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Anthocyanins (ACNs) are notable hydrophilic compounds that belong to the flavonoid family, which are available in plants. They have excellent antioxidants, anti-obesity, anti-diabetic, anti-inflammatory, anticancer activity, and so on. Furthermore, ACNs can be used as a natural dye in the food industry (food colorant). On the other hand, the stability of ACNs can be affected by processing and storage conditions, for example, pH, temperature, light, oxygen, enzymes, and so on. These factors further reduce the bioavailability (BA) and biological efficacy of ACNs, as well as limit ACNs application in both food and pharmaceutics field. The stability and BA of ACNs can be improved via loading them in encapsulation systems including nanoemulsions, liposomes, niosomes, biopolymer-based nanoparticles, nanogel, complex coacervates, and tocosomes. Among all systems, biopolymer-based nanoparticles, nanohydrogels, and complex coacervates are comparatively suitable for improving the stability and BA of ACNs. These three systems have excellent functional properties such as high encapsulation efficiency and well-stable against unfavorable conditions. Furthermore, these carrier systems can be used for coating of other encapsulation systems (such as liposome). Additionally, tocosomes are a new system that can be used for encapsulating ACNs. ACNs-loaded encapsulation systems can improve the stability and BA of ACNs. However, further studies regarding stability, BA, and in vivo work of ACNs-loaded micro/nano-encapsulation systems could shed a light to evaluate the therapeutic efficacy including physicochemical stability, target mechanisms, cellular internalization, and release kinetics.
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Affiliation(s)
- Ahmed K Rashwan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China.,Department of Food and Dairy Sciences, Faculty of Agriculture, South Valley University, Qena, Egypt
| | - Naymul Karim
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Yang Xu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Jiahong Xie
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Haoxin Cui
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - M R Mozafari
- Australasian Nanoscience and Nanotechnology Initiative (ANNI), 8054 Monash University LPO, Clayton, Victoria, Australia
| | - Wei Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
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18
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Nasiruddin Rana M, Karim N, Changlek S, Atiar Rahman M, Tangpong J, Hajjar D, Alelwani W, Makki AA. Thunbergia laurifolia leaf extract partially recovers lead-induced renotoxicity through modulating the cell signaling pathways. Saudi J Biol Sci 2021; 27:3700-3710. [PMID: 34466056 PMCID: PMC8381871 DOI: 10.1016/j.sjbs.2020.08.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/04/2020] [Accepted: 08/09/2020] [Indexed: 11/30/2022] Open
Abstract
This research investigated the reno-protective effect of Thunbergia laurifolia Linn. (TL) in a lead-induced toxicity test through the modulation of cell signaling pathways. The study carried out to evaluate the effect of TL leaf extracts in Swiss Albino mice exposed to lead acetate (PbAc). Prior to in vivo study, a probable kidney-protective effect of the plant leaf extract was presumed through an activity-specific (PASS) molecular docking analysis. In animal model study, albino mice were divided in seven groups and co-treated with PbAc and TL (100, 200 mg/kgBW) or vitamin E (100 mg/kgBW) for 38 days, whereas the untreated control, TL control, and vehicle control groups received sodium acetate, PbAc, sodium acetate plus mineral oil, respectively. At the end of treatment, blood and kidney tissue were collected for investigating Pb concentration, estimating biochemical profile, evaluating oxidative stress and inflammatory parameters. The histopathological change of kidney along with apoptosis was assessed from kidney sections using H & E staining and TUNEL assay. Pb-exposed mice were found to be increased concentration of Pb in the blood and kidney sample, which further led to increased MDA levels in the plasma, blood, and tissue. Followed by kidney damage, increased expression of TNF-α, iNOS, and COX-2 in kidney tissues were noticed, which were related to elevated TNF-α in the systemic circulation of Pb-treated mice. Co-treatment with TL or vitamin E significantly reduced altered structure and apoptosis of kidney tissues. Downregulation of inflammatory markers especially TNF-α, iNOS, and COX-2 with simultaneous improvement of renal function through reduced plasma BUN and creatinine levels demonstrate that TL act as a potential dietary supplement to detoxify Pb in kidney showing an antioxidant and anti-inflammatory effect.
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Key Words
- Anti-inflammation
- BUN, Blood urea nitrogen
- BW, body weight
- COX-2, Cyclooxygenase-2
- DNA, Deoxyribonucleic acid
- ELISA, enzyme-linked immunosorbent assay
- GFR, Glomerular filtration rate
- H&E, Hematoxylin-Eosin
- Lead (Pb)
- MDA, Malondialdehyde
- Oxidative stress
- Pb, lead
- ROS, reactive oxygen species
- Renotoxicity
- TBARS, Thiobarbituric acid reactive substances
- TBS, Tris phosphate saline
- TBST, Tris phosphate buffer saline with Tween 20
- TL, Thunbergia laurifolia Linn.
- TNF-α, Tumor necrosis factor-alpha
- TUNEL, Terminal deoxynucleotidyl transferase dUTP nick end labeling
- Thunbergia laurifolia Linn.
- iNOS, Inducible nitric oxide synthase
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Affiliation(s)
- Mohammad Nasiruddin Rana
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand.,Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, PR China.,Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Naymul Karim
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand.,Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Suksan Changlek
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand.,Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Md Atiar Rahman
- Department of Biochemistry and Molecular Biology, University of Chittagong, Chittagong, Bangladesh
| | - Jitbanjong Tangpong
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand.,Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Dina Hajjar
- Department of Biochemistry, College of Sciences, University of Jeddah, Jeddah 80203, Saudi Arabia
| | - Walla Alelwani
- Department of Biochemistry, College of Sciences, University of Jeddah, Jeddah 80203, Saudi Arabia
| | - Arwa A Makki
- Department of Biochemistry, College of Sciences, University of Jeddah, Jeddah 80203, Saudi Arabia
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19
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Karim N, Kozhuharov N, Jarman J, Furniss S, Veasey R, Ullah W, Vouliotis AI, Martin C, Kalla M, Osmanagic A, Ginks M, Pope M, Christian Sitcherling C, Gupta D, Wong T. Safety and acute clinical outcomes of atrial fibrillation catheter ablation in octogenarians: a multicentre evaluation with a matched younger cohort. Europace 2021. [DOI: 10.1093/europace/euab116.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
OnBehalf
Sven Knecht and the International Octogenarian AF ablation group
Background
Octogenarians are a fast-growing demographic with a high burden of atrial fibrillation (AF). There are limited data on procedural safety and acute outcomes of catheter ablation (CA) for AF in this group.
