1.Meta-analysis and trial sequential analysis of pancreatic stump closure using a hand-sewn or stapler technique in distal pancreatectomy
Shahin HAJIBANDEH ; Shahab HAJIBANDEH ; Mohammed Abdallah HABLUS ; Hassaan BARI ; Adithya Malolan PATHANK ; Majid ALI ; Jawad AHMAD ; Gabriele MARANGONI ; Saboor KHAN ; For Ta LAM
Annals of Hepato-Biliary-Pancreatic Surgery 2024;28(3):302-314
This study aimed to compare outcomes of hand-sewn and stapler closure techniques of pancreatic stump in patients undergoing distal pancreatectomy (DP). Impact of stapler closure reinforcement using mesh on outcomes was also evaluated. Literature search was carried out using multiple data sources to identify studies that compared hand-sewn and stapler closure techniques in management of pancreatic stump following DP. Odds ratio (OR) was determined for clinically relevant postoperative pancreatic fistula (POPF) via random-effects modelling. Subsequently, trial sequential analysis was performed. Thirty-two studies with a total of 4,022 patients undergoing DP with hand-sewn (n = 1,184) or stapler (n = 2,838) closure technique of pancreatic stump were analyzed. Hand-sewn closure significantly increased the risk of clinically relevant POPF compared to stapler closure (OR: 1.56, p = 0.02). When stapler closure was considered, staple line reinforcement significantly reduced formation of such POPF (OR: 0.54, p = 0.002). When only randomized controlled trials were considered, there was no significant difference in clinically relevant POPF between hand-sewn and stapler closure techniques (OR: 1.20, p = 0.64) or between reinforced and standard stapler closure techniques (OR: 0.50, p = 0.08). When observational studies were considered, hand-sewn closure was associated with a significantly higher rate of clinically relevant POPF compared to stapler closure (OR: 1.59, p = 0.03). Moreover, when stapler closure was considered, staple line reinforcement significantly reduced formation of such POPF (OR: 0.55, p = 0.02). Trial sequential analysis detected risk of type 2 error. In conclusion, reinforced stapler closure in DP may reduce risk of clinically relevant POPF compared to hand-sewn closure or stapler closure without reinforcement.Future randomized research is needed to provide stronger evidence.
2.Value of Spinal Infection Treatment Evaluation Score, Pola Classification, and Brighton Spondylodiscitis Score from Decision to Surgery in Patients with Spondylodiscitis: A Receiver-Operating Characteristic Curve Analysis
Majid REZVANI ; Ali AHMADVAND ; Taravat YAZDANIAN ; Parisa AZIMI ; Navid ASKARIARDEHJANI
Asian Spine Journal 2024;18(2):218-226
Methods:
All case records were assessed to extract information on the American Spinal Injury Association (ASIA), Visual Analog Scale (VAS), and Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ) scores before and after surgery. The SITE score, Pola classification, and BSDS were recorded. The receiver-operating characteristic (ROC) curve analysis and the area under the curve (AUC) were applied to estimate the predictive ability of the scoring systems. Patients’ satisfaction with surgery outcomes was evaluated using the VAS, ASIA, JOABPEQ, and Likert scale for quality-of-life evaluation.
Results:
In all 148 patients, case records were reviewed. The mean±standard deviation age of the patients was 54.6±14.7 years. Of these, 112 patients underwent surgery. The AUC scores were 0.86, 0.81, and 0.73 for the SITE score, BSDS, and Pola classification, respectively. In the comparison of the AUC of ROC curves, SITE score vs. BSDS showed a significantly greater AUC, 0.13 (Z =2.1, p =0.037); SITE score vs. Pola classification, 0.05 (Z =0.82, p =0.412); and Pola classification vs. BSDS, 0.08 (Z =1.22, p =0.219). The optimal cutoff score was 8.5 (sensitivity, 80.6%; specificity, 81.2%) for the SITE score and 9.5 (sensitivity, 52.8%; specificity, 83.0%) for the BSDS in the decision to surgery. VAS back pain and JOABPEQ subscales showed a significant difference when compared with preoperative scores. According to ASIA grading, none of the patients experienced neurological deterioration. Overall, patients’ satisfaction was observed.
