LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 30

Search options

  1. Article ; Online: Comparing Rates of Radiographic Baseplate Loosening Between Cement and Cementless INFINITY Total Ankle Prostheses.

    Millstein, Ian Daniel / Koneru, Manisha / Dibato, John Epoh / Gentile, Pietro / Mahjoub, Adel / Freeland, Erik

    Foot & ankle specialist

    2024  , Page(s) 19386400241247456

    Abstract: Introduction: Total ankle replacement is indicated for end-stage ankle osteoarthritis. Periprosthetic radiolucency, from separation between the bone and implant, is suggested to be indicative of potential prosthesis failure risk. Anchoring implants with ...

    Abstract Introduction: Total ankle replacement is indicated for end-stage ankle osteoarthritis. Periprosthetic radiolucency, from separation between the bone and implant, is suggested to be indicative of potential prosthesis failure risk. Anchoring implants with cement may mitigate this. This study aimed to compare rates of periprosthetic radiolucency between patients with cement-affixed and cementless implants.
    Methods: A retrospective analysis was performed on 28 patients who underwent total ankle replacement with the INFINITY Total Ankle System (Wright Medical, Memphis, Tennessee) implant between January 2016 and May 2022. Anteroposterior, mortise, and lateral ankle X-rays were reviewed by 2 independent reviewers for tibiotalar angle, talar tilt, and periprosthetic radiolucency. The Wilcoxon rank-sum test and chi-square test were performed.
    Results: The incidence of periprosthetic radiolucency at the most recent follow-up did not significantly differ between cement and cementless groups (57.1% in both groups, P = 1.0). Follow-up tibiotalar and talar tilt angles were not significantly different (P > .51 for all comparisons).
    Conclusions: Patients with cemented implants had a similar incidence of periprosthetic radiolucency compared with patients with cementless prostheses. Understanding of long-term clinical outcomes will help inform optimal operative approaches for ankle prostheses.
    Levels of evidence: Therapeutic, Level III, Retrospective cohort study.
    Language English
    Publishing date 2024-04-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2488579-4
    ISSN 1938-7636 ; 1938-6400
    ISSN (online) 1938-7636
    ISSN 1938-6400
    DOI 10.1177/19386400241247456
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Arthroscopy and Micronized Allogenic Cartilage Matrix Grafting for a Missed Talus Nonunion: A Case Report.

    Mathew, Justin / Mahjoub, Adel / Freeland, Erik

    JBJS case connector

    2022  Volume 12, Issue 1

    Abstract: Case: A 33-year-old man who had experienced polytraumatic injury from a motorcycle collision 5 months previously presented to the clinic with right ankle pain. On physical examination, anterior ankle tenderness was present, and imaging revealed a ... ...

    Abstract Case: A 33-year-old man who had experienced polytraumatic injury from a motorcycle collision 5 months previously presented to the clinic with right ankle pain. On physical examination, anterior ankle tenderness was present, and imaging revealed a previously unrecognized nondisplaced talar body fracture with a chondral defect. The patient underwent arthroscopy of the right ankle, which influenced the senior author to perform a medial malleolar osteotomy and subsequent open reduction internal fixation with micronized allogenic cartilage matrix.
    Conclusion: Arthroscopy provides valuable information for the surgical planning of talar nonunions, and allogenic cartilage matrix graft may provide benefit with associated chondral defects.
    MeSH term(s) Adult ; Ankle Joint/surgery ; Arthroscopy/methods ; Cartilage ; Humans ; Male ; Osteotomy/methods ; Talus/diagnostic imaging ; Talus/surgery
    Language English
    Publishing date 2022-03-09
    Publishing country United States
    Document type Case Reports ; Journal Article
    ISSN 2160-3251
    ISSN (online) 2160-3251
    DOI e21.00608
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article: Development of Abrasives from Non-woven Based on Used Textiles

    Elaissi, Arwa / Alibi, Hamza / Jabli, Mahjoub / Ghith, Adel

    Journal of natural fibers. 2022 June 03, v. 19, no. 6

    2022  

    Abstract: In this paper, the development of a new composite as an abrasive material was reported. The composite was constituted of iron shavings as grains, a prepared non-woven from cellulosic fibers waste as support and a polyurethane resin as matrix. The studied ...

