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1.
Ann Pharm Fr ; 82(2): 203-228, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38159721

RESUMO

The quality pioneer Dr. Joseph M. Juran first proposed the idea of quality by design. According to him, pharmaceutical quality by design is an organised approach to product development that starts with predetermined goals and places an emphasis on product, process understanding, control based on reliable science and quality risk management. The quality of a product or process can typically be affected by a number of input elements. Design of experiments has been employed widely recently to understand the impacts of multidimensional and interactions of input parameters on the output responses of analytical procedures and pharmaceutical goods. Depending on the design of experiments objectives, screening, characterization, or optimization of the process and formulation, a variety of designs, such as factorial or mixture, can be used. The most popular designs used in the stage of screening or factor selection are the 2-Level Factorial and Plackett-Burman designs, both of which have two levels for each factor (k), both economical and effective, and in optimization widely used designs in this step are full factorial at three levels, central composite, Box-Behnken design. The analysis of variance, regression significance, and lack of fit of the regression model were some of the key topics covered in the discussion of the main components of multiple regression model adjustment. Design of experiments is thus the primary element of the formulation and analytical quality by design. The details about design of experiments used for the analysis of pharmaceutical formulation using HPLC.


Assuntos
Gestão de Riscos , Cromatografia Líquida de Alta Pressão/métodos , Preparações Farmacêuticas
2.
J Neuroeng Rehabil ; 20(1): 153, 2023 11 10.
Artigo em Inglês | MEDLINE | ID: mdl-37950249

RESUMO

BACKGROUND: Unilateral stroke leads to asymmetric deficits in movement performance; yet its effects on naturalistic bimanual actions, a key aspect of everyday functions, are understudied. Particularly, how naturalistic bimanual actions that require the two hands to cooperatively interact with each other while manipulating a single common object are planned, executed, and coordinated after stroke is not known. In the present study, we compared the anticipatory planning, execution, and coordination of force between individuals with left and right hemisphere stroke and neurotypical controls in a naturalistic bimanual common-goal task, lifting a box. METHOD: Thirty-three individuals with chronic stroke (15 LCVA, 18 RCVA) and 8 neurotypical age-matched controls used both hands to lift a box fitted with force transducers under unweighted and weighted conditions. Primary dependent variables included measures of anticipation (peak grip and load force rate), execution (peak grip force, load force), and measures of within-hand (grip-load force coordination) and between-hand coordination (force rate cross-correlations). Primary analyses were performed using linear mixed effects modeling. Exploratory backward stepwise regression examined predictors of individual variability within participants with stroke. RESULTS: Participants with stroke, particularly the RCVA group, showed impaired scaling of grip and load force rates with the addition of weight, indicating deficits in anticipatory control. While there were no group differences in peak grip force, participants with stroke showed significant impairments in peak load force and in grip-load force coordination with specific deficits in the evolution of load force prior to object lift-off. Finally, there were differences in spatial coordination of load force rates for participants with stroke, and especially the RCVA group, as compared to controls. Unimanual motor performance of the paretic arm and hemisphere of lesion (right hemisphere) were the key predictors of impairments in anticipatory planning of grip force and bimanual coordination among participants with stroke. CONCLUSIONS: These results suggest that individuals with stroke, particularly those with right hemisphere damage, have impairments in anticipatory planning and interlimb coordination of symmetric cooperative bimanual tasks.


Assuntos
Acidente Vascular Cerebral , Humanos , Acidente Vascular Cerebral/complicações , Mãos , Movimento , Força da Mão , Desempenho Psicomotor , Lateralidade Funcional
3.
J Family Med Prim Care ; 12(8): 1669-1672, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37767453

RESUMO

Background: Immunological Survey or serosurveys have yielded useful information regarding the spread of the COVID-19 pandemic in the general population, but the impact of the continuing pandemic on the medical students in India is yet to be fully recognised. In this study we assessed the students who had received at least two doses of the COVID-19 vaccine for their antibody response. Methodology: A Hospital based, age-stratified, cross-sectional Analytical study design was adopted for the survey, carried out in tribal state of India among medical students. Consecutive sampling method was used where serum samples were tested for antibodies against the SARS-CoV-2 nucleocapsid (N) protein. Result: The vaccinee group comprised of 187 students mostly aged between 18-23 years 68.4% were females, 56.6 % were vaccinated with covishield. The mean IgG (Immunoglobin G) titre was 7343.74 AU/Ml, less than 1000 AU/Ml was found in 8% of participants, while more than 8000 AU/Ml was found in 32.1%. Participants who got the covaxin vaccine had a higher median IgG titre (median 6491.8 AU/mL, interquartile range 8898 AU/mL).The antibody titre of male was 0.328 times lower than that of female. Conclusion: Despite the fact that covishield's mean antibody titre was higher, covaxin's protection lasted longer.