Purpose
Investigation of complications & outcomes in octogenarians undergoing CA for AF.
Methods
Data on all octogenarian patients who underwent AF ablation at nine European cardiology centres between 2013 and 2019 were retrospectively analysed and matched with control patients aged <80 years. The characteristics used for matching were type of AF, type of procedure (de novo or redo), & the year of procedure.
Results
216 octogenarians (81.9 ± 1.9 years; 52.8% females) underwent an AF ablation procedure, and were matched with 216 patients aged <80 years (62.4 ± 9.5 years, 34.7% females), p <0.001 for both. The proportion of paroxysmal and persistent AF was 43.5% & 56.5% respectively in both groups, and 79.3% of the procedures were de novo. RF ablation made up 75.4% & 75.9% (p = 0.90) procedures in octogenarians and controls respectively. 17 complications occurred in 14 (7.9%) octogenarian patients and 11 in 11 (5.1%) patients in the younger matched cohort (p = 0.07). There were 4.2% & 1.9% major complications (p= 0.17) and 3.7% & 3.2% minor complications (p= 0.77) in the octogenarian & younger cohorts respectively. Complications in octogenarians consisted of groin complications (n = 6), pneumonia (n = 3), pericardial effusion (n = 2), phrenic nerve injury (n = 2), pulmonary oedema (n = 1), gastroparesis (n = 1), stroke (n = 1). Acute procedural success rates were 99.1% & 99.5% (p = 0.62) The complication rates were similar for RF; 6.0% vs 5.4% (p = 0.79) and Cryoballoon; 14.0% vs 4.1% (p = 0.09) in both octogenarians and younger cohort respectively.
Conclusion
In spite of significantly higher overall risk profile of octogenarians undergoing AF ablation, there is no difference in acute procedural success and complication rates as compared to younger patients Catheter ablation of AF in octogenerians Octogenarians n = 216 Matched Controls (aged < 80yrs) n = 216 P value Age (yrs), mean (SD)s 81.9 (1.9) 62.4(9.5) < 0.0001 Females, (%) 52.8 34.7 0.0002 CHA2DS2-VASc, mean (SD) 3.6 (1.2) 1.4 (1.3) < 0.0001 Mean LA size, mm 42.8 ± 8.3mm 45.8 ± 16.2 0.062 Impaired LV function, (%) 23.7 17.9 0.206 IHD, (%) 20.7 5.9 < 0.0001 Procedural time (mins), mean (sd) 150.6 (69.7) 148.9 (64.4) 0.914 All complications, n (%) 17 (7.9) 11 (5.1) 0.073
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Affiliation(s)
- N Karim
- Royal Brompton Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - N Kozhuharov
- Liverpool Heart and Chest Hospital, Liverpool, United Kingdom of Great Britain & Northern Ireland
| | - J Jarman
- Royal Brompton Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - S Furniss
- Eastbourne District General Hospital, Eastbourne, United Kingdom of Great Britain & Northern Ireland
| | - R Veasey
- Eastbourne District General Hospital, Eastbourne, United Kingdom of Great Britain & Northern Ireland
| | - W Ullah
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - A-I Vouliotis
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - C Martin
- Royal Papworth Hospital NHS Foundation Trust, Cambridge, United Kingdom of Great Britain & Northern Ireland
| | - M Kalla
- Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom of Great Britain & Northern Ireland
| | - A Osmanagic
- Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom of Great Britain & Northern Ireland
| | - M Ginks
- John Radcliffe Hospital, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - M Pope
- John Radcliffe Hospital, Oxford, United Kingdom of Great Britain & Northern Ireland
| | | | - D Gupta
- Liverpool Heart and Chest Hospital, Liverpool, United Kingdom of Great Britain & Northern Ireland
| | - T Wong
- Royal Brompton Hospital, London, United Kingdom of Great Britain & Northern Ireland
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20
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Karim N, Shishir MRI, Rashwan AK, Ke H, Chen W. Suppression of palmitic acid-induced hepatic oxidative injury by neohesperidin-loaded pectin-chitosan decorated nanoliposomes. Int J Biol Macromol 2021; 183:908-917. [PMID: 33965489 DOI: 10.1016/j.ijbiomac.2021.05.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 04/20/2021] [Accepted: 05/02/2021] [Indexed: 12/12/2022]
Abstract
The biological activity of neohesperidin (NH, a flavanone glycoside) is limited due to instability in the physiological environment. Thus, the current study aimed to explore the protective effect of NH-loaded pectin-chitosan decorated liposomes (P-CH-NH-NL) against palmitic acid (PA)-induced hepatic oxidative injury in L02 cells. The particles were characterized using DLS, TEM, HPLC, DSC, and cellular uptake study. Then, the protective effect of NH-loaded liposomal systems (NH-NLs) against PA-induced oxidative injury was evaluated in terms of cell viability study, intracellular ROS, superoxide ions (O2-), MMP, and cellular GSH determination. Our results exhibited that NH-NLs significantly lessened the PA-induced hepatic oxidative injury in L02 cells via decreasing ROS and O2- generation, reducing MMP collapse, and attenuating GSH reduction, whereas the free NH samples were ineffective. Furthermore, the coated NH-NLs were more effective than that of uncoated nanoliposome. Overall, our study confirmed that P-CH-NH-NL was capable of reducing PA-induced hepatic oxidative injury. Therefore, the pectin-chitosan decorated nanoliposome can be considered as an efficient delivery system for enhancing cellular uptake of lipophilic compound with controlled release and greater biological activity.