    Abstract In this paper, the development of a new composite as an abrasive material was reported. The composite was constituted of iron shavings as grains, a prepared non-woven from cellulosic fibers waste as support and a polyurethane resin as matrix. The studied composite was investigated using FT-IR spectroscopy and SEM analyses. FT-IR data confirmed that the non-woven composite was composed of cellulosic fibers and iron. SEM photos indicated that the resin was distributed on the surface of the composite and the iron grains were strongly fixed. The properties of the prepared composites were evaluated and compared with some commercial abrasives. The effect of some chemical modifications on the non-woven characteristics and on the lifetime of the prepared abrasives was studied. The concentration of the resin on the lifetime of abrasives was also discussed. The results showed that the composites made with polyurethane resin had longer life compared to some commercial abrasives. Chemically modified non-woven supports exhibited better results compared to untreated non-woven supports.
    Keywords Fourier transform infrared spectroscopy ; iron ; polyurethanes ; wastes
    Language English
    Dates of publication 2022-0603
    Size p. 2189-2203.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 2182715-1
    ISSN 1544-046X ; 1544-0478
    ISSN (online) 1544-046X
    ISSN 1544-0478
    DOI 10.1080/15440478.2020.1807439
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article ; Online: Treatment of Femoral Shaft Fractures in Patients with Klippel-Trénaunay Syndrome: A Report of 2 Cases.

    Mahjoub, Adel / Gilbert, Grace / Turkula, Stefan / Mendez, Gregory / Graf, Kenneth / Kim, Tae Won B

    JBJS case connector

    2021  Volume 11, Issue 3

    Abstract: Cases: Long-bone fractures in patients with Klippel-Trénaunay syndrome (KTS), a rare disorder of the venous, lymphatic, and capillary system, are difficult to treat with many complications. Two patients diagnosed with KTS presented with closed femoral ... ...

    Abstract Cases: Long-bone fractures in patients with Klippel-Trénaunay syndrome (KTS), a rare disorder of the venous, lymphatic, and capillary system, are difficult to treat with many complications. Two patients diagnosed with KTS presented with closed femoral shaft fractures after low-energy falls. Conservative treatment, open reduction internal fixation, and intramedullary nailing resulted in painful nonunions. Ultimately, both patients achieved pain relief and the ability to ambulate after en bloc resection and reconstruction.
    Conclusions: These cases demonstrate the challenges in achieving bony union when treating long-bone fractures in KTS. The feasibility of undergoing extensive resection and reconstruction to regain function is best approached with a multidisciplinary team.
    MeSH term(s) Femoral Fractures/complications ; Femoral Fractures/surgery ; Femur/surgery ; Fracture Fixation, Intramedullary/methods ; Humans ; Klippel-Trenaunay-Weber Syndrome/complications ; Open Fracture Reduction
    Language English
    Publishing date 2021-08-16
    Publishing country United States
    Document type Case Reports ; Journal Article
    ISSN 2160-3251
    ISSN (online) 2160-3251
    DOI e21.00136
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Eco-friendly synthesis of Cynomorium coccineum extract for controlled production of copper nanoparticles for sorption of methylene blue dye

    Nouha Sebeia / Mahjoub Jabli / Adel Ghith / Tawfik A. Saleh

    Arabian Journal of Chemistry, Vol 13, Iss 2, Pp 4263-

    2020  Volume 4274

    Abstract: A biological extract of Cynomorium coccineum was used for the synthesis of copper nanoparticles using copper sulphate as a starting matter. Fourier transform infrared spectroscopy (FT-IR) showed the presence of the functional groups characteristics of ... ...