Conclusions
The findings suggest that the SITE score is a useful measure and helps clinicians make clinically sound decisions in patients with spondylodiscitis.
3.The effects of sesame oil and different doses of estradiol on testicular structure, sperm parameters, and chromatin integrity in old mice
Masoomeh MOHAMMADZADEH ; Majid POURENTEZARI ; Hadi ZARE-ZARDINI ; Ali NABI ; Saeed Ghasemi ESMAILABAD ; Ali KHODADADIAN ; Ali Reza TALEBI
Clinical and Experimental Reproductive Medicine 2021;48(1):34-42
Objective:
Studies of the effects of estrogens on the male reproductive system have emphasized the role of these hormones in male fertility. Sesame oil has many phytoestrogenic compounds and may improve male fertility. This study investigated the effects of sesame oil and different concentrations of estrogen on sperm parameters and DNA integrity in male mice.
Methods:
Twenty old NMRI (The Naval Medical Research Institute) male mice (40 weeks; weight, 30–35 g) were treated with sesame oil or different concentrations of estrogen (estradiol, 1 and 10 μL/kg/ day) or received no treatment (controls). After 35 days, sperm parameters and DNA integrity were assessed and analyzed.
Results:
Sperm count, progressive motility, and morphology were decreased in the group that received 10 μL/kg of estradiol. A remarkably lower percentage of DNA fragmentation and protamine deficiency were detected in the group that received 1 μL/kg of estradiol. In the groups that received sesame oil and 1 μL/kg of estradiol, the numbers of spermatogonia and Leydig cells were higher than in controls. The combination of sesame oil and 1 μL/kg of estradiol led to improved sperm parameters and chromatin and testicular structure.
Conclusion
Based on this study, consumption of sesame oil and a low concentration of estradiol may improve testicular function in older mice.
4.Protective effects of curcumin on chromatin quality, sperm parameters, and apoptosis following testicular torsion-detorsion in mice
Abbas SHAHEDI ; Ali Reza TALEBI ; Aghdas MIRJALILI ; Majid POURENTEZARI
Clinical and Experimental Reproductive Medicine 2021;48(1):27-33
Objective:
The chief outcome of testicular torsion in clinical and experimental contexts is testicular ischemia. Curcumin, a compound with anti-inflammatory and antioxidant properties, has fascinated researchers and clinicians for its promise in the treatment of fertility diseases.
Methods:
Thirty-five fully grown male mice were randomly classified into five groups: control, sham, testicular torsion, treatment group 1 (testicular torsion+short-term curcumin), and treatment group 2 (testicular torsion+long-term curcumin). Thirty-five days later, spermatozoa from the right cauda epididymis were analyzed with regard to count and motility. Toluidine blue (TB), aniline blue (AB), and chromomycin A3 (CMA3) staining assays were used to evaluate the sperm chromatin integrity. In addition, the terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL) test was used to assess apoptosis.Result: Treatment group 1 exhibited a remarkably elevated sperm count compared to the testicular torsion group. Additionally, notably lower sperm motility was found in the testicular torsion group compared to the control, treatment 1, and treatment 2 groups. Staining (CMA3, AB, and TB) and the TUNEL test indicated significantly greater testicular torsion in the torsion group compared to the control group (p<0.05). The data also revealed notably lower results of all sperm chromatin assays and lower apoptosis in both treatment groups relative to the testicular torsion group (p<0.05). Significantly elevated (p<0.05) AB and TB results were noted in treatment group 1 compared to treatment group 2.
Conclusion
Curcumin can compensate for the harmful effects of testicular ischemia and improve sperm chromatin quality in mice.