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Affiliation(s)
- Naymul Karim
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | | | - Ahmed K Rashwan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Huihui Ke
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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21
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Rashwan AK, Yones HA, Karim N, Taha EM, Chen W. Potential processing technologies for developing sorghum-based food products: An update and comprehensive review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.087] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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22
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Karim N, Shishir MRI, Gowd V, Chen W. Hesperidin-An Emerging Bioactive Compound against Metabolic Diseases and Its Potential Biosynthesis Pathway in Microorganism. Food Reviews International 2021. [DOI: 10.1080/87559129.2020.1858312] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Naymul Karim
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China
| | - Mohammad Rezaul Islam Shishir
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China
| | - Vemana Gowd
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China
| | - Wei Chen
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China
- Ningbo Research Institute, Zhejiang University, Ningbo, China
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Rashwan AK, Karim N, Shishir MRI, Bao T, Lu Y, Chen W. Jujube fruit: A potential nutritious fruit for the development of functional food products. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104205] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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24
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Shishir MRI, Karim N, Xie J, Rashwan AK, Chen W. Colonic delivery of pelargonidin-3-O-glucoside using pectin-chitosan-nanoliposome: Transport mechanism and bioactivity retention. Int J Biol Macromol 2020; 159:341-355. [DOI: 10.1016/j.ijbiomac.2020.05.076] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/20/2020] [Accepted: 05/11/2020] [Indexed: 12/25/2022]
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25
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Karim N, Shishir MRI, Chen W. Surface decoration of neohesperidin-loaded nanoliposome using chitosan and pectin for improving stability and controlled release. Int J Biol Macromol 2020; 164:2903-2914. [PMID: 32853610 DOI: 10.1016/j.ijbiomac.2020.08.174] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/27/2020] [Accepted: 08/21/2020] [Indexed: 02/08/2023]
Abstract
The aim of this study was to improve the physicochemical stability of neohesperidin (NH) using nanoliposomal encapsulation in association with surface decoration strategy employing chitosan (CH) and pectin (P). Different nanoliposomal systems, i.e. NH-loaded nanoliposome (NH-NL), CH-coated NH-NL (CH-NH-NL), and P-coated CH-NH-NL (P-CH-NH-NL) were characterized through DLS, HPLC, TEM, and FTIR. The results confirmed good encapsulation efficiency (>90%) and successful layer formation with nano-sized and spherical carrier. Both CH-NL and P-CH-NL exhibited better physicochemical stability than NL under storage, thermal, pH, ionic, UV, oxidative, and serum conditions. In vitro mucin adsorption study revealed that CH-NL (60%) was more effective in mucoadhesion followed by P-CH-NL (46%) and NL (41%). Furthermore, P-CH-NL showed better performance in NH retention under different food simulants compared to CH-NH-NL and NH-NL, in which the release was mainly governed by the diffusion process. Thus, the P-CH conjugated nanoliposome could be a promising nano-carrier for neohesperidin.
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Affiliation(s)
- Naymul Karim
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Mohammad Rezaul Islam Shishir
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Wei Chen
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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26
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Bao T, Hao X, Shishir MRI, Karim N, Chen W. Cold plasma: An emerging pretreatment technology for the drying of jujube slices. Food Chem 2020; 337:127783. [PMID: 32791427 DOI: 10.1016/j.foodchem.2020.127783] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 07/08/2020] [Accepted: 08/03/2020] [Indexed: 10/24/2022]
Abstract
Jujube slices were pretreated by cold plasma for 15, 30, and 60 s on each side, followed by hot air drying at 50, 60, and 70 °C. Scanning electron microscopy investigation indicated that the application of cold plasma significantly changed the surface topography of jujube slice by etching larger cavities, which can facilitate moisture transfer and consequently enhance drying rate and effective diffusivity. Modified Henderson & Pabis model and Two-term model were the two most recommended models for describing the drying kinetics of jujube slices. Cold plasma pretreatment improved the contents of procyanidins, flavonoids, and phenolics by 53.81%, 33.89%, and 13.85% at most, respectively, and thereby enhanced antioxidant capacity by 36.85% at most. Besides, cold plasma pretreatment can reduce the production of 5-hydroxymethylfurfural by 52.19% at most. In summary, cold plasma can be used as a promising pretreatment tool for drying processes of jujube slices.
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Affiliation(s)
- Tao Bao
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Xin Hao
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Mohammad Rezaul Islam Shishir
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Naymul Karim
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Wei Chen
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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Shishir MRI, Karim N, Xu Y, Xie J, Chen W. Improving the physicochemical stability and functionality of nanoliposome using green polymer for the delivery of pelargonidin-3-O-glucoside. Food Chem 2020; 337:127654. [PMID: 32791428 DOI: 10.1016/j.foodchem.2020.127654] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 07/19/2020] [Accepted: 07/19/2020] [Indexed: 12/31/2022]
Abstract
This study aimed to improve the physicochemical stability of nanoliposome (NL) with enhanced functionality for the delivery of Pelargonidin-3-O-glucoside (P3G) using biopolymers, i.e. chitosan (CH) and pectin (P). In this study, we successfully developed stabilized liposomal carriers, i.e. CH-conjugated NL (CH-NL) and P-conjugated CH-NL (P-CH-NL) using an optimum concentration of CH (0.6 wt%) and P (0.5 wt%). Results revealed that P-CH-NL had better physical stability to salt and pH with maximum P3G retention (>97%) under oxidative, thermal, and UV conditions. Nanoliposomes were more stable under refrigerated-storage and ensured high P3G retention (>96%). In vitro mucoadhesion study revealed that CH-NL had better mucin adsorption efficiency (59.72%) followed by P-CH-NL and NL. Furthermore, CH-NL and P-CH-NL alternatively had better stability to serum than NL. Taken together, the stabilization of nanoliposome using chitosan and pectin can be a promising approach for the delivery of hydrophilic compounds in association with enhanced stability and functionality.