    Abstract A biological extract of Cynomorium coccineum was used for the synthesis of copper nanoparticles using copper sulphate as a starting matter. Fourier transform infrared spectroscopy (FT-IR) showed the presence of the functional groups characteristics of biological extract, i.e., triterpenes, phenolics, flavonoids, and other reducing agents. SEM analysis showed that the surface of the particles were clusters and rough. The Elemental analysis by energy-dispersive X-ray (EDX) proved the purity of the particles, showing the presence of elemental copper oxide which was surrounded with some elements of the plant. X-ray diffraction (XRD) pattern confirmed that the crystalline nature of the particles was affected by temperature. The average crystallite size was calculated to be about 14.2 nm. The total weight loss registered within the thermogravimetric (TG) analysis was 52.8%, suggesting that about 47.2% of the metallic copper is present in the prepared copper nanoparticles which supported the data reported within EDX analysis. The adsorption characteristics of the nanoadsorbents were examined using methylene blue as adsorbate and the bio-sorption capacity reached 64 mg/g at room temperature. The values of B and bt, calculated from Temkin equation, increased with the increase in temperature (295–328 K), indicating endothermic adsorption and strong dye-nanoadsorbent interaction. The mean free energy (E = 100–129.1 kJ/mol), calculated from Dubinin-Radushkevich indicated that the chemisorption is the process involved for the adsorption of methylene blue. In summary, the results obtained in this study deliver the design and the synthesis of new materials for removing pollutants. Keywords: Biological, Cynomorium coccineum, Nanoparticles, Nano-adsorbent, Molecular solute-solvent interactions, Molecular-level (microscopic) interactions in solutions
    Keywords Chemistry ; QD1-999
    Subject code 500
    Language English
    Publishing date 2020-02-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  6. Article ; Online: Melatonin, vitamins and minerals supplements for the treatment of Covid-19 and Covid-like illness: A prospective, randomized, double-blind multicenter study.

    Mahjoub, Lobna / Youssef, Rym / Yaakoubi, Hajer / Salah, Houda Ben / Jaballah, Rahma / Mejri, Moez / Sekma, Adel / Trabelsi, Imen / Nouira, Semir / Khrouf, Mariem / Soltane, Houda Ben / Mezgar, Zied / Boukadida, Lotfi / Zorgati, Asma / Boukef, Riadh

    Explore (New York, N.Y.)

    2023  Volume 20, Issue 1, Page(s) 95–100

    Abstract: Background: Melatonin, zinc, and multivitamins are among most recommended supplements in the fight against coronavirus disease 2019 (COVID-19). We aimed to examine the efficacy and safety of this association in the treatment of COVID-19 and COVID-like ... ...

    Abstract Background: Melatonin, zinc, and multivitamins are among most recommended supplements in the fight against coronavirus disease 2019 (COVID-19). We aimed to examine the efficacy and safety of this association in the treatment of COVID-19 and COVID-like illnesses.
    Methods: We conducted a multicenter prospective, randomized, double-blind, controlled trial. Patients with no medical history consulting the emergency department for covid and covid-like illness and who were not hospitalized were included. Patients were assigned in a 1:1 ratio to the treatment or the placebo group. The primary outcome was studying the effectiveness of zinc multivitamin supplement and melatonin in the treatment of COVID and -like illnesses symptoms' according to the time from randomization to clinical improvement. The pre-specified secondary outcomes were date of disappearance of symptoms present on admission, appearance of an adverse effect due to the administration of the treatment, number of patients developing complications, requiring hospitalization, requiring respiratory support.
    Results: One hundred sixty four patients were eligible for the study and were randomized to either the treatment group or the placebo group. Overall, 128 of the 164 patients had a PCR for SARS-CoV-2, yielding a positive PCR result in 49.1% of them. Regarding the disappearance of all initial presenting symptoms: on the
    Conclusions: Our results showed that daily doses of Melatonin, zinc and vitamins did significantly reduce the duration of symptoms accelerating its disappearance among patients consulting with COVID-19 or COVID-19 like illness.
    MeSH term(s) Humans ; COVID-19 ; SARS-CoV-2 ; Melatonin/therapeutic use ; Vitamins/therapeutic use ; Prospective Studies ; Treatment Outcome ; Minerals/therapeutic use ; Zinc/therapeutic use
    Chemical Substances Melatonin (JL5DK93RCL) ; Vitamins ; Minerals ; Zinc (J41CSQ7QDS)
    Language English
    Publishing date 2023-06-20
    Publishing country United States
    Document type Randomized Controlled Trial ; Multicenter Study ; Journal Article
    ZDB-ID 2183945-1
    ISSN 1878-7541 ; 1550-8307
    ISSN (online) 1878-7541
    ISSN 1550-8307
    DOI 10.1016/j.explore.2023.06.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Effective Dyeing of Cotton Fibers Using Cynomorium Coccineum L. Peel Extracts: Study of the Influential Factors Using Surface Response Methodology