6.Immunoinformatic analysis of immunogenic B- and T-cell epitopes of MIC4 protein to designing a vaccine candidate against Toxoplasma gondii through an in-silico approach
Ali Dalir GHAFFARI ; Abdolhossein DALIMI ; Fatemeh GHAFFARIFAR ; Majid PIRESTANI ; Hamidreza MAJIDIANI
Clinical and Experimental Vaccine Research 2021;10(1):59-77
Purpose:
Toxoplasmosis, transmitted by Toxoplasma gondii, is a worldwide parasitic disease that affects approximately one-third of the world’s inhabitants. Today, there are no appropriate drugs to deter tissue cysts from developing in infected hosts. So, developing an effective vaccine would be valuable to avoid from toxoplasmosis. Considering the role of microneme antigens such as microneme protein 4 (MIC4) in T. gondii pathogenesis, it can be used as potential candidates for vaccine against T. gondii.
Materials and Methods:
In this study several bioinformatics methods were used to assess the different aspects of MIC4 protein such as secondary and tertiary structure, physicochemical characteristics, the transmembrane domains, subcellular localization, B-cell, helper-T lymphocyte, cytotoxic-T lymphocyte epitopes, and other notable characteristic of this protein design a suitable vaccine against T. gondii.
Results:
The studies revealed that MIC4 protein includes 59 potential post-translational modification sites without any transmembrane domains. Moreover, several probable epitopes of Band T-cells were detected for MIC4. The secondary structure comprised 55.69% random coil, 5.86% beta-turn, 19.31% extended strand, and 19.14% alpha helix. According to the Ramachandran plot results, 87.42% of the amino acid residues were located in the favored, 9.44% in allowed, and 3.14% in outlier regions. The protein allergenicity and antigenicity revealed that it was non-allergenic and antigenic.
Conclusion
This study gives vital basic on MIC4 protein for further research and also established an effective vaccine with different techniques against acute and chronic toxoplasmosis.
8.Effects of Zataria oxymel on obesity, insulin resistance and lipid profile: A randomized, controlled, triple-blind trial.
Jafar ABOLGHASEMI ; Mohammad Ali FARBOODNIAY JAHROMI ; Mohammad HOSSEIN SHARIFI ; Zohreh MAZLOOM ; Leila HOSSEINI ; Nasrindokht ZAMANI ; Majid NIMROUZI
Journal of Integrative Medicine 2020;18(5):401-408
BACKGROUND:
Obesity is a major public health problem and its occurrence is markedly increasing in developed and developing countries. However, few studies have investigated the use of natural products to treat obesity. The effects of taking a combination of oxymel and Zataria multiflora Boiss. (ZM), herein referred to as Zataria oxymel (ZO), on obesity, lipid profile and insulin resistance have not yet been studied.
OBJECTIVE:
This study evaluates the effects of oxymel and ZO on obesity, lipid profile and insulin resistance.
DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS:
In this randomized, controlled, triple-blind trial, overweight patients were randomly divided into three groups and received doses of study compounds twice per day for twelve weeks. Group A received 0.75 g ZM in 10 mL oxymel in each treatment; group B received 1.5 g ZM in 10 mL of oxymel in each treatment and group C (control) only received 10 mL of oxymel in each treatment.
MAIN OUTCOME MEASURES:
Anthropometric parameters, including body mass index (BMI), waist circumference and hip circumference, were measured at the time of registration. Blood tests were carried out at the beginning and once again at end of the study. Blood parameters included fasting blood sugar (FBS), insulin levels, serum lipid profile (total cholesterol, triglyceride, low-density lipoprotein cholesterol and high-density lipoprotein cholesterol) and liver enzymes (aspartate transaminase and alanine transaminase). Serum creatinine was also measured at the beginning of the project and in monthly intervals for three months. The homeostasis model assessment index was calculated as fasting insulin (μIU/mL) × FBS (mg/dL)/405.
RESULTS:
The results showed that patients receiving ZO experienced significant reduction in waist circumference in groups A, B and C, respectively (P < 0.001) but no significant change in BMI. Group A also experienced reduction in hip circumference (P = 0.01). Groups B and C had reduction in the homeostatic model assessment of insulin resistance (P = 0.05 and P = 0.01, respectively), with no significant reduction in FBS. No effect on lipid profile, liver enzymes or serum creatinine was observed in the three groups.