4.
Behav Sci (Basel) ; 13(8)2023 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-37622821

RESUMO

The purpose of this study was to quantify characteristics of bimanual movement intensity during 30 h of hand-arm bimanual intensive therapy (HABIT) and bimanual performance (activities and participation) in real-world settings using accelerometers in children with unilateral cerebral palsy (UCP). Twenty-five children with UCP participated in a 30 h HABIT program. Data were collected from bilateral wrist-worn accelerometers during 30 h of HABIT to quantify the movement intensity and three days pre- and post-HABIT to assess real-world performance gains. Movement intensity and performance gains were measured using six standard accelerometer-derived variables. Bimanual capacity (body function and activities) was assessed using standardized hand function tests. We found that accelerometer variables increased significantly during HABIT, indicating increased bimanual symmetry and intensity. Post-HABIT, children demonstrated significant improvements in all accelerometer metrics, reflecting real-world performance gains. Children also achieved significant and clinically relevant changes in hand capacity following HABIT. Therefore, our findings suggest that accelerometers can objectively quantify bimanual movement intensity during HABIT. Moreover, HABIT enhances hand function as well as activities and participation in real-world situations in children with UCP.

5.
Sci Rep ; 13(1): 11052, 2023 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-37422487

RESUMO

The considerable improvement of technology produced for various applications has resulted in a growth in data sizes, such as healthcare data, which is renowned for having a large number of variables and data samples. Artificial neural networks (ANN) have demonstrated adaptability and effectiveness in classification, regression, and function approximation tasks. ANN is used extensively in function approximation, prediction, and classification. Irrespective of the task, ANN learns from the data by adjusting the edge weights to minimize the error between the actual and predicted values. Back Propagation is the most frequent learning technique that is used to learn the weights of ANN. However, this approach is prone to the problem of sluggish convergence, which is especially problematic in the case of Big Data. In this paper, we propose a Distributed Genetic Algorithm based ANN Learning Algorithm for addressing challenges associated with ANN learning for Big data. Genetic Algorithm is one of the well-utilized bio-inspired combinatorial optimization methods. Also, it is possible to parallelize it at multiple stages, and this may be done in an extremely effective manner for the distributed learning process. The proposed model is tested with various datasets to evaluate its realizability and efficiency. The results obtained from the experiments show that after a specific volume of data, the proposed learning method outperformed the traditional methods in terms of convergence time and accuracy. The proposed model outperformed the traditional model by almost 80% improvement in computational time.


Assuntos
Big Data , Redes Neurais de Computação , Algoritmos
6.
Heliyon ; 9(6): e16498, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37292344

RESUMO

The knowledge of powder properties has been highlighted since the 19th century since most formulations focus on solid dosage forms, and powder flow is essential for various manufacturing operations. A poor powder flow may generate problems in the manufacturing processes and cause the plant's malfunction. Hence these problems should be studied and rectified beforehand by various powder flow techniques to improve and enhance powder flowability. The powder's physical properties can be determined using compendial and non-compendial methods. The non-compendial practices generally describe the powder response under the stress and shear experienced during their processing. The primary interest of the current report is to summarize the flow problems and enlist the techniques to eliminate the issues associated with the powder's flow properties, thereby increasing plant output and minimizing the production process inconvenience with excellent efficiency. In this review, we discuss powder flow and its measurement techniques and mainly focus on various approaches to improve the cohesive powder flow property.

7.
Heliyon ; 9(4): e15404, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37128342

RESUMO

The present work deals with QbD-based development of FEB-loaded nanoemulsion (FEB-NE) in order to enhance bioavailability and permeability. In the beginning, the risk assessment was performed on different experimental variables using the Ishikawa diagram followed by FMEA study in order to find critical process parameter (CPP) and critical material attributes (CMAs). To build quality in nanoemulsion, the quality target product profiles (QTPP) and critical quality attributes (CQAs) were determined. The different batches of FEB-NE were produced by the microemulsification-probe sonication method. Effect of varying levels of independent variables such as oil concentration (X1), Smix concentration (X3), and amplitude (X3) on responses such as globule size (Y1), zeta potential (Y2), and entrapment efficiency (Y3) were studied using Box-Behnken design (BDD). FEB-NE formulation was optimized using a graphical and numerical method. The optimized formulation concentrations and their responses (CQAs) were located as design space in an overlay plot. The spherical shapes of globules were visualized by surface morphology using AFM and TEM. In vitro dissolution study showed 93.32% drug release from the optimized FEB-NE formulation. The drug release mechanism followed by the formulation was the Higuchi-matrix kinetics with a regression coefficient of 0.9236 (R2). FEB-NE showed enhanced permeability using PAMPA (artificial non-cell membrane) and everted gut sac model method. The developed optimized FEB-NE exhibited the enhancement of bioavailability by 2.48 fold as compared to FEB-suspension using Wistar rats suggesting improvement of solubility of a lipophilic drug. The optimized batch remained stable for 90 days at 4 °C and 25 °C. Thus, QbD-based development of FEB-NE can be useful for a better perspective on a commercial scale.