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Affiliation(s)
- Mohammad Rezaul Islam Shishir
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Naymul Karim
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Yang Xu
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Jiahong Xie
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Wei Chen
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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Karim N, Rahman MA, Changlek S, Tangpong J. Short-Time Administration of Xanthone From Garcinia mangostana Fruit Pericarp Attenuates the Hepatotoxicity and Renotoxicity of Type II Diabetes Mice. J Am Coll Nutr 2019; 39:501-510. [PMID: 31846399 DOI: 10.1080/07315724.2019.1696251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objective: Our previous studies reported that xanthone can protect from hyperglycemia-induced diabetes mellitus (DM) via possessing antioxidant activity. An attempt has been made to evaluate the protective effect of xanthone against hepatotoxicity and renotoxicity of high-fat-diet and single-dose-streptozotocin-induced DM mice.Method: In this research, in vitro antioxidant and antidiabetic assays were performed. In vivo oral glucose and maltose tolerance test, metabolic parameters, plasma biochemical markers, oxidative status, etc. were evaluated in experimental mice. In addition, liver/kidney tissue histology and kidney apoptosis were observed using hematoxylin and eosin staining and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assays, respectively.Results: Xanthone exhibited potent in vitro antioxidant and antidiabetic activity. Xanthone treatments to diabetic mice significantly (p < 0.05) improved the biochemical and antioxidant parameters compared to that of the control group. Moreover, xanthone treatments also significantly (p < 0.05) reformed the liver and kidney histological alterations as well as reduced the cellular apoptosis of kidney tissue.Conclusions: All findings together concluded that xanthone could be a dietary supplement for the patient with diabetic complications.
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Affiliation(s)
- Naymul Karim
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Md Atiar Rahman
- Department of Biochemistry and Molecular Biology, University of Chittagong, Chittagong, Bangladesh
| | - Suksan Changlek
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand.,Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat, Thailand
| | - Jitbanjong Tangpong
- Biomedical Sciences, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand.,Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat, Thailand
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Shishir MRI, Karim N, Gowd V, Xie J, Zheng X, Chen W. Pectin-chitosan conjugated nanoliposome as a promising delivery system for neohesperidin: Characterization, release behavior, cellular uptake, and antioxidant property. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.04.059] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Karim N, Marinelli A, Cantor E, Boyalla V, Malaczynska-Rajpold K, Ahmed O, Khan H, Haldar S, Jones D, Hussein W, Markides V, Wong T, Jarman J. P2831Safety of atrial fibrillation catheter ablation in the elderly. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Catheter ablation for drug refractory, symptomatic atrial fibrillation (AF), is becoming increasingly common and can be beneficial in alleviating symptoms. However, in the elderly, there are concerns about the risks an invasive procedure poses, with limited published data available in those aged over 80 years.
Purpose
To determine the complication risk of AF catheter ablation in the elderly
Methods
Complications were identified from patient records in 3156 consecutive patients who underwent radiofrequency catheter ablation for AF, at a tertiary cardiology centre between 2013–2017. All cases were performed under general anesthesia.
Results
In this cohort of 3156 patients (mean age= 62.9±11.0 years, female = 29.9%), 90 (2.85%) (mean age= 66±10.0 years, female = 49.5%) complications were identified. In patients aged ≥80 years, complications occurred in 5 out of 99 patients (5.05%) (mean age= 82.6±1.2, female=100%), compared to 85 out of 3057 patients (2.78%) in those aged <80 years (mean age= 65±10.3, female = 49.4%). The difference was not significant p=0.18. Complications in the elderly all occurred acutely, and included groin haematoma (2.02%), pneumonia (2.02%) and pericardial effusion (1.01%).
Conclusion
Catheter ablation for AF in patients ≥80 years of age, is not associated with a significant increase in complication risk, compared to those who are younger.
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Affiliation(s)
- N Karim
- Royal Brompton Hospital, London, United Kingdom
| | - A Marinelli
- Royal Brompton Hospital, London, United Kingdom
| | - E Cantor
- Royal Brompton Hospital, London, United Kingdom
| | - V Boyalla
- Royal Brompton Hospital, London, United Kingdom
| | | | - O Ahmed
- Royal Brompton Hospital, London, United Kingdom
| | - H Khan
- Royal Brompton Hospital, London, United Kingdom
| | - S Haldar
- Royal Brompton Hospital, London, United Kingdom
| | - D Jones
- Royal Brompton Hospital, London, United Kingdom
| | - W Hussein
- Royal Brompton Hospital, London, United Kingdom
| | - V Markides
- Royal Brompton Hospital, London, United Kingdom
| | - T Wong
- Royal Brompton Hospital, London, United Kingdom
| | - J Jarman
- Royal Brompton Hospital, London, United Kingdom
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Amin T, Karim N, Roberts M, McMahon L. SAT-058 Signal-averaged ECG abnormality and mortality in hemodialysis patients: A prospective study. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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32
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Karim N, Rahman A, Chanudom L, Thongsom M, Tangpong J. Mangosteen Vinegar Rind from Garcinia mangostana Prevents High-Fat Diet and Streptozotocin-Induced Type II Diabetes Nephropathy and Apoptosis. J Food Sci 2019; 84:1208-1215. [PMID: 31012974 DOI: 10.1111/1750-3841.14511] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 01/23/2019] [Accepted: 02/14/2019] [Indexed: 12/28/2022]
Abstract
Type II diabetes (T2D) nephropathy, a major cause of end-stage kidney disease, progresses and develops from oxidative stress. Natural polyphenols can protect the kidney from diabetic nephropathy exerting antioxidant activities. The present approach enumerates the reno-protective and anti-apoptotic effects of mangosteen vinegar rind (MVR, a phenolic aqueous extract) against high-fat diet (5 g/day up to five weeks)-/streptozotocin (single ip, dose 30 mg/kgBW)-induced T2D nephropathy of albino mice. In vitro total phenolic content, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) activity, 2,2-diphenyl-1-picrylhydrazyl (DPPH) antioxidant capacity, and α-amylase inhibition activity as antidiabetic assay of MVR were performed. In vivo mice body weight, oral glucose, and maltose tolerance test, metabolic parameters (plasma glucose, insulin level, omeostasis model assessment-estimated insulin resistance), biochemical parameters (kidney hypertrophy, blood urea nitrogen, creatinine), oxidative stress parameters (malondialdehyde, superoxide dismutase, catalase) were estimated in an intervention study. Additionally, renal morphology and early apoptosis were observed following the H & E staining and TUNEL assay of the tissue frozen section. We found that the aqueous extract of MVR possesses potent in vitro antioxidative and antidiabetic activities. Animal intervention results showed that MVR 100, 200 mg/kgBW, and Glibenclamide 60 mg/kgBW treatments significantly improved (P < 0.05) the abovementioned parameters compared to the diabetic control group. Furthermore, treatments also significantly restored (P < 0.05) kidney histological alterations and reduced cellular apoptosis compared to the diabetic control group. These findings concluded that MVR treatments significantly modulated the glucose intolerance, metabolic alterations, and oxidative stress-induced pathological alterations and cellular apoptosis of diabetic kidney. PRACTICAL APPLICATION: Garcinia mangostana, a polyphenol rich natural product, is obtained from the tropical rain forest area of Southeast Asian countries and processes diverse biological activities including antioxidant, anti-proliferative, anti-inflammatory, anti-carcinogenic, and so on. This research first time focuses on the nephro-protective and anti-apoptotic effects of mangosteen vinegar rind (MVR) from the mangosteen fruit pericarp. Our study provides the efficient data to prove the beneficial effect of MVR as a dietary supplement for the prevention and management of diabetic nephropathy.