CONCLUSION:
In this study, treatment with ZO and oxymel reduced insulin resistance, and waist and hip circumferences in overweight patients. Nonetheless, the traditional Persian use of ZO as a beverage to improve the anthropometric indices in overweight individuals still requires further research with a larger sample size.
TRIAL REGISTRATION
Iranian Registry of Clinical Trials Code IRCT20171220037976N1.
9.Perceptions of nurses on inter-shift handover: A descriptive study in Hospital Kuala Lumpur, Malaysia
Diane Woei Quan Chong ; Iqbal Ab Rahim ; Baljit Kaur Jaj ; Zainab Ali ; Azizul Nordin ; Noor Dayanawali Abd Majid ; Ainah Jusoh
The Medical Journal of Malaysia 2020;75(6):691-697
practice and care environments are important aspects ofnursing care. The use of a reliable and valid scale canmonitor the quality of handover and provide information forcontinuous improvement of practice. This study aims todescribe the perception of nurses, on the domains of qualityof information, efficiency, interaction and support andpatient involvement. Method: A cross-sectional descriptive study was conductedamong 450 nurses from 37 wards in Hospital Kuala Lumpur.Nurses on shift duty were recruited by conveniencesampling from the Medical, Surgery, Obstetrics &Gynaecology, Orthopaedic and Paediatric wards. Using avalidated questionnaire (Handover Evaluation Scale), nursesself-rated their perceptions using a 7-point scale andprovided open-ended responses to the strengths andchallenges that they faced. Descriptive and inferentialanalyses were done while open-ended questions weresummarised based on key themes. Results: A total of 414 nurses completed the survey (92.0%response rate). Nurses had an overall mean (SD) perceptionscore of 5.01 (SD 0.56). They perceived good interaction andsupport during handover and on the quality of informationthat they received, with mean scores of 5.54 (SD 0.79) and5.19 (SD 0.69), respectively. There was an associationbetween the departments where the nurses worked and theiroverall perceptions on nursing handover (p<0.001).Interruptions being the most common theme emerged fromthe open-ended section.Conclusion: Despite having substantial interaction andsupport amongst nurses, opportunities for improvementswere noted. Improvements in the quality of handoverinformation and reducing interruptions should be the mainemphases as these were perceived to be essential in thecurrent handover practices by nurses.
10.Effects of acrylamide in the presence of vitamin E on sperm parameters, chromatin quality, and testosterone levels in mice
Morteza ANVARI ; Ali Reza TALEBI ; Esmat MANGOLI ; Abbas SHAHEDI ; Mohammad Rasool GHASEMI ; Majid POURENTEZARI
Clinical and Experimental Reproductive Medicine 2020;47(2):101-107
Objective:
The present study investigated sperm chromatin quality and testosterone levels in acrylamide-treated mice and the possible protective effects of vitamin E on the fertility potential of spermatozoa.
Methods:
Thirty-two adult male mice were divided equally into four groups. Group 1 was the control, group 2 received acrylamide (10 mg/kg, water solution), group 3 received vitamin E (100 mg/kg, intraperitoneal), and group 4 received both acrylamide and vitamin E. After 35 days, spermatozoa from the right cauda epididymis were analyzed in terms of count, motility, morphology, and viability. Sperm DNA integrity and chromatin condensation were assessed by acridine orange (AO), aniline blue (AB), toluidine blue (TB), and chromomycin A3 (CMA3) staining.
Results:
In acrylamide-treated mice, significantly lower sperm concentration, viability, motility, and testosterone levels were found in comparison with the control and acrylamide+vitamin E groups (p<0.05). In the vitamin E group, significantly more favorable sperm parameters and testosterone levels were found than in the other groups (p<0.05). There were also significantly more spermatozoa with less condensed chromatin in the acrylamide-treated mice than in the other groups. Moreover, significantly more spermatozoa with mature nuclei (assessed by AB, CMA3, AO, and TB staining) were present in the vitamin E group than in the control and acrylamide+vitamin E groups.
Conclusion
This study revealed the deleterious effects of acrylamide on sperm parameters and sperm chromatin quality. Vitamin E can not only compensate for the toxic effects of acrylamide, but also improve sperm chromatin quality in mice.


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