8.
J Org Chem ; 2022 Dec 19.
Artigo em Inglês | MEDLINE | ID: mdl-36534041

RESUMO

In this work, a 2H-pyran-2-one-functionalized diketopyrrolopyrrole (DPP) (coded as receptor 1) was designed, synthesized, and fully characterized by various spectroscopic methods. The physical properties of molecular architecture 1 were studied employing theoretical calculations. Receptor 1 was elegantly scrutinized for the sensing of explosive nitroaromatic compounds (NACs). Receptor 1 exhibited detection of nitro explosives, i.e., picric acid (PA), 2,4-dinitrophenol (DNP), and nitrophenol (NP), via the fluorescence quenching mechanism. The Stern-Volmer equation was employed to evaluate the effectiveness of the quenching process. It was found that 1 exhibited a detection limit of about 7.58 × 10-5, 8.35 × 10-5, and 9.05 × 10-5 M toward PA, DNP, and NP, respectively. The influence of interfering metal ions and anions on PA detection was investigated thoroughly. Furthermore, receptor 1-based low-cost fluorescent thin-layer chromatography (TLC) plates were developed for the recognition of PA.

9.
Heliyon ; 8(11): e11489, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36411885

RESUMO

Despite being recognized as the "gold standard" for treating azole-resistant vulvovaginal candidiasis, amphotericin B (AmB), an amphoteric molecule, has not been widely used due to serious issues with solubility and permeability. In light of the aforementioned, the objective of the present study was to increase AmB's therapeutic efficacy by formulating it into an o/w nanoemulsion (AmB-NE) system. Furthermore, to facilitate AmB-NE's retention within the vaginal cavity, it was loaded into a mixture of Carbopol® 974P and Aloe vera-based gel (CA gel). Briefly, in the present study, a kinetically stable batch of formulated AmB-NE having a globule size of 76.52 ± 3.11 nm, PDI of 0.342 ± 0.032, and zeta potential of -22.32 ± 0.88 mV was incorporated into the CA gel base. This AmB-NE loaded gel (AmB-NE gel) exhibited a non-Fickian/anomalous diffusion from the hydrophilic matrix. The texture analysis of AmB-NE gel revealed that the prepared gel was a non-drip, soft, easy to spread, and sufficiently cohesive gel that could reside in the vaginal cavity, which was confirmed by our ex-vivo retention test, which revealed that AmB-NE loaded gel could stay in the vaginal cavity for approximately 11 h. Ex-vivo skin permeation studies revealed that AmB-NE is 4.26 times more permeable than AmB-coarse gel, implying that AmB-NE facilitates AmB entry into the vaginal epithelial layers. Furthermore, in-vivo vaginal lavage studies revealed that AmB-NE gel permeated 7.03-fold more than AmB-coarse gel. Prepared AmB-NE gel was stable in refrigerated condition and showed no histopathological toxicity. Thus, the present study suggests that AmB-NE gel could eliminate the existing problem of AmB and that it could serve as an alternative option to treat vulvovaginal candidiasis.

10.
Plants (Basel) ; 11(19)2022 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-36235351

RESUMO

White root rot disease, caused by Rosellinia necatrix, poses a threat to several tree crops; hence, effective and sustainable strategies to control this disease remain warranted. This study identified an effective R. necatrix biocontrol agent by isolating 32 strains from soil samples collected from white root rot-infested organic pear orchards, among which RDA1 exhibited the most potent growth-inhibitory effects. Microbiological and 16S rRNA gene sequencing analyses revealed that the bacterial isolate belonged to the Bacillus genus and exhibited 100% nucleotide sequence similarity with Bacillus velezensis species in the GenBank. This strain showed strong antifungal activity against four Rosellinia necatrix strains and harbored genes essential for lipopeptide, polyketide, and tripeptide bacilysin biosynthesis. RDA1 produced volatile compounds that suppressed the development of phytopathogens and possessed plant growth-promoting traits, such as phosphate solubilization, and indole-3-acetic acid and siderophore production. B. velezensis RDA1 has a significant potential application in sustainable agriculture and can be used to suppress white root rot disease infections and to improve plant growth.

