1.Phytochemical constituents, antioxidant and antibacterial activities of methanolic extract of Ardisia elliptica
Al-Abd M. Nazeh ; Nor Mohamed Zurainee ; Mansor Marzida ; Zajmi Asdren ; Hasan Shahnaz Mohd ; Azhar Fadzly ; Kassim Mustafa
Asian Pacific Journal of Tropical Biomedicine 2017;7(6):569-576
Objective: To investigate the antioxidant, antibacterial, and chemical ingredients of Ardisia elliptica (A. elliptica) methanolic extracts. Methods: The plant was extracted using methanol. Antibacterial and antioxidant activ-ities were evaluated. Results: The results showed that both fruit and leaf extract of A. elliptica have significant antibacterial activities against Gram-positive and Gram-negative bacteria. Fruit extracts showed higher content of phenolic (71 ± 0.03 GAE/mg extract dry weight), in com-parison to the leaf extracts (37 ± 0.05 GAE/mg extract dry weight). Flavonoid content, and Fe2+chelating activity of fruit extracts were higher than leaf extract. The percentage radical inhibition of fruit extract is found to be higher (70%) than that of leaf extract (60%). LCMS results indicated that the major compounds in the fruit extract were Gingerol, Aspidin, Kampherol, and Stercuresin, while the leaf extract contained Gingerol, Aspidin, Triangularin, and Salicyl acyl glucuronide. Furthermore, the results of GCMS indicated that fruit extract contained these major compounds:Vitamin E Tocopherol, 5-hepylresornicol, 2-Nonylmalonic acid, 5-pentadecylresornicol, and Stigmasta-7-22-dien-3-ol. However, leaf extract of A. elliptica contained these major compounds: Alpha Amyrenol, 4,4, 6, 6a, 6b, 8, 8a, 9,10, 11,12,12a, 14, 14a, 14b octadehydro-2H-picen-3-one, and Lonasterol, 4-t-Butyl-2-[4-nitrophenyl] phenol. Conclusions: The results provide evidence that fruit and leaf of A. elliptica extracts might indeed be used as a potential source of effective natural antimicrobial and anti-oxidant agents in pharmaceutical and food industries.
2.Neuropathic Pain after Adolescent Idiopathic Scoliosis Correction Surgery
Mohd Shahnaz HASAN ; Khean Jin GOH ; Hing Wa YIP ; Siti Mariam MOHAMAD ; Teik Seng CHAN ; Kok Ian CHONG ; Amber HASEEB ; Chee Kidd CHIU ; Chris Chan Yin WEI ; Mun Keong KWAN
Asian Spine Journal 2021;15(5):628-635
Methods:
Forty AIS patients were recruited. Demographic, preoperative, and postoperative data were recorded. The magnitude and characteristics of postoperative pain were assessed using the painDETECT questionnaire through telephone enquiries at intervals of 2, 6, 12, and 24 weeks. Statistical analyses were followed by Pearson correlation test to determine the relationship between pain scores at 6, 12, and 24 weeks with the risk factors.
Results:
Based on the painDETECT questionnaire, 90% of the patients had nociceptive pain, and 10% had a possible neuropathic pain component at 2 weeks postoperatively as per a mean painDETECT score of 7.1±4.5. Assessments at 6, 12, and 24 weeks showed that no patients had neuropathic pain with painDETECT scores of 4.4±3.2, 2.9±2.9, and 1.5±2.0, respectively. There was a significant correlation between total postoperative morphine use during 48 hours after the surgery and a tendency to develop neuropathic pain (p=0.022).
Conclusions
Chronic neuropathic pain was uncommon in AIS patients who had undergone PSF surgery. Higher opioid consumption will increase the possibility of developing chronic neuropathic pain.
3. Phytochemical constituents, antioxidant and antibacterial activities of methanolic extract of Ardisia elliptica
Nazeh M. AL-ABD ; Zurainee Mohamed NOR ; Nazeh M. AL-ABD ; Marzida MANSOR ; Mohd Shahnaz HASAN ; Mustafa KASSIM ; Asdren ZAJMI ; Fadzly AZHAR
Asian Pacific Journal of Tropical Biomedicine 2017;7(6):569-576
Objective To investigate the antioxidant, antibacterial, and chemical ingredients of Ardisia elliptica (A. elliptica) methanolic extracts. Methods The plant was extracted using methanol. Antibacterial and antioxidant activities were evaluated. Results The results showed that both fruit and leaf extract of A. elliptica have significant antibacterial activities against Gram-positive and Gram-negative bacteria. Fruit extracts showed higher content of phenolic (71 ± 0.03 GAE/mg extract dry weight), in comparison to the leaf extracts (37 ± 0.05 GAE/mg extract dry weight). Flavonoid content, and Fe
4.The anatomical locations of postoperative pain and their recovery trajectories following Posterior Spinal Fusion (PSF) surgery in Adolescent Idiopathic Scoliosis (AIS) patients
Chee Kidd Chiu ; Kok Ian Chong ; Teik Seng Chan ; Siti Mariam Mohamad ; Mohd Shahnaz Hasan ; Chris Yin Wei Chan ; Mun Keong Kwan
The Medical Journal of Malaysia 2020;75(1):12-17
Introduction: This study looked into the different anatomical
locations of pain and their trajectories within the first two
weeks after Posterior Spinal Fusion (PSF) surgery for
Adolescent Idiopathic Scoliosis (AIS).
Methods: We prospectively recruited patients with
Adolescent Idiopathic Scoliosis (AIS) scheduled for PSF
surgery. The anatomical locations of pain were divided into
four: (1) surgical wound pain; (2) shoulder pain; (3) neck
pain; and (4) low back pain. The anatomical locations of pain
were charted using the visual analogue pain score at
intervals of 12, 24, 36, 48 hours; and from day-3 to -14.
Patient-controlled analgesia (morphine), use of celecoxib
capsules, acetaminophen tablets and oxycodone
hydrochloride capsule consumption were recorded.
Results: A total of 40 patients were recruited. Patients
complained of surgical wound pain score of 6.2±2.1 after
surgery. This subsequently reduced to 4.2±2.0 by day-4, and
to 2.4±1.3 by day-7. Shoulder pain scores of symptomatic
patients peaked to 4.2±2.7 at 24 hours and 36 hours which
then reduced to 1.8±1.1 by day-8. Neck pain scores of
symptomatic patients reduced from 4.2±1.9 at 12 hours to
1.8±1.1 by day-4. Low back pain scores of symptomatic
patients reduced from 5.3±2.3 at 12 hours to 1.8±1.1 by day12.
Conclusions: Despite the presence of different anatomical
locations of pain after surgery, surgical wound was the most
significant pain and other anatomical locations of pain were
generally mild. Surgical wound pain reduced to a tolerable
level by day-4 when patients can then be comfortably
discharged. This finding provides useful information for
clinicians, patients and their caregivers.
5.SEVERE RIGID IDIOPATHIC SCOLIOSIS: SINGLE-STAGED POSTERIOR SPINAL FUSION (PSF) USING PEDICLE SCREW CONSTRUCTS WITHOUT OSTEOTOMIES LED TO SHORTER OPERATION DURATION, LENGTH OF STAY AND FASTER RECOVERY
CHRIS YIN WEI CHAN ; WENG HONG CHUNG ; YUKI MIHARA ; SIN YING LEE ; PEI YING CH&rsquo ; NG ; MOHD SHAHNAZ HASAN ; CHEE KIDD CHIU ; MUN KEONG KWAN
Malaysian Orthopaedic Journal 2019;13(Supplement B):4-