    Sebeia, Nouha / Jabli, Mahjoub / Ghanmi, Hanen / Ghith, Adel / Saleh, Tawfik A

    Journal of natural fibers. 2021 Jan. 02, v. 18, no. 1

    2021  

    Abstract: The current paper focuses on the use of Cynomorium Coccineum peels extract for cotton fibers dyeing in an easy and effective way without the use of mordants. Prepared extracts were analyzed using UV-visible, FT-IR spectroscopy, Total Contents both ... ...

    Abstract The current paper focuses on the use of Cynomorium Coccineum peels extract for cotton fibers dyeing in an easy and effective way without the use of mordants. Prepared extracts were analyzed using UV-visible, FT-IR spectroscopy, Total Contents both Phenolic (TPC) and Flavanoid (TFC) and their ability to reduce reactive species by the 2,2-diphenyl-1-picrylhydrazyl radical scavenging motion experiments. The effect of the most important dyeing conditions, including dyebath pH, temperature, extract concentration, and time contact on the performance of cotton fibers dyeing was discussed. Data were assessed by the measurement of the color strength (K/S). A surface design was adopted to assess the influential factors and the interaction effects of the studied parameters. The optimal conditions for dyeing were to be: pH = 5.5, T = 72.5°C, extract concentration = 0.275% and dyeing duration = 25 min. As also observed, changing the concentration of the electrolyte NaCl, the color strength can be improved. Overall, the friendly extracted dye exhibited excellent textile dyeing characteristics with uniform morphology as proved by SEM analysis and good fastness to washing, perspiration, and rubbing.
    Keywords 2,2-diphenyl-1-picrylhydrazyl ; Cynomorium ; Fourier transform infrared spectroscopy ; color ; dyeing ; dyes ; electrolytes ; fabrics ; mordants ; pH ; temperature
    Language English
    Dates of publication 2021-0102
    Size p. 21-33.
    Publishing place Taylor & Francis
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2182715-1
    ISSN 1544-046X ; 1544-0478
    ISSN (online) 1544-046X
    ISSN 1544-0478
    DOI 10.1080/15440478.2019.1612302
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  8. Article: [λ‐Carrageenan‐calcium phosphate] and [sodium alginate‐calcium phosphate] modified with dimethyl diallyl ammonium chloride and diallylamin co-polymer as efficient adsorbents of anionic dyes

    Sebeia, Nouha / Jabli, Mahjoub / Ghith, Adel

    International journal of biological macromolecules. 2019 Apr. 01, v. 126

    2019  

    Abstract: Alginate and carrageenan bio-polymers have been proved to be, only, good sorbents of cationic dyes. In this study, we reported the synthesis of [λ‐carrageenan‐calcium phosphate] and [sodium alginate‐calcium phosphate] modified with dimethyl diallyl ... ...

    Abstract Alginate and carrageenan bio-polymers have been proved to be, only, good sorbents of cationic dyes. In this study, we reported the synthesis of [λ‐carrageenan‐calcium phosphate] and [sodium alginate‐calcium phosphate] modified with dimethyl diallyl ammonium chloride and diallylamin co-polymer, which could be used as effective adsorbents of anionic dyes. Evidence of chemical modification was proved through Fourier Transform Infrared Spectroscopy (FT-IR) band shifting, peaks broadening in X-Ray Diffraction (XRD) and the change in thermal event (TGA). The sorption process was studied using acid blue 25 as representative anionic dye. The adsorbed quantity reached, at equilibrium, 446 mg/g and 195 mg/g using cationized [sodium alginate‐calcium phosphate] and cationized [λ‐carrageenan‐calcium phosphate], respectively. However, it does not exceed 3.4 mg/g in the case of the unmodified [sodium alginate‐calcium phosphate]. The sorption of acid blue 25 using cationized hybrid materials complied well with the pseudo-second-order suggesting a chemi-sorption. Freundlich isotherm described well the adsorption mechanism of the three studied adsorbents. In summary, the high sorption capacities of the cationized hybrid materials obtained in this study suggest their use as effective adsorbents of acid dyes from wastewaters.
    Keywords Fourier transform infrared spectroscopy ; X-ray diffraction ; adsorbents ; adsorption ; alginates ; biopolymers ; carrageenan ; composite polymers ; dyes ; phosphates ; sorption isotherms ; thermogravimetry ; wastewater
    Language English
    Dates of publication 2019-0401
    Size p. 641-652.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2018.12.260
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  9. Article ; Online: [λ‑Carrageenan‑calcium phosphate] and [sodium alginate‑calcium phosphate] modified with dimethyl diallyl ammonium chloride and diallylamin co-polymer as efficient adsorbents of anionic dyes.