11.
Chem Asian J ; 17(23): e202200887, 2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-36163645

RESUMO

In this paper, we report the design and synthesis of three naphthalene diimide- (NDI) and anthraquinone- (AQ) based organic chromophores derived from direct arylation reactions; NDI-AQ, AQ-NDI-AQ and NDI-AQ-NDI. Compared to classic cross-coupling reactions, this method reduced the number of synthetic and purification steps. The chemical structures, photophysical and electrochemical properties of these molecules were characterized using UV-vis spectroscopy, fluorescence emission spectroscopy and cyclic voltammetry (CV). The optoelectronic properties of the three dyes enabled the fabrication of organic thin film transistors (OTFTs). The fabricated OTFTs displayed good n-type semiconducting properties, with electron mobilities ( µ e ${{\mu }_{e}}$ ) of 1.5-4.2×10-4  cm2  V-1 s-1 .

12.
AAPS PharmSciTech ; 23(4): 110, 2022 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-35411421

RESUMO

We report herein the design of a solid self-microemulsifying drug delivery system (SMEDDS) of vitamin D3 for augmentation of its solubility and dissolution. The studies employed a 32 full factorial design by employing JMP 13.2.1, software for preparation of liquid SMEDDS. Further, the prediction profiler was utilized to optimized liquid SMEDDS-Vit.D3 (OF) formulation. The solidification of liquid SMEDDS-Vit.D3 formulation was carried out by physical adsorption over Neusilin US2 and Aerosil 200 carriers. Solid-state evaluation of SMEDDS-Vit.D3 suggested the transformation of crystalline to amorphous form of Vit.D3 which is responsible for imparting more aqueous solubility and thus enhancement in dissolution behaviour. The investigation of flow behaviours viz. flow function (FF) and effective angle of wall friction (EAWF) of solid SMEDDS-Vit.D3 was performed using powder flow tester. Solid SMEDDS-Vit.D3 prepared using Neusilin US2 showed good flow behaviour and hence was developed into tablets. The tablets showed good quality control parameters as per pharmacopeial standards. The in vitro dissolution studies demonstrated more dissolution of Vit.D3 in SMEDDS (liquid, solid, and tablet) when compared to the unprocessed drug. The shelf life (T90) of tablets was reported to be 28.12 months suggesting excellent stability of Vit.D3 in solid SMEDDS. In nutshell, our research works explore the utilization of SMEDDS for the oral delivery of Vit.D3 to gain maximum health-related benefits.


Assuntos
Colecalciferol , Sistemas de Liberação de Medicamentos , Emulsões/química , Solubilidade , Comprimidos
13.
Phys Ther ; 102(4)2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-35079833

RESUMO

When people experience or expect pain, they move differently. Pain-altered movement strategies, collectively described here as pain-related movement dysfunction (PRMD), may persist well after pain resolves and, ultimately, may result in altered kinematics and kinetics, future reinjury, and disability. Although PRMD may manifest as abnormal movements that are often evident in clinical assessment, the underlying mechanisms are complex, engaging sensory-perceptual, cognitive, psychological, and motor processes. Motor control theories provide a conceptual framework to determine, assess, and target processes that contribute to normal and abnormal movement and thus are important for physical therapy and rehabilitation practice. Contemporary understanding of motor control has evolved from reflex-based understanding to a more complex task-dependent interaction between cognitive and motor systems, each with distinct neuroanatomic substrates. Though experts have recognized the importance of motor control in the management of painful conditions, there is no comprehensive framework that explicates the processes engaged in the control of goal-directed actions, particularly in the presence of pain. This Perspective outlines sensory-perceptual, cognitive, psychological, and motor processes in the contemporary model of motor control, describing the neural substrates underlying each process and highlighting how pain and anticipation of pain influence motor control processes and consequently contribute to PRMD. Finally, potential lines of future inquiry-grounded in the contemporary model of motor control-are outlined to advance understanding and improve the assessment and treatment of PRMD. IMPACT: This Perspective proposes that approaching PRMD from a contemporary motor control perspective will uncover key mechanisms, identify treatment targets, inform assessments, and innovate treatments across sensory-perceptual, cognitive, and motor domains, all of which have the potential to improve movement and functional outcomes in patients with painful conditions.