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Affiliation(s)
- Naymul Karim
- Biomedical Sciences, School of Allied Health Sciences, Walailak Univ., Nakhon Si Thammarat, 80161, Thailand
| | - Atiar Rahman
- Dept. of Biochemistry and Molecular Biology, Univ. of Chittagong, Chittagong, 80280, Bangladesh
| | - Lanchakon Chanudom
- Biology Program, Faculty of Science and Technology, Nakhonsithammarat Rajabhat University, Nakhon Si Thammarat, Thailand
| | - Montakarn Thongsom
- Biology Program, Faculty of Science and Technology, Nakhonsithammarat Rajabhat University, Nakhon Si Thammarat, Thailand
| | - Jitbanjong Tangpong
- Biomedical Sciences, School of Allied Health Sciences, Walailak Univ., Nakhon Si Thammarat, 80161, Thailand
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34
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Karim N, Pathrose J, Fathallah H, El Desouki I, Perry A, Starnes S, Morris J. P2.01-129 Potential Impact of KRAS Molecular Profiling of Non-Squamous Non-Small Cell Lung Cancer (NSCLC). J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Creta A, Providencia R, Karim N, Papageorgiou N, Sporton S, Chow A, Finlay M, Ahsan S, Earley MJ, Khan F, Hunter R, Lowe M, Segal O, Lambiase PD, Schilling RJ. P5773Atrial fibrillation catheter ablation in patients with hypertrophic cardiomyopathy: multi-centre experience and application of HCM-Risk SCD score to predict ablation outcome. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Creta
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - R Providencia
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - N Karim
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - N Papageorgiou
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - S Sporton
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - A Chow
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - M Finlay
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - S Ahsan
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - M J Earley
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - F Khan
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - R Hunter
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - M Lowe
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - O Segal
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - P D Lambiase
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
| | - R J Schilling
- Barts Heart Centre, St Bartholomew's Hospital, London, United Kingdom
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36
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Karim N, Jenduang N, Tangpong J. Anti-Glycemic and Anti-Hepatotoxic Effects of Mangosteen Vinegar Rind from Garcinia mangostana Against HFD/STZ-Induced Type II Diabetes in Mice. POL J FOOD NUTR SCI 2018. [DOI: 10.1515/pjfns-2017-0018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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37
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Karim N, Murtaza G, Naeem M. Whole‐exome sequencing identified a novel frameshift mutation in
SDR9C7
underlying autosomal recessive congenital ichthyosis in a Pakistani family. Br J Dermatol 2017; 177:e191-e192. [DOI: 10.1111/bjd.15535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- N. Karim
- Medical Genetics Research Laboratory Department of Biotechnology Quaid‐I‐Azam University Islamabad Pakistan
| | - G. Murtaza
- Medical Genetics Research Laboratory Department of Biotechnology Quaid‐I‐Azam University Islamabad Pakistan
| | - M. Naeem
- Medical Genetics Research Laboratory Department of Biotechnology Quaid‐I‐Azam University Islamabad Pakistan
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38
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Adlakha R, Obiechina N, Gill A, Brice H, Parwes I, Barnes A, Davies A, Diamanto A, Karim N, Hawkins L, Michael A, Nandi A. 126Implantable loop recorders - diagnostic yield in patients with syncope and presyncope. Europace 2017. [DOI: 10.1093/europace/eux283.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Karim N, Jacob A, Shaukat M, Hua Y, Chiu H, Mehta A, Moore P, Chow A. 59Can high volume tertiary centres with 24/7 device implanting service provide improved efficacy and outcomes compared to a large district general hospital model? Europace 2017. [DOI: 10.1093/europace/eux283.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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Aluisio A, Mbanjumucyo G, Barry M, Karim N, Levine A. 193 Impact of Implementation of Emergency Medicine Training on Emergency Department Mortality in Kigali, Rwanda: An Interrupted Time-Series Quasi-Experimental Design. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Karim N, Aral M, Eduwor S, Wald D, Finlay M. 46Smartphone apps for the detection of AF. Europace 2017. [DOI: 10.1093/europace/eux283.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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Providencia R, Srinivasan N, Karim N, Honarbakhsh S, Ferreira MJ, Goncalves L, Lambiase PD. P1793Impact of QTc formulae in the prevalence of long corrected QT interval and impact on risk of Long QT Syndrome. Europace 2017. [DOI: 10.1093/ehjci/eux161.