    Sebeia, Nouha / Jabli, Mahjoub / Ghith, Adel

    International journal of biological macromolecules

    2018  Volume 126, Page(s) 641–652

    Abstract: Alginate and carrageenan bio-polymers have been proved to be, only, good sorbents of cationic dyes. In this study, we reported the synthesis of [λ‑carrageenan‑calcium phosphate] and [sodium alginate‑calcium phosphate] modified with dimethyl diallyl ... ...

    Abstract Alginate and carrageenan bio-polymers have been proved to be, only, good sorbents of cationic dyes. In this study, we reported the synthesis of [λ‑carrageenan‑calcium phosphate] and [sodium alginate‑calcium phosphate] modified with dimethyl diallyl ammonium chloride and diallylamin co-polymer, which could be used as effective adsorbents of anionic dyes. Evidence of chemical modification was proved through Fourier Transform Infrared Spectroscopy (FT-IR) band shifting, peaks broadening in X-Ray Diffraction (XRD) and the change in thermal event (TGA). The sorption process was studied using acid blue 25 as representative anionic dye. The adsorbed quantity reached, at equilibrium, 446 mg/g and 195 mg/g using cationized [sodium alginate‑calcium phosphate] and cationized [λ‑carrageenan‑calcium phosphate], respectively. However, it does not exceed 3.4 mg/g in the case of the unmodified [sodium alginate‑calcium phosphate]. The sorption of acid blue 25 using cationized hybrid materials complied well with the pseudo-second-order suggesting a chemi-sorption. Freundlich isotherm described well the adsorption mechanism of the three studied adsorbents. In summary, the high sorption capacities of the cationized hybrid materials obtained in this study suggest their use as effective adsorbents of acid dyes from wastewaters.
    MeSH term(s) Adsorption ; Alginates/chemistry ; Allyl Compounds/chemistry ; Anions ; Calcium Phosphates/chemistry ; Carrageenan/chemistry ; Coloring Agents/chemistry ; Hydrogen-Ion Concentration ; Kinetics ; Polymers/chemistry ; Quaternary Ammonium Compounds/chemistry ; Sodium Chloride/chemistry ; Spectroscopy, Fourier Transform Infrared ; Thermodynamics ; Thermogravimetry ; Time Factors ; X-Ray Diffraction
    Chemical Substances Alginates ; Allyl Compounds ; Anions ; Calcium Phosphates ; Coloring Agents ; Polymers ; Quaternary Ammonium Compounds ; Sodium Chloride (451W47IQ8X) ; diallyldimethylammonium chloride (8MC08B895B) ; Carrageenan (9000-07-1) ; calcium phosphate (97Z1WI3NDX)
    Language English
    Publishing date 2018-12-29
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2018.12.260
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Effective Dyeing of Cotton Fibers Using Cynomorium Coccineum L. Peel Extracts: Study of the Influential Factors Using Surface Response Methodology

    Sebeia, Nouha / Jabli, Mahjoub / Ghanmi, Hanen / Ghith, Adel / Saleh, Tawfik A.

    Journal of natural fibers

    2021  Volume 18, Issue 1/3, Page(s) 21

    Language English
    Document type Article
    ZDB-ID 2182715-1
    ISSN 1544-0478
    Database Current Contents Nutrition, Environment, Agriculture

    More links

    Kategorien

To top