Assuntos
Formação de Conceito , Movimento , Fenômenos Biomecânicos , Humanos , Dor
14.
Thanh-N. NGUYEN; Muhammad-M. QURESHI; Piers KLEIN; Hiroshi YAMAGAMI; Mohamad ABDALKADER; Robert MIKULIK; Anvitha SATHYA; Ossama-Yassin MANSOUR; Anna CZLONKOWSKA; Hannah LO; Thalia-S. FIELD; Andreas CHARIDIMOU; Soma BANERJEE; Shadi YAGHI; James-E. SIEGLER; Petra SEDOVA; Joseph KWAN; Diana-Aguiar DE-SOUSA; Jelle DEMEESTERE; Violiza INOA; Setareh-Salehi OMRAN; Liqun ZHANG; Patrik MICHEL; Davide STRAMBO; João-Pedro MARTO; Raul-G. NOGUEIRA; Espen-Saxhaug KRISTOFFERSEN; Georgios TSIVGOULIS; Virginia-Pujol LEREIS; Alice MA; Christian ENZINGER; Thomas GATTRINGER; Aminur RAHMAN; Thomas BONNET; Noémie LIGOT; Sylvie DE-RAEDT; Robin LEMMENS; Peter VANACKER; Fenne VANDERVORST; Adriana-Bastos CONFORTO; Raquel-C.T. HIDALGO; Daissy-Liliana MORA-CUERVO; Luciana DE-OLIVEIRA-NEVES; Isabelle LAMEIRINHAS-DA-SILVA; Rodrigo-Targa MARTÍNS; Letícia-C. REBELLO; Igor-Bessa SANTIAGO; Teodora SADELAROVA; Rosen KALPACHKI; Filip ALEXIEV; Elena-Adela CORA; Michael-E. KELLY; Lissa PEELING; Aleksandra PIKULA; Hui-Sheng CHEN; Yimin CHEN; Shuiquan YANG; Marina ROJE-BEDEKOVIC; Martin ČABAL; Dusan TENORA; Petr FIBRICH; Pavel DUŠEK; Helena HLAVÁČOVÁ; Emanuela HRABANOVSKA; Lubomír JURÁK; Jana KADLČÍKOVÁ; Igor KARPOWICZ; Lukáš KLEČKA; Martin KOVÁŘ; Jiří NEUMANN; Hana PALOUŠKOVÁ; Martin REISER; Vladimir ROHAN; Libor ŠIMŮNEK; Ondreij SKODA; Miroslav ŠKORŇA; Martin ŠRÁMEK; Nicolas DRENCK; Khalid SOBH; Emilie LESAINE; Candice SABBEN; Peggy REINER; Francois ROUANET; Daniel STRBIAN; Stefan BOSKAMP; Joshua MBROH; Simon NAGEL; Michael ROSENKRANZ; Sven POLI; Götz THOMALLA; Theodoros KARAPANAYIOTIDES; Ioanna KOUTROULOU; Odysseas KARGIOTIS; Lina PALAIODIMOU; José-Dominguo BARRIENTOS-GUERRA; Vikram HUDED; Shashank NAGENDRA; Chintan PRAJAPATI; P.N. SYLAJA; Achmad-Firdaus SANI; Abdoreza GHOREISHI; Mehdi FARHOUDI; Elyar SADEGHI-HOKMABADI; Mazyar HASHEMILAR; Sergiu-Ionut SABETAY; Fadi RAHAL; Maurizio ACAMPA; Alessandro ADAMI; Marco LONGONI; Raffaele ORNELLO; Leonardo RENIERI; Michele ROMOLI; Simona SACCO; Andrea SALMAGGI; Davide SANGALLI; Andrea ZINI; Kenichiro SAKAI; Hiroki FUKUDA; Kyohei FUJITA; Hirotoshi IMAMURA; Miyake KOSUKE; Manabu SAKAGUCHI; Kazutaka SONODA; Yuji MATSUMARU; Nobuyuki OHARA; Seigo SHINDO; Yohei TAKENOBU; Takeshi YOSHIMOTO; Kazunori TOYODA; Takeshi UWATOKO; Nobuyuki SAKAI; Nobuaki YAMAMOTO; Ryoo YAMAMOTO; Yukako YAZAWA; Yuri SUGIURA; Jang-Hyun BAEK; Si-Baek LEE; Kwon-Duk SEO; Sung-Il SOHN; Jin-Soo LEE; Anita-Ante ARSOVSKA; Chan-Yong CHIEH; Wan-Asyraf WAN-ZAIDI; Wan-Nur-Nafisah WAN-YAHYA; Fernando GONGORA-RIVERA; Manuel