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Furniss G, Opel A, Hussein A, Pearman C, Grace A, Connelly D, Orlowski A, Banerjee A, McNicholas T, Providencia R, Montañes M, Providencia R, Panagopoulos D, Tomlinson D, Dalrymple-Hay M, Haywood G, Butler A, Ang R, Ullah W, Schwartz R, Fannon M, Finlay M, Hunter R, Schilling R, Das M, Asfour I, Morgan M, Ronayne C, Shaw M, Snowdon R, Gupta D, Todd D, King R, Hall M, Modi S, Mediratta N, Gupta D, Reddy V, Neuzil P, Willems S, Verma A, Heck P, Schilling R, Lambiase P, Hall M, Nicholl B, McQueenie R, Jani BD, McKeag N, Gallacher K, Mair F, Heaton D, Macdonald J, Burnell J, Ryan R, Marshall T, Sutton C, O'Callaghan S, Kenny R, Karim N, Srinivasan N, Ferreira M, Goncalves L, Lambiase P, Toledano M, Field E, Walsh H, Maguire K, Cervi E, Kaski J, Perez Tome M, Pantazis A, Elliott P, Lambiase P, Segal O. ORAL ABSTRACTS (3)EP & Ablation31LEFT ATRIAL POSTERIOR WALL ISOLATION (THE “BOX LESION PATTERN”) IN THE TREATMENT OF ATRIAL FIBRILLATION: A SINGLE CENTRE EXPERIENCE32DAY CASE CRYOBLATION (CRYO) FOR PAROXYSMAL ATRIAL FIBRILLATION (pAF) IN THE DISTRICT GENERAL HOSPITAL IS SAFE AND EFFECTIVE IF DONE IN HIGH VOLUME WITH EXPERIENCED OPERATORS33ABLATION INDEX-GUIDED PULMONARY VEIN ISOLATION FOR ATRIAL FIBRILLATION MAY IMPROVE CLINICAL OUTCOMES IN COMPARISON TO CONTACT FORCE-GUIDED ABLATION34THE PROCEDURAL COMPLICATION RATES AND SHORT-TERM SUCCESS RATES OF THORACOSCOPIC AF ABLATION DURING THE INSTITUTIONAL LEARNING CURVE35INITIAL PROCEDURAL RESULTS FROM DDRAMATIC-SVT STUDY: DD MECHANISM IDENTIFICATION AND LOCALISATION USING DIPOLE DENSITY MAPPING TO GUIDE ABLATION STRATEGY36MORBIDITY AND MORTALITY IN MIDDLE-AGED INDIVIDUALS WITH ATRIAL FIBRILLATION: UK BIOBANK DATAClinical EP37THE GM AHSN AF LANDSCAPE TOOL: A SHARED PUBLIC DATA PLATFORM TO PROMOTE QUALITY IMPROVEMENTS AND IDENTIFY OPPORTUNITIES TO PREVENT AF-RELATED STROKE IN THE DEVOLVED GREATER MANCHESTER HEALTH SYSTEM38REAL WORLD PERSISTENCE, ADHERENCE AND SWITCH-OVER ACROSS ANTICOAGULANTS IN ATRIAL FIBRILLATION-A NATIONAL POPULATION-BASED STUDY39ORTHOSTATIC HYPOTENSION AND ATRIAL FIBRILLATION40PREVALENCE OF SHORT QT AND CRITERIA OF SEVERITY IN A YOUNG ASYMPTOMATIC COHORT41SURFACE ELECTROCARDIOGRAPHIC FEATURES AND PREVALENCE OF ARRHYTHMIAS IN PAEDIATRIC FRIEDREICH'S ATAXIA42RISK STRATIFICATION OF TYPE 1 MYOTONIC DYSTROPHY: IS THE ECG ACCURATE ENOUGH TO SELECT PATIENTS AT RISK OF BRADYARRHYTHMIC EVENTS? Europace 2016. [DOI: 10.1093/europace/euw272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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45
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Nairismägi ML, Tan J, Lim JQ, Nagarajan S, Ng CCY, Rajasegaran V, Huang D, Lim WK, Laurensia Y, Wijaya GC, Li ZM, Cutcutache I, Pang WL, Thangaraju S, Ha J, Khoo LP, Chin ST, Dey S, Poore G, Tan LHC, Koh HKM, Sabai K, Rao HL, Chuah KL, Ho YH, Ng SB, Chuang SS, Zhang F, Liu YH, Pongpruttipan T, Ko YH, Cheah PL, Karim N, Chng WJ, Tang T, Tao M, Tay K, Farid M, Quek R, Rozen SG, Tan P, Teh BT, Lim ST, Tan SY, Ong CK. JAK-STAT and G-protein-coupled receptor signaling pathways are frequently altered in epitheliotropic intestinal T-cell lymphoma. Leukemia 2016; 30:1311-9. [PMID: 26854024 PMCID: PMC4895162 DOI: 10.1038/leu.2016.13] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 01/07/2016] [Accepted: 01/18/2016] [Indexed: 12/11/2022]
Abstract
Epitheliotropic intestinal T-cell lymphoma (EITL, also known as type II enteropathy-associated T-cell lymphoma) is an aggressive intestinal disease with poor prognosis and its molecular alterations have not been comprehensively characterized. We aimed to identify actionable easy-to-screen alterations that would allow better diagnostics and/or treatment of this deadly disease. By performing whole-exome sequencing of four EITL tumor-normal pairs, followed by amplicon deep sequencing of 42 tumor samples, frequent alterations of the JAK-STAT and G-protein-coupled receptor (GPCR) signaling pathways were discovered in a large portion of samples. Specifically, STAT5B was mutated in a remarkable 63% of cases, JAK3 in 35% and GNAI2 in 24%, with the majority occurring at known activating hotspots in key functional domains. Moreover, STAT5B locus carried copy-neutral loss of heterozygosity resulting in the duplication of the mutant copy, suggesting the importance of mutant STAT5B dosage for the development of EITL. Dysregulation of the JAK-STAT and GPCR pathways was also supported by gene expression profiling and further verified in patient tumor samples. In vitro overexpression of GNAI2 mutants led to the upregulation of pERK1/2, a member of MEK-ERK pathway. Notably, inhibitors of both JAK-STAT and MEK-ERK pathways effectively reduced viability of patient-derived primary EITL cells, indicating potential therapeutic strategies for this neoplasm with no effective treatment currently available.