MARTINEZ-MARINO; Adrian INFANTE-VALENZUELA; Diederik DIPPEL; Dianne-H.K. VAN-DAM-NOLEN; Teddy-Y. WU; Martin PUNTER; Tajudeen-Temitayo ADEBAYO; Abiodun-H. BELLO; Taofiki-Ajao SUNMONU; Kolawole-Wasiu WAHAB; Antje SUNDSETH; Amal-M. AL-HASHMI; Saima AHMAD; Umair RASHID; Liliana RODRIGUEZ-KADOTA; Miguel-Ángel VENCES; Patrick-Matic YALUNG; Jon-Stewart-Hao DY; Waldemar BROLA; Aleksander DĘBIEC; Malgorzata DOROBEK; Michal-Adam KARLINSKI; Beata-M. LABUZ-ROSZAK; Anetta LASEK-BAL; Halina SIENKIEWICZ-JAROSZ; Jacek STASZEWSKI; Piotr SOBOLEWSKI; Marcin WIĄCEK; Justyna ZIELINSKA-TUREK; André-Pinho ARAÚJO; Mariana ROCHA; Pedro CASTRO; Patricia FERREIRA; Ana-Paiva NUNES; Luísa FONSECA; Teresa PINHO-E-MELO; Miguel RODRIGUES; M-Luis SILVA; Bogdan CIOPLEIAS; Adela DIMITRIADE; Cristian FALUP-PECURARIU; May-Adel HAMID; Narayanaswamy VENKETASUBRAMANIAN; Georgi KRASTEV; Jozef HARING; Oscar AYO-MARTIN; Francisco HERNANDEZ-FERNANDEZ; Jordi BLASCO; Alejandro RODRÍGUEZ-VÁZQUEZ; Antonio CRUZ-CULEBRAS; Francisco MONICHE; Joan MONTANER; Soledad PEREZ-SANCHEZ; María-Jesús GARCÍA-SÁNCHEZ; Marta GUILLÁN-RODRÍGUEZ; Gianmarco BERNAVA; Manuel BOLOGNESE; Emmanuel CARRERA; Anchalee CHUROJANA; Ozlem AYKAC; Atilla-Özcan ÖZDEMIR; Arsida BAJRAMI; Songul SENADIM; Syed-I. HUSSAIN; Seby JOHN; Kailash KRISHNAN; Robert LENTHALL; Kaiz-S. ASIF; Kristine BELOW; Jose BILLER; Michael CHEN; Alex CHEBL; Marco COLASURDO; Alexandra CZAP; Adam-H. DE-HAVENON; Sushrut DHARMADHIKARI; Clifford-J. ESKEY; Mudassir FAROOQUI; Steven-K. FESKE; Nitin GOYAL; Kasey-B. GRIMMETT; Amy-K. GUZIK; Diogo-C. HAUSSEN; Majesta HOVINGH; Dinesh JILLELA; Peter-T. KAN; Rakesh KHATRI; Naim-N. KHOURY; Nicole-L. KILEY; Murali-K. KOLIKONDA; Stephanie LARA; Grace LI; Italo LINFANTE; Aaron-I. LOOCHTAN; Carlos-D. LOPEZ; Sarah LYCAN; Shailesh-S. MALE; Fadi NAHAB; Laith MAALI; Hesham-E. MASOUD; Jiangyong MIN; Santiago ORGETA-GUTIERREZ; Ghada-A. MOHAMED; Mahmoud MOHAMMADEN; Krishna NALLEBALLE; Yazan RADAIDEH; Pankajavalli RAMAKRISHNAN; Bliss RAYO-TARANTO; Diana-M. ROJAS-SOTO; Sean RULAND; Alexis-N. SIMPKINS; Sunil-A. SHETH; Amy-K. STAROSCIAK; Nicholas-E. TARLOV; Robert-A. TAYLOR; Barbara VOETSCH; Linda ZHANG; Hai-Quang DUONG; Viet-Phuong DAO; Huynh-Vu LE; Thong-Nhu PHAM; Mai-Duy TON; Anh-Duc TRAN; Osama-O. ZAIDAT; Paolo MACHI; Elisabeth DIRREN; Claudio RODRÍGUEZ-FERNÁNDEZ; Jorge ESCARTÍN-LÓPEZ; Jose-Carlos FERNÁNDEZ-FERRO; Niloofar MOHAMMADZADEH; Neil-C. SURYADEVARA,-MD; Beatriz DE-LA-CRUZ-FERNÁNDEZ; Filipe BESSA; Nina JANCAR; Megan BRADY; Dawn SCOZZARI.
Journal of Stroke ; : 256-265, 2022.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-938173

RESUMO

Background@#and Purpose Recent studies suggested an increased incidence of cerebral venous thrombosis (CVT) during the coronavirus disease 2019 (COVID-19) pandemic. We evaluated the volume of CVT hospitalization and in-hospital mortality during the 1st year of the COVID-19 pandemic compared to the preceding year. @*Methods@#We conducted a cross-sectional retrospective study of 171 stroke centers from 49 countries. We recorded COVID-19 admission volumes, CVT hospitalization, and CVT in-hospital mortality from January 1, 2019, to May 31, 2021. CVT diagnoses were identified by International Classification of Disease-10 (ICD-10) codes or stroke databases. We additionally sought to compare the same metrics in the first 5 months of 2021 compared to the corresponding months in 2019 and 2020 (ClinicalTrials.gov Identifier: NCT04934020). @*Results@#There were 2,313 CVT admissions across the 1-year pre-pandemic (2019) and pandemic year (2020); no differences in CVT volume or CVT mortality were observed. During the first 5 months of 2021, there was an increase in CVT volumes compared to 2019 (27.5%; 95% confidence interval [CI], 24.2 to 32.0; P<0.0001) and 2020 (41.4%; 95% CI, 37.0 to 46.0; P<0.0001). A COVID-19 diagnosis was present in 7.6% (132/1,738) of CVT hospitalizations. CVT was present in 0.04% (103/292,080) of COVID-19 hospitalizations. During the first pandemic year, CVT mortality was higher in patients who were COVID positive compared to COVID negative patients (8/53 [15.0%] vs. 41/910 [4.5%], P=0.004). There was an increase in CVT mortality during the first 5 months of pandemic years 2020 and 2021 compared to the first 5 months of the pre-pandemic year 2019 (2019 vs. 2020: 2.26% vs. 4.74%, P=0.05; 2019 vs. 2021: 2.26% vs. 4.99%, P=0.03). In the first 5 months of 2021, there were 26 cases of vaccine-induced immune thrombotic thrombocytopenia (VITT), resulting in six deaths. @*Conclusions@#During the 1st year of the COVID-19 pandemic, CVT hospitalization volume and CVT in-hospital mortality did not change compared to the prior year. COVID-19 diagnosis was associated with higher CVT in-hospital mortality. During the first 5 months of 2021, there was an increase in CVT hospitalization volume and increase in CVT-related mortality, partially attributable to VITT.

15.
Prog Mol Biol Transl Sci ; 185: 199-223, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34782106

RESUMO

In recent years aggregation induced emission (AIE) concept has attracted researcher's interest worldwide. Several organic building blocks are developed as AIE materials. This chapter discusses the patented AIE material and their utilization related in biological, medicinal and biotechnology fields. It is demonstrated that AIE chromophores such as tetraphenylethylene (TPE) as well as other AIE building blocks became important fluorescent emissive bioactive materials. Such emissive materials are widely employed as bioprobes for the detection of mitochondria, cellular imaging and tracking, protein carrier detection of S-phase DNA, detection of d-glucose, visualization of cancer treatment, drug screening, image-guided therapy, bacterial imaging, photodynamic therapy and drug screening. Such AIE materials upon imaging in cellular environment displays significant enhancement of fluorescence emission. Such patented AIE chromophores has a great potential for bioimaging and biomedical applications. In this chapter we compile some patented representative examples to explore their bioimaging/medicinal imaging applications since lot of new inventions are reported every day.


Assuntos
Técnicas Biossensoriais , Corantes Fluorescentes , Humanos , Mitocôndrias
16.
Indian J Med Microbiol ; 39(4): 537-539, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34045083

RESUMO

There is a need for understanding and establishment of the most appropriate testing algorithm for COVID-19 diagnosis in asymptomatic high-risk groups. Here, we present a retrospective analysis of RT-PCR results obtained from 412 cases tested negative for coronavirus disease 2019 (COVID-19) by rapid antigen testing method. Among 178 (43.2%) asymptomatic individuals, 44.9% of the high risk contacts, 12.2% of police custody individuals, 22.22% of the pregnant women and 33.33% of individuals hospitalised for preoperative or other medical conditions showed RT-PCR positivity. Our results suggest a need for focussed and intensive (multi-modality) testing in groups at high risk for SARS-CoV-2 infection.


Assuntos
Teste para COVID-19 , COVID-19 , COVID-19/diagnóstico , Teste de Ácido Nucleico para COVID-19 , Teste para COVID-19/métodos , Gerenciamento Clínico , Feminino , Humanos , Índia , Gravidez , Estudos Retrospectivos , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Sensibilidade e Especificidade
17.
ChemistryOpen ; 10(4): 414-420, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33543836

RESUMO

In this paper, we described the design, synthesis, and characterization of two novel naphthalene diimide (NDI) core-based targets modified with terminal fullerene (C60 ) yield - so called S4 and S5, in which NDI bearing 1 and 2 molecules of C60 , respectively. The absorption, electrochemical and thin-film transistor characteristics of the newly developed targets were investigated in detail. Both S4 and S5 displayed broad absorption in the 450-500 nm region, owing to the effect of conjugation due to fullerene functionalities. The electrochemical measurement suggested that the HOMO and the LUMO energy levels can be altered with the number of C60 units. Both S4 and S5 were employed as organic semiconductor materials in n-channel transistors. The thin film transistor based on S4 exhibited superior electron mobility (µe) values ranging from 1.20×10-4 to 3.58×10-4  cm2  V-1 s-1 with a current on-off ratio varying from 102 to 103 in comparison with the performance of S5 based transistor, which exhibited µe ranging from 8.33×10-5 to 2.03×10-4  cm2  V-1 s-1 depending on channel lengths.