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Affiliation(s)
- M-L Nairismägi
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - J Tan
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.,Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - J Q Lim
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - S Nagarajan
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - C C Y Ng
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - V Rajasegaran
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - D Huang
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - W K Lim
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Y Laurensia
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - G C Wijaya
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Z M Li
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - I Cutcutache
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore.,Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - W L Pang
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - S Thangaraju
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - J Ha
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - L P Khoo
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - S T Chin
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - S Dey
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - G Poore
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - L H C Tan
- Department of Pathology, Singapore General Hospital, Singapore, Singapore
| | - H K M Koh
- Advanced Molecular Pathology Laboratory, Singapore Health Services, Singapore, Singapore
| | - K Sabai
- Advanced Molecular Pathology Laboratory, Singapore Health Services, Singapore, Singapore
| | - H-L Rao
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - K L Chuah
- Department of Pathology, Tan Tock Seng Hospital, Singapore, Singapore
| | - Y-H Ho
- Department of Pathology, Tan Tock Seng Hospital, Singapore, Singapore
| | - S-B Ng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Pathology, National University Hospital, National University Health System, Singapore, Singapore
| | - S-S Chuang
- Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan.,Department of Pathology, Taipei Medical University and National Taiwan University, Taipei, Taiwan
| | - F Zhang
- Department of Pathology, Guangdong General Hospital, Guangzhou, China
| | - Y-H Liu
- Department of Pathology, Guangdong General Hospital, Guangzhou, China
| | - T Pongpruttipan
- Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Y H Ko
- Department of Pathology, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - P-L Cheah
- Department of Pathology, University of Malaya, Kuala Lumpur, Malaysia
| | - N Karim
- Department of Pathology, Hospital Raja Permaisuri Bainun, Ipoh, Malaysia
| | - W-J Chng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Department of Haematology-Oncology, National University Hospital, National University Health System, Singapore, Singapore
| | - T Tang
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - M Tao
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - K Tay
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - M Farid
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - R Quek
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - S G Rozen
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore.,Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - P Tan
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Genome Institute of Singapore, A*STAR, Singapore, Singapore
| | - B T Teh
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore.,Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore
| | - S T Lim
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.,Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.,Office of Education, Duke-NUS Medical School, Singapore, Singapore
| | - S-Y Tan
- Department of Pathology, Singapore General Hospital, Singapore, Singapore.,Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Pathology, National University Hospital, National University Health System, Singapore, Singapore.,Department of Pathology, Guangdong General Hospital, Guangzhou, China.,Department of Pathology, University of Malaya, Kuala Lumpur, Malaysia.,Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore
| | - C K Ong
- Lymphoma Genomic Translational Research Laboratory, Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
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Tanvir EM, Afroz R, Chowdhury M, Gan SH, Karim N, Islam MN, Khalil MI. A model of chlorpyrifos distribution and its biochemical effects on the liver and kidneys of rats. Hum Exp Toxicol 2015; 35:991-1004. [PMID: 26519480 DOI: 10.1177/0960327115614384] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study investigated the main target sites of chlorpyrifos (CPF), its effect on biochemical indices, and the pathological changes observed in rat liver and kidney function using gas chromatography/mass spectrometry. Adult female Wistar rats (n = 12) were randomly assigned into two groups (one control and one test group; n = 6 each). The test group received CPF via oral gavage for 21 days at 5 mg/kg daily. The distribution of CPF was determined in various organs (liver, brain, heart, lung, kidney, ovary, adipose tissue, and skeletal muscle), urine and stool samples using GCMS. Approximately 6.18% of CPF was distributed in the body tissues, and the highest CPF concentration (3.80%) was found in adipose tissue. CPF also accumulated in the liver (0.29%), brain (0.22%), kidney (0.10%), and ovary (0.03%). Approximately 83.60% of CPF was detected in the urine. CPF exposure resulted in a significant increase in plasma transaminases, alkaline phosphatase, and total bilirubin levels, a significant reduction in total protein levels and an altered lipid profile. Oxidative stress due to CPF administration was also evidenced by a significant increase in liver malondialdehyde levels. The detrimental effects of CPF on kidney function consisted of a significant increase in plasma urea and creatinine levels. Liver and kidney histology confirmed the observed biochemical changes. In conclusion, CPF bioaccumulates over time and exerts toxic effects on animals.
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Affiliation(s)
- E M Tanvir
- Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Bangladesh Agrochemicals and Environmental Research Division, Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Savar, Bangladesh Department of Biochemistry, Gono Bishwabidyalay, Mirzanagar, Savar, Bangladesh
| | - R Afroz
- Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Bangladesh
| | - Maz Chowdhury
- Agrochemicals and Environmental Research Division, Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Savar, Bangladesh
| | - S H Gan
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - N Karim
- Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Bangladesh
| | - M N Islam
- Agrochemicals and Environmental Research Division, Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Savar, Bangladesh
| | - M I Khalil
- Laboratory of Preventive and Integrative Biomedicine, Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Bangladesh Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
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Ratnasingam J, Karim N, Paramasivam SS, Ibrahim L, Lim LL, Tan ATB, Vethakkan SR, Jalaludin A, Chan SP. Hypothalamic pituitary dysfunction amongst nasopharyngeal cancer survivors. Pituitary 2015; 18:448-55. [PMID: 25134488 DOI: 10.1007/s11102-014-0593-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
PURPOSE Radiation fields for nasopharyngeal cancer (NPC) include the base of skull, which places the hypothalamus and pituitary at risk of damage. We aimed to establish the prevalence, pattern and severity of hypothalamic pituitary (HP) dysfunction amongst NPC survivors. METHODS We studied 50 patients (31 males) with mean age 57 ± 12.2 years who had treatment for NPC between 3 and 21 years (median 8 years) without pre-existing HP disorder from other causes. All patients had a baseline cortisol, fT4, TSH, LH, FSH, oestradiol/testosterone, prolactin and renal function. All patients underwent dynamic testing with insulin tolerance test to assess the somatotroph and corticotroph axes. Baseline blood measurements were used to assess thyrotroph, gonadotroph and lactotroph function. RESULTS Hypopituitarism was present in 82% of patients, 30% single axis, 28% two axes, 18% three axes and 6% four axes deficiencies. Somatotroph deficiency was most common (78%) while corticotroph, gonadotroph and thyrotroph deficiencies were noted in 40% (4 complete/16 partial), 22 and 4% of the patients respectively. Hyperprolactinaemia was present in 30% of patients. The development of HP dysfunction was significantly associated with the time elapsed from irradiation, OR 2.5 (1.2, 5.3), p = 0.02, for every 2 years post treatment. The use of concurrent chemo-irradiation (CCRT) compared to those who had radiotherapy alone was also significantly associated with HP dysfunction, OR 14.5 (2.4, 87.7), p < 0.01. CONCLUSION Despite low awareness and detection rates, HP dysfunction post-NPC irradiation is common. Use of CCRT may augment time related pituitary damage. As these endocrinopathies result in significant morbidity and mortality we recommend periodic assessment of pituitary function amongst NPC survivors.
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Affiliation(s)
- J Ratnasingam
- Endocrine Unit, Department of Medicine, University Malaya Medical Centre, Kuala Lumpur, Malaysia,
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Neil E, Majd N, Morris J, Karim N, Molano J, Colapietro P, Curry R. ED-22 * CONCURRENCE OF GLIOMAS IN PATIENTS WITH MULTIPLE SCLEROSIS: CASE REPORT AND LITERATURE REVIEW. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou253.22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cardoso JC, Cokelaere K, Maertens M, Karim N, Jong TJ, Calonje E. When nonspecific histology can be a clue to the diagnosis: three cases of trigeminal trophic syndrome. Clin Exp Dermatol 2014; 39:596-9. [PMID: 24890685 DOI: 10.1111/ced.12332] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2014] [Indexed: 11/26/2022]
Abstract
Trigeminal trophic syndrome (TTS) is a rare cause of facial ulceration, which is usually associated with damage to the trigeminal nerve pathway, either centrally or peripherally, the most common causes being cerebrovascular accidents and trigeminal nerve ablation procedures. We present three cases of TTS, emphasizing the histopathological features. All three patients presented with facial ulceration. Two patients had a single lesion, and the third had several ulcers. However, in all cases, there was involvement of the nasal ala, and the lesions were strictly unilateral. Histology consistently showed ulceration with signs of severe chronic trauma: scarring, lichenification and/or pseudoepitheliomatous hyperplasia. Diagnosis of TTS can be difficult, and requires close clinicopathological correlation. Histology is important in excluding the majority of possible conditions included in the differential diagnosis, mainly malignancy and infectious processes. Several treatments have been described, but TTS is frequently refractory to treatment.
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Affiliation(s)
- J C Cardoso
- Dermatology Department, University Hospital of Coimbra, Coimbra, Portugal
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Selim S, Rahman R, Yasmin R, Karim N, Chowdhury SH, Lona H, Nabi SG, Shafi T. Risk factors of acute coronary syndrome among Bangladeshi people. Mymensingh Med J 2013; 22:513-521. [PMID: 23982542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Two hundred consecutive patients of acute coronary syndrome aged 30-80 years (inclusive) admitted to the coronary care unit of National institute of Cardiovascular Diseases, Dhaka, were prospectively recruited as cases. Two hundred controls were prospectively selected either from individuals attending in the Shaheed Suhrawardy Medical College Hospital, admitted for elective surgery or in medicine ward for conditions that were unlikely to confound a comparative analysis. The Cases had significantly lower yearly incomes than controls, and significantly higher number of cases is occupied as sedentary worker. Smoking was an important risk factor. About 70% of cases and 45% of controls smoked previously cigarettes. Consumption of non smoke tobacco is another risk factor. The high risk of IHD in developing countries attributed to low consumption of fruit and vegetables, and in our study regular consumption of fruits (taking fruit at least 4 days a week) shows 20.5% cases and 33% of controls (OR 0.524, 95%CI 0.333-0.823) and p value was 0.005. Around 23.5% of the cases were diabetic compared with 4.5% of controls. We found 5% cases and 1.5% controls having known dyslipidemia. Although the body-mass index of cases was 24.68±3.06 Kg/M² and controls 20.54±4.37 Kg/M². The WHR was also significantly greater in cases 0.98±0.05M vs. controls 0.93±0.102M (p<0.001). About 31% of cases and 2% of controls had past history of myocardial infarction. The most predictive independent variables were previous smoking (p<0.001), WHR (p<0.001), history of hypertension (p<0.001), and income (p<0.001). Smoking and WHR were associated with the highest risks. The variables revealed to be significantly associated with acute coronary syndrome by bivariate analyses were all entered into the model directly. Eleven variables entered into the model. Of them Age, occupation, family income (yearly), fruit consumption, known hypertension, known DM, known dyslipidemia, previous MI, previous smoking, BMI and Waist and hip ratio were found to be the independent predictors of acute coronary syndrome. The study found that smoking tobacco, diabetes mellitus, hypertension, visceral obesity and less fruit intake are the important factors of acute coronary syndrome in Bangladesh.
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Affiliation(s)
- S Selim
- Dr Shahjada Selim, Department of Endocrinology & Metabolism, BIRDEM, Dhaka, Bangladesh
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