18.
Int J Biol Macromol ; 171: 514-526, 2021 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-33428954

RESUMO

The Alginate-Neusilin US2 micro-composite (MC) beads were fabricated and optimized for oral delivery of hesperidin (HES). A 32 full factorial design encompassing independent variables (factors) such as the concentration of sodium alginate (X1), and Neusilin US2 (X2) and dependant variables (response) such as particle size (Y1), entrapment efficiency (Y2), and swelling degree (Y3). Nine batches were prepared by formulation design employing statistical software JMP 13.2.1. The multiple regression analysis (MLRA) was carried to explore the influence of factor over responses. Further, a prediction profiler was used to trace the optimum concentration of factors based on desirable responses. The optimized beads (OF) were characterized for their morphology and size by motic microscopy and scanning electron microscopy. In vitro release, kinetic studies were performed in simulated gastric and intestinal fluids. In vivo pharmacokinetic studies revealed better absorption of HES from optimized beads (OF) compared to HES suspension which could be due to the prevention of acidic degradation of HES in the stomach. The estimated shelf life of OF formulation was found to be 3.86 years suggested better stability after fabrication. In a nutshell, the developed micro-composite beads of HES could be a better alternative for promising oral sustained delivery of HES.


Assuntos
Alginatos/química , Compostos de Alumínio/química , Portadores de Fármacos/química , Suco Gástrico/metabolismo , Hesperidina/administração & dosagem , Compostos de Magnésio/química , Silicatos/química , Administração Oral , Alginatos/administração & dosagem , Alginatos/farmacocinética , Compostos de Alumínio/administração & dosagem , Compostos de Alumínio/farmacocinética , Animais , Líquidos Corporais/metabolismo , Técnicas de Química Analítica , Portadores de Fármacos/administração & dosagem , Portadores de Fármacos/farmacocinética , Composição de Medicamentos , Liberação Controlada de Fármacos , Estabilidade de Medicamentos , Hesperidina/farmacocinética , Intestinos , Cinética , Compostos de Magnésio/administração & dosagem , Compostos de Magnésio/farmacocinética , Masculino , Microscopia Eletrônica de Varredura , Microesferas , Tamanho da Partícula , Ratos Wistar , Silicatos/administração & dosagem , Silicatos/farmacocinética
19.
J Microencapsul ; 38(1): 61-79, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33245007

RESUMO

AIM: The present study endeavours to develop a solid self-microemulsifying nutraceutical drug delivery system for hesperidin (HES) using quality by design (QbD) to improve its biopharmaceutical attributes. METHODS: A 32 full factorial design was employed to study the influence of factors on selected responses. Risk assessment was performed by portraying Ishikawa fishbone diagram and failure mode effect analysis (FMEA). The in vivo antidiabetic study was carried on induced diabetic rats. RESULTS: The optimised liquid SMEDDS-HES (OF) formulation showed emulsification time (Y 1) = 102.5 ± 2.52 s, globule size (Y 2) = 225.2 ± 3.40 nm, polydispersity index (Y 3) = 0.294 ± 0.62, and zeta potential (Y 4) = -25.4 ± 1.74 mV, respectively. The solid SMEDDS-HES (SOF-7) formulation was characterised by FTIR, PXRD, DSC, and SEM. The shelf life of SOF-7 was found to be 32.88 months. The heamatological and histopathological data of diabetic rats showed prominent antidiabetic activity. CONCLUSIONS: The optimised formulation showed improved dissolution, desired stability, and promising antidiabetic activity.


Assuntos
Produtos Biológicos/administração & dosagem , Suplementos Nutricionais , Emulsificantes/administração & dosagem , Hesperidina/administração & dosagem , Adsorção , Animais , Varredura Diferencial de Calorimetria , Química Farmacêutica/métodos , Sistemas de Liberação de Medicamentos , Emulsões , Excipientes , Hipoglicemiantes , Técnicas In Vitro , Masculino , Modelos Estatísticos , Pâncreas/efeitos dos fármacos , Pâncreas/patologia , Ratos , Ratos Wistar , Reprodutibilidade dos Testes , Medição de Risco , Solubilidade , Tensoativos , Termodinâmica , Difração de Raios X
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